From patchwork Sun Mar 17 16:26:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Darrick J. Wong" X-Patchwork-Id: 13594597 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F43C1CD03; Sun, 17 Mar 2024 16:26:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710692792; cv=none; b=b5al7jHJKUPN2FDsbksbTt9zBZdQZDQ3p6/x8eDEAdcqM84d/X7SYr7hqTkkdbTFgMD++Tyvi8g59auDTHswgtzeq6eqPqE1YRV7bcs7iUfO6hTTmjcAoAPYrZJRtS8g2mj5DfTLnhgc90u+CUVMGt9NvpFuJ2XYn88W9+d57n0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710692792; c=relaxed/simple; bh=RWvS6hYxLBMDy+8cpkZisjZ45FWaV2WRXSY+F3T1zmE=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=lHD/spy0ukzALNOu8uDMExloG3GPA4BhSysgw26FeYPmQiwNbHRmpLd9tfUfgtHCNLB3/PvIqYTrPEOpK4SBwe38RoV/VnOCxnbf50YmtWeOYQ2MsUMSpqARwSPENuyigaNObGfCbx6ouZwNmQnINpPkzNmcDkN1fi2Wh0LsuL4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YBeExkEl; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="YBeExkEl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 238E7C433C7; Sun, 17 Mar 2024 16:26:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710692792; bh=RWvS6hYxLBMDy+8cpkZisjZ45FWaV2WRXSY+F3T1zmE=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=YBeExkEl7o9MoPb0fHR7H4RoHzqptejFdRXmeyw2G9u3p7yGSd5lfvJlqGAo3fbje wkAyoZuAMeJV2DkWw6M0Q/yUbQrzhzHfH9ch6Xh8qp8l1kTNQ+8GAUZIzvhBg9RYvt nm5/OpD5v1jLhAL1XPbHzjSSvhqGU3BHUnfkwG7phnJTLJxUC4u+2sE7ZM8gXtd1/V JMWfsqWMlH2mrKzCqlEP4rb96LdJCacoSoJG4VEB9r1F4RNIWbphNVMBfUXPiniGJM lTmYAVIYK6vGDunPMMg4yEujvP0+nlv6Y1OC/CAN0CzYetqL97Of0tkpo+iXkNRpBE jVsILZ0hllX0Q== Date: Sun, 17 Mar 2024 09:26:31 -0700 Subject: [PATCH 12/40] fsverity: pass the new tree size and block size to ->begin_enable_verity From: "Darrick J. Wong" To: djwong@kernel.org, ebiggers@kernel.org, aalbersh@redhat.com Cc: linux-fsdevel@vger.kernel.org, fsverity@lists.linux.dev, linux-xfs@vger.kernel.org Message-ID: <171069246107.2684506.3326500566486167316.stgit@frogsfrogsfrogs> In-Reply-To: <171069245829.2684506.10682056181611490828.stgit@frogsfrogsfrogs> References: <171069245829.2684506.10682056181611490828.stgit@frogsfrogsfrogs> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Darrick J. Wong When starting up the process of enabling fsverity on a file, pass the new size of the merkle tree and the merkle tree block size to the fs implementation. XFS will want this information later to try to clean out a failed previous enablement attempt. Signed-off-by: Darrick J. Wong --- fs/btrfs/verity.c | 3 ++- fs/ext4/verity.c | 3 ++- fs/f2fs/verity.c | 3 ++- fs/verity/enable.c | 3 ++- include/linux/fsverity.h | 5 ++++- 5 files changed, 12 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/verity.c b/fs/btrfs/verity.c index 966630523502..c52f32bd43c7 100644 --- a/fs/btrfs/verity.c +++ b/fs/btrfs/verity.c @@ -579,7 +579,8 @@ static int finish_verity(struct btrfs_inode *inode, const void *desc, * * Returns 0 on success, negative error code on failure. */ -static int btrfs_begin_enable_verity(struct file *filp) +static int btrfs_begin_enable_verity(struct file *filp, u64 merkle_tree_size, + unsigned int tree_blocksize) { struct btrfs_inode *inode = BTRFS_I(file_inode(filp)); struct btrfs_root *root = inode->root; diff --git a/fs/ext4/verity.c b/fs/ext4/verity.c index da2095a81349..a8ae8c912cb5 100644 --- a/fs/ext4/verity.c +++ b/fs/ext4/verity.c @@ -99,7 +99,8 @@ static int pagecache_write(struct inode *inode, const void *buf, size_t count, return 0; } -static int ext4_begin_enable_verity(struct file *filp) +static int ext4_begin_enable_verity(struct file *filp, u64 merkle_tree_size, + unsigned int tree_blocksize) { struct inode *inode = file_inode(filp); const int credits = 2; /* superblock and inode for ext4_orphan_add() */ diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c index b4461b9f47a3..f6ad6523ce95 100644 --- a/fs/f2fs/verity.c +++ b/fs/f2fs/verity.c @@ -115,7 +115,8 @@ struct fsverity_descriptor_location { __le64 pos; }; -static int f2fs_begin_enable_verity(struct file *filp) +static int f2fs_begin_enable_verity(struct file *filp, u64 merkle_tree_size, + unsigned int tree_blocksize) { struct inode *inode = file_inode(filp); int err; diff --git a/fs/verity/enable.c b/fs/verity/enable.c index 945eba0092ab..496a361c0a81 100644 --- a/fs/verity/enable.c +++ b/fs/verity/enable.c @@ -237,7 +237,8 @@ static int enable_verity(struct file *filp, if (IS_VERITY(inode)) err = -EEXIST; else - err = vops->begin_enable_verity(filp); + err = vops->begin_enable_verity(filp, params.tree_size, + params.block_size); inode_unlock(inode); if (err) goto out; diff --git a/include/linux/fsverity.h b/include/linux/fsverity.h index d12a95623614..c5f3564f2cb8 100644 --- a/include/linux/fsverity.h +++ b/include/linux/fsverity.h @@ -80,6 +80,8 @@ struct fsverity_operations { * Begin enabling verity on the given file. * * @filp: a readonly file descriptor for the file + * @merkle_tree_size: total bytes the new Merkle tree will take up + * @tree_blocksize: the new Merkle tree block size * * The filesystem must do any needed filesystem-specific preparations * for enabling verity, e.g. evicting inline data. It also must return @@ -89,7 +91,8 @@ struct fsverity_operations { * * Return: 0 on success, -errno on failure */ - int (*begin_enable_verity)(struct file *filp); + int (*begin_enable_verity)(struct file *filp, u64 merkle_tree_size, + unsigned int tree_blocksize); /** * End enabling verity on the given file.