/**
* @conn connection to report errors against
* @pool storage pool to unmount
*
* Ensure that a FS storage pool is not mounted on its target location.
* If already unmounted, this is a no-op
*
* Returns 0 if successfully unmounted, -1 on error
*/
static int
virStorageBackendFileSystemUnmount(virStoragePoolObjPtr pool) {
virCommandPtr cmd = NULL;
int ret = -1;
if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
if (pool->def->source.nhost != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Expected exactly 1 host for the storage pool"));
return -1;
}
if (pool->def->source.hosts[0].name == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source host"));
return -1;
}
if (pool->def->source.dir == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source dir"));
return -1;
}
} else {
if (pool->def->source.ndevice != 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source device"));
return -1;
}
}
/* Short-circuit if already unmounted */
if ((ret = virStorageBackendFileSystemIsMounted(pool)) != 1) {
if (ret < 0)
return -1;
else
return 0;
}
cmd = virCommandNewArgList(UMOUNT,
pool->def->target.path,
NULL);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
virCommandFree(cmd);
return ret;
}
/**
* @conn connection to report errors against
* @pool storage pool to unmount
*
* Ensure that a FS storage pool is not mounted on its target location.
* If already unmounted, this is a no-op
*
* Returns 0 if successfully unmounted, -1 on error
*/
static int
virStorageBackendFileSystemUnmount(virStoragePoolObjPtr pool) {
const char *mntargv[3];
int ret;
if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
if (pool->def->source.nhost != 1) {
virStorageReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Expected exactly 1 host for the storage pool"));
return -1;
}
if (pool->def->source.hosts[0].name == NULL) {
virStorageReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source host"));
return -1;
}
if (pool->def->source.dir == NULL) {
virStorageReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source dir"));
return -1;
}
} else {
if (pool->def->source.ndevice != 1) {
virStorageReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source device"));
return -1;
}
}
/* Short-circuit if already unmounted */
if ((ret = virStorageBackendFileSystemIsMounted(pool)) != 1) {
if (ret < 0)
return -1;
else
return 0;
}
mntargv[0] = UMOUNT;
mntargv[1] = pool->def->target.path;
mntargv[2] = NULL;
if (virRun(mntargv, NULL) < 0) {
return -1;
}
return 0;
}
static int
virStorageBackendFileSystemCheck(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool,
bool *isActive)
{
*isActive = false;
if (pool->def->type == VIR_STORAGE_POOL_DIR) {
if (access(pool->def->target.path, F_OK) == 0)
*isActive = true;
#if WITH_STORAGE_FS
} else {
int ret;
if ((ret = virStorageBackendFileSystemIsMounted(pool)) != 0) {
if (ret < 0)
return -1;
*isActive = true;
}
#endif /* WITH_STORAGE_FS */
}
return 0;
}
/**
* @conn connection to report errors against
* @pool storage pool to mount
*
* Ensure that a FS storage pool is mounted on its target location.
* If already mounted, this is a no-op
*
* Returns 0 if successfully mounted, -1 on error
*/
static int
virStorageBackendFileSystemMount(virStoragePoolObjPtr pool) {
char *src;
const char **mntargv;
/* 'mount -t auto' doesn't seem to auto determine nfs (or cifs),
* while plain 'mount' does. We have to craft separate argvs to
* accommodate this */
int netauto = (pool->def->type == VIR_STORAGE_POOL_NETFS &&
pool->def->source.format == VIR_STORAGE_POOL_NETFS_AUTO);
int glusterfs = (pool->def->type == VIR_STORAGE_POOL_NETFS &&
pool->def->source.format == VIR_STORAGE_POOL_NETFS_GLUSTERFS);
int source_index;
const char *netfs_auto_argv[] = {
MOUNT,
NULL, /* source path */
pool->def->target.path,
NULL,
};
const char *fs_argv[] = {
MOUNT,
"-t",
pool->def->type == VIR_STORAGE_POOL_FS ?
virStoragePoolFormatFileSystemTypeToString(pool->def->source.format) :
virStoragePoolFormatFileSystemNetTypeToString(pool->def->source.format),
NULL, /* Fill in shortly - careful not to add extra fields
before this */
pool->def->target.path,
NULL,
};
const char *glusterfs_argv[] = {
MOUNT,
"-t",
pool->def->type == VIR_STORAGE_POOL_FS ?
virStoragePoolFormatFileSystemTypeToString(pool->def->source.format) :
virStoragePoolFormatFileSystemNetTypeToString(pool->def->source.format),
NULL,
"-o",
"direct-io-mode=1",
pool->def->target.path,
NULL,
};
if (netauto) {
mntargv = netfs_auto_argv;
source_index = 1;
} else if (glusterfs) {
mntargv = glusterfs_argv;
source_index = 3;
} else {
mntargv = fs_argv;
source_index = 3;
}
int ret;
if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
if (pool->def->source.host.name == NULL) {
virStorageReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source host"));
return -1;
}
if (pool->def->source.dir == NULL) {
virStorageReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source path"));
return -1;
}
} else {
if (pool->def->source.ndevice != 1) {
virStorageReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source device"));
return -1;
}
}
/* Short-circuit if already mounted */
if ((ret = virStorageBackendFileSystemIsMounted(pool)) != 0) {
if (ret < 0)
return -1;
else
return 0;
}
if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
if (virAsprintf(&src, "%s:%s",
pool->def->source.host.name,
pool->def->source.dir) == -1) {
virReportOOMError();
return -1;
}
} else {
if ((src = strdup(pool->def->source.devices[0].path)) == NULL) {
virReportOOMError();
return -1;
}
}
mntargv[source_index] = src;
if (virRun(mntargv, NULL) < 0) {
VIR_FREE(src);
return -1;
}
VIR_FREE(src);
return 0;
}
/**
* @conn connection to report errors against
* @pool storage pool to mount
*
* Ensure that a FS storage pool is mounted on its target location.
* If already mounted, this is a no-op
*
* Returns 0 if successfully mounted, -1 on error
*/
static int
virStorageBackendFileSystemMount(virStoragePoolObjPtr pool) {
char *src = NULL;
/* 'mount -t auto' doesn't seem to auto determine nfs (or cifs),
* while plain 'mount' does. We have to craft separate argvs to
* accommodate this */
bool netauto = (pool->def->type == VIR_STORAGE_POOL_NETFS &&
pool->def->source.format == VIR_STORAGE_POOL_NETFS_AUTO);
bool glusterfs = (pool->def->type == VIR_STORAGE_POOL_NETFS &&
pool->def->source.format == VIR_STORAGE_POOL_NETFS_GLUSTERFS);
virCommandPtr cmd = NULL;
int ret = -1;
if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
if (pool->def->source.nhost != 1) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Expected exactly 1 host for the storage pool"));
return -1;
}
if (pool->def->source.hosts[0].name == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source host"));
return -1;
}
if (pool->def->source.dir == NULL) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source path"));
return -1;
}
} else {
if (pool->def->source.ndevice != 1) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("missing source device"));
return -1;
}
}
/* Short-circuit if already mounted */
if ((ret = virStorageBackendFileSystemIsMounted(pool)) != 0) {
virReportError(VIR_ERR_OPERATION_INVALID,
_("Target '%s' is already mounted"),
pool->def->target.path);
return -1;
}
if (pool->def->type == VIR_STORAGE_POOL_NETFS) {
if (virAsprintf(&src, "%s:%s",
pool->def->source.hosts[0].name,
pool->def->source.dir) == -1) {
virReportOOMError();
return -1;
}
} else {
if ((src = strdup(pool->def->source.devices[0].path)) == NULL) {
virReportOOMError();
return -1;
}
}
if (netauto)
cmd = virCommandNewArgList(MOUNT,
src,
pool->def->target.path,
NULL);
else if (glusterfs)
cmd = virCommandNewArgList( MOUNT,
"-t",
(pool->def->type == VIR_STORAGE_POOL_FS ?
virStoragePoolFormatFileSystemTypeToString(pool->def->source.format) :
virStoragePoolFormatFileSystemNetTypeToString(pool->def->source.format)),
src,
"-o",
"direct-io-mode=1",
pool->def->target.path,
NULL);
else
cmd = virCommandNewArgList(MOUNT,
"-t",
(pool->def->type == VIR_STORAGE_POOL_FS ?
virStoragePoolFormatFileSystemTypeToString(pool->def->source.format) :
virStoragePoolFormatFileSystemNetTypeToString(pool->def->source.format)),
src,
pool->def->target.path,
NULL);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
virCommandFree(cmd);
VIR_FREE(src);
return ret;
}