@@ -1,113 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) International Business Machines Corp., 2004
* Written by Robbie Williamson
- *
- * 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) 2023 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com>
*/
-/*
- * Test Description: Test that a normal page cannot be mapped into a high
- * memory region.
+/*\
+ * [Description]
+ *
+ * Verify that, a normal page cannot be mapped into a high memory region,
+ * and mmap() call fails with either ENOMEM or EINVAL errno.
*/
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include "test.h"
-#include "safe_macros.h"
-#include "lapi/abisize.h"
-
-char *TCID = "mmap15";
-int TST_TOTAL = 1;
+#include "tst_test.h"
#ifdef __ia64__
-# define HIGH_ADDR (void *)(0xa000000000000000UL)
+# define HIGH_ADDR ((void *)(0xa000000000000000UL))
#else
-# define HIGH_ADDR (void *)(-page_size)
+# define HIGH_ADDR ((void *)(-page_size))
#endif
+#define TEMPFILE "mmapfile"
static long page_size;
+static int fd;
-static void setup(void);
-static void cleanup(void);
-
-int main(int ac, char **av)
+static void run(void)
{
- int lc, fd;
- void *addr;
-
#ifdef TST_ABI32
- tst_brkm(TCONF, NULL, "This test is only for 64bit");
+ tst_brk(TCONF, "Test is not applicable for 32-bit systems.");
#endif
- tst_parse_opts(ac, av, NULL, NULL);
+ fd = SAFE_OPEN(TEMPFILE, O_RDWR | O_CREAT, 0666);
- setup();
+ TESTPTR(mmap(HIGH_ADDR, page_size, PROT_READ, MAP_SHARED | MAP_FIXED, fd, 0));
- for (lc = 0; TEST_LOOPING(lc); lc++) {
- tst_count = 0;
-
- fd = SAFE_OPEN(cleanup, "testfile", O_RDWR | O_CREAT, 0666);
-
- /* Attempt to mmap into highmem addr, should get ENOMEM */
- addr = mmap(HIGH_ADDR, page_size, PROT_READ,
- MAP_SHARED | MAP_FIXED, fd, 0);
- if (addr != MAP_FAILED) {
- tst_resm(TFAIL, "mmap into high region "
- "succeeded unexpectedly");
- munmap(addr, page_size);
- close(fd);
- continue;
- }
-
- if (errno != ENOMEM && errno != EINVAL) {
- tst_resm(TFAIL | TERRNO, "mmap into high region "
- "failed unexpectedly");
- } else {
- tst_resm(TPASS | TERRNO, "mmap into high region "
- "failed as expected");
- }
-
- SAFE_CLOSE(cleanup, fd);
+ if (TST_RET_PTR != MAP_FAILED) {
+ tst_res(TFAIL, "mmap() into high mem region succeeded unexpectedly");
+ SAFE_MUNMAP(TST_RET_PTR, page_size);
+ return;
+ } else if (TST_RET_PTR == MAP_FAILED && (TST_ERR == ENOMEM || TST_ERR == EINVAL)) {
+ tst_res(TPASS | TERRNO, "mmap() failed with expected errno");
+ } else {
+ tst_res(TFAIL | TERRNO, "mmap() failed with unexpected errno");
}
- cleanup();
- tst_exit();
+ SAFE_CLOSE(fd);
}
static void setup(void)
{
- tst_require_root();
-
- tst_tmpdir();
-
page_size = getpagesize();
-
- TEST_PAUSE;
}
static void cleanup(void)
{
- tst_rmdir();
+ if (fd > 0)
+ SAFE_CLOSE(fd);
}
+
+static struct tst_test test = {
+ .setup = setup,
+ .cleanup = cleanup,
+ .test_all = run,
+ .needs_root = 1,
+ .needs_tmpdir = 1
+};
Signed-off-by: Avinesh Kumar <akumar@suse.de> --- testcases/kernel/syscalls/mmap/mmap15.c | 116 +++++++----------------- 1 file changed, 35 insertions(+), 81 deletions(-)