Commit Graph

8569 Commits

Author SHA1 Message Date
Marc-André Lureau
dd428d4798 conf: add missing break in virDomainAuditRedirdev
Also initialize to NULL a few variables that might get
free before being set.
2011-09-14 15:30:32 -06:00
Eric Blake
247726bf38 network: add missing exports
Commit c246b025 added new functions, but forgot to export them,
resulting in a build failure when using modules.

* src/libvirt_private.syms (network.h): Export new functions.
2011-09-14 11:55:17 -06:00
Eric Blake
f2fc1eee4c snapshot: ABI stability must include memory sizing
Commit 973fcd8f introduced the ability for qemu to reject snapshot
reversion on an ABI incompatibility; but the very example that was
first proposed on-list[1] as a demonstration of an ABI incompatibility,
namely that of changing the max memory allocation, was not being
checked for, resulting in a cryptic failure when running with larger
max mem than what the snapshot was created with:
error: operation failed: Error -22 while loading VM state

This commit merely protects the three variables within mem that are
referenced by qemu_command.c, rather than all 7 (the other 4 variables
affect cgroup handling, but as far as I can tell, have no visible effect
to the qemu guest).  This also affects migration and save file handling,
which are other places where we perform ABI compatibility checks.

[1] https://www.redhat.com/archives/libvir-list/2010-December/msg00331.html

* src/conf/domain_conf.c (virDomainDefCheckABIStability): Add
memory sizing checks.
2011-09-14 09:56:30 -06:00
Eric Blake
72f865dd23 maint: ignore generated files
* .gitignore: Exempt recently added generated files.
2011-09-14 09:30:33 -06:00
Peter Krempa
b998f1f77c xml: Clean up rest of virtual XML document names for XML strings
Commit 498d783 cleans up some of virtual file names for parsing strings
in memory. This patch cleans up (hopefuly) the rest forgotten by the
first patch.

This patch also changes all of the previously modified "filenames" to
valid URI's replacing spaces for underscores.

Changes to v1:
- Replace all spaces for underscores, so that the strings form valid
  URI's
- Replace spaces in places changed by commit 498d783
2011-09-14 09:09:04 -06:00
Daniel Veillard
9d0ae85088 Remove two references to files not generated
This was breaking "make dist"
2011-09-14 22:57:46 +08:00
Peter Krempa
49ce282a6d make: Fix 'make syntax-check' failing.
Commit 2a0d75e5 added file python/libvirt-qemu-override.c that contains
code that does not pass "make syntax-check". This patch adds an
exception for this file and the check.

prohibit_always_true_header_tests
python/libvirt-qemu-override.c:17:#undef HAVE_PTHREAD_H
maint.mk: do not test the above HAVE_<header>_H symbol(s);
  with the corresponding gnulib module, they are always true
make: *** [sc_prohibit_always_true_header_tests] Error 1
2011-09-14 08:35:25 -06:00
Osier Yang
8918fc8edf qemu_api: Update libvirt spec file 2011-09-14 11:39:02 +08:00
Osier Yang
477d240778 qemu_api: Update Makefile to generate libvirtmod_qemu lib 2011-09-14 11:38:59 +08:00
Osier Yang
9eba0d2591 qemu_api: Update Py binding generator to generate files for QEMU APIs
It will generate:
  libvirt-qemu.py
  libvirt-qemu.h
  libvirt-qemu.c
  libvirt-qemu-export.c
2011-09-14 11:38:55 +08:00
Osier Yang
2a0d75e5ee qemu_api: Add override XML and C files for QEMU APIs
There is only one function (virDomainQemuMonitorCommand) need to
be hand-craft.
2011-09-14 11:38:51 +08:00
Osier Yang
4e53546911 qemu_api: Add comments for API virDomainQemuMonitorCommand
And fix argument @pid's type of virDomainQemuAttach.
2011-09-14 11:38:47 +08:00
Osier Yang
60290c84ad qemu_api: Update Makefile for subdir docs 2011-09-14 11:38:39 +08:00
Osier Yang
c5edc92071 qemu_api: Modify apibuild.py to generate docs for QEMU APIs
The generated docs are: libvirt-qemu-api.xml, libvirt-qemu-refs.xml
2011-09-14 11:36:10 +08:00
Peter Krempa
799912fa05 virsh: Use old API if remote libvirtd does not support new
Commit ffe28ab74b introduced regression
while communicating with older libvirtd command 'domblkstat' used the new
API and did not check for VIR_ERR_RPC error code signalling the remote
server does not support this API and did not fall back to older API.
Thereafter 'domblkstat' ended with "error: unknown procedure: 243".
2011-09-13 16:55:04 -06:00
Guannan Ren
011eeb4130 snapshot: fix double free of qemuImgBinary
Regression introduced in commit 3881a470, due to an improper rebase
of a cleanup written beforehand but only applied after a rebased of
a refactoring that created a new function in commit 25fb3ef.

Also avoids passing NULL to printf %s.

* src/qemu/qemu_driver.c: In qemuDomainSnapshotForEachQcow2()
it free up the memory of qemu_driver->qemuImgBinary in the
cleanup tag which leads to the garbage value of qemuImgBinary
in qemu_driver struct and libvirtd crash when running
"virsh snapshot-create" command a second time.

Signed-off-by: Eric Blake <eblake@redhat.com>
2011-09-13 09:11:11 -06:00
Daniel Veillard
7f2498efe4 Do not log invalid operations in libvirtd logs
This is a bit painful for example when starting virt-manager
it tends to clutter libvirtd.log with invalid operation on cpu pinning
for defined but not running domains. A priori those kind of errors
don't indicate an error when executing the command but on a precondition
for running the API, and honnestly while the application should report
it, logging it as an error in libvirtd.log is not really useful,

   Related bug: https://bugzilla.redhat.com/show_bug.cgi?id=590807

* daemon/libvirtd.c: extend daemonErrorLogFilter() to filter out
   errors of type VIR_ERR_OPERATION_INVALID
2011-09-13 18:24:13 +08:00
Michal Privoznik
afc984af2e virnetsocket: Pass KRB5CCNAME env variable
So we can allow GSSAPI authentication for ssh.

Signed-off-by: Matthias Witte <witte@netzquadrat.de>
2011-09-09 15:59:26 +02:00
Michal Privoznik
c9b37fee25 selinux: Detect virt_use_nfs boolean set
If we fail setting label on a file and this file is on NFS share,
it is wise to advise user to set virt_use_nfs selinux boolean
variable.
2011-09-09 09:32:59 +02:00
Philipp Hahn
b14e7d2a16 Fix URL-escaping for domainDefine
'+' in strings get translated to ' ' when editing domains.
While xenDaemonDomainCreateXML() did URL-escape the sexpr,
xenDaemonDomainDefineXML() did not.

Remove the explicit urlencode() in xenDaemonDomainCreateXML() and add
the direct encoding calls to xend_op_ext() because it calls xend_post()
which uses "Content-Type: application/x-www-form-urlencoded". According
to <http://www.w3.org/TR/html4/interact/forms.html#h-17.13.4.1> this
requires all parameters to be url-encoded as specified in rfc1738.

Notice: virBufferAsprintf(..., "%s=%s", ...) is again replaced by three
calls to virBufferURIEncodeString() and virBufferAddChar() because '='
is a "reserved" character, which would get escaped by
virBufferURIEncodeString(), which - by the way - escapes anything not
c_isalnum().

Signed-off-by: Philipp Hahn <hahn@univention.de>
2011-09-09 15:18:39 +08:00
Peter Krempa
498d783387 xml: Change virtual file names of xml documents parsed in memory
While parsing XML strings from memory, the previous convention in
libvirt was to set the virtual file name to "domain.xml" or something
similar. This could potentialy trick the user into looking for a file
named domain.xml on the disk in an attempt to fix the error.

This patch changes these filenames to something that can't be as easily
confused for a valid filename.

Examples of error messages:
---------------------------
Error while loading file from disk:

15:07:59.015: 527: error : catchXMLError:709 : /path/to/domain.xml:1: StartTag: invalid element name
<domain type='kvm'><
--------------------^

Error while parsing definition in memory:

15:08:43.581: 525: error : catchXMLError:709 : (domain definition):2: error parsing attribute name
  <name>vm1</name>
--^
2011-09-08 17:20:33 +01:00
Eric Blake
2acd4a1640 snapshot: fix regression with system checkpoints
Regression introduced in commit d6f6b2d194.  Running
'virsh snapshot-create dom' would mistakenly report that
disks can only be specified for disk snapshots.

* src/conf/domain_conf.c (virDomainSnapshotDefParseString): Only
give error about no disk support when <disk> was found.
2011-09-08 14:51:48 +01:00
Eric Blake
ae2bee4c5c maint: update to latest gnulib
* .gnulib: Update to latest.
2011-09-08 14:36:46 +01:00
Eric Blake
a00c37f2f9 snapshot: use new API for less work
This has the added benefit of making 'snapshot-create dom --no-metadata'
now able to tell you the name of the just-generated snapshot.

* tools/virsh.c (vshSnapshotCreate, cmdSnapshotCurrent): Don't get
XML just for name.
2011-09-08 14:25:30 +01:00
Eric Blake
6c14439e51 snapshot: new APIs for inspecting snapshot object
These functions access internals of the opaque object, and do
not need any rpc counterpart.  It could be argued that we should
have provided these when snapshot objects were first introduced,
since all the other vir*Ptr objects have at least a GetName accessor.

* include/libvirt/libvirt.h.in (virDomainSnapshotGetName)
(virDomainSnapshotGetDomain, virDomainSnapshotGetConnect): Declare.
* src/libvirt.c (virDomainSnapshotGetName)
(virDomainSnapshotGetDomain, virDomainSnapshotGetConnect): New
functions.
* src/libvirt_public.syms: Export them.
2011-09-08 13:15:13 +01:00
Soren Hansen
9c7283166f Don't treat pci_system_init failure as fatal if no PCI bus is present
Xen PV domU's have no PCI bus. node_device_udev.c calls pci_system_init
which looks for /sys/bus/pci. If it does not find /sys/bus/pci (which it
won't in a Xen PV domU) it returns unsuccesfully (ENOENT), which libvirt
considers fatal. This makes libvirt unusable in this environment, even
though there are plenty of valid virtualisation options that work
there (LXC, UML, and QEmu spring to mind)

https://bugzilla.redhat.com/show_bug.cgi?id=709471

Signed-off-by: Soren Hansen <soren@linux2go.dk>
2011-09-08 11:36:18 +01:00
Alex Jia
9acaca7c24 doc: fix incorrect option in send-key
* tools/virsh.pod: fix a option typo of send-key section.

Signed-off-by: Alex Jia <ajia@redhat.com>
2011-09-08 11:13:34 +01:00
Alex Jia
07331bba6d virsh: fix typo in opts_send_key
* tools/virsh.c: millseconds should be milliseconds in opts_send_key.

Signed-off-by: Alex Jia <ajia@redhat.com>
2011-09-08 11:11:09 +01:00
Alex Jia
db8ffc2dfb rpc: avoid memory leak on virNetTLSContextValidCertificate
* src/rpc/virnettlscontext.c: fix memory leak on
  virNetTLSContextValidCertificate.

* Detected in valgrind run:

==25667==
==25667== 6,085 (44 direct, 6,041 indirect) bytes in 1 blocks are definitely
lost in loss record 326 of 351
==25667==    at 0x4005447: calloc (vg_replace_malloc.c:467)
==25667==    by 0x4F2791F3: _asn1_add_node_only (structure.c:53)
==25667==    by 0x4F27997A: _asn1_copy_structure3 (structure.c:421)
==25667==    by 0x4F276A50: _asn1_append_sequence_set (element.c:144)
==25667==    by 0x4F2743FF: asn1_der_decoding (decoding.c:1194)
==25667==    by 0x4F22B9CC: gnutls_x509_crt_import (x509.c:229)
==25667==    by 0x805274B: virNetTLSContextCheckCertificate
(virnettlscontext.c:1009)
==25667==    by 0x804DE32: testTLSSessionInit (virnettlscontexttest.c:693)
==25667==    by 0x804F14D: virtTestRun (testutils.c:140)
==25667==
==25667== 23,188 (88 direct, 23,100 indirect) bytes in 11 blocks are definitely
lost in loss record 346 of 351
==25667==    at 0x4005447: calloc (vg_replace_malloc.c:467)
==25667==    by 0x4F22B841: gnutls_x509_crt_init (x509.c:50)
==25667==    by 0x805272B: virNetTLSContextCheckCertificate
(virnettlscontext.c:1003)
==25667==    by 0x804DDD1: testTLSSessionInit (virnettlscontexttest.c:673)
==25667==    by 0x804F14D: virtTestRun (testutils.c:140)

* How to reproduce?
% cd libvirt && ./configure && make && make -C tests valgrind
or
% valgrind -v --leak-check=full ./tests/virnettlscontexttest

Signed-off-by: Alex Jia <ajia@redhat.com>
2011-09-08 11:06:39 +01:00
Alex Jia
3a89819de8 tests: avoid memory leak on testTLSSessionInit
* tests/virnettlscontexttest: fix memory leak on virnettlscontext test case.

* Detected in valgrind run:

==25667==
==25667== 86,651 (34,680 direct, 51,971 indirect) bytes in 10 blocks are
definitely lost in loss record 350 of 351
==25667==    at 0x4005447: calloc (vg_replace_malloc.c:467)
==25667==    by 0x4F1F515D: gnutls_init (gnutls_state.c:270)
==25667==    by 0x8053432: virNetTLSSessionNew (virnettlscontext.c:1181)
==25667==    by 0x804DD24: testTLSSessionInit (virnettlscontexttest.c:624)
==25667==    by 0x804F14D: virtTestRun (testutils.c:140)
==25667==
==25667== 100,578 (38,148 direct, 62,430 indirect) bytes in 11 blocks are
definitely lost in loss record 351 of 351
==25667==    at 0x4005447: calloc (vg_replace_malloc.c:467)
==25667==    by 0x4F1F515D: gnutls_init (gnutls_state.c:270)
==25667==    by 0x8053432: virNetTLSSessionNew (virnettlscontext.c:1181)
==25667==    by 0x804DD3C: testTLSSessionInit (virnettlscontexttest.c:625)
==25667==    by 0x804F14D: virtTestRun (testutils.c:140)

* How to reproduce?
% cd libvirt && ./configure && make && make -C tests valgrind
or
% valgrind -v --leak-check=full ./tests/virnettlscontexttest

Signed-off-by: Alex Jia <ajia@redhat.com>
2011-09-08 11:03:34 +01:00
Alex Jia
4b4e4a69a8 libxl: avoid a dereference of a null pointer
Variable 'l_disk' initialized to a null pointer value, control jumps to 'case
VIR_DOMAIN_DISK_DEVICE_DISK and then taking false branch, Within the expansion
of the macro 'libxlError': Field access results in a dereference of a null
pointer (loaded from variable 'l_disk').

* src/libxl/libxl_driver.c: Field access results in a dereference of a null
  pointer (loaded from variable 'l_disk')

Signed-off-by: Alex Jia <ajia@redhat.com>
2011-09-08 11:00:30 +01:00
Eric Blake
6977fd95bf blockinfo: fix qemu regression in handling disk name
Regression introduced in commit 89b6284fd, due to an incorrect
conversion to the new means of converting disk names back to
the correct object.

* src/qemu/qemu_driver.c (qemuDomainGetBlockInfo): Avoid NULL deref.
2011-09-08 10:52:43 +01:00
Matthias Bolte
4d3d3e475f esx: Fix managed object lookup with optional occurrence
Exit early if managed object is not found, instead of dereferencing
a NULL pointer and triggering a segfault.
2011-09-08 10:36:48 +02:00
Michal Privoznik
d1a366be05 Threadpool: Initialize new dynamic workers
Although we were initializing worker threads during pool creating,
we missed this during virThreadPoolSendJob. This bug led to segmenation
fault as worker thread free() given argument.
2011-09-07 14:23:26 +02:00
Matthias Bolte
a6e2ef732d mingw: Don't use interface as an identifier
Because it's a define used in MSCOM and its usage as
identifier results in a compile error.
2011-09-06 21:34:05 +02:00
Peter Krempa
dc675f3789 link-state: virsh: Add wrapper commands for changing link state
Two new commands are added to virsh that wrap usage of
virDomainUpdateDeviceFlags for changing link state of domain's network
interfaces. These wrappers extract network devices's xml configuration
and modify the link state for easy manipulation from an user's perspective.

 - domif-setlink - set link state of a domains virtual network interface
 - domif-getlink - get link state

* tools/virsh.c   - Add functionality to virsh
* tools/virsh.pod - Manpage documentation
2011-09-06 16:31:59 +08:00
Peter Krempa
e0a07bb1f2 link-state: qemu: Add net intf modification to virUpdateDeviceFlags
This patch enables modifying network device configuration using the
virUpdateDeviceFlags API method. Matching of devices is accomplished
using MAC addresses.

While updating live configuration of a running domain, the user is
allowed only to change link state of the interface. Additional
modifications may be added later. For now the code checks for
unsupported changes and thereafter changes the link state, if
applicable.

When updating persistent configuration of guest's network interface the
whole configuration (except for the MAC address) may be modified and
is stored for the next startup.

* src/qemu/qemu_driver.c   - Add dispatching of virUpdateDevice for
                             network devices update (live/config)
* src/qemu/qemu_hotplug.c  - add setting of initial link state on live
                             device addition
                           - add function to change network device
                             configuration. By now it supports only
                             changing of link state
* src/qemu/qemu_hotplug.h  - Headers to above functions
* src/qemu/qemu_process.c  - set link states before virtual machine
                             start. Qemu does not support setting of
                             this on the command line.
2011-09-06 16:23:47 +08:00
Peter Krempa
8277c15151 link-state: qemu: Add monitor handling for link state modification
This patch adds handlers for modification of guest's interface
link state. Both HMP and QMP commands are supported, but as the
link state functionality is from the beginning supported in QMP
the HMP code will probably never be used.
2011-09-06 16:18:57 +08:00
Peter Krempa
edd1295e1d link-state: conf: Add element to XML for controling link state
A new element is introduced to XML that allows to control
state of virtual network interfaces in hypervisors.

Live modification of the link state allows networking tools
propagate topology changes to guest OS or testing of
scenarios in complex (virtual) networks.

This patch adds elements to XML grammars and parsing and generating
code.
2011-09-06 16:08:15 +08:00
Peter Krempa
c246b02586 link-state: util: Add equality comparison functions for structures
This patch adds functions to compare structures containing network
device configuration for equality. They serve for the purpose of
disallowing unsupported changes to live network devices.
2011-09-06 16:05:53 +08:00
Peter Krempa
9fd3bb7a88 XML: Improve XML parsing error messages
This patch modifies error handling function for the XML parser provided
by libxml2.

Originaly only a line number and error message were logged. With this
new error handler function, the user is provided with a more complex
description of the parsing error.

Context of the error is printed in libXML2 style and filename of the
file, that caused the error is printed. Example of an parse error:

13:41:36.262: 16032: error : catchXMLError:706 :
/etc/libvirt/qemu/rh_bad.xml:58: Opening and ending tag mismatch: name
line 2 and domain
</domain>
---------^

Context of the error gives the user hints that may help to quickly
locate a corrupt xml file.

fixes BZs:
----------
Bug 708735 - [RFE] Show column and line on XML parsing error
https://bugzilla.redhat.com/show_bug.cgi?id=708735

Bug 726771 - libvirt does not specify problem file if persistent xml is
invalid
https://bugzilla.redhat.com/show_bug.cgi?id=726771
2011-09-06 15:48:22 +08:00
Marc-André Lureau
2e0dbaad9b redirdev: allows to specify device address
It is important to be able to attach USB redirected devices to a
particular controller (one that supports USB2 for instance).
Without this patch, only the default bus was used.

     <redirdev bus='usb' type='spicevmc'>
       <address type='usb' bus='0' port='4'/>
     </redirdev>
2011-09-06 15:12:52 +08:00
Daniel Veillard
59e22b7258 latency: fix make check for remote protocol structs and numbers 2011-09-06 15:11:44 +08:00
Osier Yang
ffe28ab74b latency: Update virsh command domblkstat to use new API
The modified function fallbacks to use virDomainBlockStats if
virDomainBlockStatsFlags is not supported by the hypervisor driver.
If the new API is supported, it will be invoked instead of the
old API.
2011-09-06 12:03:05 +08:00
Osier Yang
f4c331a744 latency: Expose the new API for Python binding 2011-09-06 12:02:51 +08:00
Osier Yang
ee0d8c3b5c latency: Implemente internal API for qemu driver 2011-09-06 12:02:51 +08:00
Osier Yang
2f58ba8996 latency: Update monitor functions for new latency fields
The mainly changes are:

1) Update qemuMonitorGetBlockStatsInfo and it's children (Text/JSON)
   functions to return the value of new latency fields.
2) Add new function qemuMonitorGetBlockStatsParamsNumber, which is
   to count how many parameters the underlying QEMU supports.
3) Update virDomainBlockStats in src/qemu/qemu_driver.c to be
   compatible with the changes by 1).
2011-09-06 12:02:51 +08:00
Osier Yang
efa7fc9f75 latency: Wire up the remote protocol 2011-09-06 12:02:51 +08:00
Osier Yang
1f80c3eb86 latency: Implemente the public API 2011-09-06 12:02:51 +08:00
Osier Yang
1c622a3d53 latency: Define the internal driver callback 2011-09-06 12:02:51 +08:00