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wolfssl/wolfssl/internal.h

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/* internal.h
*
* Copyright (C) 2006-2017 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifndef WOLFSSL_INT_H
#define WOLFSSL_INT_H
#include <wolfssl/wolfcrypt/types.h>
#include <wolfssl/ssl.h>
#ifdef HAVE_CRL
#include <wolfssl/crl.h>
#endif
#include <wolfssl/wolfcrypt/random.h>
#ifndef NO_DES3
#include <wolfssl/wolfcrypt/des3.h>
#endif
#ifndef NO_HC128
#include <wolfssl/wolfcrypt/hc128.h>
#endif
#ifndef NO_RABBIT
#include <wolfssl/wolfcrypt/rabbit.h>
#endif
#ifdef HAVE_CHACHA
#include <wolfssl/wolfcrypt/chacha.h>
#endif
#ifndef NO_ASN
#include <wolfssl/wolfcrypt/asn.h>
#include <wolfssl/wolfcrypt/pkcs12.h>
#endif
#ifndef NO_MD5
#include <wolfssl/wolfcrypt/md5.h>
#endif
#ifndef NO_SHA
#include <wolfssl/wolfcrypt/sha.h>
#endif
#ifndef NO_AES
#include <wolfssl/wolfcrypt/aes.h>
#endif
#ifdef HAVE_POLY1305
#include <wolfssl/wolfcrypt/poly1305.h>
#endif
#ifdef HAVE_CAMELLIA
#include <wolfssl/wolfcrypt/camellia.h>
#endif
#include <wolfssl/wolfcrypt/logging.h>
#ifndef NO_HMAC
#include <wolfssl/wolfcrypt/hmac.h>
#endif
#ifndef NO_RC4
#include <wolfssl/wolfcrypt/arc4.h>
#endif
#ifdef HAVE_ECC
#include <wolfssl/wolfcrypt/ecc.h>
#endif
#ifdef HAVE_ED25519
#include <wolfssl/wolfcrypt/ed25519.h>
#endif
#ifdef HAVE_CURVE25519
#include <wolfssl/wolfcrypt/curve25519.h>
#endif
#ifndef NO_SHA256
#include <wolfssl/wolfcrypt/sha256.h>
#endif
#ifdef HAVE_OCSP
#include <wolfssl/ocsp.h>
#endif
#ifdef WOLFSSL_SHA512
#include <wolfssl/wolfcrypt/sha512.h>
#endif
#ifdef HAVE_AESGCM
#include <wolfssl/wolfcrypt/sha512.h>
#endif
#ifdef WOLFSSL_RIPEMD
#include <wolfssl/wolfcrypt/ripemd.h>
#endif
#ifdef HAVE_IDEA
#include <wolfssl/wolfcrypt/idea.h>
#endif
#ifndef NO_RSA
#include <wolfssl/wolfcrypt/rsa.h>
#endif
#ifdef HAVE_ECC
#include <wolfssl/wolfcrypt/ecc.h>
#endif
#ifndef NO_DH
#include <wolfssl/wolfcrypt/dh.h>
#endif
#include <wolfssl/wolfcrypt/hash.h>
#ifdef WOLFSSL_CALLBACKS
#include <wolfssl/callbacks.h>
#include <signal.h>
#endif
#ifdef USE_WINDOWS_API
#ifdef WOLFSSL_GAME_BUILD
#include "system/xtl.h"
#else
#if defined(_WIN32_WCE) || defined(WIN32_LEAN_AND_MEAN)
/* On WinCE winsock2.h must be included before windows.h */
#include <winsock2.h>
#endif
#include <windows.h>
#endif
#elif defined(THREADX)
#ifndef SINGLE_THREADED
#include "tx_api.h"
#endif
#elif defined(MICRIUM)
/* do nothing, just don't pick Unix */
#elif defined(FREERTOS) || defined(FREERTOS_TCP) || defined(WOLFSSL_SAFERTOS)
/* do nothing */
#elif defined(EBSNET)
/* do nothing */
#elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
/* do nothing */
#elif defined(FREESCALE_FREE_RTOS)
#include "fsl_os_abstraction.h"
#elif defined(WOLFSSL_uITRON4)
/* do nothing */
#elif defined(WOLFSSL_uTKERNEL2)
/* do nothing */
#elif defined(WOLFSSL_MDK_ARM)
#if defined(WOLFSSL_MDK5)
#include "cmsis_os.h"
#else
#include <rtl.h>
#endif
#elif defined(WOLFSSL_CMSIS_RTOS)
#include "cmsis_os.h"
#elif defined(MBED)
#elif defined(WOLFSSL_TIRTOS)
/* do nothing */
#elif defined(INTIME_RTOS)
#include <rt.h>
#else
#ifndef SINGLE_THREADED
#define WOLFSSL_PTHREADS
#include <pthread.h>
#endif
#if defined(OPENSSL_EXTRA) || defined(GOAHEAD_WS)
#include <unistd.h> /* for close of BIO */
#endif
#endif
#ifndef CHAR_BIT
/* Needed for DTLS without big math */
#include <limits.h>
#endif
#ifdef HAVE_LIBZ
#include "zlib.h"
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
#include <wolfssl/wolfcrypt/async.h>
#endif
#ifdef OPENSSL_EXTRA
#ifdef WOLFCRYPT_HAVE_SRP
#include <wolfssl/wolfcrypt/srp.h>
#endif
#endif
#ifdef _MSC_VER
/* 4996 warning to use MS extensions e.g., strcpy_s instead of strncpy */
#pragma warning(disable: 4996)
#endif
#ifdef NO_SHA
#define WC_SHA_DIGEST_SIZE 20
#endif
#ifdef NO_SHA256
#define WC_SHA256_DIGEST_SIZE 32
#endif
#ifdef NO_MD5
#define WC_MD5_DIGEST_SIZE 16
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Define or comment out the cipher suites you'd like to be compiled in
make sure to use at least one BUILD_SSL_xxx or BUILD_TLS_xxx is defined
When adding cipher suites, add name to cipher_names, idx to cipher_name_idx
Now that there is a maximum strength crypto build, the following BUILD_XXX
flags need to be divided into two groups selected by WOLFSSL_MAX_STRENGTH.
Those that do not use Perfect Forward Security and do not use AEAD ciphers
need to be switched off. Allowed suites use (EC)DHE, AES-GCM|CCM, or
CHACHA-POLY.
*/
/* Check that if WOLFSSL_MAX_STRENGTH is set that all the required options are
* not turned off. */
#if defined(WOLFSSL_MAX_STRENGTH) && \
((!defined(HAVE_ECC) && (defined(NO_DH) || defined(NO_RSA))) || \
(!defined(HAVE_AESGCM) && !defined(HAVE_AESCCM) && \
(!defined(HAVE_POLY1305) || !defined(HAVE_CHACHA))) || \
(defined(NO_SHA256) && !defined(WOLFSSL_SHA384)) || \
!defined(NO_OLD_TLS))
#error "You are trying to build max strength with requirements disabled."
#endif
/* Have QSH : Quantum-safe Handshake */
#if defined(HAVE_QSH)
#define BUILD_TLS_QSH
#endif
#ifndef WOLFSSL_MAX_STRENGTH
#if !defined(NO_RSA) && !defined(NO_RC4)
#if defined(WOLFSSL_STATIC_RSA)
#if !defined(NO_SHA)
#define BUILD_SSL_RSA_WITH_RC4_128_SHA
#endif
#if !defined(NO_MD5)
#define BUILD_SSL_RSA_WITH_RC4_128_MD5
#endif
#endif
#if !defined(NO_TLS) && defined(HAVE_NTRU) && !defined(NO_SHA) \
&& defined(WOLFSSL_STATIC_RSA)
#define BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
#endif
#endif
#if !defined(NO_RSA) && !defined(NO_DES3)
#if !defined(NO_SHA)
#if defined(WOLFSSL_STATIC_RSA)
#define BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
#endif
#if !defined(NO_TLS) && defined(HAVE_NTRU) \
&& defined(WOLFSSL_STATIC_RSA)
#define BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
#endif
#endif
#endif
#if !defined(NO_RSA) && defined(HAVE_IDEA)
#if !defined(NO_SHA) && defined(WOLFSSL_STATIC_RSA)
#define BUILD_SSL_RSA_WITH_IDEA_CBC_SHA
#endif
#endif
#if !defined(NO_RSA) && !defined(NO_AES) && !defined(NO_TLS)
#if !defined(NO_SHA)
#if defined(WOLFSSL_STATIC_RSA)
#define BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
#endif
#if defined(HAVE_NTRU) && defined(WOLFSSL_STATIC_RSA)
#define BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
#endif
#endif
#if defined(WOLFSSL_STATIC_RSA)
#if !defined (NO_SHA256)
#define BUILD_TLS_RSA_WITH_AES_128_CBC_SHA256
#define BUILD_TLS_RSA_WITH_AES_256_CBC_SHA256
#endif
#if defined (HAVE_AESGCM)
#define BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
#if defined (WOLFSSL_SHA384)
#define BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#if defined (HAVE_AESCCM)
#define BUILD_TLS_RSA_WITH_AES_128_CCM_8
#define BUILD_TLS_RSA_WITH_AES_256_CCM_8
#endif
#if defined(HAVE_BLAKE2)
#define BUILD_TLS_RSA_WITH_AES_128_CBC_B2B256
#define BUILD_TLS_RSA_WITH_AES_256_CBC_B2B256
#endif
#endif
#endif
#if defined(HAVE_CAMELLIA) && !defined(NO_TLS)
#ifndef NO_RSA
#if defined(WOLFSSL_STATIC_RSA)
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
#define BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
#endif
#ifndef NO_SHA256
#define BUILD_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
#define BUILD_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
#endif
#endif
#if !defined(NO_DH)
#if !defined(NO_SHA)
#define BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
#define BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
#endif
#ifndef NO_SHA256
#define BUILD_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
#define BUILD_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
#endif
#endif
#endif
#endif
#if defined(WOLFSSL_STATIC_PSK)
#if !defined(NO_PSK) && !defined(NO_AES) && !defined(NO_TLS)
#if !defined(NO_SHA)
#define BUILD_TLS_PSK_WITH_AES_128_CBC_SHA
#define BUILD_TLS_PSK_WITH_AES_256_CBC_SHA
#endif
#ifndef NO_SHA256
#define BUILD_TLS_PSK_WITH_AES_128_CBC_SHA256
#ifdef HAVE_AESGCM
#define BUILD_TLS_PSK_WITH_AES_128_GCM_SHA256
#endif
#ifdef HAVE_AESCCM
#define BUILD_TLS_PSK_WITH_AES_128_CCM_8
#define BUILD_TLS_PSK_WITH_AES_256_CCM_8
#define BUILD_TLS_PSK_WITH_AES_128_CCM
#define BUILD_TLS_PSK_WITH_AES_256_CCM
#endif
#endif
#ifdef WOLFSSL_SHA384
#define BUILD_TLS_PSK_WITH_AES_256_CBC_SHA384
#ifdef HAVE_AESGCM
#define BUILD_TLS_PSK_WITH_AES_256_GCM_SHA384
#endif
#endif
#endif
#endif
#if !defined(NO_TLS) && defined(HAVE_NULL_CIPHER)
#if !defined(NO_RSA)
#if defined(WOLFSSL_STATIC_RSA)
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_NULL_SHA
#endif
#ifndef NO_SHA256
#define BUILD_TLS_RSA_WITH_NULL_SHA256
#endif
#endif
#endif
#if !defined(NO_PSK) && defined(WOLFSSL_STATIC_PSK)
#if !defined(NO_SHA)
#define BUILD_TLS_PSK_WITH_NULL_SHA
#endif
#ifndef NO_SHA256
#define BUILD_TLS_PSK_WITH_NULL_SHA256
#endif
#ifdef WOLFSSL_SHA384
#define BUILD_TLS_PSK_WITH_NULL_SHA384
#endif
#endif
#endif
#if defined(WOLFSSL_STATIC_RSA)
#if !defined(NO_HC128) && !defined(NO_RSA) && !defined(NO_TLS)
#ifndef NO_MD5
#define BUILD_TLS_RSA_WITH_HC_128_MD5
#endif
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_HC_128_SHA
#endif
#if defined(HAVE_BLAKE2)
#define BUILD_TLS_RSA_WITH_HC_128_B2B256
#endif
#endif
#if !defined(NO_RABBIT) && !defined(NO_TLS) && !defined(NO_RSA)
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_RABBIT_SHA
#endif
#endif
#endif
#if !defined(NO_DH) && !defined(NO_AES) && !defined(NO_TLS) && \
!defined(NO_RSA)
#if !defined(NO_SHA)
#define BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
#if !defined(NO_DES3)
#define BUILD_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
#endif
#endif
#if !defined(NO_SHA256)
#define BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
#define BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
#endif
#endif
#if defined(HAVE_ANON) && !defined(NO_TLS) && !defined(NO_DH) && \
!defined(NO_AES) && !defined(NO_SHA)
#define BUILD_TLS_DH_anon_WITH_AES_128_CBC_SHA
#endif
#if !defined(NO_DH) && !defined(NO_PSK) && !defined(NO_TLS)
#ifndef NO_SHA256
#ifndef NO_AES
#define BUILD_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
#endif
#ifdef HAVE_NULL_CIPHER
#define BUILD_TLS_DHE_PSK_WITH_NULL_SHA256
#endif
#endif
#ifdef WOLFSSL_SHA384
#ifndef NO_AES
#define BUILD_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
#endif
#ifdef HAVE_NULL_CIPHER
#define BUILD_TLS_DHE_PSK_WITH_NULL_SHA384
#endif
#endif
#endif
#if defined(HAVE_ECC) && !defined(NO_TLS)
#if !defined(NO_AES)
#if !defined(NO_SHA)
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
#endif
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
#endif
#endif /* NO_SHA */
#ifndef NO_SHA256
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
#endif
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
#endif
#endif
#ifdef WOLFSSL_SHA384
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
#endif
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
#endif
#endif
#if defined (HAVE_AESGCM)
#if !defined(NO_RSA)
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
#endif
#if defined(WOLFSSL_SHA384)
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#endif
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
#endif
#if defined(WOLFSSL_SHA384)
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#endif
#endif /* NO_AES */
#if !defined(NO_RC4)
#if !defined(NO_SHA)
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_RC4_128_SHA
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
#endif
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
#endif
#endif
#endif
#if !defined(NO_DES3)
#ifndef NO_SHA
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
#endif
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
#if defined(WOLFSSL_STATIC_DH)
#define BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
#endif
#endif /* NO_SHA */
#endif
#if defined(HAVE_NULL_CIPHER)
#if !defined(NO_SHA)
#define BUILD_TLS_ECDHE_ECDSA_WITH_NULL_SHA
#endif
#if !defined(NO_PSK) && !defined(NO_SHA256)
#define BUILD_TLS_ECDHE_PSK_WITH_NULL_SHA256
#endif
#endif
#if !defined(NO_PSK) && !defined(NO_SHA256) && !defined(NO_AES)
#define BUILD_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
#endif
#endif
#if defined(HAVE_CHACHA) && defined(HAVE_POLY1305) && !defined(NO_SHA256)
#if !defined(NO_OLD_POLY1305)
#ifdef HAVE_ECC
#define BUILD_TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256
#ifndef NO_RSA
#define BUILD_TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256
#endif
#endif
#if !defined(NO_DH) && !defined(NO_RSA)
#define BUILD_TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256
#endif
#endif /* NO_OLD_POLY1305 */
#if !defined(NO_PSK)
#define BUILD_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256
#ifdef HAVE_ECC
#define BUILD_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256
#endif
#ifndef NO_DH
#define BUILD_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256
#endif
#endif /* !NO_PSK */
#endif
#endif /* !WOLFSSL_MAX_STRENGTH */
#if !defined(NO_DH) && !defined(NO_AES) && !defined(NO_TLS) && \
!defined(NO_RSA) && defined(HAVE_AESGCM)
#ifndef NO_SHA256
#define BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
#endif
#ifdef WOLFSSL_SHA384
#define BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#if !defined(NO_DH) && !defined(NO_PSK) && !defined(NO_TLS)
#ifndef NO_SHA256
#ifdef HAVE_AESGCM
#define BUILD_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
#endif
#ifdef HAVE_AESCCM
#define BUILD_TLS_DHE_PSK_WITH_AES_128_CCM
#define BUILD_TLS_DHE_PSK_WITH_AES_256_CCM
#endif
#endif
#if defined(WOLFSSL_SHA384) && defined(HAVE_AESGCM)
#define BUILD_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
#endif
#endif
#if defined(HAVE_ECC) && !defined(NO_TLS) && !defined(NO_AES)
#ifdef HAVE_AESGCM
#ifndef NO_SHA256
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
#ifndef NO_RSA
#define BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
#endif
#endif
#ifdef WOLFSSL_SHA384
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
#ifndef NO_RSA
#define BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#endif
#if defined(HAVE_AESCCM) && !defined(NO_SHA256)
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
#endif
#endif
#if defined(HAVE_CHACHA) && defined(HAVE_POLY1305) && !defined(NO_SHA256)
#ifdef HAVE_ECC
#define BUILD_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
#ifndef NO_RSA
#define BUILD_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
#endif
#endif
#if !defined(NO_DH) && !defined(NO_RSA)
#define BUILD_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256
#endif
#endif
#if defined(WOLFSSL_TLS13)
#ifdef HAVE_AESGCM
#ifndef NO_SHA256
#define BUILD_TLS_AES_128_GCM_SHA256
#endif
#ifdef WOLFSSL_SHA384
#define BUILD_TLS_AES_256_GCM_SHA384
#endif
#endif
#if defined(HAVE_CHACHA) && defined(HAVE_POLY1305)
#ifndef NO_SHA256
#define BUILD_TLS_CHACHA20_POLY1305_SHA256
#endif
#endif
#ifdef HAVE_AESCCM
#ifndef NO_SHA256
#define BUILD_TLS_AES_128_CCM_SHA256
#define BUILD_TLS_AES_128_CCM_8_SHA256
#endif
#endif
#endif
#ifdef WOLFSSL_MULTICAST
#if defined(HAVE_NULL_CIPHER) && !defined(NO_SHA256)
#define BUILD_WDM_WITH_NULL_SHA256
#endif
#endif
#if defined(BUILD_SSL_RSA_WITH_RC4_128_SHA) || \
defined(BUILD_SSL_RSA_WITH_RC4_128_MD5)
#define BUILD_ARC4
#endif
#if defined(BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA)
#define BUILD_DES3
#endif
#if defined(BUILD_TLS_RSA_WITH_AES_128_CBC_SHA) || \
defined(BUILD_TLS_RSA_WITH_AES_256_CBC_SHA) || \
defined(BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256) || \
defined(BUILD_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256)
#undef BUILD_AES
#define BUILD_AES
#endif
#if defined(BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256) || \
defined(BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256) || \
defined(BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256) || \
defined(BUILD_TLS_PSK_WITH_AES_128_GCM_SHA256) || \
defined(BUILD_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256) || \
defined(BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384) || \
defined(BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384) || \
defined(BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384) || \
defined(BUILD_TLS_PSK_WITH_AES_256_GCM_SHA384) || \
defined(BUILD_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384)
#define BUILD_AESGCM
#endif
#if defined(BUILD_TLS_RSA_WITH_HC_128_SHA) || \
defined(BUILD_TLS_RSA_WITH_HC_128_MD5) || \
defined(BUILD_TLS_RSA_WITH_HC_128_B2B256)
#define BUILD_HC128
#endif
#if defined(BUILD_TLS_RSA_WITH_RABBIT_SHA)
#define BUILD_RABBIT
#endif
#ifdef NO_DES3
#define DES_BLOCK_SIZE 8
#else
#undef BUILD_DES3
#define BUILD_DES3
#endif
#if defined(NO_AES) || defined(NO_AES_DECRYPT)
#define AES_BLOCK_SIZE 16
#undef BUILD_AES
#else
#undef BUILD_AES
#define BUILD_AES
#endif
#ifndef NO_RC4
#undef BUILD_ARC4
#define BUILD_ARC4
#endif
#ifdef HAVE_CHACHA
#define CHACHA20_BLOCK_SIZE 16
#endif
#if defined(WOLFSSL_MAX_STRENGTH) || \
defined(HAVE_AESGCM) || defined(HAVE_AESCCM) || \
(defined(HAVE_CHACHA) && defined(HAVE_POLY1305))
#define HAVE_AEAD
#endif
#if defined(WOLFSSL_MAX_STRENGTH) || \
defined(HAVE_ECC) || !defined(NO_DH)
#define HAVE_PFS
#endif
#if defined(BUILD_SSL_RSA_WITH_IDEA_CBC_SHA)
#define BUILD_IDEA
#endif
/* actual cipher values, 2nd byte */
enum {
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA = 0x16,
TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x39,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x33,
TLS_DH_anon_WITH_AES_128_CBC_SHA = 0x34,
TLS_RSA_WITH_AES_256_CBC_SHA = 0x35,
TLS_RSA_WITH_AES_128_CBC_SHA = 0x2F,
TLS_RSA_WITH_NULL_SHA = 0x02,
TLS_PSK_WITH_AES_256_CBC_SHA = 0x8d,
TLS_PSK_WITH_AES_128_CBC_SHA256 = 0xae,
TLS_PSK_WITH_AES_256_CBC_SHA384 = 0xaf,
TLS_PSK_WITH_AES_128_CBC_SHA = 0x8c,
TLS_PSK_WITH_NULL_SHA256 = 0xb0,
TLS_PSK_WITH_NULL_SHA384 = 0xb1,
TLS_PSK_WITH_NULL_SHA = 0x2c,
SSL_RSA_WITH_RC4_128_SHA = 0x05,
SSL_RSA_WITH_RC4_128_MD5 = 0x04,
SSL_RSA_WITH_3DES_EDE_CBC_SHA = 0x0A,
SSL_RSA_WITH_IDEA_CBC_SHA = 0x07,
/* ECC suites, first byte is 0xC0 (ECC_BYTE) */
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0x14,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0x13,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA = 0x0A,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA = 0x09,
TLS_ECDHE_RSA_WITH_RC4_128_SHA = 0x11,
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA = 0x07,
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA = 0x12,
TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA = 0x08,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 = 0x27,
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 = 0x23,
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 = 0x28,
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 = 0x24,
TLS_ECDHE_ECDSA_WITH_NULL_SHA = 0x06,
TLS_ECDHE_PSK_WITH_NULL_SHA256 = 0x3a,
TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256 = 0x37,
/* static ECDH, first byte is 0xC0 (ECC_BYTE) */
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA = 0x0F,
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA = 0x0E,
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA = 0x05,
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA = 0x04,
TLS_ECDH_RSA_WITH_RC4_128_SHA = 0x0C,
TLS_ECDH_ECDSA_WITH_RC4_128_SHA = 0x02,
TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA = 0x0D,
TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA = 0x03,
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 = 0x29,
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 = 0x25,
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 = 0x2A,
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 = 0x26,
/* wolfSSL extension - eSTREAM */
TLS_RSA_WITH_HC_128_MD5 = 0xFB,
TLS_RSA_WITH_HC_128_SHA = 0xFC,
TLS_RSA_WITH_RABBIT_SHA = 0xFD,
WDM_WITH_NULL_SHA256 = 0xFE, /* wolfSSL DTLS Multicast */
/* wolfSSL extension - Blake2b 256 */
TLS_RSA_WITH_AES_128_CBC_B2B256 = 0xF8,
TLS_RSA_WITH_AES_256_CBC_B2B256 = 0xF9,
TLS_RSA_WITH_HC_128_B2B256 = 0xFA, /* eSTREAM too */
/* wolfSSL extension - NTRU */
TLS_NTRU_RSA_WITH_RC4_128_SHA = 0xe5,
TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA = 0xe6,
TLS_NTRU_RSA_WITH_AES_128_CBC_SHA = 0xe7, /* clashes w/official SHA-256 */
TLS_NTRU_RSA_WITH_AES_256_CBC_SHA = 0xe8,
/* wolfSSL extension - NTRU , Quantum-safe Handshake
first byte is 0xD0 (QSH_BYTE) */
TLS_QSH = 0x01,
/* SHA256 */
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 = 0x6b,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 = 0x67,
TLS_RSA_WITH_AES_256_CBC_SHA256 = 0x3d,
TLS_RSA_WITH_AES_128_CBC_SHA256 = 0x3c,
TLS_RSA_WITH_NULL_SHA256 = 0x3b,
TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 = 0xb2,
TLS_DHE_PSK_WITH_NULL_SHA256 = 0xb4,
/* SHA384 */
TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 = 0xb3,
TLS_DHE_PSK_WITH_NULL_SHA384 = 0xb5,
/* AES-GCM */
TLS_RSA_WITH_AES_128_GCM_SHA256 = 0x9c,
TLS_RSA_WITH_AES_256_GCM_SHA384 = 0x9d,
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 = 0x9e,
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 = 0x9f,
TLS_PSK_WITH_AES_128_GCM_SHA256 = 0xa8,
TLS_PSK_WITH_AES_256_GCM_SHA384 = 0xa9,
TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 = 0xaa,
TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 = 0xab,
/* ECC AES-GCM, first byte is 0xC0 (ECC_BYTE) */
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0x2b,
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 = 0x2c,
TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 = 0x2d,
TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 = 0x2e,
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0x2f,
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 = 0x30,
TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 = 0x31,
TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 = 0x32,
/* AES-CCM, first byte is 0xC0 but isn't ECC,
* also, in some of the other AES-CCM suites
* there will be second byte number conflicts
* with non-ECC AES-GCM */
TLS_RSA_WITH_AES_128_CCM_8 = 0xa0,
TLS_RSA_WITH_AES_256_CCM_8 = 0xa1,
TLS_ECDHE_ECDSA_WITH_AES_128_CCM = 0xac,
TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 = 0xae,
TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 = 0xaf,
TLS_PSK_WITH_AES_128_CCM = 0xa4,
TLS_PSK_WITH_AES_256_CCM = 0xa5,
TLS_PSK_WITH_AES_128_CCM_8 = 0xa8,
TLS_PSK_WITH_AES_256_CCM_8 = 0xa9,
TLS_DHE_PSK_WITH_AES_128_CCM = 0xa6,
TLS_DHE_PSK_WITH_AES_256_CCM = 0xa7,
/* Camellia */
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA = 0x41,
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA = 0x84,
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 = 0xba,
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 = 0xc0,
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA = 0x45,
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA = 0x88,
TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = 0xbe,
TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 = 0xc4,
/* chacha20-poly1305 suites first byte is 0xCC (CHACHA_BYTE) */
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 = 0xa8,
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 = 0xa9,
TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256 = 0xaa,
TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 = 0xac,
TLS_PSK_WITH_CHACHA20_POLY1305_SHA256 = 0xab,
TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256 = 0xad,
/* chacha20-poly1305 earlier version of nonce and padding (CHACHA_BYTE) */
TLS_ECDHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 = 0x13,
TLS_ECDHE_ECDSA_WITH_CHACHA20_OLD_POLY1305_SHA256 = 0x14,
TLS_DHE_RSA_WITH_CHACHA20_OLD_POLY1305_SHA256 = 0x15,
/* TLS v1.3 cipher suites */
TLS_AES_128_GCM_SHA256 = 0x01,
TLS_AES_256_GCM_SHA384 = 0x02,
TLS_CHACHA20_POLY1305_SHA256 = 0x03,
TLS_AES_128_CCM_SHA256 = 0x04,
TLS_AES_128_CCM_8_SHA256 = 0x05,
/* Renegotiation Indication Extension Special Suite */
TLS_EMPTY_RENEGOTIATION_INFO_SCSV = 0xff
};
#ifndef WOLFSSL_SESSION_TIMEOUT
#define WOLFSSL_SESSION_TIMEOUT 500
/* default session resumption cache timeout in seconds */
#endif
#ifndef WOLFSSL_DTLS_WINDOW_WORDS
#define WOLFSSL_DTLS_WINDOW_WORDS 2
#endif /* WOLFSSL_DTLS_WINDOW_WORDS */
#define DTLS_WORD_BITS (sizeof(word32) * CHAR_BIT)
#define DTLS_SEQ_BITS (WOLFSSL_DTLS_WINDOW_WORDS * DTLS_WORD_BITS)
#define DTLS_SEQ_SZ (sizeof(word32) * WOLFSSL_DTLS_WINDOW_WORDS)
#ifndef WOLFSSL_MULTICAST
#define WOLFSSL_DTLS_PEERSEQ_SZ 1
#else
#ifndef WOLFSSL_MULTICAST_PEERS
/* max allowed multicast group peers */
#define WOLFSSL_MULTICAST_PEERS 100
#endif
#define WOLFSSL_DTLS_PEERSEQ_SZ WOLFSSL_MULTICAST_PEERS
#endif /* WOLFSSL_MULTICAST */
#ifndef WOLFSSL_MAX_MTU
#define WOLFSSL_MAX_MTU 1500
#endif /* WOLFSSL_MAX_MTU */
enum Misc {
ECC_BYTE = 0xC0, /* ECC first cipher suite byte */
QSH_BYTE = 0xD0, /* Quantum-safe Handshake cipher suite */
CHACHA_BYTE = 0xCC, /* ChaCha first cipher suite */
TLS13_BYTE = 0x13, /* TLS v1.3 first byte of cipher suite */
SEND_CERT = 1,
SEND_BLANK_CERT = 2,
DTLS_MAJOR = 0xfe, /* DTLS major version number */
DTLS_MINOR = 0xff, /* DTLS minor version number */
DTLSv1_2_MINOR = 0xfd, /* DTLS minor version number */
SSLv3_MAJOR = 3, /* SSLv3 and TLSv1+ major version number */
SSLv3_MINOR = 0, /* TLSv1 minor version number */
TLSv1_MINOR = 1, /* TLSv1 minor version number */
TLSv1_1_MINOR = 2, /* TLSv1_1 minor version number */
TLSv1_2_MINOR = 3, /* TLSv1_2 minor version number */
TLSv1_3_MINOR = 4, /* TLSv1_3 minor version number */
TLS_DRAFT_MAJOR = 0x7f, /* Draft TLS major version number */
#ifdef WOLFSSL_TLS13_DRAFT_18
TLS_DRAFT_MINOR = 0x12, /* Minor version number of TLS draft */
#else
TLS_DRAFT_MINOR = 0x15, /* Minor version number of TLS draft */
#endif
OLD_HELLO_ID = 0x01, /* SSLv2 Client Hello Indicator */
INVALID_BYTE = 0xff, /* Used to initialize cipher specs values */
NO_COMPRESSION = 0,
ZLIB_COMPRESSION = 221, /* wolfSSL zlib compression */
HELLO_EXT_SIG_ALGO = 13, /* ID for the sig_algo hello extension */
HELLO_EXT_EXTMS = 0x0017, /* ID for the extended master secret ext */
SECRET_LEN = WOLFSSL_MAX_MASTER_KEY_LENGTH,
/* pre RSA and all master */
#if defined(WOLFSSL_MYSQL_COMPATIBLE)
ENCRYPT_LEN = 1024, /* allow larger static buffer with mysql */
#else
ENCRYPT_LEN = 512, /* allow 4096 bit static buffer */
#endif
SIZEOF_SENDER = 4, /* clnt or srvr */
FINISHED_SZ = 36, /* WC_MD5_DIGEST_SIZE + WC_SHA_DIGEST_SIZE */
MAX_RECORD_SIZE = 16384, /* 2^14, max size by standard */
MAX_MSG_EXTRA = 38 + MAX_DIGEST_SIZE,
/* max added to msg, mac + pad from */
/* RECORD_HEADER_SZ + BLOCK_SZ (pad) + Max
digest sz + BLOC_SZ (iv) + pad byte (1) */
MAX_COMP_EXTRA = 1024, /* max compression extra */
MAX_MTU = WOLFSSL_MAX_MTU, /* max expected MTU */
MAX_UDP_SIZE = 8192 - 100, /* was MAX_MTU - 100 */
MAX_DH_SZ = 1036, /* 4096 p, pub, g + 2 byte size for each */
MAX_STR_VERSION = 8, /* string rep of protocol version */
PAD_MD5 = 48, /* pad length for finished */
PAD_SHA = 40, /* pad length for finished */
MAX_PAD_SIZE = 256, /* maximum length of padding */
COMPRESS_DUMMY_SIZE = 64, /* compression dummy round size */
COMPRESS_CONSTANT = 13, /* compression calc constant */
COMPRESS_UPPER = 55, /* compression calc numerator */
COMPRESS_LOWER = 64, /* compression calc denominator */
PEM_LINE_LEN = 80, /* PEM line max + fudge */
LENGTH_SZ = 2, /* length field for HMAC, data only */
VERSION_SZ = 2, /* length of proctocol version */
SEQ_SZ = 8, /* 64 bit sequence number */
ALERT_SIZE = 2, /* level + description */
VERIFY_HEADER = 2, /* always use 2 bytes */
EXTS_SZ = 2, /* always use 2 bytes */
EXT_ID_SZ = 2, /* always use 2 bytes */
MAX_DH_SIZE = 513, /* 4096 bit plus possible leading 0 */
NAMED_DH_MASK = 0x100, /* Named group mask for DH parameters */
SESSION_HINT_SZ = 4, /* session timeout hint */
SESSION_ADD_SZ = 4, /* session age add */
TICKET_NONCE_LEN_SZ = 1, /* Ticket nonce length size */
DEF_TICKET_NONCE_SZ = 1, /* Default ticket nonce size */
MAX_TICKET_NONCE_SZ = 4, /* maximum ticket nonce size */
MAX_LIFETIME = 604800, /* maximum ticket lifetime */
MAX_EARLY_DATA_SZ = 4096, /* maximum early data size */
RAN_LEN = 32, /* random length */
SEED_LEN = RAN_LEN * 2, /* tls prf seed length */
ID_LEN = 32, /* session id length */
COOKIE_SECRET_SZ = 14, /* dtls cookie secret size */
MAX_COOKIE_LEN = 32, /* max dtls cookie size */
COOKIE_SZ = 20, /* use a 20 byte cookie */
SUITE_LEN = 2, /* cipher suite sz length */
ENUM_LEN = 1, /* always a byte */
OPAQUE8_LEN = 1, /* 1 byte */
OPAQUE16_LEN = 2, /* 2 bytes */
OPAQUE24_LEN = 3, /* 3 bytes */
OPAQUE32_LEN = 4, /* 4 bytes */
OPAQUE64_LEN = 8, /* 8 bytes */
COMP_LEN = 1, /* compression length */
CURVE_LEN = 2, /* ecc named curve length */
KE_GROUP_LEN = 2, /* key exchange group length */
SERVER_ID_LEN = 20, /* server session id length */
HANDSHAKE_HEADER_SZ = 4, /* type + length(3) */
RECORD_HEADER_SZ = 5, /* type + version + len(2) */
CERT_HEADER_SZ = 3, /* always 3 bytes */
REQ_HEADER_SZ = 2, /* cert request header sz */
HINT_LEN_SZ = 2, /* length of hint size field */
TRUNCATED_HMAC_SZ = 10, /* length of hmac w/ truncated hmac extension */
HELLO_EXT_SZ = 4, /* base length of a hello extension */
HELLO_EXT_TYPE_SZ = 2, /* length of a hello extension type */
HELLO_EXT_SZ_SZ = 2, /* length of a hello extension size */
HELLO_EXT_SIGALGO_SZ = 2, /* length of number of items in sigalgo list */
DTLS_HANDSHAKE_HEADER_SZ = 12, /* normal + seq(2) + offset(3) + length(3) */
DTLS_RECORD_HEADER_SZ = 13, /* normal + epoch(2) + seq_num(6) */
DTLS_HANDSHAKE_EXTRA = 8, /* diff from normal */
DTLS_RECORD_EXTRA = 8, /* diff from normal */
DTLS_HANDSHAKE_SEQ_SZ = 2, /* handshake header sequence number */
DTLS_HANDSHAKE_FRAG_SZ = 3, /* fragment offset and length are 24 bit */
DTLS_POOL_SZ = 255,/* allowed number of list items in TX pool */
DTLS_EXPORT_PRO = 165,/* wolfSSL protocol for serialized session */
DTLS_EXPORT_VERSION = 4, /* wolfSSL version for serialized session */
DTLS_EXPORT_OPT_SZ = 58, /* amount of bytes used from Options */
DTLS_EXPORT_VERSION_3 = 3, /* wolfSSL version before TLS 1.3 addition */
DTLS_EXPORT_OPT_SZ_3 = 57, /* amount of bytes used from Options */
DTLS_EXPORT_KEY_SZ = 325 + (DTLS_SEQ_SZ * 2),
/* max amount of bytes used from Keys */
DTLS_EXPORT_MIN_KEY_SZ = 78 + (DTLS_SEQ_SZ * 2),
/* min amount of bytes used from Keys */
DTLS_EXPORT_SPC_SZ = 16, /* amount of bytes used from CipherSpecs */
DTLS_EXPORT_LEN = 2, /* 2 bytes for length and protocol */
DTLS_EXPORT_IP = 46, /* max ip size IPv4 mapped IPv6 */
MAX_EXPORT_BUFFER = 514, /* max size of buffer for exporting */
FINISHED_LABEL_SZ = 15, /* TLS finished label size */
TLS_FINISHED_SZ = 12, /* TLS has a shorter size */
EXT_MASTER_LABEL_SZ = 22, /* TLS extended master secret label sz */
MASTER_LABEL_SZ = 13, /* TLS master secret label sz */
KEY_LABEL_SZ = 13, /* TLS key block expansion sz */
MAX_PRF_HALF = 256, /* Maximum half secret len */
MAX_PRF_LABSEED = 128, /* Maximum label + seed len */
MAX_PRF_DIG = 224, /* Maximum digest len */
PROTOCOL_LABEL_SZ = 9, /* Length of the protocol label */
MAX_LABEL_SZ = 34, /* Maximum length of a label */
MAX_HKDF_LABEL_SZ = OPAQUE16_LEN +
OPAQUE8_LEN + PROTOCOL_LABEL_SZ + MAX_LABEL_SZ +
OPAQUE8_LEN + MAX_DIGEST_SIZE,
MAX_REQUEST_SZ = 256, /* Maximum cert req len (no auth yet */
SESSION_FLUSH_COUNT = 256, /* Flush session cache unless user turns off */
RC4_KEY_SIZE = 16, /* always 128bit */
DES_KEY_SIZE = 8, /* des */
DES3_KEY_SIZE = 24, /* 3 des ede */
DES_IV_SIZE = DES_BLOCK_SIZE,
AES_256_KEY_SIZE = 32, /* for 256 bit */
AES_192_KEY_SIZE = 24, /* for 192 bit */
AES_IV_SIZE = 16, /* always block size */
AES_128_KEY_SIZE = 16, /* for 128 bit */
AEAD_SEQ_OFFSET = 4, /* Auth Data: Sequence number */
AEAD_TYPE_OFFSET = 8, /* Auth Data: Type */
AEAD_VMAJ_OFFSET = 9, /* Auth Data: Major Version */
AEAD_VMIN_OFFSET = 10, /* Auth Data: Minor Version */
AEAD_LEN_OFFSET = 11, /* Auth Data: Length */
AEAD_AUTH_DATA_SZ = 13, /* Size of the data to authenticate */
AEAD_NONCE_SZ = 12,
AESGCM_IMP_IV_SZ = 4, /* Size of GCM/CCM AEAD implicit IV */
AESGCM_EXP_IV_SZ = 8, /* Size of GCM/CCM AEAD explicit IV */
AESGCM_NONCE_SZ = AESGCM_EXP_IV_SZ + AESGCM_IMP_IV_SZ,
CHACHA20_IMP_IV_SZ = 12, /* Size of ChaCha20 AEAD implicit IV */
CHACHA20_NONCE_SZ = 12, /* Size of ChacCha20 nonce */
CHACHA20_OLD_OFFSET = 4, /* Offset for seq # in old poly1305 */
/* For any new implicit/explicit IV size adjust AEAD_MAX_***_SZ */
AES_GCM_AUTH_SZ = 16, /* AES-GCM Auth Tag length */
AES_CCM_16_AUTH_SZ = 16, /* AES-CCM-16 Auth Tag length */
AES_CCM_8_AUTH_SZ = 8, /* AES-CCM-8 Auth Tag Length */
AESCCM_NONCE_SZ = 12,
CAMELLIA_128_KEY_SIZE = 16, /* for 128 bit */
CAMELLIA_192_KEY_SIZE = 24, /* for 192 bit */
CAMELLIA_256_KEY_SIZE = 32, /* for 256 bit */
CAMELLIA_IV_SIZE = 16, /* always block size */
CHACHA20_256_KEY_SIZE = 32, /* for 256 bit */
CHACHA20_128_KEY_SIZE = 16, /* for 128 bit */
CHACHA20_IV_SIZE = 12, /* 96 bits for iv */
POLY1305_AUTH_SZ = 16, /* 128 bits */
HC_128_KEY_SIZE = 16, /* 128 bits */
HC_128_IV_SIZE = 16, /* also 128 bits */
RABBIT_KEY_SIZE = 16, /* 128 bits */
RABBIT_IV_SIZE = 8, /* 64 bits for iv */
EVP_SALT_SIZE = 8, /* evp salt size 64 bits */
ECDHE_SIZE = 32, /* ECHDE server size defaults to 256 bit */
MAX_EXPORT_ECC_SZ = 256, /* Export ANS X9.62 max future size */
MAX_CURVE_NAME_SZ = 16, /* Maximum size of curve name string */
NEW_SA_MAJOR = 8, /* Most signicant byte used with new sig algos */
ED25519_SA_MAJOR = 8, /* Most significant byte for ED25519 */
ED25519_SA_MINOR = 7, /* Least significant byte for ED25519 */
ED448_SA_MAJOR = 8, /* Most significant byte for ED448 */
ED448_SA_MINOR = 8, /* Least significant byte for ED448 */
MIN_RSA_SHA512_PSS_BITS = 512 * 2 + 8 * 8, /* Min key size */
MIN_RSA_SHA384_PSS_BITS = 384 * 2 + 8 * 8, /* Min key size */
MAX_CERT_VERIFY_SZ = 1024, /* max */
CLIENT_HELLO_FIRST = 35, /* Protocol + RAN_LEN + sizeof(id_len) */
MAX_SUITE_NAME = 48, /* maximum length of cipher suite string */
DTLS_TIMEOUT_INIT = 1, /* default timeout init for DTLS receive */
DTLS_TIMEOUT_MAX = 64, /* default max timeout for DTLS receive */
DTLS_TIMEOUT_MULTIPLIER = 2, /* default timeout multiplier for DTLS recv */
MAX_PSK_ID_LEN = 128, /* max psk identity/hint supported */
NULL_TERM_LEN = 1, /* length of null '\0' termination character */
MAX_PSK_KEY_LEN = 64, /* max psk key supported */
MIN_PSK_ID_LEN = 6, /* min length of identities */
MIN_PSK_BINDERS_LEN= 33, /* min length of binders */
MAX_TICKET_AGE_SECS= 10, /* maximum ticket age in seconds */
MAX_WOLFSSL_FILE_SIZE = 1024 * 1024 * 4, /* 4 mb file size alloc limit */
#if defined(HAVE_EX_DATA) || defined(FORTRESS)
MAX_EX_DATA = 5, /* allow for five items of ex_data */
#endif
MAX_X509_SIZE = 2048, /* max static x509 buffer size */
CERT_MIN_SIZE = 256, /* min PEM cert size with header/footer */
FILE_BUFFER_SIZE = 1024, /* default static file buffer size for input,
will use dynamic buffer if not big enough */
MAX_NTRU_PUB_KEY_SZ = 1027, /* NTRU max for now */
MAX_NTRU_ENCRYPT_SZ = 1027, /* NTRU max for now */
MAX_NTRU_BITS = 256, /* max symmetric bit strength */
NO_SNIFF = 0, /* not sniffing */
SNIFF = 1, /* currently sniffing */
HASH_SIG_SIZE = 2, /* default SHA1 RSA */
NO_COPY = 0, /* should we copy static buffer for write */
COPY = 1, /* should we copy static buffer for write */
INVALID_PEER_ID = 0xFFFF, /* Initialize value for peer ID. */
PREV_ORDER = -1, /* Sequence number is in previous epoch. */
PEER_ORDER = 1, /* Peer sequence number for verify. */
CUR_ORDER = 0 /* Current sequence number. */
};
/* Set max implicit IV size for AEAD cipher suites */
#define AEAD_MAX_IMP_SZ 12
/* Set max explicit IV size for AEAD cipher suites */
#define AEAD_MAX_EXP_SZ 8
#ifndef WOLFSSL_MAX_SUITE_SZ
#define WOLFSSL_MAX_SUITE_SZ 300
/* 150 suites for now! */
#endif
/* number of items in the signature algo list */
#ifndef WOLFSSL_MAX_SIGALGO
#define WOLFSSL_MAX_SIGALGO 32
#endif
/* set minimum ECC key size allowed */
#ifndef WOLFSSL_MIN_ECC_BITS
#ifdef WOLFSSL_MAX_STRENGTH
#define WOLFSSL_MIN_ECC_BITS 256
#else
#define WOLFSSL_MIN_ECC_BITS 224
#endif
#endif /* WOLFSSL_MIN_ECC_BITS */
#if (WOLFSSL_MIN_ECC_BITS % 8)
/* Some ECC keys are not divisable by 8 such as prime239v1 or sect131r1.
In these cases round down to the nearest value divisable by 8. The
restriction of being divisable by 8 is in place to match wc_ecc_size
function from wolfSSL.
*/
#error ECC minimum bit size must be a multiple of 8
#endif
#define MIN_ECCKEY_SZ (WOLFSSL_MIN_ECC_BITS / 8)
/* set minimum RSA key size allowed */
#ifndef WOLFSSL_MIN_RSA_BITS
#ifdef WOLFSSL_MAX_STRENGTH
#define WOLFSSL_MIN_RSA_BITS 2048
#else
#define WOLFSSL_MIN_RSA_BITS 1024
#endif
#endif /* WOLFSSL_MIN_RSA_BITS */
#if (WOLFSSL_MIN_RSA_BITS % 8)
/* This is to account for the example case of a min size of 2050 bits but
still allows 2049 bit key. So we need the measurment to be in bytes. */
#error RSA minimum bit size must be a multiple of 8
#endif
#define MIN_RSAKEY_SZ (WOLFSSL_MIN_RSA_BITS / 8)
/* set minimum DH key size allowed */
#ifndef WOLFSSL_MIN_DHKEY_BITS
#ifdef WOLFSSL_MAX_STRENGTH
#define WOLFSSL_MIN_DHKEY_BITS 2048
#else
#define WOLFSSL_MIN_DHKEY_BITS 1024
#endif
#endif
#if (WOLFSSL_MIN_DHKEY_BITS % 8)
#error DH minimum bit size must be multiple of 8
#endif
#if (WOLFSSL_MIN_DHKEY_BITS > 16000)
#error DH minimum bit size must not be greater than 16000
#endif
#define MIN_DHKEY_SZ (WOLFSSL_MIN_DHKEY_BITS / 8)
#ifdef SESSION_INDEX
/* Shift values for making a session index */
#define SESSIDX_ROW_SHIFT 4
#define SESSIDX_IDX_MASK 0x0F
#endif
/* max cert chain peer depth */
#ifndef MAX_CHAIN_DEPTH
#define MAX_CHAIN_DEPTH 9
#endif
/* max size of a certificate message payload */
/* assumes MAX_CHAIN_DEPTH number of certificates at 2kb per certificate */
#ifndef MAX_CERTIFICATE_SZ
#define MAX_CERTIFICATE_SZ \
CERT_HEADER_SZ + \
(MAX_X509_SIZE + CERT_HEADER_SZ) * MAX_CHAIN_DEPTH
#endif
/* max size of a handshake message, currently set to the certificate */
#ifndef MAX_HANDSHAKE_SZ
#define MAX_HANDSHAKE_SZ MAX_CERTIFICATE_SZ
#endif
#ifndef SESSION_TICKET_LEN
#define SESSION_TICKET_LEN 256
#endif
#ifndef SESSION_TICKET_HINT_DEFAULT
#define SESSION_TICKET_HINT_DEFAULT 300
#endif
/* don't use extra 3/4k stack space unless need to */
#ifdef HAVE_NTRU
#define MAX_ENCRYPT_SZ MAX_NTRU_ENCRYPT_SZ
#else
#define MAX_ENCRYPT_SZ ENCRYPT_LEN
#endif
/* states */
enum states {
NULL_STATE = 0,
SERVER_HELLOVERIFYREQUEST_COMPLETE,
SERVER_HELLO_COMPLETE,
SERVER_ENCRYPTED_EXTENSIONS_COMPLETE,
SERVER_CERT_COMPLETE,
SERVER_KEYEXCHANGE_COMPLETE,
SERVER_HELLODONE_COMPLETE,
SERVER_FINISHED_COMPLETE,
SERVER_HELLO_RETRY_REQUEST,
CLIENT_HELLO_COMPLETE,
CLIENT_KEYEXCHANGE_COMPLETE,
CLIENT_FINISHED_COMPLETE,
HANDSHAKE_DONE
};
#if defined(__GNUC__)
#define WOLFSSL_PACK __attribute__ ((packed))
#else
#define WOLFSSL_PACK
#endif
/* SSL Version */
typedef struct ProtocolVersion {
byte major;
byte minor;
} WOLFSSL_PACK ProtocolVersion;
WOLFSSL_LOCAL ProtocolVersion MakeSSLv3(void);
WOLFSSL_LOCAL ProtocolVersion MakeTLSv1(void);
WOLFSSL_LOCAL ProtocolVersion MakeTLSv1_1(void);
WOLFSSL_LOCAL ProtocolVersion MakeTLSv1_2(void);
WOLFSSL_LOCAL ProtocolVersion MakeTLSv1_3(void);
#ifdef WOLFSSL_DTLS
WOLFSSL_LOCAL ProtocolVersion MakeDTLSv1(void);
WOLFSSL_LOCAL ProtocolVersion MakeDTLSv1_2(void);
#ifdef WOLFSSL_SESSION_EXPORT
WOLFSSL_LOCAL int wolfSSL_dtls_import_internal(WOLFSSL* ssl, byte* buf,
word32 sz);
WOLFSSL_LOCAL int wolfSSL_dtls_export_internal(WOLFSSL* ssl, byte* buf,
word32 sz);
WOLFSSL_LOCAL int wolfSSL_send_session(WOLFSSL* ssl);
#endif
#endif
enum BIO_TYPE {
BIO_BUFFER = 1,
BIO_SOCKET = 2,
BIO_SSL = 3,
BIO_MEMORY = 4,
BIO_BIO = 5,
BIO_FILE = 6
};
/* wolfSSL BIO_METHOD type */
struct WOLFSSL_BIO_METHOD {
byte type; /* method type */
};
/* wolfSSL BIO type */
struct WOLFSSL_BIO {
WOLFSSL* ssl; /* possible associated ssl */
#ifndef NO_FILESYSTEM
XFILE file;
#endif
WOLFSSL_BIO* prev; /* previous in chain */
WOLFSSL_BIO* next; /* next in chain */
WOLFSSL_BIO* pair; /* BIO paired with */
void* heap; /* user heap hint */
byte* mem; /* memory buffer */
int wrSz; /* write buffer size (mem) */
int wrIdx; /* current index for write buffer */
int rdIdx; /* current read index */
int readRq; /* read request */
int memLen; /* memory buffer length */
int fd; /* possible file descriptor */
int eof; /* eof flag */
byte type; /* method type */
byte close; /* close flag */
};
/* wolfSSL method type */
struct WOLFSSL_METHOD {
ProtocolVersion version;
byte side; /* connection side, server or client */
byte downgrade; /* whether to downgrade version, default no */
};
/* wolfSSL buffer type - internal uses "buffer" type */
typedef WOLFSSL_BUFFER_INFO buffer;
/* defaults to client */
WOLFSSL_LOCAL void InitSSL_Method(WOLFSSL_METHOD*, ProtocolVersion);
/* for sniffer */
WOLFSSL_LOCAL int DoFinished(WOLFSSL* ssl, const byte* input, word32* inOutIdx,
word32 size, word32 totalSz, int sniff);
WOLFSSL_LOCAL int DoApplicationData(WOLFSSL* ssl, byte* input, word32* inOutIdx);
/* TLS v1.3 needs these */
WOLFSSL_LOCAL int DoClientHello(WOLFSSL* ssl, const byte* input, word32*,
word32);
#ifdef WOLFSSL_TLS13
WOLFSSL_LOCAL int DoTls13ClientHello(WOLFSSL* ssl, const byte* input,
word32* inOutIdx, word32 helloSz);
#endif
WOLFSSL_LOCAL int DoServerHello(WOLFSSL* ssl, const byte* input, word32*,
word32);
WOLFSSL_LOCAL int CheckVersion(WOLFSSL *ssl, ProtocolVersion pv);
WOLFSSL_LOCAL void PickHashSigAlgo(WOLFSSL* ssl, const byte* hashSigAlgo,
word32 hashSigAlgoSz);
WOLFSSL_LOCAL int DecodePrivateKey(WOLFSSL *ssl, word16* length);
WOLFSSL_LOCAL void FreeKeyExchange(WOLFSSL* ssl);
WOLFSSL_LOCAL int ProcessPeerCerts(WOLFSSL* ssl, byte* input, word32* inOutIdx, word32 size);
WOLFSSL_LOCAL int MatchDomainName(const char* pattern, int len, const char* str);
#ifndef NO_CERTS
WOLFSSL_LOCAL int CheckAltNames(DecodedCert* dCert, char* domain);
#endif
WOLFSSL_LOCAL int CreateTicket(WOLFSSL* ssl);
WOLFSSL_LOCAL int HashOutputRaw(WOLFSSL* ssl, const byte* output, int sz);
WOLFSSL_LOCAL int HashOutput(WOLFSSL* ssl, const byte* output, int sz,
int ivSz);
WOLFSSL_LOCAL int HashInput(WOLFSSL* ssl, const byte* input, int sz);
#if defined(HAVE_STUNNEL) || defined(WOLFSSL_NGINX) || defined (WOLFSSL_HAPROXY)
WOLFSSL_LOCAL int SNI_Callback(WOLFSSL* ssl);
#endif
#ifdef WOLFSSL_TLS13
WOLFSSL_LOCAL int DecryptTls13(WOLFSSL* ssl, byte* output, const byte* input,
word16 sz);
WOLFSSL_LOCAL int DoTls13HandShakeMsgType(WOLFSSL* ssl, byte* input,
word32* inOutIdx, byte type,
word32 size, word32 totalSz);
WOLFSSL_LOCAL int DoTls13HandShakeMsg(WOLFSSL* ssl, byte* input,
word32* inOutIdx, word32 totalSz);
WOLFSSL_LOCAL int DoTls13ServerHello(WOLFSSL* ssl, const byte* input,
word32* inOutIdx, word32 helloSz);
#endif
#ifndef NO_CERTS
/* wolfSSL DER buffer */
typedef struct DerBuffer {
byte* buffer;
void* heap;
word32 length;
int type; /* enum CertType */
int dynType; /* DYNAMIC_TYPE_* */
} DerBuffer;
#endif /* !NO_CERTS */
enum {
FORCED_FREE = 1,
NO_FORCED_FREE = 0
};
/* only use compression extra if using compression */
#ifdef HAVE_LIBZ
#define COMP_EXTRA MAX_COMP_EXTRA
#else
#define COMP_EXTRA 0
#endif
/* only the sniffer needs space in the buffer for extra MTU record(s) */
#ifdef WOLFSSL_SNIFFER
#define MTU_EXTRA MAX_MTU * 3
#else
#define MTU_EXTRA 0
#endif
/* embedded callbacks require large static buffers, make sure on */
#ifdef WOLFSSL_CALLBACKS
#undef LARGE_STATIC_BUFFERS
#define LARGE_STATIC_BUFFERS
#endif
/* give user option to use 16K static buffers */
#if defined(LARGE_STATIC_BUFFERS)
#define RECORD_SIZE MAX_RECORD_SIZE
#else
#ifdef WOLFSSL_DTLS
#define RECORD_SIZE MAX_MTU
#else
#define RECORD_SIZE 128
#endif
#endif
/* user option to turn off 16K output option */
/* if using small static buffers (default) and SSL_write tries to write data
larger than the record we have, dynamically get it, unless user says only
write in static buffer chunks */
#ifndef STATIC_CHUNKS_ONLY
#define OUTPUT_RECORD_SIZE MAX_RECORD_SIZE
#else
#define OUTPUT_RECORD_SIZE RECORD_SIZE
#endif
/* wolfSSL input buffer
RFC 2246:
length
The length (in bytes) of the following TLSPlaintext.fragment.
The length should not exceed 2^14.
*/
#if defined(LARGE_STATIC_BUFFERS)
#define STATIC_BUFFER_LEN RECORD_HEADER_SZ + RECORD_SIZE + COMP_EXTRA + \
MTU_EXTRA + MAX_MSG_EXTRA
#else
/* don't fragment memory from the record header */
#define STATIC_BUFFER_LEN RECORD_HEADER_SZ
#endif
typedef struct {
ALIGN16 byte staticBuffer[STATIC_BUFFER_LEN];
byte* buffer; /* place holder for static or dynamic buffer */
word32 length; /* total buffer length used */
word32 idx; /* idx to part of length already consumed */
word32 bufferSize; /* current buffer size */
byte dynamicFlag; /* dynamic memory currently in use */
byte offset; /* alignment offset attempt */
} bufferStatic;
/* Cipher Suites holder */
typedef struct Suites {
word16 suiteSz; /* suite length in bytes */
word16 hashSigAlgoSz; /* SigAlgo extension length in bytes */
byte suites[WOLFSSL_MAX_SUITE_SZ];
byte hashSigAlgo[WOLFSSL_MAX_SIGALGO]; /* sig/algo to offer */
byte setSuites; /* user set suites from default */
byte hashAlgo; /* selected hash algorithm */
byte sigAlgo; /* selected sig algorithm */
} Suites;
WOLFSSL_LOCAL void InitSuitesHashSigAlgo(Suites* suites, int haveECDSAsig,
int haveRSAsig, int haveAnon,
int tls1_2, int keySz);
WOLFSSL_LOCAL void InitSuites(Suites*, ProtocolVersion, int, word16, word16,
word16, word16, word16, word16, word16, int);
WOLFSSL_LOCAL int MatchSuite(WOLFSSL* ssl, Suites* peerSuites);
WOLFSSL_LOCAL int SetCipherList(WOLFSSL_CTX*, Suites*, const char* list);
#ifndef PSK_TYPES_DEFINED
typedef unsigned int (*wc_psk_client_callback)(WOLFSSL*, const char*, char*,
unsigned int, unsigned char*, unsigned int);
typedef unsigned int (*wc_psk_server_callback)(WOLFSSL*, const char*,
unsigned char*, unsigned int);
#endif /* PSK_TYPES_DEFINED */
#ifdef WOLFSSL_DTLS
typedef int (*wc_dtls_export)(WOLFSSL* ssl,
unsigned char* exportBuffer, unsigned int sz, void* userCtx);
#endif
/* wolfSSL Cipher type just points back to SSL */
struct WOLFSSL_CIPHER {
WOLFSSL* ssl;
};
typedef struct OcspEntry OcspEntry;
#ifdef NO_SHA
#define OCSP_DIGEST_SIZE WC_SHA256_DIGEST_SIZE
#else
#define OCSP_DIGEST_SIZE WC_SHA_DIGEST_SIZE
#endif
#ifdef NO_ASN
/* no_asn won't have */
typedef struct CertStatus CertStatus;
#endif
struct OcspEntry {
OcspEntry* next; /* next entry */
byte issuerHash[OCSP_DIGEST_SIZE]; /* issuer hash */
byte issuerKeyHash[OCSP_DIGEST_SIZE]; /* issuer public key hash */
CertStatus* status; /* OCSP response list */
int totalStatus; /* number on list */
};
#ifndef HAVE_OCSP
typedef struct WOLFSSL_OCSP WOLFSSL_OCSP;
#endif
/* wolfSSL OCSP controller */
struct WOLFSSL_OCSP {
WOLFSSL_CERT_MANAGER* cm; /* pointer back to cert manager */
OcspEntry* ocspList; /* OCSP response list */
wolfSSL_Mutex ocspLock; /* OCSP list lock */
#if defined(WOLFSSL_NGINX) || defined (WOLFSSL_HAPROXY)
int(*statusCb)(WOLFSSL*, void*);
#endif
};
#ifndef MAX_DATE_SIZE
#define MAX_DATE_SIZE 32
#endif
typedef struct CRL_Entry CRL_Entry;
#ifdef NO_SHA
#define CRL_DIGEST_SIZE WC_SHA256_DIGEST_SIZE
#else
#define CRL_DIGEST_SIZE WC_SHA_DIGEST_SIZE
#endif
#ifdef NO_ASN
typedef struct RevokedCert RevokedCert;
#endif
/* Complete CRL */
struct CRL_Entry {
CRL_Entry* next; /* next entry */
byte issuerHash[CRL_DIGEST_SIZE]; /* issuer hash */
/* byte crlHash[CRL_DIGEST_SIZE]; raw crl data hash */
/* restore the hash here if needed for optimized comparisons */
byte lastDate[MAX_DATE_SIZE]; /* last date updated */
byte nextDate[MAX_DATE_SIZE]; /* next update date */
byte lastDateFormat; /* last date format */
byte nextDateFormat; /* next date format */
RevokedCert* certs; /* revoked cert list */
int totalCerts; /* number on list */
int verified;
byte* toBeSigned;
word32 tbsSz;
byte* signature;
word32 signatureSz;
word32 signatureOID;
#if !defined(NO_SKID) && defined(CRL_SKID_READY)
byte extAuthKeyIdSet;
byte extAuthKeyId[KEYID_SIZE];
#endif
};
typedef struct CRL_Monitor CRL_Monitor;
/* CRL directory monitor */
struct CRL_Monitor {
char* path; /* full dir path, if valid pointer we're using */
int type; /* PEM or ASN1 type */
};
#if defined(HAVE_CRL) && defined(NO_FILESYSTEM)
#undef HAVE_CRL_MONITOR
#endif
/* wolfSSL CRL controller */
struct WOLFSSL_CRL {
WOLFSSL_CERT_MANAGER* cm; /* pointer back to cert manager */
CRL_Entry* crlList; /* our CRL list */
#ifdef HAVE_CRL_IO
CbCrlIO crlIOCb;
#endif
wolfSSL_Mutex crlLock; /* CRL list lock */
CRL_Monitor monitors[2]; /* PEM and DER possible */
#ifdef HAVE_CRL_MONITOR
pthread_cond_t cond; /* condition to signal setup */
pthread_t tid; /* monitoring thread */
int mfd; /* monitor fd, -1 if no init yet */
int setup; /* thread is setup predicate */
#endif
void* heap; /* heap hint for dynamic memory */
};
#ifdef NO_ASN
typedef struct Signer Signer;
#ifdef WOLFSSL_TRUST_PEER_CERT
typedef struct TrustedPeerCert TrustedPeerCert;
#endif
#endif
#ifndef CA_TABLE_SIZE
#define CA_TABLE_SIZE 11
#endif
#ifdef WOLFSSL_TRUST_PEER_CERT
#define TP_TABLE_SIZE 11
#endif
/* wolfSSL Certificate Manager */
struct WOLFSSL_CERT_MANAGER {
Signer* caTable[CA_TABLE_SIZE]; /* the CA signer table */
void* heap; /* heap helper */
#ifdef WOLFSSL_TRUST_PEER_CERT
TrustedPeerCert* tpTable[TP_TABLE_SIZE]; /* table of trusted peer certs */
wolfSSL_Mutex tpLock; /* trusted peer list lock */
#endif
WOLFSSL_CRL* crl; /* CRL checker */
WOLFSSL_OCSP* ocsp; /* OCSP checker */
#if !defined(NO_WOLFSSL_SERVER) && (defined(HAVE_CERTIFICATE_STATUS_REQUEST) \
|| defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2))
WOLFSSL_OCSP* ocsp_stapling; /* OCSP checker for OCSP stapling */
#endif
char* ocspOverrideURL; /* use this responder */
void* ocspIOCtx; /* I/O callback CTX */
CallbackCACache caCacheCallback; /* CA cache addition callback */
CbMissingCRL cbMissingCRL; /* notify through cb of missing crl */
CbOCSPIO ocspIOCb; /* I/O callback for OCSP lookup */
CbOCSPRespFree ocspRespFreeCb; /* Frees OCSP Response from IO Cb */
wolfSSL_Mutex caLock; /* CA list lock */
byte crlEnabled; /* is CRL on ? */
byte crlCheckAll; /* always leaf, but all ? */
byte ocspEnabled; /* is OCSP on ? */
byte ocspCheckAll; /* always leaf, but all ? */
byte ocspSendNonce; /* send the OCSP nonce ? */
byte ocspUseOverrideURL; /* ignore cert's responder, override */
byte ocspStaplingEnabled; /* is OCSP Stapling on ? */
#ifndef NO_RSA
short minRsaKeySz; /* minimum allowed RSA key size */
#endif
#if defined(HAVE_ECC) || defined(HAVE_ED25519)
short minEccKeySz; /* minimum allowed ECC key size */
#endif
};
WOLFSSL_LOCAL int CM_SaveCertCache(WOLFSSL_CERT_MANAGER*, const char*);
WOLFSSL_LOCAL int CM_RestoreCertCache(WOLFSSL_CERT_MANAGER*, const char*);
WOLFSSL_LOCAL int CM_MemSaveCertCache(WOLFSSL_CERT_MANAGER*, void*, int, int*);
WOLFSSL_LOCAL int CM_MemRestoreCertCache(WOLFSSL_CERT_MANAGER*, const void*, int);
WOLFSSL_LOCAL int CM_GetCertCacheMemSize(WOLFSSL_CERT_MANAGER*);
/* wolfSSL Sock Addr */
struct WOLFSSL_SOCKADDR {
unsigned int sz; /* sockaddr size */
void* sa; /* pointer to the sockaddr_in or sockaddr_in6 */
};
typedef struct WOLFSSL_DTLS_CTX {
WOLFSSL_SOCKADDR peer;
int rfd;
int wfd;
} WOLFSSL_DTLS_CTX;
typedef struct WOLFSSL_DTLS_PEERSEQ {
word32 window[WOLFSSL_DTLS_WINDOW_WORDS];
/* Sliding window for current epoch */
word16 nextEpoch; /* Expected epoch in next record */
word16 nextSeq_hi; /* Expected sequence in next record */
word32 nextSeq_lo;
word32 prevWindow[WOLFSSL_DTLS_WINDOW_WORDS];
/* Sliding window for old epoch */
word32 prevSeq_lo;
word16 prevSeq_hi; /* Next sequence in allowed old epoch */
#ifdef WOLFSSL_MULTICAST
word16 peerId;
word32 highwaterMark;
#endif
} WOLFSSL_DTLS_PEERSEQ;
#define MAX_WRITE_IV_SZ 16 /* max size of client/server write_IV */
/* keys and secrets
* keep as a constant size (no additional ifdefs) for session export */
typedef struct Keys {
byte client_write_MAC_secret[MAX_DIGEST_SIZE]; /* max sizes */
byte server_write_MAC_secret[MAX_DIGEST_SIZE];
byte client_write_key[AES_256_KEY_SIZE]; /* max sizes */
byte server_write_key[AES_256_KEY_SIZE];
byte client_write_IV[MAX_WRITE_IV_SZ]; /* max sizes */
byte server_write_IV[MAX_WRITE_IV_SZ];
#if defined(HAVE_AEAD) || defined(WOLFSSL_SESSION_EXPORT)
byte aead_exp_IV[AEAD_MAX_EXP_SZ];
byte aead_enc_imp_IV[AEAD_MAX_IMP_SZ];
byte aead_dec_imp_IV[AEAD_MAX_IMP_SZ];
#endif
word32 peer_sequence_number_hi;
word32 peer_sequence_number_lo;
word32 sequence_number_hi;
word32 sequence_number_lo;
#ifdef WOLFSSL_DTLS
word16 curEpoch; /* Received epoch in current record */
word16 curSeq_hi; /* Received sequence in current record */
word32 curSeq_lo;
#ifdef WOLFSSL_MULTICAST
byte curPeerId; /* Received peer group ID in current record */
#endif
WOLFSSL_DTLS_PEERSEQ peerSeq[WOLFSSL_DTLS_PEERSEQ_SZ];
word16 dtls_peer_handshake_number;
word16 dtls_expected_peer_handshake_number;
word16 dtls_epoch; /* Current epoch */
word16 dtls_sequence_number_hi; /* Current epoch */
word32 dtls_sequence_number_lo;
word16 dtls_prev_sequence_number_hi; /* Previous epoch */
word32 dtls_prev_sequence_number_lo;
word16 dtls_handshake_number; /* Current tx handshake seq */
#endif
word32 encryptSz; /* last size of encrypted data */
word32 padSz; /* how much to advance after decrypt part */
byte encryptionOn; /* true after change cipher spec */
byte decryptedCur; /* only decrypt current record once */
#ifdef WOLFSSL_TLS13
byte updateResponseReq:1; /* KeyUpdate response from peer required. */
byte keyUpdateRespond:1; /* KeyUpdate is to be responded to. */
#endif
} Keys;
/** TLS Extensions - RFC 6066 */
#ifdef HAVE_TLS_EXTENSIONS
typedef enum {
TLSX_SERVER_NAME = 0x0000, /* a.k.a. SNI */
TLSX_MAX_FRAGMENT_LENGTH = 0x0001,
TLSX_TRUNCATED_HMAC = 0x0004,
TLSX_STATUS_REQUEST = 0x0005, /* a.k.a. OCSP stapling */
TLSX_SUPPORTED_GROUPS = 0x000a, /* a.k.a. Supported Curves */
TLSX_EC_POINT_FORMATS = 0x000b,
TLSX_SIGNATURE_ALGORITHMS = 0x000d,
TLSX_APPLICATION_LAYER_PROTOCOL = 0x0010, /* a.k.a. ALPN */
TLSX_STATUS_REQUEST_V2 = 0x0011, /* a.k.a. OCSP stapling v2 */
TLSX_QUANTUM_SAFE_HYBRID = 0x0018, /* a.k.a. QSH */
TLSX_SESSION_TICKET = 0x0023,
#ifdef WOLFSSL_TLS13
TLSX_KEY_SHARE = 0x0028,
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
TLSX_PRE_SHARED_KEY = 0x0029,
#endif
#ifdef WOLFSSL_EARLY_DATA
TLSX_EARLY_DATA = 0x002a,
#endif
TLSX_SUPPORTED_VERSIONS = 0x002b,
TLSX_COOKIE = 0x002c,
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
TLSX_PSK_KEY_EXCHANGE_MODES = 0x002d,
#endif
#ifdef WOLFSSL_POST_HANDSHAKE_AUTH
TLSX_POST_HANDSHAKE_AUTH = 0x0031,
#endif
#endif
TLSX_RENEGOTIATION_INFO = 0xff01
} TLSX_Type;
typedef struct TLSX {
TLSX_Type type; /* Extension Type */
void* data; /* Extension Data */
word32 val; /* Extension Value */
byte resp; /* IsResponse Flag */
struct TLSX* next; /* List Behavior */
} TLSX;
WOLFSSL_LOCAL TLSX* TLSX_Find(TLSX* list, TLSX_Type type);
WOLFSSL_LOCAL void TLSX_FreeAll(TLSX* list, void* heap);
WOLFSSL_LOCAL int TLSX_SupportExtensions(WOLFSSL* ssl);
WOLFSSL_LOCAL int TLSX_PopulateExtensions(WOLFSSL* ssl, byte isRequest);
#ifndef NO_WOLFSSL_CLIENT
WOLFSSL_LOCAL word16 TLSX_GetRequestSize(WOLFSSL* ssl, byte msgType);
WOLFSSL_LOCAL word16 TLSX_WriteRequest(WOLFSSL* ssl, byte* output,
byte msgType);
#endif
#ifndef NO_WOLFSSL_SERVER
WOLFSSL_LOCAL word16 TLSX_GetResponseSize(WOLFSSL* ssl, byte msgType);
WOLFSSL_LOCAL word16 TLSX_WriteResponse(WOLFSSL* ssl, byte* output,
byte msgType);
#endif
WOLFSSL_LOCAL int TLSX_Parse(WOLFSSL* ssl, byte* input, word16 length,
byte msgType, Suites *suites);
#elif defined(HAVE_SNI) \
|| defined(HAVE_MAX_FRAGMENT) \
|| defined(HAVE_TRUNCATED_HMAC) \
|| defined(HAVE_CERTIFICATE_STATUS_REQUEST) \
|| defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2) \
|| defined(HAVE_SUPPORTED_CURVES) \
|| defined(HAVE_ALPN) \
|| defined(HAVE_QSH) \
|| defined(HAVE_SESSION_TICKET) \
|| defined(HAVE_SECURE_RENEGOTIATION) \
|| defined(HAVE_SERVER_RENEGOTIATION_INFO)
#error Using TLS extensions requires HAVE_TLS_EXTENSIONS to be defined.
#endif /* HAVE_TLS_EXTENSIONS */
/** Server Name Indication - RFC 6066 (session 3) */
#ifdef HAVE_SNI
typedef struct SNI {
byte type; /* SNI Type */
union { char* host_name; } data; /* SNI Data */
struct SNI* next; /* List Behavior */
byte status; /* Matching result */
#ifndef NO_WOLFSSL_SERVER
byte options; /* Behavior options */
#endif
} SNI;
WOLFSSL_LOCAL int TLSX_UseSNI(TLSX** extensions, byte type, const void* data,
word16 size, void* heap);
WOLFSSL_LOCAL byte TLSX_SNI_Status(TLSX* extensions, byte type);
WOLFSSL_LOCAL word16 TLSX_SNI_GetRequest(TLSX* extensions, byte type,
void** data);
#ifndef NO_WOLFSSL_SERVER
WOLFSSL_LOCAL void TLSX_SNI_SetOptions(TLSX* extensions, byte type,
byte options);
WOLFSSL_LOCAL int TLSX_SNI_GetFromBuffer(const byte* buffer, word32 bufferSz,
byte type, byte* sni, word32* inOutSz);
#endif
#endif /* HAVE_SNI */
/* Application-Layer Protocol Negotiation - RFC 7301 */
#ifdef HAVE_ALPN
typedef struct ALPN {
char* protocol_name; /* ALPN protocol name */
struct ALPN* next; /* List Behavior */
byte options; /* Behavior options */
byte negotiated; /* ALPN protocol negotiated or not */
} ALPN;
WOLFSSL_LOCAL int TLSX_ALPN_GetRequest(TLSX* extensions,
void** data, word16 *dataSz);
WOLFSSL_LOCAL int TLSX_UseALPN(TLSX** extensions, const void* data,
word16 size, byte options, void* heap);
WOLFSSL_LOCAL int TLSX_ALPN_SetOptions(TLSX** extensions, const byte option);
#endif /* HAVE_ALPN */
/** Maximum Fragment Length Negotiation - RFC 6066 (session 4) */
#ifdef HAVE_MAX_FRAGMENT
WOLFSSL_LOCAL int TLSX_UseMaxFragment(TLSX** extensions, byte mfl, void* heap);
#endif /* HAVE_MAX_FRAGMENT */
/** Truncated HMAC - RFC 6066 (session 7) */
#ifdef HAVE_TRUNCATED_HMAC
WOLFSSL_LOCAL int TLSX_UseTruncatedHMAC(TLSX** extensions, void* heap);
#endif /* HAVE_TRUNCATED_HMAC */
/** Certificate Status Request - RFC 6066 (session 8) */
#ifdef HAVE_CERTIFICATE_STATUS_REQUEST
typedef struct {
byte status_type;
byte options;
union {
OcspRequest ocsp;
} request;
} CertificateStatusRequest;
WOLFSSL_LOCAL int TLSX_UseCertificateStatusRequest(TLSX** extensions,
byte status_type, byte options, void* heap, int devId);
#ifndef NO_CERTS
WOLFSSL_LOCAL int TLSX_CSR_InitRequest(TLSX* extensions, DecodedCert* cert,
void* heap);
#endif
WOLFSSL_LOCAL void* TLSX_CSR_GetRequest(TLSX* extensions);
WOLFSSL_LOCAL int TLSX_CSR_ForceRequest(WOLFSSL* ssl);
#endif
/** Certificate Status Request v2 - RFC 6961 */
#ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2
typedef struct CSRIv2 {
byte status_type;
byte options;
word16 requests;
union {
OcspRequest ocsp[1 + MAX_CHAIN_DEPTH];
} request;
struct CSRIv2* next;
} CertificateStatusRequestItemV2;
WOLFSSL_LOCAL int TLSX_UseCertificateStatusRequestV2(TLSX** extensions,
byte status_type, byte options, void* heap, int devId);
#ifndef NO_CERTS
WOLFSSL_LOCAL int TLSX_CSR2_InitRequests(TLSX* extensions, DecodedCert* cert,
byte isPeer, void* heap);
#endif
WOLFSSL_LOCAL void* TLSX_CSR2_GetRequest(TLSX* extensions, byte status_type,
byte index);
WOLFSSL_LOCAL int TLSX_CSR2_ForceRequest(WOLFSSL* ssl);
#endif
/** Supported Elliptic Curves - RFC 4492 (session 4) */
#ifdef HAVE_SUPPORTED_CURVES
typedef struct SupportedCurve {
word16 name; /* Curve Names */
struct SupportedCurve* next; /* List Behavior */
} SupportedCurve;
typedef struct PointFormat {
byte format; /* PointFormat */
struct PointFormat* next; /* List Behavior */
} PointFormat;
WOLFSSL_LOCAL int TLSX_UseSupportedCurve(TLSX** extensions, word16 name,
void* heap);
WOLFSSL_LOCAL int TLSX_UsePointFormat(TLSX** extensions, byte point,
void* heap);
#ifndef NO_WOLFSSL_SERVER
WOLFSSL_LOCAL int TLSX_ValidateSupportedCurves(WOLFSSL* ssl, byte first,
byte second);
#endif
#endif /* HAVE_SUPPORTED_CURVES */
/** Renegotiation Indication - RFC 5746 */
#if defined(HAVE_SECURE_RENEGOTIATION) \
|| defined(HAVE_SERVER_RENEGOTIATION_INFO)
enum key_cache_state {
SCR_CACHE_NULL = 0, /* empty / begin state */
SCR_CACHE_NEEDED, /* need to cache keys */
SCR_CACHE_COPY, /* we have a cached copy */
SCR_CACHE_PARTIAL, /* partial restore to real keys */
SCR_CACHE_COMPLETE /* complete restore to real keys */
};
/* Additional Connection State according to rfc5746 section 3.1 */
typedef struct SecureRenegotiation {
byte enabled; /* secure_renegotiation flag in rfc */
byte startScr; /* server requested client to start scr */
enum key_cache_state cache_status; /* track key cache state */
byte client_verify_data[TLS_FINISHED_SZ]; /* cached */
byte server_verify_data[TLS_FINISHED_SZ]; /* cached */
byte subject_hash[WC_SHA_DIGEST_SIZE]; /* peer cert hash */
Keys tmp_keys; /* can't overwrite real keys yet */
} SecureRenegotiation;
WOLFSSL_LOCAL int TLSX_UseSecureRenegotiation(TLSX** extensions, void* heap);
#ifdef HAVE_SERVER_RENEGOTIATION_INFO
WOLFSSL_LOCAL int TLSX_AddEmptyRenegotiationInfo(TLSX** extensions, void* heap);
#endif
#endif /* HAVE_SECURE_RENEGOTIATION */
/** Session Ticket - RFC 5077 (session 3.2) */
#ifdef HAVE_SESSION_TICKET
typedef struct SessionTicket {
word32 lifetime;
#ifdef WOLFSSL_TLS13
word64 seen;
word32 ageAdd;
#endif
byte* data;
word16 size;
} SessionTicket;
WOLFSSL_LOCAL int TLSX_UseSessionTicket(TLSX** extensions,
SessionTicket* ticket, void* heap);
WOLFSSL_LOCAL SessionTicket* TLSX_SessionTicket_Create(word32 lifetime,
byte* data, word16 size, void* heap);
WOLFSSL_LOCAL void TLSX_SessionTicket_Free(SessionTicket* ticket, void* heap);
#endif /* HAVE_SESSION_TICKET */
/** Quantum-Safe-Hybrid - draft-whyte-qsh-tls12-00 */
#ifdef HAVE_QSH
typedef struct QSHScheme {
struct QSHScheme* next; /* List Behavior */
byte* PK;
word16 name; /* QSHScheme Names */
word16 PKLen;
} QSHScheme;
typedef struct QSHkey {
struct QSHKey* next;
word16 name;
buffer pub;
buffer pri;
} QSHKey;
typedef struct QSHSecret {
QSHScheme* list;
buffer* SerSi;
buffer* CliSi;
} QSHSecret;
/* used in key exchange during handshake */
WOLFSSL_LOCAL int TLSX_QSHCipher_Parse(WOLFSSL* ssl, const byte* input,
word16 length, byte isServer);
WOLFSSL_LOCAL word16 TLSX_QSHPK_Write(QSHScheme* list, byte* output);
WOLFSSL_LOCAL word16 TLSX_QSH_GetSize(QSHScheme* list, byte isRequest);
/* used by api for setting a specific QSH scheme */
WOLFSSL_LOCAL int TLSX_UseQSHScheme(TLSX** extensions, word16 name,
byte* pKey, word16 pKeySz, void* heap);
/* used when parsing in QSHCipher structs */
WOLFSSL_LOCAL int QSH_Decrypt(QSHKey* key, byte* in, word32 szIn,
byte* out, word16* szOut);
#ifndef NO_WOLFSSL_SERVER
WOLFSSL_LOCAL int TLSX_ValidateQSHScheme(TLSX** extensions, word16 name);
#endif
#endif /* HAVE_QSH */
#ifdef WOLFSSL_TLS13
/* Cookie extension information - cookie data. */
typedef struct Cookie {
word16 len;
byte data;
} Cookie;
WOLFSSL_LOCAL int TLSX_Cookie_Use(WOLFSSL* ssl, byte* data, word16 len,
byte* mac, byte macSz, int resp);
/* Key Share - TLS v1.3 Specification */
/* The KeyShare extension information - entry in a linked list. */
typedef struct KeyShareEntry {
word16 group; /* NamedGroup */
byte* ke; /* Key exchange data */
word32 keLen; /* Key exchange data length */
void* key; /* Private key */
word32 keyLen; /* Private key length */
struct KeyShareEntry* next; /* List pointer */
} KeyShareEntry;
WOLFSSL_LOCAL int TLSX_KeyShare_Use(WOLFSSL* ssl, word16 group, word16 len,
byte* data, KeyShareEntry **kse);
WOLFSSL_LOCAL int TLSX_KeyShare_Empty(WOLFSSL* ssl);
WOLFSSL_LOCAL int TLSX_KeyShare_Establish(WOLFSSL* ssl);
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
#ifndef WOLFSSL_TLS13_DRAFT_18
/* Ticket nonce - for deriving PSK.
* Length allowed to be: 1..255. Only support 4 bytes.
*/
typedef struct TicketNonce {
byte len;
byte data[MAX_TICKET_NONCE_SZ];
} TicketNonce;
#endif
/* The PreSharedKey extension information - entry in a linked list. */
typedef struct PreSharedKey {
word16 identityLen; /* Length of identity */
byte* identity; /* PSK identity */
word32 ticketAge; /* Age of the ticket */
byte cipherSuite0; /* Cipher Suite */
byte cipherSuite; /* Cipher Suite */
word32 binderLen; /* Length of HMAC */
byte binder[MAX_DIGEST_SIZE]; /* HMAC of hanshake */
byte hmac; /* HMAC algorithm */
byte resumption:1; /* Resumption PSK */
byte chosen:1; /* Server's choice */
struct PreSharedKey* next; /* List pointer */
} PreSharedKey;
WOLFSSL_LOCAL word16 TLSX_PreSharedKey_WriteBinders(PreSharedKey* list,
byte* output, byte msgType);
WOLFSSL_LOCAL word16 TLSX_PreSharedKey_GetSizeBinders(PreSharedKey* list,
byte msgType);
WOLFSSL_LOCAL int TLSX_PreSharedKey_Use(WOLFSSL* ssl, byte* identity,
word16 len, word32 age, byte hmac,
byte cipherSuite0, byte cipherSuite,
byte resumption,
PreSharedKey **preSharedKey);
/* The possible Pre-Shared Key key exchange modes. */
enum PskKeyExchangeMode {
PSK_KE,
PSK_DHE_KE
};
/* User can define this. */
#ifndef WOLFSSL_DEF_PSK_CIPHER
#define WOLFSSL_DEF_PSK_CIPHER TLS_AES_128_GCM_SHA256
#endif
WOLFSSL_LOCAL int TLSX_PskKeModes_Use(WOLFSSL* ssl, byte modes);
#ifdef WOLFSSL_EARLY_DATA
WOLFSSL_LOCAL int TLSX_EarlyData_Use(WOLFSSL* ssl, word32 max);
#endif
#endif /* HAVE_SESSION_TICKET || !NO_PSK */
/* The types of keys to derive for. */
enum DeriveKeyType {
no_key,
early_data_key,
handshake_key,
traffic_key,
update_traffic_key
};
/* The key update request values for KeyUpdate message. */
enum KeyUpdateRequest {
update_not_requested,
update_requested
};
#endif /* WOLFSSL_TLS13 */
/* wolfSSL context type */
struct WOLFSSL_CTX {
WOLFSSL_METHOD* method;
#ifdef SINGLE_THREADED
WC_RNG* rng; /* to be shared with WOLFSSL w/o locking */
#endif
wolfSSL_Mutex countMutex; /* reference count mutex */
int refCount; /* reference count */
int err; /* error code in case of mutex not created */
#ifndef NO_DH
buffer serverDH_P;
buffer serverDH_G;
#endif
#ifndef NO_CERTS
DerBuffer* certificate;
DerBuffer* certChain;
/* chain after self, in DER, with leading size for each cert */
#ifdef OPENSSL_EXTRA
WOLF_STACK_OF(WOLFSSL_X509_NAME)* ca_names;
#endif
#if defined(WOLFSSL_NGINX) || defined (WOLFSSL_HAPROXY)
WOLF_STACK_OF(WOLFSSL_X509)* x509Chain;
#endif
#ifdef WOLFSSL_TLS13
int certChainCnt;
#endif
DerBuffer* privateKey;
byte privateKeyType;
int privateKeySz;
WOLFSSL_CERT_MANAGER* cm; /* our cert manager, ctx owns SSL will use */
#endif
#ifdef KEEP_OUR_CERT
WOLFSSL_X509* ourCert; /* keep alive a X509 struct of cert */
int ownOurCert; /* Dispose of certificate if we own */
#endif
Suites* suites; /* make dynamic, user may not need/set */
void* heap; /* for user memory overrides */
byte verifyPeer;
byte verifyNone;
byte failNoCert;
byte failNoCertxPSK; /* fail if no cert with the exception of PSK*/
byte sessionCacheOff;
byte sessionCacheFlushOff;
#ifdef HAVE_EXT_CACHE
byte internalCacheOff;
#endif
byte sendVerify; /* for client side */
byte haveRSA; /* RSA available */
byte haveECC; /* ECC available */
byte haveDH; /* server DH parms set by user */
byte haveNTRU; /* server private NTRU key loaded */
byte haveECDSAsig; /* server cert signed w/ ECDSA */
byte haveStaticECC; /* static server ECC private key */
byte partialWrite; /* only one msg per write call */
byte quietShutdown; /* don't send close notify */
byte groupMessages; /* group handshake messages before sending */
byte minDowngrade; /* minimum downgrade version */
byte haveEMS; /* have extended master secret extension */
byte useClientOrder:1; /* Use client's cipher preference order */
#ifdef WOLFSSL_TLS13
byte noTicketTls13:1; /* Server won't create new Ticket */
byte noPskDheKe:1; /* Don't use (EC)DHE with PSK */
#endif
#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH)
byte postHandshakeAuth:1; /* Post-handshake auth supported. */
#endif
#ifdef WOLFSSL_MULTICAST
byte haveMcast; /* multicast requested */
byte mcastID; /* multicast group ID */
#endif
#if defined(WOLFSSL_SCTP) && defined(WOLFSSL_DTLS)
byte dtlsSctp; /* DTLS-over-SCTP mode */
word16 dtlsMtuSz; /* DTLS MTU size */
#endif
#ifndef NO_DH
word16 minDhKeySz; /* minimum DH key size */
#endif
#ifndef NO_RSA
short minRsaKeySz; /* minimum RSA key size */
#endif
#if defined(HAVE_ECC) || defined(HAVE_ED25519)
short minEccKeySz; /* minimum ECC key size */
#endif
#ifdef OPENSSL_EXTRA
word32 disabledCurves; /* curves disabled by user */
byte verifyDepth; /* maximum verification depth */
unsigned long mask; /* store SSL_OP_ flags */
#endif
CallbackIORecv CBIORecv;
CallbackIOSend CBIOSend;
#ifdef WOLFSSL_DTLS
CallbackGenCookie CBIOCookie; /* gen cookie callback */
wc_dtls_export dtls_export; /* export function for DTLS session */
#ifdef WOLFSSL_SESSION_EXPORT
CallbackGetPeer CBGetPeer;
CallbackSetPeer CBSetPeer;
#endif
#endif /* WOLFSSL_DTLS */
VerifyCallback verifyCallback; /* cert verification callback */
word32 timeout; /* session timeout */
#if defined(HAVE_ECC) || defined(HAVE_CURVE25519)
word32 ecdhCurveOID; /* curve Ecc_Sum */
#endif
#ifdef HAVE_ECC
word16 eccTempKeySz; /* in octets 20 - 66 */
word32 pkCurveOID; /* curve Ecc_Sum */
#endif
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
byte havePSK; /* psk key set by user */
wc_psk_client_callback client_psk_cb; /* client callback */
wc_psk_server_callback server_psk_cb; /* server callback */
char server_hint[MAX_PSK_ID_LEN + NULL_TERM_LEN];
#endif /* HAVE_SESSION_TICKET || !NO_PSK */
#ifdef WOLFSSL_EARLY_DATA
word32 maxEarlyDataSz;
#endif
#ifdef HAVE_ANON
byte haveAnon; /* User wants to allow Anon suites */
#endif /* HAVE_ANON */
#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
pem_password_cb* passwd_cb;
void* userdata;
WOLFSSL_X509_STORE x509_store; /* points to ctx->cm */
byte readAhead;
void* userPRFArg; /* passed to prf callback */
#endif /* OPENSSL_EXTRA */
#ifdef HAVE_EX_DATA
void* ex_data[MAX_EX_DATA];
#endif
#if defined(HAVE_ALPN) && (defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY))
CallbackALPNSelect alpnSelect;
void* alpnSelectArg;
#endif
#if defined(HAVE_STUNNEL) || defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
CallbackSniRecv sniRecvCb;
void* sniRecvCbArg;
#endif
#if defined(WOLFSSL_MULTICAST) && defined(WOLFSSL_DTLS)
CallbackMcastHighwater mcastHwCb; /* Sequence number highwater callback */
word32 mcastFirstSeq; /* first trigger level */
word32 mcastSecondSeq; /* second tigger level */
word32 mcastMaxSeq; /* max level */
#endif
#ifdef HAVE_OCSP
WOLFSSL_OCSP ocsp;
#endif
int devId; /* async device id to use */
#ifdef HAVE_TLS_EXTENSIONS
TLSX* extensions; /* RFC 6066 TLS Extensions data */
#ifndef NO_WOLFSSL_SERVER
#if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \
|| defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2)
OcspRequest* certOcspRequest;
#endif
#if defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2)
OcspRequest* chainOcspRequest[MAX_CHAIN_DEPTH];
#endif
#endif
#if defined(HAVE_SESSION_TICKET) && !defined(NO_WOLFSSL_SERVER)
SessionTicketEncCb ticketEncCb; /* enc/dec session ticket Cb */
void* ticketEncCtx; /* session encrypt context */
int ticketHint; /* ticket hint in seconds */
#endif
#ifdef HAVE_SUPPORTED_CURVES
byte userCurves; /* indicates user called wolfSSL_CTX_UseSupportedCurve */
#endif
#endif
#ifdef ATOMIC_USER
CallbackMacEncrypt MacEncryptCb; /* Atomic User Mac/Encrypt Cb */
CallbackDecryptVerify DecryptVerifyCb; /* Atomic User Decrypt/Verify Cb */
#endif
#ifdef HAVE_PK_CALLBACKS
#ifdef HAVE_ECC
CallbackEccSign EccSignCb; /* User EccSign Callback handler */
CallbackEccVerify EccVerifyCb; /* User EccVerify Callback handler */
CallbackEccSharedSecret EccSharedSecretCb; /* User EccVerify Callback handler */
#ifdef HAVE_ED25519
/* User Ed25519Sign Callback handler */
CallbackEd25519Sign Ed25519SignCb;
/* User Ed25519Verify Callback handler */
CallbackEd25519Verify Ed25519VerifyCb;
#endif
#ifdef HAVE_CURVE25519
/* User EccSharedSecret Callback handler */
CallbackX25519SharedSecret X25519SharedSecretCb;
#endif
#endif /* HAVE_ECC */
#ifndef NO_RSA
CallbackRsaSign RsaSignCb; /* User RsaSign Callback handler */
CallbackRsaVerify RsaVerifyCb; /* User RsaVerify Callback handler */
#ifdef WC_RSA_PSS
CallbackRsaPssSign RsaPssSignCb; /* User RsaPssSign */
CallbackRsaPssVerify RsaPssVerifyCb; /* User RsaPssVerify */
#endif
CallbackRsaEnc RsaEncCb; /* User Rsa Public Encrypt handler */
CallbackRsaDec RsaDecCb; /* User Rsa Private Decrypt handler */
#endif /* NO_RSA */
#endif /* HAVE_PK_CALLBACKS */
#ifdef HAVE_WOLF_EVENT
WOLF_EVENT_QUEUE event_queue;
#endif /* HAVE_WOLF_EVENT */
#ifdef HAVE_EXT_CACHE
WOLFSSL_SESSION*(*get_sess_cb)(WOLFSSL*, unsigned char*, int, int*);
int (*new_sess_cb)(WOLFSSL*, WOLFSSL_SESSION*);
void (*rem_sess_cb)(WOLFSSL_CTX*, WOLFSSL_SESSION*);
#endif
#if defined(OPENSSL_EXTRA) && defined(WOLFCRYPT_HAVE_SRP) && !defined(NO_SHA256)
Srp* srp; /* TLS Secure Remote Password Protocol*/
byte* srp_password;
#endif
};
WOLFSSL_LOCAL
WOLFSSL_CTX* wolfSSL_CTX_new_ex(WOLFSSL_METHOD* method, void* heap);
WOLFSSL_LOCAL
int InitSSL_Ctx(WOLFSSL_CTX*, WOLFSSL_METHOD*, void* heap);
WOLFSSL_LOCAL
void FreeSSL_Ctx(WOLFSSL_CTX*);
WOLFSSL_LOCAL
void SSL_CtxResourceFree(WOLFSSL_CTX*);
WOLFSSL_LOCAL
int DeriveTlsKeys(WOLFSSL* ssl);
WOLFSSL_LOCAL
int ProcessOldClientHello(WOLFSSL* ssl, const byte* input, word32* inOutIdx,
word32 inSz, word16 sz);
#ifndef NO_CERTS
WOLFSSL_LOCAL
int AddCA(WOLFSSL_CERT_MANAGER* cm, DerBuffer** pDer, int type, int verify);
WOLFSSL_LOCAL
int AlreadySigner(WOLFSSL_CERT_MANAGER* cm, byte* hash);
#ifdef WOLFSSL_TRUST_PEER_CERT
WOLFSSL_LOCAL
int AddTrustedPeer(WOLFSSL_CERT_MANAGER* cm, DerBuffer** pDer, int verify);
WOLFSSL_LOCAL
int AlreadyTrustedPeer(WOLFSSL_CERT_MANAGER* cm, byte* hash);
#endif
#endif
/* All cipher suite related info
* Keep as a constant size (no ifdefs) for session export */
typedef struct CipherSpecs {
word16 key_size;
word16 iv_size;
word16 block_size;
word16 aead_mac_size;
byte bulk_cipher_algorithm;
byte cipher_type; /* block, stream, or aead */
byte mac_algorithm;
byte kea; /* key exchange algo */
byte sig_algo;
byte hash_size;
byte pad_size;
byte static_ecdh;
} CipherSpecs;
void InitCipherSpecs(CipherSpecs* cs);
/* Supported Message Authentication Codes from page 43 */
enum MACAlgorithm {
no_mac,
md5_mac,
sha_mac,
sha224_mac,
sha256_mac, /* needs to match external KDF_MacAlgorithm */
sha384_mac,
sha512_mac,
rmd_mac,
blake2b_mac
};
/* Supported Key Exchange Protocols */
enum KeyExchangeAlgorithm {
no_kea,
rsa_kea,
diffie_hellman_kea,
fortezza_kea,
psk_kea,
dhe_psk_kea,
ecdhe_psk_kea,
ntru_kea,
ecc_diffie_hellman_kea,
ecc_static_diffie_hellman_kea /* for verify suite only */
};
/* Supported Authentication Schemes */
enum SignatureAlgorithm {
anonymous_sa_algo = 0,
rsa_sa_algo = 1,
dsa_sa_algo = 2,
ecc_dsa_sa_algo = 3,
rsa_pss_sa_algo = 8,
ed25519_sa_algo = 9
};
/* Supprted ECC Curve Types */
enum EccCurves {
named_curve = 3
};
/* Valid client certificate request types from page 27 */
enum ClientCertificateType {
rsa_sign = 1,
dss_sign = 2,
rsa_fixed_dh = 3,
dss_fixed_dh = 4,
rsa_ephemeral_dh = 5,
dss_ephemeral_dh = 6,
fortezza_kea_cert = 20,
ecdsa_sign = 64,
rsa_fixed_ecdh = 65,
ecdsa_fixed_ecdh = 66
};
enum CipherType { stream, block, aead };
/* cipher for now */
typedef struct Ciphers {
#ifdef BUILD_ARC4
Arc4* arc4;
#endif
#ifdef BUILD_DES3
Des3* des3;
#endif
#if defined(BUILD_AES) || defined(BUILD_AESGCM)
Aes* aes;
#if defined(BUILD_AESGCM) || defined(HAVE_AESCCM) || defined(WOLFSSL_TLS13)
byte* additional;
byte* nonce;
#endif
#endif
#ifdef HAVE_CAMELLIA
Camellia* cam;
#endif
#ifdef HAVE_CHACHA
ChaCha* chacha;
#endif
#ifdef HAVE_HC128
HC128* hc128;
#endif
#ifdef BUILD_RABBIT
Rabbit* rabbit;
#endif
#ifdef HAVE_IDEA
Idea* idea;
#endif
byte state;
byte setup; /* have we set it up flag for detection */
} Ciphers;
#ifdef HAVE_ONE_TIME_AUTH
/* Ciphers for one time authentication such as poly1305 */
typedef struct OneTimeAuth {
#ifdef HAVE_POLY1305
Poly1305* poly1305;
#endif
byte setup; /* flag for if a cipher has been set */
} OneTimeAuth;
#endif
WOLFSSL_LOCAL void InitCiphers(WOLFSSL* ssl);
WOLFSSL_LOCAL void FreeCiphers(WOLFSSL* ssl);
/* hashes type */
typedef struct Hashes {
#if !defined(NO_MD5) && !defined(NO_OLD_TLS)
byte md5[WC_MD5_DIGEST_SIZE];
#endif
#if !defined(NO_SHA)
byte sha[WC_SHA_DIGEST_SIZE];
#endif
#ifndef NO_SHA256
byte sha256[WC_SHA256_DIGEST_SIZE];
#endif
#ifdef WOLFSSL_SHA384
byte sha384[WC_SHA384_DIGEST_SIZE];
#endif
#ifdef WOLFSSL_SHA512
byte sha512[WC_SHA512_DIGEST_SIZE];
#endif
} Hashes;
WOLFSSL_LOCAL int BuildCertHashes(WOLFSSL* ssl, Hashes* hashes);
#ifdef WOLFSSL_TLS13
typedef union Digest {
#ifndef NO_WOLFSSL_SHA256
wc_Sha256 sha256;
#endif
#ifdef WOLFSSL_SHA384
wc_Sha384 sha384;
#endif
#ifdef WOLFSSL_SHA512
wc_Sha512 sha512;
#endif
} Digest;
#endif
/* Static x509 buffer */
typedef struct x509_buffer {
int length; /* actual size */
byte buffer[MAX_X509_SIZE]; /* max static cert size */
} x509_buffer;
/* wolfSSL X509_CHAIN, for no dynamic memory SESSION_CACHE */
struct WOLFSSL_X509_CHAIN {
int count; /* total number in chain */
x509_buffer certs[MAX_CHAIN_DEPTH]; /* only allow max depth 4 for now */
};
/* wolfSSL session type */
struct WOLFSSL_SESSION {
word32 bornOn; /* create time in seconds */
word32 timeout; /* timeout in seconds */
byte sessionID[ID_LEN]; /* id for protocol */
byte sessionIDSz;
byte masterSecret[SECRET_LEN]; /* stored secret */
word16 haveEMS; /* ext master secret flag */
#ifdef SESSION_CERTS
WOLFSSL_X509_CHAIN chain; /* peer cert chain, static */
#ifdef WOLFSSL_ALT_CERT_CHAINS
WOLFSSL_X509_CHAIN altChain; /* peer alt cert chain, static */
#endif
#endif
#if defined(SESSION_CERTS) || (defined(WOLFSSL_TLS13) && \
defined(HAVE_SESSION_TICKET))
ProtocolVersion version; /* which version was used */
byte cipherSuite0; /* first byte, normally 0 */
byte cipherSuite; /* 2nd byte, actual suite */
#endif
#ifndef NO_CLIENT_CACHE
word16 idLen; /* serverID length */
byte serverID[SERVER_ID_LEN]; /* for easier client lookup */
#endif
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
#ifdef WOLFSSL_TLS13
byte namedGroup;
word32 ticketSeen; /* Time ticket seen (ms) */
word32 ticketAdd; /* Added by client */
#ifndef WOLFSSL_TLS13_DRAFT_18
TicketNonce ticketNonce; /* Nonce used to derive PSK */
#endif
#endif
#ifdef WOLFSSL_EARLY_DATA
word32 maxEarlyDataSz;
#endif
byte* ticket;
word16 ticketLen;
byte staticTicket[SESSION_TICKET_LEN];
byte isDynamic;
#endif
#ifdef HAVE_EXT_CACHE
byte isAlloced;
#endif
#ifdef HAVE_EX_DATA
void* ex_data[MAX_EX_DATA];
#endif
};
WOLFSSL_LOCAL
WOLFSSL_SESSION* GetSession(WOLFSSL*, byte*, byte);
WOLFSSL_LOCAL
int SetSession(WOLFSSL*, WOLFSSL_SESSION*);
typedef int (*hmacfp) (WOLFSSL*, byte*, const byte*, word32, int, int);
#ifndef NO_CLIENT_CACHE
WOLFSSL_SESSION* GetSessionClient(WOLFSSL*, const byte*, int);
#endif
/* client connect state for nonblocking restart */
enum ConnectState {
CONNECT_BEGIN = 0,
CLIENT_HELLO_SENT,
HELLO_AGAIN, /* HELLO_AGAIN s for DTLS case */
HELLO_AGAIN_REPLY,
FIRST_REPLY_DONE,
FIRST_REPLY_FIRST,
FIRST_REPLY_SECOND,
FIRST_REPLY_THIRD,
FIRST_REPLY_FOURTH,
FINISHED_DONE,
SECOND_REPLY_DONE
};
/* server accept state for nonblocking restart */
enum AcceptState {
ACCEPT_BEGIN = 0,
ACCEPT_CLIENT_HELLO_DONE,
ACCEPT_HELLO_RETRY_REQUEST_DONE,
ACCEPT_FIRST_REPLY_DONE,
SERVER_HELLO_SENT,
SERVER_EXTENSIONS_SENT,
CERT_SENT,
CERT_VERIFY_SENT,
CERT_STATUS_SENT,
KEY_EXCHANGE_SENT,
CERT_REQ_SENT,
SERVER_HELLO_DONE,
ACCEPT_SECOND_REPLY_DONE,
TICKET_SENT,
CHANGE_CIPHER_SENT,
ACCEPT_FINISHED_DONE,
ACCEPT_THIRD_REPLY_DONE
};
/* buffers for struct WOLFSSL */
typedef struct Buffers {
bufferStatic inputBuffer;
bufferStatic outputBuffer;
buffer domainName; /* for client check */
buffer clearOutputBuffer;
buffer sig; /* signature data */
buffer digest; /* digest data */
int prevSent; /* previous plain text bytes sent
when got WANT_WRITE */
int plainSz; /* plain text bytes in buffer to send
when got WANT_WRITE */
byte weOwnCert; /* SSL own cert flag */
byte weOwnCertChain; /* SSL own cert chain flag */
byte weOwnKey; /* SSL own key flag */
byte weOwnDH; /* SSL own dh (p,g) flag */
#ifndef NO_DH
buffer serverDH_P; /* WOLFSSL_CTX owns, unless we own */
buffer serverDH_G; /* WOLFSSL_CTX owns, unless we own */
buffer serverDH_Pub;
buffer serverDH_Priv;
DhKey* serverDH_Key;
#endif
#ifndef NO_CERTS
DerBuffer* certificate; /* WOLFSSL_CTX owns, unless we own */
DerBuffer* key; /* WOLFSSL_CTX owns, unless we own */
byte keyType; /* Type of key: RSA, ECC, Ed25519 */
int keySz; /* Size of RSA key */
DerBuffer* certChain; /* WOLFSSL_CTX owns, unless we own */
/* chain after self, in DER, with leading size for each cert */
#ifdef WOLFSSL_TLS13
int certChainCnt;
#endif
#endif
#ifdef WOLFSSL_SEND_HRR_COOKIE
buffer tls13CookieSecret; /* HRR cookie secret */
#endif
#ifdef WOLFSSL_DTLS
WOLFSSL_DTLS_CTX dtlsCtx; /* DTLS connection context */
#ifndef NO_WOLFSSL_SERVER
buffer dtlsCookieSecret; /* DTLS cookie secret */
#endif /* NO_WOLFSSL_SERVER */
#endif
#ifdef HAVE_PK_CALLBACKS
#ifdef HAVE_ECC
buffer peerEccDsaKey; /* we own for Ecc Verify Callbacks */
#endif /* HAVE_ECC */
#ifdef HAVE_ED25519
buffer peerEd25519Key; /* for Ed25519 Verify Callbacks */
#endif /* HAVE_ED25519 */
#ifndef NO_RSA
buffer peerRsaKey; /* we own for Rsa Verify Callbacks */
#endif /* NO_RSA */
#endif /* HAVE_PK_CALLBACKS */
} Buffers;
/* sub-states for send/do key share (key exchange) */
enum asyncState {
TLS_ASYNC_BEGIN = 0,
TLS_ASYNC_BUILD,
TLS_ASYNC_DO,
TLS_ASYNC_VERIFY,
TLS_ASYNC_FINALIZE,
TLS_ASYNC_END
};
/* sub-states for build message */
enum buildMsgState {
BUILD_MSG_BEGIN = 0,
BUILD_MSG_SIZE,
BUILD_MSG_HASH,
BUILD_MSG_VERIFY_MAC,
BUILD_MSG_ENCRYPT,
};
/* sub-states for cipher operations */
enum cipherState {
CIPHER_STATE_BEGIN = 0,
CIPHER_STATE_DO,
CIPHER_STATE_END,
};
typedef struct Options {
#ifndef NO_PSK
wc_psk_client_callback client_psk_cb;
wc_psk_server_callback server_psk_cb;
#endif /* NO_PSK */
#ifdef OPENSSL_EXTRA
unsigned long mask; /* store SSL_OP_ flags */
#endif
/* on/off or small bit flags, optimize layout */
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
word16 havePSK:1; /* psk key set by user */
#endif /* HAVE_SESSION_TICKET || !NO_PSK */
word16 sendVerify:2; /* false = 0, true = 1, sendBlank = 2 */
word16 sessionCacheOff:1;
word16 sessionCacheFlushOff:1;
#ifdef HAVE_EXT_CACHE
word16 internalCacheOff:1;
#endif
word16 side:1; /* client or server end */
word16 verifyPeer:1;
word16 verifyNone:1;
word16 failNoCert:1;
word16 failNoCertxPSK:1; /* fail for no cert except with PSK */
word16 downgrade:1; /* allow downgrade of versions */
word16 resuming:1;
word16 haveSessionId:1; /* server may not send */
word16 tls:1; /* using TLS ? */
word16 tls1_1:1; /* using TLSv1.1+ ? */
word16 tls1_3:1; /* using TLSv1.3+ ? */
word16 dtls:1; /* using datagrams ? */
word16 connReset:1; /* has the peer reset */
word16 isClosed:1; /* if we consider conn closed */
word16 closeNotify:1; /* we've received a close notify */
word16 sentNotify:1; /* we've sent a close notify */
word16 usingCompression:1; /* are we using compression */
word16 haveRSA:1; /* RSA available */
word16 haveECC:1; /* ECC available */
word16 haveDH:1; /* server DH parms set by user */
word16 haveNTRU:1; /* server NTRU private key loaded */
word16 haveQSH:1; /* have QSH ability */
word16 haveECDSAsig:1; /* server ECDSA signed cert */
word16 haveStaticECC:1; /* static server ECC private key */
word16 havePeerCert:1; /* do we have peer's cert */
word16 havePeerVerify:1; /* and peer's cert verify */
word16 usingPSK_cipher:1; /* are using psk as cipher */
word16 usingAnon_cipher:1; /* are we using an anon cipher */
word16 noPskDheKe:1; /* Don't use (EC)DHE with PSK */
word16 sendAlertState:1; /* nonblocking resume */
word16 partialWrite:1; /* only one msg per write call */
word16 quietShutdown:1; /* don't send close notify */
word16 certOnly:1; /* stop once we get cert */
word16 groupMessages:1; /* group handshake messages */
word16 usingNonblock:1; /* are we using nonblocking socket */
word16 saveArrays:1; /* save array Memory for user get keys
or psk */
word16 weOwnRng:1; /* will be true unless CTX owns */
word16 haveEMS:1; /* using extended master secret */
#ifdef HAVE_POLY1305
word16 oldPoly:1; /* set when to use old rfc way of poly*/
#endif
#ifdef HAVE_ANON
word16 haveAnon:1; /* User wants to allow Anon suites */
#endif
#ifdef HAVE_SESSION_TICKET
word16 createTicket:1; /* Server to create new Ticket */
word16 useTicket:1; /* Use Ticket not session cache */
word16 rejectTicket:1; /* Callback rejected ticket */
#ifdef WOLFSSL_TLS13
word16 noTicketTls13:1; /* Server won't create new Ticket */
#endif
#endif
#ifdef WOLFSSL_DTLS
word16 dtlsHsRetain:1; /* DTLS retaining HS data */
word16 haveMcast:1; /* using multicast ? */
#ifdef WOLFSSL_SCTP
word16 dtlsSctp:1; /* DTLS-over-SCTP mode */
#endif
#endif
#if defined(HAVE_TLS_EXTENSIONS) && defined(HAVE_SUPPORTED_CURVES)
word16 userCurves:1; /* indicates user called wolfSSL_UseSupportedCurve */
#endif
word16 keepResources:1; /* Keep resources after handshake */
word16 useClientOrder:1; /* Use client's cipher order */
#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH)
word16 postHandshakeAuth:1;/* Client send post_handshake_auth
* extendion. */
#endif
#if defined(WOLFSSL_TLS13) && !defined(NO_WOLFSSL_SERVER)
word16 sendCookie:1; /* Server creates a Cookie in HRR */
#endif
#ifdef WOLFSSL_ALT_CERT_CHAINS
word16 usingAltCertChain:1;/* Alternate cert chain was used */
#endif
/* need full byte values for this section */
byte processReply; /* nonblocking resume */
byte cipherSuite0; /* first byte, normally 0 */
byte cipherSuite; /* second byte, actual suite */
byte serverState;
byte clientState;
byte handShakeState;
byte handShakeDone; /* at least one handshake complete */
byte minDowngrade; /* minimum downgrade version */
byte connectState; /* nonblocking resume */
byte acceptState; /* nonblocking resume */
byte asyncState; /* sub-state for enum asyncState */
byte buildMsgState; /* sub-state for enum buildMsgState */
byte alertCount; /* detect warning dos attempt */
#ifdef WOLFSSL_MULTICAST
word16 mcastID; /* Multicast group ID */
#endif
#ifndef NO_DH
word16 minDhKeySz; /* minimum DH key size */
word16 dhKeySz; /* actual DH key size */
#endif
#ifndef NO_RSA
short minRsaKeySz; /* minimum RSA key size */
#endif
#if defined(HAVE_ECC) || defined(HAVE_ED25519)
short minEccKeySz; /* minimum ECC key size */
#endif
#ifdef OPENSSL_EXTRA
byte verifyDepth; /* maximum verification depth */
#endif
#ifdef WOLFSSL_EARLY_DATA
word32 maxEarlyDataSz;
#endif
} Options;
typedef struct Arrays {
byte* pendingMsg; /* defrag buffer */
byte* preMasterSecret;
word32 preMasterSz; /* differs for DH, actual size */
word32 pendingMsgSz; /* defrag buffer size */
word32 pendingMsgOffset; /* current offset into defrag buffer */
#if defined(HAVE_SESSION_TICKET) || !defined(NO_PSK)
word32 psk_keySz; /* actual size */
char client_identity[MAX_PSK_ID_LEN + NULL_TERM_LEN];
char server_hint[MAX_PSK_ID_LEN + NULL_TERM_LEN];
byte psk_key[MAX_PSK_KEY_LEN];
#endif
byte clientRandom[RAN_LEN];
byte serverRandom[RAN_LEN];
byte sessionID[ID_LEN];
byte sessionIDSz;
#ifdef WOLFSSL_TLS13
byte clientSecret[SECRET_LEN];
byte serverSecret[SECRET_LEN];
byte secret[SECRET_LEN];
#endif
byte masterSecret[SECRET_LEN];
#ifdef WOLFSSL_DTLS
byte cookie[MAX_COOKIE_LEN];
byte cookieSz;
#endif
byte pendingMsgType; /* defrag buffer message type */
} Arrays;
#ifndef ASN_NAME_MAX
#define ASN_NAME_MAX 256
#endif
#ifndef MAX_DATE_SZ
#define MAX_DATE_SZ 32
#endif
struct WOLFSSL_STACK {
unsigned long num; /* number of nodes in stack
* (saftey measure for freeing and shortcut for count) */
union {
WOLFSSL_X509* x509;
WOLFSSL_X509_NAME* name;
WOLFSSL_BIO* bio;
WOLFSSL_ASN1_OBJECT* obj;
char* string;
} data;
WOLFSSL_STACK* next;
};
struct WOLFSSL_X509_NAME {
char *name;
char staticName[ASN_NAME_MAX];
int dynamicName;
int sz;
#if defined(OPENSSL_EXTRA) && !defined(NO_ASN)
DecodedName fullName;
WOLFSSL_X509_NAME_ENTRY cnEntry;
WOLFSSL_X509* x509; /* x509 that struct belongs to */
#endif /* OPENSSL_EXTRA */
#ifdef WOLFSSL_NGINX
byte raw[ASN_NAME_MAX];
int rawLen;
#endif
};
#ifndef EXTERNAL_SERIAL_SIZE
#define EXTERNAL_SERIAL_SIZE 32
#endif
#ifdef NO_ASN
typedef struct DNS_entry DNS_entry;
#endif
struct WOLFSSL_X509 {
int version;
WOLFSSL_X509_NAME issuer;
WOLFSSL_X509_NAME subject;
int serialSz;
byte serial[EXTERNAL_SERIAL_SIZE];
char subjectCN[ASN_NAME_MAX]; /* common name short cut */
#ifdef WOLFSSL_SEP
int deviceTypeSz;
byte deviceType[EXTERNAL_SERIAL_SIZE];
int hwTypeSz;
byte hwType[EXTERNAL_SERIAL_SIZE];
int hwSerialNumSz;
byte hwSerialNum[EXTERNAL_SERIAL_SIZE];
#ifdef OPENSSL_EXTRA
byte certPolicySet;
byte certPolicyCrit;
#endif /* OPENSSL_EXTRA */
#endif
int notBeforeSz;
byte notBefore[MAX_DATE_SZ];
int notAfterSz;
byte notAfter[MAX_DATE_SZ];
int sigOID;
buffer sig;
int pubKeyOID;
buffer pubKey;
#ifdef HAVE_ECC
word32 pkCurveOID;
#endif /* HAVE_ECC */
#ifndef NO_CERTS
DerBuffer* derCert; /* may need */
#endif
DNS_entry* altNames; /* alt names list */
DNS_entry* altNamesNext; /* hint for retrieval */
void* heap; /* heap hint */
byte dynamicMemory; /* dynamic memory flag */
byte isCa;
#ifdef WOLFSSL_CERT_EXT
char certPolicies[MAX_CERTPOL_NB][MAX_CERTPOL_SZ];
int certPoliciesNb;
#endif /* WOLFSSL_CERT_EXT */
#ifdef OPENSSL_EXTRA
#ifdef HAVE_EX_DATA
void* ex_data[MAX_EX_DATA];
#endif
word32 pathLength;
word16 keyUsage;
byte CRLdistSet;
byte CRLdistCrit;
byte* CRLInfo;
int CRLInfoSz;
byte authInfoSet;
byte authInfoCrit;
byte* authInfo;
int authInfoSz;
byte basicConstSet;
byte basicConstCrit;
byte basicConstPlSet;
byte subjAltNameSet;
byte subjAltNameCrit;
byte authKeyIdSet;
byte authKeyIdCrit;
byte* authKeyId;
word32 authKeyIdSz;
byte subjKeyIdSet;
byte subjKeyIdCrit;
byte* subjKeyId;
word32 subjKeyIdSz;
byte keyUsageSet;
byte keyUsageCrit;
byte extKeyUsageCrit;
byte* extKeyUsageSrc;
word32 extKeyUsageSz;
word32 extKeyUsageCount;
#endif /* OPENSSL_EXTRA */
};
/* record layer header for PlainText, Compressed, and CipherText */
typedef struct RecordLayerHeader {
byte type;
byte pvMajor;
byte pvMinor;
byte length[2];
} RecordLayerHeader;
/* record layer header for DTLS PlainText, Compressed, and CipherText */
typedef struct DtlsRecordLayerHeader {
byte type;
byte pvMajor;
byte pvMinor;
byte sequence_number[8]; /* per record */
byte length[2];
} DtlsRecordLayerHeader;
typedef struct DtlsFrag {
word32 begin;
word32 end;
struct DtlsFrag* next;
} DtlsFrag;
typedef struct DtlsMsg {
struct DtlsMsg* next;
byte* buf;
byte* msg;
DtlsFrag* fragList;
word32 fragSz; /* Length of fragments received */
word32 seq; /* Handshake sequence number */
word32 sz; /* Length of whole mesage */
byte type;
} DtlsMsg;
#ifdef HAVE_NETX
/* NETX I/O Callback default */
typedef struct NetX_Ctx {
NX_TCP_SOCKET* nxSocket; /* send/recv socket handle */
NX_PACKET* nxPacket; /* incoming packet handle for short reads */
ULONG nxOffset; /* offset already read from nxPacket */
ULONG nxWait; /* wait option flag */
} NetX_Ctx;
#endif
/* Handshake messages received from peer (plus change cipher */
typedef struct MsgsReceived {
word16 got_hello_request:1;
word16 got_client_hello:2;
word16 got_server_hello:1;
word16 got_hello_verify_request:1;
word16 got_session_ticket:1;
word16 got_end_of_early_data:1;
word16 got_hello_retry_request:1;
word16 got_encrypted_extensions:1;
word16 got_certificate:1;
word16 got_certificate_status:1;
word16 got_server_key_exchange:1;
word16 got_certificate_request:1;
word16 got_server_hello_done:1;
word16 got_certificate_verify:1;
word16 got_client_key_exchange:1;
word16 got_finished:1;
word16 got_key_update:1;
word16 got_change_cipher:1;
} MsgsReceived;
/* Handshake hashes */
typedef struct HS_Hashes {
Hashes verifyHashes;
Hashes certHashes; /* for cert verify */
#ifndef NO_SHA
wc_Sha hashSha; /* sha hash of handshake msgs */
#endif
#if !defined(NO_MD5) && !defined(NO_OLD_TLS)
wc_Md5 hashMd5; /* md5 hash of handshake msgs */
#endif
#ifndef NO_SHA256
wc_Sha256 hashSha256; /* sha256 hash of handshake msgs */
#endif
#ifdef WOLFSSL_SHA384
wc_Sha384 hashSha384; /* sha384 hash of handshake msgs */
#endif
#ifdef WOLFSSL_SHA512
wc_Sha512 hashSha512; /* sha512 hash of handshake msgs */
#endif
} HS_Hashes;
#ifdef WOLFSSL_ASYNC_CRYPT
#define MAX_ASYNC_ARGS 18
typedef void (*FreeArgsCb)(struct WOLFSSL* ssl, void* pArgs);
struct WOLFSSL_ASYNC {
WC_ASYNC_DEV* dev;
FreeArgsCb freeArgs; /* function pointer to cleanup args */
word32 args[MAX_ASYNC_ARGS]; /* holder for current args */
};
#endif
#ifdef HAVE_WRITE_DUP
#define WRITE_DUP_SIDE 1
#define READ_DUP_SIDE 2
typedef struct WriteDup {
wolfSSL_Mutex dupMutex; /* reference count mutex */
int dupCount; /* reference count */
int dupErr; /* under dupMutex, pass to other side */
} WriteDup;
WOLFSSL_LOCAL void FreeWriteDup(WOLFSSL* ssl);
WOLFSSL_LOCAL int NotifyWriteSide(WOLFSSL* ssl, int err);
#endif /* HAVE_WRITE_DUP */
#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH)
typedef struct CertReqCtx CertReqCtx;
struct CertReqCtx {
CertReqCtx* next;
byte len;
byte ctx;
};
#endif
/* wolfSSL ssl type */
struct WOLFSSL {
WOLFSSL_CTX* ctx;
Suites* suites; /* only need during handshake */
Arrays* arrays;
HS_Hashes* hsHashes;
void* IOCB_ReadCtx;
void* IOCB_WriteCtx;
WC_RNG* rng;
void* verifyCbCtx; /* cert verify callback user ctx*/
VerifyCallback verifyCallback; /* cert verification callback */
void* heap; /* for user overrides */
#ifdef HAVE_WRITE_DUP
WriteDup* dupWrite; /* valid pointer indicates ON */
/* side that decrements dupCount to zero frees overall structure */
byte dupSide; /* write side or read side */
#endif
#ifdef WOLFSSL_STATIC_MEMORY
WOLFSSL_HEAP_HINT heap_hint;
#endif
#ifndef NO_HANDSHAKE_DONE_CB
HandShakeDoneCb hsDoneCb; /* notify user handshake done */
void* hsDoneCtx; /* user handshake cb context */
#endif
#ifdef WOLFSSL_ASYNC_CRYPT
struct WOLFSSL_ASYNC async;
#elif defined(WOLFSSL_NONBLOCK_OCSP)
void* nonblockarg; /* dynamic arg for handling non-block resume */
#endif
void* hsKey; /* Handshake key (RsaKey or ecc_key) allocated from heap */
word32 hsType; /* Type of Handshake key (hsKey) */
WOLFSSL_CIPHER cipher;
hmacfp hmac;
Ciphers encrypt;
Ciphers decrypt;
Buffers buffers;
WOLFSSL_SESSION session;
#ifdef HAVE_EXT_CACHE
WOLFSSL_SESSION* extSession;
#endif
WOLFSSL_ALERT_HISTORY alert_history;
int error;
int rfd; /* read file descriptor */
int wfd; /* write file descriptor */
int rflags; /* user read flags */
int wflags; /* user write flags */
word32 timeout; /* session timeout */
word32 fragOffset; /* fragment offset */
word16 curSize;
RecordLayerHeader curRL;
MsgsReceived msgsReceived; /* peer messages received */
ProtocolVersion version; /* negotiated version */
ProtocolVersion chVersion; /* client hello version */
CipherSpecs specs;
Keys keys;
Options options;
#ifdef OPENSSL_EXTRA
WOLFSSL_BIO* biord; /* socket bio read to free/close */
WOLFSSL_BIO* biowr; /* socket bio write to free/close */
unsigned long peerVerifyRet;
byte readAhead;
#ifdef HAVE_PK_CALLBACKS
void* loggingCtx; /* logging callback argument */
#endif
#endif
#ifndef NO_RSA
RsaKey* peerRsaKey;
byte peerRsaKeyPresent;
#endif
#ifdef HAVE_QSH
QSHKey* QSH_Key;
QSHKey* peerQSHKey;
QSHSecret* QSH_secret;
byte isQSH; /* is the handshake a QSH? */
byte sendQSHKeys; /* flag for if the client should sen
public keys */
byte peerQSHKeyPresent;
byte minRequest;
byte maxRequest;
byte user_set_QSHSchemes;
#endif
#ifdef WOLFSSL_TLS13
word16 namedGroup;
#endif
byte pssAlgo;
#ifdef HAVE_NTRU
word16 peerNtruKeyLen;
byte peerNtruKey[MAX_NTRU_PUB_KEY_SZ];
byte peerNtruKeyPresent;
#endif
#if defined(HAVE_ECC) || defined(HAVE_ED25519)
int eccVerifyRes;
#endif
#if defined(HAVE_ECC) || defined(HAVE_CURVE25519)
word32 ecdhCurveOID; /* curve Ecc_Sum */
ecc_key* eccTempKey; /* private ECDHE key */
byte eccTempKeyPresent; /* also holds type */
byte peerEccKeyPresent;
#endif
#ifdef HAVE_ECC
ecc_key* peerEccKey; /* peer's ECDHE key */
ecc_key* peerEccDsaKey; /* peer's ECDSA key */
word32 pkCurveOID; /* curve Ecc_Sum */
word16 eccTempKeySz; /* in octets 20 - 66 */
byte peerEccDsaKeyPresent;
#endif
#ifdef HAVE_ED25519
ed25519_key* peerEd25519Key;
byte peerEd25519KeyPresent;
#endif
#ifdef HAVE_CURVE25519
curve25519_key* peerX25519Key;
byte peerX25519KeyPresent;
#endif
#ifdef HAVE_LIBZ
z_stream c_stream; /* compression stream */
z_stream d_stream; /* decompression stream */
byte didStreamInit; /* for stream init and end */
#endif
#ifdef WOLFSSL_DTLS
int dtls_timeout_init; /* starting timeout value */
int dtls_timeout_max; /* maximum timeout value */
int dtls_timeout; /* current timeout value, changes */
word32 dtls_tx_msg_list_sz;
word32 dtls_rx_msg_list_sz;
DtlsMsg* dtls_tx_msg_list;
DtlsMsg* dtls_rx_msg_list;
void* IOCB_CookieCtx; /* gen cookie ctx */
word32 dtls_expected_rx;
wc_dtls_export dtls_export; /* export function for session */
#ifdef WOLFSSL_SCTP
word16 dtlsMtuSz;
#endif /* WOLFSSL_SCTP */
#ifdef WOLFSSL_MULTICAST
void* mcastHwCbCtx; /* Multicast highwater callback ctx */
#endif /* WOLFSSL_MULTICAST */
#ifdef WOLFSSL_DTLS_DROP_STATS
word32 macDropCount;
word32 replayDropCount;
#endif /* WOLFSSL_DTLS_DROP_STATS */
#endif /* WOLFSSL_DTLS */
#ifdef WOLFSSL_CALLBACKS
HandShakeInfo handShakeInfo; /* info saved during handshake */
TimeoutInfo timeoutInfo; /* info saved during handshake */
byte hsInfoOn; /* track handshake info */
byte toInfoOn; /* track timeout info */
#endif
#ifdef HAVE_FUZZER
CallbackFuzzer fuzzerCb; /* for testing with using fuzzer */
void* fuzzerCtx; /* user defined pointer */
#endif
#if defined(WOLFSSL_TLS13) && defined(WOLFSSL_POST_HANDSHAKE_AUTH)
CertReqCtx* certReqCtx;
#endif
#ifdef KEEP_PEER_CERT
WOLFSSL_X509 peerCert; /* X509 peer cert */
#endif
#ifdef KEEP_OUR_CERT
WOLFSSL_X509* ourCert; /* keep alive a X509 struct of cert.
points to ctx if not owned (owned
flag found in buffers.weOwnCert) */
#endif
byte keepCert; /* keep certificate after handshake */
#if defined(HAVE_EX_DATA) || defined(FORTRESS)
void* ex_data[MAX_EX_DATA]; /* external data, for Fortress */
#endif
int devId; /* async device id to use */
#ifdef HAVE_ONE_TIME_AUTH
OneTimeAuth auth;
#endif
#ifdef HAVE_TLS_EXTENSIONS
TLSX* extensions; /* RFC 6066 TLS Extensions data */
#ifdef HAVE_MAX_FRAGMENT
word16 max_fragment;
#endif
#ifdef HAVE_TRUNCATED_HMAC
byte truncated_hmac;
#endif
#ifdef HAVE_CERTIFICATE_STATUS_REQUEST
byte status_request;
#endif
#ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2
byte status_request_v2;
#endif
#if defined(HAVE_SECURE_RENEGOTIATION) \
|| defined(HAVE_SERVER_RENEGOTIATION_INFO)
SecureRenegotiation* secure_renegotiation; /* valid pointer indicates */
#endif /* user turned on */
#ifdef HAVE_ALPN
char* alpn_client_list; /* keep the client's list */
#if defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
CallbackALPNSelect alpnSelect;
void* alpnSelectArg;
#endif
#endif /* of accepted protocols */
#if !defined(NO_WOLFSSL_CLIENT) && defined(HAVE_SESSION_TICKET)
CallbackSessionTicket session_ticket_cb;
void* session_ticket_ctx;
byte expect_session_ticket;
#endif
#endif /* HAVE_TLS_EXTENSIONS */
#ifdef HAVE_OCSP
void* ocspIOCtx;
#ifdef OPENSSL_EXTRA
byte* ocspResp;
int ocspRespSz;
#if defined(WOLFSSL_NGINX) || defined(WOLFSSL_HAPROXY)
char* url;
#endif
#endif
#endif
#ifdef HAVE_NETX
NetX_Ctx nxCtx; /* NetX IO Context */
#endif
#ifdef SESSION_INDEX
int sessionIndex; /* Session's location in the cache. */
#endif
#ifdef ATOMIC_USER
void* MacEncryptCtx; /* Atomic User Mac/Encrypt Callback Context */
void* DecryptVerifyCtx; /* Atomic User Decrypt/Verify Callback Context */
#endif
#ifdef HAVE_PK_CALLBACKS
#ifdef HAVE_ECC
void* EccSignCtx; /* Ecc Sign Callback Context */
void* EccVerifyCtx; /* Ecc Verify Callback Context */
void* EccSharedSecretCtx; /* Ecc Pms Callback Context */
#ifdef HAVE_ED25519
void* Ed25519SignCtx; /* ED25519 Sign Callback Context */
void* Ed25519VerifyCtx; /* ED25519 Verify Callback Context */
#endif
#ifdef HAVE_CURVE25519
void* X25519SharedSecretCtx; /* X25519 Pms Callback Context */
#endif
#endif /* HAVE_ECC */
#ifndef NO_RSA
void* RsaSignCtx; /* Rsa Sign Callback Context */
void* RsaVerifyCtx; /* Rsa Verify Callback Context */
#ifdef WC_RSA_PSS
void* RsaPssSignCtx; /* Rsa PSS Sign Callback Context */
void* RsaPssVerifyCtx; /* Rsa PSS Verify Callback Context */
#endif
void* RsaEncCtx; /* Rsa Public Encrypt Callback Context */
void* RsaDecCtx; /* Rsa Private Decrypt Callback Context */
#endif /* NO_RSA */
#endif /* HAVE_PK_CALLBACKS */
#ifdef HAVE_SECRET_CALLBACK
SessionSecretCb sessionSecretCb;
void* sessionSecretCtx;
#endif /* HAVE_SECRET_CALLBACK */
#ifdef WOLFSSL_JNI
void* jObjectRef; /* reference to WolfSSLSession in JNI wrapper */
#endif /* WOLFSSL_JNI */
#ifdef WOLFSSL_EARLY_DATA
int earlyData;
word32 earlyDataSz;
#endif
};
WOLFSSL_LOCAL
int SetSSL_CTX(WOLFSSL*, WOLFSSL_CTX*, int);
WOLFSSL_LOCAL
int InitSSL(WOLFSSL*, WOLFSSL_CTX*, int);
WOLFSSL_LOCAL
void FreeSSL(WOLFSSL*, void* heap);
WOLFSSL_API void SSL_ResourceFree(WOLFSSL*); /* Micrium uses */
enum {
IV_SZ = 32, /* max iv sz */
NAME_SZ = 80 /* max one line */
};
typedef struct EncryptedInfo {
char name[NAME_SZ]; /* encryption name */
byte iv[IV_SZ]; /* encrypted IV */
word32 ivSz; /* encrypted IV size */
long consumed; /* tracks PEM bytes consumed */
byte set; /* if encryption set */
WOLFSSL_CTX* ctx; /* CTX owner */
} EncryptedInfo;
#ifndef NO_CERTS
WOLFSSL_LOCAL int AllocDer(DerBuffer** der, word32 length, int type, void* heap);
WOLFSSL_LOCAL void FreeDer(DerBuffer** der);
WOLFSSL_LOCAL int PemToDer(const unsigned char* buff, long sz, int type,
DerBuffer** pDer, void* heap, EncryptedInfo* info,
int* eccKey);
WOLFSSL_LOCAL int ProcessBuffer(WOLFSSL_CTX* ctx, const unsigned char* buff,
long sz, int format, int type, WOLFSSL* ssl,
long* used, int userChain);
WOLFSSL_LOCAL int ProcessFile(WOLFSSL_CTX* ctx, const char* fname, int format,
int type, WOLFSSL* ssl, int userChain,
WOLFSSL_CRL* crl);
#ifdef OPENSSL_EXTRA
WOLFSSL_LOCAL int CheckHostName(DecodedCert* dCert, char *domainName,
size_t domainNameLen);
#endif
#endif
#ifdef WOLFSSL_CALLBACKS
WOLFSSL_LOCAL
void InitHandShakeInfo(HandShakeInfo*, WOLFSSL*);
WOLFSSL_LOCAL
void FinishHandShakeInfo(HandShakeInfo*);
WOLFSSL_LOCAL
void AddPacketName(const char*, HandShakeInfo*);
WOLFSSL_LOCAL
void InitTimeoutInfo(TimeoutInfo*);
WOLFSSL_LOCAL
void FreeTimeoutInfo(TimeoutInfo*, void*);
WOLFSSL_LOCAL
void AddPacketInfo(const char*, TimeoutInfo*, const byte*, int, void*);
WOLFSSL_LOCAL
void AddLateName(const char*, TimeoutInfo*);
WOLFSSL_LOCAL
void AddLateRecordHeader(const RecordLayerHeader* rl, TimeoutInfo* info);
#endif
/* Record Layer Header identifier from page 12 */
enum ContentType {
no_type = 0,
change_cipher_spec = 20,
alert = 21,
handshake = 22,
application_data = 23
};
/* handshake header, same for each message type, pgs 20/21 */
typedef struct HandShakeHeader {
byte type;
word24 length;
} HandShakeHeader;
/* DTLS handshake header, same for each message type */
typedef struct DtlsHandShakeHeader {
byte type;
word24 length;
byte message_seq[2]; /* start at 0, retransmit gets same # */
word24 fragment_offset; /* bytes in previous fragments */
word24 fragment_length; /* length of this fragment */
} DtlsHandShakeHeader;
enum HandShakeType {
hello_request = 0,
client_hello = 1,
server_hello = 2,
hello_verify_request = 3, /* DTLS addition */
session_ticket = 4,
end_of_early_data = 5,
hello_retry_request = 6,
encrypted_extensions = 8,
certificate = 11,
server_key_exchange = 12,
certificate_request = 13,
server_hello_done = 14,
certificate_verify = 15,
client_key_exchange = 16,
finished = 20,
certificate_status = 22,
key_update = 24,
change_cipher_hs = 55, /* simulate unique handshake type for sanity
checks. record layer change_cipher
conflicts with handshake finished */
message_hash = 254, /* synthetic message type for TLS v1.3 */
no_shake = 255 /* used to initialize the DtlsMsg record */
};
enum ProvisionSide {
PROVISION_CLIENT = 1,
PROVISION_SERVER = 2,
PROVISION_CLIENT_SERVER = 3
};
static const byte client[SIZEOF_SENDER] = { 0x43, 0x4C, 0x4E, 0x54 };
static const byte server[SIZEOF_SENDER] = { 0x53, 0x52, 0x56, 0x52 };
static const byte tls_client[FINISHED_LABEL_SZ + 1] = "client finished";
static const byte tls_server[FINISHED_LABEL_SZ + 1] = "server finished";
/* internal functions */
WOLFSSL_LOCAL int SendChangeCipher(WOLFSSL*);
WOLFSSL_LOCAL int SendTicket(WOLFSSL*);
WOLFSSL_LOCAL int DoClientTicket(WOLFSSL*, const byte*, word32);
WOLFSSL_LOCAL int SendData(WOLFSSL*, const void*, int);
#ifdef WOLFSSL_TLS13
WOLFSSL_LOCAL int SendTls13HelloRetryRequest(WOLFSSL*);
#endif
WOLFSSL_LOCAL int SendCertificate(WOLFSSL*);
WOLFSSL_LOCAL int SendCertificateRequest(WOLFSSL*);
WOLFSSL_LOCAL int SendCertificateStatus(WOLFSSL*);
WOLFSSL_LOCAL int SendServerKeyExchange(WOLFSSL*);
WOLFSSL_LOCAL int SendBuffered(WOLFSSL*);
WOLFSSL_LOCAL int ReceiveData(WOLFSSL*, byte*, int, int);
WOLFSSL_LOCAL int SendFinished(WOLFSSL*);
WOLFSSL_LOCAL int SendAlert(WOLFSSL*, int, int);
WOLFSSL_LOCAL int ProcessReply(WOLFSSL*);
WOLFSSL_LOCAL int SetCipherSpecs(WOLFSSL*);
WOLFSSL_LOCAL int MakeMasterSecret(WOLFSSL*);
WOLFSSL_LOCAL int AddSession(WOLFSSL*);
WOLFSSL_LOCAL int DeriveKeys(WOLFSSL* ssl);
WOLFSSL_LOCAL int StoreKeys(WOLFSSL* ssl, const byte* keyData, int side);
WOLFSSL_LOCAL int IsTLS(const WOLFSSL* ssl);
WOLFSSL_LOCAL int IsAtLeastTLSv1_2(const WOLFSSL* ssl);
WOLFSSL_LOCAL int IsAtLeastTLSv1_3(const ProtocolVersion pv);
WOLFSSL_LOCAL void FreeHandshakeResources(WOLFSSL* ssl);
WOLFSSL_LOCAL void ShrinkInputBuffer(WOLFSSL* ssl, int forcedFree);
WOLFSSL_LOCAL void ShrinkOutputBuffer(WOLFSSL* ssl);
WOLFSSL_LOCAL int VerifyClientSuite(WOLFSSL* ssl);
WOLFSSL_LOCAL int SetTicket(WOLFSSL*, const byte*, word32);
#ifndef NO_CERTS
#ifndef NO_RSA
#ifdef WC_RSA_PSS
WOLFSSL_LOCAL int CheckRsaPssPadding(const byte* plain, word32 plainSz,
byte* out, word32 sigSz,
enum wc_HashType hashType);
WOLFSSL_LOCAL int ConvertHashPss(int hashAlgo, enum wc_HashType* hashType, int* mgf);
#endif
WOLFSSL_LOCAL int VerifyRsaSign(WOLFSSL* ssl,
byte* verifySig, word32 sigSz,
const byte* plain, word32 plainSz,
int sigAlgo, int hashAlgo,
RsaKey* key);
WOLFSSL_LOCAL int RsaSign(WOLFSSL* ssl, const byte* in, word32 inSz,
byte* out, word32* outSz, int sigAlgo, int hashAlgo, RsaKey* key,
const byte* keyBuf, word32 keySz, void* ctx);
WOLFSSL_LOCAL int RsaVerify(WOLFSSL* ssl, byte* in, word32 inSz,
byte** out, int sigAlgo, int hashAlgo, RsaKey* key,
const byte* keyBuf, word32 keySz, void* ctx);
WOLFSSL_LOCAL int RsaDec(WOLFSSL* ssl, byte* in, word32 inSz, byte** out,
word32* outSz, RsaKey* key, const byte* keyBuf, word32 keySz, void* ctx);
WOLFSSL_LOCAL int RsaEnc(WOLFSSL* ssl, const byte* in, word32 inSz, byte* out,
word32* outSz, RsaKey* key, const byte* keyBuf, word32 keySz, void* ctx);
#endif /* !NO_RSA */
#ifdef HAVE_ECC
WOLFSSL_LOCAL int EccSign(WOLFSSL* ssl, const byte* in, word32 inSz,
byte* out, word32* outSz, ecc_key* key, byte* keyBuf, word32 keySz,
void* ctx);
WOLFSSL_LOCAL int EccVerify(WOLFSSL* ssl, const byte* in, word32 inSz,
const byte* out, word32 outSz, ecc_key* key, byte* keyBuf, word32 keySz,
void* ctx);
WOLFSSL_LOCAL int EccSharedSecret(WOLFSSL* ssl, ecc_key* priv_key,
ecc_key* pub_key, byte* pubKeyDer, word32* pubKeySz, byte* out,
word32* outlen, int side, void* ctx);
#endif /* HAVE_ECC */
#ifdef HAVE_ED25519
WOLFSSL_LOCAL int Ed25519Sign(WOLFSSL* ssl, const byte* in, word32 inSz,
byte* out, word32* outSz, ed25519_key* key, byte* keyBuf,
word32 keySz, void* ctx);
WOLFSSL_LOCAL int Ed25519Verify(WOLFSSL* ssl, const byte* in,
word32 inSz, const byte* msg, word32 msgSz, ed25519_key* key,
byte* keyBuf, word32 keySz, void* ctx);
#endif /* HAVE_ED25519 */
#ifdef WOLFSSL_TRUST_PEER_CERT
/* options for searching hash table for a matching trusted peer cert */
#define WC_MATCH_SKID 0
#define WC_MATCH_NAME 1
WOLFSSL_LOCAL TrustedPeerCert* GetTrustedPeer(void* vp, byte* hash,
int type);
WOLFSSL_LOCAL int MatchTrustedPeer(TrustedPeerCert* tp,
DecodedCert* cert);
#endif
WOLFSSL_LOCAL Signer* GetCA(void* cm, byte* hash);
#ifndef NO_SKID
WOLFSSL_LOCAL Signer* GetCAByName(void* cm, byte* hash);
#endif
#endif /* !NO_CERTS */
WOLFSSL_LOCAL int BuildTlsHandshakeHash(WOLFSSL* ssl, byte* hash,
word32* hashLen);
WOLFSSL_LOCAL int BuildTlsFinished(WOLFSSL* ssl, Hashes* hashes,
const byte* sender);
WOLFSSL_LOCAL void FreeArrays(WOLFSSL* ssl, int keep);
WOLFSSL_LOCAL int CheckAvailableSize(WOLFSSL *ssl, int size);
WOLFSSL_LOCAL int GrowInputBuffer(WOLFSSL* ssl, int size, int usedLength);
#ifndef NO_TLS
WOLFSSL_LOCAL int MakeTlsMasterSecret(WOLFSSL*);
WOLFSSL_LOCAL int TLS_hmac(WOLFSSL* ssl, byte* digest, const byte* in,
word32 sz, int content, int verify);
#endif
#ifndef NO_WOLFSSL_CLIENT
WOLFSSL_LOCAL int SendClientHello(WOLFSSL*);
#ifdef WOLFSSL_TLS13
WOLFSSL_LOCAL int SendTls13ClientHello(WOLFSSL*);
#endif
WOLFSSL_LOCAL int SendClientKeyExchange(WOLFSSL*);
WOLFSSL_LOCAL int SendCertificateVerify(WOLFSSL*);
#endif /* NO_WOLFSSL_CLIENT */
#ifndef NO_WOLFSSL_SERVER
WOLFSSL_LOCAL int SendServerHello(WOLFSSL*);
WOLFSSL_LOCAL int SendServerHelloDone(WOLFSSL*);
#endif /* NO_WOLFSSL_SERVER */
#ifdef WOLFSSL_DTLS
WOLFSSL_LOCAL DtlsMsg* DtlsMsgNew(word32, void*);
WOLFSSL_LOCAL void DtlsMsgDelete(DtlsMsg*, void*);
WOLFSSL_LOCAL void DtlsMsgListDelete(DtlsMsg*, void*);
WOLFSSL_LOCAL int DtlsMsgSet(DtlsMsg*, word32, const byte*, byte,
word32, word32, void*);
WOLFSSL_LOCAL DtlsMsg* DtlsMsgFind(DtlsMsg*, word32);
WOLFSSL_LOCAL void DtlsMsgStore(WOLFSSL*, word32, const byte*, word32,
byte, word32, word32, void*);
WOLFSSL_LOCAL DtlsMsg* DtlsMsgInsert(DtlsMsg*, DtlsMsg*);
WOLFSSL_LOCAL int DtlsMsgPoolSave(WOLFSSL*, const byte*, word32);
WOLFSSL_LOCAL int DtlsMsgPoolTimeout(WOLFSSL*);
WOLFSSL_LOCAL int VerifyForDtlsMsgPoolSend(WOLFSSL*, byte, word32);
WOLFSSL_LOCAL void DtlsMsgPoolReset(WOLFSSL*);
WOLFSSL_LOCAL int DtlsMsgPoolSend(WOLFSSL*, int);
#endif /* WOLFSSL_DTLS */
#ifndef NO_TLS
#endif /* NO_TLS */
#if defined(WOLFSSL_TLS13) && (defined(HAVE_SESSION_TICKET) || !defined(NO_PSK))
WOLFSSL_LOCAL word32 TimeNowInMilliseconds(void);
#endif
WOLFSSL_LOCAL word32 LowResTimer(void);
#ifndef NO_CERTS
WOLFSSL_LOCAL void InitX509Name(WOLFSSL_X509_NAME*, int);
WOLFSSL_LOCAL void FreeX509Name(WOLFSSL_X509_NAME* name, void* heap);
WOLFSSL_LOCAL void InitX509(WOLFSSL_X509*, int, void* heap);
WOLFSSL_LOCAL void FreeX509(WOLFSSL_X509*);
WOLFSSL_LOCAL int CopyDecodedToX509(WOLFSSL_X509*, DecodedCert*);
#endif
WOLFSSL_LOCAL const char* const* GetCipherNames(void);
WOLFSSL_LOCAL int GetCipherNamesSize(void);
WOLFSSL_LOCAL const char* GetCipherNameInternal(const char* cipherName, int cipherSuite);
WOLFSSL_LOCAL const char* wolfSSL_get_cipher_name_internal(WOLFSSL* ssl);
WOLFSSL_LOCAL const char* wolfSSL_get_cipher_name_from_suite(
const unsigned char cipherSuite, const unsigned char cipherSuite0);
enum encrypt_side {
ENCRYPT_SIDE_ONLY = 1,
DECRYPT_SIDE_ONLY,
ENCRYPT_AND_DECRYPT_SIDE
};
WOLFSSL_LOCAL int SetKeysSide(WOLFSSL*, enum encrypt_side);
#ifndef NO_DH
WOLFSSL_LOCAL int DhGenKeyPair(WOLFSSL* ssl, DhKey* dhKey,
byte* priv, word32* privSz,
byte* pub, word32* pubSz);
WOLFSSL_LOCAL int DhAgree(WOLFSSL* ssl, DhKey* dhKey,
const byte* priv, word32 privSz,
const byte* otherPub, word32 otherPubSz,
byte* agree, word32* agreeSz);
#endif /* !NO_DH */
#ifdef HAVE_ECC
WOLFSSL_LOCAL int EccMakeKey(WOLFSSL* ssl, ecc_key* key, ecc_key* peer);
#endif
WOLFSSL_LOCAL int InitHandshakeHashes(WOLFSSL* ssl);
WOLFSSL_LOCAL void FreeHandshakeHashes(WOLFSSL* ssl);
WOLFSSL_LOCAL int BuildMessage(WOLFSSL* ssl, byte* output, int outSz,
const byte* input, int inSz, int type, int hashOutput,
int sizeOnly, int asyncOkay);
#ifdef WOLFSSL_TLS13
int BuildTls13Message(WOLFSSL* ssl, byte* output, int outSz, const byte* input,
int inSz, int type, int hashOutput, int sizeOnly, int asyncOkay);
#endif
WOLFSSL_LOCAL int AllocKey(WOLFSSL* ssl, int type, void** pKey);
WOLFSSL_LOCAL void FreeKey(WOLFSSL* ssl, int type, void** pKey);
#ifdef WOLFSSL_ASYNC_CRYPT
WOLFSSL_LOCAL int wolfSSL_AsyncInit(WOLFSSL* ssl, WC_ASYNC_DEV* asyncDev, word32 flags);
WOLFSSL_LOCAL int wolfSSL_AsyncPop(WOLFSSL* ssl, byte* state);
WOLFSSL_LOCAL int wolfSSL_AsyncPush(WOLFSSL* ssl, WC_ASYNC_DEV* asyncDev);
#endif
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* wolfSSL_INT_H */
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