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.]
58 /* ====================================================================
59 * Copyright 2005 Nokia. All rights reserved.
61 * The portions of the attached software ("Contribution") is developed by
62 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
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.
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.
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.
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
88 #include <openssl/asn1t.h>
89 #include <openssl/x509.h>
94 ASN1_OCTET_STRING *cipher;
95 ASN1_OCTET_STRING *comp_id;
96 ASN1_OCTET_STRING *master_key;
97 ASN1_OCTET_STRING *session_id;
98 ASN1_OCTET_STRING *key_arg;
102 ASN1_OCTET_STRING *session_id_context;
104 #ifndef OPENSSL_NO_TLSEXT
105 ASN1_OCTET_STRING *tlsext_hostname;
106 long tlsext_tick_lifetime_hint;
107 ASN1_OCTET_STRING *tlsext_tick;
109 #ifndef OPENSSL_NO_PSK
110 ASN1_OCTET_STRING *psk_identity_hint;
111 ASN1_OCTET_STRING *psk_identity;
113 #ifndef OPENSSL_NO_SRP
114 ASN1_OCTET_STRING *srp_username;
119 ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
120 ASN1_SIMPLE(SSL_SESSION_ASN1, version, LONG),
121 ASN1_SIMPLE(SSL_SESSION_ASN1, ssl_version, LONG),
122 ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
123 ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
124 ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
125 ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
126 ASN1_EXP_OPT(SSL_SESSION_ASN1, time, ZLONG, 1),
127 ASN1_EXP_OPT(SSL_SESSION_ASN1, timeout, ZLONG, 2),
128 ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
129 ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
130 ASN1_EXP_OPT(SSL_SESSION_ASN1, verify_result, ZLONG, 5),
131 #ifndef OPENSSL_NO_TLSEXT
132 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
134 #ifndef OPENSSL_NO_PSK
135 ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
136 ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
138 #ifndef OPENSSL_NO_TLSEXT
139 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZLONG, 9),
140 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
142 ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
143 #ifndef OPENSSL_NO_SRP
144 ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
146 ASN1_EXP_OPT(SSL_SESSION_ASN1, flags, ZLONG, 13)
147 } ASN1_SEQUENCE_END(SSL_SESSION_ASN1)
149 IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)
151 /* Utility functions for i2d_SSL_SESSION */
153 /* Initialise OCTET STRING from buffer and length */
155 static void ssl_session_oinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
156 unsigned char *data, size_t len)
164 /* Initialise OCTET STRING from string */
165 static void ssl_session_sinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
169 ssl_session_oinit(dest, os, (unsigned char *)data, strlen(data));
174 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
179 ASN1_OCTET_STRING cipher;
180 unsigned char cipher_data[2];
181 ASN1_OCTET_STRING master_key, session_id, sid_ctx;
183 #ifndef OPENSSL_NO_COMP
184 ASN1_OCTET_STRING comp_id;
185 unsigned char comp_id_data;
188 #ifndef OPENSSL_NO_TLSEXT
189 ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
192 #ifndef OPENSSL_NO_SRP
193 ASN1_OCTET_STRING srp_username;
196 #ifndef OPENSSL_NO_PSK
197 ASN1_OCTET_STRING psk_identity, psk_identity_hint;
202 if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
205 memset(&as, 0, sizeof(as));
207 as.version = SSL_SESSION_ASN1_VERSION;
208 as.ssl_version = in->ssl_version;
210 if (in->cipher == NULL)
214 cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
215 cipher_data[1] = ((unsigned char)(l)) & 0xff;
217 ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);
219 #ifndef OPENSSL_NO_COMP
220 if (in->compress_meth) {
221 comp_id_data = (unsigned char)in->compress_meth;
222 ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
226 ssl_session_oinit(&as.master_key, &master_key,
227 in->master_key, in->master_key_length);
229 ssl_session_oinit(&as.session_id, &session_id,
230 in->session_id, in->session_id_length);
232 ssl_session_oinit(&as.session_id_context, &sid_ctx,
233 in->sid_ctx, in->sid_ctx_length);
236 as.timeout = in->timeout;
237 as.verify_result = in->verify_result;
241 #ifndef OPENSSL_NO_TLSEXT
242 ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
243 in->tlsext_hostname);
244 if (in->tlsext_tick) {
245 ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
246 in->tlsext_tick, in->tlsext_ticklen);
248 if (in->tlsext_tick_lifetime_hint > 0)
249 as.tlsext_tick_lifetime_hint = in->tlsext_tick_lifetime_hint;
250 #endif /* OPENSSL_NO_TLSEXT */
251 #ifndef OPENSSL_NO_PSK
252 ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
253 in->psk_identity_hint);
254 ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
255 #endif /* OPENSSL_NO_PSK */
256 #ifndef OPENSSL_NO_SRP
257 ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
258 #endif /* OPENSSL_NO_SRP */
260 as.flags = in->flags;
262 return i2d_SSL_SESSION_ASN1(&as, pp);
266 /* Utility functions for d2i_SSL_SESSION */
268 /* BUF_strndup an OCTET STRING */
270 static int ssl_session_strndup(char **pdst, ASN1_OCTET_STRING *src)
276 *pdst = BUF_strndup((char *)src->data, src->length);
282 /* Copy an OCTET STRING, return error if it exceeds maximum length */
284 static int ssl_session_memcpy(unsigned char *dst, unsigned int *pdstlen,
285 ASN1_OCTET_STRING *src, int maxlen)
291 if (src->length > maxlen)
293 memcpy(dst, src->data, src->length);
294 *pdstlen = src->length;
298 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
303 const unsigned char *p = *pp;
304 SSL_SESSION_ASN1 *as = NULL;
305 SSL_SESSION *ret = NULL;
307 as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
308 /* ASN.1 code returns suitable error */
313 ret = SSL_SESSION_new();
320 if (as->version != SSL_SESSION_ASN1_VERSION) {
321 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION);
325 if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
326 && (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
327 && as->ssl_version != DTLS1_BAD_VER) {
328 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION);
332 ret->ssl_version = (int)as->ssl_version;
334 if (as->cipher->length != 2) {
335 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH);
339 p = as->cipher->data;
340 id = 0x03000000L | ((unsigned long)p[0] << 8L) | (unsigned long)p[1];
345 if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
346 as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
349 if (!ssl_session_memcpy(ret->master_key, &tmpl,
350 as->master_key, SSL_MAX_MASTER_KEY_LENGTH))
353 ret->master_key_length = tmpl;
356 ret->time = as->time;
358 ret->time = (unsigned long)time(NULL);
360 if (as->timeout != 0)
361 ret->timeout = as->timeout;
365 X509_free(ret->peer);
366 ret->peer = as->peer;
369 if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
370 as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
373 /* NB: this defaults to zero which is X509_V_OK */
374 ret->verify_result = as->verify_result;
376 #ifndef OPENSSL_NO_TLSEXT
377 if (!ssl_session_strndup(&ret->tlsext_hostname, as->tlsext_hostname))
379 #endif /* OPENSSL_NO_TLSEXT */
381 #ifndef OPENSSL_NO_PSK
382 if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
384 if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
388 #ifndef OPENSSL_NO_TLSEXT
389 ret->tlsext_tick_lifetime_hint = as->tlsext_tick_lifetime_hint;
390 if (as->tlsext_tick) {
391 ret->tlsext_tick = as->tlsext_tick->data;
392 ret->tlsext_ticklen = as->tlsext_tick->length;
393 as->tlsext_tick->data = NULL;
395 ret->tlsext_tick = NULL;
397 #endif /* OPENSSL_NO_TLSEXT */
398 #ifndef OPENSSL_NO_COMP
400 if (as->comp_id->length != 1) {
401 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH);
404 ret->compress_meth = as->comp_id->data[0];
406 ret->compress_meth = 0;
410 #ifndef OPENSSL_NO_SRP
411 if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
413 #endif /* OPENSSL_NO_SRP */
414 /* Flags defaults to zero which is fine */
415 ret->flags = as->flags;
417 M_ASN1_free_of(as, SSL_SESSION_ASN1);
419 if ((a != NULL) && (*a == NULL))
425 M_ASN1_free_of(as, SSL_SESSION_ASN1);
426 if ((a == NULL) || (*a != ret))
427 SSL_SESSION_free(ret);