/* root_dse.c - Provides the Root DSA-Specific Entry */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software .
*
* Copyright 1999-2006 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
* .
*/
#include "portable.h"
#include
#include
#include "slap.h"
#include
#include "lber_pvt.h"
#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
#endif
static struct berval builtin_supportedFeatures[] = {
BER_BVC(LDAP_FEATURE_MODIFY_INCREMENT), /* Modify/increment */
BER_BVC(LDAP_FEATURE_ALL_OP_ATTRS), /* All Op Attrs (+) */
BER_BVC(LDAP_FEATURE_OBJECTCLASS_ATTRS), /* OCs in Attrs List (@class) */
BER_BVC(LDAP_FEATURE_ABSOLUTE_FILTERS), /* (&) and (|) search filters */
BER_BVC(LDAP_FEATURE_LANGUAGE_TAG_OPTIONS), /* Language Tag Options */
BER_BVC(LDAP_FEATURE_LANGUAGE_RANGE_OPTIONS), /* Language Range Options */
#ifdef LDAP_DEVEL
BER_BVC(LDAP_FEATURE_SUBORDINATE_SCOPE), /* "children" search scope */
#endif
BER_BVNULL
};
static struct berval *supportedFeatures;
static Entry *usr_attr = NULL;
/*
* allow modules to register functions that muck with the root DSE entry
*/
typedef struct entry_info_t {
SLAP_ENTRY_INFO_FN func;
void *arg;
struct entry_info_t *next;
} entry_info_t;
static entry_info_t *extra_info;
int
entry_info_register( SLAP_ENTRY_INFO_FN func, void *arg )
{
entry_info_t *ei = ch_calloc( 1, sizeof( entry_info_t ) );
ei->func = func;
ei->arg = arg;
ei->next = extra_info;
extra_info = ei;
return 0;
}
int
entry_info_unregister( SLAP_ENTRY_INFO_FN func, void *arg )
{
entry_info_t **eip;
for ( eip = &extra_info; *eip != NULL; eip = &(*eip)->next ) {
if ( (*eip)->func == func && (*eip)->arg == arg ) {
entry_info_t *ei = *eip;
*eip = ei->next;
ch_free( ei );
return 0;
}
}
return -1;
}
void
entry_info_destroy( void )
{
entry_info_t **eip;
for ( eip = &extra_info; *eip != NULL; ) {
entry_info_t *ei = *eip;
eip = &(*eip)->next;
ch_free( ei );
}
}
/*
* Allow modules to register supported features
*/
static int
supported_feature_init( void )
{
int i;
if ( supportedFeatures != NULL ) {
return 0;
}
for ( i = 0; !BER_BVISNULL( &builtin_supportedFeatures[ i ] ); i++ )
;
supportedFeatures = ch_calloc( sizeof( struct berval ), i + 1 );
if ( supportedFeatures == NULL ) {
return -1;
}
for ( i = 0; !BER_BVISNULL( &builtin_supportedFeatures[ i ] ); i++ ) {
ber_dupbv( &supportedFeatures[ i ], &builtin_supportedFeatures[ i ] );
}
BER_BVZERO( &supportedFeatures[ i ] );
return 0;
}
int
supported_feature_destroy( void )
{
int i;
if ( supportedFeatures == NULL ) {
return 0;
}
for ( i = 0; !BER_BVISNULL( &supportedFeatures[ i ] ); i++ ) {
ch_free( supportedFeatures[ i ].bv_val );
}
ch_free( supportedFeatures );
supportedFeatures = NULL;
return 0;
}
int
supported_feature_load( struct berval *f )
{
struct berval *tmp;
int i;
supported_feature_init();
for ( i = 0; !BER_BVISNULL( &supportedFeatures[ i ] ); i++ )
;
tmp = ch_realloc( supportedFeatures, sizeof( struct berval ) * ( i + 2 ) );
if ( tmp == NULL ) {
return -1;
}
supportedFeatures = tmp;
ber_dupbv( &supportedFeatures[ i ], f );
BER_BVZERO( &supportedFeatures[ i + 1 ] );
return 0;
}
int
root_dse_info(
Connection *conn,
Entry **entry,
const char **text )
{
Entry *e;
struct berval val;
#ifdef LDAP_SLAPI
struct berval *bv;
#endif
int i, j;
char ** supportedSASLMechanisms;
BackendDB *be;
AttributeDescription *ad_structuralObjectClass
= slap_schema.si_ad_structuralObjectClass;
AttributeDescription *ad_objectClass
= slap_schema.si_ad_objectClass;
AttributeDescription *ad_namingContexts
= slap_schema.si_ad_namingContexts;
#ifdef LDAP_SLAPI
AttributeDescription *ad_supportedExtension
= slap_schema.si_ad_supportedExtension;
#endif
AttributeDescription *ad_supportedLDAPVersion
= slap_schema.si_ad_supportedLDAPVersion;
AttributeDescription *ad_supportedSASLMechanisms
= slap_schema.si_ad_supportedSASLMechanisms;
AttributeDescription *ad_supportedFeatures
= slap_schema.si_ad_supportedFeatures;
AttributeDescription *ad_monitorContext
= slap_schema.si_ad_monitorContext;
AttributeDescription *ad_configContext
= slap_schema.si_ad_configContext;
AttributeDescription *ad_ref
= slap_schema.si_ad_ref;
e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
if( e == NULL ) {
Debug( LDAP_DEBUG_ANY,
"root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
return LDAP_OTHER;
}
e->e_attrs = NULL;
e->e_name.bv_val = ch_strdup( LDAP_ROOT_DSE );
e->e_name.bv_len = sizeof( LDAP_ROOT_DSE )-1;
e->e_nname.bv_val = ch_strdup( LDAP_ROOT_DSE );
e->e_nname.bv_len = sizeof( LDAP_ROOT_DSE )-1;
/* the DN is an empty string so no pretty/normalization is needed */
assert( !e->e_name.bv_len );
assert( !e->e_nname.bv_len );
e->e_private = NULL;
/* FIXME: is this really needed? */
BER_BVSTR( &val, "top" );
if( attr_merge_one( e, ad_objectClass, &val, NULL ) ) {
fail:
entry_free( e );
return LDAP_OTHER;
}
BER_BVSTR( &val, "OpenLDAProotDSE" );
if( attr_merge_one( e, ad_objectClass, &val, NULL ) ) {
goto fail;
}
if( attr_merge_one( e, ad_structuralObjectClass, &val, NULL ) ) {
goto fail;
}
LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
if ( be->be_suffix == NULL
|| be->be_nsuffix == NULL ) {
/* no suffix! */
continue;
}
if ( SLAP_MONITOR( be )) {
if( attr_merge_one( e, ad_monitorContext,
&be->be_suffix[0],
&be->be_nsuffix[0] ) )
{
goto fail;
}
continue;
}
if ( SLAP_CONFIG( be )) {
if( attr_merge_one( e, ad_configContext,
&be->be_suffix[0],
& be->be_nsuffix[0] ) )
{
goto fail;
}
continue;
}
if ( SLAP_GLUE_SUBORDINATE( be ) && !SLAP_GLUE_ADVERTISE( be ) ) {
continue;
}
for ( j = 0; be->be_suffix[j].bv_val != NULL; j++ ) {
if( attr_merge_one( e, ad_namingContexts,
&be->be_suffix[j],
&be->be_nsuffix[0] ) )
{
goto fail;
}
}
}
/* altServer unsupported */
/* supportedControl */
if ( controls_root_dse_info( e ) != 0 ) {
goto fail;
}
/* supportedExtension */
if ( exop_root_dse_info( e ) != 0 ) {
goto fail;
}
#ifdef LDAP_SLAPI
/* netscape supportedExtension */
for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
if( attr_merge_one( e, ad_supportedExtension, bv, NULL ) ) {
goto fail;
}
}
#endif /* LDAP_SLAPI */
/* supportedFeatures */
if ( supportedFeatures == NULL ) {
supported_feature_init();
}
if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
goto fail;
}
/* supportedLDAPVersion */
/* don't publish version 2 as we don't really support it
* (even when configured to accept version 2 Bind requests)
* and the value would never be used by true LDAPv2 (or LDAPv3)
* clients.
*/
for ( i=LDAP_VERSION3; i<=LDAP_VERSION_MAX; i++ ) {
char buf[sizeof("255")];
snprintf(buf, sizeof buf, "%d", i);
val.bv_val = buf;
val.bv_len = strlen( val.bv_val );
if( attr_merge_one( e, ad_supportedLDAPVersion, &val, NULL ) ) {
goto fail;
}
}
/* supportedSASLMechanism */
supportedSASLMechanisms = slap_sasl_mechs( conn );
if( supportedSASLMechanisms != NULL ) {
for ( i=0; supportedSASLMechanisms[i] != NULL; i++ ) {
val.bv_val = supportedSASLMechanisms[i];
val.bv_len = strlen( val.bv_val );
if( attr_merge_one( e, ad_supportedSASLMechanisms, &val, NULL ) ) {
ldap_charray_free( supportedSASLMechanisms );
goto fail;
}
}
ldap_charray_free( supportedSASLMechanisms );
}
if ( default_referral != NULL ) {
if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
goto fail;
}
}
if( usr_attr != NULL) {
Attribute *a;
for( a = usr_attr->e_attrs; a != NULL; a = a->a_next ) {
if( attr_merge( e, a->a_desc, a->a_vals,
(a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
{
goto fail;
}
}
}
if ( extra_info ) {
entry_info_t *ei = extra_info;
for ( ; ei; ei = ei->next ) {
ei->func( ei->arg, e );
}
}
*entry = e;
return LDAP_SUCCESS;
}
/*
* Read the entries specified in fname and merge the attributes
* to the user defined rootDSE. Note thaat if we find any errors
* what so ever, we will discard the entire entries, print an
* error message and return.
*/
int read_root_dse_file( const char *fname )
{
struct LDIFFP *fp;
int rc = 0, lineno = 0, lmax = 0;
char *buf = NULL;
if ( (fp = ldif_open( fname, "r" )) == NULL ) {
Debug( LDAP_DEBUG_ANY,
"could not open rootdse attr file \"%s\" - absolute path?\n",
fname, 0, 0 );
perror( fname );
return EXIT_FAILURE;
}
usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
if( usr_attr == NULL ) {
Debug( LDAP_DEBUG_ANY,
"read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
ldif_close( fp );
return LDAP_OTHER;
}
usr_attr->e_attrs = NULL;
while( ldif_read_record( fp, &lineno, &buf, &lmax ) ) {
Entry *e = str2entry( buf );
Attribute *a;
if( e == NULL ) {
fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
lineno );
rc = EXIT_FAILURE;
break;
}
/* make sure the DN is the empty DN */
if( e->e_nname.bv_len ) {
fprintf( stderr,
"root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
e->e_dn, lineno );
entry_free( e );
rc = EXIT_FAILURE;
break;
}
/*
* we found a valid entry, so walk thru all the attributes in the
* entry, and add each attribute type and description to the
* usr_attr entry
*/
for(a = e->e_attrs; a != NULL; a = a->a_next) {
if( attr_merge( usr_attr, a->a_desc, a->a_vals,
(a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
{
rc = LDAP_OTHER;
break;
}
}
entry_free( e );
if (rc) break;
}
if (rc) {
entry_free( usr_attr );
usr_attr = NULL;
}
ch_free( buf );
ldif_close( fp );
Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
return rc;
}
int
slap_discover_feature(
const char *uri,
int version,
const char *attr,
const char *val )
{
LDAP *ld;
LDAPMessage *res = NULL, *entry;
int rc, i;
struct berval cred = BER_BVC( "" ),
bv_val,
**values = NULL;
char *attrs[ 2 ] = { NULL, NULL };
ber_str2bv( val, 0, 0, &bv_val );
attrs[ 0 ] = (char *) attr;
rc = ldap_initialize( &ld, uri );
if ( rc != LDAP_SUCCESS ) {
return rc;
}
rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION,
(const void *)&version );
if ( rc != LDAP_SUCCESS ) {
goto done;
}
rc = ldap_sasl_bind_s( ld, "", LDAP_SASL_SIMPLE,
&cred, NULL, NULL, NULL );
if ( rc != LDAP_SUCCESS ) {
goto done;
}
rc = ldap_search_ext_s( ld, "", LDAP_SCOPE_BASE, "(objectClass=*)",
attrs, 0, NULL, NULL, NULL, 0, &res );
if ( rc != LDAP_SUCCESS ) {
goto done;
}
entry = ldap_first_entry( ld, res );
if ( entry == NULL ) {
goto done;
}
values = ldap_get_values_len( ld, entry, attrs[ 0 ] );
if ( values == NULL ) {
rc = LDAP_NO_SUCH_ATTRIBUTE;
goto done;
}
for ( i = 0; values[ i ] != NULL; i++ ) {
if ( bvmatch( &bv_val, values[ i ] ) ) {
rc = LDAP_COMPARE_TRUE;
goto done;
}
}
rc = LDAP_COMPARE_FALSE;
done:;
if ( values != NULL ) {
ldap_value_free_len( values );
}
if ( res != NULL ) {
ldap_msgfree( res );
}
ldap_unbind_ext( ld, NULL, NULL );
return rc;
}