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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* Cavium Networks Internet Protocol (IP)
*
* Definitions for the Internet Protocol (IP) support.
*
* <hr>$Revision: 49448 $<hr>
*
*/
#ifndef __CVMIP_H__
#define __CVMIP_H__
/*
* IP protocol values (1 byte)
*
*/
#define CVMIP_PROTO_ICMP 1 /* Internet Control Message Protocol */
#define CVMIP_PROTO_TCP 6 /* Transmission Control Protocol */
#define CVMIP_PROTO_UDP 17 /* User Datagram Protocol */
#define CVMIP_PROTO_ESP 50 /* Encapsulated Security Payload */
#define CVMIP_PROTO_AH 51 /* Authentication Header */
/**
* network packet header definitions
* (originally from octane_hw.h)
*
*/
/**
* UDP Packet header
*/
typedef struct {
union {
int32_t s32 ;
uint32_t u32 ;
struct {
uint16_t src_prt ;
uint16_t dst_prt ;
} s;
} prts;
uint16_t len ;
uint16_t chksum ;
} cvmip_udp_hdr_t;
/**
* TCP Packet header
*/
typedef struct {
uint16_t src_prt ;
uint16_t dst_prt ;
uint32_t seq ;
uint32_t ack_seq ;
uint32_t hlen :4;
uint32_t rsvd :6;
uint32_t urg :1;
uint32_t ack :1;
uint32_t psh :1;
uint32_t rst :1;
uint32_t syn :1;
uint32_t fin :1;
uint16_t win_sz ;
uint16_t chksum ;
uint16_t urg_ptr ;
uint32_t junk ;
} cvmip_tcp_hdr_t;
/**
* L4 Packet header
*/
typedef union {
cvmip_udp_hdr_t udphdr;
cvmip_tcp_hdr_t tcphdr;
struct {
union {
int32_t s32 ;
uint32_t u32 ;
struct {
uint16_t src_prt;
uint16_t dst_prt;
} s;
} prts;
uint16_t len ;
uint16_t chksum ;
char dat[48] ; // 48 for IPv6 with no extension hdrs, 64 for IPv4 without options
} udp;
struct {
uint16_t src_prt ;
uint16_t dst_prt ;
uint32_t seq ;
uint32_t ack_seq ;
uint32_t hlen :4;
uint32_t rsvd :6;
uint32_t urg :1;
uint32_t ack :1;
uint32_t psh :1;
uint32_t rst :1;
uint32_t syn :1;
uint32_t fin :1;
uint16_t win_sz ;
uint16_t chksum ;
uint16_t urg_ptr ;
char dat[36] ; // 36 for IPv6 with no extension hdrs, 52 for IPv6 without options
} tcp;
} cvmip_l4_info_t;
/**
* Special struct to add a pad to IPv4 header
*/
typedef struct {
uint32_t pad;
uint32_t version : 4;
uint32_t hl : 4;
uint8_t tos ;
uint16_t len ;
uint16_t id ;
uint32_t mbz : 1;
uint32_t df : 1;
uint32_t mf : 1;
uint32_t off :13;
uint8_t ttl ;
uint8_t protocol;
uint16_t chksum ;
union {
uint64_t u64;
struct {
uint32_t src;
uint32_t dst;
} s;
} src_dst;
} cvmip_ipv4_hdr_t;
/**
* IPv6 Packet header
*/
typedef struct {
uint32_t version : 4;
uint32_t v6class : 8;
uint32_t flow :20;
uint16_t len ; // includes extension headers plus payload (add 40 to be equiv to v4 len field)
uint8_t next_hdr; // equivalent to the v4 protocol field
uint8_t hop_lim ; // equivalent to the v4 TTL field
union {
uint64_t u64[4];
struct {
uint64_t src[2];
uint64_t dst[2];
} s;
} src_dst;
} cvmip_ipv6_hdr_t;
#endif /* __CVMIP_H__ */
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