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tcp: unify tcp flag macros

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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>
This commit is contained in:
Changli Gao 2010-06-12 14:01:43 +00:00 • committed by David S. Miller
parent f350a0a873
commit a3433f35a5
6 changed files with 58 additions and 71 deletions
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24
include/net/tcp.h
View file

@ -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 */