From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5839AC433FE for ; Fri, 29 Oct 2021 21:18:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 38F4D60FC3 for ; Fri, 29 Oct 2021 21:18:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231575AbhJ2VVG (ORCPT ); Fri, 29 Oct 2021 17:21:06 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:58444 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231463AbhJ2VVF (ORCPT ); Fri, 29 Oct 2021 17:21:05 -0400 Received: from localhost (unknown [IPv6:2804:14c:124:8a08::1002]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: krisman) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 406171F45C6F; Fri, 29 Oct 2021 22:18:34 +0100 (BST) From: Gabriel Krisman Bertazi To: jack@suse.com, amir73il@gmail.com, repnop@google.com Cc: ltp@lists.linux.it, khazhy@google.com, kernel@collabora.com, linux-ext4@vger.kernel.org, Gabriel Krisman Bertazi Subject: [PATCH v3 7/9] syscalls/fanotify21: Create a corrupted file Date: Fri, 29 Oct 2021 18:17:30 -0300 Message-Id: <20211029211732.386127-8-krisman@collabora.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211029211732.386127-1-krisman@collabora.com> References: <20211029211732.386127-1-krisman@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org Allocate a test directory and corrupt it with debugfs. The corruption is done by writing an invalid inode mode. This file can be later looked up to trigger a corruption error. Reviewed-by: Amir Goldstein Signed-off-by: Gabriel Krisman Bertazi --- testcases/kernel/syscalls/fanotify/fanotify21.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/testcases/kernel/syscalls/fanotify/fanotify21.c b/testcases/kernel/syscalls/fanotify/fanotify21.c index 43e606c27372..3e4ac2eb2e5b 100644 --- a/testcases/kernel/syscalls/fanotify/fanotify21.c +++ b/testcases/kernel/syscalls/fanotify/fanotify21.c @@ -39,9 +39,12 @@ static char event_buf[BUF_SIZE]; int fd_notify; #define MOUNT_PATH "test_mnt" +#define BASE_DIR "internal_dir" +#define BAD_DIR BASE_DIR"/bad_dir" /* These expected FIDs are common to multiple tests */ static struct fanotify_fid_t null_fid; +static struct fanotify_fid_t bad_file_fid; static void trigger_fs_abort(void) { @@ -197,6 +200,18 @@ static void do_test(unsigned int i) check_event(event_buf, read_len, tcase); } +static void pre_corrupt_fs(void) +{ + SAFE_MKDIR(MOUNT_PATH"/"BASE_DIR, 0777); + SAFE_MKDIR(MOUNT_PATH"/"BAD_DIR, 0777); + + fanotify_save_fid(MOUNT_PATH"/"BAD_DIR, &bad_file_fid); + + SAFE_UMOUNT(MOUNT_PATH); + do_debugfs_request(tst_device->dev, "sif " BAD_DIR " mode 0xff"); + SAFE_MOUNT(tst_device->dev, MOUNT_PATH, tst_device->fs_type, 0, NULL); +} + static void init_null_fid(void) { /* Use fanotify_save_fid to fill the fsid and overwrite the @@ -216,6 +231,8 @@ static void setup(void) init_null_fid(); + pre_corrupt_fs(); + fd_notify = SAFE_FANOTIFY_INIT(FAN_CLASS_NOTIF|FAN_REPORT_FID, O_RDONLY); } -- 2.33.0