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1da177e4 LT |
1 | #ifndef _LINUX_ICMPV6_H |
2 | #define _LINUX_ICMPV6_H | |
3 | ||
1cc49ae2 | 4 | #include <linux/types.h> |
1da177e4 LT |
5 | #include <asm/byteorder.h> |
6 | ||
7 | struct icmp6hdr { | |
8 | ||
9 | __u8 icmp6_type; | |
10 | __u8 icmp6_code; | |
9981a0e3 | 11 | __sum16 icmp6_cksum; |
1da177e4 LT |
12 | |
13 | ||
14 | union { | |
a27ee7a4 AV |
15 | __be32 un_data32[1]; |
16 | __be16 un_data16[2]; | |
1da177e4 LT |
17 | __u8 un_data8[4]; |
18 | ||
19 | struct icmpv6_echo { | |
a27ee7a4 AV |
20 | __be16 identifier; |
21 | __be16 sequence; | |
1da177e4 LT |
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) | |
22441cfa | 44 | __u8 reserved:3, |
ebacaaa0 | 45 | router_pref:2, |
22441cfa | 46 | home_agent:1, |
1da177e4 LT |
47 | other:1, |
48 | managed:1; | |
49 | ||
50 | #elif defined(__BIG_ENDIAN_BITFIELD) | |
51 | __u8 managed:1, | |
52 | other:1, | |
22441cfa | 53 | home_agent:1, |
ebacaaa0 | 54 | router_pref:2, |
22441cfa | 55 | reserved:3; |
1da177e4 LT |
56 | #else |
57 | #error "Please fix <asm/byteorder.h>" | |
58 | #endif | |
a27ee7a4 | 59 | __be16 rt_lifetime; |
1da177e4 LT |
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 | |
ebacaaa0 | 78 | #define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref |
1da177e4 LT |
79 | }; |
80 | ||
cc70ab26 ACM |
81 | #ifdef __KERNEL__ |
82 | #include <linux/skbuff.h> | |
83 | ||
84 | static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb) | |
85 | { | |
9c70220b | 86 | return (struct icmp6hdr *)skb_transport_header(skb); |
cc70ab26 ACM |
87 | } |
88 | #endif | |
89 | ||
ebacaaa0 YH |
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 | |
1da177e4 LT |
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 | * Codes for Destination Unreachable | |
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 | * Codes for Time Exceeded | |
129 | */ | |
130 | #define ICMPV6_EXC_HOPLIMIT 0 | |
131 | #define ICMPV6_EXC_FRAGTIME 1 | |
132 | ||
133 | /* | |
134 | * Codes for Parameter Problem | |
135 | */ | |
136 | #define ICMPV6_HDR_FIELD 0 | |
137 | #define ICMPV6_UNK_NEXTHDR 1 | |
138 | #define ICMPV6_UNK_OPTION 2 | |
139 | ||
140 | /* | |
141 | * constants for (set|get)sockopt | |
142 | */ | |
143 | ||
144 | #define ICMPV6_FILTER 1 | |
145 | ||
146 | /* | |
147 | * ICMPV6 filter | |
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 | ||
155 | struct icmp6_filter { | |
156 | __u32 data[8]; | |
157 | }; | |
158 | ||
159 | /* | |
160 | * Definitions for MLDv2 | |
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> | |
1da177e4 LT |
174 | |
175 | extern void icmpv6_send(struct sk_buff *skb, | |
d5fdd6ba | 176 | u8 type, u8 code, |
3ffe533c | 177 | __u32 info); |
1da177e4 | 178 | |
9b0f976f | 179 | extern int icmpv6_init(void); |
d5fdd6ba | 180 | extern int icmpv6_err_convert(u8 type, u8 code, |
1da177e4 LT |
181 | int *err); |
182 | extern void icmpv6_cleanup(void); | |
183 | extern void icmpv6_param_prob(struct sk_buff *skb, | |
d5fdd6ba | 184 | u8 code, int pos); |
95e41e93 | 185 | |
4c9483b2 | 186 | struct flowi6; |
f59d4389 | 187 | struct in6_addr; |
95e41e93 | 188 | extern void icmpv6_flow_init(struct sock *sk, |
4c9483b2 | 189 | struct flowi6 *fl6, |
95e41e93 YH |
190 | u8 type, |
191 | const struct in6_addr *saddr, | |
192 | const struct in6_addr *daddr, | |
193 | int oif); | |
1da177e4 LT |
194 | #endif |
195 | ||
196 | #endif |