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-rw-r--r--block/rbd.c150
-rw-r--r--qapi/block-core.json19
2 files changed, 118 insertions, 51 deletions
diff --git a/block/rbd.c b/block/rbd.c
index 999fea105f..1cd526bcea 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -332,71 +332,55 @@ static QemuOptsList runtime_opts = {
},
};
-static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
- QemuOpts *opts,
- Error **errp)
+/* FIXME Deprecate and remove keypairs or make it available in QMP.
+ * password_secret should eventually be configurable in opts->location. Support
+ * for it in .bdrv_open will make it work here as well. */
+static int qemu_rbd_do_create(BlockdevCreateOptions *options,
+ const char *keypairs, const char *password_secret,
+ Error **errp)
{
- Error *local_err = NULL;
- int64_t bytes = 0;
- int64_t objsize;
- int obj_order = 0;
- const char *pool, *image_name, *conf, *user, *keypairs;
- const char *secretid;
+ BlockdevCreateOptionsRbd *opts = &options->u.rbd;
rados_t cluster;
rados_ioctx_t io_ctx;
- QDict *options = NULL;
- int ret = 0;
+ int obj_order = 0;
+ int ret;
+
+ assert(options->driver == BLOCKDEV_DRIVER_RBD);
+ if (opts->location->has_snapshot) {
+ error_setg(errp, "Can't use snapshot name for image creation");
+ return -EINVAL;
+ }
- secretid = qemu_opt_get(opts, "password-secret");
+ /* TODO Remove the limitation */
+ if (opts->location->has_server) {
+ error_setg(errp, "Can't specify server for image creation");
+ return -EINVAL;
+ }
- /* Read out options */
- bytes = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
- BDRV_SECTOR_SIZE);
- objsize = qemu_opt_get_size_del(opts, BLOCK_OPT_CLUSTER_SIZE, 0);
- if (objsize) {
+ if (opts->has_cluster_size) {
+ int64_t objsize = opts->cluster_size;
if ((objsize - 1) & objsize) { /* not a power of 2? */
error_setg(errp, "obj size needs to be power of 2");
- ret = -EINVAL;
- goto exit;
+ return -EINVAL;
}
if (objsize < 4096) {
error_setg(errp, "obj size too small");
- ret = -EINVAL;
- goto exit;
+ return -EINVAL;
}
obj_order = ctz32(objsize);
}
- options = qdict_new();
- qemu_rbd_parse_filename(filename, options, &local_err);
- if (local_err) {
- ret = -EINVAL;
- error_propagate(errp, local_err);
- goto exit;
- }
-
- /*
- * Caution: while qdict_get_try_str() is fine, getting non-string
- * types would require more care. When @options come from -blockdev
- * or blockdev_add, its members are typed according to the QAPI
- * schema, but when they come from -drive, they're all QString.
- */
- pool = qdict_get_try_str(options, "pool");
- conf = qdict_get_try_str(options, "conf");
- user = qdict_get_try_str(options, "user");
- image_name = qdict_get_try_str(options, "image");
- keypairs = qdict_get_try_str(options, "=keyvalue-pairs");
-
- ret = rados_create(&cluster, user);
+ ret = rados_create(&cluster, opts->location->user);
if (ret < 0) {
error_setg_errno(errp, -ret, "error initializing");
- goto exit;
+ return ret;
}
/* try default location when conf=NULL, but ignore failure */
- ret = rados_conf_read_file(cluster, conf);
- if (conf && ret < 0) {
- error_setg_errno(errp, -ret, "error reading conf file %s", conf);
+ ret = rados_conf_read_file(cluster, opts->location->conf);
+ if (opts->location->conf && ret < 0) {
+ error_setg_errno(errp, -ret, "error reading conf file %s",
+ opts->location->conf);
ret = -EIO;
goto shutdown;
}
@@ -407,7 +391,7 @@ static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
goto shutdown;
}
- if (qemu_rbd_set_auth(cluster, secretid, errp) < 0) {
+ if (qemu_rbd_set_auth(cluster, password_secret, errp) < 0) {
ret = -EIO;
goto shutdown;
}
@@ -418,24 +402,89 @@ static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
goto shutdown;
}
- ret = rados_ioctx_create(cluster, pool, &io_ctx);
+ ret = rados_ioctx_create(cluster, opts->location->pool, &io_ctx);
if (ret < 0) {
- error_setg_errno(errp, -ret, "error opening pool %s", pool);
+ error_setg_errno(errp, -ret, "error opening pool %s",
+ opts->location->pool);
goto shutdown;
}
- ret = rbd_create(io_ctx, image_name, bytes, &obj_order);
+ ret = rbd_create(io_ctx, opts->location->image, opts->size, &obj_order);
if (ret < 0) {
error_setg_errno(errp, -ret, "error rbd create");
}
rados_ioctx_destroy(io_ctx);
+ ret = 0;
shutdown:
rados_shutdown(cluster);
+ return ret;
+}
+
+static int qemu_rbd_co_create(BlockdevCreateOptions *options, Error **errp)
+{
+ return qemu_rbd_do_create(options, NULL, NULL, errp);
+}
+
+static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
+ QemuOpts *opts,
+ Error **errp)
+{
+ BlockdevCreateOptions *create_options;
+ BlockdevCreateOptionsRbd *rbd_opts;
+ BlockdevOptionsRbd *loc;
+ Error *local_err = NULL;
+ const char *keypairs, *password_secret;
+ QDict *options = NULL;
+ int ret = 0;
+
+ create_options = g_new0(BlockdevCreateOptions, 1);
+ create_options->driver = BLOCKDEV_DRIVER_RBD;
+ rbd_opts = &create_options->u.rbd;
+
+ rbd_opts->location = g_new0(BlockdevOptionsRbd, 1);
+
+ password_secret = qemu_opt_get(opts, "password-secret");
+
+ /* Read out options */
+ rbd_opts->size = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
+ BDRV_SECTOR_SIZE);
+ rbd_opts->cluster_size = qemu_opt_get_size_del(opts,
+ BLOCK_OPT_CLUSTER_SIZE, 0);
+ rbd_opts->has_cluster_size = (rbd_opts->cluster_size != 0);
+
+ options = qdict_new();
+ qemu_rbd_parse_filename(filename, options, &local_err);
+ if (local_err) {
+ ret = -EINVAL;
+ error_propagate(errp, local_err);
+ goto exit;
+ }
+
+ /*
+ * Caution: while qdict_get_try_str() is fine, getting non-string
+ * types would require more care. When @options come from -blockdev
+ * or blockdev_add, its members are typed according to the QAPI
+ * schema, but when they come from -drive, they're all QString.
+ */
+ loc = rbd_opts->location;
+ loc->pool = g_strdup(qdict_get_try_str(options, "pool"));
+ loc->conf = g_strdup(qdict_get_try_str(options, "conf"));
+ loc->has_conf = !!loc->conf;
+ loc->user = g_strdup(qdict_get_try_str(options, "user"));
+ loc->has_user = !!loc->user;
+ loc->image = g_strdup(qdict_get_try_str(options, "image"));
+ keypairs = qdict_get_try_str(options, "=keyvalue-pairs");
+
+ ret = qemu_rbd_do_create(create_options, keypairs, password_secret, errp);
+ if (ret < 0) {
+ goto exit;
+ }
exit:
QDECREF(options);
+ qapi_free_BlockdevCreateOptions(create_options);
return ret;
}
@@ -1143,6 +1192,7 @@ static BlockDriver bdrv_rbd = {
.bdrv_file_open = qemu_rbd_open,
.bdrv_close = qemu_rbd_close,
.bdrv_reopen_prepare = qemu_rbd_reopen_prepare,
+ .bdrv_co_create = qemu_rbd_co_create,
.bdrv_co_create_opts = qemu_rbd_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_get_info = qemu_rbd_getinfo,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 9170fbf6e6..d4351877fc 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -3436,6 +3436,23 @@
'*refcount-bits': 'int' } }
##
+# @BlockdevCreateOptionsRbd:
+#
+# Driver specific image creation options for rbd/Ceph.
+#
+# @location Where to store the new image file. This location cannot
+# point to a snapshot.
+# @size Size of the virtual disk in bytes
+# @cluster-size RBD object size
+#
+# Since: 2.12
+##
+{ 'struct': 'BlockdevCreateOptionsRbd',
+ 'data': { 'location': 'BlockdevOptionsRbd',
+ 'size': 'size',
+ '*cluster-size' : 'size' } }
+
+##
# @BlockdevCreateNotSupported:
#
# This is used for all drivers that don't support creating images.
@@ -3484,7 +3501,7 @@
'qed': 'BlockdevCreateNotSupported',
'quorum': 'BlockdevCreateNotSupported',
'raw': 'BlockdevCreateNotSupported',
- 'rbd': 'BlockdevCreateNotSupported',
+ 'rbd': 'BlockdevCreateOptionsRbd',
'replication': 'BlockdevCreateNotSupported',
'sheepdog': 'BlockdevCreateNotSupported',
'ssh': 'BlockdevCreateNotSupported',
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-12 21:00:08 +0000