ssb: remove the ssb DMA API
[linux-2.6.git] / include / linux / icmpv6.h
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