1 /*
2 * Copyright 2012-2025 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 "internal/e_os.h"
11
12 #include <stdio.h>
13 #include "ssl_local.h"
14 #include <openssl/conf.h>
15 #include <openssl/objects.h>
16 #include <openssl/decoder.h>
17 #include <openssl/core_dispatch.h>
18 #include "internal/nelem.h"
19 #include "internal/ssl_unwrap.h"
20
21 /*
22 * structure holding name tables. This is used for permitted elements in lists
23 * such as TLSv1.
24 */
25
26 typedef struct {
27 const char *name;
28 int namelen;
29 unsigned int name_flags;
30 uint64_t option_value;
31 } ssl_flag_tbl;
32
33 /* Switch table: use for single command line switches like no_tls2 */
34 typedef struct {
35 uint64_t option_value;
36 unsigned int name_flags;
37 } ssl_switch_tbl;
38
39 /* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
40 #define SSL_TFLAG_INV 0x1
41 /* Mask for type of flag referred to */
42 #define SSL_TFLAG_TYPE_MASK 0xf00
43 /* Flag is for options */
44 #define SSL_TFLAG_OPTION 0x000
45 /* Flag is for cert_flags */
46 #define SSL_TFLAG_CERT 0x100
47 /* Flag is for verify mode */
48 #define SSL_TFLAG_VFY 0x200
49 /* Option can only be used for clients */
50 #define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
51 /* Option can only be used for servers */
52 #define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
53 #define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
54
55 #define SSL_FLAG_TBL(str, flag) \
56 {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
57 #define SSL_FLAG_TBL_SRV(str, flag) \
58 {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
59 #define SSL_FLAG_TBL_CLI(str, flag) \
60 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
61 #define SSL_FLAG_TBL_INV(str, flag) \
62 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
63 #define SSL_FLAG_TBL_SRV_INV(str, flag) \
64 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
65 #define SSL_FLAG_TBL_CERT(str, flag) \
66 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
67
68 #define SSL_FLAG_VFY_CLI(str, flag) \
69 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_CLIENT, flag}
70 #define SSL_FLAG_VFY_SRV(str, flag) \
71 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_SERVER, flag}
72
73 /*
74 * Opaque structure containing SSL configuration context.
75 */
76
77 struct ssl_conf_ctx_st {
78 /*
79 * Various flags indicating (among other things) which options we will
80 * recognise.
81 */
82 unsigned int flags;
83 /* Prefix and length of commands */
84 char *prefix;
85 size_t prefixlen;
86 /* SSL_CTX or SSL structure to perform operations on */
87 SSL_CTX *ctx;
88 SSL *ssl;
89 /* Pointer to SSL or SSL_CTX options field or NULL if none */
90 uint64_t *poptions;
91 /* Certificate filenames for each type */
92 char **cert_filename;
93 /* Number of elements in the cert_filename array */
94 size_t num_cert_filename;
95 /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
96 uint32_t *pcert_flags;
97 /* Pointer to SSL or SSL_CTX verify_mode or NULL if none */
98 uint32_t *pvfy_flags;
99 /* Pointer to SSL or SSL_CTX min_version field or NULL if none */
100 int *min_version;
101 /* Pointer to SSL or SSL_CTX max_version field or NULL if none */
102 int *max_version;
103 /* Current flag table being worked on */
104 const ssl_flag_tbl *tbl;
105 /* Size of table */
106 size_t ntbl;
107 /* Client CA names */
108 STACK_OF(X509_NAME) *canames;
109 };
110
ssl_set_option(SSL_CONF_CTX * cctx,unsigned int name_flags,uint64_t option_value,int onoff)111 static void ssl_set_option(SSL_CONF_CTX *cctx, unsigned int name_flags,
112 uint64_t option_value, int onoff)
113 {
114 uint32_t *pflags;
115
116 if (cctx->poptions == NULL)
117 return;
118 if (name_flags & SSL_TFLAG_INV)
119 onoff ^= 1;
120 switch (name_flags & SSL_TFLAG_TYPE_MASK) {
121
122 case SSL_TFLAG_CERT:
123 pflags = cctx->pcert_flags;
124 break;
125
126 case SSL_TFLAG_VFY:
127 pflags = cctx->pvfy_flags;
128 break;
129
130 case SSL_TFLAG_OPTION:
131 if (onoff)
132 *cctx->poptions |= option_value;
133 else
134 *cctx->poptions &= ~option_value;
135 return;
136
137 default:
138 return;
139
140 }
141 if (onoff)
142 *pflags |= option_value;
143 else
144 *pflags &= ~option_value;
145 }
146
ssl_match_option(SSL_CONF_CTX * cctx,const ssl_flag_tbl * tbl,const char * name,int namelen,int onoff)147 static int ssl_match_option(SSL_CONF_CTX *cctx, const ssl_flag_tbl *tbl,
148 const char *name, int namelen, int onoff)
149 {
150 /* If name not relevant for context skip */
151 if (!(cctx->flags & tbl->name_flags & SSL_TFLAG_BOTH))
152 return 0;
153 if (namelen == -1) {
154 if (strcmp(tbl->name, name))
155 return 0;
156 } else if (tbl->namelen != namelen
157 || OPENSSL_strncasecmp(tbl->name, name, namelen))
158 return 0;
159 ssl_set_option(cctx, tbl->name_flags, tbl->option_value, onoff);
160 return 1;
161 }
162
ssl_set_option_list(const char * elem,int len,void * usr)163 static int ssl_set_option_list(const char *elem, int len, void *usr)
164 {
165 SSL_CONF_CTX *cctx = usr;
166 size_t i;
167 const ssl_flag_tbl *tbl;
168 int onoff = 1;
169 /*
170 * len == -1 indicates not being called in list context, just for single
171 * command line switches, so don't allow +, -.
172 */
173 if (elem == NULL)
174 return 0;
175 if (len != -1) {
176 if (*elem == '+') {
177 elem++;
178 len--;
179 onoff = 1;
180 } else if (*elem == '-') {
181 elem++;
182 len--;
183 onoff = 0;
184 }
185 }
186 for (i = 0, tbl = cctx->tbl; i < cctx->ntbl; i++, tbl++) {
187 if (ssl_match_option(cctx, tbl, elem, len, onoff))
188 return 1;
189 }
190 return 0;
191 }
192
193 /* Set supported signature algorithms */
cmd_SignatureAlgorithms(SSL_CONF_CTX * cctx,const char * value)194 static int cmd_SignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
195 {
196 int rv;
197 if (cctx->ssl)
198 rv = SSL_set1_sigalgs_list(cctx->ssl, value);
199 /* NB: ctx == NULL performs syntax checking only */
200 else
201 rv = SSL_CTX_set1_sigalgs_list(cctx->ctx, value);
202 return rv > 0;
203 }
204
205 /* Set supported client signature algorithms */
cmd_ClientSignatureAlgorithms(SSL_CONF_CTX * cctx,const char * value)206 static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
207 {
208 int rv;
209 if (cctx->ssl)
210 rv = SSL_set1_client_sigalgs_list(cctx->ssl, value);
211 /* NB: ctx == NULL performs syntax checking only */
212 else
213 rv = SSL_CTX_set1_client_sigalgs_list(cctx->ctx, value);
214 return rv > 0;
215 }
216
cmd_Groups(SSL_CONF_CTX * cctx,const char * value)217 static int cmd_Groups(SSL_CONF_CTX *cctx, const char *value)
218 {
219 int rv;
220 if (cctx->ssl)
221 rv = SSL_set1_groups_list(cctx->ssl, value);
222 /* NB: ctx == NULL performs syntax checking only */
223 else
224 rv = SSL_CTX_set1_groups_list(cctx->ctx, value);
225 return rv > 0;
226 }
227
228 /* This is the old name for cmd_Groups - retained for backwards compatibility */
cmd_Curves(SSL_CONF_CTX * cctx,const char * value)229 static int cmd_Curves(SSL_CONF_CTX *cctx, const char *value)
230 {
231 return cmd_Groups(cctx, value);
232 }
233
234 /* ECDH temporary parameters */
cmd_ECDHParameters(SSL_CONF_CTX * cctx,const char * value)235 static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value)
236 {
237 int rv = 1;
238
239 /* Ignore values supported by 1.0.2 for the automatic selection */
240 if ((cctx->flags & SSL_CONF_FLAG_FILE)
241 && (OPENSSL_strcasecmp(value, "+automatic") == 0
242 || OPENSSL_strcasecmp(value, "automatic") == 0))
243 return 1;
244 if ((cctx->flags & SSL_CONF_FLAG_CMDLINE) &&
245 strcmp(value, "auto") == 0)
246 return 1;
247
248 /* ECDHParameters accepts a single group name */
249 if (strchr(value, ':') != NULL)
250 return 0;
251
252 if (cctx->ctx)
253 rv = SSL_CTX_set1_groups_list(cctx->ctx, value);
254 else if (cctx->ssl)
255 rv = SSL_set1_groups_list(cctx->ssl, value);
256
257 return rv > 0;
258 }
259
cmd_CipherString(SSL_CONF_CTX * cctx,const char * value)260 static int cmd_CipherString(SSL_CONF_CTX *cctx, const char *value)
261 {
262 int rv = 1;
263
264 if (cctx->ctx)
265 rv = SSL_CTX_set_cipher_list(cctx->ctx, value);
266 if (cctx->ssl)
267 rv = SSL_set_cipher_list(cctx->ssl, value);
268 return rv > 0;
269 }
270
cmd_Ciphersuites(SSL_CONF_CTX * cctx,const char * value)271 static int cmd_Ciphersuites(SSL_CONF_CTX *cctx, const char *value)
272 {
273 int rv = 1;
274
275 if (cctx->ctx)
276 rv = SSL_CTX_set_ciphersuites(cctx->ctx, value);
277 if (cctx->ssl)
278 rv = SSL_set_ciphersuites(cctx->ssl, value);
279 return rv > 0;
280 }
281
cmd_Protocol(SSL_CONF_CTX * cctx,const char * value)282 static int cmd_Protocol(SSL_CONF_CTX *cctx, const char *value)
283 {
284 static const ssl_flag_tbl ssl_protocol_list[] = {
285 SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK),
286 SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2),
287 SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3),
288 SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1),
289 SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1),
290 SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2),
291 SSL_FLAG_TBL_INV("TLSv1.3", SSL_OP_NO_TLSv1_3),
292 SSL_FLAG_TBL_INV("DTLSv1", SSL_OP_NO_DTLSv1),
293 SSL_FLAG_TBL_INV("DTLSv1.2", SSL_OP_NO_DTLSv1_2)
294 };
295 cctx->tbl = ssl_protocol_list;
296 cctx->ntbl = OSSL_NELEM(ssl_protocol_list);
297 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
298 }
299
300 /*
301 * protocol_from_string - converts a protocol version string to a number
302 *
303 * Returns -1 on failure or the version on success
304 */
protocol_from_string(const char * value)305 static int protocol_from_string(const char *value)
306 {
307 struct protocol_versions {
308 const char *name;
309 int version;
310 };
311 /*
312 * Note: To avoid breaking previously valid configurations, we must retain
313 * legacy entries in this table even if the underlying protocol is no
314 * longer supported. This also means that the constants SSL3_VERSION, ...
315 * need to be retained indefinitely. This table can only grow, never
316 * shrink.
317 */
318 static const struct protocol_versions versions[] = {
319 {"None", 0},
320 {"SSLv3", SSL3_VERSION},
321 {"TLSv1", TLS1_VERSION},
322 {"TLSv1.1", TLS1_1_VERSION},
323 {"TLSv1.2", TLS1_2_VERSION},
324 {"TLSv1.3", TLS1_3_VERSION},
325 {"DTLSv1", DTLS1_VERSION},
326 {"DTLSv1.2", DTLS1_2_VERSION}
327 };
328 size_t i;
329 size_t n = OSSL_NELEM(versions);
330
331 for (i = 0; i < n; i++)
332 if (strcmp(versions[i].name, value) == 0)
333 return versions[i].version;
334 return -1;
335 }
336
min_max_proto(SSL_CONF_CTX * cctx,const char * value,int * bound)337 static int min_max_proto(SSL_CONF_CTX *cctx, const char *value, int *bound)
338 {
339 int method_version;
340 int new_version;
341
342 if (cctx->ctx != NULL)
343 method_version = cctx->ctx->method->version;
344 else if (cctx->ssl != NULL)
345 method_version = cctx->ssl->defltmeth->version;
346 else
347 return 0;
348 if ((new_version = protocol_from_string(value)) < 0)
349 return 0;
350 return ssl_set_version_bound(method_version, new_version, bound);
351 }
352
353 /*
354 * cmd_MinProtocol - Set min protocol version
355 * @cctx: config structure to save settings in
356 * @value: The min protocol version in string form
357 *
358 * Returns 1 on success and 0 on failure.
359 */
cmd_MinProtocol(SSL_CONF_CTX * cctx,const char * value)360 static int cmd_MinProtocol(SSL_CONF_CTX *cctx, const char *value)
361 {
362 return min_max_proto(cctx, value, cctx->min_version);
363 }
364
365 /*
366 * cmd_MaxProtocol - Set max protocol version
367 * @cctx: config structure to save settings in
368 * @value: The max protocol version in string form
369 *
370 * Returns 1 on success and 0 on failure.
371 */
cmd_MaxProtocol(SSL_CONF_CTX * cctx,const char * value)372 static int cmd_MaxProtocol(SSL_CONF_CTX *cctx, const char *value)
373 {
374 return min_max_proto(cctx, value, cctx->max_version);
375 }
376
cmd_Options(SSL_CONF_CTX * cctx,const char * value)377 static int cmd_Options(SSL_CONF_CTX *cctx, const char *value)
378 {
379 static const ssl_flag_tbl ssl_option_list[] = {
380 SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET),
381 SSL_FLAG_TBL_INV("EmptyFragments",
382 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS),
383 SSL_FLAG_TBL("Bugs", SSL_OP_ALL),
384 SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION),
385 SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_SERVER_PREFERENCE),
386 SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
387 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
388 SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE),
389 SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE),
390 SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
391 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
392 SSL_FLAG_TBL("UnsafeLegacyServerConnect",
393 SSL_OP_LEGACY_SERVER_CONNECT),
394 SSL_FLAG_TBL("ClientRenegotiation",
395 SSL_OP_ALLOW_CLIENT_RENEGOTIATION),
396 SSL_FLAG_TBL_INV("EncryptThenMac", SSL_OP_NO_ENCRYPT_THEN_MAC),
397 SSL_FLAG_TBL("NoRenegotiation", SSL_OP_NO_RENEGOTIATION),
398 SSL_FLAG_TBL("AllowNoDHEKEX", SSL_OP_ALLOW_NO_DHE_KEX),
399 SSL_FLAG_TBL("PreferNoDHEKEX", SSL_OP_PREFER_NO_DHE_KEX),
400 SSL_FLAG_TBL("PrioritizeChaCha", SSL_OP_PRIORITIZE_CHACHA),
401 SSL_FLAG_TBL("MiddleboxCompat", SSL_OP_ENABLE_MIDDLEBOX_COMPAT),
402 SSL_FLAG_TBL_INV("AntiReplay", SSL_OP_NO_ANTI_REPLAY),
403 SSL_FLAG_TBL_INV("ExtendedMasterSecret", SSL_OP_NO_EXTENDED_MASTER_SECRET),
404 SSL_FLAG_TBL_INV("CANames", SSL_OP_DISABLE_TLSEXT_CA_NAMES),
405 SSL_FLAG_TBL("KTLS", SSL_OP_ENABLE_KTLS),
406 SSL_FLAG_TBL_CERT("StrictCertCheck", SSL_CERT_FLAG_TLS_STRICT),
407 SSL_FLAG_TBL_INV("TxCertificateCompression", SSL_OP_NO_TX_CERTIFICATE_COMPRESSION),
408 SSL_FLAG_TBL_INV("RxCertificateCompression", SSL_OP_NO_RX_CERTIFICATE_COMPRESSION),
409 SSL_FLAG_TBL("KTLSTxZerocopySendfile", SSL_OP_ENABLE_KTLS_TX_ZEROCOPY_SENDFILE),
410 SSL_FLAG_TBL("IgnoreUnexpectedEOF", SSL_OP_IGNORE_UNEXPECTED_EOF),
411 SSL_FLAG_TBL("LegacyECPointFormats", SSL_OP_LEGACY_EC_POINT_FORMATS),
412 };
413 if (value == NULL)
414 return -3;
415 cctx->tbl = ssl_option_list;
416 cctx->ntbl = OSSL_NELEM(ssl_option_list);
417 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
418 }
419
cmd_VerifyMode(SSL_CONF_CTX * cctx,const char * value)420 static int cmd_VerifyMode(SSL_CONF_CTX *cctx, const char *value)
421 {
422 static const ssl_flag_tbl ssl_vfy_list[] = {
423 SSL_FLAG_VFY_CLI("Peer", SSL_VERIFY_PEER),
424 SSL_FLAG_VFY_SRV("Request", SSL_VERIFY_PEER),
425 SSL_FLAG_VFY_SRV("Require",
426 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT),
427 SSL_FLAG_VFY_SRV("Once", SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE),
428 SSL_FLAG_VFY_SRV("RequestPostHandshake",
429 SSL_VERIFY_PEER | SSL_VERIFY_POST_HANDSHAKE),
430 SSL_FLAG_VFY_SRV("RequirePostHandshake",
431 SSL_VERIFY_PEER | SSL_VERIFY_POST_HANDSHAKE |
432 SSL_VERIFY_FAIL_IF_NO_PEER_CERT),
433 };
434 if (value == NULL)
435 return -3;
436 cctx->tbl = ssl_vfy_list;
437 cctx->ntbl = OSSL_NELEM(ssl_vfy_list);
438 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
439 }
440
cmd_Certificate(SSL_CONF_CTX * cctx,const char * value)441 static int cmd_Certificate(SSL_CONF_CTX *cctx, const char *value)
442 {
443 int rv = 1;
444 CERT *c = NULL;
445 if (cctx->ctx != NULL) {
446 rv = SSL_CTX_use_certificate_chain_file(cctx->ctx, value);
447 c = cctx->ctx->cert;
448 }
449 if (cctx->ssl != NULL) {
450 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(cctx->ssl);
451
452 if (sc != NULL) {
453 rv = SSL_use_certificate_chain_file(cctx->ssl, value);
454 c = sc->cert;
455 } else {
456 rv = 0;
457 }
458 }
459 if (rv > 0 && c != NULL && cctx->flags & SSL_CONF_FLAG_REQUIRE_PRIVATE) {
460 size_t fileidx = c->key - c->pkeys;
461
462 if (fileidx >= cctx->num_cert_filename) {
463 rv = 0;
464 } else {
465 char **pfilename = &cctx->cert_filename[c->key - c->pkeys];
466
467 OPENSSL_free(*pfilename);
468 *pfilename = OPENSSL_strdup(value);
469 if (*pfilename == NULL)
470 rv = 0;
471 }
472 }
473
474 return rv > 0;
475 }
476
cmd_PrivateKey(SSL_CONF_CTX * cctx,const char * value)477 static int cmd_PrivateKey(SSL_CONF_CTX *cctx, const char *value)
478 {
479 int rv = 1;
480 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
481 return -2;
482 if (cctx->ctx)
483 rv = SSL_CTX_use_PrivateKey_file(cctx->ctx, value, SSL_FILETYPE_PEM);
484 if (cctx->ssl)
485 rv = SSL_use_PrivateKey_file(cctx->ssl, value, SSL_FILETYPE_PEM);
486 return rv > 0;
487 }
488
cmd_ServerInfoFile(SSL_CONF_CTX * cctx,const char * value)489 static int cmd_ServerInfoFile(SSL_CONF_CTX *cctx, const char *value)
490 {
491 int rv = 1;
492 if (cctx->ctx)
493 rv = SSL_CTX_use_serverinfo_file(cctx->ctx, value);
494 return rv > 0;
495 }
496
do_store(SSL_CONF_CTX * cctx,const char * CAfile,const char * CApath,const char * CAstore,int verify_store)497 static int do_store(SSL_CONF_CTX *cctx,
498 const char *CAfile, const char *CApath, const char *CAstore,
499 int verify_store)
500 {
501 CERT *cert;
502 X509_STORE **st;
503 SSL_CTX *ctx;
504 OSSL_LIB_CTX *libctx = NULL;
505 const char *propq = NULL;
506
507 if (cctx->ctx != NULL) {
508 cert = cctx->ctx->cert;
509 ctx = cctx->ctx;
510 } else if (cctx->ssl != NULL) {
511 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(cctx->ssl);
512
513 if (sc == NULL)
514 return 0;
515
516 cert = sc->cert;
517 ctx = cctx->ssl->ctx;
518 } else {
519 return 1;
520 }
521 if (ctx != NULL) {
522 libctx = ctx->libctx;
523 propq = ctx->propq;
524 }
525 st = verify_store ? &cert->verify_store : &cert->chain_store;
526 if (*st == NULL) {
527 *st = X509_STORE_new();
528 if (*st == NULL)
529 return 0;
530 }
531
532 if (CAfile != NULL && !X509_STORE_load_file_ex(*st, CAfile, libctx, propq))
533 return 0;
534 if (CApath != NULL && !X509_STORE_load_path(*st, CApath))
535 return 0;
536 if (CAstore != NULL && !X509_STORE_load_store_ex(*st, CAstore, libctx,
537 propq))
538 return 0;
539 return 1;
540 }
541
cmd_ChainCAPath(SSL_CONF_CTX * cctx,const char * value)542 static int cmd_ChainCAPath(SSL_CONF_CTX *cctx, const char *value)
543 {
544 return do_store(cctx, NULL, value, NULL, 0);
545 }
546
cmd_ChainCAFile(SSL_CONF_CTX * cctx,const char * value)547 static int cmd_ChainCAFile(SSL_CONF_CTX *cctx, const char *value)
548 {
549 return do_store(cctx, value, NULL, NULL, 0);
550 }
551
cmd_ChainCAStore(SSL_CONF_CTX * cctx,const char * value)552 static int cmd_ChainCAStore(SSL_CONF_CTX *cctx, const char *value)
553 {
554 return do_store(cctx, NULL, NULL, value, 0);
555 }
556
cmd_VerifyCAPath(SSL_CONF_CTX * cctx,const char * value)557 static int cmd_VerifyCAPath(SSL_CONF_CTX *cctx, const char *value)
558 {
559 return do_store(cctx, NULL, value, NULL, 1);
560 }
561
cmd_VerifyCAFile(SSL_CONF_CTX * cctx,const char * value)562 static int cmd_VerifyCAFile(SSL_CONF_CTX *cctx, const char *value)
563 {
564 return do_store(cctx, value, NULL, NULL, 1);
565 }
566
cmd_VerifyCAStore(SSL_CONF_CTX * cctx,const char * value)567 static int cmd_VerifyCAStore(SSL_CONF_CTX *cctx, const char *value)
568 {
569 return do_store(cctx, NULL, NULL, value, 1);
570 }
571
cmd_RequestCAFile(SSL_CONF_CTX * cctx,const char * value)572 static int cmd_RequestCAFile(SSL_CONF_CTX *cctx, const char *value)
573 {
574 if (cctx->canames == NULL)
575 cctx->canames = sk_X509_NAME_new_null();
576 if (cctx->canames == NULL)
577 return 0;
578 return SSL_add_file_cert_subjects_to_stack(cctx->canames, value);
579 }
580
cmd_ClientCAFile(SSL_CONF_CTX * cctx,const char * value)581 static int cmd_ClientCAFile(SSL_CONF_CTX *cctx, const char *value)
582 {
583 return cmd_RequestCAFile(cctx, value);
584 }
585
cmd_RequestCAPath(SSL_CONF_CTX * cctx,const char * value)586 static int cmd_RequestCAPath(SSL_CONF_CTX *cctx, const char *value)
587 {
588 if (cctx->canames == NULL)
589 cctx->canames = sk_X509_NAME_new_null();
590 if (cctx->canames == NULL)
591 return 0;
592 return SSL_add_dir_cert_subjects_to_stack(cctx->canames, value);
593 }
594
cmd_ClientCAPath(SSL_CONF_CTX * cctx,const char * value)595 static int cmd_ClientCAPath(SSL_CONF_CTX *cctx, const char *value)
596 {
597 return cmd_RequestCAPath(cctx, value);
598 }
599
cmd_RequestCAStore(SSL_CONF_CTX * cctx,const char * value)600 static int cmd_RequestCAStore(SSL_CONF_CTX *cctx, const char *value)
601 {
602 if (cctx->canames == NULL)
603 cctx->canames = sk_X509_NAME_new_null();
604 if (cctx->canames == NULL)
605 return 0;
606 return SSL_add_store_cert_subjects_to_stack(cctx->canames, value);
607 }
608
cmd_ClientCAStore(SSL_CONF_CTX * cctx,const char * value)609 static int cmd_ClientCAStore(SSL_CONF_CTX *cctx, const char *value)
610 {
611 return cmd_RequestCAStore(cctx, value);
612 }
613
cmd_DHParameters(SSL_CONF_CTX * cctx,const char * value)614 static int cmd_DHParameters(SSL_CONF_CTX *cctx, const char *value)
615 {
616 int rv = 0;
617 EVP_PKEY *dhpkey = NULL;
618 BIO *in = NULL;
619 SSL_CTX *sslctx = (cctx->ssl != NULL) ? cctx->ssl->ctx : cctx->ctx;
620 OSSL_DECODER_CTX *decoderctx = NULL;
621
622 if (cctx->ctx != NULL || cctx->ssl != NULL) {
623 in = BIO_new(BIO_s_file());
624 if (in == NULL)
625 goto end;
626 if (BIO_read_filename(in, value) <= 0)
627 goto end;
628
629 decoderctx
630 = OSSL_DECODER_CTX_new_for_pkey(&dhpkey, "PEM", NULL, "DH",
631 OSSL_KEYMGMT_SELECT_DOMAIN_PARAMETERS,
632 sslctx->libctx, sslctx->propq);
633 if (decoderctx == NULL)
634 goto end;
635 ERR_set_mark();
636 while (!OSSL_DECODER_from_bio(decoderctx, in)
637 && dhpkey == NULL
638 && !BIO_eof(in));
639 OSSL_DECODER_CTX_free(decoderctx);
640
641 if (dhpkey == NULL) {
642 ERR_clear_last_mark();
643 goto end;
644 }
645 ERR_pop_to_mark();
646 } else {
647 return 1;
648 }
649
650 if (cctx->ctx != NULL) {
651 if ((rv = SSL_CTX_set0_tmp_dh_pkey(cctx->ctx, dhpkey)) > 0)
652 dhpkey = NULL;
653 }
654 if (cctx->ssl != NULL) {
655 if ((rv = SSL_set0_tmp_dh_pkey(cctx->ssl, dhpkey)) > 0)
656 dhpkey = NULL;
657 }
658 end:
659 EVP_PKEY_free(dhpkey);
660 BIO_free(in);
661 return rv > 0;
662 }
663
664 /*
665 * |value| input is "<number[,number]>"
666 * where the first number is the padding block size for
667 * application data, and the optional second is the
668 * padding block size for handshake messages
669 */
cmd_RecordPadding(SSL_CONF_CTX * cctx,const char * value)670 static int cmd_RecordPadding(SSL_CONF_CTX *cctx, const char *value)
671 {
672 int rv = 0;
673 unsigned long block_padding = 0, hs_padding = 0;
674 char *commap = NULL, *copy = NULL;
675 char *endptr = NULL;
676
677 copy = OPENSSL_strdup(value);
678 if (copy == NULL)
679 goto out;
680 commap = strstr(copy, ",");
681 if (commap != NULL) {
682 *commap = '\0';
683 if (*(commap + 1) == '\0')
684 goto out;
685 if (!OPENSSL_strtoul(commap + 1, &endptr, 0, &hs_padding))
686 goto out;
687 }
688 if (!OPENSSL_strtoul(copy, &endptr, 0, &block_padding))
689 goto out;
690 if (commap == NULL)
691 hs_padding = block_padding;
692
693 /*
694 * All we care about are non-negative values,
695 * the setters check the range
696 */
697 if (cctx->ctx)
698 rv = SSL_CTX_set_block_padding_ex(cctx->ctx, (size_t)block_padding,
699 (size_t)hs_padding);
700 if (cctx->ssl)
701 rv = SSL_set_block_padding_ex(cctx->ssl, (size_t)block_padding,
702 (size_t)hs_padding);
703 out:
704 OPENSSL_free(copy);
705 return rv;
706 }
707
708
cmd_NumTickets(SSL_CONF_CTX * cctx,const char * value)709 static int cmd_NumTickets(SSL_CONF_CTX *cctx, const char *value)
710 {
711 int rv = 0;
712 int num_tickets = atoi(value);
713
714 if (num_tickets >= 0) {
715 if (cctx->ctx)
716 rv = SSL_CTX_set_num_tickets(cctx->ctx, num_tickets);
717 if (cctx->ssl)
718 rv = SSL_set_num_tickets(cctx->ssl, num_tickets);
719 }
720 return rv;
721 }
722
723 typedef struct {
724 int (*cmd) (SSL_CONF_CTX *cctx, const char *value);
725 const char *str_file;
726 const char *str_cmdline;
727 unsigned short flags;
728 unsigned short value_type;
729 } ssl_conf_cmd_tbl;
730
731 /* Table of supported parameters */
732
733 #define SSL_CONF_CMD(name, cmdopt, flags, type) \
734 {cmd_##name, #name, cmdopt, flags, type}
735
736 #define SSL_CONF_CMD_STRING(name, cmdopt, flags) \
737 SSL_CONF_CMD(name, cmdopt, flags, SSL_CONF_TYPE_STRING)
738
739 #define SSL_CONF_CMD_SWITCH(name, flags) \
740 {0, NULL, name, flags, SSL_CONF_TYPE_NONE}
741
742 /* See apps/include/opt.h if you change this table. */
743 /* The SSL_CONF_CMD_SWITCH should be the same order as ssl_cmd_switches */
744 static const ssl_conf_cmd_tbl ssl_conf_cmds[] = {
745 SSL_CONF_CMD_SWITCH("no_ssl3", 0),
746 SSL_CONF_CMD_SWITCH("no_tls1", 0),
747 SSL_CONF_CMD_SWITCH("no_tls1_1", 0),
748 SSL_CONF_CMD_SWITCH("no_tls1_2", 0),
749 SSL_CONF_CMD_SWITCH("no_tls1_3", 0),
750 SSL_CONF_CMD_SWITCH("bugs", 0),
751 SSL_CONF_CMD_SWITCH("no_comp", 0),
752 SSL_CONF_CMD_SWITCH("comp", 0),
753 SSL_CONF_CMD_SWITCH("no_tx_cert_comp", 0),
754 SSL_CONF_CMD_SWITCH("tx_cert_comp", 0),
755 SSL_CONF_CMD_SWITCH("no_rx_cert_comp", 0),
756 SSL_CONF_CMD_SWITCH("rx_cert_comp", 0),
757 SSL_CONF_CMD_SWITCH("ecdh_single", SSL_CONF_FLAG_SERVER),
758 SSL_CONF_CMD_SWITCH("no_ticket", 0),
759 SSL_CONF_CMD_SWITCH("serverpref", SSL_CONF_FLAG_SERVER),
760 SSL_CONF_CMD_SWITCH("legacy_renegotiation", 0),
761 SSL_CONF_CMD_SWITCH("client_renegotiation", SSL_CONF_FLAG_SERVER),
762 SSL_CONF_CMD_SWITCH("legacy_server_connect", SSL_CONF_FLAG_CLIENT),
763 SSL_CONF_CMD_SWITCH("no_renegotiation", 0),
764 SSL_CONF_CMD_SWITCH("no_resumption_on_reneg", SSL_CONF_FLAG_SERVER),
765 SSL_CONF_CMD_SWITCH("no_legacy_server_connect", SSL_CONF_FLAG_CLIENT),
766 SSL_CONF_CMD_SWITCH("allow_no_dhe_kex", 0),
767 SSL_CONF_CMD_SWITCH("prefer_no_dhe_kex", 0),
768 SSL_CONF_CMD_SWITCH("prioritize_chacha", SSL_CONF_FLAG_SERVER),
769 SSL_CONF_CMD_SWITCH("strict", 0),
770 SSL_CONF_CMD_SWITCH("no_middlebox", 0),
771 SSL_CONF_CMD_SWITCH("anti_replay", SSL_CONF_FLAG_SERVER),
772 SSL_CONF_CMD_SWITCH("no_anti_replay", SSL_CONF_FLAG_SERVER),
773 SSL_CONF_CMD_SWITCH("no_etm", 0),
774 SSL_CONF_CMD_SWITCH("no_ems", 0),
775 SSL_CONF_CMD_SWITCH("legacy_ec_point_formats", 0),
776 SSL_CONF_CMD_STRING(SignatureAlgorithms, "sigalgs", 0),
777 SSL_CONF_CMD_STRING(ClientSignatureAlgorithms, "client_sigalgs", 0),
778 SSL_CONF_CMD_STRING(Curves, "curves", 0),
779 SSL_CONF_CMD_STRING(Groups, "groups", 0),
780 SSL_CONF_CMD_STRING(ECDHParameters, "named_curve", SSL_CONF_FLAG_SERVER),
781 SSL_CONF_CMD_STRING(CipherString, "cipher", 0),
782 SSL_CONF_CMD_STRING(Ciphersuites, "ciphersuites", 0),
783 SSL_CONF_CMD_STRING(Protocol, NULL, 0),
784 SSL_CONF_CMD_STRING(MinProtocol, "min_protocol", 0),
785 SSL_CONF_CMD_STRING(MaxProtocol, "max_protocol", 0),
786 SSL_CONF_CMD_STRING(Options, NULL, 0),
787 SSL_CONF_CMD_STRING(VerifyMode, NULL, 0),
788 SSL_CONF_CMD(Certificate, "cert", SSL_CONF_FLAG_CERTIFICATE,
789 SSL_CONF_TYPE_FILE),
790 SSL_CONF_CMD(PrivateKey, "key", SSL_CONF_FLAG_CERTIFICATE,
791 SSL_CONF_TYPE_FILE),
792 SSL_CONF_CMD(ServerInfoFile, NULL,
793 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
794 SSL_CONF_TYPE_FILE),
795 SSL_CONF_CMD(ChainCAPath, "chainCApath", SSL_CONF_FLAG_CERTIFICATE,
796 SSL_CONF_TYPE_DIR),
797 SSL_CONF_CMD(ChainCAFile, "chainCAfile", SSL_CONF_FLAG_CERTIFICATE,
798 SSL_CONF_TYPE_FILE),
799 SSL_CONF_CMD(ChainCAStore, "chainCAstore", SSL_CONF_FLAG_CERTIFICATE,
800 SSL_CONF_TYPE_STORE),
801 SSL_CONF_CMD(VerifyCAPath, "verifyCApath", SSL_CONF_FLAG_CERTIFICATE,
802 SSL_CONF_TYPE_DIR),
803 SSL_CONF_CMD(VerifyCAFile, "verifyCAfile", SSL_CONF_FLAG_CERTIFICATE,
804 SSL_CONF_TYPE_FILE),
805 SSL_CONF_CMD(VerifyCAStore, "verifyCAstore", SSL_CONF_FLAG_CERTIFICATE,
806 SSL_CONF_TYPE_STORE),
807 SSL_CONF_CMD(RequestCAFile, "requestCAFile", SSL_CONF_FLAG_CERTIFICATE,
808 SSL_CONF_TYPE_FILE),
809 SSL_CONF_CMD(ClientCAFile, NULL,
810 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
811 SSL_CONF_TYPE_FILE),
812 SSL_CONF_CMD(RequestCAPath, NULL, SSL_CONF_FLAG_CERTIFICATE,
813 SSL_CONF_TYPE_DIR),
814 SSL_CONF_CMD(ClientCAPath, NULL,
815 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
816 SSL_CONF_TYPE_DIR),
817 SSL_CONF_CMD(RequestCAStore, "requestCAStore", SSL_CONF_FLAG_CERTIFICATE,
818 SSL_CONF_TYPE_STORE),
819 SSL_CONF_CMD(ClientCAStore, NULL,
820 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
821 SSL_CONF_TYPE_STORE),
822 SSL_CONF_CMD(DHParameters, "dhparam",
823 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
824 SSL_CONF_TYPE_FILE),
825 SSL_CONF_CMD_STRING(RecordPadding, "record_padding", 0),
826 SSL_CONF_CMD_STRING(NumTickets, "num_tickets", SSL_CONF_FLAG_SERVER),
827 };
828
829 /* Supported switches: must match order of switches in ssl_conf_cmds */
830 static const ssl_switch_tbl ssl_cmd_switches[] = {
831 {SSL_OP_NO_SSLv3, 0}, /* no_ssl3 */
832 {SSL_OP_NO_TLSv1, 0}, /* no_tls1 */
833 {SSL_OP_NO_TLSv1_1, 0}, /* no_tls1_1 */
834 {SSL_OP_NO_TLSv1_2, 0}, /* no_tls1_2 */
835 {SSL_OP_NO_TLSv1_3, 0}, /* no_tls1_3 */
836 {SSL_OP_ALL, 0}, /* bugs */
837 {SSL_OP_NO_COMPRESSION, 0}, /* no_comp */
838 {SSL_OP_NO_COMPRESSION, SSL_TFLAG_INV}, /* comp */
839 {SSL_OP_NO_TX_CERTIFICATE_COMPRESSION, 0}, /* no_tx_cert_comp */
840 {SSL_OP_NO_TX_CERTIFICATE_COMPRESSION, SSL_TFLAG_INV}, /* tx_cert_comp */
841 {SSL_OP_NO_RX_CERTIFICATE_COMPRESSION, 0}, /* no_rx_cert_comp */
842 {SSL_OP_NO_RX_CERTIFICATE_COMPRESSION, SSL_TFLAG_INV}, /* rx_cert_comp */
843 {SSL_OP_SINGLE_ECDH_USE, 0}, /* ecdh_single */
844 {SSL_OP_NO_TICKET, 0}, /* no_ticket */
845 {SSL_OP_SERVER_PREFERENCE, 0}, /* serverpref */
846 /* legacy_renegotiation */
847 {SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION, 0},
848 /* Allow client renegotiation */
849 {SSL_OP_ALLOW_CLIENT_RENEGOTIATION, 0},
850 /* legacy_server_connect */
851 {SSL_OP_LEGACY_SERVER_CONNECT, 0},
852 /* no_renegotiation */
853 {SSL_OP_NO_RENEGOTIATION, 0},
854 /* no_resumption_on_reneg */
855 {SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION, 0},
856 /* no_legacy_server_connect */
857 {SSL_OP_LEGACY_SERVER_CONNECT, SSL_TFLAG_INV},
858 /* allow_no_dhe_kex */
859 {SSL_OP_ALLOW_NO_DHE_KEX, 0},
860 /* prefer_no_dhe_kex */
861 {SSL_OP_PREFER_NO_DHE_KEX, 0},
862 /* chacha reprioritization */
863 {SSL_OP_PRIORITIZE_CHACHA, 0},
864 {SSL_CERT_FLAG_TLS_STRICT, SSL_TFLAG_CERT}, /* strict */
865 /* no_middlebox */
866 {SSL_OP_ENABLE_MIDDLEBOX_COMPAT, SSL_TFLAG_INV},
867 /* anti_replay */
868 {SSL_OP_NO_ANTI_REPLAY, SSL_TFLAG_INV},
869 /* no_anti_replay */
870 {SSL_OP_NO_ANTI_REPLAY, 0},
871 /* no Encrypt-then-Mac */
872 {SSL_OP_NO_ENCRYPT_THEN_MAC, 0},
873 /* no Extended master secret */
874 {SSL_OP_NO_EXTENDED_MASTER_SECRET, 0},
875 /* enable legacy EC point formats */
876 {SSL_OP_LEGACY_EC_POINT_FORMATS, 0}
877 };
878
ssl_conf_cmd_skip_prefix(SSL_CONF_CTX * cctx,const char ** pcmd)879 static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX *cctx, const char **pcmd)
880 {
881 if (pcmd == NULL || *pcmd == NULL)
882 return 0;
883 /* If a prefix is set, check and skip */
884 if (cctx->prefix) {
885 if (strlen(*pcmd) <= cctx->prefixlen)
886 return 0;
887 if (cctx->flags & SSL_CONF_FLAG_CMDLINE &&
888 strncmp(*pcmd, cctx->prefix, cctx->prefixlen))
889 return 0;
890 if (cctx->flags & SSL_CONF_FLAG_FILE &&
891 OPENSSL_strncasecmp(*pcmd, cctx->prefix, cctx->prefixlen))
892 return 0;
893 *pcmd += cctx->prefixlen;
894 } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
895 if (**pcmd != '-' || !(*pcmd)[1])
896 return 0;
897 *pcmd += 1;
898 }
899 return 1;
900 }
901
902 /* Determine if a command is allowed according to cctx flags */
ssl_conf_cmd_allowed(SSL_CONF_CTX * cctx,const ssl_conf_cmd_tbl * t)903 static int ssl_conf_cmd_allowed(SSL_CONF_CTX *cctx, const ssl_conf_cmd_tbl *t)
904 {
905 unsigned int tfl = t->flags;
906 unsigned int cfl = cctx->flags;
907 if ((tfl & SSL_CONF_FLAG_SERVER) && !(cfl & SSL_CONF_FLAG_SERVER))
908 return 0;
909 if ((tfl & SSL_CONF_FLAG_CLIENT) && !(cfl & SSL_CONF_FLAG_CLIENT))
910 return 0;
911 if ((tfl & SSL_CONF_FLAG_CERTIFICATE)
912 && !(cfl & SSL_CONF_FLAG_CERTIFICATE))
913 return 0;
914 return 1;
915 }
916
ssl_conf_cmd_lookup(SSL_CONF_CTX * cctx,const char * cmd)917 static const ssl_conf_cmd_tbl *ssl_conf_cmd_lookup(SSL_CONF_CTX *cctx,
918 const char *cmd)
919 {
920 const ssl_conf_cmd_tbl *t;
921 size_t i;
922 if (cmd == NULL)
923 return NULL;
924
925 /* Look for matching parameter name in table */
926 for (i = 0, t = ssl_conf_cmds; i < OSSL_NELEM(ssl_conf_cmds); i++, t++) {
927 if (ssl_conf_cmd_allowed(cctx, t)) {
928 if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
929 if (t->str_cmdline && strcmp(t->str_cmdline, cmd) == 0)
930 return t;
931 }
932 if (cctx->flags & SSL_CONF_FLAG_FILE) {
933 if (t->str_file && OPENSSL_strcasecmp(t->str_file, cmd) == 0)
934 return t;
935 }
936 }
937 }
938 return NULL;
939 }
940
ctrl_switch_option(SSL_CONF_CTX * cctx,const ssl_conf_cmd_tbl * cmd)941 static int ctrl_switch_option(SSL_CONF_CTX *cctx, const ssl_conf_cmd_tbl *cmd)
942 {
943 /* Find index of command in table */
944 size_t idx = cmd - ssl_conf_cmds;
945 const ssl_switch_tbl *scmd;
946
947 /* Sanity check index */
948 if (idx >= OSSL_NELEM(ssl_cmd_switches)) {
949 ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR);
950 return 0;
951 }
952 /* Obtain switches entry with same index */
953 scmd = ssl_cmd_switches + idx;
954 ssl_set_option(cctx, scmd->name_flags, scmd->option_value, 1);
955 return 1;
956 }
957
SSL_CONF_cmd(SSL_CONF_CTX * cctx,const char * cmd,const char * value)958 int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value)
959 {
960 const ssl_conf_cmd_tbl *runcmd;
961 if (cmd == NULL) {
962 ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_NULL_CMD_NAME);
963 return 0;
964 }
965
966 if (!ssl_conf_cmd_skip_prefix(cctx, &cmd))
967 goto unknown_cmd;
968
969 runcmd = ssl_conf_cmd_lookup(cctx, cmd);
970
971 if (runcmd) {
972 int rv = -3;
973
974 if (runcmd->value_type == SSL_CONF_TYPE_NONE) {
975 return ctrl_switch_option(cctx, runcmd);
976 }
977 if (value == NULL)
978 goto bad_value;
979 rv = runcmd->cmd(cctx, value);
980 if (rv > 0)
981 return 2;
982 if (rv != -2)
983 rv = 0;
984
985 bad_value:
986 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS)
987 ERR_raise_data(ERR_LIB_SSL, SSL_R_BAD_VALUE,
988 "cmd=%s, value=%s", cmd,
989 value != NULL ? value : "<EMPTY>");
990 return rv;
991 }
992
993 unknown_cmd:
994 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS)
995 ERR_raise_data(ERR_LIB_SSL, SSL_R_UNKNOWN_CMD_NAME, "cmd=%s", cmd);
996
997 return -2;
998 }
999
SSL_CONF_cmd_argv(SSL_CONF_CTX * cctx,int * pargc,char *** pargv)1000 int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv)
1001 {
1002 int rv;
1003 const char *arg = NULL, *argn;
1004
1005 if (pargc != NULL && *pargc == 0)
1006 return 0;
1007 if (pargc == NULL || *pargc > 0)
1008 arg = **pargv;
1009 if (arg == NULL)
1010 return 0;
1011 if (pargc == NULL || *pargc > 1)
1012 argn = (*pargv)[1];
1013 else
1014 argn = NULL;
1015 cctx->flags &= ~SSL_CONF_FLAG_FILE;
1016 cctx->flags |= SSL_CONF_FLAG_CMDLINE;
1017 rv = SSL_CONF_cmd(cctx, arg, argn);
1018 if (rv > 0) {
1019 /* Success: update pargc, pargv */
1020 (*pargv) += rv;
1021 if (pargc)
1022 (*pargc) -= rv;
1023 return rv;
1024 }
1025 /* Unknown switch: indicate no arguments processed */
1026 if (rv == -2)
1027 return 0;
1028 /* Some error occurred processing command, return fatal error */
1029 if (rv == 0)
1030 return -1;
1031 return rv;
1032 }
1033
SSL_CONF_cmd_value_type(SSL_CONF_CTX * cctx,const char * cmd)1034 int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd)
1035 {
1036 if (ssl_conf_cmd_skip_prefix(cctx, &cmd)) {
1037 const ssl_conf_cmd_tbl *runcmd;
1038 runcmd = ssl_conf_cmd_lookup(cctx, cmd);
1039 if (runcmd)
1040 return runcmd->value_type;
1041 }
1042 return SSL_CONF_TYPE_UNKNOWN;
1043 }
1044
SSL_CONF_CTX_new(void)1045 SSL_CONF_CTX *SSL_CONF_CTX_new(void)
1046 {
1047 SSL_CONF_CTX *ret = OPENSSL_zalloc(sizeof(*ret));
1048
1049 return ret;
1050 }
1051
SSL_CONF_CTX_finish(SSL_CONF_CTX * cctx)1052 int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx)
1053 {
1054 /* See if any certificates are missing private keys */
1055 size_t i;
1056 CERT *c = NULL;
1057
1058 if (cctx->ctx != NULL) {
1059 c = cctx->ctx->cert;
1060 } else if (cctx->ssl != NULL) {
1061 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(cctx->ssl);
1062
1063 if (sc != NULL)
1064 c = sc->cert;
1065 }
1066 if (c != NULL && cctx->flags & SSL_CONF_FLAG_REQUIRE_PRIVATE) {
1067 for (i = 0; i < cctx->num_cert_filename; i++) {
1068 const char *p = cctx->cert_filename[i];
1069
1070 /*
1071 * If missing private key try to load one from certificate file
1072 */
1073 if (p != NULL && c->pkeys[i].privatekey == NULL) {
1074 if (!cmd_PrivateKey(cctx, p))
1075 return 0;
1076 }
1077 }
1078 }
1079 if (cctx->canames) {
1080 if (cctx->ssl)
1081 SSL_set0_CA_list(cctx->ssl, cctx->canames);
1082 else if (cctx->ctx)
1083 SSL_CTX_set0_CA_list(cctx->ctx, cctx->canames);
1084 else
1085 sk_X509_NAME_pop_free(cctx->canames, X509_NAME_free);
1086 cctx->canames = NULL;
1087 }
1088 return 1;
1089 }
1090
free_cert_filename(SSL_CONF_CTX * cctx)1091 static void free_cert_filename(SSL_CONF_CTX *cctx)
1092 {
1093 size_t i;
1094
1095 for (i = 0; i < cctx->num_cert_filename; i++)
1096 OPENSSL_free(cctx->cert_filename[i]);
1097 OPENSSL_free(cctx->cert_filename);
1098 cctx->cert_filename = NULL;
1099 cctx->num_cert_filename = 0;
1100 }
1101
SSL_CONF_CTX_free(SSL_CONF_CTX * cctx)1102 void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx)
1103 {
1104 if (cctx) {
1105 free_cert_filename(cctx);
1106 OPENSSL_free(cctx->prefix);
1107 sk_X509_NAME_pop_free(cctx->canames, X509_NAME_free);
1108 OPENSSL_free(cctx);
1109 }
1110 }
1111
SSL_CONF_CTX_set_flags(SSL_CONF_CTX * cctx,unsigned int flags)1112 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags)
1113 {
1114 cctx->flags |= flags;
1115 return cctx->flags;
1116 }
1117
SSL_CONF_CTX_clear_flags(SSL_CONF_CTX * cctx,unsigned int flags)1118 unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags)
1119 {
1120 cctx->flags &= ~flags;
1121 return cctx->flags;
1122 }
1123
SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX * cctx,const char * pre)1124 int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre)
1125 {
1126 char *tmp = NULL;
1127 if (pre) {
1128 tmp = OPENSSL_strdup(pre);
1129 if (tmp == NULL)
1130 return 0;
1131 }
1132 OPENSSL_free(cctx->prefix);
1133 cctx->prefix = tmp;
1134 if (tmp)
1135 cctx->prefixlen = strlen(tmp);
1136 else
1137 cctx->prefixlen = 0;
1138 return 1;
1139 }
1140
SSL_CONF_CTX_set_ssl(SSL_CONF_CTX * cctx,SSL * ssl)1141 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl)
1142 {
1143 cctx->ssl = ssl;
1144 cctx->ctx = NULL;
1145 free_cert_filename(cctx);
1146 if (ssl != NULL) {
1147 SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(ssl);
1148
1149 if (sc == NULL)
1150 return;
1151 cctx->poptions = &sc->options;
1152 cctx->min_version = &sc->min_proto_version;
1153 cctx->max_version = &sc->max_proto_version;
1154 cctx->pcert_flags = &sc->cert->cert_flags;
1155 cctx->pvfy_flags = &sc->verify_mode;
1156 cctx->cert_filename = OPENSSL_zalloc(sc->ssl_pkey_num
1157 * sizeof(*cctx->cert_filename));
1158 if (cctx->cert_filename != NULL)
1159 cctx->num_cert_filename = sc->ssl_pkey_num;
1160 } else {
1161 cctx->poptions = NULL;
1162 cctx->min_version = NULL;
1163 cctx->max_version = NULL;
1164 cctx->pcert_flags = NULL;
1165 cctx->pvfy_flags = NULL;
1166 }
1167 }
1168
SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX * cctx,SSL_CTX * ctx)1169 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx)
1170 {
1171 cctx->ctx = ctx;
1172 cctx->ssl = NULL;
1173 free_cert_filename(cctx);
1174 if (ctx) {
1175 cctx->poptions = &ctx->options;
1176 cctx->min_version = &ctx->min_proto_version;
1177 cctx->max_version = &ctx->max_proto_version;
1178 cctx->pcert_flags = &ctx->cert->cert_flags;
1179 cctx->pvfy_flags = &ctx->verify_mode;
1180 cctx->cert_filename = OPENSSL_zalloc((SSL_PKEY_NUM + ctx->sigalg_list_len)
1181 * sizeof(*cctx->cert_filename));
1182 if (cctx->cert_filename != NULL)
1183 cctx->num_cert_filename = SSL_PKEY_NUM + ctx->sigalg_list_len;
1184 } else {
1185 cctx->poptions = NULL;
1186 cctx->min_version = NULL;
1187 cctx->max_version = NULL;
1188 cctx->pcert_flags = NULL;
1189 cctx->pvfy_flags = NULL;
1190 }
1191 }
1192