cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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test_xdp_with_devmap_frags_helpers.c (574B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <linux/bpf.h>
      3#include <bpf/bpf_helpers.h>
      4
      5struct {
      6	__uint(type, BPF_MAP_TYPE_DEVMAP);
      7	__uint(key_size, sizeof(__u32));
      8	__uint(value_size, sizeof(struct bpf_devmap_val));
      9	__uint(max_entries, 4);
     10} dm_ports SEC(".maps");
     11
     12/* valid program on DEVMAP entry via SEC name;
     13 * has access to egress and ingress ifindex
     14 */
     15SEC("xdp/devmap")
     16int xdp_dummy_dm(struct xdp_md *ctx)
     17{
     18	return XDP_PASS;
     19}
     20
     21SEC("xdp.frags/devmap")
     22int xdp_dummy_dm_frags(struct xdp_md *ctx)
     23{
     24	return XDP_PASS;
     25}
     26
     27char _license[] SEC("license") = "GPL";