Move the xmlopt and caps arguments to the end of the argument list.

This patch adds instrumentation that will allow hypervisor drivers to
fill and validate domain and device definitions after parsed by the XML
parser.

With this patch, after the XML is parsed, a callback to the driver is
issued requesting to fill and validate driver specific details of the
configuration. This allows to use sensible defaults and checks on a per
driver basis at the time the XML is parsed.

Two callback pointers are stored in the new virDomainXMLConf object:
* virDomainDeviceDefPostParseCallback (devicesPostParseCallback)
  - called for a single device parsed and for every single device in a
    domain config. A virDomainDeviceDefPtr is passed along with the
    domain definition and virCaps.

* virDomainDefPostParseCallback, (domainPostParseCallback)
  - A callback that is meant to process the domain config after it's
  parsed.  A virDomainDefPtr is passed along with virCaps.

Both types of callbacks support arbitrary opaque data passed for the
callback functions.

Errors may be reported in those callbacks resulting in a XML parsing
failure.

This patch is the result of running:

for i in $(git ls-files | grep -v html | grep -v \.po$ ); do
  sed -i -e "s/virDomainXMLConf/virDomainXMLOption/g" -e "s/xmlconf/xmlopt/g" $i
done

and a few manual tweaks.

The virCaps structure gathered a ton of irrelevant data over time that.
The original reason is that it was propagated to the XML parser
functions.

This patch aims to create a new data structure virDomainXMLConf that
will contain immutable data that are used by the XML parser. This will
allow two things we need:

1) Get rid of the stuff from virCaps

2) Allow us to add callbacks to check and add driver specific stuff
after domain XML is parsed.

This first attempt removes pointers to private data allocation functions
to this new structure and update all callers and function that require
them.

To enable virCapabilities instances to be reference counted,
turn it into a virObject. All cases of virCapabilitiesFree
turn into virObjectUnref
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The duplicate VM checking should be done atomically with
virDomainObjListAdd, so shoud not be a separate function.
Instead just use flags to indicate what kind of checks are
required.

This pair, used in virDomainCreateXML:

   if (virDomainObjListIsDuplicate(privconn->domains, def, 1) < 0)
     goto cleanup;
   if (!(dom = virDomainObjListAdd(privconn->domains,
                                   privconn->caps,
                                   def, false)))
     goto cleanup;

Changes to

   if (!(dom = virDomainObjListAdd(privconn->domains,
                                   privconn->caps,
                                   def,
                                   VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
                                   NULL)))
     goto cleanup;

This pair, used in virDomainRestoreFlags:

   if (virDomainObjListIsDuplicate(privconn->domains, def, 1) < 0)
     goto cleanup;
   if (!(dom = virDomainObjListAdd(privconn->domains,
                                   privconn->caps,
                                   def, true)))
     goto cleanup;

Changes to

   if (!(dom = virDomainObjListAdd(privconn->domains,
                                   privconn->caps,
                                   def,
                                   VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
                                   VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
                                   NULL)))
     goto cleanup;

This pair, used in virDomainDefineXML:

   if (virDomainObjListIsDuplicate(privconn->domains, def, 0) < 0)
     goto cleanup;
   if (!(dom = virDomainObjListAdd(privconn->domains,
                                   privconn->caps,
                                   def, false)))
     goto cleanup;

Changes to

   if (!(dom = virDomainObjListAdd(privconn->domains,
                                   privconn->caps,
                                   def,
                                   0, NULL)))
     goto cleanup;

As a step towards making virDomainObjList thread-safe turn it
into an opaque virObject, preventing any direct access to its
internals.

As part of this a new method virDomainObjListForEach is
introduced to replace all existing usage of virHashForEach

The APIs names for accessing the domain list object are
very inconsistent. Rename them all to have a standard
virDomainObjList prefix.

Be sure to VIR_FREE(accel) and moved virDomainVideoDefFree() within no_memory
label to be consistent

Resolve resource leak in parallelsApplyIfaceParams() when the 'oldnet' is
allocated locally. Also virCommandFree(cmd) as necessary.

The  virDomainObj, qemuAgent, qemuMonitor, lxcMonitor classes
all require a mutex, so can be switched to use virObjectLockable
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Commit id ac1c77f0 removed the "os" field in "parallelsDomObj" that
commit id aa296e6c had added and the data is not used by the function.

Convert the host capabilities and domain config structs to
use the virArch datatype. Update the parsers and all drivers
to take account of datatype change
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Network adapters of type 'routed' is a special case. Other adapters
have 'network' parameter in prlctl's output instead.

Routed network adapters should be connected to 'routed' network
from libvirt's view.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Parallels Cloud Server uses virtual networks model for network
configuration. It uses own tools for virtual network management.
So add network driver, which will be responsible for listing
virtual networks and performing different operations on them
(in consequent patched).

This patch only allows listing virtual network names, without
any parameters like DHCP server settings.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

This macro will be used in another file in the next
patch, so move it to common header file.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Allow changing network interfaces in domain configuration.

ifname is used as iterface identifier: if there is interface
with some ifname in old config and there are no interfaces with
such name in the new config - issue prlctl command to delete
the network interface. And vice versa - if interface with
some ifname exists only in new config - issue prlctl command
to create it.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Parse network interfaces info from prlctl output.

Parallels Cloud Server uses virtual networks model for
network configuration: You can add network adapter to
VM and connect it to some predefined virtual network.

Fill type, mac, network name and linkstate fields of
virDomainNetDef structure.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

If some hard disk is not found in new domain configuration, it
should be removed.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

New VM will have default values for all parameters, like
cpu number, we have to change its configuration as provided
by xml definition, given to parallelsDomainDefineXML.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Implement creation of new disks - if a new disk found
in configuration, find a volume by disk path and
actually create a disk image by issuing prlctl command.
If it's successfully finished - remove the file with volume
definition.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Add function for convertion bus from libvirt's numeric constant
to a name, used in a parallels command-line tools.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

There are no storage pools in Parallels Cloud Server -
All VM data stored in a single directory: config, snapshots,
memory dump together with disk images.

Let's look through list of VMs and create a storage pool for
each directory, containing VMs.

So if you have 3 vms: /var/parallels/vm-1.pvm,
/var/parallels/vm-2.pvm and /root/test.pvm - 2 storage pools
appear: -var-parallels and -root. xml descriptions of the pools
will be saved in /etc/libvirt/parallels-storage, so UUIDs will
not change netween connections to libvirt.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Allow changing some parameters of the hard disks: bus,
image and drive address.

Creating new disk devices and removing existing ones
require changes in the storage driver, so it will be
implemented later.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

Parse information about hard disks and fill disks array
in virDomainDef structure.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

For S390, the default console target type cannot be of type 'serial'.
It is necessary to at least interpret the 'arch' attribute
value of the os/type element to produce the correct default type.

Therefore we need to extend the signature of defaultConsoleTargetType
to account for architecture. As a consequence all the drivers
supporting this capability function must be updated.

Despite the amount of changed files, the only change in behavior is
that for S390 the default console target type will be 'virtio'.

N.B.: A more future-proof approach could be to to use hypervisor
specific capabilities to determine the best possible console type.
For instance one could add an opaque private data pointer to the
virCaps structure (in case of QEMU to hold capsCache) which could
then be passed to the defaultConsoleTargetType callback to determine
the console target type.
Seems to be however a bit overengineered for the use case...
Signed-off-by: NViktor Mihajlovski <mihajlov@linux.vnet.ibm.com>

The libvirt coding standard is to use 'function(...args...)'
instead of 'function (...args...)'. A non-trivial number of
places did not follow this rule and are fixed in this patch.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Found this when building on RHEL5:

parallels/parallels_storage.c: In function 'parallelsStorageOpen':
parallels/parallels_storage.c:180: error: 'for' loop initial declaration used outside C99 mode

(and similar error in parallels_driver.c). This was in spite of
configuring with "-Wno-error".

Many parts of virDomainDefPtr were using 'int' variables as
array length counts. Replace all these with size_t and update
various format strings & API signatures to adapt
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

size of videos array must be increased.
Signed-off-by: NDmitry Guryanov <dguryanov@parallels.com>

https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/