Commit Graph

495 Commits

Author SHA1 Message Date
Eric Blake
ae94cf2d13 build: avoid check-symfile on non-Linux
I tested both OpenBSD and cygwin; both failed 'make check' with:

  GEN    check-symfile
Can't return outside a subroutine at ./check-symfile.pl line 13.

Perl requires 'exit 77' instead of 'return 77' in that context,
but even with that tweak, the build still fails, since the exit
code of 77 is only special to explicit TESTS=foo listings, and
not to make-only dependency rules where we are not going through
automake's test framework.

* src/check-symfile.pl: Kill bogus platform check...
* src/Makefile.am (check-symfile): ...and replace with an automake
conditional.
2012-09-05 13:10:18 -06:00
Eric Blake
d74e5a4dfc build: use correct libraries for clock_gettime
On OpenBSD, clock_gettime() exists in libc rather than librt, and
blindly linking with -lrt made the build fail.  Gnulib already
did the work for determining which libraries to use, so we should
reuse that work rather than doing it ourselves.

* bootstrap.conf (gnulib_modules): Pull in clock-time.
* configure.ac (RT_LIBS): Drop.
* src/Makefile.am (libvirt_util_la_LIBADD): Use gnulib variable
instead.
* src/util/virtime.c (includes): Simplify.
2012-09-04 10:57:25 -06:00
Laine Stump
9cb9cbee96 build: add LIBNL_CFLAGS to build of libvirt_lxc
When libvirt_lxc is built, it uses the utility library and #includes
virnetdev.h, which #includes virnetlink.h, which includes
<netlink/msg.h>.

Normally, the netlink include directory would be just off
/usr/include, so that wouldn't create a problem, but on Fedora and
RHEL systems using libnl3, the libnl includes have been moved into
/usr/include/libnl3 (to allow concurrent installation of libnl-1.1).

All other binaries that need it have added $(LIBNL_CFLAGS) to their
CFLAGS, but not libvirt_lxc, so it fails to build on Fedora and RHEL
that have only libnl3-devel installed. This was previously unnoticed
because everyone was building with libnl headers in
/usr/include/netlink (even on systems with the headers in
/usr/include/libnl3/netlink, many people (like me) usually also have
the libnl1.1 headers in /usr/include/netlink).

This patch adds the necessary CFLAGS for libvirt_lxc.

Note that we don't need to add $(LIBNL_LIBS) to the LDADD for this
binary, because it never directly calls libnl functions, but only
calls them indirectly through the util library, which it's already
linking against.
2012-08-25 14:47:04 -04:00
Eric Blake
6478ec1673 snapshot: split snapshot conf code into own file
This has several benefits:
1. Future snapshot-related code has a definite place to go (and I
_will_ be adding some)
2. Snapshot errors now use the VIR_FROM_DOMAIN_SNAPSHOT error
classification, which has been underutilized (previously only in
libvirt.c)

* src/conf/domain_conf.h, domain_conf.c: Split...
* src/conf/snapshot_conf.h, snapshot_conf.c: ...into new files.
* src/Makefile.am (DOMAIN_CONF_SOURCES): Build new files.
* po/POTFILES.in: Mark new file for translation.
* src/vbox/vbox_tmpl.c: Update caller.
* src/esx/esx_driver.c: Likewise.
* src/qemu/qemu_command.c: Likewise.
* src/qemu/qemu_domain.h: Likewise.
2012-08-24 09:51:08 -06:00
Daniel P. Berrange
66473616c8 Fix typo in Makefile.am s/LDFOAGS/LDFLAGS/ 2012-08-22 11:42:47 +01:00
Eric Blake
4fce1c43ca build: avoid $(builddir) in Makefile
Older automake 1.9.6 (hello there, RHEL 5) did not populate
$(builddir), which meant 'make check' failed with:

make[3]: *** No rule to make target `/.libs/libvirt.la', needed by `check-symfile'.  Stop.

For that matter, even newer automake doesn't directly emit rules
to build .libs/libvirt.la; we are better off basing our rules
on the public ./libvirt.la.

* src/Makefile.am (check-symfile): Delete useless variable.
2012-08-21 14:33:03 -06:00
Eric Blake
f97d02d7be build: network requires location of dbus headers
Without this patch, RHEL 5 fails to compile, since the dbus
files lives under /usr/include/dbus-1.0/dbus/dbus.h, and
DBUS_CFLAGS contains -I/usr/include/dbus-1.0.

In file included from network/bridge_driver.c:67:
../src/util/virdbus.h:26:25: error: dbus/dbus.h: No such file or directory

* src/Makefile.am (libvirt_driver_network_impl_la_CFLAGS): Add
DBUS_CFLAGS.
2012-08-21 14:27:38 -06:00
Stefan Berger
4efde75fab nwfilter: provide basic support for firewalld
This patch provides basic support for using firewalld's firewall-cmd
rather than then plain eb/ip(6)tables commands.
2012-08-21 13:40:58 -04:00
Thomas Woerner
bf156385a0 network: use firewalld instead of iptables, when available
* configure.ac, spec file: firewalld defaults to enabled if dbus is
  available, otherwise is disabled. If --with_firewalld is explicitly
  requested and dbus is not available, configure will fail.

* bridge_driver: add dbus filters to get the FirewallD1.Reloaded
  signal and DBus.NameOwnerChanged on org.fedoraproject.FirewallD1.
  When these are encountered, reload all the iptables reuls of all
  libvirt's virtual networks (similar to what happens when libvirtd is
  restarted).

* iptables, ebtables: use firewall-cmd's direct passthrough interface
  when available, otherwise use iptables and ebtables commands. This
  decision is made once the first time libvirt calls
  iptables/ebtables, and that decision is maintained for the life of
  libvirtd.

* Note that the nwfilter part of this patch was separated out into
  another patch by Stefan in V2, so that needs to be revised and
  re-reviewed as well.

================

All the configure.ac and specfile changes are unchanged from Thomas'
V3.

V3 re-ran "firewall-cmd --state" every time a new rule was added,
which was extremely inefficient.  V4 uses VIR_ONCE_GLOBAL_INIT to set
up a one-time initialization function.

The VIR_ONCE_GLOBAL_INIT(x) macro references a static function called
vir(Ip|Eb)OnceInit(), which will then be called the first time that
the static function vir(Ip|Eb)TablesInitialize() is called (that
function is defined for you by the macro). This is
thread-safe, so there is no chance of any race.

IMPORTANT NOTE: I've left the VIR_DEBUG messages in these two init
functions (one for iptables, on for ebtables) as VIR_WARN so that I
don't have to turn on all the other debug message just to see
these. Even if this patch doesn't need any other modification, those
messages need to be changed to VIR_DEBUG before pushing.

This one-time initialization works well. However, I've encountered
problems with testing:

1) Whenever I have enabled the firewalld service, *all* attempts to
call firewall-cmd from within libvirtd end with firewall-cmd hanging
internally somewhere. This is *not* the case if firewall-cmd returns
non-0 in response to "firewall-cmd --state" (i.e. *that* command runs
and returns to libvirt successfully.)

2) If I start libvirtd while firewalld is stopped, then start
firewalld later, this triggers libvirtd to reload its iptables rules,
however it also spits out a *ton* of complaints about deletion failing
(I suppose because firewalld has nuked all of libvirt's rules). I
guess we need to suppress those messages (which is a more annoying
problem to fix than you might think, but that's another story).

3) I noticed a few times during this long line of errors that
firewalld made a complaint about "Resource Temporarily
unavailable. Having libvirtd access iptables commands directly at the
same time as firewalld is doing so is apparently problematic.

4) In general, I'm concerned about the "set it once and never change
it" method - if firewalld is disabled at libvirtd startup, causing
libvirtd to always use iptables/ebtables directly, this won't cause
*terrible* problems, but if libvirtd decides to use firewall-cmd and
firewalld is later disabled, libvirtd will not be able to recover.
2012-08-21 13:40:58 -04:00
Eric Blake
1a4379cb21 build: split driver_storage into convenience library
Commit 1d22ba95 was complete at the time, but we have since
reintroduced a warning that is fixed in the same manner:

  CCLD   storagebackendsheepdogtest

*** Warning: Linking the executable storagebackendsheepdogtest against the loadable module
*** libvirt_driver_storage.so is not portable!

* src/Makefile.am (libvirt_driver_storage.la): Factor into new
convenience library libvirt_driver_storage_impl.la.
* tests/Makefile.am (storagebackendsheepdogtest_LDADD): Link to
convenience library, not shared library.
2012-08-21 09:44:14 -06:00
Peter Krempa
1193fc5f44 libssh2_transport: add main libssh2 transport implementation
This patch adds helper functions that enable us to use libssh2 in
conjunction with libvirt's virNetSockets for ssh transport instead of
spawning "ssh" client process.

This implemetation supports tunneled plaintext, keyboard-interactive,
private key, ssh agent based and null authentication. Libvirt's Auth
callback is used for interaction with the user. (Keyboard interactive
authentication, adding of host keys, private key passphrases). This
enables seamless integration into the application using libvirt. No
helpers as "ssh-askpass" are needed.

Reading and writing of OpenSSH style "known_hosts" files is supported.

Communication is done using SSH exec channel, where the user may specify
arbitrary command to be executed on the remote side and reads and writes
to/from stdin/out are sent through the ssh channel. Usage of stderr is
not (yet) supported.
2012-08-21 14:47:09 +02:00
Shradha Shah
f9150c8158 conf: move DevicePCIAddress functions to separate file
Move the functions the parse/format, and validate PCI addresses to
their own file so they can be conveniently used in other places
besides device_conf.c

Refactoring existing code without causing any functional changes to
prepare for new code.

This patch makes the code reusable.

Signed-off-by: Shradha Shah <sshah@solarflare.com>
2012-08-17 15:43:25 -04:00
Eric Blake
b44e6bef90 build: ship stamp files
'make distcheck' fails because the generated ESX and HyperV files
are (intentionally) marked read-only, but since the stamp file was
missing, make assumes they need to be rebuilt.  Shipping the stamp
file solves the problem.

* src/Makefile.am (EXTRA_DIST): Ship stamp files.
2012-08-16 16:37:26 -06:00
Laine Stump
3f9274a524 conf: add <vlan> element to network and domain interface elements
The following config elements now support a <vlan> subelements:

within a domain: <interface>, and the <actual> subelement of <interface>
within a network: the toplevel, as well as any <portgroup>

Each vlan element must have one or more <tag id='n'/> subelements.  If
there is more than one tag, it is assumed that vlan trunking is being
requested. If trunking is required with only a single tag, the
attribute "trunk='yes'" should be added to the toplevel <vlan>
element.

Some examples:

  <interface type='hostdev'/>
    <vlan>
      <tag id='42'/>
    </vlan>
    <mac address='52:54:00:12:34:56'/>
    ...
  </interface>

  <network>
    <name>vlan-net</name>
    <vlan trunk='yes'>
      <tag id='30'/>
    </vlan>
    <virtualport type='openvswitch'/>
  </network>

  <interface type='network'/>
    <source network='vlan-net'/>
    ...
  </interface>

  <network>
    <name>trunk-vlan</name>
    <vlan>
      <tag id='42'/>
      <tag id='43'/>
    </vlan>
    ...
  </network>

  <network>
    <name>multi</name>
    ...
    <portgroup name='production'/>
      <vlan>
        <tag id='42'/>
      </vlan>
    </portgroup>
    <portgroup name='test'/>
      <vlan>
        <tag id='666'/>
      </vlan>
    </portgroup>
  </network>

  <interface type='network'/>
    <source network='multi' portgroup='test'/>
    ...
  </interface>

IMPORTANT NOTE: As of this patch there is no backend support for the
vlan element for *any* network device type. When support is added in
later patches, it will only be for those select network types that
support setting up a vlan on the host side, without the guest's
involvement. (For example, it will be possible to configure a vlan for
a guest connected to an openvswitch bridge, but it won't be possible
to do that for one that is connected to a standard Linux host bridge.)
2012-08-15 13:10:57 -04:00
Laine Stump
cfbdd005e9 util: add virNetDevVlanType
To allow for the possibility of vlan "trunks", which have more than
one vlan tag associated with them, we need a vlan struct. Since it
will be used by multiple files in src/util, src/conf, src/network, and
src/qemu, it must be defined in src/util. Unfortunately there isn't
currently a common file for simple netdev data definitions, so I
created a new file.
2012-08-15 13:10:57 -04:00
Eric Blake
c606671aaa random: link with -lm when needed
Use of ldexp() requires -lm on some platforms; use gnulib to determine
this for our makefile.  Also, optimize virRandomInt() for the case
of a power-of-two limit (actually rather common, given that Daniel
has a pending patch to replace virRandomBits(10) with code that will
default to virRandomInt(1024) on default SELinux settings).

* .gnulib: Update to latest, for ldexp.
* bootstrap.conf (gnulib_modules): Import ldexp.
* src/Makefile.am (libvirt_util_la_CFLAGS): Link with -lm when
needed.
* src/util/virrandom.c (virRandomInt): Optimize powers of 2.
2012-08-14 15:33:10 -06:00
Eric Blake
37f3cd416c build: fix link error with appArmor
Commit bb705e25 missed that the appArmor helper file also needs to
resolve the new symbols dragged in by domain_conf.c.

* src/Makefile.am (SECURITY_DRIVER_APPARMOR_HELPER_SOURCES): Pull
in datatypes.c.
2012-08-14 11:44:40 -06:00
Osier Yang
bb705e2519 Destroy virdomainlist.[ch]
As the consensus in:
https://www.redhat.com/archives/libvir-list/2012-July/msg01692.html,
this patch is to destroy conf/virdomainlist.[ch], folding the
helpers into conf/domain_conf.[ch].

* src/Makefile.am:
  - Various indention fixes incidentally
  - Add macro DATATYPES_SOURCES (datatypes.[ch])
  - Link datatypes.[ch] for libvirt_lxc

* src/conf/domain_conf.c:
  - Move all the stuffs from virdomainlist.c into it
  - Use virUnrefDomain and virUnrefDomainSnapshot instead of
    virDomainFree and virDomainSnapshotFree, which are defined
    in libvirt.c, and we don't want to link to it.
  - Remove "if" before "free" the object, as virObjectUnref
    is in the list "useless_free_options".

* src/conf/domain_conf.h:
  - Move all the stuffs from virdomainlist.h into it
  - s/LIST_FILTER/LIST_DOMAINS_FILTER/

* src/libxl/libxl_driver.c:
  - s/LIST_FILTER/LIST_DOMAINS_FILTER/
  - no (include "virdomainlist.h")

* src/libxl/libxl_driver.c: Likewise

* src/lxc/lxc_driver.c: Likewise

* src/openvz/openvz_driver.c: Likewise

* src/parallels/parallels_driver.c: Likewise

* src/qemu/qemu_driver.c: Likewise

* src/test/test_driver.c: Likewise

* src/uml/uml_driver.c: Likewise

* src/vbox/vbox_tmpl.c: Likewise

* src/vmware/vmware_driver.c: Likewise

* tools/virsh-domain-monitor.c: Likewise

* tools/virsh.c: Likewise
2012-08-14 17:27:49 +08:00
Cole Robinson
7e6f80107c build: Distribute check-symfile.pl
Otherwise distcheck can fail with:

  GEN      check-symfile
  Can't open perl script "../../src/check-symfile.pl": No such file or directory
  make[4]: *** [check-symfile] Error 2
2012-08-13 15:26:13 -04:00
Laine Stump
54264111ff build: fix binary location in stap files --with-driver-modules
libvirt_qemu_probes.stp stopped working after switching to a build
that used --with-driver-modules. This was because the symbols listed
int libvirt_qemu_probes.stp are no longer in $(bindir)/libvirtd, but
are now in $(libdir)/connection-driver/libvirt_driver_qemu.so.

This patch enhances dtrace2systemtap.pl (which generates the .stp
files from .d files) to look for a new "module" setting in the
comments of the .d file (similar to the existing "binary" setting),
and to look for a --with-modules option. If the --with-modules option
is set *and* a "module" setting is present in the .d file, the process
name for the stap line is set to

   $libdir/$module

If either of these isn't true, it reverts to the old behavior.

src/Makefile.am was also modified to add the --with-modules option
when the build calls for it, and src/libvirt_qemu_probes.d has added a
"module" line pointing to the correct .so file for the qemu driver.
2012-08-10 23:11:26 -04:00
Daniel P. Berrange
784a99f794 Add a generic reference counted virObject type
This introduces a fairly basic reference counted virObject type
and an associated virClass type, that use atomic operations for
ref counting.

In a global initializer (recommended to be invoked using the
virOnceInit API), a virClass type must be allocated for each
object type. This requires a class name, a "dispose" callback
which will be invoked to free memory associated with the object's
fields, and the size in bytes of the object struct.

eg,

   virClassPtr  connclass = virClassNew("virConnect",
                                        sizeof(virConnect),
                                        virConnectDispose);

The struct for the object, must include 'virObject' as its
first member

eg

  struct _virConnect {
    virObject object;

    virURIPtr uri;
  };

The 'dispose' callback is only responsible for freeing
fields in the object, not the object itself. eg a suitable
impl for the above struct would be

  void virConnectDispose(void *obj) {
     virConnectPtr conn = obj;
     virURIFree(conn->uri);
  }

There is no need to reset fields to 'NULL' or '0' in the
dispose callback, since the entire object will be memset
to 0, and the klass pointer & magic integer fields will
be poisoned with 0xDEADBEEF before being free()d

When creating an instance of an object, one needs simply
pass the virClassPtr eg

   virConnectPtr conn = virObjectNew(connclass);
   if (!conn)
      return NULL;
   conn->uri = virURIParse("foo:///bar")

Object references can be manipulated with

   virObjectRef(conn)
   virObjectUnref(conn)

The latter returns a true value, if the object has been
freed (ie its ref count hit zero)

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-08-07 11:47:41 +01:00
Daniel P. Berrange
7de158cf68 Fix typo s/AM_CLFAGS/AM_CFLAGS/ in sanlock link 2012-08-03 15:34:58 +01:00
Eric Blake
1f6f723ce1 build: add stubs so mdns code can be unconditionally compiled
The recent changes to the testsuite to validate exported symbols
flushed out a case of unconditionally exporting symbols that
were only conditionally compiled under HAVE_AVAHI.

* src/Makefile.am (libvirt_net_rpc_server_la_SOURCES): Compile
virnetservermdns unconditionally.
* configure.ac (HAVE_AVAHI): Drop unused automake conditional.
* src/rpc/virnetservermdns.c: Add fallbacks when Avahi is not
present.
2012-08-02 13:35:21 -06:00
Jiri Denemark
d3084c2a24 build: Rename security manager library
Security manager is not a dynamically loadable driver. Let's avoid the
confusion by renaming libvirt_driver_security library as
libvirt_security_manager.
2012-08-02 16:17:07 +02:00
Jiri Denemark
2f2ca02195 build: Link security manager into libvirt.so
Security manager is not a dynamically loadable driver, it's a common
infrastructure similar to util, conf, cpu, etc. used by individual
drivers. Such code is allowed to be linked into libvirt.so.

This reverts commit ec5b7bd2ec and most of
aae5cfb699.

This patch is supposed to fix virdrivermoduletest failures for qemu and
lxc drivers as well as libvirtd's ability to load qemu and lxc drivers.
2012-08-02 16:17:00 +02:00
Daniel P. Berrange
0c9fd4cfe9 Rewrite virAtomic APIs using GLib's atomic ops code
There are a few issues with the current virAtomic APIs

 - They require use of a virAtomicInt struct instead of a plain
   int type
 - Several of the methods do not implement memory barriers
 - The methods do not implement compiler re-ordering barriers
 - There is no Win32 native impl

The GLib library has a nice LGPLv2+ licensed impl of atomic
ops that works with GCC, Win32, or pthreads.h that addresses
all these problems. The main downside to their code is that
the pthreads impl uses a single global mutex, instead of
a per-variable mutex. Given that it does have a Win32 impl
though, we don't expect anyone to seriously use the pthread.h
impl, so this downside is not significant.

* .gitignore: Ignore test case
* configure.ac: Check for which atomic ops impl to use
* src/Makefile.am: Add viratomic.c
* src/nwfilter/nwfilter_dhcpsnoop.c: Switch to new atomic
  ops APIs and plain int datatype
* src/util/viratomic.h: inline impls of all atomic ops
  for GCC, Win32 and pthreads
* src/util/viratomic.c: Global pthreads mutex for atomic
  ops
* tests/viratomictest.c: Test validate to validate safety
  of atomic ops.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-08-02 11:50:59 +01:00
Daniel Veillard
04cd70bfd3 Add missing parallels_utils.h to Makefile.am
Otherwise the file is missing from the dist tarball and distcheck fails
2012-08-01 14:12:09 +08:00
Dmitry Guryanov
aa296e6c29 parallels: add storage driver
Parallels Cloud Server has one serious discrepancy with libvirt:
libvirt stores domain configuration files in one place, and storage
files in other places (with the API of storage pools and storage volumes).
Parallels Cloud Server stores all domain data in a single directory,
for example, you may have domain with name fedora-15, which will be
located in '/var/parallels/fedora-15.pvm', and it's hard disk image will be
in '/var/parallels/fedora-15.pvm/harddisk1.hdd'.

I've decided to create storage driver, which produces pseudo-volumes
(xml files with volume description), and they will be 'converted' to
real disk images after attaching to a VM.

So if someone creates VM with one hard disk using virt-manager,
at first virt-manager creates a new volume, and then defines a
domain. We can lookup a volume by path in XML domain definition
and find out location of new domain and size of its hard disk.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:48:01 +08:00
Dmitry Guryanov
e93c33a987 parallels: add functions to list domains and get info
Parallels driver is 'stateless', like vmware or openvz drivers.
It collects information about domains during startup using
command-line utility prlctl. VMs in Parallels are identified by UUIDs
or unique names, which can be used as respective fields in
virDomainDef structure. Currently only basic info, like
description, virtual cpus number and memory amount, is implemented.
Querying devices information will be added in the next patches.

Parallels doesn't support non-persistent domains - you can't run
a domain having only disk image, it must always be registered
in system.

Functions for querying domain info have been just copied from
test driver with some changes - they extract needed data from
previously created list of virDomainObj objects.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:36 +08:00
Dmitry Guryanov
cafc26ff5f parallels: add driver skeleton
Parallels Cloud Server is a cloud-ready virtualization
solution that allows users to simultaneously run multiple virtual
machines and containers on the same physical server.

More information can be found here: http://www.parallels.com/products/pcs/
Also beta version of Parallels Cloud Server can be downloaded there.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:26 +08:00
Daniel P. Berrange
8c63ff3937 Only perform symbol check against libvirt.so
The 'check-symfile' test case was checking the contents of
libvirt.syms against libvirt.so + all of libvirt_driver_XXX.so
This was in fact bogus - libvirt.syms should only refer to
stuff in libvirt.so, but it had some symbols from the various
driver modules in it too. Now that libvirt.syms has been
fixed, the check-symfile test can be simplified to only
consider libvirt.so
2012-07-31 17:49:41 +01:00
Daniel P. Berrange
aae5cfb699 Don't link nwfilter or secrets driver to libvirt.so
The nwfilter and secrets drivers are both stateful and are already
linked directly to libvirtd. Linking them to libvirt.so is thus
wrong, likewise exporting their symbols in libvirt.so is wrong
2012-07-31 17:49:41 +01:00
Daniel P. Berrange
5830c72e15 Remove bogus libvirt_network.syms file
The network driver is stateful, so it is linked directly to libvirtd,
rather than libvirt.so. Thus there are no network symbols to be exported
in libvirt.so, and libvirt_network.syms can be deleted
2012-07-31 17:49:41 +01:00
Daniel P. Berrange
9117fcb263 Run an RPC protocol over the LXC controller monitor
This defines a new RPC protocol to be used between the LXC
controller and the libvirtd LXC driver. There is only a
single RPC message defined thus far, an asynchronous "EXIT"
event that is emitted just before the LXC controller process
exits. This provides the LXC driver with details about how
the container shutdown - normally, or abnormally (crashed),
thus allowing the driver to emit better libvirt events.

Emitting the event in the LXC controller requires a few
little tricks with the RPC service. Simply calling the
virNetServiceClientSendMessage does not work, since this
merely queues the message for asynchronous processing.
In addition the main event loop is no longer running at
the point the event is emitted, so no I/O is processed.

Thus after invoking virNetServiceClientSendMessage it is
necessary to mark the client as being in "delayed close"
mode. Then the event loop is run again, until the client
completes its close - this happens only after the queued
message has been fully transmitted. The final complexity
is that it is not safe to run virNetServerQuit() from the
client close callback, since that is invoked from a
context where the server is locked. Thus a zero-second
timer is used to trigger shutdown of the event loop,
causing the controller to finally exit.

* src/Makefile.am: Add rules for generating RPC protocol
  files and dispatch methods
* src/lxc/lxc_controller.c: Emit an RPC event immediately
  before exiting
* src/lxc/lxc_domain.h: Record the shutdown reason
  given by the controller
* src/lxc/lxc_monitor.c, src/lxc/lxc_monitor.h: Register
  RPC program and event handler. Add callback to let
  driver receive EXIT event.
* src/lxc/lxc_process.c: Use monitor exit event to decide
  what kind of domain event to emit
* src/lxc/lxc_protocol.x: Define wire protocol for LXC
  controller monitor.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 13:07:43 +01:00
Daniel P. Berrange
ca5ab84073 Make RPC code generator a little more flexible
Update the gendispatch.pl script to get a little closer to
being able to generate code for the LXC monitor, by passing
in the struct prefix separately from the procedure prefix.
Also allow method names using virCapitalLetters instead
of vir_underscore_separator

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:50:23 +01:00
Daniel P. Berrange
de4b32e4bf Move LXC monitor code out into separate file
Move the code that handles the LXC monitor out of the
lxc_process.c file and into lxc_monitor.{c,h}

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:50:22 +01:00
Daniel P. Berrange
536a1d7d0a Add a test case that checks there are no bogus entries in .syms
During refactoring of code, it has proved common to forget to
remove old symbols from the .syms file. While the Win32 linker
will complain about this, the Linux ELF linker does not. The
new test case validates that every symbol listed in the .syms
file actually exists in the built ELF libraries.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-27 10:54:38 +01:00
Daniel P. Berrange
1bfb47dfe6 Make ESX & Hyper-V code generator safe with parallel builds
If from a clean GIT checkout 'make -j 8' is run, the ESX
and Hyper-V code will be generated multiple times over.
This is because there are multiple files being generated
from one invocation of the generator script. make does not
realize this and so invokes the generator once per file.
This doesn't matter with serialized builds, but with
parallel builds multiple instances of the generator get
run at once.

make[2]: Entering directory `/home/berrange/src/virt/libvirt/src'
  GEN    util/virkeymaps.h
  GEN    remote/remote_protocol.h
  GEN    remote/remote_client_bodies.h
  GEN    remote/qemu_protocol.h
  GEN    remote/qemu_client_bodies.h
  GEN    esx/esx_vi_methods.generated.c
  GEN    esx/esx_vi_methods.generated.h
  GEN    esx/esx_vi_methods.generated.macro
  GEN    esx/esx_vi_types.generated.c
  GEN    esx/esx_vi_types.generated.h
  GEN    esx/esx_vi_types.generated.typedef
  GEN    esx/esx_vi_types.generated.typedef
  GEN    esx/esx_vi_types.generated.typeenum
  GEN    esx/esx_vi_types.generated.typetostring
  GEN    esx/esx_vi_types.generated.typefromstring
  GEN    esx/esx_vi_types.generated.h
  GEN    esx/esx_vi_types.generated.c
  GEN    esx/esx_vi_methods.generated.h
  GEN    esx/esx_vi_methods.generated.c
  GEN    esx/esx_vi_methods.generated.macro
  GEN    esx/esx_vi.generated.h
  GEN    esx/esx_vi.generated.c
  GEN    esx/esx_vi_types.generated.typeenum
  GEN    esx/esx_vi_types.generated.typedef
  GEN    esx/esx_vi_types.generated.typeenum
  GEN    esx/esx_vi_types.generated.typetostring
  GEN    esx/esx_vi_types.generated.typefromstring
  GEN    esx/esx_vi_types.generated.h
  GEN    esx/esx_vi_types.generated.c
  GEN    esx/esx_vi_methods.generated.h
  ...snip...
  GEN    hyperv/hyperv_wmi.generated.h
  GEN    libvirt_qemu_probes.h
  GEN    locking/qemu-sanlock.conf
  GEN    hyperv/hyperv_wmi.generated.c
  GEN    rpc/virnetprotocol.h
  GEN    hyperv/hyperv_wmi_classes.generated.typedef
  GEN    hyperv/hyperv_wmi_classes.generated.h
  GEN    hyperv/hyperv_wmi_classes.generated.c
  GEN    rpc/virkeepaliveprotocol.h
  GEN    remote/remote_protocol.c
  GEN    remote/qemu_protocol.c
  GEN    rpc/virkeepaliveprotocol.c
  GEN    rpc/virnetprotocol.c
  GEN    libvirt.def

Prevent this using a timestamp file to control generation,
as was previously done for the python bindings in commit
a7868e0131

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-23 15:49:15 +01:00
Daniel P. Berrange
fdf588a63d Move LXC process management code into separate file
Move all the code that manages stop/start of LXC processes
into separate lxc_process.{c,h} file to make the lxc_driver.c
file smaller

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-19 16:55:23 +01:00
Daniel P. Berrange
43e532d321 Move cgroup setup code out of lxc_controller.c
Move the cgroup setup code out of the lxc_controller.c file
and into lxc_cgroup.{c,h}. This reduces the size of the
lxc_controller.c file and paves the way to invoke cgroup
setup from lxc_driver.c instead of lxc_controller.c in the
future

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-19 16:55:00 +01:00
Daniel P. Berrange
f93518c7ef Move LXC domain private data into separate file
Move the LXC driver code related to the virDomainObjPtr
private data into separate lxc_domain.{c,h} files
to reduce the size of lxc_driver.c

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-19 16:54:54 +01:00
Sebastian Wiedenroth
29bc4fe646 Add a sheepdog backend for the storage driver
This patch brings support to manage sheepdog pools and volumes to libvirt.
It uses the "collie" command-line utility that comes with sheepdog for that.

A sheepdog pool in libvirt maps to a sheepdog cluster.
It needs a host and port to connect to, which in most cases
is just going to be the default of localhost on port 7000.

A sheepdog volume in libvirt maps to a sheepdog vdi.
To create one specify the pool, a name and the capacity.
Volumes can also be resized later.

In the volume XML the vdi name has to be put into the <target><path>.
To use the volume as a disk source for virtual machines specify
the vdi name as "name" attribute of the <source>.
The host and port information from the pool are specified inside the host tag.

  <disk type='network'>
    ...
    <source protocol="sheepdog" name="vdi_name">
      <host name="localhost" port="7000"/>
    </source>
  </disk>

To work right this patch parses the output of collie,
so it relies on the raw output option. There recently was a bug which caused
size information to be reported wrong. This is fixed upstream already and
will be in the next release.

Signed-off-by: Sebastian Wiedenroth <wiedi@frubar.net>
2012-07-18 20:08:27 +01:00
Chuck Short
db4eba91a7 ARMHF: CPU Support for armhf.
Adding CPU encoder/decoder for armhf to avoid runtime error messages.

Signed-off-by: Chuck Short <chuck.short@canonical.com>
2012-07-13 10:03:22 -06:00
Daniel P. Berrange
9a4d0b5170 Switch to using virNetServer APIs for monitor socket
In preparation for introducing a full RPC protocol for
libvirt_lxc, switch over to using the virNetServer APIs
for the monitor connection

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-05 10:46:10 +01:00
Daniel P. Berrange
284143bbee Avoid build shared source files again for libvirt_lxc
Currently the build of libvirt_lxc will cause recompilation
of all sources under src/util, src/conf, src/security and
more. Switch the libvirt_lxc process to link against the
libtool convenience libraries that are already built as
part of the main libvirt.os & libvirtd build process

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-05 10:46:09 +01:00
Thang Pham
c7c8080469 S390: CPU support for s390(x)
Adding CPU encoder/decoder for s390 to avoid runtime error messages.

Signed-off-by: Thang Pham <thang.pham@us.ibm.com>
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
2012-06-25 16:43:18 +02:00
Peter Krempa
2c68080444 conf: Add helper for listing domains on drivers supporting virDomainObj
This patch adds common code to list domains in fashion used by
virListAllDomains with all currently supported flags. The header file
also contains macros that group filters together that are used to
shorten filter conditions.
2012-06-18 21:24:13 +02:00
Eric Blake
9b5970c6c4 build: fix 'make dist' on virgin checkout
'make dist' was depending on *protocol-structs files, which are
stored in git but in turn depended on generated files.  We still
want to ship the protocol-structs files, but by renaming the
tests to something not matching a file name, we separate 'make
check' (which depends on the generated file) from 'make dist'
(which only depends on the git files).  After all, the tarball
should never depend on a generated file not stored in git.

I found one more case of a git file depending on a generated
file, in a bogus virkeycode.c listing; but at least this one
had no associated rules so it never broke 'make dist'.

Reported by Wen Congyang.  Latent bug has been present since
commit 62dee6f, but only recently exposed by commit 7bff56a.

* src/Makefile.am ($(srcdir)/util/virkeycode.c): Drop useless
dependency.
(BUILT_SOURCES): ...and build virkeymaps.h sooner.
(PROTOCOL_STRUCTS): Rather than depend on the struct file...
(check-local): ...convert things into a phony target of...
(check-protocol): ...a new check.
($(srcdir)/remote_protocol-struct): Rename to isolate the distributed
file from the conditional test.
(PDWTAGS): Deal with rename.  Swap to compare 'expected actual'.
2012-06-12 22:35:55 -06:00
Eric Blake
ca02b101d7 build: fix build of fresh checkout
Commit 7bff56a worked in an incremental build, but fails for a
fresh clone; apparently, if make sees both an actual file
spelling and an inference rule, only the exact spelling is used.

  CCLD   libvirt_driver_test.la
  CC     libvirt_driver_remote_la-remote_driver.lo
remote/remote_driver.c:4707:34: fatal error: remote_client_bodies.h: No such file or directory
compilation terminated.

BUILT_SOURCES to the rescue, instead of trying to mess with .lo
dependencies directly.

* src/Makefile.am (REMOTE_DRIVER_PREREQS, %remote_driver.lo): Drop...
(BUILT_SOURCES): ...and add here instead.
2012-06-06 14:49:27 -06:00
Eric Blake
3c3644d30f build: ensure storage driver is used
Commit 1c275e9a accidentally dropped the storage driver from
libvirtd, because it depended on a C preprocessor macro that
was not defined.  Furthermore, if you do './configure
--without-storage-dir --with-storage-disk' or any other combination
where you explicitly build a subset of storage backends excluding
the dir backend, then the build is broken.

Based on analysis by Osier Yang.

* configure.ac (WITH_STORAGE): Define top-level conditional.
* src/Makefile.am (mod_LTLIBRARIES): Build driver even when
storage_dir is disabled.
* daemon/libvirtd.c: Pick up storage driver for any backend, not
just dir.
* daemon/Makefile.am (libvirtd_LDADD): Likewise.
2012-06-06 12:16:07 +08:00