1 /* tls.c - Handle tls/ssl using SSLeay or OpenSSL. */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2005 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>.
18 #include "ldap_config.h"
22 #include <ac/stdlib.h>
24 #include <ac/socket.h>
25 #include <ac/string.h>
28 #include <ac/unistd.h>
30 #include <ac/dirent.h>
37 #include <ldap_pvt_thread.h>
40 #ifdef HAVE_OPENSSL_SSL_H
41 #include <openssl/ssl.h>
42 #include <openssl/x509v3.h>
43 #include <openssl/err.h>
44 #include <openssl/rand.h>
45 #include <openssl/safestack.h>
46 #elif defined( HAVE_SSL_H )
50 static int tls_opt_trace = 1;
51 static char *tls_opt_certfile = NULL;
52 static char *tls_opt_keyfile = NULL;
53 static char *tls_opt_dhparamdir = NULL;
54 static char *tls_opt_cacertfile = NULL;
55 static char *tls_opt_cacertdir = NULL;
56 static int tls_opt_require_cert = LDAP_OPT_X_TLS_DEMAND;
57 #ifdef HAVE_OPENSSL_CRL
58 static int tls_opt_crlcheck = LDAP_OPT_X_TLS_CRL_NONE;
60 static char *tls_opt_ciphersuite = NULL;
61 static char *tls_opt_randfile = NULL;
62 static int tls_opt_dhparamdirlen;
64 #define HAS_TLS( sb ) ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO, \
65 (void *)&sb_tls_sbio )
67 static void tls_report_error( void );
69 static void tls_info_cb( const SSL *ssl, int where, int ret );
70 static int tls_verify_cb( int ok, X509_STORE_CTX *ctx );
71 static int tls_verify_ok( int ok, X509_STORE_CTX *ctx );
72 static RSA * tls_tmp_rsa_cb( SSL *ssl, int is_export, int key_length );
73 static STACK_OF(X509_NAME) * get_ca_list( char * bundle, char * dir );
75 static DH * tls_tmp_dh_cb( SSL *ssl, int is_export, int key_length );
77 static SSL_CTX *tls_def_ctx = NULL;
79 static int tls_seed_PRNG( const char *randfile );
83 * provide mutexes for the SSLeay library.
85 static ldap_pvt_thread_mutex_t tls_mutexes[CRYPTO_NUM_LOCKS];
87 static void tls_locking_cb( int mode, int type, const char *file, int line )
89 if ( mode & CRYPTO_LOCK ) {
90 ldap_pvt_thread_mutex_lock( &tls_mutexes[type] );
92 ldap_pvt_thread_mutex_unlock( &tls_mutexes[type] );
97 * an extra mutex for the default ctx.
100 static ldap_pvt_thread_mutex_t tls_def_ctx_mutex;
102 static void tls_init_threads( void )
106 for( i=0; i< CRYPTO_NUM_LOCKS ; i++ ) {
107 ldap_pvt_thread_mutex_init( &tls_mutexes[i] );
109 CRYPTO_set_locking_callback( tls_locking_cb );
110 /* FIXME: the thread id should be added somehow... */
112 ldap_pvt_thread_mutex_init( &tls_def_ctx_mutex );
114 #endif /* LDAP_R_COMPILE */
117 * Tear down the TLS subsystem. Should only be called once.
120 ldap_pvt_tls_destroy( void )
122 SSL_CTX_free(tls_def_ctx);
129 if ( tls_opt_certfile ) {
130 LDAP_FREE( tls_opt_certfile );
131 tls_opt_certfile = NULL;
133 if ( tls_opt_keyfile ) {
134 LDAP_FREE( tls_opt_keyfile );
135 tls_opt_keyfile = NULL;
137 if ( tls_opt_dhparamdir ) {
138 LDAP_FREE( tls_opt_dhparamdir );
139 tls_opt_dhparamdir = NULL;
141 if ( tls_opt_cacertfile ) {
142 LDAP_FREE( tls_opt_cacertfile );
143 tls_opt_cacertfile = NULL;
145 if ( tls_opt_cacertdir ) {
146 LDAP_FREE( tls_opt_cacertdir );
147 tls_opt_cacertdir = NULL;
149 if ( tls_opt_ciphersuite ) {
150 LDAP_FREE( tls_opt_ciphersuite );
151 tls_opt_ciphersuite = NULL;
153 if ( tls_opt_randfile ) {
154 LDAP_FREE( tls_opt_randfile );
155 tls_opt_randfile = NULL;
160 * Initialize TLS subsystem. Should be called only once.
163 ldap_pvt_tls_init( void )
165 static int tls_initialized = 0;
167 if ( tls_initialized++ ) return 0;
171 char *file = LDAP_STRDUP( tls_opt_randfile );
172 if ( file ) __atoe( file );
173 (void) tls_seed_PRNG( file );
177 (void) tls_seed_PRNG( tls_opt_randfile );
180 #ifdef LDAP_R_COMPILE
184 SSL_load_error_strings();
185 SSLeay_add_ssl_algorithms();
187 /* FIXME: mod_ssl does this */
188 X509V3_add_standard_extensions();
193 * initialize the default context
196 ldap_pvt_tls_init_def_ctx( void )
198 STACK_OF(X509_NAME) *calist;
200 char *ciphersuite = tls_opt_ciphersuite;
201 char *cacertfile = tls_opt_cacertfile;
202 char *cacertdir = tls_opt_cacertdir;
203 char *certfile = tls_opt_certfile;
204 char *keyfile = tls_opt_keyfile;
206 #ifdef LDAP_R_COMPILE
207 ldap_pvt_thread_mutex_lock( &tls_def_ctx_mutex );
209 if (( !cacertfile && !cacertdir ) || !certfile || !keyfile )
210 return LDAP_NOT_SUPPORTED;
213 /* This ASCII/EBCDIC handling is a real pain! */
215 ciphersuite = LDAP_STRDUP( ciphersuite );
216 __atoe( ciphersuite );
219 cacertfile = LDAP_STRDUP( cacertfile );
220 __atoe( cacertfile );
223 cacertdir = LDAP_STRDUP( cacertdir );
227 certfile = LDAP_STRDUP( certfile );
231 keyfile = LDAP_STRDUP( keyfile );
235 if ( tls_def_ctx == NULL ) {
237 tls_def_ctx = SSL_CTX_new( SSLv23_method() );
238 if ( tls_def_ctx == NULL ) {
239 Debug( LDAP_DEBUG_ANY,
240 "TLS: could not allocate default ctx (%lu).\n",
241 ERR_peek_error(),0,0);
246 SSL_CTX_set_session_id_context( tls_def_ctx,
247 (const unsigned char *) "OpenLDAP", sizeof("OpenLDAP")-1 );
249 if ( tls_opt_ciphersuite &&
250 !SSL_CTX_set_cipher_list( tls_def_ctx, ciphersuite ) )
252 Debug( LDAP_DEBUG_ANY,
253 "TLS: could not set cipher list %s.\n",
254 tls_opt_ciphersuite, 0, 0 );
260 if (tls_opt_cacertfile != NULL || tls_opt_cacertdir != NULL) {
261 if ( !SSL_CTX_load_verify_locations( tls_def_ctx,
262 cacertfile, cacertdir ) ||
263 !SSL_CTX_set_default_verify_paths( tls_def_ctx ) )
265 Debug( LDAP_DEBUG_ANY, "TLS: "
266 "could not load verify locations (file:`%s',dir:`%s').\n",
267 tls_opt_cacertfile ? tls_opt_cacertfile : "",
268 tls_opt_cacertdir ? tls_opt_cacertdir : "",
275 calist = get_ca_list( cacertfile, cacertdir );
277 Debug( LDAP_DEBUG_ANY, "TLS: "
278 "could not load client CA list (file:`%s',dir:`%s').\n",
279 tls_opt_cacertfile ? tls_opt_cacertfile : "",
280 tls_opt_cacertdir ? tls_opt_cacertdir : "",
287 SSL_CTX_set_client_CA_list( tls_def_ctx, calist );
290 if ( tls_opt_keyfile &&
291 !SSL_CTX_use_PrivateKey_file( tls_def_ctx,
292 keyfile, SSL_FILETYPE_PEM ) )
294 Debug( LDAP_DEBUG_ANY,
295 "TLS: could not use key file `%s'.\n",
296 tls_opt_keyfile,0,0);
302 if ( tls_opt_certfile &&
303 !SSL_CTX_use_certificate_file( tls_def_ctx,
304 certfile, SSL_FILETYPE_PEM ) )
306 Debug( LDAP_DEBUG_ANY,
307 "TLS: could not use certificate `%s'.\n",
308 tls_opt_certfile,0,0);
314 if ( ( tls_opt_certfile || tls_opt_keyfile ) &&
315 !SSL_CTX_check_private_key( tls_def_ctx ) )
317 Debug( LDAP_DEBUG_ANY,
318 "TLS: private key mismatch.\n",
325 if ( tls_opt_trace ) {
326 SSL_CTX_set_info_callback( tls_def_ctx, tls_info_cb );
330 if ( tls_opt_require_cert ) {
332 if ( tls_opt_require_cert == LDAP_OPT_X_TLS_DEMAND ||
333 tls_opt_require_cert == LDAP_OPT_X_TLS_HARD ) {
334 i |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
338 SSL_CTX_set_verify( tls_def_ctx, i,
339 tls_opt_require_cert == LDAP_OPT_X_TLS_ALLOW ?
340 tls_verify_ok : tls_verify_cb );
341 SSL_CTX_set_tmp_rsa_callback( tls_def_ctx, tls_tmp_rsa_cb );
342 SSL_CTX_set_tmp_dh_callback( tls_def_ctx, tls_tmp_dh_cb );
343 #ifdef HAVE_OPENSSL_CRL
344 if ( tls_opt_crlcheck ) {
345 X509_STORE *x509_s = SSL_CTX_get_cert_store( tls_def_ctx );
346 if ( tls_opt_crlcheck == LDAP_OPT_X_TLS_CRL_PEER ) {
347 X509_STORE_set_flags( x509_s, X509_V_FLAG_CRL_CHECK );
348 } else if ( tls_opt_crlcheck == LDAP_OPT_X_TLS_CRL_ALL ) {
349 X509_STORE_set_flags( x509_s,
350 X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL );
356 if ( rc == -1 && tls_def_ctx != NULL ) {
357 SSL_CTX_free( tls_def_ctx );
361 LDAP_FREE( ciphersuite );
362 LDAP_FREE( cacertfile );
363 LDAP_FREE( cacertdir );
364 LDAP_FREE( certfile );
365 LDAP_FREE( keyfile );
367 #ifdef LDAP_R_COMPILE
368 ldap_pvt_thread_mutex_unlock( &tls_def_ctx_mutex );
373 static STACK_OF(X509_NAME) *
374 get_ca_list( char * bundle, char * dir )
376 STACK_OF(X509_NAME) *ca_list = NULL;
379 ca_list = SSL_load_client_CA_file( bundle );
381 #if defined(HAVE_DIRENT_H) || defined(dirent)
386 ca_list = sk_X509_NAME_new_null();
389 if ( !SSL_add_dir_cert_subjects_to_stack( ca_list, dir ) &&
391 sk_X509_NAME_free( ca_list );
400 alloc_handle( void *ctx_arg )
406 ctx = (SSL_CTX *) ctx_arg;
408 if ( ldap_pvt_tls_init_def_ctx() < 0 ) return NULL;
412 ssl = SSL_new( ctx );
414 Debug( LDAP_DEBUG_ANY,"TLS: can't create ssl handle.\n",0,0,0);
421 update_flags( Sockbuf *sb, SSL * ssl, int rc )
423 int err = SSL_get_error(ssl, rc);
425 sb->sb_trans_needs_read = 0;
426 sb->sb_trans_needs_write = 0;
428 if (err == SSL_ERROR_WANT_READ) {
429 sb->sb_trans_needs_read = 1;
432 } else if (err == SSL_ERROR_WANT_WRITE) {
433 sb->sb_trans_needs_write = 1;
436 } else if (err == SSL_ERROR_WANT_CONNECT) {
443 * TLS support for LBER Sockbufs
448 Sockbuf_IO_Desc *sbiod;
451 static BIO_METHOD sb_tls_bio_method;
454 sb_tls_setup( Sockbuf_IO_Desc *sbiod, void *arg )
459 assert( sbiod != NULL );
461 p = LBER_MALLOC( sizeof( *p ) );
468 bio = BIO_new( &sb_tls_bio_method );
469 bio->ptr = (void *)p;
470 SSL_set_bio( p->ssl, bio, bio );
471 sbiod->sbiod_pvt = p;
476 sb_tls_remove( Sockbuf_IO_Desc *sbiod )
480 assert( sbiod != NULL );
481 assert( sbiod->sbiod_pvt != NULL );
483 p = (struct tls_data *)sbiod->sbiod_pvt;
485 LBER_FREE( sbiod->sbiod_pvt );
486 sbiod->sbiod_pvt = NULL;
491 sb_tls_close( Sockbuf_IO_Desc *sbiod )
495 assert( sbiod != NULL );
496 assert( sbiod->sbiod_pvt != NULL );
498 p = (struct tls_data *)sbiod->sbiod_pvt;
499 SSL_shutdown( p->ssl );
504 sb_tls_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
508 assert( sbiod != NULL );
509 assert( sbiod->sbiod_pvt != NULL );
511 p = (struct tls_data *)sbiod->sbiod_pvt;
513 if ( opt == LBER_SB_OPT_GET_SSL ) {
514 *((SSL **)arg) = p->ssl;
517 } else if ( opt == LBER_SB_OPT_DATA_READY ) {
518 if( SSL_pending( p->ssl ) > 0 ) {
523 return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
527 sb_tls_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
533 assert( sbiod != NULL );
534 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
536 p = (struct tls_data *)sbiod->sbiod_pvt;
538 ret = SSL_read( p->ssl, (char *)buf, len );
540 errno = WSAGetLastError();
542 err = SSL_get_error( p->ssl, ret );
543 if (err == SSL_ERROR_WANT_READ ) {
544 sbiod->sbiod_sb->sb_trans_needs_read = 1;
548 sbiod->sbiod_sb->sb_trans_needs_read = 0;
553 sb_tls_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
559 assert( sbiod != NULL );
560 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
562 p = (struct tls_data *)sbiod->sbiod_pvt;
564 ret = SSL_write( p->ssl, (char *)buf, len );
566 errno = WSAGetLastError();
568 err = SSL_get_error( p->ssl, ret );
569 if (err == SSL_ERROR_WANT_WRITE ) {
570 sbiod->sbiod_sb->sb_trans_needs_write = 1;
574 sbiod->sbiod_sb->sb_trans_needs_write = 0;
579 static Sockbuf_IO sb_tls_sbio =
581 sb_tls_setup, /* sbi_setup */
582 sb_tls_remove, /* sbi_remove */
583 sb_tls_ctrl, /* sbi_ctrl */
584 sb_tls_read, /* sbi_read */
585 sb_tls_write, /* sbi_write */
586 sb_tls_close /* sbi_close */
590 sb_tls_bio_create( BIO *b ) {
599 sb_tls_bio_destroy( BIO *b )
601 if ( b == NULL ) return 0;
603 b->ptr = NULL; /* sb_tls_remove() will free it */
610 sb_tls_bio_read( BIO *b, char *buf, int len )
615 if ( buf == NULL || len <= 0 ) return 0;
617 p = (struct tls_data *)b->ptr;
619 if ( p == NULL || p->sbiod == NULL ) {
623 ret = LBER_SBIOD_READ_NEXT( p->sbiod, buf, len );
625 BIO_clear_retry_flags( b );
628 if ( err == EAGAIN || err == EWOULDBLOCK ) {
629 BIO_set_retry_read( b );
637 sb_tls_bio_write( BIO *b, const char *buf, int len )
642 if ( buf == NULL || len <= 0 ) return 0;
644 p = (struct tls_data *)b->ptr;
646 if ( p == NULL || p->sbiod == NULL ) {
650 ret = LBER_SBIOD_WRITE_NEXT( p->sbiod, (char *)buf, len );
652 BIO_clear_retry_flags( b );
655 if ( err == EAGAIN || err == EWOULDBLOCK ) {
656 BIO_set_retry_write( b );
664 sb_tls_bio_ctrl( BIO *b, int cmd, long num, void *ptr )
666 if ( cmd == BIO_CTRL_FLUSH ) {
667 /* The OpenSSL library needs this */
674 sb_tls_bio_gets( BIO *b, char *buf, int len )
680 sb_tls_bio_puts( BIO *b, const char *str )
682 return sb_tls_bio_write( b, str, strlen( str ) );
685 static BIO_METHOD sb_tls_bio_method =
687 ( 100 | 0x400 ), /* it's a source/sink BIO */
699 * Call this to do a TLS connect on a sockbuf. ctx_arg can be
700 * a SSL_CTX * or NULL, in which case the default ctx is used.
704 * 0 - Success. Connection is ready for communication.
705 * <0 - Error. Can't create a TLS stream.
706 * >0 - Partial success.
707 * Do a select (using information from lber_pvt_sb_needs_{read,write}
712 ldap_int_tls_connect( LDAP *ld, LDAPConn *conn )
714 Sockbuf *sb = conn->lconn_sb;
718 if ( HAS_TLS( sb ) ) {
719 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
722 struct ldapoptions *lo;
723 void *ctx = ld->ld_defconn
724 ? ld->ld_defconn->lconn_tls_ctx : NULL;
726 ssl = alloc_handle( ctx );
728 if ( ssl == NULL ) return -1;
731 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
732 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
734 ber_sockbuf_add_io( sb, &sb_tls_sbio,
735 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
739 conn->lconn_tls_ctx = tls_def_ctx;
741 lo = &ld->ld_options;
742 if ( lo->ldo_tls_connect_cb )
743 lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg );
744 lo = LDAP_INT_GLOBAL_OPT();
745 if ( lo && lo->ldo_tls_connect_cb )
746 lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg );
749 err = SSL_connect( ssl );
752 errno = WSAGetLastError();
756 if ( update_flags( sb, ssl, err )) {
760 if ((err = ERR_peek_error())) {
763 if ( ld->ld_error ) {
764 LDAP_FREE( ld->ld_error );
766 ld->ld_error = LDAP_STRDUP(ERR_error_string(err, buf));
768 if ( ld->ld_error ) __etoa(ld->ld_error);
772 Debug( LDAP_DEBUG_ANY,"TLS: can't connect.\n",0,0,0);
774 ber_sockbuf_remove_io( sb, &sb_tls_sbio,
775 LBER_SBIOD_LEVEL_TRANSPORT );
777 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
778 LBER_SBIOD_LEVEL_TRANSPORT );
787 * Call this to do a TLS accept on a sockbuf.
788 * Everything else is the same as with tls_connect.
791 ldap_pvt_tls_accept( Sockbuf *sb, void *ctx_arg )
796 if ( HAS_TLS( sb ) ) {
797 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl );
800 ssl = alloc_handle( ctx_arg );
801 if ( ssl == NULL ) return -1;
804 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
805 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" );
807 ber_sockbuf_add_io( sb, &sb_tls_sbio,
808 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl );
811 err = SSL_accept( ssl );
814 errno = WSAGetLastError();
817 if ( update_flags( sb, ssl, err )) return 1;
819 Debug( LDAP_DEBUG_ANY,"TLS: can't accept.\n",0,0,0 );
822 ber_sockbuf_remove_io( sb, &sb_tls_sbio,
823 LBER_SBIOD_LEVEL_TRANSPORT );
825 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
826 LBER_SBIOD_LEVEL_TRANSPORT );
835 ldap_pvt_tls_inplace ( Sockbuf *sb )
837 return HAS_TLS( sb ) ? 1 : 0;
841 ldap_tls_inplace( LDAP *ld )
845 if ( ld->ld_defconn && ld->ld_defconn->lconn_sb ) {
846 sb = ld->ld_defconn->lconn_sb;
848 } else if ( ld->ld_sb ) {
855 return ldap_pvt_tls_inplace( sb );
859 tls_get_cert( SSL *s )
861 /* If peer cert was bad, treat as if no cert was given */
862 if (SSL_get_verify_result(s)) {
863 /* If we can send an alert, do so */
864 if (SSL_version(s) != SSL2_VERSION) {
865 ssl3_send_alert(s,SSL3_AL_WARNING,SSL3_AD_BAD_CERTIFICATE);
869 return SSL_get_peer_certificate(s);
873 ldap_pvt_tls_get_peer_dn( void *s, struct berval *dn,
874 LDAPDN_rewrite_dummy *func, unsigned flags )
880 x = tls_get_cert((SSL *)s);
882 if (!x) return LDAP_INVALID_CREDENTIALS;
884 xn = X509_get_subject_name(x);
885 rc = ldap_X509dn2bv(xn, dn, (LDAPDN_rewrite_func *)func, flags);
891 ldap_pvt_tls_get_peer_hostname( void *s )
898 x = tls_get_cert((SSL *)s);
901 xn = X509_get_subject_name(x);
903 ret = X509_NAME_get_text_by_NID(xn, NID_commonName, buf, sizeof(buf));
909 p = LDAP_STRDUP(buf);
914 /* what kind of hostname were we given? */
920 ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in )
922 int i, ret = LDAP_LOCAL_ERROR;
928 struct in6_addr addr;
933 if( ldap_int_hostname &&
934 ( !name_in || !strcasecmp( name_in, "localhost" ) ) )
936 name = ldap_int_hostname;
941 x = tls_get_cert((SSL *)s);
943 Debug( LDAP_DEBUG_ANY,
944 "TLS: unable to get peer certificate.\n",
946 /* If this was a fatal condition, things would have
947 * aborted long before now.
953 if (name[0] == '[' && strchr(name, ']')) {
954 char *n2 = ldap_strdup(name+1);
955 *strchr(n2, ']') = 2;
956 if (inet_pton(AF_INET6, n2, &addr))
961 if ((ptr = strrchr(name, '.')) && isdigit((unsigned char)ptr[1])) {
962 if (inet_aton(name, (struct in_addr *)&addr)) ntype = IS_IP4;
965 i = X509_get_ext_by_NID(x, NID_subject_alt_name, -1);
968 STACK_OF(GENERAL_NAME) *alt;
970 ex = X509_get_ext(x, i);
971 alt = X509V3_EXT_d2i(ex);
973 int n, len1 = 0, len2 = 0;
977 if (ntype == IS_DNS) {
979 domain = strchr(name, '.');
981 len2 = len1 - (domain-name);
984 n = sk_GENERAL_NAME_num(alt);
985 for (i=0; i<n; i++) {
988 gn = sk_GENERAL_NAME_value(alt, i);
989 if (gn->type == GEN_DNS) {
990 if (ntype != IS_DNS) continue;
992 sn = (char *) ASN1_STRING_data(gn->d.ia5);
993 sl = ASN1_STRING_length(gn->d.ia5);
996 if (sl == 0) continue;
998 /* Is this an exact match? */
999 if ((len1 == sl) && !strncasecmp(name, sn, len1)) {
1003 /* Is this a wildcard match? */
1004 if (domain && (sn[0] == '*') && (sn[1] == '.') &&
1005 (len2 == sl-1) && !strncasecmp(domain, &sn[1], len2))
1010 } else if (gn->type == GEN_IPADD) {
1011 if (ntype == IS_DNS) continue;
1013 sn = (char *) ASN1_STRING_data(gn->d.ia5);
1014 sl = ASN1_STRING_length(gn->d.ia5);
1016 #ifdef LDAP_PF_INET6
1017 if (ntype == IS_IP6 && sl != sizeof(struct in6_addr)) {
1021 if (ntype == IS_IP4 && sl != sizeof(struct in_addr)) {
1024 if (!memcmp(sn, &addr, sl)) {
1030 GENERAL_NAMES_free(alt);
1031 if (i < n) { /* Found a match */
1037 if (ret != LDAP_SUCCESS) {
1042 xn = X509_get_subject_name(x);
1043 if( X509_NAME_get_text_by_NID( xn, NID_commonName,
1044 buf, sizeof(buf)) == -1)
1046 Debug( LDAP_DEBUG_ANY,
1047 "TLS: unable to get common name from peer certificate.\n",
1049 ret = LDAP_CONNECT_ERROR;
1050 if ( ld->ld_error ) {
1051 LDAP_FREE( ld->ld_error );
1053 ld->ld_error = LDAP_STRDUP(
1054 _("TLS: unable to get CN from peer certificate"));
1056 } else if (strcasecmp(name, buf) == 0 ) {
1059 } else if (( buf[0] == '*' ) && ( buf[1] == '.' )) {
1060 char *domain = strchr(name, '.');
1066 dlen = sl - (domain-name);
1069 /* Is this a wildcard match? */
1070 if ((dlen == sl-1) && !strncasecmp(domain, &buf[1], dlen)) {
1076 if( ret == LDAP_LOCAL_ERROR ) {
1077 Debug( LDAP_DEBUG_ANY, "TLS: hostname (%s) does not match "
1078 "common name in certificate (%s).\n",
1080 ret = LDAP_CONNECT_ERROR;
1081 if ( ld->ld_error ) {
1082 LDAP_FREE( ld->ld_error );
1084 ld->ld_error = LDAP_STRDUP(
1085 _("TLS: hostname does not match CN in peer certificate"));
1093 ldap_pvt_tls_get_peer_issuer( void *s )
1095 #if 0 /* currently unused; see ldap_pvt_tls_get_peer_dn() if needed */
1100 x = SSL_get_peer_certificate((SSL *)s);
1102 if (!x) return NULL;
1104 xn = X509_get_issuer_name(x);
1105 p = LDAP_STRDUP(X509_NAME_oneline(xn, buf, sizeof(buf)));
1114 ldap_int_tls_config( LDAP *ld, int option, const char *arg )
1119 case LDAP_OPT_X_TLS_CACERTFILE:
1120 case LDAP_OPT_X_TLS_CACERTDIR:
1121 case LDAP_OPT_X_TLS_CERTFILE:
1122 case LDAP_OPT_X_TLS_KEYFILE:
1123 case LDAP_OPT_X_TLS_RANDOM_FILE:
1124 case LDAP_OPT_X_TLS_CIPHER_SUITE:
1125 case LDAP_OPT_X_TLS_DHPARAMDIR:
1126 return ldap_pvt_tls_set_option( ld, option, (void *) arg );
1128 case LDAP_OPT_X_TLS_REQUIRE_CERT:
1129 case LDAP_OPT_X_TLS:
1131 if ( strcasecmp( arg, "never" ) == 0 ) {
1132 i = LDAP_OPT_X_TLS_NEVER ;
1134 } else if ( strcasecmp( arg, "demand" ) == 0 ) {
1135 i = LDAP_OPT_X_TLS_DEMAND ;
1137 } else if ( strcasecmp( arg, "allow" ) == 0 ) {
1138 i = LDAP_OPT_X_TLS_ALLOW ;
1140 } else if ( strcasecmp( arg, "try" ) == 0 ) {
1141 i = LDAP_OPT_X_TLS_TRY ;
1143 } else if ( ( strcasecmp( arg, "hard" ) == 0 ) ||
1144 ( strcasecmp( arg, "on" ) == 0 ) ||
1145 ( strcasecmp( arg, "yes" ) == 0) ||
1146 ( strcasecmp( arg, "true" ) == 0 ) )
1148 i = LDAP_OPT_X_TLS_HARD ;
1152 return ldap_pvt_tls_set_option( ld, option, &i );
1155 #ifdef HAVE_OPENSSL_CRL
1156 case LDAP_OPT_X_TLS_CRLCHECK:
1158 if ( strcasecmp( arg, "none" ) == 0 ) {
1159 i = LDAP_OPT_X_TLS_CRL_NONE ;
1160 } else if ( strcasecmp( arg, "peer" ) == 0 ) {
1161 i = LDAP_OPT_X_TLS_CRL_PEER ;
1162 } else if ( strcasecmp( arg, "all" ) == 0 ) {
1163 i = LDAP_OPT_X_TLS_CRL_ALL ;
1166 return ldap_pvt_tls_set_option( ld, option, &i );
1175 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg )
1177 struct ldapoptions *lo;
1180 assert( LDAP_VALID( ld ) );
1182 if( !LDAP_VALID( ld ) ) {
1183 return LDAP_OPT_ERROR;
1186 lo = &ld->ld_options;
1189 /* Get pointer to global option structure */
1190 lo = LDAP_INT_GLOBAL_OPT();
1192 return LDAP_NO_MEMORY;
1197 case LDAP_OPT_X_TLS:
1198 *(int *)arg = lo->ldo_tls_mode;
1200 case LDAP_OPT_X_TLS_CTX:
1202 *(void **)arg = (void *) tls_def_ctx;
1204 *(void **)arg = ld->ld_defconn->lconn_tls_ctx;
1207 case LDAP_OPT_X_TLS_CACERTFILE:
1208 *(char **)arg = tls_opt_cacertfile ?
1209 LDAP_STRDUP( tls_opt_cacertfile ) : NULL;
1211 case LDAP_OPT_X_TLS_CACERTDIR:
1212 *(char **)arg = tls_opt_cacertdir ?
1213 LDAP_STRDUP( tls_opt_cacertdir ) : NULL;
1215 case LDAP_OPT_X_TLS_CERTFILE:
1216 *(char **)arg = tls_opt_certfile ?
1217 LDAP_STRDUP( tls_opt_certfile ) : NULL;
1219 case LDAP_OPT_X_TLS_KEYFILE:
1220 *(char **)arg = tls_opt_keyfile ?
1221 LDAP_STRDUP( tls_opt_keyfile ) : NULL;
1223 case LDAP_OPT_X_TLS_DHPARAMDIR:
1224 *(char **)arg = tls_opt_dhparamdir ?
1225 LDAP_STRDUP( tls_opt_dhparamdir ) : NULL;
1227 case LDAP_OPT_X_TLS_REQUIRE_CERT:
1228 *(int *)arg = tls_opt_require_cert;
1230 #ifdef HAVE_OPENSSL_CRL
1231 case LDAP_OPT_X_TLS_CRLCHECK:
1232 *(int *)arg = tls_opt_crlcheck;
1235 case LDAP_OPT_X_TLS_RANDOM_FILE:
1236 *(char **)arg = tls_opt_randfile ?
1237 LDAP_STRDUP( tls_opt_randfile ) : NULL;
1239 case LDAP_OPT_X_TLS_SSL_CTX: {
1242 LDAPConn *conn = ld->ld_defconn;
1243 if ( conn != NULL ) {
1244 Sockbuf *sb = conn->lconn_sb;
1245 retval = ldap_pvt_tls_sb_ctx( sb );
1248 *(void **)arg = retval;
1251 case LDAP_OPT_X_TLS_CONNECT_CB:
1252 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb;
1254 case LDAP_OPT_X_TLS_CONNECT_ARG:
1255 *(void **)arg = lo->ldo_tls_connect_arg;
1264 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg )
1266 struct ldapoptions *lo;
1269 assert( LDAP_VALID( ld ) );
1271 if( !LDAP_VALID( ld ) ) {
1272 return LDAP_OPT_ERROR;
1275 lo = &ld->ld_options;
1278 /* Get pointer to global option structure */
1279 lo = LDAP_INT_GLOBAL_OPT();
1281 return LDAP_NO_MEMORY;
1286 case LDAP_OPT_X_TLS:
1287 switch( *(int *) arg ) {
1288 case LDAP_OPT_X_TLS_NEVER:
1289 case LDAP_OPT_X_TLS_DEMAND:
1290 case LDAP_OPT_X_TLS_ALLOW:
1291 case LDAP_OPT_X_TLS_TRY:
1292 case LDAP_OPT_X_TLS_HARD:
1294 lo->ldo_tls_mode = *(int *)arg;
1301 case LDAP_OPT_X_TLS_CTX:
1303 tls_def_ctx = (SSL_CTX *) arg;
1306 ld->ld_defconn->lconn_tls_ctx = arg;
1309 case LDAP_OPT_X_TLS_CONNECT_CB:
1310 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg;
1312 case LDAP_OPT_X_TLS_CONNECT_ARG:
1313 lo->ldo_tls_connect_arg = arg;
1322 case LDAP_OPT_X_TLS_CACERTFILE:
1323 if ( tls_opt_cacertfile ) LDAP_FREE( tls_opt_cacertfile );
1324 tls_opt_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1326 case LDAP_OPT_X_TLS_CACERTDIR:
1327 if ( tls_opt_cacertdir ) LDAP_FREE( tls_opt_cacertdir );
1328 tls_opt_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1330 case LDAP_OPT_X_TLS_CERTFILE:
1331 if ( tls_opt_certfile ) LDAP_FREE( tls_opt_certfile );
1332 tls_opt_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1334 case LDAP_OPT_X_TLS_KEYFILE:
1335 if ( tls_opt_keyfile ) LDAP_FREE( tls_opt_keyfile );
1336 tls_opt_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1338 case LDAP_OPT_X_TLS_DHPARAMDIR:
1339 if ( tls_opt_dhparamdir ) LDAP_FREE( tls_opt_dhparamdir );
1340 tls_opt_dhparamdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1341 if ( tls_opt_dhparamdir )
1342 tls_opt_dhparamdirlen = strlen( tls_opt_dhparamdir );
1344 case LDAP_OPT_X_TLS_REQUIRE_CERT:
1345 switch( *(int *) arg ) {
1346 case LDAP_OPT_X_TLS_NEVER:
1347 case LDAP_OPT_X_TLS_DEMAND:
1348 case LDAP_OPT_X_TLS_ALLOW:
1349 case LDAP_OPT_X_TLS_TRY:
1350 case LDAP_OPT_X_TLS_HARD:
1351 tls_opt_require_cert = * (int *) arg;
1355 #ifdef HAVE_OPENSSL_CRL
1356 case LDAP_OPT_X_TLS_CRLCHECK:
1357 switch( *(int *) arg ) {
1358 case LDAP_OPT_X_TLS_CRL_NONE:
1359 case LDAP_OPT_X_TLS_CRL_PEER:
1360 case LDAP_OPT_X_TLS_CRL_ALL:
1361 tls_opt_crlcheck = * (int *) arg;
1366 case LDAP_OPT_X_TLS_CIPHER_SUITE:
1367 if ( tls_opt_ciphersuite ) LDAP_FREE( tls_opt_ciphersuite );
1368 tls_opt_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1370 case LDAP_OPT_X_TLS_RANDOM_FILE:
1371 if (tls_opt_randfile ) LDAP_FREE (tls_opt_randfile );
1372 tls_opt_randfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL;
1381 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
1383 Sockbuf *sb = conn->lconn_sb;
1388 host = srv->lud_host;
1390 host = conn->lconn_server->lud_host;
1393 /* avoid NULL host */
1394 if( host == NULL ) {
1398 (void) ldap_pvt_tls_init();
1401 * Fortunately, the lib uses blocking io...
1403 if ( ldap_int_tls_connect( ld, conn ) < 0 ) {
1404 ld->ld_errno = LDAP_CONNECT_ERROR;
1405 return (ld->ld_errno);
1408 ssl = ldap_pvt_tls_sb_ctx( sb );
1409 assert( ssl != NULL );
1412 * compare host with name(s) in certificate
1414 if (tls_opt_require_cert != LDAP_OPT_X_TLS_NEVER) {
1415 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
1416 if (ld->ld_errno != LDAP_SUCCESS) {
1417 return ld->ld_errno;
1421 return LDAP_SUCCESS;
1424 /* Derived from openssl/apps/s_cb.c */
1426 tls_info_cb( const SSL *ssl, int where, int ret )
1430 char *state = (char *) SSL_state_string_long( (SSL *)ssl );
1432 w = where & ~SSL_ST_MASK;
1433 if ( w & SSL_ST_CONNECT ) {
1435 } else if ( w & SSL_ST_ACCEPT ) {
1443 state = LDAP_STRDUP( state );
1447 if ( where & SSL_CB_LOOP ) {
1448 Debug( LDAP_DEBUG_TRACE,
1449 "TLS trace: %s:%s\n",
1452 } else if ( where & SSL_CB_ALERT ) {
1453 char *atype = (char *) SSL_alert_type_string_long( ret );
1454 char *adesc = (char *) SSL_alert_desc_string_long( ret );
1455 op = ( where & SSL_CB_READ ) ? "read" : "write";
1458 atype = LDAP_STRDUP( atype );
1462 adesc = LDAP_STRDUP( adesc );
1466 Debug( LDAP_DEBUG_TRACE,
1467 "TLS trace: SSL3 alert %s:%s:%s\n",
1470 if ( atype ) LDAP_FREE( atype );
1471 if ( adesc ) LDAP_FREE( adesc );
1473 } else if ( where & SSL_CB_EXIT ) {
1475 Debug( LDAP_DEBUG_TRACE,
1476 "TLS trace: %s:failed in %s\n",
1478 } else if ( ret < 0 ) {
1479 Debug( LDAP_DEBUG_TRACE,
1480 "TLS trace: %s:error in %s\n",
1485 if ( state ) LDAP_FREE( state );
1490 tls_verify_cb( int ok, X509_STORE_CTX *ctx )
1499 char *certerr = NULL;
1501 cert = X509_STORE_CTX_get_current_cert( ctx );
1502 errnum = X509_STORE_CTX_get_error( ctx );
1503 errdepth = X509_STORE_CTX_get_error_depth( ctx );
1506 * X509_get_*_name return pointers to the internal copies of
1507 * those things requested. So do not free them.
1509 subject = X509_get_subject_name( cert );
1510 issuer = X509_get_issuer_name( cert );
1511 /* X509_NAME_oneline, if passed a NULL buf, allocate memomry */
1512 sname = X509_NAME_oneline( subject, NULL, 0 );
1513 iname = X509_NAME_oneline( issuer, NULL, 0 );
1514 if ( !ok ) certerr = (char *)X509_verify_cert_error_string( errnum );
1516 if ( sname ) __etoa( sname );
1517 if ( iname ) __etoa( iname );
1519 certerr = LDAP_STRDUP( certerr );
1523 Debug( LDAP_DEBUG_TRACE,
1524 "TLS certificate verification: depth: %d, err: %d, subject: %s,",
1526 sname ? sname : "-unknown-" );
1527 Debug( LDAP_DEBUG_TRACE, " issuer: %s\n", iname ? iname : "-unknown-", 0, 0 );
1529 Debug( LDAP_DEBUG_ANY,
1530 "TLS certificate verification: Error, %s\n",
1534 CRYPTO_free ( sname );
1536 CRYPTO_free ( iname );
1538 if ( certerr ) LDAP_FREE( certerr );
1544 tls_verify_ok( int ok, X509_STORE_CTX *ctx )
1546 (void) tls_verify_cb( ok, ctx );
1550 /* Inspired by ERR_print_errors in OpenSSL */
1552 tls_report_error( void )
1559 while ( ( l = ERR_get_error_line( &file, &line ) ) != 0 ) {
1560 ERR_error_string_n( l, buf, sizeof( buf ) );
1563 file = LDAP_STRDUP( file );
1564 __etoa( (char *)file );
1568 Debug( LDAP_DEBUG_ANY, "TLS: %s %s:%d\n",
1571 if ( file ) LDAP_FREE( (void *)file );
1577 tls_tmp_rsa_cb( SSL *ssl, int is_export, int key_length )
1581 /* FIXME: Pregenerate the key on startup */
1582 /* FIXME: Who frees the key? */
1583 tmp_rsa = RSA_generate_key( key_length, RSA_F4, NULL, NULL );
1586 Debug( LDAP_DEBUG_ANY,
1587 "TLS: Failed to generate temporary %d-bit %s RSA key\n",
1588 key_length, is_export ? "export" : "domestic", 0 );
1595 tls_seed_PRNG( const char *randfile )
1597 #ifndef URANDOM_DEVICE
1598 /* no /dev/urandom (or equiv) */
1600 char buffer[MAXPATHLEN];
1602 if (randfile == NULL) {
1603 /* The seed file is $RANDFILE if defined, otherwise $HOME/.rnd.
1604 * If $HOME is not set or buffer too small to hold the pathname,
1605 * an error occurs. - From RAND_file_name() man page.
1606 * The fact is that when $HOME is NULL, .rnd is used.
1608 randfile = RAND_file_name( buffer, sizeof( buffer ) );
1610 } else if (RAND_egd(randfile) > 0) {
1615 if (randfile == NULL) {
1616 Debug( LDAP_DEBUG_ANY,
1617 "TLS: Use configuration file or $RANDFILE to define seed PRNG\n",
1622 total = RAND_load_file(randfile, -1);
1624 if (RAND_status() == 0) {
1625 Debug( LDAP_DEBUG_ANY,
1626 "TLS: PRNG not been seeded with enough data\n",
1631 /* assume if there was enough bits to seed that it's okay
1632 * to write derived bits to the file
1634 RAND_write_file(randfile);
1648 struct dhplist *next;
1653 static struct dhplist *dhparams;
1655 /* From the OpenSSL 0.9.7 distro */
1656 static const char dhpem512[] =
1657 "-----BEGIN DH PARAMETERS-----\n\
1658 MEYCQQDaWDwW2YUiidDkr3VvTMqS3UvlM7gE+w/tlO+cikQD7VdGUNNpmdsp13Yn\n\
1659 a6LT1BLiGPTdHghM9tgAPnxHdOgzAgEC\n\
1660 -----END DH PARAMETERS-----\n";
1662 static const char dhpem1024[] =
1663 "-----BEGIN DH PARAMETERS-----\n\
1664 MIGHAoGBAJf2QmHKtQXdKCjhPx1ottPb0PMTBH9A6FbaWMsTuKG/K3g6TG1Z1fkq\n\
1665 /Gz/PWk/eLI9TzFgqVAuPvr3q14a1aZeVUMTgo2oO5/y2UHe6VaJ+trqCTat3xlx\n\
1666 /mNbIK9HA2RgPC3gWfVLZQrY+gz3ASHHR5nXWHEyvpuZm7m3h+irAgEC\n\
1667 -----END DH PARAMETERS-----\n";
1669 static const char dhpem2048[] =
1670 "-----BEGIN DH PARAMETERS-----\n\
1671 MIIBCAKCAQEA7ZKJNYJFVcs7+6J2WmkEYb8h86tT0s0h2v94GRFS8Q7B4lW9aG9o\n\
1672 AFO5Imov5Jo0H2XMWTKKvbHbSe3fpxJmw/0hBHAY8H/W91hRGXKCeyKpNBgdL8sh\n\
1673 z22SrkO2qCnHJ6PLAMXy5fsKpFmFor2tRfCzrfnggTXu2YOzzK7q62bmqVdmufEo\n\
1674 pT8igNcLpvZxk5uBDvhakObMym9mX3rAEBoe8PwttggMYiiw7NuJKO4MqD1llGkW\n\
1675 aVM8U2ATsCun1IKHrRxynkE1/MJ86VHeYYX8GZt2YA8z+GuzylIOKcMH6JAWzMwA\n\
1676 Gbatw6QwizOhr9iMjZ0B26TE3X8LvW84wwIBAg==\n\
1677 -----END DH PARAMETERS-----\n";
1679 static const char dhpem4096[] =
1680 "-----BEGIN DH PARAMETERS-----\n\
1681 MIICCAKCAgEA/urRnb6vkPYc/KEGXWnbCIOaKitq7ySIq9dTH7s+Ri59zs77zty7\n\
1682 vfVlSe6VFTBWgYjD2XKUFmtqq6CqXMhVX5ElUDoYDpAyTH85xqNFLzFC7nKrff/H\n\
1683 TFKNttp22cZE9V0IPpzedPfnQkE7aUdmF9JnDyv21Z/818O93u1B4r0szdnmEvEF\n\
1684 bKuIxEHX+bp0ZR7RqE1AeifXGJX3d6tsd2PMAObxwwsv55RGkn50vHO4QxtTARr1\n\
1685 rRUV5j3B3oPMgC7Offxx+98Xn45B1/G0Prp11anDsR1PGwtaCYipqsvMwQUSJtyE\n\
1686 EOQWk+yFkeMe4vWv367eEi0Sd/wnC+TSXBE3pYvpYerJ8n1MceI5GQTdarJ77OW9\n\
1687 bGTHmxRsLSCM1jpLdPja5jjb4siAa6EHc4qN9c/iFKS3PQPJEnX7pXKBRs5f7AF3\n\
1688 W3RIGt+G9IVNZfXaS7Z/iCpgzgvKCs0VeqN38QsJGtC1aIkwOeyjPNy2G6jJ4yqH\n\
1689 ovXYt/0mc00vCWeSNS1wren0pR2EiLxX0ypjjgsU1mk/Z3b/+zVf7fZSIB+nDLjb\n\
1690 NPtUlJCVGnAeBK1J1nG3TQicqowOXoM6ISkdaXj5GPJdXHab2+S7cqhKGv5qC7rR\n\
1691 jT6sx7RUr0CNTxzLI7muV2/a4tGmj0PSdXQdsZ7tw7gbXlaWT1+MM2MCAQI=\n\
1692 -----END DH PARAMETERS-----\n";
1694 static const struct dhinfo dhpem[] = {
1695 { 512, dhpem512, sizeof(dhpem512) },
1696 { 1024, dhpem1024, sizeof(dhpem1024) },
1697 { 2048, dhpem2048, sizeof(dhpem2048) },
1698 { 4096, dhpem4096, sizeof(dhpem4096) },
1702 #define MAXDIGITS 12
1704 #define DHFILEPATTERN "dh%d.pem"
1707 tls_tmp_dh_cb( SSL *ssl, int is_export, int key_length )
1709 struct dhplist *p = NULL;
1715 /* Do we have params of this length already? */
1716 #ifdef LDAP_R_COMPILE
1717 ldap_pvt_thread_mutex_lock( &tls_def_ctx_mutex );
1719 for ( p = dhparams; p; p=p->next ) {
1720 if ( p->keylength == key_length ) {
1721 #ifdef LDAP_R_COMPILE
1722 ldap_pvt_thread_mutex_unlock( &tls_def_ctx_mutex );
1728 /* See if there's a file to load */
1729 if ( tls_opt_dhparamdir ) {
1730 file = LDAP_MALLOC( tls_opt_dhparamdirlen + 1 + MAXDIGITS +
1731 sizeof(DHFILEPATTERN) );
1734 sprintf( file, "%s/" DHFILEPATTERN, tls_opt_dhparamdir, key_length );
1736 file = LDAP_MALLOC( STRLENOF(LDAP_SYSCONFDIR) + 1 + MAXDIGITS +
1737 sizeof(DHFILEPATTERN) );
1740 sprintf( file, LDAP_SYSCONFDIR "/" DHFILEPATTERN, key_length );
1742 f = fopen(file,"r");
1743 /* Did we get the file? */
1745 b = BIO_new_fp( f, BIO_CLOSE );
1749 /* No - check for hardcoded params */
1752 for (i=0; dhpem[i].keylength; i++) {
1753 if ( dhpem[i].keylength == key_length ) {
1754 b = BIO_new_mem_buf( (char *)dhpem[i].pem, dhpem[i].size );
1760 dh = PEM_read_bio_DHparams( b, NULL, NULL, NULL );
1764 /* Generating on the fly is expensive/slow... */
1766 dh = DH_generate_parameters( key_length, DH_GENERATOR_2, NULL, NULL );
1769 p = LDAP_MALLOC( sizeof(struct dhplist) );
1771 p->keylength = key_length;
1778 #ifdef LDAP_R_COMPILE
1779 ldap_pvt_thread_mutex_unlock( &tls_def_ctx_mutex );
1786 ldap_pvt_tls_sb_ctx( Sockbuf *sb )
1791 if (HAS_TLS( sb )) {
1792 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p );
1801 ldap_pvt_tls_get_strength( void *s )
1806 c = SSL_get_current_cipher((SSL *)s);
1807 return SSL_CIPHER_get_bits(c, NULL);
1815 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags )
1822 x = SSL_get_certificate((SSL *)s);
1824 if (!x) return LDAP_INVALID_CREDENTIALS;
1826 xn = X509_get_subject_name(x);
1827 rc = ldap_X509dn2bv(xn, dn, (LDAPDN_rewrite_func *)func, flags );
1830 return LDAP_NOT_SUPPORTED;
1835 ldap_start_tls( LDAP *ld,
1836 LDAPControl **serverctrls,
1837 LDAPControl **clientctrls,
1840 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS,
1841 NULL, serverctrls, clientctrls, msgidp );
1845 ldap_install_tls( LDAP *ld )
1848 return LDAP_NOT_SUPPORTED;
1850 if ( ldap_tls_inplace( ld ) ) {
1851 return LDAP_LOCAL_ERROR;
1854 return ldap_int_tls_start( ld, ld->ld_defconn, NULL );
1859 ldap_start_tls_s ( LDAP *ld,
1860 LDAPControl **serverctrls,
1861 LDAPControl **clientctrls )
1864 return LDAP_NOT_SUPPORTED;
1867 char *rspoid = NULL;
1868 struct berval *rspdata = NULL;
1870 /* XXYYZ: this initiates operation only on default connection! */
1872 if ( ldap_tls_inplace( ld ) ) {
1873 return LDAP_LOCAL_ERROR;
1876 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS,
1877 NULL, serverctrls, clientctrls, &rspoid, &rspdata );
1879 if ( rspoid != NULL ) {
1883 if ( rspdata != NULL ) {
1884 ber_bvfree( rspdata );
1887 if ( rc == LDAP_SUCCESS ) {
1888 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL );