This fixes virCgroupEnableMissingControllers where virCgroupRemove
was not called in case virCgroupMakeGroup failed.
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

The case where we need path of any controller is only for internal use
so move it out to a different function.
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

The 'mntDir' is part of 'struct mntent' as a result of getmntent_r
therefore we should not mangle with it.
Reviewed-by: NJán Tomko <jtomko@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

aarch64-acpi-nouefi and hostdev-scsi-boot are unused. Noticed when
checking whether '-nodefconfig' is still used by libvirt.

Unused since their introduction in commit deb38c45 and bab6ee6b
respectively.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

This patch ensures that changes in attributes of interfaces will emit
errors except if they are missing from the XML.
Previously we were falsely reporting successful updates, because some
changed attributes got overwritten before the validity checks.

https://bugzilla.redhat.com/show_bug.cgi?id=1599513Signed-off-by: NKaterina Koukiou <kkoukiou@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

Due to kernel upstream change 338d0be4 ("apparmor: fix ptrace read check")
libvirt now hits apparmor denies like:
  apparmor="DENIED" operation="ptrace" profile="/usr/sbin/libvirtd"
  pid=4409 comm="libvirtd" requested_mask="read" denied_mask="read"
  peer="libvirt-14e92a75-7668-4b97-8f92-322fc1b9c78a"

Extend the ptrace rule to also allow 'ptrace (read)' for libvirtd to work
with these newer kernels.

Fixes: https://bugs.launchpad.net/bugs/1788603Reported-by: NThadeu Lima de Souza Cascardo <thadeu.cascardo@canonical.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>
Acked-by: NJamie Strandboge <jamie@canonical.com>
Signed-off-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>

qemuProcessInitCpuAffinity prevents a VM from getting started on a
platform that uses cpu affinity wrapper stubs e.g. macOS.

The patch adds qemuProcessInitCpuAffinity stub on all platforms without
HAVE_SCHED_GETAFFINITY or HAVE_BSD_CPU_AFFINITY.
Signed-off-by: NRoman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Fixes:
https://www.redhat.com/archives/libvir-list/2017-January/msg00978.html

QEMU is probed through monitor fd to check capabilities during libvirtd init.
The monitor fd is closed after probing by virQEMUCapsInitQMPCommandFree
that calls virQEMUCapsInitQMPCommandAbort that calls qemuMonitorClose,
the latter one notifies the event loop via an interrupt handle in
qemuMonitorUnregister and after then closes monitor fd.

There could be a case when interrupt is sent after eventLoop is unlocked
but before virEventPollRunOnce blocks in poll, shortly before file
descriptor is closed by qemuMonitorClose. Then poll receives closed monitor
fd in fdset and returns EBADF.

EBADF is not mentioned as a valid errno on macOS poll man-page but such
behaviour can appear release-to-release, according to cpython:
https://github.com/python/cpython/blob/master/Modules/selectmodule.c#L1161

The change also fixes the issue in qemucapabilitiestest. It returns
Bad file descriptor message 25 times without the fix.
Signed-off-by: NRoman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Save us hassle in the list if anybody would read this.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>

Now that they are not linked any more remove them.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

The patches used as an example for the api_extension manual don't hold
up to the current standards any more. Carefully remove links and
mentions of the patches from the docs.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJán Tomko <jtomko@redhat.com>

The capability was usable since qemu 1.3 so we can remove all the
detection code.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

All supported qemus support FD passing so modify the tests to test the
proper code path.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Allow mocking of the file descriptor numbers used for the TPM
passthrough mode by extracting the relevant code into an exported
function.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Allow FDs which are marked as safe for FD passing.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

For versions where we can probe that the arguments are optional we can
perform the probing by a schema query rather than sending a separate
command to do so.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Add a new modifier character '*' which will select given schema entry
only when it is optional (denoted by the presence of the 'default' key).
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Split it into a function that returns the whole schema entry so that we
can do additional checks and a helper getting the type string from the
schema entry.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Introduce a few variables so that we can easily access the modifier
character and also don't have to do pointer arithmetic when selecting
the schema entries. This will simplify adding of new modifier
characters.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1613746

When shrinking the capacity of a qcow2 or luks volume using
the qemu-img program, the --shrink qualifier must be added.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1609454

Add some cautionary words related to the create and delete
NWFilter Binding use cases and possible issues that may result
to the virsh nwfilter-binding-{create|delete} descriptions
and the virNWFilterBinding{CreateXML|Delete) API descriptions.

Essentially summarizing commit 2d9318b6 without using the
shoot yourself in the foot wording.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1611320

Generation of the ACL API policy is a "automated process"
based on this perl script which "worked" with the changes to
add nwfilter binding API's because they had the "nwfilter"
prefix; however, the generated output name was incorrect
based on the remote protocol algorithm which expected to
generate names such as 'nwfilter-binding.action' instead
of 'nwfilter.binding-action'.

This effectively changes src/access/org.libvirt.api.policy entries:

  org.libvirt.api.nwfilter.binding-create ==>
      org.libvirt.api.nwfilter-binding.create

  org.libvirt.api.nwfilter.binding-delete ==>
      org.libvirt.api.nwfilter-binding.delete

  org.libvirt.api.nwfilter.binding-getattr ==>
      org.libvirt.api.nwfilter-binding.getattr

  org.libvirt.api.nwfilter.binding-read ==>
      org.libvirt.api.nwfilter-binding.read
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>
Reviewed-by: NDaniel P. Berrangé <berrange@redhat.com>

Extract the code used to probe for the functionality so that it does not
litter the code used for actual work.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Starting from qemu 2.7 the 'device' argument is in fact a name of the
job itself. Change our APIs accordingly and adjust the error message.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

The API deals with a block job so use the common error reporting
function for it.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Move all relevant APIs dealing with existing jobs together.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

The API does not report any special job-related error so the generic
error function should be used.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Now that the job name is used in single place in the respective
functions remove the temporary strings.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Report the generic errors using the existing function so that we don't
reimplement the same functionality multiple times.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Both were removed prior to qemu v1.2.0-rc0 when switching to the new
error format where almost all error types were converted to GenericError.

Relevant qemu commits are <de253f14912e> and <df1e608a01eb0>
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

We're going to need to assign virtio-mmio addresses to non-ARM
guests soon, so let's create a generic wrapper that calls to
the architecture-specific implementation.
Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>