| /* |
| * |
| * 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 |
| */ |
| |
| /* |
| * Test Name: fchown02 |
| * |
| * Test Description: |
| * Verify that, when fchown(2) invoked by super-user to change the owner and |
| * group of a file specified by file descriptor to any numeric |
| * owner(uid)/group(gid) values, |
| * - clears setuid and setgid bits set on an executable file. |
| * - preserves setgid bit set on a non-group-executable file. |
| * |
| * Expected Result: |
| * fchown(2) should return 0 and the ownership set on the file should match |
| * the numeric values contained in owner and group respectively. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Create temporary directory. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, if system call failed (return=-1) |
| * Log the errno and Issue a FAIL message. |
| * Otherwise, |
| * Verify the Functionality of system call |
| * if successful, |
| * Issue Functionality-Pass message. |
| * Otherwise, |
| * Issue Functionality-Fail message. |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created. |
| * |
| * Usage: <for command-line> |
| * fchown02 [-c n] [-f] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -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: |
| * This test should be run by 'super-user' (root) only. |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/fcntl.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #define FILE_MODE S_IFREG | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH |
| #define NEW_PERMS1 S_IFREG | S_IRWXU | S_IRWXG | S_ISUID | S_ISGID |
| #define NEW_PERMS2 S_IFREG | S_IRWXU | S_ISGID |
| #define EXP_PERMS S_IFREG | S_IRWXU | S_IRWXG |
| #define TESTFILE1 "testfile1" |
| #define TESTFILE2 "testfile2" |
| |
| char *TCID = "fchown02"; /* Test program identifier. */ |
| int TST_TOTAL = 2; /* Total number of test conditions */ |
| int Fd1; /* File descriptor for testfile1 */ |
| int Fd2; /* File descriptor for testfile2 */ |
| |
| int no_setup(); |
| int setup1(); /* Test specific setup functions */ |
| int setup2(); |
| |
| struct test_case_t { /* test case struct. to for different tests */ |
| int fd; |
| char *pathname; |
| char *desc; |
| uid_t user_id; |
| gid_t group_id; |
| int test_flag; |
| int (*setupfunc) (); |
| } Test_cases[] = { |
| { |
| 1, TESTFILE1, "Setuid/Setgid bits cleared", 700, 701, 1, setup1}, { |
| 2, TESTFILE2, "Setgid bit not cleared", 700, 701, 2, setup2}, { |
| 0, NULL, NULL, 0, 0, 0, no_setup} |
| }; |
| |
| void setup(); /* setup function for the test */ |
| void cleanup(); /* cleanup function for the test */ |
| |
| int main(int ac, char **av) |
| { |
| struct stat stat_buf; /* stat(2) struct contents */ |
| int lc; |
| char *msg; |
| int ind; /* counter variable for chmod(2) tests */ |
| uid_t user_id; /* user id of the user set for testfile */ |
| gid_t group_id; /* group id of the user set for testfile */ |
| int fildes; /* File descriptor for testfile */ |
| int test_flag; /* test condition specific flag variable */ |
| char *file_name; /* ptr. for test file name */ |
| char *test_desc; /* test specific message */ |
| |
| /* Parse standard options given to run the test. */ |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| } |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| for (ind = 0; Test_cases[ind].desc != NULL; ind++) { |
| fildes = Test_cases[ind].fd; |
| file_name = Test_cases[ind].pathname; |
| test_desc = Test_cases[ind].desc; |
| user_id = Test_cases[ind].user_id; |
| group_id = Test_cases[ind].group_id; |
| test_flag = Test_cases[ind].test_flag; |
| |
| if (fildes == 1) { |
| fildes = Fd1; |
| } else { |
| fildes = Fd2; |
| } |
| |
| /* |
| * Call fchwon(2) with different user id and |
| * group id (numeric values) to set it on |
| * testfile. |
| */ |
| TEST(fchown(fildes, user_id, group_id)); |
| |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL, |
| "fchown() Fails on %s, errno=%d", |
| file_name, TEST_ERRNO); |
| continue; |
| } |
| /* |
| * Perform functional verification if test |
| * executed without (-f) option. |
| */ |
| if (STD_FUNCTIONAL_TEST) { |
| /* |
| * Get the testfile information using |
| * fstat(2). |
| */ |
| if (fstat(fildes, &stat_buf) < 0) { |
| tst_brkm(TFAIL, cleanup, "fstat(2) of " |
| "%s failed, errno=%d", |
| file_name, TEST_ERRNO); |
| } |
| |
| /* |
| * Check for expected Ownership ids |
| * set on testfile. |
| */ |
| if ((stat_buf.st_uid != user_id) || |
| (stat_buf.st_gid != group_id)) { |
| tst_resm(TFAIL, "%s: Incorrect" |
| " ownership set, Expected %d " |
| "%d", file_name, |
| user_id, group_id); |
| } |
| |
| /* |
| * Verify that S_ISUID/S_ISGID bits |
| * set on the testfile(s) in setup()s |
| * are cleared by chown(). |
| */ |
| if ((test_flag == 1) && ((stat_buf.st_mode & |
| (S_ISUID | S_ISGID)))) |
| { |
| tst_resm(TFAIL, |
| "%s: Incorrect mode " |
| "permissions %#o, Expected " |
| "%#o", file_name, NEW_PERMS1, |
| EXP_PERMS); |
| } else if ((test_flag == 2) |
| && (!(stat_buf.st_mode & S_ISGID))) { |
| tst_resm(TFAIL, |
| "%s: Incorrect mode " |
| "permissions %#o, Expected " |
| "%#o", file_name, |
| stat_buf.st_mode, NEW_PERMS2); |
| } else { |
| tst_resm(TPASS, |
| "fchown() on %s succeeds : %s", |
| file_name, test_desc); |
| } |
| } else { |
| tst_resm(TPASS, "call succeeded"); |
| } |
| } |
| } |
| |
| cleanup(); |
| |
| return (0); |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| * Create a temporary directory and change directory to it. |
| * Call test specific setup functions. |
| */ |
| void setup() |
| { |
| int ind; |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Check that the test process id is super/root */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, NULL, "Must be super/root for this test!"); |
| tst_exit(); |
| } |
| |
| TEST_PAUSE; |
| |
| tst_tmpdir(); |
| |
| /* call individual setup functions */ |
| for (ind = 0; Test_cases[ind].desc != NULL; ind++) { |
| Test_cases[ind].setupfunc(); |
| } |
| } |
| |
| /* |
| * setup1() - Setup function for fchown(2) to verify setuid/setgid bits |
| * set on an executable file will not be cleared. |
| * Creat a testfile and set setuid/gid bits on it. |
| */ |
| int setup1() |
| { |
| /* Creat a testfile under temporary directory */ |
| if ((Fd1 = open(TESTFILE1, O_RDWR | O_CREAT, FILE_MODE)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "open(%s, O_RDWR|O_CREAT, %o) Failed, errno=%d : %s", |
| TESTFILE1, FILE_MODE, errno, strerror(errno)); |
| } |
| |
| /* Set setuid/setgid bits on the test file created */ |
| if (chmod(TESTFILE1, NEW_PERMS1) != 0) { |
| tst_brkm(TBROK, cleanup, "chmod(%s) Failed, errno=%d : %s", |
| TESTFILE1, errno, strerror(errno)); |
| } |
| return 0; |
| } |
| |
| /* |
| * setup2() - Setup function for fchown(2) to verify setgid bit set |
| * set on non-group executable file will not be cleared. |
| * Creat a testfile and set setgid bit on it. |
| */ |
| int setup2() |
| { |
| /* Creat a testfile under temporary directory */ |
| if ((Fd2 = open(TESTFILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "open(%s, O_RDWR|O_CREAT, %o) Failed, errno=%d : %s", |
| TESTFILE2, FILE_MODE, errno, strerror(errno)); |
| } |
| |
| /* Set setgid bit on the test file created */ |
| if (chmod(TESTFILE2, NEW_PERMS2) != 0) { |
| tst_brkm(TBROK, cleanup, "chmod(%s) Failed, errno=%d : %s", |
| TESTFILE2, errno, strerror(errno)); |
| } |
| return 0; |
| } |
| |
| /* |
| * no_setup() - Some test conditions for mknod(2) do not any setup. |
| * Hence, this function just returns 0. |
| * This function simply returns 0. |
| */ |
| int no_setup() |
| { |
| return 0; |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| * Close the temporary files. |
| * Remove the test directory and testfile created in the setup. |
| */ |
| void cleanup() |
| { |
| /* |
| * print timing stats if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| /* Close the temporary file(s) opened in the setups */ |
| if (close(Fd1) == -1) { |
| tst_resm(TBROK, "close(%s) Failed, errno=%d : %s", |
| TESTFILE1, errno, strerror(errno)); |
| } |
| if (close(Fd2) == -1) { |
| tst_resm(TBROK, "close(%s) Failed, errno=%d : %s", |
| TESTFILE2, errno, strerror(errno)); |
| } |
| |
| tst_rmdir(); |
| |
| } |