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Commit 13b6312d authored by Myles Watson's avatar Myles Watson
Browse files

PDL: HCI packet definition 

Test: Comparison with the SPEC
      bluetooth_test_gd --gtest_filter="*Acl*"
Change-Id: I48fcd2655edb54d831f8b395de9a209c46049189
parent 3cfe4e40

system/gd/Android.bp

+4 −0
Original line number Diff line number Diff line
@@ -103,8 +103,12 @@ cc_test { 
    },

    srcs: [

        ":BluetoothCommonTestSources",

        ":BluetoothHciTestSources",

        ":BluetoothPacketTestSources",

    ],

    generated_headers : [

        "BluetoothHciGeneratedPackets_h",

    ],

    static_libs : [

        "libbluetooth_gd",

    ],

system/gd/hci/Android.bp

0 → 100644
+20 −0
Original line number Diff line number Diff line 
genrule {

    name: "BluetoothHciGeneratedPackets_h",

    tools: [

        "bluetooth_packetgen",

    ],

    cmd: "mkdir -p $(genDir)/hci/; $(location bluetooth_packetgen) < $(in) > $(genDir)/hci/generated_packets.h 2>/dev/null",

    srcs: [

        "hci.pdl",

    ],

    out: [

        "hci/generated_packets.h",

    ],

}



filegroup {

    name: "BluetoothHciTestSources",

    srcs: [

        "acl_builder_test.cc",

    ],

}

system/gd/hci/acl_builder_test.cc

0 → 100644
+165 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2018 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#include "hci/generated_packets.h"



#include <gtest/gtest.h>

#include <forward_list>

#include <memory>



#include "os/log.h"

#include "packet/bit_inserter.h"

#include "packet/raw_builder.h"



using bluetooth::packet::BitInserter;

using bluetooth::packet::RawBuilder;

using std::vector;



namespace {

vector<uint8_t> information_request = {

    0xfe, 0x2e, 0x0a, 0x00, 0x06, 0x00, 0x01, 0x00, 0x0a, 0x02, 0x02, 0x00, 0x02, 0x00,

};

// 0x00, 0x01, 0x02, 0x03, ...

vector<uint8_t> counting_bytes;

// 0xFF, 0xFE, 0xFD, 0xFC, ...

vector<uint8_t> counting_down_bytes;

const size_t count_size = 0x8;



}  // namespace



namespace bluetooth {

namespace hci {



class AclBuilderTest : public ::testing::Test {

 public:

  AclBuilderTest() {

    counting_bytes.reserve(count_size);

    counting_down_bytes.reserve(count_size);

    for (size_t i = 0; i < count_size; i++) {

      counting_bytes.push_back(i);

      counting_down_bytes.push_back(~i);

    }

  }

  ~AclBuilderTest() = default;

};



TEST(AclBuilderTest, buildAclCount) {

  uint16_t handle = 0x0314;

  PacketBoundaryFlag packet_boundary_flag = PacketBoundaryFlag::FIRST_AUTOMATICALLY_FLUSHABLE;

  BroadcastFlag broadcast_flag = BroadcastFlag::ACTIVE_SLAVE_BROADCAST;



  std::unique_ptr<RawBuilder> count_payload = std::make_unique<RawBuilder>();

  count_payload->AddOctets(counting_bytes);

  ASSERT_EQ(counting_bytes.size(), count_payload->size());



  std::unique_ptr<AclPacketBuilder> count_packet =

      AclPacketBuilder::Create(handle, packet_boundary_flag, broadcast_flag, std::move(count_payload));



  ASSERT_EQ(counting_bytes.size() + 4, count_packet->size());



  std::shared_ptr<std::vector<uint8_t>> count_packet_bytes = std::make_shared<std::vector<uint8_t>>();

  BitInserter it(*count_packet_bytes);

  count_packet->Serialize(it);



  PacketView<true> count_packet_bytes_view(count_packet_bytes);

  AclPacketView count_packet_view(count_packet_bytes_view);



  ASSERT_EQ(handle, count_packet_view.GetHandle());

  ASSERT_EQ(packet_boundary_flag, count_packet_view.GetPacketBoundaryFlag());

  ASSERT_EQ(broadcast_flag, count_packet_view.GetBroadcastFlag());

  PacketView<true> count_view = count_packet_view.GetPayload();



  ASSERT_EQ(count_view.size(), counting_bytes.size());

  for (size_t i = 0; i < count_view.size(); i++) {

    ASSERT_EQ(count_view[i], counting_bytes[i]);

  }

}



TEST(AclBuilderTest, buildAclCountInverted) {

  uint16_t handle = 0x0304;

  PacketBoundaryFlag packet_boundary_flag = PacketBoundaryFlag::CONTINUING_FRAGMENT;

  BroadcastFlag broadcast_flag = BroadcastFlag::POINT_TO_POINT;



  std::unique_ptr<RawBuilder> counting_down_bytes_payload = std::make_unique<RawBuilder>();

  counting_down_bytes_payload->AddOctets(counting_down_bytes);

  ASSERT_EQ(counting_down_bytes.size(), counting_down_bytes_payload->size());



  std::unique_ptr<AclPacketBuilder> counting_down_bytes_packet =

      AclPacketBuilder::Create(handle, packet_boundary_flag, broadcast_flag, std::move(counting_down_bytes_payload));



  ASSERT_EQ(counting_down_bytes.size() + 4, counting_down_bytes_packet->size());



  std::shared_ptr<std::vector<uint8_t>> counting_down_bytes_packet_bytes = std::make_shared<std::vector<uint8_t>>();

  BitInserter it(*counting_down_bytes_packet_bytes);

  counting_down_bytes_packet->Serialize(it);

  PacketView<true> counting_down_bytes_packet_bytes_view(counting_down_bytes_packet_bytes);

  AclPacketView counting_down_bytes_packet_view(counting_down_bytes_packet_bytes_view);



  ASSERT_EQ(handle, counting_down_bytes_packet_view.GetHandle());

  ASSERT_EQ(packet_boundary_flag, counting_down_bytes_packet_view.GetPacketBoundaryFlag());

  ASSERT_EQ(broadcast_flag, counting_down_bytes_packet_view.GetBroadcastFlag());

  PacketView<true> counting_down_bytes_view = counting_down_bytes_packet_view.GetPayload();



  ASSERT_EQ(counting_down_bytes_view.size(), counting_down_bytes.size());

  for (size_t i = 0; i < counting_down_bytes_view.size(); i++) {

    ASSERT_EQ(counting_down_bytes_view[i], counting_down_bytes[i]);

  }

}



TEST(AclBuilderTest, buildInformationRequest) {

  uint16_t handle = 0x0efe;

  PacketBoundaryFlag packet_boundary_flag = PacketBoundaryFlag::FIRST_AUTOMATICALLY_FLUSHABLE;

  BroadcastFlag broadcast_flag = BroadcastFlag::POINT_TO_POINT;



  std::vector<uint8_t> payload_bytes(information_request.begin() + 4, information_request.end());

  std::unique_ptr<RawBuilder> payload = std::make_unique<RawBuilder>();

  payload->AddOctets(payload_bytes);

  ASSERT_EQ(payload_bytes.size(), payload->size());



  std::unique_ptr<AclPacketBuilder> packet =

      AclPacketBuilder::Create(handle, packet_boundary_flag, broadcast_flag, std::move(payload));



  ASSERT_EQ(information_request.size(), packet->size());



  std::shared_ptr<std::vector<uint8_t>> packet_bytes = std::make_shared<std::vector<uint8_t>>();

  BitInserter it(*packet_bytes);

  packet->Serialize(it);

  PacketView<true> packet_bytes_view(packet_bytes);

  AclPacketView packet_view(packet_bytes_view);



  ASSERT_EQ(packet_bytes->size(), information_request.size());

  for (size_t i = 0; i < packet_bytes->size(); i++) {

    ASSERT_EQ((*packet_bytes)[i], information_request[i]);

  }



  ASSERT_EQ(handle, packet_view.GetHandle());

  ASSERT_EQ(packet_boundary_flag, packet_view.GetPacketBoundaryFlag());

  ASSERT_EQ(broadcast_flag, packet_view.GetBroadcastFlag());

  PacketView<true> payload_view = packet_view.GetPayload();



  ASSERT_EQ(payload_view.size(), payload_bytes.size());

  for (size_t i = 0; i < payload_view.size(); i++) {

    ASSERT_EQ(payload_view[i], payload_bytes[i]);

  }



  ASSERT_EQ(packet_view.size(), information_request.size());

  for (size_t i = 0; i < packet_view.size(); i++) {

    ASSERT_EQ(packet_view[i], information_request[i]);

  }

}



}  // namespace hci

}  // namespace bluetooth