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diff --git a/src/lib/libssl/ssl_asn1.c b/src/lib/libssl/ssl_asn1.c
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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#include <stdio.h>
60#include <stdlib.h>
61#include <openssl/asn1_mac.h>
62#include <openssl/objects.h>
63#include "ssl_locl.h"
64
65typedef struct ssl_session_asn1_st
66 {
67 ASN1_INTEGER version;
68 ASN1_INTEGER ssl_version;
69 ASN1_OCTET_STRING cipher;
70 ASN1_OCTET_STRING master_key;
71 ASN1_OCTET_STRING session_id;
72 ASN1_OCTET_STRING session_id_context;
73 ASN1_OCTET_STRING key_arg;
74 ASN1_INTEGER time;
75 ASN1_INTEGER timeout;
76 } SSL_SESSION_ASN1;
77
78int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
79 {
80#define LSIZE2 (sizeof(long)*2)
81 int v1=0,v2=0,v3=0,v4=0;
82 unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
83 unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2];
84 long l;
85 SSL_SESSION_ASN1 a;
86 M_ASN1_I2D_vars(in);
87
88 if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
89 return(0);
90
91 /* Note that I cheat in the following 2 assignments. I know
92 * that if the ASN1_INTERGER passed to ASN1_INTEGER_set
93 * is > sizeof(long)+1, the buffer will not be re-Malloc()ed.
94 * This is a bit evil but makes things simple, no dynamic allocation
95 * to clean up :-) */
96 a.version.length=LSIZE2;
97 a.version.type=V_ASN1_INTEGER;
98 a.version.data=ibuf1;
99 ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION);
100
101 a.ssl_version.length=LSIZE2;
102 a.ssl_version.type=V_ASN1_INTEGER;
103 a.ssl_version.data=ibuf2;
104 ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version);
105
106 a.cipher.type=V_ASN1_OCTET_STRING;
107 a.cipher.data=buf;
108
109 if (in->cipher == NULL)
110 l=in->cipher_id;
111 else
112 l=in->cipher->id;
113 if (in->ssl_version == SSL2_VERSION)
114 {
115 a.cipher.length=3;
116 buf[0]=((unsigned char)(l>>16L))&0xff;
117 buf[1]=((unsigned char)(l>> 8L))&0xff;
118 buf[2]=((unsigned char)(l ))&0xff;
119 }
120 else
121 {
122 a.cipher.length=2;
123 buf[0]=((unsigned char)(l>>8L))&0xff;
124 buf[1]=((unsigned char)(l ))&0xff;
125 }
126
127 a.master_key.length=in->master_key_length;
128 a.master_key.type=V_ASN1_OCTET_STRING;
129 a.master_key.data=in->master_key;
130
131 a.session_id.length=in->session_id_length;
132 a.session_id.type=V_ASN1_OCTET_STRING;
133 a.session_id.data=in->session_id;
134
135 a.session_id_context.length=in->sid_ctx_length;
136 a.session_id_context.type=V_ASN1_OCTET_STRING;
137 a.session_id_context.data=in->sid_ctx;
138
139 a.key_arg.length=in->key_arg_length;
140 a.key_arg.type=V_ASN1_OCTET_STRING;
141 a.key_arg.data=in->key_arg;
142
143 if (in->time != 0L)
144 {
145 a.time.length=LSIZE2;
146 a.time.type=V_ASN1_INTEGER;
147 a.time.data=ibuf3;
148 ASN1_INTEGER_set(&(a.time),in->time);
149 }
150
151 if (in->timeout != 0L)
152 {
153 a.timeout.length=LSIZE2;
154 a.timeout.type=V_ASN1_INTEGER;
155 a.timeout.data=ibuf4;
156 ASN1_INTEGER_set(&(a.timeout),in->timeout);
157 }
158
159 M_ASN1_I2D_len(&(a.version), i2d_ASN1_INTEGER);
160 M_ASN1_I2D_len(&(a.ssl_version), i2d_ASN1_INTEGER);
161 M_ASN1_I2D_len(&(a.cipher), i2d_ASN1_OCTET_STRING);
162 M_ASN1_I2D_len(&(a.session_id), i2d_ASN1_OCTET_STRING);
163 M_ASN1_I2D_len(&(a.master_key), i2d_ASN1_OCTET_STRING);
164 if (in->key_arg_length > 0)
165 M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
166 if (in->time != 0L)
167 M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
168 if (in->timeout != 0L)
169 M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
170 if (in->peer != NULL)
171 M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3);
172 M_ASN1_I2D_len_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,v4);
173
174 M_ASN1_I2D_seq_total();
175
176 M_ASN1_I2D_put(&(a.version), i2d_ASN1_INTEGER);
177 M_ASN1_I2D_put(&(a.ssl_version), i2d_ASN1_INTEGER);
178 M_ASN1_I2D_put(&(a.cipher), i2d_ASN1_OCTET_STRING);
179 M_ASN1_I2D_put(&(a.session_id), i2d_ASN1_OCTET_STRING);
180 M_ASN1_I2D_put(&(a.master_key), i2d_ASN1_OCTET_STRING);
181 if (in->key_arg_length > 0)
182 M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
183 if (in->time != 0L)
184 M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
185 if (in->timeout != 0L)
186 M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
187 if (in->peer != NULL)
188 M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3);
189 M_ASN1_I2D_put_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,
190 v4);
191
192 M_ASN1_I2D_finish();
193 }
194
195SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, unsigned char **pp,
196 long length)
197 {
198 int version,ssl_version=0,i;
199 long id;
200 ASN1_INTEGER ai,*aip;
201 ASN1_OCTET_STRING os,*osp;
202 M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new);
203
204 aip= &ai;
205 osp= &os;
206
207 M_ASN1_D2I_Init();
208 M_ASN1_D2I_start_sequence();
209
210 ai.data=NULL; ai.length=0;
211 M_ASN1_D2I_get(aip,d2i_ASN1_INTEGER);
212 version=(int)ASN1_INTEGER_get(aip);
213 if (ai.data != NULL) { Free(ai.data); ai.data=NULL; ai.length=0; }
214
215 /* we don't care about the version right now :-) */
216 M_ASN1_D2I_get(aip,d2i_ASN1_INTEGER);
217 ssl_version=(int)ASN1_INTEGER_get(aip);
218 ret->ssl_version=ssl_version;
219 if (ai.data != NULL) { Free(ai.data); ai.data=NULL; ai.length=0; }
220
221 os.data=NULL; os.length=0;
222 M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING);
223 if (ssl_version == SSL2_VERSION)
224 {
225 if (os.length != 3)
226 {
227 c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
228 goto err;
229 }
230 id=0x02000000L|
231 ((unsigned long)os.data[0]<<16L)|
232 ((unsigned long)os.data[1]<< 8L)|
233 (unsigned long)os.data[2];
234 }
235 else if ((ssl_version>>8) == 3)
236 {
237 if (os.length != 2)
238 {
239 c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
240 goto err;
241 }
242 id=0x03000000L|
243 ((unsigned long)os.data[0]<<8L)|
244 (unsigned long)os.data[1];
245 }
246 else
247 {
248 SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_UNKNOWN_SSL_VERSION);
249 return(NULL);
250 }
251
252 ret->cipher=NULL;
253 ret->cipher_id=id;
254
255 M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING);
256 if ((ssl_version>>8) == SSL3_VERSION)
257 i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
258 else /* if (ssl_version == SSL2_VERSION) */
259 i=SSL2_MAX_SSL_SESSION_ID_LENGTH;
260
261 if (os.length > i)
262 os.length=i;
263
264 ret->session_id_length=os.length;
265 memcpy(ret->session_id,os.data,os.length);
266
267 M_ASN1_D2I_get(osp,d2i_ASN1_OCTET_STRING);
268 if (ret->master_key_length > SSL_MAX_MASTER_KEY_LENGTH)
269 ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
270 else
271 ret->master_key_length=os.length;
272 memcpy(ret->master_key,os.data,ret->master_key_length);
273
274 os.length=0;
275 M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
276 if (os.length > SSL_MAX_KEY_ARG_LENGTH)
277 ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
278 else
279 ret->key_arg_length=os.length;
280 memcpy(ret->key_arg,os.data,ret->key_arg_length);
281 if (os.data != NULL) Free(os.data);
282
283 ai.length=0;
284 M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1);
285 if (ai.data != NULL)
286 {
287 ret->time=ASN1_INTEGER_get(aip);
288 Free(ai.data); ai.data=NULL; ai.length=0;
289 }
290 else
291 ret->time=time(NULL);
292
293 ai.length=0;
294 M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
295 if (ai.data != NULL)
296 {
297 ret->timeout=ASN1_INTEGER_get(aip);
298 Free(ai.data); ai.data=NULL; ai.length=0;
299 }
300 else
301 ret->timeout=3;
302
303 if (ret->peer != NULL)
304 {
305 X509_free(ret->peer);
306 ret->peer=NULL;
307 }
308 M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3);
309
310 os.length=0;
311 os.data=NULL;
312 M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,4);
313
314 if(os.data != NULL)
315 {
316 if (os.length > SSL_MAX_SID_CTX_LENGTH)
317 SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_BAD_LENGTH);
318 ret->sid_ctx_length=os.length;
319 memcpy(ret->sid_ctx,os.data,os.length);
320 Free(os.data); os.data=NULL; os.length=0;
321 }
322 else
323 ret->sid_ctx_length=0;
324
325 M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
326 }
327
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