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(
106 struct metainfo *li = ( struct metainfo * )be->be_private;
109 int rc = -1, i, gotit = 0, ndnlen, isroot = 0;
110 int op_type = META_OP_ALLOW_MULTIPLE;
111 int err = LDAP_SUCCESS;
113 struct berval *realdn = dn;
114 struct berval *realndn = ndn;
115 struct berval *realcred = cred;
116 int realmethod = method;
119 LDAP_LOG( BACK_META, ENTRY,
120 "meta_back_bind: dn: %s.\n", dn->bv_val, 0, 0 );
121 #else /* !NEW_LOGGING */
122 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s", dn->bv_val, "", "" );
123 #endif /* !NEW_LOGGING */
125 if ( method == LDAP_AUTH_SIMPLE
126 && be_isroot_pw( be, conn, ndn, cred ) ) {
128 ber_dupbv( edn, be_root_dn( be ) );
129 op_type = META_OP_REQUIRE_ALL;
131 lc = meta_back_getconn( li, conn, op, op_type, ndn, NULL );
134 LDAP_LOG( BACK_META, NOTICE,
135 "meta_back_bind: no target for dn %s.\n", dn->bv_val, 0, 0 );
136 #else /* !NEW_LOGGING */
137 Debug( LDAP_DEBUG_ANY,
138 "meta_back_bind: no target for dn %s.\n%s%s",
140 #endif /* !NEW_LOGGING */
141 send_ldap_result( conn, op, LDAP_OTHER,
142 NULL, NULL, NULL, NULL );
147 * Each target is scanned ...
149 lc->bound_target = META_BOUND_NONE;
150 ndnlen = ndn->bv_len;
151 for ( i = 0; i < li->ntargets; i++ ) {
155 * Skip non-candidates
157 if ( lc->conns[ i ].candidate != META_CANDIDATE ) {
165 * A bind operation is expected to have
166 * ONE CANDIDATE ONLY!
169 LDAP_LOG( BACK_META, WARNING,
170 "==>meta_back_bind: more than one"
171 " candidate is attempting to bind"
172 " ...\n" , 0, 0, 0 );
173 #else /* !NEW_LOGGING */
174 Debug( LDAP_DEBUG_ANY,
175 "==>meta_back_bind: more than one"
176 " candidate is attempting to bind"
179 #endif /* !NEW_LOGGING */
182 if ( isroot && li->targets[ i ]->pseudorootdn.bv_val != NULL ) {
183 realdn = &li->targets[ i ]->pseudorootdn;
184 realndn = &li->targets[ i ]->pseudorootdn;
185 realcred = &li->targets[ i ]->pseudorootpw;
186 realmethod = LDAP_AUTH_SIMPLE;
194 lerr = meta_back_do_single_bind( li, lc, op,
195 realdn, realndn, realcred, realmethod, i );
196 if ( lerr != LDAP_SUCCESS ) {
198 ( void )meta_clear_one_candidate( &lc->conns[ i ], 1 );
205 lc->bound_target = META_BOUND_ALL;
209 * rc is LDAP_SUCCESS if at least one bind succeeded,
210 * err is the last error that occurred during a bind;
211 * if at least (and at most?) one bind succeedes, fine.
213 if ( rc != LDAP_SUCCESS /* && err != LDAP_SUCCESS */ ) {
216 * deal with bind failure ...
220 * no target was found within the naming context,
221 * so bind must fail with invalid credentials
223 if ( err == LDAP_SUCCESS && gotit == 0 ) {
224 err = LDAP_INVALID_CREDENTIALS;
227 err = ldap_back_map_result( err );
228 send_ldap_result( conn, op, err, NULL, NULL, NULL, NULL );
236 * meta_back_do_single_bind
238 * attempts to perform a bind with creds
241 meta_back_do_single_bind(
252 struct berval mdn = { 0, NULL };
256 * Rewrite the bind dn if needed
258 switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
259 "bindDn", dn->bv_val, lc->conn, &mdn.bv_val ) ) {
260 case REWRITE_REGEXEC_OK:
261 if ( mdn.bv_val == NULL ) {
265 LDAP_LOG( BACK_META, DETAIL1,
266 "[rw] bindDn: \"%s\" -> \"%s\"\n", dn->bv_val, mdn.bv_val, 0 );
267 #else /* !NEW_LOGGING */
268 Debug( LDAP_DEBUG_ARGS,
269 "rw> bindDn: \"%s\" -> \"%s\"\n%s",
270 dn->bv_val, mdn.bv_val, "" );
271 #endif /* !NEW_LOGGING */
274 case REWRITE_REGEXEC_UNWILLING:
275 return LDAP_UNWILLING_TO_PERFORM;
277 case REWRITE_REGEXEC_ERR:
282 rc = ldap_set_option( lc->conns[ candidate ].ld,
283 LDAP_OPT_SERVER_CONTROLS, op->o_ctrls );
284 if ( rc != LDAP_SUCCESS ) {
285 rc = ldap_back_map_result( rc );
290 rc = ldap_bind_s( lc->conns[ candidate ].ld, mdn.bv_val, cred->bv_val, method );
291 if ( rc != LDAP_SUCCESS ) {
292 rc = ldap_back_map_result( rc );
294 ber_dupbv( &lc->conns[ candidate ].bound_dn, dn );
295 lc->conns[ candidate ].bound = META_BOUND;
296 lc->bound_target = candidate;
298 if ( li->savecred ) {
299 if ( lc->conns[ candidate ].cred.bv_val )
300 ch_free( lc->conns[ candidate ].cred.bv_val );
301 ber_dupbv( &lc->conns[ candidate ].cred, cred );
302 ldap_set_rebind_proc( lc->conns[ candidate ].ld,
304 &lc->conns[ candidate ] );
307 if ( li->cache.ttl != META_DNCACHE_DISABLED
308 && ndn->bv_len != 0 ) {
309 ( void )meta_dncache_update_entry( &li->cache,
316 if ( mdn.bv_val != dn->bv_val ) {
327 meta_back_dobind( struct metaconn *lc, Operation *op )
329 struct metasingleconn *lsc;
333 * all the targets are bound as pseudoroot
335 if ( lc->bound_target == META_BOUND_ALL ) {
339 for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
343 * Not a candidate or something wrong with this target ...
345 if ( lsc->ld == NULL ) {
350 * If required, set controls
353 if ( ldap_set_option( lsc->ld, LDAP_OPT_SERVER_CONTROLS,
354 op->o_ctrls ) != LDAP_SUCCESS ) {
355 ( void )meta_clear_one_candidate( lsc, 1 );
361 * If the target is already bound it is skipped
363 if ( lsc->bound == META_BOUND && lc->bound_target == i ) {
369 * Otherwise an anonymous bind is performed
370 * (note: if the target was already bound, the anonymous
371 * bind clears the previous bind).
373 if ( lsc->bound_dn.bv_val ) {
374 ch_free( lsc->bound_dn.bv_val );
375 lsc->bound_dn.bv_val = NULL;
376 lsc->bound_dn.bv_len = 0;
380 rc = ldap_bind_s( lsc->ld, 0, NULL, LDAP_AUTH_SIMPLE );
381 if ( rc != LDAP_SUCCESS ) {
384 LDAP_LOG( BACK_META, WARNING,
385 "meta_back_dobind: (anonymous)"
386 " bind as \"%s\" failed"
387 " with error \"%s\"\n",
388 lsc->bound_dn.bv_val,
389 ldap_err2string( rc ), 0 );
390 #else /* !NEW_LOGGING */
391 Debug( LDAP_DEBUG_ANY,
392 "==>meta_back_dobind: (anonymous)"
393 " bind as \"%s\" failed"
394 " with error \"%s\"\n%s",
395 lsc->bound_dn.bv_val,
396 ldap_err2string( rc ), "" );
397 #endif /* !NEW_LOGGING */
400 * null cred bind should always succeed
401 * as anonymous, so a failure means
402 * the target is no longer candidate possibly
403 * due to technical reasons (remote host down?)
404 * so better clear the handle
406 ( void )meta_clear_one_candidate( lsc, 1 );
410 lsc->bound = META_ANONYMOUS;
421 meta_back_is_valid( struct metaconn *lc, int candidate )
423 struct metasingleconn *lsc;
428 if ( candidate < 0 ) {
432 for ( i = 0, lsc = lc->conns; !META_LAST(lsc) && i < candidate;
435 if ( !META_LAST(lsc) ) {
436 return( lsc->ld != NULL );
445 * This is a callback used for chasing referrals using the same
446 * credentials as the original user on this session.
449 meta_back_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request,
450 ber_int_t msgid, void *params )
452 struct metasingleconn *lc = params;
454 return ldap_bind_s( ld, lc->bound_dn.bv_val, lc->cred.bv_val, LDAP_AUTH_SIMPLE );
458 * FIXME: error return must be handled in a cleaner way ...
461 meta_back_op_result( struct metaconn *lc, Operation *op )
463 int i, rerr = LDAP_SUCCESS;
464 struct metasingleconn *lsc;
468 for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
469 int err = LDAP_SUCCESS;
473 ldap_get_option( lsc->ld, LDAP_OPT_ERROR_NUMBER, &err );
474 if ( err != LDAP_SUCCESS ) {
476 * better check the type of error. In some cases
477 * (search ?) it might be better to return a
478 * success if at least one of the targets gave
479 * positive result ...
481 ldap_get_option( lsc->ld,
482 LDAP_OPT_ERROR_STRING, &msg );
483 ldap_get_option( lsc->ld,
484 LDAP_OPT_MATCHED_DN, &match );
485 err = ldap_back_map_result( err );
488 LDAP_LOG( BACK_META, RESULTS,
489 "meta_back_op_result: target"
490 " <%d> sending msg \"%s\""
491 " (matched \"%s\")\n",
492 i, ( msg ? msg : "" ),
493 ( match ? match : "" ) );
494 #else /* !NEW_LOGGING */
495 Debug(LDAP_DEBUG_ANY,
496 "==> meta_back_op_result: target"
497 " <%d> sending msg \"%s\""
498 " (matched \"%s\")\n",
499 i, ( msg ? msg : "" ),
500 ( match ? match : "" ) );
501 #endif /* !NEW_LOGGING */
504 * FIXME: need to rewrite "match" (need rwinfo)
516 /* better test the pointers before freeing? */
526 send_ldap_result( lc->conn, op, rerr, rmatch, rmsg, NULL, NULL );
528 return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );