handling replies continuously from server

[oweals/gnunet.git] / src / dns / dns.h

diff --git a/src/dns/dns.h b/src/dns/dns.h
index dd0f55e166dce9f6dfb5375d0a9067b558589fce..ee95d9c73ceb594231db0688ac9070938ba2f450 100644 (file)
--- a/src/dns/dns.h
+++ b/src/dns/dns.h
@@ -1,6 +1,6 @@
 /*
       This file is part of GNUnet
-      (C) 2010, 2011, 2012 Christian Grothoff (and other contributing authors)
+      (C) 2012 Christian Grothoff (and other contributing authors)
 
       GNUnet is free software; you can redistribute it and/or modify
       it under the terms of the GNU General Public License as published
@@ -21,7 +21,6 @@
 /**
  * @file dns/dns.h
  * @brief IPC messages between DNS API and DNS service
- * @author Philipp Toelke
  * @author Christian Grothoff
  */
 #ifndef DNS_H
@@ -29,26 +28,74 @@
 
 GNUNET_NETWORK_STRUCT_BEGIN
 
-struct query_packet
+
+/**
+ * Message from client to DNS service to register itself.
+ */
+struct GNUNET_DNS_Register
+{
+  /**
+    * Header of type GNUNET_MESSAGE_TYPE_DNS_CLIENT_INIT
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * NBO encoding of 'enum GNUNET_DNS_Flags' for the client.
+   */
+  uint32_t flags;
+};
+
+
+/**
+ * Message from DNS service to client: please handle a request.
+ */
+struct GNUNET_DNS_Request
+{
+  /**
+    * Header of type GNUNET_MESSAGE_TYPE_DNS_CLIENT_REQUEST
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * Always zero.
+   */
+  uint32_t reserved GNUNET_PACKED;
+  
+  /**
+   * Unique request ID.
+   */
+  uint64_t request_id GNUNET_PACKED;
+
+  /* followed by original DNS request (without UDP header) */
+
+};
+
+
+/**
+ * Message from client to DNS service: here is my reply.
+ */
+struct GNUNET_DNS_Response
 {
-  struct GNUNET_MessageHeader hdr;
-
-        /**
-        * The IP-Address this query was originally sent to
-        */
-  char orig_to[16];
-        /**
-        * The IP-Address this query was originally sent from
-        */
-  char orig_from[16];
-  char addrlen;
-        /**
-        * The UDP-Port this query was originally sent from
-        */
-  uint16_t src_port GNUNET_PACKED;
-
-  unsigned char data[1];        /* The DNS-Packet */
+  /**
+   * Header of type GNUNET_MESSAGE_TYPE_DNS_CLIENT_RESPONSE
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * Zero to drop, 1 for no change (no payload), 2 for update (message has payload).
+   */
+  uint32_t drop_flag GNUNET_PACKED;
+  
+  /**
+   * Unique request ID.
+   */
+  uint64_t request_id GNUNET_PACKED;
+
+  /* followed by original DNS request (without UDP header) */
+
 };
+
+
 GNUNET_NETWORK_STRUCT_END
 
 #endif