source: trunk/minix/include/net/gen/ip_hdr.h@ 19

Last change on this file since 19 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a

File size: 1.1 KB
Line 
1/*
2server/ip/gen/ip_hdr.h
3*/
4
5#ifndef __SERVER__IP__GEN__HDR_H__
6#define __SERVER__IP__GEN__HDR_H__
7
8typedef struct ip_hdr
9{
10 u8_t ih_vers_ihl,
11 ih_tos;
12 u16_t ih_length,
13 ih_id,
14 ih_flags_fragoff;
15 u8_t ih_ttl,
16 ih_proto;
17 u16_t ih_hdr_chk;
18 ipaddr_t ih_src,
19 ih_dst;
20} ip_hdr_t;
21
22#define IH_IHL_MASK 0xf
23#define IH_VERSION_MASK 0xf
24#define IH_FRAGOFF_MASK 0x1fff
25#define IH_MORE_FRAGS 0x2000
26#define IH_DONT_FRAG 0x4000
27#define IH_FLAGS_UNUSED 0x8000
28
29#define IP_OPT_COPIED 0x80
30#define IP_OPT_NUMBER 0x1f
31
32#define IP_OPT_EOL 0x00 /* End of Options List, RFC-791 */
33#define IP_OPT_NOP 0x01 /* No Operation, RFC-791 */
34#define IP_OPT_RR 0x07 /* Record Route, RFC-791 */
35#define IP_OPT_TS 0x44 /* Timestamp, RFC-791 */
36#define IP_OPT_SEC 0x82 /* Security, RFC-1108 */
37#define IP_OPT_LSRR 0x83 /* Loose Source Route, RFC-791 */
38#define IP_OPT_SSRR 0x89 /* Strict Source Route, RFC-791 */
39#define IP_OPT_RTRALT 0x94 /* Router Alert, RFC-2113 */
40
41#define IP_OPT_RR_MIN 4
42
43#endif /* __SERVER__IP__GEN__HDR_H__ */
44
45/*
46 * $PchId: ip_hdr.h,v 1.5 2002/06/10 07:11:46 philip Exp $
47 */
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