2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2007 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
23 #include <ac/stdlib.h>
24 #include <ac/string.h>
35 #ifdef HAVE_CYRUS_SASL
36 # ifdef HAVE_SASL_SASL_H
37 # include <sasl/sasl.h>
42 # if SASL_VERSION_MAJOR >= 2
43 # ifdef HAVE_SASL_SASL_H
44 # include <sasl/saslplug.h>
46 # include <saslplug.h>
48 # define SASL_CONST const
53 #define SASL_VERSION_FULL ((SASL_VERSION_MAJOR << 16) |\
54 (SASL_VERSION_MINOR << 8) | SASL_VERSION_STEP)
56 static sasl_security_properties_t sasl_secprops;
57 #elif defined( SLAP_BUILTIN_SASL )
59 * built-in SASL implementation
60 * only supports EXTERNAL
62 typedef struct sasl_ctx {
63 slap_ssf_t sc_external_ssf;
64 struct berval sc_external_id;
71 static struct berval ext_bv = BER_BVC( "EXTERNAL" );
73 #ifdef HAVE_CYRUS_SASL
81 Connection *conn = context;
85 if ( message == NULL ) {
90 #if SASL_VERSION_MAJOR >= 2
92 level = LDAP_DEBUG_NONE;
96 level = LDAP_DEBUG_ANY;
100 level = LDAP_DEBUG_ANY;
104 level = LDAP_DEBUG_TRACE;
108 level = LDAP_DEBUG_TRACE;
112 level = LDAP_DEBUG_TRACE;
116 level = LDAP_DEBUG_TRACE;
120 level = LDAP_DEBUG_TRACE;
121 label = "Password Trace";
125 level = LDAP_DEBUG_ANY;
128 case SASL_LOG_WARNING:
129 level = LDAP_DEBUG_TRACE;
133 level = LDAP_DEBUG_TRACE;
138 return SASL_BADPARAM;
141 Debug( level, "SASL [conn=%ld] %s: %s\n",
142 conn ? conn->c_connid: -1,
150 #if SASL_VERSION_MAJOR >= 2
151 static const char *slap_propnames[] = {
152 "*slapConn", "*slapAuthcDN", "*slapAuthzDN", NULL };
154 static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
155 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
157 #define SLAP_SASL_PROP_CONN 0
158 #define SLAP_SASL_PROP_AUTHC 1
159 #define SLAP_SASL_PROP_AUTHZ 2
160 #define SLAP_SASL_PROP_COUNT 3 /* Number of properties we used */
162 typedef struct lookup_info {
164 const struct propval *list;
165 sasl_server_params_t *sparams;
168 static slap_response sasl_ap_lookup;
170 static struct berval sc_cleartext = BER_BVC("{CLEARTEXT}");
173 sasl_ap_lookup( Operation *op, SlapReply *rs )
176 AttributeDescription *ad;
180 lookup_info *sl = (lookup_info *)op->o_callback->sc_private;
182 if (rs->sr_type != REP_SEARCH) return 0;
184 for( i = 0; sl->list[i].name; i++ ) {
185 const char *name = sl->list[i].name;
187 if ( name[0] == '*' ) {
188 if ( sl->flags & SASL_AUXPROP_AUTHZID ) continue;
189 /* Skip our private properties */
190 if ( !strcmp( name, slap_propnames[0] )) {
191 i += SLAP_SASL_PROP_COUNT - 1;
195 } else if ( !(sl->flags & SASL_AUXPROP_AUTHZID ) )
198 if ( sl->list[i].values ) {
199 if ( !(sl->flags & SASL_AUXPROP_OVERRIDE) ) continue;
202 rc = slap_str2ad( name, &ad, &text );
203 if ( rc != LDAP_SUCCESS ) {
204 Debug( LDAP_DEBUG_TRACE,
205 "slap_ap_lookup: str2ad(%s): %s\n", name, text, 0 );
209 /* If it's the rootdn and a rootpw was present, we already set
210 * it so don't override it here.
212 if ( ad == slap_schema.si_ad_userPassword && sl->list[i].values &&
213 be_isroot_dn( op->o_bd, &op->o_req_ndn ))
216 a = attr_find( rs->sr_entry->e_attrs, ad );
218 if ( ! access_allowed( op, rs->sr_entry, ad, NULL, ACL_AUTH, NULL ) ) {
221 if ( sl->list[i].values && ( sl->flags & SASL_AUXPROP_OVERRIDE ) ) {
222 sl->sparams->utils->prop_erase( sl->sparams->propctx,
225 for ( bv = a->a_vals; bv->bv_val; bv++ ) {
226 /* ITS#3846 don't give hashed passwords to SASL */
227 if ( ad == slap_schema.si_ad_userPassword &&
228 bv->bv_val[0] == '{' /*}*/ )
230 if ( lutil_passwd_scheme( bv->bv_val ) ) {
231 /* If it's not a recognized scheme, just assume it's
232 * a cleartext password that happened to include brackets.
234 * If it's a recognized scheme, skip this value, unless the
235 * scheme is {CLEARTEXT}. In that case, skip over the
236 * scheme name and use the remainder. If there is nothing
237 * past the scheme name, skip this value.
239 #ifdef SLAPD_CLEARTEXT
240 if ( !ber_bvstrcasecmp( bv, &sc_cleartext ) ) {
242 cbv.bv_len = bv->bv_len - sc_cleartext.bv_len;
243 if ( cbv.bv_len > 0 ) {
244 cbv.bv_val = bv->bv_val + sc_cleartext.bv_len;
245 sl->sparams->utils->prop_set( sl->sparams->propctx,
246 sl->list[i].name, cbv.bv_val, cbv.bv_len );
253 sl->sparams->utils->prop_set( sl->sparams->propctx,
254 sl->list[i].name, bv->bv_val, bv->bv_len );
263 sasl_server_params_t *sparams,
270 Connection *conn = NULL;
273 sl.list = sparams->utils->prop_get( sparams->propctx );
274 sl.sparams = sparams;
277 /* Find our DN and conn first */
278 for( i = 0; sl.list[i].name; i++ ) {
279 if ( sl.list[i].name[0] == '*' ) {
280 if ( !strcmp( sl.list[i].name, slap_propnames[SLAP_SASL_PROP_CONN] ) ) {
281 if ( sl.list[i].values && sl.list[i].values[0] )
282 AC_MEMCPY( &conn, sl.list[i].values[0], sizeof( conn ) );
285 if ( (flags & SASL_AUXPROP_AUTHZID) &&
286 !strcmp( sl.list[i].name, slap_propnames[SLAP_SASL_PROP_AUTHZ] ) ) {
288 if ( sl.list[i].values && sl.list[i].values[0] )
289 AC_MEMCPY( &op.o_req_ndn, sl.list[i].values[0], sizeof( struct berval ) );
292 if ( !strcmp( sl.list[i].name, slap_propnames[SLAP_SASL_PROP_AUTHC] ) ) {
293 if ( sl.list[i].values && sl.list[i].values[0] ) {
294 AC_MEMCPY( &op.o_req_ndn, sl.list[i].values[0], sizeof( struct berval ) );
295 if ( !(flags & SASL_AUXPROP_AUTHZID) )
302 /* Now see what else needs to be fetched */
303 for( i = 0; sl.list[i].name; i++ ) {
304 const char *name = sl.list[i].name;
306 if ( name[0] == '*' ) {
307 if ( flags & SASL_AUXPROP_AUTHZID ) continue;
308 /* Skip our private properties */
309 if ( !strcmp( name, slap_propnames[0] )) {
310 i += SLAP_SASL_PROP_COUNT - 1;
314 } else if ( !(flags & SASL_AUXPROP_AUTHZID ) )
317 if ( sl.list[i].values ) {
318 if ( !(flags & SASL_AUXPROP_OVERRIDE) ) continue;
325 slap_callback cb = { NULL, sasl_ap_lookup, NULL, NULL };
329 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
332 /* For rootdn, see if we can use the rootpw */
333 if ( be_isroot_dn( op.o_bd, &op.o_req_ndn ) &&
334 !BER_BVISEMPTY( &op.o_bd->be_rootpw )) {
335 struct berval cbv = BER_BVNULL;
337 /* If there's a recognized scheme, see if it's CLEARTEXT */
338 if ( lutil_passwd_scheme( op.o_bd->be_rootpw.bv_val )) {
339 if ( !strncasecmp( op.o_bd->be_rootpw.bv_val,
340 sc_cleartext.bv_val, sc_cleartext.bv_len )) {
342 /* If it's CLEARTEXT, skip past scheme spec */
343 cbv.bv_len = op.o_bd->be_rootpw.bv_len -
346 cbv.bv_val = op.o_bd->be_rootpw.bv_val +
350 /* No scheme, use the whole value */
352 cbv = op.o_bd->be_rootpw;
354 if ( !BER_BVISEMPTY( &cbv )) {
355 for( i = 0; sl.list[i].name; i++ ) {
356 const char *name = sl.list[i].name;
358 if ( name[0] == '*' ) {
359 if ( flags & SASL_AUXPROP_AUTHZID ) continue;
361 } else if ( !(flags & SASL_AUXPROP_AUTHZID ) )
364 if ( !strcasecmp(name,"userPassword") ) {
365 sl.sparams->utils->prop_set( sl.sparams->propctx,
366 sl.list[i].name, cbv.bv_val, cbv.bv_len );
373 if ( op.o_bd->be_search ) {
374 SlapReply rs = {REP_RESULT};
375 op.o_hdr = conn->c_sasl_bindop->o_hdr;
376 op.o_tag = LDAP_REQ_SEARCH;
377 op.o_dn = conn->c_ndn;
378 op.o_ndn = conn->c_ndn;
380 slap_op_time( &op.o_time, &op.o_tincr );
381 op.o_do_not_cache = 1;
382 op.o_is_auth_check = 1;
383 op.o_req_dn = op.o_req_ndn;
384 op.ors_scope = LDAP_SCOPE_BASE;
385 op.ors_deref = LDAP_DEREF_NEVER;
386 op.ors_tlimit = SLAP_NO_LIMIT;
388 op.ors_filter = &generic_filter;
389 op.ors_filterstr = generic_filterstr;
390 /* FIXME: we want all attributes, right? */
393 op.o_bd->be_search( &op, &rs );
399 #if SASL_VERSION_FULL >= 0x020110
403 sasl_server_params_t *sparams,
404 struct propctx *prctx,
409 SlapReply rs = {REP_RESULT};
411 Connection *conn = NULL;
412 const struct propval *pr;
413 Modifications *modlist = NULL, **modtail = &modlist, *mod;
414 slap_callback cb = { NULL, slap_null_cb, NULL, NULL };
415 char textbuf[SLAP_TEXT_BUFLEN];
417 size_t textlen = sizeof(textbuf);
419 /* just checking if we are enabled */
420 if (!prctx) return SASL_OK;
422 if (!sparams || !user) return SASL_BADPARAM;
424 pr = sparams->utils->prop_get( sparams->propctx );
426 /* Find our DN and conn first */
427 for( i = 0; pr[i].name; i++ ) {
428 if ( pr[i].name[0] == '*' ) {
429 if ( !strcmp( pr[i].name, slap_propnames[SLAP_SASL_PROP_CONN] ) ) {
430 if ( pr[i].values && pr[i].values[0] )
431 AC_MEMCPY( &conn, pr[i].values[0], sizeof( conn ) );
434 if ( !strcmp( pr[i].name, slap_propnames[SLAP_SASL_PROP_AUTHC] ) ) {
435 if ( pr[i].values && pr[i].values[0] ) {
436 AC_MEMCPY( &op.o_req_ndn, pr[i].values[0], sizeof( struct berval ) );
441 if (!conn || !op.o_req_ndn.bv_val) return SASL_BADPARAM;
443 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
445 if ( !op.o_bd || !op.o_bd->be_modify ) return SASL_FAIL;
447 pr = sparams->utils->prop_get( prctx );
448 if (!pr) return SASL_BADPARAM;
450 for (i=0; pr[i].name; i++);
451 if (!i) return SASL_BADPARAM;
453 for (i=0; pr[i].name; i++) {
454 mod = (Modifications *)ch_malloc( sizeof(Modifications) );
455 mod->sml_op = LDAP_MOD_REPLACE;
457 ber_str2bv( pr[i].name, 0, 0, &mod->sml_type );
458 mod->sml_values = (struct berval *)ch_malloc( (pr[i].nvalues + 1) *
459 sizeof(struct berval));
460 for (j=0; j<pr[i].nvalues; j++) {
461 ber_str2bv( pr[i].values[j], 0, 1, &mod->sml_values[j]);
463 BER_BVZERO( &mod->sml_values[j] );
464 mod->sml_nvalues = NULL;
465 mod->sml_desc = NULL;
467 modtail = &mod->sml_next;
471 rc = slap_mods_check( &op, modlist, &text, textbuf, textlen, NULL );
473 if ( rc == LDAP_SUCCESS ) {
474 rc = slap_mods_no_user_mod_check( &op, modlist,
475 &text, textbuf, textlen );
477 if ( rc == LDAP_SUCCESS ) {
478 op.o_hdr = conn->c_sasl_bindop->o_hdr;
479 op.o_tag = LDAP_REQ_MODIFY;
480 op.o_ndn = op.o_req_ndn;
482 slap_op_time( &op.o_time, &op.o_tincr );
483 op.o_do_not_cache = 1;
484 op.o_is_auth_check = 1;
485 op.o_req_dn = op.o_req_ndn;
486 op.orm_modlist = modlist;
488 rc = op.o_bd->be_modify( &op, &rs );
491 slap_mods_free( modlist, 1 );
492 return rc != LDAP_SUCCESS ? SASL_FAIL : SASL_OK;
494 #endif /* SASL_VERSION_FULL >= 2.1.16 */
496 static sasl_auxprop_plug_t slap_auxprop_plugin = {
499 NULL, /* glob_context */
500 NULL, /* auxprop_free */
503 #if SASL_VERSION_FULL >= 0x020110
504 slap_auxprop_store /* the declaration of this member changed
505 * in cyrus SASL from 2.1.15 to 2.1.16 */
513 const sasl_utils_t *utils,
516 sasl_auxprop_plug_t **plug,
517 const char *plugname)
519 if ( !out_version || !plug ) return SASL_BADPARAM;
521 if ( max_version < SASL_AUXPROP_PLUG_VERSION ) return SASL_BADVERS;
523 *out_version = SASL_AUXPROP_PLUG_VERSION;
524 *plug = &slap_auxprop_plugin;
528 /* Convert a SASL authcid or authzid into a DN. Store the DN in an
529 * auxiliary property, so that we can refer to it in sasl_authorize
530 * without interfering with anything else. Also, the SASL username
531 * buffer is constrained to 256 characters, and our DNs could be
532 * much longer (SLAP_LDAPDN_MAXLEN, currently set to 8192)
535 slap_sasl_canonicalize(
541 const char *user_realm,
546 Connection *conn = (Connection *)context;
547 struct propctx *props = sasl_auxprop_getctx( sconn );
548 struct propval auxvals[ SLAP_SASL_PROP_COUNT ] = { { 0 } };
551 const char *names[2];
556 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
557 conn ? conn->c_connid : -1,
558 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
559 in ? in : "<empty>");
561 /* If name is too big, just truncate. We don't care, we're
562 * using DNs, not the usernames.
564 if ( inlen > out_max )
567 /* This is a Simple Bind using SPASSWD. That means the in-directory
568 * userPassword of the Binding user already points at SASL, so it
569 * cannot be used to actually satisfy a password comparison. Just
570 * ignore it, some other mech will process it.
572 if ( !conn->c_sasl_bindop ||
573 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) goto done;
575 /* See if we need to add request, can only do it once */
576 prop_getnames( props, slap_propnames, auxvals );
577 if ( !auxvals[0].name )
578 prop_request( props, slap_propnames );
580 if ( flags & SASL_CU_AUTHID )
581 which = SLAP_SASL_PROP_AUTHC;
583 which = SLAP_SASL_PROP_AUTHZ;
585 /* Need to store the Connection for auxprop_lookup */
586 if ( !auxvals[SLAP_SASL_PROP_CONN].values ) {
587 names[0] = slap_propnames[SLAP_SASL_PROP_CONN];
589 prop_set( props, names[0], (char *)&conn, sizeof( conn ) );
592 /* Already been here? */
593 if ( auxvals[which].values )
596 /* Normally we require an authzID to have a u: or dn: prefix.
597 * However, SASL frequently gives us an authzID that is just
598 * an exact copy of the authcID, without a prefix. We need to
599 * detect and allow this condition. If SASL calls canonicalize
600 * with SASL_CU_AUTHID|SASL_CU_AUTHZID this is a no-brainer.
601 * But if it's broken into two calls, we need to remember the
602 * authcID so that we can compare the authzID later. We store
603 * the authcID temporarily in conn->c_sasl_dn. We necessarily
604 * finish Canonicalizing before Authorizing, so there is no
605 * conflict with slap_sasl_authorize's use of this temp var.
607 * The SASL EXTERNAL mech is backwards from all the other mechs,
608 * it does authzID before the authcID. If we see that authzID
609 * has already been done, don't do anything special with authcID.
611 if ( flags == SASL_CU_AUTHID && !auxvals[SLAP_SASL_PROP_AUTHZ].values ) {
612 conn->c_sasl_dn.bv_val = (char *) in;
613 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
614 rc = strcmp( in, conn->c_sasl_dn.bv_val );
615 conn->c_sasl_dn.bv_val = NULL;
616 /* They were equal, no work needed */
617 if ( !rc ) goto done;
620 bvin.bv_val = (char *)in;
622 rc = slap_sasl_getdn( conn, NULL, &bvin, (char *)user_realm, &dn,
623 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
624 if ( rc != LDAP_SUCCESS ) {
625 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
629 names[0] = slap_propnames[which];
632 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
634 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
635 conn ? conn->c_connid : -1, names[0]+1,
636 dn.bv_val ? dn.bv_val : "<EMPTY>" );
639 AC_MEMCPY( out, in, inlen );
651 char *requested_user,
655 const char *def_realm,
657 struct propctx *props)
659 Connection *conn = (Connection *)context;
661 * (SLAP_SASL_PROP_COUNT - 1) because we skip "conn",
662 * + 1 for NULL termination?
664 struct propval auxvals[ SLAP_SASL_PROP_COUNT ] = { { 0 } };
665 struct berval authcDN, authzDN = BER_BVNULL;
668 /* Simple Binds don't support proxy authorization, ignore it */
669 if ( !conn->c_sasl_bindop ||
670 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) return SASL_OK;
672 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
673 "authcid=\"%s\" authzid=\"%s\"\n",
674 conn ? conn->c_connid : -1, auth_identity, requested_user );
675 if ( conn->c_sasl_dn.bv_val ) {
676 ch_free( conn->c_sasl_dn.bv_val );
677 BER_BVZERO( &conn->c_sasl_dn );
680 /* Skip SLAP_SASL_PROP_CONN */
681 prop_getnames( props, slap_propnames+1, auxvals );
683 /* Should not happen */
684 if ( !auxvals[0].values ) {
685 sasl_seterror( sconn, 0, "invalid authcid" );
689 AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
690 conn->c_sasl_dn = authcDN;
692 /* Nothing to do if no authzID was given */
693 if ( !auxvals[1].name || !auxvals[1].values ) {
697 AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
699 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
700 if ( rc != LDAP_SUCCESS ) {
701 Debug( LDAP_DEBUG_TRACE, "SASL Proxy Authorize [conn=%ld]: "
702 "proxy authorization disallowed (%d)\n",
703 (long) (conn ? conn->c_connid : -1), rc, 0 );
705 sasl_seterror( sconn, 0, "not authorized" );
706 ch_free( authzDN.bv_val );
710 /* FIXME: we need yet another dup because slap_sasl_getdn()
711 * is using the bind operation slab */
712 if ( conn->c_sasl_bindop ) {
713 ber_dupbv( &conn->c_sasl_authz_dn, &authzDN );
714 slap_sl_free( authzDN.bv_val,
715 conn->c_sasl_bindop->o_tmpmemctx );
718 conn->c_sasl_authz_dn = authzDN;
722 if (conn->c_sasl_bindop) {
723 Statslog( LDAP_DEBUG_STATS,
724 "conn=%lu op=%lu BIND authcid=\"%s\" authzid=\"%s\"\n",
725 conn->c_connid, conn->c_sasl_bindop->o_opid,
726 auth_identity, requested_user, 0);
729 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
730 " proxy authorization allowed authzDN=\"%s\"\n",
731 (long) (conn ? conn->c_connid : -1),
732 authzDN.bv_val ? authzDN.bv_val : "", 0 );
744 struct berval authcDN, authzDN = BER_BVNULL;
746 Connection *conn = context;
748 struct berval bvauthcid, bvauthzid;
751 if ( conn->c_sasl_dn.bv_val ) {
752 ch_free( conn->c_sasl_dn.bv_val );
753 BER_BVZERO( &conn->c_sasl_dn );
756 Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
757 "authcid=\"%s\" authzid=\"%s\"\n",
758 (long) (conn ? conn->c_connid : -1),
759 authcid ? authcid : "<empty>",
760 authzid ? authzid : "<empty>" );
762 /* Figure out how much data we have for the dn */
763 rc = sasl_getprop( conn->c_sasl_authctx, SASL_REALM, (void **)&realm );
764 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
765 Debug(LDAP_DEBUG_TRACE,
766 "authorize: getprop(REALM) failed!\n", 0,0,0);
767 *errstr = "Could not extract realm";
771 /* Convert the identities to DN's. If no authzid was given, client will
772 be bound as the DN matching their username */
773 bvauthcid.bv_val = authcid;
774 bvauthcid.bv_len = authcid ? strlen( authcid ) : 0;
775 rc = slap_sasl_getdn( conn, NULL, &bvauthcid, realm,
776 &authcDN, SLAP_GETDN_AUTHCID );
777 if( rc != LDAP_SUCCESS ) {
778 *errstr = ldap_err2string( rc );
781 conn->c_sasl_dn = authcDN;
782 if( ( authzid == NULL ) || !strcmp( authcid, authzid ) ) {
783 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
784 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
789 bvauthzid.bv_val = authzid;
790 bvauthzid.bv_len = authzid ? strlen( authzid ) : 0;
791 rc = slap_sasl_getdn( conn, NULL, &bvauthzid, realm,
792 &authzDN, SLAP_GETDN_AUTHZID );
793 if( rc != LDAP_SUCCESS ) {
794 *errstr = ldap_err2string( rc );
798 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
800 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
801 "proxy authorization disallowed (%d)\n",
802 (long) (conn ? conn->c_connid : -1), rc, 0 );
804 *errstr = "not authorized";
805 ch_free( authzDN.bv_val );
809 /* FIXME: we need yet another dup because slap_sasl_getdn()
810 * is using the bind operation slab */
811 if ( conn->c_sasl_bindop ) {
812 ber_dupbv( &conn->c_sasl_authz_dn, &authzDN );
813 slap_sl_free( authzDN.bv_val,
814 conn->c_sasl_bindop->o_tmpmemctx );
817 conn->c_sasl_authz_dn = authzDN;
821 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
822 " authorization allowed authzDN=\"%s\"\n",
823 (long) (conn ? conn->c_connid : -1),
824 authzDN.bv_val ? authzDN.bv_val : "", 0 );
826 if ( conn->c_sasl_bindop ) {
827 Statslog( LDAP_DEBUG_STATS,
828 "conn=%lu op=%lu BIND authcid=\"%s\" authzid=\"%s\"\n",
829 conn->c_connid, conn->c_sasl_bindop->o_opid,
830 authcid, authzid ? authzid : "", 0);
836 #endif /* SASL_VERSION_MAJOR >= 2 */
839 slap_sasl_err2ldap( int saslerr )
843 /* map SASL errors to LDAP resultCode returned by:
845 * SASL_OK, SASL_NOMEM
847 * SASL_OK, SASL_CONTINUE, SASL_TRANS, SASL_BADPARAM, SASL_BADPROT,
849 * sasl_server_start()
852 * SASL_OK, SASL_BADPARAM
860 rc = LDAP_SASL_BIND_IN_PROGRESS;
867 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
873 rc = LDAP_INVALID_CREDENTIALS;
876 rc = LDAP_INSUFFICIENT_ACCESS;
880 rc = LDAP_INAPPROPRIATE_AUTH;
884 rc = LDAP_UNAVAILABLE;
887 rc = LDAP_UNWILLING_TO_PERFORM;
899 static struct berval sasl_pwscheme = BER_BVC("{SASL}");
902 const struct berval *sc,
903 const struct berval * passwd,
904 const struct berval * cred,
909 void *ctx, *sconn = NULL;
911 for( i=0; i<cred->bv_len; i++) {
912 if(cred->bv_val[i] == '\0') {
913 return LUTIL_PASSWD_ERR; /* NUL character in password */
917 if( cred->bv_val[i] != '\0' ) {
918 return LUTIL_PASSWD_ERR; /* cred must behave like a string */
921 for( i=0; i<passwd->bv_len; i++) {
922 if(passwd->bv_val[i] == '\0') {
923 return LUTIL_PASSWD_ERR; /* NUL character in password */
927 if( passwd->bv_val[i] != '\0' ) {
928 return LUTIL_PASSWD_ERR; /* passwd must behave like a string */
931 rtn = LUTIL_PASSWD_ERR;
933 ctx = ldap_pvt_thread_pool_context();
934 ldap_pvt_thread_pool_getkey( ctx, slap_sasl_bind, &sconn, NULL );
936 if( sconn != NULL ) {
938 # if SASL_VERSION_MAJOR < 2
939 sc = sasl_checkpass( sconn,
940 passwd->bv_val, passwd->bv_len,
941 cred->bv_val, cred->bv_len,
944 sc = sasl_checkpass( sconn,
945 passwd->bv_val, passwd->bv_len,
946 cred->bv_val, cred->bv_len );
948 rtn = ( sc != SASL_OK ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
953 #endif /* SLAPD_SPASSWD */
955 #endif /* HAVE_CYRUS_SASL */
957 #ifdef ENABLE_REWRITE
959 typedef struct slapd_map_data {
961 struct berval filter;
962 AttributeName attrs[2];
967 slapd_rw_config( const char *fname, int lineno, int argc, char **argv )
969 slapd_map_data *ret = NULL;
970 LDAPURLDesc *lud = NULL;
972 AttributeDescription *ad = NULL;
974 struct berval dn, ndn;
977 Debug( LDAP_DEBUG_ANY,
978 "[%s:%d] slapd map needs URI\n",
984 if ( strncasecmp( uri, "uri=", STRLENOF( "uri=" ) ) == 0 ) {
985 uri += STRLENOF( "uri=" );
988 if ( ldap_url_parse( uri, &lud ) != LDAP_URL_SUCCESS ) {
989 Debug( LDAP_DEBUG_ANY,
990 "[%s:%d] illegal URI '%s'\n",
991 fname, lineno, uri );
995 if ( strcasecmp( lud->lud_scheme, "ldap" )) {
996 Debug( LDAP_DEBUG_ANY,
997 "[%s:%d] illegal URI scheme '%s'\n",
998 fname, lineno, lud->lud_scheme );
1002 if (( lud->lud_host && lud->lud_host[0] ) || lud->lud_exts
1004 Debug( LDAP_DEBUG_ANY,
1005 "[%s:%d] illegal URI '%s'\n",
1006 fname, lineno, uri );
1010 if ( lud->lud_attrs ) {
1011 if ( lud->lud_attrs[1] ) {
1012 Debug( LDAP_DEBUG_ANY,
1013 "[%s:%d] only one attribute allowed in URI\n",
1017 if ( strcasecmp( lud->lud_attrs[0], "dn" ) &&
1018 strcasecmp( lud->lud_attrs[0], "entryDN" )) {
1020 rc = slap_str2ad( lud->lud_attrs[0], &ad, &text );
1025 ber_str2bv( lud->lud_dn, 0, 0, &dn );
1026 if ( dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL ))
1029 if ( lud->lud_filter ) {
1030 flen = strlen( lud->lud_filter ) + 1;
1032 ret = ch_malloc( sizeof( slapd_map_data ) + flen );
1035 ret->filter.bv_val = (char *)(ret+1);
1036 ret->filter.bv_len = flen - 1;
1037 strcpy( ret->filter.bv_val, lud->lud_filter );
1039 BER_BVZERO( &ret->filter );
1041 ret->scope = lud->lud_scope;
1043 ret->attrs[0].an_name = ad->ad_cname;
1045 BER_BVZERO( &ret->attrs[0].an_name );
1047 ret->attrs[0].an_desc = ad;
1048 BER_BVZERO( &ret->attrs[1].an_name );
1050 ldap_free_urldesc( lud );
1054 struct slapd_rw_info {
1055 slapd_map_data *si_data;
1056 struct berval si_val;
1060 slapd_rw_cb( Operation *op, SlapReply *rs )
1062 if ( rs->sr_type == REP_SEARCH ) {
1063 struct slapd_rw_info *si = op->o_callback->sc_private;
1065 if ( si->si_data->attrs[0].an_desc ) {
1068 a = attr_find( rs->sr_entry->e_attrs,
1069 si->si_data->attrs[0].an_desc );
1071 ber_dupbv( &si->si_val, a->a_vals );
1074 ber_dupbv( &si->si_val, &rs->sr_entry->e_name );
1077 return LDAP_SUCCESS;
1081 slapd_rw_apply( void *private, const char *filter, struct berval *val )
1083 slapd_map_data *sl = private;
1084 slap_callback cb = { NULL };
1085 Connection conn = {0};
1086 OperationBuffer opbuf;
1089 SlapReply rs = {REP_RESULT};
1090 struct slapd_rw_info si;
1094 thrctx = ldap_pvt_thread_pool_context();
1095 op = (Operation *)&opbuf;
1096 connection_fake_init2( &conn, op, thrctx, 0 );
1098 op->o_tag = LDAP_REQ_SEARCH;
1099 op->o_req_dn = op->o_req_ndn = sl->base;
1100 op->o_bd = select_backend( &op->o_req_ndn, 0, 1 );
1105 BER_BVZERO( &si.si_val );
1106 op->ors_scope = sl->scope;
1107 op->ors_deref = LDAP_DEREF_NEVER;
1109 op->ors_tlimit = SLAP_NO_LIMIT;
1110 if ( sl->attrs[0].an_desc ) {
1111 op->ors_attrs = sl->attrs;
1113 op->ors_attrs = slap_anlist_no_attrs;
1116 rc = strlen( filter );
1120 rc += sl->filter.bv_len;
1121 ptr = op->ors_filterstr.bv_val = op->o_tmpalloc( rc + 1, op->o_tmpmemctx );
1122 if ( sl->filter.bv_len ) {
1123 ptr = lutil_strcopy( ptr, sl->filter.bv_val );
1125 strcpy( ptr, filter );
1126 op->ors_filter = str2filter_x( op, op->ors_filterstr.bv_val );
1127 if ( !op->ors_filter ) {
1128 op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1132 op->ors_attrsonly = 0;
1133 op->o_dn = op->o_bd->be_rootdn;
1134 op->o_ndn = op->o_bd->be_rootndn;
1135 op->o_do_not_cache = 1;
1137 cb.sc_response = slapd_rw_cb;
1138 cb.sc_private = &si;
1139 op->o_callback = &cb;
1141 rc = op->o_bd->be_search( op, &rs );
1142 if ( rc == LDAP_SUCCESS && !BER_BVISNULL( &si.si_val )) {
1144 rc = REWRITE_SUCCESS;
1146 if ( !BER_BVISNULL( &si.si_val )) {
1147 ch_free( si.si_val.bv_val );
1151 filter_free_x( op, op->ors_filter );
1152 op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1157 slapd_rw_destroy( void *private )
1159 slapd_map_data *md = private;
1161 assert( private != NULL );
1163 ch_free( md->base.bv_val );
1164 ch_free( md->filter.bv_val );
1170 static const rewrite_mapper slapd_mapper = {
1178 int slap_sasl_init( void )
1180 #ifdef HAVE_CYRUS_SASL
1182 static sasl_callback_t server_callbacks[] = {
1183 { SASL_CB_LOG, &slap_sasl_log, NULL },
1184 { SASL_CB_LIST_END, NULL, NULL }
1188 #ifdef ENABLE_REWRITE
1189 rewrite_mapper_register( &slapd_mapper );
1192 #ifdef HAVE_CYRUS_SASL
1193 #ifdef HAVE_SASL_VERSION
1194 /* stringify the version number, sasl.h doesn't do it for us */
1195 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1196 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1197 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1200 sasl_version( NULL, &rc );
1201 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1202 (rc & 0xffff) < SASL_VERSION_STEP)
1204 char version[sizeof("xxx.xxx.xxxxx")];
1205 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1207 Debug( LDAP_DEBUG_ANY, "slap_sasl_init: SASL library version mismatch:"
1208 " expected " SASL_VERSION_STRING ","
1209 " got %s\n", version, 0, 0 );
1214 /* SASL 2 does its own memory management internally */
1215 #if SASL_VERSION_MAJOR < 2
1224 ldap_pvt_sasl_mutex_new,
1225 ldap_pvt_sasl_mutex_lock,
1226 ldap_pvt_sasl_mutex_unlock,
1227 ldap_pvt_sasl_mutex_dispose );
1229 #if SASL_VERSION_MAJOR >= 2
1230 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1232 rc = sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1233 if( rc != SASL_OK ) {
1234 Debug( LDAP_DEBUG_ANY, "slap_sasl_init: auxprop add plugin failed\n",
1239 /* should provide callbacks for logging */
1240 /* server name should be configurable */
1241 rc = sasl_server_init( server_callbacks, "slapd" );
1243 if( rc != SASL_OK ) {
1244 Debug( LDAP_DEBUG_ANY, "slap_sasl_init: server init failed\n",
1246 #if SASL_VERSION_MAJOR < 2
1247 /* A no-op used to make sure we linked with Cyrus 1.5 */
1248 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1254 #ifdef SLAPD_SPASSWD
1255 lutil_passwd_add( &sasl_pwscheme, chk_sasl, NULL );
1258 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1261 /* default security properties */
1262 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1263 sasl_secprops.max_ssf = INT_MAX;
1264 sasl_secprops.maxbufsize = 65536;
1265 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1271 int slap_sasl_destroy( void )
1273 #ifdef HAVE_CYRUS_SASL
1276 free( global_host );
1282 #if SASL_VERSION_MAJOR >= 2
1284 slap_sasl_peer2ipport( struct berval *peer )
1288 *addr = &peer->bv_val[ STRLENOF( "IP=" ) ];
1289 ber_len_t plen = peer->bv_len - STRLENOF( "IP=" );
1292 if ( addr[0] == '[' ) {
1296 ipport = ch_strdup( &addr[isv6] );
1298 /* Convert IPv6/IPv4 addresses to address;port syntax. */
1299 p = strrchr( ipport, ':' );
1303 assert( p[-1] == ']' );
1304 AC_MEMCPY( &p[-1], p, plen - ( p - ipport ) + 1 );
1307 } else if ( isv6 ) {
1310 assert( addr[plen] == ']' );
1318 int slap_sasl_open( Connection *conn, int reopen )
1320 int sc = LDAP_SUCCESS;
1321 #ifdef HAVE_CYRUS_SASL
1324 sasl_conn_t *ctx = NULL;
1325 sasl_callback_t *session_callbacks;
1327 #if SASL_VERSION_MAJOR >= 2
1328 char *ipremoteport = NULL, *iplocalport = NULL;
1331 assert( conn->c_sasl_authctx == NULL );
1334 assert( conn->c_sasl_extra == NULL );
1337 #if SASL_VERSION_MAJOR >= 2
1338 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1340 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1342 if( session_callbacks == NULL ) {
1343 Debug( LDAP_DEBUG_ANY,
1344 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1347 conn->c_sasl_extra = session_callbacks;
1349 session_callbacks[cb=0].id = SASL_CB_LOG;
1350 session_callbacks[cb].proc = &slap_sasl_log;
1351 session_callbacks[cb++].context = conn;
1353 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1354 session_callbacks[cb].proc = &slap_sasl_authorize;
1355 session_callbacks[cb++].context = conn;
1357 #if SASL_VERSION_MAJOR >= 2
1358 session_callbacks[cb].id = SASL_CB_CANON_USER;
1359 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1360 session_callbacks[cb++].context = conn;
1363 session_callbacks[cb].id = SASL_CB_LIST_END;
1364 session_callbacks[cb].proc = NULL;
1365 session_callbacks[cb++].context = NULL;
1367 session_callbacks = conn->c_sasl_extra;
1370 conn->c_sasl_layers = 0;
1372 /* create new SASL context */
1373 #if SASL_VERSION_MAJOR >= 2
1374 if ( conn->c_sock_name.bv_len != 0 &&
1375 strncmp( conn->c_sock_name.bv_val, "IP=", STRLENOF( "IP=" ) ) == 0 )
1377 iplocalport = slap_sasl_peer2ipport( &conn->c_sock_name );
1380 if ( conn->c_peer_name.bv_len != 0 &&
1381 strncmp( conn->c_peer_name.bv_val, "IP=", STRLENOF( "IP=" ) ) == 0 )
1383 ipremoteport = slap_sasl_peer2ipport( &conn->c_peer_name );
1386 sc = sasl_server_new( "ldap", global_host, global_realm,
1387 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1388 if ( iplocalport != NULL ) {
1389 ch_free( iplocalport );
1391 if ( ipremoteport != NULL ) {
1392 ch_free( ipremoteport );
1395 sc = sasl_server_new( "ldap", global_host, global_realm,
1396 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1399 if( sc != SASL_OK ) {
1400 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1406 conn->c_sasl_authctx = ctx;
1408 if( sc == SASL_OK ) {
1409 sc = sasl_setprop( ctx,
1410 SASL_SEC_PROPS, &sasl_secprops );
1412 if( sc != SASL_OK ) {
1413 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1416 slap_sasl_close( conn );
1421 sc = slap_sasl_err2ldap( sc );
1423 #elif defined(SLAP_BUILTIN_SASL)
1424 /* built-in SASL implementation */
1425 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1426 if( ctx == NULL ) return -1;
1428 ctx->sc_external_ssf = 0;
1429 BER_BVZERO( &ctx->sc_external_id );
1431 conn->c_sasl_authctx = ctx;
1437 int slap_sasl_external(
1440 struct berval *auth_id )
1442 #if SASL_VERSION_MAJOR >= 2
1444 sasl_conn_t *ctx = conn->c_sasl_authctx;
1446 if ( ctx == NULL ) {
1447 return LDAP_UNAVAILABLE;
1450 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1452 if ( sc != SASL_OK ) {
1456 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1457 auth_id ? auth_id->bv_val : NULL );
1459 if ( sc != SASL_OK ) {
1463 #elif defined(HAVE_CYRUS_SASL)
1465 sasl_conn_t *ctx = conn->c_sasl_authctx;
1466 sasl_external_properties_t extprops;
1468 if ( ctx == NULL ) {
1469 return LDAP_UNAVAILABLE;
1472 memset( &extprops, '\0', sizeof(extprops) );
1474 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1476 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1477 (void *) &extprops );
1479 if ( sc != SASL_OK ) {
1482 #elif defined(SLAP_BUILTIN_SASL)
1483 /* built-in SASL implementation */
1484 SASL_CTX *ctx = conn->c_sasl_authctx;
1485 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1487 ctx->sc_external_ssf = ssf;
1489 ctx->sc_external_id = *auth_id;
1490 BER_BVZERO( auth_id );
1492 BER_BVZERO( &ctx->sc_external_id );
1496 return LDAP_SUCCESS;
1499 int slap_sasl_reset( Connection *conn )
1501 return LDAP_SUCCESS;
1504 char ** slap_sasl_mechs( Connection *conn )
1506 char **mechs = NULL;
1508 #ifdef HAVE_CYRUS_SASL
1509 sasl_conn_t *ctx = conn->c_sasl_authctx;
1511 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1515 SASL_CONST char *mechstr;
1517 sc = sasl_listmech( ctx,
1518 NULL, NULL, ",", NULL,
1519 &mechstr, NULL, NULL );
1521 if( sc != SASL_OK ) {
1522 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1528 mechs = ldap_str2charray( mechstr, "," );
1530 #if SASL_VERSION_MAJOR < 2
1534 #elif defined(SLAP_BUILTIN_SASL)
1535 /* builtin SASL implementation */
1536 SASL_CTX *ctx = conn->c_sasl_authctx;
1537 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1538 /* should check ssf */
1539 mechs = ldap_str2charray( "EXTERNAL", "," );
1546 int slap_sasl_close( Connection *conn )
1548 #ifdef HAVE_CYRUS_SASL
1549 sasl_conn_t *ctx = conn->c_sasl_authctx;
1552 sasl_dispose( &ctx );
1554 if ( conn->c_sasl_sockctx &&
1555 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1557 ctx = conn->c_sasl_sockctx;
1558 sasl_dispose( &ctx );
1561 conn->c_sasl_authctx = NULL;
1562 conn->c_sasl_sockctx = NULL;
1563 conn->c_sasl_done = 0;
1565 free( conn->c_sasl_extra );
1566 conn->c_sasl_extra = NULL;
1568 #elif defined(SLAP_BUILTIN_SASL)
1569 SASL_CTX *ctx = conn->c_sasl_authctx;
1571 if( ctx->sc_external_id.bv_val ) {
1572 free( ctx->sc_external_id.bv_val );
1573 BER_BVZERO( &ctx->sc_external_id );
1576 conn->c_sasl_authctx = NULL;
1580 return LDAP_SUCCESS;
1583 int slap_sasl_bind( Operation *op, SlapReply *rs )
1585 #ifdef HAVE_CYRUS_SASL
1586 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1587 struct berval response;
1588 unsigned reslen = 0;
1591 Debug(LDAP_DEBUG_ARGS,
1592 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1593 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1594 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1595 op->o_conn->c_sasl_bind_mech.bv_val,
1596 op->orb_cred.bv_len );
1599 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1600 "SASL unavailable on this session" );
1604 #if SASL_VERSION_MAJOR >= 2
1605 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1606 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1607 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1608 sasl_server_step( ctx, cred, clen, resp, rlen )
1610 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1611 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1612 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1613 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1616 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1617 /* If we already authenticated once, must use a new context */
1618 if ( op->o_conn->c_sasl_done ) {
1620 const char *authid = NULL;
1621 #if SASL_VERSION_MAJOR >= 2
1622 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1623 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1624 if ( authid ) authid = ch_strdup( authid );
1626 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1627 sasl_dispose( &ctx );
1629 op->o_conn->c_sasl_authctx = NULL;
1631 slap_sasl_open( op->o_conn, 1 );
1632 ctx = op->o_conn->c_sasl_authctx;
1633 #if SASL_VERSION_MAJOR >= 2
1635 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1636 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1637 ch_free( (char *)authid );
1642 op->o_conn->c_sasl_bind_mech.bv_val,
1643 op->orb_cred.bv_val, op->orb_cred.bv_len,
1644 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1648 op->orb_cred.bv_val, op->orb_cred.bv_len,
1649 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1652 response.bv_len = reslen;
1654 if ( sc == SASL_OK ) {
1655 sasl_ssf_t *ssf = NULL;
1657 op->orb_edn = op->o_conn->c_sasl_dn;
1658 BER_BVZERO( &op->o_conn->c_sasl_dn );
1659 op->o_conn->c_sasl_done = 1;
1661 rs->sr_err = LDAP_SUCCESS;
1663 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1664 op->orb_ssf = ssf ? *ssf : 0;
1668 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1669 op->o_conn->c_sasl_layers++;
1671 /* If there's an old layer, set sockctx to NULL to
1672 * tell connection_read() to wait for us to finish.
1673 * Otherwise there is a race condition: we have to
1674 * send the Bind response using the old security
1675 * context and then remove it before reading any
1678 if ( op->o_conn->c_sasl_sockctx ) {
1679 ctx = op->o_conn->c_sasl_sockctx;
1680 op->o_conn->c_sasl_sockctx = NULL;
1682 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1684 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1687 /* Must send response using old security layer */
1688 if (response.bv_len) rs->sr_sasldata = &response;
1689 send_ldap_sasl( op, rs );
1691 /* Now dispose of the old security layer.
1694 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1695 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1696 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1697 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1698 sasl_dispose( &ctx );
1700 } else if ( sc == SASL_CONTINUE ) {
1701 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1702 #if SASL_VERSION_MAJOR >= 2
1703 rs->sr_text = sasl_errdetail( ctx );
1705 rs->sr_sasldata = &response;
1706 send_ldap_sasl( op, rs );
1709 #if SASL_VERSION_MAJOR >= 2
1710 rs->sr_text = sasl_errdetail( ctx );
1712 rs->sr_err = slap_sasl_err2ldap( sc ),
1713 send_ldap_result( op, rs );
1716 #if SASL_VERSION_MAJOR < 2
1717 if( response.bv_len ) ch_free( response.bv_val );
1720 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1722 #elif defined(SLAP_BUILTIN_SASL)
1723 /* built-in SASL implementation */
1724 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1726 if ( ctx == NULL ) {
1727 send_ldap_error( op, rs, LDAP_OTHER,
1728 "Internal SASL Error" );
1730 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1733 if( op->orb_cred.bv_len ) {
1734 rs->sr_text = "proxy authorization not support";
1735 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1736 send_ldap_result( op, rs );
1739 op->orb_edn = ctx->sc_external_id;
1740 rs->sr_err = LDAP_SUCCESS;
1741 rs->sr_sasldata = NULL;
1742 send_ldap_sasl( op, rs );
1746 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1747 "requested SASL mechanism not supported" );
1750 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1751 "SASL not supported" );
1757 char* slap_sasl_secprops( const char *in )
1759 #ifdef HAVE_CYRUS_SASL
1760 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1762 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1764 return "SASL not supported";
1768 void slap_sasl_secprops_unparse( struct berval *bv )
1770 #ifdef HAVE_CYRUS_SASL
1771 ldap_pvt_sasl_secprops_unparse( &sasl_secprops, bv );
1775 #ifdef HAVE_CYRUS_SASL
1777 slap_sasl_setpass( Operation *op, SlapReply *rs )
1779 struct berval id = BER_BVNULL; /* needs to come from connection */
1780 struct berval new = BER_BVNULL;
1781 struct berval old = BER_BVNULL;
1783 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1785 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1786 (SASL_CONST void **)(char *)&id.bv_val );
1788 if( rs->sr_err != SASL_OK ) {
1789 rs->sr_text = "unable to retrieve SASL username";
1790 rs->sr_err = LDAP_OTHER;
1794 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1795 id.bv_val ? id.bv_val : "", 0, 0 );
1797 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1798 NULL, &old, &new, &rs->sr_text );
1800 if( rs->sr_err != LDAP_SUCCESS ) {
1804 if( new.bv_len == 0 ) {
1805 slap_passwd_generate(&new);
1807 if( new.bv_len == 0 ) {
1808 rs->sr_text = "password generation failed.";
1809 rs->sr_err = LDAP_OTHER;
1813 rs->sr_rspdata = slap_passwd_return( &new );
1816 #if SASL_VERSION_MAJOR < 2
1817 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1818 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1820 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1821 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1822 if( rs->sr_err != SASL_OK ) {
1823 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1826 switch(rs->sr_err) {
1828 rs->sr_err = LDAP_SUCCESS;
1838 rs->sr_err = LDAP_OTHER;
1844 #endif /* HAVE_CYRUS_SASL */
1846 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1847 * string returned in *dn is in its own allocated memory, and must be free'd
1848 * by the calling process. -Mark Adamson, Carnegie Mellon
1850 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1851 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1858 int slap_sasl_getdn( Connection *conn, Operation *op, struct berval *id,
1859 char *user_realm, struct berval *dn, int flags )
1861 int rc, is_dn = SET_NONE, do_norm = 1;
1862 struct berval dn2, *mech;
1864 assert( conn != NULL );
1865 assert( id != NULL );
1867 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: conn %lu id=%s [len=%lu]\n",
1869 BER_BVISNULL( id ) ? "NULL" : ( BER_BVISEMPTY( id ) ? "<empty>" : id->bv_val ),
1870 BER_BVISNULL( id ) ? 0 : ( BER_BVISEMPTY( id ) ? 0 :
1871 (unsigned long) id->bv_len ) );
1874 op = conn->c_sasl_bindop;
1876 assert( op != NULL );
1880 if ( !BER_BVISNULL( id ) ) {
1881 /* Blatantly anonymous ID */
1882 static struct berval bv_anonymous = BER_BVC( "anonymous" );
1884 if ( ber_bvstrcasecmp( id, &bv_anonymous ) == 0 ) {
1885 return( LDAP_SUCCESS );
1889 /* FIXME: if empty, should we stop? */
1890 BER_BVSTR( id, "" );
1893 if ( !BER_BVISEMPTY( &conn->c_sasl_bind_mech ) ) {
1894 mech = &conn->c_sasl_bind_mech;
1896 mech = &conn->c_authmech;
1899 /* An authcID needs to be converted to authzID form. Set the
1900 * values directly into *dn; they will be normalized later. (and
1901 * normalizing always makes a new copy.) An ID from a TLS certificate
1902 * is already normalized, so copy it and skip normalization.
1904 if( flags & SLAP_GETDN_AUTHCID ) {
1905 if( bvmatch( mech, &ext_bv )) {
1906 /* EXTERNAL DNs are already normalized */
1907 assert( !BER_BVISNULL( id ) );
1911 ber_dupbv_x( dn, id, op->o_tmpmemctx );
1914 /* convert to u:<username> form */
1920 if( is_dn == SET_NONE ) {
1921 if( !strncasecmp( id->bv_val, "u:", STRLENOF( "u:" ) ) ) {
1923 dn->bv_val = id->bv_val + STRLENOF( "u:" );
1924 dn->bv_len = id->bv_len - STRLENOF( "u:" );
1926 } else if ( !strncasecmp( id->bv_val, "dn:", STRLENOF( "dn:" ) ) ) {
1928 dn->bv_val = id->bv_val + STRLENOF( "dn:" );
1929 dn->bv_len = id->bv_len - STRLENOF( "dn:" );
1933 /* No other possibilities from here */
1934 if( is_dn == SET_NONE ) {
1936 return( LDAP_INAPPROPRIATE_AUTH );
1939 /* Username strings */
1940 if( is_dn == SET_U ) {
1941 /* ITS#3419: values may need escape */
1943 LDAPAVA *RDNs[ 4 ][ 2 ];
1948 DN[ irdn ] = RDNs[ irdn ];
1949 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1950 AVAs[ irdn ].la_attr = slap_schema.si_ad_uid->ad_cname;
1951 AVAs[ irdn ].la_value = *dn;
1952 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1953 AVAs[ irdn ].la_private = NULL;
1954 RDNs[ irdn ][ 1 ] = NULL;
1956 if ( user_realm && *user_realm ) {
1958 DN[ irdn ] = RDNs[ irdn ];
1959 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1960 AVAs[ irdn ].la_attr = slap_schema.si_ad_cn->ad_cname;
1961 ber_str2bv( user_realm, 0, 0, &AVAs[ irdn ].la_value );
1962 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1963 AVAs[ irdn ].la_private = NULL;
1964 RDNs[ irdn ][ 1 ] = NULL;
1967 if ( !BER_BVISNULL( mech ) ) {
1969 DN[ irdn ] = RDNs[ irdn ];
1970 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1971 AVAs[ irdn ].la_attr = slap_schema.si_ad_cn->ad_cname;
1972 AVAs[ irdn ].la_value = *mech;
1973 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1974 AVAs[ irdn ].la_private = NULL;
1975 RDNs[ irdn ][ 1 ] = NULL;
1979 DN[ irdn ] = RDNs[ irdn ];
1980 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1981 AVAs[ irdn ].la_attr = slap_schema.si_ad_cn->ad_cname;
1982 BER_BVSTR( &AVAs[ irdn ].la_value, "auth" );
1983 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1984 AVAs[ irdn ].la_private = NULL;
1985 RDNs[ irdn ][ 1 ] = NULL;
1990 rc = ldap_dn2bv_x( DN, dn, LDAP_DN_FORMAT_LDAPV3,
1992 if ( rc != LDAP_SUCCESS ) {
1997 Debug( LDAP_DEBUG_TRACE,
1998 "slap_sasl_getdn: u:id converted to %s\n",
2003 /* Dup the DN in any case, so we don't risk
2004 * leaks or dangling pointers later,
2005 * and the DN value is '\0' terminated */
2006 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
2007 dn->bv_val = dn2.bv_val;
2010 /* All strings are in DN form now. Normalize if needed. */
2012 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
2014 /* User DNs were constructed above and must be freed now */
2015 slap_sl_free( dn->bv_val, op->o_tmpmemctx );
2017 if ( rc != LDAP_SUCCESS ) {
2024 /* Run thru regexp */
2025 slap_sasl2dn( op, dn, &dn2, flags );
2026 if( !BER_BVISNULL( &dn2 ) ) {
2027 slap_sl_free( dn->bv_val, op->o_tmpmemctx );
2029 Debug( LDAP_DEBUG_TRACE,
2030 "slap_sasl_getdn: dn:id converted to %s\n",
2034 return( LDAP_SUCCESS );