private void GenBootCatalog(IsoFile f) { BootCatalog = generator.Index / LogicalBlockSize; // write validation entry first... see El Torito section 2.1 var ve = new FieldValidator(generator); ve.Byte(1, 1); // Header ID, must be 0x01 ve.Byte(0, 2); // 0 == x86 - TODO FIXME: 1 == PowerPC, 2 == Mac, see El Torito figure 2 ve.DupByte(0, 3, 4); // Reserved ve.DupByte(0, 5, 0x1C); // Manufacturer/Developer of CD-ROM, see El Torito figure 2 ve.ShortLSB(0x55AA, 0x1D, 0x1E); // checksum - TODO FIXME - allow custom Manufacturer string - calculate checksum dynamically ve.Byte(0x55, 0x1F); // 1st Key Byte ve.Byte(0xAA, 0x20); // 2nd Key Byte // initial/default entry... see El Torito section 2.2 and figure 3 var ide = new FieldValidator(generator); ide.Byte(0x88, 1); // 0x88 = bootable, 0x00 = not bootable // TODO FIXME - this is extremely hackish... fix me... ide.Byte(0, 2); // no emulation /*if ( f.fileInfo.Length <= 1182720 ) ide.Byte(1, 2); // 1.2 meg diskette else if ( f.fileInfo.Length <= 1440 * 1024 ) ide.Byte(2,2); // 1.44 meg diskette else if ( f.fileInfo.Length <= 2880 * 1024 ) ide.Byte(3,2); // 2.88 meg diskette else ide.Byte(4,2);*/ // Hard Disk ( drive 80 ) ide.ShortLSB(0, 3, 4); // Load Segment - 0 == default of 0x7C0 ide.Byte(0, 5); // System Type, according to El Torito figure 3 this MUST be a copy of the "System Type" from the boot image. In practice this appears to not be the case. ide.Byte(0, 6); // Unused, must be 0 if (bootLoadSize == 0) bootLoadSize = (short)((f.fileInfo.Length - 1) / 0x200 + 1); ide.ShortLSB(bootLoadSize, 7, 8); // Sector Count ide.IntLSB(boot.DataBlock, 9, 12); // Logical Block of boot image ide.Zero(13, 32); // unused generator.FinishBlock(); }
private void GenPrimaryVolumeDescriptor() // ( 8.4 ) { PrimaryVolumeDescriptor = generator.Index / LogicalBlockSize; var pvd = new FieldValidator(generator); pvd.Byte(1, 1); // Volume Descriptor Type ( 8.4.1 ) pvd.AString("CD001", 2, 6); // Standard Identifier ( 8.4.2 ) pvd.Byte(1, 7); // Volume Descriptor Version ( 8.4.3 ) pvd.Zero(8, 8); // Unused Field ( 8.4.4 ) pvd.AString("?", 9, 40); // System Identifier ( 8.4.5 ) pvd.DString(volumeLabel, 41, 72); // Volume Identifier ( 8.4.6 ) pvd.Zero(73, 80); // Unused Field ( 8.4.7 ) pvd.IntLSBMSB((TotalSize + LogicalBlockSize - 1) / LogicalBlockSize, 81, 88); // Volume Space Size ( 8.4.8 ) pvd.Zero(89, 120); // Unused Field ( 8.4.9 ) pvd.ShortLSBMSB(1, 121, 124); // Volume Set Size ( 8.4.10 ) pvd.ShortLSBMSB(1, 125, 128); // Volume Sequence Number ( 8.4.11 ) pvd.ShortLSBMSB(LogicalBlockSize, 129, 132); // Logical Block Size ( 8.4.12 ) pvd.IntLSBMSB(PathTableSize, 133, 140); // Path Table Size ( 8.4.13 ) pvd.IntLSB(LPathTable, 141, 144); // L Path Table ( 8.4.14 ) pvd.IntLSB(0, 145, 148); // Optional L Path Table ( 8.4.15 ) pvd.IntMSB(MPathTable, 149, 152); // M Path Table ( 8.4.16 ) pvd.IntMSB(0, 153, 156); // Optional M Path Table ( 8.4.17 ) pvd.BeginField(157); DirectoryRecord(".", isoRoot, 1); // Directory Record for Root Directory ( 8.4.18 ) pvd.EndField(190); pvd.DupByte(0x20, 191, 318); // Volume Set Identifier ( 8.4.19 ) pvd.DupByte(0x20, 319, 446); // Publisher Identifier ( 8.4.20 ) pvd.DupByte(0x20, 447, 574); // Data Preparer ( 8.4.21 ) pvd.DupByte(0x20, 575, 702); // Application Identifier ( 8.4.22 ) pvd.DupByte(0x20, 703, 739); // Copyright File Identifier ( 8.4.23 ) pvd.DupByte(0x20, 740, 776); // Abstract File Identifier ( 8.4.24 ) pvd.DupByte(0x20, 777, 813); // Bibliographic File Identifier ( 8.4.25 ) System.DateTime now = System.DateTime.Now; pvd.AnsiDateTime(now, 814, 830); // Volume Creation Date and Time ( 8.4.26 ) pvd.AnsiDateTime(now, 831, 847); // Volume Modification Date and Time ( 8.4.27 ) pvd.Zero(848, 864); // Volume Expiration Date and Time ( 8.4.28 ) pvd.Zero(865, 881); // Volume Effective Date and Time ( 8.4.29 ) pvd.Byte(1, 882); // File Structure Version ( 8.4.30 ) pvd.Zero(883, 883); // Reserved ( 8.4.31 ) pvd.Zero(884, 1395); // Application Use ( 8.4.32 ) pvd.Zero(1396, 2048); // Reserved for Future Standardization ( 8.4.33 ) }