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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  * Copyright 2005 Nokia. All rights reserved.
60  *
61  * The portions of the attached software ("Contribution") is developed by
62  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
63  * license.
64  *
65  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
66  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
67  * support (see RFC 4279) to OpenSSL.
68  *
69  * No patent licenses or other rights except those expressly stated in
70  * the OpenSSL open source license shall be deemed granted or received
71  * expressly, by implication, estoppel, or otherwise.
72  *
73  * No assurances are provided by Nokia that the Contribution does not
74  * infringe the patent or other intellectual property rights of any third
75  * party or that the license provides you with all the necessary rights
76  * to make use of the Contribution.
77  *
78  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
79  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
80  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
81  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
82  * OTHERWISE.
83  */
84 
85 #include <stdio.h>
86 #include <stdlib.h>
87 #include "ssl_locl.h"
88 #include <openssl/asn1_mac.h>
89 #include <openssl/objects.h>
90 #include <openssl/x509.h>
91 
92 typedef struct ssl_session_asn1_st
93 	{
94 	ASN1_INTEGER version;
95 	ASN1_INTEGER ssl_version;
96 	ASN1_OCTET_STRING cipher;
97 	ASN1_OCTET_STRING comp_id;
98 	ASN1_OCTET_STRING master_key;
99 	ASN1_OCTET_STRING session_id;
100 	ASN1_OCTET_STRING session_id_context;
101 	ASN1_OCTET_STRING key_arg;
102 #ifndef OPENSSL_NO_KRB5
103         ASN1_OCTET_STRING krb5_princ;
104 #endif /* OPENSSL_NO_KRB5 */
105 	ASN1_INTEGER time;
106 	ASN1_INTEGER timeout;
107 	ASN1_INTEGER verify_result;
108 #ifndef OPENSSL_NO_TLSEXT
109 	ASN1_OCTET_STRING tlsext_hostname;
110 	ASN1_INTEGER tlsext_tick_lifetime;
111 	ASN1_OCTET_STRING tlsext_tick;
112 #endif /* OPENSSL_NO_TLSEXT */
113 #ifndef OPENSSL_NO_PSK
114 	ASN1_OCTET_STRING psk_identity_hint;
115 	ASN1_OCTET_STRING psk_identity;
116 #endif /* OPENSSL_NO_PSK */
117 	} SSL_SESSION_ASN1;
118 
i2d_SSL_SESSION(SSL_SESSION * in,unsigned char ** pp)119 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
120 	{
121 #define LSIZE2 (sizeof(long)*2)
122 	int v1=0,v2=0,v3=0,v4=0,v5=0,v7=0,v8=0;
123 	unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
124 	unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
125 #ifndef OPENSSL_NO_TLSEXT
126 	int v6=0,v9=0,v10=0;
127 	unsigned char ibuf6[LSIZE2];
128 #endif
129 #ifndef OPENSSL_NO_COMP
130 	unsigned char cbuf;
131 	int v11=0;
132 #endif
133 	long l;
134 	SSL_SESSION_ASN1 a;
135 	M_ASN1_I2D_vars(in);
136 
137 	if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
138 		return(0);
139 
140 	/* Note that I cheat in the following 2 assignments.  I know
141 	 * that if the ASN1_INTEGER passed to ASN1_INTEGER_set
142 	 * is > sizeof(long)+1, the buffer will not be re-OPENSSL_malloc()ed.
143 	 * This is a bit evil but makes things simple, no dynamic allocation
144 	 * to clean up :-) */
145 	a.version.length=LSIZE2;
146 	a.version.type=V_ASN1_INTEGER;
147 	a.version.data=ibuf1;
148 	ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION);
149 
150 	a.ssl_version.length=LSIZE2;
151 	a.ssl_version.type=V_ASN1_INTEGER;
152 	a.ssl_version.data=ibuf2;
153 	ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version);
154 
155 	a.cipher.type=V_ASN1_OCTET_STRING;
156 	a.cipher.data=buf;
157 
158 	if (in->cipher == NULL)
159 		l=in->cipher_id;
160 	else
161 		l=in->cipher->id;
162 	if (in->ssl_version == SSL2_VERSION)
163 		{
164 		a.cipher.length=3;
165 		buf[0]=((unsigned char)(l>>16L))&0xff;
166 		buf[1]=((unsigned char)(l>> 8L))&0xff;
167 		buf[2]=((unsigned char)(l     ))&0xff;
168 		}
169 	else
170 		{
171 		a.cipher.length=2;
172 		buf[0]=((unsigned char)(l>>8L))&0xff;
173 		buf[1]=((unsigned char)(l    ))&0xff;
174 		}
175 
176 #ifndef OPENSSL_NO_COMP
177 	if (in->compress_meth)
178 		{
179 		cbuf = (unsigned char)in->compress_meth;
180 		a.comp_id.length = 1;
181 		a.comp_id.type = V_ASN1_OCTET_STRING;
182 		a.comp_id.data = &cbuf;
183 		}
184 #endif
185 
186 	a.master_key.length=in->master_key_length;
187 	a.master_key.type=V_ASN1_OCTET_STRING;
188 	a.master_key.data=in->master_key;
189 
190 	a.session_id.length=in->session_id_length;
191 	a.session_id.type=V_ASN1_OCTET_STRING;
192 	a.session_id.data=in->session_id;
193 
194 	a.session_id_context.length=in->sid_ctx_length;
195 	a.session_id_context.type=V_ASN1_OCTET_STRING;
196 	a.session_id_context.data=in->sid_ctx;
197 
198 	a.key_arg.length=in->key_arg_length;
199 	a.key_arg.type=V_ASN1_OCTET_STRING;
200 	a.key_arg.data=in->key_arg;
201 
202 #ifndef OPENSSL_NO_KRB5
203 	if (in->krb5_client_princ_len)
204 		{
205 		a.krb5_princ.length=in->krb5_client_princ_len;
206 		a.krb5_princ.type=V_ASN1_OCTET_STRING;
207 		a.krb5_princ.data=in->krb5_client_princ;
208 		}
209 #endif /* OPENSSL_NO_KRB5 */
210 
211 	if (in->time != 0L)
212 		{
213 		a.time.length=LSIZE2;
214 		a.time.type=V_ASN1_INTEGER;
215 		a.time.data=ibuf3;
216 		ASN1_INTEGER_set(&(a.time),in->time);
217 		}
218 
219 	if (in->timeout != 0L)
220 		{
221 		a.timeout.length=LSIZE2;
222 		a.timeout.type=V_ASN1_INTEGER;
223 		a.timeout.data=ibuf4;
224 		ASN1_INTEGER_set(&(a.timeout),in->timeout);
225 		}
226 
227 	if (in->verify_result != X509_V_OK)
228 		{
229 		a.verify_result.length=LSIZE2;
230 		a.verify_result.type=V_ASN1_INTEGER;
231 		a.verify_result.data=ibuf5;
232 		ASN1_INTEGER_set(&a.verify_result,in->verify_result);
233 		}
234 
235 #ifndef OPENSSL_NO_TLSEXT
236 	if (in->tlsext_hostname)
237                 {
238                 a.tlsext_hostname.length=strlen(in->tlsext_hostname);
239                 a.tlsext_hostname.type=V_ASN1_OCTET_STRING;
240                 a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname;
241                 }
242 	if (in->tlsext_tick)
243                 {
244                 a.tlsext_tick.length= in->tlsext_ticklen;
245                 a.tlsext_tick.type=V_ASN1_OCTET_STRING;
246                 a.tlsext_tick.data=(unsigned char *)in->tlsext_tick;
247                 }
248 	if (in->tlsext_tick_lifetime_hint > 0)
249 		{
250 		a.tlsext_tick_lifetime.length=LSIZE2;
251 		a.tlsext_tick_lifetime.type=V_ASN1_INTEGER;
252 		a.tlsext_tick_lifetime.data=ibuf6;
253 		ASN1_INTEGER_set(&a.tlsext_tick_lifetime,in->tlsext_tick_lifetime_hint);
254 		}
255 #endif /* OPENSSL_NO_TLSEXT */
256 #ifndef OPENSSL_NO_PSK
257 	if (in->psk_identity_hint)
258 		{
259 		a.psk_identity_hint.length=strlen(in->psk_identity_hint);
260 		a.psk_identity_hint.type=V_ASN1_OCTET_STRING;
261 		a.psk_identity_hint.data=(unsigned char *)(in->psk_identity_hint);
262 		}
263 	if (in->psk_identity)
264 		{
265 		a.psk_identity.length=strlen(in->psk_identity);
266 		a.psk_identity.type=V_ASN1_OCTET_STRING;
267 		a.psk_identity.data=(unsigned char *)(in->psk_identity);
268 		}
269 #endif /* OPENSSL_NO_PSK */
270 
271 	M_ASN1_I2D_len(&(a.version),		i2d_ASN1_INTEGER);
272 	M_ASN1_I2D_len(&(a.ssl_version),	i2d_ASN1_INTEGER);
273 	M_ASN1_I2D_len(&(a.cipher),		i2d_ASN1_OCTET_STRING);
274 	M_ASN1_I2D_len(&(a.session_id),		i2d_ASN1_OCTET_STRING);
275 	M_ASN1_I2D_len(&(a.master_key),		i2d_ASN1_OCTET_STRING);
276 #ifndef OPENSSL_NO_KRB5
277 	if (in->krb5_client_princ_len)
278         	M_ASN1_I2D_len(&(a.krb5_princ),	i2d_ASN1_OCTET_STRING);
279 #endif /* OPENSSL_NO_KRB5 */
280 	if (in->key_arg_length > 0)
281 		M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
282 	if (in->time != 0L)
283 		M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
284 	if (in->timeout != 0L)
285 		M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
286 	if (in->peer != NULL)
287 		M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3);
288 	M_ASN1_I2D_len_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,v4);
289 	if (in->verify_result != X509_V_OK)
290 		M_ASN1_I2D_len_EXP_opt(&(a.verify_result),i2d_ASN1_INTEGER,5,v5);
291 
292 #ifndef OPENSSL_NO_TLSEXT
293 	if (in->tlsext_tick_lifetime_hint > 0)
294       	 	M_ASN1_I2D_len_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
295 	if (in->tlsext_tick)
296         	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
297 	if (in->tlsext_hostname)
298         	M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
299 #ifndef OPENSSL_NO_COMP
300 	if (in->compress_meth)
301         	M_ASN1_I2D_len_EXP_opt(&(a.comp_id), i2d_ASN1_OCTET_STRING,11,v11);
302 #endif
303 #endif /* OPENSSL_NO_TLSEXT */
304 #ifndef OPENSSL_NO_PSK
305 	if (in->psk_identity_hint)
306         	M_ASN1_I2D_len_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,7,v7);
307 	if (in->psk_identity)
308         	M_ASN1_I2D_len_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,8,v8);
309 #endif /* OPENSSL_NO_PSK */
310 
311 	M_ASN1_I2D_seq_total();
312 
313 	M_ASN1_I2D_put(&(a.version),		i2d_ASN1_INTEGER);
314 	M_ASN1_I2D_put(&(a.ssl_version),	i2d_ASN1_INTEGER);
315 	M_ASN1_I2D_put(&(a.cipher),		i2d_ASN1_OCTET_STRING);
316 	M_ASN1_I2D_put(&(a.session_id),		i2d_ASN1_OCTET_STRING);
317 	M_ASN1_I2D_put(&(a.master_key),		i2d_ASN1_OCTET_STRING);
318 #ifndef OPENSSL_NO_KRB5
319 	if (in->krb5_client_princ_len)
320         	M_ASN1_I2D_put(&(a.krb5_princ),	i2d_ASN1_OCTET_STRING);
321 #endif /* OPENSSL_NO_KRB5 */
322 	if (in->key_arg_length > 0)
323 		M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
324 	if (in->time != 0L)
325 		M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
326 	if (in->timeout != 0L)
327 		M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
328 	if (in->peer != NULL)
329 		M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3);
330 	M_ASN1_I2D_put_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,
331 			       v4);
332 	if (in->verify_result != X509_V_OK)
333 		M_ASN1_I2D_put_EXP_opt(&a.verify_result,i2d_ASN1_INTEGER,5,v5);
334 #ifndef OPENSSL_NO_TLSEXT
335 	if (in->tlsext_hostname)
336         	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
337 #endif /* OPENSSL_NO_TLSEXT */
338 #ifndef OPENSSL_NO_PSK
339 	if (in->psk_identity_hint)
340 		M_ASN1_I2D_put_EXP_opt(&(a.psk_identity_hint), i2d_ASN1_OCTET_STRING,7,v7);
341 	if (in->psk_identity)
342 		M_ASN1_I2D_put_EXP_opt(&(a.psk_identity), i2d_ASN1_OCTET_STRING,8,v8);
343 #endif /* OPENSSL_NO_PSK */
344 #ifndef OPENSSL_NO_TLSEXT
345 	if (in->tlsext_tick_lifetime_hint > 0)
346       	 	M_ASN1_I2D_put_EXP_opt(&a.tlsext_tick_lifetime, i2d_ASN1_INTEGER,9,v9);
347 	if (in->tlsext_tick)
348         	M_ASN1_I2D_put_EXP_opt(&(a.tlsext_tick), i2d_ASN1_OCTET_STRING,10,v10);
349 #endif /* OPENSSL_NO_TLSEXT */
350 #ifndef OPENSSL_NO_COMP
351 	if (in->compress_meth)
352         	M_ASN1_I2D_put_EXP_opt(&(a.comp_id), i2d_ASN1_OCTET_STRING,11,v11);
353 #endif
354 	M_ASN1_I2D_finish();
355 	}
356 
d2i_SSL_SESSION(SSL_SESSION ** a,const unsigned char ** pp,long length)357 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
358 			     long length)
359 	{
360 	int ssl_version=0,i;
361 	long id;
362 	ASN1_INTEGER ai,*aip;
363 	ASN1_OCTET_STRING os,*osp;
364 	M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new);
365 
366 	aip= &ai;
367 	osp= &os;
368 
369 	M_ASN1_D2I_Init();
370 	M_ASN1_D2I_start_sequence();
371 
372 	ai.data=NULL; ai.length=0;
373 	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
374 	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
375 
376 	/* we don't care about the version right now :-) */
377 	M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
378 	ssl_version=(int)ASN1_INTEGER_get(aip);
379 	ret->ssl_version=ssl_version;
380 	if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
381 
382 	os.data=NULL; os.length=0;
383 	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
384 	if (ssl_version == SSL2_VERSION)
385 		{
386 		if (os.length != 3)
387 			{
388 			c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
389 			goto err;
390 			}
391 		id=0x02000000L|
392 			((unsigned long)os.data[0]<<16L)|
393 			((unsigned long)os.data[1]<< 8L)|
394 			 (unsigned long)os.data[2];
395 		}
396 	else if ((ssl_version>>8) >= SSL3_VERSION_MAJOR)
397 		{
398 		if (os.length != 2)
399 			{
400 			c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
401 			goto err;
402 			}
403 		id=0x03000000L|
404 			((unsigned long)os.data[0]<<8L)|
405 			 (unsigned long)os.data[1];
406 		}
407 	else
408 		{
409 		c.error=SSL_R_UNKNOWN_SSL_VERSION;
410 		goto err;
411 		}
412 
413 	ret->cipher=NULL;
414 	ret->cipher_id=id;
415 
416 	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
417 	if ((ssl_version>>8) >= SSL3_VERSION_MAJOR)
418 		i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
419 	else /* if (ssl_version>>8 == SSL2_VERSION_MAJOR) */
420 		i=SSL2_MAX_SSL_SESSION_ID_LENGTH;
421 
422 	if (os.length > i)
423 		os.length = i;
424 	if (os.length > (int)sizeof(ret->session_id)) /* can't happen */
425 		os.length = sizeof(ret->session_id);
426 
427 	ret->session_id_length=os.length;
428 	OPENSSL_assert(os.length <= (int)sizeof(ret->session_id));
429 	memcpy(ret->session_id,os.data,os.length);
430 
431 	M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
432 	if (os.length > SSL_MAX_MASTER_KEY_LENGTH)
433 		ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
434 	else
435 		ret->master_key_length=os.length;
436 	memcpy(ret->master_key,os.data,ret->master_key_length);
437 
438 	os.length=0;
439 
440 #ifndef OPENSSL_NO_KRB5
441 	os.length=0;
442 	M_ASN1_D2I_get_opt(osp,d2i_ASN1_OCTET_STRING,V_ASN1_OCTET_STRING);
443 	if (os.data)
444 		{
445         	if (os.length > SSL_MAX_KRB5_PRINCIPAL_LENGTH)
446             		ret->krb5_client_princ_len=0;
447 		else
448 			ret->krb5_client_princ_len=os.length;
449 		memcpy(ret->krb5_client_princ,os.data,ret->krb5_client_princ_len);
450 		OPENSSL_free(os.data);
451 		os.data = NULL;
452 		os.length = 0;
453 		}
454 	else
455 		ret->krb5_client_princ_len=0;
456 #endif /* OPENSSL_NO_KRB5 */
457 
458 	M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
459 	if (os.length > SSL_MAX_KEY_ARG_LENGTH)
460 		ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
461 	else
462 		ret->key_arg_length=os.length;
463 	memcpy(ret->key_arg,os.data,ret->key_arg_length);
464 	if (os.data != NULL) OPENSSL_free(os.data);
465 
466 	ai.length=0;
467 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1);
468 	if (ai.data != NULL)
469 		{
470 		ret->time=ASN1_INTEGER_get(aip);
471 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
472 		}
473 	else
474 		ret->time=(unsigned long)time(NULL);
475 
476 	ai.length=0;
477 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
478 	if (ai.data != NULL)
479 		{
480 		ret->timeout=ASN1_INTEGER_get(aip);
481 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
482 		}
483 	else
484 		ret->timeout=3;
485 
486 	if (ret->peer != NULL)
487 		{
488 		X509_free(ret->peer);
489 		ret->peer=NULL;
490 		}
491 	M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3);
492 
493 	os.length=0;
494 	os.data=NULL;
495 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,4);
496 
497 	if(os.data != NULL)
498 	    {
499 	    if (os.length > SSL_MAX_SID_CTX_LENGTH)
500 		{
501 		c.error=SSL_R_BAD_LENGTH;
502 		goto err;
503 		}
504 	    else
505 		{
506 		ret->sid_ctx_length=os.length;
507 		memcpy(ret->sid_ctx,os.data,os.length);
508 		}
509 	    OPENSSL_free(os.data); os.data=NULL; os.length=0;
510 	    }
511 	else
512 	    ret->sid_ctx_length=0;
513 
514 	ai.length=0;
515 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,5);
516 	if (ai.data != NULL)
517 		{
518 		ret->verify_result=ASN1_INTEGER_get(aip);
519 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
520 		}
521 	else
522 		ret->verify_result=X509_V_OK;
523 
524 #ifndef OPENSSL_NO_TLSEXT
525 	os.length=0;
526 	os.data=NULL;
527 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6);
528 	if (os.data)
529 		{
530 		ret->tlsext_hostname = BUF_strndup((char *)os.data, os.length);
531 		OPENSSL_free(os.data);
532 		os.data = NULL;
533 		os.length = 0;
534 		}
535 	else
536 		ret->tlsext_hostname=NULL;
537 #endif /* OPENSSL_NO_TLSEXT */
538 
539 #ifndef OPENSSL_NO_PSK
540 	os.length=0;
541 	os.data=NULL;
542 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,7);
543 	if (os.data)
544 		{
545 		ret->psk_identity_hint = BUF_strndup((char *)os.data, os.length);
546 		OPENSSL_free(os.data);
547 		os.data = NULL;
548 		os.length = 0;
549 		}
550 	else
551 		ret->psk_identity_hint=NULL;
552 #endif /* OPENSSL_NO_PSK */
553 
554 #ifndef OPENSSL_NO_TLSEXT
555 	ai.length=0;
556 	M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,9);
557 	if (ai.data != NULL)
558 		{
559 		ret->tlsext_tick_lifetime_hint=ASN1_INTEGER_get(aip);
560 		OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
561 		}
562 	else if (ret->tlsext_ticklen && ret->session_id_length)
563 		ret->tlsext_tick_lifetime_hint = -1;
564 	else
565 		ret->tlsext_tick_lifetime_hint=0;
566 	os.length=0;
567 	os.data=NULL;
568 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,10);
569 	if (os.data)
570 		{
571 		ret->tlsext_tick = os.data;
572 		ret->tlsext_ticklen = os.length;
573 		os.data = NULL;
574 		os.length = 0;
575 		}
576 	else
577 		ret->tlsext_tick=NULL;
578 #endif /* OPENSSL_NO_TLSEXT */
579 #ifndef OPENSSL_NO_COMP
580 	os.length=0;
581 	os.data=NULL;
582 	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,11);
583 	if (os.data)
584 		{
585 		ret->compress_meth = os.data[0];
586 		OPENSSL_free(os.data);
587 		os.data = NULL;
588 		}
589 #endif
590 
591 	M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
592 	}
593