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d7ce7006 | 1 | /*\r |
2 | * Copyright (c) 1982, 1986, 1993\r | |
3 | * The Regents of the University of California. All rights reserved.\r | |
4 | *\r | |
5 | * Portions copyright (c) 1999, 2000\r | |
6 | * Intel Corporation.\r | |
7 | * All rights reserved.\r | |
8 | * \r | |
9 | * Redistribution and use in source and binary forms, with or without\r | |
10 | * modification, are permitted provided that the following conditions\r | |
11 | * are met:\r | |
12 | * \r | |
13 | * 1. Redistributions of source code must retain the above copyright\r | |
14 | * notice, this list of conditions and the following disclaimer.\r | |
15 | * \r | |
16 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
17 | * notice, this list of conditions and the following disclaimer in the\r | |
18 | * documentation and/or other materials provided with the distribution.\r | |
19 | * \r | |
20 | * 3. All advertising materials mentioning features or use of this software\r | |
21 | * must display the following acknowledgement:\r | |
22 | * \r | |
23 | * This product includes software developed by the University of\r | |
24 | * California, Berkeley, Intel Corporation, and its contributors.\r | |
25 | * \r | |
26 | * 4. Neither the name of University, Intel Corporation, or their respective\r | |
27 | * contributors may be used to endorse or promote products derived from\r | |
28 | * this software without specific prior written permission.\r | |
29 | * \r | |
30 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS, INTEL CORPORATION AND\r | |
31 | * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,\r | |
32 | * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS\r | |
33 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS,\r | |
34 | * INTEL CORPORATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,\r | |
35 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\r | |
36 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r | |
37 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\r | |
38 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\r | |
39 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\r | |
40 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r | |
41 | *\r | |
42 | * @(#)ip.h 8.2 (Berkeley) 6/1/94\r | |
43 | * $Id: ip.h,v 1.1.1.1 2006/05/30 06:12:48 hhzhou Exp $\r | |
44 | */\r | |
45 | \r | |
46 | #ifndef _NETINET_IP_H_\r | |
47 | #define _NETINET_IP_H_\r | |
48 | \r | |
49 | #ifndef _ORG_FREEBSD_\r | |
50 | #define _IP_VHL\r | |
51 | #endif\r | |
52 | \r | |
53 | /*\r | |
54 | * Definitions for internet protocol version 4.\r | |
55 | * Per RFC 791, September 1981.\r | |
56 | */\r | |
57 | #define IPVERSION 4\r | |
58 | \r | |
59 | /*\r | |
60 | * Structure of an internet header, naked of options.\r | |
61 | */\r | |
62 | struct ip {\r | |
63 | #ifdef _IP_VHL\r | |
64 | u_char ip_vhl; /* version << 4 | header length >> 2 */\r | |
65 | #else\r | |
66 | #if BYTE_ORDER == LITTLE_ENDIAN\r | |
67 | u_int ip_hl:4, /* header length */\r | |
68 | ip_v:4; /* version */\r | |
69 | #endif\r | |
70 | #if BYTE_ORDER == BIG_ENDIAN\r | |
71 | u_int ip_v:4, /* version */\r | |
72 | ip_hl:4; /* header length */\r | |
73 | #endif\r | |
74 | #endif /* not _IP_VHL */\r | |
75 | u_char ip_tos; /* type of service */\r | |
76 | u_short ip_len; /* total length */\r | |
77 | u_short ip_id; /* identification */\r | |
78 | u_short ip_off; /* fragment offset field */\r | |
79 | #define IP_RF 0x8000 /* reserved fragment flag */\r | |
80 | #define IP_DF 0x4000 /* dont fragment flag */\r | |
81 | #define IP_MF 0x2000 /* more fragments flag */\r | |
82 | #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */\r | |
83 | u_char ip_ttl; /* time to live */\r | |
84 | u_char ip_p; /* protocol */\r | |
85 | u_short ip_sum; /* checksum */\r | |
86 | struct in_addr ip_src,ip_dst; /* source and dest address */\r | |
87 | };\r | |
88 | \r | |
89 | #ifdef _IP_VHL\r | |
90 | #define IP_MAKE_VHL(v, hl) ((v) << 4 | (hl))\r | |
91 | #define IP_VHL_HL(vhl) ((vhl) & 0x0f)\r | |
92 | #define IP_VHL_V(vhl) ((vhl) >> 4)\r | |
93 | #define IP_VHL_BORING 0x45\r | |
94 | #endif\r | |
95 | \r | |
96 | #define IP_MAXPACKET 65535 /* maximum packet size */\r | |
97 | \r | |
98 | /*\r | |
99 | * Definitions for IP type of service (ip_tos)\r | |
100 | */\r | |
101 | #define IPTOS_LOWDELAY 0x10\r | |
102 | #define IPTOS_THROUGHPUT 0x08\r | |
103 | #define IPTOS_RELIABILITY 0x04\r | |
104 | #define IPTOS_MINCOST 0x02\r | |
105 | \r | |
106 | /*\r | |
107 | * Definitions for IP precedence (also in ip_tos) (hopefully unused)\r | |
108 | */\r | |
109 | #define IPTOS_PREC_NETCONTROL 0xe0\r | |
110 | #define IPTOS_PREC_INTERNETCONTROL 0xc0\r | |
111 | #define IPTOS_PREC_CRITIC_ECP 0xa0\r | |
112 | #define IPTOS_PREC_FLASHOVERRIDE 0x80\r | |
113 | #define IPTOS_PREC_FLASH 0x60\r | |
114 | #define IPTOS_PREC_IMMEDIATE 0x40\r | |
115 | #define IPTOS_PREC_PRIORITY 0x20\r | |
116 | #define IPTOS_PREC_ROUTINE 0x00\r | |
117 | \r | |
118 | /*\r | |
119 | * Definitions for options.\r | |
120 | */\r | |
121 | #define IPOPT_COPIED(o) ((o)&0x80)\r | |
122 | #define IPOPT_CLASS(o) ((o)&0x60)\r | |
123 | #define IPOPT_NUMBER(o) ((o)&0x1f)\r | |
124 | \r | |
125 | #define IPOPT_CONTROL 0x00\r | |
126 | #define IPOPT_RESERVED1 0x20\r | |
127 | #define IPOPT_DEBMEAS 0x40\r | |
128 | #define IPOPT_RESERVED2 0x60\r | |
129 | \r | |
130 | #define IPOPT_EOL 0 /* end of option list */\r | |
131 | #define IPOPT_NOP 1 /* no operation */\r | |
132 | \r | |
133 | #define IPOPT_RR 7 /* record packet route */\r | |
134 | #define IPOPT_TS 68 /* timestamp */\r | |
135 | #define IPOPT_SECURITY 130 /* provide s,c,h,tcc */\r | |
136 | #define IPOPT_LSRR 131 /* loose source route */\r | |
137 | #define IPOPT_SATID 136 /* satnet id */\r | |
138 | #define IPOPT_SSRR 137 /* strict source route */\r | |
139 | #define IPOPT_RA 148 /* router alert */\r | |
140 | \r | |
141 | /*\r | |
142 | * Offsets to fields in options other than EOL and NOP.\r | |
143 | */\r | |
144 | #define IPOPT_OPTVAL 0 /* option ID */\r | |
145 | #define IPOPT_OLEN 1 /* option length */\r | |
146 | #define IPOPT_OFFSET 2 /* offset within option */\r | |
147 | #define IPOPT_MINOFF 4 /* min value of above */\r | |
148 | \r | |
149 | /*\r | |
150 | * Time stamp option structure.\r | |
151 | */\r | |
152 | struct ip_timestamp {\r | |
153 | u_char ipt_code; /* IPOPT_TS */\r | |
154 | u_char ipt_len; /* size of structure (variable) */\r | |
155 | u_char ipt_ptr; /* index of current entry */\r | |
156 | #if BYTE_ORDER == LITTLE_ENDIAN\r | |
157 | u_int ipt_flg:4, /* flags, see below */\r | |
158 | ipt_oflw:4; /* overflow counter */\r | |
159 | #endif\r | |
160 | #if BYTE_ORDER == BIG_ENDIAN\r | |
161 | u_int ipt_oflw:4, /* overflow counter */\r | |
162 | ipt_flg:4; /* flags, see below */\r | |
163 | #endif\r | |
164 | union ipt_timestamp {\r | |
165 | n_long ipt_time[1];\r | |
166 | struct ipt_ta {\r | |
167 | struct in_addr ipt_addr;\r | |
168 | n_long ipt_time;\r | |
169 | } ipt_ta[1];\r | |
170 | } ipt_timestamp;\r | |
171 | };\r | |
172 | \r | |
173 | /* flag bits for ipt_flg */\r | |
174 | #define IPOPT_TS_TSONLY 0 /* timestamps only */\r | |
175 | #define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */\r | |
176 | #define IPOPT_TS_PRESPEC 3 /* specified modules only */\r | |
177 | \r | |
178 | /* bits for security (not byte swapped) */\r | |
179 | #define IPOPT_SECUR_UNCLASS 0x0000\r | |
180 | #define IPOPT_SECUR_CONFID 0xf135\r | |
181 | #define IPOPT_SECUR_EFTO 0x789a\r | |
182 | #define IPOPT_SECUR_MMMM 0xbc4d\r | |
183 | #define IPOPT_SECUR_RESTR 0xaf13\r | |
184 | #define IPOPT_SECUR_SECRET 0xd788\r | |
185 | #define IPOPT_SECUR_TOPSECRET 0x6bc5\r | |
186 | \r | |
187 | /*\r | |
188 | * Internet implementation parameters.\r | |
189 | */\r | |
190 | #define MAXTTL 255 /* maximum time to live (seconds) */\r | |
191 | #define IPDEFTTL 64 /* default ttl, from RFC 1340 */\r | |
192 | #define IPFRAGTTL 60 /* time to live for frags, slowhz */\r | |
193 | #define IPTTLDEC 1 /* subtracted when forwarding */\r | |
194 | \r | |
195 | #define IP_MSS 576 /* default maximum segment size */\r | |
196 | \r | |
197 | #endif\r |