libnl 3.5.0

genl-ctrl-list.c
1 /* SPDX-License-Identifier: LGPL-2.1-only */
2 /*
3 * src/genl-ctrl-list.c List Generic Netlink Families
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation version 2.1
8 * of the License.
9 *
10 * Copyright (c) 2003-2012 Thomas Graf <tgraf@suug.ch>
11 */
12
13 #include <netlink/cli/utils.h>
14
15 #include <linux/genetlink.h>
16
17 static struct nl_cache *alloc_genl_family_cache(struct nl_sock *sk)
18 {
19 return nl_cli_alloc_cache(sk, "generic netlink family",
20 genl_ctrl_alloc_cache);
21 }
22
23 static void print_usage(void)
24 {
25 printf(
26 "Usage: genl-ctrl-list [--details]\n"
27 "\n"
28 "Options\n"
29 " -d, --details Include detailed information in the list\n"
30 " -h, --help Show this help\n"
31 " -v, --version Show versioning information\n"
32 );
33 exit(0);
34 }
35
36 int main(int argc, char *argv[])
37 {
38 struct nl_sock *sock;
39 struct nl_cache *family_cache;
40 struct nl_dump_params params = {
41 .dp_type = NL_DUMP_LINE,
42 .dp_fd = stdout,
43 };
44
45 sock = nl_cli_alloc_socket();
46 nl_cli_connect(sock, NETLINK_GENERIC);
47 family_cache = alloc_genl_family_cache(sock);
48
49 for (;;) {
50 int c, optidx = 0;
51 static struct option long_opts[] = {
52 { "details", 0, 0, 'd' },
53 { "format", 1, 0, 'f' },
54 { "help", 0, 0, 'h' },
55 { "version", 0, 0, 'v' },
56 { 0, 0, 0, 0 }
57 };
58
59 c = getopt_long(argc, argv, "df:hv", long_opts, &optidx);
60 if (c == -1)
61 break;
62
63 switch (c) {
64 case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
65 case 'd': params.dp_type = NL_DUMP_DETAILS; break;
66 case 'h': print_usage(); break;
67 case 'v': nl_cli_print_version(); break;
68 }
69 }
70
71 nl_cache_dump(family_cache, &params);
72
73 return 0;
74 }
NL_DUMP_LINE
Dump object briefly on one line.
Definition: types.h:22
nl_dump_params::dp_type
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition: types.h:38
genl_ctrl_alloc_cache
int genl_ctrl_alloc_cache(struct nl_sock *sk, struct nl_cache **result)
Allocate a new controller cache.
Definition: ctrl.c:334
NL_DUMP_DETAILS
Dump all attributes but no statistics.
Definition: types.h:23
nl_cache_dump
void nl_cache_dump(struct nl_cache *cache, struct nl_dump_params *params)
Dump all elements of a cache.
Definition: cache.c:1203
nl_dump_params
Dumping parameters.
Definition: types.h:33