[DCCP]: Fix the ACK and SEQ window variables settings

[safe/jmp/linux-2.6] / net / dccp / ipv4.c

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 02ebf1f..647e669 100644 (file)
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -309,6 +309,16 @@ static int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
                                                            usin->sin_port);
        dccp_update_gss(sk, dp->dccps_iss);
 
+       /*
+        * SWL and AWL are initially adjusted so that they are not less than
+        * the initial Sequence Numbers received and sent, respectively:
+        *      SWL := max(GSR + 1 - floor(W/4), ISR),
+        *      AWL := max(GSS - W' + 1, ISS).
+        * These adjustments MUST be applied only at the beginning of the
+        * connection.
+        */
+       dccp_set_seqno(&dp->dccps_awl, max48(dp->dccps_awl, dp->dccps_iss));
+
        inet->id = dp->dccps_iss ^ jiffies;
 
        err = dccp_connect(sk);