diff options
| -rw-r--r-- | block.c | 32 | ||||
| -rw-r--r-- | blockdev.c | 13 | ||||
| -rw-r--r-- | hmp.c | 2 | ||||
| -rw-r--r-- | include/block/block.h | 3 | ||||
| -rw-r--r-- | qapi-schema.json | 9 | ||||
| -rw-r--r-- | qmp-commands.hx | 3 |
6 files changed, 54 insertions, 8 deletions
@@ -3309,6 +3309,38 @@ BlockDeviceInfoList *bdrv_named_nodes_list(void) return list; } +BlockDriverState *bdrv_lookup_bs(const char *device, + const char *node_name, + Error **errp) +{ + BlockDriverState *bs = NULL; + + if ((!device && !node_name) || (device && node_name)) { + error_setg(errp, "Use either device or node-name but not both"); + return NULL; + } + + if (device) { + bs = bdrv_find(device); + + if (!bs) { + error_set(errp, QERR_DEVICE_NOT_FOUND, device); + return NULL; + } + + return bs; + } + + bs = bdrv_find_node(node_name); + + if (!bs) { + error_set(errp, QERR_DEVICE_NOT_FOUND, node_name); + return NULL; + } + + return bs; +} + BlockDriverState *bdrv_next(BlockDriverState *bs) { if (!bs) { diff --git a/blockdev.c b/blockdev.c index 0bfe38027b..2f4065e2cd 100644 --- a/blockdev.c +++ b/blockdev.c @@ -1481,14 +1481,19 @@ void qmp_eject(const char *device, bool has_force, bool force, Error **errp) eject_device(bs, force, errp); } -void qmp_block_passwd(const char *device, const char *password, Error **errp) +void qmp_block_passwd(bool has_device, const char *device, + bool has_node_name, const char *node_name, + const char *password, Error **errp) { + Error *local_err = NULL; BlockDriverState *bs; int err; - bs = bdrv_find(device); - if (!bs) { - error_set(errp, QERR_DEVICE_NOT_FOUND, device); + bs = bdrv_lookup_bs(has_device ? device : NULL, + has_node_name ? node_name : NULL, + &local_err); + if (error_is_set(&local_err)) { + error_propagate(errp, local_err); return; } @@ -871,7 +871,7 @@ void hmp_block_passwd(Monitor *mon, const QDict *qdict) const char *password = qdict_get_str(qdict, "password"); Error *errp = NULL; - qmp_block_passwd(device, password, &errp); + qmp_block_passwd(true, device, false, NULL, password, &errp); hmp_handle_error(mon, &errp); } diff --git a/include/block/block.h b/include/block/block.h index 13654ede8b..b4a77e6cff 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -380,6 +380,9 @@ const char *bdrv_get_format_name(BlockDriverState *bs); BlockDriverState *bdrv_find(const char *name); BlockDriverState *bdrv_find_node(const char *node_name); BlockDeviceInfoList *bdrv_named_nodes_list(void); +BlockDriverState *bdrv_lookup_bs(const char *device, + const char *node_name, + Error **errp); BlockDriverState *bdrv_next(BlockDriverState *bs); void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs), void *opaque); diff --git a/qapi-schema.json b/qapi-schema.json index b619f019ee..3f48ae9be4 100644 --- a/qapi-schema.json +++ b/qapi-schema.json @@ -1678,7 +1678,11 @@ # determine which ones are encrypted, set the passwords with this command, and # then start the guest with the @cont command. # -# @device: the name of the device to set the password on +# Either @device or @node-name must be set but not both. +# +# @device: #optional the name of the block backend device to set the password on +# +# @node-name: #optional graph node name to set the password on (Since 2.0) # # @password: the password to use for the device # @@ -1692,7 +1696,8 @@ # # Since: 0.14.0 ## -{ 'command': 'block_passwd', 'data': {'device': 'str', 'password': 'str'} } +{ 'command': 'block_passwd', 'data': {'*device': 'str', + '*node-name': 'str', 'password': 'str'} } ## # @balloon: diff --git a/qmp-commands.hx b/qmp-commands.hx index 11b44c51b7..5492eb061b 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -1503,7 +1503,7 @@ EQMP { .name = "block_passwd", - .args_type = "device:B,password:s", + .args_type = "device:s?,node-name:s?,password:s", .mhandler.cmd_new = qmp_marshal_input_block_passwd, }, @@ -1516,6 +1516,7 @@ Set the password of encrypted block devices. Arguments: - "device": device name (json-string) +- "node-name": name in the block driver state graph (json-string) - "password": password (json-string) Example: |