| /* |
| * |
| * 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 |
| * sched_setscheduler01.c |
| * |
| * DESCRIPTION |
| * Testcase to test whether sched_setscheduler(2) sets the errnos |
| * correctly. |
| * |
| * ALGORITHM |
| * 1. Call sched_setscheduler as a non-root uid, and expect EPERM |
| * to be returned. |
| * |
| * USAGE: <for command-line> |
| * sched_setscheduler02 [-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 |
| * Must run test as root. |
| */ |
| #include <stdio.h> |
| #include <errno.h> |
| #include <sched.h> |
| #include <pwd.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include "test.h" |
| |
| #define SCHED_INVALID 99 |
| #define INVALID_PID 999999 |
| |
| char *TCID = "sched_setscheduler02"; |
| int TST_TOTAL = 1; |
| |
| extern struct passwd *my_getpwnam(char *); |
| |
| void setup(void); |
| void cleanup(void); |
| |
| char user1name[] = "nobody"; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| |
| struct passwd *nobody; |
| pid_t pid; |
| struct sched_param param; |
| int status; |
| |
| 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++) { |
| |
| /* reset tst_count in case we are looping */ |
| tst_count = 0; |
| |
| if ((pid = FORK_OR_VFORK()) == -1) { |
| tst_brkm(TBROK, cleanup, "fork failed"); |
| } |
| |
| if (pid == 0) { /* child */ |
| param.sched_priority = 1; |
| |
| nobody = my_getpwnam(user1name); |
| |
| if (seteuid(nobody->pw_uid) == -1) { |
| tst_brkm(TBROK, cleanup, "seteuid() failed"); |
| } |
| |
| TEST(sched_setscheduler(pid, SCHED_FIFO, ¶m)); |
| |
| if (TEST_ERRNO) { |
| } |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "sched_setscheduler(2) passed " |
| "with non root priveledges"); |
| } else if (TEST_ERRNO != EPERM) { |
| tst_resm(TFAIL, "Expected EPERM, got %d", |
| TEST_ERRNO); |
| } else { |
| tst_resm(TPASS, "got EPERM"); |
| } |
| } else { /* parent */ |
| /* let the child carry on */ |
| wait(&status); |
| if (WIFEXITED(status) != 0) { /* Exit with errors */ |
| exit(WEXITSTATUS(status)); |
| } else { |
| exit(0); |
| } |
| } |
| |
| if (seteuid(0) == -1) { |
| tst_brkm(TBROK, cleanup, "seteuid(0) failed"); |
| } |
| } |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| tst_require_root(NULL); |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| } |
| |
| /* |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void cleanup(void) |
| { |
| |
| } |