mapfs

This is a mapping file system for Linux, using Python as its base.

Image specification:

image {
    image.mfhd
    image.chain
    journal+image
  }

MFHD specification:

Encoding: data (bytearray) -> lzma -> zlib
Decoding: zlib -> lzma -> data (bytes-string) -> data (bytearray)

Chain specification:

[
  ("file_name", 0, 2) # (file_name, start_off, end_off)
  ...
]

file_name: The file name you refer
0: Start offset
2: End offset

Future roadmap

Feature	mfs	mfs2	mfs2.1	mfs2.2/mfs2.3	mfs2.4	mfs3 (planned)
Journaling		X	X	X (compressed)	X	X
Compression	zlib	lzma	lzma	lzma+zlib	lzma+zlib	lzma2 (?)
Files	X	X	X	X	X	X
Folders		X	+ (empty folder support)	+	+	+
Error Checking	zlib exceptions	checkJournal	checkJournal	checkJournal (v2)	checkJournal (v2)	checkJournal (v2)
Mounting	extract-only	X	X	X	X	X
Cross-Compatibility	Windows, Linux	Linux	Linux	Linux	Linux	Linux
Metadata					~ (creation date)	X
API						X
Files Spec	.chain, .mfhd	block/fs (eg. block/example_drive)	block/fs	block/fs	block/fs	block/fs
Encryption				(preliminary for 2.4)	experimental (file only)	mfs3 w/ EFSM (encrypting FS mode)

Why linux only?

Mainly personal preferences.