1 /* Written by Ben Laurie, 2001 */
3 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 #ifdef OPENSSL_OPENBSD_DEV_CRYPTO
55 #include <sys/ioctl.h>
56 #include <crypto/cryptodev.h>
58 #include <openssl/evp.h>
59 #include <openssl/objects.h>
63 /* longest key supported in hardware */
68 static int dev_failed;
70 typedef struct session_op session_op;
72 #define data(ctx) EVP_C_DATA(session_op,ctx)
74 static void err(const char *str)
76 fprintf(stderr,"%s: errno %d\n",str,errno);
79 static int dev_crypto_init(EVP_CIPHER_CTX *ctx)
87 if ((cryptodev_fd=open("/dev/crypto",O_RDWR,0)) < 0)
93 if (ioctl(cryptodev_fd,CRIOGET,&fd) == -1)
95 err("CRIOGET failed");
103 memset(data(ctx),'\0',sizeof *data(ctx));
104 data(ctx)->key=OPENSSL_malloc(MAX_HW_KEY);
109 static int dev_crypto_cleanup(EVP_CIPHER_CTX *ctx)
111 printf("Cleanup %d\n",data(ctx)->ses);
112 if(ioctl(fd,CIOCFSESSION,&data(ctx)->ses) == -1)
113 err("CIOCFSESSION failed");
115 OPENSSL_free(data(ctx)->key);
120 /* FIXME: there should be some non-fatal way to report we fell back to s/w? */
121 static int dev_crypto_init_key(EVP_CIPHER_CTX *ctx,int cipher,
122 const unsigned char *key,int klen)
124 if(!dev_crypto_init(ctx))
127 assert(ctx->cipher->iv_len <= MAX_HW_IV);
129 memcpy(data(ctx)->key,key,klen);
131 data(ctx)->cipher=cipher;
133 data(ctx)->keylen=klen;
135 if (ioctl(fd,CIOCGSESSION,data(ctx)) == -1)
137 err("CIOCGSESSION failed");
140 printf("Init %d\n",data(ctx)->ses);
144 static int dev_crypto_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
145 const unsigned char *in,unsigned int inl)
147 struct crypt_op cryp;
148 unsigned char lb[MAX_HW_IV];
153 memset(&cryp,'\0',sizeof cryp);
154 cryp.ses=data(ctx)->ses;
155 cryp.op=ctx->encrypt ? COP_ENCRYPT : COP_DECRYPT;
158 assert((inl&ctx->cipher->block_size) == 0);
159 cryp.src=(caddr_t)in;
160 cryp.dst=(caddr_t)out;
162 if(ctx->cipher->iv_len)
163 cryp.iv=(caddr_t)ctx->iv;
166 memcpy(lb,&in[cryp.len-ctx->cipher->iv_len],ctx->cipher->iv_len);
168 if (ioctl(fd, CIOCCRYPT, &cryp) == -1)
170 err("CIOCCRYPT failed");
176 memcpy(ctx->iv,&out[cryp.len-ctx->cipher->iv_len],ctx->cipher->iv_len);
178 memcpy(ctx->iv,lb,ctx->cipher->iv_len);
183 static int dev_crypto_des_ede3_init_key(EVP_CIPHER_CTX *ctx,
184 const unsigned char *key,
185 const unsigned char *iv, int enc)
186 { return dev_crypto_init_key(ctx,CRYPTO_3DES_CBC,key,24); }
188 #define dev_crypto_des_ede3_cbc_cipher dev_crypto_cipher
190 BLOCK_CIPHER_def_cbc(dev_crypto_des_ede3, session_op, NID_des_ede3, 8, 24, 8,
191 0, dev_crypto_des_ede3_init_key,
193 EVP_CIPHER_set_asn1_iv,
194 EVP_CIPHER_get_asn1_iv,
197 static int dev_crypto_rc4_init_key(EVP_CIPHER_CTX *ctx,
198 const unsigned char *key,
199 const unsigned char *iv, int enc)
200 { return dev_crypto_init_key(ctx,CRYPTO_ARC4,key,16); }
202 static const EVP_CIPHER r4_cipher=
205 1,16,0, /* FIXME: key should be up to 256 bytes */
206 EVP_CIPH_VARIABLE_LENGTH,
207 dev_crypto_rc4_init_key,
216 const EVP_CIPHER *EVP_dev_crypto_rc4(void)
217 { return &r4_cipher; }
220 static void *dummy=&dummy;