Move keystore message constants and use a messenger.

* The keystore backend will (at least for the time being) reside in a
  separate server. This one can be reached via normal messaging, so use
  a BMessenger for sending key messages.
* Move the message constants from RegistrarDefs.h into a new
  KeyStoreDefs.h that also contains the server signature.
* Update the message constants to reflect the new situation.

headers/private/app/KeyStoreDefs.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2012, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Michael Lotz, [email protected]
+ */
+#ifndef _KEY_STORE_DEFS_H
+#define _KEY_STORE_DEFS_H
+
+
+namespace BPrivate {
+
+
+const char* kKeyStoreServerSignature
+	= "application/x-vnd.Haiku-keystore_server";
+
+
+enum {
+	// Replies
+	KEY_STORE_SUCCESS						= 'KRok',
+	KEY_STORE_ERROR							= 'KRer',
+	KEY_STORE_RESULT						= 'KRrs',
+
+	// KeyStore requests
+	KEY_STORE_GET_KEY						= 'KgtK',
+	KEY_STORE_GET_NEXT_KEY					= 'KgnK',
+	KEY_STORE_ADD_KEY						= 'KadK',
+	KEY_STORE_REMOVE_KEY					= 'KrmK',
+	KEY_STORE_ADD_KEYRING					= 'KaKR',
+	KEY_STORE_REMOVE_KEYRING				= 'KrKR',
+	KEY_STORE_GET_NEXT_KEYRING				= 'KnKR',
+	KEY_STORE_SET_MASTER_KEY				= 'KsMK',
+	KEY_STORE_REMOVE_MASTER_KEY				= 'KrMK',
+	KEY_STORE_ADD_KEYRING_TO_MASTER			= 'KarM',
+	KEY_STORE_REMOVE_KEYRING_FROM_MASTER	= 'KrrM',
+	KEY_STORE_GET_NEXT_MASTER_KEYRING		= 'KnrM',
+	KEY_STORE_IS_KEYRING_ACCESSIBLE			= 'KiaR',
+	KEY_STORE_REVOKE_ACCESS					= 'KvaR',
+	KEY_STORE_REVOKE_MASTER_ACCESS			= 'KvaM',
+	KEY_STORE_GET_NEXT_APPLICATION			= 'KnKA',
+	KEY_STORE_REMOVE_APPLICATION			= 'KrKA',
+};
+
+
+}	// namespace BPrivate
+
+
+#endif	// _KEY_STORE_DEFS_H

headers/private/app/RegistrarDefs.h

@@ -122,25 +122,6 @@ enum {
 	B_REG_GET_USER_GROUPS					= 'rgug',
 	B_REG_UPDATE_USER						= 'ruus',
 	B_REG_UPDATE_GROUP						= 'rugr',
-
-	// KeyStore requests
-	B_REG_GET_KEY							= 'rgtK',
-	B_REG_GET_NEXT_KEY						= 'rgnK',
-	B_REG_ADD_KEY							= 'radK',
-	B_REG_REMOVE_KEY						= 'rrmK',
-	B_REG_ADD_KEYRING						= 'raKR',
-	B_REG_REMOVE_KEYRING					= 'rrKR',
-	B_REG_GET_NEXT_KEYRING					= 'rnKR',
-	B_REG_SET_MASTER_KEY					= 'rsMK',
-	B_REG_REMOVE_MASTER_KEY					= 'rrMK',
-	B_REG_ADD_KEYRING_TO_MASTER				= 'rarM',
-	B_REG_REMOVE_KEYRING_FROM_MASTER		= 'rrrM',
-	B_REG_GET_NEXT_MASTER_KEYRING			= 'rnrM',
-	B_REG_IS_KEYRING_ACCESSIBLE				= 'riaR',
-	B_REG_REVOKE_ACCESS						= 'rvaR',
-	B_REG_REVOKE_MASTER_ACCESS				= 'rvaM',
-	B_REG_GET_NEXT_APPLICATION				= 'rnKA',
-	B_REG_REMOVE_APPLICATION				= 'rrKA',
 };
 
 // B_REG_MIME_SET_PARAM "which" constants