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Commit | Line | Data |
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846e33c7 | 1 | /* |
b0edda11 | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
c80149d9 | 3 | * Copyright 2005 Nokia. All rights reserved. |
d02b48c6 | 4 | * |
2c18d164 | 5 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
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 | |
d02b48c6 | 9 | */ |
846e33c7 | 10 | |
d02b48c6 RE |
11 | #include <stdio.h> |
12 | #include <stdlib.h> | |
706457b7 | 13 | #include "ssl_local.h" |
64f11ee8 | 14 | #include <openssl/asn1t.h> |
b1fe6ca1 | 15 | #include <openssl/x509.h> |
d02b48c6 | 16 | |
cc5b6a03 | 17 | typedef struct { |
66ecfb54 RL |
18 | uint32_t version; |
19 | int32_t ssl_version; | |
cc5b6a03 DSH |
20 | ASN1_OCTET_STRING *cipher; |
21 | ASN1_OCTET_STRING *comp_id; | |
22 | ASN1_OCTET_STRING *master_key; | |
23 | ASN1_OCTET_STRING *session_id; | |
cc5b6a03 | 24 | ASN1_OCTET_STRING *key_arg; |
66ecfb54 RL |
25 | int64_t time; |
26 | int64_t timeout; | |
cc5b6a03 DSH |
27 | X509 *peer; |
28 | ASN1_OCTET_STRING *session_id_context; | |
66ecfb54 | 29 | int32_t verify_result; |
cc5b6a03 | 30 | ASN1_OCTET_STRING *tlsext_hostname; |
66ecfb54 RL |
31 | uint64_t tlsext_tick_lifetime_hint; |
32 | uint32_t tlsext_tick_age_add; | |
cc5b6a03 | 33 | ASN1_OCTET_STRING *tlsext_tick; |
e2010b20 | 34 | #ifndef OPENSSL_NO_PSK |
cc5b6a03 DSH |
35 | ASN1_OCTET_STRING *psk_identity_hint; |
36 | ASN1_OCTET_STRING *psk_identity; | |
37 | #endif | |
edc032b5 | 38 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 DSH |
39 | ASN1_OCTET_STRING *srp_username; |
40 | #endif | |
66ecfb54 | 41 | uint64_t flags; |
5d5b3fba | 42 | uint32_t max_early_data; |
f6370040 | 43 | ASN1_OCTET_STRING *alpn_selected; |
cf72c757 | 44 | uint32_t tlsext_max_fragment_len_mode; |
df0fed9a | 45 | ASN1_OCTET_STRING *ticket_appdata; |
0f113f3e | 46 | } SSL_SESSION_ASN1; |
d02b48c6 | 47 | |
cc5b6a03 | 48 | ASN1_SEQUENCE(SSL_SESSION_ASN1) = { |
9612e157 RL |
49 | ASN1_EMBED(SSL_SESSION_ASN1, version, UINT32), |
50 | ASN1_EMBED(SSL_SESSION_ASN1, ssl_version, INT32), | |
cc5b6a03 DSH |
51 | ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING), |
52 | ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING), | |
53 | ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING), | |
cc5b6a03 | 54 | ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0), |
9612e157 RL |
55 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, time, ZINT64, 1), |
56 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, timeout, ZINT64, 2), | |
cc5b6a03 DSH |
57 | ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3), |
58 | ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4), | |
9612e157 | 59 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, verify_result, ZINT32, 5), |
cc5b6a03 | 60 | ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6), |
cc5b6a03 DSH |
61 | #ifndef OPENSSL_NO_PSK |
62 | ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7), | |
63 | ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8), | |
64 | #endif | |
9612e157 | 65 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZUINT64, 9), |
cc5b6a03 | 66 | ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10), |
cc5b6a03 DSH |
67 | ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11), |
68 | #ifndef OPENSSL_NO_SRP | |
69 | ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12), | |
70 | #endif | |
9612e157 RL |
71 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, flags, ZUINT64, 13), |
72 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_age_add, ZUINT32, 14), | |
73 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, max_early_data, ZUINT32, 15), | |
9b6a8254 | 74 | ASN1_EXP_OPT(SSL_SESSION_ASN1, alpn_selected, ASN1_OCTET_STRING, 16), |
6cf2dbd9 MC |
75 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_max_fragment_len_mode, ZUINT32, 17), |
76 | ASN1_EXP_OPT(SSL_SESSION_ASN1, ticket_appdata, ASN1_OCTET_STRING, 18) | |
df2ee0e2 | 77 | } static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1) |
cc5b6a03 DSH |
78 | |
79 | IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1) | |
80 | ||
81 | /* Utility functions for i2d_SSL_SESSION */ | |
82 | ||
83 | /* Initialise OCTET STRING from buffer and length */ | |
84 | ||
85 | static void ssl_session_oinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os, | |
9fdcc21f | 86 | const unsigned char *data, size_t len) |
cc5b6a03 | 87 | { |
9fdcc21f | 88 | os->data = (unsigned char *)data; /* justified cast: data is not modified */ |
348240c6 | 89 | os->length = (int)len; |
cc5b6a03 DSH |
90 | os->flags = 0; |
91 | *dest = os; | |
92 | } | |
93 | ||
94 | /* Initialise OCTET STRING from string */ | |
95 | static void ssl_session_sinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os, | |
9fdcc21f | 96 | const char *data) |
cc5b6a03 DSH |
97 | { |
98 | if (data != NULL) | |
9fdcc21f | 99 | ssl_session_oinit(dest, os, (const unsigned char *)data, strlen(data)); |
cc5b6a03 DSH |
100 | else |
101 | *dest = NULL; | |
102 | } | |
103 | ||
9fdcc21f | 104 | int i2d_SSL_SESSION(const SSL_SESSION *in, unsigned char **pp) |
0f113f3e | 105 | { |
cc5b6a03 DSH |
106 | |
107 | SSL_SESSION_ASN1 as; | |
108 | ||
109 | ASN1_OCTET_STRING cipher; | |
110 | unsigned char cipher_data[2]; | |
111 | ASN1_OCTET_STRING master_key, session_id, sid_ctx; | |
112 | ||
113 | #ifndef OPENSSL_NO_COMP | |
114 | ASN1_OCTET_STRING comp_id; | |
115 | unsigned char comp_id_data; | |
116 | #endif | |
cc5b6a03 | 117 | ASN1_OCTET_STRING tlsext_hostname, tlsext_tick; |
edc032b5 | 118 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 DSH |
119 | ASN1_OCTET_STRING srp_username; |
120 | #endif | |
cc5b6a03 DSH |
121 | #ifndef OPENSSL_NO_PSK |
122 | ASN1_OCTET_STRING psk_identity, psk_identity_hint; | |
367eb1f1 | 123 | #endif |
f6370040 | 124 | ASN1_OCTET_STRING alpn_selected; |
df0fed9a | 125 | ASN1_OCTET_STRING ticket_appdata; |
cc5b6a03 | 126 | |
0f113f3e | 127 | long l; |
0f113f3e MC |
128 | |
129 | if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0))) | |
cc5b6a03 DSH |
130 | return 0; |
131 | ||
132 | memset(&as, 0, sizeof(as)); | |
133 | ||
134 | as.version = SSL_SESSION_ASN1_VERSION; | |
135 | as.ssl_version = in->ssl_version; | |
0f113f3e MC |
136 | |
137 | if (in->cipher == NULL) | |
138 | l = in->cipher_id; | |
139 | else | |
140 | l = in->cipher->id; | |
cc5b6a03 DSH |
141 | cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff; |
142 | cipher_data[1] = ((unsigned char)(l)) & 0xff; | |
143 | ||
144 | ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2); | |
d02b48c6 | 145 | |
9de014a7 | 146 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 147 | if (in->compress_meth) { |
cc5b6a03 DSH |
148 | comp_id_data = (unsigned char)in->compress_meth; |
149 | ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1); | |
0f113f3e | 150 | } |
9de014a7 DSH |
151 | #endif |
152 | ||
cc5b6a03 DSH |
153 | ssl_session_oinit(&as.master_key, &master_key, |
154 | in->master_key, in->master_key_length); | |
d02b48c6 | 155 | |
cc5b6a03 DSH |
156 | ssl_session_oinit(&as.session_id, &session_id, |
157 | in->session_id, in->session_id_length); | |
b4cadc6e | 158 | |
cc5b6a03 DSH |
159 | ssl_session_oinit(&as.session_id_context, &sid_ctx, |
160 | in->sid_ctx, in->sid_ctx_length); | |
0f113f3e | 161 | |
cc5b6a03 DSH |
162 | as.time = in->time; |
163 | as.timeout = in->timeout; | |
164 | as.verify_result = in->verify_result; | |
0f113f3e | 165 | |
cc5b6a03 | 166 | as.peer = in->peer; |
0f113f3e | 167 | |
cc5b6a03 | 168 | ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname, |
aff8c126 RS |
169 | in->ext.hostname); |
170 | if (in->ext.tick) { | |
cc5b6a03 | 171 | ssl_session_oinit(&as.tlsext_tick, &tlsext_tick, |
aff8c126 | 172 | in->ext.tick, in->ext.ticklen); |
0f113f3e | 173 | } |
aff8c126 RS |
174 | if (in->ext.tick_lifetime_hint > 0) |
175 | as.tlsext_tick_lifetime_hint = in->ext.tick_lifetime_hint; | |
fc24f0bf | 176 | as.tlsext_tick_age_add = in->ext.tick_age_add; |
ddac1974 | 177 | #ifndef OPENSSL_NO_PSK |
cc5b6a03 DSH |
178 | ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint, |
179 | in->psk_identity_hint); | |
180 | ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity); | |
0f113f3e | 181 | #endif /* OPENSSL_NO_PSK */ |
edc032b5 | 182 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 | 183 | ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username); |
0f113f3e MC |
184 | #endif /* OPENSSL_NO_SRP */ |
185 | ||
cc5b6a03 | 186 | as.flags = in->flags; |
5d5b3fba | 187 | as.max_early_data = in->ext.max_early_data; |
6f152a15 | 188 | |
f6370040 MC |
189 | if (in->ext.alpn_selected == NULL) |
190 | as.alpn_selected = NULL; | |
191 | else | |
192 | ssl_session_oinit(&as.alpn_selected, &alpn_selected, | |
193 | in->ext.alpn_selected, in->ext.alpn_selected_len); | |
194 | ||
cf72c757 F |
195 | as.tlsext_max_fragment_len_mode = in->ext.max_fragment_len_mode; |
196 | ||
df0fed9a TS |
197 | if (in->ticket_appdata == NULL) |
198 | as.ticket_appdata = NULL; | |
199 | else | |
200 | ssl_session_oinit(&as.ticket_appdata, &ticket_appdata, | |
201 | in->ticket_appdata, in->ticket_appdata_len); | |
202 | ||
cc5b6a03 | 203 | return i2d_SSL_SESSION_ASN1(&as, pp); |
d02b48c6 | 204 | |
cc5b6a03 | 205 | } |
0f113f3e | 206 | |
cc5b6a03 | 207 | /* Utility functions for d2i_SSL_SESSION */ |
0f113f3e | 208 | |
7644a9ae | 209 | /* OPENSSL_strndup an OCTET STRING */ |
cc5b6a03 DSH |
210 | |
211 | static int ssl_session_strndup(char **pdst, ASN1_OCTET_STRING *src) | |
212 | { | |
b548a1f1 RS |
213 | OPENSSL_free(*pdst); |
214 | *pdst = NULL; | |
cc5b6a03 DSH |
215 | if (src == NULL) |
216 | return 1; | |
7644a9ae | 217 | *pdst = OPENSSL_strndup((char *)src->data, src->length); |
cc5b6a03 DSH |
218 | if (*pdst == NULL) |
219 | return 0; | |
220 | return 1; | |
221 | } | |
222 | ||
223 | /* Copy an OCTET STRING, return error if it exceeds maximum length */ | |
224 | ||
ec60ccc1 MC |
225 | static int ssl_session_memcpy(unsigned char *dst, size_t *pdstlen, |
226 | ASN1_OCTET_STRING *src, size_t maxlen) | |
cc5b6a03 DSH |
227 | { |
228 | if (src == NULL) { | |
229 | *pdstlen = 0; | |
230 | return 1; | |
231 | } | |
ec60ccc1 | 232 | if (src->length < 0 || src->length > (int)maxlen) |
cc5b6a03 DSH |
233 | return 0; |
234 | memcpy(dst, src->data, src->length); | |
235 | *pdstlen = src->length; | |
236 | return 1; | |
0f113f3e | 237 | } |
d02b48c6 | 238 | |
41a15c4f | 239 | SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp, |
0f113f3e MC |
240 | long length) |
241 | { | |
0f113f3e | 242 | long id; |
ec60ccc1 | 243 | size_t tmpl; |
cc5b6a03 DSH |
244 | const unsigned char *p = *pp; |
245 | SSL_SESSION_ASN1 *as = NULL; | |
246 | SSL_SESSION *ret = NULL; | |
247 | ||
248 | as = d2i_SSL_SESSION_ASN1(NULL, &p, length); | |
249 | /* ASN.1 code returns suitable error */ | |
250 | if (as == NULL) | |
251 | goto err; | |
0f113f3e | 252 | |
12a765a5 | 253 | if (a == NULL || *a == NULL) { |
cc5b6a03 DSH |
254 | ret = SSL_SESSION_new(); |
255 | if (ret == NULL) | |
0f113f3e | 256 | goto err; |
0f113f3e | 257 | } else { |
cc5b6a03 DSH |
258 | ret = *a; |
259 | } | |
260 | ||
261 | if (as->version != SSL_SESSION_ASN1_VERSION) { | |
262 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION); | |
0f113f3e MC |
263 | goto err; |
264 | } | |
265 | ||
cc5b6a03 DSH |
266 | if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR |
267 | && (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR | |
268 | && as->ssl_version != DTLS1_BAD_VER) { | |
269 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION); | |
270 | goto err; | |
271 | } | |
0f113f3e | 272 | |
cc5b6a03 | 273 | ret->ssl_version = (int)as->ssl_version; |
0f113f3e | 274 | |
cc5b6a03 DSH |
275 | if (as->cipher->length != 2) { |
276 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH); | |
277 | goto err; | |
278 | } | |
0f113f3e | 279 | |
a0179d0a BE |
280 | id = 0x03000000L | ((unsigned long)as->cipher->data[0] << 8L) |
281 | | (unsigned long)as->cipher->data[1]; | |
0f113f3e | 282 | |
cc5b6a03 | 283 | ret->cipher_id = id; |
534a43ff MC |
284 | ret->cipher = ssl3_get_cipher_by_id(id); |
285 | if (ret->cipher == NULL) | |
286 | goto err; | |
0f113f3e | 287 | |
cc5b6a03 DSH |
288 | if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length, |
289 | as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH)) | |
290 | goto err; | |
291 | ||
292 | if (!ssl_session_memcpy(ret->master_key, &tmpl, | |
4ff1a526 | 293 | as->master_key, TLS13_MAX_RESUMPTION_PSK_LENGTH)) |
cc5b6a03 DSH |
294 | goto err; |
295 | ||
296 | ret->master_key_length = tmpl; | |
98fa4fe8 | 297 | |
cc5b6a03 | 298 | if (as->time != 0) |
802127e8 | 299 | ret->time = (long)as->time; |
cc5b6a03 | 300 | else |
802127e8 | 301 | ret->time = (long)time(NULL); |
0f113f3e | 302 | |
cc5b6a03 | 303 | if (as->timeout != 0) |
802127e8 | 304 | ret->timeout = (long)as->timeout; |
cc5b6a03 | 305 | else |
0f113f3e MC |
306 | ret->timeout = 3; |
307 | ||
cc5b6a03 DSH |
308 | X509_free(ret->peer); |
309 | ret->peer = as->peer; | |
310 | as->peer = NULL; | |
0f113f3e | 311 | |
cc5b6a03 DSH |
312 | if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length, |
313 | as->session_id_context, SSL_MAX_SID_CTX_LENGTH)) | |
314 | goto err; | |
0f113f3e | 315 | |
cc5b6a03 DSH |
316 | /* NB: this defaults to zero which is X509_V_OK */ |
317 | ret->verify_result = as->verify_result; | |
b1fe6ca1 | 318 | |
aff8c126 | 319 | if (!ssl_session_strndup(&ret->ext.hostname, as->tlsext_hostname)) |
cc5b6a03 | 320 | goto err; |
ed3883d2 | 321 | |
ddac1974 | 322 | #ifndef OPENSSL_NO_PSK |
cc5b6a03 DSH |
323 | if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint)) |
324 | goto err; | |
325 | if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity)) | |
326 | goto err; | |
327 | #endif | |
ddac1974 | 328 | |
802127e8 | 329 | ret->ext.tick_lifetime_hint = (unsigned long)as->tlsext_tick_lifetime_hint; |
fc24f0bf | 330 | ret->ext.tick_age_add = as->tlsext_tick_age_add; |
27232cc3 MC |
331 | OPENSSL_free(ret->ext.tick); |
332 | if (as->tlsext_tick != NULL) { | |
aff8c126 RS |
333 | ret->ext.tick = as->tlsext_tick->data; |
334 | ret->ext.ticklen = as->tlsext_tick->length; | |
cc5b6a03 DSH |
335 | as->tlsext_tick->data = NULL; |
336 | } else { | |
aff8c126 | 337 | ret->ext.tick = NULL; |
cc5b6a03 | 338 | } |
9de014a7 | 339 | #ifndef OPENSSL_NO_COMP |
cc5b6a03 DSH |
340 | if (as->comp_id) { |
341 | if (as->comp_id->length != 1) { | |
342 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH); | |
343 | goto err; | |
344 | } | |
345 | ret->compress_meth = as->comp_id->data[0]; | |
346 | } else { | |
347 | ret->compress_meth = 0; | |
0f113f3e | 348 | } |
9de014a7 | 349 | #endif |
ddac1974 | 350 | |
edc032b5 | 351 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 DSH |
352 | if (!ssl_session_strndup(&ret->srp_username, as->srp_username)) |
353 | goto err; | |
0f113f3e | 354 | #endif /* OPENSSL_NO_SRP */ |
cc5b6a03 | 355 | /* Flags defaults to zero which is fine */ |
802127e8 | 356 | ret->flags = (int32_t)as->flags; |
5d5b3fba | 357 | ret->ext.max_early_data = as->max_early_data; |
cc5b6a03 | 358 | |
27232cc3 | 359 | OPENSSL_free(ret->ext.alpn_selected); |
f6370040 | 360 | if (as->alpn_selected != NULL) { |
27232cc3 | 361 | ret->ext.alpn_selected = as->alpn_selected->data; |
f6370040 | 362 | ret->ext.alpn_selected_len = as->alpn_selected->length; |
27232cc3 | 363 | as->alpn_selected->data = NULL; |
f6370040 MC |
364 | } else { |
365 | ret->ext.alpn_selected = NULL; | |
366 | ret->ext.alpn_selected_len = 0; | |
367 | } | |
368 | ||
cf72c757 F |
369 | ret->ext.max_fragment_len_mode = as->tlsext_max_fragment_len_mode; |
370 | ||
27232cc3 | 371 | OPENSSL_free(ret->ticket_appdata); |
df0fed9a TS |
372 | if (as->ticket_appdata != NULL) { |
373 | ret->ticket_appdata = as->ticket_appdata->data; | |
374 | ret->ticket_appdata_len = as->ticket_appdata->length; | |
375 | as->ticket_appdata->data = NULL; | |
376 | } else { | |
377 | ret->ticket_appdata = NULL; | |
378 | ret->ticket_appdata_len = 0; | |
379 | } | |
380 | ||
cc5b6a03 DSH |
381 | M_ASN1_free_of(as, SSL_SESSION_ASN1); |
382 | ||
383 | if ((a != NULL) && (*a == NULL)) | |
384 | *a = ret; | |
385 | *pp = p; | |
386 | return ret; | |
387 | ||
a230b26e | 388 | err: |
cc5b6a03 DSH |
389 | M_ASN1_free_of(as, SSL_SESSION_ASN1); |
390 | if ((a == NULL) || (*a != ret)) | |
391 | SSL_SESSION_free(ret); | |
392 | return NULL; | |
0f113f3e | 393 | } |