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Linux-CAN / SocketCAN user space applications
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Jeroen Hofstee 3bb412e072 lib: fix seperator in snprintf_error_data 
When multiple error flags are set, snprintf_error_data created a comma
seperated textual presentation of it. Commit ef853f5553 ("added return value
check of snprintf to prevent possible buffer overflows detected by CodeQL")
removed the increment of count, so the delimiter is no longer added. Fix this
by incrementing count again.

Fixes: Commit ef853f5553 ("added return value check of snprintf to prevent possible buffer overflows detected by CodeQL")
Signed-off-by: Jeroen Hofstee <jhofstee@victronenergy.com>
 		2022-08-17 16:57:26 +02:00
.github/workflows Create codeql-analysis.yml 2022-06-13 17:42:33 +02:00
LICENSES Add license texts as files 2019-09-26 15:45:43 +02:00
calc-bit-timing can-calc-bit-timing: import bit timing calculation algorithm from v5.19 2022-08-11 22:42:16 +02:00
cmake CMake first pass (#90) 2018-08-17 09:50:30 +02:00
config/m4 add autotools infrastructure 2010-04-19 12:12:18 +00:00
include/linux isotpsend: add support for transmission without flow control 2022-05-13 20:00:45 +02:00
mcp251xfd mcp251xfd-dump: add dump for IOCON register 2022-02-09 08:29:53 +01:00
.gitignore can-calc-bit-timing: move into subdir 2022-08-11 20:34:40 +02:00
.travis.yml travis: fix env for ppc64le 2020-10-19 14:37:30 +02:00
Android.mk Android.mk: fix compilation of can-calc-bit-timing 2022-08-17 09:07:01 +02:00
CMakeLists.txt CMakeLists: fix compilation of can-calc-bit-timing 2022-08-17 11:39:16 +02:00
GNUmakefile.am can-calc-bit-timing: import bit timing calculation algorithm from v5.19 2022-08-11 22:42:16 +02:00
Makefile can-calc-bit-timing: move into subdir 2022-08-11 20:34:40 +02:00
README.md Merge branch 'cansequence' of github.com:marckleinebudde/can-utils into master 2020-10-19 13:44:16 +02:00
asc2log.c fixed signed integer overflow in asc2log.c:100 2022-06-13 17:42:33 +02:00
autogen.sh do not use --symlink for autoreconf 2014-07-02 16:03:34 +02:00
bcmserver.c custom if statement reordering 2020-10-12 23:48:38 -07:00
can-j1939-install-kernel-module.md can utils [can-j1939-install-kernel-module.md]: better explanation for adding backports, fixed typos and grammar (#247) 2020-10-06 15:33:57 +02:00
can-j1939-kickstart.md can-j1939-kickstart.md: fix example in documentation 2020-05-30 19:32:32 +02:00
can-j1939.md Fix spelling in various files 2019-11-11 14:21:49 +01:00
canbusload.c canbusload: count databitrate seperately 2021-06-24 14:44:50 +02:00
candump.c candump: handle individual logfile name for stdout 2022-03-25 15:15:57 +01:00
canfdtest.c canfdtest: Add message length support 2022-06-27 23:49:02 +02:00
canframelen.c canbusload: count databitrate seperately 2021-06-24 14:44:50 +02:00
canframelen.h canbusload: count databitrate seperately 2021-06-24 14:44:50 +02:00
cangen.c cangen: Do not treat -EINTR as error 2022-01-27 15:53:10 +01:00
cangw.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
canlogserver.c docs: fix simple typo, cought -> caught 2020-12-06 17:31:33 +11:00
canplayer.c canplayer: introduce option to limit the number of processed frames 2021-10-30 13:02:42 +02:00
cansend.c can: rename CAN FD related can_len2dlc and can_dlc2len helpers 2020-11-22 19:54:58 +01:00
cansequence.c cansequence: exit program with failure in case of poll timeout 2022-01-27 15:53:10 +01:00
cansniffer.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
configure.ac mcp251xfd-dump: add tool to decode chip and driver state of mcp251xfd 2021-02-13 23:36:43 +01:00
isotpdump.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
isotpperf.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
isotprecv.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
isotpsend.c isotpsend: add support for transmission without flow control 2022-05-13 20:00:45 +02:00
isotpserver.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
isotpsniffer.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
isotptun.c remove obsolete char pointer casts 2022-03-14 18:21:45 +01:00
j1939acd.c make struct initialization C99 compatible again 2020-10-14 13:29:13 +02:00
j1939cat.c j1939cat: fix error detection of poll function call 2022-01-27 15:53:10 +01:00
j1939spy.c clang-tidy: sort includes alphabetically 2020-10-12 23:28:58 -07:00
j1939sr.c clang-tidy: sort includes alphabetically 2020-10-12 23:28:58 -07:00
lib.c lib: fix seperator in snprintf_error_data 2022-08-17 16:57:26 +02:00
lib.h can: rename CAN FD related can_len2dlc and can_dlc2len helpers 2020-11-22 19:54:58 +01:00
libj1939.c clang-tidy: sort includes alphabetically 2020-10-12 23:28:58 -07:00
libj1939.h libj1939.h: fix typo 2022-01-03 10:58:05 +01:00
log2asc.c log asc converter: support len8_dlc for Classical CAN frames part 2 2022-05-01 13:47:57 +02:00
log2long.c clang-tidy: sort includes alphabetically 2020-10-12 23:28:58 -07:00
page.theme import sample program & help page 2013-11-20 11:14:44 +01:00
slcan_attach.c closes #master: Fixed typo erros in slcan and testj1939 2022-02-01 19:55:27 +05:30
slcand.c clang-tidy: sort includes alphabetically 2020-10-12 23:28:58 -07:00
slcanpty.c can-utils: check for return values of if_nametoindex() 2021-10-18 09:37:46 +02:00
style.css import sample program & help page 2013-11-20 11:14:44 +01:00
terminal.h Add SPDX identifiers 2019-06-19 12:24:24 +02:00
testj1939.c closes #master: Fixed typo erros in slcan and testj1939 2022-02-01 19:55:27 +05:30

README.md

SocketCAN logo

SocketCAN userspace utilities and tools

This repository contains some userspace utilities for Linux CAN subsystem (aka SocketCAN):

Basic tools to display, record, generate and replay CAN traffic

  • candump : display, filter and log CAN data to files
  • canplayer : replay CAN logfiles
  • cansend : send a single frame
  • cangen : generate (random) CAN traffic
  • cansequence : send and check sequence of CAN frames with incrementing payload
  • cansniffer : display CAN data content differences

CAN access via IP sockets

  • canlogserver : log CAN frames from a remote/local host
  • bcmserver : interactive BCM configuration (remote/local)
  • socketcand : use RAW/BCM/ISO-TP sockets via TCP/IP sockets
  • cannelloni : UDP/SCTP based SocketCAN tunnel

CAN in-kernel gateway configuration

  • cangw : CAN gateway userspace tool for netlink configuration

CAN bus measurement and testing

  • canbusload : calculate and display the CAN busload
  • can-calc-bit-timing : userspace version of in-kernel bitrate calculation
  • canfdtest : Full-duplex test program (DUT and host part)

ISO-TP tools ISO15765-2:2016 for Linux

  • isotpsend : send a single ISO-TP PDU
  • isotprecv : receive ISO-TP PDU(s)
  • isotpsniffer : 'wiretap' ISO-TP PDU(s)
  • isotpdump : 'wiretap' and interpret CAN messages (CAN_RAW)
  • isotpserver : IP server for simple TCP/IP <-> ISO 15765-2 bridging (ASCII HEX)
  • isotpperf : ISO15765-2 protocol performance visualisation
  • isotptun : create a bi-directional IP tunnel on CAN via ISO-TP

J1939/ISOBus tools

  • j1939acd : address claim daemon
  • j1939cat : take a file and send and receive it over CAN
  • j1939spy : spy on J1939 messages using SOC_J1939
  • j1939sr : send/recv from stdin or to stdout
  • testj1939 : send/receive test packet

Follow the link to see examples on how this tools can be used: Kickstart guide to can-j1939 on linux

Log file converters

  • asc2log : convert ASC logfile to compact CAN frame logfile
  • log2asc : convert compact CAN frame logfile to ASC logfile
  • log2long : convert compact CAN frame representation into user readable

Serial Line Discipline configuration (for slcan driver)

  • slcan_attach : userspace tool for serial line CAN interface configuration
  • slcand : daemon for serial line CAN interface configuration
  • slcanpty : creates a pty for applications using the slcan ASCII protocol

CMake Project Generator

  • Place your build folder anywhere, passing CMake the path. Relative or absolute.
  • Some examples using a build folder under the source tree root:
  • Android : cmake -DCMAKE_TOOLCHAIN_FILE=~/Android/Sdk/ndk-bundle/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=android-21 -DANDROID_ABI=armeabi-v7a .. && make
  • Android Studio : Copy repo under your project's app folder, add add_subdirectory(can-utils) to your CMakeLists.txt file after cmake_minimum_required(). Generating project will build Debug/Release for all supported EABI types. ie. arm64-v8a, armeabi-v7a, x86, x86_64.
  • Raspberry Pi : cmake -DCMAKE_TOOLCHAIN_FILE=~/rpi/tools/build/cmake/rpi.toolchain.cmake .. && make
  • Linux : cmake -GNinja .. && ninja
  • Linux Eclipse Photon (Debug) : CC=clang cmake -G"Eclipse CDT4 - Unix Makefiles" ../can-utils/ -DCMAKE_BUILD_TYPE=Debug -DCMAKE_ECLIPSE_VERSION=4.8.0
  • To override the base installation directory use: CMAKE_INSTALL_PREFIX ie. CC=clang cmake -DCMAKE_INSTALL_PREFIX=./out .. && make install

Additional Information: