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1 | #ifndef _LINUX_ICMPV6_H |
2 | #define _LINUX_ICMPV6_H |
3 | |
4 | #include <linux/types.h> |
5 | #include <asm/byteorder.h> |
6 | |
7 | struct 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 | |
84 | static 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 | * 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> |
174 | |
175 | extern void icmpv6_send(struct sk_buff *skb, |
176 | u8 type, u8 code, |
177 | __u32 info); |
178 | |
179 | extern int icmpv6_init(void); |
180 | extern int icmpv6_err_convert(u8 type, u8 code, |
181 | int *err); |
182 | extern void icmpv6_cleanup(void); |
183 | extern void icmpv6_param_prob(struct sk_buff *skb, |
184 | u8 code, int pos); |
185 | |
186 | struct flowi; |
187 | struct in6_addr; |
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); |
194 | #endif |
195 | |
196 | #endif |
197 |
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