2 * Copyright 1998-2002 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 struct berval *realdn = dn;
100 struct berval *realndn = ndn;
101 struct berval *realcred = cred;
102 int realmethod = method;
105 LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
106 "meta_back_bind: dn: %s.\n", dn->bv_val ));
107 #else /* !NEW_LOGGING */
108 Debug( LDAP_DEBUG_ARGS, "meta_back_bind: dn: %s.\n%s%s", dn->bv_val, "", "" );
109 #endif /* !NEW_LOGGING */
111 if ( method == LDAP_AUTH_SIMPLE
112 && be_isroot_pw( be, conn, ndn, cred ) ) {
114 ber_dupbv( edn, be_root_dn( be ) );
115 op_type = META_OP_REQUIRE_ALL;
117 lc = meta_back_getconn( li, conn, op, op_type, ndn, NULL );
120 LDAP_LOG(( "backend", LDAP_LEVEL_NOTICE,
121 "meta_back_bind: no target for dn %s.\n",
123 #else /* !NEW_LOGGING */
124 Debug( LDAP_DEBUG_ANY,
125 "meta_back_bind: no target for dn %s.\n%s%s",
127 #endif /* !NEW_LOGGING */
128 send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
129 NULL, NULL, NULL, NULL );
134 * Each target is scanned ...
136 lc->bound_target = META_BOUND_NONE;
137 ndnlen = ndn->bv_len;
138 for ( i = 0; i < li->ntargets; i++ ) {
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(( "backend", LDAP_LEVEL_WARNING,
157 "==>meta_back_bind: more than one"
158 " candidate is attempting to bind"
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 realdn = &li->targets[ i ]->pseudorootdn;
171 realndn = &li->targets[ i ]->pseudorootdn;
172 realcred = &li->targets[ i ]->pseudorootpw;
173 realmethod = LDAP_AUTH_SIMPLE;
181 lerr = meta_back_do_single_bind( li, lc,
182 realdn, realndn, realcred, realmethod, i );
183 if ( lerr != LDAP_SUCCESS ) {
185 ( void )meta_clear_one_candidate( lc->conns[ i ], 1 );
192 lc->bound_target = META_BOUND_ALL;
196 * rc is LDAP_SUCCESS if at least one bind succeeded,
197 * err is the last error that occurred during a bind;
198 * if at least (and at most?) one bind succeedes, fine.
200 if ( rc != LDAP_SUCCESS /* && err != LDAP_SUCCESS */ ) {
203 * deal with bind failure ...
207 * no target was found within the naming context,
208 * so bind must fail with invalid credentials
210 if ( err == LDAP_SUCCESS && gotit == 0 ) {
211 err = LDAP_INVALID_CREDENTIALS;
214 err = ldap_back_map_result( err );
215 send_ldap_result( conn, op, err, NULL, NULL, NULL, NULL );
223 * meta_back_do_single_bind
225 * attempts to perform a bind with creds
228 meta_back_do_single_bind(
238 struct berval mdn = { 0, NULL };
242 * Rewrite the bind dn if needed
244 switch ( rewrite_session( li->targets[ candidate ]->rwinfo,
245 "bindDn", dn->bv_val, lc->conn, &mdn.bv_val ) ) {
246 case REWRITE_REGEXEC_OK:
247 if ( mdn.bv_val == NULL ) {
251 LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
252 "[rw] bindDn: \"%s\" -> \"%s\"\n", dn->bv_val, mdn.bv_val ));
253 #else /* !NEW_LOGGING */
254 Debug( LDAP_DEBUG_ARGS,
255 "rw> bindDn: \"%s\" -> \"%s\"\n%s",
256 dn->bv_val, mdn.bv_val, "" );
257 #endif /* !NEW_LOGGING */
260 case REWRITE_REGEXEC_UNWILLING:
261 return LDAP_UNWILLING_TO_PERFORM;
263 case REWRITE_REGEXEC_ERR:
264 return LDAP_OPERATIONS_ERROR;
267 rc = ldap_bind_s( lc->conns[ candidate ]->ld, mdn.bv_val, cred->bv_val, method );
268 if ( rc != LDAP_SUCCESS ) {
269 rc = ldap_back_map_result( rc );
271 ber_dupbv( &lc->conns[ candidate ]->bound_dn, dn );
272 lc->conns[ candidate ]->bound = META_BOUND;
273 lc->bound_target = candidate;
275 if ( li->cache.ttl != META_DNCACHE_DISABLED
276 && ndn->bv_len != 0 ) {
277 ( void )meta_dncache_update_entry( &li->cache,
282 if ( mdn.bv_val != dn->bv_val ) {
293 meta_back_dobind( struct metaconn *lc, Operation *op )
295 struct metasingleconn **lsc;
299 * all the targets are bound as pseudoroot
301 if ( lc->bound_target == META_BOUND_ALL ) {
305 for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
309 * Not a candidate or something wrong with this target ...
311 if ( lsc[ 0 ]->ld == NULL ) {
316 * If the target is already bound it is skipped
318 if ( lsc[ 0 ]->bound == META_BOUND && lc->bound_target == i ) {
324 * Otherwise an anonymous bind is performed
325 * (note: if the target was already bound, the anonymous
326 * bind clears the previous bind).
328 if ( lsc[ 0 ]->bound_dn.bv_val ) {
329 ch_free( lsc[ 0 ]->bound_dn.bv_val );
330 lsc[ 0 ]->bound_dn.bv_val = NULL;
331 lsc[ 0 ]->bound_dn.bv_len = 0;
333 rc = ldap_bind_s( lsc[ 0 ]->ld, 0, NULL, LDAP_AUTH_SIMPLE );
334 if ( rc != LDAP_SUCCESS ) {
337 LDAP_LOG(( "backend", LDAP_LEVEL_WARNING,
338 "meta_back_dobind: (anonymous)"
339 " bind as \"%s\" failed"
340 " with error \"%s\"\n",
341 lsc[ 0 ]->bound_dn.bv_val,
342 ldap_err2string( rc ) ));
343 #else /* !NEW_LOGGING */
344 Debug( LDAP_DEBUG_ANY,
345 "==>meta_back_dobind: (anonymous)"
346 " bind as \"%s\" failed"
347 " with error \"%s\"\n%s",
348 lsc[ 0 ]->bound_dn.bv_val,
349 ldap_err2string( rc ), "" );
350 #endif /* !NEW_LOGGING */
353 * null cred bind should always succeed
354 * as anonymous, so a failure means
355 * the target is no longer candidate possibly
356 * due to technical reasons (remote host down?)
357 * so better clear the handle
359 ( void )meta_clear_one_candidate( lsc[ 0 ], 1 );
363 lsc[ 0 ]->bound = META_ANONYMOUS;
374 meta_back_is_valid( struct metaconn *lc, int candidate )
376 struct metasingleconn **lsc;
381 if ( candidate < 0 ) {
385 for ( i = 0, lsc = lc->conns;
386 lsc[ 0 ] != NULL && i < candidate;
390 return( lsc[ 0 ]->ld != NULL );
397 * FIXME: error return must be handled in a cleaner way ...
400 meta_back_op_result( struct metaconn *lc, Operation *op )
402 int i, rerr = LDAP_SUCCESS;
403 struct metasingleconn **lsc;
407 for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
408 int err = LDAP_SUCCESS;
412 ldap_get_option( lsc[ 0 ]->ld, LDAP_OPT_ERROR_NUMBER, &err );
413 if ( err != LDAP_SUCCESS ) {
415 * better check the type of error. In some cases
416 * (search ?) it might be better to return a
417 * success if at least one of the targets gave
418 * positive result ...
420 ldap_get_option( lsc[ 0 ]->ld,
421 LDAP_OPT_ERROR_STRING, &msg );
422 ldap_get_option( lsc[ 0 ]->ld,
423 LDAP_OPT_MATCHED_DN, &match );
424 err = ldap_back_map_result( err );
427 LDAP_LOG(( "backend", LDAP_DEBUG_NOTICE,
428 "meta_back_op_result: target"
429 " <%d> sending msg \"%s\""
430 " (matched \"%s\")\n",
431 i, ( msg ? msg : "" ),
432 ( match ? match : "" ) ));
433 #else /* !NEW_LOGGING */
434 Debug(LDAP_DEBUG_ANY,
435 "==> meta_back_op_result: target"
436 " <%d> sending msg \"%s\""
437 " (matched \"%s\")\n",
438 i, ( msg ? msg : "" ),
439 ( match ? match : "" ) );
440 #endif /* !NEW_LOGGING */
443 * FIXME: need to rewrite "match" (need rwinfo)
455 /* better test the pointers before freeing? */
465 send_ldap_result( lc->conn, op, rerr, rmatch, rmsg, NULL, NULL );
467 return ( ( rerr == LDAP_SUCCESS ) ? 0 : -1 );