1 /* $NetBSD: h_inotify_directory.c,v 1.1 2023/08/19 22:56:44 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2023 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Theodore Preduta.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: h_inotify_directory.c,v 1.1 2023/08/19 22:56:44 christos Exp $");
33
34 #include "h_linux.h"
35
36 #include <sys/null.h>
37
38 #include <compat/linux/linux_syscall.h>
39 #include <compat/linux/common/linux_inotify.h>
40
41 #define INOTIFY_ALL_DIRECTORY (LINUX_IN_ATTRIB|LINUX_IN_CREATE \
42 |LINUX_IN_MOVE_SELF|LINUX_IN_MOVED_FROM \
43 |LINUX_IN_MOVED_TO|LINUX_IN_DELETE \
44 |LINUX_IN_DELETE_SELF)
45
46 char buf[8192];
47
48 struct {
49 uint32_t mask;
50 bool cookie;
51 char name[16];
52 } target_events[] = {
53 { .mask = LINUX_IN_CREATE, .cookie = 0, .name = "test", },
54 { .mask = LINUX_IN_MOVED_FROM, .cookie = 1, .name = "test", },
55 { .mask = LINUX_IN_MOVED_TO, .cookie = 1, .name = "test2", },
56 { .mask = LINUX_IN_DELETE, .cookie = 0, .name = "test2", },
57 { .mask = LINUX_IN_MOVE_SELF, .cookie = 0, .name = "", },
58 { .mask = LINUX_IN_DELETE_SELF, .cookie = 0, .name = "", },
59 { .mask = LINUX_IN_IGNORED, .cookie = 0, .name = "", },
60 };
61
62 void
_start(void)63 _start(void)
64 {
65 int fd, wd, targetfd;
66 char *cur_buf;
67 struct linux_inotify_event *cur_ie;
68
69 RS(mkdir("test", 0644));
70
71 RS(fd = syscall(LINUX_SYS_inotify_init));
72 RS(wd = syscall(LINUX_SYS_inotify_add_watch, fd, (register_t)"test",
73 INOTIFY_ALL_DIRECTORY));
74
75 /* Create some events. */
76 RS(targetfd = open("test/test", LINUX_O_RDWR|LINUX_O_CREAT, 0644));
77 RS(write(targetfd, &targetfd, sizeof(targetfd)));
78 RS(close(targetfd));
79 RS(rename("test/test", "test/test2"));
80 RS(unlink("test/test2"));
81 RS(rename("test", "test2"));
82 RS(rmdir("test2"));
83
84 /* Check the events. */
85 RS(read(fd, buf, sizeof(buf)));
86 cur_buf = buf;
87 for (size_t i = 0; i < __arraycount(target_events); i++) {
88 cur_ie = (struct linux_inotify_event *)cur_buf;
89
90 REQUIRE(cur_ie->wd == wd);
91 REQUIRE(cur_ie->mask == target_events[i].mask);
92
93 if (target_events[i].cookie)
94 REQUIRE(cur_ie->cookie != 0);
95 else
96 REQUIRE(cur_ie->cookie == 0);
97
98 if (target_events[i].name[0] != '\0') {
99 REQUIRE(cur_ie->len > strlen(target_events[i].name));
100 REQUIRE(strcmp(cur_ie->name, target_events[i].name) == 0);
101 } else
102 REQUIRE(cur_ie->len == 0);
103
104 cur_buf += sizeof(struct linux_inotify_event) + cur_ie->len;
105 }
106
107 exit(0);
108 }
109