1 /* gnutls.c - Handle tls/ssl using GNUTLS. */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2007 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>.
24 #include "ldap_config.h"
28 #include <ac/stdlib.h>
30 #include <ac/socket.h>
31 #include <ac/string.h>
34 #include <ac/unistd.h>
36 #include <ac/dirent.h>
39 #include "ldap_schema.h"
41 #include <gnutls/gnutls.h>
42 #include <gnutls/x509.h>
45 #define DH_BITS (1024)
48 # include <ldap_pvt_thread.h>
51 ldap_pvt_gcry_mutex_init( void **priv )
54 ldap_pvt_thread_mutex_t *lock = LDAP_MALLOC( sizeof( ldap_pvt_thread_mutex_t ));
59 err = ldap_pvt_thread_mutex_init( lock );
68 ldap_pvt_gcry_mutex_destroy( void **lock )
70 int err = ldap_pvt_thread_mutex_destroy( *lock );
75 ldap_pvt_gcry_mutex_lock( void **lock )
77 return ldap_pvt_thread_mutex_lock( *lock );
80 ldap_pvt_gcry_mutex_unlock( void **lock )
82 return ldap_pvt_thread_mutex_unlock( *lock );
85 static struct gcry_thread_cbs ldap_generic_thread_cbs = {
86 GCRY_THREAD_OPTION_USER,
88 ldap_pvt_gcry_mutex_init,
89 ldap_pvt_gcry_mutex_destroy,
90 ldap_pvt_gcry_mutex_lock,
91 ldap_pvt_gcry_mutex_unlock,
92 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
96 /* sorta replacing SSL_CTX */
97 typedef struct ldap_pvt_tls_ctx {
98 struct ldapoptions *lo;
100 gnutls_certificate_credentials_t cred;
101 gnutls_dh_params_t dh_params;
102 unsigned long verify_depth;
104 #ifdef LDAP_R_COMPILE
105 ldap_pvt_thread_mutex_t ref_mutex;
107 } ldap_pvt_tls_ctx_t;
109 /* sorta replacing SSL */
110 typedef struct ldap_pvt_gnutls_session {
111 ldap_pvt_tls_ctx_t *ctx;
112 gnutls_session_t session;
113 struct berval peer_der_dn;
114 } ldap_pvt_gnutls_session_t;
116 #define HAS_TLS( sb ) ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO, \
117 (void *)&sb_tls_sbio )
119 /* RFC2459 minimum required set of supported attribute types
121 typedef struct oid_name {
126 #define CN_OID oids[0].oid.bv_val
128 static oid_name oids[] = {
129 { BER_BVC("2.5.4.3"), BER_BVC("cn") },
130 { BER_BVC("2.5.4.4"), BER_BVC("sn") },
131 { BER_BVC("2.5.4.6"), BER_BVC("c") },
132 { BER_BVC("2.5.4.7"), BER_BVC("l") },
133 { BER_BVC("2.5.4.8"), BER_BVC("st") },
134 { BER_BVC("2.5.4.10"), BER_BVC("o") },
135 { BER_BVC("2.5.4.11"), BER_BVC("ou") },
136 { BER_BVC("2.5.4.12"), BER_BVC("title") },
137 { BER_BVC("2.5.4.41"), BER_BVC("name") },
138 { BER_BVC("2.5.4.42"), BER_BVC("givenName") },
139 { BER_BVC("2.5.4.43"), BER_BVC("initials") },
140 { BER_BVC("2.5.4.44"), BER_BVC("generationQualifier") },
141 { BER_BVC("2.5.4.46"), BER_BVC("dnQualifier") },
142 { BER_BVC("1.2.840.113549.1.9.1"), BER_BVC("email") },
143 { BER_BVC("0.9.2342.19200300.100.1.25"), BER_BVC("dc") },
144 { BER_BVNULL, BER_BVNULL }
148 ldap_pvt_tls_ctx_new ( struct ldapoptions *lo )
150 ldap_pvt_tls_ctx_t *ctx;
152 ctx = ber_memcalloc ( 1, sizeof (*ctx) );
155 if ( gnutls_certificate_allocate_credentials( &ctx->cred ) < 0 ) {
160 #ifdef LDAP_R_COMPILE
161 ldap_pvt_thread_mutex_init( &ctx->ref_mutex );
168 ldap_pvt_tls_ctx_free ( void *c )
171 ldap_pvt_tls_ctx_t *ctx = c;
173 #ifdef LDAP_R_COMPILE
174 ldap_pvt_thread_mutex_lock( &ctx->ref_mutex );
176 refcount = --ctx->refcount;
177 #ifdef LDAP_R_COMPILE
178 ldap_pvt_thread_mutex_unlock( &ctx->ref_mutex );
182 gnutls_certificate_free_credentials( ctx->cred );
187 ldap_pvt_tls_ctx_ref( ldap_pvt_tls_ctx_t * ctx )
189 #ifdef LDAP_R_COMPILE
190 ldap_pvt_thread_mutex_lock( &ctx->ref_mutex );
193 #ifdef LDAP_R_COMPILE
194 ldap_pvt_thread_mutex_unlock( &ctx->ref_mutex );
198 ldap_pvt_gnutls_session_t *
199 ldap_pvt_gnutls_session_new ( ldap_pvt_tls_ctx_t * ctx, int is_server )
201 ldap_pvt_gnutls_session_t *session;
203 session = ber_memcalloc ( 1, sizeof (*session) );
207 gnutls_init( &session->session, is_server ? GNUTLS_SERVER : GNUTLS_CLIENT );
208 gnutls_set_default_priority( session->session );
210 gnutls_credentials_set( session->session, GNUTLS_CRD_CERTIFICATE, ctx->cred );
214 if ( ctx->lo->ldo_tls_require_cert ) {
215 flag = GNUTLS_CERT_REQUEST;
216 if ( ctx->lo->ldo_tls_require_cert == LDAP_OPT_X_TLS_DEMAND ||
217 ctx->lo->ldo_tls_require_cert == LDAP_OPT_X_TLS_HARD )
218 flag = GNUTLS_CERT_REQUIRE;
219 gnutls_certificate_server_set_request( session->session, flag );
226 ldap_pvt_gnutls_session_free ( ldap_pvt_gnutls_session_t * session )
228 ber_memfree ( session );
231 #ifdef LDAP_R_COMPILE
233 tls_init_threads( void )
235 gcry_control (GCRYCTL_SET_THREAD_CBS, &ldap_generic_thread_cbs);
240 ldap_int_tls_destroy( struct ldapoptions *lo )
242 if ( lo->ldo_tls_ctx ) {
243 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
244 lo->ldo_tls_ctx = NULL;
247 if ( lo->ldo_tls_certfile ) {
248 LDAP_FREE( lo->ldo_tls_certfile );
249 lo->ldo_tls_certfile = NULL;
251 if ( lo->ldo_tls_keyfile ) {
252 LDAP_FREE( lo->ldo_tls_keyfile );
253 lo->ldo_tls_keyfile = NULL;
255 if ( lo->ldo_tls_dhfile ) {
256 LDAP_FREE( lo->ldo_tls_dhfile );
257 lo->ldo_tls_dhfile = NULL;
259 if ( lo->ldo_tls_cacertfile ) {
260 LDAP_FREE( lo->ldo_tls_cacertfile );
261 lo->ldo_tls_cacertfile = NULL;
263 if ( lo->ldo_tls_cacertdir ) {
264 LDAP_FREE( lo->ldo_tls_cacertdir );
265 lo->ldo_tls_cacertdir = NULL;
267 if ( lo->ldo_tls_ciphersuite ) {
268 LDAP_FREE( lo->ldo_tls_ciphersuite );
269 lo->ldo_tls_ciphersuite = NULL;
274 * Tear down the TLS subsystem. Should only be called once.
277 ldap_pvt_tls_destroy( void )
279 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
281 ldap_int_tls_destroy( lo );
283 gnutls_global_deinit();
287 * Initialize TLS subsystem. Should be called only once.
290 ldap_pvt_tls_init( void )
292 static int tls_initialized = 0;
294 if ( tls_initialized++ ) return 0;
296 #ifdef LDAP_R_COMPILE
299 gnutls_global_init ();
304 * initialize a new TLS context
307 ldap_int_tls_init_ctx( struct ldapoptions *lo, int is_server )
310 char *ciphersuite = lo->ldo_tls_ciphersuite;
311 char *cacertfile = lo->ldo_tls_cacertfile;
312 char *cacertdir = lo->ldo_tls_cacertdir;
313 char *certfile = lo->ldo_tls_certfile;
314 char *keyfile = lo->ldo_tls_keyfile;
315 char *dhfile = lo->ldo_tls_dhfile;
316 char *crlfile = lo->ldo_tls_crlfile;
318 if ( lo->ldo_tls_ctx )
323 if ( is_server && !certfile && !keyfile && !cacertfile && !cacertdir ) {
324 /* minimum configuration not provided */
325 return LDAP_NOT_SUPPORTED;
329 /* This ASCII/EBCDIC handling is a real pain! */
331 ciphersuite = LDAP_STRDUP( ciphersuite );
332 __atoe( ciphersuite );
335 cacertfile = LDAP_STRDUP( cacertfile );
336 __atoe( cacertfile );
339 cacertdir = LDAP_STRDUP( cacertdir );
343 certfile = LDAP_STRDUP( certfile );
347 keyfile = LDAP_STRDUP( keyfile );
351 dhfile = LDAP_STRDUP( dhfile );
355 crlfile = LDAP_STRDUP( crlfile );
359 lo->ldo_tls_ctx = ldap_pvt_tls_ctx_new ( lo );
360 if ( lo->ldo_tls_ctx == NULL ) {
361 Debug( LDAP_DEBUG_ANY,
362 "TLS: could not allocate default ctx.\n",
368 /* fixme convert ciphersuite spec formats? */
369 /* if ( lo->ldo_tls_ciphersuite && hm ) { */
370 /* Debug( LDAP_DEBUG_ANY, */
371 /* "TLS: could not set cipher list %s.\n", */
372 /* lo->ldo_tls_ciphersuite, 0, 0 ); */
373 /* tls_report_error(); */
375 /* goto error_exit; */
378 if (lo->ldo_tls_cacertdir != NULL) {
379 Debug( LDAP_DEBUG_ANY,
380 "TLS: warning: cacertdir not implemented for gnutls\n",
384 if (lo->ldo_tls_cacertfile != NULL) {
385 rc = gnutls_certificate_set_x509_trust_file(
386 ((ldap_pvt_tls_ctx_t*) lo->ldo_tls_ctx)->cred,
387 lo->ldo_tls_cacertfile,
388 GNUTLS_X509_FMT_PEM );
389 if ( rc < 0 ) goto error_exit;
392 if ( lo->ldo_tls_certfile && lo->ldo_tls_keyfile ) {
393 rc = gnutls_certificate_set_x509_key_file(
394 ((ldap_pvt_tls_ctx_t*) lo->ldo_tls_ctx)->cred,
395 lo->ldo_tls_certfile,
397 GNUTLS_X509_FMT_PEM );
398 if ( rc ) goto error_exit;
399 } else if ( lo->ldo_tls_certfile || lo->ldo_tls_keyfile ) {
400 Debug( LDAP_DEBUG_ANY,
401 "TLS: only one of certfile and keyfile specified\n",
407 if ( lo->ldo_tls_dhfile ) {
408 Debug( LDAP_DEBUG_ANY,
409 "TLS: warning: ignoring dhfile\n",
413 if ( lo->ldo_tls_crlfile ) {
414 rc = gnutls_certificate_set_x509_crl_file(
415 ((ldap_pvt_tls_ctx_t*) lo->ldo_tls_ctx)->cred,
417 GNUTLS_X509_FMT_PEM );
418 if ( rc < 0 ) goto error_exit;
421 gnutls_dh_params_init (&((ldap_pvt_tls_ctx_t*)
422 lo->ldo_tls_ctx)->dh_params);
423 gnutls_dh_params_generate2 (((ldap_pvt_tls_ctx_t*)
424 lo->ldo_tls_ctx)->dh_params,
430 LDAP_FREE( ciphersuite );
431 LDAP_FREE( cacertfile );
432 LDAP_FREE( cacertdir );
433 LDAP_FREE( certfile );
434 LDAP_FREE( keyfile );
436 LDAP_FREE( crlfile );
442 * initialize the default context
445 ldap_pvt_tls_init_def_ctx( int is_server )
447 return ldap_int_tls_init_ctx( LDAP_INT_GLOBAL_OPT(), is_server );
450 static ldap_pvt_gnutls_session_t *
451 alloc_handle( void *ctx_arg, int is_server )
453 ldap_pvt_tls_ctx_t *ctx;
454 ldap_pvt_gnutls_session_t *session;
457 ctx = (ldap_pvt_tls_ctx_t *) ctx_arg;
459 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT();
460 if ( ldap_pvt_tls_init_def_ctx( is_server ) < 0 ) return NULL;
461 ctx = lo->ldo_tls_ctx;
464 session = ldap_pvt_gnutls_session_new( ctx, is_server );
465 if ( session == NULL ) {
466 Debug( LDAP_DEBUG_ANY,"TLS: can't create ssl handle.\n",0,0,0);
473 update_flags( Sockbuf *sb,
474 ldap_pvt_gnutls_session_t * session,
477 sb->sb_trans_needs_read = 0;
478 sb->sb_trans_needs_write = 0;
480 if ( rc != GNUTLS_E_INTERRUPTED && rc != GNUTLS_E_AGAIN )
483 switch (gnutls_record_get_direction (session->session)) {
485 sb->sb_trans_needs_read = 1;
488 sb->sb_trans_needs_write = 1;
495 * TLS support for LBER Sockbufs
499 ldap_pvt_gnutls_session_t *session;
500 Sockbuf_IO_Desc *sbiod;
504 sb_gtls_recv( gnutls_transport_ptr_t ptr, void *buf, size_t len )
508 if ( buf == NULL || len <= 0 ) return 0;
510 p = (struct tls_data *)ptr;
512 if ( p == NULL || p->sbiod == NULL ) {
516 return LBER_SBIOD_READ_NEXT( p->sbiod, buf, len );
520 sb_gtls_send( gnutls_transport_ptr_t ptr, const void *buf, size_t len )
524 if ( buf == NULL || len <= 0 ) return 0;
526 p = (struct tls_data *)ptr;
528 if ( p == NULL || p->sbiod == NULL ) {
532 return LBER_SBIOD_WRITE_NEXT( p->sbiod, (char *)buf, len );
536 sb_tls_setup( Sockbuf_IO_Desc *sbiod, void *arg )
539 ldap_pvt_gnutls_session_t *session = arg;
541 assert( sbiod != NULL );
543 p = LBER_MALLOC( sizeof( *p ) );
548 gnutls_transport_set_ptr( session->session, (gnutls_transport_ptr)p );
549 gnutls_transport_set_pull_function( session->session, sb_gtls_recv );
550 gnutls_transport_set_push_function( session->session, sb_gtls_send );
553 sbiod->sbiod_pvt = p;
558 sb_tls_remove( Sockbuf_IO_Desc *sbiod )
562 assert( sbiod != NULL );
563 assert( sbiod->sbiod_pvt != NULL );
565 p = (struct tls_data *)sbiod->sbiod_pvt;
566 gnutls_deinit ( p->session->session );
567 LBER_FREE( p->session );
568 LBER_FREE( sbiod->sbiod_pvt );
569 sbiod->sbiod_pvt = NULL;
574 sb_tls_close( Sockbuf_IO_Desc *sbiod )
578 assert( sbiod != NULL );
579 assert( sbiod->sbiod_pvt != NULL );
581 p = (struct tls_data *)sbiod->sbiod_pvt;
582 gnutls_bye ( p->session->session, GNUTLS_SHUT_RDWR );
587 sb_tls_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
591 assert( sbiod != NULL );
592 assert( sbiod->sbiod_pvt != NULL );
594 p = (struct tls_data *)sbiod->sbiod_pvt;
596 if ( opt == LBER_SB_OPT_GET_SSL ) {
597 *((ldap_pvt_gnutls_session_t **)arg) = p->session;
600 } else if ( opt == LBER_SB_OPT_DATA_READY ) {
601 if( gnutls_record_check_pending( p->session->session ) > 0 ) {
606 return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
610 sb_tls_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
616 assert( sbiod != NULL );
617 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
619 p = (struct tls_data *)sbiod->sbiod_pvt;
621 ret = gnutls_record_recv ( p->session->session, buf, len );
623 case GNUTLS_E_INTERRUPTED:
625 sbiod->sbiod_sb->sb_trans_needs_read = 1;
626 sock_errset(EWOULDBLOCK);
629 case GNUTLS_E_REHANDSHAKE:
630 for ( ret = gnutls_handshake ( p->session->session );
631 ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN;
632 ret = gnutls_handshake ( p->session->session ) );
633 sbiod->sbiod_sb->sb_trans_needs_read = 1;
637 sbiod->sbiod_sb->sb_trans_needs_read = 0;
643 sb_tls_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
649 assert( sbiod != NULL );
650 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
652 p = (struct tls_data *)sbiod->sbiod_pvt;
654 ret = gnutls_record_send ( p->session->session, (char *)buf, len );
656 if ( ret == GNUTLS_E_INTERRUPTED || ret == GNUTLS_E_AGAIN ) {
657 sbiod->sbiod_sb->sb_trans_needs_write = 1;
658 sock_errset(EWOULDBLOCK);
661 sbiod->sbiod_sb->sb_trans_needs_write = 0;
666 static Sockbuf_IO sb_tls_sbio =
668 sb_tls_setup, /* sbi_setup */
669 sb_tls_remove, /* sbi_remove */
670 sb_tls_ctrl, /* sbi_ctrl */
671 sb_tls_read, /* sbi_read */
672 sb_tls_write, /* sbi_write */
673 sb_tls_close /* sbi_close */
677 ldap_int_tls_cert_verify( ldap_pvt_gnutls_session_t *ssl )
679 unsigned int status = 0;
681 time_t now = time(0);
683 err = gnutls_certificate_verify_peers2( ssl->session, &status );
685 Debug( LDAP_DEBUG_ANY,"TLS: gnutls_certificate_verify_peers2 failed %d\n",
690 Debug( LDAP_DEBUG_TRACE,"TLS: peer cert untrusted or revoked (0x%x)\n",
694 if ( gnutls_certificate_expiration_time_peers( ssl->session ) < now ) {
695 Debug( LDAP_DEBUG_ANY, "TLS: peer certificate is expired\n",
699 if ( gnutls_certificate_activation_time_peers( ssl->session ) > now ) {
700 Debug( LDAP_DEBUG_ANY, "TLS: peer certificate not yet active\n",
708 * Call this to do a TLS connect on a sockbuf. ctx_arg can be
709 * a SSL_CTX * or NULL, in which case the default ctx is used.
713 * 0 - Success. Connection is ready for communication.
714 * <0 - Error. Can't create a TLS stream.
715 * >0 - Partial success.
716 * Do a select (using information from lber_pvt_sb_needs_{read,write}
721 ldap_int_tls_connect( LDAP *ld, LDAPConn *conn )
723 Sockbuf *sb = conn->lconn_sb;
725 ldap_pvt_gnutls_session_t *ssl;
727 if ( HAS_TLS( sb ) ) {
728 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
731 struct ldapoptions *lo;
732 ldap_pvt_tls_ctx_t *ctx;
734 ctx = ld->ld_options.ldo_tls_ctx;
736 ssl = alloc_handle( ctx, 0 );
738 if ( ssl == NULL ) return -1;
741 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
742 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
744 ber_sockbuf_add_io( sb, &sb_tls_sbio,
745 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
747 lo = LDAP_INT_GLOBAL_OPT();
749 ctx = lo->ldo_tls_ctx;
750 ldap_pvt_tls_ctx_ref( ctx );
751 ld->ld_options.ldo_tls_ctx = ctx;
753 if ( ld->ld_options.ldo_tls_connect_cb )
754 ld->ld_options.ldo_tls_connect_cb( ld, ssl, ctx,
755 ld->ld_options.ldo_tls_connect_arg );
756 if ( lo && lo->ldo_tls_connect_cb && lo->ldo_tls_connect_cb !=
757 ld->ld_options.ldo_tls_connect_cb )
758 lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg );
761 err = gnutls_handshake( ssl->session );
764 errno = WSAGetLastError();
768 if ( update_flags( sb, ssl, err )) {
772 if ( ld->ld_error ) {
773 LDAP_FREE( ld->ld_error );
775 ld->ld_error = LDAP_STRDUP(gnutls_strerror( err ));
777 if ( ld->ld_error ) __etoa(ld->ld_error);
780 Debug( LDAP_DEBUG_ANY,"TLS: can't connect: %s\n",
781 ld->ld_error ? ld->ld_error : "" ,0,0);
783 ber_sockbuf_remove_io( sb, &sb_tls_sbio,
784 LBER_SBIOD_LEVEL_TRANSPORT );
786 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
787 LBER_SBIOD_LEVEL_TRANSPORT );
792 if ( ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER ) {
793 err = ldap_int_tls_cert_verify( ssl );
794 if ( err && ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW )
801 * Call this to do a TLS accept on a sockbuf.
802 * Everything else is the same as with tls_connect.
805 ldap_pvt_tls_accept( Sockbuf *sb, void *ctx_arg )
808 ldap_pvt_gnutls_session_t *ssl;
810 if ( HAS_TLS( sb ) ) {
811 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
814 ssl = alloc_handle( ctx_arg, 1 );
815 if ( ssl == NULL ) return -1;
818 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
819 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
821 ber_sockbuf_add_io( sb, &sb_tls_sbio,
822 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
825 err = gnutls_handshake( ssl->session );
828 errno = WSAGetLastError();
831 if ( update_flags( sb, ssl, err )) return 1;
833 Debug( LDAP_DEBUG_ANY,"TLS: can't accept: %s.\n",
834 gnutls_strerror( err ),0,0 );
836 ber_sockbuf_remove_io( sb, &sb_tls_sbio,
837 LBER_SBIOD_LEVEL_TRANSPORT );
839 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
840 LBER_SBIOD_LEVEL_TRANSPORT );
844 if ( ssl->ctx->lo->ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER ) {
845 err = ldap_int_tls_cert_verify( ssl );
846 if ( err && ssl->ctx->lo->ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW )
854 ldap_pvt_tls_inplace ( Sockbuf *sb )
856 return HAS_TLS( sb ) ? 1 : 0;
860 ldap_tls_inplace( LDAP *ld )
864 if ( ld->ld_defconn && ld->ld_defconn->lconn_sb ) {
865 sb = ld->ld_defconn->lconn_sb;
867 } else if ( ld->ld_sb ) {
874 return ldap_pvt_tls_inplace( sb );
878 x509_cert_get_dn( struct berval *cert, struct berval *dn, int get_subject )
880 BerElementBuffer berbuf;
881 BerElement *ber = (BerElement *)&berbuf;
886 ber_init2( ber, cert, LBER_USE_DER );
887 tag = ber_skip_tag( ber, &len ); /* Sequence */
888 tag = ber_skip_tag( ber, &len ); /* Sequence */
889 tag = ber_skip_tag( ber, &len ); /* Context + Constructed (version) */
890 if ( tag == 0xa0 ) /* Version is optional */
891 tag = ber_get_int( ber, &i ); /* Int: Version */
892 tag = ber_get_int( ber, &i ); /* Int: Serial */
893 tag = ber_skip_tag( ber, &len ); /* Sequence: Signature */
894 ber_skip_data( ber, len );
895 if ( !get_subject ) {
896 tag = ber_peek_tag( ber, &len ); /* Sequence: Issuer DN */
898 tag = ber_skip_tag( ber, &len );
899 ber_skip_data( ber, len );
900 tag = ber_skip_tag( ber, &len ); /* Sequence: Validity */
901 ber_skip_data( ber, len );
902 tag = ber_peek_tag( ber, &len ); /* Sequence: Subject DN */
904 len = ber_ptrlen( ber );
905 dn->bv_val = cert->bv_val + len;
906 dn->bv_len = cert->bv_len - len;
910 tls_get_cert_dn( ldap_pvt_gnutls_session_t *session )
912 if ( !session->peer_der_dn.bv_val ) {
913 const gnutls_datum_t *peer_cert_list;
917 peer_cert_list = gnutls_certificate_get_peers( session->session,
919 if ( !peer_cert_list ) return LDAP_INVALID_CREDENTIALS;
921 bv.bv_len = peer_cert_list->size;
922 bv.bv_val = peer_cert_list->data;
924 x509_cert_get_dn( &bv, &session->peer_der_dn, 1 );
930 ldap_pvt_tls_get_peer_dn( void *s, struct berval *dn,
931 LDAPDN_rewrite_dummy *func, unsigned flags )
933 ldap_pvt_gnutls_session_t *session = s;
936 rc = tls_get_cert_dn( session );
939 rc = ldap_X509dn2bv( &session->peer_der_dn, dn,
940 (LDAPDN_rewrite_func *)func, flags);
944 /* what kind of hostname were we given? */
950 ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in )
952 ldap_pvt_gnutls_session_t *session = s;
954 const gnutls_datum_t *peer_cert_list;
957 char altname[NI_MAXHOST];
960 gnutls_x509_crt_t cert;
966 struct in6_addr addr;
970 int n, len1 = 0, len2 = 0;
972 time_t now = time(0);
974 if( ldap_int_hostname &&
975 ( !name_in || !strcasecmp( name_in, "localhost" ) ) )
977 name = ldap_int_hostname;
982 peer_cert_list = gnutls_certificate_get_peers( session->session,
984 if ( !peer_cert_list ) {
985 Debug( LDAP_DEBUG_ANY,
986 "TLS: unable to get peer certificate.\n",
988 /* If this was a fatal condition, things would have
989 * aborted long before now.
993 ret = gnutls_x509_crt_init( &cert );
995 return LDAP_LOCAL_ERROR;
996 ret = gnutls_x509_crt_import( cert, peer_cert_list, GNUTLS_X509_FMT_DER );
998 gnutls_x509_crt_deinit( cert );
999 return LDAP_LOCAL_ERROR;
1002 #ifdef LDAP_PF_INET6
1003 if (name[0] == '[' && strchr(name, ']')) {
1004 char *n2 = ldap_strdup(name+1);
1005 *strchr(n2, ']') = 2;
1006 if (inet_pton(AF_INET6, n2, &addr))
1011 if ((ptr = strrchr(name, '.')) && isdigit((unsigned char)ptr[1])) {
1012 if (inet_aton(name, (struct in_addr *)&addr)) ntype = IS_IP4;
1015 if (ntype == IS_DNS) {
1016 len1 = strlen(name);
1017 domain = strchr(name, '.');
1019 len2 = len1 - (domain-name);
1023 for ( i=0, ret=0; ret >= 0; i++ ) {
1024 altnamesize = sizeof(altname);
1025 ret = gnutls_x509_crt_get_subject_alt_name( cert, i,
1026 altname, &altnamesize, NULL );
1027 if ( ret < 0 ) break;
1030 if ( altnamesize == 0 ) continue;
1032 if ( ret == GNUTLS_SAN_DNSNAME ) {
1033 if (ntype != IS_DNS) continue;
1035 /* Is this an exact match? */
1036 if ((len1 == altnamesize) && !strncasecmp(name, altname, len1)) {
1040 /* Is this a wildcard match? */
1041 if (domain && (altname[0] == '*') && (altname[1] == '.') &&
1042 (len2 == altnamesize-1) && !strncasecmp(domain, &altname[1], len2))
1046 } else if ( ret == GNUTLS_SAN_IPADDRESS ) {
1047 if (ntype == IS_DNS) continue;
1049 #ifdef LDAP_PF_INET6
1050 if (ntype == IS_IP6 && altnamesize != sizeof(struct in6_addr)) {
1054 if (ntype == IS_IP4 && altnamesize != sizeof(struct in_addr)) {
1057 if (!memcmp(altname, &addr, altnamesize)) {
1065 altnamesize = sizeof(altname);
1066 ret = gnutls_x509_crt_get_dn_by_oid( cert, CN_OID,
1067 0, 0, altname, &altnamesize );
1069 Debug( LDAP_DEBUG_ANY,
1070 "TLS: unable to get common name from peer certificate.\n",
1072 ret = LDAP_CONNECT_ERROR;
1073 if ( ld->ld_error ) {
1074 LDAP_FREE( ld->ld_error );
1076 ld->ld_error = LDAP_STRDUP(
1077 _("TLS: unable to get CN from peer certificate"));
1080 ret = LDAP_LOCAL_ERROR;
1081 if ( len1 == altnamesize && strncasecmp(name, altname, altnamesize) == 0 ) {
1084 } else if (( altname[0] == '*' ) && ( altname[1] == '.' )) {
1085 /* Is this a wildcard match? */
1087 (len2 == altnamesize-1) && !strncasecmp(domain, &altname[1], len2)) {
1093 if( ret == LDAP_LOCAL_ERROR ) {
1094 altname[altnamesize] = '\0';
1095 Debug( LDAP_DEBUG_ANY, "TLS: hostname (%s) does not match "
1096 "common name in certificate (%s).\n",
1098 ret = LDAP_CONNECT_ERROR;
1099 if ( ld->ld_error ) {
1100 LDAP_FREE( ld->ld_error );
1102 ld->ld_error = LDAP_STRDUP(
1103 _("TLS: hostname does not match CN in peer certificate"));
1106 gnutls_x509_crt_deinit( cert );
1111 ldap_pvt_tls_get_peer_issuer( void *s )
1113 #if 0 /* currently unused; see ldap_pvt_tls_get_peer_dn() if needed */
1118 x = SSL_get_peer_certificate((ldap_pvt_gnutls_session_t *)s);
1120 if (!x) return NULL;
1122 xn = X509_get_issuer_name(x);
1123 p = LDAP_STRDUP(X509_NAME_oneline(xn, buf, sizeof(buf)));
1132 ldap_int_tls_config( LDAP *ld, int option, const char *arg )
1137 case LDAP_OPT_X_TLS_CACERTFILE:
1138 case LDAP_OPT_X_TLS_CACERTDIR:
1139 case LDAP_OPT_X_TLS_CERTFILE:
1140 case LDAP_OPT_X_TLS_KEYFILE:
1141 case LDAP_OPT_X_TLS_RANDOM_FILE:
1142 case LDAP_OPT_X_TLS_CIPHER_SUITE:
1143 case LDAP_OPT_X_TLS_DHFILE:
1144 case LDAP_OPT_X_TLS_CRLFILE:
1145 return ldap_pvt_tls_set_option( ld, option, (void *) arg );
1147 case LDAP_OPT_X_TLS_REQUIRE_CERT:
1148 case LDAP_OPT_X_TLS:
1150 if ( strcasecmp( arg, "never" ) == 0 ) {
1151 i = LDAP_OPT_X_TLS_NEVER ;
1153 } else if ( strcasecmp( arg, "demand" ) == 0 ) {
1154 i = LDAP_OPT_X_TLS_DEMAND ;
1156 } else if ( strcasecmp( arg, "allow" ) == 0 ) {
1157 i = LDAP_OPT_X_TLS_ALLOW ;
1159 } else if ( strcasecmp( arg, "try" ) == 0 ) {
1160 i = LDAP_OPT_X_TLS_TRY ;
1162 } else if ( ( strcasecmp( arg, "hard" ) == 0 ) ||
1163 ( strcasecmp( arg, "on" ) == 0 ) ||
1164 ( strcasecmp( arg, "yes" ) == 0) ||
1165 ( strcasecmp( arg, "true" ) == 0 ) )
1167 i = LDAP_OPT_X_TLS_HARD ;
1171 return ldap_pvt_tls_set_option( ld, option, &i );
1179 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
1181 struct ldapoptions *lo;
1184 assert( LDAP_VALID( ld ) );
1186 if( !LDAP_VALID( ld ) ) {
1187 return LDAP_OPT_ERROR;
1190 lo = &ld->ld_options;
1193 /* Get pointer to global option structure */
1194 lo = LDAP_INT_GLOBAL_OPT();
1196 return LDAP_NO_MEMORY;
1201 case LDAP_OPT_X_TLS:
1202 *(int *)arg = lo->ldo_tls_mode;
1204 case LDAP_OPT_X_TLS_CTX:
1205 *(void **)arg = lo->ldo_tls_ctx;
1206 if ( lo->ldo_tls_ctx ) {
1207 ldap_pvt_tls_ctx_ref( lo->ldo_tls_ctx );
1210 case LDAP_OPT_X_TLS_CACERTFILE:
1211 *(char **)arg = lo->ldo_tls_cacertfile ?
1212 LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL;
1214 case LDAP_OPT_X_TLS_CACERTDIR:
1215 *(char **)arg = lo->ldo_tls_cacertdir ?
1216 LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL;
1218 case LDAP_OPT_X_TLS_CERTFILE:
1219 *(char **)arg = lo->ldo_tls_certfile ?
1220 LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL;
1222 case LDAP_OPT_X_TLS_KEYFILE:
1223 *(char **)arg = lo->ldo_tls_keyfile ?
1224 LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL;
1226 case LDAP_OPT_X_TLS_DHFILE:
1227 *(char **)arg = lo->ldo_tls_dhfile ?
1228 LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL;
1230 case LDAP_OPT_X_TLS_CRLFILE:
1231 *(char **)arg = lo->ldo_tls_crlfile ?
1232 LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL;
1234 case LDAP_OPT_X_TLS_REQUIRE_CERT:
1235 *(int *)arg = lo->ldo_tls_require_cert;
1237 #ifdef HAVE_OPENSSL_CRL
1238 case LDAP_OPT_X_TLS_CRLCHECK:
1239 *(int *)arg = lo->ldo_tls_crlcheck;
1242 case LDAP_OPT_X_TLS_CIPHER_SUITE:
1243 *(char **)arg = lo->ldo_tls_ciphersuite ?
1244 LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL;
1246 case LDAP_OPT_X_TLS_RANDOM_FILE:
1247 *(char **)arg = NULL;
1249 case LDAP_OPT_X_TLS_SSL_CTX: {
1252 LDAPConn *conn = ld->ld_defconn;
1253 if ( conn != NULL ) {
1254 Sockbuf *sb = conn->lconn_sb;
1255 retval = ldap_pvt_tls_sb_ctx( sb );
1258 *(void **)arg = retval;
1261 case LDAP_OPT_X_TLS_CONNECT_CB:
1262 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
1264 case LDAP_OPT_X_TLS_CONNECT_ARG:
1265 *(void **)arg = lo->ldo_tls_connect_arg;
1274 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
1276 struct ldapoptions *lo;
1279 assert( LDAP_VALID( ld ) );
1281 if( !LDAP_VALID( ld ) ) {
1282 return LDAP_OPT_ERROR;
1285 lo = &ld->ld_options;
1288 /* Get pointer to global option structure */
1289 lo = LDAP_INT_GLOBAL_OPT();
1291 return LDAP_NO_MEMORY;
1296 case LDAP_OPT_X_TLS:
1297 if ( !arg ) return -1;
1299 switch( *(int *) arg ) {
1300 case LDAP_OPT_X_TLS_NEVER:
1301 case LDAP_OPT_X_TLS_DEMAND:
1302 case LDAP_OPT_X_TLS_ALLOW:
1303 case LDAP_OPT_X_TLS_TRY:
1304 case LDAP_OPT_X_TLS_HARD:
1306 lo->ldo_tls_mode = *(int *)arg;
1313 case LDAP_OPT_X_TLS_CTX:
1314 if ( lo->ldo_tls_ctx )
1315 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
1316 lo->ldo_tls_ctx = arg;
1317 ldap_pvt_tls_ctx_ref( lo->ldo_tls_ctx );
1319 case LDAP_OPT_X_TLS_CONNECT_CB:
1320 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
1322 case LDAP_OPT_X_TLS_CONNECT_ARG:
1323 lo->ldo_tls_connect_arg = arg;
1325 case LDAP_OPT_X_TLS_CACERTFILE:
1326 if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile );
1327 lo->ldo_tls_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1329 case LDAP_OPT_X_TLS_CACERTDIR:
1330 if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir );
1331 lo->ldo_tls_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1333 case LDAP_OPT_X_TLS_CERTFILE:
1334 if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile );
1335 lo->ldo_tls_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1337 case LDAP_OPT_X_TLS_KEYFILE:
1338 if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile );
1339 lo->ldo_tls_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1341 case LDAP_OPT_X_TLS_DHFILE:
1342 if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile );
1343 lo->ldo_tls_dhfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1345 case LDAP_OPT_X_TLS_CRLFILE:
1346 if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile );
1347 lo->ldo_tls_crlfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1349 case LDAP_OPT_X_TLS_REQUIRE_CERT:
1350 if ( !arg ) return -1;
1351 switch( *(int *) arg ) {
1352 case LDAP_OPT_X_TLS_NEVER:
1353 case LDAP_OPT_X_TLS_DEMAND:
1354 case LDAP_OPT_X_TLS_ALLOW:
1355 case LDAP_OPT_X_TLS_TRY:
1356 case LDAP_OPT_X_TLS_HARD:
1357 lo->ldo_tls_require_cert = * (int *) arg;
1361 #ifdef HAVE_OPENSSL_CRL
1362 case LDAP_OPT_X_TLS_CRLCHECK:
1363 if ( !arg ) return -1;
1364 switch( *(int *) arg ) {
1365 case LDAP_OPT_X_TLS_CRL_NONE:
1366 case LDAP_OPT_X_TLS_CRL_PEER:
1367 case LDAP_OPT_X_TLS_CRL_ALL:
1368 lo->ldo_tls_crlcheck = * (int *) arg;
1373 case LDAP_OPT_X_TLS_CIPHER_SUITE:
1374 if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite );
1375 lo->ldo_tls_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1378 case LDAP_OPT_X_TLS_RANDOM_FILE:
1382 case LDAP_OPT_X_TLS_NEWCTX:
1383 if ( !arg ) return -1;
1384 if ( lo->ldo_tls_ctx )
1385 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx );
1386 lo->ldo_tls_ctx = NULL;
1387 return ldap_int_tls_init_ctx( lo, *(int *)arg );
1395 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
1397 Sockbuf *sb = conn->lconn_sb;
1402 host = srv->lud_host;
1404 host = conn->lconn_server->lud_host;
1407 /* avoid NULL host */
1408 if( host == NULL ) {
1412 (void) ldap_pvt_tls_init();
1415 * Fortunately, the lib uses blocking io...
1417 if ( ldap_int_tls_connect( ld, conn ) < 0 ) {
1418 ld->ld_errno = LDAP_CONNECT_ERROR;
1419 return (ld->ld_errno);
1422 ssl = ldap_pvt_tls_sb_ctx( sb );
1423 assert( ssl != NULL );
1426 * compare host with name(s) in certificate
1428 if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER) {
1429 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
1430 if (ld->ld_errno != LDAP_SUCCESS) {
1431 return ld->ld_errno;
1435 return LDAP_SUCCESS;
1439 ldap_pvt_tls_sb_ctx( Sockbuf *sb )
1443 if (HAS_TLS( sb )) {
1444 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
1451 ldap_pvt_tls_get_strength( void *s )
1453 ldap_pvt_gnutls_session_t *session = s;
1454 gnutls_cipher_algorithm_t c;
1456 c = gnutls_cipher_get( session->session );
1457 return gnutls_cipher_get_key_size( c );
1461 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
1463 ldap_pvt_gnutls_session_t *session = s;
1464 const gnutls_datum_t *x;
1465 struct berval bv, der_dn;
1468 x = gnutls_certificate_get_ours( session->session );
1470 if (!x) return LDAP_INVALID_CREDENTIALS;
1472 bv.bv_val = x->data;
1473 bv.bv_len = x->size;
1475 x509_cert_get_dn( &bv, &der_dn, 1 );
1476 rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags );
1481 ldap_start_tls( LDAP *ld,
1482 LDAPControl **serverctrls,
1483 LDAPControl **clientctrls,
1486 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
1487 NULL, serverctrls, clientctrls, msgidp );
1491 ldap_install_tls( LDAP *ld )
1494 return LDAP_NOT_SUPPORTED;
1496 if ( ldap_tls_inplace( ld ) ) {
1497 return LDAP_LOCAL_ERROR;
1500 return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
1505 ldap_start_tls_s ( LDAP *ld,
1506 LDAPControl **serverctrls,
1507 LDAPControl **clientctrls )
1510 return LDAP_NOT_SUPPORTED;
1513 char *rspoid = NULL;
1514 struct berval *rspdata = NULL;
1516 /* XXYYZ: this initiates operation only on default connection! */
1518 if ( ldap_tls_inplace( ld ) ) {
1519 return LDAP_LOCAL_ERROR;
1522 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
1523 NULL, serverctrls, clientctrls, &rspoid, &rspdata );
1525 if ( rspoid != NULL ) {
1529 if ( rspdata != NULL ) {
1530 ber_bvfree( rspdata );
1533 if ( rc == LDAP_SUCCESS ) {
1534 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );
1541 /* These tags probably all belong in lber.h, but they're
1542 * not normally encountered when processing LDAP, so maybe
1543 * they belong somewhere else instead.
1546 #define LBER_TAG_OID ((ber_tag_t) 0x06UL)
1548 /* Tags for string types used in a DirectoryString.
1550 * Note that IA5string is not one of the defined choices for
1551 * DirectoryString in X.520, but it gets used for email AVAs.
1553 #define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL)
1554 #define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL)
1555 #define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL)
1556 #define LBER_TAG_IA5 ((ber_tag_t) 0x16UL)
1557 #define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL)
1558 #define LBER_TAG_BMP ((ber_tag_t) 0x1eUL)
1561 find_oid( struct berval *oid )
1565 for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) {
1566 if ( oids[i].oid.bv_len != oid->bv_len ) continue;
1567 if ( !strcmp( oids[i].oid.bv_val, oid->bv_val ))
1573 /* Convert a structured DN from an X.509 certificate into an LDAPV3 DN.
1574 * x509_name must be raw DER. If func is non-NULL, the
1575 * constructed DN will use numeric OIDs to identify attributeTypes,
1576 * and the func() will be invoked to rewrite the DN with the given
1579 * Otherwise the DN will use shortNames from a hardcoded table.
1583 ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func,
1588 LDAPAVA *newAVA, *baseAVA;
1589 BerElementBuffer berbuf;
1590 BerElement *ber = (BerElement *)&berbuf;
1591 char oids[8192], *oidptr = oids, *oidbuf = NULL;
1593 char *dn_end, *rdn_end;
1594 int i, navas, nrdns, rc = LDAP_SUCCESS;
1595 size_t dnsize, oidrem = sizeof(oids), oidsize = 0;
1601 struct berval Oid, Val, oid2, *in = x509_name;
1603 assert( bv != NULL );
1611 /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs.
1612 * An AVA is a SEQUENCE of attr and value.
1613 * Count the number of AVAs and RDNs
1615 ber_init2( ber, in, LBER_USE_DER );
1616 tag = ber_peek_tag( ber, &len );
1617 if ( tag != LBER_SEQUENCE )
1618 return LDAP_DECODING_ERROR;
1620 for ( tag = ber_first_element( ber, &len, &dn_end );
1622 tag = ber_next_element( ber, &len, dn_end )) {
1624 for ( tag = ber_first_element( ber, &len, &rdn_end );
1625 tag == LBER_SEQUENCE;
1626 tag = ber_next_element( ber, &len, rdn_end )) {
1627 tag = ber_skip_tag( ber, &len );
1628 ber_skip_data( ber, len );
1633 /* Allocate the DN/RDN/AVA stuff as a single block */
1634 dnsize = sizeof(LDAPRDN) * (nrdns+1);
1635 dnsize += sizeof(LDAPAVA *) * (navas+nrdns);
1636 dnsize += sizeof(LDAPAVA) * navas;
1637 if (dnsize > sizeof(ptrs)) {
1638 newDN = (LDAPDN)LDAP_MALLOC( dnsize );
1639 if ( newDN == NULL )
1640 return LDAP_NO_MEMORY;
1642 newDN = (LDAPDN)(char *)ptrs;
1645 newDN[nrdns] = NULL;
1646 newRDN = (LDAPRDN)(newDN + nrdns+1);
1647 newAVA = (LDAPAVA *)(newRDN + navas + nrdns);
1650 /* Rewind and start extracting */
1653 tag = ber_first_element( ber, &len, &dn_end );
1654 for ( i = nrdns - 1; i >= 0; i-- ) {
1657 for ( tag = ber_first_element( ber, &len, &rdn_end );
1658 tag == LBER_SEQUENCE;
1659 tag = ber_next_element( ber, &len, rdn_end )) {
1662 tag = ber_skip_tag( ber, &len );
1663 tag = ber_get_stringbv( ber, &Oid, 0 );
1664 if ( tag != LBER_TAG_OID ) {
1665 rc = LDAP_DECODING_ERROR;
1669 oid2.bv_val = oidptr;
1670 oid2.bv_len = oidrem;
1671 ber_decode_oid( &Oid, &oid2 );
1672 oidname = find_oid( &oid2 );
1674 newAVA->la_attr = oid2;
1675 oidptr += oid2.bv_len + 1;
1676 oidrem -= oid2.bv_len + 1;
1678 /* Running out of OID buffer space? */
1680 if ( oidsize == 0 ) {
1681 oidsize = sizeof(oids) * 2;
1683 oidbuf = LDAP_MALLOC( oidsize );
1684 if ( oidbuf == NULL ) goto nomem;
1688 oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 );
1689 if ( oidbuf == NULL ) goto nomem;
1690 /* Buffer moved! Fix AVA pointers */
1691 if ( old != oidbuf ) {
1693 long dif = oidbuf - old;
1695 for (a=baseAVA; a<=newAVA; a++){
1696 if (a->la_attr.bv_val >= old &&
1697 a->la_attr.bv_val <= (old + oidsize))
1698 a->la_attr.bv_val += dif;
1701 oidptr = oidbuf + oidsize - oidrem;
1708 newAVA->la_attr = oidname->oid;
1710 newAVA->la_attr = oidname->name;
1713 tag = ber_get_stringbv( ber, &Val, 0 );
1715 case LBER_TAG_UNIVERSAL:
1716 /* This uses 32-bit ISO 10646-1 */
1717 csize = 4; goto to_utf8;
1719 /* This uses 16-bit ISO 10646-1 */
1720 csize = 2; goto to_utf8;
1721 case LBER_TAG_TELETEX:
1722 /* This uses 8-bit, assume ISO 8859-1 */
1724 to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value );
1725 newAVA->la_flags |= LDAP_AVA_FREE_VALUE;
1726 if (rc != LDAP_SUCCESS) goto nomem;
1727 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1730 newAVA->la_flags = LDAP_AVA_NONPRINTABLE;
1731 /* This is already in UTF-8 encoding */
1733 case LBER_TAG_PRINTABLE:
1734 /* These are always 7-bit strings */
1735 newAVA->la_value = Val;
1739 newAVA->la_private = NULL;
1740 newAVA->la_flags = LDAP_AVA_STRING;
1744 tag = ber_next_element( ber, &len, dn_end );
1748 rc = func( newDN, flags, NULL );
1749 if ( rc != LDAP_SUCCESS )
1753 rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL );
1756 for (;baseAVA < newAVA; baseAVA++) {
1757 if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR)
1758 LDAP_FREE( baseAVA->la_attr.bv_val );
1759 if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE)
1760 LDAP_FREE( baseAVA->la_value.bv_val );
1764 LDAP_FREE( oidbuf );
1765 if ( newDN != (LDAPDN)(char *) ptrs )
1771 /* test driver - feed in a DER cert on stdin */
1772 main( int argc, char *argv ) {
1774 struct berval bv, bv2, dn;
1775 BerElementBuffer berbuf;
1776 BerElement *ber = (BerElement *)&berbuf;
1780 bv.bv_len = fread(buf, 1, sizeof(buf), stdin);
1783 ber_init2( ber, &bv, LBER_USE_DER );
1784 tag = ber_skip_tag( ber, &len ); /* Sequence */
1785 tag = ber_skip_tag( ber, &len ); /* Sequence */
1786 tag = ber_skip_tag( ber, &len ); /* Context + Constructed (version) */
1787 if ( tag == 0xa0 ) /* Version is optional */
1788 tag = ber_get_int( ber, &len ); /* Int: Version */
1789 tag = ber_get_int( ber, &len ); /* Int: Serial */
1790 tag = ber_skip_tag( ber, &len ); /* Sequence: Signature */
1791 tag = ber_skip_tag( ber, &len ); /* : Signature */
1792 ber_skip_data( ber, len );
1793 tag = ber_skip_tag( ber, &len ); /* : Signature */
1794 ber_skip_data( ber, len );
1795 tag = ber_peek_tag( ber, &len ); /* Sequence: Issuer DN */
1796 len = ber_ptrlen( ber );
1797 bv2.bv_val = bv.bv_val + len;
1798 bv2.bv_len = bv.bv_len - len;
1799 X509dn2bv( &bv2, &dn, NULL, 0 );
1800 printf( "Issuer: %s\n", dn.bv_val );
1804 #endif /* HAVE_GNUTLS */