1 /* 2 * src/nl-fib-lookup.c FIB Route Lookup 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 14 static void print_usage(void) 15 { 16 printf( 17 "Usage: nl-fib-lookup [options] <addr>\n" 18 "Options:\n" 19 " -t, --table <table> Table id\n" 20 " -f, --fwmark <int> Firewall mark\n" 21 " -s, --scope <scope> Routing scope\n" 22 " -T, --tos <int> Type of Service\n"); 23 exit(1); 24 } 25 26 int main(int argc, char *argv[]) 27 { 28 struct nl_sock *nlh; 29 struct nl_cache *result; 30 struct flnl_request *request; 31 struct nl_addr *addr; 32 struct nl_dump_params params = { 33 .dp_fd = stdout, 34 .dp_type = NL_DUMP_DETAILS, 35 }; 36 int table = RT_TABLE_UNSPEC, scope = RT_SCOPE_UNIVERSE; 37 int tos = 0, err = 1; 38 uint64_t fwmark = 0; 39 40 while (1) { 41 static struct option long_opts[] = { 42 {"table", 1, 0, 't'}, 43 {"fwmark", 1, 0, 'f'}, 44 {"scope", 1, 0, 's'}, 45 {"tos", 1, 0, 'T'}, 46 {"help", 0, 0, 'h'}, 47 {0, 0, 0, 0}, 48 }; 49 int c, idx = 0; 50 51 c = getopt_long(argc, argv, "t:f:s:T:h", long_opts, &idx); 52 if (c == -1) 53 break; 54 55 switch (c) { 56 case 't': 57 table = strtoul(optarg, NULL, 0); 58 break; 59 case 'f': 60 fwmark = strtoul(optarg, NULL, 0); 61 break; 62 case 's': 63 scope = strtoul(optarg, NULL, 0); 64 break; 65 case 'T': 66 tos = strtoul(optarg, NULL, 0); 67 break; 68 default: 69 print_usage(); 70 } 71 } 72 73 if (optind >= argc) 74 print_usage(); 75 76 nlh = nl_cli_alloc_socket(); 77 78 if ((err = nl_addr_parse(argv[optind], AF_INET, &addr)) < 0) 79 nl_cli_fatal(err, "Unable to parse address \"%s\": %s\n", 80 argv[optind], nl_geterror(err)); 81 82 result = flnl_result_alloc_cache(); 83 if (!result) 84 nl_cli_fatal(ENOMEM, "Unable to allocate cache"); 85 86 request = flnl_request_alloc(); 87 if (!request) 88 nl_cli_fatal(ENOMEM, "Unable to allocate request"); 89 90 flnl_request_set_table(request, table); 91 flnl_request_set_fwmark(request, fwmark); 92 flnl_request_set_scope(request, scope); 93 flnl_request_set_tos(request, tos); 94 95 err = flnl_request_set_addr(request, addr); 96 nl_addr_put(addr); 97 if (err < 0) 98 nl_cli_fatal(err, "Unable to send request: %s", nl_geterror(err)); 99 100 nl_cli_connect(nlh, NETLINK_FIB_LOOKUP); 101 102 err = flnl_lookup(nlh, request, result); 103 if (err < 0) 104 nl_cli_fatal(err, "Unable to lookup: %s\n", nl_geterror(err)); 105 106 nl_cache_dump(result, ¶ms); 107 108 return 0; 109 } 110
