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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) | |
ebacaaa0 YH |
43 | __u8 reserved:4, |
44 | router_pref:2, | |
1da177e4 LT |
45 | other:1, |
46 | managed:1; | |
47 | ||
48 | #elif defined(__BIG_ENDIAN_BITFIELD) | |
49 | __u8 managed:1, | |
50 | other:1, | |
ebacaaa0 YH |
51 | router_pref:2, |
52 | reserved:4; | |
1da177e4 LT |
53 | #else |
54 | #error "Please fix <asm/byteorder.h>" | |
55 | #endif | |
a27ee7a4 | 56 | __be16 rt_lifetime; |
1da177e4 LT |
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 | |
ebacaaa0 | 75 | #define icmp6_router_pref icmp6_dataun.u_nd_ra.router_pref |
1da177e4 LT |
76 | }; |
77 | ||
cc70ab26 ACM |
78 | #ifdef __KERNEL__ |
79 | #include <linux/skbuff.h> | |
80 | ||
81 | static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb) | |
82 | { | |
9c70220b | 83 | return (struct icmp6hdr *)skb_transport_header(skb); |
cc70ab26 ACM |
84 | } |
85 | #endif | |
86 | ||
ebacaaa0 YH |
87 | #define ICMPV6_ROUTER_PREF_LOW 0x3 |
88 | #define ICMPV6_ROUTER_PREF_MEDIUM 0x0 | |
89 | #define ICMPV6_ROUTER_PREF_HIGH 0x1 | |
90 | #define ICMPV6_ROUTER_PREF_INVALID 0x2 | |
1da177e4 LT |
91 | |
92 | #define ICMPV6_DEST_UNREACH 1 | |
93 | #define ICMPV6_PKT_TOOBIG 2 | |
94 | #define ICMPV6_TIME_EXCEED 3 | |
95 | #define ICMPV6_PARAMPROB 4 | |
96 | ||
97 | #define ICMPV6_INFOMSG_MASK 0x80 | |
98 | ||
99 | #define ICMPV6_ECHO_REQUEST 128 | |
100 | #define ICMPV6_ECHO_REPLY 129 | |
101 | #define ICMPV6_MGM_QUERY 130 | |
102 | #define ICMPV6_MGM_REPORT 131 | |
103 | #define ICMPV6_MGM_REDUCTION 132 | |
104 | ||
105 | #define ICMPV6_NI_QUERY 139 | |
106 | #define ICMPV6_NI_REPLY 140 | |
107 | ||
108 | #define ICMPV6_MLD2_REPORT 143 | |
109 | ||
110 | #define ICMPV6_DHAAD_REQUEST 144 | |
111 | #define ICMPV6_DHAAD_REPLY 145 | |
112 | #define ICMPV6_MOBILE_PREFIX_SOL 146 | |
113 | #define ICMPV6_MOBILE_PREFIX_ADV 147 | |
114 | ||
115 | /* | |
116 | * Codes for Destination Unreachable | |
117 | */ | |
118 | #define ICMPV6_NOROUTE 0 | |
119 | #define ICMPV6_ADM_PROHIBITED 1 | |
120 | #define ICMPV6_NOT_NEIGHBOUR 2 | |
121 | #define ICMPV6_ADDR_UNREACH 3 | |
122 | #define ICMPV6_PORT_UNREACH 4 | |
123 | ||
124 | /* | |
125 | * Codes for Time Exceeded | |
126 | */ | |
127 | #define ICMPV6_EXC_HOPLIMIT 0 | |
128 | #define ICMPV6_EXC_FRAGTIME 1 | |
129 | ||
130 | /* | |
131 | * Codes for Parameter Problem | |
132 | */ | |
133 | #define ICMPV6_HDR_FIELD 0 | |
134 | #define ICMPV6_UNK_NEXTHDR 1 | |
135 | #define ICMPV6_UNK_OPTION 2 | |
136 | ||
137 | /* | |
138 | * constants for (set|get)sockopt | |
139 | */ | |
140 | ||
141 | #define ICMPV6_FILTER 1 | |
142 | ||
143 | /* | |
144 | * ICMPV6 filter | |
145 | */ | |
146 | ||
147 | #define ICMPV6_FILTER_BLOCK 1 | |
148 | #define ICMPV6_FILTER_PASS 2 | |
149 | #define ICMPV6_FILTER_BLOCKOTHERS 3 | |
150 | #define ICMPV6_FILTER_PASSONLY 4 | |
151 | ||
152 | struct icmp6_filter { | |
153 | __u32 data[8]; | |
154 | }; | |
155 | ||
156 | /* | |
157 | * Definitions for MLDv2 | |
158 | */ | |
159 | #define MLD2_MODE_IS_INCLUDE 1 | |
160 | #define MLD2_MODE_IS_EXCLUDE 2 | |
161 | #define MLD2_CHANGE_TO_INCLUDE 3 | |
162 | #define MLD2_CHANGE_TO_EXCLUDE 4 | |
163 | #define MLD2_ALLOW_NEW_SOURCES 5 | |
164 | #define MLD2_BLOCK_OLD_SOURCES 6 | |
165 | ||
166 | #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } } | |
167 | ||
168 | #ifdef __KERNEL__ | |
169 | ||
170 | #include <linux/netdevice.h> | |
171 | #include <linux/skbuff.h> | |
172 | ||
173 | ||
174 | extern void icmpv6_send(struct sk_buff *skb, | |
175 | int type, int code, | |
176 | __u32 info, | |
177 | struct net_device *dev); | |
178 | ||
9b0f976f | 179 | extern int icmpv6_init(void); |
1da177e4 LT |
180 | extern int icmpv6_err_convert(int type, int code, |
181 | int *err); | |
182 | extern void icmpv6_cleanup(void); | |
183 | extern void icmpv6_param_prob(struct sk_buff *skb, | |
184 | int code, int pos); | |
95e41e93 YH |
185 | |
186 | struct flowi; | |
f59d4389 | 187 | struct in6_addr; |
95e41e93 YH |
188 | extern void icmpv6_flow_init(struct sock *sk, |
189 | struct flowi *fl, | |
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 |