| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * 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 |
| */ |
| |
| /* |
| * NAME |
| * mkdir02 |
| * |
| * DESCRIPTION |
| * This test will verify that new directory created |
| * by mkdir(2) inherites the group ID from the parent |
| * directory and S_ISGID bit, if the S_ISGID bit is set |
| * in the parent directory. |
| * |
| * ALGORITHM |
| * Setup: |
| * Setup signal handling. |
| * Pause for SIGUSR1 if option specified. |
| * Create temporary directory. |
| * Give write permission on temporary directory for all users. |
| * set up umask |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * fork the first child as ltpuser1 |
| * create a directory tstdir1 with S_ISGID set |
| * fork the second child as ltpuser2 |
| * create a directtory tstdir2 user tstdir1 |
| * check tstdir2's group ID and the S_ISGID bit |
| * if they are the same as tstdir1's |
| * PASS |
| * else FAIL |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created.* |
| * USAGE |
| * mkdir02 [-c n] [-e] [-f] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -f : Turn off functionality Testing. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS |
| * None. |
| */ |
| |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <fcntl.h> |
| #include <pwd.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| |
| #include "test.h" |
| #include "safe_macros.h" |
| |
| void setup(); |
| void cleanup(); |
| |
| #define PERMS 0777 |
| |
| static uid_t nobody_uid, bin_uid; |
| static gid_t nobody_gid, bin_gid; |
| |
| char *TCID = "mkdir02"; |
| int TST_TOTAL = 1; |
| |
| char tstdir1[100]; |
| char tstdir2[100]; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| struct stat buf, buf1; |
| pid_t pid, pid1; |
| int rval, status; |
| |
| /* |
| * parse standard options |
| */ |
| tst_parse_opts(ac, av, NULL, NULL); |
| |
| /* |
| * perform global setup for test |
| */ |
| setup(); |
| |
| /* |
| * check looping state if -i option given |
| */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* check the inherited group ID */ |
| |
| /* |
| * first, fork the first child, set to ltpuser1's uid and gid, |
| * create a directory, with S_ISGID bit set |
| */ |
| |
| sprintf(tstdir1, "tstdir1.%d", getpid()); |
| |
| if ((pid = FORK_OR_VFORK()) < 0) { |
| tst_brkm(TFAIL, cleanup, "fork() failed"); |
| |
| } |
| |
| if (pid == 0) { /* first child */ |
| rval = setregid(nobody_gid, nobody_gid); |
| if (rval < 0) { |
| perror("setregid"); |
| tst_resm(TFAIL, "setregid failed to " |
| "to set the real gid to %d and " |
| "effective gid to %d", |
| nobody_gid, nobody_gid); |
| exit(1); |
| |
| } |
| /* being ltupuser1 */ |
| rval = setreuid(nobody_uid, nobody_uid); |
| if (rval < 0) { |
| perror("setreuid"); |
| tst_resm(TFAIL, "setreuid failed to " |
| "to set the real uid to %d and " |
| "effective uid to %d", |
| nobody_uid, nobody_uid); |
| exit(1); |
| |
| } |
| |
| /* |
| * create a direcoty with S_ISGID bit set |
| * and the group ID is ltpuser1 |
| */ |
| if (mkdir(tstdir1, PERMS) != 0) { |
| perror("mkdir"); |
| tst_resm(TFAIL, "mkdir() failed to create" |
| " a directory with Set " |
| " group ID turn on "); |
| exit(1); |
| |
| } |
| if (stat(tstdir1, &buf1) == -1) { |
| perror("stat"); |
| tst_resm(TFAIL, |
| "failed to stat the new directory" |
| "in mkdir()"); |
| exit(1); |
| |
| } |
| if (chmod(tstdir1, buf1.st_mode | S_ISGID) != 0) { |
| perror("chmod"); |
| tst_resm(TFAIL, "failed to set S_ISGID bit"); |
| exit(1); |
| |
| } |
| |
| /* Successfully create the parent directory */ |
| exit(0); |
| |
| } |
| wait(&status); |
| if (WEXITSTATUS(status) != 0) { |
| tst_brkm(TFAIL, cleanup, |
| "Test to attempt to make a directory" |
| " inherits group ID FAILED "); |
| } |
| /* |
| * fork the second child process, set to ltpuser2's uid and gid |
| * create a sub directory under the directory |
| * just created by child process 1 |
| * check the group ID of the sub directory |
| * should inherit from parent directory |
| */ |
| |
| sprintf(tstdir2, "%s/tstdir2.%d", tstdir1, getpid()); |
| if ((pid1 = FORK_OR_VFORK()) < 0) { |
| perror("fork failed"); |
| tst_brkm(TFAIL, cleanup, "fork() failed"); |
| |
| } else if (pid1 == 0) { /* second child */ |
| |
| /* being user ltpuser2 */ |
| rval = setregid(bin_gid, bin_gid); |
| if (rval < 0) { |
| tst_resm(TFAIL, "setregid failed to " |
| "to set the real gid to %d and " |
| "effective gid to %d", |
| bin_gid, bin_gid); |
| perror("setregid"); |
| exit(1); |
| |
| } |
| rval = setreuid(bin_uid, bin_uid); |
| if (rval < 0) { |
| tst_resm(TFAIL, "setreuid failed to " |
| "to set the real uid to %d and " |
| "effective uid to %d", |
| bin_uid, bin_uid); |
| perror("setreuid"); |
| exit(1); |
| |
| } |
| |
| /* |
| * create a sub direcoty |
| * under the directory just created |
| * by ltpuser1 |
| */ |
| if (mkdir(tstdir2, PERMS) != 0) { |
| tst_resm(TFAIL, "mkdir() failed to create" |
| " a directory %s under %s ", tstdir2, |
| tstdir1); |
| exit(1); |
| |
| } |
| /* |
| * check the group ID |
| * should not be the same as the current processs's |
| * since parent directory is set with S_ISGID bit |
| */ |
| if (stat(tstdir2, &buf) == -1) { |
| tst_resm(TFAIL, |
| "failed to stat the new directory" |
| "in mkdir()"); |
| exit(1); |
| |
| } |
| if (stat(tstdir1, &buf1) == -1) { |
| tst_resm(TFAIL, |
| "failed to stat the new directory" |
| "in mkdir()"); |
| exit(1); |
| |
| } |
| if (buf.st_gid != buf1.st_gid) { |
| tst_resm(TFAIL, "mkdir() FAILED to inherit " |
| " the group ID %d from parent " |
| " directory %d", |
| buf.st_gid, buf1.st_gid); |
| exit(1); |
| |
| } |
| |
| /* check the S_ISGID bit */ |
| if (!(buf.st_mode & S_ISGID)) { |
| tst_resm(TFAIL, "mkdir() FAILED to inherit " |
| " the S_ISGID bit from parent " |
| " directory"); |
| exit(1); |
| |
| } |
| /* PASS */ |
| exit(0); |
| |
| } |
| |
| waitpid(pid1, &status, 0); |
| if (WEXITSTATUS(status) == 0) { |
| tst_resm(TPASS, "Test to attempt to make a directory" |
| " inherits group ID SUCCEEDED "); |
| } else { |
| tst_resm(TFAIL, "Test to attempt to make a directory" |
| " inherits group ID FAILED"); |
| cleanup(); |
| } |
| |
| } |
| |
| /* |
| * cleanup and exit |
| */ |
| cleanup(); |
| |
| tst_exit(); |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| struct passwd *pw; |
| |
| tst_require_root(); |
| |
| pw = SAFE_GETPWNAM(NULL, "nobody"); |
| nobody_uid = pw->pw_uid; |
| nobody_gid = pw->pw_gid; |
| pw = SAFE_GETPWNAM(NULL, "bin"); |
| bin_uid = pw->pw_uid; |
| bin_gid = pw->pw_gid; |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| /* Create a temporary directory and make it current. */ |
| tst_tmpdir(); |
| |
| umask(0); |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void cleanup(void) |
| { |
| |
| /* |
| * Remove the temporary directory. |
| */ |
| tst_rmdir(); |
| |
| /* |
| * Exit with return code appropriate for results. |
| */ |
| |
| } |