From patchwork Thu Dec 9 15:36:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12666775 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 282DCC433FE for ; Thu, 9 Dec 2021 15:37:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240106AbhLIPkg (ORCPT ); Thu, 9 Dec 2021 10:40:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240044AbhLIPkb (ORCPT ); Thu, 9 Dec 2021 10:40:31 -0500 Received: from sin.source.kernel.org (sin.source.kernel.org [IPv6:2604:1380:40e1:4800::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37D49C061746; Thu, 9 Dec 2021 07:36:57 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id AEBE7CE263D; Thu, 9 Dec 2021 15:36:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 76D30C341CD; Thu, 9 Dec 2021 15:36:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1639064214; bh=+DBQWpT7aY2KuM47s4pOM3NrvBsA77WSh5mPWxCIR9Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rCmHAW6gTiPp9DCJbyFSuw05ZQqLvnfs83hJoibS3vVxkpC/7n4dM1Lv1Vmc9TOrL 044c4oMBfQt9hu9VIl1uzA1RYldVQtAVuupG7exmnrOug9FMFcLzhAQSnOp39gSpOn qo6/zkldcWto2MoDVc9hN0IZ5Prsry16950N6qEPBcx/uvcMTJlyx0CKTABCKAND5C 255nNOjkiMWCdah6o8088nXXfwodzgjhUSGGoV+tU+Ea5+JZfqZWCvUOevyF9Mjvy+ GJ2KCBS7FEZik/cgne6AXfjlf/OFvd3sJ80HL5xlQYqeKcg3WagQaS9ZOY4QNNgCDc oCvzP5m8tN/Vw== From: Jeff Layton To: ceph-devel@vger.kernel.org Cc: linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 08/36] ceph: parse new fscrypt_auth and fscrypt_file fields in inode traces Date: Thu, 9 Dec 2021 10:36:19 -0500 Message-Id: <20211209153647.58953-9-jlayton@kernel.org> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211209153647.58953-1-jlayton@kernel.org> References: <20211209153647.58953-1-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 | 55 ++++++++++++++++++++++++++++++++++++++++++++ fs/ceph/mds_client.h | 4 ++++ fs/ceph/super.h | 6 +++++ 5 files changed, 84 insertions(+), 1 deletion(-) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index beec875632bc..c2e3e833ffc0 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -593,6 +593,8 @@ 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 472873de234e..dbb31fc0ef76 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -609,7 +609,10 @@ struct inode *ceph_alloc_inode(struct super_block *sb) INIT_WORK(&ci->i_work, ceph_inode_work); ci->i_work_mask = 0; memset(&ci->i_btime, '\0', sizeof(ci->i_btime)); - +#ifdef CONFIG_FS_ENCRYPTION + ci->fscrypt_auth = NULL; + ci->fscrypt_auth_len = 0; +#endif ceph_fscache_inode_init(ci); return &ci->vfs_inode; @@ -620,6 +623,9 @@ 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); } @@ -1016,6 +1022,16 @@ int ceph_fill_inode(struct inode *inode, struct page *locked_page, xattr_blob = NULL; } +#ifdef CONFIG_FS_ENCRYPTION + 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); + } +#endif + /* 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 57cf21c9199f..bd824e989449 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -184,8 +184,50 @@ 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); + + info->fscrypt_auth = NULL; + info->fscrypt_file = NULL; + 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); @@ -626,8 +668,21 @@ 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) { + int i; + + 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; + + for (i = 0; i < info->dir_nr; i++) { + struct ceph_mds_reply_dir_entry *rde = info->dir_entries + i; + + kfree(rde->inode.fscrypt_auth); + kfree(rde->inode.fscrypt_file); + } 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 c3986a412fb5..98a8710807d1 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 7340f163f3ea..28fda0b83bc3 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -433,6 +433,12 @@ struct ceph_inode_info { struct work_struct i_work; unsigned long i_work_mask; +#ifdef CONFIG_FS_ENCRYPTION + u32 fscrypt_auth_len; + u32 fscrypt_file_len; + u8 *fscrypt_auth; + u8 *fscrypt_file; +#endif #ifdef CONFIG_CEPH_FSCACHE struct fscache_cookie *fscache; #endif