You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
142 lines
3.4 KiB
142 lines
3.4 KiB
/*
|
|
* 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
|
|
*
|
|
* Ported by John George
|
|
*/
|
|
|
|
/*
|
|
* Test that root can change the real and effective uid to an
|
|
* unpriviledged user.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <pwd.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include "test.h"
|
|
#include "compat_16.h"
|
|
|
|
TCID_DEFINE(setreuid04);
|
|
|
|
static uid_t neg_one = -1;
|
|
|
|
static struct passwd nobody, root;
|
|
|
|
/*
|
|
* 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 {
|
|
uid_t *real_uid;
|
|
uid_t *eff_uid;
|
|
struct passwd *exp_real_usr;
|
|
struct passwd *exp_eff_usr;
|
|
char *test_msg;
|
|
} test_data[] = {
|
|
{
|
|
&neg_one, &neg_one, &root, &root, "After setreuid(-1, nobody),"}, {
|
|
&nobody.pw_uid, &nobody.pw_uid, &nobody, &nobody,
|
|
"After setreuid(-1, -1),"},};
|
|
|
|
int TST_TOTAL = ARRAY_SIZE(test_data);
|
|
|
|
static void setup(void);
|
|
static void cleanup(void);
|
|
static void uid_verify(struct passwd *, struct passwd *, char *);
|
|
|
|
int main(int ac, char **av)
|
|
{
|
|
int lc;
|
|
|
|
tst_parse_opts(ac, av, NULL, NULL);
|
|
|
|
setup();
|
|
|
|
for (lc = 0; TEST_LOOPING(lc); lc++) {
|
|
int i, pid;
|
|
|
|
tst_count = 0;
|
|
|
|
if ((pid = FORK_OR_VFORK()) == -1) {
|
|
tst_brkm(TBROK, cleanup, "fork failed");
|
|
} else if (pid == 0) { /* child */
|
|
|
|
for (i = 0; i < TST_TOTAL; i++) {
|
|
|
|
/* Set the real or effective user id */
|
|
TEST(SETREUID(cleanup, *test_data[i].real_uid,
|
|
*test_data[i].eff_uid));
|
|
|
|
if (TEST_RETURN != -1) {
|
|
tst_resm(TPASS, "setreuid(%d, %d) "
|
|
"succeeded as expected.",
|
|
*test_data[i].real_uid,
|
|
*test_data[i].eff_uid);
|
|
} else {
|
|
tst_resm(TFAIL, "setreuid(%d, %d) "
|
|
"did not return as expected.",
|
|
*test_data[i].real_uid,
|
|
*test_data[i].eff_uid);
|
|
}
|
|
|
|
uid_verify(test_data[i].exp_real_usr,
|
|
test_data[i].exp_eff_usr,
|
|
test_data[i].test_msg);
|
|
}
|
|
tst_exit();
|
|
} else { /* parent */
|
|
tst_record_childstatus(cleanup, pid);
|
|
}
|
|
}
|
|
cleanup();
|
|
tst_exit();
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
tst_require_root();
|
|
|
|
tst_sig(FORK, DEF_HANDLER, cleanup);
|
|
|
|
if (getpwnam("nobody") == NULL)
|
|
tst_brkm(TBROK, NULL, "nobody must be a valid user.");
|
|
|
|
root = *(getpwnam("root"));
|
|
UID16_CHECK(root.pw_uid, setreuid, cleanup);
|
|
|
|
nobody = *(getpwnam("nobody"));
|
|
UID16_CHECK(nobody.pw_uid, setreuid, cleanup);
|
|
|
|
TEST_PAUSE;
|
|
}
|
|
|
|
static void cleanup(void)
|
|
{
|
|
}
|
|
|
|
static void uid_verify(struct passwd *ru, struct passwd *eu, char *when)
|
|
{
|
|
if ((getuid() != ru->pw_uid) || (geteuid() != eu->pw_uid)) {
|
|
tst_resm(TFAIL, "ERROR: %s real uid = %d; effective uid = %d",
|
|
when, getuid(), geteuid());
|
|
tst_resm(TINFO, "Expected: real uid = %d; effective uid = %d",
|
|
ru->pw_uid, eu->pw_uid);
|
|
}
|
|
}
|