mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
390 lines
8.8 KiB
C
390 lines
8.8 KiB
C
/* $OpenLDAP$ */
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/*
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* Copyright 1999-2002 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted only
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* as authorized by the OpenLDAP Public License. A copy of this
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* license is available at http://www.OpenLDAP.org/license.html or
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* in file LICENSE in the top-level directory of the distribution.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "../../libraries/liblber/lber-int.h"
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#define SLAP_CTRL_ABANDON 0x0001
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#define SLAP_CTRL_ADD 0x2002
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#define SLAP_CTRL_BIND 0x0004
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#define SLAP_CTRL_COMPARE 0x1008
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#define SLAP_CTRL_DELETE 0x2010
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#define SLAP_CTRL_MODIFY 0x2020
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#define SLAP_CTRL_RENAME 0x2040
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#define SLAP_CTRL_SEARCH 0x1080
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#define SLAP_CTRL_UNBIND 0x0100
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#define SLAP_CTRL_INTROGATE (SLAP_CTRL_COMPARE|SLAP_CTRL_SEARCH)
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#define SLAP_CTRL_UPDATE \
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(SLAP_CTRL_ADD|SLAP_CTRL_DELETE|SLAP_CTRL_MODIFY|SLAP_CTRL_RENAME)
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#define SLAP_CTRL_ACCESS (SLAP_CTRL_INTROGATE|SLAP_CTRL_UPDATE)
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typedef int (SLAP_CTRL_PARSE_FN) LDAP_P((
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Connection *conn,
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Operation *op,
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LDAPControl *ctrl,
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const char **text ));
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static SLAP_CTRL_PARSE_FN parseManageDSAit;
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static SLAP_CTRL_PARSE_FN parseSubentries;
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static struct slap_control {
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char *sc_oid;
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int sc_ops_mask;
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char **sc_extendedops;
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SLAP_CTRL_PARSE_FN *sc_parse;
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} supportedControls[] = {
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{ LDAP_CONTROL_MANAGEDSAIT,
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SLAP_CTRL_ACCESS, NULL,
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parseManageDSAit },
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{ LDAP_CONTROL_SUBENTRIES,
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SLAP_CTRL_SEARCH, NULL,
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parseSubentries },
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{ NULL }
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};
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char *
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get_supported_ctrl(int index)
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{
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return supportedControls[index].sc_oid;
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}
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static struct slap_control *
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find_ctrl( const char *oid )
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{
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int i;
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for( i=0; supportedControls[i].sc_oid; i++ ) {
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if( strcmp( oid, supportedControls[i].sc_oid ) == 0 ) {
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return &supportedControls[i];
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}
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}
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return NULL;
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}
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int get_ctrls(
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Connection *conn,
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Operation *op,
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int sendres )
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{
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int nctrls = 0;
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ber_tag_t tag;
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ber_len_t len;
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char *opaque;
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BerElement *ber = op->o_ber;
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LDAPControl ***ctrls = &op->o_ctrls;
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struct slap_control *c;
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int rc = LDAP_SUCCESS;
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const char *errmsg = NULL;
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len = ber_pvt_ber_remaining(ber);
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if( len == 0) {
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/* no controls */
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rc = LDAP_SUCCESS;
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return rc;
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}
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if(( tag = ber_peek_tag( ber, &len )) != LDAP_TAG_CONTROLS ) {
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if( tag == LBER_ERROR ) {
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rc = SLAPD_DISCONNECT;
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errmsg = "unexpected data in PDU";
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}
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goto return_results;
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}
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#ifdef NEW_LOGGING
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LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
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"get_ctrls: conn %d\n", conn->c_connid ));
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#else
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Debug( LDAP_DEBUG_TRACE, "=> get_ctrls\n", 0, 0, 0 );
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#endif
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if( op->o_protocol < LDAP_VERSION3 ) {
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rc = SLAPD_DISCONNECT;
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errmsg = "controls require LDAPv3";
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goto return_results;
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}
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/* set through each element */
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*ctrls = ch_malloc( 1 * sizeof(LDAPControl *) );
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#if 0
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if( *ctrls == NULL ) {
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rc = LDAP_NO_MEMORY;
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errmsg = "no memory";
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goto return_results;
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}
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#endif
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*ctrls[nctrls] = NULL;
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for( tag = ber_first_element( ber, &len, &opaque );
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tag != LBER_ERROR;
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tag = ber_next_element( ber, &len, opaque ) )
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{
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LDAPControl *tctrl;
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LDAPControl **tctrls;
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tctrl = ch_calloc( 1, sizeof(LDAPControl) );
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tctrl->ldctl_oid = NULL;
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tctrl->ldctl_value.bv_val = NULL;
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/* allocate pointer space for current controls (nctrls)
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* + this control + extra NULL
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*/
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tctrls = (tctrl == NULL) ? NULL :
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ch_realloc(*ctrls, (nctrls+2) * sizeof(LDAPControl *));
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#if 0
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if( tctrls == NULL ) {
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/* one of the above allocation failed */
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if( tctrl != NULL ) {
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ch_free( tctrl );
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}
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ldap_controls_free(*ctrls);
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*ctrls = NULL;
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rc = LDAP_NO_MEMORY;
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errmsg = "no memory";
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goto return_results;
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}
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#endif
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tctrls[nctrls++] = tctrl;
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tctrls[nctrls] = NULL;
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tag = ber_scanf( ber, "{a" /*}*/, &tctrl->ldctl_oid );
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if( tag == LBER_ERROR ) {
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#ifdef NEW_LOGGING
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LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
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"get_ctrls: conn %d get OID failed.\n",
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conn->c_connid ));
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#else
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Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get oid failed.\n",
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0, 0, 0 );
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#endif
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*ctrls = NULL;
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ldap_controls_free( tctrls );
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rc = SLAPD_DISCONNECT;
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errmsg = "decoding controls error";
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goto return_results;
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}
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tag = ber_peek_tag( ber, &len );
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if( tag == LBER_BOOLEAN ) {
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ber_int_t crit;
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tag = ber_scanf( ber, "b", &crit );
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if( tag == LBER_ERROR ) {
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#ifdef NEW_LOGGING
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LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
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"get_ctrls: conn %d get crit failed.\n",
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conn->c_connid ));
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#else
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Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get crit failed.\n",
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0, 0, 0 );
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#endif
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*ctrls = NULL;
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ldap_controls_free( tctrls );
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rc = SLAPD_DISCONNECT;
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errmsg = "decoding controls error";
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goto return_results;
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}
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tctrl->ldctl_iscritical = (crit != 0);
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tag = ber_peek_tag( ber, &len );
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}
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#ifdef NEW_LOGGING
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LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
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"get_ctrls: conn %d oid=\"%s\" (%scritical)\n",
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conn->c_connid, tctrl->ldctl_oid,
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tctrl->ldctl_iscritical ? "" : "non" ));
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#else
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Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: oid=\"%s\" (%scritical)\n",
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tctrl->ldctl_oid,
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tctrl->ldctl_iscritical ? "" : "non",
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0 );
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#endif
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if( tag == LBER_OCTETSTRING ) {
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tag = ber_scanf( ber, "o", &tctrl->ldctl_value );
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if( tag == LBER_ERROR ) {
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#ifdef NEW_LOGGING
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LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
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"get_ctrls: conn %d get value failed.\n", conn->c_connid ));
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#else
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Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get value failed.\n",
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0, 0, 0 );
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#endif
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*ctrls = NULL;
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ldap_controls_free( tctrls );
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rc = SLAPD_DISCONNECT;
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errmsg = "decoding controls error";
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goto return_results;
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}
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}
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c = find_ctrl( tctrl->ldctl_oid );
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if( c != NULL ) {
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/* recongized control */
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int tagmask = -1;
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switch( op->o_tag ) {
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case LDAP_REQ_ADD:
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tagmask = SLAP_CTRL_ADD;
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break;
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case LDAP_REQ_BIND:
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tagmask = SLAP_CTRL_BIND;
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break;
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case LDAP_REQ_COMPARE:
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tagmask = SLAP_CTRL_COMPARE;
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break;
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case LDAP_REQ_DELETE:
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tagmask = SLAP_CTRL_DELETE;
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break;
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case LDAP_REQ_MODIFY:
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tagmask = SLAP_CTRL_MODIFY;
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break;
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case LDAP_REQ_RENAME:
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tagmask = SLAP_CTRL_RENAME;
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break;
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case LDAP_REQ_SEARCH:
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tagmask = SLAP_CTRL_SEARCH;
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break;
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case LDAP_REQ_UNBIND:
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tagmask = SLAP_CTRL_UNBIND;
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break;
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case LDAP_REQ_EXTENDED:
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/* FIXME: check list of extended operations */
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tagmask = -1;
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break;
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default:
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rc = LDAP_OTHER;
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errmsg = "controls internal error";
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goto return_results;
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}
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if (( c->sc_ops_mask & tagmask ) == tagmask ) {
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/* available extension */
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if( !c->sc_parse ) {
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rc = LDAP_OTHER;
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errmsg = "not yet implemented";
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goto return_results;
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}
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rc = c->sc_parse( conn, op, tctrl, &errmsg );
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if( rc != LDAP_SUCCESS ) goto return_results;
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} else if( tctrl->ldctl_iscritical ) {
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/* unavailable CRITICAL control */
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rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
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errmsg = "critical extension is unavailable";
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goto return_results;
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}
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} else if( tctrl->ldctl_iscritical ) {
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/* unrecongized CRITICAL control */
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rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
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errmsg = "critical extension is not recongized";
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goto return_results;
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}
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*ctrls = tctrls;
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}
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return_results:
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#ifdef NEW_LOGGING
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LDAP_LOG(( "operation", LDAP_LEVEL_RESULTS,
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"get_ctrls: conn %d %d %d %s\n",
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conn->c_connid, nctrls, rc, errmsg ? errmsg : "" ));
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#else
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Debug( LDAP_DEBUG_TRACE, "<= get_ctrls: %d %d %s\n",
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nctrls, rc, errmsg ? errmsg : "");
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#endif
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if( sendres && rc != LDAP_SUCCESS ) {
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if( rc == SLAPD_DISCONNECT ) {
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send_ldap_disconnect( conn, op, LDAP_PROTOCOL_ERROR, errmsg );
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} else {
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send_ldap_result( conn, op, rc,
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NULL, errmsg, NULL, NULL );
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}
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}
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return rc;
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}
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static int parseManageDSAit (
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Connection *conn,
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Operation *op,
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LDAPControl *ctrl,
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const char **text )
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{
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if ( op->o_managedsait != SLAP_NO_CONTROL ) {
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*text = "manageDSAit control specified multiple times";
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return LDAP_PROTOCOL_ERROR;
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}
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if ( ctrl->ldctl_value.bv_len ) {
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*text = "manageDSAit control value not empty";
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return LDAP_PROTOCOL_ERROR;
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}
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op->o_managedsait = ctrl->ldctl_iscritical
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? SLAP_CRITICAL_CONTROL
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: SLAP_NONCRITICAL_CONTROL;
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return LDAP_SUCCESS;
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}
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static int parseSubentries (
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Connection *conn,
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Operation *op,
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LDAPControl *ctrl,
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const char **text )
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{
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if ( op->o_subentries != SLAP_NO_CONTROL ) {
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*text = "subentries control specified multiple times";
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return LDAP_PROTOCOL_ERROR;
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}
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/* FIXME: should use BER library */
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if( ( ctrl->ldctl_value.bv_len != 3 )
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&& ( ctrl->ldctl_value.bv_val[0] != 0x01 )
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&& ( ctrl->ldctl_value.bv_val[1] != 0x01 ))
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{
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*text = "subentries control value encoding is bogus";
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return LDAP_PROTOCOL_ERROR;
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}
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op->o_subentries = ctrl->ldctl_iscritical
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? SLAP_CRITICAL_CONTROL
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: SLAP_NONCRITICAL_CONTROL;
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op->o_subentries_visibility = (ctrl->ldctl_value.bv_val[2] != 0x00);
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return LDAP_SUCCESS;
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}
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