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 conn->c_sasl_dn.bv_len = 0;
614 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
615 rc = strcmp( in, conn->c_sasl_dn.bv_val );
616 conn->c_sasl_dn.bv_val = NULL;
617 /* They were equal, no work needed */
618 if ( !rc ) goto done;
621 bvin.bv_val = (char *)in;
623 rc = slap_sasl_getdn( conn, NULL, &bvin, (char *)user_realm, &dn,
624 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
625 if ( rc != LDAP_SUCCESS ) {
626 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
630 names[0] = slap_propnames[which];
633 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
635 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
636 conn ? conn->c_connid : -1, names[0]+1,
637 dn.bv_val ? dn.bv_val : "<EMPTY>" );
640 AC_MEMCPY( out, in, inlen );
652 char *requested_user,
656 const char *def_realm,
658 struct propctx *props)
660 Connection *conn = (Connection *)context;
662 * (SLAP_SASL_PROP_COUNT - 1) because we skip "conn",
663 * + 1 for NULL termination?
665 struct propval auxvals[ SLAP_SASL_PROP_COUNT ] = { { 0 } };
666 struct berval authcDN, authzDN = BER_BVNULL;
669 /* Simple Binds don't support proxy authorization, ignore it */
670 if ( !conn->c_sasl_bindop ||
671 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) return SASL_OK;
673 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
674 "authcid=\"%s\" authzid=\"%s\"\n",
675 conn ? conn->c_connid : -1, auth_identity, requested_user );
676 if ( conn->c_sasl_dn.bv_val ) {
677 ch_free( conn->c_sasl_dn.bv_val );
678 BER_BVZERO( &conn->c_sasl_dn );
681 /* Skip SLAP_SASL_PROP_CONN */
682 prop_getnames( props, slap_propnames+1, auxvals );
684 /* Should not happen */
685 if ( !auxvals[0].values ) {
686 sasl_seterror( sconn, 0, "invalid authcid" );
690 AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
691 conn->c_sasl_dn = authcDN;
693 /* Nothing to do if no authzID was given */
694 if ( !auxvals[1].name || !auxvals[1].values ) {
698 AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
700 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
701 if ( rc != LDAP_SUCCESS ) {
702 Debug( LDAP_DEBUG_TRACE, "SASL Proxy Authorize [conn=%ld]: "
703 "proxy authorization disallowed (%d)\n",
704 (long) (conn ? conn->c_connid : -1), rc, 0 );
706 sasl_seterror( sconn, 0, "not authorized" );
707 ch_free( authzDN.bv_val );
711 /* FIXME: we need yet another dup because slap_sasl_getdn()
712 * is using the bind operation slab */
713 if ( conn->c_sasl_bindop ) {
714 ber_dupbv( &conn->c_sasl_authz_dn, &authzDN );
715 slap_sl_free( authzDN.bv_val,
716 conn->c_sasl_bindop->o_tmpmemctx );
719 conn->c_sasl_authz_dn = authzDN;
723 if (conn->c_sasl_bindop) {
724 Statslog( LDAP_DEBUG_STATS,
725 "conn=%lu op=%lu BIND authcid=\"%s\" authzid=\"%s\"\n",
726 conn->c_connid, conn->c_sasl_bindop->o_opid,
727 auth_identity, requested_user, 0);
730 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
731 " proxy authorization allowed authzDN=\"%s\"\n",
732 (long) (conn ? conn->c_connid : -1),
733 authzDN.bv_val ? authzDN.bv_val : "", 0 );
745 struct berval authcDN, authzDN = BER_BVNULL;
747 Connection *conn = context;
749 struct berval bvauthcid, bvauthzid;
752 if ( conn->c_sasl_dn.bv_val ) {
753 ch_free( conn->c_sasl_dn.bv_val );
754 BER_BVZERO( &conn->c_sasl_dn );
757 Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
758 "authcid=\"%s\" authzid=\"%s\"\n",
759 (long) (conn ? conn->c_connid : -1),
760 authcid ? authcid : "<empty>",
761 authzid ? authzid : "<empty>" );
763 /* Figure out how much data we have for the dn */
764 rc = sasl_getprop( conn->c_sasl_authctx, SASL_REALM, (void **)&realm );
765 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
766 Debug(LDAP_DEBUG_TRACE,
767 "authorize: getprop(REALM) failed!\n", 0,0,0);
768 *errstr = "Could not extract realm";
772 /* Convert the identities to DN's. If no authzid was given, client will
773 be bound as the DN matching their username */
774 bvauthcid.bv_val = authcid;
775 bvauthcid.bv_len = authcid ? strlen( authcid ) : 0;
776 rc = slap_sasl_getdn( conn, NULL, &bvauthcid, realm,
777 &authcDN, SLAP_GETDN_AUTHCID );
778 if( rc != LDAP_SUCCESS ) {
779 *errstr = ldap_err2string( rc );
782 conn->c_sasl_dn = authcDN;
783 if( ( authzid == NULL ) || !strcmp( authcid, authzid ) ) {
784 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
785 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
790 bvauthzid.bv_val = authzid;
791 bvauthzid.bv_len = authzid ? strlen( authzid ) : 0;
792 rc = slap_sasl_getdn( conn, NULL, &bvauthzid, realm,
793 &authzDN, SLAP_GETDN_AUTHZID );
794 if( rc != LDAP_SUCCESS ) {
795 *errstr = ldap_err2string( rc );
799 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
801 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
802 "proxy authorization disallowed (%d)\n",
803 (long) (conn ? conn->c_connid : -1), rc, 0 );
805 *errstr = "not authorized";
806 ch_free( authzDN.bv_val );
810 /* FIXME: we need yet another dup because slap_sasl_getdn()
811 * is using the bind operation slab */
812 if ( conn->c_sasl_bindop ) {
813 ber_dupbv( &conn->c_sasl_authz_dn, &authzDN );
814 slap_sl_free( authzDN.bv_val,
815 conn->c_sasl_bindop->o_tmpmemctx );
818 conn->c_sasl_authz_dn = authzDN;
822 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
823 " authorization allowed authzDN=\"%s\"\n",
824 (long) (conn ? conn->c_connid : -1),
825 authzDN.bv_val ? authzDN.bv_val : "", 0 );
827 if ( conn->c_sasl_bindop ) {
828 Statslog( LDAP_DEBUG_STATS,
829 "conn=%lu op=%lu BIND authcid=\"%s\" authzid=\"%s\"\n",
830 conn->c_connid, conn->c_sasl_bindop->o_opid,
831 authcid, authzid ? authzid : "", 0);
837 #endif /* SASL_VERSION_MAJOR >= 2 */
840 slap_sasl_err2ldap( int saslerr )
844 /* map SASL errors to LDAP resultCode returned by:
846 * SASL_OK, SASL_NOMEM
848 * SASL_OK, SASL_CONTINUE, SASL_TRANS, SASL_BADPARAM, SASL_BADPROT,
850 * sasl_server_start()
853 * SASL_OK, SASL_BADPARAM
861 rc = LDAP_SASL_BIND_IN_PROGRESS;
868 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
874 rc = LDAP_INVALID_CREDENTIALS;
877 rc = LDAP_INSUFFICIENT_ACCESS;
881 rc = LDAP_INAPPROPRIATE_AUTH;
885 rc = LDAP_UNAVAILABLE;
888 rc = LDAP_UNWILLING_TO_PERFORM;
900 static struct berval sasl_pwscheme = BER_BVC("{SASL}");
903 const struct berval *sc,
904 const struct berval * passwd,
905 const struct berval * cred,
910 void *ctx, *sconn = NULL;
912 for( i=0; i<cred->bv_len; i++) {
913 if(cred->bv_val[i] == '\0') {
914 return LUTIL_PASSWD_ERR; /* NUL character in password */
918 if( cred->bv_val[i] != '\0' ) {
919 return LUTIL_PASSWD_ERR; /* cred must behave like a string */
922 for( i=0; i<passwd->bv_len; i++) {
923 if(passwd->bv_val[i] == '\0') {
924 return LUTIL_PASSWD_ERR; /* NUL character in password */
928 if( passwd->bv_val[i] != '\0' ) {
929 return LUTIL_PASSWD_ERR; /* passwd must behave like a string */
932 rtn = LUTIL_PASSWD_ERR;
934 ctx = ldap_pvt_thread_pool_context();
935 ldap_pvt_thread_pool_getkey( ctx, slap_sasl_bind, &sconn, NULL );
937 if( sconn != NULL ) {
939 # if SASL_VERSION_MAJOR < 2
940 sc = sasl_checkpass( sconn,
941 passwd->bv_val, passwd->bv_len,
942 cred->bv_val, cred->bv_len,
945 sc = sasl_checkpass( sconn,
946 passwd->bv_val, passwd->bv_len,
947 cred->bv_val, cred->bv_len );
949 rtn = ( sc != SASL_OK ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
954 #endif /* SLAPD_SPASSWD */
956 #endif /* HAVE_CYRUS_SASL */
958 #ifdef ENABLE_REWRITE
960 typedef struct slapd_map_data {
962 struct berval filter;
963 AttributeName attrs[2];
968 slapd_rw_config( const char *fname, int lineno, int argc, char **argv )
970 slapd_map_data *ret = NULL;
971 LDAPURLDesc *lud = NULL;
973 AttributeDescription *ad = NULL;
975 struct berval dn, ndn;
978 Debug( LDAP_DEBUG_ANY,
979 "[%s:%d] slapd map needs URI\n",
985 if ( strncasecmp( uri, "uri=", STRLENOF( "uri=" ) ) == 0 ) {
986 uri += STRLENOF( "uri=" );
989 if ( ldap_url_parse( uri, &lud ) != LDAP_URL_SUCCESS ) {
990 Debug( LDAP_DEBUG_ANY,
991 "[%s:%d] illegal URI '%s'\n",
992 fname, lineno, uri );
996 if ( strcasecmp( lud->lud_scheme, "ldap" )) {
997 Debug( LDAP_DEBUG_ANY,
998 "[%s:%d] illegal URI scheme '%s'\n",
999 fname, lineno, lud->lud_scheme );
1003 if (( lud->lud_host && lud->lud_host[0] ) || lud->lud_exts
1005 Debug( LDAP_DEBUG_ANY,
1006 "[%s:%d] illegal URI '%s'\n",
1007 fname, lineno, uri );
1011 if ( lud->lud_attrs ) {
1012 if ( lud->lud_attrs[1] ) {
1013 Debug( LDAP_DEBUG_ANY,
1014 "[%s:%d] only one attribute allowed in URI\n",
1018 if ( strcasecmp( lud->lud_attrs[0], "dn" ) &&
1019 strcasecmp( lud->lud_attrs[0], "entryDN" )) {
1021 rc = slap_str2ad( lud->lud_attrs[0], &ad, &text );
1026 ber_str2bv( lud->lud_dn, 0, 0, &dn );
1027 if ( dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL ))
1030 if ( lud->lud_filter ) {
1031 flen = strlen( lud->lud_filter ) + 1;
1033 ret = ch_malloc( sizeof( slapd_map_data ) + flen );
1036 ret->filter.bv_val = (char *)(ret+1);
1037 ret->filter.bv_len = flen - 1;
1038 strcpy( ret->filter.bv_val, lud->lud_filter );
1040 BER_BVZERO( &ret->filter );
1042 ret->scope = lud->lud_scope;
1044 ret->attrs[0].an_name = ad->ad_cname;
1046 BER_BVZERO( &ret->attrs[0].an_name );
1048 ret->attrs[0].an_desc = ad;
1049 BER_BVZERO( &ret->attrs[1].an_name );
1051 ldap_free_urldesc( lud );
1055 struct slapd_rw_info {
1056 slapd_map_data *si_data;
1057 struct berval si_val;
1061 slapd_rw_cb( Operation *op, SlapReply *rs )
1063 if ( rs->sr_type == REP_SEARCH ) {
1064 struct slapd_rw_info *si = op->o_callback->sc_private;
1066 if ( si->si_data->attrs[0].an_desc ) {
1069 a = attr_find( rs->sr_entry->e_attrs,
1070 si->si_data->attrs[0].an_desc );
1072 ber_dupbv( &si->si_val, a->a_vals );
1075 ber_dupbv( &si->si_val, &rs->sr_entry->e_name );
1078 return LDAP_SUCCESS;
1082 slapd_rw_apply( void *private, const char *filter, struct berval *val )
1084 slapd_map_data *sl = private;
1085 slap_callback cb = { NULL };
1086 Connection conn = {0};
1087 OperationBuffer opbuf;
1090 SlapReply rs = {REP_RESULT};
1091 struct slapd_rw_info si;
1095 thrctx = ldap_pvt_thread_pool_context();
1096 op = (Operation *)&opbuf;
1097 connection_fake_init2( &conn, op, thrctx, 0 );
1099 op->o_tag = LDAP_REQ_SEARCH;
1100 op->o_req_dn = op->o_req_ndn = sl->base;
1101 op->o_bd = select_backend( &op->o_req_ndn, 0, 1 );
1106 BER_BVZERO( &si.si_val );
1107 op->ors_scope = sl->scope;
1108 op->ors_deref = LDAP_DEREF_NEVER;
1110 op->ors_tlimit = SLAP_NO_LIMIT;
1111 if ( sl->attrs[0].an_desc ) {
1112 op->ors_attrs = sl->attrs;
1114 op->ors_attrs = slap_anlist_no_attrs;
1117 rc = strlen( filter );
1121 rc += sl->filter.bv_len;
1122 ptr = op->ors_filterstr.bv_val = op->o_tmpalloc( rc + 1, op->o_tmpmemctx );
1123 if ( sl->filter.bv_len ) {
1124 ptr = lutil_strcopy( ptr, sl->filter.bv_val );
1129 strcpy( ptr, filter );
1131 op->ors_filter = str2filter_x( op, op->ors_filterstr.bv_val );
1132 if ( !op->ors_filter ) {
1133 op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1137 op->ors_attrsonly = 0;
1138 op->o_dn = op->o_bd->be_rootdn;
1139 op->o_ndn = op->o_bd->be_rootndn;
1140 op->o_do_not_cache = 1;
1142 cb.sc_response = slapd_rw_cb;
1143 cb.sc_private = &si;
1144 op->o_callback = &cb;
1146 rc = op->o_bd->be_search( op, &rs );
1147 if ( rc == LDAP_SUCCESS && !BER_BVISNULL( &si.si_val )) {
1149 rc = REWRITE_SUCCESS;
1151 if ( !BER_BVISNULL( &si.si_val )) {
1152 ch_free( si.si_val.bv_val );
1156 filter_free_x( op, op->ors_filter );
1157 op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
1162 slapd_rw_destroy( void *private )
1164 slapd_map_data *md = private;
1166 assert( private != NULL );
1168 ch_free( md->base.bv_val );
1169 ch_free( md->filter.bv_val );
1175 static const rewrite_mapper slapd_mapper = {
1183 int slap_sasl_init( void )
1185 #ifdef HAVE_CYRUS_SASL
1187 static sasl_callback_t server_callbacks[] = {
1188 { SASL_CB_LOG, &slap_sasl_log, NULL },
1189 { SASL_CB_LIST_END, NULL, NULL }
1193 #ifdef ENABLE_REWRITE
1194 rewrite_mapper_register( &slapd_mapper );
1197 #ifdef HAVE_CYRUS_SASL
1198 #ifdef HAVE_SASL_VERSION
1199 /* stringify the version number, sasl.h doesn't do it for us */
1200 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1201 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1202 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1205 sasl_version( NULL, &rc );
1206 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1207 (rc & 0xffff) < SASL_VERSION_STEP)
1209 char version[sizeof("xxx.xxx.xxxxx")];
1210 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1212 Debug( LDAP_DEBUG_ANY, "slap_sasl_init: SASL library version mismatch:"
1213 " expected " SASL_VERSION_STRING ","
1214 " got %s\n", version, 0, 0 );
1219 /* SASL 2 does its own memory management internally */
1220 #if SASL_VERSION_MAJOR < 2
1229 ldap_pvt_sasl_mutex_new,
1230 ldap_pvt_sasl_mutex_lock,
1231 ldap_pvt_sasl_mutex_unlock,
1232 ldap_pvt_sasl_mutex_dispose );
1234 #if SASL_VERSION_MAJOR >= 2
1235 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1237 rc = sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1238 if( rc != SASL_OK ) {
1239 Debug( LDAP_DEBUG_ANY, "slap_sasl_init: auxprop add plugin failed\n",
1244 /* should provide callbacks for logging */
1245 /* server name should be configurable */
1246 rc = sasl_server_init( server_callbacks, "slapd" );
1248 if( rc != SASL_OK ) {
1249 Debug( LDAP_DEBUG_ANY, "slap_sasl_init: server init failed\n",
1251 #if SASL_VERSION_MAJOR < 2
1252 /* A no-op used to make sure we linked with Cyrus 1.5 */
1253 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1259 #ifdef SLAPD_SPASSWD
1260 lutil_passwd_add( &sasl_pwscheme, chk_sasl, NULL );
1263 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1266 /* default security properties */
1267 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1268 sasl_secprops.max_ssf = INT_MAX;
1269 sasl_secprops.maxbufsize = 65536;
1270 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1276 int slap_sasl_destroy( void )
1278 #ifdef HAVE_CYRUS_SASL
1281 free( global_host );
1287 #if SASL_VERSION_MAJOR >= 2
1289 slap_sasl_peer2ipport( struct berval *peer )
1293 *addr = &peer->bv_val[ STRLENOF( "IP=" ) ];
1294 ber_len_t plen = peer->bv_len - STRLENOF( "IP=" );
1297 if ( addr[0] == '[' ) {
1301 ipport = ch_strdup( &addr[isv6] );
1303 /* Convert IPv6/IPv4 addresses to address;port syntax. */
1304 p = strrchr( ipport, ':' );
1308 assert( p[-1] == ']' );
1309 AC_MEMCPY( &p[-1], p, plen - ( p - ipport ) + 1 );
1312 } else if ( isv6 ) {
1315 assert( addr[plen] == ']' );
1323 int slap_sasl_open( Connection *conn, int reopen )
1325 int sc = LDAP_SUCCESS;
1326 #ifdef HAVE_CYRUS_SASL
1329 sasl_conn_t *ctx = NULL;
1330 sasl_callback_t *session_callbacks;
1332 #if SASL_VERSION_MAJOR >= 2
1333 char *ipremoteport = NULL, *iplocalport = NULL;
1336 assert( conn->c_sasl_authctx == NULL );
1339 assert( conn->c_sasl_extra == NULL );
1342 #if SASL_VERSION_MAJOR >= 2
1343 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1345 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1347 if( session_callbacks == NULL ) {
1348 Debug( LDAP_DEBUG_ANY,
1349 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1352 conn->c_sasl_extra = session_callbacks;
1354 session_callbacks[cb=0].id = SASL_CB_LOG;
1355 session_callbacks[cb].proc = &slap_sasl_log;
1356 session_callbacks[cb++].context = conn;
1358 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1359 session_callbacks[cb].proc = &slap_sasl_authorize;
1360 session_callbacks[cb++].context = conn;
1362 #if SASL_VERSION_MAJOR >= 2
1363 session_callbacks[cb].id = SASL_CB_CANON_USER;
1364 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1365 session_callbacks[cb++].context = conn;
1368 session_callbacks[cb].id = SASL_CB_LIST_END;
1369 session_callbacks[cb].proc = NULL;
1370 session_callbacks[cb++].context = NULL;
1372 session_callbacks = conn->c_sasl_extra;
1375 conn->c_sasl_layers = 0;
1377 /* create new SASL context */
1378 #if SASL_VERSION_MAJOR >= 2
1379 if ( conn->c_sock_name.bv_len != 0 &&
1380 strncmp( conn->c_sock_name.bv_val, "IP=", STRLENOF( "IP=" ) ) == 0 )
1382 iplocalport = slap_sasl_peer2ipport( &conn->c_sock_name );
1385 if ( conn->c_peer_name.bv_len != 0 &&
1386 strncmp( conn->c_peer_name.bv_val, "IP=", STRLENOF( "IP=" ) ) == 0 )
1388 ipremoteport = slap_sasl_peer2ipport( &conn->c_peer_name );
1391 sc = sasl_server_new( "ldap", global_host, global_realm,
1392 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1393 if ( iplocalport != NULL ) {
1394 ch_free( iplocalport );
1396 if ( ipremoteport != NULL ) {
1397 ch_free( ipremoteport );
1400 sc = sasl_server_new( "ldap", global_host, global_realm,
1401 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1404 if( sc != SASL_OK ) {
1405 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1411 conn->c_sasl_authctx = ctx;
1413 if( sc == SASL_OK ) {
1414 sc = sasl_setprop( ctx,
1415 SASL_SEC_PROPS, &sasl_secprops );
1417 if( sc != SASL_OK ) {
1418 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1421 slap_sasl_close( conn );
1426 sc = slap_sasl_err2ldap( sc );
1428 #elif defined(SLAP_BUILTIN_SASL)
1429 /* built-in SASL implementation */
1430 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1431 if( ctx == NULL ) return -1;
1433 ctx->sc_external_ssf = 0;
1434 BER_BVZERO( &ctx->sc_external_id );
1436 conn->c_sasl_authctx = ctx;
1442 int slap_sasl_external(
1445 struct berval *auth_id )
1447 #if SASL_VERSION_MAJOR >= 2
1449 sasl_conn_t *ctx = conn->c_sasl_authctx;
1451 if ( ctx == NULL ) {
1452 return LDAP_UNAVAILABLE;
1455 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1457 if ( sc != SASL_OK ) {
1461 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1462 auth_id ? auth_id->bv_val : NULL );
1464 if ( sc != SASL_OK ) {
1468 #elif defined(HAVE_CYRUS_SASL)
1470 sasl_conn_t *ctx = conn->c_sasl_authctx;
1471 sasl_external_properties_t extprops;
1473 if ( ctx == NULL ) {
1474 return LDAP_UNAVAILABLE;
1477 memset( &extprops, '\0', sizeof(extprops) );
1479 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1481 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1482 (void *) &extprops );
1484 if ( sc != SASL_OK ) {
1487 #elif defined(SLAP_BUILTIN_SASL)
1488 /* built-in SASL implementation */
1489 SASL_CTX *ctx = conn->c_sasl_authctx;
1490 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1492 ctx->sc_external_ssf = ssf;
1494 ctx->sc_external_id = *auth_id;
1495 BER_BVZERO( auth_id );
1497 BER_BVZERO( &ctx->sc_external_id );
1501 return LDAP_SUCCESS;
1504 int slap_sasl_reset( Connection *conn )
1506 return LDAP_SUCCESS;
1509 char ** slap_sasl_mechs( Connection *conn )
1511 char **mechs = NULL;
1513 #ifdef HAVE_CYRUS_SASL
1514 sasl_conn_t *ctx = conn->c_sasl_authctx;
1516 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1520 SASL_CONST char *mechstr;
1522 sc = sasl_listmech( ctx,
1523 NULL, NULL, ",", NULL,
1524 &mechstr, NULL, NULL );
1526 if( sc != SASL_OK ) {
1527 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1533 mechs = ldap_str2charray( mechstr, "," );
1535 #if SASL_VERSION_MAJOR < 2
1539 #elif defined(SLAP_BUILTIN_SASL)
1540 /* builtin SASL implementation */
1541 SASL_CTX *ctx = conn->c_sasl_authctx;
1542 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1543 /* should check ssf */
1544 mechs = ldap_str2charray( "EXTERNAL", "," );
1551 int slap_sasl_close( Connection *conn )
1553 #ifdef HAVE_CYRUS_SASL
1554 sasl_conn_t *ctx = conn->c_sasl_authctx;
1557 sasl_dispose( &ctx );
1559 if ( conn->c_sasl_sockctx &&
1560 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1562 ctx = conn->c_sasl_sockctx;
1563 sasl_dispose( &ctx );
1566 conn->c_sasl_authctx = NULL;
1567 conn->c_sasl_sockctx = NULL;
1568 conn->c_sasl_done = 0;
1570 free( conn->c_sasl_extra );
1571 conn->c_sasl_extra = NULL;
1573 #elif defined(SLAP_BUILTIN_SASL)
1574 SASL_CTX *ctx = conn->c_sasl_authctx;
1576 if( ctx->sc_external_id.bv_val ) {
1577 free( ctx->sc_external_id.bv_val );
1578 BER_BVZERO( &ctx->sc_external_id );
1581 conn->c_sasl_authctx = NULL;
1585 return LDAP_SUCCESS;
1588 int slap_sasl_bind( Operation *op, SlapReply *rs )
1590 #ifdef HAVE_CYRUS_SASL
1591 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1592 struct berval response;
1593 unsigned reslen = 0;
1596 Debug(LDAP_DEBUG_ARGS,
1597 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1598 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1599 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1600 op->o_conn->c_sasl_bind_mech.bv_val,
1601 op->orb_cred.bv_len );
1604 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1605 "SASL unavailable on this session" );
1609 #if SASL_VERSION_MAJOR >= 2
1610 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1611 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1612 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1613 sasl_server_step( ctx, cred, clen, resp, rlen )
1615 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1616 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1617 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1618 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1621 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1622 /* If we already authenticated once, must use a new context */
1623 if ( op->o_conn->c_sasl_done ) {
1625 const char *authid = NULL;
1626 #if SASL_VERSION_MAJOR >= 2
1627 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1628 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1629 if ( authid ) authid = ch_strdup( authid );
1631 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1632 sasl_dispose( &ctx );
1634 op->o_conn->c_sasl_authctx = NULL;
1636 slap_sasl_open( op->o_conn, 1 );
1637 ctx = op->o_conn->c_sasl_authctx;
1638 #if SASL_VERSION_MAJOR >= 2
1640 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1641 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1642 ch_free( (char *)authid );
1647 op->o_conn->c_sasl_bind_mech.bv_val,
1648 op->orb_cred.bv_val, op->orb_cred.bv_len,
1649 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1653 op->orb_cred.bv_val, op->orb_cred.bv_len,
1654 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1657 response.bv_len = reslen;
1659 if ( sc == SASL_OK ) {
1660 sasl_ssf_t *ssf = NULL;
1662 op->orb_edn = op->o_conn->c_sasl_dn;
1663 BER_BVZERO( &op->o_conn->c_sasl_dn );
1664 op->o_conn->c_sasl_done = 1;
1666 rs->sr_err = LDAP_SUCCESS;
1668 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1669 op->orb_ssf = ssf ? *ssf : 0;
1673 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1674 op->o_conn->c_sasl_layers++;
1676 /* If there's an old layer, set sockctx to NULL to
1677 * tell connection_read() to wait for us to finish.
1678 * Otherwise there is a race condition: we have to
1679 * send the Bind response using the old security
1680 * context and then remove it before reading any
1683 if ( op->o_conn->c_sasl_sockctx ) {
1684 ctx = op->o_conn->c_sasl_sockctx;
1685 op->o_conn->c_sasl_sockctx = NULL;
1687 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1689 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1692 /* Must send response using old security layer */
1693 if (response.bv_len) rs->sr_sasldata = &response;
1694 send_ldap_sasl( op, rs );
1696 /* Now dispose of the old security layer.
1699 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1700 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1701 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1702 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1703 sasl_dispose( &ctx );
1705 } else if ( sc == SASL_CONTINUE ) {
1706 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1707 #if SASL_VERSION_MAJOR >= 2
1708 rs->sr_text = sasl_errdetail( ctx );
1710 rs->sr_sasldata = &response;
1711 send_ldap_sasl( op, rs );
1714 if ( op->o_conn->c_sasl_dn.bv_len )
1715 ch_free( op->o_conn->c_sasl_dn.bv_val );
1716 BER_BVZERO( &op->o_conn->c_sasl_dn );
1717 #if SASL_VERSION_MAJOR >= 2
1718 rs->sr_text = sasl_errdetail( ctx );
1720 rs->sr_err = slap_sasl_err2ldap( sc ),
1721 send_ldap_result( op, rs );
1724 #if SASL_VERSION_MAJOR < 2
1725 if( response.bv_len ) ch_free( response.bv_val );
1728 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1730 #elif defined(SLAP_BUILTIN_SASL)
1731 /* built-in SASL implementation */
1732 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1734 if ( ctx == NULL ) {
1735 send_ldap_error( op, rs, LDAP_OTHER,
1736 "Internal SASL Error" );
1738 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1741 if( op->orb_cred.bv_len ) {
1742 rs->sr_text = "proxy authorization not support";
1743 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1744 send_ldap_result( op, rs );
1747 op->orb_edn = ctx->sc_external_id;
1748 rs->sr_err = LDAP_SUCCESS;
1749 rs->sr_sasldata = NULL;
1750 send_ldap_sasl( op, rs );
1754 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1755 "requested SASL mechanism not supported" );
1758 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1759 "SASL not supported" );
1765 char* slap_sasl_secprops( const char *in )
1767 #ifdef HAVE_CYRUS_SASL
1768 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1770 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1772 return "SASL not supported";
1776 void slap_sasl_secprops_unparse( struct berval *bv )
1778 #ifdef HAVE_CYRUS_SASL
1779 ldap_pvt_sasl_secprops_unparse( &sasl_secprops, bv );
1783 #ifdef HAVE_CYRUS_SASL
1785 slap_sasl_setpass( Operation *op, SlapReply *rs )
1787 struct berval id = BER_BVNULL; /* needs to come from connection */
1788 struct berval new = BER_BVNULL;
1789 struct berval old = BER_BVNULL;
1791 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1793 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1794 (SASL_CONST void **)(char *)&id.bv_val );
1796 if( rs->sr_err != SASL_OK ) {
1797 rs->sr_text = "unable to retrieve SASL username";
1798 rs->sr_err = LDAP_OTHER;
1802 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1803 id.bv_val ? id.bv_val : "", 0, 0 );
1805 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1806 NULL, &old, &new, &rs->sr_text );
1808 if( rs->sr_err != LDAP_SUCCESS ) {
1812 if( new.bv_len == 0 ) {
1813 slap_passwd_generate(&new);
1815 if( new.bv_len == 0 ) {
1816 rs->sr_text = "password generation failed.";
1817 rs->sr_err = LDAP_OTHER;
1821 rs->sr_rspdata = slap_passwd_return( &new );
1824 #if SASL_VERSION_MAJOR < 2
1825 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1826 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1828 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1829 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1830 if( rs->sr_err != SASL_OK ) {
1831 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1834 switch(rs->sr_err) {
1836 rs->sr_err = LDAP_SUCCESS;
1846 rs->sr_err = LDAP_OTHER;
1852 #endif /* HAVE_CYRUS_SASL */
1854 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1855 * string returned in *dn is in its own allocated memory, and must be free'd
1856 * by the calling process. -Mark Adamson, Carnegie Mellon
1858 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1859 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1866 int slap_sasl_getdn( Connection *conn, Operation *op, struct berval *id,
1867 char *user_realm, struct berval *dn, int flags )
1869 int rc, is_dn = SET_NONE, do_norm = 1;
1870 struct berval dn2, *mech;
1872 assert( conn != NULL );
1873 assert( id != NULL );
1875 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: conn %lu id=%s [len=%lu]\n",
1877 BER_BVISNULL( id ) ? "NULL" : ( BER_BVISEMPTY( id ) ? "<empty>" : id->bv_val ),
1878 BER_BVISNULL( id ) ? 0 : ( BER_BVISEMPTY( id ) ? 0 :
1879 (unsigned long) id->bv_len ) );
1882 op = conn->c_sasl_bindop;
1884 assert( op != NULL );
1888 if ( !BER_BVISNULL( id ) ) {
1889 /* Blatantly anonymous ID */
1890 static struct berval bv_anonymous = BER_BVC( "anonymous" );
1892 if ( ber_bvstrcasecmp( id, &bv_anonymous ) == 0 ) {
1893 return( LDAP_SUCCESS );
1897 /* FIXME: if empty, should we stop? */
1898 BER_BVSTR( id, "" );
1901 if ( !BER_BVISEMPTY( &conn->c_sasl_bind_mech ) ) {
1902 mech = &conn->c_sasl_bind_mech;
1904 mech = &conn->c_authmech;
1907 /* An authcID needs to be converted to authzID form. Set the
1908 * values directly into *dn; they will be normalized later. (and
1909 * normalizing always makes a new copy.) An ID from a TLS certificate
1910 * is already normalized, so copy it and skip normalization.
1912 if( flags & SLAP_GETDN_AUTHCID ) {
1913 if( bvmatch( mech, &ext_bv )) {
1914 /* EXTERNAL DNs are already normalized */
1915 assert( !BER_BVISNULL( id ) );
1919 ber_dupbv_x( dn, id, op->o_tmpmemctx );
1922 /* convert to u:<username> form */
1928 if( is_dn == SET_NONE ) {
1929 if( !strncasecmp( id->bv_val, "u:", STRLENOF( "u:" ) ) ) {
1931 dn->bv_val = id->bv_val + STRLENOF( "u:" );
1932 dn->bv_len = id->bv_len - STRLENOF( "u:" );
1934 } else if ( !strncasecmp( id->bv_val, "dn:", STRLENOF( "dn:" ) ) ) {
1936 dn->bv_val = id->bv_val + STRLENOF( "dn:" );
1937 dn->bv_len = id->bv_len - STRLENOF( "dn:" );
1941 /* No other possibilities from here */
1942 if( is_dn == SET_NONE ) {
1944 return( LDAP_INAPPROPRIATE_AUTH );
1947 /* Username strings */
1948 if( is_dn == SET_U ) {
1949 /* ITS#3419: values may need escape */
1951 LDAPAVA *RDNs[ 4 ][ 2 ];
1956 DN[ irdn ] = RDNs[ irdn ];
1957 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1958 AVAs[ irdn ].la_attr = slap_schema.si_ad_uid->ad_cname;
1959 AVAs[ irdn ].la_value = *dn;
1960 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1961 AVAs[ irdn ].la_private = NULL;
1962 RDNs[ irdn ][ 1 ] = NULL;
1964 if ( user_realm && *user_realm ) {
1966 DN[ irdn ] = RDNs[ irdn ];
1967 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1968 AVAs[ irdn ].la_attr = slap_schema.si_ad_cn->ad_cname;
1969 ber_str2bv( user_realm, 0, 0, &AVAs[ irdn ].la_value );
1970 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1971 AVAs[ irdn ].la_private = NULL;
1972 RDNs[ irdn ][ 1 ] = NULL;
1975 if ( !BER_BVISNULL( mech ) ) {
1977 DN[ irdn ] = RDNs[ irdn ];
1978 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1979 AVAs[ irdn ].la_attr = slap_schema.si_ad_cn->ad_cname;
1980 AVAs[ irdn ].la_value = *mech;
1981 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1982 AVAs[ irdn ].la_private = NULL;
1983 RDNs[ irdn ][ 1 ] = NULL;
1987 DN[ irdn ] = RDNs[ irdn ];
1988 RDNs[ irdn ][ 0 ] = &AVAs[ irdn ];
1989 AVAs[ irdn ].la_attr = slap_schema.si_ad_cn->ad_cname;
1990 BER_BVSTR( &AVAs[ irdn ].la_value, "auth" );
1991 AVAs[ irdn ].la_flags = LDAP_AVA_NULL;
1992 AVAs[ irdn ].la_private = NULL;
1993 RDNs[ irdn ][ 1 ] = NULL;
1998 rc = ldap_dn2bv_x( DN, dn, LDAP_DN_FORMAT_LDAPV3,
2000 if ( rc != LDAP_SUCCESS ) {
2005 Debug( LDAP_DEBUG_TRACE,
2006 "slap_sasl_getdn: u:id converted to %s\n",
2011 /* Dup the DN in any case, so we don't risk
2012 * leaks or dangling pointers later,
2013 * and the DN value is '\0' terminated */
2014 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
2015 dn->bv_val = dn2.bv_val;
2018 /* All strings are in DN form now. Normalize if needed. */
2020 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
2022 /* User DNs were constructed above and must be freed now */
2023 slap_sl_free( dn->bv_val, op->o_tmpmemctx );
2025 if ( rc != LDAP_SUCCESS ) {
2032 /* Run thru regexp */
2033 slap_sasl2dn( op, dn, &dn2, flags );
2034 if( !BER_BVISNULL( &dn2 ) ) {
2035 slap_sl_free( dn->bv_val, op->o_tmpmemctx );
2037 Debug( LDAP_DEBUG_TRACE,
2038 "slap_sasl_getdn: dn:id converted to %s\n",
2042 return( LDAP_SUCCESS );