2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* ====================================================================
11 * Copyright 2005 Nokia. All rights reserved.
13 * The portions of the attached software ("Contribution") is developed by
14 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
17 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
18 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
19 * support (see RFC 4279) to OpenSSL.
21 * No patent licenses or other rights except those expressly stated in
22 * the OpenSSL open source license shall be deemed granted or received
23 * expressly, by implication, estoppel, or otherwise.
25 * No assurances are provided by Nokia that the Contribution does not
26 * infringe the patent or other intellectual property rights of any third
27 * party or that the license provides you with all the necessary rights
28 * to make use of the Contribution.
30 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
31 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
32 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
33 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
40 #include <openssl/asn1t.h>
41 #include <openssl/x509.h>
46 ASN1_OCTET_STRING *cipher;
47 ASN1_OCTET_STRING *comp_id;
48 ASN1_OCTET_STRING *master_key;
49 ASN1_OCTET_STRING *session_id;
50 ASN1_OCTET_STRING *key_arg;
54 ASN1_OCTET_STRING *session_id_context;
56 ASN1_OCTET_STRING *tlsext_hostname;
57 long tlsext_tick_lifetime_hint;
58 ASN1_OCTET_STRING *tlsext_tick;
59 #ifndef OPENSSL_NO_PSK
60 ASN1_OCTET_STRING *psk_identity_hint;
61 ASN1_OCTET_STRING *psk_identity;
63 #ifndef OPENSSL_NO_SRP
64 ASN1_OCTET_STRING *srp_username;
69 ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
70 ASN1_SIMPLE(SSL_SESSION_ASN1, version, LONG),
71 ASN1_SIMPLE(SSL_SESSION_ASN1, ssl_version, LONG),
72 ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
73 ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
74 ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
75 ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
76 ASN1_EXP_OPT(SSL_SESSION_ASN1, time, ZLONG, 1),
77 ASN1_EXP_OPT(SSL_SESSION_ASN1, timeout, ZLONG, 2),
78 ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
79 ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
80 ASN1_EXP_OPT(SSL_SESSION_ASN1, verify_result, ZLONG, 5),
81 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
82 #ifndef OPENSSL_NO_PSK
83 ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
84 ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
86 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZLONG, 9),
87 ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
88 ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
89 #ifndef OPENSSL_NO_SRP
90 ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
92 ASN1_EXP_OPT(SSL_SESSION_ASN1, flags, ZLONG, 13)
93 } static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1)
95 IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)
97 /* Utility functions for i2d_SSL_SESSION */
99 /* Initialise OCTET STRING from buffer and length */
101 static void ssl_session_oinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
102 unsigned char *data, size_t len)
105 os->length = (int)len;
110 /* Initialise OCTET STRING from string */
111 static void ssl_session_sinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
115 ssl_session_oinit(dest, os, (unsigned char *)data, strlen(data));
120 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
125 ASN1_OCTET_STRING cipher;
126 unsigned char cipher_data[2];
127 ASN1_OCTET_STRING master_key, session_id, sid_ctx;
129 #ifndef OPENSSL_NO_COMP
130 ASN1_OCTET_STRING comp_id;
131 unsigned char comp_id_data;
134 ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
136 #ifndef OPENSSL_NO_SRP
137 ASN1_OCTET_STRING srp_username;
140 #ifndef OPENSSL_NO_PSK
141 ASN1_OCTET_STRING psk_identity, psk_identity_hint;
146 if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
149 memset(&as, 0, sizeof(as));
151 as.version = SSL_SESSION_ASN1_VERSION;
152 as.ssl_version = in->ssl_version;
154 if (in->cipher == NULL)
158 cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
159 cipher_data[1] = ((unsigned char)(l)) & 0xff;
161 ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);
163 #ifndef OPENSSL_NO_COMP
164 if (in->compress_meth) {
165 comp_id_data = (unsigned char)in->compress_meth;
166 ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
170 ssl_session_oinit(&as.master_key, &master_key,
171 in->master_key, in->master_key_length);
173 ssl_session_oinit(&as.session_id, &session_id,
174 in->session_id, in->session_id_length);
176 ssl_session_oinit(&as.session_id_context, &sid_ctx,
177 in->sid_ctx, in->sid_ctx_length);
180 as.timeout = in->timeout;
181 as.verify_result = in->verify_result;
185 ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
186 in->tlsext_hostname);
187 if (in->tlsext_tick) {
188 ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
189 in->tlsext_tick, in->tlsext_ticklen);
191 if (in->tlsext_tick_lifetime_hint > 0)
192 as.tlsext_tick_lifetime_hint = in->tlsext_tick_lifetime_hint;
193 #ifndef OPENSSL_NO_PSK
194 ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
195 in->psk_identity_hint);
196 ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
197 #endif /* OPENSSL_NO_PSK */
198 #ifndef OPENSSL_NO_SRP
199 ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
200 #endif /* OPENSSL_NO_SRP */
202 as.flags = in->flags;
204 return i2d_SSL_SESSION_ASN1(&as, pp);
208 /* Utility functions for d2i_SSL_SESSION */
210 /* OPENSSL_strndup an OCTET STRING */
212 static int ssl_session_strndup(char **pdst, ASN1_OCTET_STRING *src)
218 *pdst = OPENSSL_strndup((char *)src->data, src->length);
224 /* Copy an OCTET STRING, return error if it exceeds maximum length */
226 static int ssl_session_memcpy(unsigned char *dst, size_t *pdstlen,
227 ASN1_OCTET_STRING *src, size_t maxlen)
233 if (src->length < 0 || src->length > (int)maxlen)
235 memcpy(dst, src->data, src->length);
236 *pdstlen = src->length;
240 SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
245 const unsigned char *p = *pp;
246 SSL_SESSION_ASN1 *as = NULL;
247 SSL_SESSION *ret = NULL;
249 as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
250 /* ASN.1 code returns suitable error */
255 ret = SSL_SESSION_new();
262 if (as->version != SSL_SESSION_ASN1_VERSION) {
263 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION);
267 if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
268 && (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
269 && as->ssl_version != DTLS1_BAD_VER) {
270 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION);
274 ret->ssl_version = (int)as->ssl_version;
276 if (as->cipher->length != 2) {
277 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH);
281 p = as->cipher->data;
282 id = 0x03000000L | ((unsigned long)p[0] << 8L) | (unsigned long)p[1];
287 if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
288 as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
291 if (!ssl_session_memcpy(ret->master_key, &tmpl,
292 as->master_key, SSL_MAX_MASTER_KEY_LENGTH))
295 ret->master_key_length = tmpl;
298 ret->time = as->time;
300 ret->time = (unsigned long)time(NULL);
302 if (as->timeout != 0)
303 ret->timeout = as->timeout;
307 X509_free(ret->peer);
308 ret->peer = as->peer;
311 if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
312 as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
315 /* NB: this defaults to zero which is X509_V_OK */
316 ret->verify_result = as->verify_result;
318 if (!ssl_session_strndup(&ret->tlsext_hostname, as->tlsext_hostname))
321 #ifndef OPENSSL_NO_PSK
322 if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
324 if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
328 ret->tlsext_tick_lifetime_hint = as->tlsext_tick_lifetime_hint;
329 if (as->tlsext_tick) {
330 ret->tlsext_tick = as->tlsext_tick->data;
331 ret->tlsext_ticklen = as->tlsext_tick->length;
332 as->tlsext_tick->data = NULL;
334 ret->tlsext_tick = NULL;
336 #ifndef OPENSSL_NO_COMP
338 if (as->comp_id->length != 1) {
339 SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH);
342 ret->compress_meth = as->comp_id->data[0];
344 ret->compress_meth = 0;
348 #ifndef OPENSSL_NO_SRP
349 if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
351 #endif /* OPENSSL_NO_SRP */
352 /* Flags defaults to zero which is fine */
353 ret->flags = as->flags;
355 M_ASN1_free_of(as, SSL_SESSION_ASN1);
357 if ((a != NULL) && (*a == NULL))
363 M_ASN1_free_of(as, SSL_SESSION_ASN1);
364 if ((a == NULL) || (*a != ret))
365 SSL_SESSION_free(ret);