src/nl-neigh-add.c

   1 /*
   2  * src/ nl-neigh-add.c     Add 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;
  17
  18 static void print_usage(void)
  19 {
  20         printf(
  21         "Usage: nl-neigh-add [OPTION]... NEIGHBOUR\n"
  22         "\n"
  23         "Options\n"
  24         "     --update-only     Do not create neighbour, updates exclusively\n"
  25         "     --create-only     Do not update neighbour if it exists already.\n"
  26         " -q, --quiet           Do not print informal notifications\n"
  27         " -h, --help            Show this help\n"
  28         " -v, --version         Show versioning information\n"
  29         "\n"
  30         "Neighbour Options\n"
  31         " -a, --addr=ADDR       Destination address of neighbour\n"
  32         " -l, --lladdr=ADDR     Link layer address of neighbour\n"
  33         " -d, --dev=DEV         Device the neighbour is connected to\n"
  34         "     --state=STATE     Neighbour state, (default = permanent)\n"
  35         "\n"
  36         "Example\n"
  37         "  nl-neigh-add --create-only --addr=10.0.0.1 --dev=eth0 \\\n"
  38         "               --lladdr=AA:BB:CC:DD:EE:FF\n"
  39         );
  40
  41         exit(0);
  42 }
  43
  44 int main(int argc, char *argv[])
  45 {
  46         struct nl_sock *sock;
  47         struct rtnl_neigh *neigh;
  48         struct nl_cache *link_cache;
  49         struct nl_dump_params dp = {
  50                 .dp_type = NL_DUMP_LINE,
  51                 .dp_fd = stdout,
  52         };
  53         int err, ok = 0, nlflags = NLM_F_REPLACE | NLM_F_CREATE;
  54
  55         sock = nl_cli_alloc_socket();
  56         nl_cli_connect(sock, NETLINK_ROUTE);
  57         link_cache = nl_cli_link_alloc_cache(sock);
  58         neigh = nl_cli_neigh_alloc();
  59
  60         for (;;) {
  61                 int c, optidx = 0;
  62                 enum {
  63                         ARG_UPDATE_ONLY = 257,
  64                         ARG_CREATE_ONLY = 258,
  65                         ARG_STATE,
  66                 };
  67                 static struct option long_opts[] = {
  68                         { "update-only", 0, 0, ARG_UPDATE_ONLY },
  69                         { "create-only", 0, 0, ARG_CREATE_ONLY },
  70                         { "quiet", 0, 0, 'q' },
  71                         { "help", 0, 0, 'h' },
  72                         { "version", 0, 0, 'v' },
  73                         { "addr", 1, 0, 'a' },
  74                         { "lladdr", 1, 0, 'l' },
  75                         { "dev", 1, 0, 'd' },
  76                         { "state", 1, 0, ARG_STATE },
  77                         { 0, 0, 0, 0 }
  78                 };
  79
  80                 c = getopt_long(argc, argv, "qhva:l:d:", long_opts, &optidx);
  81                 if (c == -1)
  82                         break;
  83
  84                 switch (c) {
  85                 case ARG_UPDATE_ONLY: nlflags &= ~NLM_F_CREATE; break;
  86                 case ARG_CREATE_ONLY: nlflags |= NLM_F_EXCL; break;
  87                 case 'q': quiet = 1; break;
  88                 case 'h': print_usage(); break;
  89                 case 'v': nl_cli_print_version(); break;
  90                 case 'a': ok++; nl_cli_neigh_parse_dst(neigh, optarg); break;
  91                 case 'l': nl_cli_neigh_parse_lladdr(neigh, optarg); break;
  92                 case 'd': nl_cli_neigh_parse_dev(neigh, link_cache, optarg); break;
  93                 case ARG_STATE: nl_cli_neigh_parse_state(neigh, optarg); break;
  94                 }
  95         }
  96
  97         if (!ok)
  98                 print_usage();
  99
 100         if ((err = rtnl_neigh_add(sock, neigh, nlflags)) < 0)
 101                 nl_cli_fatal(err, "Unable to add neighbour: %s",
 102                              nl_geterror(err));
 103
 104         if (!quiet) {
 105                 printf("Added ");
 106                 nl_object_dump(OBJ_CAST(neigh), &dp);
 107         }
 108
 109         return 0;
 110 }