| JP Abgrall | 53f17a9 | 2014-02-12 14:02:41 -0800 | [diff] [blame] | 1 | /* @(#) $Header: /tcpdump/master/tcpdump/igrp.h,v 1.6 2002-12-11 07:13:52 guy Exp $ (LBL) */ |
| The Android Open Source Project | 2949f58 | 2009-03-03 19:30:46 -0800 | [diff] [blame] | 2 | /* Cisco IGRP definitions */ |
| 3 | |
| 4 | /* IGRP Header */ |
| 5 | |
| 6 | struct igrphdr { |
| 7 | u_int8_t ig_vop; /* protocol version number / opcode */ |
| 8 | #define IGRP_V(x) (((x) & 0xf0) >> 4) |
| 9 | #define IGRP_OP(x) ((x) & 0x0f) |
| 10 | u_int8_t ig_ed; /* edition number */ |
| 11 | u_int16_t ig_as; /* autonomous system number */ |
| 12 | u_int16_t ig_ni; /* number of subnet in local net */ |
| 13 | u_int16_t ig_ns; /* number of networks in AS */ |
| 14 | u_int16_t ig_nx; /* number of networks ouside AS */ |
| 15 | u_int16_t ig_sum; /* checksum of IGRP header & data */ |
| 16 | }; |
| 17 | |
| 18 | #define IGRP_UPDATE 1 |
| 19 | #define IGRP_REQUEST 2 |
| 20 | |
| 21 | /* IGRP routing entry */ |
| 22 | |
| 23 | struct igrprte { |
| 24 | u_int8_t igr_net[3]; /* 3 significant octets of IP address */ |
| 25 | u_int8_t igr_dly[3]; /* delay in tens of microseconds */ |
| 26 | u_int8_t igr_bw[3]; /* bandwidth in units of 1 kb/s */ |
| 27 | u_int8_t igr_mtu[2]; /* MTU in octets */ |
| 28 | u_int8_t igr_rel; /* percent packets successfully tx/rx */ |
| 29 | u_int8_t igr_ld; /* percent of channel occupied */ |
| 30 | u_int8_t igr_hct; /* hop count */ |
| 31 | }; |
| 32 | |
| 33 | #define IGRP_RTE_SIZE 14 /* don't believe sizeof ! */ |