Commit Graph

28067 Commits

Author SHA1 Message Date
Cédric Bosdonnat
259a2cc34e apparmor: fix virt-aa-helper profile
Fix rule introduced by commit 0f33025a:
  * to handle /var/run not being a symlink to /run
  * to be properly parsed: missing comma at the end.
2018-01-03 17:33:28 +01:00
Julio Faracco
d0307a9a76 storage: Fixing missing 'backingStore' tag from volume XML dumps.
After commit a693fdb 'vol-dumpxml' missed the ability to show backingStore
information. This commit adds a volume type for files that fixes this
problem.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1529663

Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
2018-01-03 16:04:24 +01:00
Michal Privoznik
6534b3c4bb qemuBuildMemPathStr: Forbid memoryBacking/access for non-numa case
https://bugzilla.redhat.com/show_bug.cgi?id=1448149

If a domain has no numa nodes, that means we don't put any
memory-backend-file onto the qemu command line. That in turn
means we can't set access='shared'. Therefore, we should produce
an error instead of ignoring the setting silently.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-01-03 15:53:00 +01:00
Peter Krempa
f10bb3347b qemu: monitor: Decrease logging verbosity
The PROBE macro used in qemuMonitorIOProcess and the VIR_DEBUG message
in qemuMonitorJSONIOProcess create a lot of logging churn when debug
logging is enabled during monitor communication.

The messages logged from the PROBE macro are rather useless since they
are reporting the partial state of receiving the reply from qemu. The
actual full reply is still logged in qemuMonitorJSONIOProcessLine once
the full message is received.
2018-01-03 15:21:30 +01:00
Peter Krempa
f06e488d54 util: probe: Add quiet versions of the "PROBE" macro
PROBE macro adds a logging entry, when used in places seeing a lot of
traffic this can cause a significant slowdown.
2018-01-03 15:21:06 +01:00
Chen Hanxiao
c1a6e2fb43 util: virstring: Tweak a few more descriptions.
There are a few more description-related issues that commit @9026d115
forgot to address.

Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
2018-01-03 12:42:53 +01:00
Cédric Bosdonnat
faec195861 lxc: set a hostname based on the container name
Set a transient hostname on containers. The hostname is computed from
the container name, only keeping the valid characters [a-zA-Z0-9-] in it.
This filtering is based on RFC 1123 and allows a digit to start the
hostname.
2018-01-03 10:58:16 +01:00
Cédric Bosdonnat
b475a91b77 Add virStringFilterChars() string utility
Add a function to filter a string based on a list of valid characters.
2018-01-03 10:58:16 +01:00
Chen Hanxiao
9026d1152c util: fix the description of virStringSearch
There's no argument named @result, use @matches instead.

Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
2018-01-03 09:54:14 +01:00
Christian Ehrhardt
8f882cf36e apparmor: allow unix stream for p2p migrations
On live migration with --p2p like:
 $ virsh migrate --live --p2p kvmguest-bionic-normal \
       qemu+ssh://10.6.221.80/system

We hit an apparmor deny like:
  apparmor="DENIED" operation="file_inherit"
  profile="/usr/sbin/libvirtd" pid=23477 comm="ssh" family="unix"
  sock_type="stream" protocol=0 requested_mask="send receive"
  denied_mask="send" addr=none peer_addr=none peer="unconfined"

The rule is not perfect, but can't be restricted further at the moment
(new upstream kernel features needed). For now the lack of a profile on the
peer as well as comm not being a conditional on rules do not allow to filter
further.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
2018-01-03 09:45:21 +01:00
Michal Privoznik
4ce06ba6f4 src: Export virDomainMemoryAccessType*String
These are already exported at header file level because of
VIR_ENUM_DECL being in numa_conf.h. However, they are not being
exported at object level because of missing libvirt_private.syms
record.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-01-03 07:02:15 +01:00
Andrea Bolognani
8bcceaa924 docs: Fix serial console configuration examples
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-01-02 15:51:59 +01:00
Andrea Bolognani
a38aa340fe qemu: Enforce vCPU hotplug granularity constraints
QEMU 2.7 and newer don't allow guests to start unless the initial
vCPUs count is a multiple of the vCPU hotplug granularity, so
validate it and report an error if needed.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1283700

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-01-02 14:22:06 +01:00
Andrea Bolognani
54acfac4a5 qemu: Invert condition nesting in qemuDomainDefValidate()
While at the moment we're only performing a single check that is
connected to vCPU hotplugging, we're going to introduce a second
one soon. Move the topology check underneath the capability check
to make that easier; since, after this change, the 'topologycpus'
variable doesn't need to have function scope, we move its
declaration to the inner scope as well.

The comments around the check are modified in order to explain
the different QEMU versions involved.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-01-02 14:22:05 +01:00
Pavel Hrdina
bbf6573e94 conf: honor maxnames in nodeListDevices API
Introduced by commit <4ae9dbea99c>.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1528572

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-01-02 10:28:09 +01:00
John Ferlan
715b321da1 qemu: Move TCP and haveTLS checks into qemuDomainDelChardevTLSObjects
Similar to qemuDomainAddChardevTLSObjects let's move the chardev
source must be TCP and it has the @haveTLS flag set checks before
trying to delete the TLS objects.

For the Chr device this represents no change; however, for RNG device
this is an additionaly check that was missed in commit id '68808516'.
Before adding the objects, TCP and haveTLS are checked.
2017-12-21 10:05:31 -05:00
John Ferlan
10dcdfa32a qemu: Introduce qemuDomainDelChardevTLSObjects
Let's make a comment deletion helper similar to the Add helper
that can be called after the ExitMonitor.

The modify qemuDomainRemoveChrDevice and qemuDomainRemoveRNGDevice
to call the helper instead of inlining the copy and pasted code.
2017-12-21 10:05:31 -05:00
Cédric Bosdonnat
2089ab2112 netserver: close clients before stopping all drivers
So far clients were closed when disposing the daemon, after the state
driver cleanup. This was leading to libvirtd crashing at shutdown due
to missing driver.

Moving the client close in virNetServerClose() fixes the problem.

Reviewed-by: Erik Skultety <eskultet@redhat.com>
2017-12-21 13:17:26 +01:00
Cédric Bosdonnat
0f33025a43 virt-aa-helper: handle more disk images
virt-aa-helper needs read access to the disk image to resolve symlinks
and add the proper rules to the profile. Its profile whitelists a few
common paths, but users can place their images anywhere.

This commit helps users allowing access to their images by adding their
own rules in apparmor.d/local/usr.lib.libvirt.virt-aa-helper.

This commit also adds rules to allow reading files named:
  - *.raw as this is a rather common disk image extension
  - /run/libvirt/**[vd]d[a-z] as these are used by virt-sandbox
2017-12-20 11:05:54 +01:00
Daniel P. Berrange
291f68b5da autogen.sh: tell user the correct make command
When autogen.sh finishes it helpfully prints

  "Now type 'make' to compile libvirt."

which is fine if on a host with GNU make, but on *BSD running
'make' will end in tears. We should tell users to run 'gmake'
on these platforms. If 'gmake' doesn't exist then we should
report an error too

  "GNU make is required to build libvirt"

Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-12-18 17:03:51 +00:00
Jim Fehlig
8599aedd43 Improve filtering of Xen domain0 in libvirt-guests
The list_guests function in libvirt-guests uses 'grep -v' to filter
Xen domain0 from a list of guests. If domain0 is the only item in
the list, 'grep -v' returns 1, causing the 'stop' operation to fail
when action is 'suspend'. Improve the filtering by using sed to remove
domain0 from the list of guests.
2017-12-18 09:24:13 -07:00
Erik Skultety
a8582e3656 admin: Use the connection to determine a client is connected readonly
Prior to this change, we relied solely on the inherited readonly
attribute of a service's socket. This only worked for our UNIX sockets
(and only to some degree), but doesn't work for TCP sockets which are RW
by default, but such connections support RO as well. This patch forces
an update on the client object once we have established a connection to
reflect the nature of the connection itself rather than relying on the
underlying socket's attributes.
Clients connected to the admin server have always been connected as RW
only.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1524399
Signed-off-by: Erik Skultety <eskultet@redhat.com>
2017-12-18 08:42:29 +01:00
Jim Fehlig
69ed99c786 libxl: mark domain0 as persistent
A Xen domain0 is better described as a persistent domain. Mark it
as such during intialization.
2017-12-15 15:25:01 -07:00
Andrea Bolognani
f131dacf68 cfg.mk: Simplify backslash alignment check
The use of [[:blank:]] was intended to cover tabs as well, but
it couldn't possibly work in its current form, so the regex was
tweaked in d09429abe8.

With the original reason for using [[:blank:]] now gone, we can
replace its usage with plain spaces. A comment about the purpose
of the check is added as well.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-12-15 13:38:39 +01:00
Laine Stump
16a9a28129 qemu: log error on attempts to set filterref on an OVS-connected interface
ebtables/iptables processing is skipped for any interface connected to
Open vSwitch (they have their own packet filtering), likewise for
midonet (according to
http://blog.midokura.com/2016/04/midonet-rule-chains), but libvirt
would allow adding a <filterref> to interfaces connected in these
ways, so the user might mistakenly believe they were being protected.

This patch checks for a non-NULL <virtualport> element for an
interface (or its network) and logs an error if <virtualport> and
<filterref> are both present. This could cause some previously working
domains to no longer start, but that's really the whole point of this
patch - to warn people that their filterref isn't protecting them as
they might have thought.

I don't bother checking this during post-parse validation, because
such a check would be incomplete - it's possible that a network would
have a <virtualport> that would be applied to an interface, and you
can't know that until the domain is started.

Resolves: https://bugzilla.redhat.com/1502754
2017-12-14 14:31:28 -05:00
Laine Stump
b21163bd11 qemu: delete exist bandwidth restrictions when they are removed from config
When the <bandwidth> of an interface is changed with update-device,
the old settings are cleared with tc, then new settings added with
tc. But if the <bandwidth has been removed, the old settings weren't
being removed, so the bandwidth restrictions would still be active on
the interface although the interface status in libvirt showed that
they had been removed.

This patch fixes it by calling virNetDevBandwidthClear() if the
"modification" to the interface bandwidth was to completely clear
it.

An alternative could have been to modify virNetDevBandwidthSet() to
always clear existing bandwith settings at the beginning of the
function (currently it short circuits in that case, doing nothing),
but that would have led to cases where virNetDevBandwidthClear() was
now being called in cases where it previously wasn't, and while many
of those cases would be NOPs, there could be cases where it would
cause an error. The way this patch works, the ...Clear() function is
only called in cases where the ...Set() function had previously been
called successfully, so the risk of regression is minimized.

  Resolves: https://bugzilla.redhat.com/1454709
2017-12-14 13:52:34 -05:00
Ján Tomko
8d51042ef8 qemu: remove input device after receiving the event
Also call qemuDomainRemoveInputDevice if we receive the
event after the Detach API ends.

Commit 67486bb failed to include this.

https://bugzilla.redhat.com/show_bug.cgi?id=1524837
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2017-12-14 16:36:03 +01:00
Peter Krempa
b3d0270c44 qemu: domain: Parse and format relPath into disk source private data
Register the helpers directly to format and parse the data.

https://bugzilla.redhat.com/show_bug.cgi?id=1523261
2017-12-14 10:29:10 +01:00
Peter Krempa
cd31709351 util: storage: Add helpers to parse and format relPath into privateData
This will be the first private piece of data that will need to be stored
in the XML for some drivers. Add helpers which will do it.
2017-12-14 10:27:30 +01:00
Peter Krempa
aed3d038a6 conf: Add infrastructure for disk source private data XML
VM drivers may need to store additional private data to the status XML
so that it can be restored after libvirtd restart. Since not everything
is needed add a callback infrastructure, where VM drivers can add only
stuff they need.

Note that the private data is formatted as a <privateData> sub-element
of the <disk> or <backingStore> <source> sub-element. This is done since
storing it out of band (in the VM private data) would require a complex
matching process to allow to put the data into correct place.
2017-12-14 10:24:36 +01:00
John Ferlan
7db2515900 docs: Fix news.xml syntax
Commit id '1241e487' used <code>&lt;interface&gt;</code> which
is not valid syntax for a <summary>.
2017-12-13 22:36:55 -05:00
Jim Fehlig
1241e487a4 news: mention multiple IP addresses support for Xen 2017-12-13 14:42:46 -07:00
John Ferlan
2114154922 util: Report error if vhost-scsi device file cannot be found
https://bugzilla.redhat.com/show_bug.cgi?id=1523564

If the vhost-scsi device file cannot be found, the generic error

    "error: An error occurred, but the cause is unknown"

is returned.  Let's add a real error message to make it clear
why the failure occurred.
2017-12-13 15:37:30 -05:00
John Ferlan
9e030093f2 util: Fix error path in virSCSIVHostOpenVhostSCSI
We cannot be sure someone initialized the passed *vhostfd and we
certainly don't want or need to be calling VIR_FORCE_CLOSE on what
probably is -1. So let's just return -1 immediately.
2017-12-13 15:37:30 -05:00
John Ferlan
10c73bf18a qemu: Need to assign PCI address to vhost-scsi
Commit id '70249927b' neglected to cover this case because the test
had taken the "shortcut" to already add the <address>; however, when
the PCI address assignment code was adjusted by commit id '70249927'
the vhost-scsi (VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI_HOST) wasn't
covered thus returning a 0 for pciFlags. So I altered the tests too
to make sure it doesn't happen again.

Previously the qemuxml2xmloutdata was a softlink to the source
qemuxml2argvdata, so I unlinked and recreated the output file to
force generation of the adddress. Without the test changes, an
address generation returns:

    libvirt: Domain Config error : internal error: Cannot automatically
    add a new PCI bus for a device with connect flags 00

if an address was supplied in the test, a restart of libvirtd or
edit of a guest would display the following opaque message:

    warning : qemuDomainCollectPCIAddress:1237 :
    qemuDomainDeviceCalculatePCIConnectFlags() thinks that the device
     with PCI address 0000:00:09.0 should not have a PCI address

where the address is related to the guest PCI address provided.
2017-12-13 15:37:30 -05:00
Marek Marczykowski-Górecki
9f8778dfca xenconfig: fix issue found by coverity in multiple IP support
virStringSplit may return NULL, so we must handle that.

Cc: John Ferlan <jferlan@redhat.com>
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
2017-12-13 15:31:55 -05:00
Marek Marczykowski-Górecki
a609389310 xenconfig: Remove unnecessary variable clear in xenMakeIPList
Remove the unnecessary clearing of address_array as VIR_ALLOC_N
initialized the array already.

Cc: John Ferlan <jferlan@redhat.com>
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
2017-12-13 15:31:51 -05:00
John Ferlan
6050affb7f qemu: Tolerate storage source private data being NULL for hotplug SCSI hostdev
Commit id 'c5c96545' neglected to validate that the srcPriv was
non-NULL before dereferencing. Similar problem to what was fixed
by commit id '8056721c' but missed during multiple rebases and
code reworks.
2017-12-13 15:16:15 -05:00
John Ferlan
052ecaee3a storage: Reduce need for using storageDriverLock
Now that the storage pools are self locking, we can reduce the number
of places that need to take the big hammer storage driver lock
2017-12-13 15:06:42 -05:00
John Ferlan
4b2e0ed6e3 storage: Convert virStoragePoolObjList to use virObjectRWLockable
Now that we have a private storage pool list, we can take the next
step and convert to using objects. In this case, we're going to use
RWLockable objects (just like every other driver) with two hash
tables for lookup by UUID or Name.

Along the way the ForEach and Search API's will be adjusted to use
the related Hash API's and the various FindBy functions altered and
augmented to allow for HashLookup w/ and w/o the pool lock already
taken.

After virStoragePoolObjRemove we will need to virObjectUnref(obj)
after to indicate the caller is "done" with it's reference. The
Unlock occurs during the Remove.

The NumOf, GetNames, and Export functions all have their own callback
functions to return the required data and the FindDuplicate code
can use the HashSearch function callbacks.
2017-12-13 15:05:10 -05:00
John Ferlan
90e65353a2 storage: Privatize virStoragePoolObjListPtr
Move the structure into virstorageobj.c.

Use the virStoragePoolObjListNew allocator to fill in the @pools for
the storage driver and test driver.
2017-12-13 14:51:30 -05:00
John Ferlan
d4f80d439e storage: Fix path check in storagePoolLookupByTargetPath
Commit id '5ab746b8' introduced the function as perhaps a copy
of storageVolLookupByPath; however, it did not use the @cleanpath
variable even though it used the virFileSanitizePath. So in essance
the only "check" being done for failure is whether it was possible
to strdup the path.

Looking at the virStoragePoolDefParseXML one will note that the
target.path is stored using the result of virFileSanitizePath.
Therefore, this function should sanitize and use the input @path
for the argument to storagePoolLookupByTargetPathCallback which
is comparing against stored target.path values.

Additionally, if there was an error we should use the proper error
of VIR_ERR_NO_STORAGE_POOL (instead of VIR_ERR_NO_STORAGE_VOL).
2017-12-13 14:51:30 -05:00
Marc Hartmayer
4199c2f221 audit: Log only an info message if audit_level < 2 and audit is not supported
Replace the error message during startup of libvirtd with an info
message if audit_level < 2 and audit is not supported by the
kernel. Audit is not supported by the current kernel if the kernel
does not have audit compiled in or if audit is disabled (e.g. by the
kernel cmdline).

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-12-13 13:42:16 +01:00
Daniel P. Berrange
fbe32b78e0 virsh: fix typo s/node filters/network filters/
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-12-12 17:41:46 +00:00
Daniel P. Berrange
917047de61 Update to latest keycodemapdb content
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-12-12 16:34:12 +00:00
Michal Privoznik
fb8c0ea892 fillQemuCaps: Don't leak machine string
==25251== 5 bytes in 1 blocks are definitely lost in loss record 7 of 81
==25251==    at 0x4C2BEDF: malloc (vg_replace_malloc.c:299)
==25251==    by 0x967E379: strdup (in /lib64/libc-2.25.so)
==25251==    by 0x5366F9F: virStrdup (virstring.c:941)
==25251==    by 0x538BF1D: virDomainCapsNew (domain_capabilities.c:121)
==25251==    by 0x10EACE: test_virDomainCapsFormat (domaincapstest.c:295)
==25251==    by 0x10FBD2: virTestRun (testutils.c:180)
==25251==    by 0x10F192: mymain (domaincapstest.c:457)
==25251==    by 0x111C7F: virTestMain (testutils.c:1119)
==25251==    by 0x10FA3C: main (domaincapstest.c:528)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-12-12 16:41:25 +01:00
Michal Privoznik
34fb67efae xenMakeIPList: Don't leak @address_array
==32171== 32 bytes in 1 blocks are definitely lost in loss record 44 of 107
==32171==    at 0x4C2DEF6: calloc (vg_replace_malloc.c:711)
==32171==    by 0x55744A9: virAllocN (viralloc.c:191)
==32171==    by 0x12CED2: xenMakeIPList (xen_common.c:1186)
==32171==    by 0x12D0BE: xenFormatNet (xen_common.c:1221)
==32171==    by 0x12F0D2: xenFormatVif (xen_common.c:1889)
==32171==    by 0x12F2B4: xenFormatConfigCommon (xen_common.c:1944)
==32171==    by 0x13BA32: xenFormatXL (xen_xl.c:1971)
==32171==    by 0x1186CA: testCompareParseXML (xlconfigtest.c:105)
==32171==    by 0x118A64: testCompareHelper (xlconfigtest.c:205)
==32171==    by 0x119E36: virTestRun (testutils.c:180)
==32171==    by 0x11970E: mymain (xlconfigtest.c:301)
==32171==    by 0x11BEE3: virTestMain (testutils.c:1119)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-12-12 16:41:20 +01:00
Michal Privoznik
747faf1149 xenParseXLVnuma: Don't leak @tmp and @token
==30399== 180 (144 direct, 36 indirect) bytes in 3 blocks are definitely lost in loss record 91 of 111
==30399==    at 0x4C2E0FF: realloc (vg_replace_malloc.c:785)
==30399==    by 0x5574572: virReallocN (viralloc.c:245)
==30399==    by 0x5574668: virExpandN (viralloc.c:294)
==30399==    by 0x55747AB: virResizeN (viralloc.c:352)
==30399==    by 0x560074D: virStringSplitCount (virstring.c:115)
==30399==    by 0x137A59: xenParseXLVnuma (xen_xl.c:442)
==30399==    by 0x13952B: xenParseXL (xen_xl.c:1064)
==30399==    by 0x11884D: testCompareFormatXML (xlconfigtest.c:152)
==30399==    by 0x118A87: testCompareHelper (xlconfigtest.c:207)
==30399==    by 0x119E36: virTestRun (testutils.c:180)
==30399==    by 0x119186: mymain (xlconfigtest.c:274)
==30399==    by 0x11BEE3: virTestMain (testutils.c:1119)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-12-12 16:41:01 +01:00
Yuri Chornoivan
ca18914e8a Fix minor typos 2017-12-12 09:13:43 +01:00
Jiri Denemark
fd754cb69c qemu: Avoid comparing size_t with -1
ncpus would be -1 on error and the cleanup for loop would not be skipped
in this case.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2017-12-11 14:56:22 +01:00