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Fix parent check
[openldap] / servers / slapd / back-mdb / add.c
1 /* add.c - ldap mdb back-end add routine */
2 /* $OpenLDAP$ */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4  *
5  * Copyright 2000-2011 The OpenLDAP Foundation.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted only as authorized by the OpenLDAP
10  * Public License.
11  *
12  * A copy of this license is available in the file LICENSE in the
13  * top-level directory of the distribution or, alternatively, at
14  * <http://www.OpenLDAP.org/license.html>.
15  */
16
17 #include "portable.h"
18
19 #include <stdio.h>
20 #include <ac/string.h>
21
22 #include "back-mdb.h"
23
24 int
25 mdb_add(Operation *op, SlapReply *rs )
26 {
27         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
28         struct berval   pdn;
29         Entry           *p = NULL, *oe = op->ora_e;
30         char textbuf[SLAP_TEXT_BUFLEN];
31         size_t textlen = sizeof textbuf;
32         AttributeDescription *children = slap_schema.si_ad_children;
33         AttributeDescription *entry = slap_schema.si_ad_entry;
34         MDB_txn         *txn = NULL;
35         ID eid = NOID, pid = 0;
36         mdb_op_info opinfo = {{{ 0 }}}, *moi = &opinfo;
37         int subentry;
38
39         int             success;
40
41         LDAPControl **postread_ctrl = NULL;
42         LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
43         int num_ctrls = 0;
44
45 #ifdef LDAP_X_TXN
46         int settle = 0;
47 #endif
48
49         Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(mdb_add) ": %s\n",
50                 op->ora_e->e_name.bv_val, 0, 0);
51
52 #ifdef LDAP_X_TXN
53         if( op->o_txnSpec ) {
54                 /* acquire connection lock */
55                 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
56                 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
57                         rs->sr_text = "invalid transaction identifier";
58                         rs->sr_err = LDAP_X_TXN_ID_INVALID;
59                         goto txnReturn;
60                 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
61                         settle=1;
62                         goto txnReturn;
63                 }
64
65                 if( op->o_conn->c_txn_backend == NULL ) {
66                         op->o_conn->c_txn_backend = op->o_bd;
67
68                 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
69                         rs->sr_text = "transaction cannot span multiple database contexts";
70                         rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
71                         goto txnReturn;
72                 }
73
74                 /* insert operation into transaction */
75
76                 rs->sr_text = "transaction specified";
77                 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
78
79 txnReturn:
80                 /* release connection lock */
81                 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
82
83                 if( !settle ) {
84                         send_ldap_result( op, rs );
85                         return rs->sr_err;
86                 }
87         }
88 #endif
89
90         ctrls[num_ctrls] = 0;
91
92         /* check entry's schema */
93         rs->sr_err = entry_schema_check( op, op->ora_e, NULL,
94                 get_relax(op), 1, NULL, &rs->sr_text, textbuf, textlen );
95         if ( rs->sr_err != LDAP_SUCCESS ) {
96                 Debug( LDAP_DEBUG_TRACE,
97                         LDAP_XSTRING(mdb_add) ": entry failed schema check: "
98                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
99                 goto return_results;
100         }
101
102         /* add opattrs to shadow as well, only missing attrs will actually
103          * be added; helps compatibility with older OL versions */
104         rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
105         if ( rs->sr_err != LDAP_SUCCESS ) {
106                 Debug( LDAP_DEBUG_TRACE,
107                         LDAP_XSTRING(mdb_add) ": entry failed op attrs add: "
108                         "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
109                 goto return_results;
110         }
111
112         if ( get_assert( op ) &&
113                 ( test_filter( op, op->ora_e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
114         {
115                 rs->sr_err = LDAP_ASSERTION_FAILED;
116                 goto return_results;
117         }
118
119         subentry = is_entry_subentry( op->ora_e );
120
121         /* begin transaction */
122         rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
123         rs->sr_text = NULL;
124         if( rs->sr_err != 0 ) {
125                 Debug( LDAP_DEBUG_TRACE,
126                         LDAP_XSTRING(mdb_add) ": txn_begin failed: %s (%d)\n",
127                         mdb_strerror(rs->sr_err), rs->sr_err, 0 );
128                 rs->sr_err = LDAP_OTHER;
129                 rs->sr_text = "internal error";
130                 goto return_results;
131         }
132
133         txn = moi->moi_txn;
134
135         /*
136          * Get the parent dn and see if the corresponding entry exists.
137          */
138         if ( be_issuffix( op->o_bd, &op->ora_e->e_nname ) ) {
139                 pdn = slap_empty_bv;
140         } else {
141                 dnParent( &op->ora_e->e_nname, &pdn );
142         }
143
144         /* get entry or parent */
145         rs->sr_err = mdb_dn2entry( op, txn, &op->ora_e->e_nname, &p, 1 );
146         switch( rs->sr_err ) {
147         case 0:
148                 rs->sr_err = LDAP_ALREADY_EXISTS;
149                 mdb_entry_return( p );
150                 p = NULL;
151                 goto return_results;
152         case MDB_NOTFOUND:
153                 break;
154         case LDAP_BUSY:
155                 rs->sr_text = "ldap server busy";
156                 goto return_results;
157         default:
158                 rs->sr_err = LDAP_OTHER;
159                 rs->sr_text = "internal error";
160                 goto return_results;
161         }
162
163         if ( !p )
164                 p = (Entry *)&slap_entry_root;
165
166         if ( !bvmatch( &pdn, &p->e_nname ) ) {
167                 rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
168                         op->o_tmpmemctx );
169                 rs->sr_ref = p != (Entry *)&slap_entry_root &&
170                         is_entry_referral( p ) ? get_entry_referrals( op, p )
171                         : NULL;
172                 if ( p != (Entry *)&slap_entry_root )
173                         mdb_entry_return( p );
174                 p = NULL;
175                 Debug( LDAP_DEBUG_TRACE,
176                         LDAP_XSTRING(mdb_add) ": parent "
177                         "does not exist\n", 0, 0, 0 );
178
179                 rs->sr_err = LDAP_REFERRAL;
180                 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
181                 goto return_results;
182         }
183
184         rs->sr_err = access_allowed( op, p,
185                 children, NULL, ACL_WADD, NULL );
186
187         if ( ! rs->sr_err ) {
188                 if ( p != (Entry *)&slap_entry_root )
189                         mdb_entry_return( p );
190                 p = NULL;
191
192                 Debug( LDAP_DEBUG_TRACE,
193                         LDAP_XSTRING(mdb_add) ": no write access to parent\n",
194                         0, 0, 0 );
195                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
196                 rs->sr_text = "no write access to parent";
197                 goto return_results;;
198         }
199
200         if ( p != (Entry *)&slap_entry_root ) {
201                 if ( is_entry_subentry( p ) ) {
202                         mdb_entry_return( p );
203                         p = NULL;
204                         /* parent is a subentry, don't allow add */
205                         Debug( LDAP_DEBUG_TRACE,
206                                 LDAP_XSTRING(mdb_add) ": parent is subentry\n",
207                                 0, 0, 0 );
208                         rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
209                         rs->sr_text = "parent is a subentry";
210                         goto return_results;;
211                 }
212
213                 if ( is_entry_alias( p ) ) {
214                         mdb_entry_return( p );
215                         p = NULL;
216                         /* parent is an alias, don't allow add */
217                         Debug( LDAP_DEBUG_TRACE,
218                                 LDAP_XSTRING(mdb_add) ": parent is alias\n",
219                                 0, 0, 0 );
220                         rs->sr_err = LDAP_ALIAS_PROBLEM;
221                         rs->sr_text = "parent is an alias";
222                         goto return_results;;
223                 }
224
225                 if ( is_entry_referral( p ) ) {
226                         /* parent is a referral, don't allow add */
227                         rs->sr_matched = ber_strdup_x( p->e_name.bv_val,
228                                 op->o_tmpmemctx );
229                         rs->sr_ref = get_entry_referrals( op, p );
230                         mdb_entry_return( p );
231                         p = NULL;
232                         Debug( LDAP_DEBUG_TRACE,
233                                 LDAP_XSTRING(mdb_add) ": parent is referral\n",
234                                 0, 0, 0 );
235
236                         rs->sr_err = LDAP_REFERRAL;
237                         rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
238                         goto return_results;
239                 }
240
241         }
242
243         if ( subentry ) {
244                 /* FIXME: */
245                 /* parent must be an administrative point of the required kind */
246         }
247
248         /* free parent */
249         if ( p != (Entry *)&slap_entry_root ) {
250                 pid = p->e_id;
251                 if ( p->e_nname.bv_len ) {
252                         struct berval ppdn;
253
254                         /* ITS#5326: use parent's DN if differs from provided one */
255                         dnParent( &op->ora_e->e_name, &ppdn );
256                         if ( !dn_match( &p->e_name, &ppdn ) ) {
257                                 struct berval rdn;
258                                 struct berval newdn;
259
260                                 dnRdn( &op->ora_e->e_name, &rdn );
261
262                                 build_new_dn( &newdn, &p->e_name, &rdn, NULL ); 
263                                 if ( op->ora_e->e_name.bv_val != op->o_req_dn.bv_val )
264                                         ber_memfree( op->ora_e->e_name.bv_val );
265                                 op->ora_e->e_name = newdn;
266
267                                 /* FIXME: should check whether
268                                  * dnNormalize(newdn) == e->e_nname ... */
269                         }
270                 }
271
272                 mdb_entry_return( p );
273         }
274         p = NULL;
275
276         rs->sr_err = access_allowed( op, op->ora_e,
277                 entry, NULL, ACL_WADD, NULL );
278
279         if ( ! rs->sr_err ) {
280                 Debug( LDAP_DEBUG_TRACE,
281                         LDAP_XSTRING(mdb_add) ": no write access to entry\n",
282                         0, 0, 0 );
283                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
284                 rs->sr_text = "no write access to entry";
285                 goto return_results;;
286         }
287
288         /* 
289          * Check ACL for attribute write access
290          */
291         if (!acl_check_modlist(op, oe, op->ora_modlist)) {
292                 Debug( LDAP_DEBUG_TRACE,
293                         LDAP_XSTRING(mdb_add) ": no write access to attribute\n",
294                         0, 0, 0 );
295                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
296                 rs->sr_text = "no write access to attribute";
297                 goto return_results;;
298         }
299
300         if ( eid == NOID ) {
301                 rs->sr_err = mdb_next_id( op->o_bd, txn, &eid );
302                 if( rs->sr_err != 0 ) {
303                         Debug( LDAP_DEBUG_TRACE,
304                                 LDAP_XSTRING(mdb_add) ": next_id failed (%d)\n",
305                                 rs->sr_err, 0, 0 );
306                         rs->sr_err = LDAP_OTHER;
307                         rs->sr_text = "internal error";
308                         goto return_results;
309                 }
310                 op->ora_e->e_id = eid;
311         }
312
313         /* dn2id index */
314         rs->sr_err = mdb_dn2id_add( op, txn, pid, op->ora_e );
315         if ( rs->sr_err != 0 ) {
316                 Debug( LDAP_DEBUG_TRACE,
317                         LDAP_XSTRING(mdb_add) ": dn2id_add failed: %s (%d)\n",
318                         mdb_strerror(rs->sr_err), rs->sr_err, 0 );
319
320                 switch( rs->sr_err ) {
321                 case MDB_KEYEXIST:
322                         rs->sr_err = LDAP_ALREADY_EXISTS;
323                         break;
324                 default:
325                         rs->sr_err = LDAP_OTHER;
326                 }
327                 goto return_results;
328         }
329
330         /* attribute indexes */
331         rs->sr_err = mdb_index_entry_add( op, txn, op->ora_e );
332         if ( rs->sr_err != LDAP_SUCCESS ) {
333                 Debug( LDAP_DEBUG_TRACE,
334                         LDAP_XSTRING(mdb_add) ": index_entry_add failed\n",
335                         0, 0, 0 );
336                 rs->sr_err = LDAP_OTHER;
337                 rs->sr_text = "index generation failed";
338                 goto return_results;
339         }
340
341         /* id2entry index */
342         rs->sr_err = mdb_id2entry_add( op, txn, op->ora_e );
343         if ( rs->sr_err != 0 ) {
344                 Debug( LDAP_DEBUG_TRACE,
345                         LDAP_XSTRING(mdb_add) ": id2entry_add failed\n",
346                         0, 0, 0 );
347                 rs->sr_err = LDAP_OTHER;
348                 rs->sr_text = "entry store failed";
349                 goto return_results;
350         }
351
352         /* post-read */
353         if( op->o_postread ) {
354                 if( postread_ctrl == NULL ) {
355                         postread_ctrl = &ctrls[num_ctrls++];
356                         ctrls[num_ctrls] = NULL;
357                 }
358                 if ( slap_read_controls( op, rs, op->ora_e,
359                         &slap_post_read_bv, postread_ctrl ) )
360                 {
361                         Debug( LDAP_DEBUG_TRACE,
362                                 "<=- " LDAP_XSTRING(mdb_add) ": post-read "
363                                 "failed!\n", 0, 0, 0 );
364                         if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
365                                 /* FIXME: is it correct to abort
366                                  * operation if control fails? */
367                                 goto return_results;
368                         }
369                 }
370         }
371
372         if ( moi == &opinfo ) {
373                 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
374                 opinfo.moi_oe.oe_key = NULL;
375                 if ( op->o_noop ) {
376                         mdb_txn_abort( txn );
377                         rs->sr_err = LDAP_X_NO_OPERATION;
378                         txn = NULL;
379                         goto return_results;
380                 }
381
382                 if (( rs->sr_err = mdb_txn_commit( txn )) != 0 ) {
383                         rs->sr_text = "txn_commit failed";
384                         Debug( LDAP_DEBUG_TRACE,
385                                 LDAP_XSTRING(mdb_add) ": %s : %s (%d)\n",
386                                 rs->sr_text, mdb_strerror(rs->sr_err), rs->sr_err );
387                         rs->sr_err = LDAP_OTHER;
388                         goto return_results;
389                 }
390                 txn = NULL;
391         }
392
393         Debug(LDAP_DEBUG_TRACE,
394                 LDAP_XSTRING(mdb_add) ": added%s id=%08lx dn=\"%s\"\n",
395                 op->o_noop ? " (no-op)" : "",
396                 op->ora_e->e_id, op->ora_e->e_dn );
397
398         rs->sr_text = NULL;
399         if( num_ctrls ) rs->sr_ctrls = ctrls;
400
401 return_results:
402         success = rs->sr_err;
403         send_ldap_result( op, rs );
404
405         if( moi == &opinfo ) {
406                 if( txn != NULL ) {
407                         mdb_txn_abort( txn );
408                 }
409                 if ( opinfo.moi_oe.oe_key ) {
410                         LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
411                 }
412         }
413
414         if( success == LDAP_SUCCESS ) {
415 #if 0
416                 if ( mdb->bi_txn_cp_kbyte ) {
417                         TXN_CHECKPOINT( mdb->bi_dbenv,
418                                 mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );
419                 }
420 #endif
421         }
422
423         slap_graduate_commit_csn( op );
424
425         if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
426                 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
427                 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
428         }
429         return rs->sr_err;
430 }