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-rw-r--r--libraries/libldap/extended.c419
1 files changed, 419 insertions, 0 deletions
diff --git a/libraries/libldap/extended.c b/libraries/libldap/extended.c
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--- /dev/null
+++ b/libraries/libldap/extended.c
@@ -0,0 +1,419 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/stdlib.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "ldap-int.h"
+#include "ldap_log.h"
+
+BerElement *
+ldap_build_extended_req(
+ LDAP *ld,
+ LDAP_CONST char *reqoid,
+ struct berval *reqdata,
+ LDAPControl **sctrls,
+ LDAPControl **cctrls,
+ ber_int_t *msgidp )
+{
+ BerElement *ber;
+ int rc;
+
+ /* create a message to send */
+ if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
+ return( NULL );
+ }
+
+ LDAP_NEXT_MSGID( ld, *msgidp );
+ if ( reqdata != NULL ) {
+ rc = ber_printf( ber, "{it{tstON}", /* '}' */
+ *msgidp, LDAP_REQ_EXTENDED,
+ LDAP_TAG_EXOP_REQ_OID, reqoid,
+ LDAP_TAG_EXOP_REQ_VALUE, reqdata );
+
+ } else {
+ rc = ber_printf( ber, "{it{tsN}", /* '}' */
+ *msgidp, LDAP_REQ_EXTENDED,
+ LDAP_TAG_EXOP_REQ_OID, reqoid );
+ }
+
+ if( rc == -1 ) {
+ ld->ld_errno = LDAP_ENCODING_ERROR;
+ ber_free( ber, 1 );
+ return( NULL );
+ }
+
+ /* Put Server Controls */
+ if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) {
+ ber_free( ber, 1 );
+ return( NULL );
+ }
+
+ if ( ber_printf( ber, /*{*/ "N}" ) == -1 ) {
+ ld->ld_errno = LDAP_ENCODING_ERROR;
+ ber_free( ber, 1 );
+ return( NULL );
+ }
+
+ return( ber );
+}
+
+/*
+ * LDAPv3 Extended Operation Request
+ * ExtendedRequest ::= [APPLICATION 23] SEQUENCE {
+ * requestName [0] LDAPOID,
+ * requestValue [1] OCTET STRING OPTIONAL
+ * }
+ *
+ * LDAPv3 Extended Operation Response
+ * ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
+ * COMPONENTS OF LDAPResult,
+ * responseName [10] LDAPOID OPTIONAL,
+ * response [11] OCTET STRING OPTIONAL
+ * }
+ *
+ * (Source RFC 4511)
+ */
+
+int
+ldap_extended_operation(
+ LDAP *ld,
+ LDAP_CONST char *reqoid,
+ struct berval *reqdata,
+ LDAPControl **sctrls,
+ LDAPControl **cctrls,
+ int *msgidp )
+{
+ BerElement *ber;
+ ber_int_t id;
+
+ Debug( LDAP_DEBUG_TRACE, "ldap_extended_operation\n", 0, 0, 0 );
+
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( reqoid != NULL && *reqoid != '\0' );
+ assert( msgidp != NULL );
+
+ /* must be version 3 (or greater) */
+ if ( ld->ld_version < LDAP_VERSION3 ) {
+ ld->ld_errno = LDAP_NOT_SUPPORTED;
+ return( ld->ld_errno );
+ }
+
+ ber = ldap_build_extended_req( ld, reqoid, reqdata,
+ sctrls, cctrls, &id );
+ if ( !ber )
+ return( ld->ld_errno );
+
+ /* send the message */
+ *msgidp = ldap_send_initial_request( ld, LDAP_REQ_EXTENDED, NULL, ber, id );
+
+ return( *msgidp < 0 ? ld->ld_errno : LDAP_SUCCESS );
+}
+
+int
+ldap_extended_operation_s(
+ LDAP *ld,
+ LDAP_CONST char *reqoid,
+ struct berval *reqdata,
+ LDAPControl **sctrls,
+ LDAPControl **cctrls,
+ char **retoidp,
+ struct berval **retdatap )
+{
+ int rc;
+ int msgid;
+ LDAPMessage *res;
+
+ Debug( LDAP_DEBUG_TRACE, "ldap_extended_operation_s\n", 0, 0, 0 );
+
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( reqoid != NULL && *reqoid != '\0' );
+
+ rc = ldap_extended_operation( ld, reqoid, reqdata,
+ sctrls, cctrls, &msgid );
+
+ if ( rc != LDAP_SUCCESS ) {
+ return( rc );
+ }
+
+ if ( ldap_result( ld, msgid, LDAP_MSG_ALL, (struct timeval *) NULL, &res ) == -1 || !res ) {
+ return( ld->ld_errno );
+ }
+
+ if ( retoidp != NULL ) *retoidp = NULL;
+ if ( retdatap != NULL ) *retdatap = NULL;
+
+ rc = ldap_parse_extended_result( ld, res, retoidp, retdatap, 0 );
+
+ if( rc != LDAP_SUCCESS ) {
+ ldap_msgfree( res );
+ return rc;
+ }
+
+ return( ldap_result2error( ld, res, 1 ) );
+}
+
+/* Parse an extended result */
+int
+ldap_parse_extended_result (
+ LDAP *ld,
+ LDAPMessage *res,
+ char **retoidp,
+ struct berval **retdatap,
+ int freeit )
+{
+ BerElement *ber;
+ ber_tag_t rc;
+ ber_tag_t tag;
+ ber_len_t len;
+ struct berval *resdata;
+ ber_int_t errcode;
+ char *resoid;
+
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( res != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, "ldap_parse_extended_result\n", 0, 0, 0 );
+
+ if( ld->ld_version < LDAP_VERSION3 ) {
+ ld->ld_errno = LDAP_NOT_SUPPORTED;
+ return ld->ld_errno;
+ }
+
+ if( res->lm_msgtype != LDAP_RES_EXTENDED ) {
+ ld->ld_errno = LDAP_PARAM_ERROR;
+ return ld->ld_errno;
+ }
+
+ if( retoidp != NULL ) *retoidp = NULL;
+ if( retdatap != NULL ) *retdatap = NULL;
+
+ if ( ld->ld_error ) {
+ LDAP_FREE( ld->ld_error );
+ ld->ld_error = NULL;
+ }
+
+ if ( ld->ld_matched ) {
+ LDAP_FREE( ld->ld_matched );
+ ld->ld_matched = NULL;
+ }
+
+ ber = ber_dup( res->lm_ber );
+
+ if ( ber == NULL ) {
+ ld->ld_errno = LDAP_NO_MEMORY;
+ return ld->ld_errno;
+ }
+
+ rc = ber_scanf( ber, "{eAA" /*}*/, &errcode,
+ &ld->ld_matched, &ld->ld_error );
+
+ if( rc == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ return ld->ld_errno;
+ }
+
+ resoid = NULL;
+ resdata = NULL;
+
+ tag = ber_peek_tag( ber, &len );
+
+ if( tag == LDAP_TAG_REFERRAL ) {
+ /* skip over referral */
+ if( ber_scanf( ber, "x" ) == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ return ld->ld_errno;
+ }
+
+ tag = ber_peek_tag( ber, &len );
+ }
+
+ if( tag == LDAP_TAG_EXOP_RES_OID ) {
+ /* we have a resoid */
+ if( ber_scanf( ber, "a", &resoid ) == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ return ld->ld_errno;
+ }
+
+ assert( resoid[ 0 ] != '\0' );
+
+ tag = ber_peek_tag( ber, &len );
+ }
+
+ if( tag == LDAP_TAG_EXOP_RES_VALUE ) {
+ /* we have a resdata */
+ if( ber_scanf( ber, "O", &resdata ) == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ if( resoid != NULL ) LDAP_FREE( resoid );
+ return ld->ld_errno;
+ }
+ }
+
+ ber_free( ber, 0 );
+
+ if( retoidp != NULL ) {
+ *retoidp = resoid;
+ } else {
+ LDAP_FREE( resoid );
+ }
+
+ if( retdatap != NULL ) {
+ *retdatap = resdata;
+ } else {
+ ber_bvfree( resdata );
+ }
+
+ ld->ld_errno = errcode;
+
+ if( freeit ) {
+ ldap_msgfree( res );
+ }
+
+ return LDAP_SUCCESS;
+}
+
+
+/* Parse an extended partial */
+int
+ldap_parse_intermediate (
+ LDAP *ld,
+ LDAPMessage *res,
+ char **retoidp,
+ struct berval **retdatap,
+ LDAPControl ***serverctrls,
+ int freeit )
+{
+ BerElement *ber;
+ ber_tag_t tag;
+ ber_len_t len;
+ struct berval *resdata;
+ char *resoid;
+
+ assert( ld != NULL );
+ assert( LDAP_VALID( ld ) );
+ assert( res != NULL );
+
+ Debug( LDAP_DEBUG_TRACE, "ldap_parse_intermediate\n", 0, 0, 0 );
+
+ if( ld->ld_version < LDAP_VERSION3 ) {
+ ld->ld_errno = LDAP_NOT_SUPPORTED;
+ return ld->ld_errno;
+ }
+
+ if( res->lm_msgtype != LDAP_RES_INTERMEDIATE ) {
+ ld->ld_errno = LDAP_PARAM_ERROR;
+ return ld->ld_errno;
+ }
+
+ if( retoidp != NULL ) *retoidp = NULL;
+ if( retdatap != NULL ) *retdatap = NULL;
+ if( serverctrls != NULL ) *serverctrls = NULL;
+
+ ber = ber_dup( res->lm_ber );
+
+ if ( ber == NULL ) {
+ ld->ld_errno = LDAP_NO_MEMORY;
+ return ld->ld_errno;
+ }
+
+ tag = ber_scanf( ber, "{" /*}*/ );
+
+ if( tag == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ return ld->ld_errno;
+ }
+
+ resoid = NULL;
+ resdata = NULL;
+
+ tag = ber_peek_tag( ber, &len );
+
+ /*
+ * NOTE: accept intermediate and extended response tag values
+ * as older versions of slapd(8) incorrectly used extended
+ * response tags.
+ * Should be removed when 2.2 is moved to Historic.
+ */
+ if( tag == LDAP_TAG_IM_RES_OID || tag == LDAP_TAG_EXOP_RES_OID ) {
+ /* we have a resoid */
+ if( ber_scanf( ber, "a", &resoid ) == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ return ld->ld_errno;
+ }
+
+ assert( resoid[ 0 ] != '\0' );
+
+ tag = ber_peek_tag( ber, &len );
+ }
+
+ if( tag == LDAP_TAG_IM_RES_VALUE || tag == LDAP_TAG_EXOP_RES_VALUE ) {
+ /* we have a resdata */
+ if( ber_scanf( ber, "O", &resdata ) == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ ber_free( ber, 0 );
+ if( resoid != NULL ) LDAP_FREE( resoid );
+ return ld->ld_errno;
+ }
+ }
+
+ if ( serverctrls == NULL ) {
+ ld->ld_errno = LDAP_SUCCESS;
+ goto free_and_return;
+ }
+
+ if ( ber_scanf( ber, /*{*/ "}" ) == LBER_ERROR ) {
+ ld->ld_errno = LDAP_DECODING_ERROR;
+ goto free_and_return;
+ }
+
+ ld->ld_errno = ldap_pvt_get_controls( ber, serverctrls );
+
+free_and_return:
+ ber_free( ber, 0 );
+
+ if( retoidp != NULL ) {
+ *retoidp = resoid;
+ } else {
+ LDAP_FREE( resoid );
+ }
+
+ if( retdatap != NULL ) {
+ *retdatap = resdata;
+ } else {
+ ber_bvfree( resdata );
+ }
+
+ if( freeit ) {
+ ldap_msgfree( res );
+ }
+
+ return ld->ld_errno;
+}
+