[IPV6]: Introduce inet6_timewait_sock

Out of tcp6_timewait_sock, that now is just an aggregation of
inet_timewait_sock and inet6_timewait_sock, using tw_ipv6_offset in struct
inet_timewait_sock, that is common to the IPv6 transport protocols that use
timewait sockets, like DCCP and TCP.

tw_ipv6_offset plays the struct inet_sock pinfo6 role, i.e. for the generic
code to find the IPv6 area in a timewait sock.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 6 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2f932ce72610..cb880079daf3 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -138,14 +138,14 @@ static int __tcp_v6_check_established(struct sock *sk, const __u16 lport,
 
         /* Check TIME-WAIT sockets first. */
         sk_for_each(sk2, node, &(head + tcp_hashinfo.ehash_size)->chain) {
-                const struct tcp6_timewait_sock *tcp6tw = tcp6_twsk(sk2);
+                const struct inet6_timewait_sock *tw6 = inet6_twsk(sk2);
 
                 tw = inet_twsk(sk2);
 
                 if(*((__u32 *)&(tw->tw_dport))  == ports        &&
                    sk2->sk_family               == PF_INET6     &&
-                   ipv6_addr_equal(&tcp6tw->tw_v6_daddr, saddr) &&
-                   ipv6_addr_equal(&tcp6tw->tw_v6_rcv_saddr, daddr)     &&
+                   ipv6_addr_equal(&tw6->tw_v6_daddr, saddr)    &&
+                   ipv6_addr_equal(&tw6->tw_v6_rcv_saddr, daddr)        &&
                    sk2->sk_bound_dev_if == sk->sk_bound_dev_if) {
                         const struct tcp_timewait_sock *tcptw = tcp_twsk(sk2);
                         struct tcp_sock *tp = tcp_sk(sk);
@@ -1663,14 +1663,14 @@ static void get_timewait6_sock(struct seq_file *seq,
 {
         struct in6_addr *dest, *src;
         __u16 destp, srcp;
-        struct tcp6_timewait_sock *tcp6tw = tcp6_twsk((struct sock *)tw);
+        struct inet6_timewait_sock *tw6 = inet6_twsk((struct sock *)tw);
         int ttd = tw->tw_ttd - jiffies;
 
         if (ttd < 0)
                 ttd = 0;
 
-        dest = &tcp6tw->tw_v6_daddr;
-        src  = &tcp6tw->tw_v6_rcv_saddr;
+        dest = &tw6->tw_v6_daddr;
+        src  = &tw6->tw_v6_rcv_saddr;
         destp = ntohs(tw->tw_dport);
         srcp  = ntohs(tw->tw_sport);