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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 <unordered_map>
#include "l2cap/cid.h"
#include "l2cap/classic/internal/link.h"
#include "l2cap/classic/security_policy.h"
#include "l2cap/internal/dynamic_channel_impl.h"
#include "l2cap/internal/sender.h"
#include "l2cap/psm.h"
#include "os/handler.h"
#include "os/log.h"
namespace bluetooth {
namespace l2cap {
namespace internal {
DynamicChannelImpl::DynamicChannelImpl(Psm psm, Cid cid, Cid remote_cid, l2cap::internal::ILink* link,
os::Handler* l2cap_handler)
: psm_(psm), cid_(cid), remote_cid_(remote_cid), link_(link), l2cap_handler_(l2cap_handler),
device_(link->GetDevice()) {
ASSERT(cid_ > 0);
ASSERT(remote_cid_ > 0);
ASSERT(link_ != nullptr);
ASSERT(l2cap_handler_ != nullptr);
}
hci::AddressWithType DynamicChannelImpl::GetDevice() const {
return device_;
}
void DynamicChannelImpl::RegisterOnCloseCallback(DynamicChannel::OnCloseCallback on_close_callback) {
ASSERT_LOG(on_close_callback_.IsEmpty(), "OnCloseCallback can only be registered once");
// If channel is already closed, call the callback immediately without saving it
if (closed_) {
on_close_callback.Invoke(close_reason_);
return;
}
on_close_callback_ = std::move(on_close_callback);
}
void DynamicChannelImpl::Close() {
if (link_ == nullptr) {
LOG_ERROR("Channel is already closed");
return;
}
link_->SendDisconnectionRequest(cid_, remote_cid_);
}
void DynamicChannelImpl::OnClosed(hci::ErrorCode status) {
ASSERT_LOG(!closed_, "Device %s Cid 0x%x closed twice, old status 0x%x, new status 0x%x", device_.ToString().c_str(),
cid_, static_cast<int>(close_reason_), static_cast<int>(status));
closed_ = true;
close_reason_ = status;
link_ = nullptr;
l2cap_handler_ = nullptr;
on_close_callback_.InvokeIfNotEmpty(close_reason_);
on_close_callback_ = {};
}
std::string DynamicChannelImpl::ToString() {
std::ostringstream ss;
ss << "Device " << device_ << "Psm 0x" << std::hex << psm_ << " Cid 0x" << std::hex << cid_;
return ss.str();
}
} // namespace internal
} // namespace l2cap
} // namespace bluetooth
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