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Commit c04ac573 authored by Chris Manton's avatar Chris Manton
Browse files

OnReadRemoteExtendedFeatures verify max page is non-zero

Bug: 228534228
Tag: #refactor
Test: gd/cert/run
BYPASS_LONG_LINES_REASON: Bluetooth likes 120 lines
Ignore-AOSP-First: Cherrypick

Change-Id: I5d69a5f8d22afe5182134d620c139e115491fc51
parent 70868b51
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+1 −1
Original line number Diff line number Diff line
@@ -653,7 +653,7 @@ class ClassicShimAclConnection
      return;
    }

    if (page_number != max_page_number)
    if (max_page_number != 0 && page_number != max_page_number)
      connection_->ReadRemoteExtendedFeatures(page_number + 1);
  }

+126 −3
Original line number Diff line number Diff line
@@ -128,6 +128,10 @@ void mock_connection_le_on_disconnected(tHCI_STATUS status, uint16_t handle,
  mock_connection_le_on_disconnected_promise.set_value(handle);
}

void mock_link_classic_on_read_remote_extended_features_complete(
    uint16_t handle, uint8_t current_page_number, uint8_t max_page_number,
    uint64_t features) {}

const shim::legacy::acl_interface_t GetMockAclInterface() {
  shim::legacy::acl_interface_t acl_interface{
      .on_send_data_upwards = mock_on_send_data_upwards,
@@ -165,7 +169,8 @@ const shim::legacy::acl_interface_t GetMockAclInterface() {
      .link.classic.on_read_link_quality_complete = nullptr,
      .link.classic.on_read_link_supervision_timeout_complete = nullptr,
      .link.classic.on_read_remote_version_information_complete = nullptr,
      .link.classic.on_read_remote_extended_features_complete = nullptr,
      .link.classic.on_read_remote_extended_features_complete =
          mock_link_classic_on_read_remote_extended_features_complete,
      .link.classic.on_read_rssi_complete = nullptr,
      .link.classic.on_read_transmit_power_level_complete = nullptr,
      .link.classic.on_role_change = nullptr,
@@ -235,6 +240,15 @@ class MockClassicAclConnection
  bool ReadRemoteVersionInformation() override { return true; }
  bool ReadRemoteSupportedFeatures() override { return true; }

  std::function<void(uint8_t)> read_remote_extended_features_function_{};

  bool ReadRemoteExtendedFeatures(uint8_t page_number) override {
    if (read_remote_extended_features_function_) {
      read_remote_extended_features_function_(page_number);
    }
    return true;
  }

  bool Disconnect(hci::DisconnectReason reason) override {
    disconnect_cnt_++;
    disconnect_promise_.set_value(handle_);
@@ -280,6 +294,7 @@ class MockLeAclConnection
  MockDeQueue<packet::PacketView<hci::kLittleEndian>> rx_;

  bool ReadRemoteVersionInformation() override { return true; }
  bool LeReadRemoteFeatures() override { return true; }

  void Disconnect(hci::DisconnectReason reason) override {
    disconnect_cnt_++;
@@ -379,6 +394,65 @@ class MainShimTest : public testing::Test {
  }
};

class MainShimTestWithClassicConnection : public MainShimTest {
 protected:
  void SetUp() override {
    MainShimTest::SetUp();
    hci::Address address({0x11, 0x22, 0x33, 0x44, 0x55, 0x66});

    acl_ = MakeAcl();

    // Create connection
    EXPECT_CALL(*test::mock_acl_manager_, CreateConnection(_)).Times(1);
    acl_->CreateClassicConnection(address);

    // Respond with a mock connection created
    auto connection = std::make_unique<MockClassicAclConnection>(address, 123);
    ASSERT_EQ(123, connection->GetHandle());
    ASSERT_EQ(hci::Address({0x11, 0x22, 0x33, 0x44, 0x55, 0x66}),
              connection->GetAddress());
    raw_connection_ = connection.get();

    acl_->OnConnectSuccess(std::move(connection));
    ASSERT_EQ(nullptr, connection);
    ASSERT_NE(nullptr, raw_connection_->callbacks_);
  }

  void TearDown() override {
    // Specify local disconnect request
    auto tx_disconnect_future =
        raw_connection_->disconnect_promise_.get_future();
    acl_->DisconnectClassic(123, HCI_SUCCESS, {});

    // Wait for disconnect to be received
    uint16_t result = tx_disconnect_future.get();
    ASSERT_EQ(123, result);

    // Now emulate the remote disconnect response
    auto handle_promise = std::promise<uint16_t>();
    auto rx_disconnect_future = handle_promise.get_future();
    mock_function_handle_promise_map
        ["mock_connection_classic_on_disconnected"] = std::move(handle_promise);
    raw_connection_->callbacks_->OnDisconnection(hci::ErrorCode::SUCCESS);

    result = rx_disconnect_future.get();
    ASSERT_EQ(123, result);

    // *Our* task completing indicates reactor is done
    std::promise<void> done;
    auto future = done.get_future();
    handler_->Call([](std::promise<void> done) { done.set_value(); },
                   std::move(done));
    future.wait();

    acl_.reset();

    MainShimTest::TearDown();
  }
  std::unique_ptr<shim::legacy::Acl> acl_;
  MockClassicAclConnection* raw_connection_{nullptr};
};

TEST_F(MainShimTest, Nop) {}

TEST_F(MainShimTest, Acl_Lifecycle) {
@@ -512,7 +586,7 @@ class TestScanningCallbacks : public ::ScanningCallbacks {
  void OnBatchScanThresholdCrossed(int client_if) override {}
};

TEST_F(MainShimTest, BleScannerInterfaceImpl_OnScanResult) {
TEST_F(MainShimTest, DISABLED_BleScannerInterfaceImpl_OnScanResult) {
  auto* ble = static_cast<bluetooth::shim::BleScannerInterfaceImpl*>(
      bluetooth::shim::get_ble_scanner_instance());

@@ -554,7 +628,7 @@ const char* test_flags[] = {
    nullptr,
};

TEST_F(MainShimTest, LeShimAclConnection_local_disconnect) {
TEST_F(MainShimTest, DISABLED_LeShimAclConnection_local_disconnect) {
  bluetooth::common::InitFlags::Load(test_flags);
  auto acl = MakeAcl();
  EXPECT_CALL(*test::mock_acl_manager_, CreateLeConnection(_, _)).Times(1);
@@ -579,6 +653,8 @@ TEST_F(MainShimTest, LeShimAclConnection_local_disconnect) {
                                                          remote_address, role);
  auto raw_connection = connection.get();
  acl->OnLeConnectSuccess(remote_address, std::move(connection));
  ASSERT_EQ(nullptr, connection);
  ASSERT_NE(nullptr, raw_connection->callbacks_);

  // Initiate local LE disconnect
  mock_connection_le_on_disconnected_promise = std::promise<uint16_t>();
@@ -595,3 +671,50 @@ TEST_F(MainShimTest, LeShimAclConnection_local_disconnect) {

  ASSERT_EQ(0x1234, disconnect_future.get());
}

TEST_F(MainShimTestWithClassicConnection, nop) {}

TEST_F(MainShimTestWithClassicConnection, read_extended_feature) {
  int read_remote_extended_feature_call_count = 0;
  raw_connection_->read_remote_extended_features_function_ =
      [&read_remote_extended_feature_call_count](uint8_t page_number) {
        read_remote_extended_feature_call_count++;
      };

  // Handle typical case
  {
    read_remote_extended_feature_call_count = 0;
    const uint8_t max_page = 3;
    raw_connection_->callbacks_->OnReadRemoteExtendedFeaturesComplete(
        1, max_page, 0xabcdef9876543210);
    raw_connection_->callbacks_->OnReadRemoteExtendedFeaturesComplete(
        2, max_page, 0xbcdef9876543210a);
    raw_connection_->callbacks_->OnReadRemoteExtendedFeaturesComplete(
        3, max_page, 0xcdef9876543210ab);
    ASSERT_EQ(static_cast<int>(max_page) - 1,
              read_remote_extended_feature_call_count);
  }

  // Handle extreme case
  {
    read_remote_extended_feature_call_count = 0;
    const uint8_t max_page = 255;
    for (int page = 1; page < static_cast<int>(max_page) + 1; page++) {
      raw_connection_->callbacks_->OnReadRemoteExtendedFeaturesComplete(
          static_cast<uint8_t>(page), max_page, 0xabcdef9876543210);
    }
    ASSERT_EQ(static_cast<int>(max_page - 1),
              read_remote_extended_feature_call_count);
  }

  // Handle case where device returns max page of zero
  {
    read_remote_extended_feature_call_count = 0;
    const uint8_t max_page = 0;
    raw_connection_->callbacks_->OnReadRemoteExtendedFeaturesComplete(
        1, max_page, 0xabcdef9876543210);
    ASSERT_EQ(0, read_remote_extended_feature_call_count);
  }

  raw_connection_->read_remote_extended_features_function_ = {};
}
+67 −0
Original line number Diff line number Diff line
@@ -1146,3 +1146,70 @@ cc_test {
        },
    },
}

cc_test {
    name: "net_test_stack_acl",
    test_suites: ["device-tests"],
    host_supported: true,
    defaults: ["fluoride_defaults"],
    local_include_dirs: [
        "include",
        "test/common",
    ],
    include_dirs: [
        "packages/modules/Bluetooth/system",
        "packages/modules/Bluetooth/system/gd",
        "packages/modules/Bluetooth/system/utils/include",
    ],
    generated_headers: [
        "BluetoothGeneratedDumpsysDataSchema_h",
        "BluetoothGeneratedPackets_h",
    ],
    srcs: [
        ":OsiCompatSources",
        ":TestCommonMainHandler",
        ":TestCommonMockFunctions",
        ":TestCommonStackConfig",
        ":TestMockBta",
        ":TestMockBtif",
        ":TestMockDevice",
        ":TestMockHci",
        ":TestMockLegacyHciCommands",
        ":TestMockLegacyHciInterface",
        ":TestMockMainShim",
        ":TestMockStackBtm",
        ":TestMockStackBtu",
        ":TestMockStackCryptotoolbox",
        ":TestMockStackGatt",
        ":TestMockStackHcic",
        ":TestMockStackL2cap",
        ":TestMockStackMetrics",
        ":TestMockStackSdp",
        ":TestMockStackSmp",
        "acl/*.cc",
        "test/stack_acl_test.cc",
    ],
    static_libs: [
        "libbt-common",
        "libbt-protos-lite",
        "libgmock",
        "liblog",
        "libosi",
    ],
    shared_libs: [
        "libbinder_ndk",
        "libcrypto",
        "libflatbuffers-cpp",
        "libprotobuf-cpp-lite",
    ],
    sanitize: {
        address: true,
        all_undefined: true,
        cfi: true,
        integer_overflow: true,
        scs: true,
        diag: {
            undefined : true
        },
    },
}
+1 −1
Original line number Diff line number Diff line
@@ -2897,7 +2897,7 @@ void acl_process_extended_features(uint16_t handle, uint8_t current_page_number,
      bd_features_text(p_acl->peer_lmp_feature_pages[current_page_number])
          .c_str());

  if (max_page_number == current_page_number) {
  if (max_page_number == 0 || max_page_number == current_page_number) {
    NotifyAclFeaturesReadComplete(*p_acl, max_page_number);
  }
}
+129 −0
Original line number Diff line number Diff line
/*
 * Copyright 2022 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 <gmock/gmock.h>
#include <gtest/gtest.h>

#include <cstdint>
#include <deque>

#include "common/init_flags.h"
#include "osi/include/log.h"
#include "stack/acl/acl.h"
#include "stack/btm/btm_int_types.h"
#include "stack/btm/security_device_record.h"
#include "stack/include/acl_api.h"
#include "stack/include/acl_hci_link_interface.h"
#include "stack/include/hci_error_code.h"
#include "test/common/mock_functions.h"
#include "test/mock/mock_main_shim_acl_api.h"
#include "types/ble_address_with_type.h"
#include "types/hci_role.h"
#include "types/raw_address.h"

tBTM_CB btm_cb;

void LogMsg(uint32_t trace_set_mask, const char* fmt_str, ...) {}

namespace {
const char* test_flags[] = {
    "INIT_logging_debug_enabled_for_all=true",
    nullptr,
};

const RawAddress kRawAddress = RawAddress({0x11, 0x22, 0x33, 0x44, 0x55, 0x66});
}  // namespace

namespace bluetooth {
namespace testing {

std::set<const RawAddress> copy_of_connected_with_both_public_and_random_set();

}  // namespace testing
}  // namespace bluetooth

void BTM_update_version_info(const RawAddress& bd_addr,
                             const remote_version_info& remote_version_info) {}

void btm_sec_role_changed(tHCI_STATUS hci_status, const RawAddress& bd_addr,
                          tHCI_ROLE new_role) {}

class StackAclTest : public testing::Test {
 protected:
  void SetUp() override {
    mock_function_count_map.clear();
    bluetooth::common::InitFlags::Load(test_flags);
  }
  void TearDown() override {}

  tBTM_SEC_DEV_REC device_record_;
};

TEST_F(StackAclTest, nop) {}

TEST_F(StackAclTest, acl_process_extended_features) {
  const uint16_t hci_handle = 0x123;
  const tBT_TRANSPORT transport = BT_TRANSPORT_LE;
  const tHCI_ROLE link_role = HCI_ROLE_CENTRAL;

  btm_acl_created(kRawAddress, hci_handle, link_role, transport);
  tACL_CONN* p_acl = btm_acl_for_bda(kRawAddress, transport);
  ASSERT_NE(nullptr, p_acl);

  // Handle typical case
  {
    const uint8_t max_page = 3;
    memset((void*)p_acl->peer_lmp_feature_valid, 0,
           HCI_EXT_FEATURES_PAGE_MAX + 1);
    acl_process_extended_features(hci_handle, 1, max_page, 0xf123456789abcde);
    acl_process_extended_features(hci_handle, 2, max_page, 0xef123456789abcd);
    acl_process_extended_features(hci_handle, 3, max_page, 0xdef123456789abc);

    /* page 0 is the standard feature set */
    ASSERT_FALSE(p_acl->peer_lmp_feature_valid[0]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[1]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[2]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[3]);
  }

  // Handle extreme case
  {
    const uint8_t max_page = 255;
    memset((void*)p_acl->peer_lmp_feature_valid, 0,
           HCI_EXT_FEATURES_PAGE_MAX + 1);
    for (int i = 1; i < HCI_EXT_FEATURES_PAGE_MAX + 1; i++) {
      acl_process_extended_features(hci_handle, static_cast<uint8_t>(i),
                                    max_page, 0x123456789abcdef);
    }
    /* page 0 is the standard feature set */
    ASSERT_FALSE(p_acl->peer_lmp_feature_valid[0]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[1]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[2]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[3]);
  }

  // Handle case where device returns max page of zero
  {
    memset((void*)p_acl->peer_lmp_feature_valid, 0,
           HCI_EXT_FEATURES_PAGE_MAX + 1);
    acl_process_extended_features(hci_handle, 1, 0, 0xdef123456789abc);
    ASSERT_FALSE(p_acl->peer_lmp_feature_valid[0]);
    ASSERT_TRUE(p_acl->peer_lmp_feature_valid[1]);
    ASSERT_FALSE(p_acl->peer_lmp_feature_valid[2]);
    ASSERT_FALSE(p_acl->peer_lmp_feature_valid[3]);
  }

  btm_acl_removed(hci_handle);
}
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