[331] | 1 | /*
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| 2 | * Copyright 2002-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /*
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| 11 | * Copyright (c) 2002 Bob Beck <beck@openbsd.org>
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| 12 | * Copyright (c) 2002 Theo de Raadt
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| 13 | * Copyright (c) 2002 Markus Friedl
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| 14 | * All rights reserved.
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| 15 | *
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| 16 | * Redistribution and use in source and binary forms, with or without
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| 17 | * modification, are permitted provided that the following conditions
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| 18 | * are met:
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| 19 | * 1. Redistributions of source code must retain the above copyright
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| 20 | * notice, this list of conditions and the following disclaimer.
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| 21 | * 2. Redistributions in binary form must reproduce the above copyright
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| 22 | * notice, this list of conditions and the following disclaimer in the
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| 23 | * documentation and/or other materials provided with the distribution.
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| 24 | *
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| 25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
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| 26 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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| 27 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 28 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
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| 29 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 30 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 31 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 32 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 33 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 34 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 35 | *
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| 36 | */
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| 37 |
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| 38 | #include <openssl/objects.h>
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| 39 | #include <internal/engine.h>
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| 40 | #include <openssl/evp.h>
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| 41 | #include <openssl/bn.h>
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| 42 | #include <openssl/crypto.h>
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| 43 |
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| 44 | #if (defined(__unix__) || defined(unix)) && !defined(USG) && \
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| 45 | (defined(OpenBSD) || defined(__FreeBSD__))
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| 46 | # include <sys/param.h>
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| 47 | # if (OpenBSD >= 200112) || ((__FreeBSD_version >= 470101 && __FreeBSD_version < 500000) || __FreeBSD_version >= 500041)
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| 48 | # define HAVE_CRYPTODEV
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| 49 | # endif
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| 50 | # if (OpenBSD >= 200110)
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| 51 | # define HAVE_SYSLOG_R
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| 52 | # endif
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| 53 | #endif
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| 54 |
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| 55 | #include <sys/types.h>
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| 56 | #ifdef HAVE_CRYPTODEV
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| 57 | # include <crypto/cryptodev.h>
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| 58 | # include <sys/ioctl.h>
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| 59 | # include <errno.h>
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| 60 | # include <stdio.h>
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| 61 | # include <unistd.h>
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| 62 | # include <fcntl.h>
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| 63 | # include <stdarg.h>
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| 64 | # include <syslog.h>
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| 65 | # include <errno.h>
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| 66 | # include <string.h>
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| 67 | #endif
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| 68 | #include <openssl/dh.h>
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| 69 | #include <openssl/dsa.h>
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| 70 | #include <openssl/err.h>
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| 71 | #include <openssl/rsa.h>
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| 72 |
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| 73 | #ifndef HAVE_CRYPTODEV
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| 74 |
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| 75 | void engine_load_cryptodev_int(void)
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| 76 | {
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| 77 | /* This is a NOP on platforms without /dev/crypto */
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| 78 | return;
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| 79 | }
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| 80 |
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| 81 | #else
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| 82 |
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| 83 | struct dev_crypto_state {
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| 84 | struct session_op d_sess;
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| 85 | int d_fd;
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| 86 | # ifdef USE_CRYPTODEV_DIGESTS
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| 87 | char dummy_mac_key[HASH_MAX_LEN];
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| 88 | unsigned char digest_res[HASH_MAX_LEN];
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| 89 | char *mac_data;
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| 90 | int mac_len;
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| 91 | # endif
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| 92 | };
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| 93 |
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| 94 | static u_int32_t cryptodev_asymfeat = 0;
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| 95 |
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| 96 | static RSA_METHOD *cryptodev_rsa;
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| 97 | #ifndef OPENSSL_NO_DSA
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| 98 | static DSA_METHOD *cryptodev_dsa = NULL;
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| 99 | #endif
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| 100 | #ifndef OPENSSL_NO_DH
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| 101 | static DH_METHOD *cryptodev_dh;
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| 102 | #endif
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| 103 |
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| 104 | static int get_asym_dev_crypto(void);
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| 105 | static int open_dev_crypto(void);
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| 106 | static int get_dev_crypto(void);
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| 107 | static int get_cryptodev_ciphers(const int **cnids);
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| 108 | # ifdef USE_CRYPTODEV_DIGESTS
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| 109 | static int get_cryptodev_digests(const int **cnids);
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| 110 | # endif
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| 111 | static int cryptodev_usable_ciphers(const int **nids);
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| 112 | static int cryptodev_usable_digests(const int **nids);
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| 113 | static int cryptodev_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
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| 114 | const unsigned char *in, size_t inl);
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| 115 | static int cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
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| 116 | const unsigned char *iv, int enc);
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| 117 | static int cryptodev_cleanup(EVP_CIPHER_CTX *ctx);
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| 118 | static int cryptodev_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
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| 119 | const int **nids, int nid);
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| 120 | static int cryptodev_engine_digests(ENGINE *e, const EVP_MD **digest,
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| 121 | const int **nids, int nid);
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| 122 | static int bn2crparam(const BIGNUM *a, struct crparam *crp);
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| 123 | static int crparam2bn(struct crparam *crp, BIGNUM *a);
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| 124 | static void zapparams(struct crypt_kop *kop);
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| 125 | static int cryptodev_asym(struct crypt_kop *kop, int rlen, BIGNUM *r,
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| 126 | int slen, BIGNUM *s);
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| 127 |
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| 128 | static int cryptodev_bn_mod_exp(BIGNUM *r, const BIGNUM *a,
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| 129 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
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| 130 | BN_MONT_CTX *m_ctx);
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| 131 | static int cryptodev_rsa_nocrt_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
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| 132 | BN_CTX *ctx);
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| 133 | static int cryptodev_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
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| 134 | BN_CTX *ctx);
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| 135 | #ifndef OPENSSL_NO_DSA
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| 136 | static int cryptodev_dsa_bn_mod_exp(DSA *dsa, BIGNUM *r, const BIGNUM *a,
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| 137 | const BIGNUM *p, const BIGNUM *m,
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| 138 | BN_CTX *ctx, BN_MONT_CTX *m_ctx);
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| 139 | static int cryptodev_dsa_dsa_mod_exp(DSA *dsa, BIGNUM *t1, const BIGNUM *g,
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| 140 | const BIGNUM *u1, const BIGNUM *pub_key,
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| 141 | const BIGNUM *u2, const BIGNUM *p,
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| 142 | BN_CTX *ctx, BN_MONT_CTX *mont);
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| 143 | static DSA_SIG *cryptodev_dsa_do_sign(const unsigned char *dgst, int dlen,
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| 144 | DSA *dsa);
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| 145 | static int cryptodev_dsa_verify(const unsigned char *dgst, int dgst_len,
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| 146 | DSA_SIG *sig, DSA *dsa);
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| 147 | #endif
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| 148 | #ifndef OPENSSL_NO_DH
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| 149 | static int cryptodev_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
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| 150 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
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| 151 | BN_MONT_CTX *m_ctx);
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| 152 | static int cryptodev_dh_compute_key(unsigned char *key, const BIGNUM *pub_key,
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| 153 | DH *dh);
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| 154 | #endif
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| 155 | static int cryptodev_ctrl(ENGINE *e, int cmd, long i, void *p,
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| 156 | void (*f) (void));
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| 157 | void engine_load_cryptodev_int(void);
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| 158 |
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| 159 | static const ENGINE_CMD_DEFN cryptodev_defns[] = {
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| 160 | {0, NULL, NULL, 0}
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| 161 | };
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| 162 |
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| 163 | static struct {
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| 164 | int id;
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| 165 | int nid;
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| 166 | int ivmax;
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| 167 | int keylen;
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| 168 | } ciphers[] = {
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| 169 | {
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| 170 | CRYPTO_ARC4, NID_rc4, 0, 16,
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| 171 | },
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| 172 | {
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| 173 | CRYPTO_DES_CBC, NID_des_cbc, 8, 8,
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| 174 | },
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| 175 | {
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| 176 | CRYPTO_3DES_CBC, NID_des_ede3_cbc, 8, 24,
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| 177 | },
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| 178 | {
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| 179 | CRYPTO_AES_CBC, NID_aes_128_cbc, 16, 16,
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| 180 | },
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| 181 | {
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| 182 | CRYPTO_AES_CBC, NID_aes_192_cbc, 16, 24,
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| 183 | },
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| 184 | {
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| 185 | CRYPTO_AES_CBC, NID_aes_256_cbc, 16, 32,
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| 186 | },
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| 187 | # ifdef CRYPTO_AES_CTR
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| 188 | {
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| 189 | CRYPTO_AES_CTR, NID_aes_128_ctr, 14, 16,
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| 190 | },
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| 191 | {
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| 192 | CRYPTO_AES_CTR, NID_aes_192_ctr, 14, 24,
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| 193 | },
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| 194 | {
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| 195 | CRYPTO_AES_CTR, NID_aes_256_ctr, 14, 32,
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| 196 | },
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| 197 | # endif
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| 198 | {
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| 199 | CRYPTO_BLF_CBC, NID_bf_cbc, 8, 16,
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| 200 | },
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| 201 | {
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| 202 | CRYPTO_CAST_CBC, NID_cast5_cbc, 8, 16,
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| 203 | },
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| 204 | {
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| 205 | CRYPTO_SKIPJACK_CBC, NID_undef, 0, 0,
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| 206 | },
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| 207 | {
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| 208 | 0, NID_undef, 0, 0,
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| 209 | },
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| 210 | };
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| 211 |
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| 212 | # ifdef USE_CRYPTODEV_DIGESTS
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| 213 | static struct {
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| 214 | int id;
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| 215 | int nid;
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| 216 | int keylen;
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| 217 | } digests[] = {
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| 218 | {
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| 219 | CRYPTO_MD5_HMAC, NID_hmacWithMD5, 16
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| 220 | },
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| 221 | {
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| 222 | CRYPTO_SHA1_HMAC, NID_hmacWithSHA1, 20
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| 223 | },
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| 224 | {
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| 225 | CRYPTO_RIPEMD160_HMAC, NID_ripemd160, 16
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| 226 | /* ? */
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| 227 | },
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| 228 | {
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| 229 | CRYPTO_MD5_KPDK, NID_undef, 0
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| 230 | },
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| 231 | {
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| 232 | CRYPTO_SHA1_KPDK, NID_undef, 0
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| 233 | },
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| 234 | {
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| 235 | CRYPTO_MD5, NID_md5, 16
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| 236 | },
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| 237 | {
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| 238 | CRYPTO_SHA1, NID_sha1, 20
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| 239 | },
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| 240 | {
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| 241 | 0, NID_undef, 0
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| 242 | },
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| 243 | };
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| 244 | # endif
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| 245 |
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| 246 | /*
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| 247 | * Return a fd if /dev/crypto seems usable, 0 otherwise.
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| 248 | */
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| 249 | static int open_dev_crypto(void)
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| 250 | {
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| 251 | static int fd = -1;
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| 252 |
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| 253 | if (fd == -1) {
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| 254 | if ((fd = open("/dev/crypto", O_RDWR, 0)) == -1)
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| 255 | return (-1);
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| 256 | /* close on exec */
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| 257 | if (fcntl(fd, F_SETFD, 1) == -1) {
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| 258 | close(fd);
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| 259 | fd = -1;
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| 260 | return (-1);
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| 261 | }
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| 262 | }
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| 263 | return (fd);
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| 264 | }
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| 265 |
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| 266 | static int get_dev_crypto(void)
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| 267 | {
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| 268 | int fd, retfd;
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| 269 |
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| 270 | if ((fd = open_dev_crypto()) == -1)
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| 271 | return (-1);
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| 272 | # ifndef CRIOGET_NOT_NEEDED
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| 273 | if (ioctl(fd, CRIOGET, &retfd) == -1)
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| 274 | return (-1);
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| 275 |
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| 276 | /* close on exec */
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| 277 | if (fcntl(retfd, F_SETFD, 1) == -1) {
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| 278 | close(retfd);
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| 279 | return (-1);
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| 280 | }
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| 281 | # else
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| 282 | retfd = fd;
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| 283 | # endif
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| 284 | return (retfd);
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| 285 | }
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| 286 |
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| 287 | static void put_dev_crypto(int fd)
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| 288 | {
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| 289 | # ifndef CRIOGET_NOT_NEEDED
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| 290 | close(fd);
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| 291 | # endif
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| 292 | }
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| 293 |
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| 294 | /* Caching version for asym operations */
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| 295 | static int get_asym_dev_crypto(void)
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| 296 | {
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| 297 | static int fd = -1;
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| 298 |
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| 299 | if (fd == -1)
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| 300 | fd = get_dev_crypto();
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| 301 | return fd;
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| 302 | }
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| 303 |
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| 304 | /*
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| 305 | * Find out what ciphers /dev/crypto will let us have a session for.
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| 306 | * XXX note, that some of these openssl doesn't deal with yet!
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| 307 | * returning them here is harmless, as long as we return NULL
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| 308 | * when asked for a handler in the cryptodev_engine_ciphers routine
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| 309 | */
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| 310 | static int get_cryptodev_ciphers(const int **cnids)
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| 311 | {
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| 312 | static int nids[CRYPTO_ALGORITHM_MAX];
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| 313 | struct session_op sess;
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| 314 | int fd, i, count = 0;
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| 315 |
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| 316 | if ((fd = get_dev_crypto()) < 0) {
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| 317 | *cnids = NULL;
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| 318 | return (0);
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| 319 | }
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| 320 | memset(&sess, 0, sizeof(sess));
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| 321 | sess.key = (caddr_t) "123456789abcdefghijklmno";
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| 322 |
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| 323 | for (i = 0; ciphers[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
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| 324 | if (ciphers[i].nid == NID_undef)
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| 325 | continue;
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| 326 | sess.cipher = ciphers[i].id;
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| 327 | sess.keylen = ciphers[i].keylen;
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| 328 | sess.mac = 0;
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| 329 | if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
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| 330 | ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
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| 331 | nids[count++] = ciphers[i].nid;
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| 332 | }
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| 333 | put_dev_crypto(fd);
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| 334 |
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| 335 | if (count > 0)
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| 336 | *cnids = nids;
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| 337 | else
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| 338 | *cnids = NULL;
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| 339 | return (count);
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| 340 | }
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| 341 |
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| 342 | # ifdef USE_CRYPTODEV_DIGESTS
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| 343 | /*
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| 344 | * Find out what digests /dev/crypto will let us have a session for.
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| 345 | * XXX note, that some of these openssl doesn't deal with yet!
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| 346 | * returning them here is harmless, as long as we return NULL
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| 347 | * when asked for a handler in the cryptodev_engine_digests routine
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| 348 | */
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| 349 | static int get_cryptodev_digests(const int **cnids)
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| 350 | {
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| 351 | static int nids[CRYPTO_ALGORITHM_MAX];
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| 352 | struct session_op sess;
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| 353 | int fd, i, count = 0;
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| 354 |
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| 355 | if ((fd = get_dev_crypto()) < 0) {
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| 356 | *cnids = NULL;
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| 357 | return (0);
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| 358 | }
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| 359 | memset(&sess, 0, sizeof(sess));
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| 360 | sess.mackey = (caddr_t) "123456789abcdefghijklmno";
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| 361 | for (i = 0; digests[i].id && count < CRYPTO_ALGORITHM_MAX; i++) {
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| 362 | if (digests[i].nid == NID_undef)
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| 363 | continue;
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| 364 | sess.mac = digests[i].id;
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| 365 | sess.mackeylen = digests[i].keylen;
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| 366 | sess.cipher = 0;
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| 367 | if (ioctl(fd, CIOCGSESSION, &sess) != -1 &&
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| 368 | ioctl(fd, CIOCFSESSION, &sess.ses) != -1)
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| 369 | nids[count++] = digests[i].nid;
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| 370 | }
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| 371 | put_dev_crypto(fd);
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| 372 |
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| 373 | if (count > 0)
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| 374 | *cnids = nids;
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| 375 | else
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| 376 | *cnids = NULL;
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| 377 | return (count);
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| 378 | }
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| 379 | # endif /* 0 */
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| 380 |
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| 381 | /*
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| 382 | * Find the useable ciphers|digests from dev/crypto - this is the first
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| 383 | * thing called by the engine init crud which determines what it
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| 384 | * can use for ciphers from this engine. We want to return
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| 385 | * only what we can do, anything else is handled by software.
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| 386 | *
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| 387 | * If we can't initialize the device to do anything useful for
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| 388 | * any reason, we want to return a NULL array, and 0 length,
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| 389 | * which forces everything to be done is software. By putting
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| 390 | * the initialization of the device in here, we ensure we can
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| 391 | * use this engine as the default, and if for whatever reason
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| 392 | * /dev/crypto won't do what we want it will just be done in
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| 393 | * software
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| 394 | *
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| 395 | * This can (should) be greatly expanded to perhaps take into
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| 396 | * account speed of the device, and what we want to do.
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| 397 | * (although the disabling of particular alg's could be controlled
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| 398 | * by the device driver with sysctl's.) - this is where we
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| 399 | * want most of the decisions made about what we actually want
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| 400 | * to use from /dev/crypto.
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| 401 | */
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| 402 | static int cryptodev_usable_ciphers(const int **nids)
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| 403 | {
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| 404 | return (get_cryptodev_ciphers(nids));
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| 405 | }
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| 406 |
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| 407 | static int cryptodev_usable_digests(const int **nids)
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| 408 | {
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| 409 | # ifdef USE_CRYPTODEV_DIGESTS
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| 410 | return (get_cryptodev_digests(nids));
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| 411 | # else
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| 412 | /*
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| 413 | * XXXX just disable all digests for now, because it sucks.
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| 414 | * we need a better way to decide this - i.e. I may not
|
---|
| 415 | * want digests on slow cards like hifn on fast machines,
|
---|
| 416 | * but might want them on slow or loaded machines, etc.
|
---|
| 417 | * will also want them when using crypto cards that don't
|
---|
| 418 | * suck moose gonads - would be nice to be able to decide something
|
---|
| 419 | * as reasonable default without having hackery that's card dependent.
|
---|
| 420 | * of course, the default should probably be just do everything,
|
---|
| 421 | * with perhaps a sysctl to turn algorithms off (or have them off
|
---|
| 422 | * by default) on cards that generally suck like the hifn.
|
---|
| 423 | */
|
---|
| 424 | *nids = NULL;
|
---|
| 425 | return (0);
|
---|
| 426 | # endif
|
---|
| 427 | }
|
---|
| 428 |
|
---|
| 429 | static int
|
---|
| 430 | cryptodev_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
|
---|
| 431 | const unsigned char *in, size_t inl)
|
---|
| 432 | {
|
---|
| 433 | struct crypt_op cryp;
|
---|
| 434 | struct dev_crypto_state *state = EVP_CIPHER_CTX_get_cipher_data(ctx);
|
---|
| 435 | struct session_op *sess = &state->d_sess;
|
---|
| 436 | const void *iiv;
|
---|
| 437 | unsigned char save_iv[EVP_MAX_IV_LENGTH];
|
---|
| 438 |
|
---|
| 439 | if (state->d_fd < 0)
|
---|
| 440 | return (0);
|
---|
| 441 | if (!inl)
|
---|
| 442 | return (1);
|
---|
| 443 | if ((inl % EVP_CIPHER_CTX_block_size(ctx)) != 0)
|
---|
| 444 | return (0);
|
---|
| 445 |
|
---|
| 446 | memset(&cryp, 0, sizeof(cryp));
|
---|
| 447 |
|
---|
| 448 | cryp.ses = sess->ses;
|
---|
| 449 | cryp.flags = 0;
|
---|
| 450 | cryp.len = inl;
|
---|
| 451 | cryp.src = (caddr_t) in;
|
---|
| 452 | cryp.dst = (caddr_t) out;
|
---|
| 453 | cryp.mac = 0;
|
---|
| 454 |
|
---|
| 455 | cryp.op = EVP_CIPHER_CTX_encrypting(ctx) ? COP_ENCRYPT : COP_DECRYPT;
|
---|
| 456 |
|
---|
| 457 | if (EVP_CIPHER_CTX_iv_length(ctx) > 0) {
|
---|
| 458 | cryp.iv = (caddr_t) EVP_CIPHER_CTX_iv(ctx);
|
---|
| 459 | if (!EVP_CIPHER_CTX_encrypting(ctx)) {
|
---|
| 460 | iiv = in + inl - EVP_CIPHER_CTX_iv_length(ctx);
|
---|
| 461 | memcpy(save_iv, iiv, EVP_CIPHER_CTX_iv_length(ctx));
|
---|
| 462 | }
|
---|
| 463 | } else
|
---|
| 464 | cryp.iv = NULL;
|
---|
| 465 |
|
---|
| 466 | if (ioctl(state->d_fd, CIOCCRYPT, &cryp) == -1) {
|
---|
| 467 | /*
|
---|
| 468 | * XXX need better error handling this can fail for a number of
|
---|
| 469 | * different reasons.
|
---|
| 470 | */
|
---|
| 471 | return (0);
|
---|
| 472 | }
|
---|
| 473 |
|
---|
| 474 | if (EVP_CIPHER_CTX_iv_length(ctx) > 0) {
|
---|
| 475 | if (EVP_CIPHER_CTX_encrypting(ctx))
|
---|
| 476 | iiv = out + inl - EVP_CIPHER_CTX_iv_length(ctx);
|
---|
| 477 | else
|
---|
| 478 | iiv = save_iv;
|
---|
| 479 | memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iiv,
|
---|
| 480 | EVP_CIPHER_CTX_iv_length(ctx));
|
---|
| 481 | }
|
---|
| 482 | return (1);
|
---|
| 483 | }
|
---|
| 484 |
|
---|
| 485 | static int
|
---|
| 486 | cryptodev_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
|
---|
| 487 | const unsigned char *iv, int enc)
|
---|
| 488 | {
|
---|
| 489 | struct dev_crypto_state *state = EVP_CIPHER_CTX_get_cipher_data(ctx);
|
---|
| 490 | struct session_op *sess = &state->d_sess;
|
---|
| 491 | int cipher = -1, i;
|
---|
| 492 |
|
---|
| 493 | for (i = 0; ciphers[i].id; i++)
|
---|
| 494 | if (EVP_CIPHER_CTX_nid(ctx) == ciphers[i].nid &&
|
---|
| 495 | EVP_CIPHER_CTX_iv_length(ctx) <= ciphers[i].ivmax &&
|
---|
| 496 | EVP_CIPHER_CTX_key_length(ctx) == ciphers[i].keylen) {
|
---|
| 497 | cipher = ciphers[i].id;
|
---|
| 498 | break;
|
---|
| 499 | }
|
---|
| 500 |
|
---|
| 501 | if (!ciphers[i].id) {
|
---|
| 502 | state->d_fd = -1;
|
---|
| 503 | return (0);
|
---|
| 504 | }
|
---|
| 505 |
|
---|
| 506 | memset(sess, 0, sizeof(*sess));
|
---|
| 507 |
|
---|
| 508 | if ((state->d_fd = get_dev_crypto()) < 0)
|
---|
| 509 | return (0);
|
---|
| 510 |
|
---|
| 511 | sess->key = (caddr_t) key;
|
---|
| 512 | sess->keylen = EVP_CIPHER_CTX_key_length(ctx);
|
---|
| 513 | sess->cipher = cipher;
|
---|
| 514 |
|
---|
| 515 | if (ioctl(state->d_fd, CIOCGSESSION, sess) == -1) {
|
---|
| 516 | put_dev_crypto(state->d_fd);
|
---|
| 517 | state->d_fd = -1;
|
---|
| 518 | return (0);
|
---|
| 519 | }
|
---|
| 520 | return (1);
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 | /*
|
---|
| 524 | * free anything we allocated earlier when initing a
|
---|
| 525 | * session, and close the session.
|
---|
| 526 | */
|
---|
| 527 | static int cryptodev_cleanup(EVP_CIPHER_CTX *ctx)
|
---|
| 528 | {
|
---|
| 529 | int ret = 0;
|
---|
| 530 | struct dev_crypto_state *state = EVP_CIPHER_CTX_get_cipher_data(ctx);
|
---|
| 531 | struct session_op *sess = &state->d_sess;
|
---|
| 532 |
|
---|
| 533 | if (state->d_fd < 0)
|
---|
| 534 | return (0);
|
---|
| 535 |
|
---|
| 536 | /*
|
---|
| 537 | * XXX if this ioctl fails, something's wrong. the invoker may have called
|
---|
| 538 | * us with a bogus ctx, or we could have a device that for whatever
|
---|
| 539 | * reason just doesn't want to play ball - it's not clear what's right
|
---|
| 540 | * here - should this be an error? should it just increase a counter,
|
---|
| 541 | * hmm. For right now, we return 0 - I don't believe that to be "right".
|
---|
| 542 | * we could call the gorpy openssl lib error handlers that print messages
|
---|
| 543 | * to users of the library. hmm..
|
---|
| 544 | */
|
---|
| 545 |
|
---|
| 546 | if (ioctl(state->d_fd, CIOCFSESSION, &sess->ses) == -1) {
|
---|
| 547 | ret = 0;
|
---|
| 548 | } else {
|
---|
| 549 | ret = 1;
|
---|
| 550 | }
|
---|
| 551 | put_dev_crypto(state->d_fd);
|
---|
| 552 | state->d_fd = -1;
|
---|
| 553 |
|
---|
| 554 | return (ret);
|
---|
| 555 | }
|
---|
| 556 |
|
---|
| 557 | /*
|
---|
| 558 | * libcrypto EVP stuff - this is how we get wired to EVP so the engine
|
---|
| 559 | * gets called when libcrypto requests a cipher NID.
|
---|
| 560 | */
|
---|
| 561 |
|
---|
| 562 | /* RC4 */
|
---|
| 563 | static EVP_CIPHER *rc4_cipher = NULL;
|
---|
| 564 | static const EVP_CIPHER *cryptodev_rc4(void)
|
---|
| 565 | {
|
---|
| 566 | if (rc4_cipher == NULL) {
|
---|
| 567 | EVP_CIPHER *cipher;
|
---|
| 568 |
|
---|
| 569 | if ((cipher = EVP_CIPHER_meth_new(NID_rc4, 1, 16)) == NULL
|
---|
| 570 | || !EVP_CIPHER_meth_set_iv_length(cipher, 0)
|
---|
| 571 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_VARIABLE_LENGTH)
|
---|
| 572 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 573 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 574 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 575 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))) {
|
---|
| 576 | EVP_CIPHER_meth_free(cipher);
|
---|
| 577 | cipher = NULL;
|
---|
| 578 | }
|
---|
| 579 | rc4_cipher = cipher;
|
---|
| 580 | }
|
---|
| 581 | return rc4_cipher;
|
---|
| 582 | }
|
---|
| 583 |
|
---|
| 584 | /* DES CBC EVP */
|
---|
| 585 | static EVP_CIPHER *des_cbc_cipher = NULL;
|
---|
| 586 | static const EVP_CIPHER *cryptodev_des_cbc(void)
|
---|
| 587 | {
|
---|
| 588 | if (des_cbc_cipher == NULL) {
|
---|
| 589 | EVP_CIPHER *cipher;
|
---|
| 590 |
|
---|
| 591 | if ((cipher = EVP_CIPHER_meth_new(NID_des_cbc, 8, 8)) == NULL
|
---|
| 592 | || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
|
---|
| 593 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 594 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 595 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 596 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 597 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 598 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 599 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 600 | EVP_CIPHER_meth_free(cipher);
|
---|
| 601 | cipher = NULL;
|
---|
| 602 | }
|
---|
| 603 | des_cbc_cipher = cipher;
|
---|
| 604 | }
|
---|
| 605 | return des_cbc_cipher;
|
---|
| 606 | }
|
---|
| 607 |
|
---|
| 608 | /* 3DES CBC EVP */
|
---|
| 609 | static EVP_CIPHER *des3_cbc_cipher = NULL;
|
---|
| 610 | static const EVP_CIPHER *cryptodev_3des_cbc(void)
|
---|
| 611 | {
|
---|
| 612 | if (des3_cbc_cipher == NULL) {
|
---|
| 613 | EVP_CIPHER *cipher;
|
---|
| 614 |
|
---|
| 615 | if ((cipher = EVP_CIPHER_meth_new(NID_des_ede3_cbc, 8, 24)) == NULL
|
---|
| 616 | || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
|
---|
| 617 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 618 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 619 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 620 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 621 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 622 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 623 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 624 | EVP_CIPHER_meth_free(cipher);
|
---|
| 625 | cipher = NULL;
|
---|
| 626 | }
|
---|
| 627 | des3_cbc_cipher = cipher;
|
---|
| 628 | }
|
---|
| 629 | return des3_cbc_cipher;
|
---|
| 630 | }
|
---|
| 631 |
|
---|
| 632 | static EVP_CIPHER *bf_cbc_cipher = NULL;
|
---|
| 633 | static const EVP_CIPHER *cryptodev_bf_cbc(void)
|
---|
| 634 | {
|
---|
| 635 | if (bf_cbc_cipher == NULL) {
|
---|
| 636 | EVP_CIPHER *cipher;
|
---|
| 637 |
|
---|
| 638 | if ((cipher = EVP_CIPHER_meth_new(NID_bf_cbc, 8, 16)) == NULL
|
---|
| 639 | || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
|
---|
| 640 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 641 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 642 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 643 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 644 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 645 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 646 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 647 | EVP_CIPHER_meth_free(cipher);
|
---|
| 648 | cipher = NULL;
|
---|
| 649 | }
|
---|
| 650 | bf_cbc_cipher = cipher;
|
---|
| 651 | }
|
---|
| 652 | return bf_cbc_cipher;
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | static EVP_CIPHER *cast_cbc_cipher = NULL;
|
---|
| 656 | static const EVP_CIPHER *cryptodev_cast_cbc(void)
|
---|
| 657 | {
|
---|
| 658 | if (cast_cbc_cipher == NULL) {
|
---|
| 659 | EVP_CIPHER *cipher;
|
---|
| 660 |
|
---|
| 661 | if ((cipher = EVP_CIPHER_meth_new(NID_cast5_cbc, 8, 16)) == NULL
|
---|
| 662 | || !EVP_CIPHER_meth_set_iv_length(cipher, 8)
|
---|
| 663 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 664 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 665 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 666 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 667 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 668 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 669 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 670 | EVP_CIPHER_meth_free(cipher);
|
---|
| 671 | cipher = NULL;
|
---|
| 672 | }
|
---|
| 673 | cast_cbc_cipher = cipher;
|
---|
| 674 | }
|
---|
| 675 | return cast_cbc_cipher;
|
---|
| 676 | }
|
---|
| 677 |
|
---|
| 678 | static EVP_CIPHER *aes_cbc_cipher = NULL;
|
---|
| 679 | static const EVP_CIPHER *cryptodev_aes_cbc(void)
|
---|
| 680 | {
|
---|
| 681 | if (aes_cbc_cipher == NULL) {
|
---|
| 682 | EVP_CIPHER *cipher;
|
---|
| 683 |
|
---|
| 684 | if ((cipher = EVP_CIPHER_meth_new(NID_aes_128_cbc, 16, 16)) == NULL
|
---|
| 685 | || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
|
---|
| 686 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 687 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 688 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 689 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 690 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 691 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 692 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 693 | EVP_CIPHER_meth_free(cipher);
|
---|
| 694 | cipher = NULL;
|
---|
| 695 | }
|
---|
| 696 | aes_cbc_cipher = cipher;
|
---|
| 697 | }
|
---|
| 698 | return aes_cbc_cipher;
|
---|
| 699 | }
|
---|
| 700 |
|
---|
| 701 | static EVP_CIPHER *aes_192_cbc_cipher = NULL;
|
---|
| 702 | static const EVP_CIPHER *cryptodev_aes_192_cbc(void)
|
---|
| 703 | {
|
---|
| 704 | if (aes_192_cbc_cipher == NULL) {
|
---|
| 705 | EVP_CIPHER *cipher;
|
---|
| 706 |
|
---|
| 707 | if ((cipher = EVP_CIPHER_meth_new(NID_aes_192_cbc, 16, 24)) == NULL
|
---|
| 708 | || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
|
---|
| 709 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 710 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 711 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 712 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 713 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 714 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 715 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 716 | EVP_CIPHER_meth_free(cipher);
|
---|
| 717 | cipher = NULL;
|
---|
| 718 | }
|
---|
| 719 | aes_192_cbc_cipher = cipher;
|
---|
| 720 | }
|
---|
| 721 | return aes_192_cbc_cipher;
|
---|
| 722 | }
|
---|
| 723 |
|
---|
| 724 | static EVP_CIPHER *aes_256_cbc_cipher = NULL;
|
---|
| 725 | static const EVP_CIPHER *cryptodev_aes_256_cbc(void)
|
---|
| 726 | {
|
---|
| 727 | if (aes_256_cbc_cipher == NULL) {
|
---|
| 728 | EVP_CIPHER *cipher;
|
---|
| 729 |
|
---|
| 730 | if ((cipher = EVP_CIPHER_meth_new(NID_aes_256_cbc, 16, 32)) == NULL
|
---|
| 731 | || !EVP_CIPHER_meth_set_iv_length(cipher, 16)
|
---|
| 732 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CBC_MODE)
|
---|
| 733 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 734 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 735 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 736 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 737 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 738 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 739 | EVP_CIPHER_meth_free(cipher);
|
---|
| 740 | cipher = NULL;
|
---|
| 741 | }
|
---|
| 742 | aes_256_cbc_cipher = cipher;
|
---|
| 743 | }
|
---|
| 744 | return aes_256_cbc_cipher;
|
---|
| 745 | }
|
---|
| 746 |
|
---|
| 747 | # ifdef CRYPTO_AES_CTR
|
---|
| 748 | static EVP_CIPHER *aes_ctr_cipher = NULL;
|
---|
| 749 | static const EVP_CIPHER *cryptodev_aes_ctr(void)
|
---|
| 750 | {
|
---|
| 751 | if (aes_ctr_cipher == NULL) {
|
---|
| 752 | EVP_CIPHER *cipher;
|
---|
| 753 |
|
---|
| 754 | if ((cipher = EVP_CIPHER_meth_new(NID_aes_128_ctr, 16, 16)) == NULL
|
---|
| 755 | || !EVP_CIPHER_meth_set_iv_length(cipher, 14)
|
---|
| 756 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CTR_MODE)
|
---|
| 757 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 758 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 759 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 760 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 761 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 762 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 763 | EVP_CIPHER_meth_free(cipher);
|
---|
| 764 | cipher = NULL;
|
---|
| 765 | }
|
---|
| 766 | aes_ctr_cipher = cipher;
|
---|
| 767 | }
|
---|
| 768 | return aes_ctr_cipher;
|
---|
| 769 | }
|
---|
| 770 |
|
---|
| 771 | static EVP_CIPHER *aes_192_ctr_cipher = NULL;
|
---|
| 772 | static const EVP_CIPHER *cryptodev_aes_192_ctr(void)
|
---|
| 773 | {
|
---|
| 774 | if (aes_192_ctr_cipher == NULL) {
|
---|
| 775 | EVP_CIPHER *cipher;
|
---|
| 776 |
|
---|
| 777 | if ((cipher = EVP_CIPHER_meth_new(NID_aes_192_ctr, 16, 24)) == NULL
|
---|
| 778 | || !EVP_CIPHER_meth_set_iv_length(cipher, 14)
|
---|
| 779 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CTR_MODE)
|
---|
| 780 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 781 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 782 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 783 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 784 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 785 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 786 | EVP_CIPHER_meth_free(cipher);
|
---|
| 787 | cipher = NULL;
|
---|
| 788 | }
|
---|
| 789 | aes_192_ctr_cipher = cipher;
|
---|
| 790 | }
|
---|
| 791 | return aes_192_ctr_cipher;
|
---|
| 792 | }
|
---|
| 793 |
|
---|
| 794 | static EVP_CIPHER *aes_256_ctr_cipher = NULL;
|
---|
| 795 | static const EVP_CIPHER *cryptodev_aes_256_ctr(void)
|
---|
| 796 | {
|
---|
| 797 | if (aes_256_ctr_cipher == NULL) {
|
---|
| 798 | EVP_CIPHER *cipher;
|
---|
| 799 |
|
---|
| 800 | if ((cipher = EVP_CIPHER_meth_new(NID_aes_256_ctr, 16, 32)) == NULL
|
---|
| 801 | || !EVP_CIPHER_meth_set_iv_length(cipher, 14)
|
---|
| 802 | || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_CTR_MODE)
|
---|
| 803 | || !EVP_CIPHER_meth_set_init(cipher, cryptodev_init_key)
|
---|
| 804 | || !EVP_CIPHER_meth_set_do_cipher(cipher, cryptodev_cipher)
|
---|
| 805 | || !EVP_CIPHER_meth_set_cleanup(cipher, cryptodev_cleanup)
|
---|
| 806 | || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(struct dev_crypto_state))
|
---|
| 807 | || !EVP_CIPHER_meth_set_set_asn1_params(cipher, EVP_CIPHER_set_asn1_iv)
|
---|
| 808 | || !EVP_CIPHER_meth_set_get_asn1_params(cipher, EVP_CIPHER_get_asn1_iv)) {
|
---|
| 809 | EVP_CIPHER_meth_free(cipher);
|
---|
| 810 | cipher = NULL;
|
---|
| 811 | }
|
---|
| 812 | aes_256_ctr_cipher = cipher;
|
---|
| 813 | }
|
---|
| 814 | return aes_256_ctr_cipher;
|
---|
| 815 | }
|
---|
| 816 | # endif
|
---|
| 817 | /*
|
---|
| 818 | * Registered by the ENGINE when used to find out how to deal with
|
---|
| 819 | * a particular NID in the ENGINE. this says what we'll do at the
|
---|
| 820 | * top level - note, that list is restricted by what we answer with
|
---|
| 821 | */
|
---|
| 822 | static int
|
---|
| 823 | cryptodev_engine_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
|
---|
| 824 | const int **nids, int nid)
|
---|
| 825 | {
|
---|
| 826 | if (!cipher)
|
---|
| 827 | return (cryptodev_usable_ciphers(nids));
|
---|
| 828 |
|
---|
| 829 | switch (nid) {
|
---|
| 830 | case NID_rc4:
|
---|
| 831 | *cipher = cryptodev_rc4();
|
---|
| 832 | break;
|
---|
| 833 | case NID_des_ede3_cbc:
|
---|
| 834 | *cipher = cryptodev_3des_cbc();
|
---|
| 835 | break;
|
---|
| 836 | case NID_des_cbc:
|
---|
| 837 | *cipher = cryptodev_des_cbc();
|
---|
| 838 | break;
|
---|
| 839 | case NID_bf_cbc:
|
---|
| 840 | *cipher = cryptodev_bf_cbc();
|
---|
| 841 | break;
|
---|
| 842 | case NID_cast5_cbc:
|
---|
| 843 | *cipher = cryptodev_cast_cbc();
|
---|
| 844 | break;
|
---|
| 845 | case NID_aes_128_cbc:
|
---|
| 846 | *cipher = cryptodev_aes_cbc();
|
---|
| 847 | break;
|
---|
| 848 | case NID_aes_192_cbc:
|
---|
| 849 | *cipher = cryptodev_aes_192_cbc();
|
---|
| 850 | break;
|
---|
| 851 | case NID_aes_256_cbc:
|
---|
| 852 | *cipher = cryptodev_aes_256_cbc();
|
---|
| 853 | break;
|
---|
| 854 | # ifdef CRYPTO_AES_CTR
|
---|
| 855 | case NID_aes_128_ctr:
|
---|
| 856 | *cipher = cryptodev_aes_ctr();
|
---|
| 857 | break;
|
---|
| 858 | case NID_aes_192_ctr:
|
---|
| 859 | *cipher = cryptodev_aes_192_ctr();
|
---|
| 860 | break;
|
---|
| 861 | case NID_aes_256_ctr:
|
---|
| 862 | *cipher = cryptodev_aes_256_ctr();
|
---|
| 863 | break;
|
---|
| 864 | # endif
|
---|
| 865 | default:
|
---|
| 866 | *cipher = NULL;
|
---|
| 867 | break;
|
---|
| 868 | }
|
---|
| 869 | return (*cipher != NULL);
|
---|
| 870 | }
|
---|
| 871 |
|
---|
| 872 | # ifdef USE_CRYPTODEV_DIGESTS
|
---|
| 873 |
|
---|
| 874 | /* convert digest type to cryptodev */
|
---|
| 875 | static int digest_nid_to_cryptodev(int nid)
|
---|
| 876 | {
|
---|
| 877 | int i;
|
---|
| 878 |
|
---|
| 879 | for (i = 0; digests[i].id; i++)
|
---|
| 880 | if (digests[i].nid == nid)
|
---|
| 881 | return (digests[i].id);
|
---|
| 882 | return (0);
|
---|
| 883 | }
|
---|
| 884 |
|
---|
| 885 | static int digest_key_length(int nid)
|
---|
| 886 | {
|
---|
| 887 | int i;
|
---|
| 888 |
|
---|
| 889 | for (i = 0; digests[i].id; i++)
|
---|
| 890 | if (digests[i].nid == nid)
|
---|
| 891 | return digests[i].keylen;
|
---|
| 892 | return (0);
|
---|
| 893 | }
|
---|
| 894 |
|
---|
| 895 | static int cryptodev_digest_init(EVP_MD_CTX *ctx)
|
---|
| 896 | {
|
---|
| 897 | struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
|
---|
| 898 | struct session_op *sess = &state->d_sess;
|
---|
| 899 | int digest;
|
---|
| 900 |
|
---|
| 901 | if ((digest = digest_nid_to_cryptodev(EVP_MD_CTX_type(ctx))) == NID_undef) {
|
---|
| 902 | printf("cryptodev_digest_init: Can't get digest \n");
|
---|
| 903 | return (0);
|
---|
| 904 | }
|
---|
| 905 |
|
---|
| 906 | memset(state, 0, sizeof(*state));
|
---|
| 907 |
|
---|
| 908 | if ((state->d_fd = get_dev_crypto()) < 0) {
|
---|
| 909 | printf("cryptodev_digest_init: Can't get Dev \n");
|
---|
| 910 | return (0);
|
---|
| 911 | }
|
---|
| 912 |
|
---|
| 913 | sess->mackey = state->dummy_mac_key;
|
---|
| 914 | sess->mackeylen = digest_key_length(EVP_MD_CTX_type(ctx));
|
---|
| 915 | sess->mac = digest;
|
---|
| 916 |
|
---|
| 917 | if (ioctl(state->d_fd, CIOCGSESSION, sess) < 0) {
|
---|
| 918 | put_dev_crypto(state->d_fd);
|
---|
| 919 | state->d_fd = -1;
|
---|
| 920 | printf("cryptodev_digest_init: Open session failed\n");
|
---|
| 921 | return (0);
|
---|
| 922 | }
|
---|
| 923 |
|
---|
| 924 | return (1);
|
---|
| 925 | }
|
---|
| 926 |
|
---|
| 927 | static int cryptodev_digest_update(EVP_MD_CTX *ctx, const void *data,
|
---|
| 928 | size_t count)
|
---|
| 929 | {
|
---|
| 930 | struct crypt_op cryp;
|
---|
| 931 | struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
|
---|
| 932 | struct session_op *sess = &state->d_sess;
|
---|
| 933 | char *new_mac_data;
|
---|
| 934 |
|
---|
| 935 | if (!data || state->d_fd < 0) {
|
---|
| 936 | printf("cryptodev_digest_update: illegal inputs \n");
|
---|
| 937 | return (0);
|
---|
| 938 | }
|
---|
| 939 |
|
---|
| 940 | if (!count) {
|
---|
| 941 | return (0);
|
---|
| 942 | }
|
---|
| 943 |
|
---|
| 944 | if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
|
---|
| 945 | /* if application doesn't support one buffer */
|
---|
| 946 | new_mac_data =
|
---|
| 947 | OPENSSL_realloc(state->mac_data, state->mac_len + count);
|
---|
| 948 |
|
---|
| 949 | if (!new_mac_data) {
|
---|
| 950 | printf("cryptodev_digest_update: realloc failed\n");
|
---|
| 951 | return (0);
|
---|
| 952 | }
|
---|
| 953 | state->mac_data = new_mac_data;
|
---|
| 954 |
|
---|
| 955 | memcpy(state->mac_data + state->mac_len, data, count);
|
---|
| 956 | state->mac_len += count;
|
---|
| 957 |
|
---|
| 958 | return (1);
|
---|
| 959 | }
|
---|
| 960 |
|
---|
| 961 | memset(&cryp, 0, sizeof(cryp));
|
---|
| 962 |
|
---|
| 963 | cryp.ses = sess->ses;
|
---|
| 964 | cryp.flags = 0;
|
---|
| 965 | cryp.len = count;
|
---|
| 966 | cryp.src = (caddr_t) data;
|
---|
| 967 | cryp.dst = NULL;
|
---|
| 968 | cryp.mac = (caddr_t) state->digest_res;
|
---|
| 969 | if (ioctl(state->d_fd, CIOCCRYPT, &cryp) < 0) {
|
---|
| 970 | printf("cryptodev_digest_update: digest failed\n");
|
---|
| 971 | return (0);
|
---|
| 972 | }
|
---|
| 973 | return (1);
|
---|
| 974 | }
|
---|
| 975 |
|
---|
| 976 | static int cryptodev_digest_final(EVP_MD_CTX *ctx, unsigned char *md)
|
---|
| 977 | {
|
---|
| 978 | struct crypt_op cryp;
|
---|
| 979 | struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
|
---|
| 980 | struct session_op *sess = &state->d_sess;
|
---|
| 981 |
|
---|
| 982 | int ret = 1;
|
---|
| 983 |
|
---|
| 984 | if (!md || state->d_fd < 0) {
|
---|
| 985 | printf("cryptodev_digest_final: illegal input\n");
|
---|
| 986 | return (0);
|
---|
| 987 | }
|
---|
| 988 |
|
---|
| 989 | if (!EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_ONESHOT)) {
|
---|
| 990 | /* if application doesn't support one buffer */
|
---|
| 991 | memset(&cryp, 0, sizeof(cryp));
|
---|
| 992 | cryp.ses = sess->ses;
|
---|
| 993 | cryp.flags = 0;
|
---|
| 994 | cryp.len = state->mac_len;
|
---|
| 995 | cryp.src = state->mac_data;
|
---|
| 996 | cryp.dst = NULL;
|
---|
| 997 | cryp.mac = (caddr_t) md;
|
---|
| 998 | if (ioctl(state->d_fd, CIOCCRYPT, &cryp) < 0) {
|
---|
| 999 | printf("cryptodev_digest_final: digest failed\n");
|
---|
| 1000 | return (0);
|
---|
| 1001 | }
|
---|
| 1002 |
|
---|
| 1003 | return 1;
|
---|
| 1004 | }
|
---|
| 1005 |
|
---|
| 1006 | memcpy(md, state->digest_res, EVP_MD_CTX_size(ctx));
|
---|
| 1007 |
|
---|
| 1008 | return (ret);
|
---|
| 1009 | }
|
---|
| 1010 |
|
---|
| 1011 | static int cryptodev_digest_cleanup(EVP_MD_CTX *ctx)
|
---|
| 1012 | {
|
---|
| 1013 | int ret = 1;
|
---|
| 1014 | struct dev_crypto_state *state = EVP_MD_CTX_md_data(ctx);
|
---|
| 1015 | struct session_op *sess = &state->d_sess;
|
---|
| 1016 |
|
---|
| 1017 | if (state == NULL)
|
---|
| 1018 | return 0;
|
---|
| 1019 |
|
---|
| 1020 | if (state->d_fd < 0) {
|
---|
| 1021 | printf("cryptodev_digest_cleanup: illegal input\n");
|
---|
| 1022 | return (0);
|
---|
| 1023 | }
|
---|
| 1024 |
|
---|
| 1025 | OPENSSL_free(state->mac_data);
|
---|
| 1026 | state->mac_data = NULL;
|
---|
| 1027 | state->mac_len = 0;
|
---|
| 1028 |
|
---|
| 1029 | if (ioctl(state->d_fd, CIOCFSESSION, &sess->ses) < 0) {
|
---|
| 1030 | printf("cryptodev_digest_cleanup: failed to close session\n");
|
---|
| 1031 | ret = 0;
|
---|
| 1032 | } else {
|
---|
| 1033 | ret = 1;
|
---|
| 1034 | }
|
---|
| 1035 | put_dev_crypto(state->d_fd);
|
---|
| 1036 | state->d_fd = -1;
|
---|
| 1037 |
|
---|
| 1038 | return (ret);
|
---|
| 1039 | }
|
---|
| 1040 |
|
---|
| 1041 | static int cryptodev_digest_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from)
|
---|
| 1042 | {
|
---|
| 1043 | struct dev_crypto_state *fstate = EVP_MD_CTX_md_data(from);
|
---|
| 1044 | struct dev_crypto_state *dstate = EVP_MD_CTX_md_data(to);
|
---|
| 1045 | struct session_op *sess;
|
---|
| 1046 | int digest;
|
---|
| 1047 |
|
---|
| 1048 | if (dstate == NULL || fstate == NULL)
|
---|
| 1049 | return 1;
|
---|
| 1050 |
|
---|
| 1051 | memcpy(dstate, fstate, sizeof(struct dev_crypto_state));
|
---|
| 1052 |
|
---|
| 1053 | sess = &dstate->d_sess;
|
---|
| 1054 |
|
---|
| 1055 | digest = digest_nid_to_cryptodev(EVP_MD_CTX_type(to));
|
---|
| 1056 |
|
---|
| 1057 | sess->mackey = dstate->dummy_mac_key;
|
---|
| 1058 | sess->mackeylen = digest_key_length(EVP_MD_CTX_type(to));
|
---|
| 1059 | sess->mac = digest;
|
---|
| 1060 |
|
---|
| 1061 | dstate->d_fd = get_dev_crypto();
|
---|
| 1062 |
|
---|
| 1063 | if (ioctl(dstate->d_fd, CIOCGSESSION, sess) < 0) {
|
---|
| 1064 | put_dev_crypto(dstate->d_fd);
|
---|
| 1065 | dstate->d_fd = -1;
|
---|
| 1066 | printf("cryptodev_digest_copy: Open session failed\n");
|
---|
| 1067 | return (0);
|
---|
| 1068 | }
|
---|
| 1069 |
|
---|
| 1070 | if (fstate->mac_len != 0) {
|
---|
| 1071 | if (fstate->mac_data != NULL) {
|
---|
| 1072 | dstate->mac_data = OPENSSL_malloc(fstate->mac_len);
|
---|
| 1073 | if (dstate->mac_data == NULL) {
|
---|
| 1074 | printf("cryptodev_digest_copy: mac_data allocation failed\n");
|
---|
| 1075 | return (0);
|
---|
| 1076 | }
|
---|
| 1077 | memcpy(dstate->mac_data, fstate->mac_data, fstate->mac_len);
|
---|
| 1078 | dstate->mac_len = fstate->mac_len;
|
---|
| 1079 | }
|
---|
| 1080 | }
|
---|
| 1081 |
|
---|
| 1082 | return 1;
|
---|
| 1083 | }
|
---|
| 1084 |
|
---|
| 1085 | static EVP_MD *sha1_md = NULL;
|
---|
| 1086 | static const EVP_MD *cryptodev_sha1(void)
|
---|
| 1087 | {
|
---|
| 1088 | if (sha1_md == NULL) {
|
---|
| 1089 | EVP_MD *md;
|
---|
| 1090 |
|
---|
| 1091 | if ((md = EVP_MD_meth_new(NID_sha1, NID_undef)) == NULL
|
---|
| 1092 | || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
|
---|
| 1093 | || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
|
---|
| 1094 | || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
|
---|
| 1095 | || !EVP_MD_meth_set_app_datasize(md,
|
---|
| 1096 | sizeof(struct dev_crypto_state))
|
---|
| 1097 | || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
|
---|
| 1098 | || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
|
---|
| 1099 | || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
|
---|
| 1100 | || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
|
---|
| 1101 | || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
|
---|
| 1102 | EVP_MD_meth_free(md);
|
---|
| 1103 | md = NULL;
|
---|
| 1104 | }
|
---|
| 1105 | sha1_md = md;
|
---|
| 1106 | }
|
---|
| 1107 | return sha1_md;
|
---|
| 1108 | }
|
---|
| 1109 |
|
---|
| 1110 | static EVP_MD *md5_md = NULL;
|
---|
| 1111 | static const EVP_MD *cryptodev_md5(void)
|
---|
| 1112 | {
|
---|
| 1113 | if (md5_md == NULL) {
|
---|
| 1114 | EVP_MD *md;
|
---|
| 1115 |
|
---|
| 1116 | if ((md = EVP_MD_meth_new(NID_md5, NID_undef)) == NULL
|
---|
| 1117 | || !EVP_MD_meth_set_result_size(md, 16 /* MD5_DIGEST_LENGTH */)
|
---|
| 1118 | || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_ONESHOT)
|
---|
| 1119 | || !EVP_MD_meth_set_input_blocksize(md, 64 /* MD5_CBLOCK */)
|
---|
| 1120 | || !EVP_MD_meth_set_app_datasize(md,
|
---|
| 1121 | sizeof(struct dev_crypto_state))
|
---|
| 1122 | || !EVP_MD_meth_set_init(md, cryptodev_digest_init)
|
---|
| 1123 | || !EVP_MD_meth_set_update(md, cryptodev_digest_update)
|
---|
| 1124 | || !EVP_MD_meth_set_final(md, cryptodev_digest_final)
|
---|
| 1125 | || !EVP_MD_meth_set_copy(md, cryptodev_digest_copy)
|
---|
| 1126 | || !EVP_MD_meth_set_cleanup(md, cryptodev_digest_cleanup)) {
|
---|
| 1127 | EVP_MD_meth_free(md);
|
---|
| 1128 | md = NULL;
|
---|
| 1129 | }
|
---|
| 1130 | md5_md = md;
|
---|
| 1131 | }
|
---|
| 1132 | return md5_md;
|
---|
| 1133 | }
|
---|
| 1134 |
|
---|
| 1135 | # endif /* USE_CRYPTODEV_DIGESTS */
|
---|
| 1136 |
|
---|
| 1137 | static int
|
---|
| 1138 | cryptodev_engine_digests(ENGINE *e, const EVP_MD **digest,
|
---|
| 1139 | const int **nids, int nid)
|
---|
| 1140 | {
|
---|
| 1141 | if (!digest)
|
---|
| 1142 | return (cryptodev_usable_digests(nids));
|
---|
| 1143 |
|
---|
| 1144 | switch (nid) {
|
---|
| 1145 | # ifdef USE_CRYPTODEV_DIGESTS
|
---|
| 1146 | case NID_md5:
|
---|
| 1147 | *digest = cryptodev_md5();
|
---|
| 1148 | break;
|
---|
| 1149 | case NID_sha1:
|
---|
| 1150 | *digest = cryptodev_sha1();
|
---|
| 1151 | break;
|
---|
| 1152 | default:
|
---|
| 1153 | # endif /* USE_CRYPTODEV_DIGESTS */
|
---|
| 1154 | *digest = NULL;
|
---|
| 1155 | break;
|
---|
| 1156 | }
|
---|
| 1157 | return (*digest != NULL);
|
---|
| 1158 | }
|
---|
| 1159 |
|
---|
| 1160 | static int cryptodev_engine_destroy(ENGINE *e)
|
---|
| 1161 | {
|
---|
| 1162 | EVP_CIPHER_meth_free(rc4_cipher);
|
---|
| 1163 | rc4_cipher = NULL;
|
---|
| 1164 | EVP_CIPHER_meth_free(des_cbc_cipher);
|
---|
| 1165 | des_cbc_cipher = NULL;
|
---|
| 1166 | EVP_CIPHER_meth_free(des3_cbc_cipher);
|
---|
| 1167 | des3_cbc_cipher = NULL;
|
---|
| 1168 | EVP_CIPHER_meth_free(bf_cbc_cipher);
|
---|
| 1169 | bf_cbc_cipher = NULL;
|
---|
| 1170 | EVP_CIPHER_meth_free(cast_cbc_cipher);
|
---|
| 1171 | cast_cbc_cipher = NULL;
|
---|
| 1172 | EVP_CIPHER_meth_free(aes_cbc_cipher);
|
---|
| 1173 | aes_cbc_cipher = NULL;
|
---|
| 1174 | EVP_CIPHER_meth_free(aes_192_cbc_cipher);
|
---|
| 1175 | aes_192_cbc_cipher = NULL;
|
---|
| 1176 | EVP_CIPHER_meth_free(aes_256_cbc_cipher);
|
---|
| 1177 | aes_256_cbc_cipher = NULL;
|
---|
| 1178 | # ifdef CRYPTO_AES_CTR
|
---|
| 1179 | EVP_CIPHER_meth_free(aes_ctr_cipher);
|
---|
| 1180 | aes_ctr_cipher = NULL;
|
---|
| 1181 | EVP_CIPHER_meth_free(aes_192_ctr_cipher);
|
---|
| 1182 | aes_192_ctr_cipher = NULL;
|
---|
| 1183 | EVP_CIPHER_meth_free(aes_256_ctr_cipher);
|
---|
| 1184 | aes_256_ctr_cipher = NULL;
|
---|
| 1185 | # endif
|
---|
| 1186 | # ifdef USE_CRYPTODEV_DIGESTS
|
---|
| 1187 | EVP_MD_meth_free(sha1_md);
|
---|
| 1188 | sha1_md = NULL;
|
---|
| 1189 | EVP_MD_meth_free(md5_md);
|
---|
| 1190 | md5_md = NULL;
|
---|
| 1191 | # endif
|
---|
| 1192 | RSA_meth_free(cryptodev_rsa);
|
---|
| 1193 | cryptodev_rsa = NULL;
|
---|
| 1194 | #ifndef OPENSSL_NO_DSA
|
---|
| 1195 | DSA_meth_free(cryptodev_dsa);
|
---|
| 1196 | cryptodev_dsa = NULL;
|
---|
| 1197 | #endif
|
---|
| 1198 | #ifndef OPENSSL_NO_DH
|
---|
| 1199 | DH_meth_free(cryptodev_dh);
|
---|
| 1200 | cryptodev_dh = NULL;
|
---|
| 1201 | #endif
|
---|
| 1202 | return 1;
|
---|
| 1203 | }
|
---|
| 1204 |
|
---|
| 1205 | /*
|
---|
| 1206 | * Convert a BIGNUM to the representation that /dev/crypto needs.
|
---|
| 1207 | * Upon completion of use, the caller is responsible for freeing
|
---|
| 1208 | * crp->crp_p.
|
---|
| 1209 | */
|
---|
| 1210 | static int bn2crparam(const BIGNUM *a, struct crparam *crp)
|
---|
| 1211 | {
|
---|
| 1212 | ssize_t bytes, bits;
|
---|
| 1213 | u_char *b;
|
---|
| 1214 |
|
---|
| 1215 | crp->crp_p = NULL;
|
---|
| 1216 | crp->crp_nbits = 0;
|
---|
| 1217 |
|
---|
| 1218 | bits = BN_num_bits(a);
|
---|
| 1219 | bytes = BN_num_bytes(a);
|
---|
| 1220 |
|
---|
| 1221 | b = OPENSSL_zalloc(bytes);
|
---|
| 1222 | if (b == NULL)
|
---|
| 1223 | return (1);
|
---|
| 1224 |
|
---|
| 1225 | crp->crp_p = (caddr_t) b;
|
---|
| 1226 | crp->crp_nbits = bits;
|
---|
| 1227 |
|
---|
| 1228 | BN_bn2bin(a, b);
|
---|
| 1229 | return (0);
|
---|
| 1230 | }
|
---|
| 1231 |
|
---|
| 1232 | /* Convert a /dev/crypto parameter to a BIGNUM */
|
---|
| 1233 | static int crparam2bn(struct crparam *crp, BIGNUM *a)
|
---|
| 1234 | {
|
---|
| 1235 | u_int8_t *pd;
|
---|
| 1236 | int i, bytes;
|
---|
| 1237 |
|
---|
| 1238 | bytes = (crp->crp_nbits + 7) / 8;
|
---|
| 1239 |
|
---|
| 1240 | if (bytes == 0)
|
---|
| 1241 | return (-1);
|
---|
| 1242 |
|
---|
| 1243 | if ((pd = OPENSSL_malloc(bytes)) == NULL)
|
---|
| 1244 | return (-1);
|
---|
| 1245 |
|
---|
| 1246 | for (i = 0; i < bytes; i++)
|
---|
| 1247 | pd[i] = crp->crp_p[bytes - i - 1];
|
---|
| 1248 |
|
---|
| 1249 | BN_bin2bn(pd, bytes, a);
|
---|
| 1250 | free(pd);
|
---|
| 1251 |
|
---|
| 1252 | return (0);
|
---|
| 1253 | }
|
---|
| 1254 |
|
---|
| 1255 | static void zapparams(struct crypt_kop *kop)
|
---|
| 1256 | {
|
---|
| 1257 | int i;
|
---|
| 1258 |
|
---|
| 1259 | for (i = 0; i < kop->crk_iparams + kop->crk_oparams; i++) {
|
---|
| 1260 | OPENSSL_free(kop->crk_param[i].crp_p);
|
---|
| 1261 | kop->crk_param[i].crp_p = NULL;
|
---|
| 1262 | kop->crk_param[i].crp_nbits = 0;
|
---|
| 1263 | }
|
---|
| 1264 | }
|
---|
| 1265 |
|
---|
| 1266 | static int
|
---|
| 1267 | cryptodev_asym(struct crypt_kop *kop, int rlen, BIGNUM *r, int slen,
|
---|
| 1268 | BIGNUM *s)
|
---|
| 1269 | {
|
---|
| 1270 | int fd, ret = -1;
|
---|
| 1271 |
|
---|
| 1272 | if ((fd = get_asym_dev_crypto()) < 0)
|
---|
| 1273 | return ret;
|
---|
| 1274 |
|
---|
| 1275 | if (r) {
|
---|
| 1276 | kop->crk_param[kop->crk_iparams].crp_p = OPENSSL_zalloc(rlen);
|
---|
| 1277 | if (kop->crk_param[kop->crk_iparams].crp_p == NULL)
|
---|
| 1278 | return ret;
|
---|
| 1279 | kop->crk_param[kop->crk_iparams].crp_nbits = rlen * 8;
|
---|
| 1280 | kop->crk_oparams++;
|
---|
| 1281 | }
|
---|
| 1282 | if (s) {
|
---|
| 1283 | kop->crk_param[kop->crk_iparams + 1].crp_p =
|
---|
| 1284 | OPENSSL_zalloc(slen);
|
---|
| 1285 | /* No need to free the kop->crk_iparams parameter if it was allocated,
|
---|
| 1286 | * callers of this routine have to free allocated parameters through
|
---|
| 1287 | * zapparams both in case of success and failure
|
---|
| 1288 | */
|
---|
| 1289 | if (kop->crk_param[kop->crk_iparams+1].crp_p == NULL)
|
---|
| 1290 | return ret;
|
---|
| 1291 | kop->crk_param[kop->crk_iparams + 1].crp_nbits = slen * 8;
|
---|
| 1292 | kop->crk_oparams++;
|
---|
| 1293 | }
|
---|
| 1294 |
|
---|
| 1295 | if (ioctl(fd, CIOCKEY, kop) == 0) {
|
---|
| 1296 | if (r)
|
---|
| 1297 | crparam2bn(&kop->crk_param[kop->crk_iparams], r);
|
---|
| 1298 | if (s)
|
---|
| 1299 | crparam2bn(&kop->crk_param[kop->crk_iparams + 1], s);
|
---|
| 1300 | ret = 0;
|
---|
| 1301 | }
|
---|
| 1302 |
|
---|
| 1303 | return ret;
|
---|
| 1304 | }
|
---|
| 1305 |
|
---|
| 1306 | static int
|
---|
| 1307 | cryptodev_bn_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
|
---|
| 1308 | const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
|
---|
| 1309 | {
|
---|
| 1310 | struct crypt_kop kop;
|
---|
| 1311 | int ret = 1;
|
---|
| 1312 |
|
---|
| 1313 | /*
|
---|
| 1314 | * Currently, we know we can do mod exp iff we can do any asymmetric
|
---|
| 1315 | * operations at all.
|
---|
| 1316 | */
|
---|
| 1317 | if (cryptodev_asymfeat == 0) {
|
---|
| 1318 | ret = BN_mod_exp(r, a, p, m, ctx);
|
---|
| 1319 | return (ret);
|
---|
| 1320 | }
|
---|
| 1321 |
|
---|
| 1322 | memset(&kop, 0, sizeof(kop));
|
---|
| 1323 | kop.crk_op = CRK_MOD_EXP;
|
---|
| 1324 |
|
---|
| 1325 | /* inputs: a^p % m */
|
---|
| 1326 | if (bn2crparam(a, &kop.crk_param[0]))
|
---|
| 1327 | goto err;
|
---|
| 1328 | if (bn2crparam(p, &kop.crk_param[1]))
|
---|
| 1329 | goto err;
|
---|
| 1330 | if (bn2crparam(m, &kop.crk_param[2]))
|
---|
| 1331 | goto err;
|
---|
| 1332 | kop.crk_iparams = 3;
|
---|
| 1333 |
|
---|
| 1334 | if (cryptodev_asym(&kop, BN_num_bytes(m), r, 0, NULL)) {
|
---|
| 1335 | const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
|
---|
| 1336 | printf("OCF asym process failed, Running in software\n");
|
---|
| 1337 | ret = RSA_meth_get_bn_mod_exp(meth)(r, a, p, m, ctx, in_mont);
|
---|
| 1338 |
|
---|
| 1339 | } else if (ECANCELED == kop.crk_status) {
|
---|
| 1340 | const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
|
---|
| 1341 | printf("OCF hardware operation cancelled. Running in Software\n");
|
---|
| 1342 | ret = RSA_meth_get_bn_mod_exp(meth)(r, a, p, m, ctx, in_mont);
|
---|
| 1343 | }
|
---|
| 1344 | /* else cryptodev operation worked ok ==> ret = 1 */
|
---|
| 1345 |
|
---|
| 1346 | err:
|
---|
| 1347 | zapparams(&kop);
|
---|
| 1348 | return (ret);
|
---|
| 1349 | }
|
---|
| 1350 |
|
---|
| 1351 | static int
|
---|
| 1352 | cryptodev_rsa_nocrt_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
|
---|
| 1353 | BN_CTX *ctx)
|
---|
| 1354 | {
|
---|
| 1355 | int r;
|
---|
| 1356 | const BIGNUM *n = NULL;
|
---|
| 1357 | const BIGNUM *d = NULL;
|
---|
| 1358 |
|
---|
| 1359 | ctx = BN_CTX_new();
|
---|
| 1360 | RSA_get0_key(rsa, &n, NULL, &d);
|
---|
| 1361 | r = cryptodev_bn_mod_exp(r0, I, d, n, ctx, NULL);
|
---|
| 1362 | BN_CTX_free(ctx);
|
---|
| 1363 | return (r);
|
---|
| 1364 | }
|
---|
| 1365 |
|
---|
| 1366 | static int
|
---|
| 1367 | cryptodev_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
|
---|
| 1368 | {
|
---|
| 1369 | struct crypt_kop kop;
|
---|
| 1370 | int ret = 1;
|
---|
| 1371 | const BIGNUM *p = NULL;
|
---|
| 1372 | const BIGNUM *q = NULL;
|
---|
| 1373 | const BIGNUM *dmp1 = NULL;
|
---|
| 1374 | const BIGNUM *dmq1 = NULL;
|
---|
| 1375 | const BIGNUM *iqmp = NULL;
|
---|
| 1376 | const BIGNUM *n = NULL;
|
---|
| 1377 |
|
---|
| 1378 | RSA_get0_factors(rsa, &p, &q);
|
---|
| 1379 | RSA_get0_crt_params(rsa, &dmp1, &dmq1, &iqmp);
|
---|
| 1380 | RSA_get0_key(rsa, &n, NULL, NULL);
|
---|
| 1381 |
|
---|
| 1382 | if (!p || !q || !dmp1 || !dmq1 || !iqmp) {
|
---|
| 1383 | /* XXX 0 means failure?? */
|
---|
| 1384 | return (0);
|
---|
| 1385 | }
|
---|
| 1386 |
|
---|
| 1387 | memset(&kop, 0, sizeof(kop));
|
---|
| 1388 | kop.crk_op = CRK_MOD_EXP_CRT;
|
---|
| 1389 | /* inputs: rsa->p rsa->q I rsa->dmp1 rsa->dmq1 rsa->iqmp */
|
---|
| 1390 | if (bn2crparam(p, &kop.crk_param[0]))
|
---|
| 1391 | goto err;
|
---|
| 1392 | if (bn2crparam(q, &kop.crk_param[1]))
|
---|
| 1393 | goto err;
|
---|
| 1394 | if (bn2crparam(I, &kop.crk_param[2]))
|
---|
| 1395 | goto err;
|
---|
| 1396 | if (bn2crparam(dmp1, &kop.crk_param[3]))
|
---|
| 1397 | goto err;
|
---|
| 1398 | if (bn2crparam(dmq1, &kop.crk_param[4]))
|
---|
| 1399 | goto err;
|
---|
| 1400 | if (bn2crparam(iqmp, &kop.crk_param[5]))
|
---|
| 1401 | goto err;
|
---|
| 1402 | kop.crk_iparams = 6;
|
---|
| 1403 |
|
---|
| 1404 | if (cryptodev_asym(&kop, BN_num_bytes(n), r0, 0, NULL)) {
|
---|
| 1405 | const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
|
---|
| 1406 | printf("OCF asym process failed, running in Software\n");
|
---|
| 1407 | ret = RSA_meth_get_mod_exp(meth)(r0, I, rsa, ctx);
|
---|
| 1408 |
|
---|
| 1409 | } else if (ECANCELED == kop.crk_status) {
|
---|
| 1410 | const RSA_METHOD *meth = RSA_PKCS1_OpenSSL();
|
---|
| 1411 | printf("OCF hardware operation cancelled. Running in Software\n");
|
---|
| 1412 | ret = RSA_meth_get_mod_exp(meth)(r0, I, rsa, ctx);
|
---|
| 1413 | }
|
---|
| 1414 | /* else cryptodev operation worked ok ==> ret = 1 */
|
---|
| 1415 |
|
---|
| 1416 | err:
|
---|
| 1417 | zapparams(&kop);
|
---|
| 1418 | return (ret);
|
---|
| 1419 | }
|
---|
| 1420 |
|
---|
| 1421 | #ifndef OPENSSL_NO_DSA
|
---|
| 1422 | static int
|
---|
| 1423 | cryptodev_dsa_bn_mod_exp(DSA *dsa, BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
|
---|
| 1424 | const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
|
---|
| 1425 | {
|
---|
| 1426 | return cryptodev_bn_mod_exp(r, a, p, m, ctx, m_ctx);
|
---|
| 1427 | }
|
---|
| 1428 |
|
---|
| 1429 | static int
|
---|
| 1430 | cryptodev_dsa_dsa_mod_exp(DSA *dsa, BIGNUM *t1, const BIGNUM *g,
|
---|
| 1431 | const BIGNUM *u1, const BIGNUM *pub_key,
|
---|
| 1432 | const BIGNUM *u2, const BIGNUM *p, BN_CTX *ctx,
|
---|
| 1433 | BN_MONT_CTX *mont)
|
---|
| 1434 | {
|
---|
| 1435 | const BIGNUM *dsag, *dsap, *dsapub_key;
|
---|
| 1436 | BIGNUM *t2;
|
---|
| 1437 | int ret = 0;
|
---|
| 1438 | const DSA_METHOD *meth;
|
---|
| 1439 | int (*bn_mod_exp)(DSA *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
|
---|
| 1440 | BN_CTX *, BN_MONT_CTX *);
|
---|
| 1441 |
|
---|
| 1442 | t2 = BN_new();
|
---|
| 1443 | if (t2 == NULL)
|
---|
| 1444 | goto err;
|
---|
| 1445 |
|
---|
| 1446 | /* v = ( g^u1 * y^u2 mod p ) mod q */
|
---|
| 1447 | /* let t1 = g ^ u1 mod p */
|
---|
| 1448 | ret = 0;
|
---|
| 1449 |
|
---|
| 1450 | DSA_get0_pqg(dsa, &dsap, NULL, &dsag);
|
---|
| 1451 | DSA_get0_key(dsa, &dsapub_key, NULL);
|
---|
| 1452 |
|
---|
| 1453 | meth = DSA_get_method(dsa);
|
---|
| 1454 | if (meth == NULL)
|
---|
| 1455 | goto err;
|
---|
| 1456 | bn_mod_exp = DSA_meth_get_bn_mod_exp(meth);
|
---|
| 1457 | if (bn_mod_exp == NULL)
|
---|
| 1458 | goto err;
|
---|
| 1459 |
|
---|
| 1460 | if (!bn_mod_exp(dsa, t1, dsag, u1, dsap, ctx, mont))
|
---|
| 1461 | goto err;
|
---|
| 1462 |
|
---|
| 1463 | /* let t2 = y ^ u2 mod p */
|
---|
| 1464 | if (!bn_mod_exp(dsa, t2, dsapub_key, u2, dsap, ctx, mont))
|
---|
| 1465 | goto err;
|
---|
| 1466 | /* let t1 = t1 * t2 mod p */
|
---|
| 1467 | if (!BN_mod_mul(t1, t1, t2, dsap, ctx))
|
---|
| 1468 | goto err;
|
---|
| 1469 |
|
---|
| 1470 | ret = 1;
|
---|
| 1471 | err:
|
---|
| 1472 | BN_free(t2);
|
---|
| 1473 | return (ret);
|
---|
| 1474 | }
|
---|
| 1475 |
|
---|
| 1476 | static DSA_SIG *cryptodev_dsa_do_sign(const unsigned char *dgst, int dlen,
|
---|
| 1477 | DSA *dsa)
|
---|
| 1478 | {
|
---|
| 1479 | struct crypt_kop kop;
|
---|
| 1480 | BIGNUM *r, *s;
|
---|
| 1481 | const BIGNUM *dsap = NULL, *dsaq = NULL, *dsag = NULL;
|
---|
| 1482 | const BIGNUM *priv_key = NULL;
|
---|
| 1483 | DSA_SIG *dsasig, *dsaret = NULL;
|
---|
| 1484 |
|
---|
| 1485 | dsasig = DSA_SIG_new();
|
---|
| 1486 | if (dsasig == NULL)
|
---|
| 1487 | goto err;
|
---|
| 1488 |
|
---|
| 1489 | memset(&kop, 0, sizeof(kop));
|
---|
| 1490 | kop.crk_op = CRK_DSA_SIGN;
|
---|
| 1491 |
|
---|
| 1492 | /* inputs: dgst dsa->p dsa->q dsa->g dsa->priv_key */
|
---|
| 1493 | kop.crk_param[0].crp_p = (caddr_t) dgst;
|
---|
| 1494 | kop.crk_param[0].crp_nbits = dlen * 8;
|
---|
| 1495 | DSA_get0_pqg(dsa, &dsap, &dsaq, &dsag);
|
---|
| 1496 | DSA_get0_key(dsa, NULL, &priv_key);
|
---|
| 1497 | if (bn2crparam(dsap, &kop.crk_param[1]))
|
---|
| 1498 | goto err;
|
---|
| 1499 | if (bn2crparam(dsaq, &kop.crk_param[2]))
|
---|
| 1500 | goto err;
|
---|
| 1501 | if (bn2crparam(dsag, &kop.crk_param[3]))
|
---|
| 1502 | goto err;
|
---|
| 1503 | if (bn2crparam(priv_key, &kop.crk_param[4]))
|
---|
| 1504 | goto err;
|
---|
| 1505 | kop.crk_iparams = 5;
|
---|
| 1506 |
|
---|
| 1507 | r = BN_new();
|
---|
| 1508 | if (r == NULL)
|
---|
| 1509 | goto err;
|
---|
| 1510 | s = BN_new();
|
---|
| 1511 | if (s == NULL)
|
---|
| 1512 | goto err;
|
---|
| 1513 | if (cryptodev_asym(&kop, BN_num_bytes(dsaq), r,
|
---|
| 1514 | BN_num_bytes(dsaq), s) == 0) {
|
---|
| 1515 | DSA_SIG_set0(dsasig, r, s);
|
---|
| 1516 | dsaret = dsasig;
|
---|
| 1517 | } else {
|
---|
| 1518 | dsaret = DSA_meth_get_sign(DSA_OpenSSL())(dgst, dlen, dsa);
|
---|
| 1519 | }
|
---|
| 1520 | err:
|
---|
| 1521 | if (dsaret != dsasig)
|
---|
| 1522 | DSA_SIG_free(dsasig);
|
---|
| 1523 | kop.crk_param[0].crp_p = NULL;
|
---|
| 1524 | zapparams(&kop);
|
---|
| 1525 | return dsaret;
|
---|
| 1526 | }
|
---|
| 1527 |
|
---|
| 1528 | static int
|
---|
| 1529 | cryptodev_dsa_verify(const unsigned char *dgst, int dlen,
|
---|
| 1530 | DSA_SIG *sig, DSA *dsa)
|
---|
| 1531 | {
|
---|
| 1532 | struct crypt_kop kop;
|
---|
| 1533 | int dsaret = 1;
|
---|
| 1534 | const BIGNUM *pr, *ps, *p = NULL, *q = NULL, *g = NULL, *pub_key = NULL;
|
---|
| 1535 |
|
---|
| 1536 | memset(&kop, 0, sizeof(kop));
|
---|
| 1537 | kop.crk_op = CRK_DSA_VERIFY;
|
---|
| 1538 |
|
---|
| 1539 | /* inputs: dgst dsa->p dsa->q dsa->g dsa->pub_key sig->r sig->s */
|
---|
| 1540 | kop.crk_param[0].crp_p = (caddr_t) dgst;
|
---|
| 1541 | kop.crk_param[0].crp_nbits = dlen * 8;
|
---|
| 1542 | DSA_get0_pqg(dsa, &p, &q, &g);
|
---|
| 1543 | if (bn2crparam(p, &kop.crk_param[1]))
|
---|
| 1544 | goto err;
|
---|
| 1545 | if (bn2crparam(q, &kop.crk_param[2]))
|
---|
| 1546 | goto err;
|
---|
| 1547 | if (bn2crparam(g, &kop.crk_param[3]))
|
---|
| 1548 | goto err;
|
---|
| 1549 | DSA_get0_key(dsa, &pub_key, NULL);
|
---|
| 1550 | if (bn2crparam(pub_key, &kop.crk_param[4]))
|
---|
| 1551 | goto err;
|
---|
| 1552 | DSA_SIG_get0(sig, &pr, &ps);
|
---|
| 1553 | if (bn2crparam(pr, &kop.crk_param[5]))
|
---|
| 1554 | goto err;
|
---|
| 1555 | if (bn2crparam(ps, &kop.crk_param[6]))
|
---|
| 1556 | goto err;
|
---|
| 1557 | kop.crk_iparams = 7;
|
---|
| 1558 |
|
---|
| 1559 | if (cryptodev_asym(&kop, 0, NULL, 0, NULL) == 0) {
|
---|
| 1560 | /*
|
---|
| 1561 | * OCF success value is 0, if not zero, change dsaret to fail
|
---|
| 1562 | */
|
---|
| 1563 | if (0 != kop.crk_status)
|
---|
| 1564 | dsaret = 0;
|
---|
| 1565 | } else {
|
---|
| 1566 | dsaret = DSA_meth_get_verify(DSA_OpenSSL())(dgst, dlen, sig, dsa);
|
---|
| 1567 | }
|
---|
| 1568 | err:
|
---|
| 1569 | kop.crk_param[0].crp_p = NULL;
|
---|
| 1570 | zapparams(&kop);
|
---|
| 1571 | return (dsaret);
|
---|
| 1572 | }
|
---|
| 1573 | #endif
|
---|
| 1574 |
|
---|
| 1575 | #ifndef OPENSSL_NO_DH
|
---|
| 1576 | static int
|
---|
| 1577 | cryptodev_mod_exp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
|
---|
| 1578 | const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
|
---|
| 1579 | BN_MONT_CTX *m_ctx)
|
---|
| 1580 | {
|
---|
| 1581 | return (cryptodev_bn_mod_exp(r, a, p, m, ctx, m_ctx));
|
---|
| 1582 | }
|
---|
| 1583 |
|
---|
| 1584 | static int
|
---|
| 1585 | cryptodev_dh_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh)
|
---|
| 1586 | {
|
---|
| 1587 | struct crypt_kop kop;
|
---|
| 1588 | int dhret = 1;
|
---|
| 1589 | int fd, keylen;
|
---|
| 1590 | const BIGNUM *p = NULL;
|
---|
| 1591 | const BIGNUM *priv_key = NULL;
|
---|
| 1592 |
|
---|
| 1593 | if ((fd = get_asym_dev_crypto()) < 0) {
|
---|
| 1594 | const DH_METHOD *meth = DH_OpenSSL();
|
---|
| 1595 |
|
---|
| 1596 | return DH_meth_get_compute_key(meth)(key, pub_key, dh);
|
---|
| 1597 | }
|
---|
| 1598 |
|
---|
| 1599 | DH_get0_pqg(dh, &p, NULL, NULL);
|
---|
| 1600 | DH_get0_key(dh, NULL, &priv_key);
|
---|
| 1601 |
|
---|
| 1602 | keylen = BN_num_bits(p);
|
---|
| 1603 |
|
---|
| 1604 | memset(&kop, 0, sizeof(kop));
|
---|
| 1605 | kop.crk_op = CRK_DH_COMPUTE_KEY;
|
---|
| 1606 |
|
---|
| 1607 | /* inputs: dh->priv_key pub_key dh->p key */
|
---|
| 1608 | if (bn2crparam(priv_key, &kop.crk_param[0]))
|
---|
| 1609 | goto err;
|
---|
| 1610 | if (bn2crparam(pub_key, &kop.crk_param[1]))
|
---|
| 1611 | goto err;
|
---|
| 1612 | if (bn2crparam(p, &kop.crk_param[2]))
|
---|
| 1613 | goto err;
|
---|
| 1614 | kop.crk_iparams = 3;
|
---|
| 1615 |
|
---|
| 1616 | kop.crk_param[3].crp_p = (caddr_t) key;
|
---|
| 1617 | kop.crk_param[3].crp_nbits = keylen * 8;
|
---|
| 1618 | kop.crk_oparams = 1;
|
---|
| 1619 |
|
---|
| 1620 | if (ioctl(fd, CIOCKEY, &kop) == -1) {
|
---|
| 1621 | const DH_METHOD *meth = DH_OpenSSL();
|
---|
| 1622 |
|
---|
| 1623 | dhret = DH_meth_get_compute_key(meth)(key, pub_key, dh);
|
---|
| 1624 | }
|
---|
| 1625 | err:
|
---|
| 1626 | kop.crk_param[3].crp_p = NULL;
|
---|
| 1627 | zapparams(&kop);
|
---|
| 1628 | return (dhret);
|
---|
| 1629 | }
|
---|
| 1630 |
|
---|
| 1631 | #endif /* ndef OPENSSL_NO_DH */
|
---|
| 1632 |
|
---|
| 1633 | /*
|
---|
| 1634 | * ctrl right now is just a wrapper that doesn't do much
|
---|
| 1635 | * but I expect we'll want some options soon.
|
---|
| 1636 | */
|
---|
| 1637 | static int
|
---|
| 1638 | cryptodev_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
|
---|
| 1639 | {
|
---|
| 1640 | # ifdef HAVE_SYSLOG_R
|
---|
| 1641 | struct syslog_data sd = SYSLOG_DATA_INIT;
|
---|
| 1642 | # endif
|
---|
| 1643 |
|
---|
| 1644 | switch (cmd) {
|
---|
| 1645 | default:
|
---|
| 1646 | # ifdef HAVE_SYSLOG_R
|
---|
| 1647 | syslog_r(LOG_ERR, &sd, "cryptodev_ctrl: unknown command %d", cmd);
|
---|
| 1648 | # else
|
---|
| 1649 | syslog(LOG_ERR, "cryptodev_ctrl: unknown command %d", cmd);
|
---|
| 1650 | # endif
|
---|
| 1651 | break;
|
---|
| 1652 | }
|
---|
| 1653 | return (1);
|
---|
| 1654 | }
|
---|
| 1655 |
|
---|
| 1656 | void engine_load_cryptodev_int(void)
|
---|
| 1657 | {
|
---|
| 1658 | ENGINE *engine = ENGINE_new();
|
---|
| 1659 | int fd;
|
---|
| 1660 |
|
---|
| 1661 | if (engine == NULL)
|
---|
| 1662 | return;
|
---|
| 1663 | if ((fd = get_dev_crypto()) < 0) {
|
---|
| 1664 | ENGINE_free(engine);
|
---|
| 1665 | return;
|
---|
| 1666 | }
|
---|
| 1667 |
|
---|
| 1668 | /*
|
---|
| 1669 | * find out what asymmetric crypto algorithms we support
|
---|
| 1670 | */
|
---|
| 1671 | if (ioctl(fd, CIOCASYMFEAT, &cryptodev_asymfeat) == -1) {
|
---|
| 1672 | put_dev_crypto(fd);
|
---|
| 1673 | ENGINE_free(engine);
|
---|
| 1674 | return;
|
---|
| 1675 | }
|
---|
| 1676 | put_dev_crypto(fd);
|
---|
| 1677 |
|
---|
| 1678 | if (!ENGINE_set_id(engine, "cryptodev") ||
|
---|
| 1679 | !ENGINE_set_name(engine, "BSD cryptodev engine") ||
|
---|
| 1680 | !ENGINE_set_destroy_function(engine, cryptodev_engine_destroy) ||
|
---|
| 1681 | !ENGINE_set_ciphers(engine, cryptodev_engine_ciphers) ||
|
---|
| 1682 | !ENGINE_set_digests(engine, cryptodev_engine_digests) ||
|
---|
| 1683 | !ENGINE_set_ctrl_function(engine, cryptodev_ctrl) ||
|
---|
| 1684 | !ENGINE_set_cmd_defns(engine, cryptodev_defns)) {
|
---|
| 1685 | ENGINE_free(engine);
|
---|
| 1686 | return;
|
---|
| 1687 | }
|
---|
| 1688 |
|
---|
| 1689 | cryptodev_rsa = RSA_meth_dup(RSA_PKCS1_OpenSSL());
|
---|
| 1690 | if (cryptodev_rsa != NULL) {
|
---|
| 1691 | RSA_meth_set1_name(cryptodev_rsa, "cryptodev RSA method");
|
---|
| 1692 | RSA_meth_set_flags(cryptodev_rsa, 0);
|
---|
| 1693 | if (ENGINE_set_RSA(engine, cryptodev_rsa)) {
|
---|
| 1694 | if (cryptodev_asymfeat & CRF_MOD_EXP) {
|
---|
| 1695 | RSA_meth_set_bn_mod_exp(cryptodev_rsa, cryptodev_bn_mod_exp);
|
---|
| 1696 | if (cryptodev_asymfeat & CRF_MOD_EXP_CRT)
|
---|
| 1697 | RSA_meth_set_mod_exp(cryptodev_rsa, cryptodev_rsa_mod_exp);
|
---|
| 1698 | else
|
---|
| 1699 | RSA_meth_set_mod_exp(cryptodev_rsa,
|
---|
| 1700 | cryptodev_rsa_nocrt_mod_exp);
|
---|
| 1701 | }
|
---|
| 1702 | }
|
---|
| 1703 | } else {
|
---|
| 1704 | ENGINE_free(engine);
|
---|
| 1705 | return;
|
---|
| 1706 | }
|
---|
| 1707 |
|
---|
| 1708 | #ifndef OPENSSL_NO_DSA
|
---|
| 1709 | cryptodev_dsa = DSA_meth_dup(DSA_OpenSSL());
|
---|
| 1710 | if (cryptodev_dsa != NULL) {
|
---|
| 1711 | DSA_meth_set1_name(cryptodev_dsa, "cryptodev DSA method");
|
---|
| 1712 | DSA_meth_set_flags(cryptodev_dsa, 0);
|
---|
| 1713 | if (ENGINE_set_DSA(engine, cryptodev_dsa)) {
|
---|
| 1714 | if (cryptodev_asymfeat & CRF_DSA_SIGN)
|
---|
| 1715 | DSA_meth_set_sign(cryptodev_dsa, cryptodev_dsa_do_sign);
|
---|
| 1716 | if (cryptodev_asymfeat & CRF_MOD_EXP) {
|
---|
| 1717 | DSA_meth_set_bn_mod_exp(cryptodev_dsa,
|
---|
| 1718 | cryptodev_dsa_bn_mod_exp);
|
---|
| 1719 | DSA_meth_set_mod_exp(cryptodev_dsa, cryptodev_dsa_dsa_mod_exp);
|
---|
| 1720 | }
|
---|
| 1721 | if (cryptodev_asymfeat & CRF_DSA_VERIFY)
|
---|
| 1722 | DSA_meth_set_verify(cryptodev_dsa, cryptodev_dsa_verify);
|
---|
| 1723 | }
|
---|
| 1724 | } else {
|
---|
| 1725 | ENGINE_free(engine);
|
---|
| 1726 | return;
|
---|
| 1727 | }
|
---|
| 1728 | #endif
|
---|
| 1729 |
|
---|
| 1730 | #ifndef OPENSSL_NO_DH
|
---|
| 1731 | cryptodev_dh = DH_meth_dup(DH_OpenSSL());
|
---|
| 1732 | if (cryptodev_dh != NULL) {
|
---|
| 1733 | DH_meth_set1_name(cryptodev_dh, "cryptodev DH method");
|
---|
| 1734 | DH_meth_set_flags(cryptodev_dh, 0);
|
---|
| 1735 | if (ENGINE_set_DH(engine, cryptodev_dh)) {
|
---|
| 1736 | if (cryptodev_asymfeat & CRF_MOD_EXP) {
|
---|
| 1737 | DH_meth_set_bn_mod_exp(cryptodev_dh, cryptodev_mod_exp_dh);
|
---|
| 1738 | if (cryptodev_asymfeat & CRF_DH_COMPUTE_KEY)
|
---|
| 1739 | DH_meth_set_compute_key(cryptodev_dh,
|
---|
| 1740 | cryptodev_dh_compute_key);
|
---|
| 1741 | }
|
---|
| 1742 | }
|
---|
| 1743 | } else {
|
---|
| 1744 | ENGINE_free(engine);
|
---|
| 1745 | return;
|
---|
| 1746 | }
|
---|
| 1747 | #endif
|
---|
| 1748 |
|
---|
| 1749 | ENGINE_add(engine);
|
---|
| 1750 | ENGINE_free(engine);
|
---|
| 1751 | ERR_clear_error();
|
---|
| 1752 | }
|
---|
| 1753 |
|
---|
| 1754 | #endif /* HAVE_CRYPTODEV */
|
---|