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/* vim:ts=8:sts=8:sw=4:noai:noexpandtab
*
* Internet header for protocol version 4, RFC 791.
*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 4. Neither the name of the University 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 IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Copyright (c) 1996-1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#if !defined (__PGM_IMPL_FRAMEWORK_H_INSIDE__) && !defined (PGM_COMPILATION)
# error "Only <framework.h> can be included directly."
#endif
#ifndef __PGM_IMPL_IP_H__
#define __PGM_IMPL_IP_H__
#ifndef _WIN32
# include <netinet/in.h>
#endif
#include <sys/param.h>
#include <pgm/types.h>
PGM_BEGIN_DECLS
/* Byte alignment for packet memory maps.
* NB: Solaris and OpenSolaris don't support #pragma pack(push) even on x86.
*/
#if defined( __GNUC__ ) && !defined( sun )
# pragma pack(push)
#endif
#pragma pack(1)
/* RFC 791 */
/* nb: first four bytes are forced bitfields for win32 "feature" */
struct pgm_ip
{
#if (defined( sun ) && defined( _BIT_FIELDS_LTOH )) || (!defined( sun ) && __BYTE_ORDER == __LITTLE_ENDIAN)
unsigned ip_hl:4; /* header length */
unsigned ip_v:4; /* version */
#else
unsigned ip_v:4; /* version */
unsigned ip_hl:4; /* header length */
#endif
unsigned ip_tos:8; /* type of service */
unsigned ip_len:16; /* total length */
uint16_t ip_id; /* identification */
uint16_t ip_off; /* fragment offset field */
uint8_t ip_ttl; /* time to live */
uint8_t ip_p; /* protocol */
uint16_t ip_sum; /* checksum */
struct in_addr ip_src, ip_dst; /* source and dest address */
};
PGM_STATIC_ASSERT(sizeof(struct pgm_ip) == 20);
/* RFC 2460 */
#ifdef ip6_vfc
# undef ip6_vfc
#endif
#ifdef ip6_plen
# undef ip6_plen
#endif
#ifdef ip6_nxt
# undef ip6_nxt
#endif
#ifdef ip6_hops
# undef ip6_hops
#endif
struct pgm_ip6_hdr
{
uint32_t ip6_vfc; /* version:4, traffic class:8, flow label:20 */
uint16_t ip6_plen; /* payload length: packet length - 40 */
uint8_t ip6_nxt; /* next header type */
uint8_t ip6_hops; /* hop limit */
struct in6_addr ip6_src, ip6_dst; /* source and dest address */
};
PGM_STATIC_ASSERT(sizeof(struct pgm_ip6_hdr) == 40);
#define PGM_IPOPT_EOL 0 /* end of option list */
#define PGM_IPOPT_NOP 1 /* no operation */
#define PGM_IPOPT_RR 7 /* record packet route */
#define PGM_IPOPT_TS 68 /* timestamp */
#define PGM_IPOPT_SECURITY 130 /* provide s, c, h, tcc */
#define PGM_IPOPT_LSRR 131 /* loose source route */
#define PGM_IPOPT_ESO 133
#define PGM_IPOPT_CIPSO 134
#define PGM_IPOPT_SATID 136 /* satnet id */
#define PGM_IPOPT_SSRR 137 /* strict source route */
#define PGM_IPOPT_RA 148 /* router alert */
/* RFC 768 */
struct pgm_udphdr
{
uint16_t uh_sport; /* source port */
uint16_t uh_dport; /* destination port */
uint16_t uh_ulen; /* udp length */
uint16_t uh_sum; /* udp checksum */
};
PGM_STATIC_ASSERT(sizeof(struct pgm_udphdr) == 8);
#if defined( __GNUC__ ) && !defined( sun )
# pragma pack(pop)
#else
# pragma pack()
#endif
PGM_END_DECLS
#endif /* __PGM_IMPL_IP_H__ */
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