diff options
author | Rémi Verschelde <rverschelde@gmail.com> | 2016-10-12 23:06:17 +0200 |
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committer | Rémi Verschelde <rverschelde@gmail.com> | 2016-10-15 11:50:41 +0200 |
commit | 422196759f93df249db38619f136cabd5dcf42cd (patch) | |
tree | 1e5846507af0f8f1bc7ca294ccfb0d4ac3392d17 /thirdparty/openssl/crypto/evp/openbsd_hw.c | |
parent | d9a291f6411f2e571c181da0ac89f550ba73f681 (diff) |
openssl: Move to a module and split thirdparty lib
Same rationale as the previous commits.
Diffstat (limited to 'thirdparty/openssl/crypto/evp/openbsd_hw.c')
-rw-r--r-- | thirdparty/openssl/crypto/evp/openbsd_hw.c | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/evp/openbsd_hw.c b/thirdparty/openssl/crypto/evp/openbsd_hw.c new file mode 100644 index 0000000000..75d12e2330 --- /dev/null +++ b/thirdparty/openssl/crypto/evp/openbsd_hw.c @@ -0,0 +1,431 @@ +/* Written by Ben Laurie, 2001 */ +/* + * Copyright (c) 2001 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <openssl/evp.h> +#include <openssl/objects.h> +#include <openssl/rsa.h> +#include "evp_locl.h" + +/* + * This stuff should now all be supported through + * crypto/engine/hw_openbsd_dev_crypto.c unless I botched it up + */ +static void *dummy = &dummy; + +#if 0 + +/* check flag after OpenSSL headers to ensure make depend works */ +# ifdef OPENSSL_OPENBSD_DEV_CRYPTO + +# include <fcntl.h> +# include <stdio.h> +# include <errno.h> +# include <sys/ioctl.h> +# include <crypto/cryptodev.h> +# include <unistd.h> +# include <assert.h> + +/* longest key supported in hardware */ +# define MAX_HW_KEY 24 +# define MAX_HW_IV 8 + +# define MD5_DIGEST_LENGTH 16 +# define MD5_CBLOCK 64 + +static int fd; +static int dev_failed; + +typedef struct session_op session_op; + +# define CDATA(ctx) EVP_C_DATA(session_op,ctx) + +static void err(const char *str) +{ + fprintf(stderr, "%s: errno %d\n", str, errno); +} + +static int dev_crypto_init(session_op *ses) +{ + if (dev_failed) + return 0; + if (!fd) { + int cryptodev_fd; + + if ((cryptodev_fd = open("/dev/crypto", O_RDWR, 0)) < 0) { + err("/dev/crypto"); + dev_failed = 1; + return 0; + } + if (ioctl(cryptodev_fd, CRIOGET, &fd) == -1) { + err("CRIOGET failed"); + close(cryptodev_fd); + dev_failed = 1; + return 0; + } + close(cryptodev_fd); + } + assert(ses); + memset(ses, '\0', sizeof *ses); + + return 1; +} + +static int dev_crypto_cleanup(EVP_CIPHER_CTX *ctx) +{ + if (ioctl(fd, CIOCFSESSION, &CDATA(ctx)->ses) == -1) + err("CIOCFSESSION failed"); + + OPENSSL_free(CDATA(ctx)->key); + + return 1; +} + +static int dev_crypto_init_key(EVP_CIPHER_CTX *ctx, int cipher, + const unsigned char *key, int klen) +{ + if (!dev_crypto_init(CDATA(ctx))) + return 0; + + CDATA(ctx)->key = OPENSSL_malloc(MAX_HW_KEY); + + assert(ctx->cipher->iv_len <= MAX_HW_IV); + + memcpy(CDATA(ctx)->key, key, klen); + + CDATA(ctx)->cipher = cipher; + CDATA(ctx)->keylen = klen; + + if (ioctl(fd, CIOCGSESSION, CDATA(ctx)) == -1) { + err("CIOCGSESSION failed"); + return 0; + } + return 1; +} + +static int dev_crypto_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, unsigned int inl) +{ + struct crypt_op cryp; + unsigned char lb[MAX_HW_IV]; + + if (!inl) + return 1; + + assert(CDATA(ctx)); + assert(!dev_failed); + + memset(&cryp, '\0', sizeof cryp); + cryp.ses = CDATA(ctx)->ses; + cryp.op = ctx->encrypt ? COP_ENCRYPT : COP_DECRYPT; + cryp.flags = 0; + cryp.len = inl; + assert((inl & (ctx->cipher->block_size - 1)) == 0); + cryp.src = (caddr_t) in; + cryp.dst = (caddr_t) out; + cryp.mac = 0; + if (ctx->cipher->iv_len) + cryp.iv = (caddr_t) ctx->iv; + + if (!ctx->encrypt) + memcpy(lb, &in[cryp.len - ctx->cipher->iv_len], ctx->cipher->iv_len); + + if (ioctl(fd, CIOCCRYPT, &cryp) == -1) { + if (errno == EINVAL) { /* buffers are misaligned */ + unsigned int cinl = 0; + char *cin = NULL; + char *cout = NULL; + + /* NB: this can only make cinl != inl with stream ciphers */ + cinl = (inl + 3) / 4 * 4; + + if (((unsigned long)in & 3) || cinl != inl) { + cin = OPENSSL_malloc(cinl); + memcpy(cin, in, inl); + cryp.src = cin; + } + + if (((unsigned long)out & 3) || cinl != inl) { + cout = OPENSSL_malloc(cinl); + cryp.dst = cout; + } + + cryp.len = cinl; + + if (ioctl(fd, CIOCCRYPT, &cryp) == -1) { + err("CIOCCRYPT(2) failed"); + printf("src=%p dst=%p\n", cryp.src, cryp.dst); + abort(); + return 0; + } + + if (cout) { + memcpy(out, cout, inl); + OPENSSL_free(cout); + } + if (cin) + OPENSSL_free(cin); + } else { + err("CIOCCRYPT failed"); + abort(); + return 0; + } + } + + if (ctx->encrypt) + memcpy(ctx->iv, &out[cryp.len - ctx->cipher->iv_len], + ctx->cipher->iv_len); + else + memcpy(ctx->iv, lb, ctx->cipher->iv_len); + + return 1; +} + +static int dev_crypto_des_ede3_init_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, + const unsigned char *iv, int enc) +{ + return dev_crypto_init_key(ctx, CRYPTO_3DES_CBC, key, 24); +} + +# define dev_crypto_des_ede3_cbc_cipher dev_crypto_cipher + +BLOCK_CIPHER_def_cbc(dev_crypto_des_ede3, session_op, NID_des_ede3, 8, 24, 8, + 0, dev_crypto_des_ede3_init_key, + dev_crypto_cleanup, + EVP_CIPHER_set_asn1_iv, EVP_CIPHER_get_asn1_iv, NULL) + +static int dev_crypto_rc4_init_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, + const unsigned char *iv, int enc) +{ + return dev_crypto_init_key(ctx, CRYPTO_ARC4, key, 16); +} + +static const EVP_CIPHER r4_cipher = { + NID_rc4, + 1, 16, 0, /* FIXME: key should be up to 256 bytes */ + EVP_CIPH_VARIABLE_LENGTH, + dev_crypto_rc4_init_key, + dev_crypto_cipher, + dev_crypto_cleanup, + sizeof(session_op), + NULL, + NULL, + NULL +}; + +const EVP_CIPHER *EVP_dev_crypto_rc4(void) +{ + return &r4_cipher; +} + +typedef struct { + session_op sess; + char *data; + int len; + unsigned char md[EVP_MAX_MD_SIZE]; +} MD_DATA; + +static int dev_crypto_init_digest(MD_DATA *md_data, int mac) +{ + if (!dev_crypto_init(&md_data->sess)) + return 0; + + md_data->len = 0; + md_data->data = NULL; + + md_data->sess.mac = mac; + + if (ioctl(fd, CIOCGSESSION, &md_data->sess) == -1) { + err("CIOCGSESSION failed"); + return 0; + } + return 1; +} + +static int dev_crypto_cleanup_digest(MD_DATA *md_data) +{ + if (ioctl(fd, CIOCFSESSION, &md_data->sess.ses) == -1) { + err("CIOCFSESSION failed"); + return 0; + } + + return 1; +} + +/* FIXME: if device can do chained MACs, then don't accumulate */ +/* FIXME: move accumulation to the framework */ +static int dev_crypto_md5_init(EVP_MD_CTX *ctx) +{ + return dev_crypto_init_digest(ctx->md_data, CRYPTO_MD5); +} + +static int do_digest(int ses, unsigned char *md, const void *data, int len) +{ + struct crypt_op cryp; + static unsigned char md5zero[16] = { + 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, + 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e + }; + + /* some cards can't do zero length */ + if (!len) { + memcpy(md, md5zero, 16); + return 1; + } + + memset(&cryp, '\0', sizeof cryp); + cryp.ses = ses; + cryp.op = COP_ENCRYPT; /* required to do the MAC rather than check + * it */ + cryp.len = len; + cryp.src = (caddr_t) data; + cryp.dst = (caddr_t) data; // FIXME!!! + cryp.mac = (caddr_t) md; + + if (ioctl(fd, CIOCCRYPT, &cryp) == -1) { + if (errno == EINVAL) { /* buffer is misaligned */ + char *dcopy; + + dcopy = OPENSSL_malloc(len); + memcpy(dcopy, data, len); + cryp.src = dcopy; + cryp.dst = cryp.src; // FIXME!!! + + if (ioctl(fd, CIOCCRYPT, &cryp) == -1) { + err("CIOCCRYPT(MAC2) failed"); + abort(); + return 0; + } + OPENSSL_free(dcopy); + } else { + err("CIOCCRYPT(MAC) failed"); + abort(); + return 0; + } + } + // printf("done\n"); + + return 1; +} + +static int dev_crypto_md5_update(EVP_MD_CTX *ctx, const void *data, + unsigned long len) +{ + MD_DATA *md_data = ctx->md_data; + + if (ctx->flags & EVP_MD_CTX_FLAG_ONESHOT) + return do_digest(md_data->sess.ses, md_data->md, data, len); + + md_data->data = OPENSSL_realloc(md_data->data, md_data->len + len); + memcpy(md_data->data + md_data->len, data, len); + md_data->len += len; + + return 1; +} + +static int dev_crypto_md5_final(EVP_MD_CTX *ctx, unsigned char *md) +{ + int ret; + MD_DATA *md_data = ctx->md_data; + + if (ctx->flags & EVP_MD_CTX_FLAG_ONESHOT) { + memcpy(md, md_data->md, MD5_DIGEST_LENGTH); + ret = 1; + } else { + ret = do_digest(md_data->sess.ses, md, md_data->data, md_data->len); + OPENSSL_free(md_data->data); + md_data->data = NULL; + md_data->len = 0; + } + + return ret; +} + +static int dev_crypto_md5_copy(EVP_MD_CTX *to, const EVP_MD_CTX *from) +{ + const MD_DATA *from_md = from->md_data; + MD_DATA *to_md = to->md_data; + + // How do we copy sessions? + assert(from->digest->flags & EVP_MD_FLAG_ONESHOT); + + to_md->data = OPENSSL_malloc(from_md->len); + memcpy(to_md->data, from_md->data, from_md->len); + + return 1; +} + +static int dev_crypto_md5_cleanup(EVP_MD_CTX *ctx) +{ + return dev_crypto_cleanup_digest(ctx->md_data); +} + +static const EVP_MD md5_md = { + NID_md5, + NID_md5WithRSAEncryption, + MD5_DIGEST_LENGTH, + EVP_MD_FLAG_ONESHOT, // XXX: set according to device info... + dev_crypto_md5_init, + dev_crypto_md5_update, + dev_crypto_md5_final, + dev_crypto_md5_copy, + dev_crypto_md5_cleanup, + EVP_PKEY_RSA_method, + MD5_CBLOCK, + sizeof(MD_DATA), +}; + +const EVP_MD *EVP_dev_crypto_md5(void) +{ + return &md5_md; +} + +# endif +#endif |