1#ifndef _LINUX_ICMPV6_H
2#define _LINUX_ICMPV6_H
3
4#include <linux/types.h>
5#include <asm/byteorder.h>
6
7struct icmp6hdr {
8
9 __u8 icmp6_type;
10 __u8 icmp6_code;
11 __sum16 icmp6_cksum;
12
13
14 union {
15 __be32 un_data32[1];
16 __be16 un_data16[2];
17 __u8 un_data8[4];
18
19 struct icmpv6_echo {
20 __be16 identifier;
21 __be16 sequence;
22 } u_echo;
23
24 struct icmpv6_nd_advt {
25#if defined(__LITTLE_ENDIAN_BITFIELD)
26 __u32 reserved:5,
27 override:1,
28 solicited:1,
29 router:1,
30 reserved2:24;
31#elif defined(__BIG_ENDIAN_BITFIELD)
32 __u32 router:1,
33 solicited:1,
34 override:1,
35 reserved:29;
36#else
37#error "Please fix <asm/byteorder.h>"
38#endif
39 } u_nd_advt;
40
41 struct icmpv6_nd_ra {
42 __u8 hop_limit;
43#if defined(__LITTLE_ENDIAN_BITFIELD)
44 __u8 reserved:3,
45 router_pref:2,
46 home_agent:1,
47 other:1,
48 managed:1;
49
50#elif defined(__BIG_ENDIAN_BITFIELD)
51 __u8 managed:1,
52 other:1,
53 home_agent:1,
54 router_pref:2,
55 reserved:3;
56#else
57#error "Please fix <asm/byteorder.h>"
58#endif
59 __be16 rt_lifetime;
60 } u_nd_ra;
61
62 } icmp6_dataun;
63
64#define icmp6_identifier icmp6_dataun.u_echo.identifier
65#define icmp6_sequence icmp6_dataun.u_echo.sequence
66#define icmp6_pointer icmp6_dataun.un_data32[0]
67#define icmp6_mtu icmp6_dataun.un_data32[0]
68#define icmp6_unused icmp6_dataun.un_data32[0]
69#define icmp6_maxdelay icmp6_dataun.un_data16[0]
70#define icmp6_router icmp6_dataun.u_nd_advt.router
71#define icmp6_solicited icmp6_dataun.u_nd_advt.solicited
72#define icmp6_override icmp6_dataun.u_nd_advt.override
73#define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved
74#define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit
75#define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed
76#define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
77#define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
78#define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref
79};
80
81#ifdef __KERNEL__
82#include <linux/skbuff.h>
83
84static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
85{
86 return (struct icmp6hdr *)skb_transport_header(skb);
87}
88#endif
89
90#define ICMPV6_ROUTER_PREF_LOW 0x3
91#define ICMPV6_ROUTER_PREF_MEDIUM 0x0
92#define ICMPV6_ROUTER_PREF_HIGH 0x1
93#define ICMPV6_ROUTER_PREF_INVALID 0x2
94
95#define ICMPV6_DEST_UNREACH 1
96#define ICMPV6_PKT_TOOBIG 2
97#define ICMPV6_TIME_EXCEED 3
98#define ICMPV6_PARAMPROB 4
99
100#define ICMPV6_INFOMSG_MASK 0x80
101
102#define ICMPV6_ECHO_REQUEST 128
103#define ICMPV6_ECHO_REPLY 129
104#define ICMPV6_MGM_QUERY 130
105#define ICMPV6_MGM_REPORT 131
106#define ICMPV6_MGM_REDUCTION 132
107
108#define ICMPV6_NI_QUERY 139
109#define ICMPV6_NI_REPLY 140
110
111#define ICMPV6_MLD2_REPORT 143
112
113#define ICMPV6_DHAAD_REQUEST 144
114#define ICMPV6_DHAAD_REPLY 145
115#define ICMPV6_MOBILE_PREFIX_SOL 146
116#define ICMPV6_MOBILE_PREFIX_ADV 147
117
118
119
120
121#define ICMPV6_NOROUTE 0
122#define ICMPV6_ADM_PROHIBITED 1
123#define ICMPV6_NOT_NEIGHBOUR 2
124#define ICMPV6_ADDR_UNREACH 3
125#define ICMPV6_PORT_UNREACH 4
126
127
128
129
130#define ICMPV6_EXC_HOPLIMIT 0
131#define ICMPV6_EXC_FRAGTIME 1
132
133
134
135
136#define ICMPV6_HDR_FIELD 0
137#define ICMPV6_UNK_NEXTHDR 1
138#define ICMPV6_UNK_OPTION 2
139
140
141
142
143
144#define ICMPV6_FILTER 1
145
146
147
148
149
150#define ICMPV6_FILTER_BLOCK 1
151#define ICMPV6_FILTER_PASS 2
152#define ICMPV6_FILTER_BLOCKOTHERS 3
153#define ICMPV6_FILTER_PASSONLY 4
154
155struct icmp6_filter {
156 __u32 data[8];
157};
158
159
160
161
162#define MLD2_MODE_IS_INCLUDE 1
163#define MLD2_MODE_IS_EXCLUDE 2
164#define MLD2_CHANGE_TO_INCLUDE 3
165#define MLD2_CHANGE_TO_EXCLUDE 4
166#define MLD2_ALLOW_NEW_SOURCES 5
167#define MLD2_BLOCK_OLD_SOURCES 6
168
169#define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
170
171#ifdef __KERNEL__
172
173#include <linux/netdevice.h>
174
175extern void icmpv6_send(struct sk_buff *skb,
176 u8 type, u8 code,
177 __u32 info);
178
179extern int icmpv6_init(void);
180extern int icmpv6_err_convert(u8 type, u8 code,
181 int *err);
182extern void icmpv6_cleanup(void);
183extern void icmpv6_param_prob(struct sk_buff *skb,
184 u8 code, int pos);
185
186struct flowi6;
187struct in6_addr;
188extern void icmpv6_flow_init(struct sock *sk,
189 struct flowi6 *fl6,
190 u8 type,
191 const struct in6_addr *saddr,
192 const struct in6_addr *daddr,
193 int oif);
194#endif
195
196#endif
197
