+++ /dev/null
-/*
- * ipmonitor.c "ip monitor".
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <string.h>
-#include <time.h>
-
-#include "utils.h"
-#include "ip_common.h"
-
-static void usage(void) __attribute__((noreturn));
-
-static void usage(void)
-{
- fprintf(stderr, "Usage: ip monitor [ all | LISTofOBJECTS ]\n");
- exit(-1);
-}
-
-
-int accept_msg(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg)
-{
- FILE *fp = (FILE*)arg;
-
- if (timestamp)
- print_timestamp(fp);
-
- if (n->nlmsg_type == RTM_NEWROUTE || n->nlmsg_type == RTM_DELROUTE) {
- print_route(who, n, arg);
- return 0;
- }
- if (n->nlmsg_type == RTM_NEWLINK || n->nlmsg_type == RTM_DELLINK) {
- ll_remember_index(who, n, NULL);
- print_linkinfo(who, n, arg);
- return 0;
- }
- if (n->nlmsg_type == RTM_NEWADDR || n->nlmsg_type == RTM_DELADDR) {
- print_addrinfo(who, n, arg);
- return 0;
- }
- if (n->nlmsg_type == RTM_NEWNEIGH || n->nlmsg_type == RTM_DELNEIGH) {
- print_neigh(who, n, arg);
- return 0;
- }
- if (n->nlmsg_type == RTM_NEWPREFIX) {
- print_prefix(who, n, arg);
- return 0;
- }
- if (n->nlmsg_type == 15) {
- char *tstr;
- time_t secs = ((__u32*)NLMSG_DATA(n))[0];
- long usecs = ((__u32*)NLMSG_DATA(n))[1];
- tstr = asctime(localtime(&secs));
- tstr[strlen(tstr)-1] = 0;
- fprintf(fp, "Timestamp: %s %lu us\n", tstr, usecs);
- return 0;
- }
- if (n->nlmsg_type == RTM_NEWQDISC ||
- n->nlmsg_type == RTM_DELQDISC ||
- n->nlmsg_type == RTM_NEWTCLASS ||
- n->nlmsg_type == RTM_DELTCLASS ||
- n->nlmsg_type == RTM_NEWTFILTER ||
- n->nlmsg_type == RTM_DELTFILTER)
- return 0;
- if (n->nlmsg_type != NLMSG_ERROR && n->nlmsg_type != NLMSG_NOOP &&
- n->nlmsg_type != NLMSG_DONE) {
- fprintf(fp, "Unknown message: %08x %08x %08x\n",
- n->nlmsg_len, n->nlmsg_type, n->nlmsg_flags);
- }
- return 0;
-}
-
-int do_ipmonitor(int argc, char **argv)
-{
- char *file = NULL;
- unsigned groups = ~RTMGRP_TC;
- int llink=0;
- int laddr=0;
- int lroute=0;
- int lprefix=0;
-
- rtnl_close(&rth);
- ipaddr_reset_filter(1);
- iproute_reset_filter();
- ipneigh_reset_filter();
-
- while (argc > 0) {
- if (matches(*argv, "file") == 0) {
- NEXT_ARG();
- file = *argv;
- } else if (matches(*argv, "link") == 0) {
- llink=1;
- groups = 0;
- } else if (matches(*argv, "address") == 0) {
- laddr=1;
- groups = 0;
- } else if (matches(*argv, "route") == 0) {
- lroute=1;
- groups = 0;
- } else if (matches(*argv, "prefix") == 0) {
- lprefix=1;
- groups = 0;
- } else if (strcmp(*argv, "all") == 0) {
- groups = ~RTMGRP_TC;
- } else if (matches(*argv, "help") == 0) {
- usage();
- } else {
- fprintf(stderr, "Argument \"%s\" is unknown, try \"ip monitor help\".\n", *argv);
- exit(-1);
- }
- argc--; argv++;
- }
-
- if (llink)
- groups |= RTMGRP_LINK;
- if (laddr) {
- if (!preferred_family || preferred_family == AF_INET)
- groups |= RTMGRP_IPV4_IFADDR;
- if (!preferred_family || preferred_family == AF_INET6)
- groups |= RTMGRP_IPV6_IFADDR;
- }
- if (lroute) {
- if (!preferred_family || preferred_family == AF_INET)
- groups |= RTMGRP_IPV4_ROUTE;
- if (!preferred_family || preferred_family == AF_INET6)
- groups |= RTMGRP_IPV6_ROUTE;
- }
- if (lprefix) {
- if (!preferred_family || preferred_family == AF_INET6)
- groups |= RTMGRP_IPV6_PREFIX;
- }
-
- if (file) {
- FILE *fp;
- fp = fopen(file, "r");
- if (fp == NULL) {
- perror("Cannot fopen");
- exit(-1);
- }
- return rtnl_from_file(fp, accept_msg, stdout);
- }
-
- if (rtnl_open(&rth, groups) < 0)
- exit(1);
- ll_init_map(&rth);
-
- if (rtnl_listen(&rth, accept_msg, stdout) < 0)
- exit(2);
-
- return 0;
-}