src/nl-route-list.c

   1 /*
   2  * src/nl-route-list.c     List route attributes
   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/route.h>
  14 #include <netlink/cli/link.h>
  15
  16 static void print_usage(void)
  17 {
  18         printf(
  19         "Usage: nl-route-list [OPTION]... [ROUTE]\n"
  20         "\n"
  21         "Options\n"
  22         " -c, --cache           List the contents of the route cache\n"
  23         " -f, --format=TYPE     Output format { brief | details | stats }\n"
  24         " -h, --help            Show this help\n"
  25         " -v, --version         Show versioning information\n"
  26         "\n"
  27         "Route Options\n"
  28         " -d, --dst=ADDR        destination prefix, e.g. 10.10.0.0/16\n"
  29         " -n, --nexthop=NH      nexthop configuration:\n"
  30         "                         dev=DEV         route via device\n"
  31         "                         weight=WEIGHT   weight of nexthop\n"
  32         "                         flags=FLAGS\n"
  33         "                         via=GATEWAY     route via other node\n"
  34         "                         realms=REALMS\n"
  35         "                         e.g. dev=eth0,via=192.168.1.12\n"
  36         " -t, --table=TABLE     Routing table\n"
  37         "     --family=FAMILY   Address family\n"
  38         "     --src=ADDR        Source prefix\n"
  39         "     --iif=DEV         Incomming interface\n"
  40         "     --pref-src=ADDR   Preferred source address\n"
  41         "     --metrics=OPTS    Metrics configurations\n"
  42         "     --priority=NUM    Priotity\n"
  43         "     --scope=SCOPE     Scope\n"
  44         "     --protocol=PROTO  Protocol\n"
  45         "     --type=TYPE       { unicast | local | broadcast | multicast }\n"
  46         );
  47         exit(0);
  48 }
  49
  50 int main(int argc, char *argv[])
  51 {
  52         struct nl_sock *sock;
  53         struct nl_cache *link_cache, *route_cache;
  54         struct rtnl_route *route;
  55         struct nl_dump_params params = {
  56                 .dp_fd = stdout,
  57                 .dp_type = NL_DUMP_LINE,
  58         };
  59         int print_cache = 0;
  60
  61         sock = nl_cli_alloc_socket();
  62         nl_cli_connect(sock, NETLINK_ROUTE);
  63         link_cache = nl_cli_link_alloc_cache(sock);
  64         route = nl_cli_route_alloc();
  65
  66         for (;;) {
  67                 int c, optidx = 0;
  68                 enum {
  69                         ARG_FAMILY = 257,
  70                         ARG_SRC = 258,
  71                         ARG_IIF,
  72                         ARG_PREF_SRC,
  73                         ARG_METRICS,
  74                         ARG_PRIORITY,
  75                         ARG_SCOPE,
  76                         ARG_PROTOCOL,
  77                         ARG_TYPE,
  78                 };
  79                 static struct option long_opts[] = {
  80                         { "cache", 0, 0, 'c' },
  81                         { "format", 1, 0, 'f' },
  82                         { "help", 0, 0, 'h' },
  83                         { "version", 0, 0, 'v' },
  84                         { "dst", 1, 0, 'd' },
  85                         { "nexthop", 1, 0, 'n' },
  86                         { "table", 1, 0, 't' },
  87                         { "family", 1, 0, ARG_FAMILY },
  88                         { "src", 1, 0, ARG_SRC },
  89                         { "iif", 1, 0, ARG_IIF },
  90                         { "pref-src", 1, 0, ARG_PREF_SRC },
  91                         { "metrics", 1, 0, ARG_METRICS },
  92                         { "priority", 1, 0, ARG_PRIORITY },
  93                         { "scope", 1, 0, ARG_SCOPE },
  94                         { "protocol", 1, 0, ARG_PROTOCOL },
  95                         { "type", 1, 0, ARG_TYPE },
  96                         { 0, 0, 0, 0 }
  97                 };
  98
  99                 c = getopt_long(argc, argv, "cf:hvd:n:t:", long_opts, &optidx);
 100                 if (c == -1)
 101                         break;
 102
 103                 switch (c) {
 104                 case 'c': print_cache = 1; break;
 105                 case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
 106                 case 'h': print_usage(); break;
 107                 case 'v': nl_cli_print_version(); break;
 108                 case 'd': nl_cli_route_parse_dst(route, optarg); break;
 109                 case 'n': nl_cli_route_parse_nexthop(route, optarg, link_cache); break;
 110                 case 't': nl_cli_route_parse_table(route, optarg); break;
 111                 case ARG_FAMILY: nl_cli_route_parse_family(route, optarg); break;
 112                 case ARG_SRC: nl_cli_route_parse_src(route, optarg); break;
 113                 case ARG_IIF: nl_cli_route_parse_iif(route, optarg, link_cache); break;
 114                 case ARG_PREF_SRC: nl_cli_route_parse_pref_src(route, optarg); break;
 115                 case ARG_METRICS: nl_cli_route_parse_metric(route, optarg); break;
 116                 case ARG_PRIORITY: nl_cli_route_parse_prio(route, optarg); break;
 117                 case ARG_SCOPE: nl_cli_route_parse_scope(route, optarg); break;
 118                 case ARG_PROTOCOL: nl_cli_route_parse_protocol(route, optarg); break;
 119                 case ARG_TYPE: nl_cli_route_parse_type(route, optarg); break;
 120                 }
 121         }
 122
 123         route_cache = nl_cli_route_alloc_cache(sock,
 124                                 print_cache ? ROUTE_CACHE_CONTENT : 0);
 125
 126         nl_cache_dump_filter(route_cache, &params, OBJ_CAST(route));
 127
 128         return 0;
 129 }