Commit Graph

290 Commits

Author SHA1 Message Date
Peter Krempa
88f3f7c390 conf: storage: Add volume feature formatter for gluster pools
Libvirt didn't output feature flags for images stored on native gluster.
Fix this trivially by adding a feature formatter callback.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1095035
2014-07-01 17:39:50 +02:00
Eric Blake
ab5178188f maint: shorten 'TypeType' function names
The VIR_ENUM_DECL/VIR_ENUM_IMPL helper macros already append 'Type'
to the enum name being converted; it looks silly to have functions
with 'TypeType' in their name.  Even though some of our enums have
to have a 'Type' suffix, the corresponding string conversion
functions do not.

* src/conf/secret_conf.h (VIR_ENUM_DECL): Rename virSecretUsageType.
* src/conf/storage_conf.h (VIR_ENUM_DECL): Rename
virStoragePoolAuthType, virStoragePoolSourceAdapterType,
virStoragePartedFsType.
* src/conf/domain_conf.c (virDomainDiskDefParseXML)
(virDomainFSDefParseXML, virDomainFSDefFormat): Update callers.
* src/conf/secret_conf.c (virSecretDefParseUsage)
(virSecretDefFormatUsage): Likewise.
* src/conf/storage_conf.c (virStoragePoolDefParseAuth)
(virStoragePoolDefParseSource, virStoragePoolSourceFormat):
Likewise.
* src/lxc/lxc_controller.c (virLXCControllerSetupLoopDevices):
Likewise.
* src/storage/storage_backend_disk.c
(virStorageBackendDiskPartFormat): Likewise.
* src/util/virstorageencryption.c (virStorageEncryptionSecretParse)
(virStorageEncryptionSecretFormat): Likewise.
* tools/virsh-secret.c (cmdSecretList): Likewise.
* src/libvirt_private.syms (secret_conf.h, storage_conf.h): Export
corrected names.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-05-16 00:22:18 -06:00
Eric Blake
6b9f40e856 conf: use virDirRead API
When reading configuration files, we were silently ignoring
directory read failures.  While unlikely, we might as well
report them.

* src/conf/domain_conf.c (virDomainObjListLoadAllConfigs): Report
readdir errors.
* src/conf/network_conf.c (virNetworkLoadAllState)
(virNetworkLoadAllConfigs): Likewise.
* src/conf/nwfilter_conf.c (virNWFilterLoadAllConfigs): Likewise.
* src/conf/storage_conf.c (virStoragePoolLoadAllConfigs):
Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-04-28 17:52:45 -06:00
Eric Blake
cce2410a27 conf: track sizes directly in source struct
One of the features of qcow2 is that a wrapper file can have
more capacity than its backing file from the guest's perspective;
what's more, sparse files make tracking allocation of both
the active and backing file worthwhile.  As such, it makes
more sense to show allocation numbers for each file in a chain,
and not just the top-level file.  This sets up the fields for
the tracking, although it does not modify XML to display any
new information.

* src/util/virstoragefile.h (_virStorageSource): Add fields.
* src/conf/storage_conf.h (_virStorageVolDef): Drop redundant
fields.
* src/storage/storage_backend.c (virStorageBackendCreateBlockFrom)
(createRawFile, virStorageBackendCreateQemuImgCmd)
(virStorageBackendCreateQcowCreate): Update clients.
* src/storage/storage_driver.c (storageVolDelete)
(storageVolCreateXML, storageVolCreateXMLFrom, storageVolResize)
(storageVolWipeInternal, storageVolGetInfo): Likewise.
* src/storage/storage_backend_fs.c (virStorageBackendProbeTarget)
(virStorageBackendFileSystemRefresh)
(virStorageBackendFileSystemVolResize)
(virStorageBackendFileSystemVolRefresh): Likewise.
* src/storage/storage_backend_logical.c
(virStorageBackendLogicalMakeVol)
(virStorageBackendLogicalCreateVol): Likewise.
* src/storage/storage_backend_scsi.c
(virStorageBackendSCSINewLun): Likewise.
* src/storage/storage_backend_mpath.c
(virStorageBackendMpathNewVol): Likewise.
* src/storage/storage_backend_rbd.c
(volStorageBackendRBDRefreshVolInfo)
(virStorageBackendRBDCreateImage): Likewise.
* src/storage/storage_backend_disk.c
(virStorageBackendDiskMakeDataVol)
(virStorageBackendDiskCreateVol): Likewise.
* src/storage/storage_backend_sheepdog.c
(virStorageBackendSheepdogBuildVol)
(virStorageBackendSheepdogParseVdiList): Likewise.
* src/storage/storage_backend_gluster.c
(virStorageBackendGlusterRefreshVol): Likewise.
* src/conf/storage_conf.c (virStorageVolDefFormat)
(virStorageVolDefParseXML): Likewise.
* src/test/test_driver.c (testOpenVolumesForPool)
(testStorageVolCreateXML, testStorageVolCreateXMLFrom)
(testStorageVolDelete, testStorageVolGetInfo): Likewise.
* src/esx/esx_storage_backend_iscsi.c (esxStorageVolGetXMLDesc):
Likewise.
* src/esx/esx_storage_backend_vmfs.c (esxStorageVolGetXMLDesc)
(esxStorageVolCreateXML): Likewise.
* src/parallels/parallels_driver.c (parallelsAddHddByVolume):
Likewise.
* src/parallels/parallels_storage.c (parallelsDiskDescParseNode)
(parallelsStorageVolDefineXML, parallelsStorageVolCreateXMLFrom)
(parallelsStorageVolDefRemove, parallelsStorageVolGetInfo):
Likewise.
* src/vbox/vbox_tmpl.c (vboxStorageVolCreateXML)
(vboxStorageVolGetXMLDesc): Likewise.
* tests/storagebackendsheepdogtest.c (test_vdi_list_parser):
Likewise.
* src/phyp/phyp_driver.c (phypStorageVolCreateXML): Likewise.
2014-04-02 06:03:00 -06:00
Eric Blake
df17611525 conf: use common struct in storage volumes
A fairly smooth transition.  And now that domain disks and
storage volumes share a common struct, it opens the doors for
a future patch to expose more details in the XML for both
objects.

* src/conf/storage_conf.h (_virStorageVolTarget): Delete.
(_virStorageVolDef): Use common type.
* src/conf/storage_conf.c (virStorageVolDefFree)
(virStorageVolTargetDefFormat): Update clients.
* src/storage/storage_backend.h: Likewise.
* src/storage/storage_backend.c
(virStorageBackendDetectBlockVolFormatFD)
(virStorageBackendUpdateVolTargetInfo)
(virStorageBackendUpdateVolTargetInfoFD): Likewise.
* src/storage/storage_backend_fs.c (virStorageBackendProbeTarget):
Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-04-02 06:03:00 -06:00
Eric Blake
dae1568c6c conf: tweak volume target struct details
Some preparatory work before consolidating storage volume
structs with the rest of virstoragefile.  Making these
changes allows a volume target to be much closer to (a
subset of) the virStorageSource struct.

Making perms be a pointer allows it to be optional if we
have a storage pool that doesn't expose permissions in a
way we can access.  It also allows future patches to
optionally expose permissions details learned about a disk
image via domain <disk> listings, rather than just
limiting it to storage volume listings.

Disk partition types was only used by internal code to
control what type of partition to create when carving up
an MS-DOS partition table storage pool (and is not used
for GPT partition tables or other storage pools).  It was
not exposed in volume XML, and as it is more closely
related to extent information of the overall block device
than it is to the <target> information describing the host
file.  Besides, if we ever decide to expose it in XML down
the road, we can move it back as needed.

* src/conf/storage_conf.h (_virStorageVolTarget): Change perms to
pointer, enhance comments.  Move partition type...
(_virStorageVolSource): ...here.
* src/conf/storage_conf.c (virStorageVolDefFree)
(virStorageVolDefParseXML, virStorageVolTargetDefFormat): Update
clients.
* src/storage/storage_backend_fs.c (createFileDir): Likewise.
* src/storage/storage_backend.c (virStorageBackendCreateBlockFrom)
(virStorageBackendCreateRaw, virStorageBackendCreateExecCommand)
(virStorageBackendUpdateVolTargetInfoFD): Likewise.
* src/storage/storage_backend_logical.c
(virStorageBackendLogicalCreateVol): Likewise.
* src/storage/storage_backend_disk.c
(virStorageBackendDiskMakeDataVol)
(virStorageBackendDiskPartTypeToCreate): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-04-02 06:03:00 -06:00
Peter Krempa
8617e8c8bb storage: pool: Fix XML indentation in pool source lookup
The <source> elements need to be indented from <sources> elements.
2014-03-31 13:47:24 +02:00
Ján Tomko
df2013fad0 Indent top-level labels by one space in src/conf/ 2014-03-25 14:58:38 +01:00
Daniel P. Berrange
2835c1e730 Add virLogSource variables to all source files
Any source file which calls the logging APIs now needs
to have a VIR_LOG_INIT("source.name") declaration at
the start of the file. This provides a static variable
of the virLogSource type.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-03-18 14:29:22 +00:00
Laine Stump
5f84543772 conf: eliminate hardcoded indent in volume/pool xml
Again completely mechanical, but a lot of lines.
2014-03-13 22:40:39 -06:00
Ján Tomko
94b57a9de0 Use size_t for ndevice in pool source definition
This allows it to be used by the VIR_*_ELEMENT macros.

Also use them for parsing the definiton and remove the redundant
freeing of 'nodeset' before jumping to the cleanup label.
2014-03-12 15:51:40 +01:00
Ján Tomko
20f0cd4ca3 Introduce virStoragePoolSourceDeviceClear
Open-coding one VIR_FREE in the test suite just doesn't seem right.
2014-03-12 15:51:40 +01:00
Michal Privoznik
2133441a07 conf: Utilize more of VIR_(APPEND|INSERT|DELETE)_ELEMENT
This fixes a possible double free. In virNetworkAssignDef() if
virBitmapNew() fails, then virNetworkObjFree(network) is called.
However, with network->def pointing to actual @def. So if caller
frees @def again, ...

Moreover, this fixes one possible memory leak too. In
virInterfaceAssignDef() if appending to the list of interfaces
fails, we ought to call virInterfaceObjFree() instead of bare
VIR_FREE().

Although, in order to do that some array size variables needs
to be turned into size_t rather than int.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-03-10 13:45:10 +01:00
Peter Krempa
98bbc8d59a Revert "storage: Introduce internal pool support"
The internal pools were an idea in one of the first iterations of the
gluster series, which we decided not to use. Somehow the patch still
got pushed. Remove it as the internal flag isn't needed.

This reverts commit 362da8209d.
2014-02-14 17:39:37 +01:00
Peter Krempa
362da8209d storage: Introduce internal pool support
To allow using the storage driver APIs to do operation on generic domain
disks we will need to introduce internal storage pools that will give is
a base to support this stuff even on files that weren't originally
defined as a part of the pool.

This patch introduces the 'internal' flag for a storage pool that will
prevent it from being listed along with the user defined storage pools.
2014-01-16 11:39:53 +01:00
Christophe Fergeau
9b73290f46 conf: Always use VIR_ERR_CONFIG_UNSUPPORTED on enumFromString() failures
Currently, during XML parsing, when a call to a FromString() function to
get an enum value fails, the error which is reported is either
VIR_ERR_CONFIG_UNSUPPORTED, VIR_ERR_INTERNAL_ERROR or VIR_ERR_XML_ERROR.

This commit makes such conversion failures consistently return
VIR_ERR_CONFIG_UNSUPPORTED.
2014-01-16 11:09:43 +01:00
Peter Krempa
b560946c19 storage: Add gluster pool filter and fix virsh pool listing
Recent addition of the gluster pool type omitted fixing the virsh and
virConnectListAllStoragePool filters. A typecast of the converting
function in virsh showed that also the sheepdog pool was omitted in the
command parser.

This patch adds gluster pool filtering support and fixes virsh to
properly convert all supported storage pool types. The added typecast
should avoid doing such mistakes in the future.
2013-12-19 11:01:50 +01:00
Eric Blake
ecd881b7a7 storage: add network-dir as new storage volume type
In the 'directory' and 'netfs' storage pools, a user can see
both 'file' and 'dir' storage volume types, to know when they
can descend into a subdirectory.  But in a network-based storage
pool, such as the upcoming 'gluster' pool, we use 'network'
instead of 'file', and did not have any counterpart for a
directory until this patch.  Adding a new volume type
'network-dir' is better than reusing 'dir', because it makes
it clear that the only way to access 'network' volumes within
that container is through the network mounting (leaving 'dir'
for something accessible in the local file system).

* include/libvirt/libvirt.h.in (virStorageVolType): Expand enum.
* docs/formatstorage.html.in: Document it.
* docs/schemasa/storagevol.rng (vol): Allow new value.
* src/conf/storage_conf.c (virStorageVol): Use new value.
* src/qemu/qemu_command.c (qemuBuildVolumeString): Fix client.
* src/qemu/qemu_conf.c (qemuTranslateDiskSourcePool): Likewise.
* tools/virsh-volume.c (vshVolumeTypeToString): Likewise.
* src/storage/storage_backend_fs.c
(virStorageBackendFileSystemVolDelete): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-25 12:29:49 -07:00
Eric Blake
318ea3cb77 storage: initial support for linking with libgfapi
We support gluster volumes in domain XML, so we also ought to
support them as a storage pool.  Besides, a future patch will
want to take advantage of libgfapi to handle the case of a
gluster device holding qcow2 rather than raw storage, and for
that to work, we need a storage backend that can read gluster
storage volume contents.  This sets up the framework.

Note that the new pool is named 'gluster' to match a
<disk type='network'><source protocol='gluster'> image source
already supported in a <domain>; it does NOT match the
<pool type='netfs'><source><target type='glusterfs'>,
since that uses a FUSE mount to a local file name rather than
a network name.

This and subsequent patches have been tested against glusterfs
3.4.1 (available on Fedora 19); there are likely bugs in older
versions that may prevent decent use of gfapi, so this patch
enforces the minimum version tested.  A future patch may lower
the minimum.  On the other hand, I hit at least two bugs in
3.4.1 that will be fixed in 3.5/3.4.2, where it might be worth
raising the minimum: glfs_readdir is nicer to use than
glfs_readdir_r [1], and glfs_fini should only return failure on
an actual failure [2].

[1] http://lists.gnu.org/archive/html/gluster-devel/2013-10/msg00085.html
[2] http://lists.gnu.org/archive/html/gluster-devel/2013-10/msg00086.html

* configure.ac (WITH_STORAGE_GLUSTER): New conditional.
* m4/virt-gluster.m4: new file.
* libvirt.spec.in (BuildRequires): Support gluster in spec file.
* src/conf/storage_conf.h (VIR_STORAGE_POOL_GLUSTER): New pool
type.
* src/conf/storage_conf.c (poolTypeInfo): Treat similar to
sheepdog and rbd.
(virStoragePoolDefFormat): Don't output target for gluster.
* src/storage/storage_backend_gluster.h: New file.
* src/storage/storage_backend_gluster.c: Likewise.
* po/POTFILES.in: Add new file.
* src/storage/storage_backend.c (backends): Register new type.
* src/Makefile.am (STORAGE_DRIVER_GLUSTER_SOURCES): Build new files.
* src/storage/storage_backend.h (_virStorageBackend): Documet
assumption.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-25 11:02:52 -07:00
Eric Blake
1b5c8d4cbc storage: expose volume meta-type in XML
I got annoyed at having to use both 'virsh vol-list $pool --details'
AND 'virsh vol-dumpxml $vol $pool' to learn if I had populated
the volume correctly.  Since two-thirds of the data present in
virStorageVolGetInfo() already appears in virStorageVolGetXMLDesc(),
this just adds the remaining piece of information, as:

<volume type='...'>
  ...
</volume>

* docs/formatstorage.html.in: Document new <volume type=...>.
* docs/schemas/storagevol.rng (vol): Add it to RelaxNG.
* src/conf/storage_conf.h (virStorageVolTypeToString): Declare.
* src/conf/storage_conf.c (virStorageVolTargetDefFormat): Output
the metatype.
(virStorageVolDefParseXML): Parse it, for unit tests.
* tests/storagevolxml2xmlout/vol-*.xml: Update tests to match.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-25 10:55:19 -07:00
Eric Blake
6cc4d6a3fe storage: use valid XML for awkward volume names
$ touch /var/lib/libvirt/images/'a<b>c'
$ virsh pool-refresh default
$ virsh vol-dumpxml 'a<b>c' default | head -n2
<volume>
  <name>a<b>c</name>

Oops.  That's not valid XML.  And when we fix the XML
generation, it fails RelaxNG validation.

I'm also tired of seeing <key>(null)</key> in the example
output for volume xml; while we used NULLSTR() to avoid
a NULL deref rather than relying on glibc's printf
extension behavior, it's even better if we avoid the issue
in the first place.  But this requires being careful that
we don't invalidate any storage backends that were relying
on key being unassigned during virStoragVolCreateXML[From].

I would have split this into two patches (one for escaping,
one for avoiding <key>(null)</key>), but since they both
end up touching a lot of the same test files, I ended up
merging it into one.

Note that this patch allows pretty much any volume name
that can appear in a directory (excluding . and .. because
those are special), but does nothing to change the current
(unenforced) RelaxNG claim that pool names will consist
only of letters, numbers, _, -, and +.  Tightening the C
code to match RelaxNG patterns and/or relaxing the grammar
to match the C code for pool names is a task for another
day (but remember, we DID recently tighten C code for
domain names to exclude a leading '.').

* src/conf/storage_conf.c (virStoragePoolSourceFormat)
(virStoragePoolDefFormat, virStorageVolTargetDefFormat)
(virStorageVolDefFormat): Escape user-controlled strings.
(virStorageVolDefParseXML): Parse key, for use in unit tests.
* src/storage/storage_driver.c (storageVolCreateXML)
(storageVolCreateXMLFrom): Ensure parsed key doesn't confuse
volume creation.
* docs/schemas/basictypes.rng (volName): Relax definition.
* tests/storagepoolxml2xmltest.c (mymain): Test it.
* tests/storagevolxml2xmltest.c (mymain): Likewise.
* tests/storagepoolxml2xmlin/pool-dir-naming.xml: New file.
* tests/storagepoolxml2xmlout/pool-dir-naming.xml: Likewise.
* tests/storagevolxml2xmlin/vol-file-naming.xml: Likewise.
* tests/storagevolxml2xmlout/vol-file-naming.xml: Likewise.
* tests/storagevolxml2xmlout/vol-*.xml: Fix fallout.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-21 17:29:47 -07:00
Eric Blake
6f4901e13b maint: fix comma style issues: conf
Most of our code base uses space after comma but not before;
fix the remaining uses before adding a syntax check.

* src/conf/capabilities.c: Consistently use commas.
* src/conf/domain_conf.c: Likewise.
* src/conf/network_conf.c: Likewise.
* src/conf/storage_conf.c: Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-11-20 09:14:54 -07:00
Daniel P. Berrange
6b663b6fd1 Fix crash on OOM parsing storage pool XML
The virStoragePoolDefParseSource method would set def->nhosts
before allocating def->hosts. If the allocation failed due to
OOM, the cleanup code would crash accessing out of bounds.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-09-25 18:12:08 +01:00
Martin Kletzander
efab27afbf Make logical pools independent on target path
When using logical pools, we had to trust the target->path provided.
This parameter, however, can be completely ommited and we can use
'/dev/<source.name>' safely and populate it to target.path.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=952973
2013-07-16 12:16:37 +02:00
John Ferlan
41ac818483 storage_conf: Merge AuthChap and AuthCephx into AuthSecret
Merge virStoragePoolDefParseAuthChap and virStoragePoolDefParseAuthCephx
into a common virStoragePoolDefParseAuthSecret.  Change the output to be
common for both by putting 'type' first followed by 'username'.
2013-07-15 12:41:12 -04:00
John Ferlan
37029be4c0 storage_conf: Move username processing into common function
Move the auth->username processing into virStoragePoolDefParseAuth
save the resulting username into chap/cephx specific data
2013-07-15 12:41:12 -04:00
John Ferlan
eb0d79c64b storage_pool: Rework chap XML to mimic ceph
The existing 'chap' XML logic was never used - just defined.  Rather than
try to insert a square peg into a round hole, blow it up and rewrite the
logic to follow the 'ceph' format.

Remove the former "chap.login" and "chap.passwd" fields and replace
with "chap.username" and "chap.secret" in _virStoragePoolAuthChap.
Adjust the virStoragePoolDefParseAuthChap() to process.

Change the rng file to describe the new layout

Update the formatstorage.html to describe the usage of the secret element
to mention that the secret type "iscsi" and "ceph" can be used
to storage pool too.

Update the formatsecret.html to include a reference to the storage pool

Update tests to handle the changes from 'login' and 'passwd' to 'username'
and '<secret>' format
2013-07-15 12:41:12 -04:00
John Ferlan
092ca9689a storage_conf: Move auth processing into virStoragePoolDefParseAuth
Split processing of "<auth" into its own function
2013-07-15 12:41:12 -04:00
John Ferlan
26a8431144 storage_conf: Adjust virStoragePoolAuthType enum
Generate and use the virStoragePoolAuthTypeType{To|From}String helpers
2013-07-15 12:41:12 -04:00
Daniel P. Berrange
921d67e03b Convert 'int i' to 'size_t i' in src/conf/ files
Convert the type of loop iterators named 'i', 'j', k',
'ii', 'jj', 'kk', to be 'size_t' instead of 'int' or
'unsigned int', also santizing 'ii', 'jj', 'kk' to use
the normal 'i', 'j', 'k' naming

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-07-10 17:40:13 +01:00
Michal Privoznik
f2d5e864a2 Adapt to VIR_ALLOC and virAsprintf in src/conf/* 2013-07-10 11:07:31 +02:00
Daniel P. Berrange
323049a089 Add access control filtering of storage objects
Ensure that all APIs which list storage objects filter
them against the access control system.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-07-03 15:54:53 +01:00
Ján Tomko
31d42506fb conf: add features to volume target XML
Add <features> and <compat> elements to volume target XML.

<compat> is a string which for qcow2 represents the QEMU version
it should be compatible with. Valid values are 0.10 and 1.1.
1.1 is implicit if the <features> element is present, otherwise
qemu-img default is used. 0.10 can be specified to explicitly
create older images after the qemu-img default changes.

<features> contains optional features, so far
<lazy_refcounts/> is available, which enables caching of reference
counters, improving performance for snapshots.
2013-06-21 13:25:30 +02:00
Ján Tomko
85f9178160 Remove redundant two-state integers 2013-06-06 17:22:53 +02:00
John Ferlan
2f3e7f1e36 Resolve memory leak found by valgrind
Commit '6afdfc8e' adjusted the exit and error paths to go through the error
and cleanup labels, but neglected to remove the return ret prior to cleanup.
Also noted the 'type' xml string fetch was never checked for NULL which
could lead to some interesting results.
2013-05-31 10:38:15 -04:00
Osier Yang
6c89768da4 storage_conf: Use uid_t/gid_t instead of int to cast the value
And error out if the casted value is not same with the original
one, which prevents the bug on platform(s) where uid_t/gid_t
has different size with long.
2013-05-29 18:19:19 +08:00
Osier Yang
ec2b81c68b storage_conf: Improve error messages
virStoragePoolDefParseSource:
  * Better error message

virStoragePoolObjLoad:
  * Break the line line
2013-05-29 18:08:42 +08:00
Osier Yang
1c6fe3fa3a storage_conf: Use NULLSTR instead 2013-05-29 18:06:11 +08:00
Osier Yang
107130cc71 storage_conf: Improve the memory deallocation of virStorageVolDefParseXML
Changes:
  * Add a new goto label "error"
  * Free the strings at "cleanup"
  * Remove the unnecessary frees
2013-05-29 18:05:55 +08:00
Osier Yang
6afdfc8e13 storage_conf: Improve the memory deallocation of pool def parsing
Changes:
    * Free all the strings at "cleanup", instead of freeing them
      in the middle
    * Remove xmlFree
    * s/tmppath/target_path/, to make it more sensible
    * Add new goto label "error"
2013-05-29 18:04:33 +08:00
Osier Yang
267915ee69 storage_conf: Fix the error type
s/VIR_ERR_INTERNAL_ERROR/VIR_ERR_XML_ERROR/.
2013-05-24 22:34:16 +08:00
Osier Yang
3c37730efc storage_conf: Put "%s" at the same line with error type
Trivial, but it allows the "error message" to have more spaces.
2013-05-24 22:34:03 +08:00
Osier Yang
0175f03cde storage_conf: Use xmlStrEqual instead of STREQ
And improve the error message
2013-05-24 22:33:50 +08:00
Osier Yang
7ae5999fa3 storage_conf: Remove the useless casting 2013-05-24 22:33:35 +08:00
Osier Yang
61c6227341 storage_conf: Don't leak "uuid" in virStoragePoolDefParseAuthCephx
Any string returned from virXPathString should be freed.
2013-05-24 22:33:23 +08:00
Osier Yang
49598fab61 storage_conf: Fix the wrong error message
It's for parsing "login" attribute of "auth".
2013-05-24 22:33:07 +08:00
Michal Privoznik
bf1fe848c7 Adapt to VIR_STRDUP and VIR_STRNDUP in src/conf/* 2013-05-22 18:53:59 +02:00
Osier Yang
8980613491 src/conf: Remove the whitespace before ';' 2013-05-21 23:41:44 +08:00
Osier Yang
76359ee505 storage_conf: Fix indentions in storage_conf.c
Uses the 4 spaces for indention.
2013-05-20 20:00:19 +08:00
Osier Yang
c8a3cf89f3 storage_conf: Fix the coding stype in storage_conf.c
Changes:
  * Remove the useless space in "for" statement (e.g.
    for (i = 0 ; i < something ; i++)

  * Change the function's style to:
    void
    foo(bar)
    {
        printf("foo is not bar\n");
    }

  * Don't lose "{}" for "if...else" branches if one of the branch
    has more than one line block. Example of the old ones:
    if (a) {
        printf("a is not funny");
    } else
        printf("a is funny");

  * Remove the 1 space before "goto" label.

  * Remove the useless blank line(s)

  * Add blank line if it can make the code more clear to eyes.
2013-05-20 19:59:18 +08:00
Osier Yang
a3f600f908 conf: Improve the coding style
Add spaces around "<<", and remove the useless blank-line.
2013-05-16 11:11:17 +08:00
Ján Tomko
dcea5a492f get rid of virBufferAsprintf where possible
Use virBufferAddLit or virBufferAddChar instead.
2013-05-07 17:38:58 +02:00
Michal Privoznik
7c9a2d88cd virutil: Move string related functions to virstring.c
The source code base needs to be adapted as well. Some files
include virutil.h just for the string related functions (here,
the include is substituted to match the new file), some include
virutil.h without any need (here, the include is removed), and
some require both.
2013-05-02 16:56:55 +02:00
Osier Yang
9f781da69d New XML attributes for storage pool source adapter
This introduces 4 new attributes for storage pool source adapter.
E.g.

<adapter type='fc_host' parent='scsi_host5' wwnn='20000000c9831b4b' wwpn='10000000c9831b4b'/>

Attribute 'type' can be either 'scsi_host' or 'fc_host', and defaults
to 'scsi_host' if attribute 'name' is specified. I.e. It's optional
for 'scsi_host' adapter, for back-compat reason. However, mandatory
for 'fc_host' adapter and any new future adapter types. Attribute
'parent' is to specify the parent for the fc_host adapter.

* docs/formatstorage.html.in:
  - Add documents for the 4 new attrs
* docs/schemas/storagepool.rng:
  - Add RNG schema
* src/conf/storage_conf.c:
  - Parse and format the new XMLs
* src/conf/storage_conf.h:
  - New struct virStoragePoolSourceAdapter, replace "char *adapter" with it;
  - New enum virStoragePoolSourceAdapterType
* src/libvirt_private.syms:
  - Export TypeToString and TypeFromString
* src/phyp/phyp_driver.c:
  - Replace "adapter" with "adapter.data.name", which is member of the union
    of the new struct virStoragePoolSourceAdapter now. Later patch will
    add the checking, as "adapter.data.name" is only valid for "scsi_host"
    adapter.
* src/storage/storage_backend_scsi.c:
  - Like above
* tests/storagepoolxml2xmlin/pool-scsi-type-scsi-host.xml:
* tests/storagepoolxml2xmlin/pool-scsi-type-fc-host.xml:
  - New test for 'fc_host' and "scsi_host" adapter
* tests/storagepoolxml2xmlout/pool-scsi.xml:
  - Change the expected output, as the 'type' defaults to 'scsi_host' if 'name"
    specified now
* tests/storagepoolxml2xmlout/pool-scsi-type-scsi-host.xml:
* tests/storagepoolxml2xmlout/pool-scsi-type-fc-host.xml:
  - New test
* tests/storagepoolxml2xmltest.c:
  - Include the test
2013-04-08 18:41:06 +08:00
Philipp Hahn
5474870cda storage: cast -1 for uid_t|gid_t
uid_t and gid_t are opaque types, ranging from s32 to u32 to u64.

Explicitly cast the magic -1 to the appropriate type.

Signed-off-by: Philipp Hahn <hahn@univention.de>
2013-02-25 15:46:32 +01:00
Daniel P. Berrange
f24404a324 Rename virterror.c virterror_internal.h to virerror.{c,h} 2012-12-21 11:19:50 +00:00
Daniel P. Berrange
556cf5f617 Rename xml.{c,h} to virxml.{c,h} 2012-12-21 11:19:50 +00:00
Daniel P. Berrange
e861b31275 Rename uuid.{c,h} to viruuid.{c,h} 2012-12-21 11:19:49 +00:00
Daniel P. Berrange
44f6ae27fe Rename util.{c,h} to virutil.{c,h} 2012-12-21 11:19:49 +00:00
Daniel P. Berrange
05dc8398dd Rename storage_file.{c,h} to virstoragefile.{c,h} 2012-12-21 11:19:48 +00:00
Daniel P. Berrange
ab9b7ec2f6 Rename memory.{c,h} to viralloc.{c,h} 2012-12-21 11:17:14 +00:00
Daniel P. Berrange
2005f7b552 Rename buf.{c,h} to virbuffer.{c,h}
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-12-21 11:17:12 +00:00
Peter Krempa
8312435707 maint: Misc whitespace cleanups 2012-12-03 15:13:32 +01:00
Ján Tomko
bc680e1381 conf: prevent crash with no uuid in cephx auth secret
Fix the null pointer access when UUID is not specified.
Introduce a bool 'uuidUsable' to virStoragePoolAuthCephx that indicates
if uuid was specified or not and use it instead of the pointless
comparison of the static UUID array to NULL.
Add an error message if both uuid and usage are specified.

Fixes:
Error: FORWARD_NULL (CWE-476):
libvirt-0.10.2/src/conf/storage_conf.c:461: var_deref_model: Passing
    null pointer "uuid" to function "virUUIDParse(char const *, unsigned
    char *)", which dereferences it. (The dereference is assumed on the
    basis of the 'nonnull' parameter attribute.)
Error: NO_EFFECT (CWE-398):
    libvirt-0.10.2/src/conf/storage_conf.c:979: array_null: Comparing an
    array to null is not useful: "src->auth.cephx.secret.uuid != NULL".
2012-12-03 15:13:32 +01:00
Ján Tomko
34e5791332 conf: check the return value of virXPathNodeSet
In a few places, the return value could get passed to VIR_ALLOC_N without
being checked, resulting in a request to allocate a lot of memory if the
return value was negative.
2012-11-29 00:00:39 +08:00
Ata E Husain Bohra
2b121dbc10 Add private data pointer to virStoragePool and virStorageVol
This will simplify the refactoring of the ESX storage driver to support
a VMFS and an iSCSI backend.

One of the tasks the storage driver needs to do is to decide which backend
driver needs to be invoked for a given request. This approach extends
virStoragePool and virStorageVol to store extra parameters:

1. privateData: stores pointer to respective backend storage driver.
2. privateDataFreeFunc: stores cleanup function pointer.

virGetStoragePool and virGetStorageVol are modfied to accept these extra
parameters as user params. virStoragePoolDispose and virStorageVolDispose
checks for cleanup operation if available.

The private data pointer allows the ESX storage driver to store a pointer
to the used backend with each storage pool and volume. This avoids the need
to detect the correct backend in each storage driver function call.
2012-11-26 14:39:39 +01:00
Ján Tomko
0b121614a2 xml: print uuids in the warning
In the XML warning, we print a virsh command line that can be used to
edit that XML. This patch prints UUIDs if the entity name contains
special characters (like shell metacharacters, or "--" that would break
parsing of the XML comment). If the entity doesn't have a UUID, just
print the virsh command that can be used to edit it.
2012-10-29 14:38:43 +01:00
Eric Blake
f772b3d91f storage: list more file types
When an image has no backing file, using VIR_STORAGE_FILE_AUTO
for its type is a bit confusing.  Additionally, a future patch
would like to reserve a default value for the case of no file
type specified in the XML, but different from the current use
of -1 to imply probing, since probing is not always safe.

Also, a couple of file types were missing compared to supported
code: libxl supports 'vhd', and qemu supports 'fat' for directories
passed through as a file system.

* src/util/storage_file.h (virStorageFileFormat): Add
VIR_STORAGE_FILE_NONE, VIR_STORAGE_FILE_FAT, VIR_STORAGE_FILE_VHD.
* src/util/storage_file.c (virStorageFileMatchesVersion): Match
documentation when version probing not supported.
(cowGetBackingStore, qcowXGetBackingStore, qcow1GetBackingStore)
(qcow2GetBackingStoreFormat, qedGetBackingStore)
(virStorageFileGetMetadataFromBuf)
(virStorageFileGetMetadataFromFD): Take NONE into account.
* src/conf/domain_conf.c (virDomainDiskDefForeachPath): Likewise.
* src/qemu/qemu_driver.c (qemuDomainGetBlockInfo): Likewise.
* src/conf/storage_conf.c (virStorageVolumeFormatFromString): New
function.
(poolTypeInfo): Use it.
2012-10-19 17:35:09 -06:00
Eric Blake
4ecb723b9e maint: fix up copyright notice inconsistencies
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/
2012-09-20 16:30:55 -06:00
Osier Yang
84208a4a8b list: Add helpers for listing storage pool objects
src/conf/storage_conf.c: Add virStoragePoolMatch to filter the
pools; Add virStoragePoolList to iterate over the pool objects
with filter.

src/conf/storage_conf.h: Declare virStoragePoolMatch,
virStoragePoolList, and the macros for filters.

src/libvirt_private.syms: Export helper virStoragePoolList.
2012-09-06 21:59:00 +08:00
Hendrik Schwartke
7383c1d762 Added timestamps to storage volumes
The access, birth, modification and change times are added to
storage volumes and corresponding xml representations.  This
shows up in the XML in this format:

<timestamps>
  <atime>1341933637.027319099</atime>
  <mtime>1341933637.027319099</mtime>
</timestamps>

Signed-off-by: Eric Blake <eblake@redhat.com>
2012-08-02 17:14:17 -06:00
Ján Tomko
37a10129c2 Update xml schemas according to libvirt source
capability.rng: Guest features can be in any order.
nodedev.rng: Added <driver> element, <capability> phys_function and
virt_functions for PCI devices.
storagepool.rng: Owner or group ID can be -1.

schema tests: New capabilities and nodedev files; changed owner and
group to -1 in pool-dir.xml.
storage_conf: Print uid_t and gid_t as signed to storage pool XML.
2012-08-02 14:36:23 -06:00
Osier Yang
f9ce7dad60 Desert the FSF address in copyright
Per the FSF address could be changed from time to time, and GNU
recommends the following now: (http://www.gnu.org/licenses/gpl-howto.html)

  You should have received a copy of the GNU General Public License
  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.

This patch removes the explicit FSF address, and uses above instead
(of course, with inserting 'Lesser' before 'General').

Except a bunch of files for security driver, all others are changed
automatically, the copyright for securify files are not complete,
that's why to do it manually:

  src/security/security_selinux.h
  src/security/security_driver.h
  src/security/security_selinux.c
  src/security/security_apparmor.h
  src/security/security_apparmor.c
  src/security/security_driver.c
2012-07-23 10:50:50 +08:00
Sebastian Wiedenroth
29bc4fe646 Add a sheepdog backend for the storage driver
This patch brings support to manage sheepdog pools and volumes to libvirt.
It uses the "collie" command-line utility that comes with sheepdog for that.

A sheepdog pool in libvirt maps to a sheepdog cluster.
It needs a host and port to connect to, which in most cases
is just going to be the default of localhost on port 7000.

A sheepdog volume in libvirt maps to a sheepdog vdi.
To create one specify the pool, a name and the capacity.
Volumes can also be resized later.

In the volume XML the vdi name has to be put into the <target><path>.
To use the volume as a disk source for virtual machines specify
the vdi name as "name" attribute of the <source>.
The host and port information from the pool are specified inside the host tag.

  <disk type='network'>
    ...
    <source protocol="sheepdog" name="vdi_name">
      <host name="localhost" port="7000"/>
    </source>
  </disk>

To work right this patch parses the output of collie,
so it relies on the raw output option. There recently was a bug which caused
size information to be reported wrong. This is fixed upstream already and
will be in the next release.

Signed-off-by: Sebastian Wiedenroth <wiedi@frubar.net>
2012-07-18 20:08:27 +01:00
Daniel P. Berrange
1e0bb184a7 Convert all files in src/conf/ to use virReportError()
This removes all the per-file error reporting macros
from the code in src/conf/

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-18 19:01:50 +01:00
Osier Yang
8a544719aa storage: Default pool permission mode to 0755
Per the typical use of libvirt is to fork the qemu process with
qemu:qemu. Setting the pool permission mode as 0700 by default
will prevent the guest start with permission reason.

Define macro for the default pool and vol permission modes
incidentally.
2012-07-11 22:40:48 +08:00
Peter Krempa
73f4b30882 storage_conf: Break long line and polish coding style 2012-07-09 16:19:50 +02:00
Wido den Hollander
74951eadef storage backend: Add RBD (RADOS Block Device) support
This patch adds support for a new storage backend with RBD support.

RBD is the RADOS Block Device and is part of the Ceph distributed storage
system.

It comes in two flavours: Qemu-RBD and Kernel RBD, this storage backend only
supports Qemu-RBD, thus limiting the use of this storage driver to Qemu only.

To function this backend relies on librbd and librados being present on the
local system.

The backend also supports Cephx authentication for safe authentication with
the Ceph cluster.

For storing credentials it uses the built-in secret mechanism of libvirt.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2012-05-21 12:37:38 -06:00
Alex Jia
15e0b20acd conf: Fix memory leaks in virStoragePoolDefParseSource
Detected by valgrind. Leaks are introduced in commit 122fa379.

src/conf/storage_conf.c: fix memory leaks.

How to reproduce?
$ make && make -C tests check TESTS=storagepoolxml2xmltest
$ cd tests && valgrind -v --leak-check=full ./storagepoolxml2xmltest

actual result:
==28571== LEAK SUMMARY:
==28571==    definitely lost: 40 bytes in 5 blocks
==28571==    indirectly lost: 0 bytes in 0 blocks
==28571==      possibly lost: 0 bytes in 0 blocks
==28571==    still reachable: 1,054 bytes in 21 blocks
==28571==         suppressed: 0 bytes in 0 blocks

Signed-off-by: Alex Jia <ajia@redhat.com>
2012-05-10 09:28:24 +08:00
Eric Blake
29e702e576 storage: fix build with iscsi
The previous storage patch missed an instance affected by the struct
member rename.  It also had some botched whitespace detected by
'make check'.

* src/storage/storage_backend_iscsi.c
(virStorageBackendISCSIFindPoolSources): Adjust to new struct.
* src/conf/storage_conf.c (virStoragePoolSourceFormat): Fix
indentation.
2012-04-30 11:37:35 -06:00
Osier Yang
980f12be72 storage: Break out the loop if duplicate pool is found
It doesn't break out the "for" loop even if duplicate pool is
found, and thus the "matchpool" could be overriden as NULL again
if there is different pool afterwards.

To address the problem in libvirt-user list:

https://www.redhat.com/archives/libvirt-users/2012-April/msg00150.html
2012-04-30 21:12:58 +08:00
Wido den Hollander
122fa379de storage: Allow multiple hosts for a storage pool
The current storage pools for NFS and iSCSI only require one host to
connect to. Future storage pools like RBD and Sheepdog will require
multiple hosts.

This patch allows multiple source hosts and rewrites the current
storage drivers.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2012-04-30 18:44:44 +08:00
Eric Blake
c09acad352 conf: tighten up XML integer parsing
https://bugzilla.redhat.com/show_bug.cgi?id=617711 reported that
even with my recent patched to allow <memory unit='G'>1</memory>,
people can still get away with trying <memory>1G</memory> and
silently get <memory unit='KiB'>1</memory> instead.  While
virt-xml-validate catches the error, our C parser did not.

Not to mention that it's always fun to fix bugs while reducing
lines of code.  :)

* src/conf/domain_conf.c (virDomainParseMemory): Check for parse error.
(virDomainDefParseXML): Avoid strtoll.
* src/conf/storage_conf.c (virStorageDefParsePerms): Likewise.
* src/util/xml.c (virXPathLongBase, virXPathULongBase)
(virXPathULongLong, virXPathLongLong): Likewise.
2012-04-19 17:42:53 -06:00
Eric Blake
8768149545 build: fix build on cygwin
Regression introduced when we changed types in commit 3e2c3d8f6.

We've done this sort of cleanup before (see commit c685993d7).

* src/conf/storage_conf.c (virStoragePoolDefFormat)
(virStorageVolTargetDefFormat): Cast gid_t and uid_t.
2012-03-30 16:51:41 -06:00
Eric Blake
2e14861224 storage: support more scaling suffixes
Disk manufacturers are fond of quoting sizes in powers of 10,
rather than powers of 2 (after all, 2.1 GB sounds larger than
2.0 GiB, even though the exact opposite is true).  So, we might
as well follow coreutils' lead in supporting three types of
suffix: single letter ${u} (which we already had) and ${u}iB
for the power of 2, and ${u}B for power of 10.

Additionally, it is impossible to create a file with more than
2**63 bytes, since off_t is signed (if you have enough storage
to even create one 8EiB file, I'm jealous).  This now reports
failure up front rather than down the road when the kernel
finally refuses an impossible size.

* docs/schemas/basictypes.rng (unit): Add suffixes.
* src/conf/storage_conf.c (virStorageSize): Use new function.
* docs/formatstorage.html.in: Document it.
* tests/storagevolxml2xmlin/vol-file-backing.xml: Test it.
* tests/storagevolxml2xmlin/vol-file.xml: Likewise.
2012-03-07 18:24:43 -07:00
Eric Blake
265457845f xml: output memory unit for clarity
Make it obvious to 'dumpxml' readers what unit we are using,
since our default of KiB for memory (1024) differs from qemu's
default of MiB; and differs from our use of bytes for storage.

Tests were updated via:

$ find tests/*data tests/*out -name '*.xml' | \
  xargs sed -i 's/<\(memory\|currentMemory\|hard_limit\|soft_limit\|min_guarantee\|swap_hard_limit\)>/<\1 unit='"'KiB'>/"
$ find tests/*data tests/*out -name '*.xml' | \
  xargs sed -i 's/<\(capacity\|allocation\|available\)>/<\1 unit='"'bytes'>/"

followed by a few fixes for the stragglers.

Note that with this patch, the RNG for <memory> still forbids
validation of anything except unit='KiB', since the code silently
ignores the attribute; a later patch will expand <memory> to allow
scaled input in the code and update the RNG to match.

* docs/schemas/basictypes.rng (unit): Add 'bytes'.
(scaledInteger): New define.
* docs/schemas/storagevol.rng (sizing): Use it.
* docs/schemas/storagepool.rng (sizing): Likewise.
* docs/schemas/domaincommon.rng (memoryKBElement): New define; use
for memory elements.
* src/conf/storage_conf.c (virStoragePoolDefFormat)
(virStorageVolDefFormat): Likewise.
* src/conf/domain_conf.h (_virDomainDef): Document unit used
internally.
* src/conf/storage_conf.h (_virStoragePoolDef, _virStorageVolDef):
Likewise.
* tests/*data/*.xml: Update all tests.
* tests/*out/*.xml: Likewise.
* tests/define-dev-segfault: Likewise.
* tests/openvzutilstest.c (testReadNetworkConf): Likewise.
* tests/qemuargv2xmltest.c (blankProblemElements): Likewise.
2012-03-07 18:24:43 -07:00
Eric Blake
3e2c3d8f6d build: use correct type for pid and similar types
No thanks to 64-bit windows, with 64-bit pid_t, we have to avoid
constructs like 'int pid'.  Our API in libvirt-qemu cannot be
changed without breaking ABI; but then again, libvirt-qemu can
only be used on systems that support UNIX sockets, which rules
out Windows (even if qemu could be compiled there) - so for all
points on the call chain that interact with this API decision,
we require a different variable name to make it clear that we
audited the use for safety.

Adding a syntax-check rule only solves half the battle; anywhere
that uses printf on a pid_t still needs to be converted, but that
will be a separate patch.

* cfg.mk (sc_correct_id_types): New syntax check.
* src/libvirt-qemu.c (virDomainQemuAttach): Document why we didn't
use pid_t for pid, and validate for overflow.
* include/libvirt/libvirt-qemu.h (virDomainQemuAttach): Tweak name
for syntax check.
* src/vmware/vmware_conf.c (vmwareExtractPid): Likewise.
* src/driver.h (virDrvDomainQemuAttach): Likewise.
* tools/virsh.c (cmdQemuAttach): Likewise.
* src/remote/qemu_protocol.x (qemu_domain_attach_args): Likewise.
* src/qemu_protocol-structs (qemu_domain_attach_args): Likewise.
* src/util/cgroup.c (virCgroupPidCode, virCgroupKillInternal):
Likewise.
* src/qemu/qemu_command.c(qemuParseProcFileStrings): Likewise.
(qemuParseCommandLinePid): Use pid_t for pid.
* daemon/libvirtd.c (daemonForkIntoBackground): Likewise.
* src/conf/domain_conf.h (_virDomainObj): Likewise.
* src/probes.d (rpc_socket_new): Likewise.
* src/qemu/qemu_command.h (qemuParseCommandLinePid): Likewise.
* src/qemu/qemu_driver.c (qemudGetProcessInfo, qemuDomainAttach):
Likewise.
* src/qemu/qemu_process.c (qemuProcessAttach): Likewise.
* src/qemu/qemu_process.h (qemuProcessAttach): Likewise.
* src/uml/uml_driver.c (umlGetProcessInfo): Likewise.
* src/util/virnetdev.h (virNetDevSetNamespace): Likewise.
* src/util/virnetdev.c (virNetDevSetNamespace): Likewise.
* tests/testutils.c (virtTestCaptureProgramOutput): Likewise.
* src/conf/storage_conf.h (_virStoragePerms): Use mode_t, uid_t,
and gid_t rather than int.
* src/security/security_dac.c (virSecurityDACSetOwnership): Likewise.
* src/conf/storage_conf.c (virStorageDefParsePerms): Avoid
compiler warning.
2012-03-02 06:57:43 -07:00
Daniel P. Berrange
c85013b90d Fix storage pool source comparison to avoid comparing with self
If we are comparing storage pools we must skip comparing with
ourself, so that re-defining an existing pool works

* conf/storage_conf.c: Skip self when comparing
2011-11-01 11:13:29 +00:00
Jiri Denemark
c0d9dfe2a1 Use virXMLSaveFile when writing XML config 2011-10-27 20:13:15 +02:00
Eric Blake
4d8e20f6c2 snapshot: simplify indentation of disk encryption xml
Use auto-indent in more places.

* src/conf/storage_encryption_conf.h (virStorageEncryptionFormat):
Drop parameter.
* src/conf/storage_encryption_conf.c (virStorageEncryptionFormat)
(virStorageEncryptionSecretFormat): Simplify with auto-indent.
* src/conf/domain_conf.c (virDomainDiskDefFormat): Adjust caller.
* src/conf/storage_conf.c (virStorageVolTargetDefFormat): Likewise.
2011-10-26 11:14:43 -06:00
Eric Blake
b1836a254e storage: make previous leak less likely to regress
Splitting into two functions allows the user to call the right
function, rather than having to remember that a *Free function is
an exception to the rule.

* src/conf/storage_conf.h (virStoragePoolSourceClear): New function.
* src/libvirt_private.syms (storage_conf.h): Export it.
* src/conf/storage_conf.c (virStoragePoolSourceFree): Split...
(virStoragePoolSourceClear): ...into new function.
(virStoragePoolDefFree, virStoragePoolDefParseSourceString):
Update callers.
* src/test/test_driver.c (testStorageFindPoolSources): Likewise.
* src/storage/storage_backend_fs.c
(virStorageBackendFileSystemNetFindPoolSourcesFunc)
(virStorageBackendFileSystemNetFindPoolSources): Likewise.
* src/storage/storage_backend_iscsi.c
(virStorageBackendISCSIFindPoolSources): Likewise.
* src/storage/storage_backend_logical.c
(virStorageBackendLogicalFindPoolSources): Likewise.
2011-10-24 19:42:49 -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
Lei Li
5a1f272875 Check for source conflicts in storage pools
Fix bug #611823 storage driver should prohibit pools with duplicate
underlying storage.

Add internal API virStoragePoolSourceFindDuplicate() to do uniqueness
check based on source location infomation for pool type.

* AUTHORS: add Lei Li
2011-09-05 15:52:03 +08:00
Eric Blake
d89dd42d51 maint: simplify lots of libxml2 clients
Repetitive patterns should be factored.  The sign of a good
factorization is a change that kills 5x more lines than it adds :)

* src/conf/domain_conf.c (virDomainDeviceDefParse)
(virDomainSnapshotDefParseString): Use new convenience macros.
* src/conf/storage_conf.c (virStoragePoolDefParseSourceString):
Likewise.
* src/cpu/cpu.c (cpuCompareXML, cpuBaselineXML): Likewise.
* src/esx/esx_vi.c (esxVI_Context_Execute): Likewise.
* src/qemu/qemu_migration.c (qemuMigrationCookieXMLParseStr):
Likewise.
* src/security/virt-aa-helper.c (caps_mockup): Likewise.
* src/test/test_driver.c (testOpenFromFile): Likewise.
* tests/cputest.c (cpuTestLoadXML, cpuTestLoadMultiXML):
Likewise.
* tools/virsh.c (cmdFreecell, makeCloneXML, cmdVNCDisplay)
(cmdTTYConsole, cmdDetachInterface, cmdDetachDisk)
(cmdSnapshotCreate, cmdSnapshotCreateAs, cmdSnapshotCurrent)
(cmdSnapshotList, cmdSnapshotParent): Likewise.
2011-08-19 09:13:55 -06:00
Eric Blake
8e22e08935 build: rename files.h to virfile.h
In preparation for a future patch adding new virFile APIs.

* src/util/files.h, src/util/files.c: Move...
* src/util/virfile.h, src/util/virfile.c: ...here, and rename
functions to virFile prefix.  Macro names are intentionally
left alone.
* *.c: All '#include "files.h"' uses changed.
* src/Makefile.am (UTIL_SOURCES): Reflect rename.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_close): Likewise.
* src/libvirt_private.syms: Likewise.
* docs/hacking.html.in: Likewise.
* HACKING: Regenerate.
2011-07-21 10:34:51 -06:00
Eric Blake
e17d3e7fe7 conf: prefer unsigned flags
* src/conf/cpu_conf.h (virCPUDefFormat, virCPUDefFormatBuf):
Change flags type.
* src/conf/cpu_conf.c (virCPUDefFormat, virCPUDefFormatBuf):
Likewise.
* src/conf/storage_conf.c (_virStoragePoolOptions): Likewise.
* src/datatypes.h (_virConnect, _virStream): Likewise.
2011-07-13 17:05:10 -06:00
Matthias Bolte
e123e1ee6b Fix return value semantic of virFileMakePath
Some callers expected virFileMakePath to set errno, some expected
it to return an errno value. Unify this to return 0 on success and
-1 on error. Set errno to report detailed error information.

Also optimize virFileMakePath if stat fails with an errno different
from ENOENT.
2011-07-06 09:27:06 +02:00
Cole Robinson
b9e51e5677 xml: Use virXMLParse* helpers everywhere
virt-aa-helper isn't even compile tested since I don't have the setup for
it.

v2:
    virt-aa-helper fixes from Eric
2011-05-13 10:32:53 -04:00
Cole Robinson
0571c3afde xml: Make sure virXpathNodeSet always sets an error
And update callers to actually respect the error
2011-05-13 10:32:52 -04:00
Michal Privoznik
5d09c31495 Add warning message to XML definition files stored on disk
Users often edit XML file stored in configuration directory
thinking of modifying a domain/network/pool/etc. Thus it is wise
to let them know they are using the wrong way and give them hint.
2011-05-06 16:48:52 +02:00
Eric Blake
68ea80cfdd maint: rename virBufferVSprintf to virBufferAsprintf
We already have virAsprintf, so picking a similar name helps for
seeing a similar purpose.  Furthermore, the prefix V before printf
generally implies 'va_list', even though this variant was '...', and
the old name got in the way of adding a new va_list version.

global rename performed with:

$ git grep -l virBufferVSprintf \
  | xargs -L1 sed -i 's/virBufferVSprintf/virBufferAsprintf/g'

then revert the changes in ChangeLog-old.
2011-05-05 13:47:40 -06:00
Matthias Bolte
3ba5d77f3c Move call to virReportOOMError into virFileBuildPath
Suggested by Daniel P. Berrange
2011-04-27 09:18:53 +02:00
Matthias Bolte
1573158190 Remove PATH_MAX sized stack allocations related to virFileBuildPath
Make virFileBuildPath operate on the heap instead of the stack. It
allocates a buffer instead of expecting a preexisting buffer.
2011-04-05 08:55:27 +02:00
Osier Yang
98a4e5a301 storage: Fix a problem which will cause libvirtd crashed
If pool xml has no definition for "port", then "Segmentation fault"
happens when jumping to "cleanup:" to do "VIR_FREE(port)", as "port"
was not initialized in this situation.

* src/conf/storage_conf.c
2011-03-16 16:28:07 +08:00
Matthias Bolte
dc52cab126 Prefer C style comments over C++ ones
Pure cosmetic change.
2011-01-29 00:59:45 +01:00
Matthias Bolte
8c6d61162f Fix misuse of VIR_ERR_INVALID_* error code
VIR_ERR_INVALID_* is meant for invalid pointers only.
2011-01-18 23:14:37 +01:00
Eric Blake
416c09bcc0 maint: prohibit most uses of xmlGetProp
Making this change makes it easier to spot the memory leaks
that will be fixed in the next patch.

* cfg.mk (sc_prohibit_xmlGetProp): New rule.
* .x-sc_prohibit_xmlGetProp: New exception.
* Makefile.am (EXTRA_DIST): Ship exception file.
* tools/virsh.c (cmdDetachInterface, cmdDetachDisk): Adjust
offenders.
* src/conf/storage_conf.c (virStoragePoolDefParseSource):
Likewise.
* src/conf/network_conf.c (virNetworkDHCPRangeDefParseXML)
(virNetworkIPParseXML): Likewise.
2010-11-24 15:23:43 -07:00
Daniel P. Berrange
b6e5a0a26e Fix parsing of port attribute in storage XML configuration
The XML docs describe a 'port' attribute for the
storage source <host> element, but the parser never
handled it.

* docs/schemas/storagepool.rng: Define port attribute
* src/conf/storage_conf.c: Add missing parsing/formatting
  of host port number
* src/conf/storage_conf.h: Remove bogus/unused 'protocol' field
2010-11-23 14:55:33 +00:00
Stefan Berger
f04de501bc Introduce VIR_CLOSE to be used rather than close()
Since bugs due to double-closed file descriptors are difficult to track down in a multi-threaded system, I am introducing the VIR_CLOSE(fd) macro to help avoid mistakes here.

There are lots of places where close() is being used. In this patch I am only cleaning up usage of close() in src/conf where the problems were.

I also dare to declare close() as being deprecated in libvirt code base (HACKING).
2010-10-19 10:23:51 -04:00
Patrick Dignan
20be699ee3 storage: add support for Vendor and Model in XML
I wrote a patch to add support for listing the Vendor and Model of a
storage pool in the storage pool XML.  This would allow vendor
extensions of specific devices.  The patch includes a test for the new
attributes as well.

Patrick Dignan
2010-08-19 15:58:43 -06:00
Stefan Berger
18b6323ab9 Fix valgrind complaints when using kill -SIGHUP on libvirtd
This patch fixes a couple of complaints from valgrind when tickling libvirtd with SIGHUP.

The first two files contain fixes for memory leaks. The 3rd one initializes an uninitialized variable. The 4th one is another memory leak.
2010-08-12 16:30:11 -04:00
David Allan
98fafb0c3e Add multiiqn XML dump
* Use virBufferEscapeString() per Dan B.
2010-06-08 13:14:18 -04:00
Daniel P. Berrange
e9364d9f2a Storage pool duplicate UUID/name checking
The storage pool driver is not doing correct checking for
duplicate UUID/name values. This introduces a new method
virStoragePoolObjIsDuplicate, based on the previously
written virDomainObjIsDuplicate.

* src/conf/storage_conf.c, src/conf/storage_conf.c,
  src/libvirt_private.syms: Add virStoragePoolObjIsDuplicate,
* src/storage/storage_driver.c: Call virStoragePoolObjIsDuplicate
  for checking uniqueness of uuid/names
2010-06-08 15:11:08 +01:00
Cole Robinson
a7fb2258ca storage: Sanitize pool target paths
Spurious / in a pool target path makes life difficult for apps using the
GetVolByPath, and doing other path based comparisons with pools. This
has caused a few issues for virt-manager users:

https://bugzilla.redhat.com/show_bug.cgi?id=494005
https://bugzilla.redhat.com/show_bug.cgi?id=593565

Add a new util API which removes spurious /, virFileSanitizePath. Sanitize
target paths when parsing pool XML, and for paths passed to GetVolByPath.

v2: Leading // must be preserved, properly sanitize path=/, sanitize
    away /./ -> /

v3: Properly handle starting ./ and ending /.

v4: Drop all '.' handling, just sanitize / for now.
2010-05-25 12:30:44 -04:00
Jim Meyering
a986892e61 maint: add more free-like functions to the list and deal with fallout
* cfg.mk (useless_free_options): Add many vir*Free* function names,
and then remove the useless if-before-free tests exposed by running
make syntax-check.
* src/conf/interface_conf.c (virInterfaceDefFree): Remove useless "if".
(virInterfaceAssignDef): Likewise.
* src/conf/network_conf.c (virNetworkAssignDef): Likewise.
* src/conf/storage_conf.c (virStoragePoolObjAssignDef): Likewise.
* src/node_device/node_device_hal.c (dev_create): Likewise.
* src/security/virt-aa-helper.c (vahDeinit): Likewise.
* src/test/test_driver.c (testNodeDeviceCreateXML): Likewise.
* src/util/conf.c (virConfSetValue): Likewise.
2010-05-18 07:53:42 +02:00
Matthias Bolte
61fb697977 Add CIFS to the list of network file systems
ESX supports NFS and CIFS. The ESX storage driver will reflect this.
2010-05-18 01:34:34 +02:00
David Allan
1b9347b5f1 Fix indentation for storage conf XML
* virStorageEncryptionFormat is called from both
  virDomainDiskDefFormat and virStorageVolTargetDefFormat.  The proper
  indentation in the generated XML depends on the caller.  My earlier
  patch to fix the incorrect indentation for the domain XML broke the
  indentation for the storage XML.  This patch adopts Laine's
  suggestion of requring the caller of virStorageEncryptionFormat to
  provide an unsigned int with the number of spaces the output should
  be indented.  The patch modifies both callers to provide the
  additional argument.

* Add a regression test for the domain XML

* src/conf/domain_conf.c src/conf/storage_conf.c
  src/conf/storage_encryption_conf.c src/conf/storage_encryption_conf.h:
  change the indentation code
* tests/qemuxml2xmltest.c
  tests/qemuxml2argvdata/qemuxml2argv-encrypted-disk.args
  tests/qemuxml2argvdata/qemuxml2argv-encrypted-disk.xml: add a regression test
2010-04-27 12:01:32 +02:00
Matthias Bolte
8138ec8693 Explicitly set virStoragePoolTypeInfo FS and NETFS defaults
No semantic change, the now explicitly set default are all zero and
that's what GCC sets unspecified struct members to.
2010-04-20 21:22:51 +02:00
Jiri Denemark
8d8815ea2a Use common XML parsing functions 2010-03-23 15:40:10 +01:00
Laine Stump
219305df44 Change default for storage uid/gid from getuid()/getgid() to -1/-1
This allows the config to have a setting that means "leave it alone",
eg when building a pool where the directory already exists the user
may want the current uid/gid of the directory left intact. This
actually gets us back to older behavior - before recent changes to the
pool building code, we weren't as insistent about honoring the uid/gid
settings in the XML, and virt-manager was taking advantage of this
behavior.

As a side benefit, removing calls to getuid/getgid from the XML
parsing functions also seems like a good idea. And having a default
that is different from a common/useful value (0 == root) is a good
thing in general, as it removes ambiguity from decisions (at least one
place in the code was checking for (perms.uid == 0) to see if a
special uid was requested).

Note that this will only affect newly created pools and volumes. Due
to the way that the XML is parsed, then formatted for newly created
volumes, all existing pools/volumes already have an explicit uid and
gid set.

src/conf/storage_conf.c: Remove calls to setuid/setgid for default values
                         of uid/gid, and set them to -1 instead

src/storage/storage_backend.c:
src/storage/storage_backend_fs.c:
        Make account for the new default values of perms.uid
        and perms.gid.
2010-03-04 17:35:27 -05:00
Daniel P. Berrange
ce5ced1d00 Fix parser checking of storage pool device
The storage backend implementations all presume that the XML parser
is validating correctness of the source specification. The check for
a source device was lost at some point. This allowed for a potential
crash in the disk backend. Re-introduce the sanity check

* src/conf/storage_conf.c: Re-add check for source device
2010-03-04 11:57:06 +00:00
Cole Robinson
67b44811af storage: conf: Correctly calculate exabyte unit
We were using 'Y' to mean exabyte, when the correct abbreviation would be
'E' ('Y' is yettabyte, which is exabyte * 1024 * 1024). While it isn't
strictly backwards compatible, I highly doubt anyone was actually using
this broken behavior, so I don't see any harm in in dropping 'Y' handling.
2010-02-23 09:44:37 -05:00
Jim Meyering
18e0cc7f72 plug four virStoragePoolSourceFree-related leaks
* src/conf/storage_conf.c (virStoragePoolDefParseSourceString):
* src/storage/storage_backend_fs.c:
(virStorageBackendFileSystemNetFindPoolSourcesFunc):
(virStorageBackendFileSystemNetFindPoolSources):
* src/test/test_driver.c (testStorageFindPoolSources):
2010-02-11 17:22:45 +01:00
Jiri Denemark
b2149d03b9 Mark all error messages for translation
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2010-02-11 16:46:20 +01:00
Daniel P. Berrange
031366383a Remove virConnectPtr from storage APIs & driver
The virConnectPtr is no longer required for error reporting since
that is recorded in a thread local. Remove use of virConnectPtr
from all APIs in storage_conf.{h,c} and storage_encryption_conf.{h,c}
and update all callers to match
2010-02-10 13:32:11 +00:00
Matthias Bolte
d5c6183def Remove conn parameter from virXPath* functions
It was used for error reporting only.
2010-02-09 01:04:54 +01:00
Matthias Bolte
a5ab900d26 Remove conn parameter from virReportSystemError 2010-02-09 01:04:54 +01:00
Matthias Bolte
8ce5e2c1ab Remove conn parameter from virReportOOMError 2010-02-09 01:04:54 +01:00
Jim Meyering
71c865f4d2 virStoragePoolSourceListNewSource: avoid unconditional leak
* src/conf/storage_conf.c (virStoragePoolSourceListNewSource):
Remove an unused (and leaked) allocation.
2010-02-03 15:46:59 +01:00
David Allan
6aabcb5bd8 Implement support for multi IQN
Allows the initiator to use a variety of IQNs rather than just the
system IQN when creating iSCSI pools.
* docs/schemas/storagepool.rng: extends the syntax with <iqn name="..."/>
* src/conf/storage_conf.[ch]: read and stores the iqn name
* src/storage/storage_backend_iscsi.[ch]: implement the IQN selection
  when detected
2010-01-21 12:50:52 +01:00
Jim Meyering
3aa13a471a storage_conf: plug a leak on OOM error path
* src/conf/storage_conf.c (virStoragePoolSourceListNewSource):
Free just-allocated "source" upon VIR_REALLOC_N failure.
2010-01-19 18:19:13 +01:00
Matthias Bolte
1b9d074493 Add virBufferFreeAndReset() and replace free()
Replace free(virBufferContentAndReset()) with virBufferFreeAndReset().
Update documentation and replace all remaining calls to free() with
calls to VIR_FREE(). Also add missing calls to virBufferFreeAndReset()
and virReportOOMError() in OOM error cases.
2009-12-10 00:00:50 +01:00
Cole Robinson
4c44cdcce3 Various error reporting fixes
- Don't duplicate SystemError
- Use proper error code in domain_conf
- Fix a broken error call in qemu_conf
- Don't use VIR_ERR_ERROR in security driver (isn't a valid code in this case)
2009-11-03 16:46:54 -05:00
Cole Robinson
d61fff3f4b storage: Add ParseSourceString function for use with FindPoolSources.
This will simplify adding FindPoolSources support to more pool backends in
the future (as well as the test driver).
2009-10-28 11:30:40 -04:00
Cole Robinson
9bcb174473 storage: Break out function to add pool source to a SourceList.
Similar in theory to *AssignDef type functions, this duplicate functionality
will be used by an future FindPoolSources implementations.
2009-10-28 11:30:39 -04:00
Cole Robinson
fcbbb289b6 storage: Break out pool source parsing to a separate function.
We need to parse a source XML block for FindPoolSources, so this is a step
in sharing the parsing. The new storage pool XML 2 XML tests cover this area
pretty well to ensure we aren't causing regressions.
2009-10-28 11:30:39 -04:00
Jim Fehlig
e391595890 Add ocfs2 to list of fs pool types
* src/conf/storage_conf.c src/conf/storage_conf.h: extend the enums
  and values
* docs/schemas/storagepool.rng: add to the list of storage pool type
  formats
2009-10-14 17:03:22 +02:00
Cole Robinson
826cbac459 storage: Fix generating iscsi 'auth' xml
We were missing a closing tag, so the XML wasn't proper.
2009-10-13 10:56:43 -04:00
Mark McLoughlin
00fd3ff49b Move file format enum to libvirt_util
Rename virStorageVolFormatFileSystem to virStorageFileFormat and
move to src/util/storage_file.[ch]

* src/Makefile.am: add src/util/storage_file.[ch]

* src/conf/storage_conf.[ch]: move enum from here ...

* src/util/storage_file.[ch]: .. to here

* src/libvirt_private.syms: update To/FromString exports

* src/storage/storage_backend.c, src/storage/storage_backend_fs.c,
  src/vbox/vbox_tmpl.c: update for above changes
2009-09-30 10:36:59 +01:00
Daniel P. Berrange
e0a48c99e4 Move all XML configuration handling to src/conf/
* src/capabilities.c, src/capabilities.h, src/domain_conf.c,
  src/domain_conf.h, src/domain_event.c, src/domain_event.h,
  src/interface_conf.c, src/interface_conf.h,
  src/network_conf.c, src/network_conf.h, src/node_device_conf.c,
  src/node_device_conf.h, src/secret_conf.c, src/secret_conf.h,
  src/storage_conf.c, src/storage_conf.h, src/storage_encryption_conf.c,
  src/storage_encryption_conf.h: Move to src/conf/
* src/Makefile.am: Add -Isrc/conf to the individual build targets
  which need to use XML config APIs. Remove LIBXML_CFLAGS, LIBSSH2_CFLAGS
  and SELINUX_CFLAGS from global INCLUDES and only have them in build
  targets which actually need them.  Create a libvirt_conf.la
  convenience library for all config parsers
* src/hostusb.h: Remove bogus include of domain_conf.h
* tests/Makefile.am: Add -Isrc/conf. Remove bogus -I$builddir/src
  since it never has any generated header files
* daemon/Makefile.am: Add -Isrc/conf
* proxy/Makefile.am: Add -Isrc/conf and cope with renamed files
* src/hash.c: Remove bogus include of libxml/threads.h
2009-09-21 14:41:46 +01:00