Also fixed serial port configuration which was broken due to recent
change in virDomainChrDef where targetType was newly added.

* src/Makefile.am: add new files
* src/vbox/vbox_driver.c: add case for version 3.1
* src/vbox/vbox_tmpl.c: refactor common patterns into macros, support for
  version 3.1, serial port configuration fix
* src/vbox/vbox_CAPI_v3_1.h, src/vbox/vbox_V3_1.c: generated code

There is currently no way to determine the libvirt version of a remote
libvirtd we are connected to. This is a useful piece of data to enable
feature detection.

This implements the virConnectIsSecure, virConnectIsEncrypted,
virDomainIsPersistent, virDomainIsActive, virNetworkIsActive,
virNetworkIsPersistent, virStoragePoolIsActive,
virStoragePoolIsPersistent, virInterfaceIsActive APIs in
(nearly) all drivers. Exceptions are:

 phyp: missing domainIsActive/Persistent
 esx: missing domainIsPersistent
 opennebula: missing domainIsActive/Persistent

* src/remote/remote_protocol.x: Define remote wire ABI for newly
  added APIs.
* daemon/remote_dispatch*.h: Re-generated from remote_protocol.x
* src/esx/esx_driver.c, src/lxc/lxc_driver.c, src/network/bridge_driver.c,
  src/opennebula/one_driver.c, src/openvz/openvz_conf.c,
  src/openvz/openvz_driver.c, src/phyp/phyp_driver.c,
  src/remote/remote_driver.c, src/storage/storage_driver.c,
  src/test/test_driver.c, src/uml/uml_driver.c, src/vbox/vbox_tmpl.c,
  src/xen/xen_driver.c, src/xen/xen_driver.h, src/xen/xen_inotify.c,
  src/xen/xen_inotify.h: Implement all the new APIs where possible

Introduce a number of new APIs to  expose some boolean properties
of objects, which cannot otherwise reliably determined, nor are
aspects of the XML configuration.

 * virDomainIsActive: Checking virDomainGetID is not reliable
   since it is not possible to distinguish between error condition
   and inactive domain for ID of -1.
 * virDomainIsPersistent: Check whether a persistent config exists
   for the domain

 * virNetworkIsActive: Check whether the network is active
 * virNetworkIsPersistent: Check whether a persistent config exists
   for the network

 * virStoragePoolIsActive: Check whether the storage pool is active
 * virStoragePoolIsPersistent: Check whether a persistent config exists
   for the storage pool

 * virInterfaceIsActive: Check whether the host interface is active

 * virConnectIsSecure: whether the communication channel to the
   hypervisor is secure
 * virConnectIsEncrypted: whether any network based commnunication
   channels are encrypted

NB, a channel can be secure, even if not encrypted, eg if it does
not involve the network, like a UNIX socket, or pipe.

 * include/libvirt/libvirt.h.in: Define public API
 * src/driver.h: Define internal driver API
 * src/libvirt.c: Implement public API entry point
 * src/libvirt_public.syms: Export API symbols
 * src/esx/esx_driver.c, src/lxc/lxc_driver.c,
   src/interface/netcf_driver.c, src/network/bridge_driver.c,
   src/opennebula/one_driver.c, src/openvz/openvz_driver.c,
   src/phyp/phyp_driver.c, src/qemu/qemu_driver.c,
   src/remote/remote_driver.c, src/test/test_driver.c,
   src/uml/uml_driver.c, src/vbox/vbox_tmpl.c,
   src/xen/xen_driver.c: Stub out driver tables

A character device's target (it's interface in the guest) had only a
single property: port. This patch is in preparation for adding targets
which require other properties.
Since this changes the conf type for character devices this affects
a number of drivers:

* src/conf/domain_conf.[ch] src/esx/esx_vmx.c src/qemu/qemu_conf.c
  src/qemu/qemu_driver.c src/uml/uml_conf.c src/uml/uml_driver.c
  src/vbox/vbox_tmpl.c src/xen/xend_internal.c src/xen/xm_internal.c:
  target properties are moved into a union in virDomainChrDef, and a
  targetType field is added to identify which union member should be
  used. All current code which touches a virDomainChrDef is updated both
  to use the new union field, and to populate targetType if necessary.

All drivers have copy + pasted inadequate error reporting which wraps
util.c:virGetHostname. Move all error reporting to this function, and improve
what we report.

Changes from v1:
  Drop the driver wrappers around virGetHostname. This means we still need
  to keep the new conn argument to virGetHostname, but I think it's worth
  it.

Nearly all of the methods in src/util/util.h have error codes that
must be checked by the caller to correct detect & report failure.
Add ATTRIBUTE_RETURN_CHECK to ensure compile time validation of
this

* daemon/libvirtd.c: Add explicit check on return value of virAsprintf
* src/conf/domain_conf.c: Add missing check on virParseMacAddr return
  value status & report error
* src/network/bridge_driver.c: Add missing OOM check on virAsprintf
  and report error
* src/qemu/qemu_conf.c: Add missing check on virParseMacAddr return
  value status & report error
* src/security/security_selinux.c: Remove call to virRandomInitialize
  that's done in libvirt.c already
* src/storage/storage_backend_logical.c: Add check & log on virRun
  return status
* src/util/util.c: Add missing checks on virAsprintf/Run status
* src/util/util.h: Annotate all methods with ATTRIBUTE_RETURN_CHECK
  if they return an error status code
* src/vbox/vbox_tmpl.c: Add missing check on virParseMacAddr
* src/xen/xm_internal.c: Add missing checks on virAsprintf
* tests/qemuargv2xmltest.c: Remove bogus call to virRandomInitialize()

The current virDomainObjListPtr object stores domain objects in
an array. This means that to find a particular objects requires
O(n) time, and more critically acquiring O(n) mutex locks.

The new impl replaces the array with a virHashTable, keyed off
UUID. Finding a object based on UUID is now O(1) time, and only
requires a single mutex lock. Finding by name/id is unchanged
in complexity.

In changing this, all code which iterates over the array had
to be updated to use a hash table iterator function callback.
Several of the functions which were identically duplicating
across all drivers were pulled into domain_conf.c

* src/conf/domain_conf.h, src/conf/domain_conf.c: Change
  virDomainObjListPtr to use virHashTable. Add a initializer
  method virDomainObjListInit, and rename virDomainObjListFree
  to virDomainObjListDeinit, since its not actually freeing
  the container, only its contents. Also add some convenient
  methods virDomainObjListGetInactiveNames,
  virDomainObjListGetActiveIDs and virDomainObjListNumOfDomains
  which can be used to implement the correspondingly named
  public API entry points in drivers
* src/libvirt_private.syms: Export new methods from domain_conf.h
* src/lxc/lxc_driver.c, src/opennebula/one_driver.c,
  src/openvz/openvz_conf.c, src/openvz/openvz_driver.c,
  src/qemu/qemu_driver.c, src/test/test_driver.c,
  src/uml/uml_driver.c, src/vbox/vbox_tmpl.c: Update all code
  to deal with hash tables instead of arrays for domains

Implementation of tunnelled migration, using a Unix Domain Socket
on the qemu backend.  Note that this requires very new versions of
qemu (0.10.7 at least) in order to get the appropriate bugfixes.
Signed-off-by: NChris Lalancette <clalance@redhat.com>

Signed-off-by: NChris Lalancette <clalance@redhat.com>

Rename virStorageVolFormatFileSystem to virStorageFileFormat and
move to src/util/storage_file.[ch]

* src/Makefile.am: add src/util/storage_file.[ch]

* src/conf/storage_conf.[ch]: move enum from here ...

* src/util/storage_file.[ch]: .. to here

* src/libvirt_private.syms: update To/FromString exports

* src/storage/storage_backend.c, src/storage/storage_backend_fs.c,
  src/vbox/vbox_tmpl.c: update for above changes

* src/vbox/vbox_tmpl.c: the vboxDomainDestroy forgot to wait for
  completion of the PowerDown command

* src/vbox/vbox_tmpl.c: UTF-16 fixed version of Florian Vichot initial
  patch

Signed-off-by: NChris Lalancette <clalance@redhat.com>

* src/vbox/vbox_tmpl.c: fix a bug where one can't start domains defined
  with older builds or with empty "FRONTEND/Type" tag in their xml
  files.

* src/vbox/vbox_tmpl.c: minor bug in selecting the graphics type. if the
  graphics type was desktop it was assumed that display is set for it,
  and thus crashed on strdup. Also adds a number of missing OOM checks.

* src/vbox/vbox_driver.c src/vbox/vbox_tmpl.c: adds the driver for
  storage volumes

* src/vbox/vbox_tmpl.c: a bit of cleanup

* src/vbox/vbox_tmpl.c: merged vboxNetworkUndefine() and
  vboxNetworkDestroy() and added code to handle multiple hostonly
  interfaces.

* src/vbox/vbox_tmpl.c: merged vboxNetworkCreateXML() and
  vboxNetworkDefineXML() and added code to handle multiple hostonly
  interfaces.

* src/vbox/vbox_tmpl.c: add setting of video and acceleration in
  VBox driver, and the ability to save this back for serialization

* src/vbox/vbox_tmpl.c: adds support for getting/setting number of cpus

* src/vbox/vbox_driver.c: remove some old 2.5 switches and plug the
  3.0 driver
* src/vbox/vbox_V3_0.c src/vbox/vbox_CAPI_v3_0.h: the driver for
  VirtualBox 3.0
* src/vbox/vbox_tmpl.c: handle the new driver and add event support
* src/Makefile.am: plug in the new module

When we hot-plug a disk device into a qemu guest, we need to retain its
PCI address so that it can be removed again later. Currently, we do
retain the slot number, but not across libvirtd restarts.

Add <state devaddr="xxxx:xx:xx"/> to the disk device XML config when the
VIR_DOMAIN_XML_INTERNAL_STATUS flag is used. We still don't parse the
domain and bus number, but the format allows us to do that in future.

* src/domain_conf.h: replace slotnum with pci_addr struct, add helper
  for testing whether the address is valid

* src/domain_conf.c: handle formatting and parsing the address

* src/qemu_driver.c: store the parsed slot number as a full PCI address,
  and use this address with the pci_del monitor command

* src/vbox/vbox_tmpl.c: we're debug printing slotnum here even though
  it can never be set, just delete it

* src/vbox/vbox_tmpl.c: reconnecting to vbox:///session was failing

* src/vbox/vbox_driver.c src/vbox/vbox_tmpl.c: last patch for
  hostonly networks support in vbox driver, patch by Pritesh Kothari
daniel

  patches by Pritesh Kothari
daniel

* src/vbox/vbox_tmpl.c: "Host only" and "Internal" network support
  for vbox, patch by Pritesh Kothari
daniel

found so other hypervisors can be probed. Patch by Pritesh Kothari.

* src/vbox/vbox_driver.c src/vbox/vbox_tmpl.c: changes in
  VirtualBox driver version detection and move informations
  from a global variable into a driver structure, patch by Pritesh
  Kothari.
Daniel

* configure.in include/libvirt/virterror.h src/Makefile.am
  src/domain_conf.[ch] src/driver.h src/virterror.c src/vbox/README
  src/vbox/vbox_CAPI_v2_2.h src/vbox/vbox_V2_2.c
  src/vbox/vbox_XPCOMCGlue.[ch] src/vbox/vbox_driver.[ch]
  src/vbox/vbox_tmpl.c: integration of the VirtualBox support
  patches by Pritesh Kothari
Daniel