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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> |
7b63c0fa | 13 | #include "ssl_locl.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); |
aff8c126 | 1198 | OPENSSL_free(s->ext.supportedgroups); |
45436e61 | 1199 | OPENSSL_free(s->ext.peer_supportedgroups); |
a230b26e | 1200 | #endif /* OPENSSL_NO_EC */ |
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 | ||
2064 | #ifndef OPENSSL_NO_KTLS | |
2065 | ret = ktls_sendfile(SSL_get_wfd(s), fd, offset, size, flags); | |
2066 | #else | |
2067 | ret = -1; | |
2068 | #endif | |
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 | |
2077 | #ifdef OPENSSL_NO_KTLS | |
ff988500 RS |
2078 | ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(), |
2079 | "calling sendfile()"); | |
7c3a7561 BP |
2080 | #else |
2081 | SSLerr(SSL_F_SSL_SENDFILE, SSL_R_UNINITIALIZED); | |
2082 | #endif | |
2083 | return ret; | |
2084 | } | |
2085 | s->rwstate = SSL_NOTHING; | |
2086 | return ret; | |
2087 | } | |
2088 | ||
4ee7d3f9 KR |
2089 | int SSL_write(SSL *s, const void *buf, int num) |
2090 | { | |
2091 | int ret; | |
2092 | size_t written; | |
2093 | ||
2094 | if (num < 0) { | |
2095 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
2096 | return -1; | |
2097 | } | |
2098 | ||
2099 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
2100 | ||
2101 | /* | |
2102 | * The cast is safe here because ret should be <= INT_MAX because num is | |
2103 | * <= INT_MAX | |
2104 | */ | |
2105 | if (ret > 0) | |
2106 | ret = (int)written; | |
2107 | ||
2108 | return ret; | |
2109 | } | |
2110 | ||
2111 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
2112 | { | |
2113 | int ret = ssl_write_internal(s, buf, num, written); | |
2114 | ||
2115 | if (ret < 0) | |
2116 | ret = 0; | |
2117 | return ret; | |
2118 | } | |
2119 | ||
0665b4ed | 2120 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 | 2121 | { |
a0cb628b | 2122 | int ret, early_data_state; |
2a8db717 | 2123 | size_t writtmp; |
f7414b08 | 2124 | uint32_t partialwrite; |
49e7fe12 | 2125 | |
49e7fe12 MC |
2126 | switch (s->early_data_state) { |
2127 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
2128 | if (s->server |
2129 | || !SSL_in_before(s) | |
add8d0e9 MC |
2130 | || ((s->session == NULL || s->session->ext.max_early_data == 0) |
2131 | && (s->psk_use_session_cb == NULL))) { | |
09f28874 MC |
2132 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
2133 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
2134 | return 0; |
2135 | } | |
2136 | /* fall through */ | |
2137 | ||
2138 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
2139 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
2140 | ret = SSL_connect(s); | |
2141 | if (ret <= 0) { | |
2142 | /* NBIO or error */ | |
2143 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
2144 | return 0; | |
2145 | } | |
2146 | /* fall through */ | |
2147 | ||
2148 | case SSL_EARLY_DATA_WRITE_RETRY: | |
2149 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
f7414b08 MC |
2150 | /* |
2151 | * We disable partial write for early data because we don't keep track | |
2152 | * of how many bytes we've written between the SSL_write_ex() call and | |
2153 | * the flush if the flush needs to be retried) | |
2154 | */ | |
2155 | partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE; | |
2156 | s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
2a8db717 | 2157 | ret = SSL_write_ex(s, buf, num, &writtmp); |
f7414b08 | 2158 | s->mode |= partialwrite; |
2a8db717 MC |
2159 | if (!ret) { |
2160 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
2161 | return ret; | |
2162 | } | |
2163 | s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH; | |
2164 | /* fall through */ | |
2165 | ||
2166 | case SSL_EARLY_DATA_WRITE_FLUSH: | |
2167 | /* The buffering BIO is still in place so we need to flush it */ | |
2168 | if (statem_flush(s) != 1) | |
2169 | return 0; | |
2a8db717 | 2170 | *written = num; |
49e7fe12 | 2171 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; |
2a8db717 | 2172 | return 1; |
49e7fe12 | 2173 | |
116d0da5 | 2174 | case SSL_EARLY_DATA_FINISHED_READING: |
a0cb628b MC |
2175 | case SSL_EARLY_DATA_READ_RETRY: |
2176 | early_data_state = s->early_data_state; | |
09f28874 MC |
2177 | /* We are a server writing to an unauthenticated client */ |
2178 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
2179 | ret = SSL_write_ex(s, buf, num, written); | |
5fe37157 MC |
2180 | /* The buffering BIO is still in place */ |
2181 | if (ret) | |
2182 | (void)BIO_flush(s->wbio); | |
bbea9f2c | 2183 | s->early_data_state = early_data_state; |
09f28874 MC |
2184 | return ret; |
2185 | ||
49e7fe12 | 2186 | default: |
09f28874 | 2187 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
2188 | return 0; |
2189 | } | |
2190 | } | |
2191 | ||
4f43d0e7 | 2192 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
2193 | { |
2194 | /* | |
2195 | * Note that this function behaves differently from what one might | |
2196 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
2197 | * calling it once is usually not enough, even if blocking I/O is used | |
2198 | * (see ssl3_shutdown). | |
2199 | */ | |
2200 | ||
c4c32155 | 2201 | if (s->handshake_func == NULL) { |
0f113f3e MC |
2202 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
2203 | return -1; | |
2204 | } | |
2205 | ||
64f9f406 | 2206 | if (!SSL_in_init(s)) { |
e8aa8b6c | 2207 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 2208 | struct ssl_async_args args; |
ec447924 | 2209 | |
64f9f406 MC |
2210 | args.s = s; |
2211 | args.type = OTHERFUNC; | |
2212 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 2213 | |
64f9f406 MC |
2214 | return ssl_start_async_job(s, &args, ssl_io_intern); |
2215 | } else { | |
2216 | return s->method->ssl_shutdown(s); | |
2217 | } | |
ec447924 | 2218 | } else { |
64f9f406 MC |
2219 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
2220 | return -1; | |
ec447924 | 2221 | } |
0f113f3e | 2222 | } |
d02b48c6 | 2223 | |
4fbfe86a | 2224 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 2225 | { |
f14afcaa | 2226 | /* |
a9998e2f | 2227 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
2228 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
2229 | * of SSL_renegotiate(). | |
2230 | */ | |
44c04a2e MC |
2231 | if (!SSL_IS_TLS13(s)) { |
2232 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
2233 | return 0; | |
2234 | } | |
2235 | ||
2236 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
2237 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
2238 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
2239 | return 0; | |
2240 | } | |
2241 | ||
2242 | if (!SSL_is_init_finished(s)) { | |
2243 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
2244 | return 0; | |
2245 | } | |
2246 | ||
2247 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 2248 | s->key_update = updatetype; |
44c04a2e MC |
2249 | return 1; |
2250 | } | |
2251 | ||
3499327b | 2252 | int SSL_get_key_update_type(const SSL *s) |
53d1d07d MC |
2253 | { |
2254 | return s->key_update; | |
2255 | } | |
2256 | ||
4f43d0e7 | 2257 | int SSL_renegotiate(SSL *s) |
0f113f3e | 2258 | { |
44c04a2e MC |
2259 | if (SSL_IS_TLS13(s)) { |
2260 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2261 | return 0; |
44c04a2e | 2262 | } |
cda6b998 | 2263 | |
db0f35dd TS |
2264 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2265 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION); | |
2266 | return 0; | |
2267 | } | |
44959ee4 | 2268 | |
db0f35dd | 2269 | s->renegotiate = 1; |
0f113f3e | 2270 | s->new_session = 1; |
44959ee4 | 2271 | |
26a7d938 | 2272 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2273 | } |
d02b48c6 | 2274 | |
44959ee4 | 2275 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 2276 | { |
db0f35dd TS |
2277 | if (SSL_IS_TLS13(s)) { |
2278 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2279 | return 0; |
db0f35dd | 2280 | } |
cda6b998 | 2281 | |
db0f35dd TS |
2282 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2283 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION); | |
2284 | return 0; | |
2285 | } | |
c519e89f | 2286 | |
db0f35dd | 2287 | s->renegotiate = 1; |
0f113f3e | 2288 | s->new_session = 0; |
c519e89f | 2289 | |
26a7d938 | 2290 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2291 | } |
44959ee4 | 2292 | |
3499327b | 2293 | int SSL_renegotiate_pending(const SSL *s) |
0f113f3e MC |
2294 | { |
2295 | /* | |
2296 | * becomes true when negotiation is requested; false again once a | |
2297 | * handshake has finished | |
2298 | */ | |
2299 | return (s->renegotiate != 0); | |
2300 | } | |
2301 | ||
2302 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
2303 | { | |
2304 | long l; | |
2305 | ||
2306 | switch (cmd) { | |
2307 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2308 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 2309 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
2310 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
2311 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
26a7d938 | 2312 | return l; |
0f113f3e MC |
2313 | |
2314 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2315 | s->msg_callback_arg = parg; | |
2316 | return 1; | |
2317 | ||
0f113f3e MC |
2318 | case SSL_CTRL_MODE: |
2319 | return (s->mode |= larg); | |
2320 | case SSL_CTRL_CLEAR_MODE: | |
2321 | return (s->mode &= ~larg); | |
2322 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2323 | return (long)s->max_cert_list; |
0f113f3e | 2324 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2325 | if (larg < 0) |
2326 | return 0; | |
2327 | l = (long)s->max_cert_list; | |
2328 | s->max_cert_list = (size_t)larg; | |
2329 | return l; | |
0f113f3e MC |
2330 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
2331 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2332 | return 0; | |
50ec7505 BP |
2333 | #ifndef OPENSSL_NO_KTLS |
2334 | if (s->wbio != NULL && BIO_get_ktls_send(s->wbio)) | |
2335 | return 0; | |
2336 | #endif /* OPENSSL_NO_KTLS */ | |
0f113f3e | 2337 | s->max_send_fragment = larg; |
d102d9df MC |
2338 | if (s->max_send_fragment < s->split_send_fragment) |
2339 | s->split_send_fragment = s->max_send_fragment; | |
2340 | return 1; | |
2341 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 2342 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
2343 | return 0; |
2344 | s->split_send_fragment = larg; | |
0f113f3e | 2345 | return 1; |
d102d9df MC |
2346 | case SSL_CTRL_SET_MAX_PIPELINES: |
2347 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2348 | return 0; | |
2349 | s->max_pipelines = larg; | |
94777c9c MC |
2350 | if (larg > 1) |
2351 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2352 | return 1; |
0f113f3e | 2353 | case SSL_CTRL_GET_RI_SUPPORT: |
555cbb32 | 2354 | return s->s3.send_connection_binding; |
0f113f3e MC |
2355 | case SSL_CTRL_CERT_FLAGS: |
2356 | return (s->cert->cert_flags |= larg); | |
2357 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2358 | return (s->cert->cert_flags &= ~larg); | |
2359 | ||
2360 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2361 | if (parg) { | |
555cbb32 | 2362 | if (s->s3.tmp.ciphers_raw == NULL) |
0f113f3e | 2363 | return 0; |
555cbb32 TS |
2364 | *(unsigned char **)parg = s->s3.tmp.ciphers_raw; |
2365 | return (int)s->s3.tmp.ciphers_rawlen; | |
e9fa092e EK |
2366 | } else { |
2367 | return TLS_CIPHER_LEN; | |
2368 | } | |
c5364614 | 2369 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2370 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2371 | return -1; |
dccd20d1 | 2372 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2373 | return 1; |
2374 | else | |
2375 | return 0; | |
7946ab33 | 2376 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2377 | return ssl_check_allowed_versions(larg, s->max_proto_version) |
2378 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2379 | &s->min_proto_version); | |
3edabd3c CH |
2380 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2381 | return s->min_proto_version; | |
7946ab33 | 2382 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2383 | return ssl_check_allowed_versions(s->min_proto_version, larg) |
2384 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2385 | &s->max_proto_version); | |
3edabd3c CH |
2386 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2387 | return s->max_proto_version; | |
0f113f3e | 2388 | default: |
26a7d938 | 2389 | return s->method->ssl_ctrl(s, cmd, larg, parg); |
0f113f3e MC |
2390 | } |
2391 | } | |
2392 | ||
2393 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2394 | { | |
2395 | switch (cmd) { | |
2396 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2397 | s->msg_callback = (void (*) | |
2398 | (int write_p, int version, int content_type, | |
2399 | const void *buf, size_t len, SSL *ssl, | |
2400 | void *arg))(fp); | |
2401 | return 1; | |
2402 | ||
2403 | default: | |
26a7d938 | 2404 | return s->method->ssl_callback_ctrl(s, cmd, fp); |
0f113f3e MC |
2405 | } |
2406 | } | |
d3442bc7 | 2407 | |
3c1d6bbc | 2408 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2409 | { |
2410 | return ctx->sessions; | |
2411 | } | |
2412 | ||
2413 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2414 | { | |
2415 | long l; | |
2416 | /* For some cases with ctx == NULL perform syntax checks */ | |
2417 | if (ctx == NULL) { | |
2418 | switch (cmd) { | |
14536c8c | 2419 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2420 | case SSL_CTRL_SET_GROUPS_LIST: |
2421 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2422 | #endif |
2423 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2424 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2425 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2426 | default: | |
2427 | return 0; | |
2428 | } | |
2429 | } | |
2430 | ||
2431 | switch (cmd) { | |
2432 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2433 | return ctx->read_ahead; |
0f113f3e MC |
2434 | case SSL_CTRL_SET_READ_AHEAD: |
2435 | l = ctx->read_ahead; | |
2436 | ctx->read_ahead = larg; | |
26a7d938 | 2437 | return l; |
0f113f3e MC |
2438 | |
2439 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2440 | ctx->msg_callback_arg = parg; | |
2441 | return 1; | |
2442 | ||
2443 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2444 | return (long)ctx->max_cert_list; |
0f113f3e | 2445 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2446 | if (larg < 0) |
2447 | return 0; | |
2448 | l = (long)ctx->max_cert_list; | |
2449 | ctx->max_cert_list = (size_t)larg; | |
2450 | return l; | |
0f113f3e MC |
2451 | |
2452 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2453 | if (larg < 0) |
2454 | return 0; | |
2455 | l = (long)ctx->session_cache_size; | |
2456 | ctx->session_cache_size = (size_t)larg; | |
2457 | return l; | |
0f113f3e | 2458 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
26a7d938 | 2459 | return (long)ctx->session_cache_size; |
0f113f3e MC |
2460 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2461 | l = ctx->session_cache_mode; | |
2462 | ctx->session_cache_mode = larg; | |
26a7d938 | 2463 | return l; |
0f113f3e | 2464 | case SSL_CTRL_GET_SESS_CACHE_MODE: |
26a7d938 | 2465 | return ctx->session_cache_mode; |
0f113f3e MC |
2466 | |
2467 | case SSL_CTRL_SESS_NUMBER: | |
26a7d938 | 2468 | return lh_SSL_SESSION_num_items(ctx->sessions); |
0f113f3e | 2469 | case SSL_CTRL_SESS_CONNECT: |
9ef9088c | 2470 | return tsan_load(&ctx->stats.sess_connect); |
0f113f3e | 2471 | case SSL_CTRL_SESS_CONNECT_GOOD: |
9ef9088c | 2472 | return tsan_load(&ctx->stats.sess_connect_good); |
0f113f3e | 2473 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: |
9ef9088c | 2474 | return tsan_load(&ctx->stats.sess_connect_renegotiate); |
0f113f3e | 2475 | case SSL_CTRL_SESS_ACCEPT: |
9ef9088c | 2476 | return tsan_load(&ctx->stats.sess_accept); |
0f113f3e | 2477 | case SSL_CTRL_SESS_ACCEPT_GOOD: |
9ef9088c | 2478 | return tsan_load(&ctx->stats.sess_accept_good); |
0f113f3e | 2479 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: |
9ef9088c | 2480 | return tsan_load(&ctx->stats.sess_accept_renegotiate); |
0f113f3e | 2481 | case SSL_CTRL_SESS_HIT: |
9ef9088c | 2482 | return tsan_load(&ctx->stats.sess_hit); |
0f113f3e | 2483 | case SSL_CTRL_SESS_CB_HIT: |
9ef9088c | 2484 | return tsan_load(&ctx->stats.sess_cb_hit); |
0f113f3e | 2485 | case SSL_CTRL_SESS_MISSES: |
9ef9088c | 2486 | return tsan_load(&ctx->stats.sess_miss); |
0f113f3e | 2487 | case SSL_CTRL_SESS_TIMEOUTS: |
9ef9088c | 2488 | return tsan_load(&ctx->stats.sess_timeout); |
0f113f3e | 2489 | case SSL_CTRL_SESS_CACHE_FULL: |
9ef9088c | 2490 | return tsan_load(&ctx->stats.sess_cache_full); |
0f113f3e MC |
2491 | case SSL_CTRL_MODE: |
2492 | return (ctx->mode |= larg); | |
2493 | case SSL_CTRL_CLEAR_MODE: | |
2494 | return (ctx->mode &= ~larg); | |
2495 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2496 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2497 | return 0; | |
2498 | ctx->max_send_fragment = larg; | |
d102d9df | 2499 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2500 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2501 | return 1; |
d102d9df | 2502 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2503 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2504 | return 0; |
2505 | ctx->split_send_fragment = larg; | |
2506 | return 1; | |
2507 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2508 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2509 | return 0; | |
2510 | ctx->max_pipelines = larg; | |
07077415 | 2511 | return 1; |
0f113f3e MC |
2512 | case SSL_CTRL_CERT_FLAGS: |
2513 | return (ctx->cert->cert_flags |= larg); | |
2514 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2515 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2516 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2517 | return ssl_check_allowed_versions(larg, ctx->max_proto_version) |
2518 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2519 | &ctx->min_proto_version); | |
3edabd3c CH |
2520 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2521 | return ctx->min_proto_version; | |
7946ab33 | 2522 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2523 | return ssl_check_allowed_versions(ctx->min_proto_version, larg) |
2524 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2525 | &ctx->max_proto_version); | |
3edabd3c CH |
2526 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2527 | return ctx->max_proto_version; | |
0f113f3e | 2528 | default: |
26a7d938 | 2529 | return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg); |
0f113f3e MC |
2530 | } |
2531 | } | |
2532 | ||
2533 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2534 | { | |
2535 | switch (cmd) { | |
2536 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2537 | ctx->msg_callback = (void (*) | |
2538 | (int write_p, int version, int content_type, | |
2539 | const void *buf, size_t len, SSL *ssl, | |
2540 | void *arg))(fp); | |
2541 | return 1; | |
2542 | ||
2543 | default: | |
26a7d938 | 2544 | return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp); |
0f113f3e MC |
2545 | } |
2546 | } | |
d3442bc7 | 2547 | |
ccd86b68 | 2548 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2549 | { |
90d9e49a DSH |
2550 | if (a->id > b->id) |
2551 | return 1; | |
2552 | if (a->id < b->id) | |
2553 | return -1; | |
2554 | return 0; | |
0f113f3e MC |
2555 | } |
2556 | ||
2557 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2558 | const SSL_CIPHER *const *bp) | |
2559 | { | |
90d9e49a DSH |
2560 | if ((*ap)->id > (*bp)->id) |
2561 | return 1; | |
2562 | if ((*ap)->id < (*bp)->id) | |
2563 | return -1; | |
2564 | return 0; | |
0f113f3e | 2565 | } |
d02b48c6 | 2566 | |
4f43d0e7 | 2567 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2568 | * preference */ |
0821bcd4 | 2569 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2570 | { |
2571 | if (s != NULL) { | |
2572 | if (s->cipher_list != NULL) { | |
26a7d938 | 2573 | return s->cipher_list; |
0f113f3e | 2574 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { |
26a7d938 | 2575 | return s->ctx->cipher_list; |
0f113f3e MC |
2576 | } |
2577 | } | |
26a7d938 | 2578 | return NULL; |
0f113f3e MC |
2579 | } |
2580 | ||
831eef2c NM |
2581 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2582 | { | |
eee2a6a7 | 2583 | if ((s == NULL) || !s->server) |
831eef2c | 2584 | return NULL; |
eee2a6a7 | 2585 | return s->peer_ciphers; |
831eef2c NM |
2586 | } |
2587 | ||
8b8e5bed | 2588 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2589 | { |
2590 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2591 | int i; | |
1d0c08b4 | 2592 | |
0f113f3e MC |
2593 | ciphers = SSL_get_ciphers(s); |
2594 | if (!ciphers) | |
2595 | return NULL; | |
1d0c08b4 MC |
2596 | if (!ssl_set_client_disabled(s)) |
2597 | return NULL; | |
0f113f3e MC |
2598 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { |
2599 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
8af91fd9 | 2600 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) { |
0f113f3e MC |
2601 | if (!sk) |
2602 | sk = sk_SSL_CIPHER_new_null(); | |
2603 | if (!sk) | |
2604 | return NULL; | |
2605 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2606 | sk_SSL_CIPHER_free(sk); | |
2607 | return NULL; | |
2608 | } | |
2609 | } | |
2610 | } | |
2611 | return sk; | |
2612 | } | |
8b8e5bed | 2613 | |
4f43d0e7 | 2614 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2615 | * algorithm id */ |
f73e07cf | 2616 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2617 | { |
2618 | if (s != NULL) { | |
2619 | if (s->cipher_list_by_id != NULL) { | |
26a7d938 | 2620 | return s->cipher_list_by_id; |
0f113f3e | 2621 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { |
26a7d938 | 2622 | return s->ctx->cipher_list_by_id; |
0f113f3e MC |
2623 | } |
2624 | } | |
26a7d938 | 2625 | return NULL; |
0f113f3e | 2626 | } |
d02b48c6 | 2627 | |
4f43d0e7 | 2628 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2629 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2630 | { | |
4a640fb6 | 2631 | const SSL_CIPHER *c; |
0f113f3e MC |
2632 | STACK_OF(SSL_CIPHER) *sk; |
2633 | ||
2634 | if (s == NULL) | |
26a7d938 | 2635 | return NULL; |
0f113f3e MC |
2636 | sk = SSL_get_ciphers(s); |
2637 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
26a7d938 | 2638 | return NULL; |
0f113f3e MC |
2639 | c = sk_SSL_CIPHER_value(sk, n); |
2640 | if (c == NULL) | |
26a7d938 K |
2641 | return NULL; |
2642 | return c->name; | |
0f113f3e | 2643 | } |
d02b48c6 | 2644 | |
9d5ac953 KY |
2645 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2646 | * preference */ | |
2647 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2648 | { | |
2649 | if (ctx != NULL) | |
2650 | return ctx->cipher_list; | |
2651 | return NULL; | |
2652 | } | |
2653 | ||
3c83c5ba SR |
2654 | /* |
2655 | * Distinguish between ciphers controlled by set_ciphersuite() and | |
2656 | * set_cipher_list() when counting. | |
2657 | */ | |
2658 | static int cipher_list_tls12_num(STACK_OF(SSL_CIPHER) *sk) | |
2659 | { | |
2660 | int i, num = 0; | |
2661 | const SSL_CIPHER *c; | |
2662 | ||
2663 | if (sk == NULL) | |
2664 | return 0; | |
2665 | for (i = 0; i < sk_SSL_CIPHER_num(sk); ++i) { | |
2666 | c = sk_SSL_CIPHER_value(sk, i); | |
2667 | if (c->min_tls >= TLS1_3_VERSION) | |
2668 | continue; | |
2669 | num++; | |
2670 | } | |
2671 | return num; | |
2672 | } | |
2673 | ||
25f923dd | 2674 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2675 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2676 | { |
2677 | STACK_OF(SSL_CIPHER) *sk; | |
2678 | ||
f865b081 MC |
2679 | sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites, |
2680 | &ctx->cipher_list, &ctx->cipher_list_by_id, str, | |
2681 | ctx->cert); | |
0f113f3e MC |
2682 | /* |
2683 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2684 | * find a cipher matching the given rule string (for example if the rule | |
2685 | * string specifies a cipher which has been disabled). This is not an | |
2686 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2687 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2688 | */ | |
2689 | if (sk == NULL) | |
2690 | return 0; | |
3c83c5ba | 2691 | else if (cipher_list_tls12_num(sk) == 0) { |
0f113f3e MC |
2692 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); |
2693 | return 0; | |
2694 | } | |
2695 | return 1; | |
2696 | } | |
d02b48c6 | 2697 | |
4f43d0e7 | 2698 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2699 | int SSL_set_cipher_list(SSL *s, const char *str) |
2700 | { | |
2701 | STACK_OF(SSL_CIPHER) *sk; | |
2702 | ||
f865b081 MC |
2703 | sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites, |
2704 | &s->cipher_list, &s->cipher_list_by_id, str, | |
2705 | s->cert); | |
0f113f3e MC |
2706 | /* see comment in SSL_CTX_set_cipher_list */ |
2707 | if (sk == NULL) | |
2708 | return 0; | |
3c83c5ba | 2709 | else if (cipher_list_tls12_num(sk) == 0) { |
0f113f3e MC |
2710 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); |
2711 | return 0; | |
2712 | } | |
2713 | return 1; | |
2714 | } | |
d02b48c6 | 2715 | |
a216df59 | 2716 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size) |
0f113f3e MC |
2717 | { |
2718 | char *p; | |
a216df59 | 2719 | STACK_OF(SSL_CIPHER) *clntsk, *srvrsk; |
4a640fb6 | 2720 | const SSL_CIPHER *c; |
0f113f3e MC |
2721 | int i; |
2722 | ||
a216df59 | 2723 | if (!s->server |
eee2a6a7 | 2724 | || s->peer_ciphers == NULL |
a216df59 | 2725 | || size < 2) |
26a7d938 | 2726 | return NULL; |
0f113f3e MC |
2727 | |
2728 | p = buf; | |
eee2a6a7 | 2729 | clntsk = s->peer_ciphers; |
a216df59 MC |
2730 | srvrsk = SSL_get_ciphers(s); |
2731 | if (clntsk == NULL || srvrsk == NULL) | |
2732 | return NULL; | |
0f113f3e | 2733 | |
a216df59 | 2734 | if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0) |
0f113f3e MC |
2735 | return NULL; |
2736 | ||
a216df59 | 2737 | for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) { |
0f113f3e MC |
2738 | int n; |
2739 | ||
a216df59 MC |
2740 | c = sk_SSL_CIPHER_value(clntsk, i); |
2741 | if (sk_SSL_CIPHER_find(srvrsk, c) < 0) | |
2742 | continue; | |
2743 | ||
0f113f3e | 2744 | n = strlen(c->name); |
a216df59 | 2745 | if (n + 1 > size) { |
0f113f3e MC |
2746 | if (p != buf) |
2747 | --p; | |
2748 | *p = '\0'; | |
2749 | return buf; | |
2750 | } | |
4cacc9d5 | 2751 | strcpy(p, c->name); |
0f113f3e MC |
2752 | p += n; |
2753 | *(p++) = ':'; | |
a216df59 | 2754 | size -= n + 1; |
0f113f3e MC |
2755 | } |
2756 | p[-1] = '\0'; | |
26a7d938 | 2757 | return buf; |
0f113f3e MC |
2758 | } |
2759 | ||
52b8dad8 | 2760 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2761 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2762 | */ |
2763 | ||
f1fd4544 | 2764 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2765 | { |
2766 | if (type != TLSEXT_NAMETYPE_host_name) | |
2767 | return NULL; | |
a13c20f6 | 2768 | |
1c4aa31d | 2769 | /* |
328a0547 BK |
2770 | * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an |
2771 | * SNI value to return if we are resuming/resumed. N.B. that we still | |
2772 | * call the relevant callbacks for such resumption flows, and callbacks | |
2773 | * might error out if there is not a SNI value available. | |
1c4aa31d | 2774 | */ |
328a0547 BK |
2775 | if (s->hit) |
2776 | return s->session->ext.hostname; | |
2777 | return s->ext.hostname; | |
0f113f3e | 2778 | } |
ed3883d2 | 2779 | |
f1fd4544 | 2780 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2781 | { |
2782 | if (s->session | |
aff8c126 RS |
2783 | && (!s->ext.hostname ? s->session-> |
2784 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2785 | return TLSEXT_NAMETYPE_host_name; |
2786 | return -1; | |
2787 | } | |
ee2ffc27 | 2788 | |
0f113f3e MC |
2789 | /* |
2790 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2791 | * expected that this function is called from the callback set by |
0f113f3e MC |
2792 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2793 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2794 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2795 | * string may be truncated. The current, but experimental algorithm for | |
2796 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2797 | * is indicated to the callback. In this case, the client application has to | |
2798 | * abort the connection or have a default application level protocol. 2) If | |
2799 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2800 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2801 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2802 | * protocol in the server's list that it supports and selects this protocol. | |
2803 | * This is because it's assumed that the server has better information about | |
2804 | * which protocol a client should use. 4) If the client doesn't support any | |
2805 | * of the server's advertised protocols, then this is treated the same as | |
2806 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2807 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2808 | */ |
0f113f3e MC |
2809 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2810 | const unsigned char *server, | |
2811 | unsigned int server_len, | |
a230b26e | 2812 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2813 | { |
2814 | unsigned int i, j; | |
2815 | const unsigned char *result; | |
2816 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2817 | ||
2818 | /* | |
2819 | * For each protocol in server preference order, see if we support it. | |
2820 | */ | |
2821 | for (i = 0; i < server_len;) { | |
2822 | for (j = 0; j < client_len;) { | |
2823 | if (server[i] == client[j] && | |
2824 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2825 | /* We found a match */ | |
2826 | result = &server[i]; | |
2827 | status = OPENSSL_NPN_NEGOTIATED; | |
2828 | goto found; | |
2829 | } | |
2830 | j += client[j]; | |
2831 | j++; | |
2832 | } | |
2833 | i += server[i]; | |
2834 | i++; | |
2835 | } | |
2836 | ||
2837 | /* There's no overlap between our protocols and the server's list. */ | |
2838 | result = client; | |
2839 | status = OPENSSL_NPN_NO_OVERLAP; | |
2840 | ||
2841 | found: | |
2842 | *out = (unsigned char *)result + 1; | |
2843 | *outlen = result[0]; | |
2844 | return status; | |
2845 | } | |
ee2ffc27 | 2846 | |
e481f9b9 | 2847 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2848 | /* |
2849 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2850 | * client's requested protocol for this connection and returns 0. If the | |
2851 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2852 | * the client can request any protocol it chooses. The value returned from | |
2853 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2854 | * provided by the callback. |
2855 | */ | |
0f113f3e MC |
2856 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2857 | unsigned *len) | |
2858 | { | |
aff8c126 | 2859 | *data = s->ext.npn; |
0f113f3e MC |
2860 | if (!*data) { |
2861 | *len = 0; | |
2862 | } else { | |
aff8c126 | 2863 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2864 | } |
2865 | } | |
2866 | ||
2867 | /* | |
aff8c126 | 2868 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2869 | * a TLS server needs a list of supported protocols for Next Protocol |
2870 | * Negotiation. The returned list must be in wire format. The list is | |
2871 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2872 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2873 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2874 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2875 | * ServerHello. | |
2876 | */ | |
aff8c126 | 2877 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2878 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2879 | void *arg) |
0f113f3e | 2880 | { |
aff8c126 RS |
2881 | ctx->ext.npn_advertised_cb = cb; |
2882 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2883 | } |
2884 | ||
2885 | /* | |
2886 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2887 | * client needs to select a protocol from the server's provided list. |out| |
2888 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2889 | * The length of the protocol name must be written into |outlen|. The |
2890 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2891 | * callback can assume that |in| is syntactically valid. The client must | |
2892 | * select a protocol. It is fatal to the connection if this callback returns | |
2893 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2894 | */ |
aff8c126 | 2895 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2896 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2897 | void *arg) |
0f113f3e | 2898 | { |
aff8c126 RS |
2899 | ctx->ext.npn_select_cb = cb; |
2900 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2901 | } |
e481f9b9 | 2902 | #endif |
a398f821 | 2903 | |
0f113f3e MC |
2904 | /* |
2905 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2906 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2907 | * length-prefixed strings). Returns 0 on success. |
2908 | */ | |
2909 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2910 | unsigned int protos_len) |
0f113f3e | 2911 | { |
aff8c126 RS |
2912 | OPENSSL_free(ctx->ext.alpn); |
2913 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2914 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2915 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2916 | return 1; |
72e9be3d | 2917 | } |
aff8c126 | 2918 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2919 | |
2920 | return 0; | |
2921 | } | |
2922 | ||
2923 | /* | |
2924 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2925 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2926 | * length-prefixed strings). Returns 0 on success. |
2927 | */ | |
2928 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2929 | unsigned int protos_len) |
0f113f3e | 2930 | { |
aff8c126 RS |
2931 | OPENSSL_free(ssl->ext.alpn); |
2932 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2933 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2934 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2935 | return 1; |
72e9be3d | 2936 | } |
aff8c126 | 2937 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2938 | |
2939 | return 0; | |
2940 | } | |
2941 | ||
2942 | /* | |
2943 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2944 | * called during ClientHello processing in order to select an ALPN protocol | |
2945 | * from the client's list of offered protocols. | |
2946 | */ | |
2947 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2948 | SSL_CTX_alpn_select_cb_func cb, |
2949 | void *arg) | |
0f113f3e | 2950 | { |
aff8c126 RS |
2951 | ctx->ext.alpn_select_cb = cb; |
2952 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2953 | } |
2954 | ||
2955 | /* | |
69687aa8 F |
2956 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2957 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2958 | * (not including the leading length-prefix byte). If the server didn't |
2959 | * respond with a negotiated protocol then |*len| will be zero. | |
2960 | */ | |
6f017a8f | 2961 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2962 | unsigned int *len) |
0f113f3e | 2963 | { |
555cbb32 | 2964 | *data = ssl->s3.alpn_selected; |
0f113f3e MC |
2965 | if (*data == NULL) |
2966 | *len = 0; | |
2967 | else | |
555cbb32 | 2968 | *len = (unsigned int)ssl->s3.alpn_selected_len; |
0f113f3e MC |
2969 | } |
2970 | ||
74b4b494 | 2971 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e | 2972 | const char *label, size_t llen, |
23cec1f4 | 2973 | const unsigned char *context, size_t contextlen, |
0f113f3e MC |
2974 | int use_context) |
2975 | { | |
c8a18468 | 2976 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2977 | return -1; |
e0af0405 | 2978 | |
0f113f3e | 2979 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
23cec1f4 MC |
2980 | llen, context, |
2981 | contextlen, use_context); | |
0f113f3e | 2982 | } |
e0af0405 | 2983 | |
b38ede80 TT |
2984 | int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen, |
2985 | const char *label, size_t llen, | |
2986 | const unsigned char *context, | |
2987 | size_t contextlen) | |
2988 | { | |
2989 | if (s->version != TLS1_3_VERSION) | |
2990 | return 0; | |
2991 | ||
2992 | return tls13_export_keying_material_early(s, out, olen, label, llen, | |
2993 | context, contextlen); | |
2994 | } | |
2995 | ||
3c1d6bbc | 2996 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2997 | { |
bd5d27c1 | 2998 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2999 | unsigned long l; |
bd5d27c1 DB |
3000 | unsigned char tmp_storage[4]; |
3001 | ||
3002 | if (a->session_id_length < sizeof(tmp_storage)) { | |
3003 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
3004 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
3005 | session_id = tmp_storage; | |
3006 | } | |
0f113f3e MC |
3007 | |
3008 | l = (unsigned long) | |
bd5d27c1 DB |
3009 | ((unsigned long)session_id[0]) | |
3010 | ((unsigned long)session_id[1] << 8L) | | |
3011 | ((unsigned long)session_id[2] << 16L) | | |
3012 | ((unsigned long)session_id[3] << 24L); | |
26a7d938 | 3013 | return l; |
0f113f3e MC |
3014 | } |
3015 | ||
3016 | /* | |
3017 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 3018 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
3019 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
3020 | * being able to construct an SSL_SESSION that will collide with any existing | |
3021 | * session with a matching session ID. | |
3022 | */ | |
3023 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
3024 | { | |
3025 | if (a->ssl_version != b->ssl_version) | |
208fb891 | 3026 | return 1; |
0f113f3e | 3027 | if (a->session_id_length != b->session_id_length) |
208fb891 | 3028 | return 1; |
26a7d938 | 3029 | return memcmp(a->session_id, b->session_id, a->session_id_length); |
0f113f3e MC |
3030 | } |
3031 | ||
3032 | /* | |
3033 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 3034 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
3035 | * variable. The reason is that the functions aren't static, they're exposed |
3036 | * via ssl.h. | |
3037 | */ | |
97b17195 | 3038 | |
4ebb342f | 3039 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
3040 | { |
3041 | SSL_CTX *ret = NULL; | |
3042 | ||
3043 | if (meth == NULL) { | |
3044 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
26a7d938 | 3045 | return NULL; |
0f113f3e MC |
3046 | } |
3047 | ||
0fc32b07 MC |
3048 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
3049 | return NULL; | |
7fa792d1 | 3050 | |
0f113f3e MC |
3051 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
3052 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
3053 | goto err; | |
3054 | } | |
b51bce94 | 3055 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
3056 | if (ret == NULL) |
3057 | goto err; | |
3058 | ||
0f113f3e | 3059 | ret->method = meth; |
7946ab33 KR |
3060 | ret->min_proto_version = 0; |
3061 | ret->max_proto_version = 0; | |
693cf80c | 3062 | ret->mode = SSL_MODE_AUTO_RETRY; |
0f113f3e MC |
3063 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
3064 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 3065 | /* We take the system default. */ |
0f113f3e | 3066 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 3067 | ret->references = 1; |
16203f7b AG |
3068 | ret->lock = CRYPTO_THREAD_lock_new(); |
3069 | if (ret->lock == NULL) { | |
3070 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
3071 | OPENSSL_free(ret); | |
3072 | return NULL; | |
3073 | } | |
0f113f3e | 3074 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 3075 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
3076 | if ((ret->cert = ssl_cert_new()) == NULL) |
3077 | goto err; | |
3078 | ||
62d0577e | 3079 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
3080 | if (ret->sessions == NULL) |
3081 | goto err; | |
3082 | ret->cert_store = X509_STORE_new(); | |
3083 | if (ret->cert_store == NULL) | |
3084 | goto err; | |
ed29e82a RP |
3085 | #ifndef OPENSSL_NO_CT |
3086 | ret->ctlog_store = CTLOG_STORE_new(); | |
3087 | if (ret->ctlog_store == NULL) | |
3088 | goto err; | |
3089 | #endif | |
f865b081 | 3090 | |
5d120511 | 3091 | if (!SSL_CTX_set_ciphersuites(ret, OSSL_default_ciphersuites())) |
f865b081 MC |
3092 | goto err; |
3093 | ||
61986d32 | 3094 | if (!ssl_create_cipher_list(ret->method, |
f865b081 | 3095 | ret->tls13_ciphersuites, |
a230b26e | 3096 | &ret->cipher_list, &ret->cipher_list_by_id, |
5d120511 | 3097 | OSSL_default_cipher_list(), ret->cert) |
a230b26e | 3098 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { |
0f113f3e MC |
3099 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
3100 | goto err2; | |
3101 | } | |
3102 | ||
3103 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 3104 | if (ret->param == NULL) |
0f113f3e MC |
3105 | goto err; |
3106 | ||
3107 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
3108 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
3109 | goto err2; | |
3110 | } | |
3111 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
3112 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
3113 | goto err2; | |
3114 | } | |
3115 | ||
fa7c2637 | 3116 | if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) |
0f113f3e MC |
3117 | goto err; |
3118 | ||
98732979 MC |
3119 | if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) |
3120 | goto err; | |
3121 | ||
25a807bc F |
3122 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
3123 | goto err; | |
0f113f3e | 3124 | |
4bfb96f2 TS |
3125 | if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL) |
3126 | goto err; | |
3127 | ||
0f113f3e MC |
3128 | /* No compression for DTLS */ |
3129 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
3130 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
3131 | ||
3132 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 3133 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 3134 | |
4e2e1ec9 | 3135 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
3136 | if ((RAND_bytes(ret->ext.tick_key_name, |
3137 | sizeof(ret->ext.tick_key_name)) <= 0) | |
4cffafe9 | 3138 | || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key, |
4bfb96f2 | 3139 | sizeof(ret->ext.secure->tick_hmac_key)) <= 0) |
4cffafe9 | 3140 | || (RAND_priv_bytes(ret->ext.secure->tick_aes_key, |
4bfb96f2 | 3141 | sizeof(ret->ext.secure->tick_aes_key)) <= 0)) |
0f113f3e | 3142 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 3143 | |
4cffafe9 | 3144 | if (RAND_priv_bytes(ret->ext.cookie_hmac_key, |
43054d3d MC |
3145 | sizeof(ret->ext.cookie_hmac_key)) <= 0) |
3146 | goto err; | |
3147 | ||
edc032b5 | 3148 | #ifndef OPENSSL_NO_SRP |
61986d32 | 3149 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 3150 | goto err; |
edc032b5 | 3151 | #endif |
4db9677b | 3152 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
3153 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
3154 | # define eng_strx(x) #x | |
3155 | # define eng_str(x) eng_strx(x) | |
3156 | /* Use specific client engine automatically... ignore errors */ | |
3157 | { | |
3158 | ENGINE *eng; | |
3159 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
3160 | if (!eng) { | |
3161 | ERR_clear_error(); | |
3162 | ENGINE_load_builtin_engines(); | |
3163 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
3164 | } | |
3165 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
3166 | ERR_clear_error(); | |
3167 | } | |
3168 | # endif | |
3169 | #endif | |
3170 | /* | |
3171 | * Default is to connect to non-RI servers. When RI is more widely | |
3172 | * deployed might change this. | |
3173 | */ | |
3174 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
3175 | /* |
3176 | * Disable compression by default to prevent CRIME. Applications can | |
3177 | * re-enable compression by configuring | |
3178 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
a5816a5a MC |
3179 | * or by using the SSL_CONF library. Similarly we also enable TLSv1.3 |
3180 | * middlebox compatibility by default. This may be disabled by default in | |
3181 | * a later OpenSSL version. | |
dc5744cb | 3182 | */ |
a5816a5a | 3183 | ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT; |
0f113f3e | 3184 | |
aff8c126 | 3185 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 3186 | |
bfa9a9af | 3187 | /* |
c39e4048 BK |
3188 | * We cannot usefully set a default max_early_data here (which gets |
3189 | * propagated in SSL_new(), for the following reason: setting the | |
3190 | * SSL field causes tls_construct_stoc_early_data() to tell the | |
3191 | * client that early data will be accepted when constructing a TLS 1.3 | |
3192 | * session ticket, and the client will accordingly send us early data | |
3193 | * when using that ticket (if the client has early data to send). | |
3194 | * However, in order for the early data to actually be consumed by | |
3195 | * the application, the application must also have calls to | |
3196 | * SSL_read_early_data(); otherwise we'll just skip past the early data | |
3197 | * and ignore it. So, since the application must add calls to | |
3198 | * SSL_read_early_data(), we also require them to add | |
3199 | * calls to SSL_CTX_set_max_early_data() in order to use early data, | |
3200 | * eliminating the bandwidth-wasting early data in the case described | |
3201 | * above. | |
bfa9a9af | 3202 | */ |
c39e4048 | 3203 | ret->max_early_data = 0; |
bfa9a9af | 3204 | |
4e8548e8 MC |
3205 | /* |
3206 | * Default recv_max_early_data is a fully loaded single record. Could be | |
3207 | * split across multiple records in practice. We set this differently to | |
3208 | * max_early_data so that, in the default case, we do not advertise any | |
3209 | * support for early_data, but if a client were to send us some (e.g. | |
3210 | * because of an old, stale ticket) then we will tolerate it and skip over | |
3211 | * it. | |
3212 | */ | |
3213 | ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
3214 | ||
36ff232c MC |
3215 | /* By default we send two session tickets automatically in TLSv1.3 */ |
3216 | ret->num_tickets = 2; | |
9d0a8bb7 | 3217 | |
8a5ed9dc TM |
3218 | ssl_ctx_system_config(ret); |
3219 | ||
16203f7b | 3220 | return ret; |
0f113f3e MC |
3221 | err: |
3222 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
3223 | err2: | |
e0e920b1 | 3224 | SSL_CTX_free(ret); |
16203f7b | 3225 | return NULL; |
0f113f3e | 3226 | } |
d02b48c6 | 3227 | |
c5ebfcab | 3228 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 3229 | { |
16203f7b | 3230 | int i; |
c5ebfcab | 3231 | |
2f545ae4 | 3232 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
3233 | return 0; |
3234 | ||
3235 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
3236 | REF_ASSERT_ISNT(i < 2); | |
3237 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
3238 | } |
3239 | ||
4f43d0e7 | 3240 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
3241 | { |
3242 | int i; | |
d02b48c6 | 3243 | |
0f113f3e MC |
3244 | if (a == NULL) |
3245 | return; | |
d02b48c6 | 3246 | |
2f545ae4 | 3247 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 3248 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
3249 | if (i > 0) |
3250 | return; | |
f3f1cf84 | 3251 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 3252 | |
222561fe | 3253 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 3254 | dane_ctx_final(&a->dane); |
0f113f3e MC |
3255 | |
3256 | /* | |
3257 | * Free internal session cache. However: the remove_cb() may reference | |
3258 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
3259 | * after the sessions were flushed. | |
3260 | * As the ex_data handling routines might also touch the session cache, | |
3261 | * the most secure solution seems to be: empty (flush) the cache, then | |
3262 | * free ex_data, then finally free the cache. | |
3263 | * (See ticket [openssl.org #212].) | |
3264 | */ | |
3265 | if (a->sessions != NULL) | |
3266 | SSL_CTX_flush_sessions(a, 0); | |
3267 | ||
3268 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 3269 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 3270 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
3271 | #ifndef OPENSSL_NO_CT |
3272 | CTLOG_STORE_free(a->ctlog_store); | |
3273 | #endif | |
25aaa98a RS |
3274 | sk_SSL_CIPHER_free(a->cipher_list); |
3275 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
f865b081 | 3276 | sk_SSL_CIPHER_free(a->tls13_ciphersuites); |
e0e920b1 | 3277 | ssl_cert_free(a->cert); |
fa7c2637 | 3278 | sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free); |
98732979 | 3279 | sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free); |
222561fe | 3280 | sk_X509_pop_free(a->extra_certs, X509_free); |
0f113f3e | 3281 | a->comp_methods = NULL; |
e783bae2 | 3282 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 3283 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 3284 | #endif |
edc032b5 | 3285 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 3286 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 3287 | #endif |
bdfe932d | 3288 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 3289 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 3290 | #endif |
8671b898 | 3291 | |
e481f9b9 | 3292 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
3293 | OPENSSL_free(a->ext.ecpointformats); |
3294 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 3295 | #endif |
aff8c126 | 3296 | OPENSSL_free(a->ext.alpn); |
4bfb96f2 | 3297 | OPENSSL_secure_free(a->ext.secure); |
8671b898 | 3298 | |
16203f7b AG |
3299 | CRYPTO_THREAD_lock_free(a->lock); |
3300 | ||
0f113f3e MC |
3301 | OPENSSL_free(a); |
3302 | } | |
d02b48c6 | 3303 | |
3ae76679 | 3304 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
3305 | { |
3306 | ctx->default_passwd_callback = cb; | |
3307 | } | |
3308 | ||
3309 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
3310 | { | |
3311 | ctx->default_passwd_callback_userdata = u; | |
3312 | } | |
3313 | ||
0c452abc CH |
3314 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
3315 | { | |
3316 | return ctx->default_passwd_callback; | |
3317 | } | |
3318 | ||
3319 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
3320 | { | |
3321 | return ctx->default_passwd_callback_userdata; | |
3322 | } | |
3323 | ||
a974e64a MC |
3324 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
3325 | { | |
3326 | s->default_passwd_callback = cb; | |
3327 | } | |
3328 | ||
3329 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
3330 | { | |
3331 | s->default_passwd_callback_userdata = u; | |
3332 | } | |
3333 | ||
0c452abc CH |
3334 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
3335 | { | |
3336 | return s->default_passwd_callback; | |
3337 | } | |
3338 | ||
3339 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
3340 | { | |
3341 | return s->default_passwd_callback_userdata; | |
3342 | } | |
3343 | ||
0f113f3e MC |
3344 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
3345 | int (*cb) (X509_STORE_CTX *, void *), | |
3346 | void *arg) | |
3347 | { | |
3348 | ctx->app_verify_callback = cb; | |
3349 | ctx->app_verify_arg = arg; | |
3350 | } | |
3351 | ||
3352 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
3353 | int (*cb) (int, X509_STORE_CTX *)) | |
3354 | { | |
3355 | ctx->verify_mode = mode; | |
3356 | ctx->default_verify_callback = cb; | |
3357 | } | |
3358 | ||
3359 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
3360 | { | |
3361 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
3362 | } | |
3363 | ||
a230b26e | 3364 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
3365 | { |
3366 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
3367 | } | |
3368 | ||
3369 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
3370 | { | |
3371 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
3372 | } | |
18d71588 | 3373 | |
2cf28d61 | 3374 | void ssl_set_masks(SSL *s) |
0f113f3e | 3375 | { |
6383d316 | 3376 | CERT *c = s->cert; |
555cbb32 | 3377 | uint32_t *pvalid = s->s3.tmp.valid_flags; |
bc71f910 | 3378 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 3379 | unsigned long mask_k, mask_a; |
10bf4fc2 | 3380 | #ifndef OPENSSL_NO_EC |
361a1191 | 3381 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 3382 | #endif |
0f113f3e MC |
3383 | if (c == NULL) |
3384 | return; | |
d02b48c6 | 3385 | |
bc36ee62 | 3386 | #ifndef OPENSSL_NO_DH |
0f113f3e | 3387 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 3388 | #else |
361a1191 | 3389 | dh_tmp = 0; |
d02b48c6 RE |
3390 | #endif |
3391 | ||
d0ff28f8 | 3392 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
3393 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
3394 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 3395 | #ifndef OPENSSL_NO_EC |
6383d316 | 3396 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 3397 | #endif |
0f113f3e MC |
3398 | mask_k = 0; |
3399 | mask_a = 0; | |
0e1dba93 | 3400 | |
77359d22 RL |
3401 | OSSL_TRACE4(TLS_CIPHER, "dh_tmp=%d rsa_enc=%d rsa_sign=%d dsa_sign=%d\n", |
3402 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e | 3403 | |
2a9b9654 | 3404 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 3405 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
3406 | mask_k |= SSL_kGOST; |
3407 | mask_a |= SSL_aGOST12; | |
3408 | } | |
4020c0b3 | 3409 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
3410 | mask_k |= SSL_kGOST; |
3411 | mask_a |= SSL_aGOST12; | |
3412 | } | |
4020c0b3 | 3413 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
3414 | mask_k |= SSL_kGOST; |
3415 | mask_a |= SSL_aGOST01; | |
3416 | } | |
2a9b9654 | 3417 | #endif |
0f113f3e | 3418 | |
361a1191 | 3419 | if (rsa_enc) |
0f113f3e | 3420 | mask_k |= SSL_kRSA; |
d02b48c6 | 3421 | |
0f113f3e MC |
3422 | if (dh_tmp) |
3423 | mask_k |= SSL_kDHE; | |
d02b48c6 | 3424 | |
6aaa29fb DSH |
3425 | /* |
3426 | * If we only have an RSA-PSS certificate allow RSA authentication | |
3427 | * if TLS 1.2 and peer supports it. | |
3428 | */ | |
3429 | ||
3430 | if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN) | |
3431 | && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN | |
3432 | && TLS1_get_version(s) == TLS1_2_VERSION)) | |
0f113f3e | 3433 | mask_a |= SSL_aRSA; |
d02b48c6 | 3434 | |
0f113f3e MC |
3435 | if (dsa_sign) { |
3436 | mask_a |= SSL_aDSS; | |
0f113f3e | 3437 | } |
d02b48c6 | 3438 | |
0f113f3e | 3439 | mask_a |= SSL_aNULL; |
d02b48c6 | 3440 | |
0f113f3e MC |
3441 | /* |
3442 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
3443 | * depending on the key usage extension. | |
3444 | */ | |
14536c8c | 3445 | #ifndef OPENSSL_NO_EC |
0f113f3e | 3446 | if (have_ecc_cert) { |
a8d8e06b | 3447 | uint32_t ex_kusage; |
4020c0b3 | 3448 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 3449 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 3450 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 3451 | ecdsa_ok = 0; |
c7c46256 | 3452 | if (ecdsa_ok) |
0f113f3e | 3453 | mask_a |= SSL_aECDSA; |
0f113f3e | 3454 | } |
b2021556 DSH |
3455 | /* Allow Ed25519 for TLS 1.2 if peer supports it */ |
3456 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519) | |
3457 | && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN | |
3458 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3459 | mask_a |= SSL_aECDSA; | |
0e1d6ecf MC |
3460 | |
3461 | /* Allow Ed448 for TLS 1.2 if peer supports it */ | |
3462 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448) | |
3463 | && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN | |
3464 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3465 | mask_a |= SSL_aECDSA; | |
14536c8c | 3466 | #endif |
ea262260 | 3467 | |
10bf4fc2 | 3468 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 3469 | mask_k |= SSL_kECDHE; |
ea262260 | 3470 | #endif |
ddac1974 NL |
3471 | |
3472 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3473 | mask_k |= SSL_kPSK; |
3474 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3475 | if (mask_k & SSL_kRSA) |
3476 | mask_k |= SSL_kRSAPSK; | |
3477 | if (mask_k & SSL_kDHE) | |
3478 | mask_k |= SSL_kDHEPSK; | |
3479 | if (mask_k & SSL_kECDHE) | |
3480 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3481 | #endif |
3482 | ||
555cbb32 TS |
3483 | s->s3.tmp.mask_k = mask_k; |
3484 | s->s3.tmp.mask_a = mask_a; | |
0f113f3e | 3485 | } |
d02b48c6 | 3486 | |
ef236ec3 DSH |
3487 | #ifndef OPENSSL_NO_EC |
3488 | ||
a2f9200f | 3489 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3490 | { |
555cbb32 | 3491 | if (s->s3.tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3492 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3493 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3494 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3495 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3496 | return 0; | |
3497 | } | |
3498 | } | |
0f113f3e MC |
3499 | return 1; /* all checks are ok */ |
3500 | } | |
ea262260 | 3501 | |
ef236ec3 DSH |
3502 | #endif |
3503 | ||
a398f821 | 3504 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3505 | size_t *serverinfo_length) |
3506 | { | |
555cbb32 | 3507 | CERT_PKEY *cpk = s->s3.tmp.cert; |
0f113f3e MC |
3508 | *serverinfo_length = 0; |
3509 | ||
a497cf25 | 3510 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3511 | return 0; |
3512 | ||
a497cf25 DSH |
3513 | *serverinfo = cpk->serverinfo; |
3514 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3515 | return 1; |
3516 | } | |
0f113f3e MC |
3517 | |
3518 | void ssl_update_cache(SSL *s, int mode) | |
3519 | { | |
3520 | int i; | |
3521 | ||
3522 | /* | |
3523 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3524 | * would be rather hard to do anyway :-) | |
3525 | */ | |
3526 | if (s->session->session_id_length == 0) | |
3527 | return; | |
3528 | ||
d316cdcf BK |
3529 | /* |
3530 | * If sid_ctx_length is 0 there is no specific application context | |
3531 | * associated with this session, so when we try to resume it and | |
c4fa1f7f BK |
3532 | * SSL_VERIFY_PEER is requested to verify the client identity, we have no |
3533 | * indication that this is actually a session for the proper application | |
3534 | * context, and the *handshake* will fail, not just the resumption attempt. | |
3535 | * Do not cache (on the server) these sessions that are not resumable | |
3536 | * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set). | |
d316cdcf | 3537 | */ |
c4fa1f7f | 3538 | if (s->server && s->session->sid_ctx_length == 0 |
d316cdcf BK |
3539 | && (s->verify_mode & SSL_VERIFY_PEER) != 0) |
3540 | return; | |
3541 | ||
0f113f3e | 3542 | i = s->session_ctx->session_cache_mode; |
5d61491c | 3543 | if ((i & mode) != 0 |
ee94ec2e MC |
3544 | && (!s->hit || SSL_IS_TLS13(s))) { |
3545 | /* | |
3546 | * Add the session to the internal cache. In server side TLSv1.3 we | |
6cc0b3c2 MC |
3547 | * normally don't do this because by default it's a full stateless ticket |
3548 | * with only a dummy session id so there is no reason to cache it, | |
3549 | * unless: | |
ee94ec2e MC |
3550 | * - we are doing early_data, in which case we cache so that we can |
3551 | * detect replays | |
3552 | * - the application has set a remove_session_cb so needs to know about | |
3553 | * session timeout events | |
6cc0b3c2 | 3554 | * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket |
ee94ec2e MC |
3555 | */ |
3556 | if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0 | |
3557 | && (!SSL_IS_TLS13(s) | |
3558 | || !s->server | |
5d263fb7 MC |
3559 | || (s->max_early_data > 0 |
3560 | && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0) | |
6cc0b3c2 MC |
3561 | || s->session_ctx->remove_session_cb != NULL |
3562 | || (s->options & SSL_OP_NO_TICKET) != 0)) | |
ee94ec2e MC |
3563 | SSL_CTX_add_session(s->session_ctx, s->session); |
3564 | ||
3565 | /* | |
3566 | * Add the session to the external cache. We do this even in server side | |
3567 | * TLSv1.3 without early data because some applications just want to | |
3568 | * know about the creation of a session and aren't doing a full cache. | |
3569 | */ | |
3570 | if (s->session_ctx->new_session_cb != NULL) { | |
3571 | SSL_SESSION_up_ref(s->session); | |
3572 | if (!s->session_ctx->new_session_cb(s, s->session)) | |
3573 | SSL_SESSION_free(s->session); | |
3574 | } | |
0f113f3e MC |
3575 | } |
3576 | ||
3577 | /* auto flush every 255 connections */ | |
3578 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
9ef9088c | 3579 | TSAN_QUALIFIER int *stat; |
1fcb4e4d BK |
3580 | if (mode & SSL_SESS_CACHE_CLIENT) |
3581 | stat = &s->session_ctx->stats.sess_connect_good; | |
3582 | else | |
3583 | stat = &s->session_ctx->stats.sess_accept_good; | |
9ef9088c | 3584 | if ((tsan_load(stat) & 0xff) == 0xff) |
0f113f3e | 3585 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); |
0f113f3e MC |
3586 | } |
3587 | } | |
d02b48c6 | 3588 | |
3499327b | 3589 | const SSL_METHOD *SSL_CTX_get_ssl_method(const SSL_CTX *ctx) |
0f113f3e MC |
3590 | { |
3591 | return ctx->method; | |
3592 | } | |
ba168244 | 3593 | |
3499327b | 3594 | const SSL_METHOD *SSL_get_ssl_method(const SSL *s) |
0f113f3e | 3595 | { |
26a7d938 | 3596 | return s->method; |
0f113f3e | 3597 | } |
d02b48c6 | 3598 | |
4ebb342f | 3599 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3600 | { |
0f113f3e MC |
3601 | int ret = 1; |
3602 | ||
3603 | if (s->method != meth) { | |
919ba009 | 3604 | const SSL_METHOD *sm = s->method; |
a230b26e | 3605 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3606 | |
919ba009 | 3607 | if (sm->version == meth->version) |
0f113f3e MC |
3608 | s->method = meth; |
3609 | else { | |
919ba009 | 3610 | sm->ssl_free(s); |
0f113f3e MC |
3611 | s->method = meth; |
3612 | ret = s->method->ssl_new(s); | |
3613 | } | |
3614 | ||
919ba009 | 3615 | if (hf == sm->ssl_connect) |
0f113f3e | 3616 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3617 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3618 | s->handshake_func = meth->ssl_accept; |
3619 | } | |
26a7d938 | 3620 | return ret; |
0f113f3e MC |
3621 | } |
3622 | ||
3623 | int SSL_get_error(const SSL *s, int i) | |
3624 | { | |
3625 | int reason; | |
3626 | unsigned long l; | |
3627 | BIO *bio; | |
3628 | ||
3629 | if (i > 0) | |
26a7d938 | 3630 | return SSL_ERROR_NONE; |
0f113f3e MC |
3631 | |
3632 | /* | |
3633 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3634 | * where we do encode the error | |
3635 | */ | |
3636 | if ((l = ERR_peek_error()) != 0) { | |
3637 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
26a7d938 | 3638 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3639 | else |
26a7d938 | 3640 | return SSL_ERROR_SSL; |
0f113f3e MC |
3641 | } |
3642 | ||
8051ab2b MC |
3643 | if (SSL_want_read(s)) { |
3644 | bio = SSL_get_rbio(s); | |
3645 | if (BIO_should_read(bio)) | |
26a7d938 | 3646 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3647 | else if (BIO_should_write(bio)) |
3648 | /* | |
3649 | * This one doesn't make too much sense ... We never try to write | |
3650 | * to the rbio, and an application program where rbio and wbio | |
3651 | * are separate couldn't even know what it should wait for. | |
3652 | * However if we ever set s->rwstate incorrectly (so that we have | |
3653 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3654 | * wbio *are* the same, this test works around that bug; so it | |
3655 | * might be safer to keep it. | |
3656 | */ | |
26a7d938 | 3657 | return SSL_ERROR_WANT_WRITE; |
8051ab2b MC |
3658 | else if (BIO_should_io_special(bio)) { |
3659 | reason = BIO_get_retry_reason(bio); | |
3660 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3661 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3662 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3663 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3664 | else |
26a7d938 | 3665 | return SSL_ERROR_SYSCALL; /* unknown */ |
0f113f3e | 3666 | } |
8051ab2b | 3667 | } |
0f113f3e | 3668 | |
8051ab2b | 3669 | if (SSL_want_write(s)) { |
69687aa8 | 3670 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3671 | bio = s->wbio; |
3672 | if (BIO_should_write(bio)) | |
26a7d938 | 3673 | return SSL_ERROR_WANT_WRITE; |
8051ab2b | 3674 | else if (BIO_should_read(bio)) |
2e7dc7cd | 3675 | /* |
8051ab2b | 3676 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3677 | */ |
26a7d938 | 3678 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3679 | else if (BIO_should_io_special(bio)) { |
3680 | reason = BIO_get_retry_reason(bio); | |
3681 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3682 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3683 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3684 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3685 | else |
26a7d938 | 3686 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3687 | } |
07bbc92c | 3688 | } |
6b1bb98f | 3689 | if (SSL_want_x509_lookup(s)) |
26a7d938 | 3690 | return SSL_ERROR_WANT_X509_LOOKUP; |
6b1bb98f | 3691 | if (SSL_want_async(s)) |
8051ab2b | 3692 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3693 | if (SSL_want_async_job(s)) |
8051ab2b | 3694 | return SSL_ERROR_WANT_ASYNC_JOB; |
a9c0d8be DB |
3695 | if (SSL_want_client_hello_cb(s)) |
3696 | return SSL_ERROR_WANT_CLIENT_HELLO_CB; | |
8051ab2b MC |
3697 | |
3698 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
555cbb32 | 3699 | (s->s3.warn_alert == SSL_AD_CLOSE_NOTIFY)) |
26a7d938 | 3700 | return SSL_ERROR_ZERO_RETURN; |
8051ab2b | 3701 | |
26a7d938 | 3702 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3703 | } |
d02b48c6 | 3704 | |
add2f5ca MC |
3705 | static int ssl_do_handshake_intern(void *vargs) |
3706 | { | |
3707 | struct ssl_async_args *args; | |
3708 | SSL *s; | |
3709 | ||
3710 | args = (struct ssl_async_args *)vargs; | |
3711 | s = args->s; | |
3712 | ||
3713 | return s->handshake_func(s); | |
3714 | } | |
3715 | ||
4f43d0e7 | 3716 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3717 | { |
3718 | int ret = 1; | |
3719 | ||
3720 | if (s->handshake_func == NULL) { | |
3721 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3722 | return -1; |
0f113f3e MC |
3723 | } |
3724 | ||
3eaa4170 | 3725 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3726 | |
c7f47786 | 3727 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3728 | |
3729 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3730 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3731 | struct ssl_async_args args; |
3732 | ||
3733 | args.s = s; | |
3734 | ||
7fecbf6f | 3735 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3736 | } else { |
3737 | ret = s->handshake_func(s); | |
3738 | } | |
0f113f3e | 3739 | } |
add2f5ca | 3740 | return ret; |
0f113f3e MC |
3741 | } |
3742 | ||
4f43d0e7 | 3743 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3744 | { |
3745 | s->server = 1; | |
3746 | s->shutdown = 0; | |
fe3a3291 | 3747 | ossl_statem_clear(s); |
0f113f3e | 3748 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3749 | clear_ciphers(s); |
0f113f3e | 3750 | } |
d02b48c6 | 3751 | |
4f43d0e7 | 3752 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3753 | { |
3754 | s->server = 0; | |
3755 | s->shutdown = 0; | |
fe3a3291 | 3756 | ossl_statem_clear(s); |
0f113f3e | 3757 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3758 | clear_ciphers(s); |
0f113f3e | 3759 | } |
d02b48c6 | 3760 | |
4f43d0e7 | 3761 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3762 | { |
3763 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3764 | return 0; |
0f113f3e | 3765 | } |
d02b48c6 | 3766 | |
41a15c4f | 3767 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3768 | { |
3769 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3770 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3771 | return 0; |
0f113f3e | 3772 | } |
41a15c4f | 3773 | |
0821bcd4 | 3774 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3775 | { |
26a7d938 | 3776 | return 0; |
0f113f3e | 3777 | } |
0821bcd4 | 3778 | |
2b8fa1d5 | 3779 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3780 | { |
3781 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3782 | return NULL; |
0f113f3e | 3783 | } |
d02b48c6 | 3784 | |
3eb2aff4 | 3785 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3786 | { |
2abacef1 MC |
3787 | switch(version) |
3788 | { | |
3789 | case TLS1_3_VERSION: | |
582a17d6 | 3790 | return "TLSv1.3"; |
2abacef1 MC |
3791 | |
3792 | case TLS1_2_VERSION: | |
7d650072 | 3793 | return "TLSv1.2"; |
2abacef1 MC |
3794 | |
3795 | case TLS1_1_VERSION: | |
7d650072 | 3796 | return "TLSv1.1"; |
2abacef1 MC |
3797 | |
3798 | case TLS1_VERSION: | |
ee3a6c64 | 3799 | return "TLSv1"; |
2abacef1 MC |
3800 | |
3801 | case SSL3_VERSION: | |
7d650072 | 3802 | return "SSLv3"; |
2abacef1 MC |
3803 | |
3804 | case DTLS1_BAD_VER: | |
7d650072 | 3805 | return "DTLSv0.9"; |
2abacef1 MC |
3806 | |
3807 | case DTLS1_VERSION: | |
7d650072 | 3808 | return "DTLSv1"; |
2abacef1 MC |
3809 | |
3810 | case DTLS1_2_VERSION: | |
7d650072 | 3811 | return "DTLSv1.2"; |
2abacef1 MC |
3812 | |
3813 | default: | |
3814 | return "unknown"; | |
3815 | } | |
0f113f3e | 3816 | } |
d02b48c6 | 3817 | |
7d650072 KR |
3818 | const char *SSL_get_version(const SSL *s) |
3819 | { | |
3eb2aff4 | 3820 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3821 | } |
3822 | ||
98732979 | 3823 | static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src) |
0f113f3e MC |
3824 | { |
3825 | STACK_OF(X509_NAME) *sk; | |
3826 | X509_NAME *xn; | |
98732979 MC |
3827 | int i; |
3828 | ||
3829 | if (src == NULL) { | |
3830 | *dst = NULL; | |
3831 | return 1; | |
3832 | } | |
3833 | ||
3834 | if ((sk = sk_X509_NAME_new_null()) == NULL) | |
3835 | return 0; | |
3836 | for (i = 0; i < sk_X509_NAME_num(src); i++) { | |
3837 | xn = X509_NAME_dup(sk_X509_NAME_value(src, i)); | |
3838 | if (xn == NULL) { | |
3839 | sk_X509_NAME_pop_free(sk, X509_NAME_free); | |
3840 | return 0; | |
3841 | } | |
3842 | if (sk_X509_NAME_insert(sk, xn, i) == 0) { | |
3843 | X509_NAME_free(xn); | |
3844 | sk_X509_NAME_pop_free(sk, X509_NAME_free); | |
3845 | return 0; | |
3846 | } | |
3847 | } | |
3848 | *dst = sk; | |
3849 | ||
3850 | return 1; | |
3851 | } | |
3852 | ||
3853 | SSL *SSL_dup(SSL *s) | |
3854 | { | |
0f113f3e MC |
3855 | SSL *ret; |
3856 | int i; | |
3857 | ||
919ba009 VD |
3858 | /* If we're not quiescent, just up_ref! */ |
3859 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3860 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3861 | return s; |
3862 | } | |
3863 | ||
3864 | /* | |
3865 | * Otherwise, copy configuration state, and session if set. | |
3866 | */ | |
0f113f3e | 3867 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
26a7d938 | 3868 | return NULL; |
0f113f3e | 3869 | |
0f113f3e | 3870 | if (s->session != NULL) { |
919ba009 VD |
3871 | /* |
3872 | * Arranges to share the same session via up_ref. This "copies" | |
3873 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3874 | */ | |
61986d32 | 3875 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3876 | goto err; |
0f113f3e MC |
3877 | } else { |
3878 | /* | |
3879 | * No session has been established yet, so we have to expect that | |
3880 | * s->cert or ret->cert will be changed later -- they should not both | |
3881 | * point to the same object, and thus we can't use | |
3882 | * SSL_copy_session_id. | |
3883 | */ | |
919ba009 VD |
3884 | if (!SSL_set_ssl_method(ret, s->method)) |
3885 | goto err; | |
0f113f3e MC |
3886 | |
3887 | if (s->cert != NULL) { | |
e0e920b1 | 3888 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3889 | ret->cert = ssl_cert_dup(s->cert); |
3890 | if (ret->cert == NULL) | |
3891 | goto err; | |
3892 | } | |
3893 | ||
348240c6 MC |
3894 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3895 | (int)s->sid_ctx_length)) | |
69f68237 | 3896 | goto err; |
0f113f3e MC |
3897 | } |
3898 | ||
9f6b22b8 VD |
3899 | if (!ssl_dane_dup(ret, s)) |
3900 | goto err; | |
919ba009 | 3901 | ret->version = s->version; |
0f113f3e MC |
3902 | ret->options = s->options; |
3903 | ret->mode = s->mode; | |
3904 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3905 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3906 | ret->msg_callback = s->msg_callback; | |
3907 | ret->msg_callback_arg = s->msg_callback_arg; | |
3908 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3909 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3910 | ret->generate_session_id = s->generate_session_id; | |
3911 | ||
3912 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3913 | ||
0f113f3e MC |
3914 | /* copy app data, a little dangerous perhaps */ |
3915 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3916 | goto err; | |
3917 | ||
3918 | /* setup rbio, and wbio */ | |
3919 | if (s->rbio != NULL) { | |
3920 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3921 | goto err; | |
3922 | } | |
3923 | if (s->wbio != NULL) { | |
3924 | if (s->wbio != s->rbio) { | |
3925 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3926 | goto err; | |
65e2d672 MC |
3927 | } else { |
3928 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3929 | ret->wbio = ret->rbio; |
65e2d672 | 3930 | } |
0f113f3e | 3931 | } |
919ba009 | 3932 | |
0f113f3e | 3933 | ret->server = s->server; |
919ba009 VD |
3934 | if (s->handshake_func) { |
3935 | if (s->server) | |
3936 | SSL_set_accept_state(ret); | |
3937 | else | |
3938 | SSL_set_connect_state(ret); | |
3939 | } | |
0f113f3e | 3940 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3941 | ret->hit = s->hit; |
3942 | ||
a974e64a MC |
3943 | ret->default_passwd_callback = s->default_passwd_callback; |
3944 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3945 | ||
0f113f3e MC |
3946 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3947 | ||
3948 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3949 | if (s->cipher_list != NULL) { | |
3950 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3951 | goto err; | |
3952 | } | |
3953 | if (s->cipher_list_by_id != NULL) | |
3954 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3955 | == NULL) | |
3956 | goto err; | |
3957 | ||
3958 | /* Dup the client_CA list */ | |
98732979 MC |
3959 | if (!dup_ca_names(&ret->ca_names, s->ca_names) |
3960 | || !dup_ca_names(&ret->client_ca_names, s->client_ca_names)) | |
3961 | goto err; | |
3962 | ||
66696478 | 3963 | return ret; |
0f113f3e | 3964 | |
0f113f3e | 3965 | err: |
66696478 RS |
3966 | SSL_free(ret); |
3967 | return NULL; | |
0f113f3e | 3968 | } |
d02b48c6 | 3969 | |
4f43d0e7 | 3970 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3971 | { |
3972 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3973 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3974 | s->enc_read_ctx = NULL; |
3975 | } | |
3976 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3977 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3978 | s->enc_write_ctx = NULL; |
3979 | } | |
09b6c2ef | 3980 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3981 | COMP_CTX_free(s->expand); |
3982 | s->expand = NULL; | |
3983 | COMP_CTX_free(s->compress); | |
3984 | s->compress = NULL; | |
0f113f3e MC |
3985 | #endif |
3986 | } | |
d02b48c6 | 3987 | |
0821bcd4 | 3988 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3989 | { |
3990 | if (s->cert != NULL) | |
26a7d938 | 3991 | return s->cert->key->x509; |
0f113f3e | 3992 | else |
26a7d938 | 3993 | return NULL; |
0f113f3e | 3994 | } |
d02b48c6 | 3995 | |
a25f9adc | 3996 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3997 | { |
3998 | if (s->cert != NULL) | |
26a7d938 | 3999 | return s->cert->key->privatekey; |
0f113f3e | 4000 | else |
26a7d938 | 4001 | return NULL; |
0f113f3e | 4002 | } |
d02b48c6 | 4003 | |
a25f9adc | 4004 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
4005 | { |
4006 | if (ctx->cert != NULL) | |
4007 | return ctx->cert->key->x509; | |
4008 | else | |
4009 | return NULL; | |
4010 | } | |
a25f9adc DSH |
4011 | |
4012 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
4013 | { |
4014 | if (ctx->cert != NULL) | |
4015 | return ctx->cert->key->privatekey; | |
4016 | else | |
4017 | return NULL; | |
4018 | } | |
a25f9adc | 4019 | |
babb3798 | 4020 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
4021 | { |
4022 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
26a7d938 K |
4023 | return s->session->cipher; |
4024 | return NULL; | |
0f113f3e MC |
4025 | } |
4026 | ||
0aed6e44 BK |
4027 | const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s) |
4028 | { | |
555cbb32 | 4029 | return s->s3.tmp.new_cipher; |
0aed6e44 BK |
4030 | } |
4031 | ||
3499327b | 4032 | const COMP_METHOD *SSL_get_current_compression(const SSL *s) |
0f113f3e | 4033 | { |
9a555706 RS |
4034 | #ifndef OPENSSL_NO_COMP |
4035 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
4036 | #else | |
4037 | return NULL; | |
4038 | #endif | |
0f113f3e | 4039 | } |
377dcdba | 4040 | |
3499327b | 4041 | const COMP_METHOD *SSL_get_current_expansion(const SSL *s) |
0f113f3e | 4042 | { |
9a555706 RS |
4043 | #ifndef OPENSSL_NO_COMP |
4044 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
4045 | #else | |
4046 | return NULL; | |
0f113f3e | 4047 | #endif |
9a555706 | 4048 | } |
0f113f3e | 4049 | |
46417569 | 4050 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
4051 | { |
4052 | BIO *bbio; | |
4053 | ||
2e7dc7cd MC |
4054 | if (s->bbio != NULL) { |
4055 | /* Already buffered. */ | |
4056 | return 1; | |
0f113f3e | 4057 | } |
46417569 | 4058 | |
2e7dc7cd MC |
4059 | bbio = BIO_new(BIO_f_buffer()); |
4060 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
4061 | BIO_free(bbio); | |
0f113f3e | 4062 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 4063 | return 0; |
0f113f3e | 4064 | } |
2e7dc7cd MC |
4065 | s->bbio = bbio; |
4066 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
4067 | |
4068 | return 1; | |
0f113f3e | 4069 | } |
413c4f45 | 4070 | |
b77f3ed1 | 4071 | int ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 4072 | { |
62adbcee | 4073 | /* callers ensure s is never null */ |
0f113f3e | 4074 | if (s->bbio == NULL) |
b77f3ed1 | 4075 | return 1; |
0f113f3e | 4076 | |
2e7dc7cd | 4077 | s->wbio = BIO_pop(s->wbio); |
0f113f3e MC |
4078 | BIO_free(s->bbio); |
4079 | s->bbio = NULL; | |
b77f3ed1 MC |
4080 | |
4081 | return 1; | |
0f113f3e MC |
4082 | } |
4083 | ||
4084 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
4085 | { | |
4086 | ctx->quiet_shutdown = mode; | |
4087 | } | |
58964a49 | 4088 | |
0821bcd4 | 4089 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e | 4090 | { |
26a7d938 | 4091 | return ctx->quiet_shutdown; |
0f113f3e | 4092 | } |
58964a49 | 4093 | |
0f113f3e MC |
4094 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
4095 | { | |
4096 | s->quiet_shutdown = mode; | |
4097 | } | |
58964a49 | 4098 | |
0821bcd4 | 4099 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e | 4100 | { |
26a7d938 | 4101 | return s->quiet_shutdown; |
0f113f3e | 4102 | } |
58964a49 | 4103 | |
0f113f3e MC |
4104 | void SSL_set_shutdown(SSL *s, int mode) |
4105 | { | |
4106 | s->shutdown = mode; | |
4107 | } | |
58964a49 | 4108 | |
0821bcd4 | 4109 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 4110 | { |
6546e9b2 | 4111 | return s->shutdown; |
0f113f3e | 4112 | } |
58964a49 | 4113 | |
0821bcd4 | 4114 | int SSL_version(const SSL *s) |
0f113f3e | 4115 | { |
6546e9b2 AG |
4116 | return s->version; |
4117 | } | |
4118 | ||
4119 | int SSL_client_version(const SSL *s) | |
4120 | { | |
4121 | return s->client_version; | |
0f113f3e | 4122 | } |
58964a49 | 4123 | |
0821bcd4 | 4124 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 4125 | { |
6546e9b2 | 4126 | return ssl->ctx; |
0f113f3e MC |
4127 | } |
4128 | ||
4129 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
4130 | { | |
24a0d393 | 4131 | CERT *new_cert; |
0f113f3e MC |
4132 | if (ssl->ctx == ctx) |
4133 | return ssl->ctx; | |
0f113f3e | 4134 | if (ctx == NULL) |
222da979 | 4135 | ctx = ssl->session_ctx; |
24a0d393 KR |
4136 | new_cert = ssl_cert_dup(ctx->cert); |
4137 | if (new_cert == NULL) { | |
4138 | return NULL; | |
0f113f3e | 4139 | } |
21181889 MC |
4140 | |
4141 | if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) { | |
4142 | ssl_cert_free(new_cert); | |
4143 | return NULL; | |
4144 | } | |
4145 | ||
24a0d393 KR |
4146 | ssl_cert_free(ssl->cert); |
4147 | ssl->cert = new_cert; | |
0f113f3e MC |
4148 | |
4149 | /* | |
4150 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
4151 | * so setter APIs must prevent invalid lengths from entering the system. | |
4152 | */ | |
380a522f MC |
4153 | if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx))) |
4154 | return NULL; | |
0f113f3e MC |
4155 | |
4156 | /* | |
4157 | * If the session ID context matches that of the parent SSL_CTX, | |
4158 | * inherit it from the new SSL_CTX as well. If however the context does | |
4159 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
4160 | * leave it unchanged. | |
4161 | */ | |
4162 | if ((ssl->ctx != NULL) && | |
4163 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
4164 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
4165 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
4166 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
4167 | } | |
4168 | ||
16203f7b | 4169 | SSL_CTX_up_ref(ctx); |
a230b26e | 4170 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
4171 | ssl->ctx = ctx; |
4172 | ||
16203f7b | 4173 | return ssl->ctx; |
0f113f3e | 4174 | } |
ed3883d2 | 4175 | |
4f43d0e7 | 4176 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e | 4177 | { |
26a7d938 | 4178 | return X509_STORE_set_default_paths(ctx->cert_store); |
0f113f3e | 4179 | } |
58964a49 | 4180 | |
d84a7b20 MC |
4181 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
4182 | { | |
4183 | X509_LOOKUP *lookup; | |
4184 | ||
4185 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
4186 | if (lookup == NULL) | |
4187 | return 0; | |
4188 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
4189 | ||
4190 | /* Clear any errors if the default directory does not exist */ | |
4191 | ERR_clear_error(); | |
4192 | ||
4193 | return 1; | |
4194 | } | |
4195 | ||
4196 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
4197 | { | |
4198 | X509_LOOKUP *lookup; | |
4199 | ||
4200 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
4201 | if (lookup == NULL) | |
4202 | return 0; | |
4203 | ||
4204 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
4205 | ||
4206 | /* Clear any errors if the default file does not exist */ | |
4207 | ERR_clear_error(); | |
4208 | ||
4209 | return 1; | |
4210 | } | |
4211 | ||
303c0028 | 4212 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
4213 | const char *CApath) |
4214 | { | |
26a7d938 | 4215 | return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath); |
0f113f3e | 4216 | } |
58964a49 | 4217 | |
45d87a1f | 4218 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
4219 | void (*cb) (const SSL *ssl, int type, int val)) |
4220 | { | |
4221 | ssl->info_callback = cb; | |
4222 | } | |
4223 | ||
4224 | /* | |
4225 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
4226 | * pointer. | |
4227 | */ | |
4228 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
4229 | int /* type */ , | |
4230 | int /* val */ ) { | |
4231 | return ssl->info_callback; | |
4232 | } | |
58964a49 | 4233 | |
0f113f3e MC |
4234 | void SSL_set_verify_result(SSL *ssl, long arg) |
4235 | { | |
4236 | ssl->verify_result = arg; | |
4237 | } | |
58964a49 | 4238 | |
0821bcd4 | 4239 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e | 4240 | { |
26a7d938 | 4241 | return ssl->verify_result; |
0f113f3e MC |
4242 | } |
4243 | ||
d9f1c639 | 4244 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 4245 | { |
6b8f5d0d | 4246 | if (outlen == 0) |
555cbb32 TS |
4247 | return sizeof(ssl->s3.client_random); |
4248 | if (outlen > sizeof(ssl->s3.client_random)) | |
4249 | outlen = sizeof(ssl->s3.client_random); | |
4250 | memcpy(out, ssl->s3.client_random, outlen); | |
d9f1c639 | 4251 | return outlen; |
858618e7 NM |
4252 | } |
4253 | ||
d9f1c639 | 4254 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 4255 | { |
6b8f5d0d | 4256 | if (outlen == 0) |
555cbb32 TS |
4257 | return sizeof(ssl->s3.server_random); |
4258 | if (outlen > sizeof(ssl->s3.server_random)) | |
4259 | outlen = sizeof(ssl->s3.server_random); | |
4260 | memcpy(out, ssl->s3.server_random, outlen); | |
d9f1c639 | 4261 | return outlen; |
858618e7 NM |
4262 | } |
4263 | ||
d9f1c639 | 4264 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 4265 | unsigned char *out, size_t outlen) |
858618e7 | 4266 | { |
d9f1c639 MC |
4267 | if (outlen == 0) |
4268 | return session->master_key_length; | |
8c1a5343 | 4269 | if (outlen > session->master_key_length) |
858618e7 NM |
4270 | outlen = session->master_key_length; |
4271 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 4272 | return outlen; |
858618e7 NM |
4273 | } |
4274 | ||
725b0f1e | 4275 | int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in, |
911d63f2 MC |
4276 | size_t len) |
4277 | { | |
4278 | if (len > sizeof(sess->master_key)) | |
4279 | return 0; | |
4280 | ||
4281 | memcpy(sess->master_key, in, len); | |
4282 | sess->master_key_length = len; | |
911d63f2 MC |
4283 | return 1; |
4284 | } | |
4285 | ||
4286 | ||
0f113f3e MC |
4287 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
4288 | { | |
26a7d938 | 4289 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
4290 | } |
4291 | ||
4292 | void *SSL_get_ex_data(const SSL *s, int idx) | |
4293 | { | |
26a7d938 | 4294 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e MC |
4295 | } |
4296 | ||
0f113f3e MC |
4297 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
4298 | { | |
26a7d938 | 4299 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
4300 | } |
4301 | ||
4302 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
4303 | { | |
26a7d938 | 4304 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e | 4305 | } |
58964a49 | 4306 | |
0821bcd4 | 4307 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e | 4308 | { |
26a7d938 | 4309 | return ctx->cert_store; |
0f113f3e | 4310 | } |
413c4f45 | 4311 | |
0f113f3e MC |
4312 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
4313 | { | |
222561fe | 4314 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
4315 | ctx->cert_store = store; |
4316 | } | |
413c4f45 | 4317 | |
b50052db TS |
4318 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
4319 | { | |
4320 | if (store != NULL) | |
4321 | X509_STORE_up_ref(store); | |
4322 | SSL_CTX_set_cert_store(ctx, store); | |
4323 | } | |
4324 | ||
0821bcd4 | 4325 | int SSL_want(const SSL *s) |
0f113f3e | 4326 | { |
26a7d938 | 4327 | return s->rwstate; |
0f113f3e | 4328 | } |
413c4f45 | 4329 | |
0f113f3e | 4330 | /** |
4f43d0e7 BL |
4331 | * \brief Set the callback for generating temporary DH keys. |
4332 | * \param ctx the SSL context. | |
4333 | * \param dh the callback | |
4334 | */ | |
4335 | ||
bc36ee62 | 4336 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
4337 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
4338 | DH *(*dh) (SSL *ssl, int is_export, | |
4339 | int keylength)) | |
4340 | { | |
4341 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
4342 | } | |
f8c3c05d | 4343 | |
0f113f3e MC |
4344 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
4345 | int keylength)) | |
4346 | { | |
4347 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
4348 | } | |
79df9d62 | 4349 | #endif |
15d21c2d | 4350 | |
ddac1974 NL |
4351 | #ifndef OPENSSL_NO_PSK |
4352 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
4353 | { |
4354 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 4355 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
4356 | return 0; |
4357 | } | |
df6da24b | 4358 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 4359 | if (identity_hint != NULL) { |
7644a9ae | 4360 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 4361 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
4362 | return 0; |
4363 | } else | |
df6da24b | 4364 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
4365 | return 1; |
4366 | } | |
ddac1974 NL |
4367 | |
4368 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
4369 | { |
4370 | if (s == NULL) | |
4371 | return 0; | |
4372 | ||
0f113f3e MC |
4373 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
4374 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
4375 | return 0; | |
4376 | } | |
df6da24b | 4377 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 4378 | if (identity_hint != NULL) { |
7644a9ae | 4379 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 4380 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
4381 | return 0; |
4382 | } else | |
df6da24b | 4383 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
4384 | return 1; |
4385 | } | |
ddac1974 NL |
4386 | |
4387 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
4388 | { |
4389 | if (s == NULL || s->session == NULL) | |
4390 | return NULL; | |
26a7d938 | 4391 | return s->session->psk_identity_hint; |
0f113f3e | 4392 | } |
ddac1974 NL |
4393 | |
4394 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
4395 | { |
4396 | if (s == NULL || s->session == NULL) | |
4397 | return NULL; | |
26a7d938 | 4398 | return s->session->psk_identity; |
0f113f3e | 4399 | } |
7806f3dd | 4400 | |
8cbfcc70 | 4401 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4402 | { |
4403 | s->psk_client_callback = cb; | |
4404 | } | |
7806f3dd | 4405 | |
8cbfcc70 | 4406 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4407 | { |
4408 | ctx->psk_client_callback = cb; | |
4409 | } | |
7806f3dd | 4410 | |
8cbfcc70 | 4411 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4412 | { |
4413 | s->psk_server_callback = cb; | |
4414 | } | |
7806f3dd | 4415 | |
8cbfcc70 | 4416 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4417 | { |
4418 | ctx->psk_server_callback = cb; | |
4419 | } | |
4420 | #endif | |
4421 | ||
f46184bd MC |
4422 | void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb) |
4423 | { | |
4424 | s->psk_find_session_cb = cb; | |
4425 | } | |
4426 | ||
4427 | void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx, | |
4428 | SSL_psk_find_session_cb_func cb) | |
4429 | { | |
4430 | ctx->psk_find_session_cb = cb; | |
4431 | } | |
4432 | ||
4433 | void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) | |
4434 | { | |
4435 | s->psk_use_session_cb = cb; | |
4436 | } | |
4437 | ||
4438 | void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx, | |
4439 | SSL_psk_use_session_cb_func cb) | |
4440 | { | |
4441 | ctx->psk_use_session_cb = cb; | |
4442 | } | |
4443 | ||
0f113f3e MC |
4444 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, |
4445 | void (*cb) (int write_p, int version, | |
4446 | int content_type, const void *buf, | |
4447 | size_t len, SSL *ssl, void *arg)) | |
4448 | { | |
4449 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4450 | } | |
4451 | ||
4452 | void SSL_set_msg_callback(SSL *ssl, | |
4453 | void (*cb) (int write_p, int version, | |
4454 | int content_type, const void *buf, | |
4455 | size_t len, SSL *ssl, void *arg)) | |
4456 | { | |
4457 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4458 | } | |
a661b653 | 4459 | |
7c2d4fee | 4460 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
4461 | int (*cb) (SSL *ssl, |
4462 | int | |
4463 | is_forward_secure)) | |
4464 | { | |
4465 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4466 | (void (*)(void))cb); | |
4467 | } | |
4468 | ||
7c2d4fee | 4469 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
4470 | int (*cb) (SSL *ssl, |
4471 | int is_forward_secure)) | |
4472 | { | |
4473 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4474 | (void (*)(void))cb); | |
4475 | } | |
4476 | ||
c649d10d TS |
4477 | void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx, |
4478 | size_t (*cb) (SSL *ssl, int type, | |
4479 | size_t len, void *arg)) | |
4480 | { | |
4481 | ctx->record_padding_cb = cb; | |
4482 | } | |
4483 | ||
4484 | void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg) | |
4485 | { | |
4486 | ctx->record_padding_arg = arg; | |
4487 | } | |
4488 | ||
3499327b | 4489 | void *SSL_CTX_get_record_padding_callback_arg(const SSL_CTX *ctx) |
c649d10d TS |
4490 | { |
4491 | return ctx->record_padding_arg; | |
4492 | } | |
4493 | ||
4494 | int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size) | |
4495 | { | |
4496 | /* block size of 0 or 1 is basically no padding */ | |
4497 | if (block_size == 1) | |
4498 | ctx->block_padding = 0; | |
4499 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4500 | ctx->block_padding = block_size; | |
4501 | else | |
4502 | return 0; | |
4503 | return 1; | |
4504 | } | |
4505 | ||
4506 | void SSL_set_record_padding_callback(SSL *ssl, | |
4507 | size_t (*cb) (SSL *ssl, int type, | |
4508 | size_t len, void *arg)) | |
4509 | { | |
4510 | ssl->record_padding_cb = cb; | |
4511 | } | |
4512 | ||
4513 | void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg) | |
4514 | { | |
4515 | ssl->record_padding_arg = arg; | |
4516 | } | |
4517 | ||
3499327b | 4518 | void *SSL_get_record_padding_callback_arg(const SSL *ssl) |
c649d10d TS |
4519 | { |
4520 | return ssl->record_padding_arg; | |
4521 | } | |
4522 | ||
4523 | int SSL_set_block_padding(SSL *ssl, size_t block_size) | |
4524 | { | |
4525 | /* block size of 0 or 1 is basically no padding */ | |
4526 | if (block_size == 1) | |
4527 | ssl->block_padding = 0; | |
4528 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4529 | ssl->block_padding = block_size; | |
4530 | else | |
4531 | return 0; | |
4532 | return 1; | |
4533 | } | |
4534 | ||
9d0a8bb7 MC |
4535 | int SSL_set_num_tickets(SSL *s, size_t num_tickets) |
4536 | { | |
4537 | s->num_tickets = num_tickets; | |
4538 | ||
4539 | return 1; | |
4540 | } | |
4541 | ||
3499327b | 4542 | size_t SSL_get_num_tickets(const SSL *s) |
9d0a8bb7 MC |
4543 | { |
4544 | return s->num_tickets; | |
4545 | } | |
4546 | ||
4547 | int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) | |
4548 | { | |
4549 | ctx->num_tickets = num_tickets; | |
4550 | ||
4551 | return 1; | |
4552 | } | |
4553 | ||
3499327b | 4554 | size_t SSL_CTX_get_num_tickets(const SSL_CTX *ctx) |
9d0a8bb7 MC |
4555 | { |
4556 | return ctx->num_tickets; | |
4557 | } | |
4558 | ||
0f113f3e MC |
4559 | /* |
4560 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 4561 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 4562 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 4563 | * Returns the newly allocated ctx; |
8671b898 | 4564 | */ |
b948e2c5 | 4565 | |
0f113f3e | 4566 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 4567 | { |
0f113f3e | 4568 | ssl_clear_hash_ctx(hash); |
bfb0641f | 4569 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 4570 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 4571 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
4572 | *hash = NULL; |
4573 | return NULL; | |
4574 | } | |
0f113f3e | 4575 | return *hash; |
b948e2c5 | 4576 | } |
0f113f3e MC |
4577 | |
4578 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
4579 | { |
4580 | ||
0d9824c1 | 4581 | EVP_MD_CTX_free(*hash); |
0f113f3e | 4582 | *hash = NULL; |
b948e2c5 | 4583 | } |
a661b653 | 4584 | |
48fbcbac | 4585 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
4586 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
4587 | size_t *hashlen) | |
48fbcbac | 4588 | { |
6e59a892 | 4589 | EVP_MD_CTX *ctx = NULL; |
555cbb32 | 4590 | EVP_MD_CTX *hdgst = s->s3.handshake_dgst; |
8c1a5343 MC |
4591 | int hashleni = EVP_MD_CTX_size(hdgst); |
4592 | int ret = 0; | |
4593 | ||
f63a17d6 MC |
4594 | if (hashleni < 0 || (size_t)hashleni > outlen) { |
4595 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH, | |
4596 | ERR_R_INTERNAL_ERROR); | |
28ba2541 | 4597 | goto err; |
f63a17d6 | 4598 | } |
8c1a5343 | 4599 | |
bfb0641f | 4600 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 4601 | if (ctx == NULL) |
6e59a892 | 4602 | goto err; |
8c1a5343 | 4603 | |
6e59a892 | 4604 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
f63a17d6 MC |
4605 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) { |
4606 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH, | |
4607 | ERR_R_INTERNAL_ERROR); | |
8c1a5343 | 4608 | goto err; |
f63a17d6 | 4609 | } |
8c1a5343 MC |
4610 | |
4611 | *hashlen = hashleni; | |
4612 | ||
4613 | ret = 1; | |
48fbcbac | 4614 | err: |
bfb0641f | 4615 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
4616 | return ret; |
4617 | } | |
4618 | ||
c04b66b1 | 4619 | int SSL_session_reused(const SSL *s) |
0f113f3e MC |
4620 | { |
4621 | return s->hit; | |
4622 | } | |
08557cf2 | 4623 | |
69443116 | 4624 | int SSL_is_server(const SSL *s) |
0f113f3e MC |
4625 | { |
4626 | return s->server; | |
4627 | } | |
87adf1fa | 4628 | |
fcd2d5a6 | 4629 | #if !OPENSSL_API_1_1_0 |
47153c72 RS |
4630 | void SSL_set_debug(SSL *s, int debug) |
4631 | { | |
4632 | /* Old function was do-nothing anyway... */ | |
4633 | (void)s; | |
4634 | (void)debug; | |
4635 | } | |
4636 | #endif | |
4637 | ||
b362ccab | 4638 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4639 | { |
4640 | s->cert->sec_level = level; | |
4641 | } | |
b362ccab DSH |
4642 | |
4643 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4644 | { |
4645 | return s->cert->sec_level; | |
4646 | } | |
b362ccab | 4647 | |
0f113f3e | 4648 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4649 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4650 | int op, int bits, int nid, | |
4651 | void *other, void *ex)) | |
0f113f3e MC |
4652 | { |
4653 | s->cert->sec_cb = cb; | |
4654 | } | |
b362ccab | 4655 | |
a230b26e EK |
4656 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4657 | const SSL_CTX *ctx, int op, | |
4658 | int bits, int nid, void *other, | |
4659 | void *ex) { | |
0f113f3e MC |
4660 | return s->cert->sec_cb; |
4661 | } | |
b362ccab DSH |
4662 | |
4663 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4664 | { |
4665 | s->cert->sec_ex = ex; | |
4666 | } | |
b362ccab DSH |
4667 | |
4668 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4669 | { |
4670 | return s->cert->sec_ex; | |
4671 | } | |
b362ccab DSH |
4672 | |
4673 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4674 | { |
4675 | ctx->cert->sec_level = level; | |
4676 | } | |
b362ccab DSH |
4677 | |
4678 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4679 | { |
4680 | return ctx->cert->sec_level; | |
4681 | } | |
b362ccab | 4682 | |
0f113f3e | 4683 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4684 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4685 | int op, int bits, int nid, | |
4686 | void *other, void *ex)) | |
0f113f3e MC |
4687 | { |
4688 | ctx->cert->sec_cb = cb; | |
4689 | } | |
b362ccab | 4690 | |
e4646a89 KR |
4691 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4692 | const SSL_CTX *ctx, | |
0f113f3e MC |
4693 | int op, int bits, |
4694 | int nid, | |
4695 | void *other, | |
4696 | void *ex) { | |
4697 | return ctx->cert->sec_cb; | |
4698 | } | |
b362ccab DSH |
4699 | |
4700 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4701 | { |
4702 | ctx->cert->sec_ex = ex; | |
4703 | } | |
b362ccab DSH |
4704 | |
4705 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4706 | { |
4707 | return ctx->cert->sec_ex; | |
4708 | } | |
b362ccab | 4709 | |
8106cb8b VD |
4710 | /* |
4711 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4712 | * can return unsigned long, instead of the generic long return value from the | |
4713 | * control interface. | |
4714 | */ | |
4715 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4716 | { | |
4717 | return ctx->options; | |
4718 | } | |
a230b26e EK |
4719 | |
4720 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4721 | { |
4722 | return s->options; | |
4723 | } | |
a230b26e | 4724 | |
8106cb8b VD |
4725 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4726 | { | |
4727 | return ctx->options |= op; | |
4728 | } | |
a230b26e | 4729 | |
8106cb8b VD |
4730 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4731 | { | |
4732 | return s->options |= op; | |
4733 | } | |
a230b26e | 4734 | |
8106cb8b VD |
4735 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4736 | { | |
4737 | return ctx->options &= ~op; | |
4738 | } | |
a230b26e | 4739 | |
8106cb8b VD |
4740 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4741 | { | |
4742 | return s->options &= ~op; | |
4743 | } | |
4744 | ||
696178ed DSH |
4745 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4746 | { | |
4747 | return s->verified_chain; | |
4748 | } | |
4749 | ||
0f113f3e | 4750 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4751 | |
4752 | #ifndef OPENSSL_NO_CT | |
4753 | ||
4754 | /* | |
4755 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4756 | * The source of each SCT will be set to |origin|. | |
4757 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4758 | * the caller. | |
4759 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4760 | */ | |
a230b26e EK |
4761 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4762 | sct_source_t origin) | |
ed29e82a RP |
4763 | { |
4764 | int scts_moved = 0; | |
4765 | SCT *sct = NULL; | |
4766 | ||
4767 | if (*dst == NULL) { | |
4768 | *dst = sk_SCT_new_null(); | |
4769 | if (*dst == NULL) { | |
4770 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4771 | goto err; | |
4772 | } | |
4773 | } | |
4774 | ||
4775 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4776 | if (SCT_set_source(sct, origin) != 1) | |
4777 | goto err; | |
4778 | ||
4779 | if (sk_SCT_push(*dst, sct) <= 0) | |
4780 | goto err; | |
4781 | scts_moved += 1; | |
4782 | } | |
4783 | ||
4784 | return scts_moved; | |
a230b26e | 4785 | err: |
ed29e82a | 4786 | if (sct != NULL) |
a230b26e | 4787 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4788 | return -1; |
ed29e82a RP |
4789 | } |
4790 | ||
4791 | /* | |
a230b26e | 4792 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4793 | * Returns the number of SCTs extracted. |
a230b26e | 4794 | */ |
ed29e82a RP |
4795 | static int ct_extract_tls_extension_scts(SSL *s) |
4796 | { | |
4797 | int scts_extracted = 0; | |
4798 | ||
aff8c126 RS |
4799 | if (s->ext.scts != NULL) { |
4800 | const unsigned char *p = s->ext.scts; | |
4801 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4802 | |
4803 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4804 | ||
4805 | SCT_LIST_free(scts); | |
4806 | } | |
4807 | ||
4808 | return scts_extracted; | |
4809 | } | |
4810 | ||
4811 | /* | |
4812 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4813 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4814 | * Returns: | |
4815 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4816 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4817 | * - A negative integer if an error occurs. | |
4818 | */ | |
4819 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4820 | { | |
a230b26e | 4821 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4822 | int scts_extracted = 0; |
4823 | const unsigned char *p; | |
4824 | OCSP_BASICRESP *br = NULL; | |
4825 | OCSP_RESPONSE *rsp = NULL; | |
4826 | STACK_OF(SCT) *scts = NULL; | |
4827 | int i; | |
4828 | ||
aff8c126 | 4829 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4830 | goto err; |
4831 | ||
aff8c126 RS |
4832 | p = s->ext.ocsp.resp; |
4833 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4834 | if (rsp == NULL) |
4835 | goto err; | |
4836 | ||
4837 | br = OCSP_response_get1_basic(rsp); | |
4838 | if (br == NULL) | |
4839 | goto err; | |
4840 | ||
4841 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4842 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4843 | ||
4844 | if (single == NULL) | |
4845 | continue; | |
4846 | ||
a230b26e EK |
4847 | scts = |
4848 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4849 | scts_extracted = | |
4850 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4851 | if (scts_extracted < 0) |
4852 | goto err; | |
4853 | } | |
a230b26e | 4854 | err: |
ed29e82a RP |
4855 | SCT_LIST_free(scts); |
4856 | OCSP_BASICRESP_free(br); | |
4857 | OCSP_RESPONSE_free(rsp); | |
4858 | return scts_extracted; | |
a230b26e | 4859 | # else |
3e41ac35 MC |
4860 | /* Behave as if no OCSP response exists */ |
4861 | return 0; | |
a230b26e | 4862 | # endif |
ed29e82a RP |
4863 | } |
4864 | ||
4865 | /* | |
4866 | * Attempts to extract SCTs from the peer certificate. | |
4867 | * Return the number of SCTs extracted, or a negative integer if an error | |
4868 | * occurs. | |
4869 | */ | |
4870 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4871 | { | |
4872 | int scts_extracted = 0; | |
3f3c7d26 | 4873 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4874 | |
4875 | if (cert != NULL) { | |
4876 | STACK_OF(SCT) *scts = | |
4877 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4878 | ||
4879 | scts_extracted = | |
4880 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4881 | ||
4882 | SCT_LIST_free(scts); | |
4883 | } | |
4884 | ||
4885 | return scts_extracted; | |
4886 | } | |
4887 | ||
4888 | /* | |
4889 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4890 | * response (if it exists) and X509v3 extensions in the certificate. | |
4891 | * Returns NULL if an error occurs. | |
4892 | */ | |
4893 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4894 | { | |
4895 | if (!s->scts_parsed) { | |
4896 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4897 | ct_extract_ocsp_response_scts(s) < 0 || | |
4898 | ct_extract_x509v3_extension_scts(s) < 0) | |
4899 | goto err; | |
4900 | ||
4901 | s->scts_parsed = 1; | |
4902 | } | |
4903 | return s->scts; | |
a230b26e | 4904 | err: |
ed29e82a RP |
4905 | return NULL; |
4906 | } | |
4907 | ||
a230b26e | 4908 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4909 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4910 | { |
43341433 VD |
4911 | return 1; |
4912 | } | |
4913 | ||
a230b26e | 4914 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4915 | const STACK_OF(SCT) *scts, void *unused_arg) |
4916 | { | |
4917 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4918 | int i; | |
ed29e82a | 4919 | |
43341433 VD |
4920 | for (i = 0; i < count; ++i) { |
4921 | SCT *sct = sk_SCT_value(scts, i); | |
4922 | int status = SCT_get_validation_status(sct); | |
4923 | ||
4924 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4925 | return 1; | |
4926 | } | |
4927 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4928 | return 0; | |
4929 | } | |
4930 | ||
4931 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4932 | void *arg) | |
4933 | { | |
ed29e82a RP |
4934 | /* |
4935 | * Since code exists that uses the custom extension handler for CT, look | |
4936 | * for this and throw an error if they have already registered to use CT. | |
4937 | */ | |
4938 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4939 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4940 | { | |
ed29e82a RP |
4941 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4942 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4943 | return 0; |
ed29e82a RP |
4944 | } |
4945 | ||
ed29e82a | 4946 | if (callback != NULL) { |
a230b26e EK |
4947 | /* |
4948 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4949 | */ | |
ed29e82a | 4950 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4951 | return 0; |
ed29e82a RP |
4952 | } |
4953 | ||
43341433 VD |
4954 | s->ct_validation_callback = callback; |
4955 | s->ct_validation_callback_arg = arg; | |
4956 | ||
4957 | return 1; | |
ed29e82a RP |
4958 | } |
4959 | ||
43341433 | 4960 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4961 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4962 | { |
ed29e82a RP |
4963 | /* |
4964 | * Since code exists that uses the custom extension handler for CT, look for | |
4965 | * this and throw an error if they have already registered to use CT. | |
4966 | */ | |
4967 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4968 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4969 | { | |
ed29e82a RP |
4970 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4971 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4972 | return 0; |
ed29e82a RP |
4973 | } |
4974 | ||
4975 | ctx->ct_validation_callback = callback; | |
4976 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4977 | return 1; |
ed29e82a RP |
4978 | } |
4979 | ||
43341433 | 4980 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4981 | { |
43341433 | 4982 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4983 | } |
4984 | ||
43341433 | 4985 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4986 | { |
43341433 | 4987 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4988 | } |
4989 | ||
4d482ee2 | 4990 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4991 | { |
4992 | int ret = 0; | |
3f3c7d26 | 4993 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4994 | X509 *issuer; |
b9aec69a | 4995 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4996 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4997 | const STACK_OF(SCT) *scts; | |
4998 | ||
43341433 VD |
4999 | /* |
5000 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
5001 | * skip SCT validation - just return success. Applications that continue | |
5002 | * handshakes without certificates, with unverified chains, or pinned leaf | |
5003 | * certificates are outside the scope of the WebPKI and CT. | |
5004 | * | |
5005 | * The above exclusions notwithstanding the vast majority of peers will | |
5006 | * have rather ordinary certificate chains validated by typical | |
5007 | * applications that perform certificate verification and therefore will | |
5008 | * process SCTs when enabled. | |
5009 | */ | |
5010 | if (s->ct_validation_callback == NULL || cert == NULL || | |
5011 | s->verify_result != X509_V_OK || | |
a230b26e | 5012 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
5013 | return 1; |
5014 | ||
43341433 VD |
5015 | /* |
5016 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
5017 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
5018 | */ | |
5019 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
5020 | switch (dane->mtlsa->usage) { | |
5021 | case DANETLS_USAGE_DANE_TA: | |
5022 | case DANETLS_USAGE_DANE_EE: | |
5023 | return 1; | |
5024 | } | |
ed29e82a RP |
5025 | } |
5026 | ||
ed29e82a RP |
5027 | ctx = CT_POLICY_EVAL_CTX_new(); |
5028 | if (ctx == NULL) { | |
f63a17d6 MC |
5029 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT, |
5030 | ERR_R_MALLOC_FAILURE); | |
ed29e82a RP |
5031 | goto end; |
5032 | } | |
5033 | ||
43341433 | 5034 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
5035 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
5036 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
5037 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
6a71e06d RP |
5038 | CT_POLICY_EVAL_CTX_set_time( |
5039 | ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000); | |
ed29e82a RP |
5040 | |
5041 | scts = SSL_get0_peer_scts(s); | |
5042 | ||
43341433 VD |
5043 | /* |
5044 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
5045 | * when some are invalid, and < 0 on various internal errors (out of | |
5046 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
5047 | * reason to abort the handshake, that decision is up to the callback. | |
5048 | * Therefore, we error out only in the unexpected case that the return | |
5049 | * value is negative. | |
5050 | * | |
5051 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 5052 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
5053 | * status of each of the provided SCTs. So long as it correctly separates |
5054 | * the wheat from the chaff it should return success. Failure in this case | |
5055 | * ought to correspond to an inability to carry out its duties. | |
5056 | */ | |
5057 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
f63a17d6 MC |
5058 | SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT, |
5059 | SSL_R_SCT_VERIFICATION_FAILED); | |
ed29e82a RP |
5060 | goto end; |
5061 | } | |
5062 | ||
5063 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
5064 | if (ret < 0) | |
a230b26e | 5065 | ret = 0; /* This function returns 0 on failure */ |
f63a17d6 MC |
5066 | if (!ret) |
5067 | SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT, | |
5068 | SSL_R_CALLBACK_FAILED); | |
ed29e82a | 5069 | |
a230b26e | 5070 | end: |
ed29e82a | 5071 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
5072 | /* |
5073 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
5074 | * failure return code here. Also the application may wish the complete | |
5075 | * the handshake, and then disconnect cleanly at a higher layer, after | |
5076 | * checking the verification status of the completed connection. | |
5077 | * | |
5078 | * We therefore force a certificate verification failure which will be | |
5079 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
5080 | * session. | |
5081 | * | |
5082 | * Note: the permissive callback is for information gathering only, always | |
5083 | * returns success, and does not affect verification status. Only the | |
5084 | * strict callback or a custom application-specified callback can trigger | |
5085 | * connection failure or record a verification error. | |
5086 | */ | |
5087 | if (ret <= 0) | |
5088 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
5089 | return ret; |
5090 | } | |
5091 | ||
43341433 VD |
5092 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
5093 | { | |
5094 | switch (validation_mode) { | |
5095 | default: | |
5096 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
5097 | return 0; | |
5098 | case SSL_CT_VALIDATION_PERMISSIVE: | |
5099 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
5100 | case SSL_CT_VALIDATION_STRICT: | |
5101 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
5102 | } | |
5103 | } | |
5104 | ||
5105 | int SSL_enable_ct(SSL *s, int validation_mode) | |
5106 | { | |
5107 | switch (validation_mode) { | |
5108 | default: | |
5109 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
5110 | return 0; | |
5111 | case SSL_CT_VALIDATION_PERMISSIVE: | |
5112 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
5113 | case SSL_CT_VALIDATION_STRICT: | |
5114 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
5115 | } | |
5116 | } | |
5117 | ||
ed29e82a RP |
5118 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
5119 | { | |
328f36c5 | 5120 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
5121 | } |
5122 | ||
5123 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
5124 | { | |
5125 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
5126 | } | |
5127 | ||
a230b26e | 5128 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
5129 | { |
5130 | CTLOG_STORE_free(ctx->ctlog_store); | |
5131 | ctx->ctlog_store = logs; | |
5132 | } | |
5133 | ||
5134 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
5135 | { | |
5136 | return ctx->ctlog_store; | |
5137 | } | |
5138 | ||
6b1bb98f BK |
5139 | #endif /* OPENSSL_NO_CT */ |
5140 | ||
a9c0d8be DB |
5141 | void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb, |
5142 | void *arg) | |
6b1bb98f | 5143 | { |
a9c0d8be DB |
5144 | c->client_hello_cb = cb; |
5145 | c->client_hello_cb_arg = arg; | |
6b1bb98f BK |
5146 | } |
5147 | ||
a9c0d8be | 5148 | int SSL_client_hello_isv2(SSL *s) |
6b1bb98f BK |
5149 | { |
5150 | if (s->clienthello == NULL) | |
5151 | return 0; | |
5152 | return s->clienthello->isv2; | |
5153 | } | |
5154 | ||
a9c0d8be | 5155 | unsigned int SSL_client_hello_get0_legacy_version(SSL *s) |
6b1bb98f BK |
5156 | { |
5157 | if (s->clienthello == NULL) | |
5158 | return 0; | |
5159 | return s->clienthello->legacy_version; | |
5160 | } | |
5161 | ||
a9c0d8be | 5162 | size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5163 | { |
5164 | if (s->clienthello == NULL) | |
5165 | return 0; | |
5166 | if (out != NULL) | |
5167 | *out = s->clienthello->random; | |
5168 | return SSL3_RANDOM_SIZE; | |
5169 | } | |
5170 | ||
a9c0d8be | 5171 | size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5172 | { |
5173 | if (s->clienthello == NULL) | |
5174 | return 0; | |
5175 | if (out != NULL) | |
5176 | *out = s->clienthello->session_id; | |
5177 | return s->clienthello->session_id_len; | |
5178 | } | |
5179 | ||
a9c0d8be | 5180 | size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5181 | { |
5182 | if (s->clienthello == NULL) | |
5183 | return 0; | |
5184 | if (out != NULL) | |
5185 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
5186 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
5187 | } | |
5188 | ||
a9c0d8be | 5189 | size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5190 | { |
5191 | if (s->clienthello == NULL) | |
5192 | return 0; | |
5193 | if (out != NULL) | |
5194 | *out = s->clienthello->compressions; | |
5195 | return s->clienthello->compressions_len; | |
5196 | } | |
5197 | ||
a9c0d8be | 5198 | int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen) |
193b5d76 BK |
5199 | { |
5200 | RAW_EXTENSION *ext; | |
5201 | int *present; | |
5202 | size_t num = 0, i; | |
5203 | ||
5204 | if (s->clienthello == NULL || out == NULL || outlen == NULL) | |
5205 | return 0; | |
5206 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
5207 | ext = s->clienthello->pre_proc_exts + i; | |
5208 | if (ext->present) | |
5209 | num++; | |
5210 | } | |
6fda11ae | 5211 | if (num == 0) { |
5212 | *out = NULL; | |
5213 | *outlen = 0; | |
5214 | return 1; | |
5215 | } | |
cdb10bae RS |
5216 | if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) { |
5217 | SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT, | |
5218 | ERR_R_MALLOC_FAILURE); | |
193b5d76 | 5219 | return 0; |
cdb10bae | 5220 | } |
193b5d76 BK |
5221 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { |
5222 | ext = s->clienthello->pre_proc_exts + i; | |
5223 | if (ext->present) { | |
5224 | if (ext->received_order >= num) | |
5225 | goto err; | |
5226 | present[ext->received_order] = ext->type; | |
5227 | } | |
5228 | } | |
5229 | *out = present; | |
5230 | *outlen = num; | |
5231 | return 1; | |
5232 | err: | |
5233 | OPENSSL_free(present); | |
5234 | return 0; | |
5235 | } | |
5236 | ||
a9c0d8be | 5237 | int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out, |
6b1bb98f BK |
5238 | size_t *outlen) |
5239 | { | |
5240 | size_t i; | |
5241 | RAW_EXTENSION *r; | |
5242 | ||
5243 | if (s->clienthello == NULL) | |
5244 | return 0; | |
5245 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
5246 | r = s->clienthello->pre_proc_exts + i; | |
5247 | if (r->present && r->type == type) { | |
5248 | if (out != NULL) | |
5249 | *out = PACKET_data(&r->data); | |
5250 | if (outlen != NULL) | |
5251 | *outlen = PACKET_remaining(&r->data); | |
5252 | return 1; | |
5253 | } | |
5254 | } | |
5255 | return 0; | |
5256 | } | |
2faa1b48 | 5257 | |
a58eb06d TS |
5258 | int SSL_free_buffers(SSL *ssl) |
5259 | { | |
5260 | RECORD_LAYER *rl = &ssl->rlayer; | |
5261 | ||
5262 | if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl)) | |
5263 | return 0; | |
5264 | ||
5265 | RECORD_LAYER_release(rl); | |
5266 | return 1; | |
5267 | } | |
5268 | ||
5269 | int SSL_alloc_buffers(SSL *ssl) | |
5270 | { | |
5271 | return ssl3_setup_buffers(ssl); | |
5272 | } | |
5273 | ||
2faa1b48 CB |
5274 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) |
5275 | { | |
5276 | ctx->keylog_callback = cb; | |
5277 | } | |
5278 | ||
5279 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
5280 | { | |
5281 | return ctx->keylog_callback; | |
5282 | } | |
5283 | ||
5284 | static int nss_keylog_int(const char *prefix, | |
5285 | SSL *ssl, | |
5286 | const uint8_t *parameter_1, | |
5287 | size_t parameter_1_len, | |
5288 | const uint8_t *parameter_2, | |
5289 | size_t parameter_2_len) | |
5290 | { | |
5291 | char *out = NULL; | |
5292 | char *cursor = NULL; | |
5293 | size_t out_len = 0; | |
5294 | size_t i; | |
5295 | size_t prefix_len; | |
5296 | ||
20870286 P |
5297 | if (ssl->ctx->keylog_callback == NULL) |
5298 | return 1; | |
2faa1b48 CB |
5299 | |
5300 | /* | |
5301 | * Our output buffer will contain the following strings, rendered with | |
5302 | * space characters in between, terminated by a NULL character: first the | |
5303 | * prefix, then the first parameter, then the second parameter. The | |
5304 | * meaning of each parameter depends on the specific key material being | |
5305 | * logged. Note that the first and second parameters are encoded in | |
5306 | * hexadecimal, so we need a buffer that is twice their lengths. | |
5307 | */ | |
5308 | prefix_len = strlen(prefix); | |
e931f370 | 5309 | out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3; |
2faa1b48 | 5310 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { |
f63a17d6 MC |
5311 | SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT, |
5312 | ERR_R_MALLOC_FAILURE); | |
2faa1b48 CB |
5313 | return 0; |
5314 | } | |
5315 | ||
5316 | strcpy(cursor, prefix); | |
5317 | cursor += prefix_len; | |
5318 | *cursor++ = ' '; | |
5319 | ||
5320 | for (i = 0; i < parameter_1_len; i++) { | |
5321 | sprintf(cursor, "%02x", parameter_1[i]); | |
5322 | cursor += 2; | |
5323 | } | |
5324 | *cursor++ = ' '; | |
5325 | ||
5326 | for (i = 0; i < parameter_2_len; i++) { | |
5327 | sprintf(cursor, "%02x", parameter_2[i]); | |
5328 | cursor += 2; | |
5329 | } | |
5330 | *cursor = '\0'; | |
5331 | ||
5332 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
e931f370 | 5333 | OPENSSL_clear_free(out, out_len); |
2faa1b48 CB |
5334 | return 1; |
5335 | ||
5336 | } | |
5337 | ||
5338 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
5339 | const uint8_t *encrypted_premaster, | |
5340 | size_t encrypted_premaster_len, | |
5341 | const uint8_t *premaster, | |
5342 | size_t premaster_len) | |
5343 | { | |
5344 | if (encrypted_premaster_len < 8) { | |
f63a17d6 MC |
5345 | SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, |
5346 | SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
2faa1b48 CB |
5347 | return 0; |
5348 | } | |
5349 | ||
f0deb4d3 | 5350 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
5351 | return nss_keylog_int("RSA", |
5352 | ssl, | |
5353 | encrypted_premaster, | |
f0deb4d3 | 5354 | 8, |
2faa1b48 CB |
5355 | premaster, |
5356 | premaster_len); | |
5357 | } | |
5358 | ||
2c7bd692 CB |
5359 | int ssl_log_secret(SSL *ssl, |
5360 | const char *label, | |
5361 | const uint8_t *secret, | |
5362 | size_t secret_len) | |
2faa1b48 | 5363 | { |
2c7bd692 | 5364 | return nss_keylog_int(label, |
2faa1b48 | 5365 | ssl, |
555cbb32 | 5366 | ssl->s3.client_random, |
2c7bd692 CB |
5367 | SSL3_RANDOM_SIZE, |
5368 | secret, | |
5369 | secret_len); | |
2faa1b48 CB |
5370 | } |
5371 | ||
ccb8e6e0 BK |
5372 | #define SSLV2_CIPHER_LEN 3 |
5373 | ||
f63a17d6 | 5374 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format) |
ccb8e6e0 | 5375 | { |
ccb8e6e0 | 5376 | int n; |
ccb8e6e0 BK |
5377 | |
5378 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5379 | ||
5380 | if (PACKET_remaining(cipher_suites) == 0) { | |
f63a17d6 MC |
5381 | SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST, |
5382 | SSL_R_NO_CIPHERS_SPECIFIED); | |
90134d98 | 5383 | return 0; |
ccb8e6e0 BK |
5384 | } |
5385 | ||
5386 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
f63a17d6 | 5387 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
dd5a4279 | 5388 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
90134d98 | 5389 | return 0; |
ccb8e6e0 BK |
5390 | } |
5391 | ||
555cbb32 TS |
5392 | OPENSSL_free(s->s3.tmp.ciphers_raw); |
5393 | s->s3.tmp.ciphers_raw = NULL; | |
5394 | s->s3.tmp.ciphers_rawlen = 0; | |
ccb8e6e0 BK |
5395 | |
5396 | if (sslv2format) { | |
5397 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
5398 | PACKET sslv2ciphers = *cipher_suites; | |
5399 | unsigned int leadbyte; | |
5400 | unsigned char *raw; | |
5401 | ||
5402 | /* | |
5403 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
5404 | * preprocessing to convert the list first. If there are any SSLv2 only | |
5405 | * ciphersuites with a non-zero leading byte then we are going to | |
5406 | * slightly over allocate because we won't store those. But that isn't a | |
5407 | * problem. | |
5408 | */ | |
5409 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
555cbb32 | 5410 | s->s3.tmp.ciphers_raw = raw; |
ccb8e6e0 | 5411 | if (raw == NULL) { |
f63a17d6 MC |
5412 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5413 | ERR_R_MALLOC_FAILURE); | |
5414 | return 0; | |
ccb8e6e0 | 5415 | } |
555cbb32 | 5416 | for (s->s3.tmp.ciphers_rawlen = 0; |
ccb8e6e0 BK |
5417 | PACKET_remaining(&sslv2ciphers) > 0; |
5418 | raw += TLS_CIPHER_LEN) { | |
5419 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
5420 | || (leadbyte == 0 | |
5421 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
5422 | TLS_CIPHER_LEN)) | |
5423 | || (leadbyte != 0 | |
5424 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
f63a17d6 MC |
5425 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5426 | SSL_R_BAD_PACKET); | |
555cbb32 TS |
5427 | OPENSSL_free(s->s3.tmp.ciphers_raw); |
5428 | s->s3.tmp.ciphers_raw = NULL; | |
5429 | s->s3.tmp.ciphers_rawlen = 0; | |
f63a17d6 | 5430 | return 0; |
ccb8e6e0 BK |
5431 | } |
5432 | if (leadbyte == 0) | |
555cbb32 | 5433 | s->s3.tmp.ciphers_rawlen += TLS_CIPHER_LEN; |
ccb8e6e0 | 5434 | } |
555cbb32 TS |
5435 | } else if (!PACKET_memdup(cipher_suites, &s->s3.tmp.ciphers_raw, |
5436 | &s->s3.tmp.ciphers_rawlen)) { | |
f63a17d6 MC |
5437 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5438 | ERR_R_INTERNAL_ERROR); | |
5439 | return 0; | |
ccb8e6e0 | 5440 | } |
90134d98 | 5441 | return 1; |
90134d98 BK |
5442 | } |
5443 | ||
5444 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
5445 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
5446 | STACK_OF(SSL_CIPHER) **scsvs) | |
5447 | { | |
90134d98 BK |
5448 | PACKET pkt; |
5449 | ||
5450 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
5451 | return 0; | |
f63a17d6 | 5452 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0); |
90134d98 BK |
5453 | } |
5454 | ||
5455 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
5456 | STACK_OF(SSL_CIPHER) **skp, | |
5457 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
f63a17d6 | 5458 | int sslv2format, int fatal) |
90134d98 BK |
5459 | { |
5460 | const SSL_CIPHER *c; | |
5461 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
5462 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
5463 | int n; | |
5464 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
5465 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
5466 | ||
5467 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5468 | ||
5469 | if (PACKET_remaining(cipher_suites) == 0) { | |
f63a17d6 MC |
5470 | if (fatal) |
5471 | SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST, | |
5472 | SSL_R_NO_CIPHERS_SPECIFIED); | |
5473 | else | |
5474 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
90134d98 BK |
5475 | return 0; |
5476 | } | |
5477 | ||
5478 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
f63a17d6 MC |
5479 | if (fatal) |
5480 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5481 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
5482 | else | |
5483 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
5484 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
90134d98 BK |
5485 | return 0; |
5486 | } | |
5487 | ||
5488 | sk = sk_SSL_CIPHER_new_null(); | |
5489 | scsvs = sk_SSL_CIPHER_new_null(); | |
5490 | if (sk == NULL || scsvs == NULL) { | |
f63a17d6 MC |
5491 | if (fatal) |
5492 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5493 | ERR_R_MALLOC_FAILURE); | |
5494 | else | |
5495 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
90134d98 BK |
5496 | goto err; |
5497 | } | |
ccb8e6e0 BK |
5498 | |
5499 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
5500 | /* | |
5501 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
5502 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
5503 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
5504 | */ | |
5505 | if (sslv2format && cipher[0] != '\0') | |
5506 | continue; | |
5507 | ||
ccb8e6e0 BK |
5508 | /* For SSLv2-compat, ignore leading 0-byte. */ |
5509 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
5510 | if (c != NULL) { | |
90134d98 BK |
5511 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
5512 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
f63a17d6 MC |
5513 | if (fatal) |
5514 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, | |
5515 | SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
5516 | else | |
5517 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
ccb8e6e0 BK |
5518 | goto err; |
5519 | } | |
5520 | } | |
5521 | } | |
5522 | if (PACKET_remaining(cipher_suites) > 0) { | |
f63a17d6 MC |
5523 | if (fatal) |
5524 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5525 | SSL_R_BAD_LENGTH); | |
5526 | else | |
5527 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH); | |
ccb8e6e0 BK |
5528 | goto err; |
5529 | } | |
5530 | ||
90134d98 BK |
5531 | if (skp != NULL) |
5532 | *skp = sk; | |
5533 | else | |
5534 | sk_SSL_CIPHER_free(sk); | |
5535 | if (scsvs_out != NULL) | |
5536 | *scsvs_out = scsvs; | |
5537 | else | |
5538 | sk_SSL_CIPHER_free(scsvs); | |
5539 | return 1; | |
ccb8e6e0 BK |
5540 | err: |
5541 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
5542 | sk_SSL_CIPHER_free(scsvs); |
5543 | return 0; | |
ccb8e6e0 | 5544 | } |
3fc8d856 MC |
5545 | |
5546 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
5547 | { | |
5548 | ctx->max_early_data = max_early_data; | |
5549 | ||
5550 | return 1; | |
5551 | } | |
5552 | ||
46dcb945 | 5553 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
5554 | { |
5555 | return ctx->max_early_data; | |
5556 | } | |
5557 | ||
5558 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
5559 | { | |
5560 | s->max_early_data = max_early_data; | |
5561 | ||
5562 | return 1; | |
5563 | } | |
5564 | ||
a8e75d56 | 5565 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
5566 | { |
5567 | return s->max_early_data; | |
5568 | } | |
ae3947de | 5569 | |
4e8548e8 MC |
5570 | int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data) |
5571 | { | |
5572 | ctx->recv_max_early_data = recv_max_early_data; | |
5573 | ||
5574 | return 1; | |
5575 | } | |
5576 | ||
5577 | uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx) | |
5578 | { | |
5579 | return ctx->recv_max_early_data; | |
5580 | } | |
5581 | ||
5582 | int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data) | |
5583 | { | |
5584 | s->recv_max_early_data = recv_max_early_data; | |
5585 | ||
5586 | return 1; | |
5587 | } | |
5588 | ||
5589 | uint32_t SSL_get_recv_max_early_data(const SSL *s) | |
5590 | { | |
5591 | return s->recv_max_early_data; | |
5592 | } | |
5593 | ||
cf72c757 F |
5594 | __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl) |
5595 | { | |
5596 | /* Return any active Max Fragment Len extension */ | |
5597 | if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)) | |
5598 | return GET_MAX_FRAGMENT_LENGTH(ssl->session); | |
5599 | ||
5600 | /* return current SSL connection setting */ | |
5601 | return ssl->max_send_fragment; | |
5602 | } | |
5603 | ||
5604 | __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl) | |
5605 | { | |
5606 | /* Return a value regarding an active Max Fragment Len extension */ | |
5607 | if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session) | |
5608 | && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session)) | |
5609 | return GET_MAX_FRAGMENT_LENGTH(ssl->session); | |
5610 | ||
5611 | /* else limit |split_send_fragment| to current |max_send_fragment| */ | |
5612 | if (ssl->split_send_fragment > ssl->max_send_fragment) | |
5613 | return ssl->max_send_fragment; | |
5614 | ||
5615 | /* return current SSL connection setting */ | |
5616 | return ssl->split_send_fragment; | |
5617 | } | |
042c5753 MC |
5618 | |
5619 | int SSL_stateless(SSL *s) | |
5620 | { | |
5621 | int ret; | |
5622 | ||
5623 | /* Ensure there is no state left over from a previous invocation */ | |
5624 | if (!SSL_clear(s)) | |
d6bb50a5 | 5625 | return 0; |
042c5753 MC |
5626 | |
5627 | ERR_clear_error(); | |
5628 | ||
555cbb32 | 5629 | s->s3.flags |= TLS1_FLAGS_STATELESS; |
042c5753 | 5630 | ret = SSL_accept(s); |
555cbb32 | 5631 | s->s3.flags &= ~TLS1_FLAGS_STATELESS; |
042c5753 | 5632 | |
d6bb50a5 | 5633 | if (ret > 0 && s->ext.cookieok) |
c36001c3 MC |
5634 | return 1; |
5635 | ||
e440f513 MC |
5636 | if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s)) |
5637 | return 0; | |
5638 | ||
5639 | return -1; | |
042c5753 | 5640 | } |
9d75dce3 | 5641 | |
e97be718 MC |
5642 | void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) |
5643 | { | |
5644 | ctx->pha_enabled = val; | |
5645 | } | |
5646 | ||
32097b33 | 5647 | void SSL_set_post_handshake_auth(SSL *ssl, int val) |
9d75dce3 | 5648 | { |
32097b33 | 5649 | ssl->pha_enabled = val; |
9d75dce3 TS |
5650 | } |
5651 | ||
5652 | int SSL_verify_client_post_handshake(SSL *ssl) | |
5653 | { | |
5654 | if (!SSL_IS_TLS13(ssl)) { | |
5655 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION); | |
5656 | return 0; | |
5657 | } | |
5658 | if (!ssl->server) { | |
5659 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER); | |
5660 | return 0; | |
5661 | } | |
5662 | ||
5663 | if (!SSL_is_init_finished(ssl)) { | |
5664 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT); | |
5665 | return 0; | |
5666 | } | |
5667 | ||
5668 | switch (ssl->post_handshake_auth) { | |
5669 | case SSL_PHA_NONE: | |
5670 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED); | |
5671 | return 0; | |
5672 | default: | |
5673 | case SSL_PHA_EXT_SENT: | |
5674 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR); | |
5675 | return 0; | |
5676 | case SSL_PHA_EXT_RECEIVED: | |
5677 | break; | |
5678 | case SSL_PHA_REQUEST_PENDING: | |
5679 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING); | |
5680 | return 0; | |
5681 | case SSL_PHA_REQUESTED: | |
5682 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT); | |
5683 | return 0; | |
5684 | } | |
5685 | ||
5686 | ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING; | |
5687 | ||
5688 | /* checks verify_mode and algorithm_auth */ | |
5689 | if (!send_certificate_request(ssl)) { | |
5690 | ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */ | |
5691 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG); | |
5692 | return 0; | |
5693 | } | |
5694 | ||
5695 | ossl_statem_set_in_init(ssl, 1); | |
5696 | return 1; | |
5697 | } | |
df0fed9a TS |
5698 | |
5699 | int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx, | |
5700 | SSL_CTX_generate_session_ticket_fn gen_cb, | |
5701 | SSL_CTX_decrypt_session_ticket_fn dec_cb, | |
5702 | void *arg) | |
5703 | { | |
5704 | ctx->generate_ticket_cb = gen_cb; | |
5705 | ctx->decrypt_ticket_cb = dec_cb; | |
5706 | ctx->ticket_cb_data = arg; | |
5707 | return 1; | |
5708 | } | |
c9598459 MC |
5709 | |
5710 | void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx, | |
5711 | SSL_allow_early_data_cb_fn cb, | |
5712 | void *arg) | |
5713 | { | |
5714 | ctx->allow_early_data_cb = cb; | |
5715 | ctx->allow_early_data_cb_data = arg; | |
5716 | } | |
5717 | ||
5718 | void SSL_set_allow_early_data_cb(SSL *s, | |
5719 | SSL_allow_early_data_cb_fn cb, | |
5720 | void *arg) | |
5721 | { | |
5722 | s->allow_early_data_cb = cb; | |
5723 | s->allow_early_data_cb_data = arg; | |
5724 | } |