Fix tunnel port problem for 2.6.26

sources/2.6.26/connect.c

@@ -1347,13 +1347,17 @@ cifs_parse_mount_options(char *options, const char *devname,
 static struct cifsSesInfo *
 cifs_find_tcp_session(struct in_addr *target_ip_addr,
 		      struct in6_addr *target_ip6_addr,
-		      char *userName, struct TCP_Server_Info **psrvTcp)
+		      char *userName, unsigned short int port,
+		      struct TCP_Server_Info **psrvTcp)
 {
 	struct list_head *tmp;
 	struct cifsSesInfo *ses;
 
 	*psrvTcp = NULL;
 
+	if (!port)
+		port = CIFS_PORT;
+
 	read_lock(&GlobalSMBSeslock);
 	list_for_each(tmp, &GlobalSMBSessionList) {
 		ses = list_entry(tmp, struct cifsSesInfo, cifsSessionList);
@@ -1361,11 +1365,13 @@ cifs_find_tcp_session(struct in_addr *target_ip_addr,
 			continue;
 
 		if (target_ip_addr &&
-		    ses->server->addr.sockAddr.sin_addr.s_addr != target_ip_addr->s_addr)
+		    ((ses->server->addr.sockAddr.sin_addr.s_addr != target_ip_addr->s_addr)
+		     || (ses->server->addr.sockAddr.sin_port != htons(port))))
 				continue;
 		else if (target_ip6_addr &&
-			 memcmp(&ses->server->addr.sockAddr6.sin6_addr,
-				target_ip6_addr, sizeof(*target_ip6_addr)))
+			 (memcmp(&ses->server->addr.sockAddr6.sin6_addr,
+				target_ip6_addr, sizeof(*target_ip6_addr)) ||
+			  (ses->server->addr.sockAddr6.sin6_port != htons(port))))
 				continue;
 		/* BB lock server and tcp session; increment use count here?? */
 
@@ -1490,7 +1496,7 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
 {
 	int rc = 0;
 	int connected = 0;
-	__be16 orig_port = 0;
+	int orig_port_error = 0;
 
 	if (*csocket == NULL) {
 		rc = sock_create_kern(PF_INET, SOCK_STREAM,
@@ -1513,13 +1519,11 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
 				sizeof(struct sockaddr_in), 0);
 		if (rc >= 0)
 			connected = 1;
+		else
+			orig_port_error = 1;
 	}
 
-	if (!connected) {
-		/* save original port so we can retry user specified port
-			later if fall back ports fail this time  */
-		orig_port = psin_server->sin_port;
-
+	if (!orig_port_error && !connected) {
 		/* do not retry on the same port we just failed on */
 		if (psin_server->sin_port != htons(CIFS_PORT)) {
 			psin_server->sin_port = htons(CIFS_PORT);
@@ -1531,7 +1535,8 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
 				connected = 1;
 		}
 	}
-	if (!connected) {
+
+	if (!orig_port_error && !connected) {
 		psin_server->sin_port = htons(RFC1001_PORT);
 		rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
 					      psin_server,
@@ -1543,8 +1548,6 @@ ipv4_connect(struct sockaddr_in *psin_server, struct socket **csocket,
 	/* give up here - unless we want to retry on different
 		protocol families some day */
 	if (!connected) {
-		if (orig_port)
-			psin_server->sin_port = orig_port;
 		cFYI(1, ("Error %d connecting to server via ipv4", rc));
 		sock_release(*csocket);
 		*csocket = NULL;
@@ -1621,8 +1624,8 @@ static int
 ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
 {
 	int rc = 0;
+	int orig_port_error = 0;
 	int connected = 0;
-	__be16 orig_port = 0;
 
 	if (*csocket == NULL) {
 		rc = sock_create_kern(PF_INET6, SOCK_STREAM,
@@ -1646,13 +1649,11 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
 				sizeof(struct sockaddr_in6), 0);
 		if (rc >= 0)
 			connected = 1;
+		else
+			orig_port_error = 1;
 	}
 
-	if (!connected) {
-		/* save original port so we can retry user specified port
-			later if fall back ports fail this time  */
-
-		orig_port = psin_server->sin6_port;
+	if (!orig_port_error && !connected) {
 		/* do not retry on the same port we just failed on */
 		if (psin_server->sin6_port != htons(CIFS_PORT)) {
 			psin_server->sin6_port = htons(CIFS_PORT);
@@ -1664,7 +1665,8 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
 				connected = 1;
 		}
 	}
-	if (!connected) {
+
+	if (!orig_port_error && !connected) {
 		psin_server->sin6_port = htons(RFC1001_PORT);
 		rc = (*csocket)->ops->connect(*csocket, (struct sockaddr *)
 				 psin_server, sizeof(struct sockaddr_in6), 0);
@@ -1675,8 +1677,6 @@ ipv6_connect(struct sockaddr_in6 *psin_server, struct socket **csocket)
 	/* give up here - unless we want to retry on different
 		protocol families some day */
 	if (!connected) {
-		if (orig_port)
-			psin_server->sin6_port = orig_port;
 		cFYI(1, ("Error %d connecting to server via ipv6", rc));
 		sock_release(*csocket);
 		*csocket = NULL;
@@ -1917,12 +1917,12 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
 	if (address_type == AF_INET)
 		existingCifsSes = cifs_find_tcp_session(&sin_server.sin_addr,
 			NULL /* no ipv6 addr */,
-			volume_info.username, &srvTcp);
+			volume_info.username, volume_info.port, &srvTcp);
 	else if (address_type == AF_INET6) {
 		cFYI(1, ("looking for ipv6 address"));
 		existingCifsSes = cifs_find_tcp_session(NULL /* no ipv4 addr */,
 			&sin_server6.sin6_addr,
-			volume_info.username, &srvTcp);
+			volume_info.username, volume_info.port, &srvTcp);
 	} else {
 		rc = -EINVAL;
 		goto out;