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[libvirt] [PATCH] storage: conf: Fix memory leak in encryption parsing
by Cole Robinson 03 Nov '09

03 Nov '09

Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/storage_encryption_conf.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/conf/storage_encryption_conf.c b/src/conf/storage_encryption_conf.c index b97b989..a329622 100644 --- a/src/conf/storage_encryption_conf.c +++ b/src/conf/storage_encryption_conf.c @@ -112,6 +112,7 @@ virStorageEncryptionSecretParse(virConnectPtr conn, xmlXPathContextPtr ctxt, uuidstr); goto cleanup; } + VIR_FREE(uuidstr); } else { virStorageReportError(conn, VIR_ERR_XML_ERROR, "%s", _("missing volume encryption uuid")); -- 1.6.5.1

2 2

[libvirt] [PATCH] Various error reporting fixes
by Cole Robinson 03 Nov '09

03 Nov '09

- Don't duplicate SystemError - Use proper error code in domain_conf - Fix a broken error call in qemu_conf - Don't use VIR_ERR_ERROR in security driver (isn't a valid code in this case) Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/domain_conf.c | 2 +- src/conf/storage_conf.c | 6 +++--- src/qemu/qemu_conf.c | 6 ++---- src/qemu/qemu_driver.c | 2 +- src/security/security_apparmor.c | 30 +++++++++++++++--------------- src/security/security_driver.c | 2 +- src/security/security_selinux.c | 10 +++++----- src/xen/xen_hypervisor.c | 4 +--- tests/cpuset | 2 +- 9 files changed, 30 insertions(+), 34 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index ba6b28d..ca141e1 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -3705,7 +3705,7 @@ virDomainCpuSetParse(virConnectPtr conn, const char **str, char sep, return (ret); parse_error: - virDomainReportError(conn, VIR_ERR_XEN_CALL, + virDomainReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("topology cpuset syntax error")); return (-1); } diff --git a/src/conf/storage_conf.c b/src/conf/storage_conf.c index 2924a0d..065cd04 100644 --- a/src/conf/storage_conf.c +++ b/src/conf/storage_conf.c @@ -1593,9 +1593,9 @@ virStoragePoolObjSaveDef(virConnectPtr conn, char path[PATH_MAX]; if ((err = virFileMakePath(driver->configDir))) { - virStorageReportError(conn, err, - _("cannot create config directory %s"), - driver->configDir); + virReportSystemError(conn, err, + _("cannot create config directory %s"), + driver->configDir); return -1; } diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 59873d7..71b3550 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1106,10 +1106,8 @@ int qemudExtractVersion(virConnectPtr conn, return -1; if (stat(binary, &sb) < 0) { - char ebuf[1024]; - qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, - _("Cannot find QEMU binary %s: %s"), binary, - virStrerror(errno, ebuf, sizeof ebuf)); + virReportSystemError(conn, errno, + _("Cannot find QEMU binary %s"), binary); return -1; } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 0470315..e8606c8 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1773,7 +1773,7 @@ static int qemuDomainSetHostdevOwnership(virConnectPtr conn, } return 0; #else - qemudReportError(conn, NULL, NULL, "%s", + qemudReportError(conn, NULL, NULL, VIR_ERR_NO_SUPPORT, "%s", _("unable to set host device ownership on this platform")); return -1; #endif diff --git a/src/security/security_apparmor.c b/src/security/security_apparmor.c index 16de0f2..6db51cd 100644 --- a/src/security/security_apparmor.c +++ b/src/security/security_apparmor.c @@ -112,7 +112,7 @@ profile_status_file(const char *str) if (snprintf(profile, PATH_MAX, "%s/%s", APPARMOR_DIR "/libvirt", str) > PATH_MAX - 1) { - virSecurityReportError(NULL, VIR_ERR_ERROR, + virSecurityReportError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("profile name exceeds maximum length")); } @@ -204,7 +204,7 @@ load_profile(virConnectPtr conn, const char *profile, virDomainObjPtr vm, if (errno == EINTR) goto rewait; - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("Unexpected exit status from virt-aa-helper " "%d pid %lu"), WEXITSTATUS(status), (unsigned long)child); @@ -265,7 +265,7 @@ use_apparmor(void) if ((len = readlink("/proc/self/exe", libvirt_daemon, PATH_MAX - 1)) < 0) { - virSecurityReportError(NULL, VIR_ERR_ERROR, + virSecurityReportError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("could not find libvirtd")); return rc; } @@ -289,13 +289,13 @@ AppArmorSecurityDriverProbe(void) /* see if template file exists */ if (snprintf(template, PATH_MAX, "%s/TEMPLATE", APPARMOR_DIR "/libvirt") > PATH_MAX - 1) { - virSecurityReportError(NULL, VIR_ERR_ERROR, + virSecurityReportError(NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("template too large")); return SECURITY_DRIVER_DISABLE; } if (!virFileExists(template)) { - virSecurityReportError(NULL, VIR_ERR_ERROR, + virSecurityReportError(NULL, VIR_ERR_INTERNAL_ERROR, _("template \'%s\' does not exist"), template); return SECURITY_DRIVER_DISABLE; } @@ -326,7 +326,7 @@ AppArmorGenSecurityLabel(virConnectPtr conn, virDomainObjPtr vm) if ((vm->def->seclabel.label) || (vm->def->seclabel.model) || (vm->def->seclabel.imagelabel)) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("security label already defined for VM")); return rc; @@ -338,7 +338,7 @@ AppArmorGenSecurityLabel(virConnectPtr conn, virDomainObjPtr vm) /* if the profile is not already loaded, then load one */ if (profile_loaded(profile_name) < 0) { if (load_profile(conn, profile_name, vm, NULL) < 0) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot generate AppArmor profile " "\'%s\'"), profile_name); goto clean; @@ -395,13 +395,13 @@ AppArmorGetSecurityLabel(virConnectPtr conn, if (virStrcpy(sec->label, profile_name, VIR_SECURITY_LABEL_BUFLEN) == NULL) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("error copying profile name")); goto clean; } if ((sec->enforcing = profile_status(profile_name, 1)) < 0) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s", _("error calling profile_status()")); goto clean; } @@ -424,7 +424,7 @@ AppArmorRestoreSecurityLabel(virConnectPtr conn, virDomainObjPtr vm) if (secdef->imagelabel) { if ((rc = remove_profile(secdef->label)) != 0) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("could not remove profile for \'%s\'"), secdef->label); } @@ -450,7 +450,7 @@ AppArmorSetSecurityLabel(virConnectPtr conn, return rc; if (STRNEQ(drv->name, secdef->model)) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("security label driver mismatch: " "\'%s\' model configured for domain, but " "hypervisor driver is \'%s\'."), @@ -460,7 +460,7 @@ AppArmorSetSecurityLabel(virConnectPtr conn, } if (aa_change_profile(profile_name) < 0) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("error calling aa_change_profile()")); goto clean; } @@ -490,7 +490,7 @@ AppArmorRestoreSecurityImageLabel(virConnectPtr conn, /* Update the profile only if it is loaded */ if (profile_loaded(secdef->imagelabel) >= 0) { if (load_profile(conn, secdef->imagelabel, vm, NULL) < 0) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot update AppArmor profile " "\'%s\'"), secdef->imagelabel); @@ -520,7 +520,7 @@ AppArmorSetSecurityImageLabel(virConnectPtr conn, if (secdef->imagelabel) { /* if the device doesn't exist, error out */ if (!virFileExists(disk->src)) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("\'%s\' does not exist"), disk->src); return rc; } @@ -531,7 +531,7 @@ AppArmorSetSecurityImageLabel(virConnectPtr conn, /* update the profile only if it is loaded */ if (profile_loaded(secdef->imagelabel) >= 0) { if (load_profile(conn, secdef->imagelabel, vm, disk) < 0) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot update AppArmor profile " "\'%s\'"), secdef->imagelabel); diff --git a/src/security/security_driver.c b/src/security/security_driver.c index 43d52b1..4e6172d 100644 --- a/src/security/security_driver.c +++ b/src/security/security_driver.c @@ -123,7 +123,7 @@ virSecurityDriverSetDOI(virConnectPtr conn, const char *doi) { if (strlen(doi) >= VIR_SECURITY_DOI_BUFLEN) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("%s: DOI \'%s\' is " "longer than the maximum allowed length of %d"), __func__, doi, VIR_SECURITY_DOI_BUFLEN - 1); diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c index 6a03af7..0e31077 100644 --- a/src/security/security_selinux.c +++ b/src/security/security_selinux.c @@ -189,13 +189,13 @@ SELinuxGenSecurityLabel(virConnectPtr conn, vm->def->seclabel.label = SELinuxGenNewContext(default_domain_context, mcs); if (! vm->def->seclabel.label) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot generate selinux context for %s"), mcs); goto err; } vm->def->seclabel.imagelabel = SELinuxGenNewContext(default_image_context, mcs); if (! vm->def->seclabel.imagelabel) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("cannot generate selinux context for %s"), mcs); goto err; } @@ -285,9 +285,9 @@ SELinuxGetSecurityLabel(virConnectPtr conn, } if (strlen((char *) ctx) >= VIR_SECURITY_LABEL_BUFLEN) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("security label exceeds " - "maximum lenth: %d"), + "maximum length: %d"), VIR_SECURITY_LABEL_BUFLEN - 1); return -1; } @@ -647,7 +647,7 @@ SELinuxSetSecurityLabel(virConnectPtr conn, int i; if (!STREQ(drv->name, secdef->model)) { - virSecurityReportError(conn, VIR_ERR_ERROR, + virSecurityReportError(conn, VIR_ERR_INTERNAL_ERROR, _("security label driver mismatch: " "'%s' model configured for domain, but " "hypervisor driver is '%s'."), diff --git a/src/xen/xen_hypervisor.c b/src/xen/xen_hypervisor.c index 3aa3c30..e107d1e 100644 --- a/src/xen/xen_hypervisor.c +++ b/src/xen/xen_hypervisor.c @@ -2298,9 +2298,7 @@ get_cpu_flags(virConnectPtr conn, const char **hvm, int *pae, int *longmode) if ((fd = open("/dev/cpu/self/cpuid", O_RDONLY)) == -1 || pread(fd, &regs, sizeof(regs), 0) != sizeof(regs)) { - char ebuf[1024]; - virXenError(conn, VIR_ERR_SYSTEM_ERROR, - "couldn't read CPU flags: %s", virStrerror(errno, ebuf, sizeof ebuf)); + virReportSystemError(conn, errno, "%s", _("could not read CPU flags")); goto out; } diff --git a/tests/cpuset b/tests/cpuset index 9f43269..89c19e0 100755 --- a/tests/cpuset +++ b/tests/cpuset @@ -41,7 +41,7 @@ sed "s/vcpu>/vcpu cpuset='aaa'>/" xml > xml-invalid || fail=1 $abs_top_builddir/tools/virsh --connect test:///default define xml-invalid > out 2>&1 && fail=1 cat <<\EOF > exp || fail=1 error: Failed to define domain from xml-invalid -error: failed Xen syscall topology cpuset syntax error +error: internal error topology cpuset syntax error EOF compare exp out || fail=1 -- 1.6.5.1

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[libvirt] [PATCH v2] Improve error reporting for virConnectGetHostname calls
by Cole Robinson 03 Nov '09

03 Nov '09

All drivers have copy + pasted inadequate error reporting which wraps util.c:virGetHostname. Move all error reporting to this function, and improve what we report. Changes from v1: Drop the driver wrappers around virGetHostname. This means we still need to keep the new conn argument to virGetHostname, but I think it's worth it. Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- daemon/libvirtd.c | 7 +++---- src/lxc/lxc_driver.c | 16 +--------------- src/qemu/qemu_driver.c | 22 ++-------------------- src/test/test_driver.c | 16 +--------------- src/uml/uml_driver.c | 17 +---------------- src/util/util.c | 18 +++++++++++++++--- src/util/util.h | 2 +- src/vbox/vbox_tmpl.c | 16 +--------------- src/xen/xen_driver.c | 20 +------------------- src/xen/xend_internal.c | 6 ++---- tools/virsh.c | 2 +- 11 files changed, 29 insertions(+), 113 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 0615cd2..322a320 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -993,11 +993,10 @@ static int qemudNetworkInit(struct qemud_server *server) { if (!mdns_name) { char groupname[64], *localhost, *tmp; /* Extract the host part of the potentially FQDN */ - localhost = virGetHostname(); - if (localhost == NULL) { - virReportOOMError(NULL); + localhost = virGetHostname(NULL); + if (localhost == NULL) goto cleanup; - } + if ((tmp = strchr(localhost, '.'))) *tmp = '\0'; snprintf(groupname, sizeof(groupname)-1, "Virtualization Host %s", localhost); diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 47e59f6..05fc48d 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -2027,20 +2027,6 @@ cleanup: return ret; } -static char *lxcGetHostname (virConnectPtr conn) -{ - char *result; - - result = virGetHostname(); - if (result == NULL) { - virReportSystemError (conn, errno, - "%s", _("failed to determine host name")); - return NULL; - } - /* Caller frees this string. */ - return result; -} - static int lxcFreezeContainer(lxc_driver_t *driver, virDomainObjPtr vm) { int timeout = 1000; /* In milliseconds */ @@ -2258,7 +2244,7 @@ static virDriver lxcDriver = { NULL, /* supports_feature */ NULL, /* type */ lxcVersion, /* version */ - lxcGetHostname, /* getHostname */ + virGetHostname, /* getHostname */ NULL, /* getMaxVcpus */ nodeGetInfo, /* nodeGetInfo */ lxcGetCapabilities, /* getCapabilities */ diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 437a1b4..0470315 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -2610,21 +2610,6 @@ cleanup: return ret; } -static char * -qemudGetHostname (virConnectPtr conn) -{ - char *result; - - result = virGetHostname(); - if (result == NULL) { - virReportSystemError (conn, errno, - "%s", _("failed to determine host name")); - return NULL; - } - /* Caller frees this string. */ - return result; -} - static int qemudListDomains(virConnectPtr conn, int *ids, int nids) { struct qemud_driver *driver = conn->privateData; int n; @@ -6248,11 +6233,8 @@ qemudDomainMigratePrepare2 (virConnectPtr dconn, if (port == QEMUD_MIGRATION_NUM_PORTS) port = 0; /* Get hostname */ - if ((hostname = virGetHostname()) == NULL) { - virReportSystemError (dconn, errno, - "%s", _("failed to determine host name")); + if ((hostname = virGetHostname(dconn)) == NULL) goto cleanup; - } /* XXX this really should have been a properly well-formed * URI, but we can't add in tcp:// now without breaking @@ -7084,7 +7066,7 @@ static virDriver qemuDriver = { qemudSupportsFeature, /* supports_feature */ qemudGetType, /* type */ qemudGetVersion, /* version */ - qemudGetHostname, /* getHostname */ + virGetHostname, /* getHostname */ qemudGetMaxVCPUs, /* getMaxVcpus */ nodeGetInfo, /* nodeGetInfo */ qemudGetCapabilities, /* getCapabilities */ diff --git a/src/test/test_driver.c b/src/test/test_driver.c index 7e19072..31b5ad3 100644 --- a/src/test/test_driver.c +++ b/src/test/test_driver.c @@ -1023,20 +1023,6 @@ static int testGetVersion(virConnectPtr conn ATTRIBUTE_UNUSED, return (0); } -static char *testGetHostname (virConnectPtr conn) -{ - char *result; - - result = virGetHostname(); - if (result == NULL) { - virReportSystemError(conn, errno, - "%s", _("cannot lookup hostname")); - return NULL; - } - /* Caller frees this string. */ - return result; -} - static int testGetMaxVCPUs(virConnectPtr conn ATTRIBUTE_UNUSED, const char *type ATTRIBUTE_UNUSED) { @@ -4674,7 +4660,7 @@ static virDriver testDriver = { NULL, /* supports_feature */ NULL, /* type */ testGetVersion, /* version */ - testGetHostname, /* getHostname */ + virGetHostname, /* getHostname */ testGetMaxVCPUs, /* getMaxVcpus */ testNodeGetInfo, /* nodeGetInfo */ testGetCapabilities, /* getCapabilities */ diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c index fac3c4c..2455b92 100644 --- a/src/uml/uml_driver.c +++ b/src/uml/uml_driver.c @@ -1146,21 +1146,6 @@ cleanup: return ret; } -static char * -umlGetHostname (virConnectPtr conn) -{ - char *result; - - result = virGetHostname(); - if (result == NULL) { - virReportSystemError(conn, errno, - "%s", _("cannot lookup hostname")); - return NULL; - } - /* Caller frees this string. */ - return result; -} - static int umlListDomains(virConnectPtr conn, int *ids, int nids) { struct uml_driver *driver = conn->privateData; int n; @@ -1790,7 +1775,7 @@ static virDriver umlDriver = { NULL, /* supports_feature */ umlGetType, /* type */ umlGetVersion, /* version */ - umlGetHostname, /* getHostname */ + virGetHostname, /* getHostname */ NULL, /* getMaxVcpus */ nodeGetInfo, /* nodeGetInfo */ umlGetCapabilities, /* getCapabilities */ diff --git a/src/util/util.c b/src/util/util.c index 08070da..853d3a0 100644 --- a/src/util/util.c +++ b/src/util/util.c @@ -1805,30 +1805,42 @@ int virDiskNameToIndex(const char *name) { #define AI_CANONIDN 0 #endif -char *virGetHostname(void) +char *virGetHostname(virConnectPtr conn) { int r; char hostname[HOST_NAME_MAX+1], *result; struct addrinfo hints, *info; r = gethostname (hostname, sizeof(hostname)); - if (r == -1) + if (r == -1) { + virReportSystemError (conn, errno, + "%s", _("failed to determine host name")); return NULL; + } NUL_TERMINATE(hostname); memset(&hints, 0, sizeof(hints)); hints.ai_flags = AI_CANONNAME|AI_CANONIDN; hints.ai_family = AF_UNSPEC; r = getaddrinfo(hostname, NULL, &hints, &info); - if (r != 0) + if (r != 0) { + ReportError(conn, VIR_ERR_INTERNAL_ERROR, + _("getaddrinfo failed for '%s': %s"), + hostname, gai_strerror(r)); return NULL; + } if (info->ai_canonname == NULL) { + ReportError(conn, VIR_ERR_INTERNAL_ERROR, + "%s", _("could not determine canonical host name")); freeaddrinfo(info); return NULL; } /* Caller frees this string. */ result = strdup (info->ai_canonname); + if (!result) + virReportOOMError(conn); + freeaddrinfo(info); return result; } diff --git a/src/util/util.h b/src/util/util.h index 3ef26e6..f4e395e 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -222,7 +222,7 @@ static inline int getuid (void) { return 0; } static inline int getgid (void) { return 0; } #endif -char *virGetHostname(void); +char *virGetHostname(virConnectPtr conn); int virKillProcess(pid_t pid, int sig); diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c index aecda23..c6305ac 100644 --- a/src/vbox/vbox_tmpl.c +++ b/src/vbox/vbox_tmpl.c @@ -591,20 +591,6 @@ static int vboxGetVersion(virConnectPtr conn, unsigned long *version) { return 0; } -static char *vboxGetHostname(virConnectPtr conn) { - char *hostname; - - /* the return string should be freed by caller */ - hostname = virGetHostname(); - if (hostname == NULL) { - vboxError(conn, VIR_ERR_INTERNAL_ERROR,"%s", - "failed to determine host name"); - return NULL; - } - - return hostname; -} - static int vboxGetMaxVcpus(virConnectPtr conn, const char *type ATTRIBUTE_UNUSED) { vboxGlobalData *data = conn->privateData; PRUint32 maxCPUCount = 0; @@ -6402,7 +6388,7 @@ virDriver NAME(Driver) = { NULL, /* supports_feature */ NULL, /* type */ vboxGetVersion, /* version */ - vboxGetHostname, /* getHostname */ + virGetHostname, /* getHostname */ vboxGetMaxVcpus, /* getMaxVcpus */ nodeGetInfo, /* nodeGetInfo */ vboxGetCapabilities, /* getCapabilities */ diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c index f2744b0..6dc4ac0 100644 --- a/src/xen/xen_driver.c +++ b/src/xen/xen_driver.c @@ -478,24 +478,6 @@ xenUnifiedGetVersion (virConnectPtr conn, unsigned long *hvVer) return -1; } -/* NB: Even if connected to the proxy, we're still on the - * same machine. - */ -static char * -xenUnifiedGetHostname (virConnectPtr conn) -{ - char *result; - - result = virGetHostname(); - if (result == NULL) { - virReportSystemError(conn, errno, - "%s", _("cannot lookup hostname")); - return NULL; - } - /* Caller frees this string. */ - return result; -} - static int xenUnifiedGetMaxVcpus (virConnectPtr conn, const char *type) { @@ -1659,7 +1641,7 @@ static virDriver xenUnifiedDriver = { xenUnifiedSupportsFeature, /* supports_feature */ xenUnifiedType, /* type */ xenUnifiedGetVersion, /* version */ - xenUnifiedGetHostname, /* getHostname */ + virGetHostname, /* getHostname */ xenUnifiedGetMaxVcpus, /* getMaxVcpus */ xenUnifiedNodeGetInfo, /* nodeGetInfo */ xenUnifiedGetCapabilities, /* getCapabilities */ diff --git a/src/xen/xend_internal.c b/src/xen/xend_internal.c index d3ab019..9080754 100644 --- a/src/xen/xend_internal.c +++ b/src/xen/xend_internal.c @@ -4347,11 +4347,9 @@ xenDaemonDomainMigratePrepare (virConnectPtr dconn, * deallocates this string. */ if (uri_in == NULL) { - *uri_out = virGetHostname(); - if (*uri_out == NULL) { - virReportOOMError(dconn); + *uri_out = virGetHostname(dconn); + if (*uri_out == NULL) return -1; - } } return 0; diff --git a/tools/virsh.c b/tools/virsh.c index 6b93405..3c668da 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -524,7 +524,7 @@ cmdRunConsole(vshControl *ctl, virDomainPtr dom) char *thatHost = NULL; char *thisHost = NULL; - if (!(thisHost = virGetHostname())) { + if (!(thisHost = virGetHostname(ctl->conn))) { vshError(ctl, "%s", _("Failed to get local hostname")); goto cleanup; } -- 1.6.5.1

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[libvirt] [PATCH] Make monitor type (miimon/arpmon) optional in bond xml.
by Laine Stump 03 Nov '09

03 Nov '09

Lack of one of these in the live xml output was causing the parse to fail. --- src/conf/interface_conf.c | 35 +++++++++++++---------------------- 1 files changed, 13 insertions(+), 22 deletions(-) diff --git a/src/conf/interface_conf.c b/src/conf/interface_conf.c index 31af957..31abf12 100644 --- a/src/conf/interface_conf.c +++ b/src/conf/interface_conf.c @@ -631,13 +631,17 @@ static int virInterfaceDefParseBond(virConnectPtr conn, virInterfaceDefPtr def, xmlXPathContextPtr ctxt) { xmlNodePtr node; - int ret = 0; + int ret = -1; unsigned long tmp; def->data.bond.mode = virInterfaceDefParseBondMode(conn, ctxt); if (def->data.bond.mode < 0) goto error; + ret = virInterfaceDefParseBondItfs(conn, def, ctxt); + if (ret != 0) + goto error; + node = virXPathNode(conn, "./miimon[1]", ctxt); if (node != NULL) { def->data.bond.monit = VIR_INTERFACE_BOND_MONIT_MII; @@ -669,15 +673,13 @@ virInterfaceDefParseBond(virConnectPtr conn, virInterfaceDefPtr def, } def->data.bond.carrier = virInterfaceDefParseBondMiiCarrier(conn, ctxt); - if (def->data.bond.carrier < 0) + if (def->data.bond.carrier < 0) { + ret = -1; goto error; + } - ret = virInterfaceDefParseBondItfs(conn, def, ctxt); + } else if ((node = virXPathNode(conn, "./arpmon[1]", ctxt)) != NULL) { - goto done; - } - node = virXPathNode(conn, "./arpmon[1]", ctxt); - if (node != NULL) { def->data.bond.monit = VIR_INTERFACE_BOND_MONIT_ARP; ret = virXPathULong(conn, "string(./arpmon/@interval)", ctxt, &tmp); @@ -693,23 +695,17 @@ virInterfaceDefParseBond(virConnectPtr conn, virInterfaceDefPtr def, if (def->data.bond.target == NULL) { virInterfaceReportError(conn, VIR_ERR_XML_ERROR, "%s", _("bond interface arpmon target missing")); + ret = -1; goto error; } def->data.bond.validate = virInterfaceDefParseBondArpValid(conn, ctxt); - if (def->data.bond.validate < 0) + if (def->data.bond.validate < 0) { + ret = -1; goto error; - - ret = virInterfaceDefParseBondItfs(conn, def, ctxt); - - goto done; + } } - - virInterfaceReportError(conn, VIR_ERR_XML_ERROR, - "%s", _("bond interface need miimon or arpmon element")); error: - ret = -1; -done: return(ret); } @@ -1109,11 +1105,6 @@ virInterfaceBondDefFormat(virConnectPtr conn, virBufferPtr buf, else if (def->data.bond.validate == VIR_INTERFACE_BOND_ARP_ALL) virBufferAddLit(buf, " validate='all'"); virBufferAddLit(buf, "/>\n"); - } else { - virInterfaceReportError(conn, VIR_ERR_INTERNAL_ERROR, - _("bond monitoring type %d unknown"), - def->data.bond.monit); - return(-1); } for (i = 0;i < def->data.bond.nbItf;i++) { if (virInterfaceBareDevDefFormat(conn, buf, def->data.bond.itf[i]) < 0) -- 1.6.5.15.gc274d

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[libvirt] [PATCH 0/3] IPv6 / multi address / report live config in virInterface
by laine＠laine.org 03 Nov '09

03 Nov '09

This is the 2nd iteration of this patchset incorporating danpb's suggestions. Along with a couple other minor things, the type attribute is again a required attribute, and netcf support will be omitted in the build unless you have netcf-devel-0.1.3 or greater. Since there is no netcf-devel-0.1.3 yet, I tested this by changing the appropriate strings to 0.1.2. 0.1.3 will be released "soon" (I want to try and get IPv6 address reporting in before lutter cuts another release). I just wanted to get the patches to the list early to get some visual review in case I screwed up anything new ;-) Note that (unless you're building/installing netcf from the head of git) if you try to fake out the version of netcf yourself you'll get runtime errors from virInterfaceGetXMLDesc (iface-dumpxml) due to there being no "type" attribute in the interface xml.

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[libvirt] [PATCH] give up python interpreter lock before calling cb
by Dan Kenigsberg 03 Nov '09

03 Nov '09

suggested by danpb on irc --- python/libvirt-override.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/python/libvirt-override.c b/python/libvirt-override.c index 5d24fd2..53e36c0 100644 --- a/python/libvirt-override.c +++ b/python/libvirt-override.c @@ -2355,7 +2355,9 @@ libvirt_virEventInvokeHandleCallback(PyObject *self ATTRIBUTE_UNUSED, opaque = (void *) PyvirVoidPtr_Get(py_opaque); if(cb) + LIBVIRT_BEGIN_ALLOW_THREADS cb (watch, fd, event, opaque); + LIBVIRT_END_ALLOW_THREADS return VIR_PY_INT_SUCCESS; } @@ -2379,7 +2381,9 @@ libvirt_virEventInvokeTimeoutCallback(PyObject *self ATTRIBUTE_UNUSED, cb = (virEventTimeoutCallback) PyvirEventTimeoutCallback_Get(py_f); opaque = (void *) PyvirVoidPtr_Get(py_opaque); if(cb) + LIBVIRT_BEGIN_ALLOW_THREADS cb (timer, opaque); + LIBVIRT_END_ALLOW_THREADS return VIR_PY_INT_SUCCESS; } -- 1.6.2.5

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[libvirt] The 0.7.3 release schedule
by Daniel Veillard 03 Nov '09

03 Nov '09

Well, clearly we can't keep up with the current plan, we should be in freeze right now and there is an awful lot of patches on the list waiting for review and push. Let's try to push everything by this week-end and have next week as the testing and freeze time. Maybe we can squeeze everything in time, that would allow the release by the Friday 13th (unless we want to avoid that ;-) 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/

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[libvirt] [PATCH] Allow NULL mac address in virGetInterface.
by Laine Stump 03 Nov '09

03 Nov '09

There are places where an interface will not have a mac address, and netcf returns this as a NULL pointer rather than a pointer to an empty string. Rather than checking for this all over the place in libvirt, just save it in the virInterface object as an empty string. --- src/datatypes.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/src/datatypes.c b/src/datatypes.c index 89ad309..ecefc59 100644 --- a/src/datatypes.c +++ b/src/datatypes.c @@ -588,10 +588,15 @@ virInterfacePtr virGetInterface(virConnectPtr conn, const char *name, const char *mac) { virInterfacePtr ret = NULL; - if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (mac == NULL)) { + if ((!VIR_IS_CONNECT(conn)) || (name == NULL)) { virLibConnError(NULL, VIR_ERR_INVALID_ARG, __FUNCTION__); return(NULL); } + + /* a NULL mac from caller is okay. Treat it as blank */ + if (mac == NULL) + mac = ""; + virMutexLock(&conn->lock); ret = (virInterfacePtr) virHashLookup(conn->interfaces, name); -- 1.6.5.15.gc274d

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[libvirt] [PATCH] Remove redundant virFileDeletePID() call
by Chris Lalancette 03 Nov '09

03 Nov '09

qemudShutdownVMDaemon() calls qemudRemoveDomainStatus(), which then calls virFileDeletePID(). qemudShutdownVMDaemon() then unnecessarily calls virFileDeletePID() again. Remove this second usage of it, and also slightly refactor qemudRemoveDomainStatus() to VIR_WARN appropriate error messages. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- src/qemu/qemu_driver.c | 31 +++++++++---------------------- 1 files changed, 9 insertions(+), 22 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index fd064af..38fe19e 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -269,7 +269,7 @@ qemudRemoveDomainStatus(virConnectPtr conn, struct qemud_driver *driver, virDomainObjPtr vm) { - int rc = -1; + char ebuf[1024]; char *file = NULL; if (virAsprintf(&file, "%s/%s.xml", driver->stateDir, vm->def->name) < 0) { @@ -277,19 +277,14 @@ qemudRemoveDomainStatus(virConnectPtr conn, goto cleanup; } - if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR) { - qemudReportError(conn, vm, NULL, VIR_ERR_INTERNAL_ERROR, - _("Failed to unlink status file %s"), file); - goto cleanup; - } - - if(virFileDeletePid(driver->stateDir, vm->def->name)) - goto cleanup; + if (unlink(file) < 0 && errno != ENOENT && errno != ENOTDIR) + VIR_WARN(_("Failed to remove domain XML for %s: %s"), + vm->def->name, virStrerror(errno, buf, sizeof(ebuf))); + if (virFileDeletePid(driver->stateDir, vm->def->name) != 0) + VIR_WARN(_("Failed to remove PID file for %s: %s"), + vm->def->name, virStrerror(errno, ebuf, sizeof(ebuf))); - rc = 0; -cleanup: - VIR_FREE(file); - return rc; + return 0; } @@ -2224,15 +2219,7 @@ retry: vm->def->name); } - if (qemudRemoveDomainStatus(conn, driver, vm) < 0) { - VIR_WARN(_("Failed to remove domain status for %s"), - vm->def->name); - } - if ((ret = virFileDeletePid(driver->stateDir, vm->def->name)) != 0) { - char ebuf[1024]; - VIR_WARN(_("Failed to remove PID file for %s: %s"), - vm->def->name, virStrerror(errno, ebuf, sizeof ebuf)); - } + qemudRemoveDomainStatus(conn, driver, vm); vm->pid = -1; vm->def->id = -1; -- 1.6.0.6

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[libvirt] [PATCH 00/21] Rewrite the QEMU monitor handling
by Daniel P. Berrange 03 Nov '09

03 Nov '09

This patch series rewrites the QEMU monitor handling almost completely. The key theme here is to move from a totally synchronous way of interacting with the monitor, to a totally asynchronous way. This allows us to handle receipt & dispatch of asychronous events from QEMU. For example a notification of a disk-full error, or VM state change. In the process of doing this re-factoring I have also dropped in basic support/infrastructure for the JSON based monitor. The basic JSON parsing/formatting is working, but this needs to wait until QEMU community finalize their monitor syntax for the new commands & what args they accept. Daniel

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