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/*
* Unix SMB/CIFS implementation.
* Virtual Windows Registry Layer
* Copyright (C) Gerald Carter 2002-2005
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* Implementation of registry frontend view functions. */
#include "includes.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_RPC_SRV
extern REGISTRY_OPS printing_ops;
extern REGISTRY_OPS eventlog_ops;
extern REGISTRY_OPS shares_reg_ops;
extern REGISTRY_OPS regdb_ops; /* these are the default */
/* array of REGISTRY_HOOK's which are read into a tree for easy access */
REGISTRY_HOOK reg_hooks[] = {
{ KEY_PRINTING, &printing_ops },
{ KEY_PRINTING_2K, &printing_ops },
{ KEY_PRINTING_PORTS, &printing_ops },
{ KEY_EVENTLOG, &eventlog_ops },
{ KEY_SHARES, &shares_reg_ops },
{ NULL, NULL }
};
/***********************************************************************
Open the registry database and initialize the REGISTRY_HOOK cache
***********************************************************************/
BOOL init_registry( void )
{
int i;
if ( !init_registry_db() ) {
DEBUG(0,("init_registry: failed to initialize the registry tdb!\n"));
return False;
}
/* build the cache tree of registry hooks */
reghook_cache_init();
for ( i=0; reg_hooks[i].keyname; i++ ) {
if ( !reghook_cache_add(®_hooks[i]) )
return False;
}
if ( DEBUGLEVEL >= 20 )
reghook_dump_cache(20);
return True;
}
/***********************************************************************
High level wrapper function for storing registry subkeys
***********************************************************************/
BOOL store_reg_keys( REGISTRY_KEY *key, REGSUBKEY_CTR *subkeys )
{
if ( key->hook && key->hook->ops && key->hook->ops->store_subkeys_fn )
return key->hook->ops->store_subkeys_fn( key->name, subkeys );
else
return False;
}
/***********************************************************************
High level wrapper function for storing registry values
***********************************************************************/
BOOL store_reg_values( REGISTRY_KEY *key, REGVAL_CTR *val )
{
if ( key->hook && key->hook->ops && key->hook->ops->store_values_fn )
return key->hook->ops->store_values_fn( key->name, val );
else
return False;
}
/***********************************************************************
High level wrapper function for enumerating registry subkeys
Initialize the TALLOC_CTX if necessary
***********************************************************************/
int fetch_reg_keys( REGISTRY_KEY *key, REGSUBKEY_CTR *subkey_ctr )
{
int result = -1;
if ( key->hook && key->hook->ops && key->hook->ops->subkey_fn )
result = key->hook->ops->subkey_fn( key->name, subkey_ctr );
return result;
}
/***********************************************************************
retreive a specific subkey specified by index. Caller is
responsible for freeing memory
***********************************************************************/
BOOL fetch_reg_keys_specific( REGISTRY_KEY *key, char** subkey, uint32 key_index )
{
static REGSUBKEY_CTR ctr;
static pstring save_path;
static BOOL ctr_init = False;
char *s;
*subkey = NULL;
/* simple caching for performance; very basic heuristic */
DEBUG(8,("fetch_reg_keys_specific: Looking for key [%d] of [%s]\n", key_index, key->name));
if ( !ctr_init ) {
DEBUG(8,("fetch_reg_keys_specific: Initializing cache of subkeys for [%s]\n", key->name));
ZERO_STRUCTP( &ctr );
regsubkey_ctr_init( &ctr );
pstrcpy( save_path, key->name );
if ( fetch_reg_keys( key, &ctr) == -1 )
return False;
ctr_init = True;
}
/* clear the cache when key_index == 0 or the path has changed */
else if ( !key_index || StrCaseCmp( save_path, key->name) ) {
DEBUG(8,("fetch_reg_keys_specific: Updating cache of subkeys for [%s]\n", key->name));
regsubkey_ctr_destroy( &ctr );
regsubkey_ctr_init( &ctr );
pstrcpy( save_path, key->name );
if ( fetch_reg_keys( key, &ctr) == -1 )
return False;
}
if ( !(s = regsubkey_ctr_specific_key( &ctr, key_index )) )
return False;
*subkey = SMB_STRDUP( s );
return True;
}
/***********************************************************************
High level wrapper function for enumerating registry values
Initialize the TALLOC_CTX if necessary
***********************************************************************/
int fetch_reg_values( REGISTRY_KEY *key, REGVAL_CTR *val )
{
int result = -1;
if ( key->hook && key->hook->ops && key->hook->ops->value_fn )
result = key->hook->ops->value_fn( key->name, val );
return result;
}
/***********************************************************************
retreive a specific subkey specified by index. Caller is
responsible for freeing memory
***********************************************************************/
BOOL fetch_reg_values_specific( REGISTRY_KEY *key, REGISTRY_VALUE **val, uint32 val_index )
{
static REGVAL_CTR ctr;
static pstring save_path;
static BOOL ctr_init = False;
REGISTRY_VALUE *v;
*val = NULL;
/* simple caching for performance; very basic heuristic */
if ( !ctr_init ) {
DEBUG(8,("fetch_reg_values_specific: Initializing cache of values for [%s]\n", key->name));
ZERO_STRUCTP( &ctr );
regval_ctr_init( &ctr );
pstrcpy( save_path, key->name );
if ( fetch_reg_values( key, &ctr) == -1 )
return False;
ctr_init = True;
}
/* clear the cache when val_index == 0 or the path has changed */
else if ( !val_index || StrCaseCmp(save_path, key->name) ) {
DEBUG(8,("fetch_reg_values_specific: Updating cache of values for [%s]\n", key->name));
regval_ctr_destroy( &ctr );
regval_ctr_init( &ctr );
pstrcpy( save_path, key->name );
if ( fetch_reg_values( key, &ctr) == -1 )
return False;
}
if ( !(v = regval_ctr_specific_value( &ctr, val_index )) )
return False;
*val = dup_registry_value( v );
return True;
}
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