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-rw-r--r--include/linux/skbuff.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 497412165b1..fa88b966cb8 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -32,6 +32,7 @@
#include <linux/hrtimer.h>
#include <linux/dma-mapping.h>
#include <linux/netdev_features.h>
+#include <net/flow_keys.h>
/* Don't change this without changing skb_csum_unnecessary! */
#define CHECKSUM_NONE 0
@@ -1559,6 +1560,19 @@ static inline void skb_set_transport_header(struct sk_buff *skb,
skb->transport_header += offset;
}
+static inline void skb_probe_transport_header(struct sk_buff *skb,
+ const int offset_hint)
+{
+ struct flow_keys keys;
+
+ if (skb_transport_header_was_set(skb))
+ return;
+ else if (skb_flow_dissect(skb, &keys))
+ skb_set_transport_header(skb, keys.thoff);
+ else
+ skb_set_transport_header(skb, offset_hint);
+}
+
static inline unsigned char *skb_network_header(const struct sk_buff *skb)
{
return skb->head + skb->network_header;