1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2021 SUSE LLC Andrea Cervesato <[email protected]>
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
saw_watch_removal(struct watch_notification * n,LTP_ATTRIBUTE_UNUSED size_t len,unsigned int wtype)18 static 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
run(void)31 static 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
46 static struct tst_test test = {
47 .test_all = run,
48 };
49