mirror of https://github.com/openssl/openssl.git
				
				
				
			Add new /dev/crypto engine
Based on cryptodev-linux Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3744)
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				|  | @ -984,6 +984,7 @@ sub vms_info { | ||||||
|                                            debug   => "-O0 -g", |                                            debug   => "-O0 -g", | ||||||
|                                            release => "-O3"), |                                            release => "-O3"), | ||||||
|                                     threads("-pthread -D_THREAD_SAFE -D_REENTRANT")), |                                     threads("-pthread -D_THREAD_SAFE -D_REENTRANT")), | ||||||
|  |         enable           => add("devcryptoeng"), | ||||||
|         bn_ops           => "BN_LLONG", |         bn_ops           => "BN_LLONG", | ||||||
|         thread_scheme    => "pthreads", |         thread_scheme    => "pthreads", | ||||||
|         dso_scheme       => "dlfcn", |         dso_scheme       => "dlfcn", | ||||||
|  |  | ||||||
|  | @ -345,6 +345,7 @@ my @disablables = ( | ||||||
|     "ct", |     "ct", | ||||||
|     "deprecated", |     "deprecated", | ||||||
|     "des", |     "des", | ||||||
|  |     "devcryptoeng", | ||||||
|     "dgram", |     "dgram", | ||||||
|     "dh", |     "dh", | ||||||
|     "dsa", |     "dsa", | ||||||
|  | @ -431,6 +432,7 @@ our %disabled = ( # "what"         => "comment" | ||||||
|                   "asan"		=> "default", |                   "asan"		=> "default", | ||||||
| 		  "crypto-mdebug"       => "default", | 		  "crypto-mdebug"       => "default", | ||||||
| 		  "crypto-mdebug-backtrace" => "default", | 		  "crypto-mdebug-backtrace" => "default", | ||||||
|  | 		  "devcryptoeng"	=> "default", | ||||||
| 		  "ec_nistp_64_gcc_128" => "default", | 		  "ec_nistp_64_gcc_128" => "default", | ||||||
| 		  "egd"                 => "default", | 		  "egd"                 => "default", | ||||||
| 		  "external-tests"	=> "default", | 		  "external-tests"	=> "default", | ||||||
|  | @ -504,7 +506,7 @@ my @disable_cascades = ( | ||||||
|     # Without position independent code, there can be no shared libraries or DSOs |     # Without position independent code, there can be no shared libraries or DSOs | ||||||
|     "pic"               => [ "shared" ], |     "pic"               => [ "shared" ], | ||||||
|     "shared"            => [ "dynamic-engine" ], |     "shared"            => [ "dynamic-engine" ], | ||||||
|     "engine"            => [ "afalgeng" ], |     "engine"            => [ "afalgeng", "devcryptoeng" ], | ||||||
| 
 | 
 | ||||||
|     # no-autoalginit is only useful when building non-shared |     # no-autoalginit is only useful when building non-shared | ||||||
|     "autoalginit"       => [ "shared", "apps" ], |     "autoalginit"       => [ "shared", "apps" ], | ||||||
|  |  | ||||||
|  | @ -6,3 +6,6 @@ SOURCE[../../libcrypto]=\ | ||||||
|         tb_cipher.c tb_digest.c tb_pkmeth.c tb_asnmth.c tb_eckey.c \ |         tb_cipher.c tb_digest.c tb_pkmeth.c tb_asnmth.c tb_eckey.c \ | ||||||
|         eng_openssl.c eng_cnf.c eng_dyn.c \ |         eng_openssl.c eng_cnf.c eng_dyn.c \ | ||||||
|         eng_rdrand.c |         eng_rdrand.c | ||||||
|  | IF[{- !$disabled{devcryptoeng} -}] | ||||||
|  |   SOURCE[../../libcrypto]=eng_devcrypto.c | ||||||
|  | ENDIF | ||||||
|  |  | ||||||
|  | @ -0,0 +1,606 @@ | ||||||
|  | /*
 | ||||||
|  |  * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. | ||||||
|  |  * | ||||||
|  |  * Licensed under the OpenSSL license (the "License").  You may not use | ||||||
|  |  * this file except in compliance with the License.  You can obtain a copy | ||||||
|  |  * in the file LICENSE in the source distribution or at | ||||||
|  |  * https://www.openssl.org/source/license.html
 | ||||||
|  |  */ | ||||||
|  | 
 | ||||||
|  | #include <string.h> | ||||||
|  | #include <sys/types.h> | ||||||
|  | #include <sys/stat.h> | ||||||
|  | #include <fcntl.h> | ||||||
|  | #include <sys/ioctl.h> | ||||||
|  | #include <unistd.h> | ||||||
|  | #include <assert.h> | ||||||
|  | 
 | ||||||
|  | #include "e_os.h" | ||||||
|  | 
 | ||||||
|  | #include <openssl/evp.h> | ||||||
|  | #include <openssl/err.h> | ||||||
|  | #include <openssl/engine.h> | ||||||
|  | #include <openssl/objects.h> | ||||||
|  | #include <crypto/cryptodev.h> | ||||||
|  | 
 | ||||||
|  | #include "internal/engine.h" | ||||||
|  | 
 | ||||||
|  | #ifdef CRYPTO_ALGORITHM_MIN | ||||||
|  | # define CHECK_BSD_STYLE_MACROS | ||||||
|  | #endif | ||||||
|  | 
 | ||||||
|  | /******************************************************************************
 | ||||||
|  |  * | ||||||
|  |  * Ciphers | ||||||
|  |  * | ||||||
|  |  * Because they all do the same basic operation, we have only one set of | ||||||
|  |  * method functions for them all to share, and a mapping table between | ||||||
|  |  * NIDs and cryptodev IDs, with all the necessary size data. | ||||||
|  |  * | ||||||
|  |  *****/ | ||||||
|  | 
 | ||||||
|  | struct cipher_ctx { | ||||||
|  |     int cfd; | ||||||
|  |     struct session_op sess; | ||||||
|  | 
 | ||||||
|  |     /* to pass from init to do_cipher */ | ||||||
|  |     const unsigned char *iv; | ||||||
|  |     int op;                      /* COP_ENCRYPT or COP_DECRYPT */ | ||||||
|  | }; | ||||||
|  | 
 | ||||||
|  | static const struct cipher_data_st { | ||||||
|  |     int nid; | ||||||
|  |     int blocksize; | ||||||
|  |     int keylen; | ||||||
|  |     int ivlen; | ||||||
|  |     int flags; | ||||||
|  |     int devcryptoid; | ||||||
|  | } cipher_data[] = { | ||||||
|  | #ifndef OPENSSL_NO_DES | ||||||
|  |     { NID_des_cbc, 8, 8, 8, EVP_CIPH_CBC_MODE, CRYPTO_DES_CBC }, | ||||||
|  |     { NID_des_ede3_cbc, 8, 24, 8, EVP_CIPH_CBC_MODE, CRYPTO_3DES_CBC }, | ||||||
|  | #endif | ||||||
|  | #ifndef OPENSSL_NO_BF | ||||||
|  |     { NID_bf_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_BLF_CBC }, | ||||||
|  | #endif | ||||||
|  | #ifndef OPENSSL_NO_CAST | ||||||
|  |     { NID_cast5_cbc, 8, 16, 8, EVP_CIPH_CBC_MODE, CRYPTO_CAST_CBC }, | ||||||
|  | #endif | ||||||
|  |     { NID_aes_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, | ||||||
|  |     { NID_aes_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, | ||||||
|  |     { NID_aes_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, CRYPTO_AES_CBC }, | ||||||
|  | #ifndef OPENSSL_NO_RC4 | ||||||
|  |     { NID_rc4, 1, 16, 0, CRYPTO_ARC4 }, | ||||||
|  | #endif | ||||||
|  | #if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_CTR) | ||||||
|  |     { NID_aes_128_ctr, 16, 128 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, | ||||||
|  |     { NID_aes_192_ctr, 16, 192 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, | ||||||
|  |     { NID_aes_256_ctr, 16, 256 / 8, 16, EVP_CIPH_CTR_MODE, CRYPTO_AES_CTR }, | ||||||
|  | #endif | ||||||
|  | #if 0                            /* Not yet supported */
 | ||||||
|  |     { NID_aes_128_xts, 16, 128 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS }, | ||||||
|  |     { NID_aes_256_xts, 16, 256 / 8 * 2, 16, EVP_CIPH_XTS_MODE, CRYPTO_AES_XTS }, | ||||||
|  | #endif | ||||||
|  | #if !defined(CHECK_BSD_STYLE_MACROS) || defined(CRYPTO_AES_ECB) | ||||||
|  |     { NID_aes_128_ecb, 16, 128 / 8, 16, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, | ||||||
|  |     { NID_aes_192_ecb, 16, 192 / 8, 16, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, | ||||||
|  |     { NID_aes_256_ecb, 16, 256 / 8, 16, EVP_CIPH_ECB_MODE, CRYPTO_AES_ECB }, | ||||||
|  | #endif | ||||||
|  | #if 0                            /* Not yet supported */
 | ||||||
|  |     { NID_aes_128_gcm, 16, 128 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, | ||||||
|  |     { NID_aes_192_gcm, 16, 192 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, | ||||||
|  |     { NID_aes_256_gcm, 16, 256 / 8, 16, EVP_CIPH_GCM_MODE, CRYPTO_AES_GCM }, | ||||||
|  | #endif | ||||||
|  | #ifndef OPENSSL_NO_CAMELLIA | ||||||
|  |     { NID_camellia_128_cbc, 16, 128 / 8, 16, EVP_CIPH_CBC_MODE, | ||||||
|  |       CRYPTO_CAMELLIA_CBC }, | ||||||
|  |     { NID_camellia_192_cbc, 16, 192 / 8, 16, EVP_CIPH_CBC_MODE, | ||||||
|  |       CRYPTO_CAMELLIA_CBC }, | ||||||
|  |     { NID_camellia_256_cbc, 16, 256 / 8, 16, EVP_CIPH_CBC_MODE, | ||||||
|  |       CRYPTO_CAMELLIA_CBC }, | ||||||
|  | #endif | ||||||
|  | }; | ||||||
|  | 
 | ||||||
|  | static size_t get_cipher_data_index(int nid) | ||||||
|  | { | ||||||
|  |     size_t i; | ||||||
|  | 
 | ||||||
|  |     for (i = 0; i < OSSL_NELEM(cipher_data); i++) | ||||||
|  |         if (nid == cipher_data[i].nid) | ||||||
|  |             return i; | ||||||
|  | 
 | ||||||
|  |     /*
 | ||||||
|  |      * Code further down must make sure that only NIDs in the table above | ||||||
|  |      * are used.  If any other NID reaches this function, there's a grave | ||||||
|  |      * coding error further down. | ||||||
|  |      */ | ||||||
|  |     assert("Code that never should be reached" == NULL); | ||||||
|  |     return -1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static const struct cipher_data_st *get_cipher_data(int nid) | ||||||
|  | { | ||||||
|  |     return &cipher_data[get_cipher_data_index(nid)]; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | /*
 | ||||||
|  |  * Following are the three necessary functions to map OpenSSL functionality | ||||||
|  |  * with cryptodev. | ||||||
|  |  */ | ||||||
|  | 
 | ||||||
|  | static int cipher_init(EVP_CIPHER_CTX *ctx, const unsigned char *key, | ||||||
|  |                        const unsigned char *iv, int enc) | ||||||
|  | { | ||||||
|  |     struct cipher_ctx *cipher_ctx = | ||||||
|  |         (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); | ||||||
|  |     const struct cipher_data_st *cipher_d = | ||||||
|  |         get_cipher_data(EVP_CIPHER_CTX_nid(ctx)); | ||||||
|  | 
 | ||||||
|  |     if ((cipher_ctx->cfd = open("/dev/crypto", O_RDWR, 0)) < 0) { | ||||||
|  |         SYSerr(SYS_F_OPEN, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess)); | ||||||
|  |     cipher_ctx->sess.cipher = cipher_d->devcryptoid; | ||||||
|  |     cipher_ctx->sess.keylen = cipher_d->keylen; | ||||||
|  |     cipher_ctx->sess.key = (void *)key; | ||||||
|  |     cipher_ctx->op = enc ? COP_ENCRYPT : COP_DECRYPT; | ||||||
|  |     if (ioctl(cipher_ctx->cfd, CIOCGSESSION, &cipher_ctx->sess) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         close(cipher_ctx->cfd); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int cipher_do_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | ||||||
|  |                             const unsigned char *in, size_t inl) | ||||||
|  | { | ||||||
|  |     struct cipher_ctx *cipher_ctx = | ||||||
|  |         (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); | ||||||
|  |     struct crypt_op cryp; | ||||||
|  | 
 | ||||||
|  |     memset(&cryp, 0, sizeof(cryp)); | ||||||
|  |     cryp.ses = cipher_ctx->sess.ses; | ||||||
|  |     cryp.len = inl; | ||||||
|  |     cryp.src = (void *)in; | ||||||
|  |     cryp.dst = (void *)out; | ||||||
|  |     cryp.iv = (void *)EVP_CIPHER_CTX_iv_noconst(ctx); | ||||||
|  |     cryp.op = cipher_ctx->op; | ||||||
|  |     cryp.flags = COP_FLAG_WRITE_IV; | ||||||
|  |     if (ioctl(cipher_ctx->cfd, CIOCCRYPT, &cryp) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int cipher_cleanup(EVP_CIPHER_CTX *ctx) | ||||||
|  | { | ||||||
|  |     struct cipher_ctx *cipher_ctx = | ||||||
|  |         (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); | ||||||
|  | 
 | ||||||
|  |     if (ioctl(cipher_ctx->cfd, CIOCFSESSION, &cipher_ctx->sess) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  |     if (close(cipher_ctx->cfd) < 0) { | ||||||
|  |         SYSerr(SYS_F_CLOSE, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | /*
 | ||||||
|  |  * Keep a table of known nids and associated methods. | ||||||
|  |  * Note that known_cipher_nids[] isn't necessarely indexed the same way as | ||||||
|  |  * cipher_data[] above, which known_cipher_methods[] is. | ||||||
|  |  */ | ||||||
|  | static int known_cipher_nids[OSSL_NELEM(cipher_data)]; | ||||||
|  | static int known_cipher_nids_amount = -1; /* -1 indicates not yet initialised */ | ||||||
|  | static EVP_CIPHER *known_cipher_methods[OSSL_NELEM(cipher_data)] = { NULL, }; | ||||||
|  | 
 | ||||||
|  | static void prepare_cipher_methods() | ||||||
|  | { | ||||||
|  |     size_t i; | ||||||
|  |     struct session_op sess; | ||||||
|  |     int cfd; | ||||||
|  | 
 | ||||||
|  |     if ((cfd = open("/dev/crypto", O_RDWR, 0)) < 0) | ||||||
|  |         return; | ||||||
|  | 
 | ||||||
|  |     memset(&sess, 0, sizeof(sess)); | ||||||
|  |     sess.key = (void *)"01234567890123456789012345678901234567890123456789"; | ||||||
|  | 
 | ||||||
|  |     for (i = 0, known_cipher_nids_amount = 0; | ||||||
|  |          i < OSSL_NELEM(cipher_data); i++) { | ||||||
|  | 
 | ||||||
|  |         /*
 | ||||||
|  |          * Check that the algo is really availably by trying to open and close | ||||||
|  |          * a session. | ||||||
|  |          */ | ||||||
|  |         sess.cipher = cipher_data[i].devcryptoid; | ||||||
|  |         sess.keylen = cipher_data[i].keylen; | ||||||
|  |         if (ioctl(cfd, CIOCGSESSION, &sess) < 0 | ||||||
|  |             || ioctl(cfd, CIOCFSESSION, &sess) < 0) | ||||||
|  |             continue; | ||||||
|  | 
 | ||||||
|  |         if ((known_cipher_methods[i] = | ||||||
|  |                  EVP_CIPHER_meth_new(cipher_data[i].nid, | ||||||
|  |                                      cipher_data[i].blocksize, | ||||||
|  |                                      cipher_data[i].keylen)) == NULL | ||||||
|  |             || !EVP_CIPHER_meth_set_iv_length(known_cipher_methods[i], | ||||||
|  |                                               cipher_data[i].ivlen) | ||||||
|  |             || !EVP_CIPHER_meth_set_flags(known_cipher_methods[i], | ||||||
|  |                                           cipher_data[i].flags | ||||||
|  |                                           | EVP_CIPH_FLAG_DEFAULT_ASN1) | ||||||
|  |             || !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init) | ||||||
|  |             || !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i], | ||||||
|  |                                               cipher_do_cipher) | ||||||
|  |             || !EVP_CIPHER_meth_set_cleanup(known_cipher_methods[i], | ||||||
|  |                                             cipher_cleanup) | ||||||
|  |             || !EVP_CIPHER_meth_set_impl_ctx_size(known_cipher_methods[i], | ||||||
|  |                                                   sizeof(struct cipher_ctx))) { | ||||||
|  |             EVP_CIPHER_meth_free(known_cipher_methods[i]); | ||||||
|  |             known_cipher_methods[i] = NULL; | ||||||
|  |         } else { | ||||||
|  |             known_cipher_nids[known_cipher_nids_amount++] = | ||||||
|  |                 cipher_data[i].nid; | ||||||
|  |         } | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     close(cfd); | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static const EVP_CIPHER *get_cipher_method(int nid) | ||||||
|  | { | ||||||
|  |     size_t i = get_cipher_data_index(nid); | ||||||
|  | 
 | ||||||
|  |     if (i == (size_t)-1) | ||||||
|  |         return NULL; | ||||||
|  |     return known_cipher_methods[i]; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int get_cipher_nids(const int **nids) | ||||||
|  | { | ||||||
|  |     *nids = known_cipher_nids; | ||||||
|  |     return known_cipher_nids_amount; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static void destroy_cipher_method(int nid) | ||||||
|  | { | ||||||
|  |     size_t i = get_cipher_data_index(nid); | ||||||
|  | 
 | ||||||
|  |     EVP_CIPHER_meth_free(known_cipher_methods[i]); | ||||||
|  |     known_cipher_methods[i] = NULL; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static void destroy_all_cipher_methods() | ||||||
|  | { | ||||||
|  |     size_t i; | ||||||
|  | 
 | ||||||
|  |     for (i = 0; i < OSSL_NELEM(cipher_data); i++) | ||||||
|  |         destroy_cipher_method(cipher_data[i].nid); | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int devcrypto_ciphers(ENGINE *e, const EVP_CIPHER **cipher, | ||||||
|  |                              const int **nids, int nid) | ||||||
|  | { | ||||||
|  |     if (cipher == NULL) | ||||||
|  |         return get_cipher_nids(nids); | ||||||
|  | 
 | ||||||
|  |     *cipher = get_cipher_method(nid); | ||||||
|  | 
 | ||||||
|  |     return *cipher != NULL; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | /******************************************************************************
 | ||||||
|  |  * | ||||||
|  |  * Digests | ||||||
|  |  * | ||||||
|  |  * Because they all do the same basic operation, we have only one set of | ||||||
|  |  * method functions for them all to share, and a mapping table between | ||||||
|  |  * NIDs and cryptodev IDs, with all the necessary size data. | ||||||
|  |  * | ||||||
|  |  *****/ | ||||||
|  | 
 | ||||||
|  | struct digest_ctx { | ||||||
|  |     int cfd; | ||||||
|  |     struct session_op sess; | ||||||
|  |     int init; | ||||||
|  | }; | ||||||
|  | 
 | ||||||
|  | static const struct digest_data_st { | ||||||
|  |     int nid; | ||||||
|  |     int digestlen; | ||||||
|  |     int devcryptoid; | ||||||
|  | } digest_data[] = { | ||||||
|  | #ifndef OPENSSL_NO_MD5 | ||||||
|  |     { NID_md5, 16, CRYPTO_MD5 }, | ||||||
|  | #endif | ||||||
|  |     { NID_sha1, 20, CRYPTO_SHA1 }, | ||||||
|  | #ifndef OPENSSL_NO_RMD160 | ||||||
|  | # if !defined(CHECK_BSD_STYLE_MACROS) && defined(CRYPTO_RIPEMD160) | ||||||
|  |     { NID_ripemd160, 20, CRYPTO_RIPEMD160 }, | ||||||
|  | # endif | ||||||
|  | #endif | ||||||
|  | #if !defined(CHECK_BSD_STYLE_MACROS) && defined(CRYPTO_SHA2_224) | ||||||
|  |     { NID_sha224, 224 / 8, CRYPTO_SHA2_224 }, | ||||||
|  | #endif | ||||||
|  | #if !defined(CHECK_BSD_STYLE_MACROS) && defined(CRYPTO_SHA2_256) | ||||||
|  |     { NID_sha256, 256 / 8, CRYPTO_SHA2_256 }, | ||||||
|  | #endif | ||||||
|  | #if !defined(CHECK_BSD_STYLE_MACROS) && defined(CRYPTO_SHA2_384) | ||||||
|  |     { NID_sha384, 384 / 8, CRYPTO_SHA2_384 }, | ||||||
|  | #endif | ||||||
|  | #if !defined(CHECK_BSD_STYLE_MACROS) && defined(CRYPTO_SHA2_512) | ||||||
|  |     { NID_sha512, 512 / 8, CRYPTO_SHA2_512 }, | ||||||
|  | #endif | ||||||
|  | }; | ||||||
|  | 
 | ||||||
|  | static size_t get_digest_data_index(int nid) | ||||||
|  | { | ||||||
|  |     size_t i; | ||||||
|  | 
 | ||||||
|  |     for (i = 0; i < OSSL_NELEM(digest_data); i++) | ||||||
|  |         if (nid == digest_data[i].nid) | ||||||
|  |             return i; | ||||||
|  | 
 | ||||||
|  |     /*
 | ||||||
|  |      * Code further down must make sure that only NIDs in the table above | ||||||
|  |      * are used.  If any other NID reaches this function, there's a grave | ||||||
|  |      * coding error further down. | ||||||
|  |      */ | ||||||
|  |     assert("Code that never should be reached" == NULL); | ||||||
|  |     return -1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static const struct digest_data_st *get_digest_data(int nid) | ||||||
|  | { | ||||||
|  |     return &digest_data[get_digest_data_index(nid)]; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | /*
 | ||||||
|  |  * Following are the four necessary functions to map OpenSSL functionality | ||||||
|  |  * with cryptodev. | ||||||
|  |  */ | ||||||
|  | 
 | ||||||
|  | static int digest_init(EVP_MD_CTX *ctx) | ||||||
|  | { | ||||||
|  |     struct digest_ctx *digest_ctx = | ||||||
|  |         (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); | ||||||
|  |     const struct digest_data_st *digest_d = | ||||||
|  |         get_digest_data(EVP_MD_CTX_type(ctx)); | ||||||
|  | 
 | ||||||
|  |     if (digest_ctx->init == 0 | ||||||
|  |         && (digest_ctx->cfd = open("/dev/crypto", O_RDWR, 0)) < 0) { | ||||||
|  |         SYSerr(SYS_F_OPEN, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     digest_ctx->init = 1; | ||||||
|  | 
 | ||||||
|  |     memset(&digest_ctx->sess, 0, sizeof(digest_ctx->sess)); | ||||||
|  |     digest_ctx->sess.mac = digest_d->devcryptoid; | ||||||
|  |     if (ioctl(digest_ctx->cfd, CIOCGSESSION, &digest_ctx->sess) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         close(digest_ctx->cfd); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int digest_update(EVP_MD_CTX *ctx, const void *data, size_t count) | ||||||
|  | { | ||||||
|  |     struct digest_ctx *digest_ctx = | ||||||
|  |         (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); | ||||||
|  |     struct crypt_op cryp; | ||||||
|  | 
 | ||||||
|  |     memset(&cryp, 0, sizeof(cryp)); | ||||||
|  |     cryp.ses = digest_ctx->sess.ses; | ||||||
|  |     cryp.len = count; | ||||||
|  |     cryp.src = (void *)data; | ||||||
|  |     cryp.flags = COP_FLAG_UPDATE; | ||||||
|  |     if (ioctl(digest_ctx->cfd, CIOCCRYPT, &cryp) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int digest_final(EVP_MD_CTX *ctx, unsigned char *md) | ||||||
|  | { | ||||||
|  |     struct digest_ctx *digest_ctx = | ||||||
|  |         (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); | ||||||
|  |     struct crypt_op cryp; | ||||||
|  | 
 | ||||||
|  |     memset(&cryp, 0, sizeof(cryp)); | ||||||
|  |     cryp.ses = digest_ctx->sess.ses; | ||||||
|  |     cryp.len = 0; | ||||||
|  |     cryp.src = NULL; | ||||||
|  |     cryp.mac = (void *)md; | ||||||
|  |     cryp.flags = COP_FLAG_FINAL; | ||||||
|  |     if (ioctl(digest_ctx->cfd, CIOCCRYPT, &cryp) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  |     if (ioctl(digest_ctx->cfd, CIOCFSESSION, &digest_ctx->sess) < 0) { | ||||||
|  |         SYSerr(SYS_F_IOCTL, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int digest_cleanup(EVP_MD_CTX *ctx) | ||||||
|  | { | ||||||
|  |     struct digest_ctx *digest_ctx = | ||||||
|  |         (struct digest_ctx *)EVP_MD_CTX_md_data(ctx); | ||||||
|  | 
 | ||||||
|  |     if (close(digest_ctx->cfd) < 0) { | ||||||
|  |         SYSerr(SYS_F_CLOSE, errno); | ||||||
|  |         return 0; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | /*
 | ||||||
|  |  * Keep a table of known nids and associated methods. | ||||||
|  |  * Note that known_digest_nids[] isn't necessarely indexed the same way as | ||||||
|  |  * digest_data[] above, which known_digest_methods[] is. | ||||||
|  |  */ | ||||||
|  | static int known_digest_nids[OSSL_NELEM(digest_data)]; | ||||||
|  | static int known_digest_nids_amount = -1; /* -1 indicates not yet initialised */ | ||||||
|  | static EVP_MD *known_digest_methods[OSSL_NELEM(digest_data)] = { NULL, }; | ||||||
|  | 
 | ||||||
|  | static void prepare_digest_methods() | ||||||
|  | { | ||||||
|  |     size_t i; | ||||||
|  |     struct session_op sess; | ||||||
|  |     int cfd; | ||||||
|  | 
 | ||||||
|  |     if ((cfd = open("/dev/crypto", O_RDWR, 0)) < 0) | ||||||
|  |         return; | ||||||
|  | 
 | ||||||
|  |     memset(&sess, 0, sizeof(sess)); | ||||||
|  | 
 | ||||||
|  |     for (i = 0, known_digest_nids_amount = 0; i < OSSL_NELEM(digest_data); | ||||||
|  |          i++) { | ||||||
|  | 
 | ||||||
|  |         /*
 | ||||||
|  |          * Check that the algo is really availably by trying to open and close | ||||||
|  |          * a session. | ||||||
|  |          */ | ||||||
|  |         sess.mac = digest_data[i].devcryptoid; | ||||||
|  |         if (ioctl(cfd, CIOCGSESSION, &sess) < 0 | ||||||
|  |             || ioctl(cfd, CIOCFSESSION, &sess) < 0) | ||||||
|  |             continue; | ||||||
|  | 
 | ||||||
|  |         if ((known_digest_methods[i] = EVP_MD_meth_new(digest_data[i].nid, | ||||||
|  |                                                        NID_undef)) == NULL | ||||||
|  |             || !EVP_MD_meth_set_result_size(known_digest_methods[i], | ||||||
|  |                                             digest_data[i].digestlen) | ||||||
|  |             || !EVP_MD_meth_set_init(known_digest_methods[i], digest_init) | ||||||
|  |             || !EVP_MD_meth_set_update(known_digest_methods[i], digest_update) | ||||||
|  |             || !EVP_MD_meth_set_final(known_digest_methods[i], digest_final) | ||||||
|  |             || !EVP_MD_meth_set_cleanup(known_digest_methods[i], digest_cleanup) | ||||||
|  |             || !EVP_MD_meth_set_app_datasize(known_digest_methods[i], | ||||||
|  |                                              sizeof(struct digest_ctx))) { | ||||||
|  |             EVP_MD_meth_free(known_digest_methods[i]); | ||||||
|  |             known_digest_methods[i] = NULL; | ||||||
|  |         } else { | ||||||
|  |             known_digest_nids[known_digest_nids_amount++] = digest_data[i].nid; | ||||||
|  |         } | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     close(cfd); | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static const EVP_MD *get_digest_method(int nid) | ||||||
|  | { | ||||||
|  |     size_t i = get_digest_data_index(nid); | ||||||
|  | 
 | ||||||
|  |     if (i == (size_t)-1) | ||||||
|  |         return NULL; | ||||||
|  |     return known_digest_methods[i]; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int get_digest_nids(const int **nids) | ||||||
|  | { | ||||||
|  |     *nids = known_digest_nids; | ||||||
|  |     return known_digest_nids_amount; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static void destroy_digest_method(int nid) | ||||||
|  | { | ||||||
|  |     size_t i = get_digest_data_index(nid); | ||||||
|  | 
 | ||||||
|  |     EVP_MD_meth_free(known_digest_methods[i]); | ||||||
|  |     known_digest_methods[i] = NULL; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static void destroy_all_digest_methods() | ||||||
|  | { | ||||||
|  |     size_t i; | ||||||
|  | 
 | ||||||
|  |     for (i = 0; i < OSSL_NELEM(digest_data); i++) | ||||||
|  |         destroy_digest_method(digest_data[i].nid); | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | static int devcrypto_digests(ENGINE *e, const EVP_MD **digest, | ||||||
|  |                              const int **nids, int nid) | ||||||
|  | { | ||||||
|  |     if (digest == NULL) | ||||||
|  |         return get_digest_nids(nids); | ||||||
|  | 
 | ||||||
|  |     *digest = get_digest_method(nid); | ||||||
|  | 
 | ||||||
|  |     return *digest != NULL; | ||||||
|  | } | ||||||
|  | 
 | ||||||
|  | /******************************************************************************
 | ||||||
|  |  * | ||||||
|  |  * LOAD / UNLOAD | ||||||
|  |  * | ||||||
|  |  *****/ | ||||||
|  | 
 | ||||||
|  | static int devcrypto_unload(ENGINE *e) | ||||||
|  | { | ||||||
|  |     destroy_all_cipher_methods(); | ||||||
|  |     destroy_all_digest_methods(); | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | /*
 | ||||||
|  |  * This engine is always built into libcrypto, so it doesn't offer any | ||||||
|  |  * ability to be dynamically loadable. | ||||||
|  |  */ | ||||||
|  | void engine_load_devcrypto_int() | ||||||
|  | { | ||||||
|  |     ENGINE *e = NULL; | ||||||
|  | 
 | ||||||
|  |     if (access("/dev/crypto", R_OK | W_OK) < 0) { | ||||||
|  |         fprintf(stderr, | ||||||
|  |                 "/dev/crypto not present, not enabling devcrypto engine\n"); | ||||||
|  |         return; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     prepare_cipher_methods(); | ||||||
|  |     prepare_digest_methods(); | ||||||
|  | 
 | ||||||
|  |     if ((e = ENGINE_new()) == NULL) | ||||||
|  |         return; | ||||||
|  | 
 | ||||||
|  |     if (!ENGINE_set_id(e, "devcrypto") | ||||||
|  |         || !ENGINE_set_name(e, "/dev/crypto engine") | ||||||
|  |         || !ENGINE_set_destroy_function(e, devcrypto_unload) | ||||||
|  | #if 0                            /* Not supported yet */
 | ||||||
|  | # ifndef OPENSSL_NO_RSA | ||||||
|  |         || !ENGINE_set_RSA(e, devcrypto_rsa) | ||||||
|  | # endif | ||||||
|  | # ifndef OPENSSL_NO_DSA | ||||||
|  |         || !ENGINE_set_DSA(e, devcrypto_dsa) | ||||||
|  | # endif | ||||||
|  | # ifndef OPENSSL_NO_DH | ||||||
|  |         || !ENGINE_set_DH(e, devcrypto_dh) | ||||||
|  | # endif | ||||||
|  | # ifndef OPENSSL_NO_EC | ||||||
|  |         || !ENGINE_set_EC(e, devcrypto_ec) | ||||||
|  | # endif | ||||||
|  | #endif | ||||||
|  |         || !ENGINE_set_ciphers(e, devcrypto_ciphers) | ||||||
|  |         || !ENGINE_set_digests(e, devcrypto_digests)) { | ||||||
|  |         ENGINE_free(e); | ||||||
|  |         return; | ||||||
|  |     } | ||||||
|  | 
 | ||||||
|  |     ENGINE_add(e); | ||||||
|  |     ENGINE_free(e);          /* Loose our local reference */ | ||||||
|  |     ERR_clear_error(); | ||||||
|  | } | ||||||
|  | @ -84,6 +84,9 @@ static ERR_STRING_DATA ERR_str_functs[] = { | ||||||
|     {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"}, |     {ERR_PACK(0, SYS_F_GETSOCKNAME, 0), "getsockname"}, | ||||||
|     {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"}, |     {ERR_PACK(0, SYS_F_GETHOSTBYNAME, 0), "gethostbyname"}, | ||||||
|     {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"}, |     {ERR_PACK(0, SYS_F_FFLUSH, 0), "fflush"}, | ||||||
|  |     {ERR_PACK(0, SYS_F_OPEN, 0), "open"}, | ||||||
|  |     {ERR_PACK(0, SYS_F_CLOSE, 0), "close"}, | ||||||
|  |     {ERR_PACK(0, SYS_F_IOCTL, 0), "ioctl"}, | ||||||
|     {0, NULL}, |     {0, NULL}, | ||||||
| }; | }; | ||||||
| 
 | 
 | ||||||
|  |  | ||||||
|  | @ -10,6 +10,7 @@ | ||||||
| #include <openssl/engine.h> | #include <openssl/engine.h> | ||||||
| 
 | 
 | ||||||
| void engine_load_openssl_int(void); | void engine_load_openssl_int(void); | ||||||
|  | void engine_load_devcrypto_int(void); | ||||||
| void engine_load_rdrand_int(void); | void engine_load_rdrand_int(void); | ||||||
| void engine_load_dynamic_int(void); | void engine_load_dynamic_int(void); | ||||||
| void engine_load_padlock_int(void); | void engine_load_padlock_int(void); | ||||||
|  |  | ||||||
|  | @ -241,6 +241,18 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl) | ||||||
|     engine_load_openssl_int(); |     engine_load_openssl_int(); | ||||||
|     return 1; |     return 1; | ||||||
| } | } | ||||||
|  | # ifndef OPENSSL_NO_DEVCRYPTOENG | ||||||
|  | static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT; | ||||||
|  | DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto) | ||||||
|  | { | ||||||
|  | #  ifdef OPENSSL_INIT_DEBUG | ||||||
|  |     fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: " | ||||||
|  |                     "engine_load_devcrypto_int()\n"); | ||||||
|  | #  endif | ||||||
|  |     engine_load_devcrypto_int(); | ||||||
|  |     return 1; | ||||||
|  | } | ||||||
|  | # endif | ||||||
| 
 | 
 | ||||||
| # ifndef OPENSSL_NO_RDRAND | # ifndef OPENSSL_NO_RDRAND | ||||||
| static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; | static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT; | ||||||
|  | @ -560,6 +572,11 @@ int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) | ||||||
|     if ((opts & OPENSSL_INIT_ENGINE_OPENSSL) |     if ((opts & OPENSSL_INIT_ENGINE_OPENSSL) | ||||||
|             && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl)) |             && !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl)) | ||||||
|         return 0; |         return 0; | ||||||
|  | # if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_DEVCRYPTOENG) | ||||||
|  |     if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV) | ||||||
|  |             && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto)) | ||||||
|  |         return 0; | ||||||
|  | # endif | ||||||
| # ifndef OPENSSL_NO_RDRAND | # ifndef OPENSSL_NO_RDRAND | ||||||
|     if ((opts & OPENSSL_INIT_ENGINE_RDRAND) |     if ((opts & OPENSSL_INIT_ENGINE_RDRAND) | ||||||
|             && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand)) |             && !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand)) | ||||||
|  |  | ||||||
|  | @ -160,6 +160,9 @@ typedef struct err_state_st { | ||||||
| # define SYS_F_GETSOCKNAME       16 | # define SYS_F_GETSOCKNAME       16 | ||||||
| # define SYS_F_GETHOSTBYNAME     17 | # define SYS_F_GETHOSTBYNAME     17 | ||||||
| # define SYS_F_FFLUSH            18 | # define SYS_F_FFLUSH            18 | ||||||
|  | # define SYS_F_OPEN              19 | ||||||
|  | # define SYS_F_CLOSE             20 | ||||||
|  | # define SYS_F_IOCTL             21 | ||||||
| 
 | 
 | ||||||
| /* reasons */ | /* reasons */ | ||||||
| # define ERR_R_SYS_LIB   ERR_LIB_SYS/* 2 */ | # define ERR_R_SYS_LIB   ERR_LIB_SYS/* 2 */ | ||||||
|  |  | ||||||
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