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, 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 ) )
645 for ( bv = a->a_vals; bv->bv_val != NULL; bv++ ) {
646 if ( !lutil_passwd( bv, &ci->cred, NULL, &rs->sr_text ) ) {
658 const char *username,
661 struct propctx *propctx)
663 Connection *conn = (Connection *)context;
670 /* SASL will fallback to its own mechanisms if we don't
671 * find an answer here.
674 rc = slap_sasl_getdn( conn, NULL, (char *)username, 0, NULL, &op.o_req_ndn,
675 SLAP_GETDN_AUTHCID );
676 if ( rc != LDAP_SUCCESS ) {
677 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
681 if ( op.o_req_ndn.bv_len == 0 ) {
682 sasl_seterror( sconn, 0,
683 "No password is associated with the Root DSE" );
684 if ( op.o_req_ndn.bv_val != NULL ) {
685 ch_free( op.o_req_ndn.bv_val );
690 op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
691 if ( op.o_bd && op.o_bd->be_search ) {
692 slap_callback cb = { NULL, sasl_cb_checkpass, NULL, NULL };
693 SlapReply rs = {REP_RESULT};
695 ci.cred.bv_val = (char *)pass;
696 ci.cred.bv_len = passlen;
699 op.o_tag = LDAP_REQ_SEARCH;
700 op.o_protocol = LDAP_VERSION3;
701 op.o_ndn = conn->c_ndn;
703 op.o_time = slap_get_time();
704 op.o_do_not_cache = 1;
705 op.o_is_auth_check = 1;
706 op.o_threadctx = conn->c_sasl_bindop->o_threadctx;
707 op.o_tmpmemctx = conn->c_sasl_bindop->o_tmpmemctx;
708 op.o_tmpmfuncs = conn->c_sasl_bindop->o_tmpmfuncs;
710 op.o_connid = conn->c_connid;
711 op.o_req_dn = op.o_req_ndn;
712 op.ors_scope = LDAP_SCOPE_BASE;
713 op.ors_deref = LDAP_DEREF_NEVER;
715 op.ors_filter = &generic_filter;
716 op.ors_filterstr = generic_filterstr;
718 op.o_bd->be_search( &op, &rs );
720 if ( ci.rc != SASL_OK ) {
721 sasl_seterror( sconn, 0,
722 ldap_err2string( LDAP_INVALID_CREDENTIALS ) );
725 ch_free( op.o_req_ndn.bv_val );
730 /* Convert a SASL authcid or authzid into a DN. Store the DN in an
731 * auxiliary property, so that we can refer to it in sasl_authorize
732 * without interfering with anything else. Also, the SASL username
733 * buffer is constrained to 256 characters, and our DNs could be
734 * much longer (SLAP_LDAPDN_MAXLEN, currently set to 8192)
737 slap_sasl_canonicalize(
743 const char *user_realm,
748 Connection *conn = (Connection *)context;
749 struct propctx *props = sasl_auxprop_getctx( sconn );
750 struct propval auxvals[3];
753 const char *names[2];
758 LDAP_LOG( TRANSPORT, ENTRY,
759 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
760 conn ? conn->c_connid : -1,
761 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
762 in ? in : "<empty>");
764 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
765 conn ? conn->c_connid : -1,
766 (flags & SASL_CU_AUTHID) ? "authcid" : "authzid",
767 in ? in : "<empty>");
770 /* If name is too big, just truncate. We don't care, we're
771 * using DNs, not the usernames.
773 if ( inlen > out_max )
776 /* This is a Simple Bind using SPASSWD. That means the in-directory
777 * userPassword of the Binding user already points at SASL, so it
778 * cannot be used to actually satisfy a password comparison. Just
779 * ignore it, some other mech will process it.
781 if ( !conn->c_sasl_bindop ||
782 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) goto done;
784 /* See if we need to add request, can only do it once */
785 prop_getnames( props, slap_propnames, auxvals );
786 if ( !auxvals[0].name )
787 prop_request( props, slap_propnames );
789 if ( flags & SASL_CU_AUTHID )
794 /* Need to store the Connection for auxprop_lookup */
795 if ( !auxvals[PROP_CONN].values ) {
796 names[0] = slap_propnames[PROP_CONN];
798 prop_set( props, names[0], (char *)&conn, sizeof( conn ) );
801 /* Already been here? */
802 if ( auxvals[which].values )
805 /* Normally we require an authzID to have a u: or dn: prefix.
806 * However, SASL frequently gives us an authzID that is just
807 * an exact copy of the authcID, without a prefix. We need to
808 * detect and allow this condition. If SASL calls canonicalize
809 * with SASL_CU_AUTHID|SASL_CU_AUTHZID this is a no-brainer.
810 * But if it's broken into two calls, we need to remember the
811 * authcID so that we can compare the authzID later. We store
812 * the authcID temporarily in conn->c_sasl_dn. We necessarily
813 * finish Canonicalizing before Authorizing, so there is no
814 * conflict with slap_sasl_authorize's use of this temp var.
816 * The SASL EXTERNAL mech is backwards from all the other mechs,
817 * it does authzID before the authcID. If we see that authzID
818 * has already been done, don't do anything special with authcID.
820 if ( flags == SASL_CU_AUTHID && !auxvals[PROP_AUTHZ].values ) {
821 conn->c_sasl_dn.bv_val = (char *) in;
822 } else if ( flags == SASL_CU_AUTHZID && conn->c_sasl_dn.bv_val ) {
823 rc = strcmp( in, conn->c_sasl_dn.bv_val );
824 conn->c_sasl_dn.bv_val = NULL;
825 /* They were equal, no work needed */
826 if ( !rc ) goto done;
829 rc = slap_sasl_getdn( conn, NULL, (char *)in, inlen, (char *)user_realm, &dn,
830 (flags & SASL_CU_AUTHID) ? SLAP_GETDN_AUTHCID : SLAP_GETDN_AUTHZID );
831 if ( rc != LDAP_SUCCESS ) {
832 sasl_seterror( sconn, 0, ldap_err2string( rc ) );
836 names[0] = slap_propnames[which];
839 prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
842 LDAP_LOG( TRANSPORT, ENTRY,
843 "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
844 conn ? conn->c_connid : -1, names[0]+1,
845 dn.bv_val ? dn.bv_val : "<EMPTY>" );
847 Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: %s=\"%s\"\n",
848 conn ? conn->c_connid : -1, names[0]+1,
849 dn.bv_val ? dn.bv_val : "<EMPTY>" );
853 AC_MEMCPY( out, in, inlen );
865 char *requested_user,
869 const char *def_realm,
871 struct propctx *props)
873 Connection *conn = (Connection *)context;
874 struct propval auxvals[3];
875 struct berval authcDN, authzDN;
878 /* Simple Binds don't support proxy authorization, ignore it */
879 if ( !conn->c_sasl_bindop ||
880 conn->c_sasl_bindop->orb_method != LDAP_AUTH_SASL ) return SASL_OK;
883 LDAP_LOG( TRANSPORT, ENTRY,
884 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
885 conn ? conn->c_connid : -1, auth_identity, requested_user);
887 Debug( LDAP_DEBUG_ARGS, "SASL proxy authorize [conn=%ld]: "
888 "authcid=\"%s\" authzid=\"%s\"\n",
889 conn ? conn->c_connid : -1, auth_identity, requested_user );
891 if ( conn->c_sasl_dn.bv_val ) {
892 ch_free( conn->c_sasl_dn.bv_val );
893 conn->c_sasl_dn.bv_val = NULL;
894 conn->c_sasl_dn.bv_len = 0;
898 prop_getnames( props, slap_propnames+1, auxvals );
900 /* Should not happen */
901 if ( !auxvals[0].values ) {
902 sasl_seterror( sconn, 0, "invalid authcid" );
906 AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
908 /* Nothing to do if no authzID was given */
909 if ( !auxvals[1].name || !auxvals[1].values ) {
910 conn->c_sasl_dn = authcDN;
914 AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
916 rc = slap_sasl_authorized( conn->c_sasl_bindop, &authcDN, &authzDN );
917 ch_free( authcDN.bv_val );
918 if ( rc != LDAP_SUCCESS ) {
920 LDAP_LOG( TRANSPORT, INFO,
921 "slap_sasl_authorize: conn %ld "
922 "proxy authorization disallowed (%d)\n",
923 (long)(conn ? conn->c_connid : -1), rc, 0 );
925 Debug( LDAP_DEBUG_TRACE, "SASL Proxy Authorize [conn=%ld]: "
926 "proxy authorization disallowed (%d)\n",
927 (long) (conn ? conn->c_connid : -1), rc, 0 );
930 sasl_seterror( sconn, 0, "not authorized" );
931 ch_free( authzDN.bv_val );
935 conn->c_sasl_dn = authzDN;
937 if (conn->c_sasl_bindop) {
938 Statslog( LDAP_DEBUG_STATS,
939 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
940 conn->c_connid, conn->c_sasl_bindop->o_opid,
941 auth_identity, 0, 0);
945 LDAP_LOG( TRANSPORT, ENTRY,
946 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
947 (long)(conn ? conn->c_connid : -1), 0, 0 );
949 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
950 " proxy authorization allowed\n",
951 (long) (conn ? conn->c_connid : -1), 0, 0 );
964 struct berval authcDN, authzDN;
966 Connection *conn = context;
970 if ( conn->c_sasl_dn.bv_val ) {
971 ch_free( conn->c_sasl_dn.bv_val );
972 conn->c_sasl_dn.bv_val = NULL;
973 conn->c_sasl_dn.bv_len = 0;
977 LDAP_LOG( TRANSPORT, ENTRY,
978 "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
979 conn ? conn->c_connid : -1, authcid ? authcid : "<empty>",
980 authzid ? authzid : "<empty>" );
982 Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
983 "authcid=\"%s\" authzid=\"%s\"\n",
984 (long) (conn ? conn->c_connid : -1),
985 authcid ? authcid : "<empty>",
986 authzid ? authzid : "<empty>" );
989 /* Figure out how much data we have for the dn */
990 rc = sasl_getprop( conn->c_sasl_authctx, SASL_REALM, (void **)&realm );
991 if( rc != SASL_OK && rc != SASL_NOTDONE ) {
993 LDAP_LOG( TRANSPORT, ERR,
994 "slap_sasl_authorize: getprop(REALM) failed.\n", 0, 0, 0 );
996 Debug(LDAP_DEBUG_TRACE,
997 "authorize: getprop(REALM) failed!\n", 0,0,0);
999 *errstr = "Could not extract realm";
1000 return SASL_NOAUTHZ;
1003 /* Convert the identities to DN's. If no authzid was given, client will
1004 be bound as the DN matching their username */
1005 rc = slap_sasl_getdn( conn, NULL, (char *)authcid, 0, realm,
1006 &authcDN, SLAP_GETDN_AUTHCID );
1007 if( rc != LDAP_SUCCESS ) {
1008 *errstr = ldap_err2string( rc );
1009 return SASL_NOAUTHZ;
1011 if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
1013 LDAP_LOG( TRANSPORT, ENTRY,
1014 "slap_sasl_authorize: conn %d Using authcDN=%s\n",
1015 conn ? conn->c_connid : -1, authcDN.bv_val, 0 );
1017 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
1018 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
1021 conn->c_sasl_dn = authcDN;
1024 rc = slap_sasl_getdn( conn, NULL, (char *)authzid, 0, realm,
1025 &authzDN, SLAP_GETDN_AUTHZID );
1026 if( rc != LDAP_SUCCESS ) {
1027 ch_free( authcDN.bv_val );
1028 *errstr = ldap_err2string( rc );
1029 return SASL_NOAUTHZ;
1032 rc = slap_sasl_authorized(conn->c_sasl_bindop, &authcDN, &authzDN );
1033 ch_free( authcDN.bv_val );
1036 LDAP_LOG( TRANSPORT, INFO,
1037 "slap_sasl_authorize: conn %ld "
1038 "proxy authorization disallowed (%d)\n",
1039 (long)(conn ? conn->c_connid : -1), rc, 0 );
1041 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
1042 "proxy authorization disallowed (%d)\n",
1043 (long) (conn ? conn->c_connid : -1), rc, 0 );
1046 *errstr = "not authorized";
1047 ch_free( authzDN.bv_val );
1048 return SASL_NOAUTHZ;
1050 conn->c_sasl_dn = authzDN;
1054 LDAP_LOG( TRANSPORT, RESULTS,
1055 "slap_sasl_authorize: conn %d proxy authorization allowed\n",
1056 (long)(conn ? conn->c_connid : -1 ), 0, 0 );
1058 Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
1059 " authorization allowed\n",
1060 (long) (conn ? conn->c_connid : -1), 0, 0 );
1063 if (conn->c_sasl_bindop) {
1064 Statslog( LDAP_DEBUG_STATS,
1065 "conn=%lu op=%lu BIND authcid=\"%s\"\n",
1066 conn->c_connid, conn->c_sasl_bindop->o_opid,
1073 #endif /* SASL_VERSION_MAJOR >= 2 */
1076 slap_sasl_err2ldap( int saslerr )
1085 rc = LDAP_SASL_BIND_IN_PROGRESS;
1094 rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
1097 rc = LDAP_INVALID_CREDENTIALS;
1100 rc = LDAP_INSUFFICIENT_ACCESS;
1104 rc = LDAP_INAPPROPRIATE_AUTH;
1115 int slap_sasl_init( void )
1117 #ifdef HAVE_CYRUS_SASL
1119 static sasl_callback_t server_callbacks[] = {
1120 { SASL_CB_LOG, &slap_sasl_log, NULL },
1121 { SASL_CB_LIST_END, NULL, NULL }
1124 #ifdef HAVE_SASL_VERSION
1125 /* stringify the version number, sasl.h doesn't do it for us */
1126 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
1127 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
1128 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
1131 sasl_version( NULL, &rc );
1132 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
1133 (rc & 0xffff) < SASL_VERSION_STEP)
1135 char version[sizeof("xxx.xxx.xxxxx")];
1136 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
1139 LDAP_LOG( TRANSPORT, INFO,
1140 "slap_sasl_init: SASL library version mismatch:"
1141 " expected " SASL_VERSION_STRING ","
1142 " got %s\n", version, 0, 0 );
1144 Debug( LDAP_DEBUG_ANY,
1145 "slap_sasl_init: SASL library version mismatch:"
1146 " expected " SASL_VERSION_STRING ","
1147 " got %s\n", version, 0, 0 );
1153 /* SASL 2 does its own memory management internally */
1154 #if SASL_VERSION_MAJOR < 2
1163 ldap_pvt_sasl_mutex_new,
1164 ldap_pvt_sasl_mutex_lock,
1165 ldap_pvt_sasl_mutex_unlock,
1166 ldap_pvt_sasl_mutex_dispose );
1168 #if SASL_VERSION_MAJOR >= 2
1169 generic_filter.f_desc = slap_schema.si_ad_objectClass;
1171 sasl_auxprop_add_plugin( "slapd", slap_auxprop_init );
1173 /* should provide callbacks for logging */
1174 /* server name should be configurable */
1175 rc = sasl_server_init( server_callbacks, "slapd" );
1177 if( rc != SASL_OK ) {
1179 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: init failed.\n", 0, 0, 0 );
1181 Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
1184 #if SASL_VERSION_MAJOR < 2
1185 /* A no-op used to make sure we linked with Cyrus 1.5 */
1186 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
1193 LDAP_LOG( TRANSPORT, INFO, "slap_sasl_init: initialized!\n", 0, 0, 0 );
1195 Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
1199 /* default security properties */
1200 memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
1201 sasl_secprops.max_ssf = INT_MAX;
1202 sasl_secprops.maxbufsize = 65536;
1203 sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
1209 int slap_sasl_destroy( void )
1211 #ifdef HAVE_CYRUS_SASL
1214 free( global_host );
1220 int slap_sasl_open( Connection *conn, int reopen )
1222 int sc = LDAP_SUCCESS;
1223 #ifdef HAVE_CYRUS_SASL
1226 sasl_conn_t *ctx = NULL;
1227 sasl_callback_t *session_callbacks;
1229 #if SASL_VERSION_MAJOR >= 2
1230 char *ipremoteport = NULL, *iplocalport = NULL;
1233 assert( conn->c_sasl_authctx == NULL );
1236 assert( conn->c_sasl_extra == NULL );
1239 #if SASL_VERSION_MAJOR >= 2
1240 SLAP_CALLOC( 5, sizeof(sasl_callback_t));
1242 SLAP_CALLOC( 3, sizeof(sasl_callback_t));
1244 if( session_callbacks == NULL ) {
1246 LDAP_LOG( TRANSPORT, ERR,
1247 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1249 Debug( LDAP_DEBUG_ANY,
1250 "slap_sasl_open: SLAP_MALLOC failed", 0, 0, 0 );
1254 conn->c_sasl_extra = session_callbacks;
1256 session_callbacks[cb=0].id = SASL_CB_LOG;
1257 session_callbacks[cb].proc = &slap_sasl_log;
1258 session_callbacks[cb++].context = conn;
1260 session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
1261 session_callbacks[cb].proc = &slap_sasl_authorize;
1262 session_callbacks[cb++].context = conn;
1264 #if SASL_VERSION_MAJOR >= 2
1265 session_callbacks[cb].id = SASL_CB_CANON_USER;
1266 session_callbacks[cb].proc = &slap_sasl_canonicalize;
1267 session_callbacks[cb++].context = conn;
1269 /* XXXX: this should be conditional */
1270 session_callbacks[cb].id = SASL_CB_SERVER_USERDB_CHECKPASS;
1271 session_callbacks[cb].proc = &slap_sasl_checkpass;
1272 session_callbacks[cb++].context = conn;
1275 session_callbacks[cb].id = SASL_CB_LIST_END;
1276 session_callbacks[cb].proc = NULL;
1277 session_callbacks[cb++].context = NULL;
1279 session_callbacks = conn->c_sasl_extra;
1282 conn->c_sasl_layers = 0;
1284 if( global_host == NULL ) {
1285 global_host = ldap_pvt_get_fqdn( NULL );
1288 /* create new SASL context */
1289 #if SASL_VERSION_MAJOR >= 2
1290 if ( conn->c_sock_name.bv_len != 0 &&
1291 strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
1294 iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
1295 /* Convert IPv6 addresses to address;port syntax. */
1296 p = strrchr( iplocalport, ' ' );
1297 /* Convert IPv4 addresses to address;port syntax. */
1298 if ( p == NULL ) p = strchr( iplocalport, ':' );
1303 if ( conn->c_peer_name.bv_len != 0 &&
1304 strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
1307 ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
1308 /* Convert IPv6 addresses to address;port syntax. */
1309 p = strrchr( ipremoteport, ' ' );
1310 /* Convert IPv4 addresses to address;port syntax. */
1311 if ( p == NULL ) p = strchr( ipremoteport, ':' );
1316 sc = sasl_server_new( "ldap", global_host, global_realm,
1317 iplocalport, ipremoteport, session_callbacks, SASL_SUCCESS_DATA, &ctx );
1318 if ( iplocalport != NULL ) {
1319 ch_free( iplocalport );
1321 if ( ipremoteport != NULL ) {
1322 ch_free( ipremoteport );
1325 sc = sasl_server_new( "ldap", global_host, global_realm,
1326 session_callbacks, SASL_SECURITY_LAYER, &ctx );
1329 if( sc != SASL_OK ) {
1331 LDAP_LOG( TRANSPORT, ERR,
1332 "slap_sasl_open: sasl_server_new failed: %d\n", sc, 0, 0 );
1334 Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
1341 conn->c_sasl_authctx = ctx;
1343 if( sc == SASL_OK ) {
1344 sc = sasl_setprop( ctx,
1345 SASL_SEC_PROPS, &sasl_secprops );
1347 if( sc != SASL_OK ) {
1349 LDAP_LOG( TRANSPORT, ERR,
1350 "slap_sasl_open: sasl_setprop failed: %d \n", sc, 0, 0 );
1352 Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
1356 slap_sasl_close( conn );
1361 sc = slap_sasl_err2ldap( sc );
1363 #elif defined(SLAP_BUILTIN_SASL)
1364 /* built-in SASL implementation */
1365 SASL_CTX *ctx = (SASL_CTX *) SLAP_MALLOC(sizeof(SASL_CTX));
1366 if( ctx == NULL ) return -1;
1368 ctx->sc_external_ssf = 0;
1369 ctx->sc_external_id.bv_len = 0;
1370 ctx->sc_external_id.bv_val = NULL;
1372 conn->c_sasl_authctx = ctx;
1378 int slap_sasl_external(
1381 struct berval *auth_id )
1383 #if SASL_VERSION_MAJOR >= 2
1385 sasl_conn_t *ctx = conn->c_sasl_authctx;
1387 if ( ctx == NULL ) {
1388 return LDAP_UNAVAILABLE;
1391 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1393 if ( sc != SASL_OK ) {
1397 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL,
1398 auth_id ? auth_id->bv_val : NULL );
1400 if ( sc != SASL_OK ) {
1404 #elif defined(HAVE_CYRUS_SASL)
1406 sasl_conn_t *ctx = conn->c_sasl_authctx;
1407 sasl_external_properties_t extprops;
1409 if ( ctx == NULL ) {
1410 return LDAP_UNAVAILABLE;
1413 memset( &extprops, '\0', sizeof(extprops) );
1415 extprops.auth_id = auth_id ? auth_id->bv_val : NULL;
1417 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1418 (void *) &extprops );
1420 if ( sc != SASL_OK ) {
1423 #elif defined(SLAP_BUILTIN_SASL)
1424 /* built-in SASL implementation */
1425 SASL_CTX *ctx = conn->c_sasl_authctx;
1426 if ( ctx == NULL ) return LDAP_UNAVAILABLE;
1428 ctx->sc_external_ssf = ssf;
1430 ctx->sc_external_id = *auth_id;
1431 auth_id->bv_len = 0;
1432 auth_id->bv_val = NULL;
1434 ctx->sc_external_id.bv_len = 0;
1435 ctx->sc_external_id.bv_val = NULL;
1439 return LDAP_SUCCESS;
1442 int slap_sasl_reset( Connection *conn )
1444 return LDAP_SUCCESS;
1447 char ** slap_sasl_mechs( Connection *conn )
1449 char **mechs = NULL;
1451 #ifdef HAVE_CYRUS_SASL
1452 sasl_conn_t *ctx = conn->c_sasl_authctx;
1454 if( ctx == NULL ) ctx = conn->c_sasl_sockctx;
1458 SASL_CONST char *mechstr;
1460 sc = sasl_listmech( ctx,
1461 NULL, NULL, ",", NULL,
1462 &mechstr, NULL, NULL );
1464 if( sc != SASL_OK ) {
1466 LDAP_LOG( TRANSPORT, ERR,
1467 "slap_sasl_mechs: sasl_listmech failed: %d\n", sc, 0, 0 );
1469 Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
1476 mechs = ldap_str2charray( mechstr, "," );
1478 #if SASL_VERSION_MAJOR < 2
1482 #elif defined(SLAP_BUILTIN_SASL)
1483 /* builtin SASL implementation */
1484 SASL_CTX *ctx = conn->c_sasl_authctx;
1485 if ( ctx != NULL && ctx->sc_external_id.bv_val ) {
1486 /* should check ssf */
1487 mechs = ldap_str2charray( "EXTERNAL", "," );
1494 int slap_sasl_close( Connection *conn )
1496 #ifdef HAVE_CYRUS_SASL
1497 sasl_conn_t *ctx = conn->c_sasl_authctx;
1500 sasl_dispose( &ctx );
1502 if ( conn->c_sasl_sockctx &&
1503 conn->c_sasl_authctx != conn->c_sasl_sockctx )
1505 ctx = conn->c_sasl_sockctx;
1506 sasl_dispose( &ctx );
1509 conn->c_sasl_authctx = NULL;
1510 conn->c_sasl_sockctx = NULL;
1511 conn->c_sasl_done = 0;
1513 free( conn->c_sasl_extra );
1514 conn->c_sasl_extra = NULL;
1516 #elif defined(SLAP_BUILTIN_SASL)
1517 SASL_CTX *ctx = conn->c_sasl_authctx;
1519 if( ctx->sc_external_id.bv_val ) {
1520 free( ctx->sc_external_id.bv_val );
1521 ctx->sc_external_id.bv_val = NULL;
1524 conn->c_sasl_authctx = NULL;
1528 return LDAP_SUCCESS;
1531 int slap_sasl_bind( Operation *op, SlapReply *rs )
1533 #ifdef HAVE_CYRUS_SASL
1534 sasl_conn_t *ctx = op->o_conn->c_sasl_authctx;
1535 struct berval response;
1536 unsigned reslen = 0;
1540 LDAP_LOG( TRANSPORT, ENTRY,
1541 "sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1542 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1543 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1544 op->o_conn->c_sasl_bind_mech.bv_val,
1545 op->orb_cred.bv_len );
1547 Debug(LDAP_DEBUG_ARGS,
1548 "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
1549 op->o_req_dn.bv_len ? op->o_req_dn.bv_val : "",
1550 op->o_conn->c_sasl_bind_in_progress ? "<continuing>" :
1551 op->o_conn->c_sasl_bind_mech.bv_val,
1552 op->orb_cred.bv_len );
1556 send_ldap_error( op, rs, LDAP_UNAVAILABLE,
1557 "SASL unavailable on this session" );
1561 #if SASL_VERSION_MAJOR >= 2
1562 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1563 sasl_server_start( ctx, mech, cred, clen, resp, rlen )
1564 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1565 sasl_server_step( ctx, cred, clen, resp, rlen )
1567 #define START( ctx, mech, cred, clen, resp, rlen, err ) \
1568 sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
1569 #define STEP( ctx, cred, clen, resp, rlen, err ) \
1570 sasl_server_step( ctx, cred, clen, resp, rlen, err )
1573 if ( !op->o_conn->c_sasl_bind_in_progress ) {
1574 /* If we already authenticated once, must use a new context */
1575 if ( op->o_conn->c_sasl_done ) {
1577 const char *authid = NULL;
1578 #if SASL_VERSION_MAJOR >= 2
1579 sasl_getprop( ctx, SASL_SSF_EXTERNAL, (void *)&ssf );
1580 sasl_getprop( ctx, SASL_AUTH_EXTERNAL, (void *)&authid );
1581 if ( authid ) authid = ch_strdup( authid );
1583 if ( ctx != op->o_conn->c_sasl_sockctx ) {
1584 sasl_dispose( &ctx );
1586 op->o_conn->c_sasl_authctx = NULL;
1588 slap_sasl_open( op->o_conn, 1 );
1589 ctx = op->o_conn->c_sasl_authctx;
1590 #if SASL_VERSION_MAJOR >= 2
1592 sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
1593 sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
1594 ch_free( (char *)authid );
1599 op->o_conn->c_sasl_bind_mech.bv_val,
1600 op->orb_cred.bv_val, op->orb_cred.bv_len,
1601 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1605 op->orb_cred.bv_val, op->orb_cred.bv_len,
1606 (SASL_CONST char **)&response.bv_val, &reslen, &rs->sr_text );
1609 response.bv_len = reslen;
1611 if ( sc == SASL_OK ) {
1612 sasl_ssf_t *ssf = NULL;
1614 op->orb_edn = op->o_conn->c_sasl_dn;
1615 op->o_conn->c_sasl_dn.bv_val = NULL;
1616 op->o_conn->c_sasl_dn.bv_len = 0;
1617 op->o_conn->c_sasl_done = 1;
1619 rs->sr_err = LDAP_SUCCESS;
1621 (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
1622 op->orb_ssf = ssf ? *ssf : 0;
1626 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1627 op->o_conn->c_sasl_layers++;
1629 /* If there's an old layer, set sockctx to NULL to
1630 * tell connection_read() to wait for us to finish.
1631 * Otherwise there is a race condition: we have to
1632 * send the Bind response using the old security
1633 * context and then remove it before reading any
1636 if ( op->o_conn->c_sasl_sockctx ) {
1637 ctx = op->o_conn->c_sasl_sockctx;
1638 op->o_conn->c_sasl_sockctx = NULL;
1640 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1642 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1645 /* Must send response using old security layer */
1646 if (response.bv_len) rs->sr_sasldata = &response;
1647 send_ldap_sasl( op, rs );
1649 /* Now dispose of the old security layer.
1652 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
1653 ldap_pvt_sasl_remove( op->o_conn->c_sb );
1654 op->o_conn->c_sasl_sockctx = op->o_conn->c_sasl_authctx;
1655 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
1656 sasl_dispose( &ctx );
1658 } else if ( sc == SASL_CONTINUE ) {
1659 rs->sr_err = LDAP_SASL_BIND_IN_PROGRESS,
1660 rs->sr_sasldata = &response;
1661 send_ldap_sasl( op, rs );
1664 #if SASL_VERSION_MAJOR >= 2
1665 rs->sr_text = sasl_errdetail( ctx );
1667 rs->sr_err = slap_sasl_err2ldap( sc ),
1668 send_ldap_result( op, rs );
1671 #if SASL_VERSION_MAJOR < 2
1672 if( response.bv_len ) {
1673 ch_free( response.bv_val );
1678 LDAP_LOG( TRANSPORT, RESULTS, "slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0 );
1680 Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rs->sr_err, 0, 0);
1683 #elif defined(SLAP_BUILTIN_SASL)
1684 /* built-in SASL implementation */
1685 SASL_CTX *ctx = op->o_conn->c_sasl_authctx;
1687 if ( ctx == NULL ) {
1688 send_ldap_error( op, rs, LDAP_OTHER,
1689 "Internal SASL Error" );
1691 } else if ( bvmatch( &ext_bv, &op->o_conn->c_sasl_bind_mech ) ) {
1694 if( op->orb_cred.bv_len ) {
1695 rs->sr_text = "proxy authorization not support";
1696 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1697 send_ldap_result( op, rs );
1700 op->orb_edn = ctx->sc_external_id;
1701 rs->sr_err = LDAP_SUCCESS;
1702 rs->sr_sasldata = NULL;
1703 send_ldap_sasl( op, rs );
1707 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1708 "requested SASL mechanism not supported" );
1711 send_ldap_error( op, rs, LDAP_AUTH_METHOD_NOT_SUPPORTED,
1712 "SASL not supported" );
1718 char* slap_sasl_secprops( const char *in )
1720 #ifdef HAVE_CYRUS_SASL
1721 int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
1723 return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
1725 return "SASL not supported";
1729 #ifdef HAVE_CYRUS_SASL
1731 slap_sasl_setpass( Operation *op, SlapReply *rs )
1733 struct berval id = { 0, NULL }; /* needs to come from connection */
1734 struct berval new = { 0, NULL };
1735 struct berval old = { 0, NULL };
1737 assert( ber_bvcmp( &slap_EXOP_MODIFY_PASSWD, &op->ore_reqoid ) == 0 );
1739 rs->sr_err = sasl_getprop( op->o_conn->c_sasl_authctx, SASL_USERNAME,
1740 (SASL_CONST void **)&id.bv_val );
1742 if( rs->sr_err != SASL_OK ) {
1743 rs->sr_text = "unable to retrieve SASL username";
1744 rs->sr_err = LDAP_OTHER;
1749 LDAP_LOG( BACKEND, ENTRY,
1750 "slap_sasl_setpass: \"%s\"\n",
1751 id.bv_val ? id.bv_val : "", 0, 0);
1753 Debug( LDAP_DEBUG_ARGS, "==> slap_sasl_setpass: \"%s\"\n",
1754 id.bv_val ? id.bv_val : "", 0, 0 );
1757 rs->sr_err = slap_passwd_parse( op->ore_reqdata,
1758 NULL, &old, &new, &rs->sr_text );
1760 if( rs->sr_err != LDAP_SUCCESS ) {
1764 if( new.bv_len == 0 ) {
1765 slap_passwd_generate(&new);
1767 if( new.bv_len == 0 ) {
1768 rs->sr_text = "password generation failed.";
1769 rs->sr_err = LDAP_OTHER;
1773 rs->sr_rspdata = slap_passwd_return( &new );
1776 #if SASL_VERSION_MAJOR < 2
1777 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx,
1778 id.bv_val, new.bv_val, new.bv_len, 0, &rs->sr_text );
1780 rs->sr_err = sasl_setpass( op->o_conn->c_sasl_authctx, id.bv_val,
1781 new.bv_val, new.bv_len, old.bv_val, old.bv_len, 0 );
1782 if( rs->sr_err != SASL_OK ) {
1783 rs->sr_text = sasl_errdetail( op->o_conn->c_sasl_authctx );
1786 switch(rs->sr_err) {
1788 rs->sr_err = LDAP_SUCCESS;
1798 rs->sr_err = LDAP_OTHER;
1804 #endif /* HAVE_CYRUS_SASL */
1806 /* Take any sort of identity string and return a DN with the "dn:" prefix. The
1807 * string returned in *dn is in its own allocated memory, and must be free'd
1808 * by the calling process. -Mark Adamson, Carnegie Mellon
1810 * The "dn:" prefix is no longer used anywhere inside slapd. It is only used
1811 * on strings passed in directly from SASL. -Howard Chu, Symas Corp.
1818 int slap_sasl_getdn( Connection *conn, Operation *op, char *id, int len,
1819 char *user_realm, struct berval *dn, int flags )
1821 int rc, is_dn = SET_NONE, do_norm = 1;
1822 struct berval dn2, *mech;
1827 LDAP_LOG( TRANSPORT, ENTRY,
1828 "slap_sasl_getdn: conn %d id=%s [len=%d]\n",
1829 conn->c_connid, id ? (*id ? id : "<empty>") : "NULL", len );
1831 Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s [len=%d]\n",
1832 id ? ( *id ? id : "<empty>" ) : "NULL", len, 0 );
1836 op = conn->c_sasl_bindop;
1843 if ( len == 0 ) len = strlen( id );
1845 /* Blatantly anonymous ID */
1846 if ( len == sizeof("anonymous") - 1 &&
1847 !strcasecmp( id, "anonymous" ) ) {
1848 return( LDAP_SUCCESS );
1854 if ( conn->c_sasl_bind_mech.bv_len ) {
1855 mech = &conn->c_sasl_bind_mech;
1857 mech = &conn->c_authmech;
1860 /* An authcID needs to be converted to authzID form. Set the
1861 * values directly into *dn; they will be normalized later. (and
1862 * normalizing always makes a new copy.) An ID from a TLS certificate
1863 * is already normalized, so copy it and skip normalization.
1865 if( flags & SLAP_GETDN_AUTHCID ) {
1866 if( bvmatch( mech, &ext_bv )) {
1867 /* EXTERNAL DNs are already normalized */
1870 ber_str2bv_x( id, len, 1, dn, op->o_tmpmemctx );
1873 /* convert to u:<username> form */
1879 if( is_dn == SET_NONE ) {
1880 if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
1884 } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
1891 /* No other possibilities from here */
1892 if( is_dn == SET_NONE ) {
1895 return( LDAP_INAPPROPRIATE_AUTH );
1898 /* Username strings */
1899 if( is_dn == SET_U ) {
1901 struct berval realm = { 0, NULL }, c1 = *dn;
1903 len = dn->bv_len + sizeof("uid=")-1 + sizeof(",cn=auth")-1;
1905 if( user_realm && *user_realm ) {
1906 realm.bv_val = user_realm;
1907 realm.bv_len = strlen( user_realm );
1908 len += realm.bv_len + sizeof(",cn=") - 1;
1911 if( mech->bv_len ) {
1912 len += mech->bv_len + sizeof(",cn=")-1;
1915 /* Build the new dn */
1916 dn->bv_val = sl_malloc( len+1, op->o_tmpmemctx );
1917 if( dn->bv_val == NULL ) {
1919 LDAP_LOG( TRANSPORT, ERR,
1920 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1922 Debug( LDAP_DEBUG_ANY,
1923 "slap_sasl_getdn: SLAP_MALLOC failed", 0, 0, 0 );
1927 p = lutil_strcopy( dn->bv_val, "uid=" );
1928 p = lutil_strncopy( p, c1.bv_val, c1.bv_len );
1930 if( realm.bv_len ) {
1931 p = lutil_strcopy( p, ",cn=" );
1932 p = lutil_strncopy( p, realm.bv_val, realm.bv_len );
1935 if( mech->bv_len ) {
1936 p = lutil_strcopy( p, ",cn=" );
1937 p = lutil_strcopy( p, mech->bv_val );
1939 p = lutil_strcopy( p, ",cn=auth" );
1940 dn->bv_len = p - dn->bv_val;
1943 LDAP_LOG( TRANSPORT, ENTRY,
1944 "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val, 0, 0 );
1946 Debug( LDAP_DEBUG_TRACE, "slap_sasl_getdn: u:id converted to %s\n", dn->bv_val,0,0 );
1950 /* Dup the DN in any case, so we don't risk
1951 * leaks or dangling pointers later,
1952 * and the DN value is '\0' terminated */
1953 ber_dupbv_x( &dn2, dn, op->o_tmpmemctx );
1954 dn->bv_val = dn2.bv_val;
1957 /* All strings are in DN form now. Normalize if needed. */
1959 rc = dnNormalize( 0, NULL, NULL, dn, &dn2, op->o_tmpmemctx );
1961 /* User DNs were constructed above and must be freed now */
1962 sl_free( dn->bv_val, op->o_tmpmemctx );
1964 if ( rc != LDAP_SUCCESS ) {
1972 /* Run thru regexp */
1973 slap_sasl2dn( op, dn, &dn2, flags );
1975 sl_free( dn->bv_val, op->o_tmpmemctx );
1978 LDAP_LOG( TRANSPORT, ENTRY,
1979 "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val, 0, 0 );
1981 Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
1986 return( LDAP_SUCCESS );