[libvirt] [PATCHv2 0/7] Remove some repetitive code from qemuDomainNamespace* functions
by Ján Tomko
Rebased + rename path to paths in one more function.
Ján Tomko (7):
qemuDomainNamespaceTeardownHostdev: rename path to paths
qemuDomainNamespaceSetupHostdev: rename path to paths
Introduce qemuDomainNamespaceMknodPaths
Introduce qemuDomainNamespaceMknodPath
Introduce qemuDomainNamespaceUnlinkPaths
Introduce qemuDomainNamespaceUnlinkPath
Do not pass driver to qemuDomainNamespace{Setup,Teardown} functions
src/qemu/qemu_domain.c | 394 ++++++++++++++++++------------------------------
src/qemu/qemu_domain.h | 30 ++--
src/qemu/qemu_driver.c | 2 +-
src/qemu/qemu_hotplug.c | 42 +++---
4 files changed, 176 insertions(+), 292 deletions(-)
--
2.13.6
7 years
[libvirt] [PATCH] qemuDomainNamespaceSetupDisk: initialize npaths
by Ján Tomko
Introduced by commit d3db304.
Reported-by: John Ferlan <jferlan(a)redhat.com>
---
Pushed as trivial.
src/qemu/qemu_domain.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 75cecb1bb..d7150cae1 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -10034,7 +10034,7 @@ qemuDomainNamespaceSetupDisk(virDomainObjPtr vm,
{
virStorageSourcePtr next;
char **paths = NULL;
- size_t npaths;
+ size_t npaths = 0;
int ret = -1;
if (!qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT))
--
2.13.6
7 years
[libvirt] [PATCH] docs: domain: Fix documentation of the 'snapshot' attribute for <disk>
by Peter Krempa
Emphasise the valid values by wrapping them in <code> and reword the
last sentence so that the invalid value example can be dropped.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1523070
---
docs/formatdomain.html.in | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 29a9681467..01db83e608 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -2584,17 +2584,16 @@
<dt><code>snapshot</code></dt>
<dd>
Indicates the default behavior of the disk during disk snapshots:
- "internal" requires a file format such as qcow2 that can store
- both the snapshot and the data changes since the snapshot;
- "external" will separate the snapshot from the live data; and
- "no" means the disk will not participate in snapshots. Read-only
- disks default to "no", while the default for other disks depends
- on the hypervisor's capabilities. Some hypervisors allow a
- per-snapshot choice as well, during
+ "<code>internal</code>" requires a file format such as qcow2 that
+ can store both the snapshot and the data changes since the snapshot;
+ "<code>external</code>" will separate the snapshot from the live
+ data; and "<code>no</code>" means the disk will not participate in
+ snapshots. Read-only disks default to "<code>no</code>", while the
+ default for other disks depends on the hypervisor's capabilities.
+ Some hypervisors allow a per-snapshot choice as well, during
<a href="formatsnapshot.html">domain snapshot creation</a>.
- Not all snapshot modes are supported; for example,
- <code>snapshot='yes'</code> with a transient disk generally
- does not make sense.
+ Not all snapshot modes are supported; for example, enabling
+ snapshots with a transient disk generally does not make sense.
<span class="since">Since 0.9.5</span>
</dd>
</dl>
--
2.15.0
7 years
[libvirt] [PATCH] virerror: mark VIR_ERR_AGENT_UNSYNCED as DEPRECATED
by Chen Hanxiao
From: Chen Hanxiao <chenhanxiao(a)gmail.com>
Since commit 5e5019bf, we've no longer use
VIR_ERR_AGENT_UNSYNCED anymore.
Mark it as DEPRECATED.
Signed-off-by: Chen Hanxiao <chenhanxiao(a)gmail.com>
---
include/libvirt/virterror.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h
index d2b5f1fd4..91ba29784 100644
--- a/include/libvirt/virterror.h
+++ b/include/libvirt/virterror.h
@@ -318,7 +318,7 @@ typedef enum {
VIR_ERR_NO_SERVER = 95, /* Server was not found */
VIR_ERR_NO_CLIENT = 96, /* Client was not found */
VIR_ERR_AGENT_UNSYNCED = 97, /* guest agent replies with wrong id
- to guest-sync command */
+ to guest-sync command (DEPRECATED)*/
VIR_ERR_LIBSSH = 98, /* error in libssh transport driver */
} virErrorNumber;
--
2.14.3
7 years
[libvirt] [PATCH] storage: Don't dereference driver object if virStorageSource is not initialized
by Peter Krempa
virStorageFileReportBrokenChain uses data from the driver private data
pointer to print the user and group. This would lead to a crash in call
paths where we did not initialize the storage backend as recently added
in commit 24e47ee2b93 to qemuDomainDetermineDiskChain.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1522682
---
Once pushed I'll also backport it to a maint branch of the last release
if that's desired.
src/storage/storage_source.c | 38 ++++++++++++++++++++++++++------------
1 file changed, 26 insertions(+), 12 deletions(-)
diff --git a/src/storage/storage_source.c b/src/storage/storage_source.c
index 4586ef4ad4..a5df84bae3 100644
--- a/src/storage/storage_source.c
+++ b/src/storage/storage_source.c
@@ -419,19 +419,33 @@ virStorageFileReportBrokenChain(int errcode,
virStorageSourcePtr src,
virStorageSourcePtr parent)
{
- unsigned int access_user = src->drv->uid;
- unsigned int access_group = src->drv->gid;
-
- if (src == parent) {
- virReportSystemError(errcode,
- _("Cannot access storage file '%s' "
- "(as uid:%u, gid:%u)"),
- src->path, access_user, access_group);
+
+ if (src->drv) {
+ unsigned int access_user = src->drv->uid;
+ unsigned int access_group = src->drv->gid;
+
+ if (src == parent) {
+ virReportSystemError(errcode,
+ _("Cannot access storage file '%s' "
+ "(as uid:%u, gid:%u)"),
+ src->path, access_user, access_group);
+ } else {
+ virReportSystemError(errcode,
+ _("Cannot access backing file '%s' "
+ "of storage file '%s' (as uid:%u, gid:%u)"),
+ src->path, parent->path, access_user, access_group);
+ }
} else {
- virReportSystemError(errcode,
- _("Cannot access backing file '%s' "
- "of storage file '%s' (as uid:%u, gid:%u)"),
- src->path, parent->path, access_user, access_group);
+ if (src == parent) {
+ virReportSystemError(errcode,
+ _("Cannot access storage file '%s' "),
+ src->path);
+ } else {
+ virReportSystemError(errcode,
+ _("Cannot access backing file '%s' "
+ "of storage file '%s'"),
+ src->path, parent->path);
+ }
}
}
--
2.15.0
7 years
[libvirt] [PATCH php v2] Fix crash in VIRT_HASH_CURRENT_KEY_INFO macro
by Dawid Zamirski
The PHP7 variant of the macro wasn't safe if the hash key was not a
string type. This was found when running php script with just
libvirt_connect call under xdebug session which segfaulted. This patch
makes the following changes:
* make sure that tmp_name is initialized to NULL
* set the key name only when zend_hash_get_current_key_ex did set it to
something which happens only when type is HASH_KEY_IS_STRING
* stash the key index in out php_libvirt_hash_key_info struct because it
wasn't there before and separate variable had to be used.
---
v1: https://www.redhat.com/archives/libvir-list/2017-December/msg00151.html
Changes since v1:
* use zend_ulong in php_libvirt_hash_key_info struct so that no type
cast is needed
src/libvirt-connection.c | 8 +++-----
src/libvirt-php.c | 6 ++----
src/libvirt-php.h | 1 +
src/util.h | 16 +++++++++-------
4 files changed, 15 insertions(+), 16 deletions(-)
diff --git a/src/libvirt-connection.c b/src/libvirt-connection.c
index 181b266..2d59d82 100644
--- a/src/libvirt-connection.c
+++ b/src/libvirt-connection.c
@@ -131,8 +131,6 @@ PHP_FUNCTION(libvirt_connect)
HashPosition pointer;
int array_count;
- zend_ulong index;
-
unsigned long libVer;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|sba", &url, &url_len, &readonly, &zcreds) == FAILURE) {
@@ -176,13 +174,13 @@ PHP_FUNCTION(libvirt_connect)
VIRT_FOREACH(arr_hash, pointer, data) {
if (Z_TYPE_P(data) == IS_STRING) {
php_libvirt_hash_key_info info;
- VIRT_HASH_CURRENT_KEY_INFO(arr_hash, pointer, index, info);
+ VIRT_HASH_CURRENT_KEY_INFO(arr_hash, pointer, info);
if (info.type == HASH_KEY_IS_STRING) {
PHPWRITE(info.name, info.length);
} else {
- DPRINTF("%s: credentials index %d\n", PHPFUNC, (int)index);
- creds[j].type = index;
+ DPRINTF("%s: credentials index %d\n", PHPFUNC, info.index);
+ creds[j].type = info.index;
creds[j].result = (char *)emalloc(Z_STRLEN_P(data) + 1);
memset(creds[j].result, 0, Z_STRLEN_P(data) + 1);
creds[j].resultlen = Z_STRLEN_P(data);
diff --git a/src/libvirt-php.c b/src/libvirt-php.c
index ef057fe..efbef58 100644
--- a/src/libvirt-php.c
+++ b/src/libvirt-php.c
@@ -1921,7 +1921,6 @@ long get_next_free_numeric_value(virDomainPtr domain, char *xpath)
HashPosition pointer;
// int array_count;
zval *data;
- unsigned long index;
long max_slot = -1;
xml = virDomainGetXMLDesc(domain, VIR_DOMAIN_XML_INACTIVE);
@@ -1934,7 +1933,7 @@ long get_next_free_numeric_value(virDomainPtr domain, char *xpath)
VIRT_FOREACH(arr_hash, pointer, data) {
if (Z_TYPE_P(data) == IS_STRING) {
php_libvirt_hash_key_info info;
- VIRT_HASH_CURRENT_KEY_INFO(arr_hash, pointer, index, info);
+ VIRT_HASH_CURRENT_KEY_INFO(arr_hash, pointer, info);
if (info.type != HASH_KEY_IS_STRING) {
long num = -1;
@@ -2439,7 +2438,6 @@ void parse_array(zval *arr, tVMDisk *disk, tVMNetwork *network)
zval *data;
php_libvirt_hash_key_info key;
HashPosition pointer;
- unsigned long index;
arr_hash = Z_ARRVAL_P(arr);
//array_count = zend_hash_num_elements(arr_hash);
@@ -2451,7 +2449,7 @@ void parse_array(zval *arr, tVMDisk *disk, tVMNetwork *network)
VIRT_FOREACH(arr_hash, pointer, data) {
if ((Z_TYPE_P(data) == IS_STRING) || (Z_TYPE_P(data) == IS_LONG)) {
- VIRT_HASH_CURRENT_KEY_INFO(arr_hash, pointer, index, key);
+ VIRT_HASH_CURRENT_KEY_INFO(arr_hash, pointer, key);
if (key.type == HASH_KEY_IS_STRING) {
if (disk != NULL) {
if ((Z_TYPE_P(data) == IS_STRING) && strcmp(key.name, "path") == 0)
diff --git a/src/libvirt-php.h b/src/libvirt-php.h
index 8d13a6b..aea43a2 100644
--- a/src/libvirt-php.h
+++ b/src/libvirt-php.h
@@ -137,6 +137,7 @@ typedef struct tVMNetwork {
typedef struct _php_libvirt_hash_key_info {
char *name;
unsigned int length;
+ zend_ulong index;
unsigned int type;
} php_libvirt_hash_key_info;
diff --git a/src/util.h b/src/util.h
index ecb3a1f..fcd4075 100644
--- a/src/util.h
+++ b/src/util.h
@@ -135,12 +135,14 @@
# define VIRT_FOREACH_END(_dummy)
-# define VIRT_HASH_CURRENT_KEY_INFO(_ht, _pos, _idx, _info) \
+# define VIRT_HASH_CURRENT_KEY_INFO(_ht, _pos, _info) \
do { \
- zend_string *tmp_key_info; \
- _info.type = zend_hash_get_current_key_ex(_ht, &tmp_key_info, &_idx, &_pos); \
- _info.name = ZSTR_VAL(tmp_key_info); \
- _info.length = ZSTR_LEN(tmp_key_info); \
+ zend_string *tmp_name = NULL; \
+ _info.type = zend_hash_get_current_key_ex(_ht, &tmp_name, &_info.index, &_pos); \
+ if (tmp_name) { \
+ _info.name = ZSTR_VAL(tmp_name); \
+ _info.length = ZSTR_LEN(tmp_name); \
+ } \
} while(0)
# define VIRT_ARRAY_INIT(_name) do { \
@@ -213,9 +215,9 @@
# define VIRT_FOREACH_END(_dummy) \
}}
-# define VIRT_HASH_CURRENT_KEY_INFO(_ht, _pos, _idx, _info) \
+# define VIRT_HASH_CURRENT_KEY_INFO(_ht, _pos, _info) \
do { \
- _info.type = zend_hash_get_current_key_ex(_ht, &_info.name, &_info.length, &_idx, 0, &_pos); \
+ _info.type = zend_hash_get_current_key_ex(_ht, &_info.name, &_info.length, &_info.index, 0, &_pos); \
} while(0)
# define VIRT_ARRAY_INIT(_name) do {\
--
2.14.3
7 years
[libvirt] [PATCH] nwfilter: fix deadlock on firewalld restart/reload
by Nikolay Shirokovskiy
Deadlock scenario:
1. domain is being started and domain driver takes read lock
for nwfilter update lock thru virNWFilterReadLockFilterUpdates.
2. firewalld restarted and event loop hangs trying to take write lock
for nwfilter update lock in nwfilterStateReload.
This is deadlock because for thread 1 to proceed we need a
response from qemu/timeout but whole event loop is stuck by 2.
Let's just offload nwfilter driver reload to a distinct thread.
Besides resolving a deadlock this change offloads rather heavy
operation (many hypervisor drivers X many domains for a driver)
off the event loop.
---
Concrete stacktrace.
Thread 17 (Thread 0x7fbd5a22d880 (LWP 7329)):
0 0x00007fbd56bb903e in pthread_rwlock_wrlock () from /lib64/libpthread.so.0
1 0x00007fbd3d511297 in nwfilterStateReload () from /usr/lib64/libvirt/connection-driver/libvirt_driver_nwfilter.so
2 0x00007fbd3d511355 in nwfilterFirewalldDBusFilter () from /usr/lib64/libvirt/connection-driver/libvirt_driver_nwfilter.so
3 0x00007fbd57bc5dfe in dbus_connection_dispatch () from /lib64/libdbus-1.so.3
4 0x00007fbd5953e641 in virDBusWatchCallback () from /lib64/libvirt.so.0
5 0x00007fbd5954868e in virEventPollRunOnce () from /lib64/libvirt.so.0
6 0x00007fbd59547942 in virEventRunDefaultImpl () from /lib64/libvirt.so.0
7 0x00007fbd596a94ed in virNetDaemonRun () from /lib64/libvirt.so.0
8 0x00007fbd5a28b07c in main ()
Thread 3 (Thread 0x7fbd49553700 (LWP 8029)):
0 0x00007fbd56bb96d5 in pthread_cond_wait@(a)GLIBC_2.3.2 () from /lib64/libpthread.so.0
1 0x00007fbd59596816 in virCondWait () from /lib64/libvirt.so.0
2 0x00007fbd3d0183db in qemuMonitorSend () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
3 0x00007fbd3d02c8d0 in qemuMonitorJSONCommandWithFd () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
4 0x00007fbd3d02e1a1 in qemuMonitorJSONSetCapabilities () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
5 0x00007fbd3cff965c in qemuConnectMonitor () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
6 0x00007fbd3cffcb70 in qemuProcessWaitForMonitor () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
7 0x00007fbd3d004668 in qemuProcessLaunch () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
8 0x00007fbd3d0062a8 in qemuProcessStart () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
9 0x00007fbd3d0679cb in qemuDomainObjStart.constprop.50 () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
10 0x00007fbd3d068106 in qemuDomainCreateWithFlags () from /usr/lib64/libvirt/connection-driver/libvirt_driver_qemu.so
11 0x00007fbd5964247d in virDomainCreateWithFlags () from /lib64/libvirt.so.0
12 0x00007fbd5a2a3b81 in remoteDispatchDomainCreateWithFlagsHelper ()
13 0x00007fbd596af3c3 in virNetServerProgramDispatch () from /lib64/libvirt.so.0
14 0x00007fbd5a2c56cd in virNetServerHandleJob ()
15 0x00007fbd59597221 in virThreadPoolWorker () from /lib64/libvirt.so.0
16 0x00007fbd595965a8 in virThreadHelper () from /lib64/libvirt.so.0
17 0x00007fbd56bb5dc5 in start_thread () from /lib64/libpthread.so.0
18 0x00007fbd568e473d in clone () from /lib64/libc.so.6
src/nwfilter/nwfilter_driver.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c
index 2f9a51c..bcb4400 100644
--- a/src/nwfilter/nwfilter_driver.c
+++ b/src/nwfilter/nwfilter_driver.c
@@ -81,6 +81,12 @@ static void nwfilterDriverUnlock(void)
#if HAVE_FIREWALLD
+static void
+nwfilterStateReloadAdapter(void *opaque ATTRIBUTE_UNUSED)
+{
+ nwfilterStateReload();
+}
+
static DBusHandlerResult
nwfilterFirewalldDBusFilter(DBusConnection *connection ATTRIBUTE_UNUSED,
DBusMessage *message,
@@ -90,8 +96,12 @@ nwfilterFirewalldDBusFilter(DBusConnection *connection ATTRIBUTE_UNUSED,
"NameOwnerChanged") ||
dbus_message_is_signal(message, "org.fedoraproject.FirewallD1",
"Reloaded")) {
+ virThread thread;
+
VIR_DEBUG("Reload in nwfilter_driver because of firewalld.");
- nwfilterStateReload();
+ if (virThreadCreate(&thread, false, nwfilterStateReloadAdapter, NULL) < 0)
+ VIR_ERROR(_("Could not create thread. Network filter "
+ "driver reload failed"));
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
--
1.8.3.1
7 years
[libvirt] [PATCH v2 00/15] Move qemu command line controller checks to qemuDomainDeviceDefValidateController* checks
by John Ferlan
v1:
https://www.redhat.com/archives/libvir-list/2017-December/msg00079.html
Changes since v1:
* Remove USB from the pile of things to move. That simplifies the
Skip helper to remove the @flags argument.
Even though it seems there was some sort of objection to Skip'ing
during Validation I left that call in place since I feel it's better
to have one common function rather than cutting out each individual
check and placing it into the various ValidateController{IDE|PCI|SATA}
helpers. Having two places to maintain such checks is less optimal
in my viewpoint.
* Be sure to Unref qemuCaps in patch 4
John Ferlan (12):
qemu: Introduce qemuDomainDeviceDefValidateController
qemu: Introduce qemuDomainDeviceDefSkipController
qemu: Use virDomainControllerType in qemuBuildControllerDevStr switch
qemu: Move CCW S390 Address check to controller def validate
qemu: Introduce qemuDomainDeviceDefValidateControllerSCSI
qemu: Introduce qemuDomainDeviceDefValidateControllerPCI
qemu: Use virDomainPCIControllerOpts in qemuBuildControllerDevStr
qemu: Move PCI command modelName check to controller def validate
qemu: Move PCI command modelName TypeToString to controller def
validate
qemu: Move PCI more command checks to controller def validate
qemu: Complete PCI command checks to controller def validate
qemu: Introduce qemuDomainDeviceDefValidateControllerSATA
Lin Ma (3):
tests: Remove use of IDE disk for pseries floppy test
tests: Drop IDE controller in CCW
qemu: Introduce qemuDomainDeviceDefValidateControllerIDE
src/qemu/qemu_command.c | 467 ++------------------
src/qemu/qemu_domain.c | 483 ++++++++++++++++++++-
src/qemu/qemu_domain.h | 4 +
.../qemuhotplug-base-ccw-live+ccw-virtio.xml | 4 -
...ive-with-2-ccw-virtio+ccw-virtio-1-explicit.xml | 4 -
...live-with-2-ccw-virtio+ccw-virtio-1-reverse.xml | 4 -
...qemuhotplug-base-ccw-live-with-2-ccw-virtio.xml | 4 -
...-live-with-ccw-virtio+ccw-virtio-2-explicit.xml | 4 -
...-base-ccw-live-with-ccw-virtio+ccw-virtio-2.xml | 4 -
.../qemuhotplug-base-ccw-live-with-ccw-virtio.xml | 4 -
.../qemuhotplug-base-ccw-live.xml | 4 -
tests/qemumemlocktest.c | 14 +
tests/qemuxml2argvdata/disk-floppy-pseries.args | 24 -
tests/qemuxml2argvdata/disk-floppy-pseries.xml | 7 -
tests/qemuxml2xmltest.c | 5 +-
15 files changed, 549 insertions(+), 487 deletions(-)
delete mode 100644 tests/qemuxml2argvdata/disk-floppy-pseries.args
--
2.13.6
7 years
[libvirt] [PATCH] docs: remove outdated link to Fedora mingw staging repo
by Daniel P. Berrange
The Fedora mingw support is all merged in Fedora repos, so remove the
outdated link.
Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com>
---
docs/windows.html.in | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/docs/windows.html.in b/docs/windows.html.in
index df60940750..3f012d18da 100644
--- a/docs/windows.html.in
+++ b/docs/windows.html.in
@@ -169,9 +169,7 @@
<p>
You can also cross-compile to a Windows target from a Fedora machine
- using the packages available
- <a href="http://hg.et.redhat.com/misc/fedora-mingw--devel/">from the Fedora MinGW project</a>
- (which includes a working libvirt specfile).
+ using the packages available in the Fedora repos.
</p>
<h3><a id="configure">By hand</a></h3>
--
2.14.3
7 years
