Exemplo n.º 1
0
        public bool Load()
        {
            _io.Stream.Position = 0;
            Header = _io.Reader.ReadStruct <XvdHeader>();

            CikIsDecrypted = !IsEncrypted;

            CalculateDataOffsets();

            if (DataOffset >= (ulong)_io.Stream.Length)
            {
                return(false);
            }

            if (Header.XvcDataLength > 0 && IsXvcFile)
            {
                _io.Stream.Position = (long)DataOffset;

                XvcInfo = _io.Reader.ReadStruct <XvcInfo>();

                if (XvcInfo.Version == 1)
                {
                    RegionHeaders = new List <XvcRegionHeader>();
                    for (int i = 0; i < XvcInfo.RegionCount; i++)
                    {
                        RegionHeaders.Add(_io.Reader.ReadStruct <XvcRegionHeader>());
                    }

                    UpdateSegments = new List <XvcUpdateSegmentInfo>();
                    for (int i = 0; i < XvcInfo.UpdateSegmentCount; i++)
                    {
                        UpdateSegments.Add(_io.Reader.ReadStruct <XvcUpdateSegmentInfo>());
                    }
                }
            }

            DataHashTreeValid = true;
            HashTreeValid     = true;

            if (IsDataIntegrityEnabled)
            {
                if (!DisableDataHashChecking)
                {
                    int[] invalidBlocks = VerifyDataHashTree();
                    DataHashTreeValid = invalidBlocks.Length <= 0;
                }
                HashTreeValid = VerifyHashTree();
            }

            XvcDataHashValid = VerifyXvcHash();
            return(true);
        }
Exemplo n.º 2
0
        public bool Load()
        {
            _io.Stream.Position = 0;
            Header = _io.Reader.ReadStruct<XvdHeader>();

            CikIsDecrypted = !IsEncrypted;

            CalculateDataOffsets();

            if (DataOffset >= (ulong)_io.Stream.Length)
                return false;

            if (Header.XvcDataLength > 0 && IsXvcFile)
            {
                _io.Stream.Position = (long)DataOffset;

                XvcInfo = _io.Reader.ReadStruct<XvcInfo>();

                if (XvcInfo.Version == 1)
                {
                    RegionHeaders = new List<XvcRegionHeader>();
                    for (int i = 0; i < XvcInfo.RegionCount; i++)
                        RegionHeaders.Add(_io.Reader.ReadStruct<XvcRegionHeader>());

                    UpdateSegments = new List<XvcUpdateSegmentInfo>();
                    for (int i = 0; i < XvcInfo.UpdateSegmentCount; i++)
                        UpdateSegments.Add(_io.Reader.ReadStruct<XvcUpdateSegmentInfo>());
                }
            }

            DataHashTreeValid = true;
            HashTreeValid = true;

            if (IsDataIntegrityEnabled)
            {
                if (!DisableDataHashChecking)
                {
                    int[] invalidBlocks = VerifyDataHashTree();
                    DataHashTreeValid = invalidBlocks.Length <= 0;
                }
                HashTreeValid = VerifyHashTree();
            }

            XvcDataHashValid = VerifyXvcHash();
            return true;
        }
Exemplo n.º 3
0
        public bool Load()
        {
            _io.Stream.Position = 0;
            Header = _io.Reader.ReadStruct <XvdHeader>();

            CikIsDecrypted = !IsEncrypted;

            if (DriveDataOffset >= (ulong)_io.Stream.Length)
            {
                return(false);
            }

            if (Header.XvcDataLength > 0 && IsXvcFile)
            {
                _io.Stream.Position = (long)XvcInfoOffset;

                XvcInfo = _io.Reader.ReadStruct <XvcInfo>();

                if (XvcInfo.Version >= 1)
                {
                    RegionHeaders = new List <XvcRegionHeader>();
                    for (int i = 0; i < XvcInfo.RegionCount; i++)
                    {
                        RegionHeaders.Add(_io.Reader.ReadStruct <XvcRegionHeader>());
                    }

                    UpdateSegments = new List <XvcUpdateSegment>();
                    for (int i = 0; i < XvcInfo.UpdateSegmentCount; i++)
                    {
                        UpdateSegments.Add(_io.Reader.ReadStruct <XvcUpdateSegment>());
                    }

                    if (XvcInfo.Version >= 2) // RegionSpecifiers / RegionPresenseInfo only seems to be used on XvcInfo v2
                    {
                        RegionSpecifiers = new List <XvcRegionSpecifier>();
                        for (int i = 0; i < XvcInfo.RegionSpecifierCount; i++)
                        {
                            RegionSpecifiers.Add(_io.Reader.ReadStruct <XvcRegionSpecifier>());
                        }

                        if (Header.MutableDataPageCount > 0)
                        {
                            RegionPresenceInfo  = new List <XvcRegionPresenceInfo>();
                            _io.Stream.Position = (long)MduOffset;
                            for (int i = 0; i < XvcInfo.RegionCount; i++)
                            {
                                RegionPresenceInfo.Add((XvcRegionPresenceInfo)_io.Reader.ReadByte());
                            }
                        }
                    }
                }
            }

            DataHashTreeValid = true;
            HashTreeValid     = true;

            if (IsDataIntegrityEnabled)
            {
                if (!DisableDataHashChecking)
                {
                    ulong[] invalidBlocks = VerifyDataHashTree();
                    DataHashTreeValid = invalidBlocks.Length <= 0;
                }
                HashTreeValid = VerifyHashTree();
            }

            XvcDataHashValid = VerifyXvcHash();
            StaticDataLength = CalculateStaticDataLength();
            Filesystem       = new XvdFilesystem(this);
            return(true);
        }