From 2c7cac91ed6e7db0f6937923d2b57f97dbdbc337 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:53:30 +0200 Subject: Adding upstream version 8.4.4. Signed-off-by: Daniel Baumann --- eigrpd/eigrp_metric.h | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 eigrpd/eigrp_metric.h (limited to 'eigrpd/eigrp_metric.h') diff --git a/eigrpd/eigrp_metric.h b/eigrpd/eigrp_metric.h new file mode 100644 index 0000000..8e9cd66 --- /dev/null +++ b/eigrpd/eigrp_metric.h @@ -0,0 +1,63 @@ +/* + * EIGRP Metric Math Functions. + * Copyright (C) 2013-2016 + * Authors: + * Donnie Savage + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; see the file COPYING; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _ZEBRA_EIGRP_METRIC_H_ +#define _ZEBRA_EIGRP_METRIC_H_ + +/* Constants */ +#define EIGRP_BANDWIDTH_MIN 0x1ull /* 1 */ +#define EIGRP_BANDWIDTH_SCALER 10000000ull /* Inversion value */ +#define EIGRP_BANDWIDTH_MAX 0xffffffffffffffffull /* 1.84467441x10^19 */ + +#define EIGRP_DELAY_MIN 0x1ull /* 1 */ +#define EIGRP_DELAY_PICO 1000000ull +#define EIGRP_DELAY_MAX 0xffffffffffffffffull /* 1.84467441x10^19 */ + +#define EIGRP_MAX_LOAD 256 +#define EIGRP_MAX_HOPS 100 + +#define EIGRP_INACCESSIBLE 0xFFFFFFFFFFFFFFFFull + +#define EIGRP_METRIC_MAX 0xffffffffffffffffull /* 1.84467441x10^19 */ +#define EIGRP_METRIC_MAX_CLASSIC 0xffffffff +#define EIGRP_METRIC_SCALER 65536 /* CLASSIC to WIDE conversion */ + +#define EIGRP_CLASSIC_MAX 0xffffffff /* 4294967295 */ +#define EIGRP_CLASSIC_SCALER 256 /* IGRP to EIGRP conversion */ + + +/* Prototypes */ +extern eigrp_scaled_t eigrp_bandwidth_to_scaled(eigrp_bandwidth_t bw); +extern eigrp_bandwidth_t eigrp_scaled_to_bandwidth(eigrp_scaled_t scale); +extern eigrp_scaled_t eigrp_delay_to_scaled(eigrp_delay_t delay); +extern eigrp_delay_t eigrp_scaled_to_delay(eigrp_scaled_t scale); + +extern eigrp_metric_t eigrp_calculate_metrics(struct eigrp *eigrp, + struct eigrp_metrics metric); +extern eigrp_metric_t +eigrp_calculate_total_metrics(struct eigrp *eigrp, + struct eigrp_route_descriptor *rd); +extern bool eigrp_metrics_is_same(struct eigrp_metrics m1, + struct eigrp_metrics m2); + +#endif /* _ZEBRA_EIGRP_METRIC_H_ */ -- cgit v1.2.3