1 /* $NetBSD: tls2.c,v 1.1.1.5 2018/02/06 01:53:08 christos Exp $ */ 2 3 /* tls.c - Handle tls/ssl. */ 4 /* $OpenLDAP$ */ 5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 6 * 7 * Copyright 1998-2017 The OpenLDAP Foundation. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted only as authorized by the OpenLDAP 12 * Public License. 13 * 14 * A copy of this license is available in the file LICENSE in the 15 * top-level directory of the distribution or, alternatively, at 16 * <http://www.OpenLDAP.org/license.html>. 17 */ 18 /* ACKNOWLEDGEMENTS: restructured by Howard Chu. 19 */ 20 21 #include <sys/cdefs.h> 22 __RCSID("$NetBSD: tls2.c,v 1.1.1.5 2018/02/06 01:53:08 christos Exp $"); 23 24 #include "portable.h" 25 #include "ldap_config.h" 26 27 #include <stdio.h> 28 29 #include <ac/stdlib.h> 30 #include <ac/errno.h> 31 #include <ac/socket.h> 32 #include <ac/string.h> 33 #include <ac/ctype.h> 34 #include <ac/time.h> 35 #include <ac/unistd.h> 36 #include <ac/param.h> 37 #include <ac/dirent.h> 38 39 #include "ldap-int.h" 40 41 #ifdef HAVE_TLS 42 43 #include "ldap-tls.h" 44 45 static tls_impl *tls_imp = &ldap_int_tls_impl; 46 #define HAS_TLS( sb ) ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO, \ 47 (void *)tls_imp->ti_sbio ) 48 49 #endif /* HAVE_TLS */ 50 51 #ifdef LDAP_DEVEL 52 #define LDAP_USE_NON_BLOCKING_TLS 53 #endif /* LDAP_DEVEL */ 54 55 /* RFC2459 minimum required set of supported attribute types 56 * in a certificate DN 57 */ 58 typedef struct oid_name { 59 struct berval oid; 60 struct berval name; 61 } oid_name; 62 63 static oid_name oids[] = { 64 { BER_BVC("2.5.4.3"), BER_BVC("cn") }, 65 { BER_BVC("2.5.4.4"), BER_BVC("sn") }, 66 { BER_BVC("2.5.4.6"), BER_BVC("c") }, 67 { BER_BVC("2.5.4.7"), BER_BVC("l") }, 68 { BER_BVC("2.5.4.8"), BER_BVC("st") }, 69 { BER_BVC("2.5.4.10"), BER_BVC("o") }, 70 { BER_BVC("2.5.4.11"), BER_BVC("ou") }, 71 { BER_BVC("2.5.4.12"), BER_BVC("title") }, 72 { BER_BVC("2.5.4.41"), BER_BVC("name") }, 73 { BER_BVC("2.5.4.42"), BER_BVC("givenName") }, 74 { BER_BVC("2.5.4.43"), BER_BVC("initials") }, 75 { BER_BVC("2.5.4.44"), BER_BVC("generationQualifier") }, 76 { BER_BVC("2.5.4.46"), BER_BVC("dnQualifier") }, 77 { BER_BVC("1.2.840.113549.1.9.1"), BER_BVC("email") }, 78 { BER_BVC("0.9.2342.19200300.100.1.25"), BER_BVC("dc") }, 79 { BER_BVNULL, BER_BVNULL } 80 }; 81 82 #ifdef HAVE_TLS 83 84 void 85 ldap_pvt_tls_ctx_free ( void *c ) 86 { 87 if ( !c ) return; 88 tls_imp->ti_ctx_free( c ); 89 } 90 91 static void 92 tls_ctx_ref( tls_ctx *ctx ) 93 { 94 if ( !ctx ) return; 95 96 tls_imp->ti_ctx_ref( ctx ); 97 } 98 99 #ifdef LDAP_R_COMPILE 100 /* 101 * an extra mutex for the default ctx. 102 */ 103 static ldap_pvt_thread_mutex_t tls_def_ctx_mutex; 104 #endif 105 106 void 107 ldap_int_tls_destroy( struct ldapoptions *lo ) 108 { 109 if ( lo->ldo_tls_ctx ) { 110 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx ); 111 lo->ldo_tls_ctx = NULL; 112 } 113 114 if ( lo->ldo_tls_certfile ) { 115 LDAP_FREE( lo->ldo_tls_certfile ); 116 lo->ldo_tls_certfile = NULL; 117 } 118 if ( lo->ldo_tls_keyfile ) { 119 LDAP_FREE( lo->ldo_tls_keyfile ); 120 lo->ldo_tls_keyfile = NULL; 121 } 122 if ( lo->ldo_tls_dhfile ) { 123 LDAP_FREE( lo->ldo_tls_dhfile ); 124 lo->ldo_tls_dhfile = NULL; 125 } 126 if ( lo->ldo_tls_cacertfile ) { 127 LDAP_FREE( lo->ldo_tls_cacertfile ); 128 lo->ldo_tls_cacertfile = NULL; 129 } 130 if ( lo->ldo_tls_cacertdir ) { 131 LDAP_FREE( lo->ldo_tls_cacertdir ); 132 lo->ldo_tls_cacertdir = NULL; 133 } 134 if ( lo->ldo_tls_ciphersuite ) { 135 LDAP_FREE( lo->ldo_tls_ciphersuite ); 136 lo->ldo_tls_ciphersuite = NULL; 137 } 138 if ( lo->ldo_tls_crlfile ) { 139 LDAP_FREE( lo->ldo_tls_crlfile ); 140 lo->ldo_tls_crlfile = NULL; 141 } 142 } 143 144 /* 145 * Tear down the TLS subsystem. Should only be called once. 146 */ 147 void 148 ldap_pvt_tls_destroy( void ) 149 { 150 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT(); 151 152 ldap_int_tls_destroy( lo ); 153 154 tls_imp->ti_tls_destroy(); 155 } 156 157 /* 158 * Initialize a particular TLS implementation. 159 * Called once per implementation. 160 */ 161 static int 162 tls_init(tls_impl *impl ) 163 { 164 static int tls_initialized = 0; 165 166 if ( !tls_initialized++ ) { 167 #ifdef LDAP_R_COMPILE 168 ldap_pvt_thread_mutex_init( &tls_def_ctx_mutex ); 169 #endif 170 } 171 172 if ( impl->ti_inited++ ) return 0; 173 174 #ifdef LDAP_R_COMPILE 175 impl->ti_thr_init(); 176 #endif 177 return impl->ti_tls_init(); 178 } 179 180 /* 181 * Initialize TLS subsystem. Called once per implementation. 182 */ 183 int 184 ldap_pvt_tls_init( void ) 185 { 186 return tls_init( tls_imp ); 187 } 188 189 /* 190 * initialize a new TLS context 191 */ 192 static int 193 ldap_int_tls_init_ctx( struct ldapoptions *lo, int is_server ) 194 { 195 int rc = 0; 196 tls_impl *ti = tls_imp; 197 struct ldaptls lts = lo->ldo_tls_info; 198 199 if ( lo->ldo_tls_ctx ) 200 return 0; 201 202 tls_init( ti ); 203 204 if ( is_server && !lts.lt_certfile && !lts.lt_keyfile && 205 !lts.lt_cacertfile && !lts.lt_cacertdir ) { 206 /* minimum configuration not provided */ 207 return LDAP_NOT_SUPPORTED; 208 } 209 210 #ifdef HAVE_EBCDIC 211 /* This ASCII/EBCDIC handling is a real pain! */ 212 if ( lts.lt_ciphersuite ) { 213 lts.lt_ciphersuite = LDAP_STRDUP( lts.lt_ciphersuite ); 214 __atoe( lts.lt_ciphersuite ); 215 } 216 if ( lts.lt_cacertfile ) { 217 lts.lt_cacertfile = LDAP_STRDUP( lts.lt_cacertfile ); 218 __atoe( lts.lt_cacertfile ); 219 } 220 if ( lts.lt_certfile ) { 221 lts.lt_certfile = LDAP_STRDUP( lts.lt_certfile ); 222 __atoe( lts.lt_certfile ); 223 } 224 if ( lts.lt_keyfile ) { 225 lts.lt_keyfile = LDAP_STRDUP( lts.lt_keyfile ); 226 __atoe( lts.lt_keyfile ); 227 } 228 if ( lts.lt_crlfile ) { 229 lts.lt_crlfile = LDAP_STRDUP( lts.lt_crlfile ); 230 __atoe( lts.lt_crlfile ); 231 } 232 if ( lts.lt_cacertdir ) { 233 lts.lt_cacertdir = LDAP_STRDUP( lts.lt_cacertdir ); 234 __atoe( lts.lt_cacertdir ); 235 } 236 if ( lts.lt_dhfile ) { 237 lts.lt_dhfile = LDAP_STRDUP( lts.lt_dhfile ); 238 __atoe( lts.lt_dhfile ); 239 } 240 #endif 241 lo->ldo_tls_ctx = ti->ti_ctx_new( lo ); 242 if ( lo->ldo_tls_ctx == NULL ) { 243 Debug( LDAP_DEBUG_ANY, 244 "TLS: could not allocate default ctx.\n", 245 0,0,0); 246 rc = -1; 247 goto error_exit; 248 } 249 250 rc = ti->ti_ctx_init( lo, <s, is_server ); 251 252 error_exit: 253 if ( rc < 0 && lo->ldo_tls_ctx != NULL ) { 254 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx ); 255 lo->ldo_tls_ctx = NULL; 256 } 257 #ifdef HAVE_EBCDIC 258 LDAP_FREE( lts.lt_ciphersuite ); 259 LDAP_FREE( lts.lt_cacertfile ); 260 LDAP_FREE( lts.lt_certfile ); 261 LDAP_FREE( lts.lt_keyfile ); 262 LDAP_FREE( lts.lt_crlfile ); 263 LDAP_FREE( lts.lt_cacertdir ); 264 LDAP_FREE( lts.lt_dhfile ); 265 #endif 266 return rc; 267 } 268 269 /* 270 * initialize the default context 271 */ 272 int 273 ldap_pvt_tls_init_def_ctx( int is_server ) 274 { 275 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT(); 276 int rc; 277 LDAP_MUTEX_LOCK( &tls_def_ctx_mutex ); 278 rc = ldap_int_tls_init_ctx( lo, is_server ); 279 LDAP_MUTEX_UNLOCK( &tls_def_ctx_mutex ); 280 return rc; 281 } 282 283 static tls_session * 284 alloc_handle( void *ctx_arg, int is_server ) 285 { 286 tls_ctx *ctx; 287 tls_session *ssl; 288 289 if ( ctx_arg ) { 290 ctx = ctx_arg; 291 } else { 292 struct ldapoptions *lo = LDAP_INT_GLOBAL_OPT(); 293 if ( ldap_pvt_tls_init_def_ctx( is_server ) < 0 ) return NULL; 294 ctx = lo->ldo_tls_ctx; 295 } 296 297 ssl = tls_imp->ti_session_new( ctx, is_server ); 298 if ( ssl == NULL ) { 299 Debug( LDAP_DEBUG_ANY,"TLS: can't create ssl handle.\n",0,0,0); 300 return NULL; 301 } 302 return ssl; 303 } 304 305 static int 306 update_flags( Sockbuf *sb, tls_session * ssl, int rc ) 307 { 308 sb->sb_trans_needs_read = 0; 309 sb->sb_trans_needs_write = 0; 310 311 return tls_imp->ti_session_upflags( sb, ssl, rc ); 312 } 313 314 /* 315 * Call this to do a TLS connect on a sockbuf. ctx_arg can be 316 * a SSL_CTX * or NULL, in which case the default ctx is used. 317 * 318 * Return value: 319 * 320 * 0 - Success. Connection is ready for communication. 321 * <0 - Error. Can't create a TLS stream. 322 * >0 - Partial success. 323 * Do a select (using information from lber_pvt_sb_needs_{read,write} 324 * and call again. 325 */ 326 327 static int 328 ldap_int_tls_connect( LDAP *ld, LDAPConn *conn ) 329 { 330 Sockbuf *sb = conn->lconn_sb; 331 int err; 332 tls_session *ssl = NULL; 333 334 if ( HAS_TLS( sb )) { 335 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl ); 336 } else { 337 struct ldapoptions *lo; 338 tls_ctx *ctx; 339 340 ctx = ld->ld_options.ldo_tls_ctx; 341 342 ssl = alloc_handle( ctx, 0 ); 343 344 if ( ssl == NULL ) return -1; 345 346 #ifdef LDAP_DEBUG 347 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug, 348 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" ); 349 #endif 350 ber_sockbuf_add_io( sb, tls_imp->ti_sbio, 351 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl ); 352 353 lo = LDAP_INT_GLOBAL_OPT(); 354 if( ctx == NULL ) { 355 ctx = lo->ldo_tls_ctx; 356 ld->ld_options.ldo_tls_ctx = ctx; 357 tls_ctx_ref( ctx ); 358 } 359 if ( ld->ld_options.ldo_tls_connect_cb ) 360 ld->ld_options.ldo_tls_connect_cb( ld, ssl, ctx, 361 ld->ld_options.ldo_tls_connect_arg ); 362 if ( lo && lo->ldo_tls_connect_cb && lo->ldo_tls_connect_cb != 363 ld->ld_options.ldo_tls_connect_cb ) 364 lo->ldo_tls_connect_cb( ld, ssl, ctx, lo->ldo_tls_connect_arg ); 365 } 366 367 err = tls_imp->ti_session_connect( ld, ssl ); 368 369 #ifdef HAVE_WINSOCK 370 errno = WSAGetLastError(); 371 #endif 372 373 if ( err < 0 ) 374 { 375 char buf[256], *msg; 376 if ( update_flags( sb, ssl, err )) { 377 return 1; 378 } 379 380 msg = tls_imp->ti_session_errmsg( ssl, err, buf, sizeof(buf) ); 381 if ( msg ) { 382 if ( ld->ld_error ) { 383 LDAP_FREE( ld->ld_error ); 384 } 385 ld->ld_error = LDAP_STRDUP( msg ); 386 #ifdef HAVE_EBCDIC 387 if ( ld->ld_error ) __etoa(ld->ld_error); 388 #endif 389 } 390 391 Debug( LDAP_DEBUG_ANY,"TLS: can't connect: %s.\n", 392 ld->ld_error ? ld->ld_error : "" ,0,0); 393 394 ber_sockbuf_remove_io( sb, tls_imp->ti_sbio, 395 LBER_SBIOD_LEVEL_TRANSPORT ); 396 #ifdef LDAP_DEBUG 397 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug, 398 LBER_SBIOD_LEVEL_TRANSPORT ); 399 #endif 400 return -1; 401 } 402 403 return 0; 404 } 405 406 /* 407 * Call this to do a TLS accept on a sockbuf. 408 * Everything else is the same as with tls_connect. 409 */ 410 int 411 ldap_pvt_tls_accept( Sockbuf *sb, void *ctx_arg ) 412 { 413 int err; 414 tls_session *ssl = NULL; 415 416 if ( HAS_TLS( sb )) { 417 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&ssl ); 418 } else { 419 ssl = alloc_handle( ctx_arg, 1 ); 420 if ( ssl == NULL ) return -1; 421 422 #ifdef LDAP_DEBUG 423 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug, 424 LBER_SBIOD_LEVEL_TRANSPORT, (void *)"tls_" ); 425 #endif 426 ber_sockbuf_add_io( sb, tls_imp->ti_sbio, 427 LBER_SBIOD_LEVEL_TRANSPORT, (void *)ssl ); 428 } 429 430 err = tls_imp->ti_session_accept( ssl ); 431 432 #ifdef HAVE_WINSOCK 433 errno = WSAGetLastError(); 434 #endif 435 436 if ( err < 0 ) 437 { 438 if ( update_flags( sb, ssl, err )) return 1; 439 440 if ( DebugTest( LDAP_DEBUG_ANY ) ) { 441 char buf[256], *msg; 442 msg = tls_imp->ti_session_errmsg( ssl, err, buf, sizeof(buf) ); 443 Debug( LDAP_DEBUG_ANY,"TLS: can't accept: %s.\n", 444 msg ? msg : "(unknown)", 0, 0 ); 445 } 446 447 ber_sockbuf_remove_io( sb, tls_imp->ti_sbio, 448 LBER_SBIOD_LEVEL_TRANSPORT ); 449 #ifdef LDAP_DEBUG 450 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug, 451 LBER_SBIOD_LEVEL_TRANSPORT ); 452 #endif 453 return -1; 454 } 455 return 0; 456 } 457 458 int 459 ldap_pvt_tls_inplace ( Sockbuf *sb ) 460 { 461 return HAS_TLS( sb ) ? 1 : 0; 462 } 463 464 int 465 ldap_tls_inplace( LDAP *ld ) 466 { 467 Sockbuf *sb = NULL; 468 469 if ( ld->ld_defconn && ld->ld_defconn->lconn_sb ) { 470 sb = ld->ld_defconn->lconn_sb; 471 472 } else if ( ld->ld_sb ) { 473 sb = ld->ld_sb; 474 475 } else { 476 return 0; 477 } 478 479 return ldap_pvt_tls_inplace( sb ); 480 } 481 482 int 483 ldap_pvt_tls_get_peer_dn( void *s, struct berval *dn, 484 LDAPDN_rewrite_dummy *func, unsigned flags ) 485 { 486 tls_session *session = s; 487 struct berval bvdn; 488 int rc; 489 490 rc = tls_imp->ti_session_peer_dn( session, &bvdn ); 491 if ( rc ) return rc; 492 493 rc = ldap_X509dn2bv( &bvdn, dn, 494 (LDAPDN_rewrite_func *)func, flags); 495 return rc; 496 } 497 498 int 499 ldap_pvt_tls_check_hostname( LDAP *ld, void *s, const char *name_in ) 500 { 501 tls_session *session = s; 502 503 return tls_imp->ti_session_chkhost( ld, session, name_in ); 504 } 505 506 int 507 ldap_int_tls_config( LDAP *ld, int option, const char *arg ) 508 { 509 int i; 510 511 switch( option ) { 512 case LDAP_OPT_X_TLS_CACERTFILE: 513 case LDAP_OPT_X_TLS_CACERTDIR: 514 case LDAP_OPT_X_TLS_CERTFILE: 515 case LDAP_OPT_X_TLS_KEYFILE: 516 case LDAP_OPT_X_TLS_RANDOM_FILE: 517 case LDAP_OPT_X_TLS_CIPHER_SUITE: 518 case LDAP_OPT_X_TLS_DHFILE: 519 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */ 520 return ldap_pvt_tls_set_option( ld, option, (void *) arg ); 521 522 case LDAP_OPT_X_TLS_REQUIRE_CERT: 523 case LDAP_OPT_X_TLS: 524 i = -1; 525 if ( strcasecmp( arg, "never" ) == 0 ) { 526 i = LDAP_OPT_X_TLS_NEVER ; 527 528 } else if ( strcasecmp( arg, "demand" ) == 0 ) { 529 i = LDAP_OPT_X_TLS_DEMAND ; 530 531 } else if ( strcasecmp( arg, "allow" ) == 0 ) { 532 i = LDAP_OPT_X_TLS_ALLOW ; 533 534 } else if ( strcasecmp( arg, "try" ) == 0 ) { 535 i = LDAP_OPT_X_TLS_TRY ; 536 537 } else if ( ( strcasecmp( arg, "hard" ) == 0 ) || 538 ( strcasecmp( arg, "on" ) == 0 ) || 539 ( strcasecmp( arg, "yes" ) == 0) || 540 ( strcasecmp( arg, "true" ) == 0 ) ) 541 { 542 i = LDAP_OPT_X_TLS_HARD ; 543 } 544 545 if (i >= 0) { 546 return ldap_pvt_tls_set_option( ld, option, &i ); 547 } 548 return -1; 549 case LDAP_OPT_X_TLS_PROTOCOL_MIN: { 550 char *next; 551 long l; 552 l = strtol( arg, &next, 10 ); 553 if ( l < 0 || l > 0xff || next == arg || 554 ( *next != '\0' && *next != '.' ) ) 555 return -1; 556 i = l << 8; 557 if (*next == '.') { 558 arg = next + 1; 559 l = strtol( arg, &next, 10 ); 560 if ( l < 0 || l > 0xff || next == arg || *next != '\0' ) 561 return -1; 562 i += l; 563 } 564 return ldap_pvt_tls_set_option( ld, option, &i ); 565 } 566 #ifdef HAVE_OPENSSL_CRL 567 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */ 568 i = -1; 569 if ( strcasecmp( arg, "none" ) == 0 ) { 570 i = LDAP_OPT_X_TLS_CRL_NONE ; 571 } else if ( strcasecmp( arg, "peer" ) == 0 ) { 572 i = LDAP_OPT_X_TLS_CRL_PEER ; 573 } else if ( strcasecmp( arg, "all" ) == 0 ) { 574 i = LDAP_OPT_X_TLS_CRL_ALL ; 575 } 576 if (i >= 0) { 577 return ldap_pvt_tls_set_option( ld, option, &i ); 578 } 579 return -1; 580 #endif 581 } 582 return -1; 583 } 584 585 int 586 ldap_pvt_tls_get_option( LDAP *ld, int option, void *arg ) 587 { 588 struct ldapoptions *lo; 589 590 if( option == LDAP_OPT_X_TLS_PACKAGE ) { 591 *(char **)arg = LDAP_STRDUP( tls_imp->ti_name ); 592 return 0; 593 } 594 595 if( ld != NULL ) { 596 assert( LDAP_VALID( ld ) ); 597 598 if( !LDAP_VALID( ld ) ) { 599 return LDAP_OPT_ERROR; 600 } 601 602 lo = &ld->ld_options; 603 604 } else { 605 /* Get pointer to global option structure */ 606 lo = LDAP_INT_GLOBAL_OPT(); 607 if ( lo == NULL ) { 608 return LDAP_NO_MEMORY; 609 } 610 } 611 612 switch( option ) { 613 case LDAP_OPT_X_TLS: 614 *(int *)arg = lo->ldo_tls_mode; 615 break; 616 case LDAP_OPT_X_TLS_CTX: 617 *(void **)arg = lo->ldo_tls_ctx; 618 if ( lo->ldo_tls_ctx ) { 619 tls_ctx_ref( lo->ldo_tls_ctx ); 620 } 621 break; 622 case LDAP_OPT_X_TLS_CACERTFILE: 623 *(char **)arg = lo->ldo_tls_cacertfile ? 624 LDAP_STRDUP( lo->ldo_tls_cacertfile ) : NULL; 625 break; 626 case LDAP_OPT_X_TLS_CACERTDIR: 627 *(char **)arg = lo->ldo_tls_cacertdir ? 628 LDAP_STRDUP( lo->ldo_tls_cacertdir ) : NULL; 629 break; 630 case LDAP_OPT_X_TLS_CERTFILE: 631 *(char **)arg = lo->ldo_tls_certfile ? 632 LDAP_STRDUP( lo->ldo_tls_certfile ) : NULL; 633 break; 634 case LDAP_OPT_X_TLS_KEYFILE: 635 *(char **)arg = lo->ldo_tls_keyfile ? 636 LDAP_STRDUP( lo->ldo_tls_keyfile ) : NULL; 637 break; 638 case LDAP_OPT_X_TLS_DHFILE: 639 *(char **)arg = lo->ldo_tls_dhfile ? 640 LDAP_STRDUP( lo->ldo_tls_dhfile ) : NULL; 641 break; 642 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */ 643 *(char **)arg = lo->ldo_tls_crlfile ? 644 LDAP_STRDUP( lo->ldo_tls_crlfile ) : NULL; 645 break; 646 case LDAP_OPT_X_TLS_REQUIRE_CERT: 647 *(int *)arg = lo->ldo_tls_require_cert; 648 break; 649 #ifdef HAVE_OPENSSL_CRL 650 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */ 651 *(int *)arg = lo->ldo_tls_crlcheck; 652 break; 653 #endif 654 case LDAP_OPT_X_TLS_CIPHER_SUITE: 655 *(char **)arg = lo->ldo_tls_ciphersuite ? 656 LDAP_STRDUP( lo->ldo_tls_ciphersuite ) : NULL; 657 break; 658 case LDAP_OPT_X_TLS_PROTOCOL_MIN: 659 *(int *)arg = lo->ldo_tls_protocol_min; 660 break; 661 case LDAP_OPT_X_TLS_RANDOM_FILE: 662 *(char **)arg = lo->ldo_tls_randfile ? 663 LDAP_STRDUP( lo->ldo_tls_randfile ) : NULL; 664 break; 665 case LDAP_OPT_X_TLS_SSL_CTX: { 666 void *retval = 0; 667 if ( ld != NULL ) { 668 LDAPConn *conn = ld->ld_defconn; 669 if ( conn != NULL ) { 670 Sockbuf *sb = conn->lconn_sb; 671 retval = ldap_pvt_tls_sb_ctx( sb ); 672 } 673 } 674 *(void **)arg = retval; 675 break; 676 } 677 case LDAP_OPT_X_TLS_CONNECT_CB: 678 *(LDAP_TLS_CONNECT_CB **)arg = lo->ldo_tls_connect_cb; 679 break; 680 case LDAP_OPT_X_TLS_CONNECT_ARG: 681 *(void **)arg = lo->ldo_tls_connect_arg; 682 break; 683 default: 684 return -1; 685 } 686 return 0; 687 } 688 689 int 690 ldap_pvt_tls_set_option( LDAP *ld, int option, void *arg ) 691 { 692 struct ldapoptions *lo; 693 694 if( ld != NULL ) { 695 assert( LDAP_VALID( ld ) ); 696 697 if( !LDAP_VALID( ld ) ) { 698 return LDAP_OPT_ERROR; 699 } 700 701 lo = &ld->ld_options; 702 703 } else { 704 /* Get pointer to global option structure */ 705 lo = LDAP_INT_GLOBAL_OPT(); 706 if ( lo == NULL ) { 707 return LDAP_NO_MEMORY; 708 } 709 } 710 711 switch( option ) { 712 case LDAP_OPT_X_TLS: 713 if ( !arg ) return -1; 714 715 switch( *(int *) arg ) { 716 case LDAP_OPT_X_TLS_NEVER: 717 case LDAP_OPT_X_TLS_DEMAND: 718 case LDAP_OPT_X_TLS_ALLOW: 719 case LDAP_OPT_X_TLS_TRY: 720 case LDAP_OPT_X_TLS_HARD: 721 if (lo != NULL) { 722 lo->ldo_tls_mode = *(int *)arg; 723 } 724 725 return 0; 726 } 727 return -1; 728 729 case LDAP_OPT_X_TLS_CTX: 730 if ( lo->ldo_tls_ctx ) 731 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx ); 732 lo->ldo_tls_ctx = arg; 733 tls_ctx_ref( lo->ldo_tls_ctx ); 734 return 0; 735 case LDAP_OPT_X_TLS_CONNECT_CB: 736 lo->ldo_tls_connect_cb = (LDAP_TLS_CONNECT_CB *)arg; 737 return 0; 738 case LDAP_OPT_X_TLS_CONNECT_ARG: 739 lo->ldo_tls_connect_arg = arg; 740 return 0; 741 case LDAP_OPT_X_TLS_CACERTFILE: 742 if ( lo->ldo_tls_cacertfile ) LDAP_FREE( lo->ldo_tls_cacertfile ); 743 lo->ldo_tls_cacertfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 744 return 0; 745 case LDAP_OPT_X_TLS_CACERTDIR: 746 if ( lo->ldo_tls_cacertdir ) LDAP_FREE( lo->ldo_tls_cacertdir ); 747 lo->ldo_tls_cacertdir = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 748 return 0; 749 case LDAP_OPT_X_TLS_CERTFILE: 750 if ( lo->ldo_tls_certfile ) LDAP_FREE( lo->ldo_tls_certfile ); 751 lo->ldo_tls_certfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 752 return 0; 753 case LDAP_OPT_X_TLS_KEYFILE: 754 if ( lo->ldo_tls_keyfile ) LDAP_FREE( lo->ldo_tls_keyfile ); 755 lo->ldo_tls_keyfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 756 return 0; 757 case LDAP_OPT_X_TLS_DHFILE: 758 if ( lo->ldo_tls_dhfile ) LDAP_FREE( lo->ldo_tls_dhfile ); 759 lo->ldo_tls_dhfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 760 return 0; 761 case LDAP_OPT_X_TLS_CRLFILE: /* GnuTLS only */ 762 if ( lo->ldo_tls_crlfile ) LDAP_FREE( lo->ldo_tls_crlfile ); 763 lo->ldo_tls_crlfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 764 return 0; 765 case LDAP_OPT_X_TLS_REQUIRE_CERT: 766 if ( !arg ) return -1; 767 switch( *(int *) arg ) { 768 case LDAP_OPT_X_TLS_NEVER: 769 case LDAP_OPT_X_TLS_DEMAND: 770 case LDAP_OPT_X_TLS_ALLOW: 771 case LDAP_OPT_X_TLS_TRY: 772 case LDAP_OPT_X_TLS_HARD: 773 lo->ldo_tls_require_cert = * (int *) arg; 774 return 0; 775 } 776 return -1; 777 #ifdef HAVE_OPENSSL_CRL 778 case LDAP_OPT_X_TLS_CRLCHECK: /* OpenSSL only */ 779 if ( !arg ) return -1; 780 switch( *(int *) arg ) { 781 case LDAP_OPT_X_TLS_CRL_NONE: 782 case LDAP_OPT_X_TLS_CRL_PEER: 783 case LDAP_OPT_X_TLS_CRL_ALL: 784 lo->ldo_tls_crlcheck = * (int *) arg; 785 return 0; 786 } 787 return -1; 788 #endif 789 case LDAP_OPT_X_TLS_CIPHER_SUITE: 790 if ( lo->ldo_tls_ciphersuite ) LDAP_FREE( lo->ldo_tls_ciphersuite ); 791 lo->ldo_tls_ciphersuite = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 792 return 0; 793 794 case LDAP_OPT_X_TLS_PROTOCOL_MIN: 795 if ( !arg ) return -1; 796 lo->ldo_tls_protocol_min = *(int *)arg; 797 return 0; 798 case LDAP_OPT_X_TLS_RANDOM_FILE: 799 if ( ld != NULL ) 800 return -1; 801 if ( lo->ldo_tls_randfile ) LDAP_FREE (lo->ldo_tls_randfile ); 802 lo->ldo_tls_randfile = arg ? LDAP_STRDUP( (char *) arg ) : NULL; 803 break; 804 case LDAP_OPT_X_TLS_NEWCTX: 805 if ( !arg ) return -1; 806 if ( lo->ldo_tls_ctx ) 807 ldap_pvt_tls_ctx_free( lo->ldo_tls_ctx ); 808 lo->ldo_tls_ctx = NULL; 809 return ldap_int_tls_init_ctx( lo, *(int *)arg ); 810 default: 811 return -1; 812 } 813 return 0; 814 } 815 816 int 817 ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv ) 818 { 819 Sockbuf *sb; 820 char *host; 821 void *ssl; 822 int ret; 823 #ifdef LDAP_USE_NON_BLOCKING_TLS 824 struct timeval start_time_tv, tv, tv0; 825 ber_socket_t sd = AC_SOCKET_ERROR; 826 #endif /* LDAP_USE_NON_BLOCKING_TLS */ 827 828 if ( !conn ) 829 return LDAP_PARAM_ERROR; 830 831 sb = conn->lconn_sb; 832 if( srv ) { 833 host = srv->lud_host; 834 } else { 835 host = conn->lconn_server->lud_host; 836 } 837 838 /* avoid NULL host */ 839 if( host == NULL ) { 840 host = "localhost"; 841 } 842 843 (void) tls_init( tls_imp ); 844 845 #ifdef LDAP_USE_NON_BLOCKING_TLS 846 /* 847 * Use non-blocking io during SSL Handshake when a timeout is configured 848 */ 849 if ( ld->ld_options.ldo_tm_net.tv_sec >= 0 ) { 850 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_SET_NONBLOCK, sb ); 851 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_FD, &sd ); 852 tv = ld->ld_options.ldo_tm_net; 853 tv0 = tv; 854 #ifdef HAVE_GETTIMEOFDAY 855 gettimeofday( &start_time_tv, NULL ); 856 #else /* ! HAVE_GETTIMEOFDAY */ 857 time( &start_time_tv.tv_sec ); 858 start_time_tv.tv_usec = 0; 859 #endif /* ! HAVE_GETTIMEOFDAY */ 860 } 861 862 #endif /* LDAP_USE_NON_BLOCKING_TLS */ 863 864 ld->ld_errno = LDAP_SUCCESS; 865 ret = ldap_int_tls_connect( ld, conn ); 866 867 #ifdef LDAP_USE_NON_BLOCKING_TLS 868 while ( ret > 0 ) { /* this should only happen for non-blocking io */ 869 int wr=0; 870 871 if ( sb->sb_trans_needs_read ) { 872 wr=0; 873 } else if ( sb->sb_trans_needs_write ) { 874 wr=1; 875 } 876 Debug( LDAP_DEBUG_TRACE, "ldap_int_tls_start: ldap_int_tls_connect needs %s\n", 877 wr ? "write": "read", 0, 0); 878 879 ret = ldap_int_poll( ld, sd, &tv, wr); 880 if ( ret < 0 ) { 881 ld->ld_errno = LDAP_TIMEOUT; 882 break; 883 } else { 884 /* ldap_int_poll called ldap_pvt_ndelay_off */ 885 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_SET_NONBLOCK, sb ); 886 ret = ldap_int_tls_connect( ld, conn ); 887 if ( ret > 0 ) { /* need to call tls_connect once more */ 888 struct timeval curr_time_tv, delta_tv; 889 890 /* This is mostly copied from result.c:wait4msg(), should 891 * probably be moved into a separate function */ 892 #ifdef HAVE_GETTIMEOFDAY 893 gettimeofday( &curr_time_tv, NULL ); 894 #else /* ! HAVE_GETTIMEOFDAY */ 895 time( &curr_time_tv.tv_sec ); 896 curr_time_tv.tv_usec = 0; 897 #endif /* ! HAVE_GETTIMEOFDAY */ 898 899 /* delta = curr - start */ 900 delta_tv.tv_sec = curr_time_tv.tv_sec - start_time_tv.tv_sec; 901 delta_tv.tv_usec = curr_time_tv.tv_usec - start_time_tv.tv_usec; 902 if ( delta_tv.tv_usec < 0 ) { 903 delta_tv.tv_sec--; 904 delta_tv.tv_usec += 1000000; 905 } 906 907 /* tv0 < delta ? */ 908 if ( ( tv0.tv_sec < delta_tv.tv_sec ) || 909 ( ( tv0.tv_sec == delta_tv.tv_sec ) && 910 ( tv0.tv_usec < delta_tv.tv_usec ) ) ) 911 { 912 ret = -1; 913 ld->ld_errno = LDAP_TIMEOUT; 914 break; 915 } else { 916 /* timeout -= delta_time */ 917 tv0.tv_sec -= delta_tv.tv_sec; 918 tv0.tv_usec -= delta_tv.tv_usec; 919 if ( tv0.tv_usec < 0 ) { 920 tv0.tv_sec--; 921 tv0.tv_usec += 1000000; 922 } 923 start_time_tv.tv_sec = curr_time_tv.tv_sec; 924 start_time_tv.tv_usec = curr_time_tv.tv_usec; 925 } 926 tv = tv0; 927 Debug( LDAP_DEBUG_TRACE, "ldap_int_tls_start: ld %p %ld s %ld us to go\n", 928 (void *)ld, (long) tv.tv_sec, (long) tv.tv_usec ); 929 } 930 } 931 } 932 if ( ld->ld_options.ldo_tm_net.tv_sec >= 0 ) { 933 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_SET_NONBLOCK, NULL ); 934 } 935 #endif /* LDAP_USE_NON_BLOCKING_TLS */ 936 937 if ( ret < 0 ) { 938 if ( ld->ld_errno == LDAP_SUCCESS ) 939 ld->ld_errno = LDAP_CONNECT_ERROR; 940 return (ld->ld_errno); 941 } 942 943 ssl = ldap_pvt_tls_sb_ctx( sb ); 944 assert( ssl != NULL ); 945 946 /* 947 * compare host with name(s) in certificate 948 */ 949 if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER && 950 ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW) { 951 ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host ); 952 if (ld->ld_errno != LDAP_SUCCESS) { 953 return ld->ld_errno; 954 } 955 } 956 957 return LDAP_SUCCESS; 958 } 959 960 void * 961 ldap_pvt_tls_sb_ctx( Sockbuf *sb ) 962 { 963 void *p = NULL; 964 965 ber_sockbuf_ctrl( sb, LBER_SB_OPT_GET_SSL, (void *)&p ); 966 return p; 967 } 968 969 int 970 ldap_pvt_tls_get_strength( void *s ) 971 { 972 tls_session *session = s; 973 974 return tls_imp->ti_session_strength( session ); 975 } 976 977 int 978 ldap_pvt_tls_get_my_dn( void *s, struct berval *dn, LDAPDN_rewrite_dummy *func, unsigned flags ) 979 { 980 tls_session *session = s; 981 struct berval der_dn; 982 int rc; 983 984 rc = tls_imp->ti_session_my_dn( session, &der_dn ); 985 if ( rc == LDAP_SUCCESS ) 986 rc = ldap_X509dn2bv(&der_dn, dn, (LDAPDN_rewrite_func *)func, flags ); 987 return rc; 988 } 989 #endif /* HAVE_TLS */ 990 991 int 992 ldap_start_tls( LDAP *ld, 993 LDAPControl **serverctrls, 994 LDAPControl **clientctrls, 995 int *msgidp ) 996 { 997 return ldap_extended_operation( ld, LDAP_EXOP_START_TLS, 998 NULL, serverctrls, clientctrls, msgidp ); 999 } 1000 1001 int 1002 ldap_install_tls( LDAP *ld ) 1003 { 1004 #ifndef HAVE_TLS 1005 return LDAP_NOT_SUPPORTED; 1006 #else 1007 if ( ldap_tls_inplace( ld ) ) { 1008 return LDAP_LOCAL_ERROR; 1009 } 1010 1011 return ldap_int_tls_start( ld, ld->ld_defconn, NULL ); 1012 #endif 1013 } 1014 1015 int 1016 ldap_start_tls_s ( LDAP *ld, 1017 LDAPControl **serverctrls, 1018 LDAPControl **clientctrls ) 1019 { 1020 #ifndef HAVE_TLS 1021 return LDAP_NOT_SUPPORTED; 1022 #else 1023 int rc; 1024 char *rspoid = NULL; 1025 struct berval *rspdata = NULL; 1026 1027 /* XXYYZ: this initiates operation only on default connection! */ 1028 1029 if ( ldap_tls_inplace( ld ) ) { 1030 return LDAP_LOCAL_ERROR; 1031 } 1032 1033 rc = ldap_extended_operation_s( ld, LDAP_EXOP_START_TLS, 1034 NULL, serverctrls, clientctrls, &rspoid, &rspdata ); 1035 1036 if ( rspoid != NULL ) { 1037 LDAP_FREE(rspoid); 1038 } 1039 1040 if ( rspdata != NULL ) { 1041 ber_bvfree( rspdata ); 1042 } 1043 1044 if ( rc == LDAP_SUCCESS ) { 1045 rc = ldap_int_tls_start( ld, ld->ld_defconn, NULL ); 1046 } 1047 1048 return rc; 1049 #endif 1050 } 1051 1052 /* These tags probably all belong in lber.h, but they're 1053 * not normally encountered when processing LDAP, so maybe 1054 * they belong somewhere else instead. 1055 */ 1056 1057 #define LBER_TAG_OID ((ber_tag_t) 0x06UL) 1058 1059 /* Tags for string types used in a DirectoryString. 1060 * 1061 * Note that IA5string is not one of the defined choices for 1062 * DirectoryString in X.520, but it gets used for email AVAs. 1063 */ 1064 #define LBER_TAG_UTF8 ((ber_tag_t) 0x0cUL) 1065 #define LBER_TAG_PRINTABLE ((ber_tag_t) 0x13UL) 1066 #define LBER_TAG_TELETEX ((ber_tag_t) 0x14UL) 1067 #define LBER_TAG_IA5 ((ber_tag_t) 0x16UL) 1068 #define LBER_TAG_UNIVERSAL ((ber_tag_t) 0x1cUL) 1069 #define LBER_TAG_BMP ((ber_tag_t) 0x1eUL) 1070 1071 static oid_name * 1072 find_oid( struct berval *oid ) 1073 { 1074 int i; 1075 1076 for ( i=0; !BER_BVISNULL( &oids[i].oid ); i++ ) { 1077 if ( oids[i].oid.bv_len != oid->bv_len ) continue; 1078 if ( !strcmp( oids[i].oid.bv_val, oid->bv_val )) 1079 return &oids[i]; 1080 } 1081 return NULL; 1082 } 1083 1084 /* Converts BER Bitstring value to LDAP BitString value (RFC4517) 1085 * 1086 * berValue : IN 1087 * rfc4517Value: OUT 1088 * 1089 * berValue and ldapValue should not be NULL 1090 */ 1091 1092 #define BITS_PER_BYTE 8 1093 #define SQUOTE_LENGTH 1 1094 #define B_CHAR_LENGTH 1 1095 #define STR_OVERHEAD (2*SQUOTE_LENGTH + B_CHAR_LENGTH) 1096 1097 static int 1098 der_to_ldap_BitString (struct berval *berValue, 1099 struct berval *ldapValue) 1100 { 1101 ber_len_t bitPadding=0; 1102 ber_len_t bits, maxBits; 1103 char *tmpStr; 1104 unsigned char byte; 1105 ber_len_t bitLength; 1106 ber_len_t valLen; 1107 unsigned char* valPtr; 1108 1109 ldapValue->bv_len=0; 1110 ldapValue->bv_val=NULL; 1111 1112 /* Gets padding and points to binary data */ 1113 valLen=berValue->bv_len; 1114 valPtr=(unsigned char*)berValue->bv_val; 1115 if (valLen) { 1116 bitPadding=(ber_len_t)(valPtr[0]); 1117 valLen--; 1118 valPtr++; 1119 } 1120 /* If Block is non DER encoding fixes to DER encoding */ 1121 if (bitPadding >= BITS_PER_BYTE) { 1122 if (valLen*BITS_PER_BYTE > bitPadding ) { 1123 valLen-=(bitPadding/BITS_PER_BYTE); 1124 bitPadding%=BITS_PER_BYTE; 1125 } else { 1126 valLen=0; 1127 bitPadding=0; 1128 } 1129 } 1130 /* Just in case bad encoding */ 1131 if (valLen*BITS_PER_BYTE < bitPadding ) { 1132 bitPadding=0; 1133 valLen=0; 1134 } 1135 1136 /* Gets buffer to hold RFC4517 Bit String format */ 1137 bitLength=valLen*BITS_PER_BYTE-bitPadding; 1138 tmpStr=LDAP_MALLOC(bitLength + STR_OVERHEAD + 1); 1139 1140 if (!tmpStr) 1141 return LDAP_NO_MEMORY; 1142 1143 ldapValue->bv_val=tmpStr; 1144 ldapValue->bv_len=bitLength + STR_OVERHEAD; 1145 1146 /* Formatting in '*binary-digit'B format */ 1147 maxBits=BITS_PER_BYTE; 1148 *tmpStr++ ='\''; 1149 while(valLen) { 1150 byte=*valPtr; 1151 if (valLen==1) 1152 maxBits-=bitPadding; 1153 for (bits=0; bits<maxBits; bits++) { 1154 if (0x80 & byte) 1155 *tmpStr='1'; 1156 else 1157 *tmpStr='0'; 1158 tmpStr++; 1159 byte<<=1; 1160 } 1161 valPtr++; 1162 valLen--; 1163 } 1164 *tmpStr++ ='\''; 1165 *tmpStr++ ='B'; 1166 *tmpStr=0; 1167 1168 return LDAP_SUCCESS; 1169 } 1170 1171 /* Convert a structured DN from an X.509 certificate into an LDAPV3 DN. 1172 * x509_name must be raw DER. If func is non-NULL, the 1173 * constructed DN will use numeric OIDs to identify attributeTypes, 1174 * and the func() will be invoked to rewrite the DN with the given 1175 * flags. 1176 * 1177 * Otherwise the DN will use shortNames from a hardcoded table. 1178 */ 1179 int 1180 ldap_X509dn2bv( void *x509_name, struct berval *bv, LDAPDN_rewrite_func *func, 1181 unsigned flags ) 1182 { 1183 LDAPDN newDN; 1184 LDAPRDN newRDN; 1185 LDAPAVA *newAVA, *baseAVA; 1186 BerElementBuffer berbuf; 1187 BerElement *ber = (BerElement *)&berbuf; 1188 char oids[8192], *oidptr = oids, *oidbuf = NULL; 1189 void *ptrs[2048]; 1190 char *dn_end, *rdn_end; 1191 int i, navas, nrdns, rc = LDAP_SUCCESS; 1192 size_t dnsize, oidrem = sizeof(oids), oidsize = 0; 1193 int csize; 1194 ber_tag_t tag; 1195 ber_len_t len; 1196 oid_name *oidname; 1197 1198 struct berval Oid, Val, oid2, *in = x509_name; 1199 1200 assert( bv != NULL ); 1201 1202 bv->bv_len = 0; 1203 bv->bv_val = NULL; 1204 1205 navas = 0; 1206 nrdns = 0; 1207 1208 /* A DN is a SEQUENCE of RDNs. An RDN is a SET of AVAs. 1209 * An AVA is a SEQUENCE of attr and value. 1210 * Count the number of AVAs and RDNs 1211 */ 1212 ber_init2( ber, in, LBER_USE_DER ); 1213 tag = ber_peek_tag( ber, &len ); 1214 if ( tag != LBER_SEQUENCE ) 1215 return LDAP_DECODING_ERROR; 1216 1217 for ( tag = ber_first_element( ber, &len, &dn_end ); 1218 tag == LBER_SET; 1219 tag = ber_next_element( ber, &len, dn_end )) { 1220 nrdns++; 1221 for ( tag = ber_first_element( ber, &len, &rdn_end ); 1222 tag == LBER_SEQUENCE; 1223 tag = ber_next_element( ber, &len, rdn_end )) { 1224 tag = ber_skip_tag( ber, &len ); 1225 ber_skip_data( ber, len ); 1226 navas++; 1227 } 1228 } 1229 1230 /* Allocate the DN/RDN/AVA stuff as a single block */ 1231 dnsize = sizeof(LDAPRDN) * (nrdns+1); 1232 dnsize += sizeof(LDAPAVA *) * (navas+nrdns); 1233 dnsize += sizeof(LDAPAVA) * navas; 1234 if (dnsize > sizeof(ptrs)) { 1235 newDN = (LDAPDN)LDAP_MALLOC( dnsize ); 1236 if ( newDN == NULL ) 1237 return LDAP_NO_MEMORY; 1238 } else { 1239 newDN = (LDAPDN)(char *)ptrs; 1240 } 1241 1242 newDN[nrdns] = NULL; 1243 newRDN = (LDAPRDN)(newDN + nrdns+1); 1244 newAVA = (LDAPAVA *)(newRDN + navas + nrdns); 1245 baseAVA = newAVA; 1246 1247 /* Rewind and start extracting */ 1248 ber_rewind( ber ); 1249 1250 tag = ber_first_element( ber, &len, &dn_end ); 1251 for ( i = nrdns - 1; i >= 0; i-- ) { 1252 newDN[i] = newRDN; 1253 1254 for ( tag = ber_first_element( ber, &len, &rdn_end ); 1255 tag == LBER_SEQUENCE; 1256 tag = ber_next_element( ber, &len, rdn_end )) { 1257 1258 *newRDN++ = newAVA; 1259 tag = ber_skip_tag( ber, &len ); 1260 tag = ber_get_stringbv( ber, &Oid, LBER_BV_NOTERM ); 1261 if ( tag != LBER_TAG_OID ) { 1262 rc = LDAP_DECODING_ERROR; 1263 goto nomem; 1264 } 1265 1266 oid2.bv_val = oidptr; 1267 oid2.bv_len = oidrem; 1268 if ( ber_decode_oid( &Oid, &oid2 ) < 0 ) { 1269 rc = LDAP_DECODING_ERROR; 1270 goto nomem; 1271 } 1272 oidname = find_oid( &oid2 ); 1273 if ( !oidname ) { 1274 newAVA->la_attr = oid2; 1275 oidptr += oid2.bv_len + 1; 1276 oidrem -= oid2.bv_len + 1; 1277 1278 /* Running out of OID buffer space? */ 1279 if (oidrem < 128) { 1280 if ( oidsize == 0 ) { 1281 oidsize = sizeof(oids) * 2; 1282 oidrem = oidsize; 1283 oidbuf = LDAP_MALLOC( oidsize ); 1284 if ( oidbuf == NULL ) goto nomem; 1285 oidptr = oidbuf; 1286 } else { 1287 char *old = oidbuf; 1288 oidbuf = LDAP_REALLOC( oidbuf, oidsize*2 ); 1289 if ( oidbuf == NULL ) goto nomem; 1290 /* Buffer moved! Fix AVA pointers */ 1291 if ( old != oidbuf ) { 1292 LDAPAVA *a; 1293 long dif = oidbuf - old; 1294 1295 for (a=baseAVA; a<=newAVA; a++){ 1296 if (a->la_attr.bv_val >= old && 1297 a->la_attr.bv_val <= (old + oidsize)) 1298 a->la_attr.bv_val += dif; 1299 } 1300 } 1301 oidptr = oidbuf + oidsize - oidrem; 1302 oidrem += oidsize; 1303 oidsize *= 2; 1304 } 1305 } 1306 } else { 1307 if ( func ) { 1308 newAVA->la_attr = oidname->oid; 1309 } else { 1310 newAVA->la_attr = oidname->name; 1311 } 1312 } 1313 newAVA->la_private = NULL; 1314 newAVA->la_flags = LDAP_AVA_STRING; 1315 tag = ber_get_stringbv( ber, &Val, LBER_BV_NOTERM ); 1316 switch(tag) { 1317 case LBER_TAG_UNIVERSAL: 1318 /* This uses 32-bit ISO 10646-1 */ 1319 csize = 4; goto to_utf8; 1320 case LBER_TAG_BMP: 1321 /* This uses 16-bit ISO 10646-1 */ 1322 csize = 2; goto to_utf8; 1323 case LBER_TAG_TELETEX: 1324 /* This uses 8-bit, assume ISO 8859-1 */ 1325 csize = 1; 1326 to_utf8: rc = ldap_ucs_to_utf8s( &Val, csize, &newAVA->la_value ); 1327 newAVA->la_flags |= LDAP_AVA_NONPRINTABLE; 1328 allocd: 1329 newAVA->la_flags |= LDAP_AVA_FREE_VALUE; 1330 if (rc != LDAP_SUCCESS) goto nomem; 1331 break; 1332 case LBER_TAG_UTF8: 1333 newAVA->la_flags |= LDAP_AVA_NONPRINTABLE; 1334 /* This is already in UTF-8 encoding */ 1335 case LBER_TAG_IA5: 1336 case LBER_TAG_PRINTABLE: 1337 /* These are always 7-bit strings */ 1338 newAVA->la_value = Val; 1339 break; 1340 case LBER_BITSTRING: 1341 /* X.690 bitString value converted to RFC4517 Bit String */ 1342 rc = der_to_ldap_BitString( &Val, &newAVA->la_value ); 1343 goto allocd; 1344 default: 1345 /* Not a string type at all */ 1346 newAVA->la_flags = 0; 1347 newAVA->la_value = Val; 1348 break; 1349 } 1350 newAVA++; 1351 } 1352 *newRDN++ = NULL; 1353 tag = ber_next_element( ber, &len, dn_end ); 1354 } 1355 1356 if ( func ) { 1357 rc = func( newDN, flags, NULL ); 1358 if ( rc != LDAP_SUCCESS ) 1359 goto nomem; 1360 } 1361 1362 rc = ldap_dn2bv_x( newDN, bv, LDAP_DN_FORMAT_LDAPV3, NULL ); 1363 1364 nomem: 1365 for (;baseAVA < newAVA; baseAVA++) { 1366 if (baseAVA->la_flags & LDAP_AVA_FREE_ATTR) 1367 LDAP_FREE( baseAVA->la_attr.bv_val ); 1368 if (baseAVA->la_flags & LDAP_AVA_FREE_VALUE) 1369 LDAP_FREE( baseAVA->la_value.bv_val ); 1370 } 1371 1372 if ( oidsize != 0 ) 1373 LDAP_FREE( oidbuf ); 1374 if ( newDN != (LDAPDN)(char *) ptrs ) 1375 LDAP_FREE( newDN ); 1376 return rc; 1377 } 1378 1379