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[libvirt] PATCH: Change signature of virEventAddHandle to allow multiple calls per FD
by Daniel P. Berrange 19 Nov '08

19 Nov '08

As discussed previously, this patch changes the semantics of the public API for dealing with file handle watches. Previously we would track the watch based on the file handle number directly. With this change, the virEventAddHandle method returns an integer 'watch' number. This watch number is required when unregistering or updating a watch. The watch is also passed into the callback when an event occurrs. This allows for multiple watches to be registered against the same file descriptor. There was quite alot of fallout from this patch requiring many callers to be updated to comply with the new semantics. examples/domain-events/events-c/event-test.c | 7 +- examples/domain-events/events-python/event-test.py | 12 ++-- include/libvirt/libvirt.h | 20 ++++--- include/libvirt/libvirt.h.in | 20 ++++--- python/libvir.c | 8 +- qemud/event.c | 27 ++++++--- qemud/event.h | 10 +-- qemud/mdns.c | 16 +++-- qemud/qemud.c | 59 +++++++++++---------- qemud/qemud.h | 2 src/domain_conf.h | 3 + src/event.c | 8 +- src/event.h | 8 +- src/lxc_driver.c | 25 +++++--- src/qemu_driver.c | 43 ++++++++------- src/remote_internal.c | 27 ++++++--- 16 files changed, 176 insertions(+), 119 deletions(-) Daniel diff --git a/examples/domain-events/events-c/event-test.c b/examples/domain-events/events-c/event-test.c --- a/examples/domain-events/events-c/event-test.c +++ b/examples/domain-events/events-c/event-test.c @@ -40,8 +40,8 @@ int myDomainEventCallback2 (virConnectPt int event, int detail, void *opaque); int myEventAddHandleFunc (int fd, int event, virEventHandleCallback cb, void *opaque); -void myEventUpdateHandleFunc(int fd, int event); -int myEventRemoveHandleFunc(int fd); +void myEventUpdateHandleFunc(int watch, int event); +int myEventRemoveHandleFunc(int watch); int myEventAddTimeoutFunc(int timeout, virEventTimeoutCallback cb, void *opaque); @@ -308,7 +308,8 @@ int main(int argc, char **argv) } if(h_cb) { - h_cb(h_fd, + h_cb(0, + h_fd, myPollEventToEventHandleType(pfd.revents & h_event), h_opaque); } diff --git a/examples/domain-events/events-python/event-test.py b/examples/domain-events/events-python/event-test.py --- a/examples/domain-events/events-python/event-test.py +++ b/examples/domain-events/events-python/event-test.py @@ -75,19 +75,19 @@ def myAddHandle(fd, events, cb, opaque): mypoll.register(fd, myEventHandleTypeToPollEvent(events)) -def myUpdateHandle(fd, event): +def myUpdateHandle(watch, event): global h_fd, h_events #print "Updating Handle %s %s" % (str(fd), str(events)) h_fd = fd h_events = event - mypoll.unregister(fd) - mypoll.register(fd, myEventHandleTypeToPollEvent(event)) + mypoll.unregister(watch) + mypoll.register(watch, myEventHandleTypeToPollEvent(event)) -def myRemoveHandle(fd): +def myRemoveHandle(watch): global h_fd #print "Removing Handle %s" % str(fd) h_fd = 0 - mypoll.unregister(fd) + mypoll.unregister(watch) def myAddTimeout(timeout, cb, opaque): global t_active, t_timeout, t_cb, t_opaque @@ -175,7 +175,7 @@ def main(): if h_cb != None: #print "Invoking Handle CB" - h_cb(h_fd, myPollEventToEventHandleType(revents & h_events), + h_cb(0, h_fd, myPollEventToEventHandleType(revents & h_events), h_opaque[0], h_opaque[1]) #print "DEBUG EXIT" diff --git a/include/libvirt/libvirt.h b/include/libvirt/libvirt.h --- a/include/libvirt/libvirt.h +++ b/include/libvirt/libvirt.h @@ -1121,13 +1121,15 @@ typedef enum { /** * virEventHandleCallback: * + * @watch: watch on which the event occurred * @fd: file handle on which the event occurred * @events: bitset of events from virEventHandleType constants * @opaque: user data registered with handle * - * callback for receiving file handle events + * Callback for receiving file handle events. The callback will + * be invoked once for each event which is pending. */ -typedef void (*virEventHandleCallback)(int fd, int events, void *opaque); +typedef void (*virEventHandleCallback)(int watch, int fd, int events, void *opaque); /** * virEventAddHandleFunc: @@ -1137,29 +1139,33 @@ typedef void (*virEventHandleCallback)(i * @opaque: user data to pass to the callback * * Part of the EventImpl, this callback Adds a file handle callback to - * listen for specific events + * listen for specific events. The same file handle can be registered + * multiple times provided the requested event sets are non-overlapping + * + * Returns a handle watch number to be used for updating + * and unregistering for events */ typedef int (*virEventAddHandleFunc)(int fd, int event, virEventHandleCallback cb, void *opaque); /** * virEventUpdateHandleFunc: - * @fd: file descriptor to modify + * @watch: file descriptor watch to modify * @event: new events to listen on * * Part of the EventImpl, this user-provided callback is notified when * events to listen on change */ -typedef void (*virEventUpdateHandleFunc)(int fd, int event); +typedef void (*virEventUpdateHandleFunc)(int watch, int event); /** * virEventRemoveHandleFunc: - * @fd: file descriptor to stop listening on + * @watch: file descriptor watch to stop listening on * * Part of the EventImpl, this user-provided callback is notified when * an fd is no longer being listened on */ -typedef int (*virEventRemoveHandleFunc)(int fd); +typedef int (*virEventRemoveHandleFunc)(int watch); /** * virEventTimeoutCallback: diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -1121,13 +1121,15 @@ typedef enum { /** * virEventHandleCallback: * + * @watch: watch on which the event occurred * @fd: file handle on which the event occurred * @events: bitset of events from virEventHandleType constants * @opaque: user data registered with handle * - * callback for receiving file handle events + * Callback for receiving file handle events. The callback will + * be invoked once for each event which is pending. */ -typedef void (*virEventHandleCallback)(int fd, int events, void *opaque); +typedef void (*virEventHandleCallback)(int watch, int fd, int events, void *opaque); /** * virEventAddHandleFunc: @@ -1137,29 +1139,33 @@ typedef void (*virEventHandleCallback)(i * @opaque: user data to pass to the callback * * Part of the EventImpl, this callback Adds a file handle callback to - * listen for specific events + * listen for specific events. The same file handle can be registered + * multiple times provided the requested event sets are non-overlapping + * + * Returns a handle watch number to be used for updating + * and unregistering for events */ typedef int (*virEventAddHandleFunc)(int fd, int event, virEventHandleCallback cb, void *opaque); /** * virEventUpdateHandleFunc: - * @fd: file descriptor to modify + * @watch: file descriptor watch to modify * @event: new events to listen on * * Part of the EventImpl, this user-provided callback is notified when * events to listen on change */ -typedef void (*virEventUpdateHandleFunc)(int fd, int event); +typedef void (*virEventUpdateHandleFunc)(int watch, int event); /** * virEventRemoveHandleFunc: - * @fd: file descriptor to stop listening on + * @watch: file descriptor watch to stop listening on * * Part of the EventImpl, this user-provided callback is notified when * an fd is no longer being listened on */ -typedef int (*virEventRemoveHandleFunc)(int fd); +typedef int (*virEventRemoveHandleFunc)(int watch); /** * virEventTimeoutCallback: diff --git a/python/libvir.c b/python/libvir.c --- a/python/libvir.c +++ b/python/libvir.c @@ -1940,15 +1940,15 @@ libvirt_virEventInvokeHandleCallback(PyO libvirt_virEventInvokeHandleCallback(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) { - int fd, event; + int watch, fd, event; PyObject *py_f; PyObject *py_opaque; virEventHandleCallback cb; void *opaque; if (!PyArg_ParseTuple - (args, (char *) "iiOO:virEventInvokeHandleCallback", - &fd, &event, &py_f, &py_opaque + (args, (char *) "iiiOO:virEventInvokeHandleCallback", + &watch, &fd, &event, &py_f, &py_opaque )) return VIR_PY_INT_FAIL; @@ -1956,7 +1956,7 @@ libvirt_virEventInvokeHandleCallback(PyO opaque = (void *) PyvirVoidPtr_Get(py_opaque); if(cb) - cb (fd, event, opaque); + cb (watch, fd, event, opaque); return VIR_PY_INT_SUCCESS; } diff --git a/qemud/event.c b/qemud/event.c --- a/qemud/event.c +++ b/qemud/event.c @@ -37,6 +37,7 @@ /* State for a single file handle being monitored */ struct virEventHandle { + int watch; int fd; int events; virEventHandleCallback cb; @@ -71,6 +72,9 @@ struct virEventLoop { /* Only have one event loop */ static struct virEventLoop eventLoop; +/* Unique ID for the next FD watch to be registered */ +static int nextWatch = 0; + /* Unique ID for the next timer to be registered */ static int nextTimer = 0; @@ -91,6 +95,7 @@ int virEventAddHandleImpl(int fd, int ev eventLoop.handlesAlloc += EVENT_ALLOC_EXTENT; } + eventLoop.handles[eventLoop.handlesCount].watch = nextWatch++; eventLoop.handles[eventLoop.handlesCount].fd = fd; eventLoop.handles[eventLoop.handlesCount].events = virEventHandleTypeToPollEvent(events); @@ -100,13 +105,13 @@ int virEventAddHandleImpl(int fd, int ev eventLoop.handlesCount++; - return 0; + return nextWatch-1; } -void virEventUpdateHandleImpl(int fd, int events) { +void virEventUpdateHandleImpl(int watch, int events) { int i; for (i = 0 ; i < eventLoop.handlesCount ; i++) { - if (eventLoop.handles[i].fd == fd) { + if (eventLoop.handles[i].watch == watch) { eventLoop.handles[i].events = virEventHandleTypeToPollEvent(events); break; @@ -120,15 +125,15 @@ void virEventUpdateHandleImpl(int fd, in * For this reason we only ever set a flag in the existing list. * Actual deletion will be done out-of-band */ -int virEventRemoveHandleImpl(int fd) { +int virEventRemoveHandleImpl(int watch) { int i; - EVENT_DEBUG("Remove handle %d", fd); + EVENT_DEBUG("Remove handle %d", watch); for (i = 0 ; i < eventLoop.handlesCount ; i++) { if (eventLoop.handles[i].deleted) continue; - if (eventLoop.handles[i].fd == fd) { - EVENT_DEBUG("mark delete %d", i); + if (eventLoop.handles[i].watch == watch) { + EVENT_DEBUG("mark delete %d %d", i, eventLoop.handles[i].fd); eventLoop.handles[i].deleted = 1; return 0; } @@ -356,9 +361,13 @@ static int virEventDispatchHandles(struc if (fds[i].revents) { hEvents = virPollEventToEventHandleType(fds[i].revents); - EVENT_DEBUG("Dispatch %d %d %p", fds[i].fd, fds[i].revents, + EVENT_DEBUG("Dispatch %d %d %d %p", + eventLoop.handles[i].watch, + fds[i].fd, fds[i].revents, eventLoop.handles[i].opaque); - (eventLoop.handles[i].cb)(fds[i].fd, hEvents, + (eventLoop.handles[i].cb)(eventLoop.handles[i].watch, + fds[i].fd, + hEvents, eventLoop.handles[i].opaque); } } diff --git a/qemud/event.h b/qemud/event.h --- a/qemud/event.h +++ b/qemud/event.h @@ -24,7 +24,7 @@ #ifndef __VIRTD_EVENT_H__ #define __VIRTD_EVENT_H__ -#include "../src/event.h" +#include "internal.h" /** * virEventAddHandleImpl: register a callback for monitoring file handle events @@ -42,21 +42,21 @@ int virEventAddHandleImpl(int fd, int ev /** * virEventUpdateHandleImpl: change event set for a monitored file handle * - * @fd: file handle to monitor for events + * @watch: watch whose handle to update * @events: bitset of events to watch from POLLnnn constants * * Will not fail if fd exists */ -void virEventUpdateHandleImpl(int fd, int events); +void virEventUpdateHandleImpl(int watch, int events); /** * virEventRemoveHandleImpl: unregister a callback from a file handle * - * @fd: file handle to stop monitoring for events + * @watch: watch whose handle to remove * * returns -1 if the file handle was not registered, 0 upon success */ -int virEventRemoveHandleImpl(int fd); +int virEventRemoveHandleImpl(int watch); /** * virEventAddTimeoutImpl: register a callback for a timer event diff --git a/qemud/mdns.c b/qemud/mdns.c --- a/qemud/mdns.c +++ b/qemud/mdns.c @@ -68,6 +68,7 @@ struct libvirtd_mdns { /* Avahi API requires this struct names in the app :-( */ struct AvahiWatch { + int watch; int fd; int revents; AvahiWatchCallback callback; @@ -228,17 +229,18 @@ static void libvirtd_mdns_client_callbac } -static void libvirtd_mdns_watch_dispatch(int fd, int events, void *opaque) +static void libvirtd_mdns_watch_dispatch(int watch, int fd, int events, void *opaque) { AvahiWatch *w = (AvahiWatch*)opaque; int fd_events = virEventHandleTypeToPollEvent(events); - AVAHI_DEBUG("Dispatch watch FD %d Event %d", fd, fd_events); + AVAHI_DEBUG("Dispatch watch %d FD %d Event %d", watch, fd, fd_events); w->revents = fd_events; w->callback(w, fd, fd_events, w->userdata); } static AvahiWatch *libvirtd_mdns_watch_new(const AvahiPoll *api ATTRIBUTE_UNUSED, - int fd, AvahiWatchEvent event, AvahiWatchCallback cb, void *userdata) { + int fd, AvahiWatchEvent event, + AvahiWatchCallback cb, void *userdata) { AvahiWatch *w; virEventHandleType hEvents; if (VIR_ALLOC(w) < 0) @@ -251,8 +253,8 @@ static AvahiWatch *libvirtd_mdns_watch_n AVAHI_DEBUG("New handle %p FD %d Event %d", w, w->fd, event); hEvents = virPollEventToEventHandleType(event); - if (virEventAddHandleImpl(fd, hEvents, - libvirtd_mdns_watch_dispatch, w) < 0) { + if ((w->watch = virEventAddHandleImpl(fd, hEvents, + libvirtd_mdns_watch_dispatch, w)) < 0) { VIR_FREE(w); return NULL; } @@ -263,7 +265,7 @@ static void libvirtd_mdns_watch_update(A static void libvirtd_mdns_watch_update(AvahiWatch *w, AvahiWatchEvent event) { AVAHI_DEBUG("Update handle %p FD %d Event %d", w, w->fd, event); - virEventUpdateHandleImpl(w->fd, event); + virEventUpdateHandleImpl(w->watch, event); } static AvahiWatchEvent libvirtd_mdns_watch_get_events(AvahiWatch *w) @@ -275,7 +277,7 @@ static void libvirtd_mdns_watch_free(Ava static void libvirtd_mdns_watch_free(AvahiWatch *w) { AVAHI_DEBUG("Free handle %p %d", w, w->fd); - virEventRemoveHandleImpl(w->fd); + virEventRemoveHandleImpl(w->watch); VIR_FREE(w); } diff --git a/qemud/qemud.c b/qemud/qemud.c --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -142,8 +142,8 @@ static void sig_handler(int sig, siginfo errno = origerrno; } -static void qemudDispatchClientEvent(int fd, int events, void *opaque); -static void qemudDispatchServerEvent(int fd, int events, void *opaque); +static void qemudDispatchClientEvent(int watch, int fd, int events, void *opaque); +static void qemudDispatchServerEvent(int watch, int fd, int events, void *opaque); static int qemudRegisterClientEvent(struct qemud_server *server, struct qemud_client *client, int removeFirst); @@ -245,7 +245,8 @@ remoteInitializeGnuTLS (void) } static void -qemudDispatchSignalEvent(int fd ATTRIBUTE_UNUSED, +qemudDispatchSignalEvent(int watch ATTRIBUTE_UNUSED, + int fd ATTRIBUTE_UNUSED, int events ATTRIBUTE_UNUSED, void *opaque) { struct qemud_server *server = (struct qemud_server *)opaque; @@ -534,12 +535,12 @@ static int qemudListenUnix(struct qemud_ goto cleanup; } - if (virEventAddHandleImpl(sock->fd, - VIR_EVENT_HANDLE_READABLE | - VIR_EVENT_HANDLE_ERROR | - VIR_EVENT_HANDLE_HANGUP, - qemudDispatchServerEvent, - server) < 0) { + if ((sock->watch = virEventAddHandleImpl(sock->fd, + VIR_EVENT_HANDLE_READABLE | + VIR_EVENT_HANDLE_ERROR | + VIR_EVENT_HANDLE_HANGUP, + qemudDispatchServerEvent, + server)) < 0) { qemudLog(QEMUD_ERR, "%s", _("Failed to add server event callback")); goto cleanup; @@ -666,12 +667,12 @@ remoteListenTCP (struct qemud_server *se goto cleanup; } - if (virEventAddHandleImpl(sock->fd, - VIR_EVENT_HANDLE_READABLE | - VIR_EVENT_HANDLE_ERROR | - VIR_EVENT_HANDLE_HANGUP, - qemudDispatchServerEvent, - server) < 0) { + if ((sock->watch = virEventAddHandleImpl(sock->fd, + VIR_EVENT_HANDLE_READABLE | + VIR_EVENT_HANDLE_ERROR | + VIR_EVENT_HANDLE_HANGUP, + qemudDispatchServerEvent, + server)) < 0) { qemudLog(QEMUD_ERR, "%s", _("Failed to add server event callback")); goto cleanup; } @@ -1232,7 +1233,7 @@ static void qemudDispatchClientFailure(s tmp = tmp->next; } - virEventRemoveHandleImpl(client->fd); + virEventRemoveHandleImpl(client->watch); /* Deregister event delivery callback */ if(client->conn) { @@ -1596,18 +1597,21 @@ qemudDispatchClientWrite(struct qemud_se static void -qemudDispatchClientEvent(int fd, int events, void *opaque) { +qemudDispatchClientEvent(int watch, int fd, int events, void *opaque) { struct qemud_server *server = (struct qemud_server *)opaque; struct qemud_client *client = server->clients; while (client) { - if (client->fd == fd) + if (client->watch == watch) break; client = client->next; } if (!client) + return; + + if (client->fd != fd) return; if (events == VIR_EVENT_HANDLE_WRITABLE) @@ -1644,32 +1648,35 @@ static int qemudRegisterClientEvent(stru } if (removeFirst) - if (virEventRemoveHandleImpl(client->fd) < 0) + if (virEventRemoveHandleImpl(client->watch) < 0) return -1; - if (virEventAddHandleImpl(client->fd, - mode | VIR_EVENT_HANDLE_ERROR | - VIR_EVENT_HANDLE_HANGUP, - qemudDispatchClientEvent, - server) < 0) + if ((client->watch = virEventAddHandleImpl(client->fd, + mode | VIR_EVENT_HANDLE_ERROR | + VIR_EVENT_HANDLE_HANGUP, + qemudDispatchClientEvent, + server)) < 0) return -1; return 0; } static void -qemudDispatchServerEvent(int fd, int events, void *opaque) { +qemudDispatchServerEvent(int watch, int fd, int events, void *opaque) { struct qemud_server *server = (struct qemud_server *)opaque; struct qemud_socket *sock = server->sockets; while (sock) { - if (sock->fd == fd) + if (sock->watch == watch) break; sock = sock->next; } if (!sock) + return; + + if (sock->fd != fd) return; if (events) diff --git a/qemud/qemud.h b/qemud/qemud.h --- a/qemud/qemud.h +++ b/qemud/qemud.h @@ -96,6 +96,7 @@ struct qemud_client { int magic; int fd; + int watch; int readonly; enum qemud_mode mode; @@ -141,6 +142,7 @@ struct qemud_client { struct qemud_socket { int fd; + int watch; int readonly; int type; /* qemud_sock_type */ int auth; diff --git a/src/domain_conf.h b/src/domain_conf.h --- a/src/domain_conf.h +++ b/src/domain_conf.h @@ -455,8 +455,11 @@ struct _virDomainObj { struct _virDomainObj { int stdin_fd; int stdout_fd; + int stdout_watch; int stderr_fd; + int stderr_watch; int monitor; + int monitorWatch; int logfile; int pid; int state; diff --git a/src/event.c b/src/event.c --- a/src/event.c +++ b/src/event.c @@ -42,15 +42,15 @@ int virEventAddHandle(int fd, int events return addHandleImpl(fd, events, cb, opaque); } -void virEventUpdateHandle(int fd, int events) { - updateHandleImpl(fd, events); +void virEventUpdateHandle(int watch, int events) { + updateHandleImpl(watch, events); } -int virEventRemoveHandle(int fd) { +int virEventRemoveHandle(int watch) { if (!removeHandleImpl) return -1; - return removeHandleImpl(fd); + return removeHandleImpl(watch); } int virEventAddTimeout(int timeout, virEventTimeoutCallback cb, void *opaque) { diff --git a/src/event.h b/src/event.h --- a/src/event.h +++ b/src/event.h @@ -40,21 +40,21 @@ int virEventAddHandle(int fd, int events /** * virEventUpdateHandle: change event set for a monitored file handle * - * @fd: file handle to monitor for events + * @watch: watch whose file handle to update * @events: bitset of events to watch from virEventHandleType constants * * Will not fail if fd exists */ -void virEventUpdateHandle(int fd, int events); +void virEventUpdateHandle(int watch, int events); /** * virEventRemoveHandle: unregister a callback from a file handle * - * @fd: file handle to stop monitoring for events + * @watch: watch whose file handle to remove * * returns -1 if the file handle was not registered, 0 upon success */ -int virEventRemoveHandle(int fd); +int virEventRemoveHandle(int watch); /** * virEventAddTimeout: register a callback for a timer event diff --git a/src/lxc_driver.c b/src/lxc_driver.c --- a/src/lxc_driver.c +++ b/src/lxc_driver.c @@ -387,7 +387,7 @@ static int lxcVMCleanup(virConnectPtr co DEBUG("container exited with rc: %d", rc); } - virEventRemoveHandle(vm->monitor); + virEventRemoveHandle(vm->monitorWatch); close(vm->monitor); virFileDeletePid(driver->stateDir, vm->def->name); @@ -582,7 +582,8 @@ static int lxcVmTerminate(virConnectPtr return lxcVMCleanup(conn, driver, vm); } -static void lxcMonitorEvent(int fd, +static void lxcMonitorEvent(int watch, + int fd, int events ATTRIBUTE_UNUSED, void *data) { @@ -591,18 +592,23 @@ static void lxcMonitorEvent(int fd, unsigned int i; for (i = 0 ; i < driver->domains.count ; i++) { - if (driver->domains.objs[i]->monitor == fd) { + if (driver->domains.objs[i]->monitorWatch == watch) { vm = driver->domains.objs[i]; break; } } if (!vm) { - virEventRemoveHandle(fd); + virEventRemoveHandle(watch); + return; + } + + if (vm->monitor != fd) { + virEventRemoveHandle(watch); return; } if (lxcVmTerminate(NULL, driver, vm, SIGINT) < 0) - virEventRemoveHandle(fd); + virEventRemoveHandle(watch); } @@ -810,10 +816,11 @@ static int lxcVmStart(virConnectPtr conn vm->def->id = vm->pid; vm->state = VIR_DOMAIN_RUNNING; - if (virEventAddHandle(vm->monitor, - VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, - lxcMonitorEvent, - driver) < 0) { + if ((vm->monitorWatch = virEventAddHandle( + vm->monitor, + VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, + lxcMonitorEvent, + driver)) < 0) { lxcVmTerminate(conn, driver, vm, 0); goto cleanup; } diff --git a/src/qemu_driver.c b/src/qemu_driver.c --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -110,7 +110,8 @@ static void qemudDomainEventDispatch (st int event, int detail); -static void qemudDispatchVMEvent(int fd, +static void qemudDispatchVMEvent(int watch, + int fd, int events, void *opaque); @@ -946,18 +947,18 @@ static int qemudStartVMDaemon(virConnect } if (ret == 0) { - if ((virEventAddHandle(vm->stdout_fd, - VIR_EVENT_HANDLE_READABLE | - VIR_EVENT_HANDLE_ERROR | - VIR_EVENT_HANDLE_HANGUP, - qemudDispatchVMEvent, - driver) < 0) || - (virEventAddHandle(vm->stderr_fd, - VIR_EVENT_HANDLE_READABLE | - VIR_EVENT_HANDLE_ERROR | - VIR_EVENT_HANDLE_HANGUP, - qemudDispatchVMEvent, - driver) < 0) || + if (((vm->stdout_watch = virEventAddHandle(vm->stdout_fd, + VIR_EVENT_HANDLE_READABLE | + VIR_EVENT_HANDLE_ERROR | + VIR_EVENT_HANDLE_HANGUP, + qemudDispatchVMEvent, + driver)) < 0) || + ((vm->stderr_watch = virEventAddHandle(vm->stderr_fd, + VIR_EVENT_HANDLE_READABLE | + VIR_EVENT_HANDLE_ERROR | + VIR_EVENT_HANDLE_HANGUP, + qemudDispatchVMEvent, + driver)) < 0) || (qemudWaitForMonitor(conn, driver, vm) < 0) || (qemudDetectVcpuPIDs(conn, driver, vm) < 0) || (qemudInitCpus(conn, driver, vm, migrateFrom) < 0)) { @@ -1008,8 +1009,8 @@ static void qemudShutdownVMDaemon(virCon qemudVMData(driver, vm, vm->stdout_fd); qemudVMData(driver, vm, vm->stderr_fd); - virEventRemoveHandle(vm->stdout_fd); - virEventRemoveHandle(vm->stderr_fd); + virEventRemoveHandle(vm->stdout_watch); + virEventRemoveHandle(vm->stderr_watch); if (close(vm->logfile) < 0) qemudLog(QEMUD_WARN, _("Unable to close logfile %d: %s\n"), @@ -1072,15 +1073,15 @@ static int qemudDispatchVMFailure(struct static void -qemudDispatchVMEvent(int fd, int events, void *opaque) { +qemudDispatchVMEvent(int watch, int fd, int events, void *opaque) { struct qemud_driver *driver = (struct qemud_driver *)opaque; virDomainObjPtr vm = NULL; unsigned int i; for (i = 0 ; i < driver->domains.count ; i++) { if (virDomainIsActive(driver->domains.objs[i]) && - (driver->domains.objs[i]->stdout_fd == fd || - driver->domains.objs[i]->stderr_fd == fd)) { + (driver->domains.objs[i]->stdout_watch == watch || + driver->domains.objs[i]->stderr_watch == watch)) { vm = driver->domains.objs[i]; break; } @@ -1088,6 +1089,12 @@ qemudDispatchVMEvent(int fd, int events, if (!vm) return; + + if (vm->stdout_fd != fd && + vm->stderr_fd != fd) { + qemudDispatchVMFailure(driver, vm, fd); + return; + } if (events == VIR_EVENT_HANDLE_READABLE) qemudDispatchVMLog(driver, vm, fd); diff --git a/src/remote_internal.c b/src/remote_internal.c --- a/src/remote_internal.c +++ b/src/remote_internal.c @@ -95,6 +95,7 @@ struct private_data { struct private_data { int magic; /* Should be MAGIC or DEAD. */ int sock; /* Socket. */ + int watch; /* File handle watch */ pid_t pid; /* PID of tunnel process */ int uses_tls; /* TLS enabled on socket? */ gnutls_session_t session; /* GnuTLS session (if uses_tls != 0). */ @@ -175,7 +176,7 @@ static void make_nonnull_network (remote static void make_nonnull_network (remote_nonnull_network *net_dst, virNetworkPtr net_src); static void make_nonnull_storage_pool (remote_nonnull_storage_pool *pool_dst, virStoragePoolPtr vol_src); static void make_nonnull_storage_vol (remote_nonnull_storage_vol *vol_dst, virStorageVolPtr vol_src); -void remoteDomainEventFired(int fd, int event, void *data); +void remoteDomainEventFired(int watch, int fd, int event, void *data); static void remoteDomainProcessEvent(virConnectPtr conn, XDR *xdr); static void remoteDomainQueueEvent(virConnectPtr conn, XDR *xdr); void remoteDomainEventQueueFlush(int timer, void *opaque); @@ -756,12 +757,12 @@ doRemoteOpen (virConnectPtr conn, DEBUG0("Adding Handler for remote events"); /* Set up a callback to listen on the socket data */ - if (virEventAddHandle(priv->sock, - VIR_EVENT_HANDLE_READABLE | - VIR_EVENT_HANDLE_ERROR | - VIR_EVENT_HANDLE_HANGUP, - remoteDomainEventFired, - conn) < 0) { + if ((priv->watch = virEventAddHandle(priv->sock, + VIR_EVENT_HANDLE_READABLE | + VIR_EVENT_HANDLE_ERROR | + VIR_EVENT_HANDLE_HANGUP, + remoteDomainEventFired, + conn)) < 0) { DEBUG0("virEventAddHandle failed: No addHandleImpl defined." " continuing without events."); } else { @@ -5265,7 +5266,8 @@ remoteDomainQueueEvent(virConnectPtr con * for event data */ void -remoteDomainEventFired(int fd ATTRIBUTE_UNUSED, +remoteDomainEventFired(int watch, + int fd, int event, void *opaque) { @@ -5278,13 +5280,18 @@ remoteDomainEventFired(int fd ATTRIBUTE_ virConnectPtr conn = opaque; struct private_data *priv = conn->privateData; - DEBUG("%s : Event fired %d %X", __FUNCTION__, event, event); + DEBUG("Event fired %d %d %d %X", watch, fd, event, event); if (event & (VIR_EVENT_HANDLE_HANGUP | VIR_EVENT_HANDLE_ERROR)) { DEBUG("%s : VIR_EVENT_HANDLE_HANGUP or " "VIR_EVENT_HANDLE_ERROR encountered", __FUNCTION__); - virEventRemoveHandle(fd); + virEventRemoveHandle(watch); return; + } + + if (fd != priv->sock) { + virEventRemoveHandle(watch); + return; } /* Read and deserialise length word. */ -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 3

[libvirt] PATCH: Pass a callback for freeing opaque data when registering handle/timer events
by Daniel P. Berrange 19 Nov '08

19 Nov '08

When registering for a file descriptor event, or timer events, the event callback has an associated 'void *opaque' data blob. When removing a registered event, the removal may be done asynchronously to allow safe removal from within a callback. This means that it is not safe for the application to assume they can free the 'void *opaque' data immediately after calling virEventRemoveHandle/Timer. So, we extend the AddHandle/Timer method to allow a 2nd callback to be provided. This callback is used to free the 'void *opaque' data at the appropriate (safe) point in time. examples/domain-events/events-c/event-test.c | 24 ++++++++++-- include/libvirt/libvirt.h | 52 ++++++++++++++++++++++++--- include/libvirt/libvirt.h.in | 52 ++++++++++++++++++++++++--- python/libvir.c | 25 +++++++++--- python/libvirt_wrap.h | 2 + python/types.c | 32 ++++++++++++++++ qemud/event.c | 19 ++++++++- qemud/event.h | 9 +++- qemud/mdns.c | 22 +++++++++-- qemud/qemud.c | 9 ++++ src/event.c | 14 +++++-- src/event.h | 9 +++- src/lxc_driver.c | 1 src/qemu_driver.c | 2 + src/remote_internal.c | 2 + 15 files changed, 240 insertions(+), 34 deletions(-) Daniel diff --git a/examples/domain-events/events-c/event-test.c b/examples/domain-events/events-c/event-test.c --- a/examples/domain-events/events-c/event-test.c +++ b/examples/domain-events/events-c/event-test.c @@ -22,6 +22,7 @@ int h_fd = 0; int h_fd = 0; virEventHandleType h_event = 0; virEventHandleCallback h_cb = NULL; +virEventHandleFreeFunc h_ff = NULL; void *h_opaque = NULL; /* timeout globals */ @@ -29,6 +30,7 @@ int t_active = 0; int t_active = 0; int t_timeout = -1; virEventTimeoutCallback t_cb = NULL; +virEventTimeoutFreeFunc t_ff = NULL; void *t_opaque = NULL; @@ -39,11 +41,15 @@ int myDomainEventCallback2 (virConnectPt int myDomainEventCallback2 (virConnectPtr conn, virDomainPtr dom, int event, int detail, void *opaque); int myEventAddHandleFunc (int fd, int event, - virEventHandleCallback cb, void *opaque); + virEventHandleCallback cb, + virEventHandleFreeFunc ff, + void *opaque); void myEventUpdateHandleFunc(int watch, int event); int myEventRemoveHandleFunc(int watch); -int myEventAddTimeoutFunc(int timeout, virEventTimeoutCallback cb, +int myEventAddTimeoutFunc(int timeout, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, void *opaque); void myEventUpdateTimeoutFunc(int timer, int timout); int myEventRemoveTimeoutFunc(int timer); @@ -199,12 +205,15 @@ virEventHandleType myPollEventToEventHan } int myEventAddHandleFunc(int fd, int event, - virEventHandleCallback cb, void *opaque) + virEventHandleCallback cb, + virEventHandleFreeFunc ff, + void *opaque) { DEBUG("Add handle %d %d %p %p", fd, event, cb, opaque); h_fd = fd; h_event = myEventHandleTypeToPollEvent(event); h_cb = cb; + h_ff = ff; h_opaque = opaque; return 0; } @@ -220,16 +229,21 @@ int myEventRemoveHandleFunc(int fd) { DEBUG("Removed Handle %d", fd); h_fd = 0; + if (h_ff) + (h_ff)(h_opaque); return 0; } -int myEventAddTimeoutFunc(int timeout, virEventTimeoutCallback cb, +int myEventAddTimeoutFunc(int timeout, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, void *opaque) { DEBUG("Adding Timeout %d %p %p", timeout, cb, opaque); t_active = 1; t_timeout = timeout; t_cb = cb; + t_ff = ff; t_opaque = opaque; return 0; } @@ -244,6 +258,8 @@ int myEventRemoveTimeoutFunc(int timer) { DEBUG("Timeout removed %d", timer); t_active = 0; + if (t_ff) + (t_ff)(t_opaque); return 0; } diff --git a/include/libvirt/libvirt.h b/include/libvirt/libvirt.h --- a/include/libvirt/libvirt.h +++ b/include/libvirt/libvirt.h @@ -1132,21 +1132,39 @@ typedef void (*virEventHandleCallback)(i typedef void (*virEventHandleCallback)(int watch, int fd, int events, void *opaque); /** + * virEventHandleFreeFunc: + * + * @opaque: user data to be free'd + * + * Callback invoked when memory associated with a file handle + * watch is being freed. Will be passed a pointer to the application's + * opaque data blob. + */ +typedef void (*virEventHandleFreeFunc)(void *opaque); + +/** * virEventAddHandleFunc: * @fd: file descriptor to listen on * @event: bitset of events on which to fire the callback - * @cb: the callback to be called + * @cb: the callback to be called when an event occurrs + * @ff: the callback invoked to free opaque data blob * @opaque: user data to pass to the callback * * Part of the EventImpl, this callback Adds a file handle callback to * listen for specific events. The same file handle can be registered * multiple times provided the requested event sets are non-overlapping * + * If the opaque user data requires free'ing when the handle + * is unregistered, then a 2nd callback can be supplied for + * this purpose. + * * Returns a handle watch number to be used for updating * and unregistering for events */ typedef int (*virEventAddHandleFunc)(int fd, int event, - virEventHandleCallback cb, void *opaque); + virEventHandleCallback cb, + virEventHandleFreeFunc ff, + void *opaque); /** * virEventUpdateHandleFunc: @@ -1163,7 +1181,11 @@ typedef void (*virEventUpdateHandleFunc) * @watch: file descriptor watch to stop listening on * * Part of the EventImpl, this user-provided callback is notified when - * an fd is no longer being listened on + * an fd is no longer being listened on. + * + * If a virEventHandleFreeFunc was supplied when the handle was + * registered, it will be invoked some time during, or after this + * function call, when it is safe to release the user data. */ typedef int (*virEventRemoveHandleFunc)(int watch); @@ -1178,17 +1200,35 @@ typedef void (*virEventTimeoutCallback)( typedef void (*virEventTimeoutCallback)(int timer, void *opaque); /** + * virEventTimeoutFreeFunc: + * + * @opaque: user data to be free'd + * + * Callback invoked when memory associated with a timer + * is being freed. Will be passed a pointer to the application's + * opaque data blob. + */ +typedef void (*virEventTimeoutFreeFunc)(void *opaque); + +/** * virEventAddTimeoutFunc: * @timeout: The timeout to monitor * @cb: the callback to call when timeout has expired + * @ff: the callback invoked to free opaque data blob * @opaque: user data to pass to the callback * * Part of the EventImpl, this user-defined callback handles adding an * event timeout. * + * If the opaque user data requires free'ing when the handle + * is unregistered, then a 2nd callback can be supplied for + * this purpose. + * * Returns a timer value */ -typedef int (*virEventAddTimeoutFunc)(int timeout, virEventTimeoutCallback cb, +typedef int (*virEventAddTimeoutFunc)(int timeout, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, void *opaque); /** @@ -1207,6 +1247,10 @@ typedef void (*virEventUpdateTimeoutFunc * * Part of the EventImpl, this user-defined callback removes a timer * + * If a virEventTimeoutFreeFunc was supplied when the handle was + * registered, it will be invoked some time during, or after this + * function call, when it is safe to release the user data. + * * Returns 0 on success, -1 on failure */ typedef int (*virEventRemoveTimeoutFunc)(int timer); diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -1132,21 +1132,39 @@ typedef void (*virEventHandleCallback)(i typedef void (*virEventHandleCallback)(int watch, int fd, int events, void *opaque); /** + * virEventHandleFreeFunc: + * + * @opaque: user data to be free'd + * + * Callback invoked when memory associated with a file handle + * watch is being freed. Will be passed a pointer to the application's + * opaque data blob. + */ +typedef void (*virEventHandleFreeFunc)(void *opaque); + +/** * virEventAddHandleFunc: * @fd: file descriptor to listen on * @event: bitset of events on which to fire the callback - * @cb: the callback to be called + * @cb: the callback to be called when an event occurrs + * @ff: the callback invoked to free opaque data blob * @opaque: user data to pass to the callback * * Part of the EventImpl, this callback Adds a file handle callback to * listen for specific events. The same file handle can be registered * multiple times provided the requested event sets are non-overlapping * + * If the opaque user data requires free'ing when the handle + * is unregistered, then a 2nd callback can be supplied for + * this purpose. + * * Returns a handle watch number to be used for updating * and unregistering for events */ typedef int (*virEventAddHandleFunc)(int fd, int event, - virEventHandleCallback cb, void *opaque); + virEventHandleCallback cb, + virEventHandleFreeFunc ff, + void *opaque); /** * virEventUpdateHandleFunc: @@ -1163,7 +1181,11 @@ typedef void (*virEventUpdateHandleFunc) * @watch: file descriptor watch to stop listening on * * Part of the EventImpl, this user-provided callback is notified when - * an fd is no longer being listened on + * an fd is no longer being listened on. + * + * If a virEventHandleFreeFunc was supplied when the handle was + * registered, it will be invoked some time during, or after this + * function call, when it is safe to release the user data. */ typedef int (*virEventRemoveHandleFunc)(int watch); @@ -1178,17 +1200,35 @@ typedef void (*virEventTimeoutCallback)( typedef void (*virEventTimeoutCallback)(int timer, void *opaque); /** + * virEventTimeoutFreeFunc: + * + * @opaque: user data to be free'd + * + * Callback invoked when memory associated with a timer + * is being freed. Will be passed a pointer to the application's + * opaque data blob. + */ +typedef void (*virEventTimeoutFreeFunc)(void *opaque); + +/** * virEventAddTimeoutFunc: * @timeout: The timeout to monitor * @cb: the callback to call when timeout has expired + * @ff: the callback invoked to free opaque data blob * @opaque: user data to pass to the callback * * Part of the EventImpl, this user-defined callback handles adding an * event timeout. * + * If the opaque user data requires free'ing when the handle + * is unregistered, then a 2nd callback can be supplied for + * this purpose. + * * Returns a timer value */ -typedef int (*virEventAddTimeoutFunc)(int timeout, virEventTimeoutCallback cb, +typedef int (*virEventAddTimeoutFunc)(int timeout, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, void *opaque); /** @@ -1207,6 +1247,10 @@ typedef void (*virEventUpdateTimeoutFunc * * Part of the EventImpl, this user-defined callback removes a timer * + * If a virEventTimeoutFreeFunc was supplied when the handle was + * registered, it will be invoked some time during, or after this + * function call, when it is safe to release the user data. + * * Returns 0 on success, -1 on failure */ typedef int (*virEventRemoveTimeoutFunc)(int timer); diff --git a/python/libvir.c b/python/libvir.c --- a/python/libvir.c +++ b/python/libvir.c @@ -1704,12 +1704,16 @@ static PyObject *removeTimeoutObj = NULL static int -libvirt_virEventAddHandleFunc (int fd ATTRIBUTE_UNUSED, int event ATTRIBUTE_UNUSED, - virEventHandleCallback cb, void *opaque) +libvirt_virEventAddHandleFunc (int fd, + int event, + virEventHandleCallback cb, + virEventHandleFreeFunc ff, + void *opaque) { PyObject *result = NULL; PyObject *python_cb; PyObject *cb_obj; + PyObject *ff_obj; PyObject *opaque_obj; PyObject *cb_args; PyObject *pyobj_args; @@ -1730,11 +1734,13 @@ libvirt_virEventAddHandleFunc (int fd A /* create tuple for cb */ cb_obj = libvirt_virEventHandleCallbackWrap(cb); + ff_obj = libvirt_virEventHandleFreeFuncWrap(ff); opaque_obj = libvirt_virVoidPtrWrap(opaque); - cb_args = PyTuple_New(2); + cb_args = PyTuple_New(3); PyTuple_SetItem(cb_args, 0, cb_obj); - PyTuple_SetItem(cb_args, 1, opaque_obj); + PyTuple_SetItem(cb_args, 1, ff_obj); + PyTuple_SetItem(cb_args, 2, opaque_obj); pyobj_args = PyTuple_New(4); PyTuple_SetItem(pyobj_args, 0, libvirt_intWrap(fd)); @@ -1799,7 +1805,9 @@ libvirt_virEventRemoveHandleFunc(int fd) } static int -libvirt_virEventAddTimeoutFunc(int timeout, virEventTimeoutCallback cb, +libvirt_virEventAddTimeoutFunc(int timeout, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, void *opaque) { PyObject *result = NULL; @@ -1807,6 +1815,7 @@ libvirt_virEventAddTimeoutFunc(int timeo PyObject *python_cb; PyObject *cb_obj; + PyObject *ff_obj; PyObject *opaque_obj; PyObject *cb_args; PyObject *pyobj_args; @@ -1827,11 +1836,13 @@ libvirt_virEventAddTimeoutFunc(int timeo /* create tuple for cb */ cb_obj = libvirt_virEventTimeoutCallbackWrap(cb); + ff_obj = libvirt_virEventTimeoutFreeFuncWrap(ff); opaque_obj = libvirt_virVoidPtrWrap(opaque); - cb_args = PyTuple_New(2); + cb_args = PyTuple_New(3); PyTuple_SetItem(cb_args, 0, cb_obj); - PyTuple_SetItem(cb_args, 1, opaque_obj); + PyTuple_SetItem(cb_args, 1, ff_obj); + PyTuple_SetItem(cb_args, 2, opaque_obj); pyobj_args = PyTuple_New(3); diff --git a/python/libvirt_wrap.h b/python/libvirt_wrap.h --- a/python/libvirt_wrap.h +++ b/python/libvirt_wrap.h @@ -103,6 +103,8 @@ PyObject * libvirt_virStorageVolPtrWrap( PyObject * libvirt_virStorageVolPtrWrap(virStorageVolPtr node); PyObject * libvirt_virEventHandleCallbackWrap(virEventHandleCallback node); PyObject * libvirt_virEventTimeoutCallbackWrap(virEventTimeoutCallback node); +PyObject * libvirt_virEventHandleFreeFuncWrap(virEventHandleFreeFunc node); +PyObject * libvirt_virEventTimeoutFreeFuncWrap(virEventTimeoutFreeFunc node); PyObject * libvirt_virVoidPtrWrap(void* node); /* Provide simple macro statement wrappers (adapted from GLib, in turn from Perl): diff --git a/python/types.c b/python/types.c --- a/python/types.c +++ b/python/types.c @@ -196,6 +196,38 @@ libvirt_virEventTimeoutCallbackWrap(virE } PyObject * +libvirt_virEventHandleFreeFuncWrap(virEventHandleFreeFunc node) +{ + PyObject *ret; + + if (node == NULL) { + Py_INCREF(Py_None); + printf("%s: WARNING - Wrapping None\n", __FUNCTION__); + return (Py_None); + } + ret = + PyCObject_FromVoidPtrAndDesc((void *) node, (char *) "virEventHandleFreeFunc", + NULL); + return (ret); +} + +PyObject * +libvirt_virEventTimeoutFreeFuncWrap(virEventTimeoutFreeFunc node) +{ + PyObject *ret; + + if (node == NULL) { + printf("%s: WARNING - Wrapping None\n", __FUNCTION__); + Py_INCREF(Py_None); + return (Py_None); + } + ret = + PyCObject_FromVoidPtrAndDesc((void *) node, (char *) "virEventTimeoutFreeFunc", + NULL); + return (ret); +} + +PyObject * libvirt_virVoidPtrWrap(void* node) { PyObject *ret; diff --git a/qemud/event.c b/qemud/event.c --- a/qemud/event.c +++ b/qemud/event.c @@ -41,6 +41,7 @@ struct virEventHandle { int fd; int events; virEventHandleCallback cb; + virEventHandleFreeFunc ff; void *opaque; int deleted; }; @@ -51,6 +52,7 @@ struct virEventTimeout { int frequency; unsigned long long expiresAt; virEventTimeoutCallback cb; + virEventTimeoutFreeFunc ff; void *opaque; int deleted; }; @@ -83,7 +85,9 @@ static int nextTimer = 0; * NB, it *must* be safe to call this from within a callback * For this reason we only ever append to existing list. */ -int virEventAddHandleImpl(int fd, int events, virEventHandleCallback cb, +int virEventAddHandleImpl(int fd, int events, + virEventHandleCallback cb, + virEventHandleFreeFunc ff, void *opaque) { EVENT_DEBUG("Add handle %d %d %p %p", fd, events, cb, opaque); if (eventLoop.handlesCount == eventLoop.handlesAlloc) { @@ -100,6 +104,7 @@ int virEventAddHandleImpl(int fd, int ev eventLoop.handles[eventLoop.handlesCount].events = virEventHandleTypeToPollEvent(events); eventLoop.handles[eventLoop.handlesCount].cb = cb; + eventLoop.handles[eventLoop.handlesCount].ff = ff; eventLoop.handles[eventLoop.handlesCount].opaque = opaque; eventLoop.handles[eventLoop.handlesCount].deleted = 0; @@ -147,7 +152,10 @@ int virEventRemoveHandleImpl(int watch) * NB, it *must* be safe to call this from within a callback * For this reason we only ever append to existing list. */ -int virEventAddTimeoutImpl(int frequency, virEventTimeoutCallback cb, void *opaque) { +int virEventAddTimeoutImpl(int frequency, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, + void *opaque) { struct timeval now; EVENT_DEBUG("Adding timer %d with %d ms freq", nextTimer, frequency); if (gettimeofday(&now, NULL) < 0) { @@ -166,6 +174,7 @@ int virEventAddTimeoutImpl(int frequency eventLoop.timeouts[eventLoop.timeoutsCount].timer = nextTimer++; eventLoop.timeouts[eventLoop.timeoutsCount].frequency = frequency; eventLoop.timeouts[eventLoop.timeoutsCount].cb = cb; + eventLoop.timeouts[eventLoop.timeoutsCount].ff = ff; eventLoop.timeouts[eventLoop.timeoutsCount].opaque = opaque; eventLoop.timeouts[eventLoop.timeoutsCount].deleted = 0; eventLoop.timeouts[eventLoop.timeoutsCount].expiresAt = @@ -393,6 +402,9 @@ static int virEventCleanupTimeouts(void) } EVENT_DEBUG("Purging timeout %d with id %d", i, eventLoop.timeouts[i].timer); + if (eventLoop.timeouts[i].ff) + (eventLoop.timeouts[i].ff)(eventLoop.timeouts[i].opaque); + if ((i+1) < eventLoop.timeoutsCount) { memmove(eventLoop.timeouts+i, eventLoop.timeouts+i+1, @@ -428,6 +440,9 @@ static int virEventCleanupHandles(void) i++; continue; } + + if (eventLoop.handles[i].ff) + (eventLoop.handles[i].ff)(eventLoop.handles[i].opaque); if ((i+1) < eventLoop.handlesCount) { memmove(eventLoop.handles+i, diff --git a/qemud/event.h b/qemud/event.h --- a/qemud/event.h +++ b/qemud/event.h @@ -36,7 +36,9 @@ * * returns -1 if the file handle cannot be registered, 0 upon success */ -int virEventAddHandleImpl(int fd, int events, virEventHandleCallback cb, +int virEventAddHandleImpl(int fd, int events, + virEventHandleCallback cb, + virEventHandleFreeFunc ff, void *opaque); /** @@ -71,7 +73,10 @@ int virEventRemoveHandleImpl(int watch); * returns -1 if the file handle cannot be registered, a positive * integer timer id upon success */ -int virEventAddTimeoutImpl(int frequency, virEventTimeoutCallback cb, void *opaque); +int virEventAddTimeoutImpl(int frequency, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, + void *opaque); /** * virEventUpdateTimeoutImpl: change frequency for a timer diff --git a/qemud/mdns.c b/qemud/mdns.c --- a/qemud/mdns.c +++ b/qemud/mdns.c @@ -238,6 +238,12 @@ static void libvirtd_mdns_watch_dispatch w->callback(w, fd, fd_events, w->userdata); } +static void libvirtd_mdns_watch_dofree(void *w) +{ + VIR_FREE(w); +} + + static AvahiWatch *libvirtd_mdns_watch_new(const AvahiPoll *api ATTRIBUTE_UNUSED, int fd, AvahiWatchEvent event, AvahiWatchCallback cb, void *userdata) { @@ -254,7 +260,9 @@ static AvahiWatch *libvirtd_mdns_watch_n AVAHI_DEBUG("New handle %p FD %d Event %d", w, w->fd, event); hEvents = virPollEventToEventHandleType(event); if ((w->watch = virEventAddHandleImpl(fd, hEvents, - libvirtd_mdns_watch_dispatch, w)) < 0) { + libvirtd_mdns_watch_dispatch, + libvirtd_mdns_watch_dofree, + w)) < 0) { VIR_FREE(w); return NULL; } @@ -278,7 +286,6 @@ static void libvirtd_mdns_watch_free(Ava { AVAHI_DEBUG("Free handle %p %d", w, w->fd); virEventRemoveHandleImpl(w->watch); - VIR_FREE(w); } static void libvirtd_mdns_timeout_dispatch(int timer ATTRIBUTE_UNUSED, void *opaque) @@ -287,6 +294,11 @@ static void libvirtd_mdns_timeout_dispat AVAHI_DEBUG("Dispatch timeout %p %d", t, timer); virEventUpdateTimeoutImpl(t->timer, -1); t->callback(t, t->userdata); +} + +static void libvirtd_mdns_timeout_dofree(void *t) +{ + VIR_FREE(t); } static AvahiTimeout *libvirtd_mdns_timeout_new(const AvahiPoll *api ATTRIBUTE_UNUSED, @@ -319,7 +331,10 @@ static AvahiTimeout *libvirtd_mdns_timeo timeout = -1; } - t->timer = virEventAddTimeoutImpl(timeout, libvirtd_mdns_timeout_dispatch, t); + t->timer = virEventAddTimeoutImpl(timeout, + libvirtd_mdns_timeout_dispatch, + libvirtd_mdns_timeout_dofree, + t); t->callback = cb; t->userdata = userdata; @@ -358,7 +373,6 @@ static void libvirtd_mdns_timeout_free(A { AVAHI_DEBUG("Free timeout %p", t); virEventRemoveTimeoutImpl(t->timer); - VIR_FREE(t); } diff --git a/qemud/qemud.c b/qemud/qemud.c --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -540,6 +540,7 @@ static int qemudListenUnix(struct qemud_ VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, qemudDispatchServerEvent, + NULL, server)) < 0) { qemudLog(QEMUD_ERR, "%s", _("Failed to add server event callback")); @@ -672,6 +673,7 @@ remoteListenTCP (struct qemud_server *se VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, qemudDispatchServerEvent, + NULL, server)) < 0) { qemudLog(QEMUD_ERR, "%s", _("Failed to add server event callback")); goto cleanup; @@ -1655,6 +1657,7 @@ static int qemudRegisterClientEvent(stru mode | VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, qemudDispatchClientEvent, + NULL, server)) < 0) return -1; @@ -1721,7 +1724,10 @@ static int qemudRunLoop(struct qemud_ser * shutdown after timeout seconds */ if (timeout > 0 && !virStateActive() && !server->clients) { - timerid = virEventAddTimeoutImpl(timeout*1000, qemudInactiveTimer, server); + timerid = virEventAddTimeoutImpl(timeout*1000, + qemudInactiveTimer, + NULL, + server); qemudDebug("Scheduling shutdown timer %d", timerid); } @@ -2270,6 +2276,7 @@ int main(int argc, char **argv) { if (virEventAddHandleImpl(sigpipe[0], VIR_EVENT_HANDLE_READABLE, qemudDispatchSignalEvent, + NULL, server) < 0) { qemudLog(QEMUD_ERR, "%s", _("Failed to register callback for signal pipe")); diff --git a/src/event.c b/src/event.c --- a/src/event.c +++ b/src/event.c @@ -34,12 +34,15 @@ static virEventUpdateTimeoutFunc updateT static virEventUpdateTimeoutFunc updateTimeoutImpl = NULL; static virEventRemoveTimeoutFunc removeTimeoutImpl = NULL; -int virEventAddHandle(int fd, int events, virEventHandleCallback cb, +int virEventAddHandle(int fd, + int events, + virEventHandleCallback cb, + virEventHandleFreeFunc ff, void *opaque) { if (!addHandleImpl) return -1; - return addHandleImpl(fd, events, cb, opaque); + return addHandleImpl(fd, events, cb, ff, opaque); } void virEventUpdateHandle(int watch, int events) { @@ -53,11 +56,14 @@ int virEventRemoveHandle(int watch) { return removeHandleImpl(watch); } -int virEventAddTimeout(int timeout, virEventTimeoutCallback cb, void *opaque) { +int virEventAddTimeout(int timeout, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, + void *opaque) { if (!addTimeoutImpl) return -1; - return addTimeoutImpl(timeout, cb, opaque); + return addTimeoutImpl(timeout, cb, ff, opaque); } void virEventUpdateTimeout(int timer, int timeout) { diff --git a/src/event.h b/src/event.h --- a/src/event.h +++ b/src/event.h @@ -34,7 +34,9 @@ * * returns -1 if the file handle cannot be registered, 0 upon success */ -int virEventAddHandle(int fd, int events, virEventHandleCallback cb, +int virEventAddHandle(int fd, int events, + virEventHandleCallback cb, + virEventHandleFreeFunc ff, void *opaque); /** @@ -69,7 +71,10 @@ int virEventRemoveHandle(int watch); * returns -1 if the file handle cannot be registered, a positive * integer timer id upon success */ -int virEventAddTimeout(int frequency, virEventTimeoutCallback cb, void *opaque); +int virEventAddTimeout(int frequency, + virEventTimeoutCallback cb, + virEventTimeoutFreeFunc ff, + void *opaque); /** * virEventUpdateTimeoutImpl: change frequency for a timer diff --git a/src/lxc_driver.c b/src/lxc_driver.c --- a/src/lxc_driver.c +++ b/src/lxc_driver.c @@ -820,6 +820,7 @@ static int lxcVmStart(virConnectPtr conn vm->monitor, VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, lxcMonitorEvent, + NULL, driver)) < 0) { lxcVmTerminate(conn, driver, vm, 0); goto cleanup; diff --git a/src/qemu_driver.c b/src/qemu_driver.c --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -952,12 +952,14 @@ static int qemudStartVMDaemon(virConnect VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, qemudDispatchVMEvent, + NULL, driver)) < 0) || ((vm->stderr_watch = virEventAddHandle(vm->stderr_fd, VIR_EVENT_HANDLE_READABLE | VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, qemudDispatchVMEvent, + NULL, driver)) < 0) || (qemudWaitForMonitor(conn, driver, vm) < 0) || (qemudDetectVcpuPIDs(conn, driver, vm) < 0) || diff --git a/src/remote_internal.c b/src/remote_internal.c --- a/src/remote_internal.c +++ b/src/remote_internal.c @@ -762,6 +762,7 @@ doRemoteOpen (virConnectPtr conn, VIR_EVENT_HANDLE_ERROR | VIR_EVENT_HANDLE_HANGUP, remoteDomainEventFired, + NULL, conn)) < 0) { DEBUG0("virEventAddHandle failed: No addHandleImpl defined." " continuing without events."); @@ -770,6 +771,7 @@ doRemoteOpen (virConnectPtr conn, DEBUG0("Adding Timeout for remote event queue flushing"); if ( (priv->eventFlushTimer = virEventAddTimeout(-1, remoteDomainEventQueueFlush, + NULL, conn)) < 0) { DEBUG0("virEventAddTimeout failed: No addTimeoutImpl defined. " "continuing without events."); -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 2

[libvirt] PATCH: User mode linux driver
by Daniel P. Berrange 19 Nov '08

19 Nov '08

This patch is an update of http://www.redhat.com/archives/libvir-list/2008-October/msg00355.html providing a user mode linux driver. I've fixed a number of stupid bugs since the first posting, so its more reliable & less crash prone on startup. I also added a short driver doc page for the website. Even though this driver isn't finished (it still lacks networking), I'd like to get this info 0.5.0 release so it can at least be tried out by interested people. It shouldn't impact any users of existing drivers. configure.in | 8 docs/drvuml.html.in | 79 ++ include/libvirt/virterror.h | 1 qemud/Makefile.am | 4 qemud/qemud.c | 6 src/Makefile.am | 11 src/domain_conf.c | 47 - src/domain_conf.h | 1 src/driver.h | 3 src/qemu_conf.c | 3 src/uml_conf.c | 404 ++++++++++ src/uml_conf.h | 71 + src/uml_driver.c | 1671 ++++++++++++++++++++++++++++++++++++++++++++ src/uml_driver.h | 32 src/virterror.c | 4 15 files changed, 2321 insertions(+), 24 deletions(-) Daniel diff --git a/configure.in b/configure.in --- a/configure.in +++ b/configure.in @@ -149,6 +149,8 @@ AC_ARG_WITH([xen], [ --with-xen add XEN support (on)],[],[with_xen=yes]) AC_ARG_WITH([qemu], [ --with-qemu add QEMU/KVM support (on)],[],[with_qemu=yes]) +AC_ARG_WITH([uml], +[ --with-uml add UML support (on)],[],[with_uml=yes]) AC_ARG_WITH([openvz], [ --with-openvz add OpenVZ support (on)],[],[with_openvz=yes]) AC_ARG_WITH([lxc], @@ -252,6 +254,11 @@ if test "$with_qemu" = "yes" ; then AC_DEFINE_UNQUOTED([WITH_QEMU], 1, [whether QEMU driver is enabled]) fi AM_CONDITIONAL([WITH_QEMU], [test "$with_qemu" = "yes"]) + +if test "$with_uml" = "yes" ; then + AC_DEFINE_UNQUOTED([WITH_UML], 1, [whether UML driver is enabled]) +fi +AM_CONDITIONAL([WITH_UML], [test "$with_uml" = "yes"]) if test "$with_test" = "yes" ; then AC_DEFINE_UNQUOTED([WITH_TEST], 1, [whether Test driver is enabled]) @@ -1098,6 +1105,7 @@ AC_MSG_NOTICE([ Xen: $with_xen]) AC_MSG_NOTICE([ Xen: $with_xen]) AC_MSG_NOTICE([ Proxy: $with_xen_proxy]) AC_MSG_NOTICE([ QEMU: $with_qemu]) +AC_MSG_NOTICE([ UML: $with_uml]) AC_MSG_NOTICE([ OpenVZ: $with_openvz]) AC_MSG_NOTICE([ LXC: $with_lxc]) AC_MSG_NOTICE([ Test: $with_test]) diff --git a/docs/drvuml.html.in b/docs/drvuml.html.in new file mode 100644 --- /dev/null +++ b/docs/drvuml.html.in @@ -0,0 +1,79 @@ +<html> + <body> + <h1>User Mode Linux driver</h1> + + <p> + The UML driver for libvirt allows use and management of paravirtualized + guests built for User Mode Linux. UML requires no special support in + the host kernel, so can be used by any user of any linux system, provided + they have enough free RAM for their guest's needs, though there are + certain restrictions on network connectivity unless the adminstrator + has pre-created TAP devices. + </p> + + <h2>Connections to UML driver</h2> + + <p> + The libvirt UML driver follows the QEMU driver in providing two + types of connection. There is one privileged instance per host, + which runs as root. This is called the "system" instance, and allows + full use of all host resources. Then, there is a per-user unprivileged + "session", instance. This has more restricted capabilities, and may + require the host administrator to setup certain resources ahead of + time to allow full integration with the network. Example connection + URIs are + </p> + + <pre> + uml:///system (local access, system instance) + uml:///session (local access, session instance) + uml://example.com/system (remote access, TLS/x509) + uml+tcp://example.com/system (remote access, SASl/Kerberos) + uml+ssh://root@example.com/system (remote access, SSH tunnelled) + </pre> + + <h2>Example XML configuration</h2> + + <p> + User mode Linux driver only supports directly kernel boot at + this time. A future driver enhancement may allow a paravirt + bootloader in a similar style to Xen's pygrub. For now though, + the UML kernel must be stored on the host and referenced + explicitly in the "os" element. Since UML is a paravirtualized + technology, the kernel "type" is set to "uml" + </p> + + <p> + There is not yet support for networking in the driver, but + disks can be specified in the usual libvirt manner. The main + variation is the target device naming scheme "ubd0", and + bus type of "uml". + </p> + + <p> + Once booted the primary console is connected toa PTY, and + thus accessible with "virsh console" or equivalent tools + </p> + + <pre> +<domain type='uml'> + <name>demo</name> + <uuid>b4433fc2-a22e-ffb3-0a3d-9c173b395800</uuid> + <memory>500000</memory> + <currentMemory>500000</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='x86_64'>uml</type> + <kernel>/home/berrange/linux-uml-2.6.26-x86_64</kernel> + </os> + <devices> + <disk type='file' device='disk'> + <source file='/home/berrange/FedoraCore6-AMD64-root_fs'/> + <target dev='ubd0' bus='uml'/> + </disk> + <console type='pty'/> + </devices> +</domain> + </pre> + </body> +</html> diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h --- a/include/libvirt/virterror.h +++ b/include/libvirt/virterror.h @@ -58,6 +58,7 @@ typedef enum { VIR_FROM_STORAGE, /* Error from storage driver */ VIR_FROM_NETWORK, /* Error from network config */ VIR_FROM_DOMAIN, /* Error from domain config */ + VIR_FROM_UML, /* Error at the UML driver */ } virErrorDomain; diff --git a/qemud/Makefile.am b/qemud/Makefile.am --- a/qemud/Makefile.am +++ b/qemud/Makefile.am @@ -97,6 +97,10 @@ endif if WITH_LXC libvirtd_LDADD += ../src/libvirt_driver_lxc.la +endif + +if WITH_UML +libvirtd_LDADD += ../src/libvirt_driver_uml.la endif if WITH_STORAGE_DIR diff --git a/qemud/qemud.c b/qemud/qemud.c --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -66,6 +66,9 @@ #endif #ifdef WITH_LXC #include "lxc_driver.h" +#endif +#ifdef WITH_UML +#include "uml_driver.h" #endif #ifdef WITH_NETWORK #include "network_driver.h" @@ -749,6 +752,9 @@ static struct qemud_server *qemudInitial #endif #ifdef WITH_LXC lxcRegister(); +#endif +#ifdef WITH_UML + umlRegister(); #endif #ifdef WITH_NETWORK networkRegister(); diff --git a/src/Makefile.am b/src/Makefile.am --- a/src/Makefile.am +++ b/src/Makefile.am @@ -116,6 +116,10 @@ QEMU_DRIVER_SOURCES = \ QEMU_DRIVER_SOURCES = \ qemu_conf.c qemu_conf.h \ qemu_driver.c qemu_driver.h + +UML_DRIVER_SOURCES = \ + uml_conf.c uml_conf.h \ + uml_driver.c uml_driver.h NETWORK_DRIVER_SOURCES = \ network_driver.h network_driver.c @@ -210,6 +214,12 @@ libvirt_driver_lxc_la_SOURCES = $(LXC_DR libvirt_driver_lxc_la_SOURCES = $(LXC_DRIVER_SOURCES) endif +if WITH_UML +noinst_LTLIBRARIES += libvirt_driver_uml.la +# Stateful, so linked to daemon instead +#libvirt_la_LIBADD += libvirt_driver_uml.la +libvirt_driver_uml_la_SOURCES = $(UML_DRIVER_SOURCES) +endif if WITH_NETWORK noinst_LTLIBRARIES += libvirt_driver_network.la @@ -247,6 +257,7 @@ EXTRA_DIST += \ $(XEN_DRIVER_SOURCES) \ $(QEMU_DRIVER_SOURCES) \ $(LXC_DRIVER_SOURCES) \ + $(UML_DRIVER_SOURCES) \ $(OPENVZ_DRIVER_SOURCES) \ $(NETWORK_DRIVER_SOURCES) \ $(STORAGE_DRIVER_SOURCES) \ diff --git a/src/domain_conf.c b/src/domain_conf.c --- a/src/domain_conf.c +++ b/src/domain_conf.c @@ -86,7 +86,8 @@ VIR_ENUM_IMPL(virDomainDiskBus, VIR_DOMA "scsi", "virtio", "xen", - "usb") + "usb", + "uml") VIR_ENUM_IMPL(virDomainFS, VIR_DOMAIN_FS_TYPE_LAST, "mount", @@ -610,7 +611,8 @@ virDomainDiskDefParseXML(virConnectPtr c !STRPREFIX((const char *)target, "hd") && !STRPREFIX((const char *)target, "sd") && !STRPREFIX((const char *)target, "vd") && - !STRPREFIX((const char *)target, "xvd")) { + !STRPREFIX((const char *)target, "xvd") && + !STRPREFIX((const char *)target, "ubd")) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Invalid harddisk device name: %s"), target); goto error; @@ -634,6 +636,8 @@ virDomainDiskDefParseXML(virConnectPtr c def->bus = VIR_DOMAIN_DISK_BUS_VIRTIO; else if (STRPREFIX(target, "xvd")) def->bus = VIR_DOMAIN_DISK_BUS_XEN; + else if (STRPREFIX(target, "ubd")) + def->bus = VIR_DOMAIN_DISK_BUS_UML; else def->bus = VIR_DOMAIN_DISK_BUS_IDE; } @@ -1879,13 +1883,16 @@ static virDomainDefPtr virDomainDefParse } if (STREQ(def->os.type, "xen") || - STREQ(def->os.type, "hvm")) { + STREQ(def->os.type, "hvm") || + STREQ(def->os.type, "uml")) { def->os.kernel = virXPathString(conn, "string(./os/kernel[1])", ctxt); def->os.initrd = virXPathString(conn, "string(./os/initrd[1])", ctxt); def->os.cmdline = virXPathString(conn, "string(./os/cmdline[1])", ctxt); def->os.root = virXPathString(conn, "string(./os/root[1])", ctxt); def->os.loader = virXPathString(conn, "string(./os/loader[1])", ctxt); + } + if (STREQ(def->os.type, "hvm")) { /* analysis of the boot devices */ if ((n = virXPathNodeSet(conn, "./os/boot", ctxt, &nodes)) < 0) { virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, @@ -2016,32 +2023,30 @@ static virDomainDefPtr virDomainDefParse } VIR_FREE(nodes); - /* - * If no serial devices were listed, then look for console - * devices which is the legacy syntax for the same thing - */ - if (def->nserials == 0) { - if ((node = virXPathNode(conn, "./devices/console[1]", ctxt)) != NULL) { - virDomainChrDefPtr chr = virDomainChrDefParseXML(conn, - node); - if (!chr) - goto error; + if ((node = virXPathNode(conn, "./devices/console[1]", ctxt)) != NULL) { + virDomainChrDefPtr chr = virDomainChrDefParseXML(conn, + node); + if (!chr) + goto error; - chr->dstPort = 0; - /* - * For HVM console actually created a serial device - * while for non-HVM it was a parvirt console - */ - if (STREQ(def->os.type, "hvm")) { + chr->dstPort = 0; + /* + * For HVM console actually created a serial device + * while for non-HVM it was a parvirt console + */ + if (STREQ(def->os.type, "hvm")) { + if (def->nserials != 0) { + virDomainChrDefFree(chr); + } else { if (VIR_ALLOC_N(def->serials, 1) < 0) { virDomainChrDefFree(chr); goto no_memory; } def->nserials = 1; def->serials[0] = chr; - } else { - def->console = chr; } + } else { + def->console = chr; } } diff --git a/src/domain_conf.h b/src/domain_conf.h --- a/src/domain_conf.h +++ b/src/domain_conf.h @@ -75,6 +75,7 @@ enum virDomainDiskBus { VIR_DOMAIN_DISK_BUS_VIRTIO, VIR_DOMAIN_DISK_BUS_XEN, VIR_DOMAIN_DISK_BUS_USB, + VIR_DOMAIN_DISK_BUS_UML, VIR_DOMAIN_DISK_BUS_LAST }; diff --git a/src/driver.h b/src/driver.h --- a/src/driver.h +++ b/src/driver.h @@ -17,7 +17,8 @@ typedef enum { VIR_DRV_QEMU = 3, VIR_DRV_REMOTE = 4, VIR_DRV_OPENVZ = 5, - VIR_DRV_LXC = 6 + VIR_DRV_LXC = 6, + VIR_DRV_UML = 7, } virDrvNo; diff --git a/src/qemu_conf.c b/src/qemu_conf.c --- a/src/qemu_conf.c +++ b/src/qemu_conf.c @@ -56,7 +56,8 @@ VIR_ENUM_IMPL(virDomainDiskQEMUBus, VIR_ "scsi", "virtio", "xen", - "usb") + "usb", + "uml") #define qemudLog(level, msg...) fprintf(stderr, msg) diff --git a/src/uml_conf.c b/src/uml_conf.c new file mode 100644 --- /dev/null +++ b/src/uml_conf.c @@ -0,0 +1,404 @@ +/* + * uml_conf.c: UML driver configuration + * + * Copyright (C) 2006, 2007, 2008 Red Hat, Inc. + * Copyright (C) 2006 Daniel P. Berrange + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Daniel P. Berrange <berrange(a)redhat.com> + */ + +#include <config.h> + +#include <dirent.h> +#include <string.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <fcntl.h> +#include <sys/wait.h> +#include <arpa/inet.h> +#include <sys/utsname.h> + +#if HAVE_NUMACTL +#include <numa.h> +#endif + +#include "uml_conf.h" +#include "uuid.h" +#include "buf.h" +#include "conf.h" +#include "util.h" +#include "memory.h" +#include "verify.h" + + +#define umlLog(level, msg...) fprintf(stderr, msg) + + + +#if HAVE_NUMACTL +#define MAX_CPUS 4096 +#define MAX_CPUS_MASK_SIZE (sizeof(unsigned long)) +#define MAX_CPUS_MASK_LEN (MAX_CPUS / MAX_CPUS_MASK_SIZE) +#define MAX_CPUS_MASK_BYTES (MAX_CPUS / 8) + +#define MASK_CPU_ISSET(mask, cpu) \ + (((mask)[((cpu) / MAX_CPUS_MASK_SIZE)] >> ((cpu) % MAX_CPUS_MASK_SIZE)) & 1) + +static int +umlCapsInitNUMA(virCapsPtr caps) +{ + int n, i; + unsigned long *mask = NULL; + int ncpus; + int *cpus = NULL; + int ret = -1; + + if (numa_available() < 0) + return 0; + + if (VIR_ALLOC_N(mask, MAX_CPUS_MASK_LEN) < 0) + goto cleanup; + + for (n = 0 ; n <= numa_max_node() ; n++) { + if (numa_node_to_cpus(n, mask, MAX_CPUS_MASK_BYTES) < 0) + goto cleanup; + + for (ncpus = 0, i = 0 ; i < MAX_CPUS ; i++) + if (MASK_CPU_ISSET(mask, i)) + ncpus++; + + if (VIR_ALLOC_N(cpus, ncpus) < 0) + goto cleanup; + + for (ncpus = 0, i = 0 ; i < MAX_CPUS ; i++) + if (MASK_CPU_ISSET(mask, i)) + cpus[ncpus++] = i; + + if (virCapabilitiesAddHostNUMACell(caps, + n, + ncpus, + cpus) < 0) + goto cleanup; + + VIR_FREE(cpus); + } + + ret = 0; + +cleanup: + VIR_FREE(cpus); + VIR_FREE(mask); + return ret; +} +#else +static int umlCapsInitNUMA(virCapsPtr caps ATTRIBUTE_UNUSED) { return 0; } +#endif + +virCapsPtr umlCapsInit(void) { + struct utsname utsname; + virCapsPtr caps; + virCapsGuestPtr guest; + + /* Really, this never fails - look at the man-page. */ + uname (&utsname); + + if ((caps = virCapabilitiesNew(utsname.machine, + 0, 0)) == NULL) + goto no_memory; + + if (umlCapsInitNUMA(caps) < 0) + goto no_memory; + + if ((guest = virCapabilitiesAddGuest(caps, + "uml", + utsname.machine, + STREQ(utsname.machine, "x86_64") ? 64 : 32, + NULL, + NULL, + 0, + NULL)) == NULL) + goto no_memory; + + if (virCapabilitiesAddGuestDomain(guest, + "uml", + NULL, + NULL, + 0, + NULL) == NULL) + goto no_memory; + + return caps; + + no_memory: + virCapabilitiesFree(caps); + return NULL; +} + + +static char * +umlBuildCommandLineChr(virConnectPtr conn, + virDomainChrDefPtr def, + const char *dev) +{ + char *ret; + + switch (def->type) { + case VIR_DOMAIN_CHR_TYPE_NULL: + if (asprintf(&ret, "%s%d=null", dev, def->dstPort) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return NULL; + } + break; + + case VIR_DOMAIN_CHR_TYPE_PTY: + if (asprintf(&ret, "%s%d=pts", dev, def->dstPort) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return NULL; + } + break; + + case VIR_DOMAIN_CHR_TYPE_DEV: + if (asprintf(&ret, "%s%d=tty:%s", dev, def->dstPort, + def->data.file.path) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return NULL; + } + break; + + case VIR_DOMAIN_CHR_TYPE_STDIO: + if (asprintf(&ret, "%s%d=fd:0,fd:1", dev, def->dstPort) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return NULL; + } + break; + + case VIR_DOMAIN_CHR_TYPE_TCP: + if (def->data.tcp.listen != 1) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("only TCP listen is supported for chr device")); + return NULL; + } + + if (asprintf(&ret, "%s%d=port:%s", dev, def->dstPort, + def->data.tcp.service) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return NULL; + } + break; + + case VIR_DOMAIN_CHR_TYPE_FILE: + case VIR_DOMAIN_CHR_TYPE_PIPE: + /* XXX could open the file/pipe & just pass the FDs */ + + case VIR_DOMAIN_CHR_TYPE_VC: + case VIR_DOMAIN_CHR_TYPE_UDP: + case VIR_DOMAIN_CHR_TYPE_UNIX: + default: + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unsupported chr device type %d"), def->type); + break; + } + + return ret; +} + +/* + * Constructs a argv suitable for launching uml with config defined + * for a given virtual machine. + */ +int umlBuildCommandLine(virConnectPtr conn, + struct uml_driver *driver ATTRIBUTE_UNUSED, + virDomainObjPtr vm, + const char ***retargv, + const char ***retenv, + int **tapfds, + int *ntapfds) { + int i, j; + char memory[50]; + struct utsname ut; + int qargc = 0, qarga = 0; + const char **qargv = NULL; + int qenvc = 0, qenva = 0; + const char **qenv = NULL; + + uname(&ut); + +#define ADD_ARG_SPACE \ + do { \ + if (qargc == qarga) { \ + qarga += 10; \ + if (VIR_REALLOC_N(qargv, qarga) < 0) \ + goto no_memory; \ + } \ + } while (0) + +#define ADD_ARG(thisarg) \ + do { \ + ADD_ARG_SPACE; \ + qargv[qargc++] = thisarg; \ + } while (0) + +#define ADD_ARG_LIT(thisarg) \ + do { \ + ADD_ARG_SPACE; \ + if ((qargv[qargc++] = strdup(thisarg)) == NULL) \ + goto no_memory; \ + } while (0) + +#define ADD_ARG_PAIR(key,val) \ + do { \ + char *arg; \ + ADD_ARG_SPACE; \ + if (asprintf(&arg, "%s=%s", key, val) < 0) \ + goto no_memory; \ + qargv[qargc++] = arg; \ + } while (0) + + +#define ADD_ENV_SPACE \ + do { \ + if (qenvc == qenva) { \ + qenva += 10; \ + if (VIR_REALLOC_N(qenv, qenva) < 0) \ + goto no_memory; \ + } \ + } while (0) + +#define ADD_ENV(thisarg) \ + do { \ + ADD_ENV_SPACE; \ + qenv[qenvc++] = thisarg; \ + } while (0) + +#define ADD_ENV_LIT(thisarg) \ + do { \ + ADD_ENV_SPACE; \ + if ((qenv[qenvc++] = strdup(thisarg)) == NULL) \ + goto no_memory; \ + } while (0) + +#define ADD_ENV_COPY(envname) \ + do { \ + char *val = getenv(envname); \ + char *envval; \ + ADD_ENV_SPACE; \ + if (val != NULL) { \ + if (asprintf(&envval, "%s=%s", envname, val) < 0) \ + goto no_memory; \ + qenv[qenvc++] = envval; \ + } \ + } while (0) + + snprintf(memory, sizeof(memory), "%luK", vm->def->memory); + + ADD_ENV_LIT("LC_ALL=C"); + + ADD_ENV_COPY("LD_PRELOAD"); + ADD_ENV_COPY("LD_LIBRARY_PATH"); + ADD_ENV_COPY("PATH"); + ADD_ENV_COPY("HOME"); + ADD_ENV_COPY("USER"); + ADD_ENV_COPY("LOGNAME"); + ADD_ENV_COPY("TMPDIR"); + + ADD_ARG_LIT(vm->def->os.kernel); + //ADD_ARG_PAIR("con0", "fd:0,fd:1"); + ADD_ARG_PAIR("mem", memory); + ADD_ARG_PAIR("umid", vm->def->name); + + if (vm->def->os.root) + ADD_ARG_PAIR("root", vm->def->os.root); + + for (i = 0 ; i < vm->def->ndisks ; i++) { + virDomainDiskDefPtr disk = vm->def->disks[i]; + + if (!STRPREFIX(disk->dst, "ubd")) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("unsupported disk type '%s'"), disk->dst); + goto error; + } + + ADD_ARG_PAIR(disk->dst, disk->src); + } + + for (i = 0 ; i < 16 ; i++) { + char *ret; + if (i == 0 && vm->def->console) + ret = umlBuildCommandLineChr(conn, vm->def->console, "con"); + else + if (asprintf(&ret, "con%d=none", i) < 0) + goto no_memory; + ADD_ARG(ret); + } + + for (i = 0 ; i < 16 ; i++) { + virDomainChrDefPtr chr = NULL; + char *ret; + for (j = 0 ; j < vm->def->nserials ; j++) + if (vm->def->serials[j]->dstPort == i) + chr = vm->def->serials[j]; + if (chr) + ret = umlBuildCommandLineChr(conn, chr, "ssl"); + else + if (asprintf(&ret, "ssl%d=none", i) < 0) + goto no_memory; + ADD_ARG(ret); + } + + ADD_ARG(NULL); + ADD_ENV(NULL); + + *retargv = qargv; + *retenv = qenv; + return 0; + + no_memory: + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, + "%s", _("failed to allocate space for argv string")); + error: + if (tapfds && + *tapfds) { + for (i = 0; i < *ntapfds; i++) + close((*tapfds)[i]); + VIR_FREE(*tapfds); + *ntapfds = 0; + } + if (qargv) { + for (i = 0 ; i < qargc ; i++) + VIR_FREE((qargv)[i]); + VIR_FREE(qargv); + } + if (qenv) { + for (i = 0 ; i < qenvc ; i++) + VIR_FREE((qenv)[i]); + VIR_FREE(qenv); + } + return -1; + +#undef ADD_ARG +#undef ADD_ARG_LIT +#undef ADD_ARG_SPACE +#undef ADD_USBDISK +#undef ADD_ENV +#undef ADD_ENV_COPY +#undef ADD_ENV_LIT +#undef ADD_ENV_SPACE +} diff --git a/src/uml_conf.h b/src/uml_conf.h new file mode 100644 --- /dev/null +++ b/src/uml_conf.h @@ -0,0 +1,71 @@ +/* + * config.h: VM configuration management + * + * Copyright (C) 2006, 2007 Red Hat, Inc. + * Copyright (C) 2006 Daniel P. Berrange + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Daniel P. Berrange <berrange(a)redhat.com> + */ + +#ifndef __UML_CONF_H +#define __UML_CONF_H + +#include "internal.h" +#include "bridge.h" +#include "capabilities.h" +#include "network_conf.h" +#include "domain_conf.h" +#include "virterror_internal.h" + +#define umlDebug(fmt, ...) do {} while(0) + +#define UML_CPUMASK_LEN CPU_SETSIZE + +/* Main driver state */ +struct uml_driver { + unsigned int umlVersion; + int nextvmid; + + virDomainObjList domains; + + brControl *brctl; + char *configDir; + char *autostartDir; + char *logDir; + char *monitorDir; + + int inotifyFD; + + virCapsPtr caps; +}; + + +#define umlReportError(conn, dom, net, code, fmt...) \ + virReportErrorHelper(conn, VIR_FROM_UML, code, __FILE__, \ + __FUNCTION__, __LINE__, fmt) + +virCapsPtr umlCapsInit (void); + +int umlBuildCommandLine (virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr dom, + const char ***retargv, + const char ***retenv, + int **tapfds, + int *ntapfds); + +#endif /* __UML_CONF_H */ diff --git a/src/uml_driver.c b/src/uml_driver.c new file mode 100644 --- /dev/null +++ b/src/uml_driver.c @@ -0,0 +1,1671 @@ +/* + * driver.c: core driver methods for managing qemu guests + * + * Copyright (C) 2006, 2007, 2008 Red Hat, Inc. + * Copyright (C) 2006-2008 Daniel P. Berrange + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Daniel P. Berrange <berrange(a)redhat.com> + */ + +#include <config.h> + +#include <sys/types.h> +#include <sys/poll.h> +#include <dirent.h> +#include <limits.h> +#include <string.h> +#include <stdio.h> +#include <strings.h> +#include <stdarg.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> +#include <sys/utsname.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <signal.h> +#include <paths.h> +#include <pwd.h> +#include <stdio.h> +#include <sys/wait.h> +#include <sys/ioctl.h> +#include <sys/inotify.h> + +#if HAVE_NUMACTL +#include <numa.h> +#endif + +#include "uml_driver.h" +#include "uml_conf.h" +#include "c-ctype.h" +#include "event.h" +#include "buf.h" +#include "util.h" +#include "nodeinfo.h" +#include "stats_linux.h" +#include "capabilities.h" +#include "memory.h" +#include "uuid.h" +#include "domain_conf.h" +#include "datatypes.h" + +/* For storing short-lived temporary files. */ +#define TEMPDIR LOCAL_STATE_DIR "/cache/libvirt" + +static int umlShutdown(void); + +/* umlDebug statements should be changed to use this macro instead. */ +#define DEBUG(fmt,...) VIR_DEBUG(__FILE__, fmt, __VA_ARGS__) +#define DEBUG0(msg) VIR_DEBUG(__FILE__, "%s", msg) + +#define umlLog(level, msg...) fprintf(stderr, msg) + + +static int umlOpenMonitor(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm); +static int umlReadPidFile(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm); + +static int umlSetCloseExec(int fd) { + int flags; + if ((flags = fcntl(fd, F_GETFD)) < 0) + goto error; + flags |= FD_CLOEXEC; + if ((fcntl(fd, F_SETFD, flags)) < 0) + goto error; + return 0; + error: + umlLog(UML_ERR, + "%s", _("Failed to set close-on-exec file descriptor flag\n")); + return -1; +} + +static int umlStartVMDaemon(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm); + +static void umlShutdownVMDaemon(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm); + + +static int umlMonitorCommand (virConnectPtr conn, + const struct uml_driver *driver, + const virDomainObjPtr vm, + const char *cmd, + char **reply); + +static struct uml_driver *uml_driver = NULL; + + +static void +umlAutostartConfigs(struct uml_driver *driver) { + unsigned int i; + + for (i = 0 ; i < driver->domains.count ; i++) { + if (driver->domains.objs[i]->autostart && + !virDomainIsActive(driver->domains.objs[i]) && + umlStartVMDaemon(NULL, driver, driver->domains.objs[i]) < 0) { + virErrorPtr err = virGetLastError(); + umlLog(UML_ERR, _("Failed to autostart VM '%s': %s\n"), + driver->domains.objs[i]->def->name, err->message); + } + } +} + + +static int +umlIdentifyOneChrPTY(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr dom, + virDomainChrDefPtr def, + const char *dev) +{ + char *cmd; + char *res = NULL; + int retries = 0; + if (asprintf(&cmd, "config %s%d", dev, def->dstPort) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return -1; + } +requery: + umlMonitorCommand(NULL, driver, dom, cmd, &res); + + if (STRPREFIX(res, "pts:")) { + VIR_FREE(def->data.file.path); + if ((def->data.file.path = strdup(res + 4)) == NULL) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + VIR_FREE(res); + VIR_FREE(cmd); + return -1; + } + } else if (STRPREFIX(res, "pts")) { + /* It can take a while to startup, so retry for + upto 5 seconds */ + /* XXX should do this in a better non-blocking + way somehow ...perhaps register a timer */ + if (retries++ < 50) { + usleep(1000*10); + goto requery; + } + } + + VIR_FREE(cmd); + VIR_FREE(res); + return 0; +} + +static int +umlIdentifyChrPTY(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr dom) +{ + int i; + + if (dom->def->console && + dom->def->console->type == VIR_DOMAIN_CHR_TYPE_PTY) + if (umlIdentifyOneChrPTY(conn, driver, dom, + dom->def->console, "con") < 0) + return -1; + + for (i = 0 ; i < dom->def->nserials; i++) + if (dom->def->serials[i]->type == VIR_DOMAIN_CHR_TYPE_PTY && + umlIdentifyOneChrPTY(conn, driver, dom, + dom->def->serials[i], "ssl") < 0) + return -1; + + return 0; +} + +static void +umlInotifyEvent(int fd, + int events ATTRIBUTE_UNUSED, + void *data) +{ + char buf[1024]; + struct inotify_event *e; + int got; + char *tmp, *name; + struct uml_driver *driver = data; + virDomainObjPtr dom; + +reread: + got = read(fd, buf, sizeof(buf)); + if (got == -1) { + if (errno == EINTR) + goto reread; + return; + } + + tmp = buf; + while (got) { + if (got < sizeof(struct inotify_event)) + return; /* bad */ + + e = (struct inotify_event *)tmp; + tmp += sizeof(struct inotify_event); + got -= sizeof(struct inotify_event); + + if (got < e->len) + return; + + tmp += e->len; + got -= e->len; + + name = (char *)&(e->name); + + dom = virDomainFindByName(&driver->domains, name); + + if (!dom) { + continue; + } + + if (e->mask & IN_DELETE) { + if (!virDomainIsActive(dom)) { + continue; + } + + dom->def->id = -1; + dom->pid = -1; + if (dom->newDef) { + virDomainDefFree(dom->def); + dom->def = dom->newDef; + } + dom->state = VIR_DOMAIN_SHUTOFF; + } else if (e->mask & (IN_CREATE | IN_MODIFY)) { + if (virDomainIsActive(dom)) { + continue; + } + + if (umlReadPidFile(NULL, driver, dom) < 0) { + continue; + } + + dom->def->id = driver->nextvmid++; + dom->state = VIR_DOMAIN_RUNNING; + + if (umlOpenMonitor(NULL, driver, dom) < 0) + umlShutdownVMDaemon(NULL, driver, dom); + + if (umlIdentifyChrPTY(NULL, driver, dom) < 0) + umlShutdownVMDaemon(NULL, driver, dom); + } + } +} + +/** + * umlStartup: + * + * Initialization function for the Uml daemon + */ +static int +umlStartup(void) { + uid_t uid = geteuid(); + struct passwd *pw; + char *base = NULL; + char driverConf[PATH_MAX]; + + if (VIR_ALLOC(uml_driver) < 0) + return -1; + + /* Don't have a dom0 so start from 1 */ + uml_driver->nextvmid = 1; + + if (!(pw = getpwuid(uid))) { + umlLog(UML_ERR, _("Failed to find user record for uid '%d': %s\n"), + uid, strerror(errno)); + goto out_nouid; + } + + if (!uid) { + if (asprintf(&uml_driver->logDir, + "%s/log/libvirt/uml", LOCAL_STATE_DIR) == -1) + goto out_of_memory; + + if ((base = strdup (SYSCONF_DIR "/libvirt")) == NULL) + goto out_of_memory; + } else { + if (asprintf(&uml_driver->logDir, + "%s/.libvirt/uml/log", pw->pw_dir) == -1) + goto out_of_memory; + + if (asprintf (&base, "%s/.libvirt", pw->pw_dir) == -1) + goto out_of_memory; + } + + if (asprintf (&uml_driver->monitorDir, + "%s/.uml", pw->pw_dir) == -1) + goto out_of_memory; + + /* Configuration paths are either ~/.libvirt/uml/... (session) or + * /etc/libvirt/uml/... (system). + */ + if (snprintf (driverConf, sizeof(driverConf), "%s/uml.conf", base) == -1) + goto out_of_memory; + driverConf[sizeof(driverConf)-1] = '\0'; + + if (asprintf (&uml_driver->configDir, "%s/uml", base) == -1) + goto out_of_memory; + + if (asprintf (&uml_driver->autostartDir, "%s/uml/autostart", base) == -1) + goto out_of_memory; + + VIR_FREE(base); + + if ((uml_driver->caps = umlCapsInit()) == NULL) + goto out_of_memory; + + + if ((uml_driver->inotifyFD = inotify_init()) < 0) { + umlLog(UML_ERR, "%s", _("cannot initialize inotify")); + goto out_nouid; + } + + if (virFileMakePath(uml_driver->monitorDir) < 0) { + umlLog(UML_ERR, _("Failed to create monitor directory %s: %s"), + uml_driver->monitorDir, strerror(errno)); + umlShutdown(); + return -1; + } + + if (inotify_add_watch(uml_driver->inotifyFD, + uml_driver->monitorDir, + IN_CREATE | IN_MODIFY | IN_DELETE) < 0) { + umlShutdown(); + return -1; + } + + if (virEventAddHandle(uml_driver->inotifyFD, POLLIN, + umlInotifyEvent, uml_driver) < 0) { + umlShutdown(); + return -1; + } + + if (virDomainLoadAllConfigs(NULL, + uml_driver->caps, + &uml_driver->domains, + uml_driver->configDir, + uml_driver->autostartDir, + NULL, NULL) < 0) { + umlShutdown(); + return -1; + } + umlAutostartConfigs(uml_driver); + + return 0; + + out_of_memory: + umlLog (UML_ERR, + "%s", _("umlStartup: out of memory\n")); + out_nouid: + VIR_FREE(base); + VIR_FREE(uml_driver); + return -1; +} + +/** + * umlReload: + * + * Function to restart the Uml daemon, it will recheck the configuration + * files and update its state and the networking + */ +static int +umlReload(void) { + if (!uml_driver) + return 0; + + virDomainLoadAllConfigs(NULL, + uml_driver->caps, + &uml_driver->domains, + uml_driver->configDir, + uml_driver->autostartDir, + NULL, NULL); + + umlAutostartConfigs(uml_driver); + + return 0; +} + +/** + * umlActive: + * + * Checks if the Uml daemon is active, i.e. has an active domain or + * an active network + * + * Returns 1 if active, 0 otherwise + */ +static int +umlActive(void) { + unsigned int i; + + if (!uml_driver) + return 0; + + for (i = 0 ; i < uml_driver->domains.count ; i++) + if (virDomainIsActive(uml_driver->domains.objs[i])) + return 1; + + /* Otherwise we're happy to deal with a shutdown */ + return 0; +} + +/** + * umlShutdown: + * + * Shutdown the Uml daemon, it will stop all active domains and networks + */ +static int +umlShutdown(void) { + unsigned int i; + + if (!uml_driver) + return -1; + + virEventRemoveHandle(uml_driver->inotifyFD); + close(uml_driver->inotifyFD); + virCapabilitiesFree(uml_driver->caps); + + /* shutdown active VMs */ + for (i = 0 ; i < uml_driver->domains.count ; i++) { + virDomainObjPtr dom = uml_driver->domains.objs[i]; + if (virDomainIsActive(dom)) + umlShutdownVMDaemon(NULL, uml_driver, dom); + if (!dom->persistent) + virDomainRemoveInactive(&uml_driver->domains, + dom); + } + + virDomainObjListFree(&uml_driver->domains); + + VIR_FREE(uml_driver->logDir); + VIR_FREE(uml_driver->configDir); + VIR_FREE(uml_driver->autostartDir); + VIR_FREE(uml_driver->monitorDir); + + if (uml_driver->brctl) + brShutdown(uml_driver->brctl); + + VIR_FREE(uml_driver); + + return 0; +} + + +static int umlReadPidFile(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm) +{ + int rc = -1; + FILE *file; + char *pidfile = NULL; + int retries = 0; + + vm->pid = -1; + if (asprintf(&pidfile, "%s/%s/pid", + driver->monitorDir, vm->def->name) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return -1; + } + +reopen: + if (!(file = fopen(pidfile, "r"))) { + if (errno == ENOENT && + retries++ < 50) { + usleep(1000 * 100); + goto reopen; + } + goto cleanup; + } + + if (fscanf(file, "%d", &vm->pid) != 1) { + errno = EINVAL; + goto cleanup; + } + + if (fclose(file) < 0) + goto cleanup; + + rc = 0; + + cleanup: + if (rc != 0) + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("failed to read pid: %s: %s"), + pidfile, strerror(errno)); + VIR_FREE(pidfile); + return rc; +} + +static int umlMonitorAddress(virConnectPtr conn, + const struct uml_driver *driver, + virDomainObjPtr vm, + struct sockaddr_un *addr) { + char *sockname; + + if (asprintf(&sockname, "%s/%s/mconsole", + driver->monitorDir, vm->def->name) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return -1; + } + + memset(addr, 0, sizeof *addr); + addr->sun_family = AF_UNIX; + strncpy(addr->sun_path, sockname, sizeof(addr->sun_path)-1); + NUL_TERMINATE(addr->sun_path); + VIR_FREE(sockname); + return 0; +} + +static int umlOpenMonitor(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm) { + struct sockaddr_un addr; + struct stat sb; + int retries = 0; + + if (umlMonitorAddress(conn, driver, vm, &addr) < 0) + return -1; + +restat: + if (stat(addr.sun_path, &sb) < 0) { + if (errno == ENOENT && + retries < 50) { + usleep(1000 * 100); + goto restat; + } + return -1; + } + + if ((vm->monitor = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot open socket %s"), strerror(errno)); + return -1; + } + + memset(addr.sun_path, 0, sizeof addr.sun_path); + sprintf(addr.sun_path + 1, "%u", getpid()); + if (bind(vm->monitor, (struct sockaddr *)&addr, sizeof addr) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot bind socket %s"), strerror(errno)); + close(vm->monitor); + vm->monitor = -1; + return -1; + } + + return 0; +} + + +#define MONITOR_MAGIC 0xcafebabe +#define MONITOR_BUFLEN 512 +#define MONITOR_VERSION 2 + +struct monitor_request { + uint32_t magic; + uint32_t version; + uint32_t length; + char data[MONITOR_BUFLEN]; +}; + +struct monitor_response { + uint32_t error; + uint32_t extra; + uint32_t length; + char data[MONITOR_BUFLEN]; +}; + + +static int umlMonitorCommand(virConnectPtr conn, + const struct uml_driver *driver, + const virDomainObjPtr vm, + const char *cmd, + char **reply) +{ + struct monitor_request req; + struct monitor_response res; + char *retdata = NULL; + int retlen = 0, ret = 0; + struct sockaddr_un addr; + unsigned int addrlen; + + *reply = NULL; + + if (umlMonitorAddress(conn, driver, vm, &addr) < 0) + return -1; + + memset(&req, 0, sizeof(req)); + req.magic = MONITOR_MAGIC; + req.version = MONITOR_VERSION; + req.length = strlen(cmd); + if (req.length > (MONITOR_BUFLEN-1)) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot send too long command %s: %s"), + cmd, strerror(EINVAL)); + return -1; + } + strncpy(req.data, cmd, req.length); + req.data[req.length] = '\0'; + + if (sendto(vm->monitor, &req, sizeof req, 0, + (struct sockaddr *)&addr, sizeof addr) != (sizeof req)) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot send command %s: %s"), + cmd, strerror(errno)); + return -1; + } + + do { + addrlen = sizeof(addr); + if (recvfrom(vm->monitor, &res, sizeof res, 0, + (struct sockaddr *)&addr, &addrlen) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot read reply %s: %s"), + cmd, strerror(errno)); + goto error; + } + + if (VIR_REALLOC_N(retdata, retlen + res.length) < 0) { + umlReportError(conn, NULL, NULL, + VIR_ERR_NO_MEMORY, NULL); + goto error; + } + memcpy(retdata + retlen, res.data, res.length); + retlen += res.length - 1; + retdata[retlen] = '\0'; + + if (res.error) + ret = -1; + + } while (res.extra); + + *reply = retdata; + + return ret; + +error: + VIR_FREE(retdata); + return -1; +} + + +static int umlStartVMDaemon(virConnectPtr conn, + struct uml_driver *driver, + virDomainObjPtr vm) { + const char **argv = NULL, **tmp; + const char **progenv = NULL; + int i, ret, pid; + char *logfile; + int logfd = -1; + struct stat sb; + int *tapfds = NULL; + int ntapfds = 0; + fd_set keepfd; + + FD_ZERO(&keepfd); + + if (virDomainIsActive(vm)) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("VM is already active")); + return -1; + } + + if (!vm->def->os.kernel) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("no kernel specified")); + return -1; + } + /* Make sure the binary we are about to try exec'ing exists. + * Technically we could catch the exec() failure, but that's + * in a sub-process so its hard to feed back a useful error + */ + if (stat(vm->def->os.kernel, &sb) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("Cannot find UML kernel %s: %s"), + vm->def->os.kernel, strerror(errno)); + return -1; + } + + if (virFileMakePath(driver->logDir) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot create log directory %s"), + driver->logDir); + return -1; + } + + if (asprintf(&logfile, "%s/%s.log", + driver->logDir, vm->def->name) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, NULL); + return -1; + } + + if ((logfd = open(logfile, O_CREAT | O_TRUNC | O_WRONLY, + S_IRUSR | S_IWUSR)) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("failed to create logfile %s: %s"), + logfile, strerror(errno)); + VIR_FREE(logfile); + return -1; + } + VIR_FREE(logfile); + + if (umlSetCloseExec(logfd) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("Unable to set VM logfile close-on-exec flag %s"), + strerror(errno)); + close(logfd); + return -1; + } + + if (umlBuildCommandLine(conn, driver, vm, + &argv, &progenv, + &tapfds, &ntapfds) < 0) { + close(logfd); + return -1; + } + + tmp = progenv; + while (*tmp) { + if (safewrite(logfd, *tmp, strlen(*tmp)) < 0) + umlLog(UML_WARN, _("Unable to write envv to logfile %d: %s\n"), + errno, strerror(errno)); + if (safewrite(logfd, " ", 1) < 0) + umlLog(UML_WARN, _("Unable to write envv to logfile %d: %s\n"), + errno, strerror(errno)); + tmp++; + } + tmp = argv; + while (*tmp) { + if (safewrite(logfd, *tmp, strlen(*tmp)) < 0) + umlLog(UML_WARN, _("Unable to write argv to logfile %d: %s\n"), + errno, strerror(errno)); + if (safewrite(logfd, " ", 1) < 0) + umlLog(UML_WARN, _("Unable to write argv to logfile %d: %s\n"), + errno, strerror(errno)); + tmp++; + } + if (safewrite(logfd, "\n", 1) < 0) + umlLog(UML_WARN, _("Unable to write argv to logfile %d: %s\n"), + errno, strerror(errno)); + + vm->monitor = -1; + vm->stdin_fd = -1; + vm->stdout_fd = vm->stderr_fd = logfd; + + for (i = 0 ; i < ntapfds ; i++) + FD_SET(tapfds[i], &keepfd); + + ret = virExec(conn, argv, progenv, &keepfd, &pid, + vm->stdin_fd, &vm->stdout_fd, &vm->stderr_fd, + VIR_EXEC_DAEMON); + close(logfd); + + /* Cleanup intermediate proces */ + if (waitpid(pid, NULL, 0) != pid) + umlLog(UML_WARN, _("failed to wait on process: %d: %s\n"), + pid, strerror(errno)); + + for (i = 0 ; argv[i] ; i++) + VIR_FREE(argv[i]); + VIR_FREE(argv); + + for (i = 0 ; progenv[i] ; i++) + VIR_FREE(progenv[i]); + VIR_FREE(progenv); + + if (tapfds) { + for (i = 0 ; i < ntapfds ; i++) { + close(tapfds[i]); + } + VIR_FREE(tapfds); + } + + /* NB we don't mark it running here - we do that async + with inotify */ + + return ret; +} + +static void umlShutdownVMDaemon(virConnectPtr conn ATTRIBUTE_UNUSED, + struct uml_driver *driver ATTRIBUTE_UNUSED, + virDomainObjPtr vm) +{ + int ret; + if (!virDomainIsActive(vm) || + vm->pid <= 1) + return; + + + kill(vm->pid, SIGTERM); + + if (vm->monitor != -1) + close(vm->monitor); + vm->monitor = -1; + + if ((ret = waitpid(vm->pid, NULL, 0)) != vm->pid) { + umlLog(UML_WARN, + _("Got unexpected pid %d != %d\n"), + ret, vm->pid); + } + + vm->pid = -1; + vm->def->id = -1; + vm->state = VIR_DOMAIN_SHUTOFF; + VIR_FREE(vm->vcpupids); + vm->nvcpupids = 0; + + if (vm->newDef) { + virDomainDefFree(vm->def); + vm->def = vm->newDef; + vm->def->id = -1; + vm->newDef = NULL; + } +} + + +static virDrvOpenStatus umlOpen(virConnectPtr conn, + virConnectAuthPtr auth ATTRIBUTE_UNUSED, + int flags ATTRIBUTE_UNUSED) { + uid_t uid = getuid(); + + if (uml_driver == NULL) + goto decline; + + if (conn->uri != NULL) { + if (conn->uri->scheme == NULL || conn->uri->path == NULL) + goto decline; + + if (STRNEQ (conn->uri->scheme, "uml")) + goto decline; + + if (uid != 0) { + if (STRNEQ (conn->uri->path, "/session")) + goto decline; + } else { /* root */ + if (STRNEQ (conn->uri->path, "/system") && + STRNEQ (conn->uri->path, "/session")) + goto decline; + } + } else { + conn->uri = xmlParseURI(uid ? "uml:///session" : "uml:///system"); + if (!conn->uri) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY,NULL); + return VIR_DRV_OPEN_ERROR; + } + } + + conn->privateData = uml_driver; + + return VIR_DRV_OPEN_SUCCESS; + + decline: + return VIR_DRV_OPEN_DECLINED; +} + +static int umlClose(virConnectPtr conn) { + /*struct uml_driver *driver = (struct uml_driver *)conn->privateData;*/ + + conn->privateData = NULL; + + return 0; +} + +static const char *umlGetType(virConnectPtr conn ATTRIBUTE_UNUSED) { + return "UML"; +} + +static int umlGetNodeInfo(virConnectPtr conn, + virNodeInfoPtr nodeinfo) { + return virNodeInfoPopulate(conn, nodeinfo); +} + + +static char *umlGetCapabilities(virConnectPtr conn) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + char *xml; + + if ((xml = virCapabilitiesFormatXML(driver->caps)) == NULL) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, + "%s", _("failed to allocate space for capabilities support")); + return NULL; + } + + return xml; +} + + +#if HAVE_NUMACTL +static int +umlNodeGetCellsFreeMemory(virConnectPtr conn, + unsigned long long *freeMems, + int startCell, + int maxCells) +{ + int n, lastCell, numCells; + + if (numa_available() < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT, + "%s", _("NUMA not supported on this host")); + return -1; + } + lastCell = startCell + maxCells - 1; + if (lastCell > numa_max_node()) + lastCell = numa_max_node(); + + for (numCells = 0, n = startCell ; n <= lastCell ; n++) { + long long mem; + if (numa_node_size64(n, &mem) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("Failed to query NUMA free memory")); + return -1; + } + freeMems[numCells++] = mem; + } + return numCells; +} + +static unsigned long long +umlNodeGetFreeMemory (virConnectPtr conn) +{ + unsigned long long freeMem = 0; + int n; + if (numa_available() < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT, + "%s", _("NUMA not supported on this host")); + return -1; + } + + for (n = 0 ; n <= numa_max_node() ; n++) { + long long mem; + if (numa_node_size64(n, &mem) < 0) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("Failed to query NUMA free memory")); + return -1; + } + freeMem += mem; + } + + return freeMem; +} + +#endif + +static int umlGetProcessInfo(unsigned long long *cpuTime, int pid) { + char proc[PATH_MAX]; + FILE *pidinfo; + unsigned long long usertime, systime; + + if (snprintf(proc, sizeof(proc), "/proc/%d/stat", pid) >= (int)sizeof(proc)) { + return -1; + } + + if (!(pidinfo = fopen(proc, "r"))) { + /*printf("cannot read pid info");*/ + /* VM probably shut down, so fake 0 */ + *cpuTime = 0; + return 0; + } + + if (fscanf(pidinfo, "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %llu %llu", &usertime, &systime) != 2) { + umlDebug("not enough arg"); + return -1; + } + + /* We got jiffies + * We want nanoseconds + * _SC_CLK_TCK is jiffies per second + * So calulate thus.... + */ + *cpuTime = 1000ull * 1000ull * 1000ull * (usertime + systime) / (unsigned long long)sysconf(_SC_CLK_TCK); + + umlDebug("Got %llu %llu %llu", usertime, systime, *cpuTime); + + fclose(pidinfo); + + return 0; +} + + +static virDomainPtr umlDomainLookupByID(virConnectPtr conn, + int id) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + virDomainObjPtr vm = virDomainFindByID(&driver->domains, id); + virDomainPtr dom; + + if (!vm) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL); + return NULL; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) dom->id = vm->def->id; + return dom; +} +static virDomainPtr umlDomainLookupByUUID(virConnectPtr conn, + const unsigned char *uuid) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, uuid); + virDomainPtr dom; + + if (!vm) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL); + return NULL; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) dom->id = vm->def->id; + return dom; +} +static virDomainPtr umlDomainLookupByName(virConnectPtr conn, + const char *name) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + virDomainObjPtr vm = virDomainFindByName(&driver->domains, name); + virDomainPtr dom; + + if (!vm) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL); + return NULL; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) dom->id = vm->def->id; + return dom; +} + +static int umlGetVersion(virConnectPtr conn, unsigned long *version) { + struct utsname ut; + int major, minor, micro; + + uname(&ut); + + if (sscanf(ut.release, "%u.%u.%u", + &major, &minor, &micro) != 3) { + umlReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot parse version %s"), ut.release); + return -1; + } + + *version = uml_driver->umlVersion; + return 0; +} + +static char * +umlGetHostname (virConnectPtr conn) +{ + int r; + char hostname[HOST_NAME_MAX+1], *str; + + r = gethostname (hostname, HOST_NAME_MAX+1); + if (r == -1) { + umlReportError (conn, NULL, NULL, VIR_ERR_SYSTEM_ERROR, + "%s", strerror (errno)); + return NULL; + } + /* Caller frees this string. */ + str = strdup (hostname); + if (str == NULL) { + umlReportError (conn, NULL, NULL, VIR_ERR_SYSTEM_ERROR, + "%s", strerror (errno)); + return NULL; + } + return str; +} + +static int umlListDomains(virConnectPtr conn, int *ids, int nids) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + int got = 0, i; + + for (i = 0 ; i < driver->domains.count && got < nids ; i++) + if (virDomainIsActive(driver->domains.objs[i])) + ids[got++] = driver->domains.objs[i]->def->id; + + return got; +} +static int umlNumDomains(virConnectPtr conn) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + int n = 0, i; + + for (i = 0 ; i < driver->domains.count ; i++) + if (virDomainIsActive(driver->domains.objs[i])) + n++; + + return n; +} +static virDomainPtr umlDomainCreate(virConnectPtr conn, const char *xml, + unsigned int flags ATTRIBUTE_UNUSED) { + virDomainDefPtr def; + virDomainObjPtr vm; + virDomainPtr dom; + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + + if (!(def = virDomainDefParseString(conn, driver->caps, xml))) + return NULL; + + vm = virDomainFindByName(&driver->domains, def->name); + if (vm) { + umlReportError(conn, NULL, NULL, VIR_ERR_OPERATION_FAILED, + _("domain '%s' is already defined"), + def->name); + virDomainDefFree(def); + return NULL; + } + vm = virDomainFindByUUID(&driver->domains, def->uuid); + if (vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(def->uuid, uuidstr); + umlReportError(conn, NULL, NULL, VIR_ERR_OPERATION_FAILED, + _("domain with uuid '%s' is already defined"), + uuidstr); + virDomainDefFree(def); + return NULL; + } + + if (!(vm = virDomainAssignDef(conn, + &driver->domains, + def))) { + virDomainDefFree(def); + return NULL; + } + + if (umlStartVMDaemon(conn, driver, vm) < 0) { + virDomainRemoveInactive(&driver->domains, + vm); + return NULL; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) dom->id = vm->def->id; + return dom; +} + + +static int umlDomainShutdown(virDomainPtr dom) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByID(&driver->domains, dom->id); + char* info; + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + _("no domain with matching id %d"), dom->id); + return -1; + } + +#if 0 + if (umlMonitorCommand(driver, vm, "system_powerdown", &info) < 0) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, + "%s", _("shutdown operation failed")); + return -1; + } +#endif + VIR_FREE(info); + return 0; + +} + + +static int umlDomainDestroy(virDomainPtr dom) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByID(&driver->domains, dom->id); + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + _("no domain with matching id %d"), dom->id); + return -1; + } + + umlShutdownVMDaemon(dom->conn, driver, vm); + if (!vm->persistent) + virDomainRemoveInactive(&driver->domains, + vm); + + return 0; +} + + +static char *umlDomainGetOSType(virDomainPtr dom) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + char *type; + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return NULL; + } + + if (!(type = strdup(vm->def->os.type))) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_NO_MEMORY, + "%s", _("failed to allocate space for ostype")); + return NULL; + } + return type; +} + +/* Returns max memory in kb, 0 if error */ +static unsigned long umlDomainGetMaxMemory(virDomainPtr dom) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(dom->uuid, uuidstr); + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + _("no domain with matching uuid '%s'"), uuidstr); + return 0; + } + + return vm->def->maxmem; +} + +static int umlDomainSetMaxMemory(virDomainPtr dom, unsigned long newmax) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(dom->uuid, uuidstr); + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + _("no domain with matching uuid '%s'"), uuidstr); + return -1; + } + + if (newmax < vm->def->memory) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_ARG, + "%s", _("cannot set max memory lower than current memory")); + return -1; + } + + vm->def->maxmem = newmax; + return 0; +} + +static int umlDomainSetMemory(virDomainPtr dom, unsigned long newmem) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + char uuidstr[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(dom->uuid, uuidstr); + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + _("no domain with matching uuid '%s'"), uuidstr); + return -1; + } + + if (virDomainIsActive(vm)) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_NO_SUPPORT, + "%s", _("cannot set memory of an active domain")); + return -1; + } + + if (newmem > vm->def->maxmem) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_ARG, + "%s", _("cannot set memory higher than max memory")); + return -1; + } + + vm->def->memory = newmem; + return 0; +} + +static int umlDomainGetInfo(virDomainPtr dom, + virDomainInfoPtr info) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return -1; + } + + info->state = vm->state; + + if (!virDomainIsActive(vm)) { + info->cpuTime = 0; + } else { + if (umlGetProcessInfo(&(info->cpuTime), vm->pid) < 0) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, ("cannot read cputime for domain")); + return -1; + } + } + + info->maxMem = vm->def->maxmem; + info->memory = vm->def->memory; + info->nrVirtCpu = vm->def->vcpus; + return 0; +} + + +static char *umlDomainDumpXML(virDomainPtr dom, + int flags ATTRIBUTE_UNUSED) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return NULL; + } + + return virDomainDefFormat(dom->conn, + (flags & VIR_DOMAIN_XML_INACTIVE) && vm->newDef ? + vm->newDef : vm->def, + flags); +} + + +static int umlListDefinedDomains(virConnectPtr conn, + char **const names, int nnames) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + int got = 0, i; + + for (i = 0 ; i < driver->domains.count && got < nnames ; i++) { + if (!virDomainIsActive(driver->domains.objs[i])) { + if (!(names[got++] = strdup(driver->domains.objs[i]->def->name))) { + umlReportError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, + "%s", _("failed to allocate space for VM name string")); + goto cleanup; + } + } + } + + return got; + + cleanup: + for (i = 0 ; i < got ; i++) + VIR_FREE(names[i]); + return -1; +} + +static int umlNumDefinedDomains(virConnectPtr conn) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + int n = 0, i; + + for (i = 0 ; i < driver->domains.count ; i++) + if (!virDomainIsActive(driver->domains.objs[i])) + n++; + + return n; +} + + +static int umlDomainStart(virDomainPtr dom) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return -1; + } + + return umlStartVMDaemon(dom->conn, driver, vm); +} + + +static virDomainPtr umlDomainDefine(virConnectPtr conn, const char *xml) { + struct uml_driver *driver = (struct uml_driver *)conn->privateData; + virDomainDefPtr def; + virDomainObjPtr vm; + virDomainPtr dom; + + if (!(def = virDomainDefParseString(conn, driver->caps, xml))) + return NULL; + + if (!(vm = virDomainAssignDef(conn, + &driver->domains, + def))) { + virDomainDefFree(def); + return NULL; + } + vm->persistent = 1; + + if (virDomainSaveConfig(conn, + driver->configDir, + vm->newDef ? vm->newDef : vm->def) < 0) { + virDomainRemoveInactive(&driver->domains, + vm); + return NULL; + } + + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); + if (dom) dom->id = vm->def->id; + return dom; +} + +static int umlDomainUndefine(virDomainPtr dom) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return -1; + } + + if (virDomainIsActive(vm)) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("cannot delete active domain")); + return -1; + } + + if (!vm->persistent) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("cannot undefine transient domain")); + return -1; + } + + if (virDomainDeleteConfig(dom->conn, driver->configDir, driver->autostartDir, vm) < 0) + return -1; + + virDomainRemoveInactive(&driver->domains, + vm); + + return 0; +} + + + +static int umlDomainGetAutostart(virDomainPtr dom, + int *autostart) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return -1; + } + + *autostart = vm->autostart; + + return 0; +} + +static int umlDomainSetAutostart(virDomainPtr dom, + int autostart) { + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + char *configFile = NULL, *autostartLink = NULL; + int ret = -1; + + if (!vm) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + "%s", _("no domain with matching uuid")); + return -1; + } + + if (!vm->persistent) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR, + "%s", _("cannot set autostart for transient domain")); + return -1; + } + + autostart = (autostart != 0); + + if (vm->autostart == autostart) + return 0; + + if ((configFile = virDomainConfigFile(dom->conn, driver->configDir, vm->def->name)) == NULL) + goto cleanup; + if ((autostartLink = virDomainConfigFile(dom->conn, driver->autostartDir, vm->def->name)) == NULL) + goto cleanup; + + if (autostart) { + int err; + + if ((err = virFileMakePath(driver->autostartDir))) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR, + _("cannot create autostart directory %s: %s"), + driver->autostartDir, strerror(err)); + goto cleanup; + } + + if (symlink(configFile, autostartLink) < 0) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR, + _("Failed to create symlink '%s to '%s': %s"), + autostartLink, configFile, strerror(errno)); + goto cleanup; + } + } else { + if (unlink(autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INTERNAL_ERROR, + _("Failed to delete symlink '%s': %s"), + autostartLink, strerror(errno)); + goto cleanup; + } + } + + vm->autostart = autostart; + ret = 0; + +cleanup: + VIR_FREE(configFile); + VIR_FREE(autostartLink); + + return ret; +} + + +static int +umlDomainBlockPeek (virDomainPtr dom, + const char *path, + unsigned long long offset, size_t size, + void *buffer, + unsigned int flags ATTRIBUTE_UNUSED) +{ + struct uml_driver *driver = (struct uml_driver *)dom->conn->privateData; + virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + int fd, ret = -1, i; + + if (!vm) { + umlReportError (dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, + _("no domain with matching uuid")); + return -1; + } + + if (!path || path[0] == '\0') { + umlReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_ARG, + _("NULL or empty path")); + return -1; + } + + /* Check the path belongs to this domain. */ + for (i = 0 ; i < vm->def->ndisks ; i++) { + if (vm->def->disks[i]->src != NULL && + STREQ (vm->def->disks[i]->src, path)) + goto found; + } + umlReportError (dom->conn, dom, NULL, VIR_ERR_INVALID_ARG, + _("invalid path")); + return -1; + +found: + /* The path is correct, now try to open it and get its size. */ + fd = open (path, O_RDONLY); + if (fd == -1) { + umlReportError (dom->conn, dom, NULL, VIR_ERR_SYSTEM_ERROR, + "%s", strerror (errno)); + goto done; + } + + /* Seek and read. */ + /* NB. Because we configure with AC_SYS_LARGEFILE, off_t should + * be 64 bits on all platforms. + */ + if (lseek (fd, offset, SEEK_SET) == (off_t) -1 || + saferead (fd, buffer, size) == (ssize_t) -1) { + umlReportError (dom->conn, dom, NULL, VIR_ERR_SYSTEM_ERROR, + "%s", strerror (errno)); + goto done; + } + + ret = 0; + done: + if (fd >= 0) close (fd); + return ret; +} + + + +static virDriver umlDriver = { + VIR_DRV_UML, + "UML", + LIBVIR_VERSION_NUMBER, + umlOpen, /* open */ + umlClose, /* close */ + NULL, /* supports_feature */ + umlGetType, /* type */ + umlGetVersion, /* version */ + umlGetHostname, /* hostname */ + NULL, /* URI */ + NULL, /* getMaxVcpus */ + umlGetNodeInfo, /* nodeGetInfo */ + umlGetCapabilities, /* getCapabilities */ + umlListDomains, /* listDomains */ + umlNumDomains, /* numOfDomains */ + umlDomainCreate, /* domainCreateXML */ + umlDomainLookupByID, /* domainLookupByID */ + umlDomainLookupByUUID, /* domainLookupByUUID */ + umlDomainLookupByName, /* domainLookupByName */ + NULL, /* domainSuspend */ + NULL, /* domainResume */ + umlDomainShutdown, /* domainShutdown */ + NULL, /* domainReboot */ + umlDomainDestroy, /* domainDestroy */ + umlDomainGetOSType, /* domainGetOSType */ + umlDomainGetMaxMemory, /* domainGetMaxMemory */ + umlDomainSetMaxMemory, /* domainSetMaxMemory */ + umlDomainSetMemory, /* domainSetMemory */ + umlDomainGetInfo, /* domainGetInfo */ + NULL, /* domainSave */ + NULL, /* domainRestore */ + NULL, /* domainCoreDump */ + NULL, /* domainSetVcpus */ + NULL, /* domainPinVcpu */ + NULL, /* domainGetVcpus */ + NULL, /* domainGetMaxVcpus */ + umlDomainDumpXML, /* domainDumpXML */ + umlListDefinedDomains, /* listDomains */ + umlNumDefinedDomains, /* numOfDomains */ + umlDomainStart, /* domainCreate */ + umlDomainDefine, /* domainDefineXML */ + umlDomainUndefine, /* domainUndefine */ + NULL, /* domainAttachDevice */ + NULL, /* domainDetachDevice */ + umlDomainGetAutostart, /* domainGetAutostart */ + umlDomainSetAutostart, /* domainSetAutostart */ + NULL, /* domainGetSchedulerType */ + NULL, /* domainGetSchedulerParameters */ + NULL, /* domainSetSchedulerParameters */ + NULL, /* domainMigratePrepare */ + NULL, /* domainMigratePerform */ + NULL, /* domainMigrateFinish */ + NULL, /* domainBlockStats */ + NULL, /* domainInterfaceStats */ + umlDomainBlockPeek, /* domainBlockPeek */ + NULL, /* domainMemoryPeek */ +#if HAVE_NUMACTL + umlNodeGetCellsFreeMemory, /* nodeGetCellsFreeMemory */ + umlNodeGetFreeMemory, /* getFreeMemory */ +#else + NULL, /* nodeGetCellsFreeMemory */ + NULL, /* getFreeMemory */ +#endif + NULL, /* domainEventRegister */ + NULL, /* domainEventUnregister */ + NULL, /* domainMigratePrepare2 */ + NULL, /* domainMigrateFinish2 */ +}; + + +static virStateDriver umlStateDriver = { + .initialize = umlStartup, + .cleanup = umlShutdown, + .reload = umlReload, + .active = umlActive, +}; + +int umlRegister(void) { + virRegisterDriver(&umlDriver); + virRegisterStateDriver(&umlStateDriver); + return 0; +} + diff --git a/src/uml_driver.h b/src/uml_driver.h new file mode 100644 --- /dev/null +++ b/src/uml_driver.h @@ -0,0 +1,32 @@ +/* + * uml_driver.h: user mode Linux driver + * + * Copyright (C) 2006, 2007 Red Hat, Inc. + * Copyright (C) 2006-2008 Daniel P. Berrange + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Daniel P. Berrange <berrange(a)redhat.com> + */ + + +#ifndef UML_DRIVER_H +#define UML_DRIVER_H + +#include "internal.h" + +int umlRegister(void); + +#endif /* UML_DRIVER_H */ diff --git a/src/virterror.c b/src/virterror.c --- a/src/virterror.c +++ b/src/virterror.c @@ -310,7 +310,9 @@ virDefaultErrorFunc(virErrorPtr err) case VIR_FROM_DOMAIN: dom = "Domain Config "; break; - + case VIR_FROM_UML: + dom = "UML "; + break; } if ((err->dom != NULL) && (err->code != VIR_ERR_INVALID_DOMAIN)) { domain = err->dom->name; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 3

[libvirt] [RFC PATCH] set tap mtu
by Chris Wright 18 Nov '08

18 Nov '08

Below is a simple PoC for setting a large MTU size on a tap device. With this we are able to improve net i/o throughput substantially (~40% improvement on TX and ~130% improvement on RX). This is just RFC because it's hardcoded to an MTU of 9000 for any tap device. Thoughts on the best way to add this kind of support? diff -up libvirt-0.4.6/src/bridge.c~tap-mtu libvirt-0.4.6/src/bridge.c --- libvirt-0.4.6/src/bridge.c~tap-mtu 2008-08-29 05:19:52.000000000 -0700 +++ libvirt-0.4.6/src/bridge.c 2008-11-17 18:37:56.000000000 -0800 @@ -276,6 +276,38 @@ brDeleteInterface(brControl *ctl ATTRIBU #endif /** + * ifSetMtu: + * @ctl: bridge control pointer + * @ifname: interface name to set MTU for + * @mtu: MTU value + * + * This function sets the @mtu for a given interface @ifname. Typically + * used on a tap device to set up for Jumbo Frames. + * + * Returns 0 in case of success or an errno code in case of failure. + */ +static int +ifSetMtu(brControl *ctl, const char *ifname, int mtu) +{ + struct ifreq ifr; + int len; + + if (!ctl || !ifname) + return EINVAL; + + if ((len = strlen(ifname)) >= BR_IFNAME_MAXLEN) + return EINVAL; + + memset(&ifr, 0, sizeof(struct ifreq)); + + strncpy(ifr.ifr_name, ifname, len); + ifr.ifr_name[len] = '\0'; + ifr.ifr_mtu = mtu; + + return ioctl(ctl->fd, SIOCSIFMTU, &ifr) == 0 ? 0 : errno; +} + +/** * brAddTap: * @ctl: bridge control pointer * @bridge: the bridge name @@ -334,6 +366,8 @@ brAddTap(brControl *ctl, } if (ioctl(fd, TUNSETIFF, &try) == 0) { + if ((errno = ifSetMtu(ctl, try.ifr_name, 9000))) + goto error; if ((errno = brAddInterface(ctl, bridge, try.ifr_name))) goto error; if ((errno = brSetInterfaceUp(ctl, try.ifr_name, 1)))

4 3

[libvirt] [PATCH 2/2] Java bindings for domain events
by David Lively 18 Nov '08

18 Nov '08

This patch allows the remote driver to work with an asynchronous EventImpl (it's the only one using an externally-supplied one), assuming libvirt is compiled with pthread support. (Without pthreads, this code is harmless in a single-threaded environment.) Basically it uses a mutex to protect reads from the RPC socket in such a way that message reads (in their entirety) are done atomically (otherwise the remoteDomainEventFired() can race the call() code that reads replies & events). In addition, I update the EventImpl handle to prevent remoteDomainEventFired() from being called everytime a reply is sent. (This helps us dispatch events in a timely manner, though it's not strictly necessary. Without it, any events coming in during a call() won't be dispatched until the call drops the socket lock (because remoteDomainEventFired() will be stuck awaiting the lock). Dave

2 2

[libvirt] ANNOUNCE: Ruby bindings for libvirt, version 0.1.0
by David Lutterkort 18 Nov '08

18 Nov '08

I am pleased to announce the release of version 0.1.0 of the ruby-libvirt bindings. NEWS: * Add binding for virConnectFindStoragePoolSources (clalance) * Fix dom_migrate (clalance) * Add the MIGRATE_LIVE (enum virDomainMigrateFlags) flag * Slight improvements of the unit tests The main site for the bindings is http://libvirt.org/ruby API docs can be found at http://libvirt.org/ruby/api/index.html Tarballs/src RPM's are at http://libvirt.org/ruby/download Packages for Fedora and EPEL5 are in the works and should show up on a friendly mirror near you soon. David

1 0

[libvirt] PATCH: Support events for define/undefine in QEMU
by Daniel P. Berrange 17 Nov '08

17 Nov '08

This patch adds support for the DEFINED and UNDEFINED events in the QEMU drive. This was more involved than I expected, because when the daemon gets SIGHUP it re-loads config files and we need to broadcast events for each new config file it finds. So I had to add a callback to the internal virDomainLoadAllConfigs method. The LoadConfig method also had a bogus line of code resetting the domain state to SHUTOFF, which made all your active VMs suddenlly appear inactive, after the daemon got SIGHUP ! Daniel diff --git a/src/domain_conf.c b/src/domain_conf.c --- a/src/domain_conf.c +++ b/src/domain_conf.c @@ -3242,18 +3242,20 @@ virDomainObjPtr virDomainLoadConfig(virC virDomainObjListPtr doms, const char *configDir, const char *autostartDir, - const char *name) + const char *name, + virDomainLoadConfigNotify notify, + void *opaque) { char *configFile = NULL, *autostartLink = NULL; virDomainDefPtr def = NULL; virDomainObjPtr dom; int autostart; + int newVM = 1; if ((configFile = virDomainConfigFile(conn, configDir, name)) == NULL) goto error; if ((autostartLink = virDomainConfigFile(conn, autostartDir, name)) == NULL) goto error; - if ((autostart = virFileLinkPointsTo(autostartLink, configFile)) < 0) goto error; @@ -3261,11 +3263,16 @@ virDomainObjPtr virDomainLoadConfig(virC if (!(def = virDomainDefParseFile(conn, caps, configFile))) goto error; + if (virDomainFindByName(doms, def->name)) + newVM = 0; + if (!(dom = virDomainAssignDef(conn, doms, def))) goto error; - dom->state = VIR_DOMAIN_SHUTOFF; dom->autostart = autostart; + + if (notify) + (*notify)(dom, newVM, opaque); return dom; @@ -3280,7 +3287,9 @@ int virDomainLoadAllConfigs(virConnectPt virCapsPtr caps, virDomainObjListPtr doms, const char *configDir, - const char *autostartDir) + const char *autostartDir, + virDomainLoadConfigNotify notify, + void *opaque) { DIR *dir; struct dirent *entry; @@ -3310,7 +3319,9 @@ int virDomainLoadAllConfigs(virConnectPt doms, configDir, autostartDir, - entry->d_name); + entry->d_name, + notify, + opaque); if (dom) dom->persistent = 1; } diff --git a/src/domain_conf.h b/src/domain_conf.h --- a/src/domain_conf.h +++ b/src/domain_conf.h @@ -549,18 +549,26 @@ int virDomainSaveConfig(virConnectPtr co const char *configDir, virDomainDefPtr def); +typedef void (*virDomainLoadConfigNotify)(virDomainObjPtr dom, + int newDomain, + void *opaque); + virDomainObjPtr virDomainLoadConfig(virConnectPtr conn, virCapsPtr caps, virDomainObjListPtr doms, const char *configDir, const char *autostartDir, - const char *name); + const char *name, + virDomainLoadConfigNotify notify, + void *opaque); int virDomainLoadAllConfigs(virConnectPtr conn, virCapsPtr caps, virDomainObjListPtr doms, const char *configDir, - const char *autostartDir); + const char *autostartDir, + virDomainLoadConfigNotify notify, + void *opaque); int virDomainDeleteConfig(virConnectPtr conn, const char *configDir, diff --git a/src/lxc_driver.c b/src/lxc_driver.c --- a/src/lxc_driver.c +++ b/src/lxc_driver.c @@ -1017,7 +1017,8 @@ static int lxcStartup(void) lxc_driver->caps, &lxc_driver->domains, lxc_driver->configDir, - lxc_driver->autostartDir) < 0) { + lxc_driver->autostartDir, + NULL, NULL) < 0) { lxcShutdown(); return -1; } diff --git a/src/qemu_driver.c b/src/qemu_driver.c --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -226,7 +226,8 @@ qemudStartup(void) { qemu_driver->caps, &qemu_driver->domains, qemu_driver->configDir, - qemu_driver->autostartDir) < 0) { + qemu_driver->autostartDir, + NULL, NULL) < 0) { qemudShutdown(); return -1; } @@ -241,6 +242,16 @@ qemudStartup(void) { VIR_FREE(base); VIR_FREE(qemu_driver); return -1; +} + +static void qemudNotifyLoadDomain(virDomainObjPtr vm, int newVM, void *opaque) +{ + struct qemud_driver *driver = opaque; + + if (newVM) + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_DEFINED, + VIR_DOMAIN_EVENT_DEFINED_ADDED); } /** @@ -258,7 +269,8 @@ qemudReload(void) { qemu_driver->caps, &qemu_driver->domains, qemu_driver->configDir, - qemu_driver->autostartDir); + qemu_driver->autostartDir, + qemudNotifyLoadDomain, qemu_driver); qemudAutostartConfigs(qemu_driver); @@ -2356,9 +2368,14 @@ static virDomainPtr qemudDomainDefine(vi virDomainDefPtr def; virDomainObjPtr vm; virDomainPtr dom; + int newVM = 1; if (!(def = virDomainDefParseString(conn, driver->caps, xml))) return NULL; + + vm = virDomainFindByName(&driver->domains, def->name); + if (vm) + newVM = 0; if (!(vm = virDomainAssignDef(conn, &driver->domains, @@ -2375,6 +2392,12 @@ static virDomainPtr qemudDomainDefine(vi vm); return NULL; } + + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_DEFINED, + newVM ? + VIR_DOMAIN_EVENT_DEFINED_ADDED : + VIR_DOMAIN_EVENT_DEFINED_UPDATED); dom = virGetDomain(conn, vm->def->name, vm->def->uuid); if (dom) dom->id = vm->def->id; @@ -2405,6 +2428,8 @@ static int qemudDomainUndefine(virDomain if (virDomainDeleteConfig(dom->conn, driver->configDir, driver->autostartDir, vm) < 0) return -1; + + qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_UNDEFINED, 0); virDomainRemoveInactive(&driver->domains, vm); -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 2

[libvirt] PATCH: Add domain event "detail" information
by Daniel P. Berrange 17 Nov '08

17 Nov '08

As per our earlier discussion today, this patch expands the callback for domain events so that it also gets a event type specific 'detail' field. This is also kept as an int, and we define enumerations for the possible values associated with each type. If a event type has no detail, 0 is passed. The RESTORED and SAVED event types disappear in this patch and just become another piece of 'detail' to the STOPPED and STARTED events. I have also renamed ADDED & REMOVED to DEFINED and UNDEFINED to match terminology we have elsewhere & because the names were confusing me Easiest to just look at the final set: typedef enum { VIR_DOMAIN_EVENT_DEFINED = 0, VIR_DOMAIN_EVENT_UNDEFINED = 1, VIR_DOMAIN_EVENT_STARTED = 2, VIR_DOMAIN_EVENT_SUSPENDED = 3, VIR_DOMAIN_EVENT_RESUMED = 4, VIR_DOMAIN_EVENT_STOPPED = 5, } virDomainEventType; typedef enum { VIR_DOMAIN_EVENT_STARTED_BOOTED = 0, /* Normal startup from boot */ VIR_DOMAIN_EVENT_STARTED_MIGRATED = 1, /* Incoming migration from another host */ VIR_DOMAIN_EVENT_STARTED_RESTORED = 2, /* Restored from a state file */ } virDomainEventStartedDetailType; typedef enum { VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN = 0, /* Normal shutdown */ VIR_DOMAIN_EVENT_STOPPED_DESTROYED = 1, /* Forced poweroff from host */ VIR_DOMAIN_EVENT_STOPPED_CRASHED = 2, /* Guest crashed */ VIR_DOMAIN_EVENT_STOPPED_MIGRATED = 3, /* Migrated off to another host */ VIR_DOMAIN_EVENT_STOPPED_SAVED = 4, /* Saved to a state file */ VIR_DOMAIN_EVENT_STOPPED_FAILED = 5, /* Host emulator/mgmt failed */ } virDomainEventStoppedDetailType; typedef enum { VIR_DOMAIN_EVENT_DEFINED_ADDED = 0, /* Newly created config file */ VIR_DOMAIN_EVENT_DEFINED_UPDATED = 1, /* Changed config file */ } virDomainEventDefinedDetailType; I don't make use of 'CRASHED' in QEMU driver yet. It might be useful in Xen though - when a PV guest crashes, Xen stops the domain running, but leaves it there in a shutoff state, but marked as crashed. Now using the C event-test program you can see the effects: myDomainEventCallback1 EVENT: Domain F9x86_64(2) Started Booted myDomainEventCallback2 EVENT: Domain F9x86_64(2) Started Booted myDomainEventCallback1 EVENT: Domain F9x86_64(-1) Stopped Destroyed myDomainEventCallback2 EVENT: Domain F9x86_64(-1) Stopped Destroyed myDomainEventCallback1 EVENT: Domain F9x86_64(3) Started Booted myDomainEventCallback2 EVENT: Domain F9x86_64(3) Started Booted myDomainEventCallback1 EVENT: Domain F9x86_64(3) Suspended myDomainEventCallback2 EVENT: Domain F9x86_64(3) Suspended myDomainEventCallback1 EVENT: Domain F9x86_64(3) Resumed myDomainEventCallback2 EVENT: Domain F9x86_64(3) Resumed myDomainEventCallback1 EVENT: Domain F9x86_64(-1) Stopped Shutdown myDomainEventCallback2 EVENT: Domain F9x86_64(-1) Stopped Shutdown Of the following sequence of actions virsh start F9x86_64 virsh destroy F9x86_64 virsh start F9x86_64 virsh suspend F9x86_64 virsh resume F9x86_64 virsh shutdown F9x86_64 For the last 'shutdown' operation, you'll see the same if you just run a graceful shutdown inside the guest itself. NB, I've not tested saved/restored because my install of KVM is not new enough to support that correctly, but I expect it to work without trouble. Likewise for migration. A word about migration... - The destination host first gets a STARTED event, with detail MIGRATED when it starts running - The source host then gets a STOPPED event with detail MIGRATED when it completes - The destination host then gets a RESUMED event, on success, and a STOPPED event with detail FAILED if migration aborts. Daniel examples/domain-events/events-c/event-test.c | 78 +++++++++++++++---- examples/domain-events/events-python/event-test.py | 8 +- include/libvirt/libvirt.h | 29 ++++++- include/libvirt/libvirt.h.in | 29 ++++++- python/libvir.c | 6 + qemud/qemud.h | 1 qemud/remote.c | 22 +++-- qemud/remote_protocol.c | 2 qemud/remote_protocol.h | 1 qemud/remote_protocol.x | 1 src/domain_event.c | 4 - src/domain_event.h | 6 + src/qemu_driver.c | 82 +++++++++++++++------ src/remote_internal.c | 29 ++++--- 18 files changed, 366 insertions(+), 118 deletions(-) diff --git a/examples/domain-events/events-c/event-test.c b/examples/domain-events/events-c/event-test.c --- a/examples/domain-events/events-c/event-test.c +++ b/examples/domain-events/events-c/event-test.c @@ -35,9 +35,9 @@ void *t_opaque = NULL; /* Prototypes */ const char *eventToString(int event); int myDomainEventCallback1 (virConnectPtr conn, virDomainPtr dom, - int event, void *opaque); + int event, int detail, void *opaque); int myDomainEventCallback2 (virConnectPtr conn, virDomainPtr dom, - int event, void *opaque); + int event, int detail, void *opaque); int myEventAddHandleFunc (int fd, int event, virEventHandleCallback cb, void *opaque); void myEventUpdateHandleFunc(int fd, int event); @@ -58,11 +58,11 @@ const char *eventToString(int event) { const char *eventToString(int event) { const char *ret = NULL; switch(event) { - case VIR_DOMAIN_EVENT_ADDED: - ret ="Added"; + case VIR_DOMAIN_EVENT_DEFINED: + ret ="Defined"; break; - case VIR_DOMAIN_EVENT_REMOVED: - ret ="Removed"; + case VIR_DOMAIN_EVENT_UNDEFINED: + ret ="Undefined"; break; case VIR_DOMAIN_EVENT_STARTED: ret ="Started"; @@ -76,14 +76,56 @@ const char *eventToString(int event) { case VIR_DOMAIN_EVENT_STOPPED: ret ="Stopped"; break; - case VIR_DOMAIN_EVENT_SAVED: - ret ="Saved"; - break; - case VIR_DOMAIN_EVENT_RESTORED: - ret ="Restored"; - break; default: ret ="Unknown Event"; + } + return ret; +} + +static const char *eventDetailToString(int event, int detail) { + const char *ret = ""; + switch(event) { + case VIR_DOMAIN_EVENT_DEFINED: + if (detail == VIR_DOMAIN_EVENT_DEFINED_ADDED) + ret = "Added"; + else if (detail == VIR_DOMAIN_EVENT_DEFINED_UPDATED) + ret = "Updated"; + break; + case VIR_DOMAIN_EVENT_STARTED: + switch (detail) { + case VIR_DOMAIN_EVENT_STARTED_BOOTED: + ret = "Booted"; + break; + case VIR_DOMAIN_EVENT_STARTED_MIGRATED: + ret = "Migrated"; + break; + case VIR_DOMAIN_EVENT_STARTED_RESTORED: + ret = "Restored"; + break; + } + break; + case VIR_DOMAIN_EVENT_STOPPED: + switch (detail) { + case VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN: + ret = "Shutdown"; + break; + case VIR_DOMAIN_EVENT_STOPPED_DESTROYED: + ret = "Destroyed"; + break; + case VIR_DOMAIN_EVENT_STOPPED_CRASHED: + ret = "Crashed"; + break; + case VIR_DOMAIN_EVENT_STOPPED_MIGRATED: + ret = "Migrated"; + break; + case VIR_DOMAIN_EVENT_STOPPED_SAVED: + ret = "Failed"; + break; + case VIR_DOMAIN_EVENT_STOPPED_FAILED: + ret = "Failed"; + break; + } + break; } return ret; } @@ -91,20 +133,24 @@ int myDomainEventCallback1 (virConnectPt int myDomainEventCallback1 (virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int event, + int detail, void *opaque ATTRIBUTE_UNUSED) { - printf("%s EVENT: Domain %s(%d) %s\n", __FUNCTION__, virDomainGetName(dom), - virDomainGetID(dom), eventToString(event)); + printf("%s EVENT: Domain %s(%d) %s %s\n", __FUNCTION__, virDomainGetName(dom), + virDomainGetID(dom), eventToString(event), + eventDetailToString(event, detail)); return 0; } int myDomainEventCallback2 (virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int event, + int detail, void *opaque ATTRIBUTE_UNUSED) { - printf("%s EVENT: Domain %s(%d) %s\n", __FUNCTION__, virDomainGetName(dom), - virDomainGetID(dom), eventToString(event)); + printf("%s EVENT: Domain %s(%d) %s %s\n", __FUNCTION__, virDomainGetName(dom), + virDomainGetID(dom), eventToString(event), + eventDetailToString(event, detail)); return 0; } diff --git a/examples/domain-events/events-python/event-test.py b/examples/domain-events/events-python/event-test.py --- a/examples/domain-events/events-python/event-test.py +++ b/examples/domain-events/events-python/event-test.py @@ -32,11 +32,11 @@ def eventToString(event): "Restored" ); return eventStrings[event]; -def myDomainEventCallback1 (conn, dom, event, opaque): - print "myDomainEventCallback1 EVENT: Domain %s(%s) %s" % (dom.name(), dom.ID(), eventToString(event)) +def myDomainEventCallback1 (conn, dom, event, detail, opaque): + print "myDomainEventCallback1 EVENT: Domain %s(%s) %s %d" % (dom.name(), dom.ID(), eventToString(event), detail) -def myDomainEventCallback2 (conn, dom, event, opaque): - print "myDomainEventCallback2 EVENT: Domain %s(%s) %s" % (dom.name(), dom.ID(), eventToString(event)) +def myDomainEventCallback2 (conn, dom, event, detail, opaque): + print "myDomainEventCallback2 EVENT: Domain %s(%s) %s %d" % (dom.name(), dom.ID(), eventToString(event), detail) ##################################################### # EventImpl Functions diff --git a/include/libvirt/libvirt.h b/include/libvirt/libvirt.h --- a/include/libvirt/libvirt.h +++ b/include/libvirt/libvirt.h @@ -1004,21 +1004,41 @@ virDomainPtr virDomainCreateL * a virDomainEventType is emitted during domain lifecycle events */ typedef enum { - VIR_DOMAIN_EVENT_ADDED = 0, - VIR_DOMAIN_EVENT_REMOVED = 1, + VIR_DOMAIN_EVENT_DEFINED = 0, + VIR_DOMAIN_EVENT_UNDEFINED = 1, VIR_DOMAIN_EVENT_STARTED = 2, VIR_DOMAIN_EVENT_SUSPENDED = 3, VIR_DOMAIN_EVENT_RESUMED = 4, VIR_DOMAIN_EVENT_STOPPED = 5, - VIR_DOMAIN_EVENT_SAVED = 6, - VIR_DOMAIN_EVENT_RESTORED = 7, } virDomainEventType; + +typedef enum { + VIR_DOMAIN_EVENT_STARTED_BOOTED = 0, /* Normal startup from boot */ + VIR_DOMAIN_EVENT_STARTED_MIGRATED = 1, /* Incoming migration from another host */ + VIR_DOMAIN_EVENT_STARTED_RESTORED = 2, /* Restored from a state file */ +} virDomainEventStartedDetailType; + +typedef enum { + VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN = 0, /* Normal shutdown */ + VIR_DOMAIN_EVENT_STOPPED_DESTROYED = 1, /* Forced poweroff from host */ + VIR_DOMAIN_EVENT_STOPPED_CRASHED = 2, /* Guest crashed */ + VIR_DOMAIN_EVENT_STOPPED_MIGRATED = 3, /* Migrated off to another host */ + VIR_DOMAIN_EVENT_STOPPED_SAVED = 4, /* Saved to a state file */ + VIR_DOMAIN_EVENT_STOPPED_FAILED = 5, /* Host emulator/mgmt failed */ +} virDomainEventStoppedDetailType; + +typedef enum { + VIR_DOMAIN_EVENT_DEFINED_ADDED = 0, /* Newly created config file */ + VIR_DOMAIN_EVENT_DEFINED_UPDATED = 1, /* Changed config file */ +} virDomainEventDefinedDetailType; + /** * virConnectDomainEventCallback: * @conn: virConnect connection * @dom: The domain on which the event occured * @event: The specfic virDomainEventType which occured + * @detail: event specific detail information * @opaque: opaque user data * * A callback function to be registered, and called when a domain event occurs @@ -1026,6 +1046,7 @@ typedef int (*virConnectDomainEventCallb typedef int (*virConnectDomainEventCallback)(virConnectPtr conn, virDomainPtr dom, int event, + int detail, void *opaque); int virConnectDomainEventRegister(virConnectPtr conn, diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -1004,21 +1004,41 @@ virDomainPtr virDomainCreateL * a virDomainEventType is emitted during domain lifecycle events */ typedef enum { - VIR_DOMAIN_EVENT_ADDED = 0, - VIR_DOMAIN_EVENT_REMOVED = 1, + VIR_DOMAIN_EVENT_DEFINED = 0, + VIR_DOMAIN_EVENT_UNDEFINED = 1, VIR_DOMAIN_EVENT_STARTED = 2, VIR_DOMAIN_EVENT_SUSPENDED = 3, VIR_DOMAIN_EVENT_RESUMED = 4, VIR_DOMAIN_EVENT_STOPPED = 5, - VIR_DOMAIN_EVENT_SAVED = 6, - VIR_DOMAIN_EVENT_RESTORED = 7, } virDomainEventType; + +typedef enum { + VIR_DOMAIN_EVENT_STARTED_BOOTED = 0, /* Normal startup from boot */ + VIR_DOMAIN_EVENT_STARTED_MIGRATED = 1, /* Incoming migration from another host */ + VIR_DOMAIN_EVENT_STARTED_RESTORED = 2, /* Restored from a state file */ +} virDomainEventStartedDetailType; + +typedef enum { + VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN = 0, /* Normal shutdown */ + VIR_DOMAIN_EVENT_STOPPED_DESTROYED = 1, /* Forced poweroff from host */ + VIR_DOMAIN_EVENT_STOPPED_CRASHED = 2, /* Guest crashed */ + VIR_DOMAIN_EVENT_STOPPED_MIGRATED = 3, /* Migrated off to another host */ + VIR_DOMAIN_EVENT_STOPPED_SAVED = 4, /* Saved to a state file */ + VIR_DOMAIN_EVENT_STOPPED_FAILED = 5, /* Host emulator/mgmt failed */ +} virDomainEventStoppedDetailType; + +typedef enum { + VIR_DOMAIN_EVENT_DEFINED_ADDED = 0, /* Newly created config file */ + VIR_DOMAIN_EVENT_DEFINED_UPDATED = 1, /* Changed config file */ +} virDomainEventDefinedDetailType; + /** * virConnectDomainEventCallback: * @conn: virConnect connection * @dom: The domain on which the event occured * @event: The specfic virDomainEventType which occured + * @detail: event specific detail information * @opaque: opaque user data * * A callback function to be registered, and called when a domain event occurs @@ -1026,6 +1046,7 @@ typedef int (*virConnectDomainEventCallb typedef int (*virConnectDomainEventCallback)(virConnectPtr conn, virDomainPtr dom, int event, + int detail, void *opaque); int virConnectDomainEventRegister(virConnectPtr conn, diff --git a/python/libvir.c b/python/libvir.c --- a/python/libvir.c +++ b/python/libvir.c @@ -1538,6 +1538,7 @@ libvirt_virConnectDomainEventCallback(vi libvirt_virConnectDomainEventCallback(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int event, + int detail, void *opaque) { PyObject *pyobj_ret; @@ -1595,9 +1596,10 @@ libvirt_virConnectDomainEventCallback(vi /* Call the Callback Dispatcher */ pyobj_ret = PyObject_CallMethod(pyobj_conn_inst, (char*)"dispatchDomainEventCallbacks", - (char*)"Oi", + (char*)"Oii", pyobj_dom_inst, - event); + event, + detail); Py_DECREF(pyobj_dom_inst); diff --git a/qemud/qemud.h b/qemud/qemud.h --- a/qemud/qemud.h +++ b/qemud/qemud.h @@ -190,6 +190,7 @@ int remoteRelayDomainEvent (virConnectPt int remoteRelayDomainEvent (virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int event, + int detail, void *opaque); #endif diff --git a/qemud/remote.c b/qemud/remote.c --- a/qemud/remote.c +++ b/qemud/remote.c @@ -80,7 +80,8 @@ static void static void remoteDispatchDomainEventSend (struct qemud_client *client, virDomainPtr dom, - virDomainEventType event); + int event, + int detail); /* This function gets called from qemud when it detects an incoming * remote protocol message. At this point, client->buffer contains @@ -413,15 +414,16 @@ remoteDispatchError (struct qemud_client } int remoteRelayDomainEvent (virConnectPtr conn ATTRIBUTE_UNUSED, - virDomainPtr dom, - int event, - void *opaque) + virDomainPtr dom, + int event, + int detail, + void *opaque) { struct qemud_client *client = opaque; - REMOTE_DEBUG("Relaying domain event %d", event); + REMOTE_DEBUG("Relaying domain event %d %d", event, detail); if(client) { - remoteDispatchDomainEventSend (client, dom, event); + remoteDispatchDomainEventSend (client, dom, event, detail); qemudDispatchClientWrite(client->server,client); } return 0; @@ -3762,8 +3764,9 @@ remoteDispatchDomainEventsDeregister (st static void remoteDispatchDomainEventSend (struct qemud_client *client, - virDomainPtr dom, - virDomainEventType event) + virDomainPtr dom, + int event, + int detail) { remote_message_header rep; XDR xdr; @@ -3799,7 +3802,8 @@ remoteDispatchDomainEventSend (struct qe /* build return data */ make_nonnull_domain (&data.dom, dom); - data.event = (int) event; + data.event = event; + data.detail = detail; if (!xdr_remote_domain_event_ret(&xdr, &data)) { remoteDispatchError (client, NULL, "%s", _("serialise return struct")); diff --git a/qemud/remote_protocol.c b/qemud/remote_protocol.c --- a/qemud/remote_protocol.c +++ b/qemud/remote_protocol.c @@ -2024,6 +2024,8 @@ xdr_remote_domain_event_ret (XDR *xdrs, return FALSE; if (!xdr_int (xdrs, &objp->event)) return FALSE; + if (!xdr_int (xdrs, &objp->detail)) + return FALSE; return TRUE; } diff --git a/qemud/remote_protocol.h b/qemud/remote_protocol.h --- a/qemud/remote_protocol.h +++ b/qemud/remote_protocol.h @@ -1130,6 +1130,7 @@ struct remote_domain_event_ret { struct remote_domain_event_ret { remote_nonnull_domain dom; int event; + int detail; }; typedef struct remote_domain_event_ret remote_domain_event_ret; #define REMOTE_PROGRAM 0x20008086 diff --git a/qemud/remote_protocol.x b/qemud/remote_protocol.x --- a/qemud/remote_protocol.x +++ b/qemud/remote_protocol.x @@ -1007,6 +1007,7 @@ struct remote_domain_event_ret { struct remote_domain_event_ret { remote_nonnull_domain dom; int event; + int detail; }; /*----- Protocol. -----*/ diff --git a/src/domain_event.c b/src/domain_event.c --- a/src/domain_event.c +++ b/src/domain_event.c @@ -198,7 +198,8 @@ int int virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, virDomainPtr dom, - virDomainEventType event) + int event, + int detail) { virDomainEventPtr domEvent; @@ -214,6 +215,7 @@ virDomainEventCallbackQueuePush(virDomai } domEvent->dom = dom; domEvent->event = event; + domEvent->detail = detail; /* Make space on queue */ if (VIR_REALLOC_N(evtQueue->events, diff --git a/src/domain_event.h b/src/domain_event.h --- a/src/domain_event.h +++ b/src/domain_event.h @@ -58,7 +58,8 @@ int virDomainEventCallbackListRemove(vir */ struct _virDomainEvent { virDomainPtr dom; - virDomainEventType event; + int event; + int detail; }; typedef struct _virDomainEvent virDomainEvent; typedef virDomainEvent *virDomainEventPtr; @@ -72,7 +73,8 @@ typedef virDomainEventQueue *virDomainEv int virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, virDomainPtr dom, - virDomainEventType event); + int event, + int detail); virDomainEventPtr virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue); diff --git a/src/qemu_driver.c b/src/qemu_driver.c --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -107,7 +107,8 @@ static int qemudSetNonBlock(int fd) { static void qemudDomainEventDispatch (struct qemud_driver *driver, virDomainObjPtr vm, - virDomainEventType evt); + int event, + int detail); static void qemudDispatchVMEvent(int fd, int events, @@ -137,13 +138,19 @@ qemudAutostartConfigs(struct qemud_drive unsigned int i; for (i = 0 ; i < driver->domains.count ; i++) { - if (driver->domains.objs[i]->autostart && - !virDomainIsActive(driver->domains.objs[i]) && - qemudStartVMDaemon(NULL, driver, driver->domains.objs[i], NULL) < 0) { - virErrorPtr err = virGetLastError(); - qemudLog(QEMUD_ERR, _("Failed to autostart VM '%s': %s\n"), - driver->domains.objs[i]->def->name, - err ? err->message : NULL); + virDomainObjPtr vm = driver->domains.objs[i]; + if (vm->autostart && + !virDomainIsActive(vm)) { + int ret = qemudStartVMDaemon(NULL, driver, vm, NULL); + if (ret < 0) { + virErrorPtr err = virGetLastError(); + qemudLog(QEMUD_ERR, _("Failed to autostart VM '%s': %s\n"), + vm->def->name, + err ? err->message : NULL); + } else { + qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_STARTED, + VIR_DOMAIN_EVENT_STARTED_BOOTED); + } } } } @@ -945,7 +952,6 @@ static int qemudStartVMDaemon(virConnect qemudShutdownVMDaemon(conn, driver, vm); return -1; } - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_STARTED); } return ret; @@ -1030,6 +1036,9 @@ static int qemudDispatchVMLog(struct qem static int qemudDispatchVMLog(struct qemud_driver *driver, virDomainObjPtr vm, int fd) { if (qemudVMData(driver, vm, fd) < 0) { qemudShutdownVMDaemon(NULL, driver, vm); + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STOPPED, + VIR_DOMAIN_EVENT_STOPPED_FAILED); if (!vm->persistent) virDomainRemoveInactive(&driver->domains, vm); @@ -1040,7 +1049,9 @@ static int qemudDispatchVMFailure(struct static int qemudDispatchVMFailure(struct qemud_driver *driver, virDomainObjPtr vm, int fd ATTRIBUTE_UNUSED) { qemudShutdownVMDaemon(NULL, driver, vm); - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_STOPPED); + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STOPPED, + VIR_DOMAIN_EVENT_STOPPED_SHUTDOWN); if (!vm->persistent) virDomainRemoveInactive(&driver->domains, vm); @@ -1513,6 +1524,9 @@ static virDomainPtr qemudDomainCreate(vi vm); return NULL; } + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STARTED, + VIR_DOMAIN_EVENT_STARTED_BOOTED); dom = virGetDomain(conn, vm->def->name, vm->def->uuid); if (dom) dom->id = vm->def->id; @@ -1543,7 +1557,7 @@ static int qemudDomainSuspend(virDomainP } vm->state = VIR_DOMAIN_PAUSED; qemudDebug("Reply %s", info); - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_SUSPENDED); + qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_SUSPENDED, 0); VIR_FREE(info); return 0; } @@ -1572,7 +1586,7 @@ static int qemudDomainResume(virDomainPt } vm->state = VIR_DOMAIN_RUNNING; qemudDebug("Reply %s", info); - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_RESUMED); + qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_RESUMED, 0); VIR_FREE(info); return 0; } @@ -1611,7 +1625,9 @@ static int qemudDomainDestroy(virDomainP } qemudShutdownVMDaemon(dom->conn, driver, vm); - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_STOPPED); + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STOPPED, + VIR_DOMAIN_EVENT_STOPPED_DESTROYED); if (!vm->persistent) virDomainRemoveInactive(&driver->domains, vm); @@ -1942,10 +1958,12 @@ static int qemudDomainSave(virDomainPtr /* Shut it down */ qemudShutdownVMDaemon(dom->conn, driver, vm); + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STOPPED, + VIR_DOMAIN_EVENT_STOPPED_SAVED); if (!vm->persistent) virDomainRemoveInactive(&driver->domains, vm); - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_SAVED); return 0; } @@ -2240,6 +2258,10 @@ static int qemudDomainRestore(virConnect return -1; } + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STARTED, + VIR_DOMAIN_EVENT_STARTED_RESTORED); + /* If it was running before, resume it now. */ if (header.was_running) { char *info; @@ -2252,7 +2274,6 @@ static int qemudDomainRestore(virConnect vm->state = VIR_DOMAIN_RUNNING; } - qemudDomainEventDispatch(driver, vm, VIR_DOMAIN_EVENT_RESTORED); return 0; } @@ -2312,6 +2333,7 @@ static int qemudDomainStart(virDomainPtr static int qemudDomainStart(virDomainPtr dom) { struct qemud_driver *driver = (struct qemud_driver *)dom->conn->privateData; virDomainObjPtr vm = virDomainFindByUUID(&driver->domains, dom->uuid); + int ret; if (!vm) { qemudReportError(dom->conn, dom, NULL, VIR_ERR_INVALID_DOMAIN, @@ -2319,7 +2341,13 @@ static int qemudDomainStart(virDomainPtr return -1; } - return qemudStartVMDaemon(dom->conn, driver, vm, NULL); + ret = qemudStartVMDaemon(dom->conn, driver, vm, NULL); + if (ret < 0) + return ret; + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STARTED, + VIR_DOMAIN_EVENT_STARTED_BOOTED); + return 0; } @@ -3340,7 +3368,8 @@ qemudDomainEventDeregister (virConnectPt static void qemudDomainEventDispatch (struct qemud_driver *driver, virDomainObjPtr vm, - virDomainEventType evt) + int event, + int detail) { int i; virDomainEventCallbackListPtr cbList; @@ -3354,11 +3383,11 @@ static void qemudDomainEventDispatch (st vm->def->uuid); if (dom) { dom->id = virDomainIsActive(vm) ? vm->def->id : -1; - DEBUG("Dispatching callback %p %p event %d", - cbList->callbacks[i], - cbList->callbacks[i]->cb, evt); + DEBUG("Dispatching callback %p %p event %d detail %d", + cbList->callbacks[i], + cbList->callbacks[i]->cb, event, detail); cbList->callbacks[i]->cb(cbList->callbacks[i]->conn, - dom, evt, + dom, event, detail, cbList->callbacks[i]->opaque); virDomainFree(dom); } @@ -3507,6 +3536,9 @@ qemudDomainMigratePrepare2 (virConnectPt return -1; } + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STARTED, + VIR_DOMAIN_EVENT_STARTED_MIGRATED); return 0; } @@ -3578,6 +3610,9 @@ qemudDomainMigratePerform (virDomainPtr /* Clean up the source domain. */ qemudShutdownVMDaemon (dom->conn, driver, vm); + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STOPPED, + VIR_DOMAIN_EVENT_STOPPED_MIGRATED); if (!vm->persistent) virDomainRemoveInactive(&driver->domains, vm); @@ -3612,9 +3647,14 @@ qemudDomainMigrateFinish2 (virConnectPtr dom = virGetDomain (dconn, vm->def->name, vm->def->uuid); VIR_FREE(info); vm->state = VIR_DOMAIN_RUNNING; + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_RESUMED, 0); return dom; } else { qemudShutdownVMDaemon (dconn, driver, vm); + qemudDomainEventDispatch(driver, vm, + VIR_DOMAIN_EVENT_STOPPED, + VIR_DOMAIN_EVENT_STOPPED_FAILED); if (!vm->persistent) virDomainRemoveInactive(&driver->domains, vm); return NULL; diff --git a/src/remote_internal.c b/src/remote_internal.c --- a/src/remote_internal.c +++ b/src/remote_internal.c @@ -5154,7 +5154,7 @@ remoteRegister (void) */ static int remoteDomainReadEvent(virConnectPtr conn, XDR *xdr, - virDomainPtr *dom, int *event) + virDomainPtr *dom, int *event, int *detail) { remote_domain_event_ret ret; memset (&ret, 0, sizeof ret); @@ -5168,6 +5168,7 @@ remoteDomainReadEvent(virConnectPtr conn *dom = get_nonnull_domain(conn,ret.dom); *event = ret.event; + *detail = ret.detail; return 0; } @@ -5176,15 +5177,16 @@ remoteDomainProcessEvent(virConnectPtr c remoteDomainProcessEvent(virConnectPtr conn, XDR *xdr) { virDomainPtr dom; - int event,i; - struct private_data *priv = conn->privateData; - - if(!remoteDomainReadEvent(conn, xdr, &dom, &event)) { + int event, detail, i; + struct private_data *priv = conn->privateData; + + if(!remoteDomainReadEvent(conn, xdr, &dom, &event, &detail)) { DEBUG0("Calling domain event callbacks (no queue)"); for(i=0 ; i < priv->callbackList->count ; i++) { - if( priv->callbackList->callbacks[i] ) - priv->callbackList->callbacks[i]->cb(conn, dom, event, - priv->callbackList->callbacks[i]->opaque); + if (priv->callbackList->callbacks[i] ) + priv->callbackList->callbacks[i]->cb( + conn, dom, event, detail, + priv->callbackList->callbacks[i]->opaque); } } } @@ -5193,13 +5195,13 @@ remoteDomainQueueEvent(virConnectPtr con remoteDomainQueueEvent(virConnectPtr conn, XDR *xdr) { virDomainPtr dom; - int event; - struct private_data *priv = conn->privateData; - - if(!remoteDomainReadEvent(conn, xdr, &dom, &event)) + int event, detail; + struct private_data *priv = conn->privateData; + + if(!remoteDomainReadEvent(conn, xdr, &dom, &event, &detail)) { if( virDomainEventCallbackQueuePush(priv->domainEvents, - dom, event) < 0 ) { + dom, event, detail) < 0 ) { DEBUG("%s", "Error adding event to queue"); } } @@ -5292,6 +5294,7 @@ remoteDomainEventQueueFlush(int timer AT priv->callbackList->callbacks[i]->cb(domEvent->dom->conn, domEvent->dom, domEvent->event, + domEvent->detail, user_data); } } -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 6

[libvirt] PATCH: OpenVZ bridge support
by Daniel P. Berrange 17 Nov '08

17 Nov '08

This is an update of the patch http://www.redhat.com/archives/libvir-list/2008-October/msg00326.html To enable bridge support in the OpenVZ driver. As well as the fixes suggested last time, it includes an initial bit of HTML doc for the openvz driver, covering example XML, and the bridge configuration requirements Daniel diff -r 34eb1c9bdd7c docs/drvopenvz.html --- a/docs/drvopenvz.html Mon Nov 10 11:02:51 2008 +0000 +++ b/docs/drvopenvz.html Mon Nov 10 12:08:30 2008 +0000 @@ -122,6 +122,93 @@ </div> <div id="content"> <h1>OpenVZ container driver</h1> + <p> + The OpenVZ driver for libvirt allows use and management of container + based virtualization on a Linux host OS. Prior to using the OpenVZ + driver, the OpenVZ enabled kernel must be installed & booted, and the + OpenVZ userspace tools installed. The libvirt driver has been tested + with OpenVZ 3.0.22, but other 3.0.x versions should also work without + undue trouble. + </p> + <h2>Connections to OpenVZ driver</h2> + <p> + The libvirt OpenVZ driver is a single-instance privileged driver, + with a driver name of 'openvz'. Some example conection URIs for + the libvirt driver are: + </p> + <pre> + openvz:///system (local access) + openvz://example.com/system (remote access, TLS/x509) + openvz+tcp://example.com/system (remote access, SASl/Kerberos) + openvz+ssh://root@example.com/system (remote access, SSH tunnelled) + </pre> + <h2>Notes on bridged networking</h2> + <p> + Bridged networking enables a guest domain (ie container) to have its + network interface connected directly to the host's physical LAN. Before + this can be used there are a couple of configuration pre-requisites for + the host OS. + </p> + <h3>Host network devices</h3> + <p> + One or more of the physical devices must be attached to a bridge. The + process for this varies according to the operating system in use, so + for up to date notes consult the <a href="http://wiki.libvirt.org">Wiki</a> + or your operating system's networking documentation. The basic idea is + that the host OS should end up with a bridge device "br0" containing a + physical device "eth0", or a bonding device "bond0". + </p> + <h3>OpenVZ tools configuration</h3> + <p> + OpenVZ releases later than 3.0.23 ship with a standard network device + setup script that is able to setup bridging, named + <code>/usr/sbin/vznetaddbr</code>. For releases prior to 3.0.23, this + script must be created manually by the host OS adminstrator. The + simplest way is to just download the latest version of this script + from a newer OpenVZ release, or upstream source repository. Then + a generic configuration file <code>/etc/vz/vznetctl.conf</code> + must be created containing + </p> + <pre> +#!/bin/bash +EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr" + </pre> + <p> + The host OS is now ready to allow bridging of guest containers, which + will work whether the container is started with libvirt, or OpenVZ + tools. + </p> + <h2>Example guest domain XML configuration</h2> + <p> + The current libvirt OpenVZ driver has a restriction that the + domain names must match the OpenVZ container VEID, which by + convention start at 100, and are incremented from there. The + choice of OS template to use inside the container is determined + by the <code>filesystem</code> tag, and the template source name + matches the templates known to OpenVZ tools. + </p> + <pre> +<domain type='openvz' id='104'> + <name>104</name> + <uuid>86c12009-e591-a159-6e9f-91d18b85ef78</uuid> + <vcpu>3</vcpu> + <os> + <type>exe</type> + <init>/sbin/init</init> + </os> + <devices> + <filesystem type='template'> + <source name='fedora-9-i386-minimal'/> + <target dir='/'/> + </filesystem> + <interface type='bridge'> + <mac address='00:18:51:5b:ea:bf'/> + <source bridge='br0'/> + <target dev='veth101.0'/> + </interface> + </devices> +</domain> + </pre> </div> </div> <div id="footer"> diff -r 34eb1c9bdd7c docs/drvopenvz.html.in --- a/docs/drvopenvz.html.in Mon Nov 10 11:02:51 2008 +0000 +++ b/docs/drvopenvz.html.in Mon Nov 10 12:08:30 2008 +0000 @@ -1,5 +1,109 @@ -<html> +<html>  <body> <h1>OpenVZ container driver</h1> + + <p> + The OpenVZ driver for libvirt allows use and management of container + based virtualization on a Linux host OS. Prior to using the OpenVZ + driver, the OpenVZ enabled kernel must be installed & booted, and the + OpenVZ userspace tools installed. The libvirt driver has been tested + with OpenVZ 3.0.22, but other 3.0.x versions should also work without + undue trouble. + </p> + + <h2>Connections to OpenVZ driver</h2> + + <p> + The libvirt OpenVZ driver is a single-instance privileged driver, + with a driver name of 'openvz'. Some example conection URIs for + the libvirt driver are: + </p> + + <pre> + openvz:///system (local access) + openvz://example.com/system (remote access, TLS/x509) + openvz+tcp://example.com/system (remote access, SASl/Kerberos) + openvz+ssh://root@example.com/system (remote access, SSH tunnelled) + </pre> + + <h2>Notes on bridged networking</h2> + + <p> + Bridged networking enables a guest domain (ie container) to have its + network interface connected directly to the host's physical LAN. Before + this can be used there are a couple of configuration pre-requisites for + the host OS. + </p> + + <h3>Host network devices</h3> + + <p> + One or more of the physical devices must be attached to a bridge. The + process for this varies according to the operating system in use, so + for up to date notes consult the <a href="http://wiki.libvirt.org">Wiki</a> + or your operating system's networking documentation. The basic idea is + that the host OS should end up with a bridge device "br0" containing a + physical device "eth0", or a bonding device "bond0". + </p> + + <h3>OpenVZ tools configuration</h3> + + <p> + OpenVZ releases later than 3.0.23 ship with a standard network device + setup script that is able to setup bridging, named + <code>/usr/sbin/vznetaddbr</code>. For releases prior to 3.0.23, this + script must be created manually by the host OS adminstrator. The + simplest way is to just download the latest version of this script + from a newer OpenVZ release, or upstream source repository. Then + a generic configuration file <code>/etc/vz/vznetctl.conf</code> + must be created containing + </p> + + <pre> +#!/bin/bash +EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr" + </pre> + + <p> + The host OS is now ready to allow bridging of guest containers, which + will work whether the container is started with libvirt, or OpenVZ + tools. + </p> + + + <h2>Example guest domain XML configuration</h2> + + <p> + The current libvirt OpenVZ driver has a restriction that the + domain names must match the OpenVZ container VEID, which by + convention start at 100, and are incremented from there. The + choice of OS template to use inside the container is determined + by the <code>filesystem</code> tag, and the template source name + matches the templates known to OpenVZ tools. + </p> + + <pre> +<domain type='openvz' id='104'> + <name>104</name> + <uuid>86c12009-e591-a159-6e9f-91d18b85ef78</uuid> + <vcpu>3</vcpu> + <os> + <type>exe</type> + <init>/sbin/init</init> + </os> + <devices> + <filesystem type='template'> + <source name='fedora-9-i386-minimal'/> + <target dir='/'/> + </filesystem> + <interface type='bridge'> + <mac address='00:18:51:5b:ea:bf'/> + <source bridge='br0'/> + <target dev='veth101.0'/> + </interface> + </devices> +</domain> + </pre> + </body> </html> diff -r 34eb1c9bdd7c src/openvz_conf.c --- a/src/openvz_conf.c Mon Nov 10 11:02:51 2008 +0000 +++ b/src/openvz_conf.c Mon Nov 10 12:08:30 2008 +0000 @@ -51,7 +51,7 @@ static char *openvzLocateConfDir(void); static int openvzGetVPSUUID(int vpsid, char *uuidstr); -static int openvzLocateConfFile(int vpsid, char *conffile, int maxlen); +static int openvzLocateConfFile(int vpsid, char *conffile, int maxlen, const char *ext); static int openvzAssignUUIDs(void); int @@ -144,6 +144,8 @@ virCapsPtr openvzCapsInit(void) 0, 0)) == NULL) goto no_memory; + virCapabilitiesSetMacPrefix(caps, (unsigned char[]){ 0x52, 0x54, 0x00 }); + if ((guest = virCapabilitiesAddGuest(caps, "exe", utsname.machine, @@ -168,54 +170,6 @@ no_memory: return NULL; } - -/* function checks MAC address is empty - return 0 - empty - 1 - not -*/ -int openvzCheckEmptyMac(const unsigned char *mac) -{ - int i; - for (i = 0; i < VIR_MAC_BUFLEN; i++) - if (mac[i] != 0x00) - return 1; - - return 0; -} - -/* convert mac address to string - return pointer to string or NULL -*/ -char *openvzMacToString(const unsigned char *mac) -{ - char str[20]; - if (snprintf(str, 18, "%02X:%02X:%02X:%02X:%02X:%02X", - mac[0], mac[1], mac[2], - mac[3], mac[4], mac[5]) >= 18) - return NULL; - - return strdup(str); -} - -/*parse MAC from view: 00:18:51:8F:D9:F3 - return -1 - error - 0 - OK -*/ -static int openvzParseMac(const char *macaddr, unsigned char *mac) -{ - int ret; - ret = sscanf((const char *)macaddr, "%02X:%02X:%02X:%02X:%02X:%02X", - (unsigned int*)&mac[0], - (unsigned int*)&mac[1], - (unsigned int*)&mac[2], - (unsigned int*)&mac[3], - (unsigned int*)&mac[4], - (unsigned int*)&mac[5]) ; - if (ret == 6) - return 0; - - return -1; -} static int openvzReadNetworkConf(virConnectPtr conn, @@ -287,6 +241,9 @@ openvzReadNetworkConf(virConnectPtr conn while (*next != '\0' && *next != ',') next++; if (STRPREFIX(p, "ifname=")) { p += 7; + /* skip in libvirt */ + } else if (STRPREFIX(p, "host_ifname=")) { + p += 12; len = next - p; if (len > 16) { openvzError(conn, VIR_ERR_INTERNAL_ERROR, @@ -294,14 +251,25 @@ openvzReadNetworkConf(virConnectPtr conn goto error; } + if (VIR_ALLOC_N(net->ifname, len+1) < 0) + goto no_memory; + + strncpy(net->ifname, p, len); + net->ifname[len] = '\0'; + } else if (STRPREFIX(p, "bridge=")) { + p += 7; + len = next - p; + if (len > 16) { + openvzError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("Too long bridge device name")); + goto error; + } + if (VIR_ALLOC_N(net->data.bridge.brname, len+1) < 0) goto no_memory; strncpy(net->data.bridge.brname, p, len); net->data.bridge.brname[len] = '\0'; - } else if (STRPREFIX(p, "host_ifname=")) { - p += 12; - //skip in libvirt } else if (STRPREFIX(p, "mac=")) { p += 4; len = next - p; @@ -312,14 +280,11 @@ openvzReadNetworkConf(virConnectPtr conn } strncpy(cpy_temp, p, len); cpy_temp[len] = '\0'; - if (openvzParseMac(cpy_temp, net->mac)<0) { + if (virParseMacAddr(cpy_temp, net->mac) < 0) { openvzError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("Wrong MAC address")); goto error; } - } else if (STRPREFIX(p, "host_mac=")) { - p += 9; - //skip in libvirt } p = ++next; } while (p < token + strlen(token)); @@ -491,6 +456,68 @@ int openvzLoadDomains(struct openvz_driv return -1; } + +int +openvzWriteConfigParam(int vpsid, const char *param, const char *value) +{ + char conf_file[PATH_MAX]; + char temp_file[PATH_MAX]; + char line[PATH_MAX] ; + int fd, temp_fd; + + if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX, "conf")<0) + return -1; + if (openvzLocateConfFile(vpsid, temp_file, PATH_MAX, "tmp")<0) + return -1; + + fd = open(conf_file, O_RDONLY); + if (fd == -1) + return -1; + temp_fd = open(temp_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); + if (temp_fd == -1) { + close(fd); + return -1; + } + + while(1) { + if (openvz_readline(fd, line, sizeof(line)) <= 0) + break; + + if (!STRPREFIX(line, param) && + line[strlen(param)] == '=') { + if (safewrite(temp_fd, line, strlen(line)) != + strlen(line)) + goto error; + } + } + + if (safewrite(temp_fd, param, strlen(param)) < 0 || + safewrite(temp_fd, "=\"", 2) < 0 || + safewrite(temp_fd, value, strlen(value)) < 0 || + safewrite(temp_fd, "\"\n", 2) < 0) + goto error; + + if (close(fd) < 0) + goto error; + fd = -1; + if (close(temp_fd) < 0) + goto error; + temp_fd = -1; + + if (rename(temp_file, conf_file) < 0) + goto error; + + return 0; + +error: + if (fd != -1) + close(fd); + if (temp_fd != -1) + close(temp_fd); + unlink(temp_file); + return -1; +} + /* * Read parameter from container config * sample: 133, "OSTEMPLATE", value, 1024 @@ -508,7 +535,7 @@ openvzReadConfigParam(int vpsid ,const c char * sf, * token; char *saveptr = NULL; - if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX)<0) + if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX, "conf")<0) return -1; value[0] = 0; @@ -548,7 +575,7 @@ openvzReadConfigParam(int vpsid ,const c * 0 - OK */ static int -openvzLocateConfFile(int vpsid, char *conffile, int maxlen) +openvzLocateConfFile(int vpsid, char *conffile, int maxlen, const char *ext) { char * confdir; int ret = 0; @@ -557,7 +584,8 @@ openvzLocateConfFile(int vpsid, char *co if (confdir == NULL) return -1; - if (snprintf(conffile, maxlen, "%s/%d.conf", confdir, vpsid) >= maxlen) + if (snprintf(conffile, maxlen, "%s/%d.%s", + confdir, vpsid, ext ? ext : "conf") >= maxlen) ret = -1; VIR_FREE(confdir); @@ -614,7 +642,7 @@ openvzGetVPSUUID(int vpsid, char *uuidst char iden[1024]; int fd, ret; - if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX)<0) + if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX, "conf")<0) return -1; fd = open(conf_file, O_RDONLY); @@ -654,7 +682,7 @@ openvzSetDefinedUUID(int vpsid, unsigned if (uuid == NULL) return -1; - if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX)<0) + if (openvzLocateConfFile(vpsid, conf_file, PATH_MAX, "conf")<0) return -1; if (openvzGetVPSUUID(vpsid, uuidstr)) @@ -722,4 +750,3 @@ static int openvzAssignUUIDs(void) VIR_FREE(conf_dir); return 0; } - diff -r 34eb1c9bdd7c src/openvz_conf.h --- a/src/openvz_conf.h Mon Nov 10 11:02:51 2008 +0000 +++ b/src/openvz_conf.h Mon Nov 10 12:08:30 2008 +0000 @@ -50,6 +50,8 @@ enum { OPENVZ_WARN, OPENVZ_ERR }; #define VZLIST "/usr/sbin/vzlist" #define VZCTL "/usr/sbin/vzctl" +#define VZCTL_BRIDGE_MIN_VERSION ((3 * 1000 * 1000) + (0 * 1000) + 22 + 1) + struct openvz_driver { virCapsPtr caps; virDomainObjList domains; @@ -60,12 +62,11 @@ int openvzExtractVersion(virConnectPtr c int openvzExtractVersion(virConnectPtr conn, struct openvz_driver *driver); int openvzReadConfigParam(int vpsid ,const char * param, char *value, int maxlen); +int openvzWriteConfigParam(int vpsid, const char *param, const char *value); virCapsPtr openvzCapsInit(void); int openvzLoadDomains(struct openvz_driver *driver); void openvzFreeDriver(struct openvz_driver *driver); int strtoI(const char *str); -int openvzCheckEmptyMac(const unsigned char *mac); -char *openvzMacToString(const unsigned char *mac); int openvzSetDefinedUUID(int vpsid, unsigned char *uuid); #endif /* OPENVZ_CONF_H */ diff -r 34eb1c9bdd7c src/openvz_driver.c --- a/src/openvz_driver.c Mon Nov 10 11:02:51 2008 +0000 +++ b/src/openvz_driver.c Mon Nov 10 12:08:30 2008 +0000 @@ -55,6 +55,7 @@ #include "openvz_conf.h" #include "nodeinfo.h" #include "memory.h" +#include "bridge.h" #define OPENVZ_MAX_ARG 28 #define CMDBUF_LEN 1488 @@ -329,13 +330,56 @@ static int openvzDomainReboot(virDomainP return 0; } +static char * +openvzGenerateVethName(int veid, char *dev_name_ve) +{ + char dev_name[32]; + int ifNo = 0; + + if (sscanf(dev_name_ve, "%*[^0-9]%d", &ifNo) != 1) + return NULL; + if (snprintf(dev_name, sizeof(dev_name), "veth%d.%d", veid, ifNo) < 7) + return NULL; + return strdup(dev_name); +} + +static char * +openvzGenerateContainerVethName(int veid) +{ + int ret; + char temp[1024]; + + /* try to get line "^NETIF=..." from config */ + if ( (ret = openvzReadConfigParam(veid, "NETIF", temp, sizeof(temp))) <= 0) { + snprintf(temp, sizeof(temp), "eth0"); + } else { + char *s; + int max = 0; + + /* get maximum interface number (actually, it is the last one) */ + for (s=strtok(temp, ";"); s; s=strtok(NULL, ";")) { + int x; + + if (sscanf(s, "ifname=eth%d", &x) != 1) return NULL; + if (x > max) max = x; + } + + /* set new name */ + snprintf(temp, sizeof(temp), "eth%d", max+1); + } + return strdup(temp); +} + static int openvzDomainSetNetwork(virConnectPtr conn, const char *vpsid, - virDomainNetDefPtr net) + virDomainNetDefPtr net, + virBufferPtr configBuf) { int rc = 0, narg; const char *prog[OPENVZ_MAX_ARG]; - char *mac = NULL; + char macaddr[VIR_MAC_STRING_BUFLEN]; + struct openvz_driver *driver = (struct openvz_driver *) conn->privateData; + char *opt = NULL; #define ADD_ARG_LIT(thisarg) \ do { \ @@ -367,21 +411,61 @@ openvzDomainSetNetwork(virConnectPtr con ADD_ARG_LIT(vpsid); } - if (openvzCheckEmptyMac(net->mac) > 0) - mac = openvzMacToString(net->mac); - - if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE && - net->data.bridge.brname != NULL) { - char opt[1024]; + virFormatMacAddr(net->mac, macaddr); + + if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + virBuffer buf = VIR_BUFFER_INITIALIZER; + char *dev_name_ve; + int veid = strtoI(vpsid); + //--netif_add ifname[,mac,host_ifname,host_mac] ADD_ARG_LIT("--netif_add") ; - strncpy(opt, net->data.bridge.brname, 256); - if (mac != NULL) { - strcat(opt, ","); - strcat(opt, mac); - } + + /* generate interface name in ve and copy it to options */ + dev_name_ve = openvzGenerateContainerVethName(veid); + if (dev_name_ve == NULL) { + openvzError(conn, VIR_ERR_INTERNAL_ERROR, + _("Could not generate eth name for container")); + rc = -1; + goto exit; + } + + /* if user doesn't specified host interface name, + * than we need to generate it */ + if (net->ifname == NULL) { + net->ifname = openvzGenerateVethName(veid, dev_name_ve); + if (net->ifname == NULL) { + openvzError(conn, VIR_ERR_INTERNAL_ERROR, + _("Could not generate veth name")); + rc = -1; + VIR_FREE(dev_name_ve); + goto exit; + } + } + + virBufferAdd(&buf, dev_name_ve, -1); /* Guest dev */ + virBufferVSprintf(&buf, ",%s", macaddr); /* Guest dev mac */ + virBufferVSprintf(&buf, ",%s", net->ifname); /* Host dev */ + virBufferVSprintf(&buf, ",%s", macaddr); /* Host dev mac */ + + if (driver->version >= VZCTL_BRIDGE_MIN_VERSION) { + virBufferVSprintf(&buf, ",%s", net->data.bridge.brname); /* Host bridge */ + } else { + virBufferVSprintf(configBuf, "ifname=%s", dev_name_ve); + virBufferVSprintf(configBuf, ",mac=%s", macaddr); /* Guest dev mac */ + virBufferVSprintf(configBuf, ",host_ifname=%s", net->ifname); /* Host dev */ + virBufferVSprintf(configBuf, ",host_mac=%s", macaddr); /* Host dev mac */ + virBufferVSprintf(configBuf, ",bridge=%s", net->data.bridge.brname); /* Host bridge */ + } + + VIR_FREE(dev_name_ve); + + if (!(opt = virBufferContentAndReset(&buf))) + goto no_memory; + ADD_ARG_LIT(opt) ; - }else if (net->type == VIR_DOMAIN_NET_TYPE_ETHERNET && + VIR_FREE(opt); + } else if (net->type == VIR_DOMAIN_NET_TYPE_ETHERNET && net->data.ethernet.ipaddr != NULL) { //--ipadd ip ADD_ARG_LIT("--ipadd") ; @@ -402,18 +486,66 @@ openvzDomainSetNetwork(virConnectPtr con exit: cmdExecFree(prog); - VIR_FREE(mac); return rc; no_memory: + VIR_FREE(opt); openvzError(conn, VIR_ERR_INTERNAL_ERROR, _("Could not put argument to %s"), VZCTL); cmdExecFree(prog); - VIR_FREE(mac); return -1; #undef ADD_ARG_LIT } + + +static int +openvzDomainSetNetworkConfig(virConnectPtr conn, + virDomainDefPtr def) +{ + unsigned int i; + virBuffer buf = VIR_BUFFER_INITIALIZER; + char *param; + int first = 1; + struct openvz_driver *driver = (struct openvz_driver *) conn->privateData; + + for (i = 0 ; i < def->nnets ; i++) { + if (driver->version < VZCTL_BRIDGE_MIN_VERSION && + def->nets[i]->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + if (first) + first = 0; + else + virBufferAddLit(&buf, ";"); + } + + if (openvzDomainSetNetwork(conn, def->name, def->nets[i], &buf) < 0) { + openvzError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("Could not configure network")); + goto exit; + } + } + + if (driver->version < VZCTL_BRIDGE_MIN_VERSION && def->nnets) { + param = virBufferContentAndReset(&buf); + if (param) { + if (openvzWriteConfigParam(strtoI(def->name), "NETIF", param) < 0) { + VIR_FREE(param); + openvzError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("cannot replace NETIF config")); + return -1; + } + VIR_FREE(param); + } + } + + return 0; + +exit: + param = virBufferContentAndReset(&buf); + VIR_FREE(param); + return -1; +} + static virDomainPtr openvzDomainDefineXML(virConnectPtr conn, const char *xml) @@ -422,7 +554,6 @@ openvzDomainDefineXML(virConnectPtr conn virDomainDefPtr vmdef = NULL; virDomainObjPtr vm = NULL; virDomainPtr dom = NULL; - int i; const char *prog[OPENVZ_MAX_ARG]; prog[0] = NULL; @@ -468,17 +599,12 @@ openvzDomainDefineXML(virConnectPtr conn goto exit; } + if (openvzDomainSetNetworkConfig(conn, vmdef) < 0) + goto exit; + dom = virGetDomain(conn, vm->def->name, vm->def->uuid); if (dom) dom->id = -1; - - for (i = 0 ; i < vmdef->nnets ; i++) { - if (openvzDomainSetNetwork(conn, vmdef->name, vmdef->nets[i]) < 0) { - openvzError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("Could not configure network")); - goto exit; - } - } if (vmdef->vcpus > 0) { if (openvzDomainSetVcpus(dom, vmdef->vcpus) < 0) { @@ -500,7 +626,6 @@ openvzDomainCreateXML(virConnectPtr conn virDomainDefPtr vmdef = NULL; virDomainObjPtr vm = NULL; virDomainPtr dom = NULL; - int i; struct openvz_driver *driver = (struct openvz_driver *) conn->privateData; const char *progstart[] = {VZCTL, "--quiet", "start", NULL, NULL}; const char *progcreate[OPENVZ_MAX_ARG]; @@ -546,13 +671,8 @@ openvzDomainCreateXML(virConnectPtr conn goto exit; } - for (i = 0 ; i < vmdef->nnets ; i++) { - if (openvzDomainSetNetwork(conn, vmdef->name, vmdef->nets[i]) < 0) { - openvzError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("Could not configure network")); - goto exit; - } - } + if (openvzDomainSetNetworkConfig(conn, vmdef) < 0) + goto exit; progstart[3] = vmdef->name; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

4 5

[libvirt] [PATCH] Java bindings for domain events
by David Lively 15 Nov '08

15 Nov '08

The attached patch (against libvirt-java) contains Java bindings for the new domain event code. It works (see EventTest.java), but there's a certain amount of hokiness regarding the EventImpl stuff that I'd like to discuss. Unlike the C and Python interfaces, the Java interface does not currently allow the client to supply an EventImpl. The problem is that Java really has no way to interact with unix file descriptors so there's no reasonable way to implement a fd-watching EventImpl in pure Java (java.io.FileDescriptor doesn't do the trick since there's no way of constructing one from raw (int) unix fd)[**]. So for now, I've had the Java bindings register an EventImpl when the Connect class is loaded. This EventImpl is a Java class, with native methods implementing it. In fact, I've simply stolen (verbatim) the EventImpl from libvirt/qemud/events.c and made the native methods call it. [If we stick with this solution, it would obviously be better to somehow share this code with libvirtd rather than copy it.] The other tricky subject is multi-threading. For now, I've avoided it by exposing Connect.eventImpl.run_once() and forcing the client to call it from their "event loop". But the normal Java way of doing things would simply run the EventImpl in a separate thread. In fact, this EventImpl does implement Runnable, which makes it trivial to run in a separate thread -- but I don't declare that it implements Runnable yet because it's not safe to run in a thread while another thread might be making libvirt calls. It shouldn't be hard to make this thread-safe using Java synchronized methods and statements, but I haven't done that yet. Should I?? ** java.nio.Channel and friends seem to be the "right" interface for exposing abstract "selectable channels" in Java. It's just complicated enough that I've avoided it for now. But I can look into going this way for allowing Java to provide an EventImpl in the future .. Cheers, Dave

4 9

Re: >>: [libvirt] OpenVZ capabilites in LibVIRT
by Anton Protopopov 15 Nov '08

15 Nov '08

2008/11/15 Ivan Vovk <vovk.is(a)gmail.com> > Hi Anton, > > do i understand correctly that patch for OpenVZ bridge support was > committed? If so can it be obtained from CVS repository with a new snapshot? > Yes, it is commited in libvirt-0.4.6-alt2 that appear in Sisyphus on monday, or so. If you are interesting, you can see my git: http://git.altlinux.org/people/aspsk/packages/?p=libvirt.git;a=summary > > Then can you help me a bit again? After I got a new checkout with > > cvs -d :pserver:anoncvs@libvirt.org:2401/data/cvs co libvirt > > and tried to do a build, i got the following: > > [root@alt-03 libvirt]# ./autogen.sh --prefix=$HOME/usr > > You must have autopoint installed to compile libvirt. > Download the appropriate package for your distribution, > But was is 'autopoint'? I was not able to find it neither in ALT's > repository, not somewhere else ... =( > # apt-get install gettext-tools # man autopoint

1 0

[libvirt] [PATCH] Fix lv scanning with encrypted volumes
by Cole Robinson 14 Nov '08

14 Nov '08

See https://bugzilla.redhat.com/show_bug.cgi?id=470693 Using ':' as a delimiter for the lvs command isn't reliable, since it looks like encrypted volume groups have a colon in the physical device name, which throws of the regex. The attached patch changes the delimiter to ','. Maintains existing behavior for me, just waiting on confirmation from the reporter that this indeed does the job. Thanks, Cole

2 2

[libvirt] [RFC] making (newly public) EventImpl interface more consistent
by David Lively 14 Nov '08

14 Nov '08

Hi Folks - Since virEventRegisterImpl is now public (in libvirt.h), a nagging concern of mine has become more urgent. Essentially this callback gives clients a way of registering their own "handle (fd) watcher" and "timer" functionality for use by libvirt. What bugs me is the inconsistency between the handle-watcher and timer interfaces: the timer "add" function returns a timer id, which is then used to identify the timer to the "update" and "remove" functions. But the handle-watcher add / update / remove functions identify the watcher by the handle (fd). The semantics of registering the same handle twice aren't specified (what happens when we pass that same fd in a subsequent "update" or "remove"?). Even worse, this doesn't allow one to manage multiple watches on the same handle reasonably. So why not make the handle "add" function return a "watch id" (analogous to the "timer id" returned by the timer "add" fn)? And then use this watch id to specify the handle-watcher in the "update" and "remove" functions. This conveniently handles multiple watches on the same handle, and also makes the "handle-watching" interface more consistent with the "timer" interface (which is registered at the same time). We'd pass both the watch id and the handle (fd) into the watch-handler callback. I'd like to implement and submit this (along with fixups to the event test code) if there are no objections. Thanks, Dave P.S. I'm currently working on Java bindings to the new event code ...

4 15

[libvirt] [PATCH] avoid format string warnings
by Jim Meyering 14 Nov '08

14 Nov '08

>From f06595fb110e1e5a4c4f6ea8c729da3341f89ac4 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Fri, 14 Nov 2008 13:19:29 +0100 Subject: [PATCH] avoid format string warnings * src/openvz_driver.c (ADD_ARG_LIT): Add "%s" arg before _(...). * src/qemu_driver.c (PCI_ATTACH_OK_MSG): Likewise. * src/util.c (virExec, virRun): Likewise. --- src/openvz_driver.c | 4 ++-- src/qemu_driver.c | 2 +- src/util.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/src/openvz_driver.c b/src/openvz_driver.c index 48ffa13..95631ee 100644 --- a/src/openvz_driver.c +++ b/src/openvz_driver.c @@ -426,7 +426,7 @@ openvzDomainSetNetwork(virConnectPtr conn, const char *vpsid, dev_name_ve = openvzGenerateContainerVethName(veid); if (dev_name_ve == NULL) { openvzError(conn, VIR_ERR_INTERNAL_ERROR, - _("Could not generate eth name for container")); + "%s", _("Could not generate eth name for container")); rc = -1; goto exit; } @@ -437,7 +437,7 @@ openvzDomainSetNetwork(virConnectPtr conn, const char *vpsid, net->ifname = openvzGenerateVethName(veid, dev_name_ve); if (net->ifname == NULL) { openvzError(conn, VIR_ERR_INTERNAL_ERROR, - _("Could not generate veth name")); + "%s", _("Could not generate veth name")); rc = -1; VIR_FREE(dev_name_ve); goto exit; diff --git a/src/qemu_driver.c b/src/qemu_driver.c index 8291bfe..47167b7 100644 --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -2611,7 +2611,7 @@ static int qemudDomainAttachPciDiskDevice(virDomainPtr dom, virDomainDeviceDefPt s += strlen(PCI_ATTACH_OK_MSG); if (virStrToLong_i ((const char*)s, &dummy, 10, &dev->data.disk->slotnum) == -1) - qemudLog(QEMUD_WARN, _("Unable to parse slot number\n")); + qemudLog(QEMUD_WARN, "%s", _("Unable to parse slot number\n")); } else { qemudReportError (dom->conn, dom, NULL, VIR_ERR_OPERATION_FAILED, _("adding %s disk failed"), type); diff --git a/src/util.c b/src/util.c index 6141847..9b1c5f4 100644 --- a/src/util.c +++ b/src/util.c @@ -406,7 +406,7 @@ virExec(virConnectPtr conn, char *argv_str; if ((argv_str = virArgvToString(argv)) == NULL) { - ReportError(conn, VIR_ERR_NO_MEMORY, _("command debug string")); + ReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("command debug string")); return -1; } DEBUG0(argv_str); @@ -523,7 +523,7 @@ virRun(virConnectPtr conn, char *argv_str = NULL; if ((argv_str = virArgvToString(argv)) == NULL) { - ReportError(conn, VIR_ERR_NO_MEMORY, _("command debug string")); + ReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("command debug string")); goto error; } DEBUG0(argv_str); -- 1.6.0.4.911.gc990

2 2

[libvirt] RFC: Add a 'reason' argument for domain events ?
by Daniel P. Berrange 14 Nov '08

14 Nov '08

We currently have a set of domain lifecycle events VIR_DOMAIN_EVENT_ADDED = 0, VIR_DOMAIN_EVENT_REMOVED = 1, VIR_DOMAIN_EVENT_STARTED = 2, VIR_DOMAIN_EVENT_SUSPENDED = 3, VIR_DOMAIN_EVENT_RESUMED = 4, VIR_DOMAIN_EVENT_STOPPED = 5, VIR_DOMAIN_EVENT_SAVED = 6, VIR_DOMAIN_EVENT_RESTORED = 7, And a couple more I proposed last week to allow distinguishing of new domains which are transient vs persistent VIR_DOMAIN_EVENT_DEFINED = 8, VIR_DOMAIN_EVENT_UNDEFINED = 9, Previously Stefan has suggested we should consider having an event for migration, and though I rejected that at the time, I'm now inclined to agree that this info would be useful here. I'm also thinking I'd like to have more information about STOPPED & STARTED events in general. eg, there are a number of reasons why an domain may have started - explicitly booted on the host - restored from a saved image - incoming migration operation and there are a number of reasons why a domain might have stopped - forcably destroyed by host admin - shutdown by host admin - shutdown by guest admin - host emulator process crashed - killed by mgmt after host emulation hung - migrated to another host - saved to a memory image We have explicit events for the SAVED/RESTORED reasons, but what should we do about the other reasons ? One option is to add alot more events VIR_DOMAIN_MIGRATED_IN (migrated to another node) VIR_DOMAIN_MIGRATED_OUT (migrated from another node) VIR_DOMAIN_SHUTDOWN (graceful shutdown by host admin) VIR_DOMAIN_DESTROYED (force destroyed by host admin) VIR_DOMAIN_CRASHED (guest kernel crashed) VIR_DOMAIN_HUNG (host emulator hung) leaving STOPPED to just be a generic stop event, with no particular reason. The downside with this, is if an application just wants to know about whether a domain shutdown, not why, then they have to track lots and lots of events. Also, not every driver would be able to provide all of these events, so would often have to fallback on a generic STOPPED event So one alternative is to provide a generic 'char * reason' with each event with provides scope on the cause of the lifecycle operation. So you'd get VIR_DOMAIN_STOPPED ("crashed", "shutdown", "destroyed", "quit", "hung", "migrated", "saved") VIR_DOMAIN_STARTED ("booted", "migrated", "restored") nb, we could remove the explicit SAVED and RESTORED events in this style. With such a 'reason' arg, we could possibly avoid adding the DEFINED and UNDEFINED events I suggested. Instead, adding a reason for ADDED and REMOVED events, VIR_DOMAIN_ADDED ("started", "defined") VIR_DOMAIN_REMOVED ("shutdown", "undefined") which lets you distinguish transient from persistent domains. The downside of this though, is that we can't explicitly track when a configuration file is 're-defined', eg adding a config file for an existing running guest. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 3

[libvirt] [PATCH]: Implement Qemu/KVM live migration
by Chris Lalancette 14 Nov '08

14 Nov '08

All, Attached is a patch to implement Qemu/KVM live migration in libvirt. Now that upstream Qemu has settled on an interface that is friendly to libvirt (i.e. one that doesn't block the monitor on -incoming), we can implement it here. Note that the bulk of this patch was written by Rich Jones quite a while ago. My hand in it has mostly been to forward port it to current libvirt CVS, tweak it for the new Qemu style, and test it out with a recent KVM (kvm-78, in particular). Note that there is a FIXME in the code. When testing this out with kvm-78, I found that if I let the source side kill the source VM immediately after the "migrate" monitor command completed, the migration to the destination would never complete. This seems to be a bug in Qemu; the migrate monitor command shouldn't return until the migrate is really, truly complete. I'm posting this now so I can get reviews, and start to address review comments while I try to figure out what's going on with Qemu. With my temporary hack of the sleep() call in there, though, I was able to successfully live migrate an F-9 guest between two machines. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

3 4

[libvirt] [PATCH] add the check whether the domain has already used a disk which attach
by S.Sakamoto 14 Nov '08

14 Nov '08

Hi, "attach-disk" does not give an error, when the domain which is attached has already used the source which attach. This has danger of the data corruption. I make the patch to add the check of this. This patch outputs an error, when the domain which is attached has already used the source which attach. Thanks, Shigeki Sakamoto. Index: src/virsh.c =================================================================== RCS file: /data/cvs/libvirt/src/virsh.c,v retrieving revision 1.170 diff -u -p -r1.170 virsh.c --- src/virsh.c 13 Oct 2008 16:46:29 -0000 1.170 +++ src/virsh.c 4 Nov 2008 07:28:20 -0000 @@ -4993,6 +4993,11 @@ cmdAttachDisk(vshControl *ctl, const vsh char *source, *target, *driver, *subdriver, *type, *mode; int isFile = 0, ret = FALSE; char *buf = NULL, *tmp = NULL; + xmlDocPtr xml = NULL; + xmlXPathObjectPtr obj = NULL; + xmlXPathContextPtr ctxt = NULL; + char *doc; + char xpath[PATH_MAX]; if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) goto cleanup; @@ -5034,6 +5039,35 @@ cmdAttachDisk(vshControl *ctl, const vsh } } + if (source) { + doc = virDomainGetXMLDesc(dom, 0); + if (!doc) + goto cleanup; + + xml = xmlReadDoc((const xmlChar *) doc, "domain.xml", NULL, + XML_PARSE_NOENT | XML_PARSE_NONET | + XML_PARSE_NOWARNING); + free(doc); + if (!xml) + goto cleanup; + ctxt = xmlXPathNewContext(xml); + if (!ctxt) + goto cleanup; + + sprintf(xpath, "string(/domain/devices/disk/source[@dev='%s']/@dev)", source); + obj = xmlXPathEval(BAD_CAST xpath, ctxt); + if (!strcmp(obj->stringval, source)) { + vshError(ctl, FALSE, _("Disk %s is already in use by own guest"), source); + goto cleanup; + } + sprintf(xpath, "string(/domain/devices/disk/source[@file='%s']/@file)", source); + obj = xmlXPathEval(BAD_CAST xpath, ctxt); + if (!strcmp(obj->stringval, source)) { + vshError(ctl, FALSE, _("Disk %s is already in use by own guest"), source); + goto cleanup; + } + } + /* Make XML of disk */ tmp = vshMalloc(ctl, 1); if (!tmp) goto cleanup; @@ -5123,6 +5157,10 @@ cmdAttachDisk(vshControl *ctl, const vsh ret = TRUE; cleanup: + xmlXPathFreeObject(obj); + xmlXPathFreeContext(ctxt); + if (xml) + xmlFreeDoc(xml); if (dom) virDomainFree(dom); free(buf);

3 6

[libvirt] [PATCH] Register storage backends in test driver
by Cole Robinson 12 Nov '08

12 Nov '08

The refactored storage backend registering broke the test driver. The attached patch makes everything work again by explicitly registering the backends on driver startup. Thanks, Cole diff --git a/src/test.c b/src/test.c index 30dc52a..a785f04 100644 --- a/src/test.c +++ b/src/test.c @@ -43,6 +43,11 @@ #include "network_conf.h" #include "domain_conf.h" #include "storage_conf.h" +#include "storage_backend.h" +#include "storage_backend_logical.h" +#include "storage_backend_iscsi.h" +#include "storage_backend_disk.h" +#include "storage_backend_fs.h" #include "xml.h" #define MAX_CPUS 128 @@ -663,6 +668,17 @@ static int testOpen(virConnectPtr conn, return VIR_DRV_OPEN_ERROR; } + if (virStorageBackendRegister(&virStorageBackendDirectory) < 0 || + virStorageBackendRegister(&virStorageBackendFileSystem) < 0 || + virStorageBackendRegister(&virStorageBackendNetFileSystem) < 0 || + virStorageBackendRegister(&virStorageBackendLogical) < 0 || + virStorageBackendRegister(&virStorageBackendISCSI) < 0 || + virStorageBackendRegister(&virStorageBackendDisk) < 0) { + testError(NULL, VIR_ERR_INTERNAL_ERROR, + _("Failed to register storage backends.")); + return VIR_DRV_OPEN_DECLINED; + } + if (STREQ(uri->path, "/default")) ret = testOpenDefault(conn); else

2 1

[libvirt] [PATCH] 0/7 host ("node") device enumeration - completed submission
by David Lively 12 Nov '08

12 Nov '08

Since the version of this I posted last week still had some outstaning TODO items that I have since finished, I'm re-submitting the whole thing. I consider this a "complete submission" since I don't think it's necessary to implement any additional functionality to make this acceptable. (The two remaining unimplemented items are virNodeDeviceCreate / Destroy and a real Devkit impl, neither of which needs to be done immediately, for reasons discussed earlier.) These patches implement the node device enumeration functionality, as discussed here: https://www.redhat.com/archives/libvir-list/2008-September/msg00398.html I've broken it into the following pieces: 1-public-api additions to the public API 2-internal-api additions to the internal API 3-local-node-drivers the HAL & DeviceKit implementations 4-remote-node-driver the remote driver 5-virsh-support virsh support 6-python-bindings python bindings 7-java-bindings Java bindings (for libvirt-java) Dave

3 12

Re: >>: [libvirt] OpenVZ capabilites in LibVIRT
by Ivan Vovk 11 Nov '08

11 Nov '08

Hi, Anton. > You can specify an IP address and a netmask like this: >> http://libvirt.org/formatnetwork.html#elementsAddress >> Such bridge will be automatically set up. >> > - thanks for the hint. I assigned 0.0.0.0 as I don't need IP on bridges at the moment. > 2) there is a default network "Default" with enabled 'Autostart'. Is >>> there any way to remove this network completely? >>> >> Yes, >> # virsh net-destroy defaul >> > correct answer is > # virsh net-undefine default > - you were correct in both cases: you can't undefine active network so it should be destroyed and after that undefine. So it worked! > Short answer: it doesn't work now. Wait for nex libvirt release > (libvirt-4.6-alt2). I will try to make it as soon as possible. > For details see > http://www.redhat.com/archives/libvir-list/2008-October/msg00323.html > - yeah, i've already read that thread and known it was a bug. Just needed a confirmation that it was going to be fixed in next release. So may be my question will be a bit indelicate, but is there a hope to see this release by the end of november? > 5) Is there any way to destroy domain completely like it can be done via >> 'vzctl destroy <ID>'? >> > Yes, > # virsh destroy <domain-name> > >> And here too, if domain was previously defined, command must be: > # virsh undefine <domain-name> > - got the idea. And noticed the following: virsh # define ovz.xml Domain 3005 defined from ovz.xml virsh # start 3005 Domain 3005 started virsh # shutdown 3005 Domain 3005 is being shutdown virsh # undefine 3005 libvir: OpenVZ error : Domain not found Domain 3005 has been undefined It really removes domain from file system, but why does it throw that error message? 6) Where does libvirt store info about already created domains? I can't >> create a new domain with ID 3005 after I completely destroy previous one via >> 'vzctl destroy 3005'. >> > And what does it saying? > - if i simply destroy domain via vzctl (without undefining it via virsh): [root@alt-03 ~]# vzctl destroy 3005 Destroying container private area: /var/lib/vz/private/3005 Container private area was destroyed - and then try to create another one (this time via virsh) virsh # create ovz.xml libvir: OpenVZ error : operation failed: Already an OPENVZ VM defined with the id '3005' error: Failed to create domain from ovz.xml It seems domain is still defined from LibVirt's point of view but actually it doesn't exist any more. It was removed via native OpenVZ tool. In case I try to undefine it: virsh # undefine 3005 libvir: OpenVZ error : Domain not found libvir: error : vzctl exited with non-zero status 14 and signal 0 libvir: OpenVZ error : internal error Could not exec vzctl error: Failed to undefine domain 3005 And from this moment it is imposible to create domain with ID 3005. So how can I obtain a list of already defined domains? And how can it be purged? 7) Is there any way to publish domain's console on a host system so that I > can connect via telnet to HW node on some TCP/4567 and get into domain's > console? > vzctl enter <domain ID> > - yeah, that for sure is true wheh you are on HW node itself. But I need to organize access into domain's consoles from remote mashines. In my case there is no network connectivity between real lan and domains. I believed, this XML definition could help me: http://libvirt.org/formatdomain.html#elementsCharTCP - "*The character device acts as a TCP client connecting to a remote server, or as a server waiting for a client connection*", so when you connect to HW node on some TCP port you get into domain's console. But it seems I got it in a wrong way because is didn't work in case of OpenVZ. P.S. You can ask ALT-specific questions to me directly. > - thanks, will keep that in mind. ___________ Best regards, Ivan V.

3 2

[libvirt] Weird permissions error
by Darryl Pierce 11 Nov '08

11 Nov '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I have a startup script that runs a second script to do some work on the system. This second script calls: virsh -c qemu:///system --readonly nodeinfo and then scrapes from that the amount of free memory. When I run this from my init script, I get: libvir: Remote error : unable to connect to '/var/run/libvirt/libvirt-sock-ro': Permission denied But if I run the second script itself directly (outside of the init script) it works correctly. Any ideas? - -- Darryl L. Pierce <dpierce(a)redhat.com> : GPG KEYID: 6C4E7F1B -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkkYsEEACgkQjaT4DmxOfxuwzACgzYNQ7ku5P0YGr4jdHaDzf6Pq MicAoJ5nB7e+TSwE2Vfd9YrCgiahKXwo =01FA -----END PGP SIGNATURE-----

2 1

[libvirt] OpenVZ capabilites in LibVIRT
by Anton Protopopov 10 Nov '08

10 Nov '08

Hi! > > I faced with several difficulties / misunderstandings and I hope someone > could clarify me (at the moment I use 'virsh' for testing). > > 1) after creating network via 'virsh # net-create network.xml' i get vzbr0 > bridge in down state and have to make ip up manually. Is there any way to > automatically make it up? > You can specify an IP address and a netmask like this: http://libvirt.org/formatnetwork.html#elementsAddress Such bridge will be automatically set up. > 2) there is a default network "Default" with enabled 'Autostart'. Is there > any way to remove this network completely? > Yes, # virsh net-destroy defaul > 3) after creating domain via 'virsh # create ovz.xml' i get a new > container, but it doesn't work as it should do: > - at first, it has 'vzbr0' veth interface inside and its pair on a HW node > is added into default bridge vmbr0. I believed tag <source bridge='vzbr0'/> > should point to a bridge name on a HW node, but instead it created veth > interface with such name. In openvz config file for created domain i see > this: > [root@alt-03 ~]# cat /etc/vz/conf/3005.conf | grep NETIF > > NETIF="ifname=vzbr0,mac=52:54:00:35:10:6D,host_ifname=veth3005.0,host_mac=52:54:00:35:10:6D" > Short answer: it doesn't work now. Wait for nex libvirt release (libvirt-4.6-alt2). I will try to make it as soon as possible. For details see http://www.redhat.com/archives/libvir-list/2008-October/msg00323.html > 4) Is there any way to specify config file for created domain like it can > be done via 'vzctl create <ID> --oostemplate <templname> --config > <confname>'? > No > 5) Is there any way to destroy domain completely like it can be done via > 'vzctl destroy <ID>'? > Yes, # virsh destroy <domain-name> > 6) Where does libvirt store info about already created domains? I can't > create a new domain with ID 3005 after I completely destroy previous one via > 'vzctl destroy 3005'. > And what does it saying? 7) Is there any way to publish domain's console on a host system so that I > can connect via telnet to HW node on some TCP/4567 and get into domain's > console? > vzctl enter <domain ID> > 8) Does libvirt use some OpenVZ bindings or simply executes vzctl and other > stuff? > simply executes vzctl and reading/writing <veid>.conf P.S. You can ask ALT-specific questions to me directly.

2 2

[libvirt] OpenVZ capabilites in LibVIRT
by Ivan Vovk 09 Nov '08

09 Nov '08

Hello! I'm trying to link OpenVZ with LibVirt in my test environment. There are: [root@alt-03 /]# uname -r 2.6.18-ovz-smp-alt23.M40.3 [root@alt-03 /]# vzctl --version vzctl version 3.0.23 [root@alt-03 /]# rpm -qa | grep libvirt libvirt-0.4.6-alt1 libvirt-python-0.4.6-alt1 libvirt-devel-0.4.6-alt1 The task is to create several isolate virtual networks with several domains inside, like: ve-01 --- vzrb0 -- ve-02 | | ve-03 ve-11 --- vzbr1 -- ve-12 | | ve-13 and so on ... Here is XML definition for 1st network: <network> <name>Private</name> <bridge name="vzbr0" stp='off' forwardDelay='0'/> </network> and the following one for 1st domain: <domain type="openvz" id="3005"> <name>3005</name> <memory>131072</memory> <currentMemory>131072</currentMemory> <vcpu>1</vcpu> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <os> <type>exe</type> </os> <devices> <filesystem type="template"> <source name="altlinux-4.0"/> <target dir="/"/> <quota type="size" max="10000"/> <quota type="inodes" max="200000"/> </filesystem> <interface type='bridge'> <source bridge='vzbr0'/> </interface> </devices> </domain> I faced with several difficulties / misunderstandings and I hope someone could clarify me (at the moment I use 'virsh' for testing). 1) after creating network via 'virsh # net-create network.xml' i get vzbr0 bridge in down state and have to make ip up manually. Is there any way to automatically make it up? 2) there is a default network "Default" with enabled 'Autostart'. Is there any way to remove this network completely? 3) after creating domain via 'virsh # create ovz.xml' i get a new container, but it doesn't work as it should do: - at first, it has 'vzbr0' veth interface inside and its pair on a HW node is added into default bridge vmbr0. I believed tag <source bridge='vzbr0'/> should point to a bridge name on a HW node, but instead it created veth interface with such name. In openvz config file for created domain i see this: [root@alt-03 ~]# cat /etc/vz/conf/3005.conf | grep NETIF NETIF="ifname=vzbr0,mac=52:54:00:35:10:6D,host_ifname=veth3005.0,host_mac=52:54:00:35:10:6D" There is no any info about bridge. So by default veth3005.0 links with vmbr0. - secondly, if you look at that NETIF string, you will see, that 'host_mac' is equal to 'mac'. Because of this two domains cannot contact with each other via the same bridge. Is there any way to point veth interfaces to correct bridge, assign them corrects macs and names? 4) Is there any way to specify config file for created domain like it can be done via 'vzctl create <ID> --oostemplate <templname> --config <confname>'? 5) Is there any way to destroy domain completely like it can be done via 'vzctl destroy <ID>'? 6) Where does libvirt store info about already created domains? I can't create a new domain with ID 3005 after I completely destroy previous one via 'vzctl destroy 3005'. 7) Is there any way to publish domain's console on a host system so that I can connect via telnet to HW node on some TCP/4567 and get into domain's console? 8) Does libvirt use some OpenVZ bindings or simply executes vzctl and other stuff? Thanks in advance! ________________________________ This message (including attachments) is private and confidential. If you have received this message in error, please notify us and remove it from your system.

1 0

[libvirt] [PATCH] always compile iptables.c
by Jim Meyering 07 Nov '08

07 Nov '08

This is slightly different from the previous version. The new part is the addition of the virRun stub to prevent a mingw link failure when building with shared libraries. Now, configured like this, it builds without error: /usr/bin/mingw32-configure --without-sasl --without-avahi \ --without-polkit --without-python --without-xen --without-qemu \ --without-lxc --without-openvz --without-libvirtd \ --prefix=/tmp/libvirt-inst --enable-compile-warnings=maximum >From 0b35049f3cd10dbfd650aae692c553e940409805 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 6 Nov 2008 08:42:33 +0100 Subject: [PATCH 1/3] always compile iptables.c Avoid a build error when configuring --without-xen --without-qemu. * src/iptables.c [WITH_QEMU]: Don't #ifdef-out. * src/iptables.h [WITH_QEMU]: Don't #ifdef-out. * src/util.c (virRun) [__MINGW32__]: Define a stub that always fails. --- src/iptables.c | 4 ---- src/iptables.h | 6 +----- src/util.c | 12 ++++++++++++ 3 files changed, 13 insertions(+), 9 deletions(-) diff --git a/src/iptables.c b/src/iptables.c index 53e0f41..ad7fddf 100644 --- a/src/iptables.c +++ b/src/iptables.c @@ -21,8 +21,6 @@ #include <config.h> -#if WITH_QEMU - #include <stdio.h> #include <stdlib.h> #include <stdarg.h> @@ -1120,5 +1118,3 @@ iptablesRemoveForwardMasquerade(iptablesContext *ctx, { return iptablesForwardMasquerade(ctx, network, physdev, REMOVE); } - -#endif /* WITH_QEMU */ diff --git a/src/iptables.h b/src/iptables.h index 95f07de..fbe9b5d 100644 --- a/src/iptables.h +++ b/src/iptables.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2007 Red Hat, Inc. + * Copyright (C) 2007, 2008 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -22,8 +22,6 @@ #ifndef __QEMUD_IPTABLES_H__ #define __QEMUD_IPTABLES_H__ -#if WITH_QEMU - typedef struct _iptablesContext iptablesContext; iptablesContext *iptablesContextNew (void); @@ -95,6 +93,4 @@ int iptablesRemoveForwardMasquerade (iptablesContext *ctx, const char *network, const char *physdev); -#endif /* WITH_QEMU */ - #endif /* __QEMUD_IPTABLES_H__ */ diff --git a/src/util.c b/src/util.c index abc86d6..6141847 100644 --- a/src/util.c +++ b/src/util.c @@ -580,6 +580,18 @@ virRun(virConnectPtr conn, #else /* __MINGW32__ */ int +virRun(virConnectPtr conn, + const char *const *argv ATTRIBUTE_UNUSED, + int *status) +{ + if (status) + *status = ENOTSUP; + else + ReportError (conn, VIR_ERR_INTERNAL_ERROR, __FUNCTION__); + return -1; +} + +int virExec(virConnectPtr conn, const char *const*argv ATTRIBUTE_UNUSED, const char *const*envp ATTRIBUTE_UNUSED, -- 1.6.0.3.756.gb776d

2 3

[libvirt] PATCH: Misc fixes to events code
by Daniel P. Berrange 07 Nov '08

07 Nov '08

I'm trying out the new events code with virt-manager and stumbled on some minor bugs - The python binding forgot to call LIBVIRT_BEGIN_ALLOW_THREADS, LIBVIRT_END_ALLOW_THREADS, LIBVIRT_ENSURE_THREAD_STATE or LIBVIRT_RELEASE_THREAD_STATE which meant virt-manager crashed and burned in a heap of python interpretor state corruption [1] - The API docs extracted assumes that enums without explicit value assignements started from 1 instead of 0. This caused an off-by-1 error for all the VIR_DOMAIN_EVENT_* constants in the generated python code. I briefly toyed with fixing docs/apibuild.py enum handling but then instead decided to just change libvirt.h to give explicit values. With these two fixes and some hacks to virt-manager, I've got the events triggering display state refreshes. A couple more things I've not fixed but are on the todo list - THe QEMU driver doesn't emit the ADDED or REMOVED events for VMs which virt-manager requires in order to fully avoid polling. - The VIR_EVENT_* constants aren't included in python, because the API docs can't cope with enum value asignments looking like (1 << 0) (ie fails to parse the left-shifts) Regards, Daniel [1] FYI, i'm using the libvirt-glib python binding in virt-manager http://libvirt.org/hg/libvirt-glib/ which is slightly bad too by not doing glib thread locking calls, but we're lucky because libvirt.so doesn't invoke any glib calls itself from the event callback context. Index: python/libvir.c =================================================================== RCS file: /data/cvs/libvirt/python/libvir.c,v retrieving revision 1.43 diff -u -p -r1.43 libvir.c --- python/libvir.c 31 Oct 2008 10:13:45 -0000 1.43 +++ python/libvir.c 4 Nov 2008 19:45:42 -0000 @@ -1537,29 +1537,33 @@ libvirt_virConnectDomainEventCallback(vi PyObject *pyobj_ret; PyObject *pyobj_conn_inst = (PyObject*)opaque; - PyObject *pyobj_dom = libvirt_virDomainPtrWrap(dom); + PyObject *pyobj_dom; PyObject *pyobj_dom_args; PyObject *pyobj_dom_inst; PyObject *dom_class; + int ret = -1; + + LIBVIRT_ENSURE_THREAD_STATE; /* Create a python instance of this virDomainPtr */ + pyobj_dom = libvirt_virDomainPtrWrap(dom); pyobj_dom_args = PyTuple_New(2); if(PyTuple_SetItem(pyobj_dom_args, 0, pyobj_conn_inst)!=0) { printf("%s error creating tuple",__FUNCTION__); - return -1; + goto cleanup; } if(PyTuple_SetItem(pyobj_dom_args, 1, pyobj_dom)!=0) { printf("%s error creating tuple",__FUNCTION__); - return -1; + goto cleanup; } Py_INCREF(pyobj_conn_inst); dom_class = getLibvirtDomainClassObject(); if(!PyClass_Check(dom_class)) { printf("%s dom_class is not a class!\n", __FUNCTION__); - return -1; + goto cleanup; } pyobj_dom_inst = PyInstance_New(dom_class, @@ -1571,7 +1575,7 @@ libvirt_virConnectDomainEventCallback(vi if(!pyobj_dom_inst) { printf("%s Error creating a python instance of virDomain\n", __FUNCTION__); PyErr_Print(); - return -1; + goto cleanup; } /* Call the Callback Dispatcher */ @@ -1586,12 +1590,15 @@ libvirt_virConnectDomainEventCallback(vi if(!pyobj_ret) { printf("%s - ret:%p\n", __FUNCTION__, pyobj_ret); PyErr_Print(); - return -1; } else { Py_DECREF(pyobj_ret); - return 0; + ret = 0; } + +cleanup: + LIBVIRT_RELEASE_THREAD_STATE; + return -1; } static PyObject * @@ -1620,10 +1627,14 @@ libvirt_virConnectDomainEventRegister(AT Py_INCREF(pyobj_conn_inst); + LIBVIRT_BEGIN_ALLOW_THREADS; + ret = virConnectDomainEventRegister(conn, libvirt_virConnectDomainEventCallback, (void *)pyobj_conn_inst); + LIBVIRT_END_ALLOW_THREADS; + py_retval = libvirt_intWrap(ret); return (py_retval); } @@ -1650,8 +1661,12 @@ libvirt_virConnectDomainEventDeregister( conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn); + LIBVIRT_BEGIN_ALLOW_THREADS; + ret = virConnectDomainEventDeregister(conn, libvirt_virConnectDomainEventCallback); + LIBVIRT_END_ALLOW_THREADS; + Py_DECREF(pyobj_conn_inst); py_retval = libvirt_intWrap(ret); return (py_retval); @@ -1679,13 +1694,15 @@ libvirt_virEventAddHandleFunc (int fd A PyObject *cb_args; PyObject *pyobj_args; + LIBVIRT_ENSURE_THREAD_STATE; + /* Lookup the python callback */ python_cb = PyDict_GetItemString(getLibvirtDictObject(), "eventInvokeHandleCallback"); if(!python_cb) { printf("%s Error finding eventInvokeHandleCallback\n", __FUNCTION__); PyErr_Print(); - return -1; + goto cleanup; } Py_INCREF(python_cb); @@ -1708,6 +1725,10 @@ libvirt_virEventAddHandleFunc (int fd A Py_XDECREF(result); Py_DECREF(pyobj_args); + +cleanup: + LIBVIRT_RELEASE_THREAD_STATE; + return 0; } @@ -1715,7 +1736,11 @@ static void libvirt_virEventUpdateHandleFunc(int fd, int event) { PyObject *result = NULL; - PyObject *pyobj_args = PyTuple_New(2); + PyObject *pyobj_args; + + LIBVIRT_ENSURE_THREAD_STATE; + + pyobj_args = PyTuple_New(2); PyTuple_SetItem(pyobj_args, 0, libvirt_intWrap(fd)); PyTuple_SetItem(pyobj_args, 1, libvirt_intWrap(event)); @@ -1724,13 +1749,20 @@ libvirt_virEventUpdateHandleFunc(int fd, Py_XDECREF(result); Py_DECREF(pyobj_args); + + LIBVIRT_RELEASE_THREAD_STATE; } + static int libvirt_virEventRemoveHandleFunc(int fd) { PyObject *result = NULL; - PyObject *pyobj_args = PyTuple_New(1); + PyObject *pyobj_args; + + LIBVIRT_ENSURE_THREAD_STATE; + + pyobj_args = PyTuple_New(1); PyTuple_SetItem(pyobj_args, 0, libvirt_intWrap(fd)); if(removeHandleObj && PyCallable_Check(removeHandleObj)) @@ -1738,6 +1770,9 @@ libvirt_virEventRemoveHandleFunc(int fd) Py_XDECREF(result); Py_DECREF(pyobj_args); + + LIBVIRT_RELEASE_THREAD_STATE; + return 0; } @@ -1754,13 +1789,15 @@ libvirt_virEventAddTimeoutFunc(int timeo PyObject *cb_args; PyObject *pyobj_args; + LIBVIRT_ENSURE_THREAD_STATE; + /* Lookup the python callback */ python_cb = PyDict_GetItemString(getLibvirtDictObject(), "eventInvokeTimeoutCallback"); if(!python_cb) { printf("%s Error finding eventInvokeTimeoutCallback\n", __FUNCTION__); PyErr_Print(); - return -1; + goto cleanup; } Py_INCREF(python_cb); @@ -1783,6 +1820,9 @@ libvirt_virEventAddTimeoutFunc(int timeo Py_XDECREF(result); Py_DECREF(pyobj_args); + +cleanup: + LIBVIRT_RELEASE_THREAD_STATE; return 0; } @@ -1790,7 +1830,11 @@ static void libvirt_virEventUpdateTimeoutFunc(int timer, int timeout) { PyObject *result = NULL; - PyObject *pyobj_args = PyTuple_New(2); + PyObject *pyobj_args; + + LIBVIRT_ENSURE_THREAD_STATE; + + pyobj_args = PyTuple_New(2); PyTuple_SetItem(pyobj_args, 0, libvirt_intWrap(timer)); PyTuple_SetItem(pyobj_args, 1, libvirt_intWrap(timeout)); @@ -1799,13 +1843,19 @@ libvirt_virEventUpdateTimeoutFunc(int ti Py_XDECREF(result); Py_DECREF(pyobj_args); + + LIBVIRT_RELEASE_THREAD_STATE; } static int libvirt_virEventRemoveTimeoutFunc(int timer) { PyObject *result = NULL; - PyObject *pyobj_args = PyTuple_New(1); + PyObject *pyobj_args; + + LIBVIRT_ENSURE_THREAD_STATE; + + pyobj_args = PyTuple_New(1); PyTuple_SetItem(pyobj_args, 0, libvirt_intWrap(timer)); if(updateTimeoutObj && PyCallable_Check(updateTimeoutObj)) @@ -1813,6 +1863,9 @@ libvirt_virEventRemoveTimeoutFunc(int ti Py_XDECREF(result); Py_DECREF(pyobj_args); + + LIBVIRT_RELEASE_THREAD_STATE; + return 0; } @@ -1845,6 +1898,8 @@ libvirt_virEventRegisterImpl(ATTRIBUTE_U Py_INCREF(updateTimeoutObj); Py_INCREF(removeTimeoutObj); + LIBVIRT_BEGIN_ALLOW_THREADS; + virEventRegisterImpl(libvirt_virEventAddHandleFunc, libvirt_virEventUpdateHandleFunc, libvirt_virEventRemoveHandleFunc, @@ -1852,6 +1907,8 @@ libvirt_virEventRegisterImpl(ATTRIBUTE_U libvirt_virEventUpdateTimeoutFunc, libvirt_virEventRemoveTimeoutFunc); + LIBVIRT_END_ALLOW_THREADS; + return VIR_PY_INT_SUCCESS; } Index: include/libvirt/libvirt.h.in =================================================================== RCS file: /data/cvs/libvirt/include/libvirt/libvirt.h.in,v retrieving revision 1.57 diff -u -p -r1.57 libvirt.h.in --- include/libvirt/libvirt.h.in 24 Oct 2008 12:05:39 -0000 1.57 +++ include/libvirt/libvirt.h.in 4 Nov 2008 19:45:42 -0000 @@ -1004,14 +1004,14 @@ virDomainPtr virDomainCreateL * a virDomainEventType is emitted during domain lifecycle events */ typedef enum { - VIR_DOMAIN_EVENT_ADDED, - VIR_DOMAIN_EVENT_REMOVED, - VIR_DOMAIN_EVENT_STARTED, - VIR_DOMAIN_EVENT_SUSPENDED, - VIR_DOMAIN_EVENT_RESUMED, - VIR_DOMAIN_EVENT_STOPPED, - VIR_DOMAIN_EVENT_SAVED, - VIR_DOMAIN_EVENT_RESTORED, + VIR_DOMAIN_EVENT_ADDED = 0, + VIR_DOMAIN_EVENT_REMOVED = 1, + VIR_DOMAIN_EVENT_STARTED = 2, + VIR_DOMAIN_EVENT_SUSPENDED = 3, + VIR_DOMAIN_EVENT_RESUMED = 4, + VIR_DOMAIN_EVENT_STOPPED = 5, + VIR_DOMAIN_EVENT_SAVED = 6, + VIR_DOMAIN_EVENT_RESTORED = 7, } virDomainEventType; /** -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 6

[libvirt] _lstat link failure on mingw
by Jim Meyering 07 Nov '08

07 Nov '08

This fixes a problem spotted by Rich Jones yesterday: >From 5d5042ad904f8da6ffff93c1a5e392cd4d9b86a1 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 6 Nov 2008 20:46:46 +0100 Subject: [PATCH] tweak lstat.c to avoid mingw link failure * gnulib/lib/lstat.c: Include <sys/stat.h> *before* the use of stat in orig_stat. Otherwise, on mingw (which lacks lstat), any program using the lstat module would not get the redefinition- to-stat provided by gnulib's sys/stat.h. --- gnulib/lib/lstat.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/gnulib/lib/lstat.c b/gnulib/lib/lstat.c index 3d1bca8..aa5e8c4 100644 --- a/gnulib/lib/lstat.c +++ b/gnulib/lib/lstat.c @@ -25,15 +25,15 @@ #include <sys/stat.h> #undef __need_system_sys_stat_h +/* Specification. */ +#include <sys/stat.h> + static inline int orig_lstat (const char *filename, struct stat *buf) { return lstat (filename, buf); } -/* Specification. */ -#include <sys/stat.h> - #include <string.h> #include <errno.h> -- 1.6.0.3.756.gb776d

3 2

[libvirt] [PATCH] mark a few diagnostics for translation
by Jim Meyering 07 Nov '08

07 Nov '08

FYI. This is trivial, so I'll push it soon unless someone objects. >From d5d9bc7e5473ea3ce40c4af70a2085c316023723 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Thu, 6 Nov 2008 20:41:34 +0100 Subject: [PATCH] mark a few diagnostics for translation * src/lxc_conf.c (lxcLoadDriverConfig): Mark a diagnostic. * src/lxc_driver.c (lxcDomainStart): Likewise. * po/POTFILES.in: Add src/lxc_conf.c. * Makefile.maint (msg_gen_function): Add virReportErrorHelper and lxcError. --- Makefile.maint | 3 ++- po/POTFILES.in | 1 + src/lxc_conf.c | 5 ++--- src/lxc_driver.c | 2 +- 4 files changed, 6 insertions(+), 5 deletions(-) diff --git a/Makefile.maint b/Makefile.maint index d856469..28b1c3f 100644 --- a/Makefile.maint +++ b/Makefile.maint @@ -353,6 +353,8 @@ msg_gen_function += qemudReportError msg_gen_function += openvzLog msg_gen_function += openvzError msg_gen_function += virDomainReportError +msg_gen_function += virReportErrorHelper +msg_gen_function += lxcError # Uncomment the following and run "make syntax-check" to see diagnostics # that are not yet marked for translation, but that need to be rewritten @@ -360,7 +362,6 @@ msg_gen_function += virDomainReportError # msg_gen_function += error # msg_gen_function += virXenError # msg_gen_function += testError -# msg_gen_function += lxcError func_or := $(shell printf '$(msg_gen_function)'|tr -s '[[:space:]]' '|') func_re := ($(func_or)) diff --git a/po/POTFILES.in b/po/POTFILES.in index fdb34b5..3f8fdd2 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -7,6 +7,7 @@ src/datatypes.c src/domain_conf.c src/iptables.c src/libvirt.c +src/lxc_conf.c src/lxc_container.c src/lxc_controller.c src/lxc_driver.c diff --git a/src/lxc_conf.c b/src/lxc_conf.c index 76f4e9d..0db9bb5 100644 --- a/src/lxc_conf.c +++ b/src/lxc_conf.c @@ -83,8 +83,7 @@ int lxcLoadDriverConfig(lxc_driver_t *driver) return 0; no_memory: - lxcError(NULL, NULL, VIR_ERR_NO_MEMORY, "configDir"); + lxcError(NULL, NULL, VIR_ERR_NO_MEMORY, + "%s", _("while loading LXC driver config")); return -1; } - - diff --git a/src/lxc_driver.c b/src/lxc_driver.c index 8bfd27d..583c4ff 100644 --- a/src/lxc_driver.c +++ b/src/lxc_driver.c @@ -857,7 +857,7 @@ static int lxcDomainStart(virDomainPtr dom) if (!vm) { lxcError(conn, dom, VIR_ERR_INVALID_DOMAIN, - "no domain with uuid"); + _("no domain named %s"), dom->name); goto cleanup; } -- 1.6.0.3.756.gb776d

1 0

[libvirt] RFC: Domain events add DEFINED and UNDEFINED events
by Daniel P. Berrange 07 Nov '08

07 Nov '08

We currently have the following list of events for domains: VIR_DOMAIN_EVENT_ADDED, VIR_DOMAIN_EVENT_REMOVED, VIR_DOMAIN_EVENT_STARTED, VIR_DOMAIN_EVENT_SUSPENDED, VIR_DOMAIN_EVENT_RESUMED, VIR_DOMAIN_EVENT_STOPPED, VIR_DOMAIN_EVENT_SAVED, VIR_DOMAIN_EVENT_RESTORED, The QEMU driver supports all of them, except for ADDED and REMOVED. I was looking at adding these and wondering how exactly we should define the semantics Originally I was just going to emit 'ADDED' from virDomainDefine() driver impl and 'REMOVED' from virDomainUndefine(). This does not, however, take into account that there are two sorts of domains, so called 'persistent' and 'transient' domains. With a transient domain, there is no config file, so the first time you know about the domain is when it is booted via virDomainCreateXML(), and all trace of it disappears when it shuts down, or migrates, or is saved. With a persistent domain though, it is visible before it is booted, and remains visible after shutdown/migrate/save etc. The current set of events does not allow applications to get this level of visibility. eg when receiving a VIR_DOMAIN_EVENT_STOPPED event, there is no way to know wether the domain was transient / persistent, and thus whether to remove it from your list of VMs, or simply mark it shutoff. So, I'd like to propose that we do the following: - Clarify the semantics for * VIR_DOMAIN_EVENT_ADDED Emitted when a domain comes into existance, by which I mean a previously known inactive domain is defined, or a transient domain is booted. This is emited before any other events for a domain with that UUID/name. * VIR_DOMAIN_EVENT_REMOVED Emitted when a domains goes out of existance, by which I mean a transient domain shuts down / migrates / is saved, or a persistent domain is undefined. This is the last event ever to be emitted for a domain with that UUID/name. - Create two more events * VIR_DOMAIN_EVENT_DEFINED Emitted whenenever a domain's config file is created. This can be when a peristent domain is first defined, when it is later re-defined, or when an transient domain gains a confi file, becoming persistent. * VIR_DOMAIN_EVENT_UNDEFINED Emitted when a domain's config file is removed. With this complete set of events, virt-manager is able to track domains without ever having to poll for the domain listing. I think we also need to provide some way for an application to determine what set of events a hypervisor backend supports. eg, if it only supports the STARTED/STOPPED events, virt-manager would still need to do polling to find out about defined/undefined domains. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 4

[libvirt] [PATCH] Xen events
by Ben Guthro 06 Nov '08

06 Nov '08

The following patch implements a framework for emitting events from the Xen driver, via monitoring xenstore. Currently, this only emits the STARTED, and STOPPED events, as this is all that seems to be available via monitoring xenstore. xen_unified.c | 162 +++++++++++++++++++++++ xen_unified.h | 38 +++++ xs_internal.c | 408 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++- xs_internal.h | 51 +++++++ 4 files changed, 657 insertions(+), 2 deletions(-)

2 2

[libvirt] Problem with fullyvirtualized guest direct kernel boot
by Max Martynov 06 Nov '08

06 Nov '08

Hi All, I am trying to use fullyvirtualized guest direct kernel boot, but all I see is the following error: libvir: Xen Daemon error : POST operation failed: (xend.err 'Error creating domain: (2, \'Invalid kernel\', "elf_xen_note_check: ERROR: Not a Xen-ELF image: No ELF notes or \'__xen_guest\' section found.\\n")') Kernel, initrd and root file system are extracted from working Fedora 9 disk image without any additional tinkering. Guest Fedora is clean and was installed from scratch. When I use this whole disk image with fullyvirtualized guest BIOS boot with, everything works fine. I also tried paravirtualized guest bootloader with another linux kernel and it also works fine. Xen version is 3.2.1-rc1-pre. Host OS is Ubuntu Hardy. Here is the libvirt config for direct kernel boot: <domain type='xen' id='18'> <name>test1</name> <uuid>4dea22b31d52d8f32516782e98ab3fa0</uuid> <os> <type>linux</type> <loader>/usr/lib/xen/boot/hvmloader</loader> <kernel>/tmp/vmlinuz-2.6.25-14.fc9.i686</kernel> <initrd>/tmp/initrd-2.6.25-14.fc9.i686.img</initrd> <root>/dev/sda1</root> <cmdline>ro</cmdline> </os> <memory>524288</memory> <vcpu>1</vcpu> <devices> <emulator>/usr/lib/xen/bin/qemu-dm</emulator> <disk type='file'> <driver name="tap" type="aio"/> <source file='/tmp/f9_disassembled/root.img'/> <target dev='sda1'/> </disk> <disk type='file'> <driver name="tap" type="aio"/> <source file='/tmp/swap'/> <target dev='sda3'/> </disk> <interface type='bridge'> <source bridge='eth0'/> <mac address='00:16:3e:5d:c7:9e'/> <script path='/etc/xen/scripts/vif-bridge'/> </interface> <graphics type='vnc' port='5904'/> </devices> </domain> What do you think can be the cause of this issue? -- Thanks, Max <libvir-list(a)redhat.com>

2 3

[libvirt] [PATCH] cleanup of loging definitions
by Daniel Veillard 06 Nov '08

06 Nov '08

Currently the debugFlag switch, the VIR_DEBUG, DEBUG and DEBUG0 macros were scattered in various places, duplicated once (or twice) per generated binaries. This patch moves everything in one virtlog.h header, one virtlog.c file and set up the makefiles so that the various binaries refers to the same bits. That's a cleanup with no functional change to prepare the real loging APIs, patch and the 2 new files attached, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

2 3

[libvirt] Openvz bridge support
by Anton Protopopov 06 Nov '08

06 Nov '08

Hi, 2008/10/14 Daniel P. Berrange <berrange(a)redhat.com> > This patch series is derived from Anton Protopopov /Evgeniy Sokolov > bridge device patches. It first does some generic refactoring of MAC > address handler in all drivers, then adds code to extract openvz version > number, then does network config, and finally does filesystem config. Are these patches will be commited some day? Or they are still work-in-progress? Or they are just forgotten? :)

3 2

[libvirt] Libvirt CVS fails to build on PPC
by Chris Lalancette 06 Nov '08

06 Nov '08

Actually, the subject isn't strictly true. Libvirt CVS currently fails to build when using this configuration on any platform: ./configure --build=i686-redhat-linux-gnu --host=i686-redhat-linux-gnu --target=i386-redhat-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --without-xen --without-qemu --with-init-script=redhat --with-qemud-pid-file=/var/run/libvirt_qemud.pid --with-remote-file=/var/run/libvirtd.pid (the important part is the --without-xen --without-qemu in there). This just happens to be the configuration that koji uses when it is building the ppc libvirt package. There are a lot of build errors, but they start with: network_driver.c:64: error: expected specifier-qualifier-list before 'iptablesContext' network_driver.c: In function 'networkStartup': network_driver.c:124: error: 'struct network_driver' has no member named 'logDir' This seems to stem from the new module refactoring. I'm not entirely sure what's the correct way to fix it, however; I *think* we always want to build the network_driver at this point, but if that's the case, then we need to make sure we have the header files for iptablesContext and friends included. Dan, any ideas? -- Chris Lalancette

2 2

[libvirt] [PATCH] dynamic debug patch
by Daniel Veillard 05 Nov '08

05 Nov '08

First version of a small patch allowing to gather debug informations from a running libvirt daemon. Basically one can send signal USR2 to the daemon, the daemon will from that point dump its current internal state and all verbose debug output to a file /tmp/libvirt_debug_xxxx. When sending back signal USR2 the file is closed and can be looked at for analysis, this allow to save extensive debug informations from a running daemon. The patch is rather minimal right now, it just applies to qemud/qemud.c, modifies it to have global variables for error and information output FILE, an init routing setting them up and hooking a handler for USR2, the handler, a very minimal state dump. But it works as is. Now I would like to extend that debugging to the library itself, so any app linking to libvirt can be debugged in the same way. I would also like to add debugging routines for most internal data structures. I'm still wondering about the best form for those, should they use a FILE * argument, an fd argument or a virBufferPtr for genericity (probably the later would make most sense). #ifdef ENABLE_DEBUG void virConnectDebug(virBufferPtr buf, virConnectPtr conn); #endif and similar for main internal data structures and drivers The patch is just a work in progress but trying to get early feedback. Maybe this could be used to get remote introspection capabilities too but ATM I'm more looking at providing an easy way to get debug informations on a libvirt program. Also I'm unclear, do we really want to have all the debug strings internationalized with _() , that's more work for localization team and it's unclear this would benefit 'end users'. Patch and an example of log attached, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

2 4

[libvirt] [PATCH 0/3]: Better debug output from virExec/virRun
by Cole Robinson 05 Nov '08

05 Nov '08

The following three patches add improved debug output for the virExec and virRun commands. The full argv is now logged, and virRun reads the command stdout and stderr for use in error reporting. Thanks, Cole

3 12

[libvirt] [PATCH] plug two leaks and fix a diagnostic
by Jim Meyering 05 Nov '08

05 Nov '08

Without this patch, running make check would trigger this minor leak: 10 bytes in 1 blocks are definitely lost in loss record 1 of 20 at 0x4A0739E: malloc (vg_replace_malloc.c:207) by 0x3F872808A1: strdup (strdup.c:43) by 0x4CA2503: qemudLoadDriverConfig (qemu_conf.c:70) by 0x4CA7EA7: qemudStartup (qemu_driver.c:216) by 0x4C3AEBC: __virStateInitialize (libvirt.c:592) by 0x4096B6: qemudInitialize (qemud.c:738) by 0x40CCCF: main (qemud.c:2216) Looking into it, I found there were actually two separate leaks and an erroneous diagnostic. This fixes them: >From b1f17b05e59cf12aa3f73fde1be713dbadf02f76 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Wed, 5 Nov 2008 14:50:24 +0100 Subject: [PATCH] plug two leaks and fix a diagnostic * src/qemu_conf.c (qemudLoadDriverConfig): Don't leak ->vncListen. Fix an erroneous copy-and-pasted diagnostic. * src/qemu_driver.c (qemudShutdown): Don't leak another ->vncListen. --- src/qemu_conf.c | 3 ++- src/qemu_driver.c | 1 + 2 files changed, 3 insertions(+), 1 deletions(-) diff --git a/src/qemu_conf.c b/src/qemu_conf.c index 54ac23d..0e3b959 100644 --- a/src/qemu_conf.c +++ b/src/qemu_conf.c @@ -118,9 +118,10 @@ int qemudLoadDriverConfig(struct qemud_driver *driver, p = virConfGetValue (conf, "vnc_listen"); CHECK_TYPE ("vnc_listen", VIR_CONF_STRING); if (p && p->str) { + VIR_FREE(driver->vncListen); if (!(driver->vncListen = strdup(p->str))) { qemudReportError(NULL, NULL, NULL, VIR_ERR_NO_MEMORY, - "%s", _("failed to allocate vncTLSx509certdir")); + "%s", _("failed to allocate vnc_listen")); virConfFree(conf); return -1; } diff --git a/src/qemu_driver.c b/src/qemu_driver.c index 4adeb73..5d108ed 100644 --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -314,6 +314,7 @@ qemudShutdown(void) { VIR_FREE(qemu_driver->configDir); VIR_FREE(qemu_driver->autostartDir); VIR_FREE(qemu_driver->vncTLSx509certdir); + VIR_FREE(qemu_driver->vncListen); /* Free domain callback list */ virDomainEventCallbackListFree(qemu_driver->domainEventCallbacks); -- 1.6.0.3.756.gb776d

2 2

[libvirt] [PATCH]: vgscan before doing logical pool discovery
by Chris Lalancette 05 Nov '08

05 Nov '08

Assume that you have an iSCSI target available, and on that iSCSI target 1 LUN is exported. On that 1 LUN, you have an LVM volume group (say, myvg), with 2 logical volumes (say, lv1 and lv2). Now you execute the following sequence of commands: 1) virsh define iscsi_pool.xml 2) virsh start iscsi_pool 3) virsh find-storage-pool-sources-as logical With that sequence, you would expect step 3) to return XML similar to: <sources><source><name>myvg</name><device path='/dev/sdb'/></source></sources> However, what you instead get is: <sources/>. That's because if you just try to do storage pool discovery on a logical pool without ever touching the logical pool in any fashion, pvs (what we use to do discovery) doesn't return anything. If you touch the logical volume group at all (say, with vgscan), they then suddenly appear. To make sure we see all of the potential volume groups when doing pool discovery, make sure to run vgscan before we run pvs. With this patch in place, logical discovery just does the right thing. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] New Libvirt Implementation - OpenNebula
by Ruben S. Montero 05 Nov '08

05 Nov '08

Dear all, You may find of interest a new implementation of the libvirt virtualization API. This new implementation adds support to OpenNebula, a distributed VM manager system. The implementation of libvirt on top of a distributed VM manager, like OpenNebula, provides an abstraction of a whole cluster of resources (each one with its hypervisor). In this way, you can use any libvirt tool (e.g. virsh, virt-manager) and XML domain descriptions at a distributed level. For example, you may create a new domain with 'virsh create', then OpenNebula will look for a suitable resource, transfer the VM images and boot your VM using any of the supported hypervisors. The distributed management is completely transparent to the libvirt application. This is, a whole cluster can be managed as any other libvirt node. The current implementation is targeted for libvirt 0.4.4, and includes a patch to the libvirt source tree (mainly to modify the autotools files), and a libvirt driver. More information and download instructions can be found at: * http://trac.opennebula.org/wiki/LibvirtOpenNebula * http://www.opennebula.org Cheers Ruben -- +---------------------------------------------------------------+ Dr. Ruben Santiago Montero Associate Professor Distributed System Architecture Group (http://dsa-research.org) URL: http://dsa-research.org/doku.php?id=people:ruben Weblog: http://blog.dsa-research.org/?author=7 GridWay, http://www.gridway.org OpenNEbula, http://www.opennebula.org +---------------------------------------------------------------+

5 15

[libvirt] PATCH: 0/11: Fully modular drivers and optional dlopen support
by Daniel P. Berrange 05 Nov '08

05 Nov '08

The following series of patches clean up our internal modularization to remove unneccessary dependancies between source files, and make everything follow a consistent pattern of XXXX.h declaring stuff in XXXX.c. Later in the series is plays some games with the linker scripts, and finally makes all hypervisor drivers fully modular, and optionally dlopen'able. The 10'th patch in this series is a pre-requisite to enable us to merge David's host device patches, since it lets us avoid GPL/LGPL compat issues from DBus/HAL. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 27

[libvirt] PATCH: Pass -uuid and -domid to QEMU if available
by Daniel P. Berrange 04 Nov '08

04 Nov '08

Latest QEMU code now allows setting of the UUID in its SMBIOS data tables via the -uuid command line arg. THis patch makes use of that feature by pasing in the libvirt UUID for the VM. While doing this I also added support for the Xenner specific -domid flag Daniel Index: src/qemu_conf.c =================================================================== RCS file: /data/cvs/libvirt/src/qemu_conf.c,v retrieving revision 1.103 diff -u -p -r1.103 qemu_conf.c --- src/qemu_conf.c 28 Oct 2008 17:43:25 -0000 1.103 +++ src/qemu_conf.c 3 Nov 2008 12:52:06 -0000 @@ -439,6 +439,10 @@ int qemudExtractVersionInfo(const char * flags |= QEMUD_CMD_FLAG_NO_REBOOT; if (strstr(help, "-name")) flags |= QEMUD_CMD_FLAG_NAME; + if (strstr(help, "-uuid")) + flags |= QEMUD_CMD_FLAG_UUID; + if (strstr(help, "-domid")) + flags |= QEMUD_CMD_FLAG_DOMID; if (strstr(help, "-drive")) flags |= QEMUD_CMD_FLAG_DRIVE; if (strstr(help, "boot=on")) @@ -713,6 +717,8 @@ int qemudBuildCommandLine(virConnectPtr int qenvc = 0, qenva = 0; const char **qenv = NULL; const char *emulator; + char uuid[VIR_UUID_STRING_BUFLEN]; + char domid[50]; uname(&ut); @@ -723,6 +729,8 @@ int qemudBuildCommandLine(virConnectPtr !ut.machine[4]) ut.machine[1] = '6'; + virUUIDFormat(vm->def->uuid, uuid); + /* Need to explicitly disable KQEMU if * 1. Arch matches host arch * 2. Guest is 'qemu' @@ -802,6 +810,7 @@ int qemudBuildCommandLine(virConnectPtr snprintf(memory, sizeof(memory), "%lu", vm->def->memory/1024); snprintf(vcpus, sizeof(vcpus), "%lu", vm->def->vcpus); + snprintf(domid, sizeof(domid), "%d", vm->def->id); ADD_ENV_LIT("LC_ALL=C"); @@ -834,6 +843,15 @@ int qemudBuildCommandLine(virConnectPtr ADD_ARG_LIT("-name"); ADD_ARG_LIT(vm->def->name); } + if (qemuCmdFlags & QEMUD_CMD_FLAG_UUID) { + ADD_ARG_LIT("-uuid"); + ADD_ARG_LIT(uuid); + } + if (qemuCmdFlags & QEMUD_CMD_FLAG_DOMID) { + ADD_ARG_LIT("-domid"); + ADD_ARG_LIT(domid); + } + /* * NB, -nographic *MUST* come before any serial, or monitor * or parallel port flags due to QEMU craziness, where it Index: src/qemu_conf.h =================================================================== RCS file: /data/cvs/libvirt/src/qemu_conf.h,v retrieving revision 1.43 diff -u -p -r1.43 qemu_conf.h --- src/qemu_conf.h 23 Oct 2008 13:18:18 -0000 1.43 +++ src/qemu_conf.h 3 Nov 2008 12:52:06 -0000 @@ -44,6 +44,8 @@ enum qemud_cmd_flags { QEMUD_CMD_FLAG_DRIVE = (1 << 3), QEMUD_CMD_FLAG_DRIVE_BOOT = (1 << 4), QEMUD_CMD_FLAG_NAME = (1 << 5), + QEMUD_CMD_FLAG_UUID = (1 << 6), + QEMUD_CMD_FLAG_DOMID = (1 << 7), /* Xenner only */ }; /* Main driver state */ Index: src/qemu_driver.c =================================================================== RCS file: /data/cvs/libvirt/src/qemu_driver.c,v retrieving revision 1.144 diff -u -p -r1.144 qemu_driver.c --- src/qemu_driver.c 29 Oct 2008 14:32:41 -0000 1.144 +++ src/qemu_driver.c 3 Nov 2008 12:52:07 -0000 @@ -860,10 +860,12 @@ static int qemudStartVMDaemon(virConnect return -1; } + vm->def->id = driver->nextvmid++; if (qemudBuildCommandLine(conn, driver, vm, qemuCmdFlags, &argv, &progenv, &tapfds, &ntapfds, migrateFrom) < 0) { close(vm->logfile); + vm->def->id = -1; vm->logfile = -1; return -1; } @@ -901,10 +903,10 @@ static int qemudStartVMDaemon(virConnect ret = virExec(conn, argv, progenv, &keepfd, &vm->pid, vm->stdin_fd, &vm->stdout_fd, &vm->stderr_fd, VIR_EXEC_NONBLOCK); - if (ret == 0) { - vm->def->id = driver->nextvmid++; + if (ret == 0) vm->state = migrateFrom ? VIR_DOMAIN_PAUSED : VIR_DOMAIN_RUNNING; - } + else + vm->def->id = -1; for (i = 0 ; argv[i] ; i++) VIR_FREE(argv[i]); Index: tests/qemuxml2argvtest.c =================================================================== RCS file: /data/cvs/libvirt/tests/qemuxml2argvtest.c,v retrieving revision 1.32 diff -u -p -r1.32 qemuxml2argvtest.c --- tests/qemuxml2argvtest.c 10 Oct 2008 16:52:20 -0000 1.32 +++ tests/qemuxml2argvtest.c 3 Nov 2008 12:52:07 -0000 @@ -43,7 +43,10 @@ static int testCompareXMLToArgvFiles(con memset(&vm, 0, sizeof vm); vm.def = vmdef; - vm.def->id = -1; + if (extraFlags & QEMUD_CMD_FLAG_DOMID) + vm.def->id = 6; + else + vm.def->id = -1; vm.pid = -1; flags = QEMUD_CMD_FLAG_VNC_COLON | @@ -196,6 +199,8 @@ mymain(int argc, char **argv) DO_TEST("input-xen", 0); DO_TEST("misc-acpi", 0); DO_TEST("misc-no-reboot", 0); + DO_TEST("misc-uuid", QEMUD_CMD_FLAG_NAME | + QEMUD_CMD_FLAG_UUID | QEMUD_CMD_FLAG_DOMID); DO_TEST("net-user", 0); DO_TEST("net-virtio", 0); Index: tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.args =================================================================== RCS file: tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.args diff -N tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.args --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.args 3 Nov 2008 12:52:07 -0000 @@ -0,0 +1 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -name QEMUGuest1 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 -domid 6 -nographic -monitor pty -boot c -hda /dev/HostVG/QEMUGuest1 -net none -serial none -parallel none -usb Index: tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml =================================================================== RCS file: tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml diff -N tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ tests/qemuxml2argvdata/qemuxml2argv-misc-uuid.xml 3 Nov 2008 12:52:07 -0000 @@ -0,0 +1,25 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219200</memory> + <currentMemory>219200</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + </disk> + </devices> +</domain> -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 2

[libvirt] one more warning
by Jim Meyering 04 Nov '08

04 Nov '08

One more warning question: Compiling with all storage backends disabled, I get this: storage_backend.c:91: warning: comparison of unsigned expression < 0 is always false That's because of this code: static virStorageBackendPtr backends[] = { #if WITH_STORAGE_DIR &virStorageBackendDirectory, #endif #if WITH_STORAGE_FS &virStorageBackendFileSystem, &virStorageBackendNetFileSystem, #endif #if WITH_STORAGE_LVM &virStorageBackendLogical, #endif #if WITH_STORAGE_ISCSI &virStorageBackendISCSI, #endif #if WITH_STORAGE_DISK &virStorageBackendDisk, #endif }; virStorageBackendPtr virStorageBackendForType(int type) { unsigned int i; for (i = 0 ; i < ARRAY_CARDINALITY(backends); i++) if (backends[i]->type == type) return backends[i]; virStorageReportError(NULL, VIR_ERR_INTERNAL_ERROR, _("missing backend for pool type %d"), type); return NULL; } The above loses because ARRAY_CARDINALITY(backends) is 0. One solution is to always have at least one backend, e.g., the first one, in which case, this patch works fine: [but if you like this (i don't), it'd make sense also to remove the configure-time option ] diff --git a/src/storage_backend.c b/src/storage_backend.c index e33f98c..264cc53 100644 --- a/src/storage_backend.c +++ b/src/storage_backend.c @@ -56,9 +56,7 @@ #if WITH_STORAGE_DISK #include "storage_backend_disk.h" #endif -#if WITH_STORAGE_DIR #include "storage_backend_fs.h" -#endif VIR_ENUM_IMPL(virStorageBackendPartTable, VIR_STORAGE_POOL_DISK_LAST, @@ -66,9 +64,7 @@ VIR_ENUM_IMPL(virStorageBackendPartTable, "mac", "bsd", "pc98", "sun", "lvm2"); static virStorageBackendPtr backends[] = { -#if WITH_STORAGE_DIR &virStorageBackendDirectory, -#endif #if WITH_STORAGE_FS &virStorageBackendFileSystem, &virStorageBackendNetFileSystem, Another way is to add a NULL pointer at the end and change the loop not to use the array size at all: for (i = 0; backends[i]; i++) if (backends[i]->type == type) return backends[i]; I chose the latter: diff --git a/src/storage_backend.c b/src/storage_backend.c index e33f98c..1f4ed10 100644 --- a/src/storage_backend.c +++ b/src/storage_backend.c @@ -82,13 +82,14 @@ static virStorageBackendPtr backends[] = { #if WITH_STORAGE_DISK &virStorageBackendDisk, #endif + NULL }; virStorageBackendPtr virStorageBackendForType(int type) { unsigned int i; - for (i = 0 ; i < ARRAY_CARDINALITY(backends); i++) + for (i = 0; backends[i]; i++) if (backends[i]->type == type) return backends[i];

2 1

[libvirt] Does libvirt support Solaris Zones?
by jovialGuy _ 03 Nov '08

03 Nov '08

Hi! I have a quick question, does libvirt latest release supports Solaris Zones? I know it supports LDoms and xVM support is being integrated towards xVM Server. But which release to date supports Solaris Zones? Regards, Jovial

4 3

[libvirt] [PATCH] set cache=off on -disk line in qemu driver if <shareable/> (but not <readonly/>) is set.
by Charles Duffy 03 Nov '08

03 Nov '08

As cache=off is necessary for clustering filesystems such as GFS (and such is the point of shareable, yes?), I believe this is correct behavior. Comments?

4 5

[libvirt] Have any commands in libvirt to run a domain
by Ian jonhson 03 Nov '08

03 Nov '08

Hi all, Are there any commands in console to start/suspend/resume/stop a domain? Is it possible to start a domain as following command: # libvirt-command -cpu <cpu cycle> -mem <memory> -disk <disk quota> -network <network bandwith> -template <windows> If not, can I build this command with existing libvirt API? Thanks, Ian

2 1

[libvirt] [PATCH]: Allow arbitrary paths to virStorageVolLookupByPath
by Chris Lalancette 03 Nov '08

03 Nov '08

In ovirt, we have to scan iSCSI LUN's for LVM storage when they are first added to the database. To do this, we do roughly the following: iscsi_pool = libvirt.define_and_start_iscsi_pool("/dev/disk/by-id") iscsi_pool.add_luns_to_db logical = conn.discover_storage_pool_sources("logical") for each logical_volume_group in logical: for each device in logical_volume_group: iscsi_pool.lookup_vol_by_path(device.path) And then we use that information to associate an iSCSI LUN with this volume group. The problem is that there is an mis-match between how we define the iscsi pool (with /dev/disk/by-id devices), and what data the discover_storage_pool_sources() returns (/dev devices), so we can't easily associate the two. The following patch implements stable path naming when the virStorageVolLookupByPath method is called. Basically, it tries to convert whatever path it is given (say /dev/sdc) into the form currently used by the Pool (say /dev/disk/by-id). It then goes and looks up the form in the pool, and returns the storageVolume object as appropriate. Note that it only tries to do this for the Pool types where it makes sense, namely iSCSI and disk; all other pool types stay exactly the same. With this in place, we can solve the mis-match in the above code, and LVM scanning seems to work in ovirt. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 7

[libvirt] Error setting up graphics device:list index out of range
by Frederik Himpe 03 Nov '08

03 Nov '08

When I try to create a new KVM VM x86_64, os variant Ubuntu Hardy, it fails at the end with this message: Error setting up graphics device:list index out of range Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/create.py", line 640, in finish guest._graphics_dev = virtinst.VirtualGraphics (type=virtinst.VirtualGraphics.TYPE_VNC) File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 207, in __init__ self.set_keymap(keymap) File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 219, in set_keymap val = util.default_keymap() File "/usr/lib/python2.5/site-packages/virtinst/util.py", line 293, in default_keymap kt = s.split('"')[1] IndexError: list index out of range What could be wrong here? I'm using virt-manager 0.6.0, libvirt 0.4.6, python-virtinst 0.400.0 on Mandriva Linux 2009.0 x86_64. -- Frederik Himpe

1 0

[libvirt] Domain Events Python Bindings (Round 2)
by Ben Guthro 31 Oct '08

31 Oct '08

Attached are the python bindings for domain events as previously submitted: https://www.redhat.com/archives/libvir-list/2008-October/msg00707.html https://www.redhat.com/archives/libvir-list/2008-October/msg00668.html I have resolved most of the issues Daniel V. commented on I also addressed a number of ref counting problems. examples/domain-events/events-python/event-test.py | 186 ++++++++ python/Makefile.am | 5 python/generator.py | 19 python/libvir.c | 441 +++++++++++++++++++++ python/libvir.py | 20 python/libvirt_wrap.h | 27 + python/types.c | 47 ++ python/virConnect.py | 43 ++ 8 files changed, 782 insertions(+), 6 deletions(-)

2 5

[libvirt] [Q]Why does libvirt check size of memory in xenStoreDriver?
by S.Sakamoto 31 Oct '08

31 Oct '08

Hi, I have a question. Why does libvirt check size of memory in xenStoreDomainSetMemory of xs_internal.c? In the xen not exclude lifecycle, when I do the following command for the domain that is shutoff, error message is output and return value is 0 and the definition file(=/etc/xen/XXX) is updated. -------------------- # virsh setmem(or setmaxmem) guestdom 65535(4096-65535) libvir: Xen Store error : invalid argument in xenStoreDomainSetMemory # echo $? 0 -------------------- As a result that I research this, this error message is output by the check of the memory size in xenStoreDriver. Because libvirt checks the memory size of under 4096 in libvirt.c, I think that libvirt should check memory size range of 4096-65535 in libvirt.c. Thanks, Shigeki Sakamoto.

4 5

[libvirt] [PATCH]: Implement ruby-libvirt storage pool discovery binding
by Chris Lalancette 31 Oct '08

31 Oct '08

Attached is a pretty simple patch to implement the virConnectFindStoragePoolSources() binding for ruby-libvirt.This capability went into libvirt-0.4.5, so any version of libvirt that has storage API support should have support for this call. There's not much more to say; it works in my testing, and the implementation is pretty straightforward. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH]: Update ruby-libvirt migrate binding to use rb_scan_args
by Chris Lalancette 31 Oct '08

31 Oct '08

It's really not a good idea to hand parse variable number of args to a ruby binding, like I implemented for the "migrate" method. Convert this to use rb_scan_args, which is the proper way to do it, and matches all of the other variable argument implementations in the binding. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH] * tests/cpuset: New script. Test for today's fix.
by Jim Meyering 31 Oct '08

31 Oct '08

>From c0beb0ed6dd3d392b11161c565d7dfd52ed2aceb Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Mon, 2 Jun 2008 11:54:34 +0200 Subject: [PATCH 1/2] * tests/cpuset: New script. Test for today's fix. * tests/Makefile.am (test_scripts): Add cpuset. --- tests/Makefile.am | 1 + tests/cpuset | 45 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+), 0 deletions(-) create mode 100755 tests/cpuset diff --git a/tests/Makefile.am b/tests/Makefile.am index 02b7970..ea577df 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -48,6 +48,7 @@ test_scripts = domainschematest if WITH_LIBVIRTD test_scripts += \ test_conf.sh \ + cpuset \ daemon-conf \ int-overflow \ read-bufsiz \ diff --git a/tests/cpuset b/tests/cpuset new file mode 100755 index 0000000..8722c81 --- /dev/null +++ b/tests/cpuset @@ -0,0 +1,45 @@ +#!/bin/sh +# ensure that defining with an invalid vCPU cpuset elicits a diagnostic + +# Copyright (C) 2008 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +if test "$VERBOSE" = yes; then + set -x + virsh --version +fi + +. $srcdir/test-lib.sh + +fail=0 + +# generate input +virsh --connect test:///default dumpxml 1 > xml || fail=1 + +# require the presence of the string we'll transform +grep '<vcpu>' xml > /dev/null || fail=1 + +sed "s/vcpu>/vcpu cpuset='aaa'>/" xml > xml-invalid || fail=1 + +# Require failure and a diagnostic. +virsh --connect test:///default define xml-invalid > out 2>&1 && fail=1 +cat <<\EOF > exp || fail=1 +libvir: Domain Config error : failed Xen syscall topology cpuset syntax error +error: Failed to define domain from xml-invalid + +EOF +compare out exp || fail=1 + +(exit $fail); exit $fail -- 1.6.0.3.756.gb776d

2 1

[libvirt] PATCH: don't print uninitialized integer in diagnostic
by Jim Meyering 31 Oct '08

31 Oct '08

In adding a test of the vcpu cpuset parsing code (another patch coming separately), I noticed a bogus diagnostic: virsh --connect test:///default dumpxml 1 > xml sed "s/vcpu>/vcpu cpuset='aaa'>/" xml > xml-invalid ./virsh --connect test:///default define xml-invalid 2>&1 |head -1 libvir: Domain Config error : failed Xen syscall topology cpuset syntax error -2027441560 With the patch below, I get this output instead: (i.e., same, but without the trailing negative number) $ ./virsh --connect test:///default define xml-invalid 2>&1 |head -1 libvir: Domain Config error : failed Xen syscall topology cpuset syntax error diff --git a/src/virterror.c b/src/virterror.c index 21c7339..be809a0 100644 --- a/src/virterror.c +++ b/src/virterror.c @@ -1,7 +1,7 @@ /* * virterror.c: implements error handling and reporting code for libvirt * - * Copy: Copyright (C) 2006 Red Hat, Inc. + * Copy: Copyright (C) 2006, 2008 Red Hat, Inc. * * See COPYING.LIB for the License of this software * @@ -516,7 +516,7 @@ __virErrorMsg(virErrorNumber error, const char *info) errmsg = _("could not connect to Xen Store %s"); break; case VIR_ERR_XEN_CALL: - errmsg = _("failed Xen syscall %s %d"); + errmsg = _("failed Xen syscall %s"); break; case VIR_ERR_OS_TYPE: if (info == NULL)

2 1

[libvirt] virt-viewer with fullscreen?
by Jun Koi 31 Oct '08

31 Oct '08

Hi, I am using virt-viewer to view an Windows VM. However, I cannot get fullscreen with virt-viewer when using menu View -> Fullscreen. When I did that, nothing happenes. Is that a bug? The version of virt-viewer is 0.0.3 Thanks, J

1 0

[libvirt] [PATCH] Add storage API support to test driver
by Cole Robinson 30 Oct '08

30 Oct '08

The attached patch implements the storage driver routines for the test driver. Most of the code is identical to storage_driver.c with all the references to backends removed. One caveat of this is that storage pools are hardcoded to a specific size when they are defined: I figure someone could expand this to read sizes from xml at definition time if they wanted, but for now hardcoded values is sufficient. I've done some decent testing with it all, so I'm pretty confident it isn't too broken. Thanks, Cole src/test.c | 753 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 748 insertions(+), 5 deletions(-) diff --git a/src/test.c b/src/test.c index aab74e4..5ee51c0 100644 --- a/src/test.c +++ b/src/test.c @@ -29,6 +29,7 @@ #include <fcntl.h> #include <unistd.h> #include <sys/stat.h> +#include <libxml/xmlsave.h> #include "test.h" #include "buf.h" @@ -38,6 +39,7 @@ #include "memory.h" #include "network_conf.h" #include "domain_conf.h" +#include "storage_conf.h" #include "xml.h" #define MAX_CPUS 128 @@ -59,6 +61,7 @@ struct _testConn { virNodeInfo nodeInfo; virDomainObjList domains; virNetworkObjList networks; + virStoragePoolObjList pools; int numCells; testCell cells[MAX_CELLS]; }; @@ -106,11 +109,56 @@ static const virNodeInfo defaultNodeInfo = { } \ } while (0) +#define GET_POOL(pool, ret) \ + testConnPtr privconn; \ + virStoragePoolObjPtr privpool; \ + \ + privconn = (testConnPtr)pool->conn->privateData; \ + do { \ + if ((privpool = virStoragePoolObjFindByName(&privconn->pools, \ + (pool)->name)) == NULL) {\ + testError((pool)->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); \ + return (ret); \ + } \ + } while (0) + +#define GET_POOL_FROM_VOL(vol, ret) \ + GET_POOL(testStoragePoolLookupByName((virConnectPtr) \ + vol->conn, \ + vol->pool), ret) + +#define GET_VOL(vol, pool, ret) \ + virStorageVolDefPtr privvol; \ + \ + privvol = virStorageVolDefFindByName(pool, vol->name); \ + do { \ + if (!privvol) { \ + testError(vol->conn, VIR_ERR_INVALID_STORAGE_VOL, \ + _("no storage vol with matching name '%s'"), \ + vol->name); \ + return (ret); \ + } \ + } while (0) \ + + #define GET_CONNECTION(conn) \ testConnPtr privconn; \ \ privconn = (testConnPtr)conn->privateData; +#define POOL_IS_ACTIVE(pool, ret) \ + if (!virStoragePoolObjIsActive(pool)) { \ + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, \ + _("storage pool '%s' is not active"), pool->def->name); \ + return (ret); \ + } \ + +#define POOL_IS_NOT_ACTIVE(pool, ret) \ + if (virStoragePoolObjIsActive(pool)) { \ + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, \ + _("storage pool '%s' is already active"), pool->def->name); \ + return (ret); \ + } \ #define testError(conn, code, fmt...) \ __virReportErrorHelper(conn, VIR_FROM_TEST, code, __FILE__, \ @@ -196,6 +244,18 @@ static const char *defaultNetworkXML = " </ip>" "</network>"; +static const char *defaultPoolXML = +"<pool type='dir'>" +" <name>default-pool</name>" +" <target>" +" <path>/default-pool</path>" +" </target>" +"</pool>"; + +static const unsigned long long defaultPoolCap = (100 * 1024 * 1024 * 1024ul); +static const unsigned long long defaultPoolAlloc = 0; + +static int testStoragePoolObjSetDefaults(virStoragePoolObjPtr pool); static int testOpenDefault(virConnectPtr conn) { int u; @@ -205,6 +265,8 @@ static int testOpenDefault(virConnectPtr conn) { virDomainObjPtr domobj = NULL; virNetworkDefPtr netdef = NULL; virNetworkObjPtr netobj = NULL; + virStoragePoolDefPtr pooldef = NULL; + virStoragePoolObjPtr poolobj = NULL; if (VIR_ALLOC(privconn) < 0) { testError(conn, VIR_ERR_NO_MEMORY, "testConn"); @@ -250,15 +312,27 @@ static int testOpenDefault(virConnectPtr conn) { virNetworkDefFree(netdef); goto error; } - netobj->active = 1; netobj->persistent = 1; + if (!(pooldef = virStoragePoolDefParse(conn, defaultPoolXML, NULL))) + goto error; + + if (!(poolobj = virStoragePoolObjAssignDef(conn, &privconn->pools, + pooldef))) { + virStoragePoolDefFree(pooldef); + goto error; + } + if (testStoragePoolObjSetDefaults(poolobj) == -1) + goto error; + poolobj->active = 1; + return VIR_DRV_OPEN_SUCCESS; error: virDomainObjListFree(&privconn->domains); virNetworkObjListFree(&privconn->networks); + virStoragePoolObjListFree(&privconn->pools); virCapabilitiesFree(privconn->caps); VIR_FREE(privconn); return VIR_DRV_OPEN_ERROR; @@ -295,7 +369,7 @@ static int testOpenFromFile(virConnectPtr conn, char *str; xmlDocPtr xml = NULL; xmlNodePtr root = NULL; - xmlNodePtr *domains = NULL, *networks = NULL; + xmlNodePtr *domains = NULL, *networks = NULL, *pools = NULL; xmlXPathContextPtr ctxt = NULL; virNodeInfoPtr nodeInfo; virNetworkObjPtr net; @@ -311,7 +385,9 @@ static int testOpenFromFile(virConnectPtr conn, goto error; if ((fd = open(file, O_RDONLY)) < 0) { - testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("loading host definition file")); + testError(NULL, VIR_ERR_INTERNAL_ERROR, + _("loading host definition file '%s': %s"), + file, strerror(errno)); goto error; } @@ -332,7 +408,8 @@ static int testOpenFromFile(virConnectPtr conn, ctxt = xmlXPathNewContext(xml); if (ctxt == NULL) { - testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("creating xpath context")); + testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("creating xpath context")); goto error; } @@ -480,6 +557,58 @@ static int testOpenFromFile(virConnectPtr conn, if (networks != NULL) VIR_FREE(networks); + /* Parse Storage Pool list */ + ret = virXPathNodeSet(conn, "/node/pool", ctxt, &pools); + if (ret < 0) { + testError(NULL, VIR_ERR_XML_ERROR, "%s", _("node pool list")); + goto error; + } + for (i = 0 ; i < ret ; i++) { + virStoragePoolDefPtr def; + virStoragePoolObjPtr pool; + char *relFile = virXMLPropString(pools[i], "file"); + if (relFile != NULL) { + char *absFile = testBuildFilename(file, relFile); + VIR_FREE(relFile); + if (!absFile) { + testError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", + _("resolving pool filename")); + goto error; + } + + def = virStoragePoolDefParse(conn, NULL, absFile); + VIR_FREE(absFile); + if (!def) + goto error; + } else { + xmlBufferPtr buf; + xmlSaveCtxtPtr sctxt; + + buf = xmlBufferCreate(); + sctxt = xmlSaveToBuffer(buf, NULL, 0); + xmlSaveTree(sctxt, pools[i]); + xmlSaveClose(sctxt); + if ((def = virStoragePoolDefParse(conn, + (const char *) buf->content, + NULL)) == NULL) { + xmlBufferFree(buf); + goto error; + } + } + + if (!(pool = virStoragePoolObjAssignDef(conn, &privconn->pools, + def))) { + virStoragePoolDefFree(def); + goto error; + } + + if (testStoragePoolObjSetDefaults(pool) == -1) + goto error; + pool->active = 1; + } + if (pools != NULL) + VIR_FREE(pools); + xmlXPathFreeContext(ctxt); xmlFreeDoc(xml); @@ -490,10 +619,12 @@ static int testOpenFromFile(virConnectPtr conn, xmlFreeDoc(xml); VIR_FREE(domains); VIR_FREE(networks); + VIR_FREE(pools); if (fd != -1) close(fd); virDomainObjListFree(&privconn->domains); virNetworkObjListFree(&privconn->networks); + virStoragePoolObjListFree(&privconn->pools); VIR_FREE(privconn); conn->privateData = NULL; return VIR_DRV_OPEN_ERROR; @@ -545,6 +676,7 @@ static int testClose(virConnectPtr conn) virCapabilitiesFree(privconn->caps); virDomainObjListFree(&privconn->domains); virNetworkObjListFree(&privconn->networks); + virStoragePoolObjListFree(&privconn->pools); VIR_FREE (privconn); conn->privateData = conn; @@ -1475,6 +1607,26 @@ static int testNetworkSetAutostart(virNetworkPtr network, return (0); } + +/* + * Storage Driver routines + */ + +static int testStoragePoolObjSetDefaults(virStoragePoolObjPtr pool) { + + pool->def->capacity = defaultPoolCap; + pool->def->allocation = defaultPoolAlloc; + pool->def->available = defaultPoolCap - defaultPoolAlloc; + + pool->configFile = strdup("\0"); + if (!pool->configFile) { + testError(NULL, VIR_ERR_NO_MEMORY, "configFile"); + return -1; + } + + return 0; +} + static virDrvOpenStatus testStorageOpen(virConnectPtr conn, xmlURIPtr uri ATTRIBUTE_UNUSED, virConnectAuthPtr auth ATTRIBUTE_UNUSED, @@ -1491,6 +1643,566 @@ static int testStorageClose(virConnectPtr conn) { return 0; } +static virStoragePoolPtr +testStoragePoolLookupByUUID(virConnectPtr conn, + const unsigned char *uuid) { + virStoragePoolObjPtr pool = NULL; + GET_CONNECTION(conn); + + if ((pool = virStoragePoolObjFindByUUID(&privconn->pools, uuid)) == NULL) { + testError (conn, VIR_ERR_NO_STORAGE_POOL, NULL); + return NULL; + } + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static virStoragePoolPtr +testStoragePoolLookupByName(virConnectPtr conn, + const char *name) { + virStoragePoolObjPtr pool = NULL; + GET_CONNECTION(conn); + + if ((pool = virStoragePoolObjFindByName(&privconn->pools, name)) == NULL) { + testError (conn, VIR_ERR_NO_STORAGE_POOL, NULL); + return NULL; + } + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static virStoragePoolPtr +testStoragePoolLookupByVolume(virStorageVolPtr vol) { + return testStoragePoolLookupByName(vol->conn, vol->pool); +} + +static int +testStorageNumPools(virConnectPtr conn) { + + int numActive = 0, i; + GET_CONNECTION(conn); + + for (i = 0 ; i < privconn->pools.count ; i++) + if (virStoragePoolObjIsActive(privconn->pools.objs[i])) + numActive++; + + return numActive; +} + +static int +testStorageListPools(virConnectPtr conn, + char **const names, + int nnames) { + int n = 0, i; + GET_CONNECTION(conn); + + memset(names, 0, sizeof(*names)*nnames); + for (i = 0 ; i < privconn->pools.count && n < nnames ; i++) + if (virStoragePoolObjIsActive(privconn->pools.objs[i]) && + !(names[n++] = strdup(privconn->pools.objs[i]->def->name))) + goto no_memory; + + return n; + +no_memory: + testError(conn, VIR_ERR_NO_MEMORY, NULL); + for (n = 0 ; n < nnames ; n++) + VIR_FREE(names[n]); + return (-1); +} + +static int +testStorageNumDefinedPools(virConnectPtr conn) { + + int numInactive = 0, i; + GET_CONNECTION(conn); + + for (i = 0 ; i < privconn->pools.count ; i++) + if (!virStoragePoolObjIsActive(privconn->pools.objs[i])) + numInactive++; + + return numInactive; +} + +static int +testStorageListDefinedPools(virConnectPtr conn, + char **const names, + int nnames) { + int n = 0, i; + GET_CONNECTION(conn); + + memset(names, 0, sizeof(*names)*nnames); + for (i = 0 ; i < privconn->pools.count && n < nnames ; i++) + if (!virStoragePoolObjIsActive(privconn->pools.objs[i]) && + !(names[n++] = strdup(privconn->pools.objs[i]->def->name))) + goto no_memory; + + return n; + +no_memory: + testError(conn, VIR_ERR_NO_MEMORY, NULL); + for (n = 0 ; n < nnames ; n++) + VIR_FREE(names[n]); + return (-1); +} + +static int +testStoragePoolRefresh(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED); + +static int +testStoragePoolStart(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + if (testStoragePoolRefresh(obj, 0) == 0) + return -1; + privpool->active = 1; + + return 0; +} + +static char * +testStorageFindPoolSources(virConnectPtr conn ATTRIBUTE_UNUSED, + const char *type ATTRIBUTE_UNUSED, + const char *srcSpec ATTRIBUTE_UNUSED, + unsigned int flags ATTRIBUTE_UNUSED) +{ + return NULL; +} + + +static virStoragePoolPtr +testStoragePoolCreate(virConnectPtr conn, + const char *xml, + unsigned int flags ATTRIBUTE_UNUSED) { + virStoragePoolDefPtr def; + virStoragePoolObjPtr pool; + GET_CONNECTION(conn); + + if (!(def = virStoragePoolDefParse(conn, xml, NULL))) + return NULL; + + if (virStoragePoolObjFindByUUID(&privconn->pools, def->uuid) || + virStoragePoolObjFindByName(&privconn->pools, def->name)) { + testError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("storage pool already exists")); + virStoragePoolDefFree(def); + return NULL; + } + + if (!(pool = virStoragePoolObjAssignDef(conn, &privconn->pools, def))) { + virStoragePoolDefFree(def); + return NULL; + } + + if (testStoragePoolObjSetDefaults(pool) == -1) { + virStoragePoolObjRemove(&privconn->pools, pool); + return NULL; + } + pool->active = 1; + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static virStoragePoolPtr +testStoragePoolDefine(virConnectPtr conn, + const char *xml, + unsigned int flags ATTRIBUTE_UNUSED) { + virStoragePoolDefPtr def; + virStoragePoolObjPtr pool; + GET_CONNECTION(conn); + + if (!(def = virStoragePoolDefParse(conn, xml, NULL))) + return NULL; + + def->capacity = defaultPoolCap; + def->allocation = defaultPoolAlloc; + def->available = defaultPoolCap - defaultPoolAlloc; + + if (!(pool = virStoragePoolObjAssignDef(conn, &privconn->pools, def))) { + virStoragePoolDefFree(def); + return NULL; + } + + if (testStoragePoolObjSetDefaults(pool) == -1) { + virStoragePoolObjRemove(&privconn->pools, pool); + return NULL; + } + + return virGetStoragePool(conn, pool->def->name, pool->def->uuid); +} + +static int +testStoragePoolUndefine(virStoragePoolPtr obj) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + virStoragePoolObjRemove(&privconn->pools, privpool); + + return 0; +} + +static int +testStoragePoolBuild(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + return 0; +} + + +static int +testStoragePoolDestroy(virStoragePoolPtr obj) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + + privpool->active = 0; + + if (privpool->configFile == NULL) + virStoragePoolObjRemove(&privconn->pools, privpool); + + return 0; +} + + +static int +testStoragePoolDelete(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_NOT_ACTIVE(privpool, -1); + + return 0; +} + + +static int +testStoragePoolRefresh(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + + return 0; +} + + +static int +testStoragePoolGetInfo(virStoragePoolPtr obj, + virStoragePoolInfoPtr info) { + GET_POOL(obj, -1); + + memset(info, 0, sizeof(virStoragePoolInfo)); + if (privpool->active) + info->state = VIR_STORAGE_POOL_RUNNING; + else + info->state = VIR_STORAGE_POOL_INACTIVE; + info->capacity = privpool->def->capacity; + info->allocation = privpool->def->allocation; + info->available = privpool->def->available; + + return 0; +} + +static char * +testStoragePoolDumpXML(virStoragePoolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, NULL); + + return virStoragePoolDefFormat(obj->conn, privpool->def); +} + +static int +testStoragePoolGetAutostart(virStoragePoolPtr obj, + int *autostart) { + GET_POOL(obj, -1); + + if (!privpool->configFile) { + *autostart = 0; + } else { + *autostart = privpool->autostart; + } + + return 0; +} + +static int +testStoragePoolSetAutostart(virStoragePoolPtr obj, + int autostart) { + GET_POOL(obj, -1); + + if (!privpool->configFile) { + testError(obj->conn, VIR_ERR_INVALID_ARG, + "%s", _("pool has no config file")); + return -1; + } + + autostart = (autostart != 0); + + if (privpool->autostart == autostart) + return 0; + + privpool->autostart = autostart; + return 0; +} + + +static int +testStoragePoolNumVolumes(virStoragePoolPtr obj) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + + return privpool->volumes.count; +} + +static int +testStoragePoolListVolumes(virStoragePoolPtr obj, + char **const names, + int maxnames) { + GET_POOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + int i = 0, n = 0; + + memset(names, 0, maxnames); + for (i = 0 ; i < privpool->volumes.count && n < maxnames ; i++) { + if ((names[n++] = strdup(privpool->volumes.objs[i]->name)) == NULL) { + testError(obj->conn, VIR_ERR_NO_MEMORY, "%s", _("name")); + goto cleanup; + } + } + + return n; + + cleanup: + for (n = 0 ; n < maxnames ; n++) + VIR_FREE(names[i]); + + memset(names, 0, maxnames); + return -1; +} + + +static virStorageVolPtr +testStorageVolumeLookupByName(virStoragePoolPtr obj, + const char *name ATTRIBUTE_UNUSED) { + GET_POOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + virStorageVolDefPtr vol = virStorageVolDefFindByName(privpool, name); + + if (!vol) { + testError(obj->conn, VIR_ERR_INVALID_STORAGE_VOL, + _("no storage vol with matching name '%s'"), name); + return NULL; + } + + return virGetStorageVol(obj->conn, privpool->def->name, + vol->name, vol->key); +} + + +static virStorageVolPtr +testStorageVolumeLookupByKey(virConnectPtr conn, + const char *key) { + GET_CONNECTION(conn); + unsigned int i; + + for (i = 0 ; i < privconn->pools.count ; i++) { + if (virStoragePoolObjIsActive(privconn->pools.objs[i])) { + virStorageVolDefPtr vol = + virStorageVolDefFindByKey(privconn->pools.objs[i], key); + + if (vol) + return virGetStorageVol(conn, + privconn->pools.objs[i]->def->name, + vol->name, + vol->key); + } + } + + testError(conn, VIR_ERR_INVALID_STORAGE_VOL, + _("no storage vol with matching key '%s'"), key); + return NULL; +} + +static virStorageVolPtr +testStorageVolumeLookupByPath(virConnectPtr conn, + const char *path) { + GET_CONNECTION(conn); + unsigned int i; + + for (i = 0 ; i < privconn->pools.count ; i++) { + if (virStoragePoolObjIsActive(privconn->pools.objs[i])) { + virStorageVolDefPtr vol = + virStorageVolDefFindByPath(privconn->pools.objs[i], path); + + if (vol) + return virGetStorageVol(conn, + privconn->pools.objs[i]->def->name, + vol->name, + vol->key); + } + } + + testError(conn, VIR_ERR_INVALID_STORAGE_VOL, + _("no storage vol with matching path '%s'"), path); + return NULL; +} + +static virStorageVolPtr +testStorageVolumeCreateXML(virStoragePoolPtr obj, + const char *xmldesc, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + virStorageVolDefPtr vol; + + vol = virStorageVolDefParse(obj->conn, privpool->def, xmldesc, NULL); + if (vol == NULL) + return NULL; + + if (virStorageVolDefFindByName(privpool, vol->name)) { + testError(obj->conn, VIR_ERR_INVALID_STORAGE_POOL, + "%s", _("storage vol already exists")); + virStorageVolDefFree(vol); + return NULL; + } + + /* Make sure enough space */ + if ((privpool->def->allocation + vol->allocation) > + privpool->def->capacity) { + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, + _("Not enough free space in pool for volume '%s'"), + vol->name); + virStorageVolDefFree(vol); + return NULL; + } + privpool->def->available = (privpool->def->capacity - + privpool->def->allocation); + + if (VIR_REALLOC_N(privpool->volumes.objs, + privpool->volumes.count+1) < 0) { + testError(obj->conn, VIR_ERR_NO_MEMORY, NULL); + virStorageVolDefFree(vol); + return NULL; + } + + if (VIR_ALLOC_N(vol->target.path, strlen(privpool->def->target.path) + + 1 + strlen(vol->name) + 1) < 0) { + virStorageVolDefFree(vol); + testError(obj->conn, VIR_ERR_NO_MEMORY, "%s", _("target")); + return NULL; + } + + strcpy(vol->target.path, privpool->def->target.path); + strcat(vol->target.path, "/"); + strcat(vol->target.path, vol->name); + vol->key = strdup(vol->target.path); + if (vol->key == NULL) { + virStorageVolDefFree(vol); + testError(obj->conn, VIR_ERR_INTERNAL_ERROR, "%s", + _("storage vol key")); + return NULL; + } + + privpool->def->allocation += vol->allocation; + privpool->def->available = (privpool->def->capacity - + privpool->def->allocation); + + privpool->volumes.objs[privpool->volumes.count++] = vol; + + return virGetStorageVol(obj->conn, privpool->def->name, vol->name, + vol->key); +} + +static int +testStorageVolumeDelete(virStorageVolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL_FROM_VOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + GET_VOL(obj, privpool, -1); + int i; + + privpool->def->allocation -= privvol->allocation; + privpool->def->available = (privpool->def->capacity - + privpool->def->allocation); + + for (i = 0 ; i < privpool->volumes.count ; i++) { + if (privpool->volumes.objs[i] == privvol) { + virStorageVolDefFree(privvol); + + if (i < (privpool->volumes.count - 1)) + memmove(privpool->volumes.objs + i, + privpool->volumes.objs + i + 1, + sizeof(*(privpool->volumes.objs)) * + (privpool->volumes.count - (i + 1))); + + if (VIR_REALLOC_N(privpool->volumes.objs, + privpool->volumes.count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + privpool->volumes.count--; + + break; + } + } + + return 0; +} + + +static int testStorageVolumeTypeForPool(int pooltype) { + + switch(pooltype) { + case VIR_STORAGE_POOL_DIR: + case VIR_STORAGE_POOL_FS: + case VIR_STORAGE_POOL_NETFS: + return VIR_STORAGE_VOL_FILE; + default: + return VIR_STORAGE_VOL_BLOCK; + } +} + +static int +testStorageVolumeGetInfo(virStorageVolPtr obj, + virStorageVolInfoPtr info) { + GET_POOL_FROM_VOL(obj, -1); + POOL_IS_ACTIVE(privpool, -1); + GET_VOL(obj, privpool, -1); + + memset(info, 0, sizeof(*info)); + info->type = testStorageVolumeTypeForPool(privpool->def->type); + info->capacity = privvol->capacity; + info->allocation = privvol->allocation; + + return 0; +} + +static char * +testStorageVolumeGetXMLDesc(virStorageVolPtr obj, + unsigned int flags ATTRIBUTE_UNUSED) { + GET_POOL_FROM_VOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + GET_VOL(obj, privpool, NULL); + + return virStorageVolDefFormat(obj->conn, privpool->def, privvol); +} + +static char * +testStorageVolumeGetPath(virStorageVolPtr obj) { + GET_POOL_FROM_VOL(obj, NULL); + POOL_IS_ACTIVE(privpool, NULL); + GET_VOL(obj, privpool, NULL); + char *ret; + + ret = strdup(privvol->target.path); + if (ret == NULL) { + testError(obj->conn, VIR_ERR_NO_MEMORY, "%s", _("path")); + return NULL; + } + return ret; +} + static virDriver testDriver = { VIR_DRV_TEST, @@ -1575,11 +2287,42 @@ static virNetworkDriver testNetworkDriver = { testNetworkSetAutostart, /* networkSetAutostart */ }; - static virStorageDriver testStorageDriver = { .name = "Test", .open = testStorageOpen, .close = testStorageClose, + + .numOfPools = testStorageNumPools, + .listPools = testStorageListPools, + .numOfDefinedPools = testStorageNumDefinedPools, + .listDefinedPools = testStorageListDefinedPools, + .findPoolSources = testStorageFindPoolSources, + .poolLookupByName = testStoragePoolLookupByName, + .poolLookupByUUID = testStoragePoolLookupByUUID, + .poolLookupByVolume = testStoragePoolLookupByVolume, + .poolCreateXML = testStoragePoolCreate, + .poolDefineXML = testStoragePoolDefine, + .poolBuild = testStoragePoolBuild, + .poolUndefine = testStoragePoolUndefine, + .poolCreate = testStoragePoolStart, + .poolDestroy = testStoragePoolDestroy, + .poolDelete = testStoragePoolDelete, + .poolRefresh = testStoragePoolRefresh, + .poolGetInfo = testStoragePoolGetInfo, + .poolGetXMLDesc = testStoragePoolDumpXML, + .poolGetAutostart = testStoragePoolGetAutostart, + .poolSetAutostart = testStoragePoolSetAutostart, + .poolNumOfVolumes = testStoragePoolNumVolumes, + .poolListVolumes = testStoragePoolListVolumes, + + .volLookupByName = testStorageVolumeLookupByName, + .volLookupByKey = testStorageVolumeLookupByKey, + .volLookupByPath = testStorageVolumeLookupByPath, + .volCreateXML = testStorageVolumeCreateXML, + .volDelete = testStorageVolumeDelete, + .volGetInfo = testStorageVolumeGetInfo, + .volGetXMLDesc = testStorageVolumeGetXMLDesc, + .volGetPath = testStorageVolumeGetPath, }; /**

3 4

[libvirt] [PATCH] Domain Events Python Bindings
by Ben Guthro 29 Oct '08

29 Oct '08

Attached are the python bindings for domain events I have moved much of the complicated code from my prior submission out of C and into python. This required a slight change to the generator. The new convention that we came up with is to append <classname>.py to the class as it is being generated, iff that file exists. examples/domain-events/events-python/event-test.py | 186 +++++++++ python/generator.py | 16 python/libvir.c | 410 +++++++++++++++++++++ python/libvir.py | 20 + python/libvirt_wrap.h | 27 + python/types.c | 47 ++ python/virConnect.py | 46 ++ 7 files changed, 747 insertions(+), 5 deletions(-)

2 3

[libvirt] [PATCH] adding link to AMQP/QPid bindings
by Daniel Veillard 29 Oct '08

29 Oct '08

I applied this small patch to add a link to the new bindings pages under http://libvirt.org/qpid/ Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

1 0

[libvirt] PATCH: Move virRaiseError out of internal.h
by Daniel P. Berrange 29 Oct '08

29 Oct '08

This patch moves the definition for virRaiseError/virReportError out of the internal.h file, and into a newly created virterror.h file, to match naming of the virterror.c file where the implementation lives. Most code has to be updated to include virterror.h. This patch also drops the leading __ prefix on these two functions - it was pointless, since we never export it from the .so, not even for libvirtd use. The motivation for this change is to get clarity over our modularization. Every file in our source tree ultimately includes internal.h, but not everything is linking to the virterror.c file which includes the impl of virRaiseError. So it is good to avoid defining functions in header files which aren't available to those including the header. I've got a couple more patches of this type to following, so ultimately internal.h will just contain a bunch of common / useful macros and the include of the public libvirt.h file. The diffstat is large, but its mostly line noise - there's no functional change in this patch. b/src/virterror.h | 56 +++++++++++++++++++++++++++++++++ src/conf.c | 8 ++-- src/domain_conf.c | 5 +-- src/hash.c | 17 +++++----- src/internal.h | 24 -------------- src/libvirt.c | 44 +++++++++++++------------- src/lxc_conf.c | 1 src/lxc_conf.h | 2 - src/lxc_container.c | 1 src/lxc_controller.c | 2 - src/lxc_driver.c | 2 - src/network_conf.c | 5 +-- src/network_driver.c | 3 + src/nodeinfo.c | 16 ++++----- src/openvz_conf.c | 1 src/openvz_conf.h | 2 - src/openvz_driver.c | 2 - src/proxy_internal.c | 5 +-- src/qemu_conf.c | 1 src/qemu_conf.h | 2 - src/qemu_driver.c | 1 src/qparams.c | 3 + src/remote_internal.c | 70 +++++++++++++++++++++--------------------- src/sexpr.c | 4 +- src/stats_linux.c | 6 +-- src/storage_backend.c | 2 - src/storage_backend_disk.c | 2 - src/storage_backend_fs.c | 2 - src/storage_backend_iscsi.c | 2 - src/storage_backend_logical.c | 2 - src/storage_conf.c | 2 - src/storage_conf.h | 2 - src/storage_driver.c | 2 - src/test.c | 4 +- src/util.c | 4 +- src/virterror.c | 57 ++++++++++++++++------------------ src/xen_internal.c | 25 +++++++-------- src/xen_unified.c | 4 +- src/xend_internal.c | 3 + src/xm_internal.c | 3 + src/xml.c | 5 +-- src/xmlrpc.c | 6 +-- src/xs_internal.c | 4 +- 43 files changed, 228 insertions(+), 186 deletions(-) Daniel diff -r a1dc6ccb7f50 src/conf.c --- a/src/conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -18,7 +18,7 @@ #include <sys/stat.h> #include <fcntl.h> -#include "internal.h" +#include "virterror.h" #include "buf.h" #include "conf.h" #include "util.h" @@ -96,13 +96,13 @@ /* Construct the string 'filename:line: info' if we have that. */ if (ctxt && ctxt->filename) { - __virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, + virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, info, ctxt->filename, NULL, ctxt->line, 0, "%s:%d: %s", ctxt->filename, ctxt->line, info); } else { - format = __virErrorMsg(error, info); - __virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, + format = virErrorMsg(error, info); + virRaiseError(NULL, NULL, NULL, VIR_FROM_CONF, error, VIR_ERR_ERROR, info, NULL, NULL, ctxt ? ctxt->line : 0, 0, format, info); diff -r a1dc6ccb7f50 src/domain_conf.c --- a/src/domain_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/domain_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -29,8 +29,7 @@ #include <fcntl.h> #include <dirent.h> -#include "internal.h" - +#include "virterror.h" #include "domain_conf.h" #include "memory.h" #include "verify.h" @@ -142,7 +141,7 @@ "pci") #define virDomainReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_DOMAIN, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_DOMAIN, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) virDomainObjPtr virDomainFindByID(const virDomainObjListPtr doms, diff -r a1dc6ccb7f50 src/hash.c --- a/src/hash.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/hash.c Wed Oct 29 11:36:21 2008 +0000 @@ -23,7 +23,8 @@ #include <string.h> #include <stdlib.h> #include <libxml/threads.h> -#include "internal.h" + +#include "virterror.h" #include "hash.h" #include "memory.h" @@ -32,7 +33,7 @@ /* #define DEBUG_GROW */ #define virHashError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /* @@ -732,8 +733,8 @@ virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName); virResetError(&conn->err); - if (__lastErr.conn == conn) - __lastErr.conn = NULL; + if (virLastErr.conn == conn) + virLastErr.conn = NULL; VIR_FREE(conn->name); @@ -862,8 +863,8 @@ if (conn->err.dom == domain) conn->err.dom = NULL; - if (__lastErr.dom == domain) - __lastErr.dom = NULL; + if (virLastErr.dom == domain) + virLastErr.dom = NULL; domain->magic = -1; domain->id = -1; VIR_FREE(domain->name); @@ -998,8 +999,8 @@ if (conn->err.net == network) conn->err.net = NULL; - if (__lastErr.net == network) - __lastErr.net = NULL; + if (virLastErr.net == network) + virLastErr.net = NULL; network->magic = -1; VIR_FREE(network->name); diff -r a1dc6ccb7f50 src/internal.h --- a/src/internal.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/internal.h Wed Oct 29 11:36:21 2008 +0000 @@ -295,30 +295,6 @@ }; -/************************************************************************ - * * - * API for error handling * - * * - ************************************************************************/ -extern virError __lastErr; -void __virRaiseError(virConnectPtr conn, - virDomainPtr dom, - virNetworkPtr net, - int domain, - int code, - virErrorLevel level, - const char *str1, - const char *str2, - const char *str3, - int int1, int int2, const char *msg, ...) - ATTRIBUTE_FORMAT(printf, 12, 13); -const char *__virErrorMsg(virErrorNumber error, const char *info); -void __virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, - const char *filename ATTRIBUTE_UNUSED, - const char *funcname ATTRIBUTE_UNUSED, - long long linenr ATTRIBUTE_UNUSED, - const char *fmt, ...) - ATTRIBUTE_FORMAT(printf, 7, 8); /************************************************************************ * * diff -r a1dc6ccb7f50 src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 11:36:21 2008 +0000 @@ -31,7 +31,7 @@ #include <winsock2.h> #endif -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "uuid.h" @@ -325,9 +325,9 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); - __virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + errmsg = virErrorMsg(error, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -346,9 +346,9 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); - __virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_WARNING, - errmsg, info, NULL, 0, 0, errmsg, info); + errmsg = virErrorMsg(error, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_NONE, error, VIR_ERR_WARNING, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -369,12 +369,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_DOMAIN) { conn = domain->conn; } - __virRaiseError(conn, domain, NULL, VIR_FROM_DOM, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, domain, NULL, VIR_FROM_DOM, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -395,12 +395,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_NETWORK) { conn = network->conn; } - __virRaiseError(conn, NULL, network, VIR_FROM_NET, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, NULL, network, VIR_FROM_NET, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -421,12 +421,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_STORAGE_POOL) conn = pool->conn; - __virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -447,12 +447,12 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (error != VIR_ERR_INVALID_STORAGE_VOL) conn = vol->conn; - __virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, - errmsg, info, NULL, 0, 0, errmsg, info); + virRaiseError(conn, NULL, NULL, VIR_FROM_STORAGE, error, VIR_ERR_ERROR, + errmsg, info, NULL, 0, 0, errmsg, info); } /** @@ -855,13 +855,13 @@ /* If no global error was set, copy any error set in the connection object we're about to dispose of */ - if (__lastErr.code == VIR_ERR_OK) { - memcpy(&__lastErr, &ret->err, sizeof(ret->err)); + if (virLastErr.code == VIR_ERR_OK) { + memcpy(&virLastErr, &ret->err, sizeof(ret->err)); memset(&ret->err, 0, sizeof(ret->err)); } /* Still no error set, then raise a generic error */ - if (__lastErr.code == VIR_ERR_OK) + if (virLastErr.code == VIR_ERR_OK) virLibConnError (NULL, VIR_ERR_INTERNAL_ERROR, _("unable to open connection")); diff -r a1dc6ccb7f50 src/lxc_conf.c --- a/src/lxc_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -27,6 +27,7 @@ #include <sys/utsname.h> +#include "virterror.h" #include "lxc_conf.h" /* Functions */ diff -r a1dc6ccb7f50 src/lxc_conf.h --- a/src/lxc_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -50,7 +50,7 @@ virCapsPtr lxcCapsInit(void); #define lxcError(conn, dom, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_LXC, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_LXC, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) #endif /* LXC_CONF_H */ diff -r a1dc6ccb7f50 src/lxc_container.c --- a/src/lxc_container.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_container.c Wed Oct 29 11:36:21 2008 +0000 @@ -41,6 +41,7 @@ /* For MS_MOVE */ #include <linux/fs.h> +#include "virterror.h" #include "lxc_container.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/lxc_controller.c --- a/src/lxc_controller.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_controller.c Wed Oct 29 11:36:21 2008 +0000 @@ -34,7 +34,7 @@ #include <signal.h> #include <getopt.h> -#include "internal.h" +#include "virterror.h" #include "util.h" #include "lxc_conf.h" diff -r a1dc6ccb7f50 src/lxc_driver.c --- a/src/lxc_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/lxc_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -35,7 +35,7 @@ #include <unistd.h> #include <wait.h> -#include "internal.h" +#include "virterror.h" #include "lxc_conf.h" #include "lxc_container.h" #include "lxc_driver.h" diff -r a1dc6ccb7f50 src/network_conf.c --- a/src/network_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/network_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -33,8 +33,7 @@ #include <string.h> #include <dirent.h> -#include "internal.h" - +#include "virterror.h" #include "network_conf.h" #include "memory.h" #include "xml.h" @@ -50,7 +49,7 @@ "none", "nat", "route" ) #define virNetworkReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_NETWORK, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_NETWORK, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) virNetworkObjPtr virNetworkFindByUUID(const virNetworkObjListPtr nets, diff -r a1dc6ccb7f50 src/network_driver.c --- a/src/network_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/network_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -44,6 +44,7 @@ #include <sys/wait.h> #include <sys/ioctl.h> +#include "virterror.h" #include "network_driver.h" #include "network_conf.h" #include "driver.h" @@ -73,7 +74,7 @@ #define networkLog(level, msg...) fprintf(stderr, msg) #define networkReportError(conn, dom, net, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/nodeinfo.c --- a/src/nodeinfo.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/nodeinfo.c Wed Oct 29 11:36:21 2008 +0000 @@ -33,7 +33,7 @@ #include <sys/utsname.h> #endif -#include "internal.h" +#include "virterror.h" #include "nodeinfo.h" #include "physmem.h" #include "util.h" @@ -63,7 +63,7 @@ while (*buf && c_isspace(*buf)) buf++; if (*buf != ':') { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "parsing cpuinfo processor"); return -1; @@ -76,7 +76,7 @@ while (*buf && c_isspace(*buf)) buf++; if (*buf != ':' || !buf[1]) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "parsing cpuinfo cpu MHz"); return -1; @@ -92,7 +92,7 @@ while (*buf && c_isspace(*buf)) buf++; if (*buf != ':' || !buf[1]) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "parsing cpuinfo cpu cores %c", *buf); return -1; @@ -105,7 +105,7 @@ } if (!nodeinfo->cpus) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "no cpus found"); return -1; @@ -129,7 +129,7 @@ struct utsname info; if (uname(&info) < 0) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "cannot extract machine type %s", strerror(errno)); return -1; @@ -148,7 +148,7 @@ int ret; FILE *cpuinfo = fopen(CPUINFO_PATH, "r"); if (!cpuinfo) { - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "cannot open %s %s", CPUINFO_PATH, strerror(errno)); return -1; @@ -165,7 +165,7 @@ } #else /* XXX Solaris will need an impl later if they port QEMU driver */ - __virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, + virRaiseError(conn, NULL, NULL, 0, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s:%s not implemented on this platform\n", __FILE__, __FUNCTION__); return -1; diff -r a1dc6ccb7f50 src/openvz_conf.c --- a/src/openvz_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/openvz_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -43,6 +43,7 @@ #include <sys/utsname.h> #include <sys/wait.h> +#include "virterror.h" #include "openvz_conf.h" #include "uuid.h" #include "buf.h" diff -r a1dc6ccb7f50 src/openvz_conf.h --- a/src/openvz_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/openvz_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -42,7 +42,7 @@ fprintf(stderr, "\n"); } #define openvzError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_OPENVZ, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_OPENVZ, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/openvz_driver.c --- a/src/openvz_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/openvz_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -47,7 +47,7 @@ #include <stdio.h> #include <sys/wait.h> -#include "internal.h" +#include "virterror.h" #include "openvz_driver.h" #include "event.h" #include "buf.h" diff -r a1dc6ccb7f50 src/proxy_internal.c --- a/src/proxy_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/proxy_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -21,7 +21,8 @@ #include <sys/un.h> #include <sys/wait.h> #include <string.h> -#include "internal.h" + +#include "virterror.h" #include "driver.h" #include "proxy_internal.h" #include "util.h" @@ -93,7 +94,7 @@ ************************************************************************/ #define virProxyError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_PROXY, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_PROXY, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /************************************************************************ diff -r a1dc6ccb7f50 src/qemu_conf.c --- a/src/qemu_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qemu_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -40,6 +40,7 @@ #include <numa.h> #endif +#include "virterror.h" #include "qemu_conf.h" #include "uuid.h" #include "buf.h" diff -r a1dc6ccb7f50 src/qemu_conf.h --- a/src/qemu_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qemu_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -70,7 +70,7 @@ #define qemudReportError(conn, dom, net, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_QEMU, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/qemu_driver.c --- a/src/qemu_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qemu_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -52,6 +52,7 @@ #include <sched.h> #endif +#include "virterror.h" #include "qemu_driver.h" #include "qemu_conf.h" #include "c-ctype.h" diff -r a1dc6ccb7f50 src/qparams.c --- a/src/qparams.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/qparams.c Wed Oct 29 11:36:21 2008 +0000 @@ -26,12 +26,13 @@ #include <stdlib.h> #include <stdarg.h> +#include "virterror.h" #include "buf.h" #include "memory.h" #include "qparams.h" #define qparam_report_oom(void) \ - __virReportErrorHelper(NULL, VIR_FROM_NONE, VIR_ERR_NO_MEMORY, \ + virReportErrorHelper(NULL, VIR_FROM_NONE, VIR_ERR_NO_MEMORY, \ __FILE__, __FUNCTION__, __LINE__, NULL) struct qparam_set * diff -r a1dc6ccb7f50 src/remote_internal.c --- a/src/remote_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/remote_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -73,7 +73,7 @@ # define AI_ADDRCONFIG 0 #endif -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "buf.h" #include "qparams.h" @@ -3675,7 +3675,7 @@ } else if (STRCASEEQ(authtype, "polkit")) { want = REMOTE_AUTH_POLKIT; } else { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown authentication type %s"), authtype); @@ -3686,7 +3686,7 @@ type = want; } if (type == REMOTE_AUTH_NONE) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("requested authentication type %s rejected"), authtype); @@ -3726,7 +3726,7 @@ break; default: - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unsupported authentication type %d"), @@ -3756,7 +3756,7 @@ host, sizeof(host), port, sizeof(port), NI_NUMERICHOST | NI_NUMERICSERV)) != 0) { - __virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_NO_MEMORY, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Cannot resolve address %d: %s"), @@ -3765,7 +3765,7 @@ } if (VIR_ALLOC_N(addr, strlen(host) + 1 + strlen(port) + 1) < 0) { - __virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (NULL, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_NO_MEMORY, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "address"); @@ -3975,7 +3975,7 @@ /* Sets up the SASL library as a whole */ err = sasl_client_init(NULL); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("failed to initialize SASL library: %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -3985,7 +3985,7 @@ /* Get local address in form IPADDR:PORT */ salen = sizeof(sa); if (getsockname(priv->sock, (struct sockaddr*)&sa, &salen) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("failed to get sock address %d (%s)"), errno, strerror(errno)); @@ -3997,7 +3997,7 @@ /* Get remote address in form IPADDR:PORT */ salen = sizeof(sa); if (getpeername(priv->sock, (struct sockaddr*)&sa, &salen) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("failed to get peer address %d (%s)"), errno, strerror(errno)); @@ -4023,7 +4023,7 @@ &saslconn); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Failed to create SASL client context: %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4036,7 +4036,7 @@ cipher = gnutls_cipher_get(priv->session); if (!(ssf = (sasl_ssf_t)gnutls_cipher_get_key_size(cipher))) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("invalid cipher size for TLS session")); goto cleanup; @@ -4046,7 +4046,7 @@ DEBUG("Setting external SSF %d", ssf); err = sasl_setprop(saslconn, SASL_SSF_EXTERNAL, &ssf); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("cannot set external SSF %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4065,7 +4065,7 @@ err = sasl_setprop(saslconn, SASL_SEC_PROPS, &secprops); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_INTERNAL_ERROR, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("cannot set security props %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4083,7 +4083,7 @@ mechlist = iret.mechlist; if (wantmech) { if (strstr(mechlist, wantmech) == NULL) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("SASL mechanism %s not supported by server"), @@ -4103,7 +4103,7 @@ &clientoutlen, &mech); if (err != SASL_OK && err != SASL_CONTINUE && err != SASL_INTERACT) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Failed to start SASL negotiation: %d (%s)"), err, sasl_errdetail(saslconn)); @@ -4120,7 +4120,7 @@ } if ((ncred = remoteAuthMakeCredentials(interact, &cred)) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("Failed to make auth credentials")); @@ -4137,7 +4137,7 @@ } else { msg = "No authentication callback available"; } - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", msg); goto cleanup; @@ -4145,7 +4145,7 @@ VIR_FREE(iret.mechlist); if (clientoutlen > REMOTE_AUTH_SASL_DATA_MAX) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("SASL negotiation data too long: %d bytes"), clientoutlen); @@ -4185,7 +4185,7 @@ &clientout, &clientoutlen); if (err != SASL_OK && err != SASL_CONTINUE && err != SASL_INTERACT) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("Failed SASL step: %d (%s)"), err, sasl_errdetail(saslconn)); @@ -4199,7 +4199,7 @@ cred = NULL; } if ((ncred = remoteAuthMakeCredentials(interact, &cred)) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("Failed to make auth credentials")); goto cleanup; @@ -4214,7 +4214,7 @@ } else { msg = "No authentication callback available"; } - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", msg); goto cleanup; @@ -4262,7 +4262,7 @@ if (!priv->uses_tls) { err = sasl_getprop(saslconn, SASL_SSF, &val); if (err != SASL_OK) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("cannot query SASL ssf on connection %d (%s)"), err, sasl_errstring(err, NULL, NULL)); @@ -4271,7 +4271,7 @@ ssf = *(const int *)val; DEBUG("SASL SSF value %d", ssf); if (ssf < 56) { /* 56 == DES level, good for Kerberos */ - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("negotiation SSF %d was not strong enough"), ssf); goto cleanup; @@ -4325,7 +4325,7 @@ if (allowcb) { /* Run the authentication callback */ if ((*(auth->cb))(&cred, 1, auth->cbdata) < 0) { - __virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (in_open ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_AUTH_FAILED, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, "%s", _("Failed to collect auth credentials")); return -1; @@ -4509,7 +4509,7 @@ /* Check program, version, etc. are what we expect. */ if (hdr.prog != REMOTE_PROGRAM) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown program (received %x, expected %x)"), @@ -4517,7 +4517,7 @@ return -1; } if (hdr.vers != REMOTE_PROTOCOL_VERSION) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown protocol version (received %x, expected %x)"), @@ -4540,7 +4540,7 @@ goto retry_read; } if (hdr.proc != proc_nr) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown procedure (received %x, expected %x)"), @@ -4548,7 +4548,7 @@ return -1; } if (hdr.direction != REMOTE_REPLY) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown direction (received %x, expected %x)"), @@ -4556,7 +4556,7 @@ return -1; } if (hdr.serial != serial) { - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown serial (received %x, expected %x)"), hdr.serial, serial); @@ -4599,7 +4599,7 @@ return -1; default: - __virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, + virRaiseError (flags & REMOTE_CALL_IN_OPEN ? NULL : conn, NULL, NULL, VIR_FROM_REMOTE, VIR_ERR_RPC, VIR_ERR_ERROR, NULL, NULL, NULL, 0, 0, _("unknown status (received %x)"), hdr.status); @@ -4809,8 +4809,8 @@ { const char *errmsg; - errmsg = __virErrorMsg (code, info); - __virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, + errmsg = virErrorMsg (code, info); + virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, code, VIR_ERR_ERROR, errmsg, info, NULL, 0, 0, errmsg, info); } @@ -4832,8 +4832,8 @@ errorMessage[0] = '\0'; } - errmsg = __virErrorMsg (code, errorMessage); - __virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, + errmsg = virErrorMsg (code, errorMessage); + virRaiseError (conn, NULL, NULL, VIR_FROM_REMOTE, code, VIR_ERR_ERROR, errmsg, errorMessage, NULL, -1, -1, errmsg, errorMessage); @@ -4850,7 +4850,7 @@ dom = err->dom ? get_nonnull_domain (conn, *err->dom) : NULL; net = err->net ? get_nonnull_network (conn, *err->net) : NULL; - __virRaiseError (conn, dom, net, + virRaiseError (conn, dom, net, err->domain, err->code, err->level, err->str1 ? *err->str1 : NULL, err->str2 ? *err->str2 : NULL, diff -r a1dc6ccb7f50 src/sexpr.c --- a/src/sexpr.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/sexpr.c Wed Oct 29 11:36:21 2008 +0000 @@ -18,13 +18,13 @@ #include "c-ctype.h" #include <errno.h> -#include "internal.h" +#include "virterror.h" #include "sexpr.h" #include "util.h" #include "memory.h" #define virSexprError(code, fmt...) \ - __virReportErrorHelper(NULL, VIR_FROM_SEXPR, code, __FILE__, \ + virReportErrorHelper(NULL, VIR_FROM_SEXPR, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /** diff -r a1dc6ccb7f50 src/stats_linux.c --- a/src/stats_linux.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/stats_linux.c Wed Oct 29 11:36:21 2008 +0000 @@ -24,7 +24,7 @@ #include <xs.h> #endif -#include "internal.h" +#include "virterror.h" #include "util.h" #include "xen_unified.h" #include "stats_linux.h" @@ -48,13 +48,13 @@ char fullinfo[1000]; const char *errmsg; - errmsg = __virErrorMsg(error, info); + errmsg = virErrorMsg(error, info); if (func != NULL) { snprintf(fullinfo, sizeof (fullinfo) - 1, "%s: %s", func, info); fullinfo[sizeof (fullinfo) - 1] = 0; info = fullinfo; } - __virRaiseError(conn, NULL, NULL, VIR_FROM_STATS_LINUX, error, + virRaiseError(conn, NULL, NULL, VIR_FROM_STATS_LINUX, error, VIR_ERR_ERROR, errmsg, info, NULL, value, 0, errmsg, info, value); diff -r a1dc6ccb7f50 src/storage_backend.c --- a/src/storage_backend.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend.c Wed Oct 29 11:36:21 2008 +0000 @@ -41,7 +41,7 @@ #include <selinux/selinux.h> #endif -#include "internal.h" +#include "virterror.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/storage_backend_disk.c --- a/src/storage_backend_disk.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_disk.c Wed Oct 29 11:36:21 2008 +0000 @@ -25,7 +25,7 @@ #include <string.h> #include <unistd.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_disk.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/storage_backend_fs.c --- a/src/storage_backend_fs.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_fs.c Wed Oct 29 11:36:21 2008 +0000 @@ -40,7 +40,7 @@ #include <libxml/tree.h> #include <libxml/xpath.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_fs.h" #include "storage_conf.h" #include "util.h" diff -r a1dc6ccb7f50 src/storage_backend_iscsi.c --- a/src/storage_backend_iscsi.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_iscsi.c Wed Oct 29 11:36:21 2008 +0000 @@ -34,7 +34,7 @@ #include <unistd.h> #include <dirent.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_iscsi.h" #include "util.h" #include "memory.h" diff -r a1dc6ccb7f50 src/storage_backend_logical.c --- a/src/storage_backend_logical.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_backend_logical.c Wed Oct 29 11:36:21 2008 +0000 @@ -31,7 +31,7 @@ #include <unistd.h> #include <fcntl.h> -#include "internal.h" +#include "virterror.h" #include "storage_backend_logical.h" #include "storage_conf.h" #include "util.h" diff -r a1dc6ccb7f50 src/storage_conf.c --- a/src/storage_conf.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_conf.c Wed Oct 29 11:36:21 2008 +0000 @@ -38,7 +38,7 @@ #include <fcntl.h> #include <string.h> -#include "internal.h" +#include "virterror.h" #include "storage_conf.h" #include "storage_backend.h" #include "xml.h" diff -r a1dc6ccb7f50 src/storage_conf.h --- a/src/storage_conf.h Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_conf.h Wed Oct 29 11:36:21 2008 +0000 @@ -262,7 +262,7 @@ } #define virStorageReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_STORAGE, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_STORAGE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) int virStoragePoolLoadAllConfigs(virConnectPtr conn, diff -r a1dc6ccb7f50 src/storage_driver.c --- a/src/storage_driver.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/storage_driver.c Wed Oct 29 11:36:21 2008 +0000 @@ -32,7 +32,7 @@ #include <errno.h> #include <string.h> -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "util.h" #include "storage_driver.h" diff -r a1dc6ccb7f50 src/test.c --- a/src/test.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/test.c Wed Oct 29 11:36:21 2008 +0000 @@ -30,6 +30,8 @@ #include <unistd.h> #include <sys/stat.h> + +#include "virterror.h" #include "test.h" #include "buf.h" #include "util.h" @@ -113,7 +115,7 @@ #define testError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_TEST, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_TEST, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) static virCapsPtr diff -r a1dc6ccb7f50 src/util.c --- a/src/util.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/util.c Wed Oct 29 11:36:21 2008 +0000 @@ -47,7 +47,7 @@ #include <paths.h> #endif -#include "internal.h" +#include "virterror.h" #include "event.h" #include "buf.h" #include "util.h" @@ -67,7 +67,7 @@ #ifndef PROXY #define ReportError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_NONE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) int virFileStripSuffix(char *str, diff -r a1dc6ccb7f50 src/virterror.c --- a/src/virterror.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/virterror.c Wed Oct 29 11:36:21 2008 +0000 @@ -15,18 +15,17 @@ #include <string.h> #include <stdarg.h> -#include "internal.h" -#include "libvirt/virterror.h" +#include "virterror.h" -virError __lastErr = /* the last error */ +virError virLastErr = /* the last error */ { .code = 0, .domain = 0, .message = NULL, .level = VIR_ERR_NONE, .conn = NULL, .dom = NULL, .str1 = NULL, .str2 = NULL, .str3 = NULL, .int1 = 0, .int2 = 0, .net = NULL }; -static virErrorFunc virErrorHandler = NULL; /* global error handler */ -static void *virUserData = NULL; /* associated data */ +virErrorFunc virErrorHandler = NULL; /* global error handler */ +void *virUserData = NULL; /* associated data */ /* - * Macro used to format the message as a string in __virRaiseError + * Macro used to format the message as a string in virRaiseError * and borrowed from libxml2. */ #define VIR_GET_VAR_STR(msg, str) { \ @@ -74,9 +73,9 @@ virErrorPtr virGetLastError(void) { - if (__lastErr.code == VIR_ERR_OK) + if (virLastErr.code == VIR_ERR_OK) return (NULL); - return (&__lastErr); + return (&virLastErr); } /* @@ -94,10 +93,10 @@ { if (to == NULL) return (-1); - if (__lastErr.code == VIR_ERR_OK) + if (virLastErr.code == VIR_ERR_OK) return (0); - memcpy(to, &__lastErr, sizeof(virError)); - return (__lastErr.code); + memcpy(to, &virLastErr, sizeof(virError)); + return (virLastErr.code); } /** @@ -126,7 +125,7 @@ void virResetLastError(void) { - virResetError(&__lastErr); + virResetError(&virLastErr); } /** @@ -331,7 +330,7 @@ } /** - * __virRaiseError: + * virRaiseError: * @conn: the connection to the hypervisor if available * @dom: the domain if available * @net: the network if available @@ -350,12 +349,12 @@ * immediately if a callback is found and store it for later handling. */ void -__virRaiseError(virConnectPtr conn, virDomainPtr dom, virNetworkPtr net, - int domain, int code, virErrorLevel level, - const char *str1, const char *str2, const char *str3, - int int1, int int2, const char *msg, ...) +virRaiseError(virConnectPtr conn, virDomainPtr dom, virNetworkPtr net, + int domain, int code, virErrorLevel level, + const char *str1, const char *str2, const char *str3, + int int1, int int2, const char *msg, ...) { - virErrorPtr to = &__lastErr; + virErrorPtr to = &virLastErr; void *userData = virUserData; virErrorFunc handler = virErrorHandler; char *str; @@ -414,7 +413,7 @@ } /** - * __virErrorMsg: + * virErrorMsg: * @error: the virErrorNumber * @info: usually the first parameter string * @@ -424,7 +423,7 @@ * Returns the constant string associated to @error */ const char * -__virErrorMsg(virErrorNumber error, const char *info) +virErrorMsg(virErrorNumber error, const char *info) { const char *errmsg = NULL; @@ -724,7 +723,7 @@ } /** - * __virReportErrorHelper + * virReportErrorHelper * * @conn: the connection to the hypervisor if available * @dom: the domain if available @@ -740,11 +739,11 @@ * Helper function to do most of the grunt work for individual driver * ReportError */ -void __virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, - const char *filename ATTRIBUTE_UNUSED, - const char *funcname ATTRIBUTE_UNUSED, - long long linenr ATTRIBUTE_UNUSED, - const char *fmt, ...) +void virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, + const char *filename ATTRIBUTE_UNUSED, + const char *funcname ATTRIBUTE_UNUSED, + long long linenr ATTRIBUTE_UNUSED, + const char *fmt, ...) { va_list args; char errorMessage[1024]; @@ -758,8 +757,8 @@ errorMessage[0] = '\0'; } - virerr = __virErrorMsg(errcode, (errorMessage[0] ? errorMessage : NULL)); - __virRaiseError(conn, NULL, NULL, domcode, errcode, VIR_ERR_ERROR, - virerr, errorMessage, NULL, -1, -1, virerr, errorMessage); + virerr = virErrorMsg(errcode, (errorMessage[0] ? errorMessage : NULL)); + virRaiseError(conn, NULL, NULL, domcode, errcode, VIR_ERR_ERROR, + virerr, errorMessage, NULL, -1, -1, virerr, errorMessage); } diff -r a1dc6ccb7f50 src/virterror.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/virterror.h Wed Oct 29 11:36:21 2008 +0000 @@ -0,0 +1,56 @@ +/* + * virterror.h: internal error handling + * + * Copyright (C) 2006-2008 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __VIRT_ERROR_H_ +#define __VIRT_ERROR_H_ + +#include "internal.h" + +extern virError virLastErr; +extern virErrorFunc virErrorHandler; +extern void *virUserData; + +/************************************************************************ + * * + * API for error handling * + * * + ************************************************************************/ +void virRaiseError(virConnectPtr conn, + virDomainPtr dom, + virNetworkPtr net, + int domain, + int code, + virErrorLevel level, + const char *str1, + const char *str2, + const char *str3, + int int1, int int2, const char *msg, ...) + ATTRIBUTE_FORMAT(printf, 12, 13); +const char *virErrorMsg(virErrorNumber error, const char *info); +void virReportErrorHelper(virConnectPtr conn, int domcode, int errcode, + const char *filename ATTRIBUTE_UNUSED, + const char *funcname ATTRIBUTE_UNUSED, + long long linenr ATTRIBUTE_UNUSED, + const char *fmt, ...) + ATTRIBUTE_FORMAT(printf, 7, 8); + + +#endif diff -r a1dc6ccb7f50 src/xen_internal.c --- a/src/xen_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xen_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -26,11 +26,6 @@ #include <errno.h> #include <sys/utsname.h> -#include "xs_internal.h" -#include "stats_linux.h" -#include "xend_internal.h" -#include "util.h" - /* required for dom0_getdomaininfo_t */ #include <xen/dom0_ops.h> #include <xen/version.h> @@ -45,6 +40,14 @@ /* required for shutdown flags */ #include <xen/sched.h> +#include "virterror.h" +#include "driver.h" +#include "util.h" +#include "xen_unified.h" +#include "xen_internal.h" +#include "xs_internal.h" +#include "stats_linux.h" +#include "xend_internal.h" #include "buf.h" #include "capabilities.h" #include "memory.h" @@ -653,10 +656,6 @@ }; typedef struct xen_op_v2_dom xen_op_v2_dom; -#include "internal.h" -#include "driver.h" -#include "xen_unified.h" -#include "xen_internal.h" #ifdef __linux__ #define XEN_HYPERVISOR_SOCKET "/proc/xen/privcmd" @@ -720,7 +719,7 @@ #define virXenError(conn, code, fmt...) \ if (in_init == 0) \ - __virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) #ifndef PROXY @@ -747,15 +746,15 @@ return; - errmsg = __virErrorMsg(error, info); + errmsg =virErrorMsg(error, info); if (func != NULL) { snprintf(fullinfo, 999, "%s: %s", func, info); fullinfo[999] = 0; - __virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, + virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, errmsg, fullinfo, NULL, value, 0, errmsg, fullinfo, value); } else { - __virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, + virRaiseError(conn, NULL, NULL, VIR_FROM_XEN, error, VIR_ERR_ERROR, errmsg, info, NULL, value, 0, errmsg, info, value); } diff -r a1dc6ccb7f50 src/xen_unified.c --- a/src/xen_unified.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xen_unified.c Wed Oct 29 11:36:21 2008 +0000 @@ -27,7 +27,7 @@ #include <xen/dom0_ops.h> #include <libxml/uri.h> -#include "internal.h" +#include "virterror.h" #include "xen_unified.h" @@ -59,7 +59,7 @@ }; #define xenUnifiedError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XEN, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /* diff -r a1dc6ccb7f50 src/xend_internal.c --- a/src/xend_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xend_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -32,6 +32,7 @@ #include <libxml/uri.h> #include <errno.h> +#include "virterror.h" #include "xend_internal.h" #include "driver.h" #include "util.h" @@ -105,7 +106,7 @@ #endif #define virXendError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XEND, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XEND, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) #define virXendErrorInt(conn, code, ival) \ diff -r a1dc6ccb7f50 src/xm_internal.c --- a/src/xm_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xm_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -35,6 +35,7 @@ #include <stdint.h> #include <xen/dom0_ops.h> +#include "virterror.h" #include "xm_internal.h" #include "xen_unified.h" #include "xend_internal.h" @@ -123,7 +124,7 @@ }; #define xenXMError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XENXM, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XENXM, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) int diff -r a1dc6ccb7f50 src/xml.c --- a/src/xml.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xml.c Wed Oct 29 11:36:21 2008 +0000 @@ -16,14 +16,15 @@ #include <stdarg.h> #include <limits.h> #include <math.h> /* for isnan() */ -#include "internal.h" + +#include "virterror.h" #include "xml.h" #include "buf.h" #include "util.h" #include "memory.h" #define virXMLError(conn, code, fmt...) \ - __virReportErrorHelper(conn, VIR_FROM_XML, code, __FILE__, \ + virReportErrorHelper(conn, VIR_FROM_XML, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) diff -r a1dc6ccb7f50 src/xmlrpc.c --- a/src/xmlrpc.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xmlrpc.c Wed Oct 29 11:36:21 2008 +0000 @@ -11,7 +11,7 @@ #include <config.h> #include "xmlrpc.h" -#include "internal.h" +#include "virterror.h" #include "memory.h" #include <libxml/nanohttp.h> @@ -41,8 +41,8 @@ if (error == VIR_ERR_OK) return; - errmsg = __virErrorMsg(error, info); - __virRaiseError(NULL, NULL, NULL, VIR_FROM_RPC, error, VIR_ERR_ERROR, + errmsg = virErrorMsg(error, info); + virRaiseError(NULL, NULL, NULL, VIR_FROM_RPC, error, VIR_ERR_ERROR, errmsg, info, NULL, value, 0, errmsg, info, value); } diff -r a1dc6ccb7f50 src/xs_internal.c --- a/src/xs_internal.c Wed Oct 29 11:29:16 2008 +0000 +++ b/src/xs_internal.c Wed Oct 29 11:36:21 2008 +0000 @@ -26,7 +26,7 @@ #include <xs.h> -#include "internal.h" +#include "virterror.h" #include "driver.h" #include "xen_unified.h" #include "xs_internal.h" @@ -88,7 +88,7 @@ #endif /* ! PROXY */ #define virXenStoreError(conn, code, fmt...) \ - __virReportErrorHelper(NULL, VIR_FROM_XENSTORE, code, __FILE__, \ + virReportErrorHelper(NULL, VIR_FROM_XENSTORE, code, __FILE__, \ __FUNCTION__, __LINE__, fmt) /************************************************************************ -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 3

[libvirt] [RFC] sVirt v0.10 - initial prototype
by James Morris 29 Oct '08

29 Oct '08

This is a request for comments on the initial prototype release of sVirt, a project to add security labeling support to Linux-based virtualization. Project page: http://www.selinuxproject.org/page/SVirt Previous libvirt discussions: High-level requirements: https://www.redhat.com/archives/libvir-list/2008-August/msg00255.html XML security labels: https://www.redhat.com/archives/libvir-list/2008-August/msg00740.html A patch for libvirt is attached; and also included in a release tarball at http://namei.org/svirt/. See 'readme.txt' there for more details on building and running the code. The purpose of this release is to establish a proof of concept of applying security labels to VMs, and for discussion of the underlying technical approach. With this release, it is possible to define a security label for a kvm/qemu domain in its XML configuration ('virsh edit'), launch the domain and have it transition to the specified security label ('virsh start'), then query the security label of the running domain ('virsh dominfo'). The following changes were made to libvirt: 1. Implementing a pluggable security label driver framework; 2. Implementing an SELinux security label driver for (1); 3. Wiring the security label framework into the Qemu driver; 4. Implementing basic libvirt API calls for initializing the driver, and getting/setting domain security labels; 5. Extending the domain XML configuration to include security labels; 6. Adding domain security label display/edit/dump support to virsh. One of the design principles I've followed with this is to reduce or eliminate configuration wherever possible. If a variety of security labeling drivers are present, libvirtd automatically detects which one to enable and enables it. e.g. if SELinux is enabled on the system, the SELinux labeling driver is enabled automatically when livbirtd starts. Another is to treat security labels as opaque unless they're actually being used for security purposes (e.g. to launch the domain). So, virsh and the domain configuration code currently do not need to semantically interpet security labels, just understand their format. This should suit the initial simple goal of isolated domains, which only requires security labels to be distinct. The domain security label configuration format is as follows: # virsh dumpxml sys1 <domain> .... <seclabel model='selinux'> <label>system_u:system_r:virtd_t:s0</label> <policytype>targeted</policytype> </seclabel> </domain> It's possible to query the security label of a running domain via virsh: # virsh dominfo sys1 Id: 1 Name: sys1 UUID: fa3c8e06-0877-2a08-06fd-f2479b7bacb4 OS Type: hvm State: running CPU(s): 1 CPU time: 11.4s Max memory: 524288 kB Used memory: 524288 kB Autostart: disable Security label: system_u:system_r:virtd_t:s0 (selinux/targeted/enforcing) The security label is deterimed via the new virDomainGetSecLabel() API method, which is transported over RPC to the backend driver (qemu in this case), and is entirely independent of the local security model, if any. e.g. this command could be run remotely from an entirely different platform: you just see what's happening on the remote system, as with other attributes of the domain. Feedback on the design thus far is sought before proceeding to more comprehensive integration. In particular, I'd be interested in any thoughts on the placement of the security labeling driver within libvirt, as this seems to be the most critical architectural issue (I've already refactored this aspect once). Currently, the idea is to attach the security labeling driver to the virt driver, rather than implement it independently as a top-level component as in the case of other types of drivers (e.g. storage). This is because process-based security labeling is highly dependent on the kind of virtualization in use, and may not make sense at all in some cases (e.g. when using a non-Linux hypervisor, or containers). In the case of qemu, a security labeling driver is added to qemud: @@ -63,6 +64,7 @@ struct qemud_driver { char *vncListen; virCapsPtr caps; + virSecLabelDriverPtr secLabelDriver; }; and then initialized during qemud startup from qemudSecLabelInit(). During initialization, any available security labeling drivers are probed, and the first one which thinks it should be used is installed. Top-level libvirt API calls are then dispatched to the active security labeling driver via the backend virt driver, as necessary. Note that the security labeling framework in this release is always built-in -- it can be made a compile-time option later if desired. Requirements not yet addressed include: - Labeling of resources and generally comprehensive labeling management - Automatic labeling (e.g. for the simple isolation use-case) - Integration of labeling support into higher-level management tools such as virt-manager - Integration with the audit subsystem to help with administration and debugging - Domain of interpretation (DOI) checking/translation - Python bindings As mentioned, the goal at this stage is to get feedback on the underlying design: comments welcome! - James -- James Morris <jmorris(a)namei.org>

7 18

[libvirt] [PATCH] qemu/kvm: allow to hotadd scsi/virtio disks
by Guido Günther 29 Oct '08

29 Oct '08

Hi, recent kvm allows to hot add scsi/virtio disks, it uses pci hotplugging for that. Attached patch adds support for this to libvirt. -- Guido

3 10

[libvirt] [PATCH] fix memory leak in __virStringListFree
by David Lively 29 Oct '08

29 Oct '08

Currently __virStringListFree is freeing only the list nodes, but not the strings on the list (and neither is anyone else freeing these). This small patch fixes that, and documents the two __virStringList functions. Dave

2 1

[libvirt] [PATCH] fix JNI flags in libvirt-java build
by David Lively 29 Oct '08

29 Oct '08

This tiny patch adds $LIBVIRT_CFLAGS to the flags used when compiling the Java Native Interface C code in libvirt-java. This allows one to build, for example, against a local (non-installed) libvirt tree. Dave

2 1

[libvirt] [RFC] domain-events-python
by Ben Guthro 29 Oct '08

29 Oct '08

Attached is a preliminary patch implementing the python bindings for domain events, and the EventImpl code. This implements a python test app equivalent to the code in the C event-test app. Contrary to what Daniel B originally suggested, I thought that the EventImpl would be useful to expose for apps that are strictly using python, and not integrating with glib, or another event loop. It also makes the test case easier to debug. I have not marked this with [PATCH] in the subject, as I don't believe it is quite complete. I am still having a few issues with the Refcounting in the C code, and I think there is still some cleanup code I haven't quite handled quite right. That said - I would welcome some comments/suggestions on this thus far, to make sure I'm not going off in a direction contrary to where you think I should be. examples/domain-events/events-python/event-test.py | 187 ++++++++ python/generator.py | 8 python/libvir.c | 454 +++++++++++++++++++++ python/libvir.py | 20 python/libvirt_wrap.h | 27 + python/types.c | 48 ++ 6 files changed, 740 insertions(+), 4 deletions(-)

3 4

[libvirt] PATCH: Move domain event helpers out of internal.h/libvirt.c
by Daniel P. Berrange 29 Oct '08

29 Oct '08

There are a bunch of helper functions relating to domain events, which are only used internally by hypervisor drivers. Following the principle that libvirt.c should only contain functions exported in the API, and internal.h should not define any function signatures, these helpers need to move. So I'm inventing a domain_events.c, and domain_events.h file to contain the domain events helper code, in much same way as domain_conf.c and domain_conf.h contain the domain XML helper code. Again no functional change here. With this patch applied, the cleanup of internal.h is basically complete - at least more than good enough for now. It'd be nice to move the struct definitions of virDomainPtr, etc elsewhere, perhaps to src/libvirt.h because they're public API, but not exported publically. b/src/domain_event.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++++++ b/src/domain_event.h | 83 ++++++++++++++++++ qemud/event.c | 8 - qemud/event.h | 7 + src/Makefile.am | 1 src/internal.h | 73 --------------- src/libvirt.c | 201 ------------------------------------------- src/qemu_conf.h | 1 src/remote_internal.c | 1 9 files changed, 326 insertions(+), 278 deletions(-) Daniel diff -r 0325a25d1762 qemud/event.c --- a/qemud/event.c Wed Oct 29 11:48:08 2008 +0000 +++ b/qemud/event.c Wed Oct 29 12:03:29 2008 +0000 @@ -489,7 +489,7 @@ } int -__virEventHandleTypeToPollEvent(virEventHandleType events) +virEventHandleTypeToPollEvent(int events) { int ret = 0; if(events & VIR_EVENT_HANDLE_READABLE) @@ -503,10 +503,10 @@ return ret; } -virEventHandleType -__virPollEventToEventHandleType(int events) +int +virPollEventToEventHandleType(int events) { - virEventHandleType ret = 0; + int ret = 0; if(events & POLLIN) ret |= VIR_EVENT_HANDLE_READABLE; if(events & POLLOUT) diff -r 0325a25d1762 qemud/event.h --- a/qemud/event.h Wed Oct 29 11:48:08 2008 +0000 +++ b/qemud/event.h Wed Oct 29 12:03:29 2008 +0000 @@ -105,4 +105,11 @@ */ int virEventRunOnce(void); +int +virEventHandleTypeToPollEvent(int events); +int +virPollEventToEventHandleType(int events); + + + #endif /* __VIRTD_EVENT_H__ */ diff -r 0325a25d1762 src/Makefile.am --- a/src/Makefile.am Wed Oct 29 11:48:08 2008 +0000 +++ b/src/Makefile.am Wed Oct 29 12:03:29 2008 +0000 @@ -150,6 +150,7 @@ hash.c hash.h \ internal.h \ libvirt.c \ + domain_event.c domain_event.h \ $(GENERIC_LIB_SOURCES) \ $(DOMAIN_CONF_SOURCES) \ $(NETWORK_CONF_SOURCES) \ diff -r 0325a25d1762 src/domain_event.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/domain_event.c Wed Oct 29 12:03:29 2008 +0000 @@ -0,0 +1,229 @@ +/* + * domain_event.c: domain event queue processing helpers + * + * Copyright (C) 2008 VirtualIron + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Ben Guthro + */ + +#include <config.h> + +#include "domain_event.h" +#include "libvirt.h" +#include "memory.h" + + +/** + * virDomainEventCallbackListFree: + * @list: event callback list head + * + * Free the memory in the domain event callback list + */ +void +virDomainEventCallbackListFree(virDomainEventCallbackListPtr list) +{ + int i; + for (i=0; i<list->count; i++) { + VIR_FREE(list->callbacks[i]); + } + VIR_FREE(list); +} +/** + * virDomainEventCallbackListRemove: + * @conn: pointer to the connection + * @cbList: the list + * @callback: the callback to remove + * + * Internal function to remove a callback from a virDomainEventCallbackListPtr + */ +int +virDomainEventCallbackListRemove(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback) +{ + int i; + for (i = 0 ; i < cbList->count ; i++) { + if(cbList->callbacks[i]->cb == callback && + cbList->callbacks[i]->conn == conn) { + virUnrefConnect(cbList->callbacks[i]->conn); + VIR_FREE(cbList->callbacks[i]); + + if (i < (cbList->count - 1)) + memmove(cbList->callbacks + i, + cbList->callbacks + i + 1, + sizeof(*(cbList->callbacks)) * + (cbList->count - (i + 1))); + + if (VIR_REALLOC_N(cbList->callbacks, + cbList->count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + cbList->count--; + + return 0; + } + } + return -1; +} + +/** + * virDomainEventCallbackListAdd: + * @conn: pointer to the connection + * @cbList: the list + * @callback: the callback to add + * @opaque: opaque data tio pass to callback + * + * Internal function to add a callback from a virDomainEventCallbackListPtr + */ +int +virDomainEventCallbackListAdd(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback, + void *opaque) +{ + virDomainEventCallbackPtr event; + int n; + + /* Check incoming */ + if ( !cbList ) { + return -1; + } + + /* check if we already have this callback on our list */ + for (n=0; n < cbList->count; n++) { + if(cbList->callbacks[n]->cb == callback && + conn == cbList->callbacks[n]->conn) { + DEBUG0("WARNING: Callback already tracked"); + return -1; + } + } + /* Allocate new event */ + if (VIR_ALLOC(event) < 0) { + DEBUG0("Error allocating event"); + return -1; + } + event->conn = conn; + event->cb = callback; + event->opaque = opaque; + + /* Make space on list */ + n = cbList->count; + if (VIR_REALLOC_N(cbList->callbacks, n + 1) < 0) { + DEBUG0("Error reallocating list"); + VIR_FREE(event); + return -1; + } + + event->conn->refs++; + + cbList->callbacks[n] = event; + cbList->count++; + return 0; +} + +/** + * virDomainEventQueueFree: + * @queue: pointer to the queue + * + * Free the memory in the queue. We process this like a list here + */ +void +virDomainEventQueueFree(virDomainEventQueuePtr queue) +{ + int i; + for ( i=0 ; i<queue->count ; i++ ) { + VIR_FREE(queue->events[i]); + } + VIR_FREE(queue); +} + +/** + * virDomainEventCallbackQueuePop: + * @evtQueue: the queue of events + * + * Internal function to pop off, and return the front of the queue + * NOTE: The caller is responsible for freeing the returned object + * + * Returns: virDomainEventPtr on success NULL on failure. + */ +virDomainEventPtr +virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue) +{ + virDomainEventPtr ret; + + if(!evtQueue || evtQueue->count == 0 ) + return NULL; + + ret = evtQueue->events[0]; + + memmove(evtQueue->events, + evtQueue->events + 1, + sizeof(*(evtQueue->events)) * + (evtQueue->count - 1)); + + if (VIR_REALLOC_N(evtQueue->events, + evtQueue->count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + evtQueue->count--; + + return ret; +} + +/** + * virDomainEventCallbackQueuePush: + * @evtQueue: the dom event queue + * @dom: the domain to add + * @event: the event to add + * + * Internal function to push onto the back of an virDomainEventQueue + * + * Returns: 0 on success, -1 on failure + */ +int +virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, + virDomainPtr dom, + virDomainEventType event) +{ + virDomainEventPtr domEvent; + + /* Check incoming */ + if ( !evtQueue ) { + return -1; + } + + /* Allocate new event */ + if (VIR_ALLOC(domEvent) < 0) { + DEBUG0("Error allocating event"); + return -1; + } + domEvent->dom = dom; + domEvent->event = event; + + /* Make space on queue */ + if (VIR_REALLOC_N(evtQueue->events, + evtQueue->count + 1) < 0) { + DEBUG0("Error reallocating queue"); + VIR_FREE(domEvent); + return -1; + } + + evtQueue->events[evtQueue->count] = domEvent; + evtQueue->count++; + return 0; +} + diff -r 0325a25d1762 src/domain_event.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/domain_event.h Wed Oct 29 12:03:29 2008 +0000 @@ -0,0 +1,83 @@ +/* + * domain_event.h: domain event queue processing helpers + * + * Copyright (C) 2008 VirtualIron + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Author: Ben Guthro + */ + +#include "internal.h" + + +#ifndef __DOMAIN_EVENT_H__ +#define __DOMAIN_EVENT_H__ + +struct _virDomainEventCallback { + virConnectPtr conn; + virConnectDomainEventCallback cb; + void *opaque; +}; +typedef struct _virDomainEventCallback virDomainEventCallback; +typedef virDomainEventCallback *virDomainEventCallbackPtr; + +struct _virDomainEventCallbackList { + unsigned int count; + virDomainEventCallbackPtr *callbacks; +}; +typedef struct _virDomainEventCallbackList virDomainEventCallbackList; +typedef virDomainEventCallbackList *virDomainEventCallbackListPtr; + +void virDomainEventCallbackListFree(virDomainEventCallbackListPtr list); + +int virDomainEventCallbackListAdd(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback, + void *opaque); + +int virDomainEventCallbackListRemove(virConnectPtr conn, + virDomainEventCallbackListPtr cbList, + virConnectDomainEventCallback callback); + +/** + * Dispatching domain events that come in while + * in a call / response rpc + */ +struct _virDomainEvent { + virDomainPtr dom; + virDomainEventType event; +}; +typedef struct _virDomainEvent virDomainEvent; +typedef virDomainEvent *virDomainEventPtr; + +struct _virDomainEventQueue { + unsigned int count; + virDomainEventPtr *events; +}; +typedef struct _virDomainEventQueue virDomainEventQueue; +typedef virDomainEventQueue *virDomainEventQueuePtr; + +int virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, + virDomainPtr dom, + virDomainEventType event); + +virDomainEventPtr +virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue); + +void virDomainEventQueueFree(virDomainEventQueuePtr queue); + + +#endif diff -r 0325a25d1762 src/internal.h --- a/src/internal.h Wed Oct 29 11:48:08 2008 +0000 +++ b/src/internal.h Wed Oct 29 12:03:29 2008 +0000 @@ -294,77 +294,4 @@ char key[PATH_MAX]; /* unique key for storage vol */ }; - -/** - * Domain Event Notification - */ - -struct _virDomainEventCallback { - virConnectPtr conn; - virConnectDomainEventCallback cb; - void *opaque; -}; -typedef struct _virDomainEventCallback virDomainEventCallback; -typedef virDomainEventCallback *virDomainEventCallbackPtr; - -struct _virDomainEventCallbackList { - unsigned int count; - virDomainEventCallbackPtr *callbacks; -}; -typedef struct _virDomainEventCallbackList virDomainEventCallbackList; -typedef virDomainEventCallbackList *virDomainEventCallbackListPtr; - -void __virDomainEventCallbackListFree(virDomainEventCallbackListPtr list); -#define virDomainEventCallbackListFree(x) __virDomainEventCallbackListFree(x) - -int __virDomainEventCallbackListAdd(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback, - void *opaque); -#define virDomainEventCallbackListAdd(a,b,c,d) \ - __virDomainEventCallbackListAdd((a),(b),(c),(d)) - -int __virDomainEventCallbackListRemove(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback); -#define virDomainEventCallbackListRemove(a,b,c) \ - __virDomainEventCallbackListRemove((a),(b),(c)) - -int __virEventHandleTypeToPollEvent(virEventHandleType events); -#define virEventHandleTypeToPollEvent(x) __virEventHandleTypeToPollEvent(x) - -virEventHandleType __virPollEventToEventHandleType(int events); -#define virPollEventToEventHandleType(x) __virPollEventToEventHandleType(x) - -/** - * Dispatching domain events that come in while - * in a call / response rpc - */ -struct _virDomainEvent { - virDomainPtr dom; - virDomainEventType event; -}; -typedef struct _virDomainEvent virDomainEvent; -typedef virDomainEvent *virDomainEventPtr; - -struct _virDomainEventQueue { - unsigned int count; - virDomainEventPtr *events; -}; -typedef struct _virDomainEventQueue virDomainEventQueue; -typedef virDomainEventQueue *virDomainEventQueuePtr; - -int __virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, - virDomainPtr dom, - virDomainEventType event); -#define virDomainEventCallbackQueuePush(a,b,c) \ - __virDomainEventCallbackQueuePush((a),(b),(c)) - -virDomainEventPtr -__virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue); -#define virDomainEventCallbackQueuePop(x) __virDomainEventCallbackQueuePop(x) - -void __virDomainEventQueueFree(virDomainEventQueuePtr queue); -#define virDomainEventQueueFree(x) __virDomainEventQueueFree(x) - #endif /* __VIR_INTERNAL_H__ */ diff -r 0325a25d1762 src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:48:08 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 12:03:29 2008 +0000 @@ -5371,207 +5371,6 @@ return -1; } -/** - * __virDomainEventCallbackListFree: - * @list: event callback list head - * - * Free the memory in the domain event callback list - */ -void -__virDomainEventCallbackListFree(virDomainEventCallbackListPtr list) -{ - int i; - for (i=0; i<list->count; i++) { - VIR_FREE(list->callbacks[i]); - } - VIR_FREE(list); -} -/** - * __virDomainEventCallbackListRemove: - * @conn: pointer to the connection - * @cbList: the list - * @callback: the callback to remove - * - * Internal function to remove a callback from a virDomainEventCallbackListPtr - */ -int -__virDomainEventCallbackListRemove(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback) -{ - int i; - for (i = 0 ; i < cbList->count ; i++) { - if(cbList->callbacks[i]->cb == callback && - cbList->callbacks[i]->conn == conn) { - virUnrefConnect(cbList->callbacks[i]->conn); - VIR_FREE(cbList->callbacks[i]); - - if (i < (cbList->count - 1)) - memmove(cbList->callbacks + i, - cbList->callbacks + i + 1, - sizeof(*(cbList->callbacks)) * - (cbList->count - (i + 1))); - - if (VIR_REALLOC_N(cbList->callbacks, - cbList->count - 1) < 0) { - ; /* Failure to reduce memory allocation isn't fatal */ - } - cbList->count--; - - return 0; - } - } - return -1; -} - -/** - * __virDomainEventCallbackListAdd: - * @conn: pointer to the connection - * @cbList: the list - * @callback: the callback to add - * @opaque: opaque data tio pass to callback - * - * Internal function to add a callback from a virDomainEventCallbackListPtr - */ -int -__virDomainEventCallbackListAdd(virConnectPtr conn, - virDomainEventCallbackListPtr cbList, - virConnectDomainEventCallback callback, - void *opaque) -{ - virDomainEventCallbackPtr event; - int n; - - /* Check incoming */ - if ( !cbList ) { - return -1; - } - - /* check if we already have this callback on our list */ - for (n=0; n < cbList->count; n++) { - if(cbList->callbacks[n]->cb == callback && - conn == cbList->callbacks[n]->conn) { - DEBUG0("WARNING: Callback already tracked"); - return -1; - } - } - /* Allocate new event */ - if (VIR_ALLOC(event) < 0) { - DEBUG0("Error allocating event"); - return -1; - } - event->conn = conn; - event->cb = callback; - event->opaque = opaque; - - /* Make space on list */ - n = cbList->count; - if (VIR_REALLOC_N(cbList->callbacks, n + 1) < 0) { - DEBUG0("Error reallocating list"); - VIR_FREE(event); - return -1; - } - - event->conn->refs++; - - cbList->callbacks[n] = event; - cbList->count++; - return 0; -} - -/** - * __virDomainEventQueueFree: - * @queue: pointer to the queue - * - * Free the memory in the queue. We process this like a list here - */ -void -__virDomainEventQueueFree(virDomainEventQueuePtr queue) -{ - int i; - for ( i=0 ; i<queue->count ; i++ ) { - VIR_FREE(queue->events[i]); - } - VIR_FREE(queue); -} - -/** - * __virDomainEventCallbackQueuePop: - * @evtQueue: the queue of events - * - * Internal function to pop off, and return the front of the queue - * NOTE: The caller is responsible for freeing the returned object - * - * Returns: virDomainEventPtr on success NULL on failure. - */ -virDomainEventPtr -__virDomainEventCallbackQueuePop(virDomainEventQueuePtr evtQueue) -{ - virDomainEventPtr ret; - - if(!evtQueue || evtQueue->count == 0 ) - return NULL; - - ret = evtQueue->events[0]; - - memmove(evtQueue->events, - evtQueue->events + 1, - sizeof(*(evtQueue->events)) * - (evtQueue->count - 1)); - - if (VIR_REALLOC_N(evtQueue->events, - evtQueue->count - 1) < 0) { - ; /* Failure to reduce memory allocation isn't fatal */ - } - evtQueue->count--; - - return ret; -} - -/** - * __virDomainEventCallbackQueuePush: - * @evtQueue: the dom event queue - * @dom: the domain to add - * @event: the event to add - * - * Internal function to push onto the back of an virDomainEventQueue - * - * Returns: 0 on success, -1 on failure - */ -int -__virDomainEventCallbackQueuePush(virDomainEventQueuePtr evtQueue, - virDomainPtr dom, - virDomainEventType event) -{ - virDomainEventPtr domEvent; - - /* Check incoming */ - if ( !evtQueue ) { - return -1; - } - - /* Allocate new event */ - if (VIR_ALLOC(domEvent) < 0) { - DEBUG0("Error allocating event"); - return -1; - } - domEvent->dom = dom; - domEvent->event = event; - - /* Make space on queue */ - if (VIR_REALLOC_N(evtQueue->events, - evtQueue->count + 1) < 0) { - DEBUG0("Error reallocating queue"); - VIR_FREE(domEvent); - return -1; - } - - evtQueue->events[evtQueue->count] = domEvent; - evtQueue->count++; - return 0; -} - - /************************************************************************ * * diff -r 0325a25d1762 src/qemu_conf.h --- a/src/qemu_conf.h Wed Oct 29 11:48:08 2008 +0000 +++ b/src/qemu_conf.h Wed Oct 29 12:03:29 2008 +0000 @@ -31,6 +31,7 @@ #include "capabilities.h" #include "network_conf.h" #include "domain_conf.h" +#include "domain_event.h" #define qemudDebug(fmt, ...) do {} while(0) diff -r 0325a25d1762 src/remote_internal.c --- a/src/remote_internal.c Wed Oct 29 11:48:08 2008 +0000 +++ b/src/remote_internal.c Wed Oct 29 12:03:29 2008 +0000 @@ -75,6 +75,7 @@ #include "virterror.h" #include "libvirt.h" +#include "domain_event.h" #include "driver.h" #include "buf.h" #include "qparams.h" -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 2

[libvirt] PATCH Move misc functions out of hash.c/internal.h into libvirt.c
by Daniel P. Berrange 29 Oct '08

29 Oct '08

The hash.c file contains a nice generic implementation of hash tables, and then adds a bunch of code for creating/deleting virDomainPtr, virConnectPtr, virNetworkPtr and virStoragePoolPtr objects which is totally unrelated to hash tables. The internal.h file also contains function signatures for a bunch of APIs which are exported in the libvirt.so, but not part of the official public API in libvirt/libvirt.h. Their impl is mostly in libvirt.c, along with the aforementioned stuff from hash.c To improve internal modularization / cross-file dependancies, this patch tries to isolate the impl of all exported functions in libvirt.c, and for those API which are part of the public API, place their declaration in the src/libvirt.h file. So, the src/libvirt.h file gets the following exported, but not public funtions, with the impl of the virGetXXX/virUnrefXXX moving out of hash.c and into libvirt.c to be alongside other impls of public APIs. virConnectPtr virGetConnect(void); int virUnrefConnect(virConnectPtr conn); virDomainPtr __virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid); int virUnrefDomain(virDomainPtr domain); virNetworkPtr __virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid); int virUnrefNetwork(virNetworkPtr network); virStoragePoolPtr __virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid); int virUnrefStoragePool(virStoragePoolPtr pool); virStorageVolPtr __virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const char *key); int virUnrefStorageVol(virStorageVolPtr vol); int __virStateInitialize(void); int __virStateCleanup(void); int __virStateReload(void); int __virStateActive(void); int __virStateSigDispatcher(siginfo_t *siginfo); int __virDrvSupportsFeature (virConnectPtr conn, int feature); int __virDomainMigratePrepare (virConnectPtr dconn, char **cookie, int *cookielen, const char *uri_in, char **uri_out, unsigned long flags, const char *dname, unsigned long bandwidth); int __virDomainMigratePerform (virDomainPtr domain, const char *cookie, int cookielen, const char *uri, unsigned long flags, const char *dname, unsigned long bandwidth); virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, const char *dname, const char *cookie, int cookielen, const char *uri, unsigned long flags); Finally, the files for internal hypervisor drivers need to include this new libvirt.h file. This is step 2 in cleaning up the definitions visible in internal.h As before, there should be no functional change in this patch, merely a bunch of code moving, and #include fixups b/src/libvirt.h | 98 ++++++ qemud/qemud.c | 2 qemud/remote.c | 2 src/hash.c | 726 ------------------------------------------------- src/internal.h | 52 --- src/libvirt.c | 728 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/lxc_driver.c | 1 src/network_driver.c | 1 src/openvz_driver.c | 1 src/proxy_internal.h | 3 src/qemu_driver.c | 1 src/remote_internal.c | 1 src/storage_driver.c | 1 src/test.c | 1 src/xen_internal.c | 1 src/xend_internal.c | 1 src/xm_internal.c | 1 src/xs_internal.c | 1 18 files changed, 842 insertions(+), 780 deletions(-) Daniel diff -r ef2d00e6bc78 qemud/qemud.c --- a/qemud/qemud.c Wed Oct 29 11:36:21 2008 +0000 +++ b/qemud/qemud.c Wed Oct 29 11:48:08 2008 +0000 @@ -49,7 +49,7 @@ #include <signal.h> #include <netdb.h> -#include "internal.h" +#include "libvirt.h" #include "qemud.h" #include "util.h" diff -r ef2d00e6bc78 qemud/remote.c --- a/qemud/remote.c Wed Oct 29 11:36:21 2008 +0000 +++ b/qemud/remote.c Wed Oct 29 11:48:08 2008 +0000 @@ -48,7 +48,7 @@ #include <polkit-dbus/polkit-dbus.h> #endif -#include "internal.h" +#include "libvirt.h" #include "qemud.h" #include "memory.h" diff -r ef2d00e6bc78 src/hash.c --- a/src/hash.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/hash.c Wed Oct 29 11:48:08 2008 +0000 @@ -25,6 +25,7 @@ #include <libxml/threads.h> #include "virterror.h" +#include "libvirt.h" #include "hash.h" #include "memory.h" @@ -594,728 +595,3 @@ return (NULL); } -/************************************************************************ - * * - * Domain and Connections allocations * - * * - ************************************************************************/ - -/** - * virDomainFreeName: - * @domain: a domain object - * - * Destroy the domain object, this is just used by the domain hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virDomainFreeName(virDomainPtr domain, const char *name ATTRIBUTE_UNUSED) -{ - return (virDomainFree(domain)); -} - -/** - * virNetworkFreeName: - * @network: a network object - * - * Destroy the network object, this is just used by the network hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virNetworkFreeName(virNetworkPtr network, const char *name ATTRIBUTE_UNUSED) -{ - return (virNetworkFree(network)); -} - -/** - * virStoragePoolFreeName: - * @pool: a pool object - * - * Destroy the pool object, this is just used by the pool hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virStoragePoolFreeName(virStoragePoolPtr pool, const char *name ATTRIBUTE_UNUSED) -{ - return (virStoragePoolFree(pool)); -} - -/** - * virStorageVolFreeName: - * @vol: a vol object - * - * Destroy the vol object, this is just used by the vol hash callback. - * - * Returns 0 in case of success and -1 in case of failure. - */ -static int -virStorageVolFreeName(virStorageVolPtr vol, const char *name ATTRIBUTE_UNUSED) -{ - return (virStorageVolFree(vol)); -} - -/** - * virGetConnect: - * - * Allocates a new hypervisor connection structure - * - * Returns a new pointer or NULL in case of error. - */ -virConnectPtr -virGetConnect(void) { - virConnectPtr ret; - - if (VIR_ALLOC(ret) < 0) { - virHashError(NULL, VIR_ERR_NO_MEMORY, "%s", _("allocating connection")); - goto failed; - } - ret->magic = VIR_CONNECT_MAGIC; - ret->driver = NULL; - ret->networkDriver = NULL; - ret->privateData = NULL; - ret->networkPrivateData = NULL; - ret->domains = virHashCreate(20); - if (ret->domains == NULL) - goto failed; - ret->networks = virHashCreate(20); - if (ret->networks == NULL) - goto failed; - ret->storagePools = virHashCreate(20); - if (ret->storagePools == NULL) - goto failed; - ret->storageVols = virHashCreate(20); - if (ret->storageVols == NULL) - goto failed; - - pthread_mutex_init(&ret->lock, NULL); - - ret->refs = 1; - return(ret); - -failed: - if (ret != NULL) { - if (ret->domains != NULL) - virHashFree(ret->domains, (virHashDeallocator) virDomainFreeName); - if (ret->networks != NULL) - virHashFree(ret->networks, (virHashDeallocator) virNetworkFreeName); - if (ret->storagePools != NULL) - virHashFree(ret->storagePools, (virHashDeallocator) virStoragePoolFreeName); - if (ret->storageVols != NULL) - virHashFree(ret->storageVols, (virHashDeallocator) virStorageVolFreeName); - - pthread_mutex_destroy(&ret->lock); - VIR_FREE(ret); - } - return(NULL); -} - -/** - * virReleaseConnect: - * @conn: the hypervisor connection to release - * - * Unconditionally release all memory associated with a connection. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The connection obj must not - * be used once this method returns. - */ -static void -virReleaseConnect(virConnectPtr conn) { - DEBUG("release connection %p %s", conn, conn->name); - if (conn->domains != NULL) - virHashFree(conn->domains, (virHashDeallocator) virDomainFreeName); - if (conn->networks != NULL) - virHashFree(conn->networks, (virHashDeallocator) virNetworkFreeName); - if (conn->storagePools != NULL) - virHashFree(conn->storagePools, (virHashDeallocator) virStoragePoolFreeName); - if (conn->storageVols != NULL) - virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName); - - virResetError(&conn->err); - if (virLastErr.conn == conn) - virLastErr.conn = NULL; - - VIR_FREE(conn->name); - - pthread_mutex_unlock(&conn->lock); - pthread_mutex_destroy(&conn->lock); - VIR_FREE(conn); -} - -/** - * virUnrefConnect: - * @conn: the hypervisor connection to unreference - * - * Unreference the connection. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefConnect(virConnectPtr conn) { - int refs; - - if ((!VIR_IS_CONNECT(conn))) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&conn->lock); - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - refs = conn->refs; - if (refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return (0); - } - pthread_mutex_unlock(&conn->lock); - return (refs); -} - -/** - * virGetDomain: - * @conn: the hypervisor connection - * @name: pointer to the domain name - * @uuid: pointer to the uuid - * - * Lookup if the domain is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virUnrefDomain() is needed to not leak data. - * - * Returns a pointer to the domain, or NULL in case of failure - */ -virDomainPtr -__virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) { - virDomainPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - /* TODO search by UUID first as they are better differenciators */ - - ret = (virDomainPtr) virHashLookup(conn->domains, name); - /* TODO check the UUID */ - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating domain")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating domain")); - goto error; - } - ret->magic = VIR_DOMAIN_MAGIC; - ret->conn = conn; - ret->id = -1; - if (uuid != NULL) - memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); - - if (virHashAddEntry(conn->domains, name, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add domain to connection hash table")); - goto error; - } - conn->refs++; - DEBUG("New hash entry %p", ret); - } else { - DEBUG("Existing hash entry %p: refs now %d", ret, ret->refs+1); - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - - error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret); - } - return(NULL); -} - -/** - * virReleaseDomain: - * @domain: the domain to release - * - * Unconditionally release all memory associated with a domain. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The domain obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseDomain(virDomainPtr domain) { - virConnectPtr conn = domain->conn; - DEBUG("release domain %p %s", domain, domain->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("domain missing from connection hash table")); - - if (conn->err.dom == domain) - conn->err.dom = NULL; - if (virLastErr.dom == domain) - virLastErr.dom = NULL; - domain->magic = -1; - domain->id = -1; - VIR_FREE(domain->name); - VIR_FREE(domain); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefDomain: - * @domain: the domain to unreference - * - * Unreference the domain. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefDomain(virDomainPtr domain) { - int refs; - - if (!VIR_IS_CONNECTED_DOMAIN(domain)) { - virHashError(domain->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&domain->conn->lock); - DEBUG("unref domain %p %s %d", domain, domain->name, domain->refs); - domain->refs--; - refs = domain->refs; - if (refs == 0) { - virReleaseDomain(domain); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&domain->conn->lock); - return (refs); -} - -/** - * virGetNetwork: - * @conn: the hypervisor connection - * @name: pointer to the network name - * @uuid: pointer to the uuid - * - * Lookup if the network is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virUnrefNetwork() is needed to not leak data. - * - * Returns a pointer to the network, or NULL in case of failure - */ -virNetworkPtr -__virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) { - virNetworkPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - /* TODO search by UUID first as they are better differenciators */ - - ret = (virNetworkPtr) virHashLookup(conn->networks, name); - /* TODO check the UUID */ - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating network")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating network")); - goto error; - } - ret->magic = VIR_NETWORK_MAGIC; - ret->conn = conn; - if (uuid != NULL) - memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); - - if (virHashAddEntry(conn->networks, name, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add network to connection hash table")); - goto error; - } - conn->refs++; - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - - error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret); - } - return(NULL); -} - -/** - * virReleaseNetwork: - * @network: the network to release - * - * Unconditionally release all memory associated with a network. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The network obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseNetwork(virNetworkPtr network) { - virConnectPtr conn = network->conn; - DEBUG("release network %p %s", network, network->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("network missing from connection hash table")); - - if (conn->err.net == network) - conn->err.net = NULL; - if (virLastErr.net == network) - virLastErr.net = NULL; - - network->magic = -1; - VIR_FREE(network->name); - VIR_FREE(network); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefNetwork: - * @network: the network to unreference - * - * Unreference the network. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefNetwork(virNetworkPtr network) { - int refs; - - if (!VIR_IS_CONNECTED_NETWORK(network)) { - virHashError(network->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&network->conn->lock); - DEBUG("unref network %p %s %d", network, network->name, network->refs); - network->refs--; - refs = network->refs; - if (refs == 0) { - virReleaseNetwork(network); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&network->conn->lock); - return (refs); -} - - -/** - * virGetStoragePool: - * @conn: the hypervisor connection - * @name: pointer to the storage pool name - * @uuid: pointer to the uuid - * - * Lookup if the storage pool is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virFreeStoragePool() is needed to not leak data. - * - * Returns a pointer to the network, or NULL in case of failure - */ -virStoragePoolPtr -__virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid) { - virStoragePoolPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - /* TODO search by UUID first as they are better differenciators */ - - ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, name); - /* TODO check the UUID */ - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage pool")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage pool")); - goto error; - } - ret->magic = VIR_STORAGE_POOL_MAGIC; - ret->conn = conn; - if (uuid != NULL) - memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); - - if (virHashAddEntry(conn->storagePools, name, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add storage pool to connection hash table")); - goto error; - } - conn->refs++; - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - -error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret); - } - return(NULL); -} - - -/** - * virReleaseStoragePool: - * @pool: the pool to release - * - * Unconditionally release all memory associated with a pool. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The pool obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseStoragePool(virStoragePoolPtr pool) { - virConnectPtr conn = pool->conn; - DEBUG("release pool %p %s", pool, pool->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("pool missing from connection hash table")); - - pool->magic = -1; - VIR_FREE(pool->name); - VIR_FREE(pool); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefStoragePool: - * @pool: the pool to unreference - * - * Unreference the pool. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefStoragePool(virStoragePoolPtr pool) { - int refs; - - if (!VIR_IS_CONNECTED_STORAGE_POOL(pool)) { - virHashError(pool->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&pool->conn->lock); - DEBUG("unref pool %p %s %d", pool, pool->name, pool->refs); - pool->refs--; - refs = pool->refs; - if (refs == 0) { - virReleaseStoragePool(pool); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&pool->conn->lock); - return (refs); -} - - -/** - * virGetStorageVol: - * @conn: the hypervisor connection - * @pool: pool owning the volume - * @name: pointer to the storage vol name - * @uuid: pointer to the uuid - * - * Lookup if the storage vol is already registered for that connection, - * if yes return a new pointer to it, if no allocate a new structure, - * and register it in the table. In any case a corresponding call to - * virFreeStorageVol() is needed to not leak data. - * - * Returns a pointer to the storage vol, or NULL in case of failure - */ -virStorageVolPtr -__virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const char *key) { - virStorageVolPtr ret = NULL; - - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (key == NULL)) { - virHashError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(NULL); - } - pthread_mutex_lock(&conn->lock); - - ret = (virStorageVolPtr) virHashLookup(conn->storageVols, key); - if (ret == NULL) { - if (VIR_ALLOC(ret) < 0) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage vol")); - goto error; - } - ret->pool = strdup(pool); - if (ret->pool == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage vol")); - goto error; - } - ret->name = strdup(name); - if (ret->name == NULL) { - virHashError(conn, VIR_ERR_NO_MEMORY, "%s", _("allocating storage vol")); - goto error; - } - strncpy(ret->key, key, sizeof(ret->key)-1); - ret->key[sizeof(ret->key)-1] = '\0'; - ret->magic = VIR_STORAGE_VOL_MAGIC; - ret->conn = conn; - - if (virHashAddEntry(conn->storageVols, key, ret) < 0) { - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("failed to add storage vol to connection hash table")); - goto error; - } - conn->refs++; - } - ret->refs++; - pthread_mutex_unlock(&conn->lock); - return(ret); - -error: - pthread_mutex_unlock(&conn->lock); - if (ret != NULL) { - VIR_FREE(ret->name); - VIR_FREE(ret->pool); - VIR_FREE(ret); - } - return(NULL); -} - - -/** - * virReleaseStorageVol: - * @vol: the vol to release - * - * Unconditionally release all memory associated with a vol. - * The conn.lock mutex must be held prior to calling this, and will - * be released prior to this returning. The vol obj must not - * be used once this method returns. - * - * It will also unreference the associated connection object, - * which may also be released if its ref count hits zero. - */ -static void -virReleaseStorageVol(virStorageVolPtr vol) { - virConnectPtr conn = vol->conn; - DEBUG("release vol %p %s", vol, vol->name); - - /* TODO search by UUID first as they are better differenciators */ - if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0) - virHashError(conn, VIR_ERR_INTERNAL_ERROR, - "%s", _("vol missing from connection hash table")); - - vol->magic = -1; - VIR_FREE(vol->name); - VIR_FREE(vol->pool); - VIR_FREE(vol); - - DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); - conn->refs--; - if (conn->refs == 0) { - virReleaseConnect(conn); - /* Already unlocked mutex */ - return; - } - - pthread_mutex_unlock(&conn->lock); -} - - -/** - * virUnrefStorageVol: - * @vol: the vol to unreference - * - * Unreference the vol. If the use count drops to zero, the structure is - * actually freed. - * - * Returns the reference count or -1 in case of failure. - */ -int -virUnrefStorageVol(virStorageVolPtr vol) { - int refs; - - if (!VIR_IS_CONNECTED_STORAGE_VOL(vol)) { - virHashError(vol->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); - return(-1); - } - pthread_mutex_lock(&vol->conn->lock); - DEBUG("unref vol %p %s %d", vol, vol->name, vol->refs); - vol->refs--; - refs = vol->refs; - if (refs == 0) { - virReleaseStorageVol(vol); - /* Already unlocked mutex */ - return (0); - } - - pthread_mutex_unlock(&vol->conn->lock); - return (refs); -} diff -r ef2d00e6bc78 src/internal.h --- a/src/internal.h Wed Oct 29 11:36:21 2008 +0000 +++ b/src/internal.h Wed Oct 29 11:48:08 2008 +0000 @@ -295,58 +295,6 @@ }; - -/************************************************************************ - * * - * API for domain/connections (de)allocations and lookups * - * * - ************************************************************************/ - -virConnectPtr virGetConnect (void); -int virUnrefConnect (virConnectPtr conn); -virDomainPtr __virGetDomain (virConnectPtr conn, - const char *name, - const unsigned char *uuid); -int virUnrefDomain (virDomainPtr domain); -virNetworkPtr __virGetNetwork (virConnectPtr conn, - const char *name, - const unsigned char *uuid); -int virUnrefNetwork (virNetworkPtr network); - -virStoragePoolPtr __virGetStoragePool (virConnectPtr conn, - const char *name, - const unsigned char *uuid); -int virUnrefStoragePool (virStoragePoolPtr pool); -virStorageVolPtr __virGetStorageVol (virConnectPtr conn, - const char *pool, - const char *name, - const char *key); -int virUnrefStorageVol (virStorageVolPtr vol); - -#define virGetDomain(c,n,u) __virGetDomain((c),(n),(u)) -#define virGetNetwork(c,n,u) __virGetNetwork((c),(n),(u)) -#define virGetStoragePool(c,n,u) __virGetStoragePool((c),(n),(u)) -#define virGetStorageVol(c,p,n,u) __virGetStorageVol((c),(p),(n),(u)) - -#ifdef WITH_LIBVIRTD -int __virStateInitialize(void); -int __virStateCleanup(void); -int __virStateReload(void); -int __virStateActive(void); -int __virStateSigDispatcher(siginfo_t *siginfo); -#define virStateInitialize() __virStateInitialize() -#define virStateCleanup() __virStateCleanup() -#define virStateReload() __virStateReload() -#define virStateActive() __virStateActive() -#define virStateSigDispatcher(s) __virStateSigDispatcher(s) -#endif - -int __virDrvSupportsFeature (virConnectPtr conn, int feature); - -int __virDomainMigratePrepare (virConnectPtr dconn, char **cookie, int *cookielen, const char *uri_in, char **uri_out, unsigned long flags, const char *dname, unsigned long bandwidth); -int __virDomainMigratePerform (virDomainPtr domain, const char *cookie, int cookielen, const char *uri, unsigned long flags, const char *dname, unsigned long bandwidth); -virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, const char *dname, const char *cookie, int cookielen, const char *uri, unsigned long flags); - /** * Domain Event Notification */ diff -r ef2d00e6bc78 src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 11:48:08 2008 +0000 @@ -32,6 +32,7 @@ #endif #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "uuid.h" @@ -5570,3 +5571,730 @@ return 0; } + + +/************************************************************************ + * * + * Domain and Connections allocations * + * * + ************************************************************************/ + +/** + * virDomainFreeName: + * @domain: a domain object + * + * Destroy the domain object, this is just used by the domain hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virDomainFreeName(virDomainPtr domain, const char *name ATTRIBUTE_UNUSED) +{ + return (virDomainFree(domain)); +} + +/** + * virNetworkFreeName: + * @network: a network object + * + * Destroy the network object, this is just used by the network hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virNetworkFreeName(virNetworkPtr network, const char *name ATTRIBUTE_UNUSED) +{ + return (virNetworkFree(network)); +} + +/** + * virStoragePoolFreeName: + * @pool: a pool object + * + * Destroy the pool object, this is just used by the pool hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virStoragePoolFreeName(virStoragePoolPtr pool, const char *name ATTRIBUTE_UNUSED) +{ + return (virStoragePoolFree(pool)); +} + +/** + * virStorageVolFreeName: + * @vol: a vol object + * + * Destroy the vol object, this is just used by the vol hash callback. + * + * Returns 0 in case of success and -1 in case of failure. + */ +static int +virStorageVolFreeName(virStorageVolPtr vol, const char *name ATTRIBUTE_UNUSED) +{ + return (virStorageVolFree(vol)); +} + +/** + * virGetConnect: + * + * Allocates a new hypervisor connection structure + * + * Returns a new pointer or NULL in case of error. + */ +virConnectPtr +virGetConnect(void) { + virConnectPtr ret; + + if (VIR_ALLOC(ret) < 0) { + virLibConnError(NULL, VIR_ERR_NO_MEMORY, _("allocating connection")); + goto failed; + } + ret->magic = VIR_CONNECT_MAGIC; + ret->driver = NULL; + ret->networkDriver = NULL; + ret->privateData = NULL; + ret->networkPrivateData = NULL; + ret->domains = virHashCreate(20); + if (ret->domains == NULL) + goto failed; + ret->networks = virHashCreate(20); + if (ret->networks == NULL) + goto failed; + ret->storagePools = virHashCreate(20); + if (ret->storagePools == NULL) + goto failed; + ret->storageVols = virHashCreate(20); + if (ret->storageVols == NULL) + goto failed; + + pthread_mutex_init(&ret->lock, NULL); + + ret->refs = 1; + return(ret); + +failed: + if (ret != NULL) { + if (ret->domains != NULL) + virHashFree(ret->domains, (virHashDeallocator) virDomainFreeName); + if (ret->networks != NULL) + virHashFree(ret->networks, (virHashDeallocator) virNetworkFreeName); + if (ret->storagePools != NULL) + virHashFree(ret->storagePools, (virHashDeallocator) virStoragePoolFreeName); + if (ret->storageVols != NULL) + virHashFree(ret->storageVols, (virHashDeallocator) virStorageVolFreeName); + + pthread_mutex_destroy(&ret->lock); + VIR_FREE(ret); + } + return(NULL); +} + +/** + * virReleaseConnect: + * @conn: the hypervisor connection to release + * + * Unconditionally release all memory associated with a connection. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The connection obj must not + * be used once this method returns. + */ +static void +virReleaseConnect(virConnectPtr conn) { + DEBUG("release connection %p %s", conn, conn->name); + if (conn->domains != NULL) + virHashFree(conn->domains, (virHashDeallocator) virDomainFreeName); + if (conn->networks != NULL) + virHashFree(conn->networks, (virHashDeallocator) virNetworkFreeName); + if (conn->storagePools != NULL) + virHashFree(conn->storagePools, (virHashDeallocator) virStoragePoolFreeName); + if (conn->storageVols != NULL) + virHashFree(conn->storageVols, (virHashDeallocator) virStorageVolFreeName); + + virResetError(&conn->err); + if (virLastErr.conn == conn) + virLastErr.conn = NULL; + + VIR_FREE(conn->name); + + pthread_mutex_unlock(&conn->lock); + pthread_mutex_destroy(&conn->lock); + VIR_FREE(conn); +} + +/** + * virUnrefConnect: + * @conn: the hypervisor connection to unreference + * + * Unreference the connection. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefConnect(virConnectPtr conn) { + int refs; + + if ((!VIR_IS_CONNECT(conn))) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&conn->lock); + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + refs = conn->refs; + if (refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return (0); + } + pthread_mutex_unlock(&conn->lock); + return (refs); +} + +/** + * virGetDomain: + * @conn: the hypervisor connection + * @name: pointer to the domain name + * @uuid: pointer to the uuid + * + * Lookup if the domain is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virUnrefDomain() is needed to not leak data. + * + * Returns a pointer to the domain, or NULL in case of failure + */ +virDomainPtr +__virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) { + virDomainPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + /* TODO search by UUID first as they are better differenciators */ + + ret = (virDomainPtr) virHashLookup(conn->domains, name); + /* TODO check the UUID */ + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating domain")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating domain")); + goto error; + } + ret->magic = VIR_DOMAIN_MAGIC; + ret->conn = conn; + ret->id = -1; + if (uuid != NULL) + memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); + + if (virHashAddEntry(conn->domains, name, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add domain to connection hash table")); + goto error; + } + conn->refs++; + DEBUG("New hash entry %p", ret); + } else { + DEBUG("Existing hash entry %p: refs now %d", ret, ret->refs+1); + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + + error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret); + } + return(NULL); +} + +/** + * virReleaseDomain: + * @domain: the domain to release + * + * Unconditionally release all memory associated with a domain. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The domain obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseDomain(virDomainPtr domain) { + virConnectPtr conn = domain->conn; + DEBUG("release domain %p %s", domain, domain->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("domain missing from connection hash table")); + + if (conn->err.dom == domain) + conn->err.dom = NULL; + if (virLastErr.dom == domain) + virLastErr.dom = NULL; + domain->magic = -1; + domain->id = -1; + VIR_FREE(domain->name); + VIR_FREE(domain); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefDomain: + * @domain: the domain to unreference + * + * Unreference the domain. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefDomain(virDomainPtr domain) { + int refs; + + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { + virLibConnError(domain->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&domain->conn->lock); + DEBUG("unref domain %p %s %d", domain, domain->name, domain->refs); + domain->refs--; + refs = domain->refs; + if (refs == 0) { + virReleaseDomain(domain); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&domain->conn->lock); + return (refs); +} + +/** + * virGetNetwork: + * @conn: the hypervisor connection + * @name: pointer to the network name + * @uuid: pointer to the uuid + * + * Lookup if the network is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virUnrefNetwork() is needed to not leak data. + * + * Returns a pointer to the network, or NULL in case of failure + */ +virNetworkPtr +__virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) { + virNetworkPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + /* TODO search by UUID first as they are better differenciators */ + + ret = (virNetworkPtr) virHashLookup(conn->networks, name); + /* TODO check the UUID */ + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating network")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating network")); + goto error; + } + ret->magic = VIR_NETWORK_MAGIC; + ret->conn = conn; + if (uuid != NULL) + memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); + + if (virHashAddEntry(conn->networks, name, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add network to connection hash table")); + goto error; + } + conn->refs++; + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + + error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret); + } + return(NULL); +} + +/** + * virReleaseNetwork: + * @network: the network to release + * + * Unconditionally release all memory associated with a network. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The network obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseNetwork(virNetworkPtr network) { + virConnectPtr conn = network->conn; + DEBUG("release network %p %s", network, network->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("network missing from connection hash table")); + + if (conn->err.net == network) + conn->err.net = NULL; + if (virLastErr.net == network) + virLastErr.net = NULL; + + network->magic = -1; + VIR_FREE(network->name); + VIR_FREE(network); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefNetwork: + * @network: the network to unreference + * + * Unreference the network. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefNetwork(virNetworkPtr network) { + int refs; + + if (!VIR_IS_CONNECTED_NETWORK(network)) { + virLibConnError(network->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&network->conn->lock); + DEBUG("unref network %p %s %d", network, network->name, network->refs); + network->refs--; + refs = network->refs; + if (refs == 0) { + virReleaseNetwork(network); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&network->conn->lock); + return (refs); +} + + +/** + * virGetStoragePool: + * @conn: the hypervisor connection + * @name: pointer to the storage pool name + * @uuid: pointer to the uuid + * + * Lookup if the storage pool is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virFreeStoragePool() is needed to not leak data. + * + * Returns a pointer to the network, or NULL in case of failure + */ +virStoragePoolPtr +__virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid) { + virStoragePoolPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + /* TODO search by UUID first as they are better differenciators */ + + ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, name); + /* TODO check the UUID */ + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage pool")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage pool")); + goto error; + } + ret->magic = VIR_STORAGE_POOL_MAGIC; + ret->conn = conn; + if (uuid != NULL) + memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN); + + if (virHashAddEntry(conn->storagePools, name, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add storage pool to connection hash table")); + goto error; + } + conn->refs++; + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + +error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret); + } + return(NULL); +} + + +/** + * virReleaseStoragePool: + * @pool: the pool to release + * + * Unconditionally release all memory associated with a pool. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The pool obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseStoragePool(virStoragePoolPtr pool) { + virConnectPtr conn = pool->conn; + DEBUG("release pool %p %s", pool, pool->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("pool missing from connection hash table")); + + pool->magic = -1; + VIR_FREE(pool->name); + VIR_FREE(pool); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefStoragePool: + * @pool: the pool to unreference + * + * Unreference the pool. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefStoragePool(virStoragePoolPtr pool) { + int refs; + + if (!VIR_IS_CONNECTED_STORAGE_POOL(pool)) { + virLibConnError(pool->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&pool->conn->lock); + DEBUG("unref pool %p %s %d", pool, pool->name, pool->refs); + pool->refs--; + refs = pool->refs; + if (refs == 0) { + virReleaseStoragePool(pool); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&pool->conn->lock); + return (refs); +} + + +/** + * virGetStorageVol: + * @conn: the hypervisor connection + * @pool: pool owning the volume + * @name: pointer to the storage vol name + * @uuid: pointer to the uuid + * + * Lookup if the storage vol is already registered for that connection, + * if yes return a new pointer to it, if no allocate a new structure, + * and register it in the table. In any case a corresponding call to + * virFreeStorageVol() is needed to not leak data. + * + * Returns a pointer to the storage vol, or NULL in case of failure + */ +virStorageVolPtr +__virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const char *key) { + virStorageVolPtr ret = NULL; + + if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (key == NULL)) { + virLibConnError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(NULL); + } + pthread_mutex_lock(&conn->lock); + + ret = (virStorageVolPtr) virHashLookup(conn->storageVols, key); + if (ret == NULL) { + if (VIR_ALLOC(ret) < 0) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage vol")); + goto error; + } + ret->pool = strdup(pool); + if (ret->pool == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage vol")); + goto error; + } + ret->name = strdup(name); + if (ret->name == NULL) { + virLibConnError(conn, VIR_ERR_NO_MEMORY, _("allocating storage vol")); + goto error; + } + strncpy(ret->key, key, sizeof(ret->key)-1); + ret->key[sizeof(ret->key)-1] = '\0'; + ret->magic = VIR_STORAGE_VOL_MAGIC; + ret->conn = conn; + + if (virHashAddEntry(conn->storageVols, key, ret) < 0) { + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("failed to add storage vol to connection hash table")); + goto error; + } + conn->refs++; + } + ret->refs++; + pthread_mutex_unlock(&conn->lock); + return(ret); + +error: + pthread_mutex_unlock(&conn->lock); + if (ret != NULL) { + VIR_FREE(ret->name); + VIR_FREE(ret->pool); + VIR_FREE(ret); + } + return(NULL); +} + + +/** + * virReleaseStorageVol: + * @vol: the vol to release + * + * Unconditionally release all memory associated with a vol. + * The conn.lock mutex must be held prior to calling this, and will + * be released prior to this returning. The vol obj must not + * be used once this method returns. + * + * It will also unreference the associated connection object, + * which may also be released if its ref count hits zero. + */ +static void +virReleaseStorageVol(virStorageVolPtr vol) { + virConnectPtr conn = vol->conn; + DEBUG("release vol %p %s", vol, vol->name); + + /* TODO search by UUID first as they are better differenciators */ + if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0) + virLibConnError(conn, VIR_ERR_INTERNAL_ERROR, + _("vol missing from connection hash table")); + + vol->magic = -1; + VIR_FREE(vol->name); + VIR_FREE(vol->pool); + VIR_FREE(vol); + + DEBUG("unref connection %p %s %d", conn, conn->name, conn->refs); + conn->refs--; + if (conn->refs == 0) { + virReleaseConnect(conn); + /* Already unlocked mutex */ + return; + } + + pthread_mutex_unlock(&conn->lock); +} + + +/** + * virUnrefStorageVol: + * @vol: the vol to unreference + * + * Unreference the vol. If the use count drops to zero, the structure is + * actually freed. + * + * Returns the reference count or -1 in case of failure. + */ +int +virUnrefStorageVol(virStorageVolPtr vol) { + int refs; + + if (!VIR_IS_CONNECTED_STORAGE_VOL(vol)) { + virLibConnError(vol->conn, VIR_ERR_INVALID_ARG, __FUNCTION__); + return(-1); + } + pthread_mutex_lock(&vol->conn->lock); + DEBUG("unref vol %p %s %d", vol, vol->name, vol->refs); + vol->refs--; + refs = vol->refs; + if (refs == 0) { + virReleaseStorageVol(vol); + /* Already unlocked mutex */ + return (0); + } + + pthread_mutex_unlock(&vol->conn->lock); + return (refs); +} diff -r ef2d00e6bc78 src/libvirt.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/libvirt.h Wed Oct 29 11:48:08 2008 +0000 @@ -0,0 +1,98 @@ +/* + * libvirt.h: publically exported APIs, not for public use + * + * Copyright (C) 2006-2008 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef __LIBVIRT_H_ +#define __LIBVIRT_H_ + +#include "internal.h" + + +/************************************************************************ + * * + * API for domain/connections (de)allocations and lookups * + * * + ************************************************************************/ + +virConnectPtr virGetConnect(void); +int virUnrefConnect(virConnectPtr conn); +virDomainPtr __virGetDomain(virConnectPtr conn, + const char *name, + const unsigned char *uuid); +int virUnrefDomain(virDomainPtr domain); +virNetworkPtr __virGetNetwork(virConnectPtr conn, + const char *name, + const unsigned char *uuid); +int virUnrefNetwork(virNetworkPtr network); + +virStoragePoolPtr __virGetStoragePool(virConnectPtr conn, + const char *name, + const unsigned char *uuid); +int virUnrefStoragePool(virStoragePoolPtr pool); +virStorageVolPtr __virGetStorageVol(virConnectPtr conn, + const char *pool, + const char *name, + const char *key); +int virUnrefStorageVol(virStorageVolPtr vol); + +#define virGetDomain(c,n,u) __virGetDomain((c),(n),(u)) +#define virGetNetwork(c,n,u) __virGetNetwork((c),(n),(u)) +#define virGetStoragePool(c,n,u) __virGetStoragePool((c),(n),(u)) +#define virGetStorageVol(c,p,n,u) __virGetStorageVol((c),(p),(n),(u)) + +#ifdef WITH_LIBVIRTD +int __virStateInitialize(void); +int __virStateCleanup(void); +int __virStateReload(void); +int __virStateActive(void); +int __virStateSigDispatcher(siginfo_t *siginfo); +#define virStateInitialize() __virStateInitialize() +#define virStateCleanup() __virStateCleanup() +#define virStateReload() __virStateReload() +#define virStateActive() __virStateActive() +#define virStateSigDispatcher(s) __virStateSigDispatcher(s) +#endif + +int __virDrvSupportsFeature (virConnectPtr conn, int feature); + +int __virDomainMigratePrepare (virConnectPtr dconn, + char **cookie, + int *cookielen, + const char *uri_in, + char **uri_out, + unsigned long flags, + const char *dname, + unsigned long bandwidth); +int __virDomainMigratePerform (virDomainPtr domain, + const char *cookie, + int cookielen, + const char *uri, + unsigned long flags, + const char *dname, + unsigned long bandwidth); +virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, + const char *dname, + const char *cookie, + int cookielen, + const char *uri, + unsigned long flags); + + +#endif diff -r ef2d00e6bc78 src/lxc_driver.c --- a/src/lxc_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/lxc_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -36,6 +36,7 @@ #include <wait.h> #include "virterror.h" +#include "libvirt.h" #include "lxc_conf.h" #include "lxc_container.h" #include "lxc_driver.h" diff -r ef2d00e6bc78 src/network_driver.c --- a/src/network_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/network_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -45,6 +45,7 @@ #include <sys/ioctl.h> #include "virterror.h" +#include "libvirt.h" #include "network_driver.h" #include "network_conf.h" #include "driver.h" diff -r ef2d00e6bc78 src/openvz_driver.c --- a/src/openvz_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/openvz_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -48,6 +48,7 @@ #include <sys/wait.h> #include "virterror.h" +#include "libvirt.h" #include "openvz_driver.h" #include "event.h" #include "buf.h" diff -r ef2d00e6bc78 src/proxy_internal.h --- a/src/proxy_internal.h Wed Oct 29 11:36:21 2008 +0000 +++ b/src/proxy_internal.h Wed Oct 29 11:48:08 2008 +0000 @@ -12,7 +12,8 @@ #ifndef __LIBVIR_PROXY_H__ #define __LIBVIR_PROXY_H__ -#include "libvirt/libvirt.h" +#include "internal.h" +#include "libvirt.h" #define PROXY_SOCKET_PATH "/tmp/livirt_proxy_conn" #define PROXY_PROTO_VERSION 1 diff -r ef2d00e6bc78 src/qemu_driver.c --- a/src/qemu_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/qemu_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -53,6 +53,7 @@ #endif #include "virterror.h" +#include "libvirt.h" #include "qemu_driver.h" #include "qemu_conf.h" #include "c-ctype.h" diff -r ef2d00e6bc78 src/remote_internal.c --- a/src/remote_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/remote_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -74,6 +74,7 @@ #endif #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "buf.h" #include "qparams.h" diff -r ef2d00e6bc78 src/storage_driver.c --- a/src/storage_driver.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/storage_driver.c Wed Oct 29 11:48:08 2008 +0000 @@ -33,6 +33,7 @@ #include <string.h> #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "util.h" #include "storage_driver.h" diff -r ef2d00e6bc78 src/test.c --- a/src/test.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/test.c Wed Oct 29 11:48:08 2008 +0000 @@ -32,6 +32,7 @@ #include "virterror.h" +#include "libvirt.h" #include "test.h" #include "buf.h" #include "util.h" diff -r ef2d00e6bc78 src/xen_internal.c --- a/src/xen_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xen_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -41,6 +41,7 @@ #include <xen/sched.h> #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "util.h" #include "xen_unified.h" diff -r ef2d00e6bc78 src/xend_internal.c --- a/src/xend_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xend_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -33,6 +33,7 @@ #include <errno.h> #include "virterror.h" +#include "libvirt.h" #include "xend_internal.h" #include "driver.h" #include "util.h" diff -r ef2d00e6bc78 src/xm_internal.c --- a/src/xm_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xm_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -36,6 +36,7 @@ #include <xen/dom0_ops.h> #include "virterror.h" +#include "libvirt.h" #include "xm_internal.h" #include "xen_unified.h" #include "xend_internal.h" diff -r ef2d00e6bc78 src/xs_internal.c --- a/src/xs_internal.c Wed Oct 29 11:36:21 2008 +0000 +++ b/src/xs_internal.c Wed Oct 29 11:48:08 2008 +0000 @@ -27,6 +27,7 @@ #include <xs.h> #include "virterror.h" +#include "libvirt.h" #include "driver.h" #include "xen_unified.h" #include "xs_internal.h" -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 3

[libvirt] PATCH: Remove virStringList & improve virStoragePoolSourceList
by Daniel P. Berrange 29 Oct '08

29 Oct '08

Chris' recent patch removed use of the virStringList for the LVM discovery, but it was still used in the NFS discovery code. I figured we might as well make NFS discovery use virStoragePoolSourceList() too. This require a few changes: - Include pool type in virStoragePoolSourceList so XML formatter knows what type of source information is available - Factor out code to format a single virStoragePoolSourcePtr object into a virStoragePoolSourceFormat method - Make virStoragePoolDefFormat & virStoragePoolListFormat both call this common method - Make LVM discovery code set the pool type in source list - Switch NFS discovery to use virStoragePoolSourceList This also has benfit of giving proper indentation in the XML # ./virsh find-storage-pool-sources-as logical <sources> <source> <device path='/dev/sda2'/> <name>HostVG</name> <format type='lvm2'/> </source> </sources> # ./virsh find-storage-pool-sources-as --host aubergine.redhat.com netfs <sources> <source> <host name='aubergine.redhat.com'/> <dir path='/mnt/export'/> <format type='nfs'/> </source> <source> <host name='aubergine.redhat.com'/> <dir path='/home'/> <format type='nfs'/> </source> </sources> internal.h | 12 --- libvirt.c | 40 ------------ storage_backend_fs.c | 46 +++++++------- storage_backend_logical.c | 3 storage_conf.c | 150 +++++++++++++++++++++++++++------------------- storage_conf.h | 1 6 files changed, 120 insertions(+), 132 deletions(-) Daniel diff -r 32908ef883dc src/internal.h --- a/src/internal.h Wed Oct 29 11:26:37 2008 +0000 +++ b/src/internal.h Wed Oct 29 11:29:16 2008 +0000 @@ -371,18 +371,6 @@ int __virDomainMigratePerform (virDomainPtr domain, const char *cookie, int cookielen, const char *uri, unsigned long flags, const char *dname, unsigned long bandwidth); virDomainPtr __virDomainMigrateFinish (virConnectPtr dconn, const char *dname, const char *cookie, int cookielen, const char *uri, unsigned long flags); -typedef struct _virStringList virStringList; - -struct _virStringList { - char *val; - int len; - struct _virStringList *next; -}; - -char *__virStringListJoin(const virStringList *list, const char *pre, - const char *post, const char *sep); -void __virStringListFree(virStringList *list); - /** * Domain Event Notification */ diff -r 32908ef883dc src/libvirt.c --- a/src/libvirt.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/libvirt.c Wed Oct 29 11:29:16 2008 +0000 @@ -5305,46 +5305,6 @@ - -/* Not for public use. Combines the elements of a virStringList - * into a single string. - */ -char *__virStringListJoin(const virStringList *list, const char *pre, - const char *post, const char *sep) -{ - size_t pre_len = strlen(pre); - size_t sep_len = strlen(sep); - size_t len = pre_len + strlen(post); - const virStringList *p; - char *retval; - - for (p = list; p; p = p->next) - len += p->len + sep_len; - if (VIR_ALLOC_N(retval, len+1) < 0) - return NULL; - strcpy(retval, pre); - len = pre_len; - for (p = list; p; p = p->next) { - strcpy(retval + len, p->val); - len += p->len; - strcpy(retval + len, sep); - len += sep_len; - } - strcpy(retval + len, post); - - return retval; -} - - -void __virStringListFree(virStringList *list) -{ - while (list) { - virStringList *p = list->next; - VIR_FREE(list); - list = p; - } -} - /* * Domain Event Notification */ diff -r 32908ef883dc src/storage_backend_fs.c --- a/src/storage_backend_fs.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_backend_fs.c Wed Oct 29 11:29:16 2008 +0000 @@ -295,7 +295,7 @@ #if WITH_STORAGE_FS struct _virNetfsDiscoverState { const char *host; - virStringList *list; + virStoragePoolSourceList list; }; typedef struct _virNetfsDiscoverState virNetfsDiscoverState; @@ -307,8 +307,8 @@ void *data) { virNetfsDiscoverState *state = data; - virStringList *newItem; const char *name, *path; + virStoragePoolSource *src; path = groups[0]; @@ -325,24 +325,17 @@ return -1; } - /* Append new XML desc to list */ - - if (VIR_ALLOC(newItem) != 0) { - virStorageReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("new xml desc")); + if (VIR_REALLOC_N(state->list.sources, state->list.nsources+1) < 0) { + virStorageReportError(conn, VIR_ERR_NO_MEMORY, NULL); return -1; } + memset(state->list.sources + state->list.nsources, 0, sizeof(*state->list.sources)); - if (asprintf(&newItem->val, - "<source><host name='%s'/><dir path='%s'/></source>", - state->host, path) <= 0) { - virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("asprintf failed")); - VIR_FREE(newItem); + src = state->list.sources + state->list.nsources++; + if (!(src->host.name = strdup(state->host)) || + !(src->dir = strdup(path))) return -1; - } - - newItem->len = strlen(newItem->val); - newItem->next = state->list; - state->list = newItem; + src->format = VIR_STORAGE_POOL_NETFS_NFS; return 0; } @@ -368,10 +361,18 @@ }; xmlDocPtr doc = NULL; xmlXPathContextPtr xpath_ctxt = NULL; - virNetfsDiscoverState state = { .host = NULL, .list = NULL }; + virNetfsDiscoverState state = { + .host = NULL, + .list = { + .type = VIR_STORAGE_POOL_NETFS, + .nsources = 0, + .sources = NULL + } + }; const char *prog[] = { SHOWMOUNT, "--no-headers", "--exports", NULL, NULL }; int exitstatus; char *retval = NULL; + unsigned int i; doc = xmlReadDoc((const xmlChar *)srcSpec, "srcSpec.xml", NULL, XML_PARSE_NOENT | XML_PARSE_NONET | @@ -400,18 +401,21 @@ &state, &exitstatus) < 0) goto cleanup; - retval = __virStringListJoin(state.list, SOURCES_START_TAG, - SOURCES_END_TAG, "\n"); + retval = virStoragePoolSourceListFormat(conn, &state.list); if (retval == NULL) { virStorageReportError(conn, VIR_ERR_NO_MEMORY, "%s", _("retval")); goto cleanup; } cleanup: + for (i = 0; i < state.list.nsources; i++) + virStoragePoolSourceFree(&state.list.sources[i]); + + VIR_FREE(state.list.sources); + VIR_FREE(state.host); + xmlFreeDoc(doc); xmlXPathFreeContext(xpath_ctxt); - VIR_FREE(state.host); - __virStringListFree(state.list); return retval; } diff -r 32908ef883dc src/storage_backend_logical.c --- a/src/storage_backend_logical.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_backend_logical.c Wed Oct 29 11:29:16 2008 +0000 @@ -295,6 +295,7 @@ dev = &thisSource->devices[thisSource->ndevice]; thisSource->ndevice++; + thisSource->format = VIR_STORAGE_POOL_LOGICAL_LVM2; memset(dev, 0, sizeof(*dev)); dev->path = pvname; @@ -331,6 +332,8 @@ int i; memset(&sourceList, 0, sizeof(sourceList)); + sourceList.type = VIR_STORAGE_POOL_LOGICAL; + if (virStorageBackendRunProgRegex(conn, NULL, prog, 1, regexes, vars, virStorageBackendLogicalFindPoolSourcesFunc, &sourceList, &exitstatus) < 0) diff -r 32908ef883dc src/storage_conf.c --- a/src/storage_conf.c Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_conf.c Wed Oct 29 11:29:16 2008 +0000 @@ -472,6 +472,68 @@ return NULL; } +static int +virStoragePoolSourceFormat(virConnectPtr conn, + virBufferPtr buf, + virStorageBackendPoolOptionsPtr options, + virStoragePoolSourcePtr src) +{ + int i, j; + + virBufferAddLit(buf," <source>\n"); + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_HOST) && + src->host.name) + virBufferVSprintf(buf," <host name='%s'/>\n", src->host.name); + + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DEVICE) && + src->ndevice) { + for (i = 0 ; i < src->ndevice ; i++) { + if (src->devices[i].nfreeExtent) { + virBufferVSprintf(buf," <device path='%s'>\n", + src->devices[i].path); + for (j = 0 ; j < src->devices[i].nfreeExtent ; j++) { + virBufferVSprintf(buf, " <freeExtent start='%llu' end='%llu'/>\n", + src->devices[i].freeExtents[j].start, + src->devices[i].freeExtents[j].end); + } + virBufferAddLit(buf," </device>\n"); + } + else + virBufferVSprintf(buf, " <device path='%s'/>\n", + src->devices[i].path); + } + } + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DIR) && + src->dir) + virBufferVSprintf(buf," <dir path='%s'/>\n", src->dir); + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_ADAPTER) && + src->adapter) + virBufferVSprintf(buf," <adapter name='%s'/>\n", src->adapter); + if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_NAME) && + src->name) + virBufferVSprintf(buf," <name>%s</name>\n", src->name); + + if (options->formatToString) { + const char *format = (options->formatToString)(src->format); + if (!format) { + virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, + _("unknown pool format number %d"), + src->format); + return -1; + } + virBufferVSprintf(buf," <format type='%s'/>\n", format); + } + + + if (src->authType == VIR_STORAGE_POOL_AUTH_CHAP) + virBufferVSprintf(buf," <auth type='chap' login='%s' passwd='%s'>\n", + src->auth.chap.login, + src->auth.chap.passwd); + virBufferAddLit(buf," </source>\n"); + + return 0; +} + char * virStoragePoolDefFormat(virConnectPtr conn, @@ -480,7 +542,6 @@ virBuffer buf = VIR_BUFFER_INITIALIZER; const char *type; char uuid[VIR_UUID_STRING_BUFLEN]; - int i, j; options = virStorageBackendPoolOptionsForType(def->type); if (options == NULL) @@ -505,56 +566,8 @@ virBufferVSprintf(&buf," <available>%llu</available>\n", def->available); - virBufferAddLit(&buf," <source>\n"); - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_HOST) && - def->source.host.name) - virBufferVSprintf(&buf," <host name='%s'/>\n", def->source.host.name); - - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DEVICE) && - def->source.ndevice) { - for (i = 0 ; i < def->source.ndevice ; i++) { - if (def->source.devices[i].nfreeExtent) { - virBufferVSprintf(&buf," <device path='%s'>\n", - def->source.devices[i].path); - for (j = 0 ; j < def->source.devices[i].nfreeExtent ; j++) { - virBufferVSprintf(&buf, " <freeExtent start='%llu' end='%llu'/>\n", - def->source.devices[i].freeExtents[j].start, - def->source.devices[i].freeExtents[j].end); - } - virBufferAddLit(&buf," </device>\n"); - } - else - virBufferVSprintf(&buf, " <device path='%s'/>\n", - def->source.devices[i].path); - } - } - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_DIR) && - def->source.dir) - virBufferVSprintf(&buf," <dir path='%s'/>\n", def->source.dir); - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_ADAPTER) && - def->source.adapter) - virBufferVSprintf(&buf," <adapter name='%s'/>\n", def->source.adapter); - if ((options->flags & VIR_STORAGE_BACKEND_POOL_SOURCE_NAME) && - def->source.name) - virBufferVSprintf(&buf," <name>%s</name>\n", def->source.name); - - if (options->formatToString) { - const char *format = (options->formatToString)(def->source.format); - if (!format) { - virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, - _("unknown pool format number %d"), - def->source.format); - goto cleanup; - } - virBufferVSprintf(&buf," <format type='%s'/>\n", format); - } - - - if (def->source.authType == VIR_STORAGE_POOL_AUTH_CHAP) - virBufferVSprintf(&buf," <auth type='chap' login='%s' passwd='%s'>\n", - def->source.auth.chap.login, - def->source.auth.chap.passwd); - virBufferAddLit(&buf," </source>\n"); + if (virStoragePoolSourceFormat(conn, &buf, options, &def->source) < 0) + goto cleanup; virBufferAddLit(&buf," <target>\n"); @@ -1271,22 +1284,41 @@ return 0; } -char *virStoragePoolSourceListFormat(virConnectPtr conn ATTRIBUTE_UNUSED, +char *virStoragePoolSourceListFormat(virConnectPtr conn, virStoragePoolSourceListPtr def) { - int i, j; + virStorageBackendPoolOptionsPtr options; virBuffer buf = VIR_BUFFER_INITIALIZER; + const char *type; + int i; - virBufferAddLit(&buf, "<sources>"); + options = virStorageBackendPoolOptionsForType(def->type); + if (options == NULL) + return NULL; + + type = virStorageBackendToString(def->type); + if (!type) { + virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("unexpected pool type")); + goto cleanup; + } + + virBufferAddLit(&buf, "<sources>\n"); for (i = 0; i < def->nsources; i++) { - virBufferVSprintf(&buf, "<source><name>%s</name>", def->sources[i].name); - for (j = 0; j < def->sources[i].ndevice; j++) - virBufferVSprintf(&buf, "<device path='%s'/>", def->sources[i].devices[j].path); - virBufferAddLit(&buf, "</source>"); + virStoragePoolSourceFormat(conn, &buf, options, &def->sources[i]); } - virBufferAddLit(&buf, "</sources>"); + virBufferAddLit(&buf, "</sources>\n"); + + if (virBufferError(&buf)) + goto no_memory; return virBufferContentAndReset(&buf); + + no_memory: + virStorageReportError(conn, VIR_ERR_NO_MEMORY, NULL); + cleanup: + free(virBufferContentAndReset(&buf)); + return NULL; } diff -r 32908ef883dc src/storage_conf.h --- a/src/storage_conf.h Wed Oct 29 11:26:37 2008 +0000 +++ b/src/storage_conf.h Wed Oct 29 11:29:16 2008 +0000 @@ -252,6 +252,7 @@ typedef struct _virStoragePoolSourceList virStoragePoolSourceList; typedef virStoragePoolSourceList *virStoragePoolSourceListPtr; struct _virStoragePoolSourceList { + int type; unsigned int nsources; virStoragePoolSourcePtr sources; }; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

2 1

[libvirt] libvirt adds ", boot-on" to qemu-kvm command line - prevents guest boot!
by Bruce Rogers 28 Oct '08

28 Oct '08

I'm experimenting with libvirt and qemu-kvm using a raw hard disk image that has a bootable DOS partition in it. I noticed that libvirt was adding the ",boot=on" option to the disk section of the qemu-kvm command line. This prevents the guest from booting somehow. If that option is removed, then the guest can boot just fine. What is that option used for and is there any way to cause libvirt to not add it in my scenario? - Bruce Rogers

1 0

[libvirt] [0/17] patches: mingw, gnulib, warnings, misc
by Jim Meyering 28 Oct '08

28 Oct '08

Last week, I set out simply to adjust libvirt to accommodate a recent gnulib API change, whereby you now include the standard <netdb.h> rather than the gnulib-made-up "getaddrinfo.h" header file. That meant pulling in many gnulib updates (a lot's been happening on the mingw portability front recently), and there's been some churn, so I'd pull in an update, find that it exposes more portability problems, fix them, (but that may have also added a new warning, so fix that), pull in another update, find more, etc. Most of this has been mingw-specific, but I addressed some of the test-related warnings by removing ifdefs so that the same code is compiled in both mingw and non-mingw cases. I think we've settled on a local fixed point, with the result triggering only the two XDR warnings I already wrote about. This patch series includes all of the above (leaving out 10K lines of automatically-pulled-from-gnulib diffs) and cleans up the state of .cvsignore and .gitignore files: 1 exempt gnulib from ctype-macros prohibition 2 exempt gnulib from write-avoidance syntax check 3 use ARRAY_CARDINALITY more 4 * src/network_conf.c: Include <string.h> for declaration of memcmp. 5 adapt to API change in gnulib 6 use more gnulib modules 7 updates from gnulib (this is the 10K-line diff -- mostly omitted) 8 socketcompat.h: simplify, to match latest gnulib 9 use errno, not socket_errno() 10 remove duplicate inclusion of "remote_protocol.h" (before <config.h>!) 11 * src/remote_internal.c (remoteFindDaemonPath) [!WIN32]: Don't compile. 12 include netinet etc #ifndef HAVE_WINSOCK2_H 13 * qemud/remote_protocol.x: Include "remote_protocol.h" and <rpc/xdr.h>. 14 * remote_protocol.c, remote_protocol.h: regenerate 15 cvsignore mingw build artifacts: *.exe 16 avoid many mingw-specific warnings 17 avoid compiler warning when all storage backends are disabled

2 44

[libvirt] xen driver & events
by Ben Guthro 28 Oct '08

28 Oct '08

I'm looking into implementing emitting events from the xen driver, and I've run into a bit of a snag that I would like to discuss I've attached an old version of my patch for reference. However - from past discussions, I know that there was a desire to keep the xen driver stateless. However, given the semantics of xenstore watches, and events, I'm not sure I can see a way to preserve this. Lets take the case of creating a new domain: XenStore gives us the functionaliity to put a watch on the special xenstore key @introduceDomain. However, when the watch fires - I see no mechanism of determining which domain has been introduced. The only mechanism I can find is to maintain a list of domains, and keep this up to date with events. So I'm wondering if anyone has any ideas, or if this will introduce unwanted, but necessary state into the driver? Ben

2 1

[libvirt] anyone implementing host device enumeration?
by David Lively 28 Oct '08

28 Oct '08

Hi - I'm about to start working on host device enumeration, along the (HAL-ish) lines of what was discussed back in April: https://www.redhat.com/archives/libvir-list/2008-April/msg00005.html I know the xml details haven't been fully fleshed out, but there seems to be agreement that it will be a fairly direct mapping from (a subset of the) HAL info to the details that we need in the xml. Doubtless it will take a while to figure out exactly what subset suffices (and, for that matter, if everything needed is available via HAL ...), but I think the work is well-defined for some of the obvious details (discussed in the above thread) on which there's broad agreement. Is anyone working on such an implementation? Thanks, Dave

3 37

[libvirt] Live migration sanity checks
by Chris Lalancette 28 Oct '08

28 Oct '08

All, One thing that oVirt would like to have (and that might be useful for other users) is a call that would do some basic sanity checking for live migration. This call would go over to the remote libvirtd, do some checks, and return whether we think migration is likely to succeed. Note that I say "likely to succeed", because there are certainly things that can cause migration to fail after we've made checks, but anything is better than what we have today ("try it and pray"). Now, in order for this call to be widely useful, I think we would have to allow the caller to specify *which* of the available checks they would like to perform, and then have some sort of return value that indicated if there are show-stopper problems, or just problems that may cause things to be sub-optimal on the remote side. The caller could then decide what action it wants to take. There is also a corollary to the "is it sane for me to migrate", which is, given two hosts A and B, what's the lowest common denominator I need to run my guest at so that migration will likely be successful between them. This could also be used by management apps to make sure things are configured properly for the guest before ever starting it. The biggest problem with implementing these calls, however, is that there is no comprehensive list of things we should check. This e-mail is an attempt to write down some of the more obvious things we need to check, and to garner discussion of things I might have missed. Once I have a proper list, I'll add it to the TODO page on the libvirt Wiki so it's at least somewhere permanent. Note that we don't have to implement *all* of these as a first go at this; if we leave it open enough, we can add more checks as we go along without breaking compatibility. MIGRATION CRITERIA: 0) Matching hypervisors - seems obvious, but I'm not sure if we have these checks today. Make sure we don't try to migrate Xen to KVM or vice-versa. We also might want to think of at least warning the caller if you try to migrate from a "newer" hypervisor (say, Xen 3.2) to an "older" hypervisor (say, Xen 3.1). That should, in theory, work, but maybe the caller would prefer not to do that if possible. Rich has pointed out that KVM and Xen are accidentally incompatible in libvirt, but we should make it explicit. 1) Matching CPU architectures - also obvious, but as far as I know today, there's no checking for this (well, at least in Xen; I don't know about libvirt). So you can happily attempt to migrate from i386 -> ia64, and watch the fireworks. We also need to make sure you can't migrate x86_64 -> i386. I believe i386 -> x86_64 should work, but this might be hypervisor dependent. 2) Matching CPU vendors - this one isn't a hard requirement; given the things below, we may still be likely to succeed even if we go from AMD to Intel or vice-versa. It still might be useful information for the caller to know. 3) CPU flags - the CPU flags of the destination *must* be a superset of the CPU flags that were presented to the guest at startup. Many OS's and application check for CPU flags once at startup to choose optimized routines, and then never check again; if they happened to select sse3, and sse3 is not there on the destination, then they will (eventually) crash. This is where the CPU masking technology and the lowest common denominator libvirt call can make a big difference. If you make sure to mask some of the CPU flags off of the guest when you are first creating it, then the destination host just needs a superset of the flags that were presented to the guest at bootup, which makes the problem easier. 4) Number of CPUs - generally, you want the destination to have at least one physical CPU for each virtual CPU assigned to the guest. However, I can see use cases where this might not be the case (temporary or emergency migrations). So this would probably be a warning, and the caller can make the choice of whether to proceed. 5a) Memory - non-NUMA -> non-NUMA - fairly straightforward. The destination must have enough memory to fit the guest memory. We might want to do some "extra" checking on the destination to make sure we aren't going to OOM the destination as soon as we arrive. 5b) Memory - non-NUMA -> NUMA - A little trickier. There are no cpusets we have to worry about, since we are coming from non-NUMA, but for absolute best performance, we should try to fit the whole guest into a single NUMA node. Of course, if that node is overloaded, that may be a bad idea. NUMA placement problem, basically. 5c) Memory - NUMA -> non-NUMA - Less tricky. On the destination, all memory is "equally" far away, so no need to worry about cpusets. Just have to make sure that there is enough memory on the destination for the guest. 5d) Memory - NUMA -> NUMA - Tricky, just like case 5b). Need to determine if there is enough memory in the machine first, then check if we can fit the guest in a single node, and also check if we can match the cpuset from the source on the destination. 6a) Networks - at the very least, the destination must have the same bridges configured as the source side. Whether those bridges are hooked to the same physical networks as the source or not is another question, and may be outside the bounds of what we can/should check. 6b) Networks - we need to make sure that the device model on the remote side supports the same devices as the source side. That is, if you have a e1000 nic on the source side, but your destination doesn't support it, you are going to fail the migration. 7a) Disks - we have to make sure that all of the disks on the source side are available on the destination side, at the same paths. To be entirely clear, we have to make sure that the file on the destination side is the *same* file as on the source side, not just a file with the same name. For traditional file-based, the best we can do may be path names. For device names (like LVM, actual disk partitions, etc.), we might be able to take advantage of device enumaration API's and validate that the device info is the same (UUID matching, etc.). 7b) Disks - Additionally, we need to make sure that the device model on the remote side supports the same devices as the source side. That is, if you have a virtio drive on the source side, but your destination host doesn't support virtio on the backend, you are going to fail. (virtio might be a bad example, but there might be further things in the device model in the future that we might not necessarily have on both ends). ------ That's the absolute basic criteria. More esoteric/less thought-out criteria follow: 8) Time skew - this is less thought out at the moment, but if you calibrated your lpj at boot time, and now you migrate to a host with a different clock frequency, your time will run either fast or slow compared to what you expect. Also synchronized vs. unsynchronized TSC could cause issues, etc. 9) PCI-passthrough - this is actually a check on the *source* side. If the guest is using a PCI passthrough device, it *usually* doesn't make sense to live migrate it. On the other hand, it looks like various groups are trying to make this work (with the bonding of a PV NIC to a PCI-passthrough NIC), so we need to keep that in mind, and not necessarily make this a hard failure. 10) MSR's?? - I've thought about this one before, but I'm not sure what the answer is. Unfortunately, MSR's in virtualization are sort of done hodge-podge. That is, some MSR's are emulated for the guests, some MSR's guests have direct control over, and some aren't emulated at all. This one can get ugly fast; it's probably something we want to leave until later. 11) CPUID?? - Not entirely sure about this one; there is a lot of model-specific information encoded in the various CPUID calls (things like cache size, cache line size, etc. etc). However, I don't know if CPUID instructions are trapped-n-emulated under the different hypervisors, or if they are done right on the processor itself. I guess if an OS or application called this at startup, cached the information, and then checked again later it might get upset, but it seems somewhat unlikely. Things that I've missed? Thanks, Chris Lalancette

6 9

[libvirt] mingw warnings
by Jim Meyering 27 Oct '08

27 Oct '08

I've been building with mingw to make sure that my gnulib-upgrade-and-extend patch doesn't break anything and found some compiler warnings. I fixed most of them, but this one is ugly: ../qemud/remote_protocol.c:317: warning: assignment from incompatible pointer type ../qemud/remote_protocol.c:346: warning: assignment from incompatible pointer type That's due to the fact that the mingw xdr.h header, /usr/i686-pc-mingw32/sys-root/mingw/include/rpc/xdr.h, defines this #define XDR_INLINE(xdrs, len) \ (*(xdrs)->x_ops->x_inline)(xdrs, len) and has an x_inline member of type long*, typedef struct { enum xdr_op x_op; /* operation; fast additional param */ struct xdr_ops { bool_t (*x_getlong)(); /* get a long from underlying stream */ bool_t (*x_putlong)(); /* put a long to " */ bool_t (*x_getbytes)();/* get some bytes from " */ bool_t (*x_putbytes)();/* put some bytes to " */ u_int (*x_getpostn)();/* returns bytes off from beginning */ bool_t (*x_setpostn)();/* lets you reposition the stream */ long * (*x_inline)(); /* buf quick ptr to buffered data */ while we're used to one with type matching buf: int32_t*: If you're serious about getting rid of warnings even on mingw, here's one approach: diff --git a/qemud/remote_protocol.c b/qemud/remote_protocol.c index 68e9696..c8cf504 100644 --- a/qemud/remote_protocol.c +++ b/qemud/remote_protocol.c @@ -314,7 +314,7 @@ xdr_remote_node_get_info_ret (XDR *xdrs, remote_node_get_info_ret *objp) return FALSE; if (!xdr_quad_t (xdrs, &objp->memory)) return FALSE; - buf = XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); + buf = (void*)XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); if (buf == NULL) { if (!xdr_int (xdrs, &objp->cpus)) return FALSE; @@ -343,7 +343,7 @@ xdr_remote_node_get_info_ret (XDR *xdrs, remote_node_get_info_ret *objp) return FALSE; if (!xdr_quad_t (xdrs, &objp->memory)) return FALSE; - buf = XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); + buf = (void*)XDR_INLINE (xdrs, 6 * BYTES_PER_XDR_UNIT); if (buf == NULL) { if (!xdr_int (xdrs, &objp->cpus)) return FALSE; Better would be to fix the decl in xdr.h, but probably not feasible. Alternatively, redefine XDR_INLINE for mingw, adding the void* cast in that. But that means peeking inside (and copying) the current definition, so I prefer the above. So I'm leaning towards using the patch above.

3 3

[libvirt] FYI: fixes to events code for mingw
by Daniel P. Berrange 24 Oct '08

24 Oct '08

FYI, I just committed the following patch to remove a couple of unneccessary includes of sys/poll.h, and disable the event-test demo on platforms which lack sys/poll.h This makes the mingw builds work again Regards, Daniel Index: configure.in =================================================================== RCS file: /data/cvs/libvirt/configure.in,v retrieving revision 1.176 diff -u -p -r1.176 configure.in --- configure.in 23 Oct 2008 13:18:18 -0000 1.176 +++ configure.in 24 Oct 2008 13:08:15 -0000 @@ -70,7 +70,7 @@ dnl Availability of various common funct AC_CHECK_FUNCS([cfmakeraw regexec uname sched_getaffinity getuid getgid]) dnl Availability of various common headers (non-fatal if missing). -AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h sched.h termios.h]) +AC_CHECK_HEADERS([pwd.h paths.h regex.h sys/syslimits.h sys/utsname.h sys/wait.h winsock2.h sched.h termios.h sys/poll.h]) dnl Where are the XDR functions? dnl If portablexdr is installed, prefer that. Index: examples/domain-events/events-c/event-test.c =================================================================== RCS file: /data/cvs/libvirt/examples/domain-events/events-c/event-test.c,v retrieving revision 1.1 diff -u -p -r1.1 event-test.c --- examples/domain-events/events-c/event-test.c 23 Oct 2008 13:18:18 -0000 1.1 +++ examples/domain-events/events-c/event-test.c 24 Oct 2008 13:08:15 -0000 @@ -1,6 +1,9 @@ #include <config.h> + #include <stdio.h> #include <string.h> + +#if HAVE_SYS_POLL_H #include <sys/types.h> #include <sys/poll.h> #include <libvirt/libvirt.h> @@ -259,3 +262,9 @@ int main(int argc, char **argv) return 0; } +#else +int main(void) { + printf("event-test program not available without sys/poll.h support\n"); + return 1; +} +#endif Index: src/libvirt.c =================================================================== RCS file: /data/cvs/libvirt/src/libvirt.c,v retrieving revision 1.162 diff -u -p -r1.162 libvirt.c --- src/libvirt.c 24 Oct 2008 08:55:13 -0000 1.162 +++ src/libvirt.c 24 Oct 2008 13:08:16 -0000 @@ -16,7 +16,6 @@ #include <string.h> #include <sys/types.h> #include <sys/stat.h> -#include <sys/poll.h> #include <unistd.h> #include <assert.h> #ifdef HAVE_SYS_WAIT_H Index: src/remote_internal.c =================================================================== RCS file: /data/cvs/libvirt/src/remote_internal.c,v retrieving revision 1.89 diff -u -p -r1.89 remote_internal.c --- src/remote_internal.c 23 Oct 2008 13:18:18 -0000 1.89 +++ src/remote_internal.c 24 Oct 2008 13:08:16 -0000 @@ -34,7 +34,6 @@ #include <signal.h> #include <sys/types.h> #include <sys/stat.h> -#include <sys/poll.h> #include <fcntl.h> #ifdef HAVE_SYS_WAIT_H -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

3 2

[libvirt] PATCH: Remove util-lib file and replace with libvirt_util.la
by Daniel P. Berrange 24 Oct '08

24 Oct '08

We've currently got a slightly nasty hack where some of the stuff from util.c is split into a util-lib.c file so it can be compiled twice, once for libvirt.la, and second for virsh, without exporting it in our public API. I'm trying to clean up the code / file deps and build stuff in preparation of dlopen() support of drivers. We also have a bunch of stuff in util.a that is exported unofficially in the ABI. This patch demonstrates a different approach, putting the util-lib.c code back into util.c. We then define a libtool convenience library covering a bunch of our generic common code, that is linked to both libvirt.la and virsh. This also lets us remove most of the secret exports from util.c. The main change is that a little more code is statically linked into virsh binary itself. Personally I don't think this is a huge problem. Another possible approach though could be to create a real libvirt-common.so file which gets installed into /usr/lib, but is explicitly not preserving ABI. We could enforce this by using a version script to encode a version number against every symbol. This would mean anyone linking to the libvirt-common.so would be forced to relink on every new update - which would be such a PITA only in-tree programs like virsh & libvirtd would do it. Daniel diff -r 5bd402f3762e configure.in --- a/configure.in Fri Oct 24 14:13:53 2008 +0100 +++ b/configure.in Fri Oct 24 14:14:07 2008 +0100 @@ -671,6 +671,8 @@ with_storage_dir=yes if test "$with_libvirtd" = "no"; then + with_qemu=no + with_lxc=no with_storage_dir=no with_storage_fs=no with_storage_lvm=no diff -r 5bd402f3762e qemud/Makefile.am --- a/qemud/Makefile.am Fri Oct 24 14:13:53 2008 +0100 +++ b/qemud/Makefile.am Fri Oct 24 14:14:07 2008 +0100 @@ -9,8 +9,7 @@ remote_dispatch_prototypes.h \ remote_dispatch_localvars.h \ remote_dispatch_proc_switch.h \ - remote_protocol.h remote_protocol.c \ - $(srcdir)/../src/util-lib.c + remote_protocol.h remote_protocol.c AVAHI_SOURCES = \ mdns.c mdns.h @@ -88,7 +87,7 @@ $(POLKIT_LIBS) libvirtd_DEPENDENCIES = ../src/libvirt.la -libvirtd_LDADD = ../src/libvirt.la ../gnulib/lib/libgnu.la +libvirtd_LDADD = ../src/libvirt.la ../src/libvirt_util.la ../gnulib/lib/libgnu.la if HAVE_POLKIT policydir = $(datadir)/PolicyKit/policy diff -r 5bd402f3762e src/Makefile.am --- a/src/Makefile.am Fri Oct 24 14:13:53 2008 +0100 +++ b/src/Makefile.am Fri Oct 24 14:14:07 2008 +0100 @@ -37,21 +37,30 @@ lib_LTLIBRARIES = libvirt.la +noinst_LTLIBRARIES = libvirt_util.la + # These files are not related to driver APIs. Simply generic # helper APIs for various purposes -GENERIC_LIB_SOURCES = \ - bridge.c bridge.h \ +UTIL_SOURCES = \ buf.c buf.h \ conf.c conf.h \ event.c event.h \ - iptables.c iptables.h \ memory.c memory.h \ qparams.c qparams.h \ - stats_linux.c stats_linux.h \ uuid.c uuid.h \ util.c util.h \ virterror.c \ xml.c xml.h + +DRIVER_SOURCES = \ + driver.h \ + hash.c hash.h \ + internal.h \ + libvirt.c \ + bridge.c bridge.h \ + iptables.c iptables.h \ + stats_linux.c stats_linux.h + # Domain driver generic impl APIs DOMAIN_CONF_SOURCES = \ @@ -147,14 +156,13 @@ # First deal with sources usable in non-daemon context libvirt_la_SOURCES = \ - driver.h \ - hash.c hash.h \ - internal.h \ - libvirt.c \ - $(GENERIC_LIB_SOURCES) \ + $(DRIVER_SOURCES) \ $(DOMAIN_CONF_SOURCES) \ $(NETWORK_CONF_SOURCES) \ $(STORAGE_CONF_SOURCES) + +libvirt_util_la_SOURCES = \ + $(UTIL_SOURCES) # Drivers usable outside daemon context if WITH_TEST @@ -180,6 +188,7 @@ endif libvirt_la_SOURCES += $(STORAGE_DRIVER_SOURCES) libvirt_la_SOURCES += $(STORAGE_DRIVER_FS_SOURCES) +endif if WITH_QEMU libvirt_la_SOURCES += $(QEMU_DRIVER_SOURCES) @@ -200,7 +209,6 @@ if WITH_STORAGE_DISK libvirt_la_SOURCES += $(STORAGE_DRIVER_DISK_SOURCES) endif -endif # Add all conditional sources just in case... EXTRA_DIST += \ @@ -220,17 +228,18 @@ libvirt_la_LIBADD = $(LIBXML_LIBS) $(GNUTLS_LIBS) $(SASL_LIBS) $(SELINUX_LIBS) \ $(NUMACTL_LIBS) \ + libvirt_util.la \ @CYGWIN_EXTRA_LIBADD@ ../gnulib/lib/libgnu.la libvirt_la_LDFLAGS = -Wl,--version-script=$(srcdir)/libvirt_sym.version \ -version-info @LIBVIRT_VERSION_INFO@ \ $(COVERAGE_CFLAGS:-f%=-Wc,-f%) \ @CYGWIN_EXTRA_LDFLAGS@ @MINGW_EXTRA_LDFLAGS@ -libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) -DIN_LIBVIRT +libvirt_la_CFLAGS = $(COVERAGE_CFLAGS) # Create an automake "convenience library" version of libvirt_la, # just for testing, since the test harness requires access to internal # bits and pieces that we don't want to make publicly accessible. -noinst_LTLIBRARIES = libvirt_test.la +noinst_LTLIBRARIES += libvirt_test.la # Convert libvirt_sym.version # to libvirt_test_sym.version, and @@ -250,12 +259,11 @@ virsh_SOURCES = \ console.c console.h \ - util-lib.c util-lib.h \ virsh.c virsh_LDFLAGS = $(WARN_CFLAGS) $(COVERAGE_LDFLAGS) virsh_DEPENDENCIES = $(DEPS) -virsh_LDADD = $(LDADDS) $(VIRSH_LIBS) +virsh_LDADD = $(LDADDS) $(VIRSH_LIBS) libvirt_util.la virsh_CFLAGS = $(COVERAGE_CFLAGS) $(READLINE_CFLAGS) BUILT_SOURCES = virsh-net-edit.c virsh-pool-edit.c @@ -320,7 +328,6 @@ libexec_PROGRAMS = if WITH_STORAGE_DISK -if WITH_LIBVIRTD libexec_PROGRAMS += libvirt_parthelper libvirt_parthelper_SOURCES = $(STORAGE_HELPER_DISK_SOURCES) @@ -328,22 +335,19 @@ libvirt_parthelper_LDADD = $(LIBPARTED_LIBS) libvirt_parthelper_CFLAGS = $(LIBPARTED_CFLAGS) endif -endif EXTRA_DIST += $(STORAGE_HELPER_DISK_SOURCES) if WITH_LXC -if WITH_LIBVIRTD libexec_PROGRAMS += libvirt_lxc libvirt_lxc_SOURCES = \ $(LXC_CONTROLLER_SOURCES) \ - $(GENERIC_LIB_SOURCES) \ $(DOMAIN_CONF_SOURCES) libvirt_lxc_LDFLAGS = $(WARN_CFLAGS) $(COVERAGE_LDCFLAGS) -libvirt_lxc_LDADD = $(LIBXML_LIBS) ../gnulib/lib/libgnu.la +libvirt_lxc_LDADD = $(LIBXML_LIBS) ../gnulib/lib/libgnu.la \ + libvirt_util.la libvirt_lxc_CFLAGS = $(LIBPARTED_CFLAGS) -endif endif EXTRA_DIST += $(LXC_CONTROLLER_SOURCES) diff -r 5bd402f3762e src/buf.c --- a/src/buf.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/buf.c Fri Oct 24 14:14:07 2008 +0100 @@ -88,7 +88,7 @@ * */ void -__virBufferAdd(const virBufferPtr buf, const char *str, int len) +virBufferAdd(const virBufferPtr buf, const char *str, int len) { unsigned int needSize; @@ -120,7 +120,7 @@ * */ void -__virBufferAddChar (virBufferPtr buf, char c) +virBufferAddChar (virBufferPtr buf, char c) { unsigned int needSize; @@ -150,7 +150,7 @@ * Returns the buffer content or NULL in case of error. */ char * -__virBufferContentAndReset(const virBufferPtr buf) +virBufferContentAndReset(const virBufferPtr buf) { char *str; if (buf == NULL) @@ -176,7 +176,7 @@ * Return true if in error, 0 if normal */ int -__virBufferError(const virBufferPtr buf) +virBufferError(const virBufferPtr buf) { if (buf == NULL) return 1; @@ -208,7 +208,7 @@ * Do a formatted print to an XML buffer. */ void -__virBufferVSprintf(const virBufferPtr buf, const char *format, ...) +virBufferVSprintf(const virBufferPtr buf, const char *format, ...) { int size, count, grow_size; va_list locarg, argptr; diff -r 5bd402f3762e src/buf.h --- a/src/buf.h Fri Oct 24 14:13:53 2008 +0100 +++ b/src/buf.h Fri Oct 24 14:14:07 2008 +0100 @@ -34,25 +34,18 @@ }; #endif -char *__virBufferContentAndReset(const virBufferPtr buf); -int __virBufferError(const virBufferPtr buf); +char *virBufferContentAndReset(const virBufferPtr buf); +int virBufferError(const virBufferPtr buf); unsigned int virBufferUse(const virBufferPtr buf); -void __virBufferAdd(const virBufferPtr buf, const char *str, int len); -void __virBufferAddChar(const virBufferPtr buf, char c); -void __virBufferVSprintf(const virBufferPtr buf, const char *format, ...) +void virBufferAdd(const virBufferPtr buf, const char *str, int len); +void virBufferAddChar(const virBufferPtr buf, char c); +void virBufferVSprintf(const virBufferPtr buf, const char *format, ...) ATTRIBUTE_FORMAT(printf, 2, 3); void virBufferStrcat(const virBufferPtr buf, ...); void virBufferEscapeString(const virBufferPtr buf, const char *format, const char *str); void virBufferURIEncodeString (const virBufferPtr buf, const char *str); #define virBufferAddLit(buf_, literal_string_) \ - __virBufferAdd (buf_, "" literal_string_ "", sizeof literal_string_ - 1) - -#define virBufferAdd(b,s,l) __virBufferAdd((b),(s),(l)) -#define virBufferAddChar(b,c) __virBufferAddChar((b),(c)) -#define virBufferVSprintf(b,f,...) __virBufferVSprintf((b),(f), __VA_ARGS__) - -#define virBufferContentAndReset(b) __virBufferContentAndReset((b)) -#define virBufferError(b) __virBufferError((b)) + virBufferAdd (buf_, "" literal_string_ "", sizeof literal_string_ - 1) #endif /* __VIR_BUFFER_H__ */ diff -r 5bd402f3762e src/conf.c --- a/src/conf.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/conf.c Fri Oct 24 14:14:07 2008 +0100 @@ -142,7 +142,7 @@ * Free a value */ void -__virConfFreeValue(virConfValuePtr val) +virConfFreeValue(virConfValuePtr val) { if (val == NULL) return; @@ -156,7 +156,7 @@ } virConfPtr -__virConfNew(void) +virConfNew(void) { virConfPtr ret; @@ -691,7 +691,7 @@ #define MAX_CONFIG_FILE_SIZE (1024*1024*10) /** - * __virConfReadFile: + * virConfReadFile: * @filename: the path to the configuration file. * * Reads a configuration file. @@ -700,7 +700,7 @@ * read or parse the file, use virConfFree() to free the data. */ virConfPtr -__virConfReadFile(const char *filename) +virConfReadFile(const char *filename) { char *content; int len; @@ -724,7 +724,7 @@ } /** - * __virConfReadMem: + * virConfReadMem: * @memory: pointer to the content of the configuration file * @len: length in byte * @@ -735,7 +735,7 @@ * parse the content, use virConfFree() to free the data. */ virConfPtr -__virConfReadMem(const char *memory, int len) +virConfReadMem(const char *memory, int len) { if ((memory == NULL) || (len < 0)) { virConfError(NULL, VIR_ERR_INVALID_ARG, __FUNCTION__); @@ -748,7 +748,7 @@ } /** - * __virConfFree: + * virConfFree: * @conf: a configuration file handle * * Frees all data associated to the handle @@ -756,7 +756,7 @@ * Returns 0 in case of success, -1 in case of error. */ int -__virConfFree(virConfPtr conf) +virConfFree(virConfPtr conf) { virConfEntryPtr tmp; if (conf == NULL) { @@ -779,7 +779,7 @@ } /** - * __virConfGetValue: + * virConfGetValue: * @conf: a configuration file handle * @entry: the name of the entry * @@ -789,7 +789,7 @@ * associated will be freed when virConfFree() is called */ virConfValuePtr -__virConfGetValue(virConfPtr conf, const char *setting) +virConfGetValue(virConfPtr conf, const char *setting) { virConfEntryPtr cur; @@ -803,7 +803,7 @@ } /** - * __virConfSetValue: + * virConfSetValue: * @conf: a configuration file handle * @entry: the name of the entry * @value: the new configuration value @@ -816,7 +816,7 @@ * Returns 0 on success, or -1 on failure. */ int -__virConfSetValue (virConfPtr conf, +virConfSetValue (virConfPtr conf, const char *setting, virConfValuePtr value) { @@ -861,7 +861,7 @@ /** - * __virConfWriteFile: + * virConfWriteFile: * @filename: the path to the configuration file. * @conf: the conf * @@ -870,7 +870,7 @@ * Returns the number of bytes written or -1 in case of error. */ int -__virConfWriteFile(const char *filename, virConfPtr conf) +virConfWriteFile(const char *filename, virConfPtr conf) { virBuffer buf = VIR_BUFFER_INITIALIZER; virConfEntryPtr cur; @@ -915,7 +915,7 @@ } /** - * __virConfWriteMem: + * virConfWriteMem: * @memory: pointer to the memory to store the config file * @len: pointer to the length in bytes of the store, on output the size * @conf: the conf @@ -928,7 +928,7 @@ * Returns the number of bytes written or -1 in case of error. */ int -__virConfWriteMem(char *memory, int *len, virConfPtr conf) +virConfWriteMem(char *memory, int *len, virConfPtr conf) { virBuffer buf = VIR_BUFFER_INITIALIZER; virConfEntryPtr cur; diff -r 5bd402f3762e src/conf.h --- a/src/conf.h Fri Oct 24 14:13:53 2008 +0100 +++ b/src/conf.h Fri Oct 24 14:14:07 2008 +0100 @@ -61,32 +61,22 @@ typedef struct _virConf virConf; typedef virConf *virConfPtr; -virConfPtr __virConfNew (void); -virConfPtr __virConfReadFile (const char *filename); -virConfPtr __virConfReadMem (const char *memory, +virConfPtr virConfNew (void); +virConfPtr virConfReadFile (const char *filename); +virConfPtr virConfReadMem (const char *memory, int len); -int __virConfFree (virConfPtr conf); -void __virConfFreeValue (virConfValuePtr val); +int virConfFree (virConfPtr conf); +void virConfFreeValue (virConfValuePtr val); -virConfValuePtr __virConfGetValue (virConfPtr conf, +virConfValuePtr virConfGetValue (virConfPtr conf, const char *setting); -int __virConfSetValue (virConfPtr conf, +int virConfSetValue (virConfPtr conf, const char *setting, virConfValuePtr value); -int __virConfWriteFile (const char *filename, +int virConfWriteFile (const char *filename, virConfPtr conf); -int __virConfWriteMem (char *memory, +int virConfWriteMem (char *memory, int *len, virConfPtr conf); -#define virConfNew() __virConfNew() -#define virConfReadFile(f) __virConfReadFile((f)) -#define virConfReadMem(m,l) __virConfReadMem((m),(l)) -#define virConfFree(c) __virConfFree((c)) -#define virConfFreeValue(v) __virConfFreeValue((v)) -#define virConfGetValue(c,s) __virConfGetValue((c),(s)) -#define virConfSetValue(c,s,v) __virConfSetValue((c),(s),(v)) -#define virConfWriteFile(f,c) __virConfWriteFile((f),(c)) -#define virConfWriteMem(m,l,c) __virConfWriteMem((m),(l),(c)) - #endif /* __VIR_CONF_H__ */ diff -r 5bd402f3762e src/console.c --- a/src/console.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/console.c Fri Oct 24 14:14:07 2008 +0100 @@ -37,7 +37,7 @@ #include "console.h" #include "internal.h" -#include "util-lib.h" +#include "util.h" /* ie Ctrl-] as per telnet */ #define CTRL_CLOSE_BRACKET '\35' diff -r 5bd402f3762e src/libvirt_sym.version --- a/src/libvirt_sym.version Fri Oct 24 14:13:53 2008 +0100 +++ b/src/libvirt_sym.version Fri Oct 24 14:14:07 2008 +0100 @@ -157,15 +157,6 @@ guarentee provided for the public symbols above */ - __virConfNew; - __virConfReadFile; - __virConfReadMem; - __virConfFree; - __virConfGetValue; - __virConfSetValue; - __virConfWriteFile; - __virConfWriteMem; - __virGetDomain; __virGetNetwork; __virGetStoragePool; @@ -183,21 +174,5 @@ __virDomainMigratePerform; __virDomainMigrateFinish; - __virFileReadAll; - __virStrToLong_i; - __virStrToLong_ull; - - __virBufferVSprintf; - __virBufferAdd; - __virBufferAddChar; - __virBufferContentAndReset; - __virBufferError; - - __virMacAddrCompare; - - __virAlloc; - __virAllocN; - __virReallocN; - __virFree; local: *; }; diff -r 5bd402f3762e src/util-lib.c --- a/src/util-lib.c Fri Oct 24 14:13:53 2008 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,52 +0,0 @@ -/* - * common, generic utility functions - * - * Copyright (C) 2006, 2007, 2008 Red Hat, Inc. - * See COPYING.LIB for the License of this software - */ - -#include <config.h> - -#include <unistd.h> -#include <errno.h> - -#include "util-lib.h" - -/* Like read(), but restarts after EINTR */ -int saferead(int fd, void *buf, size_t count) -{ - size_t nread = 0; - while (count > 0) { - ssize_t r = read(fd, buf, count); - if (r < 0 && errno == EINTR) - continue; - if (r < 0) - return r; - if (r == 0) - return nread; - buf = (char *)buf + r; - count -= r; - nread += r; - } - return nread; -} - -/* Like write(), but restarts after EINTR */ -ssize_t safewrite(int fd, const void *buf, size_t count) -{ - size_t nwritten = 0; - while (count > 0) { - ssize_t r = write(fd, buf, count); - - if (r < 0 && errno == EINTR) - continue; - if (r < 0) - return r; - if (r == 0) - return nwritten; - buf = (const char *)buf + r; - count -= r; - nwritten += r; - } - return nwritten; -} diff -r 5bd402f3762e src/util-lib.h --- a/src/util-lib.h Fri Oct 24 14:13:53 2008 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,25 +0,0 @@ -/* - * private utility functions - * - * Copyright (C) 2008 Red Hat, Inc. - * See COPYING.LIB for the License of this software - */ - -#ifndef __UTIL_LIB_H__ -#define __UTIL_LIB_H__ - -#include <sys/types.h> - -/* - * To avoid a double definition of the function when compiling - * programs using both util-lib and libvirt, like virsh - */ -#ifdef IN_LIBVIRT -#define saferead libvirt_saferead -#define safewrite libvirt_safewrite -#endif - -int saferead(int fd, void *buf, size_t count); -ssize_t safewrite(int fd, const void *buf, size_t count); - -#endif diff -r 5bd402f3762e src/util.c --- a/src/util.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/util.c Fri Oct 24 14:14:07 2008 +0100 @@ -52,7 +52,6 @@ #include "buf.h" #include "util.h" #include "memory.h" -#include "util-lib.c" #ifndef NSIG # define NSIG 32 @@ -502,7 +501,7 @@ } /* Like virFileReadLimFP, but use a file descriptor rather than a FILE*. */ -int __virFileReadLimFD(int fd_arg, int maxlen, char **buf) +int virFileReadLimFD(int fd_arg, int maxlen, char **buf) { int fd = dup (fd_arg); if (fd >= 0) { @@ -522,7 +521,7 @@ return -1; } -int __virFileReadAll(const char *path, int maxlen, char **buf) +int virFileReadAll(const char *path, int maxlen, char **buf) { FILE *fh = fopen(path, "r"); if (fh == NULL) { @@ -812,7 +811,7 @@ validity. This function is careful to return -1 when the string S represents a number that is not representable as an "int". */ int -__virStrToLong_i(char const *s, char **end_ptr, int base, int *result) +virStrToLong_i(char const *s, char **end_ptr, int base, int *result) { long int val; char *p; @@ -869,7 +868,7 @@ /* Just like virStrToLong_i, above, but produce an "unsigned long long" value. */ int -__virStrToLong_ull(char const *s, char **end_ptr, int base, unsigned long long *result) +virStrToLong_ull(char const *s, char **end_ptr, int base, unsigned long long *result) { unsigned long long val; char *p; @@ -941,7 +940,7 @@ * as well as leading zeros. */ int -__virMacAddrCompare (const char *p, const char *q) +virMacAddrCompare (const char *p, const char *q) { unsigned char c, d; do { @@ -1090,3 +1089,44 @@ return idx; } + + +/* Like read(), but restarts after EINTR */ +int saferead(int fd, void *buf, size_t count) +{ + size_t nread = 0; + while (count > 0) { + ssize_t r = read(fd, buf, count); + if (r < 0 && errno == EINTR) + continue; + if (r < 0) + return r; + if (r == 0) + return nread; + buf = (char *)buf + r; + count -= r; + nread += r; + } + return nread; +} + +/* Like write(), but restarts after EINTR */ +ssize_t safewrite(int fd, const void *buf, size_t count) +{ + size_t nwritten = 0; + while (count > 0) { + ssize_t r = write(fd, buf, count); + + if (r < 0 && errno == EINTR) + continue; + if (r < 0) + return r; + if (r == 0) + return nwritten; + buf = (const char *)buf + r; + count -= r; + nwritten += r; + } + return nwritten; +} + diff -r 5bd402f3762e src/util.h --- a/src/util.h Fri Oct 24 14:13:53 2008 +0100 +++ b/src/util.h Fri Oct 24 14:14:07 2008 +0100 @@ -25,7 +25,6 @@ #ifndef __VIR_UTIL_H__ #define __VIR_UTIL_H__ -#include "util-lib.h" #include "verify.h" #include <sys/select.h> @@ -46,11 +45,12 @@ int flags); int virRun(virConnectPtr conn, const char *const*argv, int *status); -int __virFileReadLimFD(int fd, int maxlen, char **buf); -#define virFileReadLimFD(fd,m,b) __virFileReadLimFD((fd),(m),(b)) +int saferead(int fd, void *buf, size_t count); +ssize_t safewrite(int fd, const void *buf, size_t count); -int __virFileReadAll(const char *path, int maxlen, char **buf); -#define virFileReadAll(p,m,b) __virFileReadAll((p),(m),(b)) +int virFileReadLimFD(int fd, int maxlen, char **buf); + +int virFileReadAll(const char *path, int maxlen, char **buf); int virFileMatchesNameSuffix(const char *file, const char *name, @@ -88,11 +88,10 @@ int virFileDeletePid(const char *dir, const char *name); -int __virStrToLong_i(char const *s, - char **end_ptr, - int base, - int *result); -#define virStrToLong_i(s,e,b,r) __virStrToLong_i((s),(e),(b),(r)) +int virStrToLong_i(char const *s, + char **end_ptr, + int base, + int *result); int virStrToLong_ui(char const *s, char **end_ptr, @@ -102,14 +101,12 @@ char **end_ptr, int base, long long *result); -int __virStrToLong_ull(char const *s, - char **end_ptr, - int base, - unsigned long long *result); -#define virStrToLong_ull(s,e,b,r) __virStrToLong_ull((s),(e),(b),(r)) +int virStrToLong_ull(char const *s, + char **end_ptr, + int base, + unsigned long long *result); -int __virMacAddrCompare (const char *mac1, const char *mac2); -#define virMacAddrCompare(mac1,mac2) __virMacAddrCompare((mac1),(mac2)) +int virMacAddrCompare (const char *mac1, const char *mac2); void virSkipSpaces(const char **str); int virParseNumber(const char **str); diff -r 5bd402f3762e src/virsh.c --- a/src/virsh.c Fri Oct 24 14:13:53 2008 +0100 +++ b/src/virsh.c Fri Oct 24 14:14:07 2008 +0100 @@ -47,7 +47,6 @@ #include "buf.h" #include "console.h" #include "util.h" -#include "util-lib.h" static char *progname; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

1 0

[libvirt] [PATCH] fix mingw compilation warning
by Jim Meyering 24 Oct '08

24 Oct '08

Building for mingw, I got this warning: libvirt.c:242: warning: control reaches end of non-void function Here's the fix: fix mingw compilation warning * src/libvirt.c (winsock_init) [HAVE_WINSOCK2_H]: Always return a value. diff --git a/src/libvirt.c b/src/libvirt.c index ca2675a..05a92d3 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -237,8 +237,7 @@ winsock_init (void) /* http://msdn2.microsoft.com/en-us/library/ms742213.aspx */ winsock_version = MAKEWORD (2, 2); err = WSAStartup (winsock_version, &winsock_data); - if (err != 0) - return -1; + return err == 0 ? 0 : -1; } #endif -- 1.6.0.2.588.g3102

3 3

[libvirt] [PATCH] Allow changing ejectable device in domains using default qemu emulator
by Stuart Jansen 23 Oct '08

23 Oct '08

When a qemu domain is launched but an emulator is not explicitly defined, the default emulator is used. Attempts to attach ejectable devices to a domains using the default emulator fail with the error: "Error Connecting CDROM: internal error\nCannot determine QEMU argv syntax (null)". The following patch is based on similar code in qemudStartVMDaemon() and qemudBuildCommandLine(). I've tested it and it works. Honestly, though, I think this patch is just a band-aid. I'd like to supply a better patch, but I don't have enough experience to judge certain side effects. Instead of requiring functions to determine the emulator that will be used to launch the next qemu domain, qemudStartVMDaemon() should record the emulator that was used to start the current domain. It should also record the emulator's capabilities. This would make it unnecessary to call virDomainDefDefaultEmulator() in qemudDomainChangeEjectableMedia(). It would also make it possible to remove the virDomainDefDefaultEmulator() call from qemudBuildCommandLine(). However, testCompareXMLToArgvFiles() will fail because qemudBuildCommandLine() needs to know vm->def->emulator and virDomainDefParseFile() doesn't set vm->def->emulator to a default value. I don't know if this is a real problem, or if it just means the test needs to be updated. In addition, if we simply set vm->dev->emulator = strdup(virDomainDefDefaultEmulator()) in qemudStartVMDaemon() then virDomainDefFormat() will dump <emulator>...</emulator> for domains that did't actually have it explicitly defined. I don't know if this is a bug or improvement, but it is a change in behavior.

2 1

[libvirt] hourly cvs snapshot broken
by Stuart Jansen 23 Oct '08

23 Oct '08

Now sure where to report this. Looks like that hourly CVS snapshot haven't been working for more than a month. If hourly snapshots are no longer being created, the Web site should probably be update. http://libvirt.org/downloads.html

2 1

[libvirt] [PATCH 00/12] Domain Events - Round 3
by Ben Guthro 23 Oct '08

23 Oct '08

The following patch series implements the Events API discussed here previously in this thread: http://www.redhat.com/archives/libvir-list/2008-September/msg00321.html http://www.redhat.com/archives/libvir-list/2008-October/msg00245.html and https://www.redhat.com/archives/libvir-list/2008-October/msg00432.html Once again, I have broken these into the following patches: events-01-public-api Changes to libvirt.h, and libvirt.c events-02-internal-api Changes to internal.h and event code events-03-qemud Changes to the daemon events-04-qemud-rpc-protocol Changes to the qemud rpc protocol events-05-driver.patch Changes to the driver API events-06-driver-qemu Changes to the qemu driver events-07-driver-remote Changes to the remote driver events-08-driver-lxc Minor changes to LXC driver structure to prevent compile errors events-09-driver-openvz Minor changes to openvz driver structure to prevent compile errors events-10-driver-test Minor changes to test driver structure to prevent compile errors events-11-example-testapp Test app, and infrastructure changes for an example dir events-12-python-ignore.patch Add functions to be ignored, for now Differences from last submission - Formatting issues brought up by Daniel V Some protocol simplifications General fixes suggested from last time around. Removal of POLLxxx stuff (this caused a bit of churn) I think I got them all, but please let me know if I missed something. Again, domain events are only emitted from qemu/kvm guests. Ben Guthro

3 34

[libvirt] [PATCH]: Export <device> during logical pool discovery
by Chris Lalancette 23 Oct '08

23 Oct '08

Attached is an updated patch for adding <device> tags to logical findPoolSources. Given danpb's last feedback, I completely removed the XML parsing and did it all with structures. The result should (hopefully) be a lot easier on the eyes, and is a little more generic. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH]: Add default pool types
by Chris Lalancette 23 Oct '08

23 Oct '08

As suggested by danpb, to fix up the regression caused by last week's VIR_ENUM cleanup patch, add a ".defaultFormat" member to .poolOptions. In storage_conf.c, if virXPathString(/pool/source/format/@type) returns NULL, then set the pool type to .defaultFormat; otherwise, lookup the type via formatFromString. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

3 3

[libvirt] [PATCH 1/2] adapt to API change in gnulib
by Jim Meyering 23 Oct '08

23 Oct '08

This is actually two changes sets. The first part is an update from gnulib (including the fix for API change), the second adjusts .cvsignore files (sorting at same time) so that "git status" is clean after you run "make sync-vcs-ignore-files" to generate all .gitignore files. For reference, the complete (5000+-line) patch is here: http://meyering.net/code/tmp/libvirt-gnulib.patch If no one comments, I'll commit this in a couple hours. Jim >From 89a1178cd0beaadbda730aacc67fe8f27e919914 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Wed, 22 Oct 2008 16:56:58 +0200 Subject: [PATCH 1/2] adapt to API change in gnulib * qemud/qemud.c: Include <netdb.h>, not "getaddrinfo.h" * src/remote_internal.c: Likewise. updates from gnulib * gnulib/lib/.cvsignore: * gnulib/lib/Makefile.am: ... --- .gitignore | 32 --- gnulib/lib/.cvsignore | 6 + gnulib/lib/.gitignore | 23 -- gnulib/lib/Makefile.am | 194 +++++++++++++-- gnulib/lib/arpa_inet.in.h | 6 + gnulib/lib/c-ctype.h | 17 ++- gnulib/lib/float.in.h | 6 +- gnulib/lib/gai_strerror.c | 7 +- gnulib/lib/getaddrinfo.c | 18 ++- gnulib/lib/getaddrinfo.h | 163 ------------ gnulib/lib/getdelim.c | 15 +- gnulib/lib/netinet_in.in.h | 6 +- gnulib/lib/poll.c | 439 ++++++++++++++++++++++++++++---- gnulib/lib/stdint.in.h | 5 +- gnulib/lib/stdio.in.h | 90 +++++++ gnulib/lib/stdlib.in.h | 83 ++++++ gnulib/lib/string.in.h | 22 ++- gnulib/lib/sys_select.in.h | 37 +++- gnulib/lib/sys_socket.in.h | 311 ++++++++++++++++++++++- gnulib/lib/sys_stat.in.h | 50 ++++- gnulib/lib/sys_time.in.h | 6 +- gnulib/lib/unistd.in.h | 167 ++++++++++++- gnulib/lib/vasnprintf.c | 82 ++++++- gnulib/lib/wchar.in.h | 10 + gnulib/m4/arpa_inet_h.m4 | 9 +- gnulib/m4/eoverflow.m4 | 70 ----- gnulib/m4/getaddrinfo.m4 | 16 +- gnulib/m4/getdelim.m4 | 1 + gnulib/m4/gnulib-cache.m4 | 2 +- gnulib/m4/gnulib-common.m4 | 12 +- gnulib/m4/gnulib-comp.m4 | 99 +++++++- gnulib/m4/include_next.m4 | 32 ++- gnulib/m4/inet_ntop.m4 | 5 +- gnulib/m4/inet_pton.m4 | 5 +- gnulib/m4/lib-link.m4 | 27 ++- gnulib/m4/lib-prefix.m4 | 88 +++++-- gnulib/m4/lock.m4 | 330 ++----------------------- gnulib/m4/posix-shell.m4 | 6 +- gnulib/m4/stdio_h.m4 | 132 ++++++---- gnulib/m4/stdlib_h.m4 | 11 +- gnulib/m4/strdup.m4 | 22 ++- gnulib/m4/string_h.m4 | 11 +- gnulib/m4/sys_select_h.m4 | 20 ++- gnulib/m4/sys_socket_h.m4 | 64 ++++- gnulib/m4/sys_stat_h.m4 | 6 +- gnulib/m4/unistd_h.m4 | 44 +++- gnulib/m4/wchar.m4 | 25 ++- gnulib/tests/.cvsignore | 22 ++ gnulib/tests/.gitignore | 29 -- gnulib/tests/Makefile.am | 193 +++++++++++++- gnulib/tests/dummy.c | 42 --- gnulib/tests/test-EOVERFLOW.c | 32 --- gnulib/tests/test-getaddrinfo.c | 2 +- gnulib/tests/test-sys_select.c | 5 +- gnulib/tests/test-vc-list-files-cvs.sh | 3 +- gnulib/tests/test-vc-list-files-git.sh | 3 +- gnulib/tests/test-wchar.c | 6 +- qemud/qemud.c | 2 +- src/remote_internal.c | 2 +- 59 files changed, 2191 insertions(+), 982 deletions(-) delete mode 100644 .gitignore delete mode 100644 gnulib/lib/.gitignore delete mode 100644 gnulib/lib/getaddrinfo.h delete mode 100644 gnulib/m4/eoverflow.m4 delete mode 100644 gnulib/tests/.gitignore delete mode 100644 gnulib/tests/dummy.c delete mode 100644 gnulib/tests/test-EOVERFLOW.c ... diff --git a/qemud/qemud.c b/qemud/qemud.c index 9da27d2..db1a107 100644 --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -47,11 +47,11 @@ #include <fnmatch.h> #include <grp.h> #include <signal.h> +#include <netdb.h> #include "internal.h" #include "qemud.h" -#include "getaddrinfo.h" #include "util.h" #include "remote_internal.h" #include "conf.h" diff --git a/src/remote_internal.c b/src/remote_internal.c index 35b7b4b..47a86f0 100644 --- a/src/remote_internal.c +++ b/src/remote_internal.c @@ -58,7 +58,7 @@ #endif #include <libxml/uri.h> -#include "getaddrinfo.h" +#include <netdb.h> /* AI_ADDRCONFIG is missing on some systems. */ #ifndef AI_ADDRCONFIG -- 1.6.0.2.588.g3102 >From a353993bd18f16ff049839b8ae72c835b04c05ab Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Wed, 22 Oct 2008 17:06:48 +0200 Subject: [PATCH 2/2] update .cvsignore files; regenerate .gitignore from them --- .cvsignore | 39 +++++++++++++++++++--------------- .gitignore | 37 +++++++++++++++++++++++++++++++++ gnulib/lib/.gitignore | 29 ++++++++++++++++++++++++++ gnulib/tests/.cvsignore | 49 ++++++++++++++++++++++--------------------- gnulib/tests/.gitignore | 52 +++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 165 insertions(+), 41 deletions(-) create mode 100644 .gitignore create mode 100644 gnulib/lib/.gitignore create mode 100644 gnulib/tests/.gitignore diff --git a/.cvsignore b/.cvsignore index eded526..ecb8bf0 100644 --- a/.cvsignore +++ b/.cvsignore @@ -1,32 +1,37 @@ +*.a +*.o +*.orig ...

2 1

[libvirt] Problem in running libvirt-cim test suite
by srinivas k 23 Oct '08

23 Oct '08

Hi, I trying to install libvirt-cim in my ubuntu-xen-3.2.1 machine. I am able to install all dependencies and libvirt-cim , but when I run cimtest which has given in libvirt.org, I am getting following error message * Starting test suite: libvirt-cim ERROR - Failed to create Virtual Network 'cimtest-networkpool' Unable to create network pool cimtest-networkpool Please check your environment.* Is there any special networking setup is require to run cimtest. Any help would be appreciated. Apologies if this topic has been covered already. I can't find it anywhere using Google Thanks, seenu.

2 1

[libvirt] image locking?
by Itamar Heim 22 Oct '08

22 Oct '08

Hi, I am interested to find out how libvirt envisions image locking. i.e., how do we make sure multiple nodes are not trying to access the same storage volume, probably causing image corruption. I know this can be solved by means of a cluster, but it seems excessive (and not possible in all scenarios). Central administration (ovirt-like) is also problematic, since unless fencing is assumed, it cannot verify the image is no longer being used. If the image/storage volume could be locked (or leased lock), either by the storage/LVM/NFS preventing from a node access to a specific image, or by having libvirt/qemu mutually check the lock before accessing it (very simply, in leased lock we can check every X minutes, and kill the process to make sure it honors the lock). Any thoughts on the subject? Thanks, Itamar

4 11

[libvirt] errors building rpm
by Ben Guthro 22 Oct '08

22 Oct '08

I keep getting the following error when trying to build via a 'sudo make rpm' on the tip of the tree + /usr/lib/rpm/find-lang.sh /var/tmp/libvirt-0.4.6-1.fc9-root libvirt No translations found for libvirt in /var/tmp/libvirt-0.4.6-1.fc9-root error: Bad exit status from /var/tmp/rpm-tmp.82848 (%install) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.82848 (%install) make: *** [rpm] Error 1 This looks like it came in with one of Jim Meyering's latest checkins. I'm wondering if I'm doing something wrong - or if I'm missing a build dependency that I did not need previously? Ben Guthro

5 6

[libvirt] [PATCH 00/12] Domain Events - Round 3
by Ben Guthro 21 Oct '08

21 Oct '08

The following patch series implements the Events API discussed here previously in this thread: http://www.redhat.com/archives/libvir-list/2008-September/msg00321.html http://www.redhat.com/archives/libvir-list/2008-October/msg00245.html and https://www.redhat.com/archives/libvir-list/2008-October/msg00432.html Once again, I have broken these into the following patches: events-01-public-api Changes to libvirt.h, and libvirt.c events-02-internal-api Changes to internal.h and event code events-03-qemud Changes to the daemon events-04-qemud-rpc-protocol Changes to the qemud rpc protocol events-05-driver.patch Changes to the driver API events-06-driver-qemu Changes to the qemu driver events-07-driver-remote Changes to the remote driver events-08-driver-lxc Minor changes to LXC driver structure to prevent compile errors events-09-driver-openvz Minor changes to openvz driver structure to prevent compile errors events-10-driver-test Minor changes to test driver structure to prevent compile errors events-11-example-testapp Test app, and infrastructure changes for an example dir events-12-python-ignore.patch Add functions to be ignored, for now Differences from last submission - Formatting issues brought up by Daniel V Some protocol simplifications General fixes suggested from last time around. Removal of POLLxxx stuff (this caused a bit of churn) I think I got them all, but please let me know if I missed something. Again, domain events are only emitted from qemu/kvm guests. Ben Guthro

1 0

[libvirt] [PATCH 0 of 2] Cgroup and LXC fixes
by Dan Smith 21 Oct '08

21 Oct '08

This set moves the cgroup creation before that of the container process, thus ensuring that it is put in the cgroup as well. As a result, I noticed that we need to allow device access to /dev/pts/*, and thus added a cgroup mechanism to allow a whole major device type. The LXC driver is made to allow major type 136 as a result. Note that this doesn't seem to do much to really restrict the container. While it does prevent them from opening devices other than what are allowed, the container can still mount (or access) the cgroup filesystem and move itself out of its own group and into the unrestricted root. Further, it can just add whitelist entries for the devices it wants to gain access. I tested code to restrict the devices in the per-driver cgroup, but that appears to have no effect, because from within the container, I can still add "b 8:* rwm" to my group's devices.allow and subsequently access SCSI disks. Even still, this patch set is crucial for proper cgroup membership of the container children.

3 9

[libvirt] [PATCH 3/5]: Set format type to LVM2 on NULL format
by Chris Lalancette 21 Oct '08

21 Oct '08

Again because of my generic VIR_ENUM_IMPL patch last week, I unwittingly caused a regression in the storage_backend_logical driver. Previously, if you submitted logical pool XML that had no <source><format type='lvm2'/> string, it would just default to VIR_STORAGE_POOL_LOGICAL_LVM2. This would succeed just fine and go on with life. This is no longer the case, and now XML without the format tag fails to define. To maintain backwards compatibility with already existing XML that expects this, add a compatibility wrapper to return VIR_STORAGE_POOL_LOGICAL_LVM2 on an empty format tag. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH 4/5]: Make dumpXML more idempotent with defineXML
by Chris Lalancette 21 Oct '08

21 Oct '08

Currently, you can define a logical storage pool with something like the following: <pool type='logical'> <source> <name>MyVG</name> <device name='/dev/sdb'/> ... However, dumping out the XML for this same storage pool (with, say, virsh pool-dumpxml), gives: <pool type='logical'> <source> <name>MyVG</name> <device name='/dev/sdb'> </device> To make this more idempotent, do the <device name='/dev/sdb'/> form by default, and only do the <device>...</device> form if .nfreeExtent is defined for the storage pool. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH 2/5]: Properly set errors on unknown format types
by Chris Lalancette 21 Oct '08

21 Oct '08

Because of my patch last week that converted the various virStorage*FromString and virStorage*ToString implementations to the generic VIR_ENUM_IMPL, there were a couple of places that didn't properly set errors when they failed. This patch fixes these places up. It also adds an additional check in virEnumFromString(), so that if a NULL type is passed in, it fails instead of SEGV'ing. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH 1/5]: Shore up virGetLastError handling
by Chris Lalancette 21 Oct '08

21 Oct '08

While doing testing on this patch series, I mistakenly added a bogus piece of storage XML to libvirtd, which was saved in /etc/libvirt/storage. On subsequent stop/start of libvirtd, because of another bug (fixed in a later patch), an error wasn't being set properly in an error path, so libvirtd was SEGV'ing in storage_conf.c:virStoragePoolObjLoad when trying to dereference the NULL err returned from virGetLastError(). Make this more robust against errors by always doing "err ? err->message : NULL" in the printf. I looked around the tree and found a couple of other places that weren't guarded, so this patch fixes them as well. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 2

[libvirt] [PATCH] minor usb masstorage hotadd cleanup
by Guido Günther 21 Oct '08

21 Oct '08

Hi, this just brings qemudDomainAttachUsbMassstorageDevice in line with the rest of the code: * don't allow to add the same target device name more than once * escape paths for qemu's monitor command Cheers, -- Guido

2 2

[libvirt] [PATCH 00/12] Domain Events - Round 2
by Ben Guthro 21 Oct '08

21 Oct '08

The following patch series implements the Events API discussed here previously in this thread: http://www.redhat.com/archives/libvir-list/2008-September/msg00321.html and http://www.redhat.com/archives/libvir-list/2008-October/msg00245.html By Daniel B's advice - I have broken this patch into the following: events-01-public-api Changes to libvirt.h, and libvirt.c events-02-internal-api Changes to internal.h and event code events-03-qemud Changes to the daemon events-04-qemud-rpc-protocol Changes to the qemud rpc protocol events-05-driver.patch Changes to the driver API events-06-driver-qemu Changes to the qemu driver events-07-driver-remote Changes to the remote driver events-08-driver-lxc Minor changes to LXC driver structure to prevent compile errors events-09-driver-openvz Minor changes to openvz driver structure to prevent compile errors events-10-driver-test Minor changes to test driver structure to prevent compile errors events-11-example-testapp Test app, and infrastructure changes for an example dir events-12-python-ignore.patch Add functions to be ignored, for now For now, domain events are only emitted from qemu/kvm guests.

5 31

[libvirt] [PATCH 5/5]: Export <device> when doing logical pool discovery
by Chris Lalancette 21 Oct '08

21 Oct '08

When doing logical pool discovery, it currently returns XML like: <sources><source><name>myvg</name></source></sources> However, for oVirt, we need to know the device name that corresponds to this logical volume group as well. Therefore, extend the virStorageBackendLogicalFindPoolSources function to return this information as well. This required pretty much a complete rewrite of the discovery function, since I needed to be able to add <device> sections to already existing XML nodes. For that reason, this code uses direct libxml2 tree API's to handle the parsing and the adding of nodes where necessary. Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

2 1

[libvirt] [PATCH 0/5]: Logical backend fixes and cleanups
by Chris Lalancette 21 Oct '08

21 Oct '08

All, This series of 5 patches fixes a couple of issues with the logical backend implementation, and also extends the xml returned by find-storage-pool-sources-as logical to also return the <device>'s that a logical backend is made of. Patches 1 - 4 do the cleanup, while patch 5 implements the <device> addition to the find-storage-pool-sources. -- Chris Lalancette

1 0

[libvirt] FYI; warning while compiling lxc_driver.c
by Chris Lalancette 21 Oct '08

21 Oct '08

Just wanted to give a heads up that the LXC driver spits a warning when compiling on i686; the exact warning is: gcc -DHAVE_CONFIG_H -I. -I.. -I../gnulib/lib -I../gnulib/lib -I../include -I../include -I../qemud -I/usr/include/libxml2 -DBINDIR=\"/usr/libexec\" -DSBINDIR=\"/usr/sbin\" -DSYSCONF_DIR=\"/etc\" -DLOCALEBASEDIR=\"/usr/share/locale\" -DLOCAL_STATE_DIR=\"/var\" -DGETTEXT_PACKAGE=\"libvirt\" -Wall -Wformat -Wformat-security -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wextra -Wshadow -Wcast-align -Wwrite-strings -Waggregate-return -Wstrict-prototypes -Winline -Wredundant-decls -Wno-sign-compare -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fasynchronous-unwind-tables -DWITH_OPENVZ -DWITH_LXC -DWITH_QEMU -DWITH_TEST -DWITH_REMOTE -DWITH_LIBVIRTD -DWITH_XEN -DIN_LIBVIRT -g -O2 -MT libvirt_la-lxc_driver.lo -MD -MP -MF .deps/libvirt_la-lxc_driver.Tpo -c lxc_driver.c -fPIC -DPIC -o .libs/libvirt_la-lxc_driver.o lxc_driver.c: In function 'lxcGetSchedulerParameters': lxc_driver.c:1211: warning: dereferencing type-punned pointer will break strict-aliasing rules Generally I would go and fix such things, but I didn't spend any time to look at the code, and I don't have an LXC environment handy to test on, so I didn't want to break anything. I just thought I would point it out. -- Chris Lalancette

1 0

[libvirt] PATCH 0/4: Openvz bridge support & related patches
by Daniel P. Berrange 21 Oct '08

21 Oct '08

This patch series is derived from Anton Protopopov /Evgeniy Sokolov bridge device patches. It first does some generic refactoring of MAC address handler in all drivers, then adds code to extract openvz version number, then does network config, and finally does filesystem config. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

4 18

[libvirt] Question about supporting other hypervisor
by Atsushi SAKAI 21 Oct '08

21 Oct '08

Hello, I have a simple question raised yesterday. CIM(Common Information Model) is a kind of good I/F (to support VMware, Hyper-V and other platform). As a CIM Provider, libvirt-cim is going on. But for CIM Client, Is not going on. Is there any reason for not supporting CIM on libvirt driver layer? I am thinking about cim-xml driver (like remote driver) in libvirt. Ref. http://www.dmtf.org/standards/wbem http://en.wikipedia.org/wiki/Web-Based_Enterprise_Management Thanks Atsushi SAKAI

4 7

[libvirt] PATCH: Pass 'remote_error' object to RPC handlers
by Daniel P. Berrange 20 Oct '08

20 Oct '08

In the libvirtd daemon, remote.c file the current RPC handlers have a return value contract saying 0 - success -1 - failure in libvirt call, no error returned -2 - failure in dispatch process, error already serialized & sent While this isn't a problem for the code as it stands today, for the thread support I want to be able to avoid the dispatch handlers having to touch the 'struct qemud_client' object in normal usage. Allowing the RPC handlers to directly serialize & send the error makes this impossible because it requires access to the client object. So this patch changes the way the RPC handlers deal with errors. The RPC handler API changes from typedef int (*dispatch_fn) (struct qemud_server *server, struct qemud_client *client, dispatch_args *args, dispatch_ret *ret); To typedef int (*dispatch_fn) (struct qemud_server *server, struct qemud_client *client, remote_error *err, dispatch_args *args, dispatch_ret *ret); Note, the addition of a 'remote_error *err' argument. Whenever an error occurs during the dispatch process, the RPC handler must populate this 'remote_error *err' object with the error details. This rule applies whether its a libvirt error, or a dispatch process error, so there is no longer any need to have separate -1 or -2 return values, a simple -1 or 0 return value suffices. qemud/qemud.c | 12 qemud/qemud.h | 5 qemud/remote.c | 1450 +++++++++++++++++++------------------ qemud/remote_dispatch_prototypes.h | 208 ++--- qemud/remote_generate_stubs.pl | 2 src/domain_conf.c | 8 6 files changed, 896 insertions(+), 789 deletions(-) This is a rather ugly / unreadable patch I'm afraid - its worth also looking at the complete before & after code to understand it better. Daniel diff --git a/qemud/qemud.c b/qemud/qemud.c --- a/qemud/qemud.c +++ b/qemud/qemud.c @@ -1324,13 +1324,12 @@ static int qemudClientRead(struct qemud_ static void qemudDispatchClientRead(struct qemud_server *server, struct qemud_client *client) { - + unsigned int len; /*qemudDebug ("qemudDispatchClientRead: mode = %d", client->mode);*/ switch (client->mode) { case QEMUD_MODE_RX_HEADER: { XDR x; - unsigned int len; if (qemudClientRead(server, client) < 0) return; /* Error, or blocking */ @@ -1381,7 +1380,14 @@ static void qemudDispatchClientRead(stru if (client->bufferOffset < client->bufferLength) return; /* Not read enough */ - remoteDispatchClientRequest (server, client); + if ((len = remoteDispatchClientRequest (server, client)) == 0) + qemudDispatchClientFailure(server, client); + + /* Set up the output buffer. */ + client->mode = QEMUD_MODE_TX_PACKET; + client->bufferLength = len; + client->bufferOffset = 0; + if (qemudRegisterClientEvent(server, client, 1) < 0) qemudDispatchClientFailure(server, client); diff --git a/qemud/qemud.h b/qemud/qemud.h --- a/qemud/qemud.h +++ b/qemud/qemud.h @@ -174,8 +174,9 @@ void qemudLog(int priority, const char * #define qemudDebug(fmt, ...) do {} while(0) #endif -void remoteDispatchClientRequest (struct qemud_server *server, - struct qemud_client *client); +unsigned int +remoteDispatchClientRequest (struct qemud_server *server, + struct qemud_client *client); #if HAVE_POLKIT int qemudGetSocketIdentity(int fd, uid_t *uid, pid_t *pid); diff --git a/qemud/remote.c b/qemud/remote.c --- a/qemud/remote.c +++ b/qemud/remote.c @@ -54,10 +54,9 @@ #define REMOTE_DEBUG(fmt,...) qemudDebug("REMOTE: " fmt, __VA_ARGS__) -static void remoteDispatchError (struct qemud_client *client, - remote_message_header *req, - const char *fmt, ...) - ATTRIBUTE_FORMAT(printf, 3, 4); +static void remoteDispatchFormatError (remote_error *rerr, + const char *fmt, ...) + ATTRIBUTE_FORMAT(printf, 2, 3); static virDomainPtr get_nonnull_domain (virConnectPtr conn, remote_nonnull_domain domain); static virNetworkPtr get_nonnull_network (virConnectPtr conn, remote_nonnull_network network); static virStoragePoolPtr get_nonnull_storage_pool (virConnectPtr conn, remote_nonnull_storage_pool pool); @@ -80,7 +79,7 @@ typedef union { typedef int (*dispatch_fn) (struct qemud_server *server, struct qemud_client *client, - remote_message_header *req, + remote_error *err, dispatch_args *args, dispatch_ret *ret); @@ -94,59 +93,151 @@ static const dispatch_data const dispatc #include "remote_dispatch_table.h" }; + +/* Convert a libvirt virError object into wire format */ +static void +remoteDispatchCopyError (remote_error *rerr, + virErrorPtr verr) +{ + rerr->code = verr->code; + rerr->domain = verr->domain; + rerr->message = verr->message ? malloc(sizeof(char*)) : NULL; + if (rerr->message) *rerr->message = strdup(verr->message); + rerr->level = verr->level; + rerr->str1 = verr->str1 ? malloc(sizeof(char*)) : NULL; + if (rerr->str1) *rerr->str1 = strdup(verr->str1); + rerr->str2 = verr->str2 ? malloc(sizeof(char*)) : NULL; + if (rerr->str2) *rerr->str2 = strdup(verr->str2); + rerr->str3 = verr->str3 ? malloc(sizeof(char*)) : NULL; + if (rerr->str3) *rerr->str3 = strdup(verr->str3); + rerr->int1 = verr->int1; + rerr->int2 = verr->int2; +} + + +/* A set of helpers for sending back errors to client + in various ways .... */ + +static void +remoteDispatchStringError (remote_error *rerr, + int code, const char *msg) +{ + virError verr; + + memset(&verr, 0, sizeof verr); + + /* Construct the dummy libvirt virError. */ + verr.code = code; + verr.domain = VIR_FROM_REMOTE; + verr.message = (char *)msg; + verr.level = VIR_ERR_ERROR; + verr.str1 = (char *)msg; + + remoteDispatchCopyError(rerr, &verr); +} + +static void +remoteDispatchAuthError (remote_error *rerr) +{ + remoteDispatchStringError (rerr, VIR_ERR_AUTH_FAILED, "authentication failed"); +} + +static void +remoteDispatchFormatError (remote_error *rerr, + const char *fmt, ...) +{ + va_list args; + char msgbuf[1024]; + char *msg = msgbuf; + + va_start (args, fmt); + vsnprintf (msgbuf, sizeof msgbuf, fmt, args); + va_end (args); + + remoteDispatchStringError (rerr, VIR_ERR_RPC, msg); +} + +static void +remoteDispatchGenericError (remote_error *rerr) +{ + remoteDispatchStringError(rerr, + VIR_ERR_INTERNAL_ERROR, + "library function returned error but did not set virterror"); +} + +static void +remoteDispatchOOMError (remote_error *rerr) +{ + remoteDispatchStringError(rerr, + VIR_ERR_NO_MEMORY, + NULL); +} + +static void +remoteDispatchConnError (remote_error *rerr, + virConnectPtr conn) +{ + virErrorPtr verr; + + if (conn) + verr = virConnGetLastError(conn); + else + verr = virGetLastError(); + if (verr) + remoteDispatchCopyError(rerr, verr); + else + remoteDispatchGenericError(rerr); +} + + /* This function gets called from qemud when it detects an incoming * remote protocol message. At this point, client->buffer contains * the full call message (including length word which we skip). */ -void +unsigned int remoteDispatchClientRequest (struct qemud_server *server, struct qemud_client *client) { XDR xdr; remote_message_header req, rep; + remote_error rerr; dispatch_args args; dispatch_ret ret; const dispatch_data *data = NULL; - int rv, len; + int rv = -1, len; memset(&args, 0, sizeof args); memset(&ret, 0, sizeof ret); + memset(&rerr, 0, sizeof rerr); /* Parse the header. */ xdrmem_create (&xdr, client->buffer, client->bufferLength, XDR_DECODE); - if (!xdr_remote_message_header (&xdr, &req)) { - remoteDispatchError (client, NULL, "%s", _("xdr_remote_message_header")); - xdr_destroy (&xdr); - return; - } + if (!xdr_remote_message_header (&xdr, &req)) + goto fatal_error; /* Check version, etc. */ if (req.prog != REMOTE_PROGRAM) { - remoteDispatchError (client, &req, - _("program mismatch (actual %x, expected %x)"), - req.prog, REMOTE_PROGRAM); - xdr_destroy (&xdr); - return; + remoteDispatchFormatError (&rerr, + _("program mismatch (actual %x, expected %x)"), + req.prog, REMOTE_PROGRAM); + goto rpc_error; } if (req.vers != REMOTE_PROTOCOL_VERSION) { - remoteDispatchError (client, &req, - _("version mismatch (actual %x, expected %x)"), - req.vers, REMOTE_PROTOCOL_VERSION); - xdr_destroy (&xdr); - return; + remoteDispatchFormatError (&rerr, + _("version mismatch (actual %x, expected %x)"), + req.vers, REMOTE_PROTOCOL_VERSION); + goto rpc_error; } if (req.direction != REMOTE_CALL) { - remoteDispatchError (client, &req, _("direction (%d) != REMOTE_CALL"), - (int) req.direction); - xdr_destroy (&xdr); - return; + remoteDispatchFormatError (&rerr, _("direction (%d) != REMOTE_CALL"), + (int) req.direction); + goto rpc_error; } if (req.status != REMOTE_OK) { - remoteDispatchError (client, &req, _("status (%d) != REMOTE_OK"), - (int) req.status); - xdr_destroy (&xdr); - return; + remoteDispatchFormatError (&rerr, _("status (%d) != REMOTE_OK"), + (int) req.status); + goto rpc_error; } /* If client is marked as needing auth, don't allow any RPC ops, @@ -159,47 +250,35 @@ remoteDispatchClientRequest (struct qemu req.proc != REMOTE_PROC_AUTH_SASL_STEP && req.proc != REMOTE_PROC_AUTH_POLKIT ) { - remoteDispatchError (client, &req, "%s", _("authentication required")); - xdr_destroy (&xdr); - return; + /* Explicitly *NOT* calling remoteDispatchAuthError() because + we want back-compatability with libvirt clients which don't + support the VIR_ERR_AUTH_FAILED error code */ + remoteDispatchFormatError (&rerr, "%s", _("authentication required")); + goto rpc_error; } } if (req.proc >= ARRAY_CARDINALITY(dispatch_table) || dispatch_table[req.proc].fn == NULL) { - remoteDispatchError (client, &req, _("unknown procedure: %d"), - req.proc); - xdr_destroy (&xdr); - return; + remoteDispatchFormatError (&rerr, _("unknown procedure: %d"), + req.proc); + goto rpc_error; } data = &(dispatch_table[req.proc]); /* De-serialize args off the wire */ if (!((data->args_filter)(&xdr, &args))) { - remoteDispatchError (client, &req, "%s", _("parse args failed")); - xdr_destroy (&xdr); + remoteDispatchFormatError (&rerr, "%s", _("parse args failed")); + goto rpc_error; } - xdr_destroy (&xdr); - /* Call function. */ - rv = (data->fn)(server, client, &req, &args, &ret); + rv = (data->fn)(server, client, &rerr, &args, &ret); xdr_free (data->args_filter, (char*)&args); - /* Dispatch function must return -2, -1 or 0. Anything else is - * an internal error. - */ - if (rv < -2 || rv > 0) { - remoteDispatchError (client, &req, - _("internal error - dispatch function returned invalid code %d"), rv); - return; - } - - /* Dispatch error? If so then the function has already set up the - * return buffer, so just return immediately. - */ - if (rv == -2) return; +rpc_error: + xdr_destroy (&xdr); /* Return header. */ rep.prog = req.prog; @@ -207,226 +286,61 @@ remoteDispatchClientRequest (struct qemu rep.proc = req.proc; rep.direction = REMOTE_REPLY; rep.serial = req.serial; - rep.status = rv == 0 ? REMOTE_OK : REMOTE_ERROR; + rep.status = rv < 0 ? REMOTE_ERROR : REMOTE_OK; /* Serialise the return header. */ xdrmem_create (&xdr, client->buffer, sizeof client->buffer, XDR_ENCODE); len = 0; /* We'll come back and write this later. */ if (!xdr_int (&xdr, &len)) { - remoteDispatchError (client, &req, "%s", _("dummy length")); - xdr_destroy (&xdr); if (rv == 0) xdr_free (data->ret_filter, (char*)&ret); - return; + goto fatal_error; } if (!xdr_remote_message_header (&xdr, &rep)) { - remoteDispatchError (client, &req, "%s", _("serialise reply header")); - xdr_destroy (&xdr); if (rv == 0) xdr_free (data->ret_filter, (char*)&ret); - return; + goto fatal_error; } /* If OK, serialise return structure, if error serialise error. */ - if (rv == 0) { - if (!((data->ret_filter) (&xdr, &ret))) { - remoteDispatchError (client, &req, "%s", _("serialise return struct")); - xdr_destroy (&xdr); - return; - } + if (rv >= 0) { + if (!((data->ret_filter) (&xdr, &ret))) + goto fatal_error; xdr_free (data->ret_filter, (char*)&ret); } else /* error */ { - virErrorPtr verr; - remote_error error; - remote_nonnull_domain dom; - remote_nonnull_network net; - - verr = client->conn - ? virConnGetLastError (client->conn) - : virGetLastError (); - - if (verr) { - error.code = verr->code; - error.domain = verr->domain; - error.message = verr->message ? &verr->message : NULL; - error.level = verr->level; - if (verr->dom) { - dom.name = verr->dom->name; - memcpy (dom.uuid, verr->dom->uuid, VIR_UUID_BUFLEN); - dom.id = verr->dom->id; - } - error.dom = verr->dom ? &dom : NULL; - error.str1 = verr->str1 ? &verr->str1 : NULL; - error.str2 = verr->str2 ? &verr->str2 : NULL; - error.str3 = verr->str3 ? &verr->str3 : NULL; - error.int1 = verr->int1; - error.int2 = verr->int2; - if (verr->net) { - net.name = verr->net->name; - memcpy (net.uuid, verr->net->uuid, VIR_UUID_BUFLEN); - } - error.net = verr->net ? &net : NULL; - } else { - /* Error was NULL so synthesize an error. */ - char msgbuf[] = "remoteDispatchClientRequest: internal error: library function returned error but did not set virterror"; - char *msg = msgbuf; - - error.code = VIR_ERR_RPC; - error.domain = VIR_FROM_REMOTE; - error.message = &msg; - error.level = VIR_ERR_ERROR; - error.dom = NULL; - error.str1 = &msg; - error.str2 = NULL; - error.str3 = NULL; - error.int1 = 0; - error.int2 = 0; - error.net = NULL; - } - - if (!xdr_remote_error (&xdr, &error)) { - remoteDispatchError (client, &req, "%s", _("serialise return error")); - xdr_destroy (&xdr); - return; - } + /* Error was NULL so synthesize an error. */ + if (rerr.code == 0) + remoteDispatchGenericError(&rerr); + if (!xdr_remote_error (&xdr, &rerr)) + goto fatal_error; } /* Write the length word. */ len = xdr_getpos (&xdr); - if (xdr_setpos (&xdr, 0) == 0) { - remoteDispatchError (client, &req, "%s", _("xdr_setpos")); - xdr_destroy (&xdr); - return; - } + if (xdr_setpos (&xdr, 0) == 0) + goto fatal_error; - if (!xdr_int (&xdr, &len)) { - remoteDispatchError (client, &req, "%s", _("serialise return length")); - xdr_destroy (&xdr); - return; - } + if (!xdr_int (&xdr, &len)) + goto fatal_error; xdr_destroy (&xdr); - /* Set up the output buffer. */ - client->mode = QEMUD_MODE_TX_PACKET; - client->bufferLength = len; - client->bufferOffset = 0; + return len; + +fatal_error: + /* Seriously bad stuff happened, so we'll kill off this client + and not send back any RPC error */ + xdr_destroy (&xdr); + return 0; } - -/* An error occurred during the dispatching process itself (ie. not - * an error from the function being called). We return an error - * reply. - */ -static void -remoteDispatchSendError (struct qemud_client *client, - remote_message_header *req, - int code, const char *msg) -{ - remote_message_header rep; - remote_error error; - XDR xdr; - int len; - - /* Future versions of the protocol may use different vers or prog. Try - * our hardest to send back a message that such clients could see. - */ - if (req) { - rep.prog = req->prog; - rep.vers = req->vers; - rep.proc = req->proc; - rep.direction = REMOTE_REPLY; - rep.serial = req->serial; - rep.status = REMOTE_ERROR; - } else { - rep.prog = REMOTE_PROGRAM; - rep.vers = REMOTE_PROTOCOL_VERSION; - rep.proc = REMOTE_PROC_OPEN; - rep.direction = REMOTE_REPLY; - rep.serial = 1; - rep.status = REMOTE_ERROR; - } - - /* Construct the error. */ - error.code = code; - error.domain = VIR_FROM_REMOTE; - error.message = (char**)&msg; - error.level = VIR_ERR_ERROR; - error.dom = NULL; - error.str1 = (char**)&msg; - error.str2 = NULL; - error.str3 = NULL; - error.int1 = 0; - error.int2 = 0; - error.net = NULL; - - /* Serialise the return header and error. */ - xdrmem_create (&xdr, client->buffer, sizeof client->buffer, XDR_ENCODE); - - len = 0; /* We'll come back and write this later. */ - if (!xdr_int (&xdr, &len)) { - xdr_destroy (&xdr); - return; - } - - if (!xdr_remote_message_header (&xdr, &rep)) { - xdr_destroy (&xdr); - return; - } - - if (!xdr_remote_error (&xdr, &error)) { - xdr_destroy (&xdr); - return; - } - - len = xdr_getpos (&xdr); - if (xdr_setpos (&xdr, 0) == 0) { - xdr_destroy (&xdr); - return; - } - - if (!xdr_int (&xdr, &len)) { - xdr_destroy (&xdr); - return; - } - - xdr_destroy (&xdr); - - /* Send it. */ - client->mode = QEMUD_MODE_TX_PACKET; - client->bufferLength = len; - client->bufferOffset = 0; -} - -static void -remoteDispatchFailAuth (struct qemud_client *client, - remote_message_header *req) -{ - remoteDispatchSendError (client, req, VIR_ERR_AUTH_FAILED, "authentication failed"); -} - -static void -remoteDispatchError (struct qemud_client *client, - remote_message_header *req, - const char *fmt, ...) -{ - va_list args; - char msgbuf[1024]; - char *msg = msgbuf; - - va_start (args, fmt); - vsnprintf (msgbuf, sizeof msgbuf, fmt, args); - va_end (args); - - remoteDispatchSendError (client, req, VIR_ERR_RPC, msg); -} - /*----- Functions. -----*/ static int remoteDispatchOpen (struct qemud_server *server ATTRIBUTE_UNUSED, - struct qemud_client *client, remote_message_header *req, + struct qemud_client *client, + remote_error *rerr, struct remote_open_args *args, void *ret ATTRIBUTE_UNUSED) { const char *name; @@ -434,8 +348,8 @@ remoteDispatchOpen (struct qemud_server /* Already opened? */ if (client->conn) { - remoteDispatchError (client, req, "%s", _("connection already open")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("connection already open")); + return -1; } name = args->name ? *args->name : NULL; @@ -451,60 +365,77 @@ remoteDispatchOpen (struct qemud_server ? virConnectOpenReadOnly (name) : virConnectOpen (name); - return client->conn ? 0 : -1; + if (client->conn == NULL) { + remoteDispatchConnError(rerr, NULL); + return -1; + } + + return 0; } #define CHECK_CONN(client) \ if (!client->conn) { \ - remoteDispatchError (client, req, "%s", _("connection not open")); \ - return -2; \ + remoteDispatchFormatError (rerr, "%s", _("connection not open")); \ + return -1; \ } static int remoteDispatchClose (struct qemud_server *server ATTRIBUTE_UNUSED, - struct qemud_client *client, remote_message_header *req, + struct qemud_client *client, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, void *ret ATTRIBUTE_UNUSED) { - int rv; CHECK_CONN(client); - rv = virConnectClose (client->conn); - if (rv == 0) client->conn = NULL; + if (virConnectClose (client->conn) < 0) { + remoteDispatchConnError(rerr, NULL); + return -1; + } - return rv; + client->conn = NULL; + + return 0; } static int remoteDispatchSupportsFeature (struct qemud_server *server ATTRIBUTE_UNUSED, - struct qemud_client *client, remote_message_header *req, + struct qemud_client *client, + remote_error *rerr, remote_supports_feature_args *args, remote_supports_feature_ret *ret) { CHECK_CONN(client); ret->supported = __virDrvSupportsFeature (client->conn, args->feature); - if (ret->supported == -1) return -1; + if (ret->supported == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } static int remoteDispatchGetType (struct qemud_server *server ATTRIBUTE_UNUSED, - struct qemud_client *client, remote_message_header *req, + struct qemud_client *client, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_get_type_ret *ret) { const char *type; CHECK_CONN(client); type = virConnectGetType (client->conn); - if (type == NULL) return -1; + if (type == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } /* We have to strdup because remoteDispatchClientRequest will * free this string after it's been serialised. */ ret->type = strdup (type); if (!ret->type) { - remoteDispatchError (client, req, "%s", _("out of memory in strdup")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("out of memory in strdup")); + return -1; } return 0; @@ -513,15 +444,17 @@ static int static int remoteDispatchGetVersion (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_get_version_ret *ret) { unsigned long hvVer; CHECK_CONN(client); - if (virConnectGetVersion (client->conn, &hvVer) == -1) + if (virConnectGetVersion (client->conn, &hvVer) == -1) { + remoteDispatchConnError(rerr, client->conn); return -1; + } ret->hv_ver = hvVer; return 0; @@ -530,7 +463,7 @@ static int static int remoteDispatchGetHostname (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_get_hostname_ret *ret) { @@ -538,7 +471,10 @@ remoteDispatchGetHostname (struct qemud_ CHECK_CONN(client); hostname = virConnectGetHostname (client->conn); - if (hostname == NULL) return -1; + if (hostname == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } ret->hostname = hostname; return 0; @@ -547,7 +483,7 @@ static int static int remoteDispatchGetMaxVcpus (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_get_max_vcpus_args *args, remote_get_max_vcpus_ret *ret) { @@ -556,7 +492,10 @@ remoteDispatchGetMaxVcpus (struct qemud_ type = args->type ? *args->type : NULL; ret->max_vcpus = virConnectGetMaxVcpus (client->conn, type); - if (ret->max_vcpus == -1) return -1; + if (ret->max_vcpus == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -564,15 +503,17 @@ static int static int remoteDispatchNodeGetInfo (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_node_get_info_ret *ret) { virNodeInfo info; CHECK_CONN(client); - if (virNodeGetInfo (client->conn, &info) == -1) + if (virNodeGetInfo (client->conn, &info) == -1) { + remoteDispatchConnError(rerr, client->conn); return -1; + } memcpy (ret->model, info.model, sizeof ret->model); ret->memory = info.memory; @@ -589,7 +530,7 @@ static int static int remoteDispatchGetCapabilities (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_get_capabilities_ret *ret) { @@ -597,7 +538,10 @@ remoteDispatchGetCapabilities (struct qe CHECK_CONN(client); caps = virConnectGetCapabilities (client->conn); - if (caps == NULL) return -1; + if (caps == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } ret->capabilities = caps; return 0; @@ -606,22 +550,22 @@ static int static int remoteDispatchNodeGetCellsFreeMemory (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_node_get_cells_free_memory_args *args, remote_node_get_cells_free_memory_ret *ret) { CHECK_CONN(client); if (args->maxCells > REMOTE_NODE_MAX_CELLS) { - remoteDispatchError (client, req, - "%s", _("maxCells > REMOTE_NODE_MAX_CELLS")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxCells > REMOTE_NODE_MAX_CELLS")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->freeMems.freeMems_val, args->maxCells) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->freeMems.freeMems_len = virNodeGetCellsFreeMemory(client->conn, @@ -630,6 +574,7 @@ remoteDispatchNodeGetCellsFreeMemory (st args->maxCells); if (ret->freeMems.freeMems_len == 0) { VIR_FREE(ret->freeMems.freeMems_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -640,7 +585,7 @@ static int static int remoteDispatchNodeGetFreeMemory (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_node_get_free_memory_ret *ret) { @@ -648,8 +593,10 @@ remoteDispatchNodeGetFreeMemory (struct CHECK_CONN(client); freeMem = virNodeGetFreeMemory(client->conn); - if (freeMem == 0) return -1; - + if (freeMem == 0) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } ret->freeMem = freeMem; return 0; } @@ -658,7 +605,7 @@ static int static int remoteDispatchDomainGetSchedulerType (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_scheduler_type_args *args, remote_domain_get_scheduler_type_ret *ret) { @@ -669,13 +616,14 @@ remoteDispatchDomainGetSchedulerType (st dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } type = virDomainGetSchedulerType (dom, &nparams); if (type == NULL) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -688,7 +636,7 @@ static int static int remoteDispatchDomainGetSchedulerParameters (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_scheduler_parameters_args *args, remote_domain_get_scheduler_parameters_ret *ret) { @@ -700,25 +648,26 @@ remoteDispatchDomainGetSchedulerParamete nparams = args->nparams; if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) { - remoteDispatchError (client, req, "%s", _("nparams too large")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("nparams too large")); + return -1; } if (VIR_ALLOC_N(params, nparams) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { VIR_FREE(params); - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } r = virDomainGetSchedulerParameters (dom, params, &nparams); if (r == -1) { virDomainFree(dom); VIR_FREE(params); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -748,7 +697,7 @@ remoteDispatchDomainGetSchedulerParamete case VIR_DOMAIN_SCHED_FIELD_BOOLEAN: ret->params.params_val[i].value.remote_sched_param_value_u.b = params[i].value.b; break; default: - remoteDispatchError (client, req, "%s", _("unknown type")); + remoteDispatchFormatError (rerr, "%s", _("unknown type")); goto cleanup; } } @@ -758,19 +707,19 @@ remoteDispatchDomainGetSchedulerParamete return 0; oom: - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); + remoteDispatchOOMError(rerr); cleanup: virDomainFree(dom); for (i = 0 ; i < nparams ; i++) VIR_FREE(ret->params.params_val[i].field); VIR_FREE(params); - return -2; + return -1; } static int remoteDispatchDomainSetSchedulerParameters (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_set_scheduler_parameters_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -782,12 +731,12 @@ remoteDispatchDomainSetSchedulerParamete nparams = args->params.params_len; if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) { - remoteDispatchError (client, req, "%s", _("nparams too large")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("nparams too large")); + return -1; } if (VIR_ALLOC_N(params, nparams)) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } /* Deserialise parameters. */ @@ -815,14 +764,17 @@ remoteDispatchDomainSetSchedulerParamete dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { VIR_FREE(params); - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } r = virDomainSetSchedulerParameters (dom, params, nparams); virDomainFree(dom); VIR_FREE(params); - if (r == -1) return -1; + if (r == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -830,7 +782,7 @@ static int static int remoteDispatchDomainBlockStats (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_block_stats_args *args, remote_domain_block_stats_ret *ret) { @@ -841,13 +793,14 @@ remoteDispatchDomainBlockStats (struct q dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } path = args->path; if (virDomainBlockStats (dom, path, &stats, sizeof stats) == -1) { virDomainFree (dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree (dom); @@ -864,7 +817,7 @@ static int static int remoteDispatchDomainInterfaceStats (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_interface_stats_args *args, remote_domain_interface_stats_ret *ret) { @@ -875,13 +828,14 @@ remoteDispatchDomainInterfaceStats (stru dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } path = args->path; if (virDomainInterfaceStats (dom, path, &stats, sizeof stats) == -1) { virDomainFree (dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree (dom); @@ -901,7 +855,7 @@ static int static int remoteDispatchDomainBlockPeek (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_block_peek_args *args, remote_domain_block_peek_ret *ret) { @@ -914,8 +868,8 @@ remoteDispatchDomainBlockPeek (struct qe dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } path = args->path; offset = args->offset; @@ -924,22 +878,23 @@ remoteDispatchDomainBlockPeek (struct qe if (size > REMOTE_DOMAIN_BLOCK_PEEK_BUFFER_MAX) { virDomainFree (dom); - remoteDispatchError (client, req, - "%s", _("size > maximum buffer size")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("size > maximum buffer size")); + return -1; } ret->buffer.buffer_len = size; if (VIR_ALLOC_N(ret->buffer.buffer_val, size) < 0) { virDomainFree (dom); - remoteDispatchError (client, req, "%s", strerror (errno)); - return -2; + remoteDispatchFormatError (rerr, "%s", strerror (errno)); + return -1; } if (virDomainBlockPeek (dom, path, offset, size, ret->buffer.buffer_val, flags) == -1) { /* free (ret->buffer.buffer_val); - caller frees */ virDomainFree (dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree (dom); @@ -950,7 +905,7 @@ static int static int remoteDispatchDomainMemoryPeek (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_memory_peek_args *args, remote_domain_memory_peek_ret *ret) { @@ -962,31 +917,32 @@ remoteDispatchDomainMemoryPeek (struct q dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } offset = args->offset; size = args->size; flags = args->flags; if (size > REMOTE_DOMAIN_MEMORY_PEEK_BUFFER_MAX) { - remoteDispatchError (client, req, - "%s", _("size > maximum buffer size")); + remoteDispatchFormatError (rerr, + "%s", _("size > maximum buffer size")); virDomainFree (dom); - return -2; + return -1; } ret->buffer.buffer_len = size; if (VIR_ALLOC_N (ret->buffer.buffer_val, size) < 0) { - remoteDispatchError (client, req, "%s", strerror (errno)); + remoteDispatchFormatError (rerr, "%s", strerror (errno)); virDomainFree (dom); - return -2; + return -1; } if (virDomainMemoryPeek (dom, offset, size, ret->buffer.buffer_val, flags) == -1) { /* free (ret->buffer.buffer_val); - caller frees */ virDomainFree (dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree (dom); @@ -997,7 +953,7 @@ static int static int remoteDispatchDomainAttachDevice (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_attach_device_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1006,12 +962,13 @@ remoteDispatchDomainAttachDevice (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainAttachDevice (dom, args->xml) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1021,7 +978,7 @@ static int static int remoteDispatchDomainCreate (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_create_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1030,12 +987,13 @@ remoteDispatchDomainCreate (struct qemud dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainCreate (dom) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1045,7 +1003,7 @@ static int static int remoteDispatchDomainCreateXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_create_xml_args *args, remote_domain_create_xml_ret *ret) { @@ -1053,7 +1011,10 @@ remoteDispatchDomainCreateXml (struct qe CHECK_CONN(client); dom = virDomainCreateXML (client->conn, args->xml_desc, args->flags); - if (dom == NULL) return -1; + if (dom == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_domain (&ret->dom, dom); virDomainFree(dom); @@ -1064,7 +1025,7 @@ static int static int remoteDispatchDomainDefineXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_define_xml_args *args, remote_domain_define_xml_ret *ret) { @@ -1072,7 +1033,10 @@ remoteDispatchDomainDefineXml (struct qe CHECK_CONN(client); dom = virDomainDefineXML (client->conn, args->xml); - if (dom == NULL) return -1; + if (dom == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_domain (&ret->dom, dom); virDomainFree(dom); @@ -1083,7 +1047,7 @@ static int static int remoteDispatchDomainDestroy (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_destroy_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1092,12 +1056,13 @@ remoteDispatchDomainDestroy (struct qemu dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainDestroy (dom) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1107,7 +1072,7 @@ static int static int remoteDispatchDomainDetachDevice (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_detach_device_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1116,12 +1081,13 @@ remoteDispatchDomainDetachDevice (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainDetachDevice (dom, args->xml) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1132,7 +1098,7 @@ static int static int remoteDispatchDomainDumpXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_dump_xml_args *args, remote_domain_dump_xml_ret *ret) { @@ -1141,15 +1107,16 @@ remoteDispatchDomainDumpXml (struct qemu dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this. */ ret->xml = virDomainGetXMLDesc (dom, args->flags); if (!ret->xml) { - virDomainFree(dom); - return -1; + virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); + return -1; } virDomainFree(dom); return 0; @@ -1158,7 +1125,7 @@ static int static int remoteDispatchDomainGetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_autostart_args *args, remote_domain_get_autostart_ret *ret) { @@ -1167,12 +1134,13 @@ remoteDispatchDomainGetAutostart (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainGetAutostart (dom, &ret->autostart) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1182,7 +1150,7 @@ static int static int remoteDispatchDomainGetInfo (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_info_args *args, remote_domain_get_info_ret *ret) { @@ -1192,12 +1160,13 @@ remoteDispatchDomainGetInfo (struct qemu dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainGetInfo (dom, &info) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1215,7 +1184,7 @@ static int static int remoteDispatchDomainGetMaxMemory (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_max_memory_args *args, remote_domain_get_max_memory_ret *ret) { @@ -1224,13 +1193,14 @@ remoteDispatchDomainGetMaxMemory (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } ret->memory = virDomainGetMaxMemory (dom); if (ret->memory == 0) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1240,7 +1210,7 @@ static int static int remoteDispatchDomainGetMaxVcpus (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_max_vcpus_args *args, remote_domain_get_max_vcpus_ret *ret) { @@ -1249,13 +1219,14 @@ remoteDispatchDomainGetMaxVcpus (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } ret->num = virDomainGetMaxVcpus (dom); if (ret->num == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1265,7 +1236,7 @@ static int static int remoteDispatchDomainGetOsType (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_os_type_args *args, remote_domain_get_os_type_ret *ret) { @@ -1274,15 +1245,16 @@ remoteDispatchDomainGetOsType (struct qe dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this */ ret->type = virDomainGetOSType (dom); if (ret->type == NULL) { - virDomainFree(dom); - return -1; + virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); + return -1; } virDomainFree(dom); return 0; @@ -1291,7 +1263,7 @@ static int static int remoteDispatchDomainGetVcpus (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_get_vcpus_args *args, remote_domain_get_vcpus_ret *ret) { @@ -1303,20 +1275,20 @@ remoteDispatchDomainGetVcpus (struct qem dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (args->maxinfo > REMOTE_VCPUINFO_MAX) { virDomainFree(dom); - remoteDispatchError (client, req, "%s", _("maxinfo > REMOTE_VCPUINFO_MAX")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("maxinfo > REMOTE_VCPUINFO_MAX")); + return -1; } if (args->maxinfo * args->maplen > REMOTE_CPUMAPS_MAX) { virDomainFree(dom); - remoteDispatchError (client, req, "%s", _("maxinfo * maplen > REMOTE_CPUMAPS_MAX")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("maxinfo * maplen > REMOTE_CPUMAPS_MAX")); + return -1; } /* Allocate buffers to take the results. */ @@ -1332,6 +1304,7 @@ remoteDispatchDomainGetVcpus (struct qem VIR_FREE(info); VIR_FREE(cpumaps); virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1362,14 +1335,14 @@ oom: VIR_FREE(info); VIR_FREE(cpumaps); virDomainFree(dom); - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } static int remoteDispatchDomainMigratePrepare (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_migrate_prepare_args *args, remote_domain_migrate_prepare_ret *ret) { @@ -1386,8 +1359,8 @@ remoteDispatchDomainMigratePrepare (stru /* Wacky world of XDR ... */ if (VIR_ALLOC(uri_out) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } r = __virDomainMigratePrepare (client->conn, &cookie, &cookielen, @@ -1395,6 +1368,7 @@ remoteDispatchDomainMigratePrepare (stru args->flags, dname, args->resource); if (r == -1) { VIR_FREE(uri_out); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1416,7 +1390,7 @@ static int static int remoteDispatchDomainMigratePerform (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_migrate_perform_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1427,8 +1401,8 @@ remoteDispatchDomainMigratePerform (stru dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } dname = args->dname == NULL ? NULL : *args->dname; @@ -1439,7 +1413,10 @@ remoteDispatchDomainMigratePerform (stru args->uri, args->flags, dname, args->resource); virDomainFree (dom); - if (r == -1) return -1; + if (r == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -1447,7 +1424,7 @@ static int static int remoteDispatchDomainMigrateFinish (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_migrate_finish_args *args, remote_domain_migrate_finish_ret *ret) { @@ -1459,7 +1436,10 @@ remoteDispatchDomainMigrateFinish (struc args->cookie.cookie_len, args->uri, args->flags); - if (ddom == NULL) return -1; + if (ddom == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_domain (&ret->ddom, ddom); virDomainFree (ddom); @@ -1469,22 +1449,22 @@ static int static int remoteDispatchListDefinedDomains (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_list_defined_domains_args *args, remote_list_defined_domains_ret *ret) { CHECK_CONN(client); if (args->maxnames > REMOTE_DOMAIN_NAME_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxnames > REMOTE_DOMAIN_NAME_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxnames > REMOTE_DOMAIN_NAME_LIST_MAX")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->names.names_val, args->maxnames) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->names.names_len = @@ -1492,6 +1472,7 @@ remoteDispatchListDefinedDomains (struct ret->names.names_val, args->maxnames); if (ret->names.names_len == -1) { VIR_FREE(ret->names.names_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1501,7 +1482,7 @@ static int static int remoteDispatchDomainLookupById (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_lookup_by_id_args *args, remote_domain_lookup_by_id_ret *ret) { @@ -1509,7 +1490,10 @@ remoteDispatchDomainLookupById (struct q CHECK_CONN(client); dom = virDomainLookupByID (client->conn, args->id); - if (dom == NULL) return -1; + if (dom == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_domain (&ret->dom, dom); virDomainFree(dom); @@ -1519,7 +1503,7 @@ static int static int remoteDispatchDomainLookupByName (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_lookup_by_name_args *args, remote_domain_lookup_by_name_ret *ret) { @@ -1527,7 +1511,10 @@ remoteDispatchDomainLookupByName (struct CHECK_CONN(client); dom = virDomainLookupByName (client->conn, args->name); - if (dom == NULL) return -1; + if (dom == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_domain (&ret->dom, dom); virDomainFree(dom); @@ -1537,7 +1524,7 @@ static int static int remoteDispatchDomainLookupByUuid (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_lookup_by_uuid_args *args, remote_domain_lookup_by_uuid_ret *ret) { @@ -1545,7 +1532,10 @@ remoteDispatchDomainLookupByUuid (struct CHECK_CONN(client); dom = virDomainLookupByUUID (client->conn, (unsigned char *) args->uuid); - if (dom == NULL) return -1; + if (dom == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_domain (&ret->dom, dom); virDomainFree(dom); @@ -1555,14 +1545,17 @@ static int static int remoteDispatchNumOfDefinedDomains (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_num_of_defined_domains_ret *ret) { CHECK_CONN(client); ret->num = virConnectNumOfDefinedDomains (client->conn); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -1570,7 +1563,7 @@ static int static int remoteDispatchDomainPinVcpu (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_pin_vcpu_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1580,14 +1573,14 @@ remoteDispatchDomainPinVcpu (struct qemu dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (args->cpumap.cpumap_len > REMOTE_CPUMAP_MAX) { virDomainFree(dom); - remoteDispatchError (client, req, "%s", _("cpumap_len > REMOTE_CPUMAP_MAX")); - return -2; + remoteDispatchFormatError (rerr, "%s", _("cpumap_len > REMOTE_CPUMAP_MAX")); + return -1; } rv = virDomainPinVcpu (dom, args->vcpu, @@ -1595,6 +1588,7 @@ remoteDispatchDomainPinVcpu (struct qemu args->cpumap.cpumap_len); if (rv == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1604,7 +1598,7 @@ static int static int remoteDispatchDomainReboot (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_reboot_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1613,12 +1607,13 @@ remoteDispatchDomainReboot (struct qemud dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainReboot (dom, args->flags) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1628,14 +1623,16 @@ static int static int remoteDispatchDomainRestore (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_restore_args *args, void *ret ATTRIBUTE_UNUSED) { CHECK_CONN(client); - if (virDomainRestore (client->conn, args->from) == -1) + if (virDomainRestore (client->conn, args->from) == -1) { + remoteDispatchConnError(rerr, client->conn); return -1; + } return 0; } @@ -1643,7 +1640,7 @@ static int static int remoteDispatchDomainResume (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_resume_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1652,12 +1649,13 @@ remoteDispatchDomainResume (struct qemud dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainResume (dom) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1667,7 +1665,7 @@ static int static int remoteDispatchDomainSave (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_save_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1676,12 +1674,13 @@ remoteDispatchDomainSave (struct qemud_s dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainSave (dom, args->to) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1691,7 +1690,7 @@ static int static int remoteDispatchDomainCoreDump (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_core_dump_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1700,12 +1699,13 @@ remoteDispatchDomainCoreDump (struct qem dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainCoreDump (dom, args->to, args->flags) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1715,7 +1715,7 @@ static int static int remoteDispatchDomainSetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_set_autostart_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1724,12 +1724,13 @@ remoteDispatchDomainSetAutostart (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainSetAutostart (dom, args->autostart) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1739,7 +1740,7 @@ static int static int remoteDispatchDomainSetMaxMemory (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_set_max_memory_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1748,12 +1749,13 @@ remoteDispatchDomainSetMaxMemory (struct dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainSetMaxMemory (dom, args->memory) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1763,7 +1765,7 @@ static int static int remoteDispatchDomainSetMemory (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_set_memory_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1772,12 +1774,13 @@ remoteDispatchDomainSetMemory (struct qe dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainSetMemory (dom, args->memory) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1787,7 +1790,7 @@ static int static int remoteDispatchDomainSetVcpus (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_set_vcpus_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1796,12 +1799,13 @@ remoteDispatchDomainSetVcpus (struct qem dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainSetVcpus (dom, args->nvcpus) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1811,7 +1815,7 @@ static int static int remoteDispatchDomainShutdown (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_shutdown_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1820,12 +1824,13 @@ remoteDispatchDomainShutdown (struct qem dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainShutdown (dom) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1835,7 +1840,7 @@ static int static int remoteDispatchDomainSuspend (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_suspend_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1844,12 +1849,13 @@ remoteDispatchDomainSuspend (struct qemu dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainSuspend (dom) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1859,7 +1865,7 @@ static int static int remoteDispatchDomainUndefine (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_domain_undefine_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1868,12 +1874,13 @@ remoteDispatchDomainUndefine (struct qem dom = get_nonnull_domain (client->conn, args->dom); if (dom == NULL) { - remoteDispatchError (client, req, "%s", _("domain not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virDomainUndefine (dom) == -1) { virDomainFree(dom); + remoteDispatchConnError(rerr, client->conn); return -1; } virDomainFree(dom); @@ -1883,22 +1890,22 @@ static int static int remoteDispatchListDefinedNetworks (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_list_defined_networks_args *args, remote_list_defined_networks_ret *ret) { CHECK_CONN(client); if (args->maxnames > REMOTE_NETWORK_NAME_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxnames > REMOTE_NETWORK_NAME_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxnames > REMOTE_NETWORK_NAME_LIST_MAX")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->names.names_val, args->maxnames) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->names.names_len = @@ -1906,6 +1913,7 @@ remoteDispatchListDefinedNetworks (struc ret->names.names_val, args->maxnames); if (ret->names.names_len == -1) { VIR_FREE(ret->names.names_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1915,28 +1923,29 @@ static int static int remoteDispatchListDomains (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_list_domains_args *args, remote_list_domains_ret *ret) { CHECK_CONN(client); if (args->maxids > REMOTE_DOMAIN_ID_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxids > REMOTE_DOMAIN_ID_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxids > REMOTE_DOMAIN_ID_LIST_MAX")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->ids.ids_val, args->maxids) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->ids.ids_len = virConnectListDomains (client->conn, ret->ids.ids_val, args->maxids); if (ret->ids.ids_len == -1) { VIR_FREE(ret->ids.ids_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1946,22 +1955,22 @@ static int static int remoteDispatchListNetworks (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_list_networks_args *args, remote_list_networks_ret *ret) { CHECK_CONN(client); if (args->maxnames > REMOTE_NETWORK_NAME_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxnames > REMOTE_NETWORK_NAME_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxnames > REMOTE_NETWORK_NAME_LIST_MAX")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->names.names_val, args->maxnames) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->names.names_len = @@ -1969,6 +1978,7 @@ remoteDispatchListNetworks (struct qemud ret->names.names_val, args->maxnames); if (ret->names.names_len == -1) { VIR_FREE(ret->names.names_len); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -1978,7 +1988,7 @@ static int static int remoteDispatchNetworkCreate (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_create_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -1987,12 +1997,13 @@ remoteDispatchNetworkCreate (struct qemu net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virNetworkCreate (net) == -1) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2002,7 +2013,7 @@ static int static int remoteDispatchNetworkCreateXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_create_xml_args *args, remote_network_create_xml_ret *ret) { @@ -2010,7 +2021,10 @@ remoteDispatchNetworkCreateXml (struct q CHECK_CONN(client); net = virNetworkCreateXML (client->conn, args->xml); - if (net == NULL) return -1; + if (net == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_network (&ret->net, net); virNetworkFree(net); @@ -2020,7 +2034,7 @@ static int static int remoteDispatchNetworkDefineXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_define_xml_args *args, remote_network_define_xml_ret *ret) { @@ -2028,7 +2042,10 @@ remoteDispatchNetworkDefineXml (struct q CHECK_CONN(client); net = virNetworkDefineXML (client->conn, args->xml); - if (net == NULL) return -1; + if (net == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_network (&ret->net, net); virNetworkFree(net); @@ -2038,7 +2055,7 @@ static int static int remoteDispatchNetworkDestroy (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_destroy_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -2047,12 +2064,13 @@ remoteDispatchNetworkDestroy (struct qem net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virNetworkDestroy (net) == -1) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2062,7 +2080,7 @@ static int static int remoteDispatchNetworkDumpXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_dump_xml_args *args, remote_network_dump_xml_ret *ret) { @@ -2071,14 +2089,15 @@ remoteDispatchNetworkDumpXml (struct qem net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this. */ ret->xml = virNetworkGetXMLDesc (net, args->flags); if (!ret->xml) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2088,7 +2107,7 @@ static int static int remoteDispatchNetworkGetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_get_autostart_args *args, remote_network_get_autostart_ret *ret) { @@ -2097,12 +2116,13 @@ remoteDispatchNetworkGetAutostart (struc net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virNetworkGetAutostart (net, &ret->autostart) == -1) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2112,7 +2132,7 @@ static int static int remoteDispatchNetworkGetBridgeName (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_get_bridge_name_args *args, remote_network_get_bridge_name_ret *ret) { @@ -2121,14 +2141,15 @@ remoteDispatchNetworkGetBridgeName (stru net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this. */ ret->name = virNetworkGetBridgeName (net); if (!ret->name) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2138,7 +2159,7 @@ static int static int remoteDispatchNetworkLookupByName (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_lookup_by_name_args *args, remote_network_lookup_by_name_ret *ret) { @@ -2146,7 +2167,10 @@ remoteDispatchNetworkLookupByName (struc CHECK_CONN(client); net = virNetworkLookupByName (client->conn, args->name); - if (net == NULL) return -1; + if (net == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_network (&ret->net, net); virNetworkFree(net); @@ -2156,7 +2180,7 @@ static int static int remoteDispatchNetworkLookupByUuid (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_lookup_by_uuid_args *args, remote_network_lookup_by_uuid_ret *ret) { @@ -2164,7 +2188,10 @@ remoteDispatchNetworkLookupByUuid (struc CHECK_CONN(client); net = virNetworkLookupByUUID (client->conn, (unsigned char *) args->uuid); - if (net == NULL) return -1; + if (net == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_network (&ret->net, net); virNetworkFree(net); @@ -2174,7 +2201,7 @@ static int static int remoteDispatchNetworkSetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_set_autostart_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -2183,12 +2210,13 @@ remoteDispatchNetworkSetAutostart (struc net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virNetworkSetAutostart (net, args->autostart) == -1) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2198,7 +2226,7 @@ static int static int remoteDispatchNetworkUndefine (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_network_undefine_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -2207,12 +2235,13 @@ remoteDispatchNetworkUndefine (struct qe net = get_nonnull_network (client->conn, args->net); if (net == NULL) { - remoteDispatchError (client, req, "%s", _("network not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virNetworkUndefine (net) == -1) { virNetworkFree(net); + remoteDispatchConnError(rerr, client->conn); return -1; } virNetworkFree(net); @@ -2222,14 +2251,17 @@ static int static int remoteDispatchNumOfDefinedNetworks (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_num_of_defined_networks_ret *ret) { CHECK_CONN(client); ret->num = virConnectNumOfDefinedNetworks (client->conn); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -2237,14 +2269,17 @@ static int static int remoteDispatchNumOfDomains (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_num_of_domains_ret *ret) { CHECK_CONN(client); ret->num = virConnectNumOfDomains (client->conn); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -2252,14 +2287,17 @@ static int static int remoteDispatchNumOfNetworks (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_num_of_networks_ret *ret) { CHECK_CONN(client); ret->num = virConnectNumOfNetworks (client->conn); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -2268,14 +2306,14 @@ static int static int remoteDispatchAuthList (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req ATTRIBUTE_UNUSED, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_list_ret *ret) { ret->types.types_len = 1; if (VIR_ALLOC_N(ret->types.types_val, ret->types.types_len) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->types.types_val[0] = client->auth; return 0; @@ -2286,8 +2324,7 @@ remoteDispatchAuthList (struct qemud_ser /* * NB, keep in sync with similar method in src/remote_internal.c */ -static char *addrToString(struct qemud_client *client, - remote_message_header *req, +static char *addrToString(remote_error *rerr, struct sockaddr_storage *sa, socklen_t salen) { char host[1024], port[20]; char *addr; @@ -2297,14 +2334,14 @@ static char *addrToString(struct qemud_c host, sizeof(host), port, sizeof(port), NI_NUMERICHOST | NI_NUMERICSERV)) != 0) { - remoteDispatchError(client, req, - _("Cannot resolve address %d: %s"), - err, gai_strerror(err)); + remoteDispatchFormatError(rerr, + _("Cannot resolve address %d: %s"), + err, gai_strerror(err)); return NULL; } if (VIR_ALLOC_N(addr, strlen(host) + 1 + strlen(port) + 1) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); + remoteDispatchOOMError(rerr); return NULL; } @@ -2324,7 +2361,7 @@ static int static int remoteDispatchAuthSaslInit (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_sasl_init_ret *ret) { @@ -2339,33 +2376,33 @@ remoteDispatchAuthSaslInit (struct qemud if (client->auth != REMOTE_AUTH_SASL || client->saslconn != NULL) { qemudLog(QEMUD_ERR, "%s", _("client tried invalid SASL init request")); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } /* Get local address in form IPADDR:PORT */ salen = sizeof(sa); if (getsockname(client->fd, (struct sockaddr*)&sa, &salen) < 0) { - remoteDispatchError(client, req, - _("failed to get sock address %d (%s)"), - errno, strerror(errno)); - return -2; + remoteDispatchFormatError(rerr, + _("failed to get sock address %d (%s)"), + errno, strerror(errno)); + return -1; } - if ((localAddr = addrToString(client, req, &sa, salen)) == NULL) { - return -2; + if ((localAddr = addrToString(rerr, &sa, salen)) == NULL) { + return -1; } /* Get remote address in form IPADDR:PORT */ salen = sizeof(sa); if (getpeername(client->fd, (struct sockaddr*)&sa, &salen) < 0) { - remoteDispatchError(client, req, _("failed to get peer address %d (%s)"), - errno, strerror(errno)); + remoteDispatchFormatError(rerr, _("failed to get peer address %d (%s)"), + errno, strerror(errno)); VIR_FREE(localAddr); - return -2; + return -1; } - if ((remoteAddr = addrToString(client, req, &sa, salen)) == NULL) { + if ((remoteAddr = addrToString(rerr, &sa, salen)) == NULL) { VIR_FREE(localAddr); - return -2; + return -1; } err = sasl_server_new("libvirt", @@ -2381,9 +2418,9 @@ remoteDispatchAuthSaslInit (struct qemud if (err != SASL_OK) { qemudLog(QEMUD_ERR, _("sasl context setup failed %d (%s)"), err, sasl_errstring(err, NULL, NULL)); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); client->saslconn = NULL; - return -2; + return -1; } /* Inform SASL that we've got an external SSF layer from TLS */ @@ -2394,10 +2431,10 @@ remoteDispatchAuthSaslInit (struct qemud cipher = gnutls_cipher_get(client->tlssession); if (!(ssf = (sasl_ssf_t)gnutls_cipher_get_key_size(cipher))) { qemudLog(QEMUD_ERR, "%s", _("cannot TLS get cipher size")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; - return -2; + return -1; } ssf *= 8; /* tls key size is bytes, sasl wants bits */ @@ -2405,10 +2442,10 @@ remoteDispatchAuthSaslInit (struct qemud if (err != SASL_OK) { qemudLog(QEMUD_ERR, _("cannot set SASL external SSF %d (%s)"), err, sasl_errstring(err, NULL, NULL)); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; - return -2; + return -1; } } @@ -2434,10 +2471,10 @@ remoteDispatchAuthSaslInit (struct qemud if (err != SASL_OK) { qemudLog(QEMUD_ERR, _("cannot set SASL security props %d (%s)"), err, sasl_errstring(err, NULL, NULL)); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; - return -2; + return -1; } err = sasl_listmech(client->saslconn, @@ -2451,19 +2488,19 @@ remoteDispatchAuthSaslInit (struct qemud if (err != SASL_OK) { qemudLog(QEMUD_ERR, _("cannot list SASL mechanisms %d (%s)"), err, sasl_errdetail(client->saslconn)); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; - return -2; + return -1; } REMOTE_DEBUG("Available mechanisms for client: '%s'", mechlist); ret->mechlist = strdup(mechlist); if (!ret->mechlist) { qemudLog(QEMUD_ERR, "%s", _("cannot allocate mechlist")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; - return -2; + return -1; } return 0; @@ -2474,7 +2511,7 @@ remoteDispatchAuthSaslInit (struct qemud * got what we asked for */ static int remoteSASLCheckSSF (struct qemud_client *client, - remote_message_header *req) { + remote_error *rerr) { const void *val; int err, ssf; @@ -2486,7 +2523,7 @@ remoteSASLCheckSSF (struct qemud_client if (err != SASL_OK) { qemudLog(QEMUD_ERR, _("cannot query SASL ssf on connection %d (%s)"), err, sasl_errstring(err, NULL, NULL)); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; @@ -2495,7 +2532,7 @@ remoteSASLCheckSSF (struct qemud_client REMOTE_DEBUG("negotiated an SSF of %d", ssf); if (ssf < 56) { /* 56 is good for Kerberos */ qemudLog(QEMUD_ERR, _("negotiated SSF %d was not strong enough"), ssf); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; @@ -2516,7 +2553,7 @@ static int static int remoteSASLCheckAccess (struct qemud_server *server, struct qemud_client *client, - remote_message_header *req) { + remote_error *rerr) { const void *val; int err; char **wildcards; @@ -2526,14 +2563,14 @@ remoteSASLCheckAccess (struct qemud_serv qemudLog(QEMUD_ERR, _("cannot query SASL username on connection %d (%s)"), err, sasl_errstring(err, NULL, NULL)); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; } if (val == NULL) { qemudLog(QEMUD_ERR, "%s", _("no client username was found")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; @@ -2543,7 +2580,7 @@ remoteSASLCheckAccess (struct qemud_serv client->saslUsername = strdup((const char*)val); if (client->saslUsername == NULL) { qemudLog(QEMUD_ERR, "%s", _("out of memory copying username")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; @@ -2563,7 +2600,7 @@ remoteSASLCheckAccess (struct qemud_serv /* Denied */ qemudLog(QEMUD_ERR, _("SASL client %s not allowed in whitelist"), client->saslUsername); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; @@ -2576,7 +2613,7 @@ static int static int remoteDispatchAuthSaslStart (struct qemud_server *server, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_auth_sasl_start_args *args, remote_auth_sasl_start_ret *ret) { @@ -2588,8 +2625,8 @@ remoteDispatchAuthSaslStart (struct qemu if (client->auth != REMOTE_AUTH_SASL || client->saslconn == NULL) { qemudLog(QEMUD_ERR, "%s", _("client tried invalid SASL start request")); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } REMOTE_DEBUG("Using SASL mechanism %s. Data %d bytes, nil: %d", @@ -2607,23 +2644,23 @@ remoteDispatchAuthSaslStart (struct qemu err, sasl_errdetail(client->saslconn)); sasl_dispose(&client->saslconn); client->saslconn = NULL; - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } if (serveroutlen > REMOTE_AUTH_SASL_DATA_MAX) { qemudLog(QEMUD_ERR, _("sasl start reply data too long %d"), serveroutlen); sasl_dispose(&client->saslconn); client->saslconn = NULL; - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } /* NB, distinction of NULL vs "" is *critical* in SASL */ if (serverout) { if (VIR_ALLOC_N(ret->data.data_val, serveroutlen) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } memcpy(ret->data.data_val, serverout, serveroutlen); } else { @@ -2636,12 +2673,12 @@ remoteDispatchAuthSaslStart (struct qemu if (err == SASL_CONTINUE) { ret->complete = 0; } else { - if (remoteSASLCheckSSF(client, req) < 0) - return -2; + if (remoteSASLCheckSSF(client, rerr) < 0) + return -1; /* Check username whitelist ACL */ - if (remoteSASLCheckAccess(server, client, req) < 0) - return -2; + if (remoteSASLCheckAccess(server, client, rerr) < 0) + return -1; REMOTE_DEBUG("Authentication successful %d", client->fd); ret->complete = 1; @@ -2655,7 +2692,7 @@ static int static int remoteDispatchAuthSaslStep (struct qemud_server *server, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_auth_sasl_step_args *args, remote_auth_sasl_step_ret *ret) { @@ -2667,8 +2704,8 @@ remoteDispatchAuthSaslStep (struct qemud if (client->auth != REMOTE_AUTH_SASL || client->saslconn == NULL) { qemudLog(QEMUD_ERR, "%s", _("client tried invalid SASL start request")); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } REMOTE_DEBUG("Using SASL Data %d bytes, nil: %d", @@ -2685,8 +2722,8 @@ remoteDispatchAuthSaslStep (struct qemud err, sasl_errdetail(client->saslconn)); sasl_dispose(&client->saslconn); client->saslconn = NULL; - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } if (serveroutlen > REMOTE_AUTH_SASL_DATA_MAX) { @@ -2694,15 +2731,15 @@ remoteDispatchAuthSaslStep (struct qemud serveroutlen); sasl_dispose(&client->saslconn); client->saslconn = NULL; - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } /* NB, distinction of NULL vs "" is *critical* in SASL */ if (serverout) { if (VIR_ALLOC_N(ret->data.data_val, serveroutlen) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } memcpy(ret->data.data_val, serverout, serveroutlen); } else { @@ -2715,12 +2752,12 @@ remoteDispatchAuthSaslStep (struct qemud if (err == SASL_CONTINUE) { ret->complete = 0; } else { - if (remoteSASLCheckSSF(client, req) < 0) - return -2; + if (remoteSASLCheckSSF(client, rerr) < 0) + return -1; /* Check username whitelist ACL */ - if (remoteSASLCheckAccess(server, client, req) < 0) - return -2; + if (remoteSASLCheckAccess(server, client, rerr) < 0) + return -1; REMOTE_DEBUG("Authentication successful %d", client->fd); ret->complete = 1; @@ -2735,36 +2772,36 @@ static int static int remoteDispatchAuthSaslInit (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_sasl_init_ret *ret ATTRIBUTE_UNUSED) { qemudLog(QEMUD_ERR, "%s", _("client tried unsupported SASL init request")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); return -1; } static int remoteDispatchAuthSaslStart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_auth_sasl_start_args *args ATTRIBUTE_UNUSED, remote_auth_sasl_start_ret *ret ATTRIBUTE_UNUSED) { qemudLog(QEMUD_ERR, "%s", _("client tried unsupported SASL start request")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); return -1; } static int remoteDispatchAuthSaslStep (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_auth_sasl_step_args *args ATTRIBUTE_UNUSED, remote_auth_sasl_step_ret *ret ATTRIBUTE_UNUSED) { qemudLog(QEMUD_ERR, "%s", _("client tried unsupported SASL step request")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); return -1; } #endif /* HAVE_SASL */ @@ -2774,7 +2811,7 @@ static int static int remoteDispatchAuthPolkit (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_polkit_ret *ret) { @@ -2794,14 +2831,14 @@ remoteDispatchAuthPolkit (struct qemud_s if (client->auth != REMOTE_AUTH_POLKIT) { qemudLog(QEMUD_ERR, "%s", _("client tried invalid PolicyKit init request")); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } if (qemudGetSocketIdentity(client->fd, &callerUid, &callerPid) < 0) { qemudLog(QEMUD_ERR, "%s", _("cannot get peer socket identity")); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } qemudLog(QEMUD_INFO, _("Checking PID %d running as %d"), @@ -2812,16 +2849,16 @@ remoteDispatchAuthPolkit (struct qemud_s qemudLog(QEMUD_ERR, _("Failed to lookup policy kit caller: %s"), err.message); dbus_error_free(&err); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } if (!(pkaction = polkit_action_new())) { qemudLog(QEMUD_ERR, _("Failed to create polkit action %s\n"), strerror(errno)); polkit_caller_unref(pkcaller); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } polkit_action_set_action_id(pkaction, action); @@ -2835,8 +2872,8 @@ remoteDispatchAuthPolkit (struct qemud_s polkit_caller_unref(pkcaller); polkit_action_unref(pkaction); dbus_error_free(&err); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } #if HAVE_POLKIT_CONTEXT_IS_CALLER_AUTHORIZED @@ -2850,8 +2887,8 @@ remoteDispatchAuthPolkit (struct qemud_s _("Policy kit failed to check authorization %d %s"), polkit_error_get_error_code(pkerr), polkit_error_get_error_message(pkerr)); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } #else pkresult = polkit_context_can_caller_do_action(pkcontext, @@ -2867,8 +2904,8 @@ remoteDispatchAuthPolkit (struct qemud_s " result: %s\n"), action, callerPid, callerUid, polkit_result_to_string_representation(pkresult)); - remoteDispatchFailAuth(client, req); - return -2; + remoteDispatchAuthError(rerr); + return -1; } qemudLog(QEMUD_INFO, _("Policy allowed action %s from pid %d, uid %d, result %s"), @@ -2884,14 +2921,14 @@ remoteDispatchAuthPolkit (struct qemud_s static int remoteDispatchAuthPolkit (struct qemud_server *server ATTRIBUTE_UNUSED, - struct qemud_client *client, - remote_message_header *req, - void *args ATTRIBUTE_UNUSED, - remote_auth_polkit_ret *ret ATTRIBUTE_UNUSED) + struct qemud_client *client, + remote_error *rerr, + void *args ATTRIBUTE_UNUSED, + remote_auth_polkit_ret *ret ATTRIBUTE_UNUSED) { qemudLog(QEMUD_ERR, "%s", _("client tried unsupported PolicyKit init request")); - remoteDispatchFailAuth(client, req); + remoteDispatchAuthError(rerr); return -1; } #endif /* HAVE_POLKIT */ @@ -2905,22 +2942,22 @@ static int static int remoteDispatchListDefinedStoragePools (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_list_defined_storage_pools_args *args, remote_list_defined_storage_pools_ret *ret) { CHECK_CONN(client); if (args->maxnames > REMOTE_NETWORK_NAME_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxnames > REMOTE_NETWORK_NAME_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxnames > REMOTE_NETWORK_NAME_LIST_MAX")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->names.names_val, args->maxnames) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->names.names_len = @@ -2928,6 +2965,7 @@ remoteDispatchListDefinedStoragePools (s ret->names.names_val, args->maxnames); if (ret->names.names_len == -1) { VIR_FREE(ret->names.names_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -2937,22 +2975,22 @@ static int static int remoteDispatchListStoragePools (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_list_storage_pools_args *args, remote_list_storage_pools_ret *ret) { CHECK_CONN(client); if (args->maxnames > REMOTE_STORAGE_POOL_NAME_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxnames > REMOTE_STORAGE_POOL_NAME_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxnames > REMOTE_STORAGE_POOL_NAME_LIST_MAX")); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->names.names_val, args->maxnames) < 0) { - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->names.names_len = @@ -2960,6 +2998,7 @@ remoteDispatchListStoragePools (struct q ret->names.names_val, args->maxnames); if (ret->names.names_len == -1) { VIR_FREE(ret->names.names_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -2969,7 +3008,7 @@ static int static int remoteDispatchFindStoragePoolSources (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_find_storage_pool_sources_args *args, remote_find_storage_pool_sources_ret *ret) { @@ -2980,8 +3019,10 @@ remoteDispatchFindStoragePoolSources (st args->type, args->srcSpec ? *args->srcSpec : NULL, args->flags); - if (ret->xml == NULL) + if (ret->xml == NULL) { + remoteDispatchConnError(rerr, client->conn); return -1; + } return 0; } @@ -2990,7 +3031,7 @@ static int static int remoteDispatchStoragePoolCreate (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_create_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -2999,12 +3040,13 @@ remoteDispatchStoragePoolCreate (struct pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolCreate (pool, args->flags) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3014,7 +3056,7 @@ static int static int remoteDispatchStoragePoolCreateXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_create_xml_args *args, remote_storage_pool_create_xml_ret *ret) { @@ -3022,7 +3064,10 @@ remoteDispatchStoragePoolCreateXml (stru CHECK_CONN(client); pool = virStoragePoolCreateXML (client->conn, args->xml, args->flags); - if (pool == NULL) return -1; + if (pool == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_pool (&ret->pool, pool); virStoragePoolFree(pool); @@ -3032,7 +3077,7 @@ static int static int remoteDispatchStoragePoolDefineXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_define_xml_args *args, remote_storage_pool_define_xml_ret *ret) { @@ -3040,7 +3085,10 @@ remoteDispatchStoragePoolDefineXml (stru CHECK_CONN(client); pool = virStoragePoolDefineXML (client->conn, args->xml, args->flags); - if (pool == NULL) return -1; + if (pool == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_pool (&ret->pool, pool); virStoragePoolFree(pool); @@ -3049,22 +3097,23 @@ remoteDispatchStoragePoolDefineXml (stru static int remoteDispatchStoragePoolBuild (struct qemud_server *server ATTRIBUTE_UNUSED, - struct qemud_client *client, - remote_message_header *req, - remote_storage_pool_build_args *args, - void *ret ATTRIBUTE_UNUSED) + struct qemud_client *client, + remote_error *rerr, + remote_storage_pool_build_args *args, + void *ret ATTRIBUTE_UNUSED) { virStoragePoolPtr pool; CHECK_CONN(client); pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolBuild (pool, args->flags) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3075,7 +3124,7 @@ static int static int remoteDispatchStoragePoolDestroy (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_destroy_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -3084,12 +3133,13 @@ remoteDispatchStoragePoolDestroy (struct pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolDestroy (pool) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3099,7 +3149,7 @@ static int static int remoteDispatchStoragePoolDelete (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_delete_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -3108,12 +3158,13 @@ remoteDispatchStoragePoolDelete (struct pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolDelete (pool, args->flags) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3123,7 +3174,7 @@ static int static int remoteDispatchStoragePoolRefresh (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_refresh_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -3132,12 +3183,13 @@ remoteDispatchStoragePoolRefresh (struct pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolRefresh (pool, args->flags) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3147,7 +3199,7 @@ static int static int remoteDispatchStoragePoolGetInfo (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_get_info_args *args, remote_storage_pool_get_info_ret *ret) { @@ -3157,12 +3209,13 @@ remoteDispatchStoragePoolGetInfo (struct pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolGetInfo (pool, &info) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -3179,7 +3232,7 @@ static int static int remoteDispatchStoragePoolDumpXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_dump_xml_args *args, remote_storage_pool_dump_xml_ret *ret) { @@ -3188,14 +3241,15 @@ remoteDispatchStoragePoolDumpXml (struct pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this. */ ret->xml = virStoragePoolGetXMLDesc (pool, args->flags); if (!ret->xml) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3205,7 +3259,7 @@ static int static int remoteDispatchStoragePoolGetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_get_autostart_args *args, remote_storage_pool_get_autostart_ret *ret) { @@ -3214,12 +3268,13 @@ remoteDispatchStoragePoolGetAutostart (s pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolGetAutostart (pool, &ret->autostart) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3230,7 +3285,7 @@ static int static int remoteDispatchStoragePoolLookupByName (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_lookup_by_name_args *args, remote_storage_pool_lookup_by_name_ret *ret) { @@ -3238,7 +3293,10 @@ remoteDispatchStoragePoolLookupByName (s CHECK_CONN(client); pool = virStoragePoolLookupByName (client->conn, args->name); - if (pool == NULL) return -1; + if (pool == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_pool (&ret->pool, pool); virStoragePoolFree(pool); @@ -3248,7 +3306,7 @@ static int static int remoteDispatchStoragePoolLookupByUuid (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_lookup_by_uuid_args *args, remote_storage_pool_lookup_by_uuid_ret *ret) { @@ -3256,7 +3314,10 @@ remoteDispatchStoragePoolLookupByUuid (s CHECK_CONN(client); pool = virStoragePoolLookupByUUID (client->conn, (unsigned char *) args->uuid); - if (pool == NULL) return -1; + if (pool == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_pool (&ret->pool, pool); virStoragePoolFree(pool); @@ -3266,7 +3327,7 @@ static int static int remoteDispatchStoragePoolLookupByVolume (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_lookup_by_volume_args *args, remote_storage_pool_lookup_by_volume_ret *ret) { @@ -3275,10 +3336,17 @@ remoteDispatchStoragePoolLookupByVolume CHECK_CONN(client); vol = get_nonnull_storage_vol (client->conn, args->vol); + if (vol == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } pool = virStoragePoolLookupByVolume (vol); virStorageVolFree(vol); - if (pool == NULL) return -1; + if (pool == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_pool (&ret->pool, pool); virStoragePoolFree(pool); @@ -3288,7 +3356,7 @@ static int static int remoteDispatchStoragePoolSetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_set_autostart_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -3297,12 +3365,13 @@ remoteDispatchStoragePoolSetAutostart (s pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolSetAutostart (pool, args->autostart) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3312,7 +3381,7 @@ static int static int remoteDispatchStoragePoolUndefine (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_undefine_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -3321,12 +3390,13 @@ remoteDispatchStoragePoolUndefine (struc pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStoragePoolUndefine (pool) == -1) { virStoragePoolFree(pool); + remoteDispatchConnError(rerr, client->conn); return -1; } virStoragePoolFree(pool); @@ -3336,14 +3406,17 @@ static int static int remoteDispatchNumOfStoragePools (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_num_of_storage_pools_ret *ret) { CHECK_CONN(client); ret->num = virConnectNumOfStoragePools (client->conn); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -3351,14 +3424,17 @@ static int static int remoteDispatchNumOfDefinedStoragePools (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_num_of_defined_storage_pools_ret *ret) { CHECK_CONN(client); ret->num = virConnectNumOfDefinedStoragePools (client->conn); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -3366,7 +3442,7 @@ static int static int remoteDispatchStoragePoolListVolumes (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_list_volumes_args *args, remote_storage_pool_list_volumes_ret *ret) { @@ -3374,22 +3450,22 @@ remoteDispatchStoragePoolListVolumes (st CHECK_CONN(client); if (args->maxnames > REMOTE_STORAGE_VOL_NAME_LIST_MAX) { - remoteDispatchError (client, req, - "%s", _("maxnames > REMOTE_STORAGE_VOL_NAME_LIST_MAX")); - return -2; + remoteDispatchFormatError (rerr, + "%s", _("maxnames > REMOTE_STORAGE_VOL_NAME_LIST_MAX")); + return -1; } pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* Allocate return buffer. */ if (VIR_ALLOC_N(ret->names.names_val, args->maxnames) < 0) { virStoragePoolFree(pool); - remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, NULL); - return -2; + remoteDispatchOOMError(rerr); + return -1; } ret->names.names_len = @@ -3398,6 +3474,7 @@ remoteDispatchStoragePoolListVolumes (st virStoragePoolFree(pool); if (ret->names.names_len == -1) { VIR_FREE(ret->names.names_val); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -3408,7 +3485,7 @@ static int static int remoteDispatchStoragePoolNumOfVolumes (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_pool_num_of_volumes_args *args, remote_storage_pool_num_of_volumes_ret *ret) { @@ -3417,13 +3494,16 @@ remoteDispatchStoragePoolNumOfVolumes (s pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } ret->num = virStoragePoolNumOfVolumes (pool); virStoragePoolFree(pool); - if (ret->num == -1) return -1; + if (ret->num == -1) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } return 0; } @@ -3438,7 +3518,7 @@ static int static int remoteDispatchStorageVolCreateXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_create_xml_args *args, remote_storage_vol_create_xml_ret *ret) { @@ -3448,13 +3528,16 @@ remoteDispatchStorageVolCreateXml (struc pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } vol = virStorageVolCreateXML (pool, args->xml, args->flags); virStoragePoolFree(pool); - if (vol == NULL) return -1; + if (vol == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_vol (&ret->vol, vol); virStorageVolFree(vol); @@ -3465,7 +3548,7 @@ static int static int remoteDispatchStorageVolDelete (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_delete_args *args, void *ret ATTRIBUTE_UNUSED) { @@ -3474,12 +3557,13 @@ remoteDispatchStorageVolDelete (struct q vol = get_nonnull_storage_vol (client->conn, args->vol); if (vol == NULL) { - remoteDispatchError (client, req, "%s", _("storage_vol not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStorageVolDelete (vol, args->flags) == -1) { virStorageVolFree(vol); + remoteDispatchConnError(rerr, client->conn); return -1; } virStorageVolFree(vol); @@ -3489,7 +3573,7 @@ static int static int remoteDispatchStorageVolGetInfo (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_get_info_args *args, remote_storage_vol_get_info_ret *ret) { @@ -3499,12 +3583,13 @@ remoteDispatchStorageVolGetInfo (struct vol = get_nonnull_storage_vol (client->conn, args->vol); if (vol == NULL) { - remoteDispatchError (client, req, "%s", _("storage_vol not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } if (virStorageVolGetInfo (vol, &info) == -1) { virStorageVolFree(vol); + remoteDispatchConnError(rerr, client->conn); return -1; } @@ -3520,7 +3605,7 @@ static int static int remoteDispatchStorageVolDumpXml (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_dump_xml_args *args, remote_storage_vol_dump_xml_ret *ret) { @@ -3529,14 +3614,15 @@ remoteDispatchStorageVolDumpXml (struct vol = get_nonnull_storage_vol (client->conn, args->vol); if (vol == NULL) { - remoteDispatchError (client, req, "%s", _("storage_vol not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this. */ ret->xml = virStorageVolGetXMLDesc (vol, args->flags); if (!ret->xml) { virStorageVolFree(vol); + remoteDispatchConnError(rerr, client->conn); return -1; } virStorageVolFree(vol); @@ -3547,7 +3633,7 @@ static int static int remoteDispatchStorageVolGetPath (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_get_path_args *args, remote_storage_vol_get_path_ret *ret) { @@ -3556,14 +3642,15 @@ remoteDispatchStorageVolGetPath (struct vol = get_nonnull_storage_vol (client->conn, args->vol); if (vol == NULL) { - remoteDispatchError (client, req, "%s", _("storage_vol not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } /* remoteDispatchClientRequest will free this. */ ret->name = virStorageVolGetPath (vol); if (!ret->name) { virStorageVolFree(vol); + remoteDispatchConnError(rerr, client->conn); return -1; } virStorageVolFree(vol); @@ -3574,7 +3661,7 @@ static int static int remoteDispatchStorageVolLookupByName (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_lookup_by_name_args *args, remote_storage_vol_lookup_by_name_ret *ret) { @@ -3584,13 +3671,16 @@ remoteDispatchStorageVolLookupByName (st pool = get_nonnull_storage_pool (client->conn, args->pool); if (pool == NULL) { - remoteDispatchError (client, req, "%s", _("storage_pool not found")); - return -2; + remoteDispatchConnError(rerr, client->conn); + return -1; } vol = virStorageVolLookupByName (pool, args->name); virStoragePoolFree(pool); - if (vol == NULL) return -1; + if (vol == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_vol (&ret->vol, vol); virStorageVolFree(vol); @@ -3600,7 +3690,7 @@ static int static int remoteDispatchStorageVolLookupByKey (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_lookup_by_key_args *args, remote_storage_vol_lookup_by_key_ret *ret) { @@ -3608,7 +3698,10 @@ remoteDispatchStorageVolLookupByKey (str CHECK_CONN(client); vol = virStorageVolLookupByKey (client->conn, args->key); - if (vol == NULL) return -1; + if (vol == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_vol (&ret->vol, vol); virStorageVolFree(vol); @@ -3619,7 +3712,7 @@ static int static int remoteDispatchStorageVolLookupByPath (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client, - remote_message_header *req, + remote_error *rerr, remote_storage_vol_lookup_by_path_args *args, remote_storage_vol_lookup_by_path_ret *ret) { @@ -3627,7 +3720,10 @@ remoteDispatchStorageVolLookupByPath (st CHECK_CONN(client); vol = virStorageVolLookupByPath (client->conn, args->path); - if (vol == NULL) return -1; + if (vol == NULL) { + remoteDispatchConnError(rerr, client->conn); + return -1; + } make_nonnull_storage_vol (&ret->vol, vol); virStorageVolFree(vol); diff --git a/qemud/remote_dispatch_prototypes.h b/qemud/remote_dispatch_prototypes.h --- a/qemud/remote_dispatch_prototypes.h +++ b/qemud/remote_dispatch_prototypes.h @@ -2,107 +2,107 @@ * Do not edit this file. Any changes you make will be lost. */ -static int remoteDispatchAuthList (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_auth_list_ret *ret); -static int remoteDispatchAuthPolkit (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_auth_polkit_ret *ret); -static int remoteDispatchAuthSaslInit (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_auth_sasl_init_ret *ret); -static int remoteDispatchAuthSaslStart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_auth_sasl_start_args *args, remote_auth_sasl_start_ret *ret); -static int remoteDispatchAuthSaslStep (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_auth_sasl_step_args *args, remote_auth_sasl_step_ret *ret); -static int remoteDispatchClose (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, void *ret); -static int remoteDispatchDomainAttachDevice (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_attach_device_args *args, void *ret); -static int remoteDispatchDomainBlockPeek (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_block_peek_args *args, remote_domain_block_peek_ret *ret); -static int remoteDispatchDomainBlockStats (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_block_stats_args *args, remote_domain_block_stats_ret *ret); -static int remoteDispatchDomainCoreDump (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_core_dump_args *args, void *ret); -static int remoteDispatchDomainCreate (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_create_args *args, void *ret); -static int remoteDispatchDomainCreateXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_create_xml_args *args, remote_domain_create_xml_ret *ret); -static int remoteDispatchDomainDefineXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_define_xml_args *args, remote_domain_define_xml_ret *ret); -static int remoteDispatchDomainDestroy (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_destroy_args *args, void *ret); -static int remoteDispatchDomainDetachDevice (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_detach_device_args *args, void *ret); -static int remoteDispatchDomainDumpXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_dump_xml_args *args, remote_domain_dump_xml_ret *ret); -static int remoteDispatchDomainGetAutostart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_autostart_args *args, remote_domain_get_autostart_ret *ret); -static int remoteDispatchDomainGetInfo (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_info_args *args, remote_domain_get_info_ret *ret); -static int remoteDispatchDomainGetMaxMemory (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_max_memory_args *args, remote_domain_get_max_memory_ret *ret); -static int remoteDispatchDomainGetMaxVcpus (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_max_vcpus_args *args, remote_domain_get_max_vcpus_ret *ret); -static int remoteDispatchDomainGetOsType (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_os_type_args *args, remote_domain_get_os_type_ret *ret); -static int remoteDispatchDomainGetSchedulerParameters (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_scheduler_parameters_args *args, remote_domain_get_scheduler_parameters_ret *ret); -static int remoteDispatchDomainGetSchedulerType (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_scheduler_type_args *args, remote_domain_get_scheduler_type_ret *ret); -static int remoteDispatchDomainGetVcpus (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_get_vcpus_args *args, remote_domain_get_vcpus_ret *ret); -static int remoteDispatchDomainInterfaceStats (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_interface_stats_args *args, remote_domain_interface_stats_ret *ret); -static int remoteDispatchDomainLookupById (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_lookup_by_id_args *args, remote_domain_lookup_by_id_ret *ret); -static int remoteDispatchDomainLookupByName (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_lookup_by_name_args *args, remote_domain_lookup_by_name_ret *ret); -static int remoteDispatchDomainLookupByUuid (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_lookup_by_uuid_args *args, remote_domain_lookup_by_uuid_ret *ret); -static int remoteDispatchDomainMemoryPeek (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_memory_peek_args *args, remote_domain_memory_peek_ret *ret); -static int remoteDispatchDomainMigrateFinish (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_migrate_finish_args *args, remote_domain_migrate_finish_ret *ret); -static int remoteDispatchDomainMigratePerform (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_migrate_perform_args *args, void *ret); -static int remoteDispatchDomainMigratePrepare (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_migrate_prepare_args *args, remote_domain_migrate_prepare_ret *ret); -static int remoteDispatchDomainPinVcpu (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_pin_vcpu_args *args, void *ret); -static int remoteDispatchDomainReboot (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_reboot_args *args, void *ret); -static int remoteDispatchDomainRestore (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_restore_args *args, void *ret); -static int remoteDispatchDomainResume (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_resume_args *args, void *ret); -static int remoteDispatchDomainSave (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_save_args *args, void *ret); -static int remoteDispatchDomainSetAutostart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_set_autostart_args *args, void *ret); -static int remoteDispatchDomainSetMaxMemory (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_set_max_memory_args *args, void *ret); -static int remoteDispatchDomainSetMemory (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_set_memory_args *args, void *ret); -static int remoteDispatchDomainSetSchedulerParameters (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_set_scheduler_parameters_args *args, void *ret); -static int remoteDispatchDomainSetVcpus (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_set_vcpus_args *args, void *ret); -static int remoteDispatchDomainShutdown (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_shutdown_args *args, void *ret); -static int remoteDispatchDomainSuspend (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_suspend_args *args, void *ret); -static int remoteDispatchDomainUndefine (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_domain_undefine_args *args, void *ret); -static int remoteDispatchFindStoragePoolSources (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_find_storage_pool_sources_args *args, remote_find_storage_pool_sources_ret *ret); -static int remoteDispatchGetCapabilities (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_get_capabilities_ret *ret); -static int remoteDispatchGetHostname (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_get_hostname_ret *ret); -static int remoteDispatchGetMaxVcpus (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_get_max_vcpus_args *args, remote_get_max_vcpus_ret *ret); -static int remoteDispatchGetType (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_get_type_ret *ret); -static int remoteDispatchGetVersion (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_get_version_ret *ret); -static int remoteDispatchListDefinedDomains (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_list_defined_domains_args *args, remote_list_defined_domains_ret *ret); -static int remoteDispatchListDefinedNetworks (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_list_defined_networks_args *args, remote_list_defined_networks_ret *ret); -static int remoteDispatchListDefinedStoragePools (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_list_defined_storage_pools_args *args, remote_list_defined_storage_pools_ret *ret); -static int remoteDispatchListDomains (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_list_domains_args *args, remote_list_domains_ret *ret); -static int remoteDispatchListNetworks (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_list_networks_args *args, remote_list_networks_ret *ret); -static int remoteDispatchListStoragePools (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_list_storage_pools_args *args, remote_list_storage_pools_ret *ret); -static int remoteDispatchNetworkCreate (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_create_args *args, void *ret); -static int remoteDispatchNetworkCreateXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_create_xml_args *args, remote_network_create_xml_ret *ret); -static int remoteDispatchNetworkDefineXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_define_xml_args *args, remote_network_define_xml_ret *ret); -static int remoteDispatchNetworkDestroy (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_destroy_args *args, void *ret); -static int remoteDispatchNetworkDumpXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_dump_xml_args *args, remote_network_dump_xml_ret *ret); -static int remoteDispatchNetworkGetAutostart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_get_autostart_args *args, remote_network_get_autostart_ret *ret); -static int remoteDispatchNetworkGetBridgeName (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_get_bridge_name_args *args, remote_network_get_bridge_name_ret *ret); -static int remoteDispatchNetworkLookupByName (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_lookup_by_name_args *args, remote_network_lookup_by_name_ret *ret); -static int remoteDispatchNetworkLookupByUuid (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_lookup_by_uuid_args *args, remote_network_lookup_by_uuid_ret *ret); -static int remoteDispatchNetworkSetAutostart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_set_autostart_args *args, void *ret); -static int remoteDispatchNetworkUndefine (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_network_undefine_args *args, void *ret); -static int remoteDispatchNodeGetCellsFreeMemory (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_node_get_cells_free_memory_args *args, remote_node_get_cells_free_memory_ret *ret); -static int remoteDispatchNodeGetFreeMemory (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_node_get_free_memory_ret *ret); -static int remoteDispatchNodeGetInfo (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_node_get_info_ret *ret); -static int remoteDispatchNumOfDefinedDomains (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_num_of_defined_domains_ret *ret); -static int remoteDispatchNumOfDefinedNetworks (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_num_of_defined_networks_ret *ret); -static int remoteDispatchNumOfDefinedStoragePools (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_num_of_defined_storage_pools_ret *ret); -static int remoteDispatchNumOfDomains (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_num_of_domains_ret *ret); -static int remoteDispatchNumOfNetworks (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_num_of_networks_ret *ret); -static int remoteDispatchNumOfStoragePools (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, void *args, remote_num_of_storage_pools_ret *ret); -static int remoteDispatchOpen (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_open_args *args, void *ret); -static int remoteDispatchStoragePoolBuild (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_build_args *args, void *ret); -static int remoteDispatchStoragePoolCreate (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_create_args *args, void *ret); -static int remoteDispatchStoragePoolCreateXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_create_xml_args *args, remote_storage_pool_create_xml_ret *ret); -static int remoteDispatchStoragePoolDefineXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_define_xml_args *args, remote_storage_pool_define_xml_ret *ret); -static int remoteDispatchStoragePoolDelete (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_delete_args *args, void *ret); -static int remoteDispatchStoragePoolDestroy (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_destroy_args *args, void *ret); -static int remoteDispatchStoragePoolDumpXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_dump_xml_args *args, remote_storage_pool_dump_xml_ret *ret); -static int remoteDispatchStoragePoolGetAutostart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_get_autostart_args *args, remote_storage_pool_get_autostart_ret *ret); -static int remoteDispatchStoragePoolGetInfo (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_get_info_args *args, remote_storage_pool_get_info_ret *ret); -static int remoteDispatchStoragePoolListVolumes (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_list_volumes_args *args, remote_storage_pool_list_volumes_ret *ret); -static int remoteDispatchStoragePoolLookupByName (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_lookup_by_name_args *args, remote_storage_pool_lookup_by_name_ret *ret); -static int remoteDispatchStoragePoolLookupByUuid (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_lookup_by_uuid_args *args, remote_storage_pool_lookup_by_uuid_ret *ret); -static int remoteDispatchStoragePoolLookupByVolume (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_lookup_by_volume_args *args, remote_storage_pool_lookup_by_volume_ret *ret); -static int remoteDispatchStoragePoolNumOfVolumes (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_num_of_volumes_args *args, remote_storage_pool_num_of_volumes_ret *ret); -static int remoteDispatchStoragePoolRefresh (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_refresh_args *args, void *ret); -static int remoteDispatchStoragePoolSetAutostart (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_set_autostart_args *args, void *ret); -static int remoteDispatchStoragePoolUndefine (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_pool_undefine_args *args, void *ret); -static int remoteDispatchStorageVolCreateXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_create_xml_args *args, remote_storage_vol_create_xml_ret *ret); -static int remoteDispatchStorageVolDelete (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_delete_args *args, void *ret); -static int remoteDispatchStorageVolDumpXml (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_dump_xml_args *args, remote_storage_vol_dump_xml_ret *ret); -static int remoteDispatchStorageVolGetInfo (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_get_info_args *args, remote_storage_vol_get_info_ret *ret); -static int remoteDispatchStorageVolGetPath (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_get_path_args *args, remote_storage_vol_get_path_ret *ret); -static int remoteDispatchStorageVolLookupByKey (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_lookup_by_key_args *args, remote_storage_vol_lookup_by_key_ret *ret); -static int remoteDispatchStorageVolLookupByName (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_lookup_by_name_args *args, remote_storage_vol_lookup_by_name_ret *ret); -static int remoteDispatchStorageVolLookupByPath (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_storage_vol_lookup_by_path_args *args, remote_storage_vol_lookup_by_path_ret *ret); -static int remoteDispatchSupportsFeature (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, remote_supports_feature_args *args, remote_supports_feature_ret *ret); +static int remoteDispatchAuthList (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_auth_list_ret *ret); +static int remoteDispatchAuthPolkit (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_auth_polkit_ret *ret); +static int remoteDispatchAuthSaslInit (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_auth_sasl_init_ret *ret); +static int remoteDispatchAuthSaslStart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_auth_sasl_start_args *args, remote_auth_sasl_start_ret *ret); +static int remoteDispatchAuthSaslStep (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_auth_sasl_step_args *args, remote_auth_sasl_step_ret *ret); +static int remoteDispatchClose (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, void *ret); +static int remoteDispatchDomainAttachDevice (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_attach_device_args *args, void *ret); +static int remoteDispatchDomainBlockPeek (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_block_peek_args *args, remote_domain_block_peek_ret *ret); +static int remoteDispatchDomainBlockStats (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_block_stats_args *args, remote_domain_block_stats_ret *ret); +static int remoteDispatchDomainCoreDump (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_core_dump_args *args, void *ret); +static int remoteDispatchDomainCreate (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_create_args *args, void *ret); +static int remoteDispatchDomainCreateXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_create_xml_args *args, remote_domain_create_xml_ret *ret); +static int remoteDispatchDomainDefineXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_define_xml_args *args, remote_domain_define_xml_ret *ret); +static int remoteDispatchDomainDestroy (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_destroy_args *args, void *ret); +static int remoteDispatchDomainDetachDevice (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_detach_device_args *args, void *ret); +static int remoteDispatchDomainDumpXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_dump_xml_args *args, remote_domain_dump_xml_ret *ret); +static int remoteDispatchDomainGetAutostart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_autostart_args *args, remote_domain_get_autostart_ret *ret); +static int remoteDispatchDomainGetInfo (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_info_args *args, remote_domain_get_info_ret *ret); +static int remoteDispatchDomainGetMaxMemory (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_max_memory_args *args, remote_domain_get_max_memory_ret *ret); +static int remoteDispatchDomainGetMaxVcpus (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_max_vcpus_args *args, remote_domain_get_max_vcpus_ret *ret); +static int remoteDispatchDomainGetOsType (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_os_type_args *args, remote_domain_get_os_type_ret *ret); +static int remoteDispatchDomainGetSchedulerParameters (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_scheduler_parameters_args *args, remote_domain_get_scheduler_parameters_ret *ret); +static int remoteDispatchDomainGetSchedulerType (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_scheduler_type_args *args, remote_domain_get_scheduler_type_ret *ret); +static int remoteDispatchDomainGetVcpus (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_get_vcpus_args *args, remote_domain_get_vcpus_ret *ret); +static int remoteDispatchDomainInterfaceStats (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_interface_stats_args *args, remote_domain_interface_stats_ret *ret); +static int remoteDispatchDomainLookupById (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_lookup_by_id_args *args, remote_domain_lookup_by_id_ret *ret); +static int remoteDispatchDomainLookupByName (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_lookup_by_name_args *args, remote_domain_lookup_by_name_ret *ret); +static int remoteDispatchDomainLookupByUuid (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_lookup_by_uuid_args *args, remote_domain_lookup_by_uuid_ret *ret); +static int remoteDispatchDomainMemoryPeek (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_memory_peek_args *args, remote_domain_memory_peek_ret *ret); +static int remoteDispatchDomainMigrateFinish (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_migrate_finish_args *args, remote_domain_migrate_finish_ret *ret); +static int remoteDispatchDomainMigratePerform (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_migrate_perform_args *args, void *ret); +static int remoteDispatchDomainMigratePrepare (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_migrate_prepare_args *args, remote_domain_migrate_prepare_ret *ret); +static int remoteDispatchDomainPinVcpu (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_pin_vcpu_args *args, void *ret); +static int remoteDispatchDomainReboot (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_reboot_args *args, void *ret); +static int remoteDispatchDomainRestore (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_restore_args *args, void *ret); +static int remoteDispatchDomainResume (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_resume_args *args, void *ret); +static int remoteDispatchDomainSave (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_save_args *args, void *ret); +static int remoteDispatchDomainSetAutostart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_set_autostart_args *args, void *ret); +static int remoteDispatchDomainSetMaxMemory (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_set_max_memory_args *args, void *ret); +static int remoteDispatchDomainSetMemory (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_set_memory_args *args, void *ret); +static int remoteDispatchDomainSetSchedulerParameters (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_set_scheduler_parameters_args *args, void *ret); +static int remoteDispatchDomainSetVcpus (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_set_vcpus_args *args, void *ret); +static int remoteDispatchDomainShutdown (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_shutdown_args *args, void *ret); +static int remoteDispatchDomainSuspend (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_suspend_args *args, void *ret); +static int remoteDispatchDomainUndefine (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_domain_undefine_args *args, void *ret); +static int remoteDispatchFindStoragePoolSources (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_find_storage_pool_sources_args *args, remote_find_storage_pool_sources_ret *ret); +static int remoteDispatchGetCapabilities (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_get_capabilities_ret *ret); +static int remoteDispatchGetHostname (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_get_hostname_ret *ret); +static int remoteDispatchGetMaxVcpus (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_get_max_vcpus_args *args, remote_get_max_vcpus_ret *ret); +static int remoteDispatchGetType (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_get_type_ret *ret); +static int remoteDispatchGetVersion (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_get_version_ret *ret); +static int remoteDispatchListDefinedDomains (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_list_defined_domains_args *args, remote_list_defined_domains_ret *ret); +static int remoteDispatchListDefinedNetworks (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_list_defined_networks_args *args, remote_list_defined_networks_ret *ret); +static int remoteDispatchListDefinedStoragePools (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_list_defined_storage_pools_args *args, remote_list_defined_storage_pools_ret *ret); +static int remoteDispatchListDomains (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_list_domains_args *args, remote_list_domains_ret *ret); +static int remoteDispatchListNetworks (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_list_networks_args *args, remote_list_networks_ret *ret); +static int remoteDispatchListStoragePools (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_list_storage_pools_args *args, remote_list_storage_pools_ret *ret); +static int remoteDispatchNetworkCreate (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_create_args *args, void *ret); +static int remoteDispatchNetworkCreateXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_create_xml_args *args, remote_network_create_xml_ret *ret); +static int remoteDispatchNetworkDefineXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_define_xml_args *args, remote_network_define_xml_ret *ret); +static int remoteDispatchNetworkDestroy (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_destroy_args *args, void *ret); +static int remoteDispatchNetworkDumpXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_dump_xml_args *args, remote_network_dump_xml_ret *ret); +static int remoteDispatchNetworkGetAutostart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_get_autostart_args *args, remote_network_get_autostart_ret *ret); +static int remoteDispatchNetworkGetBridgeName (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_get_bridge_name_args *args, remote_network_get_bridge_name_ret *ret); +static int remoteDispatchNetworkLookupByName (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_lookup_by_name_args *args, remote_network_lookup_by_name_ret *ret); +static int remoteDispatchNetworkLookupByUuid (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_lookup_by_uuid_args *args, remote_network_lookup_by_uuid_ret *ret); +static int remoteDispatchNetworkSetAutostart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_set_autostart_args *args, void *ret); +static int remoteDispatchNetworkUndefine (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_network_undefine_args *args, void *ret); +static int remoteDispatchNodeGetCellsFreeMemory (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_node_get_cells_free_memory_args *args, remote_node_get_cells_free_memory_ret *ret); +static int remoteDispatchNodeGetFreeMemory (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_node_get_free_memory_ret *ret); +static int remoteDispatchNodeGetInfo (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_node_get_info_ret *ret); +static int remoteDispatchNumOfDefinedDomains (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_num_of_defined_domains_ret *ret); +static int remoteDispatchNumOfDefinedNetworks (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_num_of_defined_networks_ret *ret); +static int remoteDispatchNumOfDefinedStoragePools (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_num_of_defined_storage_pools_ret *ret); +static int remoteDispatchNumOfDomains (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_num_of_domains_ret *ret); +static int remoteDispatchNumOfNetworks (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_num_of_networks_ret *ret); +static int remoteDispatchNumOfStoragePools (struct qemud_server *server, struct qemud_client *client, remote_error *err, void *args, remote_num_of_storage_pools_ret *ret); +static int remoteDispatchOpen (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_open_args *args, void *ret); +static int remoteDispatchStoragePoolBuild (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_build_args *args, void *ret); +static int remoteDispatchStoragePoolCreate (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_create_args *args, void *ret); +static int remoteDispatchStoragePoolCreateXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_create_xml_args *args, remote_storage_pool_create_xml_ret *ret); +static int remoteDispatchStoragePoolDefineXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_define_xml_args *args, remote_storage_pool_define_xml_ret *ret); +static int remoteDispatchStoragePoolDelete (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_delete_args *args, void *ret); +static int remoteDispatchStoragePoolDestroy (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_destroy_args *args, void *ret); +static int remoteDispatchStoragePoolDumpXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_dump_xml_args *args, remote_storage_pool_dump_xml_ret *ret); +static int remoteDispatchStoragePoolGetAutostart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_get_autostart_args *args, remote_storage_pool_get_autostart_ret *ret); +static int remoteDispatchStoragePoolGetInfo (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_get_info_args *args, remote_storage_pool_get_info_ret *ret); +static int remoteDispatchStoragePoolListVolumes (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_list_volumes_args *args, remote_storage_pool_list_volumes_ret *ret); +static int remoteDispatchStoragePoolLookupByName (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_lookup_by_name_args *args, remote_storage_pool_lookup_by_name_ret *ret); +static int remoteDispatchStoragePoolLookupByUuid (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_lookup_by_uuid_args *args, remote_storage_pool_lookup_by_uuid_ret *ret); +static int remoteDispatchStoragePoolLookupByVolume (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_lookup_by_volume_args *args, remote_storage_pool_lookup_by_volume_ret *ret); +static int remoteDispatchStoragePoolNumOfVolumes (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_num_of_volumes_args *args, remote_storage_pool_num_of_volumes_ret *ret); +static int remoteDispatchStoragePoolRefresh (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_refresh_args *args, void *ret); +static int remoteDispatchStoragePoolSetAutostart (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_set_autostart_args *args, void *ret); +static int remoteDispatchStoragePoolUndefine (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_pool_undefine_args *args, void *ret); +static int remoteDispatchStorageVolCreateXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_create_xml_args *args, remote_storage_vol_create_xml_ret *ret); +static int remoteDispatchStorageVolDelete (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_delete_args *args, void *ret); +static int remoteDispatchStorageVolDumpXml (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_dump_xml_args *args, remote_storage_vol_dump_xml_ret *ret); +static int remoteDispatchStorageVolGetInfo (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_get_info_args *args, remote_storage_vol_get_info_ret *ret); +static int remoteDispatchStorageVolGetPath (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_get_path_args *args, remote_storage_vol_get_path_ret *ret); +static int remoteDispatchStorageVolLookupByKey (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_lookup_by_key_args *args, remote_storage_vol_lookup_by_key_ret *ret); +static int remoteDispatchStorageVolLookupByName (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_lookup_by_name_args *args, remote_storage_vol_lookup_by_name_ret *ret); +static int remoteDispatchStorageVolLookupByPath (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_storage_vol_lookup_by_path_args *args, remote_storage_vol_lookup_by_path_ret *ret); +static int remoteDispatchSupportsFeature (struct qemud_server *server, struct qemud_client *client, remote_error *err, remote_supports_feature_args *args, remote_supports_feature_ret *ret); diff --git a/qemud/remote_generate_stubs.pl b/qemud/remote_generate_stubs.pl --- a/qemud/remote_generate_stubs.pl +++ b/qemud/remote_generate_stubs.pl @@ -100,7 +100,7 @@ elsif ($opt_p) { elsif ($opt_p) { my @keys = sort (keys %calls); foreach (@keys) { - print "static int remoteDispatch$calls{$_}->{ProcName} (struct qemud_server *server, struct qemud_client *client, remote_message_header *req, $calls{$_}->{args} *args, $calls{$_}->{ret} *ret);\n"; + print "static int remoteDispatch$calls{$_}->{ProcName} (struct qemud_server *server, struct qemud_client *client, remote_error *err, $calls{$_}->{args} *args, $calls{$_}->{ret} *ret);\n"; } } diff --git a/src/domain_conf.c b/src/domain_conf.c --- a/src/domain_conf.c +++ b/src/domain_conf.c @@ -482,8 +482,12 @@ void virDomainRemoveInactive(virDomainOb memmove(doms->objs + i, doms->objs + i + 1, sizeof(*(doms->objs)) * (doms->count - (i + 1))); - if (VIR_REALLOC_N(doms->objs, doms->count - 1) < 0) { - ; /* Failure to reduce memory allocation isn't fatal */ + if (doms->count > 1) { + if (VIR_REALLOC_N(doms->objs, doms->count - 1) < 0) { + ; /* Failure to reduce memory allocation isn't fatal */ + } + } else { + VIR_FREE(doms->objs); } doms->count--; -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] Bridge network for VM using libvirt library
by Shanmuga Rajan 20 Oct '08

20 Oct '08

Hi I trying to create an application to manage virtual machines using libvirt library. Currently i am focusing with KVM hypervisor and bridge networking. I face two issues which i cant find a solution.... First issue: When i tried to reboot a virtual machine (using virDomain's reboot fn). I got exception message that there was no support in the hypervisor for reboot. is it true that we cant reboot a KVM based VM? Second issue: When i tried to setup a bridge network for KVM based VM. I got error message like this .. "QEMU quit during console startup bind() failed" I have listed below my steps which i tried setup bridge network. On Dom0 =========== <<<< brctl addbr br0 ifconfig eth0 0.0.0.0 brctl addif br0 eth0 ifconfig br0 192.168.1.82 netmask 255.255.255.0 up route add -net 192.168.1.0 netmask 255.255.255.0 br0 route add default gw 192.168.1.1 br0 <<<< ** dom0 IP 192.168.1.82 after that i checked the network connection of the Dom0.. it was fine. ifconfig was fine. then i created tun/tap device like given in the following link http://wiki.centos.org/HowTos/KVM#head-c02a0b33e7949b0bc3b151ac6e0bdfb91b6b… <<<<< sudo tunctl -b -u john sudo ifconfig tap1 up sudo brctl addif br0 tap1 export SDL_VIDEO_X11_DGAMOUSE=0 sudo iptables -I INPUT -i br0 -j ACCEPT <<<<< then i started to define vm like this... <domain type="kvm"> <name>test82</name> <uuid>e5520db4-ad8a-38c3-b9d9-4e3c7a1052dc</uuid> <memory>131072</memory> <vcpu>1</vcpu> <on_poweroff>destroy</on_poweroff> <os><type arch="i686">hvm</type> <boot dev="hd"/> </os> <clock sync="localtime"/> <features> <pae/> <acpi/> <apic/> </features> <devices> <emulator>/usr/bin/qemu-kvm</emulator> <disk type="file" device="disk"> <source file="/dev/FluidVM_grp/Windows_NT_2003_121560222596"/> <target dev="hda"/> </disk> <interface type="bridge"> <source bridge="br0"/> </interface> <interface type="bridge"> <source bridge="br0"/> <target dev="tap1"/> <mac address="00:16:3e:8f:ca:4b" /> </interface> <graphics type="vnc" port="5900" listen="0.0.0.0"/> </devices> </domain> is anything i am missing in setting up the bridge network? Thanks and Regards, -- Shan

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[libvirt] xen+ssh
by deface 20 Oct '08

20 Oct '08

Trying to connect to remote host via ssh. keys work fine but get this -- *Trace - * Unable to open connection to hypervisor URI 'xen+ssh://root@remote.boxdomain.com/': <class 'libvirt.libvirtError'> virConnectOpenAuth() failed socket closed unexpectedly Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/connection.py", line 430, in _open_thread None], flags) File "/usr/lib/python2.5/site-packages/libvirt.py", line 98, in openAuth if ret is None:raise libvirtError('virConnectOpenAuth() failed') libvirtError: virConnectOpenAuth() failed socket closed unexpectedly *Remote Log - * Oct 19 20:12:09 zeus sshd[1332]: Accepted publickey for root from x.x.x.x port 52555 ssh2 Oct 19 20:12:10 zeus sshd[1336]: pam_unix(sshd:session): session opened for user root by (uid=0) not sure where to go - any way to enable verbose/debug logging? deface

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[libvirt] [PATCH] ALL_LINGUAS: remove "no", now that it's superseded by np.po
by Jim Meyering 20 Oct '08

20 Oct '08

Without the first change below, "make distcheck" would fail due to the absence of po/no.po. But that file was deliberately removed, because np.po supersedes it. I've just committed this first change. [however, see below it] >From 0ebd43afa961b6a1b0d5676920c2109d8adae56c Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Sun, 19 Oct 2008 11:34:22 +0200 Subject: [PATCH] ALL_LINGUAS: remove "no", now that it's superseded by np.po * configure.in: Remove "no" from hard-coded list. --- ChangeLog | 5 +++++ configure.in | 2 +- 2 files changed, 6 insertions(+), 1 deletions(-) diff --git a/ChangeLog b/ChangeLog index 6b056d6..cf455ac 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2008-10-19 Jim Meyering <meyering(a)redhat.com> + + ALL_LINGUAS: remove "no", now that it's superseded by np.po + * configure.in: Remove "no" from hard-coded list. + Fri Oct 17 14:30:48 CEST 2008 Daniel Veillard <veillard(a)redhat.com> * src/qemu_driver.c: add scsi/virtio hotplug support for KVM diff --git a/configure.in b/configure.in index 9be3fec..54f1fe1 100644 --- a/configure.in +++ b/configure.in @@ -1015,7 +1015,7 @@ if test -d po then ALL_LINGUAS=`(cd po > /dev/null && ls *.po) | sed 's+\.po$++'` else - ALL_LINGUAS="af am ar as be bg bn_IN bn ca cs cy da de el en_GB es et eu_ES fa fi fr gl gu he hi hr hu hy id is it ja ka kn ko ku lo lt lv mk ml mr ms my nb nl nn no nso or pa pl pt_BR pt ro ru si sk sl sq sr@latin sr sv ta te th tr uk ur vi zh_CN zh_TW zu" + ALL_LINGUAS="af am ar as be bg bn_IN bn ca cs cy da de el en_GB es et eu_ES fa fi fr gl gu he hi hr hu hy id is it ja ka kn ko ku lo lt lv mk ml mr ms my nb nl nn nso or pa pl pt_BR pt ro ru si sk sl sq sr@latin sr sv ta te th tr uk ur vi zh_CN zh_TW zu" fi dnl Extra link-time flags for Cygwin. -- 1.6.0.2.554.g3041b ============================================================================ However, there is no need to maintain that hard-coded list of .po files. Here's a proposed patch to do away with it: diff --git a/configure.in b/configure.in index 54f1fe1..32fffb2 100644 --- a/configure.in +++ b/configure.in @@ -1011,12 +1011,7 @@ AM_CONDITIONAL([WITH_LIBVIRTD],[test "x$with_libvirtd" = "xyes"]) dnl Check for gettext AM_GNU_GETTEXT_VERSION([0.14.1]) AM_GNU_GETTEXT([external]) -if test -d po -then - ALL_LINGUAS=`(cd po > /dev/null && ls *.po) | sed 's+\.po$++'` -else - ALL_LINGUAS="af am ar as be bg bn_IN bn ca cs cy da de el en_GB es et eu_ES fa fi fr gl gu he hi hr hu hy id is it ja ka kn ko ku lo lt lv mk ml mr ms my nb nl nn nso or pa pl pt_BR pt ro ru si sk sl sq sr@latin sr sv ta te th tr uk ur vi zh_CN zh_TW zu" -fi +ALL_LINGUAS=`(cd "$srcdir/po" > /dev/null && ls *.po) | sed 's+\.po$++'` dnl Extra link-time flags for Cygwin. dnl Copied from libxml2 configure.in, but I removed mingw changes

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