-/* engines/e_dasync.c */
/*
* Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
*/
#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_SYS_CYGWIN)) && defined(OPENSSL_THREADS)
+# undef ASYNC_POSIX
+# define ASYNC_POSIX
+# include <unistd.h>
+#elif defined(_WIN32)
+# undef ASYNC_WIN
+# define ASYNC_WIN
+# include <windows.h>
+#endif
#define DASYNC_LIB_NAME "DASYNC"
#include "e_dasync_err.c"
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 */
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;
+}
+
+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_type(md);
+ digest_nids[pos] = 0;
+ init = 1;
+ }
+ *nids = digest_nids;
+ return pos;
+}
/* RSA */
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 RSA_METHOD *dasync_rsa_method = NULL;
+
+/* 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_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;
+ int enc;
+ 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;
+}
+
+/*
+ * 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.
+ */
+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_128_cbc_hmac_sha1);
+ _hidden_aes_128_cbc = 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_128_cbc_hmac_sha1,
+ 0
+};
static int bind_dasync(ENGINE *e)
{
+ /* Setup RSA_METHOD */
+ if ((dasync_rsa_method = RSA_meth_new("Dummy Async RSA method", 0)) == NULL
+ || RSA_meth_set_pub_enc(dasync_rsa_method, dasync_pub_enc) == 0
+ || RSA_meth_set_pub_dec(dasync_rsa_method, dasync_pub_dec) == 0
+ || RSA_meth_set_priv_enc(dasync_rsa_method, dasync_rsa_priv_enc) == 0
+ || RSA_meth_set_priv_enc(dasync_rsa_method, dasync_rsa_priv_dec) == 0
+ || RSA_meth_set_mod_exp(dasync_rsa_method, dasync_rsa_mod_exp) == 0
+ || RSA_meth_set_bn_mod_exp(dasync_rsa_method, BN_mod_exp_mont) == 0
+ || RSA_meth_set_init(dasync_rsa_method, dasync_rsa_init) == 0
+ || RSA_meth_set_finish(dasync_rsa_method, dasync_rsa_finish) == 0) {
+ DASYNCerr(DASYNC_F_BIND_DASYNC, DASYNC_R_INIT_FAILED);
+ return 0;
+ }
+
/* 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_RSA(e, dasync_rsa_method)
|| !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_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_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_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;
}
return ret;
}
-void ENGINE_load_dasync(void)
+void engine_load_dasync_int(void)
{
ENGINE *toadd = engine_dasync();
if (!toadd)
static int dasync_destroy(ENGINE *e)
{
+ destroy_digests();
+ destroy_ciphers();
+ RSA_meth_free(dasync_rsa_method);
ERR_unload_DASYNC_strings();
return 1;
}
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;
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_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;
+ 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_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 *)(ctx)->md_data)
+#define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
static int dasync_sha1_init(EVP_MD_CTX *ctx)
{
dummy_pause_job();
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);
+ return RSA_meth_get_pub_enc(RSA_PKCS1_OpenSSL())
+ (flen, from, to, rsa, padding);
}
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);
+ return RSA_meth_get_pub_dec(RSA_PKCS1_OpenSSL())
+ (flen, from, to, rsa, padding);
}
static int dasync_rsa_priv_enc(int flen, const unsigned char *from,
{
/* Ignore errors - we carry on anyway */
dummy_pause_job();
- return RSA_PKCS1_OpenSSL()->rsa_priv_enc(flen, from, to, rsa, padding);
+ return RSA_meth_get_priv_enc(RSA_PKCS1_OpenSSL())
+ (flen, from, to, rsa, padding);
}
static int dasync_rsa_priv_dec(int flen, const unsigned char *from,
{
/* Ignore errors - we carry on anyway */
dummy_pause_job();
- return RSA_PKCS1_OpenSSL()->rsa_priv_dec(flen, from, to, rsa, padding);
+ return RSA_meth_get_priv_dec(RSA_PKCS1_OpenSSL())
+ (flen, from, to, rsa, padding);
}
static int dasync_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx)
{
/* Ignore errors - we carry on anyway */
dummy_pause_job();
- return RSA_PKCS1_OpenSSL()->rsa_mod_exp(r0, I, rsa, ctx);
+ return RSA_meth_get_mod_exp(RSA_PKCS1_OpenSSL())(r0, I, rsa, ctx);
}
static int dasync_rsa_init(RSA *rsa)
{
- return RSA_PKCS1_OpenSSL()->init(rsa);
+ return RSA_meth_get_init(RSA_PKCS1_OpenSSL())(rsa);
}
static int dasync_rsa_finish(RSA *rsa)
{
- return RSA_PKCS1_OpenSSL()->finish(rsa);
+ return RSA_meth_get_finish(RSA_PKCS1_OpenSSL())(rsa);
+}
+
+/* Cipher helper functions */
+
+static int dasync_cipher_ctrl_helper(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr, int aeadcapable)
+{
+ 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_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 (pipe_ctx->enc) {
+ if ((p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
+ 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) {
+ DASYNCerr(DASYNC_F_DASYNC_CIPHER_INIT_KEY_HELPER,
+ ERR_R_MALLOC_FAILURE);
+ 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);
+}
+
+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());
+}
+
+
+/*
+ * 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);
+}
+
+static int dasync_aes128_cbc_hmac_sha1_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_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)
+{
+ return dasync_cipher_cleanup_helper(ctx, EVP_aes_128_cbc_hmac_sha1());
}
projects / openssl.git / blobdiff