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authorMax Reitz <mreitz@redhat.com>2014-07-18 20:24:59 +0200
committerKevin Wolf <kwolf@redhat.com>2014-08-20 14:31:56 +0200
commit2019d68b3b4bf16228779ff50c4422c07b504824 (patch)
treeabcb5f3b97254bb41e5691f47dff49b8c2b31c8f /block
parent74b36b2eb840c0f63d4ed2cfbfc8bb3c0d23cdd2 (diff)
nbd: Implement bdrv_refresh_filename()
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/nbd.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/block/nbd.c b/block/nbd.c
index 4eda0958d7..89775e1e2b 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -31,8 +31,10 @@
#include "block/block_int.h"
#include "qemu/module.h"
#include "qemu/sockets.h"
+#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qjson.h"
#include "qapi/qmp/qint.h"
+#include "qapi/qmp/qstring.h"
#include <sys/types.h>
#include <unistd.h>
@@ -338,6 +340,37 @@ static void nbd_attach_aio_context(BlockDriverState *bs,
nbd_client_session_attach_aio_context(&s->client, new_context);
}
+static void nbd_refresh_filename(BlockDriverState *bs)
+{
+ BDRVNBDState *s = bs->opaque;
+ QDict *opts = qdict_new();
+ const char *path = qemu_opt_get(s->socket_opts, "path");
+ const char *host = qemu_opt_get(s->socket_opts, "host");
+ const char *port = qemu_opt_get(s->socket_opts, "port");
+ const char *export = qemu_opt_get(s->socket_opts, "export");
+
+ qdict_put_obj(opts, "driver", QOBJECT(qstring_from_str("nbd")));
+
+ if (path) {
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd+unix:%s", path);
+ qdict_put_obj(opts, "path", QOBJECT(qstring_from_str(path)));
+ } else if (export) {
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd:%s:%s/%s", host, port, export);
+ qdict_put_obj(opts, "host", QOBJECT(qstring_from_str(host)));
+ qdict_put_obj(opts, "port", QOBJECT(qstring_from_str(port)));
+ qdict_put_obj(opts, "export", QOBJECT(qstring_from_str(export)));
+ } else {
+ snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd:%s:%s", host, port);
+ qdict_put_obj(opts, "host", QOBJECT(qstring_from_str(host)));
+ qdict_put_obj(opts, "port", QOBJECT(qstring_from_str(port)));
+ }
+
+ bs->full_open_options = opts;
+}
+
static BlockDriver bdrv_nbd = {
.format_name = "nbd",
.protocol_name = "nbd",
@@ -352,6 +385,7 @@ static BlockDriver bdrv_nbd = {
.bdrv_getlength = nbd_getlength,
.bdrv_detach_aio_context = nbd_detach_aio_context,
.bdrv_attach_aio_context = nbd_attach_aio_context,
+ .bdrv_refresh_filename = nbd_refresh_filename,
};
static BlockDriver bdrv_nbd_tcp = {
@@ -368,6 +402,7 @@ static BlockDriver bdrv_nbd_tcp = {
.bdrv_getlength = nbd_getlength,
.bdrv_detach_aio_context = nbd_detach_aio_context,
.bdrv_attach_aio_context = nbd_attach_aio_context,
+ .bdrv_refresh_filename = nbd_refresh_filename,
};
static BlockDriver bdrv_nbd_unix = {
@@ -384,6 +419,7 @@ static BlockDriver bdrv_nbd_unix = {
.bdrv_getlength = nbd_getlength,
.bdrv_detach_aio_context = nbd_detach_aio_context,
.bdrv_attach_aio_context = nbd_attach_aio_context,
+ .bdrv_refresh_filename = nbd_refresh_filename,
};
static void bdrv_nbd_init(void)