Commit Graph

40196 Commits

Author SHA1 Message Date
Pavel Hrdina
ba6385c952 domain_conf: remove unused rc variable
Leftover after commit <479a8c1fa1e0f58d3165c0446cd1abd72160256e>.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-11-16 17:12:09 +01:00
Peter Krempa
0316c28a45 qemu: backup: Install bitmap for incremental backup to appropriate node only
Libvirt's backup code has two modes:

1) push - where qemu actively writes the difference since the checkpoint
          into the output file

2) pull - where we instruct qemu to expose a frozen disk state along
          with a bitmap of blocks which changed since the checkpoint

For push mode qemu needs the temporary bitmap we use where we calculate
the actual changes to be present on the block node backing the disk.

For pull mode where we expose the bitmap via NBD qemu actually wants the
bitmap to be present for the exported block node which is the scratch
file.

Until now we've calculated the bitmap twice and installed it both to the
scratch file and to the disk node, but we don't need to since we know
when it's needed.

Pass in the 'pull' flag and decide where to install the bitmap according
to it and also when to register the bitmap name with the blockjob.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-11-16 14:12:38 +01:00
Peter Krempa
6f30d7003a NEWS: Mention change of default for TLS certificate verification
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:11:56 +01:00
Peter Krempa
0200fe42a0 qemu: conf: Enable 'backup_tls_x509_verify' by default
The NBD server used to export pull-mode backups doesn't have any other
form of client authentication on top of the TLS transport, so the only
way to authenticate clients is to verify their certificate.

Enable this option by defauilt when both 'backup_tls_x509_verify' and
'default_tls_x509_verify' were not configured.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1879477
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-11-16 14:11:56 +01:00
Peter Krempa
930583149c qemu: conf: Enable 'migrate_tls_x509_verify' by default
The migration stream connection and also the NBD server for non-shared
storage migration don't have any other form of client authentication on
top of the TLS transport, so the only way to authenticate clients is to
verify their certificate.

Enable this option by defauilt when both 'migrate_tls_x509_verify' and
'default_tls_x509_verify' were not configured.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1879477
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-11-16 14:11:56 +01:00
Peter Krempa
019f962c86 qemu: conf: Enable 'chardev_tls_x509_verify' by default
Chardevs don't have any other form of client authentication on top of
the TLS transport, so the only way to authenticate clients is to verify
their certificate.

Enable this option by defauilt when both 'chardev_tls_x509_verify' and
'default_tls_x509_verify' were not configured.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1879477
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:11:56 +01:00
Peter Krempa
940ef34443 qemu: conf: Clarify default of "vnc_tls_x509_verify"
If both "vnc_tls_x509_verify" and "default_tls_x509_verify" are missing
from the config file the client certificate validation is disabled. VNC
provides a layer of authentication so client certificate validation is
not strictly required.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:11:56 +01:00
Peter Krempa
9ba2a06e47 qemu: conf: Allow individual control of default value for *_tls_x509_verify
Store whether "default_tls_x509_verify" was provided and enhance the
SET_TLS_VERIFY_DEFAULT macro so that indiviual users can provide their
own default if "default_tls_x509_verify" config option was not provided.

For now we keep setting it to 'false'.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:11:56 +01:00
Peter Krempa
6a1bb797a7 qemuDomainControllerIsBusy: Fully populate switch statement
Typecast the controller type variable to the appropriate type and add
the missing controller types for future extension.

Note that we currently allow only unplug of
VIR_DOMAIN_CONTROLLER_TYPE_SCSI thus the other controller types which
are not implemented return false now.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-11-16 14:05:06 +01:00
Peter Krempa
279ba2d1cc qemuDomainDiskControllerIsBusy: Optimize checking for SCSI hostdevs
Iterate through hostdevs only when the controller type is
VIR_DOMAIN_CONTROLLER_TYPE_SCSI.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-11-16 14:05:06 +01:00
Peter Krempa
022f4d431b qemuDomainDiskControllerIsBusy: Fix logic of matching disk bus to controller type
The tests which match the disk bus to the controller type were backwards
in this function. This meant that any disk bus type (such as
VIR_DOMAIN_DISK_BUS_SATA) would not skip the controller index comparison
even if the removed controller was of a different type.

Switch the internals to a switch statement with selects the controller
type in the first place and a proper type so that new controller types
are added in the future.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1870072
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-11-16 14:05:06 +01:00
Peter Krempa
a6d5a5712f qemuDomain(Disk)ControllerIsBusy: Fix function header format
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-11-16 14:05:05 +01:00
Peter Krempa
9ce41c8896 docs: kbase: Reorder some articles in the 'Usage' section
Historically we've added them in chronological order, but certain
articles are more likely to be needed and thus are easier to find when
placed earlier.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:04 +01:00
Peter Krempa
f6b0a311aa docs: css: Modify appearance of the kbase directory page
Re-style the knowledge base to look like the 'docs.html' page.

We still have room to add one more column.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:04 +01:00
Peter Krempa
9fd2e78b96 docs: xsl: Unify stylability of main container element
page.xsl was adding '<div id="content">' wrapper for the content picked
up from the <body> element from the original input file. Optionally
class="$DOCNAME" was added for some documents taken from <body>.

Since docs generated from RST by docutils have a '<div class='document'
id='$DOCNAME>' we actually don't need an extra wrapper for them.

Additionally if we standardize on one of them we can use the same styles
for both. I've picked the latter because it makes more sense to use the
document name as 'id'.

This patch:
1) Modifies the XSL trasformation to add the wrapper only if it's not
   present.

2) Modifies the XSL transformation to use 'id' for document name and
   class='document' for the wrapper element.

3) Changes docs.html/index.html/hvsupport.html to use 'id' instead of
   'class' for document name.

4) Modifies the main stylesheet to keep styling the elements properly

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:04 +01:00
Peter Krempa
5f0d7fc636 docs: kbase: Split articles into sections
Split the existing list of kbase articles into a 'Usage' category and
into 'Internals/Debugging'. This will later represent the two columns on
the web page.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:03 +01:00
Peter Krempa
24cd919aaa docs: kbase: Remove extra container from index page
The container was used to apply CSS classes to the content, so the looks
are degraded. The idea is to have a similar layout to the 'docs.html'
page with multiple columns, which will be added later.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:03 +01:00
Peter Krempa
7462301955 docs: kbase: Move index page to docs/kbase
Move docs/kbase.rst to docs/kbase/index.rst so that the directory itself
shows our index page rather than the autogenerated list of files by the
webserver.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:03 +01:00
Peter Krempa
95f059838e docs: css: Add a gray box around table of contents of RST based docs
Emphasise the table of contents visually.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:03 +01:00
Peter Krempa
f988d4320d docs: xslt: Use 'Link' rather than 'Permalink' in header links
The anchors are based on the article or chapter headers, thus they are
not 100% permanent. Especially with pages generated from RST.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:03 +01:00
Peter Krempa
501ff523e7 docs: Fix title of 'docs' page
XSLT transformation generates the page title from the topmost <h1>
element which is not present in 'docs.html.in'. Add it and hide it in
the CSS.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 14:04:03 +01:00
Andrea Bolognani
a35426bb64 news: Fix vertical and horizontal spacing
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2020-11-16 12:42:53 +01:00
Jianan Gao
99e5c011b3 news: Document apparmor improvements in v6.7.0
Add news about apparmor improvements.

Signed-off-by: Jianan Gao <jgao@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2020-11-16 12:37:38 +01:00
Andrea Bolognani
57515a4c36 util: Make virFileClose() quiet on success
While it's certainly good to log events like "failed to close fd"
and "tried to close invalid fd", which are likely to be the
consequence of some bug in libvirt, logging a message every single
time a file descriptor is closed successfully is perhaps excessive
and can lead to useful information being missed among the noise.

Log filters don't help in this situation, because filtering out all
of util.file is too big a hammer and would cause important messages
to be left out as well.

To give an idea of just how much noise this single debug statement
can cause, here's a real life example from a quite large libvirtd
log I had to look at recently:

  $ grep virFile libvirt.log | wc -l
  1307
  $ grep virFile libvirt.log | grep -v 'Closed fd' | wc -l
  343

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-16 09:18:03 +01:00
Laine Stump
7754933983 util: remove ATTRIBUTE_NONNULL from virDirClose declaration
Before commit 24d8968c, virDirClose took a DIR**, and that was never
NULL, so its declaration included ATTRIBUTE_NONNULL(1). Since that
commit, virDirClose takes a DIR*, and it may be NULL (e.g. if the DIR*
is initialized to NULL and was never closed).

Even though virDirClose() is currently only called implicitly (as the
cleanup for a g_autoptr(DIR)), and (as I've just newly learned) the
autocleanup function g_autoptr will only be called if the pointer in
question is non-null (see the definition of
_GLIB_AUTOPTR_CLEAR_FUNC_NAME in
/usr/include/glib-2.0/glib/gmacros.h), it does still cause Coverity to
complain that it *could* be called with a NULL, and it's also possible
that in the future someone might add code that explicitly calls
virDirClose.

To eliminate the Coverity complaints, and protect against the
hypothetical future where someone both explicitly calls virDirClose()
with a potentially NULL value, *and* re-enables the nonnull directive
when not building with Coverity (disabled by commit eefb881) this
patch removes the ATTRIBUTE_NONNULL(1) from the declaration of
virDirClose().

Fixes: 24d8968cd0
Reported-by: John Ferlan <jferlan@redhat.com>
Details-Research-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Laine Stump <laine@redhat.com>
2020-11-13 14:58:48 -05:00
Daniel Henrique Barboza
c441f60be8 qemu_driver.c: do not redefine 'event' in qemuDomainDefineXMLFlags()
A bad merge while rebasing 74b2834333 caused the @event variable
to be defined twice, inside the 'cleanup' label, causing coverity
errors.

This code was originally moved outside of the label by commit
773c7c4361. Delete the unintended code in the 'cleanup'
label.

Fixes: 74b2834333
Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 16:53:22 -03:00
Andrea Bolognani
045ecbeec6 kbase: Shorten "less verbose QEMU logging" example
Rationale for the changes:

  * access can be filtered out entirely, as nothing very
    interesting is produced by the only other component in the
    same package (access.accessdriverpolkit);

  * util.udev doesn't exist.

Related filters are also more consistently grouped together.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-11-13 18:15:38 +01:00
Michal Privoznik
1b077e6116 virnetdevopenvswitch: Fix ATTRIBUTE_NONNULL() tag for virNetDevOpenvswitchGetVhostuserIfname()
After e4c29e2904 the function has one argument more and the
argument that can't be NULL moved from second to third position.

Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2020-11-13 18:12:49 +01:00
Jonathan Watt
1423c1d8bc docs: compiling.html: pass -d to xz to decompress
tar on macOS recognizes XZ compression automatically, but that is
not the case for GNU tar (1.32 at least).  On Fedora 33 the current
instructions result in the following error:

  $ xz -c libvirt-6.9.0.tar.xz | tar xvf -
  tar: Archive is compressed. Use -J option
  tar: Error is not recoverable: exiting now

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Jonathan Watt <jwatt@jwatt.org>
2020-11-13 16:22:43 +00:00
Daniel Henrique Barboza
66ee13809c qemu_domain.c: modernize qemuMonitorGetCpuHalted()
Use g_autoptr() and remove the 'cleanup' label.

Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
8a778ebfe1 qemu_domain.c: modernize qemuDomainWriteMasterKeyFile()
Use VIR_AUTOCLOSE with 'fd' and delete the 'cleanup' label.

Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
5a5fde03bb qemu_domain.c: modernize qemuDomainFixupCPUs()
Use g_autoptr() to deprecate the 'cleanup' label.

Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
f17de6c173 qemu_domain.c: remove unneeded cleanup labels
Remove obsolete 'cleanup' labels after the changes from the
previous patch.

Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
c269d7ad2d qemu_domain.c: use g_autoptr() with virDomainDef pointers
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
0ea83f7ebb qemu_snapshot.c: remove uneeded 'cleanup' label in qemuSnapshotDelete()
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
269dffd0ce qemu_driver.c: remove unneeded 'cleanup' labels
Some labels became deprecated after the previous patches.

Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
9c215628d6 qemu_driver.c: use g_autoptr() with virDomainDeviceDefPtr
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:44 -03:00
Daniel Henrique Barboza
94196ba605 qemu_driver.c: use g_autoptr() with qemuMigrationParams pointers
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:43 -03:00
Daniel Henrique Barboza
74b2834333 qemu_driver.c: use g_autoptr() with virDomainDef pointers
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 12:11:43 -03:00
Thomas Huth
6f0ee50be2 migration.html: Fix the spelling of the --persistent parameter
"--persist" is missing the "ent" at the end.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-11-13 15:58:52 +01:00
Thomas Huth
0b6d0e2046 migration.html: Fix the spelling of the --undefinesource parameter
There is no dash between "undefine" and "source" in this parameter.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-11-13 15:22:37 +01:00
Nikolay Shirokovskiy
b814d499a7 qemu: remove possible garbage left from previous rename/undefine
Due to failures to unlink on previous rename/undefine we can already have
autolink etc files for the domain to be defined. Remove them.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
773c7c4361 qemu: qemuDomainDefineXMLFlags: move cleanup logic to cleanup section
Let's move objlist restoring to cleanup section so that we can handle failure
of actions between virDomainObjListAdd and virDomainDefSave. We are going
to add such actions in next patch.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
e2738b2bd7 qemu: rename: remove snapshot/checkpoint restriction
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
a3259e47d2 qemu: update name on reverting from snapshot
If domain name is changed since snapshot we need to update it to current in
config taken from snapshot.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
3b1244bffd qemu: rename: support renaming checkpoints directory
This is basically just saves checkpoints metadata on disk after name is changed
in memory as path to domain checkpoints directory depends on name. After that
old checkpoint directory is deleted with checkpoint metadata files.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
4770a96c66 qemu: rename: support renaming snapshots directory
This is basically just saves snapshots metadata on disk after name is changed
in memory as path to domain snapshot directory depends on name. After that
old snapshot directory is deleted with snapshot metadata files.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
1f209eac1d qemu: remove duplicate code for removing remnant files
This patch also changes functionality a bit.

First if unlinking of old config file is failed we rollback and return error
previously and now we return success. I don't think this makes much difference.
I guess in both cases on libvirtd restart we have to deal with both new and old
config existing on disk with different names but same uuid.

Second if unlinking of old autolink is failed we rollback previously which
was not right as at this point we already unlink old config file. So this
is fixed now.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:50 +03:00
Nikolay Shirokovskiy
a6c3b5e6a1 qemu: rename: return instead of goto if no cleanup required
Going to cleanup label is mere return -1 thus let's just return
instead of goto to this label.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:49 +03:00
Nikolay Shirokovskiy
9a5ac61c4e qemu: rename: send events only on success
We can simplify cleanup section by moving sending events to success path only
because only on sucess path events are not NULL.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-11-13 14:49:49 +03:00