2 * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
3 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
5 * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
7 * This work has been developed to fulfill the requirements
8 * of SysNet s.n.c. <http:www.sys-net.it> and it has been donated
9 * to the OpenLDAP Foundation in the hope that it may be useful
10 * to the Open Source community, but WITHOUT ANY WARRANTY.
12 * Permission is granted to anyone to use this software for any purpose
13 * on any computer system, and to alter it and redistribute it, subject
14 * to the following restrictions:
16 * 1. The author and SysNet s.n.c. are not responsible for the consequences
17 * of use of this software, no matter how awful, even if they arise from
20 * 2. The origin of this software must not be misrepresented, either by
21 * explicit claim or by omission. Since few users ever read sources,
22 * credits should appear in the documentation.
24 * 3. Altered versions must be plainly marked as such, and must not be
25 * misrepresented as being the original software. Since few users
26 * ever read sources, credits should appear in the documentation.
27 * SysNet s.n.c. cannot be responsible for the consequences of the
30 * 4. This notice may not be removed or altered.
33 * This software is based on the backend back-ldap, implemented
34 * by Howard Chu <hyc@highlandsun.com>, and modified by Mark Valence
35 * <kurash@sassafras.com>, Pierangelo Masarati <ando@sys-net.it> and other
36 * contributors. The contribution of the original software to the present
37 * implementation is acknowledged in this copyright statement.
39 * A special acknowledgement goes to Howard for the overall architecture
40 * (and for borrowing large pieces of code), and to Mark, who implemented
41 * from scratch the attribute/objectclass mapping.
43 * The original copyright statement follows.
45 * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
47 * Permission is granted to anyone to use this software for any purpose
48 * on any computer system, and to alter it and redistribute it, subject
49 * to the following restrictions:
51 * 1. The author is not responsible for the consequences of use of this
52 * software, no matter how awful, even if they arise from flaws in it.
54 * 2. The origin of this software must not be misrepresented, either by
55 * explicit claim or by omission. Since few users ever read sources,
56 * credits should appear in the documentation.
58 * 3. Altered versions must be plainly marked as such, and must not be
59 * misrepresented as being the original software. Since few users
60 * ever read sources, credits should appear in the
63 * 4. This notice may not be removed or altered.
71 #include <ac/socket.h>
72 #include <ac/string.h>
77 #include "../back-ldap/back-ldap.h"
78 #include "back-meta.h"
80 static LDAP_REBIND_PROC meta_back_rebind;
83 meta_back_do_single_bind(
95 meta_back_bind( Operation *op, SlapReply *rs )
107 struct metainfo *li = ( struct metainfo * )op->o_bd->be_private;
110 int rc = -1, i, gotit = 0, ndnlen, isroot = 0;
111 int op_type = META_OP_ALLOW_MULTIPLE;
112 int err = LDAP_SUCCESS;
114 struct berval *realdn = &op->o_req_dn;
115 struct berval *realndn = &op->o_req_ndn;
116 struct berval *realcred = &op->oq_bind.rb_cred;
117 int realmethod = op->oq_bind.rb_method;
120 LDAP_LOG( BACK_META, ENTRY, "meta_back_bind: dn: %s.\n",
121 op->o_req_dn.bv_val, 0, 0 );
122 #else /* !NEW_LOGGING */
123 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s",
124 op->o_req_dn.bv_val, "", "" );
125 #endif /* !NEW_LOGGING */
127 if ( op->oq_bind.rb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op ) ) {
129 ber_dupbv( &op->oq_bind.rb_edn, be_root_dn( op->o_bd ) );
130 op_type = META_OP_REQUIRE_ALL;
132 lc = meta_back_getconn( li, op, rs, op_type,
133 &op->o_req_ndn, NULL );
136 LDAP_LOG( BACK_META, NOTICE,
137 "meta_back_bind: no target for dn %s.\n", dn->bv_val, 0, 0 );
138 #else /* !NEW_LOGGING */
139 Debug( LDAP_DEBUG_ANY,
140 "meta_back_bind: no target for dn %s.\n%s%s",
141 op->o_req_dn.bv_val, "", "");
142 #endif /* !NEW_LOGGING */
144 send_ldap_result( op, rs );
149 * Each target is scanned ...
151 lc->bound_target = META_BOUND_NONE;
152 ndnlen = op->o_req_ndn.bv_len;
153 for ( i = 0; i < li->ntargets; i++ ) {
157 * Skip non-candidates
159 if ( lc->conns[ i ].candidate != META_CANDIDATE ) {
167 * A bind operation is expected to have
168 * ONE CANDIDATE ONLY!
171 LDAP_LOG( BACK_META, WARNING,
172 "==>meta_back_bind: more than one"
173 " candidate is attempting to bind"
174 " ...\n" , 0, 0, 0 );
175 #else /* !NEW_LOGGING */
176 Debug( LDAP_DEBUG_ANY,
177 "==>meta_back_bind: more than one"
178 " candidate is attempting to bind"
181 #endif /* !NEW_LOGGING */
184 if ( isroot && li->targets[ i ]->pseudorootdn.bv_val != NULL ) {
185 realdn = &li->targets[ i ]->pseudorootdn;
186 realndn = &li->targets[ i ]->pseudorootdn;
187 realcred = &li->targets[ i ]->pseudorootpw;
188 realmethod = LDAP_AUTH_SIMPLE;
190 realdn = &op->o_req_dn;
191 realndn = &op->o_req_ndn;
192 realcred = &op->oq_bind.rb_cred;
193 realmethod = op->oq_bind.rb_method;
196 lerr = meta_back_do_single_bind( li, lc, op,
197 realdn, realndn, realcred, realmethod, i );
198 if ( lerr != LDAP_SUCCESS ) {
200 ( void )meta_clear_one_candidate( &lc->conns[ i ], 1 );
207 lc->bound_target = META_BOUND_ALL;
211 * rc is LDAP_SUCCESS if at least one bind succeeded,
212 * err is the last error that occurred during a bind;
213 * if at least (and at most?) one bind succeedes, fine.
215 if ( rc != LDAP_SUCCESS /* && err != LDAP_SUCCESS */ ) {
218 * deal with bind failure ...
222 * no target was found within the naming context,
223 * so bind must fail with invalid credentials
225 if ( err == LDAP_SUCCESS && gotit == 0 ) {
226 err = LDAP_INVALID_CREDENTIALS;
229 rs->sr_err = ldap_back_map_result( err );
230 send_ldap_result( op, rs );
238 * meta_back_do_single_bind
240 * attempts to perform a bind with creds
243 meta_back_do_single_bind(
254 struct berval mdn = { 0, NULL };
259 * Rewrite the bind dn if needed
261 switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
262 "bindDn", dn->bv_val, lc->conn, &mdn.bv_val ) ) {
263 case REWRITE_REGEXEC_OK:
264 if ( mdn.bv_val == NULL ) {
268 LDAP_LOG( BACK_META, DETAIL1,
269 "[rw] bindDn: \"%s\" -> \"%s\"\n", dn->bv_val, mdn.bv_val, 0 );
270 #else /* !NEW_LOGGING */
271 Debug( LDAP_DEBUG_ARGS,
272 "rw> bindDn: \"%s\" -> \"%s\"\n%s",
273 dn->bv_val, mdn.bv_val, "" );
274 #endif /* !NEW_LOGGING */
277 case REWRITE_REGEXEC_UNWILLING:
278 return LDAP_UNWILLING_TO_PERFORM;
280 case REWRITE_REGEXEC_ERR:
285 rc = ldap_set_option( lc->conns[ candidate ].ld,
286 LDAP_OPT_SERVER_CONTROLS, op->o_ctrls );
287 if ( rc != LDAP_SUCCESS ) {
288 rc = ldap_back_map_result( rc );
293 rc = ldap_sasl_bind(lc->conns[ candidate ].ld, mdn.bv_val,
294 LDAP_SASL_SIMPLE, cred, op->o_ctrls, NULL, &msgid);
295 if ( rc != LDAP_SUCCESS ) {
296 rc = ldap_back_map_result( rc );
298 ber_dupbv( &lc->conns[ candidate ].bound_dn, dn );
299 lc->conns[ candidate ].bound = META_BOUND;
300 lc->bound_target = candidate;
302 if ( li->savecred ) {
303 if ( lc->conns[ candidate ].cred.bv_val )
304 ch_free( lc->conns[ candidate ].cred.bv_val );
305 ber_dupbv( &lc->conns[ candidate ].cred, cred );
306 ldap_set_rebind_proc( lc->conns[ candidate ].ld,
308 &lc->conns[ candidate ] );
311 if ( li->cache.ttl != META_DNCACHE_DISABLED
312 && ndn->bv_len != 0 ) {
313 ( void )meta_dncache_update_entry( &li->cache,
320 if ( mdn.bv_val != dn->bv_val ) {
331 meta_back_dobind( struct metaconn *lc, Operation *op )
333 struct metasingleconn *lsc;
337 * all the targets are bound as pseudoroot
339 if ( lc->bound_target == META_BOUND_ALL ) {
343 for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
347 * Not a candidate or something wrong with this target ...
349 if ( lsc->ld == NULL ) {
354 * If required, set controls
357 if ( ldap_set_option( lsc->ld, LDAP_OPT_SERVER_CONTROLS,
358 op->o_ctrls ) != LDAP_SUCCESS ) {
359 ( void )meta_clear_one_candidate( lsc, 1 );
365 * If the target is already bound it is skipped
367 if ( lsc->bound == META_BOUND && lc->bound_target == i ) {
373 * Otherwise an anonymous bind is performed
374 * (note: if the target was already bound, the anonymous
375 * bind clears the previous bind).
377 if ( lsc->bound_dn.bv_val ) {
378 ch_free( lsc->bound_dn.bv_val );
379 lsc->bound_dn.bv_val = NULL;
380 lsc->bound_dn.bv_len = 0;
384 rc = ldap_bind_s( lsc->ld, 0, NULL, LDAP_AUTH_SIMPLE );
385 if ( rc != LDAP_SUCCESS ) {
388 LDAP_LOG( BACK_META, WARNING,
389 "meta_back_dobind: (anonymous)"
391 " with error %d (%s)\n",
392 rc, ldap_err2string( rc ), 0 );
393 #else /* !NEW_LOGGING */
394 Debug( LDAP_DEBUG_ANY,
395 "==>meta_back_dobind: (anonymous)"
397 " with error %d (%s)\n",
398 rc, ldap_err2string( rc ), 0 );
399 #endif /* !NEW_LOGGING */
402 * null cred bind should always succeed
403 * as anonymous, so a failure means
404 * the target is no longer candidate possibly
405 * due to technical reasons (remote host down?)
406 * so better clear the handle
408 ( void )meta_clear_one_candidate( lsc, 1 );
412 lsc->bound = META_ANONYMOUS;
423 meta_back_is_valid( struct metaconn *lc, int candidate )
425 struct metasingleconn *lsc;
430 if ( candidate < 0 ) {
434 for ( i = 0, lsc = lc->conns; !META_LAST(lsc) && i < candidate;
437 if ( !META_LAST(lsc) ) {
438 return( lsc->ld != NULL );
447 * This is a callback used for chasing referrals using the same
448 * credentials as the original user on this session.
451 meta_back_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request,
452 ber_int_t msgid, void *params )
454 struct metasingleconn *lc = params;
456 return ldap_bind_s( ld, lc->bound_dn.bv_val, lc->cred.bv_val,
461 * FIXME: error return must be handled in a cleaner way ...
464 meta_back_op_result( struct metaconn *lc, Operation *op, SlapReply *rs )
466 int i, rerr = LDAP_SUCCESS;
467 struct metasingleconn *lsc;
471 for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
472 int err = LDAP_SUCCESS;
476 ldap_get_option( lsc->ld, LDAP_OPT_ERROR_NUMBER, &err );
477 if ( err != LDAP_SUCCESS ) {
479 * better check the type of error. In some cases
480 * (search ?) it might be better to return a
481 * success if at least one of the targets gave
482 * positive result ...
484 ldap_get_option( lsc->ld,
485 LDAP_OPT_ERROR_STRING, &msg );
486 ldap_get_option( lsc->ld,
487 LDAP_OPT_MATCHED_DN, &match );
488 err = ldap_back_map_result( err );
491 LDAP_LOG( BACK_META, RESULTS,
492 "meta_back_op_result: target"
493 " <%d> sending msg \"%s\""
494 " (matched \"%s\")\n",
495 i, ( msg ? msg : "" ),
496 ( match ? match : "" ) );
497 #else /* !NEW_LOGGING */
498 Debug(LDAP_DEBUG_ANY,
499 "==> meta_back_op_result: target"
500 " <%d> sending msg \"%s\""
501 " (matched \"%s\")\n",
502 i, ( msg ? msg : "" ),
503 ( match ? match : "" ) );
504 #endif /* !NEW_LOGGING */
507 * FIXME: need to rewrite "match" (need rwinfo)
519 /* better test the pointers before freeing? */
531 rs->sr_matched = rmatch;
532 send_ldap_result( op, rs );
534 rs->sr_matched = NULL;
536 return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );