FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/include/os/freebsd/zfs/sys/freebsd_crypto.h

     /*
      * 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_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;
    /*
     * Like the ICP crypto_key type, this only
     * supports <data, length> (the equivalent of
     * the former CRYPTO_KEY_RAW).
     */
    typedef struct crypto_key {
            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,
        const 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 *,
            const struct zio_crypt_info *, zfs_uio_t *, crypto_key_t *, uint8_t *,
            size_t, size_t);
    
    #endif /* _ZFS_FREEBSD_CRYPTO_H */

Cache object: 01e3bcb8066f0eba2daeb3bd7a1a382d