static const struct gre_protocol __rcu *gre_proto[GREPROTO_MAX] __read_mostly;
static DEFINE_SPINLOCK(gre_proto_lock);
-struct gre_base_hdr {
- __be16 flags;
- __be16 protocol;
-};
-#define GRE_HEADER_SECTION 4
int gre_add_protocol(const struct gre_protocol *proto, u8 version)
{
int ghl = GRE_HEADER_SECTION;
struct gre_base_hdr *greh;
int mac_len = skb->mac_len;
+ __be16 protocol = skb->protocol;
int tnl_hlen;
bool csum;
/* setup inner skb. */
if (greh->protocol == htons(ETH_P_TEB)) {
- struct ethhdr *eth = eth_hdr(skb);
+ struct ethhdr *eth = (struct ethhdr *)skb_inner_mac_header(skb);
skb->protocol = eth->h_proto;
} else {
skb->protocol = greh->protocol;
skb_reset_mac_header(skb);
skb_set_network_header(skb, mac_len);
skb->mac_len = mac_len;
+ skb->protocol = protocol;
} while ((skb = skb->next));
out:
return segs;