diff options
| -rw-r--r-- | net/iucv/af_iucv.c | 71 |
1 files changed, 37 insertions, 34 deletions
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index d5c5b8fd1d01..3ce0259499ed 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -90,6 +90,7 @@ do { \ static void iucv_sock_kill(struct sock *sk); static void iucv_sock_close(struct sock *sk); +static void iucv_sever_path(struct sock *, int); static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev); @@ -181,11 +182,7 @@ static int afiucv_pm_freeze(struct device *dev) case IUCV_DISCONN: case IUCV_CLOSING: case IUCV_CONNECTED: - if (iucv->path) { - err = pr_iucv->path_sever(iucv->path, NULL); - iucv_path_free(iucv->path); - iucv->path = NULL; - } + iucv_sever_path(sk, 0); break; case IUCV_OPEN: case IUCV_BOUND: @@ -194,6 +191,8 @@ static int afiucv_pm_freeze(struct device *dev) default: break; } + skb_queue_purge(&iucv->send_skb_q); + skb_queue_purge(&iucv->backlog_skb_q); } read_unlock(&iucv_sk_list.lock); return err; @@ -447,10 +446,29 @@ static void iucv_sock_kill(struct sock *sk) sock_put(sk); } +/* Terminate an IUCV path */ +static void iucv_sever_path(struct sock *sk, int with_user_data) +{ + unsigned char user_data[16]; + struct iucv_sock *iucv = iucv_sk(sk); + struct iucv_path *path = iucv->path; + + if (iucv->path) { + iucv->path = NULL; + if (with_user_data) { + low_nmcpy(user_data, iucv->src_name); + high_nmcpy(user_data, iucv->dst_name); + ASCEBC(user_data, sizeof(user_data)); + pr_iucv->path_sever(path, user_data); + } else + pr_iucv->path_sever(path, NULL); + iucv_path_free(path); + } +} + /* Close an IUCV socket */ static void iucv_sock_close(struct sock *sk) { - unsigned char user_data[16]; struct iucv_sock *iucv = iucv_sk(sk); unsigned long timeo; int err, blen; @@ -494,25 +512,14 @@ static void iucv_sock_close(struct sock *sk) sk->sk_state = IUCV_CLOSED; sk->sk_state_change(sk); - if (iucv->path) { - low_nmcpy(user_data, iucv->src_name); - high_nmcpy(user_data, iucv->dst_name); - ASCEBC(user_data, sizeof(user_data)); - pr_iucv->path_sever(iucv->path, user_data); - iucv_path_free(iucv->path); - iucv->path = NULL; - } - sk->sk_err = ECONNRESET; sk->sk_state_change(sk); iucv_skb_queue_purge(&iucv->send_skb_q); skb_queue_purge(&iucv->backlog_skb_q); - break; - default: - /* nothing to do here */ - break; + default: /* fall through */ + iucv_sever_path(sk, 1); } /* mark socket for deletion by iucv_sock_kill() */ @@ -894,11 +901,8 @@ static int iucv_sock_connect(struct socket *sock, struct sockaddr *addr, if (sk->sk_state == IUCV_DISCONN || sk->sk_state == IUCV_CLOSED) err = -ECONNREFUSED; - if (err && iucv->transport == AF_IUCV_TRANS_IUCV) { - pr_iucv->path_sever(iucv->path, NULL); - iucv_path_free(iucv->path); - iucv->path = NULL; - } + if (err && iucv->transport == AF_IUCV_TRANS_IUCV) + iucv_sever_path(sk, 0); done: release_sock(sk); @@ -1565,13 +1569,6 @@ static int iucv_sock_release(struct socket *sock) iucv_sock_close(sk); - /* Unregister with IUCV base support */ - if (iucv_sk(sk)->path) { - pr_iucv->path_sever(iucv_sk(sk)->path, NULL); - iucv_path_free(iucv_sk(sk)->path); - iucv_sk(sk)->path = NULL; - } - sock_orphan(sk); iucv_sock_kill(sk); return err; @@ -1750,8 +1747,7 @@ static int iucv_callback_connreq(struct iucv_path *path, path->msglim = iucv->msglimit; err = pr_iucv->path_accept(path, &af_iucv_handler, nuser_data, nsk); if (err) { - err = pr_iucv->path_sever(path, user_data); - iucv_path_free(path); + iucv_sever_path(nsk, 1); iucv_sock_kill(nsk); goto fail; } @@ -1828,6 +1824,7 @@ static void iucv_callback_txdone(struct iucv_path *path, struct sk_buff *list_skb = list->next; unsigned long flags; + bh_lock_sock(sk); if (!skb_queue_empty(list)) { spin_lock_irqsave(&list->lock, flags); @@ -1849,7 +1846,6 @@ static void iucv_callback_txdone(struct iucv_path *path, iucv_sock_wake_msglim(sk); } } - BUG_ON(!this); if (sk->sk_state == IUCV_CLOSING) { if (skb_queue_empty(&iucv_sk(sk)->send_skb_q)) { @@ -1857,6 +1853,7 @@ static void iucv_callback_txdone(struct iucv_path *path, sk->sk_state_change(sk); } } + bh_unlock_sock(sk); } @@ -1864,9 +1861,15 @@ static void iucv_callback_connrej(struct iucv_path *path, u8 ipuser[16]) { struct sock *sk = path->private; + if (sk->sk_state == IUCV_CLOSED) + return; + + bh_lock_sock(sk); + iucv_sever_path(sk, 1); sk->sk_state = IUCV_DISCONN; sk->sk_state_change(sk); + bh_unlock_sock(sk); } /* called if the other communication side shuts down its RECV direction; |