2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
62 #include <openssl/asn1_mac.h>
63 #include <openssl/objects.h>
64 #include <openssl/x509.h>
66 typedef struct ssl_session_asn1_st
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 */
80 ASN1_INTEGER verify_result;
81 #ifndef OPENSSL_NO_TLSEXT
82 ASN1_OCTET_STRING tlsext_hostname;
83 #endif /* OPENSSL_NO_TLSEXT */
86 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
88 #define LSIZE2 (sizeof(long)*2)
89 int v1=0,v2=0,v3=0,v4=0,v5=0,v6=0;
90 unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
91 unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
96 if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
99 /* Note that I cheat in the following 2 assignments. I know
100 * that if the ASN1_INTEGER passed to ASN1_INTEGER_set
101 * is > sizeof(long)+1, the buffer will not be re-OPENSSL_malloc()ed.
102 * This is a bit evil but makes things simple, no dynamic allocation
104 a.version.length=LSIZE2;
105 a.version.type=V_ASN1_INTEGER;
106 a.version.data=ibuf1;
107 ASN1_INTEGER_set(&(a.version),SSL_SESSION_ASN1_VERSION);
109 a.ssl_version.length=LSIZE2;
110 a.ssl_version.type=V_ASN1_INTEGER;
111 a.ssl_version.data=ibuf2;
112 ASN1_INTEGER_set(&(a.ssl_version),in->ssl_version);
114 a.cipher.type=V_ASN1_OCTET_STRING;
117 if (in->cipher == NULL)
121 if (in->ssl_version == SSL2_VERSION)
124 buf[0]=((unsigned char)(l>>16L))&0xff;
125 buf[1]=((unsigned char)(l>> 8L))&0xff;
126 buf[2]=((unsigned char)(l ))&0xff;
131 buf[0]=((unsigned char)(l>>8L))&0xff;
132 buf[1]=((unsigned char)(l ))&0xff;
135 a.master_key.length=in->master_key_length;
136 a.master_key.type=V_ASN1_OCTET_STRING;
137 a.master_key.data=in->master_key;
139 a.session_id.length=in->session_id_length;
140 a.session_id.type=V_ASN1_OCTET_STRING;
141 a.session_id.data=in->session_id;
143 a.session_id_context.length=in->sid_ctx_length;
144 a.session_id_context.type=V_ASN1_OCTET_STRING;
145 a.session_id_context.data=in->sid_ctx;
147 a.key_arg.length=in->key_arg_length;
148 a.key_arg.type=V_ASN1_OCTET_STRING;
149 a.key_arg.data=in->key_arg;
151 #ifndef OPENSSL_NO_KRB5
152 if (in->krb5_client_princ_len)
154 a.krb5_princ.length=in->krb5_client_princ_len;
155 a.krb5_princ.type=V_ASN1_OCTET_STRING;
156 a.krb5_princ.data=in->krb5_client_princ;
158 #endif /* OPENSSL_NO_KRB5 */
162 a.time.length=LSIZE2;
163 a.time.type=V_ASN1_INTEGER;
165 ASN1_INTEGER_set(&(a.time),in->time);
168 if (in->timeout != 0L)
170 a.timeout.length=LSIZE2;
171 a.timeout.type=V_ASN1_INTEGER;
172 a.timeout.data=ibuf4;
173 ASN1_INTEGER_set(&(a.timeout),in->timeout);
176 if (in->verify_result != X509_V_OK)
178 a.verify_result.length=LSIZE2;
179 a.verify_result.type=V_ASN1_INTEGER;
180 a.verify_result.data=ibuf5;
181 ASN1_INTEGER_set(&a.verify_result,in->verify_result);
184 #ifndef OPENSSL_NO_TLSEXT
185 if (in->tlsext_hostname)
187 a.tlsext_hostname.length=strlen(in->tlsext_hostname);
188 a.tlsext_hostname.type=V_ASN1_OCTET_STRING;
189 a.tlsext_hostname.data=(unsigned char *)in->tlsext_hostname;
191 #endif /* OPENSSL_NO_TLSEXT */
193 M_ASN1_I2D_len(&(a.version), i2d_ASN1_INTEGER);
194 M_ASN1_I2D_len(&(a.ssl_version), i2d_ASN1_INTEGER);
195 M_ASN1_I2D_len(&(a.cipher), i2d_ASN1_OCTET_STRING);
196 M_ASN1_I2D_len(&(a.session_id), i2d_ASN1_OCTET_STRING);
197 M_ASN1_I2D_len(&(a.master_key), i2d_ASN1_OCTET_STRING);
198 #ifndef OPENSSL_NO_KRB5
199 if (in->krb5_client_princ_len)
200 M_ASN1_I2D_len(&(a.krb5_princ), i2d_ASN1_OCTET_STRING);
201 #endif /* OPENSSL_NO_KRB5 */
202 if (in->key_arg_length > 0)
203 M_ASN1_I2D_len_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING);
205 M_ASN1_I2D_len_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
206 if (in->timeout != 0L)
207 M_ASN1_I2D_len_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
208 if (in->peer != NULL)
209 M_ASN1_I2D_len_EXP_opt(in->peer,i2d_X509,3,v3);
210 M_ASN1_I2D_len_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,v4);
211 if (in->verify_result != X509_V_OK)
212 M_ASN1_I2D_len_EXP_opt(&(a.verify_result),i2d_ASN1_INTEGER,5,v5);
214 #ifndef OPENSSL_NO_TLSEXT
215 if (in->tlsext_hostname)
216 M_ASN1_I2D_len_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
217 #endif /* OPENSSL_NO_TLSEXT */
218 M_ASN1_I2D_seq_total();
220 M_ASN1_I2D_put(&(a.version), i2d_ASN1_INTEGER);
221 M_ASN1_I2D_put(&(a.ssl_version), i2d_ASN1_INTEGER);
222 M_ASN1_I2D_put(&(a.cipher), i2d_ASN1_OCTET_STRING);
223 M_ASN1_I2D_put(&(a.session_id), i2d_ASN1_OCTET_STRING);
224 M_ASN1_I2D_put(&(a.master_key), i2d_ASN1_OCTET_STRING);
225 #ifndef OPENSSL_NO_KRB5
226 if (in->krb5_client_princ_len)
227 M_ASN1_I2D_put(&(a.krb5_princ), i2d_ASN1_OCTET_STRING);
228 #endif /* OPENSSL_NO_KRB5 */
229 if (in->key_arg_length > 0)
230 M_ASN1_I2D_put_IMP_opt(&(a.key_arg),i2d_ASN1_OCTET_STRING,0);
232 M_ASN1_I2D_put_EXP_opt(&(a.time),i2d_ASN1_INTEGER,1,v1);
233 if (in->timeout != 0L)
234 M_ASN1_I2D_put_EXP_opt(&(a.timeout),i2d_ASN1_INTEGER,2,v2);
235 if (in->peer != NULL)
236 M_ASN1_I2D_put_EXP_opt(in->peer,i2d_X509,3,v3);
237 M_ASN1_I2D_put_EXP_opt(&a.session_id_context,i2d_ASN1_OCTET_STRING,4,
239 if (in->verify_result != X509_V_OK)
240 M_ASN1_I2D_put_EXP_opt(&a.verify_result,i2d_ASN1_INTEGER,5,v5);
241 #ifndef OPENSSL_NO_TLSEXT
242 if (in->tlsext_hostname)
243 M_ASN1_I2D_put_EXP_opt(&(a.tlsext_hostname), i2d_ASN1_OCTET_STRING,6,v6);
244 #endif /* OPENSSL_NO_TLSEXT */
248 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
251 int version,ssl_version=0,i;
253 ASN1_INTEGER ai,*aip;
254 ASN1_OCTET_STRING os,*osp;
255 M_ASN1_D2I_vars(a,SSL_SESSION *,SSL_SESSION_new);
261 M_ASN1_D2I_start_sequence();
263 ai.data=NULL; ai.length=0;
264 M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
265 version=(int)ASN1_INTEGER_get(aip);
266 if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
268 /* we don't care about the version right now :-) */
269 M_ASN1_D2I_get_x(ASN1_INTEGER,aip,d2i_ASN1_INTEGER);
270 ssl_version=(int)ASN1_INTEGER_get(aip);
271 ret->ssl_version=ssl_version;
272 if (ai.data != NULL) { OPENSSL_free(ai.data); ai.data=NULL; ai.length=0; }
274 os.data=NULL; os.length=0;
275 M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
276 if (ssl_version == SSL2_VERSION)
280 c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
284 ((unsigned long)os.data[0]<<16L)|
285 ((unsigned long)os.data[1]<< 8L)|
286 (unsigned long)os.data[2];
288 else if ((ssl_version>>8) == SSL3_VERSION_MAJOR)
292 c.error=SSL_R_CIPHER_CODE_WRONG_LENGTH;
296 ((unsigned long)os.data[0]<<8L)|
297 (unsigned long)os.data[1];
301 SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_UNKNOWN_SSL_VERSION);
308 M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
309 if ((ssl_version>>8) == SSL3_VERSION_MAJOR)
310 i=SSL3_MAX_SSL_SESSION_ID_LENGTH;
311 else /* if (ssl_version>>8 == SSL2_VERSION_MAJOR) */
312 i=SSL2_MAX_SSL_SESSION_ID_LENGTH;
316 if (os.length > (int)sizeof(ret->session_id)) /* can't happen */
317 os.length = sizeof(ret->session_id);
319 ret->session_id_length=os.length;
320 OPENSSL_assert(os.length <= (int)sizeof(ret->session_id));
321 memcpy(ret->session_id,os.data,os.length);
323 M_ASN1_D2I_get_x(ASN1_OCTET_STRING,osp,d2i_ASN1_OCTET_STRING);
324 if (ret->master_key_length > SSL_MAX_MASTER_KEY_LENGTH)
325 ret->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
327 ret->master_key_length=os.length;
328 memcpy(ret->master_key,os.data,ret->master_key_length);
332 #ifndef OPENSSL_NO_KRB5
334 M_ASN1_D2I_get_opt(osp,d2i_ASN1_OCTET_STRING,V_ASN1_OCTET_STRING);
337 if (os.length > SSL_MAX_KRB5_PRINCIPAL_LENGTH)
338 ret->krb5_client_princ_len=0;
340 ret->krb5_client_princ_len=os.length;
341 memcpy(ret->krb5_client_princ,os.data,ret->krb5_client_princ_len);
342 OPENSSL_free(os.data);
347 ret->krb5_client_princ_len=0;
348 #endif /* OPENSSL_NO_KRB5 */
350 M_ASN1_D2I_get_IMP_opt(osp,d2i_ASN1_OCTET_STRING,0,V_ASN1_OCTET_STRING);
351 if (os.length > SSL_MAX_KEY_ARG_LENGTH)
352 ret->key_arg_length=SSL_MAX_KEY_ARG_LENGTH;
354 ret->key_arg_length=os.length;
355 memcpy(ret->key_arg,os.data,ret->key_arg_length);
356 if (os.data != NULL) OPENSSL_free(os.data);
359 M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,1);
362 ret->time=ASN1_INTEGER_get(aip);
363 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
366 ret->time=(unsigned long)time(NULL);
369 M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,2);
372 ret->timeout=ASN1_INTEGER_get(aip);
373 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
378 if (ret->peer != NULL)
380 X509_free(ret->peer);
383 M_ASN1_D2I_get_EXP_opt(ret->peer,d2i_X509,3);
387 M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,4);
391 if (os.length > SSL_MAX_SID_CTX_LENGTH)
393 ret->sid_ctx_length=os.length;
394 SSLerr(SSL_F_D2I_SSL_SESSION,SSL_R_BAD_LENGTH);
398 ret->sid_ctx_length=os.length;
399 memcpy(ret->sid_ctx,os.data,os.length);
401 OPENSSL_free(os.data); os.data=NULL; os.length=0;
404 ret->sid_ctx_length=0;
407 M_ASN1_D2I_get_EXP_opt(aip,d2i_ASN1_INTEGER,5);
410 ret->verify_result=ASN1_INTEGER_get(aip);
411 OPENSSL_free(ai.data); ai.data=NULL; ai.length=0;
414 ret->verify_result=X509_V_OK;
416 #ifndef OPENSSL_NO_TLSEXT
419 M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,6);
422 ret->tlsext_hostname = BUF_strndup((char *)os.data, os.length);
423 OPENSSL_free(os.data);
428 ret->tlsext_hostname=NULL;
430 #endif /* OPENSSL_NO_TLSEXT */
432 M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);