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Diffstat (limited to 'include/linux/filter.h')
-rw-r--r--include/linux/filter.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h
index a7e3c48d73a7..b885dcb7eaca 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -6,6 +6,7 @@
#include <linux/atomic.h>
#include <linux/compat.h>
+#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <uapi/linux/filter.h>
@@ -406,6 +407,18 @@ static inline u16 bpf_anc_helper(const struct sock_filter *ftest)
}
}
+void *bpf_internal_load_pointer_neg_helper(const struct sk_buff *skb,
+ int k, unsigned int size);
+
+static inline void *bpf_load_pointer(const struct sk_buff *skb, int k,
+ unsigned int size, void *buffer)
+{
+ if (k >= 0)
+ return skb_header_pointer(skb, k, size, buffer);
+
+ return bpf_internal_load_pointer_neg_helper(skb, k, size);
+}
+
#ifdef CONFIG_BPF_JIT
#include <stdarg.h>
#include <linux/linkage.h>