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4c6798a3d3
Enable PoW defenses [1] for hidden services that we create via
Tor Control using the `ADD_ONION` command [2].
The ability to do that has been added in tor-0.4.9.2-alpha [3]. Previous
versions return a syntax error to the `ADD_ONION` command with
`PoWDefensesEnabled=1`, so the approach here is to try with PoW and if
we get syntax error, then retry without PoW.
[1] https://tpo.pages.torproject.net/onion-services/ecosystem/technology/security/pow/
[2] https://spec.torproject.org/control-spec/commands.html#add_onion
[3] 02c1804446
87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
// Copyright (c) 2020-present The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <test/fuzz/util.h>
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#include <test/util/setup_common.h>
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#include <torcontrol.h>
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#include <cstdint>
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#include <string>
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#include <vector>
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class DummyTorControlConnection : public TorControlConnection
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{
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public:
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DummyTorControlConnection() : TorControlConnection{nullptr}
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{
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}
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bool Connect(const std::string&, const ConnectionCB&, const ConnectionCB&)
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{
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return true;
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}
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void Disconnect()
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{
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}
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bool Command(const std::string&, const ReplyHandlerCB&)
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{
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return true;
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}
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};
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void initialize_torcontrol()
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{
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static const auto testing_setup = MakeNoLogFileContext<>();
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}
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FUZZ_TARGET(torcontrol, .init = initialize_torcontrol)
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{
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FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
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TorController tor_controller;
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LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {
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TorControlReply tor_control_reply;
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CallOneOf(
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fuzzed_data_provider,
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[&] {
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tor_control_reply.code = TOR_REPLY_OK;
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},
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[&] {
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tor_control_reply.code = TOR_REPLY_UNRECOGNIZED;
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},
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[&] {
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tor_control_reply.code = TOR_REPLY_SYNTAX_ERROR;
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},
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[&] {
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tor_control_reply.code = fuzzed_data_provider.ConsumeIntegral<int>();
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});
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tor_control_reply.lines = ConsumeRandomLengthStringVector(fuzzed_data_provider);
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if (tor_control_reply.lines.empty()) {
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break;
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}
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DummyTorControlConnection dummy_tor_control_connection;
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CallOneOf(
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fuzzed_data_provider,
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[&] {
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tor_controller.add_onion_cb(dummy_tor_control_connection, tor_control_reply, /*pow_was_enabled=*/true);
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},
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[&] {
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tor_controller.add_onion_cb(dummy_tor_control_connection, tor_control_reply, /*pow_was_enabled=*/false);
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},
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[&] {
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tor_controller.auth_cb(dummy_tor_control_connection, tor_control_reply);
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},
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[&] {
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tor_controller.authchallenge_cb(dummy_tor_control_connection, tor_control_reply);
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},
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[&] {
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tor_controller.protocolinfo_cb(dummy_tor_control_connection, tor_control_reply);
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});
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}
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}
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