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This patch documents support for managedsave-dumpxml,
managedsave-define and managedsave-edit commands.
Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1487322
In ace45e67ab I tried to fix a problem that we get the reply to
a D-Bus call while we were sleeping. In that case the callback
was never set. So I changed the code that the callback is called
directly in this case. However, I hadn't realized that since the
callback is called out of order it locks the virNetDaemon.
Exactly the very same virNetDaemon object that we are dealing
with right now and that we have locked already (in
virNetDaemonAddShutdownInhibition())
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
We call qemuDomainGetMachineName on domain start. On first
start (after daemon start) pid is 0 and virSystemdGetMachineNameByPID
don't get called. But after domain shutting down pid became -1 so
on next start virSystemdGetMachineNameByPID is called and returned an error.
Error is ignored so it is not critical. But at least on my system
(systemd-219 with extra patches) systemd-machined is crashed on
this request.
This behaviour is triggered by eaf2c9f89.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1484230
When updating a virtio enabled vNIC and trying to change either
of rx_queue_size or tx_queue_size success is reported although no
operation is actually performed. Moreover, there's no way how to
change these on the fly. This is due to way we check for changes:
explicitly for each struct member. Therefore it's easy to miss
one.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1437797
Rather than using refreshVol which essentially only updates the
allocation, capacity, and permissions for the volume, but not
the format which does get updated in a pool refresh - let's use
the same helper that pool refresh uses in order to update the
volume target.
Currently while parsing domain XML we clear the UNIX path if it matches
one of the auto-generated paths by libvirt. After that when the guest
is started new path is generated but the mode is also changed to "bind".
In the real-world use-case the mode should not change, it only happens
if a user provides a mode='connect' and path that matches one of the
auto-generated path or not provides a path at all.
Before *reconnect* feature was introduced there was no issue, but with
the new feature we need to make sure that it's used only with "connect"
mode, therefore we need to move the mode change into parsing in order
to have a proper error reported by validation code.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
The test was introduced by 60135b22db.
The auto-generated path is removed by post-parse callback which
also changes the mode from "connect" to "bind" since the auto-generated
path makes sense only for "bind" mode.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
With gnutls 3.6.0, SHA1 is no longer accepted for certificate
signatures. We must usw SHA256 instead.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Commit e4cb850081 changed the way ssh command line is created by
adding '--' before the hostname in order to fix a potential security
flaw. However it failed to modify the tests, so let's do that.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Inspired by the recent GIT / Mercurial security flaws
(http://blog.recurity-labs.com/2017-08-10/scm-vulns),
consider someone/something manages to feed libvirt a bogus
URI such as:
virsh -c qemu+ssh://-oProxyCommand=gnome-calculator/system
In this case, the hosname "-oProxyCommand=gnome-calculator"
will get interpreted as an argument to ssh, not a hostname.
Fortunately, due to the set of args we have following the
hostname, SSH will then interpret our bit of shell script
that runs 'nc' on the remote host as a cipher name, which is
clearly invalid. This makes ssh exit during argv parsing and
so it never tries to run gnome-calculator.
We are lucky this time, but lets be more paranoid, by using
'--' to explicitly tell SSH when it has finished seeing
command line options. This forces it to interpret
"-oProxyCommand=gnome-calculator" as a hostname, and thus
see a fail from hostname lookup.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When recreating folders with namespaces, the directory type was not
being handled at all. It's not special, we probably just didn't know
that that can be used as a volume path as well. The code failed
gracefully, but we want to allow that so that we can use <disk
type='dir'> in domains again.
Partially-resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1443434
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Our backing probing code handles directory file types properly in
virStorageFileGetMetadataRecurse(), by that I mean it leaves them
alone. However its caller, the virStorageFileGetMetadata() resets the
type to raw before probing, without even checking the type. We need
to special-case TYPE_DIR in order to achieve desired results.
Also, in order to properly test this, we need to stop resetting format
of volumes in tests for TYPE_DIR (probably the reason why we didn't
catch that and why the test data didn't need to be modified).
Partially-resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1443434
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This commit adds qemu driver implementation to edit xml
configuration of managed save state file of a domain.
Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>
This commit adds qemu driver implementation to get xml description
for managed save state domain.
Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>
Similar to domainSaveImageDefineXML this commit adds domainManagedSaveDefineXML
API which allows to edit domain's managed save state xml configuration.
Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>
Similar to domainSaveImageGetXMLDesc this commit adds domainManagedSaveGetXMLDesc
API which allows to get the xml of managed save state domain.
Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1476866
For some reason, we completely ignore <on_reboot/> setting for
domains. The implementation is simply not there. It never was.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This API is definitely modifying state of @vm. Therefore it
should grab a job.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
At some places we either already have synchronous job or we just
released it. Also, some APIs might want to use this code without
having to release their job. Anyway, the job acquire code is
moved out to qemuDomainRemoveInactiveJob so that
qemuDomainRemoveInactive does just what it promises.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We can now check for the error and not care about the return value as
it will be properly handled in virBufferContentAndReset() anyway.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
The function is useful even without using the return value. And if
needed, the return value can be obtained by other calls as well. The
potential for clean-up can be seen in the following patch.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Otherwise longer domain names might generate paths that are too long
to be created. This follows what other parts of the code do as well.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1453194
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
We always truncated the name at 20 bytes instead of characters. In
case 20 bytes were in the middle of a multi-byte character, then the
string became invalid and various parts of the code would error
out (e.g. XML parsing of that string). Let's instead properly
truncate it after 20 characters instead.
We cannot test this in our test suite because we would need to know
what locales are installed on the system where the tests are ran and
if there is supported one (most probably there will be, but we cannot
be 100% sure), we could initialize gettext in qemuxml2argvtest, but
there would still be a chance of getting two different (both valid,
though) results.
In order to test this it is enough to start a machine with a name for
which trimming it after 20 bytes would create invalid sequence (e.g.
1234567890123456789č where č is any multi-byte character). Then start
the domain and restart libvirtd. The domain would disappear because
such illegal sequence will not go through the XML parser. And that's
not a bug of the parser, it should not be in the XML in the first
place, but since we don't use any sophisticated formatter, just
mash some strings together, the formatting succeeds.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1448766
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
The reconnect attribute for chardev devices in QEMU is used to
configure the reconnect timeout in seconds. Setting '0' value disables
the reconnect functionality thus we don't allow to set '0' for QEMU.
To disable the reconnect user should use <reconnect enabled='no'/>.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1254971
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This reverts commit 92840eb3a7.
More recent reviews/changes don't have the vir*ObjNew APIs
consuming the @def, so remove from Interface as well. Changes
needed to also deal with conflicts from commit id '46f5eca4'.
Signed-off-by: John Ferlan <jferlan@redhat.com>
3 out of 4 uses of gl_WARN_ADD() were incorrectly adding "" around
the argument, which in turn resulted in the argument being used
unquoted (configure had gl_positive=""-fstack-protector-all"",
rather than the intended gl_positive="-fstack-protector-all").
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Commit 94c465d0 refactored the logging setup phase but introduced an
issue, where the daemon ignores verbose mode when there are no outputs
defined and the default must be used. The problem is that the default
output was determined too early, thus ignoring the potential '--verbose'
option taking effect. This patch postpones the creation of the default
output to the very last moment when nothing else can change. Since the
default output is only created during the init phase, it's safe to leave
the pointer as NULL for a while, but it will be set eventually, thus not
affecting runtime.
Patch also adjusts both the other daemons.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1442947
Signed-off-by: Erik Skultety <eskultet@redhat.com>
