2 * ! \file ssl/ssl_conf.c \brief SSL configuration functions
4 /* ====================================================================
5 * Copyright (c) 2012 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * openssl-core@openssl.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
63 #include <openssl/conf.h>
64 #include <openssl/objects.h>
66 # include <openssl/dh.h>
70 * structure holding name tables. This is used for pemitted elements in lists
77 unsigned int name_flags;
78 unsigned long option_value;
81 /* Switch table: use for single command line switches like no_tls2 */
83 unsigned long option_value;
84 unsigned int name_flags;
87 /* Sense of name is inverted e.g. "TLSv1" will clear SSL_OP_NO_TLSv1 */
88 #define SSL_TFLAG_INV 0x1
89 /* Mask for type of flag referred to */
90 #define SSL_TFLAG_TYPE_MASK 0xf00
91 /* Flag is for options */
92 #define SSL_TFLAG_OPTION 0x000
93 /* Flag is for cert_flags */
94 #define SSL_TFLAG_CERT 0x100
95 /* Flag is for verify mode */
96 #define SSL_TFLAG_VFY 0x200
97 /* Option can only be used for clients */
98 #define SSL_TFLAG_CLIENT SSL_CONF_FLAG_CLIENT
99 /* Option can only be used for servers */
100 #define SSL_TFLAG_SERVER SSL_CONF_FLAG_SERVER
101 #define SSL_TFLAG_BOTH (SSL_TFLAG_CLIENT|SSL_TFLAG_SERVER)
103 #define SSL_FLAG_TBL(str, flag) \
104 {str, (int)(sizeof(str) - 1), SSL_TFLAG_BOTH, flag}
105 #define SSL_FLAG_TBL_SRV(str, flag) \
106 {str, (int)(sizeof(str) - 1), SSL_TFLAG_SERVER, flag}
107 #define SSL_FLAG_TBL_CLI(str, flag) \
108 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CLIENT, flag}
109 #define SSL_FLAG_TBL_INV(str, flag) \
110 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_BOTH, flag}
111 #define SSL_FLAG_TBL_SRV_INV(str, flag) \
112 {str, (int)(sizeof(str) - 1), SSL_TFLAG_INV|SSL_TFLAG_SERVER, flag}
113 #define SSL_FLAG_TBL_CERT(str, flag) \
114 {str, (int)(sizeof(str) - 1), SSL_TFLAG_CERT|SSL_TFLAG_BOTH, flag}
116 #define SSL_FLAG_VFY_CLI(str, flag) \
117 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_CLIENT, flag}
118 #define SSL_FLAG_VFY_SRV(str, flag) \
119 {str, (int)(sizeof(str) - 1), SSL_TFLAG_VFY | SSL_TFLAG_SERVER, flag}
122 * Opaque structure containing SSL configuration context.
125 struct ssl_conf_ctx_st {
127 * Various flags indicating (among other things) which options we will
131 /* Prefix and length of commands */
134 /* SSL_CTX or SSL structure to perform operations on */
137 /* Pointer to SSL or SSL_CTX options field or NULL if none */
139 /* Certificate filenames for each type */
140 char *cert_filename[SSL_PKEY_NUM];
141 /* Pointer to SSL or SSL_CTX cert_flags or NULL if none */
142 uint32_t *pcert_flags;
143 /* Pointer to SSL or SSL_CTX verify_mode or NULL if none */
144 uint32_t *pvfy_flags;
145 /* Current flag table being worked on */
146 const ssl_flag_tbl *tbl;
149 /* Client CA names */
150 STACK_OF(X509_NAME) *canames;
153 static void ssl_set_option(SSL_CONF_CTX *cctx, unsigned int name_flags,
154 unsigned long option_value, int onoff)
157 if (cctx->poptions == NULL)
159 if (name_flags & SSL_TFLAG_INV)
161 switch (name_flags & SSL_TFLAG_TYPE_MASK) {
164 pflags = cctx->pcert_flags;
168 pflags = cctx->pvfy_flags;
171 case SSL_TFLAG_OPTION:
172 pflags = cctx->poptions;
180 *pflags |= option_value;
182 *pflags &= ~option_value;
185 static int ssl_match_option(SSL_CONF_CTX *cctx, const ssl_flag_tbl *tbl,
186 const char *name, int namelen, int onoff)
188 /* If name not relevant for context skip */
189 if (!(cctx->flags & tbl->name_flags & SSL_TFLAG_BOTH))
192 if (strcmp(tbl->name, name))
194 } else if (tbl->namelen != namelen
195 || strncasecmp(tbl->name, name, namelen))
197 ssl_set_option(cctx, tbl->name_flags, tbl->option_value, onoff);
201 static int ssl_set_option_list(const char *elem, int len, void *usr)
203 SSL_CONF_CTX *cctx = usr;
205 const ssl_flag_tbl *tbl;
208 * len == -1 indicates not being called in list context, just for single
209 * command line switches, so don't allow +, -.
218 } else if (*elem == '-') {
224 for (i = 0, tbl = cctx->tbl; i < cctx->ntbl; i++, tbl++) {
225 if (ssl_match_option(cctx, tbl, elem, len, onoff))
231 /* Set supported signature algorithms */
232 static int cmd_SignatureAlgorithms(SSL_CONF_CTX *cctx, const char *value)
236 rv = SSL_set1_sigalgs_list(cctx->ssl, value);
237 /* NB: ctx == NULL performs syntax checking only */
239 rv = SSL_CTX_set1_sigalgs_list(cctx->ctx, value);
243 /* Set supported client signature algorithms */
244 static int cmd_ClientSignatureAlgorithms(SSL_CONF_CTX *cctx,
249 rv = SSL_set1_client_sigalgs_list(cctx->ssl, value);
250 /* NB: ctx == NULL performs syntax checking only */
252 rv = SSL_CTX_set1_client_sigalgs_list(cctx->ctx, value);
256 static int cmd_Curves(SSL_CONF_CTX *cctx, const char *value)
260 rv = SSL_set1_curves_list(cctx->ssl, value);
261 /* NB: ctx == NULL performs syntax checking only */
263 rv = SSL_CTX_set1_curves_list(cctx->ctx, value);
267 #ifndef OPENSSL_NO_EC
268 /* ECDH temporary parameters */
269 static int cmd_ECDHParameters(SSL_CONF_CTX *cctx, const char *value)
271 int onoff = -1, rv = 1;
272 if (cctx->flags & SSL_CONF_FLAG_FILE) {
281 if (strcasecmp(value, "automatic") == 0) {
284 } else if (onoff != -1)
286 } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
287 if (strcmp(value, "auto") == 0)
293 rv = SSL_CTX_set_ecdh_auto(cctx->ctx, onoff);
295 rv = SSL_set_ecdh_auto(cctx->ssl, onoff);
299 nid = EC_curve_nist2nid(value);
300 if (nid == NID_undef)
301 nid = OBJ_sn2nid(value);
304 ecdh = EC_KEY_new_by_curve_name(nid);
308 rv = SSL_CTX_set_tmp_ecdh(cctx->ctx, ecdh);
310 rv = SSL_set_tmp_ecdh(cctx->ssl, ecdh);
317 static int cmd_CipherString(SSL_CONF_CTX *cctx, const char *value)
321 rv = SSL_CTX_set_cipher_list(cctx->ctx, value);
323 rv = SSL_set_cipher_list(cctx->ssl, value);
327 static int cmd_Protocol(SSL_CONF_CTX *cctx, const char *value)
329 static const ssl_flag_tbl ssl_protocol_list[] = {
330 SSL_FLAG_TBL_INV("ALL", SSL_OP_NO_SSL_MASK),
331 SSL_FLAG_TBL_INV("SSLv2", SSL_OP_NO_SSLv2),
332 SSL_FLAG_TBL_INV("SSLv3", SSL_OP_NO_SSLv3),
333 SSL_FLAG_TBL_INV("TLSv1", SSL_OP_NO_TLSv1),
334 SSL_FLAG_TBL_INV("TLSv1.1", SSL_OP_NO_TLSv1_1),
335 SSL_FLAG_TBL_INV("TLSv1.2", SSL_OP_NO_TLSv1_2)
337 cctx->tbl = ssl_protocol_list;
338 cctx->ntbl = OSSL_NELEM(ssl_protocol_list);
339 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
342 static int cmd_Options(SSL_CONF_CTX *cctx, const char *value)
344 static const ssl_flag_tbl ssl_option_list[] = {
345 SSL_FLAG_TBL_INV("SessionTicket", SSL_OP_NO_TICKET),
346 SSL_FLAG_TBL_INV("EmptyFragments",
347 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS),
348 SSL_FLAG_TBL("Bugs", SSL_OP_ALL),
349 SSL_FLAG_TBL_INV("Compression", SSL_OP_NO_COMPRESSION),
350 SSL_FLAG_TBL_SRV("ServerPreference", SSL_OP_CIPHER_SERVER_PREFERENCE),
351 SSL_FLAG_TBL_SRV("NoResumptionOnRenegotiation",
352 SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION),
353 SSL_FLAG_TBL_SRV("DHSingle", SSL_OP_SINGLE_DH_USE),
354 SSL_FLAG_TBL_SRV("ECDHSingle", SSL_OP_SINGLE_ECDH_USE),
355 SSL_FLAG_TBL("UnsafeLegacyRenegotiation",
356 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION),
360 cctx->tbl = ssl_option_list;
361 cctx->ntbl = OSSL_NELEM(ssl_option_list);
362 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
365 static int cmd_VerifyMode(SSL_CONF_CTX *cctx, const char *value)
367 static const ssl_flag_tbl ssl_vfy_list[] = {
368 SSL_FLAG_VFY_CLI("Peer", SSL_VERIFY_PEER),
369 SSL_FLAG_VFY_SRV("Request", SSL_VERIFY_PEER),
370 SSL_FLAG_VFY_SRV("Require",
371 SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT),
372 SSL_FLAG_VFY_SRV("Once", SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE)
376 cctx->tbl = ssl_vfy_list;
377 cctx->ntbl = OSSL_NELEM(ssl_vfy_list);
378 return CONF_parse_list(value, ',', 1, ssl_set_option_list, cctx);
381 static int cmd_Certificate(SSL_CONF_CTX *cctx, const char *value)
386 rv = SSL_CTX_use_certificate_chain_file(cctx->ctx, value);
390 rv = SSL_use_certificate_chain_file(cctx->ssl, value);
393 if (rv > 0 && c && cctx->flags & SSL_CONF_FLAG_REQUIRE_PRIVATE) {
394 char **pfilename = &cctx->cert_filename[c->key - c->pkeys];
395 OPENSSL_free(*pfilename);
396 *pfilename = BUF_strdup(value);
404 static int cmd_PrivateKey(SSL_CONF_CTX *cctx, const char *value)
407 if (!(cctx->flags & SSL_CONF_FLAG_CERTIFICATE))
410 rv = SSL_CTX_use_PrivateKey_file(cctx->ctx, value, SSL_FILETYPE_PEM);
412 rv = SSL_use_PrivateKey_file(cctx->ssl, value, SSL_FILETYPE_PEM);
416 static int cmd_ServerInfoFile(SSL_CONF_CTX *cctx, const char *value)
420 rv = SSL_CTX_use_serverinfo_file(cctx->ctx, value);
424 static int do_store(SSL_CONF_CTX *cctx,
425 const char *CAfile, const char *CApath, int verify_store)
430 cert = cctx->ctx->cert;
432 cert = cctx->ssl->cert;
435 st = verify_store ? &cert->verify_store : &cert->chain_store;
437 *st = X509_STORE_new();
441 return X509_STORE_load_locations(*st, CAfile, CApath) > 0;
444 static int cmd_ChainCAPath(SSL_CONF_CTX *cctx, const char *value)
446 return do_store(cctx, NULL, value, 0);
449 static int cmd_ChainCAFile(SSL_CONF_CTX *cctx, const char *value)
451 return do_store(cctx, value, NULL, 0);
454 static int cmd_VerifyCAPath(SSL_CONF_CTX *cctx, const char *value)
456 return do_store(cctx, NULL, value, 1);
459 static int cmd_VerifyCAFile(SSL_CONF_CTX *cctx, const char *value)
461 return do_store(cctx, value, NULL, 1);
464 static int cmd_ClientCAFile(SSL_CONF_CTX *cctx, const char *value)
466 if (cctx->canames == NULL)
467 cctx->canames = sk_X509_NAME_new_null();
468 if (cctx->canames == NULL)
470 return SSL_add_file_cert_subjects_to_stack(cctx->canames, value);
473 static int cmd_ClientCAPath(SSL_CONF_CTX *cctx, const char *value)
475 if (cctx->canames == NULL)
476 cctx->canames = sk_X509_NAME_new_null();
477 if (cctx->canames == NULL)
479 return SSL_add_dir_cert_subjects_to_stack(cctx->canames, value);
482 #ifndef OPENSSL_NO_DH
483 static int cmd_DHParameters(SSL_CONF_CTX *cctx, const char *value)
488 if (cctx->ctx || cctx->ssl) {
489 in = BIO_new(BIO_s_file_internal());
492 if (BIO_read_filename(in, value) <= 0)
494 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
500 rv = SSL_CTX_set_tmp_dh(cctx->ctx, dh);
502 rv = SSL_set_tmp_dh(cctx->ssl, dh);
510 int (*cmd) (SSL_CONF_CTX *cctx, const char *value);
511 const char *str_file;
512 const char *str_cmdline;
513 unsigned short flags;
514 unsigned short value_type;
517 /* Table of supported parameters */
519 #define SSL_CONF_CMD(name, cmdopt, flags, type) \
520 {cmd_##name, #name, cmdopt, flags, type}
522 #define SSL_CONF_CMD_STRING(name, cmdopt, flags) \
523 SSL_CONF_CMD(name, cmdopt, flags, SSL_CONF_TYPE_STRING)
525 #define SSL_CONF_CMD_SWITCH(name, flags) \
526 {0, NULL, name, flags, SSL_CONF_TYPE_NONE}
528 /* See apps/apps.h if you change this table. */
529 static const ssl_conf_cmd_tbl ssl_conf_cmds[] = {
530 SSL_CONF_CMD_SWITCH("no_ssl3", 0),
531 SSL_CONF_CMD_SWITCH("no_tls1", 0),
532 SSL_CONF_CMD_SWITCH("no_tls1_1", 0),
533 SSL_CONF_CMD_SWITCH("no_tls1_2", 0),
534 SSL_CONF_CMD_SWITCH("bugs", 0),
535 SSL_CONF_CMD_SWITCH("no_comp", 0),
536 SSL_CONF_CMD_SWITCH("ecdh_single", SSL_CONF_FLAG_SERVER),
537 SSL_CONF_CMD_SWITCH("no_ticket", 0),
538 SSL_CONF_CMD_SWITCH("serverpref", SSL_CONF_FLAG_SERVER),
539 SSL_CONF_CMD_SWITCH("legacy_renegotiation", 0),
540 SSL_CONF_CMD_SWITCH("legacy_server_connect", SSL_CONF_FLAG_SERVER),
541 SSL_CONF_CMD_SWITCH("no_resumption_on_reneg", SSL_CONF_FLAG_SERVER),
542 SSL_CONF_CMD_SWITCH("no_legacy_server_connect", SSL_CONF_FLAG_SERVER),
543 SSL_CONF_CMD_SWITCH("strict", 0),
544 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
545 SSL_CONF_CMD_SWITCH("debug_broken_protocol", 0),
547 SSL_CONF_CMD_STRING(SignatureAlgorithms, "sigalgs", 0),
548 SSL_CONF_CMD_STRING(ClientSignatureAlgorithms, "client_sigalgs", 0),
549 SSL_CONF_CMD_STRING(Curves, "curves", 0),
550 #ifndef OPENSSL_NO_EC
551 SSL_CONF_CMD_STRING(ECDHParameters, "named_curve", SSL_CONF_FLAG_SERVER),
553 SSL_CONF_CMD_STRING(CipherString, "cipher", 0),
554 SSL_CONF_CMD_STRING(Protocol, NULL, 0),
555 SSL_CONF_CMD_STRING(Options, NULL, 0),
556 SSL_CONF_CMD_STRING(VerifyMode, NULL, 0),
557 SSL_CONF_CMD(Certificate, "cert", SSL_CONF_FLAG_CERTIFICATE,
559 SSL_CONF_CMD(PrivateKey, "key", SSL_CONF_FLAG_CERTIFICATE,
561 SSL_CONF_CMD(ServerInfoFile, NULL,
562 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
564 SSL_CONF_CMD(ChainCAPath, "chainCApath", SSL_CONF_FLAG_CERTIFICATE,
566 SSL_CONF_CMD(ChainCAFile, "chainCAfile", SSL_CONF_FLAG_CERTIFICATE,
568 SSL_CONF_CMD(VerifyCAPath, "verifyCApath", SSL_CONF_FLAG_CERTIFICATE,
570 SSL_CONF_CMD(VerifyCAFile, "verifyCAfile", SSL_CONF_FLAG_CERTIFICATE,
572 SSL_CONF_CMD(ClientCAFile, NULL,
573 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
575 SSL_CONF_CMD(ClientCAPath, NULL,
576 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
578 #ifndef OPENSSL_NO_DH
579 SSL_CONF_CMD(DHParameters, "dhparam",
580 SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CERTIFICATE,
585 /* Supported switches: must match order of switches in ssl_conf_cmds */
586 static const ssl_switch_tbl ssl_cmd_switches[] = {
587 {SSL_OP_NO_SSLv3, 0}, /* no_ssl3 */
588 {SSL_OP_NO_TLSv1, 0}, /* no_tls1 */
589 {SSL_OP_NO_TLSv1_1, 0}, /* no_tls1_1 */
590 {SSL_OP_NO_TLSv1_2, 0}, /* no_tls1_2 */
591 {SSL_OP_ALL, 0}, /* bugs */
592 {SSL_OP_NO_COMPRESSION, 0}, /* no_comp */
593 {SSL_OP_SINGLE_ECDH_USE, 0}, /* ecdh_single */
594 {SSL_OP_NO_TICKET, 0}, /* no_ticket */
595 {SSL_OP_CIPHER_SERVER_PREFERENCE, 0}, /* serverpref */
596 /* legacy_renegotiation */
597 {SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION, 0},
598 /* legacy_server_connect */
599 {SSL_OP_LEGACY_SERVER_CONNECT, 0},
600 /* no_resumption_on_reneg */
601 {SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION, 0},
602 /* no_legacy_server_connect */
603 {SSL_OP_LEGACY_SERVER_CONNECT, SSL_TFLAG_INV},
604 {SSL_CERT_FLAG_TLS_STRICT, SSL_TFLAG_CERT}, /* strict */
605 #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL
606 {SSL_CERT_FLAG_BROKEN_PROTOCOL, SSL_TFLAG_CERT} /* debug_broken_protocol */
610 static int ssl_conf_cmd_skip_prefix(SSL_CONF_CTX *cctx, const char **pcmd)
614 /* If a prefix is set, check and skip */
616 if (strlen(*pcmd) <= cctx->prefixlen)
618 if (cctx->flags & SSL_CONF_FLAG_CMDLINE &&
619 strncmp(*pcmd, cctx->prefix, cctx->prefixlen))
621 if (cctx->flags & SSL_CONF_FLAG_FILE &&
622 strncasecmp(*pcmd, cctx->prefix, cctx->prefixlen))
624 *pcmd += cctx->prefixlen;
625 } else if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
626 if (**pcmd != '-' || !(*pcmd)[1])
633 /* Determine if a command is allowed according to cctx flags */
634 static int ssl_conf_cmd_allowed(SSL_CONF_CTX *cctx,
635 const ssl_conf_cmd_tbl * t)
637 unsigned int tfl = t->flags;
638 unsigned int cfl = cctx->flags;
639 if ((tfl & SSL_CONF_FLAG_SERVER) && !(cfl & SSL_CONF_FLAG_SERVER))
641 if ((tfl & SSL_CONF_FLAG_CLIENT) && !(cfl & SSL_CONF_FLAG_CLIENT))
643 if ((tfl & SSL_CONF_FLAG_CERTIFICATE)
644 && !(cfl & SSL_CONF_FLAG_CERTIFICATE))
649 static const ssl_conf_cmd_tbl *ssl_conf_cmd_lookup(SSL_CONF_CTX *cctx,
652 const ssl_conf_cmd_tbl *t;
657 /* Look for matching parameter name in table */
658 for (i = 0, t = ssl_conf_cmds; i < OSSL_NELEM(ssl_conf_cmds); i++, t++) {
659 if (ssl_conf_cmd_allowed(cctx, t)) {
660 if (cctx->flags & SSL_CONF_FLAG_CMDLINE) {
661 if (t->str_cmdline && strcmp(t->str_cmdline, cmd) == 0)
664 if (cctx->flags & SSL_CONF_FLAG_FILE) {
665 if (t->str_file && strcasecmp(t->str_file, cmd) == 0)
673 static int ctrl_switch_option(SSL_CONF_CTX *cctx,
674 const ssl_conf_cmd_tbl * cmd)
676 /* Find index of command in table */
677 size_t idx = cmd - ssl_conf_cmds;
678 const ssl_switch_tbl *scmd;
679 /* Sanity check index */
680 if (idx >= OSSL_NELEM(ssl_cmd_switches))
682 /* Obtain switches entry with same index */
683 scmd = ssl_cmd_switches + idx;
684 ssl_set_option(cctx, scmd->name_flags, scmd->option_value, 1);
688 int SSL_CONF_cmd(SSL_CONF_CTX *cctx, const char *cmd, const char *value)
690 const ssl_conf_cmd_tbl *runcmd;
692 SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_INVALID_NULL_CMD_NAME);
696 if (!ssl_conf_cmd_skip_prefix(cctx, &cmd))
699 runcmd = ssl_conf_cmd_lookup(cctx, cmd);
703 if (runcmd->value_type == SSL_CONF_TYPE_NONE) {
704 return ctrl_switch_option(cctx, runcmd);
708 rv = runcmd->cmd(cctx, value);
713 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) {
714 SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_BAD_VALUE);
715 ERR_add_error_data(4, "cmd=", cmd, ", value=", value);
720 if (cctx->flags & SSL_CONF_FLAG_SHOW_ERRORS) {
721 SSLerr(SSL_F_SSL_CONF_CMD, SSL_R_UNKNOWN_CMD_NAME);
722 ERR_add_error_data(2, "cmd=", cmd);
728 int SSL_CONF_cmd_argv(SSL_CONF_CTX *cctx, int *pargc, char ***pargv)
731 const char *arg = NULL, *argn;
732 if (pargc && *pargc == 0)
734 if (!pargc || *pargc > 0)
738 if (!pargc || *pargc > 1)
742 cctx->flags &= ~SSL_CONF_FLAG_FILE;
743 cctx->flags |= SSL_CONF_FLAG_CMDLINE;
744 rv = SSL_CONF_cmd(cctx, arg, argn);
746 /* Success: update pargc, pargv */
752 /* Unknown switch: indicate no arguments processed */
755 /* Some error occurred processing command, return fatal error */
761 int SSL_CONF_cmd_value_type(SSL_CONF_CTX *cctx, const char *cmd)
763 if (ssl_conf_cmd_skip_prefix(cctx, &cmd)) {
764 const ssl_conf_cmd_tbl *runcmd;
765 runcmd = ssl_conf_cmd_lookup(cctx, cmd);
767 return runcmd->value_type;
769 return SSL_CONF_TYPE_UNKNOWN;
772 SSL_CONF_CTX *SSL_CONF_CTX_new(void)
774 SSL_CONF_CTX *ret = OPENSSL_malloc(sizeof(*ret));
783 ret->poptions = NULL;
784 ret->pcert_flags = NULL;
785 ret->pvfy_flags = NULL;
788 for (i = 0; i < SSL_PKEY_NUM; i++)
789 ret->cert_filename[i] = NULL;
795 int SSL_CONF_CTX_finish(SSL_CONF_CTX *cctx)
797 /* See if any certificates are missing private keys */
804 if (c && cctx->flags & SSL_CONF_FLAG_REQUIRE_PRIVATE) {
805 for (i = 0; i < SSL_PKEY_NUM; i++) {
806 const char *p = cctx->cert_filename[i];
808 * If missing private key try to load one from certificate file
810 if (p && !c->pkeys[i].privatekey) {
811 if (!cmd_PrivateKey(cctx, p))
818 SSL_set_client_CA_list(cctx->ssl, cctx->canames);
820 SSL_CTX_set_client_CA_list(cctx->ctx, cctx->canames);
822 sk_X509_NAME_pop_free(cctx->canames, X509_NAME_free);
823 cctx->canames = NULL;
828 void SSL_CONF_CTX_free(SSL_CONF_CTX *cctx)
832 for (i = 0; i < SSL_PKEY_NUM; i++)
833 OPENSSL_free(cctx->cert_filename[i]);
834 OPENSSL_free(cctx->prefix);
835 sk_X509_NAME_pop_free(cctx->canames, X509_NAME_free);
840 unsigned int SSL_CONF_CTX_set_flags(SSL_CONF_CTX *cctx, unsigned int flags)
842 cctx->flags |= flags;
846 unsigned int SSL_CONF_CTX_clear_flags(SSL_CONF_CTX *cctx, unsigned int flags)
848 cctx->flags &= ~flags;
852 int SSL_CONF_CTX_set1_prefix(SSL_CONF_CTX *cctx, const char *pre)
856 tmp = BUF_strdup(pre);
860 OPENSSL_free(cctx->prefix);
863 cctx->prefixlen = strlen(tmp);
869 void SSL_CONF_CTX_set_ssl(SSL_CONF_CTX *cctx, SSL *ssl)
874 cctx->poptions = &ssl->options;
875 cctx->pcert_flags = &ssl->cert->cert_flags;
876 cctx->pvfy_flags = &ssl->verify_mode;
878 cctx->poptions = NULL;
879 cctx->pcert_flags = NULL;
880 cctx->pvfy_flags = NULL;
884 void SSL_CONF_CTX_set_ssl_ctx(SSL_CONF_CTX *cctx, SSL_CTX *ctx)
889 cctx->poptions = &ctx->options;
890 cctx->pcert_flags = &ctx->cert->cert_flags;
891 cctx->pvfy_flags = &ctx->verify_mode;
893 cctx->poptions = NULL;
894 cctx->pcert_flags = NULL;
895 cctx->pvfy_flags = NULL;