ODL Files

The Format

ODL_header

    struct {
        char       signature[8]; // EBFGONED
        uint32    odl_version; // value seen = 2 or 3
        uint32    unknown2;
        uint64    unknown3; // value seen = 0
        uint32    unknown4; // value seen = 1
        char       one_drive_version[0x40];
        char       os_version[0x40];
        byte       reserved[0x64];
    } Odl_header;

Data_block

    struct {
        uint64    signature; // CCDDEEFF 0000000
        uint64    timestamp; // Unix Millisecond time
        uint32    unk1;
        uint32    unk2;
        byte       unk3_guid[16];
        uint32    unk4;
        uint32    unk5; // mostly 1
        uint32    data_len;
        uint32    unk6; // mostly 0
        byte       data[data_len];
    } Data_block_v2;

                          struct {
                              uint64    signature; // CCDDEEFF 0000000
                              uint64    timestamp; // Unix Millisecond time
                              uint32    unk1;
                              uint32    unk2;
                              uint32    data_len;
                              byte       unk3;
                              byte       data[data_len];
                          } Data_block_v3;

Data

    struct {
        uint32    code_file_name_len;
        char       code_file_name[code_file_name_len];
        uint32    flags;
        uint32    code_function_name_len;
        char       code_function_name[code_function_name_len];
        byte       parameters[];
    } Data_v2;

    struct {
        byte       unk1_guid[16];
        uint32    unk2;
        uint32    unk3;
        uint32    code_file_name_len;
        char       code_file_name[code_file_name_len];
        uint32    flags;
        uint32    code_function_name_len;
        char       code_function_name[code_function_name_len];
        byte       parameters[];
    } Data_3;