3 * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
7 * Copyright (c) 1995 Regents of the University of Michigan.
10 * Redistribution and use in source and binary forms are permitted
11 * provided that this notice is preserved and that due credit is given
12 * to the University of Michigan at Ann Arbor. The name of the University
13 * may not be used to endorse or promote products derived from this
14 * software without specific prior written permission. This software
15 * is provided ``as is'' without express or implied warranty.
22 #include <ac/socket.h>
23 #include <ac/string.h>
35 char *dn, *ndn = NULL;
39 LDAPModList *modlist = NULL;
40 LDAPModList **modtail = &modlist;
44 Modifications *mods = NULL;
49 Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
52 * Parse the modify request. It looks like this:
54 * ModifyRequest := [APPLICATION 6] SEQUENCE {
55 * name DistinguishedName,
56 * mods SEQUENCE OF SEQUENCE {
57 * operation ENUMERATED {
62 * modification SEQUENCE {
64 * values SET OF AttributeValue
70 if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
71 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
72 send_ldap_disconnect( conn, op,
73 LDAP_PROTOCOL_ERROR, "decoding error" );
74 return SLAPD_DISCONNECT;
77 Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn, 0, 0 );
79 /* collect modifications & save for later */
81 for ( tag = ber_first_element( op->o_ber, &len, &last );
83 tag = ber_next_element( op->o_ber, &len, last ) )
87 (*modtail) = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
89 if ( ber_scanf( op->o_ber, "{i{a[V]}}", &mop,
90 &(*modtail)->ml_type, &(*modtail)->ml_bvalues )
93 send_ldap_disconnect( conn, op,
94 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
95 rc = SLAPD_DISCONNECT;
101 if ( (*modtail)->ml_bvalues == NULL ) {
102 Debug( LDAP_DEBUG_ANY,
103 "do_modify: modify/add operation (%ld) requires values\n",
105 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
106 NULL, "modify/add operation requires values",
108 rc = LDAP_PROTOCOL_ERROR;
114 case LDAP_MOD_DELETE:
115 case LDAP_MOD_REPLACE:
119 Debug( LDAP_DEBUG_ANY,
120 "do_modify: invalid modify operation (%ld)\n",
122 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
123 NULL, "unrecognized modify operation", NULL, NULL );
124 rc = LDAP_PROTOCOL_ERROR;
129 (*modtail)->ml_op = mop;
130 modtail = &(*modtail)->ml_next;
134 if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
135 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
139 ndn = ch_strdup( dn );
141 if( dn_normalize( ndn ) == NULL ) {
142 Debug( LDAP_DEBUG_ANY, "do_modify: invalid dn (%s)\n", dn, 0, 0 );
143 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
144 "invalid DN", NULL, NULL );
149 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
150 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
151 NULL, "modify upon the root DSE not supported", NULL, NULL );
156 Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
157 for ( tmp = modlist; tmp != NULL; tmp = tmp->ml_next ) {
158 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
159 tmp->ml_op == LDAP_MOD_ADD
160 ? "add" : (tmp->ml_op == LDAP_MOD_DELETE
161 ? "delete" : "replace"), tmp->ml_type, 0 );
165 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MOD dn=\"%s\"\n",
166 op->o_connid, op->o_opid, dn, 0, 0 );
169 * We could be serving multiple database backends. Select the
170 * appropriate one, or send a referral to our "referral server"
171 * if we don't hold it.
173 if ( (be = select_backend( ndn )) == NULL ) {
174 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
175 NULL, NULL, default_referral, NULL );
179 /* check restrictions */
180 rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
181 if( rc != LDAP_SUCCESS ) {
182 send_ldap_result( conn, op, rc,
183 NULL, text, NULL, NULL );
187 /* check for referrals */
188 rc = backend_check_referrals( be, conn, op, dn, ndn );
189 if ( rc != LDAP_SUCCESS ) {
193 /* deref suffix alias if appropriate */
194 ndn = suffix_alias( be, ndn );
197 * do the modify if 1 && (2 || 3)
198 * 1) there is a modify function implemented in this backend;
199 * 2) this backend is master for what it holds;
200 * 3) it's a replica and the dn supplied is the update_ndn.
202 if ( be->be_modify ) {
203 /* do the update here */
204 #ifndef SLAPD_MULTIMASTER
205 /* we don't have to check for replicator dn
206 * because we accept each modify request
208 if ( be->be_update_ndn == NULL ||
209 strcmp( be->be_update_ndn, op->o_ndn ) == 0 )
212 int update = be->be_update_ndn != NULL;
214 rc = slap_modlist2mods( modlist, update, &mods, &text );
216 if( rc != LDAP_SUCCESS ) {
217 send_ldap_result( conn, op, rc,
218 NULL, text, NULL, NULL );
222 if ( (be->be_lastmod == ON || (be->be_lastmod == UNDEFINED &&
223 global_lastmod == ON)) && !update )
225 Modifications **modstail;
226 for( modstail = &mods;
228 modstail = &(*modstail)->sml_next )
232 rc = slap_mods_opattrs( op, modstail, &text );
234 if( rc != LDAP_SUCCESS ) {
235 send_ldap_result( conn, op, rc,
242 if ( (*be->be_modify)( be, conn, op, dn, ndn, mods ) == 0
243 #ifdef SLAPD_MULTIMASTER
244 && ( be->be_update_ndn == NULL ||
245 strcmp( be->be_update_ndn, op->o_ndn ) != 0 )
248 /* but we log only the ones not from a replicator user */
249 replog( be, op, dn, mods );
252 #ifndef SLAPD_MULTIMASTER
253 /* send a referral */
255 send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
256 be->be_update_refs ? be->be_update_refs : default_referral,
261 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
262 NULL, "operation not supported within namingContext", NULL, NULL );
267 if( ndn != NULL ) free( ndn );
268 if ( modlist != NULL )
269 slap_modlist_free( modlist );
271 slap_mods_free( mods );
276 * convert a raw list of modifications to internal format
277 * Do basic attribute type checking and syntax validation.
279 int slap_modlist2mods(
282 Modifications **mods,
286 Modifications **modtail = mods;
288 for( ; ml != NULL; ml = ml->ml_next ) {
290 AttributeDescription *ad = NULL;
292 mod = (Modifications *)
293 ch_calloc( 1, sizeof(Modifications) );
296 mod->sml_op = ml->ml_op;
298 /* convert to attribute description */
299 rc = slap_str2ad( ml->ml_type, &mod->sml_desc, text );
301 if( rc != LDAP_SUCCESS ) {
302 slap_mods_free( mod );
308 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
309 && !slap_ad_is_binary( ad ))
311 /* attribute requires binary transfer */
312 slap_mods_free( mod );
313 *text = "attribute requires ;binary transfer";
314 return LDAP_UNDEFINED_TYPE;
317 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
318 && slap_ad_is_binary( ad ))
320 /* attribute requires binary transfer */
321 slap_mods_free( mod );
322 *text = "attribute disallows ;binary transfer";
323 return LDAP_UNDEFINED_TYPE;
326 if (!update && is_at_no_user_mod( ad->ad_type )) {
327 /* user modification disallowed */
328 slap_mods_free( mod );
329 *text = "no user modification allowed";
330 return LDAP_CONSTRAINT_VIOLATION;
336 if( ml->ml_bvalues != NULL ) {
338 slap_syntax_validate_func *validate =
339 ad->ad_type->sat_syntax->ssyn_validate;
342 Debug( LDAP_DEBUG_TRACE,
343 "modlist2mods: no validator for syntax %s\n",
344 ad->ad_type->sat_syntax->ssyn_oid, 0, 0 );
345 slap_mods_free( mod );
346 *text = "no validator for syntax";
347 return LDAP_INVALID_SYNTAX;
351 * check that each value is valid per syntax
353 for( nvals = 0; ml->ml_bvalues[nvals]; nvals++ ) {
354 rc = validate( ad->ad_type->sat_syntax, ml->ml_bvalues[nvals] );
357 slap_mods_free( mod );
358 *text = "value contains invalid data";
359 return LDAP_INVALID_SYNTAX;
364 * a rough single value check... an additional check is needed
365 * to catch add of single value to existing single valued attribute
367 if( ( mod->sml_op == LDAP_MOD_ADD || mod->sml_op == LDAP_MOD_REPLACE )
368 && nvals > 1 && is_at_single_value( ad->ad_type ))
370 slap_mods_free( mod );
371 *text = "multiple values provided";
372 return LDAP_INVALID_SYNTAX;
376 mod->sml_bvalues = ml->ml_bvalues;
377 ml->ml_values = NULL;
380 modtail = &mod->sml_next;
386 int slap_mods_opattrs(
388 Modifications **modtail,
391 struct berval name, timestamp;
392 time_t now = slap_get_time();
397 int mop = op->o_tag == LDAP_REQ_ADD
398 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
400 assert( modtail != NULL );
401 assert( *modtail == NULL );
403 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
404 ltm = gmtime( &now );
405 strftime( timebuf, sizeof(timebuf), "%Y%m%d%H%M%SZ", ltm );
406 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
407 timestamp.bv_val = timebuf;
408 timestamp.bv_len = strlen(timebuf);
410 if( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
411 name.bv_val = SLAPD_ANONYMOUS;
412 name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
414 name.bv_val = op->o_dn;
415 name.bv_len = strlen( op->o_dn );
418 if( op->o_tag == LDAP_REQ_ADD ) {
419 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
421 mod->sml_desc = ad_dup( slap_schema.si_ad_creatorsName );
422 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
423 mod->sml_bvalues[0] = ber_bvdup( &name );
424 mod->sml_bvalues[1] = NULL;
427 modtail = &mod->sml_next;
429 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
431 mod->sml_desc = ad_dup( slap_schema.si_ad_createTimestamp );
432 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
433 mod->sml_bvalues[0] = ber_bvdup( ×tamp );
434 mod->sml_bvalues[1] = NULL;
436 modtail = &mod->sml_next;
439 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
441 mod->sml_desc = ad_dup( slap_schema.si_ad_modifiersName );
442 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
443 mod->sml_bvalues[0] = ber_bvdup( &name );
444 mod->sml_bvalues[1] = NULL;
446 modtail = &mod->sml_next;
448 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
450 mod->sml_desc = ad_dup( slap_schema.si_ad_modifyTimestamp );
451 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
452 mod->sml_bvalues[0] = ber_bvdup( ×tamp );
453 mod->sml_bvalues[1] = NULL;
455 modtail = &mod->sml_next;
467 ad_free( mod->sm_desc, 1 );
469 if ( mod->sm_bvalues != NULL )
470 ber_bvecfree( mod->sm_bvalues );
483 for ( ; ml != NULL; ml = next ) {
486 slap_mod_free( &ml->sml_mod, 0 );
498 for ( ; ml != NULL; ml = next ) {
504 if ( ml->ml_bvalues != NULL )
505 ber_bvecfree( ml->ml_bvalues );