src/connectivity/bluetooth/core/bt-host/sm/pairing_phase.cc

// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/connectivity/bluetooth/core/bt-host/public/pw_bluetooth_sapphire/internal/host/sm/pairing_phase.h"

#include "src/connectivity/bluetooth/core/bt-host/public/pw_bluetooth_sapphire/internal/host/common/log.h"
#include "src/connectivity/bluetooth/core/bt-host/public/pw_bluetooth_sapphire/internal/host/sm/smp.h"
#include "src/connectivity/bluetooth/core/bt-host/public/pw_bluetooth_sapphire/internal/host/sm/types.h"

namespace bt::sm {

PairingPhase::PairingPhase(PairingChannel::WeakPtr chan,
                           Listener::WeakPtr listener,
                           Role role)
    : sm_chan_(std::move(chan)),
      listener_(std::move(listener)),
      role_(role),
      has_failed_(false),
      weak_channel_handler_(nullptr) {}

void PairingPhase::SetPairingChannelHandler(PairingChannelHandler& self) {
  weak_channel_handler_ = WeakSelf(&self);
  sm_chan().SetChannelHandler(weak_channel_handler_.GetWeakPtr());
}

void PairingPhase::InvalidatePairingChannelHandler() {
  weak_channel_handler_.InvalidatePtrs();
}

void PairingPhase::OnFailure(Error error) {
  BT_ASSERT(!has_failed());
  bt_log(WARN, "sm", "pairing failed: %s", bt_str(error));
  has_failed_ = true;
  BT_ASSERT(listener_.is_alive());
  listener_->OnPairingFailed(error);
}

void PairingPhase::Abort(ErrorCode ecode) {
  BT_ASSERT(!has_failed());
  Error error(ecode);
  bt_log(INFO, "sm", "abort pairing: %s", bt_str(error));

  sm_chan().SendMessage(kPairingFailed, ecode);
  OnFailure(error);
}

void PairingPhase::HandleChannelClosed() {
  bt_log(WARN, "sm", "channel closed while pairing");

  OnFailure(Error(HostError::kLinkDisconnected));
}
}  // namespace bt::sm