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