diff options
Diffstat (limited to 'net/phonet/socket.c')
| -rw-r--r-- | net/phonet/socket.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/net/phonet/socket.c b/net/phonet/socket.c index aca8fba099e..25f746d20c1 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -225,6 +225,101 @@ static int pn_socket_autobind(struct socket *sock) return 0; /* socket was already bound */ } +#ifdef CONFIG_PHONET_PIPECTRLR +static int pn_socket_connect(struct socket *sock, struct sockaddr *addr, + int len, int flags) +{ + struct sock *sk = sock->sk; + struct sockaddr_pn *spn = (struct sockaddr_pn *)addr; + long timeo; + int err; + + if (len < sizeof(struct sockaddr_pn)) + return -EINVAL; + if (spn->spn_family != AF_PHONET) + return -EAFNOSUPPORT; + + lock_sock(sk); + + switch (sock->state) { + case SS_UNCONNECTED: + sk->sk_state = TCP_CLOSE; + break; + case SS_CONNECTING: + switch (sk->sk_state) { + case TCP_SYN_RECV: + sock->state = SS_CONNECTED; + err = -EISCONN; + goto out; + case TCP_CLOSE: + err = -EALREADY; + if (flags & O_NONBLOCK) + goto out; + goto wait_connect; + } + break; + case SS_CONNECTED: + switch (sk->sk_state) { + case TCP_SYN_RECV: + err = -EISCONN; + goto out; + case TCP_CLOSE: + sock->state = SS_UNCONNECTED; + break; + } + break; + case SS_DISCONNECTING: + case SS_FREE: + break; + } + sk->sk_state = TCP_CLOSE; + sk_stream_kill_queues(sk); + + sock->state = SS_CONNECTING; + err = sk->sk_prot->connect(sk, addr, len); + if (err < 0) { + sock->state = SS_UNCONNECTED; + sk->sk_state = TCP_CLOSE; + goto out; + } + + err = -EINPROGRESS; +wait_connect: + if (sk->sk_state != TCP_SYN_RECV && (flags & O_NONBLOCK)) + goto out; + + timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); + release_sock(sk); + + err = -ERESTARTSYS; + timeo = wait_event_interruptible_timeout(*sk_sleep(sk), + sk->sk_state != TCP_CLOSE, + timeo); + + lock_sock(sk); + if (timeo < 0) + goto out; /* -ERESTARTSYS */ + + err = -ETIMEDOUT; + if (timeo == 0 && sk->sk_state != TCP_SYN_RECV) + goto out; + + if (sk->sk_state != TCP_SYN_RECV) { + sock->state = SS_UNCONNECTED; + err = sock_error(sk); + if (!err) + err = -ECONNREFUSED; + goto out; + } + sock->state = SS_CONNECTED; + err = 0; + +out: + release_sock(sk); + return err; +} +#endif + static int pn_socket_accept(struct socket *sock, struct socket *newsock, int flags) { @@ -393,7 +488,11 @@ const struct proto_ops phonet_stream_ops = { .owner = THIS_MODULE, .release = pn_socket_release, .bind = pn_socket_bind, +#ifdef CONFIG_PHONET_PIPECTRLR + .connect = pn_socket_connect, +#else .connect = sock_no_connect, +#endif .socketpair = sock_no_socketpair, .accept = pn_socket_accept, .getname = pn_socket_getname, |