bpf/progs/test_xdp_with_devmap_frags_helpers.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <linux/bpf.h>
0003 #include <bpf/bpf_helpers.h>
0004
0005 struct {
0006     __uint(type, BPF_MAP_TYPE_DEVMAP);
0007     __uint(key_size, sizeof(__u32));
0008     __uint(value_size, sizeof(struct bpf_devmap_val));
0009     __uint(max_entries, 4);
0010 } dm_ports SEC(".maps");
0011
0012 /* valid program on DEVMAP entry via SEC name;
0013  * has access to egress and ingress ifindex
0014  */
0015 SEC("xdp/devmap")
0016 int xdp_dummy_dm(struct xdp_md *ctx)
0017 {
0018     return XDP_PASS;
0019 }
0020
0021 SEC("xdp.frags/devmap")
0022 int xdp_dummy_dm_frags(struct xdp_md *ctx)
0023 {
0024     return XDP_PASS;
0025 }
0026
0027 char _license[] SEC("license") = "GPL";