2 * tc.c "tc" utility frontend.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
13 * Petri Mattila <petri@prihateam.fi> 990308: wrong memset's resulted in faults
22 #include <sys/socket.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
31 #include "tc_common.h"
38 int resolve_hosts = 0;
41 struct rtnl_handle rth;
43 static void *BODY = NULL; /* cached handle dlopen(NULL) */
44 static struct qdisc_util * qdisc_list;
45 static struct filter_util * filter_list;
47 static int print_noqopt(struct qdisc_util *qu, FILE *f,
50 if (opt && RTA_PAYLOAD(opt))
51 fprintf(f, "[Unknown qdisc, optlen=%u] ",
52 (unsigned) RTA_PAYLOAD(opt));
56 static int parse_noqopt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
59 fprintf(stderr, "Unknown qdisc \"%s\", hence option \"%s\" is unparsable\n", qu->id, *argv);
65 static int print_nofopt(struct filter_util *qu, FILE *f, struct rtattr *opt, __u32 fhandle)
67 if (opt && RTA_PAYLOAD(opt))
68 fprintf(f, "fh %08x [Unknown filter, optlen=%u] ",
69 fhandle, (unsigned) RTA_PAYLOAD(opt));
71 fprintf(f, "fh %08x ", fhandle);
75 static int parse_nofopt(struct filter_util *qu, char *fhandle, int argc, char **argv, struct nlmsghdr *n)
80 fprintf(stderr, "Unknown filter \"%s\", hence option \"%s\" is unparsable\n", qu->id, *argv);
84 struct tcmsg *t = NLMSG_DATA(n);
85 if (get_u32(&handle, fhandle, 16)) {
86 fprintf(stderr, "Unparsable filter ID \"%s\"\n", fhandle);
89 t->tcm_handle = handle;
94 struct qdisc_util *get_qdisc_kind(const char *str)
100 for (q = qdisc_list; q; q = q->next)
101 if (strcmp(q->id, str) == 0)
104 snprintf(buf, sizeof(buf), "%s/q_%s.so", get_tc_lib(), str);
105 dlh = dlopen(buf, RTLD_LAZY);
107 /* look in current binary, only open once */
110 dlh = BODY = dlopen(NULL, RTLD_LAZY);
116 snprintf(buf, sizeof(buf), "%s_qdisc_util", str);
122 q->next = qdisc_list;
127 q = malloc(sizeof(*q));
130 memset(q, 0, sizeof(*q));
131 q->id = strcpy(malloc(strlen(str)+1), str);
132 q->parse_qopt = parse_noqopt;
133 q->print_qopt = print_noqopt;
140 struct filter_util *get_filter_kind(const char *str)
144 struct filter_util *q;
146 for (q = filter_list; q; q = q->next)
147 if (strcmp(q->id, str) == 0)
150 snprintf(buf, sizeof(buf), "%s/f_%s.so", get_tc_lib(), str);
151 dlh = dlopen(buf, RTLD_LAZY);
155 dlh = BODY = dlopen(NULL, RTLD_LAZY);
161 snprintf(buf, sizeof(buf), "%s_filter_util", str);
167 q->next = filter_list;
171 q = malloc(sizeof(*q));
173 memset(q, 0, sizeof(*q));
174 strncpy(q->id, str, 15);
175 q->parse_fopt = parse_nofopt;
176 q->print_fopt = print_nofopt;
182 static void usage(void)
184 fprintf(stderr, "Usage: tc [ OPTIONS ] OBJECT { COMMAND | help }\n"
185 " tc [-force] -batch filename\n"
186 "where OBJECT := { qdisc | class | filter | action | monitor }\n"
187 " OPTIONS := { -s[tatistics] | -d[etails] | -r[aw] | -p[retty] | -b[atch] [filename] }\n");
190 static int do_cmd(int argc, char **argv)
192 if (matches(*argv, "qdisc") == 0)
193 return do_qdisc(argc-1, argv+1);
195 if (matches(*argv, "class") == 0)
196 return do_class(argc-1, argv+1);
198 if (matches(*argv, "filter") == 0)
199 return do_filter(argc-1, argv+1);
201 if (matches(*argv, "actions") == 0)
202 return do_action(argc-1, argv+1);
204 if (matches(*argv, "monitor") == 0)
205 return do_tcmonitor(argc-1, argv+1);
207 if (matches(*argv, "help") == 0) {
212 fprintf(stderr, "Object \"%s\" is unknown, try \"tc help\".\n",
217 static int batch(const char *name)
223 if (name && strcmp(name, "-") != 0) {
224 if (freopen(name, "r", stdin) == NULL) {
225 fprintf(stderr, "Cannot open file \"%s\" for reading: %s\n",
226 name, strerror(errno));
233 if (rtnl_open(&rth, 0) < 0) {
234 fprintf(stderr, "Cannot open rtnetlink\n");
239 while (getcmdline(&line, &len, stdin) != -1) {
243 largc = makeargs(line, largv, 100);
245 continue; /* blank line */
247 if (do_cmd(largc, largv)) {
248 fprintf(stderr, "Command failed %s:%d\n", name, cmdlineno);
262 int main(int argc, char **argv)
266 char *batchfile = NULL;
269 if (argv[1][0] != '-')
271 if (matches(argv[1], "-stats") == 0 ||
272 matches(argv[1], "-statistics") == 0) {
274 } else if (matches(argv[1], "-details") == 0) {
276 } else if (matches(argv[1], "-raw") == 0) {
278 } else if (matches(argv[1], "-pretty") == 0) {
280 } else if (matches(argv[1], "-Version") == 0) {
281 printf("tc utility, iproute2-ss%s\n", SNAPSHOT);
283 } else if (matches(argv[1], "-iec") == 0) {
285 } else if (matches(argv[1], "-help") == 0) {
288 } else if (matches(argv[1], "-force") == 0) {
290 } else if (matches(argv[1], "-batch") == 0) {
296 fprintf(stderr, "Option \"%s\" is unknown, try \"tc -help\".\n", argv[1]);
303 return batch(batchfile);
311 if (rtnl_open(&rth, 0) < 0) {
312 fprintf(stderr, "Cannot open rtnetlink\n");
316 ret = do_cmd(argc-1, argv+1);