1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
4 */
5
6/*\
7 * [Description]
8 *
9 * Test if key watch removal is correctly recognized by watch queue.
10 */
11
12#define _GNU_SOURCE
13
14#include "tst_test.h"
15#include "lapi/keyctl.h"
16#include "common.h"
17
18static void saw_watch_removal(struct watch_notification *n,
19			      LTP_ATTRIBUTE_UNUSED size_t len,
20			      unsigned int wtype)
21{
22	if (wtype != WATCH_TYPE_META)
23		return;
24
25	if (n->subtype == WATCH_META_REMOVAL_NOTIFICATION)
26		tst_res(TPASS, "Meta removal notification received");
27	else
28		tst_res(TFAIL, "Event not recognized");
29}
30
31static void run(void)
32{
33	int fd;
34	key_serial_t key;
35
36	fd = wqueue_watch(256, &wqueue_filter);
37	key = wqueue_add_key(fd);
38
39	/* if watch_id = -1 key is removed from the watch queue */
40	keyctl(KEYCTL_WATCH_KEY, key, fd, -1);
41	wqueue_consumer(fd, saw_watch_removal);
42
43	SAFE_CLOSE(fd);
44}
45
46static struct tst_test test = {
47	.test_all = run,
48};
49