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author | Felix Fietkau <nbd@openwrt.org> | 2010-06-14 11:00:30 +0000 |
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committer | Felix Fietkau <nbd@openwrt.org> | 2010-06-14 11:00:30 +0000 |
commit | b6fb8fd82131e12518ad05921f9994eeb1143001 (patch) | |
tree | c019a2ae14806f18c767eae96b3420c5a42d7246 /package/broadcom-wl-old/src/driver/proto/bcmtcp.h | |
parent | efa4f944363ae632afee1d9bb185391558ba56c9 (diff) | |
download | master-31e0f0ae-b6fb8fd82131e12518ad05921f9994eeb1143001.tar.gz master-31e0f0ae-b6fb8fd82131e12518ad05921f9994eeb1143001.tar.bz2 master-31e0f0ae-b6fb8fd82131e12518ad05921f9994eeb1143001.zip |
rename broadcom-wl to broadcom-wl-old
SVN-Revision: 21794
Diffstat (limited to 'package/broadcom-wl-old/src/driver/proto/bcmtcp.h')
-rw-r--r-- | package/broadcom-wl-old/src/driver/proto/bcmtcp.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/package/broadcom-wl-old/src/driver/proto/bcmtcp.h b/package/broadcom-wl-old/src/driver/proto/bcmtcp.h new file mode 100644 index 0000000000..ab7c2bceb0 --- /dev/null +++ b/package/broadcom-wl-old/src/driver/proto/bcmtcp.h @@ -0,0 +1,67 @@ +/* + * 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 + * + */ + +#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_ */ |