src/nl-neigh-delete.c

   1 /*
   2  * src/nl-neigh-delete.c     Delete a neighbour
   3  *
   4  *      This library is free software; you can redistribute it and/or
   5  *      modify it under the terms of the GNU Lesser General Public
   6  *      License as published by the Free Software Foundation version 2.1
   7  *      of the License.
   8  *
   9  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  10  */
  11
  12 #include <netlink/cli/utils.h>
  13 #include <netlink/cli/neigh.h>
  14 #include <netlink/cli/link.h>
  15
  16 static int quiet = 0, default_yes = 0, deleted = 0, interactive = 0;
  17 struct nl_sock *sock;
  18
  19 static void print_usage(void)
  20 {
  21         printf(
  22         "Usage: nl-neigh-delete [OPTION]... [NEIGHBOUR]\n"
  23         "\n"
  24         "Options\n"
  25         " -i, --interactive     Run interactively\n"
  26         "     --yes             Set default answer to yes\n"
  27         " -q, --quiet           Do not print informal notifications\n"
  28         " -h, --help            Show this help\n"
  29         " -v, --version         Show versioning information\n"
  30         "\n"
  31         "Neighbour Options\n"
  32         " -a, --addr=ADDR       Destination address of neighbour\n"
  33         " -l, --lladdr=ADDR     Link layer address of neighbour\n"
  34         " -d, --dev=DEV         Device the neighbour is connected to\n"
  35         "     --family=FAMILY   Destination address family\n"
  36         "     --state=STATE     Neighbour state, (default = permanent)\n"
  37         );
  38
  39         exit(0);
  40 }
  41
  42 static void delete_cb(struct nl_object *obj, void *arg)
  43 {
  44         struct rtnl_neigh *neigh = nl_object_priv(obj);
  45         struct nl_dump_params params = {
  46                 .dp_type = NL_DUMP_LINE,
  47                 .dp_fd = stdout,
  48         };
  49         int err;
  50
  51         if (interactive && !nl_cli_confirm(obj, &params, default_yes))
  52                 return;
  53
  54         if ((err = rtnl_neigh_delete(sock, neigh, 0)) < 0)
  55                 nl_cli_fatal(err, "Unable to delete neighbour: %s\n",
  56                              nl_geterror(err));
  57
  58         if (!quiet) {
  59                 printf("Deleted ");
  60                 nl_object_dump(obj, &params);
  61         }
  62
  63         deleted++;
  64 }
  65
  66 int main(int argc, char *argv[])
  67 {
  68         struct rtnl_neigh *neigh;
  69         struct nl_cache *link_cache, *neigh_cache;
  70
  71         sock = nl_cli_alloc_socket();
  72         nl_cli_connect(sock, NETLINK_ROUTE);
  73         link_cache = nl_cli_link_alloc_cache(sock);
  74         neigh_cache = nl_cli_neigh_alloc_cache(sock);
  75         neigh = nl_cli_neigh_alloc();
  76
  77         for (;;) {
  78                 int c, optidx = 0;
  79                 enum {
  80                         ARG_FAMILY = 257,
  81                         ARG_STATE = 258,
  82                         ARG_YES,
  83                 };
  84                 static struct option long_opts[] = {
  85                         { "interactive", 0, 0, 'i' },
  86                         { "yes", 0, 0, ARG_YES },
  87                         { "quiet", 0, 0, 'q' },
  88                         { "help", 0, 0, 'h' },
  89                         { "version", 0, 0, 'v' },
  90                         { "addr", 1, 0, 'a' },
  91                         { "lladdr", 1, 0, 'l' },
  92                         { "dev", 1, 0, 'd' },
  93                         { "family", 1, 0, ARG_FAMILY },
  94                         { "state", 1, 0, ARG_STATE },
  95                         { 0, 0, 0, 0 }
  96                 };
  97
  98                 c = getopt_long(argc, argv, "qhva:l:d:", long_opts, &optidx);
  99                 if (c == -1)
 100                         break;
 101
 102                 switch (c) {
 103                 case 'i': interactive = 1; break;
 104                 case ARG_YES: default_yes = 1; break;
 105                 case 'q': quiet = 1; break;
 106                 case 'h': print_usage(); break;
 107                 case 'v': nl_cli_print_version(); break;
 108                 case 'a': nl_cli_neigh_parse_dst(neigh, optarg); break;
 109                 case 'l': nl_cli_neigh_parse_lladdr(neigh, optarg); break;
 110                 case 'd': nl_cli_neigh_parse_dev(neigh, link_cache, optarg); break;
 111                 case ARG_FAMILY: nl_cli_neigh_parse_family(neigh, optarg); break;
 112                 case ARG_STATE: nl_cli_neigh_parse_state(neigh, optarg); break;
 113                 }
 114         }
 115
 116         nl_cache_foreach_filter(neigh_cache, OBJ_CAST(neigh), delete_cb, NULL);
 117
 118         if (!quiet)
 119                 printf("Deleted %d neighbours\n", deleted);
 120
 121         return 0;
 122 }