| /* |
| * |
| * 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 |
| * rmdir03 |
| * |
| * DESCRIPTION |
| * check rmdir() fails with EPERM or EACCES |
| * |
| * ALGORITHM |
| * Setup: |
| * Setup signal handling. |
| * Pause for SIGUSR1 if option specified. |
| * Create temporary directory. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * 1. create a directory tstdir1 and set the sticky bit, then |
| * create directory tstdir2 under tstdir1. Fork a |
| * child , set to be user nobody. Pass tstdir2 to rmdir(2). |
| * Verify the return value is not 0 and the errno is EPERM |
| * or EACCES. |
| * 2. Fork a child, set to be user nobody. Create a directory |
| * tstdir1 and only give write permission to nobody. |
| * Create directory tstdir2 under tstdir1. Fork the second |
| * child , set to be user nobody. Pass tstdir2 to rmdir(2). |
| * Verify the return value is not 0 and the errno is EACCES. |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created. |
| * |
| * USAGE |
| * rmdir03 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -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 |
| * Test must be run as root. |
| * |
| */ |
| #include <errno.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <fcntl.h> |
| #include <pwd.h> |
| #include <unistd.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| void dochild1(); |
| void dochild2(); |
| void setup(); |
| void cleanup(); |
| extern struct passwd *my_getpwnam(char *); |
| |
| #define PERMS 0777 |
| |
| char user1name[] = "nobody"; |
| |
| char *TCID = "rmdir03"; |
| int TST_TOTAL = 1; |
| |
| char tstdir1[255]; |
| char tstdir2[255]; |
| char tstdir3[255]; |
| char tstdir4[255]; |
| |
| int exp_enos[] = { EPERM, EACCES, 0 }; /* List must end with 0 */ |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| char *msg; |
| pid_t pid; |
| struct stat buf1; |
| int e_code, status, status2; |
| |
| /* |
| * parse standard options |
| */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| #ifdef UCLINUX |
| maybe_run_child(&dochild1, "ns", 1, tstdir2); |
| maybe_run_child(&dochild2, "ns", 2, tstdir4); |
| #endif |
| |
| /* |
| * perform global setup for test |
| */ |
| setup(); |
| |
| /* set the expected errnos... */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* |
| * check looping state if -i option given |
| */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| //test1: $ |
| /* |
| * attempt to rmdir a file whose parent directory has |
| * the sticky bit set without the root right |
| * or effective uid |
| */ |
| |
| if (stat(tstdir1, &buf1) != -1) { |
| tst_brkm(TBROK, cleanup, |
| "tmp directory %s found!", tstdir1); |
| } |
| /* create a directory */ |
| if (mkdir(tstdir1, PERMS) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "Couldnot create directory %s", tstdir1); |
| } |
| if (stat(tstdir1, &buf1) == -1) { |
| perror("stat"); |
| tst_brkm(TBROK, cleanup, "failed to stat directory %s " |
| "in rmdir()", tstdir1); |
| |
| } |
| /* set the sticky bit */ |
| if (chmod(tstdir1, buf1.st_mode | S_ISVTX) != 0) { |
| perror("chmod"); |
| tst_brkm(TBROK, cleanup, |
| "failed to set the S_ISVTX bit"); |
| |
| } |
| /* create a sub directory under tstdir1 */ |
| if (mkdir(tstdir2, PERMS) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "Could not create directory %s", tstdir2); |
| } |
| |
| if ((pid = FORK_OR_VFORK()) == -1) { |
| tst_brkm(TBROK, cleanup, "fork() failed"); |
| } |
| |
| if (pid == 0) { /* first child */ |
| #ifdef UCLINUX |
| if (self_exec(av[0], "ns", 1, tstdir2) < 0) { |
| tst_brkm(TBROK, cleanup, "self_exec failed"); |
| } |
| #else |
| dochild1(); |
| #endif |
| } |
| /* Parent */ |
| |
| //test2: $ |
| /* create the a directory with 0700 permits */ |
| if (mkdir(tstdir3, 0700) == -1) { |
| tst_brkm(TBROK, cleanup, "mkdir(%s, %#o) Failed", |
| tstdir3, PERMS); |
| } |
| /* create the a directory with 0700 permits */ |
| if (mkdir(tstdir4, 0777) == -1) { |
| tst_brkm(TBROK, cleanup, "mkdir(%s, %#o) Failed", |
| tstdir4, PERMS); |
| } |
| |
| if ((pid = FORK_OR_VFORK()) == -1) { |
| tst_brkm(TBROK, cleanup, "fork() failed"); |
| } |
| |
| if (pid == 0) { /* child */ |
| #ifdef UCLINUX |
| if (self_exec(av[0], "ns", 2, tstdir4) < 0) { |
| tst_brkm(TBROK, cleanup, "self_exec failed"); |
| } |
| #else |
| dochild2(); |
| #endif |
| } else { /* parent */ |
| /* wait for the child to finish */ |
| wait(&status); |
| wait(&status2); |
| /* make sure the child returned a good exit status */ |
| e_code = status >> 8; |
| if (e_code != 0) { |
| tst_resm(TFAIL, "Failures reported above"); |
| } else { |
| /* No error in the 1st one, check the 2nd */ |
| e_code = status2 >> 8; |
| if (e_code != 0) { |
| tst_resm(TFAIL, |
| "Failures reported above"); |
| } |
| } |
| } |
| |
| /* clean up things in case we are looping */ |
| |
| (void)rmdir(tstdir2); |
| (void)rmdir(tstdir1); |
| (void)rmdir(tstdir4); |
| (void)rmdir(tstdir3); |
| |
| } |
| |
| /* |
| * cleanup and exit |
| */ |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * dochild1() |
| */ |
| void dochild1() |
| { |
| int retval = 0; |
| struct passwd *nobody = my_getpwnam(user1name); |
| |
| /* set to nobody */ |
| if (seteuid(nobody->pw_uid) == -1) { |
| retval = 1; |
| tst_brkm(TBROK, cleanup, "setreuid failed to " |
| "set effective uid to %d", nobody->pw_uid); |
| } |
| |
| /* rmdir tstdir2 */ |
| TEST(rmdir(tstdir2)); |
| |
| if (TEST_ERRNO) { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| } |
| |
| if (TEST_RETURN != -1) { |
| retval = 1; |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| } else if ((TEST_ERRNO != EPERM) && (TEST_ERRNO != EACCES)) { |
| retval = 1; |
| tst_resm(TFAIL, "Expected EPERM or EACCES, got %d", TEST_ERRNO); |
| } else { |
| tst_resm(TPASS, "rmdir() produced EPERM or EACCES"); |
| } |
| |
| if (seteuid(0) == -1) { |
| retval = 1; |
| tst_brkm(TBROK, cleanup, "seteuid(0) failed"); |
| } |
| exit(retval); |
| /* END of child 1 (test1) */ |
| } |
| |
| /* |
| * dochild1() |
| */ |
| void dochild2() |
| { |
| int retval = 0; |
| struct passwd *nobody = my_getpwnam(user1name); |
| |
| /* set to nobody */ |
| if (seteuid(nobody->pw_uid) == -1) { |
| retval = 1; |
| tst_brkm(TBROK, cleanup, "setreuid failed to " |
| "set effective uid to %d", nobody->pw_uid); |
| } |
| |
| /* rmdir tstdir4 */ |
| TEST(rmdir(tstdir4)); |
| |
| if (TEST_ERRNO) { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| } |
| |
| if (TEST_RETURN != -1) { |
| retval = 1; |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| } else if (TEST_ERRNO != EACCES) { |
| retval = 1; |
| tst_resm(TFAIL, "Expected EACCES got %d", TEST_ERRNO); |
| } else { |
| tst_resm(TPASS, "rmdir() produced EACCES"); |
| } |
| |
| if (seteuid(0) == -1) { |
| retval = 1; |
| tst_brkm(TBROK, cleanup, "seteuid(0) failed"); |
| } |
| exit(retval); |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void setup() |
| { |
| /* test must be run as root */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, NULL, "test must be run as root"); |
| } |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| /* Create a temporary directory and make it current. */ |
| tst_tmpdir(); |
| |
| umask(0); |
| |
| sprintf(tstdir1, "./tstdir1_%d", getpid()); |
| sprintf(tstdir2, "%s/tstdir2_%d", tstdir1, getpid()); |
| sprintf(tstdir3, "./tstdir3_%d", getpid()); |
| sprintf(tstdir4, "%s/tstdir3_%d", tstdir3, getpid()); |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void cleanup() |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| /* |
| * Remove the temporary directory. |
| */ |
| tst_rmdir(); |
| |
| /* |
| * Exit with return code appropriate for results. |
| */ |
| |
| } |