summaryrefslogtreecommitdiffstats
path: root/include/net/tcp.h
diff options
context:
space:
mode:
authorChangli Gao <xiaosuo@gmail.com>2010-06-12 14:01:43 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-15 11:56:19 -0700
commita3433f35a55f7604742cae620c6dc6edfc70db6a (patch)
tree4ce6d169e402c03a48319a9db4055cc31df00d42 /include/net/tcp.h
parentf350a0a87374418635689471606454abc7beaa3a (diff)
downloadop-kernel-dev-a3433f35a55f7604742cae620c6dc6edfc70db6a.zip
op-kernel-dev-a3433f35a55f7604742cae620c6dc6edfc70db6a.tar.gz
tcp: unify tcp flag macros
unify tcp flag macros: TCPHDR_FIN, TCPHDR_SYN, TCPHDR_RST, TCPHDR_PSH, TCPHDR_ACK, TCPHDR_URG, TCPHDR_ECE and TCPHDR_CWR. TCBCB_FLAG_* are replaced with the corresponding TCPHDR_*. Signed-off-by: Changli Gao <xiaosuo@gmail.com> ---- include/net/tcp.h | 24 ++++++------- net/ipv4/tcp.c | 8 ++-- net/ipv4/tcp_input.c | 2 - net/ipv4/tcp_output.c | 59 ++++++++++++++++----------------- net/netfilter/nf_conntrack_proto_tcp.c | 32 ++++++----------- net/netfilter/xt_TCPMSS.c | 4 -- 6 files changed, 58 insertions(+), 71 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tcp.h')
-rw-r--r--include/net/tcp.h24
1 files changed, 11 insertions, 13 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5731664..9e68e25 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -602,6 +602,17 @@ extern u32 __tcp_select_window(struct sock *sk);
*/
#define tcp_time_stamp ((__u32)(jiffies))
+#define tcp_flag_byte(th) (((u_int8_t *)th)[13])
+
+#define TCPHDR_FIN 0x01
+#define TCPHDR_SYN 0x02
+#define TCPHDR_RST 0x04
+#define TCPHDR_PSH 0x08
+#define TCPHDR_ACK 0x10
+#define TCPHDR_URG 0x20
+#define TCPHDR_ECE 0x40
+#define TCPHDR_CWR 0x80
+
/* This is what the send packet queuing engine uses to pass
* TCP per-packet control information to the transmission
* code. We also store the host-order sequence numbers in
@@ -620,19 +631,6 @@ struct tcp_skb_cb {
__u32 end_seq; /* SEQ + FIN + SYN + datalen */
__u32 when; /* used to compute rtt's */
__u8 flags; /* TCP header flags. */
-
- /* NOTE: These must match up to the flags byte in a
- * real TCP header.
- */
-#define TCPCB_FLAG_FIN 0x01
-#define TCPCB_FLAG_SYN 0x02
-#define TCPCB_FLAG_RST 0x04
-#define TCPCB_FLAG_PSH 0x08
-#define TCPCB_FLAG_ACK 0x10
-#define TCPCB_FLAG_URG 0x20
-#define TCPCB_FLAG_ECE 0x40
-#define TCPCB_FLAG_CWR 0x80
-
__u8 sacked; /* State flags for SACK/FACK. */
#define TCPCB_SACKED_ACKED 0x01 /* SKB ACK'd by a SACK block */
#define TCPCB_SACKED_RETRANS 0x02 /* SKB retransmitted */
OpenPOWER on IntegriCloud