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", "*authcDN", "*authzDN", NULL };
323 static Filter generic_filter = { LDAP_FILTER_PRESENT };
324 static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
330 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; i < sl->last; i++ ) {
353 const char *name = sl->list[i].name;
355 if ( name[0] == '*' ) {
356 if ( sl->flags & SASL_AUXPROP_AUTHZID ) continue;
358 } else if ( !(sl->flags & SASL_AUXPROP_AUTHZID ) )
361 if ( sl->list[i].values ) {
362 if ( !(sl->flags & SASL_AUXPROP_OVERRIDE) ) continue;
365 rc = slap_str2ad( name, &ad, &text );
366 if ( rc != LDAP_SUCCESS ) {
368 LDAP_LOG( TRANSPORT, DETAIL1,
369 "slap_auxprop: str2ad(%s): %s\n", name, text, 0 );
371 Debug( LDAP_DEBUG_TRACE,
372 "slap_auxprop: str2ad(%s): %s\n", name, text, 0 );
376 a = attr_find( rs->sr_entry->e_attrs, ad );
378 if ( ! access_allowed( op, rs->sr_entry, ad, NULL, ACL_AUTH, NULL ) ) {
381 if ( sl->list[i].values && ( sl->flags & SASL_AUXPROP_OVERRIDE ) ) {
382 sl->sparams->utils->prop_erase( sl->sparams->propctx,
385 for ( bv = a->a_vals; bv->bv_val; bv++ ) {
386 sl->sparams->utils->prop_set( sl->sparams->propctx,
387 sl->list[i].name, bv->bv_val, bv->bv_len );
396 sasl_server_params_t *sparams,
403 Connection *conn = NULL;
406 sl.list = sparams->utils->prop_get( sparams->propctx );
407 sl.sparams = sparams;
410 /* Find our DN and conn first */
411 for( i = 0, sl.last = 0; sl.list[i].name; i++ ) {
412 if ( sl.list[i].name[0] == '*' ) {
413 if ( !strcmp( sl.list[i].name, slap_propnames[PROP_CONN] ) ) {
414 if ( sl.list[i].values && sl.list[i].values[0] )
415 AC_MEMCPY( &conn, sl.list[i].values[0], sizeof( conn ) );
416 if ( !sl.last ) sl.last = i;
418 if ( (flags & SASL_AUXPROP_AUTHZID) &&
419 !strcmp( sl.list[i].name, slap_propnames[PROP_AUTHZ] ) ) {
421 if ( sl.list[i].values && sl.list[i].values[0] )
422 AC_MEMCPY( &op.o_req_ndn, sl.list[i].values[0], sizeof( struct berval ) );
423 if ( !sl.last ) sl.last = i;
426 if ( !strcmp( sl.list[i].name, slap_propnames[PROP_AUTHC] ) ) {
427 if ( !sl.last ) sl.last = i;
428 if ( sl.list[i].values && sl.list[i].values[0] ) {
429 AC_MEMCPY( &op.o_req_ndn, sl.list[i].values[0], sizeof( struct berval ) );
430 if ( !(flags & SASL_AUXPROP_AUTHZID) )
437 /* Now see what else needs to be fetched */
438 for( i = 0; i < sl.last; i++ ) {
439 const char *name = sl.list[i].name;
441 if ( name[0] == '*' ) {
442 if ( flags & SASL_AUXPROP_AUTHZID ) continue;
444 } else if ( !(flags & SASL_AUXPROP_AUTHZID ) )
447 if ( sl.list[i].values ) {
448 if ( !(flags & SASL_AUXPROP_OVERRIDE) ) continue;
454 slap_callback cb = { NULL, sasl_ap_lookup, NULL, NULL };
458 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
460 if ( op.o_bd && op.o_bd->be_search ) {
461 SlapReply rs = {REP_RESULT};
462 op.o_tag = LDAP_REQ_SEARCH;
463 op.o_protocol = LDAP_VERSION3;
464 op.o_ndn = conn->c_ndn;
466 op.o_time = slap_get_time();
467 op.o_do_not_cache = 1;
468 op.o_is_auth_check = 1;
469 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
470 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
471 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
473 op.o_connid = conn->c_connid;
474 op.o_req_dn = op.o_req_ndn;
475 op.ors_scope = LDAP_SCOPE_BASE;
476 op.ors_deref = LDAP_DEREF_NEVER;
478 op.ors_filter = &generic_filter;
479 op.ors_filterstr = generic_filterstr;
481 op.o_bd->be_search( &op, &rs );
486 #if SASL_VERSION_FULL >= 0x020110
490 sasl_server_params_t *sparams,
491 struct propctx *prctx,
496 SlapReply rs = {REP_RESULT};
498 Connection *conn = NULL;
499 const struct propval *pr;
500 Modifications *modlist = NULL, **modtail = &modlist, *mod;
501 slap_callback cb = { NULL, slap_null_cb, NULL, NULL };
502 char textbuf[SLAP_TEXT_BUFLEN];
504 size_t textlen = sizeof(textbuf);
506 /* just checking if we are enabled */
507 if (!prctx) return SASL_OK;
509 if (!sparams || !user) return SASL_BADPARAM;
511 pr = sparams->utils->prop_get( sparams->propctx );
513 /* Find our DN and conn first */
514 for( i = 0; pr[i].name; i++ ) {
515 if ( pr[i].name[0] == '*' ) {
516 if ( !strcmp( pr[i].name, slap_propnames[PROP_CONN] ) ) {
517 if ( pr[i].values && pr[i].values[0] )
518 AC_MEMCPY( &conn, pr[i].values[0], sizeof( conn ) );
521 if ( !strcmp( pr[i].name, slap_propnames[PROP_AUTHC] ) ) {
522 if ( pr[i].values && pr[i].values[0] ) {
523 AC_MEMCPY( &op.o_req_ndn, pr[i].values[0], sizeof( struct berval ) );
528 if (!conn || !op.o_req_ndn.bv_val) return SASL_BADPARAM;
530 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
532 if ( !op.o_bd || !op.o_bd->be_modify ) return SASL_FAIL;
534 pr = sparams->utils->prop_get( prctx );
535 if (!pr) return SASL_BADPARAM;
537 for (i=0; pr[i].name; i++);
538 if (!i) return SASL_BADPARAM;
540 for (i=0; pr[i].name; i++) {
541 mod = (Modifications *)ch_malloc( sizeof(Modifications) );
542 mod->sml_op = LDAP_MOD_REPLACE;
543 ber_str2bv( pr[i].name, 0, 0, &mod->sml_type );
544 mod->sml_values = (struct berval *)ch_malloc( (pr[i].nvalues + 1) *
545 sizeof(struct berval));
546 for (j=0; j<pr[i].nvalues; j++) {
547 ber_str2bv( pr[i].values[j], 0, 1, &mod->sml_values[j]);
549 mod->sml_values[j].bv_val = NULL;
550 mod->sml_values[j].bv_len = 0;
551 mod->sml_nvalues = NULL;
552 mod->sml_desc = NULL;
554 modtail = &mod->sml_next;
558 rc = slap_mods_check( modlist, 0, &text, textbuf, textlen, NULL );
560 if ( rc == LDAP_SUCCESS ) {
561 rc = slap_mods_opattrs( &op, modlist, modtail, &text, textbuf,
565 if ( rc == LDAP_SUCCESS ) {
566 op.o_tag = LDAP_REQ_MODIFY;
567 op.o_protocol = LDAP_VERSION3;
568 op.o_ndn = op.o_req_ndn;
570 op.o_time = slap_get_time();
571 op.o_do_not_cache = 1;
572 op.o_is_auth_check = 1;
573 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
574 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
575 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
577 op.o_connid = conn->c_connid;
578 op.o_req_dn = op.o_req_ndn;
579 op.orm_modlist = modlist;
581 rc = op.o_bd->be_modify( &op, &rs );
583 slap_mods_free( modlist );
584 return rc ? SASL_FAIL : SASL_OK;
586 #endif /* SASL_VERSION_FULL >= 2.1.16 */
588 static sasl_auxprop_plug_t slap_auxprop_plugin = {
591 NULL, /* glob_context */
592 NULL, /* auxprop_free */
595 #if SASL_VERSION_FULL >= 0x020110
596 slap_auxprop_store /* the declaration of this member changed
597 * in cyrus SASL from 2.1.15 to 2.1.16 */
605 const sasl_utils_t *utils,
608 sasl_auxprop_plug_t **plug,
609 const char *plugname)
611 if ( !out_version || !plug ) return SASL_BADPARAM;
613 if ( max_version < SASL_AUXPROP_PLUG_VERSION ) return SASL_BADVERS;
615 *out_version = SASL_AUXPROP_PLUG_VERSION;
616 *plug = &slap_auxprop_plugin;
620 /* Convert a SASL authcid or authzid into a DN. Store the DN in an
621 * auxiliary property, so that we can refer to it in sasl_authorize
622 * without interfering with anything else. Also, the SASL username
623 * buffer is constrained to 256 characters, and our DNs could be
624 * much longer (SLAP_LDAPDN_MAXLEN, currently set to 8192)
627 slap_sasl_canonicalize(
633 const char *user_realm,
638 Connection *conn = (Connection *)context;
639 struct propctx *props = sasl_auxprop_getctx( sconn );
640 struct propval auxvals[3];
643 const char *names[2];
648 LDAP_LOG( TRANSPORT, ENTRY,
649 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
650 conn ? conn->c_connid : -1,
651 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
652 in ? in : "<empty>");
654 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
655 conn ? conn->c_connid : -1,
656 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
657 in ? in : "<empty>");
660 /* If name is too big, just truncate. We don't care, we're
661 * using DNs, not the usernames.
663 if ( inlen > out_max )
666 /* This is a Simple Bind using SPASSWD. That means the in-directory
667 * userPassword of the Binding user already points at SASL, so it
668 * cannot be used to actually satisfy a password comparison. Just
669 * ignore it, some other mech will process it.
671 if ( !conn->c_sasl_bindop ||
672 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) goto done;
674 /* See if we need to add request, can only do it once */
675 prop_getnames( props, slap_propnames, auxvals );
676 if ( !auxvals[0].name )
677 prop_request( props, slap_propnames );
679 if ( flags & SASL_CU_AUTHID )
684 /* Need to store the Connection for auxprop_lookup */
685 if ( !auxvals[PROP_CONN].values ) {
686 names[0] = slap_propnames[PROP_CONN];
688 prop_set( props, names[0], (char *)&conn, sizeof( conn ) );
691 /* Already been here? */
692 if ( auxvals[which].values )
695 /* Normally we require an authzID to have a u: or dn: prefix.
696 * However, SASL frequently gives us an authzID that is just
697 * an exact copy of the authcID, without a prefix. We need to
698 * detect and allow this condition. If SASL calls canonicalize
699 * with SASL_CU_AUTHID|SASL_CU_AUTHZID this is a no-brainer.
700 * But if it's broken into two calls, we need to remember the
701 * authcID so that we can compare the authzID later. We store
702 * the authcID temporarily in conn->c_sasl_dn. We necessarily
703 * finish Canonicalizing before Authorizing, so there is no
704 * conflict with slap_sasl_authorize's use of this temp var.
706 * The SASL EXTERNAL mech is backwards from all the other mechs,
707 * it does authzID before the authcID. If we see that authzID
708 * has already been done, don't do anything special with authcID.
710 if ( flags == SASL_CU_AUTHID && !auxvals[PROP_AUTHZ].values ) {
711 conn->c_sasl_dn.bv_val = (char *) in;
712 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
713 rc = strcmp( in, conn->c_sasl_dn.bv_val );
714 conn->c_sasl_dn.bv_val = NULL;
715 /* They were equal, no work needed */
716 if ( !rc ) goto done;
719 rc = slap_sasl_getdn( conn, NULL, (char *)in, inlen, (char *)user_realm, &dn,
720 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
721 if ( rc != LDAP_SUCCESS ) {
722 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
726 names[0] = slap_propnames[which];
729 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
732 LDAP_LOG( TRANSPORT, ENTRY,
733 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
734 conn ? conn->c_connid : -1, names[0]+1,
735 dn.bv_val ? dn.bv_val : "<EMPTY>" );
737 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
738 conn ? conn->c_connid : -1, names[0]+1,
739 dn.bv_val ? dn.bv_val : "<EMPTY>" );
743 AC_MEMCPY( out, in, inlen );
755 char *requested_user,
759 const char *def_realm,
761 struct propctx *props)
763 Connection *conn = (Connection *)context;
764 struct propval auxvals[3];
765 struct berval authcDN, authzDN;
768 /* Simple Binds don't support proxy authorization, ignore it */
769 if ( !conn->c_sasl_bindop ||
770 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) return SASL_OK;
773 LDAP_LOG( TRANSPORT, ENTRY,
774 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
775 conn ? conn->c_connid : -1, auth_identity, requested_user);
777 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
778 "authcid=\"%s\" authzid=\"%s\"\n",
779 conn ? conn->c_connid : -1, auth_identity, requested_user );
781 if ( conn->c_sasl_dn.bv_val ) {
782 ch_free( conn->c_sasl_dn.bv_val );
783 conn->c_sasl_dn.bv_val = NULL;
784 conn->c_sasl_dn.bv_len = 0;
788 prop_getnames( props, slap_propnames+1, auxvals );
790 /* Should not happen */
791 if ( !auxvals[0].values ) {
792 sasl_seterror( sconn, 0, "invalid authcid" );
796 AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
798 /* Nothing to do if no authzID was given */
799 if ( !auxvals[1].name || !auxvals[1].values ) {
800 conn->c_sasl_dn = authcDN;
804 AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
806 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
807 ch_free( authcDN.bv_val );
808 if ( rc != LDAP_SUCCESS ) {
810 LDAP_LOG( TRANSPORT, INFO,
811 "slap_sasl_authorize: conn %ld "
812 "proxy authorization disallowed (%d)\n",
813 (long)(conn ? conn->c_connid : -1), rc, 0 );
815 Debug( LDAP_DEBUG_TRACE, "SASL Proxy Authorize [conn=%ld]: "
816 "proxy authorization disallowed (%d)\n",
817 (long) (conn ? conn->c_connid : -1), rc, 0 );
820 sasl_seterror( sconn, 0, "not authorized" );
821 ch_free( authzDN.bv_val );
825 conn->c_sasl_dn = authzDN;
827 if (conn->c_sasl_bindop) {
828 Statslog( LDAP_DEBUG_STATS,
829 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
830 conn->c_connid, conn->c_sasl_bindop->o_opid,
831 auth_identity, 0, 0);
835 LDAP_LOG( TRANSPORT, ENTRY,
836 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
837 (long)(conn ? conn->c_connid : -1), 0, 0 );
839 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
840 " proxy authorization allowed\n",
841 (long) (conn ? conn->c_connid : -1), 0, 0 );
854 struct berval authcDN, authzDN;
856 Connection *conn = context;
860 if ( conn->c_sasl_dn.bv_val ) {
861 ch_free( conn->c_sasl_dn.bv_val );
862 conn->c_sasl_dn.bv_val = NULL;
863 conn->c_sasl_dn.bv_len = 0;
867 LDAP_LOG( TRANSPORT, ENTRY,
868 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
869 conn ? conn->c_connid : -1, authcid ? authcid : "<empty>",
870 authzid ? authzid : "<empty>" );
872 Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
873 "authcid=\"%s\" authzid=\"%s\"\n",
874 (long) (conn ? conn->c_connid : -1),
875 authcid ? authcid : "<empty>",
876 authzid ? authzid : "<empty>" );
879 /* Figure out how much data we have for the dn */
880 rc = sasl_getprop( conn->c_sasl_authctx, SASL_REALM, (void **)&realm );
881 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
883 LDAP_LOG( TRANSPORT, ERR,
884 "slap_sasl_authorize: getprop(REALM) failed.\n", 0, 0, 0 );
886 Debug(LDAP_DEBUG_TRACE,
887 "authorize: getprop(REALM) failed!\n", 0,0,0);
889 *errstr = "Could not extract realm";
893 /* Convert the identities to DN's. If no authzid was given, client will
894 be bound as the DN matching their username */
895 rc = slap_sasl_getdn( conn, NULL, (char *)authcid, 0, realm,
896 &authcDN, SLAP_GETDN_AUTHCID );
897 if( rc != LDAP_SUCCESS ) {
898 *errstr = ldap_err2string( rc );
901 if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
903 LDAP_LOG( TRANSPORT, ENTRY,
904 "slap_sasl_authorize: conn %d Using authcDN=%s\n",
905 conn ? conn->c_connid : -1, authcDN.bv_val, 0 );
907 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
908 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
911 conn->c_sasl_dn = authcDN;
914 rc = slap_sasl_getdn( conn, NULL, (char *)authzid, 0, realm,
915 &authzDN, SLAP_GETDN_AUTHZID );
916 if( rc != LDAP_SUCCESS ) {
917 ch_free( authcDN.bv_val );
918 *errstr = ldap_err2string( rc );
922 rc = slap_sasl_authorized(conn->c_sasl_bindop, &authcDN, &authzDN );
923 ch_free( authcDN.bv_val );
926 LDAP_LOG( TRANSPORT, INFO,
927 "slap_sasl_authorize: conn %ld "
928 "proxy authorization disallowed (%d)\n",
929 (long)(conn ? conn->c_connid : -1), rc, 0 );
931 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
932 "proxy authorization disallowed (%d)\n",
933 (long) (conn ? conn->c_connid : -1), rc, 0 );
936 *errstr = "not authorized";
937 ch_free( authzDN.bv_val );
940 conn->c_sasl_dn = authzDN;
944 LDAP_LOG( TRANSPORT, RESULTS,
945 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
946 (long)(conn ? conn->c_connid : -1 ), 0, 0 );
948 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
949 " authorization allowed\n",
950 (long) (conn ? conn->c_connid : -1), 0, 0 );
953 if (conn->c_sasl_bindop) {
954 Statslog( LDAP_DEBUG_STATS,
955 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
956 conn->c_connid, conn->c_sasl_bindop->o_opid,
963 #endif /* SASL_VERSION_MAJOR >= 2 */
966 slap_sasl_err2ldap( int saslerr )
975 rc = LDAP_SASL_BIND_IN_PROGRESS;
984 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
987 rc = LDAP_INVALID_CREDENTIALS;
990 rc = LDAP_INSUFFICIENT_ACCESS;
994 rc = LDAP_INAPPROPRIATE_AUTH;
1005 int slap_sasl_init( void )
1007 #ifdef HAVE_CYRUS_SASL
1009 static sasl_callback_t server_callbacks[] = {
1010 { SASL_CB_LOG, &slap_sasl_log, NULL },
1011 { SASL_CB_LIST_END, NULL, NULL }
1014 #ifdef HAVE_SASL_VERSION
1015 /* stringify the version number, sasl.h doesn't do it for us */
1016 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1017 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1018 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1021 sasl_version( NULL, &rc );
1022 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1023 (rc & 0xffff) < SASL_VERSION_STEP)
1025 char version[sizeof("xxx.xxx.xxxxx")];
1026 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1029 LDAP_LOG( TRANSPORT, INFO,
1030 "slap_sasl_init: SASL library version mismatch:"
1031 " expected " SASL_VERSION_STRING ","
1032 " got %s\n", version, 0, 0 );
1034 Debug( LDAP_DEBUG_ANY,
1035 "slap_sasl_init: SASL library version mismatch:"
1036 " expected " SASL_VERSION_STRING ","
1037 " got %s\n", version, 0, 0 );
1043 /* SASL 2 does its own memory management internally */
1044 #if SASL_VERSION_MAJOR < 2
1053 ldap_pvt_sasl_mutex_new,
1054 ldap_pvt_sasl_mutex_lock,
1055 ldap_pvt_sasl_mutex_unlock,
1056 ldap_pvt_sasl_mutex_dispose );
1058 #if SASL_VERSION_MAJOR >= 2
1059 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1061 sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1063 /* should provide callbacks for logging */
1064 /* server name should be configurable */
1065 rc = sasl_server_init( server_callbacks, "slapd" );
1067 if( rc != SASL_OK ) {
1069 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: init failed.\n", 0, 0, 0 );
1071 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
1074 #if SASL_VERSION_MAJOR < 2
1075 /* A no-op used to make sure we linked with Cyrus 1.5 */
1076 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1083 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: initialized!\n", 0, 0, 0 );
1085 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1089 /* default security properties */
1090 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1091 sasl_secprops.max_ssf = INT_MAX;
1092 sasl_secprops.maxbufsize = 65536;
1093 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1099 int slap_sasl_destroy( void )
1101 #ifdef HAVE_CYRUS_SASL
1104 free( global_host );
1110 int slap_sasl_open( Connection *conn, int reopen )
1112 int sc = LDAP_SUCCESS;
1113 #ifdef HAVE_CYRUS_SASL
1116 sasl_conn_t *ctx = NULL;
1117 sasl_callback_t *session_callbacks;
1119 #if SASL_VERSION_MAJOR >= 2
1120 char *ipremoteport = NULL, *iplocalport = NULL;
1123 assert( conn->c_sasl_authctx == NULL );
1126 assert( conn->c_sasl_extra == NULL );
1129 #if SASL_VERSION_MAJOR >= 2
1130 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1132 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1134 if( session_callbacks == NULL ) {
1136 LDAP_LOG( TRANSPORT, ERR,
1137 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1139 Debug( LDAP_DEBUG_ANY,
1140 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1144 conn->c_sasl_extra = session_callbacks;
1146 session_callbacks[cb=0].id = SASL_CB_LOG;
1147 session_callbacks[cb].proc = &slap_sasl_log;
1148 session_callbacks[cb++].context = conn;
1150 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1151 session_callbacks[cb].proc = &slap_sasl_authorize;
1152 session_callbacks[cb++].context = conn;
1154 #if SASL_VERSION_MAJOR >= 2
1155 session_callbacks[cb].id = SASL_CB_CANON_USER;
1156 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1157 session_callbacks[cb++].context = conn;
1160 session_callbacks[cb].id = SASL_CB_LIST_END;
1161 session_callbacks[cb].proc = NULL;
1162 session_callbacks[cb++].context = NULL;
1164 session_callbacks = conn->c_sasl_extra;
1167 conn->c_sasl_layers = 0;
1169 if( global_host == NULL ) {
1170 global_host = ldap_pvt_get_fqdn( NULL );
1173 /* create new SASL context */
1174 #if SASL_VERSION_MAJOR >= 2
1175 if ( conn->c_sock_name.bv_len != 0 &&
1176 strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
1179 iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
1180 /* Convert IPv6 addresses to address;port syntax. */
1181 p = strrchr( iplocalport, ' ' );
1182 /* Convert IPv4 addresses to address;port syntax. */
1183 if ( p == NULL ) p = strchr( iplocalport, ':' );
1188 if ( conn->c_peer_name.bv_len != 0 &&
1189 strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
1192 ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
1193 /* Convert IPv6 addresses to address;port syntax. */
1194 p = strrchr( ipremoteport, ' ' );
1195 /* Convert IPv4 addresses to address;port syntax. */
1196 if ( p == NULL ) p = strchr( ipremoteport, ':' );
1201 sc = sasl_server_new( "ldap", global_host, global_realm,
1202 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1203 if ( iplocalport != NULL ) {
1204 ch_free( iplocalport );
1206 if ( ipremoteport != NULL ) {
1207 ch_free( ipremoteport );
1210 sc = sasl_server_new( "ldap", global_host, global_realm,
1211 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1214 if( sc != SASL_OK ) {
1216 LDAP_LOG( TRANSPORT, ERR,
1217 "slap_sasl_open: sasl_server_new failed: %d\n", sc, 0, 0 );
1219 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1226 conn->c_sasl_authctx = ctx;
1228 if( sc == SASL_OK ) {
1229 sc = sasl_setprop( ctx,
1230 SASL_SEC_PROPS, &sasl_secprops );
1232 if( sc != SASL_OK ) {
1234 LDAP_LOG( TRANSPORT, ERR,
1235 "slap_sasl_open: sasl_setprop failed: %d \n", sc, 0, 0 );
1237 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1241 slap_sasl_close( conn );
1246 sc = slap_sasl_err2ldap( sc );
1248 #elif defined(SLAP_BUILTIN_SASL)
1249 /* built-in SASL implementation */
1250 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1251 if( ctx == NULL ) return -1;
1253 ctx->sc_external_ssf = 0;
1254 ctx->sc_external_id.bv_len = 0;
1255 ctx->sc_external_id.bv_val = NULL;
1257 conn->c_sasl_authctx = ctx;
1263 int slap_sasl_external(
1266 struct berval *auth_id )
1268 #if SASL_VERSION_MAJOR >= 2
1270 sasl_conn_t *ctx = conn->c_sasl_authctx;
1272 if ( ctx == NULL ) {
1273 return LDAP_UNAVAILABLE;
1276 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1278 if ( sc != SASL_OK ) {
1282 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1283 auth_id ? auth_id->bv_val : NULL );
1285 if ( sc != SASL_OK ) {
1289 #elif defined(HAVE_CYRUS_SASL)
1291 sasl_conn_t *ctx = conn->c_sasl_authctx;
1292 sasl_external_properties_t extprops;
1294 if ( ctx == NULL ) {
1295 return LDAP_UNAVAILABLE;
1298 memset( &extprops, '\0', sizeof(extprops) );
1300 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1302 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1303 (void *) &extprops );
1305 if ( sc != SASL_OK ) {
1308 #elif defined(SLAP_BUILTIN_SASL)
1309 /* built-in SASL implementation */
1310 SASL_CTX *ctx = conn->c_sasl_authctx;
1311 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1313 ctx->sc_external_ssf = ssf;
1315 ctx->sc_external_id = *auth_id;
1316 auth_id->bv_len = 0;
1317 auth_id->bv_val = NULL;
1319 ctx->sc_external_id.bv_len = 0;
1320 ctx->sc_external_id.bv_val = NULL;
1324 return LDAP_SUCCESS;
1327 int slap_sasl_reset( Connection *conn )
1329 return LDAP_SUCCESS;
1332 char ** slap_sasl_mechs( Connection *conn )
1334 char **mechs = NULL;
1336 #ifdef HAVE_CYRUS_SASL
1337 sasl_conn_t *ctx = conn->c_sasl_authctx;
1339 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1343 SASL_CONST char *mechstr;
1345 sc = sasl_listmech( ctx,
1346 NULL, NULL, ",", NULL,
1347 &mechstr, NULL, NULL );
1349 if( sc != SASL_OK ) {
1351 LDAP_LOG( TRANSPORT, ERR,
1352 "slap_sasl_mechs: sasl_listmech failed: %d\n", sc, 0, 0 );
1354 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1361 mechs = ldap_str2charray( mechstr, "," );
1363 #if SASL_VERSION_MAJOR < 2
1367 #elif defined(SLAP_BUILTIN_SASL)
1368 /* builtin SASL implementation */
1369 SASL_CTX *ctx = conn->c_sasl_authctx;
1370 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1371 /* should check ssf */
1372 mechs = ldap_str2charray( "EXTERNAL", "," );
1379 int slap_sasl_close( Connection *conn )
1381 #ifdef HAVE_CYRUS_SASL
1382 sasl_conn_t *ctx = conn->c_sasl_authctx;
1385 sasl_dispose( &ctx );
1387 if ( conn->c_sasl_sockctx &&
1388 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1390 ctx = conn->c_sasl_sockctx;
1391 sasl_dispose( &ctx );
1394 conn->c_sasl_authctx = NULL;
1395 conn->c_sasl_sockctx = NULL;
1396 conn->c_sasl_done = 0;
1398 free( conn->c_sasl_extra );
1399 conn->c_sasl_extra = NULL;
1401 #elif defined(SLAP_BUILTIN_SASL)
1402 SASL_CTX *ctx = conn->c_sasl_authctx;
1404 if( ctx->sc_external_id.bv_val ) {
1405 free( ctx->sc_external_id.bv_val );
1406 ctx->sc_external_id.bv_val = NULL;
1409 conn->c_sasl_authctx = NULL;
1413 return LDAP_SUCCESS;
1416 int slap_sasl_bind( Operation *op, SlapReply *rs )
1418 #ifdef HAVE_CYRUS_SASL
1419 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1420 struct berval response;
1421 unsigned reslen = 0;
1425 LDAP_LOG( TRANSPORT, ENTRY,
1426 "sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1427 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1428 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1429 op->o_conn->c_sasl_bind_mech.bv_val,
1430 op->orb_cred.bv_len );
1432 Debug(LDAP_DEBUG_ARGS,
1433 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1434 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1435 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1436 op->o_conn->c_sasl_bind_mech.bv_val,
1437 op->orb_cred.bv_len );
1441 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1442 "SASL unavailable on this session" );
1446 #if SASL_VERSION_MAJOR >= 2
1447 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1448 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1449 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1450 sasl_server_step( ctx, cred, clen, resp, rlen )
1452 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1453 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1454 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1455 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1458 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1459 /* If we already authenticated once, must use a new context */
1460 if ( op->o_conn->c_sasl_done ) {
1462 const char *authid = NULL;
1463 #if SASL_VERSION_MAJOR >= 2
1464 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1465 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1466 if ( authid ) authid = ch_strdup( authid );
1468 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1469 sasl_dispose( &ctx );
1471 op->o_conn->c_sasl_authctx = NULL;
1473 slap_sasl_open( op->o_conn, 1 );
1474 ctx = op->o_conn->c_sasl_authctx;
1475 #if SASL_VERSION_MAJOR >= 2
1477 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1478 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1479 ch_free( (char *)authid );
1484 op->o_conn->c_sasl_bind_mech.bv_val,
1485 op->orb_cred.bv_val, op->orb_cred.bv_len,
1486 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1490 op->orb_cred.bv_val, op->orb_cred.bv_len,
1491 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1494 response.bv_len = reslen;
1496 if ( sc == SASL_OK ) {
1497 sasl_ssf_t *ssf = NULL;
1499 op->orb_edn = op->o_conn->c_sasl_dn;
1500 op->o_conn->c_sasl_dn.bv_val = NULL;
1501 op->o_conn->c_sasl_dn.bv_len = 0;
1502 op->o_conn->c_sasl_done = 1;
1504 rs->sr_err = LDAP_SUCCESS;
1506 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1507 op->orb_ssf = ssf ? *ssf : 0;
1511 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1512 op->o_conn->c_sasl_layers++;
1514 /* If there's an old layer, set sockctx to NULL to
1515 * tell connection_read() to wait for us to finish.
1516 * Otherwise there is a race condition: we have to
1517 * send the Bind response using the old security
1518 * context and then remove it before reading any
1521 if ( op->o_conn->c_sasl_sockctx ) {
1522 ctx = op->o_conn->c_sasl_sockctx;
1523 op->o_conn->c_sasl_sockctx = NULL;
1525 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1527 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1530 /* Must send response using old security layer */
1531 if (response.bv_len) rs->sr_sasldata = &response;
1532 send_ldap_sasl( op, rs );
1534 /* Now dispose of the old security layer.
1537 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1538 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1539 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1540 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1541 sasl_dispose( &ctx );
1543 } else if ( sc == SASL_CONTINUE ) {
1544 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1545 rs->sr_sasldata = &response;
1546 send_ldap_sasl( op, rs );
1549 #if SASL_VERSION_MAJOR >= 2
1550 rs->sr_text = sasl_errdetail( ctx );
1552 rs->sr_err = slap_sasl_err2ldap( sc ),
1553 send_ldap_result( op, rs );
1556 #if SASL_VERSION_MAJOR < 2
1557 if( response.bv_len ) {
1558 ch_free( response.bv_val );
1563 LDAP_LOG( TRANSPORT, RESULTS, "slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0 );
1565 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1568 #elif defined(SLAP_BUILTIN_SASL)
1569 /* built-in SASL implementation */
1570 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1572 if ( ctx == NULL ) {
1573 send_ldap_error( op, rs, LDAP_OTHER,
1574 "Internal SASL Error" );
1576 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1579 if( op->orb_cred.bv_len ) {
1580 rs->sr_text = "proxy authorization not support";
1581 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1582 send_ldap_result( op, rs );
1585 op->orb_edn = ctx->sc_external_id;
1586 rs->sr_err = LDAP_SUCCESS;
1587 rs->sr_sasldata = NULL;
1588 send_ldap_sasl( op, rs );
1592 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1593 "requested SASL mechanism not supported" );
1596 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1597 "SASL not supported" );
1603 char* slap_sasl_secprops( const char *in )
1605 #ifdef HAVE_CYRUS_SASL
1606 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1608 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1610 return "SASL not supported";
1614 #ifdef HAVE_CYRUS_SASL
1616 slap_sasl_setpass( Operation *op, SlapReply *rs )
1618 struct berval id = { 0, NULL }; /* needs to come from connection */
1619 struct berval new = { 0, NULL };
1620 struct berval old = { 0, NULL };
1622 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1624 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1625 (SASL_CONST void **)&id.bv_val );
1627 if( rs->sr_err != SASL_OK ) {
1628 rs->sr_text = "unable to retrieve SASL username";
1629 rs->sr_err = LDAP_OTHER;
1634 LDAP_LOG( BACKEND, ENTRY,
1635 "slap_sasl_setpass: \"%s\"\n",
1636 id.bv_val ? id.bv_val : "", 0, 0);
1638 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1639 id.bv_val ? id.bv_val : "", 0, 0 );
1642 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1643 NULL, &old, &new, &rs->sr_text );
1645 if( rs->sr_err != LDAP_SUCCESS ) {
1649 if( new.bv_len == 0 ) {
1650 slap_passwd_generate(&new);
1652 if( new.bv_len == 0 ) {
1653 rs->sr_text = "password generation failed.";
1654 rs->sr_err = LDAP_OTHER;
1658 rs->sr_rspdata = slap_passwd_return( &new );
1661 #if SASL_VERSION_MAJOR < 2
1662 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1663 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1665 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1666 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1667 if( rs->sr_err != SASL_OK ) {
1668 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1671 switch(rs->sr_err) {
1673 rs->sr_err = LDAP_SUCCESS;
1683 rs->sr_err = LDAP_OTHER;
1689 #endif /* HAVE_CYRUS_SASL */
1691 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1692 * string returned in *dn is in its own allocated memory, and must be free'd
1693 * by the calling process. -Mark Adamson, Carnegie Mellon
1695 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1696 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1703 int slap_sasl_getdn( Connection *conn, Operation *op, char *id, int len,
1704 char *user_realm, struct berval *dn, int flags )
1706 int rc, is_dn = SET_NONE, do_norm = 1;
1707 struct berval dn2, *mech;
1712 LDAP_LOG( TRANSPORT, ENTRY,
1713 "slap_sasl_getdn: conn %d id=%s [len=%d]\n",
1714 conn->c_connid, id ? (*id ? id : "<empty>") : "NULL", len );
1716 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s [len=%d]\n",
1717 id ? ( *id ? id : "<empty>" ) : "NULL", len, 0 );
1721 op = conn->c_sasl_bindop;
1728 if ( len == 0 ) len = strlen( id );
1730 /* Blatantly anonymous ID */
1731 if ( len == sizeof("anonymous") - 1 &&
1732 !strcasecmp( id, "anonymous" ) ) {
1733 return( LDAP_SUCCESS );
1739 if ( conn->c_sasl_bind_mech.bv_len ) {
1740 mech = &conn->c_sasl_bind_mech;
1742 mech = &conn->c_authmech;
1745 /* An authcID needs to be converted to authzID form. Set the
1746 * values directly into *dn; they will be normalized later. (and
1747 * normalizing always makes a new copy.) An ID from a TLS certificate
1748 * is already normalized, so copy it and skip normalization.
1750 if( flags & SLAP_GETDN_AUTHCID ) {
1751 if( bvmatch( mech, &ext_bv )) {
1752 /* EXTERNAL DNs are already normalized */
1755 ber_str2bv_x( id, len, 1, dn, op->o_tmpmemctx );
1758 /* convert to u:<username> form */
1764 if( is_dn == SET_NONE ) {
1765 if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
1769 } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
1776 /* No other possibilities from here */
1777 if( is_dn == SET_NONE ) {
1780 return( LDAP_INAPPROPRIATE_AUTH );
1783 /* Username strings */
1784 if( is_dn == SET_U ) {
1786 struct berval realm = { 0, NULL }, c1 = *dn;
1788 len = dn->bv_len + sizeof("uid=")-1 + sizeof(",cn=auth")-1;
1790 if( user_realm && *user_realm ) {
1791 realm.bv_val = user_realm;
1792 realm.bv_len = strlen( user_realm );
1793 len += realm.bv_len + sizeof(",cn=") - 1;
1796 if( mech->bv_len ) {
1797 len += mech->bv_len + sizeof(",cn=")-1;
1800 /* Build the new dn */
1801 dn->bv_val = sl_malloc( len+1, op->o_tmpmemctx );
1802 if( dn->bv_val == NULL ) {
1804 LDAP_LOG( TRANSPORT, ERR,
1805 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1807 Debug( LDAP_DEBUG_ANY,
1808 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1812 p = lutil_strcopy( dn->bv_val, "uid=" );
1813 p = lutil_strncopy( p, c1.bv_val, c1.bv_len );
1815 if( realm.bv_len ) {
1816 p = lutil_strcopy( p, ",cn=" );
1817 p = lutil_strncopy( p, realm.bv_val, realm.bv_len );
1820 if( mech->bv_len ) {
1821 p = lutil_strcopy( p, ",cn=" );
1822 p = lutil_strcopy( p, mech->bv_val );
1824 p = lutil_strcopy( p, ",cn=auth" );
1825 dn->bv_len = p - dn->bv_val;
1828 LDAP_LOG( TRANSPORT, ENTRY,
1829 "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val, 0, 0 );
1831 Debug( LDAP_DEBUG_TRACE, "slap_sasl_getdn: u:id converted to %s\n", dn->bv_val,0,0 );
1835 /* Dup the DN in any case, so we don't risk
1836 * leaks or dangling pointers later,
1837 * and the DN value is '\0' terminated */
1838 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
1839 dn->bv_val = dn2.bv_val;
1842 /* All strings are in DN form now. Normalize if needed. */
1844 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
1846 /* User DNs were constructed above and must be freed now */
1847 sl_free( dn->bv_val, op->o_tmpmemctx );
1849 if ( rc != LDAP_SUCCESS ) {
1857 /* Run thru regexp */
1858 slap_sasl2dn( op, dn, &dn2, flags );
1860 sl_free( dn->bv_val, op->o_tmpmemctx );
1863 LDAP_LOG( TRANSPORT, ENTRY,
1864 "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val, 0, 0 );
1866 Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
1871 return( LDAP_SUCCESS );