2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2005 Nokia. All rights reserved.
5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
14 #include <openssl/asn1t.h>
15 #include <openssl/x509.h>
20 ASN1_OCTET_STRING
*cipher
;
21 ASN1_OCTET_STRING
*comp_id
;
22 ASN1_OCTET_STRING
*master_key
;
23 ASN1_OCTET_STRING
*session_id
;
24 ASN1_OCTET_STRING
*key_arg
;
28 ASN1_OCTET_STRING
*session_id_context
;
29 int32_t verify_result
;
30 ASN1_OCTET_STRING
*tlsext_hostname
;
31 uint64_t tlsext_tick_lifetime_hint
;
32 uint32_t tlsext_tick_age_add
;
33 ASN1_OCTET_STRING
*tlsext_tick
;
34 #ifndef OPENSSL_NO_PSK
35 ASN1_OCTET_STRING
*psk_identity_hint
;
36 ASN1_OCTET_STRING
*psk_identity
;
38 #ifndef OPENSSL_NO_SRP
39 ASN1_OCTET_STRING
*srp_username
;
42 uint32_t max_early_data
;
43 ASN1_OCTET_STRING
*alpn_selected
;
44 ASN1_OCTET_STRING
*tick_nonce
;
45 uint32_t tlsext_max_fragment_len_mode
;
46 ASN1_OCTET_STRING
*ticket_appdata
;
49 ASN1_SEQUENCE(SSL_SESSION_ASN1
) = {
50 ASN1_EMBED(SSL_SESSION_ASN1
, version
, UINT32
),
51 ASN1_EMBED(SSL_SESSION_ASN1
, ssl_version
, INT32
),
52 ASN1_SIMPLE(SSL_SESSION_ASN1
, cipher
, ASN1_OCTET_STRING
),
53 ASN1_SIMPLE(SSL_SESSION_ASN1
, session_id
, ASN1_OCTET_STRING
),
54 ASN1_SIMPLE(SSL_SESSION_ASN1
, master_key
, ASN1_OCTET_STRING
),
55 ASN1_IMP_OPT(SSL_SESSION_ASN1
, key_arg
, ASN1_OCTET_STRING
, 0),
56 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, time
, ZINT64
, 1),
57 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, timeout
, ZINT64
, 2),
58 ASN1_EXP_OPT(SSL_SESSION_ASN1
, peer
, X509
, 3),
59 ASN1_EXP_OPT(SSL_SESSION_ASN1
, session_id_context
, ASN1_OCTET_STRING
, 4),
60 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, verify_result
, ZINT32
, 5),
61 ASN1_EXP_OPT(SSL_SESSION_ASN1
, tlsext_hostname
, ASN1_OCTET_STRING
, 6),
62 #ifndef OPENSSL_NO_PSK
63 ASN1_EXP_OPT(SSL_SESSION_ASN1
, psk_identity_hint
, ASN1_OCTET_STRING
, 7),
64 ASN1_EXP_OPT(SSL_SESSION_ASN1
, psk_identity
, ASN1_OCTET_STRING
, 8),
66 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, tlsext_tick_lifetime_hint
, ZUINT64
, 9),
67 ASN1_EXP_OPT(SSL_SESSION_ASN1
, tlsext_tick
, ASN1_OCTET_STRING
, 10),
68 ASN1_EXP_OPT(SSL_SESSION_ASN1
, comp_id
, ASN1_OCTET_STRING
, 11),
69 #ifndef OPENSSL_NO_SRP
70 ASN1_EXP_OPT(SSL_SESSION_ASN1
, srp_username
, ASN1_OCTET_STRING
, 12),
72 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, flags
, ZUINT64
, 13),
73 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, tlsext_tick_age_add
, ZUINT32
, 14),
74 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, max_early_data
, ZUINT32
, 15),
75 ASN1_EXP_OPT(SSL_SESSION_ASN1
, alpn_selected
, ASN1_OCTET_STRING
, 16),
76 ASN1_EXP_OPT(SSL_SESSION_ASN1
, tick_nonce
, ASN1_OCTET_STRING
, 17),
77 ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1
, tlsext_max_fragment_len_mode
, ZUINT32
, 18),
78 ASN1_EXP_OPT(SSL_SESSION_ASN1
, ticket_appdata
, ASN1_OCTET_STRING
, 19)
79 } static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1
)
81 IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1
)
83 /* Utility functions for i2d_SSL_SESSION */
85 /* Initialise OCTET STRING from buffer and length */
87 static void ssl_session_oinit(ASN1_OCTET_STRING
**dest
, ASN1_OCTET_STRING
*os
,
88 unsigned char *data
, size_t len
)
91 os
->length
= (int)len
;
96 /* Initialise OCTET STRING from string */
97 static void ssl_session_sinit(ASN1_OCTET_STRING
**dest
, ASN1_OCTET_STRING
*os
,
101 ssl_session_oinit(dest
, os
, (unsigned char *)data
, strlen(data
));
106 int i2d_SSL_SESSION(SSL_SESSION
*in
, unsigned char **pp
)
111 ASN1_OCTET_STRING cipher
;
112 unsigned char cipher_data
[2];
113 ASN1_OCTET_STRING master_key
, session_id
, sid_ctx
;
115 #ifndef OPENSSL_NO_COMP
116 ASN1_OCTET_STRING comp_id
;
117 unsigned char comp_id_data
;
119 ASN1_OCTET_STRING tlsext_hostname
, tlsext_tick
;
120 #ifndef OPENSSL_NO_SRP
121 ASN1_OCTET_STRING srp_username
;
123 #ifndef OPENSSL_NO_PSK
124 ASN1_OCTET_STRING psk_identity
, psk_identity_hint
;
126 ASN1_OCTET_STRING alpn_selected
;
127 ASN1_OCTET_STRING tick_nonce
;
128 ASN1_OCTET_STRING ticket_appdata
;
132 if ((in
== NULL
) || ((in
->cipher
== NULL
) && (in
->cipher_id
== 0)))
135 memset(&as
, 0, sizeof(as
));
137 as
.version
= SSL_SESSION_ASN1_VERSION
;
138 as
.ssl_version
= in
->ssl_version
;
140 if (in
->cipher
== NULL
)
144 cipher_data
[0] = ((unsigned char)(l
>> 8L)) & 0xff;
145 cipher_data
[1] = ((unsigned char)(l
)) & 0xff;
147 ssl_session_oinit(&as
.cipher
, &cipher
, cipher_data
, 2);
149 #ifndef OPENSSL_NO_COMP
150 if (in
->compress_meth
) {
151 comp_id_data
= (unsigned char)in
->compress_meth
;
152 ssl_session_oinit(&as
.comp_id
, &comp_id
, &comp_id_data
, 1);
156 ssl_session_oinit(&as
.master_key
, &master_key
,
157 in
->master_key
, in
->master_key_length
);
159 ssl_session_oinit(&as
.session_id
, &session_id
,
160 in
->session_id
, in
->session_id_length
);
162 ssl_session_oinit(&as
.session_id_context
, &sid_ctx
,
163 in
->sid_ctx
, in
->sid_ctx_length
);
166 as
.timeout
= in
->timeout
;
167 as
.verify_result
= in
->verify_result
;
171 ssl_session_sinit(&as
.tlsext_hostname
, &tlsext_hostname
,
174 ssl_session_oinit(&as
.tlsext_tick
, &tlsext_tick
,
175 in
->ext
.tick
, in
->ext
.ticklen
);
177 if (in
->ext
.tick_lifetime_hint
> 0)
178 as
.tlsext_tick_lifetime_hint
= in
->ext
.tick_lifetime_hint
;
179 as
.tlsext_tick_age_add
= in
->ext
.tick_age_add
;
180 #ifndef OPENSSL_NO_PSK
181 ssl_session_sinit(&as
.psk_identity_hint
, &psk_identity_hint
,
182 in
->psk_identity_hint
);
183 ssl_session_sinit(&as
.psk_identity
, &psk_identity
, in
->psk_identity
);
184 #endif /* OPENSSL_NO_PSK */
185 #ifndef OPENSSL_NO_SRP
186 ssl_session_sinit(&as
.srp_username
, &srp_username
, in
->srp_username
);
187 #endif /* OPENSSL_NO_SRP */
189 as
.flags
= in
->flags
;
190 as
.max_early_data
= in
->ext
.max_early_data
;
192 if (in
->ext
.alpn_selected
== NULL
)
193 as
.alpn_selected
= NULL
;
195 ssl_session_oinit(&as
.alpn_selected
, &alpn_selected
,
196 in
->ext
.alpn_selected
, in
->ext
.alpn_selected_len
);
198 if (in
->ext
.tick_nonce
== NULL
)
199 as
.tick_nonce
= NULL
;
201 ssl_session_oinit(&as
.tick_nonce
, &tick_nonce
,
202 in
->ext
.tick_nonce
, in
->ext
.tick_nonce_len
);
204 as
.tlsext_max_fragment_len_mode
= in
->ext
.max_fragment_len_mode
;
206 if (in
->ticket_appdata
== NULL
)
207 as
.ticket_appdata
= NULL
;
209 ssl_session_oinit(&as
.ticket_appdata
, &ticket_appdata
,
210 in
->ticket_appdata
, in
->ticket_appdata_len
);
212 return i2d_SSL_SESSION_ASN1(&as
, pp
);
216 /* Utility functions for d2i_SSL_SESSION */
218 /* OPENSSL_strndup an OCTET STRING */
220 static int ssl_session_strndup(char **pdst
, ASN1_OCTET_STRING
*src
)
226 *pdst
= OPENSSL_strndup((char *)src
->data
, src
->length
);
232 /* Copy an OCTET STRING, return error if it exceeds maximum length */
234 static int ssl_session_memcpy(unsigned char *dst
, size_t *pdstlen
,
235 ASN1_OCTET_STRING
*src
, size_t maxlen
)
241 if (src
->length
< 0 || src
->length
> (int)maxlen
)
243 memcpy(dst
, src
->data
, src
->length
);
244 *pdstlen
= src
->length
;
248 SSL_SESSION
*d2i_SSL_SESSION(SSL_SESSION
**a
, const unsigned char **pp
,
253 const unsigned char *p
= *pp
;
254 SSL_SESSION_ASN1
*as
= NULL
;
255 SSL_SESSION
*ret
= NULL
;
257 as
= d2i_SSL_SESSION_ASN1(NULL
, &p
, length
);
258 /* ASN.1 code returns suitable error */
263 ret
= SSL_SESSION_new();
270 if (as
->version
!= SSL_SESSION_ASN1_VERSION
) {
271 SSLerr(SSL_F_D2I_SSL_SESSION
, SSL_R_UNKNOWN_SSL_VERSION
);
275 if ((as
->ssl_version
>> 8) != SSL3_VERSION_MAJOR
276 && (as
->ssl_version
>> 8) != DTLS1_VERSION_MAJOR
277 && as
->ssl_version
!= DTLS1_BAD_VER
) {
278 SSLerr(SSL_F_D2I_SSL_SESSION
, SSL_R_UNSUPPORTED_SSL_VERSION
);
282 ret
->ssl_version
= (int)as
->ssl_version
;
284 if (as
->cipher
->length
!= 2) {
285 SSLerr(SSL_F_D2I_SSL_SESSION
, SSL_R_CIPHER_CODE_WRONG_LENGTH
);
289 id
= 0x03000000L
| ((unsigned long)as
->cipher
->data
[0] << 8L)
290 | (unsigned long)as
->cipher
->data
[1];
293 ret
->cipher
= ssl3_get_cipher_by_id(id
);
294 if (ret
->cipher
== NULL
)
297 if (!ssl_session_memcpy(ret
->session_id
, &ret
->session_id_length
,
298 as
->session_id
, SSL3_MAX_SSL_SESSION_ID_LENGTH
))
301 if (!ssl_session_memcpy(ret
->master_key
, &tmpl
,
302 as
->master_key
, TLS13_MAX_RESUMPTION_MASTER_LENGTH
))
305 ret
->master_key_length
= tmpl
;
308 ret
->time
= (long)as
->time
;
310 ret
->time
= (long)time(NULL
);
312 if (as
->timeout
!= 0)
313 ret
->timeout
= (long)as
->timeout
;
317 X509_free(ret
->peer
);
318 ret
->peer
= as
->peer
;
321 if (!ssl_session_memcpy(ret
->sid_ctx
, &ret
->sid_ctx_length
,
322 as
->session_id_context
, SSL_MAX_SID_CTX_LENGTH
))
325 /* NB: this defaults to zero which is X509_V_OK */
326 ret
->verify_result
= as
->verify_result
;
328 if (!ssl_session_strndup(&ret
->ext
.hostname
, as
->tlsext_hostname
))
331 #ifndef OPENSSL_NO_PSK
332 if (!ssl_session_strndup(&ret
->psk_identity_hint
, as
->psk_identity_hint
))
334 if (!ssl_session_strndup(&ret
->psk_identity
, as
->psk_identity
))
338 ret
->ext
.tick_lifetime_hint
= (unsigned long)as
->tlsext_tick_lifetime_hint
;
339 ret
->ext
.tick_age_add
= as
->tlsext_tick_age_add
;
340 if (as
->tlsext_tick
) {
341 ret
->ext
.tick
= as
->tlsext_tick
->data
;
342 ret
->ext
.ticklen
= as
->tlsext_tick
->length
;
343 as
->tlsext_tick
->data
= NULL
;
345 ret
->ext
.tick
= NULL
;
347 #ifndef OPENSSL_NO_COMP
349 if (as
->comp_id
->length
!= 1) {
350 SSLerr(SSL_F_D2I_SSL_SESSION
, SSL_R_BAD_LENGTH
);
353 ret
->compress_meth
= as
->comp_id
->data
[0];
355 ret
->compress_meth
= 0;
359 #ifndef OPENSSL_NO_SRP
360 if (!ssl_session_strndup(&ret
->srp_username
, as
->srp_username
))
362 #endif /* OPENSSL_NO_SRP */
363 /* Flags defaults to zero which is fine */
364 ret
->flags
= (int32_t)as
->flags
;
365 ret
->ext
.max_early_data
= as
->max_early_data
;
367 if (as
->alpn_selected
!= NULL
) {
368 if (!ssl_session_strndup((char **)&ret
->ext
.alpn_selected
,
371 ret
->ext
.alpn_selected_len
= as
->alpn_selected
->length
;
373 ret
->ext
.alpn_selected
= NULL
;
374 ret
->ext
.alpn_selected_len
= 0;
377 if (as
->tick_nonce
!= NULL
) {
378 ret
->ext
.tick_nonce
= as
->tick_nonce
->data
;
379 ret
->ext
.tick_nonce_len
= as
->tick_nonce
->length
;
380 as
->tick_nonce
->data
= NULL
;
382 ret
->ext
.tick_nonce
= NULL
;
383 ret
->ext
.tick_nonce_len
= 0;
386 ret
->ext
.max_fragment_len_mode
= as
->tlsext_max_fragment_len_mode
;
388 if (as
->ticket_appdata
!= NULL
) {
389 ret
->ticket_appdata
= as
->ticket_appdata
->data
;
390 ret
->ticket_appdata_len
= as
->ticket_appdata
->length
;
391 as
->ticket_appdata
->data
= NULL
;
393 ret
->ticket_appdata
= NULL
;
394 ret
->ticket_appdata_len
= 0;
397 M_ASN1_free_of(as
, SSL_SESSION_ASN1
);
399 if ((a
!= NULL
) && (*a
== NULL
))
405 M_ASN1_free_of(as
, SSL_SESSION_ASN1
);
406 if ((a
== NULL
) || (*a
!= ret
))
407 SSL_SESSION_free(ret
);