1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Copyright (C) 2018 Apple Inc. All rights reserved.
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are
8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above
11 // copyright notice, this list of conditions and the following disclaimer
12 // in the documentation and/or other materials provided with the
14 // * Neither the name of Google Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from
16 // this software without specific prior written permission.
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include "FidoConstants.h"
35 #include "FidoHidPacket.h"
36 #include <wtf/Deque.h>
37 #include <wtf/Optional.h>
38 #include <wtf/Vector.h>
42 // Represents HID message format defined by the specification at
43 // https://fidoalliance.org/specs/fido-v2.0-ps-20170927/fido-client-to-authenticator-protocol-v2.0-ps-20170927.html#message-and-packet-structure
44 class WEBCORE_EXPORT FidoHidMessage {
45 WTF_MAKE_NONCOPYABLE(FidoHidMessage);
47 // Static functions to create CTAP/U2F HID commands.
48 static std::optional<FidoHidMessage> create(uint32_t channelId, FidoHidDeviceCommand, const Vector<uint8_t>& data);
50 // Reconstruct a message from serialized message data.
51 static std::optional<FidoHidMessage> createFromSerializedData(const Vector<uint8_t>&);
53 FidoHidMessage(FidoHidMessage&& that) = default;
54 FidoHidMessage& operator=(FidoHidMessage&& other) = default;
56 bool messageComplete() const;
57 Vector<uint8_t> getMessagePayload() const;
58 // Pop front of queue with next packet.
59 Vector<uint8_t> popNextPacket();
60 // Adds a continuation packet to the packet list, from the serialized
62 bool addContinuationPacket(const Vector<uint8_t>&);
64 size_t numPackets() const;
65 uint32_t channelId() const { return m_channelId; }
66 FidoHidDeviceCommand cmd() const { return m_cmd; }
67 const Deque<std::unique_ptr<FidoHidPacket>>& getPacketsForTesting() const { return m_packets; }
70 FidoHidMessage(uint32_t channelId, FidoHidDeviceCommand, const Vector<uint8_t>& data);
71 FidoHidMessage(std::unique_ptr<FidoHidInitPacket>, size_t remainingSize);
73 uint32_t m_channelId = kHidBroadcastChannel;
74 FidoHidDeviceCommand m_cmd = FidoHidDeviceCommand::kMsg;
75 Deque<std::unique_ptr<FidoHidPacket>> m_packets;
76 size_t m_remainingSize = 0;
81 #endif // ENABLE(WEB_AUTHN)