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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-09 13:14:35 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-09 13:14:35 +0000 |
commit | 9b8a97db9ec4b795e29e72289005fbc58484ebeb (patch) | |
tree | e24ca2d68215e57b4759fe5c032629821eabb250 /tc/tc_monitor.c | |
parent | Initial commit. (diff) | |
download | iproute2-9b8a97db9ec4b795e29e72289005fbc58484ebeb.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.c | 115 |
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); +} |