| | 1 | /* $Header: /tcpdump/master/tcpdump/ntp.h,v 1.8 2004/01/28 14:34:50 hannes Exp $ */ |
| | 2 | |
| | 3 | /* |
| | 4 | * Based on ntp.h from the U of MD implementation |
| | 5 | * This file is based on Version 2 of the NTP spec (RFC1119). |
| | 6 | */ |
| | 7 | |
| | 8 | /* |
| | 9 | * Definitions for the masses |
| | 10 | */ |
| | 11 | #define JAN_1970 2208988800U /* 1970 - 1900 in seconds */ |
| | 12 | |
| | 13 | /* |
| | 14 | * Structure definitions for NTP fixed point values |
| | 15 | * |
| | 16 | * 0 1 2 3 |
| | 17 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| | 18 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 19 | * | Integer Part | |
| | 20 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 21 | * | Fraction Part | |
| | 22 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 23 | * |
| | 24 | * 0 1 2 3 |
| | 25 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| | 26 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 27 | * | Integer Part | Fraction Part | |
| | 28 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 29 | */ |
| | 30 | struct l_fixedpt { |
| | 31 | u_int32_t int_part; |
| | 32 | u_int32_t fraction; |
| | 33 | }; |
| | 34 | |
| | 35 | struct s_fixedpt { |
| | 36 | u_int16_t int_part; |
| | 37 | u_int16_t fraction; |
| | 38 | }; |
| | 39 | |
| | 40 | /* rfc2030 |
| | 41 | * 1 2 3 |
| | 42 | * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 |
| | 43 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 44 | * |LI | VN |Mode | Stratum | Poll | Precision | |
| | 45 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 46 | * | Root Delay | |
| | 47 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 48 | * | Root Dispersion | |
| | 49 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 50 | * | Reference Identifier | |
| | 51 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 52 | * | | |
| | 53 | * | Reference Timestamp (64) | |
| | 54 | * | | |
| | 55 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 56 | * | | |
| | 57 | * | Originate Timestamp (64) | |
| | 58 | * | | |
| | 59 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 60 | * | | |
| | 61 | * | Receive Timestamp (64) | |
| | 62 | * | | |
| | 63 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 64 | * | | |
| | 65 | * | Transmit Timestamp (64) | |
| | 66 | * | | |
| | 67 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 68 | * | Key Identifier (optional) (32) | |
| | 69 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 70 | * | | |
| | 71 | * | | |
| | 72 | * | Message Digest (optional) (128) | |
| | 73 | * | | |
| | 74 | * | | |
| | 75 | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
| | 76 | */ |
| | 77 | |
| | 78 | struct ntpdata { |
| | 79 | u_char status; /* status of local clock and leap info */ |
| | 80 | u_char stratum; /* Stratum level */ |
| | 81 | u_char ppoll; /* poll value */ |
| | 82 | int precision:8; |
| | 83 | struct s_fixedpt root_delay; |
| | 84 | struct s_fixedpt root_dispersion; |
| | 85 | u_int32_t refid; |
| | 86 | struct l_fixedpt ref_timestamp; |
| | 87 | struct l_fixedpt org_timestamp; |
| | 88 | struct l_fixedpt rec_timestamp; |
| | 89 | struct l_fixedpt xmt_timestamp; |
| | 90 | u_int32_t key_id; |
| | 91 | u_int8_t message_digest[16]; |
| | 92 | }; |
| | 93 | /* |
| | 94 | * Leap Second Codes (high order two bits) |
| | 95 | */ |
| | 96 | #define NO_WARNING 0x00 /* no warning */ |
| | 97 | #define PLUS_SEC 0x40 /* add a second (61 seconds) */ |
| | 98 | #define MINUS_SEC 0x80 /* minus a second (59 seconds) */ |
| | 99 | #define ALARM 0xc0 /* alarm condition (clock unsynchronized) */ |
| | 100 | |
| | 101 | /* |
| | 102 | * Clock Status Bits that Encode Version |
| | 103 | */ |
| | 104 | #define NTPVERSION_1 0x08 |
| | 105 | #define VERSIONMASK 0x38 |
| | 106 | #define LEAPMASK 0xc0 |
| | 107 | #define MODEMASK 0x07 |
| | 108 | |
| | 109 | /* |
| | 110 | * Code values |
| | 111 | */ |
| | 112 | #define MODE_UNSPEC 0 /* unspecified */ |
| | 113 | #define MODE_SYM_ACT 1 /* symmetric active */ |
| | 114 | #define MODE_SYM_PAS 2 /* symmetric passive */ |
| | 115 | #define MODE_CLIENT 3 /* client */ |
| | 116 | #define MODE_SERVER 4 /* server */ |
| | 117 | #define MODE_BROADCAST 5 /* broadcast */ |
| | 118 | #define MODE_RES1 6 /* reserved */ |
| | 119 | #define MODE_RES2 7 /* reserved */ |
| | 120 | |
| | 121 | /* |
| | 122 | * Stratum Definitions |
| | 123 | */ |
| | 124 | #define UNSPECIFIED 0 |
| | 125 | #define PRIM_REF 1 /* radio clock */ |
| | 126 | #define INFO_QUERY 62 /* **** THIS implementation dependent **** */ |
| | 127 | #define INFO_REPLY 63 /* **** THIS implementation dependent **** */ |
projects / dragonfly.git / blame_incremental