The remoteDispatchClientRequest() method is currently hardwired to
assume there is only one type of incoming message, a method call.
To allow for alternate types of incoming messags, the code that is
specific to method calls is being split into a separate method
remoteDispatchClientCall

* qemud/dispatch.c: Move method call specific code out into
  remoteDispatchClientCall. Add a helper remoteSerializeError
  for returning error messages to client

The current qemudRegisterClientEvent() code is used both for
registering the initial socket watch, and updating the already
registered watch. This causes unneccessary complexity in alot
of code which only cares about updating existing watches. The
updating of a watch cannot ever fail, nor is a reference to the
'qemud_server' object required.

This introduces a new qemudUpdateClientEvent() method for that
case, allowing the elimination of unneccessary error checking
and removal of the server back-reference in struct qemud_client.

* qemud/qemud.h: Remove 'server' field from struct qemud_client.
  Add qemudUpdateClientEvent() method. Remove 'update' param
  from qemudRegisterClientEvent method
* qemud/dispatch.c, qemud/qemud.c, qemud/remote.c: Update alot
  of code to use qemudUpdateClientEvent() instead of
  qemudRegisterClientEvent(). Move more logic from remoteRelayDomainEvent
  into remoteDispatchDomainEventSend.

This removes an assumption from qemudWorker() code that every
incoming message will generate a reply.

* qemud/dispatch.c: remoteDispatchClientRequest now has responsibility
  for queuing the reply message to the RPC call
* qemud/qemud.c: Do not queue the RPC call reply in qemudWorker(),
  allowing remoteDispatchClientRequest() to take care of it

The naming convention for structs used in the RPC layer is for
incoming requests to be called XXXX_args, and the associated
outgoing reply to be called XXXX_ret.  Asynchronously emitted
messages (eg events) are re-using the XXXX_ret naming scheme.
This patch changes that such that async messages are XXXX_msg,
and stops adding entries for them in the dispatch table, avoiding
the need for a dummy no-op implementation.

* qemud/remote.c: Remove dummy remoteDispatchDomainEvent, no
  longer required. Update to replace remote_domain_event_ret
  with xdr_remote_domain_event_msg
* qemud/remote_protocol.x: Rename remote_domain_event_ret to
  remote_domain_event_msg
* qemud/remote_generate_stubs.pl: Adding handling for new
  XXX_msg structs.
* src/remote_internal.c: Rename remote_domain_event_ret to
  remote_domain_event_msg
* qemud/remote_dispatch_prototypes.h, qemud/remote_dispatch_ret.h,
  qemud/remote_dispatch_table.h, qemud/remote_protocol.h,
  qemud/remote_protocol.c: auto-regenerate

Introduces an API for encoding the header field for outgoing messages
allowing some duplicated code to be eliminated

* qemud/dispatch.c, qemud/dispatch.h: add remoteEncodeClientMessageHeader
  for encoding message header. Update remoteDispatchClientRequest to
  use this method.
* qemud/remote.c: Update remoteDispatchDomainEventSend to use the
  generic remoteEncodeClientMessageHeader() for encoding event
  message hedaders. Push some logic from remoteRelayDomainEvent
  down into remoteDispatchDomainEventSend.

Separate the decoding of incoming request header out from the
dispatch code. This will allow later code to making dispatcher
routing decisions based on the header field data.

* qemud/dispatch.c, qemud/dispatch.h: Add remoteDecodeClientMessageHeader
  API for decoding the header of a client message. Update the
  remoteDispatchClientRequest method to assume a pre-decoded
  header.
* qemud/qemud.h: Include a 'remote_message_header' field in
  'struct qemud_client_message' for pre-decoded header data
* qemud/qemud.c: Decode the incoming client message header before
  invoking remoteDispatchClientRequest

* po/POTFILES.in: Add qemud/dispatch.c
* qemud/dispatch.c, qemud/dispatch.h: Generic code handling dispatch of
  RPC messages.
* qemud/Makefile.am: Add dispatch.c to build
* qemud/qemud.c: Include dispatch.h
* qemud/qemud.h: Remove remoteDispatchClientRequest, remoteRelayDomainEvent
  now in dispatch.h
* qemud/remote.c: Remove remoteDispatchClientRequest, remoteRelayDomainEvent
  now in dispatch.c, and dispatch_args, dispatch_ret, dispatch_fn & dispatch_data
  now in remote.h
* qemud/remote.h: Add typedefs for dispatch_args, dispatch_ret,
  dispatch_fn, dispath_data. Add remoteGetDispatchData() API

by running this command:
git ls-files -z | xargs -0 perl -pi -0777 -e 's/\n\n+$/\n/'
This is in preparation for a more strict make syntax-check
rule that will detect trailing blank lines.

* qemud/remote.c: Send back the actual libvirt connection error
  rather than formatting a generic error for security driver
  methods
* src/libvirt.c: Fix virDomainGetSecurityLabel, and
  virNodeGetSecurityModel to correctly set the error on
  the virConnectPtr object, and raise a full error rather
  than warning when not supported

* docs/logging.html[.in] qemud/libvirtd.conf qemud/qemud.c
  src/logging.[ch]: cleanup the logging code and docs to remove
  all references to log level 0, cleanup hardcoded values and add
  a default VIR_LOG_DEFAULT value, patch by Amy Griffis
daniel

* qemud/qemud.c src/conf.c src/conf.h src/qemu_conf.c src/xen_unified.c
  src/xm_internal.c tests/conftest.c tests/xmconfigtest.c: extend
  the configuration parser for VMX syntax, patch by Matthias Bolte
Daniel

* qemud/remote.c: fixing a typo pointed out by Runa Bhattacharjee
Daniel

* src/opennebula/one_conf.[ch] src/opennebula/one_driver.[ch]:
  the OpenNebula driver
* configure.in include/libvirt/virterror.h qemud/Makefile.am
  qemud/qemud.c src/Makefile.am src/domain_conf.[ch] src/driver.h
  src/libvirt.c src/virterror.c: integration of the OpenNebula
  driver in the libvirt infrastructure
* AUTHORS: add Abel Miguez Rodriguez
daniel

* configure.in include/libvirt/libvirt.h[.in]
  include/libvirt/virterror.h qemud/remote.c
  qemud/remote_dispatch_args.h qemud/remote_dispatch_prototypes.h
  qemud/remote_dispatch_ret.h qemud/remote_dispatch_table.h
  qemud/remote_protocol.[chx] src/Makefile.am src/datatypes.c
  src/datatypes.h src/driver.h src/libvirt.c src/remote_internal.c
  src/virterror.c src/libvirt_private.syms src/libvirt_public.syms:
  Add the Interface config APIs and remote stubs for those, patch
  by Laine Stump
* AUTHORS: add Laine
daniel

* qemud/qemud.c src/console.c src/network_driver.c
  src/node_device_conf.c src/node_device_hal.c src/storage_conf.c
  src/util.c: cleanup of some direct stderr logging
daniel

Generating at install time breaks 'make && sudo make install' if root
can't access the users home directory (NFS w/o no_root_squash for example).

* qemud/libvirtd.init.in: improve the LSB init header for the
  init.d file, patch by Frederik Himpe
Daniel

* qemud/qemud.c src/cgroup.c src/uml_driver.c src/util.c: close
  some potential FILE * leaks
Daniel

  Chris Lalancette
Daniel

* qemud/remote.c qemud/remote_dispatch_args.h
  qemud/remote_dispatch_prototypes.h qemud/remote_dispatch_table.h
  qemud/remote_protocol.c qemud/remote_protocol.h
  qemud/remote_protocol.x src/remote_internal.c: Implement
  attach/reattach/reset in the remote driver, patch by Mark
  McLoughlin.
Daniel

  to avoid random crashes in the daemon, patch by Daniel Berrange
Daniel

* qemud/Makefile.am (libvirtd_LDADD): Unindent "if HAVE_*" directives.
Reported by Daniel Schwager.