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 __u16 icmp6_cksum;
11
12
13 union {
14 __u32 un_data32[1];
15 __u16 un_data16[2];
16 __u8 un_data8[4];
17
18 struct icmpv6_echo {
19 __u16 identifier;
20 __u16 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:6,
44 other:1,
45 managed:1;
46
47#elif defined(__BIG_ENDIAN_BITFIELD)
48 __u8 managed:1,
49 other:1,
50 reserved:6;
51#else
52#error "Please fix <asm/byteorder.h>"
53#endif
54 __u16 rt_lifetime;
55 } u_nd_ra;
56
57 } icmp6_dataun;
58
59#define icmp6_identifier icmp6_dataun.u_echo.identifier
60#define icmp6_sequence icmp6_dataun.u_echo.sequence
61#define icmp6_pointer icmp6_dataun.un_data32[0]
62#define icmp6_mtu icmp6_dataun.un_data32[0]
63#define icmp6_unused icmp6_dataun.un_data32[0]
64#define icmp6_maxdelay icmp6_dataun.un_data16[0]
65#define icmp6_router icmp6_dataun.u_nd_advt.router
66#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited
67#define icmp6_override icmp6_dataun.u_nd_advt.override
68#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved
69#define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit
70#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed
71#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
72#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
73};
74
75
76#define ICMPV6_DEST_UNREACH 1
77#define ICMPV6_PKT_TOOBIG 2
78#define ICMPV6_TIME_EXCEED 3
79#define ICMPV6_PARAMPROB 4
80
81#define ICMPV6_INFOMSG_MASK 0x80
82
83#define ICMPV6_ECHO_REQUEST 128
84#define ICMPV6_ECHO_REPLY 129
85#define ICMPV6_MGM_QUERY 130
86#define ICMPV6_MGM_REPORT 131
87#define ICMPV6_MGM_REDUCTION 132
88
89#define ICMPV6_NI_QUERY 139
90#define ICMPV6_NI_REPLY 140
91
92#define ICMPV6_MLD2_REPORT 143
93
94#define ICMPV6_DHAAD_REQUEST 144
95#define ICMPV6_DHAAD_REPLY 145
96#define ICMPV6_MOBILE_PREFIX_SOL 146
97#define ICMPV6_MOBILE_PREFIX_ADV 147
98
99/*
100 * Codes for Destination Unreachable
101 */
102#define ICMPV6_NOROUTE 0
103#define ICMPV6_ADM_PROHIBITED 1
104#define ICMPV6_NOT_NEIGHBOUR 2
105#define ICMPV6_ADDR_UNREACH 3
106#define ICMPV6_PORT_UNREACH 4
107
108/*
109 * Codes for Time Exceeded
110 */
111#define ICMPV6_EXC_HOPLIMIT 0
112#define ICMPV6_EXC_FRAGTIME 1
113
114/*
115 * Codes for Parameter Problem
116 */
117#define ICMPV6_HDR_FIELD 0
118#define ICMPV6_UNK_NEXTHDR 1
119#define ICMPV6_UNK_OPTION 2
120
121/*
122 * constants for (set|get)sockopt
123 */
124
125#define ICMPV6_FILTER 1
126
127/*
128 * ICMPV6 filter
129 */
130
131#define ICMPV6_FILTER_BLOCK 1
132#define ICMPV6_FILTER_PASS 2
133#define ICMPV6_FILTER_BLOCKOTHERS 3
134#define ICMPV6_FILTER_PASSONLY 4
135
136struct icmp6_filter {
137 __u32 data[8];
138};
139
140/*
141 * Definitions for MLDv2
142 */
143#define MLD2_MODE_IS_INCLUDE 1
144#define MLD2_MODE_IS_EXCLUDE 2
145#define MLD2_CHANGE_TO_INCLUDE 3
146#define MLD2_CHANGE_TO_EXCLUDE 4
147#define MLD2_ALLOW_NEW_SOURCES 5
148#define MLD2_BLOCK_OLD_SOURCES 6
149
150#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
151
152#ifdef __KERNEL__
153
154#include <linux/netdevice.h>
155#include <linux/skbuff.h>
156
157
158extern void icmpv6_send(struct sk_buff *skb,
159 int type, int code,
160 __u32 info,
161 struct net_device *dev);
162
163extern int icmpv6_init(struct net_proto_family *ops);
164extern int icmpv6_err_convert(int type, int code,
165 int *err);
166extern void icmpv6_cleanup(void);
167extern void icmpv6_param_prob(struct sk_buff *skb,
168 int code, int pos);
169#endif
170
171#endif