2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2004 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>.
19 #include <ac/stdlib.h>
20 #include <ac/string.h>
29 #ifdef HAVE_CYRUS_SASL
30 # ifdef HAVE_SASL_SASL_H
31 # include <sasl/sasl.h>
36 # if SASL_VERSION_MAJOR >= 2
37 # ifdef HAVE_SASL_SASL_H
38 # include <sasl/saslplug.h>
40 # include <saslplug.h>
42 # define SASL_CONST const
47 #define SASL_VERSION_FULL ((SASL_VERSION_MAJOR << 16) |\
48 (SASL_VERSION_MINOR << 8) | SASL_VERSION_STEP)
50 static sasl_security_properties_t sasl_secprops;
51 #elif defined( SLAP_BUILTIN_SASL )
53 * built-in SASL implementation
54 * only supports EXTERNAL
56 typedef struct sasl_ctx {
57 slap_ssf_t sc_external_ssf;
58 struct berval sc_external_id;
67 static struct berval ext_bv = BER_BVC( "EXTERNAL" );
69 int slap_sasl_config( int cargc, char **cargv, char *line,
70 const char *fname, int lineno )
72 /* set SASL proxy authorization policy */
73 if ( strcasecmp( cargv[0], "sasl-authz-policy" ) == 0 ) {
76 LDAP_LOG( CONFIG, CRIT,
77 "%s: line %d: missing policy in"
78 " \"sasl-authz-policy <policy>\" line\n",
81 Debug( LDAP_DEBUG_ANY,
82 "%s: line %d: missing policy in"
83 " \"sasl-authz-policy <policy>\" line\n",
89 if ( slap_sasl_setpolicy( cargv[1] ) ) {
91 LDAP_LOG( CONFIG, CRIT,
92 "%s: line %d: unable "
93 "to parse value \"%s\" "
94 "in \"sasl-authz-policy "
96 fname, lineno, cargv[1] );
98 Debug( LDAP_DEBUG_ANY,
99 "%s: line %d: unable "
100 "to parse value \"%s\" "
101 "in \"sasl-authz-policy "
103 fname, lineno, cargv[1] );
108 } else if ( !strcasecmp( cargv[0], "sasl-regexp" )
109 || !strcasecmp( cargv[0], "saslregexp" ) )
114 LDAP_LOG( CONFIG, CRIT,
115 "%s: line %d: need 2 args in "
116 "\"saslregexp <match> <replace>\"\n",
119 Debug( LDAP_DEBUG_ANY,
120 "%s: line %d: need 2 args in "
121 "\"saslregexp <match> <replace>\"\n",
127 rc = slap_sasl_regexp_config( cargv[1], cargv[2] );
132 #ifdef HAVE_CYRUS_SASL
134 } else if ( strcasecmp( cargv[0], "sasl-host" ) == 0 ) {
137 LDAP_LOG( CONFIG, CRIT,
138 "%s: line %d: missing host in \"sasl-host <host>\" line\n",
141 Debug( LDAP_DEBUG_ANY,
142 "%s: line %d: missing host in \"sasl-host <host>\" line\n",
149 if ( global_host != NULL ) {
151 LDAP_LOG( CONFIG, CRIT,
152 "%s: line %d: already set sasl-host!\n",
155 Debug( LDAP_DEBUG_ANY,
156 "%s: line %d: already set sasl-host!\n",
163 global_host = ch_strdup( cargv[1] );
167 } else if ( strcasecmp( cargv[0], "sasl-realm" ) == 0 ) {
170 LDAP_LOG( CONFIG, CRIT, "%s: line %d: "
171 "missing realm in \"sasl-realm <realm>\" line.\n",
174 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
175 "missing realm in \"sasl-realm <realm>\" line.\n",
182 if ( global_realm != NULL ) {
184 LDAP_LOG( CONFIG, CRIT,
185 "%s: line %d: already set sasl-realm!\n",
188 Debug( LDAP_DEBUG_ANY,
189 "%s: line %d: already set sasl-realm!\n",
196 global_realm = ch_strdup( cargv[1] );
199 /* SASL security properties */
200 } else if ( strcasecmp( cargv[0], "sasl-secprops" ) == 0 ) {
205 LDAP_LOG( CONFIG, CRIT, "%s: line %d: "
206 "missing flags in \"sasl-secprops <properties>\" line\n",
209 Debug( LDAP_DEBUG_ANY, "%s: line %d: "
210 "missing flags in \"sasl-secprops <properties>\" line\n",
217 txt = slap_sasl_secprops( cargv[1] );
220 LDAP_LOG( CONFIG, CRIT,
221 "%s: line %d sasl-secprops: %s\n",
222 fname, lineno, txt );
224 Debug( LDAP_DEBUG_ANY,
225 "%s: line %d: sasl-secprops: %s\n",
226 fname, lineno, txt );
231 #endif /* HAVE_CYRUS_SASL */
237 #ifdef HAVE_CYRUS_SASL
245 Connection *conn = context;
249 if ( message == NULL ) {
250 return SASL_BADPARAM;
254 #if SASL_VERSION_MAJOR >= 2
256 level = LDAP_DEBUG_NONE;
260 level = LDAP_DEBUG_ANY;
264 level = LDAP_DEBUG_ANY;
268 level = LDAP_DEBUG_TRACE;
272 level = LDAP_DEBUG_TRACE;
276 level = LDAP_DEBUG_TRACE;
280 level = LDAP_DEBUG_TRACE;
284 level = LDAP_DEBUG_TRACE;
285 label = "Password Trace";
289 level = LDAP_DEBUG_ANY;
292 case SASL_LOG_WARNING:
293 level = LDAP_DEBUG_TRACE;
297 level = LDAP_DEBUG_TRACE;
302 return SASL_BADPARAM;
306 LDAP_LOG( TRANSPORT, ENTRY,
307 "SASL [conn=%ld] %s: %s\n", conn ? conn->c_connid : -1, label, message);
309 Debug( level, "SASL [conn=%ld] %s: %s\n",
310 conn ? conn->c_connid: -1,
319 #if SASL_VERSION_MAJOR >= 2
320 static const char *slap_propnames[] = {
321 "*slapConn", "*slapAuthcDN", "*slapAuthzDN", NULL };
323 static Filter generic_filter = { LDAP_FILTER_PRESENT };
324 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
329 #define PROP_COUNT 3 /* Number of properties we used */
331 typedef struct lookup_info {
333 const struct propval *list;
334 sasl_server_params_t *sparams;
337 static slap_response sasl_ap_lookup;
340 sasl_ap_lookup( Operation *op, SlapReply *rs )
343 AttributeDescription *ad;
347 slap_callback *tmp = op->o_callback;
348 lookup_info *sl = tmp->sc_private;
350 if (rs->sr_type != REP_SEARCH) return 0;
352 for( i = 0; sl->list[i].name; i++ ) {
353 const char *name = sl->list[i].name;
355 if ( name[0] == '*' ) {
356 if ( sl->flags & SASL_AUXPROP_AUTHZID ) continue;
357 /* Skip our private properties */
358 if ( !strcmp( name, slap_propnames[0] )) {
363 } else if ( !(sl->flags & SASL_AUXPROP_AUTHZID ) )
366 if ( sl->list[i].values ) {
367 if ( !(sl->flags & SASL_AUXPROP_OVERRIDE) ) continue;
370 rc = slap_str2ad( name, &ad, &text );
371 if ( rc != LDAP_SUCCESS ) {
373 LDAP_LOG( TRANSPORT, DETAIL1,
374 "slap_auxprop: str2ad(%s): %s\n", name, text, 0 );
376 Debug( LDAP_DEBUG_TRACE,
377 "slap_auxprop: str2ad(%s): %s\n", name, text, 0 );
381 a = attr_find( rs->sr_entry->e_attrs, ad );
383 if ( ! access_allowed( op, rs->sr_entry, ad, NULL, ACL_AUTH, NULL ) ) {
386 if ( sl->list[i].values && ( sl->flags & SASL_AUXPROP_OVERRIDE ) ) {
387 sl->sparams->utils->prop_erase( sl->sparams->propctx,
390 for ( bv = a->a_vals; bv->bv_val; bv++ ) {
391 sl->sparams->utils->prop_set( sl->sparams->propctx,
392 sl->list[i].name, bv->bv_val, bv->bv_len );
401 sasl_server_params_t *sparams,
408 Connection *conn = NULL;
411 sl.list = sparams->utils->prop_get( sparams->propctx );
412 sl.sparams = sparams;
415 /* Find our DN and conn first */
416 for( i = 0; sl.list[i].name; i++ ) {
417 if ( sl.list[i].name[0] == '*' ) {
418 if ( !strcmp( sl.list[i].name, slap_propnames[PROP_CONN] ) ) {
419 if ( sl.list[i].values && sl.list[i].values[0] )
420 AC_MEMCPY( &conn, sl.list[i].values[0], sizeof( conn ) );
423 if ( (flags & SASL_AUXPROP_AUTHZID) &&
424 !strcmp( sl.list[i].name, slap_propnames[PROP_AUTHZ] ) ) {
426 if ( sl.list[i].values && sl.list[i].values[0] )
427 AC_MEMCPY( &op.o_req_ndn, sl.list[i].values[0], sizeof( struct berval ) );
430 if ( !strcmp( sl.list[i].name, slap_propnames[PROP_AUTHC] ) ) {
431 if ( sl.list[i].values && sl.list[i].values[0] ) {
432 AC_MEMCPY( &op.o_req_ndn, sl.list[i].values[0], sizeof( struct berval ) );
433 if ( !(flags & SASL_AUXPROP_AUTHZID) )
440 /* Now see what else needs to be fetched */
441 for( i = 0; sl.list[i].name; i++ ) {
442 const char *name = sl.list[i].name;
444 if ( name[0] == '*' ) {
445 if ( flags & SASL_AUXPROP_AUTHZID ) continue;
446 /* Skip our private properties */
447 if ( !strcmp( name, slap_propnames[0] )) {
452 } else if ( !(flags & SASL_AUXPROP_AUTHZID ) )
455 if ( sl.list[i].values ) {
456 if ( !(flags & SASL_AUXPROP_OVERRIDE) ) continue;
463 slap_callback cb = { NULL, sasl_ap_lookup, NULL, NULL };
467 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
469 if ( op.o_bd && op.o_bd->be_search ) {
470 SlapReply rs = {REP_RESULT};
471 op.o_tag = LDAP_REQ_SEARCH;
472 op.o_protocol = LDAP_VERSION3;
473 op.o_ndn = conn->c_ndn;
475 op.o_time = slap_get_time();
476 op.o_do_not_cache = 1;
477 op.o_is_auth_check = 1;
478 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
479 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
480 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
482 op.o_connid = conn->c_connid;
483 op.o_req_dn = op.o_req_ndn;
484 op.ors_scope = LDAP_SCOPE_BASE;
485 op.ors_deref = LDAP_DEREF_NEVER;
487 op.ors_filter = &generic_filter;
488 op.ors_filterstr = generic_filterstr;
490 op.o_bd->be_search( &op, &rs );
495 #if SASL_VERSION_FULL >= 0x020110
499 sasl_server_params_t *sparams,
500 struct propctx *prctx,
505 SlapReply rs = {REP_RESULT};
507 Connection *conn = NULL;
508 const struct propval *pr;
509 Modifications *modlist = NULL, **modtail = &modlist, *mod;
510 slap_callback cb = { NULL, slap_null_cb, NULL, NULL };
511 char textbuf[SLAP_TEXT_BUFLEN];
513 size_t textlen = sizeof(textbuf);
515 /* just checking if we are enabled */
516 if (!prctx) return SASL_OK;
518 if (!sparams || !user) return SASL_BADPARAM;
520 pr = sparams->utils->prop_get( sparams->propctx );
522 /* Find our DN and conn first */
523 for( i = 0; pr[i].name; i++ ) {
524 if ( pr[i].name[0] == '*' ) {
525 if ( !strcmp( pr[i].name, slap_propnames[PROP_CONN] ) ) {
526 if ( pr[i].values && pr[i].values[0] )
527 AC_MEMCPY( &conn, pr[i].values[0], sizeof( conn ) );
530 if ( !strcmp( pr[i].name, slap_propnames[PROP_AUTHC] ) ) {
531 if ( pr[i].values && pr[i].values[0] ) {
532 AC_MEMCPY( &op.o_req_ndn, pr[i].values[0], sizeof( struct berval ) );
537 if (!conn || !op.o_req_ndn.bv_val) return SASL_BADPARAM;
539 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
541 if ( !op.o_bd || !op.o_bd->be_modify ) return SASL_FAIL;
543 pr = sparams->utils->prop_get( prctx );
544 if (!pr) return SASL_BADPARAM;
546 for (i=0; pr[i].name; i++);
547 if (!i) return SASL_BADPARAM;
549 for (i=0; pr[i].name; i++) {
550 mod = (Modifications *)ch_malloc( sizeof(Modifications) );
551 mod->sml_op = LDAP_MOD_REPLACE;
552 ber_str2bv( pr[i].name, 0, 0, &mod->sml_type );
553 mod->sml_values = (struct berval *)ch_malloc( (pr[i].nvalues + 1) *
554 sizeof(struct berval));
555 for (j=0; j<pr[i].nvalues; j++) {
556 ber_str2bv( pr[i].values[j], 0, 1, &mod->sml_values[j]);
558 BER_BVZERO( &mod->sml_values[j] );
559 mod->sml_nvalues = NULL;
560 mod->sml_desc = NULL;
562 modtail = &mod->sml_next;
566 rc = slap_mods_check( modlist, 0, &text, textbuf, textlen, NULL );
568 if ( rc == LDAP_SUCCESS ) {
569 rc = slap_mods_opattrs( &op, modlist, modtail, &text, textbuf,
573 if ( rc == LDAP_SUCCESS ) {
574 op.o_tag = LDAP_REQ_MODIFY;
575 op.o_protocol = LDAP_VERSION3;
576 op.o_ndn = op.o_req_ndn;
578 op.o_time = slap_get_time();
579 op.o_do_not_cache = 1;
580 op.o_is_auth_check = 1;
581 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
582 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
583 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
585 op.o_connid = conn->c_connid;
586 op.o_req_dn = op.o_req_ndn;
587 op.orm_modlist = modlist;
589 rc = op.o_bd->be_modify( &op, &rs );
591 slap_mods_free( modlist );
592 return rc ? SASL_FAIL : SASL_OK;
594 #endif /* SASL_VERSION_FULL >= 2.1.16 */
596 static sasl_auxprop_plug_t slap_auxprop_plugin = {
599 NULL, /* glob_context */
600 NULL, /* auxprop_free */
603 #if SASL_VERSION_FULL >= 0x020110
604 slap_auxprop_store /* the declaration of this member changed
605 * in cyrus SASL from 2.1.15 to 2.1.16 */
613 const sasl_utils_t *utils,
616 sasl_auxprop_plug_t **plug,
617 const char *plugname)
619 if ( !out_version || !plug ) return SASL_BADPARAM;
621 if ( max_version < SASL_AUXPROP_PLUG_VERSION ) return SASL_BADVERS;
623 *out_version = SASL_AUXPROP_PLUG_VERSION;
624 *plug = &slap_auxprop_plugin;
628 /* Convert a SASL authcid or authzid into a DN. Store the DN in an
629 * auxiliary property, so that we can refer to it in sasl_authorize
630 * without interfering with anything else. Also, the SASL username
631 * buffer is constrained to 256 characters, and our DNs could be
632 * much longer (SLAP_LDAPDN_MAXLEN, currently set to 8192)
635 slap_sasl_canonicalize(
641 const char *user_realm,
646 Connection *conn = (Connection *)context;
647 struct propctx *props = sasl_auxprop_getctx( sconn );
648 struct propval auxvals[3];
651 const char *names[2];
657 LDAP_LOG( TRANSPORT, ENTRY,
658 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
659 conn ? conn->c_connid : -1,
660 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
661 in ? in : "<empty>");
663 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
664 conn ? conn->c_connid : -1,
665 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
666 in ? in : "<empty>");
669 /* If name is too big, just truncate. We don't care, we're
670 * using DNs, not the usernames.
672 if ( inlen > out_max )
675 /* This is a Simple Bind using SPASSWD. That means the in-directory
676 * userPassword of the Binding user already points at SASL, so it
677 * cannot be used to actually satisfy a password comparison. Just
678 * ignore it, some other mech will process it.
680 if ( !conn->c_sasl_bindop ||
681 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) goto done;
683 /* See if we need to add request, can only do it once */
684 prop_getnames( props, slap_propnames, auxvals );
685 if ( !auxvals[0].name )
686 prop_request( props, slap_propnames );
688 if ( flags & SASL_CU_AUTHID )
693 /* Need to store the Connection for auxprop_lookup */
694 if ( !auxvals[PROP_CONN].values ) {
695 names[0] = slap_propnames[PROP_CONN];
697 prop_set( props, names[0], (char *)&conn, sizeof( conn ) );
700 /* Already been here? */
701 if ( auxvals[which].values )
704 /* Normally we require an authzID to have a u: or dn: prefix.
705 * However, SASL frequently gives us an authzID that is just
706 * an exact copy of the authcID, without a prefix. We need to
707 * detect and allow this condition. If SASL calls canonicalize
708 * with SASL_CU_AUTHID|SASL_CU_AUTHZID this is a no-brainer.
709 * But if it's broken into two calls, we need to remember the
710 * authcID so that we can compare the authzID later. We store
711 * the authcID temporarily in conn->c_sasl_dn. We necessarily
712 * finish Canonicalizing before Authorizing, so there is no
713 * conflict with slap_sasl_authorize's use of this temp var.
715 * The SASL EXTERNAL mech is backwards from all the other mechs,
716 * it does authzID before the authcID. If we see that authzID
717 * has already been done, don't do anything special with authcID.
719 if ( flags == SASL_CU_AUTHID && !auxvals[PROP_AUTHZ].values ) {
720 conn->c_sasl_dn.bv_val = (char *) in;
721 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
722 rc = strcmp( in, conn->c_sasl_dn.bv_val );
723 conn->c_sasl_dn.bv_val = NULL;
724 /* They were equal, no work needed */
725 if ( !rc ) goto done;
728 bvin.bv_val = (char *)in;
730 rc = slap_sasl_getdn( conn, NULL, &bvin, (char *)user_realm, &dn,
731 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
732 if ( rc != LDAP_SUCCESS ) {
733 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
737 names[0] = slap_propnames[which];
740 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
743 LDAP_LOG( TRANSPORT, ENTRY,
744 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
745 conn ? conn->c_connid : -1, names[0]+1,
746 dn.bv_val ? dn.bv_val : "<EMPTY>" );
748 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
749 conn ? conn->c_connid : -1, names[0]+1,
750 dn.bv_val ? dn.bv_val : "<EMPTY>" );
754 AC_MEMCPY( out, in, inlen );
766 char *requested_user,
770 const char *def_realm,
772 struct propctx *props)
774 Connection *conn = (Connection *)context;
775 struct propval auxvals[3];
776 struct berval authcDN, authzDN;
779 /* Simple Binds don't support proxy authorization, ignore it */
780 if ( !conn->c_sasl_bindop ||
781 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) return SASL_OK;
784 LDAP_LOG( TRANSPORT, ENTRY,
785 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
786 conn ? conn->c_connid : -1, auth_identity, requested_user);
788 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
789 "authcid=\"%s\" authzid=\"%s\"\n",
790 conn ? conn->c_connid : -1, auth_identity, requested_user );
792 if ( conn->c_sasl_dn.bv_val ) {
793 ch_free( conn->c_sasl_dn.bv_val );
794 BER_BVZERO( &conn->c_sasl_dn );
798 prop_getnames( props, slap_propnames+1, auxvals );
800 /* Should not happen */
801 if ( !auxvals[0].values ) {
802 sasl_seterror( sconn, 0, "invalid authcid" );
806 AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
808 /* Nothing to do if no authzID was given */
809 if ( !auxvals[1].name || !auxvals[1].values ) {
810 conn->c_sasl_dn = authcDN;
814 AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
816 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
817 ch_free( authcDN.bv_val );
818 if ( rc != LDAP_SUCCESS ) {
820 LDAP_LOG( TRANSPORT, INFO,
821 "slap_sasl_authorize: conn %ld "
822 "proxy authorization disallowed (%d)\n",
823 (long)(conn ? conn->c_connid : -1), rc, 0 );
825 Debug( LDAP_DEBUG_TRACE, "SASL Proxy Authorize [conn=%ld]: "
826 "proxy authorization disallowed (%d)\n",
827 (long) (conn ? conn->c_connid : -1), rc, 0 );
830 sasl_seterror( sconn, 0, "not authorized" );
831 ch_free( authzDN.bv_val );
835 conn->c_sasl_dn = authzDN;
837 if (conn->c_sasl_bindop) {
838 Statslog( LDAP_DEBUG_STATS,
839 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
840 conn->c_connid, conn->c_sasl_bindop->o_opid,
841 auth_identity, 0, 0);
845 LDAP_LOG( TRANSPORT, ENTRY,
846 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
847 (long)(conn ? conn->c_connid : -1), 0, 0 );
849 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
850 " proxy authorization allowed\n",
851 (long) (conn ? conn->c_connid : -1), 0, 0 );
864 struct berval authcDN, authzDN;
866 Connection *conn = context;
868 struct berval bvauthcid, bvauthzid;
871 if ( conn->c_sasl_dn.bv_val ) {
872 ch_free( conn->c_sasl_dn.bv_val );
873 BER_BVZERO( &conn->c_sasl_dn );
877 LDAP_LOG( TRANSPORT, ENTRY,
878 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
879 conn ? conn->c_connid : -1, authcid ? authcid : "<empty>",
880 authzid ? authzid : "<empty>" );
882 Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
883 "authcid=\"%s\" authzid=\"%s\"\n",
884 (long) (conn ? conn->c_connid : -1),
885 authcid ? authcid : "<empty>",
886 authzid ? authzid : "<empty>" );
889 /* Figure out how much data we have for the dn */
890 rc = sasl_getprop( conn->c_sasl_authctx, SASL_REALM, (void **)&realm );
891 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
893 LDAP_LOG( TRANSPORT, ERR,
894 "slap_sasl_authorize: getprop(REALM) failed.\n", 0, 0, 0 );
896 Debug(LDAP_DEBUG_TRACE,
897 "authorize: getprop(REALM) failed!\n", 0,0,0);
899 *errstr = "Could not extract realm";
903 /* Convert the identities to DN's. If no authzid was given, client will
904 be bound as the DN matching their username */
905 bvauthcid.bv_val = authcid;
906 bvauthcid.bv_len = authcid ? strlen( authcid ) : 0;
907 rc = slap_sasl_getdn( conn, NULL, &bvauthcid, realm,
908 &authcDN, SLAP_GETDN_AUTHCID );
909 if( rc != LDAP_SUCCESS ) {
910 *errstr = ldap_err2string( rc );
913 if( ( authzid == NULL ) || !strcmp( authcid, authzid ) ) {
915 LDAP_LOG( TRANSPORT, ENTRY,
916 "slap_sasl_authorize: conn %d Using authcDN=%s\n",
917 conn ? conn->c_connid : -1, authcDN.bv_val, 0 );
919 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
920 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
923 conn->c_sasl_dn = authcDN;
927 bvauthzid.bv_val = authzid;
928 bvauthzid.bv_len = authzid ? strlen( authzid ) : 0;
929 rc = slap_sasl_getdn( conn, NULL, &bvauthzid, realm,
930 &authzDN, SLAP_GETDN_AUTHZID );
931 if( rc != LDAP_SUCCESS ) {
932 ch_free( authcDN.bv_val );
933 *errstr = ldap_err2string( rc );
937 rc = slap_sasl_authorized(conn->c_sasl_bindop, &authcDN, &authzDN );
938 ch_free( authcDN.bv_val );
941 LDAP_LOG( TRANSPORT, INFO,
942 "slap_sasl_authorize: conn %ld "
943 "proxy authorization disallowed (%d)\n",
944 (long)(conn ? conn->c_connid : -1), rc, 0 );
946 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
947 "proxy authorization disallowed (%d)\n",
948 (long) (conn ? conn->c_connid : -1), rc, 0 );
951 *errstr = "not authorized";
952 ch_free( authzDN.bv_val );
955 conn->c_sasl_dn = authzDN;
959 LDAP_LOG( TRANSPORT, RESULTS,
960 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
961 (long)(conn ? conn->c_connid : -1 ), 0, 0 );
963 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
964 " authorization allowed\n",
965 (long) (conn ? conn->c_connid : -1), 0, 0 );
968 if (conn->c_sasl_bindop) {
969 Statslog( LDAP_DEBUG_STATS,
970 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
971 conn->c_connid, conn->c_sasl_bindop->o_opid,
978 #endif /* SASL_VERSION_MAJOR >= 2 */
981 slap_sasl_err2ldap( int saslerr )
990 rc = LDAP_SASL_BIND_IN_PROGRESS;
999 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1002 rc = LDAP_INVALID_CREDENTIALS;
1005 rc = LDAP_INSUFFICIENT_ACCESS;
1009 rc = LDAP_INAPPROPRIATE_AUTH;
1020 int slap_sasl_init( void )
1022 #ifdef HAVE_CYRUS_SASL
1024 static sasl_callback_t server_callbacks[] = {
1025 { SASL_CB_LOG, &slap_sasl_log, NULL },
1026 { SASL_CB_LIST_END, NULL, NULL }
1029 #ifdef HAVE_SASL_VERSION
1030 /* stringify the version number, sasl.h doesn't do it for us */
1031 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1032 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1033 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1036 sasl_version( NULL, &rc );
1037 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1038 (rc & 0xffff) < SASL_VERSION_STEP)
1040 char version[sizeof("xxx.xxx.xxxxx")];
1041 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1044 LDAP_LOG( TRANSPORT, INFO,
1045 "slap_sasl_init: SASL library version mismatch:"
1046 " expected " SASL_VERSION_STRING ","
1047 " got %s\n", version, 0, 0 );
1049 Debug( LDAP_DEBUG_ANY,
1050 "slap_sasl_init: SASL library version mismatch:"
1051 " expected " SASL_VERSION_STRING ","
1052 " got %s\n", version, 0, 0 );
1058 /* SASL 2 does its own memory management internally */
1059 #if SASL_VERSION_MAJOR < 2
1068 ldap_pvt_sasl_mutex_new,
1069 ldap_pvt_sasl_mutex_lock,
1070 ldap_pvt_sasl_mutex_unlock,
1071 ldap_pvt_sasl_mutex_dispose );
1073 #if SASL_VERSION_MAJOR >= 2
1074 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1076 sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1078 /* should provide callbacks for logging */
1079 /* server name should be configurable */
1080 rc = sasl_server_init( server_callbacks, "slapd" );
1082 if( rc != SASL_OK ) {
1084 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: init failed.\n", 0, 0, 0 );
1086 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
1089 #if SASL_VERSION_MAJOR < 2
1090 /* A no-op used to make sure we linked with Cyrus 1.5 */
1091 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1098 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: initialized!\n", 0, 0, 0 );
1100 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1104 /* default security properties */
1105 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1106 sasl_secprops.max_ssf = INT_MAX;
1107 sasl_secprops.maxbufsize = 65536;
1108 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1114 int slap_sasl_destroy( void )
1116 #ifdef HAVE_CYRUS_SASL
1119 free( global_host );
1125 int slap_sasl_open( Connection *conn, int reopen )
1127 int sc = LDAP_SUCCESS;
1128 #ifdef HAVE_CYRUS_SASL
1131 sasl_conn_t *ctx = NULL;
1132 sasl_callback_t *session_callbacks;
1134 #if SASL_VERSION_MAJOR >= 2
1135 char *ipremoteport = NULL, *iplocalport = NULL;
1138 assert( conn->c_sasl_authctx == NULL );
1141 assert( conn->c_sasl_extra == NULL );
1144 #if SASL_VERSION_MAJOR >= 2
1145 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1147 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1149 if( session_callbacks == NULL ) {
1151 LDAP_LOG( TRANSPORT, ERR,
1152 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1154 Debug( LDAP_DEBUG_ANY,
1155 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1159 conn->c_sasl_extra = session_callbacks;
1161 session_callbacks[cb=0].id = SASL_CB_LOG;
1162 session_callbacks[cb].proc = &slap_sasl_log;
1163 session_callbacks[cb++].context = conn;
1165 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1166 session_callbacks[cb].proc = &slap_sasl_authorize;
1167 session_callbacks[cb++].context = conn;
1169 #if SASL_VERSION_MAJOR >= 2
1170 session_callbacks[cb].id = SASL_CB_CANON_USER;
1171 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1172 session_callbacks[cb++].context = conn;
1175 session_callbacks[cb].id = SASL_CB_LIST_END;
1176 session_callbacks[cb].proc = NULL;
1177 session_callbacks[cb++].context = NULL;
1179 session_callbacks = conn->c_sasl_extra;
1182 conn->c_sasl_layers = 0;
1184 if( global_host == NULL ) {
1185 global_host = ldap_pvt_get_fqdn( NULL );
1188 /* create new SASL context */
1189 #if SASL_VERSION_MAJOR >= 2
1190 if ( conn->c_sock_name.bv_len != 0 &&
1191 strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
1194 iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
1195 /* Convert IPv6 addresses to address;port syntax. */
1196 p = strrchr( iplocalport, ' ' );
1197 /* Convert IPv4 addresses to address;port syntax. */
1198 if ( p == NULL ) p = strchr( iplocalport, ':' );
1203 if ( conn->c_peer_name.bv_len != 0 &&
1204 strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
1207 ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
1208 /* Convert IPv6 addresses to address;port syntax. */
1209 p = strrchr( ipremoteport, ' ' );
1210 /* Convert IPv4 addresses to address;port syntax. */
1211 if ( p == NULL ) p = strchr( ipremoteport, ':' );
1216 sc = sasl_server_new( "ldap", global_host, global_realm,
1217 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1218 if ( iplocalport != NULL ) {
1219 ch_free( iplocalport );
1221 if ( ipremoteport != NULL ) {
1222 ch_free( ipremoteport );
1225 sc = sasl_server_new( "ldap", global_host, global_realm,
1226 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1229 if( sc != SASL_OK ) {
1231 LDAP_LOG( TRANSPORT, ERR,
1232 "slap_sasl_open: sasl_server_new failed: %d\n", sc, 0, 0 );
1234 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1241 conn->c_sasl_authctx = ctx;
1243 if( sc == SASL_OK ) {
1244 sc = sasl_setprop( ctx,
1245 SASL_SEC_PROPS, &sasl_secprops );
1247 if( sc != SASL_OK ) {
1249 LDAP_LOG( TRANSPORT, ERR,
1250 "slap_sasl_open: sasl_setprop failed: %d \n", sc, 0, 0 );
1252 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1256 slap_sasl_close( conn );
1261 sc = slap_sasl_err2ldap( sc );
1263 #elif defined(SLAP_BUILTIN_SASL)
1264 /* built-in SASL implementation */
1265 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1266 if( ctx == NULL ) return -1;
1268 ctx->sc_external_ssf = 0;
1269 BER_BVZERO( &ctx->sc_external_id );
1271 conn->c_sasl_authctx = ctx;
1277 int slap_sasl_external(
1280 struct berval *auth_id )
1282 #if SASL_VERSION_MAJOR >= 2
1284 sasl_conn_t *ctx = conn->c_sasl_authctx;
1286 if ( ctx == NULL ) {
1287 return LDAP_UNAVAILABLE;
1290 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1292 if ( sc != SASL_OK ) {
1296 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1297 auth_id ? auth_id->bv_val : NULL );
1299 if ( sc != SASL_OK ) {
1303 #elif defined(HAVE_CYRUS_SASL)
1305 sasl_conn_t *ctx = conn->c_sasl_authctx;
1306 sasl_external_properties_t extprops;
1308 if ( ctx == NULL ) {
1309 return LDAP_UNAVAILABLE;
1312 memset( &extprops, '\0', sizeof(extprops) );
1314 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1316 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1317 (void *) &extprops );
1319 if ( sc != SASL_OK ) {
1322 #elif defined(SLAP_BUILTIN_SASL)
1323 /* built-in SASL implementation */
1324 SASL_CTX *ctx = conn->c_sasl_authctx;
1325 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1327 ctx->sc_external_ssf = ssf;
1329 ctx->sc_external_id = *auth_id;
1330 BER_BVZERO( auth_id );
1332 BER_BVZERO( &ctx->sc_external_id );
1336 return LDAP_SUCCESS;
1339 int slap_sasl_reset( Connection *conn )
1341 return LDAP_SUCCESS;
1344 char ** slap_sasl_mechs( Connection *conn )
1346 char **mechs = NULL;
1348 #ifdef HAVE_CYRUS_SASL
1349 sasl_conn_t *ctx = conn->c_sasl_authctx;
1351 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1355 SASL_CONST char *mechstr;
1357 sc = sasl_listmech( ctx,
1358 NULL, NULL, ",", NULL,
1359 &mechstr, NULL, NULL );
1361 if( sc != SASL_OK ) {
1363 LDAP_LOG( TRANSPORT, ERR,
1364 "slap_sasl_mechs: sasl_listmech failed: %d\n", sc, 0, 0 );
1366 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1373 mechs = ldap_str2charray( mechstr, "," );
1375 #if SASL_VERSION_MAJOR < 2
1379 #elif defined(SLAP_BUILTIN_SASL)
1380 /* builtin SASL implementation */
1381 SASL_CTX *ctx = conn->c_sasl_authctx;
1382 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1383 /* should check ssf */
1384 mechs = ldap_str2charray( "EXTERNAL", "," );
1391 int slap_sasl_close( Connection *conn )
1393 #ifdef HAVE_CYRUS_SASL
1394 sasl_conn_t *ctx = conn->c_sasl_authctx;
1397 sasl_dispose( &ctx );
1399 if ( conn->c_sasl_sockctx &&
1400 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1402 ctx = conn->c_sasl_sockctx;
1403 sasl_dispose( &ctx );
1406 conn->c_sasl_authctx = NULL;
1407 conn->c_sasl_sockctx = NULL;
1408 conn->c_sasl_done = 0;
1410 free( conn->c_sasl_extra );
1411 conn->c_sasl_extra = NULL;
1413 #elif defined(SLAP_BUILTIN_SASL)
1414 SASL_CTX *ctx = conn->c_sasl_authctx;
1416 if( ctx->sc_external_id.bv_val ) {
1417 free( ctx->sc_external_id.bv_val );
1418 BER_BVZERO( &ctx->sc_external_id );
1421 conn->c_sasl_authctx = NULL;
1425 return LDAP_SUCCESS;
1428 int slap_sasl_bind( Operation *op, SlapReply *rs )
1430 #ifdef HAVE_CYRUS_SASL
1431 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1432 struct berval response;
1433 unsigned reslen = 0;
1437 LDAP_LOG( TRANSPORT, ENTRY,
1438 "sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1439 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1440 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1441 op->o_conn->c_sasl_bind_mech.bv_val,
1442 op->orb_cred.bv_len );
1444 Debug(LDAP_DEBUG_ARGS,
1445 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1446 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1447 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1448 op->o_conn->c_sasl_bind_mech.bv_val,
1449 op->orb_cred.bv_len );
1453 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1454 "SASL unavailable on this session" );
1458 #if SASL_VERSION_MAJOR >= 2
1459 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1460 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1461 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1462 sasl_server_step( ctx, cred, clen, resp, rlen )
1464 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1465 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1466 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1467 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1470 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1471 /* If we already authenticated once, must use a new context */
1472 if ( op->o_conn->c_sasl_done ) {
1474 const char *authid = NULL;
1475 #if SASL_VERSION_MAJOR >= 2
1476 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1477 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1478 if ( authid ) authid = ch_strdup( authid );
1480 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1481 sasl_dispose( &ctx );
1483 op->o_conn->c_sasl_authctx = NULL;
1485 slap_sasl_open( op->o_conn, 1 );
1486 ctx = op->o_conn->c_sasl_authctx;
1487 #if SASL_VERSION_MAJOR >= 2
1489 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1490 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1491 ch_free( (char *)authid );
1496 op->o_conn->c_sasl_bind_mech.bv_val,
1497 op->orb_cred.bv_val, op->orb_cred.bv_len,
1498 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1502 op->orb_cred.bv_val, op->orb_cred.bv_len,
1503 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1506 response.bv_len = reslen;
1508 if ( sc == SASL_OK ) {
1509 sasl_ssf_t *ssf = NULL;
1511 op->orb_edn = op->o_conn->c_sasl_dn;
1512 BER_BVZERO( &op->o_conn->c_sasl_dn );
1513 op->o_conn->c_sasl_done = 1;
1515 rs->sr_err = LDAP_SUCCESS;
1517 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1518 op->orb_ssf = ssf ? *ssf : 0;
1522 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1523 op->o_conn->c_sasl_layers++;
1525 /* If there's an old layer, set sockctx to NULL to
1526 * tell connection_read() to wait for us to finish.
1527 * Otherwise there is a race condition: we have to
1528 * send the Bind response using the old security
1529 * context and then remove it before reading any
1532 if ( op->o_conn->c_sasl_sockctx ) {
1533 ctx = op->o_conn->c_sasl_sockctx;
1534 op->o_conn->c_sasl_sockctx = NULL;
1536 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1538 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1541 /* Must send response using old security layer */
1542 if (response.bv_len) rs->sr_sasldata = &response;
1543 send_ldap_sasl( op, rs );
1545 /* Now dispose of the old security layer.
1548 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1549 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1550 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1551 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1552 sasl_dispose( &ctx );
1554 } else if ( sc == SASL_CONTINUE ) {
1555 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1556 rs->sr_sasldata = &response;
1557 send_ldap_sasl( op, rs );
1560 #if SASL_VERSION_MAJOR >= 2
1561 rs->sr_text = sasl_errdetail( ctx );
1563 rs->sr_err = slap_sasl_err2ldap( sc ),
1564 send_ldap_result( op, rs );
1567 #if SASL_VERSION_MAJOR < 2
1568 if( response.bv_len ) {
1569 ch_free( response.bv_val );
1574 LDAP_LOG( TRANSPORT, RESULTS, "slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0 );
1576 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1579 #elif defined(SLAP_BUILTIN_SASL)
1580 /* built-in SASL implementation */
1581 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1583 if ( ctx == NULL ) {
1584 send_ldap_error( op, rs, LDAP_OTHER,
1585 "Internal SASL Error" );
1587 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1590 if( op->orb_cred.bv_len ) {
1591 rs->sr_text = "proxy authorization not support";
1592 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1593 send_ldap_result( op, rs );
1596 op->orb_edn = ctx->sc_external_id;
1597 rs->sr_err = LDAP_SUCCESS;
1598 rs->sr_sasldata = NULL;
1599 send_ldap_sasl( op, rs );
1603 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1604 "requested SASL mechanism not supported" );
1607 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1608 "SASL not supported" );
1614 char* slap_sasl_secprops( const char *in )
1616 #ifdef HAVE_CYRUS_SASL
1617 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1619 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1621 return "SASL not supported";
1625 #ifdef HAVE_CYRUS_SASL
1627 slap_sasl_setpass( Operation *op, SlapReply *rs )
1629 struct berval id = BER_BVNULL; /* needs to come from connection */
1630 struct berval new = BER_BVNULL;
1631 struct berval old = BER_BVNULL;
1633 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1635 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1636 (SASL_CONST void **)&id.bv_val );
1638 if( rs->sr_err != SASL_OK ) {
1639 rs->sr_text = "unable to retrieve SASL username";
1640 rs->sr_err = LDAP_OTHER;
1645 LDAP_LOG( BACKEND, ENTRY,
1646 "slap_sasl_setpass: \"%s\"\n",
1647 id.bv_val ? id.bv_val : "", 0, 0);
1649 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1650 id.bv_val ? id.bv_val : "", 0, 0 );
1653 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1654 NULL, &old, &new, &rs->sr_text );
1656 if( rs->sr_err != LDAP_SUCCESS ) {
1660 if( new.bv_len == 0 ) {
1661 slap_passwd_generate(&new);
1663 if( new.bv_len == 0 ) {
1664 rs->sr_text = "password generation failed.";
1665 rs->sr_err = LDAP_OTHER;
1669 rs->sr_rspdata = slap_passwd_return( &new );
1672 #if SASL_VERSION_MAJOR < 2
1673 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1674 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1676 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1677 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1678 if( rs->sr_err != SASL_OK ) {
1679 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1682 switch(rs->sr_err) {
1684 rs->sr_err = LDAP_SUCCESS;
1694 rs->sr_err = LDAP_OTHER;
1700 #endif /* HAVE_CYRUS_SASL */
1702 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1703 * string returned in *dn is in its own allocated memory, and must be free'd
1704 * by the calling process. -Mark Adamson, Carnegie Mellon
1706 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1707 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1714 int slap_sasl_getdn( Connection *conn, Operation *op, struct berval *id,
1715 char *user_realm, struct berval *dn, int flags )
1717 int rc, is_dn = SET_NONE, do_norm = 1;
1718 struct berval dn2, *mech;
1724 LDAP_LOG( TRANSPORT, ENTRY,
1725 "slap_sasl_getdn: conn %d id=%s [len=%d]\n",
1727 BER_BVISNULL( id ) ? "NULL" : ( BER_BVISEMPTY( id ) ? "<empty>" : id->bv_val ),
1728 BER_BVISNULL( id ) ? 0 : ( BER_BVISEMPTY( id ) ? 0 : id->bv_len ) );
1730 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: conn %d id=%s [len=%d]\n",
1732 BER_BVISNULL( id ) ? "NULL" : ( BER_BVISEMPTY( id ) ? "<empty>" : id->bv_val ),
1733 BER_BVISNULL( id ) ? 0 : ( BER_BVISEMPTY( id ) ? 0 : id->bv_len ) );
1737 op = conn->c_sasl_bindop;
1742 if ( !BER_BVISNULL( id ) ) {
1743 /* Blatantly anonymous ID */
1744 static struct berval bv_anonymous = BER_BVC( "anonymous" );
1746 if ( ber_bvstrcasecmp( id, &bv_anonymous ) == 0 ) {
1747 return( LDAP_SUCCESS );
1751 /* FIXME: if empty, should we stop? */
1752 BER_BVSTR( id, "" );
1755 if ( !BER_BVISEMPTY( &conn->c_sasl_bind_mech ) ) {
1756 mech = &conn->c_sasl_bind_mech;
1758 mech = &conn->c_authmech;
1761 /* An authcID needs to be converted to authzID form. Set the
1762 * values directly into *dn; they will be normalized later. (and
1763 * normalizing always makes a new copy.) An ID from a TLS certificate
1764 * is already normalized, so copy it and skip normalization.
1766 if( flags & SLAP_GETDN_AUTHCID ) {
1767 if( bvmatch( mech, &ext_bv )) {
1768 /* EXTERNAL DNs are already normalized */
1769 assert( !BER_BVISNULL( id ) );
1773 ber_dupbv_x( dn, id, op->o_tmpmemctx );
1776 /* convert to u:<username> form */
1782 if( is_dn == SET_NONE ) {
1783 if( !strncasecmp( id->bv_val, "u:", STRLENOF( "u:" ) ) ) {
1785 dn->bv_val = id->bv_val + STRLENOF( "u:" );
1786 dn->bv_len = id->bv_len - STRLENOF( "u:" );
1788 } else if ( !strncasecmp( id->bv_val, "dn:", STRLENOF( "dn:" ) ) ) {
1790 dn->bv_val = id->bv_val + STRLENOF( "dn:" );
1791 dn->bv_len = id->bv_len - STRLENOF( "dn:" );
1795 /* No other possibilities from here */
1796 if( is_dn == SET_NONE ) {
1798 return( LDAP_INAPPROPRIATE_AUTH );
1801 /* Username strings */
1802 if( is_dn == SET_U ) {
1804 struct berval realm = BER_BVNULL, c1 = *dn;
1807 len = dn->bv_len + STRLENOF( "uid=" ) + STRLENOF( ",cn=auth" );
1809 if( user_realm && *user_realm ) {
1810 ber_str2bv( user_realm, 0, 0, &realm );
1811 len += realm.bv_len + STRLENOF( ",cn=" );
1814 if( mech->bv_len ) {
1815 len += mech->bv_len + STRLENOF( ",cn=" );
1818 /* Build the new dn */
1819 dn->bv_val = sl_malloc( len + 1, op->o_tmpmemctx );
1820 if( dn->bv_val == NULL ) {
1822 LDAP_LOG( TRANSPORT, ERR,
1823 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1825 Debug( LDAP_DEBUG_ANY,
1826 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1830 p = lutil_strcopy( dn->bv_val, "uid=" );
1831 p = lutil_strncopy( p, c1.bv_val, c1.bv_len );
1833 if( realm.bv_len ) {
1834 p = lutil_strcopy( p, ",cn=" );
1835 p = lutil_strncopy( p, realm.bv_val, realm.bv_len );
1838 if( mech->bv_len ) {
1839 p = lutil_strcopy( p, ",cn=" );
1840 p = lutil_strcopy( p, mech->bv_val );
1842 p = lutil_strcopy( p, ",cn=auth" );
1843 dn->bv_len = p - dn->bv_val;
1846 LDAP_LOG( TRANSPORT, ENTRY,
1847 "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val, 0, 0 );
1849 Debug( LDAP_DEBUG_TRACE, "slap_sasl_getdn: u:id converted to %s\n", dn->bv_val,0,0 );
1853 /* Dup the DN in any case, so we don't risk
1854 * leaks or dangling pointers later,
1855 * and the DN value is '\0' terminated */
1856 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
1857 dn->bv_val = dn2.bv_val;
1860 /* All strings are in DN form now. Normalize if needed. */
1862 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
1864 /* User DNs were constructed above and must be freed now */
1865 sl_free( dn->bv_val, op->o_tmpmemctx );
1867 if ( rc != LDAP_SUCCESS ) {
1874 /* Run thru regexp */
1875 slap_sasl2dn( op, dn, &dn2, flags );
1876 if( !BER_BVISNULL( &dn2 ) ) {
1877 sl_free( dn->bv_val, op->o_tmpmemctx );
1880 LDAP_LOG( TRANSPORT, ENTRY,
1881 "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val, 0, 0 );
1883 Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
1888 return( LDAP_SUCCESS );