Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / 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         __sum16         icmp6_cksum;
11
12
13         union {
14                 __be32                  un_data32[1];
15                 __be16                  un_data16[2];
16                 __u8                    un_data8[4];
17
18                 struct icmpv6_echo {
19                         __be16          identifier;
20                         __be16          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:3,
44                                         router_pref:2,
45                                         home_agent:1,
46                                         other:1,
47                                         managed:1;
48
49 #elif defined(__BIG_ENDIAN_BITFIELD)
50                         __u8            managed:1,
51                                         other:1,
52                                         home_agent:1,
53                                         router_pref:2,
54                                         reserved:3;
55 #else
56 #error  "Please fix <asm/byteorder.h>"
57 #endif
58                         __be16          rt_lifetime;
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
77 #define icmp6_router_pref       icmp6_dataun.u_nd_ra.router_pref
78 };
79
80 #ifdef __KERNEL__
81 #include <linux/skbuff.h>
82
83 static inline struct icmp6hdr *icmp6_hdr(const struct sk_buff *skb)
84 {
85         return (struct icmp6hdr *)skb_transport_header(skb);
86 }
87 #endif
88
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
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
181 extern int                              icmpv6_init(void);
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);
187
188 struct flowi;
189 struct in6_addr;
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);
196 #endif
197
198 #endif