diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2013-09-04 12:49:39 +0400 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2013-09-04 12:49:57 +0400 |
| commit | efd15f5f4ff63f6ac5d80850686e3d2cc8c4481b (patch) | |
| tree | 40024adbe77a3d660662e639fd765097133d648c /net/ipv4/ipip.c | |
| parent | 6c2794a2984f4c17a58117a68703cc7640f01c5a (diff) | |
| parent | 58c59bc997d86593f0bea41845885917cf304d22 (diff) | |
| download | linux-efd15f5f4ff63f6ac5d80850686e3d2cc8c4481b.tar.xz | |
Merge branch 'master' into for-3.12/upstream
Sync with Linus' tree to be able to apply fixup patch on top
of 9d9a04ee75 ("HID: apple: Add support for the 2013 Macbook Air")
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/ipv4/ipip.c')
| -rw-r--r-- | net/ipv4/ipip.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index 77bfcce64fe5..51fc2a1dcdd3 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -188,8 +188,12 @@ static int ipip_rcv(struct sk_buff *skb) struct net *net = dev_net(skb->dev); struct ip_tunnel_net *itn = net_generic(net, ipip_net_id); struct ip_tunnel *tunnel; - const struct iphdr *iph = ip_hdr(skb); + const struct iphdr *iph; + if (iptunnel_pull_header(skb, 0, tpi.proto)) + goto drop; + + iph = ip_hdr(skb); tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY, iph->saddr, iph->daddr, 0); if (tunnel) { @@ -222,7 +226,7 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev) skb->encapsulation = 1; } - ip_tunnel_xmit(skb, dev, tiph); + ip_tunnel_xmit(skb, dev, tiph, tiph->protocol); return NETDEV_TX_OK; tx_error: @@ -240,11 +244,13 @@ ipip_tunnel_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p))) return -EFAULT; - if (p.iph.version != 4 || p.iph.protocol != IPPROTO_IPIP || - p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF))) - return -EINVAL; - if (p.i_key || p.o_key || p.i_flags || p.o_flags) - return -EINVAL; + if (cmd == SIOCADDTUNNEL || cmd == SIOCCHGTUNNEL) { + if (p.iph.version != 4 || p.iph.protocol != IPPROTO_IPIP || + p.iph.ihl != 5 || (p.iph.frag_off&htons(~IP_DF))) + return -EINVAL; + } + + p.i_key = p.o_key = p.i_flags = p.o_flags = 0; if (p.iph.ttl) p.iph.frag_off |= htons(IP_DF); |