1 /* add.cpp - ldap NDB back-end add routine */
2 /* $OpenLDAP$ */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 *
5 * Copyright 2008-2021 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 /* ACKNOWLEDGEMENTS:
17 * This work was initially developed by Howard Chu for inclusion
18 * in OpenLDAP Software. This work was sponsored by MySQL.
19 */
20
21 #include "portable.h"
22
23 #include <stdio.h>
24 #include <ac/string.h>
25
26 #include "back-ndb.h"
27
28 extern "C" int
ndb_back_add(Operation * op,SlapReply * rs)29 ndb_back_add(Operation *op, SlapReply *rs )
30 {
31 struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
32 Entry p = {0};
33 Attribute poc;
34 char textbuf[SLAP_TEXT_BUFLEN];
35 size_t textlen = sizeof textbuf;
36 AttributeDescription *children = slap_schema.si_ad_children;
37 AttributeDescription *entry = slap_schema.si_ad_entry;
38 NdbArgs NA;
39 NdbRdns rdns;
40 struct berval matched;
41 struct berval pdn, pndn;
42
43 int num_retries = 0;
44 int success;
45
46 LDAPControl **postread_ctrl = NULL;
47 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
48 int num_ctrls = 0;
49
50 Debug(LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(ndb_back_add) ": %s\n",
51 op->oq_add.rs_e->e_name.bv_val, 0, 0);
52
53 ctrls[num_ctrls] = 0;
54 NA.txn = NULL;
55
56 /* check entry's schema */
57 rs->sr_err = entry_schema_check( op, op->oq_add.rs_e, NULL,
58 get_relax(op), 1, NULL, &rs->sr_text, textbuf, textlen );
59 if ( rs->sr_err != LDAP_SUCCESS ) {
60 Debug( LDAP_DEBUG_TRACE,
61 LDAP_XSTRING(ndb_back_add) ": entry failed schema check: "
62 "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
63 goto return_results;
64 }
65
66 /* add opattrs to shadow as well, only missing attrs will actually
67 * be added; helps compatibility with older OL versions */
68 rs->sr_err = slap_add_opattrs( op, &rs->sr_text, textbuf, textlen, 1 );
69 if ( rs->sr_err != LDAP_SUCCESS ) {
70 Debug( LDAP_DEBUG_TRACE,
71 LDAP_XSTRING(ndb_back_add) ": entry failed op attrs add: "
72 "%s (%d)\n", rs->sr_text, rs->sr_err, 0 );
73 goto return_results;
74 }
75
76 /* Get our NDB handle */
77 rs->sr_err = ndb_thread_handle( op, &NA.ndb );
78
79 /*
80 * Get the parent dn and see if the corresponding entry exists.
81 */
82 if ( be_issuffix( op->o_bd, &op->oq_add.rs_e->e_nname ) ) {
83 pdn = slap_empty_bv;
84 pndn = slap_empty_bv;
85 } else {
86 dnParent( &op->ora_e->e_name, &pdn );
87 dnParent( &op->ora_e->e_nname, &pndn );
88 }
89 p.e_name = op->ora_e->e_name;
90 p.e_nname = op->ora_e->e_nname;
91
92 op->ora_e->e_id = NOID;
93 rdns.nr_num = 0;
94 NA.rdns = &rdns;
95
96 if( 0 ) {
97 retry: /* transaction retry */
98 NA.txn->close();
99 NA.txn = NULL;
100 if ( op->o_abandon ) {
101 rs->sr_err = SLAPD_ABANDON;
102 goto return_results;
103 }
104 ndb_trans_backoff( ++num_retries );
105 }
106
107 NA.txn = NA.ndb->startTransaction();
108 rs->sr_text = NULL;
109 if( !NA.txn ) {
110 Debug( LDAP_DEBUG_TRACE,
111 LDAP_XSTRING(ndb_back_add) ": startTransaction failed: %s (%d)\n",
112 NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 );
113 rs->sr_err = LDAP_OTHER;
114 rs->sr_text = "internal error";
115 goto return_results;
116 }
117
118 /* get entry or parent */
119 NA.e = &p;
120 NA.ocs = NULL;
121 rs->sr_err = ndb_entry_get_info( op, &NA, 0, &matched );
122 switch( rs->sr_err ) {
123 case 0:
124 rs->sr_err = LDAP_ALREADY_EXISTS;
125 goto return_results;
126 case LDAP_NO_SUCH_OBJECT:
127 break;
128 #if 0
129 case DB_LOCK_DEADLOCK:
130 case DB_LOCK_NOTGRANTED:
131 goto retry;
132 #endif
133 case LDAP_BUSY:
134 rs->sr_text = "ldap server busy";
135 goto return_results;
136 default:
137 rs->sr_err = LDAP_OTHER;
138 rs->sr_text = "internal error";
139 goto return_results;
140 }
141
142 if ( NA.ocs ) {
143 int i;
144 for ( i=0; !BER_BVISNULL( &NA.ocs[i] ); i++ );
145 poc.a_numvals = i;
146 poc.a_desc = slap_schema.si_ad_objectClass;
147 poc.a_vals = NA.ocs;
148 poc.a_nvals = poc.a_vals;
149 poc.a_next = NULL;
150 p.e_attrs = &poc;
151 }
152
153 if ( ber_bvstrcasecmp( &pndn, &matched ) ) {
154 rs->sr_matched = matched.bv_val;
155 Debug( LDAP_DEBUG_TRACE,
156 LDAP_XSTRING(ndb_back_add) ": parent "
157 "does not exist\n", 0, 0, 0 );
158
159 rs->sr_text = "parent does not exist";
160 rs->sr_err = LDAP_NO_SUCH_OBJECT;
161 if ( p.e_attrs && is_entry_referral( &p )) {
162 is_ref: p.e_attrs = NULL;
163 ndb_entry_get_data( op, &NA, 0 );
164 rs->sr_ref = get_entry_referrals( op, &p );
165 rs->sr_err = LDAP_REFERRAL;
166 rs->sr_flags = REP_REF_MUSTBEFREED;
167 attrs_free( p.e_attrs );
168 p.e_attrs = NULL;
169 }
170 goto return_results;
171 }
172
173 p.e_name = pdn;
174 p.e_nname = pndn;
175 rs->sr_err = access_allowed( op, &p,
176 children, NULL, ACL_WADD, NULL );
177
178 if ( ! rs->sr_err ) {
179 Debug( LDAP_DEBUG_TRACE,
180 LDAP_XSTRING(ndb_back_add) ": no write access to parent\n",
181 0, 0, 0 );
182 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
183 rs->sr_text = "no write access to parent";
184 goto return_results;
185 }
186
187 if ( NA.ocs ) {
188 if ( is_entry_subentry( &p )) {
189 /* parent is a subentry, don't allow add */
190 Debug( LDAP_DEBUG_TRACE,
191 LDAP_XSTRING(ndb_back_add) ": parent is subentry\n",
192 0, 0, 0 );
193 rs->sr_err = LDAP_OBJECT_CLASS_VIOLATION;
194 rs->sr_text = "parent is a subentry";
195 goto return_results;
196 }
197
198 if ( is_entry_alias( &p ) ) {
199 /* parent is an alias, don't allow add */
200 Debug( LDAP_DEBUG_TRACE,
201 LDAP_XSTRING(ndb_back_add) ": parent is alias\n",
202 0, 0, 0 );
203 rs->sr_err = LDAP_ALIAS_PROBLEM;
204 rs->sr_text = "parent is an alias";
205 goto return_results;
206 }
207
208 if ( is_entry_referral( &p ) ) {
209 /* parent is a referral, don't allow add */
210 rs->sr_matched = p.e_name.bv_val;
211 goto is_ref;
212 }
213 }
214
215 rs->sr_err = access_allowed( op, op->ora_e,
216 entry, NULL, ACL_WADD, NULL );
217
218 if ( ! rs->sr_err ) {
219 Debug( LDAP_DEBUG_TRACE,
220 LDAP_XSTRING(ndb_back_add) ": no write access to entry\n",
221 0, 0, 0 );
222 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
223 rs->sr_text = "no write access to entry";
224 goto return_results;;
225 }
226
227 /*
228 * Check ACL for attribute write access
229 */
230 if (!acl_check_modlist(op, op->ora_e, op->ora_modlist)) {
231 Debug( LDAP_DEBUG_TRACE,
232 LDAP_XSTRING(bdb_add) ": no write access to attribute\n",
233 0, 0, 0 );
234 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
235 rs->sr_text = "no write access to attribute";
236 goto return_results;;
237 }
238
239
240 /* acquire entry ID */
241 if ( op->ora_e->e_id == NOID ) {
242 rs->sr_err = ndb_next_id( op->o_bd, NA.ndb, &op->ora_e->e_id );
243 if( rs->sr_err != 0 ) {
244 Debug( LDAP_DEBUG_TRACE,
245 LDAP_XSTRING(ndb_back_add) ": next_id failed (%d)\n",
246 rs->sr_err, 0, 0 );
247 rs->sr_err = LDAP_OTHER;
248 rs->sr_text = "internal error";
249 goto return_results;
250 }
251 }
252
253 if ( matched.bv_val )
254 rdns.nr_num++;
255 NA.e = op->ora_e;
256 /* dn2id index */
257 rs->sr_err = ndb_entry_put_info( op->o_bd, &NA, 0 );
258 if ( rs->sr_err ) {
259 Debug( LDAP_DEBUG_TRACE,
260 LDAP_XSTRING(ndb_back_add) ": ndb_entry_put_info failed (%d)\n",
261 rs->sr_err, 0, 0 );
262 rs->sr_text = "internal error";
263 goto return_results;
264 }
265
266 /* id2entry index */
267 rs->sr_err = ndb_entry_put_data( op->o_bd, &NA );
268 if ( rs->sr_err ) {
269 Debug( LDAP_DEBUG_TRACE,
270 LDAP_XSTRING(ndb_back_add) ": ndb_entry_put_data failed (%d) %s(%d)\n",
271 rs->sr_err, NA.txn->getNdbError().message, NA.txn->getNdbError().code );
272 rs->sr_text = "internal error";
273 goto return_results;
274 }
275
276 /* post-read */
277 if( op->o_postread ) {
278 if( postread_ctrl == NULL ) {
279 postread_ctrl = &ctrls[num_ctrls++];
280 ctrls[num_ctrls] = NULL;
281 }
282 if ( slap_read_controls( op, rs, op->oq_add.rs_e,
283 &slap_post_read_bv, postread_ctrl ) )
284 {
285 Debug( LDAP_DEBUG_TRACE,
286 "<=- " LDAP_XSTRING(ndb_back_add) ": post-read "
287 "failed!\n", 0, 0, 0 );
288 if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
289 /* FIXME: is it correct to abort
290 * operation if control fails? */
291 goto return_results;
292 }
293 }
294 }
295
296 if ( op->o_noop ) {
297 if (( rs->sr_err=NA.txn->execute( NdbTransaction::Rollback,
298 NdbOperation::AbortOnError, 1 )) != 0 ) {
299 rs->sr_text = "txn (no-op) failed";
300 } else {
301 rs->sr_err = LDAP_X_NO_OPERATION;
302 }
303
304 } else {
305 if(( rs->sr_err=NA.txn->execute( NdbTransaction::Commit,
306 NdbOperation::AbortOnError, 1 )) != 0 ) {
307 rs->sr_text = "txn_commit failed";
308 } else {
309 rs->sr_err = LDAP_SUCCESS;
310 }
311 }
312
313 if ( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_X_NO_OPERATION ) {
314 Debug( LDAP_DEBUG_TRACE,
315 LDAP_XSTRING(ndb_back_add) ": %s : %s (%d)\n",
316 rs->sr_text, NA.txn->getNdbError().message, NA.txn->getNdbError().code );
317 rs->sr_err = LDAP_OTHER;
318 goto return_results;
319 }
320 NA.txn->close();
321 NA.txn = NULL;
322
323 Debug(LDAP_DEBUG_TRACE,
324 LDAP_XSTRING(ndb_back_add) ": added%s id=%08lx dn=\"%s\"\n",
325 op->o_noop ? " (no-op)" : "",
326 op->oq_add.rs_e->e_id, op->oq_add.rs_e->e_dn );
327
328 rs->sr_text = NULL;
329 if( num_ctrls ) rs->sr_ctrls = ctrls;
330
331 return_results:
332 success = rs->sr_err;
333 send_ldap_result( op, rs );
334 slap_graduate_commit_csn( op );
335
336 if( NA.txn != NULL ) {
337 NA.txn->execute( Rollback );
338 NA.txn->close();
339 }
340
341 if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
342 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
343 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
344 }
345
346 return rs->sr_err;
347 }
348