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, err = LDAP_SUCCESS;
98 LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
99 "meta_back_bind: dn: %s.\n", dn ));
100 #else /* !NEW_LOGGING */
101 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s", dn, "", "" );
102 #endif /* !NEW_LOGGING */
106 lc = meta_back_getconn( li, conn, op, META_OP_ALLOW_MULTIPLE,
110 LDAP_LOG(( "backend", LDAP_LEVEL_NOTICE,
111 "meta_back_bind: no target for dn %s.\n",
113 #else /* !NEW_LOGGING */
114 Debug( LDAP_DEBUG_ANY,
115 "meta_back_bind: no target for dn %s.\n%s%s",
117 #endif /* !NEW_LOGGING */
122 * Each target is scanned ...
124 lc->bound_target = -1;
125 ndnlen = strlen( ndn );
126 for ( i = 0; i < li->ntargets; i++ ) {
130 * Skip non-candidates
132 if ( lc->conns[ i ]->candidate != META_CANDIDATE ) {
140 * A bind operation is expected to have
141 * ONE CANDIDATE ONLY!
144 LDAP_LOG(( "backend", LDAP_LEVEL_WARNING,
145 "==>meta_back_bind: more than one"
146 " candidate is attempting to bind"
148 #else /* !NEW_LOGGING */
149 Debug( LDAP_DEBUG_ANY,
150 "==>meta_back_bind: more than one"
151 " candidate is attempting to bind"
154 #endif /* !NEW_LOGGING */
158 lerr = meta_back_do_single_bind( li, lc, dn, ndn, cred,
160 if ( lerr != LDAP_SUCCESS ) {
162 ( void )meta_clear_one_candidate( lc->conns[ i ], 1 );
169 * rc is LDAP_SUCCESS if at least one bind succeeded,
170 * err is the last error that occurred during a bind;
171 * if at least (and at most?) one bind succeedes, fine.
173 if ( rc != LDAP_SUCCESS /* && err != LDAP_SUCCESS */ ) {
176 * deal with bind failure ...
178 err = ldap_back_map_result( err );
179 send_ldap_result( conn, op, err, NULL, "", NULL, NULL );
186 * meta_back_do_single_bind
188 * attempts to perform a bind with creds
191 meta_back_do_single_bind(
205 * Rewrite the bind dn if needed
207 switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
208 "bindDn", dn, lc->conn, &mdn ) ) {
209 case REWRITE_REGEXEC_OK:
214 LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
215 "[rw] bindDn: \"%s\" -> \"%s\"\n", dn, mdn ));
216 #else /* !NEW_LOGGING */
217 Debug( LDAP_DEBUG_ARGS,
218 "rw> bindDn: \"%s\" -> \"%s\"\n%s",
220 #endif /* !NEW_LOGGING */
223 case REWRITE_REGEXEC_UNWILLING:
224 return LDAP_UNWILLING_TO_PERFORM;
226 case REWRITE_REGEXEC_ERR:
227 return LDAP_OPERATIONS_ERROR;
230 rc = ldap_bind_s( lc->conns[ candidate ]->ld, mdn,
231 cred->bv_val, method );
232 if ( rc != LDAP_SUCCESS ) {
233 rc = ldap_back_map_result( rc );
235 lc->conns[ candidate ]->bound_dn = ch_strdup( dn );
236 lc->conns[ candidate ]->bound = META_BOUND;
237 lc->bound_target = candidate;
239 if ( li->cache.ttl != META_DNCACHE_DISABLED
240 && ndn[ 0 ] != '\0' ) {
241 ( void )meta_dncache_update_entry( &li->cache,
242 ch_strdup( ndn ), candidate );
257 meta_back_dobind( struct metaconn *lc, Operation *op )
259 struct metasingleconn **lsc;
262 for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
266 * Not a candidate or something wrong with this target ...
268 if ( lsc[ 0 ]->ld == NULL ) {
273 * If the target is already bound it is skipped
275 if ( lsc[ 0 ]->bound == META_BOUND && lc->bound_target == i ) {
281 * Otherwise an anonymous bind is performed
282 * (note: if the target was already bound, the anonymous
283 * bind clears the previous bind).
285 rc = ldap_bind_s( lsc[ 0 ]->ld, lsc[ 0 ]->bound_dn,
286 NULL, LDAP_AUTH_SIMPLE );
287 if ( rc != LDAP_SUCCESS ) {
290 LDAP_LOG(( "backend", LDAP_LEVEL_WARNING,
291 "meta_back_dobind: (anonymous)"
292 " bind as \"%s\" failed"
293 " with error \"%s\"\n",
295 ldap_err2string( rc ) ));
296 #else /* !NEW_LOGGING */
297 Debug( LDAP_DEBUG_ANY,
298 "==>meta_back_dobind: (anonymous)"
299 " bind as \"%s\" failed"
300 " with error \"%s\"\n%s",
302 ldap_err2string( rc ), "" );
303 #endif /* !NEW_LOGGING */
306 * null cred bind should always succeed
307 * as anonymous, so a failure means
308 * the target is no longer candidate possibly
309 * due to technical reasons (remote host down?)
310 * so better clear the handle
312 ( void )meta_clear_one_candidate( lsc[ 0 ], 1 );
316 lsc[ 0 ]->bound = META_ANONYMOUS;
324 * FIXME: error return must be handled in a cleaner way ...
327 meta_back_op_result( struct metaconn *lc, Operation *op )
329 int i, err = LDAP_SUCCESS;
332 struct metasingleconn **lsc;
334 for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
335 ldap_get_option( lsc[ 0 ]->ld, LDAP_OPT_ERROR_NUMBER, &err );
336 if ( err != LDAP_SUCCESS ) {
338 * better check the type of error. In some cases
339 * (search ?) it might be better to return a
340 * success if at least one of the targets gave
341 * positive result ...
343 ldap_get_option( lsc[ 0 ]->ld,
344 LDAP_OPT_ERROR_STRING, &msg );
345 ldap_get_option( lsc[ 0 ]->ld,
346 LDAP_OPT_MATCHED_DN, &match );
347 err = ldap_back_map_result( err );
350 * FIXME: need to rewrite "match" (need rwinfo)
352 send_ldap_result( lc->conn, op, err, match, msg,
356 LDAP_LOG(( "backend", LDAP_DEBUG_NOTICE,
357 "meta_back_op_result: target"
358 " <%d> sending msg \"%s\""
359 " (matched \"%s\")\n",
360 i, ( msg ? msg : "" ),
361 ( match ? match : "" ) ));
362 #else /* !NEW_LOGGING */
363 Debug(LDAP_DEBUG_ANY,
364 "==> meta_back_op_result: target"
365 " <%d> sending msg \"%s\""
366 " (matched \"%s\")\n",
367 i, ( msg ? msg : "" ),
368 ( match ? match : "" ) );
369 #endif /* !NEW_LOGGING */
371 /* better test the pointers before freeing? */
382 return ( err == LDAP_SUCCESS ) ? 0 : -1;