added some CPE tests
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parent
53ed1d1e83
commit
02a895521c
4 changed files with 44 additions and 264 deletions
130
motolol/cp/cp.go
130
motolol/cp/cp.go
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@ -72,133 +72,3 @@ func (r *CPReader) Test() (err error) {
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}
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return nil
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}
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/*
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func (r *CPEReader) readFileMetadata() (GMAFileMetadata, error) {
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metadata := GMAFileMetadata{}
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// Read the file name
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fileName, err := r.gmaStreamReader.ReadString(byte(0))
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if err != nil {
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return metadata, err
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}
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//fmt.Printf("bufio ReadString(byte(0)) = len(%d) data=%x\n", len(fileName), fileName)
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fileName = fileName[:len(fileName)-1] // remove nullbyte that causes go string fuckyness
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r.cursorOffset += uint32(len(fileName) + 1) // Add name length + null byte
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metadata.FileName = fileName
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// Read the file size
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fileSizeBytes := make([]byte, 8)
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_, err = io.ReadFull(r.gmaStreamReader, fileSizeBytes)
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if err != nil {
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return metadata, err
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}
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r.cursorOffset += 8
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//fmt.Printf("bufio Read([]byte(4)]) fileSizeBytes = bytesRead(%d) data=%x\n", bytesRead, fileSizeBytes)
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metadata.FileSize = int64(binary.LittleEndian.Uint64(fileSizeBytes))
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// Read the file crc
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crcBytes := make([]byte, 4)
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_, err = io.ReadFull(r.gmaStreamReader, crcBytes)
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if err != nil {
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return metadata, err
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}
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r.cursorOffset += 4
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//fmt.Printf("bufio Read([]byte(4)]) crcBytes = bytesRead(%d) data=%x\n", bytesRead, crcBytes)
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metadata.CRC = binary.LittleEndian.Uint32(crcBytes)
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// Read the next type
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nextTypeBytes := make([]byte, 4)
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_, err = io.ReadFull(r.gmaStreamReader, nextTypeBytes)
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if err != nil {
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return metadata, err
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}
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r.cursorOffset += 4
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metadata.NextType = binary.LittleEndian.Uint32(nextTypeBytes)
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//fmt.Printf("bufio Read([]byte(4)]) nextTypeBytes = bytesRead(%d) data=%x\n", bytesRead, nextTypeBytes)
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return metadata, nil
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}
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func (r *CPEReader) ReadAddonCRC(lastOffset int64) (crc uint32, err error) {
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limitReader := io.NewSectionReader(r.FileHandle, int64(r.cursorOffset)+lastOffset, int64(4))
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crcBytes := make([]byte, 4)
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_, err = limitReader.Read(crcBytes)
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if err != nil {
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return 0, err
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}
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r.cursorOffset += 4
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CRC := binary.LittleEndian.Uint32(crcBytes)
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return CRC, nil
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}
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func (r *CPEReader) ReadFiles() (firstType int32, files []GMAFileMetadata, err error) {
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// read nType 4byte
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firstTypeBytes := make([]byte, 4)
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_, err = r.gmaStreamReader.Read(firstTypeBytes)
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if err != nil {
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return 0, files, err
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}
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r.cursorOffset += 4
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firstType = int32(binary.LittleEndian.Uint32(firstTypeBytes))
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if firstType == 0 {
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return 0, files, nil
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}
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fileOffset := int64(0)
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fileNumber := int32(1)
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for {
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fileMeta, err := r.readFileMetadata()
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if err != nil {
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if err == io.EOF {
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break
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}
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return firstType, files, err
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}
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fileMeta.FileNumber = fileNumber
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fileMeta.Offset = fileOffset
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//fmt.Printf("%s CRC: %d Offset: %d Size: %d\n", fileMeta.FileName, fileMeta.CRC, fileMeta.Offset, fileMeta.FileSize)
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//fmt.Printf("[% x]\n", fileMeta.FileName)
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files = append(files, fileMeta)
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fileOffset += fileMeta.FileSize
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fileNumber++
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if fileMeta.NextType == 0 {
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break
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}
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}
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return firstType, files, nil
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}
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func (r *CPEReader) GetOffset() (offset uint32) {
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return r.cursorOffset
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}
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func (r *CPEReader) ExtractFileTo(fileMeta GMAFileMetadata, writer io.Writer) (extractMeta GMAExtractionMeta, err error) {
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extractMeta.OriginalMeta = fileMeta
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// Seek to the specified offset in the reader
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limitReader := io.NewSectionReader(r.FileHandle, int64(r.cursorOffset)+fileMeta.Offset, int64(fileMeta.FileSize))
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// Copy the specified length of data from the reader to the output file
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buf := bytes.NewBuffer(nil)
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_, err = io.CopyN(buf, limitReader, int64(fileMeta.FileSize))
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if err != nil {
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return extractMeta, err
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}
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shaHasher := sha256.New()
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extractMeta.ExtractedCRC = crc32.Checksum(buf.Bytes(), crc32.MakeTable(crc32.IEEE))
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shaHasher.Write(buf.Bytes())
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extractMeta.ExtractedSHA256 = fmt.Sprintf("%x", shaHasher.Sum(nil))
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buf.WriteTo(writer)
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return extractMeta, nil
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}
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func (r *CPEReader) GetSHA256() (hash string, err error) {
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shaHasher := sha256.New()
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if _, err := io.Copy(shaHasher, r.FileHandle); err != nil {
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return "", err
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}
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return fmt.Sprintf("%x", shaHasher.Sum(nil)), nil
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}
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*/
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@ -3,6 +3,6 @@ package cp
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type Table struct {
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}
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func NewTable(fileName string) (_ CPReader, err error) {
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return CPReader{}.NewReader(fileName)
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}
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// func NewTable(fileName string) (_ CPReader, err error) {
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// return CPReader{}.NewReader(fileName)
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// }
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@ -116,136 +116,5 @@ func (r *CPEReader) ReadData() (err error) {
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return err
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}
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r.Metadata.Segments[nextSegment.Name] = nextSegment
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//fmt.Printf("Segment Found: %s (%d bytes)\n", nextSegment.Name, nextSegment.Size)
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}
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}
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/*
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func (r *CPEReader) readFileMetadata() (GMAFileMetadata, error) {
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metadata := GMAFileMetadata{}
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// Read the file name
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fileName, err := r.gmaStreamReader.ReadString(byte(0))
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if err != nil {
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return metadata, err
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}
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//fmt.Printf("bufio ReadString(byte(0)) = len(%d) data=%x\n", len(fileName), fileName)
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fileName = fileName[:len(fileName)-1] // remove nullbyte that causes go string fuckyness
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r.cursorOffset += uint32(len(fileName) + 1) // Add name length + null byte
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metadata.FileName = fileName
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// Read the file size
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fileSizeBytes := make([]byte, 8)
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_, err = io.ReadFull(r.gmaStreamReader, fileSizeBytes)
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if err != nil {
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return metadata, err
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}
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r.cursorOffset += 8
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//fmt.Printf("bufio Read([]byte(4)]) fileSizeBytes = bytesRead(%d) data=%x\n", bytesRead, fileSizeBytes)
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metadata.FileSize = int64(binary.LittleEndian.Uint64(fileSizeBytes))
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// Read the file crc
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crcBytes := make([]byte, 4)
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_, err = io.ReadFull(r.gmaStreamReader, crcBytes)
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if err != nil {
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return metadata, err
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}
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r.cursorOffset += 4
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//fmt.Printf("bufio Read([]byte(4)]) crcBytes = bytesRead(%d) data=%x\n", bytesRead, crcBytes)
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metadata.CRC = binary.LittleEndian.Uint32(crcBytes)
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// Read the next type
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nextTypeBytes := make([]byte, 4)
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_, err = io.ReadFull(r.gmaStreamReader, nextTypeBytes)
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if err != nil {
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return metadata, err
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}
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r.cursorOffset += 4
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metadata.NextType = binary.LittleEndian.Uint32(nextTypeBytes)
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//fmt.Printf("bufio Read([]byte(4)]) nextTypeBytes = bytesRead(%d) data=%x\n", bytesRead, nextTypeBytes)
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return metadata, nil
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}
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func (r *CPEReader) ReadAddonCRC(lastOffset int64) (crc uint32, err error) {
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limitReader := io.NewSectionReader(r.FileHandle, int64(r.cursorOffset)+lastOffset, int64(4))
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crcBytes := make([]byte, 4)
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_, err = limitReader.Read(crcBytes)
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if err != nil {
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return 0, err
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}
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r.cursorOffset += 4
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CRC := binary.LittleEndian.Uint32(crcBytes)
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return CRC, nil
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}
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func (r *CPEReader) ReadFiles() (firstType int32, files []GMAFileMetadata, err error) {
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// read nType 4byte
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firstTypeBytes := make([]byte, 4)
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_, err = r.gmaStreamReader.Read(firstTypeBytes)
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if err != nil {
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return 0, files, err
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}
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r.cursorOffset += 4
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firstType = int32(binary.LittleEndian.Uint32(firstTypeBytes))
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if firstType == 0 {
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return 0, files, nil
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}
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fileOffset := int64(0)
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fileNumber := int32(1)
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for {
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fileMeta, err := r.readFileMetadata()
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if err != nil {
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if err == io.EOF {
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break
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}
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return firstType, files, err
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}
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fileMeta.FileNumber = fileNumber
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fileMeta.Offset = fileOffset
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//fmt.Printf("%s CRC: %d Offset: %d Size: %d\n", fileMeta.FileName, fileMeta.CRC, fileMeta.Offset, fileMeta.FileSize)
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//fmt.Printf("[% x]\n", fileMeta.FileName)
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files = append(files, fileMeta)
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fileOffset += fileMeta.FileSize
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fileNumber++
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if fileMeta.NextType == 0 {
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break
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}
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}
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return firstType, files, nil
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}
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func (r *CPEReader) GetOffset() (offset uint32) {
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return r.cursorOffset
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}
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func (r *CPEReader) ExtractFileTo(fileMeta GMAFileMetadata, writer io.Writer) (extractMeta GMAExtractionMeta, err error) {
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extractMeta.OriginalMeta = fileMeta
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// Seek to the specified offset in the reader
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limitReader := io.NewSectionReader(r.FileHandle, int64(r.cursorOffset)+fileMeta.Offset, int64(fileMeta.FileSize))
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// Copy the specified length of data from the reader to the output file
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buf := bytes.NewBuffer(nil)
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_, err = io.CopyN(buf, limitReader, int64(fileMeta.FileSize))
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if err != nil {
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return extractMeta, err
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}
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shaHasher := sha256.New()
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extractMeta.ExtractedCRC = crc32.Checksum(buf.Bytes(), crc32.MakeTable(crc32.IEEE))
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shaHasher.Write(buf.Bytes())
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extractMeta.ExtractedSHA256 = fmt.Sprintf("%x", shaHasher.Sum(nil))
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buf.WriteTo(writer)
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return extractMeta, nil
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}
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func (r *CPEReader) GetSHA256() (hash string, err error) {
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shaHasher := sha256.New()
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if _, err := io.Copy(shaHasher, r.FileHandle); err != nil {
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return "", err
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}
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return fmt.Sprintf("%x", shaHasher.Sum(nil)), nil
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}
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*/
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41
motolol/motolol.go
Normal file
41
motolol/motolol.go
Normal file
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@ -0,0 +1,41 @@
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package main
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import (
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"fmt"
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"git.cheetah.cat/cheetah/moto-flash-data/motolol/cpe"
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)
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func main() {
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//, err := cpe.NewReader("../testdata/20230825-2021-dmosck-SN[121TUL1221]_TEI[00016C9C2238810]_ISSI[133705]_CP[1020]_SW[R35.010.9426]_USB1.cpe")
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test, err := cpe.NewReader("../testdata/20231023-Transceiver-pei115200_SN[938TSG4891]_TEI[000148231294920]_ISSI[133706]_CP[1511]_SW[R27.000.9840]_USB2.cpe")
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if err != nil {
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panic(err)
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}
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defer test.Close()
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err = test.ValidateHeader()
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if err != nil {
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panic(err)
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}
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err = test.ReadData()
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if err != nil {
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panic(err)
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}
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for _, seg := range test.Metadata.Segments {
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fmt.Printf("Segment Found: %s (%d bytes)\n", seg.Name, seg.Size)
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}
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fmt.Println("all alright")
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// cp, err := cp.NewReader("./output.cpe.test")
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// if err != nil {
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// panic(err)
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// }
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// defer cp.Close()
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// err = cp.Test()
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// if err != nil {
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// panic(err)
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// }
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}
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