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+/* ssl/ssl3.h */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECC cipher suite support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
+
+#ifndef HEADER_SSL3_H
+#define HEADER_SSL3_H
+
+#ifndef OPENSSL_NO_COMP
+#include <openssl/comp.h>
+#endif
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+#include <openssl/ssl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */
+#define SSL3_CK_SCSV 0x030000FF
+
+#define SSL3_CK_RSA_NULL_MD5 0x03000001
+#define SSL3_CK_RSA_NULL_SHA 0x03000002
+#define SSL3_CK_RSA_RC4_40_MD5 0x03000003
+#define SSL3_CK_RSA_RC4_128_MD5 0x03000004
+#define SSL3_CK_RSA_RC4_128_SHA 0x03000005
+#define SSL3_CK_RSA_RC2_40_MD5 0x03000006
+#define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
+#define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
+#define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
+#define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
+
+#define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
+#define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
+#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
+#define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
+#define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
+#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
+
+#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
+#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
+#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
+#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
+#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
+#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
+
+#define SSL3_CK_ADH_RC4_40_MD5 0x03000017
+#define SSL3_CK_ADH_RC4_128_MD5 0x03000018
+#define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
+#define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
+#define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
+
+#if 0
+ #define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
+ #define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
+ #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
+ to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
+ of the ietf-tls list */
+ #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
+ #endif
+#endif
+
+/* VRS Additional Kerberos5 entries
+ */
+#define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
+#define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
+#define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
+#define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
+#define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
+#define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
+#define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
+#define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
+
+#define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
+#define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
+#define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
+#define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
+#define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
+#define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
+
+#define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
+#define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
+#define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
+#define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
+#define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
+#define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
+#define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
+#define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
+#define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
+#define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
+
+#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
+#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
+#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
+#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
+#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
+#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
+
+#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
+#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
+#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
+#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
+#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
+#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
+
+#define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
+#define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
+#define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
+#define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
+#define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
+
+#if 0
+ #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
+ #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
+ #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
+#endif
+
+#define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
+#define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
+#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
+#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
+#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
+#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
+#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
+#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
+
+#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
+#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
+#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
+#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
+#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
+#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
+
+#define SSL3_SSL_SESSION_ID_LENGTH 32
+#define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
+
+#define SSL3_MASTER_SECRET_SIZE 48
+#define SSL3_RANDOM_SIZE 32
+#define SSL3_SESSION_ID_SIZE 32
+#define SSL3_RT_HEADER_LENGTH 5
+
+#ifndef SSL3_ALIGN_PAYLOAD
+ /* Some will argue that this increases memory footprint, but it's
+ * not actually true. Point is that malloc has to return at least
+ * 64-bit aligned pointers, meaning that allocating 5 bytes wastes
+ * 3 bytes in either case. Suggested pre-gaping simply moves these
+ * wasted bytes from the end of allocated region to its front,
+ * but makes data payload aligned, which improves performance:-) */
+# define SSL3_ALIGN_PAYLOAD 8
+#else
+# if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
+# error "insane SSL3_ALIGN_PAYLOAD"
+# undef SSL3_ALIGN_PAYLOAD
+# endif
+#endif
+
+/* This is the maximum MAC (digest) size used by the SSL library.
+ * Currently maximum of 20 is used by SHA1, but we reserve for
+ * future extension for 512-bit hashes.
+ */
+
+#define SSL3_RT_MAX_MD_SIZE 64
+
+/* Maximum block size used in all ciphersuites. Currently 16 for AES.
+ */
+
+#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
+
+#define SSL3_RT_MAX_EXTRA (16384)
+
+/* Default buffer length used for writen records. Thus a generated record
+ * will contain plaintext no larger than this value. */
+#define SSL3_RT_DEFAULT_PLAIN_LENGTH 2048
+/* Maximum plaintext length: defined by SSL/TLS standards */
+#define SSL3_RT_MAX_PLAIN_LENGTH 16384
+/* Maximum compression overhead: defined by SSL/TLS standards */
+#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
+
+/* The standards give a maximum encryption overhead of 1024 bytes.
+ * In practice the value is lower than this. The overhead is the maximum
+ * number of padding bytes (256) plus the mac size.
+ */
+#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
+
+/* OpenSSL currently only uses a padding length of at most one block so
+ * the send overhead is smaller.
+ */
+
+#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
+ (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
+
+/* If compression isn't used don't include the compression overhead */
+
+#ifdef OPENSSL_NO_COMP
+#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
+#else
+#define SSL3_RT_MAX_COMPRESSED_LENGTH \
+ (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
+#endif
+#define SSL3_RT_MAX_ENCRYPTED_LENGTH \
+ (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
+#define SSL3_RT_MAX_PACKET_SIZE \
+ (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
+
+/* Extra space for empty fragment, headers, MAC, and padding. */
+#define SSL3_RT_DEFAULT_WRITE_OVERHEAD 256
+#define SSL3_RT_DEFAULT_PACKET_SIZE 4096 - SSL3_RT_DEFAULT_WRITE_OVERHEAD
+#if SSL3_RT_DEFAULT_PLAIN_LENGTH + SSL3_RT_DEFAULT_WRITE_OVERHEAD > SSL3_RT_DEFAULT_PACKET_SIZE
+#error "Insufficient space allocated for write buffers."
+#endif
+
+#define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
+#define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
+
+#define SSL3_VERSION 0x0300
+#define SSL3_VERSION_MAJOR 0x03
+#define SSL3_VERSION_MINOR 0x00
+
+#define SSL3_RT_CHANGE_CIPHER_SPEC 20
+#define SSL3_RT_ALERT 21
+#define SSL3_RT_HANDSHAKE 22
+#define SSL3_RT_APPLICATION_DATA 23
+
+#define SSL3_AL_WARNING 1
+#define SSL3_AL_FATAL 2
+
+#define SSL3_AD_CLOSE_NOTIFY 0
+#define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
+#define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
+#define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
+#define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
+#define SSL3_AD_NO_CERTIFICATE 41
+#define SSL3_AD_BAD_CERTIFICATE 42
+#define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
+#define SSL3_AD_CERTIFICATE_REVOKED 44
+#define SSL3_AD_CERTIFICATE_EXPIRED 45
+#define SSL3_AD_CERTIFICATE_UNKNOWN 46
+#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
+
+typedef struct ssl3_record_st
+ {
+/*r */ int type; /* type of record */
+/*rw*/ unsigned int length; /* How many bytes available */
+/*r */ unsigned int off; /* read/write offset into 'buf' */
+/*rw*/ unsigned char *data; /* pointer to the record data */
+/*rw*/ unsigned char *input; /* where the decode bytes are */
+/*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
+/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
+/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
+ } SSL3_RECORD;
+
+typedef struct ssl3_buffer_st
+ {
+ unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
+ * see ssl3_setup_buffers() */
+ size_t len; /* buffer size */
+ int offset; /* where to 'copy from' */
+ int left; /* how many bytes left */
+ } SSL3_BUFFER;
+
+#define SSL3_CT_RSA_SIGN 1
+#define SSL3_CT_DSS_SIGN 2
+#define SSL3_CT_RSA_FIXED_DH 3
+#define SSL3_CT_DSS_FIXED_DH 4
+#define SSL3_CT_RSA_EPHEMERAL_DH 5
+#define SSL3_CT_DSS_EPHEMERAL_DH 6
+#define SSL3_CT_FORTEZZA_DMS 20
+/* SSL3_CT_NUMBER is used to size arrays and it must be large
+ * enough to contain all of the cert types defined either for
+ * SSLv3 and TLSv1.
+ */
+#define SSL3_CT_NUMBER 9
+
+
+#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
+#define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
+#define SSL3_FLAGS_POP_BUFFER 0x0004
+#define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
+#define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
+
+typedef struct ssl3_state_st
+ {
+ long flags;
+ int delay_buf_pop_ret;
+
+ unsigned char read_sequence[8];
+ int read_mac_secret_size;
+ unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
+ unsigned char write_sequence[8];
+ int write_mac_secret_size;
+ unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
+
+ unsigned char server_random[SSL3_RANDOM_SIZE];
+ unsigned char client_random[SSL3_RANDOM_SIZE];
+
+ /* flags for countermeasure against known-IV weakness */
+ int need_empty_fragments;
+ int empty_fragment_done;
+
+ /* The value of 'extra' when the buffers were initialized */
+ int init_extra;
+
+ SSL3_BUFFER rbuf; /* read IO goes into here */
+ SSL3_BUFFER wbuf; /* write IO goes into here */
+
+ SSL3_RECORD rrec; /* each decoded record goes in here */
+ SSL3_RECORD wrec; /* goes out from here */
+
+ /* storage for Alert/Handshake protocol data received but not
+ * yet processed by ssl3_read_bytes: */
+ unsigned char alert_fragment[2];
+ unsigned int alert_fragment_len;
+ unsigned char handshake_fragment[4];
+ unsigned int handshake_fragment_len;
+
+ /* partial write - check the numbers match */
+ unsigned int wnum; /* number of bytes sent so far */
+ int wpend_tot; /* number bytes written */
+ int wpend_type;
+ int wpend_ret; /* number of bytes submitted */
+ const unsigned char *wpend_buf;
+
+ /* used during startup, digest all incoming/outgoing packets */
+ BIO *handshake_buffer;
+ /* When set of handshake digests is determined, buffer is hashed
+ * and freed and MD_CTX-es for all required digests are stored in
+ * this array */
+ EVP_MD_CTX **handshake_dgst;
+ /* this is set whenerver we see a change_cipher_spec message
+ * come in when we are not looking for one */
+ int change_cipher_spec;
+
+ int warn_alert;
+ int fatal_alert;
+ /* we allow one fatal and one warning alert to be outstanding,
+ * send close alert via the warning alert */
+ int alert_dispatch;
+ unsigned char send_alert[2];
+
+ /* This flag is set when we should renegotiate ASAP, basically when
+ * there is no more data in the read or write buffers */
+ int renegotiate;
+ int total_renegotiations;
+ int num_renegotiations;
+
+ int in_read_app_data;
+
+ /* Opaque PRF input as used for the current handshake.
+ * These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined
+ * (otherwise, they are merely present to improve binary compatibility) */
+ void *client_opaque_prf_input;
+ size_t client_opaque_prf_input_len;
+ void *server_opaque_prf_input;
+ size_t server_opaque_prf_input_len;
+
+#ifndef OPENSSL_NO_NEXTPROTONEG
+ /* Set if we saw the Next Protocol Negotiation extension from
+ our peer. */
+ int next_proto_neg_seen;
+#endif
+
+ struct {
+ /* actually only needs to be 16+20 */
+ unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
+
+ /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
+ unsigned char finish_md[EVP_MAX_MD_SIZE*2];
+ int finish_md_len;
+ unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
+ int peer_finish_md_len;
+
+ unsigned long message_size;
+ int message_type;
+
+ /* used to hold the new cipher we are going to use */
+ const SSL_CIPHER *new_cipher;
+#ifndef OPENSSL_NO_DH
+ DH *dh;
+#endif
+
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *ecdh; /* holds short lived ECDH key */
+#endif
+
+ /* used when SSL_ST_FLUSH_DATA is entered */
+ int next_state;
+
+ int reuse_message;
+
+ /* used for certificate requests */
+ int cert_req;
+ int ctype_num;
+ char ctype[SSL3_CT_NUMBER];
+ STACK_OF(X509_NAME) *ca_names;
+
+ int use_rsa_tmp;
+
+ int key_block_length;
+ unsigned char *key_block;
+
+ const EVP_CIPHER *new_sym_enc;
+ const EVP_MD *new_hash;
+ int new_mac_pkey_type;
+ int new_mac_secret_size;
+#ifndef OPENSSL_NO_COMP
+ const SSL_COMP *new_compression;
+#else
+ char *new_compression;
+#endif
+ int cert_request;
+ } tmp;
+
+ /* Connection binding to prevent renegotiation attacks */
+ unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
+ unsigned char previous_client_finished_len;
+ unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
+ unsigned char previous_server_finished_len;
+ int send_connection_binding; /* TODOEKR */
+ } SSL3_STATE;
+
+
+/* SSLv3 */
+/*client */
+/* extra state */
+#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
+#define SSL3_ST_CUTTHROUGH_COMPLETE (0x101|SSL_ST_CONNECT)
+/* write to server */
+#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
+/* read from server */
+#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
+#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
+#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
+#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
+#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
+#define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
+#define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
+#define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
+/* write to server */
+#define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
+#define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
+#define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
+#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
+#ifndef OPENSSL_NO_NEXTPROTONEG
+#define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
+#define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
+#endif
+#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
+#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
+/* read from server */
+#define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
+#define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
+#define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
+#define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT)
+#define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT)
+#define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT)
+
+/* server */
+/* extra state */
+#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
+/* read from client */
+/* Do not change the number values, they do matter */
+#define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
+/* write to client */
+#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
+#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
+/* read from client */
+#define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
+#ifndef OPENSSL_NO_NEXTPROTONEG
+#define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
+#endif
+#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
+/* write to client */
+#define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT)
+#define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT)
+
+#define SSL3_MT_HELLO_REQUEST 0
+#define SSL3_MT_CLIENT_HELLO 1
+#define SSL3_MT_SERVER_HELLO 2
+#define SSL3_MT_NEWSESSION_TICKET 4
+#define SSL3_MT_CERTIFICATE 11
+#define SSL3_MT_SERVER_KEY_EXCHANGE 12
+#define SSL3_MT_CERTIFICATE_REQUEST 13
+#define SSL3_MT_SERVER_DONE 14
+#define SSL3_MT_CERTIFICATE_VERIFY 15
+#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
+#define SSL3_MT_FINISHED 20
+#define SSL3_MT_CERTIFICATE_STATUS 22
+#ifndef OPENSSL_NO_NEXTPROTONEG
+#define SSL3_MT_NEXT_PROTO 67
+#endif
+#define DTLS1_MT_HELLO_VERIFY_REQUEST 3
+
+
+#define SSL3_MT_CCS 1
+
+/* These are used when changing over to a new cipher */
+#define SSL3_CC_READ 0x01
+#define SSL3_CC_WRITE 0x02
+#define SSL3_CC_CLIENT 0x10
+#define SSL3_CC_SERVER 0x20
+#define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
+#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
+#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
+#define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
+
+#ifdef __cplusplus
+}
+#endif
+#endif