@@ -10,7 +10,7 @@ shmctl05: LDLIBS += -lrt
include $(top_srcdir)/include/mk/testcases.mk
-shmctl01 shmctl02 shmctl03 shmctl04 shmctl05: LTPLDLIBS = -lltpipc
-shmctl06: LTPLDLIBS = -lltpnewipc
+shmctl01 shmctl03 shmctl04 shmctl05: LTPLDLIBS = -lltpipc
+shmctl02 shmctl06: LTPLDLIBS = -lltpnewipc
include $(top_srcdir)/include/mk/generic_leaf_target.mk
@@ -1,213 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
+ * Copyright (c) International Business Machines Corp., 2001
+ * 03/2001 - Written by Wayne Boyer
*
- * Copyright (c) International Business Machines Corp., 2001
+ * Copyright (c) 2008 Renaud Lottiaux (Renaud.Lottiaux@kerlabs.com)
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Copyright (C) 2020 Cyril Hrubis <chrubis@suse.cz>
*/
/*
- * NAME
- * shmctl02.c
- *
- * DESCRIPTION
- * shmctl02 - check for EACCES, EFAULT and EINVAL errors
- *
- * ALGORITHM
- * create a shared memory segment without read or write permissions
- * create a shared memory segment with read & write permissions
- * loop if that option was specified
- * call shmctl() using five different invalid cases
- * check the errno value
- * issue a PASS message if we get EACCES, EFAULT or EINVAL
- * otherwise, the tests fails
- * issue a FAIL message
- * call cleanup
- *
- * USAGE: <for command-line>
- * shmctl02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
- * where, -c n : Run n copies concurrently.
- * -e : Turn on errno logging.
- * -i n : Execute test n times.
- * -I x : Execute test for x seconds.
- * -P x : Pause for x seconds between iterations.
- * -t : Turn on syscall timing.
- *
- * HISTORY
- * 03/2001 - Written by Wayne Boyer
+ * Test for EACCES, EFAULT and EINVAL errors.
*
- * 06/03/2008 Renaud Lottiaux (Renaud.Lottiaux@kerlabs.com)
- * - Fix concurrency issue. The second key used for this test could
- * conflict with the key from another task.
+ * * EACCES - segment has no read or write permissions
+ * * EFAULT - IPC_SET & buf isn't valid
+ * * EFAULT - IPC_STAT & buf isn't valid
+ * * EINVAL - the command is not valid
+ * * EINVAL - the shmid is not valid
+ * * EINVAL - the shmid belongs to removed shm
*
- * RESTRICTIONS
- * none
+ * * EACCES - attempt to stat root-owned shm
+ * * EPERM - attempt to delete root-owned shm
+ * * EPERM - attempt to change root-owned shm
+ * * EPERM - attempt to lock root-owned shm
+ * * EPERM - attempt to unlock root-owned shm
*/
-#include "ipcshm.h"
#include <pwd.h>
-char *TCID = "shmctl02";
-char nobody_uid[] = "nobody";
-struct passwd *ltpuser;
+#include "tst_test.h"
+#include "tst_safe_sysv_ipc.h"
+#include "libnewipc.h"
-int shm_id_1 = -1;
-int shm_id_2 = -1;
-int shm_id_3 = -1;
+#define SHM_SIZE 2048
-struct shmid_ds buf;
+static int shm_id1 = -1;
+static int shm_id2 = -1;
+static int shm_id3 = -1;
+static int shm_bad = -1;
+static int shm_rem;
-struct test_case_t {
- int *shmid;
+static struct shmid_ds buf;
+
+static struct tcase {
+ int *shm_id;
int cmd;
- struct shmid_ds *sbuf;
+ struct shmid_ds *buf;
int error;
-} TC[] = {
- /* EACCES - segment has no read or write permissions */
- {
- &shm_id_1, IPC_STAT, &buf, EACCES},
- /* EFAULT - IPC_SET & buf isn't valid */
- {
- &shm_id_2, IPC_SET, (struct shmid_ds *)-1, EFAULT},
- /* EFAULT - IPC_STAT & buf isn't valid */
- {
- &shm_id_2, IPC_STAT, (struct shmid_ds *)-1, EFAULT},
- /* EINVAL - the shmid is not valid */
- {
- &shm_id_3, IPC_STAT, &buf, EINVAL},
- /* EINVAL - the command is not valid */
- {
- &shm_id_2, -1, &buf, EINVAL},
- /* EPERM - the command is only valid for the super-user */
- {
- &shm_id_2, SHM_LOCK, &buf, EPERM},
- /* EPERM - the command is only valid for the super-user */
- {
- &shm_id_2, SHM_UNLOCK, &buf, EPERM}
+} tc[] = {
+ {&shm_id1, IPC_STAT, &buf, EACCES},
+ {&shm_id2, IPC_SET, (struct shmid_ds *)-1, EFAULT},
+ {&shm_id2, IPC_STAT, (struct shmid_ds *)-1, EFAULT},
+ {&shm_id2, -1, &buf, EINVAL},
+ {&shm_bad, IPC_STAT, &buf, EINVAL},
+ {&shm_rem, IPC_STAT, &buf, EINVAL},
+ /* Operations on root-owned shm */
+ {&shm_id3, IPC_STAT, &buf, EACCES},
+ {&shm_id3, IPC_RMID, NULL, EPERM},
+ {&shm_id3, IPC_SET, &buf, EPERM},
+ {&shm_id3, SHM_LOCK, &buf, EPERM},
+ {&shm_id3, SHM_UNLOCK, &buf, EPERM}
};
-int TST_TOTAL = ARRAY_SIZE(TC);
-
-int main(int ac, char **av)
+static void verify_shmctl(unsigned int i)
{
- int lc;
- int i;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup(); /* global setup */
-
- /* The following loop checks looping state if -i option given */
-
- for (lc = 0; TEST_LOOPING(lc); lc++) {
- /* reset tst_count in case we are looping */
- tst_count = 0;
-
- /* loop through the test cases */
- for (i = 0; i < TST_TOTAL; i++) {
- /*
- * use the TEST() macro to make the call
- */
-
- TEST(shmctl(*(TC[i].shmid), TC[i].cmd, TC[i].sbuf));
-
- if ((TEST_RETURN != -1) && (i < 5)) {
- tst_resm(TFAIL, "call succeeded unexpectedly");
- continue;
- }
-
- if (TEST_ERRNO == TC[i].error) {
- tst_resm(TPASS, "expected failure - errno = "
- "%d : %s", TEST_ERRNO,
- strerror(TEST_ERRNO));
- } else {
- if (i >= 5)
- tst_resm(TCONF,
- "shmctl() did not fail for non-root user."
- "This may be okay for your distribution.");
- else
- tst_resm(TFAIL, "call failed with an "
- "unexpected error - %d : %s",
- TEST_ERRNO,
- strerror(TEST_ERRNO));
- }
- }
+ TEST(shmctl(*(tc[i].shm_id), tc[i].cmd, tc[i].buf));
+
+ if (TST_RET != -1) {
+ tst_res(TFAIL, "shmctl() returned %li", TST_RET);
+ return;
}
- cleanup();
+ if (TST_ERR == tc[i].error) {
+ tst_res(TPASS | TTERRNO, "shmctl(%i, %i, %p)",
+ *tc[i].shm_id, tc[i].cmd, tc[i].buf);
+ return;
+ }
- tst_exit();
+ tst_res(TFAIL | TTERRNO, "shmctl(%i, %i, %p) expected %s",
+ *tc[i].shm_id, tc[i].cmd, tc[i].buf, tst_strerrno(tc[i].error));
}
-/*
- * setup() - performs all the ONE TIME setup for this test.
- */
-void setup(void)
+static void setup(void)
{
- key_t shmkey2;
+ key_t shmkey1, shmkey2;
+ struct passwd *ltpuser;
+ int tmp;
- tst_require_root();
+ shm_id3 = SAFE_SHMGET(IPC_PRIVATE, SHM_SIZE, IPC_CREAT | SHM_RW);
- /* Switch to nobody user for correct error code collection */
- ltpuser = getpwnam(nobody_uid);
- if (setuid(ltpuser->pw_uid) == -1) {
- tst_resm(TINFO, "setuid failed to "
- "to set the effective uid to %d", ltpuser->pw_uid);
- perror("setuid");
- }
-
- tst_sig(NOFORK, DEF_HANDLER, cleanup);
-
- TEST_PAUSE;
+ ltpuser = SAFE_GETPWNAM("nobody");
+ SAFE_SETEUID(ltpuser->pw_uid);
- /*
- * Create a temporary directory and cd into it.
- * This helps to ensure that a unique msgkey is created.
- * See libs/libltpipc/libipc.c for more information.
- */
- tst_tmpdir();
-
- /* get an IPC resource key */
- shmkey = getipckey();
-
- /* create a shared memory segment without read or write permissions */
- if ((shm_id_1 = shmget(shmkey, SHM_SIZE, IPC_CREAT | IPC_EXCL)) == -1) {
- tst_brkm(TBROK, cleanup, "couldn't create shared memory "
- "segment #1 in setup()");
- }
+ shmkey1 = GETIPCKEY();
+ shmkey2 = GETIPCKEY();
- /* Get an new IPC resource key. */
- shmkey2 = getipckey();
+ shm_id1 = SAFE_SHMGET(shmkey1, SHM_SIZE, IPC_CREAT | IPC_EXCL);
+ shm_id2 = SAFE_SHMGET(shmkey2, SHM_SIZE, IPC_CREAT | IPC_EXCL | SHM_RW);
- /* create a shared memory segment with read and write permissions */
- if ((shm_id_2 = shmget(shmkey2, SHM_SIZE, IPC_CREAT | IPC_EXCL |
- SHM_RW)) == -1) {
- tst_brkm(TBROK, cleanup, "couldn't create shared memory "
- "segment #2 in setup()");
- }
+ tmp = shm_rem = SAFE_SHMGET(IPC_PRIVATE, SHM_SIZE, IPC_CREAT | SHM_RW);
+ SAFE_SHMCTL(tmp, IPC_RMID, NULL);
}
-/*
- * cleanup() - performs all the ONE TIME cleanup for this test at completion
- * or premature exit.
- */
-void cleanup(void)
+static void cleanup(void)
{
- /* if they exist, remove the shared memory resources */
- rm_shm(shm_id_1);
- rm_shm(shm_id_2);
+ if (shm_id1 >= 0)
+ SAFE_SHMCTL(shm_id1, IPC_RMID, NULL);
- tst_rmdir();
+ if (shm_id2 >= 0)
+ SAFE_SHMCTL(shm_id2, IPC_RMID, NULL);
+ if (shm_id3 >= 0) {
+ SAFE_SETEUID(0);
+ SAFE_SHMCTL(shm_id3, IPC_RMID, NULL);
+ }
}
+
+static struct tst_test test = {
+ .setup = setup,
+ .cleanup = cleanup,
+ .test = verify_shmctl,
+ .tcnt = ARRAY_SIZE(tc),
+ .needs_root = 1,
+};