It is very difficult while reading the migration code trying to
understand whether a particular function is being called on the src side
or the dst side, or either. Putting "Src" or "Dst" in the method names will
make this much more obvious. "Any" is used in a few helpers which can be
called from both sides.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
QEMU code does not work well with too big numbers on the JSON monitor so
our monitor code supports sending only numbers up to LLONG_MAX. Avoid a
weird error message by limiting the size of the 'bandwidth' parameter
for block copy.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1532542
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The variable names for the options and information about a command
should have an underscore in places where the virsh command has a
hyphen. The function callback name should capitalize the letter after
the hyphen. This was not used in 'blockcommit', 'blockcopy', 'blockjob',
'blockpull', and 'blockresize' commands.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Commit 2d43f0a2dc dropped virDomainDiskTranslateSourcePool()'s
first argument but failed to update callers in the bhyve driver.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Further cleanup from
commit 0c63c117a2
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Fri Feb 9 15:08:53 2018 +0000
conf: reimplement virDomainNetResolveActualType in terms of public API
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The qemuxml2argvtest does not need to link to the network driver
after this commit:
commit 0c63c117a2
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Fri Feb 9 15:08:53 2018 +0000
conf: reimplement virDomainNetResolveActualType in terms of public API
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
These APIs are not required anywhere outside the migration code so need
not be exported to the rest of the QEMU driver.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The qemuMigrationPrecreateStorage method needs a connection
to access the storage driver. Instead of passing it around,
open it at time of use.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There's a few places in startup code paths which pass around a
virConnectPtr which is no longer required. Specifically, the
qemuProcessStart() method now only requires a non-NULL connection if
autodestroy is requested.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When setting up graphics, we sometimes need to resolve networks,
requiring the caller to pass in a virConnectPtr, except sometimes they
pass in NULL. Use virGetConnectNetwork() to acquire the connection to
the network driver when it is needed.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
During domain startup there are many places where we need to acquire
secrets. Currently code passes around a virConnectPtr, except in the
places where we pass in NULL. So there are a few codepaths where ability
to start guests using secrets will fail. Change to acquire a handle to
the secret driver when needed.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Rather than expecting callers to pass a virConnectPtr into the
virDomainDiskTranslateSourcePool() method, just acquire a connection
to the storage driver when needed.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There is a long standing hack to pass a virConnectPtr into the
qemuMonitorStartCPUs method, so that when the text monitor prompts
for a disk password, we can lookup virSecretPtr objects. This causes
us to have to pass a virConnectPtr around through countless methods
up the call chain....except some places don't have any virConnectPtr
available so have always just passed NULL. We can finally fix this
disastrous design by using virGetConnectSecret() to open a connection
to the secret driver at time of use.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Now that we have the ability to easily open connections to secondary
drivers, eg network:///system, it is possible to reimplement the
virDomainNetResolveActualType method in terms of the public API. This
avoids the need to have the network driver provide a callback for it.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When the test suite is running, we don't want to be triggering the
startup of daemons for the secondary drivers. Thus we must provide a way
to set a custom connection for the secondary drivers, to override the
default logic which opens a new connection.
This will also be useful for code where we have a whole set of separate
functions calls all needing the secret driver. Currently the connection
to the secret driver is opened & closed many times in quick
succession. This will allow us to pre-open a connection temporarily,
improving the performance of startup.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This wires up the previously added Chassis strings XML schema to be able to
generate comamnd line args for QEMU. This requires QEMU >= 2.1 release
containing this patch:
SMBIOS: Build aggregate smbios tables and entry point
https://git.qemu.org/?p=qemu.git;a=commit;h=c97294ec1b9e36887e119589d456557d72ab37b5
Signed-off-by: Zhuang Yanying <ann.zhuangyanying@huawei.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This type of information defines attributes of a system
chassis, such as SMBIOS Chassis Asset Tag.
access inside VM (for example)
Linux: /sys/class/dmi/id/chassis_asset_tag.
Windows: (Get-WmiObject Win32_SystemEnclosure).SMBIOSAssetTag
wirhin Windows PowerShell.
As an example, add the following to the guest XML
<chassis>
<entry name='manufacturer'>Dell Inc.</entry>
<entry name='version'>2.12</entry>
<entry name='serial'>65X0XF2</entry>
<entry name='asset'>40000101</entry>
<entry name='sku'>Type3Sku1</entry>
</chassis>
Signed-off-by: Zhuang Yanying <ann.zhuangyanying@huawei.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The -Wextra flag bundle gained a new warning -Wcast-function-type.
This complains if you cast between two function prototypes where
the number of parameters or their data types are not compatible.
Unfortunately we need such "bad" function casts for our event
callbacks. It is possible to silence the warning by first casting
to the generic "void (*)(void)" function prototype, but that is
rather ugly to add throughout libvirt code.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Previously we've removed the data only in virshUpdateDiskXML when
changing the disk source for the CDROM since the backing store would be
invalid. Move the code into a separate function and callit from
virshFindDisk which is also used when detaching disk.
The detaching code does not necessarily need to get the full backing
chain since it will need to act on the one managed by libvirt anyways
and this also takes care of problems when parts of the backing store
were invalid due to buggy RBD detection code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
We can't really detect all the authentication data in a sane manner for
disk backing chains. Since the old RBD parser parses it in some cases as
the argv->XML convertor requires it, we can't just drop it.
Instead clear any detected authentication data in the code paths related
to disk backing chain lookup and fix the tests to cope with the change.
https://bugzilla.redhat.com/show_bug.cgi?id=1544659
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Similarly to other commands add an argument which allows to check the
XML which would be used to execute the operation instead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The documentation for the JSON/qapi type 'UnixSocketAddress' states that
the unix socket path field is named 'path'. Unfortunately qemu uses
'socket' in case of the gluster driver (despite documented otherwise).
Add logic which will format the correct fields while keeping support of
the old spelling.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1544325
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The postun trigger for libvirt-daemon was defined twice for overlapping
ranges of package verions if systemd support was switched off (which
happens when building on something ancient, such as RHEL-6).
Let's combine the two triggers into the one which is called when
libvirt-daemon < 1.3.0 is uninstalled. As a side effect, virtlockd and
virtlogd might be reloaded twice after an upgrade from libvirt newer
than 1.2.1 and older than 1.3.0 (by postun script from the old libvirt
and postun trigger from the new libvirt).
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The oldest Fedora release supported by the spec file is 26. Checking for
anything older makes no sense.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Building virt-login-shell doesn't really make any sense without LXC and
doing so even breaks "make rpm" since the associated files are installed
but unpackaged (the login-shell sub package already depends on LXC).
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Enabling fuse without LXC does not make a lot of sense because fuse is
used only by LXC.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1515533
We're already checking if IPv4 prefix isn't too long. But we are
not checking if it isn't too short. QEMU supports prefixes longer
than 4 (including). I haven't find anything similar related to
IPv6 in qemu sources.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The array indexes are formatted if the JSON->commandline translator is
translating an array type. It does not at all depend on this function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
virshtest execves the virsh binary. Make sure that it finds the binary's
location independent of the current working directory by specifying the
absolute path as determined by the build environment.
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Instead of storing separately whether the feature is enabled
or not and what resizing policy should be used, store both of
them in a single place.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Instead of storing separately whether the feature is enabled
or not and what driver should be used, store both of them in
a single place.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When no GIC version is specified, we currently default to GIC v2;
however, that's not a great default, since guests will fail to
start if the hardware only supports GIC v3.
Change the behavior so that a sensible default is chosen instead.
That basically means using the same algorithm whether the user
didn't explicitly enable the GIC feature or they explicitly
enabled it but didn't specify any GIC version.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Account for the fact that the default might change based on what
GIC versions are supported by QEMU. That's not the case at the
moment, but it will be soon.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
There are a few stray checks which still live outside of the
switch in virDomainDefFeaturesCheckABIStability() for no good
reason. Move them inside the switch, and update the error
messages to be consistent while at it.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Unlike most other features, VIR_DOMAIN_FEATURE_CAPABILITIES is
of type virDomainCapabilitiesPolicy instead of virTristateSwitch,
so we need to handle it separately for the error message to make
sense.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The compiler can make sure we are handling all features.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Keep them along with other arch/machine type checks for
features instead of waiting until command line generation
time.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The compiler can make sure we are handling all features.
While reworking the logic, also change error messages to a more
consistent style.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We want to perform all feature verification in a single spot, but
some of it (eg. GIC) is currently being performed at command line
generation time, and moving it to PostParse() would cause guests
to disappear. Moving verification to Validate() allows us to
side-step the issue.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This reverts commit 038eb472a0.
On reflection adding defaults for arbitrary guest XML device config
settings to the qemu.conf is not a sustainable path. Removing the
support for rx/tx queue size so that it doesn't set a bad precedent.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Commit 'f0f2a5ec2' neglected to adjust the if condition to split
out the possibility that the @watchdog is NULL when altering the
message to add detail about the model.
Just split out the condition and use previous/original message, but
with the new message code.
Found by Coverity
Signed-off-by: John Ferlan <jferlan@redhat.com>
The previous commit:
commit a455d41e3e
Author: Daniel P. Berrangé <berrange@redhat.com>
Date: Thu Jan 25 09:35:50 2018 +0000
conf: expand network device callbacks to cover resolving NIC type
mistakenly dropped qemuxml2argvtest from the tests due to a typo.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The fix for CVE-2018-6764 introduced a potential deadlock scenario
that gets triggered by the NSS module when virGetHostname() calls
getaddrinfo to resolve the hostname:
#0 0x00007f6e714b57e7 in futex_wait
#1 futex_wait_simple
#2 __pthread_once_slow
#3 0x00007f6e71d16e7d in virOnce
#4 0x00007f6e71d0997c in virLogInitialize
#5 0x00007f6e71d0a09a in virLogVMessage
#6 0x00007f6e71d09ffd in virLogMessage
#7 0x00007f6e71d0db22 in virObjectNew
#8 0x00007f6e71d0dbf1 in virObjectLockableNew
#9 0x00007f6e71d0d3e5 in virMacMapNew
#10 0x00007f6e71cdc50a in findLease
#11 0x00007f6e71cdcc56 in _nss_libvirt_gethostbyname4_r
#12 0x00007f6e724631fc in gaih_inet
#13 0x00007f6e72464697 in __GI_getaddrinfo
#14 0x00007f6e71d19e81 in virGetHostnameImpl
#15 0x00007f6e71d1a057 in virGetHostnameQuiet
#16 0x00007f6e71d09936 in virLogOnceInit
#17 0x00007f6e71d09952 in virLogOnce
#18 0x00007f6e714b5829 in __pthread_once_slow
#19 0x00007f6e71d16e7d in virOnce
#20 0x00007f6e71d0997c in virLogInitialize
#21 0x00007f6e71d0a09a in virLogVMessage
#22 0x00007f6e71d09ffd in virLogMessage
#23 0x00007f6e71d0db22 in virObjectNew
#24 0x00007f6e71d0dbf1 in virObjectLockableNew
#25 0x00007f6e71d0d3e5 in virMacMapNew
#26 0x00007f6e71cdc50a in findLease
#27 0x00007f6e71cdc839 in _nss_libvirt_gethostbyname3_r
#28 0x00007f6e71cdc724 in _nss_libvirt_gethostbyname2_r
#29 0x00007f6e7248f72f in __gethostbyname2_r
#30 0x00007f6e7248f494 in gethostbyname2
#31 0x000056348c30c36d in hosts_keys
#32 0x000056348c30b7d2 in main
Fortunately the extra stuff virGetHostname does is totally irrelevant to
the needs of the logging code, so we can just inline a call to the
native hostname() syscall directly.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The floppy command formatting is special-cased since it does not
directly translate to a single '-device' argument.
Move the code from qemuBuildDiskDriveCommandLine to a new helper
function so that all the related code is together.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
