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vzDomainMigrateConfirm3Params is whitelisted. Otherwise we need to
move removing domain from domain list from perform to confirm
step. This would further imply adding a flag and check that migration
is in progress to prohibit mistakenly (maliciously) removing domains
on confirm step. vz version of p2p also need to be fixed to include confirm step.
One would also need to add means to cleanup pending migration
on client disconnect as now is has state across several API
calls.
On the other hand current version of confirm step is totaly
harmless thus it is easier to whitelist it at the moment.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
This way we make naming consistent to API calls and make subsequent
ACL checks possible (otherwise ACL check would discover name
discrepancies).
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
ACL check on perform step should be in API call itself to make ACL
checking script pass. Thus we need to reorganize code to obtain
domain object in perform API itself. Most of this is straight
forward, the only nuance is dropping locks on lengthy remote
operations.
The other motivation is to have only perform step ACL checks for
p2p migration instead of both begin in perform if we can leave
ACL check in vzDomainMigratePerformStep.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
We need it to prepare the calls for ACL checks otherwise ACL checking
script will fail.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
This action deserves its own function and makes main API call
structure much cleaner.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
The original motivation is to expand API calls like start/stop etc so that
the ACL checks could be added. But this patch has its own befenits.
1. functions like prlsdkStart/Stop use common routine to wait for
job without domain lock. They become more self contained and do
not return intermediate PRL_RESULT.
2. vzDomainManagedSave do not update cache twice.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1367259
Crash occurs because 'secrets' is being dereferenced in call:
if (qemuDomainSecretSetup(conn, priv, secinfo, disk->info.alias,
VIR_SECRET_USAGE_TYPE_VOLUME, NULL,
&src->encryption->secrets[0]->seclookupdef,
true) < 0)
(gdb) p *src->encryption
$1 = {format = 2, nsecrets = 0, secrets = 0x0, encinfo = {cipher_size = 0,
cipher_name = 0x0, cipher_mode = 0x0, cipher_hash = 0x0, ivgen_name = 0x0,
ivgen_hash = 0x0}}
(gdb) bt
priv=priv@entry=0x7fffc03be160, disk=disk@entry=0x7fffb4002ae0)
at qemu/qemu_domain.c:1087
disk=0x7fffb4002ae0, vm=0x7fffc03a2580, driver=0x7fffc02ca390,
conn=0x7fffb00009a0) at qemu/qemu_hotplug.c:355
Upon entry to qemuDomainAttachVirtioDiskDevice, src->encryption points
at a valid 'secret' buffer w/ nsecrets == 1; however, the call to
qemuDomainDetermineDiskChain will call virStorageFileGetMetadata
and eventually virStorageFileGetMetadataInternal where the src->encryption
was overwritten when probing the volume.
Commit id 'a48c7141' added code to virStorageFileGetMetadataInternal
to determine if the disk/volume would use/need encryption and allocated
a meta->encryption. This overwrote an existing encryption buffer
already provided by the XML
This patch adds a check for meta->encryption already present before
just allocating and overwriting an existing buffer. It then checks the
existing encryption data to ensure the XML provided format for the
disk matches the expected format read from the disk and errors if there
is a mismatch.
For some unknown reason the original implementation of the <forwarder>
element only took advantage of part of the functionality in the
dnsmasq feature it exposes - it allowed specifying the ip address of a
DNS server which *all* DNS requests would be forwarded to, like this:
<forwarder addr='192.168.123.25'/>
This is a frontend for dnsmasq's "server" option, which also allows
you to specify a domain that must be matched in order for a request to
be forwarded to a particular server. This patch adds support for
specifying the domain. For example:
<forwarder domain='example.com' addr='192.168.1.1'/>
<forwarder domain='www.example.com'/>
<forwarder domain='travesty.org' addr='10.0.0.1'/>
would forward requests for bob.example.com, ftp.example.com and
joe.corp.example.com all to the DNS server at 192.168.1.1, but would
forward requests for travesty.org and www.travesty.org to
10.0.0.1. And due to the second line, requests for www.example.com,
and odd.www.example.com would be resolved by the libvirt network's own
DNS server (i.e. thery wouldn't be immediately forwarded) even though
they also match 'example.com' - the match is given to the entry with
the longest matching domain. DNS requests not matching any of the
entries would be resolved by the libvirt network's own DNS server.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1331796
If you define a libvirt virtual network with one or more IP addresses,
it starts up an instance of dnsmasq. It's always been possible to
avoid dnsmasq's dhcp server (simply don't include a <dhcp> element),
but until now it wasn't possible to avoid having the DNS server
listening; even if the network has no <dns> element, it is started
using default settings.
This patch adds a new attribute to <dns>: enable='yes|no'. For
backward compatibility, it defaults to 'yes', but if you don't want a
DNS server created for the network, you can simply add:
<dns enable='no'/>
to the network configuration, and next time the network is started
there will be no dns server created (if there is dhcp configuration,
dnsmasq will be started with "port=0" which disables the DNS server;
if there is no dhcp configuration, dnsmasq won't be started at all).
The new forward mode 'open' is just like mode='route', except that no
firewall rules are added to assure that any traffic does or doesn't
pass. It is assumed that either they aren't necessary, or they will be
setup outside the scope of libvirt.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=846810
==18324== 32 bytes in 1 blocks are still reachable in loss record 41 of 114
==18324== at 0x4C2C070: calloc (vg_replace_malloc.c:623)
==18324== by 0x4EA479B: virAlloc (viralloc.c:144)
==18324== by 0x4EA674A: virBitmapNewQuiet (virbitmap.c:77)
==18324== by 0x4EA67F7: virBitmapNew (virbitmap.c:106)
==18324== by 0x4EC777D: dnsmasqCapsNewEmpty (virdnsmasq.c:801)
==18324== by 0x4EC781B: dnsmasqCapsNewFromBuffer (virdnsmasq.c:815)
==18324== by 0x407CF4: mymain (networkxml2conftest.c:99)
==18324== by 0x409CF0: virTestMain (testutils.c:982)
==18324== by 0x4080EA: main (networkxml2conftest.c:136)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This patch fixes a bug which occurs when we check a bus and unit number
for a new attached disk. We should do this check in ValidadionCallback,
not in PostParse callback. Because in PostParse we have not initialized
disk->info.addr.drive struct yet.
Move part of code from domainPostParseCallback to domainValidateCallback
and part from devicesPostParseCallback to deviceValidateCallback.
PostParse callbacks are for modification data.
ValidateCallbacks are only for checks.
While dettaching/attaching device in OpenStack, nova
calls vzDomainDettachDevice twice, because the update of the internal
configuration of the ct comes a bit latter than the update event.
As the result, we suffer from the second call to dettach the same device.
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
If we are going to ignore return value of a functions
that can raise an error, it's not enough to use ignore_value
construction. We should explicitly call virResetLastError
Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
First, make function logPrlEventErrorHelper be void and only
print information (if any) from an event.
Second, don't rewrite original error with any errors we get
during parsing event info.
Third, ignore PRL_ERR_NO_DATA at all.
Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
The script was returning success unless it failed on the last file.
This went unnoticed because sc_prohibit_long_lines forbids lines
longer than 90 characters in .arg[sv] files.
Check whether the disable-legacy property is present on the following
devices:
virtio-balloon-pci
virtio-blk-pci
virtio-scsi-pci
virtio-serial-pci
virtio-9p-pci
virtio-net-pci
virtio-rng-pci
virtio-gpu-pci
virtio-input-host-pci
virtio-keyboard-pci
virtio-mouse-pci
virtio-tablet-pci
Assuming that if QEMU knows other virtio devices where this property
is applicable, it will have at least one of these devices.
Added in QEMU by:
commit e266d421490e0ae83044bbebb209b2d3650c0ba6
virtio-pci: add flags to enable/disable legacy/modern
https://bugzilla.redhat.com/show_bug.cgi?id=1182074
Since libvirt still uses a legacy qemu arg format to add a disk, the
manner in which the 'password-secret' argument is passed to qemu needs
to change to prepend a 'file.' If in the future, usage of the more
modern disk format, then the prepended 'file.' can be removed.
Fix based on Jim Fehlig <jfehlig@suse.com> posting and subsequent
upstream list followups, see:
http://www.redhat.com/archives/libvir-list/2016-August/msg00777.html
for details. Introduced by commit id 'a1344f70'.
Modify virDomainDefGetVcpuSched to emit an error message if
virDomainDefGetVcpu returns NULL meaning the vcpu could not
be found. Prior to commit id '9cc931f0b' the error message
would have been issued in virDomainDefGetVcpu.
The code that setups listen types may change a listen type from address to
socket based on configuration from qemu.conf. This needs to be done before we
reserve/allocate ports that won't be used.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1364843
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Ports are valid only for listen types 'address' and 'network', other listen
types doesn't use them so we should not try to reserve any ports.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The first argument should be const char ** instead of
char **, because this is a search function and as such it
doesn't, and shouldn't, alter the haystack in any way.
This change means we no longer have to cast arrays of
immutable strings to arrays of mutable strings; we still
have to do the opposite, though, but that's reasonable.
When commit id '6dfb4507' refactored where the iothreadsched data was
stored, the error message for when the virDomainIOThreadIDFind failed
to find an iothreadid ("iothreadsched attribute 'iothreads' uses
undefined iothread ids") was lost. This led to the possibility that
someone would try to use it, but receive the generic message "An error
occurred, but the cause is unknown".
This patch adds the error message back so that someone will know that
they have an invalid configuration.
Signed-off-by: John Ferlan <jferlan@redhat.com>
All other modes of qemuDomainSetVcpusFlags have helpers so finish the
work by splitting the regular code into a new function.
This patch also touches up the coding (spacing) style.
If any of the devices referenced a USB hub that does not exist,
defining the domain would either fail with:
error: An error occurred, but the cause is unknown
(if only the last hub in the path is missing)
or crash.
Return a proper error instead of crashing.
https://bugzilla.redhat.com/show_bug.cgi?id=1367130
Mention whether it was the live or persistent definition which caused an
error reported and explicitly error out in case when attempting to set
maximum vcpu count for a live domain.
<filesystem type='ram' accessmode='passthrough'>
<source usage='524288' units='KiB'/>
<target dir='/dev/shm'/>
</filesystem>
would lead to lxcContainerMountAllFS calling STRPREFIX
on a NLL pointer because it failed to check if fs->src->path
was non-NULL. This is a regression caused by
commit da665fbd48
Author: Olga Krishtal <okrishtal@virtuozzo.com>
Date: Thu Jul 14 16:52:38 2016 +0300
filesystem: adds possibility to use storage pool as fs source
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
<filesystem type='ram' accessmode='passthrough'>
<source usage='524288' units='KiB'/>
<target dir='/dev/shm'/>
</filesystem>
would lead to lxcContainerResolveSymlinks calling
access(NULL) because it failed to check if fs->src->path
was non-NULL. This is a regression caused by
commit da665fbd48
Author: Olga Krishtal <okrishtal@virtuozzo.com>
Date: Thu Jul 14 16:52:38 2016 +0300
filesystem: adds possibility to use storage pool as fs source
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Because of change in caaa1bd357 this macro is no under
#ifdef block. That means it needs to be re-intended correctly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Commit 11567cf added some libxl tests into domaincapstest and
added libvirt_driver_libxl_impl.la to domaincapstest_LDADD.
This causes link fail on systems without GNU regex implementation:
gmake[2]: Entering directory '/usr/home/novel/code/libvirt/tests'
CCLD domaincapstest
../src/.libs/libvirt_driver_libxl_impl.a(libvirt_driver_libxl_impl_la-libxl_capabilities.o):
In function `libxlMakeCapabilities':
libxl/libxl_capabilities.c:(.text+0x6b2): undefined reference to
`rpl_regcomp'
libxl/libxl_capabilities.c:(.text+0x6d0): undefined reference to
`rpl_regerror'
libxl/libxl_capabilities.c:(.text+0x803): undefined reference to
`rpl_regexec'
libxl/libxl_capabilities.c:(.text+0xa58): undefined reference to
`rpl_regfree'
clang-3.8: error: linker command failed with exit code 1 (use -v to
see invocation)
This happens because on these system it tries to use gnulib's builtin
regex implementation, but doesn't link to gnulib.
Fix by adding $(GNULIB_LIBS) along with libvirt_driver_libxl_impl.la to
domaincapstest_LDADD.
