added new header for protocol definitions

1 files changed, 188 insertions, 0 deletions

diff --git a/src/scalarproduct/scalarproduct.h b/src/scalarproduct/scalarproduct.h
new file mode 100644
index 0000000000..5d6b82a35b
--- /dev/null
+++ b/src/scalarproduct/scalarproduct.h
@@ -0,0 +1,188 @@
+/*
+     This file is part of GNUnet.
+     (C) 2009, 2010, 2011, 2012, 2013 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
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+
+/**
+ * @file   scalarproduct.h
+ * @brief  Scalar Product Message Types
+ * @author Christian M. Fuchs
+ *
+ * Created on September 2, 2013, 3:43 PM
+ */
+
+#ifndef SCALARPRODUCT_H
+#define	SCALARPRODUCT_H
+
+#ifdef	__cplusplus
+extern "C"
+{
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+//                     Scalar Product Message Types
+///////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Message type passed from client to service 
+ * to initiate a request or responder role
+ */
+struct GNUNET_SCALARPRODUCT_client_request
+{
+  /**
+   * GNUNET message header
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * how many elements the vector in payload contains
+   */
+  uint16_t element_count GNUNET_PACKED;
+
+  /**
+   * how many bytes the mask has
+   */
+  uint16_t mask_length GNUNET_PACKED;
+
+  /**
+   * the transaction/session key used to identify a session
+   */
+  struct GNUNET_HashCode key;
+
+  /**
+   * the identity of a remote peer we want to communicate with
+   */
+  struct GNUNET_PeerIdentity peer;
+
+  /**
+   * followed by long vector[element_count] | [unsigned char mask[mask_bytes]]
+   */
+};
+  
+/**
+ * Message type passed from requesting service Alice to responding service Bob
+ * to initiate a request and make bob participate in our protocol
+ */
+struct GNUNET_SCALARPRODUCT_service_request {
+  /**
+   * GNUNET message header
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * how many bytes the mask has
+   */
+  uint16_t mask_length GNUNET_PACKED;
+
+  /**
+   * the length of the publickey contained within this message
+   */
+  uint16_t pk_length GNUNET_PACKED;
+
+  /**
+   * the transaction/session key used to identify a session
+   */
+  struct GNUNET_HashCode key;
+
+  /**
+   * how many elements the vector in payload contains
+   */
+  uint16_t element_count GNUNET_PACKED;
+
+  /**
+   * how many elements are actually included after the mask was applied.
+   */
+  uint16_t used_element_count GNUNET_PACKED;
+
+  /**
+   * followed by mask | public_key | vector[used_element_count]
+   */
+};
+
+/**
+ * Message type passed from responding service Bob to responding service Alice
+ * to complete a request and allow Alice to compute the result
+ */
+struct GNUNET_SCALARPRODUCT_service_response {
+  /**
+   * GNUNET message header
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * how many elements the vector in payload contains
+   */
+  uint16_t element_count GNUNET_PACKED;
+
+  /**
+   * how many elements are actually included after the mask was applied.
+   */
+  uint16_t used_element_count GNUNET_PACKED;
+
+  /**
+   * the transaction/session key used to identify a session
+   */
+  struct GNUNET_HashCode key;
+
+  /**
+   * followed by s | s' | kp[] | kq[]
+   */
+};
+
+/**
+ * Message type passed from service client
+ * to finalize a session as requester or responder
+ */
+struct GNUNET_SCALARPRODUCT_client_response
+{
+  /**
+   * GNUNET message header
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * 0 if no product attached
+   */
+  uint32_t product_length GNUNET_PACKED;
+
+  /**
+   * the transaction/session key used to identify a session
+   */
+  struct GNUNET_HashCode key;
+
+  /**
+   * the identity of a remote peer we want to communicate with
+   */
+  struct GNUNET_PeerIdentity peer;
+
+  /**
+   * Workaround for libgcrypt: -1 if negative, 0 if zero, else 1
+   */
+  int8_t range;
+
+  /**
+   * followed by product of length product_length (or nothing)
+   */
+};
+  
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* SCALARPRODUCT_H */
+