Commit Graph

1297 Commits

Author SHA1 Message Date
Pavel Hrdina
4671f999c6 meson: src: build libvirt_storage_driver_impl.a static library
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
2020-08-03 09:27:04 +02:00
Pavel Hrdina
018f7fa8dc meson: remove '.libs' from all relevant paths
Meson doesn't use .libs directory, everything is placed directly into
directories where meson.build file is used.

In order to have working tests and running libvirt directly from GIT we
need to fix all the paths pointing '.libs' directory.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
2020-08-03 09:27:00 +02:00
Pavel Hrdina
179797ee05 meson: build everything with PIE
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
2020-08-03 09:26:39 +02:00
Pavel Hrdina
b63c979fc9 meson: remove automake specific directives
EXTRA_DIST is not relevant because meson makes a git copy when creating
dist archive so everything tracked by git is part of dist tarball.

The remaining ones are not converted to meson files as they are
automatically tracked by meson.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
2020-08-03 09:26:25 +02:00
Ján Tomko
d50b399bf8 storage: scsi: remove unused LINUX_SYSFS_SCSI_HOST_POSTFIX
Unused since its introduction.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Fixes: 81d0ffbc3b
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
2020-08-03 07:23:45 +02:00
Ján Tomko
c1945db104 storage: logical: drop unused PV_BLANK_SECTOR_SIZE
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Fixes: d942bf6e9e
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
2020-08-03 07:23:45 +02:00
Daniel P. Berrangé
bb8ccb050d conf: add control over COW for storage pool directories
The storage pool code now attempts to disable COW by default on btrfs,
but management applications may wish to override this behaviour. Thus we
introduce a concept of storage pool features:

  <features>
    <cow state='yes|no'/>
  </features>

If the <cow> feature policy is set, it will be enforced. It will always
return an hard error if COW cannot be explicitly set or unset.

Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-07-23 16:18:09 +01:00
Daniel P. Berrangé
f12b283897 storage: attempt to disable COW by default
This calls virFileSetCOW when building a pool with a request to attempt,
but not require, COW to be disabled. The effect is that nothing changes
on non-btrfs filesystems, but btrfs will get COW disabled on the
directory. This setting is then inherited by all newly created files in
the pool, avoiding the need for mgmt app to set "nocow" on a per-volume
basis.

Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-07-23 16:18:09 +01:00
Daniel P. Berrangé
e944a71f09 storage: convert to use virFileSetCOW
When disabling COW on individual files, we now use the virFileSetCOW
method. Note that this change has a slight semantic difference to the
old implementation.

The original code reported errors but returned success when disabling
COW failed.

With this new code, we will always report an error if the user requested
disabling of COW and we could not honour it, either because btrfs
returned an error, or because the filesystem is not btrfs.

Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-07-23 16:18:08 +01:00
Michal Privoznik
e71e13488d Substitute security_context_t with char *
Historically, we've used security_context_t for variables passed
to libselinux APIs. But almost 7 years ago, libselinux developers
admitted in their API that in fact, it's just a 'char *' type
[1]. Ever since then the APIs accept 'char *' instead, but they
kept the old alias just for API stability. Well, not anymore [2].

1: 9eb9c93275
2: 7a124ca275

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2020-07-15 14:31:07 +02:00
Nikolay Shirokovskiy
606e7e0318 storage: fix vstorage backend build
Add headers with declarations of  geteuid/getegid
and virGetUserName/virGetGroupName.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2020-07-13 09:27:42 +03:00
Pavel Hrdina
a073f83400 src: remove unnecessary -I$(srcdir)/secret include
Commit <894556ca813ad3c4ebb01083b7971d73b4f53c8b> moved function
virSecretGetSecretString out of secret directory but forgot to update
CFLAGS in places where the include is no longer needed.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-07-10 09:40:38 +02:00
Fangge Jin
500810f3c5 src: fix word spell typos
Signed-off-by: Fangge Jin <fjin@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-07-09 10:01:41 +02:00
Laine Stump
322727a4cb storage: eliminate unnecessary labels
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-07-08 16:36:16 -04:00
Laine Stump
f7e3610095 use g_auto() for all remaining non-g_auto() virBuffers
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-07-08 16:34:52 -04:00
Michal Privoznik
dfa0e118f7 util: Move virIsDevMapperDevice() to virdevmapper.c
When introducing virdevmapper.c (in v4.3.0-rc1~427) I didn't
realize there is a function that calls in devmapper. The function
is called virIsDevMapperDevice() and lives in virutil.c. Now that
we have a special file for handling devmapper move it there.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2020-06-15 14:50:46 +02:00
Peter Krempa
20939b037c storage_file: create: Create new images with write permission bit
The 'Create' API of the two storage file backends is used only on
code-paths where we need to format the image after creating an empty
file. Since the DAC security driver only modifies the owner of the file
and not the mode we need to create all files which are going to be
formatted with the write bit set for the user.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-05-12 06:56:09 +02:00
Michal Privoznik
fe65e9c8b5 lib: Drop needless ret variables
There are few places where a return variable is introduced (ret
or retval), but then is never changed and is then passed to
return. Well, we can return the value that the variable is
initialized to directly.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-05-05 13:08:53 +02:00
Michal Privoznik
d901fd6092 Drop needless variable
Instead of the following pattern:

  type ret;
  ...
  ret = func();
  return ret;

we can use:

  return func()

directly.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2020-05-05 11:19:34 +02:00
Andrea Bolognani
ef0fa8395f systemd: Move timeout from service files to sysconf files
This follows the example set by libvirtd, and makes it easier for
the admin to tweak the timeout or disable it altogether.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-04-03 11:50:50 +02:00
Andrea Bolognani
93c13f0d93 systemd: Add sysconf files for all daemons
While not terribly useful in general, tweaking each daemon's
timeout (or disabling it off altogether) is a valid use case which
we can very easily support while being consistent with what already
happens for libvirtd. This is a first step in that direction.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-04-03 11:50:47 +02:00
Ján Tomko
b0eea635b3 Use g_strerror instead of virStrerror
Remove lots of stack-allocated buffers.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-13 17:26:55 +01:00
Daniel P. Berrangé
5bff668dfb src: improve thread naming with human targetted names
Historically threads are given a name based on the C function,
and this name is just used inside libvirt. With OS level thread
naming this name is now visible to debuggers, but also has to
fit in 15 characters on Linux, so function names are too long
in some cases.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-03-05 12:23:04 +00:00
Ján Tomko
7e0d11be5b virsh: include virutil.h where used
Include virutil.h in all files that use it,
instead of relying on it being pulled in somehow.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-02-24 23:15:50 +01:00
Peter Krempa
c95656c995 virStorageFileGetMetadataFromFD: Remove unused 'backingFormat' argument
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-24 15:12:32 +01:00
Peter Krempa
57df35aead virStorageFileGetMetadataFromBuf: Remove 'backingFormat' argument
None of the callers actually use it.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-24 15:12:32 +01:00
Peter Krempa
fee56942e2 virStorageBackendGlusterRefreshVol: Refactor handling of backing store
Take the format of the backing store from the 'meta' object directly and
use g_steal_pointer to steal the path.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-24 15:12:32 +01:00
Peter Krempa
264b79c63a virStorageSourceNewFromBacking: Also transfer the format
When we create the new virStorageSource from the definitions stored in
the parent we should also use the 'backingStoreRawFormat' field to
populate the format.

Callers which use virStorageSourceNewFromBacking are also fixed to stop
setting the format manually.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-24 15:12:32 +01:00
Peter Krempa
35d1f5bd14 virStorageSourceUpdateCapacity: Drop 'probe' argument
Both callers pass false. Since we frown upon format probing, remove the
unused possibility to do the probing.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-24 15:12:32 +01:00
Daniel P. Berrangé
2621d48f00 gnulib: delete all gnulib integration
This deletes all trace of gnulib from libvirt. We still
have the keycodemapdb submodule to deal with. The simple
solution taken was to update it when running autogen.sh.

Previously gnulib could auto-trigger refresh when running
'make' too. We could figure out a solution for this, but
with the pending meson rewrite it isn't worth worrying
about, given how infrequently keycodemapdb changes.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-02-07 15:03:54 +00:00
Daniel P. Berrangé
bfeb56b3ad src: remove sys/wait.h from many files
Most code now uses the virProcess / virCommand APIs, so
the need for sys/wait.h is quite limited. Removing this
include removes the dependency on GNULIB providing a
dummy sys/wait.h for Windows.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-02-04 14:00:44 +00:00
Ján Tomko
0a125c7144 virBufferTrim: do not accept len
Always trim the full specified suffix.

All of the callers outside of tests were passing either
strlen or the actual length of the string.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-02-03 19:44:38 +01:00
Ján Tomko
49882b3337 Add a space before ending a comment
Also add a space after the start in some of the cases.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-01-30 12:32:03 +01:00
Daniel P. Berrangé
a464220430 src: conditionalize use of chown & stat constants
chown and some stat constants are not available on
the Windows platform.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-29 14:51:40 +00:00
Daniel P. Berrangé
d575590c52 storage: remove use of stat-time.h headers
The gnulib stat-time.h header provides wrapper functions
to hide the differences in 'struct stat' between various
platforms.

Linux and FreeBSD support the same names, except for
birthtime which Linux only provides in the new 'statx()'
syscall we're not using. macOS has completely different
naming. Since we only rely on this code in one place
we just use conditionals at time of need.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-29 14:51:39 +00:00
Daniel P. Berrangé
207709a031 libvirt: pass a directory path into drivers for embedded usage
The intent here is to allow the virt drivers to be run directly embedded
in an arbitrary process without interfering with libvirtd. To achieve
this they need to store all their configuration & state in a separate
directory tree from the main system or session libvirtd instances.

This can be useful for doing testing of the virt drivers in "make check"
without interfering with the user's own libvirtd instances.

It can also be used for applications using KVM/QEMU as a piece of
infrastructure to build an service, rather than for general purpose
OS hosting. A long standing example is libguestfs, which would prefer
if its temporary VMs did show up in the main libvirtd VM list, because
this confuses apps such as OpenStack Nova. A more recent example would
be Kata which is using KVM as a technology to build containers.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-27 11:02:16 +00:00
Pavel Hrdina
894556ca81 secret: move virSecretGetSecretString into virsecret
The function virSecretGetSecretString calls into secret driver and is
used from other hypervisors drivers and as such makes more sense in
util.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-17 15:52:37 +01:00
Daniel Henrique Barboza
05a18bbb07 storage: remove unneeded labels
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2020-01-07 16:40:41 +01:00
Daniel P. Berrangé
8812163124 src: remove unused imports of dirname.h
A few places were importing dirname.h without actually using it.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-03 15:42:13 +00:00
Daniel P. Berrangé
12d17dcc26 src: replace last_component() with g_path_get_basename()
The last_component() method is a GNULIB custom function
that returns a pointer to the base name in the path.
This is similar to g_path_get_basename() but without the
malloc. The extra malloc is no trouble for libvirt's
needs so we can use g_path_get_basename().

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-03 15:42:13 +00:00
Daniel P. Berrangé
d0312c584f src: use g_lstat() instead of lstat()
The GLib g_lstat() function provides a portable impl for
Win32.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-03 15:42:13 +00:00
Daniel P. Berrangé
ea7b20a263 util: introduce virFileDataSync
A wrapper that calls g_fsync on Win32/macOS and fdatasync
elsewhere. g_fsync is a stronger flush than we need but it
satisfies the caller's requirements & matches the approach
gnulib takes.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-03 15:42:12 +00:00
Daniel P. Berrangé
dac174ee07 src: use g_fsync for portability
The g_fsync() API provides the same Windows portability
as GNULIB does for fsync().

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-03 15:42:12 +00:00
Yi Li
546e1c112d Storage: Use errno parameter in virReportSystemError
Use errno parameter in virReportSystemError.
Remove hold function return values if don't need.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Yi Li <yili@winhong.com>
2019-12-23 14:29:46 -05:00
Yi Li
a9eaaccd22 storage: Fix volStorageBackendRBDRefreshVolInfo function return errors
Fix the return value status comparison checking for call to
volStorageBackendRBDRefreshVolInfo introduced by commit id f46d137e.

we only should fail when the return is < 0. -ENOENT, -ETIMEDOUT will
ignore according commit id f46d137e.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Yi Li <yili@winhong.com>
2019-12-23 14:29:46 -05:00
Yi Li
c898bda969 Storage: Use rc hold intermediate function return values.
most libvirt code uses 'int rc' to hold intermediate
function return values. consistent with the rest of libvirt.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Yi Li <yili@winhong.com>
2019-12-23 14:29:46 -05:00
Yi Li
dfff16a7c2 storage: Fix daemon crash on lookup storagepool by targetpath
Causing a crash when storagePoolLookupByTargetPath beacuse of
Some types of storage pool have no target elements.
Use STREQ_NULLABLE instead of STREQ
Avoids segfaults when using NULL arguments.

Core was generated by `/usr/sbin/libvirtd'.
Program terminated with signal 11, Segmentation fault.
(gdb) bt
0  0x0000ffff9e951388 in strcmp () from /lib64/libc.so.6
1  0x0000ffff92103e9c in storagePoolLookupByTargetPathCallback (
    obj=0xffff7009aab0, opaque=0xffff801058b0) at storage/storage_driver.c:1649
2  0x0000ffff9f2c52a4 in virStoragePoolObjListSearchCb (
    payload=0xffff801058b0, name=<optimized out>, opaque=<optimized out>)
    at conf/virstorageobj.c:476
3  0x0000ffff9f1f2f7c in virHashSearch (ctable=0xffff800f4f60,
    iter=iter@entry=0xffff9f2c5278 <virStoragePoolObjListSearchCb>,
    data=data@entry=0xffff95af7488, name=name@entry=0x0) at util/virhash.c:696
4  0x0000ffff9f2c64f0 in virStoragePoolObjListSearch (pools=0xffff800f2ce0,
    searcher=searcher@entry=0xffff92103e68 <storagePoolLookupByTargetPathCallback>,
     opaque=<optimized out>) at conf/virstorageobj.c:505
5  0x0000ffff92101f54 in storagePoolLookupByTargetPath (conn=0xffff5c0009f0,
path=0xffff7009a850 "/vms/images") at storage/storage_driver.c:1672

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Yi Li <yili@winhong.com>
2019-12-22 17:20:54 -05:00
Fabiano Fidêncio
6207bee80b storage: Don't check the output of virGetUserRuntimeDirectory()
virGetUserRuntimeDirectory() *never* *ever* returns NULL, making the
checks for it completely unnecessary.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-12-20 09:38:43 +01:00
Fabiano Fidêncio
87df8493d5 storage: Don't check the output of virGetUserConfigDirectory()
virGetUserConfigDirectory() *never* *ever* returns NULL, making the
checks for it completely unnecessary.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-12-20 09:38:43 +01:00
Michal Privoznik
49c6fe6201 configure: Provide OpenRC scripts for sub-daemons
There is plenty of distributions that haven't switched to
systemd nor they force their users to (Gentoo, Alpine Linux to
name a few). With the daemon split merged their only option is to
still use the monolithic daemon which will go away eventually.
Provide init scripts for these distros too.

For now, I'm not introducing config files which would correspond
to the init files except for libvirtd and virtproxyd init scripts
where it might be desirable to tweak the command line of
corresponding daemons.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-16 10:11:22 +01:00