Repository: zombieCraig/uds-server
Branch: master
Commit: 4ec7e7dec889
Files: 7
Total size: 73.0 KB
Directory structure:
gitextract_hg_8ab0o/
├── LICENSE
├── Makefile
├── README.md
├── can_setup.sh
├── uds-server.c
├── uds-server.h
└── vintest.sh
================================================
FILE CONTENTS
================================================
================================================
FILE: LICENSE
================================================
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{description}
Copyright (C) {year} {fullname}
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
{signature of Ty Coon}, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
================================================
FILE: Makefile
================================================
C=gcc
all: uds-server
uds-userver: uds-server.o
$(CC) -o uds-server uds-server.c
clean:
rm -f uds-server *.o
================================================
FILE: README.md
================================================
UDS Server
==========
Unified Diagnostic Services (UDS) Server - is a ECU simulator that provides UDS support.
This application was originally written to go alongside of [ICSim] (https://github.com/zombieCraig/ICSim)
for training.
Running both ICSim and uds-server can give students a more realistic use of tools. You can use
ICSim to understand the basics of reversing CAN and uds-server to dig into the UDS protocol
and Engine Control Unit (ECU) inspections such as memory reads and device I/O controls via the ECU instead of spoofed
Controller Area Network (CAN bus) packets.
In addition, when developing uds-server, it showed several more uses. When a dealership tool
is known to uds-server, it makes it very easy to see what the tool is attempting to do by spoofing
a real target vehicle. This allows you to quickly reverse commands from dealership tools and
see only the packets that matter. Another nice feature, is the ability to fuzz the
dealership/scantools to see if they are doing proper input validation checks. This enables
uds-server to work as a security tool by playing the role of a modified "malicious" vehicle and
seeing how the shop's tools handle the malformed requests.
Compiling uds-server
====================
Right now the tool was developed on Ubuntu Linux but is simple enough that it should compile on
any standard Linux system. Simply type 'make':
```
$ make
cc uds-server.c -o uds-server
```
This version is still considered 'alpha' but the help screen should look something like:
```
Simulates UDS responses
Usage: ./uds-server [options]
-z Increase fuzz level
-v Verbose
-l Log output to file instead of STDOUT
-c Don't fuzz ISOTP Spec, just data
-F Disable flow control (Functional Addressing)
-V Specify VIN (Default: WAUZZZ8V9FA149850)
```
Most of these switches are just for early testing and will eventually be moved
to a config file for more flexibility in fuzzing, etc.
Running uds-server for testing
==============================
If you are running uds-server along with ICSim then simply start another terminal window and
run:d
```
$ uds-server vcan0
```
Then you can practice commands to get VIN or use things like [CaringCaribou] (https://github.com/CaringCaribou/caringcaribou) to brute force or identify diagnostic services.
If you ware working with a dealership tool or a scan tool then you will use the real can0 interface
instead. You will need a small CAN network to bridge the dealership/scantool with your CAN
sniffer attached to uds-server. You can breadboard this or build a small portable device we lovingly
call the ODB GW.
ODB GW
======
The ODB Gateway (ODB GW) is a tribute to Ol' Dirty Bastard (RIP) and the mispronunciation
of OBD (On-board diagnostics) ports. It is a simple device that you can easily build yourself:
* 2 x Female J1962 OBD-II Ports (~$10/ea)
* Project Box (~$5)
* at least 2 120 Ohm Resistors (or 1 240 Ohm) (pennies)
* 12 V Power Supply (~12)
* Some wires and maybe banana plug connectors
The minimum wiring is as follows:
* Connect pin 12 together for power and splice a line to the 12V supply
* Connect pins 4 and 5 together for ground and splice a line to the 12V supply
* Connect pin 6 together for CAN High
* Connect pin 14 together for CAN Low
* Add 240 Ohm resistance across CAN High and Low
You can bridge more pins but how they are wired depends on what type of vehicle scanner you
are testing. For instance, several vehicles have many different CAN buses on the other
available pins while other manufacturers use the other pins for different protocols such
as K-Line/KWP. The above wiring is universal but you may miss out on signals from
dealership tools if you don't also listen on the other pins.
Reversing Dealership Tools
==========================
Using your own CAN network or the ODB GW, plug in a dealership tool or scan tool in one end and
your sniffer on the other. Make sure 12V power is supplied to your virtual bus, some scantools
only operate when they have power from pin 16. Set your CAN bus speeds to be the speed
the dealership tool will expect, for HS CAN this is most likely 500k.
```
$ sudo ip link set can0 up type can bitrate 500000
```
Now run uds-server with the verbose option set on your can0 interface and use the
dealership tool like you would on an actual vehicle. For example below we use a GM TechII
and request the doors to unlock via the TechII interface. Looking at the uds-server output
we see:
```
Pkt: 244#01 3E
Responding with a generic OK message
Pkt: 244#04 AA 03 02 07
Received GM Read Data by ID Request
+ Medium Rate
Pkt: 244#01 3E
Responding with a generic OK message
Pkt: 244#07 AE 01 03 00 00 00 00
Unhandled mode/sid: Device Control (GM)
Pkt: 244#01 3E
Responding with a generic OK message
Pkt: 101#FE 01 3E 55 55 55 55 55
Pkt: 244#01 3E
Responding with a generic OK message
Pkt: 244#02 AE 00
Unhandled mode/sid: Device Control (GM)
Pkt: 244#01 3E
Responding with a generic OK message
Pkt: 244#01 3E
Responding with a generic OK message
Pkt: 244#02 AA 00
Received GM Read Data by ID Request
+ Stop Data Request
```
In this output the generic OK message refers to a TesterPresent packet sent by the dealership
tool. We simply respond with OK when we see things like this. Next the Tool requests some
data to be sent at a Medium interval rate. uds-server will do that with bogus data. Then we see
a Device Control (GM) request. We don't handle it because it's an output request and there is
nothing to spoof. However the packet info is useful:
```
Pkt: 244#07 AE 01 03 00 00 00 00
Unhandled mode/sid: Device Control (GM)
```
This means that sending 244#07AE010300000000 after sending TesterPresent (244#013E) will unlock
the driver side door. Later there is another Device Control message to stop doing device
controls 244#02AE00.
This makes it very easy to identify IO controls and to see where data is being requested from.
Often dealership tools won't use the standard UDS mode $09 to get things like VIN but instead they
request VIN and other information via memory locations.
Fuzzing Dealership Tools
========================
If you want to test the security of a dealership tool or scantool then uds-server has a fuzzing
option. Currently this is still in a Proof of Concept (PoC) stage and it needs to be refined but
the way it currently works is you can specify -z to increase the fuzzing level. The more -z's you
use the more fuzzing it will do.
For instance:
```
$ uds-server -v -z can0
Using CAN interface can0
Fuzz level set to: 1
```
This will do things like randomize the Vehicle Identification Number (VIN) and some Diagnostic
Trouble Code (DTC) messages.
```
$ uds-server -v -zzzz can0
Using CAN interface can0
Fuzz level set to: 4
```
This will do things like send WAY too many DTCs (think hundreds) or create HUGE VINs that
also include binary data. A VIN contains an internal checksum that uds-server will automatically
calculate correctly for fuzzing. If you want to specify a VIN you can do so via the command
line:
```
$ uds-server -v -V "PWN3D OP3N G4R4G3" can0
```
This will report the vehicles VIN as "PWN3D OP3N G4R4G3" which by the way is a "valid" VIN based on the
checksum byte. Some tools use VIN as the lookup for what type of vehicle it is working with, so
specifying a valid one for your target vehicle can be useful.
uds-server hacking
==================
Right now new ECU modules need to be added by hand. Which means you will need to understand the C
code and add handlers for how you want to respond to different types of packets. Debugging currently
is a hard coded constant as well. This is because uds-server is still in its PoC stage and could
evolve in many different directions.
Feel free to fork the code and add whatever new handlers you want to add. Ultimately the fuzzing
configuration and ECU configurations will be handled by a separate config file.
Credits
=======
Craig Smith - craig@theialabs.com
OpenGarages - opengarages.org (@OpenGarages)
================================================
FILE: can_setup.sh
================================================
sudo ip link set can0 up type can bitrate 500000
================================================
FILE: uds-server.c
================================================
/*
* Instrument cluster simulator
*
* (c) 2014 Open Garages - Craig Smith
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "uds-server.h"
#define DEBUG 0
//#define VIN "1G1ZT53826F109149"
//#define VIN "5YJSA1S2FEFA00001"
#define VIN "WAUZZZ8V9FA149850"
//#define VIN "2B3KA43R86H389824"
#define DATA_ALPHA 0
#define DATA_ALPHANUM 1
#define DATA_BINARY 2
/* Globals */
int running = 0;
int verbose = 0;
int no_flow_control = 0;
int fuzz_level = 0;
int keep_spec = 0;
FILE *plogfp = NULL;
char *vin = VIN;
struct timeval start_tv;
int pending_data;
struct can_frame gm_data_by_id;
long gm_lastcms = 0;
/* This is for flow control packets */
char gBuffer[255];
int gBufSize;
int gBufLengthRemaining;
int gBufCounter;
/* Prototypes */
void print_pkt(struct canfd_frame);
void print_bin(unsigned char *, int);
void usage(char *app, char *msg) {
printf("Simulates UDS responses\n");
if (msg) printf("%s\n", msg);
printf("Usage: %s [options] \n", app);
printf("\t-z\t\tIncrease fuzz level\n");
printf("\t-v\t\tVerbose\n");
printf("\t-l \tLog output to file instead of STDOUT\n");
printf("\t-c\t\tDon't fuzz ISOTP Spec, just data\n");
printf("\t-F\t\tDisable flow control (Functional Addressing)\n");
printf("\t-V \tSpecify VIN (Default: %s)\n", VIN);
printf("\n");
exit(1);
}
// Simple function to print logging info to screen or to a file
void plog(char *fmt, ...) {
va_list args;
char buf[2046];
int len;
va_start(args, fmt);
len = vsnprintf(buf, 2045, fmt, args);
va_end(args);
if(plogfp) {
len = fwrite(buf, 1, len, plogfp);
} else {
printf("%s", buf);
}
}
void intHandler(int sig) {
running = 0;
}
// Generates data into a buff and returns it.
char *gen_data(int scope, int size) {
char *charset, *buf;
unsigned char byte;
int num;
int i;
buf = malloc(size);
memset(buf,0,size);
switch(scope) {
case DATA_ALPHA:
charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
for(i = 0; i < size; i++) {
buf[i] = charset[rand() % strlen(charset)];
}
break;
case DATA_ALPHANUM:
charset = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
for(i = 0; i < size; i++) {
num = rand() % strlen(charset);
byte = charset[num];
if (DEBUG) printf("DEBUG: random byte[%d] = %d %02X\n", i, num, byte);
buf[i] = byte;
}
break;
case DATA_BINARY:
for(i = 0; i < size; i++) {
buf[i] = rand() % 256;
}
default:
break;
}
return buf;
}
// If a flow control packet comes in, push out more data
// This isn't fully supported, just a hack at the moment
void flow_control_push_to(int can, int id) {
struct canfd_frame frame;
int nbytes;
if(no_flow_control) return;
if(verbose) plog("FC: Flushing ISOTP buffers\n");
frame.can_id = id;
while(gBufLengthRemaining > 0) {
if(gBufLengthRemaining > 7) {
frame.len = 8;
frame.data[0] = gBufCounter;
memcpy(&frame.data[1], gBuffer+(gBufSize-gBufLengthRemaining), 7);
nbytes = write(can, &frame, CAN_MTU);
if(nbytes < 0) perror("Write packet (FC)");
gBufCounter++;
gBufLengthRemaining -= 7;
} else {
frame.len = gBufLengthRemaining + 1;
frame.data[0] = gBufCounter;
memcpy(&frame.data[1], gBuffer+(gBufSize-gBufLengthRemaining), CAN_MTU);
nbytes = write(can, &frame, CAN_MTU);
if(nbytes < 0) perror("Write packet (FC Final)");
gBufLengthRemaining = 0;
}
}
}
void flow_control_push(int can) {
flow_control_push_to(can, 0x7e8);
}
void isotp_send_to(int can, char *data, int size, int dest) {
struct canfd_frame frame;
int left = size;
int counter;
int nbytes;
if(size > 256) return;
frame.can_id = dest;
if(size < 7) {
frame.len = size + 1;
frame.data[0] = size;
memcpy(&frame.data[1], data, size);
nbytes = write(can, &frame, CAN_MTU);
if(nbytes < 0) perror("Write packet");
} else {
frame.len = 8;
frame.data[0] = 0x10;
if(fuzz_level > 2 && keep_spec == 0) {
frame.data[1] = rand() % 256;
printf("Breaking ISOTP specs real size = %d reported size = %d\n", size, frame.data[1]);
} else {
frame.data[1] = (char)size-1;
}
memcpy(&frame.data[2], data, 6);
nbytes = write(can, &frame, CAN_MTU);
if(nbytes < 0) perror("Write packet");
left -= 6;
counter = 0x21;
if(no_flow_control) {
while(left > 0) {
if(left > 7) {
frame.len = 8;
frame.data[0] = counter;
memcpy(&frame.data[1], data+(size-left), 7);
write(can, &frame, CAN_MTU);
counter++;
left -= 7;
} else {
frame.len = left + 1;
frame.data[0] = counter;
memcpy(&frame.data[1], data+(size-left), CAN_MTU);
write(can, &frame, frame.len);
left = 0;
}
}
} else { // FC
memcpy(gBuffer, data, size); // Size is restricted to <256
gBufSize = size;
gBufLengthRemaining = left;
gBufCounter = counter;
}
}
}
void isotp_send(int can, char *data, int size) {
isotp_send_to(can, data, size, 0x7e8);
}
/*
* Some UDS queries requiest periodic data. This handles those
*/
void handle_pending_data(int can) {
struct canfd_frame frame;
struct timeval tv;
long currcms;
int i, offset, datacnt;
if(!pending_data) return;
gettimeofday(&tv, NULL);
currcms = (tv.tv_sec - start_tv.tv_sec) * 100 + (tv.tv_usec / 10000);
if(IS_SET(pending_data, PENDING_READ_DATA_BY_ID_GM)) {
if(gm_data_by_id.data[0] == 0xFE) {
offset = 1;
} else {
offset = 0;
}
frame.can_id = gm_data_by_id.can_id;
frame.len = 8;
switch(gm_data_by_id.data[2 + offset]) { // Subfunctions
case 0x02: // Slow Rate
if (currcms - gm_lastcms > 1000) {
for(i=3; i < gm_data_by_id.data[0]+1; i++) {
frame.data[0] = gm_data_by_id.data[i];
for(datacnt=1; datacnt < 8; datacnt++) {
frame.data[datacnt] = rand() % 255;
}
write(can, &frame, CAN_MTU);
if(verbose > 1) plog(" + Sending GM data (%02X) at a slow rate\n", frame.data[0]);
}
gm_lastcms = currcms;
}
break;
case 0x03: // Medium Rate
if (currcms - gm_lastcms > 100) {
for(i=3; i < gm_data_by_id.data[0]+1; i++) {
frame.data[0] = gm_data_by_id.data[i];
for(datacnt=1; datacnt < 8; datacnt++) {
frame.data[datacnt] = rand() % 255;
}
write(can, &frame, CAN_MTU);
if(verbose > 1) plog(" + Sending GM data (%02X) at a medium rate\n", frame.data[0]);
}
gm_lastcms = currcms;
}
break;
case 0x04: // Fast Rate
if (currcms - gm_lastcms > 20) {
for(i=3; i < gm_data_by_id.data[0]+1; i++) {
frame.data[0] = gm_data_by_id.data[i];
for(datacnt=1; datacnt < 8; datacnt++) {
frame.data[datacnt] = rand() % 255;
}
write(can, &frame, CAN_MTU);
if(verbose > 1) plog(" + Sending GM data (%02X) at a fast rate\n", frame.data[0]);
}
gm_lastcms = currcms;
}
break;
default:
plog("Unknown subfunction timer\n");
break;
}
} // IS_SET PENDING_READ_DATA_BY_ID_GM
}
void send_dtcs(int can, char total, struct canfd_frame frame) {
char resp[1024];
char i;
memset(resp, 0, 1024);
switch(fuzz_level) {
case 0: // Default is to make P01XX where XX = total number of DTCs
resp[0] = frame.data[1] + 0x40;
resp[1] = total; // Total DTCs
for(i = 0; i <= total*2; i+=2) {
resp[2+i] = 1;
resp[2+i+1] = i;
}
if(total == 0) {
isotp_send(can, resp, 2);
} else if (total < 3) {
isotp_send(can, resp, 2+(total*2));
} else {
isotp_send(can, resp, total*2);
}
break;
case 1:
resp[0] = frame.data[1] + 0x40;
resp[1] = rand() % 256;
if (verbose) plog("Randomized total DTCs to %d real DTCs %d\n", resp[1], total);
for(i = 0; i <= total*2; i+=2) {
resp[2+i] = 1;
resp[2+i+1] = i;
}
if(total == 0) {
isotp_send(can, resp, 2);
} else if (total < 3) {
isotp_send(can, resp, 2+(total*2));
} else {
isotp_send(can, resp, total*2);
}
break;
case 2:
default:
resp[0] = frame.data[1] + 0x40;
total = rand() % 128;
resp[1] = total;
if (verbose) plog("Randomized total DTCs to %d\n", resp[1]);
for(i = 0; i <= total*2; i+=2) {
resp[2+i] = rand() % 256;
resp[2+i+1] = rand() % 256;
}
if (verbose) {
plog("DTC random data is:\n");
print_bin(&resp[2], total*2);
}
if(total == 0) {
isotp_send(can, resp, 2);
} else if (total < 3) {
isotp_send(can, resp, 2+(total*2));
} else {
isotp_send(can, resp, total*2);
}
break;
}
}
unsigned char calc_vin_checksum(char *vin, int size) {
char w[17] = { 8, 7, 6, 5, 4, 3, 2, 10, 0, 9, 8, 7, 6, 5, 4, 3, 2 };
int i;
int checksum = 0;
int num;
for(i=0; i < size; i++) {
if(vin[i] == 'I' || vin[i] == 'O' || vin[i] == 'Q') {
num = 0;
} else {
if(vin[i] >= '0' && vin[i] <='9') num = vin[i] - '0';
if(vin[i] >= 'A' && vin[i] <='I') num = (vin[i] - 'A') + 1;
if(vin[i] >= 'J' && vin[i] <='R') num = (vin[i] - 'J') + 1;
if(vin[i] >= 'S' && vin[i] <='Z') num = (vin[i] - 'S') + 2;
}
checksum += num * w[i];
}
checksum = checksum % 11;
if (checksum == 10) return 'X';
return ('0' + checksum);
}
void send_error_snfs(int can, struct canfd_frame frame) {
char resp[4];
if(verbose) plog("Responded with Sub Function Not Supported\n");
resp[0] = 0x7f;
resp[1] = frame.data[1];
resp[2] = 12; // SubFunctionNotSupported
isotp_send(can, resp, 3);
}
void send_error_roor(int can, struct canfd_frame frame, int id) {
char resp[4];
if(verbose) plog("Responded with Sub Function Not Supported\n");
resp[0] = 0x7f;
resp[1] = frame.data[1];
resp[2] = 31; // RequestOutOfRange
isotp_send_to(can, resp, 3, id);
}
void generic_OK_resp(int can, struct canfd_frame frame) {
char resp[4];
if(verbose > 1) plog("Responding with a generic OK message\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0;
isotp_send(can, resp, 3);
}
void generic_OK_resp_to(int can, struct canfd_frame frame, int id) {
char resp[4];
if(verbose > 1) plog("Responding with a generic OK message\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0;
isotp_send_to(can, resp, 3, id);
}
void handle_current_data(int can, struct canfd_frame frame) {
if(verbose) plog("Received Current info request\n");
char resp[8];
switch(frame.data[2]) {
case 0x00: // Supported PIDs
if(verbose) plog("Responding with a generic set of PIDs (1-20)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
case 0x01: // MIL & DTC Status
if(verbose) plog("Responding to MIL and DTC Status request\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x00;
resp[3] = 0x07;
resp[4] = 0xE5;
resp[5] = 0xE5;
isotp_send(can, resp, 6);
break;
case 0x20: // More supported PIDs (21-40)
if(verbose) plog("Responding with PIDs supported (21-40)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
case 0x40: // More supported PIDs (41-60)
if(verbose) plog("Responding with PIDs supported (41-60)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
case 0x41: // Monitor status this drive cycle
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0;
resp[3] = 0x0F;
resp[4] = 0xFF;
resp[5] = 0x00;
isotp_send(can, resp, 6);
break;
case 0x60: // More supported PIDs (61-80)
if(verbose) plog("Responding with PIDs supported (61-80)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
case 0x80: // More supported PIDs (81-100)
if(verbose) plog("Responding with PIDs supported (81-100)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
case 0xA0: // More Supported PIDs (101-120)
if(verbose) plog("Responding with PIDs supported (101-120)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
case 0xC0: // More supported PIDs (121-140)
if(verbose) plog("Responding with PIDs supported (121-140)\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xBF;
resp[3] = 0xBF;
resp[4] = 0xB9;
resp[5] = 0x93;
isotp_send(can, resp, 6);
break;
default:
if(verbose) plog("Note: Requested unsupported service %02X\n", frame.data[2]);
break;
}
}
void handle_vehicle_info(int can, struct canfd_frame frame) {
char *buf;
int pktsize = 0;
unsigned char chksum;
if(verbose) plog("Received Vehicle info request\n");
char resp[300];
switch(frame.data[2]) {
case 0x00: // Supported PIDs
if(verbose) plog("Replying with ALL Pids supported\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x55;
resp[3] = 0;
resp[4] = 0;
resp[5] = 0;
isotp_send(can, resp, 6);
break;
case 0x02: // Get VIN
switch(fuzz_level) {
case 0:
if(verbose) plog("Sending VIN %s\n", vin);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 1;
memcpy(&resp[3], vin, strlen(vin));
isotp_send(can, resp, 4 + strlen(vin));
break;
case 1:
if(verbose) plog("Fuzzing VIN with printable chars\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 1;
buf = gen_data(DATA_ALPHANUM, 17);
chksum = calc_vin_checksum(buf, 17);
buf[8] = chksum;
if(verbose) plog("Using VIN: %s\n", buf);
memcpy(&resp[3], buf, 17);
free(buf);
isotp_send(can, resp, 4 + 17);
break;
case 2:
case 3: // At 3 the ISOTP spec gets flaky
pktsize = rand() % 252;
if(verbose) plog("Fuzzing big VIN with printable chars\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 1;
buf = gen_data(DATA_ALPHANUM, pktsize);
chksum = calc_vin_checksum(buf, pktsize);
buf[8] = chksum;
if(verbose) plog("Using big VIN (%d chars): %s\n",pktsize, buf);
memcpy(&resp[3], buf, pktsize);
free(buf);
isotp_send(can, resp, 4 + pktsize);
break;
case 4:
if(verbose) plog("Fuzzing VIN with binary data\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 1;
buf = gen_data(DATA_BINARY, 17);
chksum = calc_vin_checksum(buf, 17);
buf[8] = chksum;
if(verbose) print_bin(buf, 17);
memcpy(&resp[3], buf, 17);
free(buf);
isotp_send(can, resp, 4 + 17);
break;
case 5:
default:
pktsize = rand() % 252;
if(verbose) plog("Fuzzing VIN with binary data with size %d\n", pktsize);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 1;
buf = gen_data(DATA_BINARY, pktsize);
if(verbose) print_bin(buf, pktsize);
memcpy(&resp[3], buf, pktsize);
free(buf);
isotp_send(can, resp, 4 + pktsize);
break;
}
break;
default:
break;
}
}
void handle_pending_codes(int can, struct canfd_frame frame) {
if(verbose) plog("Received request for pending trouble codes\n");
send_dtcs(can, 20, frame);
}
void handle_stored_codes(int can, struct canfd_frame frame) {
if(verbose) plog("Received request for stored trouble codes\n");
send_dtcs(can, 2, frame);
}
// TODO: This is wrong. Record a real transaction to see the format
void handle_freeze_frame(int can, struct canfd_frame frame) {
if(verbose) plog("Received request for freeze frame code\n");
//send_dtcs(can, 1, frame);
char resp[4];
resp[0] = frame.data[1] + 0x40;
resp[1] = 0x01;
resp[2] = 0x01;
isotp_send(can, resp, 3);
}
void handle_perm_codes(int can, struct canfd_frame frame) {
if(verbose) plog("Received request for permanent trouble codes\n");
send_dtcs(can, 0, frame);
}
void handle_dsc(int can, struct canfd_frame frame) {
//if(verbose) plog("Received DSC Request\n");
//send_error_snfs(can, frame);
if(verbose) plog("Received DSC Request giving VCDS respose\n");
frame.can_id = 0x77A;
frame.len = 8;
frame.data[0] = 0x06;
frame.data[1] = 0x50;
frame.data[2] = 0x03;
frame.data[3] = 0x00;
frame.data[4] = 0x32;
frame.data[5] = 0x01;
frame.data[6] = 0xF4;
frame.data[7] = 0xAA;
write(can, &frame, CAN_MTU);
}
/*
ECU Memory, based on VCDS response for now
*/
void handle_read_data_by_id(int can, struct canfd_frame frame) {
if(verbose) plog("Recieved Read Data by ID %02X %02X\n", frame.data[2], frame.data[3]);
char resp[120];
if(frame.data[2] == 0xF1) {
switch(frame.data[3]) {
case 0x87:
if(verbose) plog("Read data by ID 0x87\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x87;
resp[3] = 0x30;
resp[4] = 0x34;
resp[5] = 0x45;
resp[6] = 0x39;
resp[7] = 0x30;
resp[8] = 0x36;
resp[9] = 0x33;
resp[10] = 0x32;
resp[11] = 0x33;
resp[12] = 0x46;
resp[13] = 0x20; // Note VCDS pads with 55's
isotp_send_to(can, resp, 14, 0x77A);
break;
case 0x89:
if(verbose) plog("Read data by ID 0x89\n");
frame.can_id = 0x7E8;
frame.len = 8;
frame.data[0] = 0x07;
frame.data[1] = 0x62;
frame.data[2] = 0xF1;
frame.data[3] = 0x89;
frame.data[4] = 0x38; //8
frame.data[5] = 0x34; //4
frame.data[6] = 0x31; //1
frame.data[7] = 0x30; //0
write(can, &frame, CAN_MTU);
break;
case 0x9E:
if(verbose) plog("Read data by ID 0x9E\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x45;
resp[3] = 0x56;
resp[4] = 0x5F;
resp[5] = 0x47;
resp[6] = 0x61;
resp[7] = 0x74;
resp[8] = 0x65;
resp[9] = 0x77;
resp[10] = 0x45;
resp[11] = 0x56;
resp[12] = 0x43;
resp[13] = 0x6F;
resp[14] = 0x6E;
resp[15] = 0x74;
resp[16] = 0x69;
resp[17] = 0x00;
isotp_send(can, resp, 0x13);
break;
case 0xA2:
if(verbose) plog("Read data by ID 0xA2\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0xA2;
resp[3] = 0x30; // 004010
resp[4] = 0x30;
resp[5] = 0x34;
resp[6] = 0x30;
resp[7] = 0x31;
resp[8] = 0x30;
isotp_send(can, resp, 9);
break;
default:
if(verbose) plog("Not responding to ID %02X\n", frame.data[3]);
break;
}
} else if(frame.data[2] == 0x06) {
switch(frame.data[3]) {
case 0x00:
if(verbose) plog("Read data by ID 0x9E\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x02;
resp[3] = 0x01;
resp[4] = 0x00;
resp[5] = 0x17;
resp[6] = 0x26;
resp[7] = 0xF2;
resp[8] = 0x00;
resp[9] = 0x00;
resp[10] = 0x5B;
resp[11] = 0x00;
resp[12] = 0x12;
resp[13] = 0x08;
resp[14] = 0x58;
resp[15] = 0x00;
resp[16] = 0x00;
resp[17] = 0x00;
resp[18] = 0x00;
resp[19] = 0x01;
resp[20] = 0x01;
resp[21] = 0x01;
resp[22] = 0x00;
resp[23] = 0x01;
resp[24] = 0x00;
resp[25] = 0x00;
resp[26] = 0x00;
resp[27] = 0x00;
resp[28] = 0x00;
resp[29] = 0x00;
resp[30] = 0x00;
resp[31] = 0x00;
isotp_send(can, resp, 0x21);
break;
case 0x01:
if(verbose) plog("Read data by ID 0x01\n");
send_error_roor(can, frame, 0x7E8);
break;
default:
if(verbose) plog("Not responding to ID %02X\n", frame.data[3]);
break;
}
} else {
if(verbose) plog("Unknown read data by ID %02X\n", frame.data[2]);
}
}
/*
GM
*/
// Read DID from ID (GM)
// For now we are only setting this up to work with the BCM
// 244 [3] 02 1A 90
void handle_gm_read_did_by_id(int can, struct canfd_frame frame) {
if(verbose) plog("Received GM Read DID by ID Request\n");
char resp[300];
char *buf;
char *tracenum = "874602RA51950204";
unsigned char chksum;
int pktsize;
switch(frame.data[2]) {
case 0x90: // VIN
if(verbose) plog(" + Requested VIN\n");
switch(fuzz_level) {
case 0:
if(verbose) plog("Sending VIN %s\n", vin);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
memcpy(&resp[2], vin, strlen(vin));
isotp_send_to(can, resp, 3 + strlen(vin), 0x644);
break;
case 1:
if(verbose) plog("Fuzzing VIN with printable chars\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
buf = gen_data(DATA_ALPHANUM, 17);
chksum = calc_vin_checksum(buf, 17);
buf[8] = chksum;
if(verbose) plog("Using VIN: %s\n", buf);
memcpy(&resp[2], buf, 17);
free(buf);
isotp_send_to(can, resp, 3 + 17, 0x644);
break;
case 2:
case 3: // At 3 the ISOTP spec gets flaky
pktsize = rand() % 252;
if(verbose) plog("Fuzzing big VIN with printable chars\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
buf = gen_data(DATA_ALPHANUM, pktsize);
chksum = calc_vin_checksum(buf, pktsize);
buf[8] = chksum;
if(verbose) plog("Using big VIN (%d chars): %s\n",pktsize, buf);
memcpy(&resp[2], buf, pktsize);
free(buf);
isotp_send_to(can, resp, 3 + pktsize, 0x644);
break;
case 4:
if(verbose) plog("Fuzzing VIN with binary data\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
buf = gen_data(DATA_BINARY, 17);
chksum = calc_vin_checksum(buf, 17);
buf[8] = chksum;
if(verbose) print_bin(buf, 17);
memcpy(&resp[2], buf, 17);
free(buf);
isotp_send_to(can, resp, 3 + 17, 0x644);
break;
case 5:
default:
pktsize = rand() % 252;
if(verbose) plog("Fuzzing VIN with binary data with size %d\n", pktsize);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
buf = gen_data(DATA_BINARY, pktsize);
if(verbose) print_bin(buf, pktsize);
memcpy(&resp[2], buf, pktsize);
free(buf);
isotp_send_to(can, resp, 3 + pktsize, 0x644);
break;
}
break;
case 0xA1: // SDM Primary Key
if(verbose) plog(" + Requested SDM Primary Key\n");
switch(fuzz_level) {
case 0:
default:
if(verbose) plog("Sending SDM Key %04X\n", 0x6966);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x69;
resp[3] = 0x66;
isotp_send_to(can, resp, 5, 0x644);
break;
}
break;
case 0xB4: // Traceability Number
if(verbose) plog(" + Requested Traceability Number\n");
switch(fuzz_level) {
case 0:
default:
if(verbose) plog("Sending Traceabiliity number %s\n", tracenum);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
memcpy(&resp[2], tracenum, strlen(tracenum));
isotp_send_to(can, resp, 3 + strlen(tracenum), 0x644);
break;
}
break;
case 0xB7: // Software Number
if(verbose) plog(" + Requested Software Number\n");
switch(fuzz_level) {
case 0:
default:
if(verbose) plog("Sending SW # %d\n", 600);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x42;
resp[3] = 0xAA;
resp[4] = 6;
resp[5] = 2; // 600
resp[6] = 0x58;
isotp_send_to(can, resp, 6, 0x644);
break;
}
break;
case 0xCB: // End Model Part #
if(verbose) plog(" + Requested End Model Part Number\n");
switch(fuzz_level) {
case 0:
default:
if(verbose) plog("Sending End Model Part Number %d\n", 15804602);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x00;
resp[3] = 0xF1;
resp[4] = 0x28;
resp[5] = 0xBA;
isotp_send_to(can, resp, 6, 0x644);
break;
}
break;
default:
break;
}
}
/* GM Read Data via PID */
/* 244 [5] 04 AA 03 02 07 */
/* 544#0738408D8B000200 */
/* 544#02508D8D00000000 */
void handle_gm_read_data_by_id(int can, struct canfd_frame frame) {
if(verbose) plog("Received GM Read Data by ID Request\n");
int offset = 0;
int i;
int datacnt;
char datacpy[8];
if (frame.data[0] == 0xFE) offset = 1;
memcpy(&datacpy, &frame.data, 8);
if(frame.can_id == 0x7e0) {
frame.can_id = 0x5e8;
} else {
frame.can_id = 0x500 + (frame.can_id & 0xFF);
}
frame.len = 8;
switch(frame.data[2 + offset]) { // Subfunctions
case 0x00: // Stop
if(verbose) plog(" + Stop Data Request\n");
memset(frame.data, 0, 8);
write(can, &frame, CAN_MTU);
CLEAR_BIT(pending_data, PENDING_READ_DATA_BY_ID_GM);
break;
case 0x01: // One Response
if(verbose) plog(" + One Response\n");
for(i=3; i < datacpy[0]+1; i++) {
frame.data[0] = datacpy[i];
for(datacnt=1; datacnt < 8; datacnt++) {
frame.data[datacnt] = rand() % 256;
}
write(can, &frame, CAN_MTU);
sleep(0.5);
}
break;
case 0x02: // Slow Rate
if(verbose) plog(" + Slow Rate\n");
SET_BIT(pending_data, PENDING_READ_DATA_BY_ID_GM);
memcpy(&gm_data_by_id, &frame, sizeof(frame));
break;
case 0x03: // Medium Rate
if(verbose) plog(" + Medium Rate\n");
SET_BIT(pending_data, PENDING_READ_DATA_BY_ID_GM);
memcpy(&gm_data_by_id, &frame, sizeof(frame));
break;
case 0x04: // Fast Rate
if(verbose) plog(" + Fast Rate\n");
SET_BIT(pending_data, PENDING_READ_DATA_BY_ID_GM);
memcpy(&gm_data_by_id, &frame, sizeof(frame));
break;
default:
plog("Unknown subfunction timer\n");
break;
}
}
/* GM Diag format is either
101#FE 03 A9 81 52 (Functional addressing: Where FE is the extended address)
7E0#03 A9 81 52 (no extended addressing)
*/
void handle_gm_read_diag(int can, struct canfd_frame frame) {
if(verbose) plog("Received GM Read Diagnostic Request\n");
int offset = 0;
int i, total;
char resp[150];
if(frame.data[0] == 0xFE) offset = 1;
switch(frame.data[2 + offset]) { // Subfunctions
case UDS_READ_STATUS_BY_MASK: // Read DTCs by mask
if(verbose) {
plog(" + Read DTCs by mask\n");
if(frame.data[3 + offset] & DTC_SUPPORTED_BY_CALIBRATION) plog(" - Supported By Calibration\n");
if(frame.data[3 + offset] & DTC_CURRENT_DTC) plog(" - Current DTC\n");
if(frame.data[3 + offset] & DTC_TEST_NOT_PASSED_SINCE_CLEARED) plog(" - Tests not passed since DTC cleared\n");
if(frame.data[3 + offset] & DTC_TEST_FAILED_SINCE_CLEARED) plog(" - Tests failed since DTC cleared\n");
if(frame.data[3 + offset] & DTC_HISTORY) plog(" - DTC History\n");
if(frame.data[3 + offset] & DTC_TEST_NOT_PASSED_SINCE_POWER) plog(" - Tests not passed since power up\n");
if(frame.data[3 + offset] & DTC_CURRENT_DTC_SINCE_POWER) plog(" - Tests failed since power up\n");
if(frame.data[3 + offset] & DTC_WARNING_INDICATOR_STATE) plog(" - Warning Indicator State\n");
}
if(frame.can_id == 0x7e0) {
frame.can_id = 0x5e8;
} else {
frame.can_id = 0x500 + (frame.can_id & 0xFF);
}
frame.len = 8;
frame.data[0] = frame.data[2 + offset];
frame.data[1] = 0; // DTC 1st byte
frame.data[2] = 0x30; // DTC 2nd byte
frame.data[3] = 0;
frame.data[4] = 0x6F; // Last Test/ This Ignition/ Last Clear bitflag
frame.data[5] = 0;
frame.data[6] = 0;
frame.data[7] = 0;
write(can, &frame, CAN_MTU);
sleep(0.2); // Instead of actually processing the FC
if(fuzz_level == 1) {
total = rand() % 1024;
if(verbose) plog("Sending %d DTCs\n", total);
for(i = 0; i < total; i++) {
frame.data[1] = rand() % 256;
frame.data[2] = (rand() % 255) + 1;
frame.data[3] = 0;
frame.data[4] = 0x6F; // Last DTC
write(can, &frame, CAN_MTU);
sleep(1);
}
}
frame.data[1] = 0; // Last frame must be a 0 DTC
frame.data[2] = 0;
frame.data[3] = 0;
frame.data[4] = 0xFF; // Last DTC
write(can, &frame, CAN_MTU);
break;
default:
if(verbose) plog(" + Unknown subfunction request %02X\n", frame.data[2 + offset]);
break;
}
}
/*
Gateway
*/
void handle_vcds_710(int can, struct canfd_frame frame) {
if(verbose) plog("Received VCDS 0x710 gateway request\n");
char resp[150];
if(frame.data[0] == 0x30) { // Flow control
flow_control_push_to(can,0x77A);
return;
}
switch(frame.data[1]) {
//Pkt: 710#02 10 03 55 55 55 55 55
case 0x10: // Diagnostic Session Control
frame.can_id = 0x77A;
frame.len = 8;
frame.data[0] = 0x06;
frame.data[1] = 0x50;
frame.data[2] = 0x03;
frame.data[3] = 0x00;
frame.data[4] = 0x32;
frame.data[5] = 0x01;
frame.data[6] = 0xF4;
frame.data[7] = 0xAA;
write(can, &frame, CAN_MTU);
break;
case 0x22: // Read Data By Identifier
if(frame.data[2] == 0xF1) {
switch(frame.data[3]) {
case 0x87: // VAG Number
if(verbose) plog("Read data by ID 0x87\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x87;
resp[3] = 0x35;
resp[4] = 0x51;
resp[5] = 0x45;
resp[6] = 0x39;
resp[7] = 0x30;
resp[8] = 0x37;
resp[9] = 0x35;
resp[10] = 0x33;
resp[11] = 0x30;
resp[12] = 0x43;
resp[13] = 0x20; // Note normally this would pad with AA's
isotp_send_to(can, resp, 14, 0x77A);
break;
case 0x89: // VAG Number
if(verbose) plog("Read data by ID 0x89\n");
frame.can_id = 0x77A;
frame.len = 8;
frame.data[0] = 0x07;
frame.data[1] = 0x62;
frame.data[2] = 0xF1;
frame.data[3] = 0x89;
frame.data[4] = 0x33; //3
frame.data[5] = 0x32; //2
frame.data[6] = 0x30; //0
frame.data[7] = 0x33; //3
write(can, &frame, CAN_MTU);
break;
case 0x91: // VAG Number
if(verbose) plog("Read data by ID 0x91\n");
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x87;
resp[3] = 0x35;
resp[4] = 0x51;
resp[5] = 0x45;
resp[6] = 0x39;
resp[7] = 0x30;
resp[8] = 0x37;
resp[9] = 0x35;
resp[10] = 0x33;
resp[11] = 0x30;
resp[12] = 0x41;
resp[13] = 0x20; // Note normally this would pad with AA's
isotp_send_to(can, resp, 14, 0x77A);
break;
default:
if(verbose) plog("NOTE: Read data by unknown ID %02X\n", frame.data[3]);
resp[0] = frame.data[1] + 0x40;
resp[1] = frame.data[2];
resp[2] = 0x87;
resp[3] = 0x35;
resp[4] = 0x51;
resp[5] = 0x45;
resp[6] = 0x39;
resp[7] = 0x30;
resp[8] = 0x37;
resp[9] = 0x35;
resp[10] = 0x33;
resp[11] = 0x30;
resp[12] = 0x41;
resp[13] = 0x20; // Note normally this would pad with AA's
isotp_send_to(can, resp, 14, 0x77A);
break;
}
} else {
if (verbose) plog("Unknown read data by Identifier %02X\n", frame.data[2]);
}
break;
}
}
// return Mode/SIDs in english
char *get_mode_str(struct canfd_frame frame) {
switch(frame.data[1]) {
case OBD_MODE_SHOW_CURRENT_DATA:
return "Show current Data";
break;
case OBD_MODE_SHOW_FREEZE_FRAME:
return "Show freeze frame";
break;
case OBD_MODE_READ_DTC:
return "Read DTCs";
break;
case OBD_MODE_CLEAR_DTC:
return "Clear DTCs";
break;
case OBD_MODE_TEST_RESULTS_NON_CAN:
return "Mode Test Results (Non-CAN)";
break;
case OBD_MODE_TEST_RESULTS_CAN:
return "Mode Test Results (CAN)";
break;
case OBD_MODE_READ_PENDING_DTC:
return "Read Pending DTCs";
break;
case OBD_MODE_CONTROL_OPERATIONS:
return "Control Operations";
break;
case OBD_MODE_VEHICLE_INFORMATION:
return "Vehicle Information";
break;
case OBD_MODE_READ_PERM_DTC:
return "Read Permanent DTCs";
break;
case UDS_SID_DIAGNOSTIC_CONTROL:
return "Diagnostic Control";
break;
case UDS_SID_ECU_RESET:
return "ECU Reset";
break;
case UDS_SID_CLEAR_DTC:
return "UDS Clear DTCs";
break;
case UDS_SID_READ_DTC:
return "UDS Read DTCs";
break;
case UDS_SID_GM_READ_DID_BY_ID:
return "Read DID by ID (GM)";
break;
case UDS_SID_RESTART_COMMUNICATIONS:
return "Restore Normal Commnications";
break;
case UDS_SID_READ_DATA_BY_ID:
return "Read DATA By ID";
break;
case UDS_SID_READ_MEM_BY_ADDRESS:
return "Read Memory By Address";
break;
case UDS_SID_READ_SCALING_BY_ID:
return "Read Scalling Data by ID";
break;
case UDS_SID_SECURITY_ACCESS:
return "Security Access";
break;
case UDS_SID_COMMUNICATION_CONTROL:
return "Communication Control";
break;
case UDS_SID_READ_DATA_BY_ID_PERIODIC:
return "Read DATA By ID Periodically";
break;
case UDS_SID_DEFINE_DATA_ID:
return "Define DATA By ID";
break;
case UDS_SID_WRITE_DATA_BY_ID:
return "Write DATA By ID";
break;
case UDS_SID_IO_CONTROL_BY_ID:
return "Input/Output Control By ID";
break;
case UDS_SID_ROUTINE_CONTROL:
return "Routine Control";
break;
case UDS_SID_REQUEST_DOWNLOAD:
return "Request Download";
break;
case UDS_SID_REQUEST_UPLOAD:
return "Request Upload";
break;
case UDS_SID_TRANSFER_DATA:
return "Transfer DATA";
break;
case UDS_SID_REQUEST_XFER_EXIT:
return "Request Transfer Exit";
break;
case UDS_SID_REQUEST_XFER_FILE:
return "Request Transfer File";
break;
case UDS_SID_WRITE_MEM_BY_ADDRESS:
return "Write Memory By Address";
break;
case UDS_SID_TESTER_PRESENT:
return "Tester Present";
break;
case UDS_SID_ACCESS_TIMING:
return "Access Timing";
break;
case UDS_SID_SECURED_DATA_TRANS:
return "Secured DATA Transfer";
break;
case UDS_SID_CONTROL_DTC_SETTINGS:
return "Control DTC Settings";
break;
case UDS_SID_RESPONSE_ON_EVENT:
return "Response On Event";
break;
case UDS_SID_LINK_CONTROL:
return "Link Control";
break;
case UDS_SID_GM_PROGRAMMED_STATE:
return "Programmed State (GM)";
break;
case UDS_SID_GM_PROGRAMMING_MODE:
return "Programming Mode (GM)";
break;
case UDS_SID_GM_READ_DIAG_INFO:
return "Read Diagnostic Information (GM)";
break;
case UDS_SID_GM_READ_DATA_BY_ID:
return "Read DATA By ID (GM)";
break;
case UDS_SID_GM_DEVICE_CONTROL:
return "Device Control (GM)";
break;
default:
printf("Unknown mode/sid (%02X)\n", frame.data[1]);
return "";
}
}
// Prints raw packet in ID#DATA format
void print_pkt(struct canfd_frame frame) {
int i;
plog("Pkt: %02X#", frame.can_id);
for(i = 0; i < frame.len; i++) {
plog("%02X ", frame.data[i]);
}
plog("\n");
}
// Prints binary data in hex format
void print_bin(unsigned char *bin, int size) {
int i;
for(i = 0; i < size; i++) {
plog("%02X ", bin[i]);
}
plog("\n");
}
// Handles the incomming CAN Packets
// Each ID that deals with specific controllers a note is
// given where that info came from. There could be a lot of overlap
// and exceptions here. -- Craig
void handle_pkt(int can, struct canfd_frame frame) {
if(DEBUG) print_pkt(frame);
switch(frame.can_id) {
case 0x243: // EBCM / GM / Chevy Malibu 2006
switch(frame.data[1]) {
case UDS_SID_TESTER_PRESENT:
if(verbose > 1) plog("Received TesterPresent\n");
generic_OK_resp_to(can, frame, 0x643);
break;
case UDS_SID_GM_READ_DIAG_INFO:
handle_gm_read_diag(can, frame);
break;
default:
if(verbose) print_pkt(frame);
if(verbose) plog("Unhandled mode/sid: %s\n", get_mode_str(frame));
break;
}
break;
case 0x244: // Body Control Module / GM / Chevy Malibu 2006
if(frame.data[0] == 0x30) { // Flow control
flow_control_push_to(can, 0x644);
return;
}
switch(frame.data[1]) {
case UDS_SID_TESTER_PRESENT:
if(verbose > 1) plog("Received TesterPresent\n");
generic_OK_resp_to(can, frame, 0x644);
break;
case UDS_SID_GM_READ_DIAG_INFO:
handle_gm_read_diag(can, frame);
break;
case UDS_SID_GM_READ_DATA_BY_ID:
handle_gm_read_data_by_id(can, frame);
break;
case UDS_SID_GM_READ_DID_BY_ID:
handle_gm_read_did_by_id(can, frame);
break;
default:
if(verbose) print_pkt(frame);
if(verbose) plog("Unhandled mode/sid: %s\n", get_mode_str(frame));
break;
}
break;
case 0x24A: // Power Steering / GM / Chevy Malibu 2006
switch(frame.data[1]) {
default:
if(verbose) print_pkt(frame);
if(verbose) plog("Unhandled mode/sid: %s\n", get_mode_str(frame));
break;
}
break;
case 0x350: // Unsure. Seen RTRs to this when requesting VIN
if (frame.can_id & CAN_RTR_FLAG) {
if (verbose) plog("Received a RTR at ID %02X\n", frame.can_id);
}
break;
case 0x710: // VCDS
if(verbose) print_pkt(frame);
handle_vcds_710(can, frame);
break;
case 0x7df:
case 0x7e0: // Sometimes flow control comes here
if(verbose) print_pkt(frame);
if(frame.data[0] == 0x30 && gBufLengthRemaining > 0) flow_control_push(can);
if(frame.data[0] == 0 || frame.len == 0) return;
if(frame.data[0] > frame.len) return;
switch (frame.data[1]) {
case OBD_MODE_SHOW_CURRENT_DATA:
handle_current_data(can, frame);
break;
case OBD_MODE_SHOW_FREEZE_FRAME:
handle_freeze_frame(can, frame);
break;
case OBD_MODE_READ_DTC:
handle_stored_codes(can, frame);
break;
case OBD_MODE_READ_PENDING_DTC:
handle_pending_codes(can, frame);
break;
case OBD_MODE_VEHICLE_INFORMATION:
handle_vehicle_info(can, frame);
break;
case OBD_MODE_READ_PERM_DTC:
handle_perm_codes(can, frame);
break;
case UDS_SID_DIAGNOSTIC_CONTROL: // DSC
handle_dsc(can, frame);
break;
case UDS_SID_READ_DATA_BY_ID:
handle_read_data_by_id(can, frame);
break;
case UDS_SID_TESTER_PRESENT:
if(verbose > 1) plog("Received TesterPresent\n");
generic_OK_resp(can, frame);
break;
case UDS_SID_GM_READ_DIAG_INFO:
handle_gm_read_diag(can, frame);
break;
default:
//if(verbose) plog("Unhandled mode/sid: %02X\n", frame.data[1]);
if(verbose) plog("Unhandled mode/sid: %s\n", get_mode_str(frame));
break;
}
break;
default:
if (DEBUG) print_pkt(frame);
if (DEBUG) plog("DEBUG: missed ID %02X\n", frame.can_id);
break;
}
}
int main(int argc, char *argv[]) {
int opt, ret;
int can;
int nbytes;
struct ifreq ifr;
struct sockaddr_can addr;
struct iovec iov;
struct msghdr msg;
struct canfd_frame frame;
char ctrlmsg[CMSG_SPACE(sizeof(struct timeval)) + CMSG_SPACE(sizeof(__u32))];
struct sigaction act;
struct timeval timeo;
fd_set rdfs;
verbose = 0;
act.sa_handler = intHandler;
sigaction(SIGINT, &act, NULL);
sigaction(SIGHUP, &act, NULL);
srand(time(NULL));
while ((opt = getopt(argc, argv, "cV:zl:vFh?")) != -1) {
switch(opt) {
case 'c':
keep_spec = 1;
break;
case 'v':
verbose++;
break;
case 'V':
vin = optarg;
break;
case 'F':
no_flow_control = 1;
break;
case 'l':
plogfp = fopen(optarg, "a+");
break;
case 'z':
fuzz_level++;
break;
case 'h':
case '?':
default:
usage(argv[0], NULL);
break;
}
}
if (optind >= argc) usage(argv[0], "You must specify at least one can device");
// Create a new raw CAN socket
can = socket(PF_CAN, SOCK_RAW, CAN_RAW);
if(can < 0) usage(argv[0], "Couldn't create raw socket");
addr.can_family = AF_CAN;
memset(&ifr.ifr_name, 0, sizeof(ifr.ifr_name));
strncpy(ifr.ifr_name, argv[optind], strlen(argv[optind]));
if (verbose) plog("Using CAN interface %s\n", ifr.ifr_name);
if (ioctl(can, SIOCGIFINDEX, &ifr) < 0) {
perror("SIOCGIFINDEX");
exit(1);
}
addr.can_ifindex = ifr.ifr_ifindex;
if (bind(can, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
perror("bind");
return 1;
}
iov.iov_base = &frame;
iov.iov_len = sizeof(frame);
msg.msg_name = &addr;
msg.msg_namelen = sizeof(addr);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = &ctrlmsg;
msg.msg_controllen = sizeof(ctrlmsg);
msg.msg_flags = 0;
if(verbose) plog("Fuzz level set to: %d\n", fuzz_level);
gettimeofday(&start_tv, NULL);
running = 1;
while(running) {
FD_ZERO(&rdfs);
FD_SET(can, &rdfs);
timeo.tv_sec = 0;
timeo.tv_usec = 10000 * 20; // 20 ms
if ((ret = select(can+1, &rdfs, NULL, NULL, &timeo)) < 0) {
running = 0;
continue;
}
if (FD_ISSET(can, &rdfs)) {
nbytes = recvmsg(can, &msg, 0);
if (nbytes < 0) {
perror("read");
return 1;
}
if ((size_t)nbytes != CAN_MTU) {
fprintf(stderr, "read: incomplete CAN frame\n");
return 1;
}
handle_pkt(can, frame);
}
handle_pending_data(can);
}
plog("Got Interrupt. Shutting down gracefully\n");
if(plogfp) fclose(plogfp);
}
================================================
FILE: uds-server.h
================================================
/* (c) 2015 Open Garages */
/* Helper Macros */
#define SET_BIT(val, bitIndex) val |= (1 << bitIndex)
#define CLEAR_BIT(val, bitIndex) val &= ~(1 << bitIndex)
#define TOGGLE_BIT(val, bitIndex) val ^= (1 << bitIndex)
#define IS_SET(val, bitIndex) (val & (1 << bitIndex))
/* OBD-II Modes */
#define OBD_MODE_SHOW_CURRENT_DATA 0x01
#define OBD_MODE_SHOW_FREEZE_FRAME 0x02
#define OBD_MODE_READ_DTC 0x03
#define OBD_MODE_CLEAR_DTC 0x04
#define OBD_MODE_TEST_RESULTS_NON_CAN 0x05
#define OBD_MODE_TEST_RESULTS_CAN 0x06
#define OBD_MODE_READ_PENDING_DTC 0x07
#define OBD_MODE_CONTROL_OPERATIONS 0x08
#define OBD_MODE_VEHICLE_INFORMATION 0x09
#define OBD_MODE_READ_PERM_DTC 0x0A
/* UDS SIDs */
#define UDS_SID_DIAGNOSTIC_CONTROL 0x10 // GMLAN = Initiate Diagnostics
#define UDS_SID_ECU_RESET 0x11
#define UDS_SID_GM_READ_FAILURE_RECORD 0x12 // GMLAN
#define UDS_SID_CLEAR_DTC 0x14
#define UDS_SID_READ_DTC 0x19
#define UDS_SID_GM_READ_DID_BY_ID 0x1A // GMLAN - Read DID By ID
#define UDS_SID_RESTART_COMMUNICATIONS 0x20 // GMLAN - Restart a stopped com
#define UDS_SID_READ_DATA_BY_ID 0x22
#define UDS_SID_READ_MEM_BY_ADDRESS 0x23
#define UDS_SID_READ_SCALING_BY_ID 0x24
#define UDS_SID_SECURITY_ACCESS 0x27
#define UDS_SID_COMMUNICATION_CONTROL 0x28 // GMLAN Stop Communications
#define UDS_SID_READ_DATA_BY_ID_PERIODIC 0x2A
#define UDS_SID_DEFINE_DATA_ID 0x2C
#define UDS_SID_WRITE_DATA_BY_ID 0x2E
#define UDS_SID_IO_CONTROL_BY_ID 0x2F
#define UDS_SID_ROUTINE_CONTROL 0x31
#define UDS_SID_REQUEST_DOWNLOAD 0x34
#define UDS_SID_REQUEST_UPLOAD 0x35
#define UDS_SID_TRANSFER_DATA 0x36
#define UDS_SID_REQUEST_XFER_EXIT 0x37
#define UDS_SID_REQUEST_XFER_FILE 0x38
#define UDS_SID_WRITE_MEM_BY_ADDRESS 0x3D
#define UDS_SID_TESTER_PRESENT 0x3E
#define UDS_SID_ACCESS_TIMING 0x83
#define UDS_SID_SECURED_DATA_TRANS 0x84
#define UDS_SID_CONTROL_DTC_SETTINGS 0x85
#define UDS_SID_RESPONSE_ON_EVENT 0x86
#define UDS_SID_LINK_CONTROL 0x87
#define UDS_SID_GM_PROGRAMMED_STATE 0xA2
#define UDS_SID_GM_PROGRAMMING_MODE 0xA5
#define UDS_SID_GM_READ_DIAG_INFO 0xA9
#define UDS_SID_GM_READ_DATA_BY_ID 0xAA
#define UDS_SID_GM_DEVICE_CONTROL 0xAE
/* GM READ DIAG SUB FUNCS */
#define UDS_READ_STATUS_BY_MASK 0x81
/* DTC MASK Bitflags */
#define DTC_SUPPORTED_BY_CALIBRATION 1
#define DTC_CURRENT_DTC 2
#define DTC_TEST_NOT_PASSED_SINCE_CLEARED 4
#define DTC_TEST_FAILED_SINCE_CLEARED 8
#define DTC_HISTORY 16
#define DTC_TEST_NOT_PASSED_SINCE_POWER 32
#define DTC_CURRENT_DTC_SINCE_POWER 64
#define DTC_WARNING_INDICATOR_STATE 128
/* Periodic Data Message types */
#define PENDING_READ_DATA_BY_ID_GM 1
================================================
FILE: vintest.sh
================================================
./uds-server -v -V "PWN3D OP3N G4R4G3" can0