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(
90 meta_back_bind( Operation *op, SlapReply *rs )
92 struct metainfo *li = ( struct metainfo * )op->o_bd->be_private;
95 int rc = -1, i, gotit = 0, ndnlen, isroot = 0;
96 int op_type = META_OP_ALLOW_MULTIPLE;
97 int err = LDAP_SUCCESS;
100 LDAP_LOG( BACK_META, ENTRY, "meta_back_bind: dn: %s.\n",
101 op->o_req_dn.bv_val, 0, 0 );
102 #else /* !NEW_LOGGING */
103 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s",
104 op->o_req_dn.bv_val, "", "" );
105 #endif /* !NEW_LOGGING */
107 if ( op->oq_bind.rb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op ) ) {
109 ber_dupbv( &op->oq_bind.rb_edn, be_root_dn( op->o_bd ) );
110 op_type = META_OP_REQUIRE_ALL;
112 lc = meta_back_getconn( op, rs, op_type,
113 &op->o_req_ndn, NULL );
116 LDAP_LOG( BACK_META, NOTICE,
117 "meta_back_bind: no target for dn %s.\n", dn->bv_val, 0, 0 );
118 #else /* !NEW_LOGGING */
119 Debug( LDAP_DEBUG_ANY,
120 "meta_back_bind: no target for dn %s.\n%s%s",
121 op->o_req_dn.bv_val, "", "");
122 #endif /* !NEW_LOGGING */
124 send_ldap_result( op, rs );
129 * Each target is scanned ...
131 lc->bound_target = META_BOUND_NONE;
132 ndnlen = op->o_req_ndn.bv_len;
133 for ( i = 0; i < li->ntargets; i++ ) {
135 struct berval orig_dn = op->o_req_dn;
136 struct berval orig_ndn = op->o_req_ndn;
137 struct berval orig_cred = op->oq_bind.rb_cred;
138 int orig_method = op->oq_bind.rb_method;
142 * Skip non-candidates
144 if ( lc->conns[ i ].candidate != META_CANDIDATE ) {
152 * A bind operation is expected to have
153 * ONE CANDIDATE ONLY!
156 LDAP_LOG( BACK_META, WARNING,
157 "==>meta_back_bind: more than one"
158 " candidate is attempting to bind"
159 " ...\n" , 0, 0, 0 );
160 #else /* !NEW_LOGGING */
161 Debug( LDAP_DEBUG_ANY,
162 "==>meta_back_bind: more than one"
163 " candidate is attempting to bind"
166 #endif /* !NEW_LOGGING */
169 if ( isroot && li->targets[ i ]->pseudorootdn.bv_val != NULL ) {
170 op->o_req_dn = li->targets[ i ]->pseudorootdn;
171 op->o_req_ndn = li->targets[ i ]->pseudorootdn;
172 op->oq_bind.rb_cred = li->targets[ i ]->pseudorootpw;
173 op->oq_bind.rb_method = LDAP_AUTH_SIMPLE;
176 lerr = meta_back_do_single_bind( lc, op, i );
177 if ( lerr != LDAP_SUCCESS ) {
179 ( void )meta_clear_one_candidate( &lc->conns[ i ], 1 );
184 op->o_req_dn = orig_dn;
185 op->o_req_ndn = orig_ndn;
186 op->oq_bind.rb_cred = orig_cred;
187 op->oq_bind.rb_method = orig_method;
191 lc->bound_target = META_BOUND_ALL;
195 * rc is LDAP_SUCCESS if at least one bind succeeded,
196 * err is the last error that occurred during a bind;
197 * if at least (and at most?) one bind succeedes, fine.
199 if ( rc != LDAP_SUCCESS /* && err != LDAP_SUCCESS */ ) {
202 * deal with bind failure ...
206 * no target was found within the naming context,
207 * so bind must fail with invalid credentials
209 if ( err == LDAP_SUCCESS && gotit == 0 ) {
210 err = LDAP_INVALID_CREDENTIALS;
213 rs->sr_err = ldap_back_map_result( err );
214 send_ldap_result( op, rs );
222 * meta_back_do_single_bind
224 * attempts to perform a bind with creds
227 meta_back_do_single_bind(
233 struct metainfo *li = ( struct metainfo * )op->o_bd->be_private;
234 struct berval mdn = { 0, NULL };
239 * Rewrite the bind dn if needed
241 switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
242 "bindDn", op->o_req_dn.bv_val,
243 lc->conn, &mdn.bv_val ) ) {
244 case REWRITE_REGEXEC_OK:
245 if ( mdn.bv_val == NULL ) {
248 mdn.bv_len = strlen( mdn.bv_val );
251 LDAP_LOG( BACK_META, DETAIL1,
252 "[rw] bindDn: \"%s\" -> \"%s\"\n",
253 op->o_req_dn.bv_val, mdn.bv_val, 0 );
254 #else /* !NEW_LOGGING */
255 Debug( LDAP_DEBUG_ARGS,
256 "rw> bindDn: \"%s\" -> \"%s\"\n%s",
257 op->o_req_dn.bv_val, mdn.bv_val, "" );
258 #endif /* !NEW_LOGGING */
261 case REWRITE_REGEXEC_UNWILLING:
262 return LDAP_UNWILLING_TO_PERFORM;
264 case REWRITE_REGEXEC_ERR:
269 rc = ldap_set_option( lc->conns[ candidate ].ld,
270 LDAP_OPT_SERVER_CONTROLS, op->o_ctrls );
271 if ( rc != LDAP_SUCCESS ) {
272 rc = ldap_back_map_result( rc );
277 rc = ldap_sasl_bind(lc->conns[ candidate ].ld, mdn.bv_val,
278 LDAP_SASL_SIMPLE, &op->oq_bind.rb_cred,
279 op->o_ctrls, NULL, &msgid);
280 if ( rc != LDAP_SUCCESS ) {
281 rc = ldap_back_map_result( rc );
285 * FIXME: handle response!!!
287 ber_dupbv( &lc->conns[ candidate ].bound_dn, &op->o_req_dn );
288 lc->conns[ candidate ].bound = META_BOUND;
289 lc->bound_target = candidate;
291 if ( li->savecred ) {
292 if ( lc->conns[ candidate ].cred.bv_val )
293 ch_free( lc->conns[ candidate ].cred.bv_val );
294 ber_dupbv( &lc->conns[ candidate ].cred,
295 &op->oq_bind.rb_cred );
296 ldap_set_rebind_proc( lc->conns[ candidate ].ld,
298 &lc->conns[ candidate ] );
301 if ( li->cache.ttl != META_DNCACHE_DISABLED
302 && op->o_req_ndn.bv_len != 0 ) {
303 ( void )meta_dncache_update_entry( &li->cache,
304 &op->o_req_ndn, candidate );
310 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
321 meta_back_dobind( struct metaconn *lc, Operation *op )
323 struct metasingleconn *lsc;
327 * all the targets are bound as pseudoroot
329 if ( lc->bound_target == META_BOUND_ALL ) {
333 for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
337 * Not a candidate or something wrong with this target ...
339 if ( lsc->ld == NULL ) {
344 * If required, set controls
347 if ( ldap_set_option( lsc->ld, LDAP_OPT_SERVER_CONTROLS,
348 op->o_ctrls ) != LDAP_SUCCESS ) {
349 ( void )meta_clear_one_candidate( lsc, 1 );
355 * If the target is already bound it is skipped
357 if ( lsc->bound == META_BOUND && lc->bound_target == i ) {
363 * Otherwise an anonymous bind is performed
364 * (note: if the target was already bound, the anonymous
365 * bind clears the previous bind).
367 if ( lsc->bound_dn.bv_val ) {
368 ch_free( lsc->bound_dn.bv_val );
369 lsc->bound_dn.bv_val = NULL;
370 lsc->bound_dn.bv_len = 0;
374 rc = ldap_bind_s( lsc->ld, 0, NULL, LDAP_AUTH_SIMPLE );
375 if ( rc != LDAP_SUCCESS ) {
378 LDAP_LOG( BACK_META, WARNING,
379 "meta_back_dobind: (anonymous)"
381 " with error %d (%s)\n",
382 rc, ldap_err2string( rc ), 0 );
383 #else /* !NEW_LOGGING */
384 Debug( LDAP_DEBUG_ANY,
385 "==>meta_back_dobind: (anonymous)"
387 " with error %d (%s)\n",
388 rc, ldap_err2string( rc ), 0 );
389 #endif /* !NEW_LOGGING */
392 * null cred bind should always succeed
393 * as anonymous, so a failure means
394 * the target is no longer candidate possibly
395 * due to technical reasons (remote host down?)
396 * so better clear the handle
398 ( void )meta_clear_one_candidate( lsc, 1 );
402 lsc->bound = META_ANONYMOUS;
413 meta_back_is_valid( struct metaconn *lc, int candidate )
415 struct metasingleconn *lsc;
420 if ( candidate < 0 ) {
424 for ( i = 0, lsc = lc->conns; !META_LAST(lsc) && i < candidate;
427 if ( !META_LAST(lsc) ) {
428 return( lsc->ld != NULL );
437 * This is a callback used for chasing referrals using the same
438 * credentials as the original user on this session.
441 meta_back_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request,
442 ber_int_t msgid, void *params )
444 struct metasingleconn *lc = params;
446 return ldap_bind_s( ld, lc->bound_dn.bv_val, lc->cred.bv_val,
451 * FIXME: error return must be handled in a cleaner way ...
454 meta_back_op_result( struct metaconn *lc, Operation *op, SlapReply *rs )
456 int i, rerr = LDAP_SUCCESS;
457 struct metasingleconn *lsc;
461 for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
462 int err = LDAP_SUCCESS;
466 ldap_get_option( lsc->ld, LDAP_OPT_ERROR_NUMBER, &err );
467 if ( err != LDAP_SUCCESS ) {
469 * better check the type of error. In some cases
470 * (search ?) it might be better to return a
471 * success if at least one of the targets gave
472 * positive result ...
474 ldap_get_option( lsc->ld,
475 LDAP_OPT_ERROR_STRING, &msg );
476 ldap_get_option( lsc->ld,
477 LDAP_OPT_MATCHED_DN, &match );
478 err = ldap_back_map_result( err );
481 LDAP_LOG( BACK_META, RESULTS,
482 "meta_back_op_result: target"
483 " <%d> sending msg \"%s\""
484 " (matched \"%s\")\n",
485 i, ( msg ? msg : "" ),
486 ( match ? match : "" ) );
487 #else /* !NEW_LOGGING */
488 Debug(LDAP_DEBUG_ANY,
489 "==> meta_back_op_result: target"
490 " <%d> sending msg \"%s\""
491 " (matched \"%s\")\n",
492 i, ( msg ? msg : "" ),
493 ( match ? match : "" ) );
494 #endif /* !NEW_LOGGING */
497 * FIXME: need to rewrite "match" (need rwinfo)
509 /* better test the pointers before freeing? */
521 rs->sr_matched = rmatch;
522 send_ldap_result( op, rs );
524 rs->sr_matched = NULL;
526 return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );