2 * Copyright 1998-2001 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"
92 struct metainfo *li = ( struct metainfo * )be->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;
99 char *realdn = (char *)dn;
100 char *realndn = (char *)ndn;
101 char *realcred = cred->bv_val;
102 int realmethod = method;
105 LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
106 "meta_back_bind: dn: %s.\n", dn ));
107 #else /* !NEW_LOGGING */
108 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s", dn, "", "" );
109 #endif /* !NEW_LOGGING */
113 if ( method == LDAP_AUTH_SIMPLE
114 && be_isroot_pw( be, conn, ndn, cred ) ) {
116 *edn = ch_strdup( be_root_dn( be ) );
117 op_type = META_OP_REQUIRE_ALL;
119 lc = meta_back_getconn( li, conn, op, op_type, ndn, NULL );
122 LDAP_LOG(( "backend", LDAP_LEVEL_NOTICE,
123 "meta_back_bind: no target for dn %s.\n",
125 #else /* !NEW_LOGGING */
126 Debug( LDAP_DEBUG_ANY,
127 "meta_back_bind: no target for dn %s.\n%s%s",
129 #endif /* !NEW_LOGGING */
130 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
131 NULL, NULL, NULL, NULL );
136 * Each target is scanned ...
138 lc->bound_target = META_BOUND_NONE;
139 ndnlen = strlen( ndn );
140 for ( i = 0; i < li->ntargets; i++ ) {
144 * Skip non-candidates
146 if ( lc->conns[ i ]->candidate != META_CANDIDATE ) {
154 * A bind operation is expected to have
155 * ONE CANDIDATE ONLY!
158 LDAP_LOG(( "backend", LDAP_LEVEL_WARNING,
159 "==>meta_back_bind: more than one"
160 " candidate is attempting to bind"
162 #else /* !NEW_LOGGING */
163 Debug( LDAP_DEBUG_ANY,
164 "==>meta_back_bind: more than one"
165 " candidate is attempting to bind"
168 #endif /* !NEW_LOGGING */
171 if ( isroot && li->targets[ i ]->pseudorootdn != NULL ) {
172 realdn = li->targets[ i ]->pseudorootdn;
173 realndn = li->targets[ i ]->pseudorootdn;
174 realcred = li->targets[ i ]->pseudorootpw;
175 realmethod = LDAP_AUTH_SIMPLE;
178 lerr = meta_back_do_single_bind( li, lc,
179 realdn, realndn, realcred, realmethod, i );
180 if ( lerr != LDAP_SUCCESS ) {
182 ( void )meta_clear_one_candidate( lc->conns[ i ], 1 );
189 lc->bound_target = META_BOUND_ALL;
193 * rc is LDAP_SUCCESS if at least one bind succeeded,
194 * err is the last error that occurred during a bind;
195 * if at least (and at most?) one bind succeedes, fine.
197 if ( rc != LDAP_SUCCESS /* && err != LDAP_SUCCESS */ ) {
200 * deal with bind failure ...
202 err = ldap_back_map_result( err );
203 send_ldap_result( conn, op, err, NULL, NULL, NULL, NULL );
211 * meta_back_do_single_bind
213 * attempts to perform a bind with creds
216 meta_back_do_single_bind(
230 * Rewrite the bind dn if needed
232 switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
233 "bindDn", dn, lc->conn, &mdn ) ) {
234 case REWRITE_REGEXEC_OK:
239 LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
240 "[rw] bindDn: \"%s\" -> \"%s\"\n", dn, mdn ));
241 #else /* !NEW_LOGGING */
242 Debug( LDAP_DEBUG_ARGS,
243 "rw> bindDn: \"%s\" -> \"%s\"\n%s",
245 #endif /* !NEW_LOGGING */
248 case REWRITE_REGEXEC_UNWILLING:
249 return LDAP_UNWILLING_TO_PERFORM;
251 case REWRITE_REGEXEC_ERR:
252 return LDAP_OPERATIONS_ERROR;
255 rc = ldap_bind_s( lc->conns[ candidate ]->ld, mdn, cred, method );
256 if ( rc != LDAP_SUCCESS ) {
257 rc = ldap_back_map_result( rc );
259 lc->conns[ candidate ]->bound_dn = ch_strdup( dn );
260 lc->conns[ candidate ]->bound = META_BOUND;
261 lc->bound_target = candidate;
263 if ( li->cache.ttl != META_DNCACHE_DISABLED
264 && ndn[ 0 ] != '\0' ) {
265 ( void )meta_dncache_update_entry( &li->cache,
266 ch_strdup( ndn ), candidate );
281 meta_back_dobind( struct metaconn *lc, Operation *op )
283 struct metasingleconn **lsc;
287 * all the targets are bound as pseudoroot
289 if ( lc->bound_target == META_BOUND_ALL ) {
293 for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
297 * Not a candidate or something wrong with this target ...
299 if ( lsc[ 0 ]->ld == NULL ) {
304 * If the target is already bound it is skipped
306 if ( lsc[ 0 ]->bound == META_BOUND && lc->bound_target == i ) {
312 * Otherwise an anonymous bind is performed
313 * (note: if the target was already bound, the anonymous
314 * bind clears the previous bind).
316 rc = ldap_bind_s( lsc[ 0 ]->ld, lsc[ 0 ]->bound_dn,
317 NULL, LDAP_AUTH_SIMPLE );
318 if ( rc != LDAP_SUCCESS ) {
321 LDAP_LOG(( "backend", LDAP_LEVEL_WARNING,
322 "meta_back_dobind: (anonymous)"
323 " bind as \"%s\" failed"
324 " with error \"%s\"\n",
326 ldap_err2string( rc ) ));
327 #else /* !NEW_LOGGING */
328 Debug( LDAP_DEBUG_ANY,
329 "==>meta_back_dobind: (anonymous)"
330 " bind as \"%s\" failed"
331 " with error \"%s\"\n%s",
333 ldap_err2string( rc ), "" );
334 #endif /* !NEW_LOGGING */
337 * null cred bind should always succeed
338 * as anonymous, so a failure means
339 * the target is no longer candidate possibly
340 * due to technical reasons (remote host down?)
341 * so better clear the handle
343 ( void )meta_clear_one_candidate( lsc[ 0 ], 1 );
347 lsc[ 0 ]->bound = META_ANONYMOUS;
355 * FIXME: error return must be handled in a cleaner way ...
358 meta_back_op_result( struct metaconn *lc, Operation *op )
360 int i, rerr = LDAP_SUCCESS;
361 struct metasingleconn **lsc;
365 for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
366 int err = LDAP_SUCCESS;
370 ldap_get_option( lsc[ 0 ]->ld, LDAP_OPT_ERROR_NUMBER, &err );
371 if ( err != LDAP_SUCCESS ) {
373 * better check the type of error. In some cases
374 * (search ?) it might be better to return a
375 * success if at least one of the targets gave
376 * positive result ...
378 ldap_get_option( lsc[ 0 ]->ld,
379 LDAP_OPT_ERROR_STRING, &msg );
380 ldap_get_option( lsc[ 0 ]->ld,
381 LDAP_OPT_MATCHED_DN, &match );
382 err = ldap_back_map_result( err );
385 LDAP_LOG(( "backend", LDAP_DEBUG_NOTICE,
386 "meta_back_op_result: target"
387 " <%d> sending msg \"%s\""
388 " (matched \"%s\")\n",
389 i, ( msg ? msg : "" ),
390 ( match ? match : "" ) ));
391 #else /* !NEW_LOGGING */
392 Debug(LDAP_DEBUG_ANY,
393 "==> meta_back_op_result: target"
394 " <%d> sending msg \"%s\""
395 " (matched \"%s\")\n",
396 i, ( msg ? msg : "" ),
397 ( match ? match : "" ) );
398 #endif /* !NEW_LOGGING */
401 * FIXME: need to rewrite "match" (need rwinfo)
413 /* better test the pointers before freeing? */
423 send_ldap_result( lc->conn, op, rerr, rmatch, rmsg, NULL, NULL );
425 return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );