linux-stable/net/can
Oliver Hartkopp b184a8fa7d can: isotp: support MSG_TRUNC flag when reading from socket
[ Upstream commit 42bf50a179 ]

When providing the MSG_TRUNC flag via recvmsg() syscall the return value
provides the real length of the packet or datagram, even when it was longer
than the passed buffer.

Fixes: e057dd3fc2 ("can: add ISO 15765-2:2016 transport protocol")
Link: https://github.com/linux-can/can-utils/issues/347#issuecomment-1065932671
Link: https://lore.kernel.org/all/20220316164258.54155-3-socketcan@hartkopp.net
Suggested-by: Derek Will <derekrobertwill@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:41 +02:00
..
j1939 net-timestamp: convert sk->sk_tskey to atomic_t 2022-03-02 11:48:01 +01:00
af_can.c net: introduce CAN specific pointer in the struct net_device 2021-02-24 14:32:15 -08:00
af_can.h
bcm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-06-29 15:45:27 -07:00
gw.c can: gw: synchronize rcu operations before removing gw job entry 2021-06-19 23:53:43 +02:00
isotp.c can: isotp: support MSG_TRUNC flag when reading from socket 2022-04-08 14:23:41 +02:00
Kconfig net: remove redundant 'depends on NET' 2021-01-27 17:04:12 -08:00
Makefile
proc.c can: proc: remove unnecessary variables 2021-05-27 09:42:21 +02:00
raw.c net: Remove redundant if statements 2021-08-05 13:27:50 +01:00