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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-16 16:29:25 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-16 16:29:25 -0700 |
commit | 7a6362800cb7d1d618a697a650c7aaed3eb39320 (patch) | |
tree | 087f9bc6c13ef1fad4b392c5cf9325cd28fa8523 /net/unix/af_unix.c | |
parent | 6445ced8670f37cfc2c5e24a9de9b413dbfc788d (diff) | |
parent | ceda86a108671294052cbf51660097b6534672f5 (diff) | |
download | linux-stable-7a6362800cb7d1d618a697a650c7aaed3eb39320.tar.gz linux-stable-7a6362800cb7d1d618a697a650c7aaed3eb39320.tar.bz2 linux-stable-7a6362800cb7d1d618a697a650c7aaed3eb39320.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1480 commits)
bonding: enable netpoll without checking link status
xfrm: Refcount destination entry on xfrm_lookup
net: introduce rx_handler results and logic around that
bonding: get rid of IFF_SLAVE_INACTIVE netdev->priv_flag
bonding: wrap slave state work
net: get rid of multiple bond-related netdevice->priv_flags
bonding: register slave pointer for rx_handler
be2net: Bump up the version number
be2net: Copyright notice change. Update to Emulex instead of ServerEngines
e1000e: fix kconfig for crc32 dependency
netfilter ebtables: fix xt_AUDIT to work with ebtables
xen network backend driver
bonding: Improve syslog message at device creation time
bonding: Call netif_carrier_off after register_netdevice
bonding: Incorrect TX queue offset
net_sched: fix ip_tos2prio
xfrm: fix __xfrm_route_forward()
be2net: Fix UDP packet detected status in RX compl
Phonet: fix aligned-mode pipe socket buffer header reserve
netxen: support for GbE port settings
...
Fix up conflicts in drivers/staging/brcm80211/brcmsmac/wl_mac80211.c
with the staging updates.
Diffstat (limited to 'net/unix/af_unix.c')
-rw-r--r-- | net/unix/af_unix.c | 72 |
1 files changed, 39 insertions, 33 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index ba5b8c208498..1663e1a2efdd 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1124,7 +1124,7 @@ restart: /* Latch our state. - It is tricky place. We need to grab write lock and cannot + It is tricky place. We need to grab our state lock and cannot drop lock on peer. It is dangerous because deadlock is possible. Connect to self case and simultaneous attempt to connect are eliminated by checking socket @@ -1171,7 +1171,7 @@ restart: newsk->sk_type = sk->sk_type; init_peercred(newsk); newu = unix_sk(newsk); - newsk->sk_wq = &newu->peer_wq; + RCU_INIT_POINTER(newsk->sk_wq, &newu->peer_wq); otheru = unix_sk(other); /* copy address information from listening to new sock*/ @@ -1475,6 +1475,12 @@ restart: goto out_free; } + if (sk_filter(other, skb) < 0) { + /* Toss the packet but do not return any error to the sender */ + err = len; + goto out_free; + } + unix_state_lock(other); err = -EPERM; if (!unix_may_send(sk, other)) @@ -1561,7 +1567,6 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock, struct sock_iocb *siocb = kiocb_to_siocb(kiocb); struct sock *sk = sock->sk; struct sock *other = NULL; - struct sockaddr_un *sunaddr = msg->msg_name; int err, size; struct sk_buff *skb; int sent = 0; @@ -1584,7 +1589,6 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock, err = sk->sk_state == TCP_ESTABLISHED ? -EISCONN : -EOPNOTSUPP; goto out_err; } else { - sunaddr = NULL; err = -ENOTCONN; other = unix_peer(sk); if (!other) @@ -1987,36 +1991,38 @@ static int unix_shutdown(struct socket *sock, int mode) mode = (mode+1)&(RCV_SHUTDOWN|SEND_SHUTDOWN); - if (mode) { - unix_state_lock(sk); - sk->sk_shutdown |= mode; - other = unix_peer(sk); - if (other) - sock_hold(other); - unix_state_unlock(sk); - sk->sk_state_change(sk); - - if (other && - (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)) { - - int peer_mode = 0; - - if (mode&RCV_SHUTDOWN) - peer_mode |= SEND_SHUTDOWN; - if (mode&SEND_SHUTDOWN) - peer_mode |= RCV_SHUTDOWN; - unix_state_lock(other); - other->sk_shutdown |= peer_mode; - unix_state_unlock(other); - other->sk_state_change(other); - if (peer_mode == SHUTDOWN_MASK) - sk_wake_async(other, SOCK_WAKE_WAITD, POLL_HUP); - else if (peer_mode & RCV_SHUTDOWN) - sk_wake_async(other, SOCK_WAKE_WAITD, POLL_IN); - } - if (other) - sock_put(other); + if (!mode) + return 0; + + unix_state_lock(sk); + sk->sk_shutdown |= mode; + other = unix_peer(sk); + if (other) + sock_hold(other); + unix_state_unlock(sk); + sk->sk_state_change(sk); + + if (other && + (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET)) { + + int peer_mode = 0; + + if (mode&RCV_SHUTDOWN) + peer_mode |= SEND_SHUTDOWN; + if (mode&SEND_SHUTDOWN) + peer_mode |= RCV_SHUTDOWN; + unix_state_lock(other); + other->sk_shutdown |= peer_mode; + unix_state_unlock(other); + other->sk_state_change(other); + if (peer_mode == SHUTDOWN_MASK) + sk_wake_async(other, SOCK_WAKE_WAITD, POLL_HUP); + else if (peer_mode & RCV_SHUTDOWN) + sk_wake_async(other, SOCK_WAKE_WAITD, POLL_IN); } + if (other) + sock_put(other); + return 0; } |