mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
278 lines
7.4 KiB
C
278 lines
7.4 KiB
C
/*
|
|
* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
/* Adapted for inclusion into OpenLDAP by Kurt D. Zeilenga */
|
|
/*---
|
|
* Copyright (C) 1999, 2000 Novell, Inc. All Rights Reserved.
|
|
*
|
|
* THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND
|
|
* TREATIES. USE, MODIFICATION, AND REDISTRIBUTION OF THIS WORK IS SUBJECT
|
|
* TO VERSION 2.0.1 OF THE OPENLDAP PUBLIC LICENSE, A COPY OF WHICH IS
|
|
* AVAILABLE AT HTTP://WWW.OPENLDAP.ORG/LICENSE.HTML OR IN THE FILE "LICENSE"
|
|
* IN THE TOP-LEVEL DIRECTORY OF THE DISTRIBUTION. ANY USE OR EXPLOITATION
|
|
* OF THIS WORK OTHER THAN AS AUTHORIZED IN VERSION 2.0.1 OF THE OPENLDAP
|
|
* PUBLIC LICENSE, OR OTHER PRIOR WRITTEN CONSENT FROM NOVELL, COULD SUBJECT
|
|
* THE PERPETRATOR TO CRIMINAL AND CIVIL LIABILITY.
|
|
*---*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
#include <ac/stdlib.h>
|
|
#include <ac/string.h>
|
|
#include <ac/time.h>
|
|
|
|
#include "ldap-int.h"
|
|
|
|
#define LDAP_VLVBYINDEX_IDENTIFIER 0xa0L
|
|
#define LDAP_VLVBYVALUE_IDENTIFIER 0x81L
|
|
#define LDAP_VLVCONTEXT_IDENTIFIER 0x04L
|
|
|
|
|
|
/*---
|
|
ldap_create_vlv_control
|
|
|
|
Create and encode the Virtual List View control.
|
|
|
|
ld (IN) An LDAP session handle, as obtained from a call to
|
|
ldap_init().
|
|
|
|
vlvinfop (IN) The address of an LDAPVLVInfo structure whose contents
|
|
are used to construct the value of the control
|
|
that is created.
|
|
|
|
ctrlp (OUT) A result parameter that will be assigned the address
|
|
of an LDAPControl structure that contains the
|
|
VirtualListViewRequest control created by this function.
|
|
The memory occupied by the LDAPControl structure
|
|
SHOULD be freed when it is no longer in use by
|
|
calling ldap_control_free().
|
|
|
|
|
|
Ber encoding
|
|
|
|
VirtualListViewRequest ::= SEQUENCE {
|
|
beforeCount INTEGER (0 .. maxInt),
|
|
afterCount INTEGER (0 .. maxInt),
|
|
CHOICE {
|
|
byoffset [0] SEQUENCE, {
|
|
offset INTEGER (0 .. maxInt),
|
|
contentCount INTEGER (0 .. maxInt) }
|
|
[1] greaterThanOrEqual assertionValue }
|
|
contextID OCTET STRING OPTIONAL }
|
|
|
|
|
|
Note: The first time the VLV control is created, the ldvlv_context
|
|
field of the LDAPVLVInfo structure should be set to NULL.
|
|
The context obtained from calling ldap_parse_vlv_control()
|
|
should be used as the context in the next ldap_create_vlv_control
|
|
call.
|
|
|
|
---*/
|
|
|
|
int
|
|
ldap_create_vlv_control( LDAP *ld,
|
|
LDAPVLVInfo *vlvinfop,
|
|
LDAPControl **ctrlp )
|
|
{
|
|
ber_tag_t tag;
|
|
BerElement *ber;
|
|
|
|
assert( ld != NULL );
|
|
assert( LDAP_VALID( ld ) );
|
|
assert( vlvinfop != NULL );
|
|
assert( ctrlp != NULL );
|
|
|
|
if ((ber = ldap_alloc_ber_with_options(ld)) == NULL) {
|
|
ld->ld_errno = LDAP_NO_MEMORY;
|
|
return(LDAP_NO_MEMORY);
|
|
}
|
|
|
|
tag = ber_printf(ber, "{ii" /*}*/,
|
|
vlvinfop->ldvlv_before_count,
|
|
vlvinfop->ldvlv_after_count);
|
|
if( tag == LBER_ERROR ) goto exit;
|
|
|
|
if (vlvinfop->ldvlv_attrvalue == NULL) {
|
|
tag = ber_printf(ber, "t{iiN}",
|
|
LDAP_VLVBYINDEX_IDENTIFIER,
|
|
vlvinfop->ldvlv_offset,
|
|
vlvinfop->ldvlv_count);
|
|
if( tag == LBER_ERROR ) goto exit;
|
|
|
|
} else {
|
|
tag = ber_printf(ber, "tO",
|
|
LDAP_VLVBYVALUE_IDENTIFIER,
|
|
vlvinfop->ldvlv_attrvalue);
|
|
if( tag == LBER_ERROR ) goto exit;
|
|
}
|
|
|
|
if (vlvinfop->ldvlv_context) {
|
|
tag = ber_printf(ber, "tO",
|
|
LDAP_VLVCONTEXT_IDENTIFIER,
|
|
vlvinfop->ldvlv_context);
|
|
if( tag == LBER_ERROR ) goto exit;
|
|
}
|
|
|
|
tag = ber_printf(ber, /*{*/ "N}");
|
|
if( tag == LBER_ERROR ) goto exit;
|
|
|
|
ld->ld_errno = ldap_create_control( LDAP_CONTROL_VLVREQUEST,
|
|
ber, 1, ctrlp);
|
|
|
|
ber_free(ber, 1);
|
|
return(ld->ld_errno);
|
|
|
|
exit:
|
|
ber_free(ber, 1);
|
|
ld->ld_errno = LDAP_ENCODING_ERROR;
|
|
return(ld->ld_errno);
|
|
}
|
|
|
|
|
|
/*---
|
|
ldap_parse_vlv_control
|
|
|
|
Decode the Virtual List View control return information.
|
|
|
|
ld (IN) An LDAP session handle.
|
|
|
|
ctrls (IN) The address of a NULL-terminated array of
|
|
LDAPControl structures, typically obtained
|
|
by a call to ldap_parse_result().
|
|
|
|
target_posp (OUT) This result parameter is filled in with the list
|
|
index of the target entry. If this parameter is
|
|
NULL, the target position is not returned.
|
|
|
|
list_countp (OUT) This result parameter is filled in with the server's
|
|
estimate of the size of the list. If this parameter
|
|
is NULL, the size is not returned.
|
|
|
|
contextp (OUT) This result parameter is filled in with the address
|
|
of a struct berval that contains the server-
|
|
generated context identifier if one was returned by
|
|
the server. If the server did not return a context
|
|
identifier, this parameter will be set to NULL, even
|
|
if an error occured.
|
|
The returned context SHOULD be used in the next call
|
|
to create a VLV sort control. The struct berval
|
|
returned SHOULD be disposed of by calling ber_bvfree()
|
|
when it is no longer needed. If NULL is passed for
|
|
contextp, the context identifier is not returned.
|
|
|
|
errcodep (OUT) This result parameter is filled in with the VLV
|
|
result code. If this parameter is NULL, the result
|
|
code is not returned.
|
|
|
|
|
|
Ber encoding
|
|
|
|
VirtualListViewResponse ::= SEQUENCE {
|
|
targetPosition INTEGER (0 .. maxInt),
|
|
contentCount INTEGER (0 .. maxInt),
|
|
virtualListViewResult ENUMERATED {
|
|
success (0),
|
|
operatonsError (1),
|
|
unwillingToPerform (53),
|
|
insufficientAccessRights (50),
|
|
busy (51),
|
|
timeLimitExceeded (3),
|
|
adminLimitExceeded (11),
|
|
sortControlMissing (60),
|
|
offsetRangeError (61),
|
|
other (80) },
|
|
contextID OCTET STRING OPTIONAL }
|
|
|
|
---*/
|
|
|
|
int
|
|
ldap_parse_vlv_control(
|
|
LDAP *ld,
|
|
LDAPControl **ctrls,
|
|
unsigned long *target_posp,
|
|
unsigned long *list_countp,
|
|
struct berval **contextp,
|
|
int *errcodep )
|
|
{
|
|
BerElement *ber;
|
|
LDAPControl *pControl;
|
|
int i;
|
|
unsigned long pos, count, err;
|
|
ber_tag_t tag, berTag;
|
|
ber_len_t berLen;
|
|
|
|
assert( ld != NULL );
|
|
assert( LDAP_VALID( ld ) );
|
|
|
|
if (contextp) {
|
|
*contextp = NULL; /* Make sure we return a NULL if error occurs. */
|
|
}
|
|
|
|
if (ctrls == NULL) {
|
|
ld->ld_errno = LDAP_CONTROL_NOT_FOUND;
|
|
return(ld->ld_errno);
|
|
}
|
|
|
|
/* Search the list of control responses for a VLV control. */
|
|
for (i=0; ctrls[i]; i++) {
|
|
pControl = ctrls[i];
|
|
if (!strcmp(LDAP_CONTROL_VLVRESPONSE, pControl->ldctl_oid))
|
|
goto foundVLVControl;
|
|
}
|
|
|
|
/* No sort control was found. */
|
|
ld->ld_errno = LDAP_CONTROL_NOT_FOUND;
|
|
return(ld->ld_errno);
|
|
|
|
foundVLVControl:
|
|
/* Create a BerElement from the berval returned in the control. */
|
|
ber = ber_init(&pControl->ldctl_value);
|
|
|
|
if (ber == NULL) {
|
|
ld->ld_errno = LDAP_NO_MEMORY;
|
|
return(ld->ld_errno);
|
|
}
|
|
|
|
/* Extract the data returned in the control. */
|
|
tag = ber_scanf(ber, "{iie" /*}*/, &pos, &count, &err);
|
|
|
|
if( tag == LBER_ERROR) {
|
|
ber_free(ber, 1);
|
|
ld->ld_errno = LDAP_DECODING_ERROR;
|
|
return(ld->ld_errno);
|
|
}
|
|
|
|
|
|
/* Since the context is the last item encoded, if caller doesn't want
|
|
it returned, don't decode it. */
|
|
if (contextp) {
|
|
if (LDAP_VLVCONTEXT_IDENTIFIER == ber_peek_tag(ber, &berLen)) {
|
|
tag = ber_scanf(ber, "tO", &berTag, contextp);
|
|
|
|
if( tag == LBER_ERROR) {
|
|
ber_free(ber, 1);
|
|
ld->ld_errno = LDAP_DECODING_ERROR;
|
|
return(ld->ld_errno);
|
|
}
|
|
}
|
|
}
|
|
|
|
ber_free(ber, 1);
|
|
|
|
/* Return data to the caller for items that were requested. */
|
|
if (target_posp) {
|
|
*target_posp = pos;
|
|
}
|
|
if (list_countp) {
|
|
*list_countp = count;
|
|
}
|
|
if (errcodep) {
|
|
*errcodep = err;
|
|
}
|
|
|
|
ld->ld_errno = LDAP_SUCCESS;
|
|
return(ld->ld_errno);
|
|
}
|