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openldap/servers/slapd/result.c
Pierangelo Masarati 5ecdfd13b4 cleanup
2005-07-25 20:47:01 +00:00

1524 lines
36 KiB
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/* result.c - routines to send ldap results, errors, and referrals */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2005 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>.
*/
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include <ac/errno.h>
#include <ac/string.h>
#include <ac/ctype.h>
#include <ac/time.h>
#include <ac/unistd.h>
#include "slap.h"
const struct berval slap_dummy_bv = BER_BVNULL;
int slap_null_cb( Operation *op, SlapReply *rs )
{
return 0;
}
int slap_freeself_cb( Operation *op, SlapReply *rs )
{
assert( op->o_callback != NULL );
op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
op->o_callback = NULL;
return SLAP_CB_CONTINUE;
}
int slap_replog_cb( Operation *op, SlapReply *rs )
{
if ( rs->sr_err == LDAP_SUCCESS ) {
replog( op );
}
return SLAP_CB_CONTINUE;
}
static char *v2ref( BerVarray ref, const char *text )
{
size_t len = 0, i = 0;
char *v2;
if(ref == NULL) {
if (text) {
return ch_strdup(text);
} else {
return NULL;
}
}
if ( text != NULL ) {
len = strlen( text );
if (text[len-1] != '\n') {
i = 1;
}
}
v2 = SLAP_MALLOC( len+i+sizeof("Referral:") );
if( v2 == NULL ) {
Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
return NULL;
}
if( text != NULL ) {
strcpy(v2, text);
if( i ) {
v2[len++] = '\n';
}
}
strcpy( v2+len, "Referral:" );
len += sizeof("Referral:");
for( i=0; ref[i].bv_val != NULL; i++ ) {
v2 = SLAP_REALLOC( v2, len + ref[i].bv_len + 1 );
if( v2 == NULL ) {
Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
return NULL;
}
v2[len-1] = '\n';
AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
len += ref[i].bv_len;
if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
++len;
}
}
v2[len-1] = '\0';
return v2;
}
static ber_tag_t req2res( ber_tag_t tag )
{
switch( tag ) {
case LDAP_REQ_ADD:
case LDAP_REQ_BIND:
case LDAP_REQ_COMPARE:
case LDAP_REQ_EXTENDED:
case LDAP_REQ_MODIFY:
case LDAP_REQ_MODRDN:
tag++;
break;
case LDAP_REQ_DELETE:
tag = LDAP_RES_DELETE;
break;
case LDAP_REQ_ABANDON:
case LDAP_REQ_UNBIND:
tag = LBER_SEQUENCE;
break;
case LDAP_REQ_SEARCH:
tag = LDAP_RES_SEARCH_RESULT;
break;
default:
tag = LBER_SEQUENCE;
}
return tag;
}
static long send_ldap_ber(
Connection *conn,
BerElement *ber )
{
ber_len_t bytes;
ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
/* write only one pdu at a time - wait til it's our turn */
ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
/* lock the connection */
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
/* write the pdu */
while( 1 ) {
int err;
ber_socket_t sd;
if ( connection_state_closing( conn ) ) {
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
return 0;
}
if ( ber_flush( conn->c_sb, ber, 0 ) == 0 ) {
break;
}
err = errno;
/*
* we got an error. if it's ewouldblock, we need to
* wait on the socket being writable. otherwise, figure
* it's a hard error and return.
*/
Debug( LDAP_DEBUG_CONNS, "ber_flush failed errno=%d reason=\"%s\"\n",
err, sock_errstr(err), 0 );
if ( err != EWOULDBLOCK && err != EAGAIN ) {
connection_closing( conn );
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
return( -1 );
}
/* wait for socket to be write-ready */
conn->c_writewaiter = 1;
ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
slapd_set_write( sd, 1 );
ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
conn->c_writewaiter = 0;
}
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
return bytes;
}
static int
send_ldap_control( BerElement *ber, LDAPControl *c )
{
int rc;
assert( c != NULL );
rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
if( c->ldctl_iscritical ) {
rc = ber_printf( ber, "b",
(ber_int_t) c->ldctl_iscritical ) ;
if( rc == -1 ) return rc;
}
if( c->ldctl_value.bv_val != NULL ) {
rc = ber_printf( ber, "O", &c->ldctl_value );
if( rc == -1 ) return rc;
}
rc = ber_printf( ber, /*{*/"N}" );
if( rc == -1 ) return rc;
return 0;
}
static int
send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
{
int rc;
if( c == NULL )
return 0;
rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
if( rc == -1 ) return rc;
for( ; *c != NULL; c++) {
rc = send_ldap_control( ber, *c );
if( rc == -1 ) return rc;
}
#ifdef LDAP_DEVEL
/* this is a hack to avoid having to modify op->s_ctrls */
if( o->o_sortedresults ) {
BerElementBuffer berbuf;
BerElement *sber = (BerElement *) &berbuf;
LDAPControl sorted;
BER_BVZERO( &sorted.ldctl_value );
sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
sorted.ldctl_iscritical = 0;
ber_init2( sber, NULL, LBER_USE_DER );
ber_printf( sber, "{i}", LDAP_UNWILLING_TO_PERFORM );
if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
return -1;
}
(void) ber_free_buf( ber );
rc = send_ldap_control( ber, &sorted );
if( rc == -1 ) return rc;
}
#endif
rc = ber_printf( ber, /*{*/"N}" );
return rc;
}
static int
send_ldap_response(
Operation *op,
SlapReply *rs )
{
BerElementBuffer berbuf;
BerElement *ber = (BerElement *) &berbuf;
int rc = LDAP_SUCCESS;
long bytes;
if ( rs->sr_err == SLAPD_ABANDON ) {
rc = SLAPD_ABANDON;
goto clean2;
}
if ( op->o_callback ) {
int first = 1;
slap_callback *sc = op->o_callback,
*sc_next = op->o_callback;
rc = SLAP_CB_CONTINUE;
for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
sc_next = op->o_callback->sc_next;
if ( op->o_callback->sc_response ) {
rc = op->o_callback->sc_response( op, rs );
if ( first && op->o_callback == NULL ) {
sc = NULL;
}
if ( rc != SLAP_CB_CONTINUE ) break;
}
first = 0;
}
op->o_callback = sc;
if ( rc != SLAP_CB_CONTINUE ) goto clean2;
}
#ifdef LDAP_CONNECTIONLESS
if (op->o_conn && op->o_conn->c_is_udp)
ber = op->o_res_ber;
else
#endif
{
ber_init_w_nullc( ber, LBER_USE_DER );
ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
}
Debug( LDAP_DEBUG_TRACE,
"send_ldap_response: msgid=%d tag=%lu err=%d\n",
rs->sr_msgid, rs->sr_tag, rs->sr_err );
if( rs->sr_ref ) {
Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
NULL, NULL );
}
#ifdef LDAP_CONNECTIONLESS
if (op->o_conn && op->o_conn->c_is_udp &&
op->o_protocol == LDAP_VERSION2 )
{
rc = ber_printf( ber, "t{ess" /*"}"*/,
rs->sr_tag, rs->sr_err,
rs->sr_matched == NULL ? "" : rs->sr_matched,
rs->sr_text == NULL ? "" : rs->sr_text );
} else
#endif
if ( rs->sr_type == REP_INTERMEDIATE ) {
rc = ber_printf( ber, "{it{" /*"}}"*/,
rs->sr_msgid, rs->sr_tag );
} else {
rc = ber_printf( ber, "{it{ess" /*"}}"*/,
rs->sr_msgid, rs->sr_tag, rs->sr_err,
rs->sr_matched == NULL ? "" : rs->sr_matched,
rs->sr_text == NULL ? "" : rs->sr_text );
}
if( rc != -1 ) {
if ( rs->sr_ref != NULL ) {
assert( rs->sr_err == LDAP_REFERRAL );
rc = ber_printf( ber, "t{W}",
LDAP_TAG_REFERRAL, rs->sr_ref );
} else {
assert( rs->sr_err != LDAP_REFERRAL );
}
}
if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
rc = ber_printf( ber, "tO",
LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
}
if( rc != -1 &&
( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
{
if ( rs->sr_rspoid != NULL ) {
rc = ber_printf( ber, "ts",
rs->sr_type == REP_EXTENDED
? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
rs->sr_rspoid );
}
if( rc != -1 && rs->sr_rspdata != NULL ) {
rc = ber_printf( ber, "tO",
rs->sr_type == REP_EXTENDED
? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
rs->sr_rspdata );
}
}
if( rc != -1 ) {
rc = ber_printf( ber, /*"{"*/ "N}" );
}
if( rc != -1 ) {
rc = send_ldap_controls( op, ber, rs->sr_ctrls );
}
if( rc != -1 ) {
rc = ber_printf( ber, /*"{"*/ "N}" );
}
#ifdef LDAP_CONNECTIONLESS
if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
&& rc != -1 )
{
rc = ber_printf( ber, /*"{"*/ "N}" );
}
#endif
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
#ifdef LDAP_CONNECTIONLESS
if (!op->o_conn || op->o_conn->c_is_udp == 0)
#endif
{
ber_free_buf( ber );
}
goto cleanup;
}
/* send BER */
bytes = send_ldap_ber( op->o_conn, ber );
#ifdef LDAP_CONNECTIONLESS
if (!op->o_conn || op->o_conn->c_is_udp == 0)
#endif
{
ber_free_buf( ber );
}
if ( bytes < 0 ) {
Debug( LDAP_DEBUG_ANY,
"send_ldap_response: ber write failed\n",
0, 0, 0 );
goto cleanup;
}
ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
cleanup:;
/* Tell caller that we did this for real, as opposed to being
* overridden by a callback
*/
rc = SLAP_CB_CONTINUE;
clean2:;
if ( op->o_callback ) {
int first = 1;
slap_callback *sc = op->o_callback, *sc_next;
for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
sc_next = op->o_callback->sc_next;
if ( op->o_callback->sc_cleanup ) {
(void)op->o_callback->sc_cleanup( op, rs );
if ( first && op->o_callback != sc ) {
sc = op->o_callback;
}
}
first = 0;
}
op->o_callback = sc;
}
if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
free( (char *)rs->sr_matched );
rs->sr_matched = NULL;
}
if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
ber_bvarray_free( rs->sr_ref );
rs->sr_ref = NULL;
}
return rc;
}
void
send_ldap_disconnect( Operation *op, SlapReply *rs )
{
#define LDAP_UNSOLICITED_ERROR(e) \
( (e) == LDAP_PROTOCOL_ERROR \
|| (e) == LDAP_STRONG_AUTH_REQUIRED \
|| (e) == LDAP_UNAVAILABLE )
assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
rs->sr_type = REP_EXTENDED;
Debug( LDAP_DEBUG_TRACE,
"send_ldap_disconnect %d:%s\n",
rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
if ( op->o_protocol < LDAP_VERSION3 ) {
rs->sr_rspoid = NULL;
rs->sr_tag = req2res( op->o_tag );
rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
} else {
rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
rs->sr_tag = LDAP_RES_EXTENDED;
rs->sr_msgid = 0;
}
if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
Statslog( LDAP_DEBUG_STATS,
"%s DISCONNECT tag=%lu err=%d text=%s\n",
op->o_log_prefix, rs->sr_tag, rs->sr_err,
rs->sr_text ? rs->sr_text : "", 0 );
}
}
void
slap_send_ldap_result( Operation *op, SlapReply *rs )
{
char *tmp = NULL;
const char *otext = rs->sr_text;
BerVarray oref = rs->sr_ref;
rs->sr_type = REP_RESULT;
/* Propagate Abandons so that cleanup callbacks can be processed */
if ( rs->sr_err == SLAPD_ABANDON )
goto abandon;
assert( !LDAP_API_ERROR( rs->sr_err ) );
Debug( LDAP_DEBUG_TRACE,
"send_ldap_result: %s p=%d\n",
op->o_log_prefix, op->o_protocol, 0 );
Debug( LDAP_DEBUG_ARGS,
"send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
rs->sr_text ? rs->sr_text : "" );
if( rs->sr_ref ) {
Debug( LDAP_DEBUG_ARGS,
"send_ldap_result: referral=\"%s\"\n",
rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
NULL, NULL );
}
assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
if ( rs->sr_err == LDAP_REFERRAL ) {
#ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
if( op->o_domain_scope ) {
rs->sr_ref = NULL;
}
#endif
if( rs->sr_ref == NULL ) {
rs->sr_err = LDAP_NO_SUCH_OBJECT;
} else if ( op->o_protocol < LDAP_VERSION3 ) {
rs->sr_err = LDAP_PARTIAL_RESULTS;
}
}
if ( op->o_protocol < LDAP_VERSION3 ) {
tmp = v2ref( rs->sr_ref, rs->sr_text );
rs->sr_text = tmp;
rs->sr_ref = NULL;
}
rs->sr_tag = req2res( op->o_tag );
rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
abandon:
if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
if ( op->o_tag == LDAP_REQ_SEARCH ) {
char nbuf[64];
snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
rs->sr_err, rs->sr_nentries );
Statslog( LDAP_DEBUG_STATS,
"%s SEARCH RESULT tag=%lu err=%s text=%s\n",
op->o_log_prefix, rs->sr_tag, nbuf,
rs->sr_text ? rs->sr_text : "", 0 );
} else {
Statslog( LDAP_DEBUG_STATS,
"%s RESULT tag=%lu err=%d text=%s\n",
op->o_log_prefix, rs->sr_tag, rs->sr_err,
rs->sr_text ? rs->sr_text : "", 0 );
}
}
if( tmp != NULL ) ch_free(tmp);
rs->sr_text = otext;
rs->sr_ref = oref;
}
void
send_ldap_sasl( Operation *op, SlapReply *rs )
{
rs->sr_type = REP_SASL;
Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
rs->sr_err,
rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
rs->sr_tag = req2res( op->o_tag );
rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
send_ldap_response( op, rs );
}
void
slap_send_ldap_extended( Operation *op, SlapReply *rs )
{
rs->sr_type = REP_EXTENDED;
Debug( LDAP_DEBUG_TRACE,
"send_ldap_extended: err=%d oid=%s len=%ld\n",
rs->sr_err,
rs->sr_rspoid ? rs->sr_rspoid : "",
rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
rs->sr_tag = req2res( op->o_tag );
rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
send_ldap_response( op, rs );
}
void
slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
{
rs->sr_type = REP_INTERMEDIATE;
Debug( LDAP_DEBUG_TRACE,
"send_ldap_intermediate: err=%d oid=%s len=%ld\n",
rs->sr_err,
rs->sr_rspoid ? rs->sr_rspoid : "",
rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
rs->sr_tag = LDAP_RES_INTERMEDIATE;
rs->sr_msgid = op->o_msgid;
send_ldap_response( op, rs );
}
int
slap_send_search_entry( Operation *op, SlapReply *rs )
{
BerElementBuffer berbuf;
BerElement *ber = (BerElement *) &berbuf;
Attribute *a;
int i, j, rc=-1, bytes;
char *edn;
int userattrs;
AccessControlState acl_state = ACL_STATE_INIT;
int attrsonly;
AttributeDescription *ad_entry = slap_schema.si_ad_entry;
/* a_flags: array of flags telling if the i-th element will be
* returned or filtered out
* e_flags: array of a_flags
*/
char **e_flags = NULL;
rs->sr_type = REP_SEARCH;
/* eventually will loop through generated operational attribute types
* currently implemented types include:
* entryDN, subschemaSubentry, and hasSubordinates */
/* NOTE: moved before overlays callback circling because
* they may modify entry and other stuff in rs */
/* check for special all operational attributes ("+") type */
/* FIXME: maybe we could se this flag at the operation level;
* however, in principle the caller of send_search_entry() may
* change the attribute list at each call */
rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
rc = backend_operational( op, rs );
if ( rc ) {
goto error_return;
}
if ( op->o_callback ) {
int first = 1;
slap_callback *sc = op->o_callback,
*sc_next = op->o_callback;
rc = SLAP_CB_CONTINUE;
for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next )
{
sc_next = op->o_callback->sc_next;
if ( op->o_callback->sc_response ) {
rc = op->o_callback->sc_response( op, rs );
if ( first && op->o_callback == NULL ) {
sc = NULL;
}
if ( rc != SLAP_CB_CONTINUE ) break;
}
first = 0;
}
op->o_callback = sc;
if ( rc != SLAP_CB_CONTINUE ) goto error_return;
}
Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
op->o_connid, rs->sr_entry->e_name.bv_val,
op->ors_attrsonly ? " (attrsOnly)" : "" );
attrsonly = op->ors_attrsonly;
if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
Debug( LDAP_DEBUG_ACL,
"send_search_entry: conn %lu access to entry (%s) not allowed\n",
op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
rc = 1;
goto error_return;
}
edn = rs->sr_entry->e_nname.bv_val;
if ( op->o_res_ber ) {
/* read back control or LDAP_CONNECTIONLESS */
ber = op->o_res_ber;
} else {
struct berval bv;
bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
ber_init2( ber, &bv, LBER_USE_DER );
ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
}
#ifdef LDAP_CONNECTIONLESS
if ( op->o_conn && op->o_conn->c_is_udp ) {
/* CONNECTIONLESS */
if ( op->o_protocol == LDAP_VERSION2 ) {
rc = ber_printf(ber, "t{O{" /*}}*/,
LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
} else {
rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
}
} else
#endif
if ( op->o_res_ber ) {
/* read back control */
rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
} else {
rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
}
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber_printf failed\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
goto error_return;
}
/* check for special all user attributes ("*") type */
userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
/* create an array of arrays of flags. Each flag corresponds
* to particular value of attribute and equals 1 if value matches
* to ValuesReturnFilter or 0 if not
*/
if ( op->o_vrFilter != NULL ) {
int k = 0;
size_t size;
for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
}
size = i * sizeof(char *) + k;
if ( size > 0 ) {
char *a_flags;
e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
if( e_flags == NULL ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu slap_sl_calloc failed\n",
op->o_connid ? op->o_connid : 0, 0, 0 );
ber_free( ber, 1 );
send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
goto error_return;
}
a_flags = (char *)(e_flags + i);
memset( a_flags, 0, k );
for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
e_flags[i] = a_flags;
a_flags += j;
}
rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY, "send_search_entry: "
"conn %lu matched values filtering failed\n",
op->o_connid ? op->o_connid : 0, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"matched values filtering error" );
goto error_return;
}
}
}
for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
AttributeDescription *desc = a->a_desc;
int finish = 0;
if ( rs->sr_attrs == NULL ) {
/* all attrs request, skip operational attributes */
if( is_at_operational( desc->ad_type ) ) {
continue;
}
} else {
/* specific attrs requested */
if ( is_at_operational( desc->ad_type ) ) {
if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
!ad_inlist( desc, rs->sr_attrs ) )
{
continue;
}
} else {
if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) )
{
continue;
}
}
}
if ( attrsonly ) {
if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
ACL_READ, &acl_state ) )
{
Debug( LDAP_DEBUG_ACL, "send_search_entry: "
"conn %lu access to attribute %s not allowed\n",
op->o_connid, desc->ad_cname.bv_val, 0 );
continue;
}
if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber_printf failed\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"encoding description error");
goto error_return;
}
finish = 1;
} else {
int first = 1;
for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
if ( ! access_allowed( op, rs->sr_entry,
desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
{
Debug( LDAP_DEBUG_ACL,
"send_search_entry: conn %lu "
"access to attribute %s, value #%d not allowed\n",
op->o_connid, desc->ad_cname.bv_val, i );
continue;
}
if ( op->o_vrFilter && e_flags[j][i] == 0 ){
continue;
}
if ( first ) {
first = 0;
finish = 1;
if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber_printf failed\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"encoding description error");
goto error_return;
}
}
if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu "
"ber_printf failed.\n", op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"encoding values error" );
goto error_return;
}
}
}
if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber_printf failed\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
goto error_return;
}
}
/* NOTE: moved before overlays callback circling because
* they may modify entry and other stuff in rs */
if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
int k = 0;
size_t size;
for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
}
size = i * sizeof(char *) + k;
if ( size > 0 ) {
char *a_flags, **tmp;
/*
* Reuse previous memory - we likely need less space
* for operational attributes
*/
tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
op->o_tmpmemctx );
if ( tmp == NULL ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu "
"not enough memory "
"for matched values filtering\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"not enough memory for matched values filtering" );
goto error_return;
}
e_flags = tmp;
a_flags = (char *)(e_flags + i);
memset( a_flags, 0, k );
for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
e_flags[i] = a_flags;
a_flags += j;
}
rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu "
"matched values filtering failed\n",
op->o_connid ? op->o_connid : 0, 0, 0);
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"matched values filtering error" );
goto error_return;
}
}
}
for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
AttributeDescription *desc = a->a_desc;
if ( rs->sr_attrs == NULL ) {
/* all attrs request, skip operational attributes */
if( is_at_operational( desc->ad_type ) ) {
continue;
}
} else {
/* specific attrs requested */
if( is_at_operational( desc->ad_type ) ) {
if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
!ad_inlist( desc, rs->sr_attrs ) )
{
continue;
}
} else {
if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
continue;
}
}
}
if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
ACL_READ, &acl_state ) )
{
Debug( LDAP_DEBUG_ACL,
"send_search_entry: conn %lu "
"access to attribute %s not allowed\n",
op->o_connid, desc->ad_cname.bv_val, 0 );
continue;
}
rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu "
"ber_printf failed\n", op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"encoding description error" );
goto error_return;
}
if ( ! attrsonly ) {
for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
if ( ! access_allowed( op, rs->sr_entry,
desc, &a->a_vals[i], ACL_READ, &acl_state ) )
{
Debug( LDAP_DEBUG_ACL,
"send_search_entry: conn %lu "
"access to %s, value %d not allowed\n",
op->o_connid, desc->ad_cname.bv_val, i );
continue;
}
if ( op->o_vrFilter && e_flags[j][i] == 0 ){
continue;
}
if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber_printf failed\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER,
"encoding values error" );
goto error_return;
}
}
}
if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber_printf failed\n",
op->o_connid, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
goto error_return;
}
}
/* free e_flags */
if ( e_flags ) {
slap_sl_free( e_flags, op->o_tmpmemctx );
e_flags = NULL;
}
rc = ber_printf( ber, /*{{*/ "}N}" );
if( rc != -1 ) {
rc = send_ldap_controls( op, ber, rs->sr_ctrls );
}
if( rc != -1 ) {
#ifdef LDAP_CONNECTIONLESS
if( op->o_conn && op->o_conn->c_is_udp ) {
if ( op->o_protocol != LDAP_VERSION2 ) {
rc = ber_printf( ber, /*{*/ "N}" );
}
} else
#endif
if ( op->o_res_ber == NULL ) {
rc = ber_printf( ber, /*{*/ "N}" );
}
}
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
if ( op->o_res_ber == NULL ) ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
rc = 1;
goto error_return;
}
if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
be_entry_release_rw( op, rs->sr_entry, 0 );
rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
rs->sr_entry = NULL;
}
if ( op->o_res_ber == NULL ) {
bytes = send_ldap_ber( op->o_conn, ber );
ber_free_buf( ber );
if ( bytes < 0 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_entry: conn %lu ber write failed.\n",
op->o_connid, 0, 0 );
rc = -1;
goto error_return;
}
rs->sr_nentries++;
ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
}
Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
op->o_log_prefix, edn, 0, 0, 0 );
Debug( LDAP_DEBUG_TRACE,
"<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
rc = 0;
error_return:;
if ( op->o_callback ) {
int first = 1;
slap_callback *sc = op->o_callback, *sc_next;
for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
sc_next = op->o_callback->sc_next;
if ( op->o_callback->sc_cleanup ) {
(void)op->o_callback->sc_cleanup( op, rs );
if ( first && op->o_callback != sc ) {
sc = op->o_callback;
}
}
first = 0;
}
op->o_callback = sc;
}
if ( e_flags ) {
slap_sl_free( e_flags, op->o_tmpmemctx );
}
if ( rs->sr_operational_attrs ) {
attrs_free( rs->sr_operational_attrs );
rs->sr_operational_attrs = NULL;
}
rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
/* FIXME: I think rs->sr_type should be explicitly set to
* REP_SEARCH here. That's what it was when we entered this
* function. send_ldap_error may have changed it, but we
* should set it back so that the cleanup functions know
* what they're doing.
*/
if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
&& rs->sr_entry
&& ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
{
entry_free( rs->sr_entry );
rs->sr_entry = NULL;
rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
}
return( rc );
}
int
slap_send_search_reference( Operation *op, SlapReply *rs )
{
BerElementBuffer berbuf;
BerElement *ber = (BerElement *) &berbuf;
int rc = 0;
int bytes;
AttributeDescription *ad_ref = slap_schema.si_ad_ref;
AttributeDescription *ad_entry = slap_schema.si_ad_entry;
rs->sr_type = REP_SEARCHREF;
if ( op->o_callback ) {
int first = 1;
slap_callback *sc = op->o_callback,
*sc_next = op->o_callback;
rc = SLAP_CB_CONTINUE;
for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
sc_next = op->o_callback->sc_next;
if ( op->o_callback->sc_response ) {
rc = op->o_callback->sc_response( op, rs );
if ( first && op->o_callback == NULL ) {
sc = NULL;
}
if ( rc != SLAP_CB_CONTINUE ) break;
}
first = 0;
}
op->o_callback = sc;
if ( rc != SLAP_CB_CONTINUE ) goto rel;
}
Debug( LDAP_DEBUG_TRACE,
"=> send_search_reference: dn=\"%s\"\n",
rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
ad_entry, NULL, ACL_READ, NULL ) )
{
Debug( LDAP_DEBUG_ACL,
"send_search_reference: access to entry not allowed\n",
0, 0, 0 );
rc = 1;
goto rel;
}
if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
ad_ref, NULL, ACL_READ, NULL ) )
{
Debug( LDAP_DEBUG_ACL,
"send_search_reference: access "
"to reference not allowed\n",
0, 0, 0 );
rc = 1;
goto rel;
}
#ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
if( op->o_domain_scope ) {
Debug( LDAP_DEBUG_ANY,
"send_search_reference: domainScope control in (%s)\n",
rs->sr_entry->e_dn, 0, 0 );
rc = 0;
goto rel;
}
#endif
if( rs->sr_ref == NULL ) {
Debug( LDAP_DEBUG_ANY,
"send_search_reference: null ref in (%s)\n",
rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
rc = 1;
goto rel;
}
if( op->o_protocol < LDAP_VERSION3 ) {
rc = 0;
/* save the references for the result */
if( rs->sr_ref[0].bv_val != NULL ) {
if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
rc = LDAP_OTHER;
}
goto rel;
}
#ifdef LDAP_CONNECTIONLESS
if( op->o_conn && op->o_conn->c_is_udp ) {
ber = op->o_res_ber;
} else
#endif
{
ber_init_w_nullc( ber, LBER_USE_DER );
ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
}
rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
if( rc != -1 ) {
rc = send_ldap_controls( op, ber, rs->sr_ctrls );
}
if( rc != -1 ) {
rc = ber_printf( ber, /*"{"*/ "N}" );
}
if ( rc == -1 ) {
Debug( LDAP_DEBUG_ANY,
"send_search_reference: ber_printf failed\n", 0, 0, 0 );
#ifdef LDAP_CONNECTIONLESS
if (!op->o_conn || op->o_conn->c_is_udp == 0)
#endif
ber_free_buf( ber );
send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
goto rel;
}
rc = 0;
if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
be_entry_release_rw( op, rs->sr_entry, 0 );
rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
rs->sr_entry = NULL;
}
#ifdef LDAP_CONNECTIONLESS
if (!op->o_conn || op->o_conn->c_is_udp == 0) {
#endif
bytes = send_ldap_ber( op->o_conn, ber );
ber_free_buf( ber );
ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
#ifdef LDAP_CONNECTIONLESS
}
#endif
Statslog( LDAP_DEBUG_STATS2, "%s REF dn=\"%s\"\n",
op->o_log_prefix, rs->sr_entry ? rs->sr_entry->e_dn : "(null)",
0, 0, 0 );
Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
rel:
if ( op->o_callback ) {
int first = 1;
slap_callback *sc = op->o_callback, *sc_next;
for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
sc_next = op->o_callback->sc_next;
if ( op->o_callback->sc_cleanup ) {
(void)op->o_callback->sc_cleanup( op, rs );
if ( first && op->o_callback != sc ) {
sc = op->o_callback;
}
}
first = 0;
}
op->o_callback = sc;
}
return rc;
}
int
str2result(
char *s,
int *code,
char **matched,
char **info )
{
int rc;
char *c;
*code = LDAP_SUCCESS;
*matched = NULL;
*info = NULL;
if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
s, 0, 0 );
return( -1 );
}
rc = 0;
while ( (s = strchr( s, '\n' )) != NULL ) {
*s++ = '\0';
if ( *s == '\0' ) {
break;
}
if ( (c = strchr( s, ':' )) != NULL ) {
c++;
}
if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
if ( c != NULL ) {
*code = atoi( c );
}
} else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
if ( c != NULL ) {
*matched = c;
}
} else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
if ( c != NULL ) {
*info = c;
}
} else {
Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
s, 0, 0 );
rc = -1;
}
}
return( rc );
}
int slap_read_controls(
Operation *op,
SlapReply *rs,
Entry *e,
const struct berval *oid,
LDAPControl **ctrl )
{
int rc;
struct berval bv;
BerElementBuffer berbuf;
BerElement *ber = (BerElement *) &berbuf;
LDAPControl c;
Operation myop;
Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
oid->bv_val, e->e_dn, 0 );
rs->sr_entry = e;
rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
op->o_preread_attrs : op->o_postread_attrs;
bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
ber_init2( ber, &bv, LBER_USE_DER );
ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
/* create new operation */
myop = *op;
myop.o_bd = NULL;
myop.o_res_ber = ber;
myop.o_callback = NULL;
rc = slap_send_search_entry( &myop, rs );
if( rc ) return rc;
rc = ber_flatten2( ber, &c.ldctl_value, 0 );
if( rc == LBER_ERROR ) return LDAP_OTHER;
c.ldctl_oid = oid->bv_val;
c.ldctl_iscritical = 0;
if ( *ctrl == NULL ) {
/* first try */
*ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
} else {
/* retry: free previous try */
slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
}
**ctrl = c;
return LDAP_SUCCESS;
}
/* Map API errors to protocol errors... */
int
slap_map_api2result( SlapReply *rs )
{
switch(rs->sr_err) {
case LDAP_SERVER_DOWN:
return LDAP_UNAVAILABLE;
case LDAP_LOCAL_ERROR:
return LDAP_OTHER;
case LDAP_ENCODING_ERROR:
case LDAP_DECODING_ERROR:
return LDAP_PROTOCOL_ERROR;
case LDAP_TIMEOUT:
return LDAP_UNAVAILABLE;
case LDAP_AUTH_UNKNOWN:
return LDAP_AUTH_METHOD_NOT_SUPPORTED;
case LDAP_FILTER_ERROR:
rs->sr_text = "Filter error";
return LDAP_OTHER;
case LDAP_USER_CANCELLED:
rs->sr_text = "User cancelled";
return LDAP_OTHER;
case LDAP_PARAM_ERROR:
return LDAP_PROTOCOL_ERROR;
case LDAP_NO_MEMORY:
return LDAP_OTHER;
case LDAP_CONNECT_ERROR:
return LDAP_UNAVAILABLE;
case LDAP_NOT_SUPPORTED:
return LDAP_UNWILLING_TO_PERFORM;
case LDAP_CONTROL_NOT_FOUND:
return LDAP_PROTOCOL_ERROR;
case LDAP_NO_RESULTS_RETURNED:
return LDAP_NO_SUCH_OBJECT;
case LDAP_MORE_RESULTS_TO_RETURN:
rs->sr_text = "More results to return";
return LDAP_OTHER;
case LDAP_CLIENT_LOOP:
case LDAP_REFERRAL_LIMIT_EXCEEDED:
return LDAP_LOOP_DETECT;
default:
if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
return rs->sr_err;
}
}
slap_mask_t
slap_attr_flags( AttributeName *an )
{
slap_mask_t flags = SLAP_ATTRS_UNDEFINED;
if ( an == NULL ) {
flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
} else {
flags |= an_find( an, &AllOper )
? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
flags |= an_find( an, &AllUser )
? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
}
return flags;
}
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