private void CalculateVolumeChecksum(byte[] Image, UInt32 Offset)
{
UInt16 VolumeHeaderSize = ByteOperations.ReadUInt16(Image, Offset + 0x30);
ByteOperations.WriteUInt16(Image, Offset + 0x32, 0); // Clear checksum
UInt16 NewChecksum = ByteOperations.CalculateChecksum16(Image, Offset, VolumeHeaderSize);
ByteOperations.WriteUInt16(Image, Offset + 0x32, NewChecksum);
}
private bool VerifyVolumeChecksum(byte[] Image, UInt32 Offset)
{
UInt16 VolumeHeaderSize = ByteOperations.ReadUInt16(Image, Offset + 0x30);
byte[] Header = new byte[VolumeHeaderSize];
System.Buffer.BlockCopy(Image, (int)Offset, Header, 0, VolumeHeaderSize);
ByteOperations.WriteUInt16(Header, 0x32, 0); // Clear checksum
UInt16 CurrentChecksum = ByteOperations.ReadUInt16(Image, Offset + 0x32);
UInt16 NewChecksum = ByteOperations.CalculateChecksum16(Header, 0, VolumeHeaderSize);
return(CurrentChecksum == NewChecksum);
}
private bool VerifyFileChecksum(byte[] Image, UInt32 Offset)
{
// This function only checks fixed checksum-values 0x55 and 0xAA.
UInt16 FileHeaderSize = 0x18;
UInt32 FileSize = ByteOperations.ReadUInt24(Image, Offset + 0x14);
byte[] Header = new byte[FileHeaderSize - 1];
System.Buffer.BlockCopy(Image, (int)Offset, Header, 0, FileHeaderSize - 1);
ByteOperations.WriteUInt16(Header, 0x10, 0); // Clear checksum
byte CurrentHeaderChecksum = ByteOperations.ReadUInt8(Image, Offset + 0x10);
byte CalculatedHeaderChecksum = ByteOperations.CalculateChecksum8(Header, 0, (UInt32)FileHeaderSize - 1);
if (CurrentHeaderChecksum != CalculatedHeaderChecksum)
{
return(false);
}
byte FileAttribs = ByteOperations.ReadUInt8(Image, Offset + 0x13);
byte CurrentFileChecksum = ByteOperations.ReadUInt8(Image, Offset + 0x11);
if ((FileAttribs & 0x40) > 0)
{
// Calculate file checksum
byte CalculatedFileChecksum = ByteOperations.CalculateChecksum8(Image, Offset + FileHeaderSize, FileSize - FileHeaderSize);
if (CurrentFileChecksum != CalculatedFileChecksum)
{
return(false);
}
}
else
{
// Fixed file checksum
if ((CurrentFileChecksum != 0xAA) && (CurrentFileChecksum != 0x55))
{
return(false);
}
}
return(true);
}
public bool ConnectToProgrammerInTestMode()
{
byte[] HelloPacketFromPcToProgrammer = new byte[0x20C];
ByteOperations.WriteUInt32(HelloPacketFromPcToProgrammer, 0, 0x57503730);
ByteOperations.WriteUInt32(HelloPacketFromPcToProgrammer, 0x28, 0x57503730);
ByteOperations.WriteUInt32(HelloPacketFromPcToProgrammer, 0x208, 0x57503730);
ByteOperations.WriteUInt16(HelloPacketFromPcToProgrammer, 0x48, 0x4445);
bool HandshakeCompleted = ConnectToProgrammer(HelloPacketFromPcToProgrammer);
if (HandshakeCompleted)
{
LogFile.Log("Handshake completed with programmer in testmode", LogType.FileOnly);
}
else
{
LogFile.Log("Handshake with programmer failed", LogType.FileOnly);
}
return(HandshakeCompleted);
}
private void CalculateFileChecksum(byte[] Image, UInt32 Offset)
{
UInt16 FileHeaderSize = 0x18;
UInt32 FileSize = ByteOperations.ReadUInt24(Image, Offset + 0x14);
ByteOperations.WriteUInt16(Image, Offset + 0x10, 0); // Clear checksum
byte NewChecksum = ByteOperations.CalculateChecksum8(Image, Offset, (UInt32)FileHeaderSize - 1);
ByteOperations.WriteUInt8(Image, Offset + 0x10, NewChecksum); // File-Header checksum
byte FileAttribs = ByteOperations.ReadUInt8(Image, Offset + 0x13);
if ((FileAttribs & 0x40) > 0)
{
// Calculate file checksum
byte CalculatedFileChecksum = ByteOperations.CalculateChecksum8(Image, Offset + FileHeaderSize, FileSize - FileHeaderSize);
ByteOperations.WriteUInt8(Image, Offset + 0x11, CalculatedFileChecksum);
}
else
{
// Fixed file checksum
ByteOperations.WriteUInt8(Image, Offset + 0x11, 0xAA);
}
}
// V3 exploit
// Magic
//
internal async static Task LumiaV3CustomFlash(PhoneNotifierViewModel Notifier, List <FlashPart> FlashParts, bool CheckSectorAlignment = true, SetWorkingStatus SetWorkingStatus = null, UpdateWorkingStatus UpdateWorkingStatus = null, ExitSuccess ExitSuccess = null, ExitFailure ExitFailure = null)
{
if (SetWorkingStatus == null)
{
SetWorkingStatus = (m, s, v, a, st) => { }
}
;
if (UpdateWorkingStatus == null)
{
UpdateWorkingStatus = (m, s, v, st) => { }
}
;
if (ExitSuccess == null)
{
ExitSuccess = (m, s) => { }
}
;
if (ExitFailure == null)
{
ExitFailure = (m, s) => { }
}
;
uint chunkSize = 131072u;
int chunkSizes = 131072;
if (FlashParts != null)
{
foreach (FlashPart Part in FlashParts)
{
if (Part.Stream == null)
{
throw new ArgumentException("Stream is null");
}
if (!Part.Stream.CanSeek)
{
throw new ArgumentException("Streams must be seekable");
}
if (((Part.StartSector * 0x200) % chunkSize) != 0)
{
throw new ArgumentException("Invalid StartSector alignment");
}
if (CheckSectorAlignment)
{
if ((Part.Stream.Length % chunkSize) != 0)
{
throw new ArgumentException("Invalid Data length");
}
}
}
}
try
{
NokiaFlashModel Model = (NokiaFlashModel)Notifier.CurrentModel;
PhoneInfo Info = Model.ReadPhoneInfo();
if ((Info.SecureFfuSupportedProtocolMask & ((ushort)FfuProtocol.ProtocolSyncV2)) == 0) // Exploit needs protocol v2 -> This check is not conclusive, because old phones also report support for this protocol, although it is really not supported.
{
throw new WPinternalsException("Flash failed!", "Protocols not supported. The phone reports that it does not support the Protocol Sync V2.");
}
if (Info.FlashAppProtocolVersionMajor < 2) // Old phones do not support the hack. These phones have Flash protocol 1.x.
{
throw new WPinternalsException("Flash failed!", "Protocols not supported. The phone reports that Flash App communication protocol is lower than 2. Reported version by the phone: " + Info.FlashAppProtocolVersionMajor + ".");
}
if (Info.UefiSecureBootEnabled)
{
throw new WPinternalsException("Flash failed!", "UEFI Secureboot must be disabled for the Flash V3 exploit to work.");
}
// The payloads must be ordered by the number of locations
//
// FlashApp processes payloads like this:
// - First payloads which are with one location, those can be sent in bulk
// - Then payloads with more than one location, those should not be sent in bulk
//
// If you do not order payloads like this, you will get an error, most likely hash mismatch
//
LumiaV2UnlockBootViewModel.FlashingPayload[] payloads = new LumiaV2UnlockBootViewModel.FlashingPayload[0];
if (FlashParts != null)
{
payloads = LumiaV2UnlockBootViewModel.GetNonOptimizedPayloads(FlashParts, chunkSizes, (uint)(Info.WriteBufferSize / chunkSize), SetWorkingStatus, UpdateWorkingStatus).OrderBy(x => x.TargetLocations.Count()).ToArray();
}
MemoryStream Headerstream1 = new MemoryStream();
// ==============================
// Header 1 start
ImageHeader image = new ImageHeader();
FullFlash ffimage = new FullFlash();
Store simage = new Store();
// Todo make this read the image itself
ffimage.OSVersion = "10.0.11111.0";
ffimage.DevicePlatformId0 = Info.PlatformID;
ffimage.AntiTheftVersion = "1.1";
simage.SectorSize = 512;
simage.MinSectorCount = Info.EmmcSizeInSectors;
//Logging.Log("Generating image manifest...");
string manifest = ManifestIni.BuildUpManifest(ffimage, simage);//, partitions);
byte[] TextBytes = System.Text.Encoding.ASCII.GetBytes(manifest);
image.ManifestLength = (UInt32)TextBytes.Length;
byte[] ImageHeaderBuffer = new byte[0x18];
ByteOperations.WriteUInt32(ImageHeaderBuffer, 0, image.Size);
ByteOperations.WriteAsciiString(ImageHeaderBuffer, 0x04, image.Signature);
ByteOperations.WriteUInt32(ImageHeaderBuffer, 0x10, image.ManifestLength);
ByteOperations.WriteUInt32(ImageHeaderBuffer, 0x14, image.ChunkSize);
Headerstream1.Write(ImageHeaderBuffer, 0, 0x18);
Headerstream1.Write(TextBytes, 0, TextBytes.Length);
RoundUpToChunks(Headerstream1, chunkSize);
// Header 1 stop + round
// ==============================
MemoryStream Headerstream2 = new MemoryStream();
// ==============================
// Header 2 start
StoreHeader store = new StoreHeader();
store.WriteDescriptorCount = (UInt32)payloads.Count();
store.FinalTableIndex = (UInt32)payloads.Count() - store.FinalTableCount;
store.PlatformId = Info.PlatformID;
foreach (LumiaV2UnlockBootViewModel.FlashingPayload payload in payloads)
{
store.WriteDescriptorLength += payload.GetStoreHeaderSize();
}
foreach (LumiaV2UnlockBootViewModel.FlashingPayload payload in payloads)
{
/*if (payload.TargetLocations.First() > PlatEnd)
* break;*/
store.FlashOnlyTableIndex += 1;
}
byte[] StoreHeaderBuffer = new byte[0xF8];
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0, store.UpdateType);
ByteOperations.WriteUInt16(StoreHeaderBuffer, 0x04, store.MajorVersion);
ByteOperations.WriteUInt16(StoreHeaderBuffer, 0x06, store.MinorVersion);
ByteOperations.WriteUInt16(StoreHeaderBuffer, 0x08, store.FullFlashMajorVersion);
ByteOperations.WriteUInt16(StoreHeaderBuffer, 0x0A, store.FullFlashMinorVersion);
ByteOperations.WriteAsciiString(StoreHeaderBuffer, 0x0C, store.PlatformId);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xCC, store.BlockSizeInBytes);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xD0, store.WriteDescriptorCount);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xD4, store.WriteDescriptorLength);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xD8, store.ValidateDescriptorCount);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xDC, store.ValidateDescriptorLength);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xE0, store.InitialTableIndex);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xE4, store.InitialTableCount);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xE8, store.FlashOnlyTableIndex);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xEC, store.FlashOnlyTableCount);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xF0, store.FinalTableIndex);
ByteOperations.WriteUInt32(StoreHeaderBuffer, 0xF4, store.FinalTableCount);
Headerstream2.Write(StoreHeaderBuffer, 0, 0xF8);
byte[] descriptorsBuffer = new byte[store.WriteDescriptorLength];
UInt32 NewWriteDescriptorOffset = 0;
foreach (LumiaV2UnlockBootViewModel.FlashingPayload payload in payloads)
{
ByteOperations.WriteUInt32(descriptorsBuffer, NewWriteDescriptorOffset + 0x00, (UInt32)payload.TargetLocations.Count()); // Location count
ByteOperations.WriteUInt32(descriptorsBuffer, NewWriteDescriptorOffset + 0x04, payload.ChunkCount); // Chunk count
NewWriteDescriptorOffset += 0x08;
foreach (UInt32 location in payload.TargetLocations)
{
ByteOperations.WriteUInt32(descriptorsBuffer, NewWriteDescriptorOffset + 0x00, 0x00000000); // Disk access method (0 = Begin, 2 = End)
ByteOperations.WriteUInt32(descriptorsBuffer, NewWriteDescriptorOffset + 0x04, location); // Chunk index
NewWriteDescriptorOffset += 0x08;
}
}
Headerstream2.Write(descriptorsBuffer, 0, (Int32)store.WriteDescriptorLength);
RoundUpToChunks(Headerstream2, chunkSize);
// Header 2 stop + round
// ==============================
SecurityHeader security = new SecurityHeader();
Headerstream1.Seek(0, SeekOrigin.Begin);
Headerstream2.Seek(0, SeekOrigin.Begin);
security.HashTableSize = 0x20 * (UInt32)((Headerstream1.Length + Headerstream2.Length) / chunkSize);
foreach (LumiaV2UnlockBootViewModel.FlashingPayload payload in payloads)
{
security.HashTableSize += payload.GetSecurityHeaderSize();
}
byte[] HashTable = new byte[security.HashTableSize];
BinaryWriter bw = new BinaryWriter(new MemoryStream(HashTable));
SHA256 crypto = SHA256.Create();
for (int i = 0; i < Headerstream1.Length / chunkSize; i++)
{
byte[] buffer = new byte[chunkSize];
Headerstream1.Read(buffer, 0, (Int32)chunkSize);
byte[] hash = crypto.ComputeHash(buffer);
bw.Write(hash, 0, hash.Length);
}
for (int i = 0; i < Headerstream2.Length / chunkSize; i++)
{
byte[] buffer = new byte[chunkSize];
Headerstream2.Read(buffer, 0, (Int32)chunkSize);
byte[] hash = crypto.ComputeHash(buffer);
bw.Write(hash, 0, hash.Length);
}
foreach (LumiaV2UnlockBootViewModel.FlashingPayload payload in payloads)
{
bw.Write(payload.ChunkHashes[0], 0, payload.ChunkHashes[0].Length);
}
bw.Close();
//Logging.Log("Generating image catalog...");
byte[] catalog = GenerateCatalogFile(HashTable);
security.CatalogSize = (UInt32)catalog.Length;
byte[] SecurityHeaderBuffer = new byte[0x20];
ByteOperations.WriteUInt32(SecurityHeaderBuffer, 0, security.Size);
ByteOperations.WriteAsciiString(SecurityHeaderBuffer, 0x04, security.Signature);
ByteOperations.WriteUInt32(SecurityHeaderBuffer, 0x10, security.ChunkSizeInKb);
ByteOperations.WriteUInt32(SecurityHeaderBuffer, 0x14, security.HashAlgorithm);
ByteOperations.WriteUInt32(SecurityHeaderBuffer, 0x18, security.CatalogSize);
ByteOperations.WriteUInt32(SecurityHeaderBuffer, 0x1C, security.HashTableSize);
MemoryStream retstream = new MemoryStream();
retstream.Write(SecurityHeaderBuffer, 0, 0x20);
retstream.Write(catalog, 0, (Int32)security.CatalogSize);
retstream.Write(HashTable, 0, (Int32)security.HashTableSize);
RoundUpToChunks(retstream, chunkSize);
Headerstream1.Seek(0, SeekOrigin.Begin);
Headerstream2.Seek(0, SeekOrigin.Begin);
byte[] buff = new byte[Headerstream1.Length];
Headerstream1.Read(buff, 0, (Int32)Headerstream1.Length);
Headerstream1.Close();
retstream.Write(buff, 0, buff.Length);
buff = new byte[Headerstream2.Length];
Headerstream2.Read(buff, 0, (Int32)Headerstream2.Length);
Headerstream2.Close();
retstream.Write(buff, 0, buff.Length);
// --------
// Go back to the beginning
retstream.Seek(0, SeekOrigin.Begin);
byte[] FfuHeader = new byte[retstream.Length];
await retstream.ReadAsync(FfuHeader, 0, (int)retstream.Length);
retstream.Close();
byte Options = 0;
if (!Info.IsBootloaderSecure)
{
Options = (byte)((FlashOptions)Options | FlashOptions.SkipSignatureCheck);
}
LogFile.Log("Flash in progress...", LogType.ConsoleOnly);
SetWorkingStatus("Flashing...", null, (UInt64?)payloads.Count(), Status: WPinternalsStatus.Flashing);
Model.SendFfuHeaderV1(FfuHeader, Options);
UInt64 counter = 0;
int numberOfPayloadsToSendAtOnce = (int)Math.Round((double)Info.WriteBufferSize / chunkSize);
byte[] payloadBuffer;
for (int i = 0; i < payloads.Count(); i += numberOfPayloadsToSendAtOnce)
{
if (i + numberOfPayloadsToSendAtOnce - 1 >= payloads.Count())
{
numberOfPayloadsToSendAtOnce = payloads.Count() - i;
}
payloadBuffer = new byte[numberOfPayloadsToSendAtOnce * chunkSizes];
string ProgressText = "Flashing resources";
for (int j = 0; j < numberOfPayloadsToSendAtOnce; j++)
{
LumiaV2UnlockBootViewModel.FlashingPayload payload = payloads[i + j];
UInt32 StreamIndex = payload.StreamIndexes.First();
FlashPart flashPart = FlashParts[(int)StreamIndex];
if (flashPart.ProgressText != null)
{
ProgressText = flashPart.ProgressText;
}
Stream Stream = flashPart.Stream;
Stream.Seek(payload.StreamLocations.First(), SeekOrigin.Begin);
Stream.Read(payloadBuffer, j * chunkSizes, chunkSizes);
counter++;
}
Model.SendFfuPayloadV2(payloadBuffer, int.Parse((counter * 100 / (ulong)payloads.Count()).ToString()));
UpdateWorkingStatus(ProgressText, null, counter, WPinternalsStatus.Flashing);
}
Model.ResetPhone();
await Notifier.WaitForRemoval();
ExitSuccess("Flash succeeded!", null);
}
catch
{
throw new WPinternalsException("Custom flash failed");
}
}
}
}
public bool ConnectToProgrammerInTestMode()
{
// Behaviour of old firehose:
// Takes about 20 ms to be started.
// Then PC has to start talking to the phone.
// Behaviour of new firehose:
// After 2000 ms the firehose starts talking to the PC
//
// For the duration of 2.5 seconds we will send Hello packages
// And also wait for incoming messages
// An incoming message can be a response to our outgoing Hello packet (read incoming until "response value")
// Or it can be an incoming Hello-packet from the programmer (always 2 packets, starting with "Chip serial num")
// Sending the hello-packet can succeed immediately, or it can timeout.
// When sending succeeds, an answer should be incoming immediately to complete the handshake.
// When an incoming Hello was received, the phone still expects to receive another Hello.
byte[] HelloPacketFromPcToProgrammer = new byte[0x20C];
ByteOperations.WriteUInt32(HelloPacketFromPcToProgrammer, 0, 0x57503730);
ByteOperations.WriteUInt32(HelloPacketFromPcToProgrammer, 0x28, 0x57503730);
ByteOperations.WriteUInt32(HelloPacketFromPcToProgrammer, 0x208, 0x57503730);
ByteOperations.WriteUInt16(HelloPacketFromPcToProgrammer, 0x48, 0x4445);
int HelloSendCount = 0;
bool HandshakeCompleted = false;
string Incoming;
do
{
Serial.SetTimeOut(200);
HelloSendCount++;
try
{
LogFile.Log("Send Hello to programmer (" + HelloSendCount.ToString() + ")", LogType.FileOnly);
Serial.SendData(HelloPacketFromPcToProgrammer);
LogFile.Log("Hello packet accepted", LogType.FileOnly);
}
catch
{
LogFile.Log("Hello packet not accepted", LogType.FileOnly);
}
try
{
Serial.SetTimeOut(500);
Incoming = System.Text.Encoding.ASCII.GetString(Serial.GetResponse(null));
LogFile.Log("In: " + Incoming, LogType.FileOnly);
Serial.SetTimeOut(200);
if (Incoming.Contains("Chip serial num"))
{
Incoming = System.Text.Encoding.ASCII.GetString(Serial.GetResponse(null));
LogFile.Log("In: " + Incoming, LogType.FileOnly);
LogFile.Log("Incoming Hello-packets received", LogType.FileOnly);
}
while (Incoming.IndexOf("response value") < 0)
{
Incoming = System.Text.Encoding.ASCII.GetString(Serial.GetResponse(null));
LogFile.Log("In: " + Incoming, LogType.FileOnly);
}
;
LogFile.Log("Incoming Hello-response received", LogType.FileOnly);
HandshakeCompleted = true;
}
catch { }
}while (!HandshakeCompleted && (HelloSendCount < 6));
if (HandshakeCompleted)
{
LogFile.Log("Handshake completed with programmer in testmode", LogType.FileOnly);
}
else
{
LogFile.Log("Handshake with programmer failed", LogType.FileOnly);
}
return(HandshakeCompleted);
}
