The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*      $NetBSD: xform.h,v 1.5 2003/08/27 00:20:57 thorpej Exp $ */
    2 /*      $FreeBSD: src/sys/opencrypto/xform.h,v 1.1.2.1 2002/11/21 23:34:23 sam Exp $    */
    3 /*      $OpenBSD: xform.h,v 1.10 2002/04/22 23:10:09 deraadt Exp $      */
    4 
    5 /*
    6  * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
    7  *
    8  * This code was written by Angelos D. Keromytis in Athens, Greece, in
    9  * February 2000. Network Security Technologies Inc. (NSTI) kindly
   10  * supported the development of this code.
   11  *
   12  * Copyright (c) 2000 Angelos D. Keromytis
   13  *
   14  * Permission to use, copy, and modify this software with or without fee
   15  * is hereby granted, provided that this entire notice is included in
   16  * all source code copies of any software which is or includes a copy or
   17  * modification of this software.
   18  *
   19  * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
   20  * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
   21  * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
   22  * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
   23  * PURPOSE.
   24  */
   25 
   26 #ifndef _CRYPTO_XFORM_H_
   27 #define _CRYPTO_XFORM_H_
   28 
   29 #include <sys/md5.h>
   30 #include <sys/sha1.h>
   31 #include <crypto/sha2/sha2.h>
   32 #include <crypto/ripemd160/rmd160.h>
   33 
   34 /* Declarations */
   35 struct auth_hash {
   36         int type;
   37         char *name;
   38         u_int16_t keysize;
   39         u_int16_t hashsize;
   40         u_int16_t authsize;
   41         u_int16_t ctxsize;
   42         void (*Init) (void *);
   43         int  (*Update) (void *, const u_int8_t *, u_int16_t);
   44         void (*Final) (u_int8_t *, void *);
   45 };
   46 
   47 /* Provide array-limit for clients (e.g., netipsec) */
   48 #define AH_ALEN_MAX     20      /* max authenticator hash length */
   49 
   50 struct enc_xform {
   51         int type;
   52         char *name;
   53         u_int16_t blocksize;
   54         u_int16_t minkey, maxkey;
   55         void (*encrypt) (caddr_t, u_int8_t *);
   56         void (*decrypt) (caddr_t, u_int8_t *);
   57         int (*setkey) (u_int8_t **, const u_int8_t *, int len);
   58         void (*zerokey) (u_int8_t **);
   59 };
   60 
   61 struct comp_algo {
   62         int type;
   63         char *name;
   64         size_t minlen;
   65         u_int32_t (*compress) (u_int8_t *, u_int32_t, u_int8_t **);
   66         u_int32_t (*decompress) (u_int8_t *, u_int32_t, u_int8_t **);
   67 };
   68 
   69 union authctx {
   70         MD5_CTX md5ctx;
   71         SHA1_CTX sha1ctx;
   72         RMD160_CTX rmd160ctx;
   73         SHA256_CTX sha256ctx;
   74         SHA384_CTX sha384ctx;
   75         SHA512_CTX sha512ctx;
   76 };
   77 
   78 extern struct enc_xform enc_xform_null;
   79 extern struct enc_xform enc_xform_des;
   80 extern struct enc_xform enc_xform_3des;
   81 extern struct enc_xform enc_xform_blf;
   82 extern struct enc_xform enc_xform_cast5;
   83 extern struct enc_xform enc_xform_skipjack;
   84 extern struct enc_xform enc_xform_rijndael128;
   85 extern struct enc_xform enc_xform_arc4;
   86 
   87 extern struct auth_hash auth_hash_null;
   88 extern struct auth_hash auth_hash_md5;
   89 extern struct auth_hash auth_hash_sha1;
   90 extern struct auth_hash auth_hash_key_md5;
   91 extern struct auth_hash auth_hash_key_sha1;
   92 extern struct auth_hash auth_hash_hmac_md5_96;
   93 extern struct auth_hash auth_hash_hmac_sha1_96;
   94 extern struct auth_hash auth_hash_hmac_ripemd_160_96;
   95 extern struct auth_hash auth_hash_hmac_sha2_256;
   96 extern struct auth_hash auth_hash_hmac_sha2_384;
   97 extern struct auth_hash auth_hash_hmac_sha2_512;
   98 
   99 extern struct comp_algo comp_algo_deflate;
  100 
  101 #ifdef _KERNEL
  102 #include <sys/malloc.h>
  103 MALLOC_DECLARE(M_XDATA);
  104 #endif
  105 #endif /* _CRYPTO_XFORM_H_ */

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