KernelLand/Modules/IPStack/icmpv6.h

   1 /*
   2  * Acess2 IP Stack
   3  * - By John Hodge (thePowersGang)
   4  *
   5  * icmpv6.c
   6  * - Internet Control Message Protocol v6
   7  */
   8 #ifndef _ICMPV6_H_
   9 #define _ICMPV6_H_
  10
  11 #define IPV6PROT_ICMPV6 58
  12
  13 typedef struct {
  14         Uint8   Type;
  15         Uint8   Code;
  16         Uint16  Checksum;
  17 } PACKED tICMPv6_Header;
  18
  19 typedef struct {
  20         Uint32  Reserved;
  21 } PACKED tICMPv6_RS;
  22
  23 typedef struct {
  24         Uint8   CurHopLimit;
  25         Uint8   Flags;  // M:O:6
  26         Uint16  RouterLifetime; // Seconds, life time as a default router (wtf does that mean?)
  27         Uint32  ReachableTime;
  28         Uint32  RetransTimer;   // Miliseconds, time between transmissions of RAs from this router
  29         Uint8   Options[0];
  30 } PACKED tICMPv6_RA;
  31
  32 typedef struct {
  33         Uint32  Reserved;
  34         tIPv6   TargetAddress;
  35         Uint8   Options[0];
  36 } PACKED tICMPv6_NS;
  37
  38 typedef struct {
  39         Uint32  Flags;
  40         tIPv6   TargetAddress;
  41         Uint8   Options[0];
  42 } PACKED tICMPv6_NA;
  43
  44 typedef struct {
  45         Uint32  Reserved;
  46         tIPv6   TargetAddress;
  47         tIPv6   DestinationAddress;
  48         Uint8   Options[0];
  49 } PACKED tICMPv6_Redirect;
  50
  51 typedef struct {
  52         Uint8   Type;   // 1,2
  53         Uint8   Length; // Length of field in units of 8 bytes (incl header), typically 1
  54         Uint8   Address[0];
  55 } PACKED tICMPv6_Opt_LinkAddr;
  56
  57 typedef struct {
  58         Uint8   Type;   // 3
  59         Uint8   Length; // Length of field in units of 8 bytes (incl header), typically
  60         Uint8   PrefixLength;
  61         Uint8   Flags;  // L:A:6 -
  62         Uint32  ValidLifetime;
  63         Uint32  PreferredLifetime;
  64         Uint32  _reserved2;
  65         tIPv6   Prefix[0];
  66 } PACKED tICMPv6_Opt_Prefix;
  67
  68 typedef struct {
  69         Uint8   Type;   // 4
  70         Uint8   Length;
  71         Uint16  _rsvd1;
  72         Uint32  _rsvd2;
  73         Uint8   Data[0];        // All or part of the redirected message (not exceeding MTU)
  74 } PACKED tICMPv6_Opt_Redirect;
  75
  76 typedef struct {
  77         Uint8   Type;   // 4
  78         Uint8   Length;
  79         Uint16  _resvd1;
  80         Uint32  MTU;
  81 } PACKED tICMPv6_Opt_MTU;
  82
  83 enum {
  84         ICMPV6_ERR_UNREACHABLE,
  85         ICMPV6_ERR_PACKET_TOO_BIG,
  86         ICMPV6_ERR_TIME_EXCEEDED,
  87         ICMPV6_ERR_PARAMETER_PROBLEM,
  88 };
  89 enum {
  90         ICMPV6_INFO_ECHO_REQUEST = 128,
  91         ICMPV6_INFO_ECHO_REPLY,
  92
  93         ICMPV6_INFO_ROUTER_SOLICITATION = 133,
  94         ICMPV6_INFO_ROUTER_ADVERTISEMENT,
  95         ICMPV6_INFO_NEIGHBOUR_SOLICITATION,
  96         ICMPV6_INFO_NEIGHBOUR_ADVERTISMENT,
  97         ICMPV6_INFO_REDIRECT,
  98 };
  99
 100 enum {
 101         ICMPV6_OPTION_SRCLINK = 1,
 102         ICMPV6_OPTION_TGTLINK,
 103         ICMPV6_OPTION_PREFIX,
 104         ICMPV6_OPTION_REDIRECTED_HDR,
 105         ICMPV6_OPTION_MTU,
 106 };
 107
 108 #endif
 109