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;
10 __u16 icmp6_cksum;
11
12
13 union {
14 __u32 un_data32[1];
15 __u16 un_data16[2];
16 __u8 un_data8[4];
17
18 struct icmpv6_echo {
19 __u16 identifier;
20 __u16 sequence;
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)
43 __u8 reserved:6,
44 other:1,
45 managed:1;
46
47 #elif defined(__BIG_ENDIAN_BITFIELD)
48 __u8 managed:1,
49 other:1,
50 reserved:6;
51 #else
52 #error "Please fix <asm/byteorder.h>"
53 #endif
54 __u16 rt_lifetime;
55 } u_nd_ra;
56
57 } icmp6_dataun;
58
59 #define icmp6_identifier icmp6_dataun.u_echo.identifier
60 #define icmp6_sequence icmp6_dataun.u_echo.sequence
61 #define icmp6_pointer icmp6_dataun.un_data32[0]
62 #define icmp6_mtu icmp6_dataun.un_data32[0]
63 #define icmp6_unused icmp6_dataun.un_data32[0]
64 #define icmp6_maxdelay icmp6_dataun.un_data16[0]
65 #define icmp6_router icmp6_dataun.u_nd_advt.router
66 #define icmp6_solicited icmp6_dataun.u_nd_advt.solicited
67 #define icmp6_override icmp6_dataun.u_nd_advt.override
68 #define icmp6_ndiscreserved icmp6_dataun.u_nd_advt.reserved
69 #define icmp6_hop_limit icmp6_dataun.u_nd_ra.hop_limit
70 #define icmp6_addrconf_managed icmp6_dataun.u_nd_ra.managed
71 #define icmp6_addrconf_other icmp6_dataun.u_nd_ra.other
72 #define icmp6_rt_lifetime icmp6_dataun.u_nd_ra.rt_lifetime
73 };
74
75
76 #define ICMPV6_DEST_UNREACH 1
77 #define ICMPV6_PKT_TOOBIG 2
78 #define ICMPV6_TIME_EXCEED 3
79 #define ICMPV6_PARAMPROB 4
80
81 #define ICMPV6_INFOMSG_MASK 0x80
82
83 #define ICMPV6_ECHO_REQUEST 128
84 #define ICMPV6_ECHO_REPLY 129
85 #define ICMPV6_MGM_QUERY 130
86 #define ICMPV6_MGM_REPORT 131
87 #define ICMPV6_MGM_REDUCTION 132
88
89 /*
90 * Codes for Destination Unreachable
91 */
92 #define ICMPV6_NOROUTE 0
93 #define ICMPV6_ADM_PROHIBITED 1
94 #define ICMPV6_NOT_NEIGHBOUR 2
95 #define ICMPV6_ADDR_UNREACH 3
96 #define ICMPV6_PORT_UNREACH 4
97
98 /*
99 * Codes for Time Exceeded
100 */
101 #define ICMPV6_EXC_HOPLIMIT 0
102 #define ICMPV6_EXC_FRAGTIME 1
103
104 /*
105 * Codes for Parameter Problem
106 */
107 #define ICMPV6_HDR_FIELD 0
108 #define ICMPV6_UNK_NEXTHDR 1
109 #define ICMPV6_UNK_OPTION 2
110
111 /*
112 * constants for (set|get)sockopt
113 */
114
115 #define ICMPV6_FILTER 1
116
117 /*
118 * ICMPV6 filter
119 */
120
121 #define ICMPV6_FILTER_BLOCK 1
122 #define ICMPV6_FILTER_PASS 2
123 #define ICMPV6_FILTER_BLOCKOTHERS 3
124 #define ICMPV6_FILTER_PASSONLY 4
125
126 struct icmp6_filter {
127 __u32 data[8];
128 };
129
130 #ifdef __KERNEL__
131
132 #include <linux/netdevice.h>
133 #include <linux/skbuff.h>
134
135
136 extern void icmpv6_send(struct sk_buff *skb,
137 int type, int code,
138 __u32 info,
139 struct net_device *dev);
140
141 extern int icmpv6_init(struct net_proto_family *ops);
142 extern int icmpv6_err_convert(int type, int code,
143 int *err);
144 extern void icmpv6_cleanup(void);
145 extern void icmpv6_param_prob(struct sk_buff *skb,
146 int code, void *pos);
147 #endif
148
149 #endif
150
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