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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30CC5C4338F for ; Fri, 6 Aug 2021 00:03:11 +0000 (UTC) Received: from lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DF41560041 for ; Fri, 6 Aug 2021 00:03:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org DF41560041 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.sourceforge.net Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.90_1) (envelope-from ) id 1mBnKM-0005wX-Rz; Fri, 06 Aug 2021 00:03:06 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mBnKL-0005wM-Sa for linux-f2fs-devel@lists.sourceforge.net; Fri, 06 Aug 2021 00:03:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:MIME-Version:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=z6CM7BTIcly4/l1lL4oBUAgbYK4399EbzX2NgZB8nsQ=; b=ZOIoqNfVR+d0zzVUCGaDrEkNj9 /ga9UPeB7wAd312oRykbzZgFsLXcQSMB+oJmSDAYcLGzwOh1iWqaXuoRJelx2Rmxis+8rGtzAmvsi HkdJy3X747tPugrE7IsxDKvJF15RcxpDqYzh3m7T8Bcp0Jzmoo6doQ9HgbfZRGFth8g0=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject:Cc:To:From :Sender:Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=z6CM7BTIcly4/l1lL4oBUAgbYK4399EbzX2NgZB8nsQ=; b=J mDte7sNmqtRYMUMe/CnFn6ZfkL3/apwLaVJgRvphM4x/OxkxvGubEcYi2CsoJkrLFEz1oHnn931i/ msvGlbgos3MwdF8Di3CtEX4DM6AUXOeX074M6WEsFDe30gJNQBP8yzc0cNl03S22RWA17MoRN9N0J XY9ngDaFJRHtUhMc=; Received: from mail.kernel.org ([198.145.29.99]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.3) id 1mBnKJ-00020z-UR for linux-f2fs-devel@lists.sourceforge.net; Fri, 06 Aug 2021 00:03:05 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6D08D60041; Fri, 6 Aug 2021 00:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628208178; bh=w+EzrCFzoXO++utJ5paGjn1FR/ff9cpEjnMnfwT0t/c=; h=From:To:Cc:Subject:Date:From; b=akZQ6u2Lb+L6bHJIqwoQfEQEBWlGgz0lZfMKdDs7ZHfpj5DjtCUeWgdHUsaH3NMC1 9kPfFPdbZoS4ZgGJfO6IbC2IYykgsH8bz3BrTMosfSP0WuYzJvRZdUht1ePOWQHcN4 Jm+9aPLOu4zOruiiENrDmfME1nQ8C1HK764bO62tR7w/ZVPPV9AEIM670+exMt5zXz uRDTZ7iV8V0rCsNC7l/HPHkTQoVM2/1OAYYZIk72zTnVOAtT1Iz70UTIFSlkB5JARb l30EI+5NQlH0h9UOLXJWVbtFLjUp9Vj4wrmWYb19O0w6mpYBMoHMImw6jLYApIWTGk cizeNgMhPsFww== From: Chao Yu To: jaegeuk@kernel.org Date: Fri, 6 Aug 2021 08:02:50 +0800 Message-Id: <20210806000250.39728-1-chao@kernel.org> X-Mailer: git-send-email 2.22.1 MIME-Version: 1.0 X-Headers-End: 1mBnKJ-00020z-UR Subject: [f2fs-dev] [PATCH v2] f2fs: compress: do sanity check on cluster X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chao Yu , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net This patch adds f2fs_sanity_check_cluster() to support doing sanity check on cluster of compressed file, it will be triggered from below two paths: - __f2fs_cluster_blocks() - f2fs_map_blocks(F2FS_GET_BLOCK_FIEMAP) And it can detect below three kind of cluster insanity status. C: COMPRESS_ADDR N: NULL_ADDR or NEW_ADDR V: valid blkaddr *: any value 1. [*|C|*|*] 2. [C|*|C|*] 3. [C|N|N|V] Signed-off-by: Chao Yu --- v2: - cover all map_block cases - give EFSCORRUPTED only when CHECK_FS is enabled for fiemap() fs/f2fs/compress.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ fs/f2fs/data.c | 9 ++++++++ fs/f2fs/f2fs.h | 1 + 3 files changed, 63 insertions(+) diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index 7dbfd6965b97..f25b32a6893a 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -898,6 +898,54 @@ static bool cluster_has_invalid_data(struct compress_ctx *cc) return false; } +bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); + unsigned int cluster_size = F2FS_I(dn->inode)->i_cluster_size; + bool compressed = dn->data_blkaddr == COMPRESS_ADDR; + int cluster_end = 0; + int i; + char *reason = ""; + + if (!compressed) + return false; + + /* [..., COMPR_ADDR, ...] */ + if (dn->ofs_in_node % cluster_size) { + reason = "[*|C|*|*]"; + goto out; + } + + for (i = 1; i < cluster_size; i++) { + block_t blkaddr = data_blkaddr(dn->inode, dn->node_page, + dn->ofs_in_node + i); + + /* [COMPR_ADDR, ..., COMPR_ADDR] */ + if (blkaddr == COMPRESS_ADDR) { + reason = "[C|*|C|*]"; + goto out; + } + if (compressed) { + if (!__is_valid_data_blkaddr(blkaddr)) { + if (!cluster_end) + cluster_end = i; + continue; + } + /* [COMPR_ADDR, NULL_ADDR or NEW_ADDR, valid_blkaddr] */ + if (cluster_end) { + reason = "[C|N|N|V]"; + goto out; + } + } + } + return false; +out: + f2fs_warn(sbi, "access invalid cluster, ino:%lu, nid:%u, ofs_in_node:%u, reason:%s", + dn->inode->i_ino, dn->nid, dn->ofs_in_node, reason); + set_sbi_flag(sbi, SBI_NEED_FSCK); + return true; +} + static int __f2fs_cluster_blocks(struct inode *inode, unsigned int cluster_idx, bool compr) { @@ -915,6 +963,11 @@ static int __f2fs_cluster_blocks(struct inode *inode, goto fail; } + if (f2fs_sanity_check_cluster(&dn)) { + ret = -EFSCORRUPTED; + goto fail; + } + if (dn.data_blkaddr == COMPRESS_ADDR) { int i; diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index df5e8d8c654e..d4c9aeba0842 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1552,6 +1552,15 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, map->m_flags |= F2FS_MAP_NEW; blkaddr = dn.data_blkaddr; } else { +#ifdef CONFIG_F2FS_FS_COMPRESSION + if (f2fs_compressed_file(inode) && + f2fs_sanity_check_cluster(&dn) && + (flag != F2FS_GET_BLOCK_FIEMAP || + IS_ENABLED(CONFIG_F2FS_CHECK_FS))) { + err = -EFSCORRUPTED; + goto sync_out; + } +#endif if (flag == F2FS_GET_BLOCK_BMAP) { map->m_pblk = 0; goto sync_out; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e97b4d8c5efc..3b368bcbc4d7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -4074,6 +4074,7 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed, block_t blkaddr); bool f2fs_cluster_is_empty(struct compress_ctx *cc); bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); +bool f2fs_sanity_check_cluster(struct dnode_of_data *dn); void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); int f2fs_write_multi_pages(struct compress_ctx *cc, int *submitted, -- 2.22.1 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel 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 X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9A6BC4338F for ; Fri, 6 Aug 2021 00:03:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9392561052 for ; Fri, 6 Aug 2021 00:03:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242661AbhHFADP (ORCPT ); Thu, 5 Aug 2021 20:03:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:39238 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229644AbhHFADN (ORCPT ); Thu, 5 Aug 2021 20:03:13 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6D08D60041; Fri, 6 Aug 2021 00:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628208178; bh=w+EzrCFzoXO++utJ5paGjn1FR/ff9cpEjnMnfwT0t/c=; h=From:To:Cc:Subject:Date:From; b=akZQ6u2Lb+L6bHJIqwoQfEQEBWlGgz0lZfMKdDs7ZHfpj5DjtCUeWgdHUsaH3NMC1 9kPfFPdbZoS4ZgGJfO6IbC2IYykgsH8bz3BrTMosfSP0WuYzJvRZdUht1ePOWQHcN4 Jm+9aPLOu4zOruiiENrDmfME1nQ8C1HK764bO62tR7w/ZVPPV9AEIM670+exMt5zXz uRDTZ7iV8V0rCsNC7l/HPHkTQoVM2/1OAYYZIk72zTnVOAtT1Iz70UTIFSlkB5JARb l30EI+5NQlH0h9UOLXJWVbtFLjUp9Vj4wrmWYb19O0w6mpYBMoHMImw6jLYApIWTGk cizeNgMhPsFww== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu , Chao Yu Subject: [PATCH v2] f2fs: compress: do sanity check on cluster Date: Fri, 6 Aug 2021 08:02:50 +0800 Message-Id: <20210806000250.39728-1-chao@kernel.org> X-Mailer: git-send-email 2.22.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds f2fs_sanity_check_cluster() to support doing sanity check on cluster of compressed file, it will be triggered from below two paths: - __f2fs_cluster_blocks() - f2fs_map_blocks(F2FS_GET_BLOCK_FIEMAP) And it can detect below three kind of cluster insanity status. C: COMPRESS_ADDR N: NULL_ADDR or NEW_ADDR V: valid blkaddr *: any value 1. [*|C|*|*] 2. [C|*|C|*] 3. [C|N|N|V] Signed-off-by: Chao Yu --- v2: - cover all map_block cases - give EFSCORRUPTED only when CHECK_FS is enabled for fiemap() fs/f2fs/compress.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ fs/f2fs/data.c | 9 ++++++++ fs/f2fs/f2fs.h | 1 + 3 files changed, 63 insertions(+) diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index 7dbfd6965b97..f25b32a6893a 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -898,6 +898,54 @@ static bool cluster_has_invalid_data(struct compress_ctx *cc) return false; } +bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) +{ + struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode); + unsigned int cluster_size = F2FS_I(dn->inode)->i_cluster_size; + bool compressed = dn->data_blkaddr == COMPRESS_ADDR; + int cluster_end = 0; + int i; + char *reason = ""; + + if (!compressed) + return false; + + /* [..., COMPR_ADDR, ...] */ + if (dn->ofs_in_node % cluster_size) { + reason = "[*|C|*|*]"; + goto out; + } + + for (i = 1; i < cluster_size; i++) { + block_t blkaddr = data_blkaddr(dn->inode, dn->node_page, + dn->ofs_in_node + i); + + /* [COMPR_ADDR, ..., COMPR_ADDR] */ + if (blkaddr == COMPRESS_ADDR) { + reason = "[C|*|C|*]"; + goto out; + } + if (compressed) { + if (!__is_valid_data_blkaddr(blkaddr)) { + if (!cluster_end) + cluster_end = i; + continue; + } + /* [COMPR_ADDR, NULL_ADDR or NEW_ADDR, valid_blkaddr] */ + if (cluster_end) { + reason = "[C|N|N|V]"; + goto out; + } + } + } + return false; +out: + f2fs_warn(sbi, "access invalid cluster, ino:%lu, nid:%u, ofs_in_node:%u, reason:%s", + dn->inode->i_ino, dn->nid, dn->ofs_in_node, reason); + set_sbi_flag(sbi, SBI_NEED_FSCK); + return true; +} + static int __f2fs_cluster_blocks(struct inode *inode, unsigned int cluster_idx, bool compr) { @@ -915,6 +963,11 @@ static int __f2fs_cluster_blocks(struct inode *inode, goto fail; } + if (f2fs_sanity_check_cluster(&dn)) { + ret = -EFSCORRUPTED; + goto fail; + } + if (dn.data_blkaddr == COMPRESS_ADDR) { int i; diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index df5e8d8c654e..d4c9aeba0842 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1552,6 +1552,15 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, map->m_flags |= F2FS_MAP_NEW; blkaddr = dn.data_blkaddr; } else { +#ifdef CONFIG_F2FS_FS_COMPRESSION + if (f2fs_compressed_file(inode) && + f2fs_sanity_check_cluster(&dn) && + (flag != F2FS_GET_BLOCK_FIEMAP || + IS_ENABLED(CONFIG_F2FS_CHECK_FS))) { + err = -EFSCORRUPTED; + goto sync_out; + } +#endif if (flag == F2FS_GET_BLOCK_BMAP) { map->m_pblk = 0; goto sync_out; diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index e97b4d8c5efc..3b368bcbc4d7 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -4074,6 +4074,7 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed, block_t blkaddr); bool f2fs_cluster_is_empty(struct compress_ctx *cc); bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); +bool f2fs_sanity_check_cluster(struct dnode_of_data *dn); void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); int f2fs_write_multi_pages(struct compress_ctx *cc, int *submitted, -- 2.22.1