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openldap/libraries/libldap/result.c
Howard Chu dc3e5fb99d ITS#818, ITS#980, ITS#1234 ldapsearch/referral hang - set refer_cnt to 0 
after v3refs have been chased. They are fully processed by the time we get
back, so we should just return the current result message to the caller.
2002-04-16 12:53:13 +00:00

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/* $OpenLDAP$ */
/*
* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
/* Portions
* Copyright (c) 1990 Regents of the University of Michigan.
* All rights reserved.
*/
/*---
* This notice applies to changes, created by or for Novell, Inc.,
* to preexisting works for which notices appear elsewhere in this file.
*
* 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.
*---
* Modification to OpenLDAP source by Novell, Inc.
* April 2000 sfs Add code to process V3 referrals and search results
*
* result.c - wait for an ldap result
*/
/*
* LDAPv3 (RFC2251)
* LDAPResult ::= SEQUENCE {
* resultCode ENUMERATED { ... },
* matchedDN LDAPDN,
* errorMessage LDAPString,
* referral Referral OPTIONAL
* }
* Referral ::= SEQUENCE OF LDAPURL (one or more)
* LDAPURL ::= LDAPString (limited to URL chars)
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/errno.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include <ac/unistd.h>
#include "ldap-int.h"
static int ldap_abandoned LDAP_P(( LDAP *ld, ber_int_t msgid ));
static int ldap_mark_abandoned LDAP_P(( LDAP *ld, ber_int_t msgid ));
static int wait4msg LDAP_P(( LDAP *ld, ber_int_t msgid, int all, struct timeval *timeout,
LDAPMessage **result ));
static ber_tag_t try_read1msg LDAP_P(( LDAP *ld, ber_int_t msgid,
int all, Sockbuf *sb, LDAPConn *lc, LDAPMessage **result ));
static ber_tag_t build_result_ber LDAP_P(( LDAP *ld, BerElement **bp, LDAPRequest *lr ));
static void merge_error_info LDAP_P(( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr ));
static LDAPMessage * chkResponseList LDAP_P(( LDAP *ld, int msgid, int all));
/*
* ldap_result - wait for an ldap result response to a message from the
* ldap server. If msgid is LDAP_RES_ANY (-1), any message will be
* accepted. If msgid is LDAP_RES_UNSOLICITED (0), any unsolicited
* message is accepted. Otherwise ldap_result will wait for a response
* with msgid. If all is LDAP_MSG_ONE (0) the first message with id
* msgid will be accepted, otherwise, ldap_result will wait for all
* responses with id msgid and then return a pointer to the entire list
* of messages. In general, this is only useful for search responses,
* which can be of three message types (zero or more entries, zero or
* search references, followed by an ldap result). An extension to
* LDAPv3 allows partial extended responses to be returned in response
* to any request. The type of the first message received is returned.
* When waiting, any messages that have been abandoned are discarded.
*
* Example:
* ldap_result( s, msgid, all, timeout, result )
*/
int
ldap_result(
LDAP *ld,
int msgid,
int all,
struct timeval *timeout,
LDAPMessage **result )
{
LDAPMessage *lm;
assert( ld != NULL );
assert( result != NULL );
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS, "ldap_result msgid %d\n", msgid ));
#else
Debug( LDAP_DEBUG_TRACE, "ldap_result msgid %d\n", msgid, 0, 0 );
#endif
if( ld == NULL ) {
return -1;
}
if( result == NULL ) {
ld->ld_errno = LDAP_PARAM_ERROR;
return -1;
}
lm = chkResponseList(ld, msgid, all);
if ( lm == NULL ) {
return( wait4msg( ld, msgid, all, timeout, result ) );
}
*result = lm;
ld->ld_errno = LDAP_SUCCESS;
return( lm->lm_msgtype );
}
static LDAPMessage *
chkResponseList(
LDAP *ld,
int msgid,
int all)
{
LDAPMessage *lm, *lastlm, *nextlm;
/*
* Look through the list of responses we have received on
* this association and see if the response we're interested in
* is there. If it is, return it. If not, call wait4msg() to
* wait until it arrives or timeout occurs.
*/
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS,
"ldap_chkResponseList for msgid=%d, all=%d\n", msgid, all ));
#else
Debug( LDAP_DEBUG_TRACE,
"ldap_chkResponseList for msgid=%d, all=%d\n",
msgid, all, 0 );
#endif
lastlm = NULL;
for ( lm = ld->ld_responses; lm != NULL; lm = nextlm ) {
nextlm = lm->lm_next;
if ( ldap_abandoned( ld, lm->lm_msgid ) ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"ldap_chkResponseList msg abandoned, msgid %d\n", msgid ));
#else
Debug( LDAP_DEBUG_TRACE,
"ldap_chkResponseList msg abandoned, msgid %d\n",
msgid, 0, 0 );
#endif
ldap_mark_abandoned( ld, lm->lm_msgid );
if ( lastlm == NULL ) {
/* Remove first entry in list */
ld->ld_responses = lm->lm_next;
} else {
lastlm->lm_next = nextlm;
}
ldap_msgfree( lm );
continue;
}
if ( msgid == LDAP_RES_ANY || lm->lm_msgid == msgid ) {
LDAPMessage *tmp;
if ( all == LDAP_MSG_ONE || msgid == LDAP_RES_UNSOLICITED ) {
break;
}
for ( tmp = lm; tmp != NULL; tmp = tmp->lm_chain ) {
if ( tmp->lm_msgtype != LDAP_RES_SEARCH_ENTRY
&& tmp->lm_msgtype != LDAP_RES_SEARCH_REFERENCE
&& tmp->lm_msgtype != LDAP_RES_EXTENDED_PARTIAL )
{
break;
}
}
if ( tmp == NULL ) {
lm = NULL;
}
break;
}
lastlm = lm;
}
if ( lm != NULL ) {
/* Found an entry, remove it from the list */
if ( lastlm == NULL ) {
ld->ld_responses = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
? lm->lm_chain : lm->lm_next);
} else {
lastlm->lm_next = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
? lm->lm_chain : lm->lm_next);
}
if ( all == LDAP_MSG_ONE && lm->lm_chain != NULL ) {
lm->lm_chain->lm_next = lm->lm_next;
lm->lm_chain = NULL;
}
lm->lm_next = NULL;
}
#ifdef LDAP_DEBUG
if( lm == NULL) {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_RESULTS,
"ldap_chkResponseList returns NULL\n" ));
#else
Debug( LDAP_DEBUG_TRACE,
"ldap_chkResponseList returns NULL\n", 0, 0, 0);
#endif
} else {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_RESULTS,
"ldap_chkResponseList returns msgid %d, type 0x02lu\n",
lm->lm_msgid, (unsigned long) lm->lm_msgtype ));
#else
Debug( LDAP_DEBUG_TRACE,
"ldap_chkResponseList returns msgid %d, type 0x%02lu\n",
lm->lm_msgid, (unsigned long) lm->lm_msgtype, 0);
#endif
}
#endif
return lm;
}
static int
wait4msg(
LDAP *ld,
ber_int_t msgid,
int all,
struct timeval *timeout,
LDAPMessage **result )
{
int rc;
struct timeval tv, *tvp;
time_t start_time = 0;
time_t tmp_time;
LDAPConn *lc, *nextlc;
assert( ld != NULL );
assert( result != NULL );
#ifdef LDAP_DEBUG
if ( timeout == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS,
"wait4msg (infinite timeout), msgid %d\n", msgid ));
#else
Debug( LDAP_DEBUG_TRACE, "wait4msg (infinite timeout), msgid %d\n",
msgid, 0, 0 );
#endif
} else {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS,
"wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
(long) timeout->tv_sec, (long) timeout->tv_usec, msgid ));
#else
Debug( LDAP_DEBUG_TRACE, "wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
(long) timeout->tv_sec, (long) timeout->tv_usec, msgid );
#endif
}
#endif /* LDAP_DEBUG */
if ( timeout == NULL ) {
tvp = NULL;
} else {
tv = *timeout;
tvp = &tv;
start_time = time( NULL );
}
rc = -2;
while ( rc == -2 ) {
#ifdef LDAP_DEBUG
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS,
"wait4msg continue, msgid %d, all %d\n", msgid, all ));
#else
Debug( LDAP_DEBUG_TRACE, "wait4msg continue, msgid %d, all %d\n",
msgid, all, 0 );
#endif
if ( ldap_debug & LDAP_DEBUG_TRACE ) {
ldap_dump_connection( ld, ld->ld_conns, 1 );
ldap_dump_requests_and_responses( ld );
}
#endif /* LDAP_DEBUG */
if( (*result = chkResponseList(ld, msgid, all)) != NULL ) {
rc = (*result)->lm_msgtype;
} else {
for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
if ( ber_sockbuf_ctrl( lc->lconn_sb,
LBER_SB_OPT_DATA_READY, NULL ) ) {
rc = try_read1msg( ld, msgid, all, lc->lconn_sb,
lc, result );
break;
}
}
if ( lc == NULL ) {
rc = ldap_int_select( ld, tvp );
#ifdef LDAP_DEBUG
if ( rc == -1 ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS,
"wait4msg: ldap_int_select returned -1: errno %d\n",
errno ));
#else
Debug( LDAP_DEBUG_TRACE,
"ldap_int_select returned -1: errno %d\n",
errno, 0, 0 );
#endif
}
#endif
if ( rc == 0 || ( rc == -1 && (
!LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART)
|| errno != EINTR )))
{
ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
LDAP_TIMEOUT);
return( rc );
}
if ( rc == -1 ) {
rc = -2; /* select interrupted: loop */
} else {
rc = -2;
for ( lc = ld->ld_conns; rc == -2 && lc != NULL;
lc = nextlc ) {
nextlc = lc->lconn_next;
if ( lc->lconn_status ==
LDAP_CONNST_CONNECTED &&
ldap_is_read_ready( ld,
lc->lconn_sb )) {
rc = try_read1msg( ld, msgid, all,
lc->lconn_sb, lc, result );
}
}
}
}
}
if ( rc == -2 && tvp != NULL ) {
tmp_time = time( NULL );
if (( tv.tv_sec -= ( tmp_time - start_time )) <= 0 ) {
rc = 0; /* timed out */
ld->ld_errno = LDAP_TIMEOUT;
break;
}
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"wait4msg: %ld secs to go\n", (long) tv.tv_sec ));
#else
Debug( LDAP_DEBUG_TRACE, "wait4msg: %ld secs to go\n",
(long) tv.tv_sec, 0, 0 );
#endif
start_time = tmp_time;
}
}
return( rc );
}
static ber_tag_t
try_read1msg(
LDAP *ld,
ber_int_t msgid,
int all,
Sockbuf *sb,
LDAPConn *lc,
LDAPMessage **result )
{
BerElement *ber;
LDAPMessage *new, *l, *prev, *tmp;
ber_int_t id;
ber_tag_t tag;
ber_len_t len;
int foundit = 0;
LDAPRequest *lr, *tmplr;
BerElement tmpber;
int rc, refer_cnt, hadref, simple_request;
ber_int_t lderr;
/*
* v3ref = flag for V3 referral / search reference
* 0 = not a ref, 1 = sucessfully chased ref, -1 = pass ref to application
*/
int v3ref;
assert( ld != NULL );
assert( lc != NULL );
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ARGS, "read1msg: msgid %d, all %d\n",
msgid, all ));
#else
Debug( LDAP_DEBUG_TRACE, "read1msg: msgid %d, all %d\n", msgid, all, 0 );
#endif
if ( lc->lconn_ber == NULL ) {
lc->lconn_ber = ldap_alloc_ber_with_options(ld);
if( lc->lconn_ber == NULL ) {
return -1;
}
}
ber = lc->lconn_ber;
assert( LBER_VALID (ber) );
/* get the next message */
errno = 0;
#ifdef LDAP_CONNECTIONLESS
if ( LDAP_IS_UDP(ld) ) {
struct sockaddr from;
ber_int_sb_read(sb, &from, sizeof(struct sockaddr));
}
#endif
if ( (tag = ber_get_next( sb, &len, ber ))
!= LDAP_TAG_MESSAGE ) {
if ( tag == LBER_DEFAULT) {
#ifdef LDAP_DEBUG
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: ber_get_next failed\n" ));
#else
Debug( LDAP_DEBUG_CONNS,
"ber_get_next failed.\n", 0, 0, 0 );
#endif
#endif
#ifdef EWOULDBLOCK
if (errno==EWOULDBLOCK) return -2;
#endif
#ifdef EAGAIN
if (errno == EAGAIN) return -2;
#endif
ld->ld_errno = LDAP_SERVER_DOWN;
return -1;
}
ld->ld_errno = LDAP_LOCAL_ERROR;
return -1;
}
/*
* We read a complete message.
* The connection should no longer need this ber.
*/
lc->lconn_ber = NULL;
/* message id */
if ( ber_get_int( ber, &id ) == LBER_ERROR ) {
ber_free( ber, 1 );
ld->ld_errno = LDAP_DECODING_ERROR;
return( -1 );
}
/* if it's been abandoned, toss it */
if ( ldap_abandoned( ld, id ) ) {
ber_free( ber, 1 );
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: abandoned\n" ));
#else
Debug( LDAP_DEBUG_ANY, "abandoned\n", 0, 0, 0);
#endif
return( -2 ); /* continue looking */
}
if (( lr = ldap_find_request_by_msgid( ld, id )) == NULL ) {
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: no request for response with msgid %ld (tossing)\n",
(long) id ));
#else
Debug( LDAP_DEBUG_ANY,
"no request for response with msgid %ld (tossing)\n",
(long) id, 0, 0 );
#endif
ber_free( ber, 1 );
return( -2 ); /* continue looking */
}
#ifdef LDAP_CONNECTIONLESS
if (LDAP_IS_UDP(ld) && ld->ld_options.ldo_version == LDAP_VERSION2) {
struct berval blank;
ber_scanf(ber, "m{", &blank);
}
#endif
/* the message type */
if ( (tag = ber_peek_tag( ber, &len )) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free( ber, 1 );
return( -1 );
}
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: ldap_read: message type %s msgid %ld, original id %ld\n",
ldap_int_msgtype2str( tag ),
(long) lr->lr_msgid, (long) lr->lr_origid ));
#else
Debug( LDAP_DEBUG_TRACE,
"ldap_read: message type %s msgid %ld, original id %ld\n",
ldap_int_msgtype2str( tag ),
(long) lr->lr_msgid, (long) lr->lr_origid );
#endif
id = lr->lr_origid;
refer_cnt = 0;
hadref = simple_request = 0;
rc = -2; /* default is to keep looking (no response found) */
lr->lr_res_msgtype = tag;
/*
* This code figures out if we are going to chase a
* referral / search reference, or pass it back to the application
*/
v3ref = 0; /* Assume not a V3 search reference or referral */
if( (tag != LDAP_RES_SEARCH_ENTRY) && (ld->ld_version > LDAP_VERSION2) ) {
BerElement tmpber = *ber; /* struct copy */
char **refs = NULL;
if( tag == LDAP_RES_SEARCH_REFERENCE) {
/* This is a V3 search reference */
/* Assume we do not chase the reference, but pass it to application */
v3ref = -1;
if( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ||
(lr->lr_parent != NULL) )
{
/* Get the referral list */
if ( ber_scanf( &tmpber, "{v}", &refs ) == LBER_ERROR ) {
rc = LDAP_DECODING_ERROR;
} else {
/* Note: refs arrary is freed by ldap_chase_v3referrals */
refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
1, &lr->lr_res_error, &hadref );
if ( refer_cnt > 0 ) { /* sucessfully chased reference */
/* If haven't got end search, set chasing referrals */
if( lr->lr_status != LDAP_REQST_COMPLETED) {
lr->lr_status = LDAP_REQST_CHASINGREFS;
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: search ref chased,"
"mark request chasing refs, id = %d\n",
lr->lr_msgid ));
#else
Debug( LDAP_DEBUG_TRACE,
"read1msg: search ref chased, mark request chasing refs, id = %d\n",
lr->lr_msgid, 0, 0);
#endif
}
v3ref = 1; /* We sucessfully chased the reference */
}
}
}
} else {
/* Check for V3 referral */
ber_len_t len;
if ( ber_scanf( &tmpber, "{iaa",/*}*/ &lderr,
&lr->lr_res_matched, &lr->lr_res_error )
!= LBER_ERROR ) {
/* Check if V3 referral */
if( ber_peek_tag( &tmpber, &len) == LDAP_TAG_REFERRAL ) {
/* We have a V3 referral, assume we cannot chase it */
v3ref = -1;
if( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS)
|| (lr->lr_parent != NULL) )
{
v3ref = -1; /* Assume referral not chased and return it to app */
/* Get the referral list */
if( ber_scanf( &tmpber, "{v}", &refs) == LBER_ERROR) {
rc = LDAP_DECODING_ERROR;
lr->lr_status = LDAP_REQST_COMPLETED;
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: referral decode error,"
"mark request completed, id = %d\n",
lr->lr_msgid ));
#else
Debug( LDAP_DEBUG_TRACE,
"read1msg: referral decode error, mark request completed, id = %d\n",
lr->lr_msgid, 0, 0);
#endif
} else {
/* Chase the referral
* Note: refs arrary is freed by ldap_chase_v3referrals
*/
refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
0, &lr->lr_res_error, &hadref );
lr->lr_status = LDAP_REQST_COMPLETED;
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: referral chased,"
"mark request completed, id = %d\n",
lr->lr_msgid ));
#else
Debug( LDAP_DEBUG_TRACE,
"read1msg: referral chased, mark request completed, id = %d\n",
lr->lr_msgid, 0, 0);
#endif
if( refer_cnt > 0) {
v3ref = 1; /* Referral successfully chased */
}
}
}
}
if( lr->lr_res_matched != NULL ) {
LDAP_FREE( lr->lr_res_matched );
lr->lr_res_matched = NULL;
}
if( lr->lr_res_error != NULL ) {
LDAP_FREE( lr->lr_res_error );
lr->lr_res_error = NULL;
}
}
}
}
/* All results that just return a status, i.e. don't return data
* go through the following code. This code also chases V2 referrals
* and checks if all referrals have been chased.
*/
if ( (tag != LDAP_RES_SEARCH_ENTRY) && (v3ref > -1) ) {
/* For a v3 search referral/reference, only come here if already chased it */
if ( ld->ld_version >= LDAP_VERSION2 &&
( lr->lr_parent != NULL ||
LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ) )
{
tmpber = *ber; /* struct copy */
if ( v3ref == 1 ) {
/* V3 search reference or V3 referral successfully chased */
refer_cnt = 0;
} else if ( ber_scanf( &tmpber, "{iaa}", &lderr,
&lr->lr_res_matched, &lr->lr_res_error )
!= LBER_ERROR ) {
if ( lderr != LDAP_SUCCESS ) {
/* referrals are in error string */
refer_cnt = ldap_chase_referrals( ld, lr,
&lr->lr_res_error, -1, &hadref );
lr->lr_status = LDAP_REQST_COMPLETED;
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: V2 referral chased,"
"mark request completed, id = %d\n",
lr->lr_msgid ));
#else
Debug( LDAP_DEBUG_TRACE,
"read1msg: V2 referral chased, mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
#endif
}
/* save errno, message, and matched string */
if ( !hadref || lr->lr_res_error == NULL ) {
lr->lr_res_errno = ( lderr ==
LDAP_PARTIAL_RESULTS ) ? LDAP_SUCCESS
: lderr;
} else if ( ld->ld_errno != LDAP_SUCCESS ) {
lr->lr_res_errno = ld->ld_errno;
} else {
lr->lr_res_errno = LDAP_PARTIAL_RESULTS;
}
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: new result: res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
lr->lr_res_matched ? lr->lr_res_matched : "" ));
#else
Debug( LDAP_DEBUG_TRACE,
"new result: res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
lr->lr_res_matched ? lr->lr_res_matched : "" );
#endif
}
}
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: %d new referrals\n", refer_cnt ));
#else
Debug( LDAP_DEBUG_TRACE,
"read1msg: %d new referrals\n", refer_cnt, 0, 0 );
#endif
if ( refer_cnt != 0 ) { /* chasing referrals */
ber_free( ber, 1 );
ber = NULL;
if ( refer_cnt < 0 ) {
return( -1 ); /* fatal error */
}
lr->lr_res_errno = LDAP_SUCCESS; /* sucessfully chased referral */
} else {
if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
/* request without any referrals */
simple_request = ( hadref ? 0 : 1 );
} else {
/* request with referrals or child request */
ber_free( ber, 1 );
ber = NULL;
}
lr->lr_status = LDAP_REQST_COMPLETED; /* declare this request done */
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: mark request completed, id = %d\n", lr->lr_msgid ));
#else
Debug( LDAP_DEBUG_TRACE,
"read1msg: mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
#endif
while ( lr->lr_parent != NULL ) {
merge_error_info( ld, lr->lr_parent, lr );
lr = lr->lr_parent;
if ( --lr->lr_outrefcnt > 0 ) {
break; /* not completely done yet */
}
}
/* Check if all requests are finished, lr is now parent */
tmplr = lr;
if (tmplr->lr_status == LDAP_REQST_COMPLETED) {
for(tmplr=lr->lr_child; tmplr != NULL; tmplr=tmplr->lr_refnext) {
if( tmplr->lr_status != LDAP_REQST_COMPLETED) {
break;
}
}
}
/* This is the parent request if the request has referrals */
if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL && tmplr == NULL ) {
id = lr->lr_msgid;
tag = lr->lr_res_msgtype;
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: request %ld done\n", (long) id ));
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: res_errno: %d,res_error: <%s>, res_matched: <%s>\n",
lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
lr->lr_res_matched ? lr->lr_res_matched : "" ));
#else
Debug( LDAP_DEBUG_ANY, "request %ld done\n",
(long) id, 0, 0 );
Debug( LDAP_DEBUG_TRACE,
"res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
lr->lr_res_matched ? lr->lr_res_matched : "" );
#endif
if ( !simple_request ) {
ber_free( ber, 1 );
ber = NULL;
if ( build_result_ber( ld, &ber, lr )
== LBER_ERROR ) {
rc = -1; /* fatal error */
}
}
ldap_free_request( ld, lr );
}
if ( lc != NULL ) {
ldap_free_connection( ld, lc, 0, 1 );
}
}
}
if ( ber == NULL ) {
return( rc );
}
/* make a new ldap message */
if ( (new = (LDAPMessage *) LDAP_CALLOC( 1, sizeof(LDAPMessage) ))
== NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
return( -1 );
}
new->lm_msgid = (int)id;
new->lm_msgtype = tag;
new->lm_ber = ber;
#ifndef LDAP_NOCACHE
if ( ld->ld_cache != NULL ) {
ldap_add_result_to_cache( ld, new );
}
#endif /* LDAP_NOCACHE */
/* is this the one we're looking for? */
if ( msgid == LDAP_RES_ANY || id == msgid ) {
if ( all == LDAP_MSG_ONE
|| (new->lm_msgtype != LDAP_RES_SEARCH_RESULT
&& new->lm_msgtype != LDAP_RES_SEARCH_ENTRY
&& new->lm_msgtype != LDAP_RES_SEARCH_REFERENCE) ) {
*result = new;
ld->ld_errno = LDAP_SUCCESS;
return( tag );
} else if ( new->lm_msgtype == LDAP_RES_SEARCH_RESULT) {
foundit = 1; /* return the chain later */
}
}
/*
* if not, we must add it to the list of responses. if
* the msgid is already there, it must be part of an existing
* search response.
*/
prev = NULL;
for ( l = ld->ld_responses; l != NULL; l = l->lm_next ) {
if ( l->lm_msgid == new->lm_msgid )
break;
prev = l;
}
/* not part of an existing search response */
if ( l == NULL ) {
if ( foundit ) {
*result = new;
ld->ld_errno = LDAP_SUCCESS;
return( tag );
}
new->lm_next = ld->ld_responses;
ld->ld_responses = new;
return( -2 ); /* continue looking */
}
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: adding response id %ld type %ld\n",
(long) new->lm_msgid, (long) new->lm_msgtype ));
#else
Debug( LDAP_DEBUG_TRACE, "adding response id %ld type %ld:\n",
(long) new->lm_msgid, (long) new->lm_msgtype, 0 );
#endif
/* part of a search response - add to end of list of entries */
for ( tmp = l; (tmp->lm_chain != NULL) &&
((tmp->lm_chain->lm_msgtype == LDAP_RES_SEARCH_ENTRY) ||
(tmp->lm_chain->lm_msgtype == LDAP_RES_SEARCH_REFERENCE) ||
(tmp->lm_chain->lm_msgtype == LDAP_RES_EXTENDED_PARTIAL ));
tmp = tmp->lm_chain )
; /* NULL */
tmp->lm_chain = new;
/* return the whole chain if that's what we were looking for */
if ( foundit ) {
if ( prev == NULL )
ld->ld_responses = l->lm_next;
else
prev->lm_next = l->lm_next;
*result = l;
ld->ld_errno = LDAP_SUCCESS;
#ifdef LDAP_WORLD_P16
/*
* XXX questionable fix; see text for [P16] on
* http://www.critical-angle.com/ldapworld/patch/
*
* inclusion of this patch causes searchs to hang on
* multiple platforms
*/
return( l->lm_msgtype );
#else /* LDAP_WORLD_P16 */
return( tag );
#endif /* !LDAP_WORLD_P16 */
}
return( -2 ); /* continue looking */
}
static ber_tag_t
build_result_ber( LDAP *ld, BerElement **bp, LDAPRequest *lr )
{
ber_len_t len;
ber_tag_t tag;
ber_int_t along;
BerElement *ber;
*bp = NULL;
ber = ldap_alloc_ber_with_options( ld );
if( ber == NULL ) {
ld->ld_errno = LDAP_NO_MEMORY;
return LBER_ERROR;
}
if ( ber_printf( ber, "{it{ess}}", lr->lr_msgid,
lr->lr_res_msgtype, lr->lr_res_errno,
lr->lr_res_matched ? lr->lr_res_matched : "",
lr->lr_res_error ? lr->lr_res_error : "" ) == -1 ) {
ld->ld_errno = LDAP_ENCODING_ERROR;
ber_free(ber, 1);
return( LBER_ERROR );
}
ber_reset( ber, 1 );
if ( ber_skip_tag( ber, &len ) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free(ber, 1);
return( LBER_ERROR );
}
if ( ber_get_int( ber, &along ) == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free(ber, 1);
return( LBER_ERROR );
}
tag = ber_peek_tag( ber, &len );
if ( tag == LBER_ERROR ) {
ld->ld_errno = LDAP_DECODING_ERROR;
ber_free(ber, 1);
return( LBER_ERROR );
}
*bp = ber;
return tag;
}
static void
merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
{
/*
* Merge error information in "lr" with "parentr" error code and string.
*/
if ( lr->lr_res_errno == LDAP_PARTIAL_RESULTS ) {
parentr->lr_res_errno = lr->lr_res_errno;
if ( lr->lr_res_error != NULL ) {
(void)ldap_append_referral( ld, &parentr->lr_res_error,
lr->lr_res_error );
}
} else if ( lr->lr_res_errno != LDAP_SUCCESS &&
parentr->lr_res_errno == LDAP_SUCCESS ) {
parentr->lr_res_errno = lr->lr_res_errno;
if ( parentr->lr_res_error != NULL ) {
LDAP_FREE( parentr->lr_res_error );
}
parentr->lr_res_error = lr->lr_res_error;
lr->lr_res_error = NULL;
if ( LDAP_NAME_ERROR( lr->lr_res_errno )) {
if ( parentr->lr_res_matched != NULL ) {
LDAP_FREE( parentr->lr_res_matched );
}
parentr->lr_res_matched = lr->lr_res_matched;
lr->lr_res_matched = NULL;
}
}
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_DETAIL1,
"read1msg: merged parent (id %d) error info: result errno %d, "
"error <%s>, matched <%s>\n", parentr->lr_msgid,
parentr->lr_res_errno, parentr->lr_res_error ?
parentr->lr_res_error : "", parentr->lr_res_matched ?
parentr->lr_res_matched : "" ));
#else
Debug( LDAP_DEBUG_TRACE, "merged parent (id %d) error info: ",
parentr->lr_msgid, 0, 0 );
Debug( LDAP_DEBUG_TRACE, "result errno %d, error <%s>, matched <%s>\n",
parentr->lr_res_errno, parentr->lr_res_error ?
parentr->lr_res_error : "", parentr->lr_res_matched ?
parentr->lr_res_matched : "" );
#endif
}
int
ldap_msgtype( LDAPMessage *lm )
{
assert( lm != NULL );
return ( lm != NULL ) ? lm->lm_msgtype : -1;
}
int
ldap_msgid( LDAPMessage *lm )
{
assert( lm != NULL );
return ( lm != NULL ) ? lm->lm_msgid : -1;
}
char * ldap_int_msgtype2str( ber_tag_t tag )
{
switch( tag ) {
case LDAP_RES_ADD: return "add";
case LDAP_RES_BIND: return "bind";
case LDAP_RES_COMPARE: return "compare";
case LDAP_RES_DELETE: return "delete";
case LDAP_RES_EXTENDED: return "extended-result";
case LDAP_RES_EXTENDED_PARTIAL: return "extended-partial";
case LDAP_RES_MODIFY: return "modify";
case LDAP_RES_RENAME: return "rename";
case LDAP_RES_SEARCH_ENTRY: return "search-entry";
case LDAP_RES_SEARCH_REFERENCE: return "search-reference";
case LDAP_RES_SEARCH_RESULT: return "search-result";
}
return "unknown";
}
int
ldap_msgfree( LDAPMessage *lm )
{
LDAPMessage *next;
int type = 0;
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ENTRY, "ldap_msgfree\n" ));
#else
Debug( LDAP_DEBUG_TRACE, "ldap_msgfree\n", 0, 0, 0 );
#endif
for ( ; lm != NULL; lm = next ) {
next = lm->lm_chain;
type = lm->lm_msgtype;
ber_free( lm->lm_ber, 1 );
LDAP_FREE( (char *) lm );
}
return( type );
}
/*
* ldap_msgdelete - delete a message. It returns:
* 0 if the entire message was deleted
* -1 if the message was not found, or only part of it was found
*/
int
ldap_msgdelete( LDAP *ld, int msgid )
{
LDAPMessage *lm, *prev;
assert( ld != NULL );
#ifdef NEW_LOGGING
LDAP_LOG (( "result", LDAP_LEVEL_ENTRY, "ldap_msgdelete\n" ));
#else
Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete\n", 0, 0, 0 );
#endif
prev = NULL;
for ( lm = ld->ld_responses; lm != NULL; lm = lm->lm_next ) {
if ( lm->lm_msgid == msgid )
break;
prev = lm;
}
if ( lm == NULL )
return( -1 );
if ( prev == NULL )
ld->ld_responses = lm->lm_next;
else
prev->lm_next = lm->lm_next;
if ( ldap_msgfree( lm ) == LDAP_RES_SEARCH_ENTRY )
return( -1 );
return( 0 );
}
/*
* return 1 if message msgid is waiting to be abandoned, 0 otherwise
*/
static int
ldap_abandoned( LDAP *ld, ber_int_t msgid )
{
int i;
if ( ld->ld_abandoned == NULL )
return( 0 );
for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
if ( ld->ld_abandoned[i] == msgid )
return( 1 );
return( 0 );
}
static int
ldap_mark_abandoned( LDAP *ld, ber_int_t msgid )
{
int i;
if ( ld->ld_abandoned == NULL )
return( -1 );
for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
if ( ld->ld_abandoned[i] == msgid )
break;
if ( ld->ld_abandoned[i] == -1 )
return( -1 );
for ( ; ld->ld_abandoned[i] != -1; i++ ) {
ld->ld_abandoned[i] = ld->ld_abandoned[i + 1];
}
return( 0 );
}
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