119 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			119 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			C
		
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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|  * Copyright (c) Zilogic Systems Pvt. Ltd., 2018
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|  * Email: code@zilogic.com
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|  */
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| 
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| /*
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|  * Test statx
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|  *
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|  * This code tests if expected error values are returned for specific cases by
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|  * statx.
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|  * The error cases are simulated and the return value is checked against
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|  * expected error number value.
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|  * The following error values are tested:
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|  * 1) EBADF - Bad file descriptor
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|  * 2) EFAULT - Bad address
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|  * 3) EINVAL - Invalid argument
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|  * 4) ENOENT - No such file or directory
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|  * 5) ENOTDIR - Not a directory
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|  * 6) ENAMETOOLONG - Filename too long
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|  *
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|  * Error scenario is simulated for each listed flag by passing
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|  * respective arguments.
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|  * The obtained error flag is checked against the expected
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|  * flag value for that scenario.
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|  *
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|  * Minimum Kernel version required is 4.11.
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|  */
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| 
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| #define _GNU_SOURCE
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| #include <stdio.h>
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| #include <string.h>
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| #include "tst_test.h"
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| #include "tst_safe_macros.h"
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| #include "tst_get_bad_addr.h"
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| #include "lapi/stat.h"
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| 
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| #define TESTFILE "test_file"
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| #define MODE 0644
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| 
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| static char long_pathname[257];
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| 
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| static char *test_fname = TESTFILE;
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| static char *efault_fname;
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| static char *empty_fname = "";
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| static char *etoolong_fname = long_pathname;
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| 
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| static struct test_case {
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| 	uint32_t dfd;
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| 	char **filename;
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| 	uint32_t flag;
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| 	uint32_t mask;
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| 	int32_t errnum;
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| } tcases[] = {
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| 	{.dfd = -1, .filename = &test_fname, .flag = 0,
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| 	 .mask = 0, .errnum = EBADF},
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| 
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| 	{.dfd = AT_FDCWD, .filename = &efault_fname, .flag = 0,
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| 	 .mask = 0, .errnum = EFAULT},
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| 
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| 	{.dfd = AT_FDCWD, .filename = &test_fname, .flag = -1,
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| 	 .mask = 0, .errnum = EINVAL},
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| 
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| 	{.dfd = AT_FDCWD, .filename = &test_fname, .flag = 0,
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| 	 .mask = -1, .errnum = EINVAL},
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| 
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| 	{.dfd = AT_FDCWD, .filename = &empty_fname, .flag = 0,
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| 	 .mask = 0, .errnum = ENOENT},
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| 
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| 	{.dfd = 1, .filename = &test_fname, .flag = 0,
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| 	 .mask = 0, .errnum = ENOTDIR},
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| 
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| 	{.dfd = AT_FDCWD, .filename = &etoolong_fname, .flag = 0,
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| 	 .mask = 0, .errnum = ENAMETOOLONG},
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| };
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| 
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| static void run_test(unsigned int i)
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| {
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| 	struct statx buf;
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| 	struct test_case *tc = &tcases[i];
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| 
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| 	TEST(statx(tc->dfd, *(tc->filename), tc->flag,
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| 		   tc->mask, &buf));
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| 
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| 	if (TST_RET != -1) {
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| 		tst_res(TFAIL, "statx() returned with %ld", TST_RET);
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| 		return;
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| 	}
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| 
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| 	if (tc->errnum == TST_ERR) {
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| 		tst_res(TPASS | TTERRNO, "statx() failed with");
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| 		return;
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| 	}
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| 
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| 	tst_res(TFAIL | TTERRNO,
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| 		"statx() should fail with %s", tst_strerrno(tc->errnum));
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| }
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| 
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| static void setup(void)
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| {
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| 	int file_fd;
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| 
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| 	file_fd = SAFE_OPEN(TESTFILE, O_RDWR | O_CREAT, MODE);
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| 	SAFE_CLOSE(file_fd);
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| 
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| 	memset(long_pathname, '@', sizeof(long_pathname));
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| 	long_pathname[sizeof(long_pathname) - 1] = 0;
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| 
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| 	efault_fname = tst_get_bad_addr(NULL);
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| }
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| 
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| static struct tst_test test = {
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| 	.tcnt = ARRAY_SIZE(tcases),
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| 	.test = run_test,
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| 	.setup = setup,
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| 	.min_kver = "4.11",
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| 	.needs_tmpdir = 1,
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| };
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