/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
* Copyright 2005 Nokia. All rights reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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
#include <stdio.h>
#include "ssl_locl.h"
+#include "record/record_locl.h"
+#include "internal/ktls.h"
+#include "internal/cryptlib.h"
#include <openssl/comp.h>
#include <openssl/evp.h>
#include <openssl/kdf.h>
#include <openssl/rand.h>
+#include <openssl/obj_mac.h>
/* seed1 through seed5 are concatenated */
static int tls1_PRF(SSL *s,
EVP_PKEY *mac_key;
size_t n, i, j, k, cl;
int reuse_dd = 0;
+#ifndef OPENSSL_NO_KTLS
+ struct tls12_crypto_info_aes_gcm_128 crypto_info;
+ BIO *wbio;
+ unsigned char geniv[12];
+#endif
c = s->s3->tmp.new_sym_enc;
m = s->s3->tmp.new_hash;
}
dd = s->enc_read_ctx;
mac_ctx = ssl_replace_hash(&s->read_hash, NULL);
- if (mac_ctx == NULL)
+ if (mac_ctx == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
+ ERR_R_INTERNAL_ERROR);
goto err;
+ }
#ifndef OPENSSL_NO_COMP
COMP_CTX_free(s->expand);
s->expand = NULL;
mac_secret = &(s->s3->read_mac_secret[0]);
mac_secret_size = &(s->s3->read_mac_secret_size);
} else {
- s->statem.invalid_enc_write_ctx = 1;
+ s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
if (s->ext.use_etm)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
else
ERR_R_MALLOC_FAILURE);
goto err;
}
- EVP_CIPHER_CTX_ctrl(s->enc_write_ctx, EVP_CTRL_SET_DRBG, 0, s->drbg);
dd = s->enc_write_ctx;
if (SSL_IS_DTLS(s)) {
mac_ctx = EVP_MD_CTX_new();
if (!(EVP_CIPHER_flags(c) & EVP_CIPH_FLAG_AEAD_CIPHER)) {
/* TODO(size_t): Convert this function */
- mac_key = EVP_PKEY_new_raw_private_key(mac_type, NULL, mac_secret,
+ mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, mac_secret,
(int)*mac_secret_size);
if (mac_key == NULL
|| EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
ERR_R_INTERNAL_ERROR);
goto err;
}
- s->statem.invalid_enc_write_ctx = 0;
+#ifndef OPENSSL_NO_KTLS
+ if (s->compress)
+ goto skip_ktls;
+
+ if ((which & SSL3_CC_READ) ||
+ ((which & SSL3_CC_WRITE) && (s->mode & SSL_MODE_NO_KTLS_TX)))
+ goto skip_ktls;
+
+ /* ktls supports only the maximum fragment size */
+ if (ssl_get_max_send_fragment(s) != SSL3_RT_MAX_PLAIN_LENGTH)
+ goto skip_ktls;
+
+ /* check that cipher is AES_GCM_128 */
+ if (EVP_CIPHER_nid(c) != NID_aes_128_gcm
+ || EVP_CIPHER_mode(c) != EVP_CIPH_GCM_MODE
+ || EVP_CIPHER_key_length(c) != TLS_CIPHER_AES_GCM_128_KEY_SIZE)
+ goto skip_ktls;
+
+ /* check version is 1.2 */
+ if (s->version != TLS1_2_VERSION)
+ goto skip_ktls;
+
+ wbio = s->wbio;
+ if (!ossl_assert(wbio != NULL)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ /* All future data will get encrypted by ktls. Flush the BIO or skip ktls */
+ if (BIO_flush(wbio) <= 0)
+ goto skip_ktls;
+
+ /* ktls doesn't support renegotiation */
+ if (BIO_get_ktls_send(s->wbio)) {
+ SSLfatal(s, SSL_AD_NO_RENEGOTIATION, SSL_F_TLS1_CHANGE_CIPHER_STATE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ memset(&crypto_info, 0, sizeof(crypto_info));
+ crypto_info.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+ crypto_info.info.version = s->version;
+
+ EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GET_IV,
+ EVP_GCM_TLS_FIXED_IV_LEN + EVP_GCM_TLS_EXPLICIT_IV_LEN,
+ geniv);
+ memcpy(crypto_info.iv, geniv + EVP_GCM_TLS_FIXED_IV_LEN,
+ TLS_CIPHER_AES_GCM_128_IV_SIZE);
+ memcpy(crypto_info.salt, geniv, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
+ memcpy(crypto_info.key, key, EVP_CIPHER_key_length(c));
+ memcpy(crypto_info.rec_seq, &s->rlayer.write_sequence,
+ TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
+
+ /* ktls works with user provided buffers directly */
+ if (BIO_set_ktls(wbio, &crypto_info, which & SSL3_CC_WRITE)) {
+ ssl3_release_write_buffer(s);
+ SSL_set_options(s, SSL_OP_NO_RENEGOTIATION);
+ }
+
+ skip_ktls:
+#endif /* OPENSSL_NO_KTLS */
+ s->statem.enc_write_state = ENC_WRITE_STATE_VALID;
#ifdef SSL_DEBUG
printf("which = %04X\nkey=", which);