mac80211: add beacon filtering support

[safe/jmp/linux-2.6] / include / net / tcp.h

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0366a55..e54c76d 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -481,7 +481,16 @@ static inline void tcp_clear_xmit_timers(struct sock *sk)
 }
 
 extern unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu);
-extern unsigned int tcp_current_mss(struct sock *sk, int large);
+extern unsigned int tcp_current_mss(struct sock *sk);
+
+/* Bound MSS / TSO packet size with the half of the window */
+static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize)
+{
+       if (tp->max_window && pktsize > (tp->max_window >> 1))
+               return max(tp->max_window >> 1, 68U - tp->tcp_header_len);
+       else
+               return pktsize;
+}
 
 /* tcp.c */
 extern void tcp_get_info(struct sock *, struct tcp_info *);
@@ -822,15 +831,15 @@ static inline void tcp_push_pending_frames(struct sock *sk)
 {
        struct tcp_sock *tp = tcp_sk(sk);
 
-       __tcp_push_pending_frames(sk, tcp_current_mss(sk, 1), tp->nonagle);
+       __tcp_push_pending_frames(sk, tcp_current_mss(sk), tp->nonagle);
 }
 
-static inline void tcp_init_wl(struct tcp_sock *tp, u32 ack, u32 seq)
+static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq)
 {
        tp->snd_wl1 = seq;
 }
 
-static inline void tcp_update_wl(struct tcp_sock *tp, u32 ack, u32 seq)
+static inline void tcp_update_wl(struct tcp_sock *tp, u32 seq)
 {
        tp->snd_wl1 = seq;
 }
@@ -926,7 +935,6 @@ extern void tcp_done(struct sock *sk);
 static inline void tcp_sack_reset(struct tcp_options_received *rx_opt)
 {
        rx_opt->dsack = 0;
-       rx_opt->eff_sacks = 0;
        rx_opt->num_sacks = 0;
 }
 
@@ -998,11 +1006,21 @@ static inline int tcp_fin_time(const struct sock *sk)
        return fin_timeout;
 }
 
-static inline int tcp_paws_check(const struct tcp_options_received *rx_opt, int rst)
+static inline int tcp_paws_check(const struct tcp_options_received *rx_opt,
+                                int paws_win)
 {
-       if ((s32)(rx_opt->rcv_tsval - rx_opt->ts_recent) >= 0)
-               return 0;
-       if (get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS)
+       if ((s32)(rx_opt->ts_recent - rx_opt->rcv_tsval) <= paws_win)
+               return 1;
+       if (unlikely(get_seconds() >= rx_opt->ts_recent_stamp + TCP_PAWS_24DAYS))
+               return 1;
+
+       return 0;
+}
+
+static inline int tcp_paws_reject(const struct tcp_options_received *rx_opt,
+                                 int rst)
+{
+       if (tcp_paws_check(rx_opt, 0))
                return 0;
 
        /* RST segments are not recommended to carry timestamp,