Split out the logic of unlinking devices from
qemuDomainNamespaceTeardownHostdev for reuse in other functions.

Use this function in qemuDomainNamespaceSetup* functions which
only require creating one device.

Separate the logic of creating devices from their gathering.

Use this new function in qemuDomainNamespaceSetupHostdev and
qemuDomainNamespaceSetupDisk.

To match the "things/nthings" pattern used in virDomainDef.

To match the "things/nthings" pattern used in virDomainDef.

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

This patch pass event error up to the place where we can
use it. Error is passed only for sync blockjob event mode
as we can't use the error in async mode. In async mode we
just pass the event details to the client thru event API
but current blockjob event API can not carry extra parameter.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

The unprivileged libvirtd does not support nwfilter config, by leaves the
driver active. It is supposed to result in all APIs being an effective
no-op, but several APIs rely on driver->nwfilters being non-NULL, or they
will reference a NULL pointer. Rather than adding checks for NULL in many
places, just make sure  driver->nwfilters is always initialized.
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

There's no reason for the files to have generic- prefix
since they all live under genericxml2xmlindata and
genericxml2xmloutdata directories.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

There's no reason for the files to have qemuxml2xmlout- prefix
since they all live under qemuxml2xmloutdata directory.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

There's no reason for the files to have qemuargv2xml- prefix
since they all live under qemuargv2xmldata directory.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

There's no reason for the files to have qemuagent- prefix
since they all live under qemuagentdata directory.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Commit e93d844b was not enough to fix the permission denied
issue.  We need to apply security labels as well.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1465833Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

SELinux and DAC drivers already have both functions but they were not
exported as public API of security manager.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

gettext, gnutls and libgcrypt are already installed on the
system, so we don't need to request their installation.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NDaniel P. Berrange <berrange@redhat.com>

Installed packages might be outdated by the time the build
runs, so we should update them.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NDaniel P. Berrange <berrange@redhat.com>

The manual page clearly states that

  gettid() is Linux-specific and should not be used in programs
  that are intended to be portable.

Unfortunately, it looks like macOS implemented the functionality
and defined SYS_gettid accordingly, only to deprecate syscall()
altogether with 10.12 (Sierra), released last late year.

To avoid compilation errors, call gettid() on Linux only.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NDaniel P. Berrange <berrange@redhat.com>

As documented in

  https://libvirt.org/downloads.html#schedule
  https://libvirt.org/downloads.html#numbering

the next release will happen in the middle of January 2018 and,
being the first release of a new year, will bring a brand new
major version number with it.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>

Similarly to the previous commit, rename .args files.

The files were renamed using the following commands. From
qemuxml2argvdata:

  for i in qemuxml2argv-*.args; do mv $i ${i#qemuxml2argv-}; done

and then (to fix broken symlinks) from qemuxml2argvdata and
qemuxml2xmloutdata:

  for i in $(find . -xtype l); do \
      ln -sf $(readlink $i | sed 's/qemuxml2argv-//') $i;
  done
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

These XMLs live in a separate directory, there's no need for them
to have a special prefix in addition. It also doesn't play nicely
with ':e' completion in Vim, finding proper file based on
qemuxml2argvtest.c is also needlessly complicated.

The files were renamed using the following commands. From
qemuxml2argvdata:

  for i in qemuxml2argv-*.xml; do mv $i ${i#qemuxml2argv-}; done

and then (to fix broken symlinks) from qemuxml2argvdata and
qemuxml2xmloutdata:

  for i in $(find . -xtype l); do \
      ln -sf $(readlink $i | sed 's/qemuxml2argv-//') $i;
  done
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Noticed the following denial in audit.log when shutting down
an apparmor confined domain

type=AVC msg=audit(1512002299.742:131): apparmor="DENIED"
operation="open" profile="libvirt-66154842-e926-4f92-92f0-1c1bf61dd1ff"
name="/proc/1475/cmdline" pid=2958 comm="qemu-system-x86"
requested_mask="r" denied_mask="r" fsuid=469 ouid=0

Squelch the denial by allowing read access to /proc/<pid>/cmdline.

Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Commit id '74119a03' neglected to clean up @distances when
the numa definition is cleaned up.

Don't use a unary comparison for an int value - compare against zero
directly instead.

Clean up the style a bit w/r/t to not using a unary operator on an
integer value that could be zero - compare vs. zero instead.

Set the def->mem_nodes[*].distances to rdist or ldist inside the
if condition - no need to set outside since the value being set
to is what was fetched.

During cleanup, be sure to initialize the ndistances on error and
use the < 0 comparison not the unary one.

==899== 39 bytes in 1 blocks are definitely lost in loss record 732 of 1,003
==899==    at 0x4C2AEDF: malloc (vg_replace_malloc.c:299)
==899==    by 0x8B68CE7: vasprintf (in /lib64/libc-2.25.so)
==899==    by 0x55498D2: virVasprintfInternal (virstring.c:708)
==899==    by 0x55499E7: virAsprintfInternal (virstring.c:729)
==899==    by 0x2BECFFF0: qemuGetMemoryBackingBasePath (qemu_conf.c:1757)
==899==    by 0x2BF23225: qemuStateInitialize (qemu_driver.c:893)
==899==    by 0x563073D: virStateInitialize (libvirt.c:770)
==899==    by 0x124CC4: daemonRunStateInit (libvirtd.c:834)
==899==    by 0x55521CD: virThreadHelper (virthread.c:206)
==899==    by 0x88D9686: start_thread (in /lib64/libpthread-2.25.so)
==899==    by 0x8BEAEFE: clone (in /lib64/libc-2.25.so)
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

==1277== 8 bytes in 4 blocks are definitely lost in loss record 39 of 131
==1277==    at 0x4C2AEDF: malloc (vg_replace_malloc.c:299)
==1277==    by 0x68BBBC8: xmlStrndup (in /usr/lib64/libxml2.so.2.9.4)
==1277==    by 0x53B1DC2: virXMLPropString (virxml.c:510)
==1277==    by 0x53D696A: virDomainDiskBackingStoreParse (domain_conf.c:8639)
==1277==    by 0x53DA684: virDomainDiskDefParseXML (domain_conf.c:9590)
==1277==    by 0x53F619F: virDomainDefParseXML (domain_conf.c:19233)
==1277==    by 0x53F96EE: virDomainDefParseNode (domain_conf.c:20083)
==1277==    by 0x53F9540: virDomainDefParse (domain_conf.c:20027)
==1277==    by 0x53F95E6: virDomainDefParseFile (domain_conf.c:20053)
==1277==    by 0x44D1D4: testCompareDomXML2XMLFiles (testutils.c:1265)
==1277==    by 0x42FC7C: testXML2XMLActive (qemuxml2xmltest.c:71)
==1277==    by 0x44AD20: virTestRun (testutils.c:180)
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

==861== 3 bytes in 1 blocks are definitely lost in loss record 3 of 168
==861==    at 0x4C2AEDF: malloc (vg_replace_malloc.c:299)
==861==    by 0x8C7FBC8: xmlStrndup (in /usr/lib64/libxml2.so.2.9.4)
==861==    by 0x5DCCDC2: virXMLPropString (virxml.c:510)
==861==    by 0x5DF1232: virDomainDiskSourceNetworkParse (domain_conf.c:8445)
==861==    by 0x5DF1728: virDomainDiskSourceParse (domain_conf.c:8576)
==861==    by 0x5DF41A5: virDomainDiskDefParseXML (domain_conf.c:9238)
==861==    by 0x5E1119F: virDomainDefParseXML (domain_conf.c:19233)
==861==    by 0x5E146EE: virDomainDefParseNode (domain_conf.c:20083)
==861==    by 0x5E14540: virDomainDefParse (domain_conf.c:20027)
==861==    by 0x5E145E6: virDomainDefParseFile (domain_conf.c:20053)
==861==    by 0x4053CC: testCompareXMLToArgv (qemuxml2argvtest.c:455)
==861==    by 0x41F135: virTestRun (testutils.c:180)
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Raw local files do not pass through the backing store detector and thus
the code did not allocate the required backing store terminator for
them. Previously the terminating element would be formatted into the XML
since the default values used for the metadata allowed that. This is a
regression since a693fdba which was not detected in the review.

This patch also reverts all the changes in the test files.

Until now we would skip loading of the backing chain for files which
don't support backing chains only when starting up the VM. Move the
check from qemuProcessPrepareHostStorage with some adaptations so that's
always applied.

Split out clearing of the backing chain prior to other code since it
will be required later and optimize few layers of nested conditions and
loops.

The graphics code is complex and there are a lot of exceptions and
backward compatible combinations.  One of them is the possibility
to configure "spice_auto_unix_socket" in qemu.conf which will convert
all spice graphics with listen type "address" without any address
specified to listen type "socket" when the guest is started.

We don't format this generated socket into migratable XML to make
migration work with older libvirt.  However, spice has another
exception that if autoport='no' and there is no port configured
it is converted to listen type "none".  Because of this we need
to format autoport='yes' to make sure that the listen type will
be the same as the offline XML.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1511407Reviewed-by: NJiri Denemark <jdenemar@redhat.com>
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

In status XML, we do not store the QEMU version information, we only
format all the capabilities. We dropped QEMU_CAPS_PCI_MULTIBUS
in commit 5b783379 which was released in libvirt 3.2.0.

Therefore the only way of telling if the already running domain
at the time of daemon restart has been started with a QEMU that does
use 'pci.0' or not on PPC is to look at the pci-root controller's
alias. This is not an option if the domain has a user-specified alias
for the pci-root.

Instead of reintroducing the capability, assume 'pci.0' when we have
no version information. That way the only left broken use case would
be the combination of user aliases and very old QEMU.

Partially reverts commit 3a37af1e.

https://bugzilla.redhat.com/show_bug.cgi?id=1518148

We do not fill out qemuCaps->arch when parsing status XML.

Use def->os.arch like we do for PPC.

This fixes hotplug after daemon restart for domains that use
a user alias for the implicit pci-root on x86.

https://bugzilla.redhat.com/show_bug.cgi?id=1518148

For some corner cases, virQEMUCapsHasPCIMultiBus depends on the QEMU
version, which is by design not stored in the status XML and therefore
it cannot be fixed for all existing running domains.

Prefer the controller alias read from the status XML when formatting
PCI addresses and only fall back to using virQEMUCapsHasPCIMultiBus
if the alias is a user alias.

This fixes hotplug after daemon restart for domains not using user
aliases.

Partially reverts commit 937f3195.

https://bugzilla.redhat.com/show_bug.cgi?id=1518148

Allow parts of code outside domain_conf to decide whether the alias
is user-specified or not.

The 'wiremode' attribute exists in a couple of Xen XML files, but no code has
ever parsed that value. It was later added to the RNG schema too, again despite
there not being any code which parses it.
Reviewed-by: NJim Fehlig <jfehlig@suse.com>
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The libxlxml2domconfigdata directory was not covered in the RNG schema
tests. This hid a few bugs in both the libxl XML files and the RNG
schema itself.
Reviewed-by: NJim Fehlig <jfehlig@suse.com>
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>