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0f113f3e | 1 | /* |
48e5119a | 2 | * Copyright 1995-2018 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 | * |
2c18d164 | 6 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
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> |
706457b7 | 13 | #include "ssl_local.h" |
7c3a7561 | 14 | #include "e_os.h" |
ec577822 | 15 | #include <openssl/objects.h> |
bb7cd4e3 | 16 | #include <openssl/x509v3.h> |
6434abbf | 17 | #include <openssl/rand.h> |
6decf943 | 18 | #include <openssl/rand_drbg.h> |
67c8e7f4 | 19 | #include <openssl/ocsp.h> |
3c27208f RS |
20 | #include <openssl/dh.h> |
21 | #include <openssl/engine.h> | |
07bbc92c | 22 | #include <openssl/async.h> |
3c27208f | 23 | #include <openssl/ct.h> |
77359d22 | 24 | #include <openssl/trace.h> |
67dc995e | 25 | #include "internal/cryptlib.h" |
cd420b0b | 26 | #include "internal/refcount.h" |
50ec7505 | 27 | #include "internal/ktls.h" |
0f113f3e | 28 | |
fce78bd4 BE |
29 | static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t) |
30 | { | |
31 | (void)r; | |
32 | (void)s; | |
33 | (void)t; | |
34 | return ssl_undefined_function(ssl); | |
35 | } | |
36 | ||
37 | static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s, | |
38 | int t) | |
39 | { | |
40 | (void)r; | |
41 | (void)s; | |
42 | (void)t; | |
43 | return ssl_undefined_function(ssl); | |
44 | } | |
45 | ||
46 | static int ssl_undefined_function_3(SSL *ssl, unsigned char *r, | |
47 | unsigned char *s, size_t t, size_t *u) | |
48 | { | |
49 | (void)r; | |
50 | (void)s; | |
51 | (void)t; | |
52 | (void)u; | |
53 | return ssl_undefined_function(ssl); | |
54 | } | |
55 | ||
56 | static int ssl_undefined_function_4(SSL *ssl, int r) | |
57 | { | |
58 | (void)r; | |
59 | return ssl_undefined_function(ssl); | |
60 | } | |
61 | ||
62 | static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s, | |
63 | unsigned char *t) | |
64 | { | |
65 | (void)r; | |
66 | (void)s; | |
67 | (void)t; | |
68 | return ssl_undefined_function(ssl); | |
69 | } | |
70 | ||
71 | static int ssl_undefined_function_6(int r) | |
72 | { | |
73 | (void)r; | |
74 | return ssl_undefined_function(NULL); | |
75 | } | |
76 | ||
77 | static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s, | |
78 | const char *t, size_t u, | |
79 | const unsigned char *v, size_t w, int x) | |
80 | { | |
81 | (void)r; | |
82 | (void)s; | |
83 | (void)t; | |
84 | (void)u; | |
85 | (void)v; | |
86 | (void)w; | |
87 | (void)x; | |
88 | return ssl_undefined_function(ssl); | |
89 | } | |
90 | ||
0f113f3e | 91 | SSL3_ENC_METHOD ssl3_undef_enc_method = { |
fce78bd4 BE |
92 | ssl_undefined_function_1, |
93 | ssl_undefined_function_2, | |
0f113f3e | 94 | ssl_undefined_function, |
fce78bd4 BE |
95 | ssl_undefined_function_3, |
96 | ssl_undefined_function_4, | |
97 | ssl_undefined_function_5, | |
0f113f3e MC |
98 | NULL, /* client_finished_label */ |
99 | 0, /* client_finished_label_len */ | |
100 | NULL, /* server_finished_label */ | |
101 | 0, /* server_finished_label_len */ | |
fce78bd4 BE |
102 | ssl_undefined_function_6, |
103 | ssl_undefined_function_7, | |
0f113f3e | 104 | }; |
d02b48c6 | 105 | |
07bbc92c MC |
106 | struct ssl_async_args { |
107 | SSL *s; | |
108 | void *buf; | |
348240c6 | 109 | size_t num; |
a230b26e | 110 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 111 | union { |
eda75751 | 112 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 113 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 114 | int (*func_other) (SSL *); |
add2f5ca | 115 | } f; |
07bbc92c MC |
116 | }; |
117 | ||
919ba009 VD |
118 | static const struct { |
119 | uint8_t mtype; | |
120 | uint8_t ord; | |
a230b26e | 121 | int nid; |
919ba009 | 122 | } dane_mds[] = { |
a230b26e EK |
123 | { |
124 | DANETLS_MATCHING_FULL, 0, NID_undef | |
125 | }, | |
126 | { | |
127 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
128 | }, | |
129 | { | |
130 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
131 | }, | |
919ba009 VD |
132 | }; |
133 | ||
134 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
135 | { | |
136 | const EVP_MD **mdevp; | |
137 | uint8_t *mdord; | |
138 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 139 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
140 | size_t i; |
141 | ||
5ae4ceb9 VD |
142 | if (dctx->mdevp != NULL) |
143 | return 1; | |
144 | ||
919ba009 VD |
145 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
146 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
147 | ||
148 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 149 | OPENSSL_free(mdord); |
919ba009 VD |
150 | OPENSSL_free(mdevp); |
151 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
152 | return 0; | |
153 | } | |
154 | ||
155 | /* Install default entries */ | |
156 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
157 | const EVP_MD *md; | |
158 | ||
159 | if (dane_mds[i].nid == NID_undef || | |
160 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
161 | continue; | |
162 | mdevp[dane_mds[i].mtype] = md; | |
163 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
164 | } | |
165 | ||
166 | dctx->mdevp = mdevp; | |
167 | dctx->mdord = mdord; | |
168 | dctx->mdmax = mdmax; | |
169 | ||
170 | return 1; | |
171 | } | |
172 | ||
173 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
174 | { | |
175 | OPENSSL_free(dctx->mdevp); | |
176 | dctx->mdevp = NULL; | |
177 | ||
178 | OPENSSL_free(dctx->mdord); | |
179 | dctx->mdord = NULL; | |
180 | dctx->mdmax = 0; | |
181 | } | |
182 | ||
183 | static void tlsa_free(danetls_record *t) | |
184 | { | |
185 | if (t == NULL) | |
186 | return; | |
187 | OPENSSL_free(t->data); | |
188 | EVP_PKEY_free(t->spki); | |
189 | OPENSSL_free(t); | |
190 | } | |
191 | ||
b9aec69a | 192 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
193 | { |
194 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
195 | dane->trecs = NULL; | |
196 | ||
197 | sk_X509_pop_free(dane->certs, X509_free); | |
198 | dane->certs = NULL; | |
199 | ||
200 | X509_free(dane->mcert); | |
201 | dane->mcert = NULL; | |
202 | dane->mtlsa = NULL; | |
203 | dane->mdpth = -1; | |
204 | dane->pdpth = -1; | |
205 | } | |
206 | ||
207 | /* | |
208 | * dane_copy - Copy dane configuration, sans verification state. | |
209 | */ | |
210 | static int ssl_dane_dup(SSL *to, SSL *from) | |
211 | { | |
212 | int num; | |
213 | int i; | |
214 | ||
215 | if (!DANETLS_ENABLED(&from->dane)) | |
216 | return 1; | |
217 | ||
e431363f | 218 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 | 219 | dane_final(&to->dane); |
5ae4ceb9 | 220 | to->dane.flags = from->dane.flags; |
9f6b22b8 | 221 | to->dane.dctx = &to->ctx->dane; |
7a908204 | 222 | to->dane.trecs = sk_danetls_record_new_reserve(NULL, num); |
9f6b22b8 VD |
223 | |
224 | if (to->dane.trecs == NULL) { | |
225 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
226 | return 0; | |
227 | } | |
919ba009 | 228 | |
919ba009 VD |
229 | for (i = 0; i < num; ++i) { |
230 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 231 | |
919ba009 VD |
232 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
233 | t->data, t->dlen) <= 0) | |
234 | return 0; | |
235 | } | |
236 | return 1; | |
237 | } | |
238 | ||
a230b26e EK |
239 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
240 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
241 | { |
242 | int i; | |
243 | ||
244 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 245 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
246 | return 0; |
247 | } | |
248 | ||
249 | if (mtype > dctx->mdmax) { | |
250 | const EVP_MD **mdevp; | |
251 | uint8_t *mdord; | |
a230b26e | 252 | int n = ((int)mtype) + 1; |
919ba009 VD |
253 | |
254 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
255 | if (mdevp == NULL) { | |
256 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
257 | return -1; | |
258 | } | |
259 | dctx->mdevp = mdevp; | |
260 | ||
261 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
262 | if (mdord == NULL) { | |
263 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
264 | return -1; | |
265 | } | |
266 | dctx->mdord = mdord; | |
267 | ||
268 | /* Zero-fill any gaps */ | |
a230b26e | 269 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
270 | mdevp[i] = NULL; |
271 | mdord[i] = 0; | |
272 | } | |
273 | ||
274 | dctx->mdmax = mtype; | |
275 | } | |
276 | ||
277 | dctx->mdevp[mtype] = md; | |
278 | /* Coerce ordinal of disabled matching types to 0 */ | |
279 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
280 | ||
281 | return 1; | |
282 | } | |
283 | ||
b9aec69a | 284 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
285 | { |
286 | if (mtype > dane->dctx->mdmax) | |
287 | return NULL; | |
288 | return dane->dctx->mdevp[mtype]; | |
289 | } | |
290 | ||
a230b26e EK |
291 | static int dane_tlsa_add(SSL_DANE *dane, |
292 | uint8_t usage, | |
293 | uint8_t selector, | |
a41a6120 | 294 | uint8_t mtype, unsigned const char *data, size_t dlen) |
919ba009 VD |
295 | { |
296 | danetls_record *t; | |
297 | const EVP_MD *md = NULL; | |
298 | int ilen = (int)dlen; | |
299 | int i; | |
9f6b22b8 | 300 | int num; |
919ba009 VD |
301 | |
302 | if (dane->trecs == NULL) { | |
303 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
304 | return -1; | |
305 | } | |
306 | ||
307 | if (ilen < 0 || dlen != (size_t)ilen) { | |
308 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
309 | return 0; | |
310 | } | |
311 | ||
312 | if (usage > DANETLS_USAGE_LAST) { | |
313 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
314 | return 0; | |
315 | } | |
316 | ||
317 | if (selector > DANETLS_SELECTOR_LAST) { | |
318 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
319 | return 0; | |
320 | } | |
321 | ||
322 | if (mtype != DANETLS_MATCHING_FULL) { | |
323 | md = tlsa_md_get(dane, mtype); | |
324 | if (md == NULL) { | |
325 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
326 | return 0; | |
327 | } | |
328 | } | |
329 | ||
330 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
331 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
332 | return 0; | |
333 | } | |
334 | if (!data) { | |
335 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
336 | return 0; | |
337 | } | |
338 | ||
339 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
340 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
341 | return -1; | |
342 | } | |
343 | ||
344 | t->usage = usage; | |
345 | t->selector = selector; | |
346 | t->mtype = mtype; | |
348240c6 | 347 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
348 | if (t->data == NULL) { |
349 | tlsa_free(t); | |
350 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
351 | return -1; | |
352 | } | |
348240c6 MC |
353 | memcpy(t->data, data, dlen); |
354 | t->dlen = dlen; | |
919ba009 VD |
355 | |
356 | /* Validate and cache full certificate or public key */ | |
357 | if (mtype == DANETLS_MATCHING_FULL) { | |
358 | const unsigned char *p = data; | |
359 | X509 *cert = NULL; | |
360 | EVP_PKEY *pkey = NULL; | |
361 | ||
362 | switch (selector) { | |
363 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 364 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
365 | dlen != (size_t)(p - data)) { |
366 | tlsa_free(t); | |
367 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
368 | return 0; | |
369 | } | |
370 | if (X509_get0_pubkey(cert) == NULL) { | |
371 | tlsa_free(t); | |
372 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
373 | return 0; | |
374 | } | |
375 | ||
376 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
377 | X509_free(cert); | |
378 | break; | |
379 | } | |
380 | ||
381 | /* | |
382 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
383 | * records that contain full certificates of trust-anchors that are | |
384 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
385 | * the chain with untrusted Full(0) certificates from DNS, in case | |
386 | * they are missing from the chain. | |
387 | */ | |
388 | if ((dane->certs == NULL && | |
389 | (dane->certs = sk_X509_new_null()) == NULL) || | |
390 | !sk_X509_push(dane->certs, cert)) { | |
391 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
392 | X509_free(cert); | |
393 | tlsa_free(t); | |
394 | return -1; | |
395 | } | |
396 | break; | |
397 | ||
398 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 399 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
400 | dlen != (size_t)(p - data)) { |
401 | tlsa_free(t); | |
402 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
403 | return 0; | |
404 | } | |
405 | ||
406 | /* | |
407 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
408 | * records that contain full bare keys of trust-anchors that are | |
409 | * not present in the wire chain. | |
410 | */ | |
411 | if (usage == DANETLS_USAGE_DANE_TA) | |
412 | t->spki = pkey; | |
413 | else | |
414 | EVP_PKEY_free(pkey); | |
415 | break; | |
416 | } | |
417 | } | |
418 | ||
419 | /*- | |
420 | * Find the right insertion point for the new record. | |
421 | * | |
422 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
423 | * they can be processed first, as they require no chain building, and no | |
424 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
425 | * largest, this is accomplished via descending sort by "usage". | |
426 | * | |
427 | * We also sort in descending order by matching ordinal to simplify | |
428 | * the implementation of digest agility in the verification code. | |
429 | * | |
430 | * The choice of order for the selector is not significant, so we | |
431 | * use the same descending order for consistency. | |
432 | */ | |
9f6b22b8 VD |
433 | num = sk_danetls_record_num(dane->trecs); |
434 | for (i = 0; i < num; ++i) { | |
919ba009 | 435 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 436 | |
919ba009 VD |
437 | if (rec->usage > usage) |
438 | continue; | |
439 | if (rec->usage < usage) | |
440 | break; | |
441 | if (rec->selector > selector) | |
442 | continue; | |
443 | if (rec->selector < selector) | |
444 | break; | |
445 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
446 | continue; | |
447 | break; | |
448 | } | |
449 | ||
450 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
451 | tlsa_free(t); | |
452 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
453 | return -1; | |
454 | } | |
455 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
456 | ||
457 | return 1; | |
458 | } | |
459 | ||
c8feba72 BK |
460 | /* |
461 | * Return 0 if there is only one version configured and it was disabled | |
462 | * at configure time. Return 1 otherwise. | |
463 | */ | |
464 | static int ssl_check_allowed_versions(int min_version, int max_version) | |
465 | { | |
466 | int minisdtls = 0, maxisdtls = 0; | |
467 | ||
468 | /* Figure out if we're doing DTLS versions or TLS versions */ | |
469 | if (min_version == DTLS1_BAD_VER | |
470 | || min_version >> 8 == DTLS1_VERSION_MAJOR) | |
471 | minisdtls = 1; | |
472 | if (max_version == DTLS1_BAD_VER | |
473 | || max_version >> 8 == DTLS1_VERSION_MAJOR) | |
474 | maxisdtls = 1; | |
475 | /* A wildcard version of 0 could be DTLS or TLS. */ | |
476 | if ((minisdtls && !maxisdtls && max_version != 0) | |
477 | || (maxisdtls && !minisdtls && min_version != 0)) { | |
478 | /* Mixing DTLS and TLS versions will lead to sadness; deny it. */ | |
479 | return 0; | |
480 | } | |
481 | ||
482 | if (minisdtls || maxisdtls) { | |
483 | /* Do DTLS version checks. */ | |
484 | if (min_version == 0) | |
485 | /* Ignore DTLS1_BAD_VER */ | |
486 | min_version = DTLS1_VERSION; | |
487 | if (max_version == 0) | |
488 | max_version = DTLS1_2_VERSION; | |
489 | #ifdef OPENSSL_NO_DTLS1_2 | |
490 | if (max_version == DTLS1_2_VERSION) | |
491 | max_version = DTLS1_VERSION; | |
492 | #endif | |
493 | #ifdef OPENSSL_NO_DTLS1 | |
494 | if (min_version == DTLS1_VERSION) | |
495 | min_version = DTLS1_2_VERSION; | |
496 | #endif | |
79b4444d DMSP |
497 | /* Done massaging versions; do the check. */ |
498 | if (0 | |
c8feba72 BK |
499 | #ifdef OPENSSL_NO_DTLS1 |
500 | || (DTLS_VERSION_GE(min_version, DTLS1_VERSION) | |
501 | && DTLS_VERSION_GE(DTLS1_VERSION, max_version)) | |
502 | #endif | |
503 | #ifdef OPENSSL_NO_DTLS1_2 | |
504 | || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION) | |
505 | && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version)) | |
506 | #endif | |
507 | ) | |
508 | return 0; | |
509 | } else { | |
510 | /* Regular TLS version checks. */ | |
79b4444d DMSP |
511 | if (min_version == 0) |
512 | min_version = SSL3_VERSION; | |
513 | if (max_version == 0) | |
514 | max_version = TLS1_3_VERSION; | |
c8feba72 | 515 | #ifdef OPENSSL_NO_TLS1_3 |
79b4444d DMSP |
516 | if (max_version == TLS1_3_VERSION) |
517 | max_version = TLS1_2_VERSION; | |
c8feba72 BK |
518 | #endif |
519 | #ifdef OPENSSL_NO_TLS1_2 | |
79b4444d DMSP |
520 | if (max_version == TLS1_2_VERSION) |
521 | max_version = TLS1_1_VERSION; | |
c8feba72 BK |
522 | #endif |
523 | #ifdef OPENSSL_NO_TLS1_1 | |
79b4444d DMSP |
524 | if (max_version == TLS1_1_VERSION) |
525 | max_version = TLS1_VERSION; | |
c8feba72 BK |
526 | #endif |
527 | #ifdef OPENSSL_NO_TLS1 | |
79b4444d DMSP |
528 | if (max_version == TLS1_VERSION) |
529 | max_version = SSL3_VERSION; | |
c8feba72 BK |
530 | #endif |
531 | #ifdef OPENSSL_NO_SSL3 | |
79b4444d DMSP |
532 | if (min_version == SSL3_VERSION) |
533 | min_version = TLS1_VERSION; | |
c8feba72 BK |
534 | #endif |
535 | #ifdef OPENSSL_NO_TLS1 | |
79b4444d DMSP |
536 | if (min_version == TLS1_VERSION) |
537 | min_version = TLS1_1_VERSION; | |
c8feba72 BK |
538 | #endif |
539 | #ifdef OPENSSL_NO_TLS1_1 | |
79b4444d DMSP |
540 | if (min_version == TLS1_1_VERSION) |
541 | min_version = TLS1_2_VERSION; | |
c8feba72 BK |
542 | #endif |
543 | #ifdef OPENSSL_NO_TLS1_2 | |
79b4444d DMSP |
544 | if (min_version == TLS1_2_VERSION) |
545 | min_version = TLS1_3_VERSION; | |
c8feba72 | 546 | #endif |
79b4444d DMSP |
547 | /* Done massaging versions; do the check. */ |
548 | if (0 | |
c8feba72 BK |
549 | #ifdef OPENSSL_NO_SSL3 |
550 | || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version) | |
551 | #endif | |
552 | #ifdef OPENSSL_NO_TLS1 | |
553 | || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version) | |
554 | #endif | |
555 | #ifdef OPENSSL_NO_TLS1_1 | |
556 | || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version) | |
557 | #endif | |
558 | #ifdef OPENSSL_NO_TLS1_2 | |
559 | || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version) | |
560 | #endif | |
561 | #ifdef OPENSSL_NO_TLS1_3 | |
562 | || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version) | |
563 | #endif | |
564 | ) | |
565 | return 0; | |
566 | } | |
567 | return 1; | |
568 | } | |
569 | ||
d31fb0b5 RS |
570 | static void clear_ciphers(SSL *s) |
571 | { | |
572 | /* clear the current cipher */ | |
573 | ssl_clear_cipher_ctx(s); | |
574 | ssl_clear_hash_ctx(&s->read_hash); | |
575 | ssl_clear_hash_ctx(&s->write_hash); | |
576 | } | |
577 | ||
4f43d0e7 | 578 | int SSL_clear(SSL *s) |
0f113f3e | 579 | { |
0f113f3e MC |
580 | if (s->method == NULL) { |
581 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
a89325e4 | 582 | return 0; |
0f113f3e | 583 | } |
d02b48c6 | 584 | |
0f113f3e MC |
585 | if (ssl_clear_bad_session(s)) { |
586 | SSL_SESSION_free(s->session); | |
587 | s->session = NULL; | |
588 | } | |
9368f865 MC |
589 | SSL_SESSION_free(s->psksession); |
590 | s->psksession = NULL; | |
add8d0e9 MC |
591 | OPENSSL_free(s->psksession_id); |
592 | s->psksession_id = NULL; | |
593 | s->psksession_id_len = 0; | |
808d1601 | 594 | s->hello_retry_request = 0; |
36ff232c | 595 | s->sent_tickets = 0; |
d62bfb39 | 596 | |
0f113f3e MC |
597 | s->error = 0; |
598 | s->hit = 0; | |
599 | s->shutdown = 0; | |
d02b48c6 | 600 | |
0f113f3e MC |
601 | if (s->renegotiate) { |
602 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
603 | return 0; | |
604 | } | |
d02b48c6 | 605 | |
fe3a3291 | 606 | ossl_statem_clear(s); |
413c4f45 | 607 | |
0f113f3e MC |
608 | s->version = s->method->version; |
609 | s->client_version = s->version; | |
610 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 611 | |
25aaa98a RS |
612 | BUF_MEM_free(s->init_buf); |
613 | s->init_buf = NULL; | |
d31fb0b5 | 614 | clear_ciphers(s); |
0f113f3e | 615 | s->first_packet = 0; |
d02b48c6 | 616 | |
44c04a2e MC |
617 | s->key_update = SSL_KEY_UPDATE_NONE; |
618 | ||
88834998 TS |
619 | EVP_MD_CTX_free(s->pha_dgst); |
620 | s->pha_dgst = NULL; | |
621 | ||
919ba009 VD |
622 | /* Reset DANE verification result state */ |
623 | s->dane.mdpth = -1; | |
624 | s->dane.pdpth = -1; | |
625 | X509_free(s->dane.mcert); | |
626 | s->dane.mcert = NULL; | |
627 | s->dane.mtlsa = NULL; | |
628 | ||
629 | /* Clear the verification result peername */ | |
630 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
631 | ||
29948ac8 BK |
632 | /* Clear any shared connection state */ |
633 | OPENSSL_free(s->shared_sigalgs); | |
634 | s->shared_sigalgs = NULL; | |
635 | s->shared_sigalgslen = 0; | |
636 | ||
0f113f3e MC |
637 | /* |
638 | * Check to see if we were changed into a different method, if so, revert | |
24252537 | 639 | * back. |
0f113f3e | 640 | */ |
24252537 | 641 | if (s->method != s->ctx->method) { |
0f113f3e MC |
642 | s->method->ssl_free(s); |
643 | s->method = s->ctx->method; | |
644 | if (!s->method->ssl_new(s)) | |
a89325e4 | 645 | return 0; |
b77f3ed1 MC |
646 | } else { |
647 | if (!s->method->ssl_clear(s)) | |
648 | return 0; | |
649 | } | |
33d23b87 | 650 | |
af9752e5 | 651 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 652 | |
a89325e4 | 653 | return 1; |
0f113f3e | 654 | } |
d02b48c6 | 655 | |
4f43d0e7 | 656 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
657 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
658 | { | |
659 | STACK_OF(SSL_CIPHER) *sk; | |
660 | ||
661 | ctx->method = meth; | |
662 | ||
5d120511 | 663 | if (!SSL_CTX_set_ciphersuites(ctx, OSSL_default_ciphersuites())) { |
2340ed27 BK |
664 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
665 | return 0; | |
666 | } | |
f865b081 MC |
667 | sk = ssl_create_cipher_list(ctx->method, |
668 | ctx->tls13_ciphersuites, | |
669 | &(ctx->cipher_list), | |
0f113f3e | 670 | &(ctx->cipher_list_by_id), |
5d120511 | 671 | OSSL_default_cipher_list(), ctx->cert); |
0f113f3e | 672 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { |
a230b26e | 673 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
26a7d938 | 674 | return 0; |
0f113f3e | 675 | } |
208fb891 | 676 | return 1; |
0f113f3e | 677 | } |
d02b48c6 | 678 | |
4f43d0e7 | 679 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
680 | { |
681 | SSL *s; | |
682 | ||
683 | if (ctx == NULL) { | |
684 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
26a7d938 | 685 | return NULL; |
0f113f3e MC |
686 | } |
687 | if (ctx->method == NULL) { | |
688 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
26a7d938 | 689 | return NULL; |
0f113f3e MC |
690 | } |
691 | ||
b51bce94 | 692 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
693 | if (s == NULL) |
694 | goto err; | |
0f113f3e | 695 | |
e6b10c34 | 696 | s->references = 1; |
16203f7b | 697 | s->lock = CRYPTO_THREAD_lock_new(); |
e6b10c34 BE |
698 | if (s->lock == NULL) { |
699 | OPENSSL_free(s); | |
700 | s = NULL; | |
ae3947de | 701 | goto err; |
e6b10c34 | 702 | } |
ae3947de | 703 | |
c036e210 | 704 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 705 | |
0f113f3e | 706 | s->options = ctx->options; |
5ae4ceb9 | 707 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
708 | s->min_proto_version = ctx->min_proto_version; |
709 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
710 | s->mode = ctx->mode; |
711 | s->max_cert_list = ctx->max_cert_list; | |
3fc8d856 | 712 | s->max_early_data = ctx->max_early_data; |
4e8548e8 | 713 | s->recv_max_early_data = ctx->recv_max_early_data; |
9d0a8bb7 | 714 | s->num_tickets = ctx->num_tickets; |
e97be718 | 715 | s->pha_enabled = ctx->pha_enabled; |
0f113f3e | 716 | |
f865b081 MC |
717 | /* Shallow copy of the ciphersuites stack */ |
718 | s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites); | |
719 | if (s->tls13_ciphersuites == NULL) | |
720 | goto err; | |
721 | ||
2c382349 KR |
722 | /* |
723 | * Earlier library versions used to copy the pointer to the CERT, not | |
724 | * its contents; only when setting new parameters for the per-SSL | |
725 | * copy, ssl_cert_new would be called (and the direct reference to | |
726 | * the per-SSL_CTX settings would be lost, but those still were | |
727 | * indirectly accessed for various purposes, and for that reason they | |
728 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
729 | * SSL_CTX's CERT after having duplicated it once. | |
730 | */ | |
731 | s->cert = ssl_cert_dup(ctx->cert); | |
732 | if (s->cert == NULL) | |
733 | goto err; | |
0f113f3e | 734 | |
52e1d7b1 | 735 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
736 | s->msg_callback = ctx->msg_callback; |
737 | s->msg_callback_arg = ctx->msg_callback_arg; | |
738 | s->verify_mode = ctx->verify_mode; | |
739 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
c649d10d TS |
740 | s->record_padding_cb = ctx->record_padding_cb; |
741 | s->record_padding_arg = ctx->record_padding_arg; | |
742 | s->block_padding = ctx->block_padding; | |
0f113f3e | 743 | s->sid_ctx_length = ctx->sid_ctx_length; |
cbe29648 | 744 | if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx))) |
380a522f | 745 | goto err; |
0f113f3e MC |
746 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); |
747 | s->verify_callback = ctx->default_verify_callback; | |
748 | s->generate_session_id = ctx->generate_session_id; | |
749 | ||
750 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 751 | if (s->param == NULL) |
0f113f3e MC |
752 | goto err; |
753 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e | 754 | s->quiet_shutdown = ctx->quiet_shutdown; |
cf72c757 F |
755 | |
756 | s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode; | |
0f113f3e | 757 | s->max_send_fragment = ctx->max_send_fragment; |
d102d9df MC |
758 | s->split_send_fragment = ctx->split_send_fragment; |
759 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
760 | if (s->max_pipelines > 1) |
761 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
762 | if (ctx->default_read_buf_len > 0) |
763 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 764 | |
16203f7b | 765 | SSL_CTX_up_ref(ctx); |
0f113f3e | 766 | s->ctx = ctx; |
aff8c126 RS |
767 | s->ext.debug_cb = 0; |
768 | s->ext.debug_arg = NULL; | |
769 | s->ext.ticket_expected = 0; | |
770 | s->ext.status_type = ctx->ext.status_type; | |
771 | s->ext.status_expected = 0; | |
772 | s->ext.ocsp.ids = NULL; | |
773 | s->ext.ocsp.exts = NULL; | |
774 | s->ext.ocsp.resp = NULL; | |
775 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 776 | SSL_CTX_up_ref(ctx); |
222da979 | 777 | s->session_ctx = ctx; |
a230b26e | 778 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
779 | if (ctx->ext.ecpointformats) { |
780 | s->ext.ecpointformats = | |
781 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
782 | ctx->ext.ecpointformats_len); | |
783 | if (!s->ext.ecpointformats) | |
0f113f3e | 784 | goto err; |
aff8c126 RS |
785 | s->ext.ecpointformats_len = |
786 | ctx->ext.ecpointformats_len; | |
787 | } | |
dbc6268f | 788 | #endif |
aff8c126 RS |
789 | if (ctx->ext.supportedgroups) { |
790 | s->ext.supportedgroups = | |
791 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
9e84a42d | 792 | ctx->ext.supportedgroups_len |
b92d7b62 | 793 | * sizeof(*ctx->ext.supportedgroups)); |
aff8c126 | 794 | if (!s->ext.supportedgroups) |
0f113f3e | 795 | goto err; |
aff8c126 | 796 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 797 | } |
dbc6268f | 798 | |
a230b26e | 799 | #ifndef OPENSSL_NO_NEXTPROTONEG |
aff8c126 | 800 | s->ext.npn = NULL; |
a230b26e | 801 | #endif |
6f017a8f | 802 | |
aff8c126 RS |
803 | if (s->ctx->ext.alpn) { |
804 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
805 | if (s->ext.alpn == NULL) | |
0f113f3e | 806 | goto err; |
aff8c126 RS |
807 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
808 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 809 | } |
d02b48c6 | 810 | |
696178ed | 811 | s->verified_chain = NULL; |
0f113f3e | 812 | s->verify_result = X509_V_OK; |
d02b48c6 | 813 | |
a974e64a MC |
814 | s->default_passwd_callback = ctx->default_passwd_callback; |
815 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
816 | ||
0f113f3e | 817 | s->method = ctx->method; |
d02b48c6 | 818 | |
44c04a2e MC |
819 | s->key_update = SSL_KEY_UPDATE_NONE; |
820 | ||
c9598459 MC |
821 | s->allow_early_data_cb = ctx->allow_early_data_cb; |
822 | s->allow_early_data_cb_data = ctx->allow_early_data_cb_data; | |
823 | ||
0f113f3e MC |
824 | if (!s->method->ssl_new(s)) |
825 | goto err; | |
d02b48c6 | 826 | |
0f113f3e | 827 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 828 | |
61986d32 | 829 | if (!SSL_clear(s)) |
69f68237 | 830 | goto err; |
58964a49 | 831 | |
25a807bc F |
832 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
833 | goto err; | |
58964a49 | 834 | |
ddac1974 | 835 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
836 | s->psk_client_callback = ctx->psk_client_callback; |
837 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 | 838 | #endif |
f46184bd MC |
839 | s->psk_find_session_cb = ctx->psk_find_session_cb; |
840 | s->psk_use_session_cb = ctx->psk_use_session_cb; | |
ddac1974 | 841 | |
9f5a87fd PY |
842 | s->async_cb = ctx->async_cb; |
843 | s->async_cb_arg = ctx->async_cb_arg; | |
844 | ||
07bbc92c MC |
845 | s->job = NULL; |
846 | ||
ed29e82a RP |
847 | #ifndef OPENSSL_NO_CT |
848 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 849 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
850 | goto err; |
851 | #endif | |
852 | ||
16203f7b | 853 | return s; |
0f113f3e | 854 | err: |
62adbcee | 855 | SSL_free(s); |
0f113f3e | 856 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 857 | return NULL; |
0f113f3e | 858 | } |
d02b48c6 | 859 | |
e417070c RS |
860 | int SSL_is_dtls(const SSL *s) |
861 | { | |
862 | return SSL_IS_DTLS(s) ? 1 : 0; | |
863 | } | |
864 | ||
c5ebfcab | 865 | int SSL_up_ref(SSL *s) |
a18a31e4 | 866 | { |
16203f7b | 867 | int i; |
c5ebfcab | 868 | |
2f545ae4 | 869 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
870 | return 0; |
871 | ||
872 | REF_PRINT_COUNT("SSL", s); | |
873 | REF_ASSERT_ISNT(i < 2); | |
874 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
875 | } |
876 | ||
0f113f3e MC |
877 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
878 | unsigned int sid_ctx_len) | |
879 | { | |
fe9edc9d | 880 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { |
0f113f3e MC |
881 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, |
882 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
883 | return 0; | |
884 | } | |
885 | ctx->sid_ctx_length = sid_ctx_len; | |
886 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
887 | |
888 | return 1; | |
0f113f3e | 889 | } |
4eb77b26 | 890 | |
0f113f3e MC |
891 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
892 | unsigned int sid_ctx_len) | |
893 | { | |
894 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
895 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
896 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
897 | return 0; | |
898 | } | |
899 | ssl->sid_ctx_length = sid_ctx_len; | |
900 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
901 | |
902 | return 1; | |
0f113f3e | 903 | } |
b4cadc6e | 904 | |
dc644fe2 | 905 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 906 | { |
16203f7b | 907 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 908 | ctx->generate_session_id = cb; |
16203f7b | 909 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
910 | return 1; |
911 | } | |
dc644fe2 GT |
912 | |
913 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 914 | { |
16203f7b | 915 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 916 | ssl->generate_session_id = cb; |
16203f7b | 917 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
918 | return 1; |
919 | } | |
dc644fe2 | 920 | |
f85c9904 | 921 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
922 | unsigned int id_len) |
923 | { | |
924 | /* | |
925 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
69687aa8 | 926 | * we can "construct" a session to give us the desired check - i.e. to |
0f113f3e MC |
927 | * find if there's a session in the hash table that would conflict with |
928 | * any new session built out of this id/id_len and the ssl_version in use | |
929 | * by this SSL. | |
930 | */ | |
931 | SSL_SESSION r, *p; | |
932 | ||
cbe29648 | 933 | if (id_len > sizeof(r.session_id)) |
0f113f3e MC |
934 | return 0; |
935 | ||
936 | r.ssl_version = ssl->version; | |
937 | r.session_id_length = id_len; | |
938 | memcpy(r.session_id, id, id_len); | |
939 | ||
e2bb9b9b TS |
940 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
941 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
942 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
943 | return (p != NULL); |
944 | } | |
dc644fe2 | 945 | |
bb7cd4e3 | 946 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
947 | { |
948 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
949 | } | |
bb7cd4e3 DSH |
950 | |
951 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
952 | { |
953 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
954 | } | |
926a56bf | 955 | |
bb7cd4e3 | 956 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
957 | { |
958 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
959 | } | |
bb7cd4e3 DSH |
960 | |
961 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
962 | { |
963 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
964 | } | |
bb7cd4e3 | 965 | |
919ba009 VD |
966 | int SSL_set1_host(SSL *s, const char *hostname) |
967 | { | |
968 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
969 | } | |
970 | ||
971 | int SSL_add1_host(SSL *s, const char *hostname) | |
972 | { | |
973 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
974 | } | |
975 | ||
976 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
977 | { | |
978 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
979 | } | |
980 | ||
4588cb44 | 981 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
982 | { |
983 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
984 | } | |
985 | ||
986 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
987 | { | |
988 | return dane_ctx_enable(&ctx->dane); | |
989 | } | |
990 | ||
5ae4ceb9 VD |
991 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
992 | { | |
993 | unsigned long orig = ctx->dane.flags; | |
994 | ||
995 | ctx->dane.flags |= flags; | |
996 | return orig; | |
997 | } | |
998 | ||
999 | unsigned long SSL_CTX_dane_clear_flags(SSL_CTX *ctx, unsigned long flags) | |
1000 | { | |
1001 | unsigned long orig = ctx->dane.flags; | |
1002 | ||
1003 | ctx->dane.flags &= ~flags; | |
1004 | return orig; | |
1005 | } | |
1006 | ||
919ba009 VD |
1007 | int SSL_dane_enable(SSL *s, const char *basedomain) |
1008 | { | |
b9aec69a | 1009 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
1010 | |
1011 | if (s->ctx->dane.mdmax == 0) { | |
1012 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
1013 | return 0; | |
1014 | } | |
1015 | if (dane->trecs != NULL) { | |
1016 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
1017 | return 0; | |
1018 | } | |
1019 | ||
8d887efa VD |
1020 | /* |
1021 | * Default SNI name. This rejects empty names, while set1_host below | |
1022 | * accepts them and disables host name checks. To avoid side-effects with | |
1023 | * invalid input, set the SNI name first. | |
1024 | */ | |
aff8c126 | 1025 | if (s->ext.hostname == NULL) { |
dccd20d1 | 1026 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 1027 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 1028 | return -1; |
8d887efa VD |
1029 | } |
1030 | } | |
1031 | ||
919ba009 VD |
1032 | /* Primary RFC6125 reference identifier */ |
1033 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
1034 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
1035 | return -1; | |
1036 | } | |
1037 | ||
919ba009 VD |
1038 | dane->mdpth = -1; |
1039 | dane->pdpth = -1; | |
1040 | dane->dctx = &s->ctx->dane; | |
1041 | dane->trecs = sk_danetls_record_new_null(); | |
1042 | ||
1043 | if (dane->trecs == NULL) { | |
1044 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
1045 | return -1; | |
1046 | } | |
1047 | return 1; | |
1048 | } | |
1049 | ||
5ae4ceb9 VD |
1050 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
1051 | { | |
1052 | unsigned long orig = ssl->dane.flags; | |
1053 | ||
1054 | ssl->dane.flags |= flags; | |
1055 | return orig; | |
1056 | } | |
1057 | ||
1058 | unsigned long SSL_dane_clear_flags(SSL *ssl, unsigned long flags) | |
1059 | { | |
1060 | unsigned long orig = ssl->dane.flags; | |
1061 | ||
1062 | ssl->dane.flags &= ~flags; | |
1063 | return orig; | |
1064 | } | |
1065 | ||
919ba009 VD |
1066 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
1067 | { | |
b9aec69a | 1068 | SSL_DANE *dane = &s->dane; |
919ba009 | 1069 | |
c0a445a9 | 1070 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
1071 | return -1; |
1072 | if (dane->mtlsa) { | |
1073 | if (mcert) | |
1074 | *mcert = dane->mcert; | |
1075 | if (mspki) | |
1076 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
1077 | } | |
1078 | return dane->mdpth; | |
1079 | } | |
1080 | ||
1081 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
1082 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
1083 | { | |
b9aec69a | 1084 | SSL_DANE *dane = &s->dane; |
919ba009 | 1085 | |
c0a445a9 | 1086 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
1087 | return -1; |
1088 | if (dane->mtlsa) { | |
1089 | if (usage) | |
1090 | *usage = dane->mtlsa->usage; | |
1091 | if (selector) | |
1092 | *selector = dane->mtlsa->selector; | |
1093 | if (mtype) | |
1094 | *mtype = dane->mtlsa->mtype; | |
1095 | if (data) | |
1096 | *data = dane->mtlsa->data; | |
1097 | if (dlen) | |
1098 | *dlen = dane->mtlsa->dlen; | |
1099 | } | |
1100 | return dane->mdpth; | |
1101 | } | |
1102 | ||
b9aec69a | 1103 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
1104 | { |
1105 | return &s->dane; | |
1106 | } | |
1107 | ||
1108 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
a41a6120 | 1109 | uint8_t mtype, unsigned const char *data, size_t dlen) |
919ba009 VD |
1110 | { |
1111 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
1112 | } | |
1113 | ||
a230b26e EK |
1114 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
1115 | uint8_t ord) | |
919ba009 VD |
1116 | { |
1117 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
1118 | } | |
1119 | ||
ccf11751 | 1120 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
1121 | { |
1122 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
1123 | } | |
ccf11751 DSH |
1124 | |
1125 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
1126 | { |
1127 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
1128 | } | |
ccf11751 | 1129 | |
7af31968 | 1130 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
1131 | { |
1132 | return ctx->param; | |
1133 | } | |
7af31968 DSH |
1134 | |
1135 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
1136 | { |
1137 | return ssl->param; | |
1138 | } | |
7af31968 | 1139 | |
a5ee80b9 | 1140 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
1141 | { |
1142 | ssl_cert_clear_certs(s->cert); | |
1143 | } | |
a5ee80b9 | 1144 | |
4f43d0e7 | 1145 | void SSL_free(SSL *s) |
0f113f3e MC |
1146 | { |
1147 | int i; | |
58964a49 | 1148 | |
e6e9170d RS |
1149 | if (s == NULL) |
1150 | return; | |
2f545ae4 | 1151 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 1152 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
1153 | if (i > 0) |
1154 | return; | |
f3f1cf84 | 1155 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 1156 | |
222561fe | 1157 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 1158 | dane_final(&s->dane); |
0f113f3e MC |
1159 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
1160 | ||
50ec7505 BP |
1161 | RECORD_LAYER_release(&s->rlayer); |
1162 | ||
b77f3ed1 | 1163 | /* Ignore return value */ |
2e7dc7cd MC |
1164 | ssl_free_wbio_buffer(s); |
1165 | ||
65e2d672 | 1166 | BIO_free_all(s->wbio); |
50ec7505 | 1167 | s->wbio = NULL; |
325cfa85 | 1168 | BIO_free_all(s->rbio); |
50ec7505 | 1169 | s->rbio = NULL; |
0f113f3e | 1170 | |
25aaa98a | 1171 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
1172 | |
1173 | /* add extra stuff */ | |
25aaa98a RS |
1174 | sk_SSL_CIPHER_free(s->cipher_list); |
1175 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
f865b081 | 1176 | sk_SSL_CIPHER_free(s->tls13_ciphersuites); |
eee2a6a7 | 1177 | sk_SSL_CIPHER_free(s->peer_ciphers); |
0f113f3e MC |
1178 | |
1179 | /* Make the next call work :-) */ | |
1180 | if (s->session != NULL) { | |
1181 | ssl_clear_bad_session(s); | |
1182 | SSL_SESSION_free(s->session); | |
1183 | } | |
9368f865 | 1184 | SSL_SESSION_free(s->psksession); |
add8d0e9 | 1185 | OPENSSL_free(s->psksession_id); |
0f113f3e | 1186 | |
d31fb0b5 | 1187 | clear_ciphers(s); |
d02b48c6 | 1188 | |
e0e920b1 | 1189 | ssl_cert_free(s->cert); |
29948ac8 | 1190 | OPENSSL_free(s->shared_sigalgs); |
0f113f3e | 1191 | /* Free up if allocated */ |
d02b48c6 | 1192 | |
aff8c126 | 1193 | OPENSSL_free(s->ext.hostname); |
222da979 | 1194 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1195 | #ifndef OPENSSL_NO_EC |
aff8c126 | 1196 | OPENSSL_free(s->ext.ecpointformats); |
cd0fb43c | 1197 | OPENSSL_free(s->ext.peer_ecpointformats); |
187753e0 | 1198 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1199 | OPENSSL_free(s->ext.supportedgroups); |
45436e61 | 1200 | OPENSSL_free(s->ext.peer_supportedgroups); |
aff8c126 | 1201 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1202 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1203 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1204 | #endif |
ed29e82a RP |
1205 | #ifndef OPENSSL_NO_CT |
1206 | SCT_LIST_free(s->scts); | |
aff8c126 | 1207 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1208 | #endif |
aff8c126 RS |
1209 | OPENSSL_free(s->ext.ocsp.resp); |
1210 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 1211 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1212 | OPENSSL_free(s->clienthello); |
9d75dce3 TS |
1213 | OPENSSL_free(s->pha_context); |
1214 | EVP_MD_CTX_free(s->pha_dgst); | |
0f113f3e | 1215 | |
fa7c2637 | 1216 | sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free); |
98732979 | 1217 | sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free); |
0f113f3e | 1218 | |
696178ed DSH |
1219 | sk_X509_pop_free(s->verified_chain, X509_free); |
1220 | ||
0f113f3e MC |
1221 | if (s->method != NULL) |
1222 | s->method->ssl_free(s); | |
1223 | ||
e0e920b1 | 1224 | SSL_CTX_free(s->ctx); |
7c3908dd | 1225 | |
ff75a257 MC |
1226 | ASYNC_WAIT_CTX_free(s->waitctx); |
1227 | ||
e481f9b9 | 1228 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1229 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1230 | #endif |
1231 | ||
e783bae2 | 1232 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1233 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1234 | #endif |
1235 | ||
16203f7b AG |
1236 | CRYPTO_THREAD_lock_free(s->lock); |
1237 | ||
0f113f3e MC |
1238 | OPENSSL_free(s); |
1239 | } | |
1240 | ||
65e2d672 | 1241 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1242 | { |
65e2d672 | 1243 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1244 | s->rbio = rbio; |
1245 | } | |
1246 | ||
65e2d672 | 1247 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1248 | { |
1249 | /* | |
1250 | * If the output buffering BIO is still in place, remove it | |
1251 | */ | |
2e7dc7cd MC |
1252 | if (s->bbio != NULL) |
1253 | s->wbio = BIO_pop(s->wbio); | |
1254 | ||
65e2d672 | 1255 | BIO_free_all(s->wbio); |
0f113f3e | 1256 | s->wbio = wbio; |
2e7dc7cd MC |
1257 | |
1258 | /* Re-attach |bbio| to the new |wbio|. */ | |
1259 | if (s->bbio != NULL) | |
1260 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1261 | } |
d02b48c6 | 1262 | |
3ffbe008 MC |
1263 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1264 | { | |
65e2d672 MC |
1265 | /* |
1266 | * For historical reasons, this function has many different cases in | |
1267 | * ownership handling. | |
1268 | */ | |
1269 | ||
1270 | /* If nothing has changed, do nothing */ | |
1271 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1272 | return; | |
1273 | ||
1274 | /* | |
1275 | * If the two arguments are equal then one fewer reference is granted by the | |
1276 | * caller than we want to take | |
1277 | */ | |
1278 | if (rbio != NULL && rbio == wbio) | |
1279 | BIO_up_ref(rbio); | |
1280 | ||
1281 | /* | |
1282 | * If only the wbio is changed only adopt one reference. | |
1283 | */ | |
1284 | if (rbio == SSL_get_rbio(s)) { | |
1285 | SSL_set0_wbio(s, wbio); | |
1286 | return; | |
1287 | } | |
1288 | /* | |
1289 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1290 | * changed AND the rbio and wbio were originally different, then we only | |
1291 | * adopt one reference. | |
1292 | */ | |
1293 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1294 | SSL_set0_rbio(s, rbio); | |
1295 | return; | |
1296 | } | |
1297 | ||
1298 | /* Otherwise, adopt both references. */ | |
1299 | SSL_set0_rbio(s, rbio); | |
1300 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1301 | } |
1302 | ||
0821bcd4 | 1303 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1304 | { |
2e7dc7cd | 1305 | return s->rbio; |
0f113f3e | 1306 | } |
d02b48c6 | 1307 | |
0821bcd4 | 1308 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1309 | { |
2e7dc7cd MC |
1310 | if (s->bbio != NULL) { |
1311 | /* | |
1312 | * If |bbio| is active, the true caller-configured BIO is its | |
1313 | * |next_bio|. | |
1314 | */ | |
1315 | return BIO_next(s->bbio); | |
1316 | } | |
1317 | return s->wbio; | |
0f113f3e | 1318 | } |
d02b48c6 | 1319 | |
0821bcd4 | 1320 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1321 | { |
2e7dc7cd | 1322 | return SSL_get_rfd(s); |
0f113f3e | 1323 | } |
24cbf3ef | 1324 | |
0821bcd4 | 1325 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1326 | { |
1327 | int ret = -1; | |
1328 | BIO *b, *r; | |
1329 | ||
1330 | b = SSL_get_rbio(s); | |
1331 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1332 | if (r != NULL) | |
1333 | BIO_get_fd(r, &ret); | |
26a7d938 | 1334 | return ret; |
0f113f3e | 1335 | } |
d02b48c6 | 1336 | |
0821bcd4 | 1337 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1338 | { |
1339 | int ret = -1; | |
1340 | BIO *b, *r; | |
1341 | ||
1342 | b = SSL_get_wbio(s); | |
1343 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1344 | if (r != NULL) | |
1345 | BIO_get_fd(r, &ret); | |
26a7d938 | 1346 | return ret; |
0f113f3e | 1347 | } |
24cbf3ef | 1348 | |
bc36ee62 | 1349 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1350 | int SSL_set_fd(SSL *s, int fd) |
1351 | { | |
1352 | int ret = 0; | |
1353 | BIO *bio = NULL; | |
1354 | ||
1355 | bio = BIO_new(BIO_s_socket()); | |
1356 | ||
1357 | if (bio == NULL) { | |
1358 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1359 | goto err; | |
1360 | } | |
1361 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1362 | SSL_set_bio(s, bio, bio); | |
50ec7505 BP |
1363 | #ifndef OPENSSL_NO_KTLS |
1364 | /* | |
1365 | * The new socket is created successfully regardless of ktls_enable. | |
1366 | * ktls_enable doesn't change any functionality of the socket, except | |
1367 | * changing the setsockopt to enable the processing of ktls_start. | |
1368 | * Thus, it is not a problem to call it for non-TLS sockets. | |
1369 | */ | |
1370 | ktls_enable(fd); | |
1371 | #endif /* OPENSSL_NO_KTLS */ | |
0f113f3e MC |
1372 | ret = 1; |
1373 | err: | |
26a7d938 | 1374 | return ret; |
0f113f3e | 1375 | } |
d02b48c6 | 1376 | |
0f113f3e MC |
1377 | int SSL_set_wfd(SSL *s, int fd) |
1378 | { | |
2e7dc7cd | 1379 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1380 | |
2e7dc7cd MC |
1381 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1382 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1383 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1384 | |
1385 | if (bio == NULL) { | |
1386 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1387 | return 0; |
0f113f3e MC |
1388 | } |
1389 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1390 | SSL_set0_wbio(s, bio); |
50ec7505 BP |
1391 | #ifndef OPENSSL_NO_KTLS |
1392 | /* | |
1393 | * The new socket is created successfully regardless of ktls_enable. | |
1394 | * ktls_enable doesn't change any functionality of the socket, except | |
1395 | * changing the setsockopt to enable the processing of ktls_start. | |
1396 | * Thus, it is not a problem to call it for non-TLS sockets. | |
1397 | */ | |
1398 | ktls_enable(fd); | |
1399 | #endif /* OPENSSL_NO_KTLS */ | |
2e7dc7cd | 1400 | } else { |
65e2d672 MC |
1401 | BIO_up_ref(rbio); |
1402 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1403 | } |
1404 | return 1; | |
0f113f3e MC |
1405 | } |
1406 | ||
1407 | int SSL_set_rfd(SSL *s, int fd) | |
1408 | { | |
2e7dc7cd | 1409 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1410 | |
2e7dc7cd MC |
1411 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1412 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1413 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1414 | |
1415 | if (bio == NULL) { | |
1416 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1417 | return 0; |
0f113f3e MC |
1418 | } |
1419 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1420 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1421 | } else { |
65e2d672 MC |
1422 | BIO_up_ref(wbio); |
1423 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1424 | } |
1425 | ||
1426 | return 1; | |
0f113f3e MC |
1427 | } |
1428 | #endif | |
ca03109c BM |
1429 | |
1430 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1431 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1432 | { |
1433 | size_t ret = 0; | |
1434 | ||
555cbb32 TS |
1435 | ret = s->s3.tmp.finish_md_len; |
1436 | if (count > ret) | |
1437 | count = ret; | |
1438 | memcpy(buf, s->s3.tmp.finish_md, count); | |
0f113f3e MC |
1439 | return ret; |
1440 | } | |
ca03109c BM |
1441 | |
1442 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1443 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1444 | { |
1445 | size_t ret = 0; | |
ca03109c | 1446 | |
555cbb32 TS |
1447 | ret = s->s3.tmp.peer_finish_md_len; |
1448 | if (count > ret) | |
1449 | count = ret; | |
1450 | memcpy(buf, s->s3.tmp.peer_finish_md, count); | |
0f113f3e MC |
1451 | return ret; |
1452 | } | |
ca03109c | 1453 | |
0821bcd4 | 1454 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e | 1455 | { |
26a7d938 | 1456 | return s->verify_mode; |
0f113f3e | 1457 | } |
d02b48c6 | 1458 | |
0821bcd4 | 1459 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1460 | { |
1461 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1462 | } | |
7f89714e | 1463 | |
0f113f3e | 1464 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
26a7d938 | 1465 | return s->verify_callback; |
0f113f3e | 1466 | } |
d02b48c6 | 1467 | |
0821bcd4 | 1468 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e | 1469 | { |
26a7d938 | 1470 | return ctx->verify_mode; |
0f113f3e | 1471 | } |
d02b48c6 | 1472 | |
0821bcd4 | 1473 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1474 | { |
1475 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1476 | } | |
1477 | ||
1478 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
26a7d938 | 1479 | return ctx->default_verify_callback; |
0f113f3e MC |
1480 | } |
1481 | ||
1482 | void SSL_set_verify(SSL *s, int mode, | |
1483 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1484 | { | |
1485 | s->verify_mode = mode; | |
1486 | if (callback != NULL) | |
1487 | s->verify_callback = callback; | |
1488 | } | |
1489 | ||
1490 | void SSL_set_verify_depth(SSL *s, int depth) | |
1491 | { | |
1492 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1493 | } | |
1494 | ||
1495 | void SSL_set_read_ahead(SSL *s, int yes) | |
1496 | { | |
52e1d7b1 | 1497 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1498 | } |
d02b48c6 | 1499 | |
0821bcd4 | 1500 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1501 | { |
52e1d7b1 | 1502 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1503 | } |
d02b48c6 | 1504 | |
0821bcd4 | 1505 | int SSL_pending(const SSL *s) |
0f113f3e | 1506 | { |
8b0e934a MC |
1507 | size_t pending = s->method->ssl_pending(s); |
1508 | ||
0f113f3e MC |
1509 | /* |
1510 | * SSL_pending cannot work properly if read-ahead is enabled | |
1511 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1512 | * impossible to fix since SSL_pending cannot report errors that may be | |
1513 | * observed while scanning the new data. (Note that SSL_pending() is | |
1514 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1515 | * |
1516 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1517 | * we just return INT_MAX. | |
0f113f3e | 1518 | */ |
348240c6 | 1519 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1520 | } |
d02b48c6 | 1521 | |
49580f25 MC |
1522 | int SSL_has_pending(const SSL *s) |
1523 | { | |
1524 | /* | |
1525 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1526 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1527 | * bytes available). Unlike SSL_pending() this will take into account | |
1528 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1529 | * data. That data may not result in any application data, or we may fail | |
1530 | * to parse the records for some reason. | |
1531 | */ | |
b8c49611 | 1532 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1533 | return 1; |
1534 | ||
1535 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1536 | } | |
1537 | ||
0821bcd4 | 1538 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1539 | { |
1540 | X509 *r; | |
d02b48c6 | 1541 | |
0f113f3e MC |
1542 | if ((s == NULL) || (s->session == NULL)) |
1543 | r = NULL; | |
1544 | else | |
1545 | r = s->session->peer; | |
d02b48c6 | 1546 | |
0f113f3e | 1547 | if (r == NULL) |
26a7d938 | 1548 | return r; |
d02b48c6 | 1549 | |
05f0fb9f | 1550 | X509_up_ref(r); |
0f113f3e | 1551 | |
26a7d938 | 1552 | return r; |
0f113f3e | 1553 | } |
d02b48c6 | 1554 | |
0821bcd4 | 1555 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1556 | { |
1557 | STACK_OF(X509) *r; | |
1558 | ||
c34b0f99 | 1559 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1560 | r = NULL; |
1561 | else | |
c34b0f99 | 1562 | r = s->session->peer_chain; |
0f113f3e MC |
1563 | |
1564 | /* | |
1565 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1566 | * we are a server, it does not. | |
1567 | */ | |
1568 | ||
26a7d938 | 1569 | return r; |
0f113f3e MC |
1570 | } |
1571 | ||
1572 | /* | |
1573 | * Now in theory, since the calling process own 't' it should be safe to | |
1574 | * modify. We need to be able to read f without being hassled | |
1575 | */ | |
17dd65e6 | 1576 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1577 | { |
16203f7b | 1578 | int i; |
0f113f3e | 1579 | /* Do we need to to SSL locking? */ |
61986d32 | 1580 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1581 | return 0; |
69f68237 | 1582 | } |
0f113f3e MC |
1583 | |
1584 | /* | |
87d9cafa | 1585 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1586 | */ |
1587 | if (t->method != f->method) { | |
919ba009 VD |
1588 | t->method->ssl_free(t); |
1589 | t->method = f->method; | |
1590 | if (t->method->ssl_new(t) == 0) | |
1591 | return 0; | |
0f113f3e MC |
1592 | } |
1593 | ||
2f545ae4 | 1594 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1595 | ssl_cert_free(t->cert); |
1596 | t->cert = f->cert; | |
348240c6 | 1597 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1598 | return 0; |
69f68237 | 1599 | } |
17dd65e6 MC |
1600 | |
1601 | return 1; | |
0f113f3e | 1602 | } |
d02b48c6 | 1603 | |
58964a49 | 1604 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1605 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1606 | { |
a230b26e EK |
1607 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1608 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
26a7d938 | 1609 | return 0; |
0f113f3e MC |
1610 | } |
1611 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1612 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
26a7d938 | 1613 | return 0; |
0f113f3e | 1614 | } |
26a7d938 K |
1615 | return X509_check_private_key |
1616 | (ctx->cert->key->x509, ctx->cert->key->privatekey); | |
0f113f3e | 1617 | } |
d02b48c6 | 1618 | |
58964a49 | 1619 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1620 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1621 | { |
1622 | if (ssl == NULL) { | |
1623 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
26a7d938 | 1624 | return 0; |
0f113f3e | 1625 | } |
0f113f3e MC |
1626 | if (ssl->cert->key->x509 == NULL) { |
1627 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
26a7d938 | 1628 | return 0; |
0f113f3e MC |
1629 | } |
1630 | if (ssl->cert->key->privatekey == NULL) { | |
1631 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
26a7d938 | 1632 | return 0; |
0f113f3e | 1633 | } |
26a7d938 K |
1634 | return X509_check_private_key(ssl->cert->key->x509, |
1635 | ssl->cert->key->privatekey); | |
0f113f3e | 1636 | } |
d02b48c6 | 1637 | |
07bbc92c MC |
1638 | int SSL_waiting_for_async(SSL *s) |
1639 | { | |
e8aa8b6c | 1640 | if (s->job) |
82676094 MC |
1641 | return 1; |
1642 | ||
07bbc92c MC |
1643 | return 0; |
1644 | } | |
1645 | ||
ff75a257 | 1646 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1647 | { |
ff75a257 MC |
1648 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1649 | ||
1650 | if (ctx == NULL) | |
1651 | return 0; | |
1652 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1653 | } | |
f4da39d2 | 1654 | |
ff75a257 MC |
1655 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1656 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1657 | { | |
1658 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1659 | ||
1660 | if (ctx == NULL) | |
1661 | return 0; | |
1662 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1663 | numdelfds); | |
f4da39d2 MC |
1664 | } |
1665 | ||
9f5a87fd PY |
1666 | int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback) |
1667 | { | |
1668 | ctx->async_cb = callback; | |
1669 | return 1; | |
1670 | } | |
1671 | ||
1672 | int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg) | |
1673 | { | |
1674 | ctx->async_cb_arg = arg; | |
1675 | return 1; | |
1676 | } | |
1677 | ||
1678 | int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback) | |
1679 | { | |
1680 | s->async_cb = callback; | |
1681 | return 1; | |
1682 | } | |
1683 | ||
1684 | int SSL_set_async_callback_arg(SSL *s, void *arg) | |
1685 | { | |
1686 | s->async_cb_arg = arg; | |
1687 | return 1; | |
1688 | } | |
1689 | ||
1690 | int SSL_get_async_status(SSL *s, int *status) | |
1691 | { | |
1692 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1693 | ||
1694 | if (ctx == NULL) | |
1695 | return 0; | |
1696 | *status = ASYNC_WAIT_CTX_get_status(ctx); | |
1697 | return 1; | |
1698 | } | |
1699 | ||
4f43d0e7 | 1700 | int SSL_accept(SSL *s) |
0f113f3e | 1701 | { |
c4c32155 | 1702 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1703 | /* Not properly initialized yet */ |
1704 | SSL_set_accept_state(s); | |
07bbc92c | 1705 | } |
add2f5ca MC |
1706 | |
1707 | return SSL_do_handshake(s); | |
0f113f3e | 1708 | } |
d02b48c6 | 1709 | |
4f43d0e7 | 1710 | int SSL_connect(SSL *s) |
0f113f3e | 1711 | { |
c4c32155 | 1712 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1713 | /* Not properly initialized yet */ |
1714 | SSL_set_connect_state(s); | |
add2f5ca | 1715 | } |
b31b04d9 | 1716 | |
add2f5ca | 1717 | return SSL_do_handshake(s); |
0f113f3e | 1718 | } |
d02b48c6 | 1719 | |
0821bcd4 | 1720 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e | 1721 | { |
26a7d938 | 1722 | return s->method->get_timeout(); |
0f113f3e MC |
1723 | } |
1724 | ||
9f5a87fd PY |
1725 | static int ssl_async_wait_ctx_cb(void *arg) |
1726 | { | |
1727 | SSL *s = (SSL *)arg; | |
1728 | ||
1729 | return s->async_cb(s, s->async_cb_arg); | |
1730 | } | |
1731 | ||
7fecbf6f | 1732 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1733 | int (*func) (void *)) |
1734 | { | |
add2f5ca | 1735 | int ret; |
ff75a257 MC |
1736 | if (s->waitctx == NULL) { |
1737 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1738 | if (s->waitctx == NULL) | |
1739 | return -1; | |
9f5a87fd PY |
1740 | if (s->async_cb != NULL |
1741 | && !ASYNC_WAIT_CTX_set_callback | |
1742 | (s->waitctx, ssl_async_wait_ctx_cb, s)) | |
1743 | return -1; | |
ff75a257 | 1744 | } |
e8aa8b6c | 1745 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1746 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1747 | case ASYNC_ERR: |
1748 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1749 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1750 | return -1; |
1751 | case ASYNC_PAUSE: | |
1752 | s->rwstate = SSL_ASYNC_PAUSED; | |
1753 | return -1; | |
fc7f190c MC |
1754 | case ASYNC_NO_JOBS: |
1755 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1756 | return -1; | |
add2f5ca MC |
1757 | case ASYNC_FINISH: |
1758 | s->job = NULL; | |
1759 | return ret; | |
1760 | default: | |
1761 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1762 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1763 | /* Shouldn't happen */ |
1764 | return -1; | |
1765 | } | |
1766 | } | |
07bbc92c | 1767 | |
add2f5ca | 1768 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1769 | { |
1770 | struct ssl_async_args *args; | |
1771 | SSL *s; | |
1772 | void *buf; | |
348240c6 | 1773 | size_t num; |
07bbc92c MC |
1774 | |
1775 | args = (struct ssl_async_args *)vargs; | |
1776 | s = args->s; | |
1777 | buf = args->buf; | |
1778 | num = args->num; | |
ec447924 MC |
1779 | switch (args->type) { |
1780 | case READFUNC: | |
7ee8627f | 1781 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1782 | case WRITEFUNC: |
7ee8627f | 1783 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1784 | case OTHERFUNC: |
1785 | return args->f.func_other(s); | |
1786 | } | |
1787 | return -1; | |
07bbc92c MC |
1788 | } |
1789 | ||
4ee7d3f9 | 1790 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1791 | { |
c4c32155 | 1792 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1793 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1794 | return -1; |
1795 | } | |
1796 | ||
1797 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1798 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1799 | return 0; |
0f113f3e | 1800 | } |
07bbc92c | 1801 | |
564547e4 MC |
1802 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1803 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1804 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1805 | return 0; | |
1806 | } | |
564547e4 MC |
1807 | /* |
1808 | * If we are a client and haven't received the ServerHello etc then we | |
1809 | * better do that | |
1810 | */ | |
1811 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1812 | |
e8aa8b6c | 1813 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1814 | struct ssl_async_args args; |
eda75751 | 1815 | int ret; |
add2f5ca MC |
1816 | |
1817 | args.s = s; | |
1818 | args.buf = buf; | |
1819 | args.num = num; | |
ec447924 MC |
1820 | args.type = READFUNC; |
1821 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1822 | |
eda75751 | 1823 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1824 | *readbytes = s->asyncrw; |
eda75751 | 1825 | return ret; |
07bbc92c | 1826 | } else { |
54105ddd | 1827 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1828 | } |
0f113f3e MC |
1829 | } |
1830 | ||
4ee7d3f9 | 1831 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1832 | { |
1833 | int ret; | |
54105ddd | 1834 | size_t readbytes; |
eda75751 MC |
1835 | |
1836 | if (num < 0) { | |
4ee7d3f9 | 1837 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1838 | return -1; |
1839 | } | |
1840 | ||
4ee7d3f9 | 1841 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1842 | |
1843 | /* | |
1844 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1845 | * <= INT_MAX | |
1846 | */ | |
1847 | if (ret > 0) | |
54105ddd | 1848 | ret = (int)readbytes; |
eda75751 MC |
1849 | |
1850 | return ret; | |
1851 | } | |
1852 | ||
4ee7d3f9 KR |
1853 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1854 | { | |
1855 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1856 | ||
1857 | if (ret < 0) | |
1858 | ret = 0; | |
1859 | return ret; | |
1860 | } | |
1861 | ||
f533fbd4 | 1862 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1863 | { |
1864 | int ret; | |
1865 | ||
1866 | if (!s->server) { | |
f533fbd4 MC |
1867 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1868 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1869 | } |
1870 | ||
d781d247 MC |
1871 | switch (s->early_data_state) { |
1872 | case SSL_EARLY_DATA_NONE: | |
1873 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1874 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1875 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1876 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1877 | } |
1878 | /* fall through */ | |
1879 | ||
1880 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1881 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1882 | ret = SSL_accept(s); | |
1883 | if (ret <= 0) { | |
1884 | /* NBIO or error */ | |
1885 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1886 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1887 | } |
1888 | /* fall through */ | |
1889 | ||
1890 | case SSL_EARLY_DATA_READ_RETRY: | |
1891 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1892 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1893 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1894 | /* | |
ef6c191b MC |
1895 | * State machine will update early_data_state to |
1896 | * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData | |
1897 | * message | |
d781d247 MC |
1898 | */ |
1899 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1900 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1901 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1902 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1903 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1904 | } |
1905 | } else { | |
1906 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1907 | } | |
1908 | *readbytes = 0; | |
f533fbd4 | 1909 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1910 | |
1911 | default: | |
f533fbd4 MC |
1912 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1913 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1914 | } |
1915 | } | |
1916 | ||
f5b519c4 | 1917 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1918 | { |
1919 | return s->ext.early_data; | |
1920 | } | |
1921 | ||
4ee7d3f9 | 1922 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1923 | { |
c4c32155 | 1924 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1925 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1926 | return -1; |
1927 | } | |
1928 | ||
1929 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1930 | return 0; |
0f113f3e | 1931 | } |
e8aa8b6c | 1932 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1933 | struct ssl_async_args args; |
eda75751 | 1934 | int ret; |
0f113f3e | 1935 | |
add2f5ca MC |
1936 | args.s = s; |
1937 | args.buf = buf; | |
1938 | args.num = num; | |
ec447924 MC |
1939 | args.type = READFUNC; |
1940 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1941 | |
eda75751 | 1942 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1943 | *readbytes = s->asyncrw; |
eda75751 | 1944 | return ret; |
add2f5ca | 1945 | } else { |
54105ddd | 1946 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1947 | } |
07bbc92c MC |
1948 | } |
1949 | ||
4ee7d3f9 | 1950 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1951 | { |
1952 | int ret; | |
4ee7d3f9 | 1953 | size_t readbytes; |
7ee8627f MC |
1954 | |
1955 | if (num < 0) { | |
4ee7d3f9 | 1956 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1957 | return -1; |
1958 | } | |
1959 | ||
4ee7d3f9 | 1960 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1961 | |
1962 | /* | |
1963 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1964 | * <= INT_MAX | |
1965 | */ | |
1966 | if (ret > 0) | |
4ee7d3f9 | 1967 | ret = (int)readbytes; |
7ee8627f MC |
1968 | |
1969 | return ret; | |
1970 | } | |
1971 | ||
4ee7d3f9 KR |
1972 | |
1973 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1974 | { | |
1975 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1976 | ||
1977 | if (ret < 0) | |
1978 | ret = 0; | |
1979 | return ret; | |
1980 | } | |
1981 | ||
1982 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1983 | { |
c4c32155 | 1984 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1985 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1986 | return -1; |
1987 | } | |
1988 | ||
1989 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1990 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1991 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1992 | return -1; | |
0f113f3e | 1993 | } |
07bbc92c | 1994 | |
ef6c191b | 1995 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
09f28874 MC |
1996 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1997 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1998 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1999 | return 0; |
0a5ece5b | 2000 | } |
564547e4 MC |
2001 | /* If we are a client and haven't sent the Finished we better do that */ |
2002 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 2003 | |
e8aa8b6c | 2004 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 2005 | int ret; |
add2f5ca MC |
2006 | struct ssl_async_args args; |
2007 | ||
2008 | args.s = s; | |
2009 | args.buf = (void *)buf; | |
2010 | args.num = num; | |
ec447924 MC |
2011 | args.type = WRITEFUNC; |
2012 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 2013 | |
7ee8627f MC |
2014 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
2015 | *written = s->asyncrw; | |
2016 | return ret; | |
07bbc92c | 2017 | } else { |
7ee8627f | 2018 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 2019 | } |
0f113f3e | 2020 | } |
d02b48c6 | 2021 | |
7c3a7561 BP |
2022 | ossl_ssize_t SSL_sendfile(SSL *s, int fd, off_t offset, size_t size, int flags) |
2023 | { | |
2024 | ossl_ssize_t ret; | |
2025 | ||
2026 | if (s->handshake_func == NULL) { | |
2027 | SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED); | |
2028 | return -1; | |
2029 | } | |
2030 | ||
2031 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
2032 | s->rwstate = SSL_NOTHING; | |
2033 | SSLerr(SSL_F_SSL_SENDFILE, SSL_R_PROTOCOL_IS_SHUTDOWN); | |
2034 | return -1; | |
2035 | } | |
2036 | ||
2037 | if (!BIO_get_ktls_send(s->wbio)) { | |
2038 | SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED); | |
2039 | return -1; | |
2040 | } | |
2041 | ||
2042 | /* If we have an alert to send, lets send it */ | |
2043 | if (s->s3.alert_dispatch) { | |
2044 | ret = (ossl_ssize_t)s->method->ssl_dispatch_alert(s); | |
2045 | if (ret <= 0) { | |
2046 | /* SSLfatal() already called if appropriate */ | |
2047 | return ret; | |
2048 | } | |
2049 | /* if it went, fall through and send more stuff */ | |
2050 | } | |
2051 | ||
2052 | s->rwstate = SSL_WRITING; | |
2053 | if (BIO_flush(s->wbio) <= 0) { | |
2054 | if (!BIO_should_retry(s->wbio)) { | |
2055 | s->rwstate = SSL_NOTHING; | |
2056 | } else { | |
2057 | #ifdef EAGAIN | |
2058 | set_sys_error(EAGAIN); | |
2059 | #endif | |
2060 | } | |
2061 | return -1; | |
2062 | } | |
2063 | ||
712c0942 JB |
2064 | #ifdef OPENSSL_NO_KTLS |
2065 | ERR_raise_data(ERR_LIB_SYS, ERR_R_INTERNAL_ERROR, "calling sendfile()"); | |
2066 | return -1; | |
7c3a7561 | 2067 | #else |
712c0942 | 2068 | ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags); |
7c3a7561 BP |
2069 | if (ret < 0) { |
2070 | #if defined(EAGAIN) && defined(EINTR) && defined(EBUSY) | |
2071 | if ((get_last_sys_error() == EAGAIN) || | |
2072 | (get_last_sys_error() == EINTR) || | |
2073 | (get_last_sys_error() == EBUSY)) | |
2074 | BIO_set_retry_write(s->wbio); | |
2075 | else | |
2076 | #endif | |
7c3a7561 | 2077 | SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED); |
7c3a7561 BP |
2078 | return ret; |
2079 | } | |
2080 | s->rwstate = SSL_NOTHING; | |
2081 | return ret; | |
712c0942 | 2082 | #endif |
7c3a7561 BP |
2083 | } |
2084 | ||
4ee7d3f9 KR |
2085 | int SSL_write(SSL *s, const void *buf, int num) |
2086 | { | |
2087 | int ret; | |
2088 | size_t written; | |
2089 | ||
2090 | if (num < 0) { | |
2091 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
2092 | return -1; | |
2093 | } | |
2094 | ||
2095 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
2096 | ||
2097 | /* | |
2098 | * The cast is safe here because ret should be <= INT_MAX because num is | |
2099 | * <= INT_MAX | |
2100 | */ | |
2101 | if (ret > 0) | |
2102 | ret = (int)written; | |
2103 | ||
2104 | return ret; | |
2105 | } | |
2106 | ||
2107 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
2108 | { | |
2109 | int ret = ssl_write_internal(s, buf, num, written); | |
2110 | ||
2111 | if (ret < 0) | |
2112 | ret = 0; | |
2113 | return ret; | |
2114 | } | |
2115 | ||
0665b4ed | 2116 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 | 2117 | { |
a0cb628b | 2118 | int ret, early_data_state; |
2a8db717 | 2119 | size_t writtmp; |
f7414b08 | 2120 | uint32_t partialwrite; |
49e7fe12 | 2121 | |
49e7fe12 MC |
2122 | switch (s->early_data_state) { |
2123 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
2124 | if (s->server |
2125 | || !SSL_in_before(s) | |
add8d0e9 MC |
2126 | || ((s->session == NULL || s->session->ext.max_early_data == 0) |
2127 | && (s->psk_use_session_cb == NULL))) { | |
09f28874 MC |
2128 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
2129 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
2130 | return 0; |
2131 | } | |
2132 | /* fall through */ | |
2133 | ||
2134 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
2135 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
2136 | ret = SSL_connect(s); | |
2137 | if (ret <= 0) { | |
2138 | /* NBIO or error */ | |
2139 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
2140 | return 0; | |
2141 | } | |
2142 | /* fall through */ | |
2143 | ||
2144 | case SSL_EARLY_DATA_WRITE_RETRY: | |
2145 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
f7414b08 MC |
2146 | /* |
2147 | * We disable partial write for early data because we don't keep track | |
2148 | * of how many bytes we've written between the SSL_write_ex() call and | |
2149 | * the flush if the flush needs to be retried) | |
2150 | */ | |
2151 | partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE; | |
2152 | s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
2a8db717 | 2153 | ret = SSL_write_ex(s, buf, num, &writtmp); |
f7414b08 | 2154 | s->mode |= partialwrite; |
2a8db717 MC |
2155 | if (!ret) { |
2156 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
2157 | return ret; | |
2158 | } | |
2159 | s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH; | |
2160 | /* fall through */ | |
2161 | ||
2162 | case SSL_EARLY_DATA_WRITE_FLUSH: | |
2163 | /* The buffering BIO is still in place so we need to flush it */ | |
2164 | if (statem_flush(s) != 1) | |
2165 | return 0; | |
2a8db717 | 2166 | *written = num; |
49e7fe12 | 2167 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; |
2a8db717 | 2168 | return 1; |
49e7fe12 | 2169 | |
116d0da5 | 2170 | case SSL_EARLY_DATA_FINISHED_READING: |
a0cb628b MC |
2171 | case SSL_EARLY_DATA_READ_RETRY: |
2172 | early_data_state = s->early_data_state; | |
09f28874 MC |
2173 | /* We are a server writing to an unauthenticated client */ |
2174 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
2175 | ret = SSL_write_ex(s, buf, num, written); | |
5fe37157 MC |
2176 | /* The buffering BIO is still in place */ |
2177 | if (ret) | |
2178 | (void)BIO_flush(s->wbio); | |
bbea9f2c | 2179 | s->early_data_state = early_data_state; |
09f28874 MC |
2180 | return ret; |
2181 | ||
49e7fe12 | 2182 | default: |
09f28874 | 2183 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
2184 | return 0; |
2185 | } | |
2186 | } | |
2187 | ||
4f43d0e7 | 2188 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
2189 | { |
2190 | /* | |
2191 | * Note that this function behaves differently from what one might | |
2192 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
2193 | * calling it once is usually not enough, even if blocking I/O is used | |
2194 | * (see ssl3_shutdown). | |
2195 | */ | |
2196 | ||
c4c32155 | 2197 | if (s->handshake_func == NULL) { |
0f113f3e MC |
2198 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
2199 | return -1; | |
2200 | } | |
2201 | ||
64f9f406 | 2202 | if (!SSL_in_init(s)) { |
e8aa8b6c | 2203 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 2204 | struct ssl_async_args args; |
ec447924 | 2205 | |
64f9f406 MC |
2206 | args.s = s; |
2207 | args.type = OTHERFUNC; | |
2208 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 2209 | |
64f9f406 MC |
2210 | return ssl_start_async_job(s, &args, ssl_io_intern); |
2211 | } else { | |
2212 | return s->method->ssl_shutdown(s); | |
2213 | } | |
ec447924 | 2214 | } else { |
64f9f406 MC |
2215 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
2216 | return -1; | |
ec447924 | 2217 | } |
0f113f3e | 2218 | } |
d02b48c6 | 2219 | |
4fbfe86a | 2220 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 2221 | { |
f14afcaa | 2222 | /* |
a9998e2f | 2223 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
2224 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
2225 | * of SSL_renegotiate(). | |
2226 | */ | |
44c04a2e MC |
2227 | if (!SSL_IS_TLS13(s)) { |
2228 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
2229 | return 0; | |
2230 | } | |
2231 | ||
2232 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
2233 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
2234 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
2235 | return 0; | |
2236 | } | |
2237 | ||
2238 | if (!SSL_is_init_finished(s)) { | |
2239 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
2240 | return 0; | |
2241 | } | |
2242 | ||
2243 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 2244 | s->key_update = updatetype; |
44c04a2e MC |
2245 | return 1; |
2246 | } | |
2247 | ||
3499327b | 2248 | int SSL_get_key_update_type(const SSL *s) |
53d1d07d MC |
2249 | { |
2250 | return s->key_update; | |
2251 | } | |
2252 | ||
4f43d0e7 | 2253 | int SSL_renegotiate(SSL *s) |
0f113f3e | 2254 | { |
44c04a2e MC |
2255 | if (SSL_IS_TLS13(s)) { |
2256 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2257 | return 0; |
44c04a2e | 2258 | } |
cda6b998 | 2259 | |
db0f35dd TS |
2260 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2261 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION); | |
2262 | return 0; | |
2263 | } | |
44959ee4 | 2264 | |
db0f35dd | 2265 | s->renegotiate = 1; |
0f113f3e | 2266 | s->new_session = 1; |
44959ee4 | 2267 | |
26a7d938 | 2268 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2269 | } |
d02b48c6 | 2270 | |
44959ee4 | 2271 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 2272 | { |
db0f35dd TS |
2273 | if (SSL_IS_TLS13(s)) { |
2274 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2275 | return 0; |
db0f35dd | 2276 | } |
cda6b998 | 2277 | |
db0f35dd TS |
2278 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2279 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION); | |
2280 | return 0; | |
2281 | } | |
c519e89f | 2282 | |
db0f35dd | 2283 | s->renegotiate = 1; |
0f113f3e | 2284 | s->new_session = 0; |
c519e89f | 2285 | |
26a7d938 | 2286 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2287 | } |
44959ee4 | 2288 | |
3499327b | 2289 | int SSL_renegotiate_pending(const SSL *s) |
0f113f3e MC |
2290 | { |
2291 | /* | |
2292 | * becomes true when negotiation is requested; false again once a | |
2293 | * handshake has finished | |
2294 | */ | |
2295 | return (s->renegotiate != 0); | |
2296 | } | |
2297 | ||
2298 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
2299 | { | |
2300 | long l; | |
2301 | ||
2302 | switch (cmd) { | |
2303 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2304 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 2305 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
2306 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
2307 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
26a7d938 | 2308 | return l; |
0f113f3e MC |
2309 | |
2310 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2311 | s->msg_callback_arg = parg; | |
2312 | return 1; | |
2313 | ||
0f113f3e MC |
2314 | case SSL_CTRL_MODE: |
2315 | return (s->mode |= larg); | |
2316 | case SSL_CTRL_CLEAR_MODE: | |
2317 | return (s->mode &= ~larg); | |
2318 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2319 | return (long)s->max_cert_list; |
0f113f3e | 2320 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2321 | if (larg < 0) |
2322 | return 0; | |
2323 | l = (long)s->max_cert_list; | |
2324 | s->max_cert_list = (size_t)larg; | |
2325 | return l; | |
0f113f3e MC |
2326 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
2327 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2328 | return 0; | |
50ec7505 BP |
2329 | #ifndef OPENSSL_NO_KTLS |
2330 | if (s->wbio != NULL && BIO_get_ktls_send(s->wbio)) | |
2331 | return 0; | |
2332 | #endif /* OPENSSL_NO_KTLS */ | |
0f113f3e | 2333 | s->max_send_fragment = larg; |
d102d9df MC |
2334 | if (s->max_send_fragment < s->split_send_fragment) |
2335 | s->split_send_fragment = s->max_send_fragment; | |
2336 | return 1; | |
2337 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 2338 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
2339 | return 0; |
2340 | s->split_send_fragment = larg; | |
0f113f3e | 2341 | return 1; |
d102d9df MC |
2342 | case SSL_CTRL_SET_MAX_PIPELINES: |
2343 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2344 | return 0; | |
2345 | s->max_pipelines = larg; | |
94777c9c MC |
2346 | if (larg > 1) |
2347 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2348 | return 1; |
0f113f3e | 2349 | case SSL_CTRL_GET_RI_SUPPORT: |
555cbb32 | 2350 | return s->s3.send_connection_binding; |
0f113f3e MC |
2351 | case SSL_CTRL_CERT_FLAGS: |
2352 | return (s->cert->cert_flags |= larg); | |
2353 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2354 | return (s->cert->cert_flags &= ~larg); | |
2355 | ||
2356 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2357 | if (parg) { | |
555cbb32 | 2358 | if (s->s3.tmp.ciphers_raw == NULL) |
0f113f3e | 2359 | return 0; |
555cbb32 TS |
2360 | *(unsigned char **)parg = s->s3.tmp.ciphers_raw; |
2361 | return (int)s->s3.tmp.ciphers_rawlen; | |
e9fa092e EK |
2362 | } else { |
2363 | return TLS_CIPHER_LEN; | |
2364 | } | |
c5364614 | 2365 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2366 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2367 | return -1; |
dccd20d1 | 2368 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2369 | return 1; |
2370 | else | |
2371 | return 0; | |
7946ab33 | 2372 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2373 | return ssl_check_allowed_versions(larg, s->max_proto_version) |
2374 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2375 | &s->min_proto_version); | |
3edabd3c CH |
2376 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2377 | return s->min_proto_version; | |
7946ab33 | 2378 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2379 | return ssl_check_allowed_versions(s->min_proto_version, larg) |
2380 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2381 | &s->max_proto_version); | |
3edabd3c CH |
2382 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2383 | return s->max_proto_version; | |
0f113f3e | 2384 | default: |
26a7d938 | 2385 | return s->method->ssl_ctrl(s, cmd, larg, parg); |
0f113f3e MC |
2386 | } |
2387 | } | |
2388 | ||
2389 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2390 | { | |
2391 | switch (cmd) { | |
2392 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2393 | s->msg_callback = (void (*) | |
2394 | (int write_p, int version, int content_type, | |
2395 | const void *buf, size_t len, SSL *ssl, | |
2396 | void *arg))(fp); | |
2397 | return 1; | |
2398 | ||
2399 | default: | |
26a7d938 | 2400 | return s->method->ssl_callback_ctrl(s, cmd, fp); |
0f113f3e MC |
2401 | } |
2402 | } | |
d3442bc7 | 2403 | |
3c1d6bbc | 2404 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2405 | { |
2406 | return ctx->sessions; | |
2407 | } | |
2408 | ||
2409 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2410 | { | |
2411 | long l; | |
2412 | /* For some cases with ctx == NULL perform syntax checks */ | |
2413 | if (ctx == NULL) { | |
2414 | switch (cmd) { | |
14536c8c | 2415 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2416 | case SSL_CTRL_SET_GROUPS_LIST: |
2417 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2418 | #endif |
2419 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2420 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2421 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2422 | default: | |
2423 | return 0; | |
2424 | } | |
2425 | } | |
2426 | ||
2427 | switch (cmd) { | |
2428 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2429 | return ctx->read_ahead; |
0f113f3e MC |
2430 | case SSL_CTRL_SET_READ_AHEAD: |
2431 | l = ctx->read_ahead; | |
2432 | ctx->read_ahead = larg; | |
26a7d938 | 2433 | return l; |
0f113f3e MC |
2434 | |
2435 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2436 | ctx->msg_callback_arg = parg; | |
2437 | return 1; | |
2438 | ||
2439 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2440 | return (long)ctx->max_cert_list; |
0f113f3e | 2441 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2442 | if (larg < 0) |
2443 | return 0; | |
2444 | l = (long)ctx->max_cert_list; | |
2445 | ctx->max_cert_list = (size_t)larg; | |
2446 | return l; | |
0f113f3e MC |
2447 | |
2448 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2449 | if (larg < 0) |
2450 | return 0; | |
2451 | l = (long)ctx->session_cache_size; | |
2452 | ctx->session_cache_size = (size_t)larg; | |
2453 | return l; | |
0f113f3e | 2454 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
26a7d938 | 2455 | return (long)ctx->session_cache_size; |
0f113f3e MC |
2456 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2457 | l = ctx->session_cache_mode; | |
2458 | ctx->session_cache_mode = larg; | |
26a7d938 | 2459 | return l; |
0f113f3e | 2460 | case SSL_CTRL_GET_SESS_CACHE_MODE: |
26a7d938 | 2461 | return ctx->session_cache_mode; |
0f113f3e MC |
2462 | |
2463 | case SSL_CTRL_SESS_NUMBER: | |
26a7d938 | 2464 | return lh_SSL_SESSION_num_items(ctx->sessions); |
0f113f3e | 2465 | case SSL_CTRL_SESS_CONNECT: |
9ef9088c | 2466 | return tsan_load(&ctx->stats.sess_connect); |
0f113f3e | 2467 | case SSL_CTRL_SESS_CONNECT_GOOD: |
9ef9088c | 2468 | return tsan_load(&ctx->stats.sess_connect_good); |
0f113f3e | 2469 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: |
9ef9088c | 2470 | return tsan_load(&ctx->stats.sess_connect_renegotiate); |
0f113f3e | 2471 | case SSL_CTRL_SESS_ACCEPT: |
9ef9088c | 2472 | return tsan_load(&ctx->stats.sess_accept); |
0f113f3e | 2473 | case SSL_CTRL_SESS_ACCEPT_GOOD: |
9ef9088c | 2474 | return tsan_load(&ctx->stats.sess_accept_good); |
0f113f3e | 2475 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: |
9ef9088c | 2476 | return tsan_load(&ctx->stats.sess_accept_renegotiate); |
0f113f3e | 2477 | case SSL_CTRL_SESS_HIT: |
9ef9088c | 2478 | return tsan_load(&ctx->stats.sess_hit); |
0f113f3e | 2479 | case SSL_CTRL_SESS_CB_HIT: |
9ef9088c | 2480 | return tsan_load(&ctx->stats.sess_cb_hit); |
0f113f3e | 2481 | case SSL_CTRL_SESS_MISSES: |
9ef9088c | 2482 | return tsan_load(&ctx->stats.sess_miss); |
0f113f3e | 2483 | case SSL_CTRL_SESS_TIMEOUTS: |
9ef9088c | 2484 | return tsan_load(&ctx->stats.sess_timeout); |
0f113f3e | 2485 | case SSL_CTRL_SESS_CACHE_FULL: |
9ef9088c | 2486 | return tsan_load(&ctx->stats.sess_cache_full); |
0f113f3e MC |
2487 | case SSL_CTRL_MODE: |
2488 | return (ctx->mode |= larg); | |
2489 | case SSL_CTRL_CLEAR_MODE: | |
2490 | return (ctx->mode &= ~larg); | |
2491 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2492 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2493 | return 0; | |
2494 | ctx->max_send_fragment = larg; | |
d102d9df | 2495 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2496 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2497 | return 1; |
d102d9df | 2498 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2499 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2500 | return 0; |
2501 | ctx->split_send_fragment = larg; | |
2502 | return 1; | |
2503 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2504 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2505 | return 0; | |
2506 | ctx->max_pipelines = larg; | |
07077415 | 2507 | return 1; |
0f113f3e MC |
2508 | case SSL_CTRL_CERT_FLAGS: |
2509 | return (ctx->cert->cert_flags |= larg); | |
2510 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2511 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2512 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2513 | return ssl_check_allowed_versions(larg, ctx->max_proto_version) |
2514 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2515 | &ctx->min_proto_version); | |
3edabd3c CH |
2516 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2517 | return ctx->min_proto_version; | |
7946ab33 | 2518 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2519 | return ssl_check_allowed_versions(ctx->min_proto_version, larg) |
2520 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2521 | &ctx->max_proto_version); | |
3edabd3c CH |
2522 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2523 | return ctx->max_proto_version; | |
0f113f3e | 2524 | default: |
26a7d938 | 2525 | return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg); |
0f113f3e MC |
2526 | } |
2527 | } | |
2528 | ||
2529 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2530 | { | |
2531 | switch (cmd) { | |
2532 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2533 | ctx->msg_callback = (void (*) | |
2534 | (int write_p, int version, int content_type, | |
2535 | const void *buf, size_t len, SSL *ssl, | |
2536 | void *arg))(fp); | |
2537 | return 1; | |
2538 | ||
2539 | default: | |
26a7d938 | 2540 | return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp); |
0f113f3e MC |
2541 | } |
2542 | } | |
d3442bc7 | 2543 | |
ccd86b68 | 2544 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2545 | { |
90d9e49a DSH |
2546 | if (a->id > b->id) |
2547 | return 1; | |
2548 | if (a->id < b->id) | |
2549 | return -1; | |
2550 | return 0; | |
0f113f3e MC |
2551 | } |
2552 | ||
2553 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2554 | const SSL_CIPHER *const *bp) | |
2555 | { | |
90d9e49a DSH |
2556 | if ((*ap)->id > (*bp)->id) |
2557 | return 1; | |
2558 | if ((*ap)->id < (*bp)->id) | |
2559 | return -1; | |
2560 | return 0; | |
0f113f3e | 2561 | } |
d02b48c6 | 2562 | |
4f43d0e7 | 2563 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2564 | * preference */ |
0821bcd4 | 2565 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2566 | { |
2567 | if (s != NULL) { | |
2568 | if (s->cipher_list != NULL) { | |
26a7d938 | 2569 | return s->cipher_list; |
0f113f3e | 2570 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { |
26a7d938 | 2571 | return s->ctx->cipher_list; |
0f113f3e MC |
2572 | } |
2573 | } | |
26a7d938 | 2574 | return NULL; |
0f113f3e MC |
2575 | } |
2576 | ||
831eef2c NM |
2577 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2578 | { | |
eee2a6a7 | 2579 | if ((s == NULL) || !s->server) |
831eef2c | 2580 | return NULL; |
eee2a6a7 | 2581 | return s->peer_ciphers; |
831eef2c NM |
2582 | } |
2583 | ||
8b8e5bed | 2584 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2585 | { |
2586 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2587 | int i; | |
1d0c08b4 | 2588 | |
0f113f3e MC |
2589 | ciphers = SSL_get_ciphers(s); |
2590 | if (!ciphers) | |
2591 | return NULL; | |
1d0c08b4 MC |
2592 | if (!ssl_set_client_disabled(s)) |
2593 | return NULL; | |
0f113f3e MC |
2594 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { |
2595 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
8af91fd9 | 2596 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) { |
0f113f3e MC |
2597 | if (!sk) |
2598 | sk = sk_SSL_CIPHER_new_null(); | |
2599 | if (!sk) | |
2600 | return NULL; | |
2601 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2602 | sk_SSL_CIPHER_free(sk); | |
2603 | return NULL; | |
2604 | } | |
2605 | } | |
2606 | } | |
2607 | return sk; | |
2608 | } | |
8b8e5bed | 2609 | |
4f43d0e7 | 2610 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2611 | * algorithm id */ |
f73e07cf | 2612 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2613 | { |
2614 | if (s != NULL) { | |
2615 | if (s->cipher_list_by_id != NULL) { | |
26a7d938 | 2616 | return s->cipher_list_by_id; |
0f113f3e | 2617 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { |
26a7d938 | 2618 | return s->ctx->cipher_list_by_id; |
0f113f3e MC |
2619 | } |
2620 | } | |
26a7d938 | 2621 | return NULL; |
0f113f3e | 2622 | } |
d02b48c6 | 2623 | |
4f43d0e7 | 2624 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2625 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2626 | { | |
4a640fb6 | 2627 | const SSL_CIPHER *c; |
0f113f3e MC |
2628 | STACK_OF(SSL_CIPHER) *sk; |
2629 | ||
2630 | if (s == NULL) | |
26a7d938 | 2631 | return NULL; |
0f113f3e MC |
2632 | sk = SSL_get_ciphers(s); |
2633 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
26a7d938 | 2634 | return NULL; |
0f113f3e MC |
2635 | c = sk_SSL_CIPHER_value(sk, n); |
2636 | if (c == NULL) | |
26a7d938 K |
2637 | return NULL; |
2638 | return c->name; | |
0f113f3e | 2639 | } |
d02b48c6 | 2640 | |
9d5ac953 KY |
2641 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2642 | * preference */ | |
2643 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2644 | { | |
2645 | if (ctx != NULL) | |
2646 | return ctx->cipher_list; | |
2647 | return NULL; | |
2648 | } | |
2649 | ||
3c83c5ba SR |
2650 | /* |
2651 | * Distinguish between ciphers controlled by set_ciphersuite() and | |
2652 | * set_cipher_list() when counting. | |
2653 | */ | |
2654 | static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk) | |
2655 | { | |
2656 | int i, num = 0; | |
2657 | const SSL_CIPHER *c; | |
2658 | ||
2659 | if (sk == NULL) | |
2660 | return 0; | |
2661 | for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) { | |
2662 | c = sk_SSL_CIPHER_value(sk, i); | |
2663 | if (c->min_tls >= TLS1_3_VERSION) | |
2664 | continue; | |
2665 | num++; | |
2666 | } | |
2667 | return num; | |
2668 | } | |
2669 | ||
25f923dd | 2670 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2671 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2672 | { |
2673 | STACK_OF(SSL_CIPHER) *sk; | |
2674 | ||
f865b081 MC |
2675 | sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites, |
2676 | &ctx->cipher_list, &ctx->cipher_list_by_id, str, | |
2677 | ctx->cert); | |
0f113f3e MC |
2678 | /* |
2679 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2680 | * find a cipher matching the given rule string (for example if the rule | |
2681 | * string specifies a cipher which has been disabled). This is not an | |
2682 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2683 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2684 | */ | |
2685 | if (sk == NULL) | |
2686 | return 0; | |
3c83c5ba | 2687 | else if (cipher_list_tls12_num(sk) == 0) { |
0f113f3e MC |
2688 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); |
2689 | return 0; | |
2690 | } | |
2691 | return 1; | |
2692 | } | |
d02b48c6 | 2693 | |
4f43d0e7 | 2694 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2695 | int SSL_set_cipher_list(SSL *s, const char *str) |
2696 | { | |
2697 | STACK_OF(SSL_CIPHER) *sk; | |
2698 | ||
f865b081 MC |
2699 | sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites, |
2700 | &s->cipher_list, &s->cipher_list_by_id, str, | |
2701 | s->cert); | |
0f113f3e MC |
2702 | /* see comment in SSL_CTX_set_cipher_list */ |
2703 | if (sk == NULL) | |
2704 | return 0; | |
3c83c5ba | 2705 | else if (cipher_list_tls12_num(sk) == 0) { |
0f113f3e MC |
2706 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); |
2707 | return 0; | |
2708 | } | |
2709 | return 1; | |
2710 | } | |
d02b48c6 | 2711 | |
a216df59 | 2712 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size) |
0f113f3e MC |
2713 | { |
2714 | char *p; | |
a216df59 | 2715 | STACK_OF(SSL_CIPHER) *clntsk, *srvrsk; |
4a640fb6 | 2716 | const SSL_CIPHER *c; |
0f113f3e MC |
2717 | int i; |
2718 | ||
a216df59 | 2719 | if (!s->server |
eee2a6a7 | 2720 | || s->peer_ciphers == NULL |
a216df59 | 2721 | || size < 2) |
26a7d938 | 2722 | return NULL; |
0f113f3e MC |
2723 | |
2724 | p = buf; | |
eee2a6a7 | 2725 | clntsk = s->peer_ciphers; |
a216df59 MC |
2726 | srvrsk = SSL_get_ciphers(s); |
2727 | if (clntsk == NULL || srvrsk == NULL) | |
2728 | return NULL; | |
0f113f3e | 2729 | |
a216df59 | 2730 | if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0) |
0f113f3e MC |
2731 | return NULL; |
2732 | ||
a216df59 | 2733 | for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) { |
0f113f3e MC |
2734 | int n; |
2735 | ||
a216df59 MC |
2736 | c = sk_SSL_CIPHER_value(clntsk, i); |
2737 | if (sk_SSL_CIPHER_find(srvrsk, c) < 0) | |
2738 | continue; | |
2739 | ||
0f113f3e | 2740 | n = strlen(c->name); |
a216df59 | 2741 | if (n + 1 > size) { |
0f113f3e MC |
2742 | if (p != buf) |
2743 | --p; | |
2744 | *p = '\0'; | |
2745 | return buf; | |
2746 | } | |
4cacc9d5 | 2747 | strcpy(p, c->name); |
0f113f3e MC |
2748 | p += n; |
2749 | *(p++) = ':'; | |
a216df59 | 2750 | size -= n + 1; |
0f113f3e MC |
2751 | } |
2752 | p[-1] = '\0'; | |
26a7d938 | 2753 | return buf; |
0f113f3e MC |
2754 | } |
2755 | ||
52b8dad8 | 2756 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2757 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2758 | */ |
2759 | ||
f1fd4544 | 2760 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2761 | { |
2762 | if (type != TLSEXT_NAMETYPE_host_name) | |
2763 | return NULL; | |
a13c20f6 | 2764 | |
1c4aa31d | 2765 | /* |
328a0547 BK |
2766 | * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an |
2767 | * SNI value to return if we are resuming/resumed. N.B. that we still | |
2768 | * call the relevant callbacks for such resumption flows, and callbacks | |
2769 | * might error out if there is not a SNI value available. | |
1c4aa31d | 2770 | */ |
328a0547 BK |
2771 | if (s->hit) |
2772 | return s->session->ext.hostname; | |
2773 | return s->ext.hostname; | |
0f113f3e | 2774 | } |
ed3883d2 | 2775 | |
f1fd4544 | 2776 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2777 | { |
2778 | if (s->session | |
aff8c126 RS |
2779 | && (!s->ext.hostname ? s->session-> |
2780 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2781 | return TLSEXT_NAMETYPE_host_name; |
2782 | return -1; | |
2783 | } | |
ee2ffc27 | 2784 | |
0f113f3e MC |
2785 | /* |
2786 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2787 | * expected that this function is called from the callback set by |
0f113f3e MC |
2788 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2789 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2790 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2791 | * string may be truncated. The current, but experimental algorithm for | |
2792 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2793 | * is indicated to the callback. In this case, the client application has to | |
2794 | * abort the connection or have a default application level protocol. 2) If | |
2795 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2796 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2797 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2798 | * protocol in the server's list that it supports and selects this protocol. | |
2799 | * This is because it's assumed that the server has better information about | |
2800 | * which protocol a client should use. 4) If the client doesn't support any | |
2801 | * of the server's advertised protocols, then this is treated the same as | |
2802 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2803 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2804 | */ |
0f113f3e MC |
2805 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2806 | const unsigned char *server, | |
2807 | unsigned int server_len, | |
a230b26e | 2808 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2809 | { |
2810 | unsigned int i, j; | |
2811 | const unsigned char *result; | |
2812 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2813 | ||
2814 | /* | |
2815 | * For each protocol in server preference order, see if we support it. | |
2816 | */ | |
2817 | for (i = 0; i < server_len;) { | |
2818 | for (j = 0; j < client_len;) { | |
2819 | if (server[i] == client[j] && | |
2820 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2821 | /* We found a match */ | |
2822 | result = &server[i]; | |
2823 | status = OPENSSL_NPN_NEGOTIATED; | |
2824 | goto found; | |
2825 | } | |
2826 | j += client[j]; | |
2827 | j++; | |
2828 | } | |
2829 | i += server[i]; | |
2830 | i++; | |
2831 | } | |
2832 | ||
2833 | /* There's no overlap between our protocols and the server's list. */ | |
2834 | result = client; | |
2835 | status = OPENSSL_NPN_NO_OVERLAP; | |
2836 | ||
2837 | found: | |
2838 | *out = (unsigned char *)result + 1; | |
2839 | *outlen = result[0]; | |
2840 | return status; | |
2841 | } | |
ee2ffc27 | 2842 | |
e481f9b9 | 2843 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2844 | /* |
2845 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2846 | * client's requested protocol for this connection and returns 0. If the | |
2847 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2848 | * the client can request any protocol it chooses. The value returned from | |
2849 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2850 | * provided by the callback. |
2851 | */ | |
0f113f3e MC |
2852 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2853 | unsigned *len) | |
2854 | { | |
aff8c126 | 2855 | *data = s->ext.npn; |
12a765a5 | 2856 | if (*data == NULL) { |
0f113f3e MC |
2857 | *len = 0; |
2858 | } else { | |
aff8c126 | 2859 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2860 | } |
2861 | } | |
2862 | ||
2863 | /* | |
aff8c126 | 2864 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2865 | * a TLS server needs a list of supported protocols for Next Protocol |
2866 | * Negotiation. The returned list must be in wire format. The list is | |
2867 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2868 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2869 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2870 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2871 | * ServerHello. | |
2872 | */ | |
aff8c126 | 2873 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2874 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2875 | void *arg) |
0f113f3e | 2876 | { |
aff8c126 RS |
2877 | ctx->ext.npn_advertised_cb = cb; |
2878 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2879 | } |
2880 | ||
2881 | /* | |
2882 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2883 | * client needs to select a protocol from the server's provided list. |out| |
2884 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2885 | * The length of the protocol name must be written into |outlen|. The |
2886 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2887 | * callback can assume that |in| is syntactically valid. The client must | |
2888 | * select a protocol. It is fatal to the connection if this callback returns | |
2889 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2890 | */ |
aff8c126 | 2891 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2892 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2893 | void *arg) |
0f113f3e | 2894 | { |
aff8c126 RS |
2895 | ctx->ext.npn_select_cb = cb; |
2896 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2897 | } |
e481f9b9 | 2898 | #endif |
a398f821 | 2899 | |
0f113f3e MC |
2900 | /* |
2901 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2902 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2903 | * length-prefixed strings). Returns 0 on success. |
2904 | */ | |
2905 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2906 | unsigned int protos_len) |
0f113f3e | 2907 | { |
aff8c126 RS |
2908 | OPENSSL_free(ctx->ext.alpn); |
2909 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2910 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2911 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2912 | return 1; |
72e9be3d | 2913 | } |
aff8c126 | 2914 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2915 | |
2916 | return 0; | |
2917 | } | |
2918 | ||
2919 | /* | |
2920 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2921 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2922 | * length-prefixed strings). Returns 0 on success. |
2923 | */ | |
2924 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2925 | unsigned int protos_len) |
0f113f3e | 2926 | { |
aff8c126 RS |
2927 | OPENSSL_free(ssl->ext.alpn); |
2928 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2929 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2930 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2931 | return 1; |
72e9be3d | 2932 | } |
aff8c126 | 2933 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2934 | |
2935 | return 0; | |
2936 | } | |
2937 | ||
2938 | /* | |
2939 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2940 | * called during ClientHello processing in order to select an ALPN protocol | |
2941 | * from the client's list of offered protocols. | |
2942 | */ | |
2943 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2944 | SSL_CTX_alpn_select_cb_func cb, |
2945 | void *arg) | |
0f113f3e | 2946 | { |
aff8c126 RS |
2947 | ctx->ext.alpn_select_cb = cb; |
2948 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2949 | } |
2950 | ||
2951 | /* | |
69687aa8 F |
2952 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2953 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2954 | * (not including the leading length-prefix byte). If the server didn't |
2955 | * respond with a negotiated protocol then |*len| will be zero. | |
2956 | */ | |
6f017a8f | 2957 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2958 | unsigned int *len) |
0f113f3e | 2959 | { |
555cbb32 | 2960 | *data = ssl->s3.alpn_selected; |
0f113f3e MC |
2961 | if (*data == NULL) |
2962 | *len = 0; | |
2963 | else | |
555cbb32 | 2964 | *len = (unsigned int)ssl->s3.alpn_selected_len; |
0f113f3e MC |
2965 | } |
2966 | ||
74b4b494 | 2967 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e | 2968 | const char *label, size_t llen, |
23cec1f4 | 2969 | const unsigned char *context, size_t contextlen, |
0f113f3e MC |
2970 | int use_context) |
2971 | { | |
c8a18468 | 2972 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2973 | return -1; |
e0af0405 | 2974 | |
0f113f3e | 2975 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
23cec1f4 MC |
2976 | llen, context, |
2977 | contextlen, use_context); | |
0f113f3e | 2978 | } |
e0af0405 | 2979 | |
b38ede80 TT |
2980 | int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen, |
2981 | const char *label, size_t llen, | |
2982 | const unsigned char *context, | |
2983 | size_t contextlen) | |
2984 | { | |
2985 | if (s->version != TLS1_3_VERSION) | |
2986 | return 0; | |
2987 | ||
2988 | return tls13_export_keying_material_early(s, out, olen, label, llen, | |
2989 | context, contextlen); | |
2990 | } | |
2991 | ||
3c1d6bbc | 2992 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2993 | { |
bd5d27c1 | 2994 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2995 | unsigned long l; |
bd5d27c1 DB |
2996 | unsigned char tmp_storage[4]; |
2997 | ||
2998 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2999 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
3000 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
3001 | session_id = tmp_storage; | |
3002 | } | |
0f113f3e MC |
3003 | |
3004 | l = (unsigned long) | |
bd5d27c1 DB |
3005 | ((unsigned long)session_id[0]) | |
3006 | ((unsigned long)session_id[1] << 8L) | | |
3007 | ((unsigned long)session_id[2] << 16L) | | |
3008 | ((unsigned long)session_id[3] << 24L); | |
26a7d938 | 3009 | return l; |
0f113f3e MC |
3010 | } |
3011 | ||
3012 | /* | |
3013 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 3014 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
3015 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
3016 | * being able to construct an SSL_SESSION that will collide with any existing | |
3017 | * session with a matching session ID. | |
3018 | */ | |
3019 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
3020 | { | |
3021 | if (a->ssl_version != b->ssl_version) | |
208fb891 | 3022 | return 1; |
0f113f3e | 3023 | if (a->session_id_length != b->session_id_length) |
208fb891 | 3024 | return 1; |
26a7d938 | 3025 | return memcmp(a->session_id, b->session_id, a->session_id_length); |
0f113f3e MC |
3026 | } |
3027 | ||
3028 | /* | |
3029 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 3030 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
3031 | * variable. The reason is that the functions aren't static, they're exposed |
3032 | * via ssl.h. | |
3033 | */ | |
97b17195 | 3034 | |
ba18627e MC |
3035 | SSL_CTX *SSL_CTX_new_with_libctx(OPENSSL_CTX *libctx, const char *propq, |
3036 | const SSL_METHOD *meth) | |
0f113f3e MC |
3037 | { |
3038 | SSL_CTX *ret = NULL; | |
3039 | ||
3040 | if (meth == NULL) { | |
ba18627e | 3041 | SSLerr(0, SSL_R_NULL_SSL_METHOD_PASSED); |
26a7d938 | 3042 | return NULL; |
0f113f3e MC |
3043 | } |
3044 | ||
0fc32b07 MC |
3045 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
3046 | return NULL; | |
7fa792d1 | 3047 | |
0f113f3e | 3048 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
ba18627e | 3049 | SSLerr(0, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); |
0f113f3e MC |
3050 | goto err; |
3051 | } | |
b51bce94 | 3052 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
3053 | if (ret == NULL) |
3054 | goto err; | |
3055 | ||
ba18627e MC |
3056 | ret->libctx = libctx; |
3057 | if (propq != NULL) { | |
3058 | ret->propq = OPENSSL_strdup(propq); | |
3059 | if (ret->propq == NULL) | |
3060 | goto err; | |
3061 | } | |
3062 | ||
0f113f3e | 3063 | ret->method = meth; |
7946ab33 KR |
3064 | ret->min_proto_version = 0; |
3065 | ret->max_proto_version = 0; | |
693cf80c | 3066 | ret->mode = SSL_MODE_AUTO_RETRY; |
0f113f3e MC |
3067 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
3068 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 3069 | /* We take the system default. */ |
0f113f3e | 3070 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 3071 | ret->references = 1; |
16203f7b AG |
3072 | ret->lock = CRYPTO_THREAD_lock_new(); |
3073 | if (ret->lock == NULL) { | |
ba18627e | 3074 | SSLerr(0, ERR_R_MALLOC_FAILURE); |
16203f7b AG |
3075 | OPENSSL_free(ret); |
3076 | return NULL; | |
3077 | } | |
0f113f3e | 3078 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 3079 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
3080 | if ((ret->cert = ssl_cert_new()) == NULL) |
3081 | goto err; | |
3082 | ||
62d0577e | 3083 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
3084 | if (ret->sessions == NULL) |
3085 | goto err; | |
3086 | ret->cert_store = X509_STORE_new(); | |
3087 | if (ret->cert_store == NULL) | |
3088 | goto err; | |
ed29e82a RP |
3089 | #ifndef OPENSSL_NO_CT |
3090 | ret->ctlog_store = CTLOG_STORE_new(); | |
3091 | if (ret->ctlog_store == NULL) | |
3092 | goto err; | |
3093 | #endif | |
f865b081 | 3094 | |
5d120511 | 3095 | if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) |
f865b081 MC |
3096 | goto err; |
3097 | ||
61986d32 | 3098 | if (!ssl_create_cipher_list(ret->method, |
f865b081 | 3099 | ret->tls13_ciphersuites, |
a230b26e | 3100 | &ret->cipher_list, &ret->cipher_list_by_id, |
5d120511 | 3101 | OSSL_default_cipher_list(), ret->cert) |
a230b26e | 3102 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { |
ba18627e | 3103 | SSLerr(0, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
0f113f3e MC |
3104 | goto err2; |
3105 | } | |
3106 | ||
3107 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 3108 | if (ret->param == NULL) |
0f113f3e MC |
3109 | goto err; |
3110 | ||
3111 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
ba18627e | 3112 | SSLerr(0, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); |
0f113f3e MC |
3113 | goto err2; |
3114 | } | |
3115 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
ba18627e | 3116 | SSLerr(0, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); |
0f113f3e MC |
3117 | goto err2; |
3118 | } | |
3119 | ||
fa7c2637 | 3120 | if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) |
0f113f3e MC |
3121 | goto err; |
3122 | ||
98732979 MC |
3123 | if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) |
3124 | goto err; | |
3125 | ||
25a807bc F |
3126 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
3127 | goto err; | |
0f113f3e | 3128 | |
4bfb96f2 TS |
3129 | if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL) |
3130 | goto err; | |
3131 | ||
0f113f3e MC |
3132 | /* No compression for DTLS */ |
3133 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
3134 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
3135 | ||
3136 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 3137 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 3138 | |
4e2e1ec9 | 3139 | /* Setup RFC5077 ticket keys */ |
8f21260b MC |
3140 | if ((RAND_bytes_ex(libctx, ret->ext.tick_key_name, |
3141 | sizeof(ret->ext.tick_key_name)) <= 0) | |
3142 | || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_hmac_key, | |
3143 | sizeof(ret->ext.secure->tick_hmac_key)) <= 0) | |
3144 | || (RAND_priv_bytes_ex(libctx, ret->ext.secure->tick_aes_key, | |
3145 | sizeof(ret->ext.secure->tick_aes_key)) <= 0)) | |
0f113f3e | 3146 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 3147 | |
8f21260b MC |
3148 | if (RAND_priv_bytes_ex(libctx, ret->ext.cookie_hmac_key, |
3149 | sizeof(ret->ext.cookie_hmac_key)) <= 0) | |
43054d3d MC |
3150 | goto err; |
3151 | ||
edc032b5 | 3152 | #ifndef OPENSSL_NO_SRP |
61986d32 | 3153 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 3154 | goto err; |
edc032b5 | 3155 | #endif |
4db9677b | 3156 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
3157 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
3158 | # define eng_strx(x) #x | |
3159 | # define eng_str(x) eng_strx(x) | |
3160 | /* Use specific client engine automatically... ignore errors */ | |
3161 | { | |
3162 | ENGINE *eng; | |
3163 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
3164 | if (!eng) { | |
3165 | ERR_clear_error(); | |
3166 | ENGINE_load_builtin_engines(); | |
3167 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
3168 | } | |
3169 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
3170 | ERR_clear_error(); | |
3171 | } | |
3172 | # endif | |
3173 | #endif | |
3174 | /* | |
3175 | * Default is to connect to non-RI servers. When RI is more widely | |
3176 | * deployed might change this. | |
3177 | */ | |
3178 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
3179 | /* |
3180 | * Disable compression by default to prevent CRIME. Applications can | |
3181 | * re-enable compression by configuring | |
3182 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
a5816a5a MC |
3183 | * or by using the SSL_CONF library. Similarly we also enable TLSv1.3 |
3184 | * middlebox compatibility by default. This may be disabled by default in | |
3185 | * a later OpenSSL version. | |
dc5744cb | 3186 | */ |
a5816a5a | 3187 | ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT; |
0f113f3e | 3188 | |
aff8c126 | 3189 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 3190 | |
bfa9a9af | 3191 | /* |
c39e4048 BK |
3192 | * We cannot usefully set a default max_early_data here (which gets |
3193 | * propagated in SSL_new(), for the following reason: setting the | |
3194 | * SSL field causes tls_construct_stoc_early_data() to tell the | |
3195 | * client that early data will be accepted when constructing a TLS 1.3 | |
3196 | * session ticket, and the client will accordingly send us early data | |
3197 | * when using that ticket (if the client has early data to send). | |
3198 | * However, in order for the early data to actually be consumed by | |
3199 | * the application, the application must also have calls to | |
3200 | * SSL_read_early_data(); otherwise we'll just skip past the early data | |
3201 | * and ignore it. So, since the application must add calls to | |
3202 | * SSL_read_early_data(), we also require them to add | |
3203 | * calls to SSL_CTX_set_max_early_data() in order to use early data, | |
3204 | * eliminating the bandwidth-wasting early data in the case described | |
3205 | * above. | |
bfa9a9af | 3206 | */ |
c39e4048 | 3207 | ret->max_early_data = 0; |
bfa9a9af | 3208 | |
4e8548e8 MC |
3209 | /* |
3210 | * Default recv_max_early_data is a fully loaded single record. Could be | |
3211 | * split across multiple records in practice. We set this differently to | |
3212 | * max_early_data so that, in the default case, we do not advertise any | |
3213 | * support for early_data, but if a client were to send us some (e.g. | |
3214 | * because of an old, stale ticket) then we will tolerate it and skip over | |
3215 | * it. | |
3216 | */ | |
3217 | ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
3218 | ||
36ff232c MC |
3219 | /* By default we send two session tickets automatically in TLSv1.3 */ |
3220 | ret->num_tickets = 2; | |
9d0a8bb7 | 3221 | |
8a5ed9dc TM |
3222 | ssl_ctx_system_config(ret); |
3223 | ||
16203f7b | 3224 | return ret; |
0f113f3e | 3225 | err: |
ba18627e | 3226 | SSLerr(0, ERR_R_MALLOC_FAILURE); |
0f113f3e | 3227 | err2: |
e0e920b1 | 3228 | SSL_CTX_free(ret); |
16203f7b | 3229 | return NULL; |
0f113f3e | 3230 | } |
d02b48c6 | 3231 | |
ba18627e MC |
3232 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
3233 | { | |
3234 | return SSL_CTX_new_with_libctx(NULL, NULL, meth); | |
3235 | } | |
3236 | ||
c5ebfcab | 3237 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 3238 | { |
16203f7b | 3239 | int i; |
c5ebfcab | 3240 | |
2f545ae4 | 3241 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
3242 | return 0; |
3243 | ||
3244 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
3245 | REF_ASSERT_ISNT(i < 2); | |
3246 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
3247 | } |
3248 | ||
4f43d0e7 | 3249 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
3250 | { |
3251 | int i; | |
d02b48c6 | 3252 | |
0f113f3e MC |
3253 | if (a == NULL) |
3254 | return; | |
d02b48c6 | 3255 | |
2f545ae4 | 3256 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 3257 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
3258 | if (i > 0) |
3259 | return; | |
f3f1cf84 | 3260 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 3261 | |
222561fe | 3262 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 3263 | dane_ctx_final(&a->dane); |
0f113f3e MC |
3264 | |
3265 | /* | |
3266 | * Free internal session cache. However: the remove_cb() may reference | |
3267 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
3268 | * after the sessions were flushed. | |
3269 | * As the ex_data handling routines might also touch the session cache, | |
3270 | * the most secure solution seems to be: empty (flush) the cache, then | |
3271 | * free ex_data, then finally free the cache. | |
3272 | * (See ticket [openssl.org #212].) | |
3273 | */ | |
3274 | if (a->sessions != NULL) | |
3275 | SSL_CTX_flush_sessions(a, 0); | |
3276 | ||
3277 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 3278 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 3279 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
3280 | #ifndef OPENSSL_NO_CT |
3281 | CTLOG_STORE_free(a->ctlog_store); | |
3282 | #endif | |
25aaa98a RS |
3283 | sk_SSL_CIPHER_free(a->cipher_list); |
3284 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
f865b081 | 3285 | sk_SSL_CIPHER_free(a->tls13_ciphersuites); |
e0e920b1 | 3286 | ssl_cert_free(a->cert); |
fa7c2637 | 3287 | sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free); |
98732979 | 3288 | sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free); |
222561fe | 3289 | sk_X509_pop_free(a->extra_certs, X509_free); |
0f113f3e | 3290 | a->comp_methods = NULL; |
e783bae2 | 3291 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 3292 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 3293 | #endif |
edc032b5 | 3294 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 3295 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 3296 | #endif |
bdfe932d | 3297 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 3298 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 3299 | #endif |
8671b898 | 3300 | |
e481f9b9 | 3301 | #ifndef OPENSSL_NO_EC |
aff8c126 | 3302 | OPENSSL_free(a->ext.ecpointformats); |
8671b898 | 3303 | #endif |
187753e0 | 3304 | OPENSSL_free(a->ext.supportedgroups); |
aff8c126 | 3305 | OPENSSL_free(a->ext.alpn); |
4bfb96f2 | 3306 | OPENSSL_secure_free(a->ext.secure); |
8671b898 | 3307 | |
16203f7b AG |
3308 | CRYPTO_THREAD_lock_free(a->lock); |
3309 | ||
ba18627e MC |
3310 | OPENSSL_free(a->propq); |
3311 | ||
0f113f3e MC |
3312 | OPENSSL_free(a); |
3313 | } | |
d02b48c6 | 3314 | |
3ae76679 | 3315 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
3316 | { |
3317 | ctx->default_passwd_callback = cb; | |
3318 | } | |
3319 | ||
3320 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
3321 | { | |
3322 | ctx->default_passwd_callback_userdata = u; | |
3323 | } | |
3324 | ||
0c452abc CH |
3325 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
3326 | { | |
3327 | return ctx->default_passwd_callback; | |
3328 | } | |
3329 | ||
3330 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
3331 | { | |
3332 | return ctx->default_passwd_callback_userdata; | |
3333 | } | |
3334 | ||
a974e64a MC |
3335 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
3336 | { | |
3337 | s->default_passwd_callback = cb; | |
3338 | } | |
3339 | ||
3340 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
3341 | { | |
3342 | s->default_passwd_callback_userdata = u; | |
3343 | } | |
3344 | ||
0c452abc CH |
3345 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
3346 | { | |
3347 | return s->default_passwd_callback; | |
3348 | } | |
3349 | ||
3350 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
3351 | { | |
3352 | return s->default_passwd_callback_userdata; | |
3353 | } | |
3354 | ||
0f113f3e MC |
3355 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
3356 | int (*cb) (X509_STORE_CTX *, void *), | |
3357 | void *arg) | |
3358 | { | |
3359 | ctx->app_verify_callback = cb; | |
3360 | ctx->app_verify_arg = arg; | |
3361 | } | |
3362 | ||
3363 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
3364 | int (*cb) (int, X509_STORE_CTX *)) | |
3365 | { | |
3366 | ctx->verify_mode = mode; | |
3367 | ctx->default_verify_callback = cb; | |
3368 | } | |
3369 | ||
3370 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
3371 | { | |
3372 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
3373 | } | |
3374 | ||
a230b26e | 3375 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
3376 | { |
3377 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
3378 | } | |
3379 | ||
3380 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
3381 | { | |
3382 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
3383 | } | |
18d71588 | 3384 | |
2cf28d61 | 3385 | void ssl_set_masks(SSL *s) |
0f113f3e | 3386 | { |
6383d316 | 3387 | CERT *c = s->cert; |
555cbb32 | 3388 | uint32_t *pvalid = s->s3.tmp.valid_flags; |
bc71f910 | 3389 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 3390 | unsigned long mask_k, mask_a; |
10bf4fc2 | 3391 | #ifndef OPENSSL_NO_EC |
361a1191 | 3392 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 3393 | #endif |
0f113f3e MC |
3394 | if (c == NULL) |
3395 | return; | |
d02b48c6 | 3396 | |
bc36ee62 | 3397 | #ifndef OPENSSL_NO_DH |
0f113f3e | 3398 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 3399 | #else |
361a1191 | 3400 | dh_tmp = 0; |
d02b48c6 RE |
3401 | #endif |
3402 | ||
d0ff28f8 | 3403 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
3404 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
3405 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 3406 | #ifndef OPENSSL_NO_EC |
6383d316 | 3407 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 3408 | #endif |
0f113f3e MC |
3409 | mask_k = 0; |
3410 | mask_a = 0; | |
0e1dba93 | 3411 | |
77359d22 RL |
3412 | OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n", |
3413 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e | 3414 | |
2a9b9654 | 3415 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 3416 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
3417 | mask_k |= SSL_kGOST; |
3418 | mask_a |= SSL_aGOST12; | |
3419 | } | |
4020c0b3 | 3420 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
3421 | mask_k |= SSL_kGOST; |
3422 | mask_a |= SSL_aGOST12; | |
3423 | } | |
4020c0b3 | 3424 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
3425 | mask_k |= SSL_kGOST; |
3426 | mask_a |= SSL_aGOST01; | |
3427 | } | |
2a9b9654 | 3428 | #endif |
0f113f3e | 3429 | |
361a1191 | 3430 | if (rsa_enc) |
0f113f3e | 3431 | mask_k |= SSL_kRSA; |
d02b48c6 | 3432 | |
0f113f3e MC |
3433 | if (dh_tmp) |
3434 | mask_k |= SSL_kDHE; | |
d02b48c6 | 3435 | |
6aaa29fb DSH |
3436 | /* |
3437 | * If we only have an RSA-PSS certificate allow RSA authentication | |
3438 | * if TLS 1.2 and peer supports it. | |
3439 | */ | |
3440 | ||
3441 | if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN) | |
3442 | && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN | |
3443 | && TLS1_get_version(s) == TLS1_2_VERSION)) | |
0f113f3e | 3444 | mask_a |= SSL_aRSA; |
d02b48c6 | 3445 | |
0f113f3e MC |
3446 | if (dsa_sign) { |
3447 | mask_a |= SSL_aDSS; | |
0f113f3e | 3448 | } |
d02b48c6 | 3449 | |
0f113f3e | 3450 | mask_a |= SSL_aNULL; |
d02b48c6 | 3451 | |
0f113f3e MC |
3452 | /* |
3453 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
3454 | * depending on the key usage extension. | |
3455 | */ | |
14536c8c | 3456 | #ifndef OPENSSL_NO_EC |
0f113f3e | 3457 | if (have_ecc_cert) { |
a8d8e06b | 3458 | uint32_t ex_kusage; |
4020c0b3 | 3459 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 3460 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 3461 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 3462 | ecdsa_ok = 0; |
c7c46256 | 3463 | if (ecdsa_ok) |
0f113f3e | 3464 | mask_a |= SSL_aECDSA; |
0f113f3e | 3465 | } |
b2021556 DSH |
3466 | /* Allow Ed25519 for TLS 1.2 if peer supports it */ |
3467 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519) | |
3468 | && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN | |
3469 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3470 | mask_a |= SSL_aECDSA; | |
0e1d6ecf MC |
3471 | |
3472 | /* Allow Ed448 for TLS 1.2 if peer supports it */ | |
3473 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448) | |
3474 | && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN | |
3475 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3476 | mask_a |= SSL_aECDSA; | |
14536c8c | 3477 | #endif |
ea262260 | 3478 | |
10bf4fc2 | 3479 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 3480 | mask_k |= SSL_kECDHE; |
ea262260 | 3481 | #endif |
ddac1974 NL |
3482 | |
3483 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3484 | mask_k |= SSL_kPSK; |
3485 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3486 | if (mask_k & SSL_kRSA) |
3487 | mask_k |= SSL_kRSAPSK; | |
3488 | if (mask_k & SSL_kDHE) | |
3489 | mask_k |= SSL_kDHEPSK; | |
3490 | if (mask_k & SSL_kECDHE) | |
3491 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3492 | #endif |
3493 | ||
555cbb32 TS |
3494 | s->s3.tmp.mask_k = mask_k; |
3495 | s->s3.tmp.mask_a = mask_a; | |
0f113f3e | 3496 | } |
d02b48c6 | 3497 | |
ef236ec3 DSH |
3498 | #ifndef OPENSSL_NO_EC |
3499 | ||
a2f9200f | 3500 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3501 | { |
555cbb32 | 3502 | if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3503 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3504 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3505 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3506 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3507 | return 0; | |
3508 | } | |
3509 | } | |
0f113f3e MC |
3510 | return 1; /* all checks are ok */ |
3511 | } | |
ea262260 | 3512 | |
ef236ec3 DSH |
3513 | #endif |
3514 | ||
a398f821 | 3515 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3516 | size_t *serverinfo_length) |
3517 | { | |
555cbb32 | 3518 | CERT_PKEY *cpk = s->s3.tmp.cert; |
0f113f3e MC |
3519 | *serverinfo_length = 0; |
3520 | ||
a497cf25 | 3521 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3522 | return 0; |
3523 | ||
a497cf25 DSH |
3524 | *serverinfo = cpk->serverinfo; |
3525 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3526 | return 1; |
3527 | } | |
0f113f3e MC |
3528 | |
3529 | void ssl_update_cache(SSL *s, int mode) | |
3530 | { | |
3531 | int i; | |
3532 | ||
3533 | /* | |
3534 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3535 | * would be rather hard to do anyway :-) | |
3536 | */ | |
3537 | if (s->session->session_id_length == 0) | |
3538 | return; | |
3539 | ||
d316cdcf BK |
3540 | /* |
3541 | * If sid_ctx_length is 0 there is no specific application context | |
3542 | * associated with this session, so when we try to resume it and | |
c4fa1f7f BK |
3543 | * SSL_VERIFY_PEER is requested to verify the client identity, we have no |
3544 | * indication that this is actually a session for the proper application | |
3545 | * context, and the *handshake* will fail, not just the resumption attempt. | |
3546 | * Do not cache (on the server) these sessions that are not resumable | |
3547 | * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set). | |
d316cdcf | 3548 | */ |
c4fa1f7f | 3549 | if (s->server && s->session->sid_ctx_length == 0 |
d316cdcf BK |
3550 | && (s->verify_mode & SSL_VERIFY_PEER) != 0) |
3551 | return; | |
3552 | ||
0f113f3e | 3553 | i = s->session_ctx->session_cache_mode; |
5d61491c | 3554 | if ((i & mode) != 0 |
ee94ec2e MC |
3555 | && (!s->hit || SSL_IS_TLS13(s))) { |
3556 | /* | |
3557 | * Add the session to the internal cache. In server side TLSv1.3 we | |
6cc0b3c2 MC |
3558 | * normally don't do this because by default it's a full stateless ticket |
3559 | * with only a dummy session id so there is no reason to cache it, | |
3560 | * unless: | |
ee94ec2e MC |
3561 | * - we are doing early_data, in which case we cache so that we can |
3562 | * detect replays | |
3563 | * - the application has set a remove_session_cb so needs to know about | |
3564 | * session timeout events | |
6cc0b3c2 | 3565 | * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket |
ee94ec2e MC |
3566 | */ |
3567 | if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0 | |
3568 | && (!SSL_IS_TLS13(s) | |
3569 | || !s->server | |
5d263fb7 MC |
3570 | || (s->max_early_data > 0 |
3571 | && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0) | |
6cc0b3c2 MC |
3572 | || s->session_ctx->remove_session_cb != NULL |
3573 | || (s->options & SSL_OP_NO_TICKET) != 0)) | |
ee94ec2e MC |
3574 | SSL_CTX_add_session(s->session_ctx, s->session); |
3575 | ||
3576 | /* | |
3577 | * Add the session to the external cache. We do this even in server side | |
3578 | * TLSv1.3 without early data because some applications just want to | |
3579 | * know about the creation of a session and aren't doing a full cache. | |
3580 | */ | |
3581 | if (s->session_ctx->new_session_cb != NULL) { | |
3582 | SSL_SESSION_up_ref(s->session); | |
3583 | if (!s->session_ctx->new_session_cb(s, s->session)) | |
3584 | SSL_SESSION_free(s->session); | |
3585 | } | |
0f113f3e MC |
3586 | } |
3587 | ||
3588 | /* auto flush every 255 connections */ | |
3589 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
9ef9088c | 3590 | TSAN_QUALIFIER int *stat; |
1fcb4e4d BK |
3591 | if (mode & SSL_SESS_CACHE_CLIENT) |
3592 | stat = &s->session_ctx->stats.sess_connect_good; | |
3593 | else | |
3594 | stat = &s->session_ctx->stats.sess_accept_good; | |
9ef9088c | 3595 | if ((tsan_load(stat) & 0xff) == 0xff) |
0f113f3e | 3596 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); |
0f113f3e MC |
3597 | } |
3598 | } | |
d02b48c6 | 3599 | |
3499327b | 3600 | const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx) |
0f113f3e MC |
3601 | { |
3602 | return ctx->method; | |
3603 | } | |
ba168244 | 3604 | |
3499327b | 3605 | const SSL_METHOD *SSL_get_ssl_method(const SSL *s) |
0f113f3e | 3606 | { |
26a7d938 | 3607 | return s->method; |
0f113f3e | 3608 | } |
d02b48c6 | 3609 | |
4ebb342f | 3610 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3611 | { |
0f113f3e MC |
3612 | int ret = 1; |
3613 | ||
3614 | if (s->method != meth) { | |
919ba009 | 3615 | const SSL_METHOD *sm = s->method; |
a230b26e | 3616 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3617 | |
919ba009 | 3618 | if (sm->version == meth->version) |
0f113f3e MC |
3619 | s->method = meth; |
3620 | else { | |
919ba009 | 3621 | sm->ssl_free(s); |
0f113f3e MC |
3622 | s->method = meth; |
3623 | ret = s->method->ssl_new(s); | |
3624 | } | |
3625 | ||
919ba009 | 3626 | if (hf == sm->ssl_connect) |
0f113f3e | 3627 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3628 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3629 | s->handshake_func = meth->ssl_accept; |
3630 | } | |
26a7d938 | 3631 | return ret; |
0f113f3e MC |
3632 | } |
3633 | ||
3634 | int SSL_get_error(const SSL *s, int i) | |
3635 | { | |
3636 | int reason; | |
3637 | unsigned long l; | |
3638 | BIO *bio; | |
3639 | ||
3640 | if (i > 0) | |
26a7d938 | 3641 | return SSL_ERROR_NONE; |
0f113f3e MC |
3642 | |
3643 | /* | |
3644 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3645 | * where we do encode the error | |
3646 | */ | |
3647 | if ((l = ERR_peek_error()) != 0) { | |
3648 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
26a7d938 | 3649 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3650 | else |
26a7d938 | 3651 | return SSL_ERROR_SSL; |
0f113f3e MC |
3652 | } |
3653 | ||
8051ab2b MC |
3654 | if (SSL_want_read(s)) { |
3655 | bio = SSL_get_rbio(s); | |
3656 | if (BIO_should_read(bio)) | |
26a7d938 | 3657 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3658 | else if (BIO_should_write(bio)) |
3659 | /* | |
3660 | * This one doesn't make too much sense ... We never try to write | |
3661 | * to the rbio, and an application program where rbio and wbio | |
3662 | * are separate couldn't even know what it should wait for. | |
3663 | * However if we ever set s->rwstate incorrectly (so that we have | |
3664 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3665 | * wbio *are* the same, this test works around that bug; so it | |
3666 | * might be safer to keep it. | |
3667 | */ | |
26a7d938 | 3668 | return SSL_ERROR_WANT_WRITE; |
8051ab2b MC |
3669 | else if (BIO_should_io_special(bio)) { |
3670 | reason = BIO_get_retry_reason(bio); | |
3671 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3672 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3673 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3674 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3675 | else |
26a7d938 | 3676 | return SSL_ERROR_SYSCALL; /* unknown */ |
0f113f3e | 3677 | } |
8051ab2b | 3678 | } |
0f113f3e | 3679 | |
8051ab2b | 3680 | if (SSL_want_write(s)) { |
69687aa8 | 3681 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3682 | bio = s->wbio; |
3683 | if (BIO_should_write(bio)) | |
26a7d938 | 3684 | return SSL_ERROR_WANT_WRITE; |
8051ab2b | 3685 | else if (BIO_should_read(bio)) |
2e7dc7cd | 3686 | /* |
8051ab2b | 3687 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3688 | */ |
26a7d938 | 3689 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3690 | else if (BIO_should_io_special(bio)) { |
3691 | reason = BIO_get_retry_reason(bio); | |
3692 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3693 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3694 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3695 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3696 | else |
26a7d938 | 3697 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3698 | } |
07bbc92c | 3699 | } |
6b1bb98f | 3700 | if (SSL_want_x509_lookup(s)) |
26a7d938 | 3701 | return SSL_ERROR_WANT_X509_LOOKUP; |
6b1bb98f | 3702 | if (SSL_want_async(s)) |
8051ab2b | 3703 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3704 | if (SSL_want_async_job(s)) |
8051ab2b | 3705 | return SSL_ERROR_WANT_ASYNC_JOB; |
a9c0d8be DB |
3706 | if (SSL_want_client_hello_cb(s)) |
3707 | return SSL_ERROR_WANT_CLIENT_HELLO_CB; | |
8051ab2b MC |
3708 | |
3709 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
555cbb32 | 3710 | (s->s3.warn_alert == SSL_AD_CLOSE_NOTIFY)) |
26a7d938 | 3711 | return SSL_ERROR_ZERO_RETURN; |
8051ab2b | 3712 | |
26a7d938 | 3713 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3714 | } |
d02b48c6 | 3715 | |
add2f5ca MC |
3716 | static int ssl_do_handshake_intern(void *vargs) |
3717 | { | |
3718 | struct ssl_async_args *args; | |
3719 | SSL *s; | |
3720 | ||
3721 | args = (struct ssl_async_args *)vargs; | |
3722 | s = args->s; | |
3723 | ||
3724 | return s->handshake_func(s); | |
3725 | } | |
3726 | ||
4f43d0e7 | 3727 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3728 | { |
3729 | int ret = 1; | |
3730 | ||
3731 | if (s->handshake_func == NULL) { | |
3732 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3733 | return -1; |
0f113f3e MC |
3734 | } |
3735 | ||
3eaa4170 | 3736 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3737 | |
c7f47786 | 3738 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3739 | |
3740 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3741 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3742 | struct ssl_async_args args; |
3743 | ||
3744 | args.s = s; | |
3745 | ||
7fecbf6f | 3746 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3747 | } else { |
3748 | ret = s->handshake_func(s); | |
3749 | } | |
0f113f3e | 3750 | } |
add2f5ca | 3751 | return ret; |
0f113f3e MC |
3752 | } |
3753 | ||
4f43d0e7 | 3754 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3755 | { |
3756 | s->server = 1; | |
3757 | s->shutdown = 0; | |
fe3a3291 | 3758 | ossl_statem_clear(s); |
0f113f3e | 3759 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3760 | clear_ciphers(s); |
0f113f3e | 3761 | } |
d02b48c6 | 3762 | |
4f43d0e7 | 3763 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3764 | { |
3765 | s->server = 0; | |
3766 | s->shutdown = 0; | |
fe3a3291 | 3767 | ossl_statem_clear(s); |
0f113f3e | 3768 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3769 | clear_ciphers(s); |
0f113f3e | 3770 | } |
d02b48c6 | 3771 | |
4f43d0e7 | 3772 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3773 | { |
3774 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3775 | return 0; |
0f113f3e | 3776 | } |
d02b48c6 | 3777 | |
41a15c4f | 3778 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3779 | { |
3780 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3781 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3782 | return 0; |
0f113f3e | 3783 | } |
41a15c4f | 3784 | |
0821bcd4 | 3785 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3786 | { |
26a7d938 | 3787 | return 0; |
0f113f3e | 3788 | } |
0821bcd4 | 3789 | |
2b8fa1d5 | 3790 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3791 | { |
3792 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3793 | return NULL; |
0f113f3e | 3794 | } |
d02b48c6 | 3795 | |
3eb2aff4 | 3796 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3797 | { |
2abacef1 MC |
3798 | switch(version) |
3799 | { | |
3800 | case TLS1_3_VERSION: | |
582a17d6 | 3801 | return "TLSv1.3"; |
2abacef1 MC |
3802 | |
3803 | case TLS1_2_VERSION: | |
7d650072 | 3804 | return "TLSv1.2"; |
2abacef1 MC |
3805 | |
3806 | case TLS1_1_VERSION: | |
7d650072 | 3807 | return "TLSv1.1"; |
2abacef1 MC |
3808 | |
3809 | case TLS1_VERSION: | |
ee3a6c64 | 3810 | return "TLSv1"; |
2abacef1 MC |
3811 | |
3812 | case SSL3_VERSION: | |
7d650072 | 3813 | return "SSLv3"; |
2abacef1 MC |
3814 | |
3815 | case DTLS1_BAD_VER: | |
7d650072 | 3816 | return "DTLSv0.9"; |
2abacef1 MC |
3817 | |
3818 | case DTLS1_VERSION: | |
7d650072 | 3819 | return "DTLSv1"; |
2abacef1 MC |
3820 | |
3821 | case DTLS1_2_VERSION: | |
7d650072 | 3822 | return "DTLSv1.2"; |
2abacef1 MC |
3823 | |
3824 | default: | |
3825 | return "unknown"; | |
3826 | } | |
0f113f3e | 3827 | } |
d02b48c6 | 3828 | |
7d650072 KR |
3829 | const char *SSL_get_version(const SSL *s) |
3830 | { | |
3eb2aff4 | 3831 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3832 | } |
3833 | ||
98732979 | 3834 | static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src) |
0f113f3e MC |
3835 | { |
3836 | STACK_OF(X509_NAME) *sk; | |
3837 | X509_NAME *xn; | |
98732979 MC |
3838 | int i; |
3839 | ||
3840 | if (src == NULL) { | |
3841 | *dst = NULL; | |
3842 | return 1; | |
3843 | } | |
3844 | ||
3845 | if ((sk = sk_X509_NAME_new_null()) == NULL) | |
3846 | return 0; | |
3847 | for (i = 0; i < sk_X509_NAME_num(src); i++) { | |
3848 | xn = X509_NAME_dup(sk_X509_NAME_value(src, i)); | |
3849 | if (xn == NULL) { | |
3850 | sk_X509_NAME_pop_free(sk, X509_NAME_free); | |
3851 | return 0; | |
3852 | } | |
3853 | if (sk_X509_NAME_insert(sk, xn, i) == 0) { | |
3854 | X509_NAME_free(xn); | |
3855 | sk_X509_NAME_pop_free(sk, X509_NAME_free); | |
3856 | return 0; | |
3857 | } | |
3858 | } | |
3859 | *dst = sk; | |
3860 | ||
3861 | return 1; | |
3862 | } | |
3863 | ||
3864 | SSL *SSL_dup(SSL *s) | |
3865 | { | |
0f113f3e MC |
3866 | SSL *ret; |
3867 | int i; | |
3868 | ||
919ba009 VD |
3869 | /* If we're not quiescent, just up_ref! */ |
3870 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3871 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3872 | return s; |
3873 | } | |
3874 | ||
3875 | /* | |
3876 | * Otherwise, copy configuration state, and session if set. | |
3877 | */ | |
0f113f3e | 3878 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
26a7d938 | 3879 | return NULL; |
0f113f3e | 3880 | |
0f113f3e | 3881 | if (s->session != NULL) { |
919ba009 VD |
3882 | /* |
3883 | * Arranges to share the same session via up_ref. This "copies" | |
3884 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3885 | */ | |
61986d32 | 3886 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3887 | goto err; |
0f113f3e MC |
3888 | } else { |
3889 | /* | |
3890 | * No session has been established yet, so we have to expect that | |
3891 | * s->cert or ret->cert will be changed later -- they should not both | |
3892 | * point to the same object, and thus we can't use | |
3893 | * SSL_copy_session_id. | |
3894 | */ | |
919ba009 VD |
3895 | if (!SSL_set_ssl_method(ret, s->method)) |
3896 | goto err; | |
0f113f3e MC |
3897 | |
3898 | if (s->cert != NULL) { | |
e0e920b1 | 3899 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3900 | ret->cert = ssl_cert_dup(s->cert); |
3901 | if (ret->cert == NULL) | |
3902 | goto err; | |
3903 | } | |
3904 | ||
348240c6 MC |
3905 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3906 | (int)s->sid_ctx_length)) | |
69f68237 | 3907 | goto err; |
0f113f3e MC |
3908 | } |
3909 | ||
9f6b22b8 VD |
3910 | if (!ssl_dane_dup(ret, s)) |
3911 | goto err; | |
919ba009 | 3912 | ret->version = s->version; |
0f113f3e MC |
3913 | ret->options = s->options; |
3914 | ret->mode = s->mode; | |
3915 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3916 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3917 | ret->msg_callback = s->msg_callback; | |
3918 | ret->msg_callback_arg = s->msg_callback_arg; | |
3919 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3920 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3921 | ret->generate_session_id = s->generate_session_id; | |
3922 | ||
3923 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3924 | ||
0f113f3e MC |
3925 | /* copy app data, a little dangerous perhaps */ |
3926 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3927 | goto err; | |
3928 | ||
3929 | /* setup rbio, and wbio */ | |
3930 | if (s->rbio != NULL) { | |
3931 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3932 | goto err; | |
3933 | } | |
3934 | if (s->wbio != NULL) { | |
3935 | if (s->wbio != s->rbio) { | |
3936 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3937 | goto err; | |
65e2d672 MC |
3938 | } else { |
3939 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3940 | ret->wbio = ret->rbio; |
65e2d672 | 3941 | } |
0f113f3e | 3942 | } |
919ba009 | 3943 | |
0f113f3e | 3944 | ret->server = s->server; |
919ba009 VD |
3945 | if (s->handshake_func) { |
3946 | if (s->server) | |
3947 | SSL_set_accept_state(ret); | |
3948 | else | |
3949 | SSL_set_connect_state(ret); | |
3950 | } | |
0f113f3e | 3951 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3952 | ret->hit = s->hit; |
3953 | ||
a974e64a MC |
3954 | ret->default_passwd_callback = s->default_passwd_callback; |
3955 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3956 | ||
0f113f3e MC |
3957 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3958 | ||
3959 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3960 | if (s->cipher_list != NULL) { | |
3961 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3962 | goto err; | |
3963 | } | |
3964 | if (s->cipher_list_by_id != NULL) | |
3965 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3966 | == NULL) | |
3967 | goto err; | |
3968 | ||
3969 | /* Dup the client_CA list */ | |
98732979 MC |
3970 | if (!dup_ca_names(&ret->ca_names, s->ca_names) |
3971 | || !dup_ca_names(&ret->client_ca_names, s->client_ca_names)) | |
3972 | goto err; | |
3973 | ||
66696478 | 3974 | return ret; |
0f113f3e | 3975 | |
0f113f3e | 3976 | err: |
66696478 RS |
3977 | SSL_free(ret); |
3978 | return NULL; | |
0f113f3e | 3979 | } |
d02b48c6 | 3980 | |
4f43d0e7 | 3981 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3982 | { |
3983 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3984 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3985 | s->enc_read_ctx = NULL; |
3986 | } | |
3987 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3988 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3989 | s->enc_write_ctx = NULL; |
3990 | } | |
09b6c2ef | 3991 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3992 | COMP_CTX_free(s->expand); |
3993 | s->expand = NULL; | |
3994 | COMP_CTX_free(s->compress); | |
3995 | s->compress = NULL; | |
0f113f3e MC |
3996 | #endif |
3997 | } | |
d02b48c6 | 3998 | |
0821bcd4 | 3999 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
4000 | { |
4001 | if (s->cert != NULL) | |
26a7d938 | 4002 | return s->cert->key->x509; |
0f113f3e | 4003 | else |
26a7d938 | 4004 | return NULL; |
0f113f3e | 4005 | } |
d02b48c6 | 4006 | |
a25f9adc | 4007 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
4008 | { |
4009 | if (s->cert != NULL) | |
26a7d938 | 4010 | return s->cert->key->privatekey; |
0f113f3e | 4011 | else |
26a7d938 | 4012 | return NULL; |
0f113f3e | 4013 | } |
d02b48c6 | 4014 | |
a25f9adc | 4015 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
4016 | { |
4017 | if (ctx->cert != NULL) | |
4018 | return ctx->cert->key->x509; | |
4019 | else | |
4020 | return NULL; | |
4021 | } | |
a25f9adc DSH |
4022 | |
4023 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
4024 | { |
4025 | if (ctx->cert != NULL) | |
4026 | return ctx->cert->key->privatekey; | |
4027 | else | |
4028 | return NULL; | |
4029 | } | |
a25f9adc | 4030 | |
babb3798 | 4031 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
4032 | { |
4033 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
26a7d938 K |
4034 | return s->session->cipher; |
4035 | return NULL; | |
0f113f3e MC |
4036 | } |
4037 | ||
0aed6e44 BK |
4038 | const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s) |
4039 | { | |
555cbb32 | 4040 | return s->s3.tmp.new_cipher; |
0aed6e44 BK |
4041 | } |
4042 | ||
3499327b | 4043 | const COMP_METHOD *SSL_get_current_compression(const SSL *s) |
0f113f3e | 4044 | { |
9a555706 RS |
4045 | #ifndef OPENSSL_NO_COMP |
4046 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
4047 | #else | |
4048 | return NULL; | |
4049 | #endif | |
0f113f3e | 4050 | } |
377dcdba | 4051 | |
3499327b | 4052 | const COMP_METHOD *SSL_get_current_expansion(const SSL *s) |
0f113f3e | 4053 | { |
9a555706 RS |
4054 | #ifndef OPENSSL_NO_COMP |
4055 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
4056 | #else | |
4057 | return NULL; | |
0f113f3e | 4058 | #endif |
9a555706 | 4059 | } |
0f113f3e | 4060 | |
46417569 | 4061 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
4062 | { |
4063 | BIO *bbio; | |
4064 | ||
2e7dc7cd MC |
4065 | if (s->bbio != NULL) { |
4066 | /* Already buffered. */ | |
4067 | return 1; | |
0f113f3e | 4068 | } |
46417569 | 4069 | |
2e7dc7cd MC |
4070 | bbio = BIO_new(BIO_f_buffer()); |
4071 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
4072 | BIO_free(bbio); | |
0f113f3e | 4073 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 4074 | return 0; |
0f113f3e | 4075 | } |
2e7dc7cd MC |
4076 | s->bbio = bbio; |
4077 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
4078 | |
4079 | return 1; | |
0f113f3e | 4080 | } |
413c4f45 | 4081 | |
b77f3ed1 | 4082 | int ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 4083 | { |
62adbcee | 4084 | /* callers ensure s is never null */ |
0f113f3e | 4085 | if (s->bbio == NULL) |
b77f3ed1 | 4086 | return 1; |
0f113f3e | 4087 | |
2e7dc7cd | 4088 | s->wbio = BIO_pop(s->wbio); |
0f113f3e MC |
4089 | BIO_free(s->bbio); |
4090 | s->bbio = NULL; | |
b77f3ed1 MC |
4091 | |
4092 | return 1; | |
0f113f3e MC |
4093 | } |
4094 | ||
4095 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
4096 | { | |
4097 | ctx->quiet_shutdown = mode; | |
4098 | } | |
58964a49 | 4099 | |
0821bcd4 | 4100 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e | 4101 | { |
26a7d938 | 4102 | return ctx->quiet_shutdown; |
0f113f3e | 4103 | } |
58964a49 | 4104 | |
0f113f3e MC |
4105 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
4106 | { | |
4107 | s->quiet_shutdown = mode; | |
4108 | } | |
58964a49 | 4109 | |
0821bcd4 | 4110 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e | 4111 | { |
26a7d938 | 4112 | return s->quiet_shutdown; |
0f113f3e | 4113 | } |
58964a49 | 4114 | |
0f113f3e MC |
4115 | void SSL_set_shutdown(SSL *s, int mode) |
4116 | { | |
4117 | s->shutdown = mode; | |
4118 | } | |
58964a49 | 4119 | |
0821bcd4 | 4120 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 4121 | { |
6546e9b2 | 4122 | return s->shutdown; |
0f113f3e | 4123 | } |
58964a49 | 4124 | |
0821bcd4 | 4125 | int SSL_version(const SSL *s) |
0f113f3e | 4126 | { |
6546e9b2 AG |
4127 | return s->version; |
4128 | } | |
4129 | ||
4130 | int SSL_client_version(const SSL *s) | |
4131 | { | |
4132 | return s->client_version; | |
0f113f3e | 4133 | } |
58964a49 | 4134 | |
0821bcd4 | 4135 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 4136 | { |
6546e9b2 | 4137 | return ssl->ctx; |
0f113f3e MC |
4138 | } |
4139 | ||
4140 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
4141 | { | |
24a0d393 | 4142 | CERT *new_cert; |
0f113f3e MC |
4143 | if (ssl->ctx == ctx) |
4144 | return ssl->ctx; | |
0f113f3e | 4145 | if (ctx == NULL) |
222da979 | 4146 | ctx = ssl->session_ctx; |
24a0d393 KR |
4147 | new_cert = ssl_cert_dup(ctx->cert); |
4148 | if (new_cert == NULL) { | |
4149 | return NULL; | |
0f113f3e | 4150 | } |
21181889 MC |
4151 | |
4152 | if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) { | |
4153 | ssl_cert_free(new_cert); | |
4154 | return NULL; | |
4155 | } | |
4156 | ||
24a0d393 KR |
4157 | ssl_cert_free(ssl->cert); |
4158 | ssl->cert = new_cert; | |
0f113f3e MC |
4159 | |
4160 | /* | |
4161 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
4162 | * so setter APIs must prevent invalid lengths from entering the system. | |
4163 | */ | |
380a522f MC |
4164 | if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx))) |
4165 | return NULL; | |
0f113f3e MC |
4166 | |
4167 | /* | |
4168 | * If the session ID context matches that of the parent SSL_CTX, | |
4169 | * inherit it from the new SSL_CTX as well. If however the context does | |
4170 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
4171 | * leave it unchanged. | |
4172 | */ | |
4173 | if ((ssl->ctx != NULL) && | |
4174 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
4175 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
4176 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
4177 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
4178 | } | |
4179 | ||
16203f7b | 4180 | SSL_CTX_up_ref(ctx); |
a230b26e | 4181 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
4182 | ssl->ctx = ctx; |
4183 | ||
16203f7b | 4184 | return ssl->ctx; |
0f113f3e | 4185 | } |
ed3883d2 | 4186 | |
4f43d0e7 | 4187 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e | 4188 | { |
26a7d938 | 4189 | return X509_STORE_set_default_paths(ctx->cert_store); |
0f113f3e | 4190 | } |
58964a49 | 4191 | |
d84a7b20 MC |
4192 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
4193 | { | |
4194 | X509_LOOKUP *lookup; | |
4195 | ||
4196 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
4197 | if (lookup == NULL) | |
4198 | return 0; | |
6dcb100f RL |
4199 | |
4200 | /* We ignore errors, in case the directory doesn't exist */ | |
4201 | ERR_set_mark(); | |
4202 | ||
d84a7b20 MC |
4203 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); |
4204 | ||
6dcb100f | 4205 | ERR_pop_to_mark(); |
d84a7b20 MC |
4206 | |
4207 | return 1; | |
4208 | } | |
4209 | ||
4210 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
4211 | { | |
4212 | X509_LOOKUP *lookup; | |
4213 | ||
4214 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
4215 | if (lookup == NULL) | |
4216 | return 0; | |
4217 | ||
6dcb100f RL |
4218 | /* We ignore errors, in case the directory doesn't exist */ |
4219 | ERR_set_mark(); | |
4220 | ||
d84a7b20 MC |
4221 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); |
4222 | ||
6dcb100f RL |
4223 | ERR_pop_to_mark(); |
4224 | ||
4225 | return 1; | |
4226 | } | |
4227 | ||
4228 | int SSL_CTX_set_default_verify_store(SSL_CTX *ctx) | |
4229 | { | |
4230 | X509_LOOKUP *lookup; | |
4231 | ||
4232 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_store()); | |
4233 | if (lookup == NULL) | |
4234 | return 0; | |
4235 | ||
4236 | /* We ignore errors, in case the directory doesn't exist */ | |
4237 | ERR_set_mark(); | |
4238 | ||
4239 | X509_LOOKUP_add_store(lookup, NULL); | |
4240 | ||
4241 | ERR_pop_to_mark(); | |
d84a7b20 MC |
4242 | |
4243 | return 1; | |
4244 | } | |
4245 | ||
6dcb100f RL |
4246 | int SSL_CTX_load_verify_file(SSL_CTX *ctx, const char *CAfile) |
4247 | { | |
4248 | return X509_STORE_load_file(ctx->cert_store, CAfile); | |
4249 | } | |
4250 | ||
4251 | int SSL_CTX_load_verify_dir(SSL_CTX *ctx, const char *CApath) | |
4252 | { | |
4253 | return X509_STORE_load_path(ctx->cert_store, CApath); | |
4254 | } | |
4255 | ||
4256 | int SSL_CTX_load_verify_store(SSL_CTX *ctx, const char *CAstore) | |
4257 | { | |
4258 | return X509_STORE_load_store(ctx->cert_store, CAstore); | |
4259 | } | |
4260 | ||
00db8c60 | 4261 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
303c0028 | 4262 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
4263 | const char *CApath) |
4264 | { | |
6dcb100f RL |
4265 | if (CAfile == NULL && CApath == NULL) |
4266 | return 0; | |
4267 | if (CAfile != NULL && !SSL_CTX_load_verify_file(ctx, CAfile)) | |
4268 | return 0; | |
4269 | if (CApath != NULL && !SSL_CTX_load_verify_dir(ctx, CApath)) | |
4270 | return 0; | |
4271 | return 1; | |
0f113f3e | 4272 | } |
6dcb100f | 4273 | #endif |
58964a49 | 4274 | |
45d87a1f | 4275 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
4276 | void (*cb) (const SSL *ssl, int type, int val)) |
4277 | { | |
4278 | ssl->info_callback = cb; | |
4279 | } | |
4280 | ||
4281 | /* | |
4282 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
4283 | * pointer. | |
4284 | */ | |
4285 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
4286 | int /* type */ , | |
4287 | int /* val */ ) { | |
4288 | return ssl->info_callback; | |
4289 | } | |
58964a49 | 4290 | |
0f113f3e MC |
4291 | void SSL_set_verify_result(SSL *ssl, long arg) |
4292 | { | |
4293 | ssl->verify_result = arg; | |
4294 | } | |
58964a49 | 4295 | |
0821bcd4 | 4296 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e | 4297 | { |
26a7d938 | 4298 | return ssl->verify_result; |
0f113f3e MC |
4299 | } |
4300 | ||
d9f1c639 | 4301 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 4302 | { |
6b8f5d0d | 4303 | if (outlen == 0) |
555cbb32 TS |
4304 | return sizeof(ssl->s3.client_random); |
4305 | if (outlen > sizeof(ssl->s3.client_random)) | |
4306 | outlen = sizeof(ssl->s3.client_random); | |
4307 | memcpy(out, ssl->s3.client_random, outlen); | |
d9f1c639 | 4308 | return outlen; |
858618e7 NM |
4309 | } |
4310 | ||
d9f1c639 | 4311 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 4312 | { |
6b8f5d0d | 4313 | if (outlen == 0) |
555cbb32 TS |
4314 | return sizeof(ssl->s3.server_random); |
4315 | if (outlen > sizeof(ssl->s3.server_random)) | |
4316 | outlen = sizeof(ssl->s3.server_random); | |
4317 | memcpy(out, ssl->s3.server_random, outlen); | |
d9f1c639 | 4318 | return outlen; |
858618e7 NM |
4319 | } |
4320 | ||
d9f1c639 | 4321 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 4322 | unsigned char *out, size_t outlen) |
858618e7 | 4323 | { |
d9f1c639 MC |
4324 | if (outlen == 0) |
4325 | return session->master_key_length; | |
8c1a5343 | 4326 | if (outlen > session->master_key_length) |
858618e7 NM |
4327 | outlen = session->master_key_length; |
4328 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 4329 | return outlen; |
858618e7 NM |
4330 | } |
4331 | ||
725b0f1e | 4332 | int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in, |
911d63f2 MC |
4333 | size_t len) |
4334 | { | |
4335 | if (len > sizeof(sess->master_key)) | |
4336 | return 0; | |
4337 | ||
4338 | memcpy(sess->master_key, in, len); | |
4339 | sess->master_key_length = len; | |
911d63f2 MC |
4340 | return 1; |
4341 | } | |
4342 | ||
4343 | ||
0f113f3e MC |
4344 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
4345 | { | |
26a7d938 | 4346 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
4347 | } |
4348 | ||
4349 | void *SSL_get_ex_data(const SSL *s, int idx) | |
4350 | { | |
26a7d938 | 4351 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e MC |
4352 | } |
4353 | ||
0f113f3e MC |
4354 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
4355 | { | |
26a7d938 | 4356 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
4357 | } |
4358 | ||
4359 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
4360 | { | |
26a7d938 | 4361 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e | 4362 | } |
58964a49 | 4363 | |
0821bcd4 | 4364 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e | 4365 | { |
26a7d938 | 4366 | return ctx->cert_store; |
0f113f3e | 4367 | } |
413c4f45 | 4368 | |
0f113f3e MC |
4369 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
4370 | { | |
222561fe | 4371 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
4372 | ctx->cert_store = store; |
4373 | } | |
413c4f45 | 4374 | |
b50052db TS |
4375 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
4376 | { | |
4377 | if (store != NULL) | |
4378 | X509_STORE_up_ref(store); | |
4379 | SSL_CTX_set_cert_store(ctx, store); | |
4380 | } | |
4381 | ||
0821bcd4 | 4382 | int SSL_want(const SSL *s) |
0f113f3e | 4383 | { |
26a7d938 | 4384 | return s->rwstate; |
0f113f3e | 4385 | } |
413c4f45 | 4386 | |
0f113f3e | 4387 | /** |
4f43d0e7 BL |
4388 | * \brief Set the callback for generating temporary DH keys. |
4389 | * \param ctx the SSL context. | |
4390 | * \param dh the callback | |
4391 | */ | |
4392 | ||
bc36ee62 | 4393 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
4394 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
4395 | DH *(*dh) (SSL *ssl, int is_export, | |
4396 | int keylength)) | |
4397 | { | |
4398 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
4399 | } | |
f8c3c05d | 4400 | |
0f113f3e MC |
4401 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
4402 | int keylength)) | |
4403 | { | |
4404 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
4405 | } | |
79df9d62 | 4406 | #endif |
15d21c2d | 4407 | |
ddac1974 NL |
4408 | #ifndef OPENSSL_NO_PSK |
4409 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
4410 | { |
4411 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 4412 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
4413 | return 0; |
4414 | } | |
df6da24b | 4415 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 4416 | if (identity_hint != NULL) { |
7644a9ae | 4417 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 4418 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
4419 | return 0; |
4420 | } else | |
df6da24b | 4421 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
4422 | return 1; |
4423 | } | |
ddac1974 NL |
4424 | |
4425 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
4426 | { |
4427 | if (s == NULL) | |
4428 | return 0; | |
4429 | ||
0f113f3e MC |
4430 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
4431 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
4432 | return 0; | |
4433 | } | |
df6da24b | 4434 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 4435 | if (identity_hint != NULL) { |
7644a9ae | 4436 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 4437 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
4438 | return 0; |
4439 | } else | |
df6da24b | 4440 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
4441 | return 1; |
4442 | } | |
ddac1974 NL |
4443 | |
4444 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
4445 | { |
4446 | if (s == NULL || s->session == NULL) | |
4447 | return NULL; | |
26a7d938 | 4448 | return s->session->psk_identity_hint; |
0f113f3e | 4449 | } |
ddac1974 NL |
4450 | |
4451 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
4452 | { |
4453 | if (s == NULL || s->session == NULL) | |
4454 | return NULL; | |
26a7d938 | 4455 | return s->session->psk_identity; |
0f113f3e | 4456 | } |
7806f3dd | 4457 | |
8cbfcc70 | 4458 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4459 | { |
4460 | s->psk_client_callback = cb; | |
4461 | } | |
7806f3dd | 4462 | |
8cbfcc70 | 4463 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4464 | { |
4465 | ctx->psk_client_callback = cb; | |
4466 | } | |
7806f3dd | 4467 | |
8cbfcc70 | 4468 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4469 | { |
4470 | s->psk_server_callback = cb; | |
4471 | } | |
7806f3dd | 4472 | |
8cbfcc70 | 4473 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4474 | { |
4475 | ctx->psk_server_callback = cb; | |
4476 | } | |
4477 | #endif | |
4478 | ||
f46184bd MC |
4479 | void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb) |
4480 | { | |
4481 | s->psk_find_session_cb = cb; | |
4482 | } | |
4483 | ||
4484 | void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx, | |
4485 | SSL_psk_find_session_cb_func cb) | |
4486 | { | |
4487 | ctx->psk_find_session_cb = cb; | |
4488 | } | |
4489 | ||
4490 | void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) | |
4491 | { | |
4492 | s->psk_use_session_cb = cb; | |
4493 | } | |
4494 | ||
4495 | void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx, | |
4496 | SSL_psk_use_session_cb_func cb) | |
4497 | { | |
4498 | ctx->psk_use_session_cb = cb; | |
4499 | } | |
4500 | ||
0f113f3e MC |
4501 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, |
4502 | void (*cb) (int write_p, int version, | |
4503 | int content_type, const void *buf, | |
4504 | size_t len, SSL *ssl, void *arg)) | |
4505 | { | |
4506 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4507 | } | |
4508 | ||
4509 | void SSL_set_msg_callback(SSL *ssl, | |
4510 | void (*cb) (int write_p, int version, | |
4511 | int content_type, const void *buf, | |
4512 | size_t len, SSL *ssl, void *arg)) | |
4513 | { | |
4514 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4515 | } | |
a661b653 | 4516 | |
7c2d4fee | 4517 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
4518 | int (*cb) (SSL *ssl, |
4519 | int | |
4520 | is_forward_secure)) | |
4521 | { | |
4522 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4523 | (void (*)(void))cb); | |
4524 | } | |
4525 | ||
7c2d4fee | 4526 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
4527 | int (*cb) (SSL *ssl, |
4528 | int is_forward_secure)) | |
4529 | { | |
4530 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4531 | (void (*)(void))cb); | |
4532 | } | |
4533 | ||
c649d10d TS |
4534 | void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx, |
4535 | size_t (*cb) (SSL *ssl, int type, | |
4536 | size_t len, void *arg)) | |
4537 | { | |
4538 | ctx->record_padding_cb = cb; | |
4539 | } | |
4540 | ||
4541 | void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg) | |
4542 | { | |
4543 | ctx->record_padding_arg = arg; | |
4544 | } | |
4545 | ||
3499327b | 4546 | void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx) |
c649d10d TS |
4547 | { |
4548 | return ctx->record_padding_arg; | |
4549 | } | |
4550 | ||
4551 | int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size) | |
4552 | { | |
4553 | /* block size of 0 or 1 is basically no padding */ | |
4554 | if (block_size == 1) | |
4555 | ctx->block_padding = 0; | |
4556 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4557 | ctx->block_padding = block_size; | |
4558 | else | |
4559 | return 0; | |
4560 | return 1; | |
4561 | } | |
4562 | ||
4563 | void SSL_set_record_padding_callback(SSL *ssl, | |
4564 | size_t (*cb) (SSL *ssl, int type, | |
4565 | size_t len, void *arg)) | |
4566 | { | |
4567 | ssl->record_padding_cb = cb; | |
4568 | } | |
4569 | ||
4570 | void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg) | |
4571 | { | |
4572 | ssl->record_padding_arg = arg; | |
4573 | } | |
4574 | ||
3499327b | 4575 | void *SSL_get_record_padding_callback_arg(const SSL *ssl) |
c649d10d TS |
4576 | { |
4577 | return ssl->record_padding_arg; | |
4578 | } | |
4579 | ||
4580 | int SSL_set_block_padding(SSL *ssl, size_t block_size) | |
4581 | { | |
4582 | /* block size of 0 or 1 is basically no padding */ | |
4583 | if (block_size == 1) | |
4584 | ssl->block_padding = 0; | |
4585 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4586 | ssl->block_padding = block_size; | |
4587 | else | |
4588 | return 0; | |
4589 | return 1; | |
4590 | } | |
4591 | ||
9d0a8bb7 MC |
4592 | int SSL_set_num_tickets(SSL *s, size_t num_tickets) |
4593 | { | |
4594 | s->num_tickets = num_tickets; | |
4595 | ||
4596 | return 1; | |
4597 | } | |
4598 | ||
3499327b | 4599 | size_t SSL_get_num_tickets(const SSL *s) |
9d0a8bb7 MC |
4600 | { |
4601 | return s->num_tickets; | |
4602 | } | |
4603 | ||
4604 | int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) | |
4605 | { | |
4606 | ctx->num_tickets = num_tickets; | |
4607 | ||
4608 | return 1; | |
4609 | } | |
4610 | ||
3499327b | 4611 | size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx) |
9d0a8bb7 MC |
4612 | { |
4613 | return ctx->num_tickets; | |
4614 | } | |
4615 | ||
0f113f3e MC |
4616 | /* |
4617 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 4618 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 4619 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 4620 | * Returns the newly allocated ctx; |
8671b898 | 4621 | */ |
b948e2c5 | 4622 | |
0f113f3e | 4623 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 4624 | { |
0f113f3e | 4625 | ssl_clear_hash_ctx(hash); |
bfb0641f | 4626 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 4627 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 4628 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
4629 | *hash = NULL; |
4630 | return NULL; | |
4631 | } | |
0f113f3e | 4632 | return *hash; |
b948e2c5 | 4633 | } |
0f113f3e MC |
4634 | |
4635 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
4636 | { |
4637 | ||
0d9824c1 | 4638 | EVP_MD_CTX_free(*hash); |
0f113f3e | 4639 | *hash = NULL; |
b948e2c5 | 4640 | } |
a661b653 | 4641 | |
48fbcbac | 4642 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
4643 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
4644 | size_t *hashlen) | |
48fbcbac | 4645 | { |
6e59a892 | 4646 | EVP_MD_CTX *ctx = NULL; |
555cbb32 | 4647 | EVP_MD_CTX *hdgst = s->s3.handshake_dgst; |
8c1a5343 MC |
4648 | int hashleni = EVP_MD_CTX_size(hdgst); |
4649 | int ret = 0; | |
4650 | ||
f63a17d6 MC |
4651 | if (hashleni < 0 || (size_t)hashleni > outlen) { |
4652 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH, | |
4653 | ERR_R_INTERNAL_ERROR); | |
28ba2541 | 4654 | goto err; |
f63a17d6 | 4655 | } |
8c1a5343 | 4656 | |
bfb0641f | 4657 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 4658 | if (ctx == NULL) |
6e59a892 | 4659 | goto err; |
8c1a5343 | 4660 | |
6e59a892 | 4661 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
f63a17d6 MC |
4662 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) { |
4663 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH, | |
4664 | ERR_R_INTERNAL_ERROR); | |
8c1a5343 | 4665 | goto err; |
f63a17d6 | 4666 | } |
8c1a5343 MC |
4667 | |
4668 | *hashlen = hashleni; | |
4669 | ||
4670 | ret = 1; | |
48fbcbac | 4671 | err: |
bfb0641f | 4672 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
4673 | return ret; |
4674 | } | |
4675 | ||
c04b66b1 | 4676 | int SSL_session_reused(const SSL *s) |
0f113f3e MC |
4677 | { |
4678 | return s->hit; | |
4679 | } | |
08557cf2 | 4680 | |
69443116 | 4681 | int SSL_is_server(const SSL *s) |
0f113f3e MC |
4682 | { |
4683 | return s->server; | |
4684 | } | |
87adf1fa | 4685 | |
00db8c60 | 4686 | #ifndef OPENSSL_NO_DEPRECATED_1_1_0 |
47153c72 RS |
4687 | void SSL_set_debug(SSL *s, int debug) |
4688 | { | |
4689 | /* Old function was do-nothing anyway... */ | |
4690 | (void)s; | |
4691 | (void)debug; | |
4692 | } | |
4693 | #endif | |
4694 | ||
b362ccab | 4695 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4696 | { |
4697 | s->cert->sec_level = level; | |
4698 | } | |
b362ccab DSH |
4699 | |
4700 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4701 | { |
4702 | return s->cert->sec_level; | |
4703 | } | |
b362ccab | 4704 | |
0f113f3e | 4705 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4706 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4707 | int op, int bits, int nid, | |
4708 | void *other, void *ex)) | |
0f113f3e MC |
4709 | { |
4710 | s->cert->sec_cb = cb; | |
4711 | } | |
b362ccab | 4712 | |
a230b26e EK |
4713 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4714 | const SSL_CTX *ctx, int op, | |
4715 | int bits, int nid, void *other, | |
4716 | void *ex) { | |
0f113f3e MC |
4717 | return s->cert->sec_cb; |
4718 | } | |
b362ccab DSH |
4719 | |
4720 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4721 | { |
4722 | s->cert->sec_ex = ex; | |
4723 | } | |
b362ccab DSH |
4724 | |
4725 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4726 | { |
4727 | return s->cert->sec_ex; | |
4728 | } | |
b362ccab DSH |
4729 | |
4730 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4731 | { |
4732 | ctx->cert->sec_level = level; | |
4733 | } | |
b362ccab DSH |
4734 | |
4735 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4736 | { |
4737 | return ctx->cert->sec_level; | |
4738 | } | |
b362ccab | 4739 | |
0f113f3e | 4740 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4741 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4742 | int op, int bits, int nid, | |
4743 | void *other, void *ex)) | |
0f113f3e MC |
4744 | { |
4745 | ctx->cert->sec_cb = cb; | |
4746 | } | |
b362ccab | 4747 | |
e4646a89 KR |
4748 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4749 | const SSL_CTX *ctx, | |
0f113f3e MC |
4750 | int op, int bits, |
4751 | int nid, | |
4752 | void *other, | |
4753 | void *ex) { | |
4754 | return ctx->cert->sec_cb; | |
4755 | } | |
b362ccab DSH |
4756 | |
4757 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4758 | { |
4759 | ctx->cert->sec_ex = ex; | |
4760 | } | |
b362ccab DSH |
4761 | |
4762 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4763 | { |
4764 | return ctx->cert->sec_ex; | |
4765 | } | |
b362ccab | 4766 | |
8106cb8b VD |
4767 | /* |
4768 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4769 | * can return unsigned long, instead of the generic long return value from the | |
4770 | * control interface. | |
4771 | */ | |
4772 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4773 | { | |
4774 | return ctx->options; | |
4775 | } | |
a230b26e EK |
4776 | |
4777 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4778 | { |
4779 | return s->options; | |
4780 | } | |
a230b26e | 4781 | |
8106cb8b VD |
4782 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4783 | { | |
4784 | return ctx->options |= op; | |
4785 | } | |
a230b26e | 4786 | |
8106cb8b VD |
4787 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4788 | { | |
4789 | return s->options |= op; | |
4790 | } | |
a230b26e | 4791 | |
8106cb8b VD |
4792 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4793 | { | |
4794 | return ctx->options &= ~op; | |
4795 | } | |
a230b26e | 4796 | |
8106cb8b VD |
4797 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4798 | { | |
4799 | return s->options &= ~op; | |
4800 | } | |
4801 | ||
696178ed DSH |
4802 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4803 | { | |
4804 | return s->verified_chain; | |
4805 | } | |
4806 | ||
0f113f3e | 4807 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4808 | |
4809 | #ifndef OPENSSL_NO_CT | |
4810 | ||
4811 | /* | |
4812 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4813 | * The source of each SCT will be set to |origin|. | |
4814 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4815 | * the caller. | |
4816 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4817 | */ | |
a230b26e EK |
4818 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4819 | sct_source_t origin) | |
ed29e82a RP |
4820 | { |
4821 | int scts_moved = 0; | |
4822 | SCT *sct = NULL; | |
4823 | ||
4824 | if (*dst == NULL) { | |
4825 | *dst = sk_SCT_new_null(); | |
4826 | if (*dst == NULL) { | |
4827 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4828 | goto err; | |
4829 | } | |
4830 | } | |
4831 | ||
4832 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4833 | if (SCT_set_source(sct, origin) != 1) | |
4834 | goto err; | |
4835 | ||
4836 | if (sk_SCT_push(*dst, sct) <= 0) | |
4837 | goto err; | |
4838 | scts_moved += 1; | |
4839 | } | |
4840 | ||
4841 | return scts_moved; | |
a230b26e | 4842 | err: |
ed29e82a | 4843 | if (sct != NULL) |
a230b26e | 4844 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4845 | return -1; |
ed29e82a RP |
4846 | } |
4847 | ||
4848 | /* | |
a230b26e | 4849 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4850 | * Returns the number of SCTs extracted. |
a230b26e | 4851 | */ |
ed29e82a RP |
4852 | static int ct_extract_tls_extension_scts(SSL *s) |
4853 | { | |
4854 | int scts_extracted = 0; | |
4855 | ||
aff8c126 RS |
4856 | if (s->ext.scts != NULL) { |
4857 | const unsigned char *p = s->ext.scts; | |
4858 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4859 | |
4860 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4861 | ||
4862 | SCT_LIST_free(scts); | |
4863 | } | |
4864 | ||
4865 | return scts_extracted; | |
4866 | } | |
4867 | ||
4868 | /* | |
4869 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4870 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4871 | * Returns: | |
4872 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4873 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4874 | * - A negative integer if an error occurs. | |
4875 | */ | |
4876 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4877 | { | |
a230b26e | 4878 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4879 | int scts_extracted = 0; |
4880 | const unsigned char *p; | |
4881 | OCSP_BASICRESP *br = NULL; | |
4882 | OCSP_RESPONSE *rsp = NULL; | |
4883 | STACK_OF(SCT) *scts = NULL; | |
4884 | int i; | |
4885 | ||
aff8c126 | 4886 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4887 | goto err; |
4888 | ||
aff8c126 RS |
4889 | p = s->ext.ocsp.resp; |
4890 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4891 | if (rsp == NULL) |
4892 | goto err; | |
4893 | ||
4894 | br = OCSP_response_get1_basic(rsp); | |
4895 | if (br == NULL) | |
4896 | goto err; | |
4897 | ||
4898 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4899 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4900 | ||
4901 | if (single == NULL) | |
4902 | continue; | |
4903 | ||
a230b26e EK |
4904 | scts = |
4905 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4906 | scts_extracted = | |
4907 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4908 | if (scts_extracted < 0) |
4909 | goto err; | |
4910 | } | |
a230b26e | 4911 | err: |
ed29e82a RP |
4912 | SCT_LIST_free(scts); |
4913 | OCSP_BASICRESP_free(br); | |
4914 | OCSP_RESPONSE_free(rsp); | |
4915 | return scts_extracted; | |
a230b26e | 4916 | # else |
3e41ac35 MC |
4917 | /* Behave as if no OCSP response exists */ |
4918 | return 0; | |
a230b26e | 4919 | # endif |
ed29e82a RP |
4920 | } |
4921 | ||
4922 | /* | |
4923 | * Attempts to extract SCTs from the peer certificate. | |
4924 | * Return the number of SCTs extracted, or a negative integer if an error | |
4925 | * occurs. | |
4926 | */ | |
4927 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4928 | { | |
4929 | int scts_extracted = 0; | |
3f3c7d26 | 4930 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4931 | |
4932 | if (cert != NULL) { | |
4933 | STACK_OF(SCT) *scts = | |
4934 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4935 | ||
4936 | scts_extracted = | |
4937 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4938 | ||
4939 | SCT_LIST_free(scts); | |
4940 | } | |
4941 | ||
4942 | return scts_extracted; | |
4943 | } | |
4944 | ||
4945 | /* | |
4946 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4947 | * response (if it exists) and X509v3 extensions in the certificate. | |
4948 | * Returns NULL if an error occurs. | |
4949 | */ | |
4950 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4951 | { | |
4952 | if (!s->scts_parsed) { | |
4953 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4954 | ct_extract_ocsp_response_scts(s) < 0 || | |
4955 | ct_extract_x509v3_extension_scts(s) < 0) | |
4956 | goto err; | |
4957 | ||
4958 | s->scts_parsed = 1; | |
4959 | } | |
4960 | return s->scts; | |
a230b26e | 4961 | err: |
ed29e82a RP |
4962 | return NULL; |
4963 | } | |
4964 | ||
a230b26e | 4965 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4966 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4967 | { |
43341433 VD |
4968 | return 1; |
4969 | } | |
4970 | ||
a230b26e | 4971 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4972 | const STACK_OF(SCT) *scts, void *unused_arg) |
4973 | { | |
4974 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4975 | int i; | |
ed29e82a | 4976 | |
43341433 VD |
4977 | for (i = 0; i < count; ++i) { |
4978 | SCT *sct = sk_SCT_value(scts, i); | |
4979 | int status = SCT_get_validation_status(sct); | |
4980 | ||
4981 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4982 | return 1; | |
4983 | } | |
4984 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4985 | return 0; | |
4986 | } | |
4987 | ||
4988 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4989 | void *arg) | |
4990 | { | |
ed29e82a RP |
4991 | /* |
4992 | * Since code exists that uses the custom extension handler for CT, look | |
4993 | * for this and throw an error if they have already registered to use CT. | |
4994 | */ | |
4995 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4996 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4997 | { | |
ed29e82a RP |
4998 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4999 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 5000 | return 0; |
ed29e82a RP |
5001 | } |
5002 | ||
ed29e82a | 5003 | if (callback != NULL) { |
a230b26e EK |
5004 | /* |
5005 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
5006 | */ | |
ed29e82a | 5007 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 5008 | return 0; |
ed29e82a RP |
5009 | } |
5010 | ||
43341433 VD |
5011 | s->ct_validation_callback = callback; |
5012 | s->ct_validation_callback_arg = arg; | |
5013 | ||
5014 | return 1; | |
ed29e82a RP |
5015 | } |
5016 | ||
43341433 | 5017 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 5018 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 5019 | { |
ed29e82a RP |
5020 | /* |
5021 | * Since code exists that uses the custom extension handler for CT, look for | |
5022 | * this and throw an error if they have already registered to use CT. | |
5023 | */ | |
5024 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
5025 | TLSEXT_TYPE_signed_certificate_timestamp)) |
5026 | { | |
ed29e82a RP |
5027 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
5028 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 5029 | return 0; |
ed29e82a RP |
5030 | } |
5031 | ||
5032 | ctx->ct_validation_callback = callback; | |
5033 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 5034 | return 1; |
ed29e82a RP |
5035 | } |
5036 | ||
43341433 | 5037 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 5038 | { |
43341433 | 5039 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
5040 | } |
5041 | ||
43341433 | 5042 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 5043 | { |
43341433 | 5044 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
5045 | } |
5046 | ||
4d482ee2 | 5047 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
5048 | { |
5049 | int ret = 0; | |
3f3c7d26 | 5050 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 5051 | X509 *issuer; |
b9aec69a | 5052 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
5053 | CT_POLICY_EVAL_CTX *ctx = NULL; |
5054 | const STACK_OF(SCT) *scts; | |
5055 | ||
43341433 VD |
5056 | /* |
5057 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
5058 | * skip SCT validation - just return success. Applications that continue | |
5059 | * handshakes without certificates, with unverified chains, or pinned leaf | |
5060 | * certificates are outside the scope of the WebPKI and CT. | |
5061 | * | |
5062 | * The above exclusions notwithstanding the vast majority of peers will | |
5063 | * have rather ordinary certificate chains validated by typical | |
5064 | * applications that perform certificate verification and therefore will | |
5065 | * process SCTs when enabled. | |
5066 | */ | |
5067 | if (s->ct_validation_callback == NULL || cert == NULL || | |
5068 | s->verify_result != X509_V_OK || | |
a230b26e | 5069 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
5070 | return 1; |
5071 | ||
43341433 VD |
5072 | /* |
5073 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
5074 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
5075 | */ | |
5076 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
5077 | switch (dane->mtlsa->usage) { | |
5078 | case DANETLS_USAGE_DANE_TA: | |
5079 | case DANETLS_USAGE_DANE_EE: | |
5080 | return 1; | |
5081 | } | |
ed29e82a RP |
5082 | } |
5083 | ||
ed29e82a RP |
5084 | ctx = CT_POLICY_EVAL_CTX_new(); |
5085 | if (ctx == NULL) { | |
f63a17d6 MC |
5086 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT, |
5087 | ERR_R_MALLOC_FAILURE); | |
ed29e82a RP |
5088 | goto end; |
5089 | } | |
5090 | ||
43341433 | 5091 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
5092 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
5093 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
5094 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
6a71e06d RP |
5095 | CT_POLICY_EVAL_CTX_set_time( |
5096 | ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000); | |
ed29e82a RP |
5097 | |
5098 | scts = SSL_get0_peer_scts(s); | |
5099 | ||
43341433 VD |
5100 | /* |
5101 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
5102 | * when some are invalid, and < 0 on various internal errors (out of | |
5103 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
5104 | * reason to abort the handshake, that decision is up to the callback. | |
5105 | * Therefore, we error out only in the unexpected case that the return | |
5106 | * value is negative. | |
5107 | * | |
5108 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 5109 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
5110 | * status of each of the provided SCTs. So long as it correctly separates |
5111 | * the wheat from the chaff it should return success. Failure in this case | |
5112 | * ought to correspond to an inability to carry out its duties. | |
5113 | */ | |
5114 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
f63a17d6 MC |
5115 | SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT, |
5116 | SSL_R_SCT_VERIFICATION_FAILED); | |
ed29e82a RP |
5117 | goto end; |
5118 | } | |
5119 | ||
5120 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
5121 | if (ret < 0) | |
a230b26e | 5122 | ret = 0; /* This function returns 0 on failure */ |
f63a17d6 MC |
5123 | if (!ret) |
5124 | SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT, | |
5125 | SSL_R_CALLBACK_FAILED); | |
ed29e82a | 5126 | |
a230b26e | 5127 | end: |
ed29e82a | 5128 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
5129 | /* |
5130 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
5131 | * failure return code here. Also the application may wish the complete | |
5132 | * the handshake, and then disconnect cleanly at a higher layer, after | |
5133 | * checking the verification status of the completed connection. | |
5134 | * | |
5135 | * We therefore force a certificate verification failure which will be | |
5136 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
5137 | * session. | |
5138 | * | |
5139 | * Note: the permissive callback is for information gathering only, always | |
5140 | * returns success, and does not affect verification status. Only the | |
5141 | * strict callback or a custom application-specified callback can trigger | |
5142 | * connection failure or record a verification error. | |
5143 | */ | |
5144 | if (ret <= 0) | |
5145 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
5146 | return ret; |
5147 | } | |
5148 | ||
43341433 VD |
5149 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
5150 | { | |
5151 | switch (validation_mode) { | |
5152 | default: | |
5153 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
5154 | return 0; | |
5155 | case SSL_CT_VALIDATION_PERMISSIVE: | |
5156 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
5157 | case SSL_CT_VALIDATION_STRICT: | |
5158 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
5159 | } | |
5160 | } | |
5161 | ||
5162 | int SSL_enable_ct(SSL *s, int validation_mode) | |
5163 | { | |
5164 | switch (validation_mode) { | |
5165 | default: | |
5166 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
5167 | return 0; | |
5168 | case SSL_CT_VALIDATION_PERMISSIVE: | |
5169 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
5170 | case SSL_CT_VALIDATION_STRICT: | |
5171 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
5172 | } | |
5173 | } | |
5174 | ||
ed29e82a RP |
5175 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
5176 | { | |
328f36c5 | 5177 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
5178 | } |
5179 | ||
5180 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
5181 | { | |
5182 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
5183 | } | |
5184 | ||
a230b26e | 5185 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
5186 | { |
5187 | CTLOG_STORE_free(ctx->ctlog_store); | |
5188 | ctx->ctlog_store = logs; | |
5189 | } | |
5190 | ||
5191 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
5192 | { | |
5193 | return ctx->ctlog_store; | |
5194 | } | |
5195 | ||
6b1bb98f BK |
5196 | #endif /* OPENSSL_NO_CT */ |
5197 | ||
a9c0d8be DB |
5198 | void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb, |
5199 | void *arg) | |
6b1bb98f | 5200 | { |
a9c0d8be DB |
5201 | c->client_hello_cb = cb; |
5202 | c->client_hello_cb_arg = arg; | |
6b1bb98f BK |
5203 | } |
5204 | ||
a9c0d8be | 5205 | int SSL_client_hello_isv2(SSL *s) |
6b1bb98f BK |
5206 | { |
5207 | if (s->clienthello == NULL) | |
5208 | return 0; | |
5209 | return s->clienthello->isv2; | |
5210 | } | |
5211 | ||
a9c0d8be | 5212 | unsigned int SSL_client_hello_get0_legacy_version(SSL *s) |
6b1bb98f BK |
5213 | { |
5214 | if (s->clienthello == NULL) | |
5215 | return 0; | |
5216 | return s->clienthello->legacy_version; | |
5217 | } | |
5218 | ||
a9c0d8be | 5219 | size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5220 | { |
5221 | if (s->clienthello == NULL) | |
5222 | return 0; | |
5223 | if (out != NULL) | |
5224 | *out = s->clienthello->random; | |
5225 | return SSL3_RANDOM_SIZE; | |
5226 | } | |
5227 | ||
a9c0d8be | 5228 | size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5229 | { |
5230 | if (s->clienthello == NULL) | |
5231 | return 0; | |
5232 | if (out != NULL) | |
5233 | *out = s->clienthello->session_id; | |
5234 | return s->clienthello->session_id_len; | |
5235 | } | |
5236 | ||
a9c0d8be | 5237 | size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5238 | { |
5239 | if (s->clienthello == NULL) | |
5240 | return 0; | |
5241 | if (out != NULL) | |
5242 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
5243 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
5244 | } | |
5245 | ||
a9c0d8be | 5246 | size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5247 | { |
5248 | if (s->clienthello == NULL) | |
5249 | return 0; | |
5250 | if (out != NULL) | |
5251 | *out = s->clienthello->compressions; | |
5252 | return s->clienthello->compressions_len; | |
5253 | } | |
5254 | ||
a9c0d8be | 5255 | int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen) |
193b5d76 BK |
5256 | { |
5257 | RAW_EXTENSION *ext; | |
5258 | int *present; | |
5259 | size_t num = 0, i; | |
5260 | ||
5261 | if (s->clienthello == NULL || out == NULL || outlen == NULL) | |
5262 | return 0; | |
5263 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
5264 | ext = s->clienthello->pre_proc_exts + i; | |
5265 | if (ext->present) | |
5266 | num++; | |
5267 | } | |
6fda11ae | 5268 | if (num == 0) { |
5269 | *out = NULL; | |
5270 | *outlen = 0; | |
5271 | return 1; | |
5272 | } | |
cdb10bae RS |
5273 | if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) { |
5274 | SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT, | |
5275 | ERR_R_MALLOC_FAILURE); | |
193b5d76 | 5276 | return 0; |
cdb10bae | 5277 | } |
193b5d76 BK |
5278 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { |
5279 | ext = s->clienthello->pre_proc_exts + i; | |
5280 | if (ext->present) { | |
5281 | if (ext->received_order >= num) | |
5282 | goto err; | |
5283 | present[ext->received_order] = ext->type; | |
5284 | } | |
5285 | } | |
5286 | *out = present; | |
5287 | *outlen = num; | |
5288 | return 1; | |
5289 | err: | |
5290 | OPENSSL_free(present); | |
5291 | return 0; | |
5292 | } | |
5293 | ||
a9c0d8be | 5294 | int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out, |
6b1bb98f BK |
5295 | size_t *outlen) |
5296 | { | |
5297 | size_t i; | |
5298 | RAW_EXTENSION *r; | |
5299 | ||
5300 | if (s->clienthello == NULL) | |
5301 | return 0; | |
5302 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
5303 | r = s->clienthello->pre_proc_exts + i; | |
5304 | if (r->present && r->type == type) { | |
5305 | if (out != NULL) | |
5306 | *out = PACKET_data(&r->data); | |
5307 | if (outlen != NULL) | |
5308 | *outlen = PACKET_remaining(&r->data); | |
5309 | return 1; | |
5310 | } | |
5311 | } | |
5312 | return 0; | |
5313 | } | |
2faa1b48 | 5314 | |
a58eb06d TS |
5315 | int SSL_free_buffers(SSL *ssl) |
5316 | { | |
5317 | RECORD_LAYER *rl = &ssl->rlayer; | |
5318 | ||
5319 | if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl)) | |
5320 | return 0; | |
5321 | ||
5322 | RECORD_LAYER_release(rl); | |
5323 | return 1; | |
5324 | } | |
5325 | ||
5326 | int SSL_alloc_buffers(SSL *ssl) | |
5327 | { | |
5328 | return ssl3_setup_buffers(ssl); | |
5329 | } | |
5330 | ||
2faa1b48 CB |
5331 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) |
5332 | { | |
5333 | ctx->keylog_callback = cb; | |
5334 | } | |
5335 | ||
5336 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
5337 | { | |
5338 | return ctx->keylog_callback; | |
5339 | } | |
5340 | ||
5341 | static int nss_keylog_int(const char *prefix, | |
5342 | SSL *ssl, | |
5343 | const uint8_t *parameter_1, | |
5344 | size_t parameter_1_len, | |
5345 | const uint8_t *parameter_2, | |
5346 | size_t parameter_2_len) | |
5347 | { | |
5348 | char *out = NULL; | |
5349 | char *cursor = NULL; | |
5350 | size_t out_len = 0; | |
5351 | size_t i; | |
5352 | size_t prefix_len; | |
5353 | ||
20870286 P |
5354 | if (ssl->ctx->keylog_callback == NULL) |
5355 | return 1; | |
2faa1b48 CB |
5356 | |
5357 | /* | |
5358 | * Our output buffer will contain the following strings, rendered with | |
5359 | * space characters in between, terminated by a NULL character: first the | |
5360 | * prefix, then the first parameter, then the second parameter. The | |
5361 | * meaning of each parameter depends on the specific key material being | |
5362 | * logged. Note that the first and second parameters are encoded in | |
5363 | * hexadecimal, so we need a buffer that is twice their lengths. | |
5364 | */ | |
5365 | prefix_len = strlen(prefix); | |
e931f370 | 5366 | out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3; |
2faa1b48 | 5367 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { |
f63a17d6 MC |
5368 | SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT, |
5369 | ERR_R_MALLOC_FAILURE); | |
2faa1b48 CB |
5370 | return 0; |
5371 | } | |
5372 | ||
5373 | strcpy(cursor, prefix); | |
5374 | cursor += prefix_len; | |
5375 | *cursor++ = ' '; | |
5376 | ||
5377 | for (i = 0; i < parameter_1_len; i++) { | |
5378 | sprintf(cursor, "%02x", parameter_1[i]); | |
5379 | cursor += 2; | |
5380 | } | |
5381 | *cursor++ = ' '; | |
5382 | ||
5383 | for (i = 0; i < parameter_2_len; i++) { | |
5384 | sprintf(cursor, "%02x", parameter_2[i]); | |
5385 | cursor += 2; | |
5386 | } | |
5387 | *cursor = '\0'; | |
5388 | ||
5389 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
e931f370 | 5390 | OPENSSL_clear_free(out, out_len); |
2faa1b48 CB |
5391 | return 1; |
5392 | ||
5393 | } | |
5394 | ||
5395 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
5396 | const uint8_t *encrypted_premaster, | |
5397 | size_t encrypted_premaster_len, | |
5398 | const uint8_t *premaster, | |
5399 | size_t premaster_len) | |
5400 | { | |
5401 | if (encrypted_premaster_len < 8) { | |
f63a17d6 MC |
5402 | SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, |
5403 | SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
2faa1b48 CB |
5404 | return 0; |
5405 | } | |
5406 | ||
f0deb4d3 | 5407 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
5408 | return nss_keylog_int("RSA", |
5409 | ssl, | |
5410 | encrypted_premaster, | |
f0deb4d3 | 5411 | 8, |
2faa1b48 CB |
5412 | premaster, |
5413 | premaster_len); | |
5414 | } | |
5415 | ||
2c7bd692 CB |
5416 | int ssl_log_secret(SSL *ssl, |
5417 | const char *label, | |
5418 | const uint8_t *secret, | |
5419 | size_t secret_len) | |
2faa1b48 | 5420 | { |
2c7bd692 | 5421 | return nss_keylog_int(label, |
2faa1b48 | 5422 | ssl, |
555cbb32 | 5423 | ssl->s3.client_random, |
2c7bd692 CB |
5424 | SSL3_RANDOM_SIZE, |
5425 | secret, | |
5426 | secret_len); | |
2faa1b48 CB |
5427 | } |
5428 | ||
ccb8e6e0 BK |
5429 | #define SSLV2_CIPHER_LEN 3 |
5430 | ||
f63a17d6 | 5431 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format) |
ccb8e6e0 | 5432 | { |
ccb8e6e0 | 5433 | int n; |
ccb8e6e0 BK |
5434 | |
5435 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5436 | ||
5437 | if (PACKET_remaining(cipher_suites) == 0) { | |
f63a17d6 MC |
5438 | SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST, |
5439 | SSL_R_NO_CIPHERS_SPECIFIED); | |
90134d98 | 5440 | return 0; |
ccb8e6e0 BK |
5441 | } |
5442 | ||
5443 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
f63a17d6 | 5444 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
dd5a4279 | 5445 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
90134d98 | 5446 | return 0; |
ccb8e6e0 BK |
5447 | } |
5448 | ||
555cbb32 TS |
5449 | OPENSSL_free(s->s3.tmp.ciphers_raw); |
5450 | s->s3.tmp.ciphers_raw = NULL; | |
5451 | s->s3.tmp.ciphers_rawlen = 0; | |
ccb8e6e0 BK |
5452 | |
5453 | if (sslv2format) { | |
5454 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
5455 | PACKET sslv2ciphers = *cipher_suites; | |
5456 | unsigned int leadbyte; | |
5457 | unsigned char *raw; | |
5458 | ||
5459 | /* | |
5460 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
5461 | * preprocessing to convert the list first. If there are any SSLv2 only | |
5462 | * ciphersuites with a non-zero leading byte then we are going to | |
5463 | * slightly over allocate because we won't store those. But that isn't a | |
5464 | * problem. | |
5465 | */ | |
5466 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
555cbb32 | 5467 | s->s3.tmp.ciphers_raw = raw; |
ccb8e6e0 | 5468 | if (raw == NULL) { |
f63a17d6 MC |
5469 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5470 | ERR_R_MALLOC_FAILURE); | |
5471 | return 0; | |
ccb8e6e0 | 5472 | } |
555cbb32 | 5473 | for (s->s3.tmp.ciphers_rawlen = 0; |
ccb8e6e0 BK |
5474 | PACKET_remaining(&sslv2ciphers) > 0; |
5475 | raw += TLS_CIPHER_LEN) { | |
5476 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
5477 | || (leadbyte == 0 | |
5478 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
5479 | TLS_CIPHER_LEN)) | |
5480 | || (leadbyte != 0 | |
5481 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
f63a17d6 MC |
5482 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5483 | SSL_R_BAD_PACKET); | |
555cbb32 TS |
5484 | OPENSSL_free(s->s3.tmp.ciphers_raw); |
5485 | s->s3.tmp.ciphers_raw = NULL; | |
5486 | s->s3.tmp.ciphers_rawlen = 0; | |
f63a17d6 | 5487 | return 0; |
ccb8e6e0 BK |
5488 | } |
5489 | if (leadbyte == 0) | |
555cbb32 | 5490 | s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN; |
ccb8e6e0 | 5491 | } |
555cbb32 TS |
5492 | } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw, |
5493 | &s->s3.tmp.ciphers_rawlen)) { | |
f63a17d6 MC |
5494 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5495 | ERR_R_INTERNAL_ERROR); | |
5496 | return 0; | |
ccb8e6e0 | 5497 | } |
90134d98 | 5498 | return 1; |
90134d98 BK |
5499 | } |
5500 | ||
5501 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
5502 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
5503 | STACK_OF(SSL_CIPHER) **scsvs) | |
5504 | { | |
90134d98 BK |
5505 | PACKET pkt; |
5506 | ||
5507 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
5508 | return 0; | |
f63a17d6 | 5509 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0); |
90134d98 BK |
5510 | } |
5511 | ||
5512 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
5513 | STACK_OF(SSL_CIPHER) **skp, | |
5514 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
f63a17d6 | 5515 | int sslv2format, int fatal) |
90134d98 BK |
5516 | { |
5517 | const SSL_CIPHER *c; | |
5518 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
5519 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
5520 | int n; | |
5521 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
5522 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
5523 | ||
5524 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5525 | ||
5526 | if (PACKET_remaining(cipher_suites) == 0) { | |
f63a17d6 MC |
5527 | if (fatal) |
5528 | SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST, | |
5529 | SSL_R_NO_CIPHERS_SPECIFIED); | |
5530 | else | |
5531 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
90134d98 BK |
5532 | return 0; |
5533 | } | |
5534 | ||
5535 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
f63a17d6 MC |
5536 | if (fatal) |
5537 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5538 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
5539 | else | |
5540 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
5541 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
90134d98 BK |
5542 | return 0; |
5543 | } | |
5544 | ||
5545 | sk = sk_SSL_CIPHER_new_null(); | |
5546 | scsvs = sk_SSL_CIPHER_new_null(); | |
5547 | if (sk == NULL || scsvs == NULL) { | |
f63a17d6 MC |
5548 | if (fatal) |
5549 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5550 | ERR_R_MALLOC_FAILURE); | |
5551 | else | |
5552 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
90134d98 BK |
5553 | goto err; |
5554 | } | |
ccb8e6e0 BK |
5555 | |
5556 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
5557 | /* | |
5558 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
5559 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
5560 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
5561 | */ | |
5562 | if (sslv2format && cipher[0] != '\0') | |
5563 | continue; | |
5564 | ||
ccb8e6e0 BK |
5565 | /* For SSLv2-compat, ignore leading 0-byte. */ |
5566 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
5567 | if (c != NULL) { | |
90134d98 BK |
5568 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
5569 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
f63a17d6 MC |
5570 | if (fatal) |
5571 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, | |
5572 | SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
5573 | else | |
5574 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
ccb8e6e0 BK |
5575 | goto err; |
5576 | } | |
5577 | } | |
5578 | } | |
5579 | if (PACKET_remaining(cipher_suites) > 0) { | |
f63a17d6 MC |
5580 | if (fatal) |
5581 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5582 | SSL_R_BAD_LENGTH); | |
5583 | else | |
5584 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH); | |
ccb8e6e0 BK |
5585 | goto err; |
5586 | } | |
5587 | ||
90134d98 BK |
5588 | if (skp != NULL) |
5589 | *skp = sk; | |
5590 | else | |
5591 | sk_SSL_CIPHER_free(sk); | |
5592 | if (scsvs_out != NULL) | |
5593 | *scsvs_out = scsvs; | |
5594 | else | |
5595 | sk_SSL_CIPHER_free(scsvs); | |
5596 | return 1; | |
ccb8e6e0 BK |
5597 | err: |
5598 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
5599 | sk_SSL_CIPHER_free(scsvs); |
5600 | return 0; | |
ccb8e6e0 | 5601 | } |
3fc8d856 MC |
5602 | |
5603 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
5604 | { | |
5605 | ctx->max_early_data = max_early_data; | |
5606 | ||
5607 | return 1; | |
5608 | } | |
5609 | ||
46dcb945 | 5610 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
5611 | { |
5612 | return ctx->max_early_data; | |
5613 | } | |
5614 | ||
5615 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
5616 | { | |
5617 | s->max_early_data = max_early_data; | |
5618 | ||
5619 | return 1; | |
5620 | } | |
5621 | ||
a8e75d56 | 5622 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
5623 | { |
5624 | return s->max_early_data; | |
5625 | } | |
ae3947de | 5626 | |
4e8548e8 MC |
5627 | int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data) |
5628 | { | |
5629 | ctx->recv_max_early_data = recv_max_early_data; | |
5630 | ||
5631 | return 1; | |
5632 | } | |
5633 | ||
5634 | uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx) | |
5635 | { | |
5636 | return ctx->recv_max_early_data; | |
5637 | } | |
5638 | ||
5639 | int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data) | |
5640 | { | |
5641 | s->recv_max_early_data = recv_max_early_data; | |
5642 | ||
5643 | return 1; | |
5644 | } | |
5645 | ||
5646 | uint32_t SSL_get_recv_max_early_data(const SSL *s) | |
5647 | { | |
5648 | return s->recv_max_early_data; | |
5649 | } | |
5650 | ||
cf72c757 F |
5651 | __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl) |
5652 | { | |
5653 | /* Return any active Max Fragment Len extension */ | |
5654 | if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)) | |
5655 | return GET_MAX_FRAGMENT_LENGTH(ssl->session); | |
5656 | ||
5657 | /* return current SSL connection setting */ | |
5658 | return ssl->max_send_fragment; | |
5659 | } | |
5660 | ||
5661 | __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl) | |
5662 | { | |
5663 | /* Return a value regarding an active Max Fragment Len extension */ | |
5664 | if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session) | |
5665 | && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session)) | |
5666 | return GET_MAX_FRAGMENT_LENGTH(ssl->session); | |
5667 | ||
5668 | /* else limit |split_send_fragment| to current |max_send_fragment| */ | |
5669 | if (ssl->split_send_fragment > ssl->max_send_fragment) | |
5670 | return ssl->max_send_fragment; | |
5671 | ||
5672 | /* return current SSL connection setting */ | |
5673 | return ssl->split_send_fragment; | |
5674 | } | |
042c5753 MC |
5675 | |
5676 | int SSL_stateless(SSL *s) | |
5677 | { | |
5678 | int ret; | |
5679 | ||
5680 | /* Ensure there is no state left over from a previous invocation */ | |
5681 | if (!SSL_clear(s)) | |
d6bb50a5 | 5682 | return 0; |
042c5753 MC |
5683 | |
5684 | ERR_clear_error(); | |
5685 | ||
555cbb32 | 5686 | s->s3.flags |= TLS1_FLAGS_STATELESS; |
042c5753 | 5687 | ret = SSL_accept(s); |
555cbb32 | 5688 | s->s3.flags &= ~TLS1_FLAGS_STATELESS; |
042c5753 | 5689 | |
d6bb50a5 | 5690 | if (ret > 0 && s->ext.cookieok) |
c36001c3 MC |
5691 | return 1; |
5692 | ||
e440f513 MC |
5693 | if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s)) |
5694 | return 0; | |
5695 | ||
5696 | return -1; | |
042c5753 | 5697 | } |
9d75dce3 | 5698 | |
e97be718 MC |
5699 | void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) |
5700 | { | |
5701 | ctx->pha_enabled = val; | |
5702 | } | |
5703 | ||
32097b33 | 5704 | void SSL_set_post_handshake_auth(SSL *ssl, int val) |
9d75dce3 | 5705 | { |
32097b33 | 5706 | ssl->pha_enabled = val; |
9d75dce3 TS |
5707 | } |
5708 | ||
5709 | int SSL_verify_client_post_handshake(SSL *ssl) | |
5710 | { | |
5711 | if (!SSL_IS_TLS13(ssl)) { | |
5712 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION); | |
5713 | return 0; | |
5714 | } | |
5715 | if (!ssl->server) { | |
5716 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER); | |
5717 | return 0; | |
5718 | } | |
5719 | ||
5720 | if (!SSL_is_init_finished(ssl)) { | |
5721 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT); | |
5722 | return 0; | |
5723 | } | |
5724 | ||
5725 | switch (ssl->post_handshake_auth) { | |
5726 | case SSL_PHA_NONE: | |
5727 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED); | |
5728 | return 0; | |
5729 | default: | |
5730 | case SSL_PHA_EXT_SENT: | |
5731 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR); | |
5732 | return 0; | |
5733 | case SSL_PHA_EXT_RECEIVED: | |
5734 | break; | |
5735 | case SSL_PHA_REQUEST_PENDING: | |
5736 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING); | |
5737 | return 0; | |
5738 | case SSL_PHA_REQUESTED: | |
5739 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT); | |
5740 | return 0; | |
5741 | } | |
5742 | ||
5743 | ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING; | |
5744 | ||
5745 | /* checks verify_mode and algorithm_auth */ | |
5746 | if (!send_certificate_request(ssl)) { | |
5747 | ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */ | |
5748 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG); | |
5749 | return 0; | |
5750 | } | |
5751 | ||
5752 | ossl_statem_set_in_init(ssl, 1); | |
5753 | return 1; | |
5754 | } | |
df0fed9a TS |
5755 | |
5756 | int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx, | |
5757 | SSL_CTX_generate_session_ticket_fn gen_cb, | |
5758 | SSL_CTX_decrypt_session_ticket_fn dec_cb, | |
5759 | void *arg) | |
5760 | { | |
5761 | ctx->generate_ticket_cb = gen_cb; | |
5762 | ctx->decrypt_ticket_cb = dec_cb; | |
5763 | ctx->ticket_cb_data = arg; | |
5764 | return 1; | |
5765 | } | |
c9598459 MC |
5766 | |
5767 | void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx, | |
5768 | SSL_allow_early_data_cb_fn cb, | |
5769 | void *arg) | |
5770 | { | |
5771 | ctx->allow_early_data_cb = cb; | |
5772 | ctx->allow_early_data_cb_data = arg; | |
5773 | } | |
5774 | ||
5775 | void SSL_set_allow_early_data_cb(SSL *s, | |
5776 | SSL_allow_early_data_cb_fn cb, | |
5777 | void *arg) | |
5778 | { | |
5779 | s->allow_early_data_cb = cb; | |
5780 | s->allow_early_data_cb_data = arg; | |
5781 | } |