Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
[linux-2.6] / include / linux / icmpv6.h
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:4,
44                                         router_pref:2,
45                                         other:1,
46                                         managed:1;
47
48 #elif defined(__BIG_ENDIAN_BITFIELD)
49                         __u8            managed:1,
50                                         other:1,
51                                         router_pref:2,
52                                         reserved:4;
53 #else
54 #error  "Please fix <asm/byteorder.h>"
55 #endif
56                         __u16           rt_lifetime;
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
75 #define icmp6_router_pref       icmp6_dataun.u_nd_ra.router_pref
76 };
77
78 #define ICMPV6_ROUTER_PREF_LOW          0x3
79 #define ICMPV6_ROUTER_PREF_MEDIUM       0x0
80 #define ICMPV6_ROUTER_PREF_HIGH         0x1
81 #define ICMPV6_ROUTER_PREF_INVALID      0x2
82
83 #define ICMPV6_DEST_UNREACH             1
84 #define ICMPV6_PKT_TOOBIG               2
85 #define ICMPV6_TIME_EXCEED              3
86 #define ICMPV6_PARAMPROB                4
87
88 #define ICMPV6_INFOMSG_MASK             0x80
89
90 #define ICMPV6_ECHO_REQUEST             128
91 #define ICMPV6_ECHO_REPLY               129
92 #define ICMPV6_MGM_QUERY                130
93 #define ICMPV6_MGM_REPORT               131
94 #define ICMPV6_MGM_REDUCTION            132
95
96 #define ICMPV6_NI_QUERY                 139
97 #define ICMPV6_NI_REPLY                 140
98
99 #define ICMPV6_MLD2_REPORT              143
100
101 #define ICMPV6_DHAAD_REQUEST            144
102 #define ICMPV6_DHAAD_REPLY              145
103 #define ICMPV6_MOBILE_PREFIX_SOL        146
104 #define ICMPV6_MOBILE_PREFIX_ADV        147
105
106 /*
107  *      Codes for Destination Unreachable
108  */
109 #define ICMPV6_NOROUTE                  0
110 #define ICMPV6_ADM_PROHIBITED           1
111 #define ICMPV6_NOT_NEIGHBOUR            2
112 #define ICMPV6_ADDR_UNREACH             3
113 #define ICMPV6_PORT_UNREACH             4
114
115 /*
116  *      Codes for Time Exceeded
117  */
118 #define ICMPV6_EXC_HOPLIMIT             0
119 #define ICMPV6_EXC_FRAGTIME             1
120
121 /*
122  *      Codes for Parameter Problem
123  */
124 #define ICMPV6_HDR_FIELD                0
125 #define ICMPV6_UNK_NEXTHDR              1
126 #define ICMPV6_UNK_OPTION               2
127
128 /*
129  *      constants for (set|get)sockopt
130  */
131
132 #define ICMPV6_FILTER                   1
133
134 /*
135  *      ICMPV6 filter
136  */
137
138 #define ICMPV6_FILTER_BLOCK             1
139 #define ICMPV6_FILTER_PASS              2
140 #define ICMPV6_FILTER_BLOCKOTHERS       3
141 #define ICMPV6_FILTER_PASSONLY          4
142
143 struct icmp6_filter {
144         __u32           data[8];
145 };
146
147 /*
148  *      Definitions for MLDv2
149  */
150 #define MLD2_MODE_IS_INCLUDE    1
151 #define MLD2_MODE_IS_EXCLUDE    2
152 #define MLD2_CHANGE_TO_INCLUDE  3
153 #define MLD2_CHANGE_TO_EXCLUDE  4
154 #define MLD2_ALLOW_NEW_SOURCES  5
155 #define MLD2_BLOCK_OLD_SOURCES  6
156
157 #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
158
159 #ifdef __KERNEL__
160
161 #include <linux/netdevice.h>
162 #include <linux/skbuff.h>
163
164
165 extern void                             icmpv6_send(struct sk_buff *skb,
166                                                     int type, int code,
167                                                     __u32 info, 
168                                                     struct net_device *dev);
169
170 extern int                              icmpv6_init(struct net_proto_family *ops);
171 extern int                              icmpv6_err_convert(int type, int code,
172                                                            int *err);
173 extern void                             icmpv6_cleanup(void);
174 extern void                             icmpv6_param_prob(struct sk_buff *skb,
175                                                           int code, int pos);
176 #endif
177
178 #endif