aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/net/request_sock.h2
-rw-r--r--include/net/tcp.h4
2 files changed, 5 insertions, 1 deletions
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 0369f98e9f3a..b220b5f624de 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -45,7 +45,7 @@ struct request_sock {
struct request_sock *dl_next; /* Must be first member! */
u16 mss;
u8 retrans;
- u8 __pad;
+ u8 cookie_ts; /* syncookie: encode tcpopts in timestamp */
/* The following two fields can be easily recomputed I think -AK */
u32 window_clamp; /* window clamp at creation time */
u32 rcv_wnd; /* rcv_wnd offered first time */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 723b36851dde..7b41bb962b9c 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -442,6 +442,9 @@ extern struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
extern __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb,
__u16 *mss);
+extern __u32 cookie_init_timestamp(struct request_sock *req);
+extern void cookie_check_timestamp(struct tcp_options_received *tcp_opt);
+
/* From net/ipv6/syncookies.c */
extern struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb);
extern __u32 cookie_v6_init_sequence(struct sock *sk, struct sk_buff *skb,
@@ -956,6 +959,7 @@ static inline void tcp_openreq_init(struct request_sock *req,
struct inet_request_sock *ireq = inet_rsk(req);
req->rcv_wnd = 0; /* So that tcp_send_synack() knows! */
+ req->cookie_ts = 0;
tcp_rsk(req)->rcv_isn = TCP_SKB_CB(skb)->seq;
req->mss = rx_opt->mss_clamp;
req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0;