1 /* tls.c - Handle tls/ssl. */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2009 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
16 /* ACKNOWLEDGEMENTS: restructured by Howard Chu.
20 #include "ldap_config.h"
24 #include <ac/stdlib.h>
26 #include <ac/socket.h>
27 #include <ac/string.h>
30 #include <ac/unistd.h>
32 #include <ac/dirent.h>
41 #include <ldap_pvt_thread.h>
44 static tls_impl *tls_imp = &ldap_int_tls_impl;
45 #define HAS_TLS( sb ) ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO, \
46 (void *)tls_imp->ti_sbio )
50 /* RFC2459 minimum required set of supported attribute types
53 typedef struct oid_name {
58 static oid_name oids[] = {
59 { BER_BVC("2.5.4.3"), BER_BVC("cn") },
60 { BER_BVC("2.5.4.4"), BER_BVC("sn") },
61 { BER_BVC("2.5.4.6"), BER_BVC("c") },
62 { BER_BVC("2.5.4.7"), BER_BVC("l") },
63 { BER_BVC("2.5.4.8"), BER_BVC("st") },
64 { BER_BVC("2.5.4.10"), BER_BVC("o") },
65 { BER_BVC("2.5.4.11"), BER_BVC("ou") },
66 { BER_BVC("2.5.4.12"), BER_BVC("title") },
67 { BER_BVC("2.5.4.41"), BER_BVC("name") },
68 { BER_BVC("2.5.4.42"), BER_BVC("givenName") },
69 { BER_BVC("2.5.4.43"), BER_BVC("initials") },
70 { BER_BVC("2.5.4.44"), BER_BVC("generationQualifier") },
71 { BER_BVC("2.5.4.46"), BER_BVC("dnQualifier") },
72 { BER_BVC("1.2.840.113549.1.9.1"), BER_BVC("email") },
73 { BER_BVC("0.9.2342.19200300.100.1.25"), BER_BVC("dc") },
74 { BER_BVNULL, BER_BVNULL }
80 ldap_pvt_tls_ctx_free ( void *c )
83 tls_imp->ti_ctx_free( c );
87 tls_ctx_ref( tls_ctx *ctx )
91 tls_imp->ti_ctx_ref( ctx );
96 * an extra mutex for the default ctx.
98 static ldap_pvt_thread_mutex_t tls_def_ctx_mutex;
102 ldap_int_tls_destroy( struct ldapoptions *lo )
104 if ( lo->ldo_tls_ctx ) {
105 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
106 lo->ldo_tls_ctx = NULL;
109 if ( lo->ldo_tls_certfile ) {
110 LDAP_FREE( lo->ldo_tls_certfile );
111 lo->ldo_tls_certfile = NULL;
113 if ( lo->ldo_tls_keyfile ) {
114 LDAP_FREE( lo->ldo_tls_keyfile );
115 lo->ldo_tls_keyfile = NULL;
117 if ( lo->ldo_tls_dhfile ) {
118 LDAP_FREE( lo->ldo_tls_dhfile );
119 lo->ldo_tls_dhfile = NULL;
121 if ( lo->ldo_tls_cacertfile ) {
122 LDAP_FREE( lo->ldo_tls_cacertfile );
123 lo->ldo_tls_cacertfile = NULL;
125 if ( lo->ldo_tls_cacertdir ) {
126 LDAP_FREE( lo->ldo_tls_cacertdir );
127 lo->ldo_tls_cacertdir = NULL;
129 if ( lo->ldo_tls_ciphersuite ) {
130 LDAP_FREE( lo->ldo_tls_ciphersuite );
131 lo->ldo_tls_ciphersuite = NULL;
133 if ( lo->ldo_tls_crlfile ) {
134 LDAP_FREE( lo->ldo_tls_crlfile );
135 lo->ldo_tls_crlfile = NULL;
140 * Tear down the TLS subsystem. Should only be called once.
143 ldap_pvt_tls_destroy( void )
145 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
147 ldap_int_tls_destroy( lo );
149 tls_imp->ti_tls_destroy();
153 * Initialize a particular TLS implementation.
154 * Called once per implementation.
157 tls_init(tls_impl *impl )
159 static int tls_initialized = 0;
161 if ( !tls_initialized++ ) {
162 #ifdef LDAP_R_COMPILE
163 ldap_pvt_thread_mutex_init( &tls_def_ctx_mutex );
167 if ( impl->ti_inited++ ) return 0;
169 #ifdef LDAP_R_COMPILE
172 return impl->ti_tls_init();
176 * Initialize TLS subsystem. Called once per implementation.
179 ldap_pvt_tls_init( void )
181 return tls_init( tls_imp );
185 * initialize a new TLS context
188 ldap_int_tls_init_ctx( struct ldapoptions *lo, int is_server )
191 tls_impl *ti = tls_imp;
192 struct ldaptls lts = lo->ldo_tls_info;
194 if ( lo->ldo_tls_ctx )
199 if ( is_server && !lts.lt_certfile && !lts.lt_keyfile &&
200 !lts.lt_cacertfile && !lts.lt_cacertdir ) {
201 /* minimum configuration not provided */
202 return LDAP_NOT_SUPPORTED;
206 /* This ASCII/EBCDIC handling is a real pain! */
207 if ( lts.lt_ciphersuite ) {
208 lts.lt_ciphersuite = LDAP_STRDUP( lts.lt_ciphersuite );
209 __atoe( lts.lt_ciphersuite );
211 if ( lts.lt_cacertfile ) {
212 lts.lt_cacertfile = LDAP_STRDUP( lts.lt_cacertfile );
213 __atoe( lts.lt_cacertfile );
215 if ( lts.lt_certfile ) {
216 lts.lt_certfile = LDAP_STRDUP( lts.lt_certfile );
217 __atoe( lts.lt_certfile );
219 if ( lts.lt_keyfile ) {
220 lts.lt_keyfile = LDAP_STRDUP( lts.lt_keyfile );
221 __atoe( lts.lt_keyfile );
223 if ( lts.lt_crlfile ) {
224 lts.lt_crlfile = LDAP_STRDUP( lts.lt_crlfile );
225 __atoe( lts.lt_crlfile );
227 if ( lts.lt_cacertdir ) {
228 lts.lt_cacertdir = LDAP_STRDUP( lts.lt_cacertdir );
229 __atoe( lts.lt_cacertdir );
231 if ( lts.lt_dhfile ) {
232 lts.lt_dhfile = LDAP_STRDUP( lts.lt_dhfile );
233 __atoe( lts.lt_dhfile );
236 lo->ldo_tls_ctx = ti->ti_ctx_new( lo );
237 if ( lo->ldo_tls_ctx == NULL ) {
238 Debug( LDAP_DEBUG_ANY,
239 "TLS: could not allocate default ctx.\n",
245 rc = ti->ti_ctx_init( lo, <s, is_server );
248 if ( rc < 0 && lo->ldo_tls_ctx != NULL ) {
249 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
250 lo->ldo_tls_ctx = NULL;
253 LDAP_FREE( lts.lt_ciphersuite );
254 LDAP_FREE( lts.lt_cacertfile );
255 LDAP_FREE( lts.lt_certfile );
256 LDAP_FREE( lts.lt_keyfile );
257 LDAP_FREE( lts.lt_crlfile );
258 LDAP_FREE( lts.lt_cacertdir );
259 LDAP_FREE( lts.lt_dhfile );
265 * initialize the default context
268 ldap_pvt_tls_init_def_ctx( int is_server )
270 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
272 #ifdef LDAP_R_COMPILE
273 ldap_pvt_thread_mutex_lock( &tls_def_ctx_mutex );
275 rc = ldap_int_tls_init_ctx( lo, is_server );
276 #ifdef LDAP_R_COMPILE
277 ldap_pvt_thread_mutex_unlock( &tls_def_ctx_mutex );
283 alloc_handle( void *ctx_arg, int is_server )
291 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
292 if ( ldap_pvt_tls_init_def_ctx( is_server ) < 0 ) return NULL;
293 ctx = lo->ldo_tls_ctx;
296 ssl = tls_imp->ti_session_new( ctx, is_server );
298 Debug( LDAP_DEBUG_ANY,"TLS: can't create ssl handle.\n",0,0,0);
305 update_flags( Sockbuf *sb, tls_session * ssl, int rc )
307 sb->sb_trans_needs_read = 0;
308 sb->sb_trans_needs_write = 0;
310 return tls_imp->ti_session_upflags( sb, ssl, rc );
314 * Call this to do a TLS connect on a sockbuf. ctx_arg can be
315 * a SSL_CTX * or NULL, in which case the default ctx is used.
319 * 0 - Success. Connection is ready for communication.
320 * <0 - Error. Can't create a TLS stream.
321 * >0 - Partial success.
322 * Do a select (using information from lber_pvt_sb_needs_{read,write}
327 ldap_int_tls_connect( LDAP *ld, LDAPConn *conn )
329 Sockbuf *sb = conn->lconn_sb;
331 tls_session *ssl = NULL;
333 if ( HAS_TLS( sb )) {
334 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
336 struct ldapoptions *lo;
339 ctx = ld->ld_options.ldo_tls_ctx;
341 ssl = alloc_handle( ctx, 0 );
343 if ( ssl == NULL ) return -1;
346 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
347 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
349 ber_sockbuf_add_io( sb, tls_imp->ti_sbio,
350 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
352 lo = LDAP_INT_GLOBAL_OPT();
354 ctx = lo->ldo_tls_ctx;
355 ld->ld_options.ldo_tls_ctx = ctx;
358 if ( ld->ld_options.ldo_tls_connect_cb )
359 ld->ld_options.ldo_tls_connect_cb( ld, ssl, ctx,
360 ld->ld_options.ldo_tls_connect_arg );
361 if ( lo && lo->ldo_tls_connect_cb && lo->ldo_tls_connect_cb !=
362 ld->ld_options.ldo_tls_connect_cb )
363 lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg );
366 err = tls_imp->ti_session_connect( ld, ssl );
369 errno = WSAGetLastError();
375 if ( update_flags( sb, ssl, err )) {
379 msg = tls_imp->ti_session_errmsg( err, buf, sizeof(buf) );
381 if ( ld->ld_error ) {
382 LDAP_FREE( ld->ld_error );
384 ld->ld_error = LDAP_STRDUP( msg );
386 if ( ld->ld_error ) __etoa(ld->ld_error);
390 Debug( LDAP_DEBUG_ANY,"TLS: can't connect: %s.\n",
391 ld->ld_error ? ld->ld_error : "" ,0,0);
393 ber_sockbuf_remove_io( sb, tls_imp->ti_sbio,
394 LBER_SBIOD_LEVEL_TRANSPORT );
396 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
397 LBER_SBIOD_LEVEL_TRANSPORT );
406 * Call this to do a TLS accept on a sockbuf.
407 * Everything else is the same as with tls_connect.
410 ldap_pvt_tls_accept( Sockbuf *sb, void *ctx_arg )
413 tls_session *ssl = NULL;
415 if ( HAS_TLS( sb )) {
416 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
418 ssl = alloc_handle( ctx_arg, 1 );
419 if ( ssl == NULL ) return -1;
422 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
423 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
425 ber_sockbuf_add_io( sb, tls_imp->ti_sbio,
426 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
429 err = tls_imp->ti_session_accept( ssl );
432 errno = WSAGetLastError();
438 if ( update_flags( sb, ssl, err )) return 1;
440 Debug( LDAP_DEBUG_ANY,"TLS: can't accept: %s.\n",
441 tls_imp->ti_session_errmsg( err, buf, sizeof(buf) ),0,0 );
443 ber_sockbuf_remove_io( sb, tls_imp->ti_sbio,
444 LBER_SBIOD_LEVEL_TRANSPORT );
446 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
447 LBER_SBIOD_LEVEL_TRANSPORT );
455 ldap_pvt_tls_inplace ( Sockbuf *sb )
457 return HAS_TLS( sb ) ? 1 : 0;
461 ldap_tls_inplace( LDAP *ld )
465 if ( ld->ld_defconn && ld->ld_defconn->lconn_sb ) {
466 sb = ld->ld_defconn->lconn_sb;
468 } else if ( ld->ld_sb ) {
475 return ldap_pvt_tls_inplace( sb );
479 ldap_pvt_tls_get_peer_dn( void *s, struct berval *dn,
480 LDAPDN_rewrite_dummy *func, unsigned flags )
482 tls_session *session = s;
486 rc = tls_imp->ti_session_peer_dn( session, &bvdn );
489 rc = ldap_X509dn2bv( &bvdn, dn,
490 (LDAPDN_rewrite_func *)func, flags);
495 ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in )
497 tls_session *session = s;
499 return tls_imp->ti_session_chkhost( ld, session, name_in );
503 ldap_int_tls_config( LDAP *ld, int option, const char *arg )
508 case LDAP_OPT_X_TLS_CACERTFILE:
509 case LDAP_OPT_X_TLS_CACERTDIR:
510 case LDAP_OPT_X_TLS_CERTFILE:
511 case LDAP_OPT_X_TLS_KEYFILE:
512 case LDAP_OPT_X_TLS_RANDOM_FILE:
513 case LDAP_OPT_X_TLS_CIPHER_SUITE:
514 case LDAP_OPT_X_TLS_DHFILE:
515 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
516 return ldap_pvt_tls_set_option( ld, option, (void *) arg );
518 case LDAP_OPT_X_TLS_REQUIRE_CERT:
521 if ( strcasecmp( arg, "never" ) == 0 ) {
522 i = LDAP_OPT_X_TLS_NEVER ;
524 } else if ( strcasecmp( arg, "demand" ) == 0 ) {
525 i = LDAP_OPT_X_TLS_DEMAND ;
527 } else if ( strcasecmp( arg, "allow" ) == 0 ) {
528 i = LDAP_OPT_X_TLS_ALLOW ;
530 } else if ( strcasecmp( arg, "try" ) == 0 ) {
531 i = LDAP_OPT_X_TLS_TRY ;
533 } else if ( ( strcasecmp( arg, "hard" ) == 0 ) ||
534 ( strcasecmp( arg, "on" ) == 0 ) ||
535 ( strcasecmp( arg, "yes" ) == 0) ||
536 ( strcasecmp( arg, "true" ) == 0 ) )
538 i = LDAP_OPT_X_TLS_HARD ;
542 return ldap_pvt_tls_set_option( ld, option, &i );
545 case LDAP_OPT_X_TLS_PROTOCOL_MIN: {
548 l = strtol( arg, &next, 10 );
549 if ( l < 0 || l > 0xff || next == arg ||
550 ( *next != '\0' && *next != '.' ) )
555 l = strtol( arg, &next, 10 );
556 if ( l < 0 || l > 0xff || next == arg || *next != '\0' )
560 return ldap_pvt_tls_set_option( ld, option, &i );
562 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
564 if ( strcasecmp( arg, "none" ) == 0 ) {
565 i = LDAP_OPT_X_TLS_CRL_NONE ;
566 } else if ( strcasecmp( arg, "peer" ) == 0 ) {
567 i = LDAP_OPT_X_TLS_CRL_PEER ;
568 } else if ( strcasecmp( arg, "all" ) == 0 ) {
569 i = LDAP_OPT_X_TLS_CRL_ALL ;
572 return ldap_pvt_tls_set_option( ld, option, &i );
580 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
582 struct ldapoptions *lo;
585 assert( LDAP_VALID( ld ) );
587 if( !LDAP_VALID( ld ) ) {
588 return LDAP_OPT_ERROR;
591 lo = &ld->ld_options;
594 /* Get pointer to global option structure */
595 lo = LDAP_INT_GLOBAL_OPT();
597 return LDAP_NO_MEMORY;
603 *(int *)arg = lo->ldo_tls_mode;
605 case LDAP_OPT_X_TLS_CTX:
606 *(void **)arg = lo->ldo_tls_ctx;
607 if ( lo->ldo_tls_ctx ) {
608 tls_ctx_ref( lo->ldo_tls_ctx );
611 case LDAP_OPT_X_TLS_CACERTFILE:
612 *(char **)arg = lo->ldo_tls_cacertfile ?
613 LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL;
615 case LDAP_OPT_X_TLS_CACERTDIR:
616 *(char **)arg = lo->ldo_tls_cacertdir ?
617 LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL;
619 case LDAP_OPT_X_TLS_CERTFILE:
620 *(char **)arg = lo->ldo_tls_certfile ?
621 LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL;
623 case LDAP_OPT_X_TLS_KEYFILE:
624 *(char **)arg = lo->ldo_tls_keyfile ?
625 LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL;
627 case LDAP_OPT_X_TLS_DHFILE:
628 *(char **)arg = lo->ldo_tls_dhfile ?
629 LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL;
631 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
632 *(char **)arg = lo->ldo_tls_crlfile ?
633 LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL;
635 case LDAP_OPT_X_TLS_REQUIRE_CERT:
636 *(int *)arg = lo->ldo_tls_require_cert;
638 #ifdef HAVE_OPENSSL_CRL
639 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
640 *(int *)arg = lo->ldo_tls_crlcheck;
643 case LDAP_OPT_X_TLS_CIPHER_SUITE:
644 *(char **)arg = lo->ldo_tls_ciphersuite ?
645 LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL;
647 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
648 *(int *)arg = lo->ldo_tls_protocol_min;
650 case LDAP_OPT_X_TLS_RANDOM_FILE: /* OpenSSL only */
651 *(char **)arg = lo->ldo_tls_randfile ?
652 LDAP_STRDUP( lo->ldo_tls_randfile ) : NULL;
654 case LDAP_OPT_X_TLS_SSL_CTX: {
657 LDAPConn *conn = ld->ld_defconn;
658 if ( conn != NULL ) {
659 Sockbuf *sb = conn->lconn_sb;
660 retval = ldap_pvt_tls_sb_ctx( sb );
663 *(void **)arg = retval;
666 case LDAP_OPT_X_TLS_CONNECT_CB:
667 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
669 case LDAP_OPT_X_TLS_CONNECT_ARG:
670 *(void **)arg = lo->ldo_tls_connect_arg;
679 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
681 struct ldapoptions *lo;
684 assert( LDAP_VALID( ld ) );
686 if( !LDAP_VALID( ld ) ) {
687 return LDAP_OPT_ERROR;
690 lo = &ld->ld_options;
693 /* Get pointer to global option structure */
694 lo = LDAP_INT_GLOBAL_OPT();
696 return LDAP_NO_MEMORY;
702 if ( !arg ) return -1;
704 switch( *(int *) arg ) {
705 case LDAP_OPT_X_TLS_NEVER:
706 case LDAP_OPT_X_TLS_DEMAND:
707 case LDAP_OPT_X_TLS_ALLOW:
708 case LDAP_OPT_X_TLS_TRY:
709 case LDAP_OPT_X_TLS_HARD:
711 lo->ldo_tls_mode = *(int *)arg;
718 case LDAP_OPT_X_TLS_CTX:
719 if ( lo->ldo_tls_ctx )
720 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
721 lo->ldo_tls_ctx = arg;
722 tls_ctx_ref( lo->ldo_tls_ctx );
724 case LDAP_OPT_X_TLS_CONNECT_CB:
725 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
727 case LDAP_OPT_X_TLS_CONNECT_ARG:
728 lo->ldo_tls_connect_arg = arg;
730 case LDAP_OPT_X_TLS_CACERTFILE:
731 if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile );
732 lo->ldo_tls_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
734 case LDAP_OPT_X_TLS_CACERTDIR:
735 if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir );
736 lo->ldo_tls_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
738 case LDAP_OPT_X_TLS_CERTFILE:
739 if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile );
740 lo->ldo_tls_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
742 case LDAP_OPT_X_TLS_KEYFILE:
743 if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile );
744 lo->ldo_tls_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
746 case LDAP_OPT_X_TLS_DHFILE:
747 if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile );
748 lo->ldo_tls_dhfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
750 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
751 if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile );
752 lo->ldo_tls_crlfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
754 case LDAP_OPT_X_TLS_REQUIRE_CERT:
755 if ( !arg ) return -1;
756 switch( *(int *) arg ) {
757 case LDAP_OPT_X_TLS_NEVER:
758 case LDAP_OPT_X_TLS_DEMAND:
759 case LDAP_OPT_X_TLS_ALLOW:
760 case LDAP_OPT_X_TLS_TRY:
761 case LDAP_OPT_X_TLS_HARD:
762 lo->ldo_tls_require_cert = * (int *) arg;
766 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
767 if ( !arg ) return -1;
768 switch( *(int *) arg ) {
769 case LDAP_OPT_X_TLS_CRL_NONE:
770 case LDAP_OPT_X_TLS_CRL_PEER:
771 case LDAP_OPT_X_TLS_CRL_ALL:
772 lo->ldo_tls_crlcheck = * (int *) arg;
776 case LDAP_OPT_X_TLS_CIPHER_SUITE:
777 if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite );
778 lo->ldo_tls_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
781 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
782 if ( !arg ) return -1;
783 lo->ldo_tls_protocol_min = *(int *)arg;
786 case LDAP_OPT_X_TLS_RANDOM_FILE: /* OpenSSL only */
789 if ( lo->ldo_tls_randfile ) LDAP_FREE (lo->ldo_tls_randfile );
790 lo->ldo_tls_randfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
793 case LDAP_OPT_X_TLS_NEWCTX:
794 if ( !arg ) return -1;
795 if ( lo->ldo_tls_ctx )
796 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
797 lo->ldo_tls_ctx = NULL;
798 return ldap_int_tls_init_ctx( lo, *(int *)arg );
806 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
808 Sockbuf *sb = conn->lconn_sb;
813 host = srv->lud_host;
815 host = conn->lconn_server->lud_host;
818 /* avoid NULL host */
823 (void) tls_init( tls_imp );
826 * Fortunately, the lib uses blocking io...
828 if ( ldap_int_tls_connect( ld, conn ) < 0 ) {
829 ld->ld_errno = LDAP_CONNECT_ERROR;
830 return (ld->ld_errno);
833 ssl = ldap_pvt_tls_sb_ctx( sb );
834 assert( ssl != NULL );
837 * compare host with name(s) in certificate
839 if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER) {
840 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
841 if (ld->ld_errno != LDAP_SUCCESS) {
850 ldap_pvt_tls_sb_ctx( Sockbuf *sb )
854 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
859 ldap_pvt_tls_get_strength( void *s )
861 tls_session *session = s;
863 return tls_imp->ti_session_strength( session );
867 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
869 tls_session *session = s;
870 struct berval der_dn;
873 tls_imp->ti_session_my_dn( session, &der_dn );
874 rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags );
877 #endif /* HAVE_TLS */
880 ldap_start_tls( LDAP *ld,
881 LDAPControl **serverctrls,
882 LDAPControl **clientctrls,
885 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
886 NULL, serverctrls, clientctrls, msgidp );
890 ldap_install_tls( LDAP *ld )
893 return LDAP_NOT_SUPPORTED;
895 if ( ldap_tls_inplace( ld ) ) {
896 return LDAP_LOCAL_ERROR;
899 return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
904 ldap_start_tls_s ( LDAP *ld,
905 LDAPControl **serverctrls,
906 LDAPControl **clientctrls )
909 return LDAP_NOT_SUPPORTED;
913 struct berval *rspdata = NULL;
915 /* XXYYZ: this initiates operation only on default connection! */
917 if ( ldap_tls_inplace( ld ) ) {
918 return LDAP_LOCAL_ERROR;
921 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
922 NULL, serverctrls, clientctrls, &rspoid, &rspdata );
924 if ( rspoid != NULL ) {
928 if ( rspdata != NULL ) {
929 ber_bvfree( rspdata );
932 if ( rc == LDAP_SUCCESS ) {
933 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );
940 /* These tags probably all belong in lber.h, but they're
941 * not normally encountered when processing LDAP, so maybe
942 * they belong somewhere else instead.
945 #define LBER_TAG_OID ((ber_tag_t) 0x06UL)
947 /* Tags for string types used in a DirectoryString.
949 * Note that IA5string is not one of the defined choices for
950 * DirectoryString in X.520, but it gets used for email AVAs.
952 #define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL)
953 #define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL)
954 #define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL)
955 #define LBER_TAG_IA5 ((ber_tag_t) 0x16UL)
956 #define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL)
957 #define LBER_TAG_BMP ((ber_tag_t) 0x1eUL)
960 find_oid( struct berval *oid )
964 for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) {
965 if ( oids[i].oid.bv_len != oid->bv_len ) continue;
966 if ( !strcmp( oids[i].oid.bv_val, oid->bv_val ))
972 /* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
973 * x509_name must be raw DER. If func is non-NULL, the
974 * constructed DN will use numeric OIDs to identify attributeTypes,
975 * and the func() will be invoked to rewrite the DN with the given
978 * Otherwise the DN will use shortNames from a hardcoded table.
981 ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
986 LDAPAVA *newAVA, *baseAVA;
987 BerElementBuffer berbuf;
988 BerElement *ber = (BerElement *)&berbuf;
989 char oids[8192], *oidptr = oids, *oidbuf = NULL;
991 char *dn_end, *rdn_end;
992 int i, navas, nrdns, rc = LDAP_SUCCESS;
993 size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
999 struct berval Oid, Val, oid2, *in = x509_name;
1001 assert( bv != NULL );
1009 /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
1010 * An AVA is a SEQUENCE of attr and value.
1011 * Count the number of AVAs and RDNs
1013 ber_init2( ber, in, LBER_USE_DER );
1014 tag = ber_peek_tag( ber, &len );
1015 if ( tag != LBER_SEQUENCE )
1016 return LDAP_DECODING_ERROR;
1018 for ( tag = ber_first_element( ber, &len, &dn_end );
1020 tag = ber_next_element( ber, &len, dn_end )) {
1022 for ( tag = ber_first_element( ber, &len, &rdn_end );
1023 tag == LBER_SEQUENCE;
1024 tag = ber_next_element( ber, &len, rdn_end )) {
1025 tag = ber_skip_tag( ber, &len );
1026 ber_skip_data( ber, len );
1031 /* Allocate the DN/RDN/AVA stuff as a single block */
1032 dnsize = sizeof(LDAPRDN) * (nrdns+1);
1033 dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
1034 dnsize += sizeof(LDAPAVA) * navas;
1035 if (dnsize > sizeof(ptrs)) {
1036 newDN = (LDAPDN)LDAP_MALLOC( dnsize );
1037 if ( newDN == NULL )
1038 return LDAP_NO_MEMORY;
1040 newDN = (LDAPDN)(char *)ptrs;
1043 newDN[nrdns] = NULL;
1044 newRDN = (LDAPRDN)(newDN + nrdns+1);
1045 newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
1048 /* Rewind and start extracting */
1051 tag = ber_first_element( ber, &len, &dn_end );
1052 for ( i = nrdns - 1; i >= 0; i-- ) {
1055 for ( tag = ber_first_element( ber, &len, &rdn_end );
1056 tag == LBER_SEQUENCE;
1057 tag = ber_next_element( ber, &len, rdn_end )) {
1060 tag = ber_skip_tag( ber, &len );
1061 tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM );
1062 if ( tag != LBER_TAG_OID ) {
1063 rc = LDAP_DECODING_ERROR;
1067 oid2.bv_val = oidptr;
1068 oid2.bv_len = oidrem;
1069 if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) {
1070 rc = LDAP_DECODING_ERROR;
1073 oidname = find_oid( &oid2 );
1075 newAVA->la_attr = oid2;
1076 oidptr += oid2.bv_len + 1;
1077 oidrem -= oid2.bv_len + 1;
1079 /* Running out of OID buffer space? */
1081 if ( oidsize == 0 ) {
1082 oidsize = sizeof(oids) * 2;
1084 oidbuf = LDAP_MALLOC( oidsize );
1085 if ( oidbuf == NULL ) goto nomem;
1089 oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
1090 if ( oidbuf == NULL ) goto nomem;
1091 /* Buffer moved! Fix AVA pointers */
1092 if ( old != oidbuf ) {
1094 long dif = oidbuf - old;
1096 for (a=baseAVA; a<=newAVA; a++){
1097 if (a->la_attr.bv_val >= old &&
1098 a->la_attr.bv_val <= (old + oidsize))
1099 a->la_attr.bv_val += dif;
1102 oidptr = oidbuf + oidsize - oidrem;
1109 newAVA->la_attr = oidname->oid;
1111 newAVA->la_attr = oidname->name;
1114 tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM );
1116 case LBER_TAG_UNIVERSAL:
1117 /* This uses 32-bit ISO 10646-1 */
1118 csize = 4; goto to_utf8;
1120 /* This uses 16-bit ISO 10646-1 */
1121 csize = 2; goto to_utf8;
1122 case LBER_TAG_TELETEX:
1123 /* This uses 8-bit, assume ISO 8859-1 */
1125 to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
1126 newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
1127 if (rc != LDAP_SUCCESS) goto nomem;
1128 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1131 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1132 /* This is already in UTF-8 encoding */
1134 case LBER_TAG_PRINTABLE:
1135 /* These are always 7-bit strings */
1136 newAVA->la_value = Val;
1140 newAVA->la_private = NULL;
1141 newAVA->la_flags = LDAP_AVA_STRING;
1145 tag = ber_next_element( ber, &len, dn_end );
1149 rc = func( newDN, flags, NULL );
1150 if ( rc != LDAP_SUCCESS )
1154 rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
1157 for (;baseAVA < newAVA; baseAVA++) {
1158 if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
1159 LDAP_FREE( baseAVA->la_attr.bv_val );
1160 if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
1161 LDAP_FREE( baseAVA->la_value.bv_val );
1165 LDAP_FREE( oidbuf );
1166 if ( newDN != (LDAPDN)(char *) ptrs )