/*
- * 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 2015-2024 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 structures can be accessed, in this case SHA_CBLOCK and
+ * sizeof(SHA_CTX).
+ */
+#include "internal/deprecated.h"
+
+#include <openssl/opensslconf.h>
+#if defined(_WIN32)
+# include <windows.h>
+#endif
+
#include <stdio.h>
#include <string.h>
#include <openssl/engine.h>
#include <openssl/sha.h>
+#include <openssl/aes.h>
#include <openssl/rsa.h>
#include <openssl/evp.h>
#include <openssl/async.h>
#include <openssl/bn.h>
+#include <openssl/crypto.h>
+#include <openssl/ssl.h>
+#include <openssl/modes.h>
+
+#if defined(OPENSSL_SYS_UNIX) && defined(OPENSSL_THREADS)
+# undef ASYNC_POSIX
+# define ASYNC_POSIX
+# include <unistd.h>
+#elif defined(_WIN32)
+# undef ASYNC_WIN
+# define ASYNC_WIN
+#endif
-#define DASYNC_LIB_NAME "DASYNC"
#include "e_dasync_err.c"
/* Engine Id and Name */
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 */
size_t count);
static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
+/*
+ * 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)
{
- if (_hidden_sha1_md == NULL) {
- EVP_MD *md;
-
- if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
- || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
- || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
- || !EVP_MD_meth_set_app_datasize(md,
- sizeof(EVP_MD *) + sizeof(SHA_CTX))
- || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
- || !EVP_MD_meth_set_init(md, dasync_sha1_init)
- || !EVP_MD_meth_set_update(md, dasync_sha1_update)
- || !EVP_MD_meth_set_final(md, dasync_sha1_final)) {
- EVP_MD_meth_free(md);
- md = NULL;
- }
- _hidden_sha1_md = md;
- }
return _hidden_sha1_md;
}
static void destroy_digests(void)
EVP_MD_meth_free(_hidden_sha1_md);
_hidden_sha1_md = NULL;
}
+
static int dasync_digest_nids(const int **nids)
{
static int digest_nids[2] = { 0, 0 };
if (!init) {
const EVP_MD *md;
if ((md = dasync_sha1()) != NULL)
- digest_nids[pos++] = EVP_MD_type(md);
+ digest_nids[pos++] = EVP_MD_get_type(md);
digest_nids[pos] = 0;
init = 1;
}
}
/* RSA */
-
-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 */
+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)) {
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)
{
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)
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)
{
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,
{
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_decrypt(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);
}
projects / openssl.git / blobdiff