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122 lines
3.1 KiB
122 lines
3.1 KiB
/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "hal/fuzz/fuzz_hci_hal.h"
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#include "fuzz/helpers.h"
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#include "hci/fuzz/status_vs_complete_commands.h"
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namespace bluetooth {
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namespace hal {
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namespace fuzz {
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using bluetooth::fuzz::GetArbitraryBytes;
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void FuzzHciHal::registerIncomingPacketCallback(HciHalCallbacks* callbacks) {
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callbacks_ = callbacks;
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}
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void FuzzHciHal::unregisterIncomingPacketCallback() {
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callbacks_ = nullptr;
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}
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void FuzzHciHal::injectArbitrary(FuzzedDataProvider& fdp) {
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const uint8_t action = fdp.ConsumeIntegralInRange(0, 4);
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switch (action) {
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case 1:
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injectAclData(GetArbitraryBytes(&fdp));
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break;
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case 2:
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injectHciEvent(GetArbitraryBytes(&fdp));
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break;
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case 3:
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injectScoData(GetArbitraryBytes(&fdp));
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break;
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case 4:
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injectIsoData(GetArbitraryBytes(&fdp));
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break;
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}
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}
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void FuzzHciHal::sendHciCommand(HciPacket packet) {
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hci::CommandView command = hci::CommandView::FromBytes(packet);
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if (!command.IsValid()) {
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return;
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}
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waiting_opcode_ = command.GetOpCode();
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waiting_for_status_ = hci::fuzz::uses_command_status(waiting_opcode_);
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}
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void FuzzHciHal::injectHciEvent(std::vector<uint8_t> data) {
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hci::EventView event = hci::EventView::FromBytes(data);
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if (!event.IsValid()) {
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return;
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}
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hci::CommandCompleteView complete = hci::CommandCompleteView::Create(event);
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if (complete.IsValid()) {
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if (waiting_for_status_ || complete.GetCommandOpCode() != waiting_opcode_) {
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return;
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}
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} else if (!waiting_for_status_) {
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return;
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}
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hci::CommandStatusView status = hci::CommandStatusView::Create(event);
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if (status.IsValid()) {
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if (!waiting_for_status_ || status.GetCommandOpCode() != waiting_opcode_) {
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return;
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}
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} else if (waiting_for_status_) {
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return;
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}
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callbacks_->hciEventReceived(data);
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}
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void FuzzHciHal::injectAclData(std::vector<uint8_t> data) {
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hci::AclView aclPacket = hci::AclView::FromBytes(data);
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if (!aclPacket.IsValid()) {
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return;
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}
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callbacks_->aclDataReceived(data);
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}
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void FuzzHciHal::injectScoData(std::vector<uint8_t> data) {
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hci::ScoView scoPacket = hci::ScoView::FromBytes(data);
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if (!scoPacket.IsValid()) {
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return;
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}
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callbacks_->scoDataReceived(data);
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}
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void FuzzHciHal::injectIsoData(std::vector<uint8_t> data) {
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hci::IsoView isoPacket = hci::IsoView::FromBytes(data);
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if (!isoPacket.IsValid()) {
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return;
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}
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callbacks_->isoDataReceived(data);
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}
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const ModuleFactory FuzzHciHal::Factory = ModuleFactory([]() { return new FuzzHciHal(); });
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} // namespace fuzz
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} // namespace hal
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} // namespace bluetooth
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