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[libvirt] Errors from unprivileged libvirtd at startup
by Daniel P. Berrange 23 Jun '14

23 Jun '14

Current libvirt git really spews errors to the console at startup when run unprivileged $ ./daemon/libvirtd 2014-06-23 16:55:27.806+0000: 5207: info : libvirt version: 1.2.6 2014-06-23 16:55:27.806+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:00.0/config': Permission denied 2014-06-23 16:55:27.807+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:02.0/config': Permission denied 2014-06-23 16:55:27.808+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:14.0/config': Permission denied 2014-06-23 16:55:27.810+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:16.0/config': Permission denied 2014-06-23 16:55:27.810+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:19.0/config': Permission denied 2014-06-23 16:55:27.811+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1a.0/config': Permission denied 2014-06-23 16:55:27.815+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1b.0/config': Permission denied 2014-06-23 16:55:27.817+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1c.0/config': Permission denied 2014-06-23 16:55:27.824+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:02:00.0/config': Permission denied 2014-06-23 16:55:27.825+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1c.1/config': Permission denied 2014-06-23 16:55:27.826+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:03:00.0/config': Permission denied 2014-06-23 16:55:27.827+0000: 5207: error : virFileReadAll:1297 : Failed to read file '/sys/class/net/wlp3s0/speed': Invalid argument 2014-06-23 16:55:27.828+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1c.2/config': Permission denied 2014-06-23 16:55:27.828+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1d.0/config': Permission denied 2014-06-23 16:55:27.829+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1f.0/config': Permission denied 2014-06-23 16:55:27.829+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1f.2/config': Permission denied 2014-06-23 16:55:27.834+0000: 5207: error : virPCIDeviceConfigOpen:300 : Failed to open config space file '/sys/bus/pci/devices/0000:00:1f.3/config': Permission denied Whatever is doing this needs to skip itfrom unprivileged daemons. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|

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[libvirt] [PATCH v6 0/4] Introduce APIs to extract DHCP leases info
by Nehal J Wani 23 Jun '14

23 Jun '14

This API returns the leases information stored in the DHCP leases file of dnsmasq for a given virtual network. It contacts the bridge network driver, which parses a custom leases file created by libvirt. It supports two methods: 1. Return info for all network interfaces connected to a given virtual network 2. Return information for a particular network interface in a given virtual network by providing its MAC Address v6 * Converted parsing mechanism to JSON. Leases helper program has been added as a separate patch Refer: https://www.redhat.com/archives/libvir-list/2014-May/msg00219.html v5 * Created a helper file to generate custom leases for libvirt. Since dnsmasq doesn't provide the MAC Address in case of DHCPv6, the need for this file was proposed. The design of virNetworkDHCPLeases struct has been updated and the previous use of union has been removed. OOM errors have been taken care of in the remote driver and remote daemon. Discussion on struct design: https://www.redhat.com/archives/libvir-list/2013-October/msg00326.html Discussion on helper file: https://www.redhat.com/archives/libvir-list/2013-October/msg00989.html Refer: http://www.redhat.com/archives/libvir-list/2013-November/msg01085.html v4 * Added support for DHCPv6, updated lease file parsing method Refer: https://www.redhat.com/archives/libvir-list/2013-September/msg01554.html v3 * Mostly small nits, change in MACRO names, use of virSocketAddrGetIpPrefix to retrieve IP prefix from @dom XML. Refer: https://www.redhat.com/archives/libvir-list/2013-September/msg00832.html v2 * Since DHCPv6 is supposed to be suported in future, virNetworkGetDHCPLeasesForMAC changed, prefix and virIPAddrType added in virNetworkDHCPLeases struct. Refer: https://www.redhat.com/archives/libvir-list/2013-September/msg00732.html v1 * Refer: https://www.redhat.com/archives/libvir-list/2013-September/msg00620.html * The need for these APIs were result of a RFC was proposed on the list. Refer: http://www.redhat.com/archives/libvir-list/2013-July/msg01603.html Nehal J Wani (4): net-dhcp-leases: Implement the public APIs net-dhcp-leases: Implement the remote protocol net-dhcp-leases: Private implementation inside network net-dhcp-leases: Add virsh support daemon/remote.c | 185 ++++++++++++++++++++++++++++++++++ include/libvirt/libvirt.h.in | 34 +++++++ src/driver.h | 13 +++ src/internal.h | 5 + src/libvirt.c | 179 +++++++++++++++++++++++++++++++++ src/libvirt_public.syms | 6 ++ src/network/bridge_driver.c | 232 +++++++++++++++++++++++++++++++++++++++++++ src/remote/remote_driver.c | 186 ++++++++++++++++++++++++++++++++++ src/remote/remote_protocol.x | 51 +++++++++- src/remote_protocol-structs | 38 +++++++ src/rpc/gendispatch.pl | 1 + tools/virsh-network.c | 119 ++++++++++++++++++++++ tools/virsh.pod | 6 ++ 13 files changed, 1054 insertions(+), 1 deletion(-) -- 1.9.3

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[libvirt] [PATCH 0/3] Keeping / Dropping capabilities in lxc containers
by Cédric Bosdonnat 23 Jun '14

23 Jun '14

Hi all, I had a request from some users to allow keeping the mknod capability in containers even thought that may be a security threat for the container and host. After discussing it with Dan on IRC, here is a patch series that adds a capabilities XML element in the features section of the domain configuration. It also allows to drop capabilities that are normally kept. Coming with this commit are one for the conversion of LXC configuration to domain XML for the lxc.cap.drop entry, and one commit to extend the documentation. There is one thing I'm not sure how to do best: I had to list all capabilities into an enum for the XML config, and I had to map those to the kernel CAP_* defines. Any improvement idea is welcomed ;) Cédric Bosdonnat (3): lxc: allow to keep or drop capabilities lxc domain from xml: convert lxc.cap.drop lxc: update doc to mention features/capabilities/* domain configuration docs/drvlxc.html.in | 27 +++ docs/schemas/domaincommon.rng | 196 +++++++++++++++++++++ src/conf/domain_conf.c | 93 +++++++++- src/conf/domain_conf.h | 47 +++++ src/libvirt_private.syms | 1 + src/lxc/lxc_cgroup.c | 5 + src/lxc/lxc_container.c | 90 ++++++++-- src/lxc/lxc_native.c | 27 +++ tests/domainschemadata/domain-caps-features.xml | 28 +++ tests/lxcconf2xmldata/lxcconf2xml-blkiotune.xml | 39 ++++ tests/lxcconf2xmldata/lxcconf2xml-cpusettune.xml | 39 ++++ tests/lxcconf2xmldata/lxcconf2xml-cputune.xml | 39 ++++ tests/lxcconf2xmldata/lxcconf2xml-idmap.xml | 39 ++++ .../lxcconf2xmldata/lxcconf2xml-macvlannetwork.xml | 41 +++++ tests/lxcconf2xmldata/lxcconf2xml-memtune.xml | 39 ++++ tests/lxcconf2xmldata/lxcconf2xml-nonenetwork.xml | 41 +++++ tests/lxcconf2xmldata/lxcconf2xml-nonetwork.xml | 39 ++++ tests/lxcconf2xmldata/lxcconf2xml-physnetwork.xml | 41 +++++ tests/lxcconf2xmldata/lxcconf2xml-simple.xml | 41 +++++ tests/lxcconf2xmldata/lxcconf2xml-vlannetwork.xml | 41 +++++ 20 files changed, 935 insertions(+), 18 deletions(-) create mode 100644 tests/domainschemadata/domain-caps-features.xml -- 1.8.4.5

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[libvirt] [PATCH] Fix closedir usage in virNumaGetPages
by Roman Bogorodskiy 23 Jun '14

23 Jun '14

virNumaGetPages calls closedir(dir) in cleanup and dir could be NULL if we jump there from the failed opendir() call. While it's not harmful on Linux, FreeBSD libc crashes [1], so make sure that dir is not NULL before calling closedir. 1: http://lists.freebsd.org/pipermail/freebsd-standards/2014-January/002704.ht… --- src/util/virnuma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/util/virnuma.c b/src/util/virnuma.c index c8e7f40..1048033 100644 --- a/src/util/virnuma.c +++ b/src/util/virnuma.c @@ -836,7 +836,8 @@ virNumaGetPages(int node, VIR_FREE(tmp_free); VIR_FREE(tmp_avail); VIR_FREE(tmp_size); - closedir(dir); + if (dir) + closedir(dir); VIR_FREE(path); return ret; } -- 1.9.0

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[libvirt] [PATCH 0/3] Improve pkg-config files
by Daniel P. Berrange 23 Jun '14

23 Jun '14

This is a small set of fixes and improvements to the pkg-config files, ultimately allowing external apps to build against libvirt source tree Daniel P. Berrange (3): Don't include @LIBS@ in libvirt.pc.in file Add pkg-config files for libvirt-qemu & libvirt-lxc Add pkg-config files to allow deps to build against source tree .gitignore | 3 ++- Makefile.am | 4 +++- configure.ac | 8 +++++++- libvirt-lxc.pc.in | 14 ++++++++++++++ libvirt-qemu.pc.in | 14 ++++++++++++++ libvirt.pc.in | 5 ++++- libvirt.spec.in | 15 ++++++++++++--- mingw-libvirt.spec.in | 2 ++ src/Makefile.am | 8 +++++++- src/libvirt-lxc.pc.in | 18 ++++++++++++++++++ src/libvirt-qemu.pc.in | 18 ++++++++++++++++++ src/libvirt.pc.in | 23 +++++++++++++++++++++++ 12 files changed, 124 insertions(+), 8 deletions(-) create mode 100644 libvirt-lxc.pc.in create mode 100644 libvirt-qemu.pc.in create mode 100644 src/libvirt-lxc.pc.in create mode 100644 src/libvirt-qemu.pc.in create mode 100644 src/libvirt.pc.in -- 1.9.3

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[libvirt] Build failed in Jenkins: libvirt-syntax-check #2398
by Jenkins CI 23 Jun '14

23 Jun '14

See <http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/2398/> ------------------------------------------ Started by upstream project "libvirt-build" build number 2706 Building on master in workspace <http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/ws/> [workspace] $ /bin/sh -xe /tmp/hudson5640577394465354092.sh + make syntax-check GEN bracket-spacing-check GFDL_version 0.51 GFDL_version TAB_in_indentation 0.35 TAB_in_indentation Wundef_boolean 0.19 Wundef_boolean avoid_attribute_unused_in_header 0.25 avoid_attribute_unused_in_header avoid_ctype_macros 0.63 avoid_ctype_macros avoid_if_before_free 6.29 avoid_if_before_free avoid_strcase 0.70 avoid_strcase avoid_write 0.32 avoid_write bindtextdomain 0.26 bindtextdomain cast_of_argument_to_free 0.55 cast_of_argument_to_free cast_of_x_alloc_return_value 0.71 cast_of_x_alloc_return_value changelog 0.25 changelog const_long_option 0.48 const_long_option copyright_check 0.60 copyright_check copyright_format 1.39 copyright_format copyright_usage 1.52 copyright_usage correct_id_types 0.60 correct_id_types curly_braces_style 0.80 curly_braces_style error_message_period 0.43 error_message_period error_message_warn_fatal 0.43 error_message_warn_fatal flags_debug 0.98 flags_debug flags_usage 1.04 flags_usage forbid_const_pointer_typedef 1.06 forbid_const_pointer_typedef forbid_manual_xml_indent 0.52 forbid_manual_xml_indent libvirt_unmarked_diagnostics 1.58 libvirt_unmarked_diagnostics m4_quote_check 0.23 m4_quote_check makefile_TAB_only_indentation 0.23 makefile_TAB_only_indentation makefile_at_at_check 0.18 makefile_at_at_check makefile_conditionals tests/Makefile.am:293:endif maint.mk: match "if FOO" with "endif FOO" in Makefiles make: *** [sc_makefile_conditionals] Error 1 Build step 'Execute shell' marked build as failure

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[libvirt] [PATCH 0/2] util: numa: Fix few issues with hugepage code
by Peter Krempa 23 Jun '14

23 Jun '14

Peter Krempa (2): util: numa: Catch readdir errors in virNumaGetPages util: numa: Stub out hugepage code on non-Linux platforms src/util/virnuma.c | 52 +++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 43 insertions(+), 9 deletions(-) -- 1.9.3

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[libvirt] [PATCH] Report correct error in virNetDevTapCreate
by Ján Tomko 23 Jun '14

23 Jun '14

ioctl returns -1, not the errno value --- src/util/virnetdevtap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virnetdevtap.c b/src/util/virnetdevtap.c index 0b444fa..d64e64f 100644 --- a/src/util/virnetdevtap.c +++ b/src/util/virnetdevtap.c @@ -294,7 +294,7 @@ int virNetDevTapCreate(char **ifname, } if ((flags & VIR_NETDEV_TAP_CREATE_PERSIST) && - (errno = ioctl(fd, TUNSETPERSIST, 1))) { + ioctl(fd, TUNSETPERSIST, 1) < 0) { virReportSystemError(errno, _("Unable to set tap device %s to persistent"), NULLSTR(*ifname)); -- 1.8.5.5

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[libvirt] [PATCH] tests: Fix syntax-check after cdd11151791bc9e61538988438980f41c0185681
by Peter Krempa 23 Jun '14

23 Jun '14

makefile_conditionals tests/Makefile.am:293:endif maint.mk: match "if FOO" with "endif FOO" in Makefiles make: *** [sc_makefile_conditionals] Error 1 --- Notes: Pushing under the build breaker rule and putting on the brown paper box of shame :/ tests/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/Makefile.am b/tests/Makefile.am index 2f762a6..025b847 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -290,7 +290,7 @@ endif WITH_STORAGE if WITH_STORAGE_FS test_programs += virstoragetest -endif +endif WITH_STORAGE_FS if WITH_LINUX test_programs += virscsitest -- 1.9.3

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[libvirt] [PATCH] Fix invalid write in virNumaGetDistances
by Ján Tomko 23 Jun '14

23 Jun '14

==== Invalid write of size 4 ==== at 0x52E678C: virNumaGetDistances (virnuma.c:479) ==== by 0x5396890: nodeCapsInitNUMA (nodeinfo.c:1796) ==== by 0x203C2B: virQEMUCapsInit (qemu_capabilities.c:960) ==== Address 0xe10a1e0 is 0 bytes after a block of size 0 alloc'd ==== at 0x4C2A6D0: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==== by 0x52A10D6: virAllocN (viralloc.c:191) ==== by 0x52E674D: virNumaGetDistances (virnuma.c:470) ==== by 0x5396890: nodeCapsInitNUMA (nodeinfo.c:1796) ==== by 0x203C2B: virQEMUCapsInit (qemu_capabilities.c:960) --- src/util/virnuma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virnuma.c b/src/util/virnuma.c index c8e7f40..c494e17 100644 --- a/src/util/virnuma.c +++ b/src/util/virnuma.c @@ -467,7 +467,7 @@ virNumaGetDistances(int node, if ((max_node = virNumaGetMaxNode()) < 0) goto cleanup; - if (VIR_ALLOC_N(*distances, max_node) < 0) + if (VIR_ALLOC_N(*distances, max_node + 1) < 0) goto cleanup; *ndistances = max_node + 1; -- 1.8.5.5

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