]>
Commit | Line | Data |
---|---|---|
846e33c7 | 1 | /* |
66ecfb54 | 2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. |
c80149d9 | 3 | * Copyright 2005 Nokia. All rights reserved. |
d02b48c6 | 4 | * |
846e33c7 RS |
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 | |
d02b48c6 | 9 | */ |
846e33c7 | 10 | |
d02b48c6 RE |
11 | #include <stdio.h> |
12 | #include <stdlib.h> | |
7b63c0fa | 13 | #include "ssl_locl.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; |
0f113f3e | 44 | } SSL_SESSION_ASN1; |
d02b48c6 | 45 | |
cc5b6a03 | 46 | ASN1_SEQUENCE(SSL_SESSION_ASN1) = { |
9612e157 RL |
47 | ASN1_EMBED(SSL_SESSION_ASN1, version, UINT32), |
48 | ASN1_EMBED(SSL_SESSION_ASN1, ssl_version, INT32), | |
cc5b6a03 DSH |
49 | ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING), |
50 | ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING), | |
51 | ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING), | |
cc5b6a03 | 52 | ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0), |
9612e157 RL |
53 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, time, ZINT64, 1), |
54 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, timeout, ZINT64, 2), | |
cc5b6a03 DSH |
55 | ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3), |
56 | ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4), | |
9612e157 | 57 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, verify_result, ZINT32, 5), |
cc5b6a03 | 58 | ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6), |
cc5b6a03 DSH |
59 | #ifndef OPENSSL_NO_PSK |
60 | ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7), | |
61 | ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8), | |
62 | #endif | |
9612e157 | 63 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZUINT64, 9), |
cc5b6a03 | 64 | ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10), |
cc5b6a03 DSH |
65 | ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11), |
66 | #ifndef OPENSSL_NO_SRP | |
67 | ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12), | |
68 | #endif | |
9612e157 RL |
69 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, flags, ZUINT64, 13), |
70 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_age_add, ZUINT32, 14), | |
71 | ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, max_early_data, ZUINT32, 15), | |
f6370040 | 72 | ASN1_EXP_OPT(SSL_SESSION_ASN1, alpn_selected, ASN1_OCTET_STRING, 16) |
df2ee0e2 | 73 | } static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1) |
cc5b6a03 DSH |
74 | |
75 | IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1) | |
76 | ||
77 | /* Utility functions for i2d_SSL_SESSION */ | |
78 | ||
79 | /* Initialise OCTET STRING from buffer and length */ | |
80 | ||
81 | static void ssl_session_oinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os, | |
82 | unsigned char *data, size_t len) | |
83 | { | |
84 | os->data = data; | |
348240c6 | 85 | os->length = (int)len; |
cc5b6a03 DSH |
86 | os->flags = 0; |
87 | *dest = os; | |
88 | } | |
89 | ||
90 | /* Initialise OCTET STRING from string */ | |
91 | static void ssl_session_sinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os, | |
92 | char *data) | |
93 | { | |
94 | if (data != NULL) | |
95 | ssl_session_oinit(dest, os, (unsigned char *)data, strlen(data)); | |
96 | else | |
97 | *dest = NULL; | |
98 | } | |
99 | ||
6b691a5c | 100 | int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp) |
0f113f3e | 101 | { |
cc5b6a03 DSH |
102 | |
103 | SSL_SESSION_ASN1 as; | |
104 | ||
105 | ASN1_OCTET_STRING cipher; | |
106 | unsigned char cipher_data[2]; | |
107 | ASN1_OCTET_STRING master_key, session_id, sid_ctx; | |
108 | ||
109 | #ifndef OPENSSL_NO_COMP | |
110 | ASN1_OCTET_STRING comp_id; | |
111 | unsigned char comp_id_data; | |
112 | #endif | |
cc5b6a03 | 113 | ASN1_OCTET_STRING tlsext_hostname, tlsext_tick; |
edc032b5 | 114 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 DSH |
115 | ASN1_OCTET_STRING srp_username; |
116 | #endif | |
cc5b6a03 DSH |
117 | #ifndef OPENSSL_NO_PSK |
118 | ASN1_OCTET_STRING psk_identity, psk_identity_hint; | |
367eb1f1 | 119 | #endif |
f6370040 | 120 | ASN1_OCTET_STRING alpn_selected; |
cc5b6a03 | 121 | |
0f113f3e | 122 | long l; |
0f113f3e MC |
123 | |
124 | if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0))) | |
cc5b6a03 DSH |
125 | return 0; |
126 | ||
127 | memset(&as, 0, sizeof(as)); | |
128 | ||
129 | as.version = SSL_SESSION_ASN1_VERSION; | |
130 | as.ssl_version = in->ssl_version; | |
0f113f3e MC |
131 | |
132 | if (in->cipher == NULL) | |
133 | l = in->cipher_id; | |
134 | else | |
135 | l = in->cipher->id; | |
cc5b6a03 DSH |
136 | cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff; |
137 | cipher_data[1] = ((unsigned char)(l)) & 0xff; | |
138 | ||
139 | ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2); | |
d02b48c6 | 140 | |
9de014a7 | 141 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 142 | if (in->compress_meth) { |
cc5b6a03 DSH |
143 | comp_id_data = (unsigned char)in->compress_meth; |
144 | ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1); | |
0f113f3e | 145 | } |
9de014a7 DSH |
146 | #endif |
147 | ||
cc5b6a03 DSH |
148 | ssl_session_oinit(&as.master_key, &master_key, |
149 | in->master_key, in->master_key_length); | |
d02b48c6 | 150 | |
cc5b6a03 DSH |
151 | ssl_session_oinit(&as.session_id, &session_id, |
152 | in->session_id, in->session_id_length); | |
b4cadc6e | 153 | |
cc5b6a03 DSH |
154 | ssl_session_oinit(&as.session_id_context, &sid_ctx, |
155 | in->sid_ctx, in->sid_ctx_length); | |
0f113f3e | 156 | |
cc5b6a03 DSH |
157 | as.time = in->time; |
158 | as.timeout = in->timeout; | |
159 | as.verify_result = in->verify_result; | |
0f113f3e | 160 | |
cc5b6a03 | 161 | as.peer = in->peer; |
0f113f3e | 162 | |
cc5b6a03 | 163 | ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname, |
aff8c126 RS |
164 | in->ext.hostname); |
165 | if (in->ext.tick) { | |
cc5b6a03 | 166 | ssl_session_oinit(&as.tlsext_tick, &tlsext_tick, |
aff8c126 | 167 | in->ext.tick, in->ext.ticklen); |
0f113f3e | 168 | } |
aff8c126 RS |
169 | if (in->ext.tick_lifetime_hint > 0) |
170 | as.tlsext_tick_lifetime_hint = in->ext.tick_lifetime_hint; | |
fc24f0bf | 171 | as.tlsext_tick_age_add = in->ext.tick_age_add; |
ddac1974 | 172 | #ifndef OPENSSL_NO_PSK |
cc5b6a03 DSH |
173 | ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint, |
174 | in->psk_identity_hint); | |
175 | ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity); | |
0f113f3e | 176 | #endif /* OPENSSL_NO_PSK */ |
edc032b5 | 177 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 | 178 | ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username); |
0f113f3e MC |
179 | #endif /* OPENSSL_NO_SRP */ |
180 | ||
cc5b6a03 | 181 | as.flags = in->flags; |
5d5b3fba | 182 | as.max_early_data = in->ext.max_early_data; |
6f152a15 | 183 | |
f6370040 MC |
184 | if (in->ext.alpn_selected == NULL) |
185 | as.alpn_selected = NULL; | |
186 | else | |
187 | ssl_session_oinit(&as.alpn_selected, &alpn_selected, | |
188 | in->ext.alpn_selected, in->ext.alpn_selected_len); | |
189 | ||
cc5b6a03 | 190 | return i2d_SSL_SESSION_ASN1(&as, pp); |
d02b48c6 | 191 | |
cc5b6a03 | 192 | } |
0f113f3e | 193 | |
cc5b6a03 | 194 | /* Utility functions for d2i_SSL_SESSION */ |
0f113f3e | 195 | |
7644a9ae | 196 | /* OPENSSL_strndup an OCTET STRING */ |
cc5b6a03 DSH |
197 | |
198 | static int ssl_session_strndup(char **pdst, ASN1_OCTET_STRING *src) | |
199 | { | |
b548a1f1 RS |
200 | OPENSSL_free(*pdst); |
201 | *pdst = NULL; | |
cc5b6a03 DSH |
202 | if (src == NULL) |
203 | return 1; | |
7644a9ae | 204 | *pdst = OPENSSL_strndup((char *)src->data, src->length); |
cc5b6a03 DSH |
205 | if (*pdst == NULL) |
206 | return 0; | |
207 | return 1; | |
208 | } | |
209 | ||
210 | /* Copy an OCTET STRING, return error if it exceeds maximum length */ | |
211 | ||
ec60ccc1 MC |
212 | static int ssl_session_memcpy(unsigned char *dst, size_t *pdstlen, |
213 | ASN1_OCTET_STRING *src, size_t maxlen) | |
cc5b6a03 DSH |
214 | { |
215 | if (src == NULL) { | |
216 | *pdstlen = 0; | |
217 | return 1; | |
218 | } | |
ec60ccc1 | 219 | if (src->length < 0 || src->length > (int)maxlen) |
cc5b6a03 DSH |
220 | return 0; |
221 | memcpy(dst, src->data, src->length); | |
222 | *pdstlen = src->length; | |
223 | return 1; | |
0f113f3e | 224 | } |
d02b48c6 | 225 | |
41a15c4f | 226 | SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp, |
0f113f3e MC |
227 | long length) |
228 | { | |
0f113f3e | 229 | long id; |
ec60ccc1 | 230 | size_t tmpl; |
cc5b6a03 DSH |
231 | const unsigned char *p = *pp; |
232 | SSL_SESSION_ASN1 *as = NULL; | |
233 | SSL_SESSION *ret = NULL; | |
234 | ||
235 | as = d2i_SSL_SESSION_ASN1(NULL, &p, length); | |
236 | /* ASN.1 code returns suitable error */ | |
237 | if (as == NULL) | |
238 | goto err; | |
0f113f3e | 239 | |
cc5b6a03 DSH |
240 | if (!a || !*a) { |
241 | ret = SSL_SESSION_new(); | |
242 | if (ret == NULL) | |
0f113f3e | 243 | goto err; |
0f113f3e | 244 | } else { |
cc5b6a03 DSH |
245 | ret = *a; |
246 | } | |
247 | ||
248 | if (as->version != SSL_SESSION_ASN1_VERSION) { | |
249 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION); | |
0f113f3e MC |
250 | goto err; |
251 | } | |
252 | ||
cc5b6a03 DSH |
253 | if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR |
254 | && (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR | |
255 | && as->ssl_version != DTLS1_BAD_VER) { | |
256 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION); | |
257 | goto err; | |
258 | } | |
0f113f3e | 259 | |
cc5b6a03 | 260 | ret->ssl_version = (int)as->ssl_version; |
0f113f3e | 261 | |
cc5b6a03 DSH |
262 | if (as->cipher->length != 2) { |
263 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH); | |
264 | goto err; | |
265 | } | |
0f113f3e | 266 | |
a0179d0a BE |
267 | id = 0x03000000L | ((unsigned long)as->cipher->data[0] << 8L) |
268 | | (unsigned long)as->cipher->data[1]; | |
0f113f3e | 269 | |
cc5b6a03 | 270 | ret->cipher_id = id; |
534a43ff MC |
271 | ret->cipher = ssl3_get_cipher_by_id(id); |
272 | if (ret->cipher == NULL) | |
273 | goto err; | |
0f113f3e | 274 | |
cc5b6a03 DSH |
275 | if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length, |
276 | as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH)) | |
277 | goto err; | |
278 | ||
279 | if (!ssl_session_memcpy(ret->master_key, &tmpl, | |
1a3392c8 | 280 | as->master_key, TLS13_MAX_RESUMPTION_MASTER_LENGTH)) |
cc5b6a03 DSH |
281 | goto err; |
282 | ||
283 | ret->master_key_length = tmpl; | |
98fa4fe8 | 284 | |
cc5b6a03 DSH |
285 | if (as->time != 0) |
286 | ret->time = as->time; | |
287 | else | |
0f113f3e MC |
288 | ret->time = (unsigned long)time(NULL); |
289 | ||
cc5b6a03 DSH |
290 | if (as->timeout != 0) |
291 | ret->timeout = as->timeout; | |
292 | else | |
0f113f3e MC |
293 | ret->timeout = 3; |
294 | ||
cc5b6a03 DSH |
295 | X509_free(ret->peer); |
296 | ret->peer = as->peer; | |
297 | as->peer = NULL; | |
0f113f3e | 298 | |
cc5b6a03 DSH |
299 | if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length, |
300 | as->session_id_context, SSL_MAX_SID_CTX_LENGTH)) | |
301 | goto err; | |
0f113f3e | 302 | |
cc5b6a03 DSH |
303 | /* NB: this defaults to zero which is X509_V_OK */ |
304 | ret->verify_result = as->verify_result; | |
b1fe6ca1 | 305 | |
aff8c126 | 306 | if (!ssl_session_strndup(&ret->ext.hostname, as->tlsext_hostname)) |
cc5b6a03 | 307 | goto err; |
ed3883d2 | 308 | |
ddac1974 | 309 | #ifndef OPENSSL_NO_PSK |
cc5b6a03 DSH |
310 | if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint)) |
311 | goto err; | |
312 | if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity)) | |
313 | goto err; | |
314 | #endif | |
ddac1974 | 315 | |
aff8c126 | 316 | ret->ext.tick_lifetime_hint = as->tlsext_tick_lifetime_hint; |
fc24f0bf | 317 | ret->ext.tick_age_add = as->tlsext_tick_age_add; |
cc5b6a03 | 318 | if (as->tlsext_tick) { |
aff8c126 RS |
319 | ret->ext.tick = as->tlsext_tick->data; |
320 | ret->ext.ticklen = as->tlsext_tick->length; | |
cc5b6a03 DSH |
321 | as->tlsext_tick->data = NULL; |
322 | } else { | |
aff8c126 | 323 | ret->ext.tick = NULL; |
cc5b6a03 | 324 | } |
9de014a7 | 325 | #ifndef OPENSSL_NO_COMP |
cc5b6a03 DSH |
326 | if (as->comp_id) { |
327 | if (as->comp_id->length != 1) { | |
328 | SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH); | |
329 | goto err; | |
330 | } | |
331 | ret->compress_meth = as->comp_id->data[0]; | |
332 | } else { | |
333 | ret->compress_meth = 0; | |
0f113f3e | 334 | } |
9de014a7 | 335 | #endif |
ddac1974 | 336 | |
edc032b5 | 337 | #ifndef OPENSSL_NO_SRP |
cc5b6a03 DSH |
338 | if (!ssl_session_strndup(&ret->srp_username, as->srp_username)) |
339 | goto err; | |
0f113f3e | 340 | #endif /* OPENSSL_NO_SRP */ |
cc5b6a03 DSH |
341 | /* Flags defaults to zero which is fine */ |
342 | ret->flags = as->flags; | |
5d5b3fba | 343 | ret->ext.max_early_data = as->max_early_data; |
cc5b6a03 | 344 | |
f6370040 MC |
345 | if (as->alpn_selected != NULL) { |
346 | if (!ssl_session_strndup((char **)&ret->ext.alpn_selected, | |
347 | as->alpn_selected)) | |
348 | goto err; | |
349 | ret->ext.alpn_selected_len = as->alpn_selected->length; | |
350 | } else { | |
351 | ret->ext.alpn_selected = NULL; | |
352 | ret->ext.alpn_selected_len = 0; | |
353 | } | |
354 | ||
cc5b6a03 DSH |
355 | M_ASN1_free_of(as, SSL_SESSION_ASN1); |
356 | ||
357 | if ((a != NULL) && (*a == NULL)) | |
358 | *a = ret; | |
359 | *pp = p; | |
360 | return ret; | |
361 | ||
a230b26e | 362 | err: |
cc5b6a03 DSH |
363 | M_ASN1_free_of(as, SSL_SESSION_ASN1); |
364 | if ((a == NULL) || (*a != ret)) | |
365 | SSL_SESSION_free(ret); | |
366 | return NULL; | |
0f113f3e | 367 | } |