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1da177e4 LT |
1 | #ifndef _LINUX_ICMPV6_H |
2 | #define _LINUX_ICMPV6_H | |
3 | ||
4 | #include <asm/byteorder.h> | |
5 | ||
6 | struct icmp6hdr { | |
7 | ||
8 | __u8 icmp6_type; | |
9 | __u8 icmp6_code; | |
9981a0e3 | 10 | __sum16 icmp6_cksum; |
1da177e4 LT |
11 | |
12 | ||
13 | union { | |
a27ee7a4 AV |
14 | __be32 un_data32[1]; |
15 | __be16 un_data16[2]; | |
1da177e4 LT |
16 | __u8 un_data8[4]; |
17 | ||
18 | struct icmpv6_echo { | |
a27ee7a4 AV |
19 | __be16 identifier; |
20 | __be16 sequence; | |
1da177e4 LT |
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) | |
22441cfa | 43 | __u8 reserved:3, |
ebacaaa0 | 44 | router_pref:2, |
22441cfa | 45 | home_agent:1, |
1da177e4 LT |
46 | other:1, |
47 | managed:1; | |
48 | ||
49 | #elif defined(__BIG_ENDIAN_BITFIELD) | |
50 | __u8 managed:1, | |
51 | other:1, | |
22441cfa | 52 | home_agent:1, |
ebacaaa0 | 53 | router_pref:2, |
22441cfa | 54 | reserved:3; |
1da177e4 LT |
55 | #else |
56 | #error "Please fix <asm/byteorder.h>" | |
57 | #endif | |
a27ee7a4 | 58 | __be16 rt_lifetime; |
1da177e4 LT |
59 | } u_nd_ra; |
60 | ||
61 | } icmp6_dataun; | |
62 | ||
63 | #define icmp6_identifier icmp6_dataun.u_echo.identifier | |
64 | #define icmp6_sequence icmp6_dataun.u_echo.sequence | |
65 | #define icmp6_pointer icmp6_dataun.un_data32[0] | |
66 | #define icmp6_mtu icmp6_dataun.un_data32[0] | |
67 | #define icmp6_unused icmp6_dataun.un_data32[0] | |
68 | #define icmp6_maxdelay icmp6_dataun.un_data16[0] | |
69 | #define icmp6_router icmp6_dataun.u_nd_advt.router | |
70 | #define icmp6_solicited icmp6_dataun.u_nd_advt.solicited | |
71 | #define icmp6_override icmp6_dataun.u_nd_advt.override | |
72 | #define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved | |
73 | #define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit | |
74 | #define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed | |
75 | #define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other | |
76 | #define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime | |
ebacaaa0 | 77 | #define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref |
1da177e4 LT |
78 | }; |
79 | ||
cc70ab26 ACM |
80 | #ifdef __KERNEL__ |
81 | #include <linux/skbuff.h> | |
82 | ||
83 | static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb) | |
84 | { | |
9c70220b | 85 | return (struct icmp6hdr *)skb_transport_header(skb); |
cc70ab26 ACM |
86 | } |
87 | #endif | |
88 | ||
ebacaaa0 YH |
89 | #define ICMPV6_ROUTER_PREF_LOW 0x3 |
90 | #define ICMPV6_ROUTER_PREF_MEDIUM 0x0 | |
91 | #define ICMPV6_ROUTER_PREF_HIGH 0x1 | |
92 | #define ICMPV6_ROUTER_PREF_INVALID 0x2 | |
1da177e4 LT |
93 | |
94 | #define ICMPV6_DEST_UNREACH 1 | |
95 | #define ICMPV6_PKT_TOOBIG 2 | |
96 | #define ICMPV6_TIME_EXCEED 3 | |
97 | #define ICMPV6_PARAMPROB 4 | |
98 | ||
99 | #define ICMPV6_INFOMSG_MASK 0x80 | |
100 | ||
101 | #define ICMPV6_ECHO_REQUEST 128 | |
102 | #define ICMPV6_ECHO_REPLY 129 | |
103 | #define ICMPV6_MGM_QUERY 130 | |
104 | #define ICMPV6_MGM_REPORT 131 | |
105 | #define ICMPV6_MGM_REDUCTION 132 | |
106 | ||
107 | #define ICMPV6_NI_QUERY 139 | |
108 | #define ICMPV6_NI_REPLY 140 | |
109 | ||
110 | #define ICMPV6_MLD2_REPORT 143 | |
111 | ||
112 | #define ICMPV6_DHAAD_REQUEST 144 | |
113 | #define ICMPV6_DHAAD_REPLY 145 | |
114 | #define ICMPV6_MOBILE_PREFIX_SOL 146 | |
115 | #define ICMPV6_MOBILE_PREFIX_ADV 147 | |
116 | ||
117 | /* | |
118 | * Codes for Destination Unreachable | |
119 | */ | |
120 | #define ICMPV6_NOROUTE 0 | |
121 | #define ICMPV6_ADM_PROHIBITED 1 | |
122 | #define ICMPV6_NOT_NEIGHBOUR 2 | |
123 | #define ICMPV6_ADDR_UNREACH 3 | |
124 | #define ICMPV6_PORT_UNREACH 4 | |
125 | ||
126 | /* | |
127 | * Codes for Time Exceeded | |
128 | */ | |
129 | #define ICMPV6_EXC_HOPLIMIT 0 | |
130 | #define ICMPV6_EXC_FRAGTIME 1 | |
131 | ||
132 | /* | |
133 | * Codes for Parameter Problem | |
134 | */ | |
135 | #define ICMPV6_HDR_FIELD 0 | |
136 | #define ICMPV6_UNK_NEXTHDR 1 | |
137 | #define ICMPV6_UNK_OPTION 2 | |
138 | ||
139 | /* | |
140 | * constants for (set|get)sockopt | |
141 | */ | |
142 | ||
143 | #define ICMPV6_FILTER 1 | |
144 | ||
145 | /* | |
146 | * ICMPV6 filter | |
147 | */ | |
148 | ||
149 | #define ICMPV6_FILTER_BLOCK 1 | |
150 | #define ICMPV6_FILTER_PASS 2 | |
151 | #define ICMPV6_FILTER_BLOCKOTHERS 3 | |
152 | #define ICMPV6_FILTER_PASSONLY 4 | |
153 | ||
154 | struct icmp6_filter { | |
155 | __u32 data[8]; | |
156 | }; | |
157 | ||
158 | /* | |
159 | * Definitions for MLDv2 | |
160 | */ | |
161 | #define MLD2_MODE_IS_INCLUDE 1 | |
162 | #define MLD2_MODE_IS_EXCLUDE 2 | |
163 | #define MLD2_CHANGE_TO_INCLUDE 3 | |
164 | #define MLD2_CHANGE_TO_EXCLUDE 4 | |
165 | #define MLD2_ALLOW_NEW_SOURCES 5 | |
166 | #define MLD2_BLOCK_OLD_SOURCES 6 | |
167 | ||
168 | #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } | |
169 | ||
170 | #ifdef __KERNEL__ | |
171 | ||
172 | #include <linux/netdevice.h> | |
173 | #include <linux/skbuff.h> | |
174 | ||
175 | ||
176 | extern void icmpv6_send(struct sk_buff *skb, | |
177 | int type, int code, | |
178 | __u32 info, | |
179 | struct net_device *dev); | |
180 | ||
9b0f976f | 181 | extern int icmpv6_init(void); |
1da177e4 LT |
182 | extern int icmpv6_err_convert(int type, int code, |
183 | int *err); | |
184 | extern void icmpv6_cleanup(void); | |
185 | extern void icmpv6_param_prob(struct sk_buff *skb, | |
186 | int code, int pos); | |
95e41e93 YH |
187 | |
188 | struct flowi; | |
f59d4389 | 189 | struct in6_addr; |
95e41e93 YH |
190 | extern void icmpv6_flow_init(struct sock *sk, |
191 | struct flowi *fl, | |
192 | u8 type, | |
193 | const struct in6_addr *saddr, | |
194 | const struct in6_addr *daddr, | |
195 | int oif); | |
1da177e4 LT |
196 | #endif |
197 | ||
198 | #endif |