X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=engines%2Fe_dasync.c;h=f6771abad104e71093a4e4030b6f18fcc4c36d84;hb=bd363ef32403d58a8b41553b5abd602b30073b10;hp=7f6aa7568d7de1349268727859e8c425b5a401d3;hpb=6e59a892db781658c050e5217127c4147c116ac9;p=openssl.git diff --git a/engines/e_dasync.c b/engines/e_dasync.c index 7f6aa7568d..f6771abad1 100644 --- a/engines/e_dasync.c +++ b/engines/e_dasync.c @@ -1,67 +1,51 @@ -/* engines/e_dasync.c */ /* - * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project. - */ -/* ==================================================================== - * Copyright (c) 2015 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 - * licensing@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. + * Copyright 2015-2022 The OpenSSL Project Authors. All Rights Reserved. * - * 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. - * ==================================================================== + * Licensed under the Apache License 2.0 (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 */ +/* We need to use some engine deprecated APIs */ +#define OPENSSL_SUPPRESS_DEPRECATED + +/* + * SHA-1 low level APIs are deprecated for public use, but still ok for + * internal use. Note, that due to symbols not being exported, only the + * #defines and strucures can be accessed, in this case SHA_CBLOCK and + * sizeof(SHA_CTX). + */ +#include "internal/deprecated.h" + +#include +#if defined(_WIN32) +# include +#endif + #include #include #include #include +#include #include #include #include #include +#include +#include +#include + +#if defined(OPENSSL_SYS_UNIX) && defined(OPENSSL_THREADS) +# undef ASYNC_POSIX +# define ASYNC_POSIX +# include +#elif defined(_WIN32) +# undef ASYNC_WIN +# define ASYNC_WIN +#endif -#define DASYNC_LIB_NAME "DASYNC" #include "e_dasync_err.c" /* Engine Id and Name */ @@ -73,15 +57,13 @@ static const char *engine_dasync_name = "Dummy Async engine support"; static int dasync_destroy(ENGINE *e); static int dasync_init(ENGINE *e); static int dasync_finish(ENGINE *e); -void ENGINE_load_dasync(void); +void engine_load_dasync_int(void); /* Set up digests. Just SHA1 for now */ static int dasync_digests(ENGINE *e, const EVP_MD **digest, const int **nids, int nid); -static int dasync_digest_nids[] = { NID_sha1, 0 }; - static void dummy_pause_job(void); /* SHA1 */ @@ -90,63 +72,185 @@ static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count); static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md); -static const EVP_MD dasync_sha1 = { - NID_sha1, - NID_sha1WithRSAEncryption, - SHA_DIGEST_LENGTH, - EVP_MD_FLAG_DIGALGID_ABSENT, - dasync_sha1_init, - dasync_sha1_update, - dasync_sha1_final, - NULL, - NULL, - SHA_CBLOCK, - sizeof(EVP_MD *) + sizeof(SHA_CTX), -}; +/* + * Holds the EVP_MD object for sha1 in this engine. Set up once only during + * engine bind and can then be reused many times. + */ +static EVP_MD *_hidden_sha1_md = NULL; +static const EVP_MD *dasync_sha1(void) +{ + return _hidden_sha1_md; +} +static void destroy_digests(void) +{ + EVP_MD_meth_free(_hidden_sha1_md); + _hidden_sha1_md = NULL; +} -/* RSA */ +static int dasync_digest_nids(const int **nids) +{ + static int digest_nids[2] = { 0, 0 }; + static int pos = 0; + static int init = 0; + + if (!init) { + const EVP_MD *md; + if ((md = dasync_sha1()) != NULL) + digest_nids[pos++] = EVP_MD_get_type(md); + digest_nids[pos] = 0; + init = 1; + } + *nids = digest_nids; + return pos; +} -static int dasync_pub_enc(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding); -static int dasync_pub_dec(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding); -static int dasync_rsa_priv_enc(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding); -static int dasync_rsa_priv_dec(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding); -static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, - BN_CTX *ctx); - -static int dasync_rsa_init(RSA *rsa); -static int dasync_rsa_finish(RSA *rsa); - -static RSA_METHOD dasync_rsa_method = { - "Dummy Async RSA method", - dasync_pub_enc, /* pub_enc */ - dasync_pub_dec, /* pub_dec */ - dasync_rsa_priv_enc, /* priv_enc */ - dasync_rsa_priv_dec, /* priv_dec */ - dasync_rsa_mod_exp, /* rsa_mod_exp */ - BN_mod_exp_mont, /* bn_mod_exp */ - dasync_rsa_init, /* init */ - dasync_rsa_finish, /* finish */ - 0, /* flags */ - NULL, /* app_data */ - 0, /* rsa_sign */ - 0, /* rsa_verify */ - NULL /* rsa_keygen */ +/* RSA */ +static int dasync_pkey(ENGINE *e, EVP_PKEY_METHOD **pmeth, + const int **pnids, int nid); + +static int dasync_rsa_init(EVP_PKEY_CTX *ctx); +static void dasync_rsa_cleanup(EVP_PKEY_CTX *ctx); +static int dasync_rsa_paramgen_init(EVP_PKEY_CTX *ctx); +static int dasync_rsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); +static int dasync_rsa_keygen_init(EVP_PKEY_CTX *ctx); +static int dasync_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey); +static int dasync_rsa_encrypt_init(EVP_PKEY_CTX *ctx); +static int dasync_rsa_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, + size_t *outlen, const unsigned char *in, + size_t inlen); +static int dasync_rsa_decrypt_init(EVP_PKEY_CTX *ctx); +static int dasync_rsa_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, + size_t *outlen, const unsigned char *in, + size_t inlen); +static int dasync_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2); +static int dasync_rsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, + const char *value); + +static EVP_PKEY_METHOD *dasync_rsa; +static const EVP_PKEY_METHOD *dasync_rsa_orig; + +/* AES */ + +static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, + void *ptr); +static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc); +static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl); +static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx); + +static int dasync_aes256_ctr_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, + void *ptr); +static int dasync_aes256_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc); +static int dasync_aes256_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl); +static int dasync_aes256_ctr_cleanup(EVP_CIPHER_CTX *ctx); + +static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, + int arg, void *ptr); +static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, + const unsigned char *iv, + int enc); +static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, + unsigned char *out, + const unsigned char *in, + size_t inl); +static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx); + +struct dasync_pipeline_ctx { + void *inner_cipher_data; + unsigned int numpipes; + unsigned char **inbufs; + unsigned char **outbufs; + size_t *lens; + unsigned char tlsaad[SSL_MAX_PIPELINES][EVP_AEAD_TLS1_AAD_LEN]; + unsigned int aadctr; }; +/* + * Holds the EVP_CIPHER object for aes_128_cbc in this engine. Set up once only + * during engine bind and can then be reused many times. + */ +static EVP_CIPHER *_hidden_aes_128_cbc = NULL; +static const EVP_CIPHER *dasync_aes_128_cbc(void) +{ + return _hidden_aes_128_cbc; +} + +static EVP_CIPHER *_hidden_aes_256_ctr = NULL; +static const EVP_CIPHER *dasync_aes_256_ctr(void) +{ + return _hidden_aes_256_ctr; +} + +/* + * Holds the EVP_CIPHER object for aes_128_cbc_hmac_sha1 in this engine. Set up + * once only during engine bind and can then be reused many times. + * + * This 'stitched' cipher depends on the EVP_aes_128_cbc_hmac_sha1() cipher, + * which is implemented only if the AES-NI instruction set extension is available + * (see OPENSSL_IA32CAP(3)). If that's not the case, then this cipher will not + * be available either. + * + * Note: Since it is a legacy mac-then-encrypt cipher, modern TLS peers (which + * negotiate the encrypt-then-mac extension) won't negotiate it anyway. + */ +static EVP_CIPHER *_hidden_aes_128_cbc_hmac_sha1 = NULL; +static const EVP_CIPHER *dasync_aes_128_cbc_hmac_sha1(void) +{ + return _hidden_aes_128_cbc_hmac_sha1; +} + +static void destroy_ciphers(void) +{ + EVP_CIPHER_meth_free(_hidden_aes_128_cbc); + EVP_CIPHER_meth_free(_hidden_aes_256_ctr); + EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1); + _hidden_aes_128_cbc = NULL; + _hidden_aes_256_ctr = NULL; + _hidden_aes_128_cbc_hmac_sha1 = NULL; +} + +static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher, + const int **nids, int nid); + +static int dasync_cipher_nids[] = { + NID_aes_128_cbc, + NID_aes_256_ctr, + NID_aes_128_cbc_hmac_sha1, + 0 +}; static int bind_dasync(ENGINE *e) { + /* Setup RSA */ + if ((dasync_rsa_orig = EVP_PKEY_meth_find(EVP_PKEY_RSA)) == NULL + || (dasync_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA, + EVP_PKEY_FLAG_AUTOARGLEN)) == NULL) + return 0; + EVP_PKEY_meth_set_init(dasync_rsa, dasync_rsa_init); + EVP_PKEY_meth_set_cleanup(dasync_rsa, dasync_rsa_cleanup); + EVP_PKEY_meth_set_paramgen(dasync_rsa, dasync_rsa_paramgen_init, + dasync_rsa_paramgen); + EVP_PKEY_meth_set_keygen(dasync_rsa, dasync_rsa_keygen_init, + dasync_rsa_keygen); + EVP_PKEY_meth_set_encrypt(dasync_rsa, dasync_rsa_encrypt_init, + dasync_rsa_encrypt); + EVP_PKEY_meth_set_decrypt(dasync_rsa, dasync_rsa_decrypt_init, + dasync_rsa_decrypt); + EVP_PKEY_meth_set_ctrl(dasync_rsa, dasync_rsa_ctrl, + dasync_rsa_ctrl_str); + /* Ensure the dasync error handling is set up */ ERR_load_DASYNC_strings(); if (!ENGINE_set_id(e, engine_dasync_id) || !ENGINE_set_name(e, engine_dasync_name) - || !ENGINE_set_RSA(e, &dasync_rsa_method) + || !ENGINE_set_pkey_meths(e, dasync_pkey) || !ENGINE_set_digests(e, dasync_digests) + || !ENGINE_set_ciphers(e, dasync_ciphers) || !ENGINE_set_destroy_function(e, dasync_destroy) || !ENGINE_set_init_function(e, dasync_init) || !ENGINE_set_finish_function(e, dasync_finish)) { @@ -154,9 +258,111 @@ static int bind_dasync(ENGINE *e) return 0; } + /* + * Set up the EVP_CIPHER and EVP_MD objects for the ciphers/digests + * supplied by this engine + */ + _hidden_sha1_md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption); + if (_hidden_sha1_md == NULL + || !EVP_MD_meth_set_result_size(_hidden_sha1_md, SHA_DIGEST_LENGTH) + || !EVP_MD_meth_set_input_blocksize(_hidden_sha1_md, SHA_CBLOCK) + || !EVP_MD_meth_set_app_datasize(_hidden_sha1_md, + sizeof(EVP_MD *) + sizeof(SHA_CTX)) + || !EVP_MD_meth_set_flags(_hidden_sha1_md, EVP_MD_FLAG_DIGALGID_ABSENT) + || !EVP_MD_meth_set_init(_hidden_sha1_md, dasync_sha1_init) + || !EVP_MD_meth_set_update(_hidden_sha1_md, dasync_sha1_update) + || !EVP_MD_meth_set_final(_hidden_sha1_md, dasync_sha1_final)) { + EVP_MD_meth_free(_hidden_sha1_md); + _hidden_sha1_md = NULL; + } + + _hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc, + 16 /* block size */, + 16 /* key len */); + if (_hidden_aes_128_cbc == NULL + || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16) + || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc, + EVP_CIPH_FLAG_DEFAULT_ASN1 + | EVP_CIPH_CBC_MODE + | EVP_CIPH_FLAG_PIPELINE + | EVP_CIPH_CUSTOM_COPY) + || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc, + dasync_aes128_init_key) + || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc, + dasync_aes128_cbc_cipher) + || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc, + dasync_aes128_cbc_cleanup) + || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc, + dasync_aes128_cbc_ctrl) + || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc, + sizeof(struct dasync_pipeline_ctx))) { + EVP_CIPHER_meth_free(_hidden_aes_128_cbc); + _hidden_aes_128_cbc = NULL; + } + + _hidden_aes_256_ctr = EVP_CIPHER_meth_new(NID_aes_256_ctr, + 1 /* block size */, + 32 /* key len */); + if (_hidden_aes_256_ctr == NULL + || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_256_ctr,16) + || !EVP_CIPHER_meth_set_flags(_hidden_aes_256_ctr, + EVP_CIPH_FLAG_DEFAULT_ASN1 + | EVP_CIPH_CTR_MODE + | EVP_CIPH_FLAG_PIPELINE + | EVP_CIPH_CUSTOM_COPY) + || !EVP_CIPHER_meth_set_init(_hidden_aes_256_ctr, + dasync_aes256_init_key) + || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_256_ctr, + dasync_aes256_ctr_cipher) + || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_256_ctr, + dasync_aes256_ctr_cleanup) + || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_256_ctr, + dasync_aes256_ctr_ctrl) + || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_256_ctr, + sizeof(struct dasync_pipeline_ctx))) { + EVP_CIPHER_meth_free(_hidden_aes_256_ctr); + _hidden_aes_256_ctr = NULL; + } + + _hidden_aes_128_cbc_hmac_sha1 = EVP_CIPHER_meth_new( + NID_aes_128_cbc_hmac_sha1, + 16 /* block size */, + 16 /* key len */); + if (_hidden_aes_128_cbc_hmac_sha1 == NULL + || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc_hmac_sha1,16) + || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc_hmac_sha1, + EVP_CIPH_CBC_MODE + | EVP_CIPH_FLAG_DEFAULT_ASN1 + | EVP_CIPH_FLAG_AEAD_CIPHER + | EVP_CIPH_FLAG_PIPELINE + | EVP_CIPH_CUSTOM_COPY) + || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc_hmac_sha1, + dasync_aes128_cbc_hmac_sha1_init_key) + || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc_hmac_sha1, + dasync_aes128_cbc_hmac_sha1_cipher) + || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc_hmac_sha1, + dasync_aes128_cbc_hmac_sha1_cleanup) + || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc_hmac_sha1, + dasync_aes128_cbc_hmac_sha1_ctrl) + || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc_hmac_sha1, + sizeof(struct dasync_pipeline_ctx))) { + EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1); + _hidden_aes_128_cbc_hmac_sha1 = NULL; + } + return 1; } +static void destroy_pkey(void) +{ + /* + * We don't actually need to free the dasync_rsa method since this is + * automatically freed for us by libcrypto. + */ + dasync_rsa_orig = NULL; + dasync_rsa = NULL; +} + # ifndef OPENSSL_NO_DYNAMIC_ENGINE static int bind_helper(ENGINE *e, const char *id) { @@ -183,14 +389,24 @@ static ENGINE *engine_dasync(void) return ret; } -void ENGINE_load_dasync(void) +void engine_load_dasync_int(void) { ENGINE *toadd = engine_dasync(); if (!toadd) return; + ERR_set_mark(); ENGINE_add(toadd); + /* + * If the "add" worked, it gets a structural reference. So either way, we + * release our just-created reference. + */ ENGINE_free(toadd); - ERR_clear_error(); + /* + * If the "add" didn't work, it was probably a conflict because it was + * already added (eg. someone calling ENGINE_load_blah then calling + * ENGINE_load_builtin_engines() perhaps). + */ + ERR_pop_to_mark(); } static int dasync_init(ENGINE *e) @@ -207,24 +423,44 @@ static int dasync_finish(ENGINE *e) static int dasync_destroy(ENGINE *e) { + destroy_digests(); + destroy_ciphers(); + destroy_pkey(); ERR_unload_DASYNC_strings(); return 1; } +static int dasync_pkey(ENGINE *e, EVP_PKEY_METHOD **pmeth, + const int **pnids, int nid) +{ + static const int rnid = EVP_PKEY_RSA; + + if (pmeth == NULL) { + *pnids = &rnid; + return 1; + } + + if (nid == EVP_PKEY_RSA) { + *pmeth = dasync_rsa; + return 1; + } + + *pmeth = NULL; + return 0; +} + static int dasync_digests(ENGINE *e, const EVP_MD **digest, const int **nids, int nid) { int ok = 1; if (!digest) { /* We are returning a list of supported nids */ - *nids = dasync_digest_nids; - return (sizeof(dasync_digest_nids) - - 1) / sizeof(dasync_digest_nids[0]); + return dasync_digest_nids(nids); } /* We are being asked for a specific digest */ switch (nid) { case NID_sha1: - *digest = &dasync_sha1; + *digest = dasync_sha1(); break; default: ok = 0; @@ -234,37 +470,141 @@ static int dasync_digests(ENGINE *e, const EVP_MD **digest, return ok; } +static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher, + const int **nids, int nid) +{ + int ok = 1; + if (cipher == NULL) { + /* We are returning a list of supported nids */ + *nids = dasync_cipher_nids; + return (sizeof(dasync_cipher_nids) - + 1) / sizeof(dasync_cipher_nids[0]); + } + /* We are being asked for a specific cipher */ + switch (nid) { + case NID_aes_128_cbc: + *cipher = dasync_aes_128_cbc(); + break; + case NID_aes_256_ctr: + *cipher = dasync_aes_256_ctr(); + break; + case NID_aes_128_cbc_hmac_sha1: + *cipher = dasync_aes_128_cbc_hmac_sha1(); + break; + default: + ok = 0; + *cipher = NULL; + break; + } + return ok; +} + +static void wait_cleanup(ASYNC_WAIT_CTX *ctx, const void *key, + OSSL_ASYNC_FD readfd, void *pvwritefd) +{ + OSSL_ASYNC_FD *pwritefd = (OSSL_ASYNC_FD *)pvwritefd; +#if defined(ASYNC_WIN) + CloseHandle(readfd); + CloseHandle(*pwritefd); +#elif defined(ASYNC_POSIX) + close(readfd); + close(*pwritefd); +#endif + OPENSSL_free(pwritefd); +} + +#define DUMMY_CHAR 'X' + static void dummy_pause_job(void) { ASYNC_JOB *job; + ASYNC_WAIT_CTX *waitctx; + ASYNC_callback_fn callback; + void * callback_arg; + OSSL_ASYNC_FD pipefds[2] = {0, 0}; + OSSL_ASYNC_FD *writefd; +#if defined(ASYNC_WIN) + DWORD numwritten, numread; + char buf = DUMMY_CHAR; +#elif defined(ASYNC_POSIX) + char buf = DUMMY_CHAR; +#endif if ((job = ASYNC_get_current_job()) == NULL) return; + waitctx = ASYNC_get_wait_ctx(job); + + if (ASYNC_WAIT_CTX_get_callback(waitctx, &callback, &callback_arg) && callback != NULL) { + /* + * In the Dummy async engine we are cheating. We call the callback that the job + * is complete before the call to ASYNC_pause_job(). A real + * async engine would only call the callback when the job was actually complete + */ + (*callback)(callback_arg); + ASYNC_pause_job(); + return; + } + + + if (ASYNC_WAIT_CTX_get_fd(waitctx, engine_dasync_id, &pipefds[0], + (void **)&writefd)) { + pipefds[1] = *writefd; + } else { + writefd = OPENSSL_malloc(sizeof(*writefd)); + if (writefd == NULL) + return; +#if defined(ASYNC_WIN) + if (CreatePipe(&pipefds[0], &pipefds[1], NULL, 256) == 0) { + OPENSSL_free(writefd); + return; + } +#elif defined(ASYNC_POSIX) + if (pipe(pipefds) != 0) { + OPENSSL_free(writefd); + return; + } +#endif + *writefd = pipefds[1]; + + if (!ASYNC_WAIT_CTX_set_wait_fd(waitctx, engine_dasync_id, pipefds[0], + writefd, wait_cleanup)) { + wait_cleanup(waitctx, engine_dasync_id, pipefds[0], writefd); + return; + } + } /* * In the Dummy async engine we are cheating. We signal that the job * is complete by waking it before the call to ASYNC_pause_job(). A real * async engine would only wake when the job was actually complete */ - ASYNC_wake(job); +#if defined(ASYNC_WIN) + WriteFile(pipefds[1], &buf, 1, &numwritten, NULL); +#elif defined(ASYNC_POSIX) + if (write(pipefds[1], &buf, 1) < 0) + return; +#endif /* Ignore errors - we carry on anyway */ ASYNC_pause_job(); - ASYNC_clear_wake(job); + /* Clear the wake signal */ +#if defined(ASYNC_WIN) + ReadFile(pipefds[0], &buf, 1, &numread, NULL); +#elif defined(ASYNC_POSIX) + if (read(pipefds[0], &buf, 1) < 0) + return; +#endif } - /* * SHA1 implementation. At the moment we just defer to the standard * implementation */ -#undef data -#define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx)) static int dasync_sha1_init(EVP_MD_CTX *ctx) { dummy_pause_job(); - return SHA1_Init(data(ctx)); + return EVP_MD_meth_get_init(EVP_sha1())(ctx); } static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data, @@ -272,62 +612,395 @@ static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data, { dummy_pause_job(); - return SHA1_Update(data(ctx), data, (size_t)count); + return EVP_MD_meth_get_update(EVP_sha1())(ctx, data, count); } static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md) { dummy_pause_job(); - return SHA1_Final(md, data(ctx)); + return EVP_MD_meth_get_final(EVP_sha1())(ctx, md); +} + +/* Cipher helper functions */ + +static int dasync_cipher_ctrl_helper(EVP_CIPHER_CTX *ctx, int type, int arg, + void *ptr, int aeadcapable, + const EVP_CIPHER *ciph) +{ + int ret; + struct dasync_pipeline_ctx *pipe_ctx = + (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); + + if (pipe_ctx == NULL) + return 0; + + switch (type) { + case EVP_CTRL_COPY: + { + size_t sz = EVP_CIPHER_impl_ctx_size(ciph); + void *inner_cipher_data = OPENSSL_malloc(sz); + + if (inner_cipher_data == NULL) + return -1; + memcpy(inner_cipher_data, pipe_ctx->inner_cipher_data, sz); + pipe_ctx->inner_cipher_data = inner_cipher_data; + } + break; + + case EVP_CTRL_SET_PIPELINE_OUTPUT_BUFS: + pipe_ctx->numpipes = arg; + pipe_ctx->outbufs = (unsigned char **)ptr; + break; + + case EVP_CTRL_SET_PIPELINE_INPUT_BUFS: + pipe_ctx->numpipes = arg; + pipe_ctx->inbufs = (unsigned char **)ptr; + break; + + case EVP_CTRL_SET_PIPELINE_INPUT_LENS: + pipe_ctx->numpipes = arg; + pipe_ctx->lens = (size_t *)ptr; + break; + + case EVP_CTRL_AEAD_SET_MAC_KEY: + if (!aeadcapable) + return -1; + EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data); + ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_cbc_hmac_sha1()) + (ctx, type, arg, ptr); + EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx); + return ret; + + case EVP_CTRL_AEAD_TLS1_AAD: + { + unsigned char *p = ptr; + unsigned int len; + + if (!aeadcapable || arg != EVP_AEAD_TLS1_AAD_LEN) + return -1; + + if (pipe_ctx->aadctr >= SSL_MAX_PIPELINES) + return -1; + + memcpy(pipe_ctx->tlsaad[pipe_ctx->aadctr], ptr, + EVP_AEAD_TLS1_AAD_LEN); + pipe_ctx->aadctr++; + + len = p[arg - 2] << 8 | p[arg - 1]; + + if (EVP_CIPHER_CTX_is_encrypting(ctx)) { + if ((p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) { + if (len < AES_BLOCK_SIZE) + return 0; + len -= AES_BLOCK_SIZE; + } + + return ((len + SHA_DIGEST_LENGTH + AES_BLOCK_SIZE) + & -AES_BLOCK_SIZE) - len; + } else { + return SHA_DIGEST_LENGTH; + } + } + + default: + return 0; + } + + return 1; +} + +static int dasync_cipher_init_key_helper(EVP_CIPHER_CTX *ctx, + const unsigned char *key, + const unsigned char *iv, int enc, + const EVP_CIPHER *cipher) +{ + int ret; + struct dasync_pipeline_ctx *pipe_ctx = + (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); + + if (pipe_ctx->inner_cipher_data == NULL + && EVP_CIPHER_impl_ctx_size(cipher) != 0) { + pipe_ctx->inner_cipher_data = OPENSSL_zalloc( + EVP_CIPHER_impl_ctx_size(cipher)); + if (pipe_ctx->inner_cipher_data == NULL) + return 0; + } + + pipe_ctx->numpipes = 0; + pipe_ctx->aadctr = 0; + + EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data); + ret = EVP_CIPHER_meth_get_init(cipher)(ctx, key, iv, enc); + EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx); + + return ret; +} + +static int dasync_cipher_helper(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl, + const EVP_CIPHER *cipher) +{ + int ret = 1; + unsigned int i, pipes; + struct dasync_pipeline_ctx *pipe_ctx = + (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); + + pipes = pipe_ctx->numpipes; + EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data); + if (pipes == 0) { + if (pipe_ctx->aadctr != 0) { + if (pipe_ctx->aadctr != 1) + return -1; + EVP_CIPHER_meth_get_ctrl(cipher) + (ctx, EVP_CTRL_AEAD_TLS1_AAD, + EVP_AEAD_TLS1_AAD_LEN, + pipe_ctx->tlsaad[0]); + } + ret = EVP_CIPHER_meth_get_do_cipher(cipher) + (ctx, out, in, inl); + } else { + if (pipe_ctx->aadctr > 0 && pipe_ctx->aadctr != pipes) + return -1; + for (i = 0; i < pipes; i++) { + if (pipe_ctx->aadctr > 0) { + EVP_CIPHER_meth_get_ctrl(cipher) + (ctx, EVP_CTRL_AEAD_TLS1_AAD, + EVP_AEAD_TLS1_AAD_LEN, + pipe_ctx->tlsaad[i]); + } + ret = ret && EVP_CIPHER_meth_get_do_cipher(cipher) + (ctx, pipe_ctx->outbufs[i], pipe_ctx->inbufs[i], + pipe_ctx->lens[i]); + } + pipe_ctx->numpipes = 0; + } + pipe_ctx->aadctr = 0; + EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx); + return ret; +} + +static int dasync_cipher_cleanup_helper(EVP_CIPHER_CTX *ctx, + const EVP_CIPHER *cipher) +{ + struct dasync_pipeline_ctx *pipe_ctx = + (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx); + + OPENSSL_clear_free(pipe_ctx->inner_cipher_data, + EVP_CIPHER_impl_ctx_size(cipher)); + + return 1; } +/* + * AES128 CBC Implementation + */ + +static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, + void *ptr) +{ + return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 0, EVP_aes_128_cbc()); +} + +static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + return dasync_cipher_init_key_helper(ctx, key, iv, enc, EVP_aes_128_cbc()); +} + +static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl) +{ + return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc()); +} + +static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx) +{ + return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc()); +} + +static int dasync_aes256_ctr_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, + void *ptr) +{ + return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 0, EVP_aes_256_ctr()); +} + +static int dasync_aes256_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + return dasync_cipher_init_key_helper(ctx, key, iv, enc, EVP_aes_256_ctr()); +} + +static int dasync_aes256_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl) +{ + return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_256_ctr()); +} + +static int dasync_aes256_ctr_cleanup(EVP_CIPHER_CTX *ctx) +{ + return dasync_cipher_cleanup_helper(ctx, EVP_aes_256_ctr()); +} + + +/* + * AES128 CBC HMAC SHA1 Implementation + */ + +static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, + int arg, void *ptr) +{ + return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 1, EVP_aes_128_cbc_hmac_sha1()); +} + +static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx, + const unsigned char *key, + const unsigned char *iv, + int enc) +{ + /* + * We can safely assume that EVP_aes_128_cbc_hmac_sha1() != NULL, + * see comment before the definition of dasync_aes_128_cbc_hmac_sha1(). + */ + return dasync_cipher_init_key_helper(ctx, key, iv, enc, + EVP_aes_128_cbc_hmac_sha1()); +} + +static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, + unsigned char *out, + const unsigned char *in, + size_t inl) +{ + return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc_hmac_sha1()); +} + +static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx) +{ + /* + * We can safely assume that EVP_aes_128_cbc_hmac_sha1() != NULL, + * see comment before the definition of dasync_aes_128_cbc_hmac_sha1(). + */ + return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc_hmac_sha1()); +} + + /* * RSA implementation */ +static int dasync_rsa_init(EVP_PKEY_CTX *ctx) +{ + static int (*pinit)(EVP_PKEY_CTX *ctx); -static int dasync_pub_enc(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding) { - /* Ignore errors - we carry on anyway */ - dummy_pause_job(); - return RSA_PKCS1_OpenSSL()->rsa_pub_enc(flen, from, to, rsa, padding); + if (pinit == NULL) + EVP_PKEY_meth_get_init(dasync_rsa_orig, &pinit); + return pinit(ctx); } -static int dasync_pub_dec(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding) { - /* Ignore errors - we carry on anyway */ - dummy_pause_job(); - return RSA_PKCS1_OpenSSL()->rsa_pub_dec(flen, from, to, rsa, padding); +static void dasync_rsa_cleanup(EVP_PKEY_CTX *ctx) +{ + static void (*pcleanup)(EVP_PKEY_CTX *ctx); + + if (pcleanup == NULL) + EVP_PKEY_meth_get_cleanup(dasync_rsa_orig, &pcleanup); + pcleanup(ctx); } -static int dasync_rsa_priv_enc(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding) +static int dasync_rsa_paramgen_init(EVP_PKEY_CTX *ctx) { - /* Ignore errors - we carry on anyway */ - dummy_pause_job(); - return RSA_PKCS1_OpenSSL()->rsa_priv_enc(flen, from, to, rsa, padding); + static int (*pparamgen_init)(EVP_PKEY_CTX *ctx); + + if (pparamgen_init == NULL) + EVP_PKEY_meth_get_paramgen(dasync_rsa_orig, &pparamgen_init, NULL); + return pparamgen_init != NULL ? pparamgen_init(ctx) : 1; } -static int dasync_rsa_priv_dec(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding) +static int dasync_rsa_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) { - /* Ignore errors - we carry on anyway */ - dummy_pause_job(); - return RSA_PKCS1_OpenSSL()->rsa_priv_dec(flen, from, to, rsa, padding); + static int (*pparamgen)(EVP_PKEY_CTX *c, EVP_PKEY *pkey); + + if (pparamgen == NULL) + EVP_PKEY_meth_get_paramgen(dasync_rsa_orig, NULL, &pparamgen); + return pparamgen != NULL ? pparamgen(ctx, pkey) : 1; } -static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx) +static int dasync_rsa_keygen_init(EVP_PKEY_CTX *ctx) { - /* Ignore errors - we carry on anyway */ - dummy_pause_job(); - return RSA_PKCS1_OpenSSL()->rsa_mod_exp(r0, I, rsa, ctx); + static int (*pkeygen_init)(EVP_PKEY_CTX *ctx); + + if (pkeygen_init == NULL) + EVP_PKEY_meth_get_keygen(dasync_rsa_orig, &pkeygen_init, NULL); + return pkeygen_init != NULL ? pkeygen_init(ctx) : 1; +} + +static int dasync_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) +{ + static int (*pkeygen)(EVP_PKEY_CTX *c, EVP_PKEY *pkey); + + if (pkeygen == NULL) + EVP_PKEY_meth_get_keygen(dasync_rsa_orig, NULL, &pkeygen); + return pkeygen(ctx, pkey); } -static int dasync_rsa_init(RSA *rsa) +static int dasync_rsa_encrypt_init(EVP_PKEY_CTX *ctx) { - return RSA_PKCS1_OpenSSL()->init(rsa); + static int (*pencrypt_init)(EVP_PKEY_CTX *ctx); + + if (pencrypt_init == NULL) + EVP_PKEY_meth_get_encrypt(dasync_rsa_orig, &pencrypt_init, NULL); + return pencrypt_init != NULL ? pencrypt_init(ctx) : 1; } -static int dasync_rsa_finish(RSA *rsa) + +static int dasync_rsa_encrypt(EVP_PKEY_CTX *ctx, unsigned char *out, + size_t *outlen, const unsigned char *in, + size_t inlen) +{ + static int (*pencryptfn)(EVP_PKEY_CTX *ctx, unsigned char *out, + size_t *outlen, const unsigned char *in, + size_t inlen); + + if (pencryptfn == NULL) + EVP_PKEY_meth_get_encrypt(dasync_rsa_orig, NULL, &pencryptfn); + return pencryptfn(ctx, out, outlen, in, inlen); +} + +static int dasync_rsa_decrypt_init(EVP_PKEY_CTX *ctx) { - return RSA_PKCS1_OpenSSL()->finish(rsa); + static int (*pdecrypt_init)(EVP_PKEY_CTX *ctx); + + if (pdecrypt_init == NULL) + EVP_PKEY_meth_get_decrypt(dasync_rsa_orig, &pdecrypt_init, NULL); + return pdecrypt_init != NULL ? pdecrypt_init(ctx) : 1; +} + +static int dasync_rsa_decrypt(EVP_PKEY_CTX *ctx, unsigned char *out, + size_t *outlen, const unsigned char *in, + size_t inlen) +{ + static int (*pdecrypt)(EVP_PKEY_CTX *ctx, unsigned char *out, + size_t *outlen, const unsigned char *in, + size_t inlen); + + if (pdecrypt == NULL) + EVP_PKEY_meth_get_encrypt(dasync_rsa_orig, NULL, &pdecrypt); + return pdecrypt(ctx, out, outlen, in, inlen); +} + +static int dasync_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) +{ + static int (*pctrl)(EVP_PKEY_CTX *ctx, int type, int p1, void *p2); + + if (pctrl == NULL) + EVP_PKEY_meth_get_ctrl(dasync_rsa_orig, &pctrl, NULL); + return pctrl(ctx, type, p1, p2); +} + +static int dasync_rsa_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, + const char *value) +{ + static int (*pctrl_str)(EVP_PKEY_CTX *ctx, const char *type, + const char *value); + + if (pctrl_str == NULL) + EVP_PKEY_meth_get_ctrl(dasync_rsa_orig, NULL, &pctrl_str); + return pctrl_str(ctx, type, value); }