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) 2003-2006 Thomas Graf <tgraf@suug.ch>
  10  */
  11
  12 #include "utils.h"
  13
  14 int main(int argc, char *argv[])
  15 {
  16         struct nl_handle *nlh;
  17         struct rtnl_neigh *neigh;
  18         struct nl_addr *addr;
  19         int err = 1;
  20
  21         if (nltool_init(argc, argv) < 0)
  22                 return -1;
  23
  24         if (argc < 4 || !strcmp(argv[1], "-h")) {
  25                 printf("Usage: nl-neigh-add <addr> <lladdr> "
  26                        "<ifindex> [<state>]\n");
  27                 return 1;
  28         }
  29
  30         nlh = nl_handle_alloc_nondefault(nltool_cbset);
  31         if (!nlh)
  32                 return -1;
  33
  34         neigh = rtnl_neigh_alloc();
  35         if (!neigh)
  36                 goto errout;
  37
  38         if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
  39                 goto errout_free;
  40
  41         addr = nltool_addr_parse(argv[1]);
  42         if (!addr)
  43                 goto errout_close;
  44         rtnl_neigh_set_dst(neigh, addr);
  45         nl_addr_put(addr);
  46
  47         addr = nltool_addr_parse(argv[2]);
  48         if (!addr)
  49                 goto errout_close;
  50         rtnl_neigh_set_lladdr(neigh, addr);
  51         nl_addr_put(addr);
  52
  53         rtnl_neigh_set_ifindex(neigh, strtoul(argv[3], NULL, 0));
  54
  55         if (argc > 4) {
  56                 int state = rtnl_neigh_str2state(argv[4]);
  57                 if (state < 0) {
  58                         fprintf(stderr, "Unknown state \"%s\"\n", argv[4]);
  59                         goto errout_close;
  60                 }
  61                 rtnl_neigh_set_state(neigh, state);
  62         } else
  63                 rtnl_neigh_set_state(neigh, NUD_PERMANENT);
  64
  65         if (rtnl_neigh_add(nlh, neigh, 0) < 0) {
  66                 fprintf(stderr, "Unable to add address: %s\n", nl_geterror());
  67                 goto errout_close;
  68         }
  69
  70         err = 0;
  71
  72 errout_close:
  73         nl_close(nlh);
  74 errout_free:
  75         rtnl_neigh_put(neigh);
  76 errout:
  77         nl_handle_destroy(nlh);
  78         return err;
  79 }