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@suug.ch>
10 */
11
12 #include <netlink/cli/utils.h>
13
print_usage(void)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
main(int argc,char * argv[])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