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icmp.h

icmp.h 1.5 KB
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  1. /* ICMP for IP v4 and v6 */
    2. 

  2. enum
    3. 

  3. {
    4. 

  4. 	/* Packet Types, icmp v4 (rfc 792) */
    5. 

  5. 	EchoReply	= 0,
    6. 

  6. 	Unreachable	= 3,
    7. 

  7. 	SrcQuench	= 4,
    8. 

  8. 	Redirect	= 5,
    9. 

  9. 	EchoRequest	= 8,
    10. 

  10. 	TimeExceed	= 11,
    11. 

  11. 	InParmProblem	= 12,
    12. 

  12. 	Timestamp	= 13,
    13. 

  13. 	TimestampReply	= 14,
    14. 

  14. 	InfoRequest	= 15,
    15. 

  15. 	InfoReply	= 16,
    16. 

  16. 	AddrMaskRequest = 17,
    17. 

  17. 	AddrMaskReply   = 18,
    18. 

  18. 	Traceroute	= 30,
    19. 

  19. 	IPv6WhereAreYou	= 33,
    20. 

  20. 	IPv6IAmHere	= 34,
    21. 

  21. 

  22. 	/* packet types, icmp v6 (rfc 2463) */
    23. 

  23. 

  24.         /* error messages */
    25. 

  25. 	UnreachableV6	= 1,
    26. 

  26. 	PacketTooBigV6	= 2,
    27. 

  27. 	TimeExceedV6	= 3,
    28. 

  28. 	ParamProblemV6	= 4,
    29. 

  29. 

  30.         /* informational messages (rfc 2461 also) */
    31. 

  31. 	EchoRequestV6	= 128,
    32. 

  32. 	EchoReplyV6	= 129,
    33. 

  33. 	RouterSolicit	= 133,
    34. 

  34. 	RouterAdvert	= 134,
    35. 

  35. 	NbrSolicit	= 135,
    36. 

  36. 	NbrAdvert	= 136,
    37. 

  37. 	RedirectV6	= 137,
    38. 

  38. 

  39. 	Maxtype6	= 137,
    40. 

  40. 

  41. 	ICMP_IPSIZE	= 20,
    42. 

  42. 	ICMP_HDRSIZE	= 8,
    43. 

  43. };
    44. 

  44. 

  45. typedef struct Icmp Icmp;
    46. 

  46. struct Icmp
    47. 

  47. {
    48. 

  48. 	uchar	vihl;		/* Version and header length */
    49. 

  49. 	uchar	tos;		/* Type of service */
    50. 

  50. 	uchar	length[2];	/* packet length */
    51. 

  51. 	uchar	id[2];		/* Identification */
    52. 

  52. 	uchar	frag[2];	/* Fragment information */
    53. 

  53. 	uchar	ttl;		/* Time to live */
    54. 

  54. 	uchar	proto;		/* Protocol */
    55. 

  55. 	uchar	ipcksum[2];	/* Header checksum */
    56. 

  56. 	uchar	src[4];		/* Ip source */
    57. 

  57. 	uchar	dst[4];		/* Ip destination */
    58. 

  58. 

  59. 	uchar	type;
    60. 

  60. 	uchar	code;
    61. 

  61. 	uchar	cksum[2];
    62. 

  62. 	uchar	icmpid[2];
    63. 

  63. 	uchar	seq[2];
    64. 

  64. 	uchar	data[1];
    65. 

  65. };
    66. 

  66. 

  67. typedef struct Icmp6 Icmp6;
    68. 

  68. struct Icmp6
    69. 

  69. {
    70. 

  70. 	uchar	vcf[4];
    71. 

  71. 	uchar	ploadlen[2];
    72. 

  72. 	uchar	proto;
    73. 

  73. 	uchar	ttl;
    74. 

  74. 	uchar	src[16];		/* Ip source */
    75. 

  75. 	uchar	dst[16];		/* Ip destination */
    76. 

  76. 

  77. 	uchar	type;
    78. 

  78. 	uchar	code;
    79. 

  79. 	uchar	cksum[2];
    80. 

  80. 	uchar	icmpid[2];
    81. 

  81. 	uchar	seq[2];
    82. 

  82. 	uchar	data[1];
    83. 

  83. };
    84.