3 * Copyright 1998-1999 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>
29 static void modlist_free(Modifications *ml);
31 static int add_modified_attrs( Operation *op, Modifications **modlist );
43 Modifications *modlist = NULL;
44 Modifications **modtail = &modlist;
51 Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
53 if( op->o_bind_in_progress ) {
54 Debug( LDAP_DEBUG_ANY, "do_modify: SASL bind in progress.\n",
56 send_ldap_result( conn, op, LDAP_SASL_BIND_IN_PROGRESS,
57 NULL, "SASL bind in progress", NULL, NULL );
58 return LDAP_SASL_BIND_IN_PROGRESS;
62 * Parse the modify request. It looks like this:
64 * ModifyRequest := [APPLICATION 6] SEQUENCE {
65 * name DistinguishedName,
66 * mods SEQUENCE OF SEQUENCE {
67 * operation ENUMERATED {
72 * modification SEQUENCE {
74 * values SET OF AttributeValue
80 if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
81 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
82 send_ldap_disconnect( conn, op,
83 LDAP_PROTOCOL_ERROR, "decoding error" );
87 Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn, 0, 0 );
89 ndn = ch_strdup( dn );
91 if( dn_normalize( ndn ) == NULL ) {
92 Debug( LDAP_DEBUG_ANY, "do_modify: invalid dn (%s)\n", dn, 0, 0 );
93 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
94 "invalid DN", NULL, NULL );
98 /* collect modifications & save for later */
100 for ( tag = ber_first_element( op->o_ber, &len, &last );
102 tag = ber_next_element( op->o_ber, &len, last ) )
106 (*modtail) = (Modifications *) ch_calloc( 1, sizeof(Modifications) );
108 #ifdef SLAPD_SCHEMA_NOT_COMPAT
109 /* not yet implemented */
111 if ( ber_scanf( op->o_ber, "{i{a[V]}}", &mop,
112 &(*modtail)->ml_type, &(*modtail)->ml_bvalues )
115 send_ldap_disconnect( conn, op,
116 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
122 (*modtail)->ml_op = mop;
124 if ( (*modtail)->ml_op != LDAP_MOD_ADD &&
125 (*modtail)->ml_op != LDAP_MOD_DELETE &&
126 (*modtail)->ml_op != LDAP_MOD_REPLACE )
128 Debug( LDAP_DEBUG_ANY,
129 "do_modify: invalid modify operation (%ld)\n",
130 (long) (*modtail)->ml_op, 0, 0 );
131 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
132 NULL, "unrecognized modify operation", NULL, NULL );
133 rc = LDAP_PROTOCOL_ERROR;
137 if ( (*modtail)->ml_bvalues == NULL && (
138 (*modtail)->ml_op != LDAP_MOD_REPLACE &&
139 (*modtail)->ml_op != LDAP_MOD_DELETE ) )
141 Debug( LDAP_DEBUG_ANY,
142 "do_modify: invalid modify operation (%ld) without values\n",
143 (long) (*modtail)->ml_op, 0, 0 );
144 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
145 NULL, "unrecognized modify operation without values",
147 rc = LDAP_PROTOCOL_ERROR;
151 #ifndef SLAPD_SCHEMA_NOT_COMPAT
152 attr_normalize( (*modtail)->ml_type );
155 modtail = &(*modtail)->ml_next;
159 #ifdef SLAPD_SCHEMA_NOT_COMPAT
160 /* not yet implemented */
163 Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
164 for ( tmp = modlist; tmp != NULL; tmp = tmp->ml_next ) {
165 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
166 tmp->ml_op == LDAP_MOD_ADD
167 ? "add" : (tmp->ml_op == LDAP_MOD_DELETE
168 ? "delete" : "replace"), tmp->ml_type, 0 );
173 if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
174 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
178 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MOD dn=\"%s\"\n",
179 op->o_connid, op->o_opid, dn, 0, 0 );
182 * We could be serving multiple database backends. Select the
183 * appropriate one, or send a referral to our "referral server"
184 * if we don't hold it.
186 if ( (be = select_backend( ndn )) == NULL ) {
187 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
188 NULL, NULL, default_referral, NULL );
192 /* make sure this backend recongizes critical controls */
193 rc = backend_check_controls( be, conn, op ) ;
195 if( rc != LDAP_SUCCESS ) {
196 send_ldap_result( conn, op, rc,
197 NULL, NULL, NULL, NULL );
201 if ( global_readonly || be->be_readonly ) {
202 Debug( LDAP_DEBUG_ANY, "do_modify: database is read-only\n",
204 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
205 NULL, "database is read-only", NULL, NULL );
209 /* deref suffix alias if appropriate */
210 ndn = suffix_alias( be, ndn );
213 * do the modify if 1 && (2 || 3)
214 * 1) there is a modify function implemented in this backend;
215 * 2) this backend is master for what it holds;
216 * 3) it's a replica and the dn supplied is the update_ndn.
218 if ( be->be_modify ) {
219 /* do the update here */
220 #ifndef SLAPD_MULTIMASTER
221 /* we don't have to check for replicator dn
222 * because we accept each modify request
224 if ( be->be_update_ndn == NULL ||
225 strcmp( be->be_update_ndn, op->o_ndn ) == 0 )
228 if ( (be->be_lastmod == ON || (be->be_lastmod == UNDEFINED &&
229 global_lastmod == ON)) && be->be_update_ndn == NULL )
231 rc = add_modified_attrs( op, &modlist );
233 if( rc != LDAP_SUCCESS ) {
234 send_ldap_result( conn, op, rc,
235 NULL, "no-user-modification attribute type",
241 if ( (*be->be_modify)( be, conn, op, dn, ndn, modlist ) == 0
242 #ifdef SLAPD_MULTIMASTER
243 && ( be->be_update_ndn == NULL ||
244 strcmp( be->be_update_ndn, op->o_ndn ) != 0 )
247 /* but we log only the ones not from a replicator user */
248 replog( be, op, dn, modlist );
251 #ifndef SLAPD_MULTIMASTER
252 /* send a referral */
254 send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
255 be->be_update_refs ? be->be_update_refs : default_referral,
260 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
261 NULL, "Function not implemented", NULL, NULL );
267 if ( modlist != NULL )
268 modlist_free( modlist );
273 add_modified_attrs( Operation *op, Modifications **modlist )
277 struct berval *bvals[2];
285 #ifdef SLAPD_SCHEMA_NOT_COMPAT
286 /* not yet implemented */
288 /* remove any attempts by the user to modify these attrs */
289 for ( m = *modlist; m != NULL; m = m->ml_next ) {
290 if ( oc_check_op_no_usermod_attr( m->ml_type ) ) {
291 return LDAP_CONSTRAINT_VIOLATION;
295 if ( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
296 bv.bv_val = "NULLDN";
297 bv.bv_len = strlen( bv.bv_val );
299 bv.bv_val = op->o_dn;
300 bv.bv_len = strlen( bv.bv_val );
302 m = (Modifications *) ch_calloc( 1, sizeof(Modifications) );
303 m->ml_type = ch_strdup( "modifiersname" );
304 m->ml_op = LDAP_MOD_REPLACE;
305 m->ml_bvalues = (struct berval **) ch_calloc(2, sizeof(struct berval *));
306 m->ml_bvalues[0] = ber_bvdup( &bv );
307 m->ml_next = *modlist;
310 currenttime = slap_get_time();
311 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
312 ltm = gmtime( ¤ttime );
313 strftime( buf, sizeof(buf), "%Y%m%d%H%M%SZ", ltm );
314 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
317 bv.bv_len = strlen( bv.bv_val );
318 m = (Modifications *) ch_calloc( 1, sizeof(Modifications) );
319 m->ml_type = ch_strdup( "modifytimestamp" );
320 m->ml_op = LDAP_MOD_REPLACE;
321 m->ml_bvalues = (struct berval **) ch_calloc(2, sizeof(struct berval *));
322 m->ml_bvalues[0] = ber_bvdup( &bv );
323 m->ml_next = *modlist;
337 #ifdef SLAPD_SCHEMA_NOT_COMPAT
338 /* not yet implemented */
340 for ( ; ml != NULL; ml = next ) {
346 if ( ml->ml_bvalues != NULL )
347 ber_bvecfree( ml->ml_bvalues );