void CRC32Test::testUpdateArrayIndexed() {
static const int SIZE = 3;
unsigned char byteArray[] = {1, 2, 3};
CRC32 crc;
int off = 2;// accessing the 2nd element of byteArray
int len = 1;
int lenError = 3;
int offError = 4;
crc.update( byteArray, SIZE, off, len );
// Ran JDK and discovered that the value of the CRC should be
// 1259060791
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(unsigned char[],int,int) failed to update the checksum to the correct value ",
1259060791LL, crc.getValue() );
CPPUNIT_ASSERT_THROW_MESSAGE(
"Should have thrown an IndexOutOfBoundsException for lenError",
crc.update( byteArray, SIZE, off, lenError ),
IndexOutOfBoundsException );
CPPUNIT_ASSERT_THROW_MESSAGE(
"Should have thrown an IndexOutOfBoundsException for offError",
crc.update( byteArray, SIZE, offError, len ),
IndexOutOfBoundsException );
}
void testCRC32()
{
cout << CRC32String("abc") << endl;
cout << CRC32File("C:\\boot.ini") << endl;
cout << CRC32File("C:\\a\\a.a") << endl;
CRC32 crc32;
crc32.Init();
crc32.Update("", 0);
crc32.Update("a", 1);
crc32.Update("bc", 2);
crc32.Update("defghijklmnopqrstuvwxyz",
(unsigned int)strlen("defghijklmnopqrstuvwxyz"));
crc32.Final();
Print("abcdefghijklmnopqrstuvwxyz", crc32);
crc32.Init();
crc32.Update("", 0);
crc32.Update("a", 1);
crc32.Update("bc", 2);
crc32.Update("defghijklmnopqrstuvwxyz",
(unsigned int)strlen("defghijklmnopqrstuvwxyz"));
crc32.Final();
Print("abcdefghijklmnopqrstuvwxyz", crc32);
CRC32 obj;
obj.Init();
obj.Update("abcdefghijklmnopqrstuvwxyz",
(unsigned int)strlen("abcdefghijklmnopqrstuvwxyz"));
obj.Final();
Print("abcdefghijklmnopqrstuvwxyz", obj);
}
void LogSequence2::save(std::ostream & out)
{
CRC8 crch;
CRC32 crcd;
unsigned char data[9];
unsigned int len;
// Write type
uint8_t type = TYPE_SEQLOG;
crch.writeData(out, &type, sizeof(uint8_t));
// Write numbits
crch.writeData(out, &numbits, sizeof(numbits));
// Write numentries
len=csd::VByte::encode(data, numentries);
crch.writeData(out, data, len);
// Write Header CRC
crch.writeCRC(out);
// Write data
size_t numbytes = numBytesFor(numbits, numentries);
crcd.writeData(out, (unsigned char*)&array[0], numbytes);
// Write Data CRC
crcd.writeCRC(out);
}
void CSD_PFC::save(ostream &out)
{
CRC8 crch;
CRC32 crcd;
unsigned char buf[27]; // 9 bytes per VByte (max) * 3 values.
// Save type
crch.writeData(out, (unsigned char *)&type, sizeof(type));
// Save sizes
uint8_t pos = 0;
pos += VByte::encode(&buf[pos], numstrings);
pos += VByte::encode(&buf[pos], bytes);
pos += VByte::encode(&buf[pos], blocksize);
crch.writeData(out, buf, pos);
crch.writeCRC(out);
// Write block pointers
if(!blocks) {
hdt::LogSequence2 log;
log.save(out);
} else {
blocks->save(out);
}
// Write packed data
if(text) {
crcd.writeData(out, text, bytes);
} else {
assert(numstrings==0);
assert(bytes==0);
}
crcd.writeCRC(out);
}
void CRC32Test::testUpdateI() {
CRC32 crc;
crc.update( 1 );
// Ran JDK and discovered that the value of the CRC should be
// 2768625435
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(1) failed to update the checksum to the correct value ",
2768625435LL, crc.getValue() );
crc.reset();
crc.update( Integer::MAX_VALUE );
// Ran JDK and discovered that the value of the CRC should be
// 4278190080
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(max) failed to update the checksum to the correct value ",
4278190080LL, crc.getValue() );
crc.reset();
crc.update( Integer::MIN_VALUE );
// Ran JDK and discovered that the value of the CRC should be
// 3523407757
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(min) failed to update the checksum to the correct value ",
3523407757LL, crc.getValue() );
}
Uint32 MessageOut::addCRC(){
CRC32 msgCRC;
Uint32 crc;
msgCRC.Init();
crc = msgCRC.GetCRC(this->myData, (this->pos));
write4(crc);
return crc;
}
void CRC32Test::testReset() {
CRC32 crc;
crc.update( 1 );
// Ran JDK and discovered that the value of the CRC should be
// 2768625435
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(int) failed to update the checksum to the correct value ",
2768625435LL, crc.getValue() );
crc.reset();
CPPUNIT_ASSERT_EQUAL_MESSAGE( "reset failed to reset the checksum value to zero",
0LL, crc.getValue() );
}
void LogSequence2::load(std::istream & input)
{
CRC8 crch;
CRC32 crcd;
unsigned char buf[9];
// Read type
uint8_t type;
crch.readData(input, (unsigned char*)&type, sizeof(type));
if(type!=TYPE_SEQLOG) {
//throw "Trying to read a LOGArray but data is not LogArray";
}
// Read numbits
crch.readData(input, (unsigned char*)&numbits, sizeof(numbits));
// Read numentries
uint64_t numentries64 = csd::VByte::decode(input);
unsigned int pos = csd::VByte::encode(buf, numentries64);
crch.update(buf, pos);
// Validate Checksum Header
crc8_t filecrch = crc8_read(input);
if(crch.getValue()!=filecrch) {
throw "Checksum error while reading LogSequence2 header.";
}
// Update local variables and validate
maxval = maxVal(numbits);
numentries = (size_t) numentries64;
if(numbits>sizeof(size_t)*8 || numentries64>std::numeric_limits<size_t>::max()) {
throw "This data structure is too big for this machine";
}
// Calculate data size, reserve buffer.
size_t numbytes = numBytesFor(numbits, numentries);
data.resize(numElementsFor(numbits, numentries));
arraysize = data.size();
array = &data[0];
// Read data
crcd.readData(input, (unsigned char*)&array[0], numbytes);
// Validate checksum data
crc32_t filecrcd = crc32_read(input);
if(crcd.getValue()!=filecrcd) {
throw "Checksum error while reading LogSequence2 Data";
}
IsMapped = false;
}
//! A CRC-32 is calculated over the load data, including any pad bytes
//! that are required in the last data cipher block. Including the
//! pad bytes in the CRC makes it vastly easier for the ROM to calculate
//! the CRC for validation.
uint32_t EncoreBootImage::LoadCommand::calculateCRC() const
{
uint32_t result;
CRC32 crc;
crc.update(m_data, m_length);
if (m_padCount)
{
// include random padding in the CRC
crc.update(m_padding, m_padCount);
}
crc.truncatedFinal(reinterpret_cast<uint8_t*>(&result), sizeof(result));
return result;
}
void CDiskPartHandlerBase::stop()
{
if (!eoi)
checkFileCrc = false; // cannot perform file CRC if diskread has not read whole file.
CRC32 fileCRC;
close(fileCRC);
if (!activity.abortSoon && checkFileCrc)
{
ActPrintLog(&activity, "%s[part=%d]: CRC Stored=%x, calculated=%x file(%s)", kindStr, which, storedCrc, fileCRC.get(), filename.get());
if (fileCRC.get() != storedCrc)
throw MakeThorOperatorException(TE_FileCrc, "CRC Failure having read file: %s", filename.get());
checkFileCrc = false;
}
}
uint32_t File::crc32() const
{
istream* stream = openInputStream(istream::binary);
CRC32 crc;
char buf[4096];
while (!stream->eof()) {
stream->read(buf, sizeof(buf));
crc.append(buf, stream->gcount());
}
delete stream;
return crc.getChecksum();
}
virtual void close(CRC32 &fileCRC)
{
CriticalBlock block(statsCs);
xmlParser.clear();
inputIOstream.clear();
if (checkFileCrc)
{
fileCRC.reset(~crcStream->queryCrc()); // MORE should prob. change stream to use CRC32
crcStream.clear();
}
mergeStats(fileStats, iFileIO);
iFileIO.clear();
}
virtual void close(CRC32 &fileCRC)
{
xmlParser.clear();
inputIOstream.clear();
if (checkFileCrc)
{
fileCRC.reset(~crcStream->queryCrc()); // MORE should prob. change stream to use CRC32
crcStream.clear();
}
Owned<IFileIO> partFileIO;
{
CriticalBlock block(statsCs);
partFileIO.setown(iFileIO.getClear());
}
mergeStats(fileStats, partFileIO);
}
void CRC32Test::testUpdateArray() {
unsigned char byteArray[] = { 1, 2 };
CRC32 crc;
crc.update( byteArray, 2, 0, 2 );
// Ran JDK and discovered that the value of the CRC should be
// 3066839698
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(unsigned char[]) failed to update the checksum to the correct value ",
3066839698LL, crc.getValue() );
crc.reset();
std::vector<unsigned char> byteEmpty( 10000, 0 );
crc.update( byteEmpty );
// Ran JDK and discovered that the value of the CRC should be
// 1295764014
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(unsigned char[]) failed to update the checksum to the correct value ",
1295764014LL, crc.getValue() );
}
static void Print(const string &str, CRC32 &crc32)
{
cout << "CRC32-32(\"" << str << "\") = " << crc32.ToString() << endl;
cout << "CRC32-32(\"" << str << "\") = " << crc32.GetValue() << endl;
}
CSD* CSD_PFC::load(istream & fp)
{
CRC8 crch;
CRC32 crcd;
unsigned char buf[27]; // 9 bytes per VByte (max) * 3 values.
CSD_PFC *dicc = new CSD_PFC();
// Load variables
dicc->type = PFC; // Type already read by CSD
dicc->numstrings = (uint32_t) VByte::decode(fp);
dicc->bytes = VByte::decode(fp);
dicc->blocksize = (uint32_t) VByte::decode(fp);
// Calculate variables CRC
crch.update(&dicc->type, sizeof(dicc->type));
uint8_t pos = 0;
pos += VByte::encode(&buf[pos], dicc->numstrings);
pos += VByte::encode(&buf[pos], dicc->bytes);
pos += VByte::encode(&buf[pos], dicc->blocksize);
crch.update(buf, pos);
crc8_t filecrc = crc8_read(fp);
if(crch.getValue()!=filecrc) {
throw std::runtime_error("Checksum error while reading Plain Front Coding Header.");
}
// Load blocks
dicc->blocks = new hdt::LogSequence2();
dicc->blocks->load(fp);
dicc->nblocks = dicc->blocks->getNumberOfElements()-1;
// Load strings
if(dicc->bytes && dicc->numstrings) {
dicc->text = (unsigned char *)malloc(dicc->bytes);
const unsigned int blocksize = 8192;
uint64_t counter=0;
unsigned char *ptr = (unsigned char *)dicc->text;
while(counter<dicc->bytes && fp.good()) {
crcd.readData(fp, ptr, dicc->bytes-counter > blocksize ? blocksize : dicc->bytes-counter);
ptr += fp.gcount();
counter += fp.gcount();
}
if(counter!=dicc->bytes) {
throw std::runtime_error("Could not read all the data section of the Plain Front Coding.");
}
} else {
// Make sure that all is zero.
dicc->text = NULL;
dicc->numstrings = 0;
dicc->bytes = 0;
dicc->nblocks = 0;
delete dicc->blocks;
}
crc32_t filecrcd = crc32_read(fp);
if(filecrcd!=crcd.getValue()) {
throw std::runtime_error("Checksum error in the data section of the Plain Front Coding.");
}
return dicc;
}
std::string getCrc(const boost::filesystem::path& path)
{
CRC32 algorithm;
hashFile(path, algorithm);
return algorithm.getHash();
}
bool SyringeDebugger::RetrieveInfo(std::string filename)
{
bControlLoaded = false;
exe = std::move(filename);
Log::WriteLine("SyringeDebugger::RetrieveInfo: Retrieving info from the executable file...");
PortableExecutable pe(exe);
if(pe.IsValid())
{
DWORD dwImageBase = pe.GetImageBase();
//Creation time stamp
dwTimeStamp = pe.GetPEHeader().FileHeader.TimeDateStamp;
//Entry point
pcEntryPoint = reinterpret_cast<void*>(dwImageBase + pe.GetPEHeader().OptionalHeader.AddressOfEntryPoint);
//Get Imports
pImLoadLibrary = nullptr;
pImGetProcAddress = nullptr;
for(const auto& import : pe.GetImports()) {
if(_strcmpi(import.Name.c_str(), "KERNEL32.DLL") == 0) {
for(const auto& thunk : import.vecThunkData) {
if(_strcmpi(thunk.Name.c_str(), "GETPROCADDRESS") == 0) {
pImGetProcAddress = reinterpret_cast<void*>(dwImageBase + thunk.Address);
} else if(_strcmpi(thunk.Name.c_str(), "LOADLIBRARYA") == 0) {
pImLoadLibrary = reinterpret_cast<void*>(dwImageBase + thunk.Address);
}
}
}
}
if(!pImGetProcAddress || !pImLoadLibrary) {
Log::WriteLine("SyringeDebugger::RetrieveInfo: ERROR: Either a LoadLibraryA or a GetProcAddress import could not be found!");
return false;
}
} else {
Log::WriteLine("SyringeDebugger::RetrieveInfo: Failed to open the executable!");
return false;
}
// read meta information: size and checksum
ifstream is;
is.open(exe, ifstream::binary);
is.seekg(0, ifstream::end);
dwExeSize = static_cast<DWORD>(is.tellg());
is.seekg(0, ifstream::beg);
CRC32 crc;
char buffer[0x1000];
while(std::streamsize read = is.read(buffer, sizeof(buffer)).gcount()) {
crc.compute(buffer, read);
}
dwExeCRC = crc.value();
is.close();
Log::WriteLine("SyringeDebugger::RetrieveInfo: Executable information successfully retrieved.");
Log::WriteLine("\texe = %s", exe.c_str());
Log::WriteLine("\tpImLoadLibrary = 0x%08X", pImLoadLibrary);
Log::WriteLine("\tpImGetProcAddress = 0x%08X", pImGetProcAddress);
Log::WriteLine("\tpcEntryPoint = 0x%08X", pcEntryPoint);
Log::WriteLine("\tdwExeSize = 0x%08X", dwExeSize);
Log::WriteLine("\tdwExeCRC = 0x%08X", dwExeCRC);
Log::WriteLine("\tdwTimestamp = 0x%08X", dwTimeStamp);
Log::WriteLine();
Log::WriteLine("SyringeDebugger::RetrieveInfo: Opening %s to determine imports.", exe.c_str());
bControlLoaded = true;
return true;
}
void tally(CRC32 & crc) { crc.tally(sizeof(offset_t) + thisrowsize, buffer); }
void CRC32Test::testConstructor() {
CRC32 crc;
CPPUNIT_ASSERT_EQUAL_MESSAGE( "Constructor of CRC32 failed", 0LL, crc.getValue() );
}
void CRC32Test::testGetValue() {
// test methods of java.util.zip.crc32.getValue()
CRC32 crc;
CPPUNIT_ASSERT_EQUAL_MESSAGE( "getValue() should return a zero as a result of constructing a CRC32 instance",
0LL, crc.getValue() );
crc.reset();
crc.update( Integer::MAX_VALUE );
// Ran JDK and discovered that the value of the CRC should be
// 4278190080
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(max) failed to update the checksum to the correct value ",
4278190080LL, crc.getValue() );
crc.reset();
std::vector<unsigned char> byteEmpty( 10000, 0 );
crc.update( byteEmpty );
// Ran JDK and discovered that the value of the CRC should be
// 1295764014
CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(byte[]) failed to update the checksum to the correct value ",
1295764014LL, crc.getValue() );
crc.reset();
crc.update( 1 );
// Ran JDK and discovered that the value of the CRC should be
// 2768625435
// CPPUNIT_ASSERT_EQUAL_MESSAGE( "update(int) failed to update the checksum to the correct
// value ",2768625435L, crc.getValue());
crc.reset();
CPPUNIT_ASSERT_EQUAL_MESSAGE( "reset failed to reset the checksum value to zero",
0LL, crc.getValue());
}
