FreeBSD/Linux Kernel Cross Reference
sys/opencrypto/xform.h

     /*      $NetBSD: xform.h,v 1.5 2003/08/27 00:20:57 thorpej Exp $ */
     /*      $FreeBSD: src/sys/opencrypto/xform.h,v 1.1.2.1 2002/11/21 23:34:23 sam Exp $    */
     /*      $OpenBSD: xform.h,v 1.10 2002/04/22 23:10:09 deraadt Exp $      */
     
     /*
      * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
      *
      * This code was written by Angelos D. Keromytis in Athens, Greece, in
      * February 2000. Network Security Technologies Inc. (NSTI) kindly
     * supported the development of this code.
     *
     * Copyright (c) 2000 Angelos D. Keromytis
     *
     * Permission to use, copy, and modify this software with or without fee
     * is hereby granted, provided that this entire notice is included in
     * all source code copies of any software which is or includes a copy or
     * modification of this software.
     *
     * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
     * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
     * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
     * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
     * PURPOSE.
     */
    
    #ifndef _CRYPTO_XFORM_H_
    #define _CRYPTO_XFORM_H_
    
    #include <sys/md5.h>
    #include <sys/sha1.h>
    #include <crypto/sha2/sha2.h>
    #include <crypto/ripemd160/rmd160.h>
    
    /* Declarations */
    struct auth_hash {
            int type;
            char *name;
            u_int16_t keysize;
            u_int16_t hashsize;
            u_int16_t authsize;
            u_int16_t ctxsize;
            void (*Init) (void *);
            int  (*Update) (void *, const u_int8_t *, u_int16_t);
            void (*Final) (u_int8_t *, void *);
    };
    
    /* Provide array-limit for clients (e.g., netipsec) */
    #define AH_ALEN_MAX     20      /* max authenticator hash length */
    
    struct enc_xform {
            int type;
            char *name;
            u_int16_t blocksize;
            u_int16_t minkey, maxkey;
            void (*encrypt) (caddr_t, u_int8_t *);
            void (*decrypt) (caddr_t, u_int8_t *);
            int (*setkey) (u_int8_t **, const u_int8_t *, int len);
            void (*zerokey) (u_int8_t **);
    };
    
    struct comp_algo {
            int type;
            char *name;
            size_t minlen;
            u_int32_t (*compress) (u_int8_t *, u_int32_t, u_int8_t **);
            u_int32_t (*decompress) (u_int8_t *, u_int32_t, u_int8_t **);
    };
    
    union authctx {
            MD5_CTX md5ctx;
            SHA1_CTX sha1ctx;
            RMD160_CTX rmd160ctx;
            SHA256_CTX sha256ctx;
            SHA384_CTX sha384ctx;
            SHA512_CTX sha512ctx;
    };
    
    extern struct enc_xform enc_xform_null;
    extern struct enc_xform enc_xform_des;
    extern struct enc_xform enc_xform_3des;
    extern struct enc_xform enc_xform_blf;
    extern struct enc_xform enc_xform_cast5;
    extern struct enc_xform enc_xform_skipjack;
    extern struct enc_xform enc_xform_rijndael128;
    extern struct enc_xform enc_xform_arc4;
    
    extern struct auth_hash auth_hash_null;
    extern struct auth_hash auth_hash_md5;
    extern struct auth_hash auth_hash_sha1;
    extern struct auth_hash auth_hash_key_md5;
    extern struct auth_hash auth_hash_key_sha1;
    extern struct auth_hash auth_hash_hmac_md5_96;
    extern struct auth_hash auth_hash_hmac_sha1_96;
    extern struct auth_hash auth_hash_hmac_ripemd_160_96;
    extern struct auth_hash auth_hash_hmac_sha2_256;
    extern struct auth_hash auth_hash_hmac_sha2_384;
    extern struct auth_hash auth_hash_hmac_sha2_512;
    
    extern struct comp_algo comp_algo_deflate;
   
   #ifdef _KERNEL
   #include <sys/malloc.h>
   MALLOC_DECLARE(M_XDATA);
   #endif
   #endif /* _CRYPTO_XFORM_H_ */

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