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https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
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120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
/*
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* q_prio.c PRIO.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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*
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* Changes:
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*
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* Ole Husgaard <sparre@login.dknet.dk>: 990513: prio2band map was always reset.
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* J Hadi Salim <hadi@cyberus.ca>: 990609: priomap fix.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include "utils.h"
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#include "tc_util.h"
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static void explain(void)
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{
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fprintf(stderr, "Usage: ... prio bands NUMBER priomap P1 P2...\n");
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}
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#define usage() return(-1)
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static int prio_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
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{
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int ok=0;
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int pmap_mode = 0;
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int idx = 0;
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struct tc_prio_qopt opt={3,{ 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }};
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while (argc > 0) {
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if (strcmp(*argv, "bands") == 0) {
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if (pmap_mode)
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explain();
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NEXT_ARG();
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if (get_integer(&opt.bands, *argv, 10)) {
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fprintf(stderr, "Illegal \"bands\"\n");
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return -1;
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}
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ok++;
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} else if (strcmp(*argv, "priomap") == 0) {
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if (pmap_mode) {
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fprintf(stderr, "Error: duplicate priomap\n");
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return -1;
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}
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pmap_mode = 1;
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} else if (strcmp(*argv, "help") == 0) {
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explain();
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return -1;
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} else {
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unsigned band;
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if (!pmap_mode) {
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fprintf(stderr, "What is \"%s\"?\n", *argv);
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explain();
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return -1;
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}
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if (get_unsigned(&band, *argv, 10)) {
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fprintf(stderr, "Illegal \"priomap\" element\n");
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return -1;
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}
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if (band > opt.bands) {
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fprintf(stderr, "\"priomap\" element is out of bands\n");
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return -1;
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}
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if (idx > TC_PRIO_MAX) {
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fprintf(stderr, "\"priomap\" index > TC_PRIO_MAX=%u\n", TC_PRIO_MAX);
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return -1;
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}
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opt.priomap[idx++] = band;
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}
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argc--; argv++;
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}
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/*
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if (pmap_mode) {
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for (; idx < TC_PRIO_MAX; idx++)
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opt.priomap[idx] = opt.priomap[TC_PRIO_BESTEFFORT];
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}
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*/
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addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
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return 0;
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}
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int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
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{
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int i;
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struct tc_prio_qopt *qopt;
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if (opt == NULL)
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return 0;
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if (RTA_PAYLOAD(opt) < sizeof(*qopt))
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return -1;
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qopt = RTA_DATA(opt);
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fprintf(f, "bands %u priomap ", qopt->bands);
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for (i=0; i<=TC_PRIO_MAX; i++)
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fprintf(f, " %d", qopt->priomap[i]);
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return 0;
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}
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struct qdisc_util prio_qdisc_util = {
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.id = "prio",
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.parse_qopt = prio_parse_opt,
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.print_qopt = prio_print_opt,
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};
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