mirror of
https://github.com/RPCS3/llvm-mirror.git
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376 lines
15 KiB
C++
376 lines
15 KiB
C++
#include "FuzzerInternal.h"
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#include "gtest/gtest.h"
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#include <set>
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using namespace fuzzer;
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// For now, have LLVMFuzzerTestOneInput just to make it link.
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// Later we may want to make unittests that actually call LLVMFuzzerTestOneInput.
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extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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abort();
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}
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TEST(Fuzzer, CrossOver) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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Unit A({0, 1, 2}), B({5, 6, 7});
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Unit C;
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Unit Expected[] = {
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{ 0 },
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{ 0, 1 },
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{ 0, 5 },
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{ 0, 1, 2 },
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{ 0, 1, 5 },
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{ 0, 5, 1 },
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{ 0, 5, 6 },
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{ 0, 1, 2, 5 },
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{ 0, 1, 5, 2 },
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{ 0, 1, 5, 6 },
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{ 0, 5, 1, 2 },
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{ 0, 5, 1, 6 },
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{ 0, 5, 6, 1 },
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{ 0, 5, 6, 7 },
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{ 0, 1, 2, 5, 6 },
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{ 0, 1, 5, 2, 6 },
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{ 0, 1, 5, 6, 2 },
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{ 0, 1, 5, 6, 7 },
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{ 0, 5, 1, 2, 6 },
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{ 0, 5, 1, 6, 2 },
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{ 0, 5, 1, 6, 7 },
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{ 0, 5, 6, 1, 2 },
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{ 0, 5, 6, 1, 7 },
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{ 0, 5, 6, 7, 1 },
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{ 0, 1, 2, 5, 6, 7 },
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{ 0, 1, 5, 2, 6, 7 },
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{ 0, 1, 5, 6, 2, 7 },
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{ 0, 1, 5, 6, 7, 2 },
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{ 0, 5, 1, 2, 6, 7 },
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{ 0, 5, 1, 6, 2, 7 },
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{ 0, 5, 1, 6, 7, 2 },
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{ 0, 5, 6, 1, 2, 7 },
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{ 0, 5, 6, 1, 7, 2 },
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{ 0, 5, 6, 7, 1, 2 }
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};
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for (size_t Len = 1; Len < 8; Len++) {
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std::set<Unit> FoundUnits, ExpectedUnitsWitThisLength;
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for (int Iter = 0; Iter < 3000; Iter++) {
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C.resize(Len);
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size_t NewSize = MD.CrossOver(A.data(), A.size(), B.data(), B.size(),
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C.data(), C.size());
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C.resize(NewSize);
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FoundUnits.insert(C);
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}
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for (const Unit &U : Expected)
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if (U.size() <= Len)
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ExpectedUnitsWitThisLength.insert(U);
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EXPECT_EQ(ExpectedUnitsWitThisLength, FoundUnits);
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}
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}
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TEST(Fuzzer, Hash) {
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uint8_t A[] = {'a', 'b', 'c'};
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fuzzer::Unit U(A, A + sizeof(A));
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EXPECT_EQ("a9993e364706816aba3e25717850c26c9cd0d89d", fuzzer::Hash(U));
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U.push_back('d');
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EXPECT_EQ("81fe8bfe87576c3ecb22426f8e57847382917acf", fuzzer::Hash(U));
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}
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typedef size_t (MutationDispatcher::*Mutator)(uint8_t *Data, size_t Size,
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size_t MaxSize);
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void TestEraseByte(Mutator M, int NumIter) {
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uint8_t REM0[8] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t REM1[8] = {0x00, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t REM2[8] = {0x00, 0x11, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t REM3[8] = {0x00, 0x11, 0x22, 0x44, 0x55, 0x66, 0x77};
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uint8_t REM4[8] = {0x00, 0x11, 0x22, 0x33, 0x55, 0x66, 0x77};
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uint8_t REM5[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x66, 0x77};
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uint8_t REM6[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x77};
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uint8_t REM7[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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int FoundMask = 0;
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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size_t NewSize = (MD.*M)(T, sizeof(T), sizeof(T));
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if (NewSize == 7 && !memcmp(REM0, T, 7)) FoundMask |= 1 << 0;
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if (NewSize == 7 && !memcmp(REM1, T, 7)) FoundMask |= 1 << 1;
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if (NewSize == 7 && !memcmp(REM2, T, 7)) FoundMask |= 1 << 2;
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if (NewSize == 7 && !memcmp(REM3, T, 7)) FoundMask |= 1 << 3;
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if (NewSize == 7 && !memcmp(REM4, T, 7)) FoundMask |= 1 << 4;
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if (NewSize == 7 && !memcmp(REM5, T, 7)) FoundMask |= 1 << 5;
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if (NewSize == 7 && !memcmp(REM6, T, 7)) FoundMask |= 1 << 6;
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if (NewSize == 7 && !memcmp(REM7, T, 7)) FoundMask |= 1 << 7;
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}
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EXPECT_EQ(FoundMask, 255);
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}
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TEST(FuzzerMutate, EraseByte1) {
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TestEraseByte(&MutationDispatcher::Mutate_EraseByte, 100);
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}
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TEST(FuzzerMutate, EraseByte2) {
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TestEraseByte(&MutationDispatcher::Mutate, 1000);
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}
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void TestInsertByte(Mutator M, int NumIter) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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int FoundMask = 0;
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uint8_t INS0[8] = {0xF1, 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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uint8_t INS1[8] = {0x00, 0xF2, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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uint8_t INS2[8] = {0x00, 0x11, 0xF3, 0x22, 0x33, 0x44, 0x55, 0x66};
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uint8_t INS3[8] = {0x00, 0x11, 0x22, 0xF4, 0x33, 0x44, 0x55, 0x66};
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uint8_t INS4[8] = {0x00, 0x11, 0x22, 0x33, 0xF5, 0x44, 0x55, 0x66};
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uint8_t INS5[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0xF6, 0x55, 0x66};
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uint8_t INS6[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0xF7, 0x66};
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uint8_t INS7[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0xF8};
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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size_t NewSize = (MD.*M)(T, 7, 8);
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if (NewSize == 8 && !memcmp(INS0, T, 8)) FoundMask |= 1 << 0;
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if (NewSize == 8 && !memcmp(INS1, T, 8)) FoundMask |= 1 << 1;
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if (NewSize == 8 && !memcmp(INS2, T, 8)) FoundMask |= 1 << 2;
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if (NewSize == 8 && !memcmp(INS3, T, 8)) FoundMask |= 1 << 3;
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if (NewSize == 8 && !memcmp(INS4, T, 8)) FoundMask |= 1 << 4;
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if (NewSize == 8 && !memcmp(INS5, T, 8)) FoundMask |= 1 << 5;
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if (NewSize == 8 && !memcmp(INS6, T, 8)) FoundMask |= 1 << 6;
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if (NewSize == 8 && !memcmp(INS7, T, 8)) FoundMask |= 1 << 7;
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}
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EXPECT_EQ(FoundMask, 255);
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}
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TEST(FuzzerMutate, InsertByte1) {
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TestInsertByte(&MutationDispatcher::Mutate_InsertByte, 1 << 15);
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}
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TEST(FuzzerMutate, InsertByte2) {
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TestInsertByte(&MutationDispatcher::Mutate, 1 << 17);
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}
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void TestChangeByte(Mutator M, int NumIter) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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int FoundMask = 0;
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uint8_t CH0[8] = {0xF0, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH1[8] = {0x00, 0xF1, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH2[8] = {0x00, 0x11, 0xF2, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH3[8] = {0x00, 0x11, 0x22, 0xF3, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH4[8] = {0x00, 0x11, 0x22, 0x33, 0xF4, 0x55, 0x66, 0x77};
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uint8_t CH5[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0xF5, 0x66, 0x77};
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uint8_t CH6[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0xF5, 0x77};
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uint8_t CH7[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0xF7};
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[9] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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size_t NewSize = (MD.*M)(T, 8, 9);
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if (NewSize == 8 && !memcmp(CH0, T, 8)) FoundMask |= 1 << 0;
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if (NewSize == 8 && !memcmp(CH1, T, 8)) FoundMask |= 1 << 1;
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if (NewSize == 8 && !memcmp(CH2, T, 8)) FoundMask |= 1 << 2;
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if (NewSize == 8 && !memcmp(CH3, T, 8)) FoundMask |= 1 << 3;
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if (NewSize == 8 && !memcmp(CH4, T, 8)) FoundMask |= 1 << 4;
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if (NewSize == 8 && !memcmp(CH5, T, 8)) FoundMask |= 1 << 5;
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if (NewSize == 8 && !memcmp(CH6, T, 8)) FoundMask |= 1 << 6;
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if (NewSize == 8 && !memcmp(CH7, T, 8)) FoundMask |= 1 << 7;
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}
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EXPECT_EQ(FoundMask, 255);
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}
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TEST(FuzzerMutate, ChangeByte1) {
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TestChangeByte(&MutationDispatcher::Mutate_ChangeByte, 1 << 15);
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}
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TEST(FuzzerMutate, ChangeByte2) {
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TestChangeByte(&MutationDispatcher::Mutate, 1 << 17);
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}
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void TestChangeBit(Mutator M, int NumIter) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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int FoundMask = 0;
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uint8_t CH0[8] = {0x01, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH1[8] = {0x00, 0x13, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH2[8] = {0x00, 0x11, 0x02, 0x33, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH3[8] = {0x00, 0x11, 0x22, 0x37, 0x44, 0x55, 0x66, 0x77};
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uint8_t CH4[8] = {0x00, 0x11, 0x22, 0x33, 0x54, 0x55, 0x66, 0x77};
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uint8_t CH5[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x54, 0x66, 0x77};
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uint8_t CH6[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x76, 0x77};
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uint8_t CH7[8] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0xF7};
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[9] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77};
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size_t NewSize = (MD.*M)(T, 8, 9);
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if (NewSize == 8 && !memcmp(CH0, T, 8)) FoundMask |= 1 << 0;
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if (NewSize == 8 && !memcmp(CH1, T, 8)) FoundMask |= 1 << 1;
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if (NewSize == 8 && !memcmp(CH2, T, 8)) FoundMask |= 1 << 2;
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if (NewSize == 8 && !memcmp(CH3, T, 8)) FoundMask |= 1 << 3;
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if (NewSize == 8 && !memcmp(CH4, T, 8)) FoundMask |= 1 << 4;
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if (NewSize == 8 && !memcmp(CH5, T, 8)) FoundMask |= 1 << 5;
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if (NewSize == 8 && !memcmp(CH6, T, 8)) FoundMask |= 1 << 6;
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if (NewSize == 8 && !memcmp(CH7, T, 8)) FoundMask |= 1 << 7;
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}
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EXPECT_EQ(FoundMask, 255);
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}
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TEST(FuzzerMutate, ChangeBit1) {
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TestChangeBit(&MutationDispatcher::Mutate_ChangeBit, 1 << 16);
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}
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TEST(FuzzerMutate, ChangeBit2) {
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TestChangeBit(&MutationDispatcher::Mutate, 1 << 18);
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}
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void TestShuffleBytes(Mutator M, int NumIter) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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int FoundMask = 0;
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uint8_t CH0[7] = {0x00, 0x22, 0x11, 0x33, 0x44, 0x55, 0x66};
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uint8_t CH1[7] = {0x11, 0x00, 0x33, 0x22, 0x44, 0x55, 0x66};
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uint8_t CH2[7] = {0x00, 0x33, 0x11, 0x22, 0x44, 0x55, 0x66};
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uint8_t CH3[7] = {0x00, 0x11, 0x22, 0x44, 0x55, 0x66, 0x33};
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uint8_t CH4[7] = {0x00, 0x11, 0x22, 0x33, 0x55, 0x44, 0x66};
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[7] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66};
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size_t NewSize = (MD.*M)(T, 7, 7);
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if (NewSize == 7 && !memcmp(CH0, T, 7)) FoundMask |= 1 << 0;
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if (NewSize == 7 && !memcmp(CH1, T, 7)) FoundMask |= 1 << 1;
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if (NewSize == 7 && !memcmp(CH2, T, 7)) FoundMask |= 1 << 2;
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if (NewSize == 7 && !memcmp(CH3, T, 7)) FoundMask |= 1 << 3;
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if (NewSize == 7 && !memcmp(CH4, T, 7)) FoundMask |= 1 << 4;
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}
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EXPECT_EQ(FoundMask, 31);
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}
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TEST(FuzzerMutate, ShuffleBytes1) {
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TestShuffleBytes(&MutationDispatcher::Mutate_ShuffleBytes, 1 << 15);
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}
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TEST(FuzzerMutate, ShuffleBytes2) {
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TestShuffleBytes(&MutationDispatcher::Mutate, 1 << 16);
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}
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void TestAddWordFromDictionary(Mutator M, int NumIter) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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uint8_t Word1[4] = {0xAA, 0xBB, 0xCC, 0xDD};
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uint8_t Word2[3] = {0xFF, 0xEE, 0xEF};
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MD.AddWordToDictionary(Word1, sizeof(Word1));
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MD.AddWordToDictionary(Word2, sizeof(Word2));
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int FoundMask = 0;
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uint8_t CH0[7] = {0x00, 0x11, 0x22, 0xAA, 0xBB, 0xCC, 0xDD};
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uint8_t CH1[7] = {0x00, 0x11, 0xAA, 0xBB, 0xCC, 0xDD, 0x22};
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uint8_t CH2[7] = {0x00, 0xAA, 0xBB, 0xCC, 0xDD, 0x11, 0x22};
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uint8_t CH3[7] = {0xAA, 0xBB, 0xCC, 0xDD, 0x00, 0x11, 0x22};
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uint8_t CH4[6] = {0x00, 0x11, 0x22, 0xFF, 0xEE, 0xEF};
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uint8_t CH5[6] = {0x00, 0x11, 0xFF, 0xEE, 0xEF, 0x22};
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uint8_t CH6[6] = {0x00, 0xFF, 0xEE, 0xEF, 0x11, 0x22};
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uint8_t CH7[6] = {0xFF, 0xEE, 0xEF, 0x00, 0x11, 0x22};
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[7] = {0x00, 0x11, 0x22};
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size_t NewSize = (MD.*M)(T, 3, 7);
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if (NewSize == 7 && !memcmp(CH0, T, 7)) FoundMask |= 1 << 0;
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if (NewSize == 7 && !memcmp(CH1, T, 7)) FoundMask |= 1 << 1;
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if (NewSize == 7 && !memcmp(CH2, T, 7)) FoundMask |= 1 << 2;
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if (NewSize == 7 && !memcmp(CH3, T, 7)) FoundMask |= 1 << 3;
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if (NewSize == 6 && !memcmp(CH4, T, 6)) FoundMask |= 1 << 4;
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if (NewSize == 6 && !memcmp(CH5, T, 6)) FoundMask |= 1 << 5;
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if (NewSize == 6 && !memcmp(CH6, T, 6)) FoundMask |= 1 << 6;
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if (NewSize == 6 && !memcmp(CH7, T, 6)) FoundMask |= 1 << 7;
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}
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EXPECT_EQ(FoundMask, 255);
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}
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TEST(FuzzerMutate, AddWordFromDictionary1) {
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TestAddWordFromDictionary(&MutationDispatcher::Mutate_AddWordFromDictionary,
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1 << 15);
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}
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TEST(FuzzerMutate, AddWordFromDictionary2) {
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TestAddWordFromDictionary(&MutationDispatcher::Mutate, 1 << 15);
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}
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void TestChangeASCIIInteger(Mutator M, int NumIter) {
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FuzzerRandomLibc Rand(0);
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MutationDispatcher MD(Rand);
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uint8_t CH0[8] = {'1', '2', '3', '4', '5', '6', '7', '7'};
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uint8_t CH1[8] = {'1', '2', '3', '4', '5', '6', '7', '9'};
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uint8_t CH2[8] = {'2', '4', '6', '9', '1', '3', '5', '6'};
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uint8_t CH3[8] = {'0', '6', '1', '7', '2', '8', '3', '9'};
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int FoundMask = 0;
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for (int i = 0; i < NumIter; i++) {
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uint8_t T[8] = {'1', '2', '3', '4', '5', '6', '7', '8'};
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size_t NewSize = (MD.*M)(T, 8, 8);
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/**/ if (NewSize == 8 && !memcmp(CH0, T, 8)) FoundMask |= 1 << 0;
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else if (NewSize == 8 && !memcmp(CH1, T, 8)) FoundMask |= 1 << 1;
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else if (NewSize == 8 && !memcmp(CH2, T, 8)) FoundMask |= 1 << 2;
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else if (NewSize == 8 && !memcmp(CH3, T, 8)) FoundMask |= 1 << 3;
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else if (NewSize == 8) FoundMask |= 1 << 4;
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}
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EXPECT_EQ(FoundMask, 31);
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}
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TEST(FuzzerMutate, ChangeASCIIInteger1) {
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TestChangeASCIIInteger(&MutationDispatcher::Mutate_ChangeASCIIInteger,
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1 << 15);
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}
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TEST(FuzzerMutate, ChangeASCIIInteger2) {
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TestChangeASCIIInteger(&MutationDispatcher::Mutate, 1 << 15);
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}
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TEST(FuzzerDictionary, ParseOneDictionaryEntry) {
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Unit U;
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EXPECT_FALSE(ParseOneDictionaryEntry("", &U));
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EXPECT_FALSE(ParseOneDictionaryEntry(" ", &U));
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EXPECT_FALSE(ParseOneDictionaryEntry("\t ", &U));
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EXPECT_FALSE(ParseOneDictionaryEntry(" \" ", &U));
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EXPECT_FALSE(ParseOneDictionaryEntry(" zz\" ", &U));
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EXPECT_FALSE(ParseOneDictionaryEntry(" \"zz ", &U));
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EXPECT_FALSE(ParseOneDictionaryEntry(" \"\" ", &U));
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EXPECT_TRUE(ParseOneDictionaryEntry("\"a\"", &U));
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EXPECT_EQ(U, Unit({'a'}));
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EXPECT_TRUE(ParseOneDictionaryEntry("\"abc\"", &U));
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EXPECT_EQ(U, Unit({'a', 'b', 'c'}));
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EXPECT_TRUE(ParseOneDictionaryEntry("abc=\"abc\"", &U));
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EXPECT_EQ(U, Unit({'a', 'b', 'c'}));
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EXPECT_FALSE(ParseOneDictionaryEntry("\"\\\"", &U));
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|
EXPECT_TRUE(ParseOneDictionaryEntry("\"\\\\\"", &U));
|
|
EXPECT_EQ(U, Unit({'\\'}));
|
|
EXPECT_TRUE(ParseOneDictionaryEntry("\"\\xAB\"", &U));
|
|
EXPECT_EQ(U, Unit({0xAB}));
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|
EXPECT_TRUE(ParseOneDictionaryEntry("\"\\xABz\\xDE\"", &U));
|
|
EXPECT_EQ(U, Unit({0xAB, 'z', 0xDE}));
|
|
EXPECT_TRUE(ParseOneDictionaryEntry("\"#\"", &U));
|
|
EXPECT_EQ(U, Unit({'#'}));
|
|
EXPECT_TRUE(ParseOneDictionaryEntry("\"\\\"\"", &U));
|
|
EXPECT_EQ(U, Unit({'"'}));
|
|
}
|
|
|
|
TEST(FuzzerDictionary, ParseDictionaryFile) {
|
|
std::vector<Unit> Units;
|
|
EXPECT_FALSE(ParseDictionaryFile("zzz\n", &Units));
|
|
EXPECT_FALSE(ParseDictionaryFile("", &Units));
|
|
EXPECT_TRUE(ParseDictionaryFile("\n", &Units));
|
|
EXPECT_EQ(Units.size(), 0U);
|
|
EXPECT_TRUE(ParseDictionaryFile("#zzzz a b c d\n", &Units));
|
|
EXPECT_EQ(Units.size(), 0U);
|
|
EXPECT_TRUE(ParseDictionaryFile(" #zzzz\n", &Units));
|
|
EXPECT_EQ(Units.size(), 0U);
|
|
EXPECT_TRUE(ParseDictionaryFile(" #zzzz\n", &Units));
|
|
EXPECT_EQ(Units.size(), 0U);
|
|
EXPECT_TRUE(ParseDictionaryFile(" #zzzz\naaa=\"aa\"", &Units));
|
|
EXPECT_EQ(Units, std::vector<Unit>({Unit({'a', 'a'})}));
|
|
EXPECT_TRUE(
|
|
ParseDictionaryFile(" #zzzz\naaa=\"aa\"\n\nabc=\"abc\"", &Units));
|
|
EXPECT_EQ(Units,
|
|
std::vector<Unit>({Unit({'a', 'a'}), Unit({'a', 'b', 'c'})}));
|
|
}
|
|
|
|
TEST(FuzzerUtil, Base64) {
|
|
EXPECT_EQ("", Base64({}));
|
|
EXPECT_EQ("YQ==", Base64({'a'}));
|
|
EXPECT_EQ("eA==", Base64({'x'}));
|
|
EXPECT_EQ("YWI=", Base64({'a', 'b'}));
|
|
EXPECT_EQ("eHk=", Base64({'x', 'y'}));
|
|
EXPECT_EQ("YWJj", Base64({'a', 'b', 'c'}));
|
|
EXPECT_EQ("eHl6", Base64({'x', 'y', 'z'}));
|
|
EXPECT_EQ("YWJjeA==", Base64({'a', 'b', 'c', 'x'}));
|
|
EXPECT_EQ("YWJjeHk=", Base64({'a', 'b', 'c', 'x', 'y'}));
|
|
EXPECT_EQ("YWJjeHl6", Base64({'a', 'b', 'c', 'x', 'y', 'z'}));
|
|
}
|