| /* |
| * |
| * 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: chown03 |
| * |
| * Test Description: |
| * Verify that, chown(2) succeeds to change the group of a file specified |
| * by path when called by non-root user with the following constraints, |
| * - euid of the process is equal to the owner of the file. |
| * - the intended gid is either egid, or one of the supplementary gids |
| * of the process. |
| * Also, verify that chown() clears the setuid/setgid bits set on the file. |
| * |
| * Expected Result: |
| * chown(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> |
| * chown03 [-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: |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/fcntl.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <grp.h> |
| #include <pwd.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #define FILE_MODE (S_IFREG|S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH) |
| #define NEW_PERMS (S_IFREG|S_IRWXU|S_IRWXG|S_ISUID|S_ISGID) |
| #define TESTFILE "testfile" |
| |
| char *TCID = "chown03"; /* Test program identifier. */ |
| int TST_TOTAL = 1; /* Total number of test conditions */ |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| 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; |
| uid_t user_id; /* Owner id of the test file. */ |
| gid_t group_id; /* Group id of the test file. */ |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| user_id = geteuid(); |
| group_id = getegid(); |
| |
| TEST(chown(TESTFILE, -1, group_id)); |
| |
| if (TEST_RETURN == -1) { |
| tst_resm(TFAIL | TTERRNO, "chown(%s, ..) failed", |
| TESTFILE); |
| continue; |
| } |
| |
| if (STD_FUNCTIONAL_TEST) { |
| if (stat(TESTFILE, &stat_buf) == -1) |
| tst_brkm(TFAIL | TERRNO, cleanup, |
| "stat failed"); |
| |
| if (stat_buf.st_uid != user_id || |
| stat_buf.st_gid != group_id) |
| tst_resm(TFAIL, "%s: Incorrect ownership" |
| "set to %d %d, Expected %d %d", |
| TESTFILE, stat_buf.st_uid, |
| stat_buf.st_gid, user_id, group_id); |
| |
| if (stat_buf.st_mode != |
| (NEW_PERMS & ~(S_ISUID | S_ISGID))) |
| tst_resm(TFAIL, "%s: incorrect mode permissions" |
| " %#o, Expected %#o", TESTFILE, |
| stat_buf.st_mode, |
| NEW_PERMS & ~(S_ISUID | S_ISGID)); |
| else |
| tst_resm(TPASS, "chown(%s, ..) was successful", |
| TESTFILE); |
| } else |
| tst_resm(TPASS, "call succeeded"); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * void |
| * setup() - performs all ONE TIME setup for this test. |
| * Create a temporary directory and change directory to it. |
| * Create a test file under temporary directory and close it |
| * Change the group ownership on testfile. |
| */ |
| void setup() |
| { |
| int fd; /* file handler for testfile */ |
| |
| TEST_PAUSE; |
| |
| tst_require_root(NULL); |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| tst_tmpdir(); |
| |
| ltpuser = getpwnam(nobody_uid); |
| if (ltpuser == NULL) |
| tst_brkm(TBROK | TERRNO, NULL, "getpwnam(\"nobody\") failed"); |
| if (setegid(ltpuser->pw_gid) == -1) |
| tst_brkm(TBROK | TERRNO, NULL, "setegid(%d) failed", |
| ltpuser->pw_gid); |
| if (seteuid(ltpuser->pw_uid) == -1) |
| tst_brkm(TBROK | TERRNO, NULL, "seteuid(%d) failed", |
| ltpuser->pw_uid); |
| |
| /* Create a test file under temporary directory */ |
| if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, |
| "open(%s, O_RDWR|O_CREAT, %o) failed", TESTFILE, |
| FILE_MODE); |
| |
| if (seteuid(0) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "seteuid(0) failed"); |
| |
| if (fchown(fd, -1, 0) < 0) |
| tst_brkm(TBROK | TERRNO, cleanup, "fchown failed"); |
| |
| if (fchmod(fd, NEW_PERMS) < 0) |
| tst_brkm(TBROK | TERRNO, cleanup, "fchmod failed"); |
| |
| if (seteuid(ltpuser->pw_uid) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "seteuid to nobody failed"); |
| |
| if (close(fd) == -1) |
| tst_brkm(TBROK | TERRNO, cleanup, "closing %s failed", |
| TESTFILE); |
| } |
| |
| void cleanup() |
| { |
| TEST_CLEANUP; |
| |
| if (setegid(0) == -1) |
| tst_resm(TWARN | TERRNO, "setegid(0) failed"); |
| if (seteuid(0) == -1) |
| tst_resm(TWARN | TERRNO, "seteuid(0) failed"); |
| |
| tst_rmdir(); |
| |
| } |