1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <linux/bpf.h> 4 #include <bpf/bpf_helpers.h> 5 6 #define IFINDEX_LO 1 7 8 struct { 9 __uint(type, BPF_MAP_TYPE_CPUMAP); 10 __uint(key_size, sizeof(__u32)); 11 __uint(value_size, sizeof(struct bpf_cpumap_val)); 12 __uint(max_entries, 4); 13 } cpu_map SEC(".maps"); 14 15 SEC("xdp/cpumap") xdp_dummy_cm(struct xdp_md * ctx)16int xdp_dummy_cm(struct xdp_md *ctx) 17 { 18 return XDP_PASS; 19 } 20 21 SEC("xdp.frags/cpumap") xdp_dummy_cm_frags(struct xdp_md * ctx)22int xdp_dummy_cm_frags(struct xdp_md *ctx) 23 { 24 return XDP_PASS; 25 } 26 27 char _license[] SEC("license") = "GPL"; 28