/* SPDX-License-Identifier: LGPL-2.1-only */

/*

 * src/nl-link-dump.c	Dump link attributes

 *

 *	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) 2003-2010 Thomas Graf <tgraf@suug.ch>

 */

#include <netlink/cli/utils.h>

#include <netlink/cli/link.h>

#include <linux/netlink.h>

static void print_usage(void)

{

	printf(

"Usage: nl-link-list [OPTIONS]... \n"

"\n"

"OPTIONS\n"

"     --details             Show detailed information of each link\n"

"     --stats               Show statistics, implies --details\n"

" -h, --help                Show this help text.\n"

" -v, --version             Show versioning information.\n"

"\n"

" -n, --name=NAME	    Name of link\n"

" -i, --index               Interface index (unique identifier)\n"

"     --family=NAME         Link address family\n"

"     --mtu=NUM             MTU value\n"

"     --txqlen=NUM          TX queue length\n"

"     --weight=NUM          Weight\n"

	);

	exit(0);

}

int main(int argc, char *argv[])

{

	struct nl_sock *sock;

	struct nl_cache *link_cache;

	struct rtnl_link *link;

	struct nl_dump_params params = {

		.dp_type = NL_DUMP_LINE,

		.dp_fd = stdout,

	};

	sock = nl_cli_alloc_socket();

	nl_cli_connect(sock, NETLINK_ROUTE);

	link = nl_cli_link_alloc();

	for (;;) {

		int c, optidx = 0;

		enum {

			ARG_FAMILY = 257,

			ARG_MTU = 258,

			ARG_TXQLEN,

			ARG_WEIGHT,

			ARG_DETAILS,

			ARG_STATS,

		};

		static struct option long_opts[] = {

			{ "details", 0, 0, ARG_DETAILS },

			{ "stats", 0, 0, ARG_STATS },

			{ "help", 0, 0, 'h' },

			{ "version", 0, 0, 'v' },

			{ "name", 1, 0, 'n' },

			{ "index", 1, 0, 'i' },

			{ "family", 1, 0, ARG_FAMILY },

			{ "mtu", 1, 0, ARG_MTU },

			{ "txqlen", 1, 0, ARG_TXQLEN },

			{ "weight", 1, 0, ARG_WEIGHT },

			{ 0, 0, 0, 0 }

		};

		c = getopt_long(argc, argv, "hvn:i:", long_opts, &optidx);

		if (c == -1)

			break;

		switch (c) {

		case ARG_DETAILS: params.dp_type = NL_DUMP_DETAILS; break;

		case ARG_STATS: params.dp_type = NL_DUMP_STATS; break;

		case 'h': print_usage(); break;

		case 'v': nl_cli_print_version(); break;

		case 'n': nl_cli_link_parse_name(link, optarg); break;

		case 'i': nl_cli_link_parse_ifindex(link, optarg); break;

		case ARG_FAMILY: nl_cli_link_parse_family(link, optarg); break;

		case ARG_MTU: nl_cli_link_parse_mtu(link, optarg); break;

		case ARG_TXQLEN: nl_cli_link_parse_txqlen(link, optarg); break;

		case ARG_WEIGHT: nl_cli_link_parse_weight(link, optarg); break;

		}

	}

	link_cache = nl_cli_link_alloc_cache_family(sock,

				rtnl_link_get_family(link));

	nl_cache_dump_filter(link_cache, &params, OBJ_CAST(link));

	return 0;

}