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      1 /*	$NetBSD: h_inotify_single_file.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_single_file.c,v 1.1 2023/08/19 22:56:44 christos Exp $");
     33 
     34 #include "h_linux.h"
     35 
     36 #include <compat/linux/linux_syscall.h>
     37 #include <compat/linux/common/linux_inotify.h>
     38 
     39 #define	INOTIFY_ALL_FILE	(LINUX_IN_ATTRIB|LINUX_IN_CLOSE_NOWRITE \
     40 				|LINUX_IN_OPEN|LINUX_IN_MOVE_SELF \
     41 				|LINUX_IN_ACCESS|LINUX_IN_CLOSE_WRITE \
     42 				|LINUX_IN_MODIFY|LINUX_IN_DELETE_SELF)
     43 
     44 struct linux_inotify_event events[10];
     45 
     46 void
     47 _start(void)
     48 {
     49 	int fd, wd, targetfd, buf;
     50 
     51 	RS(targetfd = open("test", LINUX_O_RDWR|LINUX_O_CREAT, 0644));
     52 	RS(close(targetfd));
     53 
     54 	RS(fd = syscall(LINUX_SYS_inotify_init));
     55 	RS(wd = syscall(LINUX_SYS_inotify_add_watch, fd, (register_t)"test",
     56 	    INOTIFY_ALL_FILE));
     57 
     58 	/* Create some events. */
     59 	RS(targetfd = open("test", LINUX_O_RDWR|LINUX_O_CREAT, 0644));
     60 	RS(write(targetfd, &buf, sizeof(buf)));
     61 	RS(read(targetfd, &buf, sizeof(buf)));
     62 	RS(close(targetfd));
     63 	RS(targetfd = open("test", LINUX_O_RDONLY|LINUX_O_CREAT, 0644));
     64 	RS(close(targetfd));
     65 	RS(rename("test", "test2"));
     66 	RS(unlink("test2"));
     67 
     68 	/* Get and check the events. */
     69 	RS(read(fd, events, sizeof(events)));
     70 
     71 	for (size_t i = 0; i < __arraycount(events); i++)
     72 		REQUIRE(events[i].wd == wd && events[i].cookie == 0
     73 		    && events[i].len == 0);
     74 
     75 	REQUIRE(events[0].mask == LINUX_IN_OPEN);
     76 	REQUIRE(events[1].mask == LINUX_IN_MODIFY);
     77 	REQUIRE(events[2].mask == LINUX_IN_ACCESS);
     78 	REQUIRE(events[3].mask == LINUX_IN_CLOSE_WRITE);
     79 	REQUIRE(events[4].mask == LINUX_IN_OPEN);
     80 	REQUIRE(events[5].mask == LINUX_IN_CLOSE_NOWRITE);
     81 	REQUIRE(events[6].mask == LINUX_IN_MOVE_SELF);
     82 	REQUIRE(events[7].mask == LINUX_IN_ATTRIB);
     83 	REQUIRE(events[8].mask == LINUX_IN_DELETE_SELF);
     84 	REQUIRE(events[9].mask == LINUX_IN_IGNORED);
     85 
     86 	exit(0);
     87 }
     88