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-rw-r--r--include/net/ip_tunnels.h11
-rw-r--r--include/net/vxlan.h1
2 files changed, 12 insertions, 0 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 540a4b4417bf..751646adc769 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -379,6 +379,17 @@ static inline u8 ip_tunnel_get_dsfield(const struct iphdr *iph,
return 0;
}
+static inline u8 ip_tunnel_get_ttl(const struct iphdr *iph,
+ const struct sk_buff *skb)
+{
+ if (skb->protocol == htons(ETH_P_IP))
+ return iph->ttl;
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ return ((const struct ipv6hdr *)iph)->hop_limit;
+ else
+ return 0;
+}
+
/* Propogate ECN bits out */
static inline u8 ip_tunnel_ecn_encap(u8 tos, const struct iphdr *iph,
const struct sk_buff *skb)
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index ad73d8b3fcc2..b99a02ae3934 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -262,6 +262,7 @@ struct vxlan_dev {
#define VXLAN_F_COLLECT_METADATA 0x2000
#define VXLAN_F_GPE 0x4000
#define VXLAN_F_IPV6_LINKLOCAL 0x8000
+#define VXLAN_F_TTL_INHERIT 0x10000
/* Flags that are used in the receive path. These flags must match in
* order for a socket to be shareable