1: /* ssl/ssl_asn1.c */
    2: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
    3:  * All rights reserved.
    4:  *
    5:  * This package is an SSL implementation written
    6:  * by Eric Young (eay@cryptsoft.com).
    7:  * The implementation was written so as to conform with Netscapes SSL.
    8:  * 
    9:  * This library is free for commercial and non-commercial use as long as
   10:  * the following conditions are aheared to.  The following conditions
   11:  * apply to all code found in this distribution, be it the RC4, RSA,
   12:  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   13:  * included with this distribution is covered by the same copyright terms
   14:  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   15:  * 
   16:  * Copyright remains Eric Young's, and as such any Copyright notices in
   17:  * the code are not to be removed.
   18:  * If this package is used in a product, Eric Young should be given attribution
   19:  * as the author of the parts of the library used.
   20:  * This can be in the form of a textual message at program startup or
   21:  * in documentation (online or textual) provided with the package.
   22:  * 
   23:  * Redistribution and use in source and binary forms, with or without
   24:  * modification, are permitted provided that the following conditions
   25:  * are met:
   26:  * 1. Redistributions of source code must retain the copyright
   27:  *    notice, this list of conditions and the following disclaimer.
   28:  * 2. Redistributions in binary form must reproduce the above copyright
   29:  *    notice, this list of conditions and the following disclaimer in the
   30:  *    documentation and/or other materials provided with the distribution.
   31:  * 3. All advertising materials mentioning features or use of this software
   32:  *    must display the following acknowledgement:
   33:  *    "This product includes cryptographic software written by
   34:  *     Eric Young (eay@cryptsoft.com)"
   35:  *    The word 'cryptographic' can be left out if the rouines from the library
   36:  *    being used are not cryptographic related :-).
   37:  * 4. If you include any Windows specific code (or a derivative thereof) from 
   38:  *    the apps directory (application code) you must include an acknowledgement:
   39:  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   40:  * 
   41:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   42:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   43:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   44:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   45:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   46:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   47:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   48:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   49:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   50:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   51:  * SUCH DAMAGE.
   52:  * 
   53:  * The licence and distribution terms for any publically available version or
   54:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
   55:  * copied and put under another distribution licence
   56:  * [including the GNU Public Licence.]
   57:  */
   58: 
   59: #include <stdio.h>
   60: #include <stdlib.h>
   61: #include "ssl_locl.h"
   62: #include <openssl/asn1_mac.h>
   63: #include <openssl/objects.h>
   64: #include <openssl/x509.h>
   65: 
   66: typedef struct ssl_session_asn1_st
   67:         {
   68:         ASN1_INTEGER version;
   69:         ASN1_INTEGER ssl_version;
   70:         ASN1_OCTET_STRING cipher;
   71:         ASN1_OCTET_STRING master_key;
   72:         ASN1_OCTET_STRING session_id;
   73:         ASN1_OCTET_STRING session_id_context;
   74:         ASN1_OCTET_STRING key_arg;
   75: #ifndef OPENSSL_NO_KRB5
   76:         ASN1_OCTET_STRING krb5_princ;
   77: #endif /* OPENSSL_NO_KRB5 */
   78:         ASN1_INTEGER time;
   79:         ASN1_INTEGER timeout;
   80:         ASN1_INTEGER verify_result;
   81: #ifndef OPENSSL_NO_TLSEXT
   82:         ASN1_OCTET_STRING tlsext_hostname;
   83:         ASN1_INTEGER tlsext_tick_lifetime;
   84:         ASN1_OCTET_STRING tlsext_tick;
   85: #endif /* OPENSSL_NO_TLSEXT */
   86:         } SSL_SESSION_ASN1;
   87: 
   88: int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
   89:         {
   90: #define LSIZE2 (sizeof(long)*2)
   91:         int v1=0,v2=0,v3=0,v4=0,v5=0;
   92:         unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
   93:         unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
   94: #ifndef OPENSSL_NO_TLSEXT
   95:         int v6=0,v9=0,v10=0;
   96:         unsigned char ibuf6[LSIZE2];
   97: #endif
   98:         long l;
   99:         SSL_SESSION_ASN1 a;
  100:         M_ASN1_I2D_vars(in);
  101: 
  102:         if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
  103:                 return(0);
  104: 
  105:         /* Note that I cheat in the following 2 assignments.  I know
  106:          * that if the ASN1_INTEGER passed to ASN1_INTEGER_set
  107:          * is > sizeof(long)+1, the buffer will not be re-OPENSSL_malloc()ed.
  108:          * This is a bit evil but makes things simple, no dynamic allocation
  109:          * to clean up :-) */
  110:         a.version.length=LSIZE2;
  111:         a.version.type=V_ASN1_INTEGER;
  112:         a.version.data=ibuf1;
  113:         ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION);
  114: 
  115:         a.ssl_version.length=LSIZE2;
  116:         a.ssl_version.type=V_ASN1_INTEGER;
  117:         a.ssl_version.data=ibuf2;
  118:         ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version);
  119: 
  120:         a.cipher.type=V_ASN1_OCTET_STRING;
  121:         a.cipher.data=buf;
  122: 
  123:         if (in->cipher == NULL)
  124:                 l=in->cipher_id;
  125:         else
  126:                 l=in->cipher->id;
  127:         if (in->ssl_version == SSL2_VERSION)
  128:                 {
  129:                 a.cipher.length=3;
  130:                 buf[0]=((unsigned char)(l>>16L))&0xff;
  131:                 buf[1]=((unsigned char)(l>> 8L))&0xff;
  132:                 buf[2]=((unsigned char)(l     ))&0xff;
  133:                 }
  134:         else
  135:                 {
  136:                 a.cipher.length=2;
  137:                 buf[0]=((unsigned char)(l>>8L))&0xff;
  138:                 buf[1]=((unsigned char)(l    ))&0xff;
  139:                 }
  140: 
  141:         a.master_key.length=in->master_key_length;
  142:         a.master_key.type=V_ASN1_OCTET_STRING;
  143:         a.master_key.data=in->master_key;
  144: 
  145:         a.session_id.length=in->session_id_length;
  146:         a.session_id.type=V_ASN1_OCTET_STRING;
  147:         a.session_id.data=in->session_id;
  148: 
  149:         a.session_id_context.length=in->sid_ctx_length;
  150:         a.session_id_context.type=V_ASN1_OCTET_STRING;
  151:         a.session_id_context.data=in->sid_ctx;
  152: 
  153:         a.key_arg.length=in->key_arg_length;
  154:         a.key_arg.type=V_ASN1_OCTET_STRING;
  155:         a.key_arg.data=in->key_arg;
  156: 
  157: #ifndef OPENSSL_NO_KRB5
  158:         if (in->krb5_client_princ_len)
  159:                 {
  160:                 a.krb5_princ.length=in->krb5_client_princ_len;
  161:                 a.krb5_princ.type=V_ASN1_OCTET_STRING;
  162:                 a.krb5_princ.data=in->krb5_client_princ;
  163:                 }
  164: #endif /* OPENSSL_NO_KRB5 */
  165:  
  166:         if (in->time != 0L)
  167:                 {
  168:                 a.time.length=LSIZE2;
  169:                 a.time.type=V_ASN1_INTEGER;
  170:                 a.time.data=ibuf3;
  171:                 ASN1_INTEGER_set(&(a.time),in->time);
  172:                 }
  173: 
  174:         if (in->timeout != 0L)
  175:                 {
  176:                 a.timeout.length=LSIZE2;
  177:                 a.timeout.type=V_ASN1_INTEGER;
  178:                 a.timeout.data=ibuf4;
  179:                 ASN1_INTEGER_set(&(a.timeout),in->timeout);
  180:                 }
  181: 
  182:         if (in->verify_result != X509_V_OK)
  183:                 {
  184:                 a.verify_result.length=LSIZE2;
  185:                 a.verify_result.type=V_ASN1_INTEGER;
  186:                 a.verify_result.data=ibuf5;
  187:                 ASN1_INTEGER_set(&a.verify_result,in->verify_result);
  188:                 }
  189: 
  190: #ifndef OPENSSL_NO_TLSEXT
  191:         if (in->tlsext_hostname)
  192:                 {
  193:                 a.tlsext_hostname.length=strlen(in->tlsext_hostname);
  194:                 a.tlsext_hostname.type=V_ASN1_OCTET_STRING;
  195:                 a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname;
  196:                 }
  197:         if (in->tlsext_tick)
  198:                 {
  199:                 a.tlsext_tick.length= in->tlsext_ticklen;
  200:                 a.tlsext_tick.type=V_ASN1_OCTET_STRING;
  201:                 a.tlsext_tick.data=(unsigned char *)in->tlsext_tick;
  202:                 /* If we have a ticket set session ID to empty because
  203:                  * it will be bogus. 
  204:                  */
  205:                 if (in->tlsext_ticklen)
  206:                         a.session_id.length=0;
  207:                 }
  208:         if (in->tlsext_tick_lifetime_hint != 0)
  209:                 {
  210:                 a.tlsext_tick_lifetime.length=LSIZE2;
  211:                 a.tlsext_tick_lifetime.type=V_ASN1_INTEGER;
  212:                 a.tlsext_tick_lifetime.data=ibuf6;
  213:                 ASN1_INTEGER_set(&a.tlsext_tick_lifetime,in->tlsext_tick_lifetime_hint);
  214:                 }
  215: #endif /* OPENSSL_NO_TLSEXT */
  216:         M_ASN1_I2D_len(&(a.version),           i2d_ASN1_INTEGER);
  217:         M_ASN1_I2D_len(&(a.ssl_version),       i2d_ASN1_INTEGER);
  218:         M_ASN1_I2D_len(&(a.cipher),            i2d_ASN1_OCTET_STRING);
  219:         M_ASN1_I2D_len(&(a.session_id),                i2d_ASN1_OCTET_STRING);
  220:         M_ASN1_I2D_len(&(a.master_key),                i2d_ASN1_OCTET_STRING);
  221: #ifndef OPENSSL_NO_KRB5
  222:         if (in->krb5_client_princ_len)
  223:                 M_ASN1_I2D_len(&(a.krb5_princ),        i2d_ASN1_OCTET_STRING);
  224: #endif /* OPENSSL_NO_KRB5 */
  225:         if (in->key_arg_length > 0)
  226:                 M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
  227:         if (in->time != 0L)
  228:                 M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
  229:         if (in->timeout != 0L)
  230:                 M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
  231:         if (in->peer != NULL)
  232:                 M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3);
  233:         M_ASN1_I2D_len_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,v4);
  234:         if (in->verify_result != X509_V_OK)
  235:                 M_ASN1_I2D_len_EXP_opt(&(a.verify_result),i2d_ASN1_INTEGER,5,v5);
  236: 
  237: #ifndef OPENSSL_NO_TLSEXT
  238:         if (in->tlsext_tick_lifetime_hint)
  239:                  M_ASN1_I2D_len_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
  240:         if (in->tlsext_tick)
  241:                 M_ASN1_I2D_len_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
  242:         if (in->tlsext_hostname)
  243:                 M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
  244: #endif /* OPENSSL_NO_TLSEXT */
  245:         M_ASN1_I2D_seq_total();
  246: 
  247:         M_ASN1_I2D_put(&(a.version),           i2d_ASN1_INTEGER);
  248:         M_ASN1_I2D_put(&(a.ssl_version),       i2d_ASN1_INTEGER);
  249:         M_ASN1_I2D_put(&(a.cipher),            i2d_ASN1_OCTET_STRING);
  250:         M_ASN1_I2D_put(&(a.session_id),                i2d_ASN1_OCTET_STRING);
  251:         M_ASN1_I2D_put(&(a.master_key),                i2d_ASN1_OCTET_STRING);
  252: #ifndef OPENSSL_NO_KRB5
  253:         if (in->krb5_client_princ_len)
  254:                 M_ASN1_I2D_put(&(a.krb5_princ),        i2d_ASN1_OCTET_STRING);
  255: #endif /* OPENSSL_NO_KRB5 */
  256:         if (in->key_arg_length > 0)
  257:                 M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
  258:         if (in->time != 0L)
  259:                 M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
  260:         if (in->timeout != 0L)
  261:                 M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
  262:         if (in->peer != NULL)
  263:                 M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3);
  264:         M_ASN1_I2D_put_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,
  265:                                v4);
  266:         if (in->verify_result != X509_V_OK)
  267:                 M_ASN1_I2D_put_EXP_opt(&a.verify_result,i2d_ASN1_INTEGER,5,v5);
  268: #ifndef OPENSSL_NO_TLSEXT
  269:         if (in->tlsext_hostname)
  270:                 M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
  271:         if (in->tlsext_tick_lifetime_hint)
  272:                  M_ASN1_I2D_put_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
  273:         if (in->tlsext_tick)
  274:                 M_ASN1_I2D_put_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
  275: #endif /* OPENSSL_NO_TLSEXT */
  276:         M_ASN1_I2D_finish();
  277:         }
  278: 
  279: SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
  280:              long length)
  281:         {
  282:         int version,ssl_version=0,i;
  283:         long id;
  284:         ASN1_INTEGER ai,*aip;
  285:         ASN1_OCTET_STRING os,*osp;
  286:         M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new);
  287: 
  288:         aip= &ai;
  289:         osp= &os;
  290: 
  291:         M_ASN1_D2I_Init();
  292:         M_ASN1_D2I_start_sequence();
  293: 
  294:         ai.data=NULL; ai.length=0;
  295:         M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
  296:         version=(int)ASN1_INTEGER_get(aip);
  297:         if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
  298: 
  299:         /* we don't care about the version right now :-) */
  300:         M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
  301:         ssl_version=(int)ASN1_INTEGER_get(aip);
  302:         ret->ssl_version=ssl_version;
  303:         if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
  304: 
  305:         os.data=NULL; os.length=0;
  306:         M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
  307:         if (ssl_version == SSL2_VERSION)
  308:                 {
  309:                 if (os.length != 3)
  310:                         {
  311:                         c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
  312:                         goto err;
  313:                         }
  314:                 id=0x02000000L|
  315:                         ((unsigned long)os.data[0]<<16L)|
  316:                         ((unsigned long)os.data[1]<< 8L)|
  317:                          (unsigned long)os.data[2];
  318:                 }
  319:         else if ((ssl_version>>8) == SSL3_VERSION_MAJOR)
  320:                 {
  321:                 if (os.length != 2)
  322:                         {
  323:                         c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
  324:                         goto err;
  325:                         }
  326:                 id=0x03000000L|
  327:                         ((unsigned long)os.data[0]<<8L)|
  328:                          (unsigned long)os.data[1];
  329:                 }
  330:         else
  331:                 {
  332:                 SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_UNKNOWN_SSL_VERSION);
  333:                 return(NULL);
  334:                 }
  335:         
  336:         ret->cipher=NULL;
  337:         ret->cipher_id=id;
  338: 
  339:         M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
  340:         if ((ssl_version>>8) == SSL3_VERSION_MAJOR)
  341:                 i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
  342:         else /* if (ssl_version>>8 == SSL2_VERSION_MAJOR) */
  343:                 i=SSL2_MAX_SSL_SESSION_ID_LENGTH;
  344: 
  345:         if (os.length > i)
  346:                 os.length = i;
  347:         if (os.length > (int)sizeof(ret->session_id)) /* can't happen */
  348:                 os.length = sizeof(ret->session_id);
  349: 
  350:         ret->session_id_length=os.length;
  351:         OPENSSL_assert(os.length <= (int)sizeof(ret->session_id));
  352:         memcpy(ret->session_id,os.data,os.length);
  353: 
  354:         M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
  355:         if (ret->master_key_length > SSL_MAX_MASTER_KEY_LENGTH)
  356:                 ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
  357:         else
  358:                 ret->master_key_length=os.length;
  359:         memcpy(ret->master_key,os.data,ret->master_key_length);
  360: 
  361:         os.length=0;
  362: 
  363: #ifndef OPENSSL_NO_KRB5
  364:         os.length=0;
  365:         M_ASN1_D2I_get_opt(osp,d2i_ASN1_OCTET_STRING,V_ASN1_OCTET_STRING);
  366:         if (os.data)
  367:                 {
  368:                 if (os.length > SSL_MAX_KRB5_PRINCIPAL_LENGTH)
  369:                         ret->krb5_client_princ_len=0;
  370:                 else
  371:                         ret->krb5_client_princ_len=os.length;
  372:                 memcpy(ret->krb5_client_princ,os.data,ret->krb5_client_princ_len);
  373:                 OPENSSL_free(os.data);
  374:                 os.data = NULL;
  375:                 os.length = 0;
  376:                 }
  377:         else
  378:                 ret->krb5_client_princ_len=0;
  379: #endif /* OPENSSL_NO_KRB5 */
  380: 
  381:         M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
  382:         if (os.length > SSL_MAX_KEY_ARG_LENGTH)
  383:                 ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
  384:         else
  385:                 ret->key_arg_length=os.length;
  386:         memcpy(ret->key_arg,os.data,ret->key_arg_length);
  387:         if (os.data != NULL) OPENSSL_free(os.data);
  388: 
  389:         ai.length=0;
  390:         M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1);
  391:         if (ai.data != NULL)
  392:                 {
  393:                 ret->time=ASN1_INTEGER_get(aip);
  394:                 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
  395:                 }
  396:         else
  397:                 ret->time=(unsigned long)time(NULL);
  398: 
  399:         ai.length=0;
  400:         M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
  401:         if (ai.data != NULL)
  402:                 {
  403:                 ret->timeout=ASN1_INTEGER_get(aip);
  404:                 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
  405:                 }
  406:         else
  407:                 ret->timeout=3;
  408: 
  409:         if (ret->peer != NULL)
  410:                 {
  411:                 X509_free(ret->peer);
  412:                 ret->peer=NULL;
  413:                 }
  414:         M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3);
  415: 
  416:         os.length=0;
  417:         os.data=NULL;
  418:         M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,4);
  419: 
  420:         if(os.data != NULL)
  421:             {
  422:             if (os.length > SSL_MAX_SID_CTX_LENGTH)
  423:                 {
  424:                 ret->sid_ctx_length=os.length;
  425:                 SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_BAD_LENGTH);
  426:                 }
  427:             else
  428:                 {
  429:                 ret->sid_ctx_length=os.length;
  430:                 memcpy(ret->sid_ctx,os.data,os.length);
  431:                 }
  432:             OPENSSL_free(os.data); os.data=NULL; os.length=0;
  433:             }
  434:         else
  435:             ret->sid_ctx_length=0;
  436: 
  437:         ai.length=0;
  438:         M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,5);
  439:         if (ai.data != NULL)
  440:                 {
  441:                 ret->verify_result=ASN1_INTEGER_get(aip);
  442:                 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
  443:                 }
  444:         else
  445:                 ret->verify_result=X509_V_OK;
  446: 
  447: #ifndef OPENSSL_NO_TLSEXT
  448:         os.length=0;
  449:         os.data=NULL;
  450:         M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6);
  451:         if (os.data)
  452:                 {
  453:                 ret->tlsext_hostname = BUF_strndup((char *)os.data, os.length);
  454:                 OPENSSL_free(os.data);
  455:                 os.data = NULL;
  456:                 os.length = 0;
  457:                 }
  458:         else
  459:                 ret->tlsext_hostname=NULL;
  460:         ai.length=0;
  461:         M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,9);
  462:         if (ai.data != NULL)
  463:                 {
  464:                 ret->tlsext_tick_lifetime_hint=ASN1_INTEGER_get(aip);
  465:                 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
  466:                 }
  467:         else
  468:                 ret->tlsext_tick_lifetime_hint=0;
  469:         os.length=0;
  470:         os.data=NULL;
  471:         M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,10);
  472:         if (os.data)
  473:                 {
  474:                 ret->tlsext_tick = os.data;
  475:                 ret->tlsext_ticklen = os.length;
  476:                 os.data = NULL;
  477:                 os.length = 0;
  478: #if 0
  479:                 /* There are two ways to detect a resumed ticket sesion.
  480:                  * One is to set a random session ID and then the server
  481:                  * must return a match in ServerHello. This allows the normal
  482:                  * client session ID matching to work.
  483:                  */ 
  484:                 if (ret->session_id_length == 0)
  485:                         {
  486:                         ret->session_id_length=SSL3_MAX_SSL_SESSION_ID_LENGTH;
  487:                         RAND_pseudo_bytes(ret->session_id,
  488:                                                 ret->session_id_length);
  489:                         }
  490: #endif
  491:                 }
  492:         else
  493:                 ret->tlsext_tick=NULL;
  494: #endif /* OPENSSL_NO_TLSEXT */
  495: 
  496:         M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
  497:         }