Commit Graph

30972 Commits

Author SHA1 Message Date
Peter Krempa
ff8bc0876d tests: qemuxml2argv: Add 'CAPS_LATEST' version of 'disk-network-nbd'
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:35 +02:00
Peter Krempa
14ded7bb83 tests: qemu: Unify nbd disk source testing
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:35 +02:00
Peter Krempa
a1bca5479e tests: qemuxml2argv: Add 'CAPS_LATEST' version of 'disk-network-iscsi'
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:35 +02:00
Peter Krempa
a717cf2c94 tests: qemu: Unify iscsi disk source testing
Move various different iSCSI configuration into one test file.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
d1c9c6bf74 tests: qemu: Unify disk cache testing
Move the 'unsafe' cache test into 'disk-cache' and remove all the
individual cases for one cache mode each.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
b60e5f9198 tests: qemu: Add xml2xml and minimal version of 'disk-cache' test
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
e38a890c93 tests: qemuxml2argv: Rename disk-write-cache test do disk-cache
We'll aggregate testing of all cache modes in this test later on.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
9245aad664 tests: qemuxml2argv: Add 'CAPS_LATEST' version of 'disk-aio' test
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
cc0f112a63 tests: qemuxml2argv: Add 'CAPS_LATEST' version for 'disk-detect-zeroes'
This test also excercises options of 'discard'.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
6bcffc5113 tests: qemuxml2argv: Add 'CAPS_LATEST' data for disk-cdrom* tests
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
e5dce69a9c tests: qemuxml2argv: Unify testing of local cdroms
Test empty cdroms along with cdroms with medium.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:34 +02:00
Peter Krempa
5617c1d30f tests: qemuxml2argv: Unify network cdrom source testing
Unify most of the tests into a common test named disk-cdrom-network by
adding multiple cdroms. The 'http' test is dropped since there can be
only 4 cdroms.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:33 +02:00
Peter Krempa
f6a1a8911e tests: qemuxml2argv: Remove tests obsoleted by assuming support for '-device'
Few disk tests were testing support for pure -drive command line
generation for disks now that we assume it for all qemu versions the
cases are obsolete.

Replacements:
disk-readonly-no-device -> disk-readonly-disk
disk-floppy-tray-no-device -> disk-floppy-tray
disk-cdrom-tray-no-device -> disk-cdrom-tray

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:33 +02:00
Peter Krempa
e38ebbc1c0 tests: qemuxml2argv: Add 'CAPS_LATEST' version of "disk-copy_on_read"
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:33 +02:00
Peter Krempa
e9d0e2fd7f tests: qemuxml2xml: Remove duplicate test disk-copy-on-read.xml
We also have disk-copy_on_read.xml which also tests the command line.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:33 +02:00
Peter Krempa
0bdb704383 tests: qemu: Drop 'drive' from disk tests
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-23 15:32:33 +02:00
Andrea Bolognani
7d70a63b94 util: Improve virStrncpy() implementation
We finally get rid of the strncpy()-like semantics
and implement our own, more sensible ones instead.

As a bonus, this also fixes compilation on MinGW.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:37 +02:00
Andrea Bolognani
19136bbf10 esx: Use memcpy() in esxVI_CURL_Debug()
We're going to change virStrncpy() in a way that
requires the source string to be NULL-terminated, so
we'll no longer be able to use in this context.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:33 +02:00
Andrea Bolognani
6c0d0210cb src: Make virStr*cpy*() functions return an int
Currently, the functions return a pointer to the
destination buffer on success or NULL on failure.

Not only does this kind of error handling look quite
alien in the context of libvirt, where most functions
return zero on success and a negative int on failure,
but it's also somewhat pointless because unless there's
been a failure the returned pointer will be the same
one passed in by the user, thus offering no additional
value.

Change the functions so that they return an int
instead.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:30 +02:00
Andrea Bolognani
583bdfa65c src: Don't rely on strncpy()-like behavior
The strncpy() function has this quirk where it will copy
*up* to the requested number of bytes, that is, it will
stop early if it encounters a NULL byte in the source
string.

This makes it legal to pass the size of the destination
buffer (minus one byte needed for the string terminator)
as the number of bytes to copy and still get something
somewhat reasonable out of the operation; unfortunately,
it also makes the function difficult to reason about
and way too easy to misuse.

We want to move away from the way strncpy() behaves and
towards better defined semantics, where virStrncpy()
will always copy *exactly* the number of bytes it's
been asked to copy; before we can do that, though, we
have to change a few of the callers.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:27 +02:00
Andrea Bolognani
dee35f6acf src: Use virStrcpy() wherever possible
virStrncpy() allows us to copy a substring, but if we're
going to copy the entire thing it's much more convenient
to use virStrcpy() instead.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:25 +02:00
Andrea Bolognani
5d481d0d02 src: Use VIR_STRDUP() wherever possible
virStrcpy() and friends are useful when the destination
buffer has already been allocated, eg. as part of a struct;
if we have to allocate it on the spot, VIR_STRDUP() is a
better choice.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:23 +02:00
Andrea Bolognani
bfb8ab1b2c src: Use virStrcpyStatic() wherever possible
This convenience macro was created for the simple cases
where the length of the source string and the size of the
destination buffer can be figued out with strlen() and
sizeof() respectively, so we should use it wherever
possible instead of open-coding parts of it.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:21 +02:00
Andrea Bolognani
c9d5f2d989 src: Use virStrcpyStatic() to avoid truncation
The way virStrncpy() is called here will never result in
buffer overflow, but it won't prevent or detect truncation
either, despite what the error message might suggest. Use
virStrcpyStatic(), which does all of the above, instead.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-07-23 14:27:13 +02:00
Daniel P. Berrangé
f508a65a21 rpm: remove conditionals for systemd
All our supported RHEL and Fedora versions include systemd, so we can
assume it is always present in the spec.

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-23 11:37:18 +01:00
Daniel P. Berrangé
0f5c19b4b6 rpm: increase min required RHEL to 7
We no longer build on RHEL-6, so can bump min required RHEL to 7
removing many conditions.

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-23 11:37:13 +01:00
Daniel P. Berrangé
cf92b90e35 tests: fix TLS handshake failure with TLS 1.3
When gnutls negotiates TLS 1.3 instead of 1.2, the order of messages
sent by the handshake changes. This exposed a logic bug in the test
suite which caused us to wait for the server to see handshake
completion, but not wait for the client to see completion. The result
was the client didn't receive the certificate for verification and the
test failed.

This is exposed in Fedora 29 rawhide which has just enabled TLS 1.3 in
its GNUTLS builds.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-23 11:36:09 +01:00
Han Han
e1b75dc500 virsh: Support alias in attach-interface
Add --alias to support custom alias in virsh attach-interface.

Signed-off-by: Han Han <hhan@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-07-23 12:04:49 +02:00
Han Han
64c579b705 virsh: Support alias in attach-disk
Add --alias to support custom disk alias in virsh attach-disk.

Signed-off-by: Han Han <hhan@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-07-23 12:02:32 +02:00
John Ferlan
329f2347d2 src: Fix memory leak in virNWFilterBindingDispose
https://bugzilla.redhat.com/show_bug.cgi?id=1603025

Commit b57a9aec neglected to VIR_FREE(binding->filtername) as seen
in the following valgrind report

==6423== 17,328 bytes in 1,083 blocks are definitely lost in loss record 2,275 of 2,297
==6423==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==6423==    by 0x83B20C9: strdup (in /usr/lib64/libc-2.17.so)
==6423==    by 0x533C144: virStrdup (virstring.c:977)
==6423==    by 0x54BDD53: virGetNWFilterBinding (datatypes.c:865)
==6423==    by 0x318D633C: nwfilterBindingCreateXML (nwfilter_driver.c:767)
==6423==    by 0x54F3FC5: virNWFilterBindingCreateXML (libvirt-nwfilter.c:701)
==6423==    by 0x539CE29: virDomainConfNWFilterInstantiate (domain_nwfilter.c:116)
==6423==    by 0x31E516C2: qemuInterfaceBridgeConnect (qemu_interface.c:589)
==6423==    by 0x31D98B56: qemuBuildInterfaceCommandLine (qemu_command.c:8418)
==6423==    by 0x31D9F783: qemuBuildNetCommandLine (qemu_command.c:8673)
==6423==    by 0x31D9F783: qemuBuildCommandLine (qemu_command.c:10354)
==6423==    by 0x31DE355F: qemuProcessLaunch (qemu_process.c:6292)
==6423==    by 0x31DE7881: qemuProcessStart (qemu_process.c:6686)

and

==6423== 17,328 bytes in 1,083 blocks are definitely lost in loss record 2,276 of 2,297
==6423==    at 0x4C29BC3: malloc (vg_replace_malloc.c:299)
==6423==    by 0x83B20C9: strdup (in /usr/lib64/libc-2.17.so)
==6423==    by 0x533C144: virStrdup (virstring.c:977)
==6423==    by 0x54BDD53: virGetNWFilterBinding (datatypes.c:865)
==6423==    by 0x318D641F: nwfilterBindingLookupByPortDev (nwfilter_driver.c:678)
==6423==    by 0x54F3B63: virNWFilterBindingLookupByPortDev (libvirt-nwfilter.c:593)
==6423==    by 0x539CBC5: virDomainConfNWFilterTeardownImpl.isra.0 (domain_nwfilter.c:136)
==6423==    by 0x539CFA5: virDomainConfVMNWFilterTeardown (domain_nwfilter.c:170)
==6423==    by 0x31DE5651: qemuProcessStop (qemu_process.c:6912)
==6423==    by 0x31E37974: qemuDomainDestroyFlags (qemu_driver.c:2229)
==6423==    by 0x54C24BB: virDomainDestroy (libvirt-domain.c:475)
==6423==    by 0x1589A2: remoteDispatchDomainDestroy (remote_daemon_dispatch_stubs.h:4827)
==6423==    by 0x1589A2: remoteDispatchDomainDestroyHelper (remote_daemon_dispatch_stubs.h:4803)

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-21 09:23:54 -04:00
Marc Hartmayer
648308a287 rpc: Fix name of include guard
The include guard should match the file name and comment.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-07-21 07:46:45 -04:00
Marc Hartmayer
6ec39eddf7 virt-admin: Fix two error messages
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-07-21 07:46:45 -04:00
Marc Hartmayer
71e4d4a2a1 daemon: Raise an error if 'max_workers' < 1 in libvirtd.conf
Hypervisor drivers (e.g. QEMU) assume that they run in a separate
thread from the main event loop thread otherwise deadlocks can
occur. Therefore let's report an error if max_workers < 1 is set in
the libvirtd configuration file.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-07-21 07:46:45 -04:00
Marc Hartmayer
46d258d1fd virThreadPool: Prevent switching between zero and non-zero maxWorkers
...since maxWorkers=0 is only intended for virtlockd or virlogd which
must not be multithreaded.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-07-21 07:46:45 -04:00
Marc Hartmayer
45e00c7f2d rpc: Fix deadlock if there is no worker pool available
@srv must be unlocked for the call virNetServerProcessMsg otherwise a
deadlock can occur.

Since the pointer 'srv->workers' will never be changed after
initialization and the thread pool has it's own locking we can release
the lock of 'srv' earlier. This also fixes the deadlock.

Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-07-21 07:46:42 -04:00
Peter Krempa
80250f70c5 qemu: Replace qemuDomainDiskSourceDiffers by virStorageSourceIsSameLocation
Now that we have a saner replacement for checking if the disk source is
the same use it instead of formatting qemu command-line chunks.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:38 +02:00
Peter Krempa
3dfcd17c9d utils: storage: Add helper for checking if storage source is the same
To allow checking whether a storage source points to the same location
add a helper which checks the relevant fields. This will allow replacing
a similar check done by formatting the command line arguments for
qemu-like syntax.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:38 +02:00
Peter Krempa
dbf990fd31 qemu: monitor: Split out code to gather data from 'query-block'
Extract the code for future reuse.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:38 +02:00
Peter Krempa
8d9ca6cdb3 qemu: json: Extract gathering of block statistics
The code is useful also when gathering statistics per node name, so
extract it to a separate functions.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:38 +02:00
Peter Krempa
50edca1331 qemu: monitor: Add the 'query-nodes' argument for query-blockstats
The 'query-blockstats' command does not return statistics for the
explicitly named nodes unless the new argument is specified. Add
infrastrucuture that will allow us to use the new approach if desired.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:38 +02:00
Peter Krempa
f78033c4f2 qemu: command: use qemuDomainDiskGetBackendAlias in commandline building
Use the proper backend for the block device both when using -drive and
when -blockdev will be used for disk drives and floppy disks.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:38 +02:00
Peter Krempa
8abbc72bd2 qemu: domain: Add helper for getting the disk backend alias
The disk backend alias was historically the alias of the -drive backing
the storage. For setups with -blockdev this will become more complex as
it will depend on other configs and generally will differ.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:41:33 +02:00
Peter Krempa
b05a48c0d2 qemu: domain: Move out clearing of backing chain in qemuDomainDetermineDiskChain
In some cases backing chain needs to be cleared prior to re-detection.
Move this step out of qemuDomainDetermineDiskChain as only certain
places need it and the function itself is able to skip to the end of the
chain to perform detection.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:33:20 +02:00
Peter Krempa
055c918b37 qemu: driver: Reuse qemuDomainBlocksStatsGather in qemuDomainGetBlockInfo
Allow updating capacity for the block devices returned by
qemuDomainBlocksStatsGather and replace the open-coded call to
qemuMonitorGetAllBlockStatsInfo by the helper.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 15:33:20 +02:00
Peter Krempa
4a0835364e utils: storage: Add copying of PR definition to virStorageSource
Despite the warning that virStorageSourceCopy needs to be populated on
additions to the structure commit 687730540e neglected to implement the
copy function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 14:40:59 +02:00
Peter Krempa
4fbe2295db qemu: hotplug: Add/remove managed PR objects on media change
When changing cdrom media we did not handle the managed PR objects thus
we'd either have a stale PR object left behind or the media change would
fail.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 14:23:09 +02:00
Peter Krempa
83fe11e950 qemu: hotplug: Make qemuHotplugWaitForTrayEject reusable
Remove the issue of the monitor command to the caller so that the
function can be used with the modern approach.

Additionally improve the error message.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 14:23:09 +02:00
Peter Krempa
22480cf950 qemu: hotplug: Extract legacy disk media changing bits
Prepare for the -blockdev implementation of ejectable media changing by
splitting up the old bits.

Additionally since both callers make sure that the device is a cdrom or
floppy the check is no longer necessary.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 14:23:09 +02:00
Peter Krempa
36e9b1ec50 qemu: hotplug: Refactor/simplify PR managed addition to VM
Similarly to qemuDomainDiskRemoveManagedPR make it enter monitor on
its own so that it can be reused. Future users will be in the snapshot
code and in removable media change code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 14:23:09 +02:00
Peter Krempa
8498a1e222 qemu: hotplug: Simplify removal of managed PR infrastructure on unplug
Extract the (possible) removal of the PR backend and daemon into a
separate helper which enters monitor on its own. This simplifies the
code and allows reuse of this function in the future e.g. for blockjobs
where removing a image with PR may result into PR not being necessary.

Since the PR is not used often the overhead of entering monitor again
should be negligible.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-07-20 14:23:09 +02:00