| /* |
| * Copyright (c) 2018 Sean Eric Fagan <sef@ixsystems.com> |
| * Portions Copyright (c) 2005-2011 Pawel Jakub Dawidek <pawel@dawidek.net> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * Portions of this file were taken from GELI's implementation of hmac. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _ZFS_FREEBSD_CRYPTO_H |
| #define _ZFS_FREEBSD_CRYPTO_H |
| |
| #include <sys/errno.h> |
| #include <sys/mutex.h> |
| #include <opencrypto/cryptodev.h> |
| #include <crypto/sha2/sha256.h> |
| #include <crypto/sha2/sha512.h> |
| |
| #define SUN_CKM_AES_CCM "CKM_AES_CCM" |
| #define SUN_CKM_AES_GCM "CKM_AES_GCM" |
| #define SUN_CKM_SHA512_HMAC "CKM_SHA512_HMAC" |
| |
| #define CRYPTO_KEY_RAW 1 |
| |
| #define CRYPTO_BITS2BYTES(n) ((n) == 0 ? 0 : (((n) - 1) >> 3) + 1) |
| #define CRYPTO_BYTES2BITS(n) ((n) << 3) |
| |
| struct zio_crypt_info; |
| |
| typedef struct freebsd_crypt_session { |
| struct mtx fs_lock; |
| crypto_session_t fs_sid; |
| boolean_t fs_done; |
| } freebsd_crypt_session_t; |
| |
| /* |
| * Unused types to minimize code differences. |
| */ |
| typedef void *crypto_mechanism_t; |
| typedef void *crypto_ctx_template_t; |
| /* |
| * Unlike the ICP crypto_key type, this only |
| * supports <data, length> (the equivalent of |
| * CRYPTO_KEY_RAW). |
| */ |
| typedef struct crypto_key { |
| int ck_format; /* Unused, but minimizes code diff */ |
| void *ck_data; |
| size_t ck_length; |
| } crypto_key_t; |
| |
| typedef struct hmac_ctx { |
| SHA512_CTX innerctx; |
| SHA512_CTX outerctx; |
| } *crypto_context_t; |
| |
| /* |
| * The only algorithm ZFS uses for hashing is SHA512_HMAC. |
| */ |
| void crypto_mac(const crypto_key_t *key, const void *in_data, |
| size_t in_data_size, void *out_data, size_t out_data_size); |
| void crypto_mac_init(struct hmac_ctx *ctx, const crypto_key_t *key); |
| void crypto_mac_update(struct hmac_ctx *ctx, const void *data, |
| size_t data_size); |
| void crypto_mac_final(struct hmac_ctx *ctx, void *out_data, |
| size_t out_data_size); |
| |
| int freebsd_crypt_newsession(freebsd_crypt_session_t *sessp, |
| struct zio_crypt_info *, crypto_key_t *); |
| void freebsd_crypt_freesession(freebsd_crypt_session_t *sessp); |
| |
| int freebsd_crypt_uio(boolean_t, freebsd_crypt_session_t *, |
| struct zio_crypt_info *, zfs_uio_t *, crypto_key_t *, uint8_t *, |
| size_t, size_t); |
| |
| #endif /* _ZFS_FREEBSD_CRYPTO_H */ |