1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright 2005 Nokia. All rights reserved.
60 * The portions of the attached software ("Contribution") is developed by
61 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
64 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
65 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
66 * support (see RFC 4279) to OpenSSL.
68 * No patent licenses or other rights except those expressly stated in
69 * the OpenSSL open source license shall be deemed granted or received
70 * expressly, by implication, estoppel, or otherwise.
72 * No assurances are provided by Nokia that the Contribution does not
73 * infringe the patent or other intellectual property rights of any third
74 * party or that the license provides you with all the necessary rights
75 * to make use of the Contribution.
77 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
78 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
79 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
80 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
87 #include <openssl/asn1t.h>
88 #include <openssl/x509.h>
93 ASN1_OCTET_STRING *cipher;
94 ASN1_OCTET_STRING *comp_id;
95 ASN1_OCTET_STRING *master_key;
96 ASN1_OCTET_STRING *session_id;
97 ASN1_OCTET_STRING *key_arg;
101 ASN1_OCTET_STRING *session_id_context;
103 ASN1_OCTET_STRING *tlsext_hostname;
104 long tlsext_tick_lifetime_hint;
105 ASN1_OCTET_STRING *tlsext_tick;
106 #ifndef OPENSSL_NO_PSK
107 ASN1_OCTET_STRING *psk_identity_hint;
108 ASN1_OCTET_STRING *psk_identity;
110 #ifndef OPENSSL_NO_SRP
111 ASN1_OCTET_STRING *srp_username;
116 ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
117 ASN1_SIMPLE(SSL_SESSION_ASN1, version, LONG),
118 ASN1_SIMPLE(SSL_SESSION_ASN1, ssl_version, LONG),
119 ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
120 ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
121 ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
122 ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
123 ASN1_EXP_OPT(SSL_SESSION_ASN1, time, ZLONG, 1),
124 ASN1_EXP_OPT(SSL_SESSION_ASN1, timeout, ZLONG, 2),
125 ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
126 ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
127 ASN1_EXP_OPT(SSL_SESSION_ASN1, verify_result, ZLONG, 5),
128 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
129 #ifndef OPENSSL_NO_PSK
130 ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
131 ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
133 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZLONG, 9),
134 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
135 ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
136 #ifndef OPENSSL_NO_SRP
137 ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
139 ASN1_EXP_OPT(SSL_SESSION_ASN1, flags, ZLONG, 13)
140 } static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1)
142 IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)
144 /* Utility functions for i2d_SSL_SESSION */
146 /* Initialise OCTET STRING from buffer and length */
148 static void ssl_session_oinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
149 unsigned char *data, size_t len)
157 /* Initialise OCTET STRING from string */
158 static void ssl_session_sinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
162 ssl_session_oinit(dest, os, (unsigned char *)data, strlen(data));
167 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
172 ASN1_OCTET_STRING cipher;
173 unsigned char cipher_data[2];
174 ASN1_OCTET_STRING master_key, session_id, sid_ctx;
176 #ifndef OPENSSL_NO_COMP
177 ASN1_OCTET_STRING comp_id;
178 unsigned char comp_id_data;
181 ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
183 #ifndef OPENSSL_NO_SRP
184 ASN1_OCTET_STRING srp_username;
187 #ifndef OPENSSL_NO_PSK
188 ASN1_OCTET_STRING psk_identity, psk_identity_hint;
193 if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
196 memset(&as, 0, sizeof(as));
198 as.version = SSL_SESSION_ASN1_VERSION;
199 as.ssl_version = in->ssl_version;
201 if (in->cipher == NULL)
205 cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
206 cipher_data[1] = ((unsigned char)(l)) & 0xff;
208 ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);
210 #ifndef OPENSSL_NO_COMP
211 if (in->compress_meth) {
212 comp_id_data = (unsigned char)in->compress_meth;
213 ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
217 ssl_session_oinit(&as.master_key, &master_key,
218 in->master_key, in->master_key_length);
220 ssl_session_oinit(&as.session_id, &session_id,
221 in->session_id, in->session_id_length);
223 ssl_session_oinit(&as.session_id_context, &sid_ctx,
224 in->sid_ctx, in->sid_ctx_length);
227 as.timeout = in->timeout;
228 as.verify_result = in->verify_result;
232 ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
233 in->tlsext_hostname);
234 if (in->tlsext_tick) {
235 ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
236 in->tlsext_tick, in->tlsext_ticklen);
238 if (in->tlsext_tick_lifetime_hint > 0)
239 as.tlsext_tick_lifetime_hint = in->tlsext_tick_lifetime_hint;
240 #ifndef OPENSSL_NO_PSK
241 ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
242 in->psk_identity_hint);
243 ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
244 #endif /* OPENSSL_NO_PSK */
245 #ifndef OPENSSL_NO_SRP
246 ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
247 #endif /* OPENSSL_NO_SRP */
249 as.flags = in->flags;
251 return i2d_SSL_SESSION_ASN1(&as, pp);
255 /* Utility functions for d2i_SSL_SESSION */
257 /* OPENSSL_strndup an OCTET STRING */
259 static int ssl_session_strndup(char **pdst, ASN1_OCTET_STRING *src)
265 *pdst = OPENSSL_strndup((char *)src->data, src->length);
271 /* Copy an OCTET STRING, return error if it exceeds maximum length */
273 static int ssl_session_memcpy(unsigned char *dst, unsigned int *pdstlen,
274 ASN1_OCTET_STRING *src, int maxlen)
280 if (src->length > maxlen)
282 memcpy(dst, src->data, src->length);
283 *pdstlen = src->length;
287 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
292 const unsigned char *p = *pp;
293 SSL_SESSION_ASN1 *as = NULL;
294 SSL_SESSION *ret = NULL;
296 as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
297 /* ASN.1 code returns suitable error */
302 ret = SSL_SESSION_new();
309 if (as->version != SSL_SESSION_ASN1_VERSION) {
310 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION);
314 if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
315 && (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
316 && as->ssl_version != DTLS1_BAD_VER) {
317 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION);
321 ret->ssl_version = (int)as->ssl_version;
323 if (as->cipher->length != 2) {
324 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH);
328 p = as->cipher->data;
329 id = 0x03000000L | ((unsigned long)p[0] << 8L) | (unsigned long)p[1];
334 if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
335 as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
338 if (!ssl_session_memcpy(ret->master_key, &tmpl,
339 as->master_key, SSL_MAX_MASTER_KEY_LENGTH))
342 ret->master_key_length = tmpl;
345 ret->time = as->time;
347 ret->time = (unsigned long)time(NULL);
349 if (as->timeout != 0)
350 ret->timeout = as->timeout;
354 X509_free(ret->peer);
355 ret->peer = as->peer;
358 if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
359 as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
362 /* NB: this defaults to zero which is X509_V_OK */
363 ret->verify_result = as->verify_result;
365 if (!ssl_session_strndup(&ret->tlsext_hostname, as->tlsext_hostname))
368 #ifndef OPENSSL_NO_PSK
369 if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
371 if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
375 ret->tlsext_tick_lifetime_hint = as->tlsext_tick_lifetime_hint;
376 if (as->tlsext_tick) {
377 ret->tlsext_tick = as->tlsext_tick->data;
378 ret->tlsext_ticklen = as->tlsext_tick->length;
379 as->tlsext_tick->data = NULL;
381 ret->tlsext_tick = NULL;
383 #ifndef OPENSSL_NO_COMP
385 if (as->comp_id->length != 1) {
386 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH);
389 ret->compress_meth = as->comp_id->data[0];
391 ret->compress_meth = 0;
395 #ifndef OPENSSL_NO_SRP
396 if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
398 #endif /* OPENSSL_NO_SRP */
399 /* Flags defaults to zero which is fine */
400 ret->flags = as->flags;
402 M_ASN1_free_of(as, SSL_SESSION_ASN1);
404 if ((a != NULL) && (*a == NULL))
410 M_ASN1_free_of(as, SSL_SESSION_ASN1);
411 if ((a == NULL) || (*a != ret))
412 SSL_SESSION_free(ret);