Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _LINUX_ICMPV6_H
2#define _LINUX_ICMPV6_H
3
4#include <asm/byteorder.h>
5
6struct icmp6hdr {
7
8 __u8 icmp6_type;
9 __u8 icmp6_code;
10 __sum16 icmp6_cksum;
11
12
13 union {
14 __be32 un_data32[1];
15 __be16 un_data16[2];
16 __u8 un_data8[4];
17
18 struct icmpv6_echo {
19 __be16 identifier;
20 __be16 sequence;
21 } u_echo;
22
23 struct icmpv6_nd_advt {
24#if defined(__LITTLE_ENDIAN_BITFIELD)
25 __u32 reserved:5,
26 override:1,
27 solicited:1,
28 router:1,
29 reserved2:24;
30#elif defined(__BIG_ENDIAN_BITFIELD)
31 __u32 router:1,
32 solicited:1,
33 override:1,
34 reserved:29;
35#else
36#error "Please fix <asm/byteorder.h>"
37#endif
38 } u_nd_advt;
39
40 struct icmpv6_nd_ra {
41 __u8 hop_limit;
42#if defined(__LITTLE_ENDIAN_BITFIELD)
43 __u8 reserved:4,
44 router_pref:2,
45 other:1,
46 managed:1;
47
48#elif defined(__BIG_ENDIAN_BITFIELD)
49 __u8 managed:1,
50 other:1,
51 router_pref:2,
52 reserved:4;
53#else
54#error "Please fix <asm/byteorder.h>"
55#endif
56 __be16 rt_lifetime;
57 } u_nd_ra;
58
59 } icmp6_dataun;
60
61#define icmp6_identifier icmp6_dataun.u_echo.identifier
62#define icmp6_sequence icmp6_dataun.u_echo.sequence
63#define icmp6_pointer icmp6_dataun.un_data32[0]
64#define icmp6_mtu icmp6_dataun.un_data32[0]
65#define icmp6_unused icmp6_dataun.un_data32[0]
66#define icmp6_maxdelay icmp6_dataun.un_data16[0]
67#define icmp6_router icmp6_dataun.u_nd_advt.router
68#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited
69#define icmp6_override icmp6_dataun.u_nd_advt.override
70#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved
71#define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit
72#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed
73#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
74#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
75#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
76};
77
78#define ICMPV6_ROUTER_PREF_LOW 0x3
79#define ICMPV6_ROUTER_PREF_MEDIUM 0x0
80#define ICMPV6_ROUTER_PREF_HIGH 0x1
81#define ICMPV6_ROUTER_PREF_INVALID 0x2
82
83#define ICMPV6_DEST_UNREACH 1
84#define ICMPV6_PKT_TOOBIG 2
85#define ICMPV6_TIME_EXCEED 3
86#define ICMPV6_PARAMPROB 4
87
88#define ICMPV6_INFOMSG_MASK 0x80
89
90#define ICMPV6_ECHO_REQUEST 128
91#define ICMPV6_ECHO_REPLY 129
92#define ICMPV6_MGM_QUERY 130
93#define ICMPV6_MGM_REPORT 131
94#define ICMPV6_MGM_REDUCTION 132
95
96#define ICMPV6_NI_QUERY 139
97#define ICMPV6_NI_REPLY 140
98
99#define ICMPV6_MLD2_REPORT 143
100
101#define ICMPV6_DHAAD_REQUEST 144
102#define ICMPV6_DHAAD_REPLY 145
103#define ICMPV6_MOBILE_PREFIX_SOL 146
104#define ICMPV6_MOBILE_PREFIX_ADV 147
105
106/*
107 * Codes for Destination Unreachable
108 */
109#define ICMPV6_NOROUTE 0
110#define ICMPV6_ADM_PROHIBITED 1
111#define ICMPV6_NOT_NEIGHBOUR 2
112#define ICMPV6_ADDR_UNREACH 3
113#define ICMPV6_PORT_UNREACH 4
114
115/*
116 * Codes for Time Exceeded
117 */
118#define ICMPV6_EXC_HOPLIMIT 0
119#define ICMPV6_EXC_FRAGTIME 1
120
121/*
122 * Codes for Parameter Problem
123 */
124#define ICMPV6_HDR_FIELD 0
125#define ICMPV6_UNK_NEXTHDR 1
126#define ICMPV6_UNK_OPTION 2
127
128/*
129 * constants for (set|get)sockopt
130 */
131
132#define ICMPV6_FILTER 1
133
134/*
135 * ICMPV6 filter
136 */
137
138#define ICMPV6_FILTER_BLOCK 1
139#define ICMPV6_FILTER_PASS 2
140#define ICMPV6_FILTER_BLOCKOTHERS 3
141#define ICMPV6_FILTER_PASSONLY 4
142
143struct icmp6_filter {
144 __u32 data[8];
145};
146
147/*
148 * Definitions for MLDv2
149 */
150#define MLD2_MODE_IS_INCLUDE 1
151#define MLD2_MODE_IS_EXCLUDE 2
152#define MLD2_CHANGE_TO_INCLUDE 3
153#define MLD2_CHANGE_TO_EXCLUDE 4
154#define MLD2_ALLOW_NEW_SOURCES 5
155#define MLD2_BLOCK_OLD_SOURCES 6
156
157#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
158
159#ifdef __KERNEL__
160
161#include <linux/netdevice.h>
162#include <linux/skbuff.h>
163
164
165extern void icmpv6_send(struct sk_buff *skb,
166 int type, int code,
167 __u32 info,
168 struct net_device *dev);
169
170extern int icmpv6_init(struct net_proto_family *ops);
171extern int icmpv6_err_convert(int type, int code,
172 int *err);
173extern void icmpv6_cleanup(void);
174extern void icmpv6_param_prob(struct sk_buff *skb,
175 int code, int pos);
176#endif
177
178#endif