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[netbsd-mini2440.git] / external / bsd / openldap / dist / servers / slapd / modrdn.c
blob3c60740e6be5ae8cd83904d3bd4fdd6faebc1937
1 /* $OpenLDAP: pkg/ldap/servers/slapd/modrdn.c,v 1.170.2.5 2008/02/11 23:26:44 kurt Exp $ */
2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
3 *
4 * Copyright 1998-2008 The OpenLDAP Foundation.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
9 * Public License.
10 *
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
14 */
15 /* Portions Copyright 1999, Juan C. Gomez, All rights reserved.
16 * This software is not subject to any license of Silicon Graphics
17 * Inc. or Purdue University.
18 *
19 * Redistribution and use in source and binary forms are permitted
20 * without restriction or fee of any kind as long as this notice
21 * is preserved.
22 */
23 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
24 * All rights reserved.
25 *
26 * Redistribution and use in source and binary forms are permitted
27 * provided that this notice is preserved and that due credit is given
28 * to the University of Michigan at Ann Arbor. The name of the University
29 * may not be used to endorse or promote products derived from this
30 * software without specific prior written permission. This software
31 * is provided ``as is'' without express or implied warranty.
32 */
33
34 #include "portable.h"
35
36 #include <stdio.h>
37
38 #include <ac/socket.h>
39 #include <ac/string.h>
40
41 #include "slap.h"
42
43 int
44 do_modrdn(
45 Operation *op,
46 SlapReply *rs
47 )
48 {
49 struct berval dn = BER_BVNULL;
50 struct berval newrdn = BER_BVNULL;
51 struct berval newSuperior = BER_BVNULL;
52 ber_int_t deloldrdn;
53
54 struct berval pnewSuperior = BER_BVNULL;
55
56 struct berval nnewSuperior = BER_BVNULL;
57
58 ber_len_t length;
59
60 Debug( LDAP_DEBUG_TRACE, "%s do_modrdn\n",
61 op->o_log_prefix, 0, 0 );
62 /*
63 * Parse the modrdn request. It looks like this:
64 *
65 * ModifyRDNRequest := SEQUENCE {
66 * entry DistinguishedName,
67 * newrdn RelativeDistinguishedName
68 * deleteoldrdn BOOLEAN,
69 * newSuperior [0] LDAPDN OPTIONAL (v3 Only!)
70 * }
71 */
72
73 if ( ber_scanf( op->o_ber, "{mmb", &dn, &newrdn, &deloldrdn )
74 == LBER_ERROR )
75 {
76 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: ber_scanf failed\n",
77 op->o_log_prefix, 0, 0 );
78 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
79 return SLAPD_DISCONNECT;
80 }
81
82 /* Check for newSuperior parameter, if present scan it */
83
84 if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
85 if ( op->o_protocol < LDAP_VERSION3 ) {
86 /* Connection record indicates v2 but field
87 * newSuperior is present: report error.
88 */
89 Debug( LDAP_DEBUG_ANY,
90 "%s do_modrdn: newSuperior requires LDAPv3\n",
91 op->o_log_prefix, 0, 0 );
92
93 send_ldap_discon( op, rs,
94 LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
95 rs->sr_err = SLAPD_DISCONNECT;
96 goto cleanup;
97 }
98
99 if ( ber_scanf( op->o_ber, "m", &newSuperior )
100 == LBER_ERROR ) {
101
102 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: ber_scanf(\"m\") failed\n",
103 op->o_log_prefix, 0, 0 );
104
105 send_ldap_discon( op, rs,
106 LDAP_PROTOCOL_ERROR, "decoding error" );
107 rs->sr_err = SLAPD_DISCONNECT;
108 goto cleanup;
109 }
110 op->orr_newSup = &pnewSuperior;
111 op->orr_nnewSup = &nnewSuperior;
112 }
113
114 Debug( LDAP_DEBUG_ARGS,
115 "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
116 dn.bv_val, newrdn.bv_val,
117 newSuperior.bv_len ? newSuperior.bv_val : "" );
118
119 if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
120 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: ber_scanf failed\n",
121 op->o_log_prefix, 0, 0 );
122 send_ldap_discon( op, rs,
123 LDAP_PROTOCOL_ERROR, "decoding error" );
124 rs->sr_err = SLAPD_DISCONNECT;
125 goto cleanup;
126 }
127
128 if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
129 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: get_ctrls failed\n",
130 op->o_log_prefix, 0, 0 );
131 /* get_ctrls has sent results. Now clean up. */
132 goto cleanup;
133 }
134
135 rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
136 if( rs->sr_err != LDAP_SUCCESS ) {
137 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: invalid dn (%s)\n",
138 op->o_log_prefix, dn.bv_val, 0 );
139 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
140 goto cleanup;
141 }
142
143 /* FIXME: should have/use rdnPretty / rdnNormalize routines */
144
145 rs->sr_err = dnPrettyNormal( NULL, &newrdn, &op->orr_newrdn, &op->orr_nnewrdn, op->o_tmpmemctx );
146 if( rs->sr_err != LDAP_SUCCESS ) {
147 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: invalid newrdn (%s)\n",
148 op->o_log_prefix, newrdn.bv_val, 0 );
149 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
150 goto cleanup;
151 }
152
153 if( rdn_validate( &op->orr_newrdn ) != LDAP_SUCCESS ) {
154 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: invalid rdn (%s)\n",
155 op->o_log_prefix, op->orr_newrdn.bv_val, 0 );
156 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid new RDN" );
157 goto cleanup;
158 }
159
160 if( op->orr_newSup ) {
161 rs->sr_err = dnPrettyNormal( NULL, &newSuperior, &pnewSuperior,
162 &nnewSuperior, op->o_tmpmemctx );
163 if( rs->sr_err != LDAP_SUCCESS ) {
164 Debug( LDAP_DEBUG_ANY,
165 "%s do_modrdn: invalid newSuperior (%s)\n",
166 op->o_log_prefix, newSuperior.bv_val, 0 );
167 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid newSuperior" );
168 goto cleanup;
169 }
170 }
171
172 Statslog( LDAP_DEBUG_STATS, "%s MODRDN dn=\"%s\"\n",
173 op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
174
175 op->orr_deleteoldrdn = deloldrdn;
176 op->orr_modlist = NULL;
177
178 /* prepare modlist of modifications from old/new RDN */
179 rs->sr_err = slap_modrdn2mods( op, rs );
180 if ( rs->sr_err != LDAP_SUCCESS ) {
181 send_ldap_result( op, rs );
182 goto cleanup;
183 }
184
185 op->o_bd = frontendDB;
186 rs->sr_err = frontendDB->be_modrdn( op, rs );
187
188 #ifdef LDAP_X_TXN
189 if( rs->sr_err == LDAP_X_TXN_SPECIFY_OKAY ) {
190 /* skip cleanup */
191 }
192 #endif
193
194 cleanup:
195 op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
196 op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
197
198 op->o_tmpfree( op->orr_newrdn.bv_val, op->o_tmpmemctx );
199 op->o_tmpfree( op->orr_nnewrdn.bv_val, op->o_tmpmemctx );
200
201 if ( op->orr_modlist != NULL )
202 slap_mods_free( op->orr_modlist, 1 );
203
204 if ( !BER_BVISNULL( &pnewSuperior ) ) {
205 op->o_tmpfree( pnewSuperior.bv_val, op->o_tmpmemctx );
206 }
207 if ( !BER_BVISNULL( &nnewSuperior ) ) {
208 op->o_tmpfree( nnewSuperior.bv_val, op->o_tmpmemctx );
209 }
210
211 return rs->sr_err;
212 }
213
214 int
215 fe_op_modrdn( Operation *op, SlapReply *rs )
216 {
217 struct berval dest_ndn = BER_BVNULL, dest_pndn, pdn = BER_BVNULL;
218 BackendDB *op_be, *bd = op->o_bd;
219 ber_slen_t diff;
220
221 if( op->o_req_ndn.bv_len == 0 ) {
222 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: root dse!\n",
223 op->o_log_prefix, 0, 0 );
224 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
225 "cannot rename the root DSE" );
226 goto cleanup;
227
228 } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
229 Debug( LDAP_DEBUG_ANY, "%s do_modrdn: subschema subentry: %s (%ld)\n",
230 op->o_log_prefix, frontendDB->be_schemandn.bv_val, (long)frontendDB->be_schemandn.bv_len );
231
232 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
233 "cannot rename subschema subentry" );
234 goto cleanup;
235 }
236
237 if( op->orr_nnewSup ) {
238 dest_pndn = *op->orr_nnewSup;
239 } else {
240 dnParent( &op->o_req_ndn, &dest_pndn );
241 }
242 build_new_dn( &dest_ndn, &dest_pndn, &op->orr_nnewrdn, op->o_tmpmemctx );
243
244 diff = (ber_slen_t) dest_ndn.bv_len - (ber_slen_t) op->o_req_ndn.bv_len;
245 if ( diff > 0 ? dnIsSuffix( &dest_ndn, &op->o_req_ndn )
246 : diff < 0 && dnIsSuffix( &op->o_req_ndn, &dest_ndn ) )
247 {
248 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
249 diff > 0 ? "cannot place an entry below itself"
250 : "cannot place an entry above itself" );
251 goto cleanup;
252 }
253
254 /*
255 * We could be serving multiple database backends. Select the
256 * appropriate one, or send a referral to our "referral server"
257 * if we don't hold it.
258 */
259 op->o_bd = select_backend( &op->o_req_ndn, 1 );
260 if ( op->o_bd == NULL ) {
261 op->o_bd = bd;
262 rs->sr_ref = referral_rewrite( default_referral,
263 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
264 if (!rs->sr_ref) rs->sr_ref = default_referral;
265
266 if ( rs->sr_ref != NULL ) {
267 rs->sr_err = LDAP_REFERRAL;
268 send_ldap_result( op, rs );
269
270 if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
271 } else {
272 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
273 "no global superior knowledge" );
274 }
275 goto cleanup;
276 }
277
278 /* If we've got a glued backend, check the real backend */
279 op_be = op->o_bd;
280 if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
281 op->o_bd = select_backend( &op->o_req_ndn, 0 );
282 }
283
284 /* check restrictions */
285 if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
286 send_ldap_result( op, rs );
287 goto cleanup;
288 }
289
290 /* check for referrals */
291 if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
292 goto cleanup;
293 }
294
295 /* check that destination DN is in the same backend as source DN */
296 if ( select_backend( &dest_ndn, 0 ) != op->o_bd ) {
297 send_ldap_error( op, rs, LDAP_AFFECTS_MULTIPLE_DSAS,
298 "cannot rename between DSAs" );
299 goto cleanup;
300 }
301
302 /*
303 * do the modrdn if 1 && (2 || 3)
304 * 1) there is a modrdn function implemented in this backend;
305 * 2) this backend is master for what it holds;
306 * 3) it's a replica and the dn supplied is the update_ndn.
307 */
308 if ( op->o_bd->be_modrdn ) {
309 /* do the update here */
310 int repl_user = be_isupdate( op );
311 if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user )
312 {
313 op->o_bd = op_be;
314 op->o_bd->be_modrdn( op, rs );
315
316 if ( op->o_bd->be_delete ) {
317 struct berval org_req_dn = BER_BVNULL;
318 struct berval org_req_ndn = BER_BVNULL;
319 struct berval org_dn = BER_BVNULL;
320 struct berval org_ndn = BER_BVNULL;
321 int org_managedsait;
322
323 org_req_dn = op->o_req_dn;
324 org_req_ndn = op->o_req_ndn;
325 org_dn = op->o_dn;
326 org_ndn = op->o_ndn;
327 org_managedsait = get_manageDSAit( op );
328 op->o_dn = op->o_bd->be_rootdn;
329 op->o_ndn = op->o_bd->be_rootndn;
330 op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
331
332 while ( rs->sr_err == LDAP_SUCCESS &&
333 op->o_delete_glue_parent ) {
334 op->o_delete_glue_parent = 0;
335 if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
336 slap_callback cb = { NULL };
337 cb.sc_response = slap_null_cb;
338 dnParent( &op->o_req_ndn, &pdn );
339 op->o_req_dn = pdn;
340 op->o_req_ndn = pdn;
341 op->o_callback = &cb;
342 op->o_bd->be_delete( op, rs );
343 } else {
344 break;
345 }
346 }
347 op->o_managedsait = org_managedsait;
348 op->o_dn = org_dn;
349 op->o_ndn = org_ndn;
350 op->o_req_dn = org_req_dn;
351 op->o_req_ndn = org_req_ndn;
352 op->o_delete_glue_parent = 0;
353 }
354
355 } else {
356 BerVarray defref = op->o_bd->be_update_refs
357 ? op->o_bd->be_update_refs : default_referral;
358
359 if ( defref != NULL ) {
360 rs->sr_ref = referral_rewrite( defref,
361 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
362 if (!rs->sr_ref) rs->sr_ref = defref;
363
364 rs->sr_err = LDAP_REFERRAL;
365 send_ldap_result( op, rs );
366
367 if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
368 } else {
369 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
370 "shadow context; no update referral" );
371 }
372 }
373 } else {
374 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
375 "operation not supported within namingContext" );
376 }
377
378 cleanup:;
379 if ( dest_ndn.bv_val != NULL )
380 ber_memfree_x( dest_ndn.bv_val, op->o_tmpmemctx );
381 op->o_bd = bd;
382 return rs->sr_err;
383 }
384
385 int
386 slap_modrdn2mods(
387 Operation *op,
388 SlapReply *rs )
389 {
390 int a_cnt, d_cnt;
391 LDAPRDN old_rdn = NULL;
392 LDAPRDN new_rdn = NULL;
393
394 assert( !BER_BVISEMPTY( &op->oq_modrdn.rs_newrdn ) );
395 assert( !op->orr_deleteoldrdn || !BER_BVISEMPTY( &op->o_req_dn ) );
396
397 if ( ldap_bv2rdn_x( &op->oq_modrdn.rs_newrdn, &new_rdn,
398 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) ) {
399 Debug( LDAP_DEBUG_TRACE,
400 "%s slap_modrdn2mods: can't figure out "
401 "type(s)/value(s) of newrdn\n",
402 op->o_log_prefix, 0, 0 );
403 rs->sr_err = LDAP_INVALID_DN_SYNTAX;
404 rs->sr_text = "unknown type(s) used in RDN";
405 goto done;
406 }
407
408 if ( op->oq_modrdn.rs_deleteoldrdn ) {
409 if ( ldap_bv2rdn_x( &op->o_req_dn, &old_rdn,
410 (char **)&rs->sr_text, LDAP_DN_FORMAT_LDAP, op->o_tmpmemctx ) ) {
411 Debug( LDAP_DEBUG_TRACE,
412 "%s slap_modrdn2mods: can't figure out "
413 "type(s)/value(s) of oldrdn\n",
414 op->o_log_prefix, 0, 0 );
415 rs->sr_err = LDAP_OTHER;
416 rs->sr_text = "cannot parse RDN from old DN";
417 goto done;
418 }
419 }
420 rs->sr_text = NULL;
421
422 /* Add new attribute values to the entry */
423 for ( a_cnt = 0; new_rdn[a_cnt]; a_cnt++ ) {
424 AttributeDescription *desc = NULL;
425 Modifications *mod_tmp;
426
427 rs->sr_err = slap_bv2ad( &new_rdn[a_cnt]->la_attr, &desc, &rs->sr_text );
428
429 if ( rs->sr_err != LDAP_SUCCESS ) {
430 Debug( LDAP_DEBUG_TRACE,
431 "%s slap_modrdn2mods: %s: %s (new)\n",
432 op->o_log_prefix,
433 rs->sr_text,
434 new_rdn[ a_cnt ]->la_attr.bv_val );
435 goto done;
436 }
437
438 /* Apply modification */
439 mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications ) );
440 mod_tmp->sml_desc = desc;
441 BER_BVZERO( &mod_tmp->sml_type );
442 mod_tmp->sml_numvals = 1;
443 mod_tmp->sml_values = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
444 ber_dupbv( &mod_tmp->sml_values[0], &new_rdn[a_cnt]->la_value );
445 mod_tmp->sml_values[1].bv_val = NULL;
446 if( desc->ad_type->sat_equality->smr_normalize) {
447 mod_tmp->sml_nvalues = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
448 (void) (*desc->ad_type->sat_equality->smr_normalize)(
449 SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
450 desc->ad_type->sat_syntax,
451 desc->ad_type->sat_equality,
452 &mod_tmp->sml_values[0],
453 &mod_tmp->sml_nvalues[0], NULL );
454 mod_tmp->sml_nvalues[1].bv_val = NULL;
455 } else {
456 mod_tmp->sml_nvalues = NULL;
457 }
458 mod_tmp->sml_op = SLAP_MOD_SOFTADD;
459 mod_tmp->sml_flags = 0;
460 mod_tmp->sml_next = op->orr_modlist;
461 op->orr_modlist = mod_tmp;
462 }
463
464 /* Remove old rdn value if required */
465 if ( op->orr_deleteoldrdn ) {
466 for ( d_cnt = 0; old_rdn[d_cnt]; d_cnt++ ) {
467 AttributeDescription *desc = NULL;
468 Modifications *mod_tmp;
469
470 rs->sr_err = slap_bv2ad( &old_rdn[d_cnt]->la_attr, &desc, &rs->sr_text );
471 if ( rs->sr_err != LDAP_SUCCESS ) {
472 Debug( LDAP_DEBUG_TRACE,
473 "%s slap_modrdn2mods: %s: %s (old)\n",
474 op->o_log_prefix,
475 rs->sr_text,
476 old_rdn[d_cnt]->la_attr.bv_val );
477 goto done;
478 }
479
480 /* Apply modification */
481 mod_tmp = ( Modifications * )ch_malloc( sizeof( Modifications ) );
482 mod_tmp->sml_desc = desc;
483 BER_BVZERO( &mod_tmp->sml_type );
484 mod_tmp->sml_numvals = 1;
485 mod_tmp->sml_values = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
486 ber_dupbv( &mod_tmp->sml_values[0], &old_rdn[d_cnt]->la_value );
487 mod_tmp->sml_values[1].bv_val = NULL;
488 if( desc->ad_type->sat_equality->smr_normalize) {
489 mod_tmp->sml_nvalues = ( BerVarray )ch_malloc( 2 * sizeof( struct berval ) );
490 (void) (*desc->ad_type->sat_equality->smr_normalize)(
491 SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
492 desc->ad_type->sat_syntax,
493 desc->ad_type->sat_equality,
494 &mod_tmp->sml_values[0],
495 &mod_tmp->sml_nvalues[0], NULL );
496 mod_tmp->sml_nvalues[1].bv_val = NULL;
497 } else {
498 mod_tmp->sml_nvalues = NULL;
499 }
500 mod_tmp->sml_op = LDAP_MOD_DELETE;
501 mod_tmp->sml_flags = 0;
502 mod_tmp->sml_next = op->orr_modlist;
503 op->orr_modlist = mod_tmp;
504 }
505 }
506
507 done:
508
509 /* LDAP v2 supporting correct attribute handling. */
510 if ( rs->sr_err != LDAP_SUCCESS && op->orr_modlist != NULL ) {
511 Modifications *tmp;
512
513 for ( ; op->orr_modlist != NULL; op->orr_modlist = tmp ) {
514 tmp = op->orr_modlist->sml_next;
515 ch_free( op->orr_modlist );
516 }
517 }
518
519 if ( new_rdn != NULL ) {
520 ldap_rdnfree_x( new_rdn, op->o_tmpmemctx );
521 }
522 if ( old_rdn != NULL ) {
523 ldap_rdnfree_x( old_rdn, op->o_tmpmemctx );
524 }
525
526 return rs->sr_err;
527 }
528
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