Move weave packet to common location b/t generator and receiver

components/proximity_auth/ble/bluetooth_low_energy_weave_packet.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WEAVE_PACKET_H_

[Tim Song, 2016/06/27 23:16:10]

Also rename this file to something like weave_defines.h

[jingxuy, 2016/06/27 23:27:24]

Done.

+#define COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WEAVE_PACKET_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <vector>
+
+namespace proximity_auth {
+namespace weave {
+
+enum PacketType { DATA = 0x00, CONTROL = 0x01 };
+
+// Identify the action intended by the control packet.
+enum ControlCommand {
+  CONNECTION_REQUEST = 0x00,
+  CONNECTION_RESPONSE = 0x01,
+  CONNECTION_CLOSE = 0x02
+};
+
+// Sent with the ConnectionClose control packet.
+// Identify why the client/server wished to close the connection.
+enum ReasonForClose {
+  CLOSE_WITHOUT_ERROR = 0x00,
+  UNKNOWN_ERROR = 0x01,
+  NO_COMMON_VERSION_SUPPORTED = 0x02,
+  RECEIVED_PACKET_OUT_OF_SEQUENCE = 0x03,
+  APPLICATION_ERROR = 0x80
+};
+
+typedef std::vector<uint8_t> Packet;
+
+const uint16_t kMinConnectionRequestSize = 7;
+const uint16_t kMinConnectionResponseSize = 5;
+const uint16_t kMaxConnectionCloseSize = 3;
+const uint16_t kDefaultMaxPacketSize = 20;
+const uint16_t kWeaveVersion = 1;
+// Defer selecting the max packet size to the server.
+const uint16_t kSelectMaxPacketSize = 0;
+const uint8_t kMaxPacketCounter = 8;
+
+// Used only for tests.
+const uint8_t kByteDefaultMaxPacketSize = 20;
+const uint8_t kByteWeaveVersion = 1;
+const uint8_t kByteSelectMaxPacketSize = 0;
+const uint8_t kEmptyUpperByte = 0;
+
+}  // namespace weave
+}  // namespace proximity_auth
+
+#endif  // COMPONENTS_PROXIMITY_AUTH_BLE_BLUETOOTH_LOW_ENERGY_WEAVE_PACKET_H_