Commit Graph

364 Commits

Author SHA1 Message Date
Matthias Bolte
5e3b0f8b57 hyperv: Add basic driver for Microsoft Hyper-V
Domain listing, basic information retrieval and domain life cycle
management is implemented. But currently the domain XML output
lacks the complete devices section.

The driver uses OpenWSMAN to directly communicate with a Hyper-V
server over its WS-Management interface exposed via Microsoft WinRM.

The driver is based on the work of Michael Sievers. This started in
the same master program project group at the University of Paderborn
as the ESX driver.

See Michael's blog for details: http://hyperv4libvirt.wordpress.com/
2011-08-26 17:52:55 +02:00
Matthias Bolte
e224b6f8fb hyperv: Add OpenWSMAN based client for the Hyper-V WMI API
Add a generator script to generate the structs and serialization
information for OpenWSMAN.

openwsman.h collects workarounds for problems in OpenWSMAN <= 2.2.6.
There are also disabled sections that would use ws_serializer_free_mem
but can't because it's broken in OpenWSMAN <= 2.2.6. Patches to fix
this have been posted upstream.
2011-08-26 17:52:55 +02:00
Matthias Bolte
4d6e6f4aa9 hyperv: Add driver skeleton 2011-08-26 17:52:55 +02:00
Matthias Bolte
6aa57af3e4 esx: Use $(PYTHON) instead of the shebang to run the generator 2011-08-24 10:45:03 +02:00
Roopa Prabhu
03172265d3 pci: Move some pci sriov helper code out of node device driver to util/pci
This patch moves some of the sriov related pci code from node_device driver
to src/util/pci.[ch]. Some functions had to go thru name and argument list
change to accommodate the move.

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
2011-08-16 11:59:00 -04:00
Daniel P. Berrange
f80a4ed77a Move pidfile functions into util/virpidfile.{c,h}
The functions for manipulating pidfiles are in util/util.{c,h}.
We will shortly be adding some further pidfile related functions.
To avoid further growing util.c, this moves the pidfile related
functions into a dedicated virpidfile.{c,h}. The functions are
also all renamed to have 'virPidFile' as their name prefix

* util/util.h, util/util.c: Remove all pidfile code
* util/virpidfile.c, util/virpidfile.h: Add new APIs for pidfile
  handling.
* lxc/lxc_controller.c, lxc/lxc_driver.c, network/bridge_driver.c,
  qemu/qemu_process.c: Add virpidfile.h include and adapt for API
  renames
2011-08-12 20:37:00 +01:00
Eric Blake
c5b6537b1f build: fix include path for cygwin
Without this, cygwin failed to compile:

In file included from ../src/rpc/virnetmessage.h:24,
                 from ../src/rpc/virnetclient.h:27,
                 from remote/remote_driver.c:31:
../src/rpc/virnetprotocol.h:9:21: error: rpc/rpc.h: No such file or directory

With that fixed, compilation warned:

rpc/virnetsocket.c: In function 'virNetSocketNewListenUNIX':
rpc/virnetsocket.c:347: warning: format '%d' expects type 'int', but argument 8 has type 'gid_t' [-Wformat]
rpc/virnetsocket.c: In function 'virNetSocketGetLocalIdentity':
rpc/virnetsocket.c:743: warning: pointer targets in passing argument 5 of 'getsockopt' differ in signedness

* src/Makefile.am (libvirt_driver_remote_la_CFLAGS)
(libvirt_net_rpc_client_la_CFLAGS)
(libvirt_net_rpc_server_la_CFLAGS): Include XDR_CFLAGS, for rpc
headers on cygwin.
* src/rpc/virnetsocket.c (virNetSocketNewListenUNIX)
(virNetSocketGetLocalIdentity): Avoid compiler warnings.
2011-07-29 13:31:53 -06:00
Matthias Bolte
b590866bdb freebsd: Fix build problem due to picking up the wrong libvirt.h
Gettext annoyingly modifies CPPFLAGS in-place, putting
-I/usr/local/include into the search patch if libintl headers
must be used from that location.  But since we must support
automake 1.9.6 which lacks AM_CPPFLAGS, and since CPPFLAGS is used
prior to INCLUDES, this means that the build picks up the _old_
installed libvirt.h in priority to the in-tree version, leading
to all sorts of weird build failures on FreeBSD.

Fix this by teaching configure to undo gettext's actions, but
to keep any changes required by gettext at the end of INCLUDES
after all in-tree locations are used first.  Also requires
adding a wrapper Makefile.am and making gnulib-tool create
just gnulib.mk files during the bootstrap process.

Signed-off-by: Eric Blake <eblake@redhat.com>
2011-07-29 07:35:54 -06:00
Eric Blake
ff81956ac6 maint: add missing copyright notices
I went with the shorter license notice used by src/libvirt.c,
rather than spelling out the full LGPLv2+ clause into each of
these files.

* configure.ac: Declare copyright.
* all Makefile.am: Likewise.
2011-07-28 15:01:17 -06:00
Daniel P. Berrange
c198d91667 Pre-create /var/lib/libvirt/sanlock directory
The sanlock plugin for libvirt expects the directory
/var/lib/libvirt/sanlock to exist. Create this and add
it to the RPM

* libvirt.spec.in: Add /var/lib/libvirt/sanlock
* src/Makefile.am: Create /var/lib/libvirt/sanlock
2011-07-22 15:52:44 +01:00
Matthias Bolte
1a80a4e0d4 build: Use $(PYTHON) instead of python for the keycode map generator
Also prepend $(AM_V_GEN) to the command line, mark virkeycode-mapgen.py
as executable and switch the shebang line from /bin/python to the
commonly use /usr/bin/python.
2011-07-22 16:16:33 +02:00
Eric Blake
8e22e08935 build: rename files.h to virfile.h
In preparation for a future patch adding new virFile APIs.

* src/util/files.h, src/util/files.c: Move...
* src/util/virfile.h, src/util/virfile.c: ...here, and rename
functions to virFile prefix.  Macro names are intentionally
left alone.
* *.c: All '#include "files.h"' uses changed.
* src/Makefile.am (UTIL_SOURCES): Reflect rename.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_close): Likewise.
* src/libvirt_private.syms: Likewise.
* docs/hacking.html.in: Likewise.
* HACKING: Regenerate.
2011-07-21 10:34:51 -06:00
Matthias Bolte
fbd5465a5b rpc: Make the dispatch generator handle 'void name(void)' style procedures
The only 'void name(void)' style procedure in the protocol is 'close' that
is handled special, but also programming errors like a missing _args or
_ret suffix on the structs in the .x files can create such a situation by
accident. Making the generator aware of this avoids bogus errors from the
generator such as:

  Use of uninitialized value in exists at ./rpc/gendispatch.pl line 967.

Also this allows to get rid of the -c option and the special case code for
the 'close' procedure, as the generator handles it now correctly.

Reported by Michal Privoznik
2011-07-21 17:00:59 +02:00
Lai Jiangshan
0bbf87e91e util: add virtkeycode module
Add virtkey lib for usage-improvment and keycode translating.
Add 4 internal API for the aim

const char *virKeycodeSetTypeToString(int codeset);
int virKeycodeSetTypeFromString(const char *name);
int virKeycodeValueFromString(virKeycodeSet codeset, const char *keyname);
int virKeycodeValueTranslate(virKeycodeSet from_codeset,
                             virKeycodeSet to_offset,
                             int key_value);

* include/libvirt/libvirt.h.in: extend virKeycodeSet enum
* src/Makefile.am: add new virtkeycode module and rule to generate
  virkeymaps.h
* src/util/virkeycode.c src/util/virkeycode.h: new module
* src/util/virkeycode-mapgen.py: python generator for virkeymaps.h
  out of keymaps.csv
* src/libvirt_private.syms: extend private symbols for new module
* .gitignore: add generated virkeymaps.h
2011-07-21 15:57:47 +08:00
Lai Jiangshan
1151f0eee8 util: Add keymaps.csv
Should keep it as the same as:
http://git.gnome.org/browse/gtk-vnc/commit/src/keymaps.csv

All master  keymaps are defined in a CSV file. THis covers
Linux keycodes, OSX keycodes, AT set1, 2 & 3, XT keycodes,
the XT encoding used by the Linux KBD driver, USB keycodes,
Win32 keycodes, the XT encoding used by Xorg on Cygwin,
the XT encoding used by Xorg on Linux with kbd driver.

* src/Makefile.am: added to EXTRA_DIST
* src/util/keymaps.csv: new file
2011-07-21 15:02:52 +08:00
Daniel P. Berrange
8665f85523 Quieten build & ensure API build scripts exit with non-zero status
The current API build scripts will continue and exit with a zero
status even if they find problems. This has been the cause of many
build problems, or hidden build errors, in the past. Change the
scripts so they always exit with a non-zero status for any problems
they do not understand. Also turn off all debug output by default
so they respect $(AM_V_GEN)

* docs/Makefile.am: Use $(AM_V_GEN) for API/HTML scripts
* docs/apibuild.py, python/generator.py: Exit with non-zero status
  if problems are found. Also be silent, not outputting any debug
  messages.
* src/Makefile.am: Use $(AM_V_GEN) for ESX generator
* python/Makefile.am: Tweak rule
2011-07-19 13:58:06 +01:00
Jiri Denemark
40798fb0d2 build: Fix protocol-structs check in VPATH build
$@ already included $(srcdir)
2011-07-18 18:58:54 +02:00
Eric Blake
703d4ed594 build: also track RPC on-wire enum values
As long as we guarantee RPC struct layout stability, we might as
well also guarantee RPC enum value constancy.

* src/Makefile.am (r1, r2, PDWTAGS): Adjust rule to pick up named
and anonymous enums.
* src/remote_protocol-structs: Add enum values.
* src/qemu_protocol-structs: Likewise.
* src/virnetprotocol-structs: Likewise.
2011-07-15 17:48:09 -06:00
Eric Blake
3fbc761552 build: check for virnetprotocol on-the-wire stability
Similar to the recent qemu_protocol-structs addition.

* src/virnetprotocol-structs: New file.
* src/Makefile.am (%_protocol-structs): Factor body...
(PDWTAGS): ...into new helper macro.
(virnetprotocol-structs): New rule.
(PROTOCOL_STRUCTS): Add virnetprotocol-structs.
2011-07-14 09:25:41 -06:00
Daniel P. Berrange
b43070ebfc Move qemu_audit.h helpers into shared code
The LXC and UML drivers can both make use of auditing. Move
the qemu_audit.{c,h} files to src/conf/domain_audit.{c,h}

* src/conf/domain_audit.c: Rename from src/qemu/qemu_audit.c
* src/conf/domain_audit.h: Rename from src/qemu/qemu_audit.h
* src/Makefile.am: Remove qemu_audit.{c,h}, add domain_audit.{c,h}
* src/qemu/qemu_audit.h, src/qemu/qemu_cgroup.c,
  src/qemu/qemu_command.c, src/qemu/qemu_driver.c,
  src/qemu/qemu_hotplug.c, src/qemu/qemu_migration.c,
  src/qemu/qemu_process.c: Update for changed audit API names
2011-07-12 17:05:25 +01:00
Jim Fehlig
b8adfcc60c Fix build when using polkit0
V2: Remove policy kit references from virNetServer and use DBus APIs
    directly, if available.
2011-07-12 08:44:55 -06:00
Eric Blake
2ceb35e1cd maint: rename virtaudit to match file contents
* src/util/virtaudit.[ch]: Rename...
* src/util/viraudit.[ch]: ...to match virAudit* API.
* src/Makefile.am (UTIL_SOURCES): Reflect rename.
* daemon/libvirtd.c: Likewise.
* po/POTFILES.in: Likewise.
* src/libvirt_private.syms: Likewise.
* src/qemu/qemu_audit.c: Likewise.
2011-07-12 07:24:43 -06:00
Eric Blake
62dee6fa48 build: also check qemu_protocol for on-the-wire stability
Since we are going to add some libvirt-qemu.so entry points in
0.9.4, we might as well start checking for RPC stability, just
as for libvirt.so.

* src/Makefile.am (PROTOCOL_STRUCTS): New variable.
(remote_protocol-structs): Rename...
(%_protocol-structs): ...and make more generic.
* src/qemu_protocol-structs: New file.
2011-07-11 17:48:32 -06:00
Eric Blake
6ae3052c06 build: consistently use CFLAGS
According to the automake manual, CPPFLAGS (aka INCLUDES, as spelled
in automake 1.9.6) should only include -I, -D, and -U directives; more
generic directives like -Wall belong in CFLAGS since they affect more
phases of the build process.  Therefore, we should be sticking CFLAGS
additions into a CFLAGS container, not a CPPFLAGS container.

* src/Makefile.am (libvirt_driver_vmware_la_CFLAGS): Use AM_CFLAGS.
(INCLUDES): Move CFLAGS items...
(AM_CFLAGS): ...to their proper location.
* python/Makefile.am (INCLUDES, AM_CFLAGS): Likewise.
* tests/Makefile.am (INCLUDES, AM_CFLAGS): Likewise.
(commandtest_CFLAGS, commandhelper_CFLAGS)
(virnetmessagetest_CFLAGS, virnetsockettest_CFLAGS): Use AM_CFLAGS.
2011-07-01 10:44:17 -06:00
Eric Blake
bf8fba1e75 build: simplify sanlock distribution
EXTRA_DIST files should unconditionally be part of the tarball,
rather than depending on the presence of sanlock-devel.

Meanwhile, parallel builds could fail if we don't use mkdir -p.

* src/Makefile.am (EXTRA_DIST): Always ship sanlock .aug and
template .conf files.
(%-sanlock.conf): Use MKDIR_P.
2011-06-30 17:26:15 -06:00
Eric Blake
9fdeaeef89 maint: improve makefile whitespace
None of these instances cause any semantic differences, but
consistency is nice.

* src/Makefile.am: Replace leading spaces with tabs.
2011-06-28 22:06:48 -06:00
Daniel P. Berrange
58eb4f2cbb Support loading a configuration file for sanlock plugin
Introduce a configuration file with a single parameter
'require_lease_for_disks', which is used to decide whether
it is allowed to start a guest which has read/write disks,
but without any leases.

* libvirt.spec.in: Add sanlock config file and augeas
  lens
* src/Makefile.am: Install sanlock config file and
  augeas lens
* src/locking/libvirt_sanlock.aug: Augeas master lens
* src/locking/test_libvirt_sanlock.aug: Augeas test file
* src/locking/sanlock.conf: Example sanlock config
* src/locking/lock_driver_sanlock.c: Wire up loading
  of configuration file
2011-06-28 18:07:06 +01:00
Daniel P. Berrange
c1b2264477 Convert the remote driver to new RPC client APIs
This guts the current remote driver, removing all its networking
handling code. Instead it calls out to the new virClientPtr and
virClientProgramPtr APIs for all RPC & networking work.

* src/Makefile.am: Link remote driver with generic RPC code
* src/remote/remote_driver.c: Gut code, replacing with RPC
  API calls
* src/rpc/gendispatch.pl: Update for changes in the way
  streams are handled
2011-06-28 17:33:12 +01:00
Daniel P. Berrange
51ae69be69 Add XDR_CFLAGS to libvirt-net-rpc.la library
* src/Makefile.am: Add XDR_CFLAGS
2011-06-28 17:33:06 +01:00
Eric Blake
481e4d795c build: fix VPATH builds
The build currently fails when trying to create virnetprotocol.c
into $(builddir)/rpc, which doesn't exist.  But since the file
is part of the tarball, it should be generated into $(srcdir).
Caught by autobuild.sh.

* src/Makefile.am (VIR_NET_RPC_GENERATED): Generate into srcdir.
2011-06-24 20:55:23 -06:00
Michal Novotny
89ae9849f7 Network: modify dnsmasq commandline build function to allow testing
The dnsmasq commandline was being built as a part of running
dnsmasq. This patch puts the commandline build into a separate
function (and exports it as a private API) making it possible to build
a dnsmasq commandline without executing it, so that we can write a
test program to verify that the proper commandlines are being created.

Signed-off-by: Michal Novotny <minovotn@redhat.com>
2011-06-24 16:15:17 -04:00
Daniel P. Berrange
789ab2cc9f Make sure virnetprotocol.[ch] are in BUILT_SOURCES
To ensure virnetprotocol.[ch] are generated before any other
files, add them to BUILT_SOURCES and MAINTAINERCLEANFILES.
At the same time, move ESX_DRIVER_GENERATED out of DISTCLEAN
and into MAINTAINERCLEANFILES, since they are included in
EXTRA_DIST

* src/Makefile.am: Add virnetprotocol.[ch] to BUILT_SOURCES
2011-06-24 15:19:41 +01:00
Daniel P. Berrange
d6bf7703d0 Fix some bugs in RPC protocol make rules
The Makefile.am rules for generating RPC protocol had a couple
of bugs

 - A instance of remote/rpcgen_fix.pl  was not changed
   to rpc/genprotocol.pl
 - A dep from rpc/virnetmessage.h on the generated
   rpc/virnetprotocol.h was missing
 - The generated rpc/virnetprotocol.[ch] were not listed
   in MAINTAINERCLEANFILES

* Makefile.am: Fix RPC protocol generation
2011-06-24 14:37:25 +01:00
Daniel P. Berrange
b17b4afafd Move the RPC generator scripts into src/rpc
Move the daemon/remote_generator.pl to src/rpc/gendispatch.pl
and move the src/remote/rpcgen_fix.pl to src/rpc/genprotocol.pl

* daemon/Makefile.am: Update for new name/location of generator
* src/Makefile.am: Update for new name/location of generator
2011-06-24 11:48:49 +01:00
Daniel P. Berrange
434de30da5 Introduce generic RPC client objects
To facilitate creation of new clients using XDR RPC services,
pull alot of the remote driver code into a set of reusable
objects.

 - virNetClient: Encapsulates a socket connection to a
   remote RPC server. Handles all the network I/O for
   reading/writing RPC messages. Delegates RPC encoding
   and decoding to the registered programs

 - virNetClientProgram: Handles processing and dispatch
   of RPC messages for a single RPC (program,version).
   A program can register to receive async events
   from a client

 - virNetClientStream: Handles generic I/O stream
   integration to RPC layer

Each new client program now merely needs to define the list of
RPC procedures & events it wants and their handlers. It does
not need to deal with any of the network I/O functionality at
all.
2011-06-24 11:48:45 +01:00
Daniel P. Berrange
e23ec81db6 Introduce generic RPC module for advertising via MDNS
Allow RPC servers to advertise themselves using MDNS,
via Avahi

* src/rpc/virnetserver.c, src/rpc/virnetserver.h: Allow
  registration of MDNS services via avahi
* src/rpc/virnetserverservice.c, src/rpc/virnetserverservice.h: Add
  API to fetch the listen port number
* src/rpc/virnetsocket.c, src/rpc/virnetsocket.h: Add API to
  fetch the local port number
* src/rpc/virnetservermdns.c, src/rpc/virnetservermdns.h: Represent
  an MDNS advertisement
2011-06-24 11:48:41 +01:00
Daniel P. Berrange
4e00b1da8a Introduce generic RPC server objects
To facilitate creation of new daemons providing XDR RPC services,
pull a lot of the libvirtd daemon code into a set of reusable
objects.

 * virNetServer: A server contains one or more services which
   accept incoming clients. It maintains the list of active
   clients. It has a list of RPC programs which can be used
   by clients. When clients produce a complete RPC message,
   the server passes this onto the corresponding program for
   handling, and queues any response back with the client.

 * virNetServerClient: Encapsulates a single client connection.
   All I/O for the client is handled, reading & writing RPC
   messages.

 * virNetServerProgram: Handles processing and dispatch of
   RPC method calls for a single RPC (program,version).
   Multiple programs can be registered with the server.

 * virNetServerService: Encapsulates socket(s) listening for
   new connections. Each service listens on a single host/port,
   but may have multiple sockets if on a dual IPv4/6 host.

Each new daemon now merely has to define the list of RPC procedures
& their handlers. It does not need to deal with any network related
functionality at all.
2011-06-24 11:48:37 +01:00
Daniel P. Berrange
bb1c9296f5 Generic module for handling SASL authentication & encryption
This provides two modules for handling SASL

 * virNetSASLContext provides the process-wide state, currently
   just a whitelist of usernames on the server and a one time
   library init call

 * virNetTLSSession provides the per-connection state, ie the
   SASL session itself. This also include APIs for providing
   data encryption/decryption once the session is established

* src/Makefile.am: Add to libvirt-net-rpc.la
* src/rpc/virnetsaslcontext.c, src/rpc/virnetsaslcontext.h: Generic
  SASL handling code
2011-06-24 11:48:25 +01:00
Daniel P. Berrange
30fd0bbbfc Generic module for handling TLS encryption and x509 certs
This provides two modules for handling TLS

 * virNetTLSContext provides the process-wide state, in particular
   all the x509 credentials, DH params and x509 whitelists
 * virNetTLSSession provides the per-connection state, ie the
   TLS session itself.

The virNetTLSContext provides APIs for validating a TLS session's
x509 credentials. The virNetTLSSession includes APIs for performing
the initial TLS handshake and sending/recving encrypted data

* src/Makefile.am: Add to libvirt-net-rpc.la
* src/rpc/virnettlscontext.c, src/rpc/virnettlscontext.h: Generic
  TLS handling code
2011-06-24 11:48:22 +01:00
Daniel P. Berrange
58b5b14e5e Introduce a generic object for using network sockets
Introduces a simple wrapper around the raw POSIX sockets APIs
and name resolution APIs. Allows for easy creation of client
and server sockets with correct usage of name resolution APIs
for protocol agnostic socket setup.

It can listen for UNIX and TCP stream sockets.

It can connect to UNIX, TCP streams directly, or indirectly
to UNIX sockets via an SSH tunnel or external command

* src/Makefile.am: Add to libvirt-net-rpc.la
* src/rpc/virnetsocket.c, src/rpc/virnetsocket.h: Generic
  sockets APIs
* tests/Makefile.am: Add socket test
* tests/virnetsockettest.c: New test case
* tests/testutils.c: Avoid overriding LIBVIRT_DEBUG settings
* tests/ssh.c: Dumb helper program for SSH tunnelling tests
2011-06-24 11:48:18 +01:00
Daniel P. Berrange
ceacc1dd4f Provide a simple object for encoding/decoding RPC messages
This provides a new struct that contains a buffer for the RPC
message header+payload, as well as a decoded copy of the message
header. There is an API for applying a XDR encoding & decoding
of the message headers and payloads. There are also APIs for
maintaining a simple FIFO queue of message instances.

Expected usage scenarios are:

To send a message

   msg = virNetMessageNew()

   ...fill in msg->header fields..
   virNetMessageEncodeHeader(msg)
   ...loook at msg->header fields to determine payload filter
   virNetMessageEncodePayload(msg, xdrfilter, data)
   ...send msg->bufferLength worth of data from buffer

To receive a message

   msg = virNetMessageNew()
   ...read VIR_NET_MESSAGE_LEN_MAX of data into buffer
   virNetMessageDecodeLength(msg)
   ...read msg->bufferLength-msg->bufferOffset of data into buffer
   virNetMessageDecodeHeader(msg)
   ...look at msg->header fields to determine payload filter
   virNetMessageDecodePayload(msg, xdrfilter, data)
   ...run payload processor

* src/Makefile.am: Add to libvirt-net-rpc.la
* src/rpc/virnetmessage.c, src/rpc/virnetmessage.h: Internal
  message handling API.
* testutils.c, testutils.h: Helper for printing binary differences
* virnetmessagetest.c: Validate all XDR encoding/decoding
2011-06-24 11:48:14 +01:00
Daniel P. Berrange
980a132a24 Defines the basics of a generic RPC protocol in XDR
This patch defines the basics of a generic RPC protocol in XDR.
This is wire ABI compatible with the original remote_protocol.x.
It takes everything except for the RPC calls / events from that
protocol

 - The basic header virNetMessageHeader (aka remote_message_header)
 - The error object virNetMessageError  (aka remote_error)
 - Two dummy objects virNetMessageDomain & virNetMessageNetwork
   sadly needed to keep virNetMessageError ABI compatible with
   the old remote_error

The RPC protocol supports method calls, async events and
bidirectional data streams as before

* src/Makefile.am: Add rules for generating RPC code from
  protocol & define a new libvirt-net-rpc.la helper library
* src/rpc/virnetprotocol.x: New generic RPC protocol
2011-06-24 11:48:10 +01:00
Stefan Berger
6a5978833a cleanup: make nlComm commonly available
In a first cleanup step, make nlComm from macvtap.c commonly available
for other code to use. Since nlComm uses Linux-specific structures as
parameters it's prototype is only visible on Linux.
2011-06-22 14:17:36 -04:00
Matthias Bolte
bfbeafbd5d Fix dlopen dependency
Since the addition of the lock manager framework in 6a943419c5
dlopen is always required, but the checks in configure wasn't changed
to reflect that. This didn't show up directly because the VirtualBox
driver linking dlopen in covered it. But disabling the VirtualBox
driver makes the build fail due to missing dlopen.

Change the dlopen check in configure to pick up dlopen when available.

Reported by Ruben Kerkhof.
2011-06-13 14:19:56 -06:00
Daniel P. Berrange
9f135031ff Add a plugin for the 'sanlock' project
Sanlock is a project that implements a disk-paxos locking
algorithm. This is suitable for cluster deployments with
shared storage.

* src/Makefile.am: Add dlopen plugin for sanlock
* src/locking/lock_driver_sanlock.c: Sanlock driver
* configure.ac: Check for sanlock
* libvirt.spec.in: Add a libvirt-lock-sanlock RPM
2011-06-02 10:54:01 +01:00
Daniel P. Berrange
ad73a937ff Add higher level lock API for domain objects
To facilitate use of the locking plugins from hypervisor drivers,
introduce a higher level API for locking virDomainObjPtr instances.
In includes APIs targetted to VM startup, and hotplug/unplug

* src/Makefile.am: Add domain lock API
* src/locking/domain_lock.c, src/locking/domain_lock.h: High
  level API for domain locking
2011-06-02 10:54:01 +01:00
Daniel P. Berrange
db98851c24 Add a 'nop' lock driver implementation.
To allow hypervisor drivers to assume that a lock driver impl
will be guaranteed to exist, provide a 'nop' impl that is
compiled into the library

* src/Makefile.am: Add nop driver
* src/locking/lock_driver_nop.c, src/locking/lock_driver_nop.h:
  Nop lock driver implementation
* src/locking/lock_manager.c: Enable direct access of 'nop'
  driver, instead of dlopen()ing it.
2011-06-02 10:54:00 +01:00
Daniel P. Berrange
6a943419c5 Basic framework for lock manager plugins
Define the basic framework lock manager plugins. The
basic plugin API for 3rd parties to implemented is
defined in

  src/locking/lock_driver.h

This allows dlopen()able modules for alternative locking
schemes, however, we do not install the header. This
requires lock plugins to be in-tree allowing changing of
the lock manager plugin API in future.

The libvirt code for loading & calling into plugins
is in

  src/locking/lock_manager.{c,h}

* include/libvirt/virterror.h, src/util/virterror.c: Add
  VIR_FROM_LOCKING
* src/locking/lock_driver.h: API for lock driver plugins
  to implement
* src/locking/lock_manager.c, src/locking/lock_manager.h:
  Internal API for managing locking
* src/Makefile.am: Add locking code
2011-06-02 10:54:00 +01:00
Matthias Bolte
a07d178447 Fix build with --with-driver-modules enabled
Export a bunch of missing symbols and link the remote driver to gnulib.
2011-05-27 09:51:28 +02:00
Eric Blake
b3e6e45075 build: fix 'make dist' for ./configure --without-remote
Anything generated that must end up in the tarball must either
have unconditional rules for generation (remote_protocol.c) or
must live in libvirt.git for the case where the person running
'make dist' has disabled the configure options that control the
rebuild of the generated file (remote_protocol-structs).

* src/Makefile.am (remote_protocol-structs): Add a dependency and
document why it must live in git.
($(srcdir)/remote/%_protocol.c, $(srcdir)/remote/%_protocol.c):
Unconditionally generate.
2011-05-25 16:59:36 -06:00