Commit Graph

10332 Commits

Author SHA1 Message Date
Dmitry Guryanov
e356f6100d parallels: implement virDomainDefineXML operation for existing domains
Add parallelsDomainDefineXML function, it works only for existing
domains for the present.

It's too hard to convert libvirt's XML domain configuration into
Parallel's one, so I've decided to compare virDomainDef structures:
current domain definition and the one created from XML, given to
the function. And change only different parameters.

Currently only name, description, number of cpus, memory amount
and video memory can be changed.

Video device and console added, because libvirt supposes that
VM must always have one video device, if there are some
graphics and one console.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:50 +08:00
Dmitry Guryanov
d71145ad07 parallels: add support of VNC remote display
Add support for reading VNC parameters of the VM.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:46 +08:00
Dmitry Guryanov
e172cd50ae parallels: get info about serial ports
Add support of collecting information about serial
ports. This change is needed mostly as an example,
support of other devices will be added later.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:43 +08:00
Dmitry Guryanov
0740e1bb01 parallels: implement functions for domain life cycle management
Add functions for create/shutdown/destroy and suspend/resume domain.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:40 +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
4033df7ed8 add function virCommandNewVAList
Add function virCommandNewVAList which is equivalent to the
virCommandNewArgList but with va_list instead of a variable number
of arguments.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:32 +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
Marc-André Lureau
2beed2daaf qemu: syntax fix
Pushed without ack, under the trivial rule.
2012-07-31 19:51:41 +02:00
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
Eric Blake
665c8cdecc qemu: fix use after free
Detected by Coverity.

* src/qemu/qemu_hotplug.c (qemuDomainAttachHostDevice): Avoid
double free of usb on failure.
2012-07-31 08:10:59 -06:00
Jiri Denemark
73bc94c56a build: Don't export xenLinuxDomainBlockStats symbol
The symbol is only used within Xen driver.
2012-07-31 11:28:32 +02:00
Guannan Ren
b254cad931 build: distribute virsh related source files
In virsh.c, it includes multiple virsh source files, we need
to have them distributed.
2012-07-31 14:31:43 +08:00
Eric Blake
6f926c5ef6 build: fix build without HAVE_CAPNG
Otherwise, a build may fail with:

lxc/lxc_conatiner.c: In function 'lxcContainerDropCapabilities':
lxc/lxc_container.c:1662:46: error: unused parameter 'keepReboot' [-Werror=unused-parameter]

* src/lxc/lxc_container.c (lxcContainerDropCapabilities): Mark
parameter unused.
2012-07-30 11:59:25 -06:00
Jiri Denemark
6039a2cb49 daemon: Fix crash in virTypedParameterArrayClear
Daemon uses the following pattern when dispatching APIs with typed
parameters:

    VIR_ALLOC_N(params, nparams);
    virDomain*(dom, params, &nparams, flags);
    virTypedParameterArrayClear(params, nparams);

In case nparams was originally set to 0, virDomain* API would fill it
with the number of typed parameters it can provide and we would use this
number (rather than zero) to clear params. Because VIR_ALLOC* returns
non-NULL pointer even if size is 0, the code would end up walking
through random memory. If we were lucky enough and the memory contained
7 (VIR_TYPED_PARAM_STRING) at the right place, we would try to free a
random pointer and crash.

Let's make sure params stays NULL when nparams is 0.
2012-07-30 19:45:12 +02:00
Peter Krempa
ba226d334a conf: Remove callback from stream when freeing entries in console hash
When a domain has a active console connection and is destroyed the
callback is called on private data that no longer exist causing a
segfault.
2012-07-30 15:38:07 +02:00
Peter Krempa
7550bc66f7 conf: Remove dead code from virConsoleOpen() 2012-07-30 15:38:07 +02:00
Peter Krempa
e72f55fac1 python: Don't generate bodies for close callback functions
Commit 6ed5a1b9bd adds close callback
functions to the public API but doesn't add python implementation. This
patch sets the function to be written manually (to fix the build), but
doesn't implement them yet.
2012-07-30 15:38:07 +02:00
Daniel P. Berrange
ac97c2ba4c Improve error message in LXC startup with network is not active
If an LXC container is using a virtual network and that network
is not active, currently the user gets a rather unhelpful
error message about tap device setup failure. Add an explicit
check for whether the network is active, in exactly the same
way as the QEMU driver
2012-07-30 13:09:57 +01:00
Daniel P. Berrange
92c5924a05 Remove tabs from all perl files & enforce this
The cfg.mk file rule to check for tab characters was not
applied to perl files. Much of our Perl code is full of
tabs as a result. Kill them, kill them all !
2012-07-30 13:09:57 +01:00
Daniel P. Berrange
cb612ee489 Add handling for reboots of LXC containers
The reboot() syscall is allowed by new kernels for LXC containers.
The LXC controller can detect whether a reboot was requested
(instead of a normal shutdown) by looking at the "init" process
exit status. If a reboot was triggered, the exit status will
record SIGHUP as the kill reason.

The LXC controller has cleared all its capabilities, and the
veth network devices will no longer exist at this time. Thus
it cannot restart the container init process itself. Instead
it emits an event which is picked up by the LXC driver in
libvirtd. This will then re-create the container, using the
same configuration as it was previously running with (ie it
will not activate 'newDef').

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 13:09:56 +01:00
Daniel P. Berrange
b46b1c762a Allow CAP_SYS_REBOOT on new enough kernels
Check whether the reboot() system call is virtualized, and if
it is, then allow the container to keep CAP_SYS_REBOOT.

Based on an original patch by Serge Hallyn

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 13:07:45 +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
357866c379 Convert the LXC driver to use virNetClient
Update the LXC driver to use the virNetClient APIs for
connecting to the libvirt_lxc monitor, instead of the
low-level socket APIs. This is a step towards running
a full RPC protocol with libvirt_lxc

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:49:07 +01:00
Daniel P. Berrange
4343fee0a8 Replace use of lxcError with virReportError
Update all LXC code to use virReportError instead of the custom
lxcError macro

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:35:08 +01:00
Daniel P. Berrange
1935471542 Rename lxc_driver_t to virLXCDriver
Rename the lxc_driver_t struct typedef to virLXCDriver to more
closely follow normal libvirt naming conventions

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:35:08 +01:00
Daniel P. Berrange
ced272efc5 Rename all APIs in lxc_domain.c to have a virLXCDomain prefix
For consistency all the APIs in the lxc_domain.c file should
have a virLXCDomain prefix in their name

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:35:08 +01:00
Daniel P. Berrange
eaf10b84ed Rename all APIs in lxc_process.c to have a virLXCProcess prefix
For consistency all the APIs in the lxc_process.c file should
have a virLXCProcess prefix in their name

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:35:08 +01:00
Daniel P. Berrange
b536e193a2 Process all pending I/O for a RPC client before checking EOF
In the socket event handler for the RPC client we must deal
with read/write events, before checking for EOF, otherwise
we might close the socket before we've read & acted upon the
last RPC messages

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:35:08 +01:00
Daniel P. Berrange
0998cdae70 Extend events demo to show close callbacks in use
Use a driver close callback to trigger shutdown of the
events demo program

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 12:35:07 +01:00
Daniel P. Berrange
b1029b6f6f Update remote driver to support the connection close callbacks
Update the remote driver to use the virNetClient close callback
to trigger the virConnectPtr close callbacks

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 10:08:41 +01:00
Daniel P. Berrange
0f7f4b160b Add callback to virNetClient to be invoked on connection close
Allow detection of socket close in virNetClient via a callback
function, triggered on any condition that causes the socket to
be closed.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 10:08:41 +01:00
Daniel P. Berrange
e5a1bee07a Ensure client is marked for close in all error paths
Currently if the keepalive timer triggers, the 'markClose'
flag is set on the virNetClient. A controlled shutdown will
then be performed. If an I/O error occurs during read or
write of the connection an error is raised back to the
caller, but the connection isn't marked for close. This
patch ensures that all I/O error scenarios always result
in the connection being marked for close.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 10:08:41 +01:00
Daniel P. Berrange
6ed5a1b9bd Add public API to register a callback to be invoked on connection close
Define new virConnect{Register,Unregister}CloseCallback() public APIs
which allows registering/unregistering a callback to be invoked when
the connection to a hypervisor is closed. The callback is provided
with the reason for the close, which may be 'error', 'eof', 'client'
or 'keepalive'.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-30 10:08:40 +01:00
Matthias Bolte
1679353496 esx: Improve error reporting for unknown VI types
Print the actual unknown type name instead of <other> for AnyType objects.
2012-07-29 07:32:25 +02:00
Jiri Denemark
ce53382ba2 security: Skip labeling resources when seclabel defaults to none
If a domain is explicitly configured with <seclabel type="none"/> we
correctly ensure that no labeling will be done by setting
norelabel=true. However, if no seclabel element is present in domain XML
and hypervisor is configured not to confine domains by default, we only
set type to "none" without turning off relabeling. Thus if such a domain
is being started, security driver wants to relabel resources with
default label, which doesn't make any sense.

Moreover, with SELinux security driver, the generated image label lacks
"s0" sensitivity, which causes setfilecon() fail with EINVAL in
enforcing mode.
2012-07-27 18:58:48 +02:00
Eric Blake
85f416fddb maint: regenerate bootstrap
Commit 3ad13c92a7 blindly touched all files to have a 3-line
hint for getting LGPL, but bootstrap is synced from gnulib where
it has a 2-line hint.

* bootstrap: Resync from gnulib.
2012-07-27 09:34:04 -06:00
Gerd v. Egidy
79ca7e4e57 libvirt-guests: systemd host shutdown does not work
I originally postet this into the Fedora bugzilla
https://bugzilla.redhat.com/show_bug.cgi?id=843836

Currently gracefully shutting down guest vms on host shutdown does not work on
Fedora 17, the guests are killed hard on system shutdown.

The reason is systemd considers libvirt-guests.service to be stopped when the
system is running:

$ systemctl status libvirt-guests.service
libvirt-guests.service - Suspend Active Libvirt Guests
          Loaded: loaded (/usr/lib/systemd/system/libvirt-guests.service;
enabled)
          Active: deactivating (stop) since Fri, 27 Jul 2012 15:47:31 +0200;
2min 48s ago
         Process: 1085 ExecStart=/etc/init.d/libvirt-guests start
(code=exited, status=0/SUCCESS)
         Control: 1150 (libvirt-guests)
          CGroup: name=systemd:/system/libvirt-guests.service
                  └ control
                    ├ 1150 /bin/sh /etc/init.d/libvirt-guests stop
                    └ 2257 sleep 1

libvirt-guests.service is defined as type "simple" in systemd (the default).
That means systemd will shut down the service when the start executable is
terminated after starting is done. Systemd will not call stop again on system
shutdown because it thinks it is already stopped.

The solution is to define it as type "oneshot" and set the flag
"RemainAfterExit". Then systemd will consider the service as active after
startup and will call the stop function on host shutdown.
2012-07-27 09:31:52 -06:00
Peter Krempa
d6e94bdd3d lib: Revert removing of Summary and Description fields in headers
Those fields are used by the apibuild script to create documentation.
This commit partialy reverts a4bcefbcff.
2012-07-27 15:47:16 +02:00
Peter Krempa
b889bac171 docs: Add method to print warnings in docBuilder class
The method was not existing and did not allow to diagnose problems.
2012-07-27 15:47:15 +02:00
Eric Blake
3ad13c92a7 maint: avoid regression on copyright listings
Commit f9ce7dad6 tried to kill uses of a raw street address, but
missed a few instances.  Automate things so we don't introduce
new problems in the future.

* cfg.mk (sc_copyright_address): New rule.
(exclude_file_name_regexp--sc_copyright_address): Add exemption.
* bootstrap.conf: Adjust offenders.
* build-aux/augeas-gentest.pl: Likewise.
* examples/systemtap/events.stp: Likewise.
* examples/systemtap/qemu-monitor.stp: Likewise.
* examples/systemtap/rpc-monitor.stp: Likewise.
* src/dtrace2systemtap.pl: Likewise.
* src/esx/esx_vi_generator.py: Likewise.
* src/hyperv/hyperv_wmi_generator.py: Likewise.
* src/remote/qemu_protocol.x: Likewise.
* src/remote/remote_protocol.x: Likewise.
* src/rpc/gensystemtap.pl: Likewise.
* src/rpc/virnetprotocol.x: Likewise.
* tests/object-locking.ml: Likewise.
* tools/virt-xml-validate.in: Likewise.
2012-07-27 07:42:34 -06:00
Osier Yang
a4bcefbcff maint: Use consistent copyright.
This is a follow up patch of commit f9ce7dad6, it modifies all
the files which declare the copyright like "See COPYING.LIB for
the License of this software" to use the detailed/consistent one.

And deserts the outdated comments like:

 * libvirt-qemu.h:
 * Summary: qemu specific interfaces
 * Description: Provides the interfaces of the libvirt library to handle
 *              qemu specific methods
 *
 * Copy:  Copyright (C) 2010, 2012 Red Hat, Inc.

Uses the more compact style like:

 * libvirt-qemu.h: Interfaces specific for QEMU/KVM driver
 *
 * Copyright (C) 2010, 2012 Red Hat, Inc.
2012-07-27 18:27:21 +08:00
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
25b0988974 Remove accidentally commited virNetClientSetEOFNotify symbol
The virNetClientSetEOFNotify symbol was accidentally added to
the libvirt_private.syms file due to an out-of-order cherry-pick
2012-07-27 10:53:50 +01:00
Daniel P. Berrange
609df0dcde Remove two non-existant NWFilter driver symbols from .syms
virNWFilterGetIpAddrForIfname and virNWFilterDelIpAddrForIfname
do not exist, so remove them from libvirt_nwfilter.syms

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-27 10:53:14 +01:00
Peter Krempa
2751ab289b virsh: Fix error resetting on fallback paths
On some fallback paths in virsh, error reported by the previously failed
API is cleared by virResetLastError() that doesn't free error stored by
virsh. This patch changes this to clear it using vshResetLibvirtError().
2012-07-27 10:34:58 +02:00
Peter Krempa
3df9626c40 virsh: Refactor error clearing on graceful fallback paths
Virsh uses an error handler to save errors from libvirt. On some code
paths it's needed to clear libvirt errors and continue on fallback code
paths without reporting failure.

This patch adds function vshResetLibvirtError() that clears error
returned by libvirt and updates all places where the old two-line method
was used.
2012-07-27 10:28:22 +02:00