2 * Copyright 2012-2018 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"
18 * structure holding name tables. This is used for permitted elements in lists
25 unsigned int name_flags
;
26 unsigned long option_value
;
29 /* Switch table: use for single command line switches like no_tls2 */
31 unsigned long option_value
;
32 unsigned int name_flags
;
35 /* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
36 #define SSL_TFLAG_INV 0x1
37 /* Mask for type of flag referred to */
38 #define SSL_TFLAG_TYPE_MASK 0xf00
39 /* Flag is for options */
40 #define SSL_TFLAG_OPTION 0x000
41 /* Flag is for cert_flags */
42 #define SSL_TFLAG_CERT 0x100
43 /* Flag is for verify mode */
44 #define SSL_TFLAG_VFY 0x200
45 /* Option can only be used for clients */
46 #define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
47 /* Option can only be used for servers */
48 #define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
49 #define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
51 #define SSL_FLAG_TBL(str, flag) \
52 {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
53 #define SSL_FLAG_TBL_SRV(str, flag) \
54 {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
55 #define SSL_FLAG_TBL_CLI(str, flag) \
56 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
57 #define SSL_FLAG_TBL_INV(str, flag) \
58 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
59 #define SSL_FLAG_TBL_SRV_INV(str, flag) \
60 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
61 #define SSL_FLAG_TBL_CERT(str, flag) \
62 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
64 #define SSL_FLAG_VFY_CLI(str, flag) \
65 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_CLIENT, flag}
66 #define SSL_FLAG_VFY_SRV(str, flag) \
67 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_SERVER, flag}
70 * Opaque structure containing SSL configuration context.
73 struct ssl_conf_ctx_st
{
75 * Various flags indicating (among other things) which options we will
79 /* Prefix and length of commands */
82 /* SSL_CTX or SSL structure to perform operations on */
85 /* Pointer to SSL or SSL_CTX options field or NULL if none */
87 /* Certificate filenames for each type */
88 char *cert_filename
[SSL_PKEY_NUM
];
89 /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
90 uint32_t *pcert_flags
;
91 /* Pointer to SSL or SSL_CTX verify_mode or NULL if none */
93 /* Pointer to SSL or SSL_CTX min_version field or NULL if none */
95 /* Pointer to SSL or SSL_CTX max_version field or NULL if none */
97 /* Current flag table being worked on */
98 const ssl_flag_tbl
*tbl
;
101 /* Client CA names */
102 STACK_OF(X509_NAME
) *canames
;
105 static void ssl_set_option(SSL_CONF_CTX
*cctx
, unsigned int name_flags
,
106 unsigned long option_value
, int onoff
)
109 if (cctx
->poptions
== NULL
)
111 if (name_flags
& SSL_TFLAG_INV
)
113 switch (name_flags
& SSL_TFLAG_TYPE_MASK
) {
116 pflags
= cctx
->pcert_flags
;
120 pflags
= cctx
->pvfy_flags
;
123 case SSL_TFLAG_OPTION
:
124 pflags
= cctx
->poptions
;
132 *pflags
|= option_value
;
134 *pflags
&= ~option_value
;
137 static int ssl_match_option(SSL_CONF_CTX
*cctx
, const ssl_flag_tbl
*tbl
,
138 const char *name
, int namelen
, int onoff
)
140 /* If name not relevant for context skip */
141 if (!(cctx
->flags
& tbl
->name_flags
& SSL_TFLAG_BOTH
))
144 if (strcmp(tbl
->name
, name
))
146 } else if (tbl
->namelen
!= namelen
|| strncasecmp(tbl
->name
, name
, namelen
))
148 ssl_set_option(cctx
, tbl
->name_flags
, tbl
->option_value
, onoff
);
152 static int ssl_set_option_list(const char *elem
, int len
, void *usr
)
154 SSL_CONF_CTX
*cctx
= usr
;
156 const ssl_flag_tbl
*tbl
;
159 * len == -1 indicates not being called in list context, just for single
160 * command line switches, so don't allow +, -.
169 } else if (*elem
== '-') {
175 for (i
= 0, tbl
= cctx
->tbl
; i
< cctx
->ntbl
; i
++, tbl
++) {
176 if (ssl_match_option(cctx
, tbl
, elem
, len
, onoff
))
182 /* Set supported signature algorithms */
183 static int cmd_SignatureAlgorithms(SSL_CONF_CTX
*cctx
, const char *value
)
187 rv
= SSL_set1_sigalgs_list(cctx
->ssl
, value
);
188 /* NB: ctx == NULL performs syntax checking only */
190 rv
= SSL_CTX_set1_sigalgs_list(cctx
->ctx
, value
);
194 /* Set supported client signature algorithms */
195 static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX
*cctx
, const char *value
)
199 rv
= SSL_set1_client_sigalgs_list(cctx
->ssl
, value
);
200 /* NB: ctx == NULL performs syntax checking only */
202 rv
= SSL_CTX_set1_client_sigalgs_list(cctx
->ctx
, value
);
206 static int cmd_Groups(SSL_CONF_CTX
*cctx
, const char *value
)
210 rv
= SSL_set1_groups_list(cctx
->ssl
, value
);
211 /* NB: ctx == NULL performs syntax checking only */
213 rv
= SSL_CTX_set1_groups_list(cctx
->ctx
, value
);
217 /* This is the old name for cmd_Groups - retained for backwards compatibility */
218 static int cmd_Curves(SSL_CONF_CTX
*cctx
, const char *value
)
220 return cmd_Groups(cctx
, value
);
223 #ifndef OPENSSL_NO_EC
224 /* ECDH temporary parameters */
225 static int cmd_ECDHParameters(SSL_CONF_CTX
*cctx
, const char *value
)
230 /* Ignore values supported by 1.0.2 for the automatic selection */
231 if ((cctx
->flags
& SSL_CONF_FLAG_FILE
)
232 && (strcasecmp(value
, "+automatic") == 0
233 || strcasecmp(value
, "automatic") == 0))
235 if ((cctx
->flags
& SSL_CONF_FLAG_CMDLINE
) &&
236 strcmp(value
, "auto") == 0)
239 nid
= EC_curve_nist2nid(value
);
240 if (nid
== NID_undef
)
241 nid
= OBJ_sn2nid(value
);
246 rv
= SSL_CTX_set1_groups(cctx
->ctx
, &nid
, 1);
248 rv
= SSL_set1_groups(cctx
->ssl
, &nid
, 1);
253 static int cmd_CipherString(SSL_CONF_CTX
*cctx
, const char *value
)
258 rv
= SSL_CTX_set_cipher_list(cctx
->ctx
, value
);
260 rv
= SSL_set_cipher_list(cctx
->ssl
, value
);
264 static int cmd_Ciphersuites(SSL_CONF_CTX
*cctx
, const char *value
)
269 rv
= SSL_CTX_set_ciphersuites(cctx
->ctx
, value
);
271 rv
= SSL_set_ciphersuites(cctx
->ssl
, value
);
275 static int cmd_Protocol(SSL_CONF_CTX
*cctx
, const char *value
)
277 static const ssl_flag_tbl ssl_protocol_list
[] = {
278 SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK
),
279 SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2
),
280 SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3
),
281 SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1
),
282 SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1
),
283 SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2
),
284 SSL_FLAG_TBL_INV("TLSv1.3", SSL_OP_NO_TLSv1_3
),
285 SSL_FLAG_TBL_INV("DTLSv1", SSL_OP_NO_DTLSv1
),
286 SSL_FLAG_TBL_INV("DTLSv1.2", SSL_OP_NO_DTLSv1_2
)
288 cctx
->tbl
= ssl_protocol_list
;
289 cctx
->ntbl
= OSSL_NELEM(ssl_protocol_list
);
290 return CONF_parse_list(value
, ',', 1, ssl_set_option_list
, cctx
);
294 * protocol_from_string - converts a protocol version string to a number
296 * Returns -1 on failure or the version on success
298 static int protocol_from_string(const char *value
)
300 struct protocol_versions
{
304 static const struct protocol_versions versions
[] = {
306 {"SSLv3", SSL3_VERSION
},
307 {"TLSv1", TLS1_VERSION
},
308 {"TLSv1.1", TLS1_1_VERSION
},
309 {"TLSv1.2", TLS1_2_VERSION
},
310 {"TLSv1.3", TLS1_3_VERSION
},
311 {"DTLSv1", DTLS1_VERSION
},
312 {"DTLSv1.2", DTLS1_2_VERSION
}
315 size_t n
= OSSL_NELEM(versions
);
317 for (i
= 0; i
< n
; i
++)
318 if (strcmp(versions
[i
].name
, value
) == 0)
319 return versions
[i
].version
;
323 static int min_max_proto(SSL_CONF_CTX
*cctx
, const char *value
, int *bound
)
328 if (cctx
->ctx
!= NULL
)
329 method_version
= cctx
->ctx
->method
->version
;
330 else if (cctx
->ssl
!= NULL
)
331 method_version
= cctx
->ssl
->ctx
->method
->version
;
334 if ((new_version
= protocol_from_string(value
)) < 0)
336 return ssl_set_version_bound(method_version
, new_version
, bound
);
340 * cmd_MinProtocol - Set min protocol version
341 * @cctx: config structure to save settings in
342 * @value: The min protocol version in string form
344 * Returns 1 on success and 0 on failure.
346 static int cmd_MinProtocol(SSL_CONF_CTX
*cctx
, const char *value
)
348 return min_max_proto(cctx
, value
, cctx
->min_version
);
352 * cmd_MaxProtocol - Set max protocol version
353 * @cctx: config structure to save settings in
354 * @value: The max protocol version in string form
356 * Returns 1 on success and 0 on failure.
358 static int cmd_MaxProtocol(SSL_CONF_CTX
*cctx
, const char *value
)
360 return min_max_proto(cctx
, value
, cctx
->max_version
);
363 static int cmd_Options(SSL_CONF_CTX
*cctx
, const char *value
)
365 static const ssl_flag_tbl ssl_option_list
[] = {
366 SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET
),
367 SSL_FLAG_TBL_INV("EmptyFragments",
368 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
),
369 SSL_FLAG_TBL("Bugs", SSL_OP_ALL
),
370 SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION
),
371 SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE
),
372 SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
373 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
),
374 SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE
),
375 SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE
),
376 SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
377 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
),
378 SSL_FLAG_TBL_INV("EncryptThenMac", SSL_OP_NO_ENCRYPT_THEN_MAC
),
379 SSL_FLAG_TBL("NoRenegotiation", SSL_OP_NO_RENEGOTIATION
),
380 SSL_FLAG_TBL("AllowNoDHEKEX", SSL_OP_ALLOW_NO_DHE_KEX
),
381 SSL_FLAG_TBL("PrioritizeChaCha", SSL_OP_PRIORITIZE_CHACHA
),
382 SSL_FLAG_TBL("MiddleboxCompat", SSL_OP_ENABLE_MIDDLEBOX_COMPAT
),
383 SSL_FLAG_TBL_INV("AntiReplay", SSL_OP_NO_ANTI_REPLAY
),
384 SSL_FLAG_TBL_INV("ExtendedMasterSecret", SSL_OP_NO_EXTENDED_MASTER_SECRET
)
388 cctx
->tbl
= ssl_option_list
;
389 cctx
->ntbl
= OSSL_NELEM(ssl_option_list
);
390 return CONF_parse_list(value
, ',', 1, ssl_set_option_list
, cctx
);
393 static int cmd_VerifyMode(SSL_CONF_CTX
*cctx
, const char *value
)
395 static const ssl_flag_tbl ssl_vfy_list
[] = {
396 SSL_FLAG_VFY_CLI("Peer", SSL_VERIFY_PEER
),
397 SSL_FLAG_VFY_SRV("Request", SSL_VERIFY_PEER
),
398 SSL_FLAG_VFY_SRV("Require",
399 SSL_VERIFY_PEER
| SSL_VERIFY_FAIL_IF_NO_PEER_CERT
),
400 SSL_FLAG_VFY_SRV("Once", SSL_VERIFY_PEER
| SSL_VERIFY_CLIENT_ONCE
),
401 SSL_FLAG_VFY_SRV("RequestPostHandshake",
402 SSL_VERIFY_PEER
| SSL_VERIFY_POST_HANDSHAKE
),
403 SSL_FLAG_VFY_SRV("RequirePostHandshake",
404 SSL_VERIFY_PEER
| SSL_VERIFY_POST_HANDSHAKE
|
405 SSL_VERIFY_FAIL_IF_NO_PEER_CERT
),
409 cctx
->tbl
= ssl_vfy_list
;
410 cctx
->ntbl
= OSSL_NELEM(ssl_vfy_list
);
411 return CONF_parse_list(value
, ',', 1, ssl_set_option_list
, cctx
);
414 static int cmd_Certificate(SSL_CONF_CTX
*cctx
, const char *value
)
419 rv
= SSL_CTX_use_certificate_chain_file(cctx
->ctx
, value
);
423 rv
= SSL_use_certificate_chain_file(cctx
->ssl
, value
);
426 if (rv
> 0 && c
&& cctx
->flags
& SSL_CONF_FLAG_REQUIRE_PRIVATE
) {
427 char **pfilename
= &cctx
->cert_filename
[c
->key
- c
->pkeys
];
428 OPENSSL_free(*pfilename
);
429 *pfilename
= OPENSSL_strdup(value
);
430 if (*pfilename
== NULL
)
437 static int cmd_PrivateKey(SSL_CONF_CTX
*cctx
, const char *value
)
440 if (!(cctx
->flags
& SSL_CONF_FLAG_CERTIFICATE
))
443 rv
= SSL_CTX_use_PrivateKey_file(cctx
->ctx
, value
, SSL_FILETYPE_PEM
);
445 rv
= SSL_use_PrivateKey_file(cctx
->ssl
, value
, SSL_FILETYPE_PEM
);
449 static int cmd_ServerInfoFile(SSL_CONF_CTX
*cctx
, const char *value
)
453 rv
= SSL_CTX_use_serverinfo_file(cctx
->ctx
, value
);
457 static int do_store(SSL_CONF_CTX
*cctx
,
458 const char *CAfile
, const char *CApath
, int verify_store
)
463 cert
= cctx
->ctx
->cert
;
465 cert
= cctx
->ssl
->cert
;
468 st
= verify_store
? &cert
->verify_store
: &cert
->chain_store
;
470 *st
= X509_STORE_new();
474 return X509_STORE_load_locations(*st
, CAfile
, CApath
) > 0;
477 static int cmd_ChainCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
479 return do_store(cctx
, NULL
, value
, 0);
482 static int cmd_ChainCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
484 return do_store(cctx
, value
, NULL
, 0);
487 static int cmd_VerifyCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
489 return do_store(cctx
, NULL
, value
, 1);
492 static int cmd_VerifyCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
494 return do_store(cctx
, value
, NULL
, 1);
497 static int cmd_RequestCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
499 if (cctx
->canames
== NULL
)
500 cctx
->canames
= sk_X509_NAME_new_null();
501 if (cctx
->canames
== NULL
)
503 return SSL_add_file_cert_subjects_to_stack(cctx
->canames
, value
);
506 static int cmd_ClientCAFile(SSL_CONF_CTX
*cctx
, const char *value
)
508 return cmd_RequestCAFile(cctx
, value
);
511 static int cmd_RequestCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
513 if (cctx
->canames
== NULL
)
514 cctx
->canames
= sk_X509_NAME_new_null();
515 if (cctx
->canames
== NULL
)
517 return SSL_add_dir_cert_subjects_to_stack(cctx
->canames
, value
);
520 static int cmd_ClientCAPath(SSL_CONF_CTX
*cctx
, const char *value
)
522 return cmd_RequestCAPath(cctx
, value
);
525 #ifndef OPENSSL_NO_DH
526 static int cmd_DHParameters(SSL_CONF_CTX
*cctx
, const char *value
)
531 if (cctx
->ctx
|| cctx
->ssl
) {
532 in
= BIO_new(BIO_s_file());
535 if (BIO_read_filename(in
, value
) <= 0)
537 dh
= PEM_read_bio_DHparams(in
, NULL
, NULL
, NULL
);
543 rv
= SSL_CTX_set_tmp_dh(cctx
->ctx
, dh
);
545 rv
= SSL_set_tmp_dh(cctx
->ssl
, dh
);
553 static int cmd_RecordPadding(SSL_CONF_CTX
*cctx
, const char *value
)
556 int block_size
= atoi(value
);
559 * All we care about is a non-negative value,
560 * the setters check the range
562 if (block_size
>= 0) {
564 rv
= SSL_CTX_set_block_padding(cctx
->ctx
, block_size
);
566 rv
= SSL_set_block_padding(cctx
->ssl
, block_size
);
572 static int cmd_NumTickets(SSL_CONF_CTX
*cctx
, const char *value
)
575 int num_tickets
= atoi(value
);
577 if (num_tickets
>= 0) {
579 rv
= SSL_CTX_set_num_tickets(cctx
->ctx
, num_tickets
);
581 rv
= SSL_set_num_tickets(cctx
->ssl
, num_tickets
);
587 int (*cmd
) (SSL_CONF_CTX
*cctx
, const char *value
);
588 const char *str_file
;
589 const char *str_cmdline
;
590 unsigned short flags
;
591 unsigned short value_type
;
594 /* Table of supported parameters */
596 #define SSL_CONF_CMD(name, cmdopt, flags, type) \
597 {cmd_##name, #name, cmdopt, flags, type}
599 #define SSL_CONF_CMD_STRING(name, cmdopt, flags) \
600 SSL_CONF_CMD(name, cmdopt, flags, SSL_CONF_TYPE_STRING)
602 #define SSL_CONF_CMD_SWITCH(name, flags) \
603 {0, NULL, name, flags, SSL_CONF_TYPE_NONE}
605 /* See apps/apps.h if you change this table. */
606 static const ssl_conf_cmd_tbl ssl_conf_cmds
[] = {
607 SSL_CONF_CMD_SWITCH("no_ssl3", 0),
608 SSL_CONF_CMD_SWITCH("no_tls1", 0),
609 SSL_CONF_CMD_SWITCH("no_tls1_1", 0),
610 SSL_CONF_CMD_SWITCH("no_tls1_2", 0),
611 SSL_CONF_CMD_SWITCH("no_tls1_3", 0),
612 SSL_CONF_CMD_SWITCH("bugs", 0),
613 SSL_CONF_CMD_SWITCH("no_comp", 0),
614 SSL_CONF_CMD_SWITCH("comp", 0),
615 SSL_CONF_CMD_SWITCH("ecdh_single", SSL_CONF_FLAG_SERVER
),
616 SSL_CONF_CMD_SWITCH("no_ticket", 0),
617 SSL_CONF_CMD_SWITCH("serverpref", SSL_CONF_FLAG_SERVER
),
618 SSL_CONF_CMD_SWITCH("legacy_renegotiation", 0),
619 SSL_CONF_CMD_SWITCH("legacy_server_connect", SSL_CONF_FLAG_SERVER
),
620 SSL_CONF_CMD_SWITCH("no_renegotiation", 0),
621 SSL_CONF_CMD_SWITCH("no_resumption_on_reneg", SSL_CONF_FLAG_SERVER
),
622 SSL_CONF_CMD_SWITCH("no_legacy_server_connect", SSL_CONF_FLAG_SERVER
),
623 SSL_CONF_CMD_SWITCH("allow_no_dhe_kex", 0),
624 SSL_CONF_CMD_SWITCH("prioritize_chacha", SSL_CONF_FLAG_SERVER
),
625 SSL_CONF_CMD_SWITCH("strict", 0),
626 SSL_CONF_CMD_SWITCH("no_middlebox", 0),
627 SSL_CONF_CMD_SWITCH("anti_replay", SSL_CONF_FLAG_SERVER
),
628 SSL_CONF_CMD_SWITCH("no_anti_replay", SSL_CONF_FLAG_SERVER
),
629 SSL_CONF_CMD_STRING(SignatureAlgorithms
, "sigalgs", 0),
630 SSL_CONF_CMD_STRING(ClientSignatureAlgorithms
, "client_sigalgs", 0),
631 SSL_CONF_CMD_STRING(Curves
, "curves", 0),
632 SSL_CONF_CMD_STRING(Groups
, "groups", 0),
633 #ifndef OPENSSL_NO_EC
634 SSL_CONF_CMD_STRING(ECDHParameters
, "named_curve", SSL_CONF_FLAG_SERVER
),
636 SSL_CONF_CMD_STRING(CipherString
, "cipher", 0),
637 SSL_CONF_CMD_STRING(Ciphersuites
, "ciphersuites", 0),
638 SSL_CONF_CMD_STRING(Protocol
, NULL
, 0),
639 SSL_CONF_CMD_STRING(MinProtocol
, "min_protocol", 0),
640 SSL_CONF_CMD_STRING(MaxProtocol
, "max_protocol", 0),
641 SSL_CONF_CMD_STRING(Options
, NULL
, 0),
642 SSL_CONF_CMD_STRING(VerifyMode
, NULL
, 0),
643 SSL_CONF_CMD(Certificate
, "cert", SSL_CONF_FLAG_CERTIFICATE
,
645 SSL_CONF_CMD(PrivateKey
, "key", SSL_CONF_FLAG_CERTIFICATE
,
647 SSL_CONF_CMD(ServerInfoFile
, NULL
,
648 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
650 SSL_CONF_CMD(ChainCAPath
, "chainCApath", SSL_CONF_FLAG_CERTIFICATE
,
652 SSL_CONF_CMD(ChainCAFile
, "chainCAfile", SSL_CONF_FLAG_CERTIFICATE
,
654 SSL_CONF_CMD(VerifyCAPath
, "verifyCApath", SSL_CONF_FLAG_CERTIFICATE
,
656 SSL_CONF_CMD(VerifyCAFile
, "verifyCAfile", SSL_CONF_FLAG_CERTIFICATE
,
658 SSL_CONF_CMD(RequestCAFile
, "requestCAFile", SSL_CONF_FLAG_CERTIFICATE
,
660 SSL_CONF_CMD(ClientCAFile
, NULL
,
661 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
663 SSL_CONF_CMD(RequestCAPath
, NULL
, SSL_CONF_FLAG_CERTIFICATE
,
665 SSL_CONF_CMD(ClientCAPath
, NULL
,
666 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
668 #ifndef OPENSSL_NO_DH
669 SSL_CONF_CMD(DHParameters
, "dhparam",
670 SSL_CONF_FLAG_SERVER
| SSL_CONF_FLAG_CERTIFICATE
,
673 SSL_CONF_CMD_STRING(RecordPadding
, "record_padding", 0),
674 SSL_CONF_CMD_STRING(NumTickets
, "num_tickets", SSL_CONF_FLAG_SERVER
),
677 /* Supported switches: must match order of switches in ssl_conf_cmds */
678 static const ssl_switch_tbl ssl_cmd_switches
[] = {
679 {SSL_OP_NO_SSLv3
, 0}, /* no_ssl3 */
680 {SSL_OP_NO_TLSv1
, 0}, /* no_tls1 */
681 {SSL_OP_NO_TLSv1_1
, 0}, /* no_tls1_1 */
682 {SSL_OP_NO_TLSv1_2
, 0}, /* no_tls1_2 */
683 {SSL_OP_NO_TLSv1_3
, 0}, /* no_tls1_3 */
684 {SSL_OP_ALL
, 0}, /* bugs */
685 {SSL_OP_NO_COMPRESSION
, 0}, /* no_comp */
686 {SSL_OP_NO_COMPRESSION
, SSL_TFLAG_INV
}, /* comp */
687 {SSL_OP_SINGLE_ECDH_USE
, 0}, /* ecdh_single */
688 {SSL_OP_NO_TICKET
, 0}, /* no_ticket */
689 {SSL_OP_CIPHER_SERVER_PREFERENCE
, 0}, /* serverpref */
690 /* legacy_renegotiation */
691 {SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
, 0},
692 /* legacy_server_connect */
693 {SSL_OP_LEGACY_SERVER_CONNECT
, 0},
694 /* no_renegotiation */
695 {SSL_OP_NO_RENEGOTIATION
, 0},
696 /* no_resumption_on_reneg */
697 {SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
, 0},
698 /* no_legacy_server_connect */
699 {SSL_OP_LEGACY_SERVER_CONNECT
, SSL_TFLAG_INV
},
700 /* allow_no_dhe_kex */
701 {SSL_OP_ALLOW_NO_DHE_KEX
, 0},
702 /* chacha reprioritization */
703 {SSL_OP_PRIORITIZE_CHACHA
, 0},
704 {SSL_CERT_FLAG_TLS_STRICT
, SSL_TFLAG_CERT
}, /* strict */
706 {SSL_OP_ENABLE_MIDDLEBOX_COMPAT
, SSL_TFLAG_INV
},
708 {SSL_OP_NO_ANTI_REPLAY
, SSL_TFLAG_INV
},
710 {SSL_OP_NO_ANTI_REPLAY
, 0},
713 static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX
*cctx
, const char **pcmd
)
715 if (pcmd
== NULL
|| *pcmd
== NULL
)
717 /* If a prefix is set, check and skip */
719 if (strlen(*pcmd
) <= cctx
->prefixlen
)
721 if (cctx
->flags
& SSL_CONF_FLAG_CMDLINE
&&
722 strncmp(*pcmd
, cctx
->prefix
, cctx
->prefixlen
))
724 if (cctx
->flags
& SSL_CONF_FLAG_FILE
&&
725 strncasecmp(*pcmd
, cctx
->prefix
, cctx
->prefixlen
))
727 *pcmd
+= cctx
->prefixlen
;
728 } else if (cctx
->flags
& SSL_CONF_FLAG_CMDLINE
) {
729 if (**pcmd
!= '-' || !(*pcmd
)[1])
736 /* Determine if a command is allowed according to cctx flags */
737 static int ssl_conf_cmd_allowed(SSL_CONF_CTX
*cctx
, const ssl_conf_cmd_tbl
* t
)
739 unsigned int tfl
= t
->flags
;
740 unsigned int cfl
= cctx
->flags
;
741 if ((tfl
& SSL_CONF_FLAG_SERVER
) && !(cfl
& SSL_CONF_FLAG_SERVER
))
743 if ((tfl
& SSL_CONF_FLAG_CLIENT
) && !(cfl
& SSL_CONF_FLAG_CLIENT
))
745 if ((tfl
& SSL_CONF_FLAG_CERTIFICATE
)
746 && !(cfl
& SSL_CONF_FLAG_CERTIFICATE
))
751 static const ssl_conf_cmd_tbl
*ssl_conf_cmd_lookup(SSL_CONF_CTX
*cctx
,
754 const ssl_conf_cmd_tbl
*t
;
759 /* Look for matching parameter name in table */
760 for (i
= 0, t
= ssl_conf_cmds
; i
< OSSL_NELEM(ssl_conf_cmds
); i
++, t
++) {
761 if (ssl_conf_cmd_allowed(cctx
, t
)) {
762 if (cctx
->flags
& SSL_CONF_FLAG_CMDLINE
) {
763 if (t
->str_cmdline
&& strcmp(t
->str_cmdline
, cmd
) == 0)
766 if (cctx
->flags
& SSL_CONF_FLAG_FILE
) {
767 if (t
->str_file
&& strcasecmp(t
->str_file
, cmd
) == 0)
775 static int ctrl_switch_option(SSL_CONF_CTX
*cctx
, const ssl_conf_cmd_tbl
* cmd
)
777 /* Find index of command in table */
778 size_t idx
= cmd
- ssl_conf_cmds
;
779 const ssl_switch_tbl
*scmd
;
780 /* Sanity check index */
781 if (idx
>= OSSL_NELEM(ssl_cmd_switches
))
783 /* Obtain switches entry with same index */
784 scmd
= ssl_cmd_switches
+ idx
;
785 ssl_set_option(cctx
, scmd
->name_flags
, scmd
->option_value
, 1);
789 int SSL_CONF_cmd(SSL_CONF_CTX
*cctx
, const char *cmd
, const char *value
)
791 const ssl_conf_cmd_tbl
*runcmd
;
793 SSLerr(SSL_F_SSL_CONF_CMD
, SSL_R_INVALID_NULL_CMD_NAME
);
797 if (!ssl_conf_cmd_skip_prefix(cctx
, &cmd
))
800 runcmd
= ssl_conf_cmd_lookup(cctx
, cmd
);
804 if (runcmd
->value_type
== SSL_CONF_TYPE_NONE
) {
805 return ctrl_switch_option(cctx
, runcmd
);
809 rv
= runcmd
->cmd(cctx
, value
);
814 if (cctx
->flags
& SSL_CONF_FLAG_SHOW_ERRORS
) {
815 SSLerr(SSL_F_SSL_CONF_CMD
, SSL_R_BAD_VALUE
);
816 ERR_add_error_data(4, "cmd=", cmd
, ", value=", value
);
821 if (cctx
->flags
& SSL_CONF_FLAG_SHOW_ERRORS
) {
822 SSLerr(SSL_F_SSL_CONF_CMD
, SSL_R_UNKNOWN_CMD_NAME
);
823 ERR_add_error_data(2, "cmd=", cmd
);
829 int SSL_CONF_cmd_argv(SSL_CONF_CTX
*cctx
, int *pargc
, char ***pargv
)
832 const char *arg
= NULL
, *argn
;
834 if (pargc
!= NULL
&& *pargc
== 0)
836 if (pargc
== NULL
|| *pargc
> 0)
840 if (pargc
== NULL
|| *pargc
> 1)
844 cctx
->flags
&= ~SSL_CONF_FLAG_FILE
;
845 cctx
->flags
|= SSL_CONF_FLAG_CMDLINE
;
846 rv
= SSL_CONF_cmd(cctx
, arg
, argn
);
848 /* Success: update pargc, pargv */
854 /* Unknown switch: indicate no arguments processed */
857 /* Some error occurred processing command, return fatal error */
863 int SSL_CONF_cmd_value_type(SSL_CONF_CTX
*cctx
, const char *cmd
)
865 if (ssl_conf_cmd_skip_prefix(cctx
, &cmd
)) {
866 const ssl_conf_cmd_tbl
*runcmd
;
867 runcmd
= ssl_conf_cmd_lookup(cctx
, cmd
);
869 return runcmd
->value_type
;
871 return SSL_CONF_TYPE_UNKNOWN
;
874 SSL_CONF_CTX
*SSL_CONF_CTX_new(void)
876 SSL_CONF_CTX
*ret
= OPENSSL_zalloc(sizeof(*ret
));
881 int SSL_CONF_CTX_finish(SSL_CONF_CTX
*cctx
)
883 /* See if any certificates are missing private keys */
890 if (c
&& cctx
->flags
& SSL_CONF_FLAG_REQUIRE_PRIVATE
) {
891 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
892 const char *p
= cctx
->cert_filename
[i
];
894 * If missing private key try to load one from certificate file
896 if (p
&& !c
->pkeys
[i
].privatekey
) {
897 if (!cmd_PrivateKey(cctx
, p
))
904 SSL_set0_CA_list(cctx
->ssl
, cctx
->canames
);
906 SSL_CTX_set0_CA_list(cctx
->ctx
, cctx
->canames
);
908 sk_X509_NAME_pop_free(cctx
->canames
, X509_NAME_free
);
909 cctx
->canames
= NULL
;
914 void SSL_CONF_CTX_free(SSL_CONF_CTX
*cctx
)
918 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
919 OPENSSL_free(cctx
->cert_filename
[i
]);
920 OPENSSL_free(cctx
->prefix
);
921 sk_X509_NAME_pop_free(cctx
->canames
, X509_NAME_free
);
926 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX
*cctx
, unsigned int flags
)
928 cctx
->flags
|= flags
;
932 unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX
*cctx
, unsigned int flags
)
934 cctx
->flags
&= ~flags
;
938 int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX
*cctx
, const char *pre
)
942 tmp
= OPENSSL_strdup(pre
);
946 OPENSSL_free(cctx
->prefix
);
949 cctx
->prefixlen
= strlen(tmp
);
955 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX
*cctx
, SSL
*ssl
)
960 cctx
->poptions
= &ssl
->options
;
961 cctx
->min_version
= &ssl
->min_proto_version
;
962 cctx
->max_version
= &ssl
->max_proto_version
;
963 cctx
->pcert_flags
= &ssl
->cert
->cert_flags
;
964 cctx
->pvfy_flags
= &ssl
->verify_mode
;
966 cctx
->poptions
= NULL
;
967 cctx
->min_version
= NULL
;
968 cctx
->max_version
= NULL
;
969 cctx
->pcert_flags
= NULL
;
970 cctx
->pvfy_flags
= NULL
;
974 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX
*cctx
, SSL_CTX
*ctx
)
979 cctx
->poptions
= &ctx
->options
;
980 cctx
->min_version
= &ctx
->min_proto_version
;
981 cctx
->max_version
= &ctx
->max_proto_version
;
982 cctx
->pcert_flags
= &ctx
->cert
->cert_flags
;
983 cctx
->pvfy_flags
= &ctx
->verify_mode
;
985 cctx
->poptions
= NULL
;
986 cctx
->min_version
= NULL
;
987 cctx
->max_version
= NULL
;
988 cctx
->pcert_flags
= NULL
;
989 cctx
->pvfy_flags
= NULL
;