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C/C++ Source or Header  |  1999-09-17  |  3KB  |  150 lines
  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 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
  150.