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();
148 ldap_int_tls_destroy( lo );
150 tls_imp->ti_tls_destroy();
154 * Initialize a particular TLS implementation.
155 * Called once per implementation.
158 tls_init(tls_impl *impl )
160 static int tls_initialized = 0;
162 if ( !tls_initialized++ ) {
163 #ifdef LDAP_R_COMPILE
164 ldap_pvt_thread_mutex_init( &tls_def_ctx_mutex );
168 if ( impl->ti_inited++ ) return 0;
170 #ifdef LDAP_R_COMPILE
173 return impl->ti_tls_init();
177 * Initialize TLS subsystem. Called once per implementation.
180 ldap_pvt_tls_init( void )
182 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
184 return tls_init( tls_imp );
188 * initialize a new TLS context
191 ldap_int_tls_init_ctx( struct ldapoptions *lo, int is_server )
194 tls_impl *ti = tls_imp;
195 struct ldaptls lts = lo->ldo_tls_info;
197 if ( lo->ldo_tls_ctx )
202 if ( is_server && !lts.lt_certfile && !lts.lt_keyfile &&
203 !lts.lt_cacertfile && !lts.lt_cacertdir ) {
204 /* minimum configuration not provided */
205 return LDAP_NOT_SUPPORTED;
209 /* This ASCII/EBCDIC handling is a real pain! */
210 if ( lts.lt_ciphersuite ) {
211 lts.lt_ciphersuite = LDAP_STRDUP( lts.lt_ciphersuite );
212 __atoe( lts.lt_ciphersuite );
214 if ( lts.lt_cacertfile ) {
215 lts.lt_cacertfile = LDAP_STRDUP( lts.lt_cacertfile );
216 __atoe( lts.lt_cacertfile );
218 if ( lts.lt_certfile ) {
219 lts.lt_certfile = LDAP_STRDUP( lts.lt_certfile );
220 __atoe( lts.lt_certfile );
222 if ( lts.lt_keyfile ) {
223 lts.lt_keyfile = LDAP_STRDUP( lts.lt_keyfile );
224 __atoe( lts.lt_keyfile );
226 if ( lts.lt_crlfile ) {
227 lts.lt_crlfile = LDAP_STRDUP( lts.lt_crlfile );
228 __atoe( lts.lt_crlfile );
230 if ( lts.lt_cacertdir ) {
231 lts.lt_cacertdir = LDAP_STRDUP( lts.lt_cacertdir );
232 __atoe( lts.lt_cacertdir );
234 if ( lts.lt_dhfile ) {
235 lts.lt_dhfile = LDAP_STRDUP( lts.lt_dhfile );
236 __atoe( lts.lt_dhfile );
239 lo->ldo_tls_ctx = ti->ti_ctx_new( lo );
240 if ( lo->ldo_tls_ctx == NULL ) {
241 Debug( LDAP_DEBUG_ANY,
242 "TLS: could not allocate default ctx.\n",
248 rc = ti->ti_ctx_init( lo, <s, is_server );
251 if ( rc < 0 && lo->ldo_tls_ctx != NULL ) {
252 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
253 lo->ldo_tls_ctx = NULL;
256 LDAP_FREE( lts.lt_ciphersuite );
257 LDAP_FREE( lts.lt_cacertfile );
258 LDAP_FREE( lts.lt_certfile );
259 LDAP_FREE( lts.lt_keyfile );
260 LDAP_FREE( lts.lt_crlfile );
261 LDAP_FREE( lts.lt_cacertdir );
262 LDAP_FREE( lts.lt_dhfile );
268 * initialize the default context
271 ldap_pvt_tls_init_def_ctx( int is_server )
273 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
275 #ifdef LDAP_R_COMPILE
276 ldap_pvt_thread_mutex_lock( &tls_def_ctx_mutex );
278 rc = ldap_int_tls_init_ctx( lo, is_server );
279 #ifdef LDAP_R_COMPILE
280 ldap_pvt_thread_mutex_unlock( &tls_def_ctx_mutex );
286 alloc_handle( void *ctx_arg, int is_server )
294 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
295 if ( ldap_pvt_tls_init_def_ctx( is_server ) < 0 ) return NULL;
296 ctx = lo->ldo_tls_ctx;
299 ssl = tls_imp->ti_session_new( ctx, is_server );
301 Debug( LDAP_DEBUG_ANY,"TLS: can't create ssl handle.\n",0,0,0);
308 update_flags( Sockbuf *sb, tls_session * ssl, int rc )
310 sb->sb_trans_needs_read = 0;
311 sb->sb_trans_needs_write = 0;
313 return tls_imp->ti_session_upflags( sb, ssl, rc );
317 * Call this to do a TLS connect on a sockbuf. ctx_arg can be
318 * a SSL_CTX * or NULL, in which case the default ctx is used.
322 * 0 - Success. Connection is ready for communication.
323 * <0 - Error. Can't create a TLS stream.
324 * >0 - Partial success.
325 * Do a select (using information from lber_pvt_sb_needs_{read,write}
330 ldap_int_tls_connect( LDAP *ld, LDAPConn *conn )
332 Sockbuf *sb = conn->lconn_sb;
334 tls_session *ssl = NULL;
336 if ( HAS_TLS( sb )) {
337 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
339 struct ldapoptions *lo;
342 ctx = ld->ld_options.ldo_tls_ctx;
344 ssl = alloc_handle( ctx, 0 );
346 if ( ssl == NULL ) return -1;
349 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
350 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
352 ber_sockbuf_add_io( sb, tls_imp->ti_sbio,
353 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
355 lo = LDAP_INT_GLOBAL_OPT();
357 ctx = lo->ldo_tls_ctx;
358 ld->ld_options.ldo_tls_ctx = ctx;
361 if ( ld->ld_options.ldo_tls_connect_cb )
362 ld->ld_options.ldo_tls_connect_cb( ld, ssl, ctx,
363 ld->ld_options.ldo_tls_connect_arg );
364 if ( lo && lo->ldo_tls_connect_cb && lo->ldo_tls_connect_cb !=
365 ld->ld_options.ldo_tls_connect_cb )
366 lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg );
369 err = tls_imp->ti_session_connect( ld, ssl );
372 errno = WSAGetLastError();
378 if ( update_flags( sb, ssl, err )) {
382 msg = tls_imp->ti_session_errmsg( err, buf, sizeof(buf) );
384 if ( ld->ld_error ) {
385 LDAP_FREE( ld->ld_error );
387 ld->ld_error = LDAP_STRDUP( msg );
389 if ( ld->ld_error ) __etoa(ld->ld_error);
393 Debug( LDAP_DEBUG_ANY,"TLS: can't connect: %s.\n",
394 ld->ld_error ? ld->ld_error : "" ,0,0);
396 ber_sockbuf_remove_io( sb, tls_imp->ti_sbio,
397 LBER_SBIOD_LEVEL_TRANSPORT );
399 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
400 LBER_SBIOD_LEVEL_TRANSPORT );
409 * Call this to do a TLS accept on a sockbuf.
410 * Everything else is the same as with tls_connect.
413 ldap_pvt_tls_accept( Sockbuf *sb, void *ctx_arg )
416 tls_session *ssl = NULL;
418 if ( HAS_TLS( sb )) {
419 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
421 ssl = alloc_handle( ctx_arg, 1 );
422 if ( ssl == NULL ) return -1;
425 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
426 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
428 ber_sockbuf_add_io( sb, tls_imp->ti_sbio,
429 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
432 err = tls_imp->ti_session_accept( ssl );
435 errno = WSAGetLastError();
441 if ( update_flags( sb, ssl, err )) return 1;
443 Debug( LDAP_DEBUG_ANY,"TLS: can't accept: %s.\n",
444 tls_imp->ti_session_errmsg( err, buf, sizeof(buf) ),0,0 );
446 ber_sockbuf_remove_io( sb, tls_imp->ti_sbio,
447 LBER_SBIOD_LEVEL_TRANSPORT );
449 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
450 LBER_SBIOD_LEVEL_TRANSPORT );
458 ldap_pvt_tls_inplace ( Sockbuf *sb )
460 return HAS_TLS( sb ) ? 1 : 0;
464 ldap_tls_inplace( LDAP *ld )
468 if ( ld->ld_defconn && ld->ld_defconn->lconn_sb ) {
469 sb = ld->ld_defconn->lconn_sb;
471 } else if ( ld->ld_sb ) {
478 return ldap_pvt_tls_inplace( sb );
482 ldap_pvt_tls_get_peer_dn( void *s, struct berval *dn,
483 LDAPDN_rewrite_dummy *func, unsigned flags )
485 tls_session *session = s;
489 rc = tls_imp->ti_session_peer_dn( session, &bvdn );
492 rc = ldap_X509dn2bv( &bvdn, dn,
493 (LDAPDN_rewrite_func *)func, flags);
498 ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in )
500 tls_session *session = s;
502 return tls_imp->ti_session_chkhost( ld, session, name_in );
506 ldap_int_tls_config( LDAP *ld, int option, const char *arg )
511 case LDAP_OPT_X_TLS_CACERTFILE:
512 case LDAP_OPT_X_TLS_CACERTDIR:
513 case LDAP_OPT_X_TLS_CERTFILE:
514 case LDAP_OPT_X_TLS_KEYFILE:
515 case LDAP_OPT_X_TLS_RANDOM_FILE:
516 case LDAP_OPT_X_TLS_CIPHER_SUITE:
517 case LDAP_OPT_X_TLS_DHFILE:
518 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
519 return ldap_pvt_tls_set_option( ld, option, (void *) arg );
521 case LDAP_OPT_X_TLS_REQUIRE_CERT:
524 if ( strcasecmp( arg, "never" ) == 0 ) {
525 i = LDAP_OPT_X_TLS_NEVER ;
527 } else if ( strcasecmp( arg, "demand" ) == 0 ) {
528 i = LDAP_OPT_X_TLS_DEMAND ;
530 } else if ( strcasecmp( arg, "allow" ) == 0 ) {
531 i = LDAP_OPT_X_TLS_ALLOW ;
533 } else if ( strcasecmp( arg, "try" ) == 0 ) {
534 i = LDAP_OPT_X_TLS_TRY ;
536 } else if ( ( strcasecmp( arg, "hard" ) == 0 ) ||
537 ( strcasecmp( arg, "on" ) == 0 ) ||
538 ( strcasecmp( arg, "yes" ) == 0) ||
539 ( strcasecmp( arg, "true" ) == 0 ) )
541 i = LDAP_OPT_X_TLS_HARD ;
545 return ldap_pvt_tls_set_option( ld, option, &i );
548 case LDAP_OPT_X_TLS_PROTOCOL_MIN: {
551 l = strtol( arg, &next, 10 );
552 if ( l < 0 || l > 0xff || next == arg ||
553 ( *next != '\0' && *next != '.' ) )
558 l = strtol( arg, &next, 10 );
559 if ( l < 0 || l > 0xff || next == arg || *next != '\0' )
563 return ldap_pvt_tls_set_option( ld, option, &i );
565 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
567 if ( strcasecmp( arg, "none" ) == 0 ) {
568 i = LDAP_OPT_X_TLS_CRL_NONE ;
569 } else if ( strcasecmp( arg, "peer" ) == 0 ) {
570 i = LDAP_OPT_X_TLS_CRL_PEER ;
571 } else if ( strcasecmp( arg, "all" ) == 0 ) {
572 i = LDAP_OPT_X_TLS_CRL_ALL ;
575 return ldap_pvt_tls_set_option( ld, option, &i );
583 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
585 struct ldapoptions *lo;
588 assert( LDAP_VALID( ld ) );
590 if( !LDAP_VALID( ld ) ) {
591 return LDAP_OPT_ERROR;
594 lo = &ld->ld_options;
597 /* Get pointer to global option structure */
598 lo = LDAP_INT_GLOBAL_OPT();
600 return LDAP_NO_MEMORY;
606 *(int *)arg = lo->ldo_tls_mode;
608 case LDAP_OPT_X_TLS_CTX:
609 *(void **)arg = lo->ldo_tls_ctx;
610 if ( lo->ldo_tls_ctx ) {
611 tls_ctx_ref( lo->ldo_tls_ctx );
614 case LDAP_OPT_X_TLS_CACERTFILE:
615 *(char **)arg = lo->ldo_tls_cacertfile ?
616 LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL;
618 case LDAP_OPT_X_TLS_CACERTDIR:
619 *(char **)arg = lo->ldo_tls_cacertdir ?
620 LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL;
622 case LDAP_OPT_X_TLS_CERTFILE:
623 *(char **)arg = lo->ldo_tls_certfile ?
624 LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL;
626 case LDAP_OPT_X_TLS_KEYFILE:
627 *(char **)arg = lo->ldo_tls_keyfile ?
628 LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL;
630 case LDAP_OPT_X_TLS_DHFILE:
631 *(char **)arg = lo->ldo_tls_dhfile ?
632 LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL;
634 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
635 *(char **)arg = lo->ldo_tls_crlfile ?
636 LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL;
638 case LDAP_OPT_X_TLS_REQUIRE_CERT:
639 *(int *)arg = lo->ldo_tls_require_cert;
641 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
642 *(int *)arg = lo->ldo_tls_crlcheck;
644 case LDAP_OPT_X_TLS_CIPHER_SUITE:
645 *(char **)arg = lo->ldo_tls_ciphersuite ?
646 LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL;
648 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
649 *(int *)arg = lo->ldo_tls_protocol_min;
651 case LDAP_OPT_X_TLS_RANDOM_FILE: /* OpenSSL only */
652 *(char **)arg = lo->ldo_tls_randfile ?
653 LDAP_STRDUP( lo->ldo_tls_randfile ) : NULL;
655 case LDAP_OPT_X_TLS_SSL_CTX: {
658 LDAPConn *conn = ld->ld_defconn;
659 if ( conn != NULL ) {
660 Sockbuf *sb = conn->lconn_sb;
661 retval = ldap_pvt_tls_sb_ctx( sb );
664 *(void **)arg = retval;
667 case LDAP_OPT_X_TLS_CONNECT_CB:
668 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
670 case LDAP_OPT_X_TLS_CONNECT_ARG:
671 *(void **)arg = lo->ldo_tls_connect_arg;
680 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
682 struct ldapoptions *lo;
685 assert( LDAP_VALID( ld ) );
687 if( !LDAP_VALID( ld ) ) {
688 return LDAP_OPT_ERROR;
691 lo = &ld->ld_options;
694 /* Get pointer to global option structure */
695 lo = LDAP_INT_GLOBAL_OPT();
697 return LDAP_NO_MEMORY;
703 if ( !arg ) return -1;
705 switch( *(int *) arg ) {
706 case LDAP_OPT_X_TLS_NEVER:
707 case LDAP_OPT_X_TLS_DEMAND:
708 case LDAP_OPT_X_TLS_ALLOW:
709 case LDAP_OPT_X_TLS_TRY:
710 case LDAP_OPT_X_TLS_HARD:
712 lo->ldo_tls_mode = *(int *)arg;
719 case LDAP_OPT_X_TLS_CTX:
720 if ( lo->ldo_tls_ctx )
721 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
722 lo->ldo_tls_ctx = arg;
723 tls_ctx_ref( lo->ldo_tls_ctx );
725 case LDAP_OPT_X_TLS_CONNECT_CB:
726 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
728 case LDAP_OPT_X_TLS_CONNECT_ARG:
729 lo->ldo_tls_connect_arg = arg;
731 case LDAP_OPT_X_TLS_CACERTFILE:
732 if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile );
733 lo->ldo_tls_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
735 case LDAP_OPT_X_TLS_CACERTDIR:
736 if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir );
737 lo->ldo_tls_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
739 case LDAP_OPT_X_TLS_CERTFILE:
740 if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile );
741 lo->ldo_tls_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
743 case LDAP_OPT_X_TLS_KEYFILE:
744 if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile );
745 lo->ldo_tls_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
747 case LDAP_OPT_X_TLS_DHFILE:
748 if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile );
749 lo->ldo_tls_dhfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
751 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
752 if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile );
753 lo->ldo_tls_crlfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
755 case LDAP_OPT_X_TLS_REQUIRE_CERT:
756 if ( !arg ) return -1;
757 switch( *(int *) arg ) {
758 case LDAP_OPT_X_TLS_NEVER:
759 case LDAP_OPT_X_TLS_DEMAND:
760 case LDAP_OPT_X_TLS_ALLOW:
761 case LDAP_OPT_X_TLS_TRY:
762 case LDAP_OPT_X_TLS_HARD:
763 lo->ldo_tls_require_cert = * (int *) arg;
767 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
768 if ( !arg ) return -1;
769 switch( *(int *) arg ) {
770 case LDAP_OPT_X_TLS_CRL_NONE:
771 case LDAP_OPT_X_TLS_CRL_PEER:
772 case LDAP_OPT_X_TLS_CRL_ALL:
773 lo->ldo_tls_crlcheck = * (int *) arg;
777 case LDAP_OPT_X_TLS_CIPHER_SUITE:
778 if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite );
779 lo->ldo_tls_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
782 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
783 if ( !arg ) return -1;
784 lo->ldo_tls_protocol_min = *(int *)arg;
787 case LDAP_OPT_X_TLS_RANDOM_FILE: /* OpenSSL only */
790 if ( lo->ldo_tls_randfile ) LDAP_FREE (lo->ldo_tls_randfile );
791 lo->ldo_tls_randfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
794 case LDAP_OPT_X_TLS_NEWCTX:
795 if ( !arg ) return -1;
796 if ( lo->ldo_tls_ctx )
797 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
798 lo->ldo_tls_ctx = NULL;
799 return ldap_int_tls_init_ctx( lo, *(int *)arg );
807 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
809 Sockbuf *sb = conn->lconn_sb;
814 host = srv->lud_host;
816 host = conn->lconn_server->lud_host;
819 /* avoid NULL host */
824 (void) tls_init( tls_imp );
827 * Fortunately, the lib uses blocking io...
829 if ( ldap_int_tls_connect( ld, conn ) < 0 ) {
830 ld->ld_errno = LDAP_CONNECT_ERROR;
831 return (ld->ld_errno);
834 ssl = ldap_pvt_tls_sb_ctx( sb );
835 assert( ssl != NULL );
838 * compare host with name(s) in certificate
840 if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER) {
841 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
842 if (ld->ld_errno != LDAP_SUCCESS) {
851 ldap_pvt_tls_sb_ctx( Sockbuf *sb )
855 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
860 ldap_pvt_tls_get_strength( void *s )
862 tls_session *session = s;
864 return tls_imp->ti_session_strength( session );
868 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
870 tls_session *session = s;
871 struct berval der_dn;
874 tls_imp->ti_session_my_dn( session, &der_dn );
875 rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags );
878 #endif /* HAVE_TLS */
881 ldap_start_tls( LDAP *ld,
882 LDAPControl **serverctrls,
883 LDAPControl **clientctrls,
886 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
887 NULL, serverctrls, clientctrls, msgidp );
891 ldap_install_tls( LDAP *ld )
894 return LDAP_NOT_SUPPORTED;
896 if ( ldap_tls_inplace( ld ) ) {
897 return LDAP_LOCAL_ERROR;
900 return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
905 ldap_start_tls_s ( LDAP *ld,
906 LDAPControl **serverctrls,
907 LDAPControl **clientctrls )
910 return LDAP_NOT_SUPPORTED;
914 struct berval *rspdata = NULL;
916 /* XXYYZ: this initiates operation only on default connection! */
918 if ( ldap_tls_inplace( ld ) ) {
919 return LDAP_LOCAL_ERROR;
922 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
923 NULL, serverctrls, clientctrls, &rspoid, &rspdata );
925 if ( rspoid != NULL ) {
929 if ( rspdata != NULL ) {
930 ber_bvfree( rspdata );
933 if ( rc == LDAP_SUCCESS ) {
934 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );
941 /* These tags probably all belong in lber.h, but they're
942 * not normally encountered when processing LDAP, so maybe
943 * they belong somewhere else instead.
946 #define LBER_TAG_OID ((ber_tag_t) 0x06UL)
948 /* Tags for string types used in a DirectoryString.
950 * Note that IA5string is not one of the defined choices for
951 * DirectoryString in X.520, but it gets used for email AVAs.
953 #define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL)
954 #define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL)
955 #define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL)
956 #define LBER_TAG_IA5 ((ber_tag_t) 0x16UL)
957 #define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL)
958 #define LBER_TAG_BMP ((ber_tag_t) 0x1eUL)
961 find_oid( struct berval *oid )
965 for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) {
966 if ( oids[i].oid.bv_len != oid->bv_len ) continue;
967 if ( !strcmp( oids[i].oid.bv_val, oid->bv_val ))
973 /* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
974 * x509_name must be raw DER. If func is non-NULL, the
975 * constructed DN will use numeric OIDs to identify attributeTypes,
976 * and the func() will be invoked to rewrite the DN with the given
979 * Otherwise the DN will use shortNames from a hardcoded table.
982 ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
987 LDAPAVA *newAVA, *baseAVA;
988 BerElementBuffer berbuf;
989 BerElement *ber = (BerElement *)&berbuf;
990 char oids[8192], *oidptr = oids, *oidbuf = NULL;
992 char *dn_end, *rdn_end;
993 int i, navas, nrdns, rc = LDAP_SUCCESS;
994 size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
1000 struct berval Oid, Val, oid2, *in = x509_name;
1002 assert( bv != NULL );
1010 /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
1011 * An AVA is a SEQUENCE of attr and value.
1012 * Count the number of AVAs and RDNs
1014 ber_init2( ber, in, LBER_USE_DER );
1015 tag = ber_peek_tag( ber, &len );
1016 if ( tag != LBER_SEQUENCE )
1017 return LDAP_DECODING_ERROR;
1019 for ( tag = ber_first_element( ber, &len, &dn_end );
1021 tag = ber_next_element( ber, &len, dn_end )) {
1023 for ( tag = ber_first_element( ber, &len, &rdn_end );
1024 tag == LBER_SEQUENCE;
1025 tag = ber_next_element( ber, &len, rdn_end )) {
1026 tag = ber_skip_tag( ber, &len );
1027 ber_skip_data( ber, len );
1032 /* Allocate the DN/RDN/AVA stuff as a single block */
1033 dnsize = sizeof(LDAPRDN) * (nrdns+1);
1034 dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
1035 dnsize += sizeof(LDAPAVA) * navas;
1036 if (dnsize > sizeof(ptrs)) {
1037 newDN = (LDAPDN)LDAP_MALLOC( dnsize );
1038 if ( newDN == NULL )
1039 return LDAP_NO_MEMORY;
1041 newDN = (LDAPDN)(char *)ptrs;
1044 newDN[nrdns] = NULL;
1045 newRDN = (LDAPRDN)(newDN + nrdns+1);
1046 newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
1049 /* Rewind and start extracting */
1052 tag = ber_first_element( ber, &len, &dn_end );
1053 for ( i = nrdns - 1; i >= 0; i-- ) {
1056 for ( tag = ber_first_element( ber, &len, &rdn_end );
1057 tag == LBER_SEQUENCE;
1058 tag = ber_next_element( ber, &len, rdn_end )) {
1061 tag = ber_skip_tag( ber, &len );
1062 tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM );
1063 if ( tag != LBER_TAG_OID ) {
1064 rc = LDAP_DECODING_ERROR;
1068 oid2.bv_val = oidptr;
1069 oid2.bv_len = oidrem;
1070 if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) {
1071 rc = LDAP_DECODING_ERROR;
1074 oidname = find_oid( &oid2 );
1076 newAVA->la_attr = oid2;
1077 oidptr += oid2.bv_len + 1;
1078 oidrem -= oid2.bv_len + 1;
1080 /* Running out of OID buffer space? */
1082 if ( oidsize == 0 ) {
1083 oidsize = sizeof(oids) * 2;
1085 oidbuf = LDAP_MALLOC( oidsize );
1086 if ( oidbuf == NULL ) goto nomem;
1090 oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
1091 if ( oidbuf == NULL ) goto nomem;
1092 /* Buffer moved! Fix AVA pointers */
1093 if ( old != oidbuf ) {
1095 long dif = oidbuf - old;
1097 for (a=baseAVA; a<=newAVA; a++){
1098 if (a->la_attr.bv_val >= old &&
1099 a->la_attr.bv_val <= (old + oidsize))
1100 a->la_attr.bv_val += dif;
1103 oidptr = oidbuf + oidsize - oidrem;
1110 newAVA->la_attr = oidname->oid;
1112 newAVA->la_attr = oidname->name;
1115 tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM );
1117 case LBER_TAG_UNIVERSAL:
1118 /* This uses 32-bit ISO 10646-1 */
1119 csize = 4; goto to_utf8;
1121 /* This uses 16-bit ISO 10646-1 */
1122 csize = 2; goto to_utf8;
1123 case LBER_TAG_TELETEX:
1124 /* This uses 8-bit, assume ISO 8859-1 */
1126 to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
1127 newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
1128 if (rc != LDAP_SUCCESS) goto nomem;
1129 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1132 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1133 /* This is already in UTF-8 encoding */
1135 case LBER_TAG_PRINTABLE:
1136 /* These are always 7-bit strings */
1137 newAVA->la_value = Val;
1141 newAVA->la_private = NULL;
1142 newAVA->la_flags = LDAP_AVA_STRING;
1146 tag = ber_next_element( ber, &len, dn_end );
1150 rc = func( newDN, flags, NULL );
1151 if ( rc != LDAP_SUCCESS )
1155 rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
1158 for (;baseAVA < newAVA; baseAVA++) {
1159 if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
1160 LDAP_FREE( baseAVA->la_attr.bv_val );
1161 if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
1162 LDAP_FREE( baseAVA->la_value.bv_val );
1166 LDAP_FREE( oidbuf );
1167 if ( newDN != (LDAPDN)(char *) ptrs )