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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/socket/fuzzed_socket_factory.h"
#include <fuzzer/FuzzedDataProvider.h>
#include <string_view>
#include "base/notreached.h"
#include "net/base/address_list.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/base/network_change_notifier.h"
#include "net/log/net_log_with_source.h"
#include "net/socket/connection_attempts.h"
#include "net/socket/fuzzed_datagram_client_socket.h"
#include "net/socket/fuzzed_socket.h"
#include "net/socket/ssl_client_socket.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
namespace net {
class NetLog;
namespace {
// SSLClientSocket implementation that always fails to connect.
class FailingSSLClientSocket : public SSLClientSocket {
public:
FailingSSLClientSocket() = default;
FailingSSLClientSocket(const FailingSSLClientSocket&) = delete;
FailingSSLClientSocket& operator=(const FailingSSLClientSocket&) = delete;
~FailingSSLClientSocket() override = default;
// Socket implementation:
int Read(IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback) override {
NOTREACHED();
}
int Write(IOBuffer* buf,
int buf_len,
CompletionOnceCallback callback,
const NetworkTrafficAnnotationTag& traffic_annotation) override {
NOTREACHED();
}
int SetReceiveBufferSize(int32_t size) override { return OK; }
int SetSendBufferSize(int32_t size) override { return OK; }
// StreamSocket implementation:
int Connect(CompletionOnceCallback callback) override { return ERR_FAILED; }
void Disconnect() override {}
bool IsConnected() const override { return false; }
bool IsConnectedAndIdle() const override { return false; }
int GetPeerAddress(IPEndPoint* address) const override {
return ERR_SOCKET_NOT_CONNECTED;
}
int GetLocalAddress(IPEndPoint* address) const override {
return ERR_SOCKET_NOT_CONNECTED;
}
const NetLogWithSource& NetLog() const override { return net_log_; }
bool WasEverUsed() const override { return false; }
NextProto GetNegotiatedProtocol() const override {
return NextProto::kProtoUnknown;
}
bool GetSSLInfo(SSLInfo* ssl_info) override { return false; }
int64_t GetTotalReceivedBytes() const override { return 0; }
void GetSSLCertRequestInfo(
SSLCertRequestInfo* cert_request_info) const override {}
void ApplySocketTag(const net::SocketTag& tag) override {}
// SSLSocket implementation:
int ExportKeyingMaterial(std::string_view label,
std::optional<base::span<const uint8_t>> context,
base::span<uint8_t> out) override {
NOTREACHED();
}
// SSLClientSocket implementation:
std::vector<uint8_t> GetECHRetryConfigs() override { NOTREACHED(); }
std::vector<std::vector<uint8_t>> GetServerTrustAnchorIDsForRetry() override {
NOTREACHED();
}
private:
NetLogWithSource net_log_;
};
} // namespace
FuzzedSocketFactory::FuzzedSocketFactory(FuzzedDataProvider* data_provider)
: data_provider_(data_provider) {}
FuzzedSocketFactory::~FuzzedSocketFactory() = default;
std::unique_ptr<DatagramClientSocket>
FuzzedSocketFactory::CreateDatagramClientSocket(
DatagramSocket::BindType bind_type,
NetLog* net_log,
const NetLogSource& source) {
return std::make_unique<FuzzedDatagramClientSocket>(data_provider_);
}
std::unique_ptr<TransportClientSocket>
FuzzedSocketFactory::CreateTransportClientSocket(
const AddressList& addresses,
std::unique_ptr<SocketPerformanceWatcher> socket_performance_watcher,
NetworkQualityEstimator* network_quality_estimator,
NetLog* net_log,
const NetLogSource& source) {
auto socket = std::make_unique<FuzzedSocket>(data_provider_, net_log);
socket->set_fuzz_connect_result(fuzz_connect_result_);
// Just use the first address.
socket->set_remote_address(*addresses.begin());
return std::move(socket);
}
std::unique_ptr<SSLClientSocket> FuzzedSocketFactory::CreateSSLClientSocket(
SSLClientContext* context,
std::unique_ptr<StreamSocket> stream_socket,
const HostPortPair& host_and_port,
const SSLConfig& ssl_config) {
return std::make_unique<FailingSSLClientSocket>();
}
} // namespace net
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