diff options
| -rw-r--r-- | net/tipc/socket.c | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/net/tipc/socket.c b/net/tipc/socket.c index ddcb2a753aa6..1848693ebb82 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -63,6 +63,7 @@ struct tipc_sock { struct sock sk; struct tipc_port *p; + struct tipc_portid peer_name; }; #define tipc_sk(sk) ((struct tipc_sock *)(sk)) @@ -377,27 +378,29 @@ static int bind(struct socket *sock, struct sockaddr *uaddr, int uaddr_len) * @sock: socket structure * @uaddr: area for returned socket address * @uaddr_len: area for returned length of socket address - * @peer: 0 to obtain socket name, 1 to obtain peer socket name + * @peer: 0 = own ID, 1 = current peer ID, 2 = current/former peer ID * * Returns 0 on success, errno otherwise * - * NOTE: This routine doesn't need to take the socket lock since it doesn't - * access any non-constant socket information. + * NOTE: This routine doesn't need to take the socket lock since it only + * accesses socket information that is unchanging (or which changes in + * a completely predictable manner). */ static int get_name(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer) { struct sockaddr_tipc *addr = (struct sockaddr_tipc *)uaddr; - u32 portref = tipc_sk_port(sock->sk)->ref; - u32 res; + struct tipc_sock *tsock = tipc_sk(sock->sk); if (peer) { - res = tipc_peer(portref, &addr->addr.id); - if (res) - return res; + if ((sock->state != SS_CONNECTED) && + ((peer != 2) || (sock->state != SS_DISCONNECTING))) + return -ENOTCONN; + addr->addr.id.ref = tsock->peer_name.ref; + addr->addr.id.node = tsock->peer_name.node; } else { - tipc_ownidentity(portref, &addr->addr.id); + tipc_ownidentity(tsock->p->ref, &addr->addr.id); } *uaddr_len = sizeof(*addr); @@ -766,18 +769,17 @@ exit: static int auto_connect(struct socket *sock, struct tipc_msg *msg) { - struct tipc_port *tport = tipc_sk_port(sock->sk); - struct tipc_portid peer; + struct tipc_sock *tsock = tipc_sk(sock->sk); if (msg_errcode(msg)) { sock->state = SS_DISCONNECTING; return -ECONNREFUSED; } - peer.ref = msg_origport(msg); - peer.node = msg_orignode(msg); - tipc_connect2port(tport->ref, &peer); - tipc_set_portimportance(tport->ref, msg_importance(msg)); + tsock->peer_name.ref = msg_origport(msg); + tsock->peer_name.node = msg_orignode(msg); + tipc_connect2port(tsock->p->ref, &tsock->peer_name); + tipc_set_portimportance(tsock->p->ref, msg_importance(msg)); sock->state = SS_CONNECTED; return 0; } @@ -1529,9 +1531,9 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) res = tipc_create(sock_net(sock->sk), new_sock, 0); if (!res) { struct sock *new_sk = new_sock->sk; - struct tipc_port *new_tport = tipc_sk_port(new_sk); + struct tipc_sock *new_tsock = tipc_sk(new_sk); + struct tipc_port *new_tport = new_tsock->p; u32 new_ref = new_tport->ref; - struct tipc_portid id; struct tipc_msg *msg = buf_msg(buf); lock_sock(new_sk); @@ -1545,9 +1547,9 @@ static int accept(struct socket *sock, struct socket *new_sock, int flags) /* Connect new socket to it's peer */ - id.ref = msg_origport(msg); - id.node = msg_orignode(msg); - tipc_connect2port(new_ref, &id); + new_tsock->peer_name.ref = msg_origport(msg); + new_tsock->peer_name.node = msg_orignode(msg); + tipc_connect2port(new_ref, &new_tsock->peer_name); new_sock->state = SS_CONNECTED; tipc_set_portimportance(new_ref, msg_importance(msg)); |