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authorIngo Molnar <mingo@elte.hu>2008-06-25 12:28:47 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-25 12:28:47 +0200
commitf4628e644c34d9e6242ea18487b2ed58ee04e3eb (patch)
tree3e1cd355fb6959d5b9f569342e4533a48e53aa11 /drivers/net/tun.c
parentcb9aa97c21c59ad01c9514d7faf45dc166fba226 (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
Merge branch 'linus' into tracing/mmiotrace-mergefixupstip-tracing-mmiotrace-mergefixups-2008-06-25_10.28_Wed
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 0ce07a339c7e..7ab94c825b57 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -313,6 +313,21 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv,
switch (tun->flags & TUN_TYPE_MASK) {
case TUN_TUN_DEV:
+ if (tun->flags & TUN_NO_PI) {
+ switch (skb->data[0] & 0xf0) {
+ case 0x40:
+ pi.proto = htons(ETH_P_IP);
+ break;
+ case 0x60:
+ pi.proto = htons(ETH_P_IPV6);
+ break;
+ default:
+ tun->dev->stats.rx_dropped++;
+ kfree_skb(skb);
+ return -EINVAL;
+ }
+ }
+
skb_reset_mac_header(skb);
skb->protocol = pi.proto;
skb->dev = tun->dev;