1 // Copyright 2023 The Pigweed Authors
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 // use this file except in compliance with the License. You may obtain a copy of
5 // the License at
6 //
7 // https://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 // License for the specific language governing permissions and limitations under
13 // the License.
14
15 #include "pw_bluetooth_sapphire/internal/host/sm/pairing_phase.h"
16
17 #include "pw_bluetooth_sapphire/internal/host/common/log.h"
18 #include "pw_bluetooth_sapphire/internal/host/sm/smp.h"
19 #include "pw_bluetooth_sapphire/internal/host/sm/types.h"
20
21 namespace bt::sm {
22
PairingPhase(PairingChannel::WeakPtr chan,Listener::WeakPtr listener,Role role)23 PairingPhase::PairingPhase(PairingChannel::WeakPtr chan,
24 Listener::WeakPtr listener,
25 Role role)
26 : sm_chan_(std::move(chan)),
27 listener_(std::move(listener)),
28 role_(role),
29 has_failed_(false),
30 weak_channel_handler_(nullptr) {}
31
SetPairingChannelHandler(PairingChannelHandler & self)32 void PairingPhase::SetPairingChannelHandler(PairingChannelHandler& self) {
33 weak_channel_handler_ = WeakSelf(&self);
34 sm_chan().SetChannelHandler(weak_channel_handler_.GetWeakPtr());
35 }
36
InvalidatePairingChannelHandler()37 void PairingPhase::InvalidatePairingChannelHandler() {
38 weak_channel_handler_.InvalidatePtrs();
39 }
40
OnFailure(Error error)41 void PairingPhase::OnFailure(Error error) {
42 PW_CHECK(!has_failed());
43 bt_log(WARN, "sm", "pairing failed: %s", bt_str(error));
44 has_failed_ = true;
45 PW_CHECK(listener_.is_alive());
46 listener_->OnPairingFailed(error);
47 }
48
Abort(ErrorCode ecode)49 void PairingPhase::Abort(ErrorCode ecode) {
50 PW_CHECK(!has_failed());
51 Error error(ecode);
52 bt_log(INFO, "sm", "abort pairing: %s", bt_str(error));
53
54 sm_chan().SendMessage(kPairingFailed, ecode);
55 OnFailure(error);
56 }
57
HandleChannelClosed()58 void PairingPhase::HandleChannelClosed() {
59 bt_log(WARN, "sm", "channel closed while pairing");
60
61 OnFailure(Error(HostError::kLinkDisconnected));
62 }
63 } // namespace bt::sm
64