89 lines
2.0 KiB
C
89 lines
2.0 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2021 Google. All Rights Reserved.
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* Copyright (c) 2022 Petr Vorel <pvorel@suse.cz>
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*
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* Started by Matthew Bobrowski <repnop@google.com>
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*/
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/*\
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* [Description]
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*
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* This source file contains a test case which ensures that the fanotify API
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* returns an expected error code when provided an invalid initialization flag
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* alongside FAN_REPORT_PIDFD. Additionally, it checks that the operability with
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* existing FAN_REPORT_* flags is maintained and functioning as intended.
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*
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* NOTE: FAN_REPORT_PIDFD support was added in v5.15-rc1 in af579beb666a
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* ("fanotify: add pidfd support to the fanotify API").
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*/
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#define _GNU_SOURCE
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#include "tst_test.h"
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#include <errno.h>
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#ifdef HAVE_SYS_FANOTIFY_H
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#include "fanotify.h"
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#define MOUNT_PATH "fs_mnt"
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#define FLAGS_DESC(x) .flags = x, .desc = #x
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static int fd;
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static struct test_case_t {
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unsigned int flags;
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char *desc;
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int exp_errno;
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} test_cases[] = {
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{
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FLAGS_DESC(FAN_REPORT_PIDFD | FAN_REPORT_TID),
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.exp_errno = EINVAL,
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},
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{
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FLAGS_DESC(FAN_REPORT_PIDFD | FAN_REPORT_FID | FAN_REPORT_DFID_NAME),
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},
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};
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static void do_setup(void)
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{
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/*
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* An explicit check for FAN_REPORT_PIDFD is performed early on in the
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* test initialization as it's a prerequisite for all test cases.
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*/
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REQUIRE_FANOTIFY_INIT_FLAGS_SUPPORTED_BY_KERNEL(FAN_REPORT_PIDFD);
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}
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static void do_test(unsigned int i)
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{
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struct test_case_t *tc = &test_cases[i];
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tst_res(TINFO, "Test %s on %s", tc->exp_errno ? "fail" : "pass",
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tc->desc);
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TST_EXP_FD_OR_FAIL(fd = fanotify_init(tc->flags, O_RDONLY),
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tc->exp_errno);
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if (fd > 0)
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SAFE_CLOSE(fd);
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}
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static void do_cleanup(void)
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{
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if (fd > 0)
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SAFE_CLOSE(fd);
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}
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static struct tst_test test = {
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.setup = do_setup,
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.test = do_test,
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.tcnt = ARRAY_SIZE(test_cases),
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.cleanup = do_cleanup,
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.all_filesystems = 1,
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.needs_root = 1,
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.mntpoint = MOUNT_PATH,
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};
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#else
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TST_TEST_TCONF("system doesn't have required fanotify support");
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#endif /* HAVE_SYS_FANOTIFY_H */
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