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 X-Spam-Level: X-Spam-Status: No, score=-15.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 C463CC761A9 for ; Fri, 26 Jul 2019 22:46:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 96A6B22CC0 for ; Fri, 26 Jul 2019 22:46:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="JygJEQOy"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="Hh5g3og9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 96A6B22CC0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=fZJKsa4m7FsRO1PzCz+DlRGhIgNlZ70O2YqUZURORXE=; b=JygJEQOytFNahm VW9gbGJiHt1b+MU3YAY5JvhJmUmJZ+a6WSngL3p2n1JdBYNPUJvnUJSsJJxl5NZdpgJZ6+cDEAUzo 7wtIk330uxjiTXA7zaCCZcApov9eV4sASrcwQWFvKSSw6kC/ktQ4/SvDXKpWmfSkfEHrSmaMpBrgF IMBUJmY8NjVSJ3EJ0Fl6I5Ao8yyrpJQL6LBPdlJElLcQ/8ll7ltbKHrFQyLH6gz5GFbuRu605CL+M appVQcVK2vMB7CrnWUrANkFl2hW5ozXsZN/LO7U6ZO5wZPC9N65HRQck0T5ymHo3yYAXkyUmKCh5C o5pP9DezeTu3HQ93Kubw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hr8yP-0005aZ-1Y; Fri, 26 Jul 2019 22:46:01 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hr8yK-0005Y6-VV for linux-mtd@lists.infradead.org; Fri, 26 Jul 2019 22:45:58 +0000 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 2E9E922C7E; Fri, 26 Jul 2019 22:45:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1564181156; bh=GzelVGHPqkbkaf9RW/Q47B0yPhCAPUbNJ2m3SxNTfR8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Hh5g3og90qEqztUsE2t9s4ZaGbo4PHm8PgOIZ7Cn88aQmQ9I09rlPTTjq97xIXllH AUGhcFEEwjX9yMubzc1MeH5jr9nKF7Yx1d3Bhyqy6AmzHwgH/My3CQdZT1V63fWgl1 8KH/yL2CJ6SuUTYu8mmJNGSxxSXoc65+TBganzjA= From: Eric Biggers To: linux-fscrypt@vger.kernel.org Subject: [PATCH v7 01/16] fs, fscrypt: move uapi definitions to new header Date: Fri, 26 Jul 2019 15:41:26 -0700 Message-Id: <20190726224141.14044-2-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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190726_154557_043799_24026512 X-CRM114-Status: GOOD ( 13.22 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Satya Tangirala , linux-api@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, keyrings@vger.kernel.org, linux-mtd@lists.infradead.org, linux-crypto@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, Paul Crowley Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Archived-At: List-Archive: From: Eric Biggers More fscrypt definitions are being added, and we shouldn't use a disproportionate amount of space in for fscrypt stuff. So move the fscrypt definitions to a new header . For source compatibility with existing userspace programs, still includes the new header. Signed-off-by: Eric Biggers --- MAINTAINERS | 1 + include/linux/fscrypt.h | 1 + include/uapi/linux/fs.h | 54 ++----------------------------- include/uapi/linux/fscrypt.h | 61 ++++++++++++++++++++++++++++++++++++ 4 files changed, 66 insertions(+), 51 deletions(-) create mode 100644 include/uapi/linux/fscrypt.h diff --git a/MAINTAINERS b/MAINTAINERS index 783569e3c4b48..e7c473fb08163 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6598,6 +6598,7 @@ T: git git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt.git S: Supported F: fs/crypto/ F: include/linux/fscrypt*.h +F: include/uapi/linux/fscrypt.h F: Documentation/filesystems/fscrypt.rst FSI SUBSYSTEM diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index bd8f207a2fb68..81c0c754f8b21 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -16,6 +16,7 @@ #include #include #include +#include #define FS_CRYPTO_BLOCK_SIZE 16 diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index 59c71fa8c553a..41bd84d25a980 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -13,6 +13,9 @@ #include #include #include +#ifndef __KERNEL__ +#include +#endif /* Use of MS_* flags within the kernel is restricted to core mount(2) code. */ #if !defined(__KERNEL__) @@ -212,57 +215,6 @@ struct fsxattr { #define FS_IOC_GETFSLABEL _IOR(0x94, 49, char[FSLABEL_MAX]) #define FS_IOC_SETFSLABEL _IOW(0x94, 50, char[FSLABEL_MAX]) -/* - * File system encryption support - */ -/* Policy provided via an ioctl on the topmost directory */ -#define FS_KEY_DESCRIPTOR_SIZE 8 - -#define FS_POLICY_FLAGS_PAD_4 0x00 -#define FS_POLICY_FLAGS_PAD_8 0x01 -#define FS_POLICY_FLAGS_PAD_16 0x02 -#define FS_POLICY_FLAGS_PAD_32 0x03 -#define FS_POLICY_FLAGS_PAD_MASK 0x03 -#define FS_POLICY_FLAG_DIRECT_KEY 0x04 /* use master key directly */ -#define FS_POLICY_FLAGS_VALID 0x07 - -/* Encryption algorithms */ -#define FS_ENCRYPTION_MODE_INVALID 0 -#define FS_ENCRYPTION_MODE_AES_256_XTS 1 -#define FS_ENCRYPTION_MODE_AES_256_GCM 2 -#define FS_ENCRYPTION_MODE_AES_256_CBC 3 -#define FS_ENCRYPTION_MODE_AES_256_CTS 4 -#define FS_ENCRYPTION_MODE_AES_128_CBC 5 -#define FS_ENCRYPTION_MODE_AES_128_CTS 6 -#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 /* Removed, do not use. */ -#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 /* Removed, do not use. */ -#define FS_ENCRYPTION_MODE_ADIANTUM 9 - -struct fscrypt_policy { - __u8 version; - __u8 contents_encryption_mode; - __u8 filenames_encryption_mode; - __u8 flags; - __u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE]; -}; - -#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy) -#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16]) -#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy) - -/* Parameters for passing an encryption key into the kernel keyring */ -#define FS_KEY_DESC_PREFIX "fscrypt:" -#define FS_KEY_DESC_PREFIX_SIZE 8 - -/* Structure that userspace passes to the kernel keyring */ -#define FS_MAX_KEY_SIZE 64 - -struct fscrypt_key { - __u32 mode; - __u8 raw[FS_MAX_KEY_SIZE]; - __u32 size; -}; - /* * Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS) * diff --git a/include/uapi/linux/fscrypt.h b/include/uapi/linux/fscrypt.h new file mode 100644 index 0000000000000..26f6d2c19afd3 --- /dev/null +++ b/include/uapi/linux/fscrypt.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * fscrypt user API + * + * These ioctls can be used on filesystems that support fscrypt. See the + * "User API" section of Documentation/filesystems/fscrypt.rst. + */ +#ifndef _UAPI_LINUX_FSCRYPT_H +#define _UAPI_LINUX_FSCRYPT_H + +#include + +#define FS_KEY_DESCRIPTOR_SIZE 8 + +/* Encryption policy flags */ +#define FS_POLICY_FLAGS_PAD_4 0x00 +#define FS_POLICY_FLAGS_PAD_8 0x01 +#define FS_POLICY_FLAGS_PAD_16 0x02 +#define FS_POLICY_FLAGS_PAD_32 0x03 +#define FS_POLICY_FLAGS_PAD_MASK 0x03 +#define FS_POLICY_FLAG_DIRECT_KEY 0x04 /* use master key directly */ +#define FS_POLICY_FLAGS_VALID 0x07 + +/* Encryption algorithms */ +#define FS_ENCRYPTION_MODE_INVALID 0 +#define FS_ENCRYPTION_MODE_AES_256_XTS 1 +#define FS_ENCRYPTION_MODE_AES_256_GCM 2 +#define FS_ENCRYPTION_MODE_AES_256_CBC 3 +#define FS_ENCRYPTION_MODE_AES_256_CTS 4 +#define FS_ENCRYPTION_MODE_AES_128_CBC 5 +#define FS_ENCRYPTION_MODE_AES_128_CTS 6 +#define FS_ENCRYPTION_MODE_SPECK128_256_XTS 7 /* Removed, do not use. */ +#define FS_ENCRYPTION_MODE_SPECK128_256_CTS 8 /* Removed, do not use. */ +#define FS_ENCRYPTION_MODE_ADIANTUM 9 + +struct fscrypt_policy { + __u8 version; + __u8 contents_encryption_mode; + __u8 filenames_encryption_mode; + __u8 flags; + __u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE]; +}; + +#define FS_IOC_SET_ENCRYPTION_POLICY _IOR('f', 19, struct fscrypt_policy) +#define FS_IOC_GET_ENCRYPTION_PWSALT _IOW('f', 20, __u8[16]) +#define FS_IOC_GET_ENCRYPTION_POLICY _IOW('f', 21, struct fscrypt_policy) + +/* Parameters for passing an encryption key into the kernel keyring */ +#define FS_KEY_DESC_PREFIX "fscrypt:" +#define FS_KEY_DESC_PREFIX_SIZE 8 + +/* Structure that userspace passes to the kernel keyring */ +#define FS_MAX_KEY_SIZE 64 + +struct fscrypt_key { + __u32 mode; + __u8 raw[FS_MAX_KEY_SIZE]; + __u32 size; +}; + +#endif /* _UAPI_LINUX_FSCRYPT_H */ -- 2.22.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/