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[libvirt] [PATCH] specfile: require libnl3 for Fedora >= 18 and RHEL >= 7
by Laine Stump 27 Aug '12

27 Aug '12

Everything is ready in both netcf and libvirt to switch over to libnl3 in future releases of both Fedora and RHEL. This needs to be done more or less simultaneously in both packages, though, because you can't mix libnl1.1 and libnl3 in the same process (e.g. libvirtd using libnl-3.so and libnetcf.so, while libnetcf.so uses libnl.so) This patch does two things when fedora >= 18 || rhel >= 7): 1) requires libnl3-devel 2) requires netcf-devel-0.2.2 or greater (the idea is that a similar patch is going into netcf's specfile, so that when a build of netcf is done on F18 or later (or RHEL7 or later) netcf will be guaranteed to be built with libnl3 rather than libnl-1.1) --- libvirt.spec.in | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/libvirt.spec.in b/libvirt.spec.in index 18a7fb8..4b4d1d0 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -409,8 +409,12 @@ BuildRequires: sanlock-devel >= 1.8 BuildRequires: libpcap-devel %endif %if %{with_libnl} +%if 0%{?fedora} >= 18 || 0%{?rhel} >= 7 +BuildRequires: libnl3-devel +%else BuildRequires: libnl-devel %endif +%endif %if %{with_avahi} BuildRequires: avahi-devel %endif @@ -489,13 +493,18 @@ BuildRequires: libcap-ng-devel >= 0.5.0 %if %{with_phyp} BuildRequires: libssh2-devel %endif + %if %{with_netcf} +%if 0%{?fedora} >= 18 || 0%{?rhel} >= 7 +BuildRequires: netcf-devel >= 0.2.2 +%else %if 0%{?fedora} >= 16 || 0%{?rhel} >= 6 BuildRequires: netcf-devel >= 0.1.8 %else BuildRequires: netcf-devel >= 0.1.4 %endif %endif +%endif %if %{with_esx} %if 0%{?fedora} >= 9 || 0%{?rhel} >= 6 BuildRequires: libcurl-devel -- 1.7.11.4

4 7

[libvirt] [PATCH v2] esx: Support VLAN tags in virtual network port groups
by Matthias Bolte 26 Aug '12

26 Aug '12

--- v2: Use network level VLAN config if there is no portgroup specific VLAN config given. src/esx/esx_network_driver.c | 65 ++++++++++++++++++++++++++++++++++++++--- 1 files changed, 60 insertions(+), 5 deletions(-) diff --git a/src/esx/esx_network_driver.c b/src/esx/esx_network_driver.c index 09d46d3..7b529ee 100644 --- a/src/esx/esx_network_driver.c +++ b/src/esx/esx_network_driver.c @@ -489,7 +489,40 @@ esxNetworkDefineXML(virConnectPtr conn, const char *xml) goto cleanup; } - hostPortGroupSpec->vlanId->value = 0; + if (def->portGroups[i].vlan.trunk) { + /* FIXME: Change this once tag-less trunk-mode is supported */ + if (def->portGroups[i].vlan.nTags != 1 || + *def->portGroups[i].vlan.tag != 4095) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("VLAN tag has to be 4095 in trunk mode")); + goto cleanup; + } + + hostPortGroupSpec->vlanId->value = 4095; + } else if (def->portGroups[i].vlan.nTags == 1) { + hostPortGroupSpec->vlanId->value = *def->portGroups[i].vlan.tag; + } else if (def->portGroups[i].vlan.nTags > 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Can apply one VLAN tag per port group only")); + goto cleanup; + } else if (def->vlan.trunk) { + /* FIXME: Change this once tag-less trunk-mode is supported */ + if (def->vlan.nTags != 1 || *def->vlan.tag != 4095) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("VLAN tag has to be 4095 in trunk mode")); + goto cleanup; + } + + hostPortGroupSpec->vlanId->value = 4095; + } else if (def->vlan.nTags == 1) { + hostPortGroupSpec->vlanId->value = *def->vlan.tag; + } else if (def->vlan.nTags > 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Can apply one VLAN tag per port group only")); + goto cleanup; + } else { + hostPortGroupSpec->vlanId->value = 0; + } if (def->portGroups[i].bandwidth != NULL) { if (esxBandwidthToShapingPolicy @@ -519,6 +552,8 @@ esxNetworkDefineXML(virConnectPtr conn, const char *xml) network = virGetNetwork(conn, hostVirtualSwitch->name, md5); cleanup: + /* FIXME: need to remove virtual switch if adding port groups failed */ + virNetworkDefFree(def); esxVI_HostVirtualSwitch_Free(&hostVirtualSwitch); esxVI_HostPortGroup_Free(&hostPortGroupList); @@ -695,6 +730,7 @@ esxNetworkGetXMLDesc(virNetworkPtr network_, unsigned int flags) esxVI_String *hostPortGroupKey = NULL; esxVI_String *networkName = NULL; virNetworkDefPtr def; + virPortGroupDefPtr portGroup; if (esxVI_EnsureSession(priv->primary) < 0) { return NULL; @@ -824,9 +860,12 @@ esxNetworkGetXMLDesc(virNetworkPtr network_, unsigned int flags) for (networkName = networkNameList; networkName != NULL; networkName = networkName->_next) { if (STREQ(networkName->value, hostPortGroup->spec->name)) { - def->portGroups[def->nPortGroups].name = strdup(networkName->value); + portGroup = &def->portGroups[def->nPortGroups]; + ++def->nPortGroups; - if (def->portGroups[def->nPortGroups].name == NULL) { + portGroup->name = strdup(networkName->value); + + if (portGroup->name == NULL) { virReportOOMError(); goto cleanup; } @@ -834,13 +873,29 @@ esxNetworkGetXMLDesc(virNetworkPtr network_, unsigned int flags) if (hostPortGroup->spec->policy != NULL) { if (esxShapingPolicyToBandwidth (hostPortGroup->spec->policy->shapingPolicy, - &def->portGroups[def->nPortGroups].bandwidth) < 0) { + &portGroup->bandwidth) < 0) { ++def->nPortGroups; goto cleanup; } } - ++def->nPortGroups; + if (hostPortGroup->spec->vlanId->value > 0) { + if (hostPortGroup->spec->vlanId->value == 4095) { + portGroup->vlan.trunk = true; + } + + /* FIXME: Remove this once tag-less trunk-mode is supported */ + portGroup->vlan.nTags = 1; + + if (VIR_ALLOC_N(portGroup->vlan.tag, 1) < 0) { + virReportOOMError(); + goto cleanup; + } + + *portGroup->vlan.tag = + hostPortGroup->spec->vlanId->value; + } + break; } } -- 1.7.4.1

2 1

[libvirt] [PATCH] esx: Support VLAN tags in virtual network port groups
by Matthias Bolte 26 Aug '12

26 Aug '12

--- src/esx/esx_network_driver.c | 38 +++++++++++++++++++++++++++++++++----- 1 files changed, 33 insertions(+), 5 deletions(-) diff --git a/src/esx/esx_network_driver.c b/src/esx/esx_network_driver.c index 09d46d3..2f5f1ab 100644 --- a/src/esx/esx_network_driver.c +++ b/src/esx/esx_network_driver.c @@ -489,7 +489,16 @@ esxNetworkDefineXML(virConnectPtr conn, const char *xml) goto cleanup; } - hostPortGroupSpec->vlanId->value = 0; + if (def->portGroups[i].vlan.trunk) { + hostPortGroupSpec->vlanId->value = 4095; + } else if (def->portGroups[i].vlan.nTags == 1) { + hostPortGroupSpec->vlanId->value = *def->portGroups[i].vlan.tag; + } else if (def->portGroups[i].vlan.nTags > 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Can apply one VLAN tag per port group only")); + } else { + hostPortGroupSpec->vlanId->value = 0; + } if (def->portGroups[i].bandwidth != NULL) { if (esxBandwidthToShapingPolicy @@ -695,6 +704,7 @@ esxNetworkGetXMLDesc(virNetworkPtr network_, unsigned int flags) esxVI_String *hostPortGroupKey = NULL; esxVI_String *networkName = NULL; virNetworkDefPtr def; + virPortGroupDefPtr portGroup = NULL; if (esxVI_EnsureSession(priv->primary) < 0) { return NULL; @@ -824,9 +834,12 @@ esxNetworkGetXMLDesc(virNetworkPtr network_, unsigned int flags) for (networkName = networkNameList; networkName != NULL; networkName = networkName->_next) { if (STREQ(networkName->value, hostPortGroup->spec->name)) { - def->portGroups[def->nPortGroups].name = strdup(networkName->value); + portGroup = &def->portGroups[def->nPortGroups]; + ++def->nPortGroups; + + portGroup->name = strdup(networkName->value); - if (def->portGroups[def->nPortGroups].name == NULL) { + if (portGroup->name == NULL) { virReportOOMError(); goto cleanup; } @@ -834,13 +847,28 @@ esxNetworkGetXMLDesc(virNetworkPtr network_, unsigned int flags) if (hostPortGroup->spec->policy != NULL) { if (esxShapingPolicyToBandwidth (hostPortGroup->spec->policy->shapingPolicy, - &def->portGroups[def->nPortGroups].bandwidth) < 0) { + &portGroup->bandwidth) < 0) { ++def->nPortGroups; goto cleanup; } } - ++def->nPortGroups; + if (hostPortGroup->spec->vlanId->value > 0) { + if (hostPortGroup->spec->vlanId->value == 4095) { + portGroup->vlan.trunk = true; + } + + portGroup->vlan.nTags = 1; + + if (VIR_ALLOC_N(portGroup->vlan.tag, 1) < 0) { + virReportOOMError(); + goto cleanup; + } + + *portGroup->vlan.tag = + hostPortGroup->spec->vlanId->value; + } + break; } } -- 1.7.4.1

3 3

[libvirt] switching both libvirt and netcf packages to use libnl3 instead of libnl-1.1
by Laine Stump 25 Aug '12

25 Aug '12

Both libvirt and the netcf library it links to use libnl for doing things with netlink sockets. libnl comes in a couple of different and API-incompatible flavors, namely libnl-1.1 and libnl-3. For a long time Fedora had just libnl-1.1, and libvirt only supported libnl-1.1 Awhile back Fedora gained support for using libnl-3 instead of libnl-1.1, and did so in a way that allows both libraries (both runtime and -devel) to still exist on the system at the same time, and programs can pick which one they want to use. Even more recently libvirt and netcf got patches to support building with libnl-3 rather than libnl-1.1 (preferring libnl-3 if both are available). Since development (and even bugfixes) of libnl-1.1 is basically dead, I want to switch over the F18 and later builds of libvirt to use libnl-3, but this will take careful timing (and some restrictions in the libvirt specfile) because attempting to run a libnl3-linked libvirt with a netcf.so that was linked with libnl-1.1 (or vice versa) results in a segv. Other than the basic use of a Requires: line in the libvirt specfile to make the newly-libnl3-enabled build of libvirt require a similarly-enabled build of netcf, does anyone have any recommendations on making this transition as painless as possible (and as soon as possible - I obviously want to do this before F18 is released).

1 0

[libvirt] [PATCHv2 0/3] split snapshot conf out of domain conf
by Eric Blake 24 Aug '12

24 Aug '12

Rebased version from v1 [1], only changes are catering to other changes in domain_conf in the meantime, and (temporarily) dropping the XML changes of the original patch 4 until I have code that can actually use the XML in 0.10.1. I'm hoping these three patches still qualify for 0.10.0. [1] https://www.redhat.com/archives/libvir-list/2012-August/msg01250.html Eric Blake (3): snapshot: make virDomainSnapshotObjList opaque snapshot: split snapshot conf code into own file snapshot: rename an enum po/POTFILES.in | 1 + src/Makefile.am | 3 +- src/conf/domain_conf.c | 933 +------------------------------------------- src/conf/domain_conf.h | 143 +------ src/conf/snapshot_conf.c | 972 ++++++++++++++++++++++++++++++++++++++++++++++ src/conf/snapshot_conf.h | 157 ++++++++ src/esx/esx_driver.c | 1 + src/libvirt_private.syms | 5 +- src/qemu/qemu_command.c | 1 + src/qemu/qemu_domain.c | 7 +- src/qemu/qemu_domain.h | 3 +- src/qemu/qemu_driver.c | 69 ++-- src/qemu/qemu_migration.c | 2 +- src/vbox/vbox_tmpl.c | 1 + 14 files changed, 1209 insertions(+), 1089 deletions(-) create mode 100644 src/conf/snapshot_conf.c create mode 100644 src/conf/snapshot_conf.h -- 1.7.11.4

2 10

[libvirt] [PATCH] xen-xs: fix uuid of renamed domain
by Philipp Hahn 24 Aug '12

24 Aug '12

When the XenStore tdb lives persistently and is not cleared between host reboots, Xend (version 3.4 and 4.1) re-creates the domain information located in XenStore below /vm/$UUID. (According to the xen-3.2-commit hg265950e3df69 to fix a problem when locally migrating a domain to the host itself.) When doing so a version number is added to the UUID separated by one dash, which confuses xenStoreDomainIntroduced(): It iterates over all domains and tries to lookup all inactive domains using xenStoreDomainGetUUID(), which fails if the running domain is renamed: virUUIDParse() fails to parse the versioned UUID and the domain is flagged as missing. When this happens the function delays .2s and re-tries 20 times again, multiplied by the number of renamed VMs. 14:48:38.878: 4285: debug : xenStoreDomainIntroduced:1354 : Some domains were missing, trying again This adds a significant delay: # time virsh list >/dev/null real 0m6.529s # xenstore-list /vm 00000000-0000-0000-0000-000000000000 00000000-0000-0000-0000-000000000000-1 00000000-0000-0000-0000-000000000000-2 00000000-0000-0000-0000-000000000000-3 00000000-0000-0000-0000-000000000000-4 00000000-0000-0000-0000-000000000000-5 7c06121e-90c3-93d4-0126-50481d485cca 00000000-0000-0000-0000-000000000000-6 00000000-0000-0000-0000-000000000000-7 144ad19d-dfb4-2f80-8045-09196bb8784f 00000000-0000-0000-0000-000000000000-8 144ad19d-dfb4-2f80-8045-09196bb8784f-1 00000000-0000-0000-0000-000000000000-9 00000000-0000-0000-0000-000000000000-10 00000000-0000-0000-0000-000000000000-11 00000000-0000-0000-0000-000000000000-12 00000000-0000-0000-0000-000000000000-13 00000000-0000-0000-0000-000000000000-14 144ad19d-dfb4-2f80-8045-09196bb8784f-2 00000000-0000-0000-0000-000000000000-15 144ad19d-dfb4-2f80-8045-09196bb8784f-3 00000000-0000-0000-0000-000000000000-16 The patch adds truncation of the UUID as read from the XenStore path before passing it to virUUIDParse(). The same issue is reported at <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=666135> Signed-off-by: Philipp Hahn <hahn(a)univention.de> --- src/xen/xs_internal.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/xen/xs_internal.c b/src/xen/xs_internal.c index e56d1a4..cdaef17 100644 --- a/src/xen/xs_internal.c +++ b/src/xen/xs_internal.c @@ -1115,8 +1115,11 @@ int xenStoreDomainGetUUID(virConnectPtr conn, snprintf(prop, 199, "/local/domain/%d/vm", id); prop[199] = 0; /* This will return something like - * /vm/00000000-0000-0000-0000-000000000000 */ + * /vm/00000000-0000-0000-0000-000000000000[-*] */ uuidstr = xs_read(priv->xshandle, 0, prop, &len); + /* Strip optional version suffix when VM was renamed */ + if (len > 40) /* strlen('/vm/') + VIR_UUID_STRING_BUFLEN - sizeof('\0') */ + uuidstr[40] = '\0'; /* remove "/vm/" */ ret = virUUIDParse(uuidstr + 4, uuid); -- 1.7.1

2 1

[libvirt] [PATCH 1/2] security: Add DAC to security_drivers
by Michal Privoznik 24 Aug '12

24 Aug '12

Currently, if users set 'security_driver="dac"' in qemu.conf libvirtd fails to initialize as DAC driver is not found because it is missing in our security drivers array. --- src/security/security_driver.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/src/security/security_driver.c b/src/security/security_driver.c index f450a94..e6da220 100644 --- a/src/security/security_driver.c +++ b/src/security/security_driver.c @@ -35,6 +35,7 @@ # include "security_apparmor.h" #endif +#include "security_dac.h" #include "security_nop.h" #define VIR_FROM_THIS VIR_FROM_SECURITY @@ -46,6 +47,7 @@ static virSecurityDriverPtr security_drivers[] = { #ifdef WITH_SECDRIVER_APPARMOR &virAppArmorSecurityDriver, #endif + &virSecurityDriverDAC, &virSecurityDriverNop, /* Must always be last, since it will always probe */ }; -- 1.7.8.6

2 4

[libvirt] [PATCH] libssh2_transport: Add docs to remote.html
by Peter Krempa 24 Aug '12

24 Aug '12

Describe the existence of the transport driver and document the configurable options. --- docs/remote.html.in | 52 +++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 47 insertions(+), 5 deletions(-) diff --git a/docs/remote.html.in b/docs/remote.html.in index e6af4c2..40696b9 100644 --- a/docs/remote.html.in +++ b/docs/remote.html.in @@ -136,8 +136,14 @@ Remote libvirt supports a range of transports: <dd> Unencrypted TCP/IP socket. Not recommended for production use, this is normally disabled, but an administrator can enable it for testing or use over a trusted network. - The standard port is 16509. - </dd> + The standard port is 16509. </dd> + <dt> libssh2 </dt> + <dd> Transport over the SSH protocol using + <a href="http://libssh2.org/" title="libssh2 homepage">libssh2</a> instead +of the OpenSSH binary. This transport uses the libvirt authentication callback for +all ssh authentication calls and therefore supports keyboard-interactive authentication +even with graphical management applications. As with the classic ssh transport +netcat is required on the remote side.</dd> </dl> <p> The default transport, if no other is specified, is <code>tls</code>. @@ -182,6 +188,9 @@ Connect to a libvirtd daemon offering unencrypted TCP/IP connections on localhost port 5000 and use the test driver with default settings. </li> +<li><code>qemu+libssh2://user@host/system?known_hosts=/home/user/.ssh/known_hosts</code><br/> — +Connect to a remote host using a ssh connection with the libssh2 driver +and use a different known_hosts file.</li> </ul> <h4> <a name="Remote_URI_parameters">Extra parameters</a> @@ -237,7 +246,7 @@ Note that parameter values must be <td> <code>socket</code> </td> - <td> unix, ssh </td> + <td> unix, ssh, libssh2 </td> <td> The path to the Unix domain socket, which overrides the compiled-in default. For ssh transport, this is passed to @@ -252,7 +261,7 @@ Note that parameter values must be <td> <code>netcat</code> </td> - <td> ssh </td> + <td> ssh, libssh2 </td> <td> The name of the netcat command on the remote machine. The default is <code>nc</code>. For ssh transport, libvirt @@ -277,7 +286,7 @@ Note that parameter values must be <td> <code>keyfile</code> </td> - <td> ssh </td> + <td> ssh, libssh2 </td> <td> The name of the private key file to use to authentication to the remote machine. If this option is not used the default keys are used. @@ -341,6 +350,39 @@ Note that parameter values must be <td colspan="2"/> <td> Example: <code>pkipath=/tmp/pki/client</code> </td> </tr> + <tr> + <td> + <code>known_hosts</code> + </td> + <td> libssh2 </td> + <td> + Path to the known_hosts file to verify the host key agains. LibSSH2 + supports OpenSSH-style known_hosts files, although it does not support + all key types, so using files created by the OpenSSH binary may result + into truncating the known_hosts file. It's recommended to use the default + known_hosts file is located in libvirt's client local configuration + directory e.g.: ~/.config/libvirt/known_hosts. Note: Use absolute paths. +</td> + </tr> + <tr> + <td colspan="2"/> + <td> Example: <code>known_hosts=/root/.ssh/known_hosts</code> </td> + </tr> + <tr> + <td> + <code>sshauth</code> + </td> + <td> libssh2 </td> + <td> + A comma separated list of authentication methods to use. Default (is + "agent,privkey,keyboard-interactive". The order of the methods is perserved. + Some methods may require additional parameters. +</td> + </tr> + <tr> + <td colspan="2"/> + <td> Example: <code>sshauth=privkey,agent</code> </td> + </tr> </table> <h3> <a name="Remote_certificates">Generating TLS certificates</a> -- 1.7.12

2 2

[libvirt] How to solve this problem---libvirtError: this function is not supported by the connection driver: virNWFilterDefineXML
by Zhihong Wang 24 Aug '12

24 Aug '12

Dear all: I am trying to deploy openstack on xen hypervisor.Since XenSever or XCP is not available on our customized virtulization platform. We decide to use libvirt on xen as a middleware operating the xen hypervisor. But when I try to boot a instance , xen failed to response and I find the error in my nova.log as follows: 2012-08-24 09:17:25 ERROR nova.compute.manager [req-4b60e9a9-680c-457b-bf93-b71fb6230245 562096602c5e41748dd568d5db0f7553 6bd4a2580bcd4bef890d7ba4da82e925] [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] Instance failed to spawn 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] Traceback (most recent call last): 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/compute/manager.py", line 592, in _spawn 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] self._legacy_nw_info(network_info), block_device_info) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/exception.py", line 114, in wrapped 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] return f(*args, **kw) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/virt/libvirt/connection.py", line 899, in spawn 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] self.firewall_driver.setup_basic_filtering(instance, network_info) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/virt/libvirt/firewall.py", line 231, in setup_basic_filtering 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] self.nwfilter.setup_basic_filtering(instance, network_info) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/virt/libvirt/firewall.py", line 102, in setup_basic_filtering 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] self._ensure_static_filters() 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/virt/libvirt/firewall.py", line 130, in _ensure_static_filters 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] 'allow-dhcp-server'])) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/nova-2012.1-py2.6.egg/nova/virt/libvirt/firewall.py", line 150, in _define_filter 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] tpool.execute(self._conn.nwfilterDefineXML, xml) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib/python2.6/site-packages/eventlet/tpool.py", line 76, in tworker 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] rv = meth(*args,**kwargs) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2628, in nwfilterDefineXML 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] if ret is None:raise libvirtError('virNWFilterDefineXML() failed', conn=self) 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] libvirtError: this function is not supported by the connection driver: virNWFilterDefineXML 2012-08-24 09:17:25 TRACE nova.compute.manager [instance: 3645be21-9b5b-4718-9c9f-f6ba3588f7b4] It seems that libvirt doesn't support virNWFilterDefineXML on xen,Is there any good solutions? Or how much work should be done to add this function to libvirt? I would take it into consideration seriously if I could fix this problem

2 1

[libvirt] [PATCH] openvz: check the exitstatus of vzlist
by Laine Stump 24 Aug '12

24 Aug '12

I noticed this while auditing all calls to virCommandRun that request an exit status from virCommandRun. Two functions in the openvz driver openvzDomainGetBarrierLimit openvzDomainSetBarrierLimit request an exit status from virCommandRun (thus assuring that virCommandRun won't log any errors just due to a non-0 exit status), but then fail to examine that exit status. This could result in the functions believing that the call to "vzlist" was successful, even though it may have encountered an error. --- src/openvz/openvz_driver.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c index 8257ed5..a1d3b42 100644 --- a/src/openvz/openvz_driver.c +++ b/src/openvz/openvz_driver.c @@ -1707,7 +1707,7 @@ openvzDomainGetBarrierLimit(virDomainPtr domain, virCommandSetOutputBuffer(cmd, &output); virCommandAddArgFormat(cmd, "-o%s.b,%s.l", param, param); virCommandAddArg(cmd, domain->name); - if (virCommandRun(cmd, &status)) { + if (virCommandRun(cmd, &status) < 0 || status != 0) { virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to get %s for %s: %d"), param, domain->name, status); @@ -1758,7 +1758,7 @@ openvzDomainSetBarrierLimit(virDomainPtr domain, virCommandAddArgFormat(cmd, "--%s", param); virCommandAddArgFormat(cmd, "%llu:%llu", barrier, limit); virCommandAddArg(cmd, "--save"); - if (virCommandRun(cmd, &status)) { + if (virCommandRun(cmd, &status) < 0 || status != 0) { virReportError(VIR_ERR_OPERATION_FAILED, _("Failed to set %s for %s: %d"), param, domain->name, status); -- 1.7.11.4

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