linux/net/can
Oliver Hartkopp 1a620a7238 can: raw: instantly reject unsupported CAN frames
For real CAN interfaces the CAN_CTRLMODE_FD and CAN_CTRLMODE_XL control
modes indicate whether an interface can handle those CAN FD/XL frames.

In the case a CAN XL interface is configured in CANXL-only mode with
disabled error-signalling neither CAN CC nor CAN FD frames can be sent.

The checks are performed on CAN_RAW sockets to give an instant feedback
to the user when writing unsupported CAN frames to the interface.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://patch.msgid.link/20251126-canxl-v8-16-e7e3eb74f889@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2025-11-26 11:20:44 +01:00
..
j1939 net: Convert proto_ops connect() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
Kconfig
Makefile
af_can.c can: annotate mtu accesses with READ_ONCE() 2025-09-23 10:04:58 +02:00
af_can.h can: statistics: use atomic access in hot path 2025-03-14 09:47:00 +01:00
bcm.c net: Convert proto_ops connect() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
gw.c can: gw: fix RCU/BH usage in cgw_create_job() 2025-05-06 15:55:36 +02:00
isotp.c net: Convert proto_ops bind() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
proc.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
raw.c can: raw: instantly reject unsupported CAN frames 2025-11-26 11:20:44 +01:00