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wolfssl/cyassl/internal.h
toddouska 11d81b86de change windows low res timer return
2013-04-22 10:52:38 -07:00

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/* internal.h
*
* Copyright (C) 2006-2013 wolfSSL Inc.
*
* This file is part of CyaSSL.
*
* CyaSSL 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.
*
* CyaSSL 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef CYASSL_INT_H
#define CYASSL_INT_H
#include <cyassl/ctaocrypt/types.h>
#include <cyassl/ssl.h>
#include <cyassl/crl.h>
#include <cyassl/ctaocrypt/random.h>
#include <cyassl/ctaocrypt/des3.h>
#include <cyassl/ctaocrypt/hc128.h>
#include <cyassl/ctaocrypt/rabbit.h>
#include <cyassl/ctaocrypt/asn.h>
#include <cyassl/ctaocrypt/md5.h>
#include <cyassl/ctaocrypt/sha.h>
#include <cyassl/ctaocrypt/aes.h>
#include <cyassl/ctaocrypt/camellia.h>
#include <cyassl/ctaocrypt/logging.h>
#ifndef NO_RC4
#include <cyassl/ctaocrypt/arc4.h>
#endif
#ifdef HAVE_ECC
#include <cyassl/ctaocrypt/ecc.h>
#endif
#ifndef NO_SHA256
#include <cyassl/ctaocrypt/sha256.h>
#endif
#ifdef HAVE_OCSP
#include <cyassl/ocsp.h>
#endif
#ifdef CYASSL_SHA512
#include <cyassl/ctaocrypt/sha512.h>
#endif
#ifdef CYASSL_RIPEMD
#include <cyassl/ctaocrypt/ripemd.h>
#endif
#ifdef CYASSL_CALLBACKS
#include <cyassl/callbacks.h>
#include <signal.h>
#endif
#ifdef USE_WINDOWS_API
#ifdef CYASSL_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(CYASSL_SAFERTOS)
/* do nothing */
#elif defined(EBSNET)
/* do nothing */
#elif defined(FREESCALE_MQX)
/* do nothing */
#else
#ifndef SINGLE_THREADED
#define CYASSL_PTHREADS
#include <pthread.h>
#endif
#if defined(OPENSSL_EXTRA) || defined(GOAHEAD_WS)
#include <unistd.h> /* for close of BIO */
#endif
#endif
#ifdef HAVE_LIBZ
#include "zlib.h"
#endif
#ifdef _MSC_VER
/* 4996 warning to use MS extensions e.g., strcpy_s instead of strncpy */
#pragma warning(disable: 4996)
#endif
#ifdef NO_AES
#if !defined (ALIGN16)
#define ALIGN16
#endif
#endif
#ifdef NO_SHA
#define SHA_DIGEST_SIZE 20
#endif
#ifdef NO_SHA256
#define SHA256_DIGEST_SIZE 32
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef USE_WINDOWS_API
typedef unsigned int SOCKET_T;
#else
typedef int SOCKET_T;
#endif
typedef byte word24[3];
/* used by ssl.c and cyassl_int.c */
void c32to24(word32 in, word24 out);
/* 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
*/
#if !defined(NO_RSA) && !defined(NO_RC4)
#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
#if !defined(NO_TLS) && defined(HAVE_NTRU) && !defined(NO_SHA)
#define BUILD_TLS_NTRU_RSA_WITH_RC4_128_SHA
#endif
#endif
#if !defined(NO_RSA) && !defined(NO_DES3)
#if !defined(NO_SHA)
#define BUILD_SSL_RSA_WITH_3DES_EDE_CBC_SHA
#if !defined(NO_TLS) && defined(HAVE_NTRU)
#define BUILD_TLS_NTRU_RSA_WITH_3DES_EDE_CBC_SHA
#endif
#endif
#endif
#if !defined(NO_RSA) && !defined(NO_AES) && !defined(NO_TLS)
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_RSA_WITH_AES_256_CBC_SHA
#if defined(HAVE_NTRU)
#define BUILD_TLS_NTRU_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_NTRU_RSA_WITH_AES_256_CBC_SHA
#endif
#endif
#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 (CYASSL_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
#endif
#if defined(HAVE_CAMELLIA) && !defined(NO_TLS)
#ifndef NO_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
#if !defined(NO_DH) && defined(OPENSSL_EXTRA)
#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(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_AESCCM
#define BUILD_TLS_PSK_WITH_AES_128_CCM_8
#define BUILD_TLS_PSK_WITH_AES_256_CCM_8
#endif
#endif
#endif
#if !defined(NO_TLS) && defined(HAVE_NULL_CIPHER)
#if !defined(NO_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
#if !defined(NO_PSK)
#if !defined(NO_SHA)
#define BUILD_TLS_PSK_WITH_NULL_SHA
#endif
#ifndef NO_SHA256
#define BUILD_TLS_PSK_WITH_NULL_SHA256
#endif
#endif
#endif
#if !defined(NO_HC128) && !defined(NO_RSA) && !defined(NO_TLS)
#define BUILD_TLS_RSA_WITH_HC_128_CBC_MD5
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_HC_128_CBC_SHA
#endif
#endif
#if !defined(NO_RABBIT) && !defined(NO_TLS) && !defined(NO_RSA)
#if !defined(NO_SHA)
#define BUILD_TLS_RSA_WITH_RABBIT_CBC_SHA
#endif
#endif
#if !defined(NO_DH) && !defined(NO_AES) && !defined(NO_TLS) && \
!defined(NO_RSA) && defined(OPENSSL_EXTRA)
#if !defined(NO_SHA)
#define BUILD_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
#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
#if defined (HAVE_AESGCM)
#define BUILD_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
#if defined (CYASSL_SHA384)
#define BUILD_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
#endif
#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
#define BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
#endif /* NO_SHA */
#ifndef NO_SHA256
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
#define BUILD_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
#endif
#ifdef CYASSL_SHA384
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
#define BUILD_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
#endif
#if defined (HAVE_AESGCM)
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
#define BUILD_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
#if defined(CYASSL_SHA384)
#define BUILD_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
#define BUILD_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
#if defined(CYASS_SHA384)
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
#define BUILD_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
#endif
#endif
#if defined (HAVE_AESCCM)
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8
#define BUILD_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
#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
#define BUILD_TLS_ECDH_RSA_WITH_RC4_128_SHA
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
#define BUILD_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
#endif
#endif
#if !defined(NO_DES3)
#if !defined(NO_RSA)
#define BUILD_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
#define BUILD_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
#endif
#define BUILD_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
#define BUILD_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
#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_GCM_SHA256)
#undef BUILD_AES
#define BUILD_AES
#endif
#if defined(BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256) || \
defined(BUILD_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256)
#define BUILD_AESGCM
#endif
#if defined(BUILD_TLS_RSA_WITH_HC_128_CBC_SHA) || \
defined(BUILD_TLS_RSA_WITH_HC_128_CBC_MD5)
#define BUILD_HC128
#endif
#if defined(BUILD_TLS_RSA_WITH_RABBIT_CBC_SHA)
#define BUILD_RABBIT
#endif
#ifdef NO_DES3
#define DES_BLOCK_SIZE 8
#else
#undef BUILD_DES3
#define BUILD_DES3
#endif
#ifdef NO_AES
#define AES_BLOCK_SIZE 16
#else
#undef BUILD_AES
#define BUILD_AES
#endif
#ifndef NO_RC4
#undef BUILD_ARC4
#define BUILD_ARC4
#endif
#if defined(BUILD_AESGCM) || defined(HAVE_AESCCM)
#define HAVE_AEAD
#endif
/* actual cipher values, 2nd byte */
enum {
TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x39,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x33,
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_128_CBC_SHA = 0x8c,
TLS_PSK_WITH_NULL_SHA256 = 0xb0,
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,
/* 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,
/* 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,
/* CyaSSL extension - eSTREAM */
TLS_RSA_WITH_HC_128_CBC_MD5 = 0xFB,
TLS_RSA_WITH_HC_128_CBC_SHA = 0xFC,
TLS_RSA_WITH_RABBIT_CBC_SHA = 0xFD,
/* CyaSSL 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, /* clases w/ official SHA-256 */
TLS_NTRU_RSA_WITH_AES_256_CBC_SHA = 0xe8,
/* 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,
/* 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,
/* 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_8 = 0xc6, /* Still TBD, made up */
TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8 = 0xc7, /* Still TBD, made up */
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_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
};
#if defined(CYASSL_SHA384)
#define MAX_DIGEST_SIZE SHA384_DIGEST_SIZE
#elif !defined(NO_SHA256)
#define MAX_DIGEST_SIZE SHA256_DIGEST_SIZE
#elif !defined(NO_MD5) && !defined(NO_SHA)
#define MAX_DIGEST_SIZE (SHA_DIGEST_SIZE + MD5_DIGEST_SIZE)
#else
#error "You have configured the build so there isn't any hashing."
#endif
enum Misc {
SERVER_END = 0,
CLIENT_END,
ECC_BYTE = 0xC0, /* ECC first cipher suite byte */
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 */
INVALID_BYTE = 0xff, /* Used to initialize cipher specs values */
NO_COMPRESSION = 0,
ZLIB_COMPRESSION = 221, /* CyaSSL zlib compression */
HELLO_EXT_SIG_ALGO = 13, /* ID for the sig_algo hello extension */
SECRET_LEN = 48, /* pre RSA and all master */
ENCRYPT_LEN = 512, /* allow 4096 bit static buffer */
SIZEOF_SENDER = 4, /* clnt or srvr */
FINISHED_SZ = 36, /* MD5_DIGEST_SIZE + 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 = 1500, /* max expected MTU */
MAX_UDP_SIZE = MAX_MTU - 100, /* don't exceed MTU w/ 100 byte header */
MAX_DH_SZ = 612, /* 2240 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 */
BYTE3_LEN = 3, /* up to 24 bit byte lengths */
ALERT_SIZE = 2, /* level + description */
REQUEST_HEADER = 2, /* always use 2 bytes */
VERIFY_HEADER = 2, /* always use 2 bytes */
EXT_ID_SZ = 2, /* always use 2 bytes */
MAX_DH_SIZE = 513, /* 4096 bit plus possible leading 0 */
MAX_SUITE_SZ = 200, /* 100 suites for now! */
RAN_LEN = 32, /* random length */
SEED_LEN = RAN_LEN * 2, /* tls prf seed length */
ID_LEN = 32, /* session id length */
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 */
COMP_LEN = 1, /* compression length */
CURVE_LEN = 2, /* ecc named curve 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 */
HELLO_EXT_SZ = 8, /* total length of the lazy hello extensions */
HELLO_EXT_LEN = 6, /* length of the lazy hello extensions */
HELLO_EXT_SIGALGO_SZ = 2, /* length of signature algo extension */
HELLO_EXT_SIGALGO_MAX = 32, /* number of items in the signature algo 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 = 5, /* buffers to hold in the retry pool */
FINISHED_LABEL_SZ = 15, /* TLS finished label size */
TLS_FINISHED_SZ = 12, /* TLS has a shorter size */
MASTER_LABEL_SZ = 13, /* TLS master secret label sz */
KEY_LABEL_SZ = 13, /* TLS key block expansion sz */
MAX_PRF_HALF = 128, /* Maximum half secret len */
MAX_PRF_LABSEED = 128, /* Maximum label + seed len */
MAX_PRF_DIG = 224, /* Maximum digest len */
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_IMP_IV_SZ = 4, /* Size of the implicit IV */
AEAD_EXP_IV_SZ = 8, /* Size of the explicit IV */
AEAD_NONCE_SZ = AEAD_EXP_IV_SZ + AEAD_IMP_IV_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 */
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 */
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_HELLO_SZ = 128, /* max client or server hello */
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 */
DEFAULT_TIMEOUT = 500, /* default resumption timeout in seconds */
DTLS_DEFAULT_TIMEOUT = 1, /* default timeout for DTLS receive */
MAX_PSK_ID_LEN = 128, /* max psk identity/hint supported */
MAX_PSK_KEY_LEN = 64, /* max psk key supported */
MAX_CYASSL_FILE_SIZE = 1024 * 1024 * 4, /* 4 mb file size alloc limit */
#ifdef FORTRESS
MAX_EX_DATA = 3, /* allow for three 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 */
MAX_FILENAME_SZ = 256, /* max file name length */
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_CAVIUM_DEVICE = -2, /* invalid cavium device id */
NO_COPY = 0, /* should we copy static buffer for write */
COPY = 1 /* should we copy static buffer for write */
};
/* max cert chain peer depth */
#ifndef MAX_CHAIN_DEPTH
#define MAX_CHAIN_DEPTH 9
#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_CERT_COMPLETE,
SERVER_KEYEXCHANGE_COMPLETE,
SERVER_HELLODONE_COMPLETE,
SERVER_FINISHED_COMPLETE,
CLIENT_HELLO_COMPLETE,
CLIENT_KEYEXCHANGE_COMPLETE,
CLIENT_FINISHED_COMPLETE,
HANDSHAKE_DONE
};
#if defined(__GNUC__)
#define CYASSL_PACK __attribute__ ((packed))
#else
#define CYASSL_PACK
#endif
/* SSL Version */
typedef struct ProtocolVersion {
byte major;
byte minor;
} CYASSL_PACK ProtocolVersion;
CYASSL_LOCAL ProtocolVersion MakeSSLv3(void);
CYASSL_LOCAL ProtocolVersion MakeTLSv1(void);
CYASSL_LOCAL ProtocolVersion MakeTLSv1_1(void);
CYASSL_LOCAL ProtocolVersion MakeTLSv1_2(void);
#ifdef CYASSL_DTLS
CYASSL_LOCAL ProtocolVersion MakeDTLSv1(void);
CYASSL_LOCAL ProtocolVersion MakeDTLSv1_2(void);
#endif
enum BIO_TYPE {
BIO_BUFFER = 1,
BIO_SOCKET = 2,
BIO_SSL = 3,
BIO_MEMORY = 4
};
/* CyaSSL BIO_METHOD type */
struct CYASSL_BIO_METHOD {
byte type; /* method type */
};
/* CyaSSL BIO type */
struct CYASSL_BIO {
byte type; /* method type */
byte close; /* close flag */
byte eof; /* eof flag */
CYASSL* ssl; /* possible associated ssl */
byte* mem; /* memory buffer */
int memLen; /* memory buffer length */
int fd; /* possible file descriptor */
CYASSL_BIO* prev; /* previous in chain */
CYASSL_BIO* next; /* next in chain */
};
/* CyaSSL method type */
struct CYASSL_METHOD {
ProtocolVersion version;
byte side; /* connection side, server or client */
byte downgrade; /* whether to downgrade version, default no */
};
/* defautls to client */
CYASSL_LOCAL void InitSSL_Method(CYASSL_METHOD*, ProtocolVersion);
/* for sniffer */
CYASSL_LOCAL int DoFinished(CYASSL* ssl, const byte* input, word32* inOutIdx,
int sniff);
CYASSL_LOCAL int DoApplicationData(CYASSL* ssl, byte* input, word32* inOutIdx);
/* CyaSSL buffer type */
typedef struct buffer {
word32 length;
byte* buffer;
} buffer;
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 CYASSL_SNIFFER
#define MTU_EXTRA MAX_MTU * 3
#else
#define MTU_EXTRA 0
#endif
/* give user option to use 16K static buffers */
#if defined(LARGE_STATIC_BUFFERS)
#define RECORD_SIZE MAX_RECORD_SIZE
#else
#ifdef CYASSL_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 chuncks */
#ifndef STATIC_CHUNKS_ONLY
#define OUTPUT_RECORD_SIZE MAX_RECORD_SIZE
#else
#define OUTPUT_RECORD_SIZE RECORD_SIZE
#endif
/* CyaSSL 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
/* zero length arrays may not be supported */
#define STATIC_BUFFER_LEN 1
#endif
typedef struct {
word32 length; /* total buffer length used */
word32 idx; /* idx to part of length already consumed */
byte* buffer; /* place holder for static or dynamic buffer */
word32 bufferSize; /* current buffer size */
ALIGN16 byte staticBuffer[STATIC_BUFFER_LEN];
byte dynamicFlag; /* dynamic memory currently in use */
byte offset; /* alignment offset attempt */
} bufferStatic;
/* Cipher Suites holder */
typedef struct Suites {
int setSuites; /* user set suites from default */
byte suites[MAX_SUITE_SZ];
word16 suiteSz; /* suite length in bytes */
byte hashSigAlgo[HELLO_EXT_SIGALGO_MAX]; /* sig/algo to offer */
word16 hashSigAlgoSz; /* SigAlgo extension length in bytes */
byte hashAlgo; /* selected hash algorithm */
byte sigAlgo; /* selected sig algorithm */
} Suites;
CYASSL_LOCAL
void InitSuites(Suites*, ProtocolVersion,
byte, byte, byte, byte, byte, byte, int);
CYASSL_LOCAL
int SetCipherList(Suites*, const char* list);
#ifndef PSK_TYPES_DEFINED
typedef unsigned int (*psk_client_callback)(CYASSL*, const char*, char*,
unsigned int, unsigned char*, unsigned int);
typedef unsigned int (*psk_server_callback)(CYASSL*, const char*,
unsigned char*, unsigned int);
#endif /* PSK_TYPES_DEFINED */
#ifndef CYASSL_USER_IO
/* default IO callbacks */
CYASSL_LOCAL
int EmbedReceive(CYASSL *ssl, char *buf, int sz, void *ctx);
CYASSL_LOCAL
int EmbedSend(CYASSL *ssl, char *buf, int sz, void *ctx);
#ifdef HAVE_OCSP
CYASSL_LOCAL
int EmbedOcspLookup(void*, const char*, int, byte*, int, byte**);
CYASSL_LOCAL
void EmbedOcspRespFree(void*, byte*);
#endif
#ifdef CYASSL_DTLS
CYASSL_LOCAL
int EmbedReceiveFrom(CYASSL *ssl, char *buf, int sz, void *ctx);
CYASSL_LOCAL
int EmbedSendTo(CYASSL *ssl, char *buf, int sz, void *ctx);
CYASSL_LOCAL
int EmbedGenerateCookie(CYASSL* ssl, byte *buf, int sz, void *ctx);
CYASSL_LOCAL
int IsUDP(void*);
#endif /* CYASSL_DTLS */
#endif /* CYASSL_USER_IO */
/* CyaSSL Cipher type just points back to SSL */
struct CYASSL_CIPHER {
CYASSL* ssl;
};
#ifdef SINGLE_THREADED
typedef int CyaSSL_Mutex;
#else /* MULTI_THREADED */
/* FREERTOS comes first to enable use of FreeRTOS Windows simulator only */
#ifdef FREERTOS
typedef xSemaphoreHandle CyaSSL_Mutex;
#elif defined(CYASSL_SAFERTOS)
typedef struct CyaSSL_Mutex {
signed char mutexBuffer[portQUEUE_OVERHEAD_BYTES];
xSemaphoreHandle mutex;
} CyaSSL_Mutex;
#elif defined(USE_WINDOWS_API)
typedef CRITICAL_SECTION CyaSSL_Mutex;
#elif defined(CYASSL_PTHREADS)
typedef pthread_mutex_t CyaSSL_Mutex;
#elif defined(THREADX)
typedef TX_MUTEX CyaSSL_Mutex;
#elif defined(MICRIUM)
typedef OS_MUTEX CyaSSL_Mutex;
#elif defined(EBSNET)
typedef RTP_MUTEX CyaSSL_Mutex;
#elif defined(FREESCALE_MQX)
typedef MUTEX_STRUCT CyaSSL_Mutex;
#else
#error Need a mutex type in multithreaded mode
#endif /* USE_WINDOWS_API */
#endif /* SINGLE_THREADED */
CYASSL_LOCAL int InitMutex(CyaSSL_Mutex*);
CYASSL_LOCAL int FreeMutex(CyaSSL_Mutex*);
CYASSL_LOCAL int LockMutex(CyaSSL_Mutex*);
CYASSL_LOCAL int UnLockMutex(CyaSSL_Mutex*);
typedef struct OCSP_Entry OCSP_Entry;
#ifdef SHA_DIGEST_SIZE
#define OCSP_DIGEST_SIZE SHA_DIGEST_SIZE
#else
#define OCSP_DIGEST_SIZE 160
#endif
#ifdef NO_ASN
/* no_asn won't have */
typedef struct CertStatus CertStatus;
#endif
struct OCSP_Entry {
OCSP_Entry* 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 */
};
/* CyaSSL OCSP controller */
struct CYASSL_OCSP {
byte enabled;
byte useOverrideUrl;
byte useNonce;
char overrideUrl[80];
OCSP_Entry* ocspList;
void* IOCB_OcspCtx;
CallbackIOOcsp CBIOOcsp;
CallbackIOOcspRespFree CBIOOcspRespFree;
};
#ifndef MAX_DATE_SIZE
#define MAX_DATE_SIZE 32
#endif
typedef struct CRL_Entry CRL_Entry;
#ifdef SHA_DIGEST_SIZE
#define CRL_DIGEST_SIZE SHA_DIGEST_SIZE
#else
#define CRL_DIGEST_SIZE 160
#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 */
};
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 */
};
#ifndef HAVE_CRL
typedef struct CYASSL_CRL CYASSL_CRL;
#endif
/* CyaSSL CRL controller */
struct CYASSL_CRL {
CYASSL_CERT_MANAGER* cm; /* pointer back to cert manager */
CRL_Entry* crlList; /* our CRL list */
CyaSSL_Mutex crlLock; /* CRL list lock */
CRL_Monitor monitors[2]; /* PEM and DER possible */
#ifdef HAVE_CRL_MONITOR
pthread_t tid; /* monitoring thread */
#endif
};
#ifdef NO_ASN
typedef struct Signer Signer;
#endif
/* CyaSSL Certificate Manager */
struct CYASSL_CERT_MANAGER {
Signer* caList; /* the CA signer list */
CyaSSL_Mutex caLock; /* CA list lock */
CallbackCACache caCacheCallback; /* CA cache addition callback */
void* heap; /* heap helper */
CYASSL_CRL* crl; /* CRL checker */
byte crlEnabled; /* is CRL on ? */
byte crlCheckAll; /* always leaf, but all ? */
CbMissingCRL cbMissingCRL; /* notify through cb of missing crl */
};
/* CyaSSL Sock Addr */
struct CYASSL_SOCKADDR {
unsigned int sz; /* sockaddr size */
void* sa; /* pointer to the sockaddr_in or sockaddr_in6 */
};
typedef struct CYASSL_DTLS_CTX {
CYASSL_SOCKADDR peer;
int fd;
} CYASSL_DTLS_CTX;
/* CyaSSL context type */
struct CYASSL_CTX {
CYASSL_METHOD* method;
CyaSSL_Mutex countMutex; /* reference count mutex */
int refCount; /* reference count */
#ifndef NO_CERTS
buffer certificate;
buffer certChain;
/* chain after self, in DER, with leading size for each cert */
buffer privateKey;
buffer serverDH_P;
buffer serverDH_G;
CYASSL_CERT_MANAGER* cm; /* our cert manager, ctx owns SSL will use */
#endif
Suites suites;
void* heap; /* for user memory overrides */
byte verifyPeer;
byte verifyNone;
byte failNoCert;
byte sessionCacheOff;
byte sessionCacheFlushOff;
byte sendVerify; /* for client side */
byte haveRSA; /* RSA 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 */
CallbackIORecv CBIORecv;
CallbackIOSend CBIOSend;
#ifdef CYASSL_DTLS
CallbackGenCookie CBIOCookie; /* gen cookie callback */
#endif
VerifyCallback verifyCallback; /* cert verification callback */
word32 timeout; /* session timeout */
#ifdef HAVE_ECC
word16 eccTempKeySz; /* in octets 20 - 66 */
#endif
#ifndef NO_PSK
byte havePSK; /* psk key set by user */
psk_client_callback client_psk_cb; /* client callback */
psk_server_callback server_psk_cb; /* server callback */
char server_hint[MAX_PSK_ID_LEN];
#endif /* NO_PSK */
#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
pem_password_cb passwd_cb;
void* userdata;
#endif /* OPENSSL_EXTRA */
#ifdef HAVE_OCSP
CYASSL_OCSP ocsp;
#endif
#ifdef HAVE_CAVIUM
int devId; /* cavium device id to use */
#endif
};
CYASSL_LOCAL
int InitSSL_Ctx(CYASSL_CTX*, CYASSL_METHOD*);
CYASSL_LOCAL
void FreeSSL_Ctx(CYASSL_CTX*);
CYASSL_LOCAL
void SSL_CtxResourceFree(CYASSL_CTX*);
CYASSL_LOCAL
int DeriveTlsKeys(CYASSL* ssl);
CYASSL_LOCAL
int ProcessOldClientHello(CYASSL* ssl, const byte* input, word32* inOutIdx,
word32 inSz, word16 sz);
#ifndef NO_CERTS
CYASSL_LOCAL
int AddCA(CYASSL_CERT_MANAGER* ctx, buffer der, int type, int verify);
CYASSL_LOCAL
int AlreadySigner(CYASSL_CERT_MANAGER* cm, byte* hash);
#endif
/* All cipher suite related info */
typedef struct CipherSpecs {
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;
word16 key_size;
word16 iv_size;
word16 block_size;
word16 aead_mac_size;
} CipherSpecs;
void InitCipherSpecs(CipherSpecs* cs);
/* Supported Ciphers from page 43 */
enum BulkCipherAlgorithm {
cipher_null,
rc4,
rc2,
des,
triple_des, /* leading 3 (3des) not valid identifier */
des40,
idea,
aes,
aes_gcm,
aes_ccm,
camellia,
hc128, /* CyaSSL extensions */
rabbit
};
/* Supported Message Authentication Codes from page 43 */
enum MACAlgorithm {
no_mac,
md5_mac,
sha_mac,
sha224_mac,
sha256_mac,
sha384_mac,
sha512_mac,
rmd_mac
};
/* Supported Key Exchange Protocols */
enum KeyExchangeAlgorithm {
no_kea,
rsa_kea,
diffie_hellman_kea,
fortezza_kea,
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,
rsa_sa_algo,
dsa_sa_algo,
ecc_dsa_sa_algo
};
/* Supprted ECC Curve Types */
enum EccCurves {
named_curve = 3
};
/* Supprted ECC Named Curves */
enum EccNamedCurves {
secp256r1 = 0x17, /* default, OpenSSL also calls it prime256v1 */
secp384r1 = 0x18,
secp521r1 = 0x19,
secp160r1 = 0x10,
secp192r1 = 0x13, /* Openssl also call it prime192v1 */
secp224r1 = 0x15
};
/* 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
};
enum CipherType { stream, block, aead };
/* keys and secrets */
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[AES_IV_SIZE]; /* max sizes */
byte server_write_IV[AES_IV_SIZE];
#ifdef HAVE_AEAD
byte aead_exp_IV[AEAD_EXP_IV_SZ];
byte aead_enc_imp_IV[AEAD_IMP_IV_SZ];
byte aead_dec_imp_IV[AEAD_IMP_IV_SZ];
#endif
word32 peer_sequence_number;
word32 sequence_number;
#ifdef CYASSL_DTLS
word32 dtls_sequence_number;
word32 dtls_peer_sequence_number;
word32 dtls_expected_peer_sequence_number;
word16 dtls_handshake_number;
word16 dtls_peer_handshake_number;
word16 dtls_expected_peer_handshake_number;
word16 dtls_epoch;
word16 dtls_peer_epoch;
word16 dtls_expected_peer_epoch;
#endif
word32 encryptSz; /* last size of encrypted data */
byte encryptionOn; /* true after change cipher spec */
byte decryptedCur; /* only decrypt current record once */
} Keys;
/* cipher for now */
typedef struct Ciphers {
#ifdef BUILD_ARC4
Arc4* arc4;
#endif
#ifdef BUILD_DES3
Des3* des3;
#endif
#ifdef BUILD_AES
Aes* aes;
#endif
#ifdef HAVE_CAMELLIA
Camellia* cam;
#endif
#ifdef HAVE_HC128
HC128* hc128;
#endif
#ifdef BUILD_RABBIT
Rabbit* rabbit;
#endif
byte setup; /* have we set it up flag for detection */
} Ciphers;
CYASSL_LOCAL void InitCiphers(CYASSL* ssl);
CYASSL_LOCAL void FreeCiphers(CYASSL* ssl);
/* hashes type */
typedef struct Hashes {
#ifndef NO_OLD_TLS
byte md5[MD5_DIGEST_SIZE];
#endif
byte sha[SHA_DIGEST_SIZE];
#ifndef NO_SHA256
byte sha256[SHA256_DIGEST_SIZE];
#endif
#ifdef CYASSL_SHA384
byte sha384[SHA384_DIGEST_SIZE];
#endif
} Hashes;
/* Static x509 buffer */
typedef struct x509_buffer {
int length; /* actual size */
byte buffer[MAX_X509_SIZE]; /* max static cert size */
} x509_buffer;
/* CyaSSL X509_CHAIN, for no dynamic memory SESSION_CACHE */
struct CYASSL_X509_CHAIN {
int count; /* total number in chain */
x509_buffer certs[MAX_CHAIN_DEPTH]; /* only allow max depth 4 for now */
};
/* CyaSSL session type */
struct CYASSL_SESSION {
byte sessionID[ID_LEN];
byte masterSecret[SECRET_LEN];
word32 bornOn; /* create time in seconds */
word32 timeout; /* timeout in seconds */
#ifdef SESSION_CERTS
CYASSL_X509_CHAIN chain; /* peer cert chain, static */
ProtocolVersion version;
byte cipherSuite0; /* first byte, normally 0 */
byte cipherSuite; /* 2nd byte, actual suite */
#endif
};
CYASSL_LOCAL
CYASSL_SESSION* GetSession(CYASSL*, byte*);
CYASSL_LOCAL
int SetSession(CYASSL*, CYASSL_SESSION*);
typedef void (*hmacfp) (CYASSL*, byte*, const byte*, word32, int, int);
/* 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,
HELLO_VERIFY_SENT,
ACCEPT_FIRST_REPLY_DONE,
SERVER_HELLO_SENT,
CERT_SENT,
KEY_EXCHANGE_SENT,
CERT_REQ_SENT,
SERVER_HELLO_DONE,
ACCEPT_SECOND_REPLY_DONE,
CHANGE_CIPHER_SENT,
ACCEPT_FINISHED_DONE,
ACCEPT_THIRD_REPLY_DONE
};
typedef struct Buffers {
#ifndef NO_CERTS
buffer certificate; /* CYASSL_CTX owns, unless we own */
buffer key; /* CYASSL_CTX owns, unless we own */
buffer certChain; /* CYASSL_CTX owns */
/* chain after self, in DER, with leading size for each cert */
buffer serverDH_P; /* CYASSL_CTX owns, unless we own */
buffer serverDH_G; /* CYASSL_CTX owns, unless we own */
buffer serverDH_Pub;
buffer serverDH_Priv;
#endif
buffer domainName; /* for client check */
bufferStatic inputBuffer;
bufferStatic outputBuffer;
buffer clearOutputBuffer;
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 weOwnKey; /* SSL own key flag */
byte weOwnDH; /* SSL own dh (p,g) flag */
#ifdef CYASSL_DTLS
CYASSL_DTLS_CTX dtlsCtx; /* DTLS connection context */
#endif
} Buffers;
typedef struct Options {
byte sessionCacheOff;
byte sessionCacheFlushOff;
byte cipherSuite0; /* first byte, normally 0 */
byte cipherSuite; /* second byte, actual suite */
byte serverState;
byte clientState;
byte handShakeState;
byte side; /* client or server end */
byte verifyPeer;
byte verifyNone;
byte failNoCert;
byte downgrade; /* allow downgrade of versions */
byte sendVerify; /* false = 0, true = 1, sendBlank = 2 */
byte resuming;
byte haveSessionId; /* server may not send */
byte tls; /* using TLS ? */
byte tls1_1; /* using TLSv1.1+ ? */
byte dtls; /* using datagrams ? */
byte connReset; /* has the peer reset */
byte isClosed; /* if we consider conn closed */
byte closeNotify; /* we've recieved a close notify */
byte sentNotify; /* we've sent a close notify */
byte connectState; /* nonblocking resume */
byte acceptState; /* nonblocking resume */
byte usingCompression; /* are we using compression */
byte haveRSA; /* RSA available */
byte haveDH; /* server DH parms set by user */
byte haveNTRU; /* server NTRU private key loaded */
byte haveECDSAsig; /* server ECDSA signed cert */
byte haveStaticECC; /* static server ECC private key */
byte havePeerCert; /* do we have peer's cert */
byte havePeerVerify; /* and peer's cert verify */
byte usingPSK_cipher; /* whether we're using psk as cipher */
byte sendAlertState; /* nonblocking resume */
byte processReply; /* nonblocking resume */
byte partialWrite; /* only one msg per write call */
byte quietShutdown; /* don't send close notify */
byte certOnly; /* stop once we get cert */
byte groupMessages; /* group handshake messages */
byte usingNonblock; /* set when using nonblocking socket */
byte saveArrays; /* save array Memory for user get keys
or psk */
#ifndef NO_PSK
byte havePSK; /* psk key set by user */
psk_client_callback client_psk_cb;
psk_server_callback server_psk_cb;
#endif /* NO_PSK */
} Options;
typedef struct Arrays {
byte clientRandom[RAN_LEN];
byte serverRandom[RAN_LEN];
byte sessionID[ID_LEN];
byte preMasterSecret[ENCRYPT_LEN];
byte masterSecret[SECRET_LEN];
#ifdef CYASSL_DTLS
byte cookie[MAX_COOKIE_LEN];
byte cookieSz;
#endif
#ifndef NO_PSK
char client_identity[MAX_PSK_ID_LEN];
char server_hint[MAX_PSK_ID_LEN];
byte psk_key[MAX_PSK_KEY_LEN];
word32 psk_keySz; /* acutal size */
#endif
word32 preMasterSz; /* differs for DH, actual size */
} Arrays;
#ifndef ASN_NAME_MAX
#define ASN_NAME_MAX 256
#endif
struct CYASSL_X509_NAME {
char name[ASN_NAME_MAX];
int sz;
};
#ifndef EXTERNAL_SERIAL_SIZE
#define EXTERNAL_SERIAL_SIZE 32
#endif
#ifdef NO_ASN
typedef struct DNS_entry DNS_entry;
#endif
struct CYASSL_X509 {
CYASSL_X509_NAME issuer;
CYASSL_X509_NAME subject;
int serialSz;
byte serial[EXTERNAL_SERIAL_SIZE];
char subjectCN[ASN_NAME_MAX]; /* common name short cut */
buffer derCert; /* may need */
DNS_entry* altNames; /* alt names list */
DNS_entry* altNamesNext; /* hint for retrieval */
};
/* 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 epoch[2]; /* increment on cipher state change */
byte sequence_number[6]; /* per record */
byte length[2];
} DtlsRecordLayerHeader;
typedef struct DtlsPool {
buffer buf[DTLS_POOL_SZ];
int used;
} DtlsPool;
typedef struct DtlsMsg {
struct DtlsMsg* next;
word32 seq; /* Handshake sequence number */
word32 sz; /* Length of whole mesage */
word32 fragSz; /* Length of fragments received */
byte type;
byte* buf;
byte* msg;
} DtlsMsg;
/* CyaSSL ssl type */
struct CYASSL {
CYASSL_CTX* ctx;
int error;
ProtocolVersion version; /* negotiated version */
ProtocolVersion chVersion; /* client hello version */
Suites* suites; /* only need during handshake */
Ciphers encrypt;
Ciphers decrypt;
CipherSpecs specs;
Keys keys;
int rfd; /* read file descriptor */
int wfd; /* write file descriptor */
int rflags; /* user read flags */
int wflags; /* user write flags */
CYASSL_BIO* biord; /* socket bio read to free/close */
CYASSL_BIO* biowr; /* socket bio write to free/close */
void* IOCB_ReadCtx;
void* IOCB_WriteCtx;
RNG* rng;
#ifndef NO_OLD_TLS
#ifndef NO_SHA
Sha hashSha; /* sha hash of handshake msgs */
#endif
#ifndef NO_MD5
Md5 hashMd5; /* md5 hash of handshake msgs */
#endif
#endif
#ifndef NO_SHA256
Sha256 hashSha256; /* sha256 hash of handshake msgs */
#endif
#ifdef CYASSL_SHA384
Sha384 hashSha384; /* sha384 hash of handshake msgs */
#endif
Hashes verifyHashes;
Hashes certHashes; /* for cert verify */
Buffers buffers;
Options options;
Arrays* arrays;
CYASSL_SESSION session;
VerifyCallback verifyCallback; /* cert verification callback */
void* verifyCbCtx; /* cert verify callback user ctx*/
#ifndef NO_RSA
RsaKey* peerRsaKey;
byte peerRsaKeyPresent;
#endif
#ifdef HAVE_NTRU
word16 peerNtruKeyLen;
byte peerNtruKey[MAX_NTRU_PUB_KEY_SZ];
byte peerNtruKeyPresent;
#endif
#ifdef HAVE_ECC
ecc_key* peerEccKey; /* peer's ECDHE key */
ecc_key* peerEccDsaKey; /* peer's ECDSA key */
ecc_key* eccTempKey; /* private ECDHE key */
ecc_key* eccDsaKey; /* private ECDSA key */
word16 eccTempKeySz; /* in octets 20 - 66 */
byte peerEccKeyPresent;
byte peerEccDsaKeyPresent;
byte eccTempKeyPresent;
byte eccDsaKeyPresent;
#endif
hmacfp hmac;
void* heap; /* for user overrides */
RecordLayerHeader curRL;
word16 curSize;
word32 timeout; /* session timeout */
CYASSL_CIPHER cipher;
#ifdef HAVE_LIBZ
z_stream c_stream; /* compression stream */
z_stream d_stream; /* decompression stream */
byte didStreamInit; /* for stream init and end */
#endif
#ifdef CYASSL_DTLS
int dtls_timeout;
DtlsPool* dtls_pool;
DtlsMsg* dtls_msg_list;
void* IOCB_CookieCtx; /* gen cookie ctx */
#endif
#ifdef CYASSL_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 KEEP_PEER_CERT
CYASSL_X509 peerCert; /* X509 peer cert */
#endif
#ifdef FORTRESS
void* ex_data[MAX_EX_DATA]; /* external data, for Fortress */
#endif
#ifdef HAVE_CAVIUM
int devId; /* cavium device id to use */
#endif
CYASSL_ALERT_HISTORY alert_history;
};
CYASSL_LOCAL
int InitSSL(CYASSL*, CYASSL_CTX*);
CYASSL_LOCAL
void FreeSSL(CYASSL*);
CYASSL_API void SSL_ResourceFree(CYASSL*); /* 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 */
CYASSL_CTX* ctx; /* CTX owner */
} EncryptedInfo;
#ifndef NO_CERTS
CYASSL_LOCAL int PemToDer(const unsigned char* buff, long sz, int type,
buffer* der, void* heap, EncryptedInfo* info,
int* eccKey);
CYASSL_LOCAL int ProcessFile(CYASSL_CTX* ctx, const char* fname, int format,
int type, CYASSL* ssl, int userChain,
CYASSL_CRL* crl);
#endif
#ifdef CYASSL_CALLBACKS
CYASSL_LOCAL
void InitHandShakeInfo(HandShakeInfo*);
CYASSL_LOCAL
void FinishHandShakeInfo(HandShakeInfo*, const CYASSL*);
CYASSL_LOCAL
void AddPacketName(const char*, HandShakeInfo*);
CYASSL_LOCAL
void InitTimeoutInfo(TimeoutInfo*);
CYASSL_LOCAL
void FreeTimeoutInfo(TimeoutInfo*, void*);
CYASSL_LOCAL
void AddPacketInfo(const char*, TimeoutInfo*, const byte*, int, void*);
CYASSL_LOCAL
void AddLateName(const char*, TimeoutInfo*);
CYASSL_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, restransmit gets same # */
word24 fragment_offset; /* bytes in previous fragments */
word24 fragment_length; /* length of this fragment */
} DtlsHandShakeHeader;
enum HandShakeType {
no_shake = -1,
hello_request = 0,
client_hello = 1,
server_hello = 2,
hello_verify_request = 3, /* DTLS addition */
session_ticket = 4,
certificate = 11,
server_key_exchange = 12,
certificate_request = 13,
server_hello_done = 14,
certificate_verify = 15,
client_key_exchange = 16,
finished = 20
};
/* Valid Alert types from page 16/17 */
enum AlertDescription {
close_notify = 0,
unexpected_message = 10,
bad_record_mac = 20,
decompression_failure = 30,
handshake_failure = 40,
no_certificate = 41,
bad_certificate = 42,
unsupported_certificate = 43,
certificate_revoked = 44,
certificate_expired = 45,
certificate_unknown = 46,
illegal_parameter = 47,
decrypt_error = 51,
protocol_version = 70,
no_renegotiation = 100
};
enum AlertLevel {
alert_warning = 1,
alert_fatal = 2
};
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 */
CYASSL_LOCAL int SendChangeCipher(CYASSL*);
CYASSL_LOCAL int SendData(CYASSL*, const void*, int);
CYASSL_LOCAL int SendCertificate(CYASSL*);
CYASSL_LOCAL int SendCertificateRequest(CYASSL*);
CYASSL_LOCAL int SendServerKeyExchange(CYASSL*);
CYASSL_LOCAL int SendBuffered(CYASSL*);
CYASSL_LOCAL int ReceiveData(CYASSL*, byte*, int, int);
CYASSL_LOCAL int SendFinished(CYASSL*);
CYASSL_LOCAL int SendAlert(CYASSL*, int, int);
CYASSL_LOCAL int ProcessReply(CYASSL*);
CYASSL_LOCAL int SetCipherSpecs(CYASSL*);
CYASSL_LOCAL int MakeMasterSecret(CYASSL*);
CYASSL_LOCAL int AddSession(CYASSL*);
CYASSL_LOCAL int DeriveKeys(CYASSL* ssl);
CYASSL_LOCAL int StoreKeys(CYASSL* ssl, const byte* keyData);
CYASSL_LOCAL int IsTLS(const CYASSL* ssl);
CYASSL_LOCAL int IsAtLeastTLSv1_2(const CYASSL* ssl);
CYASSL_LOCAL void FreeHandshakeResources(CYASSL* ssl);
CYASSL_LOCAL void ShrinkInputBuffer(CYASSL* ssl, int forcedFree);
CYASSL_LOCAL void ShrinkOutputBuffer(CYASSL* ssl);
#ifndef NO_CERTS
CYASSL_LOCAL Signer* GetCA(void* cm, byte* hash);
#endif
CYASSL_LOCAL void BuildTlsFinished(CYASSL* ssl, Hashes* hashes,
const byte* sender);
CYASSL_LOCAL void FreeArrays(CYASSL* ssl, int keep);
CYASSL_LOCAL int CheckAvalaibleSize(CYASSL *ssl, int size);
CYASSL_LOCAL int GrowInputBuffer(CYASSL* ssl, int size, int usedLength);
#ifndef NO_TLS
CYASSL_LOCAL int MakeTlsMasterSecret(CYASSL*);
CYASSL_LOCAL void TLS_hmac(CYASSL* ssl, byte* digest, const byte* in,
word32 sz, int content, int verify);
#endif
#ifndef NO_CYASSL_CLIENT
CYASSL_LOCAL int SendClientHello(CYASSL*);
CYASSL_LOCAL int SendClientKeyExchange(CYASSL*);
CYASSL_LOCAL int SendCertificateVerify(CYASSL*);
#endif /* NO_CYASSL_CLIENT */
#ifndef NO_CYASSL_SERVER
CYASSL_LOCAL int SendServerHello(CYASSL*);
CYASSL_LOCAL int SendServerHelloDone(CYASSL*);
#ifdef CYASSL_DTLS
CYASSL_LOCAL int SendHelloVerifyRequest(CYASSL*);
#endif
#endif /* NO_CYASSL_SERVER */
#ifdef CYASSL_DTLS
CYASSL_LOCAL int DtlsPoolInit(CYASSL*);
CYASSL_LOCAL int DtlsPoolSave(CYASSL*, const byte*, int);
CYASSL_LOCAL int DtlsPoolTimeout(CYASSL*);
CYASSL_LOCAL int DtlsPoolSend(CYASSL*);
CYASSL_LOCAL void DtlsPoolReset(CYASSL*);
CYASSL_LOCAL DtlsMsg* DtlsMsgNew(word32, void*);
CYASSL_LOCAL void DtlsMsgDelete(DtlsMsg*, void*);
CYASSL_LOCAL void DtlsMsgListDelete(DtlsMsg*, void*);
CYASSL_LOCAL void DtlsMsgSet(DtlsMsg*, word32, const byte*, byte,
word32, word32);
CYASSL_LOCAL DtlsMsg* DtlsMsgFind(DtlsMsg*, word32);
CYASSL_LOCAL DtlsMsg* DtlsMsgStore(DtlsMsg*, word32, const byte*, word32,
byte, word32, word32, void*);
CYASSL_LOCAL DtlsMsg* DtlsMsgInsert(DtlsMsg*, DtlsMsg*);
#endif /* CYASSL_DTLS */
#ifndef NO_TLS
#endif /* NO_TLS */
CYASSL_LOCAL word32 LowResTimer(void);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* CyaSSL_INT_H */
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