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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AED92C433EF for ; Thu, 31 Mar 2022 15:32:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238541AbiCaPeF (ORCPT ); Thu, 31 Mar 2022 11:34:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52036 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235860AbiCaPdn (ORCPT ); Thu, 31 Mar 2022 11:33:43 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 107A42220D1; Thu, 31 Mar 2022 08:31:42 -0700 (PDT) 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 ams.source.kernel.org (Postfix) with ESMTPS id A38F1B82011; Thu, 31 Mar 2022 15:31:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A328FC340ED; Thu, 31 Mar 2022 15:31:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1648740700; bh=vDtZXn/ZiNvmpJIRkD0PuasEdD1hRQt58Off0VmCv2U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rUyGb48YBNlXpEL3RSwl1Vak9Jq9C9hBoC+vWsLUSmOhgB46ru38d/xb26cC0FwPU qY87OpB8pyxzaEsCQX6JL9hYsBYKbiu/85ugFHVAU5I2OxDUxb4P1UJcMFZlWa3vjE mMUti0AOFXo42bbBvKJ4luJNRDym9e9uO267sLdA7g8RA8JfiP1kFfdQzBOsM1Ijy+ afdmrBpvmLH4QLjPZ8yD9vzfrUJRkCgPq6Shu3rbCKD+Har/B4XCQLthV4QYRUQQI4 /52BZ1HRkzVhkLO50Dj1x30FWtHYKijwC7dJ31aBmsIYlpeGWhaZF66gcu0ybaLnnl 4djmiWk396T2A== From: Jeff Layton To: ceph-devel@vger.kernel.org Cc: xiubli@redhat.com, idryomov@gmail.com, lhenriques@suse.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v12 08/54] ceph: add a has_stable_inodes operation for ceph Date: Thu, 31 Mar 2022 11:30:44 -0400 Message-Id: <20220331153130.41287-9-jlayton@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220331153130.41287-1-jlayton@kernel.org> References: <20220331153130.41287-1-jlayton@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ...and just have it return true. It should never change inode numbers out from under us, as they are baked into the object names. Tested-by: Luís Henriques Reviewed-by: Luís Henriques Signed-off-by: Jeff Layton --- fs/ceph/crypto.c | 11 +++++++++ fs/ceph/file.c | 2 ++ fs/ceph/inode.c | 18 +++++++++++++- fs/ceph/mds_client.c | 57 ++++++++++++++++++++++++++++++++++++++++++++ fs/ceph/mds_client.h | 4 ++++ fs/ceph/super.h | 6 +++++ 6 files changed, 97 insertions(+), 1 deletion(-) diff --git a/fs/ceph/crypto.c b/fs/ceph/crypto.c index d1a6595a810f..3ec01702e7be 100644 --- a/fs/ceph/crypto.c +++ b/fs/ceph/crypto.c @@ -57,6 +57,11 @@ static int ceph_crypt_set_context(struct inode *inode, const void *ctx, size_t l return ret; } +static const union fscrypt_policy *ceph_get_dummy_policy(struct super_block *sb) +{ + return ceph_sb_to_client(sb)->dummy_enc_policy.policy; +} + static bool ceph_crypt_empty_dir(struct inode *inode) { struct ceph_inode_info *ci = ceph_inode(inode); @@ -64,11 +69,17 @@ static bool ceph_crypt_empty_dir(struct inode *inode) return ci->i_rsubdirs + ci->i_rfiles == 1; } +static bool ceph_crypt_has_stable_inodes(struct super_block *sb) +{ + return true; +} + static struct fscrypt_operations ceph_fscrypt_ops = { .key_prefix = "ceph:", .get_context = ceph_crypt_get_context, .set_context = ceph_crypt_set_context, .empty_dir = ceph_crypt_empty_dir, + .has_stable_inodes = ceph_crypt_has_stable_inodes, }; void ceph_fscrypt_set_ops(struct super_block *sb) diff --git a/fs/ceph/file.c b/fs/ceph/file.c index cccf729b55a8..5832dcea2d8c 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -629,6 +629,8 @@ 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 9b333e9966f0..216e90779a55 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -615,7 +615,10 @@ 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; @@ -626,6 +629,9 @@ 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); } @@ -1026,6 +1032,16 @@ 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 7aa253be7edc..cd7ad033492b 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -184,8 +184,52 @@ 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_auth_len = 0; + info->fscrypt_file = NULL; + info->fscrypt_file_len = 0; + 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); @@ -650,8 +694,21 @@ 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 2e945979a2e0..96d726ee5250 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 f23e49f46440..e12e5b484564 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -438,6 +438,12 @@ 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 -- 2.35.1