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nbd: Implement bdrv_refresh_filename() 

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2014-07-18 20:24:59 +02:00 committed by Kevin Wolf
parent 74b36b2eb8
commit 2019d68b3b
1 changed files with 36 additions and 0 deletions
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36
block/nbd.c
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@ -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)