The cool now takes the database as a hint and will not complain if the device
returns less data. The tool also supports user provided size and raw node numbers
that are not in the database (advanced usage).
Change-Id: I8cec536718d7eff01c7803bea648d6122b82377a
We don't know the encryption method, the KAS is completely different but it
might be useful to record it anyway for future purposes. MID extracted from
device, Japanese NW-A35.
Change-Id: I4c4bb5b063da99003b5c316061d8c490b77428a4
It is Android based and despite the fact that Sony wrote an NVP driver for it,
experiments suggest it is unused because it returns ff all the time...
Change-Id: I37750b659e341b21bed5ebaccf60f9f5fe569f64
Don't use colors since the terminal doesn't support it. Also packing is broken
on MinGW so use #pragma pack when compiling for windows, this is also supported
by MSCV.
Change-Id: I635649d52ed5f2e0af46cb9ca2ec325955b2ddb2
We cannot auto-detect a device if we don't know its model ID, but we can't know
the model ID if we haven't decrypted the upgrade which requires the key. The only
way to solve this chicken-and-egg problem is to get the NVP table from kernel,
create an empty series in the database (no model ID), then get the key using
scsitool and forcing the model (using this commit), then decrypt the upgrade
and get the model ID list.
Change-Id: I8eced486a5f6a1a99028b25fdc4f87a3b11e31a8
We already use Crypto++ for DES anyway, and using OpenSSL is not great because
of its incompatible licence.
Change-Id: I78771b84c1708795a0c0c30afa5bdfe4885dea4e
Since ext3 supports ext2, we can support more platforms. Some platforms use ext4
with a very specific set of options, we I haven't encountered those yet so it's
not currently a problem.
Change-Id: Iff87e925a4caa866c6a66b1883ad6baab88c0b8d
The new code gets closer to an actual bootloader:
- it provides a menu with three options: Sony, Rockox, tools with icons (and
extracts the Sony logo from the NVP)
- the dualboot install script now creates a symlink from /.rockbox to
/contents/.rockox which is necessary to run rockbox
- more text drawing / framebuffer functions
In the long run, we will move this under bootloader/ and rbutil/ and also use
firmware/ drawing facilities, at the moment we use OF display program which
is slow and creates some flickering.
The logo extraction/placement code was tested with resolution 240x320 and I
guessed some reasonable values for 240x400, but those will probably need some
tweaking.
Change-Id: I0319be902d21a7d33c1dee0fffdb4797065dbf8a
Now that we have a nice database of player index, the scsitool becomes more
useful and supports a lot more players. I did some general cleanup of the code,
though eventually it would be nice to really split it into a library and a CLI.
The SCSI vendor command allow to read but also write most NVP nodes. Since there
seems to a demand to change destination and sound pressure settings on device,
I implement this feature in the tool. I do not plan to allow arbitrary NVP
writes because this could easily brick the device. Changing the destination
should be safe, but as usual, use at your own risks.
Change-Id: Iff4e8cc3ac97b965c1df849051c5fd373756cda5
Using the database, we can now safely read/write the NVP. I also add more
support for Sony's "display" tool.
Change-Id: I8439fe9bad391c7f29859d99f236781be7983625
There must be an evil genius in Sony's Walkman division. Someone who made sure
that each model is close enough to the previous one so that little code is needed
but different enough so that an educated guess is not enough.
Each linux-based Sony player has a model ID (mid) which is a 32-bit integer.
I was able to extract a list of all model IDs and the correspoding name of
the player (see README). This gives us 1) a nice list of all players (because
NWZ-A729 vs NWZ-A729B, really Sony?) 2) an easy way to find the name of player
programatically. It seems that the lower 8-bit of the model ID gives the storage
size but don't bet your life on it. The remaining bytes seem to follow some kind
of pattern but there are exceptions.
From this list, I was able to build a list of all Sony's series (up to quite
recent one). The only safe way to build that is by hand, with a list of series,
each series having a list of model IDs. The notion of series is very important
because all models in a series share the same firmware.
A very important concept on Sony's players is the NVP, an area of the flash
that stores data associated with keys. The README contains more information but
basically this is where is record the model ID, the destination, the boot flags,
the firmware upgrade flags, the boot image, the DRM keys, and a lot of other stuff.
Of course Sony decided to slightly tweak the index of the keys regularly over time
which means that each series has a potentially different map, and we need this map
to talk to the NVP driver. Fortunately, Sony distributes the kernel for all its
players and they contain a kernel header with this information. I wrote a script
to unpack kernel sources and parse this header, producing a bunch of nw-*.txt
files, included in this commit. This map is very specific though: it maps Sony's
3-letter names (bti) to indexes (1). This is not very useful without the
decription (bti = boot image) and its size (262144). This information is harder
to come by, and is only stored in one place: if icx_nvp_emmc.ko drivers, found
on the device. Fortunately, Sony distributes a number of firmware upgrade, that
contain the rootfs, than once extracted contain this driver. The driver is a
standard ELF files with symbols. I wrote a parsing tool (nvptool) that is able
to extract this information from the drivers. Using that, I produced a bunch
of nodes-nw*.txt files. A reasonable assumption is that nodes meaning and
size do not change over time (bti is always the boot image and is always
262144 bytes), so by merging a few of those file, we can get a complete picture
(note that some nodes that existed in older player do not exists anymore so
we really need to merge several ones from different generations).
The advantage of storing all this information in plain text files, is that it
now makes it easy to parse it and produce whatever format we want to use it.
I wrote a python script that parses all this mess and produces a C file and
header with all this information (nwz_db.{c,h}).
Change-Id: Id790581ddd527d64418fe9e4e4df8e0546117b80
Sony added extensions to the frambuffer interface. It is important to take them
into account since the OF uses them and might leave the framebuffer in an
unusual state which would make the dualboot not display anything. Also rework
the dualboot code so that it can boot rockbox (not doing anything at the moment),
display all tools or boot the OF.
Change-Id: Ia0f589c9ec8558f375270841503c0964aff07f0b
At the moment, the script install_duaboot does the following:
- rename SpiderApp to SpiderApp.of (unless it already exists)
- install payload as SpiderApp
- fixes permissions
Since SpiderApp is the main app, it will execute instead of the OF.
The current dualboot code (dualboot.c) is still a preliminary but the current
version displays an "all tools" menu to choose for. When exitting the menu
using BACK, it will run the OF.
With the modifications made by the install script, it should not be possible
to break the device. In the worst case scenario, the dualboot code crashes
and it restarted by the sysmgrd, or hangs. A safe way to recover is to plug
the USB cable and reset the device: the system manager will then start the
USB app and one can reflash the device if necessary.
Change-Id: Id9edab0347538ad2a8651a28aea7fd083feaa626
Unify series names: e46x -> e460 to be consistent with Sony' name. Add keys
for various players that were cracked using upgtools. The real KAS would need
to be extracted from a target but at least we can open/create firmware upgrades.
Change-Id: Id23a10e10170d7f6330c6699bf205c4df5ddebfe
This new tool (all_tools) embeds all the other tools and provides a menu to
choose which one to run.
Change-Id: I0e07864dd46559a7079b0f942c25155e6fa07112
Since the nwz_lib does not have any nvp code yet, it's quite of ugly hack
with hardcoded nvp node (11) for shipment information (shp). Thus I whitelisted
two series (NWZ-E460 and NWZ-A860) which I know for sure use this node ID.
Change-Id: I94c9b0db1f9d7ad764d2aa50576a911e710f25e1
This list can map from model id to device name. It was automatically extracted
from Sony's tools. In the future, we will probably generate it from a clean
database containing more useful information.
Change-Id: Ibe580edf25b60bf0bf4aef4a06f40dddd19c5404
This is useful because there is no easy way to get it except from Sony's tool,
unless one knows the npv node, but that requires to know the model already...
Change-Id: I202f7cdb2f7cf924cc5bdb53c17e34600d4bf153
The new search has two new features:
- it takes advantage of the fact that DES keys are only 56-bit long (and not 64)
- it is now multithreaded
As a proof of concept, I ran it on the A10 series firmware upgrade and was able
to find the key in a few seconds using 4 threads. The search is still limited
to ascii hex passwords (seems to work on all devices I have tried thus far).
Change-Id: Ied080286d2bbdc493a6ceaecaaadba802b429666
This is code is intended to development into a library of code for the NWZ that
will be useful to write the "bootloader" on those device. At the same time, it
comes with test programs that are easy to run in firmware upgrade mode and also
provide a great test bench for the library. At the moment, two test programs are
available:
- test_display: simply prints two messages using /usr/bin/lcdmsg
- test_keys: displays input key event
Change-Id: I9d214894ffc9127b528fcdd3eb5d6b61f4e657a7
The exec_file allows to embed a script/executable and run it on target. It takes
of unpacking, remounting contents rw and redirect output to exec.txt at the root
of the drive. More generally, rework how the makefile works.
Change-Id: Iec719227be96e80701ad8f5398d2d34389f4da9e
There was a lot of copy and paste, and the code was just crap. This commit tries
to clarify the code and also document the encryption procedure. Hopefully I didn't
break anything.
Change-Id: I257793010e7cf94f2b090b30bb8608359d3886e3
There is a windows port of the sg_utils library for scsi pass-
through. This little changes make it compile under mingw. A better
fix would be to implement direct ioctl on both windows and linux
but that's already better than nothing
Change-Id: I0d77cd1bad69806a66f0590362f165f24fa240e9
