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;
486 op.ors_tlimit = SLAP_NO_LIMIT;
488 op.ors_filter = &generic_filter;
489 op.ors_filterstr = generic_filterstr;
491 op.o_bd->be_search( &op, &rs );
496 #if SASL_VERSION_FULL >= 0x020110
500 sasl_server_params_t *sparams,
501 struct propctx *prctx,
506 SlapReply rs = {REP_RESULT};
508 Connection *conn = NULL;
509 const struct propval *pr;
510 Modifications *modlist = NULL, **modtail = &modlist, *mod;
511 slap_callback cb = { NULL, slap_null_cb, NULL, NULL };
512 char textbuf[SLAP_TEXT_BUFLEN];
514 size_t textlen = sizeof(textbuf);
516 /* just checking if we are enabled */
517 if (!prctx) return SASL_OK;
519 if (!sparams || !user) return SASL_BADPARAM;
521 pr = sparams->utils->prop_get( sparams->propctx );
523 /* Find our DN and conn first */
524 for( i = 0; pr[i].name; i++ ) {
525 if ( pr[i].name[0] == '*' ) {
526 if ( !strcmp( pr[i].name, slap_propnames[PROP_CONN] ) ) {
527 if ( pr[i].values && pr[i].values[0] )
528 AC_MEMCPY( &conn, pr[i].values[0], sizeof( conn ) );
531 if ( !strcmp( pr[i].name, slap_propnames[PROP_AUTHC] ) ) {
532 if ( pr[i].values && pr[i].values[0] ) {
533 AC_MEMCPY( &op.o_req_ndn, pr[i].values[0], sizeof( struct berval ) );
538 if (!conn || !op.o_req_ndn.bv_val) return SASL_BADPARAM;
540 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
542 if ( !op.o_bd || !op.o_bd->be_modify ) return SASL_FAIL;
544 pr = sparams->utils->prop_get( prctx );
545 if (!pr) return SASL_BADPARAM;
547 for (i=0; pr[i].name; i++);
548 if (!i) return SASL_BADPARAM;
550 for (i=0; pr[i].name; i++) {
551 mod = (Modifications *)ch_malloc( sizeof(Modifications) );
552 mod->sml_op = LDAP_MOD_REPLACE;
553 ber_str2bv( pr[i].name, 0, 0, &mod->sml_type );
554 mod->sml_values = (struct berval *)ch_malloc( (pr[i].nvalues + 1) *
555 sizeof(struct berval));
556 for (j=0; j<pr[i].nvalues; j++) {
557 ber_str2bv( pr[i].values[j], 0, 1, &mod->sml_values[j]);
559 mod->sml_values[j].bv_val = NULL;
560 mod->sml_values[j].bv_len = 0;
561 mod->sml_nvalues = NULL;
562 mod->sml_desc = NULL;
564 modtail = &mod->sml_next;
568 rc = slap_mods_check( modlist, 0, &text, textbuf, textlen, NULL );
570 if ( rc == LDAP_SUCCESS ) {
571 rc = slap_mods_opattrs( &op, modlist, modtail, &text, textbuf,
575 if ( rc == LDAP_SUCCESS ) {
576 op.o_tag = LDAP_REQ_MODIFY;
577 op.o_protocol = LDAP_VERSION3;
578 op.o_ndn = op.o_req_ndn;
580 op.o_time = slap_get_time();
581 op.o_do_not_cache = 1;
582 op.o_is_auth_check = 1;
583 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
584 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
585 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
587 op.o_connid = conn->c_connid;
588 op.o_req_dn = op.o_req_ndn;
589 op.orm_modlist = modlist;
591 rc = op.o_bd->be_modify( &op, &rs );
593 slap_mods_free( modlist );
594 return rc ? SASL_FAIL : SASL_OK;
596 #endif /* SASL_VERSION_FULL >= 2.1.16 */
598 static sasl_auxprop_plug_t slap_auxprop_plugin = {
601 NULL, /* glob_context */
602 NULL, /* auxprop_free */
605 #if SASL_VERSION_FULL >= 0x020110
606 slap_auxprop_store /* the declaration of this member changed
607 * in cyrus SASL from 2.1.15 to 2.1.16 */
615 const sasl_utils_t *utils,
618 sasl_auxprop_plug_t **plug,
619 const char *plugname)
621 if ( !out_version || !plug ) return SASL_BADPARAM;
623 if ( max_version < SASL_AUXPROP_PLUG_VERSION ) return SASL_BADVERS;
625 *out_version = SASL_AUXPROP_PLUG_VERSION;
626 *plug = &slap_auxprop_plugin;
630 /* Convert a SASL authcid or authzid into a DN. Store the DN in an
631 * auxiliary property, so that we can refer to it in sasl_authorize
632 * without interfering with anything else. Also, the SASL username
633 * buffer is constrained to 256 characters, and our DNs could be
634 * much longer (SLAP_LDAPDN_MAXLEN, currently set to 8192)
637 slap_sasl_canonicalize(
643 const char *user_realm,
648 Connection *conn = (Connection *)context;
649 struct propctx *props = sasl_auxprop_getctx( sconn );
650 struct propval auxvals[3];
653 const char *names[2];
658 LDAP_LOG( TRANSPORT, ENTRY,
659 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
660 conn ? conn->c_connid : -1,
661 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
662 in ? in : "<empty>");
664 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
665 conn ? conn->c_connid : -1,
666 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
667 in ? in : "<empty>");
670 /* If name is too big, just truncate. We don't care, we're
671 * using DNs, not the usernames.
673 if ( inlen > out_max )
676 /* This is a Simple Bind using SPASSWD. That means the in-directory
677 * userPassword of the Binding user already points at SASL, so it
678 * cannot be used to actually satisfy a password comparison. Just
679 * ignore it, some other mech will process it.
681 if ( !conn->c_sasl_bindop ||
682 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) goto done;
684 /* See if we need to add request, can only do it once */
685 prop_getnames( props, slap_propnames, auxvals );
686 if ( !auxvals[0].name )
687 prop_request( props, slap_propnames );
689 if ( flags & SASL_CU_AUTHID )
694 /* Need to store the Connection for auxprop_lookup */
695 if ( !auxvals[PROP_CONN].values ) {
696 names[0] = slap_propnames[PROP_CONN];
698 prop_set( props, names[0], (char *)&conn, sizeof( conn ) );
701 /* Already been here? */
702 if ( auxvals[which].values )
705 /* Normally we require an authzID to have a u: or dn: prefix.
706 * However, SASL frequently gives us an authzID that is just
707 * an exact copy of the authcID, without a prefix. We need to
708 * detect and allow this condition. If SASL calls canonicalize
709 * with SASL_CU_AUTHID|SASL_CU_AUTHZID this is a no-brainer.
710 * But if it's broken into two calls, we need to remember the
711 * authcID so that we can compare the authzID later. We store
712 * the authcID temporarily in conn->c_sasl_dn. We necessarily
713 * finish Canonicalizing before Authorizing, so there is no
714 * conflict with slap_sasl_authorize's use of this temp var.
716 * The SASL EXTERNAL mech is backwards from all the other mechs,
717 * it does authzID before the authcID. If we see that authzID
718 * has already been done, don't do anything special with authcID.
720 if ( flags == SASL_CU_AUTHID && !auxvals[PROP_AUTHZ].values ) {
721 conn->c_sasl_dn.bv_val = (char *) in;
722 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
723 rc = strcmp( in, conn->c_sasl_dn.bv_val );
724 conn->c_sasl_dn.bv_val = NULL;
725 /* They were equal, no work needed */
726 if ( !rc ) goto done;
729 rc = slap_sasl_getdn( conn, NULL, (char *)in, inlen, (char *)user_realm, &dn,
730 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
731 if ( rc != LDAP_SUCCESS ) {
732 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
736 names[0] = slap_propnames[which];
739 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
742 LDAP_LOG( TRANSPORT, ENTRY,
743 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
744 conn ? conn->c_connid : -1, names[0]+1,
745 dn.bv_val ? dn.bv_val : "<EMPTY>" );
747 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
748 conn ? conn->c_connid : -1, names[0]+1,
749 dn.bv_val ? dn.bv_val : "<EMPTY>" );
753 AC_MEMCPY( out, in, inlen );
765 char *requested_user,
769 const char *def_realm,
771 struct propctx *props)
773 Connection *conn = (Connection *)context;
774 struct propval auxvals[3];
775 struct berval authcDN, authzDN;
778 /* Simple Binds don't support proxy authorization, ignore it */
779 if ( !conn->c_sasl_bindop ||
780 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) return SASL_OK;
783 LDAP_LOG( TRANSPORT, ENTRY,
784 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
785 conn ? conn->c_connid : -1, auth_identity, requested_user);
787 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
788 "authcid=\"%s\" authzid=\"%s\"\n",
789 conn ? conn->c_connid : -1, auth_identity, requested_user );
791 if ( conn->c_sasl_dn.bv_val ) {
792 ch_free( conn->c_sasl_dn.bv_val );
793 conn->c_sasl_dn.bv_val = NULL;
794 conn->c_sasl_dn.bv_len = 0;
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;
870 if ( conn->c_sasl_dn.bv_val ) {
871 ch_free( conn->c_sasl_dn.bv_val );
872 conn->c_sasl_dn.bv_val = NULL;
873 conn->c_sasl_dn.bv_len = 0;
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 rc = slap_sasl_getdn( conn, NULL, (char *)authcid, 0, realm,
906 &authcDN, SLAP_GETDN_AUTHCID );
907 if( rc != LDAP_SUCCESS ) {
908 *errstr = ldap_err2string( rc );
911 if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
913 LDAP_LOG( TRANSPORT, ENTRY,
914 "slap_sasl_authorize: conn %d Using authcDN=%s\n",
915 conn ? conn->c_connid : -1, authcDN.bv_val, 0 );
917 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
918 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
921 conn->c_sasl_dn = authcDN;
924 rc = slap_sasl_getdn( conn, NULL, (char *)authzid, 0, realm,
925 &authzDN, SLAP_GETDN_AUTHZID );
926 if( rc != LDAP_SUCCESS ) {
927 ch_free( authcDN.bv_val );
928 *errstr = ldap_err2string( rc );
932 rc = slap_sasl_authorized(conn->c_sasl_bindop, &authcDN, &authzDN );
933 ch_free( authcDN.bv_val );
936 LDAP_LOG( TRANSPORT, INFO,
937 "slap_sasl_authorize: conn %ld "
938 "proxy authorization disallowed (%d)\n",
939 (long)(conn ? conn->c_connid : -1), rc, 0 );
941 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
942 "proxy authorization disallowed (%d)\n",
943 (long) (conn ? conn->c_connid : -1), rc, 0 );
946 *errstr = "not authorized";
947 ch_free( authzDN.bv_val );
950 conn->c_sasl_dn = authzDN;
954 LDAP_LOG( TRANSPORT, RESULTS,
955 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
956 (long)(conn ? conn->c_connid : -1 ), 0, 0 );
958 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
959 " authorization allowed\n",
960 (long) (conn ? conn->c_connid : -1), 0, 0 );
963 if (conn->c_sasl_bindop) {
964 Statslog( LDAP_DEBUG_STATS,
965 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
966 conn->c_connid, conn->c_sasl_bindop->o_opid,
973 #endif /* SASL_VERSION_MAJOR >= 2 */
976 slap_sasl_err2ldap( int saslerr )
985 rc = LDAP_SASL_BIND_IN_PROGRESS;
994 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
997 rc = LDAP_INVALID_CREDENTIALS;
1000 rc = LDAP_INSUFFICIENT_ACCESS;
1004 rc = LDAP_INAPPROPRIATE_AUTH;
1015 int slap_sasl_init( void )
1017 #ifdef HAVE_CYRUS_SASL
1019 static sasl_callback_t server_callbacks[] = {
1020 { SASL_CB_LOG, &slap_sasl_log, NULL },
1021 { SASL_CB_LIST_END, NULL, NULL }
1024 #ifdef HAVE_SASL_VERSION
1025 /* stringify the version number, sasl.h doesn't do it for us */
1026 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1027 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1028 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1031 sasl_version( NULL, &rc );
1032 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1033 (rc & 0xffff) < SASL_VERSION_STEP)
1035 char version[sizeof("xxx.xxx.xxxxx")];
1036 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1039 LDAP_LOG( TRANSPORT, INFO,
1040 "slap_sasl_init: SASL library version mismatch:"
1041 " expected " SASL_VERSION_STRING ","
1042 " got %s\n", version, 0, 0 );
1044 Debug( LDAP_DEBUG_ANY,
1045 "slap_sasl_init: SASL library version mismatch:"
1046 " expected " SASL_VERSION_STRING ","
1047 " got %s\n", version, 0, 0 );
1053 /* SASL 2 does its own memory management internally */
1054 #if SASL_VERSION_MAJOR < 2
1063 ldap_pvt_sasl_mutex_new,
1064 ldap_pvt_sasl_mutex_lock,
1065 ldap_pvt_sasl_mutex_unlock,
1066 ldap_pvt_sasl_mutex_dispose );
1068 #if SASL_VERSION_MAJOR >= 2
1069 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1071 sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1073 /* should provide callbacks for logging */
1074 /* server name should be configurable */
1075 rc = sasl_server_init( server_callbacks, "slapd" );
1077 if( rc != SASL_OK ) {
1079 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: init failed.\n", 0, 0, 0 );
1081 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
1084 #if SASL_VERSION_MAJOR < 2
1085 /* A no-op used to make sure we linked with Cyrus 1.5 */
1086 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1093 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: initialized!\n", 0, 0, 0 );
1095 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1099 /* default security properties */
1100 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1101 sasl_secprops.max_ssf = INT_MAX;
1102 sasl_secprops.maxbufsize = 65536;
1103 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1109 int slap_sasl_destroy( void )
1111 #ifdef HAVE_CYRUS_SASL
1114 free( global_host );
1120 int slap_sasl_open( Connection *conn, int reopen )
1122 int sc = LDAP_SUCCESS;
1123 #ifdef HAVE_CYRUS_SASL
1126 sasl_conn_t *ctx = NULL;
1127 sasl_callback_t *session_callbacks;
1129 #if SASL_VERSION_MAJOR >= 2
1130 char *ipremoteport = NULL, *iplocalport = NULL;
1133 assert( conn->c_sasl_authctx == NULL );
1136 assert( conn->c_sasl_extra == NULL );
1139 #if SASL_VERSION_MAJOR >= 2
1140 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1142 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1144 if( session_callbacks == NULL ) {
1146 LDAP_LOG( TRANSPORT, ERR,
1147 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1149 Debug( LDAP_DEBUG_ANY,
1150 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1154 conn->c_sasl_extra = session_callbacks;
1156 session_callbacks[cb=0].id = SASL_CB_LOG;
1157 session_callbacks[cb].proc = &slap_sasl_log;
1158 session_callbacks[cb++].context = conn;
1160 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1161 session_callbacks[cb].proc = &slap_sasl_authorize;
1162 session_callbacks[cb++].context = conn;
1164 #if SASL_VERSION_MAJOR >= 2
1165 session_callbacks[cb].id = SASL_CB_CANON_USER;
1166 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1167 session_callbacks[cb++].context = conn;
1170 session_callbacks[cb].id = SASL_CB_LIST_END;
1171 session_callbacks[cb].proc = NULL;
1172 session_callbacks[cb++].context = NULL;
1174 session_callbacks = conn->c_sasl_extra;
1177 conn->c_sasl_layers = 0;
1179 if( global_host == NULL ) {
1180 global_host = ldap_pvt_get_fqdn( NULL );
1183 /* create new SASL context */
1184 #if SASL_VERSION_MAJOR >= 2
1185 if ( conn->c_sock_name.bv_len != 0 &&
1186 strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
1189 iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
1190 /* Convert IPv6 addresses to address;port syntax. */
1191 p = strrchr( iplocalport, ' ' );
1192 /* Convert IPv4 addresses to address;port syntax. */
1193 if ( p == NULL ) p = strchr( iplocalport, ':' );
1198 if ( conn->c_peer_name.bv_len != 0 &&
1199 strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
1202 ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
1203 /* Convert IPv6 addresses to address;port syntax. */
1204 p = strrchr( ipremoteport, ' ' );
1205 /* Convert IPv4 addresses to address;port syntax. */
1206 if ( p == NULL ) p = strchr( ipremoteport, ':' );
1211 sc = sasl_server_new( "ldap", global_host, global_realm,
1212 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1213 if ( iplocalport != NULL ) {
1214 ch_free( iplocalport );
1216 if ( ipremoteport != NULL ) {
1217 ch_free( ipremoteport );
1220 sc = sasl_server_new( "ldap", global_host, global_realm,
1221 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1224 if( sc != SASL_OK ) {
1226 LDAP_LOG( TRANSPORT, ERR,
1227 "slap_sasl_open: sasl_server_new failed: %d\n", sc, 0, 0 );
1229 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1236 conn->c_sasl_authctx = ctx;
1238 if( sc == SASL_OK ) {
1239 sc = sasl_setprop( ctx,
1240 SASL_SEC_PROPS, &sasl_secprops );
1242 if( sc != SASL_OK ) {
1244 LDAP_LOG( TRANSPORT, ERR,
1245 "slap_sasl_open: sasl_setprop failed: %d \n", sc, 0, 0 );
1247 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1251 slap_sasl_close( conn );
1256 sc = slap_sasl_err2ldap( sc );
1258 #elif defined(SLAP_BUILTIN_SASL)
1259 /* built-in SASL implementation */
1260 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1261 if( ctx == NULL ) return -1;
1263 ctx->sc_external_ssf = 0;
1264 ctx->sc_external_id.bv_len = 0;
1265 ctx->sc_external_id.bv_val = NULL;
1267 conn->c_sasl_authctx = ctx;
1273 int slap_sasl_external(
1276 struct berval *auth_id )
1278 #if SASL_VERSION_MAJOR >= 2
1280 sasl_conn_t *ctx = conn->c_sasl_authctx;
1282 if ( ctx == NULL ) {
1283 return LDAP_UNAVAILABLE;
1286 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1288 if ( sc != SASL_OK ) {
1292 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1293 auth_id ? auth_id->bv_val : NULL );
1295 if ( sc != SASL_OK ) {
1299 #elif defined(HAVE_CYRUS_SASL)
1301 sasl_conn_t *ctx = conn->c_sasl_authctx;
1302 sasl_external_properties_t extprops;
1304 if ( ctx == NULL ) {
1305 return LDAP_UNAVAILABLE;
1308 memset( &extprops, '\0', sizeof(extprops) );
1310 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1312 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1313 (void *) &extprops );
1315 if ( sc != SASL_OK ) {
1318 #elif defined(SLAP_BUILTIN_SASL)
1319 /* built-in SASL implementation */
1320 SASL_CTX *ctx = conn->c_sasl_authctx;
1321 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1323 ctx->sc_external_ssf = ssf;
1325 ctx->sc_external_id = *auth_id;
1326 auth_id->bv_len = 0;
1327 auth_id->bv_val = NULL;
1329 ctx->sc_external_id.bv_len = 0;
1330 ctx->sc_external_id.bv_val = NULL;
1334 return LDAP_SUCCESS;
1337 int slap_sasl_reset( Connection *conn )
1339 return LDAP_SUCCESS;
1342 char ** slap_sasl_mechs( Connection *conn )
1344 char **mechs = NULL;
1346 #ifdef HAVE_CYRUS_SASL
1347 sasl_conn_t *ctx = conn->c_sasl_authctx;
1349 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1353 SASL_CONST char *mechstr;
1355 sc = sasl_listmech( ctx,
1356 NULL, NULL, ",", NULL,
1357 &mechstr, NULL, NULL );
1359 if( sc != SASL_OK ) {
1361 LDAP_LOG( TRANSPORT, ERR,
1362 "slap_sasl_mechs: sasl_listmech failed: %d\n", sc, 0, 0 );
1364 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1371 mechs = ldap_str2charray( mechstr, "," );
1373 #if SASL_VERSION_MAJOR < 2
1377 #elif defined(SLAP_BUILTIN_SASL)
1378 /* builtin SASL implementation */
1379 SASL_CTX *ctx = conn->c_sasl_authctx;
1380 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1381 /* should check ssf */
1382 mechs = ldap_str2charray( "EXTERNAL", "," );
1389 int slap_sasl_close( Connection *conn )
1391 #ifdef HAVE_CYRUS_SASL
1392 sasl_conn_t *ctx = conn->c_sasl_authctx;
1395 sasl_dispose( &ctx );
1397 if ( conn->c_sasl_sockctx &&
1398 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1400 ctx = conn->c_sasl_sockctx;
1401 sasl_dispose( &ctx );
1404 conn->c_sasl_authctx = NULL;
1405 conn->c_sasl_sockctx = NULL;
1406 conn->c_sasl_done = 0;
1408 free( conn->c_sasl_extra );
1409 conn->c_sasl_extra = NULL;
1411 #elif defined(SLAP_BUILTIN_SASL)
1412 SASL_CTX *ctx = conn->c_sasl_authctx;
1414 if( ctx->sc_external_id.bv_val ) {
1415 free( ctx->sc_external_id.bv_val );
1416 ctx->sc_external_id.bv_val = NULL;
1419 conn->c_sasl_authctx = NULL;
1423 return LDAP_SUCCESS;
1426 int slap_sasl_bind( Operation *op, SlapReply *rs )
1428 #ifdef HAVE_CYRUS_SASL
1429 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1430 struct berval response;
1431 unsigned reslen = 0;
1435 LDAP_LOG( TRANSPORT, ENTRY,
1436 "sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1437 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1438 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1439 op->o_conn->c_sasl_bind_mech.bv_val,
1440 op->orb_cred.bv_len );
1442 Debug(LDAP_DEBUG_ARGS,
1443 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1444 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1445 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1446 op->o_conn->c_sasl_bind_mech.bv_val,
1447 op->orb_cred.bv_len );
1451 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1452 "SASL unavailable on this session" );
1456 #if SASL_VERSION_MAJOR >= 2
1457 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1458 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1459 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1460 sasl_server_step( ctx, cred, clen, resp, rlen )
1462 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1463 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1464 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1465 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1468 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1469 /* If we already authenticated once, must use a new context */
1470 if ( op->o_conn->c_sasl_done ) {
1472 const char *authid = NULL;
1473 #if SASL_VERSION_MAJOR >= 2
1474 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1475 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1476 if ( authid ) authid = ch_strdup( authid );
1478 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1479 sasl_dispose( &ctx );
1481 op->o_conn->c_sasl_authctx = NULL;
1483 slap_sasl_open( op->o_conn, 1 );
1484 ctx = op->o_conn->c_sasl_authctx;
1485 #if SASL_VERSION_MAJOR >= 2
1487 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1488 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1489 ch_free( (char *)authid );
1494 op->o_conn->c_sasl_bind_mech.bv_val,
1495 op->orb_cred.bv_val, op->orb_cred.bv_len,
1496 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1500 op->orb_cred.bv_val, op->orb_cred.bv_len,
1501 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1504 response.bv_len = reslen;
1506 if ( sc == SASL_OK ) {
1507 sasl_ssf_t *ssf = NULL;
1509 op->orb_edn = op->o_conn->c_sasl_dn;
1510 op->o_conn->c_sasl_dn.bv_val = NULL;
1511 op->o_conn->c_sasl_dn.bv_len = 0;
1512 op->o_conn->c_sasl_done = 1;
1514 rs->sr_err = LDAP_SUCCESS;
1516 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1517 op->orb_ssf = ssf ? *ssf : 0;
1521 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1522 op->o_conn->c_sasl_layers++;
1524 /* If there's an old layer, set sockctx to NULL to
1525 * tell connection_read() to wait for us to finish.
1526 * Otherwise there is a race condition: we have to
1527 * send the Bind response using the old security
1528 * context and then remove it before reading any
1531 if ( op->o_conn->c_sasl_sockctx ) {
1532 ctx = op->o_conn->c_sasl_sockctx;
1533 op->o_conn->c_sasl_sockctx = NULL;
1535 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1537 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1540 /* Must send response using old security layer */
1541 if (response.bv_len) rs->sr_sasldata = &response;
1542 send_ldap_sasl( op, rs );
1544 /* Now dispose of the old security layer.
1547 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1548 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1549 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1550 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1551 sasl_dispose( &ctx );
1553 } else if ( sc == SASL_CONTINUE ) {
1554 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1555 rs->sr_sasldata = &response;
1556 send_ldap_sasl( op, rs );
1559 #if SASL_VERSION_MAJOR >= 2
1560 rs->sr_text = sasl_errdetail( ctx );
1562 rs->sr_err = slap_sasl_err2ldap( sc ),
1563 send_ldap_result( op, rs );
1566 #if SASL_VERSION_MAJOR < 2
1567 if( response.bv_len ) {
1568 ch_free( response.bv_val );
1573 LDAP_LOG( TRANSPORT, RESULTS, "slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0 );
1575 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1578 #elif defined(SLAP_BUILTIN_SASL)
1579 /* built-in SASL implementation */
1580 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1582 if ( ctx == NULL ) {
1583 send_ldap_error( op, rs, LDAP_OTHER,
1584 "Internal SASL Error" );
1586 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1589 if( op->orb_cred.bv_len ) {
1590 rs->sr_text = "proxy authorization not support";
1591 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1592 send_ldap_result( op, rs );
1595 op->orb_edn = ctx->sc_external_id;
1596 rs->sr_err = LDAP_SUCCESS;
1597 rs->sr_sasldata = NULL;
1598 send_ldap_sasl( op, rs );
1602 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1603 "requested SASL mechanism not supported" );
1606 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1607 "SASL not supported" );
1613 char* slap_sasl_secprops( const char *in )
1615 #ifdef HAVE_CYRUS_SASL
1616 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1618 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1620 return "SASL not supported";
1624 #ifdef HAVE_CYRUS_SASL
1626 slap_sasl_setpass( Operation *op, SlapReply *rs )
1628 struct berval id = BER_BVNULL; /* needs to come from connection */
1629 struct berval new = BER_BVNULL;
1630 struct berval old = BER_BVNULL;
1632 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1634 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1635 (SASL_CONST void **)&id.bv_val );
1637 if( rs->sr_err != SASL_OK ) {
1638 rs->sr_text = "unable to retrieve SASL username";
1639 rs->sr_err = LDAP_OTHER;
1644 LDAP_LOG( BACKEND, ENTRY,
1645 "slap_sasl_setpass: \"%s\"\n",
1646 id.bv_val ? id.bv_val : "", 0, 0);
1648 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1649 id.bv_val ? id.bv_val : "", 0, 0 );
1652 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1653 NULL, &old, &new, &rs->sr_text );
1655 if( rs->sr_err != LDAP_SUCCESS ) {
1659 if( new.bv_len == 0 ) {
1660 slap_passwd_generate(&new);
1662 if( new.bv_len == 0 ) {
1663 rs->sr_text = "password generation failed.";
1664 rs->sr_err = LDAP_OTHER;
1668 rs->sr_rspdata = slap_passwd_return( &new );
1671 #if SASL_VERSION_MAJOR < 2
1672 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1673 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1675 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1676 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1677 if( rs->sr_err != SASL_OK ) {
1678 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1681 switch(rs->sr_err) {
1683 rs->sr_err = LDAP_SUCCESS;
1693 rs->sr_err = LDAP_OTHER;
1699 #endif /* HAVE_CYRUS_SASL */
1701 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1702 * string returned in *dn is in its own allocated memory, and must be free'd
1703 * by the calling process. -Mark Adamson, Carnegie Mellon
1705 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1706 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1713 int slap_sasl_getdn( Connection *conn, Operation *op, char *id, int len,
1714 char *user_realm, struct berval *dn, int flags )
1716 int rc, is_dn = SET_NONE, do_norm = 1;
1717 struct berval dn2, *mech;
1722 LDAP_LOG( TRANSPORT, ENTRY,
1723 "slap_sasl_getdn: conn %d id=%s [len=%d]\n",
1724 conn->c_connid, id ? (*id ? id : "<empty>") : "NULL", len );
1726 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s [len=%d]\n",
1727 id ? ( *id ? id : "<empty>" ) : "NULL", len, 0 );
1731 op = conn->c_sasl_bindop;
1738 if ( len == 0 ) len = strlen( id );
1740 /* Blatantly anonymous ID */
1741 if ( len == sizeof("anonymous") - 1 &&
1742 !strcasecmp( id, "anonymous" ) ) {
1743 return( LDAP_SUCCESS );
1749 if ( conn->c_sasl_bind_mech.bv_len ) {
1750 mech = &conn->c_sasl_bind_mech;
1752 mech = &conn->c_authmech;
1755 /* An authcID needs to be converted to authzID form. Set the
1756 * values directly into *dn; they will be normalized later. (and
1757 * normalizing always makes a new copy.) An ID from a TLS certificate
1758 * is already normalized, so copy it and skip normalization.
1760 if( flags & SLAP_GETDN_AUTHCID ) {
1761 if( bvmatch( mech, &ext_bv )) {
1762 /* EXTERNAL DNs are already normalized */
1765 ber_str2bv_x( id, len, 1, dn, op->o_tmpmemctx );
1768 /* convert to u:<username> form */
1774 if( is_dn == SET_NONE ) {
1775 if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
1779 } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
1786 /* No other possibilities from here */
1787 if( is_dn == SET_NONE ) {
1790 return( LDAP_INAPPROPRIATE_AUTH );
1793 /* Username strings */
1794 if( is_dn == SET_U ) {
1796 struct berval realm = BER_BVNULL, c1 = *dn;
1798 len = dn->bv_len + sizeof("uid=")-1 + sizeof(",cn=auth")-1;
1800 if( user_realm && *user_realm ) {
1801 realm.bv_val = user_realm;
1802 realm.bv_len = strlen( user_realm );
1803 len += realm.bv_len + sizeof(",cn=") - 1;
1806 if( mech->bv_len ) {
1807 len += mech->bv_len + sizeof(",cn=")-1;
1810 /* Build the new dn */
1811 dn->bv_val = sl_malloc( len+1, op->o_tmpmemctx );
1812 if( dn->bv_val == NULL ) {
1814 LDAP_LOG( TRANSPORT, ERR,
1815 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1817 Debug( LDAP_DEBUG_ANY,
1818 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1822 p = lutil_strcopy( dn->bv_val, "uid=" );
1823 p = lutil_strncopy( p, c1.bv_val, c1.bv_len );
1825 if( realm.bv_len ) {
1826 p = lutil_strcopy( p, ",cn=" );
1827 p = lutil_strncopy( p, realm.bv_val, realm.bv_len );
1830 if( mech->bv_len ) {
1831 p = lutil_strcopy( p, ",cn=" );
1832 p = lutil_strcopy( p, mech->bv_val );
1834 p = lutil_strcopy( p, ",cn=auth" );
1835 dn->bv_len = p - dn->bv_val;
1838 LDAP_LOG( TRANSPORT, ENTRY,
1839 "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val, 0, 0 );
1841 Debug( LDAP_DEBUG_TRACE, "slap_sasl_getdn: u:id converted to %s\n", dn->bv_val,0,0 );
1845 /* Dup the DN in any case, so we don't risk
1846 * leaks or dangling pointers later,
1847 * and the DN value is '\0' terminated */
1848 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
1849 dn->bv_val = dn2.bv_val;
1852 /* All strings are in DN form now. Normalize if needed. */
1854 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
1856 /* User DNs were constructed above and must be freed now */
1857 sl_free( dn->bv_val, op->o_tmpmemctx );
1859 if ( rc != LDAP_SUCCESS ) {
1867 /* Run thru regexp */
1868 slap_sasl2dn( op, dn, &dn2, flags );
1870 sl_free( dn->bv_val, op->o_tmpmemctx );
1873 LDAP_LOG( TRANSPORT, ENTRY,
1874 "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val, 0, 0 );
1876 Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
1881 return( LDAP_SUCCESS );