2 * Copyright 2012-2020 The OpenSSL Project Authors. All Rights Reserved.
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
11 #include "ssl_local.h"
12 #include <openssl/conf.h>
13 #include <openssl/objects.h>
14 #include <openssl/dh.h>
15 #include "internal/nelem.h"
17 DEFINE_STACK_OF(X509_NAME
)
20 * structure holding name tables. This is used for permitted elements in lists
27 unsigned int name_flags
;
28 unsigned long option_value
;
31 /* Switch table: use for single command line switches like no_tls2 */
33 unsigned long option_value
;
34 unsigned int name_flags
;
37 /* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
38 #define SSL_TFLAG_INV 0x1
39 /* Mask for type of flag referred to */
40 #define SSL_TFLAG_TYPE_MASK 0xf00
41 /* Flag is for options */
42 #define SSL_TFLAG_OPTION 0x000
43 /* Flag is for cert_flags */
44 #define SSL_TFLAG_CERT 0x100
45 /* Flag is for verify mode */
46 #define SSL_TFLAG_VFY 0x200
47 /* Option can only be used for clients */
48 #define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
49 /* Option can only be used for servers */
50 #define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
51 #define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
53 #define SSL_FLAG_TBL(str, flag) \
54 {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
55 #define SSL_FLAG_TBL_SRV(str, flag) \
56 {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
57 #define SSL_FLAG_TBL_CLI(str, flag) \
58 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
59 #define SSL_FLAG_TBL_INV(str, flag) \
60 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
61 #define SSL_FLAG_TBL_SRV_INV(str, flag) \
62 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
63 #define SSL_FLAG_TBL_CERT(str, flag) \
64 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
66 #define SSL_FLAG_VFY_CLI(str, flag) \
67 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_CLIENT, flag}
68 #define SSL_FLAG_VFY_SRV(str, flag) \
69 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_SERVER, flag}
72 * Opaque structure containing SSL configuration context.
75 struct ssl_conf_ctx_st
{
77 * Various flags indicating (among other things) which options we will
81 /* Prefix and length of commands */
84 /* SSL_CTX or SSL structure to perform operations on */
87 /* Pointer to SSL or SSL_CTX options field or NULL if none */
89 /* Certificate filenames for each type */
90 char *cert_filename
[SSL_PKEY_NUM
];
91 /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
92 uint32_t *pcert_flags
;
93 /* Pointer to SSL or SSL_CTX verify_mode or NULL if none */
95 /* Pointer to SSL or SSL_CTX min_version field or NULL if none */
97 /* Pointer to SSL or SSL_CTX max_version field or NULL if none */
99 /* Current flag table being worked on */
100 const ssl_flag_tbl
*tbl
;
103 /* Client CA names */
104 STACK_OF(X509_NAME
) *canames
;
107 static void ssl_set_option(SSL_CONF_CTX
*cctx
, unsigned int name_flags
,
108 unsigned long option_value
, int onoff
)
111 if (cctx
->poptions
== NULL
)
113 if (name_flags
& SSL_TFLAG_INV
)
115 switch (name_flags
& SSL_TFLAG_TYPE_MASK
) {
118 pflags
= cctx
->pcert_flags
;
122 pflags
= cctx
->pvfy_flags
;
125 case SSL_TFLAG_OPTION
:
126 pflags
= cctx
->poptions
;
134 *pflags
|= option_value
;
136 *pflags
&= ~option_value
;
139 static int ssl_match_option(SSL_CONF_CTX
*cctx
, const ssl_flag_tbl
*tbl
,
140 const char *name
, int namelen
, int onoff
)
142 /* If name not relevant for context skip */
143 if (!(cctx
->flags
& tbl
->name_flags
& SSL_TFLAG_BOTH
))
146 if (strcmp(tbl
->name
, name
))
148 } else if (tbl
->namelen
!= namelen
|| strncasecmp(tbl
->name
, name
, namelen
))
150 ssl_set_option(cctx
, tbl
->name_flags
, tbl
->option_value
, onoff
);
154 static int ssl_set_option_list(const char *elem
, int len
, void *usr
)
156 SSL_CONF_CTX
*cctx
= usr
;
158 const ssl_flag_tbl
*tbl
;
161 * len == -1 indicates not being called in list context, just for single
162 * command line switches, so don't allow +, -.
171 } else if (*elem
== '-') {
177 for (i
= 0, tbl
= cctx
->tbl
; i
< cctx
->ntbl
; i
++, tbl
++) {
178 if (ssl_match_option(cctx
, tbl
, elem
, len
, onoff
))
184 /* Set supported signature algorithms */
185 static int cmd_SignatureAlgorithms(SSL_CONF_CTX
*cctx
, const char *value
)
189 rv
= SSL_set1_sigalgs_list(cctx
->ssl
, value
);
190 /* NB: ctx == NULL performs syntax checking only */
192 rv
= SSL_CTX_set1_sigalgs_list(cctx
->ctx
, value
);
196 /* Set supported client signature algorithms */
197 static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX
*cctx
, const char *value
)
201 rv
= SSL_set1_client_sigalgs_list(cctx
->ssl
, value
);
202 /* NB: ctx == NULL performs syntax checking only */
204 rv
= SSL_CTX_set1_client_sigalgs_list(cctx
->ctx
, value
);
208 static int cmd_Groups(SSL_CONF_CTX
*cctx
, const char *value
)
212 rv
= SSL_set1_groups_list(cctx
->ssl
, value
);
213 /* NB: ctx == NULL performs syntax checking only */
215 rv
= SSL_CTX_set1_groups_list(cctx
->ctx
, value
);
219 /* This is the old name for cmd_Groups - retained for backwards compatibility */
220 static int cmd_Curves(SSL_CONF_CTX
*cctx
, const char *value
)
222 return cmd_Groups(cctx
, value
);
225 #ifndef OPENSSL_NO_EC
226 /* ECDH temporary parameters */
227 static int cmd_ECDHParameters(SSL_CONF_CTX
*cctx
, const char *value
)
232 /* Ignore values supported by 1.0.2 for the automatic selection */
233 if ((cctx
->flags
& SSL_CONF_FLAG_FILE
)
234 && (strcasecmp(value
, "+automatic") == 0
235 || strcasecmp(value
, "automatic") == 0))
237 if ((cctx
->flags
& SSL_CONF_FLAG_CMDLINE
) &&
238 strcmp(value
, "auto") == 0)
241 nid
= EC_curve_nist2nid(value
);
242 if (nid
== NID_undef
)
243 nid
= OBJ_sn2nid(value
);
248 rv
= SSL_CTX_set1_groups(cctx
->ctx
, &nid
, 1);
250 rv
= SSL_set1_groups(cctx
->ssl
, &nid
, 1);
255 static int cmd_CipherString(SSL_CONF_CTX
*cctx
, const char *value
)
260 rv
= SSL_CTX_set_cipher_list(cctx
->ctx
, value
);
262 rv
= SSL_set_cipher_list(cctx
->ssl
, value
);
266 static int cmd_Ciphersuites(SSL_CONF_CTX
*cctx
, const char *value
)
271 rv
= SSL_CTX_set_ciphersuites(cctx
->ctx
, value
);
273 rv
= SSL_set_ciphersuites(cctx
->ssl
, value
);
277 static int cmd_Protocol(SSL_CONF_CTX
*cctx
, const char *value
)
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
)
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
);
296 * protocol_from_string - converts a protocol version string to a number
298 * Returns -1 on failure or the version on success
300 static int protocol_from_string(const char *value
)
302 struct protocol_versions
{
306 static const struct protocol_versions versions
[] = {
308 {"SSLv3", SSL3_VERSION
},
309 {"TLSv1", TLS1_VERSION
},
310 {"TLSv1.1", TLS1_1_VERSION
},
311 {"TLSv1.2", TLS1_2_VERSION
},
312 {"TLSv1.3", TLS1_3_VERSION
},
313 {"DTLSv1", DTLS1_VERSION
},
314 {"DTLSv1.2", DTLS1_2_VERSION
}
317 size_t n
= OSSL_NELEM(versions
);
319 for (i
= 0; i
< n
; i
++)
320 if (strcmp(versions
[i
].name
, value
) == 0)
321 return versions
[i
].version
;
325 static int min_max_proto(SSL_CONF_CTX
*cctx
, const char *value
, int *bound
)
330 if (cctx
->ctx
!= NULL
)
331 method_version
= cctx
->ctx
->method
->version
;
332 else if (cctx
->ssl
!= NULL
)
333 method_version
= cctx
->ssl
->ctx
->method
->version
;
336 if ((new_version
= protocol_from_string(value
)) < 0)
338 return ssl_set_version_bound(method_version
, new_version
, bound
);
342 * cmd_MinProtocol - Set min protocol version
343 * @cctx: config structure to save settings in
344 * @value: The min protocol version in string form
346 * Returns 1 on success and 0 on failure.
348 static int cmd_MinProtocol(SSL_CONF_CTX
*cctx
, const char *value
)
350 return min_max_proto(cctx
, value
, cctx
->min_version
);
354 * cmd_MaxProtocol - Set max protocol version
355 * @cctx: config structure to save settings in
356 * @value: The max protocol version in string form
358 * Returns 1 on success and 0 on failure.
360 static int cmd_MaxProtocol(SSL_CONF_CTX
*cctx
, const char *value
)
362 return min_max_proto(cctx
, value
, cctx
->max_version
);
365 static int cmd_Options(SSL_CONF_CTX
*cctx
, const char *value
)
367 static const ssl_flag_tbl ssl_option_list
[] = {
368 SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET
),
369 SSL_FLAG_TBL_INV("EmptyFragments",
370 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
),
371 SSL_FLAG_TBL("Bugs", SSL_OP_ALL
),
372 SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION
),
373 SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE
),
374 SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
375 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
),
376 SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE
),
377 SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE
),
378 SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
379 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
),
380 SSL_FLAG_TBL_INV("EncryptThenMac", SSL_OP_NO_ENCRYPT_THEN_MAC
),
381 SSL_FLAG_TBL("NoRenegotiation", SSL_OP_NO_RENEGOTIATION
),
382 SSL_FLAG_TBL("AllowNoDHEKEX", SSL_OP_ALLOW_NO_DHE_KEX
),
383 SSL_FLAG_TBL("PrioritizeChaCha", SSL_OP_PRIORITIZE_CHACHA
),
384 SSL_FLAG_TBL("MiddleboxCompat", SSL_OP_ENABLE_MIDDLEBOX_COMPAT
),
385 SSL_FLAG_TBL_INV("AntiReplay", SSL_OP_NO_ANTI_REPLAY
),
386 SSL_FLAG_TBL_INV("ExtendedMasterSecret", SSL_OP_NO_EXTENDED_MASTER_SECRET
),
387 SSL_FLAG_TBL_INV("CANames", SSL_OP_DISABLE_TLSEXT_CA_NAMES
)
391 cctx
->tbl
= ssl_option_list
;
392 cctx
->ntbl
= OSSL_NELEM(ssl_option_list
);
393 return CONF_parse_list(value
, ',', 1, ssl_set_option_list
, cctx
);
396 static int cmd_VerifyMode(SSL_CONF_CTX
*cctx
, const char *value
)
398 static const ssl_flag_tbl ssl_vfy_list
[] = {
399 SSL_FLAG_VFY_CLI("Peer", SSL_VERIFY_PEER
),
400 SSL_FLAG_VFY_SRV("Request", SSL_VERIFY_PEER
),
401 SSL_FLAG_VFY_SRV("Require",
402 SSL_VERIFY_PEER
| SSL_VERIFY_FAIL_IF_NO_PEER_CERT
),
403 SSL_FLAG_VFY_SRV("Once", SSL_VERIFY_PEER
| SSL_VERIFY_CLIENT_ONCE
),
404 SSL_FLAG_VFY_SRV("RequestPostHandshake",
405 SSL_VERIFY_PEER
| SSL_VERIFY_POST_HANDSHAKE
),
406 SSL_FLAG_VFY_SRV("RequirePostHandshake",
407 SSL_VERIFY_PEER
| SSL_VERIFY_POST_HANDSHAKE
|
408 SSL_VERIFY_FAIL_IF_NO_PEER_CERT
),
412 cctx
->tbl
= ssl_vfy_list
;
413 cctx
->ntbl
= OSSL_NELEM(ssl_vfy_list
);
414 return CONF_parse_list(value
, ',', 1, ssl_set_option_list
, cctx
);
417 static int cmd_Certificate(SSL_CONF_CTX
*cctx
, const char *value
)
422 rv
= SSL_CTX_use_certificate_chain_file(cctx
->ctx
, value
);
426 rv
= SSL_use_certificate_chain_file(cctx
->ssl
, value
);
429 if (rv
> 0 && c
&& cctx
->flags
& SSL_CONF_FLAG_REQUIRE_PRIVATE
) {
430 char **pfilename
= &cctx
->cert_filename
[c
->key
- c
->pkeys
];
431 OPENSSL_free(*pfilename
);
432 *pfilename
= OPENSSL_strdup(value
);
433 if (*pfilename
== NULL
)
440 static int cmd_PrivateKey(SSL_CONF_CTX
*cctx
, const char *value
)
443 if (!(cctx
->flags
& SSL_CONF_FLAG_CERTIFICATE
))
446 rv
= SSL_CTX_use_PrivateKey_file(cctx
->ctx
, value
, SSL_FILETYPE_PEM
);
448 rv
= SSL_use_PrivateKey_file(cctx
->ssl
, value
, SSL_FILETYPE_PEM
);
452 static int cmd_ServerInfoFile(SSL_CONF_CTX
*cctx
, const char *value
)
456 rv
= SSL_CTX_use_serverinfo_file(cctx
->ctx
, value
);
460 static int do_store(SSL_CONF_CTX
*cctx
,
461 const char *CAfile
, const char *CApath
, const char *CAstore
,
468 cert
= cctx
->ctx
->cert
;
470 cert
= cctx
->ssl
->cert
;
473 st
= verify_store
? &cert
->verify_store
: &cert
->chain_store
;
475 *st
= X509_STORE_new();
480 if (CAfile
!= NULL
&& !X509_STORE_load_file(*st
, CAfile
))
482 if (CApath
!= NULL
&& !X509_STORE_load_path(*st
, CApath
))
484 if (CAstore
!= NULL
&& !X509_STORE_load_store(*st
, CAstore
))
489 static int cmd_ChainCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
491 return do_store(cctx
, NULL
, value
, NULL
, 0);
494 static int cmd_ChainCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
496 return do_store(cctx
, value
, NULL
, NULL
, 0);
499 static int cmd_ChainCAStore(SSL_CONF_CTX
*cctx
, const char *value
)
501 return do_store(cctx
, NULL
, NULL
, value
, 0);
504 static int cmd_VerifyCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
506 return do_store(cctx
, NULL
, value
, NULL
, 1);
509 static int cmd_VerifyCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
511 return do_store(cctx
, value
, NULL
, NULL
, 1);
514 static int cmd_VerifyCAStore(SSL_CONF_CTX
*cctx
, const char *value
)
516 return do_store(cctx
, NULL
, NULL
, value
, 1);
519 static int cmd_RequestCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
521 if (cctx
->canames
== NULL
)
522 cctx
->canames
= sk_X509_NAME_new_null();
523 if (cctx
->canames
== NULL
)
525 return SSL_add_file_cert_subjects_to_stack(cctx
->canames
, value
);
528 static int cmd_ClientCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
530 return cmd_RequestCAFile(cctx
, value
);
533 static int cmd_RequestCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
535 if (cctx
->canames
== NULL
)
536 cctx
->canames
= sk_X509_NAME_new_null();
537 if (cctx
->canames
== NULL
)
539 return SSL_add_dir_cert_subjects_to_stack(cctx
->canames
, value
);
542 static int cmd_ClientCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
544 return cmd_RequestCAPath(cctx
, value
);
547 static int cmd_RequestCAStore(SSL_CONF_CTX
*cctx
, const char *value
)
549 if (cctx
->canames
== NULL
)
550 cctx
->canames
= sk_X509_NAME_new_null();
551 if (cctx
->canames
== NULL
)
553 return SSL_add_store_cert_subjects_to_stack(cctx
->canames
, value
);
556 static int cmd_ClientCAStore(SSL_CONF_CTX
*cctx
, const char *value
)
558 return cmd_RequestCAStore(cctx
, value
);
561 #ifndef OPENSSL_NO_DH
562 static int cmd_DHParameters(SSL_CONF_CTX
*cctx
, const char *value
)
567 if (cctx
->ctx
|| cctx
->ssl
) {
568 in
= BIO_new(BIO_s_file());
571 if (BIO_read_filename(in
, value
) <= 0)
573 dh
= PEM_read_bio_DHparams(in
, NULL
, NULL
, NULL
);
579 rv
= SSL_CTX_set_tmp_dh(cctx
->ctx
, dh
);
581 rv
= SSL_set_tmp_dh(cctx
->ssl
, dh
);
589 static int cmd_RecordPadding(SSL_CONF_CTX
*cctx
, const char *value
)
592 int block_size
= atoi(value
);
595 * All we care about is a non-negative value,
596 * the setters check the range
598 if (block_size
>= 0) {
600 rv
= SSL_CTX_set_block_padding(cctx
->ctx
, block_size
);
602 rv
= SSL_set_block_padding(cctx
->ssl
, block_size
);
608 static int cmd_NumTickets(SSL_CONF_CTX
*cctx
, const char *value
)
611 int num_tickets
= atoi(value
);
613 if (num_tickets
>= 0) {
615 rv
= SSL_CTX_set_num_tickets(cctx
->ctx
, num_tickets
);
617 rv
= SSL_set_num_tickets(cctx
->ssl
, num_tickets
);
623 int (*cmd
) (SSL_CONF_CTX
*cctx
, const char *value
);
624 const char *str_file
;
625 const char *str_cmdline
;
626 unsigned short flags
;
627 unsigned short value_type
;
630 /* Table of supported parameters */
632 #define SSL_CONF_CMD(name, cmdopt, flags, type) \
633 {cmd_##name, #name, cmdopt, flags, type}
635 #define SSL_CONF_CMD_STRING(name, cmdopt, flags) \
636 SSL_CONF_CMD(name, cmdopt, flags, SSL_CONF_TYPE_STRING)
638 #define SSL_CONF_CMD_SWITCH(name, flags) \
639 {0, NULL, name, flags, SSL_CONF_TYPE_NONE}
641 /* See apps/apps.h if you change this table. */
642 static const ssl_conf_cmd_tbl ssl_conf_cmds
[] = {
643 SSL_CONF_CMD_SWITCH("no_ssl3", 0),
644 SSL_CONF_CMD_SWITCH("no_tls1", 0),
645 SSL_CONF_CMD_SWITCH("no_tls1_1", 0),
646 SSL_CONF_CMD_SWITCH("no_tls1_2", 0),
647 SSL_CONF_CMD_SWITCH("no_tls1_3", 0),
648 SSL_CONF_CMD_SWITCH("bugs", 0),
649 SSL_CONF_CMD_SWITCH("no_comp", 0),
650 SSL_CONF_CMD_SWITCH("comp", 0),
651 SSL_CONF_CMD_SWITCH("ecdh_single", SSL_CONF_FLAG_SERVER
),
652 SSL_CONF_CMD_SWITCH("no_ticket", 0),
653 SSL_CONF_CMD_SWITCH("serverpref", SSL_CONF_FLAG_SERVER
),
654 SSL_CONF_CMD_SWITCH("legacy_renegotiation", 0),
655 SSL_CONF_CMD_SWITCH("legacy_server_connect", SSL_CONF_FLAG_SERVER
),
656 SSL_CONF_CMD_SWITCH("no_renegotiation", 0),
657 SSL_CONF_CMD_SWITCH("no_resumption_on_reneg", SSL_CONF_FLAG_SERVER
),
658 SSL_CONF_CMD_SWITCH("no_legacy_server_connect", SSL_CONF_FLAG_SERVER
),
659 SSL_CONF_CMD_SWITCH("allow_no_dhe_kex", 0),
660 SSL_CONF_CMD_SWITCH("prioritize_chacha", SSL_CONF_FLAG_SERVER
),
661 SSL_CONF_CMD_SWITCH("strict", 0),
662 SSL_CONF_CMD_SWITCH("no_middlebox", 0),
663 SSL_CONF_CMD_SWITCH("anti_replay", SSL_CONF_FLAG_SERVER
),
664 SSL_CONF_CMD_SWITCH("no_anti_replay", SSL_CONF_FLAG_SERVER
),
665 SSL_CONF_CMD_STRING(SignatureAlgorithms
, "sigalgs", 0),
666 SSL_CONF_CMD_STRING(ClientSignatureAlgorithms
, "client_sigalgs", 0),
667 SSL_CONF_CMD_STRING(Curves
, "curves", 0),
668 SSL_CONF_CMD_STRING(Groups
, "groups", 0),
669 #ifndef OPENSSL_NO_EC
670 SSL_CONF_CMD_STRING(ECDHParameters
, "named_curve", SSL_CONF_FLAG_SERVER
),
672 SSL_CONF_CMD_STRING(CipherString
, "cipher", 0),
673 SSL_CONF_CMD_STRING(Ciphersuites
, "ciphersuites", 0),
674 SSL_CONF_CMD_STRING(Protocol
, NULL
, 0),
675 SSL_CONF_CMD_STRING(MinProtocol
, "min_protocol", 0),
676 SSL_CONF_CMD_STRING(MaxProtocol
, "max_protocol", 0),
677 SSL_CONF_CMD_STRING(Options
, NULL
, 0),
678 SSL_CONF_CMD_STRING(VerifyMode
, NULL
, 0),
679 SSL_CONF_CMD(Certificate
, "cert", SSL_CONF_FLAG_CERTIFICATE
,
681 SSL_CONF_CMD(PrivateKey
, "key", SSL_CONF_FLAG_CERTIFICATE
,
683 SSL_CONF_CMD(ServerInfoFile
, NULL
,
684 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
686 SSL_CONF_CMD(ChainCAPath
, "chainCApath", SSL_CONF_FLAG_CERTIFICATE
,
688 SSL_CONF_CMD(ChainCAFile
, "chainCAfile", SSL_CONF_FLAG_CERTIFICATE
,
690 SSL_CONF_CMD(ChainCAStore
, "chainCAstore", SSL_CONF_FLAG_CERTIFICATE
,
691 SSL_CONF_TYPE_STORE
),
692 SSL_CONF_CMD(VerifyCAPath
, "verifyCApath", SSL_CONF_FLAG_CERTIFICATE
,
694 SSL_CONF_CMD(VerifyCAFile
, "verifyCAfile", SSL_CONF_FLAG_CERTIFICATE
,
696 SSL_CONF_CMD(VerifyCAStore
, "verifyCAstore", SSL_CONF_FLAG_CERTIFICATE
,
697 SSL_CONF_TYPE_STORE
),
698 SSL_CONF_CMD(RequestCAFile
, "requestCAFile", SSL_CONF_FLAG_CERTIFICATE
,
700 SSL_CONF_CMD(ClientCAFile
, NULL
,
701 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
703 SSL_CONF_CMD(RequestCAPath
, NULL
, SSL_CONF_FLAG_CERTIFICATE
,
705 SSL_CONF_CMD(ClientCAPath
, NULL
,
706 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
708 SSL_CONF_CMD(RequestCAStore
, "requestCAStore", SSL_CONF_FLAG_CERTIFICATE
,
709 SSL_CONF_TYPE_STORE
),
710 SSL_CONF_CMD(ClientCAStore
, NULL
,
711 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
712 SSL_CONF_TYPE_STORE
),
713 #ifndef OPENSSL_NO_DH
714 SSL_CONF_CMD(DHParameters
, "dhparam",
715 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
718 SSL_CONF_CMD_STRING(RecordPadding
, "record_padding", 0),
719 SSL_CONF_CMD_STRING(NumTickets
, "num_tickets", SSL_CONF_FLAG_SERVER
),
722 /* Supported switches: must match order of switches in ssl_conf_cmds */
723 static const ssl_switch_tbl ssl_cmd_switches
[] = {
724 {SSL_OP_NO_SSLv3
, 0}, /* no_ssl3 */
725 {SSL_OP_NO_TLSv1
, 0}, /* no_tls1 */
726 {SSL_OP_NO_TLSv1_1
, 0}, /* no_tls1_1 */
727 {SSL_OP_NO_TLSv1_2
, 0}, /* no_tls1_2 */
728 {SSL_OP_NO_TLSv1_3
, 0}, /* no_tls1_3 */
729 {SSL_OP_ALL
, 0}, /* bugs */
730 {SSL_OP_NO_COMPRESSION
, 0}, /* no_comp */
731 {SSL_OP_NO_COMPRESSION
, SSL_TFLAG_INV
}, /* comp */
732 {SSL_OP_SINGLE_ECDH_USE
, 0}, /* ecdh_single */
733 {SSL_OP_NO_TICKET
, 0}, /* no_ticket */
734 {SSL_OP_CIPHER_SERVER_PREFERENCE
, 0}, /* serverpref */
735 /* legacy_renegotiation */
736 {SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
, 0},
737 /* legacy_server_connect */
738 {SSL_OP_LEGACY_SERVER_CONNECT
, 0},
739 /* no_renegotiation */
740 {SSL_OP_NO_RENEGOTIATION
, 0},
741 /* no_resumption_on_reneg */
742 {SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
, 0},
743 /* no_legacy_server_connect */
744 {SSL_OP_LEGACY_SERVER_CONNECT
, SSL_TFLAG_INV
},
745 /* allow_no_dhe_kex */
746 {SSL_OP_ALLOW_NO_DHE_KEX
, 0},
747 /* chacha reprioritization */
748 {SSL_OP_PRIORITIZE_CHACHA
, 0},
749 {SSL_CERT_FLAG_TLS_STRICT
, SSL_TFLAG_CERT
}, /* strict */
751 {SSL_OP_ENABLE_MIDDLEBOX_COMPAT
, SSL_TFLAG_INV
},
753 {SSL_OP_NO_ANTI_REPLAY
, SSL_TFLAG_INV
},
755 {SSL_OP_NO_ANTI_REPLAY
, 0},
758 static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX
*cctx
, const char **pcmd
)
760 if (pcmd
== NULL
|| *pcmd
== NULL
)
762 /* If a prefix is set, check and skip */
764 if (strlen(*pcmd
) <= cctx
->prefixlen
)
766 if (cctx
->flags
& SSL_CONF_FLAG_CMDLINE
&&
767 strncmp(*pcmd
, cctx
->prefix
, cctx
->prefixlen
))
769 if (cctx
->flags
& SSL_CONF_FLAG_FILE
&&
770 strncasecmp(*pcmd
, cctx
->prefix
, cctx
->prefixlen
))
772 *pcmd
+= cctx
->prefixlen
;
773 } else if (cctx
->flags
& SSL_CONF_FLAG_CMDLINE
) {
774 if (**pcmd
!= '-' || !(*pcmd
)[1])
781 /* Determine if a command is allowed according to cctx flags */
782 static int ssl_conf_cmd_allowed(SSL_CONF_CTX
*cctx
, const ssl_conf_cmd_tbl
* t
)
784 unsigned int tfl
= t
->flags
;
785 unsigned int cfl
= cctx
->flags
;
786 if ((tfl
& SSL_CONF_FLAG_SERVER
) && !(cfl
& SSL_CONF_FLAG_SERVER
))
788 if ((tfl
& SSL_CONF_FLAG_CLIENT
) && !(cfl
& SSL_CONF_FLAG_CLIENT
))
790 if ((tfl
& SSL_CONF_FLAG_CERTIFICATE
)
791 && !(cfl
& SSL_CONF_FLAG_CERTIFICATE
))
796 static const ssl_conf_cmd_tbl
*ssl_conf_cmd_lookup(SSL_CONF_CTX
*cctx
,
799 const ssl_conf_cmd_tbl
*t
;
804 /* Look for matching parameter name in table */
805 for (i
= 0, t
= ssl_conf_cmds
; i
< OSSL_NELEM(ssl_conf_cmds
); i
++, t
++) {
806 if (ssl_conf_cmd_allowed(cctx
, t
)) {
807 if (cctx
->flags
& SSL_CONF_FLAG_CMDLINE
) {
808 if (t
->str_cmdline
&& strcmp(t
->str_cmdline
, cmd
) == 0)
811 if (cctx
->flags
& SSL_CONF_FLAG_FILE
) {
812 if (t
->str_file
&& strcasecmp(t
->str_file
, cmd
) == 0)
820 static int ctrl_switch_option(SSL_CONF_CTX
*cctx
, const ssl_conf_cmd_tbl
* cmd
)
822 /* Find index of command in table */
823 size_t idx
= cmd
- ssl_conf_cmds
;
824 const ssl_switch_tbl
*scmd
;
825 /* Sanity check index */
826 if (idx
>= OSSL_NELEM(ssl_cmd_switches
))
828 /* Obtain switches entry with same index */
829 scmd
= ssl_cmd_switches
+ idx
;
830 ssl_set_option(cctx
, scmd
->name_flags
, scmd
->option_value
, 1);
834 int SSL_CONF_cmd(SSL_CONF_CTX
*cctx
, const char *cmd
, const char *value
)
836 const ssl_conf_cmd_tbl
*runcmd
;
838 SSLerr(SSL_F_SSL_CONF_CMD
, SSL_R_INVALID_NULL_CMD_NAME
);
842 if (!ssl_conf_cmd_skip_prefix(cctx
, &cmd
))
845 runcmd
= ssl_conf_cmd_lookup(cctx
, cmd
);
849 if (runcmd
->value_type
== SSL_CONF_TYPE_NONE
) {
850 return ctrl_switch_option(cctx
, runcmd
);
854 rv
= runcmd
->cmd(cctx
, value
);
859 if (cctx
->flags
& SSL_CONF_FLAG_SHOW_ERRORS
) {
860 SSLerr(SSL_F_SSL_CONF_CMD
, SSL_R_BAD_VALUE
);
861 ERR_add_error_data(4, "cmd=", cmd
, ", value=", value
);
866 if (cctx
->flags
& SSL_CONF_FLAG_SHOW_ERRORS
) {
867 SSLerr(SSL_F_SSL_CONF_CMD
, SSL_R_UNKNOWN_CMD_NAME
);
868 ERR_add_error_data(2, "cmd=", cmd
);
874 int SSL_CONF_cmd_argv(SSL_CONF_CTX
*cctx
, int *pargc
, char ***pargv
)
877 const char *arg
= NULL
, *argn
;
879 if (pargc
!= NULL
&& *pargc
== 0)
881 if (pargc
== NULL
|| *pargc
> 0)
885 if (pargc
== NULL
|| *pargc
> 1)
889 cctx
->flags
&= ~SSL_CONF_FLAG_FILE
;
890 cctx
->flags
|= SSL_CONF_FLAG_CMDLINE
;
891 rv
= SSL_CONF_cmd(cctx
, arg
, argn
);
893 /* Success: update pargc, pargv */
899 /* Unknown switch: indicate no arguments processed */
902 /* Some error occurred processing command, return fatal error */
908 int SSL_CONF_cmd_value_type(SSL_CONF_CTX
*cctx
, const char *cmd
)
910 if (ssl_conf_cmd_skip_prefix(cctx
, &cmd
)) {
911 const ssl_conf_cmd_tbl
*runcmd
;
912 runcmd
= ssl_conf_cmd_lookup(cctx
, cmd
);
914 return runcmd
->value_type
;
916 return SSL_CONF_TYPE_UNKNOWN
;
919 SSL_CONF_CTX
*SSL_CONF_CTX_new(void)
921 SSL_CONF_CTX
*ret
= OPENSSL_zalloc(sizeof(*ret
));
926 int SSL_CONF_CTX_finish(SSL_CONF_CTX
*cctx
)
928 /* See if any certificates are missing private keys */
935 if (c
&& cctx
->flags
& SSL_CONF_FLAG_REQUIRE_PRIVATE
) {
936 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
937 const char *p
= cctx
->cert_filename
[i
];
939 * If missing private key try to load one from certificate file
941 if (p
&& !c
->pkeys
[i
].privatekey
) {
942 if (!cmd_PrivateKey(cctx
, p
))
949 SSL_set0_CA_list(cctx
->ssl
, cctx
->canames
);
951 SSL_CTX_set0_CA_list(cctx
->ctx
, cctx
->canames
);
953 sk_X509_NAME_pop_free(cctx
->canames
, X509_NAME_free
);
954 cctx
->canames
= NULL
;
959 void SSL_CONF_CTX_free(SSL_CONF_CTX
*cctx
)
963 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
964 OPENSSL_free(cctx
->cert_filename
[i
]);
965 OPENSSL_free(cctx
->prefix
);
966 sk_X509_NAME_pop_free(cctx
->canames
, X509_NAME_free
);
971 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX
*cctx
, unsigned int flags
)
973 cctx
->flags
|= flags
;
977 unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX
*cctx
, unsigned int flags
)
979 cctx
->flags
&= ~flags
;
983 int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX
*cctx
, const char *pre
)
987 tmp
= OPENSSL_strdup(pre
);
991 OPENSSL_free(cctx
->prefix
);
994 cctx
->prefixlen
= strlen(tmp
);
1000 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX
*cctx
, SSL
*ssl
)
1005 cctx
->poptions
= &ssl
->options
;
1006 cctx
->min_version
= &ssl
->min_proto_version
;
1007 cctx
->max_version
= &ssl
->max_proto_version
;
1008 cctx
->pcert_flags
= &ssl
->cert
->cert_flags
;
1009 cctx
->pvfy_flags
= &ssl
->verify_mode
;
1011 cctx
->poptions
= NULL
;
1012 cctx
->min_version
= NULL
;
1013 cctx
->max_version
= NULL
;
1014 cctx
->pcert_flags
= NULL
;
1015 cctx
->pvfy_flags
= NULL
;
1019 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX
*cctx
, SSL_CTX
*ctx
)
1024 cctx
->poptions
= &ctx
->options
;
1025 cctx
->min_version
= &ctx
->min_proto_version
;
1026 cctx
->max_version
= &ctx
->max_proto_version
;
1027 cctx
->pcert_flags
= &ctx
->cert
->cert_flags
;
1028 cctx
->pvfy_flags
= &ctx
->verify_mode
;
1030 cctx
->poptions
= NULL
;
1031 cctx
->min_version
= NULL
;
1032 cctx
->max_version
= NULL
;
1033 cctx
->pcert_flags
= NULL
;
1034 cctx
->pvfy_flags
= NULL
;