Commands to manage domain snapshot are moved from virsh.c to
virsh-snapshot.c.
* virsh.c: Remove domain snapshot commands.
* virsh-snapshot.c: New file, filled with domain snapshot commands.
* po/POTFILES.in: Add virsh-snapshot.c
* cfg.mk: Skip strcase and config.h including checking for
virsh-snapshot.c
Commands to manage secret are moved from virsh.c to virsh-secret.c,
with a few helpers for secret command use.
* virsh.c: Remove secret commands and a few helpers.
(vshCommandOptSecret, and vshCommandOptSecretBy)
* virsh-secret.c: New file, filled with secret commands and its helpers.
* po/POTFILES.in: Add virsh-secret.c
* cfg.mk: Skip to check config.h including for virsh-secret.c
Commands to manage network filter are moved from virsh.c to virsh-nwfilter.c,
with a few helpers for network filter command use.
* virsh.c: Remove network filter commands and a few helpers.
(vshCommandOptNWFilter, and vshCommandOptNWFilterBy)
* virsh-nwfilter.c: New file, filled with network filter commands and its helpers.
* po/POTFILES.in: Add virsh-nwfilter.c
* cfg.mk: Skip to check config.h including for virsh-nwfilter.c
Commands to manage host interface are moved from virsh.c to
virsh-interface.c, with a few helpers for interface command use.
* virsh.c: Remove interface commands and a few helpers.
(vshCommandOptInterface, vshCommandOptInterfaceBy)
* virsh-interface.c: New file, filled with interface commands and
its helpers.
* cfg.mk: Skip to check config.h including for virsh-interface.c
* po/POTFILES.in: Add virsh-interface.c
Commands to manage network are moved from virsh.c to virsh-network.c,
with a few helpers for network command use.
* virsh.c: Remove network commands and a few helpers.
* virsh-network.c: New file, filled with network commands and its
helpers.
* po/POTFILES.in: Add virsh-network.c
* cfg.mk: Skip to check config.h including for virsh-network.c
This splits commands of storage pool group into virsh-pool.c,
The helpers not for common use are moved too. Standard copyright
is added for the new file.
* tools/virsh.c:
Remove commands for storage storage pool and a few helpers.
(vshCommandOptVol, vshCommandOptVolBy).
* tools/virsh-pool.c:
New file, filled with commands of storage pool group and its
helpers.
* po/POTFILES.in:
Add virsh-pool.c
* cfg.mk:
Skip to check config.h including for virsh-pool.c
This splits commands of storage volume group into virsh-volume.c,
The helpers not for common use are moved too. Standard copyright
is added for the new file.
* tools/virsh.c:
Remove commands for storage storage volume and a few helpers.
(vshCommandOptVol, vshCommandOptVolBy).
* tools/virsh-volume.c:
New file, filled with commands of storage volume group and its
helpers.
* po/POTFILES.in:
Add virsh-volume.c
* cfg.mk:
Skip to check config.h including for virsh-volume.c
This splits commands to manage domain into virsh-domain.c,The helpers
not for common use are moved into them too. Standard copyright is added
for the new file.
* tools/virsh.c:
- Remove commands for domain group, and one helper
(vshDomainVcpuStateToString)
- vshStreamSink is moved before commands's definition for it's
also used by commands not of domain group, such as volUpload.
* tools/virsh-domain.c:
- New file, commands for domain group and the one helper are
moved into it.
* po/POTFILES.in:
- Add virsh-domain.c
* cfg.mk:
- Skip to check config.h including for virsh-domain.c
This splits commands commands to monitor domain status into
virsh-domain-monitor.c. The helpers not for common use are moved too.
Standard copyright is added.
* tools/virsh.c:
- Remove commands for domain monitoring group and a few helpers (
vshDomainIOErrorToString, vshGetDomainDescription,
vshDomainControlStateToString, vshDomainStateToString) not for
common use.
- Remove (incldue "intprops.h").
* tools/virsh-domain-monitor.c:
- New file, filled with commands of domain monitor group.
- Add "intprops.h".
* cfg.mk:
- Skip strcase checking for virsh-domain-monitor.c
- Skip to check config.h including for virsh-domain-monitor.c
* po/POTFILES.in
- Add virsh-domain-monitor.c
The copyright dates in the manpages haven't been updated in awhile.
Also, when pod2man converts a pod file into a manpage, it will only
remove the extension from the filename if it is ".pod". Some of the
libvirt pod files are named *.pod.in, and that filename is placed
unchanged into the manpage. This patch uses pod2man's --name option to
fix that.
Believe it or not, there's even a BZ for this:
https://bugzilla.redhat.com/show_bug.cgi?id=819364
Per the FSF address could be changed from time to time, and GNU
recommends the following now: (http://www.gnu.org/licenses/gpl-howto.html)
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
This patch removes the explicit FSF address, and uses above instead
(of course, with inserting 'Lesser' before 'General').
Except a bunch of files for security driver, all others are changed
automatically, the copyright for securify files are not complete,
that's why to do it manually:
src/security/security_selinux.h
src/security/security_driver.h
src/security/security_selinux.c
src/security/security_apparmor.h
src/security/security_apparmor.c
src/security/security_driver.c
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>
Introduce new members in the virMacAddr 'class'
- virMacAddrSet: set virMacAddr from a virMacAddr
- virMacAddrSetRaw: setting virMacAddr from raw 6 byte MAC address buffer
- virMacAddrGetRaw: writing virMacAddr into raw 6 byte MAC address buffer
- virMacAddrCmp: comparing two virMacAddr
- virMacAddrCmpRaw: comparing a virMacAddr with a raw 6 byte MAC address buffer
then replace raw MAC addresses by replacing
- 'unsigned char *' with virMacAddrPtr
- 'unsigned char ... [VIR_MAC_BUFLEN]' with virMacAddr
and introduce usage of above functions where necessary.
Fix for a minor issue:
the sleep(1) statement was called twice,
effectively doubling the elapsed time
execution "virsh nodecpustats --percent".
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
When --direct is used when migrating a domain running on a hypervisor
that does not support direct migration (such as QEMU), the caller would
get the following error message:
this function is not supported by the connection driver:
virDomainMigrateToURI2
which is a complete nonsense since qemu driver implements
virDomainMigrateToURI2. This patch would emit a more sensible error in
this case:
Requested operation is not valid: direct migration is not supported
by the connection driver
Instead of changing the existed virFileMakePath to accept mode
argument and modifying a pile of its uses, this patch introduces
virFileMakePathWithMode, and use it instead of mkdir() to create
the readline history dir.
In vshSnapshotListCollect() vshCalloc was called with swapped nmemb and
size argument. This caused division by zero in xalloc_oversized as the
macro doesn't expect size to be zero.
Fixed up virsh -V output by removing invalid WITH_PROXY & WITH_ONE
checks, adding several missing checks, and fixing the DTrace check.
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
v2:
- Refactored to use virBuffer
- Refactored to use virXPath wrappers
- Added support for tls-port and password for SPICE
- Added optional flag to disable SPICE password to the URI
- Added support for RDP
- Fixed code reviews
Add a new 'domdisplay' command that provides a URI for VNC, SPICE and
RDP connections. Presently the 'vncdisplay' command provides you with
the port info that QEMU is listening on but there is no counterpart for
SPICE and RDP. Additionally this provides you with the bind address as
specified in the XML, which the existing 'vncdisplay' lacks. For SPICE
connections it supports secure and unsecure channels and optionally
providing the password for the SPICE channel.
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Storage is one of the last domains in libvirt where we don't fully
utilize inactive and live XML. Okay, it might be because we don't
have support for that. So implement such support. However, we need
to fallback when talking to old daemon which doesn't support this
new flag called VIR_STORAGE_XML_INACTIVE.
The vshPrintRaw function is not used on Win32, and neither
is the 'msg' parameter of vshAskReedit. Change the nesting
of #ifdef WIN32 conditionals to address this
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Update the vncdisplay command to use the virXPath wrappers as well as
check if the domain is up rather than using the port set to -1 to mean
the domain is not up.
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
This patch adds a check for the count of processors the user requests
for the guest machine so that invalid values produce a more helpful
error message.
This patch makes use of the newly added api virConnectListAllDomains()
to list domains in virsh.
Virsh now represents lists of domains using an internal structure
vshDomainList. This structure contains the virDomainPtr list as provided
by virConnectListAllDomains() and the count of domains in the list.
For backwards compatibility, the function vshDomainListCollect was added
that tries to enumerate the domains using the new API and if the API is
not supported falls back to the older approach with the two list
functions. The helper function also simulates filtering by all
currently supported flags added with virConnectListAllDomains().
This patch also cleans up the "list" command handler to use the new
helpers and adds new command line flags to make use of filtering.
Previously, to get the name of all snapshots with children, it was
necessary to get the name of all snapshots and then remove the
name of leaf snapshots. This is racy, and somewhat inefficient
compared to planned API additions. We can emulate --no-metadata on
0.9.5-0.9.12, but for now, there is no emulation of --no-leaves.
* tools/virsh.c (cmdSnapshotList): Add new options --no-leaves and
--no-metadata.
(vshSnapshotList): Emulate where possible.
* tools/virsh.pod (snapshot-list): Document them.
Append '(MAC Address)' after the help string of domiftune virsh
command as it takes the same type of argument as domif-{get,set}link
which have it specified.
as we are missing:
attach-disk: --type can accept 'lun' too, not just cdrom or floppy.
attach-disk: --target specify logical device name, not path
attach-interface: --target silently drops strings with vnet* prefix
Operating on a list of snapshot objects looks so much simpler.
In particular, since the helper function already trimmed out
irrelevant entries, we no longer have quite so many special cases
on finding the first snapshot to operate on. Also, vshTreePrint
no longer has a generic callback struct; both clients now pass
something different according to their own needs.
* tools/virsh.c (cmdSnapshotList): Use previous patches.
(vshTreeArrayLookup): Rename...
(vshNodeListLookup): ...now that it only has one client.
(cmdNodeListDevices): Adjust caller.
This patch is based on the fallback code out of cmdSnapshotList,
with tweaks to keep the snapshot objects around rather than just
their name, and to remove unwanted elements before returning.
It looks forward to a future patch when we add a way to list all
snapshot objects at once, and the next patch will simplify
cmdSnapshotList to take advantage of this factorization.
* tools/virsh.c (vshSnapshotList, vshSnapshotListFree): New functions.
Detected by valgrind:
==16217== 1 errors in context 1 of 12:
==16217== Invalid read of size 1
==16217== at 0x4A07804: __GI_strlen (mc_replace_strmem.c:284)
==16217== by 0x3019F167F6: xdr_string (in /lib64/libc-2.12.so)
==16217== by 0x3033709E8D: xdr_remote_nonnull_string (remote_protocol.c:31)
==16217== by 0x303370E5CB: xdr_remote_domain_update_device_flags_args (remote_protocol.c:2028)
==16217== by 0x30337197D1: virNetMessageEncodePayload (virnetmessage.c:341)
==16217== by 0x30337135E1: virNetClientProgramCall (virnetclientprogram.c:327)
==16217== by 0x30336F1EFD: callWithFD (remote_driver.c:4586)
==16217== by 0x30336F1F7B: call (remote_driver.c:4607)
==16217== by 0x30336F42F2: remoteDomainUpdateDeviceFlags (remote_client_bodies.h:2865)
==16217== by 0x30336D46E5: virDomainUpdateDeviceFlags (libvirt.c:9457)
==16217== by 0x41AEE8: cmdChangeMedia (virsh.c:15249)
==16217== by 0x413CB4: vshCommandRun (virsh.c:18669)
==16217== Address 0x4ec5e25 is 0 bytes after a block of size 293 alloc'd
==16217== at 0x4A04A28: calloc (vg_replace_malloc.c:467)
==16217== by 0x303364F1DB: virAllocN (memory.c:129)
==16217== by 0x41A844: vshPrepareDiskXML (virsh.c:15043)
==16217== by 0x41AECC: cmdChangeMedia (virsh.c:15246)
==16217== by 0x413CB4: vshCommandRun (virsh.c:18669)
==16217== by 0x423973: main (virsh.c:20261)
There is a little easter egg in virsh: one can easily clone
an object (domain, network, ...). Just 'virsh edit' change the name
and remove <uuid>. And then, in the end when reporting success
the new name was printed out.
However, with recent edit rewrite we lost the final part and are
still printing the original name out.
When printing reedit options we make stdin raw. However,
this results in stdout being raw as well. Therefore we need
to return carriage when doing new line. Unfortunately,
'\r' cannot be part of internationalized messages hence
we must move them to formatting string which then in turn
become huge and disarranged. To solve this, a new function
is introduced which takes variable string arguments and
prepend each with "\r\n" just before printing.
The attach-disk command used with parameter --cache created an invalid
XML snippet as the beginning of the <driver> element was not printed
when used solely with --cache and no other attribute to driver.
commit 52d064f42d added
VIR_NETWORK_XML_INACTIVE in order to allow suppressing the
auto-generated list of VFs in network definitions, and a --inactive
flag to virsh net-dumpxml to take advantage of the flag. However, it
missed out on two opportunities:
1) Use INACTIVE to get the current config of the network as it
exists on disk, rather than the currently active config.
2) Add INACTIVE to the flags used for the virsh net-edit command, so
that it won't include the forward-pool interfaces that were
autogenerated, and so that a re-edit of the network prior to
restarting it will show any other edits made since the last restart
of the network. (prior to this patch, if you edited a network a 2nd
time without restarting, all of the previous edits would magically
disappear).
In order to fit with the new #define-based generic edit function in
virsh.c, a new function vshNetworkGetXMLDesc() was added. This
function first tries to call virNetworkGetXMLDesc with the INACTIVE
flag added, then retries without if the first attempt fails (in the
manner expected when the server doesn't support it).
Expose the recent API additions in virsh. Borrows ideas from 'dominfo'
for the general type of information to display.
Output looks like:
$ tools/virsh snapshot-info fedora-local tmp
Name: tmp
Domain: fedora-local
Current: no
State: disk-snapshot
Parent: -
Children: 1
Descendants: 2
Metadata: yes
possibly with fewer lines when talking to older servers.
* tools/virsh.c (cmdSnapshotInfo): New command.
* tools/virsh.pod (snapshot-info): Document it.
Requiring the user to pass in parallel arrays of names and parents
is annoying; it means that you can't qsort one of the arrays without
invalidating the ordering of the other. By refactoring this function
to use callbacks, we isolate the layout to be independent of the
printing, and a future patch can exploit that to improve layout.
* tools/virsh.c (vshTreePrintInternal): Use callbacks rather than
requiring a char** array.
(vshTreeArrayLookup): New helper function.
(vshTreePrint, cmdNodeListDevices, cmdSnapshotList): Update callers.
I am not a fan of fixed-width buffers. All it takes is a
linear chain of more than 100 snapshots to mess up 'virsh
snapshot-list --tree'. Now that virBuffer is more powerful,
we might as well exploit its power.
* tools/virsh.c (cmdNodeListDevicesPrint): Simplify to use a
virBuffer instead of fixed-width prefix, factor guts, and rename...
(vshTreePrint, vshTreePrintInternal): ...along with new helper.
(cmdNodeListDevices, cmdSnapshotList): Update callers.
Commits 51082301, 16d7b39, and 521cc447 introduced support for
'virsh snapshot-list --from' when talking to a server older than
0.9.5, but broke support for plain 'virsh snapshot-list' for the
same old server in the process. Because the code is not properly
gated, we end up with a SIGSEGV during a strcmp with a NULL argument.
* tools/virsh.c (cmdSnapshotList): Don't waste time on fallbacks
when --from is not present.
If you compile without NLS support, where _() is a no-op macro,
then we end up passing a string literal to a char*, provoking:
In file included from virsh.c:3639:0:
virsh-edit.c: In function ‘cmdSaveImageEdit’:
virsh-edit.c:97:13: error: assignment discards ‘const’ qualifier from pointer target type [-Werror]
virsh-edit.c:106:13: error: assignment discards ‘const’ qualifier from pointer target type [-Werror]
* tools/virsh-edit.c: Be const-safe.
If users *-edit but make a mistake in XML all changes are
permanently lost. However, if virsh is not running within
a script we can ask user if he wants to re-edit the file
and correct the mistakes.
Currently, we either generate some cmd*Edit commands (cmdPoolEdit
and cmdNetworkEdit) via sed script or copy the body of cmdEdit
(e.g. cmdInterfaceEdit, cmdNWFilterEdit, etc.). This fact makes
it harder to implement any new feature to our editing system.
Therefore switch to new implementation - define macros to:
- dump XML (EDIT_GET_XML)
- take an action if XML wasn't changed,
usually just vshPrint() (EDIT_NOT_CHANGED)
- define new object (EDIT_DEFINE) - the edited XML is in @doc_edited
- free object defined by EDIT_DEFINE (EDIT_FREE)
and #include "virsh-edit.c"
strncpy is generally evil - it runs the risk of missing NUL
termination, and more often than not wastes time zeroing way
more bytes than strictly necessary. We've avoided this evil
in our virStrncpy wrapper, except for places where we forgot
to use the wrapper; meanwhile, we have also added an even
higher layer wrapper for setting virTypedParameter values.
* tools/virsh.c (cmdMemtune, cmdBlkdeviotune): Use modern API.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_strncpy): Tighten.
Remove the uid param from virGetUserConfigDirectory,
virGetUserCacheDirectory, virGetUserRuntimeDirectory,
and virGetUserDirectory
These functions were universally called with the
results of getuid() or geteuid(). To make it practical
to port to Win32, remove the uid parameter and hardcode
geteuid()
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Remove a number of pointless checks against PATH_MAX and
add a syntax-check rule to prevent its use in future
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This patch adds support for a new storage backend with RBD support.
RBD is the RADOS Block Device and is part of the Ceph distributed storage
system.
It comes in two flavours: Qemu-RBD and Kernel RBD, this storage backend only
supports Qemu-RBD, thus limiting the use of this storage driver to Qemu only.
To function this backend relies on librbd and librados being present on the
local system.
The backend also supports Cephx authentication for safe authentication with
the Ceph cluster.
For storing credentials it uses the built-in secret mechanism of libvirt.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
Currently virDomainGetCPUStats gets total cpu usage, which consists
of:
1. vcpu usage: the physical cpu time consumed by virtual cpu(s) of
domain
2. hypervisor: `total cpu usage' - `vcpu usage'
The param 'vcpu_time' is for getting vcpu usages.
$LISTFILE is created even no domain is running, and the empty
$LISTFILE could cause improper service status.
stopped ,with saved guests
Which is not right, as there is no domain was saved.
As defined in:
http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
This offers a number of advantages:
* Allows sharing a home directory between different machines, or
sessions (eg. using NFS)
* Cleanly separates cache, runtime (eg. sockets), or app data from
user settings
* Supports performing smart or selective migration of settings
between different OS versions
* Supports reseting settings without breaking things
* Makes it possible to clear cache data to make room when the disk
is filling up
* Allows us to write a robust and efficient backup solution
* Allows an admin flexibility to change where data and settings are stored
* Dramatically reduces the complexity and incoherence of the
system for administrators
* tools/virsh.c (vshParseSnapshotDiskspec): Fix off-by-3 memmove
that would corrupt heap when parsing escaped --diskspec comma.
Bug introduced via commit v0.9.4-260-g35d52b5.
The recent push to use correct scaling terms (kB for 1000, KiB for
1024 - such as commit 9dfdead) missed some places in virsh.
* tools/virsh.c (prettyCapacity, cmdDominfo, cmdFreecell)
(cmdNodeinfo, cmdNodeMemStats, cmdMigrateSetMaxSpeed)
(cmdBlockCopy, cmdBlockPull, cmdBlockJob): Use KiB, not kB, when
referring to multiples of 1024.
* tests/virshtest.c: Update expected output to match.
https://bugzilla.redhat.com/show_bug.cgi?id=817244 mentions that
unlike most other tools, where --help or --version prevent all
further parsing of all later options, virsh was strange in that
--version stopped parsing but --help tried to plow on to the end.
There was no rationale for this original implementation (since
2005!), so I think we can safely conform to common usage patterns.
* tools/virsh.c (main): Drop useless 'help' variable.
Rather than further overloading 'blockpull', I decided to create a
new virsh command to expose the new flags of virDomainBlockRebase.
Blocking until the command completes naturally is pointless, since
the block copy job is intended to run indefinitely. Instead, I
made the command support three --wait modes: by default, it runs until
mirroring is started; with --pivot, it pivots as soon as mirroring
is started; and with --finish, it aborts (for a clean copy) as
soon as mirroring is started.
* tools/virsh.c (VSH_CMD_BLOCK_JOB_COPY): New mode.
(blockJobImpl): Support new flags.
(cmdBlockCopy): New command.
(cmdBlockJob): Support new job info, new abort flag.
* tools/virsh.pod (blockcopy, blockjob): Document the new command
and flags.
We were forgetting to check errno for overflow.
* tools/virsh.c (get_integer_keycode, vshCommandOptInt)
(vshCommandOptUInt, vshCommandOptUL, vshCommandOptLongLong)
(vshCommandOptULongLong): Rewrite to be safer.
I'm tired of shell-scripting to wait for completion of a block pull,
when virsh can be taught to do the same. I couldn't quite reuse
vshWatchJob, as this is not a case of a long-running command where
a second thread must be used to probe job status (at least, not unless
I make virsh start doing blocking waits for an event to fire), but it
served as inspiration for my simpler single-threaded loop. There is
up to a half-second delay between sending SIGINT and the job being
aborted, but I didn't think it worth the complexity of a second thread
and use of poll() just to minimize that delay.
* tools/virsh.c (cmdBlockPull): Add new options to wait for
completion.
(blockJobImpl): Add argument.
(cmdBlockJob): Adjust caller.
* tools/virsh.pod (blockjob): Document new mode.
Block job cancellation can take a while. Now that upstream qemu 1.1
has asynchronous block cancellation, we want to expose that to the user.
Therefore, the following updates are made to the virDomainBlockJob API:
A new block job event type VIR_DOMAIN_BLOCK_JOB_CANCELED is managed by
libvirt. Regardless of the flags used with virDomainBlockJobAbort, this
event will be raised: 1. when using synchronous block_job_cancel (the
event will be synthesized by libvirt), and 2. whenever it is received
from qemu (via asynchronous block-job-cancel). Note that the event
may be detected by libvirt even before the virDomainBlockJobAbort
completes (always true when it is synthesized, but also possible if
cancellation was fast).
A new extension flag VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC is added to the
virDomainBlockJobAbort API. When enabled, this function will allow
(but not require) asynchronous operation (ie, it returns as soon as
possible, which might be before the job has actually been canceled).
When the API is used in this mode, it is the responsibility of the
caller to wait for a VIR_DOMAIN_BLOCK_JOB_CANCELED event or poll via
the virDomainGetBlockJobInfo API to check the cancellation status.
This patch also exposes the new flag through virsh, and makes virsh
slightly easier to use (--async implies --abort, and lack of any options
implies --info), although it leaves the qemu implementation for later
patches.
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This patch cleans up variables used to store boolean command flags that
are inquired by vshCommandOptBool to use the bool data type instead of
an integer.
Additionally this patch cleans up flag variables that are inferred from
existing flags.
The documentation for the flag doesn't clearly state that the flag only
enhances the output and the user needs to specify other flags to list
inactive domains, that are enhanced by this flag.
Currently, we put no strains on escape sequence possibly leaving users
with console that cannot be terminated. However, not all ASCII
characters can be used as escape sequence. Only those falling in
@ - _ can be; implement and document this constraint.
The code is splattered with a mix of
sizeof foo
sizeof (foo)
sizeof(foo)
Standardize on sizeof(foo) and add a syntax check rule to
enforce it
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Leaks are introduced in commit 1cf0e3d and fe383bb.
Fixing memory leaks, in addition, the patch also fixes a potential missing
return value issue in 'if (from)' statement, without the fixing, although
the programming met a error, the subsequent codes will be executed
continually.
* tools/virsh.c (cmdSnapshotList): fix memory leaks and missing return value.
* How to reproduce?
% virsh snapshot-list <domain> --parent --roots
% virsh snapshot-list <domain> --parent --tree
% virsh snapshot-list <domain> --roots --tree
actual result:
error: --parent and --roots are mutually exclusive
error: Failed to disconnect from the hypervisor, 1 leaked reference(s)
error: --parent and --tree are mutually exclusive
error: Failed to disconnect from the hypervisor, 1 leaked reference(s)
error: --roots and --tree are mutually exclusive
error: Failed to disconnect from the hypervisor, 1 leaked reference(s)
% virsh snapshot-create-as <domain> --name "hello"
% virsh snapshot-create-as <domain> --name "libvirt"
% virsh snapshot-list <domain> --roots --from "hello"
actual result:
error: --roots and --from are mutually exclusive
Name Creation Time State
------------------------------------------------------------
libvirt 2012-03-28 13:46:51 +0800 running
Signed-off-by: Alex Jia <ajia@redhat.com>
Commit d42a2ff forgot to touch up virsh documentation, and commit
4e9953a mis-spelled the option name.
* tools/virsh.pod (snapshot-create, snapshot-create-as): Fix typo
and match recent change in flag meaning.
Found when attempting to build on Fedora 17 alpha with:
./autogen.sh --system --enable-compile-warnings=error
(this same build command works without problem on Fedora 16). All
other struct initializers for this struct have the extra field filled
in (almost always to 0), so the two errant ones were fixed by adding
in the extra 0 field.
Return statements with parameter enclosed in parentheses were modified
and parentheses were removed. The whole change was scripted, here is how:
List of files was obtained using this command:
git grep -l -e '\<return\s*([^()]*\(([^()]*)[^()]*\)*)\s*;' | \
grep -e '\.[ch]$' -e '\.py$'
Found files were modified with this command:
sed -i -e \
's_^\(.*\<return\)\s*(\(\([^()]*([^()]*)[^()]*\)*\))\s*\(;.*$\)_\1 \2\4_' \
-e 's_^\(.*\<return\)\s*(\([^()]*\))\s*\(;.*$\)_\1 \2\3_'
Then checked for nonsense.
The whole command looks like this:
git grep -l -e '\<return\s*([^()]*\(([^()]*)[^()]*\)*)\s*;' | \
grep -e '\.[ch]$' -e '\.py$' | xargs sed -i -e \
's_^\(.*\<return\)\s*(\(\([^()]*([^()]*)[^()]*\)*\))\s*\(;.*$\)_\1 \2\4_' \
-e 's_^\(.*\<return\)\s*(\([^()]*\))\s*\(;.*$\)_\1 \2\3_'
Right now, it is appallingly easy to cause qemu disk snapshots
to alter a domain then fail; for example, by requesting a two-disk
snapshot where the second disk name resides on read-only storage.
In this failure scenario, libvirt reports failure, but modifies
the live domain XML in-place to record that the first disk snapshot
was taken; and places a difficult burden on the management app
to grab the XML and reparse it to see which disks, if any, were
altered by the partial snapshot.
This patch adds a new flag where implementations can request that
the hypervisor make snapshots atomically; either no changes to
XML occur, or all disks were altered as a group. If you request
the flag, you either get outright failure up front, or you take
advantage of hypervisor abilities to make an atomic snapshot. Of
course, drivers should prefer the atomic means even without the
flag explicitly requested.
There's no way to make snapshots 100% bulletproof - even if the
hypervisor does it perfectly atomic, we could run out of memory
during the followup tasks of updating our in-memory XML, and report
a failure. However, these sorts of catastrophic failures are rare
and unlikely, and it is still nicer to know that either all
snapshots happened or none of them, as that is an easier state to
recover from.
* include/libvirt/libvirt.h.in
(VIR_DOMAIN_SNAPSHOT_CREATE_ATOMIC): New flag.
* src/libvirt.c (virDomainSnapshotCreateXML): Document it.
* tools/virsh.c (cmdSnapshotCreate, cmdSnapshotCreateAs): Expose it.
* tools/virsh.pod (snapshot-create, snapshot-create-as): Document
it.
This introduces a new running reason VIR_DOMAIN_RUNNING_WAKEUP,
and new suspend event type VIR_DOMAIN_EVENT_STARTED_WAKEUP.
While a wakeup event is emitted, the domain which entered into
VIR_DOMAIN_PMSUSPENDED will be transferred to "running"
with reason VIR_DOMAIN_RUNNING_WAKEUP, and a new domain lifecycle
event emitted with type VIR_DOMAIN_EVENT_STARTED_WAKEUP.
This introduces a new domain state pmsuspended to represent
the domain which has been suspended by guest power management,
e.g. (entered itno s3 state). Because a "running" state could
be confused in this case, one will see the guest is paused
actually while playing. And state "paused" is for the domain
which was paused by virDomainSuspend.
virsh.pod had several instances in which it referred to "the
documentation" which was a little puzzling to me since it is
documentation. Reading the document from end to end makes it clear
that it means a specific URI which was noted previously in the text,
but I had never noticed those URIs in several years of referring to
the man page. This patch adds those URIs to several additional places
in the text.
Currently if the URI passed to virConnectOpen* is NULL, then we
- Look for LIBVIRT_DEFAULT_URI env var
- Probe for drivers
This changes it so that
- Look for LIBVIRT_DEFAULT_URI env var
- Look for 'uri_default' in $HOME/.libvirt/libvirt.conf
- Probe for drivers
Thanks to cgroups, providing user vs. system time of the overall
guest is easy to add to our existing API.
* include/libvirt/libvirt.h.in (VIR_DOMAIN_CPU_STATS_USERTIME)
(VIR_DOMAIN_CPU_STATS_SYSTEMTIME): New constants.
* src/util/virtypedparam.h (virTypedParameterArrayValidate)
(virTypedParameterAssign): Enforce checking the result.
* src/qemu/qemu_driver.c (qemuDomainGetPercpuStats): Fix offender.
(qemuDomainGetTotalcpuStats): Implement new parameters.
* tools/virsh.c (cmdCPUStats): Tweak output accordingly.
Since VIR_DOMAIN_AFFECT_{LIVE,CONFIG,CURRENT} was created,
all new virsh commands use "--config" to represents the
persistent changing. This patch add "--config" option
for the old commands which still use "--persistent",
and "--persistent" is now alias of "--config".
tools/virsh.c: (use "--config", and "--persistent" is
alias of "--config" now).
cmdDomIfSetLink, cmdDomIfGetLink, cmdAttachDevice,
cmdDetachDevice, cmdUpdateDevice, cmdAttachInterface,
cmdDetachInterface, cmdAttachDisk, cmdDetachDisk
toos/virsh.pod: Update docs of the changed commands, and
add some missed docs for "--config" (detach-interface,
detach-disk, and detach-device).
The last vestige of the inaccurate 'kilobytes' when we meant 1024 is
now gone. And virsh is now useful for setting memory in units other
than KiB.
* tools/virsh.c (cmdSetmem, cmdSetmaxmem): Use new helper routine,
allow passing bogus arguments on to hypervisor to test driver
sanity checking, and fix leak on parse error.
(vshMemtuneGetSize): New helper.
(cmdMemtune): Use it.
* tools/virsh.pod (setmem, setmaxmem, memtune): Document this.
