/*
*
* 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: chown02
*
* Test Description:
* Verify that, when chown(2) invoked by super-user to change the owner and
* group of a file specified by path 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:
* 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>
* chown02 [-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 <fcntl.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include "test.h"
#include "safe_macros.h"
#include "compat_16.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"
TCID_DEFINE(chown02);
int setup1(); /* Test specific setup functions */
int setup2();
struct test_case_t {
char *pathname;
uid_t user_id;
gid_t group_id;
int test_flag;
int (*setupfunc) ();
} test_cases[] = {
/* setuid/setgid bits cleared */
{
TESTFILE1, 700, 701, 1, setup1},
/* setgid bit not cleared */
{
TESTFILE2, 700, 701, 2, setup2},};
int TST_TOTAL = ARRAY_SIZE(test_cases);
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;
int i;
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 test_flag; /* test condition specific flag variable */
char *file_name; /* ptr. for test file name */
tst_parse_opts(ac, av, NULL, NULL);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
for (i = 0; i < TST_TOTAL; i++) {
file_name = test_cases[i].pathname;
user_id = test_cases[i].user_id;
group_id = test_cases[i].group_id;
test_flag = test_cases[i].test_flag;
/*
* Call chown(2) with different user id and
* group id (numeric values) to set it on testfile.
*/
TEST(CHOWN(cleanup, file_name, user_id, group_id));
if (TEST_RETURN == -1) {
tst_resm(TFAIL | TTERRNO,
"chown(%s, ..) failed", file_name);
continue;
}
/*
* Get the testfile information using stat(2).
*/
if (stat(file_name, &stat_buf) < 0) {
tst_brkm(TFAIL, cleanup, "stat(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_brkm(TFAIL, cleanup, "%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)) != 0) {
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) == 0) {
tst_resm(TFAIL,
"%s: Incorrect mode "
"permissions %#o, Expected "
"%#o", file_name,
stat_buf.st_mode, NEW_PERMS2);
} else {
tst_resm(TPASS,
"chown(%s, ..) succeeded",
file_name);
}
}
}
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
*/
void setup(void)
{
int i;
tst_sig(NOFORK, DEF_HANDLER, cleanup);
tst_require_root();
TEST_PAUSE;
tst_tmpdir();
/* call iividual setup functions */
for (i = 0; i < TST_TOTAL; i++)
test_cases[i].setupfunc();
}
/*
* int
* setup1() - Setup function for chown(2) to verify setuid/setgid bits
* set on an executable file will not be cleared.
* Creat a testfile and set setuid/setgid bits on the mode of file.$
*/
int setup1(void)
{
int fd; /* File descriptor for testfile1 */
/* Creat a testfile and close it */
if ((fd = open(TESTFILE1, O_RDWR | O_CREAT, FILE_MODE)) == -1)
tst_brkm(TBROK | TERRNO, cleanup,
"open(%s, O_RDWR|O_CREAT, %o) failed",
TESTFILE1, FILE_MODE);
SAFE_CLOSE(cleanup, fd);
/* Set setuid/setgid bits on the test file created */
SAFE_CHMOD(cleanup, TESTFILE1, NEW_PERMS1);
return 0;
}
/*
* int
* setup2() - Setup function for chown(2) to verify setgid bit set
* set on non-group executable file will not be cleared.
* Creat a testfile and set setgid bit on the mode of file.
*/
int setup2(void)
{
int fd; /* File descriptor for testfile2 */
/* Creat a testfile and close it */
if ((fd = open(TESTFILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
tst_brkm(TBROK | TERRNO, cleanup,
"open(%s, O_RDWR|O_CREAT, %o) failed",
TESTFILE2, FILE_MODE);
}
/* Set setgid bit on the test file created */
if (fchmod(fd, NEW_PERMS2) != 0)
tst_brkm(TBROK | TERRNO, cleanup, "fchmod failed");
SAFE_CLOSE(cleanup, fd);
return 0;
}
/*
* void
* cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
* Remove the test directory and testfile created in the setup.
*/
void cleanup(void)
{
tst_rmdir();
}