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

/*

 * src/ nl-neigh-add.c     Add a neighbour

 *

 *	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) 2003-2009 Thomas Graf <tgraf@suug.ch>

 */

#include <netlink/cli/utils.h>

#include <netlink/cli/neigh.h>

#include <netlink/cli/link.h>

#include <linux/netlink.h>

static int quiet = 0;

static void print_usage(void)

{

	printf(

	"Usage: nl-neigh-add [OPTION]... NEIGHBOUR\n"

	"\n"

	"Options\n"

	"     --update-only     Do not create neighbour, updates exclusively\n"

	"     --create-only     Do not update neighbour if it exists already.\n"

	" -q, --quiet           Do not print informal notifications\n"

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

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

	"\n"

	"Neighbour Options\n"

	" -a, --addr=ADDR       Destination address of neighbour\n"

	" -l, --lladdr=ADDR     Link layer address of neighbour\n"

	" -d, --dev=DEV         Device the neighbour is connected to\n"

	"     --state=STATE     Neighbour state, (default = permanent)\n"

	"\n"

	"Example\n"

	"  nl-neigh-add --create-only --addr=10.0.0.1 --dev=eth0 \\\n"

	"               --lladdr=AA:BB:CC:DD:EE:FF\n"

	);

	exit(0);

}

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

{

	struct nl_sock *sock;

	struct rtnl_neigh *neigh;

	struct nl_cache *link_cache;

	struct nl_dump_params dp = {

		.dp_type = NL_DUMP_LINE,

		.dp_fd = stdout,

	};

	int err, ok = 0, nlflags = NLM_F_REPLACE | NLM_F_CREATE;

	sock = nl_cli_alloc_socket();

	nl_cli_connect(sock, NETLINK_ROUTE);

	link_cache = nl_cli_link_alloc_cache(sock);

	neigh = nl_cli_neigh_alloc();

	for (;;) {

		int c, optidx = 0;

		enum {

			ARG_UPDATE_ONLY = 257,

			ARG_CREATE_ONLY = 258,

			ARG_STATE,

		};

		static struct option long_opts[] = {

			{ "update-only", 0, 0, ARG_UPDATE_ONLY },

			{ "create-only", 0, 0, ARG_CREATE_ONLY },

			{ "quiet", 0, 0, 'q' },

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

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

			{ "addr", 1, 0, 'a' },

			{ "lladdr", 1, 0, 'l' },

			{ "dev", 1, 0, 'd' },

			{ "state", 1, 0, ARG_STATE },

			{ 0, 0, 0, 0 }

		};

		c = getopt_long(argc, argv, "qhva:l:d:", long_opts, &optidx);

		if (c == -1)

			break;

		switch (c) {

		case ARG_UPDATE_ONLY: nlflags &= ~NLM_F_CREATE; break;

		case ARG_CREATE_ONLY: nlflags |= NLM_F_EXCL; break;

		case 'q': quiet = 1; break;

		case 'h': print_usage(); break;

		case 'v': nl_cli_print_version(); break;

		case 'a': ok++; nl_cli_neigh_parse_dst(neigh, optarg); break;

		case 'l': nl_cli_neigh_parse_lladdr(neigh, optarg); break;

		case 'd': nl_cli_neigh_parse_dev(neigh, link_cache, optarg); break;

		case ARG_STATE: nl_cli_neigh_parse_state(neigh, optarg); break;

		}

	}

	if (!ok)

		print_usage();

	if ((err = rtnl_neigh_add(sock, neigh, nlflags)) < 0)

		nl_cli_fatal(err, "Unable to add neighbour: %s",

			     nl_geterror(err));

	if (!quiet) {

		printf("Added ");

		nl_object_dump(OBJ_CAST(neigh), &dp;;

	}

	return 0;

}