+++ /dev/null
-/*
- * tc_qdisc.c "tc qdisc".
- *
- * 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>
- * J Hadi Salim: Extension to ingress
- */
-
-#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 <math.h>
-
-#include "utils.h"
-#include "tc_util.h"
-#include "tc_common.h"
-
-static int usage(void);
-
-static int usage(void)
-{
- fprintf(stderr, "Usage: tc qdisc [ add | del | replace | change | get ] dev STRING\n");
- fprintf(stderr, " [ handle QHANDLE ] [ root | ingress | parent CLASSID ]\n");
- fprintf(stderr, " [ estimator INTERVAL TIME_CONSTANT ]\n");
- fprintf(stderr, " [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n");
- fprintf(stderr, "\n");
- fprintf(stderr, " tc qdisc show [ dev STRING ] [ingress]\n");
- fprintf(stderr, "Where:\n");
- fprintf(stderr, "QDISC_KIND := { [p|b]fifo | tbf | prio | cbq | red | etc. }\n");
- fprintf(stderr, "OPTIONS := ... try tc qdisc add <desired QDISC_KIND> help\n");
- return -1;
-}
-
-int tc_qdisc_modify(int cmd, unsigned flags, int argc, char **argv)
-{
- struct qdisc_util *q = NULL;
- struct tc_estimator est;
- char d[16];
- char k[16];
- struct {
- struct nlmsghdr n;
- struct tcmsg t;
- char buf[TCA_BUF_MAX];
- } req;
-
- memset(&req, 0, sizeof(req));
- memset(&est, 0, sizeof(est));
- memset(&d, 0, sizeof(d));
- memset(&k, 0, sizeof(k));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST|flags;
- req.n.nlmsg_type = cmd;
- req.t.tcm_family = AF_UNSPEC;
-
- while (argc > 0) {
- if (strcmp(*argv, "dev") == 0) {
- NEXT_ARG();
- if (d[0])
- duparg("dev", *argv);
- strncpy(d, *argv, sizeof(d)-1);
- } else if (strcmp(*argv, "handle") == 0) {
- __u32 handle;
- if (req.t.tcm_handle)
- duparg("handle", *argv);
- NEXT_ARG();
- if (get_qdisc_handle(&handle, *argv))
- invarg(*argv, "invalid qdisc ID");
- req.t.tcm_handle = handle;
- } else if (strcmp(*argv, "root") == 0) {
- if (req.t.tcm_parent) {
- fprintf(stderr, "Error: \"root\" is duplicate parent ID\n");
- return -1;
- }
- req.t.tcm_parent = TC_H_ROOT;
-#ifdef TC_H_INGRESS
- } else if (strcmp(*argv, "ingress") == 0) {
- if (req.t.tcm_parent) {
- fprintf(stderr, "Error: \"ingress\" is a duplicate parent ID\n");
- return -1;
- }
- req.t.tcm_parent = TC_H_INGRESS;
- strncpy(k, "ingress", sizeof(k)-1);
- q = get_qdisc_kind(k);
- req.t.tcm_handle = 0xffff0000;
-
- argc--; argv++;
- break;
-#endif
- } else if (strcmp(*argv, "parent") == 0) {
- __u32 handle;
- NEXT_ARG();
- if (req.t.tcm_parent)
- duparg("parent", *argv);
- if (get_tc_classid(&handle, *argv))
- invarg(*argv, "invalid parent ID");
- req.t.tcm_parent = handle;
- } else if (matches(*argv, "estimator") == 0) {
- if (parse_estimator(&argc, &argv, &est))
- return -1;
- } else if (matches(*argv, "help") == 0) {
- usage();
- } else {
- strncpy(k, *argv, sizeof(k)-1);
-
- q = get_qdisc_kind(k);
- argc--; argv++;
- break;
- }
- argc--; argv++;
- }
-
- if (k[0])
- addattr_l(&req.n, sizeof(req), TCA_KIND, k, strlen(k)+1);
- if (est.ewma_log)
- addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));
-
- if (q) {
- if (!q->parse_qopt) {
- fprintf(stderr, "qdisc '%s' does not support option parsing\n", k);
- return -1;
- }
- if (q->parse_qopt(q, argc, argv, &req.n))
- return 1;
- } else {
- if (argc) {
- if (matches(*argv, "help") == 0)
- usage();
-
- fprintf(stderr, "Garbage instead of arguments \"%s ...\". Try \"tc qdisc help\".\n", *argv);
- return -1;
- }
- }
-
- if (d[0]) {
- int idx;
-
- ll_init_map(&rth);
-
- if ((idx = ll_name_to_index(d)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
- return 1;
- }
- req.t.tcm_ifindex = idx;
- }
-
- if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
- return 2;
-
- return 0;
-}
-
-static int filter_ifindex;
-
-static int print_qdisc(const struct sockaddr_nl *who,
- struct nlmsghdr *n,
- void *arg)
-{
- FILE *fp = (FILE*)arg;
- struct tcmsg *t = NLMSG_DATA(n);
- int len = n->nlmsg_len;
- struct rtattr * tb[TCA_MAX+1];
- struct qdisc_util *q;
- char abuf[256];
-
- if (n->nlmsg_type != RTM_NEWQDISC && n->nlmsg_type != RTM_DELQDISC) {
- fprintf(stderr, "Not a qdisc\n");
- return 0;
- }
- len -= NLMSG_LENGTH(sizeof(*t));
- if (len < 0) {
- fprintf(stderr, "Wrong len %d\n", len);
- return -1;
- }
-
- if (filter_ifindex && filter_ifindex != t->tcm_ifindex)
- return 0;
-
- memset(tb, 0, sizeof(tb));
- parse_rtattr(tb, TCA_MAX, TCA_RTA(t), len);
-
- if (tb[TCA_KIND] == NULL) {
- fprintf(stderr, "print_qdisc: NULL kind\n");
- return -1;
- }
-
- if (n->nlmsg_type == RTM_DELQDISC)
- fprintf(fp, "deleted ");
-
- fprintf(fp, "qdisc %s %x: ", (char*)RTA_DATA(tb[TCA_KIND]), t->tcm_handle>>16);
- if (filter_ifindex == 0)
- fprintf(fp, "dev %s ", ll_index_to_name(t->tcm_ifindex));
- if (t->tcm_parent == TC_H_ROOT)
- fprintf(fp, "root ");
- else if (t->tcm_parent) {
- print_tc_classid(abuf, sizeof(abuf), t->tcm_parent);
- fprintf(fp, "parent %s ", abuf);
- }
- if (t->tcm_info != 1) {
- fprintf(fp, "refcnt %d ", t->tcm_info);
- }
- /* pfifo_fast is generic enough to warrant the hardcoding --JHS */
-
- if (0 == strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])))
- q = get_qdisc_kind("prio");
- else
- q = get_qdisc_kind(RTA_DATA(tb[TCA_KIND]));
-
- if (tb[TCA_OPTIONS]) {
- if (q)
- q->print_qopt(q, fp, tb[TCA_OPTIONS]);
- else
- fprintf(fp, "[cannot parse qdisc parameters]");
- }
- fprintf(fp, "\n");
- if (show_stats) {
- struct rtattr *xstats = NULL;
-
- if (tb[TCA_STATS] || tb[TCA_STATS2] || tb[TCA_XSTATS]) {
- print_tcstats_attr(fp, tb, " ", &xstats);
- fprintf(fp, "\n");
- }
-
- if (q && xstats && q->print_xstats) {
- q->print_xstats(q, fp, xstats);
- fprintf(fp, "\n");
- }
- }
- fflush(fp);
- return 0;
-}
-
-
-int tc_qdisc_list(int argc, char **argv)
-{
- struct tcmsg t;
- char d[16];
-
- memset(&t, 0, sizeof(t));
- t.tcm_family = AF_UNSPEC;
- memset(&d, 0, sizeof(d));
-
- while (argc > 0) {
- if (strcmp(*argv, "dev") == 0) {
- NEXT_ARG();
- strncpy(d, *argv, sizeof(d)-1);
-#ifdef TC_H_INGRESS
- } else if (strcmp(*argv, "ingress") == 0) {
- if (t.tcm_parent) {
- fprintf(stderr, "Duplicate parent ID\n");
- usage();
- }
- t.tcm_parent = TC_H_INGRESS;
-#endif
- } else if (matches(*argv, "help") == 0) {
- usage();
- } else {
- fprintf(stderr, "What is \"%s\"? Try \"tc qdisc help\".\n", *argv);
- return -1;
- }
-
- argc--; argv++;
- }
-
- ll_init_map(&rth);
-
- if (d[0]) {
- if ((t.tcm_ifindex = ll_name_to_index(d)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
- return 1;
- }
- filter_ifindex = t.tcm_ifindex;
- }
-
- if (rtnl_dump_request(&rth, RTM_GETQDISC, &t, sizeof(t)) < 0) {
- perror("Cannot send dump request");
- return 1;
- }
-
- if (rtnl_dump_filter(&rth, print_qdisc, stdout, NULL, NULL) < 0) {
- fprintf(stderr, "Dump terminated\n");
- return 1;
- }
-
- return 0;
-}
-
-int do_qdisc(int argc, char **argv)
-{
- if (argc < 1)
- return tc_qdisc_list(0, NULL);
- if (matches(*argv, "add") == 0)
- return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_EXCL|NLM_F_CREATE, argc-1, argv+1);
- if (matches(*argv, "change") == 0)
- return tc_qdisc_modify(RTM_NEWQDISC, 0, argc-1, argv+1);
- if (matches(*argv, "replace") == 0)
- return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
- if (matches(*argv, "link") == 0)
- return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_REPLACE, argc-1, argv+1);
- if (matches(*argv, "delete") == 0)
- return tc_qdisc_modify(RTM_DELQDISC, 0, argc-1, argv+1);
-#if 0
- if (matches(*argv, "get") == 0)
- return tc_qdisc_get(RTM_GETQDISC, 0, argc-1, argv+1);
-#endif
- if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
- || matches(*argv, "lst") == 0)
- return tc_qdisc_list(argc-1, argv+1);
- if (matches(*argv, "help") == 0)
- usage();
- fprintf(stderr, "Command \"%s\" is unknown, try \"tc qdisc help\".\n", *argv);
- return -1;
-}
git://git.onelab.eu / iproute2.git / blobdiff