1 // Copyright 2017 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "net/quic/quic_stream_factory.h"
6
7 #include <fuzzer/FuzzedDataProvider.h>
8
9 #include "base/stl_util.h"
10 #include "net/base/network_isolation_key.h"
11 #include "net/base/test_completion_callback.h"
12 #include "net/cert/ct_policy_enforcer.h"
13 #include "net/cert/do_nothing_ct_verifier.h"
14 #include "net/cert/mock_cert_verifier.h"
15 #include "net/cert/x509_certificate.h"
16 #include "net/dns/context_host_resolver.h"
17 #include "net/dns/fuzzed_host_resolver_util.h"
18 #include "net/http/http_server_properties.h"
19 #include "net/http/transport_security_state.h"
20 #include "net/quic/mock_crypto_client_stream_factory.h"
21 #include "net/quic/mock_quic_context.h"
22 #include "net/quic/quic_http_stream.h"
23 #include "net/quic/test_task_runner.h"
24 #include "net/socket/fuzzed_datagram_client_socket.h"
25 #include "net/socket/fuzzed_socket_factory.h"
26 #include "net/socket/socket_tag.h"
27 #include "net/ssl/ssl_config_service_defaults.h"
28 #include "net/test/gtest_util.h"
29 #include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
30
31 namespace net {
32
33 namespace {
34
35 const char kCertData[] = {
36 #include "net/data/ssl/certificates/wildcard.inc"
37 };
38
39 } // namespace
40
41 namespace test {
42
43 const char kServerHostName[] = "www.example.org";
44 const int kServerPort = 443;
45 const char kUrl[] = "https://www.example.org/";
46 // TODO(nedwilliamson): Add POST here after testing
47 // whether that can lead blocking while waiting for
48 // the callbacks.
49 const char kMethod[] = "GET";
50 const size_t kBufferSize = 4096;
51 const int kCertVerifyFlags = 0;
52
53 // Static initialization for persistent factory data
54 struct Env {
Envnet::test::Env55 Env() : host_port_pair(kServerHostName, kServerPort) {
56 quic_context.AdvanceTime(quic::QuicTime::Delta::FromSeconds(1));
57 ssl_config_service = std::make_unique<SSLConfigServiceDefaults>();
58 crypto_client_stream_factory.set_use_mock_crypter(true);
59 cert_verifier = std::make_unique<MockCertVerifier>();
60 cert_transparency_verifier = std::make_unique<DoNothingCTVerifier>();
61 verify_details.cert_verify_result.verified_cert =
62 X509Certificate::CreateFromBytes(kCertData, base::size(kCertData));
63 CHECK(verify_details.cert_verify_result.verified_cert);
64 verify_details.cert_verify_result.is_issued_by_known_root = true;
65 }
66
67 std::unique_ptr<SSLConfigService> ssl_config_service;
68 ProofVerifyDetailsChromium verify_details;
69 MockCryptoClientStreamFactory crypto_client_stream_factory;
70 HostPortPair host_port_pair;
71 NetLogWithSource net_log;
72 std::unique_ptr<CertVerifier> cert_verifier;
73 TransportSecurityState transport_security_state;
74 quic::QuicTagVector connection_options;
75 quic::QuicTagVector client_connection_options;
76 std::unique_ptr<CTVerifier> cert_transparency_verifier;
77 DefaultCTPolicyEnforcer ct_policy_enforcer;
78 MockQuicContext quic_context;
79 };
80
81 static struct Env* env = new Env();
82
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)83 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
84 FuzzedDataProvider data_provider(data, size);
85
86 std::unique_ptr<ContextHostResolver> host_resolver =
87 CreateFuzzedContextHostResolver(HostResolver::ManagerOptions(), nullptr,
88 &data_provider,
89 true /* enable_caching */);
90 FuzzedSocketFactory socket_factory(&data_provider);
91
92 // Initialize this on each loop since some options mutate this.
93 HttpServerProperties http_server_properties;
94
95 QuicParams& params = *env->quic_context.params();
96 params.max_server_configs_stored_in_properties =
97 data_provider.ConsumeBool() ? 1 : 0;
98 params.close_sessions_on_ip_change = data_provider.ConsumeBool();
99 params.allow_server_migration = data_provider.ConsumeBool();
100 params.estimate_initial_rtt = data_provider.ConsumeBool();
101 params.headers_include_h2_stream_dependency = data_provider.ConsumeBool();
102 params.enable_socket_recv_optimization = data_provider.ConsumeBool();
103 params.race_stale_dns_on_connection = data_provider.ConsumeBool();
104
105 env->crypto_client_stream_factory.AddProofVerifyDetails(&env->verify_details);
106
107 params.goaway_sessions_on_ip_change = false;
108 params.migrate_sessions_early_v2 = false;
109 params.migrate_sessions_on_network_change_v2 = false;
110 params.retry_on_alternate_network_before_handshake = false;
111 params.migrate_idle_sessions = false;
112 params.go_away_on_path_degrading = false;
113
114 if (!params.close_sessions_on_ip_change) {
115 params.goaway_sessions_on_ip_change = data_provider.ConsumeBool();
116 if (!params.goaway_sessions_on_ip_change) {
117 params.migrate_sessions_on_network_change_v2 =
118 data_provider.ConsumeBool();
119 if (params.migrate_sessions_on_network_change_v2) {
120 params.migrate_sessions_early_v2 = data_provider.ConsumeBool();
121 params.retry_on_alternate_network_before_handshake =
122 data_provider.ConsumeBool();
123 params.migrate_idle_sessions = data_provider.ConsumeBool();
124 }
125 }
126 }
127
128 if (!params.migrate_sessions_early_v2) {
129 params.go_away_on_path_degrading = data_provider.ConsumeBool();
130 }
131
132 std::unique_ptr<QuicStreamFactory> factory =
133 std::make_unique<QuicStreamFactory>(
134 env->net_log.net_log(), host_resolver.get(),
135 env->ssl_config_service.get(), &socket_factory,
136 &http_server_properties, env->cert_verifier.get(),
137 &env->ct_policy_enforcer, &env->transport_security_state,
138 env->cert_transparency_verifier.get(), nullptr, nullptr,
139 &env->crypto_client_stream_factory, &env->quic_context);
140
141 QuicStreamRequest request(factory.get());
142 TestCompletionCallback callback;
143 NetErrorDetails net_error_details;
144 quic::ParsedQuicVersionVector versions = quic::AllSupportedVersions();
145 quic::ParsedQuicVersion version =
146 versions[data_provider.ConsumeIntegralInRange<size_t>(
147 0, versions.size() - 1)];
148
149 quic::QuicEnableVersion(version);
150
151 request.Request(
152 env->host_port_pair, version, PRIVACY_MODE_DISABLED, DEFAULT_PRIORITY,
153 SocketTag(), NetworkIsolationKey(), false /* disable_secure_dns */,
154 kCertVerifyFlags, GURL(kUrl), env->net_log, &net_error_details,
155 /*failed_on_default_network_callback=*/CompletionOnceCallback(),
156 callback.callback());
157
158 callback.WaitForResult();
159 std::unique_ptr<QuicChromiumClientSession::Handle> session =
160 request.ReleaseSessionHandle();
161 if (!session)
162 return 0;
163 std::unique_ptr<HttpStream> stream(new QuicHttpStream(std::move(session)));
164
165 HttpRequestInfo request_info;
166 request_info.method = kMethod;
167 request_info.url = GURL(kUrl);
168 request_info.traffic_annotation =
169 MutableNetworkTrafficAnnotationTag(TRAFFIC_ANNOTATION_FOR_TESTS);
170 stream->InitializeStream(&request_info, true, DEFAULT_PRIORITY, env->net_log,
171 CompletionOnceCallback());
172
173 HttpResponseInfo response;
174 HttpRequestHeaders request_headers;
175 if (OK !=
176 stream->SendRequest(request_headers, &response, callback.callback()))
177 return 0;
178
179 // TODO(nedwilliamson): attempt connection migration here
180 int rv = stream->ReadResponseHeaders(callback.callback());
181 if (rv != OK && rv != ERR_IO_PENDING) {
182 return 0;
183 }
184 callback.WaitForResult();
185
186 scoped_refptr<net::IOBuffer> buffer =
187 base::MakeRefCounted<net::IOBuffer>(kBufferSize);
188 rv = stream->ReadResponseBody(buffer.get(), kBufferSize, callback.callback());
189 if (rv == ERR_IO_PENDING)
190 callback.WaitForResult();
191
192 return 0;
193 }
194
195 } // namespace test
196 } // namespace net
197