ssl/ssl_asn1.c - boringssl - Git at Google

 /* 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 2005 Nokia. All rights reserved.
  *
  * The portions of the attached software ("Contribution") is developed by
  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
  * license.
  *
  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
  * support (see RFC 4279) to OpenSSL.
  *
  * No patent licenses or other rights except those expressly stated in
  * the OpenSSL open source license shall be deemed granted or received
  * expressly, by implication, estoppel, or otherwise.
  *
  * No assurances are provided by Nokia that the Contribution does not
  * infringe the patent or other intellectual property rights of any third
  * party or that the license provides you with all the necessary rights
  * to make use of the Contribution.
  *
  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
  * OTHERWISE. */

 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>

 #include <openssl/asn1.h>
 #include <openssl/asn1_mac.h>
 #include <openssl/err.h>
 #include <openssl/mem.h>
 #include <openssl/obj.h>
 #include <openssl/x509.h>

 #include "ssl_locl.h"

 OPENSSL_DECLARE_ERROR_REASON(SSL, CIPHER_CODE_WRONG_LENGTH);
 OPENSSL_DECLARE_ERROR_REASON(SSL, UNKNOWN_SSL_VERSION);
 OPENSSL_DECLARE_ERROR_REASON(SSL, BAD_LENGTH);
 OPENSSL_DECLARE_ERROR_FUNCTION(SSL, D2I_SSL_SESSION);


 typedef struct ssl_session_asn1_st
 	{
 	ASN1_INTEGER version;
 	ASN1_INTEGER ssl_version;
 	ASN1_OCTET_STRING cipher;
 	ASN1_OCTET_STRING comp_id;
 	ASN1_OCTET_STRING master_key;
 	ASN1_OCTET_STRING session_id;
 	ASN1_OCTET_STRING session_id_context;
 	ASN1_OCTET_STRING key_arg;
 	ASN1_INTEGER time;
 	ASN1_INTEGER timeout;
 	ASN1_INTEGER verify_result;
 	ASN1_OCTET_STRING tlsext_hostname;
 	ASN1_INTEGER tlsext_tick_lifetime;
 	ASN1_OCTET_STRING tlsext_tick;
 	ASN1_OCTET_STRING psk_identity_hint;
 	ASN1_OCTET_STRING psk_identity;
 	ASN1_OCTET_STRING peer_sha256;
 	ASN1_OCTET_STRING original_handshake_hash;
 	} SSL_SESSION_ASN1;

 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 	{
 #define LSIZE2 (sizeof(long)*2)
 	int v1=0,v2=0,v3=0,v4=0,v5=0,v7=0,v8=0,v13=0,v14=0;
 	unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
 	unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
 	int v6=0,v9=0,v10=0;
 	unsigned char ibuf6[LSIZE2];
 	long l;
 	SSL_SESSION_ASN1 a;
 	M_ASN1_I2D_vars(in);

 	if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
 		return(0);

 	/* Note that I cheat in the following 2 assignments.  I know
 	 * that if the ASN1_INTEGER passed to ASN1_INTEGER_set
 	 * is > sizeof(long)+1, the buffer will not be re-OPENSSL_malloc()ed.
 	 * This is a bit evil but makes things simple, no dynamic allocation
 	 * to clean up :-) */
 	a.version.length=LSIZE2;
 	a.version.type=V_ASN1_INTEGER;
 	a.version.data=ibuf1;
 	ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION);

 	a.ssl_version.length=LSIZE2;
 	a.ssl_version.type=V_ASN1_INTEGER;
 	a.ssl_version.data=ibuf2;
 	ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version);

 	a.cipher.type=V_ASN1_OCTET_STRING;
 	a.cipher.data=buf;

 	if (in->cipher == NULL)
 		l=in->cipher_id;
 	else
 		l=in->cipher->id;
 	if (in->ssl_version == SSL2_VERSION)
 		{
 		a.cipher.length=3;
 		buf[0]=((unsigned char)(l>>16L))&0xff;
 		buf[1]=((unsigned char)(l>> 8L))&0xff;
 		buf[2]=((unsigned char)(l     ))&0xff;
 		}
 	else
 		{
 		a.cipher.length=2;
 		buf[0]=((unsigned char)(l>>8L))&0xff;
 		buf[1]=((unsigned char)(l    ))&0xff;
 		}


 	a.master_key.length=in->master_key_length;
 	a.master_key.type=V_ASN1_OCTET_STRING;
 	a.master_key.data=in->master_key;

 	a.session_id.length=in->session_id_length;
 	a.session_id.type=V_ASN1_OCTET_STRING;
 	a.session_id.data=in->session_id;

 	a.session_id_context.length=in->sid_ctx_length;
 	a.session_id_context.type=V_ASN1_OCTET_STRING;
 	a.session_id_context.data=in->sid_ctx;

 	a.key_arg.length=in->key_arg_length;
 	a.key_arg.type=V_ASN1_OCTET_STRING;
 	a.key_arg.data=in->key_arg;

 	if (in->time != 0L)
 		{
 		a.time.length=LSIZE2;
 		a.time.type=V_ASN1_INTEGER;
 		a.time.data=ibuf3;
 		ASN1_INTEGER_set(&(a.time),in->time);
 		}

 	if (in->timeout != 0L)
 		{
 		a.timeout.length=LSIZE2;
 		a.timeout.type=V_ASN1_INTEGER;
 		a.timeout.data=ibuf4;
 		ASN1_INTEGER_set(&(a.timeout),in->timeout);
 		}

 	if (in->verify_result != X509_V_OK)
 		{
 		a.verify_result.length=LSIZE2;
 		a.verify_result.type=V_ASN1_INTEGER;
 		a.verify_result.data=ibuf5;
 		ASN1_INTEGER_set(&a.verify_result,in->verify_result);
 		}

 	if (in->tlsext_hostname)
                 {
                 a.tlsext_hostname.length=strlen(in->tlsext_hostname);
                 a.tlsext_hostname.type=V_ASN1_OCTET_STRING;
                 a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname;
                 }
 	if (in->tlsext_tick)
                 {
                 a.tlsext_tick.length= in->tlsext_ticklen;
                 a.tlsext_tick.type=V_ASN1_OCTET_STRING;
                 a.tlsext_tick.data=(unsigned char *)in->tlsext_tick;
                 }
 	if (in->tlsext_tick_lifetime_hint > 0)
 		{
 		a.tlsext_tick_lifetime.length=LSIZE2;
 		a.tlsext_tick_lifetime.type=V_ASN1_INTEGER;
 		a.tlsext_tick_lifetime.data=ibuf6;
 		ASN1_INTEGER_set(&a.tlsext_tick_lifetime,in->tlsext_tick_lifetime_hint);
 		}
 	if (in->psk_identity_hint)
 		{
 		a.psk_identity_hint.length=strlen(in->psk_identity_hint);
 		a.psk_identity_hint.type=V_ASN1_OCTET_STRING;
 		a.psk_identity_hint.data=(unsigned char *)(in->psk_identity_hint);
 		}
 	if (in->psk_identity)
 		{
 		a.psk_identity.length=strlen(in->psk_identity);
 		a.psk_identity.type=V_ASN1_OCTET_STRING;
 		a.psk_identity.data=(unsigned char *)(in->psk_identity);
 		}

 	if (in->peer_sha256_valid)
 		{
 		a.peer_sha256.length = sizeof(in->peer_sha256);
 		a.peer_sha256.type = V_ASN1_OCTET_STRING;
 		a.peer_sha256.data = in->peer_sha256;
 		}

 	if (in->original_handshake_hash_len > 0)
 		{
 		a.original_handshake_hash.length = in->original_handshake_hash_len;
 		a.original_handshake_hash.type = V_ASN1_OCTET_STRING;
 		a.original_handshake_hash.data = in->original_handshake_hash;
 		}

 	M_ASN1_I2D_len(&(a.version),		i2d_ASN1_INTEGER);
 	M_ASN1_I2D_len(&(a.ssl_version),	i2d_ASN1_INTEGER);
 	M_ASN1_I2D_len(&(a.cipher),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_len(&(a.session_id),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_len(&(a.master_key),		i2d_ASN1_OCTET_STRING);
 	if (in->key_arg_length > 0)
 		M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
 	if (in->time != 0L)
 		M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
 	if (in->timeout != 0L)
 		M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
 	if (in->peer != NULL && in->peer_sha256_valid == 0)
 		M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3);
 	M_ASN1_I2D_len_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,v4);
 	if (in->verify_result != X509_V_OK)
 		M_ASN1_I2D_len_EXP_opt(&(a.verify_result),i2d_ASN1_INTEGER,5,v5);

 	if (in->tlsext_tick_lifetime_hint > 0)
       	 	M_ASN1_I2D_len_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
 	if (in->tlsext_tick)
         	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
 	if (in->tlsext_hostname)
         	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
 	if (in->psk_identity_hint)
         	M_ASN1_I2D_len_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,7,v7);
 	if (in->psk_identity)
         	M_ASN1_I2D_len_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,8,v8);
 	if (in->peer_sha256_valid)
 		M_ASN1_I2D_len_EXP_opt(&(a.peer_sha256),i2d_ASN1_OCTET_STRING,13,v13);
 	if (in->original_handshake_hash_len > 0)
 		M_ASN1_I2D_len_EXP_opt(&(a.original_handshake_hash),i2d_ASN1_OCTET_STRING,14,v14);

 	M_ASN1_I2D_seq_total();

 	M_ASN1_I2D_put(&(a.version),		i2d_ASN1_INTEGER);
 	M_ASN1_I2D_put(&(a.ssl_version),	i2d_ASN1_INTEGER);
 	M_ASN1_I2D_put(&(a.cipher),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_put(&(a.session_id),		i2d_ASN1_OCTET_STRING);
 	M_ASN1_I2D_put(&(a.master_key),		i2d_ASN1_OCTET_STRING);
 	if (in->key_arg_length > 0)
 		M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
 	if (in->time != 0L)
 		M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
 	if (in->timeout != 0L)
 		M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
 	if (in->peer != NULL && in->peer_sha256_valid == 0)
 		M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3);
 	M_ASN1_I2D_put_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,
 			       v4);
 	if (in->verify_result != X509_V_OK)
 		M_ASN1_I2D_put_EXP_opt(&a.verify_result,i2d_ASN1_INTEGER,5,v5);
 	if (in->tlsext_hostname)
         	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
 	if (in->psk_identity_hint)
 		M_ASN1_I2D_put_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,7,v7);
 	if (in->psk_identity)
 		M_ASN1_I2D_put_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,8,v8);
 	if (in->tlsext_tick_lifetime_hint > 0)
       	 	M_ASN1_I2D_put_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
 	if (in->tlsext_tick)
         	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
 	if (in->peer_sha256_valid)
 		M_ASN1_I2D_put_EXP_opt(&(a.peer_sha256),i2d_ASN1_OCTET_STRING,13,v13);
 	if (in->original_handshake_hash_len > 0)
 		M_ASN1_I2D_put_EXP_opt(&(a.original_handshake_hash),i2d_ASN1_OCTET_STRING,14,v14);

 	M_ASN1_I2D_finish();
 	}

 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
 			     long length)
 	{
 	int ssl_version=0,i;
 	long id;
 	ASN1_INTEGER ai,*aip;
 	ASN1_OCTET_STRING os,*osp;
 	M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new);

 	aip= &ai;
 	osp= &os;

 	M_ASN1_D2I_Init();
 	M_ASN1_D2I_start_sequence();

 	ai.data=NULL; ai.length=0;
 	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
 	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }

 	/* we don't care about the version right now :-) */
 	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
 	ssl_version=(int)ASN1_INTEGER_get(aip);
 	ret->ssl_version=ssl_version;
 	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }

 	os.data=NULL; os.length=0;
 	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
 	if (ssl_version == SSL2_VERSION)
 		{
 		if (os.length != 3)
 			{
 			c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
 			c.line=__LINE__;
 			goto err;
 			}
 		id=0x02000000L|
 			((unsigned long)os.data[0]<<16L)|
 			((unsigned long)os.data[1]<< 8L)|
 			 (unsigned long)os.data[2];
 		}
 	else if ((ssl_version>>8) >= SSL3_VERSION_MAJOR)
 		{
 		if (os.length != 2)
 			{
 			c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
 			c.line=__LINE__;
 			goto err;
 			}
 		id=0x03000000L|
 			((unsigned long)os.data[0]<<8L)|
 			 (unsigned long)os.data[1];
 		}
 	else
 		{
 		c.error=SSL_R_UNKNOWN_SSL_VERSION;
 		c.line=__LINE__;
 		goto err;
 		}

 	ret->cipher_id=id;
 	ret->cipher = ssl3_get_cipher_by_value(ret->cipher_id & 0xffff);
 	if (ret->cipher == NULL)
 		{
 		c.error=SSL_R_UNSUPPORTED_CIPHER;
 		c.line = __LINE__;
 		goto err;
 		}

 	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
 	if ((ssl_version>>8) >= SSL3_VERSION_MAJOR)
 		i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
 	else /* if (ssl_version>>8 == SSL2_VERSION_MAJOR) */
 		i=SSL2_MAX_SSL_SESSION_ID_LENGTH;

 	if (os.length > i)
 		os.length = i;
 	if (os.length > (int)sizeof(ret->session_id)) /* can't happen */
 		os.length = sizeof(ret->session_id);

 	ret->session_id_length=os.length;
 	assert(os.length <= (int)sizeof(ret->session_id));
 	memcpy(ret->session_id,os.data,os.length);

 	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
 	if (os.length > SSL_MAX_MASTER_KEY_LENGTH)
 		ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
 	else
 		ret->master_key_length=os.length;
 	memcpy(ret->master_key,os.data,ret->master_key_length);

 	os.length=0;

 	M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
 	if (os.length > SSL_MAX_KEY_ARG_LENGTH)
 		ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
 	else
 		ret->key_arg_length=os.length;
 	memcpy(ret->key_arg,os.data,ret->key_arg_length);
 	if (os.data != NULL) OPENSSL_free(os.data);

 	ai.length=0;
 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1);
 	if (ai.data != NULL)
 		{
 		ret->time=ASN1_INTEGER_get(aip);
 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
 		}
 	else
 		ret->time=(unsigned long)time(NULL);

 	ai.length=0;
 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
 	if (ai.data != NULL)
 		{
 		ret->timeout=ASN1_INTEGER_get(aip);
 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
 		}
 	else
 		ret->timeout=3;

 	if (ret->peer != NULL)
 		{
 		X509_free(ret->peer);
 		ret->peer=NULL;
 		}
 	M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3);

 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,4);

 	if(os.data != NULL)
 	    {
 	    if (os.length > SSL_MAX_SID_CTX_LENGTH)
 		{
 		c.error=SSL_R_BAD_LENGTH;
 		c.line=__LINE__;
 		goto err;
 		}
 	    else
 		{
 		ret->sid_ctx_length=os.length;
 		memcpy(ret->sid_ctx,os.data,os.length);
 		}
 	    OPENSSL_free(os.data); os.data=NULL; os.length=0;
 	    }
 	else
 	    ret->sid_ctx_length=0;

 	ai.length=0;
 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,5);
 	if (ai.data != NULL)
 		{
 		ret->verify_result=ASN1_INTEGER_get(aip);
 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
 		}
 	else
 		ret->verify_result=X509_V_OK;

 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6);
 	if (os.data)
 		{
 		ret->tlsext_hostname = BUF_strndup((char *)os.data, os.length);
 		OPENSSL_free(os.data);
 		os.data = NULL;
 		os.length = 0;
 		}
 	else
 		ret->tlsext_hostname=NULL;

 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,7);
 	if (os.data)
 		{
 		ret->psk_identity_hint = BUF_strndup((char *)os.data, os.length);
 		OPENSSL_free(os.data);
 		os.data = NULL;
 		os.length = 0;
 		}
 	else
 		ret->psk_identity_hint=NULL;

 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,8);
 	if (os.data)
 		{
 		ret->psk_identity = BUF_strndup((char *)os.data, os.length);
 		OPENSSL_free(os.data);
 		os.data = NULL;
 		os.length = 0;
 		}
 	else
 		ret->psk_identity=NULL;

 	ai.length=0;
 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,9);
 	if (ai.data != NULL)
 		{
 		ret->tlsext_tick_lifetime_hint=ASN1_INTEGER_get(aip);
 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
 		}
 	else if (ret->tlsext_ticklen && ret->session_id_length)
 		ret->tlsext_tick_lifetime_hint = -1;
 	else
 		ret->tlsext_tick_lifetime_hint=0;
 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,10);
 	if (os.data)
 		{
 		ret->tlsext_tick = os.data;
 		ret->tlsext_ticklen = os.length;
 		os.data = NULL;
 		os.length = 0;
 		}
 	else
 		ret->tlsext_tick=NULL;

 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,13);
 	if (os.data && os.length == sizeof(ret->peer_sha256))
 		{
 		memcpy(ret->peer_sha256, os.data, sizeof(ret->peer_sha256));
 		ret->peer_sha256_valid = 1;
 		OPENSSL_free(os.data);
 		os.data = NULL;
 		}

 	os.length=0;
 	os.data=NULL;
 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,14);
 	if (os.data && os.length < (int)sizeof(ret->original_handshake_hash))
 		{
 		memcpy(ret->original_handshake_hash, os.data, os.length);
 		ret->original_handshake_hash_len = os.length;
 		OPENSSL_free(os.data);
 		os.data = NULL;
 		}

 	M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
 	}
	/* 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 2005 Nokia. All rights reserved.
	*
	* The portions of the attached software ("Contribution") is developed by
	* Nokia Corporation and is licensed pursuant to the OpenSSL open source
	* license.
	*
	* The Contribution, originally written by Mika Kousa and Pasi Eronen of
	* Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
	* support (see RFC 4279) to OpenSSL.
	*
	* No patent licenses or other rights except those expressly stated in
	* the OpenSSL open source license shall be deemed granted or received
	* expressly, by implication, estoppel, or otherwise.
	*
	* No assurances are provided by Nokia that the Contribution does not
	* infringe the patent or other intellectual property rights of any third
	* party or that the license provides you with all the necessary rights
	* to make use of the Contribution.
	*
	* THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
	* ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
	* SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
	* OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
	* OTHERWISE. */

	#include <assert.h>
	#include <stdio.h>
	#include <stdlib.h>

	#include <openssl/asn1.h>
	#include <openssl/asn1_mac.h>
	#include <openssl/err.h>
	#include <openssl/mem.h>
	#include <openssl/obj.h>
	#include <openssl/x509.h>

	#include "ssl_locl.h"

	OPENSSL_DECLARE_ERROR_REASON(SSL, CIPHER_CODE_WRONG_LENGTH);
	OPENSSL_DECLARE_ERROR_REASON(SSL, UNKNOWN_SSL_VERSION);
	OPENSSL_DECLARE_ERROR_REASON(SSL, BAD_LENGTH);
	OPENSSL_DECLARE_ERROR_FUNCTION(SSL, D2I_SSL_SESSION);


	typedef struct ssl_session_asn1_st
	{
	ASN1_INTEGER version;
	ASN1_INTEGER ssl_version;
	ASN1_OCTET_STRING cipher;
	ASN1_OCTET_STRING comp_id;
	ASN1_OCTET_STRING master_key;
	ASN1_OCTET_STRING session_id;
	ASN1_OCTET_STRING session_id_context;
	ASN1_OCTET_STRING key_arg;
	ASN1_INTEGER time;
	ASN1_INTEGER timeout;
	ASN1_INTEGER verify_result;
	ASN1_OCTET_STRING tlsext_hostname;
	ASN1_INTEGER tlsext_tick_lifetime;
	ASN1_OCTET_STRING tlsext_tick;
	ASN1_OCTET_STRING psk_identity_hint;
	ASN1_OCTET_STRING psk_identity;
	ASN1_OCTET_STRING peer_sha256;
	ASN1_OCTET_STRING original_handshake_hash;
	} SSL_SESSION_ASN1;

	int i2d_SSL_SESSION(SSL_SESSION in, unsigned char *pp)
	{
	#define LSIZE2 (sizeof(long)*2)
	int v1=0,v2=0,v3=0,v4=0,v5=0,v7=0,v8=0,v13=0,v14=0;
	unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
	unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
	int v6=0,v9=0,v10=0;
	unsigned char ibuf6[LSIZE2];
	long l;
	SSL_SESSION_ASN1 a;
	M_ASN1_I2D_vars(in);

	if ((in == NULL) \|\| ((in->cipher == NULL) && (in->cipher_id == 0)))
	return(0);

	/* Note that I cheat in the following 2 assignments. I know
	* that if the ASN1_INTEGER passed to ASN1_INTEGER_set
	* is > sizeof(long)+1, the buffer will not be re-OPENSSL_malloc()ed.
	* This is a bit evil but makes things simple, no dynamic allocation
	* to clean up :-) */
	a.version.length=LSIZE2;
	a.version.type=V_ASN1_INTEGER;
	a.version.data=ibuf1;
	ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION);

	a.ssl_version.length=LSIZE2;
	a.ssl_version.type=V_ASN1_INTEGER;
	a.ssl_version.data=ibuf2;
	ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version);

	a.cipher.type=V_ASN1_OCTET_STRING;
	a.cipher.data=buf;

	if (in->cipher == NULL)
	l=in->cipher_id;
	else
	l=in->cipher->id;
	if (in->ssl_version == SSL2_VERSION)
	{
	a.cipher.length=3;
	buf[0]=((unsigned char)(l>>16L))&0xff;
	buf[1]=((unsigned char)(l>> 8L))&0xff;
	buf[2]=((unsigned char)(l ))&0xff;
	}
	else
	{
	a.cipher.length=2;
	buf[0]=((unsigned char)(l>>8L))&0xff;
	buf[1]=((unsigned char)(l ))&0xff;
	}


	a.master_key.length=in->master_key_length;
	a.master_key.type=V_ASN1_OCTET_STRING;
	a.master_key.data=in->master_key;

	a.session_id.length=in->session_id_length;
	a.session_id.type=V_ASN1_OCTET_STRING;
	a.session_id.data=in->session_id;

	a.session_id_context.length=in->sid_ctx_length;
	a.session_id_context.type=V_ASN1_OCTET_STRING;
	a.session_id_context.data=in->sid_ctx;

	a.key_arg.length=in->key_arg_length;
	a.key_arg.type=V_ASN1_OCTET_STRING;
	a.key_arg.data=in->key_arg;

	if (in->time != 0L)
	{
	a.time.length=LSIZE2;
	a.time.type=V_ASN1_INTEGER;
	a.time.data=ibuf3;
	ASN1_INTEGER_set(&(a.time),in->time);
	}

	if (in->timeout != 0L)
	{
	a.timeout.length=LSIZE2;
	a.timeout.type=V_ASN1_INTEGER;
	a.timeout.data=ibuf4;
	ASN1_INTEGER_set(&(a.timeout),in->timeout);
	}

	if (in->verify_result != X509_V_OK)
	{
	a.verify_result.length=LSIZE2;
	a.verify_result.type=V_ASN1_INTEGER;
	a.verify_result.data=ibuf5;
	ASN1_INTEGER_set(&a.verify_result,in->verify_result);
	}

	if (in->tlsext_hostname)
	{
	a.tlsext_hostname.length=strlen(in->tlsext_hostname);
	a.tlsext_hostname.type=V_ASN1_OCTET_STRING;
	a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname;
	}
	if (in->tlsext_tick)
	{
	a.tlsext_tick.length= in->tlsext_ticklen;
	a.tlsext_tick.type=V_ASN1_OCTET_STRING;
	a.tlsext_tick.data=(unsigned char *)in->tlsext_tick;
	}
	if (in->tlsext_tick_lifetime_hint > 0)
	{
	a.tlsext_tick_lifetime.length=LSIZE2;
	a.tlsext_tick_lifetime.type=V_ASN1_INTEGER;
	a.tlsext_tick_lifetime.data=ibuf6;
	ASN1_INTEGER_set(&a.tlsext_tick_lifetime,in->tlsext_tick_lifetime_hint);
	}
	if (in->psk_identity_hint)
	{
	a.psk_identity_hint.length=strlen(in->psk_identity_hint);
	a.psk_identity_hint.type=V_ASN1_OCTET_STRING;
	a.psk_identity_hint.data=(unsigned char *)(in->psk_identity_hint);
	}
	if (in->psk_identity)
	{
	a.psk_identity.length=strlen(in->psk_identity);
	a.psk_identity.type=V_ASN1_OCTET_STRING;
	a.psk_identity.data=(unsigned char *)(in->psk_identity);
	}

	if (in->peer_sha256_valid)
	{
	a.peer_sha256.length = sizeof(in->peer_sha256);
	a.peer_sha256.type = V_ASN1_OCTET_STRING;
	a.peer_sha256.data = in->peer_sha256;
	}

	if (in->original_handshake_hash_len > 0)
	{
	a.original_handshake_hash.length = in->original_handshake_hash_len;
	a.original_handshake_hash.type = V_ASN1_OCTET_STRING;
	a.original_handshake_hash.data = in->original_handshake_hash;
	}

	M_ASN1_I2D_len(&(a.version), i2d_ASN1_INTEGER);
	M_ASN1_I2D_len(&(a.ssl_version), i2d_ASN1_INTEGER);
	M_ASN1_I2D_len(&(a.cipher), i2d_ASN1_OCTET_STRING);
	M_ASN1_I2D_len(&(a.session_id), i2d_ASN1_OCTET_STRING);
	M_ASN1_I2D_len(&(a.master_key), i2d_ASN1_OCTET_STRING);
	if (in->key_arg_length > 0)
	M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
	if (in->time != 0L)
	M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
	if (in->timeout != 0L)
	M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
	if (in->peer != NULL && in->peer_sha256_valid == 0)
	M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3);
	M_ASN1_I2D_len_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,v4);
	if (in->verify_result != X509_V_OK)
	M_ASN1_I2D_len_EXP_opt(&(a.verify_result),i2d_ASN1_INTEGER,5,v5);

	if (in->tlsext_tick_lifetime_hint > 0)
	M_ASN1_I2D_len_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
	if (in->tlsext_tick)
	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
	if (in->tlsext_hostname)
	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
	if (in->psk_identity_hint)
	M_ASN1_I2D_len_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,7,v7);
	if (in->psk_identity)
	M_ASN1_I2D_len_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,8,v8);
	if (in->peer_sha256_valid)
	M_ASN1_I2D_len_EXP_opt(&(a.peer_sha256),i2d_ASN1_OCTET_STRING,13,v13);
	if (in->original_handshake_hash_len > 0)
	M_ASN1_I2D_len_EXP_opt(&(a.original_handshake_hash),i2d_ASN1_OCTET_STRING,14,v14);

	M_ASN1_I2D_seq_total();

	M_ASN1_I2D_put(&(a.version), i2d_ASN1_INTEGER);
	M_ASN1_I2D_put(&(a.ssl_version), i2d_ASN1_INTEGER);
	M_ASN1_I2D_put(&(a.cipher), i2d_ASN1_OCTET_STRING);
	M_ASN1_I2D_put(&(a.session_id), i2d_ASN1_OCTET_STRING);
	M_ASN1_I2D_put(&(a.master_key), i2d_ASN1_OCTET_STRING);
	if (in->key_arg_length > 0)
	M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
	if (in->time != 0L)
	M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
	if (in->timeout != 0L)
	M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
	if (in->peer != NULL && in->peer_sha256_valid == 0)
	M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3);
	M_ASN1_I2D_put_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,
	v4);
	if (in->verify_result != X509_V_OK)
	M_ASN1_I2D_put_EXP_opt(&a.verify_result,i2d_ASN1_INTEGER,5,v5);
	if (in->tlsext_hostname)
	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
	if (in->psk_identity_hint)
	M_ASN1_I2D_put_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,7,v7);
	if (in->psk_identity)
	M_ASN1_I2D_put_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,8,v8);
	if (in->tlsext_tick_lifetime_hint > 0)
	M_ASN1_I2D_put_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
	if (in->tlsext_tick)
	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
	if (in->peer_sha256_valid)
	M_ASN1_I2D_put_EXP_opt(&(a.peer_sha256),i2d_ASN1_OCTET_STRING,13,v13);
	if (in->original_handshake_hash_len > 0)
	M_ASN1_I2D_put_EXP_opt(&(a.original_handshake_hash),i2d_ASN1_OCTET_STRING,14,v14);

	M_ASN1_I2D_finish();
	}

	SSL_SESSION d2i_SSL_SESSION(SSL_SESSION a, const unsigned char *pp,
	long length)
	{
	int ssl_version=0,i;
	long id;
	ASN1_INTEGER ai,*aip;
	ASN1_OCTET_STRING os,*osp;
	M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new);

	aip= &ai;
	osp= &os;

	M_ASN1_D2I_Init();
	M_ASN1_D2I_start_sequence();

	ai.data=NULL; ai.length=0;
	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }

	/* we don't care about the version right now :-) */
	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
	ssl_version=(int)ASN1_INTEGER_get(aip);
	ret->ssl_version=ssl_version;
	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }

	os.data=NULL; os.length=0;
	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
	if (ssl_version == SSL2_VERSION)
	{
	if (os.length != 3)
	{
	c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
	c.line=__LINE__;
	goto err;
	}
	id=0x02000000L\|
	((unsigned long)os.data[0]<<16L)\|
	((unsigned long)os.data[1]<< 8L)\|
	(unsigned long)os.data[2];
	}
	else if ((ssl_version>>8) >= SSL3_VERSION_MAJOR)
	{
	if (os.length != 2)
	{
	c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
	c.line=__LINE__;
	goto err;
	}
	id=0x03000000L\|
	((unsigned long)os.data[0]<<8L)\|
	(unsigned long)os.data[1];
	}
	else
	{
	c.error=SSL_R_UNKNOWN_SSL_VERSION;
	c.line=__LINE__;
	goto err;
	}

	ret->cipher_id=id;
	ret->cipher = ssl3_get_cipher_by_value(ret->cipher_id & 0xffff);
	if (ret->cipher == NULL)
	{
	c.error=SSL_R_UNSUPPORTED_CIPHER;
	c.line = __LINE__;
	goto err;
	}

	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
	if ((ssl_version>>8) >= SSL3_VERSION_MAJOR)
	i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
	else /* if (ssl_version>>8 == SSL2_VERSION_MAJOR) */
	i=SSL2_MAX_SSL_SESSION_ID_LENGTH;

	if (os.length > i)
	os.length = i;
	if (os.length > (int)sizeof(ret->session_id)) /* can't happen */
	os.length = sizeof(ret->session_id);

	ret->session_id_length=os.length;
	assert(os.length <= (int)sizeof(ret->session_id));
	memcpy(ret->session_id,os.data,os.length);

	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
	if (os.length > SSL_MAX_MASTER_KEY_LENGTH)
	ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
	else
	ret->master_key_length=os.length;
	memcpy(ret->master_key,os.data,ret->master_key_length);

	os.length=0;

	M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
	if (os.length > SSL_MAX_KEY_ARG_LENGTH)
	ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
	else
	ret->key_arg_length=os.length;
	memcpy(ret->key_arg,os.data,ret->key_arg_length);
	if (os.data != NULL) OPENSSL_free(os.data);

	ai.length=0;
	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1);
	if (ai.data != NULL)
	{
	ret->time=ASN1_INTEGER_get(aip);
	OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
	}
	else
	ret->time=(unsigned long)time(NULL);

	ai.length=0;
	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
	if (ai.data != NULL)
	{
	ret->timeout=ASN1_INTEGER_get(aip);
	OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
	}
	else
	ret->timeout=3;

	if (ret->peer != NULL)
	{
	X509_free(ret->peer);
	ret->peer=NULL;
	}
	M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3);

	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,4);

	if(os.data != NULL)
	{
	if (os.length > SSL_MAX_SID_CTX_LENGTH)
	{
	c.error=SSL_R_BAD_LENGTH;
	c.line=__LINE__;
	goto err;
	}
	else
	{
	ret->sid_ctx_length=os.length;
	memcpy(ret->sid_ctx,os.data,os.length);
	}
	OPENSSL_free(os.data); os.data=NULL; os.length=0;
	}
	else
	ret->sid_ctx_length=0;

	ai.length=0;
	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,5);
	if (ai.data != NULL)
	{
	ret->verify_result=ASN1_INTEGER_get(aip);
	OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
	}
	else
	ret->verify_result=X509_V_OK;

	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6);
	if (os.data)
	{
	ret->tlsext_hostname = BUF_strndup((char *)os.data, os.length);
	OPENSSL_free(os.data);
	os.data = NULL;
	os.length = 0;
	}
	else
	ret->tlsext_hostname=NULL;

	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,7);
	if (os.data)
	{
	ret->psk_identity_hint = BUF_strndup((char *)os.data, os.length);
	OPENSSL_free(os.data);
	os.data = NULL;
	os.length = 0;
	}
	else
	ret->psk_identity_hint=NULL;

	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,8);
	if (os.data)
	{
	ret->psk_identity = BUF_strndup((char *)os.data, os.length);
	OPENSSL_free(os.data);
	os.data = NULL;
	os.length = 0;
	}
	else
	ret->psk_identity=NULL;

	ai.length=0;
	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,9);
	if (ai.data != NULL)
	{
	ret->tlsext_tick_lifetime_hint=ASN1_INTEGER_get(aip);
	OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
	}
	else if (ret->tlsext_ticklen && ret->session_id_length)
	ret->tlsext_tick_lifetime_hint = -1;
	else
	ret->tlsext_tick_lifetime_hint=0;
	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,10);
	if (os.data)
	{
	ret->tlsext_tick = os.data;
	ret->tlsext_ticklen = os.length;
	os.data = NULL;
	os.length = 0;
	}
	else
	ret->tlsext_tick=NULL;

	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,13);
	if (os.data && os.length == sizeof(ret->peer_sha256))
	{
	memcpy(ret->peer_sha256, os.data, sizeof(ret->peer_sha256));
	ret->peer_sha256_valid = 1;
	OPENSSL_free(os.data);
	os.data = NULL;
	}

	os.length=0;
	os.data=NULL;
	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,14);
	if (os.data && os.length < (int)sizeof(ret->original_handshake_hash))
	{
	memcpy(ret->original_handshake_hash, os.data, os.length);
	ret->original_handshake_hash_len = os.length;
	OPENSSL_free(os.data);
	os.data = NULL;
	}

	M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
	}