June 2011 - Devel - libvirt List Archives

[libvirt] [PATCH v6 0/5] Add TXT record and hosts support for DNS service and dnsmasq command-line regression testing
by Michal Novotny 25 Jun '11

25 Jun '11

Hi, this is the 6th (and hopefully the last) version of my patch to introduce the TXT record and DNS hosts support for the DNS service on the virtual network. This can be defined using the txt subelement in the dns element of the network XML description. The definition of TXT record names containing spaces is rejected with the error message that TXT record names in DNS doesn't support spaces. Also, regression testing for the dnsmasq command line has been added to test whether the dnsmasq command-line is correct or not. The new XML definition syntax is: <dns> <txt name="example" value="example value" /> <host ip='192.168.122.1'> <hostname>gateway</hostname> <hostname>host</hostname> </host> </dns> Where multiple host elements can be defined to put the aliases. The <dns> element have to be present on the <ip> level, i.e. one level upper than it was in version 2 of the patch since the definition affects all the IP addresses on the network. The patch series has been tested for the configuration and it was working fine and also RelaxNG schema with the tests have been both altered to add test cases to test those patches. This is the new version for latest libvirt codebase so please review the patchset. Some fixes and code optimizations were done by Laine Stump, so I'm adding him into the SOB clause as well ;-) Please review. Thanks, Michal Signed-off-by: Michal Novotny <minovotn(a)redhat.com> Signed-off-by: Laine Stump <lstump(a)redhat.com> Michal Novotny (5): Add TXT record support for virtual DNS service Network: Add regression tests for the command-line arguments Network: Move dnsmasqContext creation to networkSaveDnsmasqHostsfile() Network: Add additional hosts internal infrastructure Network: Add support for DNS hosts definition to the network XML docs/formatnetwork.html.in | 29 ++- docs/schemas/network.rng | 28 ++ src/Makefile.am | 7 +- src/conf/network_conf.c | 206 ++++++++++++++ src/conf/network_conf.h | 26 ++ src/libvirt_network.syms | 6 + src/libvirt_private.syms | 1 + src/network/bridge_driver.c | 123 ++++++--- src/network/bridge_driver.h | 3 + src/util/dnsmasq.c | 285 ++++++++++++++++++-- src/util/dnsmasq.h | 22 ++- tests/Makefile.am | 10 + tests/networkxml2argvdata/isolated-network.argv | 1 + tests/networkxml2argvdata/isolated-network.xml | 11 + .../networkxml2argvdata/nat-network-dns-hosts.argv | 1 + .../networkxml2argvdata/nat-network-dns-hosts.xml | 14 + .../nat-network-dns-txt-record.argv | 1 + .../nat-network-dns-txt-record.xml | 24 ++ tests/networkxml2argvdata/nat-network.argv | 1 + tests/networkxml2argvdata/nat-network.xml | 21 ++ tests/networkxml2argvdata/netboot-network.argv | 1 + tests/networkxml2argvdata/netboot-network.xml | 14 + .../networkxml2argvdata/netboot-proxy-network.argv | 1 + .../networkxml2argvdata/netboot-proxy-network.xml | 13 + tests/networkxml2argvdata/routed-network.argv | 1 + tests/networkxml2argvdata/routed-network.xml | 9 + tests/networkxml2argvtest.c | 109 ++++++++ tests/networkxml2xmlin/nat-network-dns-hosts.xml | 14 + .../nat-network-dns-txt-record.xml | 24 ++ tests/networkxml2xmlout/nat-network-dns-hosts.xml | 14 + .../nat-network-dns-txt-record.xml | 24 ++ tests/networkxml2xmltest.c | 2 + 32 files changed, 990 insertions(+), 56 deletions(-) create mode 100644 src/libvirt_network.syms create mode 100644 tests/networkxml2argvdata/isolated-network.argv create mode 100644 tests/networkxml2argvdata/isolated-network.xml create mode 100644 tests/networkxml2argvdata/nat-network-dns-hosts.argv create mode 100644 tests/networkxml2argvdata/nat-network-dns-hosts.xml create mode 100644 tests/networkxml2argvdata/nat-network-dns-txt-record.argv create mode 100644 tests/networkxml2argvdata/nat-network-dns-txt-record.xml create mode 100644 tests/networkxml2argvdata/nat-network.argv create mode 100644 tests/networkxml2argvdata/nat-network.xml create mode 100644 tests/networkxml2argvdata/netboot-network.argv create mode 100644 tests/networkxml2argvdata/netboot-network.xml create mode 100644 tests/networkxml2argvdata/netboot-proxy-network.argv create mode 100644 tests/networkxml2argvdata/netboot-proxy-network.xml create mode 100644 tests/networkxml2argvdata/routed-network.argv create mode 100644 tests/networkxml2argvdata/routed-network.xml create mode 100644 tests/networkxml2argvtest.c create mode 100644 tests/networkxml2xmlin/nat-network-dns-hosts.xml create mode 100644 tests/networkxml2xmlin/nat-network-dns-txt-record.xml create mode 100644 tests/networkxml2xmlout/nat-network-dns-hosts.xml create mode 100644 tests/networkxml2xmlout/nat-network-dns-txt-record.xml -- 1.7.3.2

3 12

[libvirt] [PATCH] python: Don't declare Py_ssize_t for Python 2.6
by Matthias Bolte 25 Jun '11

25 Jun '11

Commit cd48c3f4e95597 added a Py_ssize_t typedef for Python < 2.7. But Py_ssize_t was added in Python 2.5. This makes the build fail for Python 2.6. Adjust the check to match Python < 2.5 to fix this. --- python/typewrappers.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/python/typewrappers.h b/python/typewrappers.h index 70c15d9..87ea1e5 100644 --- a/python/typewrappers.h +++ b/python/typewrappers.h @@ -22,7 +22,7 @@ #endif /* Work around really old python. */ -#if PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION < 7 +#if PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION < 5 typedef ssize_t Py_ssize_t; #endif -- 1.7.0.4

2 2

[libvirt] [PATCH] tests: Improve IPv6 detection for virNetSocket tests
by Matthias Bolte 25 Jun '11

25 Jun '11

getifaddrs can return an IPv6 address, but getaddrinfo can fail for an IPv6 address. Cover this combination. --- This is only tested on my system with broken IPv6. Could someone test this on an IPv6 capable system and ensure that the IPv6 tests aren't skipped now by running cd tests make virnetsockettest PATH=`pwd`:$PATH LIBVIRT_DEBUG=1 ./virnetsockettest This should print something like this 17:35:09.810: 4102: debug : checkProtocols:83 : Protocols: v4 1 v6 1 on an IPv6 capable system. tests/virnetsockettest.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/tests/virnetsockettest.c b/tests/virnetsockettest.c index f686a15..f6c7274 100644 --- a/tests/virnetsockettest.c +++ b/tests/virnetsockettest.c @@ -45,12 +45,16 @@ checkProtocols(bool *hasIPv4, bool *hasIPv6, int *freePort) { struct ifaddrs *ifaddr = NULL, *ifa; + struct addrinfo hints; + struct addrinfo *ai = NULL; struct sockaddr_in in4; struct sockaddr_in6 in6; int s4 = -1, s6 = -1; int i; int ret = -1; + memset(&hints, 0, sizeof hints); + *hasIPv4 = *hasIPv6 = false; *freePort = 0; @@ -67,6 +71,15 @@ checkProtocols(bool *hasIPv4, bool *hasIPv6, *hasIPv6 = true; } + hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; + hints.ai_family = AF_INET6; + hints.ai_socktype = SOCK_STREAM; + + if (getaddrinfo("::1", "5672", &hints, &ai) != 0) + *hasIPv6 = false; + + freeaddrinfo(ai); + VIR_DEBUG("Protocols: v4 %d v6 %d\n", *hasIPv4, *hasIPv6); freeifaddrs(ifaddr); -- 1.7.0.4

2 2

[libvirt] [PATCH] Move load of AppArmor profile to GenLabel()
by Jamie Strandboge 25 Jun '11

25 Jun '11

Commit 12317957ecd6c37a2fb16275dcdeeacfe25c517 introduced an incompatible architectural change for the AppArmor security driver. Specifically, virSecurityManagerSetAllLabel() is now called much later in src/qemu/qemu_process.c:qemuProcessStart(). Previously, SetAllLabel() was called immediately after GenLabel() such that after the dynamic label (profile name) was generated, SetAllLabel() would be called to create and load the AppArmor profile into the kernel before qemuProcessHook() was executed. With 12317957ecd6c37a2fb16275dcdeeacfe25c517, qemuProcessHook() is now called before SetAllLabel(), such that aa_change_profile() ends up being called before the AppArmor profile is loaded into the kernel (via ProcessLabel() in qemuProcessHook()). This patch addresses the change by making GenLabel() load the AppArmor profile into the kernel after the label (profile name) is generated. SetAllLabel() is then adjusted to only reload_profile() and append stdin_fn to the profile when it is specified. This also makes the AppArmor driver work like its SELinux counterpart with regard to SetAllLabel() and stdin_fn. Passes its part of 'check' and 'syntax-check' (though libvirt_net_rpc_la-virnetmessage.lo failed to compile and po_check failed the syntax check for unrelated reasons). Prior to writing this patch, the issue was discussed on IRC with Daniel Berrange and Eric Blake. Other discussed alternatives were to do a 2 stage qemuProcessHook(), where ProcessLabel() was only called in the second stage after the handshake. In attempting this, it still didn't address the fact that aa_change_profile() was being called on an unloaded profile so it was abandoned. Another idea was to create a second private API call that the AppArmor driver would use to load the profile that would be a no-op for the SElinux driver. I started to go this route, but in the end it was both unneeded and too complicated once I realized I could simply load the profile in GenLabel() and still use SetAllLabel() to reload the profile when stdin_path was specified. The current fix is implemented wholly within the AppArmor driver and I think much cleaner. Reference: https://launchpad.net/bugs/795800 -- Jamie Strandboge | http://www.canonical.com

2 1

[libvirt] [PATCH 0/3] Fix security driver integration for lock manager
by Daniel P. Berrange 25 Jun '11

25 Jun '11

This series ensures we correctly label the sanlock socket that gets leaked to QEMU

3 9

[libvirt] [PATCH] docs: document correct flag name
by Eric Blake 25 Jun '11

25 Jun '11

When adding virDomainGetVcpusFlags in commit ea3f5c6, I did enough rebasing that the doc comments in libvirt.c no longer matched the final chosen enum names in libvirt.h. And now we've gone ahead and deprecated the names VIR_DOMAIN_VCPU_{LIVE,CONFIG}. * src/libvirt.c (virDomainGetVcpusFlags): Fix comment. --- Pushing under the trivial rule. src/libvirt.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/libvirt.c b/src/libvirt.c index 26f338e..76e16ad 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -6919,9 +6919,9 @@ error: * not support it. This function requires privileged access to the * hypervisor. * - * @flags must include either VIR_DOMAIN_VCPU_ACTIVE to query a + * @flags must include either VIR_DOMAIN_AFFECT_LIVE to query a * running domain (which will fail if domain is not active), or - * VIR_DOMAIN_VCPU_PERSISTENT to query the XML description of the + * VIR_DOMAIN_AFFECT_CONFIG to query the XML description of the * domain. It is an error to set both flags. * * If @flags includes VIR_DOMAIN_VCPU_MAXIMUM, then the maximum -- 1.7.4.4

1 0

[libvirt] Block pull API QEMU progress update
by Stefan Hajnoczi 24 Jun '11

24 Jun '11

I am sending this email as an update on the new image streaming for QEMU (aka block pull in libvirt). Adam's libvirt virDomainBlockPull patches were recently merged to allow populating a disk image while the domain is running. The QEMU side implementation is not merged into qemu.git yet because similarity with the live block copy feature has sparked discussion on how to unify the two. The QEMU APIs for image streaming and live block copy may or may not be changed. I think they should stay as they are because they provide good interfaces for those two features. However, it is possible that unifying the implementations of the two features internally necessitates changes to the QEMU APIs. If changes are made, the question becomes whether they require changing the libvirt block pull (and proposed live block copy) API. Right now there is no proposal to change the QEMU APIs for the two features but I think it is useful for libvirt to be aware of the status on these features. Perhaps a precautionary measure like not committing to the APIs until the QEMU patches are merged is worthwhile, just for safety. Marcelo, Kevin, and I are working on unifying the QEMU side implementations of live block copy and image streaming. Hopefully the specifics will be agreed soon and we can then enable these features in QEMU and libvirt. Stefan

3 11

[libvirt] [PATCH] build: avoid python 2.4 build failure
by Eric Blake 24 Jun '11

24 Jun '11

On RHEL 5, I got: /usr/bin/python ./generator.py /usr/bin/python File "./generator.py", line 427 "virStreamFree", # Needed in custom virStream __del__, but free shouldn't ^ SyntaxError: invalid syntax * python/generator.py (function_skip_python_impl): Use same syntax as other skip lists. --- Pushing under the build-breaker rule. However, the build is still broken on RHEL 5, due to this next one that I don't know how to fix (probably we'll have to test in configure.ac whether Py_ssize_t exists, and if not, typedef it ourself in libvirt-override.c): In file included from libvirt-override.c:22: typewrappers.h:159: error: expected declaration specifiers or '...' before 'Py_ssize_t' python/generator.py | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/python/generator.py b/python/generator.py index a3ebcf9..6ce6596 100755 --- a/python/generator.py +++ b/python/generator.py @@ -423,10 +423,10 @@ skip_function = ( ) # Generate C code, but skip python impl -function_skip_python_impl = { +function_skip_python_impl = ( "virStreamFree", # Needed in custom virStream __del__, but free shouldn't # be exposed in bindings -} +) function_skip_index_one = ( "virDomainRevertToSnapshot", -- 1.7.4.4

2 6

[libvirt] [PATCH] maint: typo fixes
by Eric Blake 24 Jun '11

24 Jun '11

* src/xenxs/xen_sxpr.c (xenParseSxprPCI): Comment fix. * tests/object-locking.ml (driverTables): Likewise. * tests/testutils.c (virtTestDifferenceBin): Likewise. --- Pushing under the trivial rule. I noticed the testutils 'world' typo first, then looking through all the other hits for 'world', I noticed the 'wierd' problem. src/xenxs/xen_sxpr.c | 2 +- tests/object-locking.ml | 2 +- tests/testutils.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/xenxs/xen_sxpr.c b/src/xenxs/xen_sxpr.c index b5877bb..13ca015 100644 --- a/src/xenxs/xen_sxpr.c +++ b/src/xenxs/xen_sxpr.c @@ -922,7 +922,7 @@ xenParseSxprPCI(virDomainDefPtr def, * ) * * Normally there is one (device ...) block per device, but in - * wierd world of Xen PCI, once (device ...) covers multiple + * weird world of Xen PCI, once (device ...) covers multiple * devices. */ diff --git a/tests/object-locking.ml b/tests/object-locking.ml index ce3b401..68c414e 100644 --- a/tests/object-locking.ml +++ b/tests/object-locking.ml @@ -48,7 +48,7 @@ let driverTables = [ "virNetworkDriver"; "virStorageDriver"; "virDeviceMonitor"; -(* "virStateDriver"; Disable for now, since shutdown/startup have wierd locking rules *) +(* "virStateDriver"; Disable for now, since shutdown/startup have weird locking rules *) ] (* diff --git a/tests/testutils.c b/tests/testutils.c index d192980..b433204 100644 --- a/tests/testutils.c +++ b/tests/testutils.c @@ -406,7 +406,7 @@ int virtTestDifferenceBin(FILE *stream, } } } - /* Round to nearest boundary of 4, except that last world can be short */ + /* Round to nearest boundary of 4, except that last word can be short */ start -= (start % 4); end += 4 - (end % 4); if (end >= length) -- 1.7.4.4

1 0

[libvirt] [PATCH 0/3] Automatic lease management for sanlock
by Daniel P. Berrange 24 Jun '11

24 Jun '11

The current sanlock plugin requires that the mgmt app manually add leases to the guest configuration. This is undesirable for cases where libvirt is used in a more ad-hoc setup without a centralized management server. This series allows libvirt to automatically create leases for each guest disk, ensuring safety without any mgmt app effort

4 15