1 /*
2 * Copyright 2012-2022 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include "ssl_local.h"
12 #include <openssl/conf.h>
13 #include <openssl/objects.h>
14 #include <openssl/decoder.h>
15 #include <openssl/core_dispatch.h>
16 #include "internal/nelem.h"
17
18 /*
19 * structure holding name tables. This is used for permitted elements in lists
20 * such as TLSv1.
21 */
22
23 typedef struct {
24 const char *name;
25 int namelen;
26 unsigned int name_flags;
27 uint64_t option_value;
28 } ssl_flag_tbl;
29
30 /* Switch table: use for single command line switches like no_tls2 */
31 typedef struct {
32 uint64_t option_value;
33 unsigned int name_flags;
34 } ssl_switch_tbl;
35
36 /* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
37 #define SSL_TFLAG_INV 0x1
38 /* Mask for type of flag referred to */
39 #define SSL_TFLAG_TYPE_MASK 0xf00
40 /* Flag is for options */
41 #define SSL_TFLAG_OPTION 0x000
42 /* Flag is for cert_flags */
43 #define SSL_TFLAG_CERT 0x100
44 /* Flag is for verify mode */
45 #define SSL_TFLAG_VFY 0x200
46 /* Option can only be used for clients */
47 #define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
48 /* Option can only be used for servers */
49 #define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
50 #define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
51
52 #define SSL_FLAG_TBL(str, flag) \
53 {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
54 #define SSL_FLAG_TBL_SRV(str, flag) \
55 {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
56 #define SSL_FLAG_TBL_CLI(str, flag) \
57 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
58 #define SSL_FLAG_TBL_INV(str, flag) \
59 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
60 #define SSL_FLAG_TBL_SRV_INV(str, flag) \
61 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
62 #define SSL_FLAG_TBL_CERT(str, flag) \
63 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
64
65 #define SSL_FLAG_VFY_CLI(str, flag) \
66 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_CLIENT, flag}
67 #define SSL_FLAG_VFY_SRV(str, flag) \
68 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_SERVER, flag}
69
70 /*
71 * Opaque structure containing SSL configuration context.
72 */
73
74 struct ssl_conf_ctx_st {
75 /*
76 * Various flags indicating (among other things) which options we will
77 * recognise.
78 */
79 unsigned int flags;
80 /* Prefix and length of commands */
81 char *prefix;
82 size_t prefixlen;
83 /* SSL_CTX or SSL structure to perform operations on */
84 SSL_CTX *ctx;
85 SSL *ssl;
86 /* Pointer to SSL or SSL_CTX options field or NULL if none */
87 uint64_t *poptions;
88 /* Certificate filenames for each type */
89 char *cert_filename[SSL_PKEY_NUM];
90 /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
91 uint32_t *pcert_flags;
92 /* Pointer to SSL or SSL_CTX verify_mode or NULL if none */
93 uint32_t *pvfy_flags;
94 /* Pointer to SSL or SSL_CTX min_version field or NULL if none */
95 int *min_version;
96 /* Pointer to SSL or SSL_CTX max_version field or NULL if none */
97 int *max_version;
98 /* Current flag table being worked on */
99 const ssl_flag_tbl *tbl;
100 /* Size of table */
101 size_t ntbl;
102 /* Client CA names */
103 STACK_OF(X509_NAME) *canames;
104 };
105
ssl_set_option(SSL_CONF_CTX * cctx,unsigned int name_flags,uint64_t option_value,int onoff)106 static void ssl_set_option(SSL_CONF_CTX *cctx, unsigned int name_flags,
107 uint64_t option_value, int onoff)
108 {
109 uint32_t *pflags;
110
111 if (cctx->poptions == NULL)
112 return;
113 if (name_flags & SSL_TFLAG_INV)
114 onoff ^= 1;
115 switch (name_flags & SSL_TFLAG_TYPE_MASK) {
116
117 case SSL_TFLAG_CERT:
118 pflags = cctx->pcert_flags;
119 break;
120
121 case SSL_TFLAG_VFY:
122 pflags = cctx->pvfy_flags;
123 break;
124
125 case SSL_TFLAG_OPTION:
126 if (onoff)
127 *cctx->poptions |= option_value;
128 else
129 *cctx->poptions &= ~option_value;
130 return;
131
132 default:
133 return;
134
135 }
136 if (onoff)
137 *pflags |= option_value;
138 else
139 *pflags &= ~option_value;
140 }
141
ssl_match_option(SSL_CONF_CTX * cctx,const ssl_flag_tbl * tbl,const char * name,int namelen,int onoff)142 static int ssl_match_option(SSL_CONF_CTX *cctx, const ssl_flag_tbl *tbl,
143 const char *name, int namelen, int onoff)
144 {
145 /* If name not relevant for context skip */
146 if (!(cctx->flags & tbl->name_flags & SSL_TFLAG_BOTH))
147 return 0;
148 if (namelen == -1) {
149 if (strcmp(tbl->name, name))
150 return 0;
151 } else if (tbl->namelen != namelen
152 || OPENSSL_strncasecmp(tbl->name, name, namelen))
153 return 0;
154 ssl_set_option(cctx, tbl->name_flags, tbl->option_value, onoff);
155 return 1;
156 }
157
ssl_set_option_list(const char * elem,int len,void * usr)158 static int ssl_set_option_list(const char *elem, int len, void *usr)
159 {
160 SSL_CONF_CTX *cctx = usr;
161 size_t i;
162 const ssl_flag_tbl *tbl;
163 int onoff = 1;
164 /*
165 * len == -1 indicates not being called in list context, just for single
166 * command line switches, so don't allow +, -.
167 */
168 if (elem == NULL)
169 return 0;
170 if (len != -1) {
171 if (*elem == '+') {
172 elem++;
173 len--;
174 onoff = 1;
175 } else if (*elem == '-') {
176 elem++;
177 len--;
178 onoff = 0;
179 }
180 }
181 for (i = 0, tbl = cctx->tbl; i < cctx->ntbl; i++, tbl++) {
182 if (ssl_match_option(cctx, tbl, elem, len, onoff))
183 return 1;
184 }
185 return 0;
186 }
187
188 /* Set supported signature algorithms */
cmd_SignatureAlgorithms(SSL_CONF_CTX * cctx,const char * value)189 static int cmd_SignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
190 {
191 int rv;
192 if (cctx->ssl)
193 rv = SSL_set1_sigalgs_list(cctx->ssl, value);
194 /* NB: ctx == NULL performs syntax checking only */
195 else
196 rv = SSL_CTX_set1_sigalgs_list(cctx->ctx, value);
197 return rv > 0;
198 }
199
200 /* Set supported client signature algorithms */
cmd_ClientSignatureAlgorithms(SSL_CONF_CTX * cctx,const char * value)201 static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
202 {
203 int rv;
204 if (cctx->ssl)
205 rv = SSL_set1_client_sigalgs_list(cctx->ssl, value);
206 /* NB: ctx == NULL performs syntax checking only */
207 else
208 rv = SSL_CTX_set1_client_sigalgs_list(cctx->ctx, value);
209 return rv > 0;
210 }
211
cmd_Groups(SSL_CONF_CTX * cctx,const char * value)212 static int cmd_Groups(SSL_CONF_CTX *cctx, const char *value)
213 {
214 int rv;
215 if (cctx->ssl)
216 rv = SSL_set1_groups_list(cctx->ssl, value);
217 /* NB: ctx == NULL performs syntax checking only */
218 else
219 rv = SSL_CTX_set1_groups_list(cctx->ctx, value);
220 return rv > 0;
221 }
222
223 /* This is the old name for cmd_Groups - retained for backwards compatibility */
cmd_Curves(SSL_CONF_CTX * cctx,const char * value)224 static int cmd_Curves(SSL_CONF_CTX *cctx, const char *value)
225 {
226 return cmd_Groups(cctx, value);
227 }
228
229 /* ECDH temporary parameters */
cmd_ECDHParameters(SSL_CONF_CTX * cctx,const char * value)230 static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value)
231 {
232 int rv = 1;
233
234 /* Ignore values supported by 1.0.2 for the automatic selection */
235 if ((cctx->flags & SSL_CONF_FLAG_FILE)
236 && (OPENSSL_strcasecmp(value, "+automatic") == 0
237 || OPENSSL_strcasecmp(value, "automatic") == 0))
238 return 1;
239 if ((cctx->flags & SSL_CONF_FLAG_CMDLINE) &&
240 strcmp(value, "auto") == 0)
241 return 1;
242
243 /* ECDHParameters accepts a single group name */
244 if (strstr(value, ":") != NULL)
245 return 0;
246
247 if (cctx->ctx)
248 rv = SSL_CTX_set1_groups_list(cctx->ctx, value);
249 else if (cctx->ssl)
250 rv = SSL_set1_groups_list(cctx->ssl, value);
251
252 return rv > 0;
253 }
254
cmd_CipherString(SSL_CONF_CTX * cctx,const char * value)255 static int cmd_CipherString(SSL_CONF_CTX *cctx, const char *value)
256 {
257 int rv = 1;
258
259 if (cctx->ctx)
260 rv = SSL_CTX_set_cipher_list(cctx->ctx, value);
261 if (cctx->ssl)
262 rv = SSL_set_cipher_list(cctx->ssl, value);
263 return rv > 0;
264 }
265
cmd_Ciphersuites(SSL_CONF_CTX * cctx,const char * value)266 static int cmd_Ciphersuites(SSL_CONF_CTX *cctx, const char *value)
267 {
268 int rv = 1;
269
270 if (cctx->ctx)
271 rv = SSL_CTX_set_ciphersuites(cctx->ctx, value);
272 if (cctx->ssl)
273 rv = SSL_set_ciphersuites(cctx->ssl, value);
274 return rv > 0;
275 }
276
cmd_Protocol(SSL_CONF_CTX * cctx,const char * value)277 static int cmd_Protocol(SSL_CONF_CTX *cctx, const char *value)
278 {
279 static const ssl_flag_tbl ssl_protocol_list[] = {
280 SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK),
281 SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2),
282 SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3),
283 SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1),
284 SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1),
285 SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2),
286 SSL_FLAG_TBL_INV("TLSv1.3", SSL_OP_NO_TLSv1_3),
287 SSL_FLAG_TBL_INV("DTLSv1", SSL_OP_NO_DTLSv1),
288 SSL_FLAG_TBL_INV("DTLSv1.2", SSL_OP_NO_DTLSv1_2)
289 };
290 cctx->tbl = ssl_protocol_list;
291 cctx->ntbl = OSSL_NELEM(ssl_protocol_list);
292 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
293 }
294
295 /*
296 * protocol_from_string - converts a protocol version string to a number
297 *
298 * Returns -1 on failure or the version on success
299 */
protocol_from_string(const char * value)300 static int protocol_from_string(const char *value)
301 {
302 struct protocol_versions {
303 const char *name;
304 int version;
305 };
306 /*
307 * Note: To avoid breaking previously valid configurations, we must retain
308 * legacy entries in this table even if the underlying protocol is no
309 * longer supported. This also means that the constants SSL3_VERSION, ...
310 * need to be retained indefinitely. This table can only grow, never
311 * shrink.
312 */
313 static const struct protocol_versions versions[] = {
314 {"None", 0},
315 {"SSLv3", SSL3_VERSION},
316 {"TLSv1", TLS1_VERSION},
317 {"TLSv1.1", TLS1_1_VERSION},
318 {"TLSv1.2", TLS1_2_VERSION},
319 {"TLSv1.3", TLS1_3_VERSION},
320 {"DTLSv1", DTLS1_VERSION},
321 {"DTLSv1.2", DTLS1_2_VERSION}
322 };
323 size_t i;
324 size_t n = OSSL_NELEM(versions);
325
326 for (i = 0; i < n; i++)
327 if (strcmp(versions[i].name, value) == 0)
328 return versions[i].version;
329 return -1;
330 }
331
min_max_proto(SSL_CONF_CTX * cctx,const char * value,int * bound)332 static int min_max_proto(SSL_CONF_CTX *cctx, const char *value, int *bound)
333 {
334 int method_version;
335 int new_version;
336
337 if (cctx->ctx != NULL)
338 method_version = cctx->ctx->method->version;
339 else if (cctx->ssl != NULL)
340 method_version = cctx->ssl->ctx->method->version;
341 else
342 return 0;
343 if ((new_version = protocol_from_string(value)) < 0)
344 return 0;
345 return ssl_set_version_bound(method_version, new_version, bound);
346 }
347
348 /*
349 * cmd_MinProtocol - Set min protocol version
350 * @cctx: config structure to save settings in
351 * @value: The min protocol version in string form
352 *
353 * Returns 1 on success and 0 on failure.
354 */
cmd_MinProtocol(SSL_CONF_CTX * cctx,const char * value)355 static int cmd_MinProtocol(SSL_CONF_CTX *cctx, const char *value)
356 {
357 return min_max_proto(cctx, value, cctx->min_version);
358 }
359
360 /*
361 * cmd_MaxProtocol - Set max protocol version
362 * @cctx: config structure to save settings in
363 * @value: The max protocol version in string form
364 *
365 * Returns 1 on success and 0 on failure.
366 */
cmd_MaxProtocol(SSL_CONF_CTX * cctx,const char * value)367 static int cmd_MaxProtocol(SSL_CONF_CTX *cctx, const char *value)
368 {
369 return min_max_proto(cctx, value, cctx->max_version);
370 }
371
cmd_Options(SSL_CONF_CTX * cctx,const char * value)372 static int cmd_Options(SSL_CONF_CTX *cctx, const char *value)
373 {
374 static const ssl_flag_tbl ssl_option_list[] = {
375 SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET),
376 SSL_FLAG_TBL_INV("EmptyFragments",
377 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS),
378 SSL_FLAG_TBL("Bugs", SSL_OP_ALL),
379 SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION),
380 SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE),
381 SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
382 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
383 SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE),
384 SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE),
385 SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
386 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
387 SSL_FLAG_TBL("UnsafeLegacyServerConnect",
388 SSL_OP_LEGACY_SERVER_CONNECT),
389 SSL_FLAG_TBL("ClientRenegotiation",
390 SSL_OP_ALLOW_CLIENT_RENEGOTIATION),
391 SSL_FLAG_TBL_INV("EncryptThenMac", SSL_OP_NO_ENCRYPT_THEN_MAC),
392 SSL_FLAG_TBL("NoRenegotiation", SSL_OP_NO_RENEGOTIATION),
393 SSL_FLAG_TBL("AllowNoDHEKEX", SSL_OP_ALLOW_NO_DHE_KEX),
394 SSL_FLAG_TBL("PrioritizeChaCha", SSL_OP_PRIORITIZE_CHACHA),
395 SSL_FLAG_TBL("MiddleboxCompat", SSL_OP_ENABLE_MIDDLEBOX_COMPAT),
396 SSL_FLAG_TBL_INV("AntiReplay", SSL_OP_NO_ANTI_REPLAY),
397 SSL_FLAG_TBL_INV("ExtendedMasterSecret", SSL_OP_NO_EXTENDED_MASTER_SECRET),
398 SSL_FLAG_TBL_INV("CANames", SSL_OP_DISABLE_TLSEXT_CA_NAMES),
399 SSL_FLAG_TBL("KTLS", SSL_OP_ENABLE_KTLS),
400 SSL_FLAG_TBL_CERT("StrictCertCheck", SSL_CERT_FLAG_TLS_STRICT)
401 };
402 if (value == NULL)
403 return -3;
404 cctx->tbl = ssl_option_list;
405 cctx->ntbl = OSSL_NELEM(ssl_option_list);
406 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
407 }
408
cmd_VerifyMode(SSL_CONF_CTX * cctx,const char * value)409 static int cmd_VerifyMode(SSL_CONF_CTX *cctx, const char *value)
410 {
411 static const ssl_flag_tbl ssl_vfy_list[] = {
412 SSL_FLAG_VFY_CLI("Peer", SSL_VERIFY_PEER),
413 SSL_FLAG_VFY_SRV("Request", SSL_VERIFY_PEER),
414 SSL_FLAG_VFY_SRV("Require",
415 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT),
416 SSL_FLAG_VFY_SRV("Once", SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE),
417 SSL_FLAG_VFY_SRV("RequestPostHandshake",
418 SSL_VERIFY_PEER | SSL_VERIFY_POST_HANDSHAKE),
419 SSL_FLAG_VFY_SRV("RequirePostHandshake",
420 SSL_VERIFY_PEER | SSL_VERIFY_POST_HANDSHAKE |
421 SSL_VERIFY_FAIL_IF_NO_PEER_CERT),
422 };
423 if (value == NULL)
424 return -3;
425 cctx->tbl = ssl_vfy_list;
426 cctx->ntbl = OSSL_NELEM(ssl_vfy_list);
427 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
428 }
429
cmd_Certificate(SSL_CONF_CTX * cctx,const char * value)430 static int cmd_Certificate(SSL_CONF_CTX *cctx, const char *value)
431 {
432 int rv = 1;
433 CERT *c = NULL;
434 if (cctx->ctx != NULL) {
435 rv = SSL_CTX_use_certificate_chain_file(cctx->ctx, value);
436 c = cctx->ctx->cert;
437 }
438 if (cctx->ssl != NULL) {
439 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(cctx->ssl);
440
441 if (sc != NULL) {
442 rv = SSL_use_certificate_chain_file(cctx->ssl, value);
443 c = sc->cert;
444 } else {
445 rv = 0;
446 }
447 }
448 if (rv > 0 && c != NULL && cctx->flags & SSL_CONF_FLAG_REQUIRE_PRIVATE) {
449 char **pfilename = &cctx->cert_filename[c->key - c->pkeys];
450
451 OPENSSL_free(*pfilename);
452 *pfilename = OPENSSL_strdup(value);
453 if (*pfilename == NULL)
454 rv = 0;
455 }
456
457 return rv > 0;
458 }
459
cmd_PrivateKey(SSL_CONF_CTX * cctx,const char * value)460 static int cmd_PrivateKey(SSL_CONF_CTX *cctx, const char *value)
461 {
462 int rv = 1;
463 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
464 return -2;
465 if (cctx->ctx)
466 rv = SSL_CTX_use_PrivateKey_file(cctx->ctx, value, SSL_FILETYPE_PEM);
467 if (cctx->ssl)
468 rv = SSL_use_PrivateKey_file(cctx->ssl, value, SSL_FILETYPE_PEM);
469 return rv > 0;
470 }
471
cmd_ServerInfoFile(SSL_CONF_CTX * cctx,const char * value)472 static int cmd_ServerInfoFile(SSL_CONF_CTX *cctx, const char *value)
473 {
474 int rv = 1;
475 if (cctx->ctx)
476 rv = SSL_CTX_use_serverinfo_file(cctx->ctx, value);
477 return rv > 0;
478 }
479
do_store(SSL_CONF_CTX * cctx,const char * CAfile,const char * CApath,const char * CAstore,int verify_store)480 static int do_store(SSL_CONF_CTX *cctx,
481 const char *CAfile, const char *CApath, const char *CAstore,
482 int verify_store)
483 {
484 CERT *cert;
485 X509_STORE **st;
486 SSL_CTX *ctx;
487 OSSL_LIB_CTX *libctx = NULL;
488 const char *propq = NULL;
489
490 if (cctx->ctx != NULL) {
491 cert = cctx->ctx->cert;
492 ctx = cctx->ctx;
493 } else if (cctx->ssl != NULL) {
494 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(cctx->ssl);
495
496 if (sc == NULL)
497 return 0;
498
499 cert = sc->cert;
500 ctx = cctx->ssl->ctx;
501 } else {
502 return 1;
503 }
504 if (ctx != NULL) {
505 libctx = ctx->libctx;
506 propq = ctx->propq;
507 }
508 st = verify_store ? &cert->verify_store : &cert->chain_store;
509 if (*st == NULL) {
510 *st = X509_STORE_new();
511 if (*st == NULL)
512 return 0;
513 }
514
515 if (CAfile != NULL && !X509_STORE_load_file_ex(*st, CAfile, libctx, propq))
516 return 0;
517 if (CApath != NULL && !X509_STORE_load_path(*st, CApath))
518 return 0;
519 if (CAstore != NULL && !X509_STORE_load_store_ex(*st, CAstore, libctx,
520 propq))
521 return 0;
522 return 1;
523 }
524
cmd_ChainCAPath(SSL_CONF_CTX * cctx,const char * value)525 static int cmd_ChainCAPath(SSL_CONF_CTX *cctx, const char *value)
526 {
527 return do_store(cctx, NULL, value, NULL, 0);
528 }
529
cmd_ChainCAFile(SSL_CONF_CTX * cctx,const char * value)530 static int cmd_ChainCAFile(SSL_CONF_CTX *cctx, const char *value)
531 {
532 return do_store(cctx, value, NULL, NULL, 0);
533 }
534
cmd_ChainCAStore(SSL_CONF_CTX * cctx,const char * value)535 static int cmd_ChainCAStore(SSL_CONF_CTX *cctx, const char *value)
536 {
537 return do_store(cctx, NULL, NULL, value, 0);
538 }
539
cmd_VerifyCAPath(SSL_CONF_CTX * cctx,const char * value)540 static int cmd_VerifyCAPath(SSL_CONF_CTX *cctx, const char *value)
541 {
542 return do_store(cctx, NULL, value, NULL, 1);
543 }
544
cmd_VerifyCAFile(SSL_CONF_CTX * cctx,const char * value)545 static int cmd_VerifyCAFile(SSL_CONF_CTX *cctx, const char *value)
546 {
547 return do_store(cctx, value, NULL, NULL, 1);
548 }
549
cmd_VerifyCAStore(SSL_CONF_CTX * cctx,const char * value)550 static int cmd_VerifyCAStore(SSL_CONF_CTX *cctx, const char *value)
551 {
552 return do_store(cctx, NULL, NULL, value, 1);
553 }
554
cmd_RequestCAFile(SSL_CONF_CTX * cctx,const char * value)555 static int cmd_RequestCAFile(SSL_CONF_CTX *cctx, const char *value)
556 {
557 if (cctx->canames == NULL)
558 cctx->canames = sk_X509_NAME_new_null();
559 if (cctx->canames == NULL)
560 return 0;
561 return SSL_add_file_cert_subjects_to_stack(cctx->canames, value);
562 }
563
cmd_ClientCAFile(SSL_CONF_CTX * cctx,const char * value)564 static int cmd_ClientCAFile(SSL_CONF_CTX *cctx, const char *value)
565 {
566 return cmd_RequestCAFile(cctx, value);
567 }
568
cmd_RequestCAPath(SSL_CONF_CTX * cctx,const char * value)569 static int cmd_RequestCAPath(SSL_CONF_CTX *cctx, const char *value)
570 {
571 if (cctx->canames == NULL)
572 cctx->canames = sk_X509_NAME_new_null();
573 if (cctx->canames == NULL)
574 return 0;
575 return SSL_add_dir_cert_subjects_to_stack(cctx->canames, value);
576 }
577
cmd_ClientCAPath(SSL_CONF_CTX * cctx,const char * value)578 static int cmd_ClientCAPath(SSL_CONF_CTX *cctx, const char *value)
579 {
580 return cmd_RequestCAPath(cctx, value);
581 }
582
cmd_RequestCAStore(SSL_CONF_CTX * cctx,const char * value)583 static int cmd_RequestCAStore(SSL_CONF_CTX *cctx, const char *value)
584 {
585 if (cctx->canames == NULL)
586 cctx->canames = sk_X509_NAME_new_null();
587 if (cctx->canames == NULL)
588 return 0;
589 return SSL_add_store_cert_subjects_to_stack(cctx->canames, value);
590 }
591
cmd_ClientCAStore(SSL_CONF_CTX * cctx,const char * value)592 static int cmd_ClientCAStore(SSL_CONF_CTX *cctx, const char *value)
593 {
594 return cmd_RequestCAStore(cctx, value);
595 }
596
cmd_DHParameters(SSL_CONF_CTX * cctx,const char * value)597 static int cmd_DHParameters(SSL_CONF_CTX *cctx, const char *value)
598 {
599 int rv = 0;
600 EVP_PKEY *dhpkey = NULL;
601 BIO *in = NULL;
602 SSL_CTX *sslctx = (cctx->ssl != NULL) ? cctx->ssl->ctx : cctx->ctx;
603 OSSL_DECODER_CTX *decoderctx = NULL;
604
605 if (cctx->ctx != NULL || cctx->ssl != NULL) {
606 in = BIO_new(BIO_s_file());
607 if (in == NULL)
608 goto end;
609 if (BIO_read_filename(in, value) <= 0)
610 goto end;
611
612 decoderctx
613 = OSSL_DECODER_CTX_new_for_pkey(&dhpkey, "PEM", NULL, "DH",
614 OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS,
615 sslctx->libctx, sslctx->propq);
616 if (decoderctx == NULL)
617 goto end;
618 ERR_set_mark();
619 while (!OSSL_DECODER_from_bio(decoderctx, in)
620 && dhpkey == NULL
621 && !BIO_eof(in));
622 OSSL_DECODER_CTX_free(decoderctx);
623
624 if (dhpkey == NULL) {
625 ERR_clear_last_mark();
626 goto end;
627 }
628 ERR_pop_to_mark();
629 } else {
630 return 1;
631 }
632
633 if (cctx->ctx != NULL) {
634 if ((rv = SSL_CTX_set0_tmp_dh_pkey(cctx->ctx, dhpkey)) > 0)
635 dhpkey = NULL;
636 }
637 if (cctx->ssl != NULL) {
638 if ((rv = SSL_set0_tmp_dh_pkey(cctx->ssl, dhpkey)) > 0)
639 dhpkey = NULL;
640 }
641 end:
642 EVP_PKEY_free(dhpkey);
643 BIO_free(in);
644 return rv > 0;
645 }
646
cmd_RecordPadding(SSL_CONF_CTX * cctx,const char * value)647 static int cmd_RecordPadding(SSL_CONF_CTX *cctx, const char *value)
648 {
649 int rv = 0;
650 int block_size = atoi(value);
651
652 /*
653 * All we care about is a non-negative value,
654 * the setters check the range
655 */
656 if (block_size >= 0) {
657 if (cctx->ctx)
658 rv = SSL_CTX_set_block_padding(cctx->ctx, block_size);
659 if (cctx->ssl)
660 rv = SSL_set_block_padding(cctx->ssl, block_size);
661 }
662 return rv;
663 }
664
665
cmd_NumTickets(SSL_CONF_CTX * cctx,const char * value)666 static int cmd_NumTickets(SSL_CONF_CTX *cctx, const char *value)
667 {
668 int rv = 0;
669 int num_tickets = atoi(value);
670
671 if (num_tickets >= 0) {
672 if (cctx->ctx)
673 rv = SSL_CTX_set_num_tickets(cctx->ctx, num_tickets);
674 if (cctx->ssl)
675 rv = SSL_set_num_tickets(cctx->ssl, num_tickets);
676 }
677 return rv;
678 }
679
680 typedef struct {
681 int (*cmd) (SSL_CONF_CTX *cctx, const char *value);
682 const char *str_file;
683 const char *str_cmdline;
684 unsigned short flags;
685 unsigned short value_type;
686 } ssl_conf_cmd_tbl;
687
688 /* Table of supported parameters */
689
690 #define SSL_CONF_CMD(name, cmdopt, flags, type) \
691 {cmd_##name, #name, cmdopt, flags, type}
692
693 #define SSL_CONF_CMD_STRING(name, cmdopt, flags) \
694 SSL_CONF_CMD(name, cmdopt, flags, SSL_CONF_TYPE_STRING)
695
696 #define SSL_CONF_CMD_SWITCH(name, flags) \
697 {0, NULL, name, flags, SSL_CONF_TYPE_NONE}
698
699 /* See apps/include/opt.h if you change this table. */
700 /* The SSL_CONF_CMD_SWITCH should be the same order as ssl_cmd_switches */
701 static const ssl_conf_cmd_tbl ssl_conf_cmds[] = {
702 SSL_CONF_CMD_SWITCH("no_ssl3", 0),
703 SSL_CONF_CMD_SWITCH("no_tls1", 0),
704 SSL_CONF_CMD_SWITCH("no_tls1_1", 0),
705 SSL_CONF_CMD_SWITCH("no_tls1_2", 0),
706 SSL_CONF_CMD_SWITCH("no_tls1_3", 0),
707 SSL_CONF_CMD_SWITCH("bugs", 0),
708 SSL_CONF_CMD_SWITCH("no_comp", 0),
709 SSL_CONF_CMD_SWITCH("comp", 0),
710 SSL_CONF_CMD_SWITCH("ecdh_single", SSL_CONF_FLAG_SERVER),
711 SSL_CONF_CMD_SWITCH("no_ticket", 0),
712 SSL_CONF_CMD_SWITCH("serverpref", SSL_CONF_FLAG_SERVER),
713 SSL_CONF_CMD_SWITCH("legacy_renegotiation", 0),
714 SSL_CONF_CMD_SWITCH("client_renegotiation", SSL_CONF_FLAG_SERVER),
715 SSL_CONF_CMD_SWITCH("legacy_server_connect", SSL_CONF_FLAG_CLIENT),
716 SSL_CONF_CMD_SWITCH("no_renegotiation", 0),
717 SSL_CONF_CMD_SWITCH("no_resumption_on_reneg", SSL_CONF_FLAG_SERVER),
718 SSL_CONF_CMD_SWITCH("no_legacy_server_connect", SSL_CONF_FLAG_CLIENT),
719 SSL_CONF_CMD_SWITCH("allow_no_dhe_kex", 0),
720 SSL_CONF_CMD_SWITCH("prioritize_chacha", SSL_CONF_FLAG_SERVER),
721 SSL_CONF_CMD_SWITCH("strict", 0),
722 SSL_CONF_CMD_SWITCH("no_middlebox", 0),
723 SSL_CONF_CMD_SWITCH("anti_replay", SSL_CONF_FLAG_SERVER),
724 SSL_CONF_CMD_SWITCH("no_anti_replay", SSL_CONF_FLAG_SERVER),
725 SSL_CONF_CMD_SWITCH("no_etm", 0),
726 SSL_CONF_CMD_SWITCH("no_ems", 0),
727 SSL_CONF_CMD_STRING(SignatureAlgorithms, "sigalgs", 0),
728 SSL_CONF_CMD_STRING(ClientSignatureAlgorithms, "client_sigalgs", 0),
729 SSL_CONF_CMD_STRING(Curves, "curves", 0),
730 SSL_CONF_CMD_STRING(Groups, "groups", 0),
731 SSL_CONF_CMD_STRING(ECDHParameters, "named_curve", SSL_CONF_FLAG_SERVER),
732 SSL_CONF_CMD_STRING(CipherString, "cipher", 0),
733 SSL_CONF_CMD_STRING(Ciphersuites, "ciphersuites", 0),
734 SSL_CONF_CMD_STRING(Protocol, NULL, 0),
735 SSL_CONF_CMD_STRING(MinProtocol, "min_protocol", 0),
736 SSL_CONF_CMD_STRING(MaxProtocol, "max_protocol", 0),
737 SSL_CONF_CMD_STRING(Options, NULL, 0),
738 SSL_CONF_CMD_STRING(VerifyMode, NULL, 0),
739 SSL_CONF_CMD(Certificate, "cert", SSL_CONF_FLAG_CERTIFICATE,
740 SSL_CONF_TYPE_FILE),
741 SSL_CONF_CMD(PrivateKey, "key", SSL_CONF_FLAG_CERTIFICATE,
742 SSL_CONF_TYPE_FILE),
743 SSL_CONF_CMD(ServerInfoFile, NULL,
744 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
745 SSL_CONF_TYPE_FILE),
746 SSL_CONF_CMD(ChainCAPath, "chainCApath", SSL_CONF_FLAG_CERTIFICATE,
747 SSL_CONF_TYPE_DIR),
748 SSL_CONF_CMD(ChainCAFile, "chainCAfile", SSL_CONF_FLAG_CERTIFICATE,
749 SSL_CONF_TYPE_FILE),
750 SSL_CONF_CMD(ChainCAStore, "chainCAstore", SSL_CONF_FLAG_CERTIFICATE,
751 SSL_CONF_TYPE_STORE),
752 SSL_CONF_CMD(VerifyCAPath, "verifyCApath", SSL_CONF_FLAG_CERTIFICATE,
753 SSL_CONF_TYPE_DIR),
754 SSL_CONF_CMD(VerifyCAFile, "verifyCAfile", SSL_CONF_FLAG_CERTIFICATE,
755 SSL_CONF_TYPE_FILE),
756 SSL_CONF_CMD(VerifyCAStore, "verifyCAstore", SSL_CONF_FLAG_CERTIFICATE,
757 SSL_CONF_TYPE_STORE),
758 SSL_CONF_CMD(RequestCAFile, "requestCAFile", SSL_CONF_FLAG_CERTIFICATE,
759 SSL_CONF_TYPE_FILE),
760 SSL_CONF_CMD(ClientCAFile, NULL,
761 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
762 SSL_CONF_TYPE_FILE),
763 SSL_CONF_CMD(RequestCAPath, NULL, SSL_CONF_FLAG_CERTIFICATE,
764 SSL_CONF_TYPE_DIR),
765 SSL_CONF_CMD(ClientCAPath, NULL,
766 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
767 SSL_CONF_TYPE_DIR),
768 SSL_CONF_CMD(RequestCAStore, "requestCAStore", SSL_CONF_FLAG_CERTIFICATE,
769 SSL_CONF_TYPE_STORE),
770 SSL_CONF_CMD(ClientCAStore, NULL,
771 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
772 SSL_CONF_TYPE_STORE),
773 SSL_CONF_CMD(DHParameters, "dhparam",
774 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
775 SSL_CONF_TYPE_FILE),
776 SSL_CONF_CMD_STRING(RecordPadding, "record_padding", 0),
777 SSL_CONF_CMD_STRING(NumTickets, "num_tickets", SSL_CONF_FLAG_SERVER),
778 };
779
780 /* Supported switches: must match order of switches in ssl_conf_cmds */
781 static const ssl_switch_tbl ssl_cmd_switches[] = {
782 {SSL_OP_NO_SSLv3, 0}, /* no_ssl3 */
783 {SSL_OP_NO_TLSv1, 0}, /* no_tls1 */
784 {SSL_OP_NO_TLSv1_1, 0}, /* no_tls1_1 */
785 {SSL_OP_NO_TLSv1_2, 0}, /* no_tls1_2 */
786 {SSL_OP_NO_TLSv1_3, 0}, /* no_tls1_3 */
787 {SSL_OP_ALL, 0}, /* bugs */
788 {SSL_OP_NO_COMPRESSION, 0}, /* no_comp */
789 {SSL_OP_NO_COMPRESSION, SSL_TFLAG_INV}, /* comp */
790 {SSL_OP_SINGLE_ECDH_USE, 0}, /* ecdh_single */
791 {SSL_OP_NO_TICKET, 0}, /* no_ticket */
792 {SSL_OP_CIPHER_SERVER_PREFERENCE, 0}, /* serverpref */
793 /* legacy_renegotiation */
794 {SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION, 0},
795 /* Allow client renegotiation */
796 {SSL_OP_ALLOW_CLIENT_RENEGOTIATION, 0},
797 /* legacy_server_connect */
798 {SSL_OP_LEGACY_SERVER_CONNECT, 0},
799 /* no_renegotiation */
800 {SSL_OP_NO_RENEGOTIATION, 0},
801 /* no_resumption_on_reneg */
802 {SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION, 0},
803 /* no_legacy_server_connect */
804 {SSL_OP_LEGACY_SERVER_CONNECT, SSL_TFLAG_INV},
805 /* allow_no_dhe_kex */
806 {SSL_OP_ALLOW_NO_DHE_KEX, 0},
807 /* chacha reprioritization */
808 {SSL_OP_PRIORITIZE_CHACHA, 0},
809 {SSL_CERT_FLAG_TLS_STRICT, SSL_TFLAG_CERT}, /* strict */
810 /* no_middlebox */
811 {SSL_OP_ENABLE_MIDDLEBOX_COMPAT, SSL_TFLAG_INV},
812 /* anti_replay */
813 {SSL_OP_NO_ANTI_REPLAY, SSL_TFLAG_INV},
814 /* no_anti_replay */
815 {SSL_OP_NO_ANTI_REPLAY, 0},
816 /* no Encrypt-then-Mac */
817 {SSL_OP_NO_ENCRYPT_THEN_MAC, 0},
818 /* no Extended master secret */
819 {SSL_OP_NO_EXTENDED_MASTER_SECRET, 0},
820 };
821
ssl_conf_cmd_skip_prefix(SSL_CONF_CTX * cctx,const char ** pcmd)822 static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX *cctx, const char **pcmd)
823 {
824 if (pcmd == NULL || *pcmd == NULL)
825 return 0;
826 /* If a prefix is set, check and skip */
827 if (cctx->prefix) {
828 if (strlen(*pcmd) <= cctx->prefixlen)
829 return 0;
830 if (cctx->flags & SSL_CONF_FLAG_CMDLINE &&
831 strncmp(*pcmd, cctx->prefix, cctx->prefixlen))
832 return 0;
833 if (cctx->flags & SSL_CONF_FLAG_FILE &&
834 OPENSSL_strncasecmp(*pcmd, cctx->prefix, cctx->prefixlen))
835 return 0;
836 *pcmd += cctx->prefixlen;
837 } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
838 if (**pcmd != '-' || !(*pcmd)[1])
839 return 0;
840 *pcmd += 1;
841 }
842 return 1;
843 }
844
845 /* Determine if a command is allowed according to cctx flags */
ssl_conf_cmd_allowed(SSL_CONF_CTX * cctx,const ssl_conf_cmd_tbl * t)846 static int ssl_conf_cmd_allowed(SSL_CONF_CTX *cctx, const ssl_conf_cmd_tbl * t)
847 {
848 unsigned int tfl = t->flags;
849 unsigned int cfl = cctx->flags;
850 if ((tfl & SSL_CONF_FLAG_SERVER) && !(cfl & SSL_CONF_FLAG_SERVER))
851 return 0;
852 if ((tfl & SSL_CONF_FLAG_CLIENT) && !(cfl & SSL_CONF_FLAG_CLIENT))
853 return 0;
854 if ((tfl & SSL_CONF_FLAG_CERTIFICATE)
855 && !(cfl & SSL_CONF_FLAG_CERTIFICATE))
856 return 0;
857 return 1;
858 }
859
ssl_conf_cmd_lookup(SSL_CONF_CTX * cctx,const char * cmd)860 static const ssl_conf_cmd_tbl *ssl_conf_cmd_lookup(SSL_CONF_CTX *cctx,
861 const char *cmd)
862 {
863 const ssl_conf_cmd_tbl *t;
864 size_t i;
865 if (cmd == NULL)
866 return NULL;
867
868 /* Look for matching parameter name in table */
869 for (i = 0, t = ssl_conf_cmds; i < OSSL_NELEM(ssl_conf_cmds); i++, t++) {
870 if (ssl_conf_cmd_allowed(cctx, t)) {
871 if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
872 if (t->str_cmdline && strcmp(t->str_cmdline, cmd) == 0)
873 return t;
874 }
875 if (cctx->flags & SSL_CONF_FLAG_FILE) {
876 if (t->str_file && OPENSSL_strcasecmp(t->str_file, cmd) == 0)
877 return t;
878 }
879 }
880 }
881 return NULL;
882 }
883
ctrl_switch_option(SSL_CONF_CTX * cctx,const ssl_conf_cmd_tbl * cmd)884 static int ctrl_switch_option(SSL_CONF_CTX *cctx, const ssl_conf_cmd_tbl * cmd)
885 {
886 /* Find index of command in table */
887 size_t idx = cmd - ssl_conf_cmds;
888 const ssl_switch_tbl *scmd;
889 /* Sanity check index */
890 if (idx >= OSSL_NELEM(ssl_cmd_switches))
891 return 0;
892 /* Obtain switches entry with same index */
893 scmd = ssl_cmd_switches + idx;
894 ssl_set_option(cctx, scmd->name_flags, scmd->option_value, 1);
895 return 1;
896 }
897
SSL_CONF_cmd(SSL_CONF_CTX * cctx,const char * cmd,const char * value)898 int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value)
899 {
900 const ssl_conf_cmd_tbl *runcmd;
901 if (cmd == NULL) {
902 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_NULL_CMD_NAME);
903 return 0;
904 }
905
906 if (!ssl_conf_cmd_skip_prefix(cctx, &cmd))
907 return -2;
908
909 runcmd = ssl_conf_cmd_lookup(cctx, cmd);
910
911 if (runcmd) {
912 int rv;
913 if (runcmd->value_type == SSL_CONF_TYPE_NONE) {
914 return ctrl_switch_option(cctx, runcmd);
915 }
916 if (value == NULL)
917 return -3;
918 rv = runcmd->cmd(cctx, value);
919 if (rv > 0)
920 return 2;
921 if (rv == -2)
922 return -2;
923 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS)
924 ERR_raise_data(ERR_LIB_SSL, SSL_R_BAD_VALUE,
925 "cmd=%s, value=%s", cmd, value);
926 return 0;
927 }
928
929 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS)
930 ERR_raise_data(ERR_LIB_SSL, SSL_R_UNKNOWN_CMD_NAME, "cmd=%s", cmd);
931
932 return -2;
933 }
934
SSL_CONF_cmd_argv(SSL_CONF_CTX * cctx,int * pargc,char *** pargv)935 int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv)
936 {
937 int rv;
938 const char *arg = NULL, *argn;
939
940 if (pargc != NULL && *pargc == 0)
941 return 0;
942 if (pargc == NULL || *pargc > 0)
943 arg = **pargv;
944 if (arg == NULL)
945 return 0;
946 if (pargc == NULL || *pargc > 1)
947 argn = (*pargv)[1];
948 else
949 argn = NULL;
950 cctx->flags &= ~SSL_CONF_FLAG_FILE;
951 cctx->flags |= SSL_CONF_FLAG_CMDLINE;
952 rv = SSL_CONF_cmd(cctx, arg, argn);
953 if (rv > 0) {
954 /* Success: update pargc, pargv */
955 (*pargv) += rv;
956 if (pargc)
957 (*pargc) -= rv;
958 return rv;
959 }
960 /* Unknown switch: indicate no arguments processed */
961 if (rv == -2)
962 return 0;
963 /* Some error occurred processing command, return fatal error */
964 if (rv == 0)
965 return -1;
966 return rv;
967 }
968
SSL_CONF_cmd_value_type(SSL_CONF_CTX * cctx,const char * cmd)969 int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd)
970 {
971 if (ssl_conf_cmd_skip_prefix(cctx, &cmd)) {
972 const ssl_conf_cmd_tbl *runcmd;
973 runcmd = ssl_conf_cmd_lookup(cctx, cmd);
974 if (runcmd)
975 return runcmd->value_type;
976 }
977 return SSL_CONF_TYPE_UNKNOWN;
978 }
979
SSL_CONF_CTX_new(void)980 SSL_CONF_CTX *SSL_CONF_CTX_new(void)
981 {
982 SSL_CONF_CTX *ret = OPENSSL_zalloc(sizeof(*ret));
983
984 return ret;
985 }
986
SSL_CONF_CTX_finish(SSL_CONF_CTX * cctx)987 int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx)
988 {
989 /* See if any certificates are missing private keys */
990 size_t i;
991 CERT *c = NULL;
992
993 if (cctx->ctx != NULL) {
994 c = cctx->ctx->cert;
995 } else if (cctx->ssl != NULL) {
996 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(cctx->ssl);
997
998 if (sc != NULL)
999 c = sc->cert;
1000 }
1001 if (c != NULL && cctx->flags & SSL_CONF_FLAG_REQUIRE_PRIVATE) {
1002 for (i = 0; i < SSL_PKEY_NUM; i++) {
1003 const char *p = cctx->cert_filename[i];
1004 /*
1005 * If missing private key try to load one from certificate file
1006 */
1007 if (p && !c->pkeys[i].privatekey) {
1008 if (!cmd_PrivateKey(cctx, p))
1009 return 0;
1010 }
1011 }
1012 }
1013 if (cctx->canames) {
1014 if (cctx->ssl)
1015 SSL_set0_CA_list(cctx->ssl, cctx->canames);
1016 else if (cctx->ctx)
1017 SSL_CTX_set0_CA_list(cctx->ctx, cctx->canames);
1018 else
1019 sk_X509_NAME_pop_free(cctx->canames, X509_NAME_free);
1020 cctx->canames = NULL;
1021 }
1022 return 1;
1023 }
1024
SSL_CONF_CTX_free(SSL_CONF_CTX * cctx)1025 void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx)
1026 {
1027 if (cctx) {
1028 size_t i;
1029 for (i = 0; i < SSL_PKEY_NUM; i++)
1030 OPENSSL_free(cctx->cert_filename[i]);
1031 OPENSSL_free(cctx->prefix);
1032 sk_X509_NAME_pop_free(cctx->canames, X509_NAME_free);
1033 OPENSSL_free(cctx);
1034 }
1035 }
1036
SSL_CONF_CTX_set_flags(SSL_CONF_CTX * cctx,unsigned int flags)1037 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags)
1038 {
1039 cctx->flags |= flags;
1040 return cctx->flags;
1041 }
1042
SSL_CONF_CTX_clear_flags(SSL_CONF_CTX * cctx,unsigned int flags)1043 unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags)
1044 {
1045 cctx->flags &= ~flags;
1046 return cctx->flags;
1047 }
1048
SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX * cctx,const char * pre)1049 int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre)
1050 {
1051 char *tmp = NULL;
1052 if (pre) {
1053 tmp = OPENSSL_strdup(pre);
1054 if (tmp == NULL)
1055 return 0;
1056 }
1057 OPENSSL_free(cctx->prefix);
1058 cctx->prefix = tmp;
1059 if (tmp)
1060 cctx->prefixlen = strlen(tmp);
1061 else
1062 cctx->prefixlen = 0;
1063 return 1;
1064 }
1065
SSL_CONF_CTX_set_ssl(SSL_CONF_CTX * cctx,SSL * ssl)1066 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl)
1067 {
1068 cctx->ssl = ssl;
1069 cctx->ctx = NULL;
1070 if (ssl != NULL) {
1071 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1072
1073 if (sc == NULL)
1074 return;
1075 cctx->poptions = &sc->options;
1076 cctx->min_version = &sc->min_proto_version;
1077 cctx->max_version = &sc->max_proto_version;
1078 cctx->pcert_flags = &sc->cert->cert_flags;
1079 cctx->pvfy_flags = &sc->verify_mode;
1080 } else {
1081 cctx->poptions = NULL;
1082 cctx->min_version = NULL;
1083 cctx->max_version = NULL;
1084 cctx->pcert_flags = NULL;
1085 cctx->pvfy_flags = NULL;
1086 }
1087 }
1088
SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX * cctx,SSL_CTX * ctx)1089 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx)
1090 {
1091 cctx->ctx = ctx;
1092 cctx->ssl = NULL;
1093 if (ctx) {
1094 cctx->poptions = &ctx->options;
1095 cctx->min_version = &ctx->min_proto_version;
1096 cctx->max_version = &ctx->max_proto_version;
1097 cctx->pcert_flags = &ctx->cert->cert_flags;
1098 cctx->pvfy_flags = &ctx->verify_mode;
1099 } else {
1100 cctx->poptions = NULL;
1101 cctx->min_version = NULL;
1102 cctx->max_version = NULL;
1103 cctx->pcert_flags = NULL;
1104 cctx->pvfy_flags = NULL;
1105 }
1106 }
1107
