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163 lines
3.7 KiB
163 lines
3.7 KiB
/*
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* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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/**********************************************************
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*
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* TEST IDENTIFIER : iopl01
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*
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* EXECUTED BY : superuser
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*
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* TEST TITLE : Basic test for iopl(2)
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*
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* TEST CASE TOTAL : 4
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*
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* AUTHOR : Subhab Biswas <subhabrata.biswas@wipro.com>
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*
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* SIGNALS
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* Uses SIGUSR1 to pause before test if option set.
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* (See the parse_opts(3) man page).
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*
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* DESCRIPTION
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* This is a Phase I test for the iopl(2) system call.
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* It is intended to provide a limited exposure of the system call.
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*
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* Setup:
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* Setup signal handling.
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* Test caller is superuser
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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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* Issue FAIL message with errno.
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* Otherwise, Issue PASS message.
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*
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* Cleanup:
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* Print errno log and/or timing stats if options given
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*
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* USAGE: <for command-line>
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* iopl01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -h : Show help screen
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* -f : Turn off functional 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 : Pause for SIGUSR1 before starting
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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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****************************************************************/
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char *TCID = "iopl01";
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#if defined __i386__ || defined(__x86_64__)
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#include <errno.h>
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#include <unistd.h>
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#include <sys/io.h>
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#include "test.h"
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static void setup();
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static void cleanup();
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int TST_TOTAL = 4;
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int level; /* I/O privilege level of the process */
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int main(int ac, char **av)
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{
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int lc;
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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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/*
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* Test the system call for possible privelege levels.
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* As the privelge level for a normal process is 0,
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* start by setting/changing the level to 0.
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*/
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for (level = 0; level < TST_TOTAL; ++level) {
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TEST(iopl(level));
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if (TEST_RETURN == -1) {
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tst_resm(TFAIL, "iopl() failed for level %d, "
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"errno=%d : %s", level,
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TEST_ERRNO, strerror(TEST_ERRNO));
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} else {
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tst_resm(TPASS, "iopl() passed for level %d, "
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"returned %ld", level, TEST_RETURN);
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}
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}
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}
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/* cleanup and exit */
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cleanup();
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tst_exit();
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}
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/* setup() - performs all ONE TIME setup for this test */
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void setup(void)
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{
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tst_require_root();
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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}
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/*
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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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*/
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void cleanup(void)
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{
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/*
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* back to I/O privilege for normal process.
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*/
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if (iopl(0) == -1) {
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tst_resm(TWARN, "iopl() cleanup failed");
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}
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}
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#else /* __i386__ */
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#include "test.h"
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int TST_TOTAL = 0;
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int main(void)
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{
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tst_resm(TPASS,
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"LSB v1.3 does not specify iopl() for this architecture.");
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tst_exit();
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}
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#endif /* __i386__ */
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