mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
530 lines
12 KiB
C
530 lines
12 KiB
C
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1999-2002 The OpenLDAP Foundation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted only
|
|
* as authorized by the OpenLDAP Public License. A copy of this
|
|
* license is available at http://www.OpenLDAP.org/license.html or
|
|
* in file LICENSE in the top-level directory of the distribution.
|
|
*/
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <ac/string.h>
|
|
#include <ac/socket.h>
|
|
|
|
#include "slap.h"
|
|
|
|
#include "../../libraries/liblber/lber-int.h"
|
|
|
|
#define SLAP_CTRL_FRONTEND 0x80000000U
|
|
|
|
#define SLAP_CTRL_OPFLAGS 0x0000FFFFU
|
|
#define SLAP_CTRL_ABANDON 0x00000001U
|
|
#define SLAP_CTRL_ADD 0x00002002U
|
|
#define SLAP_CTRL_BIND 0x00000004U
|
|
#define SLAP_CTRL_COMPARE 0x00001008U
|
|
#define SLAP_CTRL_DELETE 0x00002010U
|
|
#define SLAP_CTRL_MODIFY 0x00002020U
|
|
#define SLAP_CTRL_RENAME 0x00002040U
|
|
#define SLAP_CTRL_SEARCH 0x00001080U
|
|
#define SLAP_CTRL_UNBIND 0x00000100U
|
|
|
|
#define SLAP_CTRL_INTROGATE (SLAP_CTRL_COMPARE|SLAP_CTRL_SEARCH)
|
|
#define SLAP_CTRL_UPDATE \
|
|
(SLAP_CTRL_ADD|SLAP_CTRL_DELETE|SLAP_CTRL_MODIFY|SLAP_CTRL_RENAME)
|
|
#define SLAP_CTRL_ACCESS (SLAP_CTRL_INTROGATE|SLAP_CTRL_UPDATE)
|
|
|
|
typedef int (SLAP_CTRL_PARSE_FN) LDAP_P((
|
|
Connection *conn,
|
|
Operation *op,
|
|
LDAPControl *ctrl,
|
|
const char **text ));
|
|
|
|
static SLAP_CTRL_PARSE_FN parseManageDSAit;
|
|
static SLAP_CTRL_PARSE_FN parseSubentries;
|
|
static SLAP_CTRL_PARSE_FN parseNoOp;
|
|
static SLAP_CTRL_PARSE_FN parsePagedResults;
|
|
|
|
static struct slap_control {
|
|
char *sc_oid;
|
|
slap_mask_t sc_mask;
|
|
char **sc_extendedops;
|
|
SLAP_CTRL_PARSE_FN *sc_parse;
|
|
|
|
} supportedControls[] = {
|
|
{ LDAP_CONTROL_MANAGEDSAIT,
|
|
SLAP_CTRL_ACCESS, NULL,
|
|
parseManageDSAit },
|
|
#ifdef LDAP_CONTROL_SUBENTRIES
|
|
{ LDAP_CONTROL_SUBENTRIES,
|
|
SLAP_CTRL_SEARCH, NULL,
|
|
parseSubentries },
|
|
#endif
|
|
#ifdef LDAP_CONTROL_NOOP
|
|
{ LDAP_CONTROL_NOOP,
|
|
SLAP_CTRL_UPDATE, NULL,
|
|
parseNoOp },
|
|
#endif
|
|
#ifdef LDAP_CONTROL_PAGEDRESULTS_REQUEST
|
|
{ LDAP_CONTROL_PAGEDRESULTS_REQUEST,
|
|
SLAP_CTRL_SEARCH, NULL,
|
|
parsePagedResults },
|
|
#endif
|
|
{ NULL }
|
|
};
|
|
|
|
char *
|
|
get_supported_ctrl(int index)
|
|
{
|
|
return supportedControls[index].sc_oid;
|
|
}
|
|
|
|
static struct slap_control *
|
|
find_ctrl( const char *oid )
|
|
{
|
|
int i;
|
|
for( i=0; supportedControls[i].sc_oid; i++ ) {
|
|
if( strcmp( oid, supportedControls[i].sc_oid ) == 0 ) {
|
|
return &supportedControls[i];
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int get_ctrls(
|
|
Connection *conn,
|
|
Operation *op,
|
|
int sendres )
|
|
{
|
|
int nctrls = 0;
|
|
ber_tag_t tag;
|
|
ber_len_t len;
|
|
char *opaque;
|
|
BerElement *ber = op->o_ber;
|
|
struct slap_control *sc;
|
|
int rc = LDAP_SUCCESS;
|
|
const char *errmsg = NULL;
|
|
|
|
len = ber_pvt_ber_remaining(ber);
|
|
|
|
if( len == 0) {
|
|
/* no controls */
|
|
rc = LDAP_SUCCESS;
|
|
return rc;
|
|
}
|
|
|
|
if(( tag = ber_peek_tag( ber, &len )) != LDAP_TAG_CONTROLS ) {
|
|
if( tag == LBER_ERROR ) {
|
|
rc = SLAPD_DISCONNECT;
|
|
errmsg = "unexpected data in PDU";
|
|
}
|
|
|
|
goto return_results;
|
|
}
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
|
|
"get_ctrls: conn %lu\n", conn->c_connid ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "=> get_ctrls\n", 0, 0, 0 );
|
|
#endif
|
|
if( op->o_protocol < LDAP_VERSION3 ) {
|
|
rc = SLAPD_DISCONNECT;
|
|
errmsg = "controls require LDAPv3";
|
|
goto return_results;
|
|
}
|
|
|
|
/* one for first control, one for termination */
|
|
op->o_ctrls = ch_malloc( 2 * sizeof(LDAPControl *) );
|
|
|
|
#if 0
|
|
if( op->ctrls == NULL ) {
|
|
rc = LDAP_NO_MEMORY;
|
|
errmsg = "no memory";
|
|
goto return_results;
|
|
}
|
|
#endif
|
|
|
|
op->o_ctrls[nctrls] = NULL;
|
|
|
|
/* step through each element */
|
|
for( tag = ber_first_element( ber, &len, &opaque );
|
|
tag != LBER_ERROR;
|
|
tag = ber_next_element( ber, &len, opaque ) )
|
|
{
|
|
LDAPControl *c;
|
|
LDAPControl **tctrls;
|
|
|
|
c = ch_calloc( 1, sizeof(LDAPControl) );
|
|
|
|
#if 0
|
|
if( c == NULL ) {
|
|
ldap_controls_free(op->o_ctrls);
|
|
op->o_ctrls = NULL;
|
|
|
|
rc = LDAP_NO_MEMORY;
|
|
errmsg = "no memory";
|
|
goto return_results;
|
|
}
|
|
#endif
|
|
|
|
/* allocate pointer space for current controls (nctrls)
|
|
* + this control + extra NULL
|
|
*/
|
|
tctrls = ch_realloc( op->o_ctrls,
|
|
(nctrls+2) * sizeof(LDAPControl *));
|
|
|
|
#if 0
|
|
if( tctrls == NULL ) {
|
|
ch_free( c );
|
|
ldap_controls_free(op->o_ctrls);
|
|
op->o_ctrls = NULL;
|
|
|
|
rc = LDAP_NO_MEMORY;
|
|
errmsg = "no memory";
|
|
goto return_results;
|
|
}
|
|
#endif
|
|
op->o_ctrls = tctrls;
|
|
|
|
op->o_ctrls[nctrls++] = c;
|
|
op->o_ctrls[nctrls] = NULL;
|
|
|
|
tag = ber_scanf( ber, "{a" /*}*/, &c->ldctl_oid );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
|
|
"get_ctrls: conn %lu get OID failed.\n",
|
|
conn->c_connid ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get oid failed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
ldap_controls_free( op->o_ctrls );
|
|
op->o_ctrls = NULL;
|
|
rc = SLAPD_DISCONNECT;
|
|
errmsg = "decoding controls error";
|
|
goto return_results;
|
|
}
|
|
|
|
tag = ber_peek_tag( ber, &len );
|
|
|
|
if( tag == LBER_BOOLEAN ) {
|
|
ber_int_t crit;
|
|
tag = ber_scanf( ber, "b", &crit );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
|
|
"get_ctrls: conn %lu get crit failed.\n",
|
|
conn->c_connid ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: get crit failed.\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
ldap_controls_free( op->o_ctrls );
|
|
op->o_ctrls = NULL;
|
|
rc = SLAPD_DISCONNECT;
|
|
errmsg = "decoding controls error";
|
|
goto return_results;
|
|
}
|
|
|
|
c->ldctl_iscritical = (crit != 0);
|
|
tag = ber_peek_tag( ber, &len );
|
|
}
|
|
|
|
if( tag == LBER_OCTETSTRING ) {
|
|
tag = ber_scanf( ber, "o", &c->ldctl_value );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_INFO, "get_ctrls: conn %lu: "
|
|
"%s (%scritical): get value failed.\n",
|
|
conn->c_connid,
|
|
c->ldctl_oid ? c->ldctl_oid : "(NULL)",
|
|
c->ldctl_iscritical ? "" : "non" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: conn %lu: "
|
|
"%s (%scritical): get value failed.\n",
|
|
conn->c_connid,
|
|
c->ldctl_oid ? c->ldctl_oid : "(NULL)",
|
|
c->ldctl_iscritical ? "" : "non" );
|
|
#endif
|
|
ldap_controls_free( op->o_ctrls );
|
|
op->o_ctrls = NULL;
|
|
rc = SLAPD_DISCONNECT;
|
|
errmsg = "decoding controls error";
|
|
goto return_results;
|
|
}
|
|
}
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
|
|
"get_ctrls: conn %lu oid=\"%s\" (%scritical)\n",
|
|
conn->c_connid,
|
|
c->ldctl_oid ? c->ldctl_oid : "(NULL)",
|
|
c->ldctl_iscritical ? "" : "non" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "=> get_ctrls: oid=\"%s\" (%scritical)\n",
|
|
c->ldctl_oid ? c->ldctl_oid : "(NULL)",
|
|
c->ldctl_iscritical ? "" : "non",
|
|
0 );
|
|
#endif
|
|
|
|
sc = find_ctrl( c->ldctl_oid );
|
|
if( sc != NULL ) {
|
|
/* recognized control */
|
|
slap_mask_t tagmask;
|
|
switch( op->o_tag ) {
|
|
case LDAP_REQ_ADD:
|
|
tagmask = SLAP_CTRL_ADD;
|
|
break;
|
|
case LDAP_REQ_BIND:
|
|
tagmask = SLAP_CTRL_BIND;
|
|
break;
|
|
case LDAP_REQ_COMPARE:
|
|
tagmask = SLAP_CTRL_COMPARE;
|
|
break;
|
|
case LDAP_REQ_DELETE:
|
|
tagmask = SLAP_CTRL_DELETE;
|
|
break;
|
|
case LDAP_REQ_MODIFY:
|
|
tagmask = SLAP_CTRL_MODIFY;
|
|
break;
|
|
case LDAP_REQ_RENAME:
|
|
tagmask = SLAP_CTRL_RENAME;
|
|
break;
|
|
case LDAP_REQ_SEARCH:
|
|
tagmask = SLAP_CTRL_SEARCH;
|
|
break;
|
|
case LDAP_REQ_UNBIND:
|
|
tagmask = SLAP_CTRL_UNBIND;
|
|
break;
|
|
case LDAP_REQ_EXTENDED:
|
|
/* FIXME: check list of extended operations */
|
|
tagmask = ~0U;
|
|
break;
|
|
default:
|
|
rc = LDAP_OTHER;
|
|
errmsg = "controls internal error";
|
|
goto return_results;
|
|
}
|
|
|
|
if (( sc->sc_mask & tagmask ) == tagmask ) {
|
|
/* available extension */
|
|
|
|
if( !sc->sc_parse ) {
|
|
rc = LDAP_OTHER;
|
|
errmsg = "not yet implemented";
|
|
goto return_results;
|
|
}
|
|
|
|
rc = sc->sc_parse( conn, op, c, &errmsg );
|
|
|
|
if( rc != LDAP_SUCCESS ) goto return_results;
|
|
|
|
if( sc->sc_mask & SLAP_CTRL_FRONTEND ) {
|
|
/* kludge to disable backend_control() check */
|
|
c->ldctl_iscritical = 0;
|
|
}
|
|
|
|
} else if( c->ldctl_iscritical ) {
|
|
/* unavailable CRITICAL control */
|
|
rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
|
|
errmsg = "critical extension is unavailable";
|
|
goto return_results;
|
|
}
|
|
|
|
} else if( c->ldctl_iscritical ) {
|
|
/* unrecognized CRITICAL control */
|
|
rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
|
|
errmsg = "critical extension is not recognized";
|
|
goto return_results;
|
|
}
|
|
}
|
|
|
|
return_results:
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG(( "operation", LDAP_LEVEL_RESULTS,
|
|
"get_ctrls: conn=%lu n=%d rc=%d err=%s\n",
|
|
conn->c_connid, nctrls, rc, errmsg ? errmsg : "" ));
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "<= get_ctrls: n=%d rc=%d err=%s\n",
|
|
nctrls, rc, errmsg ? errmsg : "");
|
|
#endif
|
|
|
|
if( sendres && rc != LDAP_SUCCESS ) {
|
|
if( rc == SLAPD_DISCONNECT ) {
|
|
send_ldap_disconnect( conn, op, LDAP_PROTOCOL_ERROR, errmsg );
|
|
} else {
|
|
send_ldap_result( conn, op, rc,
|
|
NULL, errmsg, NULL, NULL );
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int parseManageDSAit (
|
|
Connection *conn,
|
|
Operation *op,
|
|
LDAPControl *ctrl,
|
|
const char **text )
|
|
{
|
|
if ( op->o_managedsait != SLAP_NO_CONTROL ) {
|
|
*text = "manageDSAit control specified multiple times";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if ( ctrl->ldctl_value.bv_len ) {
|
|
*text = "manageDSAit control value not empty";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
op->o_managedsait = ctrl->ldctl_iscritical
|
|
? SLAP_CRITICAL_CONTROL
|
|
: SLAP_NONCRITICAL_CONTROL;
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
#ifdef LDAP_CONTROL_SUBENTRIES
|
|
static int parseSubentries (
|
|
Connection *conn,
|
|
Operation *op,
|
|
LDAPControl *ctrl,
|
|
const char **text )
|
|
{
|
|
if ( op->o_subentries != SLAP_NO_CONTROL ) {
|
|
*text = "subentries control specified multiple times";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
/* FIXME: should use BER library */
|
|
if( ( ctrl->ldctl_value.bv_len != 3 )
|
|
&& ( ctrl->ldctl_value.bv_val[0] != 0x01 )
|
|
&& ( ctrl->ldctl_value.bv_val[1] != 0x01 ))
|
|
{
|
|
*text = "subentries control value encoding is bogus";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
op->o_subentries = ctrl->ldctl_iscritical
|
|
? SLAP_CRITICAL_CONTROL
|
|
: SLAP_NONCRITICAL_CONTROL;
|
|
|
|
op->o_subentries_visibility = (ctrl->ldctl_value.bv_val[2] != 0x00);
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
#ifdef LDAP_CONTROL_NOOP
|
|
static int parseNoOp (
|
|
Connection *conn,
|
|
Operation *op,
|
|
LDAPControl *ctrl,
|
|
const char **text )
|
|
{
|
|
if ( op->o_noop != SLAP_NO_CONTROL ) {
|
|
*text = "noop control specified multiple times";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if ( ctrl->ldctl_value.bv_len ) {
|
|
*text = "noop control value not empty";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
op->o_noop = ctrl->ldctl_iscritical
|
|
? SLAP_CRITICAL_CONTROL
|
|
: SLAP_NONCRITICAL_CONTROL;
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
#endif
|
|
|
|
#ifdef LDAP_CONTROL_PAGEDRESULTS_REQUEST
|
|
static int parsePagedResults (
|
|
Connection *conn,
|
|
Operation *op,
|
|
LDAPControl *ctrl,
|
|
const char **text )
|
|
{
|
|
ber_tag_t tag;
|
|
ber_int_t size;
|
|
BerElement *ber;
|
|
struct berval cookie = { 0, NULL };
|
|
|
|
if ( op->o_pagedresults != SLAP_NO_CONTROL ) {
|
|
*text = "paged results control specified multiple times";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if ( ctrl->ldctl_value.bv_len == 0 ) {
|
|
*text = "paged results control value is empty";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
/* Parse the control value
|
|
* realSearchControlValue ::= SEQUENCE {
|
|
* size INTEGER (0..maxInt),
|
|
* -- requested page size from client
|
|
* -- result set size estimate from server
|
|
* cookie OCTET STRING
|
|
*/
|
|
ber = ber_init( &ctrl->ldctl_value );
|
|
if( ber == NULL ) {
|
|
*text = "internal error";
|
|
return LDAP_OTHER;
|
|
}
|
|
|
|
tag = ber_scanf( ber, "{im}", &size, &cookie );
|
|
(void) ber_free( ber, 1 );
|
|
|
|
if( tag == LBER_ERROR ) {
|
|
*text = "paged results control could not be decoded";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if( size <= 0 ) {
|
|
*text = "paged results control size invalid";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if( cookie.bv_len ) {
|
|
PagedResultsCookie reqcookie;
|
|
if( cookie.bv_len != sizeof( reqcookie ) ) {
|
|
/* bad cookie */
|
|
*text = "paged results cookie is invalid";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
AC_MEMCPY( &reqcookie, cookie.bv_val, sizeof( reqcookie ));
|
|
|
|
if( reqcookie > op->o_pagedresults_state.ps_cookie ) {
|
|
/* bad cookie */
|
|
*text = "paged results cookie is invalid";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
|
|
} else if( reqcookie < op->o_pagedresults_state.ps_cookie ) {
|
|
*text = "paged results cookie is invalid or old";
|
|
return LDAP_UNWILLING_TO_PERFORM;
|
|
}
|
|
}
|
|
|
|
op->o_pagedresults_state.ps_cookie = op->o_opid;
|
|
op->o_pagedresults_size = size;
|
|
|
|
op->o_pagedresults = ctrl->ldctl_iscritical
|
|
? SLAP_CRITICAL_CONTROL
|
|
: SLAP_NONCRITICAL_CONTROL;
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
#endif
|