1/*
2 * src/nl-neigh-delete.c     Delete a neighbour
3 *
4 *	This library is free software; you can redistribute it and/or
5 *	modify it under the terms of the GNU Lesser General Public
6 *	License as published by the Free Software Foundation version 2.1
7 *	of the License.
8 *
9 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
10 */
11
12#include <netlink/cli/utils.h>
13#include <netlink/cli/neigh.h>
14#include <netlink/cli/link.h>
15
16static int quiet = 0, default_yes = 0, deleted = 0, interactive = 0;
17struct nl_sock *sock;
18
19static void print_usage(void)
20{
21	printf(
22	"Usage: nl-neigh-delete [OPTION]... [NEIGHBOUR]\n"
23	"\n"
24	"Options\n"
25	" -i, --interactive     Run interactively\n"
26	"     --yes             Set default answer to yes\n"
27	" -q, --quiet           Do not print informal notifications\n"
28	" -h, --help            Show this help\n"
29	" -v, --version         Show versioning information\n"
30	"\n"
31	"Neighbour Options\n"
32	" -a, --addr=ADDR       Destination address of neighbour\n"
33	" -l, --lladdr=ADDR     Link layer address of neighbour\n"
34	" -d, --dev=DEV         Device the neighbour is connected to\n"
35	"     --family=FAMILY   Destination address family\n"
36	"     --state=STATE     Neighbour state, (default = permanent)\n"
37	);
38
39	exit(0);
40}
41
42static void delete_cb(struct nl_object *obj, void *arg)
43{
44	struct rtnl_neigh *neigh = nl_object_priv(obj);
45	struct nl_dump_params params = {
46		.dp_type = NL_DUMP_LINE,
47		.dp_fd = stdout,
48	};
49	int err;
50
51	if (interactive && !nl_cli_confirm(obj, &params, default_yes))
52		return;
53
54	if ((err = rtnl_neigh_delete(sock, neigh, 0)) < 0)
55		nl_cli_fatal(err, "Unable to delete neighbour: %s\n",
56			     nl_geterror(err));
57
58	if (!quiet) {
59		printf("Deleted ");
60		nl_object_dump(obj, &params);
61	}
62
63	deleted++;
64}
65
66int main(int argc, char *argv[])
67{
68	struct rtnl_neigh *neigh;
69	struct nl_cache *link_cache, *neigh_cache;
70
71	sock = nl_cli_alloc_socket();
72	nl_cli_connect(sock, NETLINK_ROUTE);
73	link_cache = nl_cli_link_alloc_cache(sock);
74	neigh_cache = nl_cli_neigh_alloc_cache(sock);
75 	neigh = nl_cli_neigh_alloc();
76
77	for (;;) {
78		int c, optidx = 0;
79		enum {
80			ARG_FAMILY = 257,
81			ARG_STATE = 258,
82			ARG_YES,
83		};
84		static struct option long_opts[] = {
85			{ "interactive", 0, 0, 'i' },
86			{ "yes", 0, 0, ARG_YES },
87			{ "quiet", 0, 0, 'q' },
88			{ "help", 0, 0, 'h' },
89			{ "version", 0, 0, 'v' },
90			{ "addr", 1, 0, 'a' },
91			{ "lladdr", 1, 0, 'l' },
92			{ "dev", 1, 0, 'd' },
93			{ "family", 1, 0, ARG_FAMILY },
94			{ "state", 1, 0, ARG_STATE },
95			{ 0, 0, 0, 0 }
96		};
97
98		c = getopt_long(argc, argv, "qhva:l:d:", long_opts, &optidx);
99		if (c == -1)
100			break;
101
102		switch (c) {
103		case 'i': interactive = 1; break;
104		case ARG_YES: default_yes = 1; break;
105		case 'q': quiet = 1; break;
106		case 'h': print_usage(); break;
107		case 'v': nl_cli_print_version(); break;
108		case 'a': nl_cli_neigh_parse_dst(neigh, optarg); break;
109		case 'l': nl_cli_neigh_parse_lladdr(neigh, optarg); break;
110		case 'd': nl_cli_neigh_parse_dev(neigh, link_cache, optarg); break;
111		case ARG_FAMILY: nl_cli_neigh_parse_family(neigh, optarg); break;
112		case ARG_STATE: nl_cli_neigh_parse_state(neigh, optarg); break;
113		}
114 	}
115
116	nl_cache_foreach_filter(neigh_cache, OBJ_CAST(neigh), delete_cb, NULL);
117
118	if (!quiet)
119		printf("Deleted %d neighbours\n", deleted);
120
121	return 0;
122}
123