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      1 /*
      2  * src/nl-route-add.c     Route addition utility
      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 (at) 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 int quiet = 0;
     17 static struct nl_cache *link_cache, *route_cache;
     18 
     19 static void print_usage(void)
     20 {
     21 	printf(
     22 	"Usage: nl-route-add [OPTION]... [ROUTE]\n"
     23 	"\n"
     24 	"Options\n"
     25 	" -q, --quiet		Do not print informal notifications\n"
     26 	" -h, --help            Show this help\n"
     27 	" -v, --version		Show versioning information\n"
     28 	"\n"
     29 	"Route Options\n"
     30 	" -d, --dst=ADDR        destination prefix, e.g. 10.10.0.0/16\n"
     31 	" -n, --nexthop=NH      nexthop configuration:\n"
     32 	"                         dev=DEV         route via device\n"
     33 	"                         weight=WEIGHT   weight of nexthop\n"
     34 	"                         flags=FLAGS\n"
     35 	"                         via=GATEWAY     route via other node\n"
     36 	"                         realms=REALMS\n"
     37 	"                         e.g. dev=eth0,via=192.168.1.12\n"
     38 	" -t, --table=TABLE     Routing table\n"
     39 	"     --family=FAMILY	Address family\n"
     40 	"     --src=ADDR        Source prefix\n"
     41 	"     --iif=DEV         Incomming interface\n"
     42 	"     --pref-src=ADDR   Preferred source address\n"
     43 	"     --metrics=OPTS    Metrics configurations\n"
     44 	"     --priority=NUM    Priotity\n"
     45 	"     --scope=SCOPE     Scope\n"
     46 	"     --protocol=PROTO  Protocol\n"
     47 	"     --type=TYPE       { unicast | local | broadcast | multicast }\n"
     48 	);
     49 	exit(0);
     50 }
     51 
     52 int main(int argc, char *argv[])
     53 {
     54 	struct nl_sock *sock;
     55 	struct rtnl_route *route;
     56 	struct nl_dump_params dp = {
     57 		.dp_type = NL_DUMP_LINE,
     58 		.dp_fd = stdout,
     59 	};
     60 	int err = 1;
     61 
     62 	sock = nl_cli_alloc_socket();
     63 	nl_cli_connect(sock, NETLINK_ROUTE);
     64 	link_cache = nl_cli_link_alloc_cache(sock);
     65 	route_cache = nl_cli_route_alloc_cache(sock, 0);
     66 	route = nl_cli_route_alloc();
     67 
     68 	for (;;) {
     69 		int c, optidx = 0;
     70 		enum {
     71 			ARG_FAMILY = 257,
     72 			ARG_SRC = 258,
     73 			ARG_IIF,
     74 			ARG_PREF_SRC,
     75 			ARG_METRICS,
     76 			ARG_PRIORITY,
     77 			ARG_SCOPE,
     78 			ARG_PROTOCOL,
     79 			ARG_TYPE,
     80 		};
     81 		static struct option long_opts[] = {
     82 			{ "quiet", 0, 0, 'q' },
     83 			{ "help", 0, 0, 'h' },
     84 			{ "version", 0, 0, 'v' },
     85 			{ "dst", 1, 0, 'd' },
     86 			{ "nexthop", 1, 0, 'n' },
     87 			{ "table", 1, 0, 't' },
     88 			{ "family", 1, 0, ARG_FAMILY },
     89 			{ "src", 1, 0, ARG_SRC },
     90 			{ "iif", 1, 0, ARG_IIF },
     91 			{ "pref-src", 1, 0, ARG_PREF_SRC },
     92 			{ "metrics", 1, 0, ARG_METRICS },
     93 			{ "priority", 1, 0, ARG_PRIORITY },
     94 			{ "scope", 1, 0, ARG_SCOPE },
     95 			{ "protocol", 1, 0, ARG_PROTOCOL },
     96 			{ "type", 1, 0, ARG_TYPE },
     97 			{ 0, 0, 0, 0 }
     98 		};
     99 
    100 		c = getopt_long(argc, argv, "qhvd:n:t:", long_opts, &optidx);
    101 		if (c == -1)
    102 			break;
    103 
    104 		switch (c) {
    105 		case 'q': quiet = 1; 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 	if ((err = rtnl_route_add(sock, route, NLM_F_EXCL)) < 0)
    124 		nl_cli_fatal(err, "Unable to add route: %s", nl_geterror(err));
    125 
    126 	if (!quiet) {
    127 		printf("Added ");
    128 		nl_object_dump(OBJ_CAST(route), &dp);
    129 	}
    130 
    131 	return 0;
    132 }
    133