[LTP] [PATCH 1/2] iopl: convert to new API
Li Wang
liwang@redhat.com
Thu Jul 9 10:52:36 CEST 2020
Signed-off-by: Li Wang <liwang@redhat.com>
Cc: Erico Nunes <ernunes@redhat.com>
---
Notes:
Erico,
-- FYI --
LTP does support two APIs in general testcase, we're now working
on the migration to new API[1] for all tests in a long term phase.
Considering you will fix the kernel lockdown problem for iopl01
and ioperm01(thanks in advance). So I helped to convert these two
tests to new APIs firstly, you can start the kernel lockdown fix
base on my patches.
[1] New APIs lib entry:
https://github.com/linux-test-project/ltp/blob/master/include/tst_test.h
https://github.com/linux-test-project/ltp/blob/master/lib/tst_test.c
[2] LTP Test Writing Guidelines:
https://github.com/linux-test-project/ltp/wiki/Test-Writing-Guidelines
testcases/kernel/syscalls/iopl/iopl01.c | 172 ++++------------
testcases/kernel/syscalls/iopl/iopl02.c | 253 ++++++------------------
2 files changed, 96 insertions(+), 329 deletions(-)
diff --git a/testcases/kernel/syscalls/iopl/iopl01.c b/testcases/kernel/syscalls/iopl/iopl01.c
index 0b1952668..f2f2851af 100644
--- a/testcases/kernel/syscalls/iopl/iopl01.c
+++ b/testcases/kernel/syscalls/iopl/iopl01.c
@@ -1,162 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * 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.
- *
+ * Copyright (c) Linux Test Project, 2020
+ * Copyright (c) Wipro Technologies Ltd, 2002
*/
-/**********************************************************
- *
- * TEST IDENTIFIER : iopl01
- *
- * EXECUTED BY : superuser
- *
- * TEST TITLE : Basic test for iopl(2)
- *
- * TEST CASE TOTAL : 4
- *
- * AUTHOR : Subhab Biswas <subhabrata.biswas@wipro.com>
- *
- * SIGNALS
- * Uses SIGUSR1 to pause before test if option set.
- * (See the parse_opts(3) man page).
- *
- * DESCRIPTION
- * This is a Phase I test for the iopl(2) system call.
- * It is intended to provide a limited exposure of the system call.
- *
- * Setup:
- * Setup signal handling.
- * Test caller is superuser
- * Pause for SIGUSR1 if option specified.
- *
- * Test:
- * Loop if the proper options are given.
- * Execute system call
- * Check return code, if system call failed (return=-1)
- * Issue FAIL message with errno.
- * Otherwise, Issue PASS message.
- *
- * Cleanup:
- * Print errno log and/or timing stats if options given
- *
- * USAGE: <for command-line>
- * iopl01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
- * where, -c n : Run n copies concurrently.
- * -e : Turn on errno logging.
- * -h : Show help screen
- * -f : Turn off functional testing
- * -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.
- *
- ****************************************************************/
-
-char *TCID = "iopl01";
-#if defined __i386__ || defined(__x86_64__)
+/*
+ * This is a basic test for iopl(2) system call.
+ * It is intended to provide a limited exposure of the system call.
+ *
+ * Author: Subhab Biswas <subhabrata.biswas@wipro.com>
+ */
#include <errno.h>
#include <unistd.h>
#include <sys/io.h>
-#include "test.h"
+#include "tst_test.h"
-static void setup();
-static void cleanup();
-
-int TST_TOTAL = 4;
-
-int level; /* I/O privilege level of the process */
+#if defined __i386__ || defined(__x86_64__)
-int main(int ac, char **av)
+static void verify_iopl(void)
{
+ int total_level = 4;
+ int level; /* I/O privilege level of the process */
- int lc;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
-
- tst_count = 0;
-
- /*
- * Test the system call for possible privelege levels.
- * As the privelge level for a normal process is 0,
- * start by setting/changing the level to 0.
- */
- for (level = 0; level < TST_TOTAL; ++level) {
+ /*
+ * Test the system call for possible privelege levels.
+ * As the privelge level for a normal process is 0,
+ * start by setting/changing the level to 0.
+ */
+ for (level = 0; level < total_level; ++level) {
- TEST(iopl(level));
+ TEST(iopl(level));
- if (TEST_RETURN == -1) {
- tst_resm(TFAIL, "iopl() failed for level %d, "
- "errno=%d : %s", level,
- TEST_ERRNO, strerror(TEST_ERRNO));
- } else {
- tst_resm(TPASS, "iopl() passed for level %d, "
- "returned %ld", level, TEST_RETURN);
- }
+ if (TST_RET == -1) {
+ tst_res(TFAIL, "iopl() failed for level %d, "
+ "errno=%d : %s", level,
+ TST_ERR, tst_strerrno(TFAIL | TTERRNO));
+ } else {
+ tst_res(TPASS, "iopl() passed for level %d, "
+ "returned %ld", level, TST_RET);
}
}
-
- /* cleanup and exit */
- cleanup();
- tst_exit();
-
-}
-
-/* setup() - performs all ONE TIME setup for this test */
-void setup(void)
-{
- tst_require_root();
-
- tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
- TEST_PAUSE;
-
}
/*
*cleanup() - performs all ONE TIME cleanup for this test at
* completion or premature exit.
*/
-void cleanup(void)
+static void cleanup(void)
{
-
/*
* back to I/O privilege for normal process.
*/
- if (iopl(0) == -1) {
- tst_resm(TWARN, "iopl() cleanup failed");
- }
-
+ if (iopl(0) == -1)
+ tst_res(TWARN, "iopl() cleanup failed");
}
-#else /* __i386__ */
-
-#include "test.h"
-
-int TST_TOTAL = 0;
-
-int main(void)
-{
- tst_resm(TPASS,
- "LSB v1.3 does not specify iopl() for this architecture.");
- tst_exit();
-}
+static struct tst_test test = {
+ .test_all = verify_iopl,
+ .needs_root = 1,
+ .cleanup = cleanup,
+};
-#endif /* __i386__ */
+#else /* __i386__, __x86_64__*/
+TST_TEST_TCONF("LSB v1.3 does not specify iopl() for this architecture. (only for i386 or x86_64)");
+#endif /* __i386_, __x86_64__*/
diff --git a/testcases/kernel/syscalls/iopl/iopl02.c b/testcases/kernel/syscalls/iopl/iopl02.c
index 35d239268..747a1ca56 100644
--- a/testcases/kernel/syscalls/iopl/iopl02.c
+++ b/testcases/kernel/syscalls/iopl/iopl02.c
@@ -1,221 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * 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.
- *
+ * Copyright (c) Linux Test Project, 2020
+ * Copyright (c) Wipro Technologies Ltd, 2002
*/
-/**********************************************************
- *
- * TEST IDENTIFIER : iopl02
- *
- * EXECUTED BY : superuser
- *
- * TEST TITLE : Tests for error conditions
- *
- * TEST CASE TOTAL : 2
- *
- * AUTHOR : Subhab Biwas <subhabrata.biswas@wipro.com>
- *
- * SIGNALS
- * Uses SIGUSR1 to pause before test if option set.
- * (See the parse_opts(3) man page).
- *
- * DESCRIPTION
- * Verify that
- * 1) iopl(2) returns -1 and sets errno to EINVAL for privilege
- * level greater than 3.
- * 2) iopl(2) returns -1 and sets errno to EPERM if the current
- * user is not the super-user.
- *
- * Setup:
- * Setup signal handling.
- * Test caller is superuser
- * Set expected errnos for logging
- * Pause for SIGUSR1 if option specified.
- *
- * Test:
- * Loop if the proper options are given.
- * Execute system call
- * Check return code and error number, if matching,
- * Issue PASS message
- * Otherwise,
- * Issue FAIL message
- * Perform testcase specific cleanup (if needed)
- *
- * Cleanup:
- * Print errno log and/or timing stats if options given
+
+/*
+ * This is an error test for iopl(2) system call.
*
- * USAGE: <for command-line>
- * iopl02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
- * where, -c n : Run n copies concurrently.
- * -e : Turn on errno logging.
- * -h : Show help screen
- * -f : Turn off functional testing
- * -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.
+ * Verify that
+ * 1) iopl(2) returns -1 and sets errno to EINVAL for privilege
+ * level greater than 3.
+ * 2) iopl(2) returns -1 and sets errno to EPERM if the current
+ * user is not the super-user.
*
- ****************************************************************/
-
-char *TCID = "iopl02";
-
-#if defined __i386__ || defined(__x86_64__)
+ * Author: Subhab Biswas <subhabrata.biswas@wipro.com>
+ */
#include <errno.h>
#include <unistd.h>
#include <sys/io.h>
#include <pwd.h>
-#include "test.h"
-#include "safe_macros.h"
+#include "tst_test.h"
+#include "tst_safe_macros.h"
+
+#if defined __i386__ || defined(__x86_64__)
#define INVALID_LEVEL 4 /* Invalid privilege level */
#define EXP_RET_VAL -1
-static void setup();
-static int setup1(void);
-static void cleanup1();
-static void cleanup();
-
-static char nobody_uid[] = "nobody";
-struct passwd *ltpuser;
-
-struct test_cases_t {
- int level; /* I/O privilege level */
- char *desc; /* test case description */
- int exp_errno; /* expected error number */
-} test_cases[] = {
- {
- INVALID_LEVEL, "Invalid privilege level", EINVAL}, {
- 1, "Non super-user", EPERM}
+static struct tcase {
+ int level; /* I/O privilege level */
+ char *desc; /* test case description */
+ int exp_errno; /* expected error number */
+} tcases[] = {
+ {INVALID_LEVEL, "Invalid privilege level", EINVAL},
+ {1, "Non super-user", EPERM}
};
-int TST_TOTAL = sizeof(test_cases) / sizeof(test_cases[0]);
-
-int main(int ac, char **av)
+static void verify_iopl(unsigned int i)
{
-
- int lc, i;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
-
- tst_count = 0;
-
- for (i = 0; i < TST_TOTAL; ++i) {
-
- if (i == 1) {
- /* setup Non super-user for second test */
- if (setup1()) {
- /* setup1() failed, skip this test */
- continue;
- }
- }
-
- /*
- * Call iopl(2)
- */
- TEST(iopl(test_cases[i].level));
-
- if ((TEST_RETURN == EXP_RET_VAL) &&
- (TEST_ERRNO == test_cases[i].exp_errno)) {
- tst_resm(TPASS, "Expected failure for %s, "
- "errno: %d", test_cases[i].desc,
- TEST_ERRNO);
- } else {
- tst_resm(TFAIL, "Unexpected results for %s ; "
- "returned %ld (expected %d), errno %d "
- "(expected errno %d)",
- test_cases[i].desc,
- TEST_RETURN, EXP_RET_VAL,
- TEST_ERRNO, test_cases[i].exp_errno);
- }
-
- if (i == 1) {
- /* revert back to super user */
- cleanup1();
- }
-
+ if (i == 1) {
+ /* setup Non super-user for second test */
+ struct passwd *pw;
+ pw = SAFE_GETPWNAM("nobody");
+ if (seteuid(pw->pw_uid) == -1) {
+ tst_res(TWARN, "Failed to set effective"
+ "uid to %d", pw->pw_uid);
+ return;
}
}
- /* cleanup and exit */
- cleanup();
-
- tst_exit();
-
-}
-
-/* setup1() - set up non-super user for second test case */
-int setup1(void)
-{
- /* switch to "nobody" user */
- if (seteuid(ltpuser->pw_uid) == -1) {
- tst_resm(TWARN, "Failed to set effective"
- "uid to %d", ltpuser->pw_uid);
- return 1;
+ TEST(iopl(tcases[i].level));
+
+ if ((TST_RET == EXP_RET_VAL) && (TST_ERR == tcases[i].exp_errno)) {
+ tst_res(TPASS, "Expected failure for %s, "
+ "errno: %d", tcases[i].desc,
+ TST_ERR);
+ } else {
+ tst_res(TFAIL, "Unexpected results for %s ; "
+ "returned %ld (expected %d), errno %d "
+ "(expected errno %d)",
+ tcases[i].desc,
+ TST_RET, EXP_RET_VAL,
+ TST_ERR, tcases[i].exp_errno);
}
- return 0;
-}
-
-/* cleanup1() - reset to super user for first test case */
-void cleanup1(void)
-{
- /* reset user as root */
- SAFE_SETEUID(NULL, 0);
-}
-
-/* setup() - performs all ONE TIME setup for this test */
-void setup(void)
-{
- tst_require_root();
- tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
- /* Check if "nobody" user id exists */
- if ((ltpuser = getpwnam(nobody_uid)) == NULL) {
- tst_brkm(TBROK, NULL, "\"nobody\" user id doesn't exist");
+ if (i == 1) {
+ /* revert back to super user */
+ SAFE_SETEUID(0);
}
-
- TEST_PAUSE;
-
}
-/*
- *cleanup() - performs all ONE TIME cleanup for this test at
- * completion or premature exit.
- */
-void cleanup(void)
-{
-
-}
-
-#else /* __i386__ */
-
-#include "test.h"
-#include "safe_macros.h"
-
-int TST_TOTAL = 0;
-
-int main(void)
-{
- tst_resm(TPASS,
- "LSB v1.3 does not specify iopl() for this architecture.");
- tst_exit();
-}
+static struct tst_test test = {
+ .tcnt = ARRAY_SIZE(tcases),
+ .test = verify_iopl,
+ .needs_root = 1,
+};
-#endif /* __i386__ */
+#else /* __i386__, __x86_64__*/
+TST_TEST_TCONF("LSB v1.3 does not specify iopl() for this architecture. (only for i386 or x86_64)");
+#endif /* __i386_, __x86_64__*/
--
2.21.1
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