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49 #ifdef OPENSSL_OPENBSD_DEV_CRYPTO
54 #include <sys/ioctl.h>
55 #include <crypto/cryptodev.h>
57 #include <openssl/evp.h>
58 #include <openssl/objects.h>
62 // longest key supported in hardware
66 static int dev_failed;
68 static void err(const char *str)
70 fprintf(stderr,"%s: errno %d\n",str,errno);
73 static int dev_crypto_init(EVP_CIPHER_CTX *ctx)
81 if ((cryptodev_fd=open("/dev/crypto",O_RDWR,0)) < 0)
87 if (ioctl(cryptodev_fd,CRIOGET,&fd) == -1)
89 err("CRIOGET failed");
96 if(!ctx->c.dev_crypto)
98 ctx->c.dev_crypto=OPENSSL_malloc(sizeof *ctx->c.dev_crypto);
99 memset(ctx->c.dev_crypto,'\0',sizeof *ctx->c.dev_crypto);
100 ctx->c.dev_crypto->key=OPENSSL_malloc(MAX_HW_KEY);
106 static int dev_crypto_cleanup(EVP_CIPHER_CTX *ctx)
108 if(ioctl(fd,CIOCFSESSION,ctx->c.dev_crypto->ses) == -1)
109 err("CIOCFSESSION failed");
111 OPENSSL_free(ctx->c.dev_crypto->key);
112 OPENSSL_free(ctx->c.dev_crypto);
113 ctx->c.dev_crypto=NULL;
118 // FIXME: there should be some non-fatal way to report we fell back to s/w?
119 static int dev_crypto_des_ede3_init_key(EVP_CIPHER_CTX *ctx,
120 const unsigned char *key,
121 const unsigned char *iv, int enc)
123 if(!dev_crypto_init(ctx))
125 // fall back to using software...
126 ctx->cipher=EVP_des_ede3_cbc();
127 return ctx->cipher->init(ctx,key,iv,enc);
129 memcpy(ctx->c.dev_crypto->key,key,24);
131 ctx->c.dev_crypto->cipher=CRYPTO_3DES_CBC;
132 ctx->c.dev_crypto->mac=0;
133 ctx->c.dev_crypto->keylen=24;
135 if (ioctl(fd,CIOCGSESSION,ctx->c.dev_crypto) == -1)
137 err("CIOCGSESSION failed");
138 // fall back to using software...
139 dev_crypto_cleanup(ctx);
140 ctx->cipher=EVP_des_ede3_cbc();
141 return ctx->cipher->init(ctx,key,iv,enc);
146 static int dev_crypto_des_ede3_cbc_cipher(EVP_CIPHER_CTX *ctx,
148 const unsigned char *in,
151 struct crypt_op cryp;
154 assert(ctx->c.dev_crypto);
157 memset(&cryp,'\0',sizeof cryp);
158 cryp.ses=ctx->c.dev_crypto->ses;
159 cryp.op=ctx->encrypt ? COP_ENCRYPT : COP_DECRYPT;
161 // cryp.len=((inl+7)/8)*8;
163 assert((inl&7) == 0);
164 cryp.src=(caddr_t)in;
165 cryp.dst=(caddr_t)out;
167 cryp.iv=(caddr_t)ctx->iv;
170 memcpy(lb,&in[cryp.len-8],8);
172 if (ioctl(fd, CIOCCRYPT, &cryp) == -1)
174 err("CIOCCRYPT failed");
180 memcpy(ctx->iv,&out[cryp.len-8],8);
182 memcpy(ctx->iv,lb,8);
187 BLOCK_CIPHER_def_cbc(dev_crypto_des_ede3, des_ede,NID_des_ede3, 8, 24, 8,
188 0, dev_crypto_des_ede3_init_key,
190 EVP_CIPHER_set_asn1_iv,
191 EVP_CIPHER_get_asn1_iv,