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https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
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123 lines
2.5 KiB
C
123 lines
2.5 KiB
C
/*
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* q_qfq.c QFQ.
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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: Stephen Hemminger <shemminger@vyatta.com>
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* Fabio Checconi <fabio@gandalf.sssup.it>
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*
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*/
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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: ... qfq\n");
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}
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static void explain1(const char *arg)
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{
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fprintf(stderr, "Illegal \"%s\"\n", arg);
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}
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static void explain_class(void)
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{
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fprintf(stderr, "Usage: ... qfq weight NUMBER maxpkt BYTES\n");
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}
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static int qfq_parse_opt(struct qdisc_util *qu, int argc, char **argv,
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struct nlmsghdr *n)
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{
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while (argc > 0) {
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if (matches(*argv, "help") == 0) {
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explain();
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return -1;
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} else {
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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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argc--; argv++;
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}
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return 0;
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}
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static int qfq_parse_class_opt(struct qdisc_util *qu, int argc, char **argv,
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struct nlmsghdr *n)
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{
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struct rtattr *tail;
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__u32 tmp;
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tail = NLMSG_TAIL(n);
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addattr_l(n, 4096, TCA_OPTIONS, NULL, 0);
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while (argc > 0) {
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if (matches(*argv, "weight") == 0) {
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NEXT_ARG();
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if (get_u32(&tmp, *argv, 10)) {
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explain1("weight"); return -1;
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}
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addattr32(n, 4096, TCA_QFQ_WEIGHT, tmp);
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} else if (matches(*argv, "maxpkt") == 0) {
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NEXT_ARG();
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if (get_u32(&tmp, *argv, 10)) {
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explain1("maxpkt"); return -1;
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}
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addattr32(n, 4096, TCA_QFQ_LMAX, tmp);
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} else if (strcmp(*argv, "help") == 0) {
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explain_class();
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return -1;
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} else {
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fprintf(stderr, "What is \"%s\"?\n", *argv);
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explain_class();
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return -1;
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}
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argc--; argv++;
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}
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tail->rta_len = (void *)NLMSG_TAIL(n) - (void *)tail;
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return 0;
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}
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static int qfq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
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{
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struct rtattr *tb[TCA_QFQ_MAX + 1];
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if (opt == NULL)
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return 0;
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parse_rtattr_nested(tb, TCA_QFQ_MAX, opt);
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if (tb[TCA_QFQ_WEIGHT]) {
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fprintf(f, "weight %u ",
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rta_getattr_u32(tb[TCA_QFQ_WEIGHT]));
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}
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if (tb[TCA_QFQ_LMAX]) {
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fprintf(f, "maxpkt %u ",
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rta_getattr_u32(tb[TCA_QFQ_LMAX]));
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}
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return 0;
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}
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struct qdisc_util qfq_qdisc_util = {
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.id = "qfq",
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.parse_qopt = qfq_parse_opt,
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.print_qopt = qfq_print_opt,
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.parse_copt = qfq_parse_class_opt,
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.print_copt = qfq_print_opt,
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};
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