Laine Stump [Thu, 28 May 2020 22:04:24 +0000 (18:04 -0400)]
qemu: don't reject interface update when switching to/from bridged network
If virDomainUpdateDeviceFlags() was used to update an <interface>, and
the interface type changed from type='network' where the network was
an unmanaged bridge (so actualType == bridge) to type='bridge'
(i.e. actualType *also* == bridge), the update would fail due to the
perceived change in type.
In practice it is okay to switch between any interface types that end
up using a tap device, since libvirt just needs to attach the device
to a new bridge. But in this case we were erroneously rejecting it due
to a conditional that was too restrictive. This is what the code was doing:
if (old->type != new->type)
[allow update]
else
if ((oldActual == bridge and newActual == network)
|| (oldActual == network and newActual == bridge)) {
[allow update]
else
[error]
In the case described above though, old->type and new->type don't match,
but oldActual and newActual are both 'bridge', so we get an error.
This patch changes the inner conditional so that any combination of
'network' and 'bridge' for oldActual and newActual, since they both
use a tap device connected to a bridge.
Signed-off-by: Laine Stump <laine@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Weblate gets confused if the same email address is mentioned multiple
times in the translation headers. Dedupe authors so that each author
is mentioned only once, with a range of years listed.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
To integrate with weblate the only practical option currently is to
store the .pot file in git. This is required so that it can add new
languages by cloning the .pot file. It also enables weblate to run
msgmerge on the languages whenever pulling in new changes from git.
The pot file will have to be the full content including the source
locations, so this is going to result in unpleasant diffs when it
is updated periodically.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
po: stop stripping non-translated strings from po files
We previously adopted a minimization technique for po files which
stripped source locations and non-translated msgids in order to save
space in the git repos and have saner commit diffs.
At this time it is not possible to integrate with weblate while having
non-translated msgids stripped, as it will immediately add them back
again.
By keeping all non-translated msgids, our .po files are about x2 the
size at 37 MB vs the original 18 MB. This is still way better than the
original po/ directory which was 109 MB. We're saving 38 MB by still
omitting source file locations, and another 34 MB are saved by the
dropping of all languages which are 100% untranslated.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
po: generate .pot file with strings in alphabetical order
The .po files are stored with strings in alphabetical order instead of
source file location order, because this minimizes the diffs created
when code moves around within or between files.
By default msgmerge will honour the order of strings in the .pot file
when creating a .po file, so it is useful if we also create the .pot
file with desired ordering.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
po: rename the .mini.po files to have just a .po suffix
A .mini.po file is exactly the same format as a .po file. We just used
the alternative extension as we wanted to be able to store both full and
minimized forms in the same directory.
This complicates integration with some translation tools, however, which
only really expect to see $LANG.po as a filename.
With this change we drop the rules for creating non-minimized po files,
and thus the po/*.po are always minimized. A useful side effect is that
we no longer run msgmerge during creation of the gmo files, and thus
don't need to have a date override to get reproducible builds.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
po: switch to using LINGUAS file for list of languages
To enable translation management systems to add new languages they need
to be able to modify the supported language list. The LINGUAS file is a
simple standard format that can be used for the language list, as this
is easier than modifying make variables.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We need to be able to cast from virObjectEventPtr to one of
its many subclasses. Some of these subclasses have 8 byte
alignment on 32-bit platforms, but virObjectEventPtr only
has 4 byte alignment.
Previously the virObject base class had 8 byte alignment
but this dropped to 4 byte when converted to inherit from
GObject. This introduces cast alignment warnings on 32-bit:
../../src/conf/domain_event.c: In function 'virDomainEventDispatchDefaultFunc':
../../src/conf/domain_event.c:1656:30: error: cast increases required alignment of target type [-Werror=cast-align]
1656 | rtcChangeEvent = (virDomainEventRTCChangePtr)event;
| ^
../../src/conf/domain_event.c:1785:34: error: cast increases required alignment of target type [-Werror=cast-align]
1785 | balloonChangeEvent = (virDomainEventBalloonChangePtr)event;
| ^
../../src/conf/domain_event.c:1896:35: error: cast increases required alignment of target type [-Werror=cast-align]
1896 | blockThresholdEvent = (virDomainEventBlockThresholdPtr)event;
| ^
../../src/conf/domain_event.c: In function 'virDomainQemuMonitorEventDispatchFunc':
../../src/conf/domain_event.c:1974:24: error: cast increases required alignment of target type [-Werror=cast-align]
1974 | qemuMonitorEvent = (virDomainQemuMonitorEventPtr)event;
| ^
../../src/conf/domain_event.c: In function 'virDomainQemuMonitorEventFilter':
../../src/conf/domain_event.c:2179:20: error: cast increases required alignment of target type [-Werror=cast-align]
2179 | monitorEvent = (virDomainQemuMonitorEventPtr) event;
| ^
Forcing 8-byte alignment on virObjectEventPtr removes the
alignment increase during casts to subclasses.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This is convenience macro, use it more. This commit was generated
using the following spatch:
@@
symbol node;
identifier old;
identifier ctxt;
type xmlNodePtr;
@@
- xmlNodePtr old;
+ VIR_XPATH_NODE_AUTORESTORE(ctxt);
...
- old = ctxt->node;
... when != old
- ctxt->node = old;
@@
symbol node;
identifier old;
identifier ctxt;
type xmlNodePtr;
@@
- xmlNodePtr old = ctxt->node;
+ VIR_XPATH_NODE_AUTORESTORE(ctxt);
... when != old
- ctxt->node = old;
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Jim Fehlig [Wed, 27 May 2020 23:29:33 +0000 (17:29 -0600)]
libxl: Normalize MAC address in device conf when hotplugging a netdev
Similar to commits 55ce6564634 and 6c17606b7cc in the qemu driver, make
separate copies of persistent and live device config and normalize the MAC
address between the two. This avoids having different MAC address for the
persistent and live config, ensuring the device has the same address when
the persistent config takes affect after a VM restart.
Signed-off-by: Jim Fehlig <jfehlig@suse.com> Reviewed-by: Laine Stump <laine@redhat.com>
Prior to 2621d48f005a "gnulib: delete all gnulib integration",
one could pass ./autogen.sh --no-git to prevent the libvirt build
system from running git submodule update.
This feature is needed by systems like the Xen Project CI which want
to explicitly control the revisions of every tree. These will
typically arrange to initialise the submodules check out the right
version of everything, and then expect the build system not to mess
with it any more.
Despite to the old documentation comments referring only to gnulib,
the --no-git feature is required not only because of gnulib but also
because of the other submodule, src/keycodemapdb.
(And in any case, even if it were no longer required because all the
submodules were removed, it ought ideally to have been retained as a
no-op for compaibility reasons.)
So restore the --no-git feature.
Because of the way the argument parsing of autogen.sh works, it is
easiest to recognise this option only if it comes first. This works
for the Xen Project CI, which has always passed this option first.
If something else is using this option (and hasn't introduced a
different workaround in the meantime), not in the first position,
then perhaps a more sophisticated approach will be needed. But I
think this will do for now.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
As the name clearly implies, it's supposed to list the .html.in
files that are generated from .rst files, but it mistakenly lists
the corresponding .html files instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Ján Tomko [Wed, 3 Jun 2020 10:42:34 +0000 (12:42 +0200)]
docs: point to GitLab as the primary git hosting
We still point to git repositories hosted on libvirt.org in various
places. Replace the links to their gitlab.com equivalents.
Note that GitLab is trying to be smart here and
https://gitlab.com/libvirt/libvirt
redirects to
https://gitlab.com/libvirt/libvirt.git
when doing a 'git clone' and vice-versa when visiting from the
browser, so I only kept the .git suffix in places that explicitly
mentioned 'git clone'.
Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
To prepare for a conversion to GObject, we need virObjectUnref
to have the same API design as g_object_unref, which means it
needs to be void.
A few places do actually care about the return value though,
and in these cases a thread local flag is used to determine
if the dispose method was invoked.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some, but not all, of the monitor event handlers check
the virObjectUnref return value to see if the domain
was disposed.
It should not be possible for this to happen, since
the function already holds a lock on the domain and
has only just acquired an extra reference on the
domain a few lines earlier.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Michal Privoznik [Tue, 26 May 2020 14:26:25 +0000 (16:26 +0200)]
qemu: Skip pre-creation of NVMe disks
Upon migration with disks, libvirt determines if each disk exists
on the destination and tries to pre-create missing ones. Well,
NVMe disks can't be pre-created, but they can be checked for
presence.
security: don't fail if built without attr support
If built without attr support removing any image will trigger
qemuBlockRemoveImageMetadata (the one that emits the warning)
-> qemuSecurityMoveImageMetadata
-> virSecurityManagerMoveImageMetadata
-> virSecurityDACMoveImageMetadata
-> virSecurityDACMoveImageMetadataHelper
-> virProcessRunInFork (spawns subprocess)
-> virSecurityMoveRememberedLabel
In there due to !HAVE_LIBATTR virFileGetXAttrQuiet will return
ENOSYS and from there the chain will error out.
That is wrong and looks like:
libvirtd[6320]: internal error: child reported (status=125):
libvirtd[6320]: Unable to remove disk metadata on vm testguest from
/var/lib/uvtool/libvirt/images/testguest.qcow (disk target vda)
This change makes virSecurityDACMoveImageMetadataHelper and
virSecuritySELinuxMoveImageMetadataHelper accept that
error code gracefully and in that sense it is an extension of: 5214b2f1a3f "security: Don't skip label restore on file systems lacking XATTRs"
which does the same for other call chains into the virFile*XAttr functions.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Erik Skultety [Mon, 25 May 2020 12:46:26 +0000 (14:46 +0200)]
scripts: Fix E741 that pycodesyle is pointing out during syntax-check
With newer pycodestyle 2.6.0 (which is part of flake8-3.8.2) reports
the following pep violation during syntax-check:
../scripts/check-remote-protocol.py:95:9: E741 ambiguous variable name 'l'
for l in err.strip().split("\n")
On all the distros we test on, this hasn't occurred yet, but with the
future update of flake8 it likely would. The fix is easy, just name the
variable appropriately.
Signed-off-by: Erik Skultety <eskultet@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Jiri Denemark [Tue, 19 May 2020 13:08:11 +0000 (15:08 +0200)]
cpu_map: Add Cooperlake x86 CPU model
The stepping range (10-11) is likely incomplete. QEMU uses 10 and the
CPUID data for Cooperlake show 11. We will update the range if needed
once more details about he CPU are available.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
qemuProcessRefreshCPU: skip 'host-model' logic for pSeries guests
Commit v3.10.0-182-g237f045d9a ("qemu: Ignore fallback CPU attribute
on reconnect") forced CPU 'fallback' to ALLOW, regardless of user
choice. This fixed a situation in which guests created with older
Libvirt versions, which used CPU mode 'host-model' in runtime, would
fail to launch in a newer Libvirt if the fallback was set to FORBID.
This would lead to a scenario where the CPU was translated to 'host-model'
to 'custom', but then the FORBID setting would make the translation
process fail.
PSeries can operate with 'host-model' in runtime due to specific PPC64
mechanics regarding compatibility mode. The update() implementation of
the cpuDriverPPC64 driver is a NO-OP if CPU mode is 'host-model', and
the driver does not implement translate(). The commit mentioned above
is causing PSeries guests to get their 'fallback' setting to ALLOW,
overwriting user choice, exposing a design problem in
qemuProcessRefreshCPU() - for PSeries guests, handling 'host-model'
as it is being done does not apply.
All other cpuArchDrivers implements update() and changes guest mode
to VIR_CPU_MODE_CUSTOM, meaning that PSeries is currently the only
exception to this logic. Let's make it official.
Jiri Denemark [Fri, 15 May 2020 20:00:29 +0000 (22:00 +0200)]
qemu: Invalidate capabilities when host CPU changes
The host CPU related info stored in the capabilities cache is no longer
valid after the host CPU changes. This is not a frequent situation in
real world, but it can easily happen in nested scenarios when a disk
image is started with various CPUs.
Jiri Denemark [Tue, 31 Mar 2020 22:44:00 +0000 (00:44 +0200)]
hostcpu: Introduce virHostCPUGetSignature
The purpose of this function is to give a short description that would
be change when a host CPU is replaced with a different model. This is
currently implemented by reading /proc/cpuinfo.
It should be implemented for all architectures for which the QEMU driver
stores host CPU data in the capabilities cache. In other words for archs
that support host-model CPUs.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
scripts: emit raw enum value in API build description
Currently the value for an enum is only emitted if it is a plain
string. If the enum is an integer or hex value, or a complex code block,
it is omitted from the API build. This fixes that by emitting the raw
value if no string value is present.
scripts: emit enum parameters in API build description
Currently the information about enums in the API document lacks any
mention of parameters, so it is impossible to tell what kind of enum
declaration is present in the libvirt API header. With this change
Jonathon Jongsma [Thu, 21 May 2020 20:09:35 +0000 (15:09 -0500)]
docs: Document full node device xml in formatnode.html.in
Some of the node device xml schema was documented in drvnodedev.html.in
rather than in formatnode.html.in. Move all of the schema documentation
to formatnode.html.in and provide reference links from the
drvnodedev.html.in page.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Jonathon Jongsma [Thu, 21 May 2020 20:09:34 +0000 (15:09 -0500)]
docs: Fix names for PF and VF PCI device capabilities
The proper name for physical function capability is 'phys_function', not
'physical_function'. Likewise, a virtual function capability is
'virt_functions' rather than 'virtual_function'.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Michal Privoznik [Thu, 21 May 2020 18:55:01 +0000 (20:55 +0200)]
testCompareXMLToArgvValidateSchema: Construct @vm from scratch
Currently, the @vm is passed in as an argument and
testCompareXMLToArgvCreateArgs() is called over it which means
under the hood qemuProcessPrepareDomain() is called. But at the
point where ValidateSchema() is called, the domain object is
already 'prepared', i.e. all device aliases are assigned and so
on. But our code is not prepared to 'prepare' a domain twice - it
simply overwrites all the pointers leading to a memory leak.
Fortunately, this is only the problem of this test.
Resolve this by constructing the domain object from scratch.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
logging.html.in: fix number of output formats available
There are 4 formats available (x:stderr, x:syslog:name,
x:file:file_path, x:journald), not 3. Use "the following"
instead of the actual number to avoid the need to update
the number every time a new form is added/removed.
Suggested-by: Pino Toscano <ptoscano@redhat.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Peter Krempa [Fri, 15 May 2020 12:33:10 +0000 (14:33 +0200)]
qemuxml2argvtest: Add QAPI/QMP schema validation for -blockdev and -netdev
Our hotplug test cases are weak in comparison to the qemuxml2argvtest.
Use all the the input data to also validate the arguments for -netdev
and -blockdev against the appropriate commands of the QMP schema.
Note that currently it's done just for the _CAPS versions of tests but
commenting out a line in the test file allows to validate even cases
which don't use real capabilities.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Fri, 15 May 2020 12:24:21 +0000 (14:24 +0200)]
qemu: Prepare for testing of 'netdev_add' props via qemuxml2argvtest
qemuxml2argv test suite is way more comprehensive than the hotplug
suite. Since we share the code paths for monitor and command line
hotplug we can easily test the properties of devices against the QAPI
schema.
To achieve this we'll need to skip the JSON->commandline conversion for
the test run so that we can analyze the pure properties. This patch adds
flags for the comand line generator and hook them into the
JSON->commandline convertor for -netdev. An upcoming patch will make use
of this new infrastructure.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
I guess the original idea was to make it extensible while not worrying
about adding another object for it. Either way it requires us to add yet
another JSON->cmdline convertor for arrays.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Thu, 14 May 2020 20:50:59 +0000 (22:50 +0200)]
qemu: command: Generate -netdev command line via JSON->cmdline conversion
The 'netdev_add' command was recently formally described in qemu via the
QMP schema. This means that it also requires the arguments to be
properly formatted. Our current approach is to generate the command line
and then use qemuMonitorJSONKeywordStringToJSON to get the JSON
properties for the monitor. This will not work if we need to pass some
fields as numbers or booleans.
In this step we re-do internals of qemuBuildHostNetStr to format a JSON
object which is converted back via virQEMUBuildNetdevCommandlineFromJSON
to the equivalent command line. This will later allow fixing of the
monitor code to use the JSON object directly rather than rely on the
conversion.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
In preparation for converting the generator of -netdev to generate JSON
which will be used to do the command line rather than the other way
around we need to introduce a convertor which properly configures
virQEMUBuildCommandLineJSON for the quirks of -netdev.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Fri, 15 May 2020 06:50:31 +0000 (08:50 +0200)]
testCompareXMLToArgv: Split out preparation and command formatting
There are multiple steps of setting up the domain definition prior to
formatting the command line for the tests. Extract it to a separate
function so that it's self-contained and also will allow re-running the
command line formatting which will be necessary for QMP schema
validation tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Thu, 14 May 2020 07:41:48 +0000 (09:41 +0200)]
virQEMUBuildCommandLineJSON: Allow skipping certain keys
Allow reusing this for formatting of netdev_add arguments into -netdev.
We need to be able to skip the 'type' property as it's used without the
prefix by our generator.
Add infrastructure which allows skipping property with a specific name.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Thu, 14 May 2020 10:02:55 +0000 (12:02 +0200)]
qemuBuildHostNetStr: Stop using 'ipv6-net' convenience argument
In qemu the argument of 'ipv6-net' is split up into 'ipv6-prefix' and
'ipv6-prefixlen'. Additionally now that 'netdev_add' was qapified, only
the real properties are allowed. Switch to using them explicitly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Thu, 14 May 2020 11:01:59 +0000 (13:01 +0200)]
qemuBuildChannelChrDeviceStr: Remove formatting of properties for -netdev
The output of the function is fed as argument to '-device' command line
argument or 'device_add' monitor command except for 'guestfwd' channels
where it needs to be fed to -netdev/netdev_add. This is confusing and
error prone. Split it up since the caller needs to know which
command/option to use anyways, so the caller can call the appropriate
function without any magic.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Thu, 14 May 2020 10:51:21 +0000 (12:51 +0200)]
qemuBuildChannelsCommandLine: Extract common formatting of 'chardev'
Both active branches create the same backend chardev. Since there is no
other case, extract it before the switch so that we don't have to
duplicate it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Wed, 13 May 2020 18:41:45 +0000 (20:41 +0200)]
qemu: domain: Forbid unsupported 'tftp' protocol and handle tests
'tftp' storage protocol was supported by qemu until 2.7.0. Add an
interlock when blockdev is used and drop the test case for it as it's
IMO not worth adding another test file just for that.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
Peter Krempa [Wed, 29 Apr 2020 18:02:28 +0000 (20:02 +0200)]
qemumonitorjsontest: Mark recently deprecated migration command in our tests
"migrate_set_downtime", "migrate_set_speed", and
"query-migrate-cache-size" were marked as deprecated in the QMP schema
in qemu 5.0. Since libvirt still actively uses them we must not mark
them as okay to be missing, but still mark them as deprecated, so that
we can add tests for deprecated commands.
The replacement of the command usage in libvirt is tracked by:
https://bugzilla.redhat.com/show_bug.cgi?id=1829543
https://bugzilla.redhat.com/show_bug.cgi?id=1829544
https://bugzilla.redhat.com/show_bug.cgi?id=1829545
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Wed, 29 Apr 2020 17:59:51 +0000 (19:59 +0200)]
qemumonitorjsontest: Allow use of deprecated 'cpu-add' and 'change' command
Modify the generated test cases for the 'cpu-add' and 'change' command
which are deprecated by qemu. We now use device-add and
blockdev-change-media instead so we are okay if they will be removed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Wed, 29 Apr 2020 17:57:28 +0000 (19:57 +0200)]
qemumonitorjsontest: Allow use of deprecated 'query-cpus'
The command was replaced with 'query-cpus-fast' which is always used
when detected by the capabilities so we can allow our test usage of
the deprecated command even if it will be removed from the schema.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>