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nl-route-add.c

/*
 * src/nl-route-add.c     Route addition utility
 *
 *    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/route.h>
#include <netlink/cli/link.h>

static int quiet = 0;
static struct nl_cache *link_cache, *route_cache;

static void print_usage(void)
{
      printf(
      "Usage: nl-route-add [OPTION]... [ROUTE]\n"
      "\n"
      "Options\n"
      " -q, --quiet           Do not print informal notifications\n"
      " -h, --help            Show this help\n"
      " -v, --version         Show versioning information\n"
      "\n"
      "Route Options\n"
      " -d, --dst=ADDR        destination prefix, e.g. 10.10.0.0/16\n"
      " -n, --nexthop=NH      nexthop configuration:\n"
      "                         dev=DEV         route via device\n"
      "                         weight=WEIGHT   weight of nexthop\n"
      "                         flags=FLAGS\n"
      "                         via=GATEWAY     route via other node\n"
      "                         realms=REALMS\n"
      "                         e.g. dev=eth0,via=192.168.1.12\n"
      " -t, --table=TABLE     Routing table\n"
      "     --family=FAMILY   Address family\n"
      "     --src=ADDR        Source prefix\n"
      "     --iif=DEV         Incomming interface\n"
      "     --pref-src=ADDR   Preferred source address\n"
      "     --metrics=OPTS    Metrics configurations\n"
      "     --priority=NUM    Priotity\n"
      "     --scope=SCOPE     Scope\n"
      "     --protocol=PROTO  Protocol\n"
      "     --type=TYPE       { unicast | local | broadcast | multicast }\n"
      );
      exit(0);
}

int main(int argc, char *argv[])
{
      struct nl_sock *sock;
      struct rtnl_route *route;
      struct nl_dump_params dp = {
            .dp_type = NL_DUMP_LINE,
            .dp_fd = stdout,
      };
      int err = 1;

      sock = nl_cli_alloc_socket();
      nl_cli_connect(sock, NETLINK_ROUTE);
      link_cache = nl_cli_link_alloc_cache(sock);
      route_cache = nl_cli_route_alloc_cache(sock, 0);
      route = nl_cli_route_alloc();

      for (;;) {
            int c, optidx = 0;
            enum {
                  ARG_FAMILY = 257,
                  ARG_SRC = 258,
                  ARG_IIF,
                  ARG_PREF_SRC,
                  ARG_METRICS,
                  ARG_PRIORITY,
                  ARG_SCOPE,
                  ARG_PROTOCOL,
                  ARG_TYPE,
            };
            static struct option long_opts[] = {
                  { "quiet", 0, 0, 'q' },
                  { "help", 0, 0, 'h' },
                  { "version", 0, 0, 'v' },
                  { "dst", 1, 0, 'd' },
                  { "nexthop", 1, 0, 'n' },
                  { "table", 1, 0, 't' },
                  { "family", 1, 0, ARG_FAMILY },
                  { "src", 1, 0, ARG_SRC },
                  { "iif", 1, 0, ARG_IIF },
                  { "pref-src", 1, 0, ARG_PREF_SRC },
                  { "metrics", 1, 0, ARG_METRICS },
                  { "priority", 1, 0, ARG_PRIORITY },
                  { "scope", 1, 0, ARG_SCOPE },
                  { "protocol", 1, 0, ARG_PROTOCOL },
                  { "type", 1, 0, ARG_TYPE },
                  { 0, 0, 0, 0 }
            };

            c = getopt_long(argc, argv, "qhvd:n:t:", long_opts, &optidx);
            if (c == -1)
                  break;

            switch (c) {
            case 'q': quiet = 1; break;
            case 'h': print_usage(); break;
            case 'v': nl_cli_print_version(); break;
            case 'd': nl_cli_route_parse_dst(route, optarg); break;
            case 'n': nl_cli_route_parse_nexthop(route, optarg, link_cache); break;
            case 't': nl_cli_route_parse_table(route, optarg); break;
            case ARG_FAMILY: nl_cli_route_parse_family(route, optarg); break;
            case ARG_SRC: nl_cli_route_parse_src(route, optarg); break;
            case ARG_IIF: nl_cli_route_parse_iif(route, optarg, link_cache); break;
            case ARG_PREF_SRC: nl_cli_route_parse_pref_src(route, optarg); break;
            case ARG_METRICS: nl_cli_route_parse_metric(route, optarg); break;
            case ARG_PRIORITY: nl_cli_route_parse_prio(route, optarg); break;
            case ARG_SCOPE: nl_cli_route_parse_scope(route, optarg); break;
            case ARG_PROTOCOL: nl_cli_route_parse_protocol(route, optarg); break;
            case ARG_TYPE: nl_cli_route_parse_type(route, optarg); break;
            }
      }

      if ((err = rtnl_route_add(sock, route, 0)) < 0)
            nl_cli_fatal(err, "Unable to add route: %s", nl_geterror(err));

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

      return 0;
}

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