3 files changed, 36 insertions, 3 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 9a904f63f8c1..5691fdc83819 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -96,6 +96,7 @@ enum bpf_return_type {
 struct bpf_func_proto {
 	u64 (*func)(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
 	bool gpl_only;
+	bool pkt_access;
 	enum bpf_return_type ret_type;
 	enum bpf_arg_type arg1_type;
 	enum bpf_arg_type arg2_type;
@@ -151,7 +152,8 @@ struct bpf_verifier_ops {
 	 */
 	bool (*is_valid_access)(int off, int size, enum bpf_access_type type,
 				enum bpf_reg_type *reg_type);
-
+	int (*gen_prologue)(struct bpf_insn *insn, bool direct_write,
+			    const struct bpf_prog *prog);
 	u32 (*convert_ctx_access)(enum bpf_access_type type, int dst_reg,
 				  int src_reg, int ctx_off,
 				  struct bpf_insn *insn, struct bpf_prog *prog);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 4c5662f05bda..c6dab3f7457c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -676,13 +676,23 @@ struct sk_buff {
 	 */
 	kmemcheck_bitfield_begin(flags1);
 	__u16			queue_mapping;
+
+/* if you move cloned around you also must adapt those constants */
+#ifdef __BIG_ENDIAN_BITFIELD
+#define CLONED_MASK	(1 << 7)
+#else
+#define CLONED_MASK	1
+#endif
+#define CLONED_OFFSET()		offsetof(struct sk_buff, __cloned_offset)
+
+	__u8			__cloned_offset[0];
 	__u8			cloned:1,
 				nohdr:1,
 				fclone:2,
 				peeked:1,
 				head_frag:1,
-				xmit_more:1;
-	/* one bit hole */
+				xmit_more:1,
+				__unused:1; /* one bit hole */
 	kmemcheck_bitfield_end(flags1);
 
 	/* fields enclosed in headers_start/headers_end are copied
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index f896dfac4ac0..e07432b9f8b8 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -398,6 +398,27 @@ enum bpf_func_id {
 	 */
 	BPF_FUNC_skb_change_tail,
 
+	/**
+	 * bpf_skb_pull_data(skb, len)
+	 * The helper will pull in non-linear data in case the
+	 * skb is non-linear and not all of len are part of the
+	 * linear section. Only needed for read/write with direct
+	 * packet access.
+	 * @skb: pointer to skb
+	 * @len: len to make read/writeable
+	 * Return: 0 on success or negative error
+	 */
+	BPF_FUNC_skb_pull_data,
+
+	/**
+	 * bpf_csum_update(skb, csum)
+	 * Adds csum into skb->csum in case of CHECKSUM_COMPLETE.
+	 * @skb: pointer to skb
+	 * @csum: csum to add
+	 * Return: csum on success or negative error
+	 */
+	BPF_FUNC_csum_update,
+
 	__BPF_FUNC_MAX_ID,
 };