comparison ffstools/README @ 250:3d88461d8284

beginning of TIFFS IVA documentation
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Fri, 31 Jan 2014 07:37:39 +0000
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1 You are looking at the source for the TIFFS In Vitro Analyzer utility. You may
2 have downloaded it either as a separate package or as part of the larger
3 freecalypso-sw suite.
4
5 See TIFFS-Overview (in ../doc if you are working with the full freecalypso-sw
6 source tree) for a general description of what TIFFS is and why it matters.
7
8 The utility contained in the present package runs on a general purpose GNU/Linux
9 (or other Unix) host and enables "in vitro" examination of Flash File System
10 images read out of TI-based GSM devices. Using this utility, you can list the
11 directory and file content of an FFS image, cat any individual file in the FFS,
12 or extract the complete FFS content into your regular Unix file system. Some
13 "forensic" operations are also supported: by listing the inode array, one can
14 deduce the order in which the present FFS content got created, and see what
15 files have been overwritten or deleted in the span of still-visible history.
16 One can then cat the old byte content of those overwritten or deleted files,
17 if those data chunks are still in the FFS image (i.e., if the flash sector in
18 question has not been reclaimed yet).
19
20 Compilation and installation are straightforward: run 'make' to compile the
21 source; you should get 3 executable binaries named tiffs, mokoffs and pirffs;
22 then run 'make install' as root to install them in /usr/local/bin. The binary
23 named tiffs is the main program; mokoffs and pirffs are wrappers that simplify
24 the most common current use cases.
25
26 To install somewhere other than /usr/local/bin, edit the INSTBIN= setting in
27 the subdirectory Makefiles. You will also need to edit
28 tiffs-wrappers/installpath.c accordingly, as the mokoffs and pirffs wrappers
29 are designed to exec tiffs by its absolute installed pathname.
30
31 See Usage for the usage instructions.