diff options
Diffstat (limited to 'net/ipv4/inet_timewait_sock.c')
| -rw-r--r-- | net/ipv4/inet_timewait_sock.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index d38d160faeb7..ceb577c74237 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -81,3 +81,31 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, write_unlock(&ehead->lock); } + +struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int state) +{ + struct inet_timewait_sock *tw = kmem_cache_alloc(sk->sk_prot_creator->twsk_slab, + SLAB_ATOMIC); + if (tw != NULL) { + const struct inet_sock *inet = inet_sk(sk); + + /* Give us an identity. */ + tw->tw_daddr = inet->daddr; + tw->tw_rcv_saddr = inet->rcv_saddr; + tw->tw_bound_dev_if = sk->sk_bound_dev_if; + tw->tw_num = inet->num; + tw->tw_state = TCP_TIME_WAIT; + tw->tw_substate = state; + tw->tw_sport = inet->sport; + tw->tw_dport = inet->dport; + tw->tw_family = sk->sk_family; + tw->tw_reuse = sk->sk_reuse; + tw->tw_hashent = sk->sk_hashent; + tw->tw_ipv6only = 0; + tw->tw_prot = sk->sk_prot_creator; + atomic_set(&tw->tw_refcnt, 1); + inet_twsk_dead_node_init(tw); + } + + return tw; +} |