1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
| /*
| * src/nl-fib-lookup.c FIB Route Lookup
| *
| * 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>
|
| static void print_usage(void)
| {
| printf(
| "Usage: nl-fib-lookup [options] <addr>\n"
| "Options:\n"
| " -t, --table <table> Table id\n"
| " -f, --fwmark <int> Firewall mark\n"
| " -s, --scope <scope> Routing scope\n"
| " -T, --tos <int> Type of Service\n");
| exit(1);
| }
|
| int main(int argc, char *argv[])
| {
| struct nl_sock *nlh;
| struct nl_cache *result;
| struct flnl_request *request;
| struct nl_addr *addr;
| struct nl_dump_params params = {
| .dp_fd = stdout,
| .dp_type = NL_DUMP_DETAILS,
| };
| int table = RT_TABLE_UNSPEC, scope = RT_SCOPE_UNIVERSE;
| int tos = 0, err = 1;
| uint64_t fwmark = 0;
|
| while (1) {
| static struct option long_opts[] = {
| {"table", 1, 0, 't'},
| {"fwmark", 1, 0, 'f'},
| {"scope", 1, 0, 's'},
| {"tos", 1, 0, 'T'},
| {"help", 0, 0, 'h'},
| {0, 0, 0, 0},
| };
| int c, idx = 0;
|
| c = getopt_long(argc, argv, "t:f:s:T:h", long_opts, &idx);
| if (c == -1)
| break;
|
| switch (c) {
| case 't':
| table = strtoul(optarg, NULL, 0);
| break;
| case 'f':
| fwmark = strtoul(optarg, NULL, 0);
| break;
| case 's':
| scope = strtoul(optarg, NULL, 0);
| break;
| case 'T':
| tos = strtoul(optarg, NULL, 0);
| break;
| default:
| print_usage();
| }
| }
|
| if (optind >= argc)
| print_usage();
|
| nlh = nl_cli_alloc_socket();
|
| if ((err = nl_addr_parse(argv[optind], AF_INET, &addr)) < 0)
| nl_cli_fatal(err, "Unable to parse address \"%s\": %s\n",
| argv[optind], nl_geterror(err));
|
| result = flnl_result_alloc_cache();
| if (!result)
| nl_cli_fatal(ENOMEM, "Unable to allocate cache");
|
| request = flnl_request_alloc();
| if (!request)
| nl_cli_fatal(ENOMEM, "Unable to allocate request");
|
| flnl_request_set_table(request, table);
| flnl_request_set_fwmark(request, fwmark);
| flnl_request_set_scope(request, scope);
| flnl_request_set_tos(request, tos);
|
| err = flnl_request_set_addr(request, addr);
| nl_addr_put(addr);
| if (err < 0)
| nl_cli_fatal(err, "Unable to send request: %s", nl_geterror(err));
|
| nl_cli_connect(nlh, NETLINK_FIB_LOOKUP);
|
| err = flnl_lookup(nlh, request, result);
| if (err < 0)
| nl_cli_fatal(err, "Unable to lookup: %s\n", nl_geterror(err));
|
| nl_cache_dump(result, ¶ms);
|
| return 0;
| }
|
|