libnl: /data/src/libnl3/src/genl-ctrl-list.c Source File

libnl 3.10.0

genl-ctrl-list.c
1/* SPDX-License-Identifier: LGPL-2.1-only */
2/*
3 * Copyright (c) 2003-2012 Thomas Graf <tgraf@suug.ch>
4 */
5
6#include "nl-default.h"
7
8#include <linux/genetlink.h>
9
10#include <netlink/cli/utils.h>
11
12static struct nl_cache *alloc_genl_family_cache(struct nl_sock *sk)
13{
14 return nl_cli_alloc_cache(sk, "generic netlink family",
15 genl_ctrl_alloc_cache);
16}
17
18static void print_usage(void)
19{
20 printf(
21 "Usage: genl-ctrl-list [--details]\n"
22 "\n"
23 "Options\n"
24 " -d, --details Include detailed information in the list\n"
25 " -h, --help Show this help\n"
26 " -v, --version Show versioning information\n"
27 );
28 exit(0);
29}
30
31int main(int argc, char *argv[])
32{
33 struct nl_sock *sock;
34 struct nl_cache *family_cache;
35 struct nl_dump_params params = {
36 .dp_type = NL_DUMP_LINE,
37 .dp_fd = stdout,
38 };
39
40 sock = nl_cli_alloc_socket();
41 nl_cli_connect(sock, NETLINK_GENERIC);
42 family_cache = alloc_genl_family_cache(sock);
43
44 for (;;) {
45 int c, optidx = 0;
46 static struct option long_opts[] = {
47 { "details", 0, 0, 'd' },
48 { "format", 1, 0, 'f' },
49 { "help", 0, 0, 'h' },
50 { "version", 0, 0, 'v' },
51 { 0, 0, 0, 0 }
52 };
53
54 c = getopt_long(argc, argv, "df:hv", long_opts, &optidx);
55 if (c == -1)
56 break;
57
58 switch (c) {
59 case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
60 case 'd': params.dp_type = NL_DUMP_DETAILS; break;
61 case 'h': print_usage(); break;
62 case 'v': nl_cli_print_version(); break;
63 }
64 }
65
66 nl_cache_dump(family_cache, &params);
67
68 return 0;
69}
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
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:332
NL_DUMP_LINE
@ NL_DUMP_LINE
Dump object briefly on one line.
Definition types.h:20
NL_DUMP_DETAILS
@ NL_DUMP_DETAILS
Dump all attributes but no statistics.
Definition types.h:21
nl_dump_params
Dumping parameters.
Definition types.h:32
nl_dump_params::dp_type
enum nl_dump_type dp_type
Specifies the type of dump that is requested.
Definition types.h:36