diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/ip.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/ip.h')
-rw-r--r-- | include/linux/ip.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/include/linux/ip.h b/include/linux/ip.h new file mode 100644 index 00000000000..8438c68591f --- /dev/null +++ b/include/linux/ip.h | |||
@@ -0,0 +1,221 @@ | |||
1 | /* | ||
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX | ||
3 | * operating system. INET is implemented using the BSD Socket | ||
4 | * interface as the means of communication with the user level. | ||
5 | * | ||
6 | * Definitions for the IP protocol. | ||
7 | * | ||
8 | * Version: @(#)ip.h 1.0.2 04/28/93 | ||
9 | * | ||
10 | * Authors: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version | ||
15 | * 2 of the License, or (at your option) any later version. | ||
16 | */ | ||
17 | #ifndef _LINUX_IP_H | ||
18 | #define _LINUX_IP_H | ||
19 | #include <asm/byteorder.h> | ||
20 | |||
21 | #define IPTOS_TOS_MASK 0x1E | ||
22 | #define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK) | ||
23 | #define IPTOS_LOWDELAY 0x10 | ||
24 | #define IPTOS_THROUGHPUT 0x08 | ||
25 | #define IPTOS_RELIABILITY 0x04 | ||
26 | #define IPTOS_MINCOST 0x02 | ||
27 | |||
28 | #define IPTOS_PREC_MASK 0xE0 | ||
29 | #define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK) | ||
30 | #define IPTOS_PREC_NETCONTROL 0xe0 | ||
31 | #define IPTOS_PREC_INTERNETCONTROL 0xc0 | ||
32 | #define IPTOS_PREC_CRITIC_ECP 0xa0 | ||
33 | #define IPTOS_PREC_FLASHOVERRIDE 0x80 | ||
34 | #define IPTOS_PREC_FLASH 0x60 | ||
35 | #define IPTOS_PREC_IMMEDIATE 0x40 | ||
36 | #define IPTOS_PREC_PRIORITY 0x20 | ||
37 | #define IPTOS_PREC_ROUTINE 0x00 | ||
38 | |||
39 | |||
40 | /* IP options */ | ||
41 | #define IPOPT_COPY 0x80 | ||
42 | #define IPOPT_CLASS_MASK 0x60 | ||
43 | #define IPOPT_NUMBER_MASK 0x1f | ||
44 | |||
45 | #define IPOPT_COPIED(o) ((o)&IPOPT_COPY) | ||
46 | #define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK) | ||
47 | #define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK) | ||
48 | |||
49 | #define IPOPT_CONTROL 0x00 | ||
50 | #define IPOPT_RESERVED1 0x20 | ||
51 | #define IPOPT_MEASUREMENT 0x40 | ||
52 | #define IPOPT_RESERVED2 0x60 | ||
53 | |||
54 | #define IPOPT_END (0 |IPOPT_CONTROL) | ||
55 | #define IPOPT_NOOP (1 |IPOPT_CONTROL) | ||
56 | #define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY) | ||
57 | #define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY) | ||
58 | #define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT) | ||
59 | #define IPOPT_RR (7 |IPOPT_CONTROL) | ||
60 | #define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY) | ||
61 | #define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY) | ||
62 | #define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY) | ||
63 | |||
64 | #define IPVERSION 4 | ||
65 | #define MAXTTL 255 | ||
66 | #define IPDEFTTL 64 | ||
67 | |||
68 | #define IPOPT_OPTVAL 0 | ||
69 | #define IPOPT_OLEN 1 | ||
70 | #define IPOPT_OFFSET 2 | ||
71 | #define IPOPT_MINOFF 4 | ||
72 | #define MAX_IPOPTLEN 40 | ||
73 | #define IPOPT_NOP IPOPT_NOOP | ||
74 | #define IPOPT_EOL IPOPT_END | ||
75 | #define IPOPT_TS IPOPT_TIMESTAMP | ||
76 | |||
77 | #define IPOPT_TS_TSONLY 0 /* timestamps only */ | ||
78 | #define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */ | ||
79 | #define IPOPT_TS_PRESPEC 3 /* specified modules only */ | ||
80 | |||
81 | #ifdef __KERNEL__ | ||
82 | #include <linux/config.h> | ||
83 | #include <linux/types.h> | ||
84 | #include <net/sock.h> | ||
85 | #include <linux/igmp.h> | ||
86 | #include <net/flow.h> | ||
87 | |||
88 | struct ip_options { | ||
89 | __u32 faddr; /* Saved first hop address */ | ||
90 | unsigned char optlen; | ||
91 | unsigned char srr; | ||
92 | unsigned char rr; | ||
93 | unsigned char ts; | ||
94 | unsigned char is_setbyuser:1, /* Set by setsockopt? */ | ||
95 | is_data:1, /* Options in __data, rather than skb */ | ||
96 | is_strictroute:1, /* Strict source route */ | ||
97 | srr_is_hit:1, /* Packet destination addr was our one */ | ||
98 | is_changed:1, /* IP checksum more not valid */ | ||
99 | rr_needaddr:1, /* Need to record addr of outgoing dev */ | ||
100 | ts_needtime:1, /* Need to record timestamp */ | ||
101 | ts_needaddr:1; /* Need to record addr of outgoing dev */ | ||
102 | unsigned char router_alert; | ||
103 | unsigned char __pad1; | ||
104 | unsigned char __pad2; | ||
105 | unsigned char __data[0]; | ||
106 | }; | ||
107 | |||
108 | #define optlength(opt) (sizeof(struct ip_options) + opt->optlen) | ||
109 | |||
110 | struct ipv6_pinfo; | ||
111 | |||
112 | struct inet_sock { | ||
113 | /* sk and pinet6 has to be the first two members of inet_sock */ | ||
114 | struct sock sk; | ||
115 | #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) | ||
116 | struct ipv6_pinfo *pinet6; | ||
117 | #endif | ||
118 | /* Socket demultiplex comparisons on incoming packets. */ | ||
119 | __u32 daddr; /* Foreign IPv4 addr */ | ||
120 | __u32 rcv_saddr; /* Bound local IPv4 addr */ | ||
121 | __u16 dport; /* Destination port */ | ||
122 | __u16 num; /* Local port */ | ||
123 | __u32 saddr; /* Sending source */ | ||
124 | __s16 uc_ttl; /* Unicast TTL */ | ||
125 | __u16 cmsg_flags; | ||
126 | struct ip_options *opt; | ||
127 | __u16 sport; /* Source port */ | ||
128 | __u16 id; /* ID counter for DF pkts */ | ||
129 | __u8 tos; /* TOS */ | ||
130 | __u8 mc_ttl; /* Multicasting TTL */ | ||
131 | __u8 pmtudisc; | ||
132 | unsigned recverr : 1, | ||
133 | freebind : 1, | ||
134 | hdrincl : 1, | ||
135 | mc_loop : 1; | ||
136 | int mc_index; /* Multicast device index */ | ||
137 | __u32 mc_addr; | ||
138 | struct ip_mc_socklist *mc_list; /* Group array */ | ||
139 | /* | ||
140 | * Following members are used to retain the infomation to build | ||
141 | * an ip header on each ip fragmentation while the socket is corked. | ||
142 | */ | ||
143 | struct { | ||
144 | unsigned int flags; | ||
145 | unsigned int fragsize; | ||
146 | struct ip_options *opt; | ||
147 | struct rtable *rt; | ||
148 | int length; /* Total length of all frames */ | ||
149 | u32 addr; | ||
150 | struct flowi fl; | ||
151 | } cork; | ||
152 | }; | ||
153 | |||
154 | #define IPCORK_OPT 1 /* ip-options has been held in ipcork.opt */ | ||
155 | #define IPCORK_ALLFRAG 2 /* always fragment (for ipv6 for now) */ | ||
156 | |||
157 | static inline struct inet_sock *inet_sk(const struct sock *sk) | ||
158 | { | ||
159 | return (struct inet_sock *)sk; | ||
160 | } | ||
161 | |||
162 | static inline void __inet_sk_copy_descendant(struct sock *sk_to, | ||
163 | const struct sock *sk_from, | ||
164 | const int ancestor_size) | ||
165 | { | ||
166 | memcpy(inet_sk(sk_to) + 1, inet_sk(sk_from) + 1, | ||
167 | sk_from->sk_prot->obj_size - ancestor_size); | ||
168 | } | ||
169 | #if !(defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)) | ||
170 | static inline void inet_sk_copy_descendant(struct sock *sk_to, | ||
171 | const struct sock *sk_from) | ||
172 | { | ||
173 | __inet_sk_copy_descendant(sk_to, sk_from, sizeof(struct inet_sock)); | ||
174 | } | ||
175 | #endif | ||
176 | #endif | ||
177 | |||
178 | struct iphdr { | ||
179 | #if defined(__LITTLE_ENDIAN_BITFIELD) | ||
180 | __u8 ihl:4, | ||
181 | version:4; | ||
182 | #elif defined (__BIG_ENDIAN_BITFIELD) | ||
183 | __u8 version:4, | ||
184 | ihl:4; | ||
185 | #else | ||
186 | #error "Please fix <asm/byteorder.h>" | ||
187 | #endif | ||
188 | __u8 tos; | ||
189 | __u16 tot_len; | ||
190 | __u16 id; | ||
191 | __u16 frag_off; | ||
192 | __u8 ttl; | ||
193 | __u8 protocol; | ||
194 | __u16 check; | ||
195 | __u32 saddr; | ||
196 | __u32 daddr; | ||
197 | /*The options start here. */ | ||
198 | }; | ||
199 | |||
200 | struct ip_auth_hdr { | ||
201 | __u8 nexthdr; | ||
202 | __u8 hdrlen; /* This one is measured in 32 bit units! */ | ||
203 | __u16 reserved; | ||
204 | __u32 spi; | ||
205 | __u32 seq_no; /* Sequence number */ | ||
206 | __u8 auth_data[0]; /* Variable len but >=4. Mind the 64 bit alignment! */ | ||
207 | }; | ||
208 | |||
209 | struct ip_esp_hdr { | ||
210 | __u32 spi; | ||
211 | __u32 seq_no; /* Sequence number */ | ||
212 | __u8 enc_data[0]; /* Variable len but >=8. Mind the 64 bit alignment! */ | ||
213 | }; | ||
214 | |||
215 | struct ip_comp_hdr { | ||
216 | __u8 nexthdr; | ||
217 | __u8 flags; | ||
218 | __u16 cpi; | ||
219 | }; | ||
220 | |||
221 | #endif /* _LINUX_IP_H */ | ||