xref: /aosp_15_r20/external/libnl/src/genl-ctrl-list.c (revision 4dc78e53d49367fa8e61b07018507c90983a077d)

/* SPDX-License-Identifier: LGPL-2.1-only */
/*
 * Copyright (c) 2003-2012 Thomas Graf <[email protected]>
 */

#include "nl-default.h"

#include <linux/genetlink.h>

#include <netlink/cli/utils.h>

static struct nl_cache *alloc_genl_family_cache(struct nl_sock *sk)
{
	return nl_cli_alloc_cache(sk, "generic netlink family",
				  genl_ctrl_alloc_cache);
}

static void print_usage(void)
{
	printf(
	"Usage: genl-ctrl-list [--details]\n"
	"\n"
	"Options\n"
	" -d, --details         Include detailed information in the list\n"
	" -h, --help            Show this help\n"
	" -v, --version         Show versioning information\n"
	);
	exit(0);
}

int main(int argc, char *argv[])
{
	struct nl_sock *sock;
	struct nl_cache *family_cache;
	struct nl_dump_params params = {
		.dp_type = NL_DUMP_LINE,
		.dp_fd = stdout,
	};

	sock = nl_cli_alloc_socket();
	nl_cli_connect(sock, NETLINK_GENERIC);
	family_cache = alloc_genl_family_cache(sock);

	for (;;) {
		int c, optidx = 0;
		static struct option long_opts[] = {
			{ "details", 0, 0, 'd' },
			{ "format", 1, 0, 'f' },
			{ "help", 0, 0, 'h' },
			{ "version", 0, 0, 'v' },
			{ 0, 0, 0, 0 }
		};

		c = getopt_long(argc, argv, "df:hv", long_opts, &optidx);
		if (c == -1)
			break;

		switch (c) {
		case 'f': params.dp_type = nl_cli_parse_dumptype(optarg); break;
		case 'd': params.dp_type = NL_DUMP_DETAILS; break;
		case 'h': print_usage(); break;
		case 'v': nl_cli_print_version(); break;
		}
	}

	nl_cache_dump(family_cache, &params);

	return 0;
}