81 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			81 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			C
		
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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|  * Copyright (c) 2020 Viresh Kumar <viresh.kumar@linaro.org>
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|  *
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|  * Basic openat2() test to check various failures.
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|  */
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| #include "tst_test.h"
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| #include "lapi/openat2.h"
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| 
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| #define TEST_FILE "test_file"
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| 
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| static struct open_how *how;
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| static struct open_how_pad *phow;
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| 
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| static struct tcase {
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| 	const char *name;
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| 	int dfd;
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| 	const char *pathname;
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| 	uint64_t flags;
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| 	uint64_t mode;
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| 	uint64_t resolve;
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| 	struct open_how **how;
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| 	size_t size;
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| 	int exp_errno;
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| } tcases[] = {
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| 	{"invalid-dfd", -1, TEST_FILE, O_RDWR | O_CREAT, S_IRWXU, 0, &how, sizeof(*how), EBADF},
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| 	{"invalid-pathname", AT_FDCWD, NULL, O_RDONLY | O_CREAT, S_IRUSR, 0, &how, sizeof(*how), EFAULT},
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| 	{"invalid-flags", AT_FDCWD, TEST_FILE, O_RDONLY, S_IWUSR, 0, &how, sizeof(*how), EINVAL},
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| 	{"invalid-mode", AT_FDCWD, TEST_FILE, O_RDWR | O_CREAT, -1, 0, &how, sizeof(*how), EINVAL},
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| 	{"invalid-resolve", AT_FDCWD, TEST_FILE, O_RDWR | O_CREAT, S_IRWXU, -1, &how, sizeof(*how), EINVAL},
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| 	{"invalid-size-zero", AT_FDCWD, TEST_FILE, O_RDWR | O_CREAT, S_IRWXU, 0, &how, 0, EINVAL},
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| 	{"invalid-size-small", AT_FDCWD, TEST_FILE, O_RDWR | O_CREAT, S_IRWXU, 0, &how, sizeof(*how) - 1, EINVAL},
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| 	{"invalid-size-big", AT_FDCWD, TEST_FILE, O_RDWR | O_CREAT, S_IRWXU, 0, &how, sizeof(*how) + 1, EFAULT},
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| 	{"invalid-size-big-with-pad", AT_FDCWD, TEST_FILE, O_RDWR | O_CREAT, S_IRWXU, 0, (struct open_how **)&phow, sizeof(*how) + 8, E2BIG},
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| };
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| 
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| static void setup(void)
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| {
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| 	openat2_supported_by_kernel();
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| 	phow->pad = 0xDEAD;
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| }
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| 
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| static void run(unsigned int n)
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| {
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| 	struct tcase *tc = &tcases[n];
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| 	struct open_how *myhow = *tc->how;
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| 
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| 	myhow->flags = tc->flags;
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| 	myhow->mode = tc->mode;
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| 	myhow->resolve = tc->resolve;
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| 
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| 	TEST(openat2(tc->dfd, tc->pathname, myhow, tc->size));
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| 
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| 	if (TST_RET >= 0) {
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| 		SAFE_CLOSE(TST_RET);
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| 		tst_res(TFAIL, "%s: openat2() passed unexpectedly",
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| 			tc->name);
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| 		return;
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| 	}
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| 
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| 	if (tc->exp_errno != TST_ERR) {
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| 		tst_res(TFAIL | TTERRNO, "%s: openat2() should fail with %s",
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| 			tc->name, tst_strerrno(tc->exp_errno));
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| 		return;
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| 	}
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| 
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| 	tst_res(TPASS | TTERRNO, "%s: openat2() failed as expected", tc->name);
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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,
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| 	.setup = setup,
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| 	.needs_tmpdir = 1,
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| 	.bufs = (struct tst_buffers []) {
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| 		{&how, .size = sizeof(*how)},
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| 		{&phow, .size = sizeof(*phow)},
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| 		{},
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| 	}
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| };
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