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0f113f3e | 1 | /* |
677963e5 | 2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. |
aa8f3d76 | 3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved |
c80149d9 | 4 | * Copyright 2005 Nokia. All rights reserved. |
bf21446a | 5 | * |
846e33c7 RS |
6 | * Licensed under the OpenSSL license (the "License"). You may not use |
7 | * this file except in compliance with the License. You can obtain a copy | |
8 | * in the file LICENSE in the source distribution or at | |
9 | * https://www.openssl.org/source/license.html | |
bf21446a | 10 | */ |
846e33c7 | 11 | |
d02b48c6 | 12 | #include <stdio.h> |
7b63c0fa | 13 | #include "ssl_locl.h" |
ec577822 | 14 | #include <openssl/objects.h> |
bb7cd4e3 | 15 | #include <openssl/x509v3.h> |
6434abbf | 16 | #include <openssl/rand.h> |
67c8e7f4 | 17 | #include <openssl/ocsp.h> |
3c27208f RS |
18 | #include <openssl/dh.h> |
19 | #include <openssl/engine.h> | |
07bbc92c | 20 | #include <openssl/async.h> |
3c27208f | 21 | #include <openssl/ct.h> |
67dc995e | 22 | #include "internal/cryptlib.h" |
ae3947de | 23 | #include "internal/rand.h" |
cd420b0b | 24 | #include "internal/refcount.h" |
0f113f3e | 25 | |
df2ee0e2 | 26 | const char SSL_version_str[] = OPENSSL_VERSION_TEXT; |
0f113f3e MC |
27 | |
28 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
29 | /* | |
30 | * evil casts, but these functions are only called if there's a library | |
31 | * bug | |
32 | */ | |
72716e79 | 33 | (int (*)(SSL *, SSL3_RECORD *, size_t, int))ssl_undefined_function, |
d102d9df | 34 | (int (*)(SSL *, SSL3_RECORD *, unsigned char *, int))ssl_undefined_function, |
0f113f3e | 35 | ssl_undefined_function, |
8c1a5343 | 36 | (int (*)(SSL *, unsigned char *, unsigned char *, size_t, size_t *)) |
0f113f3e MC |
37 | ssl_undefined_function, |
38 | (int (*)(SSL *, int))ssl_undefined_function, | |
6db6bc5a | 39 | (size_t (*)(SSL *, const char *, size_t, unsigned char *)) |
0f113f3e | 40 | ssl_undefined_function, |
0f113f3e MC |
41 | NULL, /* client_finished_label */ |
42 | 0, /* client_finished_label_len */ | |
43 | NULL, /* server_finished_label */ | |
44 | 0, /* server_finished_label_len */ | |
45 | (int (*)(int))ssl_undefined_function, | |
46 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
47 | size_t, const unsigned char *, size_t, | |
48 | int use_context))ssl_undefined_function, | |
49 | }; | |
d02b48c6 | 50 | |
07bbc92c MC |
51 | struct ssl_async_args { |
52 | SSL *s; | |
53 | void *buf; | |
348240c6 | 54 | size_t num; |
a230b26e | 55 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 56 | union { |
eda75751 | 57 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 58 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 59 | int (*func_other) (SSL *); |
add2f5ca | 60 | } f; |
07bbc92c MC |
61 | }; |
62 | ||
919ba009 VD |
63 | static const struct { |
64 | uint8_t mtype; | |
65 | uint8_t ord; | |
a230b26e | 66 | int nid; |
919ba009 | 67 | } dane_mds[] = { |
a230b26e EK |
68 | { |
69 | DANETLS_MATCHING_FULL, 0, NID_undef | |
70 | }, | |
71 | { | |
72 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
73 | }, | |
74 | { | |
75 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
76 | }, | |
919ba009 VD |
77 | }; |
78 | ||
79 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
80 | { | |
81 | const EVP_MD **mdevp; | |
82 | uint8_t *mdord; | |
83 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 84 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
85 | size_t i; |
86 | ||
5ae4ceb9 VD |
87 | if (dctx->mdevp != NULL) |
88 | return 1; | |
89 | ||
919ba009 VD |
90 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
91 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
92 | ||
93 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 94 | OPENSSL_free(mdord); |
919ba009 VD |
95 | OPENSSL_free(mdevp); |
96 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
97 | return 0; | |
98 | } | |
99 | ||
100 | /* Install default entries */ | |
101 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
102 | const EVP_MD *md; | |
103 | ||
104 | if (dane_mds[i].nid == NID_undef || | |
105 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
106 | continue; | |
107 | mdevp[dane_mds[i].mtype] = md; | |
108 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
109 | } | |
110 | ||
111 | dctx->mdevp = mdevp; | |
112 | dctx->mdord = mdord; | |
113 | dctx->mdmax = mdmax; | |
114 | ||
115 | return 1; | |
116 | } | |
117 | ||
118 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
119 | { | |
120 | OPENSSL_free(dctx->mdevp); | |
121 | dctx->mdevp = NULL; | |
122 | ||
123 | OPENSSL_free(dctx->mdord); | |
124 | dctx->mdord = NULL; | |
125 | dctx->mdmax = 0; | |
126 | } | |
127 | ||
128 | static void tlsa_free(danetls_record *t) | |
129 | { | |
130 | if (t == NULL) | |
131 | return; | |
132 | OPENSSL_free(t->data); | |
133 | EVP_PKEY_free(t->spki); | |
134 | OPENSSL_free(t); | |
135 | } | |
136 | ||
b9aec69a | 137 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
138 | { |
139 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
140 | dane->trecs = NULL; | |
141 | ||
142 | sk_X509_pop_free(dane->certs, X509_free); | |
143 | dane->certs = NULL; | |
144 | ||
145 | X509_free(dane->mcert); | |
146 | dane->mcert = NULL; | |
147 | dane->mtlsa = NULL; | |
148 | dane->mdpth = -1; | |
149 | dane->pdpth = -1; | |
150 | } | |
151 | ||
152 | /* | |
153 | * dane_copy - Copy dane configuration, sans verification state. | |
154 | */ | |
155 | static int ssl_dane_dup(SSL *to, SSL *from) | |
156 | { | |
157 | int num; | |
158 | int i; | |
159 | ||
160 | if (!DANETLS_ENABLED(&from->dane)) | |
161 | return 1; | |
162 | ||
e431363f | 163 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 | 164 | dane_final(&to->dane); |
5ae4ceb9 | 165 | to->dane.flags = from->dane.flags; |
9f6b22b8 | 166 | to->dane.dctx = &to->ctx->dane; |
7a908204 | 167 | to->dane.trecs = sk_danetls_record_new_reserve(NULL, num); |
9f6b22b8 VD |
168 | |
169 | if (to->dane.trecs == NULL) { | |
170 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
171 | return 0; | |
172 | } | |
919ba009 | 173 | |
919ba009 VD |
174 | for (i = 0; i < num; ++i) { |
175 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 176 | |
919ba009 VD |
177 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
178 | t->data, t->dlen) <= 0) | |
179 | return 0; | |
180 | } | |
181 | return 1; | |
182 | } | |
183 | ||
a230b26e EK |
184 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
185 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
186 | { |
187 | int i; | |
188 | ||
189 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 190 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
191 | return 0; |
192 | } | |
193 | ||
194 | if (mtype > dctx->mdmax) { | |
195 | const EVP_MD **mdevp; | |
196 | uint8_t *mdord; | |
a230b26e | 197 | int n = ((int)mtype) + 1; |
919ba009 VD |
198 | |
199 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
200 | if (mdevp == NULL) { | |
201 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
202 | return -1; | |
203 | } | |
204 | dctx->mdevp = mdevp; | |
205 | ||
206 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
207 | if (mdord == NULL) { | |
208 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
209 | return -1; | |
210 | } | |
211 | dctx->mdord = mdord; | |
212 | ||
213 | /* Zero-fill any gaps */ | |
a230b26e | 214 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
215 | mdevp[i] = NULL; |
216 | mdord[i] = 0; | |
217 | } | |
218 | ||
219 | dctx->mdmax = mtype; | |
220 | } | |
221 | ||
222 | dctx->mdevp[mtype] = md; | |
223 | /* Coerce ordinal of disabled matching types to 0 */ | |
224 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
225 | ||
226 | return 1; | |
227 | } | |
228 | ||
b9aec69a | 229 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
230 | { |
231 | if (mtype > dane->dctx->mdmax) | |
232 | return NULL; | |
233 | return dane->dctx->mdevp[mtype]; | |
234 | } | |
235 | ||
a230b26e EK |
236 | static int dane_tlsa_add(SSL_DANE *dane, |
237 | uint8_t usage, | |
238 | uint8_t selector, | |
239 | uint8_t mtype, unsigned char *data, size_t dlen) | |
919ba009 VD |
240 | { |
241 | danetls_record *t; | |
242 | const EVP_MD *md = NULL; | |
243 | int ilen = (int)dlen; | |
244 | int i; | |
9f6b22b8 | 245 | int num; |
919ba009 VD |
246 | |
247 | if (dane->trecs == NULL) { | |
248 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
249 | return -1; | |
250 | } | |
251 | ||
252 | if (ilen < 0 || dlen != (size_t)ilen) { | |
253 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
254 | return 0; | |
255 | } | |
256 | ||
257 | if (usage > DANETLS_USAGE_LAST) { | |
258 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
259 | return 0; | |
260 | } | |
261 | ||
262 | if (selector > DANETLS_SELECTOR_LAST) { | |
263 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
264 | return 0; | |
265 | } | |
266 | ||
267 | if (mtype != DANETLS_MATCHING_FULL) { | |
268 | md = tlsa_md_get(dane, mtype); | |
269 | if (md == NULL) { | |
270 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
271 | return 0; | |
272 | } | |
273 | } | |
274 | ||
275 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
276 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
277 | return 0; | |
278 | } | |
279 | if (!data) { | |
280 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
281 | return 0; | |
282 | } | |
283 | ||
284 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
285 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
286 | return -1; | |
287 | } | |
288 | ||
289 | t->usage = usage; | |
290 | t->selector = selector; | |
291 | t->mtype = mtype; | |
348240c6 | 292 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
293 | if (t->data == NULL) { |
294 | tlsa_free(t); | |
295 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
296 | return -1; | |
297 | } | |
348240c6 MC |
298 | memcpy(t->data, data, dlen); |
299 | t->dlen = dlen; | |
919ba009 VD |
300 | |
301 | /* Validate and cache full certificate or public key */ | |
302 | if (mtype == DANETLS_MATCHING_FULL) { | |
303 | const unsigned char *p = data; | |
304 | X509 *cert = NULL; | |
305 | EVP_PKEY *pkey = NULL; | |
306 | ||
307 | switch (selector) { | |
308 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 309 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
310 | dlen != (size_t)(p - data)) { |
311 | tlsa_free(t); | |
312 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
313 | return 0; | |
314 | } | |
315 | if (X509_get0_pubkey(cert) == NULL) { | |
316 | tlsa_free(t); | |
317 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
318 | return 0; | |
319 | } | |
320 | ||
321 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
322 | X509_free(cert); | |
323 | break; | |
324 | } | |
325 | ||
326 | /* | |
327 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
328 | * records that contain full certificates of trust-anchors that are | |
329 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
330 | * the chain with untrusted Full(0) certificates from DNS, in case | |
331 | * they are missing from the chain. | |
332 | */ | |
333 | if ((dane->certs == NULL && | |
334 | (dane->certs = sk_X509_new_null()) == NULL) || | |
335 | !sk_X509_push(dane->certs, cert)) { | |
336 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
337 | X509_free(cert); | |
338 | tlsa_free(t); | |
339 | return -1; | |
340 | } | |
341 | break; | |
342 | ||
343 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 344 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
345 | dlen != (size_t)(p - data)) { |
346 | tlsa_free(t); | |
347 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
348 | return 0; | |
349 | } | |
350 | ||
351 | /* | |
352 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
353 | * records that contain full bare keys of trust-anchors that are | |
354 | * not present in the wire chain. | |
355 | */ | |
356 | if (usage == DANETLS_USAGE_DANE_TA) | |
357 | t->spki = pkey; | |
358 | else | |
359 | EVP_PKEY_free(pkey); | |
360 | break; | |
361 | } | |
362 | } | |
363 | ||
364 | /*- | |
365 | * Find the right insertion point for the new record. | |
366 | * | |
367 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
368 | * they can be processed first, as they require no chain building, and no | |
369 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
370 | * largest, this is accomplished via descending sort by "usage". | |
371 | * | |
372 | * We also sort in descending order by matching ordinal to simplify | |
373 | * the implementation of digest agility in the verification code. | |
374 | * | |
375 | * The choice of order for the selector is not significant, so we | |
376 | * use the same descending order for consistency. | |
377 | */ | |
9f6b22b8 VD |
378 | num = sk_danetls_record_num(dane->trecs); |
379 | for (i = 0; i < num; ++i) { | |
919ba009 | 380 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 381 | |
919ba009 VD |
382 | if (rec->usage > usage) |
383 | continue; | |
384 | if (rec->usage < usage) | |
385 | break; | |
386 | if (rec->selector > selector) | |
387 | continue; | |
388 | if (rec->selector < selector) | |
389 | break; | |
390 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
391 | continue; | |
392 | break; | |
393 | } | |
394 | ||
395 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
396 | tlsa_free(t); | |
397 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
398 | return -1; | |
399 | } | |
400 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
401 | ||
402 | return 1; | |
403 | } | |
404 | ||
c8feba72 BK |
405 | /* |
406 | * Return 0 if there is only one version configured and it was disabled | |
407 | * at configure time. Return 1 otherwise. | |
408 | */ | |
409 | static int ssl_check_allowed_versions(int min_version, int max_version) | |
410 | { | |
411 | int minisdtls = 0, maxisdtls = 0; | |
412 | ||
413 | /* Figure out if we're doing DTLS versions or TLS versions */ | |
414 | if (min_version == DTLS1_BAD_VER | |
415 | || min_version >> 8 == DTLS1_VERSION_MAJOR) | |
416 | minisdtls = 1; | |
417 | if (max_version == DTLS1_BAD_VER | |
418 | || max_version >> 8 == DTLS1_VERSION_MAJOR) | |
419 | maxisdtls = 1; | |
420 | /* A wildcard version of 0 could be DTLS or TLS. */ | |
421 | if ((minisdtls && !maxisdtls && max_version != 0) | |
422 | || (maxisdtls && !minisdtls && min_version != 0)) { | |
423 | /* Mixing DTLS and TLS versions will lead to sadness; deny it. */ | |
424 | return 0; | |
425 | } | |
426 | ||
427 | if (minisdtls || maxisdtls) { | |
428 | /* Do DTLS version checks. */ | |
429 | if (min_version == 0) | |
430 | /* Ignore DTLS1_BAD_VER */ | |
431 | min_version = DTLS1_VERSION; | |
432 | if (max_version == 0) | |
433 | max_version = DTLS1_2_VERSION; | |
434 | #ifdef OPENSSL_NO_DTLS1_2 | |
435 | if (max_version == DTLS1_2_VERSION) | |
436 | max_version = DTLS1_VERSION; | |
437 | #endif | |
438 | #ifdef OPENSSL_NO_DTLS1 | |
439 | if (min_version == DTLS1_VERSION) | |
440 | min_version = DTLS1_2_VERSION; | |
441 | #endif | |
79b4444d DMSP |
442 | /* Done massaging versions; do the check. */ |
443 | if (0 | |
c8feba72 BK |
444 | #ifdef OPENSSL_NO_DTLS1 |
445 | || (DTLS_VERSION_GE(min_version, DTLS1_VERSION) | |
446 | && DTLS_VERSION_GE(DTLS1_VERSION, max_version)) | |
447 | #endif | |
448 | #ifdef OPENSSL_NO_DTLS1_2 | |
449 | || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION) | |
450 | && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version)) | |
451 | #endif | |
452 | ) | |
453 | return 0; | |
454 | } else { | |
455 | /* Regular TLS version checks. */ | |
79b4444d DMSP |
456 | if (min_version == 0) |
457 | min_version = SSL3_VERSION; | |
458 | if (max_version == 0) | |
459 | max_version = TLS1_3_VERSION; | |
c8feba72 | 460 | #ifdef OPENSSL_NO_TLS1_3 |
79b4444d DMSP |
461 | if (max_version == TLS1_3_VERSION) |
462 | max_version = TLS1_2_VERSION; | |
c8feba72 BK |
463 | #endif |
464 | #ifdef OPENSSL_NO_TLS1_2 | |
79b4444d DMSP |
465 | if (max_version == TLS1_2_VERSION) |
466 | max_version = TLS1_1_VERSION; | |
c8feba72 BK |
467 | #endif |
468 | #ifdef OPENSSL_NO_TLS1_1 | |
79b4444d DMSP |
469 | if (max_version == TLS1_1_VERSION) |
470 | max_version = TLS1_VERSION; | |
c8feba72 BK |
471 | #endif |
472 | #ifdef OPENSSL_NO_TLS1 | |
79b4444d DMSP |
473 | if (max_version == TLS1_VERSION) |
474 | max_version = SSL3_VERSION; | |
c8feba72 BK |
475 | #endif |
476 | #ifdef OPENSSL_NO_SSL3 | |
79b4444d DMSP |
477 | if (min_version == SSL3_VERSION) |
478 | min_version = TLS1_VERSION; | |
c8feba72 BK |
479 | #endif |
480 | #ifdef OPENSSL_NO_TLS1 | |
79b4444d DMSP |
481 | if (min_version == TLS1_VERSION) |
482 | min_version = TLS1_1_VERSION; | |
c8feba72 BK |
483 | #endif |
484 | #ifdef OPENSSL_NO_TLS1_1 | |
79b4444d DMSP |
485 | if (min_version == TLS1_1_VERSION) |
486 | min_version = TLS1_2_VERSION; | |
c8feba72 BK |
487 | #endif |
488 | #ifdef OPENSSL_NO_TLS1_2 | |
79b4444d DMSP |
489 | if (min_version == TLS1_2_VERSION) |
490 | min_version = TLS1_3_VERSION; | |
c8feba72 | 491 | #endif |
79b4444d DMSP |
492 | /* Done massaging versions; do the check. */ |
493 | if (0 | |
c8feba72 BK |
494 | #ifdef OPENSSL_NO_SSL3 |
495 | || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version) | |
496 | #endif | |
497 | #ifdef OPENSSL_NO_TLS1 | |
498 | || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version) | |
499 | #endif | |
500 | #ifdef OPENSSL_NO_TLS1_1 | |
501 | || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version) | |
502 | #endif | |
503 | #ifdef OPENSSL_NO_TLS1_2 | |
504 | || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version) | |
505 | #endif | |
506 | #ifdef OPENSSL_NO_TLS1_3 | |
507 | || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version) | |
508 | #endif | |
509 | ) | |
510 | return 0; | |
511 | } | |
512 | return 1; | |
513 | } | |
514 | ||
d31fb0b5 RS |
515 | static void clear_ciphers(SSL *s) |
516 | { | |
517 | /* clear the current cipher */ | |
518 | ssl_clear_cipher_ctx(s); | |
519 | ssl_clear_hash_ctx(&s->read_hash); | |
520 | ssl_clear_hash_ctx(&s->write_hash); | |
521 | } | |
522 | ||
4f43d0e7 | 523 | int SSL_clear(SSL *s) |
0f113f3e | 524 | { |
0f113f3e MC |
525 | if (s->method == NULL) { |
526 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
a89325e4 | 527 | return 0; |
0f113f3e | 528 | } |
d02b48c6 | 529 | |
0f113f3e MC |
530 | if (ssl_clear_bad_session(s)) { |
531 | SSL_SESSION_free(s->session); | |
532 | s->session = NULL; | |
533 | } | |
9368f865 MC |
534 | SSL_SESSION_free(s->psksession); |
535 | s->psksession = NULL; | |
add8d0e9 MC |
536 | OPENSSL_free(s->psksession_id); |
537 | s->psksession_id = NULL; | |
538 | s->psksession_id_len = 0; | |
d62bfb39 | 539 | |
0f113f3e MC |
540 | s->error = 0; |
541 | s->hit = 0; | |
542 | s->shutdown = 0; | |
d02b48c6 | 543 | |
0f113f3e MC |
544 | if (s->renegotiate) { |
545 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
546 | return 0; | |
547 | } | |
d02b48c6 | 548 | |
fe3a3291 | 549 | ossl_statem_clear(s); |
413c4f45 | 550 | |
0f113f3e MC |
551 | s->version = s->method->version; |
552 | s->client_version = s->version; | |
553 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 554 | |
25aaa98a RS |
555 | BUF_MEM_free(s->init_buf); |
556 | s->init_buf = NULL; | |
d31fb0b5 | 557 | clear_ciphers(s); |
0f113f3e | 558 | s->first_packet = 0; |
d02b48c6 | 559 | |
44c04a2e MC |
560 | s->key_update = SSL_KEY_UPDATE_NONE; |
561 | ||
919ba009 VD |
562 | /* Reset DANE verification result state */ |
563 | s->dane.mdpth = -1; | |
564 | s->dane.pdpth = -1; | |
565 | X509_free(s->dane.mcert); | |
566 | s->dane.mcert = NULL; | |
567 | s->dane.mtlsa = NULL; | |
568 | ||
569 | /* Clear the verification result peername */ | |
570 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
571 | ||
0f113f3e MC |
572 | /* |
573 | * Check to see if we were changed into a different method, if so, revert | |
24252537 | 574 | * back. |
0f113f3e | 575 | */ |
24252537 | 576 | if (s->method != s->ctx->method) { |
0f113f3e MC |
577 | s->method->ssl_free(s); |
578 | s->method = s->ctx->method; | |
579 | if (!s->method->ssl_new(s)) | |
a89325e4 | 580 | return 0; |
b77f3ed1 MC |
581 | } else { |
582 | if (!s->method->ssl_clear(s)) | |
583 | return 0; | |
584 | } | |
33d23b87 | 585 | |
af9752e5 | 586 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 587 | |
a89325e4 | 588 | return 1; |
0f113f3e | 589 | } |
d02b48c6 | 590 | |
4f43d0e7 | 591 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
592 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
593 | { | |
594 | STACK_OF(SSL_CIPHER) *sk; | |
595 | ||
596 | ctx->method = meth; | |
597 | ||
598 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
599 | &(ctx->cipher_list_by_id), | |
600 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
601 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 602 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
26a7d938 | 603 | return 0; |
0f113f3e | 604 | } |
208fb891 | 605 | return 1; |
0f113f3e | 606 | } |
d02b48c6 | 607 | |
4f43d0e7 | 608 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
609 | { |
610 | SSL *s; | |
611 | ||
612 | if (ctx == NULL) { | |
613 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
26a7d938 | 614 | return NULL; |
0f113f3e MC |
615 | } |
616 | if (ctx->method == NULL) { | |
617 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
26a7d938 | 618 | return NULL; |
0f113f3e MC |
619 | } |
620 | ||
b51bce94 | 621 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
622 | if (s == NULL) |
623 | goto err; | |
0f113f3e | 624 | |
e6b10c34 | 625 | s->references = 1; |
16203f7b | 626 | s->lock = CRYPTO_THREAD_lock_new(); |
e6b10c34 BE |
627 | if (s->lock == NULL) { |
628 | OPENSSL_free(s); | |
629 | s = NULL; | |
ae3947de | 630 | goto err; |
e6b10c34 | 631 | } |
ae3947de RS |
632 | |
633 | /* | |
634 | * If not using the standard RAND (say for fuzzing), then don't use a | |
635 | * chained DRBG. | |
636 | */ | |
637 | if (RAND_get_rand_method() == RAND_OpenSSL()) { | |
c16de9d8 DMSP |
638 | s->drbg = |
639 | RAND_DRBG_new(RAND_DRBG_NID, RAND_DRBG_FLAG_CTR_USE_DF, | |
640 | RAND_DRBG_get0_global()); | |
0b14a5b7 | 641 | if (s->drbg == NULL |
c16de9d8 DMSP |
642 | || RAND_DRBG_instantiate(s->drbg, |
643 | (const unsigned char *) SSL_version_str, | |
e6b10c34 | 644 | sizeof(SSL_version_str) - 1) == 0) |
ae3947de | 645 | goto err; |
16203f7b AG |
646 | } |
647 | ||
c036e210 | 648 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 649 | |
0f113f3e | 650 | s->options = ctx->options; |
5ae4ceb9 | 651 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
652 | s->min_proto_version = ctx->min_proto_version; |
653 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
654 | s->mode = ctx->mode; |
655 | s->max_cert_list = ctx->max_cert_list; | |
3fc8d856 | 656 | s->max_early_data = ctx->max_early_data; |
0f113f3e | 657 | |
2c382349 KR |
658 | /* |
659 | * Earlier library versions used to copy the pointer to the CERT, not | |
660 | * its contents; only when setting new parameters for the per-SSL | |
661 | * copy, ssl_cert_new would be called (and the direct reference to | |
662 | * the per-SSL_CTX settings would be lost, but those still were | |
663 | * indirectly accessed for various purposes, and for that reason they | |
664 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
665 | * SSL_CTX's CERT after having duplicated it once. | |
666 | */ | |
667 | s->cert = ssl_cert_dup(ctx->cert); | |
668 | if (s->cert == NULL) | |
669 | goto err; | |
0f113f3e | 670 | |
52e1d7b1 | 671 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
672 | s->msg_callback = ctx->msg_callback; |
673 | s->msg_callback_arg = ctx->msg_callback_arg; | |
674 | s->verify_mode = ctx->verify_mode; | |
675 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
c649d10d TS |
676 | s->record_padding_cb = ctx->record_padding_cb; |
677 | s->record_padding_arg = ctx->record_padding_arg; | |
678 | s->block_padding = ctx->block_padding; | |
0f113f3e | 679 | s->sid_ctx_length = ctx->sid_ctx_length; |
380a522f MC |
680 | if (!ossl_assert(s->sid_ctx_length <= sizeof s->sid_ctx)) |
681 | goto err; | |
0f113f3e MC |
682 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); |
683 | s->verify_callback = ctx->default_verify_callback; | |
684 | s->generate_session_id = ctx->generate_session_id; | |
685 | ||
686 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 687 | if (s->param == NULL) |
0f113f3e MC |
688 | goto err; |
689 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e MC |
690 | s->quiet_shutdown = ctx->quiet_shutdown; |
691 | s->max_send_fragment = ctx->max_send_fragment; | |
d102d9df MC |
692 | s->split_send_fragment = ctx->split_send_fragment; |
693 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
694 | if (s->max_pipelines > 1) |
695 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
696 | if (ctx->default_read_buf_len > 0) |
697 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 698 | |
16203f7b | 699 | SSL_CTX_up_ref(ctx); |
0f113f3e | 700 | s->ctx = ctx; |
aff8c126 RS |
701 | s->ext.debug_cb = 0; |
702 | s->ext.debug_arg = NULL; | |
703 | s->ext.ticket_expected = 0; | |
704 | s->ext.status_type = ctx->ext.status_type; | |
705 | s->ext.status_expected = 0; | |
706 | s->ext.ocsp.ids = NULL; | |
707 | s->ext.ocsp.exts = NULL; | |
708 | s->ext.ocsp.resp = NULL; | |
709 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 710 | SSL_CTX_up_ref(ctx); |
222da979 | 711 | s->session_ctx = ctx; |
a230b26e | 712 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
713 | if (ctx->ext.ecpointformats) { |
714 | s->ext.ecpointformats = | |
715 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
716 | ctx->ext.ecpointformats_len); | |
717 | if (!s->ext.ecpointformats) | |
0f113f3e | 718 | goto err; |
aff8c126 RS |
719 | s->ext.ecpointformats_len = |
720 | ctx->ext.ecpointformats_len; | |
721 | } | |
722 | if (ctx->ext.supportedgroups) { | |
723 | s->ext.supportedgroups = | |
724 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
9e84a42d | 725 | ctx->ext.supportedgroups_len |
b92d7b62 | 726 | * sizeof(*ctx->ext.supportedgroups)); |
aff8c126 | 727 | if (!s->ext.supportedgroups) |
0f113f3e | 728 | goto err; |
aff8c126 | 729 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 730 | } |
a230b26e EK |
731 | #endif |
732 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 733 | s->ext.npn = NULL; |
a230b26e | 734 | #endif |
6f017a8f | 735 | |
aff8c126 RS |
736 | if (s->ctx->ext.alpn) { |
737 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
738 | if (s->ext.alpn == NULL) | |
0f113f3e | 739 | goto err; |
aff8c126 RS |
740 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
741 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 742 | } |
d02b48c6 | 743 | |
696178ed | 744 | s->verified_chain = NULL; |
0f113f3e | 745 | s->verify_result = X509_V_OK; |
d02b48c6 | 746 | |
a974e64a MC |
747 | s->default_passwd_callback = ctx->default_passwd_callback; |
748 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
749 | ||
0f113f3e | 750 | s->method = ctx->method; |
d02b48c6 | 751 | |
44c04a2e MC |
752 | s->key_update = SSL_KEY_UPDATE_NONE; |
753 | ||
0f113f3e MC |
754 | if (!s->method->ssl_new(s)) |
755 | goto err; | |
d02b48c6 | 756 | |
0f113f3e | 757 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 758 | |
61986d32 | 759 | if (!SSL_clear(s)) |
69f68237 | 760 | goto err; |
58964a49 | 761 | |
25a807bc F |
762 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
763 | goto err; | |
58964a49 | 764 | |
ddac1974 | 765 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
766 | s->psk_client_callback = ctx->psk_client_callback; |
767 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 | 768 | #endif |
f46184bd MC |
769 | s->psk_find_session_cb = ctx->psk_find_session_cb; |
770 | s->psk_use_session_cb = ctx->psk_use_session_cb; | |
ddac1974 | 771 | |
07bbc92c MC |
772 | s->job = NULL; |
773 | ||
ed29e82a RP |
774 | #ifndef OPENSSL_NO_CT |
775 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 776 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
777 | goto err; |
778 | #endif | |
779 | ||
16203f7b | 780 | return s; |
0f113f3e | 781 | err: |
62adbcee | 782 | SSL_free(s); |
0f113f3e | 783 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 784 | return NULL; |
0f113f3e | 785 | } |
d02b48c6 | 786 | |
e417070c RS |
787 | int SSL_is_dtls(const SSL *s) |
788 | { | |
789 | return SSL_IS_DTLS(s) ? 1 : 0; | |
790 | } | |
791 | ||
c5ebfcab | 792 | int SSL_up_ref(SSL *s) |
a18a31e4 | 793 | { |
16203f7b | 794 | int i; |
c5ebfcab | 795 | |
2f545ae4 | 796 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
797 | return 0; |
798 | ||
799 | REF_PRINT_COUNT("SSL", s); | |
800 | REF_ASSERT_ISNT(i < 2); | |
801 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
802 | } |
803 | ||
0f113f3e MC |
804 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
805 | unsigned int sid_ctx_len) | |
806 | { | |
807 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
808 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
809 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
810 | return 0; | |
811 | } | |
812 | ctx->sid_ctx_length = sid_ctx_len; | |
813 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
814 | |
815 | return 1; | |
0f113f3e | 816 | } |
4eb77b26 | 817 | |
0f113f3e MC |
818 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
819 | unsigned int sid_ctx_len) | |
820 | { | |
821 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
822 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
823 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
824 | return 0; | |
825 | } | |
826 | ssl->sid_ctx_length = sid_ctx_len; | |
827 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
828 | |
829 | return 1; | |
0f113f3e | 830 | } |
b4cadc6e | 831 | |
dc644fe2 | 832 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 833 | { |
16203f7b | 834 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 835 | ctx->generate_session_id = cb; |
16203f7b | 836 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
837 | return 1; |
838 | } | |
dc644fe2 GT |
839 | |
840 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 841 | { |
16203f7b | 842 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 843 | ssl->generate_session_id = cb; |
16203f7b | 844 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
845 | return 1; |
846 | } | |
dc644fe2 | 847 | |
f85c9904 | 848 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
849 | unsigned int id_len) |
850 | { | |
851 | /* | |
852 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
69687aa8 | 853 | * we can "construct" a session to give us the desired check - i.e. to |
0f113f3e MC |
854 | * find if there's a session in the hash table that would conflict with |
855 | * any new session built out of this id/id_len and the ssl_version in use | |
856 | * by this SSL. | |
857 | */ | |
858 | SSL_SESSION r, *p; | |
859 | ||
860 | if (id_len > sizeof r.session_id) | |
861 | return 0; | |
862 | ||
863 | r.ssl_version = ssl->version; | |
864 | r.session_id_length = id_len; | |
865 | memcpy(r.session_id, id, id_len); | |
866 | ||
e2bb9b9b TS |
867 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
868 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
869 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
870 | return (p != NULL); |
871 | } | |
dc644fe2 | 872 | |
bb7cd4e3 | 873 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
874 | { |
875 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
876 | } | |
bb7cd4e3 DSH |
877 | |
878 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
879 | { |
880 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
881 | } | |
926a56bf | 882 | |
bb7cd4e3 | 883 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
884 | { |
885 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
886 | } | |
bb7cd4e3 DSH |
887 | |
888 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
889 | { |
890 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
891 | } | |
bb7cd4e3 | 892 | |
919ba009 VD |
893 | int SSL_set1_host(SSL *s, const char *hostname) |
894 | { | |
895 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
896 | } | |
897 | ||
898 | int SSL_add1_host(SSL *s, const char *hostname) | |
899 | { | |
900 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
901 | } | |
902 | ||
903 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
904 | { | |
905 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
906 | } | |
907 | ||
4588cb44 | 908 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
909 | { |
910 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
911 | } | |
912 | ||
913 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
914 | { | |
915 | return dane_ctx_enable(&ctx->dane); | |
916 | } | |
917 | ||
5ae4ceb9 VD |
918 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
919 | { | |
920 | unsigned long orig = ctx->dane.flags; | |
921 | ||
922 | ctx->dane.flags |= flags; | |
923 | return orig; | |
924 | } | |
925 | ||
926 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
927 | { | |
928 | unsigned long orig = ctx->dane.flags; | |
929 | ||
930 | ctx->dane.flags &= ~flags; | |
931 | return orig; | |
932 | } | |
933 | ||
919ba009 VD |
934 | int SSL_dane_enable(SSL *s, const char *basedomain) |
935 | { | |
b9aec69a | 936 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
937 | |
938 | if (s->ctx->dane.mdmax == 0) { | |
939 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
940 | return 0; | |
941 | } | |
942 | if (dane->trecs != NULL) { | |
943 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
944 | return 0; | |
945 | } | |
946 | ||
8d887efa VD |
947 | /* |
948 | * Default SNI name. This rejects empty names, while set1_host below | |
949 | * accepts them and disables host name checks. To avoid side-effects with | |
950 | * invalid input, set the SNI name first. | |
951 | */ | |
aff8c126 | 952 | if (s->ext.hostname == NULL) { |
dccd20d1 | 953 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 954 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 955 | return -1; |
8d887efa VD |
956 | } |
957 | } | |
958 | ||
919ba009 VD |
959 | /* Primary RFC6125 reference identifier */ |
960 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
961 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
962 | return -1; | |
963 | } | |
964 | ||
919ba009 VD |
965 | dane->mdpth = -1; |
966 | dane->pdpth = -1; | |
967 | dane->dctx = &s->ctx->dane; | |
968 | dane->trecs = sk_danetls_record_new_null(); | |
969 | ||
970 | if (dane->trecs == NULL) { | |
971 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
972 | return -1; | |
973 | } | |
974 | return 1; | |
975 | } | |
976 | ||
5ae4ceb9 VD |
977 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
978 | { | |
979 | unsigned long orig = ssl->dane.flags; | |
980 | ||
981 | ssl->dane.flags |= flags; | |
982 | return orig; | |
983 | } | |
984 | ||
985 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
986 | { | |
987 | unsigned long orig = ssl->dane.flags; | |
988 | ||
989 | ssl->dane.flags &= ~flags; | |
990 | return orig; | |
991 | } | |
992 | ||
919ba009 VD |
993 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
994 | { | |
b9aec69a | 995 | SSL_DANE *dane = &s->dane; |
919ba009 | 996 | |
c0a445a9 | 997 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
998 | return -1; |
999 | if (dane->mtlsa) { | |
1000 | if (mcert) | |
1001 | *mcert = dane->mcert; | |
1002 | if (mspki) | |
1003 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
1004 | } | |
1005 | return dane->mdpth; | |
1006 | } | |
1007 | ||
1008 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
1009 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
1010 | { | |
b9aec69a | 1011 | SSL_DANE *dane = &s->dane; |
919ba009 | 1012 | |
c0a445a9 | 1013 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
1014 | return -1; |
1015 | if (dane->mtlsa) { | |
1016 | if (usage) | |
1017 | *usage = dane->mtlsa->usage; | |
1018 | if (selector) | |
1019 | *selector = dane->mtlsa->selector; | |
1020 | if (mtype) | |
1021 | *mtype = dane->mtlsa->mtype; | |
1022 | if (data) | |
1023 | *data = dane->mtlsa->data; | |
1024 | if (dlen) | |
1025 | *dlen = dane->mtlsa->dlen; | |
1026 | } | |
1027 | return dane->mdpth; | |
1028 | } | |
1029 | ||
b9aec69a | 1030 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
1031 | { |
1032 | return &s->dane; | |
1033 | } | |
1034 | ||
1035 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
1036 | uint8_t mtype, unsigned char *data, size_t dlen) | |
1037 | { | |
1038 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
1039 | } | |
1040 | ||
a230b26e EK |
1041 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
1042 | uint8_t ord) | |
919ba009 VD |
1043 | { |
1044 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
1045 | } | |
1046 | ||
ccf11751 | 1047 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
1048 | { |
1049 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
1050 | } | |
ccf11751 DSH |
1051 | |
1052 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
1053 | { |
1054 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
1055 | } | |
ccf11751 | 1056 | |
7af31968 | 1057 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
1058 | { |
1059 | return ctx->param; | |
1060 | } | |
7af31968 DSH |
1061 | |
1062 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
1063 | { |
1064 | return ssl->param; | |
1065 | } | |
7af31968 | 1066 | |
a5ee80b9 | 1067 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
1068 | { |
1069 | ssl_cert_clear_certs(s->cert); | |
1070 | } | |
a5ee80b9 | 1071 | |
4f43d0e7 | 1072 | void SSL_free(SSL *s) |
0f113f3e MC |
1073 | { |
1074 | int i; | |
58964a49 | 1075 | |
0f113f3e MC |
1076 | if (s == NULL) |
1077 | return; | |
e03ddfae | 1078 | |
2f545ae4 | 1079 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 1080 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
1081 | if (i > 0) |
1082 | return; | |
f3f1cf84 | 1083 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 1084 | |
222561fe | 1085 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 1086 | dane_final(&s->dane); |
0f113f3e MC |
1087 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
1088 | ||
b77f3ed1 | 1089 | /* Ignore return value */ |
2e7dc7cd MC |
1090 | ssl_free_wbio_buffer(s); |
1091 | ||
65e2d672 | 1092 | BIO_free_all(s->wbio); |
325cfa85 | 1093 | BIO_free_all(s->rbio); |
0f113f3e | 1094 | |
25aaa98a | 1095 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
1096 | |
1097 | /* add extra stuff */ | |
25aaa98a RS |
1098 | sk_SSL_CIPHER_free(s->cipher_list); |
1099 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
0f113f3e MC |
1100 | |
1101 | /* Make the next call work :-) */ | |
1102 | if (s->session != NULL) { | |
1103 | ssl_clear_bad_session(s); | |
1104 | SSL_SESSION_free(s->session); | |
1105 | } | |
9368f865 | 1106 | SSL_SESSION_free(s->psksession); |
add8d0e9 | 1107 | OPENSSL_free(s->psksession_id); |
0f113f3e | 1108 | |
d31fb0b5 | 1109 | clear_ciphers(s); |
d02b48c6 | 1110 | |
e0e920b1 | 1111 | ssl_cert_free(s->cert); |
0f113f3e | 1112 | /* Free up if allocated */ |
d02b48c6 | 1113 | |
aff8c126 | 1114 | OPENSSL_free(s->ext.hostname); |
222da979 | 1115 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1116 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
1117 | OPENSSL_free(s->ext.ecpointformats); |
1118 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 1119 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1120 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1121 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1122 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1123 | #endif |
ed29e82a RP |
1124 | #ifndef OPENSSL_NO_CT |
1125 | SCT_LIST_free(s->scts); | |
aff8c126 | 1126 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1127 | #endif |
aff8c126 RS |
1128 | OPENSSL_free(s->ext.ocsp.resp); |
1129 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 1130 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1131 | OPENSSL_free(s->clienthello); |
0f113f3e | 1132 | |
fa7c2637 | 1133 | sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free); |
0f113f3e | 1134 | |
696178ed DSH |
1135 | sk_X509_pop_free(s->verified_chain, X509_free); |
1136 | ||
0f113f3e MC |
1137 | if (s->method != NULL) |
1138 | s->method->ssl_free(s); | |
1139 | ||
f161995e | 1140 | RECORD_LAYER_release(&s->rlayer); |
33d23b87 | 1141 | |
e0e920b1 | 1142 | SSL_CTX_free(s->ctx); |
7c3908dd | 1143 | |
ff75a257 MC |
1144 | ASYNC_WAIT_CTX_free(s->waitctx); |
1145 | ||
e481f9b9 | 1146 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1147 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1148 | #endif |
1149 | ||
e783bae2 | 1150 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1151 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1152 | #endif |
1153 | ||
ae3947de | 1154 | RAND_DRBG_free(s->drbg); |
16203f7b AG |
1155 | CRYPTO_THREAD_lock_free(s->lock); |
1156 | ||
0f113f3e MC |
1157 | OPENSSL_free(s); |
1158 | } | |
1159 | ||
65e2d672 | 1160 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1161 | { |
65e2d672 | 1162 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1163 | s->rbio = rbio; |
1164 | } | |
1165 | ||
65e2d672 | 1166 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1167 | { |
1168 | /* | |
1169 | * If the output buffering BIO is still in place, remove it | |
1170 | */ | |
2e7dc7cd MC |
1171 | if (s->bbio != NULL) |
1172 | s->wbio = BIO_pop(s->wbio); | |
1173 | ||
65e2d672 | 1174 | BIO_free_all(s->wbio); |
0f113f3e | 1175 | s->wbio = wbio; |
2e7dc7cd MC |
1176 | |
1177 | /* Re-attach |bbio| to the new |wbio|. */ | |
1178 | if (s->bbio != NULL) | |
1179 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1180 | } |
d02b48c6 | 1181 | |
3ffbe008 MC |
1182 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1183 | { | |
65e2d672 MC |
1184 | /* |
1185 | * For historical reasons, this function has many different cases in | |
1186 | * ownership handling. | |
1187 | */ | |
1188 | ||
1189 | /* If nothing has changed, do nothing */ | |
1190 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1191 | return; | |
1192 | ||
1193 | /* | |
1194 | * If the two arguments are equal then one fewer reference is granted by the | |
1195 | * caller than we want to take | |
1196 | */ | |
1197 | if (rbio != NULL && rbio == wbio) | |
1198 | BIO_up_ref(rbio); | |
1199 | ||
1200 | /* | |
1201 | * If only the wbio is changed only adopt one reference. | |
1202 | */ | |
1203 | if (rbio == SSL_get_rbio(s)) { | |
1204 | SSL_set0_wbio(s, wbio); | |
1205 | return; | |
1206 | } | |
1207 | /* | |
1208 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1209 | * changed AND the rbio and wbio were originally different, then we only | |
1210 | * adopt one reference. | |
1211 | */ | |
1212 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1213 | SSL_set0_rbio(s, rbio); | |
1214 | return; | |
1215 | } | |
1216 | ||
1217 | /* Otherwise, adopt both references. */ | |
1218 | SSL_set0_rbio(s, rbio); | |
1219 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1220 | } |
1221 | ||
0821bcd4 | 1222 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1223 | { |
2e7dc7cd | 1224 | return s->rbio; |
0f113f3e | 1225 | } |
d02b48c6 | 1226 | |
0821bcd4 | 1227 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1228 | { |
2e7dc7cd MC |
1229 | if (s->bbio != NULL) { |
1230 | /* | |
1231 | * If |bbio| is active, the true caller-configured BIO is its | |
1232 | * |next_bio|. | |
1233 | */ | |
1234 | return BIO_next(s->bbio); | |
1235 | } | |
1236 | return s->wbio; | |
0f113f3e | 1237 | } |
d02b48c6 | 1238 | |
0821bcd4 | 1239 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1240 | { |
2e7dc7cd | 1241 | return SSL_get_rfd(s); |
0f113f3e | 1242 | } |
24cbf3ef | 1243 | |
0821bcd4 | 1244 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1245 | { |
1246 | int ret = -1; | |
1247 | BIO *b, *r; | |
1248 | ||
1249 | b = SSL_get_rbio(s); | |
1250 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1251 | if (r != NULL) | |
1252 | BIO_get_fd(r, &ret); | |
26a7d938 | 1253 | return ret; |
0f113f3e | 1254 | } |
d02b48c6 | 1255 | |
0821bcd4 | 1256 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1257 | { |
1258 | int ret = -1; | |
1259 | BIO *b, *r; | |
1260 | ||
1261 | b = SSL_get_wbio(s); | |
1262 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1263 | if (r != NULL) | |
1264 | BIO_get_fd(r, &ret); | |
26a7d938 | 1265 | return ret; |
0f113f3e | 1266 | } |
24cbf3ef | 1267 | |
bc36ee62 | 1268 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1269 | int SSL_set_fd(SSL *s, int fd) |
1270 | { | |
1271 | int ret = 0; | |
1272 | BIO *bio = NULL; | |
1273 | ||
1274 | bio = BIO_new(BIO_s_socket()); | |
1275 | ||
1276 | if (bio == NULL) { | |
1277 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1278 | goto err; | |
1279 | } | |
1280 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1281 | SSL_set_bio(s, bio, bio); | |
1282 | ret = 1; | |
1283 | err: | |
26a7d938 | 1284 | return ret; |
0f113f3e | 1285 | } |
d02b48c6 | 1286 | |
0f113f3e MC |
1287 | int SSL_set_wfd(SSL *s, int fd) |
1288 | { | |
2e7dc7cd | 1289 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1290 | |
2e7dc7cd MC |
1291 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1292 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1293 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1294 | |
1295 | if (bio == NULL) { | |
1296 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1297 | return 0; |
0f113f3e MC |
1298 | } |
1299 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1300 | SSL_set0_wbio(s, bio); |
2e7dc7cd | 1301 | } else { |
65e2d672 MC |
1302 | BIO_up_ref(rbio); |
1303 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1304 | } |
1305 | return 1; | |
0f113f3e MC |
1306 | } |
1307 | ||
1308 | int SSL_set_rfd(SSL *s, int fd) | |
1309 | { | |
2e7dc7cd | 1310 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1311 | |
2e7dc7cd MC |
1312 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1313 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1314 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1315 | |
1316 | if (bio == NULL) { | |
1317 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1318 | return 0; |
0f113f3e MC |
1319 | } |
1320 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1321 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1322 | } else { |
65e2d672 MC |
1323 | BIO_up_ref(wbio); |
1324 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1325 | } |
1326 | ||
1327 | return 1; | |
0f113f3e MC |
1328 | } |
1329 | #endif | |
ca03109c BM |
1330 | |
1331 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1332 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1333 | { |
1334 | size_t ret = 0; | |
1335 | ||
1336 | if (s->s3 != NULL) { | |
1337 | ret = s->s3->tmp.finish_md_len; | |
1338 | if (count > ret) | |
1339 | count = ret; | |
1340 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1341 | } | |
1342 | return ret; | |
1343 | } | |
ca03109c BM |
1344 | |
1345 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1346 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1347 | { |
1348 | size_t ret = 0; | |
ca03109c | 1349 | |
0f113f3e MC |
1350 | if (s->s3 != NULL) { |
1351 | ret = s->s3->tmp.peer_finish_md_len; | |
1352 | if (count > ret) | |
1353 | count = ret; | |
1354 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1355 | } | |
1356 | return ret; | |
1357 | } | |
ca03109c | 1358 | |
0821bcd4 | 1359 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e | 1360 | { |
26a7d938 | 1361 | return s->verify_mode; |
0f113f3e | 1362 | } |
d02b48c6 | 1363 | |
0821bcd4 | 1364 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1365 | { |
1366 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1367 | } | |
7f89714e | 1368 | |
0f113f3e | 1369 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
26a7d938 | 1370 | return s->verify_callback; |
0f113f3e | 1371 | } |
d02b48c6 | 1372 | |
0821bcd4 | 1373 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e | 1374 | { |
26a7d938 | 1375 | return ctx->verify_mode; |
0f113f3e | 1376 | } |
d02b48c6 | 1377 | |
0821bcd4 | 1378 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1379 | { |
1380 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1381 | } | |
1382 | ||
1383 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
26a7d938 | 1384 | return ctx->default_verify_callback; |
0f113f3e MC |
1385 | } |
1386 | ||
1387 | void SSL_set_verify(SSL *s, int mode, | |
1388 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1389 | { | |
1390 | s->verify_mode = mode; | |
1391 | if (callback != NULL) | |
1392 | s->verify_callback = callback; | |
1393 | } | |
1394 | ||
1395 | void SSL_set_verify_depth(SSL *s, int depth) | |
1396 | { | |
1397 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1398 | } | |
1399 | ||
1400 | void SSL_set_read_ahead(SSL *s, int yes) | |
1401 | { | |
52e1d7b1 | 1402 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1403 | } |
d02b48c6 | 1404 | |
0821bcd4 | 1405 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1406 | { |
52e1d7b1 | 1407 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1408 | } |
d02b48c6 | 1409 | |
0821bcd4 | 1410 | int SSL_pending(const SSL *s) |
0f113f3e | 1411 | { |
8b0e934a MC |
1412 | size_t pending = s->method->ssl_pending(s); |
1413 | ||
0f113f3e MC |
1414 | /* |
1415 | * SSL_pending cannot work properly if read-ahead is enabled | |
1416 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1417 | * impossible to fix since SSL_pending cannot report errors that may be | |
1418 | * observed while scanning the new data. (Note that SSL_pending() is | |
1419 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1420 | * |
1421 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1422 | * we just return INT_MAX. | |
0f113f3e | 1423 | */ |
348240c6 | 1424 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1425 | } |
d02b48c6 | 1426 | |
49580f25 MC |
1427 | int SSL_has_pending(const SSL *s) |
1428 | { | |
1429 | /* | |
1430 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1431 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1432 | * bytes available). Unlike SSL_pending() this will take into account | |
1433 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1434 | * data. That data may not result in any application data, or we may fail | |
1435 | * to parse the records for some reason. | |
1436 | */ | |
b8c49611 | 1437 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1438 | return 1; |
1439 | ||
1440 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1441 | } | |
1442 | ||
0821bcd4 | 1443 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1444 | { |
1445 | X509 *r; | |
d02b48c6 | 1446 | |
0f113f3e MC |
1447 | if ((s == NULL) || (s->session == NULL)) |
1448 | r = NULL; | |
1449 | else | |
1450 | r = s->session->peer; | |
d02b48c6 | 1451 | |
0f113f3e | 1452 | if (r == NULL) |
26a7d938 | 1453 | return r; |
d02b48c6 | 1454 | |
05f0fb9f | 1455 | X509_up_ref(r); |
0f113f3e | 1456 | |
26a7d938 | 1457 | return r; |
0f113f3e | 1458 | } |
d02b48c6 | 1459 | |
0821bcd4 | 1460 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1461 | { |
1462 | STACK_OF(X509) *r; | |
1463 | ||
c34b0f99 | 1464 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1465 | r = NULL; |
1466 | else | |
c34b0f99 | 1467 | r = s->session->peer_chain; |
0f113f3e MC |
1468 | |
1469 | /* | |
1470 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1471 | * we are a server, it does not. | |
1472 | */ | |
1473 | ||
26a7d938 | 1474 | return r; |
0f113f3e MC |
1475 | } |
1476 | ||
1477 | /* | |
1478 | * Now in theory, since the calling process own 't' it should be safe to | |
1479 | * modify. We need to be able to read f without being hassled | |
1480 | */ | |
17dd65e6 | 1481 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1482 | { |
16203f7b | 1483 | int i; |
0f113f3e | 1484 | /* Do we need to to SSL locking? */ |
61986d32 | 1485 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1486 | return 0; |
69f68237 | 1487 | } |
0f113f3e MC |
1488 | |
1489 | /* | |
87d9cafa | 1490 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1491 | */ |
1492 | if (t->method != f->method) { | |
919ba009 VD |
1493 | t->method->ssl_free(t); |
1494 | t->method = f->method; | |
1495 | if (t->method->ssl_new(t) == 0) | |
1496 | return 0; | |
0f113f3e MC |
1497 | } |
1498 | ||
2f545ae4 | 1499 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1500 | ssl_cert_free(t->cert); |
1501 | t->cert = f->cert; | |
348240c6 | 1502 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1503 | return 0; |
69f68237 | 1504 | } |
17dd65e6 MC |
1505 | |
1506 | return 1; | |
0f113f3e | 1507 | } |
d02b48c6 | 1508 | |
58964a49 | 1509 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1510 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1511 | { |
a230b26e EK |
1512 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1513 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
26a7d938 | 1514 | return 0; |
0f113f3e MC |
1515 | } |
1516 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1517 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
26a7d938 | 1518 | return 0; |
0f113f3e | 1519 | } |
26a7d938 K |
1520 | return X509_check_private_key |
1521 | (ctx->cert->key->x509, ctx->cert->key->privatekey); | |
0f113f3e | 1522 | } |
d02b48c6 | 1523 | |
58964a49 | 1524 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1525 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1526 | { |
1527 | if (ssl == NULL) { | |
1528 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
26a7d938 | 1529 | return 0; |
0f113f3e | 1530 | } |
0f113f3e MC |
1531 | if (ssl->cert->key->x509 == NULL) { |
1532 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
26a7d938 | 1533 | return 0; |
0f113f3e MC |
1534 | } |
1535 | if (ssl->cert->key->privatekey == NULL) { | |
1536 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
26a7d938 | 1537 | return 0; |
0f113f3e | 1538 | } |
26a7d938 K |
1539 | return X509_check_private_key(ssl->cert->key->x509, |
1540 | ssl->cert->key->privatekey); | |
0f113f3e | 1541 | } |
d02b48c6 | 1542 | |
07bbc92c MC |
1543 | int SSL_waiting_for_async(SSL *s) |
1544 | { | |
e8aa8b6c | 1545 | if (s->job) |
82676094 MC |
1546 | return 1; |
1547 | ||
07bbc92c MC |
1548 | return 0; |
1549 | } | |
1550 | ||
ff75a257 | 1551 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1552 | { |
ff75a257 MC |
1553 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1554 | ||
1555 | if (ctx == NULL) | |
1556 | return 0; | |
1557 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1558 | } | |
f4da39d2 | 1559 | |
ff75a257 MC |
1560 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1561 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1562 | { | |
1563 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1564 | ||
1565 | if (ctx == NULL) | |
1566 | return 0; | |
1567 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1568 | numdelfds); | |
f4da39d2 MC |
1569 | } |
1570 | ||
4f43d0e7 | 1571 | int SSL_accept(SSL *s) |
0f113f3e | 1572 | { |
c4c32155 | 1573 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1574 | /* Not properly initialized yet */ |
1575 | SSL_set_accept_state(s); | |
07bbc92c | 1576 | } |
add2f5ca MC |
1577 | |
1578 | return SSL_do_handshake(s); | |
0f113f3e | 1579 | } |
d02b48c6 | 1580 | |
4f43d0e7 | 1581 | int SSL_connect(SSL *s) |
0f113f3e | 1582 | { |
c4c32155 | 1583 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1584 | /* Not properly initialized yet */ |
1585 | SSL_set_connect_state(s); | |
add2f5ca | 1586 | } |
b31b04d9 | 1587 | |
add2f5ca | 1588 | return SSL_do_handshake(s); |
0f113f3e | 1589 | } |
d02b48c6 | 1590 | |
0821bcd4 | 1591 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e | 1592 | { |
26a7d938 | 1593 | return s->method->get_timeout(); |
0f113f3e MC |
1594 | } |
1595 | ||
7fecbf6f | 1596 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1597 | int (*func) (void *)) |
1598 | { | |
add2f5ca | 1599 | int ret; |
ff75a257 MC |
1600 | if (s->waitctx == NULL) { |
1601 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1602 | if (s->waitctx == NULL) | |
1603 | return -1; | |
1604 | } | |
e8aa8b6c | 1605 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1606 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1607 | case ASYNC_ERR: |
1608 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1609 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1610 | return -1; |
1611 | case ASYNC_PAUSE: | |
1612 | s->rwstate = SSL_ASYNC_PAUSED; | |
1613 | return -1; | |
fc7f190c MC |
1614 | case ASYNC_NO_JOBS: |
1615 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1616 | return -1; | |
add2f5ca MC |
1617 | case ASYNC_FINISH: |
1618 | s->job = NULL; | |
1619 | return ret; | |
1620 | default: | |
1621 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1622 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1623 | /* Shouldn't happen */ |
1624 | return -1; | |
1625 | } | |
1626 | } | |
07bbc92c | 1627 | |
add2f5ca | 1628 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1629 | { |
1630 | struct ssl_async_args *args; | |
1631 | SSL *s; | |
1632 | void *buf; | |
348240c6 | 1633 | size_t num; |
07bbc92c MC |
1634 | |
1635 | args = (struct ssl_async_args *)vargs; | |
1636 | s = args->s; | |
1637 | buf = args->buf; | |
1638 | num = args->num; | |
ec447924 MC |
1639 | switch (args->type) { |
1640 | case READFUNC: | |
7ee8627f | 1641 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1642 | case WRITEFUNC: |
7ee8627f | 1643 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1644 | case OTHERFUNC: |
1645 | return args->f.func_other(s); | |
1646 | } | |
1647 | return -1; | |
07bbc92c MC |
1648 | } |
1649 | ||
4ee7d3f9 | 1650 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1651 | { |
c4c32155 | 1652 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1653 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1654 | return -1; |
1655 | } | |
1656 | ||
1657 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1658 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1659 | return 0; |
0f113f3e | 1660 | } |
07bbc92c | 1661 | |
564547e4 MC |
1662 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1663 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1664 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1665 | return 0; | |
1666 | } | |
564547e4 MC |
1667 | /* |
1668 | * If we are a client and haven't received the ServerHello etc then we | |
1669 | * better do that | |
1670 | */ | |
1671 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1672 | |
e8aa8b6c | 1673 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1674 | struct ssl_async_args args; |
eda75751 | 1675 | int ret; |
add2f5ca MC |
1676 | |
1677 | args.s = s; | |
1678 | args.buf = buf; | |
1679 | args.num = num; | |
ec447924 MC |
1680 | args.type = READFUNC; |
1681 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1682 | |
eda75751 | 1683 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1684 | *readbytes = s->asyncrw; |
eda75751 | 1685 | return ret; |
07bbc92c | 1686 | } else { |
54105ddd | 1687 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1688 | } |
0f113f3e MC |
1689 | } |
1690 | ||
4ee7d3f9 | 1691 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1692 | { |
1693 | int ret; | |
54105ddd | 1694 | size_t readbytes; |
eda75751 MC |
1695 | |
1696 | if (num < 0) { | |
4ee7d3f9 | 1697 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1698 | return -1; |
1699 | } | |
1700 | ||
4ee7d3f9 | 1701 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1702 | |
1703 | /* | |
1704 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1705 | * <= INT_MAX | |
1706 | */ | |
1707 | if (ret > 0) | |
54105ddd | 1708 | ret = (int)readbytes; |
eda75751 MC |
1709 | |
1710 | return ret; | |
1711 | } | |
1712 | ||
4ee7d3f9 KR |
1713 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1714 | { | |
1715 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1716 | ||
1717 | if (ret < 0) | |
1718 | ret = 0; | |
1719 | return ret; | |
1720 | } | |
1721 | ||
f533fbd4 | 1722 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1723 | { |
1724 | int ret; | |
1725 | ||
1726 | if (!s->server) { | |
f533fbd4 MC |
1727 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1728 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1729 | } |
1730 | ||
d781d247 MC |
1731 | switch (s->early_data_state) { |
1732 | case SSL_EARLY_DATA_NONE: | |
1733 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1734 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1735 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1736 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1737 | } |
1738 | /* fall through */ | |
1739 | ||
1740 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1741 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1742 | ret = SSL_accept(s); | |
1743 | if (ret <= 0) { | |
1744 | /* NBIO or error */ | |
1745 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1746 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1747 | } |
1748 | /* fall through */ | |
1749 | ||
1750 | case SSL_EARLY_DATA_READ_RETRY: | |
1751 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1752 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1753 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1754 | /* | |
ef6c191b MC |
1755 | * State machine will update early_data_state to |
1756 | * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData | |
1757 | * message | |
d781d247 MC |
1758 | */ |
1759 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1760 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1761 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1762 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1763 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1764 | } |
1765 | } else { | |
1766 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1767 | } | |
1768 | *readbytes = 0; | |
f533fbd4 | 1769 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1770 | |
1771 | default: | |
f533fbd4 MC |
1772 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1773 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1774 | } |
1775 | } | |
1776 | ||
f5b519c4 | 1777 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1778 | { |
1779 | return s->ext.early_data; | |
1780 | } | |
1781 | ||
4ee7d3f9 | 1782 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1783 | { |
c4c32155 | 1784 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1785 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1786 | return -1; |
1787 | } | |
1788 | ||
1789 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1790 | return 0; |
0f113f3e | 1791 | } |
e8aa8b6c | 1792 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1793 | struct ssl_async_args args; |
eda75751 | 1794 | int ret; |
0f113f3e | 1795 | |
add2f5ca MC |
1796 | args.s = s; |
1797 | args.buf = buf; | |
1798 | args.num = num; | |
ec447924 MC |
1799 | args.type = READFUNC; |
1800 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1801 | |
eda75751 | 1802 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1803 | *readbytes = s->asyncrw; |
eda75751 | 1804 | return ret; |
add2f5ca | 1805 | } else { |
54105ddd | 1806 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1807 | } |
07bbc92c MC |
1808 | } |
1809 | ||
4ee7d3f9 | 1810 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1811 | { |
1812 | int ret; | |
4ee7d3f9 | 1813 | size_t readbytes; |
7ee8627f MC |
1814 | |
1815 | if (num < 0) { | |
4ee7d3f9 | 1816 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1817 | return -1; |
1818 | } | |
1819 | ||
4ee7d3f9 | 1820 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1821 | |
1822 | /* | |
1823 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1824 | * <= INT_MAX | |
1825 | */ | |
1826 | if (ret > 0) | |
4ee7d3f9 | 1827 | ret = (int)readbytes; |
7ee8627f MC |
1828 | |
1829 | return ret; | |
1830 | } | |
1831 | ||
4ee7d3f9 KR |
1832 | |
1833 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1834 | { | |
1835 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1836 | ||
1837 | if (ret < 0) | |
1838 | ret = 0; | |
1839 | return ret; | |
1840 | } | |
1841 | ||
1842 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1843 | { |
c4c32155 | 1844 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1845 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1846 | return -1; |
1847 | } | |
1848 | ||
1849 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1850 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1851 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1852 | return -1; | |
0f113f3e | 1853 | } |
07bbc92c | 1854 | |
ef6c191b | 1855 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
09f28874 MC |
1856 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1857 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1858 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1859 | return 0; |
0a5ece5b | 1860 | } |
564547e4 MC |
1861 | /* If we are a client and haven't sent the Finished we better do that */ |
1862 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 1863 | |
e8aa8b6c | 1864 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1865 | int ret; |
add2f5ca MC |
1866 | struct ssl_async_args args; |
1867 | ||
1868 | args.s = s; | |
1869 | args.buf = (void *)buf; | |
1870 | args.num = num; | |
ec447924 MC |
1871 | args.type = WRITEFUNC; |
1872 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 1873 | |
7ee8627f MC |
1874 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
1875 | *written = s->asyncrw; | |
1876 | return ret; | |
07bbc92c | 1877 | } else { |
7ee8627f | 1878 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 1879 | } |
0f113f3e | 1880 | } |
d02b48c6 | 1881 | |
4ee7d3f9 KR |
1882 | int SSL_write(SSL *s, const void *buf, int num) |
1883 | { | |
1884 | int ret; | |
1885 | size_t written; | |
1886 | ||
1887 | if (num < 0) { | |
1888 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
1889 | return -1; | |
1890 | } | |
1891 | ||
1892 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
1893 | ||
1894 | /* | |
1895 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1896 | * <= INT_MAX | |
1897 | */ | |
1898 | if (ret > 0) | |
1899 | ret = (int)written; | |
1900 | ||
1901 | return ret; | |
1902 | } | |
1903 | ||
1904 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
1905 | { | |
1906 | int ret = ssl_write_internal(s, buf, num, written); | |
1907 | ||
1908 | if (ret < 0) | |
1909 | ret = 0; | |
1910 | return ret; | |
1911 | } | |
1912 | ||
0665b4ed | 1913 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 | 1914 | { |
a0cb628b | 1915 | int ret, early_data_state; |
49e7fe12 | 1916 | |
49e7fe12 MC |
1917 | switch (s->early_data_state) { |
1918 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
1919 | if (s->server |
1920 | || !SSL_in_before(s) | |
add8d0e9 MC |
1921 | || ((s->session == NULL || s->session->ext.max_early_data == 0) |
1922 | && (s->psk_use_session_cb == NULL))) { | |
09f28874 MC |
1923 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
1924 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
1925 | return 0; |
1926 | } | |
1927 | /* fall through */ | |
1928 | ||
1929 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
1930 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
1931 | ret = SSL_connect(s); | |
1932 | if (ret <= 0) { | |
1933 | /* NBIO or error */ | |
1934 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
1935 | return 0; | |
1936 | } | |
1937 | /* fall through */ | |
1938 | ||
1939 | case SSL_EARLY_DATA_WRITE_RETRY: | |
1940 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
1941 | ret = SSL_write_ex(s, buf, num, written); | |
1942 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
1943 | return ret; | |
1944 | ||
116d0da5 | 1945 | case SSL_EARLY_DATA_FINISHED_READING: |
a0cb628b MC |
1946 | case SSL_EARLY_DATA_READ_RETRY: |
1947 | early_data_state = s->early_data_state; | |
09f28874 MC |
1948 | /* We are a server writing to an unauthenticated client */ |
1949 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
1950 | ret = SSL_write_ex(s, buf, num, written); | |
bbea9f2c | 1951 | s->early_data_state = early_data_state; |
09f28874 MC |
1952 | return ret; |
1953 | ||
49e7fe12 | 1954 | default: |
09f28874 | 1955 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
1956 | return 0; |
1957 | } | |
1958 | } | |
1959 | ||
4f43d0e7 | 1960 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
1961 | { |
1962 | /* | |
1963 | * Note that this function behaves differently from what one might | |
1964 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1965 | * calling it once is usually not enough, even if blocking I/O is used | |
1966 | * (see ssl3_shutdown). | |
1967 | */ | |
1968 | ||
c4c32155 | 1969 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1970 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
1971 | return -1; | |
1972 | } | |
1973 | ||
64f9f406 | 1974 | if (!SSL_in_init(s)) { |
e8aa8b6c | 1975 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 1976 | struct ssl_async_args args; |
ec447924 | 1977 | |
64f9f406 MC |
1978 | args.s = s; |
1979 | args.type = OTHERFUNC; | |
1980 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 1981 | |
64f9f406 MC |
1982 | return ssl_start_async_job(s, &args, ssl_io_intern); |
1983 | } else { | |
1984 | return s->method->ssl_shutdown(s); | |
1985 | } | |
ec447924 | 1986 | } else { |
64f9f406 MC |
1987 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
1988 | return -1; | |
ec447924 | 1989 | } |
0f113f3e | 1990 | } |
d02b48c6 | 1991 | |
4fbfe86a | 1992 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 1993 | { |
f14afcaa | 1994 | /* |
a9998e2f | 1995 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
1996 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
1997 | * of SSL_renegotiate(). | |
1998 | */ | |
44c04a2e MC |
1999 | if (!SSL_IS_TLS13(s)) { |
2000 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
2001 | return 0; | |
2002 | } | |
2003 | ||
2004 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
2005 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
2006 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
2007 | return 0; | |
2008 | } | |
2009 | ||
2010 | if (!SSL_is_init_finished(s)) { | |
2011 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
2012 | return 0; | |
2013 | } | |
2014 | ||
2015 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 2016 | s->key_update = updatetype; |
44c04a2e MC |
2017 | return 1; |
2018 | } | |
2019 | ||
4fbfe86a | 2020 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
2021 | { |
2022 | return s->key_update; | |
2023 | } | |
2024 | ||
4f43d0e7 | 2025 | int SSL_renegotiate(SSL *s) |
0f113f3e | 2026 | { |
44c04a2e MC |
2027 | if (SSL_IS_TLS13(s)) { |
2028 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2029 | return 0; |
44c04a2e | 2030 | } |
cda6b998 | 2031 | |
db0f35dd TS |
2032 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2033 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION); | |
2034 | return 0; | |
2035 | } | |
44959ee4 | 2036 | |
db0f35dd | 2037 | s->renegotiate = 1; |
0f113f3e | 2038 | s->new_session = 1; |
44959ee4 | 2039 | |
26a7d938 | 2040 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2041 | } |
d02b48c6 | 2042 | |
44959ee4 | 2043 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 2044 | { |
db0f35dd TS |
2045 | if (SSL_IS_TLS13(s)) { |
2046 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2047 | return 0; |
db0f35dd | 2048 | } |
cda6b998 | 2049 | |
db0f35dd TS |
2050 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2051 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION); | |
2052 | return 0; | |
2053 | } | |
c519e89f | 2054 | |
db0f35dd | 2055 | s->renegotiate = 1; |
0f113f3e | 2056 | s->new_session = 0; |
c519e89f | 2057 | |
26a7d938 | 2058 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2059 | } |
44959ee4 | 2060 | |
6b0e9fac | 2061 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
2062 | { |
2063 | /* | |
2064 | * becomes true when negotiation is requested; false again once a | |
2065 | * handshake has finished | |
2066 | */ | |
2067 | return (s->renegotiate != 0); | |
2068 | } | |
2069 | ||
2070 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
2071 | { | |
2072 | long l; | |
2073 | ||
2074 | switch (cmd) { | |
2075 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2076 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 2077 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
2078 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
2079 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
26a7d938 | 2080 | return l; |
0f113f3e MC |
2081 | |
2082 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2083 | s->msg_callback_arg = parg; | |
2084 | return 1; | |
2085 | ||
0f113f3e MC |
2086 | case SSL_CTRL_MODE: |
2087 | return (s->mode |= larg); | |
2088 | case SSL_CTRL_CLEAR_MODE: | |
2089 | return (s->mode &= ~larg); | |
2090 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2091 | return (long)s->max_cert_list; |
0f113f3e | 2092 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2093 | if (larg < 0) |
2094 | return 0; | |
2095 | l = (long)s->max_cert_list; | |
2096 | s->max_cert_list = (size_t)larg; | |
2097 | return l; | |
0f113f3e MC |
2098 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
2099 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2100 | return 0; | |
2101 | s->max_send_fragment = larg; | |
d102d9df MC |
2102 | if (s->max_send_fragment < s->split_send_fragment) |
2103 | s->split_send_fragment = s->max_send_fragment; | |
2104 | return 1; | |
2105 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 2106 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
2107 | return 0; |
2108 | s->split_send_fragment = larg; | |
0f113f3e | 2109 | return 1; |
d102d9df MC |
2110 | case SSL_CTRL_SET_MAX_PIPELINES: |
2111 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2112 | return 0; | |
2113 | s->max_pipelines = larg; | |
94777c9c MC |
2114 | if (larg > 1) |
2115 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2116 | return 1; |
0f113f3e MC |
2117 | case SSL_CTRL_GET_RI_SUPPORT: |
2118 | if (s->s3) | |
2119 | return s->s3->send_connection_binding; | |
2120 | else | |
2121 | return 0; | |
2122 | case SSL_CTRL_CERT_FLAGS: | |
2123 | return (s->cert->cert_flags |= larg); | |
2124 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2125 | return (s->cert->cert_flags &= ~larg); | |
2126 | ||
2127 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2128 | if (parg) { | |
76106e60 | 2129 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 2130 | return 0; |
76106e60 DSH |
2131 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2132 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2133 | } else { |
2134 | return TLS_CIPHER_LEN; | |
2135 | } | |
c5364614 | 2136 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2137 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2138 | return -1; |
dccd20d1 | 2139 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2140 | return 1; |
2141 | else | |
2142 | return 0; | |
7946ab33 | 2143 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2144 | return ssl_check_allowed_versions(larg, s->max_proto_version) |
2145 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2146 | &s->min_proto_version); | |
3edabd3c CH |
2147 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2148 | return s->min_proto_version; | |
7946ab33 | 2149 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2150 | return ssl_check_allowed_versions(s->min_proto_version, larg) |
2151 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2152 | &s->max_proto_version); | |
3edabd3c CH |
2153 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2154 | return s->max_proto_version; | |
0f113f3e | 2155 | default: |
26a7d938 | 2156 | return s->method->ssl_ctrl(s, cmd, larg, parg); |
0f113f3e MC |
2157 | } |
2158 | } | |
2159 | ||
2160 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2161 | { | |
2162 | switch (cmd) { | |
2163 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2164 | s->msg_callback = (void (*) | |
2165 | (int write_p, int version, int content_type, | |
2166 | const void *buf, size_t len, SSL *ssl, | |
2167 | void *arg))(fp); | |
2168 | return 1; | |
2169 | ||
2170 | default: | |
26a7d938 | 2171 | return s->method->ssl_callback_ctrl(s, cmd, fp); |
0f113f3e MC |
2172 | } |
2173 | } | |
d3442bc7 | 2174 | |
3c1d6bbc | 2175 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2176 | { |
2177 | return ctx->sessions; | |
2178 | } | |
2179 | ||
2180 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2181 | { | |
2182 | long l; | |
2183 | /* For some cases with ctx == NULL perform syntax checks */ | |
2184 | if (ctx == NULL) { | |
2185 | switch (cmd) { | |
14536c8c | 2186 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2187 | case SSL_CTRL_SET_GROUPS_LIST: |
2188 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2189 | #endif |
2190 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2191 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2192 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2193 | default: | |
2194 | return 0; | |
2195 | } | |
2196 | } | |
2197 | ||
2198 | switch (cmd) { | |
2199 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2200 | return ctx->read_ahead; |
0f113f3e MC |
2201 | case SSL_CTRL_SET_READ_AHEAD: |
2202 | l = ctx->read_ahead; | |
2203 | ctx->read_ahead = larg; | |
26a7d938 | 2204 | return l; |
0f113f3e MC |
2205 | |
2206 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2207 | ctx->msg_callback_arg = parg; | |
2208 | return 1; | |
2209 | ||
2210 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2211 | return (long)ctx->max_cert_list; |
0f113f3e | 2212 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2213 | if (larg < 0) |
2214 | return 0; | |
2215 | l = (long)ctx->max_cert_list; | |
2216 | ctx->max_cert_list = (size_t)larg; | |
2217 | return l; | |
0f113f3e MC |
2218 | |
2219 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2220 | if (larg < 0) |
2221 | return 0; | |
2222 | l = (long)ctx->session_cache_size; | |
2223 | ctx->session_cache_size = (size_t)larg; | |
2224 | return l; | |
0f113f3e | 2225 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
26a7d938 | 2226 | return (long)ctx->session_cache_size; |
0f113f3e MC |
2227 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2228 | l = ctx->session_cache_mode; | |
2229 | ctx->session_cache_mode = larg; | |
26a7d938 | 2230 | return l; |
0f113f3e | 2231 | case SSL_CTRL_GET_SESS_CACHE_MODE: |
26a7d938 | 2232 | return ctx->session_cache_mode; |
0f113f3e MC |
2233 | |
2234 | case SSL_CTRL_SESS_NUMBER: | |
26a7d938 | 2235 | return lh_SSL_SESSION_num_items(ctx->sessions); |
0f113f3e | 2236 | case SSL_CTRL_SESS_CONNECT: |
26a7d938 | 2237 | return ctx->stats.sess_connect; |
0f113f3e | 2238 | case SSL_CTRL_SESS_CONNECT_GOOD: |
26a7d938 | 2239 | return ctx->stats.sess_connect_good; |
0f113f3e | 2240 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: |
26a7d938 | 2241 | return ctx->stats.sess_connect_renegotiate; |
0f113f3e | 2242 | case SSL_CTRL_SESS_ACCEPT: |
26a7d938 | 2243 | return ctx->stats.sess_accept; |
0f113f3e | 2244 | case SSL_CTRL_SESS_ACCEPT_GOOD: |
26a7d938 | 2245 | return ctx->stats.sess_accept_good; |
0f113f3e | 2246 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: |
26a7d938 | 2247 | return ctx->stats.sess_accept_renegotiate; |
0f113f3e | 2248 | case SSL_CTRL_SESS_HIT: |
26a7d938 | 2249 | return ctx->stats.sess_hit; |
0f113f3e | 2250 | case SSL_CTRL_SESS_CB_HIT: |
26a7d938 | 2251 | return ctx->stats.sess_cb_hit; |
0f113f3e | 2252 | case SSL_CTRL_SESS_MISSES: |
26a7d938 | 2253 | return ctx->stats.sess_miss; |
0f113f3e | 2254 | case SSL_CTRL_SESS_TIMEOUTS: |
26a7d938 | 2255 | return ctx->stats.sess_timeout; |
0f113f3e | 2256 | case SSL_CTRL_SESS_CACHE_FULL: |
26a7d938 | 2257 | return ctx->stats.sess_cache_full; |
0f113f3e MC |
2258 | case SSL_CTRL_MODE: |
2259 | return (ctx->mode |= larg); | |
2260 | case SSL_CTRL_CLEAR_MODE: | |
2261 | return (ctx->mode &= ~larg); | |
2262 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2263 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2264 | return 0; | |
2265 | ctx->max_send_fragment = larg; | |
d102d9df | 2266 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2267 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2268 | return 1; |
d102d9df | 2269 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2270 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2271 | return 0; |
2272 | ctx->split_send_fragment = larg; | |
2273 | return 1; | |
2274 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2275 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2276 | return 0; | |
2277 | ctx->max_pipelines = larg; | |
07077415 | 2278 | return 1; |
0f113f3e MC |
2279 | case SSL_CTRL_CERT_FLAGS: |
2280 | return (ctx->cert->cert_flags |= larg); | |
2281 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2282 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2283 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2284 | return ssl_check_allowed_versions(larg, ctx->max_proto_version) |
2285 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2286 | &ctx->min_proto_version); | |
3edabd3c CH |
2287 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2288 | return ctx->min_proto_version; | |
7946ab33 | 2289 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2290 | return ssl_check_allowed_versions(ctx->min_proto_version, larg) |
2291 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2292 | &ctx->max_proto_version); | |
3edabd3c CH |
2293 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2294 | return ctx->max_proto_version; | |
0f113f3e | 2295 | default: |
26a7d938 | 2296 | return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg); |
0f113f3e MC |
2297 | } |
2298 | } | |
2299 | ||
2300 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2301 | { | |
2302 | switch (cmd) { | |
2303 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2304 | ctx->msg_callback = (void (*) | |
2305 | (int write_p, int version, int content_type, | |
2306 | const void *buf, size_t len, SSL *ssl, | |
2307 | void *arg))(fp); | |
2308 | return 1; | |
2309 | ||
2310 | default: | |
26a7d938 | 2311 | return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp); |
0f113f3e MC |
2312 | } |
2313 | } | |
d3442bc7 | 2314 | |
ccd86b68 | 2315 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2316 | { |
90d9e49a DSH |
2317 | if (a->id > b->id) |
2318 | return 1; | |
2319 | if (a->id < b->id) | |
2320 | return -1; | |
2321 | return 0; | |
0f113f3e MC |
2322 | } |
2323 | ||
2324 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2325 | const SSL_CIPHER *const *bp) | |
2326 | { | |
90d9e49a DSH |
2327 | if ((*ap)->id > (*bp)->id) |
2328 | return 1; | |
2329 | if ((*ap)->id < (*bp)->id) | |
2330 | return -1; | |
2331 | return 0; | |
0f113f3e | 2332 | } |
d02b48c6 | 2333 | |
4f43d0e7 | 2334 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2335 | * preference */ |
0821bcd4 | 2336 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2337 | { |
2338 | if (s != NULL) { | |
2339 | if (s->cipher_list != NULL) { | |
26a7d938 | 2340 | return s->cipher_list; |
0f113f3e | 2341 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { |
26a7d938 | 2342 | return s->ctx->cipher_list; |
0f113f3e MC |
2343 | } |
2344 | } | |
26a7d938 | 2345 | return NULL; |
0f113f3e MC |
2346 | } |
2347 | ||
831eef2c NM |
2348 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2349 | { | |
2350 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2351 | return NULL; | |
2352 | return s->session->ciphers; | |
2353 | } | |
2354 | ||
8b8e5bed | 2355 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2356 | { |
2357 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2358 | int i; | |
2359 | ciphers = SSL_get_ciphers(s); | |
2360 | if (!ciphers) | |
2361 | return NULL; | |
2362 | ssl_set_client_disabled(s); | |
2363 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { | |
2364 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
8af91fd9 | 2365 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) { |
0f113f3e MC |
2366 | if (!sk) |
2367 | sk = sk_SSL_CIPHER_new_null(); | |
2368 | if (!sk) | |
2369 | return NULL; | |
2370 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2371 | sk_SSL_CIPHER_free(sk); | |
2372 | return NULL; | |
2373 | } | |
2374 | } | |
2375 | } | |
2376 | return sk; | |
2377 | } | |
8b8e5bed | 2378 | |
4f43d0e7 | 2379 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2380 | * algorithm id */ |
f73e07cf | 2381 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2382 | { |
2383 | if (s != NULL) { | |
2384 | if (s->cipher_list_by_id != NULL) { | |
26a7d938 | 2385 | return s->cipher_list_by_id; |
0f113f3e | 2386 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { |
26a7d938 | 2387 | return s->ctx->cipher_list_by_id; |
0f113f3e MC |
2388 | } |
2389 | } | |
26a7d938 | 2390 | return NULL; |
0f113f3e | 2391 | } |
d02b48c6 | 2392 | |
4f43d0e7 | 2393 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2394 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2395 | { | |
4a640fb6 | 2396 | const SSL_CIPHER *c; |
0f113f3e MC |
2397 | STACK_OF(SSL_CIPHER) *sk; |
2398 | ||
2399 | if (s == NULL) | |
26a7d938 | 2400 | return NULL; |
0f113f3e MC |
2401 | sk = SSL_get_ciphers(s); |
2402 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
26a7d938 | 2403 | return NULL; |
0f113f3e MC |
2404 | c = sk_SSL_CIPHER_value(sk, n); |
2405 | if (c == NULL) | |
26a7d938 K |
2406 | return NULL; |
2407 | return c->name; | |
0f113f3e | 2408 | } |
d02b48c6 | 2409 | |
9d5ac953 KY |
2410 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2411 | * preference */ | |
2412 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2413 | { | |
2414 | if (ctx != NULL) | |
2415 | return ctx->cipher_list; | |
2416 | return NULL; | |
2417 | } | |
2418 | ||
25f923dd | 2419 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2420 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2421 | { |
2422 | STACK_OF(SSL_CIPHER) *sk; | |
2423 | ||
2424 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
2425 | &ctx->cipher_list_by_id, str, ctx->cert); | |
2426 | /* | |
2427 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2428 | * find a cipher matching the given rule string (for example if the rule | |
2429 | * string specifies a cipher which has been disabled). This is not an | |
2430 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2431 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2432 | */ | |
2433 | if (sk == NULL) | |
2434 | return 0; | |
2435 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2436 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2437 | return 0; | |
2438 | } | |
2439 | return 1; | |
2440 | } | |
d02b48c6 | 2441 | |
4f43d0e7 | 2442 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2443 | int SSL_set_cipher_list(SSL *s, const char *str) |
2444 | { | |
2445 | STACK_OF(SSL_CIPHER) *sk; | |
2446 | ||
2447 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
2448 | &s->cipher_list_by_id, str, s->cert); | |
2449 | /* see comment in SSL_CTX_set_cipher_list */ | |
2450 | if (sk == NULL) | |
2451 | return 0; | |
2452 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2453 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2454 | return 0; | |
2455 | } | |
2456 | return 1; | |
2457 | } | |
d02b48c6 | 2458 | |
0f113f3e MC |
2459 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
2460 | { | |
2461 | char *p; | |
2462 | STACK_OF(SSL_CIPHER) *sk; | |
4a640fb6 | 2463 | const SSL_CIPHER *c; |
0f113f3e MC |
2464 | int i; |
2465 | ||
2466 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
26a7d938 | 2467 | return NULL; |
0f113f3e MC |
2468 | |
2469 | p = buf; | |
2470 | sk = s->session->ciphers; | |
2471 | ||
2472 | if (sk_SSL_CIPHER_num(sk) == 0) | |
2473 | return NULL; | |
2474 | ||
2475 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
2476 | int n; | |
2477 | ||
2478 | c = sk_SSL_CIPHER_value(sk, i); | |
2479 | n = strlen(c->name); | |
2480 | if (n + 1 > len) { | |
2481 | if (p != buf) | |
2482 | --p; | |
2483 | *p = '\0'; | |
2484 | return buf; | |
2485 | } | |
4cacc9d5 | 2486 | strcpy(p, c->name); |
0f113f3e MC |
2487 | p += n; |
2488 | *(p++) = ':'; | |
2489 | len -= n + 1; | |
2490 | } | |
2491 | p[-1] = '\0'; | |
26a7d938 | 2492 | return buf; |
0f113f3e MC |
2493 | } |
2494 | ||
52b8dad8 | 2495 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2496 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2497 | */ |
2498 | ||
f1fd4544 | 2499 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2500 | { |
2501 | if (type != TLSEXT_NAMETYPE_host_name) | |
2502 | return NULL; | |
a13c20f6 | 2503 | |
aff8c126 RS |
2504 | return s->session && !s->ext.hostname ? |
2505 | s->session->ext.hostname : s->ext.hostname; | |
0f113f3e | 2506 | } |
ed3883d2 | 2507 | |
f1fd4544 | 2508 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2509 | { |
2510 | if (s->session | |
aff8c126 RS |
2511 | && (!s->ext.hostname ? s->session-> |
2512 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2513 | return TLSEXT_NAMETYPE_host_name; |
2514 | return -1; | |
2515 | } | |
ee2ffc27 | 2516 | |
0f113f3e MC |
2517 | /* |
2518 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2519 | * expected that this function is called from the callback set by |
0f113f3e MC |
2520 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2521 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2522 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2523 | * string may be truncated. The current, but experimental algorithm for | |
2524 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2525 | * is indicated to the callback. In this case, the client application has to | |
2526 | * abort the connection or have a default application level protocol. 2) If | |
2527 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2528 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2529 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2530 | * protocol in the server's list that it supports and selects this protocol. | |
2531 | * This is because it's assumed that the server has better information about | |
2532 | * which protocol a client should use. 4) If the client doesn't support any | |
2533 | * of the server's advertised protocols, then this is treated the same as | |
2534 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2535 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2536 | */ |
0f113f3e MC |
2537 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2538 | const unsigned char *server, | |
2539 | unsigned int server_len, | |
a230b26e | 2540 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2541 | { |
2542 | unsigned int i, j; | |
2543 | const unsigned char *result; | |
2544 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2545 | ||
2546 | /* | |
2547 | * For each protocol in server preference order, see if we support it. | |
2548 | */ | |
2549 | for (i = 0; i < server_len;) { | |
2550 | for (j = 0; j < client_len;) { | |
2551 | if (server[i] == client[j] && | |
2552 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2553 | /* We found a match */ | |
2554 | result = &server[i]; | |
2555 | status = OPENSSL_NPN_NEGOTIATED; | |
2556 | goto found; | |
2557 | } | |
2558 | j += client[j]; | |
2559 | j++; | |
2560 | } | |
2561 | i += server[i]; | |
2562 | i++; | |
2563 | } | |
2564 | ||
2565 | /* There's no overlap between our protocols and the server's list. */ | |
2566 | result = client; | |
2567 | status = OPENSSL_NPN_NO_OVERLAP; | |
2568 | ||
2569 | found: | |
2570 | *out = (unsigned char *)result + 1; | |
2571 | *outlen = result[0]; | |
2572 | return status; | |
2573 | } | |
ee2ffc27 | 2574 | |
e481f9b9 | 2575 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2576 | /* |
2577 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2578 | * client's requested protocol for this connection and returns 0. If the | |
2579 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2580 | * the client can request any protocol it chooses. The value returned from | |
2581 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2582 | * provided by the callback. |
2583 | */ | |
0f113f3e MC |
2584 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2585 | unsigned *len) | |
2586 | { | |
aff8c126 | 2587 | *data = s->ext.npn; |
0f113f3e MC |
2588 | if (!*data) { |
2589 | *len = 0; | |
2590 | } else { | |
aff8c126 | 2591 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2592 | } |
2593 | } | |
2594 | ||
2595 | /* | |
aff8c126 | 2596 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2597 | * a TLS server needs a list of supported protocols for Next Protocol |
2598 | * Negotiation. The returned list must be in wire format. The list is | |
2599 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2600 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2601 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2602 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2603 | * ServerHello. | |
2604 | */ | |
aff8c126 | 2605 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2606 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2607 | void *arg) |
0f113f3e | 2608 | { |
aff8c126 RS |
2609 | ctx->ext.npn_advertised_cb = cb; |
2610 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2611 | } |
2612 | ||
2613 | /* | |
2614 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2615 | * client needs to select a protocol from the server's provided list. |out| |
2616 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2617 | * The length of the protocol name must be written into |outlen|. The |
2618 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2619 | * callback can assume that |in| is syntactically valid. The client must | |
2620 | * select a protocol. It is fatal to the connection if this callback returns | |
2621 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2622 | */ |
aff8c126 | 2623 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2624 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2625 | void *arg) |
0f113f3e | 2626 | { |
aff8c126 RS |
2627 | ctx->ext.npn_select_cb = cb; |
2628 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2629 | } |
e481f9b9 | 2630 | #endif |
a398f821 | 2631 | |
0f113f3e MC |
2632 | /* |
2633 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2634 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2635 | * length-prefixed strings). Returns 0 on success. |
2636 | */ | |
2637 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2638 | unsigned int protos_len) |
0f113f3e | 2639 | { |
aff8c126 RS |
2640 | OPENSSL_free(ctx->ext.alpn); |
2641 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2642 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2643 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2644 | return 1; |
72e9be3d | 2645 | } |
aff8c126 | 2646 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2647 | |
2648 | return 0; | |
2649 | } | |
2650 | ||
2651 | /* | |
2652 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2653 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2654 | * length-prefixed strings). Returns 0 on success. |
2655 | */ | |
2656 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2657 | unsigned int protos_len) |
0f113f3e | 2658 | { |
aff8c126 RS |
2659 | OPENSSL_free(ssl->ext.alpn); |
2660 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2661 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2662 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2663 | return 1; |
72e9be3d | 2664 | } |
aff8c126 | 2665 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2666 | |
2667 | return 0; | |
2668 | } | |
2669 | ||
2670 | /* | |
2671 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2672 | * called during ClientHello processing in order to select an ALPN protocol | |
2673 | * from the client's list of offered protocols. | |
2674 | */ | |
2675 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2676 | SSL_CTX_alpn_select_cb_func cb, |
2677 | void *arg) | |
0f113f3e | 2678 | { |
aff8c126 RS |
2679 | ctx->ext.alpn_select_cb = cb; |
2680 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2681 | } |
2682 | ||
2683 | /* | |
69687aa8 F |
2684 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2685 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2686 | * (not including the leading length-prefix byte). If the server didn't |
2687 | * respond with a negotiated protocol then |*len| will be zero. | |
2688 | */ | |
6f017a8f | 2689 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2690 | unsigned int *len) |
0f113f3e MC |
2691 | { |
2692 | *data = NULL; | |
2693 | if (ssl->s3) | |
2694 | *data = ssl->s3->alpn_selected; | |
2695 | if (*data == NULL) | |
2696 | *len = 0; | |
2697 | else | |
348240c6 | 2698 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2699 | } |
2700 | ||
74b4b494 | 2701 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e | 2702 | const char *label, size_t llen, |
23cec1f4 | 2703 | const unsigned char *context, size_t contextlen, |
0f113f3e MC |
2704 | int use_context) |
2705 | { | |
c8a18468 | 2706 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2707 | return -1; |
e0af0405 | 2708 | |
0f113f3e | 2709 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
23cec1f4 MC |
2710 | llen, context, |
2711 | contextlen, use_context); | |
0f113f3e | 2712 | } |
e0af0405 | 2713 | |
3c1d6bbc | 2714 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2715 | { |
bd5d27c1 | 2716 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2717 | unsigned long l; |
bd5d27c1 DB |
2718 | unsigned char tmp_storage[4]; |
2719 | ||
2720 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2721 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2722 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2723 | session_id = tmp_storage; | |
2724 | } | |
0f113f3e MC |
2725 | |
2726 | l = (unsigned long) | |
bd5d27c1 DB |
2727 | ((unsigned long)session_id[0]) | |
2728 | ((unsigned long)session_id[1] << 8L) | | |
2729 | ((unsigned long)session_id[2] << 16L) | | |
2730 | ((unsigned long)session_id[3] << 24L); | |
26a7d938 | 2731 | return l; |
0f113f3e MC |
2732 | } |
2733 | ||
2734 | /* | |
2735 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2736 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2737 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2738 | * being able to construct an SSL_SESSION that will collide with any existing | |
2739 | * session with a matching session ID. | |
2740 | */ | |
2741 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2742 | { | |
2743 | if (a->ssl_version != b->ssl_version) | |
208fb891 | 2744 | return 1; |
0f113f3e | 2745 | if (a->session_id_length != b->session_id_length) |
208fb891 | 2746 | return 1; |
26a7d938 | 2747 | return memcmp(a->session_id, b->session_id, a->session_id_length); |
0f113f3e MC |
2748 | } |
2749 | ||
2750 | /* | |
2751 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2752 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2753 | * variable. The reason is that the functions aren't static, they're exposed |
2754 | * via ssl.h. | |
2755 | */ | |
97b17195 | 2756 | |
4ebb342f | 2757 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2758 | { |
2759 | SSL_CTX *ret = NULL; | |
2760 | ||
2761 | if (meth == NULL) { | |
2762 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
26a7d938 | 2763 | return NULL; |
0f113f3e MC |
2764 | } |
2765 | ||
0fc32b07 MC |
2766 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2767 | return NULL; | |
7fa792d1 | 2768 | |
0f113f3e MC |
2769 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2770 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2771 | goto err; | |
2772 | } | |
b51bce94 | 2773 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2774 | if (ret == NULL) |
2775 | goto err; | |
2776 | ||
0f113f3e | 2777 | ret->method = meth; |
7946ab33 KR |
2778 | ret->min_proto_version = 0; |
2779 | ret->max_proto_version = 0; | |
0f113f3e MC |
2780 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2781 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2782 | /* We take the system default. */ |
0f113f3e | 2783 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2784 | ret->references = 1; |
16203f7b AG |
2785 | ret->lock = CRYPTO_THREAD_lock_new(); |
2786 | if (ret->lock == NULL) { | |
2787 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2788 | OPENSSL_free(ret); | |
2789 | return NULL; | |
2790 | } | |
0f113f3e | 2791 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2792 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2793 | if ((ret->cert = ssl_cert_new()) == NULL) |
2794 | goto err; | |
2795 | ||
62d0577e | 2796 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2797 | if (ret->sessions == NULL) |
2798 | goto err; | |
2799 | ret->cert_store = X509_STORE_new(); | |
2800 | if (ret->cert_store == NULL) | |
2801 | goto err; | |
ed29e82a RP |
2802 | #ifndef OPENSSL_NO_CT |
2803 | ret->ctlog_store = CTLOG_STORE_new(); | |
2804 | if (ret->ctlog_store == NULL) | |
2805 | goto err; | |
2806 | #endif | |
61986d32 | 2807 | if (!ssl_create_cipher_list(ret->method, |
a230b26e EK |
2808 | &ret->cipher_list, &ret->cipher_list_by_id, |
2809 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
2810 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
2811 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
2812 | goto err2; | |
2813 | } | |
2814 | ||
2815 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 2816 | if (ret->param == NULL) |
0f113f3e MC |
2817 | goto err; |
2818 | ||
2819 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
2820 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
2821 | goto err2; | |
2822 | } | |
2823 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
2824 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
2825 | goto err2; | |
2826 | } | |
2827 | ||
fa7c2637 | 2828 | if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) |
0f113f3e MC |
2829 | goto err; |
2830 | ||
25a807bc F |
2831 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
2832 | goto err; | |
0f113f3e | 2833 | |
0f113f3e MC |
2834 | /* No compression for DTLS */ |
2835 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
2836 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
2837 | ||
2838 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 2839 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 2840 | |
4e2e1ec9 | 2841 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
2842 | if ((RAND_bytes(ret->ext.tick_key_name, |
2843 | sizeof(ret->ext.tick_key_name)) <= 0) | |
2844 | || (RAND_bytes(ret->ext.tick_hmac_key, | |
2845 | sizeof(ret->ext.tick_hmac_key)) <= 0) | |
2846 | || (RAND_bytes(ret->ext.tick_aes_key, | |
2847 | sizeof(ret->ext.tick_aes_key)) <= 0)) | |
0f113f3e | 2848 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 2849 | |
edc032b5 | 2850 | #ifndef OPENSSL_NO_SRP |
61986d32 | 2851 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 2852 | goto err; |
edc032b5 | 2853 | #endif |
4db9677b | 2854 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
2855 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
2856 | # define eng_strx(x) #x | |
2857 | # define eng_str(x) eng_strx(x) | |
2858 | /* Use specific client engine automatically... ignore errors */ | |
2859 | { | |
2860 | ENGINE *eng; | |
2861 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2862 | if (!eng) { | |
2863 | ERR_clear_error(); | |
2864 | ENGINE_load_builtin_engines(); | |
2865 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2866 | } | |
2867 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2868 | ERR_clear_error(); | |
2869 | } | |
2870 | # endif | |
2871 | #endif | |
2872 | /* | |
2873 | * Default is to connect to non-RI servers. When RI is more widely | |
2874 | * deployed might change this. | |
2875 | */ | |
2876 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
2877 | /* |
2878 | * Disable compression by default to prevent CRIME. Applications can | |
2879 | * re-enable compression by configuring | |
2880 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
2881 | * or by using the SSL_CONF library. | |
2882 | */ | |
2883 | ret->options |= SSL_OP_NO_COMPRESSION; | |
0f113f3e | 2884 | |
aff8c126 | 2885 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 2886 | |
bfa9a9af MC |
2887 | /* |
2888 | * Default max early data is a fully loaded single record. Could be split | |
2889 | * across multiple records in practice | |
2890 | */ | |
2891 | ret->max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
2892 | ||
16203f7b | 2893 | return ret; |
0f113f3e MC |
2894 | err: |
2895 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2896 | err2: | |
e0e920b1 | 2897 | SSL_CTX_free(ret); |
16203f7b | 2898 | return NULL; |
0f113f3e | 2899 | } |
d02b48c6 | 2900 | |
c5ebfcab | 2901 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 2902 | { |
16203f7b | 2903 | int i; |
c5ebfcab | 2904 | |
2f545ae4 | 2905 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
2906 | return 0; |
2907 | ||
2908 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
2909 | REF_ASSERT_ISNT(i < 2); | |
2910 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
2911 | } |
2912 | ||
4f43d0e7 | 2913 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
2914 | { |
2915 | int i; | |
d02b48c6 | 2916 | |
0f113f3e MC |
2917 | if (a == NULL) |
2918 | return; | |
d02b48c6 | 2919 | |
2f545ae4 | 2920 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 2921 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
2922 | if (i > 0) |
2923 | return; | |
f3f1cf84 | 2924 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 2925 | |
222561fe | 2926 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 2927 | dane_ctx_final(&a->dane); |
0f113f3e MC |
2928 | |
2929 | /* | |
2930 | * Free internal session cache. However: the remove_cb() may reference | |
2931 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2932 | * after the sessions were flushed. | |
2933 | * As the ex_data handling routines might also touch the session cache, | |
2934 | * the most secure solution seems to be: empty (flush) the cache, then | |
2935 | * free ex_data, then finally free the cache. | |
2936 | * (See ticket [openssl.org #212].) | |
2937 | */ | |
2938 | if (a->sessions != NULL) | |
2939 | SSL_CTX_flush_sessions(a, 0); | |
2940 | ||
2941 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 2942 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 2943 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
2944 | #ifndef OPENSSL_NO_CT |
2945 | CTLOG_STORE_free(a->ctlog_store); | |
2946 | #endif | |
25aaa98a RS |
2947 | sk_SSL_CIPHER_free(a->cipher_list); |
2948 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
e0e920b1 | 2949 | ssl_cert_free(a->cert); |
fa7c2637 | 2950 | sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free); |
222561fe | 2951 | sk_X509_pop_free(a->extra_certs, X509_free); |
0f113f3e | 2952 | a->comp_methods = NULL; |
e783bae2 | 2953 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 2954 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 2955 | #endif |
edc032b5 | 2956 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 2957 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 2958 | #endif |
bdfe932d | 2959 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 2960 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 2961 | #endif |
8671b898 | 2962 | |
e481f9b9 | 2963 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
2964 | OPENSSL_free(a->ext.ecpointformats); |
2965 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 2966 | #endif |
aff8c126 | 2967 | OPENSSL_free(a->ext.alpn); |
8671b898 | 2968 | |
16203f7b AG |
2969 | CRYPTO_THREAD_lock_free(a->lock); |
2970 | ||
0f113f3e MC |
2971 | OPENSSL_free(a); |
2972 | } | |
d02b48c6 | 2973 | |
3ae76679 | 2974 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
2975 | { |
2976 | ctx->default_passwd_callback = cb; | |
2977 | } | |
2978 | ||
2979 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2980 | { | |
2981 | ctx->default_passwd_callback_userdata = u; | |
2982 | } | |
2983 | ||
0c452abc CH |
2984 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
2985 | { | |
2986 | return ctx->default_passwd_callback; | |
2987 | } | |
2988 | ||
2989 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
2990 | { | |
2991 | return ctx->default_passwd_callback_userdata; | |
2992 | } | |
2993 | ||
a974e64a MC |
2994 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
2995 | { | |
2996 | s->default_passwd_callback = cb; | |
2997 | } | |
2998 | ||
2999 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
3000 | { | |
3001 | s->default_passwd_callback_userdata = u; | |
3002 | } | |
3003 | ||
0c452abc CH |
3004 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
3005 | { | |
3006 | return s->default_passwd_callback; | |
3007 | } | |
3008 | ||
3009 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
3010 | { | |
3011 | return s->default_passwd_callback_userdata; | |
3012 | } | |
3013 | ||
0f113f3e MC |
3014 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
3015 | int (*cb) (X509_STORE_CTX *, void *), | |
3016 | void *arg) | |
3017 | { | |
3018 | ctx->app_verify_callback = cb; | |
3019 | ctx->app_verify_arg = arg; | |
3020 | } | |
3021 | ||
3022 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
3023 | int (*cb) (int, X509_STORE_CTX *)) | |
3024 | { | |
3025 | ctx->verify_mode = mode; | |
3026 | ctx->default_verify_callback = cb; | |
3027 | } | |
3028 | ||
3029 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
3030 | { | |
3031 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
3032 | } | |
3033 | ||
a230b26e | 3034 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
3035 | { |
3036 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
3037 | } | |
3038 | ||
3039 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
3040 | { | |
3041 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
3042 | } | |
18d71588 | 3043 | |
2cf28d61 | 3044 | void ssl_set_masks(SSL *s) |
0f113f3e | 3045 | { |
6383d316 | 3046 | CERT *c = s->cert; |
f7d53487 | 3047 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 3048 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 3049 | unsigned long mask_k, mask_a; |
10bf4fc2 | 3050 | #ifndef OPENSSL_NO_EC |
361a1191 | 3051 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 3052 | #endif |
0f113f3e MC |
3053 | if (c == NULL) |
3054 | return; | |
d02b48c6 | 3055 | |
bc36ee62 | 3056 | #ifndef OPENSSL_NO_DH |
0f113f3e | 3057 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 3058 | #else |
361a1191 | 3059 | dh_tmp = 0; |
d02b48c6 RE |
3060 | #endif |
3061 | ||
d0ff28f8 | 3062 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
3063 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
3064 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 3065 | #ifndef OPENSSL_NO_EC |
6383d316 | 3066 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 3067 | #endif |
0f113f3e MC |
3068 | mask_k = 0; |
3069 | mask_a = 0; | |
0e1dba93 | 3070 | |
d02b48c6 | 3071 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
3072 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
3073 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
3074 | #endif |
3075 | ||
2a9b9654 | 3076 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 3077 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
3078 | mask_k |= SSL_kGOST; |
3079 | mask_a |= SSL_aGOST12; | |
3080 | } | |
4020c0b3 | 3081 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
3082 | mask_k |= SSL_kGOST; |
3083 | mask_a |= SSL_aGOST12; | |
3084 | } | |
4020c0b3 | 3085 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
3086 | mask_k |= SSL_kGOST; |
3087 | mask_a |= SSL_aGOST01; | |
3088 | } | |
2a9b9654 | 3089 | #endif |
0f113f3e | 3090 | |
361a1191 | 3091 | if (rsa_enc) |
0f113f3e | 3092 | mask_k |= SSL_kRSA; |
d02b48c6 | 3093 | |
0f113f3e MC |
3094 | if (dh_tmp) |
3095 | mask_k |= SSL_kDHE; | |
d02b48c6 | 3096 | |
6aaa29fb DSH |
3097 | /* |
3098 | * If we only have an RSA-PSS certificate allow RSA authentication | |
3099 | * if TLS 1.2 and peer supports it. | |
3100 | */ | |
3101 | ||
3102 | if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN) | |
3103 | && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN | |
3104 | && TLS1_get_version(s) == TLS1_2_VERSION)) | |
0f113f3e | 3105 | mask_a |= SSL_aRSA; |
d02b48c6 | 3106 | |
0f113f3e MC |
3107 | if (dsa_sign) { |
3108 | mask_a |= SSL_aDSS; | |
0f113f3e | 3109 | } |
d02b48c6 | 3110 | |
0f113f3e | 3111 | mask_a |= SSL_aNULL; |
d02b48c6 | 3112 | |
0f113f3e MC |
3113 | /* |
3114 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
3115 | * depending on the key usage extension. | |
3116 | */ | |
14536c8c | 3117 | #ifndef OPENSSL_NO_EC |
0f113f3e | 3118 | if (have_ecc_cert) { |
a8d8e06b | 3119 | uint32_t ex_kusage; |
4020c0b3 | 3120 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 3121 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 3122 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 3123 | ecdsa_ok = 0; |
c7c46256 | 3124 | if (ecdsa_ok) |
0f113f3e | 3125 | mask_a |= SSL_aECDSA; |
0f113f3e | 3126 | } |
b2021556 DSH |
3127 | /* Allow Ed25519 for TLS 1.2 if peer supports it */ |
3128 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519) | |
3129 | && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN | |
3130 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3131 | mask_a |= SSL_aECDSA; | |
14536c8c | 3132 | #endif |
ea262260 | 3133 | |
10bf4fc2 | 3134 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 3135 | mask_k |= SSL_kECDHE; |
ea262260 | 3136 | #endif |
ddac1974 NL |
3137 | |
3138 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3139 | mask_k |= SSL_kPSK; |
3140 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3141 | if (mask_k & SSL_kRSA) |
3142 | mask_k |= SSL_kRSAPSK; | |
3143 | if (mask_k & SSL_kDHE) | |
3144 | mask_k |= SSL_kDHEPSK; | |
3145 | if (mask_k & SSL_kECDHE) | |
3146 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3147 | #endif |
3148 | ||
4d69f9e6 DSH |
3149 | s->s3->tmp.mask_k = mask_k; |
3150 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3151 | } |
d02b48c6 | 3152 | |
ef236ec3 DSH |
3153 | #ifndef OPENSSL_NO_EC |
3154 | ||
a2f9200f | 3155 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3156 | { |
ce0c1f2b | 3157 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3158 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3159 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3160 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3161 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3162 | return 0; | |
3163 | } | |
3164 | } | |
0f113f3e MC |
3165 | return 1; /* all checks are ok */ |
3166 | } | |
ea262260 | 3167 | |
ef236ec3 DSH |
3168 | #endif |
3169 | ||
a398f821 | 3170 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3171 | size_t *serverinfo_length) |
3172 | { | |
a497cf25 | 3173 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3174 | *serverinfo_length = 0; |
3175 | ||
a497cf25 | 3176 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3177 | return 0; |
3178 | ||
a497cf25 DSH |
3179 | *serverinfo = cpk->serverinfo; |
3180 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3181 | return 1; |
3182 | } | |
0f113f3e MC |
3183 | |
3184 | void ssl_update_cache(SSL *s, int mode) | |
3185 | { | |
3186 | int i; | |
3187 | ||
3188 | /* | |
3189 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3190 | * would be rather hard to do anyway :-) | |
3191 | */ | |
3192 | if (s->session->session_id_length == 0) | |
3193 | return; | |
3194 | ||
3195 | i = s->session_ctx->session_cache_mode; | |
5d61491c MC |
3196 | if ((i & mode) != 0 |
3197 | && (!s->hit || SSL_IS_TLS13(s)) | |
3198 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) != 0 | |
0f113f3e | 3199 | || SSL_CTX_add_session(s->session_ctx, s->session)) |
5d61491c | 3200 | && s->session_ctx->new_session_cb != NULL) { |
16203f7b | 3201 | SSL_SESSION_up_ref(s->session); |
0f113f3e MC |
3202 | if (!s->session_ctx->new_session_cb(s, s->session)) |
3203 | SSL_SESSION_free(s->session); | |
3204 | } | |
3205 | ||
3206 | /* auto flush every 255 connections */ | |
3207 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
3208 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
3209 | ? s->session_ctx->stats.sess_connect_good | |
3210 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
3211 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
3212 | } | |
3213 | } | |
3214 | } | |
d02b48c6 | 3215 | |
ba168244 | 3216 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3217 | { |
3218 | return ctx->method; | |
3219 | } | |
ba168244 | 3220 | |
4ebb342f | 3221 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e | 3222 | { |
26a7d938 | 3223 | return s->method; |
0f113f3e | 3224 | } |
d02b48c6 | 3225 | |
4ebb342f | 3226 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3227 | { |
0f113f3e MC |
3228 | int ret = 1; |
3229 | ||
3230 | if (s->method != meth) { | |
919ba009 | 3231 | const SSL_METHOD *sm = s->method; |
a230b26e | 3232 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3233 | |
919ba009 | 3234 | if (sm->version == meth->version) |
0f113f3e MC |
3235 | s->method = meth; |
3236 | else { | |
919ba009 | 3237 | sm->ssl_free(s); |
0f113f3e MC |
3238 | s->method = meth; |
3239 | ret = s->method->ssl_new(s); | |
3240 | } | |
3241 | ||
919ba009 | 3242 | if (hf == sm->ssl_connect) |
0f113f3e | 3243 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3244 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3245 | s->handshake_func = meth->ssl_accept; |
3246 | } | |
26a7d938 | 3247 | return ret; |
0f113f3e MC |
3248 | } |
3249 | ||
3250 | int SSL_get_error(const SSL *s, int i) | |
3251 | { | |
3252 | int reason; | |
3253 | unsigned long l; | |
3254 | BIO *bio; | |
3255 | ||
3256 | if (i > 0) | |
26a7d938 | 3257 | return SSL_ERROR_NONE; |
0f113f3e MC |
3258 | |
3259 | /* | |
3260 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3261 | * where we do encode the error | |
3262 | */ | |
3263 | if ((l = ERR_peek_error()) != 0) { | |
3264 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
26a7d938 | 3265 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3266 | else |
26a7d938 | 3267 | return SSL_ERROR_SSL; |
0f113f3e MC |
3268 | } |
3269 | ||
8051ab2b MC |
3270 | if (SSL_want_read(s)) { |
3271 | bio = SSL_get_rbio(s); | |
3272 | if (BIO_should_read(bio)) | |
26a7d938 | 3273 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3274 | else if (BIO_should_write(bio)) |
3275 | /* | |
3276 | * This one doesn't make too much sense ... We never try to write | |
3277 | * to the rbio, and an application program where rbio and wbio | |
3278 | * are separate couldn't even know what it should wait for. | |
3279 | * However if we ever set s->rwstate incorrectly (so that we have | |
3280 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3281 | * wbio *are* the same, this test works around that bug; so it | |
3282 | * might be safer to keep it. | |
3283 | */ | |
26a7d938 | 3284 | return SSL_ERROR_WANT_WRITE; |
8051ab2b MC |
3285 | else if (BIO_should_io_special(bio)) { |
3286 | reason = BIO_get_retry_reason(bio); | |
3287 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3288 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3289 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3290 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3291 | else |
26a7d938 | 3292 | return SSL_ERROR_SYSCALL; /* unknown */ |
0f113f3e | 3293 | } |
8051ab2b | 3294 | } |
0f113f3e | 3295 | |
8051ab2b | 3296 | if (SSL_want_write(s)) { |
69687aa8 | 3297 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3298 | bio = s->wbio; |
3299 | if (BIO_should_write(bio)) | |
26a7d938 | 3300 | return SSL_ERROR_WANT_WRITE; |
8051ab2b | 3301 | else if (BIO_should_read(bio)) |
2e7dc7cd | 3302 | /* |
8051ab2b | 3303 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3304 | */ |
26a7d938 | 3305 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3306 | else if (BIO_should_io_special(bio)) { |
3307 | reason = BIO_get_retry_reason(bio); | |
3308 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3309 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3310 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3311 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3312 | else |
26a7d938 | 3313 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3314 | } |
07bbc92c | 3315 | } |
6b1bb98f | 3316 | if (SSL_want_x509_lookup(s)) |
26a7d938 | 3317 | return SSL_ERROR_WANT_X509_LOOKUP; |
6b1bb98f | 3318 | if (SSL_want_async(s)) |
8051ab2b | 3319 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3320 | if (SSL_want_async_job(s)) |
8051ab2b | 3321 | return SSL_ERROR_WANT_ASYNC_JOB; |
a9c0d8be DB |
3322 | if (SSL_want_client_hello_cb(s)) |
3323 | return SSL_ERROR_WANT_CLIENT_HELLO_CB; | |
8051ab2b MC |
3324 | |
3325 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3326 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
26a7d938 | 3327 | return SSL_ERROR_ZERO_RETURN; |
8051ab2b | 3328 | |
26a7d938 | 3329 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3330 | } |
d02b48c6 | 3331 | |
add2f5ca MC |
3332 | static int ssl_do_handshake_intern(void *vargs) |
3333 | { | |
3334 | struct ssl_async_args *args; | |
3335 | SSL *s; | |
3336 | ||
3337 | args = (struct ssl_async_args *)vargs; | |
3338 | s = args->s; | |
3339 | ||
3340 | return s->handshake_func(s); | |
3341 | } | |
3342 | ||
4f43d0e7 | 3343 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3344 | { |
3345 | int ret = 1; | |
3346 | ||
3347 | if (s->handshake_func == NULL) { | |
3348 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3349 | return -1; |
0f113f3e MC |
3350 | } |
3351 | ||
3eaa4170 | 3352 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3353 | |
c7f47786 | 3354 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e | 3355 | |
190b9a03 PY |
3356 | if (SSL_is_server(s)) { |
3357 | /* clear SNI settings at server-side */ | |
3358 | OPENSSL_free(s->ext.hostname); | |
3359 | s->ext.hostname = NULL; | |
3360 | } | |
3361 | ||
0f113f3e | 3362 | if (SSL_in_init(s) || SSL_in_before(s)) { |
e8aa8b6c | 3363 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3364 | struct ssl_async_args args; |
3365 | ||
3366 | args.s = s; | |
3367 | ||
7fecbf6f | 3368 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3369 | } else { |
3370 | ret = s->handshake_func(s); | |
3371 | } | |
0f113f3e | 3372 | } |
add2f5ca | 3373 | return ret; |
0f113f3e MC |
3374 | } |
3375 | ||
4f43d0e7 | 3376 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3377 | { |
3378 | s->server = 1; | |
3379 | s->shutdown = 0; | |
fe3a3291 | 3380 | ossl_statem_clear(s); |
0f113f3e | 3381 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3382 | clear_ciphers(s); |
0f113f3e | 3383 | } |
d02b48c6 | 3384 | |
4f43d0e7 | 3385 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3386 | { |
3387 | s->server = 0; | |
3388 | s->shutdown = 0; | |
fe3a3291 | 3389 | ossl_statem_clear(s); |
0f113f3e | 3390 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3391 | clear_ciphers(s); |
0f113f3e | 3392 | } |
d02b48c6 | 3393 | |
4f43d0e7 | 3394 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3395 | { |
3396 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3397 | return 0; |
0f113f3e | 3398 | } |
d02b48c6 | 3399 | |
41a15c4f | 3400 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3401 | { |
3402 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3403 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3404 | return 0; |
0f113f3e | 3405 | } |
41a15c4f | 3406 | |
0821bcd4 | 3407 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3408 | { |
26a7d938 | 3409 | return 0; |
0f113f3e | 3410 | } |
0821bcd4 | 3411 | |
2b8fa1d5 | 3412 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3413 | { |
3414 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3415 | return NULL; |
0f113f3e | 3416 | } |
d02b48c6 | 3417 | |
3eb2aff4 | 3418 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3419 | { |
2abacef1 MC |
3420 | switch(version) |
3421 | { | |
3422 | case TLS1_3_VERSION: | |
582a17d6 | 3423 | return "TLSv1.3"; |
2abacef1 MC |
3424 | |
3425 | case TLS1_2_VERSION: | |
7d650072 | 3426 | return "TLSv1.2"; |
2abacef1 MC |
3427 | |
3428 | case TLS1_1_VERSION: | |
7d650072 | 3429 | return "TLSv1.1"; |
2abacef1 MC |
3430 | |
3431 | case TLS1_VERSION: | |
ee3a6c64 | 3432 | return "TLSv1"; |
2abacef1 MC |
3433 | |
3434 | case SSL3_VERSION: | |
7d650072 | 3435 | return "SSLv3"; |
2abacef1 MC |
3436 | |
3437 | case DTLS1_BAD_VER: | |
7d650072 | 3438 | return "DTLSv0.9"; |
2abacef1 MC |
3439 | |
3440 | case DTLS1_VERSION: | |
7d650072 | 3441 | return "DTLSv1"; |
2abacef1 MC |
3442 | |
3443 | case DTLS1_2_VERSION: | |
7d650072 | 3444 | return "DTLSv1.2"; |
2abacef1 MC |
3445 | |
3446 | default: | |
3447 | return "unknown"; | |
3448 | } | |
0f113f3e | 3449 | } |
d02b48c6 | 3450 | |
7d650072 KR |
3451 | const char *SSL_get_version(const SSL *s) |
3452 | { | |
3eb2aff4 | 3453 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3454 | } |
3455 | ||
4f43d0e7 | 3456 | SSL *SSL_dup(SSL *s) |
0f113f3e MC |
3457 | { |
3458 | STACK_OF(X509_NAME) *sk; | |
3459 | X509_NAME *xn; | |
3460 | SSL *ret; | |
3461 | int i; | |
3462 | ||
919ba009 VD |
3463 | /* If we're not quiescent, just up_ref! */ |
3464 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3465 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3466 | return s; |
3467 | } | |
3468 | ||
3469 | /* | |
3470 | * Otherwise, copy configuration state, and session if set. | |
3471 | */ | |
0f113f3e | 3472 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
26a7d938 | 3473 | return NULL; |
0f113f3e | 3474 | |
0f113f3e | 3475 | if (s->session != NULL) { |
919ba009 VD |
3476 | /* |
3477 | * Arranges to share the same session via up_ref. This "copies" | |
3478 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3479 | */ | |
61986d32 | 3480 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3481 | goto err; |
0f113f3e MC |
3482 | } else { |
3483 | /* | |
3484 | * No session has been established yet, so we have to expect that | |
3485 | * s->cert or ret->cert will be changed later -- they should not both | |
3486 | * point to the same object, and thus we can't use | |
3487 | * SSL_copy_session_id. | |
3488 | */ | |
919ba009 VD |
3489 | if (!SSL_set_ssl_method(ret, s->method)) |
3490 | goto err; | |
0f113f3e MC |
3491 | |
3492 | if (s->cert != NULL) { | |
e0e920b1 | 3493 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3494 | ret->cert = ssl_cert_dup(s->cert); |
3495 | if (ret->cert == NULL) | |
3496 | goto err; | |
3497 | } | |
3498 | ||
348240c6 MC |
3499 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3500 | (int)s->sid_ctx_length)) | |
69f68237 | 3501 | goto err; |
0f113f3e MC |
3502 | } |
3503 | ||
9f6b22b8 VD |
3504 | if (!ssl_dane_dup(ret, s)) |
3505 | goto err; | |
919ba009 | 3506 | ret->version = s->version; |
0f113f3e MC |
3507 | ret->options = s->options; |
3508 | ret->mode = s->mode; | |
3509 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3510 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3511 | ret->msg_callback = s->msg_callback; | |
3512 | ret->msg_callback_arg = s->msg_callback_arg; | |
3513 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3514 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3515 | ret->generate_session_id = s->generate_session_id; | |
3516 | ||
3517 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3518 | ||
0f113f3e MC |
3519 | /* copy app data, a little dangerous perhaps */ |
3520 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3521 | goto err; | |
3522 | ||
3523 | /* setup rbio, and wbio */ | |
3524 | if (s->rbio != NULL) { | |
3525 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3526 | goto err; | |
3527 | } | |
3528 | if (s->wbio != NULL) { | |
3529 | if (s->wbio != s->rbio) { | |
3530 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3531 | goto err; | |
65e2d672 MC |
3532 | } else { |
3533 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3534 | ret->wbio = ret->rbio; |
65e2d672 | 3535 | } |
0f113f3e | 3536 | } |
919ba009 | 3537 | |
0f113f3e | 3538 | ret->server = s->server; |
919ba009 VD |
3539 | if (s->handshake_func) { |
3540 | if (s->server) | |
3541 | SSL_set_accept_state(ret); | |
3542 | else | |
3543 | SSL_set_connect_state(ret); | |
3544 | } | |
0f113f3e | 3545 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3546 | ret->hit = s->hit; |
3547 | ||
a974e64a MC |
3548 | ret->default_passwd_callback = s->default_passwd_callback; |
3549 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3550 | ||
0f113f3e MC |
3551 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3552 | ||
3553 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3554 | if (s->cipher_list != NULL) { | |
3555 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3556 | goto err; | |
3557 | } | |
3558 | if (s->cipher_list_by_id != NULL) | |
3559 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3560 | == NULL) | |
3561 | goto err; | |
3562 | ||
3563 | /* Dup the client_CA list */ | |
fa7c2637 DSH |
3564 | if (s->ca_names != NULL) { |
3565 | if ((sk = sk_X509_NAME_dup(s->ca_names)) == NULL) | |
0f113f3e | 3566 | goto err; |
fa7c2637 | 3567 | ret->ca_names = sk; |
0f113f3e MC |
3568 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { |
3569 | xn = sk_X509_NAME_value(sk, i); | |
3570 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
3571 | X509_NAME_free(xn); | |
3572 | goto err; | |
3573 | } | |
3574 | } | |
3575 | } | |
66696478 | 3576 | return ret; |
0f113f3e | 3577 | |
0f113f3e | 3578 | err: |
66696478 RS |
3579 | SSL_free(ret); |
3580 | return NULL; | |
0f113f3e | 3581 | } |
d02b48c6 | 3582 | |
4f43d0e7 | 3583 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3584 | { |
3585 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3586 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3587 | s->enc_read_ctx = NULL; |
3588 | } | |
3589 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3590 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3591 | s->enc_write_ctx = NULL; |
3592 | } | |
09b6c2ef | 3593 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3594 | COMP_CTX_free(s->expand); |
3595 | s->expand = NULL; | |
3596 | COMP_CTX_free(s->compress); | |
3597 | s->compress = NULL; | |
0f113f3e MC |
3598 | #endif |
3599 | } | |
d02b48c6 | 3600 | |
0821bcd4 | 3601 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3602 | { |
3603 | if (s->cert != NULL) | |
26a7d938 | 3604 | return s->cert->key->x509; |
0f113f3e | 3605 | else |
26a7d938 | 3606 | return NULL; |
0f113f3e | 3607 | } |
d02b48c6 | 3608 | |
a25f9adc | 3609 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3610 | { |
3611 | if (s->cert != NULL) | |
26a7d938 | 3612 | return s->cert->key->privatekey; |
0f113f3e | 3613 | else |
26a7d938 | 3614 | return NULL; |
0f113f3e | 3615 | } |
d02b48c6 | 3616 | |
a25f9adc | 3617 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3618 | { |
3619 | if (ctx->cert != NULL) | |
3620 | return ctx->cert->key->x509; | |
3621 | else | |
3622 | return NULL; | |
3623 | } | |
a25f9adc DSH |
3624 | |
3625 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3626 | { |
3627 | if (ctx->cert != NULL) | |
3628 | return ctx->cert->key->privatekey; | |
3629 | else | |
3630 | return NULL; | |
3631 | } | |
a25f9adc | 3632 | |
babb3798 | 3633 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3634 | { |
3635 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
26a7d938 K |
3636 | return s->session->cipher; |
3637 | return NULL; | |
0f113f3e MC |
3638 | } |
3639 | ||
0aed6e44 BK |
3640 | const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s) |
3641 | { | |
3642 | return s->s3->tmp.new_cipher; | |
3643 | } | |
3644 | ||
377dcdba | 3645 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3646 | { |
9a555706 RS |
3647 | #ifndef OPENSSL_NO_COMP |
3648 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3649 | #else | |
3650 | return NULL; | |
3651 | #endif | |
0f113f3e | 3652 | } |
377dcdba RL |
3653 | |
3654 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3655 | { |
9a555706 RS |
3656 | #ifndef OPENSSL_NO_COMP |
3657 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3658 | #else | |
3659 | return NULL; | |
0f113f3e | 3660 | #endif |
9a555706 | 3661 | } |
0f113f3e | 3662 | |
46417569 | 3663 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3664 | { |
3665 | BIO *bbio; | |
3666 | ||
2e7dc7cd MC |
3667 | if (s->bbio != NULL) { |
3668 | /* Already buffered. */ | |
3669 | return 1; | |
0f113f3e | 3670 | } |
46417569 | 3671 | |
2e7dc7cd MC |
3672 | bbio = BIO_new(BIO_f_buffer()); |
3673 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3674 | BIO_free(bbio); | |
0f113f3e | 3675 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3676 | return 0; |
0f113f3e | 3677 | } |
2e7dc7cd MC |
3678 | s->bbio = bbio; |
3679 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3680 | |
3681 | return 1; | |
0f113f3e | 3682 | } |
413c4f45 | 3683 | |
b77f3ed1 | 3684 | int ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3685 | { |
62adbcee | 3686 | /* callers ensure s is never null */ |
0f113f3e | 3687 | if (s->bbio == NULL) |
b77f3ed1 | 3688 | return 1; |
0f113f3e | 3689 | |
2e7dc7cd | 3690 | s->wbio = BIO_pop(s->wbio); |
b77f3ed1 MC |
3691 | if (!ossl_assert(s->wbio != NULL)) |
3692 | return 0; | |
0f113f3e MC |
3693 | BIO_free(s->bbio); |
3694 | s->bbio = NULL; | |
b77f3ed1 MC |
3695 | |
3696 | return 1; | |
0f113f3e MC |
3697 | } |
3698 | ||
3699 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3700 | { | |
3701 | ctx->quiet_shutdown = mode; | |
3702 | } | |
58964a49 | 3703 | |
0821bcd4 | 3704 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e | 3705 | { |
26a7d938 | 3706 | return ctx->quiet_shutdown; |
0f113f3e | 3707 | } |
58964a49 | 3708 | |
0f113f3e MC |
3709 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3710 | { | |
3711 | s->quiet_shutdown = mode; | |
3712 | } | |
58964a49 | 3713 | |
0821bcd4 | 3714 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e | 3715 | { |
26a7d938 | 3716 | return s->quiet_shutdown; |
0f113f3e | 3717 | } |
58964a49 | 3718 | |
0f113f3e MC |
3719 | void SSL_set_shutdown(SSL *s, int mode) |
3720 | { | |
3721 | s->shutdown = mode; | |
3722 | } | |
58964a49 | 3723 | |
0821bcd4 | 3724 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 3725 | { |
6546e9b2 | 3726 | return s->shutdown; |
0f113f3e | 3727 | } |
58964a49 | 3728 | |
0821bcd4 | 3729 | int SSL_version(const SSL *s) |
0f113f3e | 3730 | { |
6546e9b2 AG |
3731 | return s->version; |
3732 | } | |
3733 | ||
3734 | int SSL_client_version(const SSL *s) | |
3735 | { | |
3736 | return s->client_version; | |
0f113f3e | 3737 | } |
58964a49 | 3738 | |
0821bcd4 | 3739 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 3740 | { |
6546e9b2 | 3741 | return ssl->ctx; |
0f113f3e MC |
3742 | } |
3743 | ||
3744 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3745 | { | |
24a0d393 | 3746 | CERT *new_cert; |
0f113f3e MC |
3747 | if (ssl->ctx == ctx) |
3748 | return ssl->ctx; | |
0f113f3e | 3749 | if (ctx == NULL) |
222da979 | 3750 | ctx = ssl->session_ctx; |
24a0d393 KR |
3751 | new_cert = ssl_cert_dup(ctx->cert); |
3752 | if (new_cert == NULL) { | |
3753 | return NULL; | |
0f113f3e | 3754 | } |
21181889 MC |
3755 | |
3756 | if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) { | |
3757 | ssl_cert_free(new_cert); | |
3758 | return NULL; | |
3759 | } | |
3760 | ||
24a0d393 KR |
3761 | ssl_cert_free(ssl->cert); |
3762 | ssl->cert = new_cert; | |
0f113f3e MC |
3763 | |
3764 | /* | |
3765 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3766 | * so setter APIs must prevent invalid lengths from entering the system. | |
3767 | */ | |
380a522f MC |
3768 | if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx))) |
3769 | return NULL; | |
0f113f3e MC |
3770 | |
3771 | /* | |
3772 | * If the session ID context matches that of the parent SSL_CTX, | |
3773 | * inherit it from the new SSL_CTX as well. If however the context does | |
3774 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3775 | * leave it unchanged. | |
3776 | */ | |
3777 | if ((ssl->ctx != NULL) && | |
3778 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3779 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3780 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3781 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3782 | } | |
3783 | ||
16203f7b | 3784 | SSL_CTX_up_ref(ctx); |
a230b26e | 3785 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
3786 | ssl->ctx = ctx; |
3787 | ||
16203f7b | 3788 | return ssl->ctx; |
0f113f3e | 3789 | } |
ed3883d2 | 3790 | |
4f43d0e7 | 3791 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e | 3792 | { |
26a7d938 | 3793 | return X509_STORE_set_default_paths(ctx->cert_store); |
0f113f3e | 3794 | } |
58964a49 | 3795 | |
d84a7b20 MC |
3796 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
3797 | { | |
3798 | X509_LOOKUP *lookup; | |
3799 | ||
3800 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
3801 | if (lookup == NULL) | |
3802 | return 0; | |
3803 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3804 | ||
3805 | /* Clear any errors if the default directory does not exist */ | |
3806 | ERR_clear_error(); | |
3807 | ||
3808 | return 1; | |
3809 | } | |
3810 | ||
3811 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
3812 | { | |
3813 | X509_LOOKUP *lookup; | |
3814 | ||
3815 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
3816 | if (lookup == NULL) | |
3817 | return 0; | |
3818 | ||
3819 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
3820 | ||
3821 | /* Clear any errors if the default file does not exist */ | |
3822 | ERR_clear_error(); | |
3823 | ||
3824 | return 1; | |
3825 | } | |
3826 | ||
303c0028 | 3827 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
3828 | const char *CApath) |
3829 | { | |
26a7d938 | 3830 | return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath); |
0f113f3e | 3831 | } |
58964a49 | 3832 | |
45d87a1f | 3833 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
3834 | void (*cb) (const SSL *ssl, int type, int val)) |
3835 | { | |
3836 | ssl->info_callback = cb; | |
3837 | } | |
3838 | ||
3839 | /* | |
3840 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3841 | * pointer. | |
3842 | */ | |
3843 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3844 | int /* type */ , | |
3845 | int /* val */ ) { | |
3846 | return ssl->info_callback; | |
3847 | } | |
58964a49 | 3848 | |
0f113f3e MC |
3849 | void SSL_set_verify_result(SSL *ssl, long arg) |
3850 | { | |
3851 | ssl->verify_result = arg; | |
3852 | } | |
58964a49 | 3853 | |
0821bcd4 | 3854 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e | 3855 | { |
26a7d938 | 3856 | return ssl->verify_result; |
0f113f3e MC |
3857 | } |
3858 | ||
d9f1c639 | 3859 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3860 | { |
6b8f5d0d | 3861 | if (outlen == 0) |
858618e7 NM |
3862 | return sizeof(ssl->s3->client_random); |
3863 | if (outlen > sizeof(ssl->s3->client_random)) | |
3864 | outlen = sizeof(ssl->s3->client_random); | |
3865 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 3866 | return outlen; |
858618e7 NM |
3867 | } |
3868 | ||
d9f1c639 | 3869 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 3870 | { |
6b8f5d0d | 3871 | if (outlen == 0) |
858618e7 NM |
3872 | return sizeof(ssl->s3->server_random); |
3873 | if (outlen > sizeof(ssl->s3->server_random)) | |
3874 | outlen = sizeof(ssl->s3->server_random); | |
3875 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 3876 | return outlen; |
858618e7 NM |
3877 | } |
3878 | ||
d9f1c639 | 3879 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 3880 | unsigned char *out, size_t outlen) |
858618e7 | 3881 | { |
d9f1c639 MC |
3882 | if (outlen == 0) |
3883 | return session->master_key_length; | |
8c1a5343 | 3884 | if (outlen > session->master_key_length) |
858618e7 NM |
3885 | outlen = session->master_key_length; |
3886 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 3887 | return outlen; |
858618e7 NM |
3888 | } |
3889 | ||
725b0f1e | 3890 | int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in, |
911d63f2 MC |
3891 | size_t len) |
3892 | { | |
3893 | if (len > sizeof(sess->master_key)) | |
3894 | return 0; | |
3895 | ||
3896 | memcpy(sess->master_key, in, len); | |
3897 | sess->master_key_length = len; | |
911d63f2 MC |
3898 | return 1; |
3899 | } | |
3900 | ||
3901 | ||
0f113f3e MC |
3902 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
3903 | { | |
26a7d938 | 3904 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
3905 | } |
3906 | ||
3907 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3908 | { | |
26a7d938 | 3909 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e MC |
3910 | } |
3911 | ||
0f113f3e MC |
3912 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
3913 | { | |
26a7d938 | 3914 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
3915 | } |
3916 | ||
3917 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3918 | { | |
26a7d938 | 3919 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e | 3920 | } |
58964a49 | 3921 | |
0821bcd4 | 3922 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e | 3923 | { |
26a7d938 | 3924 | return ctx->cert_store; |
0f113f3e | 3925 | } |
413c4f45 | 3926 | |
0f113f3e MC |
3927 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3928 | { | |
222561fe | 3929 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
3930 | ctx->cert_store = store; |
3931 | } | |
413c4f45 | 3932 | |
b50052db TS |
3933 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3934 | { | |
3935 | if (store != NULL) | |
3936 | X509_STORE_up_ref(store); | |
3937 | SSL_CTX_set_cert_store(ctx, store); | |
3938 | } | |
3939 | ||
0821bcd4 | 3940 | int SSL_want(const SSL *s) |
0f113f3e | 3941 | { |
26a7d938 | 3942 | return s->rwstate; |
0f113f3e | 3943 | } |
413c4f45 | 3944 | |
0f113f3e | 3945 | /** |
4f43d0e7 BL |
3946 | * \brief Set the callback for generating temporary DH keys. |
3947 | * \param ctx the SSL context. | |
3948 | * \param dh the callback | |
3949 | */ | |
3950 | ||
bc36ee62 | 3951 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
3952 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3953 | DH *(*dh) (SSL *ssl, int is_export, | |
3954 | int keylength)) | |
3955 | { | |
3956 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3957 | } | |
f8c3c05d | 3958 | |
0f113f3e MC |
3959 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3960 | int keylength)) | |
3961 | { | |
3962 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3963 | } | |
79df9d62 | 3964 | #endif |
15d21c2d | 3965 | |
ddac1974 NL |
3966 | #ifndef OPENSSL_NO_PSK |
3967 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
3968 | { |
3969 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 3970 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
3971 | return 0; |
3972 | } | |
df6da24b | 3973 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 3974 | if (identity_hint != NULL) { |
7644a9ae | 3975 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3976 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3977 | return 0; |
3978 | } else | |
df6da24b | 3979 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3980 | return 1; |
3981 | } | |
ddac1974 NL |
3982 | |
3983 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
3984 | { |
3985 | if (s == NULL) | |
3986 | return 0; | |
3987 | ||
0f113f3e MC |
3988 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
3989 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3990 | return 0; | |
3991 | } | |
df6da24b | 3992 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 3993 | if (identity_hint != NULL) { |
7644a9ae | 3994 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 3995 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
3996 | return 0; |
3997 | } else | |
df6da24b | 3998 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
3999 | return 1; |
4000 | } | |
ddac1974 NL |
4001 | |
4002 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
4003 | { |
4004 | if (s == NULL || s->session == NULL) | |
4005 | return NULL; | |
26a7d938 | 4006 | return s->session->psk_identity_hint; |
0f113f3e | 4007 | } |
ddac1974 NL |
4008 | |
4009 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
4010 | { |
4011 | if (s == NULL || s->session == NULL) | |
4012 | return NULL; | |
26a7d938 | 4013 | return s->session->psk_identity; |
0f113f3e | 4014 | } |
7806f3dd | 4015 | |
8cbfcc70 | 4016 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4017 | { |
4018 | s->psk_client_callback = cb; | |
4019 | } | |
7806f3dd | 4020 | |
8cbfcc70 | 4021 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4022 | { |
4023 | ctx->psk_client_callback = cb; | |
4024 | } | |
7806f3dd | 4025 | |
8cbfcc70 | 4026 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4027 | { |
4028 | s->psk_server_callback = cb; | |
4029 | } | |
7806f3dd | 4030 | |
8cbfcc70 | 4031 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4032 | { |
4033 | ctx->psk_server_callback = cb; | |
4034 | } | |
4035 | #endif | |
4036 | ||
f46184bd MC |
4037 | void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb) |
4038 | { | |
4039 | s->psk_find_session_cb = cb; | |
4040 | } | |
4041 | ||
4042 | void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx, | |
4043 | SSL_psk_find_session_cb_func cb) | |
4044 | { | |
4045 | ctx->psk_find_session_cb = cb; | |
4046 | } | |
4047 | ||
4048 | void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) | |
4049 | { | |
4050 | s->psk_use_session_cb = cb; | |
4051 | } | |
4052 | ||
4053 | void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx, | |
4054 | SSL_psk_use_session_cb_func cb) | |
4055 | { | |
4056 | ctx->psk_use_session_cb = cb; | |
4057 | } | |
4058 | ||
0f113f3e MC |
4059 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, |
4060 | void (*cb) (int write_p, int version, | |
4061 | int content_type, const void *buf, | |
4062 | size_t len, SSL *ssl, void *arg)) | |
4063 | { | |
4064 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4065 | } | |
4066 | ||
4067 | void SSL_set_msg_callback(SSL *ssl, | |
4068 | void (*cb) (int write_p, int version, | |
4069 | int content_type, const void *buf, | |
4070 | size_t len, SSL *ssl, void *arg)) | |
4071 | { | |
4072 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4073 | } | |
a661b653 | 4074 | |
7c2d4fee | 4075 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
4076 | int (*cb) (SSL *ssl, |
4077 | int | |
4078 | is_forward_secure)) | |
4079 | { | |
4080 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4081 | (void (*)(void))cb); | |
4082 | } | |
4083 | ||
7c2d4fee | 4084 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
4085 | int (*cb) (SSL *ssl, |
4086 | int is_forward_secure)) | |
4087 | { | |
4088 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4089 | (void (*)(void))cb); | |
4090 | } | |
4091 | ||
c649d10d TS |
4092 | void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx, |
4093 | size_t (*cb) (SSL *ssl, int type, | |
4094 | size_t len, void *arg)) | |
4095 | { | |
4096 | ctx->record_padding_cb = cb; | |
4097 | } | |
4098 | ||
4099 | void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg) | |
4100 | { | |
4101 | ctx->record_padding_arg = arg; | |
4102 | } | |
4103 | ||
4104 | void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX *ctx) | |
4105 | { | |
4106 | return ctx->record_padding_arg; | |
4107 | } | |
4108 | ||
4109 | int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size) | |
4110 | { | |
4111 | /* block size of 0 or 1 is basically no padding */ | |
4112 | if (block_size == 1) | |
4113 | ctx->block_padding = 0; | |
4114 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4115 | ctx->block_padding = block_size; | |
4116 | else | |
4117 | return 0; | |
4118 | return 1; | |
4119 | } | |
4120 | ||
4121 | void SSL_set_record_padding_callback(SSL *ssl, | |
4122 | size_t (*cb) (SSL *ssl, int type, | |
4123 | size_t len, void *arg)) | |
4124 | { | |
4125 | ssl->record_padding_cb = cb; | |
4126 | } | |
4127 | ||
4128 | void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg) | |
4129 | { | |
4130 | ssl->record_padding_arg = arg; | |
4131 | } | |
4132 | ||
4133 | void *SSL_get_record_padding_callback_arg(SSL *ssl) | |
4134 | { | |
4135 | return ssl->record_padding_arg; | |
4136 | } | |
4137 | ||
4138 | int SSL_set_block_padding(SSL *ssl, size_t block_size) | |
4139 | { | |
4140 | /* block size of 0 or 1 is basically no padding */ | |
4141 | if (block_size == 1) | |
4142 | ssl->block_padding = 0; | |
4143 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4144 | ssl->block_padding = block_size; | |
4145 | else | |
4146 | return 0; | |
4147 | return 1; | |
4148 | } | |
4149 | ||
0f113f3e MC |
4150 | /* |
4151 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 4152 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 4153 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 4154 | * Returns the newly allocated ctx; |
8671b898 | 4155 | */ |
b948e2c5 | 4156 | |
0f113f3e | 4157 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 4158 | { |
0f113f3e | 4159 | ssl_clear_hash_ctx(hash); |
bfb0641f | 4160 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 4161 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 4162 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
4163 | *hash = NULL; |
4164 | return NULL; | |
4165 | } | |
0f113f3e | 4166 | return *hash; |
b948e2c5 | 4167 | } |
0f113f3e MC |
4168 | |
4169 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
4170 | { |
4171 | ||
0d9824c1 | 4172 | EVP_MD_CTX_free(*hash); |
0f113f3e | 4173 | *hash = NULL; |
b948e2c5 | 4174 | } |
a661b653 | 4175 | |
48fbcbac | 4176 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
4177 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
4178 | size_t *hashlen) | |
48fbcbac | 4179 | { |
6e59a892 | 4180 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 4181 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
4182 | int hashleni = EVP_MD_CTX_size(hdgst); |
4183 | int ret = 0; | |
4184 | ||
4185 | if (hashleni < 0 || (size_t)hashleni > outlen) | |
28ba2541 | 4186 | goto err; |
8c1a5343 | 4187 | |
bfb0641f | 4188 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 4189 | if (ctx == NULL) |
6e59a892 | 4190 | goto err; |
8c1a5343 | 4191 | |
6e59a892 RL |
4192 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
4193 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) | |
8c1a5343 MC |
4194 | goto err; |
4195 | ||
4196 | *hashlen = hashleni; | |
4197 | ||
4198 | ret = 1; | |
48fbcbac | 4199 | err: |
bfb0641f | 4200 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
4201 | return ret; |
4202 | } | |
4203 | ||
b577fd0b | 4204 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
4205 | { |
4206 | return s->hit; | |
4207 | } | |
08557cf2 | 4208 | |
69443116 | 4209 | int SSL_is_server(const SSL *s) |
0f113f3e MC |
4210 | { |
4211 | return s->server; | |
4212 | } | |
87adf1fa | 4213 | |
47153c72 RS |
4214 | #if OPENSSL_API_COMPAT < 0x10100000L |
4215 | void SSL_set_debug(SSL *s, int debug) | |
4216 | { | |
4217 | /* Old function was do-nothing anyway... */ | |
4218 | (void)s; | |
4219 | (void)debug; | |
4220 | } | |
4221 | #endif | |
4222 | ||
b362ccab | 4223 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4224 | { |
4225 | s->cert->sec_level = level; | |
4226 | } | |
b362ccab DSH |
4227 | |
4228 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4229 | { |
4230 | return s->cert->sec_level; | |
4231 | } | |
b362ccab | 4232 | |
0f113f3e | 4233 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4234 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4235 | int op, int bits, int nid, | |
4236 | void *other, void *ex)) | |
0f113f3e MC |
4237 | { |
4238 | s->cert->sec_cb = cb; | |
4239 | } | |
b362ccab | 4240 | |
a230b26e EK |
4241 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4242 | const SSL_CTX *ctx, int op, | |
4243 | int bits, int nid, void *other, | |
4244 | void *ex) { | |
0f113f3e MC |
4245 | return s->cert->sec_cb; |
4246 | } | |
b362ccab DSH |
4247 | |
4248 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4249 | { |
4250 | s->cert->sec_ex = ex; | |
4251 | } | |
b362ccab DSH |
4252 | |
4253 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4254 | { |
4255 | return s->cert->sec_ex; | |
4256 | } | |
b362ccab DSH |
4257 | |
4258 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4259 | { |
4260 | ctx->cert->sec_level = level; | |
4261 | } | |
b362ccab DSH |
4262 | |
4263 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4264 | { |
4265 | return ctx->cert->sec_level; | |
4266 | } | |
b362ccab | 4267 | |
0f113f3e | 4268 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4269 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4270 | int op, int bits, int nid, | |
4271 | void *other, void *ex)) | |
0f113f3e MC |
4272 | { |
4273 | ctx->cert->sec_cb = cb; | |
4274 | } | |
b362ccab | 4275 | |
e4646a89 KR |
4276 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4277 | const SSL_CTX *ctx, | |
0f113f3e MC |
4278 | int op, int bits, |
4279 | int nid, | |
4280 | void *other, | |
4281 | void *ex) { | |
4282 | return ctx->cert->sec_cb; | |
4283 | } | |
b362ccab DSH |
4284 | |
4285 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4286 | { |
4287 | ctx->cert->sec_ex = ex; | |
4288 | } | |
b362ccab DSH |
4289 | |
4290 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4291 | { |
4292 | return ctx->cert->sec_ex; | |
4293 | } | |
b362ccab | 4294 | |
8106cb8b VD |
4295 | /* |
4296 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4297 | * can return unsigned long, instead of the generic long return value from the | |
4298 | * control interface. | |
4299 | */ | |
4300 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4301 | { | |
4302 | return ctx->options; | |
4303 | } | |
a230b26e EK |
4304 | |
4305 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4306 | { |
4307 | return s->options; | |
4308 | } | |
a230b26e | 4309 | |
8106cb8b VD |
4310 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4311 | { | |
4312 | return ctx->options |= op; | |
4313 | } | |
a230b26e | 4314 | |
8106cb8b VD |
4315 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4316 | { | |
4317 | return s->options |= op; | |
4318 | } | |
a230b26e | 4319 | |
8106cb8b VD |
4320 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4321 | { | |
4322 | return ctx->options &= ~op; | |
4323 | } | |
a230b26e | 4324 | |
8106cb8b VD |
4325 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4326 | { | |
4327 | return s->options &= ~op; | |
4328 | } | |
4329 | ||
696178ed DSH |
4330 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4331 | { | |
4332 | return s->verified_chain; | |
4333 | } | |
4334 | ||
0f113f3e | 4335 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4336 | |
4337 | #ifndef OPENSSL_NO_CT | |
4338 | ||
4339 | /* | |
4340 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4341 | * The source of each SCT will be set to |origin|. | |
4342 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4343 | * the caller. | |
4344 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4345 | */ | |
a230b26e EK |
4346 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4347 | sct_source_t origin) | |
ed29e82a RP |
4348 | { |
4349 | int scts_moved = 0; | |
4350 | SCT *sct = NULL; | |
4351 | ||
4352 | if (*dst == NULL) { | |
4353 | *dst = sk_SCT_new_null(); | |
4354 | if (*dst == NULL) { | |
4355 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4356 | goto err; | |
4357 | } | |
4358 | } | |
4359 | ||
4360 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4361 | if (SCT_set_source(sct, origin) != 1) | |
4362 | goto err; | |
4363 | ||
4364 | if (sk_SCT_push(*dst, sct) <= 0) | |
4365 | goto err; | |
4366 | scts_moved += 1; | |
4367 | } | |
4368 | ||
4369 | return scts_moved; | |
a230b26e | 4370 | err: |
ed29e82a | 4371 | if (sct != NULL) |
a230b26e | 4372 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4373 | return -1; |
ed29e82a RP |
4374 | } |
4375 | ||
4376 | /* | |
a230b26e | 4377 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4378 | * Returns the number of SCTs extracted. |
a230b26e | 4379 | */ |
ed29e82a RP |
4380 | static int ct_extract_tls_extension_scts(SSL *s) |
4381 | { | |
4382 | int scts_extracted = 0; | |
4383 | ||
aff8c126 RS |
4384 | if (s->ext.scts != NULL) { |
4385 | const unsigned char *p = s->ext.scts; | |
4386 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4387 | |
4388 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4389 | ||
4390 | SCT_LIST_free(scts); | |
4391 | } | |
4392 | ||
4393 | return scts_extracted; | |
4394 | } | |
4395 | ||
4396 | /* | |
4397 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4398 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4399 | * Returns: | |
4400 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4401 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4402 | * - A negative integer if an error occurs. | |
4403 | */ | |
4404 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4405 | { | |
a230b26e | 4406 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4407 | int scts_extracted = 0; |
4408 | const unsigned char *p; | |
4409 | OCSP_BASICRESP *br = NULL; | |
4410 | OCSP_RESPONSE *rsp = NULL; | |
4411 | STACK_OF(SCT) *scts = NULL; | |
4412 | int i; | |
4413 | ||
aff8c126 | 4414 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4415 | goto err; |
4416 | ||
aff8c126 RS |
4417 | p = s->ext.ocsp.resp; |
4418 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4419 | if (rsp == NULL) |
4420 | goto err; | |
4421 | ||
4422 | br = OCSP_response_get1_basic(rsp); | |
4423 | if (br == NULL) | |
4424 | goto err; | |
4425 | ||
4426 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4427 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4428 | ||
4429 | if (single == NULL) | |
4430 | continue; | |
4431 | ||
a230b26e EK |
4432 | scts = |
4433 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4434 | scts_extracted = | |
4435 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4436 | if (scts_extracted < 0) |
4437 | goto err; | |
4438 | } | |
a230b26e | 4439 | err: |
ed29e82a RP |
4440 | SCT_LIST_free(scts); |
4441 | OCSP_BASICRESP_free(br); | |
4442 | OCSP_RESPONSE_free(rsp); | |
4443 | return scts_extracted; | |
a230b26e | 4444 | # else |
3e41ac35 MC |
4445 | /* Behave as if no OCSP response exists */ |
4446 | return 0; | |
a230b26e | 4447 | # endif |
ed29e82a RP |
4448 | } |
4449 | ||
4450 | /* | |
4451 | * Attempts to extract SCTs from the peer certificate. | |
4452 | * Return the number of SCTs extracted, or a negative integer if an error | |
4453 | * occurs. | |
4454 | */ | |
4455 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4456 | { | |
4457 | int scts_extracted = 0; | |
3f3c7d26 | 4458 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4459 | |
4460 | if (cert != NULL) { | |
4461 | STACK_OF(SCT) *scts = | |
4462 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4463 | ||
4464 | scts_extracted = | |
4465 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4466 | ||
4467 | SCT_LIST_free(scts); | |
4468 | } | |
4469 | ||
4470 | return scts_extracted; | |
4471 | } | |
4472 | ||
4473 | /* | |
4474 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4475 | * response (if it exists) and X509v3 extensions in the certificate. | |
4476 | * Returns NULL if an error occurs. | |
4477 | */ | |
4478 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4479 | { | |
4480 | if (!s->scts_parsed) { | |
4481 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4482 | ct_extract_ocsp_response_scts(s) < 0 || | |
4483 | ct_extract_x509v3_extension_scts(s) < 0) | |
4484 | goto err; | |
4485 | ||
4486 | s->scts_parsed = 1; | |
4487 | } | |
4488 | return s->scts; | |
a230b26e | 4489 | err: |
ed29e82a RP |
4490 | return NULL; |
4491 | } | |
4492 | ||
a230b26e | 4493 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4494 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4495 | { |
43341433 VD |
4496 | return 1; |
4497 | } | |
4498 | ||
a230b26e | 4499 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4500 | const STACK_OF(SCT) *scts, void *unused_arg) |
4501 | { | |
4502 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4503 | int i; | |
ed29e82a | 4504 | |
43341433 VD |
4505 | for (i = 0; i < count; ++i) { |
4506 | SCT *sct = sk_SCT_value(scts, i); | |
4507 | int status = SCT_get_validation_status(sct); | |
4508 | ||
4509 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4510 | return 1; | |
4511 | } | |
4512 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4513 | return 0; | |
4514 | } | |
4515 | ||
4516 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4517 | void *arg) | |
4518 | { | |
ed29e82a RP |
4519 | /* |
4520 | * Since code exists that uses the custom extension handler for CT, look | |
4521 | * for this and throw an error if they have already registered to use CT. | |
4522 | */ | |
4523 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4524 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4525 | { | |
ed29e82a RP |
4526 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4527 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4528 | return 0; |
ed29e82a RP |
4529 | } |
4530 | ||
ed29e82a | 4531 | if (callback != NULL) { |
a230b26e EK |
4532 | /* |
4533 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4534 | */ | |
ed29e82a | 4535 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4536 | return 0; |
ed29e82a RP |
4537 | } |
4538 | ||
43341433 VD |
4539 | s->ct_validation_callback = callback; |
4540 | s->ct_validation_callback_arg = arg; | |
4541 | ||
4542 | return 1; | |
ed29e82a RP |
4543 | } |
4544 | ||
43341433 | 4545 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4546 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4547 | { |
ed29e82a RP |
4548 | /* |
4549 | * Since code exists that uses the custom extension handler for CT, look for | |
4550 | * this and throw an error if they have already registered to use CT. | |
4551 | */ | |
4552 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4553 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4554 | { | |
ed29e82a RP |
4555 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4556 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4557 | return 0; |
ed29e82a RP |
4558 | } |
4559 | ||
4560 | ctx->ct_validation_callback = callback; | |
4561 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4562 | return 1; |
ed29e82a RP |
4563 | } |
4564 | ||
43341433 | 4565 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4566 | { |
43341433 | 4567 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4568 | } |
4569 | ||
43341433 | 4570 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4571 | { |
43341433 | 4572 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4573 | } |
4574 | ||
4d482ee2 | 4575 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4576 | { |
4577 | int ret = 0; | |
3f3c7d26 | 4578 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4579 | X509 *issuer; |
b9aec69a | 4580 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4581 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4582 | const STACK_OF(SCT) *scts; | |
4583 | ||
43341433 VD |
4584 | /* |
4585 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4586 | * skip SCT validation - just return success. Applications that continue | |
4587 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4588 | * certificates are outside the scope of the WebPKI and CT. | |
4589 | * | |
4590 | * The above exclusions notwithstanding the vast majority of peers will | |
4591 | * have rather ordinary certificate chains validated by typical | |
4592 | * applications that perform certificate verification and therefore will | |
4593 | * process SCTs when enabled. | |
4594 | */ | |
4595 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4596 | s->verify_result != X509_V_OK || | |
a230b26e | 4597 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4598 | return 1; |
4599 | ||
43341433 VD |
4600 | /* |
4601 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4602 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4603 | */ | |
4604 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4605 | switch (dane->mtlsa->usage) { | |
4606 | case DANETLS_USAGE_DANE_TA: | |
4607 | case DANETLS_USAGE_DANE_EE: | |
4608 | return 1; | |
4609 | } | |
ed29e82a RP |
4610 | } |
4611 | ||
ed29e82a RP |
4612 | ctx = CT_POLICY_EVAL_CTX_new(); |
4613 | if (ctx == NULL) { | |
4614 | SSLerr(SSL_F_SSL_VALIDATE_CT, ERR_R_MALLOC_FAILURE); | |
4615 | goto end; | |
4616 | } | |
4617 | ||
43341433 | 4618 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4619 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4620 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4621 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
6a71e06d RP |
4622 | CT_POLICY_EVAL_CTX_set_time( |
4623 | ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000); | |
ed29e82a RP |
4624 | |
4625 | scts = SSL_get0_peer_scts(s); | |
4626 | ||
43341433 VD |
4627 | /* |
4628 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4629 | * when some are invalid, and < 0 on various internal errors (out of | |
4630 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4631 | * reason to abort the handshake, that decision is up to the callback. | |
4632 | * Therefore, we error out only in the unexpected case that the return | |
4633 | * value is negative. | |
4634 | * | |
4635 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4636 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4637 | * status of each of the provided SCTs. So long as it correctly separates |
4638 | * the wheat from the chaff it should return success. Failure in this case | |
4639 | * ought to correspond to an inability to carry out its duties. | |
4640 | */ | |
4641 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
ed29e82a RP |
4642 | SSLerr(SSL_F_SSL_VALIDATE_CT, SSL_R_SCT_VERIFICATION_FAILED); |
4643 | goto end; | |
4644 | } | |
4645 | ||
4646 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4647 | if (ret < 0) | |
a230b26e | 4648 | ret = 0; /* This function returns 0 on failure */ |
ed29e82a | 4649 | |
a230b26e | 4650 | end: |
ed29e82a | 4651 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4652 | /* |
4653 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4654 | * failure return code here. Also the application may wish the complete | |
4655 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4656 | * checking the verification status of the completed connection. | |
4657 | * | |
4658 | * We therefore force a certificate verification failure which will be | |
4659 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4660 | * session. | |
4661 | * | |
4662 | * Note: the permissive callback is for information gathering only, always | |
4663 | * returns success, and does not affect verification status. Only the | |
4664 | * strict callback or a custom application-specified callback can trigger | |
4665 | * connection failure or record a verification error. | |
4666 | */ | |
4667 | if (ret <= 0) | |
4668 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
4669 | return ret; |
4670 | } | |
4671 | ||
43341433 VD |
4672 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
4673 | { | |
4674 | switch (validation_mode) { | |
4675 | default: | |
4676 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4677 | return 0; | |
4678 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4679 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
4680 | case SSL_CT_VALIDATION_STRICT: | |
4681 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
4682 | } | |
4683 | } | |
4684 | ||
4685 | int SSL_enable_ct(SSL *s, int validation_mode) | |
4686 | { | |
4687 | switch (validation_mode) { | |
4688 | default: | |
4689 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
4690 | return 0; | |
4691 | case SSL_CT_VALIDATION_PERMISSIVE: | |
4692 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
4693 | case SSL_CT_VALIDATION_STRICT: | |
4694 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
4695 | } | |
4696 | } | |
4697 | ||
ed29e82a RP |
4698 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
4699 | { | |
328f36c5 | 4700 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
4701 | } |
4702 | ||
4703 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
4704 | { | |
4705 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
4706 | } | |
4707 | ||
a230b26e | 4708 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
4709 | { |
4710 | CTLOG_STORE_free(ctx->ctlog_store); | |
4711 | ctx->ctlog_store = logs; | |
4712 | } | |
4713 | ||
4714 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
4715 | { | |
4716 | return ctx->ctlog_store; | |
4717 | } | |
4718 | ||
6b1bb98f BK |
4719 | #endif /* OPENSSL_NO_CT */ |
4720 | ||
a9c0d8be DB |
4721 | void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb, |
4722 | void *arg) | |
6b1bb98f | 4723 | { |
a9c0d8be DB |
4724 | c->client_hello_cb = cb; |
4725 | c->client_hello_cb_arg = arg; | |
6b1bb98f BK |
4726 | } |
4727 | ||
a9c0d8be | 4728 | int SSL_client_hello_isv2(SSL *s) |
6b1bb98f BK |
4729 | { |
4730 | if (s->clienthello == NULL) | |
4731 | return 0; | |
4732 | return s->clienthello->isv2; | |
4733 | } | |
4734 | ||
a9c0d8be | 4735 | unsigned int SSL_client_hello_get0_legacy_version(SSL *s) |
6b1bb98f BK |
4736 | { |
4737 | if (s->clienthello == NULL) | |
4738 | return 0; | |
4739 | return s->clienthello->legacy_version; | |
4740 | } | |
4741 | ||
a9c0d8be | 4742 | size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out) |
6b1bb98f BK |
4743 | { |
4744 | if (s->clienthello == NULL) | |
4745 | return 0; | |
4746 | if (out != NULL) | |
4747 | *out = s->clienthello->random; | |
4748 | return SSL3_RANDOM_SIZE; | |
4749 | } | |
4750 | ||
a9c0d8be | 4751 | size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out) |
6b1bb98f BK |
4752 | { |
4753 | if (s->clienthello == NULL) | |
4754 | return 0; | |
4755 | if (out != NULL) | |
4756 | *out = s->clienthello->session_id; | |
4757 | return s->clienthello->session_id_len; | |
4758 | } | |
4759 | ||
a9c0d8be | 4760 | size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out) |
6b1bb98f BK |
4761 | { |
4762 | if (s->clienthello == NULL) | |
4763 | return 0; | |
4764 | if (out != NULL) | |
4765 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
4766 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
4767 | } | |
4768 | ||
a9c0d8be | 4769 | size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out) |
6b1bb98f BK |
4770 | { |
4771 | if (s->clienthello == NULL) | |
4772 | return 0; | |
4773 | if (out != NULL) | |
4774 | *out = s->clienthello->compressions; | |
4775 | return s->clienthello->compressions_len; | |
4776 | } | |
4777 | ||
a9c0d8be | 4778 | int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen) |
193b5d76 BK |
4779 | { |
4780 | RAW_EXTENSION *ext; | |
4781 | int *present; | |
4782 | size_t num = 0, i; | |
4783 | ||
4784 | if (s->clienthello == NULL || out == NULL || outlen == NULL) | |
4785 | return 0; | |
4786 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
4787 | ext = s->clienthello->pre_proc_exts + i; | |
4788 | if (ext->present) | |
4789 | num++; | |
4790 | } | |
4791 | present = OPENSSL_malloc(sizeof(*present) * num); | |
4792 | if (present == NULL) | |
4793 | return 0; | |
4794 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
4795 | ext = s->clienthello->pre_proc_exts + i; | |
4796 | if (ext->present) { | |
4797 | if (ext->received_order >= num) | |
4798 | goto err; | |
4799 | present[ext->received_order] = ext->type; | |
4800 | } | |
4801 | } | |
4802 | *out = present; | |
4803 | *outlen = num; | |
4804 | return 1; | |
4805 | err: | |
4806 | OPENSSL_free(present); | |
4807 | return 0; | |
4808 | } | |
4809 | ||
a9c0d8be | 4810 | int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out, |
6b1bb98f BK |
4811 | size_t *outlen) |
4812 | { | |
4813 | size_t i; | |
4814 | RAW_EXTENSION *r; | |
4815 | ||
4816 | if (s->clienthello == NULL) | |
4817 | return 0; | |
4818 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
4819 | r = s->clienthello->pre_proc_exts + i; | |
4820 | if (r->present && r->type == type) { | |
4821 | if (out != NULL) | |
4822 | *out = PACKET_data(&r->data); | |
4823 | if (outlen != NULL) | |
4824 | *outlen = PACKET_remaining(&r->data); | |
4825 | return 1; | |
4826 | } | |
4827 | } | |
4828 | return 0; | |
4829 | } | |
2faa1b48 | 4830 | |
a58eb06d TS |
4831 | int SSL_free_buffers(SSL *ssl) |
4832 | { | |
4833 | RECORD_LAYER *rl = &ssl->rlayer; | |
4834 | ||
4835 | if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl)) | |
4836 | return 0; | |
4837 | ||
4838 | RECORD_LAYER_release(rl); | |
4839 | return 1; | |
4840 | } | |
4841 | ||
4842 | int SSL_alloc_buffers(SSL *ssl) | |
4843 | { | |
4844 | return ssl3_setup_buffers(ssl); | |
4845 | } | |
4846 | ||
2faa1b48 CB |
4847 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) |
4848 | { | |
4849 | ctx->keylog_callback = cb; | |
4850 | } | |
4851 | ||
4852 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
4853 | { | |
4854 | return ctx->keylog_callback; | |
4855 | } | |
4856 | ||
4857 | static int nss_keylog_int(const char *prefix, | |
4858 | SSL *ssl, | |
4859 | const uint8_t *parameter_1, | |
4860 | size_t parameter_1_len, | |
4861 | const uint8_t *parameter_2, | |
4862 | size_t parameter_2_len) | |
4863 | { | |
4864 | char *out = NULL; | |
4865 | char *cursor = NULL; | |
4866 | size_t out_len = 0; | |
4867 | size_t i; | |
4868 | size_t prefix_len; | |
4869 | ||
4870 | if (ssl->ctx->keylog_callback == NULL) return 1; | |
4871 | ||
4872 | /* | |
4873 | * Our output buffer will contain the following strings, rendered with | |
4874 | * space characters in between, terminated by a NULL character: first the | |
4875 | * prefix, then the first parameter, then the second parameter. The | |
4876 | * meaning of each parameter depends on the specific key material being | |
4877 | * logged. Note that the first and second parameters are encoded in | |
4878 | * hexadecimal, so we need a buffer that is twice their lengths. | |
4879 | */ | |
4880 | prefix_len = strlen(prefix); | |
4881 | out_len = prefix_len + (2*parameter_1_len) + (2*parameter_2_len) + 3; | |
4882 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { | |
4883 | SSLerr(SSL_F_NSS_KEYLOG_INT, ERR_R_MALLOC_FAILURE); | |
4884 | return 0; | |
4885 | } | |
4886 | ||
4887 | strcpy(cursor, prefix); | |
4888 | cursor += prefix_len; | |
4889 | *cursor++ = ' '; | |
4890 | ||
4891 | for (i = 0; i < parameter_1_len; i++) { | |
4892 | sprintf(cursor, "%02x", parameter_1[i]); | |
4893 | cursor += 2; | |
4894 | } | |
4895 | *cursor++ = ' '; | |
4896 | ||
4897 | for (i = 0; i < parameter_2_len; i++) { | |
4898 | sprintf(cursor, "%02x", parameter_2[i]); | |
4899 | cursor += 2; | |
4900 | } | |
4901 | *cursor = '\0'; | |
4902 | ||
4903 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
4904 | OPENSSL_free(out); | |
4905 | return 1; | |
4906 | ||
4907 | } | |
4908 | ||
4909 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
4910 | const uint8_t *encrypted_premaster, | |
4911 | size_t encrypted_premaster_len, | |
4912 | const uint8_t *premaster, | |
4913 | size_t premaster_len) | |
4914 | { | |
4915 | if (encrypted_premaster_len < 8) { | |
4916 | SSLerr(SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
4917 | return 0; | |
4918 | } | |
4919 | ||
f0deb4d3 | 4920 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
4921 | return nss_keylog_int("RSA", |
4922 | ssl, | |
4923 | encrypted_premaster, | |
f0deb4d3 | 4924 | 8, |
2faa1b48 CB |
4925 | premaster, |
4926 | premaster_len); | |
4927 | } | |
4928 | ||
2c7bd692 CB |
4929 | int ssl_log_secret(SSL *ssl, |
4930 | const char *label, | |
4931 | const uint8_t *secret, | |
4932 | size_t secret_len) | |
2faa1b48 | 4933 | { |
2c7bd692 | 4934 | return nss_keylog_int(label, |
2faa1b48 | 4935 | ssl, |
2c7bd692 CB |
4936 | ssl->s3->client_random, |
4937 | SSL3_RANDOM_SIZE, | |
4938 | secret, | |
4939 | secret_len); | |
2faa1b48 CB |
4940 | } |
4941 | ||
ccb8e6e0 BK |
4942 | #define SSLV2_CIPHER_LEN 3 |
4943 | ||
90134d98 BK |
4944 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format, |
4945 | int *al) | |
ccb8e6e0 | 4946 | { |
ccb8e6e0 | 4947 | int n; |
ccb8e6e0 BK |
4948 | |
4949 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
4950 | ||
4951 | if (PACKET_remaining(cipher_suites) == 0) { | |
90134d98 | 4952 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, SSL_R_NO_CIPHERS_SPECIFIED); |
ccb8e6e0 | 4953 | *al = SSL_AD_ILLEGAL_PARAMETER; |
90134d98 | 4954 | return 0; |
ccb8e6e0 BK |
4955 | } |
4956 | ||
4957 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
90134d98 | 4958 | SSLerr(SSL_F_SSL_CACHE_CIPHERLIST, |
ccb8e6e0 BK |
4959 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
4960 | *al = SSL_AD_DECODE_ERROR; | |
90134d98 | 4961 | return 0; |
ccb8e6e0 BK |
4962 | } |
4963 | ||
4964 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
4965 | s->s3->tmp.ciphers_raw = NULL; | |
4966 | s->s3->tmp.ciphers_rawlen = 0; | |
4967 | ||
4968 | if (sslv2format) { | |
4969 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
4970 | PACKET sslv2ciphers = *cipher_suites; | |
4971 | unsigned int leadbyte; | |
4972 | unsigned char *raw; | |
4973 | ||
4974 | /* | |
4975 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
4976 | * preprocessing to convert the list first. If there are any SSLv2 only | |
4977 | * ciphersuites with a non-zero leading byte then we are going to | |
4978 | * slightly over allocate because we won't store those. But that isn't a | |
4979 | * problem. | |
4980 | */ | |
4981 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
4982 | s->s3->tmp.ciphers_raw = raw; | |
4983 | if (raw == NULL) { | |
4984 | *al = SSL_AD_INTERNAL_ERROR; | |
4985 | goto err; | |
4986 | } | |
4987 | for (s->s3->tmp.ciphers_rawlen = 0; | |
4988 | PACKET_remaining(&sslv2ciphers) > 0; | |
4989 | raw += TLS_CIPHER_LEN) { | |
4990 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
4991 | || (leadbyte == 0 | |
4992 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
4993 | TLS_CIPHER_LEN)) | |
4994 | || (leadbyte != 0 | |
4995 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
fb34a0f4 | 4996 | *al = SSL_AD_DECODE_ERROR; |
ccb8e6e0 BK |
4997 | OPENSSL_free(s->s3->tmp.ciphers_raw); |
4998 | s->s3->tmp.ciphers_raw = NULL; | |
4999 | s->s3->tmp.ciphers_rawlen = 0; | |
5000 | goto err; | |
5001 | } | |
5002 | if (leadbyte == 0) | |
5003 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
5004 | } | |
5005 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
5006 | &s->s3->tmp.ciphers_rawlen)) { | |
5007 | *al = SSL_AD_INTERNAL_ERROR; | |
5008 | goto err; | |
5009 | } | |
90134d98 BK |
5010 | return 1; |
5011 | err: | |
5012 | return 0; | |
5013 | } | |
5014 | ||
5015 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
5016 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
5017 | STACK_OF(SSL_CIPHER) **scsvs) | |
5018 | { | |
5019 | int alert; | |
5020 | PACKET pkt; | |
5021 | ||
5022 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
5023 | return 0; | |
5024 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, &alert); | |
5025 | } | |
5026 | ||
5027 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
5028 | STACK_OF(SSL_CIPHER) **skp, | |
5029 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
5030 | int sslv2format, int *al) | |
5031 | { | |
5032 | const SSL_CIPHER *c; | |
5033 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
5034 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
5035 | int n; | |
5036 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
5037 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
5038 | ||
5039 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5040 | ||
5041 | if (PACKET_remaining(cipher_suites) == 0) { | |
5042 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
5043 | *al = SSL_AD_ILLEGAL_PARAMETER; | |
5044 | return 0; | |
5045 | } | |
5046 | ||
5047 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
5048 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
5049 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
5050 | *al = SSL_AD_DECODE_ERROR; | |
5051 | return 0; | |
5052 | } | |
5053 | ||
5054 | sk = sk_SSL_CIPHER_new_null(); | |
5055 | scsvs = sk_SSL_CIPHER_new_null(); | |
5056 | if (sk == NULL || scsvs == NULL) { | |
5057 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
5058 | *al = SSL_AD_INTERNAL_ERROR; | |
5059 | goto err; | |
5060 | } | |
ccb8e6e0 BK |
5061 | |
5062 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
5063 | /* | |
5064 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
5065 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
5066 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
5067 | */ | |
5068 | if (sslv2format && cipher[0] != '\0') | |
5069 | continue; | |
5070 | ||
ccb8e6e0 BK |
5071 | /* For SSLv2-compat, ignore leading 0-byte. */ |
5072 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
5073 | if (c != NULL) { | |
90134d98 BK |
5074 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
5075 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
ccb8e6e0 BK |
5076 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); |
5077 | *al = SSL_AD_INTERNAL_ERROR; | |
5078 | goto err; | |
5079 | } | |
5080 | } | |
5081 | } | |
5082 | if (PACKET_remaining(cipher_suites) > 0) { | |
fb34a0f4 MC |
5083 | *al = SSL_AD_DECODE_ERROR; |
5084 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH); | |
ccb8e6e0 BK |
5085 | goto err; |
5086 | } | |
5087 | ||
90134d98 BK |
5088 | if (skp != NULL) |
5089 | *skp = sk; | |
5090 | else | |
5091 | sk_SSL_CIPHER_free(sk); | |
5092 | if (scsvs_out != NULL) | |
5093 | *scsvs_out = scsvs; | |
5094 | else | |
5095 | sk_SSL_CIPHER_free(scsvs); | |
5096 | return 1; | |
ccb8e6e0 BK |
5097 | err: |
5098 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
5099 | sk_SSL_CIPHER_free(scsvs); |
5100 | return 0; | |
ccb8e6e0 | 5101 | } |
3fc8d856 MC |
5102 | |
5103 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
5104 | { | |
5105 | ctx->max_early_data = max_early_data; | |
5106 | ||
5107 | return 1; | |
5108 | } | |
5109 | ||
46dcb945 | 5110 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
5111 | { |
5112 | return ctx->max_early_data; | |
5113 | } | |
5114 | ||
5115 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
5116 | { | |
5117 | s->max_early_data = max_early_data; | |
5118 | ||
5119 | return 1; | |
5120 | } | |
5121 | ||
a8e75d56 | 5122 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
5123 | { |
5124 | return s->max_early_data; | |
5125 | } | |
ae3947de RS |
5126 | |
5127 | int ssl_randbytes(SSL *s, unsigned char *rnd, size_t size) | |
5128 | { | |
2139145b BK |
5129 | if (s->drbg != NULL) { |
5130 | /* | |
5131 | * Currently, it's the duty of the caller to serialize the generate | |
5132 | * requests to the DRBG. So formally we have to check whether | |
5133 | * s->drbg->lock != NULL and take the lock if this is the case. | |
5134 | * However, this DRBG is unique to a given SSL object, and we already | |
5135 | * require that SSL objects are only accessed by a single thread at | |
5136 | * a given time. Also, SSL DRBGs have no child DRBG, so there is | |
5137 | * no risk that this DRBG is accessed by a child DRBG in parallel | |
5138 | * for reseeding. As such, we can rely on the application's | |
5139 | * serialization of SSL accesses for the needed concurrency protection | |
5140 | * here. | |
5141 | */ | |
5142 | return RAND_DRBG_generate(s->drbg, rnd, size, 0, NULL, 0); | |
5143 | } | |
ae3947de RS |
5144 | return RAND_bytes(rnd, (int)size); |
5145 | } |