diff options
| author | Lorenzo Colitti <lorenzo@google.com> | 2011-03-10 20:24:12 -0800 |
|---|---|---|
| committer | Lorenzo Colitti <lorenzo@google.com> | 2011-03-11 16:40:27 -0800 |
| commit | a0b2620b8eb2026e4e400f8bffda4e95f15f4e07 (patch) | |
| tree | dc2140d25a8e69c2e2b3b3ef0bd3281f95889910 /net/ipv4/tcp_ipv4.c | |
| parent | 5c58e03b81e1ac1231f1ae68e4611c31f428f2f9 (diff) | |
net: Support nuking IPv6 sockets as well as IPv4.
On Linux, when an interface goes down all its IPv6
addresses are deleted, so relying on knowing the previous
IPv6 addresses on the interface is brittle. Instead,
support nuking all sockets that are bound to IP addresses
that are not configured and up on the system. This
behaviour is triggered by specifying the unspecified
address (:: or 0.0.0.0). If an IP address is specified, the
behaviour is unchanged, except the ioctl now supports IPv6
as well as IPv4.
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index c3306fe20f8f..020766292bb0 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1969,49 +1969,6 @@ 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. */ |