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/*
* Copyright 2019 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/fuzz/hci_layer_fuzz_client.h"
#include "fuzz/helpers.h"
namespace bluetooth {
namespace hci {
namespace fuzz {
using bluetooth::fuzz::GetArbitraryBytes;
using bluetooth::hci::AclView;
const ModuleFactory HciLayerFuzzClient::Factory = ModuleFactory([]() { return new HciLayerFuzzClient(); });
void HciLayerFuzzClient::Start() {
hci_ = GetDependency<hci::HciLayer>();
aclDevNull_ = new os::fuzz::DevNullQueue<AclView>(hci_->GetAclQueueEnd(), GetHandler());
aclDevNull_->Start();
aclInject_ = new os::fuzz::FuzzInjectQueue<AclBuilder>(hci_->GetAclQueueEnd(), GetHandler());
// Can't do security right now, due to the Encryption Change conflict between ACL manager & security
// security_interface_ = hci_->GetSecurityInterface(common::Bind([](EventView){}), GetHandler());
le_security_interface_ = hci_->GetLeSecurityInterface(GetHandler()->Bind([](LeMetaEventView) {}));
acl_connection_interface_ = hci_->GetAclConnectionInterface(
GetHandler()->Bind([](EventView) {}),
GetHandler()->Bind([](uint16_t, hci::ErrorCode) {}),
GetHandler()->Bind([](hci::ErrorCode, uint16_t, uint8_t, uint16_t, uint16_t) {}));
le_acl_connection_interface_ = hci_->GetLeAclConnectionInterface(
GetHandler()->Bind([](LeMetaEventView) {}),
GetHandler()->Bind([](uint16_t, hci::ErrorCode) {}),
GetHandler()->Bind([](hci::ErrorCode, uint16_t, uint8_t, uint16_t, uint16_t) {}));
le_advertising_interface_ = hci_->GetLeAdvertisingInterface(GetHandler()->Bind([](LeMetaEventView) {}));
le_scanning_interface_ = hci_->GetLeScanningInterface(GetHandler()->Bind([](LeMetaEventView) {}));
}
void HciLayerFuzzClient::Stop() {
aclDevNull_->Stop();
delete aclDevNull_;
delete aclInject_;
}
void HciLayerFuzzClient::injectArbitrary(FuzzedDataProvider& fdp) {
const uint8_t action = fdp.ConsumeIntegralInRange(0, 8);
switch (action) {
case 1:
injectAclData(GetArbitraryBytes(&fdp));
break;
case 2:
injectHciCommand(GetArbitraryBytes(&fdp));
break;
case 3:
// TODO: injectSecurityCommand(GetArbitraryBytes(&fdp));
break;
case 4:
injectLeSecurityCommand(GetArbitraryBytes(&fdp));
break;
case 5:
injectAclConnectionCommand(GetArbitraryBytes(&fdp));
break;
case 6:
injectLeAclConnectionCommand(GetArbitraryBytes(&fdp));
break;
case 7:
injectLeAdvertisingCommand(GetArbitraryBytes(&fdp));
break;
case 8:
injectLeScanningCommand(GetArbitraryBytes(&fdp));
break;
}
}
void HciLayerFuzzClient::injectAclData(std::vector<uint8_t> data) {
hci::AclView aclPacket = hci::AclView::FromBytes(data);
if (!aclPacket.IsValid()) {
return;
}
aclInject_->Inject(AclBuilder::FromView(aclPacket));
}
void HciLayerFuzzClient::injectHciCommand(std::vector<uint8_t> data) {
inject_command<CommandView, CommandBuilder>(data, hci_);
}
void HciLayerFuzzClient::injectSecurityCommand(std::vector<uint8_t> data) {
inject_command<SecurityCommandView, SecurityCommandBuilder>(data, security_interface_);
}
void HciLayerFuzzClient::injectLeSecurityCommand(std::vector<uint8_t> data) {
inject_command<LeSecurityCommandView, LeSecurityCommandBuilder>(data, le_security_interface_);
}
void HciLayerFuzzClient::injectAclConnectionCommand(std::vector<uint8_t> data) {
inject_command<AclCommandView, AclCommandBuilder>(data, acl_connection_interface_);
}
void HciLayerFuzzClient::injectLeAclConnectionCommand(std::vector<uint8_t> data) {
inject_command<AclCommandView, AclCommandBuilder>(data, le_acl_connection_interface_);
}
void HciLayerFuzzClient::injectLeAdvertisingCommand(std::vector<uint8_t> data) {
inject_command<LeAdvertisingCommandView, LeAdvertisingCommandBuilder>(data, le_advertising_interface_);
}
void HciLayerFuzzClient::injectLeScanningCommand(std::vector<uint8_t> data) {
inject_command<LeScanningCommandView, LeScanningCommandBuilder>(data, le_scanning_interface_);
}
} // namespace fuzz
} // namespace hci
} // namespace bluetooth
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