| /* |
| * Copyright (c) Wipro Technologies Ltd, 2002. 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. |
| * |
| * 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. |
| * |
| */ |
| |
| /* |
| AUTHOR: Nirmala Devi Dhanasekar <nirmala.devi@wipro.com> |
| |
| EXECUTED BY: root / superuser |
| |
| DESCRIPTION |
| Check for basic errors returned by mount(2) system call. |
| |
| Verify that mount(2) returns -1 and sets errno to |
| 1) ENODEV if filesystem type not configured |
| 2) ENOTBLK if specialfile is not a block device |
| 3) EBUSY if specialfile is already mounted or |
| it cannot be remounted read-only, because it still holds |
| files open for writing. |
| 4) EINVAL if specialfile or device is invalid or |
| a remount was attempted, while source was not already |
| mounted on target. |
| 5) EFAULT if specialfile or device file points to invalid address space. |
| 6) ENAMETOOLONG if pathname was longer than MAXPATHLEN. |
| 7) ENOENT if pathname was empty or has a nonexistent component. |
| 8) ENOTDIR if not a directory. |
| |
| RESTRICTIONS |
| test must be run with the -D option |
| test doesn't support -c option to run it in parallel, as mount |
| syscall is not supposed to run in parallel. |
| */ |
| |
| #include <errno.h> |
| #include <sys/mount.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/fcntl.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| static void help(void); |
| static void setup(void); |
| static void cleanup(void); |
| |
| static int setup_test(int, int); |
| static void cleanup_test(int); |
| |
| char *TCID = "mount02"; |
| |
| #define FSTYPE_LEN 20 |
| #define DIR_MODE (S_IRWXU | S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP) |
| #define FILE_MODE (S_IRWXU | S_IRWXG | S_IRWXO) |
| |
| static char *Einval = (char *)-1; |
| static char Longpathname[PATH_MAX + 2]; |
| static char Path[PATH_MAX]; |
| static char *Type; |
| static char *Fstype; |
| static char *Device; |
| static char *Mntpoint; |
| static unsigned long Flag; |
| |
| static int fd; |
| static char *mntpoint = "mntpoint"; |
| static char *fstype = "ext2"; |
| static char *device; |
| static int Dflag; |
| |
| static int exp_enos[] = { |
| ENODEV, ENOTBLK, EBUSY, EBUSY, EINVAL, |
| EINVAL, EINVAL, EFAULT, EFAULT, ENAMETOOLONG, |
| ENOENT, ENOENT, ENOTDIR, 0 |
| }; |
| |
| int TST_TOTAL = (sizeof(exp_enos) / sizeof(exp_enos[0])) - 1; |
| |
| static option_t options[] = { |
| {"T:", NULL, &fstype}, |
| {"D:", &Dflag, &device}, |
| {NULL, NULL, NULL} |
| }; |
| |
| int main(int ac, char **av) |
| { |
| int lc, i; |
| char *msg; |
| |
| msg = parse_opts(ac, av, options, &help); |
| if (msg != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| /* Check for mandatory option of the testcase */ |
| if (Dflag == 0) |
| tst_brkm(TBROK, NULL, "You must specifiy the device used for " |
| " mounting with -D option."); |
| |
| if (STD_COPIES != 1) { |
| tst_resm(TINFO, "-c option has no effect for this testcase - " |
| "%s doesn't allow running more than one instance " |
| "at a time", TCID); |
| STD_COPIES = 1; |
| } |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| for (i = 0; i < TST_TOTAL; ++i) { |
| |
| if (setup_test(i, lc) != 0) { |
| tst_resm(TWARN, "testcase setup failed"); |
| continue; |
| } |
| |
| /* Call mount(2) to test different test conditions. |
| * verify that it fails with -1 return value and |
| * sets appropriate errno. |
| */ |
| TEST(mount(Device, Mntpoint, Fstype, Flag, NULL)); |
| |
| /* check return code */ |
| if (TEST_RETURN == -1 && TEST_ERRNO == exp_enos[i]) { |
| tst_resm(TPASS | TERRNO, |
| "mount got expected failure"); |
| } else { |
| if (umount(mntpoint) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "umount of %s failed", |
| Mntpoint); |
| |
| tst_resm(TFAIL | TERRNO, |
| "mount(2) failed to produce expected " |
| "error (%d)", exp_enos[i]); |
| } |
| |
| cleanup_test(i); |
| } |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| /* |
| * int |
| * setup_test() - Setup function for test cases based on the error values |
| * to be returned. |
| */ |
| static int setup_test(int i, int cnt) |
| { |
| char temp[20]; |
| |
| Device = device; |
| Fstype = Type; |
| Mntpoint = mntpoint; |
| Flag = 0; |
| switch (i) { |
| case 0: |
| /* Setup for mount(2) returning errno ENODEV. */ |
| Fstype = "error"; |
| return 0; |
| case 1: |
| /* Setup for mount(2) returning errno ENOTBLK. */ |
| |
| sprintf(Path, "./mydev_%d_%d", getpid(), cnt); |
| TEST(mknod(Path, S_IFCHR | FILE_MODE, 0)); |
| if (TEST_RETURN == 0) { |
| Device = Path; |
| return 0; |
| } else { |
| tst_resm(TWARN, "mknod(2) failed to create device: %s", |
| Path); |
| return 1; |
| } |
| case 2: |
| /* Setup for mount(2) returning errno EBUSY. */ |
| |
| TEST(mount(Device, Mntpoint, Fstype, 0, NULL)); |
| if (TEST_RETURN != 0) { |
| tst_resm(TWARN | TTERRNO, |
| "mount(2) failed to mount device %s", device); |
| return 1; |
| } |
| return 0; |
| case 3: |
| /* Setup for mount(2) returning errno EBUSY. */ |
| |
| TEST(mount(Device, Mntpoint, Fstype, 0, NULL)); |
| if (TEST_RETURN != 0) { |
| tst_resm(TWARN | TTERRNO, |
| "mount(2) failed to mount device %s", device); |
| return 1; |
| } |
| if (getcwd(Path, PATH_MAX) == NULL) { |
| tst_resm(TWARN | TERRNO, "getcwd failed"); |
| return 1; |
| } |
| sprintf(temp, "/%s/t3_%d", mntpoint, cnt); |
| strcat(Path, temp); |
| |
| fd = open(Path, O_CREAT | O_RDWR, S_IRWXU); |
| if (fd == -1) { |
| tst_resm(TWARN | TERRNO, "open() failed to create %s", |
| Path); |
| return 1; |
| } |
| Flag = MS_REMOUNT | MS_RDONLY; |
| return 0; |
| case 4: |
| /* Setup for mount(2) returning errno EINVAL. */ |
| |
| Device = NULL; |
| break; |
| case 5: |
| /* Setup for mount(2) returning errno EINVAL. */ |
| |
| Fstype = NULL; |
| break; |
| case 6: |
| /* Setup for mount(2) returning errno EINVAL. */ |
| |
| Flag = MS_REMOUNT; |
| break; |
| case 7: |
| /* Setup for mount(2) returning errno EFAULT. */ |
| |
| Fstype = Einval; |
| break; |
| case 8: |
| /* Setup for mount(2) returning errno EFAULT. */ |
| |
| Device = Einval; |
| break; |
| case 9: |
| /* Setup for mount(2) returning errno ENAMETOOLONG. */ |
| |
| memset(Longpathname, 'a', PATH_MAX + 2); |
| Mntpoint = Longpathname; |
| break; |
| case 10: |
| /* Setup for mount(2) returning errno ENOENT. */ |
| |
| strncpy(Path, " ", 3); |
| Mntpoint = Path; |
| break; |
| case 11: |
| /* Setup for mount(2) returning errno ENOENT. */ |
| |
| sprintf(Path, "%s/noexistent", mntpoint); |
| Mntpoint = Path; |
| break; |
| case 12: |
| /* Setup for mount(2) returning errno ENOTDIR. */ |
| |
| if (getcwd(Path, PATH_MAX) == NULL) { |
| tst_resm(TWARN, "getcwd failed"); |
| return 1; |
| } |
| sprintf(temp, "/t_%d_%d", getpid(), cnt); |
| strcat(Path, temp); |
| fd = open(Path, O_CREAT, S_IRWXU); |
| if (fd == -1) { |
| tst_resm(TWARN, "open failed to create %s", Path); |
| return 1; |
| } else { |
| Mntpoint = Path; |
| return 0; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * int |
| * cleanup_test() - Setup function for test cases based on the error values |
| * to be returned. |
| */ |
| static void cleanup_test(int i) |
| { |
| switch (i) { |
| case 0: |
| case 5: |
| case 7: |
| Type = fstype; |
| break; |
| case 3: |
| close(fd); |
| /* FALLTHROUGH */ |
| case 2: |
| if (umount(mntpoint)) |
| tst_resm(TWARN | TERRNO, "umount failed"); |
| break; |
| case 12: |
| close(fd); |
| break; |
| } |
| } |
| |
| static void setup(void) |
| { |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| tst_require_root(NULL); |
| tst_mkfs(NULL, device, fstype, NULL); |
| |
| tst_tmpdir(); |
| |
| if (mkdir(mntpoint, DIR_MODE) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "mkdir(%s, %#o) failed", |
| mntpoint, DIR_MODE); |
| |
| TEST_EXP_ENOS(exp_enos); |
| |
| TEST_PAUSE; |
| } |
| |
| static void cleanup(void) |
| { |
| TEST_CLEANUP; |
| tst_rmdir(); |
| } |
| |
| static void help(void) |
| { |
| printf("-T type : specifies the type of filesystem to be mounted." |
| " Default ext2.\n"); |
| printf("-D device : device used for mounting.\n"); |
| } |