| /* |
| * Copyright (c) International Business Machines Corp., 2001 |
| * 07/2001 Ported by Wayne Boyer |
| * Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * Test Name: chown04 |
| * |
| * Test Description: |
| * Verify that, |
| * 1) chown(2) returns -1 and sets errno to EPERM if the effective user id |
| * of process does not match the owner of the file and the process |
| * is not super user. |
| * 2) chown(2) returns -1 and sets errno to EACCES if search permission is |
| * denied on a component of the path prefix. |
| * 3) chown(2) returns -1 and sets errno to EFAULT if pathname points |
| * outside user's accessible address space. |
| * 4) chown(2) returns -1 and sets errno to ENAMETOOLONG if the pathname |
| * component is too long. |
| * 5) chown(2) returns -1 and sets errno to ENOTDIR if the directory |
| * component in pathname is not a directory. |
| * 6) chown(2) returns -1 and sets errno to ENOENT if the specified file |
| * does not exists. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <grp.h> |
| #include <pwd.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| #include "compat_16.h" |
| |
| #define MODE_RWX (S_IRWXU|S_IRWXG|S_IRWXO) |
| #define FILE_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) |
| #define DIR_MODE (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP| \ |
| S_IXGRP|S_IROTH|S_IXOTH) |
| #define DIR_TEMP "testdir_1" |
| #define TEST_FILE1 "tfile_1" |
| #define TEST_FILE2 (DIR_TEMP "/tfile_2") |
| #define TEST_FILE3 "t_file/tfile_3" |
| #define TEST_FILE4 "test_eloop1" |
| #define TEST_FILE5 "mntpoint" |
| |
| static char long_path[PATH_MAX + 2]; |
| static const char *device; |
| static int mount_flag; |
| |
| static struct test_case_t { |
| char *pathname; |
| int exp_errno; |
| } tc[] = { |
| {TEST_FILE1, EPERM}, |
| {TEST_FILE2, EACCES}, |
| {(char *)-1, EFAULT}, |
| {long_path, ENAMETOOLONG}, |
| {"", ENOENT}, |
| {TEST_FILE3, ENOTDIR}, |
| {TEST_FILE4, ELOOP}, |
| {TEST_FILE5, EROFS} |
| }; |
| |
| TCID_DEFINE(chown04); |
| int TST_TOTAL = ARRAY_SIZE(tc); |
| |
| static char *bad_addr; |
| |
| static void setup(void); |
| static void cleanup(void); |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| int i; |
| uid_t user_id; |
| gid_t group_id; |
| |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| UID16_CHECK((user_id = geteuid()), "chown", cleanup) |
| GID16_CHECK((group_id = getegid()), "chown", cleanup) |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| tst_count = 0; |
| |
| for (i = 0; i < TST_TOTAL; i++) { |
| TEST(CHOWN(cleanup, tc[i].pathname, user_id, group_id)); |
| |
| if (TEST_RETURN == 0) { |
| tst_resm(TFAIL, "chown succeeded unexpectedly"); |
| continue; |
| } |
| |
| if (TEST_ERRNO == tc[i].exp_errno) { |
| tst_resm(TPASS | TTERRNO, "chown failed"); |
| } else { |
| tst_resm(TFAIL | TTERRNO, |
| "chown failed; expected: %d - %s", |
| tc[i].exp_errno, |
| tst_strerrno(tc[i].exp_errno)); |
| } |
| } |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void setup(void) |
| { |
| struct passwd *ltpuser; |
| const char *fs_type; |
| |
| tst_require_root(NULL); |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| ltpuser = SAFE_GETPWNAM(NULL, "nobody"); |
| |
| tst_tmpdir(); |
| |
| fs_type = tst_dev_fs_type(); |
| device = tst_acquire_device(cleanup); |
| if (!device) |
| tst_brkm(TCONF, cleanup, "Failed to obtain block device"); |
| |
| tst_mkfs(cleanup, device, fs_type, NULL); |
| |
| TEST_PAUSE; |
| |
| memset(long_path, 'a', PATH_MAX - 1); |
| |
| bad_addr = mmap(0, 1, PROT_NONE, |
| MAP_PRIVATE_EXCEPT_UCLINUX | MAP_ANONYMOUS, 0, 0); |
| if (bad_addr == MAP_FAILED) |
| tst_brkm(TBROK | TERRNO, cleanup, "mmap failed"); |
| |
| tc[2].pathname = bad_addr; |
| |
| SAFE_SYMLINK(cleanup, "test_eloop1", "test_eloop2"); |
| SAFE_SYMLINK(cleanup, "test_eloop2", "test_eloop1"); |
| |
| SAFE_SETEUID(cleanup, 0); |
| SAFE_TOUCH(cleanup, "t_file", MODE_RWX, NULL); |
| SAFE_TOUCH(cleanup, TEST_FILE1, 0666, NULL); |
| SAFE_MKDIR(cleanup, DIR_TEMP, S_IRWXU); |
| SAFE_TOUCH(cleanup, TEST_FILE2, 0666, NULL); |
| |
| SAFE_MKDIR(cleanup, "mntpoint", DIR_MODE); |
| if (mount(device, "mntpoint", fs_type, MS_RDONLY, NULL) < 0) { |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "mount device:%s failed", device); |
| } |
| mount_flag = 1; |
| |
| SAFE_SETEUID(cleanup, ltpuser->pw_uid); |
| } |
| |
| void cleanup(void) |
| { |
| if (seteuid(0) == -1) |
| tst_resm(TWARN | TERRNO, "seteuid(0) failed"); |
| |
| if (mount_flag && tst_umount("mntpoint") < 0) { |
| tst_brkm(TBROK | TERRNO, NULL, |
| "umount device:%s failed", device); |
| } |
| |
| if (device) |
| tst_release_device(NULL, device); |
| |
| tst_rmdir(); |
| } |