/*
|
* q_fifo.c FIFO.
|
*
|
* 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>
|
*
|
*/
|
|
#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: ... <[p|b]fifo | pfifo_head_drop> [ limit NUMBER ]\n");
|
}
|
|
static int fifo_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
|
{
|
int ok = 0;
|
struct tc_fifo_qopt opt = {};
|
|
while (argc > 0) {
|
if (strcmp(*argv, "limit") == 0) {
|
NEXT_ARG();
|
if (get_size(&opt.limit, *argv)) {
|
fprintf(stderr, "%s: Illegal value for \"limit\": \"%s\"\n", qu->id, *argv);
|
return -1;
|
}
|
ok++;
|
} else if (strcmp(*argv, "help") == 0) {
|
explain();
|
return -1;
|
} else {
|
fprintf(stderr, "%s: unknown parameter \"%s\"\n", qu->id, *argv);
|
explain();
|
return -1;
|
}
|
argc--; argv++;
|
}
|
|
if (ok)
|
addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
|
return 0;
|
}
|
|
static int fifo_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
|
{
|
struct tc_fifo_qopt *qopt;
|
|
if (opt == NULL)
|
return 0;
|
|
if (RTA_PAYLOAD(opt) < sizeof(*qopt))
|
return -1;
|
qopt = RTA_DATA(opt);
|
if (strcmp(qu->id, "bfifo") == 0) {
|
SPRINT_BUF(b1);
|
fprintf(f, "limit %s", sprint_size(qopt->limit, b1));
|
} else
|
fprintf(f, "limit %up", qopt->limit);
|
return 0;
|
}
|
|
|
struct qdisc_util bfifo_qdisc_util = {
|
.id = "bfifo",
|
.parse_qopt = fifo_parse_opt,
|
.print_qopt = fifo_print_opt,
|
};
|
|
struct qdisc_util pfifo_qdisc_util = {
|
.id = "pfifo",
|
.parse_qopt = fifo_parse_opt,
|
.print_qopt = fifo_print_opt,
|
};
|
|
struct qdisc_util pfifo_head_drop_qdisc_util = {
|
.id = "pfifo_head_drop",
|
.parse_qopt = fifo_parse_opt,
|
.print_qopt = fifo_print_opt,
|
};
|
|
extern int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt);
|
struct qdisc_util pfifo_fast_qdisc_util = {
|
.id = "pfifo_fast",
|
.print_qopt = prio_print_opt,
|
};
|
