| /* |
| * |
| * 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 |
| * setregid03.c |
| * |
| * DESCRIPTION |
| * Test setregid() when executed by a non-root user. |
| * |
| * ALGORITHM |
| * |
| * Setup: |
| * Setup signal handling |
| * Get user information. |
| * Pause for SIGUSER1 if option specified. |
| * Setup test values. |
| * Loop if the proper options are given. |
| * For each test set execute the 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. |
| * |
| * USAGE: <for command-line> |
| * setregid03 [-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 John George |
| * -Ported |
| * |
| * Restrictions |
| * This test must be ran as root. |
| * users, sys and bin must be valid groups. |
| */ |
| |
| #include <errno.h> |
| #include <grp.h> |
| #include <stdlib.h> |
| #include <pwd.h> |
| #include <string.h> |
| #include "test.h" |
| #include "usctest.h" |
| #include <sys/wait.h> |
| |
| char *TCID = "setregid03"; |
| int fail = -1; |
| int pass = 0; |
| gid_t neg_one = -1; |
| int exp_enos[] = { 0 }; |
| |
| gid_t users_gr_gid, root_gr_gid, sys_gr_gid, bin_gr_gid; |
| uid_t nobody_pw_uid; |
| |
| /* flag to tell parent if child passed or failed. */ |
| int flag = 0; |
| |
| struct group users, sys, root, bin; |
| struct passwd nobody; |
| /* |
| * The following structure contains all test data. Each structure in the array |
| * is used for a separate test. The tests are executed in the for loop below. |
| */ |
| |
| struct test_data_t { |
| gid_t *real_gid; |
| gid_t *eff_gid; |
| int *exp_ret; |
| struct group *exp_real_usr; |
| struct group *exp_eff_usr; |
| char *test_msg; |
| } test_data[] = { |
| { |
| &sys_gr_gid, &bin_gr_gid, &pass, &sys, &bin, |
| "After setregid(sys, bin),"}, { |
| &neg_one, &sys_gr_gid, &pass, &sys, &sys, "After setregid(-1, sys)"}, |
| { |
| &neg_one, &bin_gr_gid, &pass, &sys, &bin, "After setregid(-1, bin),"}, |
| { |
| &bin_gr_gid, &neg_one, &pass, &bin, &bin, "After setregid(bin, -1),"}, |
| { |
| &neg_one, &neg_one, &pass, &bin, &bin, "After setregid(-1, -1),"}, { |
| &neg_one, &bin_gr_gid, &pass, &bin, &bin, "After setregid(-1, bin),"}, |
| { |
| &bin_gr_gid, &neg_one, &pass, &bin, &bin, "After setregid(bin, -1),"}, |
| { |
| &bin_gr_gid, &bin_gr_gid, &pass, &bin, &bin, |
| "After setregid(bin, bin),"}, { |
| &sys_gr_gid, &neg_one, &fail, &bin, &bin, "After setregid(sys, -1)"}, |
| { |
| &neg_one, &sys_gr_gid, &fail, &bin, &bin, "After setregid(-1, sys)"}, |
| { |
| &sys_gr_gid, &sys_gr_gid, &fail, &bin, &bin, |
| "After setregid(sys, sys)"},}; |
| |
| int TST_TOTAL = sizeof(test_data) / sizeof(test_data[0]); |
| |
| void setup(void); /* Setup function for the test */ |
| void cleanup(void); /* Cleanup function for the test */ |
| void gid_verify(struct group *ru, struct group *eu, char *when); |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| char *msg; |
| |
| 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++) { |
| pid_t pid; |
| int status, i; |
| |
| /* reset tst_count in case we are looping */ |
| tst_count = 0; |
| |
| /* set the appropriate ownership values */ |
| if (setregid(sys_gr_gid, bin_gr_gid) == -1) { |
| tst_brkm(TBROK, NULL, "Initial setregid failed"); |
| } |
| |
| if (seteuid(nobody_pw_uid) == -1) { |
| tst_brkm(TBROK, NULL, "Initial seteuid failed"); |
| } |
| if ((pid = FORK_OR_VFORK()) == -1) { |
| tst_brkm(TBROK, NULL, "fork failed"); |
| } else if (pid == 0) { /* child */ |
| for (i = 0; i < TST_TOTAL; i++) { |
| gid_t test_ret; |
| /* Set the real or effective group id */ |
| TEST(setregid(*test_data[i].real_gid, |
| *test_data[i].eff_gid)); |
| test_ret = TEST_RETURN; |
| |
| if (test_ret == *test_data[i].exp_ret) { |
| if (test_ret == neg_one) { |
| if (TEST_ERRNO != EPERM) { |
| tst_resm(TFAIL, |
| "setregid(%d, %d) " |
| "did not set errno " |
| "value as expected.", |
| *test_data |
| [i].real_gid, |
| *test_data |
| [i].eff_gid); |
| fail = -1; |
| continue; |
| } else { |
| tst_resm(TPASS, |
| "setregid(%d, %d) " |
| "failed as expected.", |
| *test_data |
| [i].real_gid, |
| *test_data |
| [i].eff_gid); |
| } |
| } else { |
| tst_resm(TPASS, |
| "setregid(%d, %d) " |
| "succeeded as expected.", |
| *test_data[i].real_gid, |
| *test_data[i].eff_gid); |
| } |
| } else { |
| tst_resm(TFAIL, "setregid(%d, %d) " |
| "did not return as expected.", |
| *test_data[i].real_gid, |
| *test_data[i].eff_gid); |
| flag = -1; |
| } |
| if (test_ret == -1) { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| } |
| |
| /* |
| * Perform functional verification if test |
| * executed without (-f) option. |
| */ |
| if (STD_FUNCTIONAL_TEST) { |
| gid_verify(test_data[i].exp_real_usr, |
| test_data[i].exp_eff_usr, |
| test_data[i].test_msg); |
| } else { |
| tst_resm(TINFO, "Call succeeded."); |
| } |
| } |
| exit(flag); |
| } else { /* parent */ |
| waitpid(pid, &status, 0); |
| if (WEXITSTATUS(status) != 0) { |
| tst_resm(TFAIL, "test failed within " |
| "child process."); |
| } |
| } |
| } |
| cleanup(); |
| tst_exit(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * setup() |
| * performs all ONE TIME setup for this test |
| */ |
| void setup(void) |
| { |
| tst_require_root(NULL); |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* set the expected errnos... */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| nobody = *(getpwnam("nobody")); |
| nobody_pw_uid = nobody.pw_uid; |
| |
| root = *(getgrnam("root")); |
| root_gr_gid = root.gr_gid; |
| |
| users = *(getgrnam("users")); |
| users_gr_gid = users.gr_gid; |
| |
| sys = *(getgrnam("sys")); |
| sys_gr_gid = sys.gr_gid; |
| |
| bin = *(getgrnam("bin")); |
| bin_gr_gid = bin.gr_gid; |
| |
| /* Pause if that option was specified |
| * TEST_PAUSE contains the code to fork the test with the -c option. |
| */ |
| TEST_PAUSE; |
| } |
| |
| /* |
| * cleanup() |
| * performs all ONE TIME cleanup for this test at |
| * completion or premature exit |
| */ |
| void cleanup(void) |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| } |
| |
| void gid_verify(struct group *rg, struct group *eg, char *when) |
| { |
| if ((getgid() != rg->gr_gid) || (getegid() != eg->gr_gid)) { |
| tst_resm(TINFO, "ERROR: %s real gid = %d; effective gid = %d", |
| when, getgid(), getegid()); |
| tst_resm(TINFO, "Expected: real gid = %d; effective gid = %d", |
| rg->gr_gid, eg->gr_gid); |
| flag = -1; |
| } |
| } |