From patchwork Tue Jan 11 19:15:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 12710409 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 2BA26C4332F for ; Tue, 11 Jan 2022 19:16:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350455AbiAKTQS (ORCPT ); Tue, 11 Jan 2022 14:16:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40096 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350449AbiAKTQR (ORCPT ); Tue, 11 Jan 2022 14:16:17 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 009A3C06173F; Tue, 11 Jan 2022 11:16:16 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 8B98261260; Tue, 11 Jan 2022 19:16:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B5E3C36AE9; Tue, 11 Jan 2022 19:16:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1641928576; bh=2GPch3V33XgOw4ukyOQphOiW9OrOmvXkpqmGccRI4Sg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RT8ay7UR39WjcZSX3fExCTcQrOclpbXsaTRkE1ZfL/WNIp4zbhcxH6H1cgK6Vm7gw flyEAVeChydWcqz++Lvw/PzMPNzM77+sTIc151X3IemWaa/kRIl9XGc4gw4AwO9FPx W5GHO2eUPrUlgGRWAaFfIu6QbXGyZpuqq7uVNP8b12/TiRxH0EGX5eDMUuQdZAAgjx gnJp8vswGStyFfCj/Iid76GQVqpu0+H3NYPvYbzndHvSl1f0DP12hktPIca2UX2j3/ hZ7PN3tMmV1RAzx6jzWdl5YxPmHMoKBxJXoCU/RzssbJx9q0fw1ztiumdmfE5yw6pz oNBo0orBN9GQg== From: Jeff Layton To: ceph-devel@vger.kernel.org, linux-fscrypt@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, idryomov@gmail.com Subject: [RFC PATCH v10 07/48] ceph: parse new fscrypt_auth and fscrypt_file fields in inode traces Date: Tue, 11 Jan 2022 14:15:27 -0500 Message-Id: <20220111191608.88762-8-jlayton@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220111191608.88762-1-jlayton@kernel.org> References: <20220111191608.88762-1-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 ace72a052254..5937a25ddddd 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -597,6 +597,8 @@ 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 649d7a059d7b..d090fe081093 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); } @@ -1020,6 +1026,16 @@ 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 532ee9fca878..5b4092e5f291 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