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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
58beae2585
Replace direct error handling with 'ksft_test_result_*' macros for better reporting. Test logs: Before change: - Without root error: unshare, errno 1 - With root No, output After change: - Without root TAP version 13 1..1 ok 2 # SKIP This test needs root to run! Totals: pass:0 fail:0 xfail:0 xpass:0 skip:1 error:0 - With root TAP version 13 1..1 ok 1 Test : Success Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://lore.kernel.org/r/20250105085255.124929-3-cvam0000@gmail.com Signed-off-by: Shivam Chaudhary <cvam0000@gmail.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
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* Copyright (c) 2019 Alexey Dobriyan <adobriyan@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Test that open(O_TMPFILE), linkat() doesn't screw accounting. */
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#include <errno.h>
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#include <sched.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/mount.h>
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#include <unistd.h>
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#include "../kselftest.h"
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int main(void)
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{
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int fd;
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// Setting up kselftest framework
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ksft_print_header();
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ksft_set_plan(1);
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// Check if test is run as root
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if (geteuid()) {
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ksft_exit_skip("This test needs root to run!\n");
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return 1;
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}
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if (unshare(CLONE_NEWNS) == -1) {
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if (errno == ENOSYS || errno == EPERM) {
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ksft_exit_skip("unshare() error: unshare, errno %d\n", errno);
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} else {
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ksft_exit_fail_msg("unshare() error: unshare, errno %d\n", errno);
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}
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}
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if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) {
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ksft_exit_fail_msg("mount() error: Root filesystem private mount: Fail %d\n", errno);
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}
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/* Our heroes: 1 root inode, 1 O_TMPFILE inode, 1 permanent inode. */
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if (mount(NULL, "/tmp", "tmpfs", 0, "nr_inodes=3") == -1) {
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ksft_exit_fail_msg("mount() error: Mounting tmpfs on /tmp: Fail %d\n", errno);
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}
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fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_TMPFILE, 0600);
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if (fd == -1) {
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ksft_exit_fail_msg("openat() error: Open first temporary file: Fail %d\n", errno);
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}
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if (linkat(fd, "", AT_FDCWD, "/tmp/1", AT_EMPTY_PATH) == -1) {
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ksft_exit_fail_msg("linkat() error: Linking the temporary file: Fail %d\n", errno);
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/* Ensure fd is closed on failure */
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close(fd);
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}
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close(fd);
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fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_TMPFILE, 0600);
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if (fd == -1) {
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ksft_exit_fail_msg("openat() error: Opening the second temporary file: Fail %d\n", errno);
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}
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ksft_test_result_pass(" ");
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ksft_exit_pass();
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return 0;
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}
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