210 lines
5.9 KiB
C
210 lines
5.9 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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/**
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* @file
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*
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* Cavium Inc. Internet Protocol (IP)
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*
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* Definitions for the Internet Protocol (IP) support.
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*
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* <hr>$Revision: 70030 $<hr>
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*
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*/
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#ifndef __CVMIP_H__
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#define __CVMIP_H__
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/*
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* IP protocol values (1 byte)
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*
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*/
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#define CVMIP_PROTO_ICMP 1 /* Internet Control Message Protocol */
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#define CVMIP_PROTO_TCP 6 /* Transmission Control Protocol */
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#define CVMIP_PROTO_UDP 17 /* User Datagram Protocol */
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#define CVMIP_PROTO_ESP 50 /* Encapsulated Security Payload */
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#define CVMIP_PROTO_AH 51 /* Authentication Header */
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/**
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* network packet header definitions
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* (originally from octane_hw.h)
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*
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*/
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/**
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* UDP Packet header
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*/
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typedef struct {
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union {
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int32_t s32 ;
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uint32_t u32 ;
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struct {
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uint16_t src_prt ;
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uint16_t dst_prt ;
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} s;
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} prts;
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uint16_t len ;
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uint16_t chksum ;
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} cvmip_udp_hdr_t;
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/**
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* TCP Packet header
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*/
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typedef struct {
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uint16_t src_prt ;
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uint16_t dst_prt ;
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uint32_t seq ;
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uint32_t ack_seq ;
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uint32_t hlen :4;
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uint32_t rsvd :6;
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uint32_t urg :1;
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uint32_t ack :1;
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uint32_t psh :1;
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uint32_t rst :1;
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uint32_t syn :1;
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uint32_t fin :1;
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uint16_t win_sz ;
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uint16_t chksum ;
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uint16_t urg_ptr ;
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uint32_t junk ;
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} cvmip_tcp_hdr_t;
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/**
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* L4 Packet header
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*/
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typedef union {
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cvmip_udp_hdr_t udphdr;
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cvmip_tcp_hdr_t tcphdr;
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struct {
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union {
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int32_t s32 ;
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uint32_t u32 ;
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struct {
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uint16_t src_prt;
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uint16_t dst_prt;
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} s;
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} prts;
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uint16_t len ;
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uint16_t chksum ;
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char dat[48] ; // 48 for IPv6 with no extension hdrs, 64 for IPv4 without options
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} udp;
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struct {
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uint16_t src_prt ;
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uint16_t dst_prt ;
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uint32_t seq ;
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uint32_t ack_seq ;
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uint32_t hlen :4;
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uint32_t rsvd :6;
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uint32_t urg :1;
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uint32_t ack :1;
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uint32_t psh :1;
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uint32_t rst :1;
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uint32_t syn :1;
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uint32_t fin :1;
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uint16_t win_sz ;
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uint16_t chksum ;
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uint16_t urg_ptr ;
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char dat[36] ; // 36 for IPv6 with no extension hdrs, 52 for IPv6 without options
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} tcp;
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} cvmip_l4_info_t;
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/**
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* Special struct to add a pad to IPv4 header
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*/
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typedef struct {
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uint32_t pad;
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uint32_t version : 4;
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uint32_t hl : 4;
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uint8_t tos ;
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uint16_t len ;
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uint16_t id ;
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uint32_t mbz : 1;
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uint32_t df : 1;
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uint32_t mf : 1;
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uint32_t off :13;
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uint8_t ttl ;
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uint8_t protocol;
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uint16_t chksum ;
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union {
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uint64_t u64;
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struct {
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uint32_t src;
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uint32_t dst;
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} s;
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} src_dst;
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} cvmip_ipv4_hdr_t;
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/**
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* IPv6 Packet header
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*/
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typedef struct {
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uint32_t version : 4;
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uint32_t v6class : 8;
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uint32_t flow :20;
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uint16_t len ; // includes extension headers plus payload (add 40 to be equiv to v4 len field)
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uint8_t next_hdr; // equivalent to the v4 protocol field
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uint8_t hop_lim ; // equivalent to the v4 TTL field
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union {
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uint64_t u64[4];
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struct {
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uint64_t src[2];
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uint64_t dst[2];
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} s;
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} src_dst;
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} cvmip_ipv6_hdr_t;
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#endif /* __CVMIP_H__ */
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