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|
// Copyright 2017 the V8 project 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 "test/unittests/test-utils.h"
#include "src/objects/objects-inl.h"
#include "src/wasm/module-decoder.h"
#include "src/wasm/streaming-decoder.h"
#include "src/objects/descriptor-array.h"
#include "src/objects/dictionary.h"
#include "test/common/wasm/wasm-macro-gen.h"
namespace v8 {
namespace internal {
namespace wasm {
struct MockStreamingResult {
size_t num_sections = 0;
size_t num_functions = 0;
bool error;
base::OwnedVector<const uint8_t> received_bytes;
bool ok() const { return !error; }
MockStreamingResult() = default;
};
class NoTracer {
public:
void Bytes(const byte* start, uint32_t count) {}
void Description(const char* desc) {}
};
class MockStreamingProcessor : public StreamingProcessor {
public:
explicit MockStreamingProcessor(MockStreamingResult* result)
: result_(result) {}
bool ProcessModuleHeader(base::Vector<const uint8_t> bytes,
uint32_t offset) override {
Decoder decoder(bytes.begin(), bytes.end());
uint32_t magic_word = decoder.consume_u32("wasm magic", ITracer::NoTrace);
if (decoder.failed() || magic_word != kWasmMagic) {
result_->error = WasmError(0, "expected wasm magic");
return false;
}
uint32_t magic_version =
decoder.consume_u32("wasm version", ITracer::NoTrace);
if (decoder.failed() || magic_version != kWasmVersion) {
result_->error = WasmError(4, "expected wasm version");
return false;
}
return true;
}
// Process all sections but the code section.
bool ProcessSection(SectionCode section_code,
base::Vector<const uint8_t> bytes,
uint32_t offset) override {
++result_->num_sections;
return true;
}
bool ProcessCodeSectionHeader(int num_functions, uint32_t offset,
std::shared_ptr<WireBytesStorage>,
int code_section_start,
int code_section_length) override {
return true;
}
// Process a function body.
bool ProcessFunctionBody(base::Vector<const uint8_t> bytes,
uint32_t offset) override {
++result_->num_functions;
return true;
}
void OnFinishedChunk() override {}
// Finish the processing of the stream.
void OnFinishedStream(base::OwnedVector<const uint8_t> bytes,
bool after_error) override {
result_->received_bytes = std::move(bytes);
result_->error = after_error;
}
void OnAbort() override {}
bool Deserialize(base::Vector<const uint8_t> module_bytes,
base::Vector<const uint8_t> wire_bytes) override {
return false;
}
private:
MockStreamingResult* const result_;
};
class WasmStreamingDecoderTest : public ::testing::Test {
public:
void ExpectVerifies(base::Vector<const uint8_t> data,
size_t expected_sections, size_t expected_functions) {
for (int split = 0; split <= data.length(); ++split) {
MockStreamingResult result;
auto stream = StreamingDecoder::CreateAsyncStreamingDecoder(
std::make_unique<MockStreamingProcessor>(&result));
stream->OnBytesReceived(data.SubVector(0, split));
stream->OnBytesReceived(data.SubVector(split, data.length()));
stream->Finish();
EXPECT_TRUE(result.ok());
EXPECT_EQ(expected_sections, result.num_sections);
EXPECT_EQ(expected_functions, result.num_functions);
EXPECT_EQ(data, result.received_bytes.as_vector());
}
}
void ExpectFailure(base::Vector<const uint8_t> data) {
for (int split = 0; split <= data.length(); ++split) {
MockStreamingResult result;
auto stream = StreamingDecoder::CreateAsyncStreamingDecoder(
std::make_unique<MockStreamingProcessor>(&result));
stream->OnBytesReceived(data.SubVector(0, split));
stream->OnBytesReceived(data.SubVector(split, data.length()));
stream->Finish();
EXPECT_FALSE(result.ok());
EXPECT_TRUE(result.error);
}
}
};
TEST_F(WasmStreamingDecoderTest, EmptyStream) {
MockStreamingResult result;
auto stream = StreamingDecoder::CreateAsyncStreamingDecoder(
std::make_unique<MockStreamingProcessor>(&result));
stream->Finish();
EXPECT_FALSE(result.ok());
}
TEST_F(WasmStreamingDecoderTest, IncompleteModuleHeader) {
const uint8_t data[] = {U32_LE(kWasmMagic), U32_LE(kWasmVersion)};
{
MockStreamingResult result;
auto stream = StreamingDecoder::CreateAsyncStreamingDecoder(
std::make_unique<MockStreamingProcessor>(&result));
stream->OnBytesReceived(base::VectorOf(data, 1));
stream->Finish();
EXPECT_FALSE(result.ok());
}
for (uint32_t length = 1; length < sizeof(data); ++length) {
ExpectFailure(base::VectorOf(data, length));
}
}
TEST_F(WasmStreamingDecoderTest, MagicAndVersion) {
const uint8_t data[] = {U32_LE(kWasmMagic), U32_LE(kWasmVersion)};
ExpectVerifies(base::ArrayVector(data), 0, 0);
}
TEST_F(WasmStreamingDecoderTest, BadMagic) {
for (uint32_t x = 1; x; x <<= 1) {
const uint8_t data[] = {U32_LE(kWasmMagic ^ x), U32_LE(kWasmVersion)};
ExpectFailure(base::ArrayVector(data));
}
}
TEST_F(WasmStreamingDecoderTest, BadVersion) {
for (uint32_t x = 1; x; x <<= 1) {
const uint8_t data[] = {U32_LE(kWasmMagic), U32_LE(kWasmVersion ^ x)};
ExpectFailure(base::ArrayVector(data));
}
}
TEST_F(WasmStreamingDecoderTest, OneSection) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x6, // Section Length
0x0, // Payload
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0 // 6
};
ExpectVerifies(base::ArrayVector(data), 1, 0);
}
TEST_F(WasmStreamingDecoderTest, OneSection_b) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x86, // Section Length = 6 (LEB)
0x0, // --
0x0, // Payload
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0 // 6
};
ExpectVerifies(base::ArrayVector(data), 1, 0);
}
TEST_F(WasmStreamingDecoderTest, OneShortSection) {
// Short section means that section length + payload is less than 5 bytes,
// which is the maximum size of the length field.
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x2, // Section Length
0x0, // Payload
0x0 // 2
};
ExpectVerifies(base::ArrayVector(data), 1, 0);
}
TEST_F(WasmStreamingDecoderTest, OneShortSection_b) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x82, // Section Length = 2 (LEB)
0x80, // --
0x0, // --
0x0, // Payload
0x0 // 2
};
ExpectVerifies(base::ArrayVector(data), 1, 0);
}
TEST_F(WasmStreamingDecoderTest, OneEmptySection) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x0 // Section Length
};
ExpectVerifies(base::ArrayVector(data), 1, 0);
}
TEST_F(WasmStreamingDecoderTest, OneSectionNotEnoughPayload1) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x6, // Section Length
0x0, // Payload
0x0, // 2
0x0, // 3
0x0, // 4
0x0 // 5
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, OneSectionNotEnoughPayload2) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x6, // Section Length
0x0 // Payload
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, OneSectionInvalidLength) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x80, // Section Length (invalid LEB)
0x80, // --
0x80, // --
0x80, // --
0x80, // --
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, TwoLongSections) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x6, // Section Length
0x0, // Payload
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x2, // Section ID
0x7, // Section Length
0x0, // Payload
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0 // 7
};
ExpectVerifies(base::ArrayVector(data), 2, 0);
}
TEST_F(WasmStreamingDecoderTest, TwoShortSections) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x1, // Section Length
0x0, // Payload
0x2, // Section ID
0x2, // Section Length
0x0, // Payload
0x0, // 2
};
ExpectVerifies(base::ArrayVector(data), 2, 0);
}
TEST_F(WasmStreamingDecoderTest, TwoSectionsShortLong) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x1, // Section Length
0x0, // Payload
0x2, // Section ID
0x7, // Section Length
0x0, // Payload
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0 // 7
};
ExpectVerifies(base::ArrayVector(data), 2, 0);
}
TEST_F(WasmStreamingDecoderTest, TwoEmptySections) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
0x1, // Section ID
0x0, // Section Length
0x2, // Section ID
0x0 // Section Length
};
ExpectVerifies(base::ArrayVector(data), 2, 0);
}
TEST_F(WasmStreamingDecoderTest, OneFunction) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x8, // Section Length
0x1, // Number of Functions
0x6, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
};
ExpectVerifies(base::ArrayVector(data), 0, 1);
}
TEST_F(WasmStreamingDecoderTest, OneShortFunction) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x3, // Section Length
0x1, // Number of Functions
0x1, // Function Length
0x0, // Function
};
ExpectVerifies(base::ArrayVector(data), 0, 1);
}
TEST_F(WasmStreamingDecoderTest, EmptyFunction) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x2, // Section Length
0x1, // Number of Functions
0x0, // Function Length -- ERROR
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, TwoFunctions) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x10, // Section Length
0x2, // Number of Functions
0x6, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x7, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0, // 7
};
ExpectVerifies(base::ArrayVector(data), 0, 2);
}
TEST_F(WasmStreamingDecoderTest, TwoFunctions_b) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0xB, // Section Length
0x2, // Number of Functions
0x1, // Function Length
0x0, // Function
0x7, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0, // 7
};
ExpectVerifies(base::ArrayVector(data), 0, 2);
}
TEST_F(WasmStreamingDecoderTest, CodeSectionLengthZero) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x0, // Section Length
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, CodeSectionLengthTooHigh) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0xD, // Section Length
0x2, // Number of Functions
0x7, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0, // 7
0x1, // Function Length
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, CodeSectionLengthTooHighZeroFunctions) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0xD, // Section Length
0x0, // Number of Functions
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, CodeSectionLengthTooLow) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x9, // Section Length
0x2, // Number of Functions <0>
0x7, // Function Length <1>
0x0, // Function <2>
0x0, // 2 <3>
0x0, // 3 <3>
0x0, // 4 <4>
0x0, // 5 <5>
0x0, // 6 <6>
0x0, // 7 <7>
0x1, // Function Length <8> -- ERROR
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, CodeSectionLengthTooLowEndsInNumFunctions) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x1, // Section Length
0x82, // Number of Functions <0>
0x80, // -- <1> -- ERROR
0x00, // --
0x7, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0, // 7
0x1, // Function Length
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, CodeSectionLengthTooLowEndsInFunctionLength) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x5, // Section Length
0x82, // Number of Functions <0>
0x80, // -- <1>
0x00, // -- <2>
0x87, // Function Length <3>
0x80, // -- <4>
0x00, // -- <5> -- ERROR
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0, // 7
0x1, // Function Length
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, NumberOfFunctionsTooHigh) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0xB, // Section Length
0x4, // Number of Functions
0x7, // Function Length
0x0, // Function
0x0, // 2
0x0, // 3
0x0, // 4
0x0, // 5
0x0, // 6
0x0, // 7
0x1, // Function Length
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, NumberOfFunctionsTooLow) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x8, // Section Length
0x2, // Number of Functions
0x1, // Function Length
0x0, // Function
0x2, // Function Length
0x0, // Function byte#0
0x0, // Function byte#1 -- ERROR
0x1, // Function Length
0x0 // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, TwoCodeSections) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x3, // Section Length
0x1, // Number of Functions
0x1, // Function Length
0x0, // Function
kCodeSectionCode, // Section ID -- ERROR
0x3, // Section Length
0x1, // Number of Functions
0x1, // Function Length
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, UnknownSection) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x3, // Section Length
0x1, // Number of Functions
0x1, // Function Length
0x0, // Function
kUnknownSectionCode, // Section ID
0x3, // Section Length
0x1, // Name Length
0x1, // Name
0x0, // Content
};
ExpectVerifies(base::ArrayVector(data), 1, 1);
}
TEST_F(WasmStreamingDecoderTest, UnknownSectionSandwich) {
const uint8_t data[] = {
U32_LE(kWasmMagic), // --
U32_LE(kWasmVersion), // --
kCodeSectionCode, // Section ID
0x3, // Section Length
0x1, // Number of Functions
0x1, // Function Length
0x0, // Function
kUnknownSectionCode, // Section ID
0x3, // Section Length
0x1, // Name Length
0x1, // Name
0x0, // Content
kCodeSectionCode, // Section ID -- ERROR
0x3, // Section Length
0x1, // Number of Functions
0x1, // Function Length
0x0, // Function
};
ExpectFailure(base::ArrayVector(data));
}
TEST_F(WasmStreamingDecoderTest, InvalidSectionCode) {
uint8_t kInvalidSectionCode = 61;
const uint8_t data[] = {WASM_MODULE_HEADER, SECTION(Invalid)};
ExpectFailure(base::ArrayVector(data));
}
} // namespace wasm
} // namespace internal
} // namespace v8
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