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