This commit was generated by cvs2svn to compensate for changes in r1650,

[iproute2.git] / ip / ipmonitor.c

diff --git a/ip/ipmonitor.c b/ip/ipmonitor.c
new file mode 100644 (file)
index 0000000..cdaeb6f
--- /dev/null
+++ b/ip/ipmonitor.c
@@ -0,0 +1,165 @@
+/*
+ * 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 (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)
+{
+       struct rtnl_handle rth;
+       char *file = NULL;
+       unsigned groups = ~RTMGRP_TC;
+       int llink=0;
+       int laddr=0;
+       int lroute=0;
+       int lprefix=0;
+
+       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, (void*)stdout);
+       }
+
+       if (rtnl_open(&rth, groups) < 0)
+               exit(1);
+
+       ll_init_map(&rth);
+
+       if (rtnl_listen(&rth, accept_msg, (void*)stdout) < 0)
+               exit(2);
+
+       exit(0);
+}