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
17 #include <sys/socket.h>
18 #include <netinet/in.h>
19 #include <arpa/inet.h>
25 #include "tc_common.h"
28 static void usage(void) __attribute__((noreturn));
30 static void usage(void)
32 fprintf(stderr, "Usage: tc [-timestamp [-tshort] monitor\n");
37 static int accept_tcmsg(struct rtnl_ctrl_data *ctrl,
38 struct nlmsghdr *n, void *arg)
40 FILE *fp = (FILE *)arg;
45 if (n->nlmsg_type == RTM_NEWTFILTER ||
46 n->nlmsg_type == RTM_DELTFILTER ||
47 n->nlmsg_type == RTM_NEWCHAIN ||
48 n->nlmsg_type == RTM_DELCHAIN) {
52 if (n->nlmsg_type == RTM_NEWTCLASS || n->nlmsg_type == RTM_DELTCLASS) {
56 if (n->nlmsg_type == RTM_NEWQDISC || n->nlmsg_type == RTM_DELQDISC) {
60 if (n->nlmsg_type == RTM_GETACTION || n->nlmsg_type == RTM_NEWACTION ||
61 n->nlmsg_type == RTM_DELACTION) {
65 if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
66 n->nlmsg_type != NLMSG_DONE) {
67 fprintf(fp, "Unknown message: length %08d type %08x flags %08x\n",
68 n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
73 int do_tcmonitor(int argc, char **argv)
75 struct rtnl_handle rth;
77 unsigned int groups = nl_mgrp(RTNLGRP_TC);
80 if (matches(*argv, "file") == 0) {
84 if (matches(*argv, "help") == 0) {
87 fprintf(stderr, "Argument \"%s\" is unknown, try \"tc monitor help\".\n", *argv);
95 FILE *fp = fopen(file, "r");
99 perror("Cannot fopen");
103 ret = rtnl_from_file(fp, accept_tcmsg, stdout);
108 if (rtnl_open(&rth, groups) < 0)
113 if (rtnl_listen(&rth, accept_tcmsg, (void *)stdout) < 0) {