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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/spdy/fuzzing/hpack_fuzz_util.h" | 5 #include "net/spdy/fuzzing/hpack_fuzz_util.h" |
6 | 6 |
7 #include <map> | 7 #include <map> |
8 | 8 |
9 #include "base/base_paths.h" | 9 #include "base/base_paths.h" |
10 #include "base/file_util.h" | 10 #include "base/file_util.h" |
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45 // TODO(jgraettinger): Upstream uses a seeded random generator here to pin | 45 // TODO(jgraettinger): Upstream uses a seeded random generator here to pin |
46 // the behavior of SampleExponential. Chromium's random generation utilities | 46 // the behavior of SampleExponential. Chromium's random generation utilities |
47 // are strongly secure, but provide no way to seed the generator. | 47 // are strongly secure, but provide no way to seed the generator. |
48 for (size_t i = 0; i != 100; ++i) { | 48 for (size_t i = 0; i != 100; ++i) { |
49 EXPECT_GE(30u, HpackFuzzUtil::SampleExponential(10, 30)); | 49 EXPECT_GE(30u, HpackFuzzUtil::SampleExponential(10, 30)); |
50 } | 50 } |
51 } | 51 } |
52 | 52 |
53 TEST(HpackFuzzUtilTest, ParsesSequenceOfHeaderBlocks) { | 53 TEST(HpackFuzzUtilTest, ParsesSequenceOfHeaderBlocks) { |
54 char fixture[] = | 54 char fixture[] = |
55 "\x00\x00\x00\x05""aaaaa" | 55 "\x00\x00\x00\x05" |
56 "\x00\x00\x00\x04""bbbb" | 56 "aaaaa" |
57 "\x00\x00\x00\x03""ccc" | 57 "\x00\x00\x00\x04" |
58 "\x00\x00\x00\x02""dd" | 58 "bbbb" |
59 "\x00\x00\x00\x01""e" | 59 "\x00\x00\x00\x03" |
60 "\x00\x00\x00\x00""" | 60 "ccc" |
61 "\x00\x00\x00\x03""fin"; | 61 "\x00\x00\x00\x02" |
| 62 "dd" |
| 63 "\x00\x00\x00\x01" |
| 64 "e" |
| 65 "\x00\x00\x00\x00" |
| 66 "" |
| 67 "\x00\x00\x00\x03" |
| 68 "fin"; |
62 | 69 |
63 HpackFuzzUtil::Input input; | 70 HpackFuzzUtil::Input input; |
64 input.input.assign(fixture, arraysize(fixture) - 1); | 71 input.input.assign(fixture, arraysize(fixture) - 1); |
65 | 72 |
66 StringPiece block; | 73 StringPiece block; |
67 | 74 |
68 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block)); | 75 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block)); |
69 EXPECT_EQ("aaaaa", block); | 76 EXPECT_EQ("aaaaa", block); |
70 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block)); | 77 EXPECT_TRUE(HpackFuzzUtil::NextHeaderBlock(&input, &block)); |
71 EXPECT_EQ("bbbb", block); | 78 EXPECT_EQ("bbbb", block); |
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91 | 98 |
92 TEST(HpackFuzzUtilTest, PassValidInputThroughAllStages) { | 99 TEST(HpackFuzzUtilTest, PassValidInputThroughAllStages) { |
93 // Example lifted from HpackDecoderTest.SectionD3RequestHuffmanExamples. | 100 // Example lifted from HpackDecoderTest.SectionD3RequestHuffmanExamples. |
94 char input[] = | 101 char input[] = |
95 "\x82\x87\x86\x04\x8b\xdb\x6d\x88\x3e\x68\xd1\xcb\x12\x25\xba\x7f"; | 102 "\x82\x87\x86\x04\x8b\xdb\x6d\x88\x3e\x68\xd1\xcb\x12\x25\xba\x7f"; |
96 | 103 |
97 HpackFuzzUtil::FuzzerContext context; | 104 HpackFuzzUtil::FuzzerContext context; |
98 HpackFuzzUtil::InitializeFuzzerContext(&context); | 105 HpackFuzzUtil::InitializeFuzzerContext(&context); |
99 | 106 |
100 EXPECT_TRUE(HpackFuzzUtil::RunHeaderBlockThroughFuzzerStages( | 107 EXPECT_TRUE(HpackFuzzUtil::RunHeaderBlockThroughFuzzerStages( |
101 &context, | 108 &context, StringPiece(input, arraysize(input) - 1))); |
102 StringPiece(input, arraysize(input) - 1))); | |
103 | 109 |
104 std::map<string, string> expect; | 110 std::map<string, string> expect; |
105 expect[":method"] = "GET"; | 111 expect[":method"] = "GET"; |
106 expect[":scheme"] = "http"; | 112 expect[":scheme"] = "http"; |
107 expect[":path"] = "/"; | 113 expect[":path"] = "/"; |
108 expect[":authority"] = "www.example.com"; | 114 expect[":authority"] = "www.example.com"; |
109 EXPECT_EQ(expect, context.third_stage->decoded_block()); | 115 EXPECT_EQ(expect, context.third_stage->decoded_block()); |
110 } | 116 } |
111 | 117 |
112 TEST(HpackFuzzUtilTest, ValidFuzzExamplesRegressionTest) { | 118 TEST(HpackFuzzUtilTest, ValidFuzzExamplesRegressionTest) { |
113 base::FilePath source_root; | 119 base::FilePath source_root; |
114 ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &source_root)); | 120 ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &source_root)); |
115 | 121 |
116 // Load the example fixtures versioned with the source tree. | 122 // Load the example fixtures versioned with the source tree. |
117 HpackFuzzUtil::Input input; | 123 HpackFuzzUtil::Input input; |
118 ASSERT_TRUE(base::ReadFileToString( | 124 ASSERT_TRUE( |
119 source_root.Append(FILE_PATH_LITERAL("net")) | 125 base::ReadFileToString(source_root.Append(FILE_PATH_LITERAL("net")) |
120 .Append(FILE_PATH_LITERAL("data")) | 126 .Append(FILE_PATH_LITERAL("data")) |
121 .Append(FILE_PATH_LITERAL("spdy_tests")) | 127 .Append(FILE_PATH_LITERAL("spdy_tests")) |
122 .Append(FILE_PATH_LITERAL("examples.hpack")), | 128 .Append(FILE_PATH_LITERAL("examples.hpack")), |
123 &input.input)); | 129 &input.input)); |
124 | 130 |
125 HpackFuzzUtil::FuzzerContext context; | 131 HpackFuzzUtil::FuzzerContext context; |
126 HpackFuzzUtil::InitializeFuzzerContext(&context); | 132 HpackFuzzUtil::InitializeFuzzerContext(&context); |
127 | 133 |
128 StringPiece block; | 134 StringPiece block; |
129 while (HpackFuzzUtil::NextHeaderBlock(&input, &block)) { | 135 while (HpackFuzzUtil::NextHeaderBlock(&input, &block)) { |
130 // As these are valid examples, all fuzz stages should succeed. | 136 // As these are valid examples, all fuzz stages should succeed. |
131 EXPECT_TRUE(HpackFuzzUtil::RunHeaderBlockThroughFuzzerStages( | 137 EXPECT_TRUE( |
132 &context, block)); | 138 HpackFuzzUtil::RunHeaderBlockThroughFuzzerStages(&context, block)); |
133 } | 139 } |
134 } | 140 } |
135 | 141 |
136 TEST(HpackFuzzUtilTest, FlipBitsMutatesBuffer) { | 142 TEST(HpackFuzzUtilTest, FlipBitsMutatesBuffer) { |
137 char buffer[] = "testbuffer1234567890"; | 143 char buffer[] = "testbuffer1234567890"; |
138 string unmodified(buffer, arraysize(buffer) - 1); | 144 string unmodified(buffer, arraysize(buffer) - 1); |
139 | 145 |
140 EXPECT_EQ(unmodified, buffer); | 146 EXPECT_EQ(unmodified, buffer); |
141 HpackFuzzUtil::FlipBits(reinterpret_cast<uint8*>(buffer), | 147 HpackFuzzUtil::FlipBits( |
142 arraysize(buffer) - 1, | 148 reinterpret_cast<uint8*>(buffer), arraysize(buffer) - 1, 1); |
143 1); | |
144 EXPECT_NE(unmodified, buffer); | 149 EXPECT_NE(unmodified, buffer); |
145 } | 150 } |
146 | 151 |
147 } // namespace net | 152 } // namespace net |
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