2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2003 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, sasl_cb_checkpass;
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 typedef struct checkpass_info {
626 sasl_cb_checkpass( Operation *op, SlapReply *rs )
628 slap_callback *tmp = op->o_callback;
629 checkpass_info *ci = tmp->sc_private;
633 if (rs->sr_type != REP_SEARCH) return 0;
635 ci->rc = SASL_NOVERIFY;
637 a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_userPassword );
639 if ( ! access_allowed( op, rs->sr_entry, slap_schema.si_ad_userPassword,
640 NULL, ACL_AUTH, NULL ) ) return 0;
642 for ( bv = a->a_vals; bv->bv_val != NULL; bv++ ) {
643 if ( !lutil_passwd( bv, &ci->cred, NULL, &rs->sr_text ) ) {
655 const char *username,
658 struct propctx *propctx)
660 Connection *conn = (Connection *)context;
667 /* SASL will fallback to its own mechanisms if we don't
668 * find an answer here.
671 rc = slap_sasl_getdn( conn, NULL, (char *)username, 0, NULL, &op.o_req_ndn,
672 SLAP_GETDN_AUTHCID );
673 if ( rc != LDAP_SUCCESS ) {
674 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
678 if ( op.o_req_ndn.bv_len == 0 ) {
679 sasl_seterror( sconn, 0,
680 "No password is associated with the Root DSE" );
681 if ( op.o_req_ndn.bv_val != NULL ) {
682 ch_free( op.o_req_ndn.bv_val );
687 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
688 if ( op.o_bd && op.o_bd->be_search ) {
689 slap_callback cb = { NULL, sasl_cb_checkpass, NULL, NULL };
690 SlapReply rs = {REP_RESULT};
692 ci.cred.bv_val = (char *)pass;
693 ci.cred.bv_len = passlen;
696 op.o_tag = LDAP_REQ_SEARCH;
697 op.o_protocol = LDAP_VERSION3;
698 op.o_ndn = conn->c_ndn;
700 op.o_time = slap_get_time();
701 op.o_do_not_cache = 1;
702 op.o_is_auth_check = 1;
703 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
704 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
705 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
707 op.o_connid = conn->c_connid;
708 op.o_req_dn = op.o_req_ndn;
709 op.ors_scope = LDAP_SCOPE_BASE;
710 op.ors_deref = LDAP_DEREF_NEVER;
712 op.ors_filter = &generic_filter;
713 op.ors_filterstr = generic_filterstr;
715 op.o_bd->be_search( &op, &rs );
717 if ( ci.rc != SASL_OK ) {
718 sasl_seterror( sconn, 0,
719 ldap_err2string( LDAP_INVALID_CREDENTIALS ) );
722 ch_free( op.o_req_ndn.bv_val );
727 /* Convert a SASL authcid or authzid into a DN. Store the DN in an
728 * auxiliary property, so that we can refer to it in sasl_authorize
729 * without interfering with anything else. Also, the SASL username
730 * buffer is constrained to 256 characters, and our DNs could be
731 * much longer (SLAP_LDAPDN_MAXLEN, currently set to 8192)
734 slap_sasl_canonicalize(
740 const char *user_realm,
745 Connection *conn = (Connection *)context;
746 struct propctx *props = sasl_auxprop_getctx( sconn );
747 struct propval auxvals[3];
750 const char *names[2];
755 LDAP_LOG( TRANSPORT, ENTRY,
756 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
757 conn ? conn->c_connid : -1,
758 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
759 in ? in : "<empty>");
761 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
762 conn ? conn->c_connid : -1,
763 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
764 in ? in : "<empty>");
767 /* If name is too big, just truncate. We don't care, we're
768 * using DNs, not the usernames.
770 if ( inlen > out_max )
773 /* See if we need to add request, can only do it once */
774 prop_getnames( props, slap_propnames, auxvals );
775 if ( !auxvals[0].name )
776 prop_request( props, slap_propnames );
778 if ( flags & SASL_CU_AUTHID )
783 /* Need to store the Connection for auxprop_lookup */
784 if ( !auxvals[PROP_CONN].values ) {
785 names[0] = slap_propnames[PROP_CONN];
787 prop_set( props, names[0], (char *)&conn, sizeof( conn ) );
790 /* Already been here? */
791 if ( auxvals[which].values )
794 /* Normally we require an authzID to have a u: or dn: prefix.
795 * However, SASL frequently gives us an authzID that is just
796 * an exact copy of the authcID, without a prefix. We need to
797 * detect and allow this condition. If SASL calls canonicalize
798 * with SASL_CU_AUTHID|SASL_CU_AUTHZID this is a no-brainer.
799 * But if it's broken into two calls, we need to remember the
800 * authcID so that we can compare the authzID later. We store
801 * the authcID temporarily in conn->c_sasl_dn. We necessarily
802 * finish Canonicalizing before Authorizing, so there is no
803 * conflict with slap_sasl_authorize's use of this temp var.
805 * The SASL EXTERNAL mech is backwards from all the other mechs,
806 * it does authzID before the authcID. If we see that authzID
807 * has already been done, don't do anything special with authcID.
809 if ( flags == SASL_CU_AUTHID && !auxvals[PROP_AUTHZ].values ) {
810 conn->c_sasl_dn.bv_val = (char *) in;
811 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
812 rc = strcmp( in, conn->c_sasl_dn.bv_val );
813 conn->c_sasl_dn.bv_val = NULL;
814 /* They were equal, no work needed */
815 if ( !rc ) goto done;
818 rc = slap_sasl_getdn( conn, NULL, (char *)in, inlen, (char *)user_realm, &dn,
819 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
820 if ( rc != LDAP_SUCCESS ) {
821 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
825 names[0] = slap_propnames[which];
828 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
831 LDAP_LOG( TRANSPORT, ENTRY,
832 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
833 conn ? conn->c_connid : -1, names[0]+1,
834 dn.bv_val ? dn.bv_val : "<EMPTY>" );
836 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
837 conn ? conn->c_connid : -1, names[0]+1,
838 dn.bv_val ? dn.bv_val : "<EMPTY>" );
842 AC_MEMCPY( out, in, inlen );
854 char *requested_user,
858 const char *def_realm,
860 struct propctx *props)
862 Connection *conn = (Connection *)context;
863 struct propval auxvals[3];
864 struct berval authcDN, authzDN;
868 LDAP_LOG( TRANSPORT, ENTRY,
869 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
870 conn ? conn->c_connid : -1, auth_identity, requested_user);
872 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
873 "authcid=\"%s\" authzid=\"%s\"\n",
874 conn ? conn->c_connid : -1, auth_identity, requested_user );
876 if ( conn->c_sasl_dn.bv_val ) {
877 ch_free( conn->c_sasl_dn.bv_val );
878 conn->c_sasl_dn.bv_val = NULL;
879 conn->c_sasl_dn.bv_len = 0;
883 prop_getnames( props, slap_propnames+1, auxvals );
885 AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
887 /* Nothing to do if no authzID was given */
888 if ( !auxvals[1].name || !auxvals[1].values ) {
889 conn->c_sasl_dn = authcDN;
893 AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
895 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
896 ch_free( authcDN.bv_val );
897 if ( rc != LDAP_SUCCESS ) {
899 LDAP_LOG( TRANSPORT, INFO,
900 "slap_sasl_authorize: conn %ld "
901 "proxy authorization disallowed (%d)\n",
902 (long)(conn ? conn->c_connid : -1), rc, 0 );
904 Debug( LDAP_DEBUG_TRACE, "SASL Proxy Authorize [conn=%ld]: "
905 "proxy authorization disallowed (%d)\n",
906 (long) (conn ? conn->c_connid : -1), rc, 0 );
909 sasl_seterror( sconn, 0, "not authorized" );
910 ch_free( authzDN.bv_val );
914 conn->c_sasl_dn = authzDN;
916 if (conn->c_sasl_bindop) {
917 Statslog( LDAP_DEBUG_STATS,
918 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
919 conn->c_connid, conn->c_sasl_bindop->o_opid,
920 auth_identity, 0, 0);
924 LDAP_LOG( TRANSPORT, ENTRY,
925 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
926 (long)(conn ? conn->c_connid : -1), 0, 0 );
928 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
929 " proxy authorization allowed\n",
930 (long) (conn ? conn->c_connid : -1), 0, 0 );
943 struct berval authcDN, authzDN;
945 Connection *conn = context;
949 if ( conn->c_sasl_dn.bv_val ) {
950 ch_free( conn->c_sasl_dn.bv_val );
951 conn->c_sasl_dn.bv_val = NULL;
952 conn->c_sasl_dn.bv_len = 0;
956 LDAP_LOG( TRANSPORT, ENTRY,
957 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
958 conn ? conn->c_connid : -1, authcid ? authcid : "<empty>",
959 authzid ? authzid : "<empty>" );
961 Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
962 "authcid=\"%s\" authzid=\"%s\"\n",
963 (long) (conn ? conn->c_connid : -1),
964 authcid ? authcid : "<empty>",
965 authzid ? authzid : "<empty>" );
968 /* Figure out how much data we have for the dn */
969 rc = sasl_getprop( conn->c_sasl_authctx, SASL_REALM, (void **)&realm );
970 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
972 LDAP_LOG( TRANSPORT, ERR,
973 "slap_sasl_authorize: getprop(REALM) failed.\n", 0, 0, 0 );
975 Debug(LDAP_DEBUG_TRACE,
976 "authorize: getprop(REALM) failed!\n", 0,0,0);
978 *errstr = "Could not extract realm";
982 /* Convert the identities to DN's. If no authzid was given, client will
983 be bound as the DN matching their username */
984 rc = slap_sasl_getdn( conn, NULL, (char *)authcid, 0, realm,
985 &authcDN, SLAP_GETDN_AUTHCID );
986 if( rc != LDAP_SUCCESS ) {
987 *errstr = ldap_err2string( rc );
990 if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
992 LDAP_LOG( TRANSPORT, ENTRY,
993 "slap_sasl_authorize: conn %d Using authcDN=%s\n",
994 conn ? conn->c_connid : -1, authcDN.bv_val, 0 );
996 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
997 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
1000 conn->c_sasl_dn = authcDN;
1003 rc = slap_sasl_getdn( conn, NULL, (char *)authzid, 0, realm,
1004 &authzDN, SLAP_GETDN_AUTHZID );
1005 if( rc != LDAP_SUCCESS ) {
1006 ch_free( authcDN.bv_val );
1007 *errstr = ldap_err2string( rc );
1008 return SASL_NOAUTHZ;
1011 rc = slap_sasl_authorized(conn->c_sasl_bindop, &authcDN, &authzDN );
1012 ch_free( authcDN.bv_val );
1015 LDAP_LOG( TRANSPORT, INFO,
1016 "slap_sasl_authorize: conn %ld "
1017 "proxy authorization disallowed (%d)\n",
1018 (long)(conn ? conn->c_connid : -1), rc, 0 );
1020 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
1021 "proxy authorization disallowed (%d)\n",
1022 (long) (conn ? conn->c_connid : -1), rc, 0 );
1025 *errstr = "not authorized";
1026 ch_free( authzDN.bv_val );
1027 return SASL_NOAUTHZ;
1029 conn->c_sasl_dn = authzDN;
1033 LDAP_LOG( TRANSPORT, RESULTS,
1034 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
1035 (long)(conn ? conn->c_connid : -1 ), 0, 0 );
1037 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
1038 " authorization allowed\n",
1039 (long) (conn ? conn->c_connid : -1), 0, 0 );
1042 if (conn->c_sasl_bindop) {
1043 Statslog( LDAP_DEBUG_STATS,
1044 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
1045 conn->c_connid, conn->c_sasl_bindop->o_opid,
1052 #endif /* SASL_VERSION_MAJOR >= 2 */
1055 slap_sasl_err2ldap( int saslerr )
1064 rc = LDAP_SASL_BIND_IN_PROGRESS;
1073 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1076 rc = LDAP_INVALID_CREDENTIALS;
1079 rc = LDAP_INSUFFICIENT_ACCESS;
1083 rc = LDAP_INAPPROPRIATE_AUTH;
1094 int slap_sasl_init( void )
1096 #ifdef HAVE_CYRUS_SASL
1098 static sasl_callback_t server_callbacks[] = {
1099 { SASL_CB_LOG, &slap_sasl_log, NULL },
1100 { SASL_CB_LIST_END, NULL, NULL }
1103 #ifdef HAVE_SASL_VERSION
1104 /* stringify the version number, sasl.h doesn't do it for us */
1105 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1106 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1107 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1110 sasl_version( NULL, &rc );
1111 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1112 (rc & 0xffff) < SASL_VERSION_STEP)
1114 char version[sizeof("xxx.xxx.xxxxx")];
1115 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1118 LDAP_LOG( TRANSPORT, INFO,
1119 "slap_sasl_init: SASL library version mismatch:"
1120 " expected " SASL_VERSION_STRING ","
1121 " got %s\n", version, 0, 0 );
1123 Debug( LDAP_DEBUG_ANY,
1124 "slap_sasl_init: SASL library version mismatch:"
1125 " expected " SASL_VERSION_STRING ","
1126 " got %s\n", version, 0, 0 );
1132 /* SASL 2 does its own memory management internally */
1133 #if SASL_VERSION_MAJOR < 2
1142 ldap_pvt_sasl_mutex_new,
1143 ldap_pvt_sasl_mutex_lock,
1144 ldap_pvt_sasl_mutex_unlock,
1145 ldap_pvt_sasl_mutex_dispose );
1147 #if SASL_VERSION_MAJOR >= 2
1148 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1150 sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1152 /* should provide callbacks for logging */
1153 /* server name should be configurable */
1154 rc = sasl_server_init( server_callbacks, "slapd" );
1156 if( rc != SASL_OK ) {
1158 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: init failed.\n", 0, 0, 0 );
1160 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
1163 #if SASL_VERSION_MAJOR < 2
1164 /* A no-op used to make sure we linked with Cyrus 1.5 */
1165 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1172 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: initialized!\n", 0, 0, 0 );
1174 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1178 /* default security properties */
1179 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1180 sasl_secprops.max_ssf = INT_MAX;
1181 sasl_secprops.maxbufsize = 65536;
1182 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1188 int slap_sasl_destroy( void )
1190 #ifdef HAVE_CYRUS_SASL
1193 free( global_host );
1199 int slap_sasl_open( Connection *conn, int reopen )
1201 int sc = LDAP_SUCCESS;
1202 #ifdef HAVE_CYRUS_SASL
1205 sasl_conn_t *ctx = NULL;
1206 sasl_callback_t *session_callbacks;
1208 #if SASL_VERSION_MAJOR >= 2
1209 char *ipremoteport = NULL, *iplocalport = NULL;
1212 assert( conn->c_sasl_authctx == NULL );
1215 assert( conn->c_sasl_extra == NULL );
1218 #if SASL_VERSION_MAJOR >= 2
1219 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1221 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1223 if( session_callbacks == NULL ) {
1225 LDAP_LOG( TRANSPORT, ERR,
1226 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1228 Debug( LDAP_DEBUG_ANY,
1229 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1233 conn->c_sasl_extra = session_callbacks;
1235 session_callbacks[cb=0].id = SASL_CB_LOG;
1236 session_callbacks[cb].proc = &slap_sasl_log;
1237 session_callbacks[cb++].context = conn;
1239 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1240 session_callbacks[cb].proc = &slap_sasl_authorize;
1241 session_callbacks[cb++].context = conn;
1243 #if SASL_VERSION_MAJOR >= 2
1244 session_callbacks[cb].id = SASL_CB_CANON_USER;
1245 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1246 session_callbacks[cb++].context = conn;
1248 /* XXXX: this should be conditional */
1249 session_callbacks[cb].id = SASL_CB_SERVER_USERDB_CHECKPASS;
1250 session_callbacks[cb].proc = &slap_sasl_checkpass;
1251 session_callbacks[cb++].context = conn;
1254 session_callbacks[cb].id = SASL_CB_LIST_END;
1255 session_callbacks[cb].proc = NULL;
1256 session_callbacks[cb++].context = NULL;
1258 session_callbacks = conn->c_sasl_extra;
1261 conn->c_sasl_layers = 0;
1263 if( global_host == NULL ) {
1264 global_host = ldap_pvt_get_fqdn( NULL );
1267 /* create new SASL context */
1268 #if SASL_VERSION_MAJOR >= 2
1269 if ( conn->c_sock_name.bv_len != 0 &&
1270 strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
1273 iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
1274 /* Convert IPv6 addresses to address;port syntax. */
1275 p = strrchr( iplocalport, ' ' );
1276 /* Convert IPv4 addresses to address;port syntax. */
1277 if ( p == NULL ) p = strchr( iplocalport, ':' );
1282 if ( conn->c_peer_name.bv_len != 0 &&
1283 strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
1286 ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
1287 /* Convert IPv6 addresses to address;port syntax. */
1288 p = strrchr( ipremoteport, ' ' );
1289 /* Convert IPv4 addresses to address;port syntax. */
1290 if ( p == NULL ) p = strchr( ipremoteport, ':' );
1295 sc = sasl_server_new( "ldap", global_host, global_realm,
1296 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1297 if ( iplocalport != NULL ) {
1298 ch_free( iplocalport );
1300 if ( ipremoteport != NULL ) {
1301 ch_free( ipremoteport );
1304 sc = sasl_server_new( "ldap", global_host, global_realm,
1305 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1308 if( sc != SASL_OK ) {
1310 LDAP_LOG( TRANSPORT, ERR,
1311 "slap_sasl_open: sasl_server_new failed: %d\n", sc, 0, 0 );
1313 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1320 conn->c_sasl_authctx = ctx;
1322 if( sc == SASL_OK ) {
1323 sc = sasl_setprop( ctx,
1324 SASL_SEC_PROPS, &sasl_secprops );
1326 if( sc != SASL_OK ) {
1328 LDAP_LOG( TRANSPORT, ERR,
1329 "slap_sasl_open: sasl_setprop failed: %d \n", sc, 0, 0 );
1331 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1335 slap_sasl_close( conn );
1340 sc = slap_sasl_err2ldap( sc );
1342 #elif defined(SLAP_BUILTIN_SASL)
1343 /* built-in SASL implementation */
1344 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1345 if( ctx == NULL ) return -1;
1347 ctx->sc_external_ssf = 0;
1348 ctx->sc_external_id.bv_len = 0;
1349 ctx->sc_external_id.bv_val = NULL;
1351 conn->c_sasl_authctx = ctx;
1357 int slap_sasl_external(
1360 struct berval *auth_id )
1362 #if SASL_VERSION_MAJOR >= 2
1364 sasl_conn_t *ctx = conn->c_sasl_authctx;
1366 if ( ctx == NULL ) {
1367 return LDAP_UNAVAILABLE;
1370 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1372 if ( sc != SASL_OK ) {
1376 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1377 auth_id ? auth_id->bv_val : NULL );
1379 if ( sc != SASL_OK ) {
1383 #elif defined(HAVE_CYRUS_SASL)
1385 sasl_conn_t *ctx = conn->c_sasl_authctx;
1386 sasl_external_properties_t extprops;
1388 if ( ctx == NULL ) {
1389 return LDAP_UNAVAILABLE;
1392 memset( &extprops, '\0', sizeof(extprops) );
1394 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1396 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1397 (void *) &extprops );
1399 if ( sc != SASL_OK ) {
1402 #elif defined(SLAP_BUILTIN_SASL)
1403 /* built-in SASL implementation */
1404 SASL_CTX *ctx = conn->c_sasl_authctx;
1405 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1407 ctx->sc_external_ssf = ssf;
1409 ctx->sc_external_id = *auth_id;
1410 auth_id->bv_len = 0;
1411 auth_id->bv_val = NULL;
1413 ctx->sc_external_id.bv_len = 0;
1414 ctx->sc_external_id.bv_val = NULL;
1418 return LDAP_SUCCESS;
1421 int slap_sasl_reset( Connection *conn )
1423 return LDAP_SUCCESS;
1426 char ** slap_sasl_mechs( Connection *conn )
1428 char **mechs = NULL;
1430 #ifdef HAVE_CYRUS_SASL
1431 sasl_conn_t *ctx = conn->c_sasl_authctx;
1433 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1437 SASL_CONST char *mechstr;
1439 sc = sasl_listmech( ctx,
1440 NULL, NULL, ",", NULL,
1441 &mechstr, NULL, NULL );
1443 if( sc != SASL_OK ) {
1445 LDAP_LOG( TRANSPORT, ERR,
1446 "slap_sasl_mechs: sasl_listmech failed: %d\n", sc, 0, 0 );
1448 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1455 mechs = ldap_str2charray( mechstr, "," );
1457 #if SASL_VERSION_MAJOR < 2
1461 #elif defined(SLAP_BUILTIN_SASL)
1462 /* builtin SASL implementation */
1463 SASL_CTX *ctx = conn->c_sasl_authctx;
1464 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1465 /* should check ssf */
1466 mechs = ldap_str2charray( "EXTERNAL", "," );
1473 int slap_sasl_close( Connection *conn )
1475 #ifdef HAVE_CYRUS_SASL
1476 sasl_conn_t *ctx = conn->c_sasl_authctx;
1479 sasl_dispose( &ctx );
1481 if ( conn->c_sasl_sockctx &&
1482 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1484 ctx = conn->c_sasl_sockctx;
1485 sasl_dispose( &ctx );
1488 conn->c_sasl_authctx = NULL;
1489 conn->c_sasl_sockctx = NULL;
1490 conn->c_sasl_done = 0;
1492 free( conn->c_sasl_extra );
1493 conn->c_sasl_extra = NULL;
1495 #elif defined(SLAP_BUILTIN_SASL)
1496 SASL_CTX *ctx = conn->c_sasl_authctx;
1498 if( ctx->sc_external_id.bv_val ) {
1499 free( ctx->sc_external_id.bv_val );
1500 ctx->sc_external_id.bv_val = NULL;
1503 conn->c_sasl_authctx = NULL;
1507 return LDAP_SUCCESS;
1510 int slap_sasl_bind( Operation *op, SlapReply *rs )
1512 #ifdef HAVE_CYRUS_SASL
1513 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1514 struct berval response;
1515 unsigned reslen = 0;
1519 LDAP_LOG( TRANSPORT, ENTRY,
1520 "sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1521 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1522 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1523 op->o_conn->c_sasl_bind_mech.bv_val,
1524 op->orb_cred.bv_len );
1526 Debug(LDAP_DEBUG_ARGS,
1527 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1528 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1529 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1530 op->o_conn->c_sasl_bind_mech.bv_val,
1531 op->orb_cred.bv_len );
1535 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1536 "SASL unavailable on this session" );
1540 #if SASL_VERSION_MAJOR >= 2
1541 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1542 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1543 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1544 sasl_server_step( ctx, cred, clen, resp, rlen )
1546 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1547 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1548 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1549 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1552 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1553 /* If we already authenticated once, must use a new context */
1554 if ( op->o_conn->c_sasl_done ) {
1556 const char *authid = NULL;
1557 #if SASL_VERSION_MAJOR >= 2
1558 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1559 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1560 if ( authid ) authid = ch_strdup( authid );
1562 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1563 sasl_dispose( &ctx );
1565 op->o_conn->c_sasl_authctx = NULL;
1567 slap_sasl_open( op->o_conn, 1 );
1568 ctx = op->o_conn->c_sasl_authctx;
1569 #if SASL_VERSION_MAJOR >= 2
1571 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1572 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1573 ch_free( (char *)authid );
1578 op->o_conn->c_sasl_bind_mech.bv_val,
1579 op->orb_cred.bv_val, op->orb_cred.bv_len,
1580 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1584 op->orb_cred.bv_val, op->orb_cred.bv_len,
1585 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1588 response.bv_len = reslen;
1590 if ( sc == SASL_OK ) {
1591 sasl_ssf_t *ssf = NULL;
1593 op->orb_edn = op->o_conn->c_sasl_dn;
1594 op->o_conn->c_sasl_dn.bv_val = NULL;
1595 op->o_conn->c_sasl_dn.bv_len = 0;
1596 op->o_conn->c_sasl_done = 1;
1598 rs->sr_err = LDAP_SUCCESS;
1600 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1601 op->orb_ssf = ssf ? *ssf : 0;
1605 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1606 op->o_conn->c_sasl_layers++;
1608 /* If there's an old layer, set sockctx to NULL to
1609 * tell connection_read() to wait for us to finish.
1610 * Otherwise there is a race condition: we have to
1611 * send the Bind response using the old security
1612 * context and then remove it before reading any
1615 if ( op->o_conn->c_sasl_sockctx ) {
1616 ctx = op->o_conn->c_sasl_sockctx;
1617 op->o_conn->c_sasl_sockctx = NULL;
1619 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1621 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1624 /* Must send response using old security layer */
1625 if (response.bv_len) rs->sr_sasldata = &response;
1626 send_ldap_sasl( op, rs );
1628 /* Now dispose of the old security layer.
1631 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1632 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1633 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1634 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1635 sasl_dispose( &ctx );
1637 } else if ( sc == SASL_CONTINUE ) {
1638 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1639 rs->sr_sasldata = &response;
1640 send_ldap_sasl( op, rs );
1643 #if SASL_VERSION_MAJOR >= 2
1644 rs->sr_text = sasl_errdetail( ctx );
1646 rs->sr_err = slap_sasl_err2ldap( sc ),
1647 send_ldap_result( op, rs );
1650 #if SASL_VERSION_MAJOR < 2
1651 if( response.bv_len ) {
1652 ch_free( response.bv_val );
1657 LDAP_LOG( TRANSPORT, RESULTS, "slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0 );
1659 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1662 #elif defined(SLAP_BUILTIN_SASL)
1663 /* built-in SASL implementation */
1664 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1666 if ( ctx == NULL ) {
1667 send_ldap_error( op, rs, LDAP_OTHER,
1668 "Internal SASL Error" );
1670 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1673 if( op->orb_cred.bv_len ) {
1674 rs->sr_text = "proxy authorization not support";
1675 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1676 send_ldap_result( op, rs );
1679 op->orb_edn = ctx->sc_external_id;
1680 rs->sr_err = LDAP_SUCCESS;
1681 rs->sr_sasldata = NULL;
1682 send_ldap_sasl( op, rs );
1686 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1687 "requested SASL mechanism not supported" );
1690 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1691 "SASL not supported" );
1697 char* slap_sasl_secprops( const char *in )
1699 #ifdef HAVE_CYRUS_SASL
1700 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1702 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1704 return "SASL not supported";
1708 #ifdef HAVE_CYRUS_SASL
1710 slap_sasl_setpass( Operation *op, SlapReply *rs )
1712 struct berval id = { 0, NULL }; /* needs to come from connection */
1713 struct berval new = { 0, NULL };
1714 struct berval old = { 0, NULL };
1716 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1718 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1719 (SASL_CONST void **)&id.bv_val );
1721 if( rs->sr_err != SASL_OK ) {
1722 rs->sr_text = "unable to retrieve SASL username";
1723 rs->sr_err = LDAP_OTHER;
1728 LDAP_LOG( BACKEND, ENTRY,
1729 "slap_sasl_setpass: \"%s\"\n",
1730 id.bv_val ? id.bv_val : "", 0, 0);
1732 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1733 id.bv_val ? id.bv_val : "", 0, 0 );
1736 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1737 NULL, &old, &new, &rs->sr_text );
1739 if( rs->sr_err != LDAP_SUCCESS ) {
1743 if( new.bv_len == 0 ) {
1744 slap_passwd_generate(&new);
1746 if( new.bv_len == 0 ) {
1747 rs->sr_text = "password generation failed.";
1748 rs->sr_err = LDAP_OTHER;
1752 rs->sr_rspdata = slap_passwd_return( &new );
1755 #if SASL_VERSION_MAJOR < 2
1756 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1757 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1759 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1760 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1761 if( rs->sr_err != SASL_OK ) {
1762 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1765 switch(rs->sr_err) {
1767 rs->sr_err = LDAP_SUCCESS;
1777 rs->sr_err = LDAP_OTHER;
1783 #endif /* HAVE_CYRUS_SASL */
1785 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1786 * string returned in *dn is in its own allocated memory, and must be free'd
1787 * by the calling process. -Mark Adamson, Carnegie Mellon
1789 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1790 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1797 int slap_sasl_getdn( Connection *conn, Operation *op, char *id, int len,
1798 char *user_realm, struct berval *dn, int flags )
1800 int rc, is_dn = SET_NONE, do_norm = 1;
1801 struct berval dn2, *mech;
1806 LDAP_LOG( TRANSPORT, ENTRY,
1807 "slap_sasl_getdn: conn %d id=%s [len=%d]\n",
1808 conn->c_connid, id ? (*id ? id : "<empty>") : "NULL", len );
1810 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s [len=%d]\n",
1811 id ? ( *id ? id : "<empty>" ) : "NULL", len, 0 );
1815 op = conn->c_sasl_bindop;
1822 if ( len == 0 ) len = strlen( id );
1824 /* Blatantly anonymous ID */
1825 if ( len == sizeof("anonymous") - 1 &&
1826 !strcasecmp( id, "anonymous" ) ) {
1827 return( LDAP_SUCCESS );
1833 if ( conn->c_sasl_bind_mech.bv_len ) {
1834 mech = &conn->c_sasl_bind_mech;
1836 mech = &conn->c_authmech;
1839 /* An authcID needs to be converted to authzID form. Set the
1840 * values directly into *dn; they will be normalized later. (and
1841 * normalizing always makes a new copy.) An ID from a TLS certificate
1842 * is already normalized, so copy it and skip normalization.
1844 if( flags & SLAP_GETDN_AUTHCID ) {
1845 if( bvmatch( mech, &ext_bv )) {
1846 /* EXTERNAL DNs are already normalized */
1849 ber_str2bv_x( id, len, 1, dn, op->o_tmpmemctx );
1852 /* convert to u:<username> form */
1858 if( is_dn == SET_NONE ) {
1859 if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
1863 } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
1870 /* No other possibilities from here */
1871 if( is_dn == SET_NONE ) {
1874 return( LDAP_INAPPROPRIATE_AUTH );
1877 /* Username strings */
1878 if( is_dn == SET_U ) {
1880 struct berval realm = { 0, NULL }, c1 = *dn;
1882 len = dn->bv_len + sizeof("uid=")-1 + sizeof(",cn=auth")-1;
1884 if( user_realm && *user_realm ) {
1885 realm.bv_val = user_realm;
1886 realm.bv_len = strlen( user_realm );
1887 len += realm.bv_len + sizeof(",cn=") - 1;
1890 if( mech->bv_len ) {
1891 len += mech->bv_len + sizeof(",cn=")-1;
1894 /* Build the new dn */
1895 dn->bv_val = sl_malloc( len+1, op->o_tmpmemctx );
1896 if( dn->bv_val == NULL ) {
1898 LDAP_LOG( TRANSPORT, ERR,
1899 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1901 Debug( LDAP_DEBUG_ANY,
1902 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1906 p = lutil_strcopy( dn->bv_val, "uid=" );
1907 p = lutil_strncopy( p, c1.bv_val, c1.bv_len );
1909 if( realm.bv_len ) {
1910 p = lutil_strcopy( p, ",cn=" );
1911 p = lutil_strncopy( p, realm.bv_val, realm.bv_len );
1914 if( mech->bv_len ) {
1915 p = lutil_strcopy( p, ",cn=" );
1916 p = lutil_strcopy( p, mech->bv_val );
1918 p = lutil_strcopy( p, ",cn=auth" );
1919 dn->bv_len = p - dn->bv_val;
1922 LDAP_LOG( TRANSPORT, ENTRY,
1923 "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val, 0, 0 );
1925 Debug( LDAP_DEBUG_TRACE, "slap_sasl_getdn: u:id converted to %s\n", dn->bv_val,0,0 );
1929 /* Dup the DN in any case, so we don't risk
1930 * leaks or dangling pointers later,
1931 * and the DN value is '\0' terminated */
1932 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
1933 dn->bv_val = dn2.bv_val;
1936 /* All strings are in DN form now. Normalize if needed. */
1938 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
1940 /* User DNs were constructed above and must be freed now */
1941 sl_free( dn->bv_val, op->o_tmpmemctx );
1943 if ( rc != LDAP_SUCCESS ) {
1951 /* Run thru regexp */
1952 slap_sasl2dn( op, dn, &dn2, flags );
1954 sl_free( dn->bv_val, op->o_tmpmemctx );
1957 LDAP_LOG( TRANSPORT, ENTRY,
1958 "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val, 0, 0 );
1960 Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
1965 return( LDAP_SUCCESS );