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_cgroup_link.c (422B)

      1// SPDX-License-Identifier: GPL-2.0
      2// Copyright (c) 2020 Facebook
      3#include <linux/bpf.h>
      4#include <bpf/bpf_helpers.h>
      5
      6int calls = 0;
      7int alt_calls = 0;
      8
      9SEC("cgroup_skb/egress")
     10int egress(struct __sk_buff *skb)
     11{
     12	__sync_fetch_and_add(&calls, 1);
     13	return 1;
     14}
     15
     16SEC("cgroup_skb/egress")
     17int egress_alt(struct __sk_buff *skb)
     18{
     19	__sync_fetch_and_add(&alt_calls, 1);
     20	return 1;
     21}
     22
     23char _license[] SEC("license") = "GPL";
     24