[SK_BUFF]: Introduce skb_mac_header()

[deliverable/linux.git] / net / ipv4 / netfilter / ip_conntrack_proto_tcp.c

diff --git a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
index fa35b49fe2fa6c69dfc91a81b83fd5e0046a2067..7ff11977eb4d51bcd42fb39c6e9feda57d5a5f5e 100644 (file)
--- a/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
+++ b/net/ipv4/netfilter/ip_conntrack_proto_tcp.c
@@ -20,7 +20,6 @@
  */
 
 #include <linux/types.h>
-#include <linux/sched.h>
 #include <linux/timer.h>
 #include <linux/netfilter.h>
 #include <linux/module.h>
@@ -516,11 +515,10 @@ static void tcp_sack(const struct sk_buff *skb,
 
        /* Fast path for timestamp-only option */
        if (length == TCPOLEN_TSTAMP_ALIGNED*4
-           && *(__be32 *)ptr ==
-               __constant_htonl((TCPOPT_NOP << 24)
-                                | (TCPOPT_NOP << 16)
-                                | (TCPOPT_TIMESTAMP << 8)
-                                | TCPOLEN_TIMESTAMP))
+           && *(__be32 *)ptr == htonl((TCPOPT_NOP << 24)
+                                      | (TCPOPT_NOP << 16)
+                                      | (TCPOPT_TIMESTAMP << 8)
+                                      | TCPOLEN_TIMESTAMP))
                return;
 
        while (length > 0) {
@@ -813,8 +811,10 @@ void ip_conntrack_tcp_update(struct sk_buff *skb,
 static const u8 tcp_valid_flags[(TH_FIN|TH_SYN|TH_RST|TH_PUSH|TH_ACK|TH_URG) + 1] =
 {
        [TH_SYN]                        = 1,
-       [TH_SYN|TH_ACK]                 = 1,
        [TH_SYN|TH_PUSH]                = 1,
+       [TH_SYN|TH_URG]                 = 1,
+       [TH_SYN|TH_PUSH|TH_URG]         = 1,
+       [TH_SYN|TH_ACK]                 = 1,
        [TH_SYN|TH_ACK|TH_PUSH]         = 1,
        [TH_RST]                        = 1,
        [TH_RST|TH_ACK]                 = 1,