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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef NET_SOCKET_FUZZED_SERVER_SOCKET_H_
#define NET_SOCKET_FUZZED_SERVER_SOCKET_H_
#include <stdint.h>
#include <memory>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "net/base/completion_once_callback.h"
#include "net/base/ip_endpoint.h"
#include "net/socket/server_socket.h"
class FuzzedDataProvider;
namespace net {
class NetLog;
class StreamSocket;
// A ServerSocket that uses a FuzzedDataProvider to generate the input the
// server receives. It succeeds in Accept()ing, asynchronously, a single
// connection with that input; later calls to Accept will just return
// ERR_IO_PENDING but will not invoke the callback.
class FuzzedServerSocket : public ServerSocket {
public:
// |data_provider| is used as to determine behavior of the socket. It
// must remain valid until after both this object and the StreamSocket
// produced by Accept are destroyed.
FuzzedServerSocket(FuzzedDataProvider* data_provider, net::NetLog* net_log);
FuzzedServerSocket(const FuzzedServerSocket&) = delete;
FuzzedServerSocket& operator=(const FuzzedServerSocket&) = delete;
~FuzzedServerSocket() override;
int Listen(const IPEndPoint& address,
int backlog,
std::optional<bool> ipv6_only) override;
int GetLocalAddress(IPEndPoint* address) const override;
int Accept(std::unique_ptr<StreamSocket>* socket,
CompletionOnceCallback callback) override;
private:
void DispatchAccept(std::unique_ptr<StreamSocket>* socket,
CompletionOnceCallback callback);
raw_ptr<FuzzedDataProvider> data_provider_;
raw_ptr<net::NetLog> net_log_;
IPEndPoint listening_on_;
bool first_accept_ = true;
bool listen_called_ = false;
base::WeakPtrFactory<FuzzedServerSocket> weak_factory_{this};
};
} // namespace net
#endif // NET_SOCKET_FUZZED_SERVER_SOCKET_H_
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