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8 Commits
Author SHA1 Message Date
Oliver Hartkopp 13dc8e9cc5 isobusfs: srv: check name length against the received message length 
The Change Current Directory and Volume Status requests used the path
and volume name length from the request without checking it against
the received message length. Short messages with a big name length made
the server process stale content of the receive buffer as path or
volume name.

Check the name length against the message length, use le16toh() for the
CCD name length and fix the debug output of the volume name.

Assisted-by: Claude:claude-opus-5-5
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
 2026-10-14 10:21:56 +00:00
Oleksij Rempel af95ee0c6d move part of isobusfs code to the libj1939 
Move part of isobusfs which can be reused by other applications to the
libj1939. By the way, reuse some of new libj1939 code in the j1939cat.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
 2024-06-06 13:53:19 +02:00
Oleksij Rempel 06ab86226a isobusfs_srv_cm: do not try to add padding beyond the buffer 
The memset in isobusfs_srv_volume_status_resp() was attempting to make a
padding beyond the buffer. Fix it.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
 2024-05-25 07:57:16 +02:00
Oleksij Rempel fc742c574e isobusfs_srv_cm: make sure we do le16toh/htole16 conversation for name_len 
name_len is __le16. We need always convert it to host byte order.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
 2024-05-25 07:57:16 +02:00
Oliver HartkoppandGitHub 8d7d7650d4 can-utils: fix sign-compare warnings (#513) 
Fixing several build issues reported by Gary Bisson when he was building
can-utils with clang (AOSP14).

URL: https://github.com/linux-can/can-utils/pull/512
Reported-by: Gary Bisson (https://github.com/gibsson)

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
 2024-04-24 20:02:02 +02:00
Gennadij Sergej Yatskov 5bebe13cc1 Fixes musl build for ARMv7 
See also 0e0a033
 2024-02-20 11:06:13 +01:00
Oleksij Rempel 939e4d7e8c isobusfs: change license to LGPL-2.0-only 
Before more contributions will come, change the license and make this
project usable as a library.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
 2024-02-04 19:15:25 +01:00
Oleksij RempelandOleksij Rempel 42edaeaf52 Implement ISOBUS File Server (FS) Interface as a Personal Project 
Introduce the ISOBUS File Server (FS) interface, compatible with ISO
11783-13. The implementation utilizes the kernel's existing CAN J1939
socket support.

For testing following setup can be used:
ip link add type vcan
ip l s dev vcan0 up

j1939acd -r 64-95 -c /tmp/1122334455667788.jacd 1122334455667788 vcan0 &
j1939acd -r 96-127 -c /tmp/1122334455667789.jacd 1122334455667789 vcan0 &

sleep 1

isobusfs-srv -i vcan0 -n 1122334455667788 -v vol1:/path/to/export/
isobusfs-cli -i vcan0 -n 0x1122334455667789 -m 0x1122334455667788 -I

Interactive mode currently support following commands:
exit - exit interactive mode
quit - exit interactive mode
help - show this help
dmesg - show log buffer
selftest - run selftest
ls - list directory
ll - list directory with long listing format
cd - change directory
pwd - print name of current/working directory
get - get file

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
 2024-02-02 13:44:07 +01:00