88 lines
2.0 KiB
C
88 lines
2.0 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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* openat2() tests with various resolve flags.
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*/
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#include "tst_test.h"
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#include "lapi/openat2.h"
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#define FOO_SYMLINK "foo_symlink"
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static struct open_how *how;
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static struct tcase {
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const char *name;
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const char *pathname;
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uint64_t resolve;
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int exp_errno;
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} tcases[] = {
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/* Success cases */
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{"open /proc/version", "/proc/version", 0, 0},
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{"open magiclinks", "/proc/self/exe", 0, 0},
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{"open symlinks", FOO_SYMLINK, 0, 0},
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/* Failure cases */
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{"resolve-no-xdev", "/proc/version", RESOLVE_NO_XDEV, EXDEV},
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{"resolve-no-magiclinks", "/proc/self/exe", RESOLVE_NO_MAGICLINKS, ELOOP},
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{"resolve-no-symlinks", FOO_SYMLINK, RESOLVE_NO_SYMLINKS, ELOOP},
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{"resolve-beneath", "/proc/version", RESOLVE_BENEATH, EXDEV},
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{"resolve-beneath", "../foo", RESOLVE_BENEATH, EXDEV},
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{"resolve-no-in-root", "/proc/version", RESOLVE_IN_ROOT, ENOENT},
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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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SAFE_SYMLINK("/proc/version", FOO_SYMLINK);
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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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how->flags = O_RDONLY | O_CREAT;
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how->mode = S_IRUSR;
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how->resolve = tc->resolve;
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TEST(openat2(AT_FDCWD, tc->pathname, how, sizeof(*how)));
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if (!tc->exp_errno) {
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if (TST_RET < 0) {
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tst_res(TFAIL | TTERRNO, "%s: openat2() failed",
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tc->name);
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return;
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}
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SAFE_CLOSE(TST_RET);
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tst_res(TPASS, "%s: openat2() passed", tc->name);
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} else {
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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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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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tst_res(TPASS | TTERRNO, "%s: openat2() failed as expected",
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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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{},
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}
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};
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