summaryrefslogtreecommitdiffstats
path: root/tc/tc_monitor.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:14:35 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:14:35 +0000
commit9b8a97db9ec4b795e29e72289005fbc58484ebeb (patch)
treee24ca2d68215e57b4759fe5c032629821eabb250 /tc/tc_monitor.c
parentInitial commit. (diff)
downloadiproute2-9b8a97db9ec4b795e29e72289005fbc58484ebeb.tar.xz
iproute2-9b8a97db9ec4b795e29e72289005fbc58484ebeb.zip
Adding upstream version 6.8.0.upstream/6.8.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tc/tc_monitor.c')
-rw-r--r--tc/tc_monitor.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/tc/tc_monitor.c b/tc/tc_monitor.c
new file mode 100644
index 0000000..5b9bccb
--- /dev/null
+++ b/tc/tc_monitor.c
@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * tc_monitor.c "tc monitor".
+ *
+ * Authors: Jamal Hadi Salim
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <time.h>
+#include "rt_names.h"
+#include "utils.h"
+#include "tc_util.h"
+#include "tc_common.h"
+
+
+static void usage(void) __attribute__((noreturn));
+
+static void usage(void)
+{
+ fprintf(stderr, "Usage: tc [-timestamp [-tshort] monitor\n");
+ exit(-1);
+}
+
+
+static int accept_tcmsg(struct rtnl_ctrl_data *ctrl,
+ struct nlmsghdr *n, void *arg)
+{
+ FILE *fp = (FILE *)arg;
+
+ if (timestamp)
+ print_timestamp(fp);
+
+ if (n->nlmsg_type == RTM_NEWTFILTER ||
+ n->nlmsg_type == RTM_DELTFILTER ||
+ n->nlmsg_type == RTM_NEWCHAIN ||
+ n->nlmsg_type == RTM_DELCHAIN) {
+ print_filter(n, arg);
+ return 0;
+ }
+ if (n->nlmsg_type == RTM_NEWTCLASS || n->nlmsg_type == RTM_DELTCLASS) {
+ print_class(n, arg);
+ return 0;
+ }
+ if (n->nlmsg_type == RTM_NEWQDISC || n->nlmsg_type == RTM_DELQDISC) {
+ print_qdisc(n, arg);
+ return 0;
+ }
+ if (n->nlmsg_type == RTM_GETACTION || n->nlmsg_type == RTM_NEWACTION ||
+ n->nlmsg_type == RTM_DELACTION) {
+ print_action(n, arg);
+ return 0;
+ }
+ if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
+ n->nlmsg_type != NLMSG_DONE) {
+ fprintf(stderr, "Unknown message: length %08d type %08x flags %08x\n",
+ n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
+ }
+ return 0;
+}
+
+int do_tcmonitor(int argc, char **argv)
+{
+ struct rtnl_handle rth;
+ char *file = NULL;
+ unsigned int groups = nl_mgrp(RTNLGRP_TC);
+
+ while (argc > 0) {
+ if (matches(*argv, "file") == 0) {
+ NEXT_ARG();
+ file = *argv;
+ } else {
+ if (matches(*argv, "help") == 0) {
+ usage();
+ } else {
+ fprintf(stderr, "Argument \"%s\" is unknown, try \"tc monitor help\".\n", *argv);
+ exit(-1);
+ }
+ }
+ argc--; argv++;
+ }
+
+ if (file) {
+ FILE *fp = fopen(file, "r");
+ int ret;
+
+ if (fp == NULL) {
+ perror("Cannot fopen");
+ exit(-1);
+ }
+
+ ret = rtnl_from_file(fp, accept_tcmsg, stdout);
+ fclose(fp);
+ return ret;
+ }
+
+ if (rtnl_open(&rth, groups) < 0)
+ exit(1);
+
+ ll_init_map(&rth);
+
+ if (rtnl_listen(&rth, accept_tcmsg, (void *)stdout) < 0) {
+ rtnl_close(&rth);
+ exit(2);
+ }
+
+ rtnl_close(&rth);
+ exit(0);
+}