URLRequest fuzzer.

net/socket/fuzzed_socket_factory.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_SOCKET_FUZZED_SOCKET_FACTORY_H
+#define NET_SOCKET_FUZZED_SOCKET_FACTORY_H
+
+#include <memory>
+
+#include "base/macros.h"
+#include "net/socket/client_socket_factory.h"
+
+namespace net {
+
+class FuzzedDataProvider;
+
+// A socket factory that creates FuzzedSockets that share the same
+// FuzzedDataProvider. To behave consistently, the read operations on all
+// sockets must be the same, and in the same order (both on each socket, and
+// between sockets).
+//
+// Currently doesn't support UDP or SSL sockets - just returns sockets that
+// synchronously fail to connect when trying to create either type of socket.
+// TODO(mmenke): Add support for both types of socket.
+// TODO(mmenke): add fuzzing for generation of valid cryptographically signed
+// messages.
+class FuzzedSocketFactory : public ClientSocketFactory {
+ public:
+  // |data_provider| must outlive the FuzzedSocketFactory, and all sockets it
+  // creates. Other objects can also continue to consume |data_provider|, as
+  // long as their calls into it are made on the CLientSocketFactory's thread
+  // and the calls are deterministic.
+  explicit FuzzedSocketFactory(FuzzedDataProvider* data_provider);
+  ~FuzzedSocketFactory() override;
+
+  std::unique_ptr<DatagramClientSocket> CreateDatagramClientSocket(
+      DatagramSocket::BindType bind_type,
+      const RandIntCallback& rand_int_cb,
+      NetLog* net_log,
+      const NetLog::Source& source) override;
+
+  std::unique_ptr<StreamSocket> CreateTransportClientSocket(
+      const AddressList& addresses,
+      std::unique_ptr<SocketPerformanceWatcher> socket_performance_watcher,
+      NetLog* net_log,
+      const NetLog::Source& source) override;
+
+  std::unique_ptr<SSLClientSocket> CreateSSLClientSocket(
+      std::unique_ptr<ClientSocketHandle> transport_socket,
+      const HostPortPair& host_and_port,
+      const SSLConfig& ssl_config,
+      const SSLClientSocketContext& context) override;
+
+  void ClearSSLSessionCache() override;
+
+ private:
+  FuzzedDataProvider* data_provider_;
+
+  DISALLOW_COPY_AND_ASSIGN(FuzzedSocketFactory);
+};
+
+}  // namespace net
+
+#endif  // NET_SOCKET_FUZZED_SOCKET_FACTORY_H