projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| e9f1847e DS |
2 | /* |
| 3 | * EIGRP Metric Math Functions. | |
| 4 | * Copyright (C) 2013-2016 | |
| 5 | * Authors: | |
| 6 | * Donnie Savage | |
| e9f1847e DS |
7 | */ |
| 8 | ||
| 9 | #ifndef _ZEBRA_EIGRP_METRIC_H_ | |
| 10 | #define _ZEBRA_EIGRP_METRIC_H_ | |
| 11 | ||
| 12 | /* Constants */ | |
| 13 | #define EIGRP_BANDWIDTH_MIN 0x1ull /* 1 */ | |
| 14 | #define EIGRP_BANDWIDTH_SCALER 10000000ull /* Inversion value */ | |
| 15 | #define EIGRP_BANDWIDTH_MAX 0xffffffffffffffffull /* 1.84467441x10^19 */ | |
| 16 | ||
| 17 | #define EIGRP_DELAY_MIN 0x1ull /* 1 */ | |
| 18 | #define EIGRP_DELAY_PICO 1000000ull | |
| 19 | #define EIGRP_DELAY_MAX 0xffffffffffffffffull /* 1.84467441x10^19 */ | |
| 20 | ||
| 21 | #define EIGRP_MAX_LOAD 256 | |
| 22 | #define EIGRP_MAX_HOPS 100 | |
| 23 | ||
| 24 | #define EIGRP_INACCESSIBLE 0xFFFFFFFFFFFFFFFFull | |
| 25 | ||
| 26 | #define EIGRP_METRIC_MAX 0xffffffffffffffffull /* 1.84467441x10^19 */ | |
| 27 | #define EIGRP_METRIC_MAX_CLASSIC 0xffffffff | |
| 28 | #define EIGRP_METRIC_SCALER 65536 /* CLASSIC to WIDE conversion */ | |
| 29 | ||
| 30 | #define EIGRP_CLASSIC_MAX 0xffffffff /* 4294967295 */ | |
| 31 | #define EIGRP_CLASSIC_SCALER 256 /* IGRP to EIGRP conversion */ | |
| 32 | ||
| 33 | ||
| 34 | /* Prototypes */ | |
| 35 | extern eigrp_scaled_t eigrp_bandwidth_to_scaled(eigrp_bandwidth_t bw); | |
| 36 | extern eigrp_bandwidth_t eigrp_scaled_to_bandwidth(eigrp_scaled_t scale); | |
| 37 | extern eigrp_scaled_t eigrp_delay_to_scaled(eigrp_delay_t delay); | |
| 38 | extern eigrp_delay_t eigrp_scaled_to_delay(eigrp_scaled_t scale); | |
| 39 | ||
| 40 | extern eigrp_metric_t eigrp_calculate_metrics(struct eigrp *eigrp, | |
| 41 | struct eigrp_metrics metric); | |
| 42 | extern eigrp_metric_t | |
| 43 | eigrp_calculate_total_metrics(struct eigrp *eigrp, | |
| 44 | struct eigrp_route_descriptor *rd); | |
| 45 | extern bool eigrp_metrics_is_same(struct eigrp_metrics m1, | |
| 46 | struct eigrp_metrics m2); | |
| 47 | ||
| 48 | #endif /* _ZEBRA_EIGRP_METRIC_H_ */ |