82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
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/*
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* Copyright (C) 2015 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef UDP_H_
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#define UDP_H_
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#include <memory>
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#include <string>
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#include "socket.h"
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#include "transport.h"
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namespace udp {
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constexpr int kDefaultPort = 5554;
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// Returns a newly allocated Transport object connected to |hostname|:|port|. On failure, |error| is
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// filled and nullptr is returned.
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std::unique_ptr<Transport> Connect(const std::string& hostname, int port, std::string* error);
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// Internal namespace for test use only.
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namespace internal {
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constexpr uint16_t kProtocolVersion = 1;
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// This will be negotiated with the device so may end up being smaller.
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constexpr uint16_t kHostMaxPacketSize = 8192;
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// Retransmission constants. Retransmission timeout must be at least 500ms, and the host must
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// attempt to send packets for at least 1 minute once the device has connected. See
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// fastboot_protocol.txt for more information.
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constexpr int kResponseTimeoutMs = 500;
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constexpr int kMaxConnectAttempts = 4;
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constexpr int kMaxTransmissionAttempts = 60 * 1000 / kResponseTimeoutMs;
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enum Id : uint8_t {
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kIdError = 0x00,
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kIdDeviceQuery = 0x01,
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kIdInitialization = 0x02,
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kIdFastboot = 0x03
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};
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enum Flag : uint8_t {
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kFlagNone = 0x00,
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kFlagContinuation = 0x01
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};
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// Creates a UDP Transport object using a given Socket. Used for unit tests to create a Transport
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// object that uses a SocketMock.
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std::unique_ptr<Transport> Connect(std::unique_ptr<Socket> sock, std::string* error);
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} // namespace internal
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} // namespace udp
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#endif // UDP_H_
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