libnl  3.6.0
nl-neightbl-list.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
4  */
5 
6 #include <netlink/cli/utils.h>
7 #include <netlink/cli/link.h>
8 
9 #include <linux/netlink.h>
10 
11 static void print_usage(void)
12 {
13  printf(
14  "Usage: nl-neightbl-list [OPTION]...\n"
15  "\n"
16  "Options\n"
17  " -f, --format=TYPE Output format { brief | details | stats }\n"
18  " -h, --help Show this help\n"
19  " -v, --version Show versioning information\n"
20  );
21  exit(0);
22 }
23 
24 int main(int argc, char *argv[])
25 {
26  struct nl_sock *sock;
27  struct nl_cache *neightbl_cache;
28  struct nl_dump_params params = {
30  .dp_fd = stdout,
31  };
32 
33  sock = nl_cli_alloc_socket();
34  nl_cli_connect(sock, NETLINK_ROUTE);
35  nl_cli_link_alloc_cache(sock);
36  neightbl_cache = nl_cli_alloc_cache(sock, "neighbour table",
38 
39  for (;;) {
40  int c, optidx = 0;
41  static struct option long_opts[] = {
42  { "format", 1, 0, 'f' },
43  { "help", 0, 0, 'h' },
44  { "version", 0, 0, 'v' },
45  { 0, 0, 0, 0 }
46  };
47 
48  c = getopt_long(argc, argv, "f:hv", long_opts, &optidx);
49  if (c == -1)
50  break;
51 
52  switch (c) {
53  case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
54  case 'h': print_usage(); break;
55  case 'v': nl_cli_print_version(); break;
56  }
57  }
58 
59  nl_cache_dump(neightbl_cache, &params);
60 
61  return 0;
62 }
void nl_cache_dump(struct nl_cache *cache, struct nl_dump_params *params)
Dump all elements of a cache.
Definition: cache.c:1197
int rtnl_neightbl_alloc_cache(struct nl_sock *sk, struct nl_cache **result)
Build a neighbour table cache including all neighbour tables currently configured in the kernel.
Definition: neightbl.c:394
@ NL_DUMP_LINE
Dump object briefly on one line.
Definition: types.h:16
Dumping parameters.
Definition: types.h:28
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:32