Added logical volume storage pool driver

This commit is contained in:
Daniel P. Berrange 2008-02-20 15:45:33 +00:00
parent e39438e869
commit ac736602fd
8 changed files with 671 additions and 0 deletions

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@ -1,3 +1,13 @@
Wed Feb 20 10:39:27 EST 2008 Daniel P. Berrange <berrange@redhat.com>
* configure.in: Added checks for LVM tools
* docs/storage/pool-logical.xml: Example XML description
* libvirt.spec.in: Added dep on LVM tools
* po/POTFILES.in: Added storage_backend_logical.c
* src/Makefile.am, src/storage_backend.c,
src/storage_backend_logical.c, src/storage_backend_logical.h:
Added logical volume backend
Wed Feb 20 10:32:27 EST 2008 Daniel P. Berrange <berrange@redhat.com>
* configure.in: Add checks for mount/unmount/qemu-img/qcow-create

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@ -559,6 +559,8 @@ dnl
AC_ARG_WITH(storage-fs,
[ --with-storage-fs with FileSystem backend for the storage driver (on)],[],[with_storage_fs=check])
AC_ARG_WITH(storage-lvm,
[ --with-storage-lvm with LVM backend for the storage driver (on)],[],[with_storage_lvm=check])
if test "$with_storage_fs" = "yes" -o "$with_storage_fs" = "check"; then
AC_PATH_PROG(MOUNT, [mount], [], [$PATH:/sbin:/usr/sbin])
@ -598,6 +600,61 @@ if test -n "$QCOW_CREATE" ; then
fi
if test "$with_storage_lvm" = "yes" -o "$with_storage_lvm" = "check"; then
AC_PATH_PROG(PVCREATE, [pvcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGCREATE, [vgcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(LVCREATE, [lvcreate], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(PVREMOVE, [pvremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGREMOVE, [vgremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(LVREMOVE, [lvremove], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGCHANGE, [vgchange], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(PVS, [pvs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(VGS, [vgs], [], [$PATH:/sbin:/usr/sbin])
AC_PATH_PROG(LVS, [lvs], [], [$PATH:/sbin:/usr/sbin])
if test "$with_storage_lvm" = "yes" ; then
if test -z "$PVCREATE" ; then AC_MSG_ERROR(We need pvcreate for LVM storage driver) ; fi
if test -z "$VGCREATE" ; then AC_MSG_ERROR(We need vgcreate for LVM storage driver) ; fi
if test -z "$LVCREATE" ; then AC_MSG_ERROR(We need lvcreate for LVM storage driver) ; fi
if test -z "$PVREMOVE" ; then AC_MSG_ERROR(We need pvremove for LVM storage driver) ; fi
if test -z "$VGREMOVE" ; then AC_MSG_ERROR(We need vgremove for LVM storage driver) ; fi
if test -z "$LVREMOVE" ; then AC_MSG_ERROR(We need lvremove for LVM storage driver) ; fi
if test -z "$VGCHANGE" ; then AC_MSG_ERROR(We need vgchange for LVM storage driver) ; fi
if test -z "$PVS" ; then AC_MSG_ERROR(We need pvs for LVM storage driver) ; fi
if test -z "$VGS" ; then AC_MSG_ERROR(We need vgs for LVM storage driver) ; fi
if test -z "$LVS" ; then AC_MSG_ERROR(We need lvs for LVM storage driver) ; fi
else
if test -z "$PVCREATE" ; then with_storage_lvm=no ; fi
if test -z "$VGCREATE" ; then with_storage_lvm=no ; fi
if test -z "$LVCREATE" ; then with_storage_lvm=no ; fi
if test -z "$PVREMOVE" ; then with_storage_lvm=no ; fi
if test -z "$VGREMOVE" ; then with_storage_lvm=no ; fi
if test -z "$LVREMOVE" ; then with_storage_lvm=no ; fi
if test -z "VGCHANGE" ; then with_storage_lvm=no ; fi
if test -z "$PVS" ; then with_storage_lvm=no ; fi
if test -z "$VGS" ; then with_storage_lvm=no ; fi
if test -z "$LVS" ; then with_storage_lvm=no ; fi
if test "$with_storage_lvm" = "check" ; then with_storage_lvm=yes ; fi
fi
if test "$with_storage_lvm" = "yes" ; then
AC_DEFINE_UNQUOTED(WITH_STORAGE_LVM, 1, [whether LVM backend for storage driver is enabled])
AC_DEFINE_UNQUOTED([PVCREATE],["$PVCREATE"],[Location of pvcreate program])
AC_DEFINE_UNQUOTED([VGCREATE],["$VGCREATE"],[Location of vgcreate program])
AC_DEFINE_UNQUOTED([LVCREATE],["$LVCREATE"],[Location of lvcreate program])
AC_DEFINE_UNQUOTED([PVREMOVE],["$PVREMOVE"],[Location of pvcreate program])
AC_DEFINE_UNQUOTED([VGREMOVE],["$VGREMOVE"],[Location of vgcreate program])
AC_DEFINE_UNQUOTED([LVREMOVE],["$LVREMOVE"],[Location of lvcreate program])
AC_DEFINE_UNQUOTED([VGCHANGE],["$VGCHANGE"],[Location of vgchange program])
AC_DEFINE_UNQUOTED([PVS],["$PVS"],[Location of pvs program])
AC_DEFINE_UNQUOTED([VGS],["$VGS"],[Location of vgs program])
AC_DEFINE_UNQUOTED([LVS],["$LVS"],[Location of lvs program])
fi
fi
AM_CONDITIONAL(WITH_STORAGE_LVM, [test "$with_storage_lvm" = "yes"])
dnl
dnl check for python
dnl
@ -811,6 +868,7 @@ AC_MSG_NOTICE([])
AC_MSG_NOTICE([ Dir: yes])
AC_MSG_NOTICE([ FS: $with_storage_fs])
AC_MSG_NOTICE([ NetFS: $with_storage_fs])
AC_MSG_NOTICE([ LVM: $with_storage_lvm])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([Libraries])
AC_MSG_NOTICE([])

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@ -49,6 +49,8 @@ Requires: /usr/bin/qemu-img
# From Xen RPMs
Requires: /usr/sbin/qcow-create
%endif
# For LVM drivers
Requires: lvm2
BuildRequires: xen-devel
BuildRequires: libxml2-devel
BuildRequires: readline-devel
@ -73,6 +75,8 @@ BuildRequires: /usr/bin/qemu-img
# From Xen RPMs
BuildRequires: /usr/sbin/qcow-create
%endif
# For LVM drivers
BuildRequires: lvm2
Obsoletes: libvir
ExclusiveArch: i386 x86_64 ia64

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@ -12,6 +12,7 @@ src/qemu_driver.c
src/remote_internal.c
src/storage_backend.c
src/storage_backend_fs.c
src/storage_backend_logical.c
src/storage_conf.c
src/storage_driver.c
src/sexpr.c

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@ -68,6 +68,14 @@ CLIENT_SOURCES = \
SERVER_SOURCES = \
../qemud/remote_protocol.c ../qemud/remote_protocol.h
if WITH_STORAGE_LVM
CLIENT_SOURCES += storage_backend_logical.h storage_backend_logical.c
else
EXTRA_DIST += storage_backend_logical.h storage_backend_logical.c
endif
libvirt_la_SOURCES = $(CLIENT_SOURCES) $(SERVER_SOURCES)
libvirt_la_LIBADD = $(LIBXML_LIBS) $(GNUTLS_LIBS) $(SASL_LIBS) $(SELINUX_LIBS) \
@CYGWIN_EXTRA_LIBADD@ ../gnulib/lib/libgnu.la

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@ -36,6 +36,9 @@
#if HAVE_SELINUX
#include <selinux/selinux.h>
#endif
#if WITH_STORAGE_LVM
#include "storage_backend_logical.h"
#endif
#include "util.h"
@ -48,6 +51,9 @@ static virStorageBackendPtr backends[] = {
&virStorageBackendFileSystem,
&virStorageBackendNetFileSystem,
#endif
#if WITH_STORAGE_LVM
&virStorageBackendLogical,
#endif
};
@ -90,6 +96,10 @@ virStorageBackendFromString(const char *type) {
if (STREQ(type, "netfs"))
return VIR_STORAGE_POOL_NETFS;
#endif
#if WITH_STORAGE_LVM
if (STREQ(type, "logical"))
return VIR_STORAGE_POOL_LOGICAL;
#endif
virStorageReportError(NULL, VIR_ERR_INTERNAL_ERROR,
_("unknown storage backend type %s"), type);
@ -106,6 +116,10 @@ virStorageBackendToString(int type) {
return "fs";
case VIR_STORAGE_POOL_NETFS:
return "netfs";
#endif
#if WITH_STORAGE_LVM
case VIR_STORAGE_POOL_LOGICAL:
return "logical";
#endif
}

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@ -0,0 +1,531 @@
/*
* storage_backend_logvol.c: storage backend for logical volume handling
*
* Copyright (C) 2007-2008 Red Hat, Inc.
* Copyright (C) 2007-2008 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <stdio.h>
#include <regex.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include "storage_backend_logical.h"
#include "storage_conf.h"
#include "util.h"
#define PV_BLANK_SECTOR_SIZE 512
enum {
VIR_STORAGE_POOL_LOGICAL_LVM2 = 0,
};
static int
virStorageBackendLogicalPoolFormatFromString(virConnectPtr conn,
const char *format) {
if (format == NULL)
return VIR_STORAGE_POOL_LOGICAL_LVM2;
if (STREQ(format, "lvm2"))
return VIR_STORAGE_POOL_LOGICAL_LVM2;
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("unsupported pool format %s"), format);
return -1;
}
static const char *
virStorageBackendLogicalPoolFormatToString(virConnectPtr conn,
int format) {
switch (format) {
case VIR_STORAGE_POOL_LOGICAL_LVM2:
return "lvm2";
}
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("unsupported pool format %d"), format);
return NULL;
}
static int
virStorageBackendLogicalSetActive(virConnectPtr conn,
virStoragePoolObjPtr pool,
int on)
{
const char *cmdargv[4];
cmdargv[0] = VGCHANGE;
cmdargv[1] = on ? "-ay" : "-an";
cmdargv[2] = pool->def->name;
cmdargv[3] = NULL;
if (virRun(conn, (char**)cmdargv, NULL) < 0)
return -1;
return 0;
}
static int
virStorageBackendLogicalMakeVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
char **const groups,
void *data)
{
virStorageVolDefPtr vol = NULL;
virStorageVolSourceExtentPtr tmp;
unsigned long long offset, size, length;
/* See if we're only looking for a specific volume */
if (data != NULL) {
vol = data;
if (STRNEQ(vol->name, groups[0]))
return 0;
}
/* Or filling in more data on an existing volume */
if (vol == NULL)
vol = virStorageVolDefFindByName(pool, groups[0]);
/* Or a completely new volume */
if (vol == NULL) {
if ((vol = calloc(1, sizeof(*vol))) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("volume"));
return -1;
}
if ((vol->name = strdup(groups[0])) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("volume"));
return -1;
}
vol->next = pool->volumes;
pool->volumes = vol;
pool->nvolumes++;
}
if (vol->target.path == NULL) {
if ((vol->target.path = malloc(strlen(pool->def->target.path) +
1 + strlen(vol->name) + 1)) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("volume"));
return -1;
}
strcpy(vol->target.path, pool->def->target.path);
strcat(vol->target.path, "/");
strcat(vol->target.path, vol->name);
}
if (vol->key == NULL &&
(vol->key = strdup(groups[1])) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("volume"));
return -1;
}
if (virStorageBackendUpdateVolInfo(conn, vol, 1) < 0)
return -1;
/* Finally fill in extents information */
if ((tmp = realloc(vol->source.extents, sizeof(*tmp)
* (vol->source.nextent + 1))) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("extents"));
return -1;
}
vol->source.extents = tmp;
if ((vol->source.extents[vol->source.nextent].path =
strdup(groups[2])) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("extents"));
return -1;
}
if (virStrToLong_ull(groups[3], NULL, 10, &offset) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("malformed volume extent offset value"));
return -1;
}
if (virStrToLong_ull(groups[4], NULL, 10, &length) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("malformed volume extent length value"));
return -1;
}
if (virStrToLong_ull(groups[5], NULL, 10, &size) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("malformed volume extent size value"));
return -1;
}
vol->source.extents[vol->source.nextent].start = offset * size;
vol->source.extents[vol->source.nextent].end = (offset * size) + length;
vol->source.nextent++;
return 0;
}
static int
virStorageBackendLogicalFindLVs(virConnectPtr conn,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol)
{
/*
* # lvs --separator : --noheadings --units b --unbuffered --nosuffix --options "lv_name,uuid,devices,seg_size,vg_extent_size" VGNAME
* RootLV:06UgP5-2rhb-w3Bo-3mdR-WeoL-pytO-SAa2ky:/dev/hda2(0):5234491392:33554432
* SwapLV:oHviCK-8Ik0-paqS-V20c-nkhY-Bm1e-zgzU0M:/dev/hda2(156):1040187392:33554432
* Test2:3pg3he-mQsA-5Sui-h0i6-HNmc-Cz7W-QSndcR:/dev/hda2(219):1073741824:33554432
* Test3:UB5hFw-kmlm-LSoX-EI1t-ioVd-h7GL-M0W8Ht:/dev/hda2(251):2181038080:33554432
* Test3:UB5hFw-kmlm-LSoX-EI1t-ioVd-h7GL-M0W8Ht:/dev/hda2(187):1040187392:33554432
*
* Pull out name & uuid, device, device extent start #, segment size, extent size.
*
* NB can be multiple rows per volume if they have many extents
*/
const char *regexes[] = {
"^\\s*(\\S+):(\\S+):(\\S+)\\((\\S+)\\):(\\S+):(\\S+)\\s*$"
};
int vars[] = {
6
};
const char *prog[] = {
LVS, "--separator", ":", "--noheadings", "--units", "b",
"--unbuffered", "--nosuffix", "--options",
"lv_name,uuid,devices,seg_size,vg_extent_size",
pool->def->name, NULL
};
return virStorageBackendRunProgRegex(conn,
pool,
prog,
1,
regexes,
vars,
virStorageBackendLogicalMakeVol,
vol);
}
static int
virStorageBackendLogicalRefreshPoolFunc(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool ATTRIBUTE_UNUSED,
char **const groups,
void *data ATTRIBUTE_UNUSED)
{
if (virStrToLong_ull(groups[0], NULL, 10, &pool->def->capacity) < 0)
return -1;
if (virStrToLong_ull(groups[1], NULL, 10, &pool->def->available) < 0)
return -1;
pool->def->allocation = pool->def->capacity - pool->def->available;
return 0;
}
static int
virStorageBackendLogicalStartPool(virConnectPtr conn,
virStoragePoolObjPtr pool)
{
if (virStorageBackendLogicalSetActive(conn, pool, 1) < 0)
return -1;
return 0;
}
static int
virStorageBackendLogicalBuildPool(virConnectPtr conn,
virStoragePoolObjPtr pool,
unsigned int flags ATTRIBUTE_UNUSED)
{
const char **vgargv;
const char *pvargv[3];
int n = 0, i, fd;
char zeros[PV_BLANK_SECTOR_SIZE];
memset(zeros, 0, sizeof(zeros));
/* XXX multiple pvs */
if ((vgargv = malloc(sizeof(char*) * (1))) == NULL) {
virStorageReportError(conn, VIR_ERR_NO_MEMORY, _("command line"));
return -1;
}
vgargv[n++] = VGCREATE;
vgargv[n++] = pool->def->name;
pvargv[0] = PVCREATE;
pvargv[2] = NULL;
for (i = 0 ; i < pool->def->source.ndevice ; i++) {
/*
* LVM requires that the first sector is blanked if using
* a whole disk as a PV. So we just blank them out regardless
* rather than trying to figure out if we're a disk or partition
*/
if ((fd = open(pool->def->source.devices[i].path, O_WRONLY)) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot open device %s"),
strerror(errno));
goto cleanup;
}
if (write(fd, zeros, sizeof(zeros)) != sizeof(zeros)) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot clear device header %s"),
strerror(errno));
close(fd);
goto cleanup;
}
if (close(fd) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot close device %s"),
strerror(errno));
goto cleanup;
}
/*
* Initialize the physical volume because vgcreate is not
* clever enough todo this for us :-(
*/
vgargv[n++] = pool->def->source.devices[i].path;
pvargv[1] = pool->def->source.devices[i].path;
if (virRun(conn, (char**)pvargv, NULL) < 0)
goto cleanup;
}
vgargv[n++] = NULL;
/* Now create the volume group itself */
if (virRun(conn, (char**)vgargv, NULL) < 0)
goto cleanup;
free(vgargv);
return 0;
cleanup:
free(vgargv);
return -1;
}
static int
virStorageBackendLogicalRefreshPool(virConnectPtr conn,
virStoragePoolObjPtr pool)
{
/*
* # vgs --separator : --noheadings --units b --unbuffered --nosuffix --options "vg_size,vg_free" VGNAME
* 10603200512:4328521728
*
* Pull out size & free
*/
const char *regexes[] = {
"^\\s*(\\S+):(\\S+)\\s*$"
};
int vars[] = {
2
};
const char *prog[] = {
VGS, "--separator", ":", "--noheadings", "--units", "b", "--unbuffered",
"--nosuffix", "--options", "vg_size,vg_free",
pool->def->name, NULL
};
/* Get list of all logical volumes */
if (virStorageBackendLogicalFindLVs(conn, pool, NULL) < 0) {
virStoragePoolObjClearVols(pool);
return -1;
}
/* Now get basic volgrp metadata */
if (virStorageBackendRunProgRegex(conn,
pool,
prog,
1,
regexes,
vars,
virStorageBackendLogicalRefreshPoolFunc,
NULL) < 0) {
virStoragePoolObjClearVols(pool);
return -1;
}
return 0;
}
/* XXX should we set LVM to inactive ? Probably not - it would
* suck if this were your LVM root fs :-)
*/
#if 0
static int
virStorageBackendLogicalStopPool(virConnectPtr conn,
virStoragePoolObjPtr pool)
{
if (virStorageBackendLogicalSetActive(conn, pool, 0) < 0)
return -1;
return 0;
}
#endif
static int
virStorageBackendLogicalDeletePool(virConnectPtr conn,
virStoragePoolObjPtr pool,
unsigned int flags ATTRIBUTE_UNUSED)
{
const char *cmdargv[] = {
VGREMOVE, "-f", pool->def->name, NULL
};
if (virRun(conn, (char**)cmdargv, NULL) < 0)
return -1;
/* XXX clear the PVs too ? ie pvremove ? probably ought to */
return 0;
}
static int
virStorageBackendLogicalDeleteVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol,
unsigned int flags);
static int
virStorageBackendLogicalCreateVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol)
{
int fd = -1;
char size[100];
const char *cmdargv[] = {
LVCREATE, "--name", vol->name, "-L", size,
pool->def->target.path, NULL
};
snprintf(size, sizeof(size)-1, "%lluK", vol->capacity/1024);
size[sizeof(size)-1] = '\0';
if (virRun(conn, (char**)cmdargv, NULL) < 0)
return -1;
if ((fd = open(vol->target.path, O_RDONLY)) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot read path '%s': %s"),
vol->target.path, strerror(errno));
goto cleanup;
}
/* We can only chown/grp if root */
if (getuid() == 0) {
if (fchown(fd, vol->target.perms.uid, vol->target.perms.gid) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot set file owner '%s': %s"),
vol->target.path, strerror(errno));
goto cleanup;
}
}
if (fchmod(fd, vol->target.perms.mode) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot set file mode '%s': %s"),
vol->target.path, strerror(errno));
goto cleanup;
}
if (close(fd) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot close file '%s': %s"),
vol->target.path, strerror(errno));
goto cleanup;
}
fd = -1;
/* Fill in data about this new vol */
if (virStorageBackendLogicalFindLVs(conn, pool, vol) < 0) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot find newly created volume '%s': %s"),
vol->target.path, strerror(errno));
goto cleanup;
}
return 0;
cleanup:
if (fd != -1)
close(fd);
virStorageBackendLogicalDeleteVol(conn, pool, vol, 0);
return -1;
}
static int
virStorageBackendLogicalDeleteVol(virConnectPtr conn,
virStoragePoolObjPtr pool ATTRIBUTE_UNUSED,
virStorageVolDefPtr vol,
unsigned int flags ATTRIBUTE_UNUSED)
{
const char *cmdargv[] = {
LVREMOVE, "-f", vol->target.path, NULL
};
if (virRun(conn, (char**)cmdargv, NULL) < 0)
return -1;
return 0;
}
virStorageBackend virStorageBackendLogical = {
.type = VIR_STORAGE_POOL_LOGICAL,
.startPool = virStorageBackendLogicalStartPool,
.buildPool = virStorageBackendLogicalBuildPool,
.refreshPool = virStorageBackendLogicalRefreshPool,
#if 0
.stopPool = virStorageBackendLogicalStopPool,
#endif
.deletePool = virStorageBackendLogicalDeletePool,
.createVol = virStorageBackendLogicalCreateVol,
.deleteVol = virStorageBackendLogicalDeleteVol,
.poolOptions = {
.formatFromString = virStorageBackendLogicalPoolFormatFromString,
.formatToString = virStorageBackendLogicalPoolFormatToString,
},
.volType = VIR_STORAGE_VOL_BLOCK,
};
/*
* vim: set tabstop=4:
* vim: set shiftwidth=4:
* vim: set expandtab:
*/
/*
* Local variables:
* indent-tabs-mode: nil
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 4
* End:
*/

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@ -0,0 +1,45 @@
/*
* storage_backend_logical.h: storage backend for logical volume handling
*
* Copyright (C) 2007-2008 Red Hat, Inc.
* Copyright (C) 2007-2008 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __VIR_STORAGE_BACKEND_LOGICAL_H__
#define __VIR_STORAGE_BACKEND_LOGICAL_H__
#include "storage_backend.h"
extern virStorageBackend virStorageBackendLogical;
#endif /* __VIR_STORAGE_BACKEND_LOGVOL_H__ */
/*
* vim: set tabstop=4:
* vim: set shiftwidth=4:
* vim: set expandtab:
*/
/*
* Local variables:
* indent-tabs-mode: nil
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 4
* End:
*/