diff options
author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-01-06 19:28:07 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2008-01-06 19:28:07 +0000 |
commit | 90fba37c49479ed4e5233dc0d348cdf7d24c9ee1 (patch) | |
tree | 58af9e3b3204308a2b7853127331f4d693e1b744 /package/broadcom-wl/src/driver/proto/bcmtcp.h | |
parent | b59f896089edf83ce4cd1951001b6cc889bdd287 (diff) |
update brcm-2.4 to 2.4.35.4, integrate new broadcom system code, update broadcom-wl to a contributed version (v4.150.10.5) - no bcm57xx support yet, will follow shortly
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10137 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/broadcom-wl/src/driver/proto/bcmtcp.h')
-rw-r--r-- | package/broadcom-wl/src/driver/proto/bcmtcp.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/package/broadcom-wl/src/driver/proto/bcmtcp.h b/package/broadcom-wl/src/driver/proto/bcmtcp.h new file mode 100644 index 000000000..832fd434c --- /dev/null +++ b/package/broadcom-wl/src/driver/proto/bcmtcp.h @@ -0,0 +1,68 @@ +/* + * Copyright 2007, Broadcom Corporation + * All Rights Reserved. + * + * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY + * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM + * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. + * + * Fundamental constants relating to TCP Protocol + * + * $Id$ + */ + +#ifndef _bcmtcp_h_ +#define _bcmtcp_h_ + +/* enable structure packing */ +#if defined(__GNUC__) +#define PACKED __attribute__((packed)) +#else +#pragma pack(1) +#define PACKED +#endif + +#define TCP_SRC_PORT_OFFSET 0 /* TCP source port offset */ +#define TCP_DEST_PORT_OFFSET 2 /* TCP dest port offset */ +#define TCP_CHKSUM_OFFSET 16 /* TCP body checksum offset */ + +/* These fields are stored in network order */ +struct bcmtcp_hdr +{ + uint16 src_port; /* Source Port Address */ + uint16 dst_port; /* Destination Port Address */ + uint32 seq_num; /* TCP Sequence Number */ + uint32 ack_num; /* TCP Sequence Number */ + uint16 hdrlen_rsvd_flags; /* Header length, reserved bits and flags */ + uint16 tcpwin; /* TCP window */ + uint16 chksum; /* Segment checksum with pseudoheader */ + uint16 urg_ptr; /* Points to seq-num of byte following urg data */ +} PACKED; + +#undef PACKED +#if !defined(__GNUC__) +#pragma pack() +#endif + +/* Byte offset of flags in TCP header */ +#define TCP_FLAGS_OFFSET 13 + +#define TCP_FLAGS_FIN 0x01 +#define TCP_FLAGS_SYN 0x02 +#define TCP_FLAGS_RST 0x03 +#define TCP_FLAGS_PSH 0x04 +#define TCP_FLAGS_ACK 0x10 +#define TCP_FLAGS_URG 0x20 +#define TCP_FLAGS_ECN 0x40 +#define TCP_FLAGS_CWR 0x80 + +#define TCP_FLAGS(tcp_hdr) (((uint8 *)(tcp_hdr))[TCP_FLAGS_OFFSET]) +#define TCP_IS_ACK(tcp_hdr) (TCP_FLAGS(tcp_hdr) & TCP_FLAGS_ACK) + +#define TCP_SRC_PORT(tcp_hdr) (ntoh16(((struct bcmtcp_hdr*)(tcp_hdr))->src_port)) +#define TCP_DST_PORT(tcp_hdr) (ntoh16(((struct bcmtcp_hdr*)(tcp_hdr))->dst_port)) +#define TCP_SEQ_NUM(tcp_hdr) (ntoh32(((struct bcmtcp_hdr*)(tcp_hdr))->seq_num)) +#define TCP_ACK_NUM(tcp_hdr) (ntoh32(((struct bcmtcp_hdr*)(tcp_hdr))->ack_num)) + +#endif /* #ifndef _bcmtcp_h_ */ |