From patchwork Fri Jul 26 22:41:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 11061915 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 49CAD746 for ; Fri, 26 Jul 2019 22:46:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4115628B20 for ; Fri, 26 Jul 2019 22:46:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 35CC628B5D; Fri, 26 Jul 2019 22:46:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DE2B028B5C for ; Fri, 26 Jul 2019 22:46:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387616AbfGZWqF (ORCPT ); Fri, 26 Jul 2019 18:46:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:52478 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387559AbfGZWqD (ORCPT ); Fri, 26 Jul 2019 18:46:03 -0400 Received: from sol.localdomain (c-24-5-143-220.hsd1.ca.comcast.net [24.5.143.220]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B149C22CD7; Fri, 26 Jul 2019 22:46:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564181162; bh=2BBPza+X6s9HoVjl/k6SG6IYumBX/0JWPy7d6aCs5pU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pOmFFPZy4cDjxF2UBzMYJxIAzVIr34gNLkvF+tLg96WX94dSdjpkESZRsuyfhPM07 IzfMPJKFE2tYVrBKIDLBtKLoXggz/5JRCofQEIlSOo1iqAx9ZGJKTkmnVlV4NycbC4 VXBTruid7tWv1XDYMUzgYlhRLYqT6d/c+ZLG/TSw= From: Eric Biggers To: linux-fscrypt@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-mtd@lists.infradead.org, linux-api@vger.kernel.org, linux-crypto@vger.kernel.org, keyrings@vger.kernel.org, Paul Crowley , Satya Tangirala Subject: [PATCH v7 13/16] ext4: wire up new fscrypt ioctls Date: Fri, 26 Jul 2019 15:41:38 -0700 Message-Id: <20190726224141.14044-14-ebiggers@kernel.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190726224141.14044-1-ebiggers@kernel.org> References: <20190726224141.14044-1-ebiggers@kernel.org> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Eric Biggers Wire up the new ioctls for adding and removing fscrypt keys to/from the filesystem, and the new ioctl for retrieving v2 encryption policies. FS_IOC_REMOVE_ENCRYPTION_KEY also required making ext4_drop_inode() call fscrypt_drop_inode(). For more details see Documentation/filesystems/fscrypt.rst and the fscrypt patches that added the implementation of these ioctls. Signed-off-by: Eric Biggers Reviewed-by: Theodore Ts'o --- fs/ext4/ioctl.c | 24 ++++++++++++++++++++++++ fs/ext4/super.c | 3 +++ 2 files changed, 27 insertions(+) diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 442f7ef873fc3..616fcf9eb52ec 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -1115,6 +1115,26 @@ long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) case EXT4_IOC_GET_ENCRYPTION_POLICY: return fscrypt_ioctl_get_policy(filp, (void __user *)arg); + case FS_IOC_GET_ENCRYPTION_POLICY_EX: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg); + + case FS_IOC_ADD_ENCRYPTION_KEY: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_add_key(filp, (void __user *)arg); + + case FS_IOC_REMOVE_ENCRYPTION_KEY: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_remove_key(filp, (const void __user *)arg); + + case FS_IOC_GET_ENCRYPTION_KEY_STATUS: + if (!ext4_has_feature_encrypt(sb)) + return -EOPNOTSUPP; + return fscrypt_ioctl_get_key_status(filp, (void __user *)arg); + case EXT4_IOC_FSGETXATTR: { struct fsxattr fa; @@ -1231,6 +1251,10 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case EXT4_IOC_SET_ENCRYPTION_POLICY: case EXT4_IOC_GET_ENCRYPTION_PWSALT: case EXT4_IOC_GET_ENCRYPTION_POLICY: + case FS_IOC_GET_ENCRYPTION_POLICY_EX: + case FS_IOC_ADD_ENCRYPTION_KEY: + case FS_IOC_REMOVE_ENCRYPTION_KEY: + case FS_IOC_GET_ENCRYPTION_KEY_STATUS: case EXT4_IOC_SHUTDOWN: case FS_IOC_GETFSMAP: break; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 4079605d437ae..757819139b8f7 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1107,6 +1107,9 @@ static int ext4_drop_inode(struct inode *inode) { int drop = generic_drop_inode(inode); + if (!drop) + drop = fscrypt_drop_inode(inode); + trace_ext4_drop_inode(inode, drop); return drop; }