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/*
* q_prio.c PRIO.
*
* This program 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 of the License, or (at your option) any later version.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* Changes:
*
* Ole Husgaard <sparre@login.dknet.dk>: 990513: prio2band map was always reset.
* J Hadi Salim <hadi@cyberus.ca>: 990609: priomap fix.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <syslog.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <string.h>
#include "utils.h"
#include "tc_util.h"
static void explain(void)
{
fprintf(stderr, "Usage: ... prio bands NUMBER priomap P1 P2...\n");
}
#define usage() return(-1)
static int prio_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
{
int ok=0;
int pmap_mode = 0;
int idx = 0;
struct tc_prio_qopt opt={3,{ 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }};
while (argc > 0) {
if (strcmp(*argv, "bands") == 0) {
if (pmap_mode)
explain();
NEXT_ARG();
if (get_integer(&opt.bands, *argv, 10)) {
fprintf(stderr, "Illegal \"bands\"\n");
return -1;
}
ok++;
} else if (strcmp(*argv, "priomap") == 0) {
if (pmap_mode) {
fprintf(stderr, "Error: duplicate priomap\n");
return -1;
}
pmap_mode = 1;
} else if (strcmp(*argv, "help") == 0) {
explain();
return -1;
} else {
unsigned band;
if (!pmap_mode) {
fprintf(stderr, "What is \"%s\"?\n", *argv);
explain();
return -1;
}
if (get_unsigned(&band, *argv, 10)) {
fprintf(stderr, "Illegal \"priomap\" element\n");
return -1;
}
if (band > opt.bands) {
fprintf(stderr, "\"priomap\" element is out of bands\n");
return -1;
}
if (idx > TC_PRIO_MAX) {
fprintf(stderr, "\"priomap\" index > TC_PRIO_MAX=%u\n", TC_PRIO_MAX);
return -1;
}
opt.priomap[idx++] = band;
}
argc--; argv++;
}
/*
if (pmap_mode) {
for (; idx < TC_PRIO_MAX; idx++)
opt.priomap[idx] = opt.priomap[TC_PRIO_BESTEFFORT];
}
*/
addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
return 0;
}
static int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
{
int i;
struct tc_prio_qopt *qopt;
if (opt == NULL)
return 0;
if (RTA_PAYLOAD(opt) < sizeof(*qopt))
return -1;
qopt = RTA_DATA(opt);
fprintf(f, "bands %u priomap ", qopt->bands);
for (i=0; i<=TC_PRIO_MAX; i++)
fprintf(f, " %d", qopt->priomap[i]);
return 0;
}
static int prio_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
{
return 0;
}
struct qdisc_util prio_util = {
NULL,
"prio",
prio_parse_opt,
prio_print_opt,
prio_print_xstats,
};
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