162306a36Sopenharmony_ci#!/bin/bash
262306a36Sopenharmony_ci# SPDX-License-Identifier: GPL-2.0
362306a36Sopenharmony_ci
462306a36Sopenharmony_ci# Kselftest framework requirement - SKIP code is 4.
562306a36Sopenharmony_ciksft_skip=4
662306a36Sopenharmony_ci
762306a36Sopenharmony_ciDBGFS=/sys/kernel/debug/damon
862306a36Sopenharmony_ci
962306a36Sopenharmony_ciif [ $EUID -ne 0 ];
1062306a36Sopenharmony_cithen
1162306a36Sopenharmony_ci	echo "Run as root"
1262306a36Sopenharmony_ci	exit $ksft_skip
1362306a36Sopenharmony_cifi
1462306a36Sopenharmony_ci
1562306a36Sopenharmony_ciif [ ! -d "$DBGFS" ]
1662306a36Sopenharmony_cithen
1762306a36Sopenharmony_ci	echo "$DBGFS not found"
1862306a36Sopenharmony_ci	exit $ksft_skip
1962306a36Sopenharmony_cifi
2062306a36Sopenharmony_ci
2162306a36Sopenharmony_cifor f in attrs target_ids monitor_on
2262306a36Sopenharmony_cido
2362306a36Sopenharmony_ci	if [ ! -f "$DBGFS/$f" ]
2462306a36Sopenharmony_ci	then
2562306a36Sopenharmony_ci		echo "$f not found"
2662306a36Sopenharmony_ci		exit 1
2762306a36Sopenharmony_ci	fi
2862306a36Sopenharmony_cidone
2962306a36Sopenharmony_ci
3062306a36Sopenharmony_cipermission_error="Operation not permitted"
3162306a36Sopenharmony_cifor f in attrs target_ids monitor_on
3262306a36Sopenharmony_cido
3362306a36Sopenharmony_ci	status=$( cat "$DBGFS/$f" 2>&1 )
3462306a36Sopenharmony_ci	if [ "${status#*$permission_error}" != "$status" ]; then
3562306a36Sopenharmony_ci		echo "Permission for reading $DBGFS/$f denied; maybe secureboot enabled?"
3662306a36Sopenharmony_ci		exit $ksft_skip
3762306a36Sopenharmony_ci	fi
3862306a36Sopenharmony_cidone
39