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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* q_qfq.c QFQ.
*
* Authors: Stephen Hemminger <shemminger@vyatta.com>
* Fabio Checconi <fabio@gandalf.sssup.it>
*
*/
#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: ... qfq\n");
}
static void explain1(const char *arg)
{
fprintf(stderr, "Illegal \"%s\"\n", arg);
}
static void explain_class(void)
{
fprintf(stderr, "Usage: ... qfq weight NUMBER maxpkt BYTES\n");
}
static int qfq_parse_opt(const struct qdisc_util *qu, int argc, char **argv,
struct nlmsghdr *n, const char *dev)
{
if (argc > 0) {
if (matches(*argv, "help") != 0)
fprintf(stderr, "What is \"%s\"?\n", *argv);
explain();
return -1;
}
return 0;
}
static int qfq_parse_class_opt(const struct qdisc_util *qu, int argc, char **argv,
struct nlmsghdr *n, const char *dev)
{
struct rtattr *tail;
__u32 tmp;
tail = addattr_nest(n, 4096, TCA_OPTIONS);
while (argc > 0) {
if (matches(*argv, "weight") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 10)) {
explain1("weight"); return -1;
}
addattr32(n, 4096, TCA_QFQ_WEIGHT, tmp);
} else if (matches(*argv, "maxpkt") == 0) {
NEXT_ARG();
if (get_u32(&tmp, *argv, 10)) {
explain1("maxpkt"); return -1;
}
addattr32(n, 4096, TCA_QFQ_LMAX, tmp);
} else if (strcmp(*argv, "help") == 0) {
explain_class();
return -1;
} else {
fprintf(stderr, "What is \"%s\"?\n", *argv);
explain_class();
return -1;
}
argc--; argv++;
}
addattr_nest_end(n, tail);
return 0;
}
static int qfq_print_opt(const struct qdisc_util *qu, FILE *f, struct rtattr *opt)
{
struct rtattr *tb[TCA_QFQ_MAX + 1];
if (opt == NULL)
return 0;
parse_rtattr_nested(tb, TCA_QFQ_MAX, opt);
if (tb[TCA_QFQ_WEIGHT]) {
fprintf(f, "weight %u ",
rta_getattr_u32(tb[TCA_QFQ_WEIGHT]));
}
if (tb[TCA_QFQ_LMAX]) {
fprintf(f, "maxpkt %u ",
rta_getattr_u32(tb[TCA_QFQ_LMAX]));
}
return 0;
}
struct qdisc_util qfq_qdisc_util = {
.id = "qfq",
.parse_qopt = qfq_parse_opt,
.print_qopt = qfq_print_opt,
.parse_copt = qfq_parse_class_opt,
.print_copt = qfq_print_opt,
};
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