diff options
Diffstat (limited to 'testcases/kernel/syscalls/mmap/mmap15.c')
-rw-r--r-- | testcases/kernel/syscalls/mmap/mmap15.c | 123 |
1 files changed, 38 insertions, 85 deletions
diff --git a/testcases/kernel/syscalls/mmap/mmap15.c b/testcases/kernel/syscalls/mmap/mmap15.c index 443a37eb8..71c18a10a 100644 --- a/testcases/kernel/syscalls/mmap/mmap15.c +++ b/testcases/kernel/syscalls/mmap/mmap15.c @@ -1,113 +1,66 @@ +// 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 + * Written by Robbie Williamson + * Copyright (c) 2023 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com> + * Copyright (c) Linux Test Project, 2014-2023 */ -/* - * 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 -static long page_size; +#define TEMPFILE "mmapfile" -static void setup(void); -static void cleanup(void); +static long page_size; +static int fd; -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"); -#endif + fd = SAFE_OPEN(TEMPFILE, O_RDWR | O_CREAT, 0666); - tst_parse_opts(ac, av, NULL, NULL); + TESTPTR(mmap(HIGH_ADDR, page_size, PROT_READ, MAP_SHARED | MAP_FIXED, fd, 0)); - setup(); - - 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; } - cleanup(); - tst_exit(); + if (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"); + + 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, + .skip_in_compat = 1, + .needs_tmpdir = 1 +}; |