r19947: Change regkey_open_internal to take the parent key and a talloc_ctx as

arguments. This also replaces regkey_close_internal by TALLOC_FREE.

Volker
(This used to be commit a177bbb2d5611f03cec25b7577c2e6a542f94a69)

4 files changed, 91 insertions, 90 deletions

diff --git a/source3/registry/reg_frontend.c b/source3/registry/reg_frontend.c
index 5a76e36c81..498651894c 100644
--- a/source3/registry/reg_frontend.c
+++ b/source3/registry/reg_frontend.c
@@ -290,44 +290,67 @@ BOOL regkey_access_check( REGISTRY_KEY *key, uint32 requested, uint32 *granted,
 /***********************************************************************
 ***********************************************************************/
 
-WERROR regkey_open_internal( REGISTRY_KEY **regkey, const char *path, 
+static int regkey_destructor(REGISTRY_KEY *key)
+{
+	return regdb_close();
+}
+
+WERROR regkey_open_internal( TALLOC_CTX *mem_ctx, REGISTRY_KEY *parent,
+			     REGISTRY_KEY **regkey, const char *name,
                              NT_USER_TOKEN *token, uint32 access_desired )
 {
 	WERROR     	result = WERR_OK;
-	REGISTRY_KEY    *keyinfo;
+	REGISTRY_KEY    *key;
 	REGSUBKEY_CTR	*subkeys = NULL;
-	uint32 access_granted;
-	
-	if ( !(W_ERROR_IS_OK(result = regdb_open()) ) )
-		return result;
+	size_t path_len;
 
-	DEBUG(7,("regkey_open_internal: name = [%s]\n", path));
+	DEBUG(7,("regkey_open_internal: name = [%s]\n", name));
 
-	if ( !(*regkey = TALLOC_ZERO_P(NULL, REGISTRY_KEY)) ) {
-		regdb_close();
+	if ( !(key = TALLOC_ZERO_P(mem_ctx, REGISTRY_KEY)) ) {
 		return WERR_NOMEM;
 	}
-		
-	keyinfo = *regkey;
+
+	if ( !(W_ERROR_IS_OK(result = regdb_open()) ) )
+		return result;
+
+	talloc_set_destructor(key, regkey_destructor);
 		
 	/* initialization */
 	
-	keyinfo->type = REG_KEY_GENERIC;
-	if (!(keyinfo->name = talloc_strdup(keyinfo, path))) {
+	key->type = REG_KEY_GENERIC;
+	if (!(key->name = talloc_strdup(key, name))) {
 		result = WERR_NOMEM;
 		goto done;
 	}
 
+	if (parent != NULL) {
+		char *tmp;
+		if (!(tmp = talloc_asprintf(key, "%s%s%s", 
+					    parent ? parent->name : "",
+					    parent ? "\\" : "", 
+					    key->name))) {
+			result = WERR_NOMEM;
+			goto done;
+		}
+		TALLOC_FREE(key->name);
+		key->name = tmp;
+	}
+
+	path_len = strlen( key->name );
+	if ( (path_len != 0) && (key->name[path_len-1] == '\\') ) {
+		key->name[path_len-1] = '\0';
+	}
+
 	/* Tag this as a Performance Counter Key */
 
-	if( StrnCaseCmp(path, KEY_HKPD, strlen(KEY_HKPD)) == 0 )
-		keyinfo->type = REG_KEY_HKPD;
+	if( StrnCaseCmp(key->name, KEY_HKPD, strlen(KEY_HKPD)) == 0 )
+		key->type = REG_KEY_HKPD;
 	
 	/* Look up the table of registry I/O operations */
 
-	if ( !(keyinfo->hook = reghook_cache_find( keyinfo->name )) ) {
-		DEBUG(0,("open_registry_key: Failed to assigned a REGISTRY_HOOK to [%s]\n",
-			keyinfo->name ));
+	if ( !(key->hook = reghook_cache_find( key->name )) ) {
+		DEBUG(0,("open_registry_key: Failed to assigned a "
+			 "REGISTRY_HOOK to [%s]\n", key->name ));
 		result = WERR_BADFILE;
 		goto done;
 	}
@@ -335,40 +358,31 @@ WERROR regkey_open_internal( REGISTRY_KEY **regkey, const char *path,
 	/* check if the path really exists; failed is indicated by -1 */
 	/* if the subkey count failed, bail out */
 
-	if ( !(subkeys = TALLOC_ZERO_P( keyinfo, REGSUBKEY_CTR )) ) {
+	if ( !(subkeys = TALLOC_ZERO_P( key, REGSUBKEY_CTR )) ) {
 		result = WERR_NOMEM;
 		goto done;
 	}
 
-	if ( fetch_reg_keys( keyinfo, subkeys ) == -1 )  {
+	if ( fetch_reg_keys( key, subkeys ) == -1 )  {
 		result = WERR_BADFILE;
 		goto done;
 	}
 	
 	TALLOC_FREE( subkeys );
 
-	if ( !regkey_access_check( keyinfo, access_desired, &access_granted, token ) ) {
+	if ( !regkey_access_check( key, access_desired, &key->access_granted,
+				   token ) ) {
 		result = WERR_ACCESS_DENIED;
 		goto done;
 	}
-	
-	keyinfo->access_granted = access_granted;
 
+	*regkey = key;
+	result = WERR_OK;
+	
 done:
 	if ( !W_ERROR_IS_OK(result) ) {
-		regkey_close_internal( *regkey );
+		TALLOC_FREE(key);
 	}
 
 	return result;
 }
-
-/*******************************************************************
-*******************************************************************/
-
-WERROR regkey_close_internal( REGISTRY_KEY *key )
-{
-	TALLOC_FREE( key );
-	regdb_close();
-
-	return WERR_OK;
-}
diff --git a/source3/rpc_server/srv_eventlog_nt.c b/source3/rpc_server/srv_eventlog_nt.c
index ec07981de9..73dfd42184 100644
--- a/source3/rpc_server/srv_eventlog_nt.c
+++ b/source3/rpc_server/srv_eventlog_nt.c
@@ -411,9 +411,8 @@ static BOOL sync_eventlog_params( EVENTLOG_INFO *info )
 
 	pstr_sprintf( path, "%s/%s", KEY_EVENTLOG, elogname );
 
-	wresult =
-		regkey_open_internal( &keyinfo, path, get_root_nt_token(  ),
-				      REG_KEY_READ );
+	wresult = regkey_open_internal( NULL, NULL, &keyinfo, path,
+					get_root_nt_token(  ), REG_KEY_READ );
 
 	if ( !W_ERROR_IS_OK( wresult ) ) {
 		DEBUG( 4,
@@ -436,7 +435,7 @@ static BOOL sync_eventlog_params( EVENTLOG_INFO *info )
 	if ( ( val = regval_ctr_getvalue( values, "MaxSize" ) ) != NULL )
 		uiMaxSize = IVAL( regval_data_p( val ), 0 );
 
-	regkey_close_internal( keyinfo );
+	TALLOC_FREE( keyinfo );
 
 	tdb_store_int32( ELOG_TDB_CTX(info->etdb), EVT_MAXSIZE, uiMaxSize );
 	tdb_store_int32( ELOG_TDB_CTX(info->etdb), EVT_RETENTION, uiRetention );
diff --git a/source3/rpc_server/srv_winreg_nt.c b/source3/rpc_server/srv_winreg_nt.c
index 52de236bce..16c271427e 100644
--- a/source3/rpc_server/srv_winreg_nt.c
+++ b/source3/rpc_server/srv_winreg_nt.c
@@ -43,7 +43,6 @@ struct regkey_info {
 static void free_regkey_info(void *ptr)
 {
 	struct regkey_info *info = (struct regkey_info *)ptr;
-	regkey_close_internal( info->key );
 	TALLOC_FREE(info);
 }
 
@@ -107,36 +106,21 @@ static WERROR open_registry_key( pipes_struct *p, POLICY_HND *hnd,
 				 const char *subkeyname,
 				 uint32 access_desired  )
 {
-	char           *keypath;
-	int		path_len;
 	WERROR     	result = WERR_OK;
 	struct regkey_info *info;
 
 	/* create a full registry path and strip any trailing '\' 
 	   characters */
 
-	if (asprintf(&keypath, "%s%s%s", 
-		     parent ? parent->name : "",
-		     parent ? "\\" : "", 
-		     subkeyname) == -1) {
-		return WERR_NOMEM;
-	}
-
-	path_len = strlen( keypath );
-	if ( path_len && keypath[path_len-1] == '\\' )
-		keypath[path_len-1] = '\0';
-
 	if (!(info = TALLOC_ZERO_P(NULL, struct regkey_info))) {
-		SAFE_FREE(keypath);
 		return WERR_NOMEM;
 	}
 	
 	/* now do the internal open */
 		
-	result = regkey_open_internal( &info->key, keypath,
+	result = regkey_open_internal( info, parent, &info->key, subkeyname,
 				       p->pipe_user.nt_user_token,
 				       access_desired );
-	SAFE_FREE(keypath);
 
 	if ( !W_ERROR_IS_OK(result) ) {
 		TALLOC_FREE(info);
@@ -144,7 +128,6 @@ static WERROR open_registry_key( pipes_struct *p, POLICY_HND *hnd,
 	}
 	
 	if ( !create_policy_hnd( p, hnd, free_regkey_info, info ) ) {
-		regkey_close_internal( info->key );
 		TALLOC_FREE(info);
 		return WERR_BADFILE; 
 	}
diff --git a/source3/services/services_db.c b/source3/services/services_db.c
index 5b4f58d766..40022ab365 100644
--- a/source3/services/services_db.c
+++ b/source3/services/services_db.c
@@ -322,8 +322,8 @@ static void add_new_svc_name( REGISTRY_KEY *key_parent, REGSUBKEY_CTR *subkeys,
 	/* open the new service key */
 
 	pstr_sprintf( path, "%s\\%s", KEY_SERVICES, name );
-	wresult = regkey_open_internal( &key_service, path, get_root_nt_token(), 
-		REG_KEY_ALL );
+	wresult = regkey_open_internal( NULL, NULL, &key_service, path,
+					get_root_nt_token(), REG_KEY_ALL );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("add_new_svc_name: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
@@ -334,7 +334,7 @@ static void add_new_svc_name( REGISTRY_KEY *key_parent, REGSUBKEY_CTR *subkeys,
 
 	if ( !(svc_subkeys = TALLOC_ZERO_P( key_service, REGSUBKEY_CTR )) ) {
 		DEBUG(0,("add_new_svc_name: talloc() failed!\n"));
-		regkey_close_internal( key_service );
+		TALLOC_FREE( key_service );
 		return;
 	}
 	
@@ -346,7 +346,7 @@ static void add_new_svc_name( REGISTRY_KEY *key_parent, REGSUBKEY_CTR *subkeys,
 	
 	if ( !(values = TALLOC_ZERO_P( key_service, REGVAL_CTR )) ) {
 		DEBUG(0,("add_new_svc_name: talloc() failed!\n"));
-		regkey_close_internal( key_service );
+		TALLOC_FREE( key_service );
 		return;
 	}
 
@@ -355,29 +355,29 @@ static void add_new_svc_name( REGISTRY_KEY *key_parent, REGSUBKEY_CTR *subkeys,
 
 	/* cleanup the service key*/
 
-	regkey_close_internal( key_service );
+	TALLOC_FREE( key_service );
 
 	/* now add the security descriptor */
 
 	pstr_sprintf( path, "%s\\%s\\%s", KEY_SERVICES, name, "Security" );
-	wresult = regkey_open_internal( &key_secdesc, path, get_root_nt_token(), 
-		REG_KEY_ALL );
+	wresult = regkey_open_internal( NULL, NULL, &key_secdesc, path,
+					get_root_nt_token(), REG_KEY_ALL );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("add_new_svc_name: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
-		regkey_close_internal( key_secdesc );
+		TALLOC_FREE( key_secdesc );
 		return;
 	}
 
 	if ( !(values = TALLOC_ZERO_P( key_secdesc, REGVAL_CTR )) ) {
 		DEBUG(0,("add_new_svc_name: talloc() failed!\n"));
-		regkey_close_internal( key_secdesc );
+		TALLOC_FREE( key_secdesc );
 		return;
 	}
 
 	if ( !(sd = construct_service_sd(key_secdesc)) ) {
 		DEBUG(0,("add_new_svc_name: Failed to create default sec_desc!\n"));
-		regkey_close_internal( key_secdesc );
+		TALLOC_FREE( key_secdesc );
 		return;
 	}
 	
@@ -394,7 +394,7 @@ static void add_new_svc_name( REGISTRY_KEY *key_parent, REGSUBKEY_CTR *subkeys,
 	/* finally cleanup the Security key */
 	
 	prs_mem_free( &ps );
-	regkey_close_internal( key_secdesc );
+	TALLOC_FREE( key_secdesc );
 
 	return;
 }
@@ -412,8 +412,8 @@ void svcctl_init_keys( void )
 	
 	/* bad mojo here if the lookup failed.  Should not happen */
 	
-	wresult = regkey_open_internal( &key, KEY_SERVICES, get_root_nt_token(), 
-		REG_KEY_ALL );
+	wresult = regkey_open_internal( NULL, NULL, &key, KEY_SERVICES,
+					get_root_nt_token(), REG_KEY_ALL );
 
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("init_services_keys: key lookup failed! (%s)\n", 
@@ -425,7 +425,7 @@ void svcctl_init_keys( void )
 	
 	if ( !(subkeys = TALLOC_ZERO_P( key, REGSUBKEY_CTR )) ) {
 		DEBUG(0,("init_services_keys: talloc() failed!\n"));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return;
 	}
 	
@@ -447,7 +447,7 @@ void svcctl_init_keys( void )
 		add_new_svc_name( key, subkeys, service_list[i] );
 	}
 
-	regkey_close_internal( key );
+	TALLOC_FREE( key );
 
 	/* initialize the control hooks */
 
@@ -476,7 +476,8 @@ SEC_DESC* svcctl_get_secdesc( TALLOC_CTX *ctx, const char *name, NT_USER_TOKEN *
 	/* now add the security descriptor */
 
 	pstr_sprintf( path, "%s\\%s\\%s", KEY_SERVICES, name, "Security" );
-	wresult = regkey_open_internal( &key, path, token, REG_KEY_ALL );
+	wresult = regkey_open_internal( NULL, NULL, &key, path, token,
+					REG_KEY_ALL );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("svcctl_get_secdesc: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
@@ -485,7 +486,7 @@ SEC_DESC* svcctl_get_secdesc( TALLOC_CTX *ctx, const char *name, NT_USER_TOKEN *
 
 	if ( !(values = TALLOC_ZERO_P( key, REGVAL_CTR )) ) {
 		DEBUG(0,("add_new_svc_name: talloc() failed!\n"));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return NULL;
 	}
 
@@ -494,7 +495,7 @@ SEC_DESC* svcctl_get_secdesc( TALLOC_CTX *ctx, const char *name, NT_USER_TOKEN *
 	if ( !(val = regval_ctr_getvalue( values, "Security" )) ) {
 		DEBUG(6,("svcctl_get_secdesc: constructing default secdesc for service [%s]\n", 
 			name));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return construct_service_sd( ctx );
 	}
 	
@@ -505,7 +506,7 @@ SEC_DESC* svcctl_get_secdesc( TALLOC_CTX *ctx, const char *name, NT_USER_TOKEN *
 	prs_give_memory( &ps, (char *)regval_data_p(val), regval_size(val), False );
 	
 	if ( !sec_io_desc("sec_desc", &sd, &ps, 0 ) ) {
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return construct_service_sd( ctx );
 	}
 	
@@ -514,7 +515,7 @@ SEC_DESC* svcctl_get_secdesc( TALLOC_CTX *ctx, const char *name, NT_USER_TOKEN *
 	/* finally cleanup the Security key */
 	
 	prs_mem_free( &ps );
-	regkey_close_internal( key );
+	TALLOC_FREE( key );
 
 	return ret_sd;
 }
@@ -535,7 +536,8 @@ BOOL svcctl_set_secdesc( TALLOC_CTX *ctx, const char *name, SEC_DESC *sec_desc,
 	/* now add the security descriptor */
 
 	pstr_sprintf( path, "%s\\%s\\%s", KEY_SERVICES, name, "Security" );
-	wresult = regkey_open_internal( &key, path, token, REG_KEY_ALL );
+	wresult = regkey_open_internal( NULL, NULL, &key, path, token,
+					REG_KEY_ALL );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("svcctl_get_secdesc: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
@@ -544,7 +546,7 @@ BOOL svcctl_set_secdesc( TALLOC_CTX *ctx, const char *name, SEC_DESC *sec_desc,
 
 	if ( !(values = TALLOC_ZERO_P( key, REGVAL_CTR )) ) {
 		DEBUG(0,("add_new_svc_name: talloc() failed!\n"));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return False;
 	}
 	
@@ -561,7 +563,7 @@ BOOL svcctl_set_secdesc( TALLOC_CTX *ctx, const char *name, SEC_DESC *sec_desc,
 	/* cleanup */
 	
 	prs_mem_free( &ps );
-	regkey_close_internal( key);
+	TALLOC_FREE( key);
 
 	return ret;
 }
@@ -581,7 +583,8 @@ char* svcctl_lookup_dispname( const char *name, NT_USER_TOKEN *token )
 	/* now add the security descriptor */
 
 	pstr_sprintf( path, "%s\\%s", KEY_SERVICES, name );
-	wresult = regkey_open_internal( &key, path, token, REG_KEY_READ );
+	wresult = regkey_open_internal( NULL, NULL, &key, path, token,
+					REG_KEY_READ );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("svcctl_lookup_dispname: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
@@ -590,7 +593,7 @@ char* svcctl_lookup_dispname( const char *name, NT_USER_TOKEN *token )
 
 	if ( !(values = TALLOC_ZERO_P( key, REGVAL_CTR )) ) {
 		DEBUG(0,("svcctl_lookup_dispname: talloc() failed!\n"));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		goto fail;
 	}
 
@@ -601,13 +604,13 @@ char* svcctl_lookup_dispname( const char *name, NT_USER_TOKEN *token )
 
 	rpcstr_pull( display_name, regval_data_p(val), sizeof(display_name), regval_size(val), 0 );
 
-	regkey_close_internal( key );
+	TALLOC_FREE( key );
 	
 	return display_name;
 
 fail:
 	/* default to returning the service name */
-	regkey_close_internal( key );
+	TALLOC_FREE( key );
 	fstrcpy( display_name, name );
 	return display_name;
 }
@@ -627,7 +630,8 @@ char* svcctl_lookup_description( const char *name, NT_USER_TOKEN *token )
 	/* now add the security descriptor */
 
 	pstr_sprintf( path, "%s\\%s", KEY_SERVICES, name );
-	wresult = regkey_open_internal( &key, path, token, REG_KEY_READ );
+	wresult = regkey_open_internal( NULL, NULL, &key, path, token,
+					REG_KEY_READ );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("svcctl_lookup_dispname: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
@@ -636,7 +640,7 @@ char* svcctl_lookup_description( const char *name, NT_USER_TOKEN *token )
 
 	if ( !(values = TALLOC_ZERO_P( key, REGVAL_CTR )) ) {
 		DEBUG(0,("svcctl_lookup_dispname: talloc() failed!\n"));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return NULL;
 	}
 
@@ -647,7 +651,7 @@ char* svcctl_lookup_description( const char *name, NT_USER_TOKEN *token )
 	else
 		rpcstr_pull( description, regval_data_p(val), sizeof(description), regval_size(val), 0 );
 
-	regkey_close_internal( key );
+	TALLOC_FREE( key );
 	
 	return description;
 }
@@ -666,7 +670,8 @@ REGVAL_CTR* svcctl_fetch_regvalues( const char *name, NT_USER_TOKEN *token )
 	/* now add the security descriptor */
 
 	pstr_sprintf( path, "%s\\%s", KEY_SERVICES, name );
-	wresult = regkey_open_internal( &key, path, token, REG_KEY_READ );
+	wresult = regkey_open_internal( NULL, NULL, &key, path, token,
+					REG_KEY_READ );
 	if ( !W_ERROR_IS_OK(wresult) ) {
 		DEBUG(0,("svcctl_fetch_regvalues: key lookup failed! [%s] (%s)\n", 
 			path, dos_errstr(wresult)));
@@ -675,13 +680,13 @@ REGVAL_CTR* svcctl_fetch_regvalues( const char *name, NT_USER_TOKEN *token )
 
 	if ( !(values = TALLOC_ZERO_P( NULL, REGVAL_CTR )) ) {
 		DEBUG(0,("svcctl_fetch_regvalues: talloc() failed!\n"));
-		regkey_close_internal( key );
+		TALLOC_FREE( key );
 		return NULL;
 	}
 	
 	fetch_reg_values( key, values );
 
-	regkey_close_internal( key );
+	TALLOC_FREE( key );
 	
 	return values;
 }