If 'with_udev=check' then missing pciaccess should not be a fatal
error. It should merely disable the udev driver.
* configure.in: Fix pciaccess check to be non-fatal
Device kit support was removed, but the configure.ac checks were
left in place. A number of the XXX_REQUIRED=X.Y.Z variables were
not declared in the correct location (ie top of the file)
* configure.in: Remove device kit checks & move mis-placed variables
to correct location
The QEMU monitor open method would not take a reference on
the virDomainObjPtr until it had successfully opened the
monitor. The cleanup code upon failure to open though would
call qemuMonitorClose() which would in turn decrement the
reference count. This caused the virDoaminObjPtr to be mistakenly
freed and then the whole driver crashes
* src/qemu/qemu_monitor.c: Fix reference counting in
qemuMonitorOpen
The HAL driver returns a fatal error code in the case where HAL
is not running. This causes the entire libvirtd daemon to quit
which isn't desirable. Instead it should simply disable the HAL
driver
* src/node_device/node_device_hal.c: Quietly disable HAL if it is
not running
The 'virsh console' command did not check if the domain was
already running before attempting to fetch the XML and extract
the console PTY path. This caused a slightly unhelpful / misleading
error message for the user. The explicit check ensures the user
gets an explicit 'domain is not running' message.
* tools/virsh.c: Validate that state != VIR_DOMAIN_SHUTOFF in
virsh console command
The wrong variable was being passed in with the LXC event callback
resulting in a later deadlock or crash
* src/lxc/lxc_driver.c: Pass 'vm' instead of 'driver' to event
callback
In the scenario where the cgroups were mounted but the
particular group did not exist, and the caller had not
requested auto-creation, the code would fail to return
an error condition. This caused the lxc_controller to
think the cgroup existed, and it then later failed when
attempting to use it
* src/util/cgroup.c: Raise an error if the cgroup path does not
exist
There is a race condition in HAL driver startup where the callback
can get triggered before we have finished startup. This then causes
a deadlock in the driver.
* src/node_device/node_device_hal.c: RElease driver lock before
registering DBus callbacks
If the virDomainDefPtr object has an 'id' of -1, then forcably
set the VIR_DOMAIN_XML_INACTIVE flag to ensure generated XML
does not include any cruft from the previously running guest
such as console PTY path, or VNC port.
* src/conf/domain_conf.c: Set VIR_DOMAIN_XML_INACTIVE if
def->id is -1. Replace checks for def->id == -1 with
check against flags & VIR_DOMAIN_XML_INACTIVE.
The capng_lock() call sets the SECURE_NO_SETUID_FIXUP and SECURE_NOROOT
bits on the process. This prevents the kernel granting capabilities to
processes with an effective UID of 0, or with setuid programs. This is
not actually what we want in the container init process. It should be
allowed to run setuid processes & keep capabilities when root. All that
is required is masking a handful of dangerous capabilities from the
bounding set.
* src/lxc/lxc_container.c: Remove bogus capng_lock() call.
The libvirtd initscript could get confused between the system and
session instances of the daemon. To avoid this it is neccessary
to check the pidfile explicitly.
* daemon/libvirtd.init.in: Always check the pidfile of the system
daemon to avoid confusion with the session daemons
The xenstore database sometimes has stale domain IDs which are not
present in the hypervisor anymore. Filter these out to avoid causing
confusion
* src/xen/xs_internal.c: Filter domain IDs against HV's list
* src/xen/xen_hypervisor.h, src/xen/xen_hypervisor.c: Add new
xenHypervisorHasDomain() method for checking ID validity
Sometimes getaddrinfo returns IPv4 addresses before IPv6 addresses.
IPv6 sockets default to attempting to bind to IPv4 addresses too.
So if the IPv4 address is activated first, then binding to IPv6
will unneccessarily fail.
* daemon/libvirtd.c: Bind to IPv6 and IPv4 addresses separately
When running qemu:///system instance, libvirtd runs as root,
but QEMU may optionally be configured to run non-root. When
then saving a guest to a state file, the file is initially
created as root, and thus QEMU cannot write to it. It is also
missing labelling required to allow access via SELinux.
* src/qemu/qemu_driver.c: Set ownership on save image before
running migrate command in virDomainSave impl. Call out to
security driver to set save image labelling
* src/security/security_driver.h: Add driver APIs for setting
and restoring saved state file labelling
* src/security/security_selinux.c: Implement saved state file
labelling for SELinux
Introduce a number of new APIs to expose some boolean properties
of objects, which cannot otherwise reliably determined, nor are
aspects of the XML configuration.
* virDomainIsActive: Checking virDomainGetID is not reliable
since it is not possible to distinguish between error condition
and inactive domain for ID of -1.
* virDomainIsPersistent: Check whether a persistent config exists
for the domain
* virNetworkIsActive: Check whether the network is active
* virNetworkIsPersistent: Check whether a persistent config exists
for the network
* virStoragePoolIsActive: Check whether the storage pool is active
* virStoragePoolIsPersistent: Check whether a persistent config exists
for the storage pool
* virInterfaceIsActive: Check whether the host interface is active
* virConnectIsSecure: whether the communication channel to the
hypervisor is secure
* virConnectIsEncrypted: whether any network based commnunication
channels are encrypted
NB, a channel can be secure, even if not encrypted, eg if it does
not involve the network, like a UNIX socket, or pipe.
* include/libvirt/libvirt.h.in: Define public API
* src/driver.h: Define internal driver API
* src/libvirt.c: Implement public API entry point
* src/libvirt_public.syms: Export API symbols
* src/esx/esx_driver.c, src/lxc/lxc_driver.c,
src/interface/netcf_driver.c, src/network/bridge_driver.c,
src/opennebula/one_driver.c, src/openvz/openvz_driver.c,
src/phyp/phyp_driver.c, src/qemu/qemu_driver.c,
src/remote/remote_driver.c, src/test/test_driver.c,
src/uml/uml_driver.c, src/vbox/vbox_tmpl.c,
src/xen/xen_driver.c: Stub out driver tables
Some monitor commands may take a very long time to complete. It is
not desirable to block other incoming API calls forever. With this
change, if an existing API call is holding the job lock, additional
API calls will not wait forever. They will time out after a short
period of time, allowing application to retry later.
* include/libvirt/virterror.h, src/util/virterror.c: Add new
VIR_ERR_OPERATION_TIMEOUT error code
* src/qemu/qemu_driver.c: Change to a timed condition variable
wait for acquiring the monitor job lock
QEMU monitor commands may sleep for a prolonged period of time.
If the virDomainObjPtr or qemu driver lock is held this will
needlessly block execution of many other API calls. it also
prevents asynchronous monitor events from being dispatched
while a monitor command is executing, because deadlock will
ensure.
To resolve this, it is neccessary to release all locks while
executing a monitor command. This change introduces a flag
indicating that a monitor job is active, and a condition
variable to synchronize access to this flag. This ensures that
only a single thread can be making a state change or executing
a monitor command at a time, while still allowing other API
calls to be completed without blocking
* src/qemu/qemu_driver.c: Release driver and domain lock when
running monitor commands. Re-add locking to disk passphrase
callback
* src/qemu/THREADS.txt: Document threading rules
Change the QEMU monitor file handle watch to poll for both
read & write events, as well as EOF. All I/O to/from the
QEMU monitor FD is now done in the event callback thread.
When the QEMU driver needs to send a command, it puts the
data to be sent into a qemuMonitorMessagePtr object instance,
queues it for dispatch, and then goes to sleep on a condition
variable. The event thread sends all the data, and then waits
for the reply to arrive, putting the response / error data
back into the qemuMonitorMessagePtr and notifying the condition
variable.
There is a temporary hack in the disk passphrase callback to
avoid acquiring the domain lock. This avoids a deadlock in
the command processing, since the domain lock is still held
when running monitor commands. The next commit will remove
the locking when running commands & thus allow re-introduction
of locking the disk passphrase callback
* src/qemu/qemu_driver.c: Temporarily don't acquire lock in
disk passphrase callback. To be reverted in next commit
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Remove
raw I/O functions, and a generic qemuMonitorSend() for
invoking a command
* src/qemu/qemu_monitor_text.c, src/qemu/qemu_monitor_text.h:
Remove all low level I/O, and use the new qemuMonitorSend()
API. Provide a qemuMonitorTextIOProcess() method for detecting
command/reply/prompt boundaries in the monitor data stream
Add reference counting on the virDomainObjPtr objects. With the
forthcoming asynchronous QEMU monitor, it will be neccessary to
release the lock on virDomainObjPtr while waiting for a monitor
command response. It is neccessary to ensure one thread can't
delete a virDomainObjPtr while another is waiting. By introducing
reference counting threads can make sure objects they are using
are not accidentally deleted while unlocked.
* src/conf/domain_conf.h, src/conf/domain_conf.c: Add
virDomainObjRef/Unref APIs, remove virDomainObjFree
* src/openvz/openvz_conf.c: replace call to virDomainObjFree
with virDomainObjUnref
In preparation of the monitor I/O process becoming fully asynchronous,
it is neccessary to ensure all access to internals of the qemuMonitorPtr
object is protected by a mutex lock.
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add mutex for locking
monitor.
* src/qemu/qemu_driver.c: Add locking around all monitor commands
Change the QEMU driver to not directly invoke the text mode monitor
APIs. Instead add a generic wrapper layer, which will eventually
invoke either the text or JSON protocol code as needed. Pass an
qemuMonitorPtr object into the monitor APIs instead of virDomainObjPtr
to complete the de-coupling of the monitor impl from virDomainObj
data structures
* src/qemu/qemu_conf.h: Remove qemuDomainObjPrivate definition
* src/qemu/qemu_driver.c: Add qemuDomainObjPrivate definition.
Pass qemuMonitorPtr into all monitor APIs instead of the
virDomainObjPtr instance.
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add thin
wrappers for all qemuMonitorXXX command APIs, calling into
qemu_monitor_text.c/h
* src/qemu/qemu_monitor_text.c, src/qemu/qemu_monitor_text.h:
Rename qemuMonitor -> qemuMonitorText & update to accept
qemuMonitorPtr instead of virDomainObjPtr
Decouple the monitor code from the virDomainDefPtr structure
by moving the disk encryption lookup code back into the
qemu_driver.c file. Instead provide a function callback to
the monitor code which can be invoked to retrieve encryption
data as required.
* src/qemu/qemu_driver.c: Add findDomainDiskEncryption,
and findVolumeQcowPassphrase. Pass address of the method
findVolumeQcowPassphrase into qemuMonitorOpen()
* src/qemu/qemu_monitor.c: Associate a disk
encryption function callback with the qemuMonitorPtr
object.
* src/qemu/qemu_monitor_text.c: Remove findDomainDiskEncryption
and findVolumeQcowPassphrase.
Introduce a new qemuDomainObjPrivate object which is used to store
the private QEMU specific data associated with each virDomainObjPtr
instance. This contains a single member, an instance of the new
qemuMonitorPtr object which encapsulates the QEMU monitor state.
The internals of the latter are private to the qemu_monitor* files,
not to be shown to qemu_driver.c
* src/qemu/qemu_conf.h: Definition of qemuDomainObjPrivate.
* src/qemu/qemu_driver.c: Register a functions for creating
and freeing qemuDomainObjPrivate instances with the domain
capabilities. Remove the qemudDispatchVMEvent() watch since
I/O watches are now handled by the monitor code itself. Pass
a new qemuHandleMonitorEOF() callback into qemuMonitorOpen
to allow notification when the monitor quits.
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Introduce
the 'qemuMonitor' object. Temporarily add new APIs
qemuMonitorWrite, qemuMonitorRead, qemuMonitorWaitForInput
to allow text based monitor impl to perform I/O.
* src/qemu/qemu_monitor_text.c: Call APIs for reading/writing
to monitor instead of accessing the file handle directly.
The qemu_driver.c code should not contain any code that interacts
with the QEMU monitor at a low level. A previous commit moved all
the command invocations out. This change moves out the code which
actually opens the monitor device.
* src/qemu/qemu_driver.c: Remove qemudOpenMonitor & methods called
from it.
* src/Makefile.am: Add qemu_monitor.{c,h}
* src/qemu/qemu_monitor.h: Add qemuMonitorOpen()
* src/qemu/qemu_monitor.c: All code for opening the monitor
* src/util/threads-pthread.c: pthreads APIs do not set errno, instead
the return value is the positive errno. Set errno based on the return
value in the wrappers
* src/util/pci.c, src/util/pci.h: Make the pciDeviceList struct
opaque to callers of the API. Add accessor methods for managing
devices in the list
* src/qemu/qemu_driver.c: Update to use APIs instead of directly
accessing pciDeviceList fields
The virStateInitialize() call for starting up stateful drivers
may require that the event loop is running already. This it is
neccessary to start the event loop before this call. At the
same time, network clients must not be processed until afte
virStateInitialize has completed.
The qemudListenUnix() and remoteListenTCP() methods must
therefore not register file handle watches, merely open the
network sockets & listen() on them. This means clients can
connected and are queued, pending completion of initialization
The qemudRunLoop() method is moved into a background thread
that is started early to allow access to the event loop during
driver initialization. The main process thread leader pretty
much does nothing once the daemon is running, merely waits
for the event loop thread to quit
* daemon/libvirtd.c, daemon/libvirtd.h: Move event loop into
a background thread
* daemon/THREADING.txt: Rewrite docs to better reflect reality
The LXC driver was mistakenly returning -1 for lxcStartup()
in scenarios that are not an error. This caused the libvirtd
to quit for unprivileged users. This fixes the return code
of LXC driver, and also adds a "name" field to the virStateDriver
struct and logging to make it easier to find these problems
in the future
* src/driver.h: Add a 'name' field to state driver to allow
easy identification during failures
* src/libvirt.c: Log name of failed driver for virStateInit
failures
* src/lxc/lxc_driver.c: Don't return a failure code for
lxcStartup() if LXC is not available on this host, simply
disable the driver.
* src/network/bridge_driver.c, src/node_device/node_device_devkit.c,
src/node_device/node_device_hal.c, src/opennebula/one_driver.c,
src/qemu/qemu_driver.c, src/remote/remote_driver.c,
src/secret/secret_driver.c, src/storage/storage_driver.c,
src/uml/uml_driver.c, src/xen/xen_driver.c: Fill in name
field in virStateDriver struct
Rename virDomainIsActive to virDomainObjIsActive, and
virInterfaceIsActive to virInterfaceObjIsActive and finally
virNetworkIsActive to virNetworkObjIsActive.
* src/conf/domain_conf.c, src/conf/domain_conf.h,
src/conf/interface_conf.h, src/conf/network_conf.c,
src/conf/network_conf.h, src/lxc/lxc_driver.c,
src/network/bridge_driver.c, src/opennebula/one_driver.c,
src/openvz/openvz_driver.c, src/qemu/qemu_driver.c,
src/test/test_driver.c, src/uml/uml_driver.c: Update for
renamed APIs.
The daemonizing code lets the parent exit almost immediately. This
means that it may think it has successfully started even when
important failures occur like not being able to acquire the PID
file. It also means network sockets are not yet open.
To address this when daemonizing the parent passes an open pipe
file descriptor to the child. The child does its basic initialization
and then writes a status code to the pipe indicating either success,
or failure. This ensures that when daemonizing, the parent does not
exit until the pidfile is acquired & basic network sockets are open.
Initialization of the libvirt drivers is still done asynchronously
since this may take a very long time.
* daemon/libvirtd.c: Force parent to stay around until basic config
file, pidfile & network socket init is completed
* daemon/libvirtd.c: Introduce a daemonSetupSignals() method
and put all signal handling code there
* daemon/libvirtd.h: Add sigread/sigwrite to qemud_server type
The libvirt default error handling callback will print all errors
to stderr. The libvirtd default logging callback will do the same.
Set a no-op error handling callback in libvirtd to prevent this
duplication
* daemon/libvirtd.c: Register a no-op error handling function
virInitialize must be the first libvirt function called to ensure
threads, error handling & random number generator are all setup.
Move UNIX socket directory permissions change to place of use
* daemon/libvirtd.c: Change qemudNetworkInit() so that it doesn't try
to free its argument, leaving the caller todo cleanup as is normal
practice. Add missing policykit cleanup to qemudCleanup, and remove
server watch if set. Remove duplicated call to listen() on TCP sockets
Nearly all of the methods in src/util/util.h have error codes that
must be checked by the caller to correct detect & report failure.
Add ATTRIBUTE_RETURN_CHECK to ensure compile time validation of
this
* daemon/libvirtd.c: Add explicit check on return value of virAsprintf
* src/conf/domain_conf.c: Add missing check on virParseMacAddr return
value status & report error
* src/network/bridge_driver.c: Add missing OOM check on virAsprintf
and report error
* src/qemu/qemu_conf.c: Add missing check on virParseMacAddr return
value status & report error
* src/security/security_selinux.c: Remove call to virRandomInitialize
that's done in libvirt.c already
* src/storage/storage_backend_logical.c: Add check & log on virRun
return status
* src/util/util.c: Add missing checks on virAsprintf/Run status
* src/util/util.h: Annotate all methods with ATTRIBUTE_RETURN_CHECK
if they return an error status code
* src/vbox/vbox_tmpl.c: Add missing check on virParseMacAddr
* src/xen/xm_internal.c: Add missing checks on virAsprintf
* tests/qemuargv2xmltest.c: Remove bogus call to virRandomInitialize()
The virDomainObjPtr object stores state about a running domain.
This object is shared across all drivers so it is not appropriate
to include driver specific state here. This patch adds the ability
to request a blob of private data per domain object instance. The
driver must provide a allocator & deallocator for this purpose
THis patch abuses the virCapabilitiesPtr structure for storing the
allocator/deallocator callbacks, since it is already being abused
for other internal things relating to parsing. This should be moved
out into a separate object at some point.
* src/conf/capabilities.h: Add privateDataAllocFunc and
privateDataFreeFunc fields
* src/conf/domain_conf.c: Invoke the driver allocators / deallocators
when creating/freeing virDomainObjPtr instances.
* src/conf/domain_conf.h: Pass virCapsPtr into virDomainAssignDef
to allow access to the driver specific allocator function
* src/lxc/lxc_driver.c, src/opennebula/one_driver.c,
src/openvz/openvz_driver.c, src/qemu/qemu_driver.c,
src/test/test_driver.c, src/uml/uml_driver.c: Update for
change in virDomainAssignDef contract
The current virDomainObjListPtr object stores domain objects in
an array. This means that to find a particular objects requires
O(n) time, and more critically acquiring O(n) mutex locks.
The new impl replaces the array with a virHashTable, keyed off
UUID. Finding a object based on UUID is now O(1) time, and only
requires a single mutex lock. Finding by name/id is unchanged
in complexity.
In changing this, all code which iterates over the array had
to be updated to use a hash table iterator function callback.
Several of the functions which were identically duplicating
across all drivers were pulled into domain_conf.c
* src/conf/domain_conf.h, src/conf/domain_conf.c: Change
virDomainObjListPtr to use virHashTable. Add a initializer
method virDomainObjListInit, and rename virDomainObjListFree
to virDomainObjListDeinit, since its not actually freeing
the container, only its contents. Also add some convenient
methods virDomainObjListGetInactiveNames,
virDomainObjListGetActiveIDs and virDomainObjListNumOfDomains
which can be used to implement the correspondingly named
public API entry points in drivers
* src/libvirt_private.syms: Export new methods from domain_conf.h
* src/lxc/lxc_driver.c, src/opennebula/one_driver.c,
src/openvz/openvz_conf.c, src/openvz/openvz_driver.c,
src/qemu/qemu_driver.c, src/test/test_driver.c,
src/uml/uml_driver.c, src/vbox/vbox_tmpl.c: Update all code
to deal with hash tables instead of arrays for domains
Most of the hash iterators need to modify either payload of
data args. The const annotation prevents this.
* src/util/hash.h, src/util/hash.c: Remove const-ness from
virHashForEach/Iterator
* src/xen/xm_internal.c: Remove bogus casts
The fread_file_lim() function uses fread() but never handles
EINTR results, causing unexpected failures when reading QEMU
help arg info. It was unneccessarily using FILE * instead
of plain UNIX file handles, which prevented use of saferead()
* src/util/util.c: Switch fread_file_lim over to use saferead
instead of fread, remove FILE * use, and rename
The logic for running the decompression programs was broken in
commit f238709304, so that for
non-raw formats the decompression program was never run, and
for raw formats, it tried to exec an argv[] with initial NULL
in the program name.
* src/qemu/qemu_driver.c: Fix logic in runing decompression program
The existing python demo for domain events does not fully
implement the event loop contract. This makes the code useless
for real world applications. This change re-writes the demo so
that it has a full event loop implementation which is suitable
for application usage & better demonstrates integration
* examples/domain-events/events-python/event-test.py: Rewrite
to include a real world usable event loop implementation
Removes some auto-generated files still under version control.
It also moves the rule for generating NEWS into the Makefile.am
that's in the same directory as the output file to avoid confusion
* docs/libvirt-api.xml, docs/libvirt-refs.xml, NEWS: Remove
auto-generated files from source control
* Makefile.am: Add rule for generating NEWS file
* docs/Makefile.am: Remove rule for generating NEWS file
Introduces several new public API options for migration
- VIR_MIGRATE_PEER2PEER: With this flag the client only
invokes the virDomainMigratePerform method, expecting
the source host driver to do whatever is required to
complete the entire migration process.
- VIR_MIGRATE_TUNNELLED: With this flag the actual data
for migration will be tunnelled over the libvirtd RPC
channel. This requires that VIR_MIGRATE_PEER2PEER is
also set.
- virDomainMigrateToURI: This is variant of the existing
virDomainMigrate method which does not require any
virConnectPtr for the destination host. Given suitable
driver support, this allows for all the same modes as
virDomainMigrate()
The URI for VIR_MIGRATE_PEER2PEER must be a valid libvirt
URI. For non-p2p migration a hypervisor specific migration
URI is used.
virDomainMigrateToURI without a PEER2PEER flag is only
support for Xen currently, and it involves XenD talking
directly to XenD, no libvirtd involved at all.
* include/libvirt/libvirt.h.in: Add VIR_MIGRATE_PEER2PEER
flag for migration
* src/libvirt_internal.h: Add feature flags for peer to
peer migration (VIR_FEATURE_MIGRATE_P2P) and direct
migration (VIR_MIGRATE_PEER2PEER mode)
* src/libvirt.c: Implement support for VIR_MIGRATE_PEER2PEER
and virDomainMigrateToURI APIs.
* src/xen/xen_driver.c: Advertise support for DIRECT migration
* src/xen/xend_internal.c: Add TODO item for p2p migration
* src/libvirt_public.syms: Export virDomainMigrateToURI
method
* src/qemu/qemu_driver.c: Add support for PEER2PEER and
migration, and adapt TUNNELLED migration.
* tools/virsh.c: Add --p2p and --direct args and use the
new virDomainMigrateToURI method where possible.
Re-arrange the doTunnelMigrate method putting all non-QEMU local
state setup steps first. This maximises chances of success before
then starting destination QEMU for receiving incoming migration.
Altogether this can reduce the number of goto cleanup labels to
something more managable.
* qemu/qemu_driver.c: Re-order steps in doTunnelMigrate
Simplify the doTunnelMigrate code by pulling out the code for
sending all tunnelled data into separate helper
* qemu/qemu_driver.c: introduce doTunnelSendAll() method
Simplify the doTunnelMigrate() method by pulling out the code
which opens/closes the virConnectPtr object into a parent
method
* qemu/qemu_driver.c: Add doPeer2PeerMigrate which then calls
doTunnelMigrate with dconn & dom_xml
virStreamAbort is needed when the caller wishes to terminate
the stream early, not when virStreamSend fails.
* qemu/qemu_driver.c: Fix calling of virStreamAbort during
tunnelled migration
The code for tunnelled migration was added in a dedicated method,
but the native migration code is still inline in the top level
qemudDomainMigratePerform() API. Move the native code out into
a dedicated method too to make things more maintainable.
* src/qemu/qemu_driver.c: Pull code for performing a native
QEMU migration out into separate method
The code for tunnelled migration wierdly required the app to pass
a NULL 'dconn' parameter, only to have to use virConnectOpen
itself shortly thereafter to get a 'dconn' object. Remove this
bogus check & require the app to always pas 'dconn' as before
* src/libvirt.c: Require 'dconn' for virDomainMigrate calls again
and remove call to virConnectOpen
Since virMigratePrepareTunnel() is used for migration over the
native libvirt connection, there is never any need to pass the
target URI to this method.
* daemon/remote.c, src/driver.h, src/libvirt.c, src/libvirt_internal.h,
src/qemu/qemu_driver.c, src/remote/remote_driver.c,
src/remote/remote_protocol.c, src/remote/remote_protocol.h,
src/remote/remote_protocol.x: Remove 'uri_in' parameter from
virMigratePrepareTunnel() method
Move the VIR_DRV_FEATURE* constants into libvirt_internal.h
since these flags are indicating whether APIs in the
libvirt_internal.h file are supported by a driver
* src/driver.h: Remove VIR_DRV_FEATURE* constants
* src/libvirt_internal.h: Add VIR_DRV_FEATURE* constants, using
an enum instead of #define
* src/internal.h: pull in libvirt_internal.h
The devhelp/ directory files depend on libvirt-api.xml being
uptodate, but automake always processes SUBDIRS before the
current directory. So devhelp would be built and then the
libvirt-api.xml re-build, invalidating the devhelp data again.
To fix this all the rules for devhelp are moved directly
into the docs/Makefile.am allowing make to see the global
dependancy chain and thus build things in the correct order
* docs/Makefile.am: Add rules for devhelp rebuild
* docs/devhelp/Makefile.am: Remove devhelp rebuild
* configure.in: Remove docs/devhelp/Makefile.am
The code which updated the message length after writing the
payload wrote the updated length word in the wrong place since
the XDR object was given a buffer pointing to the start of the
header payload, rather than message start.
* daemon/remote.c: Fix updating of event message length so that
we actually send the payload, not just the header
When using VNC for graphics + keyboard + mouse, we shouldn't
then use the host OS for audio. Audio should go back over
VNC.
When using SDL for graphics, we should use the host OS for
audio since that's where the display is. We need to allow
certain QEMU env variables to be passed through to guest
too to allow choice of QEMU audio backend.
* qemud/libvirtd.sysconf: Mention QEMU/SDL audio env vars
* src/qemu_conf.c: Passthrough QEMU/SDL audio env for SDL display,
disable host audio for VNC display
* daemon/dispatch.c: Set streamTX flag on outgoing data packets
* daemon/qemud.h: Add streamTX flag to track outgoing data
* daemon/qemud.c: Re-enable further TX when outgoing data packet
has been fully sent.
* daemon/stream.h, daemon/stream.c: Add method for enabling TX.
Support reading from streams and transmitting data out to client
Defines the extensions to the remote protocol for generic
data streams. Adds a bunch of helper code to the libvirtd
daemon for working with data streams.
* daemon/Makefile.am: Add stream.c/stream.h to build
* daemon/stream.c, qemud/stream.h: Generic helper functions for
creating new streams, associating streams with clients, finding
existing streams for a client and removing/deleting streams.
* src/remote/remote_protocol.x: Add a new 'REMOTE_STREAM' constant
for the 'enum remote_message_type' for encoding stream data
in wire messages. Add a new 'REMOTE_CONTINUE' constant to
'enum remote_message_status' to indicate further data stream
messsages are expected to follow. Document how the
remote_message_header is used to encode data streams
* src/remote/remote_protocol.h: Regenerate
* daemon/dispatch.c: Remove assumption that a error message
sent to client is always type=REMOTE_REPLY. It may now
also be type=REMOTE_STREAM. Add convenient method for
sending outgoing stream data packets. Log and ignore
non-filtered incoming stream packets. Add a method for
serializing a stream error message
* daemon/dispatch.h: Add API for serializing stream errors
and sending stream data packets
* daemon/qemud.h: Add struct qemud_client_stream for tracking
active data streams for clients. Tweak filter function
operation so that it accepts a client object too.
* daemon/qemud.c: Refactor code for free'ing message objects
which have been fully transmitted into separate method.
Release all active streams when client shuts down. Change
filter function to be responsible for queueing the message
* include/libvirt/libvirt.h.in: Public API contract for
virStreamPtr object
* src/libvirt_public.syms: Export data stream APIs
* src/libvirt_private.syms: Export internal helper APIs
* src/libvirt.c: Data stream API driver dispatch
* src/datatypes.h, src/datatypes.c: Internal helpers for virStreamPtr
object
* src/driver.h: Define internal driver API for streams
* .x-sc_avoid_write: Ignore src/libvirt.c because it trips
up on comments including write()
* python/Makefile.am: Add libvirt-override-virStream.py
* python/generator.py: Add rules for virStreamPtr class
* python/typewrappers.h, python/typewrappers.c: Wrapper
for virStreamPtr
* docs/libvirt-api.xml, docs/libvirt-refs.xml: Regenerate
with new APIs
* src/qemu/qemu_monitor_text.c: Always print command and reply
in qemuMonitorCommandWithHandler. Print all args in each monitor
command API & remove redundant relpy printing
* src/qemu/qemu_monitor.h, src/qemu/qemu_monitor.c: Add new
qemuMonitorRemoveHostNetwork() command for removing host
networks
* src/qemu/qemu_driver.c: Convert NIC hotplug methods over
to use qemuMonitorRemoveHostNetwork()
* src/qemu/qemu_conf.h, src/qemu/qemu_conf.c: Remove prefix arg
from qemuBuildHostNetStr which is no longer required
* src/qemu/qemu_driver.c: Refactor to use qemuMonitorAddHostNetwork()
API for adding host network
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorAddHostNetwork() method for adding host networks
* src/qemu/qemu_conf.c: Remove separator from qemuBuildNicStr()
args, and remove hardcoded 'nic' prefix. Leave it upto callers
instead
* src/qemu/qemu_driver.c: Switch over to using the new
qemuMonitorAddPCINetwork() method for NIC hotplug
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorAddPCINetwork API for PCI network device hotplug
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorCloseFileHandle and qemuMonitorSendFileHandle
APIs for processing file handles
* src/qemu/qemu_driver.c: Convert NIC hotplug method over to
use qemuMonitorCloseFileHandle and qemuMonitorSendFileHandle
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
API qemuMonitorAddPCIDisk()
* src/qemu/qemu_driver.c: Convert over to using the new
qemuMonitorAddPCIDisk() method, and remove now obsolete
qemudEscape() method
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new API
qemuMonitorRemovePCIDevice() for removing PCI device
* src/qemu/qemu_driver.c: Convert all places removing PCI devices
over to new qemuMonitorRemovePCIDevice() API
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
API qemuMonitorAddPCIHostDevice()
* src/qemu/qemu_driver.c: Switch to using qemuMonitorAddPCIHostDevice()
for PCI host device hotplug
One API adds an exact device based on bus+dev, the other adds
any device matching vendor+product
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorAddUSBDeviceExact() and qemuMonitorAddUSBDeviceMatch()
commands.
* src/qemu/qemu_driver.c: Switch over to using the new
qemuMonitorAddUSBDeviceExact() and qemuMonitorAddUSBDeviceMatch()
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorAddUSBDisk() API
* src/qemu/qemu_driver.c: Switch USB disk hotplug to the new
src/qemu/qemu_driver.c API.
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorMigrateToCommand() API
* src/qemu/qemu_driver.c: Switch over to using the
qemuMonitorMigrateToCommand() API for core dumps and save
to file APIs
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new API
qemuMonitorMigrateToHost() for doing TCP migration
* src/qemu/qemu_driver.c: Convert to use qemuMonitorMigrateToHost().
Also handle proper URIs (tcp:// as well as tcp:)
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorGetMigrationStatus() command.
* src/qemu/qemu_driver.c: Use new qemuMonitorGetMigrationStatus()
command to check completion status.
* src/qemu/qemu_driver.c: Use new qemuMonitorSetMigrationSpeed()
API during migration
* src/qemu/qemu_monitor.h, src/qemu/qemu_monitor.c: Add new
qemuMonitorSetMigrationSpeed() API
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add a new
qemuMonitorGetBlockStatsInfo() command
* src/qemu/qemu_driver.c: Remove directly use of blockstats in
favour of calling qemuMonitorGetBlockStatsInfo()
* src/qemu/qemu_monitor.h, src/qemu/qemu_monitor.c: Add new APIs
qemuMonitorSaveVirtualMemory() and qemuMonitorSavePhysicalMemory()
* src/qemu/qemu_driver.c: Use the new qemuMonitorSaveVirtualMemory()
and qemuMonitorSavePhysicalMemory() APIs
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new APis
qemuMonitorChangeMedia and qemuMonitorEjectMedia. Pull in code
for qemudEscape
* src/qemu/qemu_driver.c: Remove code that directly issues 'eject'
and 'change' commands in favour of API calls.
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add new
qemuMonitorSetBalloon() based on existing code in
qemudDomainSetMemoryBalloon
* src/qemu/qemu_driver.c: Remove use of qemudDomainSetMemoryBalloon()
in favour of qemuMonitorSetBalloon(). Fix error code when balloon
is not supported
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Pull old
qemudDomainGetMemoryBalloon() code into a new method called
qemuMonitorGetBalloonInfo()
* src/qemu/qemu_driver.c: Update to call qemuMonitorGetBalloonInfo()
and remove qemudDomainGetMemoryBalloon().
* src/qemu/qemu_driver.c: Remove use of 'system_powerdown'
* src/qemu/qemu_monitor.h, src/qemu/qemu_monitor.c: Add a new
qemuMonitorSystemPowerdown() api call
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add a new
qemuMonitorStopCPUs() API
* src/qemu/qemu_driver.c: Replace direct monitor commands for 'stop'
with qemuMonitorStopCPUs()
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Rename
Rename qemudMonitorSendCont to qemuMonitorStartCPUs
* src/qemu/qemu_driver.c: Update callers for new name
* src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h: Add a
new qemuMonitorSetVNCPassword() API
* src/qemu/qemu_driver.c: Refactor qemudInitPasswords to
call qemuMonitorSetVNCPassword()
* src/qemu/qemu_monitor.h, src/qemu/qemu_monitor.c: Add a new
qemuMonitorGetCPUInfo() command
* src/qemu/qemu_driver.c: Refactor qemudDetectVcpuPIDs to
use qemuMonitorGetCPUInfo()
Pull out all the QEMU monitor interaction code to a separate
file. This will make life easier when we need to drop in a
new implementation for the forthcoming QMP machine friendly
monitor support.
Next step is to add formal APIs for each monitor command,
and remove direct commands for sending/receiving generic
data.
* src/Makefile.am: Add qemu_monitor.c to build
* src/qemu/qemu_driver.c: Remove code for monitor interaction
* src/qemu/qemu_monitor_text.c, src/qemu/qemu_monitor_text.h: New
file for monitor interaction
* po/POTFILES.in: Add src/qemu/qemu_monitor_text.c
The python method help docs are copied across from the C
funtion comments, but in the process all line breaks and
indentation was being lost. This made the resulting text
and code examples completely unreadable. Both the API
doc extractor and the python generator were destroying
whitespace & this fixes them to preserve it exactly.
* docs/apibuild.py: Preserve all whitespace when extracting
function comments. Print function comment inside a <
Daniel P. Berrange