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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" |
ec577822 | 14 | #include <openssl/objects.h> |
bb7cd4e3 | 15 | #include <openssl/x509v3.h> |
6434abbf | 16 | #include <openssl/rand.h> |
6decf943 | 17 | #include <openssl/rand_drbg.h> |
67c8e7f4 | 18 | #include <openssl/ocsp.h> |
3c27208f RS |
19 | #include <openssl/dh.h> |
20 | #include <openssl/engine.h> | |
07bbc92c | 21 | #include <openssl/async.h> |
3c27208f | 22 | #include <openssl/ct.h> |
67dc995e | 23 | #include "internal/cryptlib.h" |
cd420b0b | 24 | #include "internal/refcount.h" |
50ec7505 | 25 | #include "internal/ktls.h" |
0f113f3e | 26 | |
fce78bd4 BE |
27 | static int ssl_undefined_function_1(SSL *ssl, SSL3_RECORD *r, size_t s, int t) |
28 | { | |
29 | (void)r; | |
30 | (void)s; | |
31 | (void)t; | |
32 | return ssl_undefined_function(ssl); | |
33 | } | |
34 | ||
35 | static int ssl_undefined_function_2(SSL *ssl, SSL3_RECORD *r, unsigned char *s, | |
36 | int t) | |
37 | { | |
38 | (void)r; | |
39 | (void)s; | |
40 | (void)t; | |
41 | return ssl_undefined_function(ssl); | |
42 | } | |
43 | ||
44 | static int ssl_undefined_function_3(SSL *ssl, unsigned char *r, | |
45 | unsigned char *s, size_t t, size_t *u) | |
46 | { | |
47 | (void)r; | |
48 | (void)s; | |
49 | (void)t; | |
50 | (void)u; | |
51 | return ssl_undefined_function(ssl); | |
52 | } | |
53 | ||
54 | static int ssl_undefined_function_4(SSL *ssl, int r) | |
55 | { | |
56 | (void)r; | |
57 | return ssl_undefined_function(ssl); | |
58 | } | |
59 | ||
60 | static size_t ssl_undefined_function_5(SSL *ssl, const char *r, size_t s, | |
61 | unsigned char *t) | |
62 | { | |
63 | (void)r; | |
64 | (void)s; | |
65 | (void)t; | |
66 | return ssl_undefined_function(ssl); | |
67 | } | |
68 | ||
69 | static int ssl_undefined_function_6(int r) | |
70 | { | |
71 | (void)r; | |
72 | return ssl_undefined_function(NULL); | |
73 | } | |
74 | ||
75 | static int ssl_undefined_function_7(SSL *ssl, unsigned char *r, size_t s, | |
76 | const char *t, size_t u, | |
77 | const unsigned char *v, size_t w, int x) | |
78 | { | |
79 | (void)r; | |
80 | (void)s; | |
81 | (void)t; | |
82 | (void)u; | |
83 | (void)v; | |
84 | (void)w; | |
85 | (void)x; | |
86 | return ssl_undefined_function(ssl); | |
87 | } | |
88 | ||
0f113f3e | 89 | SSL3_ENC_METHOD ssl3_undef_enc_method = { |
fce78bd4 BE |
90 | ssl_undefined_function_1, |
91 | ssl_undefined_function_2, | |
0f113f3e | 92 | ssl_undefined_function, |
fce78bd4 BE |
93 | ssl_undefined_function_3, |
94 | ssl_undefined_function_4, | |
95 | ssl_undefined_function_5, | |
0f113f3e MC |
96 | NULL, /* client_finished_label */ |
97 | 0, /* client_finished_label_len */ | |
98 | NULL, /* server_finished_label */ | |
99 | 0, /* server_finished_label_len */ | |
fce78bd4 BE |
100 | ssl_undefined_function_6, |
101 | ssl_undefined_function_7, | |
0f113f3e | 102 | }; |
d02b48c6 | 103 | |
07bbc92c MC |
104 | struct ssl_async_args { |
105 | SSL *s; | |
106 | void *buf; | |
348240c6 | 107 | size_t num; |
a230b26e | 108 | enum { READFUNC, WRITEFUNC, OTHERFUNC } type; |
add2f5ca | 109 | union { |
eda75751 | 110 | int (*func_read) (SSL *, void *, size_t, size_t *); |
7ee8627f | 111 | int (*func_write) (SSL *, const void *, size_t, size_t *); |
a230b26e | 112 | int (*func_other) (SSL *); |
add2f5ca | 113 | } f; |
07bbc92c MC |
114 | }; |
115 | ||
919ba009 VD |
116 | static const struct { |
117 | uint8_t mtype; | |
118 | uint8_t ord; | |
a230b26e | 119 | int nid; |
919ba009 | 120 | } dane_mds[] = { |
a230b26e EK |
121 | { |
122 | DANETLS_MATCHING_FULL, 0, NID_undef | |
123 | }, | |
124 | { | |
125 | DANETLS_MATCHING_2256, 1, NID_sha256 | |
126 | }, | |
127 | { | |
128 | DANETLS_MATCHING_2512, 2, NID_sha512 | |
129 | }, | |
919ba009 VD |
130 | }; |
131 | ||
132 | static int dane_ctx_enable(struct dane_ctx_st *dctx) | |
133 | { | |
134 | const EVP_MD **mdevp; | |
135 | uint8_t *mdord; | |
136 | uint8_t mdmax = DANETLS_MATCHING_LAST; | |
a230b26e | 137 | int n = ((int)mdmax) + 1; /* int to handle PrivMatch(255) */ |
919ba009 VD |
138 | size_t i; |
139 | ||
5ae4ceb9 VD |
140 | if (dctx->mdevp != NULL) |
141 | return 1; | |
142 | ||
919ba009 VD |
143 | mdevp = OPENSSL_zalloc(n * sizeof(*mdevp)); |
144 | mdord = OPENSSL_zalloc(n * sizeof(*mdord)); | |
145 | ||
146 | if (mdord == NULL || mdevp == NULL) { | |
b3bd3d5a | 147 | OPENSSL_free(mdord); |
919ba009 VD |
148 | OPENSSL_free(mdevp); |
149 | SSLerr(SSL_F_DANE_CTX_ENABLE, ERR_R_MALLOC_FAILURE); | |
150 | return 0; | |
151 | } | |
152 | ||
153 | /* Install default entries */ | |
154 | for (i = 0; i < OSSL_NELEM(dane_mds); ++i) { | |
155 | const EVP_MD *md; | |
156 | ||
157 | if (dane_mds[i].nid == NID_undef || | |
158 | (md = EVP_get_digestbynid(dane_mds[i].nid)) == NULL) | |
159 | continue; | |
160 | mdevp[dane_mds[i].mtype] = md; | |
161 | mdord[dane_mds[i].mtype] = dane_mds[i].ord; | |
162 | } | |
163 | ||
164 | dctx->mdevp = mdevp; | |
165 | dctx->mdord = mdord; | |
166 | dctx->mdmax = mdmax; | |
167 | ||
168 | return 1; | |
169 | } | |
170 | ||
171 | static void dane_ctx_final(struct dane_ctx_st *dctx) | |
172 | { | |
173 | OPENSSL_free(dctx->mdevp); | |
174 | dctx->mdevp = NULL; | |
175 | ||
176 | OPENSSL_free(dctx->mdord); | |
177 | dctx->mdord = NULL; | |
178 | dctx->mdmax = 0; | |
179 | } | |
180 | ||
181 | static void tlsa_free(danetls_record *t) | |
182 | { | |
183 | if (t == NULL) | |
184 | return; | |
185 | OPENSSL_free(t->data); | |
186 | EVP_PKEY_free(t->spki); | |
187 | OPENSSL_free(t); | |
188 | } | |
189 | ||
b9aec69a | 190 | static void dane_final(SSL_DANE *dane) |
919ba009 VD |
191 | { |
192 | sk_danetls_record_pop_free(dane->trecs, tlsa_free); | |
193 | dane->trecs = NULL; | |
194 | ||
195 | sk_X509_pop_free(dane->certs, X509_free); | |
196 | dane->certs = NULL; | |
197 | ||
198 | X509_free(dane->mcert); | |
199 | dane->mcert = NULL; | |
200 | dane->mtlsa = NULL; | |
201 | dane->mdpth = -1; | |
202 | dane->pdpth = -1; | |
203 | } | |
204 | ||
205 | /* | |
206 | * dane_copy - Copy dane configuration, sans verification state. | |
207 | */ | |
208 | static int ssl_dane_dup(SSL *to, SSL *from) | |
209 | { | |
210 | int num; | |
211 | int i; | |
212 | ||
213 | if (!DANETLS_ENABLED(&from->dane)) | |
214 | return 1; | |
215 | ||
e431363f | 216 | num = sk_danetls_record_num(from->dane.trecs); |
919ba009 | 217 | dane_final(&to->dane); |
5ae4ceb9 | 218 | to->dane.flags = from->dane.flags; |
9f6b22b8 | 219 | to->dane.dctx = &to->ctx->dane; |
7a908204 | 220 | to->dane.trecs = sk_danetls_record_new_reserve(NULL, num); |
9f6b22b8 VD |
221 | |
222 | if (to->dane.trecs == NULL) { | |
223 | SSLerr(SSL_F_SSL_DANE_DUP, ERR_R_MALLOC_FAILURE); | |
224 | return 0; | |
225 | } | |
919ba009 | 226 | |
919ba009 VD |
227 | for (i = 0; i < num; ++i) { |
228 | danetls_record *t = sk_danetls_record_value(from->dane.trecs, i); | |
9f6b22b8 | 229 | |
919ba009 VD |
230 | if (SSL_dane_tlsa_add(to, t->usage, t->selector, t->mtype, |
231 | t->data, t->dlen) <= 0) | |
232 | return 0; | |
233 | } | |
234 | return 1; | |
235 | } | |
236 | ||
a230b26e EK |
237 | static int dane_mtype_set(struct dane_ctx_st *dctx, |
238 | const EVP_MD *md, uint8_t mtype, uint8_t ord) | |
919ba009 VD |
239 | { |
240 | int i; | |
241 | ||
242 | if (mtype == DANETLS_MATCHING_FULL && md != NULL) { | |
a230b26e | 243 | SSLerr(SSL_F_DANE_MTYPE_SET, SSL_R_DANE_CANNOT_OVERRIDE_MTYPE_FULL); |
919ba009 VD |
244 | return 0; |
245 | } | |
246 | ||
247 | if (mtype > dctx->mdmax) { | |
248 | const EVP_MD **mdevp; | |
249 | uint8_t *mdord; | |
a230b26e | 250 | int n = ((int)mtype) + 1; |
919ba009 VD |
251 | |
252 | mdevp = OPENSSL_realloc(dctx->mdevp, n * sizeof(*mdevp)); | |
253 | if (mdevp == NULL) { | |
254 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
255 | return -1; | |
256 | } | |
257 | dctx->mdevp = mdevp; | |
258 | ||
259 | mdord = OPENSSL_realloc(dctx->mdord, n * sizeof(*mdord)); | |
260 | if (mdord == NULL) { | |
261 | SSLerr(SSL_F_DANE_MTYPE_SET, ERR_R_MALLOC_FAILURE); | |
262 | return -1; | |
263 | } | |
264 | dctx->mdord = mdord; | |
265 | ||
266 | /* Zero-fill any gaps */ | |
a230b26e | 267 | for (i = dctx->mdmax + 1; i < mtype; ++i) { |
919ba009 VD |
268 | mdevp[i] = NULL; |
269 | mdord[i] = 0; | |
270 | } | |
271 | ||
272 | dctx->mdmax = mtype; | |
273 | } | |
274 | ||
275 | dctx->mdevp[mtype] = md; | |
276 | /* Coerce ordinal of disabled matching types to 0 */ | |
277 | dctx->mdord[mtype] = (md == NULL) ? 0 : ord; | |
278 | ||
279 | return 1; | |
280 | } | |
281 | ||
b9aec69a | 282 | static const EVP_MD *tlsa_md_get(SSL_DANE *dane, uint8_t mtype) |
919ba009 VD |
283 | { |
284 | if (mtype > dane->dctx->mdmax) | |
285 | return NULL; | |
286 | return dane->dctx->mdevp[mtype]; | |
287 | } | |
288 | ||
a230b26e EK |
289 | static int dane_tlsa_add(SSL_DANE *dane, |
290 | uint8_t usage, | |
291 | uint8_t selector, | |
a41a6120 | 292 | uint8_t mtype, unsigned const char *data, size_t dlen) |
919ba009 VD |
293 | { |
294 | danetls_record *t; | |
295 | const EVP_MD *md = NULL; | |
296 | int ilen = (int)dlen; | |
297 | int i; | |
9f6b22b8 | 298 | int num; |
919ba009 VD |
299 | |
300 | if (dane->trecs == NULL) { | |
301 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_NOT_ENABLED); | |
302 | return -1; | |
303 | } | |
304 | ||
305 | if (ilen < 0 || dlen != (size_t)ilen) { | |
306 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DATA_LENGTH); | |
307 | return 0; | |
308 | } | |
309 | ||
310 | if (usage > DANETLS_USAGE_LAST) { | |
311 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE_USAGE); | |
312 | return 0; | |
313 | } | |
314 | ||
315 | if (selector > DANETLS_SELECTOR_LAST) { | |
316 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_SELECTOR); | |
317 | return 0; | |
318 | } | |
319 | ||
320 | if (mtype != DANETLS_MATCHING_FULL) { | |
321 | md = tlsa_md_get(dane, mtype); | |
322 | if (md == NULL) { | |
323 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_MATCHING_TYPE); | |
324 | return 0; | |
325 | } | |
326 | } | |
327 | ||
328 | if (md != NULL && dlen != (size_t)EVP_MD_size(md)) { | |
329 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_DIGEST_LENGTH); | |
330 | return 0; | |
331 | } | |
332 | if (!data) { | |
333 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_NULL_DATA); | |
334 | return 0; | |
335 | } | |
336 | ||
337 | if ((t = OPENSSL_zalloc(sizeof(*t))) == NULL) { | |
338 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
339 | return -1; | |
340 | } | |
341 | ||
342 | t->usage = usage; | |
343 | t->selector = selector; | |
344 | t->mtype = mtype; | |
348240c6 | 345 | t->data = OPENSSL_malloc(dlen); |
919ba009 VD |
346 | if (t->data == NULL) { |
347 | tlsa_free(t); | |
348 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
349 | return -1; | |
350 | } | |
348240c6 MC |
351 | memcpy(t->data, data, dlen); |
352 | t->dlen = dlen; | |
919ba009 VD |
353 | |
354 | /* Validate and cache full certificate or public key */ | |
355 | if (mtype == DANETLS_MATCHING_FULL) { | |
356 | const unsigned char *p = data; | |
357 | X509 *cert = NULL; | |
358 | EVP_PKEY *pkey = NULL; | |
359 | ||
360 | switch (selector) { | |
361 | case DANETLS_SELECTOR_CERT: | |
348240c6 | 362 | if (!d2i_X509(&cert, &p, ilen) || p < data || |
919ba009 VD |
363 | dlen != (size_t)(p - data)) { |
364 | tlsa_free(t); | |
365 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
366 | return 0; | |
367 | } | |
368 | if (X509_get0_pubkey(cert) == NULL) { | |
369 | tlsa_free(t); | |
370 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_CERTIFICATE); | |
371 | return 0; | |
372 | } | |
373 | ||
374 | if ((DANETLS_USAGE_BIT(usage) & DANETLS_TA_MASK) == 0) { | |
375 | X509_free(cert); | |
376 | break; | |
377 | } | |
378 | ||
379 | /* | |
380 | * For usage DANE-TA(2), we support authentication via "2 0 0" TLSA | |
381 | * records that contain full certificates of trust-anchors that are | |
382 | * not present in the wire chain. For usage PKIX-TA(0), we augment | |
383 | * the chain with untrusted Full(0) certificates from DNS, in case | |
384 | * they are missing from the chain. | |
385 | */ | |
386 | if ((dane->certs == NULL && | |
387 | (dane->certs = sk_X509_new_null()) == NULL) || | |
388 | !sk_X509_push(dane->certs, cert)) { | |
389 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
390 | X509_free(cert); | |
391 | tlsa_free(t); | |
392 | return -1; | |
393 | } | |
394 | break; | |
395 | ||
396 | case DANETLS_SELECTOR_SPKI: | |
348240c6 | 397 | if (!d2i_PUBKEY(&pkey, &p, ilen) || p < data || |
919ba009 VD |
398 | dlen != (size_t)(p - data)) { |
399 | tlsa_free(t); | |
400 | SSLerr(SSL_F_DANE_TLSA_ADD, SSL_R_DANE_TLSA_BAD_PUBLIC_KEY); | |
401 | return 0; | |
402 | } | |
403 | ||
404 | /* | |
405 | * For usage DANE-TA(2), we support authentication via "2 1 0" TLSA | |
406 | * records that contain full bare keys of trust-anchors that are | |
407 | * not present in the wire chain. | |
408 | */ | |
409 | if (usage == DANETLS_USAGE_DANE_TA) | |
410 | t->spki = pkey; | |
411 | else | |
412 | EVP_PKEY_free(pkey); | |
413 | break; | |
414 | } | |
415 | } | |
416 | ||
417 | /*- | |
418 | * Find the right insertion point for the new record. | |
419 | * | |
420 | * See crypto/x509/x509_vfy.c. We sort DANE-EE(3) records first, so that | |
421 | * they can be processed first, as they require no chain building, and no | |
422 | * expiration or hostname checks. Because DANE-EE(3) is numerically | |
423 | * largest, this is accomplished via descending sort by "usage". | |
424 | * | |
425 | * We also sort in descending order by matching ordinal to simplify | |
426 | * the implementation of digest agility in the verification code. | |
427 | * | |
428 | * The choice of order for the selector is not significant, so we | |
429 | * use the same descending order for consistency. | |
430 | */ | |
9f6b22b8 VD |
431 | num = sk_danetls_record_num(dane->trecs); |
432 | for (i = 0; i < num; ++i) { | |
919ba009 | 433 | danetls_record *rec = sk_danetls_record_value(dane->trecs, i); |
9f6b22b8 | 434 | |
919ba009 VD |
435 | if (rec->usage > usage) |
436 | continue; | |
437 | if (rec->usage < usage) | |
438 | break; | |
439 | if (rec->selector > selector) | |
440 | continue; | |
441 | if (rec->selector < selector) | |
442 | break; | |
443 | if (dane->dctx->mdord[rec->mtype] > dane->dctx->mdord[mtype]) | |
444 | continue; | |
445 | break; | |
446 | } | |
447 | ||
448 | if (!sk_danetls_record_insert(dane->trecs, t, i)) { | |
449 | tlsa_free(t); | |
450 | SSLerr(SSL_F_DANE_TLSA_ADD, ERR_R_MALLOC_FAILURE); | |
451 | return -1; | |
452 | } | |
453 | dane->umask |= DANETLS_USAGE_BIT(usage); | |
454 | ||
455 | return 1; | |
456 | } | |
457 | ||
c8feba72 BK |
458 | /* |
459 | * Return 0 if there is only one version configured and it was disabled | |
460 | * at configure time. Return 1 otherwise. | |
461 | */ | |
462 | static int ssl_check_allowed_versions(int min_version, int max_version) | |
463 | { | |
464 | int minisdtls = 0, maxisdtls = 0; | |
465 | ||
466 | /* Figure out if we're doing DTLS versions or TLS versions */ | |
467 | if (min_version == DTLS1_BAD_VER | |
468 | || min_version >> 8 == DTLS1_VERSION_MAJOR) | |
469 | minisdtls = 1; | |
470 | if (max_version == DTLS1_BAD_VER | |
471 | || max_version >> 8 == DTLS1_VERSION_MAJOR) | |
472 | maxisdtls = 1; | |
473 | /* A wildcard version of 0 could be DTLS or TLS. */ | |
474 | if ((minisdtls && !maxisdtls && max_version != 0) | |
475 | || (maxisdtls && !minisdtls && min_version != 0)) { | |
476 | /* Mixing DTLS and TLS versions will lead to sadness; deny it. */ | |
477 | return 0; | |
478 | } | |
479 | ||
480 | if (minisdtls || maxisdtls) { | |
481 | /* Do DTLS version checks. */ | |
482 | if (min_version == 0) | |
483 | /* Ignore DTLS1_BAD_VER */ | |
484 | min_version = DTLS1_VERSION; | |
485 | if (max_version == 0) | |
486 | max_version = DTLS1_2_VERSION; | |
487 | #ifdef OPENSSL_NO_DTLS1_2 | |
488 | if (max_version == DTLS1_2_VERSION) | |
489 | max_version = DTLS1_VERSION; | |
490 | #endif | |
491 | #ifdef OPENSSL_NO_DTLS1 | |
492 | if (min_version == DTLS1_VERSION) | |
493 | min_version = DTLS1_2_VERSION; | |
494 | #endif | |
79b4444d DMSP |
495 | /* Done massaging versions; do the check. */ |
496 | if (0 | |
c8feba72 BK |
497 | #ifdef OPENSSL_NO_DTLS1 |
498 | || (DTLS_VERSION_GE(min_version, DTLS1_VERSION) | |
499 | && DTLS_VERSION_GE(DTLS1_VERSION, max_version)) | |
500 | #endif | |
501 | #ifdef OPENSSL_NO_DTLS1_2 | |
502 | || (DTLS_VERSION_GE(min_version, DTLS1_2_VERSION) | |
503 | && DTLS_VERSION_GE(DTLS1_2_VERSION, max_version)) | |
504 | #endif | |
505 | ) | |
506 | return 0; | |
507 | } else { | |
508 | /* Regular TLS version checks. */ | |
79b4444d DMSP |
509 | if (min_version == 0) |
510 | min_version = SSL3_VERSION; | |
511 | if (max_version == 0) | |
512 | max_version = TLS1_3_VERSION; | |
c8feba72 | 513 | #ifdef OPENSSL_NO_TLS1_3 |
79b4444d DMSP |
514 | if (max_version == TLS1_3_VERSION) |
515 | max_version = TLS1_2_VERSION; | |
c8feba72 BK |
516 | #endif |
517 | #ifdef OPENSSL_NO_TLS1_2 | |
79b4444d DMSP |
518 | if (max_version == TLS1_2_VERSION) |
519 | max_version = TLS1_1_VERSION; | |
c8feba72 BK |
520 | #endif |
521 | #ifdef OPENSSL_NO_TLS1_1 | |
79b4444d DMSP |
522 | if (max_version == TLS1_1_VERSION) |
523 | max_version = TLS1_VERSION; | |
c8feba72 BK |
524 | #endif |
525 | #ifdef OPENSSL_NO_TLS1 | |
79b4444d DMSP |
526 | if (max_version == TLS1_VERSION) |
527 | max_version = SSL3_VERSION; | |
c8feba72 BK |
528 | #endif |
529 | #ifdef OPENSSL_NO_SSL3 | |
79b4444d DMSP |
530 | if (min_version == SSL3_VERSION) |
531 | min_version = TLS1_VERSION; | |
c8feba72 BK |
532 | #endif |
533 | #ifdef OPENSSL_NO_TLS1 | |
79b4444d DMSP |
534 | if (min_version == TLS1_VERSION) |
535 | min_version = TLS1_1_VERSION; | |
c8feba72 BK |
536 | #endif |
537 | #ifdef OPENSSL_NO_TLS1_1 | |
79b4444d DMSP |
538 | if (min_version == TLS1_1_VERSION) |
539 | min_version = TLS1_2_VERSION; | |
c8feba72 BK |
540 | #endif |
541 | #ifdef OPENSSL_NO_TLS1_2 | |
79b4444d DMSP |
542 | if (min_version == TLS1_2_VERSION) |
543 | min_version = TLS1_3_VERSION; | |
c8feba72 | 544 | #endif |
79b4444d DMSP |
545 | /* Done massaging versions; do the check. */ |
546 | if (0 | |
c8feba72 BK |
547 | #ifdef OPENSSL_NO_SSL3 |
548 | || (min_version <= SSL3_VERSION && SSL3_VERSION <= max_version) | |
549 | #endif | |
550 | #ifdef OPENSSL_NO_TLS1 | |
551 | || (min_version <= TLS1_VERSION && TLS1_VERSION <= max_version) | |
552 | #endif | |
553 | #ifdef OPENSSL_NO_TLS1_1 | |
554 | || (min_version <= TLS1_1_VERSION && TLS1_1_VERSION <= max_version) | |
555 | #endif | |
556 | #ifdef OPENSSL_NO_TLS1_2 | |
557 | || (min_version <= TLS1_2_VERSION && TLS1_2_VERSION <= max_version) | |
558 | #endif | |
559 | #ifdef OPENSSL_NO_TLS1_3 | |
560 | || (min_version <= TLS1_3_VERSION && TLS1_3_VERSION <= max_version) | |
561 | #endif | |
562 | ) | |
563 | return 0; | |
564 | } | |
565 | return 1; | |
566 | } | |
567 | ||
d31fb0b5 RS |
568 | static void clear_ciphers(SSL *s) |
569 | { | |
570 | /* clear the current cipher */ | |
571 | ssl_clear_cipher_ctx(s); | |
572 | ssl_clear_hash_ctx(&s->read_hash); | |
573 | ssl_clear_hash_ctx(&s->write_hash); | |
574 | } | |
575 | ||
4f43d0e7 | 576 | int SSL_clear(SSL *s) |
0f113f3e | 577 | { |
0f113f3e MC |
578 | if (s->method == NULL) { |
579 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
a89325e4 | 580 | return 0; |
0f113f3e | 581 | } |
d02b48c6 | 582 | |
0f113f3e MC |
583 | if (ssl_clear_bad_session(s)) { |
584 | SSL_SESSION_free(s->session); | |
585 | s->session = NULL; | |
586 | } | |
9368f865 MC |
587 | SSL_SESSION_free(s->psksession); |
588 | s->psksession = NULL; | |
add8d0e9 MC |
589 | OPENSSL_free(s->psksession_id); |
590 | s->psksession_id = NULL; | |
591 | s->psksession_id_len = 0; | |
808d1601 | 592 | s->hello_retry_request = 0; |
36ff232c | 593 | s->sent_tickets = 0; |
d62bfb39 | 594 | |
0f113f3e MC |
595 | s->error = 0; |
596 | s->hit = 0; | |
597 | s->shutdown = 0; | |
d02b48c6 | 598 | |
0f113f3e MC |
599 | if (s->renegotiate) { |
600 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
601 | return 0; | |
602 | } | |
d02b48c6 | 603 | |
fe3a3291 | 604 | ossl_statem_clear(s); |
413c4f45 | 605 | |
0f113f3e MC |
606 | s->version = s->method->version; |
607 | s->client_version = s->version; | |
608 | s->rwstate = SSL_NOTHING; | |
d02b48c6 | 609 | |
25aaa98a RS |
610 | BUF_MEM_free(s->init_buf); |
611 | s->init_buf = NULL; | |
d31fb0b5 | 612 | clear_ciphers(s); |
0f113f3e | 613 | s->first_packet = 0; |
d02b48c6 | 614 | |
44c04a2e MC |
615 | s->key_update = SSL_KEY_UPDATE_NONE; |
616 | ||
88834998 TS |
617 | EVP_MD_CTX_free(s->pha_dgst); |
618 | s->pha_dgst = NULL; | |
619 | ||
919ba009 VD |
620 | /* Reset DANE verification result state */ |
621 | s->dane.mdpth = -1; | |
622 | s->dane.pdpth = -1; | |
623 | X509_free(s->dane.mcert); | |
624 | s->dane.mcert = NULL; | |
625 | s->dane.mtlsa = NULL; | |
626 | ||
627 | /* Clear the verification result peername */ | |
628 | X509_VERIFY_PARAM_move_peername(s->param, NULL); | |
629 | ||
0f113f3e MC |
630 | /* |
631 | * Check to see if we were changed into a different method, if so, revert | |
24252537 | 632 | * back. |
0f113f3e | 633 | */ |
24252537 | 634 | if (s->method != s->ctx->method) { |
0f113f3e MC |
635 | s->method->ssl_free(s); |
636 | s->method = s->ctx->method; | |
637 | if (!s->method->ssl_new(s)) | |
a89325e4 | 638 | return 0; |
b77f3ed1 MC |
639 | } else { |
640 | if (!s->method->ssl_clear(s)) | |
641 | return 0; | |
642 | } | |
33d23b87 | 643 | |
af9752e5 | 644 | RECORD_LAYER_clear(&s->rlayer); |
33d23b87 | 645 | |
a89325e4 | 646 | return 1; |
0f113f3e | 647 | } |
d02b48c6 | 648 | |
4f43d0e7 | 649 | /** Used to change an SSL_CTXs default SSL method type */ |
0f113f3e MC |
650 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
651 | { | |
652 | STACK_OF(SSL_CIPHER) *sk; | |
653 | ||
654 | ctx->method = meth; | |
655 | ||
2340ed27 BK |
656 | if (!SSL_CTX_set_ciphersuites(ctx, TLS_DEFAULT_CIPHERSUITES)) { |
657 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); | |
658 | return 0; | |
659 | } | |
f865b081 MC |
660 | sk = ssl_create_cipher_list(ctx->method, |
661 | ctx->tls13_ciphersuites, | |
662 | &(ctx->cipher_list), | |
0f113f3e MC |
663 | &(ctx->cipher_list_by_id), |
664 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
665 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
a230b26e | 666 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); |
26a7d938 | 667 | return 0; |
0f113f3e | 668 | } |
208fb891 | 669 | return 1; |
0f113f3e | 670 | } |
d02b48c6 | 671 | |
4f43d0e7 | 672 | SSL *SSL_new(SSL_CTX *ctx) |
0f113f3e MC |
673 | { |
674 | SSL *s; | |
675 | ||
676 | if (ctx == NULL) { | |
677 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
26a7d938 | 678 | return NULL; |
0f113f3e MC |
679 | } |
680 | if (ctx->method == NULL) { | |
681 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
26a7d938 | 682 | return NULL; |
0f113f3e MC |
683 | } |
684 | ||
b51bce94 | 685 | s = OPENSSL_zalloc(sizeof(*s)); |
0f113f3e MC |
686 | if (s == NULL) |
687 | goto err; | |
0f113f3e | 688 | |
e6b10c34 | 689 | s->references = 1; |
16203f7b | 690 | s->lock = CRYPTO_THREAD_lock_new(); |
e6b10c34 BE |
691 | if (s->lock == NULL) { |
692 | OPENSSL_free(s); | |
693 | s = NULL; | |
ae3947de | 694 | goto err; |
e6b10c34 | 695 | } |
ae3947de | 696 | |
c036e210 | 697 | RECORD_LAYER_init(&s->rlayer, s); |
28d59af8 | 698 | |
0f113f3e | 699 | s->options = ctx->options; |
5ae4ceb9 | 700 | s->dane.flags = ctx->dane.flags; |
7946ab33 KR |
701 | s->min_proto_version = ctx->min_proto_version; |
702 | s->max_proto_version = ctx->max_proto_version; | |
0f113f3e MC |
703 | s->mode = ctx->mode; |
704 | s->max_cert_list = ctx->max_cert_list; | |
3fc8d856 | 705 | s->max_early_data = ctx->max_early_data; |
4e8548e8 | 706 | s->recv_max_early_data = ctx->recv_max_early_data; |
9d0a8bb7 | 707 | s->num_tickets = ctx->num_tickets; |
e97be718 | 708 | s->pha_enabled = ctx->pha_enabled; |
0f113f3e | 709 | |
f865b081 MC |
710 | /* Shallow copy of the ciphersuites stack */ |
711 | s->tls13_ciphersuites = sk_SSL_CIPHER_dup(ctx->tls13_ciphersuites); | |
712 | if (s->tls13_ciphersuites == NULL) | |
713 | goto err; | |
714 | ||
2c382349 KR |
715 | /* |
716 | * Earlier library versions used to copy the pointer to the CERT, not | |
717 | * its contents; only when setting new parameters for the per-SSL | |
718 | * copy, ssl_cert_new would be called (and the direct reference to | |
719 | * the per-SSL_CTX settings would be lost, but those still were | |
720 | * indirectly accessed for various purposes, and for that reason they | |
721 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
722 | * SSL_CTX's CERT after having duplicated it once. | |
723 | */ | |
724 | s->cert = ssl_cert_dup(ctx->cert); | |
725 | if (s->cert == NULL) | |
726 | goto err; | |
0f113f3e | 727 | |
52e1d7b1 | 728 | RECORD_LAYER_set_read_ahead(&s->rlayer, ctx->read_ahead); |
0f113f3e MC |
729 | s->msg_callback = ctx->msg_callback; |
730 | s->msg_callback_arg = ctx->msg_callback_arg; | |
731 | s->verify_mode = ctx->verify_mode; | |
732 | s->not_resumable_session_cb = ctx->not_resumable_session_cb; | |
c649d10d TS |
733 | s->record_padding_cb = ctx->record_padding_cb; |
734 | s->record_padding_arg = ctx->record_padding_arg; | |
735 | s->block_padding = ctx->block_padding; | |
0f113f3e | 736 | s->sid_ctx_length = ctx->sid_ctx_length; |
cbe29648 | 737 | if (!ossl_assert(s->sid_ctx_length <= sizeof(s->sid_ctx))) |
380a522f | 738 | goto err; |
0f113f3e MC |
739 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); |
740 | s->verify_callback = ctx->default_verify_callback; | |
741 | s->generate_session_id = ctx->generate_session_id; | |
742 | ||
743 | s->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 744 | if (s->param == NULL) |
0f113f3e MC |
745 | goto err; |
746 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
0f113f3e | 747 | s->quiet_shutdown = ctx->quiet_shutdown; |
cf72c757 F |
748 | |
749 | s->ext.max_fragment_len_mode = ctx->ext.max_fragment_len_mode; | |
0f113f3e | 750 | s->max_send_fragment = ctx->max_send_fragment; |
d102d9df MC |
751 | s->split_send_fragment = ctx->split_send_fragment; |
752 | s->max_pipelines = ctx->max_pipelines; | |
94777c9c MC |
753 | if (s->max_pipelines > 1) |
754 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
dad78fb1 MC |
755 | if (ctx->default_read_buf_len > 0) |
756 | SSL_set_default_read_buffer_len(s, ctx->default_read_buf_len); | |
bf21446a | 757 | |
16203f7b | 758 | SSL_CTX_up_ref(ctx); |
0f113f3e | 759 | s->ctx = ctx; |
aff8c126 RS |
760 | s->ext.debug_cb = 0; |
761 | s->ext.debug_arg = NULL; | |
762 | s->ext.ticket_expected = 0; | |
763 | s->ext.status_type = ctx->ext.status_type; | |
764 | s->ext.status_expected = 0; | |
765 | s->ext.ocsp.ids = NULL; | |
766 | s->ext.ocsp.exts = NULL; | |
767 | s->ext.ocsp.resp = NULL; | |
768 | s->ext.ocsp.resp_len = 0; | |
16203f7b | 769 | SSL_CTX_up_ref(ctx); |
222da979 | 770 | s->session_ctx = ctx; |
a230b26e | 771 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
772 | if (ctx->ext.ecpointformats) { |
773 | s->ext.ecpointformats = | |
774 | OPENSSL_memdup(ctx->ext.ecpointformats, | |
775 | ctx->ext.ecpointformats_len); | |
776 | if (!s->ext.ecpointformats) | |
0f113f3e | 777 | goto err; |
aff8c126 RS |
778 | s->ext.ecpointformats_len = |
779 | ctx->ext.ecpointformats_len; | |
780 | } | |
781 | if (ctx->ext.supportedgroups) { | |
782 | s->ext.supportedgroups = | |
783 | OPENSSL_memdup(ctx->ext.supportedgroups, | |
9e84a42d | 784 | ctx->ext.supportedgroups_len |
b92d7b62 | 785 | * sizeof(*ctx->ext.supportedgroups)); |
aff8c126 | 786 | if (!s->ext.supportedgroups) |
0f113f3e | 787 | goto err; |
aff8c126 | 788 | s->ext.supportedgroups_len = ctx->ext.supportedgroups_len; |
0f113f3e | 789 | } |
a230b26e EK |
790 | #endif |
791 | #ifndef OPENSSL_NO_NEXTPROTONEG | |
aff8c126 | 792 | s->ext.npn = NULL; |
a230b26e | 793 | #endif |
6f017a8f | 794 | |
aff8c126 RS |
795 | if (s->ctx->ext.alpn) { |
796 | s->ext.alpn = OPENSSL_malloc(s->ctx->ext.alpn_len); | |
797 | if (s->ext.alpn == NULL) | |
0f113f3e | 798 | goto err; |
aff8c126 RS |
799 | memcpy(s->ext.alpn, s->ctx->ext.alpn, s->ctx->ext.alpn_len); |
800 | s->ext.alpn_len = s->ctx->ext.alpn_len; | |
0f113f3e | 801 | } |
d02b48c6 | 802 | |
696178ed | 803 | s->verified_chain = NULL; |
0f113f3e | 804 | s->verify_result = X509_V_OK; |
d02b48c6 | 805 | |
a974e64a MC |
806 | s->default_passwd_callback = ctx->default_passwd_callback; |
807 | s->default_passwd_callback_userdata = ctx->default_passwd_callback_userdata; | |
808 | ||
0f113f3e | 809 | s->method = ctx->method; |
d02b48c6 | 810 | |
44c04a2e MC |
811 | s->key_update = SSL_KEY_UPDATE_NONE; |
812 | ||
c9598459 MC |
813 | s->allow_early_data_cb = ctx->allow_early_data_cb; |
814 | s->allow_early_data_cb_data = ctx->allow_early_data_cb_data; | |
815 | ||
0f113f3e MC |
816 | if (!s->method->ssl_new(s)) |
817 | goto err; | |
d02b48c6 | 818 | |
0f113f3e | 819 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; |
bf21446a | 820 | |
61986d32 | 821 | if (!SSL_clear(s)) |
69f68237 | 822 | goto err; |
58964a49 | 823 | |
25a807bc F |
824 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data)) |
825 | goto err; | |
58964a49 | 826 | |
ddac1974 | 827 | #ifndef OPENSSL_NO_PSK |
0f113f3e MC |
828 | s->psk_client_callback = ctx->psk_client_callback; |
829 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 | 830 | #endif |
f46184bd MC |
831 | s->psk_find_session_cb = ctx->psk_find_session_cb; |
832 | s->psk_use_session_cb = ctx->psk_use_session_cb; | |
ddac1974 | 833 | |
9f5a87fd PY |
834 | s->async_cb = ctx->async_cb; |
835 | s->async_cb_arg = ctx->async_cb_arg; | |
836 | ||
07bbc92c MC |
837 | s->job = NULL; |
838 | ||
ed29e82a RP |
839 | #ifndef OPENSSL_NO_CT |
840 | if (!SSL_set_ct_validation_callback(s, ctx->ct_validation_callback, | |
a230b26e | 841 | ctx->ct_validation_callback_arg)) |
ed29e82a RP |
842 | goto err; |
843 | #endif | |
844 | ||
16203f7b | 845 | return s; |
0f113f3e | 846 | err: |
62adbcee | 847 | SSL_free(s); |
0f113f3e | 848 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); |
16203f7b | 849 | return NULL; |
0f113f3e | 850 | } |
d02b48c6 | 851 | |
e417070c RS |
852 | int SSL_is_dtls(const SSL *s) |
853 | { | |
854 | return SSL_IS_DTLS(s) ? 1 : 0; | |
855 | } | |
856 | ||
c5ebfcab | 857 | int SSL_up_ref(SSL *s) |
a18a31e4 | 858 | { |
16203f7b | 859 | int i; |
c5ebfcab | 860 | |
2f545ae4 | 861 | if (CRYPTO_UP_REF(&s->references, &i, s->lock) <= 0) |
c5ebfcab F |
862 | return 0; |
863 | ||
864 | REF_PRINT_COUNT("SSL", s); | |
865 | REF_ASSERT_ISNT(i < 2); | |
866 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
867 | } |
868 | ||
0f113f3e MC |
869 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
870 | unsigned int sid_ctx_len) | |
871 | { | |
cbe29648 | 872 | if (sid_ctx_len > sizeof(ctx->sid_ctx)) { |
0f113f3e MC |
873 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, |
874 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
875 | return 0; | |
876 | } | |
877 | ctx->sid_ctx_length = sid_ctx_len; | |
878 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
879 | |
880 | return 1; | |
0f113f3e | 881 | } |
4eb77b26 | 882 | |
0f113f3e MC |
883 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
884 | unsigned int sid_ctx_len) | |
885 | { | |
886 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
887 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
888 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
889 | return 0; | |
890 | } | |
891 | ssl->sid_ctx_length = sid_ctx_len; | |
892 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
893 | |
894 | return 1; | |
0f113f3e | 895 | } |
b4cadc6e | 896 | |
dc644fe2 | 897 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
0f113f3e | 898 | { |
16203f7b | 899 | CRYPTO_THREAD_write_lock(ctx->lock); |
0f113f3e | 900 | ctx->generate_session_id = cb; |
16203f7b | 901 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
902 | return 1; |
903 | } | |
dc644fe2 GT |
904 | |
905 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
0f113f3e | 906 | { |
16203f7b | 907 | CRYPTO_THREAD_write_lock(ssl->lock); |
0f113f3e | 908 | ssl->generate_session_id = cb; |
16203f7b | 909 | CRYPTO_THREAD_unlock(ssl->lock); |
0f113f3e MC |
910 | return 1; |
911 | } | |
dc644fe2 | 912 | |
f85c9904 | 913 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
0f113f3e MC |
914 | unsigned int id_len) |
915 | { | |
916 | /* | |
917 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
69687aa8 | 918 | * we can "construct" a session to give us the desired check - i.e. to |
0f113f3e MC |
919 | * find if there's a session in the hash table that would conflict with |
920 | * any new session built out of this id/id_len and the ssl_version in use | |
921 | * by this SSL. | |
922 | */ | |
923 | SSL_SESSION r, *p; | |
924 | ||
cbe29648 | 925 | if (id_len > sizeof(r.session_id)) |
0f113f3e MC |
926 | return 0; |
927 | ||
928 | r.ssl_version = ssl->version; | |
929 | r.session_id_length = id_len; | |
930 | memcpy(r.session_id, id, id_len); | |
931 | ||
e2bb9b9b TS |
932 | CRYPTO_THREAD_read_lock(ssl->session_ctx->lock); |
933 | p = lh_SSL_SESSION_retrieve(ssl->session_ctx->sessions, &r); | |
934 | CRYPTO_THREAD_unlock(ssl->session_ctx->lock); | |
0f113f3e MC |
935 | return (p != NULL); |
936 | } | |
dc644fe2 | 937 | |
bb7cd4e3 | 938 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
0f113f3e MC |
939 | { |
940 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
941 | } | |
bb7cd4e3 DSH |
942 | |
943 | int SSL_set_purpose(SSL *s, int purpose) | |
0f113f3e MC |
944 | { |
945 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
946 | } | |
926a56bf | 947 | |
bb7cd4e3 | 948 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
0f113f3e MC |
949 | { |
950 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
951 | } | |
bb7cd4e3 DSH |
952 | |
953 | int SSL_set_trust(SSL *s, int trust) | |
0f113f3e MC |
954 | { |
955 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
956 | } | |
bb7cd4e3 | 957 | |
919ba009 VD |
958 | int SSL_set1_host(SSL *s, const char *hostname) |
959 | { | |
960 | return X509_VERIFY_PARAM_set1_host(s->param, hostname, 0); | |
961 | } | |
962 | ||
963 | int SSL_add1_host(SSL *s, const char *hostname) | |
964 | { | |
965 | return X509_VERIFY_PARAM_add1_host(s->param, hostname, 0); | |
966 | } | |
967 | ||
968 | void SSL_set_hostflags(SSL *s, unsigned int flags) | |
969 | { | |
970 | X509_VERIFY_PARAM_set_hostflags(s->param, flags); | |
971 | } | |
972 | ||
4588cb44 | 973 | const char *SSL_get0_peername(SSL *s) |
919ba009 VD |
974 | { |
975 | return X509_VERIFY_PARAM_get0_peername(s->param); | |
976 | } | |
977 | ||
978 | int SSL_CTX_dane_enable(SSL_CTX *ctx) | |
979 | { | |
980 | return dane_ctx_enable(&ctx->dane); | |
981 | } | |
982 | ||
5ae4ceb9 VD |
983 | unsigned long SSL_CTX_dane_set_flags(SSL_CTX *ctx, unsigned long flags) |
984 | { | |
985 | unsigned long orig = ctx->dane.flags; | |
986 | ||
987 | ctx->dane.flags |= flags; | |
988 | return orig; | |
989 | } | |
990 | ||
991 | unsigned long SSL_CTX_dane_clear_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 | ||
919ba009 VD |
999 | int SSL_dane_enable(SSL *s, const char *basedomain) |
1000 | { | |
b9aec69a | 1001 | SSL_DANE *dane = &s->dane; |
919ba009 VD |
1002 | |
1003 | if (s->ctx->dane.mdmax == 0) { | |
1004 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_CONTEXT_NOT_DANE_ENABLED); | |
1005 | return 0; | |
1006 | } | |
1007 | if (dane->trecs != NULL) { | |
1008 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_DANE_ALREADY_ENABLED); | |
1009 | return 0; | |
1010 | } | |
1011 | ||
8d887efa VD |
1012 | /* |
1013 | * Default SNI name. This rejects empty names, while set1_host below | |
1014 | * accepts them and disables host name checks. To avoid side-effects with | |
1015 | * invalid input, set the SNI name first. | |
1016 | */ | |
aff8c126 | 1017 | if (s->ext.hostname == NULL) { |
dccd20d1 | 1018 | if (!SSL_set_tlsext_host_name(s, basedomain)) { |
8d887efa | 1019 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); |
dccd20d1 | 1020 | return -1; |
8d887efa VD |
1021 | } |
1022 | } | |
1023 | ||
919ba009 VD |
1024 | /* Primary RFC6125 reference identifier */ |
1025 | if (!X509_VERIFY_PARAM_set1_host(s->param, basedomain, 0)) { | |
1026 | SSLerr(SSL_F_SSL_DANE_ENABLE, SSL_R_ERROR_SETTING_TLSA_BASE_DOMAIN); | |
1027 | return -1; | |
1028 | } | |
1029 | ||
919ba009 VD |
1030 | dane->mdpth = -1; |
1031 | dane->pdpth = -1; | |
1032 | dane->dctx = &s->ctx->dane; | |
1033 | dane->trecs = sk_danetls_record_new_null(); | |
1034 | ||
1035 | if (dane->trecs == NULL) { | |
1036 | SSLerr(SSL_F_SSL_DANE_ENABLE, ERR_R_MALLOC_FAILURE); | |
1037 | return -1; | |
1038 | } | |
1039 | return 1; | |
1040 | } | |
1041 | ||
5ae4ceb9 VD |
1042 | unsigned long SSL_dane_set_flags(SSL *ssl, unsigned long flags) |
1043 | { | |
1044 | unsigned long orig = ssl->dane.flags; | |
1045 | ||
1046 | ssl->dane.flags |= flags; | |
1047 | return orig; | |
1048 | } | |
1049 | ||
1050 | unsigned long SSL_dane_clear_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 | ||
919ba009 VD |
1058 | int SSL_get0_dane_authority(SSL *s, X509 **mcert, EVP_PKEY **mspki) |
1059 | { | |
b9aec69a | 1060 | SSL_DANE *dane = &s->dane; |
919ba009 | 1061 | |
c0a445a9 | 1062 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
1063 | return -1; |
1064 | if (dane->mtlsa) { | |
1065 | if (mcert) | |
1066 | *mcert = dane->mcert; | |
1067 | if (mspki) | |
1068 | *mspki = (dane->mcert == NULL) ? dane->mtlsa->spki : NULL; | |
1069 | } | |
1070 | return dane->mdpth; | |
1071 | } | |
1072 | ||
1073 | int SSL_get0_dane_tlsa(SSL *s, uint8_t *usage, uint8_t *selector, | |
1074 | uint8_t *mtype, unsigned const char **data, size_t *dlen) | |
1075 | { | |
b9aec69a | 1076 | SSL_DANE *dane = &s->dane; |
919ba009 | 1077 | |
c0a445a9 | 1078 | if (!DANETLS_ENABLED(dane) || s->verify_result != X509_V_OK) |
919ba009 VD |
1079 | return -1; |
1080 | if (dane->mtlsa) { | |
1081 | if (usage) | |
1082 | *usage = dane->mtlsa->usage; | |
1083 | if (selector) | |
1084 | *selector = dane->mtlsa->selector; | |
1085 | if (mtype) | |
1086 | *mtype = dane->mtlsa->mtype; | |
1087 | if (data) | |
1088 | *data = dane->mtlsa->data; | |
1089 | if (dlen) | |
1090 | *dlen = dane->mtlsa->dlen; | |
1091 | } | |
1092 | return dane->mdpth; | |
1093 | } | |
1094 | ||
b9aec69a | 1095 | SSL_DANE *SSL_get0_dane(SSL *s) |
919ba009 VD |
1096 | { |
1097 | return &s->dane; | |
1098 | } | |
1099 | ||
1100 | int SSL_dane_tlsa_add(SSL *s, uint8_t usage, uint8_t selector, | |
a41a6120 | 1101 | uint8_t mtype, unsigned const char *data, size_t dlen) |
919ba009 VD |
1102 | { |
1103 | return dane_tlsa_add(&s->dane, usage, selector, mtype, data, dlen); | |
1104 | } | |
1105 | ||
a230b26e EK |
1106 | int SSL_CTX_dane_mtype_set(SSL_CTX *ctx, const EVP_MD *md, uint8_t mtype, |
1107 | uint8_t ord) | |
919ba009 VD |
1108 | { |
1109 | return dane_mtype_set(&ctx->dane, md, mtype, ord); | |
1110 | } | |
1111 | ||
ccf11751 | 1112 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
0f113f3e MC |
1113 | { |
1114 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
1115 | } | |
ccf11751 DSH |
1116 | |
1117 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
0f113f3e MC |
1118 | { |
1119 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
1120 | } | |
ccf11751 | 1121 | |
7af31968 | 1122 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
0f113f3e MC |
1123 | { |
1124 | return ctx->param; | |
1125 | } | |
7af31968 DSH |
1126 | |
1127 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
0f113f3e MC |
1128 | { |
1129 | return ssl->param; | |
1130 | } | |
7af31968 | 1131 | |
a5ee80b9 | 1132 | void SSL_certs_clear(SSL *s) |
0f113f3e MC |
1133 | { |
1134 | ssl_cert_clear_certs(s->cert); | |
1135 | } | |
a5ee80b9 | 1136 | |
4f43d0e7 | 1137 | void SSL_free(SSL *s) |
0f113f3e MC |
1138 | { |
1139 | int i; | |
58964a49 | 1140 | |
e6e9170d RS |
1141 | if (s == NULL) |
1142 | return; | |
2f545ae4 | 1143 | CRYPTO_DOWN_REF(&s->references, &i, s->lock); |
f3f1cf84 | 1144 | REF_PRINT_COUNT("SSL", s); |
0f113f3e MC |
1145 | if (i > 0) |
1146 | return; | |
f3f1cf84 | 1147 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 1148 | |
222561fe | 1149 | X509_VERIFY_PARAM_free(s->param); |
919ba009 | 1150 | dane_final(&s->dane); |
0f113f3e MC |
1151 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
1152 | ||
50ec7505 BP |
1153 | RECORD_LAYER_release(&s->rlayer); |
1154 | ||
b77f3ed1 | 1155 | /* Ignore return value */ |
2e7dc7cd MC |
1156 | ssl_free_wbio_buffer(s); |
1157 | ||
65e2d672 | 1158 | BIO_free_all(s->wbio); |
50ec7505 | 1159 | s->wbio = NULL; |
325cfa85 | 1160 | BIO_free_all(s->rbio); |
50ec7505 | 1161 | s->rbio = NULL; |
0f113f3e | 1162 | |
25aaa98a | 1163 | BUF_MEM_free(s->init_buf); |
0f113f3e MC |
1164 | |
1165 | /* add extra stuff */ | |
25aaa98a RS |
1166 | sk_SSL_CIPHER_free(s->cipher_list); |
1167 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
f865b081 | 1168 | sk_SSL_CIPHER_free(s->tls13_ciphersuites); |
0f113f3e MC |
1169 | |
1170 | /* Make the next call work :-) */ | |
1171 | if (s->session != NULL) { | |
1172 | ssl_clear_bad_session(s); | |
1173 | SSL_SESSION_free(s->session); | |
1174 | } | |
9368f865 | 1175 | SSL_SESSION_free(s->psksession); |
add8d0e9 | 1176 | OPENSSL_free(s->psksession_id); |
0f113f3e | 1177 | |
d31fb0b5 | 1178 | clear_ciphers(s); |
d02b48c6 | 1179 | |
e0e920b1 | 1180 | ssl_cert_free(s->cert); |
0f113f3e | 1181 | /* Free up if allocated */ |
d02b48c6 | 1182 | |
aff8c126 | 1183 | OPENSSL_free(s->ext.hostname); |
222da979 | 1184 | SSL_CTX_free(s->session_ctx); |
e481f9b9 | 1185 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
1186 | OPENSSL_free(s->ext.ecpointformats); |
1187 | OPENSSL_free(s->ext.supportedgroups); | |
a230b26e | 1188 | #endif /* OPENSSL_NO_EC */ |
aff8c126 | 1189 | sk_X509_EXTENSION_pop_free(s->ext.ocsp.exts, X509_EXTENSION_free); |
3e41ac35 | 1190 | #ifndef OPENSSL_NO_OCSP |
aff8c126 | 1191 | sk_OCSP_RESPID_pop_free(s->ext.ocsp.ids, OCSP_RESPID_free); |
3e41ac35 | 1192 | #endif |
ed29e82a RP |
1193 | #ifndef OPENSSL_NO_CT |
1194 | SCT_LIST_free(s->scts); | |
aff8c126 | 1195 | OPENSSL_free(s->ext.scts); |
ed29e82a | 1196 | #endif |
aff8c126 RS |
1197 | OPENSSL_free(s->ext.ocsp.resp); |
1198 | OPENSSL_free(s->ext.alpn); | |
cfef5027 | 1199 | OPENSSL_free(s->ext.tls13_cookie); |
6b1bb98f | 1200 | OPENSSL_free(s->clienthello); |
9d75dce3 TS |
1201 | OPENSSL_free(s->pha_context); |
1202 | EVP_MD_CTX_free(s->pha_dgst); | |
0f113f3e | 1203 | |
fa7c2637 | 1204 | sk_X509_NAME_pop_free(s->ca_names, X509_NAME_free); |
98732979 | 1205 | sk_X509_NAME_pop_free(s->client_ca_names, X509_NAME_free); |
0f113f3e | 1206 | |
696178ed DSH |
1207 | sk_X509_pop_free(s->verified_chain, X509_free); |
1208 | ||
0f113f3e MC |
1209 | if (s->method != NULL) |
1210 | s->method->ssl_free(s); | |
1211 | ||
e0e920b1 | 1212 | SSL_CTX_free(s->ctx); |
7c3908dd | 1213 | |
ff75a257 MC |
1214 | ASYNC_WAIT_CTX_free(s->waitctx); |
1215 | ||
e481f9b9 | 1216 | #if !defined(OPENSSL_NO_NEXTPROTONEG) |
aff8c126 | 1217 | OPENSSL_free(s->ext.npn); |
ee2ffc27 BL |
1218 | #endif |
1219 | ||
e783bae2 | 1220 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 1221 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); |
0f113f3e MC |
1222 | #endif |
1223 | ||
16203f7b AG |
1224 | CRYPTO_THREAD_lock_free(s->lock); |
1225 | ||
0f113f3e MC |
1226 | OPENSSL_free(s); |
1227 | } | |
1228 | ||
65e2d672 | 1229 | void SSL_set0_rbio(SSL *s, BIO *rbio) |
3ffbe008 | 1230 | { |
65e2d672 | 1231 | BIO_free_all(s->rbio); |
3ffbe008 MC |
1232 | s->rbio = rbio; |
1233 | } | |
1234 | ||
65e2d672 | 1235 | void SSL_set0_wbio(SSL *s, BIO *wbio) |
0f113f3e MC |
1236 | { |
1237 | /* | |
1238 | * If the output buffering BIO is still in place, remove it | |
1239 | */ | |
2e7dc7cd MC |
1240 | if (s->bbio != NULL) |
1241 | s->wbio = BIO_pop(s->wbio); | |
1242 | ||
65e2d672 | 1243 | BIO_free_all(s->wbio); |
0f113f3e | 1244 | s->wbio = wbio; |
2e7dc7cd MC |
1245 | |
1246 | /* Re-attach |bbio| to the new |wbio|. */ | |
1247 | if (s->bbio != NULL) | |
1248 | s->wbio = BIO_push(s->bbio, s->wbio); | |
0f113f3e | 1249 | } |
d02b48c6 | 1250 | |
3ffbe008 MC |
1251 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) |
1252 | { | |
65e2d672 MC |
1253 | /* |
1254 | * For historical reasons, this function has many different cases in | |
1255 | * ownership handling. | |
1256 | */ | |
1257 | ||
1258 | /* If nothing has changed, do nothing */ | |
1259 | if (rbio == SSL_get_rbio(s) && wbio == SSL_get_wbio(s)) | |
1260 | return; | |
1261 | ||
1262 | /* | |
1263 | * If the two arguments are equal then one fewer reference is granted by the | |
1264 | * caller than we want to take | |
1265 | */ | |
1266 | if (rbio != NULL && rbio == wbio) | |
1267 | BIO_up_ref(rbio); | |
1268 | ||
1269 | /* | |
1270 | * If only the wbio is changed only adopt one reference. | |
1271 | */ | |
1272 | if (rbio == SSL_get_rbio(s)) { | |
1273 | SSL_set0_wbio(s, wbio); | |
1274 | return; | |
1275 | } | |
1276 | /* | |
1277 | * There is an asymmetry here for historical reasons. If only the rbio is | |
1278 | * changed AND the rbio and wbio were originally different, then we only | |
1279 | * adopt one reference. | |
1280 | */ | |
1281 | if (wbio == SSL_get_wbio(s) && SSL_get_rbio(s) != SSL_get_wbio(s)) { | |
1282 | SSL_set0_rbio(s, rbio); | |
1283 | return; | |
1284 | } | |
1285 | ||
1286 | /* Otherwise, adopt both references. */ | |
1287 | SSL_set0_rbio(s, rbio); | |
1288 | SSL_set0_wbio(s, wbio); | |
3ffbe008 MC |
1289 | } |
1290 | ||
0821bcd4 | 1291 | BIO *SSL_get_rbio(const SSL *s) |
0f113f3e | 1292 | { |
2e7dc7cd | 1293 | return s->rbio; |
0f113f3e | 1294 | } |
d02b48c6 | 1295 | |
0821bcd4 | 1296 | BIO *SSL_get_wbio(const SSL *s) |
0f113f3e | 1297 | { |
2e7dc7cd MC |
1298 | if (s->bbio != NULL) { |
1299 | /* | |
1300 | * If |bbio| is active, the true caller-configured BIO is its | |
1301 | * |next_bio|. | |
1302 | */ | |
1303 | return BIO_next(s->bbio); | |
1304 | } | |
1305 | return s->wbio; | |
0f113f3e | 1306 | } |
d02b48c6 | 1307 | |
0821bcd4 | 1308 | int SSL_get_fd(const SSL *s) |
0f113f3e | 1309 | { |
2e7dc7cd | 1310 | return SSL_get_rfd(s); |
0f113f3e | 1311 | } |
24cbf3ef | 1312 | |
0821bcd4 | 1313 | int SSL_get_rfd(const SSL *s) |
0f113f3e MC |
1314 | { |
1315 | int ret = -1; | |
1316 | BIO *b, *r; | |
1317 | ||
1318 | b = SSL_get_rbio(s); | |
1319 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
1320 | if (r != NULL) | |
1321 | BIO_get_fd(r, &ret); | |
26a7d938 | 1322 | return ret; |
0f113f3e | 1323 | } |
d02b48c6 | 1324 | |
0821bcd4 | 1325 | int SSL_get_wfd(const SSL *s) |
0f113f3e MC |
1326 | { |
1327 | int ret = -1; | |
1328 | BIO *b, *r; | |
1329 | ||
1330 | b = SSL_get_wbio(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 | } |
24cbf3ef | 1336 | |
bc36ee62 | 1337 | #ifndef OPENSSL_NO_SOCK |
0f113f3e MC |
1338 | int SSL_set_fd(SSL *s, int fd) |
1339 | { | |
1340 | int ret = 0; | |
1341 | BIO *bio = NULL; | |
1342 | ||
1343 | bio = BIO_new(BIO_s_socket()); | |
1344 | ||
1345 | if (bio == NULL) { | |
1346 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
1347 | goto err; | |
1348 | } | |
1349 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
1350 | SSL_set_bio(s, bio, bio); | |
50ec7505 BP |
1351 | #ifndef OPENSSL_NO_KTLS |
1352 | /* | |
1353 | * The new socket is created successfully regardless of ktls_enable. | |
1354 | * ktls_enable doesn't change any functionality of the socket, except | |
1355 | * changing the setsockopt to enable the processing of ktls_start. | |
1356 | * Thus, it is not a problem to call it for non-TLS sockets. | |
1357 | */ | |
1358 | ktls_enable(fd); | |
1359 | #endif /* OPENSSL_NO_KTLS */ | |
0f113f3e MC |
1360 | ret = 1; |
1361 | err: | |
26a7d938 | 1362 | return ret; |
0f113f3e | 1363 | } |
d02b48c6 | 1364 | |
0f113f3e MC |
1365 | int SSL_set_wfd(SSL *s, int fd) |
1366 | { | |
2e7dc7cd | 1367 | BIO *rbio = SSL_get_rbio(s); |
0f113f3e | 1368 | |
2e7dc7cd MC |
1369 | if (rbio == NULL || BIO_method_type(rbio) != BIO_TYPE_SOCKET |
1370 | || (int)BIO_get_fd(rbio, NULL) != fd) { | |
1371 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1372 | |
1373 | if (bio == NULL) { | |
1374 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1375 | return 0; |
0f113f3e MC |
1376 | } |
1377 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1378 | SSL_set0_wbio(s, bio); |
50ec7505 BP |
1379 | #ifndef OPENSSL_NO_KTLS |
1380 | /* | |
1381 | * The new socket is created successfully regardless of ktls_enable. | |
1382 | * ktls_enable doesn't change any functionality of the socket, except | |
1383 | * changing the setsockopt to enable the processing of ktls_start. | |
1384 | * Thus, it is not a problem to call it for non-TLS sockets. | |
1385 | */ | |
1386 | ktls_enable(fd); | |
1387 | #endif /* OPENSSL_NO_KTLS */ | |
2e7dc7cd | 1388 | } else { |
65e2d672 MC |
1389 | BIO_up_ref(rbio); |
1390 | SSL_set0_wbio(s, rbio); | |
2e7dc7cd MC |
1391 | } |
1392 | return 1; | |
0f113f3e MC |
1393 | } |
1394 | ||
1395 | int SSL_set_rfd(SSL *s, int fd) | |
1396 | { | |
2e7dc7cd | 1397 | BIO *wbio = SSL_get_wbio(s); |
0f113f3e | 1398 | |
2e7dc7cd MC |
1399 | if (wbio == NULL || BIO_method_type(wbio) != BIO_TYPE_SOCKET |
1400 | || ((int)BIO_get_fd(wbio, NULL) != fd)) { | |
1401 | BIO *bio = BIO_new(BIO_s_socket()); | |
0f113f3e MC |
1402 | |
1403 | if (bio == NULL) { | |
1404 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
2e7dc7cd | 1405 | return 0; |
0f113f3e MC |
1406 | } |
1407 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
65e2d672 | 1408 | SSL_set0_rbio(s, bio); |
2e7dc7cd | 1409 | } else { |
65e2d672 MC |
1410 | BIO_up_ref(wbio); |
1411 | SSL_set0_rbio(s, wbio); | |
2e7dc7cd MC |
1412 | } |
1413 | ||
1414 | return 1; | |
0f113f3e MC |
1415 | } |
1416 | #endif | |
ca03109c BM |
1417 | |
1418 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 1419 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1420 | { |
1421 | size_t ret = 0; | |
1422 | ||
1423 | if (s->s3 != NULL) { | |
1424 | ret = s->s3->tmp.finish_md_len; | |
1425 | if (count > ret) | |
1426 | count = ret; | |
1427 | memcpy(buf, s->s3->tmp.finish_md, count); | |
1428 | } | |
1429 | return ret; | |
1430 | } | |
ca03109c BM |
1431 | |
1432 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 1433 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
0f113f3e MC |
1434 | { |
1435 | size_t ret = 0; | |
ca03109c | 1436 | |
0f113f3e MC |
1437 | if (s->s3 != NULL) { |
1438 | ret = s->s3->tmp.peer_finish_md_len; | |
1439 | if (count > ret) | |
1440 | count = ret; | |
1441 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
1442 | } | |
1443 | return ret; | |
1444 | } | |
ca03109c | 1445 | |
0821bcd4 | 1446 | int SSL_get_verify_mode(const SSL *s) |
0f113f3e | 1447 | { |
26a7d938 | 1448 | return s->verify_mode; |
0f113f3e | 1449 | } |
d02b48c6 | 1450 | |
0821bcd4 | 1451 | int SSL_get_verify_depth(const SSL *s) |
0f113f3e MC |
1452 | { |
1453 | return X509_VERIFY_PARAM_get_depth(s->param); | |
1454 | } | |
7f89714e | 1455 | |
0f113f3e | 1456 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
26a7d938 | 1457 | return s->verify_callback; |
0f113f3e | 1458 | } |
d02b48c6 | 1459 | |
0821bcd4 | 1460 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
0f113f3e | 1461 | { |
26a7d938 | 1462 | return ctx->verify_mode; |
0f113f3e | 1463 | } |
d02b48c6 | 1464 | |
0821bcd4 | 1465 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
0f113f3e MC |
1466 | { |
1467 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
1468 | } | |
1469 | ||
1470 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
26a7d938 | 1471 | return ctx->default_verify_callback; |
0f113f3e MC |
1472 | } |
1473 | ||
1474 | void SSL_set_verify(SSL *s, int mode, | |
1475 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
1476 | { | |
1477 | s->verify_mode = mode; | |
1478 | if (callback != NULL) | |
1479 | s->verify_callback = callback; | |
1480 | } | |
1481 | ||
1482 | void SSL_set_verify_depth(SSL *s, int depth) | |
1483 | { | |
1484 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
1485 | } | |
1486 | ||
1487 | void SSL_set_read_ahead(SSL *s, int yes) | |
1488 | { | |
52e1d7b1 | 1489 | RECORD_LAYER_set_read_ahead(&s->rlayer, yes); |
0f113f3e | 1490 | } |
d02b48c6 | 1491 | |
0821bcd4 | 1492 | int SSL_get_read_ahead(const SSL *s) |
0f113f3e | 1493 | { |
52e1d7b1 | 1494 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 1495 | } |
d02b48c6 | 1496 | |
0821bcd4 | 1497 | int SSL_pending(const SSL *s) |
0f113f3e | 1498 | { |
8b0e934a MC |
1499 | size_t pending = s->method->ssl_pending(s); |
1500 | ||
0f113f3e MC |
1501 | /* |
1502 | * SSL_pending cannot work properly if read-ahead is enabled | |
1503 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
1504 | * impossible to fix since SSL_pending cannot report errors that may be | |
1505 | * observed while scanning the new data. (Note that SSL_pending() is | |
1506 | * often used as a boolean value, so we'd better not return -1.) | |
8b0e934a MC |
1507 | * |
1508 | * SSL_pending also cannot work properly if the value >INT_MAX. In that case | |
1509 | * we just return INT_MAX. | |
0f113f3e | 1510 | */ |
348240c6 | 1511 | return pending < INT_MAX ? (int)pending : INT_MAX; |
0f113f3e | 1512 | } |
d02b48c6 | 1513 | |
49580f25 MC |
1514 | int SSL_has_pending(const SSL *s) |
1515 | { | |
1516 | /* | |
1517 | * Similar to SSL_pending() but returns a 1 to indicate that we have | |
1518 | * unprocessed data available or 0 otherwise (as opposed to the number of | |
1519 | * bytes available). Unlike SSL_pending() this will take into account | |
1520 | * read_ahead data. A 1 return simply indicates that we have unprocessed | |
1521 | * data. That data may not result in any application data, or we may fail | |
1522 | * to parse the records for some reason. | |
1523 | */ | |
b8c49611 | 1524 | if (RECORD_LAYER_processed_read_pending(&s->rlayer)) |
49580f25 MC |
1525 | return 1; |
1526 | ||
1527 | return RECORD_LAYER_read_pending(&s->rlayer); | |
1528 | } | |
1529 | ||
0821bcd4 | 1530 | X509 *SSL_get_peer_certificate(const SSL *s) |
0f113f3e MC |
1531 | { |
1532 | X509 *r; | |
d02b48c6 | 1533 | |
0f113f3e MC |
1534 | if ((s == NULL) || (s->session == NULL)) |
1535 | r = NULL; | |
1536 | else | |
1537 | r = s->session->peer; | |
d02b48c6 | 1538 | |
0f113f3e | 1539 | if (r == NULL) |
26a7d938 | 1540 | return r; |
d02b48c6 | 1541 | |
05f0fb9f | 1542 | X509_up_ref(r); |
0f113f3e | 1543 | |
26a7d938 | 1544 | return r; |
0f113f3e | 1545 | } |
d02b48c6 | 1546 | |
0821bcd4 | 1547 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
0f113f3e MC |
1548 | { |
1549 | STACK_OF(X509) *r; | |
1550 | ||
c34b0f99 | 1551 | if ((s == NULL) || (s->session == NULL)) |
0f113f3e MC |
1552 | r = NULL; |
1553 | else | |
c34b0f99 | 1554 | r = s->session->peer_chain; |
0f113f3e MC |
1555 | |
1556 | /* | |
1557 | * If we are a client, cert_chain includes the peer's own certificate; if | |
1558 | * we are a server, it does not. | |
1559 | */ | |
1560 | ||
26a7d938 | 1561 | return r; |
0f113f3e MC |
1562 | } |
1563 | ||
1564 | /* | |
1565 | * Now in theory, since the calling process own 't' it should be safe to | |
1566 | * modify. We need to be able to read f without being hassled | |
1567 | */ | |
17dd65e6 | 1568 | int SSL_copy_session_id(SSL *t, const SSL *f) |
0f113f3e | 1569 | { |
16203f7b | 1570 | int i; |
0f113f3e | 1571 | /* Do we need to to SSL locking? */ |
61986d32 | 1572 | if (!SSL_set_session(t, SSL_get_session(f))) { |
17dd65e6 | 1573 | return 0; |
69f68237 | 1574 | } |
0f113f3e MC |
1575 | |
1576 | /* | |
87d9cafa | 1577 | * what if we are setup for one protocol version but want to talk another |
0f113f3e MC |
1578 | */ |
1579 | if (t->method != f->method) { | |
919ba009 VD |
1580 | t->method->ssl_free(t); |
1581 | t->method = f->method; | |
1582 | if (t->method->ssl_new(t) == 0) | |
1583 | return 0; | |
0f113f3e MC |
1584 | } |
1585 | ||
2f545ae4 | 1586 | CRYPTO_UP_REF(&f->cert->references, &i, f->cert->lock); |
24a0d393 KR |
1587 | ssl_cert_free(t->cert); |
1588 | t->cert = f->cert; | |
348240c6 | 1589 | if (!SSL_set_session_id_context(t, f->sid_ctx, (int)f->sid_ctx_length)) { |
17dd65e6 | 1590 | return 0; |
69f68237 | 1591 | } |
17dd65e6 MC |
1592 | |
1593 | return 1; | |
0f113f3e | 1594 | } |
d02b48c6 | 1595 | |
58964a49 | 1596 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 1597 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
0f113f3e | 1598 | { |
a230b26e EK |
1599 | if ((ctx == NULL) || (ctx->cert->key->x509 == NULL)) { |
1600 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
26a7d938 | 1601 | return 0; |
0f113f3e MC |
1602 | } |
1603 | if (ctx->cert->key->privatekey == NULL) { | |
a230b26e | 1604 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); |
26a7d938 | 1605 | return 0; |
0f113f3e | 1606 | } |
26a7d938 K |
1607 | return X509_check_private_key |
1608 | (ctx->cert->key->x509, ctx->cert->key->privatekey); | |
0f113f3e | 1609 | } |
d02b48c6 | 1610 | |
58964a49 | 1611 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 1612 | int SSL_check_private_key(const SSL *ssl) |
0f113f3e MC |
1613 | { |
1614 | if (ssl == NULL) { | |
1615 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
26a7d938 | 1616 | return 0; |
0f113f3e | 1617 | } |
0f113f3e MC |
1618 | if (ssl->cert->key->x509 == NULL) { |
1619 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
26a7d938 | 1620 | return 0; |
0f113f3e MC |
1621 | } |
1622 | if (ssl->cert->key->privatekey == NULL) { | |
1623 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
26a7d938 | 1624 | return 0; |
0f113f3e | 1625 | } |
26a7d938 K |
1626 | return X509_check_private_key(ssl->cert->key->x509, |
1627 | ssl->cert->key->privatekey); | |
0f113f3e | 1628 | } |
d02b48c6 | 1629 | |
07bbc92c MC |
1630 | int SSL_waiting_for_async(SSL *s) |
1631 | { | |
e8aa8b6c | 1632 | if (s->job) |
82676094 MC |
1633 | return 1; |
1634 | ||
07bbc92c MC |
1635 | return 0; |
1636 | } | |
1637 | ||
ff75a257 | 1638 | int SSL_get_all_async_fds(SSL *s, OSSL_ASYNC_FD *fds, size_t *numfds) |
f4da39d2 | 1639 | { |
ff75a257 MC |
1640 | ASYNC_WAIT_CTX *ctx = s->waitctx; |
1641 | ||
1642 | if (ctx == NULL) | |
1643 | return 0; | |
1644 | return ASYNC_WAIT_CTX_get_all_fds(ctx, fds, numfds); | |
1645 | } | |
f4da39d2 | 1646 | |
ff75a257 MC |
1647 | int SSL_get_changed_async_fds(SSL *s, OSSL_ASYNC_FD *addfd, size_t *numaddfds, |
1648 | OSSL_ASYNC_FD *delfd, size_t *numdelfds) | |
1649 | { | |
1650 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1651 | ||
1652 | if (ctx == NULL) | |
1653 | return 0; | |
1654 | return ASYNC_WAIT_CTX_get_changed_fds(ctx, addfd, numaddfds, delfd, | |
1655 | numdelfds); | |
f4da39d2 MC |
1656 | } |
1657 | ||
9f5a87fd PY |
1658 | int SSL_CTX_set_async_callback(SSL_CTX *ctx, SSL_async_callback_fn callback) |
1659 | { | |
1660 | ctx->async_cb = callback; | |
1661 | return 1; | |
1662 | } | |
1663 | ||
1664 | int SSL_CTX_set_async_callback_arg(SSL_CTX *ctx, void *arg) | |
1665 | { | |
1666 | ctx->async_cb_arg = arg; | |
1667 | return 1; | |
1668 | } | |
1669 | ||
1670 | int SSL_set_async_callback(SSL *s, SSL_async_callback_fn callback) | |
1671 | { | |
1672 | s->async_cb = callback; | |
1673 | return 1; | |
1674 | } | |
1675 | ||
1676 | int SSL_set_async_callback_arg(SSL *s, void *arg) | |
1677 | { | |
1678 | s->async_cb_arg = arg; | |
1679 | return 1; | |
1680 | } | |
1681 | ||
1682 | int SSL_get_async_status(SSL *s, int *status) | |
1683 | { | |
1684 | ASYNC_WAIT_CTX *ctx = s->waitctx; | |
1685 | ||
1686 | if (ctx == NULL) | |
1687 | return 0; | |
1688 | *status = ASYNC_WAIT_CTX_get_status(ctx); | |
1689 | return 1; | |
1690 | } | |
1691 | ||
4f43d0e7 | 1692 | int SSL_accept(SSL *s) |
0f113f3e | 1693 | { |
c4c32155 | 1694 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1695 | /* Not properly initialized yet */ |
1696 | SSL_set_accept_state(s); | |
07bbc92c | 1697 | } |
add2f5ca MC |
1698 | |
1699 | return SSL_do_handshake(s); | |
0f113f3e | 1700 | } |
d02b48c6 | 1701 | |
4f43d0e7 | 1702 | int SSL_connect(SSL *s) |
0f113f3e | 1703 | { |
c4c32155 | 1704 | if (s->handshake_func == NULL) { |
0f113f3e MC |
1705 | /* Not properly initialized yet */ |
1706 | SSL_set_connect_state(s); | |
add2f5ca | 1707 | } |
b31b04d9 | 1708 | |
add2f5ca | 1709 | return SSL_do_handshake(s); |
0f113f3e | 1710 | } |
d02b48c6 | 1711 | |
0821bcd4 | 1712 | long SSL_get_default_timeout(const SSL *s) |
0f113f3e | 1713 | { |
26a7d938 | 1714 | return s->method->get_timeout(); |
0f113f3e MC |
1715 | } |
1716 | ||
9f5a87fd PY |
1717 | static int ssl_async_wait_ctx_cb(void *arg) |
1718 | { | |
1719 | SSL *s = (SSL *)arg; | |
1720 | ||
1721 | return s->async_cb(s, s->async_cb_arg); | |
1722 | } | |
1723 | ||
7fecbf6f | 1724 | static int ssl_start_async_job(SSL *s, struct ssl_async_args *args, |
a230b26e EK |
1725 | int (*func) (void *)) |
1726 | { | |
add2f5ca | 1727 | int ret; |
ff75a257 MC |
1728 | if (s->waitctx == NULL) { |
1729 | s->waitctx = ASYNC_WAIT_CTX_new(); | |
1730 | if (s->waitctx == NULL) | |
1731 | return -1; | |
9f5a87fd PY |
1732 | if (s->async_cb != NULL |
1733 | && !ASYNC_WAIT_CTX_set_callback | |
1734 | (s->waitctx, ssl_async_wait_ctx_cb, s)) | |
1735 | return -1; | |
ff75a257 | 1736 | } |
e8aa8b6c | 1737 | switch (ASYNC_start_job(&s->job, s->waitctx, &ret, func, args, |
a230b26e | 1738 | sizeof(struct ssl_async_args))) { |
add2f5ca MC |
1739 | case ASYNC_ERR: |
1740 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1741 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, SSL_R_FAILED_TO_INIT_ASYNC); |
add2f5ca MC |
1742 | return -1; |
1743 | case ASYNC_PAUSE: | |
1744 | s->rwstate = SSL_ASYNC_PAUSED; | |
1745 | return -1; | |
fc7f190c MC |
1746 | case ASYNC_NO_JOBS: |
1747 | s->rwstate = SSL_ASYNC_NO_JOBS; | |
1748 | return -1; | |
add2f5ca MC |
1749 | case ASYNC_FINISH: |
1750 | s->job = NULL; | |
1751 | return ret; | |
1752 | default: | |
1753 | s->rwstate = SSL_NOTHING; | |
7fecbf6f | 1754 | SSLerr(SSL_F_SSL_START_ASYNC_JOB, ERR_R_INTERNAL_ERROR); |
add2f5ca MC |
1755 | /* Shouldn't happen */ |
1756 | return -1; | |
1757 | } | |
1758 | } | |
07bbc92c | 1759 | |
add2f5ca | 1760 | static int ssl_io_intern(void *vargs) |
07bbc92c MC |
1761 | { |
1762 | struct ssl_async_args *args; | |
1763 | SSL *s; | |
1764 | void *buf; | |
348240c6 | 1765 | size_t num; |
07bbc92c MC |
1766 | |
1767 | args = (struct ssl_async_args *)vargs; | |
1768 | s = args->s; | |
1769 | buf = args->buf; | |
1770 | num = args->num; | |
ec447924 MC |
1771 | switch (args->type) { |
1772 | case READFUNC: | |
7ee8627f | 1773 | return args->f.func_read(s, buf, num, &s->asyncrw); |
ec447924 | 1774 | case WRITEFUNC: |
7ee8627f | 1775 | return args->f.func_write(s, buf, num, &s->asyncrw); |
ec447924 MC |
1776 | case OTHERFUNC: |
1777 | return args->f.func_other(s); | |
1778 | } | |
1779 | return -1; | |
07bbc92c MC |
1780 | } |
1781 | ||
4ee7d3f9 | 1782 | int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1783 | { |
c4c32155 | 1784 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1785 | SSLerr(SSL_F_SSL_READ_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1786 | return -1; |
1787 | } | |
1788 | ||
1789 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1790 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 | 1791 | return 0; |
0f113f3e | 1792 | } |
07bbc92c | 1793 | |
564547e4 MC |
1794 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
1795 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY) { | |
0a5ece5b MC |
1796 | SSLerr(SSL_F_SSL_READ_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1797 | return 0; | |
1798 | } | |
564547e4 MC |
1799 | /* |
1800 | * If we are a client and haven't received the ServerHello etc then we | |
1801 | * better do that | |
1802 | */ | |
1803 | ossl_statem_check_finish_init(s, 0); | |
0a5ece5b | 1804 | |
e8aa8b6c | 1805 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1806 | struct ssl_async_args args; |
eda75751 | 1807 | int ret; |
add2f5ca MC |
1808 | |
1809 | args.s = s; | |
1810 | args.buf = buf; | |
1811 | args.num = num; | |
ec447924 MC |
1812 | args.type = READFUNC; |
1813 | args.f.func_read = s->method->ssl_read; | |
add2f5ca | 1814 | |
eda75751 | 1815 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1816 | *readbytes = s->asyncrw; |
eda75751 | 1817 | return ret; |
07bbc92c | 1818 | } else { |
54105ddd | 1819 | return s->method->ssl_read(s, buf, num, readbytes); |
07bbc92c | 1820 | } |
0f113f3e MC |
1821 | } |
1822 | ||
4ee7d3f9 | 1823 | int SSL_read(SSL *s, void *buf, int num) |
eda75751 MC |
1824 | { |
1825 | int ret; | |
54105ddd | 1826 | size_t readbytes; |
eda75751 MC |
1827 | |
1828 | if (num < 0) { | |
4ee7d3f9 | 1829 | SSLerr(SSL_F_SSL_READ, SSL_R_BAD_LENGTH); |
eda75751 MC |
1830 | return -1; |
1831 | } | |
1832 | ||
4ee7d3f9 | 1833 | ret = ssl_read_internal(s, buf, (size_t)num, &readbytes); |
eda75751 MC |
1834 | |
1835 | /* | |
1836 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1837 | * <= INT_MAX | |
1838 | */ | |
1839 | if (ret > 0) | |
54105ddd | 1840 | ret = (int)readbytes; |
eda75751 MC |
1841 | |
1842 | return ret; | |
1843 | } | |
1844 | ||
4ee7d3f9 KR |
1845 | int SSL_read_ex(SSL *s, void *buf, size_t num, size_t *readbytes) |
1846 | { | |
1847 | int ret = ssl_read_internal(s, buf, num, readbytes); | |
1848 | ||
1849 | if (ret < 0) | |
1850 | ret = 0; | |
1851 | return ret; | |
1852 | } | |
1853 | ||
f533fbd4 | 1854 | int SSL_read_early_data(SSL *s, void *buf, size_t num, size_t *readbytes) |
d781d247 MC |
1855 | { |
1856 | int ret; | |
1857 | ||
1858 | if (!s->server) { | |
f533fbd4 MC |
1859 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1860 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1861 | } |
1862 | ||
d781d247 MC |
1863 | switch (s->early_data_state) { |
1864 | case SSL_EARLY_DATA_NONE: | |
1865 | if (!SSL_in_before(s)) { | |
f533fbd4 MC |
1866 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, |
1867 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
1868 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1869 | } |
1870 | /* fall through */ | |
1871 | ||
1872 | case SSL_EARLY_DATA_ACCEPT_RETRY: | |
1873 | s->early_data_state = SSL_EARLY_DATA_ACCEPTING; | |
1874 | ret = SSL_accept(s); | |
1875 | if (ret <= 0) { | |
1876 | /* NBIO or error */ | |
1877 | s->early_data_state = SSL_EARLY_DATA_ACCEPT_RETRY; | |
f533fbd4 | 1878 | return SSL_READ_EARLY_DATA_ERROR; |
d781d247 MC |
1879 | } |
1880 | /* fall through */ | |
1881 | ||
1882 | case SSL_EARLY_DATA_READ_RETRY: | |
1883 | if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) { | |
1884 | s->early_data_state = SSL_EARLY_DATA_READING; | |
1885 | ret = SSL_read_ex(s, buf, num, readbytes); | |
1886 | /* | |
ef6c191b MC |
1887 | * State machine will update early_data_state to |
1888 | * SSL_EARLY_DATA_FINISHED_READING if we get an EndOfEarlyData | |
1889 | * message | |
d781d247 MC |
1890 | */ |
1891 | if (ret > 0 || (ret <= 0 && s->early_data_state | |
1892 | != SSL_EARLY_DATA_FINISHED_READING)) { | |
1893 | s->early_data_state = SSL_EARLY_DATA_READ_RETRY; | |
f533fbd4 MC |
1894 | return ret > 0 ? SSL_READ_EARLY_DATA_SUCCESS |
1895 | : SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1896 | } |
1897 | } else { | |
1898 | s->early_data_state = SSL_EARLY_DATA_FINISHED_READING; | |
1899 | } | |
1900 | *readbytes = 0; | |
f533fbd4 | 1901 | return SSL_READ_EARLY_DATA_FINISH; |
d781d247 MC |
1902 | |
1903 | default: | |
f533fbd4 MC |
1904 | SSLerr(SSL_F_SSL_READ_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
1905 | return SSL_READ_EARLY_DATA_ERROR; | |
d781d247 MC |
1906 | } |
1907 | } | |
1908 | ||
f5b519c4 | 1909 | int SSL_get_early_data_status(const SSL *s) |
1ea4d09a MC |
1910 | { |
1911 | return s->ext.early_data; | |
1912 | } | |
1913 | ||
4ee7d3f9 | 1914 | static int ssl_peek_internal(SSL *s, void *buf, size_t num, size_t *readbytes) |
0f113f3e | 1915 | { |
c4c32155 | 1916 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1917 | SSLerr(SSL_F_SSL_PEEK_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1918 | return -1; |
1919 | } | |
1920 | ||
1921 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
4ee7d3f9 | 1922 | return 0; |
0f113f3e | 1923 | } |
e8aa8b6c | 1924 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca | 1925 | struct ssl_async_args args; |
eda75751 | 1926 | int ret; |
0f113f3e | 1927 | |
add2f5ca MC |
1928 | args.s = s; |
1929 | args.buf = buf; | |
1930 | args.num = num; | |
ec447924 MC |
1931 | args.type = READFUNC; |
1932 | args.f.func_read = s->method->ssl_peek; | |
07bbc92c | 1933 | |
eda75751 | 1934 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
54105ddd | 1935 | *readbytes = s->asyncrw; |
eda75751 | 1936 | return ret; |
add2f5ca | 1937 | } else { |
54105ddd | 1938 | return s->method->ssl_peek(s, buf, num, readbytes); |
add2f5ca | 1939 | } |
07bbc92c MC |
1940 | } |
1941 | ||
4ee7d3f9 | 1942 | int SSL_peek(SSL *s, void *buf, int num) |
7ee8627f MC |
1943 | { |
1944 | int ret; | |
4ee7d3f9 | 1945 | size_t readbytes; |
7ee8627f MC |
1946 | |
1947 | if (num < 0) { | |
4ee7d3f9 | 1948 | SSLerr(SSL_F_SSL_PEEK, SSL_R_BAD_LENGTH); |
7ee8627f MC |
1949 | return -1; |
1950 | } | |
1951 | ||
4ee7d3f9 | 1952 | ret = ssl_peek_internal(s, buf, (size_t)num, &readbytes); |
7ee8627f MC |
1953 | |
1954 | /* | |
1955 | * The cast is safe here because ret should be <= INT_MAX because num is | |
1956 | * <= INT_MAX | |
1957 | */ | |
1958 | if (ret > 0) | |
4ee7d3f9 | 1959 | ret = (int)readbytes; |
7ee8627f MC |
1960 | |
1961 | return ret; | |
1962 | } | |
1963 | ||
4ee7d3f9 KR |
1964 | |
1965 | int SSL_peek_ex(SSL *s, void *buf, size_t num, size_t *readbytes) | |
1966 | { | |
1967 | int ret = ssl_peek_internal(s, buf, num, readbytes); | |
1968 | ||
1969 | if (ret < 0) | |
1970 | ret = 0; | |
1971 | return ret; | |
1972 | } | |
1973 | ||
1974 | int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written) | |
0f113f3e | 1975 | { |
c4c32155 | 1976 | if (s->handshake_func == NULL) { |
4ee7d3f9 | 1977 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_UNINITIALIZED); |
0f113f3e MC |
1978 | return -1; |
1979 | } | |
1980 | ||
1981 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1982 | s->rwstate = SSL_NOTHING; | |
4ee7d3f9 KR |
1983 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, SSL_R_PROTOCOL_IS_SHUTDOWN); |
1984 | return -1; | |
0f113f3e | 1985 | } |
07bbc92c | 1986 | |
ef6c191b | 1987 | if (s->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY |
09f28874 MC |
1988 | || s->early_data_state == SSL_EARLY_DATA_ACCEPT_RETRY |
1989 | || s->early_data_state == SSL_EARLY_DATA_READ_RETRY) { | |
0a5ece5b | 1990 | SSLerr(SSL_F_SSL_WRITE_INTERNAL, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 | 1991 | return 0; |
0a5ece5b | 1992 | } |
564547e4 MC |
1993 | /* If we are a client and haven't sent the Finished we better do that */ |
1994 | ossl_statem_check_finish_init(s, 1); | |
49e7fe12 | 1995 | |
e8aa8b6c | 1996 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
7ee8627f | 1997 | int ret; |
add2f5ca MC |
1998 | struct ssl_async_args args; |
1999 | ||
2000 | args.s = s; | |
2001 | args.buf = (void *)buf; | |
2002 | args.num = num; | |
ec447924 MC |
2003 | args.type = WRITEFUNC; |
2004 | args.f.func_write = s->method->ssl_write; | |
add2f5ca | 2005 | |
7ee8627f MC |
2006 | ret = ssl_start_async_job(s, &args, ssl_io_intern); |
2007 | *written = s->asyncrw; | |
2008 | return ret; | |
07bbc92c | 2009 | } else { |
7ee8627f | 2010 | return s->method->ssl_write(s, buf, num, written); |
07bbc92c | 2011 | } |
0f113f3e | 2012 | } |
d02b48c6 | 2013 | |
4ee7d3f9 KR |
2014 | int SSL_write(SSL *s, const void *buf, int num) |
2015 | { | |
2016 | int ret; | |
2017 | size_t written; | |
2018 | ||
2019 | if (num < 0) { | |
2020 | SSLerr(SSL_F_SSL_WRITE, SSL_R_BAD_LENGTH); | |
2021 | return -1; | |
2022 | } | |
2023 | ||
2024 | ret = ssl_write_internal(s, buf, (size_t)num, &written); | |
2025 | ||
2026 | /* | |
2027 | * The cast is safe here because ret should be <= INT_MAX because num is | |
2028 | * <= INT_MAX | |
2029 | */ | |
2030 | if (ret > 0) | |
2031 | ret = (int)written; | |
2032 | ||
2033 | return ret; | |
2034 | } | |
2035 | ||
2036 | int SSL_write_ex(SSL *s, const void *buf, size_t num, size_t *written) | |
2037 | { | |
2038 | int ret = ssl_write_internal(s, buf, num, written); | |
2039 | ||
2040 | if (ret < 0) | |
2041 | ret = 0; | |
2042 | return ret; | |
2043 | } | |
2044 | ||
0665b4ed | 2045 | int SSL_write_early_data(SSL *s, const void *buf, size_t num, size_t *written) |
49e7fe12 | 2046 | { |
a0cb628b | 2047 | int ret, early_data_state; |
2a8db717 | 2048 | size_t writtmp; |
f7414b08 | 2049 | uint32_t partialwrite; |
49e7fe12 | 2050 | |
49e7fe12 MC |
2051 | switch (s->early_data_state) { |
2052 | case SSL_EARLY_DATA_NONE: | |
09f28874 MC |
2053 | if (s->server |
2054 | || !SSL_in_before(s) | |
add8d0e9 MC |
2055 | || ((s->session == NULL || s->session->ext.max_early_data == 0) |
2056 | && (s->psk_use_session_cb == NULL))) { | |
09f28874 MC |
2057 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, |
2058 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
49e7fe12 MC |
2059 | return 0; |
2060 | } | |
2061 | /* fall through */ | |
2062 | ||
2063 | case SSL_EARLY_DATA_CONNECT_RETRY: | |
2064 | s->early_data_state = SSL_EARLY_DATA_CONNECTING; | |
2065 | ret = SSL_connect(s); | |
2066 | if (ret <= 0) { | |
2067 | /* NBIO or error */ | |
2068 | s->early_data_state = SSL_EARLY_DATA_CONNECT_RETRY; | |
2069 | return 0; | |
2070 | } | |
2071 | /* fall through */ | |
2072 | ||
2073 | case SSL_EARLY_DATA_WRITE_RETRY: | |
2074 | s->early_data_state = SSL_EARLY_DATA_WRITING; | |
f7414b08 MC |
2075 | /* |
2076 | * We disable partial write for early data because we don't keep track | |
2077 | * of how many bytes we've written between the SSL_write_ex() call and | |
2078 | * the flush if the flush needs to be retried) | |
2079 | */ | |
2080 | partialwrite = s->mode & SSL_MODE_ENABLE_PARTIAL_WRITE; | |
2081 | s->mode &= ~SSL_MODE_ENABLE_PARTIAL_WRITE; | |
2a8db717 | 2082 | ret = SSL_write_ex(s, buf, num, &writtmp); |
f7414b08 | 2083 | s->mode |= partialwrite; |
2a8db717 MC |
2084 | if (!ret) { |
2085 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; | |
2086 | return ret; | |
2087 | } | |
2088 | s->early_data_state = SSL_EARLY_DATA_WRITE_FLUSH; | |
2089 | /* fall through */ | |
2090 | ||
2091 | case SSL_EARLY_DATA_WRITE_FLUSH: | |
2092 | /* The buffering BIO is still in place so we need to flush it */ | |
2093 | if (statem_flush(s) != 1) | |
2094 | return 0; | |
2a8db717 | 2095 | *written = num; |
49e7fe12 | 2096 | s->early_data_state = SSL_EARLY_DATA_WRITE_RETRY; |
2a8db717 | 2097 | return 1; |
49e7fe12 | 2098 | |
116d0da5 | 2099 | case SSL_EARLY_DATA_FINISHED_READING: |
a0cb628b MC |
2100 | case SSL_EARLY_DATA_READ_RETRY: |
2101 | early_data_state = s->early_data_state; | |
09f28874 MC |
2102 | /* We are a server writing to an unauthenticated client */ |
2103 | s->early_data_state = SSL_EARLY_DATA_UNAUTH_WRITING; | |
2104 | ret = SSL_write_ex(s, buf, num, written); | |
5fe37157 MC |
2105 | /* The buffering BIO is still in place */ |
2106 | if (ret) | |
2107 | (void)BIO_flush(s->wbio); | |
bbea9f2c | 2108 | s->early_data_state = early_data_state; |
09f28874 MC |
2109 | return ret; |
2110 | ||
49e7fe12 | 2111 | default: |
09f28874 | 2112 | SSLerr(SSL_F_SSL_WRITE_EARLY_DATA, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); |
49e7fe12 MC |
2113 | return 0; |
2114 | } | |
2115 | } | |
2116 | ||
4f43d0e7 | 2117 | int SSL_shutdown(SSL *s) |
0f113f3e MC |
2118 | { |
2119 | /* | |
2120 | * Note that this function behaves differently from what one might | |
2121 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
2122 | * calling it once is usually not enough, even if blocking I/O is used | |
2123 | * (see ssl3_shutdown). | |
2124 | */ | |
2125 | ||
c4c32155 | 2126 | if (s->handshake_func == NULL) { |
0f113f3e MC |
2127 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); |
2128 | return -1; | |
2129 | } | |
2130 | ||
64f9f406 | 2131 | if (!SSL_in_init(s)) { |
e8aa8b6c | 2132 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
64f9f406 | 2133 | struct ssl_async_args args; |
ec447924 | 2134 | |
64f9f406 MC |
2135 | args.s = s; |
2136 | args.type = OTHERFUNC; | |
2137 | args.f.func_other = s->method->ssl_shutdown; | |
ec447924 | 2138 | |
64f9f406 MC |
2139 | return ssl_start_async_job(s, &args, ssl_io_intern); |
2140 | } else { | |
2141 | return s->method->ssl_shutdown(s); | |
2142 | } | |
ec447924 | 2143 | } else { |
64f9f406 MC |
2144 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_SHUTDOWN_WHILE_IN_INIT); |
2145 | return -1; | |
ec447924 | 2146 | } |
0f113f3e | 2147 | } |
d02b48c6 | 2148 | |
4fbfe86a | 2149 | int SSL_key_update(SSL *s, int updatetype) |
44c04a2e | 2150 | { |
f14afcaa | 2151 | /* |
a9998e2f | 2152 | * TODO(TLS1.3): How will applications know whether TLSv1.3 has been |
f14afcaa MC |
2153 | * negotiated, and that it is appropriate to call SSL_key_update() instead |
2154 | * of SSL_renegotiate(). | |
2155 | */ | |
44c04a2e MC |
2156 | if (!SSL_IS_TLS13(s)) { |
2157 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_WRONG_SSL_VERSION); | |
2158 | return 0; | |
2159 | } | |
2160 | ||
2161 | if (updatetype != SSL_KEY_UPDATE_NOT_REQUESTED | |
2162 | && updatetype != SSL_KEY_UPDATE_REQUESTED) { | |
2163 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_INVALID_KEY_UPDATE_TYPE); | |
2164 | return 0; | |
2165 | } | |
2166 | ||
2167 | if (!SSL_is_init_finished(s)) { | |
2168 | SSLerr(SSL_F_SSL_KEY_UPDATE, SSL_R_STILL_IN_INIT); | |
2169 | return 0; | |
2170 | } | |
2171 | ||
2172 | ossl_statem_set_in_init(s, 1); | |
44c04a2e | 2173 | s->key_update = updatetype; |
44c04a2e MC |
2174 | return 1; |
2175 | } | |
2176 | ||
4fbfe86a | 2177 | int SSL_get_key_update_type(SSL *s) |
53d1d07d MC |
2178 | { |
2179 | return s->key_update; | |
2180 | } | |
2181 | ||
4f43d0e7 | 2182 | int SSL_renegotiate(SSL *s) |
0f113f3e | 2183 | { |
44c04a2e MC |
2184 | if (SSL_IS_TLS13(s)) { |
2185 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2186 | return 0; |
44c04a2e | 2187 | } |
cda6b998 | 2188 | |
db0f35dd TS |
2189 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2190 | SSLerr(SSL_F_SSL_RENEGOTIATE, SSL_R_NO_RENEGOTIATION); | |
2191 | return 0; | |
2192 | } | |
44959ee4 | 2193 | |
db0f35dd | 2194 | s->renegotiate = 1; |
0f113f3e | 2195 | s->new_session = 1; |
44959ee4 | 2196 | |
26a7d938 | 2197 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2198 | } |
d02b48c6 | 2199 | |
44959ee4 | 2200 | int SSL_renegotiate_abbreviated(SSL *s) |
0f113f3e | 2201 | { |
db0f35dd TS |
2202 | if (SSL_IS_TLS13(s)) { |
2203 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_WRONG_SSL_VERSION); | |
2c0980d2 | 2204 | return 0; |
db0f35dd | 2205 | } |
cda6b998 | 2206 | |
db0f35dd TS |
2207 | if ((s->options & SSL_OP_NO_RENEGOTIATION)) { |
2208 | SSLerr(SSL_F_SSL_RENEGOTIATE_ABBREVIATED, SSL_R_NO_RENEGOTIATION); | |
2209 | return 0; | |
2210 | } | |
c519e89f | 2211 | |
db0f35dd | 2212 | s->renegotiate = 1; |
0f113f3e | 2213 | s->new_session = 0; |
c519e89f | 2214 | |
26a7d938 | 2215 | return s->method->ssl_renegotiate(s); |
0f113f3e | 2216 | } |
44959ee4 | 2217 | |
6b0e9fac | 2218 | int SSL_renegotiate_pending(SSL *s) |
0f113f3e MC |
2219 | { |
2220 | /* | |
2221 | * becomes true when negotiation is requested; false again once a | |
2222 | * handshake has finished | |
2223 | */ | |
2224 | return (s->renegotiate != 0); | |
2225 | } | |
2226 | ||
2227 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
2228 | { | |
2229 | long l; | |
2230 | ||
2231 | switch (cmd) { | |
2232 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2233 | return RECORD_LAYER_get_read_ahead(&s->rlayer); |
0f113f3e | 2234 | case SSL_CTRL_SET_READ_AHEAD: |
52e1d7b1 MC |
2235 | l = RECORD_LAYER_get_read_ahead(&s->rlayer); |
2236 | RECORD_LAYER_set_read_ahead(&s->rlayer, larg); | |
26a7d938 | 2237 | return l; |
0f113f3e MC |
2238 | |
2239 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2240 | s->msg_callback_arg = parg; | |
2241 | return 1; | |
2242 | ||
0f113f3e MC |
2243 | case SSL_CTRL_MODE: |
2244 | return (s->mode |= larg); | |
2245 | case SSL_CTRL_CLEAR_MODE: | |
2246 | return (s->mode &= ~larg); | |
2247 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2248 | return (long)s->max_cert_list; |
0f113f3e | 2249 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2250 | if (larg < 0) |
2251 | return 0; | |
2252 | l = (long)s->max_cert_list; | |
2253 | s->max_cert_list = (size_t)larg; | |
2254 | return l; | |
0f113f3e MC |
2255 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: |
2256 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2257 | return 0; | |
50ec7505 BP |
2258 | #ifndef OPENSSL_NO_KTLS |
2259 | if (s->wbio != NULL && BIO_get_ktls_send(s->wbio)) | |
2260 | return 0; | |
2261 | #endif /* OPENSSL_NO_KTLS */ | |
0f113f3e | 2262 | s->max_send_fragment = larg; |
d102d9df MC |
2263 | if (s->max_send_fragment < s->split_send_fragment) |
2264 | s->split_send_fragment = s->max_send_fragment; | |
2265 | return 1; | |
2266 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: | |
7ee8627f | 2267 | if ((size_t)larg > s->max_send_fragment || larg == 0) |
d102d9df MC |
2268 | return 0; |
2269 | s->split_send_fragment = larg; | |
0f113f3e | 2270 | return 1; |
d102d9df MC |
2271 | case SSL_CTRL_SET_MAX_PIPELINES: |
2272 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2273 | return 0; | |
2274 | s->max_pipelines = larg; | |
94777c9c MC |
2275 | if (larg > 1) |
2276 | RECORD_LAYER_set_read_ahead(&s->rlayer, 1); | |
07077415 | 2277 | return 1; |
0f113f3e MC |
2278 | case SSL_CTRL_GET_RI_SUPPORT: |
2279 | if (s->s3) | |
2280 | return s->s3->send_connection_binding; | |
2281 | else | |
2282 | return 0; | |
2283 | case SSL_CTRL_CERT_FLAGS: | |
2284 | return (s->cert->cert_flags |= larg); | |
2285 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2286 | return (s->cert->cert_flags &= ~larg); | |
2287 | ||
2288 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
2289 | if (parg) { | |
76106e60 | 2290 | if (s->s3->tmp.ciphers_raw == NULL) |
0f113f3e | 2291 | return 0; |
76106e60 DSH |
2292 | *(unsigned char **)parg = s->s3->tmp.ciphers_raw; |
2293 | return (int)s->s3->tmp.ciphers_rawlen; | |
e9fa092e EK |
2294 | } else { |
2295 | return TLS_CIPHER_LEN; | |
2296 | } | |
c5364614 | 2297 | case SSL_CTRL_GET_EXTMS_SUPPORT: |
024f543c | 2298 | if (!s->session || SSL_in_init(s) || ossl_statem_get_in_handshake(s)) |
a230b26e | 2299 | return -1; |
dccd20d1 | 2300 | if (s->session->flags & SSL_SESS_FLAG_EXTMS) |
c5364614 DSH |
2301 | return 1; |
2302 | else | |
2303 | return 0; | |
7946ab33 | 2304 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2305 | return ssl_check_allowed_versions(larg, s->max_proto_version) |
2306 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2307 | &s->min_proto_version); | |
3edabd3c CH |
2308 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2309 | return s->min_proto_version; | |
7946ab33 | 2310 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2311 | return ssl_check_allowed_versions(s->min_proto_version, larg) |
2312 | && ssl_set_version_bound(s->ctx->method->version, (int)larg, | |
2313 | &s->max_proto_version); | |
3edabd3c CH |
2314 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2315 | return s->max_proto_version; | |
0f113f3e | 2316 | default: |
26a7d938 | 2317 | return s->method->ssl_ctrl(s, cmd, larg, parg); |
0f113f3e MC |
2318 | } |
2319 | } | |
2320 | ||
2321 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
2322 | { | |
2323 | switch (cmd) { | |
2324 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2325 | s->msg_callback = (void (*) | |
2326 | (int write_p, int version, int content_type, | |
2327 | const void *buf, size_t len, SSL *ssl, | |
2328 | void *arg))(fp); | |
2329 | return 1; | |
2330 | ||
2331 | default: | |
26a7d938 | 2332 | return s->method->ssl_callback_ctrl(s, cmd, fp); |
0f113f3e MC |
2333 | } |
2334 | } | |
d3442bc7 | 2335 | |
3c1d6bbc | 2336 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
0f113f3e MC |
2337 | { |
2338 | return ctx->sessions; | |
2339 | } | |
2340 | ||
2341 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
2342 | { | |
2343 | long l; | |
2344 | /* For some cases with ctx == NULL perform syntax checks */ | |
2345 | if (ctx == NULL) { | |
2346 | switch (cmd) { | |
14536c8c | 2347 | #ifndef OPENSSL_NO_EC |
de4d764e MC |
2348 | case SSL_CTRL_SET_GROUPS_LIST: |
2349 | return tls1_set_groups_list(NULL, NULL, parg); | |
0f113f3e MC |
2350 | #endif |
2351 | case SSL_CTRL_SET_SIGALGS_LIST: | |
2352 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
2353 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
2354 | default: | |
2355 | return 0; | |
2356 | } | |
2357 | } | |
2358 | ||
2359 | switch (cmd) { | |
2360 | case SSL_CTRL_GET_READ_AHEAD: | |
26a7d938 | 2361 | return ctx->read_ahead; |
0f113f3e MC |
2362 | case SSL_CTRL_SET_READ_AHEAD: |
2363 | l = ctx->read_ahead; | |
2364 | ctx->read_ahead = larg; | |
26a7d938 | 2365 | return l; |
0f113f3e MC |
2366 | |
2367 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
2368 | ctx->msg_callback_arg = parg; | |
2369 | return 1; | |
2370 | ||
2371 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
26a7d938 | 2372 | return (long)ctx->max_cert_list; |
0f113f3e | 2373 | case SSL_CTRL_SET_MAX_CERT_LIST: |
348240c6 MC |
2374 | if (larg < 0) |
2375 | return 0; | |
2376 | l = (long)ctx->max_cert_list; | |
2377 | ctx->max_cert_list = (size_t)larg; | |
2378 | return l; | |
0f113f3e MC |
2379 | |
2380 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
348240c6 MC |
2381 | if (larg < 0) |
2382 | return 0; | |
2383 | l = (long)ctx->session_cache_size; | |
2384 | ctx->session_cache_size = (size_t)larg; | |
2385 | return l; | |
0f113f3e | 2386 | case SSL_CTRL_GET_SESS_CACHE_SIZE: |
26a7d938 | 2387 | return (long)ctx->session_cache_size; |
0f113f3e MC |
2388 | case SSL_CTRL_SET_SESS_CACHE_MODE: |
2389 | l = ctx->session_cache_mode; | |
2390 | ctx->session_cache_mode = larg; | |
26a7d938 | 2391 | return l; |
0f113f3e | 2392 | case SSL_CTRL_GET_SESS_CACHE_MODE: |
26a7d938 | 2393 | return ctx->session_cache_mode; |
0f113f3e MC |
2394 | |
2395 | case SSL_CTRL_SESS_NUMBER: | |
26a7d938 | 2396 | return lh_SSL_SESSION_num_items(ctx->sessions); |
0f113f3e | 2397 | case SSL_CTRL_SESS_CONNECT: |
9ef9088c | 2398 | return tsan_load(&ctx->stats.sess_connect); |
0f113f3e | 2399 | case SSL_CTRL_SESS_CONNECT_GOOD: |
9ef9088c | 2400 | return tsan_load(&ctx->stats.sess_connect_good); |
0f113f3e | 2401 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: |
9ef9088c | 2402 | return tsan_load(&ctx->stats.sess_connect_renegotiate); |
0f113f3e | 2403 | case SSL_CTRL_SESS_ACCEPT: |
9ef9088c | 2404 | return tsan_load(&ctx->stats.sess_accept); |
0f113f3e | 2405 | case SSL_CTRL_SESS_ACCEPT_GOOD: |
9ef9088c | 2406 | return tsan_load(&ctx->stats.sess_accept_good); |
0f113f3e | 2407 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: |
9ef9088c | 2408 | return tsan_load(&ctx->stats.sess_accept_renegotiate); |
0f113f3e | 2409 | case SSL_CTRL_SESS_HIT: |
9ef9088c | 2410 | return tsan_load(&ctx->stats.sess_hit); |
0f113f3e | 2411 | case SSL_CTRL_SESS_CB_HIT: |
9ef9088c | 2412 | return tsan_load(&ctx->stats.sess_cb_hit); |
0f113f3e | 2413 | case SSL_CTRL_SESS_MISSES: |
9ef9088c | 2414 | return tsan_load(&ctx->stats.sess_miss); |
0f113f3e | 2415 | case SSL_CTRL_SESS_TIMEOUTS: |
9ef9088c | 2416 | return tsan_load(&ctx->stats.sess_timeout); |
0f113f3e | 2417 | case SSL_CTRL_SESS_CACHE_FULL: |
9ef9088c | 2418 | return tsan_load(&ctx->stats.sess_cache_full); |
0f113f3e MC |
2419 | case SSL_CTRL_MODE: |
2420 | return (ctx->mode |= larg); | |
2421 | case SSL_CTRL_CLEAR_MODE: | |
2422 | return (ctx->mode &= ~larg); | |
2423 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
2424 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
2425 | return 0; | |
2426 | ctx->max_send_fragment = larg; | |
d102d9df | 2427 | if (ctx->max_send_fragment < ctx->split_send_fragment) |
bfb155c1 | 2428 | ctx->split_send_fragment = ctx->max_send_fragment; |
0f113f3e | 2429 | return 1; |
d102d9df | 2430 | case SSL_CTRL_SET_SPLIT_SEND_FRAGMENT: |
7ee8627f | 2431 | if ((size_t)larg > ctx->max_send_fragment || larg == 0) |
d102d9df MC |
2432 | return 0; |
2433 | ctx->split_send_fragment = larg; | |
2434 | return 1; | |
2435 | case SSL_CTRL_SET_MAX_PIPELINES: | |
2436 | if (larg < 1 || larg > SSL_MAX_PIPELINES) | |
2437 | return 0; | |
2438 | ctx->max_pipelines = larg; | |
07077415 | 2439 | return 1; |
0f113f3e MC |
2440 | case SSL_CTRL_CERT_FLAGS: |
2441 | return (ctx->cert->cert_flags |= larg); | |
2442 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
2443 | return (ctx->cert->cert_flags &= ~larg); | |
7946ab33 | 2444 | case SSL_CTRL_SET_MIN_PROTO_VERSION: |
c8feba72 BK |
2445 | return ssl_check_allowed_versions(larg, ctx->max_proto_version) |
2446 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2447 | &ctx->min_proto_version); | |
3edabd3c CH |
2448 | case SSL_CTRL_GET_MIN_PROTO_VERSION: |
2449 | return ctx->min_proto_version; | |
7946ab33 | 2450 | case SSL_CTRL_SET_MAX_PROTO_VERSION: |
c8feba72 BK |
2451 | return ssl_check_allowed_versions(ctx->min_proto_version, larg) |
2452 | && ssl_set_version_bound(ctx->method->version, (int)larg, | |
2453 | &ctx->max_proto_version); | |
3edabd3c CH |
2454 | case SSL_CTRL_GET_MAX_PROTO_VERSION: |
2455 | return ctx->max_proto_version; | |
0f113f3e | 2456 | default: |
26a7d938 | 2457 | return ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg); |
0f113f3e MC |
2458 | } |
2459 | } | |
2460 | ||
2461 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
2462 | { | |
2463 | switch (cmd) { | |
2464 | case SSL_CTRL_SET_MSG_CALLBACK: | |
2465 | ctx->msg_callback = (void (*) | |
2466 | (int write_p, int version, int content_type, | |
2467 | const void *buf, size_t len, SSL *ssl, | |
2468 | void *arg))(fp); | |
2469 | return 1; | |
2470 | ||
2471 | default: | |
26a7d938 | 2472 | return ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp); |
0f113f3e MC |
2473 | } |
2474 | } | |
d3442bc7 | 2475 | |
ccd86b68 | 2476 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
0f113f3e | 2477 | { |
90d9e49a DSH |
2478 | if (a->id > b->id) |
2479 | return 1; | |
2480 | if (a->id < b->id) | |
2481 | return -1; | |
2482 | return 0; | |
0f113f3e MC |
2483 | } |
2484 | ||
2485 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2486 | const SSL_CIPHER *const *bp) | |
2487 | { | |
90d9e49a DSH |
2488 | if ((*ap)->id > (*bp)->id) |
2489 | return 1; | |
2490 | if ((*ap)->id < (*bp)->id) | |
2491 | return -1; | |
2492 | return 0; | |
0f113f3e | 2493 | } |
d02b48c6 | 2494 | |
4f43d0e7 | 2495 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2496 | * preference */ |
0821bcd4 | 2497 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
0f113f3e MC |
2498 | { |
2499 | if (s != NULL) { | |
2500 | if (s->cipher_list != NULL) { | |
26a7d938 | 2501 | return s->cipher_list; |
0f113f3e | 2502 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { |
26a7d938 | 2503 | return s->ctx->cipher_list; |
0f113f3e MC |
2504 | } |
2505 | } | |
26a7d938 | 2506 | return NULL; |
0f113f3e MC |
2507 | } |
2508 | ||
831eef2c NM |
2509 | STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s) |
2510 | { | |
2511 | if ((s == NULL) || (s->session == NULL) || !s->server) | |
2512 | return NULL; | |
2513 | return s->session->ciphers; | |
2514 | } | |
2515 | ||
8b8e5bed | 2516 | STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s) |
0f113f3e MC |
2517 | { |
2518 | STACK_OF(SSL_CIPHER) *sk = NULL, *ciphers; | |
2519 | int i; | |
1d0c08b4 | 2520 | |
0f113f3e MC |
2521 | ciphers = SSL_get_ciphers(s); |
2522 | if (!ciphers) | |
2523 | return NULL; | |
1d0c08b4 MC |
2524 | if (!ssl_set_client_disabled(s)) |
2525 | return NULL; | |
0f113f3e MC |
2526 | for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { |
2527 | const SSL_CIPHER *c = sk_SSL_CIPHER_value(ciphers, i); | |
8af91fd9 | 2528 | if (!ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0)) { |
0f113f3e MC |
2529 | if (!sk) |
2530 | sk = sk_SSL_CIPHER_new_null(); | |
2531 | if (!sk) | |
2532 | return NULL; | |
2533 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
2534 | sk_SSL_CIPHER_free(sk); | |
2535 | return NULL; | |
2536 | } | |
2537 | } | |
2538 | } | |
2539 | return sk; | |
2540 | } | |
8b8e5bed | 2541 | |
4f43d0e7 | 2542 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 2543 | * algorithm id */ |
f73e07cf | 2544 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
0f113f3e MC |
2545 | { |
2546 | if (s != NULL) { | |
2547 | if (s->cipher_list_by_id != NULL) { | |
26a7d938 | 2548 | return s->cipher_list_by_id; |
0f113f3e | 2549 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { |
26a7d938 | 2550 | return s->ctx->cipher_list_by_id; |
0f113f3e MC |
2551 | } |
2552 | } | |
26a7d938 | 2553 | return NULL; |
0f113f3e | 2554 | } |
d02b48c6 | 2555 | |
4f43d0e7 | 2556 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
0f113f3e MC |
2557 | const char *SSL_get_cipher_list(const SSL *s, int n) |
2558 | { | |
4a640fb6 | 2559 | const SSL_CIPHER *c; |
0f113f3e MC |
2560 | STACK_OF(SSL_CIPHER) *sk; |
2561 | ||
2562 | if (s == NULL) | |
26a7d938 | 2563 | return NULL; |
0f113f3e MC |
2564 | sk = SSL_get_ciphers(s); |
2565 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
26a7d938 | 2566 | return NULL; |
0f113f3e MC |
2567 | c = sk_SSL_CIPHER_value(sk, n); |
2568 | if (c == NULL) | |
26a7d938 K |
2569 | return NULL; |
2570 | return c->name; | |
0f113f3e | 2571 | } |
d02b48c6 | 2572 | |
9d5ac953 KY |
2573 | /** return a STACK of the ciphers available for the SSL_CTX and in order of |
2574 | * preference */ | |
2575 | STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx) | |
2576 | { | |
2577 | if (ctx != NULL) | |
2578 | return ctx->cipher_list; | |
2579 | return NULL; | |
2580 | } | |
2581 | ||
25f923dd | 2582 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 2583 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
0f113f3e MC |
2584 | { |
2585 | STACK_OF(SSL_CIPHER) *sk; | |
2586 | ||
f865b081 MC |
2587 | sk = ssl_create_cipher_list(ctx->method, ctx->tls13_ciphersuites, |
2588 | &ctx->cipher_list, &ctx->cipher_list_by_id, str, | |
2589 | ctx->cert); | |
0f113f3e MC |
2590 | /* |
2591 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
2592 | * find a cipher matching the given rule string (for example if the rule | |
2593 | * string specifies a cipher which has been disabled). This is not an | |
2594 | * error as far as ssl_create_cipher_list is concerned, and hence | |
2595 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
2596 | */ | |
2597 | if (sk == NULL) | |
2598 | return 0; | |
2599 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2600 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2601 | return 0; | |
2602 | } | |
2603 | return 1; | |
2604 | } | |
d02b48c6 | 2605 | |
4f43d0e7 | 2606 | /** specify the ciphers to be used by the SSL */ |
0f113f3e MC |
2607 | int SSL_set_cipher_list(SSL *s, const char *str) |
2608 | { | |
2609 | STACK_OF(SSL_CIPHER) *sk; | |
2610 | ||
f865b081 MC |
2611 | sk = ssl_create_cipher_list(s->ctx->method, s->tls13_ciphersuites, |
2612 | &s->cipher_list, &s->cipher_list_by_id, str, | |
2613 | s->cert); | |
0f113f3e MC |
2614 | /* see comment in SSL_CTX_set_cipher_list */ |
2615 | if (sk == NULL) | |
2616 | return 0; | |
2617 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
2618 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
2619 | return 0; | |
2620 | } | |
2621 | return 1; | |
2622 | } | |
d02b48c6 | 2623 | |
a216df59 | 2624 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int size) |
0f113f3e MC |
2625 | { |
2626 | char *p; | |
a216df59 | 2627 | STACK_OF(SSL_CIPHER) *clntsk, *srvrsk; |
4a640fb6 | 2628 | const SSL_CIPHER *c; |
0f113f3e MC |
2629 | int i; |
2630 | ||
a216df59 MC |
2631 | if (!s->server |
2632 | || s->session == NULL | |
2633 | || s->session->ciphers == NULL | |
2634 | || size < 2) | |
26a7d938 | 2635 | return NULL; |
0f113f3e MC |
2636 | |
2637 | p = buf; | |
a216df59 MC |
2638 | clntsk = s->session->ciphers; |
2639 | srvrsk = SSL_get_ciphers(s); | |
2640 | if (clntsk == NULL || srvrsk == NULL) | |
2641 | return NULL; | |
0f113f3e | 2642 | |
a216df59 | 2643 | if (sk_SSL_CIPHER_num(clntsk) == 0 || sk_SSL_CIPHER_num(srvrsk) == 0) |
0f113f3e MC |
2644 | return NULL; |
2645 | ||
a216df59 | 2646 | for (i = 0; i < sk_SSL_CIPHER_num(clntsk); i++) { |
0f113f3e MC |
2647 | int n; |
2648 | ||
a216df59 MC |
2649 | c = sk_SSL_CIPHER_value(clntsk, i); |
2650 | if (sk_SSL_CIPHER_find(srvrsk, c) < 0) | |
2651 | continue; | |
2652 | ||
0f113f3e | 2653 | n = strlen(c->name); |
a216df59 | 2654 | if (n + 1 > size) { |
0f113f3e MC |
2655 | if (p != buf) |
2656 | --p; | |
2657 | *p = '\0'; | |
2658 | return buf; | |
2659 | } | |
4cacc9d5 | 2660 | strcpy(p, c->name); |
0f113f3e MC |
2661 | p += n; |
2662 | *(p++) = ':'; | |
a216df59 | 2663 | size -= n + 1; |
0f113f3e MC |
2664 | } |
2665 | p[-1] = '\0'; | |
26a7d938 | 2666 | return buf; |
0f113f3e MC |
2667 | } |
2668 | ||
52b8dad8 | 2669 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 2670 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
2671 | */ |
2672 | ||
f1fd4544 | 2673 | const char *SSL_get_servername(const SSL *s, const int type) |
0f113f3e MC |
2674 | { |
2675 | if (type != TLSEXT_NAMETYPE_host_name) | |
2676 | return NULL; | |
a13c20f6 | 2677 | |
1c4aa31d | 2678 | /* |
328a0547 BK |
2679 | * SNI is not negotiated in pre-TLS-1.3 resumption flows, so fake up an |
2680 | * SNI value to return if we are resuming/resumed. N.B. that we still | |
2681 | * call the relevant callbacks for such resumption flows, and callbacks | |
2682 | * might error out if there is not a SNI value available. | |
1c4aa31d | 2683 | */ |
328a0547 BK |
2684 | if (s->hit) |
2685 | return s->session->ext.hostname; | |
2686 | return s->ext.hostname; | |
0f113f3e | 2687 | } |
ed3883d2 | 2688 | |
f1fd4544 | 2689 | int SSL_get_servername_type(const SSL *s) |
0f113f3e MC |
2690 | { |
2691 | if (s->session | |
aff8c126 RS |
2692 | && (!s->ext.hostname ? s->session-> |
2693 | ext.hostname : s->ext.hostname)) | |
0f113f3e MC |
2694 | return TLSEXT_NAMETYPE_host_name; |
2695 | return -1; | |
2696 | } | |
ee2ffc27 | 2697 | |
0f113f3e MC |
2698 | /* |
2699 | * SSL_select_next_proto implements the standard protocol selection. It is | |
ee2ffc27 | 2700 | * expected that this function is called from the callback set by |
0f113f3e MC |
2701 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
2702 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
2703 | * not included in the length. A byte string of length 0 is invalid. No byte | |
2704 | * string may be truncated. The current, but experimental algorithm for | |
2705 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
2706 | * is indicated to the callback. In this case, the client application has to | |
2707 | * abort the connection or have a default application level protocol. 2) If | |
2708 | * the server supports NPN, but advertises an empty list then the client | |
f430ba31 | 2709 | * selects the first protocol in its list, but indicates via the API that this |
0f113f3e MC |
2710 | * fallback case was enacted. 3) Otherwise, the client finds the first |
2711 | * protocol in the server's list that it supports and selects this protocol. | |
2712 | * This is because it's assumed that the server has better information about | |
2713 | * which protocol a client should use. 4) If the client doesn't support any | |
2714 | * of the server's advertised protocols, then this is treated the same as | |
2715 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
2716 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
ee2ffc27 | 2717 | */ |
0f113f3e MC |
2718 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
2719 | const unsigned char *server, | |
2720 | unsigned int server_len, | |
a230b26e | 2721 | const unsigned char *client, unsigned int client_len) |
0f113f3e MC |
2722 | { |
2723 | unsigned int i, j; | |
2724 | const unsigned char *result; | |
2725 | int status = OPENSSL_NPN_UNSUPPORTED; | |
2726 | ||
2727 | /* | |
2728 | * For each protocol in server preference order, see if we support it. | |
2729 | */ | |
2730 | for (i = 0; i < server_len;) { | |
2731 | for (j = 0; j < client_len;) { | |
2732 | if (server[i] == client[j] && | |
2733 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
2734 | /* We found a match */ | |
2735 | result = &server[i]; | |
2736 | status = OPENSSL_NPN_NEGOTIATED; | |
2737 | goto found; | |
2738 | } | |
2739 | j += client[j]; | |
2740 | j++; | |
2741 | } | |
2742 | i += server[i]; | |
2743 | i++; | |
2744 | } | |
2745 | ||
2746 | /* There's no overlap between our protocols and the server's list. */ | |
2747 | result = client; | |
2748 | status = OPENSSL_NPN_NO_OVERLAP; | |
2749 | ||
2750 | found: | |
2751 | *out = (unsigned char *)result + 1; | |
2752 | *outlen = result[0]; | |
2753 | return status; | |
2754 | } | |
ee2ffc27 | 2755 | |
e481f9b9 | 2756 | #ifndef OPENSSL_NO_NEXTPROTONEG |
0f113f3e MC |
2757 | /* |
2758 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
2759 | * client's requested protocol for this connection and returns 0. If the | |
2760 | * client didn't request any protocol, then *data is set to NULL. Note that | |
2761 | * the client can request any protocol it chooses. The value returned from | |
2762 | * this function need not be a member of the list of supported protocols | |
ee2ffc27 BL |
2763 | * provided by the callback. |
2764 | */ | |
0f113f3e MC |
2765 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
2766 | unsigned *len) | |
2767 | { | |
aff8c126 | 2768 | *data = s->ext.npn; |
0f113f3e MC |
2769 | if (!*data) { |
2770 | *len = 0; | |
2771 | } else { | |
aff8c126 | 2772 | *len = (unsigned int)s->ext.npn_len; |
0f113f3e MC |
2773 | } |
2774 | } | |
2775 | ||
2776 | /* | |
aff8c126 | 2777 | * SSL_CTX_set_npn_advertised_cb sets a callback that is called when |
0f113f3e MC |
2778 | * a TLS server needs a list of supported protocols for Next Protocol |
2779 | * Negotiation. The returned list must be in wire format. The list is | |
2780 | * returned by setting |out| to point to it and |outlen| to its length. This | |
2781 | * memory will not be modified, but one should assume that the SSL* keeps a | |
2782 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
2783 | * wishes to advertise. Otherwise, no such extension will be included in the | |
2784 | * ServerHello. | |
2785 | */ | |
aff8c126 | 2786 | void SSL_CTX_set_npn_advertised_cb(SSL_CTX *ctx, |
8cbfcc70 | 2787 | SSL_CTX_npn_advertised_cb_func cb, |
aff8c126 | 2788 | void *arg) |
0f113f3e | 2789 | { |
aff8c126 RS |
2790 | ctx->ext.npn_advertised_cb = cb; |
2791 | ctx->ext.npn_advertised_cb_arg = arg; | |
0f113f3e MC |
2792 | } |
2793 | ||
2794 | /* | |
2795 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
ee2ffc27 BL |
2796 | * client needs to select a protocol from the server's provided list. |out| |
2797 | * must be set to point to the selected protocol (which may be within |in|). | |
0f113f3e MC |
2798 | * The length of the protocol name must be written into |outlen|. The |
2799 | * server's advertised protocols are provided in |in| and |inlen|. The | |
2800 | * callback can assume that |in| is syntactically valid. The client must | |
2801 | * select a protocol. It is fatal to the connection if this callback returns | |
2802 | * a value other than SSL_TLSEXT_ERR_OK. | |
ee2ffc27 | 2803 | */ |
aff8c126 | 2804 | void SSL_CTX_set_npn_select_cb(SSL_CTX *ctx, |
8cbfcc70 | 2805 | SSL_CTX_npn_select_cb_func cb, |
aff8c126 | 2806 | void *arg) |
0f113f3e | 2807 | { |
aff8c126 RS |
2808 | ctx->ext.npn_select_cb = cb; |
2809 | ctx->ext.npn_select_cb_arg = arg; | |
0f113f3e | 2810 | } |
e481f9b9 | 2811 | #endif |
a398f821 | 2812 | |
0f113f3e MC |
2813 | /* |
2814 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
6f017a8f | 2815 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2816 | * length-prefixed strings). Returns 0 on success. |
2817 | */ | |
2818 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
817cd0d5 | 2819 | unsigned int protos_len) |
0f113f3e | 2820 | { |
aff8c126 RS |
2821 | OPENSSL_free(ctx->ext.alpn); |
2822 | ctx->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2823 | if (ctx->ext.alpn == NULL) { | |
72e9be3d | 2824 | SSLerr(SSL_F_SSL_CTX_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2825 | return 1; |
72e9be3d | 2826 | } |
aff8c126 | 2827 | ctx->ext.alpn_len = protos_len; |
0f113f3e MC |
2828 | |
2829 | return 0; | |
2830 | } | |
2831 | ||
2832 | /* | |
2833 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
6f017a8f | 2834 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
0f113f3e MC |
2835 | * length-prefixed strings). Returns 0 on success. |
2836 | */ | |
2837 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
817cd0d5 | 2838 | unsigned int protos_len) |
0f113f3e | 2839 | { |
aff8c126 RS |
2840 | OPENSSL_free(ssl->ext.alpn); |
2841 | ssl->ext.alpn = OPENSSL_memdup(protos, protos_len); | |
2842 | if (ssl->ext.alpn == NULL) { | |
72e9be3d | 2843 | SSLerr(SSL_F_SSL_SET_ALPN_PROTOS, ERR_R_MALLOC_FAILURE); |
0f113f3e | 2844 | return 1; |
72e9be3d | 2845 | } |
aff8c126 | 2846 | ssl->ext.alpn_len = protos_len; |
0f113f3e MC |
2847 | |
2848 | return 0; | |
2849 | } | |
2850 | ||
2851 | /* | |
2852 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
2853 | * called during ClientHello processing in order to select an ALPN protocol | |
2854 | * from the client's list of offered protocols. | |
2855 | */ | |
2856 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
8cbfcc70 RS |
2857 | SSL_CTX_alpn_select_cb_func cb, |
2858 | void *arg) | |
0f113f3e | 2859 | { |
aff8c126 RS |
2860 | ctx->ext.alpn_select_cb = cb; |
2861 | ctx->ext.alpn_select_cb_arg = arg; | |
0f113f3e MC |
2862 | } |
2863 | ||
2864 | /* | |
69687aa8 F |
2865 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from |ssl|. |
2866 | * On return it sets |*data| to point to |*len| bytes of protocol name | |
0f113f3e MC |
2867 | * (not including the leading length-prefix byte). If the server didn't |
2868 | * respond with a negotiated protocol then |*len| will be zero. | |
2869 | */ | |
6f017a8f | 2870 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
817cd0d5 | 2871 | unsigned int *len) |
0f113f3e MC |
2872 | { |
2873 | *data = NULL; | |
2874 | if (ssl->s3) | |
2875 | *data = ssl->s3->alpn_selected; | |
2876 | if (*data == NULL) | |
2877 | *len = 0; | |
2878 | else | |
348240c6 | 2879 | *len = (unsigned int)ssl->s3->alpn_selected_len; |
0f113f3e MC |
2880 | } |
2881 | ||
74b4b494 | 2882 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
0f113f3e | 2883 | const char *label, size_t llen, |
23cec1f4 | 2884 | const unsigned char *context, size_t contextlen, |
0f113f3e MC |
2885 | int use_context) |
2886 | { | |
c8a18468 | 2887 | if (s->version < TLS1_VERSION && s->version != DTLS1_BAD_VER) |
0f113f3e | 2888 | return -1; |
e0af0405 | 2889 | |
0f113f3e | 2890 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
23cec1f4 MC |
2891 | llen, context, |
2892 | contextlen, use_context); | |
0f113f3e | 2893 | } |
e0af0405 | 2894 | |
b38ede80 TT |
2895 | int SSL_export_keying_material_early(SSL *s, unsigned char *out, size_t olen, |
2896 | const char *label, size_t llen, | |
2897 | const unsigned char *context, | |
2898 | size_t contextlen) | |
2899 | { | |
2900 | if (s->version != TLS1_3_VERSION) | |
2901 | return 0; | |
2902 | ||
2903 | return tls13_export_keying_material_early(s, out, olen, label, llen, | |
2904 | context, contextlen); | |
2905 | } | |
2906 | ||
3c1d6bbc | 2907 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
0f113f3e | 2908 | { |
bd5d27c1 | 2909 | const unsigned char *session_id = a->session_id; |
0f113f3e | 2910 | unsigned long l; |
bd5d27c1 DB |
2911 | unsigned char tmp_storage[4]; |
2912 | ||
2913 | if (a->session_id_length < sizeof(tmp_storage)) { | |
2914 | memset(tmp_storage, 0, sizeof(tmp_storage)); | |
2915 | memcpy(tmp_storage, a->session_id, a->session_id_length); | |
2916 | session_id = tmp_storage; | |
2917 | } | |
0f113f3e MC |
2918 | |
2919 | l = (unsigned long) | |
bd5d27c1 DB |
2920 | ((unsigned long)session_id[0]) | |
2921 | ((unsigned long)session_id[1] << 8L) | | |
2922 | ((unsigned long)session_id[2] << 16L) | | |
2923 | ((unsigned long)session_id[3] << 24L); | |
26a7d938 | 2924 | return l; |
0f113f3e MC |
2925 | } |
2926 | ||
2927 | /* | |
2928 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 2929 | * coarser function than this one) is changed, ensure |
0f113f3e MC |
2930 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
2931 | * being able to construct an SSL_SESSION that will collide with any existing | |
2932 | * session with a matching session ID. | |
2933 | */ | |
2934 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
2935 | { | |
2936 | if (a->ssl_version != b->ssl_version) | |
208fb891 | 2937 | return 1; |
0f113f3e | 2938 | if (a->session_id_length != b->session_id_length) |
208fb891 | 2939 | return 1; |
26a7d938 | 2940 | return memcmp(a->session_id, b->session_id, a->session_id_length); |
0f113f3e MC |
2941 | } |
2942 | ||
2943 | /* | |
2944 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 2945 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
0f113f3e MC |
2946 | * variable. The reason is that the functions aren't static, they're exposed |
2947 | * via ssl.h. | |
2948 | */ | |
97b17195 | 2949 | |
4ebb342f | 2950 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
0f113f3e MC |
2951 | { |
2952 | SSL_CTX *ret = NULL; | |
2953 | ||
2954 | if (meth == NULL) { | |
2955 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
26a7d938 | 2956 | return NULL; |
0f113f3e MC |
2957 | } |
2958 | ||
0fc32b07 MC |
2959 | if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) |
2960 | return NULL; | |
7fa792d1 | 2961 | |
0f113f3e MC |
2962 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
2963 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
2964 | goto err; | |
2965 | } | |
b51bce94 | 2966 | ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
2967 | if (ret == NULL) |
2968 | goto err; | |
2969 | ||
0f113f3e | 2970 | ret->method = meth; |
7946ab33 KR |
2971 | ret->min_proto_version = 0; |
2972 | ret->max_proto_version = 0; | |
693cf80c | 2973 | ret->mode = SSL_MODE_AUTO_RETRY; |
0f113f3e MC |
2974 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; |
2975 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
64b25758 | 2976 | /* We take the system default. */ |
0f113f3e | 2977 | ret->session_timeout = meth->get_timeout(); |
0f113f3e | 2978 | ret->references = 1; |
16203f7b AG |
2979 | ret->lock = CRYPTO_THREAD_lock_new(); |
2980 | if (ret->lock == NULL) { | |
2981 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2982 | OPENSSL_free(ret); | |
2983 | return NULL; | |
2984 | } | |
0f113f3e | 2985 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
0f113f3e | 2986 | ret->verify_mode = SSL_VERIFY_NONE; |
0f113f3e MC |
2987 | if ((ret->cert = ssl_cert_new()) == NULL) |
2988 | goto err; | |
2989 | ||
62d0577e | 2990 | ret->sessions = lh_SSL_SESSION_new(ssl_session_hash, ssl_session_cmp); |
0f113f3e MC |
2991 | if (ret->sessions == NULL) |
2992 | goto err; | |
2993 | ret->cert_store = X509_STORE_new(); | |
2994 | if (ret->cert_store == NULL) | |
2995 | goto err; | |
ed29e82a RP |
2996 | #ifndef OPENSSL_NO_CT |
2997 | ret->ctlog_store = CTLOG_STORE_new(); | |
2998 | if (ret->ctlog_store == NULL) | |
2999 | goto err; | |
3000 | #endif | |
f865b081 | 3001 | |
fa25763b | 3002 | if (!SSL_CTX_set_ciphersuites(ret, TLS_DEFAULT_CIPHERSUITES)) |
f865b081 MC |
3003 | goto err; |
3004 | ||
61986d32 | 3005 | if (!ssl_create_cipher_list(ret->method, |
f865b081 | 3006 | ret->tls13_ciphersuites, |
a230b26e EK |
3007 | &ret->cipher_list, &ret->cipher_list_by_id, |
3008 | SSL_DEFAULT_CIPHER_LIST, ret->cert) | |
3009 | || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
0f113f3e MC |
3010 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); |
3011 | goto err2; | |
3012 | } | |
3013 | ||
3014 | ret->param = X509_VERIFY_PARAM_new(); | |
a71edf3b | 3015 | if (ret->param == NULL) |
0f113f3e MC |
3016 | goto err; |
3017 | ||
3018 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
3019 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
3020 | goto err2; | |
3021 | } | |
3022 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
3023 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
3024 | goto err2; | |
3025 | } | |
3026 | ||
fa7c2637 | 3027 | if ((ret->ca_names = sk_X509_NAME_new_null()) == NULL) |
0f113f3e MC |
3028 | goto err; |
3029 | ||
98732979 MC |
3030 | if ((ret->client_ca_names = sk_X509_NAME_new_null()) == NULL) |
3031 | goto err; | |
3032 | ||
25a807bc F |
3033 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data)) |
3034 | goto err; | |
0f113f3e | 3035 | |
4bfb96f2 TS |
3036 | if ((ret->ext.secure = OPENSSL_secure_zalloc(sizeof(*ret->ext.secure))) == NULL) |
3037 | goto err; | |
3038 | ||
0f113f3e MC |
3039 | /* No compression for DTLS */ |
3040 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)) | |
3041 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
3042 | ||
3043 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
d102d9df | 3044 | ret->split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; |
566dda07 | 3045 | |
4e2e1ec9 | 3046 | /* Setup RFC5077 ticket keys */ |
aff8c126 RS |
3047 | if ((RAND_bytes(ret->ext.tick_key_name, |
3048 | sizeof(ret->ext.tick_key_name)) <= 0) | |
4cffafe9 | 3049 | || (RAND_priv_bytes(ret->ext.secure->tick_hmac_key, |
4bfb96f2 | 3050 | sizeof(ret->ext.secure->tick_hmac_key)) <= 0) |
4cffafe9 | 3051 | || (RAND_priv_bytes(ret->ext.secure->tick_aes_key, |
4bfb96f2 | 3052 | sizeof(ret->ext.secure->tick_aes_key)) <= 0)) |
0f113f3e | 3053 | ret->options |= SSL_OP_NO_TICKET; |
6434abbf | 3054 | |
4cffafe9 | 3055 | if (RAND_priv_bytes(ret->ext.cookie_hmac_key, |
43054d3d MC |
3056 | sizeof(ret->ext.cookie_hmac_key)) <= 0) |
3057 | goto err; | |
3058 | ||
edc032b5 | 3059 | #ifndef OPENSSL_NO_SRP |
61986d32 | 3060 | if (!SSL_CTX_SRP_CTX_init(ret)) |
69f68237 | 3061 | goto err; |
edc032b5 | 3062 | #endif |
4db9677b | 3063 | #ifndef OPENSSL_NO_ENGINE |
0f113f3e MC |
3064 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO |
3065 | # define eng_strx(x) #x | |
3066 | # define eng_str(x) eng_strx(x) | |
3067 | /* Use specific client engine automatically... ignore errors */ | |
3068 | { | |
3069 | ENGINE *eng; | |
3070 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
3071 | if (!eng) { | |
3072 | ERR_clear_error(); | |
3073 | ENGINE_load_builtin_engines(); | |
3074 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
3075 | } | |
3076 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
3077 | ERR_clear_error(); | |
3078 | } | |
3079 | # endif | |
3080 | #endif | |
3081 | /* | |
3082 | * Default is to connect to non-RI servers. When RI is more widely | |
3083 | * deployed might change this. | |
3084 | */ | |
3085 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
dc5744cb EK |
3086 | /* |
3087 | * Disable compression by default to prevent CRIME. Applications can | |
3088 | * re-enable compression by configuring | |
3089 | * SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION); | |
a5816a5a MC |
3090 | * or by using the SSL_CONF library. Similarly we also enable TLSv1.3 |
3091 | * middlebox compatibility by default. This may be disabled by default in | |
3092 | * a later OpenSSL version. | |
dc5744cb | 3093 | */ |
a5816a5a | 3094 | ret->options |= SSL_OP_NO_COMPRESSION | SSL_OP_ENABLE_MIDDLEBOX_COMPAT; |
0f113f3e | 3095 | |
aff8c126 | 3096 | ret->ext.status_type = TLSEXT_STATUSTYPE_nothing; |
ba261f71 | 3097 | |
bfa9a9af | 3098 | /* |
c39e4048 BK |
3099 | * We cannot usefully set a default max_early_data here (which gets |
3100 | * propagated in SSL_new(), for the following reason: setting the | |
3101 | * SSL field causes tls_construct_stoc_early_data() to tell the | |
3102 | * client that early data will be accepted when constructing a TLS 1.3 | |
3103 | * session ticket, and the client will accordingly send us early data | |
3104 | * when using that ticket (if the client has early data to send). | |
3105 | * However, in order for the early data to actually be consumed by | |
3106 | * the application, the application must also have calls to | |
3107 | * SSL_read_early_data(); otherwise we'll just skip past the early data | |
3108 | * and ignore it. So, since the application must add calls to | |
3109 | * SSL_read_early_data(), we also require them to add | |
3110 | * calls to SSL_CTX_set_max_early_data() in order to use early data, | |
3111 | * eliminating the bandwidth-wasting early data in the case described | |
3112 | * above. | |
bfa9a9af | 3113 | */ |
c39e4048 | 3114 | ret->max_early_data = 0; |
bfa9a9af | 3115 | |
4e8548e8 MC |
3116 | /* |
3117 | * Default recv_max_early_data is a fully loaded single record. Could be | |
3118 | * split across multiple records in practice. We set this differently to | |
3119 | * max_early_data so that, in the default case, we do not advertise any | |
3120 | * support for early_data, but if a client were to send us some (e.g. | |
3121 | * because of an old, stale ticket) then we will tolerate it and skip over | |
3122 | * it. | |
3123 | */ | |
3124 | ret->recv_max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; | |
3125 | ||
36ff232c MC |
3126 | /* By default we send two session tickets automatically in TLSv1.3 */ |
3127 | ret->num_tickets = 2; | |
9d0a8bb7 | 3128 | |
8a5ed9dc TM |
3129 | ssl_ctx_system_config(ret); |
3130 | ||
16203f7b | 3131 | return ret; |
0f113f3e MC |
3132 | err: |
3133 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
3134 | err2: | |
e0e920b1 | 3135 | SSL_CTX_free(ret); |
16203f7b | 3136 | return NULL; |
0f113f3e | 3137 | } |
d02b48c6 | 3138 | |
c5ebfcab | 3139 | int SSL_CTX_up_ref(SSL_CTX *ctx) |
a18a31e4 | 3140 | { |
16203f7b | 3141 | int i; |
c5ebfcab | 3142 | |
2f545ae4 | 3143 | if (CRYPTO_UP_REF(&ctx->references, &i, ctx->lock) <= 0) |
c5ebfcab F |
3144 | return 0; |
3145 | ||
3146 | REF_PRINT_COUNT("SSL_CTX", ctx); | |
3147 | REF_ASSERT_ISNT(i < 2); | |
3148 | return ((i > 1) ? 1 : 0); | |
a18a31e4 MC |
3149 | } |
3150 | ||
4f43d0e7 | 3151 | void SSL_CTX_free(SSL_CTX *a) |
0f113f3e MC |
3152 | { |
3153 | int i; | |
d02b48c6 | 3154 | |
0f113f3e MC |
3155 | if (a == NULL) |
3156 | return; | |
d02b48c6 | 3157 | |
2f545ae4 | 3158 | CRYPTO_DOWN_REF(&a->references, &i, a->lock); |
f3f1cf84 | 3159 | REF_PRINT_COUNT("SSL_CTX", a); |
0f113f3e MC |
3160 | if (i > 0) |
3161 | return; | |
f3f1cf84 | 3162 | REF_ASSERT_ISNT(i < 0); |
0f113f3e | 3163 | |
222561fe | 3164 | X509_VERIFY_PARAM_free(a->param); |
919ba009 | 3165 | dane_ctx_final(&a->dane); |
0f113f3e MC |
3166 | |
3167 | /* | |
3168 | * Free internal session cache. However: the remove_cb() may reference | |
3169 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
3170 | * after the sessions were flushed. | |
3171 | * As the ex_data handling routines might also touch the session cache, | |
3172 | * the most secure solution seems to be: empty (flush) the cache, then | |
3173 | * free ex_data, then finally free the cache. | |
3174 | * (See ticket [openssl.org #212].) | |
3175 | */ | |
3176 | if (a->sessions != NULL) | |
3177 | SSL_CTX_flush_sessions(a, 0); | |
3178 | ||
3179 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
25aaa98a | 3180 | lh_SSL_SESSION_free(a->sessions); |
222561fe | 3181 | X509_STORE_free(a->cert_store); |
ed29e82a RP |
3182 | #ifndef OPENSSL_NO_CT |
3183 | CTLOG_STORE_free(a->ctlog_store); | |
3184 | #endif | |
25aaa98a RS |
3185 | sk_SSL_CIPHER_free(a->cipher_list); |
3186 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
f865b081 | 3187 | sk_SSL_CIPHER_free(a->tls13_ciphersuites); |
e0e920b1 | 3188 | ssl_cert_free(a->cert); |
fa7c2637 | 3189 | sk_X509_NAME_pop_free(a->ca_names, X509_NAME_free); |
98732979 | 3190 | sk_X509_NAME_pop_free(a->client_ca_names, X509_NAME_free); |
222561fe | 3191 | sk_X509_pop_free(a->extra_certs, X509_free); |
0f113f3e | 3192 | a->comp_methods = NULL; |
e783bae2 | 3193 | #ifndef OPENSSL_NO_SRTP |
25aaa98a | 3194 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); |
e783bae2 | 3195 | #endif |
edc032b5 | 3196 | #ifndef OPENSSL_NO_SRP |
0f113f3e | 3197 | SSL_CTX_SRP_CTX_free(a); |
edc032b5 | 3198 | #endif |
bdfe932d | 3199 | #ifndef OPENSSL_NO_ENGINE |
7c96dbcd | 3200 | ENGINE_finish(a->client_cert_engine); |
ddac1974 | 3201 | #endif |
8671b898 | 3202 | |
e481f9b9 | 3203 | #ifndef OPENSSL_NO_EC |
aff8c126 RS |
3204 | OPENSSL_free(a->ext.ecpointformats); |
3205 | OPENSSL_free(a->ext.supportedgroups); | |
8671b898 | 3206 | #endif |
aff8c126 | 3207 | OPENSSL_free(a->ext.alpn); |
4bfb96f2 | 3208 | OPENSSL_secure_free(a->ext.secure); |
8671b898 | 3209 | |
16203f7b AG |
3210 | CRYPTO_THREAD_lock_free(a->lock); |
3211 | ||
0f113f3e MC |
3212 | OPENSSL_free(a); |
3213 | } | |
d02b48c6 | 3214 | |
3ae76679 | 3215 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
0f113f3e MC |
3216 | { |
3217 | ctx->default_passwd_callback = cb; | |
3218 | } | |
3219 | ||
3220 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
3221 | { | |
3222 | ctx->default_passwd_callback_userdata = u; | |
3223 | } | |
3224 | ||
0c452abc CH |
3225 | pem_password_cb *SSL_CTX_get_default_passwd_cb(SSL_CTX *ctx) |
3226 | { | |
3227 | return ctx->default_passwd_callback; | |
3228 | } | |
3229 | ||
3230 | void *SSL_CTX_get_default_passwd_cb_userdata(SSL_CTX *ctx) | |
3231 | { | |
3232 | return ctx->default_passwd_callback_userdata; | |
3233 | } | |
3234 | ||
a974e64a MC |
3235 | void SSL_set_default_passwd_cb(SSL *s, pem_password_cb *cb) |
3236 | { | |
3237 | s->default_passwd_callback = cb; | |
3238 | } | |
3239 | ||
3240 | void SSL_set_default_passwd_cb_userdata(SSL *s, void *u) | |
3241 | { | |
3242 | s->default_passwd_callback_userdata = u; | |
3243 | } | |
3244 | ||
0c452abc CH |
3245 | pem_password_cb *SSL_get_default_passwd_cb(SSL *s) |
3246 | { | |
3247 | return s->default_passwd_callback; | |
3248 | } | |
3249 | ||
3250 | void *SSL_get_default_passwd_cb_userdata(SSL *s) | |
3251 | { | |
3252 | return s->default_passwd_callback_userdata; | |
3253 | } | |
3254 | ||
0f113f3e MC |
3255 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, |
3256 | int (*cb) (X509_STORE_CTX *, void *), | |
3257 | void *arg) | |
3258 | { | |
3259 | ctx->app_verify_callback = cb; | |
3260 | ctx->app_verify_arg = arg; | |
3261 | } | |
3262 | ||
3263 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
3264 | int (*cb) (int, X509_STORE_CTX *)) | |
3265 | { | |
3266 | ctx->verify_mode = mode; | |
3267 | ctx->default_verify_callback = cb; | |
3268 | } | |
3269 | ||
3270 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
3271 | { | |
3272 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
3273 | } | |
3274 | ||
a230b26e | 3275 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), void *arg) |
0f113f3e MC |
3276 | { |
3277 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
3278 | } | |
3279 | ||
3280 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
3281 | { | |
3282 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
3283 | } | |
18d71588 | 3284 | |
2cf28d61 | 3285 | void ssl_set_masks(SSL *s) |
0f113f3e | 3286 | { |
6383d316 | 3287 | CERT *c = s->cert; |
f7d53487 | 3288 | uint32_t *pvalid = s->s3->tmp.valid_flags; |
bc71f910 | 3289 | int rsa_enc, rsa_sign, dh_tmp, dsa_sign; |
361a1191 | 3290 | unsigned long mask_k, mask_a; |
10bf4fc2 | 3291 | #ifndef OPENSSL_NO_EC |
361a1191 | 3292 | int have_ecc_cert, ecdsa_ok; |
14536c8c | 3293 | #endif |
0f113f3e MC |
3294 | if (c == NULL) |
3295 | return; | |
d02b48c6 | 3296 | |
bc36ee62 | 3297 | #ifndef OPENSSL_NO_DH |
0f113f3e | 3298 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL || c->dh_tmp_auto); |
d02b48c6 | 3299 | #else |
361a1191 | 3300 | dh_tmp = 0; |
d02b48c6 RE |
3301 | #endif |
3302 | ||
d0ff28f8 | 3303 | rsa_enc = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
38e8f3cd DSH |
3304 | rsa_sign = pvalid[SSL_PKEY_RSA] & CERT_PKEY_VALID; |
3305 | dsa_sign = pvalid[SSL_PKEY_DSA_SIGN] & CERT_PKEY_VALID; | |
14536c8c | 3306 | #ifndef OPENSSL_NO_EC |
6383d316 | 3307 | have_ecc_cert = pvalid[SSL_PKEY_ECC] & CERT_PKEY_VALID; |
14536c8c | 3308 | #endif |
0f113f3e MC |
3309 | mask_k = 0; |
3310 | mask_a = 0; | |
0e1dba93 | 3311 | |
d02b48c6 | 3312 | #ifdef CIPHER_DEBUG |
b7557ccf AG |
3313 | fprintf(stderr, "dht=%d re=%d rs=%d ds=%d\n", |
3314 | dh_tmp, rsa_enc, rsa_sign, dsa_sign); | |
0f113f3e MC |
3315 | #endif |
3316 | ||
2a9b9654 | 3317 | #ifndef OPENSSL_NO_GOST |
4020c0b3 | 3318 | if (ssl_has_cert(s, SSL_PKEY_GOST12_512)) { |
e44380a9 DB |
3319 | mask_k |= SSL_kGOST; |
3320 | mask_a |= SSL_aGOST12; | |
3321 | } | |
4020c0b3 | 3322 | if (ssl_has_cert(s, SSL_PKEY_GOST12_256)) { |
e44380a9 DB |
3323 | mask_k |= SSL_kGOST; |
3324 | mask_a |= SSL_aGOST12; | |
3325 | } | |
4020c0b3 | 3326 | if (ssl_has_cert(s, SSL_PKEY_GOST01)) { |
0f113f3e MC |
3327 | mask_k |= SSL_kGOST; |
3328 | mask_a |= SSL_aGOST01; | |
3329 | } | |
2a9b9654 | 3330 | #endif |
0f113f3e | 3331 | |
361a1191 | 3332 | if (rsa_enc) |
0f113f3e | 3333 | mask_k |= SSL_kRSA; |
d02b48c6 | 3334 | |
0f113f3e MC |
3335 | if (dh_tmp) |
3336 | mask_k |= SSL_kDHE; | |
d02b48c6 | 3337 | |
6aaa29fb DSH |
3338 | /* |
3339 | * If we only have an RSA-PSS certificate allow RSA authentication | |
3340 | * if TLS 1.2 and peer supports it. | |
3341 | */ | |
3342 | ||
3343 | if (rsa_enc || rsa_sign || (ssl_has_cert(s, SSL_PKEY_RSA_PSS_SIGN) | |
3344 | && pvalid[SSL_PKEY_RSA_PSS_SIGN] & CERT_PKEY_EXPLICIT_SIGN | |
3345 | && TLS1_get_version(s) == TLS1_2_VERSION)) | |
0f113f3e | 3346 | mask_a |= SSL_aRSA; |
d02b48c6 | 3347 | |
0f113f3e MC |
3348 | if (dsa_sign) { |
3349 | mask_a |= SSL_aDSS; | |
0f113f3e | 3350 | } |
d02b48c6 | 3351 | |
0f113f3e | 3352 | mask_a |= SSL_aNULL; |
d02b48c6 | 3353 | |
0f113f3e MC |
3354 | /* |
3355 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
3356 | * depending on the key usage extension. | |
3357 | */ | |
14536c8c | 3358 | #ifndef OPENSSL_NO_EC |
0f113f3e | 3359 | if (have_ecc_cert) { |
a8d8e06b | 3360 | uint32_t ex_kusage; |
4020c0b3 | 3361 | ex_kusage = X509_get_key_usage(c->pkeys[SSL_PKEY_ECC].x509); |
a8d8e06b | 3362 | ecdsa_ok = ex_kusage & X509v3_KU_DIGITAL_SIGNATURE; |
6383d316 | 3363 | if (!(pvalid[SSL_PKEY_ECC] & CERT_PKEY_SIGN)) |
0f113f3e | 3364 | ecdsa_ok = 0; |
c7c46256 | 3365 | if (ecdsa_ok) |
0f113f3e | 3366 | mask_a |= SSL_aECDSA; |
0f113f3e | 3367 | } |
b2021556 DSH |
3368 | /* Allow Ed25519 for TLS 1.2 if peer supports it */ |
3369 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED25519) | |
3370 | && pvalid[SSL_PKEY_ED25519] & CERT_PKEY_EXPLICIT_SIGN | |
3371 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3372 | mask_a |= SSL_aECDSA; | |
0e1d6ecf MC |
3373 | |
3374 | /* Allow Ed448 for TLS 1.2 if peer supports it */ | |
3375 | if (!(mask_a & SSL_aECDSA) && ssl_has_cert(s, SSL_PKEY_ED448) | |
3376 | && pvalid[SSL_PKEY_ED448] & CERT_PKEY_EXPLICIT_SIGN | |
3377 | && TLS1_get_version(s) == TLS1_2_VERSION) | |
3378 | mask_a |= SSL_aECDSA; | |
14536c8c | 3379 | #endif |
ea262260 | 3380 | |
10bf4fc2 | 3381 | #ifndef OPENSSL_NO_EC |
fe6ef247 | 3382 | mask_k |= SSL_kECDHE; |
ea262260 | 3383 | #endif |
ddac1974 NL |
3384 | |
3385 | #ifndef OPENSSL_NO_PSK | |
0f113f3e MC |
3386 | mask_k |= SSL_kPSK; |
3387 | mask_a |= SSL_aPSK; | |
526f94ad DSH |
3388 | if (mask_k & SSL_kRSA) |
3389 | mask_k |= SSL_kRSAPSK; | |
3390 | if (mask_k & SSL_kDHE) | |
3391 | mask_k |= SSL_kDHEPSK; | |
3392 | if (mask_k & SSL_kECDHE) | |
3393 | mask_k |= SSL_kECDHEPSK; | |
ddac1974 NL |
3394 | #endif |
3395 | ||
4d69f9e6 DSH |
3396 | s->s3->tmp.mask_k = mask_k; |
3397 | s->s3->tmp.mask_a = mask_a; | |
0f113f3e | 3398 | } |
d02b48c6 | 3399 | |
ef236ec3 DSH |
3400 | #ifndef OPENSSL_NO_EC |
3401 | ||
a2f9200f | 3402 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
0f113f3e | 3403 | { |
ce0c1f2b | 3404 | if (s->s3->tmp.new_cipher->algorithm_auth & SSL_aECDSA) { |
0f113f3e | 3405 | /* key usage, if present, must allow signing */ |
ce0c1f2b | 3406 | if (!(X509_get_key_usage(x) & X509v3_KU_DIGITAL_SIGNATURE)) { |
0f113f3e MC |
3407 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, |
3408 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
3409 | return 0; | |
3410 | } | |
3411 | } | |
0f113f3e MC |
3412 | return 1; /* all checks are ok */ |
3413 | } | |
ea262260 | 3414 | |
ef236ec3 DSH |
3415 | #endif |
3416 | ||
a398f821 | 3417 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
0f113f3e MC |
3418 | size_t *serverinfo_length) |
3419 | { | |
a497cf25 | 3420 | CERT_PKEY *cpk = s->s3->tmp.cert; |
0f113f3e MC |
3421 | *serverinfo_length = 0; |
3422 | ||
a497cf25 | 3423 | if (cpk == NULL || cpk->serverinfo == NULL) |
0f113f3e MC |
3424 | return 0; |
3425 | ||
a497cf25 DSH |
3426 | *serverinfo = cpk->serverinfo; |
3427 | *serverinfo_length = cpk->serverinfo_length; | |
0f113f3e MC |
3428 | return 1; |
3429 | } | |
0f113f3e MC |
3430 | |
3431 | void ssl_update_cache(SSL *s, int mode) | |
3432 | { | |
3433 | int i; | |
3434 | ||
3435 | /* | |
3436 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
3437 | * would be rather hard to do anyway :-) | |
3438 | */ | |
3439 | if (s->session->session_id_length == 0) | |
3440 | return; | |
3441 | ||
d316cdcf BK |
3442 | /* |
3443 | * If sid_ctx_length is 0 there is no specific application context | |
3444 | * associated with this session, so when we try to resume it and | |
c4fa1f7f BK |
3445 | * SSL_VERIFY_PEER is requested to verify the client identity, we have no |
3446 | * indication that this is actually a session for the proper application | |
3447 | * context, and the *handshake* will fail, not just the resumption attempt. | |
3448 | * Do not cache (on the server) these sessions that are not resumable | |
3449 | * (clients can set SSL_VERIFY_PEER without needing a sid_ctx set). | |
d316cdcf | 3450 | */ |
c4fa1f7f | 3451 | if (s->server && s->session->sid_ctx_length == 0 |
d316cdcf BK |
3452 | && (s->verify_mode & SSL_VERIFY_PEER) != 0) |
3453 | return; | |
3454 | ||
0f113f3e | 3455 | i = s->session_ctx->session_cache_mode; |
5d61491c | 3456 | if ((i & mode) != 0 |
ee94ec2e MC |
3457 | && (!s->hit || SSL_IS_TLS13(s))) { |
3458 | /* | |
3459 | * Add the session to the internal cache. In server side TLSv1.3 we | |
6cc0b3c2 MC |
3460 | * normally don't do this because by default it's a full stateless ticket |
3461 | * with only a dummy session id so there is no reason to cache it, | |
3462 | * unless: | |
ee94ec2e MC |
3463 | * - we are doing early_data, in which case we cache so that we can |
3464 | * detect replays | |
3465 | * - the application has set a remove_session_cb so needs to know about | |
3466 | * session timeout events | |
6cc0b3c2 | 3467 | * - SSL_OP_NO_TICKET is set in which case it is a stateful ticket |
ee94ec2e MC |
3468 | */ |
3469 | if ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) == 0 | |
3470 | && (!SSL_IS_TLS13(s) | |
3471 | || !s->server | |
5d263fb7 MC |
3472 | || (s->max_early_data > 0 |
3473 | && (s->options & SSL_OP_NO_ANTI_REPLAY) == 0) | |
6cc0b3c2 MC |
3474 | || s->session_ctx->remove_session_cb != NULL |
3475 | || (s->options & SSL_OP_NO_TICKET) != 0)) | |
ee94ec2e MC |
3476 | SSL_CTX_add_session(s->session_ctx, s->session); |
3477 | ||
3478 | /* | |
3479 | * Add the session to the external cache. We do this even in server side | |
3480 | * TLSv1.3 without early data because some applications just want to | |
3481 | * know about the creation of a session and aren't doing a full cache. | |
3482 | */ | |
3483 | if (s->session_ctx->new_session_cb != NULL) { | |
3484 | SSL_SESSION_up_ref(s->session); | |
3485 | if (!s->session_ctx->new_session_cb(s, s->session)) | |
3486 | SSL_SESSION_free(s->session); | |
3487 | } | |
0f113f3e MC |
3488 | } |
3489 | ||
3490 | /* auto flush every 255 connections */ | |
3491 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
9ef9088c | 3492 | TSAN_QUALIFIER int *stat; |
1fcb4e4d BK |
3493 | if (mode & SSL_SESS_CACHE_CLIENT) |
3494 | stat = &s->session_ctx->stats.sess_connect_good; | |
3495 | else | |
3496 | stat = &s->session_ctx->stats.sess_accept_good; | |
9ef9088c | 3497 | if ((tsan_load(stat) & 0xff) == 0xff) |
0f113f3e | 3498 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); |
0f113f3e MC |
3499 | } |
3500 | } | |
d02b48c6 | 3501 | |
ba168244 | 3502 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
0f113f3e MC |
3503 | { |
3504 | return ctx->method; | |
3505 | } | |
ba168244 | 3506 | |
4ebb342f | 3507 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
0f113f3e | 3508 | { |
26a7d938 | 3509 | return s->method; |
0f113f3e | 3510 | } |
d02b48c6 | 3511 | |
4ebb342f | 3512 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
0f113f3e | 3513 | { |
0f113f3e MC |
3514 | int ret = 1; |
3515 | ||
3516 | if (s->method != meth) { | |
919ba009 | 3517 | const SSL_METHOD *sm = s->method; |
a230b26e | 3518 | int (*hf) (SSL *) = s->handshake_func; |
0f113f3e | 3519 | |
919ba009 | 3520 | if (sm->version == meth->version) |
0f113f3e MC |
3521 | s->method = meth; |
3522 | else { | |
919ba009 | 3523 | sm->ssl_free(s); |
0f113f3e MC |
3524 | s->method = meth; |
3525 | ret = s->method->ssl_new(s); | |
3526 | } | |
3527 | ||
919ba009 | 3528 | if (hf == sm->ssl_connect) |
0f113f3e | 3529 | s->handshake_func = meth->ssl_connect; |
919ba009 | 3530 | else if (hf == sm->ssl_accept) |
0f113f3e MC |
3531 | s->handshake_func = meth->ssl_accept; |
3532 | } | |
26a7d938 | 3533 | return ret; |
0f113f3e MC |
3534 | } |
3535 | ||
3536 | int SSL_get_error(const SSL *s, int i) | |
3537 | { | |
3538 | int reason; | |
3539 | unsigned long l; | |
3540 | BIO *bio; | |
3541 | ||
3542 | if (i > 0) | |
26a7d938 | 3543 | return SSL_ERROR_NONE; |
0f113f3e MC |
3544 | |
3545 | /* | |
3546 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
3547 | * where we do encode the error | |
3548 | */ | |
3549 | if ((l = ERR_peek_error()) != 0) { | |
3550 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
26a7d938 | 3551 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3552 | else |
26a7d938 | 3553 | return SSL_ERROR_SSL; |
0f113f3e MC |
3554 | } |
3555 | ||
8051ab2b MC |
3556 | if (SSL_want_read(s)) { |
3557 | bio = SSL_get_rbio(s); | |
3558 | if (BIO_should_read(bio)) | |
26a7d938 | 3559 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3560 | else if (BIO_should_write(bio)) |
3561 | /* | |
3562 | * This one doesn't make too much sense ... We never try to write | |
3563 | * to the rbio, and an application program where rbio and wbio | |
3564 | * are separate couldn't even know what it should wait for. | |
3565 | * However if we ever set s->rwstate incorrectly (so that we have | |
3566 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
3567 | * wbio *are* the same, this test works around that bug; so it | |
3568 | * might be safer to keep it. | |
3569 | */ | |
26a7d938 | 3570 | return SSL_ERROR_WANT_WRITE; |
8051ab2b MC |
3571 | else if (BIO_should_io_special(bio)) { |
3572 | reason = BIO_get_retry_reason(bio); | |
3573 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3574 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3575 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3576 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3577 | else |
26a7d938 | 3578 | return SSL_ERROR_SYSCALL; /* unknown */ |
0f113f3e | 3579 | } |
8051ab2b | 3580 | } |
0f113f3e | 3581 | |
8051ab2b | 3582 | if (SSL_want_write(s)) { |
69687aa8 | 3583 | /* Access wbio directly - in order to use the buffered bio if present */ |
8051ab2b MC |
3584 | bio = s->wbio; |
3585 | if (BIO_should_write(bio)) | |
26a7d938 | 3586 | return SSL_ERROR_WANT_WRITE; |
8051ab2b | 3587 | else if (BIO_should_read(bio)) |
2e7dc7cd | 3588 | /* |
8051ab2b | 3589 | * See above (SSL_want_read(s) with BIO_should_write(bio)) |
2e7dc7cd | 3590 | */ |
26a7d938 | 3591 | return SSL_ERROR_WANT_READ; |
8051ab2b MC |
3592 | else if (BIO_should_io_special(bio)) { |
3593 | reason = BIO_get_retry_reason(bio); | |
3594 | if (reason == BIO_RR_CONNECT) | |
26a7d938 | 3595 | return SSL_ERROR_WANT_CONNECT; |
8051ab2b | 3596 | else if (reason == BIO_RR_ACCEPT) |
26a7d938 | 3597 | return SSL_ERROR_WANT_ACCEPT; |
8051ab2b | 3598 | else |
26a7d938 | 3599 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3600 | } |
07bbc92c | 3601 | } |
6b1bb98f | 3602 | if (SSL_want_x509_lookup(s)) |
26a7d938 | 3603 | return SSL_ERROR_WANT_X509_LOOKUP; |
6b1bb98f | 3604 | if (SSL_want_async(s)) |
8051ab2b | 3605 | return SSL_ERROR_WANT_ASYNC; |
6b1bb98f | 3606 | if (SSL_want_async_job(s)) |
8051ab2b | 3607 | return SSL_ERROR_WANT_ASYNC_JOB; |
a9c0d8be DB |
3608 | if (SSL_want_client_hello_cb(s)) |
3609 | return SSL_ERROR_WANT_CLIENT_HELLO_CB; | |
8051ab2b MC |
3610 | |
3611 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
3612 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
26a7d938 | 3613 | return SSL_ERROR_ZERO_RETURN; |
8051ab2b | 3614 | |
26a7d938 | 3615 | return SSL_ERROR_SYSCALL; |
0f113f3e | 3616 | } |
d02b48c6 | 3617 | |
add2f5ca MC |
3618 | static int ssl_do_handshake_intern(void *vargs) |
3619 | { | |
3620 | struct ssl_async_args *args; | |
3621 | SSL *s; | |
3622 | ||
3623 | args = (struct ssl_async_args *)vargs; | |
3624 | s = args->s; | |
3625 | ||
3626 | return s->handshake_func(s); | |
3627 | } | |
3628 | ||
4f43d0e7 | 3629 | int SSL_do_handshake(SSL *s) |
0f113f3e MC |
3630 | { |
3631 | int ret = 1; | |
3632 | ||
3633 | if (s->handshake_func == NULL) { | |
3634 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
add2f5ca | 3635 | return -1; |
0f113f3e MC |
3636 | } |
3637 | ||
3eaa4170 | 3638 | ossl_statem_check_finish_init(s, -1); |
49e7fe12 | 3639 | |
c7f47786 | 3640 | s->method->ssl_renegotiate_check(s, 0); |
0f113f3e MC |
3641 | |
3642 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
e8aa8b6c | 3643 | if ((s->mode & SSL_MODE_ASYNC) && ASYNC_get_current_job() == NULL) { |
add2f5ca MC |
3644 | struct ssl_async_args args; |
3645 | ||
3646 | args.s = s; | |
3647 | ||
7fecbf6f | 3648 | ret = ssl_start_async_job(s, &args, ssl_do_handshake_intern); |
add2f5ca MC |
3649 | } else { |
3650 | ret = s->handshake_func(s); | |
3651 | } | |
0f113f3e | 3652 | } |
add2f5ca | 3653 | return ret; |
0f113f3e MC |
3654 | } |
3655 | ||
4f43d0e7 | 3656 | void SSL_set_accept_state(SSL *s) |
0f113f3e MC |
3657 | { |
3658 | s->server = 1; | |
3659 | s->shutdown = 0; | |
fe3a3291 | 3660 | ossl_statem_clear(s); |
0f113f3e | 3661 | s->handshake_func = s->method->ssl_accept; |
d31fb0b5 | 3662 | clear_ciphers(s); |
0f113f3e | 3663 | } |
d02b48c6 | 3664 | |
4f43d0e7 | 3665 | void SSL_set_connect_state(SSL *s) |
0f113f3e MC |
3666 | { |
3667 | s->server = 0; | |
3668 | s->shutdown = 0; | |
fe3a3291 | 3669 | ossl_statem_clear(s); |
0f113f3e | 3670 | s->handshake_func = s->method->ssl_connect; |
d31fb0b5 | 3671 | clear_ciphers(s); |
0f113f3e | 3672 | } |
d02b48c6 | 3673 | |
4f43d0e7 | 3674 | int ssl_undefined_function(SSL *s) |
0f113f3e MC |
3675 | { |
3676 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3677 | return 0; |
0f113f3e | 3678 | } |
d02b48c6 | 3679 | |
41a15c4f | 3680 | int ssl_undefined_void_function(void) |
0f113f3e MC |
3681 | { |
3682 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
3683 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3684 | return 0; |
0f113f3e | 3685 | } |
41a15c4f | 3686 | |
0821bcd4 | 3687 | int ssl_undefined_const_function(const SSL *s) |
0f113f3e | 3688 | { |
26a7d938 | 3689 | return 0; |
0f113f3e | 3690 | } |
0821bcd4 | 3691 | |
2b8fa1d5 | 3692 | const SSL_METHOD *ssl_bad_method(int ver) |
0f113f3e MC |
3693 | { |
3694 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
26a7d938 | 3695 | return NULL; |
0f113f3e | 3696 | } |
d02b48c6 | 3697 | |
3eb2aff4 | 3698 | const char *ssl_protocol_to_string(int version) |
7d650072 | 3699 | { |
2abacef1 MC |
3700 | switch(version) |
3701 | { | |
3702 | case TLS1_3_VERSION: | |
582a17d6 | 3703 | return "TLSv1.3"; |
2abacef1 MC |
3704 | |
3705 | case TLS1_2_VERSION: | |
7d650072 | 3706 | return "TLSv1.2"; |
2abacef1 MC |
3707 | |
3708 | case TLS1_1_VERSION: | |
7d650072 | 3709 | return "TLSv1.1"; |
2abacef1 MC |
3710 | |
3711 | case TLS1_VERSION: | |
ee3a6c64 | 3712 | return "TLSv1"; |
2abacef1 MC |
3713 | |
3714 | case SSL3_VERSION: | |
7d650072 | 3715 | return "SSLv3"; |
2abacef1 MC |
3716 | |
3717 | case DTLS1_BAD_VER: | |
7d650072 | 3718 | return "DTLSv0.9"; |
2abacef1 MC |
3719 | |
3720 | case DTLS1_VERSION: | |
7d650072 | 3721 | return "DTLSv1"; |
2abacef1 MC |
3722 | |
3723 | case DTLS1_2_VERSION: | |
7d650072 | 3724 | return "DTLSv1.2"; |
2abacef1 MC |
3725 | |
3726 | default: | |
3727 | return "unknown"; | |
3728 | } | |
0f113f3e | 3729 | } |
d02b48c6 | 3730 | |
7d650072 KR |
3731 | const char *SSL_get_version(const SSL *s) |
3732 | { | |
3eb2aff4 | 3733 | return ssl_protocol_to_string(s->version); |
7d650072 KR |
3734 | } |
3735 | ||
98732979 | 3736 | static int dup_ca_names(STACK_OF(X509_NAME) **dst, STACK_OF(X509_NAME) *src) |
0f113f3e MC |
3737 | { |
3738 | STACK_OF(X509_NAME) *sk; | |
3739 | X509_NAME *xn; | |
98732979 MC |
3740 | int i; |
3741 | ||
3742 | if (src == NULL) { | |
3743 | *dst = NULL; | |
3744 | return 1; | |
3745 | } | |
3746 | ||
3747 | if ((sk = sk_X509_NAME_new_null()) == NULL) | |
3748 | return 0; | |
3749 | for (i = 0; i < sk_X509_NAME_num(src); i++) { | |
3750 | xn = X509_NAME_dup(sk_X509_NAME_value(src, i)); | |
3751 | if (xn == NULL) { | |
3752 | sk_X509_NAME_pop_free(sk, X509_NAME_free); | |
3753 | return 0; | |
3754 | } | |
3755 | if (sk_X509_NAME_insert(sk, xn, i) == 0) { | |
3756 | X509_NAME_free(xn); | |
3757 | sk_X509_NAME_pop_free(sk, X509_NAME_free); | |
3758 | return 0; | |
3759 | } | |
3760 | } | |
3761 | *dst = sk; | |
3762 | ||
3763 | return 1; | |
3764 | } | |
3765 | ||
3766 | SSL *SSL_dup(SSL *s) | |
3767 | { | |
0f113f3e MC |
3768 | SSL *ret; |
3769 | int i; | |
3770 | ||
919ba009 VD |
3771 | /* If we're not quiescent, just up_ref! */ |
3772 | if (!SSL_in_init(s) || !SSL_in_before(s)) { | |
2f545ae4 | 3773 | CRYPTO_UP_REF(&s->references, &i, s->lock); |
919ba009 VD |
3774 | return s; |
3775 | } | |
3776 | ||
3777 | /* | |
3778 | * Otherwise, copy configuration state, and session if set. | |
3779 | */ | |
0f113f3e | 3780 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) |
26a7d938 | 3781 | return NULL; |
0f113f3e | 3782 | |
0f113f3e | 3783 | if (s->session != NULL) { |
919ba009 VD |
3784 | /* |
3785 | * Arranges to share the same session via up_ref. This "copies" | |
3786 | * session-id, SSL_METHOD, sid_ctx, and 'cert' | |
3787 | */ | |
61986d32 | 3788 | if (!SSL_copy_session_id(ret, s)) |
17dd65e6 | 3789 | goto err; |
0f113f3e MC |
3790 | } else { |
3791 | /* | |
3792 | * No session has been established yet, so we have to expect that | |
3793 | * s->cert or ret->cert will be changed later -- they should not both | |
3794 | * point to the same object, and thus we can't use | |
3795 | * SSL_copy_session_id. | |
3796 | */ | |
919ba009 VD |
3797 | if (!SSL_set_ssl_method(ret, s->method)) |
3798 | goto err; | |
0f113f3e MC |
3799 | |
3800 | if (s->cert != NULL) { | |
e0e920b1 | 3801 | ssl_cert_free(ret->cert); |
0f113f3e MC |
3802 | ret->cert = ssl_cert_dup(s->cert); |
3803 | if (ret->cert == NULL) | |
3804 | goto err; | |
3805 | } | |
3806 | ||
348240c6 MC |
3807 | if (!SSL_set_session_id_context(ret, s->sid_ctx, |
3808 | (int)s->sid_ctx_length)) | |
69f68237 | 3809 | goto err; |
0f113f3e MC |
3810 | } |
3811 | ||
9f6b22b8 VD |
3812 | if (!ssl_dane_dup(ret, s)) |
3813 | goto err; | |
919ba009 | 3814 | ret->version = s->version; |
0f113f3e MC |
3815 | ret->options = s->options; |
3816 | ret->mode = s->mode; | |
3817 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
3818 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
3819 | ret->msg_callback = s->msg_callback; | |
3820 | ret->msg_callback_arg = s->msg_callback_arg; | |
3821 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
3822 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
3823 | ret->generate_session_id = s->generate_session_id; | |
3824 | ||
3825 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
3826 | ||
0f113f3e MC |
3827 | /* copy app data, a little dangerous perhaps */ |
3828 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
3829 | goto err; | |
3830 | ||
3831 | /* setup rbio, and wbio */ | |
3832 | if (s->rbio != NULL) { | |
3833 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
3834 | goto err; | |
3835 | } | |
3836 | if (s->wbio != NULL) { | |
3837 | if (s->wbio != s->rbio) { | |
3838 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
3839 | goto err; | |
65e2d672 MC |
3840 | } else { |
3841 | BIO_up_ref(ret->rbio); | |
0f113f3e | 3842 | ret->wbio = ret->rbio; |
65e2d672 | 3843 | } |
0f113f3e | 3844 | } |
919ba009 | 3845 | |
0f113f3e | 3846 | ret->server = s->server; |
919ba009 VD |
3847 | if (s->handshake_func) { |
3848 | if (s->server) | |
3849 | SSL_set_accept_state(ret); | |
3850 | else | |
3851 | SSL_set_connect_state(ret); | |
3852 | } | |
0f113f3e | 3853 | ret->shutdown = s->shutdown; |
0f113f3e MC |
3854 | ret->hit = s->hit; |
3855 | ||
a974e64a MC |
3856 | ret->default_passwd_callback = s->default_passwd_callback; |
3857 | ret->default_passwd_callback_userdata = s->default_passwd_callback_userdata; | |
3858 | ||
0f113f3e MC |
3859 | X509_VERIFY_PARAM_inherit(ret->param, s->param); |
3860 | ||
3861 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
3862 | if (s->cipher_list != NULL) { | |
3863 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
3864 | goto err; | |
3865 | } | |
3866 | if (s->cipher_list_by_id != NULL) | |
3867 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
3868 | == NULL) | |
3869 | goto err; | |
3870 | ||
3871 | /* Dup the client_CA list */ | |
98732979 MC |
3872 | if (!dup_ca_names(&ret->ca_names, s->ca_names) |
3873 | || !dup_ca_names(&ret->client_ca_names, s->client_ca_names)) | |
3874 | goto err; | |
3875 | ||
66696478 | 3876 | return ret; |
0f113f3e | 3877 | |
0f113f3e | 3878 | err: |
66696478 RS |
3879 | SSL_free(ret); |
3880 | return NULL; | |
0f113f3e | 3881 | } |
d02b48c6 | 3882 | |
4f43d0e7 | 3883 | void ssl_clear_cipher_ctx(SSL *s) |
0f113f3e MC |
3884 | { |
3885 | if (s->enc_read_ctx != NULL) { | |
846ec07d | 3886 | EVP_CIPHER_CTX_free(s->enc_read_ctx); |
0f113f3e MC |
3887 | s->enc_read_ctx = NULL; |
3888 | } | |
3889 | if (s->enc_write_ctx != NULL) { | |
846ec07d | 3890 | EVP_CIPHER_CTX_free(s->enc_write_ctx); |
0f113f3e MC |
3891 | s->enc_write_ctx = NULL; |
3892 | } | |
09b6c2ef | 3893 | #ifndef OPENSSL_NO_COMP |
efa7dd64 RS |
3894 | COMP_CTX_free(s->expand); |
3895 | s->expand = NULL; | |
3896 | COMP_CTX_free(s->compress); | |
3897 | s->compress = NULL; | |
0f113f3e MC |
3898 | #endif |
3899 | } | |
d02b48c6 | 3900 | |
0821bcd4 | 3901 | X509 *SSL_get_certificate(const SSL *s) |
0f113f3e MC |
3902 | { |
3903 | if (s->cert != NULL) | |
26a7d938 | 3904 | return s->cert->key->x509; |
0f113f3e | 3905 | else |
26a7d938 | 3906 | return NULL; |
0f113f3e | 3907 | } |
d02b48c6 | 3908 | |
a25f9adc | 3909 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
0f113f3e MC |
3910 | { |
3911 | if (s->cert != NULL) | |
26a7d938 | 3912 | return s->cert->key->privatekey; |
0f113f3e | 3913 | else |
26a7d938 | 3914 | return NULL; |
0f113f3e | 3915 | } |
d02b48c6 | 3916 | |
a25f9adc | 3917 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
0f113f3e MC |
3918 | { |
3919 | if (ctx->cert != NULL) | |
3920 | return ctx->cert->key->x509; | |
3921 | else | |
3922 | return NULL; | |
3923 | } | |
a25f9adc DSH |
3924 | |
3925 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
0f113f3e MC |
3926 | { |
3927 | if (ctx->cert != NULL) | |
3928 | return ctx->cert->key->privatekey; | |
3929 | else | |
3930 | return NULL; | |
3931 | } | |
a25f9adc | 3932 | |
babb3798 | 3933 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
0f113f3e MC |
3934 | { |
3935 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
26a7d938 K |
3936 | return s->session->cipher; |
3937 | return NULL; | |
0f113f3e MC |
3938 | } |
3939 | ||
0aed6e44 BK |
3940 | const SSL_CIPHER *SSL_get_pending_cipher(const SSL *s) |
3941 | { | |
3942 | return s->s3->tmp.new_cipher; | |
3943 | } | |
3944 | ||
377dcdba | 3945 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
0f113f3e | 3946 | { |
9a555706 RS |
3947 | #ifndef OPENSSL_NO_COMP |
3948 | return s->compress ? COMP_CTX_get_method(s->compress) : NULL; | |
3949 | #else | |
3950 | return NULL; | |
3951 | #endif | |
0f113f3e | 3952 | } |
377dcdba RL |
3953 | |
3954 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
0f113f3e | 3955 | { |
9a555706 RS |
3956 | #ifndef OPENSSL_NO_COMP |
3957 | return s->expand ? COMP_CTX_get_method(s->expand) : NULL; | |
3958 | #else | |
3959 | return NULL; | |
0f113f3e | 3960 | #endif |
9a555706 | 3961 | } |
0f113f3e | 3962 | |
46417569 | 3963 | int ssl_init_wbio_buffer(SSL *s) |
0f113f3e MC |
3964 | { |
3965 | BIO *bbio; | |
3966 | ||
2e7dc7cd MC |
3967 | if (s->bbio != NULL) { |
3968 | /* Already buffered. */ | |
3969 | return 1; | |
0f113f3e | 3970 | } |
46417569 | 3971 | |
2e7dc7cd MC |
3972 | bbio = BIO_new(BIO_f_buffer()); |
3973 | if (bbio == NULL || !BIO_set_read_buffer_size(bbio, 1)) { | |
3974 | BIO_free(bbio); | |
0f113f3e | 3975 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); |
46417569 | 3976 | return 0; |
0f113f3e | 3977 | } |
2e7dc7cd MC |
3978 | s->bbio = bbio; |
3979 | s->wbio = BIO_push(bbio, s->wbio); | |
46417569 MC |
3980 | |
3981 | return 1; | |
0f113f3e | 3982 | } |
413c4f45 | 3983 | |
b77f3ed1 | 3984 | int ssl_free_wbio_buffer(SSL *s) |
0f113f3e | 3985 | { |
62adbcee | 3986 | /* callers ensure s is never null */ |
0f113f3e | 3987 | if (s->bbio == NULL) |
b77f3ed1 | 3988 | return 1; |
0f113f3e | 3989 | |
2e7dc7cd | 3990 | s->wbio = BIO_pop(s->wbio); |
0f113f3e MC |
3991 | BIO_free(s->bbio); |
3992 | s->bbio = NULL; | |
b77f3ed1 MC |
3993 | |
3994 | return 1; | |
0f113f3e MC |
3995 | } |
3996 | ||
3997 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3998 | { | |
3999 | ctx->quiet_shutdown = mode; | |
4000 | } | |
58964a49 | 4001 | |
0821bcd4 | 4002 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
0f113f3e | 4003 | { |
26a7d938 | 4004 | return ctx->quiet_shutdown; |
0f113f3e | 4005 | } |
58964a49 | 4006 | |
0f113f3e MC |
4007 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
4008 | { | |
4009 | s->quiet_shutdown = mode; | |
4010 | } | |
58964a49 | 4011 | |
0821bcd4 | 4012 | int SSL_get_quiet_shutdown(const SSL *s) |
0f113f3e | 4013 | { |
26a7d938 | 4014 | return s->quiet_shutdown; |
0f113f3e | 4015 | } |
58964a49 | 4016 | |
0f113f3e MC |
4017 | void SSL_set_shutdown(SSL *s, int mode) |
4018 | { | |
4019 | s->shutdown = mode; | |
4020 | } | |
58964a49 | 4021 | |
0821bcd4 | 4022 | int SSL_get_shutdown(const SSL *s) |
0f113f3e | 4023 | { |
6546e9b2 | 4024 | return s->shutdown; |
0f113f3e | 4025 | } |
58964a49 | 4026 | |
0821bcd4 | 4027 | int SSL_version(const SSL *s) |
0f113f3e | 4028 | { |
6546e9b2 AG |
4029 | return s->version; |
4030 | } | |
4031 | ||
4032 | int SSL_client_version(const SSL *s) | |
4033 | { | |
4034 | return s->client_version; | |
0f113f3e | 4035 | } |
58964a49 | 4036 | |
0821bcd4 | 4037 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
0f113f3e | 4038 | { |
6546e9b2 | 4039 | return ssl->ctx; |
0f113f3e MC |
4040 | } |
4041 | ||
4042 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
4043 | { | |
24a0d393 | 4044 | CERT *new_cert; |
0f113f3e MC |
4045 | if (ssl->ctx == ctx) |
4046 | return ssl->ctx; | |
0f113f3e | 4047 | if (ctx == NULL) |
222da979 | 4048 | ctx = ssl->session_ctx; |
24a0d393 KR |
4049 | new_cert = ssl_cert_dup(ctx->cert); |
4050 | if (new_cert == NULL) { | |
4051 | return NULL; | |
0f113f3e | 4052 | } |
21181889 MC |
4053 | |
4054 | if (!custom_exts_copy_flags(&new_cert->custext, &ssl->cert->custext)) { | |
4055 | ssl_cert_free(new_cert); | |
4056 | return NULL; | |
4057 | } | |
4058 | ||
24a0d393 KR |
4059 | ssl_cert_free(ssl->cert); |
4060 | ssl->cert = new_cert; | |
0f113f3e MC |
4061 | |
4062 | /* | |
4063 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
4064 | * so setter APIs must prevent invalid lengths from entering the system. | |
4065 | */ | |
380a522f MC |
4066 | if (!ossl_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx))) |
4067 | return NULL; | |
0f113f3e MC |
4068 | |
4069 | /* | |
4070 | * If the session ID context matches that of the parent SSL_CTX, | |
4071 | * inherit it from the new SSL_CTX as well. If however the context does | |
4072 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
4073 | * leave it unchanged. | |
4074 | */ | |
4075 | if ((ssl->ctx != NULL) && | |
4076 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
4077 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
4078 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
4079 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
4080 | } | |
4081 | ||
16203f7b | 4082 | SSL_CTX_up_ref(ctx); |
a230b26e | 4083 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ |
0f113f3e MC |
4084 | ssl->ctx = ctx; |
4085 | ||
16203f7b | 4086 | return ssl->ctx; |
0f113f3e | 4087 | } |
ed3883d2 | 4088 | |
4f43d0e7 | 4089 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
0f113f3e | 4090 | { |
26a7d938 | 4091 | return X509_STORE_set_default_paths(ctx->cert_store); |
0f113f3e | 4092 | } |
58964a49 | 4093 | |
d84a7b20 MC |
4094 | int SSL_CTX_set_default_verify_dir(SSL_CTX *ctx) |
4095 | { | |
4096 | X509_LOOKUP *lookup; | |
4097 | ||
4098 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_hash_dir()); | |
4099 | if (lookup == NULL) | |
4100 | return 0; | |
4101 | X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT); | |
4102 | ||
4103 | /* Clear any errors if the default directory does not exist */ | |
4104 | ERR_clear_error(); | |
4105 | ||
4106 | return 1; | |
4107 | } | |
4108 | ||
4109 | int SSL_CTX_set_default_verify_file(SSL_CTX *ctx) | |
4110 | { | |
4111 | X509_LOOKUP *lookup; | |
4112 | ||
4113 | lookup = X509_STORE_add_lookup(ctx->cert_store, X509_LOOKUP_file()); | |
4114 | if (lookup == NULL) | |
4115 | return 0; | |
4116 | ||
4117 | X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT); | |
4118 | ||
4119 | /* Clear any errors if the default file does not exist */ | |
4120 | ERR_clear_error(); | |
4121 | ||
4122 | return 1; | |
4123 | } | |
4124 | ||
303c0028 | 4125 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
0f113f3e MC |
4126 | const char *CApath) |
4127 | { | |
26a7d938 | 4128 | return X509_STORE_load_locations(ctx->cert_store, CAfile, CApath); |
0f113f3e | 4129 | } |
58964a49 | 4130 | |
45d87a1f | 4131 | void SSL_set_info_callback(SSL *ssl, |
0f113f3e MC |
4132 | void (*cb) (const SSL *ssl, int type, int val)) |
4133 | { | |
4134 | ssl->info_callback = cb; | |
4135 | } | |
4136 | ||
4137 | /* | |
4138 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
4139 | * pointer. | |
4140 | */ | |
4141 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
4142 | int /* type */ , | |
4143 | int /* val */ ) { | |
4144 | return ssl->info_callback; | |
4145 | } | |
58964a49 | 4146 | |
0f113f3e MC |
4147 | void SSL_set_verify_result(SSL *ssl, long arg) |
4148 | { | |
4149 | ssl->verify_result = arg; | |
4150 | } | |
58964a49 | 4151 | |
0821bcd4 | 4152 | long SSL_get_verify_result(const SSL *ssl) |
0f113f3e | 4153 | { |
26a7d938 | 4154 | return ssl->verify_result; |
0f113f3e MC |
4155 | } |
4156 | ||
d9f1c639 | 4157 | size_t SSL_get_client_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 4158 | { |
6b8f5d0d | 4159 | if (outlen == 0) |
858618e7 NM |
4160 | return sizeof(ssl->s3->client_random); |
4161 | if (outlen > sizeof(ssl->s3->client_random)) | |
4162 | outlen = sizeof(ssl->s3->client_random); | |
4163 | memcpy(out, ssl->s3->client_random, outlen); | |
d9f1c639 | 4164 | return outlen; |
858618e7 NM |
4165 | } |
4166 | ||
d9f1c639 | 4167 | size_t SSL_get_server_random(const SSL *ssl, unsigned char *out, size_t outlen) |
858618e7 | 4168 | { |
6b8f5d0d | 4169 | if (outlen == 0) |
858618e7 NM |
4170 | return sizeof(ssl->s3->server_random); |
4171 | if (outlen > sizeof(ssl->s3->server_random)) | |
4172 | outlen = sizeof(ssl->s3->server_random); | |
4173 | memcpy(out, ssl->s3->server_random, outlen); | |
d9f1c639 | 4174 | return outlen; |
858618e7 NM |
4175 | } |
4176 | ||
d9f1c639 | 4177 | size_t SSL_SESSION_get_master_key(const SSL_SESSION *session, |
a230b26e | 4178 | unsigned char *out, size_t outlen) |
858618e7 | 4179 | { |
d9f1c639 MC |
4180 | if (outlen == 0) |
4181 | return session->master_key_length; | |
8c1a5343 | 4182 | if (outlen > session->master_key_length) |
858618e7 NM |
4183 | outlen = session->master_key_length; |
4184 | memcpy(out, session->master_key, outlen); | |
d9f1c639 | 4185 | return outlen; |
858618e7 NM |
4186 | } |
4187 | ||
725b0f1e | 4188 | int SSL_SESSION_set1_master_key(SSL_SESSION *sess, const unsigned char *in, |
911d63f2 MC |
4189 | size_t len) |
4190 | { | |
4191 | if (len > sizeof(sess->master_key)) | |
4192 | return 0; | |
4193 | ||
4194 | memcpy(sess->master_key, in, len); | |
4195 | sess->master_key_length = len; | |
911d63f2 MC |
4196 | return 1; |
4197 | } | |
4198 | ||
4199 | ||
0f113f3e MC |
4200 | int SSL_set_ex_data(SSL *s, int idx, void *arg) |
4201 | { | |
26a7d938 | 4202 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
4203 | } |
4204 | ||
4205 | void *SSL_get_ex_data(const SSL *s, int idx) | |
4206 | { | |
26a7d938 | 4207 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e MC |
4208 | } |
4209 | ||
0f113f3e MC |
4210 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) |
4211 | { | |
26a7d938 | 4212 | return CRYPTO_set_ex_data(&s->ex_data, idx, arg); |
0f113f3e MC |
4213 | } |
4214 | ||
4215 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
4216 | { | |
26a7d938 | 4217 | return CRYPTO_get_ex_data(&s->ex_data, idx); |
0f113f3e | 4218 | } |
58964a49 | 4219 | |
0821bcd4 | 4220 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
0f113f3e | 4221 | { |
26a7d938 | 4222 | return ctx->cert_store; |
0f113f3e | 4223 | } |
413c4f45 | 4224 | |
0f113f3e MC |
4225 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
4226 | { | |
222561fe | 4227 | X509_STORE_free(ctx->cert_store); |
0f113f3e MC |
4228 | ctx->cert_store = store; |
4229 | } | |
413c4f45 | 4230 | |
b50052db TS |
4231 | void SSL_CTX_set1_cert_store(SSL_CTX *ctx, X509_STORE *store) |
4232 | { | |
4233 | if (store != NULL) | |
4234 | X509_STORE_up_ref(store); | |
4235 | SSL_CTX_set_cert_store(ctx, store); | |
4236 | } | |
4237 | ||
0821bcd4 | 4238 | int SSL_want(const SSL *s) |
0f113f3e | 4239 | { |
26a7d938 | 4240 | return s->rwstate; |
0f113f3e | 4241 | } |
413c4f45 | 4242 | |
0f113f3e | 4243 | /** |
4f43d0e7 BL |
4244 | * \brief Set the callback for generating temporary DH keys. |
4245 | * \param ctx the SSL context. | |
4246 | * \param dh the callback | |
4247 | */ | |
4248 | ||
bc36ee62 | 4249 | #ifndef OPENSSL_NO_DH |
0f113f3e MC |
4250 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
4251 | DH *(*dh) (SSL *ssl, int is_export, | |
4252 | int keylength)) | |
4253 | { | |
4254 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
4255 | } | |
f8c3c05d | 4256 | |
0f113f3e MC |
4257 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
4258 | int keylength)) | |
4259 | { | |
4260 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
4261 | } | |
79df9d62 | 4262 | #endif |
15d21c2d | 4263 | |
ddac1974 NL |
4264 | #ifndef OPENSSL_NO_PSK |
4265 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
0f113f3e MC |
4266 | { |
4267 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
a230b26e | 4268 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); |
0f113f3e MC |
4269 | return 0; |
4270 | } | |
df6da24b | 4271 | OPENSSL_free(ctx->cert->psk_identity_hint); |
0f113f3e | 4272 | if (identity_hint != NULL) { |
7644a9ae | 4273 | ctx->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 4274 | if (ctx->cert->psk_identity_hint == NULL) |
0f113f3e MC |
4275 | return 0; |
4276 | } else | |
df6da24b | 4277 | ctx->cert->psk_identity_hint = NULL; |
0f113f3e MC |
4278 | return 1; |
4279 | } | |
ddac1974 NL |
4280 | |
4281 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
0f113f3e MC |
4282 | { |
4283 | if (s == NULL) | |
4284 | return 0; | |
4285 | ||
0f113f3e MC |
4286 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { |
4287 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
4288 | return 0; | |
4289 | } | |
df6da24b | 4290 | OPENSSL_free(s->cert->psk_identity_hint); |
0f113f3e | 4291 | if (identity_hint != NULL) { |
7644a9ae | 4292 | s->cert->psk_identity_hint = OPENSSL_strdup(identity_hint); |
df6da24b | 4293 | if (s->cert->psk_identity_hint == NULL) |
0f113f3e MC |
4294 | return 0; |
4295 | } else | |
df6da24b | 4296 | s->cert->psk_identity_hint = NULL; |
0f113f3e MC |
4297 | return 1; |
4298 | } | |
ddac1974 NL |
4299 | |
4300 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
0f113f3e MC |
4301 | { |
4302 | if (s == NULL || s->session == NULL) | |
4303 | return NULL; | |
26a7d938 | 4304 | return s->session->psk_identity_hint; |
0f113f3e | 4305 | } |
ddac1974 NL |
4306 | |
4307 | const char *SSL_get_psk_identity(const SSL *s) | |
0f113f3e MC |
4308 | { |
4309 | if (s == NULL || s->session == NULL) | |
4310 | return NULL; | |
26a7d938 | 4311 | return s->session->psk_identity; |
0f113f3e | 4312 | } |
7806f3dd | 4313 | |
8cbfcc70 | 4314 | void SSL_set_psk_client_callback(SSL *s, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4315 | { |
4316 | s->psk_client_callback = cb; | |
4317 | } | |
7806f3dd | 4318 | |
8cbfcc70 | 4319 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, SSL_psk_client_cb_func cb) |
0f113f3e MC |
4320 | { |
4321 | ctx->psk_client_callback = cb; | |
4322 | } | |
7806f3dd | 4323 | |
8cbfcc70 | 4324 | void SSL_set_psk_server_callback(SSL *s, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4325 | { |
4326 | s->psk_server_callback = cb; | |
4327 | } | |
7806f3dd | 4328 | |
8cbfcc70 | 4329 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, SSL_psk_server_cb_func cb) |
0f113f3e MC |
4330 | { |
4331 | ctx->psk_server_callback = cb; | |
4332 | } | |
4333 | #endif | |
4334 | ||
f46184bd MC |
4335 | void SSL_set_psk_find_session_callback(SSL *s, SSL_psk_find_session_cb_func cb) |
4336 | { | |
4337 | s->psk_find_session_cb = cb; | |
4338 | } | |
4339 | ||
4340 | void SSL_CTX_set_psk_find_session_callback(SSL_CTX *ctx, | |
4341 | SSL_psk_find_session_cb_func cb) | |
4342 | { | |
4343 | ctx->psk_find_session_cb = cb; | |
4344 | } | |
4345 | ||
4346 | void SSL_set_psk_use_session_callback(SSL *s, SSL_psk_use_session_cb_func cb) | |
4347 | { | |
4348 | s->psk_use_session_cb = cb; | |
4349 | } | |
4350 | ||
4351 | void SSL_CTX_set_psk_use_session_callback(SSL_CTX *ctx, | |
4352 | SSL_psk_use_session_cb_func cb) | |
4353 | { | |
4354 | ctx->psk_use_session_cb = cb; | |
4355 | } | |
4356 | ||
0f113f3e MC |
4357 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, |
4358 | void (*cb) (int write_p, int version, | |
4359 | int content_type, const void *buf, | |
4360 | size_t len, SSL *ssl, void *arg)) | |
4361 | { | |
4362 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4363 | } | |
4364 | ||
4365 | void SSL_set_msg_callback(SSL *ssl, | |
4366 | void (*cb) (int write_p, int version, | |
4367 | int content_type, const void *buf, | |
4368 | size_t len, SSL *ssl, void *arg)) | |
4369 | { | |
4370 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
4371 | } | |
a661b653 | 4372 | |
7c2d4fee | 4373 | void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, |
0f113f3e MC |
4374 | int (*cb) (SSL *ssl, |
4375 | int | |
4376 | is_forward_secure)) | |
4377 | { | |
4378 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4379 | (void (*)(void))cb); | |
4380 | } | |
4381 | ||
7c2d4fee | 4382 | void SSL_set_not_resumable_session_callback(SSL *ssl, |
0f113f3e MC |
4383 | int (*cb) (SSL *ssl, |
4384 | int is_forward_secure)) | |
4385 | { | |
4386 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_NOT_RESUMABLE_SESS_CB, | |
4387 | (void (*)(void))cb); | |
4388 | } | |
4389 | ||
c649d10d TS |
4390 | void SSL_CTX_set_record_padding_callback(SSL_CTX *ctx, |
4391 | size_t (*cb) (SSL *ssl, int type, | |
4392 | size_t len, void *arg)) | |
4393 | { | |
4394 | ctx->record_padding_cb = cb; | |
4395 | } | |
4396 | ||
4397 | void SSL_CTX_set_record_padding_callback_arg(SSL_CTX *ctx, void *arg) | |
4398 | { | |
4399 | ctx->record_padding_arg = arg; | |
4400 | } | |
4401 | ||
4402 | void *SSL_CTX_get_record_padding_callback_arg(SSL_CTX *ctx) | |
4403 | { | |
4404 | return ctx->record_padding_arg; | |
4405 | } | |
4406 | ||
4407 | int SSL_CTX_set_block_padding(SSL_CTX *ctx, size_t block_size) | |
4408 | { | |
4409 | /* block size of 0 or 1 is basically no padding */ | |
4410 | if (block_size == 1) | |
4411 | ctx->block_padding = 0; | |
4412 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4413 | ctx->block_padding = block_size; | |
4414 | else | |
4415 | return 0; | |
4416 | return 1; | |
4417 | } | |
4418 | ||
4419 | void SSL_set_record_padding_callback(SSL *ssl, | |
4420 | size_t (*cb) (SSL *ssl, int type, | |
4421 | size_t len, void *arg)) | |
4422 | { | |
4423 | ssl->record_padding_cb = cb; | |
4424 | } | |
4425 | ||
4426 | void SSL_set_record_padding_callback_arg(SSL *ssl, void *arg) | |
4427 | { | |
4428 | ssl->record_padding_arg = arg; | |
4429 | } | |
4430 | ||
4431 | void *SSL_get_record_padding_callback_arg(SSL *ssl) | |
4432 | { | |
4433 | return ssl->record_padding_arg; | |
4434 | } | |
4435 | ||
4436 | int SSL_set_block_padding(SSL *ssl, size_t block_size) | |
4437 | { | |
4438 | /* block size of 0 or 1 is basically no padding */ | |
4439 | if (block_size == 1) | |
4440 | ssl->block_padding = 0; | |
4441 | else if (block_size <= SSL3_RT_MAX_PLAIN_LENGTH) | |
4442 | ssl->block_padding = block_size; | |
4443 | else | |
4444 | return 0; | |
4445 | return 1; | |
4446 | } | |
4447 | ||
9d0a8bb7 MC |
4448 | int SSL_set_num_tickets(SSL *s, size_t num_tickets) |
4449 | { | |
4450 | s->num_tickets = num_tickets; | |
4451 | ||
4452 | return 1; | |
4453 | } | |
4454 | ||
4455 | size_t SSL_get_num_tickets(SSL *s) | |
4456 | { | |
4457 | return s->num_tickets; | |
4458 | } | |
4459 | ||
4460 | int SSL_CTX_set_num_tickets(SSL_CTX *ctx, size_t num_tickets) | |
4461 | { | |
4462 | ctx->num_tickets = num_tickets; | |
4463 | ||
4464 | return 1; | |
4465 | } | |
4466 | ||
4467 | size_t SSL_CTX_get_num_tickets(SSL_CTX *ctx) | |
4468 | { | |
4469 | return ctx->num_tickets; | |
4470 | } | |
4471 | ||
0f113f3e MC |
4472 | /* |
4473 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
8483a003 | 4474 | * variable, freeing EVP_MD_CTX previously stored in that variable, if any. |
69687aa8 | 4475 | * If EVP_MD pointer is passed, initializes ctx with this |md|. |
48722ff5 | 4476 | * Returns the newly allocated ctx; |
8671b898 | 4477 | */ |
b948e2c5 | 4478 | |
0f113f3e | 4479 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 4480 | { |
0f113f3e | 4481 | ssl_clear_hash_ctx(hash); |
bfb0641f | 4482 | *hash = EVP_MD_CTX_new(); |
5f3d93e4 | 4483 | if (*hash == NULL || (md && EVP_DigestInit_ex(*hash, md, NULL) <= 0)) { |
bfb0641f | 4484 | EVP_MD_CTX_free(*hash); |
5f3d93e4 MC |
4485 | *hash = NULL; |
4486 | return NULL; | |
4487 | } | |
0f113f3e | 4488 | return *hash; |
b948e2c5 | 4489 | } |
0f113f3e MC |
4490 | |
4491 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
4492 | { |
4493 | ||
0d9824c1 | 4494 | EVP_MD_CTX_free(*hash); |
0f113f3e | 4495 | *hash = NULL; |
b948e2c5 | 4496 | } |
a661b653 | 4497 | |
48fbcbac | 4498 | /* Retrieve handshake hashes */ |
8c1a5343 MC |
4499 | int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
4500 | size_t *hashlen) | |
48fbcbac | 4501 | { |
6e59a892 | 4502 | EVP_MD_CTX *ctx = NULL; |
28ba2541 | 4503 | EVP_MD_CTX *hdgst = s->s3->handshake_dgst; |
8c1a5343 MC |
4504 | int hashleni = EVP_MD_CTX_size(hdgst); |
4505 | int ret = 0; | |
4506 | ||
f63a17d6 MC |
4507 | if (hashleni < 0 || (size_t)hashleni > outlen) { |
4508 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH, | |
4509 | ERR_R_INTERNAL_ERROR); | |
28ba2541 | 4510 | goto err; |
f63a17d6 | 4511 | } |
8c1a5343 | 4512 | |
bfb0641f | 4513 | ctx = EVP_MD_CTX_new(); |
8c1a5343 | 4514 | if (ctx == NULL) |
6e59a892 | 4515 | goto err; |
8c1a5343 | 4516 | |
6e59a892 | 4517 | if (!EVP_MD_CTX_copy_ex(ctx, hdgst) |
f63a17d6 MC |
4518 | || EVP_DigestFinal_ex(ctx, out, NULL) <= 0) { |
4519 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_HANDSHAKE_HASH, | |
4520 | ERR_R_INTERNAL_ERROR); | |
8c1a5343 | 4521 | goto err; |
f63a17d6 | 4522 | } |
8c1a5343 MC |
4523 | |
4524 | *hashlen = hashleni; | |
4525 | ||
4526 | ret = 1; | |
48fbcbac | 4527 | err: |
bfb0641f | 4528 | EVP_MD_CTX_free(ctx); |
48fbcbac DSH |
4529 | return ret; |
4530 | } | |
4531 | ||
b577fd0b | 4532 | int SSL_session_reused(SSL *s) |
0f113f3e MC |
4533 | { |
4534 | return s->hit; | |
4535 | } | |
08557cf2 | 4536 | |
69443116 | 4537 | int SSL_is_server(const SSL *s) |
0f113f3e MC |
4538 | { |
4539 | return s->server; | |
4540 | } | |
87adf1fa | 4541 | |
fcd2d5a6 | 4542 | #if !OPENSSL_API_1_1_0 |
47153c72 RS |
4543 | void SSL_set_debug(SSL *s, int debug) |
4544 | { | |
4545 | /* Old function was do-nothing anyway... */ | |
4546 | (void)s; | |
4547 | (void)debug; | |
4548 | } | |
4549 | #endif | |
4550 | ||
b362ccab | 4551 | void SSL_set_security_level(SSL *s, int level) |
0f113f3e MC |
4552 | { |
4553 | s->cert->sec_level = level; | |
4554 | } | |
b362ccab DSH |
4555 | |
4556 | int SSL_get_security_level(const SSL *s) | |
0f113f3e MC |
4557 | { |
4558 | return s->cert->sec_level; | |
4559 | } | |
b362ccab | 4560 | |
0f113f3e | 4561 | void SSL_set_security_callback(SSL *s, |
a230b26e EK |
4562 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4563 | int op, int bits, int nid, | |
4564 | void *other, void *ex)) | |
0f113f3e MC |
4565 | { |
4566 | s->cert->sec_cb = cb; | |
4567 | } | |
b362ccab | 4568 | |
a230b26e EK |
4569 | int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, |
4570 | const SSL_CTX *ctx, int op, | |
4571 | int bits, int nid, void *other, | |
4572 | void *ex) { | |
0f113f3e MC |
4573 | return s->cert->sec_cb; |
4574 | } | |
b362ccab DSH |
4575 | |
4576 | void SSL_set0_security_ex_data(SSL *s, void *ex) | |
0f113f3e MC |
4577 | { |
4578 | s->cert->sec_ex = ex; | |
4579 | } | |
b362ccab DSH |
4580 | |
4581 | void *SSL_get0_security_ex_data(const SSL *s) | |
0f113f3e MC |
4582 | { |
4583 | return s->cert->sec_ex; | |
4584 | } | |
b362ccab DSH |
4585 | |
4586 | void SSL_CTX_set_security_level(SSL_CTX *ctx, int level) | |
0f113f3e MC |
4587 | { |
4588 | ctx->cert->sec_level = level; | |
4589 | } | |
b362ccab DSH |
4590 | |
4591 | int SSL_CTX_get_security_level(const SSL_CTX *ctx) | |
0f113f3e MC |
4592 | { |
4593 | return ctx->cert->sec_level; | |
4594 | } | |
b362ccab | 4595 | |
0f113f3e | 4596 | void SSL_CTX_set_security_callback(SSL_CTX *ctx, |
a230b26e EK |
4597 | int (*cb) (const SSL *s, const SSL_CTX *ctx, |
4598 | int op, int bits, int nid, | |
4599 | void *other, void *ex)) | |
0f113f3e MC |
4600 | { |
4601 | ctx->cert->sec_cb = cb; | |
4602 | } | |
b362ccab | 4603 | |
e4646a89 KR |
4604 | int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s, |
4605 | const SSL_CTX *ctx, | |
0f113f3e MC |
4606 | int op, int bits, |
4607 | int nid, | |
4608 | void *other, | |
4609 | void *ex) { | |
4610 | return ctx->cert->sec_cb; | |
4611 | } | |
b362ccab DSH |
4612 | |
4613 | void SSL_CTX_set0_security_ex_data(SSL_CTX *ctx, void *ex) | |
0f113f3e MC |
4614 | { |
4615 | ctx->cert->sec_ex = ex; | |
4616 | } | |
b362ccab DSH |
4617 | |
4618 | void *SSL_CTX_get0_security_ex_data(const SSL_CTX *ctx) | |
0f113f3e MC |
4619 | { |
4620 | return ctx->cert->sec_ex; | |
4621 | } | |
b362ccab | 4622 | |
8106cb8b VD |
4623 | /* |
4624 | * Get/Set/Clear options in SSL_CTX or SSL, formerly macros, now functions that | |
4625 | * can return unsigned long, instead of the generic long return value from the | |
4626 | * control interface. | |
4627 | */ | |
4628 | unsigned long SSL_CTX_get_options(const SSL_CTX *ctx) | |
4629 | { | |
4630 | return ctx->options; | |
4631 | } | |
a230b26e EK |
4632 | |
4633 | unsigned long SSL_get_options(const SSL *s) | |
8106cb8b VD |
4634 | { |
4635 | return s->options; | |
4636 | } | |
a230b26e | 4637 | |
8106cb8b VD |
4638 | unsigned long SSL_CTX_set_options(SSL_CTX *ctx, unsigned long op) |
4639 | { | |
4640 | return ctx->options |= op; | |
4641 | } | |
a230b26e | 4642 | |
8106cb8b VD |
4643 | unsigned long SSL_set_options(SSL *s, unsigned long op) |
4644 | { | |
4645 | return s->options |= op; | |
4646 | } | |
a230b26e | 4647 | |
8106cb8b VD |
4648 | unsigned long SSL_CTX_clear_options(SSL_CTX *ctx, unsigned long op) |
4649 | { | |
4650 | return ctx->options &= ~op; | |
4651 | } | |
a230b26e | 4652 | |
8106cb8b VD |
4653 | unsigned long SSL_clear_options(SSL *s, unsigned long op) |
4654 | { | |
4655 | return s->options &= ~op; | |
4656 | } | |
4657 | ||
696178ed DSH |
4658 | STACK_OF(X509) *SSL_get0_verified_chain(const SSL *s) |
4659 | { | |
4660 | return s->verified_chain; | |
4661 | } | |
4662 | ||
0f113f3e | 4663 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |
ed29e82a RP |
4664 | |
4665 | #ifndef OPENSSL_NO_CT | |
4666 | ||
4667 | /* | |
4668 | * Moves SCTs from the |src| stack to the |dst| stack. | |
4669 | * The source of each SCT will be set to |origin|. | |
4670 | * If |dst| points to a NULL pointer, a new stack will be created and owned by | |
4671 | * the caller. | |
4672 | * Returns the number of SCTs moved, or a negative integer if an error occurs. | |
4673 | */ | |
a230b26e EK |
4674 | static int ct_move_scts(STACK_OF(SCT) **dst, STACK_OF(SCT) *src, |
4675 | sct_source_t origin) | |
ed29e82a RP |
4676 | { |
4677 | int scts_moved = 0; | |
4678 | SCT *sct = NULL; | |
4679 | ||
4680 | if (*dst == NULL) { | |
4681 | *dst = sk_SCT_new_null(); | |
4682 | if (*dst == NULL) { | |
4683 | SSLerr(SSL_F_CT_MOVE_SCTS, ERR_R_MALLOC_FAILURE); | |
4684 | goto err; | |
4685 | } | |
4686 | } | |
4687 | ||
4688 | while ((sct = sk_SCT_pop(src)) != NULL) { | |
4689 | if (SCT_set_source(sct, origin) != 1) | |
4690 | goto err; | |
4691 | ||
4692 | if (sk_SCT_push(*dst, sct) <= 0) | |
4693 | goto err; | |
4694 | scts_moved += 1; | |
4695 | } | |
4696 | ||
4697 | return scts_moved; | |
a230b26e | 4698 | err: |
ed29e82a | 4699 | if (sct != NULL) |
a230b26e | 4700 | sk_SCT_push(src, sct); /* Put the SCT back */ |
cc7113e8 | 4701 | return -1; |
ed29e82a RP |
4702 | } |
4703 | ||
4704 | /* | |
a230b26e | 4705 | * Look for data collected during ServerHello and parse if found. |
6b13bd1d | 4706 | * Returns the number of SCTs extracted. |
a230b26e | 4707 | */ |
ed29e82a RP |
4708 | static int ct_extract_tls_extension_scts(SSL *s) |
4709 | { | |
4710 | int scts_extracted = 0; | |
4711 | ||
aff8c126 RS |
4712 | if (s->ext.scts != NULL) { |
4713 | const unsigned char *p = s->ext.scts; | |
4714 | STACK_OF(SCT) *scts = o2i_SCT_LIST(NULL, &p, s->ext.scts_len); | |
ed29e82a RP |
4715 | |
4716 | scts_extracted = ct_move_scts(&s->scts, scts, SCT_SOURCE_TLS_EXTENSION); | |
4717 | ||
4718 | SCT_LIST_free(scts); | |
4719 | } | |
4720 | ||
4721 | return scts_extracted; | |
4722 | } | |
4723 | ||
4724 | /* | |
4725 | * Checks for an OCSP response and then attempts to extract any SCTs found if it | |
4726 | * contains an SCT X509 extension. They will be stored in |s->scts|. | |
4727 | * Returns: | |
4728 | * - The number of SCTs extracted, assuming an OCSP response exists. | |
4729 | * - 0 if no OCSP response exists or it contains no SCTs. | |
4730 | * - A negative integer if an error occurs. | |
4731 | */ | |
4732 | static int ct_extract_ocsp_response_scts(SSL *s) | |
4733 | { | |
a230b26e | 4734 | # ifndef OPENSSL_NO_OCSP |
ed29e82a RP |
4735 | int scts_extracted = 0; |
4736 | const unsigned char *p; | |
4737 | OCSP_BASICRESP *br = NULL; | |
4738 | OCSP_RESPONSE *rsp = NULL; | |
4739 | STACK_OF(SCT) *scts = NULL; | |
4740 | int i; | |
4741 | ||
aff8c126 | 4742 | if (s->ext.ocsp.resp == NULL || s->ext.ocsp.resp_len == 0) |
ed29e82a RP |
4743 | goto err; |
4744 | ||
aff8c126 RS |
4745 | p = s->ext.ocsp.resp; |
4746 | rsp = d2i_OCSP_RESPONSE(NULL, &p, (int)s->ext.ocsp.resp_len); | |
ed29e82a RP |
4747 | if (rsp == NULL) |
4748 | goto err; | |
4749 | ||
4750 | br = OCSP_response_get1_basic(rsp); | |
4751 | if (br == NULL) | |
4752 | goto err; | |
4753 | ||
4754 | for (i = 0; i < OCSP_resp_count(br); ++i) { | |
4755 | OCSP_SINGLERESP *single = OCSP_resp_get0(br, i); | |
4756 | ||
4757 | if (single == NULL) | |
4758 | continue; | |
4759 | ||
a230b26e EK |
4760 | scts = |
4761 | OCSP_SINGLERESP_get1_ext_d2i(single, NID_ct_cert_scts, NULL, NULL); | |
4762 | scts_extracted = | |
4763 | ct_move_scts(&s->scts, scts, SCT_SOURCE_OCSP_STAPLED_RESPONSE); | |
ed29e82a RP |
4764 | if (scts_extracted < 0) |
4765 | goto err; | |
4766 | } | |
a230b26e | 4767 | err: |
ed29e82a RP |
4768 | SCT_LIST_free(scts); |
4769 | OCSP_BASICRESP_free(br); | |
4770 | OCSP_RESPONSE_free(rsp); | |
4771 | return scts_extracted; | |
a230b26e | 4772 | # else |
3e41ac35 MC |
4773 | /* Behave as if no OCSP response exists */ |
4774 | return 0; | |
a230b26e | 4775 | # endif |
ed29e82a RP |
4776 | } |
4777 | ||
4778 | /* | |
4779 | * Attempts to extract SCTs from the peer certificate. | |
4780 | * Return the number of SCTs extracted, or a negative integer if an error | |
4781 | * occurs. | |
4782 | */ | |
4783 | static int ct_extract_x509v3_extension_scts(SSL *s) | |
4784 | { | |
4785 | int scts_extracted = 0; | |
3f3c7d26 | 4786 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
ed29e82a RP |
4787 | |
4788 | if (cert != NULL) { | |
4789 | STACK_OF(SCT) *scts = | |
4790 | X509_get_ext_d2i(cert, NID_ct_precert_scts, NULL, NULL); | |
4791 | ||
4792 | scts_extracted = | |
4793 | ct_move_scts(&s->scts, scts, SCT_SOURCE_X509V3_EXTENSION); | |
4794 | ||
4795 | SCT_LIST_free(scts); | |
4796 | } | |
4797 | ||
4798 | return scts_extracted; | |
4799 | } | |
4800 | ||
4801 | /* | |
4802 | * Attempts to find all received SCTs by checking TLS extensions, the OCSP | |
4803 | * response (if it exists) and X509v3 extensions in the certificate. | |
4804 | * Returns NULL if an error occurs. | |
4805 | */ | |
4806 | const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s) | |
4807 | { | |
4808 | if (!s->scts_parsed) { | |
4809 | if (ct_extract_tls_extension_scts(s) < 0 || | |
4810 | ct_extract_ocsp_response_scts(s) < 0 || | |
4811 | ct_extract_x509v3_extension_scts(s) < 0) | |
4812 | goto err; | |
4813 | ||
4814 | s->scts_parsed = 1; | |
4815 | } | |
4816 | return s->scts; | |
a230b26e | 4817 | err: |
ed29e82a RP |
4818 | return NULL; |
4819 | } | |
4820 | ||
a230b26e | 4821 | static int ct_permissive(const CT_POLICY_EVAL_CTX * ctx, |
43341433 | 4822 | const STACK_OF(SCT) *scts, void *unused_arg) |
ed29e82a | 4823 | { |
43341433 VD |
4824 | return 1; |
4825 | } | |
4826 | ||
a230b26e | 4827 | static int ct_strict(const CT_POLICY_EVAL_CTX * ctx, |
43341433 VD |
4828 | const STACK_OF(SCT) *scts, void *unused_arg) |
4829 | { | |
4830 | int count = scts != NULL ? sk_SCT_num(scts) : 0; | |
4831 | int i; | |
ed29e82a | 4832 | |
43341433 VD |
4833 | for (i = 0; i < count; ++i) { |
4834 | SCT *sct = sk_SCT_value(scts, i); | |
4835 | int status = SCT_get_validation_status(sct); | |
4836 | ||
4837 | if (status == SCT_VALIDATION_STATUS_VALID) | |
4838 | return 1; | |
4839 | } | |
4840 | SSLerr(SSL_F_CT_STRICT, SSL_R_NO_VALID_SCTS); | |
4841 | return 0; | |
4842 | } | |
4843 | ||
4844 | int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback, | |
4845 | void *arg) | |
4846 | { | |
ed29e82a RP |
4847 | /* |
4848 | * Since code exists that uses the custom extension handler for CT, look | |
4849 | * for this and throw an error if they have already registered to use CT. | |
4850 | */ | |
4851 | if (callback != NULL && SSL_CTX_has_client_custom_ext(s->ctx, | |
a230b26e EK |
4852 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4853 | { | |
ed29e82a RP |
4854 | SSLerr(SSL_F_SSL_SET_CT_VALIDATION_CALLBACK, |
4855 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4856 | return 0; |
ed29e82a RP |
4857 | } |
4858 | ||
ed29e82a | 4859 | if (callback != NULL) { |
a230b26e EK |
4860 | /* |
4861 | * If we are validating CT, then we MUST accept SCTs served via OCSP | |
4862 | */ | |
ed29e82a | 4863 | if (!SSL_set_tlsext_status_type(s, TLSEXT_STATUSTYPE_ocsp)) |
43341433 | 4864 | return 0; |
ed29e82a RP |
4865 | } |
4866 | ||
43341433 VD |
4867 | s->ct_validation_callback = callback; |
4868 | s->ct_validation_callback_arg = arg; | |
4869 | ||
4870 | return 1; | |
ed29e82a RP |
4871 | } |
4872 | ||
43341433 | 4873 | int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx, |
a230b26e | 4874 | ssl_ct_validation_cb callback, void *arg) |
ed29e82a | 4875 | { |
ed29e82a RP |
4876 | /* |
4877 | * Since code exists that uses the custom extension handler for CT, look for | |
4878 | * this and throw an error if they have already registered to use CT. | |
4879 | */ | |
4880 | if (callback != NULL && SSL_CTX_has_client_custom_ext(ctx, | |
a230b26e EK |
4881 | TLSEXT_TYPE_signed_certificate_timestamp)) |
4882 | { | |
ed29e82a RP |
4883 | SSLerr(SSL_F_SSL_CTX_SET_CT_VALIDATION_CALLBACK, |
4884 | SSL_R_CUSTOM_EXT_HANDLER_ALREADY_INSTALLED); | |
43341433 | 4885 | return 0; |
ed29e82a RP |
4886 | } |
4887 | ||
4888 | ctx->ct_validation_callback = callback; | |
4889 | ctx->ct_validation_callback_arg = arg; | |
43341433 | 4890 | return 1; |
ed29e82a RP |
4891 | } |
4892 | ||
43341433 | 4893 | int SSL_ct_is_enabled(const SSL *s) |
ed29e82a | 4894 | { |
43341433 | 4895 | return s->ct_validation_callback != NULL; |
ed29e82a RP |
4896 | } |
4897 | ||
43341433 | 4898 | int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx) |
ed29e82a | 4899 | { |
43341433 | 4900 | return ctx->ct_validation_callback != NULL; |
ed29e82a RP |
4901 | } |
4902 | ||
4d482ee2 | 4903 | int ssl_validate_ct(SSL *s) |
ed29e82a RP |
4904 | { |
4905 | int ret = 0; | |
3f3c7d26 | 4906 | X509 *cert = s->session != NULL ? s->session->peer : NULL; |
43341433 | 4907 | X509 *issuer; |
b9aec69a | 4908 | SSL_DANE *dane = &s->dane; |
ed29e82a RP |
4909 | CT_POLICY_EVAL_CTX *ctx = NULL; |
4910 | const STACK_OF(SCT) *scts; | |
4911 | ||
43341433 VD |
4912 | /* |
4913 | * If no callback is set, the peer is anonymous, or its chain is invalid, | |
4914 | * skip SCT validation - just return success. Applications that continue | |
4915 | * handshakes without certificates, with unverified chains, or pinned leaf | |
4916 | * certificates are outside the scope of the WebPKI and CT. | |
4917 | * | |
4918 | * The above exclusions notwithstanding the vast majority of peers will | |
4919 | * have rather ordinary certificate chains validated by typical | |
4920 | * applications that perform certificate verification and therefore will | |
4921 | * process SCTs when enabled. | |
4922 | */ | |
4923 | if (s->ct_validation_callback == NULL || cert == NULL || | |
4924 | s->verify_result != X509_V_OK || | |
a230b26e | 4925 | s->verified_chain == NULL || sk_X509_num(s->verified_chain) <= 1) |
ed29e82a RP |
4926 | return 1; |
4927 | ||
43341433 VD |
4928 | /* |
4929 | * CT not applicable for chains validated via DANE-TA(2) or DANE-EE(3) | |
4930 | * trust-anchors. See https://tools.ietf.org/html/rfc7671#section-4.2 | |
4931 | */ | |
4932 | if (DANETLS_ENABLED(dane) && dane->mtlsa != NULL) { | |
4933 | switch (dane->mtlsa->usage) { | |
4934 | case DANETLS_USAGE_DANE_TA: | |
4935 | case DANETLS_USAGE_DANE_EE: | |
4936 | return 1; | |
4937 | } | |
ed29e82a RP |
4938 | } |
4939 | ||
ed29e82a RP |
4940 | ctx = CT_POLICY_EVAL_CTX_new(); |
4941 | if (ctx == NULL) { | |
f63a17d6 MC |
4942 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_VALIDATE_CT, |
4943 | ERR_R_MALLOC_FAILURE); | |
ed29e82a RP |
4944 | goto end; |
4945 | } | |
4946 | ||
43341433 | 4947 | issuer = sk_X509_value(s->verified_chain, 1); |
a1bb7708 RP |
4948 | CT_POLICY_EVAL_CTX_set1_cert(ctx, cert); |
4949 | CT_POLICY_EVAL_CTX_set1_issuer(ctx, issuer); | |
4950 | CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(ctx, s->ctx->ctlog_store); | |
6a71e06d RP |
4951 | CT_POLICY_EVAL_CTX_set_time( |
4952 | ctx, (uint64_t)SSL_SESSION_get_time(SSL_get0_session(s)) * 1000); | |
ed29e82a RP |
4953 | |
4954 | scts = SSL_get0_peer_scts(s); | |
4955 | ||
43341433 VD |
4956 | /* |
4957 | * This function returns success (> 0) only when all the SCTs are valid, 0 | |
4958 | * when some are invalid, and < 0 on various internal errors (out of | |
4959 | * memory, etc.). Having some, or even all, invalid SCTs is not sufficient | |
4960 | * reason to abort the handshake, that decision is up to the callback. | |
4961 | * Therefore, we error out only in the unexpected case that the return | |
4962 | * value is negative. | |
4963 | * | |
4964 | * XXX: One might well argue that the return value of this function is an | |
f430ba31 | 4965 | * unfortunate design choice. Its job is only to determine the validation |
43341433 VD |
4966 | * status of each of the provided SCTs. So long as it correctly separates |
4967 | * the wheat from the chaff it should return success. Failure in this case | |
4968 | * ought to correspond to an inability to carry out its duties. | |
4969 | */ | |
4970 | if (SCT_LIST_validate(scts, ctx) < 0) { | |
f63a17d6 MC |
4971 | SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT, |
4972 | SSL_R_SCT_VERIFICATION_FAILED); | |
ed29e82a RP |
4973 | goto end; |
4974 | } | |
4975 | ||
4976 | ret = s->ct_validation_callback(ctx, scts, s->ct_validation_callback_arg); | |
4977 | if (ret < 0) | |
a230b26e | 4978 | ret = 0; /* This function returns 0 on failure */ |
f63a17d6 MC |
4979 | if (!ret) |
4980 | SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_SSL_VALIDATE_CT, | |
4981 | SSL_R_CALLBACK_FAILED); | |
ed29e82a | 4982 | |
a230b26e | 4983 | end: |
ed29e82a | 4984 | CT_POLICY_EVAL_CTX_free(ctx); |
f75b34c8 VD |
4985 | /* |
4986 | * With SSL_VERIFY_NONE the session may be cached and re-used despite a | |
4987 | * failure return code here. Also the application may wish the complete | |
4988 | * the handshake, and then disconnect cleanly at a higher layer, after | |
4989 | * checking the verification status of the completed connection. | |
4990 | * | |
4991 | * We therefore force a certificate verification failure which will be | |
4992 | * visible via SSL_get_verify_result() and cached as part of any resumed | |
4993 | * session. | |
4994 | * | |
4995 | * Note: the permissive callback is for information gathering only, always | |
4996 | * returns success, and does not affect verification status. Only the | |
4997 | * strict callback or a custom application-specified callback can trigger | |
4998 | * connection failure or record a verification error. | |
4999 | */ | |
5000 | if (ret <= 0) | |
5001 | s->verify_result = X509_V_ERR_NO_VALID_SCTS; | |
ed29e82a RP |
5002 | return ret; |
5003 | } | |
5004 | ||
43341433 VD |
5005 | int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode) |
5006 | { | |
5007 | switch (validation_mode) { | |
5008 | default: | |
5009 | SSLerr(SSL_F_SSL_CTX_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
5010 | return 0; | |
5011 | case SSL_CT_VALIDATION_PERMISSIVE: | |
5012 | return SSL_CTX_set_ct_validation_callback(ctx, ct_permissive, NULL); | |
5013 | case SSL_CT_VALIDATION_STRICT: | |
5014 | return SSL_CTX_set_ct_validation_callback(ctx, ct_strict, NULL); | |
5015 | } | |
5016 | } | |
5017 | ||
5018 | int SSL_enable_ct(SSL *s, int validation_mode) | |
5019 | { | |
5020 | switch (validation_mode) { | |
5021 | default: | |
5022 | SSLerr(SSL_F_SSL_ENABLE_CT, SSL_R_INVALID_CT_VALIDATION_TYPE); | |
5023 | return 0; | |
5024 | case SSL_CT_VALIDATION_PERMISSIVE: | |
5025 | return SSL_set_ct_validation_callback(s, ct_permissive, NULL); | |
5026 | case SSL_CT_VALIDATION_STRICT: | |
5027 | return SSL_set_ct_validation_callback(s, ct_strict, NULL); | |
5028 | } | |
5029 | } | |
5030 | ||
ed29e82a RP |
5031 | int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx) |
5032 | { | |
328f36c5 | 5033 | return CTLOG_STORE_load_default_file(ctx->ctlog_store); |
ed29e82a RP |
5034 | } |
5035 | ||
5036 | int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path) | |
5037 | { | |
5038 | return CTLOG_STORE_load_file(ctx->ctlog_store, path); | |
5039 | } | |
5040 | ||
a230b26e | 5041 | void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE * logs) |
8359b57f RP |
5042 | { |
5043 | CTLOG_STORE_free(ctx->ctlog_store); | |
5044 | ctx->ctlog_store = logs; | |
5045 | } | |
5046 | ||
5047 | const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx) | |
5048 | { | |
5049 | return ctx->ctlog_store; | |
5050 | } | |
5051 | ||
6b1bb98f BK |
5052 | #endif /* OPENSSL_NO_CT */ |
5053 | ||
a9c0d8be DB |
5054 | void SSL_CTX_set_client_hello_cb(SSL_CTX *c, SSL_client_hello_cb_fn cb, |
5055 | void *arg) | |
6b1bb98f | 5056 | { |
a9c0d8be DB |
5057 | c->client_hello_cb = cb; |
5058 | c->client_hello_cb_arg = arg; | |
6b1bb98f BK |
5059 | } |
5060 | ||
a9c0d8be | 5061 | int SSL_client_hello_isv2(SSL *s) |
6b1bb98f BK |
5062 | { |
5063 | if (s->clienthello == NULL) | |
5064 | return 0; | |
5065 | return s->clienthello->isv2; | |
5066 | } | |
5067 | ||
a9c0d8be | 5068 | unsigned int SSL_client_hello_get0_legacy_version(SSL *s) |
6b1bb98f BK |
5069 | { |
5070 | if (s->clienthello == NULL) | |
5071 | return 0; | |
5072 | return s->clienthello->legacy_version; | |
5073 | } | |
5074 | ||
a9c0d8be | 5075 | size_t SSL_client_hello_get0_random(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5076 | { |
5077 | if (s->clienthello == NULL) | |
5078 | return 0; | |
5079 | if (out != NULL) | |
5080 | *out = s->clienthello->random; | |
5081 | return SSL3_RANDOM_SIZE; | |
5082 | } | |
5083 | ||
a9c0d8be | 5084 | size_t SSL_client_hello_get0_session_id(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5085 | { |
5086 | if (s->clienthello == NULL) | |
5087 | return 0; | |
5088 | if (out != NULL) | |
5089 | *out = s->clienthello->session_id; | |
5090 | return s->clienthello->session_id_len; | |
5091 | } | |
5092 | ||
a9c0d8be | 5093 | size_t SSL_client_hello_get0_ciphers(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5094 | { |
5095 | if (s->clienthello == NULL) | |
5096 | return 0; | |
5097 | if (out != NULL) | |
5098 | *out = PACKET_data(&s->clienthello->ciphersuites); | |
5099 | return PACKET_remaining(&s->clienthello->ciphersuites); | |
5100 | } | |
5101 | ||
a9c0d8be | 5102 | size_t SSL_client_hello_get0_compression_methods(SSL *s, const unsigned char **out) |
6b1bb98f BK |
5103 | { |
5104 | if (s->clienthello == NULL) | |
5105 | return 0; | |
5106 | if (out != NULL) | |
5107 | *out = s->clienthello->compressions; | |
5108 | return s->clienthello->compressions_len; | |
5109 | } | |
5110 | ||
a9c0d8be | 5111 | int SSL_client_hello_get1_extensions_present(SSL *s, int **out, size_t *outlen) |
193b5d76 BK |
5112 | { |
5113 | RAW_EXTENSION *ext; | |
5114 | int *present; | |
5115 | size_t num = 0, i; | |
5116 | ||
5117 | if (s->clienthello == NULL || out == NULL || outlen == NULL) | |
5118 | return 0; | |
5119 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { | |
5120 | ext = s->clienthello->pre_proc_exts + i; | |
5121 | if (ext->present) | |
5122 | num++; | |
5123 | } | |
cdb10bae RS |
5124 | if ((present = OPENSSL_malloc(sizeof(*present) * num)) == NULL) { |
5125 | SSLerr(SSL_F_SSL_CLIENT_HELLO_GET1_EXTENSIONS_PRESENT, | |
5126 | ERR_R_MALLOC_FAILURE); | |
193b5d76 | 5127 | return 0; |
cdb10bae | 5128 | } |
193b5d76 BK |
5129 | for (i = 0; i < s->clienthello->pre_proc_exts_len; i++) { |
5130 | ext = s->clienthello->pre_proc_exts + i; | |
5131 | if (ext->present) { | |
5132 | if (ext->received_order >= num) | |
5133 | goto err; | |
5134 | present[ext->received_order] = ext->type; | |
5135 | } | |
5136 | } | |
5137 | *out = present; | |
5138 | *outlen = num; | |
5139 | return 1; | |
5140 | err: | |
5141 | OPENSSL_free(present); | |
5142 | return 0; | |
5143 | } | |
5144 | ||
a9c0d8be | 5145 | int SSL_client_hello_get0_ext(SSL *s, unsigned int type, const unsigned char **out, |
6b1bb98f BK |
5146 | size_t *outlen) |
5147 | { | |
5148 | size_t i; | |
5149 | RAW_EXTENSION *r; | |
5150 | ||
5151 | if (s->clienthello == NULL) | |
5152 | return 0; | |
5153 | for (i = 0; i < s->clienthello->pre_proc_exts_len; ++i) { | |
5154 | r = s->clienthello->pre_proc_exts + i; | |
5155 | if (r->present && r->type == type) { | |
5156 | if (out != NULL) | |
5157 | *out = PACKET_data(&r->data); | |
5158 | if (outlen != NULL) | |
5159 | *outlen = PACKET_remaining(&r->data); | |
5160 | return 1; | |
5161 | } | |
5162 | } | |
5163 | return 0; | |
5164 | } | |
2faa1b48 | 5165 | |
a58eb06d TS |
5166 | int SSL_free_buffers(SSL *ssl) |
5167 | { | |
5168 | RECORD_LAYER *rl = &ssl->rlayer; | |
5169 | ||
5170 | if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl)) | |
5171 | return 0; | |
5172 | ||
5173 | RECORD_LAYER_release(rl); | |
5174 | return 1; | |
5175 | } | |
5176 | ||
5177 | int SSL_alloc_buffers(SSL *ssl) | |
5178 | { | |
5179 | return ssl3_setup_buffers(ssl); | |
5180 | } | |
5181 | ||
2faa1b48 CB |
5182 | void SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb) |
5183 | { | |
5184 | ctx->keylog_callback = cb; | |
5185 | } | |
5186 | ||
5187 | SSL_CTX_keylog_cb_func SSL_CTX_get_keylog_callback(const SSL_CTX *ctx) | |
5188 | { | |
5189 | return ctx->keylog_callback; | |
5190 | } | |
5191 | ||
5192 | static int nss_keylog_int(const char *prefix, | |
5193 | SSL *ssl, | |
5194 | const uint8_t *parameter_1, | |
5195 | size_t parameter_1_len, | |
5196 | const uint8_t *parameter_2, | |
5197 | size_t parameter_2_len) | |
5198 | { | |
5199 | char *out = NULL; | |
5200 | char *cursor = NULL; | |
5201 | size_t out_len = 0; | |
5202 | size_t i; | |
5203 | size_t prefix_len; | |
5204 | ||
20870286 P |
5205 | if (ssl->ctx->keylog_callback == NULL) |
5206 | return 1; | |
2faa1b48 CB |
5207 | |
5208 | /* | |
5209 | * Our output buffer will contain the following strings, rendered with | |
5210 | * space characters in between, terminated by a NULL character: first the | |
5211 | * prefix, then the first parameter, then the second parameter. The | |
5212 | * meaning of each parameter depends on the specific key material being | |
5213 | * logged. Note that the first and second parameters are encoded in | |
5214 | * hexadecimal, so we need a buffer that is twice their lengths. | |
5215 | */ | |
5216 | prefix_len = strlen(prefix); | |
e931f370 | 5217 | out_len = prefix_len + (2 * parameter_1_len) + (2 * parameter_2_len) + 3; |
2faa1b48 | 5218 | if ((out = cursor = OPENSSL_malloc(out_len)) == NULL) { |
f63a17d6 MC |
5219 | SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, SSL_F_NSS_KEYLOG_INT, |
5220 | ERR_R_MALLOC_FAILURE); | |
2faa1b48 CB |
5221 | return 0; |
5222 | } | |
5223 | ||
5224 | strcpy(cursor, prefix); | |
5225 | cursor += prefix_len; | |
5226 | *cursor++ = ' '; | |
5227 | ||
5228 | for (i = 0; i < parameter_1_len; i++) { | |
5229 | sprintf(cursor, "%02x", parameter_1[i]); | |
5230 | cursor += 2; | |
5231 | } | |
5232 | *cursor++ = ' '; | |
5233 | ||
5234 | for (i = 0; i < parameter_2_len; i++) { | |
5235 | sprintf(cursor, "%02x", parameter_2[i]); | |
5236 | cursor += 2; | |
5237 | } | |
5238 | *cursor = '\0'; | |
5239 | ||
5240 | ssl->ctx->keylog_callback(ssl, (const char *)out); | |
e931f370 | 5241 | OPENSSL_clear_free(out, out_len); |
2faa1b48 CB |
5242 | return 1; |
5243 | ||
5244 | } | |
5245 | ||
5246 | int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
5247 | const uint8_t *encrypted_premaster, | |
5248 | size_t encrypted_premaster_len, | |
5249 | const uint8_t *premaster, | |
5250 | size_t premaster_len) | |
5251 | { | |
5252 | if (encrypted_premaster_len < 8) { | |
f63a17d6 MC |
5253 | SSLfatal(ssl, SSL_AD_INTERNAL_ERROR, |
5254 | SSL_F_SSL_LOG_RSA_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR); | |
2faa1b48 CB |
5255 | return 0; |
5256 | } | |
5257 | ||
f0deb4d3 | 5258 | /* We only want the first 8 bytes of the encrypted premaster as a tag. */ |
2faa1b48 CB |
5259 | return nss_keylog_int("RSA", |
5260 | ssl, | |
5261 | encrypted_premaster, | |
f0deb4d3 | 5262 | 8, |
2faa1b48 CB |
5263 | premaster, |
5264 | premaster_len); | |
5265 | } | |
5266 | ||
2c7bd692 CB |
5267 | int ssl_log_secret(SSL *ssl, |
5268 | const char *label, | |
5269 | const uint8_t *secret, | |
5270 | size_t secret_len) | |
2faa1b48 | 5271 | { |
2c7bd692 | 5272 | return nss_keylog_int(label, |
2faa1b48 | 5273 | ssl, |
2c7bd692 CB |
5274 | ssl->s3->client_random, |
5275 | SSL3_RANDOM_SIZE, | |
5276 | secret, | |
5277 | secret_len); | |
2faa1b48 CB |
5278 | } |
5279 | ||
ccb8e6e0 BK |
5280 | #define SSLV2_CIPHER_LEN 3 |
5281 | ||
f63a17d6 | 5282 | int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format) |
ccb8e6e0 | 5283 | { |
ccb8e6e0 | 5284 | int n; |
ccb8e6e0 BK |
5285 | |
5286 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5287 | ||
5288 | if (PACKET_remaining(cipher_suites) == 0) { | |
f63a17d6 MC |
5289 | SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_CACHE_CIPHERLIST, |
5290 | SSL_R_NO_CIPHERS_SPECIFIED); | |
90134d98 | 5291 | return 0; |
ccb8e6e0 BK |
5292 | } |
5293 | ||
5294 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
f63a17d6 | 5295 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
dd5a4279 | 5296 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); |
90134d98 | 5297 | return 0; |
ccb8e6e0 BK |
5298 | } |
5299 | ||
5300 | OPENSSL_free(s->s3->tmp.ciphers_raw); | |
5301 | s->s3->tmp.ciphers_raw = NULL; | |
5302 | s->s3->tmp.ciphers_rawlen = 0; | |
5303 | ||
5304 | if (sslv2format) { | |
5305 | size_t numciphers = PACKET_remaining(cipher_suites) / n; | |
5306 | PACKET sslv2ciphers = *cipher_suites; | |
5307 | unsigned int leadbyte; | |
5308 | unsigned char *raw; | |
5309 | ||
5310 | /* | |
5311 | * We store the raw ciphers list in SSLv3+ format so we need to do some | |
5312 | * preprocessing to convert the list first. If there are any SSLv2 only | |
5313 | * ciphersuites with a non-zero leading byte then we are going to | |
5314 | * slightly over allocate because we won't store those. But that isn't a | |
5315 | * problem. | |
5316 | */ | |
5317 | raw = OPENSSL_malloc(numciphers * TLS_CIPHER_LEN); | |
5318 | s->s3->tmp.ciphers_raw = raw; | |
5319 | if (raw == NULL) { | |
f63a17d6 MC |
5320 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5321 | ERR_R_MALLOC_FAILURE); | |
5322 | return 0; | |
ccb8e6e0 BK |
5323 | } |
5324 | for (s->s3->tmp.ciphers_rawlen = 0; | |
5325 | PACKET_remaining(&sslv2ciphers) > 0; | |
5326 | raw += TLS_CIPHER_LEN) { | |
5327 | if (!PACKET_get_1(&sslv2ciphers, &leadbyte) | |
5328 | || (leadbyte == 0 | |
5329 | && !PACKET_copy_bytes(&sslv2ciphers, raw, | |
5330 | TLS_CIPHER_LEN)) | |
5331 | || (leadbyte != 0 | |
5332 | && !PACKET_forward(&sslv2ciphers, TLS_CIPHER_LEN))) { | |
f63a17d6 MC |
5333 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5334 | SSL_R_BAD_PACKET); | |
ccb8e6e0 BK |
5335 | OPENSSL_free(s->s3->tmp.ciphers_raw); |
5336 | s->s3->tmp.ciphers_raw = NULL; | |
5337 | s->s3->tmp.ciphers_rawlen = 0; | |
f63a17d6 | 5338 | return 0; |
ccb8e6e0 BK |
5339 | } |
5340 | if (leadbyte == 0) | |
5341 | s->s3->tmp.ciphers_rawlen += TLS_CIPHER_LEN; | |
5342 | } | |
5343 | } else if (!PACKET_memdup(cipher_suites, &s->s3->tmp.ciphers_raw, | |
5344 | &s->s3->tmp.ciphers_rawlen)) { | |
f63a17d6 MC |
5345 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CACHE_CIPHERLIST, |
5346 | ERR_R_INTERNAL_ERROR); | |
5347 | return 0; | |
ccb8e6e0 | 5348 | } |
90134d98 | 5349 | return 1; |
90134d98 BK |
5350 | } |
5351 | ||
5352 | int SSL_bytes_to_cipher_list(SSL *s, const unsigned char *bytes, size_t len, | |
5353 | int isv2format, STACK_OF(SSL_CIPHER) **sk, | |
5354 | STACK_OF(SSL_CIPHER) **scsvs) | |
5355 | { | |
90134d98 BK |
5356 | PACKET pkt; |
5357 | ||
5358 | if (!PACKET_buf_init(&pkt, bytes, len)) | |
5359 | return 0; | |
f63a17d6 | 5360 | return bytes_to_cipher_list(s, &pkt, sk, scsvs, isv2format, 0); |
90134d98 BK |
5361 | } |
5362 | ||
5363 | int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
5364 | STACK_OF(SSL_CIPHER) **skp, | |
5365 | STACK_OF(SSL_CIPHER) **scsvs_out, | |
f63a17d6 | 5366 | int sslv2format, int fatal) |
90134d98 BK |
5367 | { |
5368 | const SSL_CIPHER *c; | |
5369 | STACK_OF(SSL_CIPHER) *sk = NULL; | |
5370 | STACK_OF(SSL_CIPHER) *scsvs = NULL; | |
5371 | int n; | |
5372 | /* 3 = SSLV2_CIPHER_LEN > TLS_CIPHER_LEN = 2. */ | |
5373 | unsigned char cipher[SSLV2_CIPHER_LEN]; | |
5374 | ||
5375 | n = sslv2format ? SSLV2_CIPHER_LEN : TLS_CIPHER_LEN; | |
5376 | ||
5377 | if (PACKET_remaining(cipher_suites) == 0) { | |
f63a17d6 MC |
5378 | if (fatal) |
5379 | SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_BYTES_TO_CIPHER_LIST, | |
5380 | SSL_R_NO_CIPHERS_SPECIFIED); | |
5381 | else | |
5382 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_NO_CIPHERS_SPECIFIED); | |
90134d98 BK |
5383 | return 0; |
5384 | } | |
5385 | ||
5386 | if (PACKET_remaining(cipher_suites) % n != 0) { | |
f63a17d6 MC |
5387 | if (fatal) |
5388 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5389 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
5390 | else | |
5391 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, | |
5392 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
90134d98 BK |
5393 | return 0; |
5394 | } | |
5395 | ||
5396 | sk = sk_SSL_CIPHER_new_null(); | |
5397 | scsvs = sk_SSL_CIPHER_new_null(); | |
5398 | if (sk == NULL || scsvs == NULL) { | |
f63a17d6 MC |
5399 | if (fatal) |
5400 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5401 | ERR_R_MALLOC_FAILURE); | |
5402 | else | |
5403 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
90134d98 BK |
5404 | goto err; |
5405 | } | |
ccb8e6e0 BK |
5406 | |
5407 | while (PACKET_copy_bytes(cipher_suites, cipher, n)) { | |
5408 | /* | |
5409 | * SSLv3 ciphers wrapped in an SSLv2-compatible ClientHello have the | |
5410 | * first byte set to zero, while true SSLv2 ciphers have a non-zero | |
5411 | * first byte. We don't support any true SSLv2 ciphers, so skip them. | |
5412 | */ | |
5413 | if (sslv2format && cipher[0] != '\0') | |
5414 | continue; | |
5415 | ||
ccb8e6e0 BK |
5416 | /* For SSLv2-compat, ignore leading 0-byte. */ |
5417 | c = ssl_get_cipher_by_char(s, sslv2format ? &cipher[1] : cipher, 1); | |
5418 | if (c != NULL) { | |
90134d98 BK |
5419 | if ((c->valid && !sk_SSL_CIPHER_push(sk, c)) || |
5420 | (!c->valid && !sk_SSL_CIPHER_push(scsvs, c))) { | |
f63a17d6 MC |
5421 | if (fatal) |
5422 | SSLfatal(s, SSL_AD_INTERNAL_ERROR, | |
5423 | SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
5424 | else | |
5425 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
ccb8e6e0 BK |
5426 | goto err; |
5427 | } | |
5428 | } | |
5429 | } | |
5430 | if (PACKET_remaining(cipher_suites) > 0) { | |
f63a17d6 MC |
5431 | if (fatal) |
5432 | SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_BYTES_TO_CIPHER_LIST, | |
5433 | SSL_R_BAD_LENGTH); | |
5434 | else | |
5435 | SSLerr(SSL_F_BYTES_TO_CIPHER_LIST, SSL_R_BAD_LENGTH); | |
ccb8e6e0 BK |
5436 | goto err; |
5437 | } | |
5438 | ||
90134d98 BK |
5439 | if (skp != NULL) |
5440 | *skp = sk; | |
5441 | else | |
5442 | sk_SSL_CIPHER_free(sk); | |
5443 | if (scsvs_out != NULL) | |
5444 | *scsvs_out = scsvs; | |
5445 | else | |
5446 | sk_SSL_CIPHER_free(scsvs); | |
5447 | return 1; | |
ccb8e6e0 BK |
5448 | err: |
5449 | sk_SSL_CIPHER_free(sk); | |
90134d98 BK |
5450 | sk_SSL_CIPHER_free(scsvs); |
5451 | return 0; | |
ccb8e6e0 | 5452 | } |
3fc8d856 MC |
5453 | |
5454 | int SSL_CTX_set_max_early_data(SSL_CTX *ctx, uint32_t max_early_data) | |
5455 | { | |
5456 | ctx->max_early_data = max_early_data; | |
5457 | ||
5458 | return 1; | |
5459 | } | |
5460 | ||
46dcb945 | 5461 | uint32_t SSL_CTX_get_max_early_data(const SSL_CTX *ctx) |
3fc8d856 MC |
5462 | { |
5463 | return ctx->max_early_data; | |
5464 | } | |
5465 | ||
5466 | int SSL_set_max_early_data(SSL *s, uint32_t max_early_data) | |
5467 | { | |
5468 | s->max_early_data = max_early_data; | |
5469 | ||
5470 | return 1; | |
5471 | } | |
5472 | ||
a8e75d56 | 5473 | uint32_t SSL_get_max_early_data(const SSL *s) |
3fc8d856 MC |
5474 | { |
5475 | return s->max_early_data; | |
5476 | } | |
ae3947de | 5477 | |
4e8548e8 MC |
5478 | int SSL_CTX_set_recv_max_early_data(SSL_CTX *ctx, uint32_t recv_max_early_data) |
5479 | { | |
5480 | ctx->recv_max_early_data = recv_max_early_data; | |
5481 | ||
5482 | return 1; | |
5483 | } | |
5484 | ||
5485 | uint32_t SSL_CTX_get_recv_max_early_data(const SSL_CTX *ctx) | |
5486 | { | |
5487 | return ctx->recv_max_early_data; | |
5488 | } | |
5489 | ||
5490 | int SSL_set_recv_max_early_data(SSL *s, uint32_t recv_max_early_data) | |
5491 | { | |
5492 | s->recv_max_early_data = recv_max_early_data; | |
5493 | ||
5494 | return 1; | |
5495 | } | |
5496 | ||
5497 | uint32_t SSL_get_recv_max_early_data(const SSL *s) | |
5498 | { | |
5499 | return s->recv_max_early_data; | |
5500 | } | |
5501 | ||
cf72c757 F |
5502 | __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl) |
5503 | { | |
5504 | /* Return any active Max Fragment Len extension */ | |
5505 | if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session)) | |
5506 | return GET_MAX_FRAGMENT_LENGTH(ssl->session); | |
5507 | ||
5508 | /* return current SSL connection setting */ | |
5509 | return ssl->max_send_fragment; | |
5510 | } | |
5511 | ||
5512 | __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl) | |
5513 | { | |
5514 | /* Return a value regarding an active Max Fragment Len extension */ | |
5515 | if (ssl->session != NULL && USE_MAX_FRAGMENT_LENGTH_EXT(ssl->session) | |
5516 | && ssl->split_send_fragment > GET_MAX_FRAGMENT_LENGTH(ssl->session)) | |
5517 | return GET_MAX_FRAGMENT_LENGTH(ssl->session); | |
5518 | ||
5519 | /* else limit |split_send_fragment| to current |max_send_fragment| */ | |
5520 | if (ssl->split_send_fragment > ssl->max_send_fragment) | |
5521 | return ssl->max_send_fragment; | |
5522 | ||
5523 | /* return current SSL connection setting */ | |
5524 | return ssl->split_send_fragment; | |
5525 | } | |
042c5753 MC |
5526 | |
5527 | int SSL_stateless(SSL *s) | |
5528 | { | |
5529 | int ret; | |
5530 | ||
5531 | /* Ensure there is no state left over from a previous invocation */ | |
5532 | if (!SSL_clear(s)) | |
d6bb50a5 | 5533 | return 0; |
042c5753 MC |
5534 | |
5535 | ERR_clear_error(); | |
5536 | ||
5537 | s->s3->flags |= TLS1_FLAGS_STATELESS; | |
5538 | ret = SSL_accept(s); | |
5539 | s->s3->flags &= ~TLS1_FLAGS_STATELESS; | |
5540 | ||
d6bb50a5 | 5541 | if (ret > 0 && s->ext.cookieok) |
c36001c3 MC |
5542 | return 1; |
5543 | ||
e440f513 MC |
5544 | if (s->hello_retry_request == SSL_HRR_PENDING && !ossl_statem_in_error(s)) |
5545 | return 0; | |
5546 | ||
5547 | return -1; | |
042c5753 | 5548 | } |
9d75dce3 | 5549 | |
e97be718 MC |
5550 | void SSL_CTX_set_post_handshake_auth(SSL_CTX *ctx, int val) |
5551 | { | |
5552 | ctx->pha_enabled = val; | |
5553 | } | |
5554 | ||
32097b33 | 5555 | void SSL_set_post_handshake_auth(SSL *ssl, int val) |
9d75dce3 | 5556 | { |
32097b33 | 5557 | ssl->pha_enabled = val; |
9d75dce3 TS |
5558 | } |
5559 | ||
5560 | int SSL_verify_client_post_handshake(SSL *ssl) | |
5561 | { | |
5562 | if (!SSL_IS_TLS13(ssl)) { | |
5563 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_WRONG_SSL_VERSION); | |
5564 | return 0; | |
5565 | } | |
5566 | if (!ssl->server) { | |
5567 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_NOT_SERVER); | |
5568 | return 0; | |
5569 | } | |
5570 | ||
5571 | if (!SSL_is_init_finished(ssl)) { | |
5572 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_STILL_IN_INIT); | |
5573 | return 0; | |
5574 | } | |
5575 | ||
5576 | switch (ssl->post_handshake_auth) { | |
5577 | case SSL_PHA_NONE: | |
5578 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_EXTENSION_NOT_RECEIVED); | |
5579 | return 0; | |
5580 | default: | |
5581 | case SSL_PHA_EXT_SENT: | |
5582 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, ERR_R_INTERNAL_ERROR); | |
5583 | return 0; | |
5584 | case SSL_PHA_EXT_RECEIVED: | |
5585 | break; | |
5586 | case SSL_PHA_REQUEST_PENDING: | |
5587 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_PENDING); | |
5588 | return 0; | |
5589 | case SSL_PHA_REQUESTED: | |
5590 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_REQUEST_SENT); | |
5591 | return 0; | |
5592 | } | |
5593 | ||
5594 | ssl->post_handshake_auth = SSL_PHA_REQUEST_PENDING; | |
5595 | ||
5596 | /* checks verify_mode and algorithm_auth */ | |
5597 | if (!send_certificate_request(ssl)) { | |
5598 | ssl->post_handshake_auth = SSL_PHA_EXT_RECEIVED; /* restore on error */ | |
5599 | SSLerr(SSL_F_SSL_VERIFY_CLIENT_POST_HANDSHAKE, SSL_R_INVALID_CONFIG); | |
5600 | return 0; | |
5601 | } | |
5602 | ||
5603 | ossl_statem_set_in_init(ssl, 1); | |
5604 | return 1; | |
5605 | } | |
df0fed9a TS |
5606 | |
5607 | int SSL_CTX_set_session_ticket_cb(SSL_CTX *ctx, | |
5608 | SSL_CTX_generate_session_ticket_fn gen_cb, | |
5609 | SSL_CTX_decrypt_session_ticket_fn dec_cb, | |
5610 | void *arg) | |
5611 | { | |
5612 | ctx->generate_ticket_cb = gen_cb; | |
5613 | ctx->decrypt_ticket_cb = dec_cb; | |
5614 | ctx->ticket_cb_data = arg; | |
5615 | return 1; | |
5616 | } | |
c9598459 MC |
5617 | |
5618 | void SSL_CTX_set_allow_early_data_cb(SSL_CTX *ctx, | |
5619 | SSL_allow_early_data_cb_fn cb, | |
5620 | void *arg) | |
5621 | { | |
5622 | ctx->allow_early_data_cb = cb; | |
5623 | ctx->allow_early_data_cb_data = arg; | |
5624 | } | |
5625 | ||
5626 | void SSL_set_allow_early_data_cb(SSL *s, | |
5627 | SSL_allow_early_data_cb_fn cb, | |
5628 | void *arg) | |
5629 | { | |
5630 | s->allow_early_data_cb = cb; | |
5631 | s->allow_early_data_cb_data = arg; | |
5632 | } |