tcp: Revert per-route SACK/DSACK/TIMESTAMP changes.

[safe/jmp/linux-2.6] / net / ipv6 / syncookies.c

diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 5b9af50..7208a06 100644 (file)
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -185,6 +185,13 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 
        NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_SYNCOOKIESRECV);
 
+       /* check for timestamp cookie support */
+       memset(&tcp_opt, 0, sizeof(tcp_opt));
+       tcp_parse_options(skb, &tcp_opt, &hash_location, 0);
+
+       if (tcp_opt.saw_tstamp)
+               cookie_check_timestamp(&tcp_opt);
+
        ret = NULL;
        req = inet6_reqsk_alloc(&tcp6_request_sock_ops);
        if (!req)
@@ -218,6 +225,12 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
        req->expires = 0UL;
        req->retrans = 0;
        ireq->ecn_ok            = 0;
+       ireq->snd_wscale        = tcp_opt.snd_wscale;
+       ireq->rcv_wscale        = tcp_opt.rcv_wscale;
+       ireq->sack_ok           = tcp_opt.sack_ok;
+       ireq->wscale_ok         = tcp_opt.wscale_ok;
+       ireq->tstamp_ok         = tcp_opt.saw_tstamp;
+       req->ts_recent          = tcp_opt.saw_tstamp ? tcp_opt.rcv_tsval : 0;
        treq->rcv_isn = ntohl(th->seq) - 1;
        treq->snt_isn = cookie;
 
@@ -253,21 +266,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
                        goto out_free;
        }
 
-       /* check for timestamp cookie support */
-       memset(&tcp_opt, 0, sizeof(tcp_opt));
-       tcp_parse_options(skb, &tcp_opt, &hash_location, 0, dst);
-
-       if (tcp_opt.saw_tstamp)
-               cookie_check_timestamp(&tcp_opt);
-
-       req->ts_recent          = tcp_opt.saw_tstamp ? tcp_opt.rcv_tsval : 0;
-
-       ireq->snd_wscale        = tcp_opt.snd_wscale;
-       ireq->rcv_wscale        = tcp_opt.rcv_wscale;
-       ireq->sack_ok           = tcp_opt.sack_ok;
-       ireq->wscale_ok         = tcp_opt.wscale_ok;
-       ireq->tstamp_ok         = tcp_opt.saw_tstamp;
-
        req->window_clamp = tp->window_clamp ? :dst_metric(dst, RTAX_WINDOW);
        tcp_select_initial_window(tcp_full_space(sk), req->mss,
                                  &req->rcv_wnd, &req->window_clamp,