1 files changed, 177 insertions, 0 deletions

diff --git a/src/contrib/service/scalarproduct/scalarproduct.h b/src/contrib/service/scalarproduct/scalarproduct.h
new file mode 100644
index 000000000..f2311cda0
--- /dev/null
+++ b/src/contrib/service/scalarproduct/scalarproduct.h
@@ -0,0 +1,177 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2009, 2010, 2011, 2012, 2013 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     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
+     Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+ */
+/**
+ * @file   scalarproduct.h
+ * @brief  Scalar Product API Message Types
+ * @author Christian M. Fuchs
+ */
+#ifndef SCALARPRODUCT_H
+#define SCALARPRODUCT_H
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+/**
+ * Log an error message at log-level 'level' that indicates
+ * a failure of the command 'cmd' with the message given
+ * by gcry_strerror(rc).
+ */
+#define LOG_GCRY(level, cmd, rc) do { LOG (level, _ ( \
+                                             "`%s' failed at %s:%d with error: %s\n"), \
+                                           cmd, __FILE__, __LINE__, \
+                                           gcry_strerror (rc)); } while (0)
+
+
+/**
+ * Message type passed from client to service
+ * to initiate a request or responder role
+ */
+struct AliceComputationMessage
+{
+  /**
+   * GNUNET message header with type
+   * #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_CLIENT_TO_ALICE
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * how many elements the vector in payload contains
+   */
+  uint32_t element_count_total GNUNET_PACKED;
+
+  /**
+   * contained elements the vector in payload contains
+   */
+  uint32_t element_count_contained GNUNET_PACKED;
+
+  /**
+   * Always zero.
+   */
+  uint32_t reserved GNUNET_PACKED;
+
+  /**
+   * the transaction/session key used to identify a session
+   */
+  struct GNUNET_HashCode session_key;
+
+  /**
+   * the identity of a remote peer we want to communicate with
+   */
+  struct GNUNET_PeerIdentity peer;
+
+  /**
+   * followed by struct GNUNET_SCALARPRODUCT_Element[]
+   */
+};
+
+
+/**
+ * Message type passed from client to service
+ * to initiate a request or responder role
+ */
+struct BobComputationMessage
+{
+  /**
+   * GNUNET message header with type
+   * #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_CLIENT_TO_BOB
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * how many elements the vector in payload contains
+   */
+  uint32_t element_count_total GNUNET_PACKED;
+
+  /**
+   * contained elements the vector in payload contains
+   */
+  uint32_t element_count_contained GNUNET_PACKED;
+
+  /**
+   * Always zero.
+   */
+  uint32_t reserved GNUNET_PACKED;
+
+  /**
+   * the transaction/session key used to identify a session
+   */
+  struct GNUNET_HashCode session_key;
+
+  /**
+   * followed by struct GNUNET_SCALARPRODUCT_Element[]
+   */
+};
+
+
+/**
+ * multipart messages following `struct ComputationMessage`
+ */
+struct ComputationBobCryptodataMultipartMessage
+{
+  /**
+   * GNUNET message header
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * contained elements the vector in payload contains
+   */
+  uint32_t element_count_contained GNUNET_PACKED;
+
+  /**
+   * followed by struct GNUNET_SCALARPRODUCT_Element[]
+   */
+};
+
+
+/**
+ * Message type passed from service client
+ * to finalize a session as requester or responder
+ */
+struct ClientResponseMessage
+{
+  /**
+   * GNUNET message header
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * 0 if no product attached
+   */
+  uint32_t product_length GNUNET_PACKED;
+
+  /**
+   * Status information about the outcome of this session,
+   * An `enum GNUNET_SCALARPRODUCT_ResponseStatus` (in NBO).
+   */
+  uint32_t status GNUNET_PACKED;
+
+  /**
+   * Workaround for libgcrypt: -1 if negative, 0 if zero, else 1
+   */
+  int32_t range GNUNET_PACKED;
+
+  /**
+   * followed by product of length product_length (or nothing)
+   */
+};
+
+GNUNET_NETWORK_STRUCT_END
+
+#endif  /* SCALARPRODUCT_H */