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: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 /* definitions for MLDv2 */
  90
  91 #define MLD2_MODE_IS_INCLUDE    1
  92 #define MLD2_MODE_IS_EXCLUDE    2
  93 #define MLD2_CHANGE_TO_INCLUDE  3
  94 #define MLD2_CHANGE_TO_EXCLUDE  4
  95 #define MLD2_ALLOW_NEW_SOURCES  5
  96 #define MLD2_BLOCK_OLD_SOURCES  6
  97
  98 #define ICMPV6_MLD2_REPORT              143
  99 #define MLD2_ALL_MCR_INIT { { { 0xff,0x02,0,0,0,0,0,0,0,0,0,0,0,0,0,0x16 } } }
 100
 101 /*
 102  *      Codes for Destination Unreachable
 103  */
 104 #define ICMPV6_NOROUTE                  0
 105 #define ICMPV6_ADM_PROHIBITED           1
 106 #define ICMPV6_NOT_NEIGHBOUR            2
 107 #define ICMPV6_ADDR_UNREACH             3
 108 #define ICMPV6_PORT_UNREACH             4
 109
 110 /*
 111  *      Codes for Time Exceeded
 112  */
 113 #define ICMPV6_EXC_HOPLIMIT             0
 114 #define ICMPV6_EXC_FRAGTIME             1
 115
 116 /*
 117  *      Codes for Parameter Problem
 118  */
 119 #define ICMPV6_HDR_FIELD                0
 120 #define ICMPV6_UNK_NEXTHDR              1
 121 #define ICMPV6_UNK_OPTION               2
 122
 123 /*
 124  *      constants for (set|get)sockopt
 125  */
 126
 127 #define ICMPV6_FILTER                   1
 128
 129 /*
 130  *      ICMPV6 filter
 131  */
 132
 133 #define ICMPV6_FILTER_BLOCK             1
 134 #define ICMPV6_FILTER_PASS              2
 135 #define ICMPV6_FILTER_BLOCKOTHERS       3
 136 #define ICMPV6_FILTER_PASSONLY          4
 137
 138 struct icmp6_filter {
 139         __u32           data[8];
 140 };
 141
 142 #ifdef __KERNEL__
 143
 144 #include <linux/netdevice.h>
 145 #include <linux/skbuff.h>
 146
 147
 148 extern void                             icmpv6_send(struct sk_buff *skb,
 149                                                     int type, int code,
 150                                                     __u32 info,
 151                                                     struct net_device *dev);
 152
 153 extern int                              icmpv6_init(struct net_proto_family *ops);
 154 extern int                              icmpv6_err_convert(int type, int code,
 155                                                            int *err);
 156 extern void                             icmpv6_cleanup(void);
 157 extern void                             icmpv6_param_prob(struct sk_buff *skb,
 158                                                           int code, int pos);
 159 #endif
 160
 161 #endif