/*
* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
/**********************************************************
*
* TEST IDENTIFIER : setresgid02
*
* EXECUTED BY : root / superuser
*
* TEST TITLE : Checking functionality of setresgid(2) for
* non-root group id.
*
* TEST CASE TOTAL : 6
*
* AUTHOR : Madhu T L <madhu.tarikere@wipro.com>
*
* SIGNALS
* Uses SIGUSR1 to pause before test if option set.
* (See the parse_opts(3) man page).
*
* DESCRIPTION
* Verify that for non-root effective group id,
* 1. setresgid(2) is successful for setresgid(-1, -1, -1)
* 2. setresgid(2) is successful for setresgid(-1, -1, bin)
* 3. setresgid(2) is successful for setresgid(-1, bin, -1)
* 4. setresgid(2) is successful for setresgid(bin, -1, -1)
* 5. setresgid(2) is successful for setresgid(root, root, root)
* 6. setresgid(2) is successful for setresgid(root, nobody, nobody)
*
* Setup:
* Setup signal handling.
* Test caller is superuser
* Check existence of root, bin and nobody user id's
* Pause for SIGUSR1 if option specified.
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return value and functionality, if success,
* Issue PASS message
* Otherwise,
* Issue FAIL message
*
* Cleanup:
* Print errno log and/or timing stats if options given
*
* USAGE: <for command-line>
* setresgid02 [-c n] [-e] [-f] [-h] [-i n] [-I x] [-p] [-P x] [-t]
* where, -c n : Run n copies concurrently.
* -e : Turn on errno logging.
* -f : Turn off functional testing
* -h : Show help screen
* -i n : Execute test n times.
* -I x : Execute test for x seconds.
* -p : Pause for SIGUSR1 before starting
* -P x : Pause for x seconds between iterations.
* -t : Turn on syscall timing.
*
* CHANGE: Madhu T L <madhu.tarikere@wipro.com>
* Date: April 9 2003
* Replaced setegid() by setresgid() in setup()
****************************************************************/
#define _GNU_SOURCE 1
#include <errno.h>
#include <pwd.h>
#include <sys/types.h>
#include <unistd.h>
#include "test.h"
#include "safe_macros.h"
#include "compat_16.h"
#define EXP_RET_VAL 0
struct test_case_t { /* test case structure */
uid_t *rgid; /* real GID */
uid_t *egid; /* effective GID */
uid_t *sgid; /* saved GID */
struct passwd *exp_rgid; /* Expected real GID */
struct passwd *exp_egid; /* Expected effective GID */
struct passwd *exp_sgid; /* Expected saved GID */
char *desc; /* Test description */
};
TCID_DEFINE(setresgid02);
static int testno;
static struct passwd nobody, bin, root;
static uid_t nobody_gid, root_gid, bin_gid, neg = -1;
static int test_functionality(uid_t, uid_t, uid_t);
static void setup(void);
static void cleanup(void);
/* Don't change order of these test cases */
static struct test_case_t tdat[] = {
{&neg, &neg, &neg, &root, &nobody, &nobody,
"setresgid(-1, -1, -1)"},
{&neg, &neg, &bin.pw_gid, &root, &nobody, &bin,
"setresgid(-1, -1, bin)"},
{&neg, &bin.pw_gid, &neg, &root, &bin, &bin,
"setresgid(-1, bin, -1)"},
{&bin.pw_gid, &neg, &neg, &bin, &bin, &bin,
"setresgid(bin, -1, -1)"},
{&root.pw_gid, &root.pw_gid, &root.pw_gid, &root, &root, &root,
"setresgid(root, root, root)"},
{&root.pw_gid, &nobody.pw_gid, &nobody.pw_gid, &root, &nobody, &nobody,
"setresgid(root, nobody, nobody)"},
};
int TST_TOTAL = sizeof(tdat) / sizeof(tdat[0]);
int main(int argc, char **argv)
{
int lc;
tst_parse_opts(argc, argv, NULL, NULL);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
/* reset tst_count in case we are looping */
tst_count = 0;
for (testno = 0; testno < TST_TOTAL; ++testno) {
TEST(SETRESGID(cleanup, *tdat[testno].rgid, *tdat[testno].egid,
*tdat[testno].sgid));
if (TEST_RETURN == EXP_RET_VAL) {
if (!test_functionality
(tdat[testno].exp_rgid->pw_gid,
tdat[testno].exp_egid->pw_gid,
tdat[testno].exp_sgid->pw_gid)) {
tst_resm(TPASS, "Test for %s "
"successful",
tdat[testno].desc);
} else {
tst_resm(TFAIL, "Functionality test "
"for %s failed",
tdat[testno].desc);
}
} else {
tst_resm(TFAIL, "Test for %s failed; returned"
" %ld (expected %d), errno %d (expected"
" 0)", tdat[testno].desc,
TEST_RETURN, EXP_RET_VAL, TEST_ERRNO);
}
}
}
cleanup();
tst_exit();
}
static int test_functionality(uid_t exp_rgid, uid_t exp_egid, uid_t exp_sgid)
{
uid_t cur_rgid, cur_egid, cur_sgid;
/* Get current real, effective and saved group id */
SAFE_GETRESGID(cleanup, &cur_rgid, &cur_egid, &cur_sgid);
if ((cur_rgid == exp_rgid) && (cur_egid == exp_egid)
&& (cur_sgid == exp_sgid)) {
return 0;
}
return 1;
}
/*
* setup()
* performs all ONE TIME setup for this test
*/
void setup(void)
{
struct passwd *passwd_p;
tst_require_root();
tst_sig(NOFORK, DEF_HANDLER, cleanup);
if ((passwd_p = getpwnam("root")) == NULL) {
tst_brkm(TBROK, NULL, "getpwnam() failed for root");
}
root = *passwd_p;
GID16_CHECK((root_gid = root.pw_gid), "setresgid", cleanup)
if ((passwd_p = getpwnam("bin")) == NULL) {
tst_brkm(TBROK, NULL, "bin user id doesn't exist");
}
bin = *passwd_p;
GID16_CHECK((bin_gid = bin.pw_gid), "setresgid", cleanup)
if ((passwd_p = getpwnam("nobody")) == NULL) {
tst_brkm(TBROK, NULL, "nobody user id doesn't exist");
}
nobody = *passwd_p;
GID16_CHECK((nobody_gid = nobody.pw_gid), "setresgid", cleanup)
/* Set effective/saved gid to nobody */
if (setresgid(-1, nobody_gid, nobody_gid) == -1) {
tst_brkm(TBROK, NULL, "setup() failed for setting while"
" setting real/effective/saved 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)
{
}