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      1 /*
      2  * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
      3  *
      4  * This program is free software; you can redistribute it and/or modify it
      5  * under the terms of version 2 of the GNU General Public License as
      6  * published by the Free Software Foundation.
      7  *
      8  * This program is distributed in the hope that it would be useful, but
      9  * WITHOUT ANY WARRANTY; without even the implied warranty of
     10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
     11  *
     12  * You should have received a copy of the GNU General Public License along
     13  * with this program; if not, write the Free Software Foundation, Inc.,
     14  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
     15  *
     16  */
     17 /**************************************************************************
     18  *
     19  *    TEST IDENTIFIER	: sysfs(2)
     20  *
     21  *
     22  *    EXECUTED BY	: anyone
     23  *
     24  *    TEST TITLE	: Test checking for basic error conditions
     25  *				 for sysfs(2)
     26  *
     27  *    TEST CASE TOTAL	: 3
     28  *
     29  *    AUTHOR		: Aniruddha Marathe <aniruddha.marathe (at) wipro.com>
     30  *
     31  *    SIGNALS
     32  *	Uses SIGUSR1 to pause before test if option set.
     33  *	(See the parse_opts(3) man page).
     34  *
     35  *    DESCRIPTION
     36  *	This test case checks whether sysfs(2) system call returns
     37  *	appropriate error number for invalid
     38  *	option and for invalid filesystem name.
     39  *
     40  *	Setup:
     41  *	  Setup signal handling.
     42  *	  Pause for SIGUSR1 if option specified.
     43  *
     44  *	Test:
     45  *	  Loop if the proper options are given.
     46  *	  Execute system call with invaid option parameter and for
     47  *	  invalid filesystem name
     48  *	  Check return code, if system call fails with errno == expected errno
     49  *		Issue syscall passed with expected errno
     50  *	  Otherwise,
     51  *	  Issue syscall failed to produce expected errno
     52  *
     53  *	Cleanup:
     54  *	  Do cleanup for the test.
     55  *
     56  * USAGE:  <for command-line>
     57  *  sysfs05 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-f] [-h] [-p]
     58  *  where:
     59  *	-c n : Run n copies simultaneously
     60  *	-e   : Turn on errno logging.
     61  *	-i n : Execute test n times.
     62  *	-I x : Execute test for x seconds.
     63  *	-p   : Pause for SIGUSR1 before starting
     64  *	-P x : Pause for x seconds between iterations.
     65  *	-t   : Turn on syscall timing.
     66  *
     67  *RESTRICTIONS:
     68  *There is no libc or glibc support
     69  *Kernel must be compiled with ext2 support
     70  *****************************************************************************/
     71 
     72 #include <errno.h>
     73 #include <syscall.h>
     74 #include "test.h"
     75 #include "linux_syscall_numbers.h"
     76 
     77 static void setup();
     78 static void cleanup();
     79 
     80 char *TCID = "sysfs05";
     81 static int option[3] = { 1, 4, 1 };	/* valid and invalid option */
     82 static char *fsname[] = { "ext0", " ext2", (char *)-1 };
     83 
     84 static struct test_case_t {
     85 	char *err_desc;		/*error description */
     86 	int exp_errno;		/* expected error number */
     87 	char *exp_errval;	/*Expected errorvalue string */
     88 } testcase[] = {
     89 	{
     90 	"Invalid option", EINVAL, "EINVAL"}, {
     91 	"Invalid filesystem name", EINVAL, "EINVAL "}, {
     92 	"Address is out of your address space", EFAULT, "EFAULT "}
     93 };
     94 
     95 int TST_TOTAL = ARRAY_SIZE(testcase);
     96 
     97 int main(int ac, char **av)
     98 {
     99 	int lc, i;
    100 
    101 	tst_parse_opts(ac, av, NULL, NULL);
    102 
    103 	setup();
    104 
    105 	for (lc = 0; TEST_LOOPING(lc); lc++) {
    106 
    107 		for (i = 0; i < TST_TOTAL; i++) {
    108 
    109 			tst_count = 0;
    110 			TEST(ltp_syscall(__NR_sysfs, option[i], fsname[i]));
    111 
    112 			/* check return code */
    113 			if ((TEST_RETURN == -1)
    114 			    && (TEST_ERRNO == testcase[i].exp_errno)) {
    115 				tst_resm(TPASS,
    116 					 "sysfs(2) expected failure;"
    117 					 " Got errno - %s : %s",
    118 					 testcase[i].exp_errval,
    119 					 testcase[i].err_desc);
    120 			} else {
    121 				tst_resm(TFAIL, "sysfs(2) failed to produce"
    122 					 " expected error; %d, errno"
    123 					 ": %s and got %d",
    124 					 testcase[i].exp_errno,
    125 					 testcase[i].exp_errval, TEST_ERRNO);
    126 			}
    127 
    128 		}		/*End of TEST LOOPS */
    129 	}
    130 
    131 	/*Clean up and exit */
    132 	cleanup();
    133 
    134 	tst_exit();
    135 }				/*End of main */
    136 
    137 /* setup() - performs all ONE TIME setup for this test */
    138 void setup(void)
    139 {
    140 
    141 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    142 
    143 	TEST_PAUSE;
    144 }
    145 
    146 /*
    147 * cleanup() - Performs one time cleanup for this test at
    148 * completion or premature exit
    149 */
    150 void cleanup(void)
    151 {
    152 
    153 }
    154