diff options
| author | Roshni Shah <shah.roshni@yahoo.com> | 2011-03-14 06:49:42 -0400 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2012-03-02 16:59:46 -0500 |
| commit | 2731b2eadeaa141e6f305fa8086106608112bbaa (patch) | |
| tree | 2702d45bac84073cd580ccb1bd3eafb9a000d3b6 /net/ipv4/tcp_ipv4.c | |
| parent | 6d23f5084c975be637f7d748db82116bf84d3872 (diff) | |
Add support for the i.MX53 QSB2.6.35.3-mx53-early-201103141049
This patch seems to have originated from the 11.01.00 release
from Freescale, which is no longer available except through the
gitweb interface from Freescale.
http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=commit;h=27fdf7bae11978d21e8aba09bb635f49b07edd4a
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index fe193e53af44..3c7b72437b58 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1963,6 +1963,49 @@ void tcp_v4_destroy_sock(struct sock *sk) EXPORT_SYMBOL(tcp_v4_destroy_sock); +/* + * tcp_v4_nuke_addr - destroy all sockets on the given local address + */ +void tcp_v4_nuke_addr(__u32 saddr) +{ + unsigned int bucket; + + for (bucket = 0; bucket < tcp_hashinfo.ehash_mask; bucket++) { + struct hlist_nulls_node *node; + struct sock *sk; + spinlock_t *lock = inet_ehash_lockp(&tcp_hashinfo, bucket); + +restart: + spin_lock_bh(lock); + sk_nulls_for_each(sk, node, &tcp_hashinfo.ehash[bucket].chain) { + struct inet_sock *inet = inet_sk(sk); + + if (inet->inet_rcv_saddr != saddr) + continue; + if (sysctl_ip_dynaddr && sk->sk_state == TCP_SYN_SENT) + continue; + if (sock_flag(sk, SOCK_DEAD)) + continue; + + sock_hold(sk); + spin_unlock_bh(lock); + + local_bh_disable(); + bh_lock_sock(sk); + sk->sk_err = ETIMEDOUT; + sk->sk_error_report(sk); + + tcp_done(sk); + bh_unlock_sock(sk); + local_bh_enable(); + sock_put(sk); + + goto restart; + } + spin_unlock_bh(lock); + } +} + #ifdef CONFIG_PROC_FS /* Proc filesystem TCP sock list dumping. */ |