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
)
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
);