1 /* tls.c - Handle tls/ssl. */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2010 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( ssl, 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();
437 if ( update_flags( sb, ssl, err )) return 1;
439 if ( DebugTest( LDAP_DEBUG_ANY ) ) {
441 msg = tls_imp->ti_session_errmsg( ssl, err, buf, sizeof(buf) );
442 Debug( LDAP_DEBUG_ANY,"TLS: can't accept: %s.\n",
443 msg ? msg : "(unknown)", 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 #ifdef HAVE_OPENSSL_CRL
566 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
568 if ( strcasecmp( arg, "none" ) == 0 ) {
569 i = LDAP_OPT_X_TLS_CRL_NONE ;
570 } else if ( strcasecmp( arg, "peer" ) == 0 ) {
571 i = LDAP_OPT_X_TLS_CRL_PEER ;
572 } else if ( strcasecmp( arg, "all" ) == 0 ) {
573 i = LDAP_OPT_X_TLS_CRL_ALL ;
576 return ldap_pvt_tls_set_option( ld, option, &i );
585 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
587 struct ldapoptions *lo;
590 assert( LDAP_VALID( ld ) );
592 if( !LDAP_VALID( ld ) ) {
593 return LDAP_OPT_ERROR;
596 lo = &ld->ld_options;
599 /* Get pointer to global option structure */
600 lo = LDAP_INT_GLOBAL_OPT();
602 return LDAP_NO_MEMORY;
608 *(int *)arg = lo->ldo_tls_mode;
610 case LDAP_OPT_X_TLS_CTX:
611 *(void **)arg = lo->ldo_tls_ctx;
612 if ( lo->ldo_tls_ctx ) {
613 tls_ctx_ref( lo->ldo_tls_ctx );
616 case LDAP_OPT_X_TLS_CACERTFILE:
617 *(char **)arg = lo->ldo_tls_cacertfile ?
618 LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL;
620 case LDAP_OPT_X_TLS_CACERTDIR:
621 *(char **)arg = lo->ldo_tls_cacertdir ?
622 LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL;
624 case LDAP_OPT_X_TLS_CERTFILE:
625 *(char **)arg = lo->ldo_tls_certfile ?
626 LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL;
628 case LDAP_OPT_X_TLS_KEYFILE:
629 *(char **)arg = lo->ldo_tls_keyfile ?
630 LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL;
632 case LDAP_OPT_X_TLS_DHFILE:
633 *(char **)arg = lo->ldo_tls_dhfile ?
634 LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL;
636 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
637 *(char **)arg = lo->ldo_tls_crlfile ?
638 LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL;
640 case LDAP_OPT_X_TLS_REQUIRE_CERT:
641 *(int *)arg = lo->ldo_tls_require_cert;
643 #ifdef HAVE_OPENSSL_CRL
644 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
645 *(int *)arg = lo->ldo_tls_crlcheck;
648 case LDAP_OPT_X_TLS_CIPHER_SUITE:
649 *(char **)arg = lo->ldo_tls_ciphersuite ?
650 LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL;
652 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
653 *(int *)arg = lo->ldo_tls_protocol_min;
655 case LDAP_OPT_X_TLS_RANDOM_FILE:
656 *(char **)arg = lo->ldo_tls_randfile ?
657 LDAP_STRDUP( lo->ldo_tls_randfile ) : NULL;
659 case LDAP_OPT_X_TLS_SSL_CTX: {
662 LDAPConn *conn = ld->ld_defconn;
663 if ( conn != NULL ) {
664 Sockbuf *sb = conn->lconn_sb;
665 retval = ldap_pvt_tls_sb_ctx( sb );
668 *(void **)arg = retval;
671 case LDAP_OPT_X_TLS_CONNECT_CB:
672 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
674 case LDAP_OPT_X_TLS_CONNECT_ARG:
675 *(void **)arg = lo->ldo_tls_connect_arg;
684 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
686 struct ldapoptions *lo;
689 assert( LDAP_VALID( ld ) );
691 if( !LDAP_VALID( ld ) ) {
692 return LDAP_OPT_ERROR;
695 lo = &ld->ld_options;
698 /* Get pointer to global option structure */
699 lo = LDAP_INT_GLOBAL_OPT();
701 return LDAP_NO_MEMORY;
707 if ( !arg ) return -1;
709 switch( *(int *) arg ) {
710 case LDAP_OPT_X_TLS_NEVER:
711 case LDAP_OPT_X_TLS_DEMAND:
712 case LDAP_OPT_X_TLS_ALLOW:
713 case LDAP_OPT_X_TLS_TRY:
714 case LDAP_OPT_X_TLS_HARD:
716 lo->ldo_tls_mode = *(int *)arg;
723 case LDAP_OPT_X_TLS_CTX:
724 if ( lo->ldo_tls_ctx )
725 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
726 lo->ldo_tls_ctx = arg;
727 tls_ctx_ref( lo->ldo_tls_ctx );
729 case LDAP_OPT_X_TLS_CONNECT_CB:
730 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
732 case LDAP_OPT_X_TLS_CONNECT_ARG:
733 lo->ldo_tls_connect_arg = arg;
735 case LDAP_OPT_X_TLS_CACERTFILE:
736 if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile );
737 lo->ldo_tls_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
739 case LDAP_OPT_X_TLS_CACERTDIR:
740 if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir );
741 lo->ldo_tls_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
743 case LDAP_OPT_X_TLS_CERTFILE:
744 if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile );
745 lo->ldo_tls_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
747 case LDAP_OPT_X_TLS_KEYFILE:
748 if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile );
749 lo->ldo_tls_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
751 case LDAP_OPT_X_TLS_DHFILE:
752 if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile );
753 lo->ldo_tls_dhfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
755 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */
756 if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile );
757 lo->ldo_tls_crlfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
759 case LDAP_OPT_X_TLS_REQUIRE_CERT:
760 if ( !arg ) return -1;
761 switch( *(int *) arg ) {
762 case LDAP_OPT_X_TLS_NEVER:
763 case LDAP_OPT_X_TLS_DEMAND:
764 case LDAP_OPT_X_TLS_ALLOW:
765 case LDAP_OPT_X_TLS_TRY:
766 case LDAP_OPT_X_TLS_HARD:
767 lo->ldo_tls_require_cert = * (int *) arg;
771 #ifdef HAVE_OPENSSL_CRL
772 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */
773 if ( !arg ) return -1;
774 switch( *(int *) arg ) {
775 case LDAP_OPT_X_TLS_CRL_NONE:
776 case LDAP_OPT_X_TLS_CRL_PEER:
777 case LDAP_OPT_X_TLS_CRL_ALL:
778 lo->ldo_tls_crlcheck = * (int *) arg;
783 case LDAP_OPT_X_TLS_CIPHER_SUITE:
784 if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite );
785 lo->ldo_tls_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
788 case LDAP_OPT_X_TLS_PROTOCOL_MIN:
789 if ( !arg ) return -1;
790 lo->ldo_tls_protocol_min = *(int *)arg;
792 case LDAP_OPT_X_TLS_RANDOM_FILE:
795 if ( lo->ldo_tls_randfile ) LDAP_FREE (lo->ldo_tls_randfile );
796 lo->ldo_tls_randfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
798 case LDAP_OPT_X_TLS_NEWCTX:
799 if ( !arg ) return -1;
800 if ( lo->ldo_tls_ctx )
801 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
802 lo->ldo_tls_ctx = NULL;
803 return ldap_int_tls_init_ctx( lo, *(int *)arg );
811 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
813 Sockbuf *sb = conn->lconn_sb;
818 host = srv->lud_host;
820 host = conn->lconn_server->lud_host;
823 /* avoid NULL host */
828 (void) tls_init( tls_imp );
831 * Fortunately, the lib uses blocking io...
833 if ( ldap_int_tls_connect( ld, conn ) < 0 ) {
834 ld->ld_errno = LDAP_CONNECT_ERROR;
835 return (ld->ld_errno);
838 ssl = ldap_pvt_tls_sb_ctx( sb );
839 assert( ssl != NULL );
842 * compare host with name(s) in certificate
844 if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER) {
845 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
846 if (ld->ld_errno != LDAP_SUCCESS) {
855 ldap_pvt_tls_sb_ctx( Sockbuf *sb )
859 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
864 ldap_pvt_tls_get_strength( void *s )
866 tls_session *session = s;
868 return tls_imp->ti_session_strength( session );
872 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
874 tls_session *session = s;
875 struct berval der_dn;
878 rc = tls_imp->ti_session_my_dn( session, &der_dn );
879 if ( rc == LDAP_SUCCESS )
880 rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags );
883 #endif /* HAVE_TLS */
886 ldap_start_tls( LDAP *ld,
887 LDAPControl **serverctrls,
888 LDAPControl **clientctrls,
891 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
892 NULL, serverctrls, clientctrls, msgidp );
896 ldap_install_tls( LDAP *ld )
899 return LDAP_NOT_SUPPORTED;
901 if ( ldap_tls_inplace( ld ) ) {
902 return LDAP_LOCAL_ERROR;
905 return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
910 ldap_start_tls_s ( LDAP *ld,
911 LDAPControl **serverctrls,
912 LDAPControl **clientctrls )
915 return LDAP_NOT_SUPPORTED;
919 struct berval *rspdata = NULL;
921 /* XXYYZ: this initiates operation only on default connection! */
923 if ( ldap_tls_inplace( ld ) ) {
924 return LDAP_LOCAL_ERROR;
927 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
928 NULL, serverctrls, clientctrls, &rspoid, &rspdata );
930 if ( rspoid != NULL ) {
934 if ( rspdata != NULL ) {
935 ber_bvfree( rspdata );
938 if ( rc == LDAP_SUCCESS ) {
939 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );
946 /* These tags probably all belong in lber.h, but they're
947 * not normally encountered when processing LDAP, so maybe
948 * they belong somewhere else instead.
951 #define LBER_TAG_OID ((ber_tag_t) 0x06UL)
953 /* Tags for string types used in a DirectoryString.
955 * Note that IA5string is not one of the defined choices for
956 * DirectoryString in X.520, but it gets used for email AVAs.
958 #define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL)
959 #define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL)
960 #define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL)
961 #define LBER_TAG_IA5 ((ber_tag_t) 0x16UL)
962 #define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL)
963 #define LBER_TAG_BMP ((ber_tag_t) 0x1eUL)
966 find_oid( struct berval *oid )
970 for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) {
971 if ( oids[i].oid.bv_len != oid->bv_len ) continue;
972 if ( !strcmp( oids[i].oid.bv_val, oid->bv_val ))
978 /* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
979 * x509_name must be raw DER. If func is non-NULL, the
980 * constructed DN will use numeric OIDs to identify attributeTypes,
981 * and the func() will be invoked to rewrite the DN with the given
984 * Otherwise the DN will use shortNames from a hardcoded table.
987 ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
992 LDAPAVA *newAVA, *baseAVA;
993 BerElementBuffer berbuf;
994 BerElement *ber = (BerElement *)&berbuf;
995 char oids[8192], *oidptr = oids, *oidbuf = NULL;
997 char *dn_end, *rdn_end;
998 int i, navas, nrdns, rc = LDAP_SUCCESS;
999 size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
1005 struct berval Oid, Val, oid2, *in = x509_name;
1007 assert( bv != NULL );
1015 /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
1016 * An AVA is a SEQUENCE of attr and value.
1017 * Count the number of AVAs and RDNs
1019 ber_init2( ber, in, LBER_USE_DER );
1020 tag = ber_peek_tag( ber, &len );
1021 if ( tag != LBER_SEQUENCE )
1022 return LDAP_DECODING_ERROR;
1024 for ( tag = ber_first_element( ber, &len, &dn_end );
1026 tag = ber_next_element( ber, &len, dn_end )) {
1028 for ( tag = ber_first_element( ber, &len, &rdn_end );
1029 tag == LBER_SEQUENCE;
1030 tag = ber_next_element( ber, &len, rdn_end )) {
1031 tag = ber_skip_tag( ber, &len );
1032 ber_skip_data( ber, len );
1037 /* Allocate the DN/RDN/AVA stuff as a single block */
1038 dnsize = sizeof(LDAPRDN) * (nrdns+1);
1039 dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
1040 dnsize += sizeof(LDAPAVA) * navas;
1041 if (dnsize > sizeof(ptrs)) {
1042 newDN = (LDAPDN)LDAP_MALLOC( dnsize );
1043 if ( newDN == NULL )
1044 return LDAP_NO_MEMORY;
1046 newDN = (LDAPDN)(char *)ptrs;
1049 newDN[nrdns] = NULL;
1050 newRDN = (LDAPRDN)(newDN + nrdns+1);
1051 newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
1054 /* Rewind and start extracting */
1057 tag = ber_first_element( ber, &len, &dn_end );
1058 for ( i = nrdns - 1; i >= 0; i-- ) {
1061 for ( tag = ber_first_element( ber, &len, &rdn_end );
1062 tag == LBER_SEQUENCE;
1063 tag = ber_next_element( ber, &len, rdn_end )) {
1066 tag = ber_skip_tag( ber, &len );
1067 tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM );
1068 if ( tag != LBER_TAG_OID ) {
1069 rc = LDAP_DECODING_ERROR;
1073 oid2.bv_val = oidptr;
1074 oid2.bv_len = oidrem;
1075 if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) {
1076 rc = LDAP_DECODING_ERROR;
1079 oidname = find_oid( &oid2 );
1081 newAVA->la_attr = oid2;
1082 oidptr += oid2.bv_len + 1;
1083 oidrem -= oid2.bv_len + 1;
1085 /* Running out of OID buffer space? */
1087 if ( oidsize == 0 ) {
1088 oidsize = sizeof(oids) * 2;
1090 oidbuf = LDAP_MALLOC( oidsize );
1091 if ( oidbuf == NULL ) goto nomem;
1095 oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
1096 if ( oidbuf == NULL ) goto nomem;
1097 /* Buffer moved! Fix AVA pointers */
1098 if ( old != oidbuf ) {
1100 long dif = oidbuf - old;
1102 for (a=baseAVA; a<=newAVA; a++){
1103 if (a->la_attr.bv_val >= old &&
1104 a->la_attr.bv_val <= (old + oidsize))
1105 a->la_attr.bv_val += dif;
1108 oidptr = oidbuf + oidsize - oidrem;
1115 newAVA->la_attr = oidname->oid;
1117 newAVA->la_attr = oidname->name;
1120 tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM );
1122 case LBER_TAG_UNIVERSAL:
1123 /* This uses 32-bit ISO 10646-1 */
1124 csize = 4; goto to_utf8;
1126 /* This uses 16-bit ISO 10646-1 */
1127 csize = 2; goto to_utf8;
1128 case LBER_TAG_TELETEX:
1129 /* This uses 8-bit, assume ISO 8859-1 */
1131 to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
1132 newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
1133 if (rc != LDAP_SUCCESS) goto nomem;
1134 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1137 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1138 /* This is already in UTF-8 encoding */
1140 case LBER_TAG_PRINTABLE:
1141 /* These are always 7-bit strings */
1142 newAVA->la_value = Val;
1146 newAVA->la_private = NULL;
1147 newAVA->la_flags = LDAP_AVA_STRING;
1151 tag = ber_next_element( ber, &len, dn_end );
1155 rc = func( newDN, flags, NULL );
1156 if ( rc != LDAP_SUCCESS )
1160 rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
1163 for (;baseAVA < newAVA; baseAVA++) {
1164 if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
1165 LDAP_FREE( baseAVA->la_attr.bv_val );
1166 if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
1167 LDAP_FREE( baseAVA->la_value.bv_val );
1171 LDAP_FREE( oidbuf );
1172 if ( newDN != (LDAPDN)(char *) ptrs )