redonkable/remarkable-linux
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gre: Set inner protocol in v4 and v6 GRE transmit

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Call skb_set_inner_protocol to set inner Ethernet protocol to
protocol being encapsulation by GRE before tunnel_xmit. This is
needed for GSO if UDP encapsulation (fou) is being done.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2014-09-29 20:22:32 -07:00 committed by David S. Miller
parent 077c5a0948
commit 54bc9bac30
2 changed files with 8 additions and 2 deletions
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2
net/ipv4/ip_gre.c
View file

@ -241,6 +241,8 @@ static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
/* Push GRE header. */
gre_build_header(skb, &tpi, tunnel->tun_hlen);
skb_set_inner_protocol(skb, tpi.proto);
ip_tunnel_xmit(skb, dev, tnl_params, tnl_params->protocol);
}

8
net/ipv6/ip6_gre.c
View file

@ -616,6 +616,7 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
int err = -1;
u8 proto;
struct sk_buff *new_skb;
__be16 protocol;
if (dev->type == ARPHRD_ETHER)
IPCB(skb)->flags = 0;
@ -732,8 +733,9 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
ipv6h->daddr = fl6->daddr;
((__be16 *)(ipv6h + 1))[0] = tunnel->parms.o_flags;
((__be16 *)(ipv6h + 1))[1] = (dev->type == ARPHRD_ETHER) ?
htons(ETH_P_TEB) : skb->protocol;
protocol = (dev->type == ARPHRD_ETHER) ?
htons(ETH_P_TEB) : skb->protocol;
((__be16 *)(ipv6h + 1))[1] = protocol;
if (tunnel->parms.o_flags&(GRE_KEY|GRE_CSUM|GRE_SEQ)) {
__be32 *ptr = (__be32 *)(((u8 *)ipv6h) + tunnel->hlen - 4);
@ -754,6 +756,8 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
}
}
skb_set_inner_protocol(skb, protocol);
ip6tunnel_xmit(skb, dev);
if (ndst)
ip6_tnl_dst_store(tunnel, ndst);