diff options
Diffstat (limited to 'net/ipv6/tunnel6.c')
| -rw-r--r-- | net/ipv6/tunnel6.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv6/tunnel6.c b/net/ipv6/tunnel6.c index 5659b52284bd..0ef9a35798d1 100644 --- a/net/ipv6/tunnel6.c +++ b/net/ipv6/tunnel6.c @@ -19,11 +19,13 @@ * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> */ +#include <linux/icmpv6.h> #include <linux/init.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/netdevice.h> #include <linux/skbuff.h> +#include <net/ipv6.h> #include <net/protocol.h> #include <net/xfrm.h> @@ -87,10 +89,16 @@ static int tunnel6_rcv(struct sk_buff **pskb) struct sk_buff *skb = *pskb; struct xfrm6_tunnel *handler; + if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) + goto drop; + for (handler = tunnel6_handlers; handler; handler = handler->next) if (!handler->handler(skb)) return 0; + icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, skb->dev); + +drop: kfree_skb(skb); return 0; } |