diff options
| author | Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be> | 2018-10-08 11:48:33 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2019-09-04 13:29:15 +0200 |
| commit | 9868b5d44f3df9dd75247acd23dddff0a42f79be (patch) | |
| tree | c12df929a819d45fab12295ea93c3c5d4d00aa10 /net/can/bcm.c | |
| parent | 4f746fb4951834ba71d590d430f27dee54f9d9a0 (diff) | |
| download | linux-9868b5d44f3df9dd75247acd23dddff0a42f79be.tar.gz linux-9868b5d44f3df9dd75247acd23dddff0a42f79be.tar.bz2 linux-9868b5d44f3df9dd75247acd23dddff0a42f79be.zip | |
can: introduce CAN_REQUIRED_SIZE macro
The size of this structure will be increased with J1939 support. To stay
binary compatible, the CAN_REQUIRED_SIZE macro is introduced for
existing CAN protocols.
Signed-off-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'net/can/bcm.c')
| -rw-r--r-- | net/can/bcm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/can/bcm.c b/net/can/bcm.c index 28fd1a1c8487..c96fa0f33db3 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -1294,7 +1294,7 @@ static int bcm_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) /* no bound device as default => check msg_name */ DECLARE_SOCKADDR(struct sockaddr_can *, addr, msg->msg_name); - if (msg->msg_namelen < sizeof(*addr)) + if (msg->msg_namelen < CAN_REQUIRED_SIZE(*addr, can_ifindex)) return -EINVAL; if (addr->can_family != AF_CAN) @@ -1536,7 +1536,7 @@ static int bcm_connect(struct socket *sock, struct sockaddr *uaddr, int len, struct net *net = sock_net(sk); int ret = 0; - if (len < sizeof(*addr)) + if (len < CAN_REQUIRED_SIZE(*addr, can_ifindex)) return -EINVAL; lock_sock(sk); |