+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
/*
* Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
* is provided ``as is'' without express or implied warranty.
*/
+#include "portable.h"
+
#include <stdio.h>
-#include <string.h>
-#include <time.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include "slap.h"
-extern Backend *select_backend();
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
-extern char *default_referral;
-extern time_t currenttime;
-extern pthread_mutex_t currenttime_mutex;
-extern int global_lastmod;
+#include "ldap_pvt.h"
+#include "slap.h"
-static void modlist_free();
-static void add_lastmods();
-void
+int
do_modify(
Connection *conn,
- Operation *op
-)
+ Operation *op )
{
- char *dn, *odn;
+ char *dn, *ndn = NULL;
char *last;
- unsigned long tag, len;
- LDAPMod *mods, *tmp;
- LDAPMod **modtail;
+ ber_tag_t tag;
+ ber_len_t len;
+ LDAPModList *modlist = NULL;
+ LDAPModList **modtail = &modlist;
+#ifdef LDAP_DEBUG
+ LDAPModList *tmp;
+#endif
+ Modifications *mods = NULL;
Backend *be;
+ int rc;
+ const char *text;
+ int manageDSAit;
Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
* }
*/
- if ( ber_scanf( op->o_ber, "{a", &dn ) == LBER_ERROR ) {
- Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
- send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL, "" );
- return;
+ if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
+ Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
+ send_ldap_disconnect( conn, op,
+ LDAP_PROTOCOL_ERROR, "decoding error" );
+ return SLAPD_DISCONNECT;
}
- odn = strdup( dn );
- dn_normalize( dn );
Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn, 0, 0 );
/* collect modifications & save for later */
- mods = NULL;
- modtail = &mods;
+
for ( tag = ber_first_element( op->o_ber, &len, &last );
tag != LBER_DEFAULT;
tag = ber_next_element( op->o_ber, &len, last ) )
{
- (*modtail) = (LDAPMod *) ch_calloc( 1, sizeof(LDAPMod) );
+ ber_int_t mop;
+
+ (*modtail) = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
- if ( ber_scanf( op->o_ber, "{i{a[V]}}", &(*modtail)->mod_op,
- &(*modtail)->mod_type, &(*modtail)->mod_bvalues )
+ if ( ber_scanf( op->o_ber, "{i{a[V]}}", &mop,
+ &(*modtail)->ml_type, &(*modtail)->ml_bvalues )
== LBER_ERROR )
{
- send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL,
- "decoding error" );
- free( dn );
- free( odn );
- free( *modtail );
- modlist_free( mods );
- return;
+ send_ldap_disconnect( conn, op,
+ LDAP_PROTOCOL_ERROR, "decoding modlist error" );
+ rc = SLAPD_DISCONNECT;
+ goto cleanup;
}
- if ( (*modtail)->mod_op != LDAP_MOD_ADD &&
- (*modtail)->mod_op != LDAP_MOD_DELETE &&
- (*modtail)->mod_op != LDAP_MOD_REPLACE )
- {
- send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL,
- "unrecognized modify operation" );
- free( dn );
- free( odn );
- modlist_free( mods );
- return;
- }
+ switch( mop ) {
+ case LDAP_MOD_ADD:
+ if ( (*modtail)->ml_bvalues == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "do_modify: modify/add operation (%ld) requires values\n",
+ (long) mop, 0, 0 );
+ send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
+ NULL, "modify/add operation requires values",
+ NULL, NULL );
+ rc = LDAP_PROTOCOL_ERROR;
+ goto cleanup;
+ }
- if ( (*modtail)->mod_bvalues == NULL && (*modtail)->mod_op
- != LDAP_MOD_DELETE ) {
- send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL,
- "no values given" );
- free( dn );
- free( odn );
- modlist_free( mods );
- return;
+ /* fall through */
+
+ case LDAP_MOD_DELETE:
+ case LDAP_MOD_REPLACE:
+ break;
+
+ default: {
+ Debug( LDAP_DEBUG_ANY,
+ "do_modify: invalid modify operation (%ld)\n",
+ (long) mop, 0, 0 );
+ send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
+ NULL, "unrecognized modify operation", NULL, NULL );
+ rc = LDAP_PROTOCOL_ERROR;
+ goto cleanup;
+ }
}
- attr_normalize( (*modtail)->mod_type );
- modtail = &(*modtail)->mod_next;
+ (*modtail)->ml_op = mop;
+ modtail = &(*modtail)->ml_next;
}
*modtail = NULL;
+ if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
+ goto cleanup;
+ }
+
+ ndn = ch_strdup( dn );
+
+ if( dn_normalize( ndn ) == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "do_modify: invalid dn (%s)\n", dn, 0, 0 );
+ send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+ "invalid DN", NULL, NULL );
+ goto cleanup;
+ }
+
+ if( ndn == '\0' ) {
+ Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
+ send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+ NULL, "modify upon the root DSE not supported", NULL, NULL );
+ goto cleanup;
+ }
+
#ifdef LDAP_DEBUG
Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
- for ( tmp = mods; tmp != NULL; tmp = tmp->mod_next ) {
- Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n", tmp->mod_op
- == LDAP_MOD_ADD ? "add" : (tmp->mod_op == LDAP_MOD_DELETE ?
- "delete" : "replace"), tmp->mod_type, 0 );
+ for ( tmp = modlist; tmp != NULL; tmp = tmp->ml_next ) {
+ Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
+ tmp->ml_op == LDAP_MOD_ADD
+ ? "add" : (tmp->ml_op == LDAP_MOD_DELETE
+ ? "delete" : "replace"), tmp->ml_type, 0 );
}
#endif
- Statslog( LDAP_DEBUG_STATS, "conn=%d op=%d MOD dn=\"%s\"\n",
- conn->c_connid, op->o_opid, dn, 0, 0 );
+ Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MOD dn=\"%s\"\n",
+ op->o_connid, op->o_opid, dn, 0, 0 );
+
+ manageDSAit = get_manageDSAit( op );
/*
* We could be serving multiple database backends. Select the
* appropriate one, or send a referral to our "referral server"
* if we don't hold it.
*/
- if ( (be = select_backend( dn )) == NULL ) {
- free( dn );
- free( odn );
- modlist_free( mods );
- send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
- default_referral );
- return;
+ if ( (be = select_backend( ndn, manageDSAit )) == NULL ) {
+ send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+ NULL, NULL, default_referral, NULL );
+ goto cleanup;
+ }
+
+ /* check restrictions */
+ rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
+ if( rc != LDAP_SUCCESS ) {
+ send_ldap_result( conn, op, rc,
+ NULL, text, NULL, NULL );
+ goto cleanup;
}
+ /* check for referrals */
+ rc = backend_check_referrals( be, conn, op, dn, ndn );
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup;
+ }
+
+ /* deref suffix alias if appropriate */
+ ndn = suffix_alias( be, ndn );
+
/*
* do the modify if 1 && (2 || 3)
* 1) there is a modify function implemented in this backend;
* 2) this backend is master for what it holds;
- * 3) it's a replica and the dn supplied is the updatedn.
+ * 3) it's a replica and the dn supplied is the update_ndn.
*/
- if ( be->be_modify != NULL ) {
+ if ( be->be_modify ) {
/* do the update here */
- if ( be->be_updatedn == NULL || strcasecmp( be->be_updatedn,
- op->o_dn ) == 0 ) {
- if ( (be->be_lastmod == ON || be->be_lastmod == 0 &&
- global_lastmod == ON) && be->be_updatedn == NULL ) {
- add_lastmods( op, &mods );
+#ifndef SLAPD_MULTIMASTER
+ /* we don't have to check for replicator dn
+ * because we accept each modify request
+ */
+ if ( be->be_update_ndn == NULL ||
+ strcmp( be->be_update_ndn, op->o_ndn ) == 0 )
+#endif
+ {
+ int update = be->be_update_ndn != NULL;
+ const char *text;
+ rc = slap_modlist2mods( modlist, update, &mods, &text );
+
+ if( rc != LDAP_SUCCESS ) {
+ send_ldap_result( conn, op, rc,
+ NULL, text, NULL, NULL );
+ goto cleanup;
+ }
+
+ if ( (be->be_lastmod == ON || (be->be_lastmod == UNDEFINED &&
+ global_lastmod == ON)) && !update )
+ {
+ Modifications **modstail;
+ for( modstail = &mods;
+ *modstail != NULL;
+ modstail = &(*modstail)->sml_next )
+ {
+ /* empty */
+ }
+ rc = slap_mods_opattrs( op, modstail, &text );
+
+ if( rc != LDAP_SUCCESS ) {
+ send_ldap_result( conn, op, rc,
+ NULL, text,
+ NULL, NULL );
+ goto cleanup;
+ }
}
- if ( (*be->be_modify)( be, conn, op, odn, mods )
- == 0 ) {
- replog( be, LDAP_REQ_MODIFY, dn, mods, 0 );
+
+ if ( (*be->be_modify)( be, conn, op, dn, ndn, mods ) == 0
+#ifdef SLAPD_MULTIMASTER
+ && ( be->be_update_ndn == NULL ||
+ strcmp( be->be_update_ndn, op->o_ndn ) != 0 )
+#endif
+ ) {
+ /* but we log only the ones not from a replicator user */
+ replog( be, op, dn, mods );
}
+#ifndef SLAPD_MULTIMASTER
/* send a referral */
} else {
- send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
- default_referral );
+ send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
+ be->be_update_refs ? be->be_update_refs : default_referral,
+ NULL );
+#endif
}
} else {
- send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM, NULL,
- "Function not implemented" );
+ send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+ NULL, "operation not supported within namingContext", NULL, NULL );
}
+cleanup:
free( dn );
- free( odn );
- modlist_free( mods );
+ if( ndn != NULL ) free( ndn );
+ if ( modlist != NULL )
+ slap_modlist_free( modlist );
+ if ( mods != NULL )
+ slap_mods_free( mods );
+ return rc;
}
-static void
-modlist_free(
- LDAPMod *mods
-)
+/*
+ * convert a raw list of modifications to internal format
+ * Do basic attribute type checking and syntax validation.
+ */
+int slap_modlist2mods(
+ LDAPModList *ml,
+ int update,
+ Modifications **mods,
+ const char **text )
{
- LDAPMod *next;
-
- for ( ; mods != NULL; mods = next ) {
- next = mods->mod_next;
- free( mods->mod_type );
- if ( mods->mod_bvalues != NULL )
- ber_bvecfree( mods->mod_bvalues );
- free( mods );
- }
-}
+ int rc;
+ Modifications **modtail = mods;
-static void
-add_lastmods( Operation *op, LDAPMod **mods )
-{
- char buf[20];
- struct berval bv;
- struct berval *bvals[2];
- LDAPMod **m;
- LDAPMod *tmp;
- struct tm *ltm;
-
- Debug( LDAP_DEBUG_TRACE, "add_lastmods\n", 0, 0, 0 );
-
- bvals[0] = &bv;
- bvals[1] = NULL;
-
- /* remove any attempts by the user to modify these attrs */
- for ( m = mods; *m != NULL; m = &(*m)->mod_next ) {
- if ( strcasecmp( (*m)->mod_type, "modifytimestamp" ) == 0
- || strcasecmp( (*m)->mod_type, "modifiersname" ) == 0 ) {
- tmp = *m;
- *m = (*m)->mod_next;
- free( tmp->mod_type );
- if ( tmp->mod_bvalues != NULL ) {
- ber_bvecfree( tmp->mod_bvalues );
+ for( ; ml != NULL; ml = ml->ml_next ) {
+ Modifications *mod;
+ AttributeDescription *ad = NULL;
+
+ mod = (Modifications *)
+ ch_calloc( 1, sizeof(Modifications) );
+
+ /* copy the op */
+ mod->sml_op = ml->ml_op;
+
+ /* convert to attribute description */
+ rc = slap_str2ad( ml->ml_type, &mod->sml_desc, text );
+
+ if( rc != LDAP_SUCCESS ) {
+ slap_mods_free( mod );
+ return rc;
+ }
+
+ ad = mod->sml_desc;
+
+ if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
+ && !slap_ad_is_binary( ad ))
+ {
+ /* attribute requires binary transfer */
+ slap_mods_free( mod );
+ *text = "attribute requires ;binary transfer";
+ return LDAP_UNDEFINED_TYPE;
+ }
+
+ if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
+ && slap_ad_is_binary( ad ))
+ {
+ /* attribute requires binary transfer */
+ slap_mods_free( mod );
+ *text = "attribute disallows ;binary transfer";
+ return LDAP_UNDEFINED_TYPE;
+ }
+
+ if (!update && is_at_no_user_mod( ad->ad_type )) {
+ /* user modification disallowed */
+ slap_mods_free( mod );
+ *text = "no user modification allowed";
+ return LDAP_CONSTRAINT_VIOLATION;
+ }
+
+ /*
+ * check values
+ */
+ if( ml->ml_bvalues != NULL ) {
+ ber_len_t nvals;
+ slap_syntax_validate_func *validate =
+ ad->ad_type->sat_syntax->ssyn_validate;
+
+ if( !validate ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "modlist2mods: no validator for syntax %s\n",
+ ad->ad_type->sat_syntax->ssyn_oid, 0, 0 );
+ slap_mods_free( mod );
+ *text = "no validator for syntax";
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /*
+ * check that each value is valid per syntax
+ */
+ for( nvals = 0; ml->ml_bvalues[nvals]; nvals++ ) {
+ rc = validate( ad->ad_type->sat_syntax, ml->ml_bvalues[nvals] );
+
+ if( rc != 0 ) {
+ slap_mods_free( mod );
+ *text = "value contains invalid data";
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ /*
+ * a rough single value check... an additional check is needed
+ * to catch add of single value to existing single valued attribute
+ */
+ if( ( mod->sml_op == LDAP_MOD_ADD || mod->sml_op == LDAP_MOD_REPLACE )
+ && nvals > 1 && is_at_single_value( ad->ad_type ))
+ {
+ slap_mods_free( mod );
+ *text = "multiple values provided";
+ return LDAP_INVALID_SYNTAX;
}
- free( tmp );
}
+
+ mod->sml_bvalues = ml->ml_bvalues;
+ ml->ml_values = NULL;
+
+ *modtail = mod;
+ modtail = &mod->sml_next;
}
- if ( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
- bv.bv_val = "NULLDN";
- bv.bv_len = strlen( bv.bv_val );
+ return LDAP_SUCCESS;
+}
+
+int slap_mods_opattrs(
+ Operation *op,
+ Modifications **modtail,
+ const char **text )
+{
+ struct berval name, timestamp;
+ time_t now = slap_get_time();
+ char timebuf[22];
+ struct tm *ltm;
+ Modifications *mod;
+
+ int mop = op->o_tag == LDAP_REQ_ADD
+ ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
+
+ assert( modtail != NULL );
+ assert( *modtail == NULL );
+
+ ldap_pvt_thread_mutex_lock( &gmtime_mutex );
+ ltm = gmtime( &now );
+ strftime( timebuf, sizeof(timebuf), "%Y%m%d%H%M%SZ", ltm );
+ ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
+ timestamp.bv_val = timebuf;
+ timestamp.bv_len = strlen(timebuf);
+
+ if( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
+ name.bv_val = SLAPD_ANONYMOUS;
+ name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
} else {
- bv.bv_val = op->o_dn;
- bv.bv_len = strlen( bv.bv_val );
+ name.bv_val = op->o_dn;
+ name.bv_len = strlen( op->o_dn );
+ }
+
+ if( op->o_tag == LDAP_REQ_ADD ) {
+ mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
+ mod->sml_op = mop;
+ mod->sml_desc = ad_dup( slap_schema.si_ad_creatorsName );
+ mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
+ mod->sml_bvalues[0] = ber_bvdup( &name );
+ mod->sml_bvalues[1] = NULL;
+
+ *modtail = mod;
+ modtail = &mod->sml_next;
+
+ mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
+ mod->sml_op = mop;
+ mod->sml_desc = ad_dup( slap_schema.si_ad_createTimestamp );
+ mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
+ mod->sml_bvalues[0] = ber_bvdup( ×tamp );
+ mod->sml_bvalues[1] = NULL;
+ *modtail = mod;
+ modtail = &mod->sml_next;
+ }
+
+ mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
+ mod->sml_op = mop;
+ mod->sml_desc = ad_dup( slap_schema.si_ad_modifiersName );
+ mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
+ mod->sml_bvalues[0] = ber_bvdup( &name );
+ mod->sml_bvalues[1] = NULL;
+ *modtail = mod;
+ modtail = &mod->sml_next;
+
+ mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
+ mod->sml_op = mop;
+ mod->sml_desc = ad_dup( slap_schema.si_ad_modifyTimestamp );
+ mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
+ mod->sml_bvalues[0] = ber_bvdup( ×tamp );
+ mod->sml_bvalues[1] = NULL;
+ *modtail = mod;
+ modtail = &mod->sml_next;
+
+ return LDAP_SUCCESS;
+}
+
+
+void
+slap_mod_free(
+ Modification *mod,
+ int freeit
+)
+{
+ ad_free( mod->sm_desc, 1 );
+
+ if ( mod->sm_bvalues != NULL )
+ ber_bvecfree( mod->sm_bvalues );
+
+ if( freeit )
+ free( mod );
+}
+
+void
+slap_mods_free(
+ Modifications *ml
+)
+{
+ Modifications *next;
+
+ for ( ; ml != NULL; ml = next ) {
+ next = ml->sml_next;
+
+ slap_mod_free( &ml->sml_mod, 0 );
+ free( ml );
+ }
+}
+
+void
+slap_modlist_free(
+ LDAPModList *ml
+)
+{
+ LDAPModList *next;
+
+ for ( ; ml != NULL; ml = next ) {
+ next = ml->ml_next;
+
+ if (ml->ml_type)
+ free( ml->ml_type );
+
+ if ( ml->ml_bvalues != NULL )
+ ber_bvecfree( ml->ml_bvalues );
+
+ free( ml );
}
- tmp = (LDAPMod *) ch_calloc( 1, sizeof(LDAPMod) );
- tmp->mod_type = strdup( "modifiersname" );
- tmp->mod_op = LDAP_MOD_REPLACE;
- tmp->mod_bvalues = (struct berval **) ch_calloc( 1,
- 2 * sizeof(struct berval *) );
- tmp->mod_bvalues[0] = ber_bvdup( &bv );
- tmp->mod_next = *mods;
- *mods = tmp;
-
- pthread_mutex_lock( ¤ttime_mutex );
- ltm = localtime( ¤ttime );
- strftime( buf, sizeof(buf), "%y%m%d%H%M%SZ", ltm );
- pthread_mutex_unlock( ¤ttime_mutex );
- bv.bv_val = buf;
- bv.bv_len = strlen( bv.bv_val );
- tmp = (LDAPMod *) ch_calloc( 1, sizeof(LDAPMod) );
- tmp->mod_type = strdup( "modifytimestamp" );
- tmp->mod_op = LDAP_MOD_REPLACE;
- tmp->mod_bvalues = (struct berval **) ch_calloc( 1,
- 2 * sizeof(struct berval *) );
- tmp->mod_bvalues[0] = ber_bvdup( &bv );
- tmp->mod_next = *mods;
- *mods = tmp;
}