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-rw-r--r--include/linux/skbuff.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index dc0fca747c5e..638b0e004310 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -37,6 +37,7 @@
#include <net/flow_dissector.h>
#include <linux/splice.h>
#include <linux/in6.h>
+#include <linux/if_packet.h>
#include <net/flow.h>
/* The interface for checksum offload between the stack and networking drivers
@@ -881,6 +882,15 @@ static inline struct rtable *skb_rtable(const struct sk_buff *skb)
return (struct rtable *)skb_dst(skb);
}
+/* For mangling skb->pkt_type from user space side from applications
+ * such as nft, tc, etc, we only allow a conservative subset of
+ * possible pkt_types to be set.
+*/
+static inline bool skb_pkt_type_ok(u32 ptype)
+{
+ return ptype <= PACKET_OTHERHOST;
+}
+
void kfree_skb(struct sk_buff *skb);
void kfree_skb_list(struct sk_buff *segs);
void skb_tx_error(struct sk_buff *skb);