2 * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
4 /* ====================================================================
5 * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
56 #include <openssl/engine.h>
57 #include <openssl/sha.h>
58 #include <openssl/aes.h>
59 #include <openssl/rsa.h>
60 #include <openssl/evp.h>
61 #include <openssl/async.h>
62 #include <openssl/bn.h>
63 #include <openssl/crypto.h>
64 #include <openssl/ssl.h>
65 #include <openssl/modes.h>
67 #if (defined(OPENSSL_SYS_UNIX) || defined(OPENSSL_SYS_CYGWIN)) && defined(OPENSSL_THREADS)
77 #define DASYNC_LIB_NAME "DASYNC"
78 #include "e_dasync_err.c"
80 /* Engine Id and Name */
81 static const char *engine_dasync_id = "dasync";
82 static const char *engine_dasync_name = "Dummy Async engine support";
85 /* Engine Lifetime functions */
86 static int dasync_destroy(ENGINE *e);
87 static int dasync_init(ENGINE *e);
88 static int dasync_finish(ENGINE *e);
89 void engine_load_dasync_internal(void);
92 /* Set up digests. Just SHA1 for now */
93 static int dasync_digests(ENGINE *e, const EVP_MD **digest,
94 const int **nids, int nid);
96 static void dummy_pause_job(void);
99 static int dasync_sha1_init(EVP_MD_CTX *ctx);
100 static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data,
102 static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
105 * Holds the EVP_MD object for sha1 in this engine. Set up once only during
106 * engine bind and can then be reused many times.
108 static EVP_MD *_hidden_sha1_md = NULL;
109 static const EVP_MD *dasync_sha1(void)
111 return _hidden_sha1_md;
113 static void destroy_digests(void)
115 EVP_MD_meth_free(_hidden_sha1_md);
116 _hidden_sha1_md = NULL;
119 static int dasync_digest_nids(const int **nids)
121 static int digest_nids[2] = { 0, 0 };
127 if ((md = dasync_sha1()) != NULL)
128 digest_nids[pos++] = EVP_MD_type(md);
129 digest_nids[pos] = 0;
138 static int dasync_pub_enc(int flen, const unsigned char *from,
139 unsigned char *to, RSA *rsa, int padding);
140 static int dasync_pub_dec(int flen, const unsigned char *from,
141 unsigned char *to, RSA *rsa, int padding);
142 static int dasync_rsa_priv_enc(int flen, const unsigned char *from,
143 unsigned char *to, RSA *rsa, int padding);
144 static int dasync_rsa_priv_dec(int flen, const unsigned char *from,
145 unsigned char *to, RSA *rsa, int padding);
146 static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
149 static int dasync_rsa_init(RSA *rsa);
150 static int dasync_rsa_finish(RSA *rsa);
152 static RSA_METHOD dasync_rsa_method = {
153 "Dummy Async RSA method",
154 dasync_pub_enc, /* pub_enc */
155 dasync_pub_dec, /* pub_dec */
156 dasync_rsa_priv_enc, /* priv_enc */
157 dasync_rsa_priv_dec, /* priv_dec */
158 dasync_rsa_mod_exp, /* rsa_mod_exp */
159 BN_mod_exp_mont, /* bn_mod_exp */
160 dasync_rsa_init, /* init */
161 dasync_rsa_finish, /* finish */
166 NULL /* rsa_keygen */
172 static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
174 static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
175 const unsigned char *iv, int enc);
176 static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
177 const unsigned char *in, size_t inl);
178 static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx);
180 static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
182 static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
183 const unsigned char *key,
184 const unsigned char *iv,
186 static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
188 const unsigned char *in,
190 static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx);
192 struct dasync_pipeline_ctx {
193 void *inner_cipher_data;
194 unsigned int numpipes;
195 unsigned char **inbufs;
196 unsigned char **outbufs;
199 unsigned char tlsaad[SSL_MAX_PIPELINES][EVP_AEAD_TLS1_AAD_LEN];
204 * Holds the EVP_CIPHER object for aes_128_cbc in this engine. Set up once only
205 * during engine bind and can then be reused many times.
207 static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
208 static const EVP_CIPHER *dasync_aes_128_cbc(void)
210 return _hidden_aes_128_cbc;
214 * Holds the EVP_CIPHER object for aes_128_cbc_hmac_sha1 in this engine. Set up
215 * once only during engine bind and can then be reused many times.
217 static EVP_CIPHER *_hidden_aes_128_cbc_hmac_sha1 = NULL;
218 static const EVP_CIPHER *dasync_aes_128_cbc_hmac_sha1(void)
220 return _hidden_aes_128_cbc_hmac_sha1;
223 static void destroy_ciphers(void)
225 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
226 EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
227 _hidden_aes_128_cbc = NULL;
228 _hidden_aes_128_cbc_hmac_sha1 = NULL;
231 static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
232 const int **nids, int nid);
234 static int dasync_cipher_nids[] = {
236 NID_aes_128_cbc_hmac_sha1,
240 static int bind_dasync(ENGINE *e)
242 /* Ensure the dasync error handling is set up */
243 ERR_load_DASYNC_strings();
245 if (!ENGINE_set_id(e, engine_dasync_id)
246 || !ENGINE_set_name(e, engine_dasync_name)
247 || !ENGINE_set_RSA(e, &dasync_rsa_method)
248 || !ENGINE_set_digests(e, dasync_digests)
249 || !ENGINE_set_ciphers(e, dasync_ciphers)
250 || !ENGINE_set_destroy_function(e, dasync_destroy)
251 || !ENGINE_set_init_function(e, dasync_init)
252 || !ENGINE_set_finish_function(e, dasync_finish)) {
253 DASYNCerr(DASYNC_F_BIND_DASYNC, DASYNC_R_INIT_FAILED);
258 * Set up the EVP_CIPHER and EVP_MD objects for the ciphers/digests
259 * supplied by this engine
261 _hidden_sha1_md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption);
262 if (_hidden_sha1_md == NULL
263 || !EVP_MD_meth_set_result_size(_hidden_sha1_md, SHA_DIGEST_LENGTH)
264 || !EVP_MD_meth_set_input_blocksize(_hidden_sha1_md, SHA_CBLOCK)
265 || !EVP_MD_meth_set_app_datasize(_hidden_sha1_md,
266 sizeof(EVP_MD *) + sizeof(SHA_CTX))
267 || !EVP_MD_meth_set_flags(_hidden_sha1_md, EVP_MD_FLAG_DIGALGID_ABSENT)
268 || !EVP_MD_meth_set_init(_hidden_sha1_md, dasync_sha1_init)
269 || !EVP_MD_meth_set_update(_hidden_sha1_md, dasync_sha1_update)
270 || !EVP_MD_meth_set_final(_hidden_sha1_md, dasync_sha1_final)) {
271 EVP_MD_meth_free(_hidden_sha1_md);
272 _hidden_sha1_md = NULL;
275 _hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
278 if (_hidden_aes_128_cbc == NULL
279 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
280 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
281 EVP_CIPH_FLAG_DEFAULT_ASN1
283 | EVP_CIPH_FLAG_PIPELINE)
284 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
285 dasync_aes128_init_key)
286 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
287 dasync_aes128_cbc_cipher)
288 || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc,
289 dasync_aes128_cbc_cleanup)
290 || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc,
291 dasync_aes128_cbc_ctrl)
292 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
293 sizeof(struct dasync_pipeline_ctx))) {
294 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
295 _hidden_aes_128_cbc = NULL;
298 _hidden_aes_128_cbc_hmac_sha1 = EVP_CIPHER_meth_new(
299 NID_aes_128_cbc_hmac_sha1,
302 if (_hidden_aes_128_cbc_hmac_sha1 == NULL
303 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc_hmac_sha1,16)
304 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc_hmac_sha1,
306 | EVP_CIPH_FLAG_DEFAULT_ASN1
307 | EVP_CIPH_FLAG_AEAD_CIPHER
308 | EVP_CIPH_FLAG_PIPELINE)
309 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc_hmac_sha1,
310 dasync_aes128_cbc_hmac_sha1_init_key)
311 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc_hmac_sha1,
312 dasync_aes128_cbc_hmac_sha1_cipher)
313 || !EVP_CIPHER_meth_set_cleanup(_hidden_aes_128_cbc_hmac_sha1,
314 dasync_aes128_cbc_hmac_sha1_cleanup)
315 || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc_hmac_sha1,
316 dasync_aes128_cbc_hmac_sha1_ctrl)
317 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc_hmac_sha1,
318 sizeof(struct dasync_pipeline_ctx))) {
319 EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
320 _hidden_aes_128_cbc_hmac_sha1 = NULL;
326 # ifndef OPENSSL_NO_DYNAMIC_ENGINE
327 static int bind_helper(ENGINE *e, const char *id)
329 if (id && (strcmp(id, engine_dasync_id) != 0))
336 IMPLEMENT_DYNAMIC_CHECK_FN()
337 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
340 static ENGINE *engine_dasync(void)
342 ENGINE *ret = ENGINE_new();
345 if (!bind_dasync(ret)) {
352 void engine_load_dasync_internal(void)
354 ENGINE *toadd = engine_dasync();
362 static int dasync_init(ENGINE *e)
368 static int dasync_finish(ENGINE *e)
374 static int dasync_destroy(ENGINE *e)
378 ERR_unload_DASYNC_strings();
382 static int dasync_digests(ENGINE *e, const EVP_MD **digest,
383 const int **nids, int nid)
387 /* We are returning a list of supported nids */
388 return dasync_digest_nids(nids);
390 /* We are being asked for a specific digest */
393 *digest = dasync_sha1();
403 static int dasync_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
404 const int **nids, int nid)
407 if (cipher == NULL) {
408 /* We are returning a list of supported nids */
409 *nids = dasync_cipher_nids;
410 return (sizeof(dasync_cipher_nids) -
411 1) / sizeof(dasync_cipher_nids[0]);
413 /* We are being asked for a specific cipher */
415 case NID_aes_128_cbc:
416 *cipher = dasync_aes_128_cbc();
418 case NID_aes_128_cbc_hmac_sha1:
419 *cipher = dasync_aes_128_cbc_hmac_sha1();
429 static void wait_cleanup(ASYNC_WAIT_CTX *ctx, const void *key,
430 OSSL_ASYNC_FD readfd, void *pvwritefd)
432 OSSL_ASYNC_FD *pwritefd = (OSSL_ASYNC_FD *)pvwritefd;
433 #if defined(ASYNC_WIN)
435 CloseHandle(*pwritefd);
436 #elif defined(ASYNC_POSIX)
440 OPENSSL_free(pwritefd);
443 #define DUMMY_CHAR 'X'
445 static void dummy_pause_job(void) {
447 ASYNC_WAIT_CTX *waitctx;
448 OSSL_ASYNC_FD pipefds[2] = {0, 0};
449 OSSL_ASYNC_FD *writefd;
450 #if defined(ASYNC_WIN)
451 DWORD numwritten, numread;
452 char buf = DUMMY_CHAR;
453 #elif defined(ASYNC_POSIX)
454 char buf = DUMMY_CHAR;
457 if ((job = ASYNC_get_current_job()) == NULL)
460 waitctx = ASYNC_get_wait_ctx(job);
462 if (ASYNC_WAIT_CTX_get_fd(waitctx, engine_dasync_id, &pipefds[0],
463 (void **)&writefd)) {
464 pipefds[1] = *writefd;
466 writefd = OPENSSL_malloc(sizeof(*writefd));
469 #if defined(ASYNC_WIN)
470 if (CreatePipe(&pipefds[0], &pipefds[1], NULL, 256) == 0) {
471 OPENSSL_free(writefd);
474 #elif defined(ASYNC_POSIX)
475 if (pipe(pipefds) != 0) {
476 OPENSSL_free(writefd);
480 *writefd = pipefds[1];
482 if(!ASYNC_WAIT_CTX_set_wait_fd(waitctx, engine_dasync_id, pipefds[0],
483 writefd, wait_cleanup)) {
484 wait_cleanup(waitctx, engine_dasync_id, pipefds[0], writefd);
489 * In the Dummy async engine we are cheating. We signal that the job
490 * is complete by waking it before the call to ASYNC_pause_job(). A real
491 * async engine would only wake when the job was actually complete
493 #if defined(ASYNC_WIN)
494 WriteFile(pipefds[1], &buf, 1, &numwritten, NULL);
495 #elif defined(ASYNC_POSIX)
496 if (write(pipefds[1], &buf, 1) < 0)
500 /* Ignore errors - we carry on anyway */
503 /* Clear the wake signal */
504 #if defined(ASYNC_WIN)
505 ReadFile(pipefds[0], &buf, 1, &numread, NULL);
506 #elif defined(ASYNC_POSIX)
507 if (read(pipefds[0], &buf, 1) < 0)
513 * SHA1 implementation. At the moment we just defer to the standard
517 #define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
518 static int dasync_sha1_init(EVP_MD_CTX *ctx)
522 return SHA1_Init(data(ctx));
525 static int dasync_sha1_update(EVP_MD_CTX *ctx, const void *data,
530 return SHA1_Update(data(ctx), data, (size_t)count);
533 static int dasync_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
537 return SHA1_Final(md, data(ctx));
544 static int dasync_pub_enc(int flen, const unsigned char *from,
545 unsigned char *to, RSA *rsa, int padding) {
546 /* Ignore errors - we carry on anyway */
548 return RSA_PKCS1_OpenSSL()->rsa_pub_enc(flen, from, to, rsa, padding);
551 static int dasync_pub_dec(int flen, const unsigned char *from,
552 unsigned char *to, RSA *rsa, int padding) {
553 /* Ignore errors - we carry on anyway */
555 return RSA_PKCS1_OpenSSL()->rsa_pub_dec(flen, from, to, rsa, padding);
558 static int dasync_rsa_priv_enc(int flen, const unsigned char *from,
559 unsigned char *to, RSA *rsa, int padding)
561 /* Ignore errors - we carry on anyway */
563 return RSA_PKCS1_OpenSSL()->rsa_priv_enc(flen, from, to, rsa, padding);
566 static int dasync_rsa_priv_dec(int flen, const unsigned char *from,
567 unsigned char *to, RSA *rsa, int padding)
569 /* Ignore errors - we carry on anyway */
571 return RSA_PKCS1_OpenSSL()->rsa_priv_dec(flen, from, to, rsa, padding);
574 static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
576 /* Ignore errors - we carry on anyway */
578 return RSA_PKCS1_OpenSSL()->rsa_mod_exp(r0, I, rsa, ctx);
581 static int dasync_rsa_init(RSA *rsa)
583 return RSA_PKCS1_OpenSSL()->init(rsa);
585 static int dasync_rsa_finish(RSA *rsa)
587 return RSA_PKCS1_OpenSSL()->finish(rsa);
590 /* Cipher helper functions */
592 static int dasync_cipher_ctrl_helper(EVP_CIPHER_CTX *ctx, int type, int arg,
593 void *ptr, int aeadcapable)
596 struct dasync_pipeline_ctx *pipe_ctx =
597 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
599 if (pipe_ctx == NULL)
603 case EVP_CTRL_SET_PIPELINE_OUTPUT_BUFS:
604 pipe_ctx->numpipes = arg;
605 pipe_ctx->outbufs = (unsigned char **)ptr;
608 case EVP_CTRL_SET_PIPELINE_INPUT_BUFS:
609 pipe_ctx->numpipes = arg;
610 pipe_ctx->inbufs = (unsigned char **)ptr;
613 case EVP_CTRL_SET_PIPELINE_INPUT_LENS:
614 pipe_ctx->numpipes = arg;
615 pipe_ctx->lens = (size_t *)ptr;
618 case EVP_CTRL_AEAD_SET_MAC_KEY:
621 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
622 ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_cbc_hmac_sha1())
623 (ctx, type, arg, ptr);
624 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
627 case EVP_CTRL_AEAD_TLS1_AAD:
629 unsigned char *p = ptr;
632 if (!aeadcapable || arg != EVP_AEAD_TLS1_AAD_LEN)
635 if (pipe_ctx->aadctr >= SSL_MAX_PIPELINES)
638 memcpy(pipe_ctx->tlsaad[pipe_ctx->aadctr], ptr,
639 EVP_AEAD_TLS1_AAD_LEN);
642 len = p[arg - 2] << 8 | p[arg - 1];
645 if ((p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
646 len -= AES_BLOCK_SIZE;
649 return ((len + SHA_DIGEST_LENGTH + AES_BLOCK_SIZE)
650 & -AES_BLOCK_SIZE) - len;
652 return SHA_DIGEST_LENGTH;
663 static int dasync_cipher_init_key_helper(EVP_CIPHER_CTX *ctx,
664 const unsigned char *key,
665 const unsigned char *iv, int enc,
666 const EVP_CIPHER *cipher)
669 struct dasync_pipeline_ctx *pipe_ctx =
670 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
672 if (pipe_ctx->inner_cipher_data == NULL
673 && EVP_CIPHER_impl_ctx_size(cipher) != 0) {
674 pipe_ctx->inner_cipher_data = OPENSSL_zalloc(
675 EVP_CIPHER_impl_ctx_size(cipher));
676 if (pipe_ctx->inner_cipher_data == NULL) {
677 DASYNCerr(DASYNC_F_DASYNC_CIPHER_INIT_KEY_HELPER,
678 ERR_R_MALLOC_FAILURE);
683 pipe_ctx->numpipes = 0;
684 pipe_ctx->aadctr = 0;
686 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
687 ret = EVP_CIPHER_meth_get_init(cipher)(ctx, key, iv, enc);
688 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
693 static int dasync_cipher_helper(EVP_CIPHER_CTX *ctx, unsigned char *out,
694 const unsigned char *in, size_t inl,
695 const EVP_CIPHER *cipher)
698 unsigned int i, pipes;
699 struct dasync_pipeline_ctx *pipe_ctx =
700 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
702 pipes = pipe_ctx->numpipes;
703 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx->inner_cipher_data);
705 if (pipe_ctx->aadctr != 0) {
706 if (pipe_ctx->aadctr != 1)
708 EVP_CIPHER_meth_get_ctrl(cipher)
709 (ctx, EVP_CTRL_AEAD_TLS1_AAD,
710 EVP_AEAD_TLS1_AAD_LEN,
711 pipe_ctx->tlsaad[0]);
713 ret = EVP_CIPHER_meth_get_do_cipher(cipher)
716 if (pipe_ctx->aadctr > 0 && pipe_ctx->aadctr != pipes)
718 for (i = 0; i < pipes; i++) {
719 if (pipe_ctx->aadctr > 0) {
720 EVP_CIPHER_meth_get_ctrl(cipher)
721 (ctx, EVP_CTRL_AEAD_TLS1_AAD,
722 EVP_AEAD_TLS1_AAD_LEN,
723 pipe_ctx->tlsaad[i]);
725 ret = ret && EVP_CIPHER_meth_get_do_cipher(cipher)
726 (ctx, pipe_ctx->outbufs[i], pipe_ctx->inbufs[i],
729 pipe_ctx->numpipes = 0;
731 pipe_ctx->aadctr = 0;
732 EVP_CIPHER_CTX_set_cipher_data(ctx, pipe_ctx);
736 static int dasync_cipher_cleanup_helper(EVP_CIPHER_CTX *ctx,
737 const EVP_CIPHER *cipher)
739 struct dasync_pipeline_ctx *pipe_ctx =
740 (struct dasync_pipeline_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
742 OPENSSL_clear_free(pipe_ctx->inner_cipher_data,
743 EVP_CIPHER_impl_ctx_size(cipher));
749 * AES128 CBC Implementation
752 static int dasync_aes128_cbc_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
755 return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 0);
758 static int dasync_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
759 const unsigned char *iv, int enc)
761 return dasync_cipher_init_key_helper(ctx, key, iv, enc, EVP_aes_128_cbc());
764 static int dasync_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
765 const unsigned char *in, size_t inl)
767 return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc());
770 static int dasync_aes128_cbc_cleanup(EVP_CIPHER_CTX *ctx)
772 return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc());
777 * AES128 CBC HMAC SHA1 Implementation
780 static int dasync_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
783 return dasync_cipher_ctrl_helper(ctx, type, arg, ptr, 1);
786 static int dasync_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
787 const unsigned char *key,
788 const unsigned char *iv,
791 return dasync_cipher_init_key_helper(ctx, key, iv, enc,
792 EVP_aes_128_cbc_hmac_sha1());
795 static int dasync_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
797 const unsigned char *in,
800 return dasync_cipher_helper(ctx, out, in, inl, EVP_aes_128_cbc_hmac_sha1());
803 static int dasync_aes128_cbc_hmac_sha1_cleanup(EVP_CIPHER_CTX *ctx)
805 return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc_hmac_sha1());