2 * tc_monitor.c "tc monitor".
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: Jamal Hadi Salim
18 #include <sys/socket.h>
19 #include <netinet/in.h>
20 #include <arpa/inet.h>
26 #include "tc_common.h"
29 static void usage(void) __attribute__((noreturn));
31 static void usage(void)
33 fprintf(stderr, "Usage: tc monitor\n");
38 int accept_tcmsg(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
40 FILE *fp = (FILE*)arg;
42 if (n->nlmsg_type == RTM_NEWTFILTER || n->nlmsg_type == RTM_DELTFILTER) {
43 print_filter(who, n, arg);
46 if (n->nlmsg_type == RTM_NEWTCLASS || n->nlmsg_type == RTM_DELTCLASS) {
47 print_class(who, n, arg);
50 if (n->nlmsg_type == RTM_NEWQDISC || n->nlmsg_type == RTM_DELQDISC) {
51 print_qdisc(who, n, arg);
54 if (n->nlmsg_type == RTM_GETACTION || n->nlmsg_type == RTM_NEWACTION ||
55 n->nlmsg_type == RTM_DELACTION) {
56 print_action(who, n, arg);
59 if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
60 n->nlmsg_type != NLMSG_DONE) {
61 fprintf(fp, "Unknown message: length %08d type %08x flags %08x\n",
62 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
67 int do_tcmonitor(int argc, char **argv)
69 struct rtnl_handle rth;
71 unsigned groups = nl_mgrp(RTNLGRP_TC);
74 if (matches(*argv, "file") == 0) {
78 if (matches(*argv, "help") == 0) {
81 fprintf(stderr, "Argument \"%s\" is unknown, try \"tc monitor help\".\n", *argv);
90 fp = fopen(file, "r");
92 perror("Cannot fopen");
95 return rtnl_from_file(fp, accept_tcmsg, (void*)stdout);
98 if (rtnl_open(&rth, groups) < 0)
103 if (rtnl_listen(&rth, accept_tcmsg, (void*)stdout) < 0) {