diff options
Diffstat (limited to 'net/can/gw.c')
| -rw-r--r-- | net/can/gw.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/can/gw.c b/net/can/gw.c index 574dda78eb0f..37a3efb7cc9d 100644 --- a/net/can/gw.c +++ b/net/can/gw.c @@ -52,6 +52,7 @@ #include <linux/skbuff.h> #include <linux/can.h> #include <linux/can/core.h> +#include <linux/can/skb.h> #include <linux/can/gw.h> #include <net/rtnetlink.h> #include <net/net_namespace.h> @@ -347,6 +348,13 @@ static void can_can_gw_rcv(struct sk_buff *skb, void *data) return; } + /* is sending the skb back to the incoming interface not allowed? */ + if (!(gwj->flags & CGW_FLAGS_CAN_IIF_TX_OK) && + skb_headroom(skb) == sizeof(struct can_skb_priv) && + (((struct can_skb_priv *)(skb->head))->ifindex == + gwj->dst.dev->ifindex)) + return; + /* * clone the given skb, which has not been done in can_rcv() * |