forked from luck/tmp_suning_uos_patched
ffeb1e9e89
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200719160910.60018-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
166 lines
5.5 KiB
ReStructuredText
166 lines
5.5 KiB
ReStructuredText
==============================
|
|
Multifunction Composite Gadget
|
|
==============================
|
|
|
|
Overview
|
|
========
|
|
|
|
The Multifunction Composite Gadget (or g_multi) is a composite gadget
|
|
that makes extensive use of the composite framework to provide
|
|
a... multifunction gadget.
|
|
|
|
In it's standard configuration it provides a single USB configuration
|
|
with RNDIS[1] (that is Ethernet), USB CDC[2] ACM (that is serial) and
|
|
USB Mass Storage functions.
|
|
|
|
A CDC ECM (Ethernet) function may be turned on via a Kconfig option
|
|
and RNDIS can be turned off. If they are both enabled the gadget will
|
|
have two configurations -- one with RNDIS and another with CDC ECM[3].
|
|
|
|
Please note that if you use non-standard configuration (that is enable
|
|
CDC ECM) you may need to change vendor and/or product ID.
|
|
|
|
Host drivers
|
|
============
|
|
|
|
To make use of the gadget one needs to make it work on host side --
|
|
without that there's no hope of achieving anything with the gadget.
|
|
As one might expect, things one need to do very from system to system.
|
|
|
|
Linux host drivers
|
|
------------------
|
|
|
|
Since the gadget uses standard composite framework and appears as such
|
|
to Linux host it does not need any additional drivers on Linux host
|
|
side. All the functions are handled by respective drivers developed
|
|
for them.
|
|
|
|
This is also true for two configuration set-up with RNDIS
|
|
configuration being the first one. Linux host will use the second
|
|
configuration with CDC ECM which should work better under Linux.
|
|
|
|
Windows host drivers
|
|
--------------------
|
|
|
|
For the gadget to work under Windows two conditions have to be met:
|
|
|
|
Detecting as composite gadget
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
First of all, Windows need to detect the gadget as an USB composite
|
|
gadget which on its own have some conditions[4]. If they are met,
|
|
Windows lets USB Generic Parent Driver[5] handle the device which then
|
|
tries to match drivers for each individual interface (sort of, don't
|
|
get into too many details).
|
|
|
|
The good news is: you do not have to worry about most of the
|
|
conditions!
|
|
|
|
The only thing to worry is that the gadget has to have a single
|
|
configuration so a dual RNDIS and CDC ECM gadget won't work unless you
|
|
create a proper INF -- and of course, if you do submit it!
|
|
|
|
Installing drivers for each function
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
The other, trickier thing is making Windows install drivers for each
|
|
individual function.
|
|
|
|
For mass storage it is trivial since Windows detect it's an interface
|
|
implementing USB Mass Storage class and selects appropriate driver.
|
|
|
|
Things are harder with RDNIS and CDC ACM.
|
|
|
|
RNDIS
|
|
.....
|
|
|
|
To make Windows select RNDIS drivers for the first function in the
|
|
gadget, one needs to use the [[file:linux.inf]] file provided with this
|
|
document. It "attaches" Window's RNDIS driver to the first interface
|
|
of the gadget.
|
|
|
|
Please note, that while testing we encountered some issues[6] when
|
|
RNDIS was not the first interface. You do not need to worry abut it
|
|
unless you are trying to develop your own gadget in which case watch
|
|
out for this bug.
|
|
|
|
CDC ACM
|
|
.......
|
|
|
|
Similarly, [[file:linux-cdc-acm.inf]] is provided for CDC ACM.
|
|
|
|
Customising the gadget
|
|
......................
|
|
|
|
If you intend to hack the g_multi gadget be advised that rearranging
|
|
functions will obviously change interface numbers for each of the
|
|
functionality. As an effect provided INFs won't work since they have
|
|
interface numbers hard-coded in them (it's not hard to change those
|
|
though[7]).
|
|
|
|
This also means, that after experimenting with g_multi and changing
|
|
provided functions one should change gadget's vendor and/or product ID
|
|
so there will be no collision with other customised gadgets or the
|
|
original gadget.
|
|
|
|
Failing to comply may cause brain damage after wondering for hours why
|
|
things don't work as intended before realising Windows have cached
|
|
some drivers information (changing USB port may sometimes help plus
|
|
you might try using USBDeview[8] to remove the phantom device).
|
|
|
|
INF testing
|
|
...........
|
|
|
|
Provided INF files have been tested on Windows XP SP3, Windows Vista
|
|
and Windows 7, all 32-bit versions. It should work on 64-bit versions
|
|
as well. It most likely won't work on Windows prior to Windows XP
|
|
SP2.
|
|
|
|
Other systems
|
|
-------------
|
|
|
|
At this moment, drivers for any other systems have not been tested.
|
|
Knowing how MacOS is based on BSD and BSD is an Open Source it is
|
|
believed that it should (read: "I have no idea whether it will") work
|
|
out-of-the-box.
|
|
|
|
For more exotic systems I have even less to say...
|
|
|
|
Any testing and drivers *are* *welcome*!
|
|
|
|
Authors
|
|
=======
|
|
|
|
This document has been written by Michal Nazarewicz
|
|
([[mailto:mina86@mina86.com]]). INF files have been hacked with
|
|
support of Marek Szyprowski ([[mailto:m.szyprowski@samsung.com]]) and
|
|
Xiaofan Chen ([[mailto:xiaofanc@gmail.com]]) basing on the MS RNDIS
|
|
template[9], Microchip's CDC ACM INF file and David Brownell's
|
|
([[mailto:dbrownell@users.sourceforge.net]]) original INF files.
|
|
|
|
Footnotes
|
|
=========
|
|
|
|
[1] Remote Network Driver Interface Specification,
|
|
[[https://msdn.microsoft.com/en-us/library/ee484414.aspx]].
|
|
|
|
[2] Communications Device Class Abstract Control Model, spec for this
|
|
and other USB classes can be found at
|
|
[[http://www.usb.org/developers/devclass_docs/]].
|
|
|
|
[3] CDC Ethernet Control Model.
|
|
|
|
[4] [[https://msdn.microsoft.com/en-us/library/ff537109(v=VS.85).aspx]]
|
|
|
|
[5] [[https://msdn.microsoft.com/en-us/library/ff539234(v=VS.85).aspx]]
|
|
|
|
[6] To put it in some other nice words, Windows failed to respond to
|
|
any user input.
|
|
|
|
[7] You may find [[http://www.cygnal.org/ubb/Forum9/HTML/001050.html]]
|
|
useful.
|
|
|
|
[8] https://www.nirsoft.net/utils/usb_devices_view.html
|
|
|
|
[9] [[https://msdn.microsoft.com/en-us/library/ff570620.aspx]]
|