[libvirt] [PATCH] guest-agent-socket: don't generate default path to config XML
Pavel Hrdina
phrdina at redhat.com
Mon Nov 30 08:35:39 UTC 2015
While we started using for all unix sockets as default one common
directory based on a guest name it introduced several issues, for example
with renaming the guest or cloning it. In general it's not entirely
bad, but in this case it would be best to hide the auto-generated socket
path from user and don't export it in the config XML.
Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
---
src/conf/domain_conf.c | 2 +-
src/qemu/qemu_command.c | 28 ++++++++++++++++++++++++++++
src/qemu/qemu_command.h | 1 +
src/qemu/qemu_domain.c | 16 ----------------
src/qemu/qemu_driver.c | 10 ++++++++++
src/qemu/qemu_process.c | 3 +++
tests/qemuhotplugtest.c | 5 +++++
tests/qemuxml2argvtest.c | 5 +++++
8 files changed, 53 insertions(+), 17 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index cbfc41e..ebae828 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -9810,7 +9810,7 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
goto error;
}
- def->data.nix.listen = mode != NULL && STRNEQ(mode, "connect");
+ def->data.nix.listen = mode == NULL || STRNEQ(mode, "connect");
def->data.nix.path = path;
path = NULL;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 2a9fab5..f1bb621 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1262,6 +1262,34 @@ qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps)
}
+int
+qemuUnixSocketGenerate(virDomainDefPtr def,
+ virQEMUDriverConfigPtr cfg)
+{
+ size_t i;
+
+ for (i = 0; i < def->nchannels; i++) {
+ virDomainChrDefPtr channel = def->channels[i];
+
+ if (channel->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
+ channel->targetType == VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO &&
+ channel->source.type == VIR_DOMAIN_CHR_TYPE_UNIX &&
+ !channel->source.data.nix.path) {
+ if (virAsprintf(&channel->source.data.nix.path,
+ "%s/domain-%s/%s",
+ cfg->channelTargetDir, def->name,
+ channel->target.name ? channel->target.name
+ : "unknown.sock") < 0)
+ return -1;
+
+ channel->source.data.nix.listen = true;
+ }
+ }
+
+ return 0;
+}
+
+
static void
qemuDomainPrimeVirtioDeviceAddresses(virDomainDefPtr def,
virDomainDeviceAddressType type)
diff --git a/src/qemu/qemu_command.h b/src/qemu/qemu_command.h
index bebdd27..0512a23 100644
--- a/src/qemu/qemu_command.h
+++ b/src/qemu/qemu_command.h
@@ -283,6 +283,7 @@ int qemuAssignDevicePCISlots(virDomainDefPtr def,
virDomainPCIAddressSetPtr addrs);
int qemuAssignDeviceAliases(virDomainDefPtr def, virQEMUCapsPtr qemuCaps);
+int qemuUnixSocketGenerate(virDomainDefPtr def, virQEMUDriverConfigPtr cfg);
int qemuDomainNetVLAN(virDomainNetDefPtr def);
int qemuAssignDeviceNetAlias(virDomainDefPtr def, virDomainNetDefPtr net, int idx);
int qemuAssignDeviceDiskAlias(virDomainDefPtr vmdef,
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index ed21245..7e05289 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -1329,22 +1329,6 @@ qemuDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
ARCH_IS_S390(def->os.arch))
dev->data.controller->model = VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VIRTIO_SCSI;
- /* auto generate unix socket path */
- if (dev->type == VIR_DOMAIN_DEVICE_CHR &&
- dev->data.chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
- dev->data.chr->targetType == VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO &&
- dev->data.chr->source.type == VIR_DOMAIN_CHR_TYPE_UNIX &&
- !dev->data.chr->source.data.nix.path) {
- if (virAsprintf(&dev->data.chr->source.data.nix.path,
- "%s/domain-%s/%s",
- cfg->channelTargetDir, def->name,
- dev->data.chr->target.name ? dev->data.chr->target.name
- : "unknown.sock") < 0)
- goto cleanup;
-
- dev->data.chr->source.data.nix.listen = true;
- }
-
/* forbid capabilities mode hostdev in this kind of hypervisor */
if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV &&
dev->data.hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_CAPABILITIES) {
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ae1d8e7..b4fac55 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -7254,6 +7254,9 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
if (qemuAssignDeviceAliases(def, qemuCaps) < 0)
goto cleanup;
+ if (qemuUnixSocketGenerate(def, cfg) < 0)
+ goto cleanup;
+
if (qemuDomainAssignAddresses(def, qemuCaps, NULL) < 0)
goto cleanup;
@@ -15846,6 +15849,7 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn,
unsigned int flags)
{
virQEMUDriverPtr driver = conn->privateData;
+ virQEMUDriverConfigPtr cfg = NULL;
virDomainObjPtr vm = NULL;
virDomainDefPtr def = NULL;
virDomainPtr dom = NULL;
@@ -15858,6 +15862,8 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn,
virCheckFlags(0, NULL);
+ cfg = virQEMUDriverGetConfig(driver);
+
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
@@ -15895,6 +15901,9 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn,
if (qemuAssignDeviceAliases(def, qemuCaps) < 0)
goto cleanup;
+ if (qemuUnixSocketGenerate(def, cfg) < 0)
+ goto cleanup;
+
if (qemuDomainAssignAddresses(def, qemuCaps, NULL) < 0)
goto cleanup;
@@ -15936,6 +15945,7 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn,
VIR_FREE(pidfile);
virObjectUnref(caps);
virObjectUnref(qemuCaps);
+ virObjectUnref(cfg);
return dom;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 192730c..29cf965 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4663,6 +4663,9 @@ qemuProcessLaunch(virConnectPtr conn,
if (qemuAssignDeviceAliases(vm->def, priv->qemuCaps) < 0)
goto cleanup;
+ if (qemuUnixSocketGenerate(vm->def, cfg) < 0)
+ goto cleanup;
+
/* Get the advisory nodeset from numad if 'placement' of
* either <vcpu> or <numatune> is 'auto'.
*/
diff --git a/tests/qemuhotplugtest.c b/tests/qemuhotplugtest.c
index 102e052..b17cca2 100644
--- a/tests/qemuhotplugtest.c
+++ b/tests/qemuhotplugtest.c
@@ -61,6 +61,7 @@ qemuHotplugCreateObjects(virDomainXMLOptionPtr xmlopt,
{
int ret = -1;
qemuDomainObjPrivatePtr priv = NULL;
+ virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(&driver);
if (!(*vm = virDomainObjNew(xmlopt)))
goto cleanup;
@@ -94,10 +95,14 @@ qemuHotplugCreateObjects(virDomainXMLOptionPtr xmlopt,
if (qemuAssignDeviceAliases((*vm)->def, priv->qemuCaps) < 0)
goto cleanup;
+ if (qemuUnixSocketGenerate((*vm)->def, cfg) < 0)
+ goto cleanup;
+
(*vm)->def->id = QEMU_HOTPLUG_TEST_DOMAIN_ID;
ret = 0;
cleanup:
+ virObjectUnref(cfg);
return ret;
}
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index f7596a0..f6083db 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -262,6 +262,7 @@ static int testCompareXMLToArgvFiles(const char *xml,
virCommandPtr cmd = NULL;
size_t i;
virBitmapPtr nodeset = NULL;
+ virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(&driver);
if (!(conn = virGetConnect()))
goto out;
@@ -324,6 +325,9 @@ static int testCompareXMLToArgvFiles(const char *xml,
if (qemuAssignDeviceAliases(vmdef, extraFlags) < 0)
goto out;
+ if (qemuUnixSocketGenerate(vmdef, cfg) < 0)
+ goto out;
+
for (i = 0; i < vmdef->nhostdevs; i++) {
virDomainHostdevDefPtr hostdev = vmdef->hostdevs[i];
@@ -387,6 +391,7 @@ static int testCompareXMLToArgvFiles(const char *xml,
virCommandFree(cmd);
virDomainDefFree(vmdef);
virObjectUnref(conn);
+ virObjectUnref(cfg);
virBitmapFree(nodeset);
return ret;
}
--
2.6.3
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