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_lirc_mode2_kern.c (567B)

      1// SPDX-License-Identifier: GPL-2.0
      2// test ir decoder
      3//
      4// Copyright (C) 2018 Sean Young <sean@mess.org>
      5
      6#include <linux/bpf.h>
      7#include <linux/lirc.h>
      8#include <bpf/bpf_helpers.h>
      9
     10SEC("lirc_mode2")
     11int bpf_decoder(unsigned int *sample)
     12{
     13	if (LIRC_IS_PULSE(*sample)) {
     14		unsigned int duration = LIRC_VALUE(*sample);
     15
     16		if (duration & 0x10000)
     17			bpf_rc_keydown(sample, 0x40, duration & 0xffff, 0);
     18		if (duration & 0x20000)
     19			bpf_rc_pointer_rel(sample, (duration >> 8) & 0xff,
     20					   duration & 0xff);
     21	}
     22
     23	return 0;
     24}
     25
     26char _license[] SEC("license") = "GPL";