From patchwork Fri Jun 25 13:58:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12345151 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=-19.4 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 BF4EDC49EAB for ; Fri, 25 Jun 2021 13:58:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A66D161983 for ; Fri, 25 Jun 2021 13:58:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231774AbhFYOBD (ORCPT ); Fri, 25 Jun 2021 10:01:03 -0400 Received: from mail.kernel.org ([198.145.29.99]:33266 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231668AbhFYOBB (ORCPT ); Fri, 25 Jun 2021 10:01:01 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DF34F6135A; Fri, 25 Jun 2021 13:58:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624629520; bh=rUsYrZgKW45RRfGRRPRW4bnzX0ECO0iVaUttgx7dHZs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QQ29gLJywMo4OfnRGLAxba3kTlIWw9oUSDmkKhsZ6t5yNV/rTAnXmD9pckm1Q0VZf wayvLcU0qf3gtmmje0FP+NWZvBb3dAjjXhcH4hcWtA/VnWtNa/KBH2cQn9BD+cLO7f E5eiim9JjIS849UWBdu2BK4WroP6ghftR6QQF86xUtDAq/PhGjGiONtogplZPPW0Uk kZAu/0sItBypBy8z6qB7JB2rvmTlH3zaMqambsSQsUmzAz6ORaBYeN51ehgu5B23X2 kLbtbJ6ECcahTbHtB+exypy8MwnAf0yNwZpTpj/TgAeYJZ+w2wBSAZvYbtvmBjWyBS ASjy31JvBDLWA== From: Jeff Layton To: ceph-devel@vger.kernel.org Cc: lhenriques@suse.de, xiubli@redhat.com, linux-fsdevel@vger.kernel.org, linux-fscrypt@vger.kernel.org, dhowells@redhat.com Subject: [RFC PATCH v7 06/24] ceph: parse new fscrypt_auth and fscrypt_file fields in inode traces Date: Fri, 25 Jun 2021 09:58:16 -0400 Message-Id: <20210625135834.12934-7-jlayton@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210625135834.12934-1-jlayton@kernel.org> References: <20210625135834.12934-1-jlayton@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org ...and store them in the ceph_inode_info. Signed-off-by: Jeff Layton --- fs/ceph/file.c | 2 ++ fs/ceph/inode.c | 18 ++++++++++++++++++ fs/ceph/mds_client.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ fs/ceph/mds_client.h | 4 ++++ fs/ceph/super.h | 6 ++++++ 5 files changed, 74 insertions(+) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 2cda398ba64d..ea0e85075b7b 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -592,6 +592,8 @@ static int ceph_finish_async_create(struct inode *dir, struct inode *inode, iinfo.xattr_data = xattr_buf; memset(iinfo.xattr_data, 0, iinfo.xattr_len); + /* FIXME: set fscrypt_auth and fscrypt_file */ + in.ino = cpu_to_le64(vino.ino); in.snapid = cpu_to_le64(CEPH_NOSNAP); in.version = cpu_to_le64(1); // ??? diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index f62785e4dbcb..b620281ea65b 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -611,6 +611,13 @@ struct inode *ceph_alloc_inode(struct super_block *sb) ci->i_meta_err = 0; +#ifdef CONFIG_FS_ENCRYPTION + ci->fscrypt_auth = NULL; + ci->fscrypt_auth_len = 0; + ci->fscrypt_file = NULL; + ci->fscrypt_file_len = 0; +#endif + return &ci->vfs_inode; } @@ -619,6 +626,9 @@ void ceph_free_inode(struct inode *inode) struct ceph_inode_info *ci = ceph_inode(inode); kfree(ci->i_symlink); +#ifdef CONFIG_FS_ENCRYPTION + kfree(ci->fscrypt_auth); +#endif kmem_cache_free(ceph_inode_cachep, ci); } @@ -1021,6 +1031,14 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page, xattr_blob = NULL; } + if (iinfo->fscrypt_auth_len && !ci->fscrypt_auth) { + ci->fscrypt_auth_len = iinfo->fscrypt_auth_len; + ci->fscrypt_auth = iinfo->fscrypt_auth; + iinfo->fscrypt_auth = NULL; + iinfo->fscrypt_auth_len = 0; + inode_set_flags(inode, S_ENCRYPTED, S_ENCRYPTED); + } + /* finally update i_version */ if (le64_to_cpu(info->version) > ci->i_version) ci->i_version = le64_to_cpu(info->version); diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 3b3a14024ca0..9c994effc51d 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -183,8 +183,48 @@ static int parse_reply_info_in(void **p, void *end, info->rsnaps = 0; } + if (struct_v >= 5) { + u32 alen; + + ceph_decode_32_safe(p, end, alen, bad); + + while (alen--) { + u32 len; + + /* key */ + ceph_decode_32_safe(p, end, len, bad); + ceph_decode_skip_n(p, end, len, bad); + /* value */ + ceph_decode_32_safe(p, end, len, bad); + ceph_decode_skip_n(p, end, len, bad); + } + } + + /* fscrypt flag -- ignore */ + if (struct_v >= 6) + ceph_decode_skip_8(p, end, bad); + + if (struct_v >= 7) { + ceph_decode_32_safe(p, end, info->fscrypt_auth_len, bad); + if (info->fscrypt_auth_len) { + info->fscrypt_auth = kmalloc(info->fscrypt_auth_len, GFP_KERNEL); + if (!info->fscrypt_auth) + return -ENOMEM; + ceph_decode_copy_safe(p, end, info->fscrypt_auth, + info->fscrypt_auth_len, bad); + } + ceph_decode_32_safe(p, end, info->fscrypt_file_len, bad); + if (info->fscrypt_file_len) { + info->fscrypt_file = kmalloc(info->fscrypt_file_len, GFP_KERNEL); + if (!info->fscrypt_file) + return -ENOMEM; + ceph_decode_copy_safe(p, end, info->fscrypt_file, + info->fscrypt_file_len, bad); + } + } *p = end; } else { + /* legacy (unversioned) struct */ if (features & CEPH_FEATURE_MDS_INLINE_DATA) { ceph_decode_64_safe(p, end, info->inline_version, bad); ceph_decode_32_safe(p, end, info->inline_len, bad); @@ -625,6 +665,10 @@ static int parse_reply_info(struct ceph_mds_session *s, struct ceph_msg *msg, static void destroy_reply_info(struct ceph_mds_reply_info_parsed *info) { + kfree(info->diri.fscrypt_auth); + kfree(info->diri.fscrypt_file); + kfree(info->targeti.fscrypt_auth); + kfree(info->targeti.fscrypt_file); if (!info->dir_entries) return; free_pages((unsigned long)info->dir_entries, get_order(info->dir_buf_size)); diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h index 64ea9d853b8d..0c3cc61fd038 100644 --- a/fs/ceph/mds_client.h +++ b/fs/ceph/mds_client.h @@ -88,6 +88,10 @@ struct ceph_mds_reply_info_in { s32 dir_pin; struct ceph_timespec btime; struct ceph_timespec snap_btime; + u8 *fscrypt_auth; + u8 *fscrypt_file; + u32 fscrypt_auth_len; + u32 fscrypt_file_len; u64 rsnaps; u64 change_attr; }; diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 0cd94b296f5f..e032737fe472 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -429,6 +429,12 @@ struct ceph_inode_info { #ifdef CONFIG_CEPH_FSCACHE struct fscache_cookie *fscache; +#endif +#ifdef CONFIG_FS_ENCRYPTION + u32 fscrypt_auth_len; + u32 fscrypt_file_len; + u8 *fscrypt_auth; + u8 *fscrypt_file; #endif errseq_t i_meta_err;