Created
November 16, 2019 20:30
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Fujifillm
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| #! python2 | |
| #------------------------------------------------------------------------------- | |
| # Name: dump_hdr.py | |
| # Purpose: dump header of a FujiFilm FinePix firmware update | |
| # see https://reverseengineering.stackexchange.com/questions/22549/identifying-rom-segment-in-unknown-firmware-update-file | |
| # Author: Igor Skochinsky | |
| # | |
| # Created: 16-11-2019 | |
| # Copyright: (c) Igor Skochinsky 2019 | |
| # Licence: MIT | |
| #------------------------------------------------------------------------------- | |
| import sys | |
| import struct | |
| f = open("FPUPDATE.DAT", "rb") | |
| tup = struct.unpack("<IHBxII", f.read(0x10)) | |
| #print tup | |
| sig, unk4, nb,plfm, unkC = tup | |
| if sig != 0x52494852: #"RIHR" | |
| print("bad header!") | |
| sys.exit(1) | |
| print "unk4: %08X" % unk4 | |
| print "blocks: %d" % nb | |
| print "platform: %08X" % plfm | |
| print "unkC: %08X" % unkC | |
| for i in range(nb): | |
| typ, blkoff, blksize, unk8, cksum = struct.unpack("<HxxHHII", f.read(0x10)) | |
| print "block %d type: %d" % (i,typ) | |
| print " offset: %x (%x)" % (blkoff, blkoff<<9) | |
| print " size: %x (%x)" % (blksize, blksize<<9) | |
| print " unk8: %08X" % unk8 | |
| print " checksum: %08X" % cksum | |
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| unk4: 00001001 | |
| blocks: 7 | |
| platform: 00050600 | |
| unkC: 01A40001 | |
| block 0 type: 1 | |
| offset: 1 (200) | |
| size: 14dc (29b800) | |
| unk8: 00048000 | |
| checksum: A1AA045A | |
| block 1 type: 1 | |
| offset: 14dd (29ba00) | |
| size: 731 (e6200) | |
| unk8: 002E8000 | |
| checksum: 917C608A | |
| block 2 type: 0 | |
| offset: 1c0e (381c00) | |
| size: 54c (a9800) | |
| unk8: 00430000 | |
| checksum: EA1137CD | |
| block 3 type: 1 | |
| offset: 215a (42b400) | |
| size: 21 (4200) | |
| unk8: 004DA000 | |
| checksum: 8AE264F9 | |
| block 4 type: 0 | |
| offset: 217b (42f600) | |
| size: 2a6 (54c00) | |
| unk8: 004DA000 | |
| checksum: 8606D33F | |
| block 5 type: 0 | |
| offset: 2422 (484400) | |
| size: 34 (6800) | |
| unk8: 004DA000 | |
| checksum: 802A3C3B | |
| block 6 type: 2 | |
| offset: b420 (1684000) | |
| size: 4 (800) | |
| unk8: 00000000 | |
| checksum: 00000000 |
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If you follow the link, you'll see it mentions FinePix S1800.