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/* search.c - DNS SRV backend search function */
/* $OpenLDAP: pkg/ldap/servers/slapd/back-dnssrv/search.c,v 1.18.2.4 2003/03/03 17:10:09 kurt Exp $ */
/*
* Copyright 2000-2003 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include "slap.h"
#include "external.h"
int
dnssrv_back_search(
Backend *be,
Connection *conn,
Operation *op,
struct berval *dn,
struct berval *ndn,
int scope,
int deref,
int size,
int time,
Filter *filter,
struct berval *filterstr,
AttributeName *attrs,
int attrsonly )
{
int i;
int rc;
char *domain = NULL;
char *hostlist = NULL;
char **hosts = NULL;
char *refdn;
struct berval nrefdn = { 0, NULL };
BerVarray urls = NULL;
assert( get_manageDSAit( op ) );
if( ldap_dn2domain( dn->bv_val, &domain ) || domain == NULL ) {
send_ldap_result( conn, op, LDAP_REFERRAL,
NULL, NULL, default_referral, NULL );
goto done;
}
Debug( LDAP_DEBUG_TRACE, "DNSSRV: dn=\"%s\" -> domain=\"%s\"\n",
dn->bv_len ? dn->bv_val : "", domain, 0 );
if( ( rc = ldap_domain2hostlist( domain, &hostlist ) ) ) {
Debug( LDAP_DEBUG_TRACE, "DNSSRV: domain2hostlist returned %d\n",
rc, 0, 0 );
send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
NULL, "no DNS SRV RR available for DN", NULL, NULL );
goto done;
}
hosts = ldap_str2charray( hostlist, " " );
if( hosts == NULL ) {
Debug( LDAP_DEBUG_TRACE, "DNSSRV: str2charrary error\n", 0, 0, 0 );
send_ldap_result( conn, op, LDAP_OTHER,
NULL, "problem processing DNS SRV records for DN", NULL, NULL );
goto done;
}
for( i=0; hosts[i] != NULL; i++) {
struct berval url;
url.bv_len = sizeof("ldap://")-1 + strlen(hosts[i]);
url.bv_val = ch_malloc( url.bv_len + 1 );
strcpy( url.bv_val, "ldap://" );
strcpy( &url.bv_val[sizeof("ldap://")-1], hosts[i] );
if( ber_bvarray_add( &urls, &url ) < 0 ) {
free( url.bv_val );
send_ldap_result( conn, op, LDAP_OTHER,
NULL, "problem processing DNS SRV records for DN",
NULL, NULL );
goto done;
}
}
Statslog( LDAP_DEBUG_STATS,
"conn=%lu op=%lu DNSSRV p=%d dn=\"%s\" url=\"%s\"\n",
op->o_connid, op->o_opid, op->o_protocol,
dn->bv_len ? dn->bv_val : "", urls[0].bv_val );
Debug( LDAP_DEBUG_TRACE,
"DNSSRV: ManageDSAit scope=%d dn=\"%s\" -> url=\"%s\"\n",
scope,
dn->bv_len ? dn->bv_val : "",
urls[0].bv_val );
rc = ldap_domain2dn(domain, &refdn);
if( rc != LDAP_SUCCESS ) {
send_ldap_result( conn, op, LDAP_OTHER,
NULL, "DNS SRV problem processing manageDSAit control",
NULL, NULL );
goto done;
} else {
struct berval bv;
bv.bv_val = refdn;
bv.bv_len = strlen( refdn );
rc = dnNormalize2( NULL, &bv, &nrefdn );
if( rc != LDAP_SUCCESS ) {
send_ldap_result( conn, op, LDAP_OTHER,
NULL, "DNS SRV problem processing manageDSAit control",
NULL, NULL );
goto done;
}
}
if( !dn_match( &nrefdn, ndn ) ) {
/* requested dn is subordinate */
Debug( LDAP_DEBUG_TRACE,
"DNSSRV: dn=\"%s\" subordindate to refdn=\"%s\"\n",
dn->bv_len ? dn->bv_val : "",
refdn == NULL ? "" : refdn,
NULL );
send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
refdn, NULL,
NULL, NULL );
} else if ( scope == LDAP_SCOPE_ONELEVEL ) {
send_ldap_result( conn, op, LDAP_SUCCESS,
NULL, NULL, NULL, NULL );
} else {
struct berval vals[2];
Entry *e = ch_calloc( 1, sizeof(Entry) );
AttributeDescription *ad_objectClass
= slap_schema.si_ad_objectClass;
AttributeDescription *ad_ref = slap_schema.si_ad_ref;
e->e_dn = strdup( dn->bv_val );
e->e_name.bv_len = dn->bv_len;
e->e_ndn = strdup( ndn->bv_val );
e->e_nname.bv_len = ndn->bv_len;
e->e_attrs = NULL;
e->e_private = NULL;
vals[1].bv_val = NULL;
vals[0].bv_val = "top";
vals[0].bv_len = sizeof("top")-1;
attr_merge( e, ad_objectClass, vals );
vals[0].bv_val = "referral";
vals[0].bv_len = sizeof("referral")-1;
attr_merge( e, ad_objectClass, vals );
vals[0].bv_val = "extensibleObject";
vals[0].bv_len = sizeof("extensibleObject")-1;
attr_merge( e, ad_objectClass, vals );
{
AttributeDescription *ad = NULL;
const char *text;
rc = slap_str2ad( "dc", &ad, &text );
if( rc == LDAP_SUCCESS ) {
char *p;
vals[0].bv_val = ch_strdup( domain );
p = strchr( vals[0].bv_val, '.' );
if( p == vals[0].bv_val ) {
vals[0].bv_val[1] = '\0';
} else if ( p != NULL ) {
*p = '\0';
}
vals[0].bv_len = strlen(vals[0].bv_val);
attr_merge( e, ad, vals );
}
}
{
AttributeDescription *ad = NULL;
const char *text;
rc = slap_str2ad( "associatedDomain", &ad, &text );
if( rc == LDAP_SUCCESS ) {
vals[0].bv_val = domain;
vals[0].bv_len = strlen(domain);
attr_merge( e, ad, vals );
}
}
attr_merge( e, ad_ref, urls );
rc = test_filter( be, conn, op, e, filter );
if( rc == LDAP_COMPARE_TRUE ) {
send_search_entry( be, conn, op,
e, attrs, attrsonly, NULL );
}
entry_free( e );
send_ldap_result( conn, op, LDAP_SUCCESS,
NULL, NULL, NULL, NULL );
}
if ( refdn ) free( refdn );
if ( nrefdn.bv_val ) free( nrefdn.bv_val );
done:
if( domain != NULL ) ch_free( domain );
if( hostlist != NULL ) ch_free( hostlist );
if( hosts != NULL ) ldap_charray_free( hosts );
if( urls != NULL ) ber_bvarray_free( urls );
return 0;
}
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