284 lines
7.3 KiB
C
284 lines
7.3 KiB
C
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/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Test Name: chown02
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*
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* Test Description:
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* Verify that, when chown(2) invoked by super-user to change the owner and
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* group of a file specified by path to any numeric owner(uid)/group(gid)
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* values,
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* - clears setuid and setgid bits set on an executable file.
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* - preserves setgid bit set on a non-group-executable file.
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*
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* Expected Result:
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* chown(2) should return 0 and the ownership set on the file should match
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* the numeric values contained in owner and group respectively.
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*
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* Algorithm:
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* Setup:
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* Setup signal handling.
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* Create temporary directory.
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* Pause for SIGUSR1 if option specified.
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call failed (return=-1)
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* Log the errno and Issue a FAIL message.
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* Otherwise,
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* Verify the Functionality of system call
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* if successful,
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* Issue Functionality-Pass message.
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* Otherwise,
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* Issue Functionality-Fail message.
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* Cleanup:
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* Print errno log and/or timing stats if options given
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* Delete the temporary directory created.
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*
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* Usage: <for command-line>
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* chown02 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -f : Turn off functionality Testing.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS:
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* This test should be run by 'super-user' (root) only.
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*
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <signal.h>
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#include "test.h"
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#include "safe_macros.h"
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#include "compat_16.h"
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#define FILE_MODE (S_IFREG|S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)
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#define NEW_PERMS1 (S_IFREG|S_IRWXU|S_IRWXG|S_ISUID|S_ISGID)
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#define NEW_PERMS2 (S_IFREG|S_IRWXU|S_ISGID)
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#define EXP_PERMS (S_IFREG|S_IRWXU|S_IRWXG)
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#define TESTFILE1 "testfile1"
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#define TESTFILE2 "testfile2"
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TCID_DEFINE(chown02);
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int setup1(); /* Test specific setup functions */
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int setup2();
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struct test_case_t {
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char *pathname;
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uid_t user_id;
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gid_t group_id;
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int test_flag;
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int (*setupfunc) ();
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} test_cases[] = {
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/* setuid/setgid bits cleared */
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{
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TESTFILE1, 700, 701, 1, setup1},
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/* setgid bit not cleared */
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{
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TESTFILE2, 700, 701, 2, setup2},};
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int TST_TOTAL = ARRAY_SIZE(test_cases);
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void setup(); /* setup function for the test */
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void cleanup(); /* cleanup function for the test */
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int main(int ac, char **av)
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{
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struct stat stat_buf; /* stat(2) struct contents */
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int lc;
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int i;
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uid_t user_id; /* user id of the user set for testfile */
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gid_t group_id; /* group id of the user set for testfile */
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int test_flag; /* test condition specific flag variable */
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char *file_name; /* ptr. for test file name */
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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for (i = 0; i < TST_TOTAL; i++) {
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file_name = test_cases[i].pathname;
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user_id = test_cases[i].user_id;
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group_id = test_cases[i].group_id;
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test_flag = test_cases[i].test_flag;
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/*
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* Call chown(2) with different user id and
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* group id (numeric values) to set it on testfile.
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*/
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TEST(CHOWN(cleanup, file_name, user_id, group_id));
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL | TTERRNO,
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"chown(%s, ..) failed", file_name);
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continue;
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}
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/*
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* Get the testfile information using stat(2).
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*/
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if (stat(file_name, &stat_buf) < 0) {
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tst_brkm(TFAIL, cleanup, "stat(2) of "
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"%s failed, errno:%d",
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file_name, TEST_ERRNO);
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}
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/*
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* Check for expected Ownership ids
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* set on testfile.
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*/
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if (stat_buf.st_uid != user_id ||
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stat_buf.st_gid != group_id) {
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tst_brkm(TFAIL, cleanup, "%s: incorrect"
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" ownership set, Expected %d "
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"%d", file_name,
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user_id, group_id);
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}
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/*
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* Verify that S_ISUID/S_ISGID bits set on the
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* testfile(s) in setup()s are cleared by
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* chown().
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*/
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if (test_flag == 1 &&
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(stat_buf.st_mode & (S_ISUID | S_ISGID)) != 0) {
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tst_resm(TFAIL,
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"%s: incorrect mode "
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"permissions %#o, Expected "
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"%#o", file_name, NEW_PERMS1,
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EXP_PERMS);
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} else if (test_flag == 2
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&& (stat_buf.st_mode & S_ISGID) == 0) {
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tst_resm(TFAIL,
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"%s: Incorrect mode "
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"permissions %#o, Expected "
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"%#o", file_name,
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stat_buf.st_mode, NEW_PERMS2);
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} else {
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tst_resm(TPASS,
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"chown(%s, ..) succeeded",
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file_name);
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}
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}
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}
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cleanup();
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tst_exit();
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}
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/*
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* void
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* setup() - performs all ONE TIME setup for this test.
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* Create a temporary directory and change directory to it.
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* Create a test file under temporary directory and close it
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*/
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void setup(void)
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{
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int i;
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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tst_require_root();
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TEST_PAUSE;
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tst_tmpdir();
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/* call iividual setup functions */
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for (i = 0; i < TST_TOTAL; i++)
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test_cases[i].setupfunc();
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}
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/*
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* int
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* setup1() - Setup function for chown(2) to verify setuid/setgid bits
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* set on an executable file will not be cleared.
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* Creat a testfile and set setuid/setgid bits on the mode of file.$
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*/
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int setup1(void)
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{
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int fd; /* File descriptor for testfile1 */
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/* Creat a testfile and close it */
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if ((fd = open(TESTFILE1, O_RDWR | O_CREAT, FILE_MODE)) == -1)
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tst_brkm(TBROK | TERRNO, cleanup,
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"open(%s, O_RDWR|O_CREAT, %o) failed",
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TESTFILE1, FILE_MODE);
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SAFE_CLOSE(cleanup, fd);
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/* Set setuid/setgid bits on the test file created */
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SAFE_CHMOD(cleanup, TESTFILE1, NEW_PERMS1);
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return 0;
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}
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/*
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* int
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* setup2() - Setup function for chown(2) to verify setgid bit set
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* set on non-group executable file will not be cleared.
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* Creat a testfile and set setgid bit on the mode of file.
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*/
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int setup2(void)
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{
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int fd; /* File descriptor for testfile2 */
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/* Creat a testfile and close it */
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if ((fd = open(TESTFILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK | TERRNO, cleanup,
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"open(%s, O_RDWR|O_CREAT, %o) failed",
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TESTFILE2, FILE_MODE);
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}
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/* Set setgid bit on the test file created */
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if (fchmod(fd, NEW_PERMS2) != 0)
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tst_brkm(TBROK | TERRNO, cleanup, "fchmod failed");
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SAFE_CLOSE(cleanup, fd);
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return 0;
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}
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/*
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* void
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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* Remove the test directory and testfile created in the setup.
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*/
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void cleanup(void)
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{
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tst_rmdir();
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}
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