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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.
*/
#define LOG_TAG "l2cap2"
#include <future>
#include <memory>
#include "common/bidi_queue.h"
#include "hci/acl_manager.h"
#include "hci/address.h"
#include "hci/hci_layer.h"
#include "hci/hci_packets.h"
#include "l2cap/classic/internal/dumpsys_helper.h"
#include "l2cap/classic/internal/dynamic_channel_service_manager_impl.h"
#include "l2cap/classic/internal/fixed_channel_service_manager_impl.h"
#include "l2cap/classic/internal/link_manager.h"
#include "l2cap/classic/l2cap_classic_module.h"
#include "l2cap/internal/parameter_provider.h"
#include "l2cap_classic_module_generated.h"
#include "module.h"
#include "os/handler.h"
#include "os/log.h"
namespace bluetooth {
namespace l2cap {
namespace classic {
const ModuleFactory L2capClassicModule::Factory = ModuleFactory([]() { return new L2capClassicModule(); });
static SecurityEnforcementRejectAllImpl default_security_module_impl_;
struct L2capClassicModule::impl {
impl(os::Handler* l2cap_handler, hci::AclManager* acl_manager)
: l2cap_handler_(l2cap_handler), acl_manager_(acl_manager) {
dynamic_channel_service_manager_impl_.SetSecurityEnforcementInterface(&default_security_module_impl_);
dumpsys_helper_ = std::make_unique<internal::DumpsysHelper>(link_manager_);
}
os::Handler* l2cap_handler_;
hci::AclManager* acl_manager_;
l2cap::internal::ParameterProvider parameter_provider_;
internal::FixedChannelServiceManagerImpl fixed_channel_service_manager_impl_{l2cap_handler_};
internal::DynamicChannelServiceManagerImpl dynamic_channel_service_manager_impl_{l2cap_handler_};
internal::LinkManager link_manager_{l2cap_handler_, acl_manager_, &fixed_channel_service_manager_impl_,
&dynamic_channel_service_manager_impl_, ¶meter_provider_};
std::unique_ptr<internal::DumpsysHelper> dumpsys_helper_;
struct SecurityInterfaceImpl : public SecurityInterface {
SecurityInterfaceImpl(impl* module_impl) : module_impl_(module_impl) {}
void RegisterLinkSecurityInterfaceListener(os::Handler* handler, LinkSecurityInterfaceListener* listener) {
ASSERT(!registered_);
module_impl_->link_manager_.RegisterLinkSecurityInterfaceListener(handler, listener);
registered_ = true;
}
void InitiateConnectionForSecurity(hci::Address remote) override {
ASSERT(registered_);
module_impl_->link_manager_.InitiateConnectionForSecurity(remote);
}
void Unregister() override {
ASSERT(registered_);
module_impl_->link_manager_.RegisterLinkSecurityInterfaceListener(nullptr, nullptr);
registered_ = false;
}
impl* module_impl_;
bool registered_ = false;
} security_interface_impl_{this};
void Dump(
std::promise<flatbuffers::Offset<L2capClassicModuleData>> promise,
flatbuffers::FlatBufferBuilder* fb_builder) const;
};
L2capClassicModule::L2capClassicModule() {}
L2capClassicModule::~L2capClassicModule() {}
void L2capClassicModule::ListDependencies(ModuleList* list) const {
list->add<hci::AclManager>();
}
void L2capClassicModule::Start() {
pimpl_ = std::make_unique<impl>(GetHandler(), GetDependency<hci::AclManager>());
}
void L2capClassicModule::Stop() {
pimpl_.reset();
}
std::string L2capClassicModule::ToString() const {
return "L2cap Classic Module";
}
std::unique_ptr<FixedChannelManager> L2capClassicModule::GetFixedChannelManager() {
return std::unique_ptr<FixedChannelManager>(new FixedChannelManager(&pimpl_->fixed_channel_service_manager_impl_,
&pimpl_->link_manager_, pimpl_->l2cap_handler_));
}
std::unique_ptr<DynamicChannelManager> L2capClassicModule::GetDynamicChannelManager() {
return std::unique_ptr<DynamicChannelManager>(new DynamicChannelManager(
&pimpl_->dynamic_channel_service_manager_impl_, &pimpl_->link_manager_, pimpl_->l2cap_handler_));
}
void L2capClassicModule::InjectSecurityEnforcementInterface(
SecurityEnforcementInterface* security_enforcement_interface) {
if (security_enforcement_interface != nullptr) {
pimpl_->dynamic_channel_service_manager_impl_.SetSecurityEnforcementInterface(security_enforcement_interface);
} else {
pimpl_->dynamic_channel_service_manager_impl_.SetSecurityEnforcementInterface(&default_security_module_impl_);
}
}
SecurityInterface* L2capClassicModule::GetSecurityInterface(
os::Handler* handler, LinkSecurityInterfaceListener* listener) {
pimpl_->security_interface_impl_.RegisterLinkSecurityInterfaceListener(handler, listener);
return &pimpl_->security_interface_impl_;
}
void L2capClassicModule::SetLinkPropertyListener(os::Handler* handler, LinkPropertyListener* listener) {
pimpl_->link_manager_.RegisterLinkPropertyListener(handler, listener);
}
void L2capClassicModule::impl::Dump(
std::promise<flatbuffers::Offset<L2capClassicModuleData>> promise,
flatbuffers::FlatBufferBuilder* fb_builder) const {
auto title = fb_builder->CreateString("----- L2cap Classic Dumpsys -----");
std::vector<flatbuffers::Offset<bluetooth::l2cap::classic::LinkData>> link_offsets =
dumpsys_helper_->DumpActiveLinks(fb_builder);
auto active_links = fb_builder->CreateVector(link_offsets);
L2capClassicModuleDataBuilder builder(*fb_builder);
builder.add_title(title);
builder.add_active_links(active_links);
flatbuffers::Offset<L2capClassicModuleData> dumpsys_data = builder.Finish();
promise.set_value(dumpsys_data);
}
DumpsysDataFinisher L2capClassicModule::GetDumpsysData(flatbuffers::FlatBufferBuilder* fb_builder) const {
ASSERT(fb_builder != nullptr);
std::promise<flatbuffers::Offset<L2capClassicModuleData>> promise;
auto future = promise.get_future();
pimpl_->Dump(std::move(promise), fb_builder);
auto dumpsys_data = future.get();
return [dumpsys_data](DumpsysDataBuilder* dumpsys_builder) {
dumpsys_builder->add_l2cap_classic_dumpsys_data(dumpsys_data);
};
}
} // namespace classic
} // namespace l2cap
} // namespace bluetooth
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