1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ****************************************************************************
11 ****************************************************************************/
12#ifndef _LINUX_IP_H
13#define _LINUX_IP_H
14#include <linux/types.h>
15#include <asm/byteorder.h>
16
17#define IPTOS_TOS_MASK 0x1E
18#define IPTOS_TOS(tos) ((tos)&IPTOS_TOS_MASK)
19#define IPTOS_LOWDELAY 0x10
20#define IPTOS_THROUGHPUT 0x08
21#define IPTOS_RELIABILITY 0x04
22#define IPTOS_MINCOST 0x02
23
24#define IPTOS_PREC_MASK 0xE0
25#define IPTOS_PREC(tos) ((tos)&IPTOS_PREC_MASK)
26#define IPTOS_PREC_NETCONTROL 0xe0
27#define IPTOS_PREC_INTERNETCONTROL 0xc0
28#define IPTOS_PREC_CRITIC_ECP 0xa0
29#define IPTOS_PREC_FLASHOVERRIDE 0x80
30#define IPTOS_PREC_FLASH 0x60
31#define IPTOS_PREC_IMMEDIATE 0x40
32#define IPTOS_PREC_PRIORITY 0x20
33#define IPTOS_PREC_ROUTINE 0x00
34
35#define IPOPT_COPY 0x80
36#define IPOPT_CLASS_MASK 0x60
37#define IPOPT_NUMBER_MASK 0x1f
38
39#define IPOPT_COPIED(o) ((o)&IPOPT_COPY)
40#define IPOPT_CLASS(o) ((o)&IPOPT_CLASS_MASK)
41#define IPOPT_NUMBER(o) ((o)&IPOPT_NUMBER_MASK)
42
43#define IPOPT_CONTROL 0x00
44#define IPOPT_RESERVED1 0x20
45#define IPOPT_MEASUREMENT 0x40
46#define IPOPT_RESERVED2 0x60
47
48#define IPOPT_END (0 |IPOPT_CONTROL)
49#define IPOPT_NOOP (1 |IPOPT_CONTROL)
50#define IPOPT_SEC (2 |IPOPT_CONTROL|IPOPT_COPY)
51#define IPOPT_LSRR (3 |IPOPT_CONTROL|IPOPT_COPY)
52#define IPOPT_TIMESTAMP (4 |IPOPT_MEASUREMENT)
53#define IPOPT_RR (7 |IPOPT_CONTROL)
54#define IPOPT_SID (8 |IPOPT_CONTROL|IPOPT_COPY)
55#define IPOPT_SSRR (9 |IPOPT_CONTROL|IPOPT_COPY)
56#define IPOPT_RA (20|IPOPT_CONTROL|IPOPT_COPY)
57
58#define IPVERSION 4
59#define MAXTTL 255
60#define IPDEFTTL 64
61
62#define IPOPT_OPTVAL 0
63#define IPOPT_OLEN 1
64#define IPOPT_OFFSET 2
65#define IPOPT_MINOFF 4
66#define MAX_IPOPTLEN 40
67#define IPOPT_NOP IPOPT_NOOP
68#define IPOPT_EOL IPOPT_END
69#define IPOPT_TS IPOPT_TIMESTAMP
70
71#define IPOPT_TS_TSONLY 0
72#define IPOPT_TS_TSANDADDR 1
73#define IPOPT_TS_PRESPEC 3
74
75struct iphdr {
76#ifdef __LITTLE_ENDIAN_BITFIELD
77 __u8 ihl:4,
78 version:4;
79#elif defined (__BIG_ENDIAN_BITFIELD)
80 __u8 version:4,
81 ihl:4;
82#else
83#error "Please fix <asm/byteorder.h>"
84#endif
85 __u8 tos;
86 __be16 tot_len;
87 __be16 id;
88 __be16 frag_off;
89 __u8 ttl;
90 __u8 protocol;
91 __u16 check;
92 __be32 saddr;
93 __be32 daddr;
94
95};
96
97struct ip_auth_hdr {
98 __u8 nexthdr;
99 __u8 hdrlen;
100 __u16 reserved;
101 __u32 spi;
102 __u32 seq_no;
103 __u8 auth_data[0];
104};
105
106struct ip_esp_hdr {
107 __u32 spi;
108 __u32 seq_no;
109 __u8 enc_data[0];
110};
111
112struct ip_comp_hdr {
113 __u8 nexthdr;
114 __u8 flags;
115 __u16 cpi;
116};
117
118#endif
119