bpf: add XDP prog type for early driver filter

[deliverable/linux.git] / include / uapi / linux / bpf.h

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index c4d922439d20433cdeeb4828f2b87847e5f573f2..a51786566c2f118ce50480cb8b5ae7b5c01c83e0 100644 (file)
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -94,6 +94,7 @@ enum bpf_prog_type {
        BPF_PROG_TYPE_SCHED_CLS,
        BPF_PROG_TYPE_SCHED_ACT,
        BPF_PROG_TYPE_TRACEPOINT,
+       BPF_PROG_TYPE_XDP,
 };
 
 #define BPF_PSEUDO_MAP_FD      1
@@ -439,4 +440,23 @@ struct bpf_tunnel_key {
        __u32 tunnel_label;
 };
 
+/* User return codes for XDP prog type.
+ * A valid XDP program must return one of these defined values. All other
+ * return codes are reserved for future use. Unknown return codes will result
+ * in packet drop.
+ */
+enum xdp_action {
+       XDP_ABORTED = 0,
+       XDP_DROP,
+       XDP_PASS,
+};
+
+/* user accessible metadata for XDP packet hook
+ * new fields must be added to the end of this structure
+ */
+struct xdp_md {
+       __u32 data;
+       __u32 data_end;
+};
+
 #endif /* _UAPI__LINUX_BPF_H__ */