[DCCP]: Fix the ACK and SEQ window variables settings
This is from a first audit, more eyeballs are more than welcome.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 02ebf1f..647e669 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -309,6 +309,16 @@
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);