1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <linux/bpf.h> 4 #include <bpf/bpf_helpers.h> 5 6 struct { 7 __uint(type, BPF_MAP_TYPE_DEVMAP); 8 __uint(max_entries, 8); 9 __uint(key_size, sizeof(int)); 10 __uint(value_size, sizeof(int)); 11 } tx_port SEC(".maps"); 12 13 SEC("redirect_map_0") 14 int xdp_redirect_map_0(struct xdp_md *xdp) 15 { 16 return bpf_redirect_map(&tx_port, 0, 0); 17 } 18 19 SEC("redirect_map_1") 20 int xdp_redirect_map_1(struct xdp_md *xdp) 21 { 22 return bpf_redirect_map(&tx_port, 1, 0); 23 } 24 25 SEC("redirect_map_2") 26 int xdp_redirect_map_2(struct xdp_md *xdp) 27 { 28 return bpf_redirect_map(&tx_port, 2, 0); 29 } 30 31 char _license[] SEC("license") = "GPL"; 32