| /* |
| * Copyright (c) 2008 Parallels. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Started by Andrew Vagin <avagin@gmail.com> |
| * |
| * DESCRIPTION |
| * Check that inotify get IN_UNMOUNT event and |
| * don't block the umount command. |
| * |
| * ALGORITHM |
| * Execute sequence file's operation and check return events |
| * |
| */ |
| #include "config.h" |
| |
| #include <stdio.h> |
| #include <sys/mount.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <sys/syscall.h> |
| #include <signal.h> |
| #include "test.h" |
| #include "lapi/syscalls.h" |
| #include "inotify.h" |
| |
| char *TCID = "inotify03"; |
| int TST_TOTAL = 3; |
| |
| #if defined(HAVE_SYS_INOTIFY_H) |
| #include <sys/inotify.h> |
| |
| #define EVENT_MAX 1024 |
| /* size of the event structure, not counting name */ |
| #define EVENT_SIZE (sizeof(struct inotify_event)) |
| /* reasonable guess as to size of 1024 events */ |
| #define EVENT_BUF_LEN (EVENT_MAX * (EVENT_SIZE + 16)) |
| |
| static void setup(void); |
| static void cleanup(void); |
| |
| #define BUF_SIZE 1024 |
| static char fname[BUF_SIZE]; |
| static int fd, fd_notify; |
| static int wd; |
| |
| static int event_set[EVENT_MAX]; |
| |
| static char event_buf[EVENT_BUF_LEN]; |
| |
| #define DIR_MODE (S_IRWXU | S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP) |
| |
| static char *mntpoint = "mntpoint"; |
| static int mount_flag; |
| static const char *device; |
| static const char *fs_type; |
| |
| int main(int argc, char *argv[]) |
| { |
| int ret; |
| int len, i, test_num; |
| |
| tst_parse_opts(argc, argv, NULL, NULL); |
| |
| setup(); |
| |
| tst_count = 0; |
| |
| event_set[tst_count] = IN_UNMOUNT; |
| tst_count++; |
| event_set[tst_count] = IN_IGNORED; |
| tst_count++; |
| |
| /*check exit code from inotify_rm_watch */ |
| tst_count++; |
| |
| if (TST_TOTAL != tst_count) { |
| tst_brkm(TBROK, cleanup, |
| "TST_TOTAL and tst_count are not equal"); |
| } |
| tst_count = 0; |
| |
| tst_resm(TINFO, "umount %s", device); |
| TEST(tst_umount(mntpoint)); |
| if (TEST_RETURN != 0) { |
| tst_brkm(TBROK, cleanup, "umount(2) Failed " |
| "while unmounting errno = %d : %s", |
| TEST_ERRNO, strerror(TEST_ERRNO)); |
| } |
| mount_flag = 0; |
| |
| len = read(fd_notify, event_buf, EVENT_BUF_LEN); |
| if (len < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "read(%d, buf, %zu) failed", fd_notify, EVENT_BUF_LEN); |
| } |
| |
| /* check events */ |
| test_num = 0; |
| i = 0; |
| while (i < len) { |
| struct inotify_event *event; |
| event = (struct inotify_event *)&event_buf[i]; |
| if (test_num >= (TST_TOTAL - 1)) { |
| tst_resm(TFAIL, |
| "get unnecessary event: wd=%d mask=%x " |
| "cookie=%u len=%u", |
| event->wd, event->mask, |
| event->cookie, event->len); |
| } else if (event_set[test_num] == event->mask) { |
| tst_resm(TPASS, "get event: wd=%d mask=%x" |
| " cookie=%u len=%u", |
| event->wd, event->mask, |
| event->cookie, event->len); |
| |
| } else { |
| tst_resm(TFAIL, "get event: wd=%d mask=%x " |
| "(expected %x) cookie=%u len=%u", |
| event->wd, event->mask, |
| event_set[test_num], |
| event->cookie, event->len); |
| } |
| test_num++; |
| i += EVENT_SIZE + event->len; |
| } |
| for (; test_num < TST_TOTAL - 1; test_num++) { |
| tst_resm(TFAIL, "don't get event: mask=%x ", |
| event_set[test_num]); |
| |
| } |
| ret = myinotify_rm_watch(fd_notify, wd); |
| if (ret != -1 || errno != EINVAL) |
| tst_resm(TFAIL | TERRNO, |
| "inotify_rm_watch (%d, %d) didn't return EINVAL", |
| fd_notify, wd); |
| else |
| tst_resm(TPASS, "inotify_rm_watch (%d, %d) returned EINVAL", |
| fd_notify, wd); |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void setup(void) |
| { |
| int ret; |
| |
| tst_require_root(); |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| fs_type = tst_dev_fs_type(); |
| |
| tst_tmpdir(); |
| |
| device = tst_acquire_device(cleanup); |
| if (!device) |
| tst_brkm(TCONF, cleanup, "Failed to obtain block device"); |
| |
| tst_mkfs(cleanup, device, fs_type, NULL, NULL); |
| |
| if (mkdir(mntpoint, DIR_MODE) < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, "mkdir(%s, %#o) failed", |
| mntpoint, DIR_MODE); |
| } |
| |
| /* Call mount(2) */ |
| tst_resm(TINFO, "mount %s to %s fs_type=%s", device, mntpoint, fs_type); |
| TEST(mount(device, mntpoint, fs_type, 0, NULL)); |
| |
| /* check return code */ |
| if (TEST_RETURN != 0) { |
| tst_brkm(TBROK | TTERRNO, cleanup, "mount(2) failed"); |
| } |
| mount_flag = 1; |
| |
| sprintf(fname, "%s/tfile_%d", mntpoint, getpid()); |
| fd = open(fname, O_RDWR | O_CREAT, 0700); |
| if (fd == -1) { |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "open(%s, O_RDWR|O_CREAT,0700) failed", fname); |
| } |
| |
| ret = write(fd, fname, 1); |
| if (ret == -1) { |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "write(%d, %s, 1) failed", fd, fname); |
| } |
| |
| /* close the file we have open */ |
| if (close(fd) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "close(%s) failed", fname); |
| |
| fd_notify = myinotify_init(); |
| |
| if (fd_notify < 0) { |
| if (errno == ENOSYS) |
| tst_brkm(TCONF, cleanup, |
| "inotify is not configured in this kernel."); |
| else |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "inotify_init failed"); |
| } |
| |
| wd = myinotify_add_watch(fd_notify, fname, IN_ALL_EVENTS); |
| if (wd < 0) |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "inotify_add_watch (%d, %s, IN_ALL_EVENTS) failed.", |
| fd_notify, fname); |
| } |
| |
| static void cleanup(void) |
| { |
| if (fd_notify > 0 && close(fd_notify) == -1) |
| tst_resm(TWARN | TERRNO, "close(%d) failed", fd_notify); |
| |
| if (mount_flag) { |
| TEST(tst_umount(mntpoint)); |
| if (TEST_RETURN != 0) |
| tst_resm(TWARN | TTERRNO, "umount(%s) failed", |
| mntpoint); |
| } |
| |
| tst_release_device(device); |
| |
| tst_rmdir(); |
| } |
| |
| #else |
| |
| int main(void) |
| { |
| tst_brkm(TCONF, NULL, "system doesn't have required inotify support"); |
| } |
| |
| #endif |