summaryrefslogtreecommitdiff
path: root/drivers/net/tun.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2017-10-06 03:57:03 +0300
committerDavid S. Miller <davem@davemloft.net>2017-10-06 04:19:22 +0300
commit53954cf8c5d205624167a2bfd117cc0c1a5f3c6d (patch)
treea287f0c80eb616758bb5212523c8fb3d8fc350a4 /drivers/net/tun.c
parent4b54db1375757aa3e870c075065a8ab9350d26c4 (diff)
parent7a92616c0bac849e790283723b36c399668a1d9f (diff)
downloadlinux-53954cf8c5d205624167a2bfd117cc0c1a5f3c6d.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Just simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r--drivers/net/tun.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index a6e0bffe3d29..57e4c31fa84a 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1676,11 +1676,13 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
switch (tun->flags & TUN_TYPE_MASK) {
case IFF_TUN:
if (tun->flags & IFF_NO_PI) {
- switch (skb->data[0] & 0xf0) {
- case 0x40:
+ u8 ip_version = skb->len ? (skb->data[0] >> 4) : 0;
+
+ switch (ip_version) {
+ case 4:
pi.proto = htons(ETH_P_IP);
break;
- case 0x60:
+ case 6:
pi.proto = htons(ETH_P_IPV6);
break;
default: