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nl-neigh-add.c

/*
 * src/ nl-neigh-add.c     Add a neighbour
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation version 2.1
 *    of the License.
 *
 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
 */

#include <netlink/cli/utils.h>
#include <netlink/cli/neigh.h>
#include <netlink/cli/link.h>

static int quiet = 0;

static void print_usage(void)
{
      printf(
      "Usage: nl-neigh-add [OPTION]... NEIGHBOUR\n"
      "\n"
      "Options\n"
      "     --update-only     Do not create neighbour, updates exclusively\n"
      "     --create-only     Do not update neighbour if it exists already.\n"
      " -q, --quiet           Do not print informal notifications\n"
      " -h, --help            Show this help\n"
      " -v, --version         Show versioning information\n"
      "\n"
      "Neighbour Options\n"
      " -a, --addr=ADDR       Destination address of neighbour\n"
      " -l, --lladdr=ADDR     Link layer address of neighbour\n"
      " -d, --dev=DEV         Device the neighbour is connected to\n"
      "     --state=STATE     Neighbour state, (default = permanent)\n"
      "\n"
      "Example\n"
      "  nl-neigh-add --create-only --addr=10.0.0.1 --dev=eth0 \\\n"
      "               --lladdr=AA:BB:CC:DD:EE:FF\n"
      );

      exit(0);
}

int main(int argc, char *argv[])
{
      struct nl_sock *sock;
      struct rtnl_neigh *neigh;
      struct nl_cache *link_cache;
      struct nl_dump_params dp = {
            .dp_type = NL_DUMP_LINE,
            .dp_fd = stdout,
      };
      int err, ok = 0, nlflags = NLM_F_REPLACE | NLM_F_CREATE;
 
      sock = nl_cli_alloc_socket();
      nl_cli_connect(sock, NETLINK_ROUTE);
      link_cache = nl_cli_link_alloc_cache(sock);
      neigh = nl_cli_neigh_alloc();
 
      for (;;) {
            int c, optidx = 0;
            enum {
                  ARG_UPDATE_ONLY = 257,
                  ARG_CREATE_ONLY = 258,
                  ARG_STATE,
            };
            static struct option long_opts[] = {
                  { "update-only", 0, 0, ARG_UPDATE_ONLY },
                  { "create-only", 0, 0, ARG_CREATE_ONLY },
                  { "quiet", 0, 0, 'q' },
                  { "help", 0, 0, 'h' },
                  { "version", 0, 0, 'v' },
                  { "addr", 1, 0, 'a' },
                  { "lladdr", 1, 0, 'l' },
                  { "dev", 1, 0, 'd' },
                  { "state", 1, 0, ARG_STATE },
                  { 0, 0, 0, 0 }
            };
      
            c = getopt_long(argc, argv, "qhva:l:d:", long_opts, &optidx);
            if (c == -1)
                  break;

            switch (c) {
            case ARG_UPDATE_ONLY: nlflags &= ~NLM_F_CREATE; break;
            case ARG_CREATE_ONLY: nlflags |= NLM_F_EXCL; break;
            case 'q': quiet = 1; break;
            case 'h': print_usage(); break;
            case 'v': nl_cli_print_version(); break;
            case 'a': ok++; nl_cli_neigh_parse_dst(neigh, optarg); break;
            case 'l': nl_cli_neigh_parse_lladdr(neigh, optarg); break;
            case 'd': nl_cli_neigh_parse_dev(neigh, link_cache, optarg); break;
            case ARG_STATE: nl_cli_neigh_parse_state(neigh, optarg); break;
            }
      }

      if (!ok)
            print_usage();

      if ((err = rtnl_neigh_add(sock, neigh, nlflags)) < 0)
            nl_cli_fatal(err, "Unable to add neighbour: %s",
                       nl_geterror(err));

      if (!quiet) {
            printf("Added ");
            nl_object_dump(OBJ_CAST(neigh), &dp);
      }

      return 0;
}

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