blob: f67a338b09c4bf13293fdc6a31dad0bebe7876b9 [file] [log] [blame]
// Copyright (c) 2019 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.
#include <iostream>
#include <memory>
#include <string>
#include <utility>
#include "absl/strings/str_cat.h"
#include "quic/core/quic_types.h"
#include "quic/core/quic_versions.h"
#include "quic/platform/api/quic_epoll.h"
#include "quic/platform/api/quic_system_event_loop.h"
#include "net/quic/platform/impl/quic_epoll_clock.h"
#include "quic/test_tools/quic_connection_peer.h"
#include "quic/test_tools/quic_session_peer.h"
#include "quic/test_tools/simple_session_cache.h"
#include "quic/tools/fake_proof_verifier.h"
#include "quic/tools/quic_client.h"
#include "quic/tools/quic_url.h"
DEFINE_QUIC_COMMAND_LINE_FLAG(std::string,
host,
"",
"The IP or hostname to connect to.");
DEFINE_QUIC_COMMAND_LINE_FLAG(int32_t, port, 0, "The port to connect to.");
namespace quic {
enum class Feature {
// First row of features ("table stakes")
// A version negotiation response is elicited and acted on.
kVersionNegotiation,
// The handshake completes successfully.
kHandshake,
// Stream data is being exchanged and ACK'ed.
kStreamData,
// The connection close procedcure completes with a zero error code.
kConnectionClose,
// The connection was established using TLS resumption.
kResumption,
// 0-RTT data is being sent and acted on.
kZeroRtt,
// A RETRY packet was successfully processed.
kRetry,
// A handshake using a ClientHello that spans multiple packets completed
// successfully.
kQuantum,
// Second row of features (anything else protocol-related)
// We switched to a different port and the server migrated to it.
kRebinding,
// One endpoint can update keys and its peer responds correctly.
kKeyUpdate,
// Third row of features (H3 tests)
// An H3 transaction succeeded.
kHttp3,
// One or both endpoints insert entries into dynamic table and subsequenly
// reference them from header blocks.
kDynamicEntryReferenced,
};
char MatrixLetter(Feature f) {
switch (f) {
case Feature::kVersionNegotiation:
return 'V';
case Feature::kHandshake:
return 'H';
case Feature::kStreamData:
return 'D';
case Feature::kConnectionClose:
return 'C';
case Feature::kResumption:
return 'R';
case Feature::kZeroRtt:
return 'Z';
case Feature::kRetry:
return 'S';
case Feature::kQuantum:
return 'Q';
case Feature::kRebinding:
return 'B';
case Feature::kKeyUpdate:
return 'U';
case Feature::kHttp3:
return '3';
case Feature::kDynamicEntryReferenced:
return 'd';
}
}
class QuicClientInteropRunner : QuicConnectionDebugVisitor {
public:
QuicClientInteropRunner() {}
void InsertFeature(Feature feature) { features_.insert(feature); }
std::set<Feature> features() const { return features_; }
// Attempts a resumption using |client| by disconnecting and reconnecting. If
// resumption is successful, |features_| is modified to add
// Feature::kResumption to it, otherwise it is left unmodified.
void AttemptResumption(QuicClient* client, const std::string& authority);
void AttemptRequest(QuicSocketAddress addr,
std::string authority,
QuicServerId server_id,
ParsedQuicVersion version,
bool test_version_negotiation,
bool attempt_rebind,
bool attempt_multi_packet_chlo,
bool attempt_key_update);
// Constructs a SpdyHeaderBlock containing the pseudo-headers needed to make a
// GET request to "/" on the hostname |authority|.
spdy::Http2HeaderBlock ConstructHeaderBlock(const std::string& authority);
// Sends an HTTP request represented by |header_block| using |client|.
void SendRequest(QuicClient* client,
const spdy::Http2HeaderBlock& header_block);
void OnConnectionCloseFrame(const QuicConnectionCloseFrame& frame) override {
switch (frame.close_type) {
case GOOGLE_QUIC_CONNECTION_CLOSE:
QUIC_LOG(ERROR) << "Received unexpected GoogleQUIC connection close";
break;
case IETF_QUIC_TRANSPORT_CONNECTION_CLOSE:
if (frame.wire_error_code == NO_IETF_QUIC_ERROR) {
InsertFeature(Feature::kConnectionClose);
} else {
QUIC_LOG(ERROR) << "Received transport connection close "
<< QuicIetfTransportErrorCodeString(
static_cast<QuicIetfTransportErrorCodes>(
frame.wire_error_code));
}
break;
case IETF_QUIC_APPLICATION_CONNECTION_CLOSE:
if (frame.wire_error_code == 0) {
InsertFeature(Feature::kConnectionClose);
} else {
QUIC_LOG(ERROR) << "Received application connection close "
<< frame.wire_error_code;
}
break;
}
}
void OnVersionNegotiationPacket(
const QuicVersionNegotiationPacket& /*packet*/) override {
InsertFeature(Feature::kVersionNegotiation);
}
private:
std::set<Feature> features_;
};
void QuicClientInteropRunner::AttemptResumption(QuicClient* client,
const std::string& authority) {
client->Disconnect();
if (!client->Initialize()) {
QUIC_LOG(ERROR) << "Failed to reinitialize client";
return;
}
if (!client->Connect()) {
return;
}
bool zero_rtt_attempt = !client->session()->OneRttKeysAvailable();
spdy::Http2HeaderBlock header_block = ConstructHeaderBlock(authority);
SendRequest(client, header_block);
if (!client->session()->OneRttKeysAvailable()) {
return;
}
if (static_cast<QuicCryptoClientStream*>(
test::QuicSessionPeer::GetMutableCryptoStream(client->session()))
->IsResumption()) {
InsertFeature(Feature::kResumption);
}
if (static_cast<QuicCryptoClientStream*>(
test::QuicSessionPeer::GetMutableCryptoStream(client->session()))
->EarlyDataAccepted() &&
zero_rtt_attempt && client->latest_response_code() != -1) {
InsertFeature(Feature::kZeroRtt);
}
}
void QuicClientInteropRunner::AttemptRequest(QuicSocketAddress addr,
std::string authority,
QuicServerId server_id,
ParsedQuicVersion version,
bool test_version_negotiation,
bool attempt_rebind,
bool attempt_multi_packet_chlo,
bool attempt_key_update) {
ParsedQuicVersionVector versions = {version};
if (test_version_negotiation) {
versions.insert(versions.begin(), QuicVersionReservedForNegotiation());
}
auto proof_verifier = std::make_unique<FakeProofVerifier>();
auto session_cache = std::make_unique<test::SimpleSessionCache>();
QuicEpollServer epoll_server;
QuicEpollClock epoll_clock(&epoll_server);
QuicConfig config;
QuicTime::Delta timeout = QuicTime::Delta::FromSeconds(20);
config.SetIdleNetworkTimeout(timeout);
if (attempt_multi_packet_chlo) {
// Make the ClientHello span multiple packets by adding a custom transport
// parameter.
constexpr auto kCustomParameter =
static_cast<TransportParameters::TransportParameterId>(0x173E);
std::string custom_value(2000, '?');
config.custom_transport_parameters_to_send()[kCustomParameter] =
custom_value;
}
auto client = std::make_unique<QuicClient>(
addr, server_id, versions, config, &epoll_server,
std::move(proof_verifier), std::move(session_cache));
client->set_connection_debug_visitor(this);
if (!client->Initialize()) {
QUIC_LOG(ERROR) << "Failed to initialize client";
return;
}
const bool connect_result = client->Connect();
QuicConnection* connection = client->session()->connection();
if (connection == nullptr) {
QUIC_LOG(ERROR) << "No QuicConnection object";
return;
}
QuicConnectionStats client_stats = connection->GetStats();
if (client_stats.retry_packet_processed) {
InsertFeature(Feature::kRetry);
}
if (test_version_negotiation && connection->version() == version) {
InsertFeature(Feature::kVersionNegotiation);
}
if (test_version_negotiation && !connect_result) {
// Failed to negotiate version, retry without version negotiation.
AttemptRequest(addr, authority, server_id, version,
/*test_version_negotiation=*/false, attempt_rebind,
attempt_multi_packet_chlo, attempt_key_update);
return;
}
if (!client->session()->OneRttKeysAvailable()) {
if (attempt_multi_packet_chlo) {
// Failed to handshake with multi-packet client hello, retry without it.
AttemptRequest(addr, authority, server_id, version,
test_version_negotiation, attempt_rebind,
/*attempt_multi_packet_chlo=*/false, attempt_key_update);
return;
}
return;
}
InsertFeature(Feature::kHandshake);
if (attempt_multi_packet_chlo) {
InsertFeature(Feature::kQuantum);
}
spdy::Http2HeaderBlock header_block = ConstructHeaderBlock(authority);
SendRequest(client.get(), header_block);
if (!client->connected()) {
return;
}
if (client->latest_response_code() != -1) {
InsertFeature(Feature::kHttp3);
if (client->client_session()->dynamic_table_entry_referenced()) {
InsertFeature(Feature::kDynamicEntryReferenced);
}
if (attempt_rebind) {
// Now make a second request after switching to a different client port.
if (client->ChangeEphemeralPort()) {
client->SendRequestAndWaitForResponse(header_block, "", /*fin=*/true);
if (!client->connected()) {
// Rebinding does not work, retry without attempting it.
AttemptRequest(addr, authority, server_id, version,
test_version_negotiation, /*attempt_rebind=*/false,
attempt_multi_packet_chlo, attempt_key_update);
return;
}
InsertFeature(Feature::kRebinding);
if (client->client_session()->dynamic_table_entry_referenced()) {
InsertFeature(Feature::kDynamicEntryReferenced);
}
} else {
QUIC_LOG(ERROR) << "Failed to change ephemeral port";
}
}
if (attempt_key_update) {
if (connection->IsKeyUpdateAllowed()) {
if (connection->InitiateKeyUpdate(
KeyUpdateReason::kLocalForInteropRunner)) {
client->SendRequestAndWaitForResponse(header_block, "", /*fin=*/true);
if (!client->connected()) {
// Key update does not work, retry without attempting it.
AttemptRequest(addr, authority, server_id, version,
test_version_negotiation, attempt_rebind,
attempt_multi_packet_chlo,
/*attempt_key_update=*/false);
return;
}
InsertFeature(Feature::kKeyUpdate);
} else {
QUIC_LOG(ERROR) << "Failed to initiate key update";
}
} else {
QUIC_LOG(ERROR) << "Key update not allowed";
}
}
}
if (connection->connected()) {
connection->CloseConnection(
QUIC_NO_ERROR, "Graceful close",
ConnectionCloseBehavior::SEND_CONNECTION_CLOSE_PACKET);
InsertFeature(Feature::kConnectionClose);
}
AttemptResumption(client.get(), authority);
}
spdy::Http2HeaderBlock QuicClientInteropRunner::ConstructHeaderBlock(
const std::string& authority) {
// Construct and send a request.
spdy::Http2HeaderBlock header_block;
header_block[":method"] = "GET";
header_block[":scheme"] = "https";
header_block[":authority"] = authority;
header_block[":path"] = "/";
return header_block;
}
void QuicClientInteropRunner::SendRequest(
QuicClient* client,
const spdy::Http2HeaderBlock& header_block) {
client->set_store_response(true);
client->SendRequestAndWaitForResponse(header_block, "", /*fin=*/true);
QuicConnection* connection = client->session()->connection();
if (connection == nullptr) {
QUIC_LOG(ERROR) << "No QuicConnection object";
return;
}
QuicConnectionStats client_stats = connection->GetStats();
QuicSentPacketManager* sent_packet_manager =
test::QuicConnectionPeer::GetSentPacketManager(connection);
const bool received_forward_secure_ack =
sent_packet_manager != nullptr &&
sent_packet_manager->GetLargestAckedPacket(ENCRYPTION_FORWARD_SECURE)
.IsInitialized();
if (client_stats.stream_bytes_received > 0 && received_forward_secure_ack) {
InsertFeature(Feature::kStreamData);
}
}
std::set<Feature> ServerSupport(std::string dns_host,
std::string url_host,
int port) {
// Enable IETF version support.
QuicVersionInitializeSupportForIetfDraft();
ParsedQuicVersion version = UnsupportedQuicVersion();
for (const ParsedQuicVersion& vers : AllSupportedVersions()) {
// Find the first version that supports IETF QUIC.
if (vers.HasIetfQuicFrames() &&
vers.handshake_protocol == quic::PROTOCOL_TLS1_3) {
version = vers;
break;
}
}
QUICHE_CHECK(version.IsKnown());
QuicEnableVersion(version);
std::cout << "Attempting interop with version " << version << std::endl;
// Build the client, and try to connect.
QuicSocketAddress addr = tools::LookupAddress(dns_host, absl::StrCat(port));
if (!addr.IsInitialized()) {
QUIC_LOG(ERROR) << "Failed to resolve " << dns_host;
return std::set<Feature>();
}
QuicServerId server_id(url_host, port, false);
std::string authority = absl::StrCat(url_host, ":", port);
QuicClientInteropRunner runner;
runner.AttemptRequest(addr, authority, server_id, version,
/*test_version_negotiation=*/true,
/*attempt_rebind=*/true,
/*attempt_multi_packet_chlo=*/true,
/*attempt_key_update=*/true);
return runner.features();
}
} // namespace quic
int main(int argc, char* argv[]) {
QuicSystemEventLoop event_loop("quic_client");
const char* usage = "Usage: quic_client_interop_test [options] [url]";
std::vector<std::string> args =
quic::QuicParseCommandLineFlags(usage, argc, argv);
if (args.size() > 1) {
quic::QuicPrintCommandLineFlagHelp(usage);
exit(1);
}
std::string dns_host = GetQuicFlag(FLAGS_host);
std::string url_host = "";
int port = GetQuicFlag(FLAGS_port);
if (!args.empty()) {
quic::QuicUrl url(args[0], "https");
url_host = url.host();
if (dns_host.empty()) {
dns_host = url_host;
}
if (port == 0) {
port = url.port();
}
}
if (port == 0) {
port = 443;
}
if (dns_host.empty()) {
quic::QuicPrintCommandLineFlagHelp(usage);
exit(1);
}
if (url_host.empty()) {
url_host = dns_host;
}
auto supported_features = quic::ServerSupport(dns_host, url_host, port);
std::cout << "Results for " << url_host << ":" << port << std::endl;
int current_row = 1;
for (auto feature : supported_features) {
if (current_row < 2 && feature >= quic::Feature::kRebinding) {
std::cout << std::endl;
current_row = 2;
}
if (current_row < 3 && feature >= quic::Feature::kHttp3) {
std::cout << std::endl;
current_row = 3;
}
std::cout << MatrixLetter(feature);
}
std::cout << std::endl;
}