@@ -92,7 +92,7 @@ typedef struct BDRVNBDState {
SocketAddress *saddr;
char *export, *tlscredsid;
QCryptoTLSCreds *tlscreds;
- const char *hostname;
+ const char *tlshostname;
char *x_dirty_bitmap;
bool alloc_depth;
@@ -1835,7 +1835,7 @@ static int nbd_process_options(BlockDriverState *bs, QDict *options,
error_setg(errp, "TLS only supported over IP sockets");
goto error;
}
- s->hostname = s->saddr->u.inet.host;
+ s->tlshostname = s->saddr->u.inet.host;
}
s->x_dirty_bitmap = g_strdup(qemu_opt_get(opts, "x-dirty-bitmap"));
@@ -1875,7 +1875,8 @@ static int nbd_open(BlockDriverState *bs, QDict *options, int flags,
}
s->conn = nbd_client_connection_new(s->saddr, true, s->export,
- s->x_dirty_bitmap, s->tlscreds);
+ s->x_dirty_bitmap, s->tlscreds,
+ s->tlshostname);
if (s->open_timeout) {
nbd_client_connection_enable_retry(s->conn);
@@ -415,7 +415,8 @@ NBDClientConnection *nbd_client_connection_new(const SocketAddress *saddr,
bool do_negotiation,
const char *export_name,
const char *x_dirty_bitmap,
- QCryptoTLSCreds *tlscreds);
+ QCryptoTLSCreds *tlscreds,
+ const char *tlshostname);
void nbd_client_connection_release(NBDClientConnection *conn);
QIOChannel *coroutine_fn
@@ -33,6 +33,7 @@ struct NBDClientConnection {
/* Initialization constants, never change */
SocketAddress *saddr; /* address to connect to */
QCryptoTLSCreds *tlscreds;
+ char *tlshostname;
NBDExportInfo initial_info;
bool do_negotiation;
bool do_retry;
@@ -77,7 +78,8 @@ NBDClientConnection *nbd_client_connection_new(const SocketAddress *saddr,
bool do_negotiation,
const char *export_name,
const char *x_dirty_bitmap,
- QCryptoTLSCreds *tlscreds)
+ QCryptoTLSCreds *tlscreds,
+ const char *tlshostname)
{
NBDClientConnection *conn = g_new(NBDClientConnection, 1);
@@ -85,6 +87,7 @@ NBDClientConnection *nbd_client_connection_new(const SocketAddress *saddr,
*conn = (NBDClientConnection) {
.saddr = QAPI_CLONE(SocketAddress, saddr),
.tlscreds = tlscreds,
+ .tlshostname = g_strdup(tlshostname),
.do_negotiation = do_negotiation,
.initial_info.request_sizes = true,
@@ -107,6 +110,7 @@ static void nbd_client_connection_do_free(NBDClientConnection *conn)
}
error_free(conn->err);
qapi_free_SocketAddress(conn->saddr);
+ g_free(conn->tlshostname);
object_unref(OBJECT(conn->tlscreds));
g_free(conn->initial_info.x_dirty_bitmap);
g_free(conn->initial_info.name);
@@ -120,6 +124,7 @@ static void nbd_client_connection_do_free(NBDClientConnection *conn)
*/
static int nbd_connect(QIOChannelSocket *sioc, SocketAddress *addr,
NBDExportInfo *info, QCryptoTLSCreds *tlscreds,
+ const char *tlshostname,
QIOChannel **outioc, Error **errp)
{
int ret;
@@ -140,7 +145,7 @@ static int nbd_connect(QIOChannelSocket *sioc, SocketAddress *addr,
}
ret = nbd_receive_negotiate(NULL, QIO_CHANNEL(sioc), tlscreds,
- tlscreds ? addr->u.inet.host : NULL,
+ tlshostname,
outioc, info, errp);
if (ret < 0) {
/*
@@ -183,7 +188,8 @@ static void *connect_thread_func(void *opaque)
ret = nbd_connect(conn->sioc, conn->saddr,
conn->do_negotiation ? &conn->updated_info : NULL,
- conn->tlscreds, &conn->ioc, &local_err);
+ conn->tlscreds, conn->tlshostname,
+ &conn->ioc, &local_err);
/*
* conn->updated_info will finally be returned to the user. Clear the
In commit a71d597b989fd701b923f09b3c20ac4fcaa55e81 Author: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Date: Thu Jun 10 13:08:00 2021 +0300 block/nbd: reuse nbd_co_do_establish_connection() in nbd_open() the use of the 'hostname' field from the BDRVNBDState struct was lost, and 'nbd_connect' just hardcoded it to match the IP socket address. This was a harmless bug at the time since we block use with anything other than IP sockets. Shortly though, we want to allow the caller to override the hostname used in the TLS certificate checks. This is to allow for TLS when doing port forwarding or tunneling. Thus we need to reinstate the passing along of the 'hostname'. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> --- block/nbd.c | 7 ++++--- include/block/nbd.h | 3 ++- nbd/client-connection.c | 12 +++++++++--- 3 files changed, 15 insertions(+), 7 deletions(-)