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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	: ioperm01
     20  *
     21  *    EXECUTED BY	: superuser
     22  *
     23  *    TEST TITLE	: Basic test for ioperm(2)
     24  *
     25  *    TEST CASE TOTAL	: 1
     26  *
     27  *    AUTHOR		: Subhab Biswas <subhabrata.biswas (at) wipro.com>
     28  *
     29  *    SIGNALS
     30  * 	Uses SIGUSR1 to pause before test if option set.
     31  * 	(See the parse_opts(3) man page).
     32  *
     33  *    DESCRIPTION
     34  *	This is a Phase I test for the ioperm(2) system call.
     35  *	It is intended to provide a limited exposure of the system call.
     36  *
     37  * 	Setup:
     38  * 	  Setup signal handling.
     39  *	  Test caller is superuser
     40  *	  Pause for SIGUSR1 if option specified.
     41  *
     42  * 	Test:
     43  *	 Loop if the proper options are given.
     44  * 	  Execute system call
     45  *        Check return code, if system call failed (return=-1)
     46  *              Issue FAIL message with errno.
     47  *        Otherwise, Issue PASS message.
     48  *
     49  * 	Cleanup:
     50  * 	  Print errno log and/or timing stats if options given
     51  *
     52  * USAGE:  <for command-line>
     53  * ioperm01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
     54  *			where,  -c n : Run n copies concurrently.
     55  *				-e   : Turn on errno logging.
     56  *				-h   : Show help screen
     57  *				-f   : Turn off functional testing
     58  *				-i n : Execute test n times.
     59  *				-I x : Execute test for x seconds.
     60  *				-p   : Pause for SIGUSR1 before starting
     61  *				-P x : Pause for x seconds between iterations.
     62  *				-t   : Turn on syscall timing.
     63  *
     64  ****************************************************************/
     65 
     66 char *TCID = "ioperm01";
     67 
     68 #if defined __i386__ || defined(__x86_64__)
     69 
     70 #include <errno.h>
     71 #include <unistd.h>
     72 #include <sys/io.h>
     73 
     74 #include "test.h"
     75 
     76 unsigned long io_addr;		/*kernel version dependant io start address */
     77 #define NUM_BYTES 3		/* number of bytes from start address */
     78 #define TURN_ON 1
     79 #define TURN_OFF 0
     80 #ifndef IO_BITMAP_BITS
     81 #define IO_BITMAP_BITS 1024
     82 #endif
     83 
     84 static void setup();
     85 static void cleanup();
     86 
     87 int TST_TOTAL = 1;
     88 
     89 int main(int ac, char **av)
     90 {
     91 
     92 	int lc;
     93 
     94 	tst_parse_opts(ac, av, NULL, NULL);
     95 
     96 	setup();
     97 
     98 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     99 
    100 		tst_count = 0;
    101 
    102 		/*
    103 		 * Test the system call.
    104 		 */
    105 		TEST(ioperm(io_addr, NUM_BYTES, TURN_ON));
    106 
    107 		if (TEST_RETURN == -1) {
    108 			tst_resm(TFAIL, "ioperm() failed for port address "
    109 				 "%lu,  errno=%d : %s", io_addr,
    110 				 TEST_ERRNO, strerror(TEST_ERRNO));
    111 		} else {
    112 			tst_resm(TPASS, "ioperm() passed for port "
    113 				 "address %lu, returned %lu",
    114 				 io_addr, TEST_RETURN);
    115 		}
    116 	}
    117 
    118 	/* cleanup and exit */
    119 	cleanup();
    120 	tst_exit();
    121 
    122 }
    123 
    124 /* setup() - performs all ONE TIME setup for this test */
    125 void setup(void)
    126 {
    127 	tst_require_root();
    128 
    129 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    130 
    131 	/*
    132 	 * The value of IO_BITMAP_BITS (include/asm-i386/processor.h) changed
    133 	 * from kernel 2.6.8 to permit 16-bits ioperm
    134 	 *
    135 	 * Ricky Ng-Adam, rngadam (at) yahoo.com
    136 	 * */
    137 	if (tst_kvercmp(2, 6, 8) < 0) {
    138 		/*get ioperm on 1021, 1022, 1023 */
    139 		io_addr = IO_BITMAP_BITS - NUM_BYTES;
    140 	} else {
    141 		/*get ioperm on 65533, 65534, 65535 */
    142 		io_addr = IO_BITMAP_BITS - NUM_BYTES;
    143 	}
    144 
    145 	TEST_PAUSE;
    146 
    147 }
    148 
    149 /*
    150  *cleanup() -  performs all ONE TIME cleanup for this test at
    151  *		completion or premature exit.
    152  */
    153 void cleanup(void)
    154 {
    155 
    156 	/*
    157 	 * Reset I/O privileges for the specified port.
    158 	 */
    159 	if ((ioperm(io_addr, NUM_BYTES, TURN_OFF)) == -1) {
    160 		tst_brkm(TBROK, NULL, "ioperm() cleanup failed");
    161 	}
    162 
    163 }
    164 
    165 #else /* __i386__ */
    166 
    167 #include "test.h"
    168 
    169 int TST_TOTAL = 0;
    170 
    171 int main(void)
    172 {
    173 	tst_resm(TPASS,
    174 		 "LSB v1.3 does not specify ioperm() for this architecture.");
    175 	tst_exit();
    176 }
    177 
    178 #endif /* __i386__ */
    179