Commit da74650a authored by Kurt Zeilenga's avatar Kurt Zeilenga
Browse files

Also eliminated by dnssrv referral.c code

parent 5e04ed8c
/* add.c - DNS SRV backend request handler */
/* $OpenLDAP$ */
/*
* Copyright 2000 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-dnssrv.h"
int
dnssrv_back_request(
Backend *be,
Connection *conn,
Operation *op,
const char *dn,
const char *ndn,
int scope, Filter *filter,
char **attrs, int attrsonly )
{
int i;
int rc;
char *domain = NULL;
char *hostlist = NULL;
char **hosts = NULL;
struct berval **urls = NULL;
int manageDSAit = get_manageDSAit( op );
if( ndn == NULL || *ndn == '\0' ) {
send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
NULL, "operation upon null (empty) DN disallowed",
NULL, NULL );
goto done;
}
if( ldap_dn2domain( dn, &domain ) ) {
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 == NULL ? "" : dn,
domain == NULL ? "" : 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 = 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 = ch_malloc( sizeof( struct berval ) );
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_bvecadd( &urls, url ) < 0 ) {
ber_bvfree( url );
send_ldap_result( conn, op, LDAP_OTHER,
NULL, "problem processing DNS SRV records for DN",
NULL, NULL );
goto done;
}
}
Statslog( LDAP_DEBUG_STATS,
"conn=%ld op=%d DNSSRV p=%d dn=\"%s\" url=\"%s\"\n",
op->o_connid, op->o_opid, op->o_protocol, dn, urls[0]->bv_val );
Debug( LDAP_DEBUG_TRACE, "DNSSRV: %sdn=\"%s\" -> url=\"%s\"\n",
manageDSAit ? "ManageDSAit " : "",
dn == NULL ? "" : dn,
urls[0]->bv_val );
if( manageDSAit ) {
char *refdn, *nrefdn;
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;
}
nrefdn = ch_strdup( refdn );
dn_normalize(nrefdn);
if( strcmp( nrefdn, ndn ) != 0 ) {
/* requested dn is subordinate */
Debug( LDAP_DEBUG_TRACE,
"DNSSRV: dn=\"%s\" subordindate to refdn=\"%s\"\n",
dn == NULL ? "" : dn,
refdn == NULL ? "" : refdn,
NULL );
send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT,
refdn, NULL,
NULL, NULL );
} else if( op->o_tag != LDAP_REQ_SEARCH ) {
send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
dn, "DNS SRV ManageDSAIT control disallowed",
NULL, NULL );
} else if ( scope != LDAP_SCOPE_ONELEVEL ) {
struct berval val;
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 );
e->e_ndn = strdup( ndn );
e->e_attrs = NULL;
e->e_private = NULL;
vals[0] = &val;
vals[1] = NULL;
val.bv_val = "top";
val.bv_len = sizeof("top")-1;
attr_merge( e, ad_objectClass, vals );
val.bv_val = "referral";
val.bv_len = sizeof("referral")-1;
attr_merge( e, ad_objectClass, vals );
val.bv_val = "extensibleObject";
val.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;
val.bv_val = ch_strdup( domain );
p = strchr( val.bv_val, '.' );
if( p == val.bv_val ) {
val.bv_val[1] = '\0';
} else if ( p != NULL ) {
*p = '\0';
}
val.bv_len = strlen(val.bv_val);
attr_merge( e, ad, vals );
ad_free( ad, 1 );
}
}
{
AttributeDescription *ad = NULL;
const char *text;
rc = slap_str2ad( "associatedDomain", &ad, &text );
if( rc == LDAP_SUCCESS ) {
val.bv_val = domain;
val.bv_len = strlen(domain);
attr_merge( e, ad, vals );
ad_free( ad, 1 );
}
}
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 );
} else {
send_ldap_result( conn, op, LDAP_SUCCESS,
NULL, NULL, NULL, NULL );
}
free( refdn );
free( nrefdn );
} else {
send_ldap_result( conn, op, LDAP_REFERRAL,
NULL, "DNS SRV generated referrals", urls, NULL );
}
done:
if( domain != NULL ) ch_free( domain );
if( hostlist != NULL ) ch_free( hostlist );
if( hosts != NULL ) charray_free( hosts );
if( urls != NULL ) ber_bvecfree( urls );
return 0;
}
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