All our .pl scripts had the executable bit set, except for one.
Make it consistent (even if we invoke the scripts as an argument
to $(PERL) rather than directly).

* src/check-aclrules.pl: Make executable.
Signed-off-by: NEric Blake <eblake@redhat.com>

Syslog is socket activated since at least systemd v35 so we can drop
this dependency. Debian's linitian otherwise complains about it.

References:

    http://www.freedesktop.org/wiki/Software/systemd/syslog/
    http://lintian.debian.org/tags/systemd-service-file-refers-to-obsolete-target.html

All *-info virsh commands output a list of colon-seperated key-val pairs.
But virsh net-info command misses this colon for key "Name" and "UUID".
Signed-off-by: NHao Liu <hliu@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

The case label for VIR_DOMAIN_EVENT_ID_DEVICE_REMOVED did not have its
own break statement but relied on falling through which we probably
don't want.

In the 730af8f2 commit we are fixing broken qemu startup on systems
with ancient qemu. This commit introduces the regression test for that
specific case to make sure we don't break it again.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

On the domain startup, this function is called to dump some info about
the CPUs. At the beginning of the function we check if we aren't running
older qemu which is not exposing the CPUs via 'qom-list'. However, we
are not checking for even older qemus, which throw 'CommandNotFound'
error.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

A USB filter is stored in a hostdev. The original code doesn't
allocate hostdev->info that is expected to be allocated with hostdev.
So use virDomainHostdevDefAlloc() to allocate both as we expect.
Signed-off-by: NRyota Ozaki <ozaki.ryota@gmail.com>

* src/qemu/qemu_command.c (qemuBuildVolumeString): Fix typo.
* src/qemu/qemu_monitor.c (qemuMonitorSend): Likewise.
Signed-off-by: NEric Blake <eblake@redhat.com>

This patch shuts up the following warning of clang
on Mac OS X:

  virsh.c:2761:22: error: assigning to 'char *' from 'const char [6]' discards qualifiers
      [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
      rl_readline_name = "virsh";
                       ^ ~~~~~~~

The warning happens because rl_readline_name on Mac OS X comes
from an old readline header that still uses 'char *', while it
is 'const char *' in readline 4.2 (April 2001) and newer.

Tested on Mac OS X 10.8.5 (clang-500.2.75) and Fedora 19 (gcc 4.8.1).
Signed-off-by: NRyota Ozaki <ozaki.ryota@gmail.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

Added a macro similar to the GLib's GLIB_CHECK_VERSION so that one can
simply do something like:

 #if LIBVIR_CHECK_VERSION(1,1,3)
   /* Call function here that appeared in 1.1.3 and newer */
   virSomeNewFunction();
 #endif

Without a 'return 0' in the stub lxcStartFuse() method, the
compiler warns:

lxc/lxc_fuse.c:374: error: control reaches end of non-void function
[-Wreturn-type]
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The glibc setxid is supposed to be async signal safe, but
libc developers confirm that it is not. This causes a problem
when libvirt_lxc starts the FUSE thread and then runs clone()
to start the container. If the clone() was done before the
FUSE thread has completely started up, then the container
will hang in setxid after clone().

The fix is to avoid creating any threads until after the
container has been clone()'d. By avoiding any threads in
the parent, the child is no longer required to run in an
async signal safe context, and we thus avoid the glibc
bug.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Report the error in virPortAllocatorAcquire instead
of doing it in every caller.

The error contains the port range name instead of the intended
use for the port, e.g.:
Unable to find an unused port in range 'display' (65534-65535)
instead of:
Unable to find an unused port for SPICE

This also adds error reporting when the QEMU driver could not
find an unused port for VNC, VNC WebSockets or NBD migration.

This allows its error messages to be more specific.

Introduced by 7b4a6304.

The connection pointer in the closeCallback data was never
initialized, making the unref in remoteClientCloseFunc a no-op.

This fixes the following leak in virsh when the daemon closes
the connection unexpectedly:

1,179 (288 direct, 891 indirect) bytes in 1 blocks are
   definitely lost in loss record 745 of 792
  at 0x4C2A6D0: calloc (in vgpreload_memcheck-amd64-linux.so)
  by 0x4E9643D: virAllocVar (viralloc.c:558)
  by 0x4ED2425: virObjectNew (virobject.c:190)
  by 0x4F675AC: virGetConnect (datatypes.c:116)
  by 0x4F6EA06: do_open (libvirt.c:1136)
  by 0x4F71017: virConnectOpenAuth (libvirt.c:1481)
  by 0x129FFA: vshReconnect (virsh.c:337)
  by 0x128310: main (virsh.c:2470)

Noticed while revieweing the patches for qemu's new migration state.

* include/libvirt/libvirt.h.in (_virDomainJobInfo): Fix typo,
grammar.
* src/libvirt.c (virDomainGetJobInfo): Add cross reference.
Signed-off-by: NEric Blake <eblake@redhat.com>

s/insallations/installations/
Signed-off-by: NChen Hanxiao <chenhanxiao@cn.fujitsu.com>

QEMU 1.6.0 introduced new migration status: setup
Libvirt does not expect such string in QMP and refuses to migrate with error
"unexpected migration status in setup"

This patch fixes it.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1025108

So far qemuSetupHostdevCGroup was called very early during hotplug, even
before we knew the device we were about to hotplug was actually
available. By calling the function later, we make sure QEMU won't be
allowed to access devices used by other domains.

Another important effect of this change is that hopluging USB devices
specified by vendor and product (but not by their USB address) works
again. This was broken since v1.0.5-171-g7d763aca, when the call to
qemuFindHostdevUSBDevice was moved after the call to
qemuSetupHostdevCGroup, which then used an uninitialized USB address.

https://bugzilla.redhat.com/show_bug.cgi?id=1018267

The aim of virObject refing and urefing is to tell where the object is
to be used and when is no longer needed. Hence any object shouldn't be
used after it has been unrefed, as we might be the last to hold the
reference. The better way is to call virObjectUnref() *after* the last
object usage. In this specific case, the monitor EOF handler was called
after the qemuMonitorIO called virObjectUnref. Not only that @mon was
disposed (which is not used in the handler anyway) but the @mon->vm
which is causing a SIGSEGV:

2013-11-15 10:17:54.425+0000: 20110: error : qemuMonitorIO:688 : internal error: early end of file from monitor: possible problem:
qemu-kvm: -incoming tcp:01.01.01.0:49152: Failed to bind socket: Cannot assign requested address

Program received signal SIGSEGV, Segmentation fault.
qemuProcessHandleMonitorEOF (mon=<optimized out>, vm=0x7fb728004170) at qemu/qemu_process.c:299
299         if (priv->beingDestroyed) {
(gdb) p *priv
Cannot access memory at address 0x0
(gdb) p vm
$1 = (virDomainObj *) 0x7fb728004170
(gdb) p *vm
$2 = {parent = {parent = {magic = 3735928559, refs = 0, klass = 0xdeadbeef}, lock = {lock = {__data = {__lock = 2, __count = 0, __owner = 20110, __nusers = 1, __kind = 0, __spins = 0, __list = {__prev = 0x0,
            __next = 0x0}}, __size = "\002\000\000\000\000\000\000\000\216N\000\000\001", '\000' <repeats 26 times>, __align = 2}}}, pid = 0, state = {state = 0, reason = 0}, autostart = 0, persistent = 0,
  updated = 0, def = 0x0, newDef = 0x0, snapshots = 0x0, current_snapshot = 0x0, hasManagedSave = false, privateData = 0x0, privateDataFreeFunc = 0x0, taint = 304}
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

In the qemuProcessReconnectHelper() a new thread that does all the
interesting work is spawned. The rationale is to not block the daemon
startup process in case of unresponsive qemu. However, the thread
handler is a local variable which gets lost once the control goes out of
scope. Hence the thread gets leaked. We can avoid this if the thread
isn't made joinable.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

The @list->callbacks is an array that is inflated whenever a new event
is added, e.g. via virDomainEventCallbackListAddID(). However, when we
are freeing the array, we free the items within it but forgot to
actually free it.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

These two chunks had to be part of df4283a5. But for some unclear
reason, the weren't. Anyway, these two variables are not used anywhere
within function. They're initialized to NULL and then VIR_FREE()-d. And
there's no reason do do two NOPs, right?
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

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

While trying to compare netfs against my new gluster pool, I
discovered two things:

virt-xml-validate chokes on valid xml produced by 'virsh pool-dumpxml'
[yet another reason that ALL patches that add new xml should be adding
corresponding tests]

When using glusterfs FUSE mounts, you cannot access a subdirectory
of a gluster volume.  The recommended workaround in the gluster
community is to mount the volume to an intermediate location, then
bind-mount the desired subdirectory to the final location.  Maybe
we should teach libvirt to do bind-mounting, but for now I chose to
just document the limitation.

* docs/storage.html.in: Improve documentation.
* docs/schemas/storagepool.rng (sourcefmtnetfs): Allow all
formats, and drop redundant info-vendor.
* tests/storagepoolxml2xmltest.c (mymain): New test.
* tests/storagepoolxml2xmlin/pool-netfs-gluster.xml: New file.
* tests/storagepoolxml2xmlout/pool-netfs-gluster.xml: Likewise.
Signed-off-by: NEric Blake <eblake@redhat.com>

Before:

$ virsh secret-list
UUID                                 Usage
-----------------------------------------------------------
0a81f5b2-8403-7b23-c8d6-21ccc2f80d6f volume /var/lib/libvirt/images/puppyname.img
0a81f5b2-8403-7b23-c8d6-2deadbeefd6f Unused

After:

$ virsh secret-list
 UUID                                  Usage
--------------------------------------------------------------------------------
 0a81f5b2-8403-7b23-c8d6-21ccc2f80d6f  volume /var/lib/libvirt/images/puppyname.img
 0a81f5b2-8403-7b23-c8d6-2deadbeefd6f  Unused

Before:

$ virsh iface-list
Name                 State      MAC Address
--------------------------------------------
br0                  active     f0:de:f1:dc:b8:b0
virbr2               active     52:54:00:61:78:0c

After:

$ virsh iface-list
 Name                 State      MAC Address
---------------------------------------------------
 br0                  active     f0:de:f1:dc:b8:b0
 virbr2               active     52:54:00:61:78:0c

Before:
$ virsh nwfilter-list
UUID                                  Name
----------------------------------------------------------------
651d902c-165c-4bcc-8d73-41319af1e6bc  allow-arp
9ae11362-df6b-407f-8864-3bdf5125bf77  allow-dhcp
53b5a9ed-7d46-480f-a201-6d8a503d6533  allow-dhcp-server

After:
$ virsh nwfilter-list
 UUID                                  Name
------------------------------------------------------------------
 651d902c-165c-4bcc-8d73-41319af1e6bc  allow-arp
 9ae11362-df6b-407f-8864-3bdf5125bf77  allow-dhcp
 53b5a9ed-7d46-480f-a201-6d8a503d6533  allow-dhcp-server

Change the alignment to match the domain listing function.

Before:

$ virsh pool-list
Name                 State      Autostart
-----------------------------------------
boot-scratch         active     no
default              active     no
glusterpool          active     no

$ virsh pool-list --details
Name          State    Autostart  Persistent    Capacity  Allocation  Available
-------------------------------------------------------------------------------
boot-scratch  running  no         yes         117.99 GiB  101.40 GiB  16.60 GiB
default       running  no         yes         117.99 GiB  101.40 GiB  16.60 GiB
glusterpool   running  no         yes          29.40 GiB   44.23 MiB  29.36 GiB

After:

$ virsh pool-list
 Name                 State      Autostart
-------------------------------------------
 boot-scratch         active     no
 default              active     no
 glusterpool          active     no

$ virsh pool-list --details
 Name          State    Autostart  Persistent    Capacity  Allocation  Available
---------------------------------------------------------------------------------
 boot-scratch  running  no         yes         117.99 GiB  101.40 GiB  16.60 GiB
 default       running  no         yes         117.99 GiB  101.40 GiB  16.60 GiB
 glusterpool   running  no         yes          29.40 GiB   44.23 MiB  29.36 GiB

When opening a new connection to the driver, nwfilterOpen
only succeeds if the driverState has been allocated.

Move the privilege check in driver initialization before
the state allocation to disable the driver.

This changes the nwfilter-define error from:
error: cannot create config directory (null): Bad address
To:
this function is not supported by the connection driver:
virNWFilterDefineXML

https://bugzilla.redhat.com/show_bug.cgi?id=1029266

ifdef LIBXL_HAVE_DOMAIN_CREATE_RESTORE_PARAMS hides a multi-line body
for a brace-less else.  Add braces to ensure proper logic is applied.

Without this fix, new domains cannot be started.  Both
libxl_domain_create_new and libxl_domain_create_restore are called when
starting a new domain leading to this error:
libxl: error: libxl.c:324:libxl__domain_rename: domain with name "guest" already exists.
libxl: error: libxl_create.c:800:initiate_domain_create: cannot make domain: -6

The QOM path in qemu that contains the CPUID registers of a running VM
may not be present (introduced in QEMU 1.5).

Since commit d94b7817 we have a regression with QEMU that don't
support reporting of the CPUID register state via the monitor as the
process startup code expects the path to exist.

This patch adds code that checks with the monitor if the requested path
already exists and uses it only in this case.

To allow returning more granular errors, change the error type to an
integer.

There were two separate places with that were stringifying type of a
volume. One of the places was out of sync with types implemented
upstream.

To avoid such problems in the future, this patch adds a common function
to convert the type to string and reuses it across the two said places.

Add an extra space before the first column as we have when listing
domains.

Previous output:

$ virsh vol-list glusterpool
Name                 Path
-----------------------------------------
asdf                 gluster://gluster-node-1/gv0/asdf
c                    gluster://gluster-node-1/gv0/c
cd                   gluster://gluster-node-1/gv0/cd

$ virsh vol-list glusterpool --details
Name  Path                               Type     Capacity  Allocation
----------------------------------------------------------------------
asdf  gluster://gluster-node-1/gv0/asdf  unknown    0.00 B      0.00 B
c     gluster://gluster-node-1/gv0/c     unknown   16.00 B     16.00 B
cd    gluster://gluster-node-1/gv0/cd    unknown    0.00 B      0.00 B

New output:

$ virsh vol-list glusterpool
 Name                 Path
------------------------------------------------------------------------------
 asdf                 gluster://gluster-node-1/gv0/asdf
 c                    gluster://gluster-node-1/gv0/c
 cd                   gluster://gluster-node-1/gv0/cd

$ virsh vol-list glusterpool --details
 Name  Path                               Type     Capacity  Allocation
------------------------------------------------------------------------
 asdf  gluster://gluster-node-1/gv0/asdf  unknown    0.00 B      0.00 B
 c     gluster://gluster-node-1/gv0/c     unknown   16.00 B     16.00 B
 cd    gluster://gluster-node-1/gv0/cd    unknown    0.00 B      0.00 B

As of libvirt 1.1.1 and systemd 205, the cgroups layout used by
libvirt has some changes. Update the 'cgroups.html' file from
the website to describe how it works in a systemd world.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

If the host side of an LXC container console disconnected
and the guest side continued to write data, until the PTY
buffer filled up, the LXC controller would busy wait. It
would repeatedly see POLLHUP from poll() and not disable
the watch.

This was due to some bogus logic detecting blocking
conditions. Upon seeing a POLLHUP we must disable all
reading & writing from the PTY, and setup the epoll to
wake us up again when the connection comes back.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The 'none' machine type is something only intended for use
by libvirt probing capabilities. It isn't something that
is useful for running real VM instances. As such it should
not be exposed to users in the capabilities.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The virQEMUCapsProbeQMPMachineTypes method iterates over machine
types copying them into the qemuCapsPtr object. It only updates
the qemuCaps->nmachinetypes value at the end though. So if OOM
occurs in the middle, the destructor of qemuCapsPtr will not
free the partially initialized machine types.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>