kernel/include/uapi/linux/icmpv6.h

   1 #ifndef _UAPI_LINUX_ICMPV6_H
   2 #define _UAPI_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
  82 #define ICMPV6_ROUTER_PREF_LOW          0x3
  83 #define ICMPV6_ROUTER_PREF_MEDIUM       0x0
  84 #define ICMPV6_ROUTER_PREF_HIGH         0x1
  85 #define ICMPV6_ROUTER_PREF_INVALID      0x2
  86
  87 #define ICMPV6_DEST_UNREACH             1
  88 #define ICMPV6_PKT_TOOBIG               2
  89 #define ICMPV6_TIME_EXCEED              3
  90 #define ICMPV6_PARAMPROB                4
  91
  92 #define ICMPV6_INFOMSG_MASK             0x80
  93
  94 #define ICMPV6_ECHO_REQUEST             128
  95 #define ICMPV6_ECHO_REPLY               129
  96 #define ICMPV6_MGM_QUERY                130
  97 #define ICMPV6_MGM_REPORT               131
  98 #define ICMPV6_MGM_REDUCTION            132
  99
 100 #define ICMPV6_NI_QUERY                 139
 101 #define ICMPV6_NI_REPLY                 140
 102
 103 #define ICMPV6_MLD2_REPORT              143
 104
 105 #define ICMPV6_DHAAD_REQUEST            144
 106 #define ICMPV6_DHAAD_REPLY              145
 107 #define ICMPV6_MOBILE_PREFIX_SOL        146
 108 #define ICMPV6_MOBILE_PREFIX_ADV        147
 109
 110 /*
 111  *      Codes for Destination Unreachable
 112  */
 113 #define ICMPV6_NOROUTE                  0
 114 #define ICMPV6_ADM_PROHIBITED           1
 115 #define ICMPV6_NOT_NEIGHBOUR            2
 116 #define ICMPV6_ADDR_UNREACH             3
 117 #define ICMPV6_PORT_UNREACH             4
 118 #define ICMPV6_POLICY_FAIL              5
 119 #define ICMPV6_REJECT_ROUTE             6
 120
 121 /*
 122  *      Codes for Time Exceeded
 123  */
 124 #define ICMPV6_EXC_HOPLIMIT             0
 125 #define ICMPV6_EXC_FRAGTIME             1
 126
 127 /*
 128  *      Codes for Parameter Problem
 129  */
 130 #define ICMPV6_HDR_FIELD                0
 131 #define ICMPV6_UNK_NEXTHDR              1
 132 #define ICMPV6_UNK_OPTION               2
 133
 134 /*
 135  *      constants for (set|get)sockopt
 136  */
 137
 138 #define ICMPV6_FILTER                   1
 139
 140 /*
 141  *      ICMPV6 filter
 142  */
 143
 144 #define ICMPV6_FILTER_BLOCK             1
 145 #define ICMPV6_FILTER_PASS              2
 146 #define ICMPV6_FILTER_BLOCKOTHERS       3
 147 #define ICMPV6_FILTER_PASSONLY          4
 148
 149 struct icmp6_filter {
 150         __u32           data[8];
 151 };
 152
 153 /*
 154  *      Definitions for MLDv2
 155  */
 156 #define MLD2_MODE_IS_INCLUDE    1
 157 #define MLD2_MODE_IS_EXCLUDE    2
 158 #define MLD2_CHANGE_TO_INCLUDE  3
 159 #define MLD2_CHANGE_TO_EXCLUDE  4
 160 #define MLD2_ALLOW_NEW_SOURCES  5
 161 #define MLD2_BLOCK_OLD_SOURCES  6
 162
 163 #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
 164
 165
 166 #endif /* _UAPI_LINUX_ICMPV6_H */