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 #ifdef HAVE_OPENSSL_CRL
563 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
565 if ( strcasecmp( arg, "none" ) == 0 ) {
566 i = LDAP_OPT_X_TLS_CRL_NONE ;
567 } else if ( strcasecmp( arg, "peer" ) == 0 ) {
568 i = LDAP_OPT_X_TLS_CRL_PEER ;
569 } else if ( strcasecmp( arg, "all" ) == 0 ) {
570 i = LDAP_OPT_X_TLS_CRL_ALL ;
573 return ldap_pvt_tls_set_option( ld, option, &i );
582 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
584 struct ldapoptions *lo;
587 assert( LDAP_VALID( ld ) );
589 if( !LDAP_VALID( ld ) ) {
590 return LDAP_OPT_ERROR;
593 lo = &ld->ld_options;
596 /* Get pointer to global option structure */
597 lo = LDAP_INT_GLOBAL_OPT();
599 return LDAP_NO_MEMORY;
605 *(int *)arg = lo->ldo_tls_mode;
607 case LDAP_OPT_X_TLS_CTX:
608 *(void **)arg = lo->ldo_tls_ctx;
609 if ( lo->ldo_tls_ctx ) {
610 tls_ctx_ref( lo->ldo_tls_ctx );
613 case LDAP_OPT_X_TLS_CACERTFILE:
614 *(char **)arg = lo->ldo_tls_cacertfile ?
615 LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL;
617 case LDAP_OPT_X_TLS_CACERTDIR:
618 *(char **)arg = lo->ldo_tls_cacertdir ?
619 LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL;
621 case LDAP_OPT_X_TLS_CERTFILE:
622 *(char **)arg = lo->ldo_tls_certfile ?
623 LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL;
625 case LDAP_OPT_X_TLS_KEYFILE:
626 *(char **)arg = lo->ldo_tls_keyfile ?
627 LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL;
629 case LDAP_OPT_X_TLS_DHFILE:
630 *(char **)arg = lo->ldo_tls_dhfile ?
631 LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL;
633 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
634 *(char **)arg = lo->ldo_tls_crlfile ?
635 LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL;
637 case LDAP_OPT_X_TLS_REQUIRE_CERT:
638 *(int *)arg = lo->ldo_tls_require_cert;
640 #ifdef HAVE_OPENSSL_CRL
641 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
642 *(int *)arg = lo->ldo_tls_crlcheck;
645 case LDAP_OPT_X_TLS_CIPHER_SUITE:
646 *(char **)arg = lo->ldo_tls_ciphersuite ?
647 LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL;
649 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
650 *(int *)arg = lo->ldo_tls_protocol_min;
652 case LDAP_OPT_X_TLS_RANDOM_FILE:
653 *(char **)arg = lo->ldo_tls_randfile ?
654 LDAP_STRDUP( lo->ldo_tls_randfile ) : NULL;
656 case LDAP_OPT_X_TLS_SSL_CTX: {
659 LDAPConn *conn = ld->ld_defconn;
660 if ( conn != NULL ) {
661 Sockbuf *sb = conn->lconn_sb;
662 retval = ldap_pvt_tls_sb_ctx( sb );
665 *(void **)arg = retval;
668 case LDAP_OPT_X_TLS_CONNECT_CB:
669 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
671 case LDAP_OPT_X_TLS_CONNECT_ARG:
672 *(void **)arg = lo->ldo_tls_connect_arg;
681 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
683 struct ldapoptions *lo;
686 assert( LDAP_VALID( ld ) );
688 if( !LDAP_VALID( ld ) ) {
689 return LDAP_OPT_ERROR;
692 lo = &ld->ld_options;
695 /* Get pointer to global option structure */
696 lo = LDAP_INT_GLOBAL_OPT();
698 return LDAP_NO_MEMORY;
704 if ( !arg ) return -1;
706 switch( *(int *) arg ) {
707 case LDAP_OPT_X_TLS_NEVER:
708 case LDAP_OPT_X_TLS_DEMAND:
709 case LDAP_OPT_X_TLS_ALLOW:
710 case LDAP_OPT_X_TLS_TRY:
711 case LDAP_OPT_X_TLS_HARD:
713 lo->ldo_tls_mode = *(int *)arg;
720 case LDAP_OPT_X_TLS_CTX:
721 if ( lo->ldo_tls_ctx )
722 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
723 lo->ldo_tls_ctx = arg;
724 tls_ctx_ref( lo->ldo_tls_ctx );
726 case LDAP_OPT_X_TLS_CONNECT_CB:
727 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
729 case LDAP_OPT_X_TLS_CONNECT_ARG:
730 lo->ldo_tls_connect_arg = arg;
732 case LDAP_OPT_X_TLS_CACERTFILE:
733 if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile );
734 lo->ldo_tls_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
736 case LDAP_OPT_X_TLS_CACERTDIR:
737 if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir );
738 lo->ldo_tls_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
740 case LDAP_OPT_X_TLS_CERTFILE:
741 if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile );
742 lo->ldo_tls_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
744 case LDAP_OPT_X_TLS_KEYFILE:
745 if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile );
746 lo->ldo_tls_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
748 case LDAP_OPT_X_TLS_DHFILE:
749 if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile );
750 lo->ldo_tls_dhfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
752 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
753 if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile );
754 lo->ldo_tls_crlfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
756 case LDAP_OPT_X_TLS_REQUIRE_CERT:
757 if ( !arg ) return -1;
758 switch( *(int *) arg ) {
759 case LDAP_OPT_X_TLS_NEVER:
760 case LDAP_OPT_X_TLS_DEMAND:
761 case LDAP_OPT_X_TLS_ALLOW:
762 case LDAP_OPT_X_TLS_TRY:
763 case LDAP_OPT_X_TLS_HARD:
764 lo->ldo_tls_require_cert = * (int *) arg;
768 #ifdef HAVE_OPENSSL_CRL
769 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
770 if ( !arg ) return -1;
771 switch( *(int *) arg ) {
772 case LDAP_OPT_X_TLS_CRL_NONE:
773 case LDAP_OPT_X_TLS_CRL_PEER:
774 case LDAP_OPT_X_TLS_CRL_ALL:
775 lo->ldo_tls_crlcheck = * (int *) arg;
780 case LDAP_OPT_X_TLS_CIPHER_SUITE:
781 if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite );
782 lo->ldo_tls_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
785 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
786 if ( !arg ) return -1;
787 lo->ldo_tls_protocol_min = *(int *)arg;
789 case LDAP_OPT_X_TLS_RANDOM_FILE:
792 if ( lo->ldo_tls_randfile ) LDAP_FREE (lo->ldo_tls_randfile );
793 lo->ldo_tls_randfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
795 case LDAP_OPT_X_TLS_NEWCTX:
796 if ( !arg ) return -1;
797 if ( lo->ldo_tls_ctx )
798 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
799 lo->ldo_tls_ctx = NULL;
800 return ldap_int_tls_init_ctx( lo, *(int *)arg );
808 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
810 Sockbuf *sb = conn->lconn_sb;
815 host = srv->lud_host;
817 host = conn->lconn_server->lud_host;
820 /* avoid NULL host */
825 (void) tls_init( tls_imp );
828 * Fortunately, the lib uses blocking io...
830 if ( ldap_int_tls_connect( ld, conn ) < 0 ) {
831 ld->ld_errno = LDAP_CONNECT_ERROR;
832 return (ld->ld_errno);
835 ssl = ldap_pvt_tls_sb_ctx( sb );
836 assert( ssl != NULL );
839 * compare host with name(s) in certificate
841 if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER) {
842 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
843 if (ld->ld_errno != LDAP_SUCCESS) {
852 ldap_pvt_tls_sb_ctx( Sockbuf *sb )
856 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
861 ldap_pvt_tls_get_strength( void *s )
863 tls_session *session = s;
865 return tls_imp->ti_session_strength( session );
869 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
871 tls_session *session = s;
872 struct berval der_dn;
875 tls_imp->ti_session_my_dn( session, &der_dn );
876 rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags );
879 #endif /* HAVE_TLS */
882 ldap_start_tls( LDAP *ld,
883 LDAPControl **serverctrls,
884 LDAPControl **clientctrls,
887 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
888 NULL, serverctrls, clientctrls, msgidp );
892 ldap_install_tls( LDAP *ld )
895 return LDAP_NOT_SUPPORTED;
897 if ( ldap_tls_inplace( ld ) ) {
898 return LDAP_LOCAL_ERROR;
901 return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
906 ldap_start_tls_s ( LDAP *ld,
907 LDAPControl **serverctrls,
908 LDAPControl **clientctrls )
911 return LDAP_NOT_SUPPORTED;
915 struct berval *rspdata = NULL;
917 /* XXYYZ: this initiates operation only on default connection! */
919 if ( ldap_tls_inplace( ld ) ) {
920 return LDAP_LOCAL_ERROR;
923 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
924 NULL, serverctrls, clientctrls, &rspoid, &rspdata );
926 if ( rspoid != NULL ) {
930 if ( rspdata != NULL ) {
931 ber_bvfree( rspdata );
934 if ( rc == LDAP_SUCCESS ) {
935 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );
942 /* These tags probably all belong in lber.h, but they're
943 * not normally encountered when processing LDAP, so maybe
944 * they belong somewhere else instead.
947 #define LBER_TAG_OID ((ber_tag_t) 0x06UL)
949 /* Tags for string types used in a DirectoryString.
951 * Note that IA5string is not one of the defined choices for
952 * DirectoryString in X.520, but it gets used for email AVAs.
954 #define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL)
955 #define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL)
956 #define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL)
957 #define LBER_TAG_IA5 ((ber_tag_t) 0x16UL)
958 #define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL)
959 #define LBER_TAG_BMP ((ber_tag_t) 0x1eUL)
962 find_oid( struct berval *oid )
966 for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) {
967 if ( oids[i].oid.bv_len != oid->bv_len ) continue;
968 if ( !strcmp( oids[i].oid.bv_val, oid->bv_val ))
974 /* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
975 * x509_name must be raw DER. If func is non-NULL, the
976 * constructed DN will use numeric OIDs to identify attributeTypes,
977 * and the func() will be invoked to rewrite the DN with the given
980 * Otherwise the DN will use shortNames from a hardcoded table.
983 ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
988 LDAPAVA *newAVA, *baseAVA;
989 BerElementBuffer berbuf;
990 BerElement *ber = (BerElement *)&berbuf;
991 char oids[8192], *oidptr = oids, *oidbuf = NULL;
993 char *dn_end, *rdn_end;
994 int i, navas, nrdns, rc = LDAP_SUCCESS;
995 size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
1001 struct berval Oid, Val, oid2, *in = x509_name;
1003 assert( bv != NULL );
1011 /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
1012 * An AVA is a SEQUENCE of attr and value.
1013 * Count the number of AVAs and RDNs
1015 ber_init2( ber, in, LBER_USE_DER );
1016 tag = ber_peek_tag( ber, &len );
1017 if ( tag != LBER_SEQUENCE )
1018 return LDAP_DECODING_ERROR;
1020 for ( tag = ber_first_element( ber, &len, &dn_end );
1022 tag = ber_next_element( ber, &len, dn_end )) {
1024 for ( tag = ber_first_element( ber, &len, &rdn_end );
1025 tag == LBER_SEQUENCE;
1026 tag = ber_next_element( ber, &len, rdn_end )) {
1027 tag = ber_skip_tag( ber, &len );
1028 ber_skip_data( ber, len );
1033 /* Allocate the DN/RDN/AVA stuff as a single block */
1034 dnsize = sizeof(LDAPRDN) * (nrdns+1);
1035 dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
1036 dnsize += sizeof(LDAPAVA) * navas;
1037 if (dnsize > sizeof(ptrs)) {
1038 newDN = (LDAPDN)LDAP_MALLOC( dnsize );
1039 if ( newDN == NULL )
1040 return LDAP_NO_MEMORY;
1042 newDN = (LDAPDN)(char *)ptrs;
1045 newDN[nrdns] = NULL;
1046 newRDN = (LDAPRDN)(newDN + nrdns+1);
1047 newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
1050 /* Rewind and start extracting */
1053 tag = ber_first_element( ber, &len, &dn_end );
1054 for ( i = nrdns - 1; i >= 0; i-- ) {
1057 for ( tag = ber_first_element( ber, &len, &rdn_end );
1058 tag == LBER_SEQUENCE;
1059 tag = ber_next_element( ber, &len, rdn_end )) {
1062 tag = ber_skip_tag( ber, &len );
1063 tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM );
1064 if ( tag != LBER_TAG_OID ) {
1065 rc = LDAP_DECODING_ERROR;
1069 oid2.bv_val = oidptr;
1070 oid2.bv_len = oidrem;
1071 if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) {
1072 rc = LDAP_DECODING_ERROR;
1075 oidname = find_oid( &oid2 );
1077 newAVA->la_attr = oid2;
1078 oidptr += oid2.bv_len + 1;
1079 oidrem -= oid2.bv_len + 1;
1081 /* Running out of OID buffer space? */
1083 if ( oidsize == 0 ) {
1084 oidsize = sizeof(oids) * 2;
1086 oidbuf = LDAP_MALLOC( oidsize );
1087 if ( oidbuf == NULL ) goto nomem;
1091 oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
1092 if ( oidbuf == NULL ) goto nomem;
1093 /* Buffer moved! Fix AVA pointers */
1094 if ( old != oidbuf ) {
1096 long dif = oidbuf - old;
1098 for (a=baseAVA; a<=newAVA; a++){
1099 if (a->la_attr.bv_val >= old &&
1100 a->la_attr.bv_val <= (old + oidsize))
1101 a->la_attr.bv_val += dif;
1104 oidptr = oidbuf + oidsize - oidrem;
1111 newAVA->la_attr = oidname->oid;
1113 newAVA->la_attr = oidname->name;
1116 tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM );
1118 case LBER_TAG_UNIVERSAL:
1119 /* This uses 32-bit ISO 10646-1 */
1120 csize = 4; goto to_utf8;
1122 /* This uses 16-bit ISO 10646-1 */
1123 csize = 2; goto to_utf8;
1124 case LBER_TAG_TELETEX:
1125 /* This uses 8-bit, assume ISO 8859-1 */
1127 to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
1128 newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
1129 if (rc != LDAP_SUCCESS) goto nomem;
1130 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1133 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1134 /* This is already in UTF-8 encoding */
1136 case LBER_TAG_PRINTABLE:
1137 /* These are always 7-bit strings */
1138 newAVA->la_value = Val;
1142 newAVA->la_private = NULL;
1143 newAVA->la_flags = LDAP_AVA_STRING;
1147 tag = ber_next_element( ber, &len, dn_end );
1151 rc = func( newDN, flags, NULL );
1152 if ( rc != LDAP_SUCCESS )
1156 rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
1159 for (;baseAVA < newAVA; baseAVA++) {
1160 if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
1161 LDAP_FREE( baseAVA->la_attr.bv_val );
1162 if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
1163 LDAP_FREE( baseAVA->la_value.bv_val );
1167 LDAP_FREE( oidbuf );
1168 if ( newDN != (LDAPDN)(char *) ptrs )