static int virStorageBackendRBDRefreshVol(virConnectPtr conn,
virStoragePoolObjPtr pool ATTRIBUTE_UNUSED,
virStorageVolDefPtr vol)
{
virStorageBackendRBDStatePtr ptr;
ptr.cluster = NULL;
ptr.ioctx = NULL;
int ret = -1;
if (virStorageBackendRBDOpenRADOSConn(&ptr, conn, pool) < 0) {
goto cleanup;
}
if (rados_ioctx_create(ptr.cluster,
pool->def->source.name, &ptr.ioctx) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create the RBD IoCTX. Does the pool '%s' exist?"),
pool->def->source.name);
goto cleanup;
}
if (volStorageBackendRBDRefreshVolInfo(vol, pool, ptr) < 0) {
goto cleanup;
}
ret = 0;
cleanup:
virStorageBackendRBDCloseRADOSConn(ptr);
return ret;
}
static int virStorageBackendRBDRefreshVol(virConnectPtr conn,
virStoragePoolObjPtr pool ATTRIBUTE_UNUSED,
virStorageVolDefPtr vol)
{
virStorageBackendRBDState ptr;
ptr.cluster = NULL;
ptr.ioctx = NULL;
int ret = -1;
if (virStorageBackendRBDOpenRADOSConn(&ptr, conn, pool) < 0) {
goto cleanup;
}
if (virStorageBackendRBDOpenIoCTX(&ptr, pool) < 0) {
goto cleanup;
}
if (volStorageBackendRBDRefreshVolInfo(vol, pool, &ptr) < 0) {
goto cleanup;
}
ret = 0;
cleanup:
virStorageBackendRBDCloseRADOSConn(&ptr);
return ret;
}
static int virStorageBackendRBDCreateVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol)
{
virStorageBackendRBDStatePtr ptr;
ptr.cluster = NULL;
ptr.ioctx = NULL;
int order = 0;
int ret = -1;
VIR_DEBUG("Creating RBD image %s/%s with size %llu",
pool->def->source.name,
vol->name, vol->capacity);
if (virStorageBackendRBDOpenRADOSConn(&ptr, conn, pool) < 0) {
goto cleanup;
}
if (rados_ioctx_create(ptr.cluster,
pool->def->source.name,&ptr.ioctx) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create the RBD IoCTX. Does the pool '%s' exist?"),
pool->def->source.name);
goto cleanup;
}
if (vol->target.encryption != NULL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("storage pool does not support encrypted volumes"));
goto cleanup;
}
if (rbd_create(ptr.ioctx, vol->name, vol->capacity, &order) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create volume '%s/%s'"),
pool->def->source.name,
vol->name);
goto cleanup;
}
if (volStorageBackendRBDRefreshVolInfo(vol, pool, ptr) < 0) {
goto cleanup;
}
ret = 0;
cleanup:
virStorageBackendRBDCloseRADOSConn(ptr);
return ret;
}
static int virStorageBackendRBDRefreshPool(virConnectPtr conn ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool)
{
size_t max_size = 1024;
int ret = -1;
int len = -1;
int i;
char *name, *names = NULL;
virStorageBackendRBDStatePtr ptr;
ptr.cluster = NULL;
ptr.ioctx = NULL;
if (virStorageBackendRBDOpenRADOSConn(&ptr, conn, pool) < 0) {
goto cleanup;
}
if (rados_ioctx_create(ptr.cluster,
pool->def->source.name, &ptr.ioctx) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create the RBD IoCTX. Does the pool '%s' exist?"),
pool->def->source.name);
goto cleanup;
}
struct rados_cluster_stat_t stat;
if (rados_cluster_stat(ptr.cluster, &stat) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to stat the RADOS cluster"));
goto cleanup;
}
struct rados_pool_stat_t poolstat;
if (rados_ioctx_pool_stat(ptr.ioctx, &poolstat) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to stat the RADOS pool '%s'"),
pool->def->source.name);
goto cleanup;
}
pool->def->capacity = stat.kb * 1024;
pool->def->available = stat.kb_avail * 1024;
pool->def->allocation = poolstat.num_bytes;
VIR_DEBUG("Utilization of RBD pool %s: (kb: %llu kb_avail: %llu num_bytes: %llu)",
pool->def->source.name, (unsigned long long)stat.kb,
(unsigned long long)stat.kb_avail,
(unsigned long long)poolstat.num_bytes);
while (true) {
if (VIR_ALLOC_N(names, max_size) < 0)
goto out_of_memory;
len = rbd_list(ptr.ioctx, names, &max_size);
if (len >= 0)
break;
if (len != -ERANGE) {
VIR_WARN("%s", _("A problem occurred while listing RBD images"));
goto cleanup;
}
VIR_FREE(names);
}
for (i = 0, name = names; name < names + max_size; i++) {
virStorageVolDefPtr vol;
if (VIR_REALLOC_N(pool->volumes.objs, pool->volumes.count + 1) < 0) {
virStoragePoolObjClearVols(pool);
goto out_of_memory;
}
if (STREQ(name, ""))
break;
if (VIR_ALLOC(vol) < 0)
goto out_of_memory;
vol->name = strdup(name);
if (vol->name == NULL) {
VIR_FREE(vol);
goto out_of_memory;
}
name += strlen(name) + 1;
if (volStorageBackendRBDRefreshVolInfo(vol, pool, ptr) < 0) {
virStorageVolDefFree(vol);
goto cleanup;
}
pool->volumes.objs[pool->volumes.count++] = vol;
}
VIR_DEBUG("Found %d images in RBD pool %s",
pool->volumes.count, pool->def->source.name);
ret = 0;
cleanup:
VIR_FREE(names);
virStorageBackendRBDCloseRADOSConn(ptr);
return ret;
out_of_memory:
virReportOOMError();
goto cleanup;
}
static int virStorageBackendRBDCreateImage(rados_ioctx_t io,
char *name, long capacity)
{
int order = 0;
#if LIBRBD_VERSION_CODE > 260
uint64_t features = 3;
uint64_t stripe_count = 1;
uint64_t stripe_unit = 4194304;
if (rbd_create3(io, name, capacity, features, &order,
stripe_count, stripe_unit) < 0) {
#else
if (rbd_create(io, name, capacity, &order) < 0) {
#endif
return -1;
}
return 0;
}
static int
virStorageBackendRBDBuildVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol,
unsigned int flags)
{
virStorageBackendRBDState ptr;
ptr.cluster = NULL;
ptr.ioctx = NULL;
int ret = -1;
int r = 0;
VIR_DEBUG("Creating RBD image %s/%s with size %llu",
pool->def->source.name,
vol->name, vol->capacity);
virCheckFlags(0, -1);
if (virStorageBackendRBDOpenRADOSConn(&ptr, conn, pool) < 0)
goto cleanup;
if (virStorageBackendRBDOpenIoCTX(&ptr, pool) < 0)
goto cleanup;
if (vol->target.encryption != NULL) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("storage pool does not support encrypted volumes"));
goto cleanup;
}
r = virStorageBackendRBDCreateImage(ptr.ioctx, vol->name, vol->capacity);
if (r < 0) {
virReportSystemError(-r, _("failed to create volume '%s/%s'"),
pool->def->source.name,
vol->name);
goto cleanup;
}
if (volStorageBackendRBDRefreshVolInfo(vol, pool, &ptr) < 0)
goto cleanup;
ret = 0;
cleanup:
virStorageBackendRBDCloseRADOSConn(&ptr);
return ret;
}
static int virStorageBackendRBDRefreshPool(virConnectPtr conn,
virStoragePoolObjPtr pool)
{
size_t max_size = 1024;
int ret = -1;
int len = -1;
int r = 0;
char *name, *names = NULL;
virStorageBackendRBDState ptr;
ptr.cluster = NULL;
ptr.ioctx = NULL;
if (virStorageBackendRBDOpenRADOSConn(&ptr, conn, pool) < 0) {
goto cleanup;
}
if (virStorageBackendRBDOpenIoCTX(&ptr, pool) < 0) {
goto cleanup;
}
struct rados_cluster_stat_t clusterstat;
r = rados_cluster_stat(ptr.cluster, &clusterstat);
if (r < 0) {
virReportSystemError(-r, "%s", _("failed to stat the RADOS cluster"));
goto cleanup;
}
struct rados_pool_stat_t poolstat;
r = rados_ioctx_pool_stat(ptr.ioctx, &poolstat);
if (r < 0) {
virReportSystemError(-r, _("failed to stat the RADOS pool '%s'"),
pool->def->source.name);
goto cleanup;
}
pool->def->capacity = clusterstat.kb * 1024;
pool->def->available = clusterstat.kb_avail * 1024;
pool->def->allocation = poolstat.num_bytes;
VIR_DEBUG("Utilization of RBD pool %s: (kb: %llu kb_avail: %llu num_bytes: %llu)",
pool->def->source.name, (unsigned long long)clusterstat.kb,
(unsigned long long)clusterstat.kb_avail,
(unsigned long long)poolstat.num_bytes);
while (true) {
if (VIR_ALLOC_N(names, max_size) < 0)
goto cleanup;
len = rbd_list(ptr.ioctx, names, &max_size);
if (len >= 0)
break;
if (len != -ERANGE) {
VIR_WARN("%s", _("A problem occurred while listing RBD images"));
goto cleanup;
}
VIR_FREE(names);
}
for (name = names; name < names + max_size;) {
virStorageVolDefPtr vol;
if (VIR_REALLOC_N(pool->volumes.objs, pool->volumes.count + 1) < 0) {
virStoragePoolObjClearVols(pool);
goto cleanup;
}
if (STREQ(name, ""))
break;
if (VIR_ALLOC(vol) < 0)
goto cleanup;
if (VIR_STRDUP(vol->name, name) < 0) {
VIR_FREE(vol);
goto cleanup;
}
name += strlen(name) + 1;
if (volStorageBackendRBDRefreshVolInfo(vol, pool, &ptr) < 0) {
virStorageVolDefFree(vol);
goto cleanup;
}
pool->volumes.objs[pool->volumes.count++] = vol;
}
VIR_DEBUG("Found %zu images in RBD pool %s",
pool->volumes.count, pool->def->source.name);
ret = 0;
cleanup:
VIR_FREE(names);
virStorageBackendRBDCloseRADOSConn(&ptr);
return ret;
}
