#!/bin/bash# SPDX-License-Identifier: GPL-2.0# Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com> . $(dirname $0)/functions.sh MOD_LIVEPATCH=test_klp_livepatchMOD_REPLACE=test_klp_atomic_replace setup_config  # - load a livepatch that modifies the output from /proc/cmdline and#   verify correct behavior# - unload the livepatch and make sure the patch was removed start_test "basic function patching" load_lp $MOD_LIVEPATCH if [[ "$(cat /proc/cmdline)" != "$MOD_LIVEPATCH: this has been live patched" ]] ; then	echo -e "FAIL\n\n"	die "livepatch kselftest(s) failed"fi disable_lp $MOD_LIVEPATCHunload_lp $MOD_LIVEPATCH if [[ "$(cat /proc/cmdline)" == "$MOD_LIVEPATCH: this has been live patched" ]] ; then	echo -e "FAIL\n\n"	die "livepatch kselftest(s) failed"fi check_result "% modprobe $MOD_LIVEPATCHlivepatch: enabling patch '$MOD_LIVEPATCH'livepatch: '$MOD_LIVEPATCH': initializing patching transitionlivepatch: '$MOD_LIVEPATCH': starting patching transitionlivepatch: '$MOD_LIVEPATCH': completing patching transitionlivepatch: '$MOD_LIVEPATCH': patching complete% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabledlivepatch: '$MOD_LIVEPATCH': initializing unpatching transitionlivepatch: '$MOD_LIVEPATCH': starting unpatching transitionlivepatch: '$MOD_LIVEPATCH': completing unpatching transitionlivepatch: '$MOD_LIVEPATCH': unpatching complete% rmmod $MOD_LIVEPATCH"  # - load a livepatch that modifies the output from /proc/cmdline and#   verify correct behavior# - load another livepatch and verify that both livepatches are active# - unload the second livepatch and verify that the first is still active# - unload the first livepatch and verify none are active start_test "multiple livepatches" load_lp $MOD_LIVEPATCH grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg load_lp $MOD_REPLACE replace=0 grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg disable_lp $MOD_REPLACEunload_lp $MOD_REPLACE grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg disable_lp $MOD_LIVEPATCHunload_lp $MOD_LIVEPATCH grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg check_result "% modprobe $MOD_LIVEPATCHlivepatch: enabling patch '$MOD_LIVEPATCH'livepatch: '$MOD_LIVEPATCH': initializing patching transitionlivepatch: '$MOD_LIVEPATCH': starting patching transitionlivepatch: '$MOD_LIVEPATCH': completing patching transitionlivepatch: '$MOD_LIVEPATCH': patching complete$MOD_LIVEPATCH: this has been live patched% modprobe $MOD_REPLACE replace=0livepatch: enabling patch '$MOD_REPLACE'livepatch: '$MOD_REPLACE': initializing patching transitionlivepatch: '$MOD_REPLACE': starting patching transitionlivepatch: '$MOD_REPLACE': completing patching transitionlivepatch: '$MOD_REPLACE': patching complete$MOD_LIVEPATCH: this has been live patched$MOD_REPLACE: this has been live patched% echo 0 > /sys/kernel/livepatch/$MOD_REPLACE/enabledlivepatch: '$MOD_REPLACE': initializing unpatching transitionlivepatch: '$MOD_REPLACE': starting unpatching transitionlivepatch: '$MOD_REPLACE': completing unpatching transitionlivepatch: '$MOD_REPLACE': unpatching complete% rmmod $MOD_REPLACE$MOD_LIVEPATCH: this has been live patched% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabledlivepatch: '$MOD_LIVEPATCH': initializing unpatching transitionlivepatch: '$MOD_LIVEPATCH': starting unpatching transitionlivepatch: '$MOD_LIVEPATCH': completing unpatching transitionlivepatch: '$MOD_LIVEPATCH': unpatching complete% rmmod $MOD_LIVEPATCH"  # - load a livepatch that modifies the output from /proc/cmdline and#   verify correct behavior# - load an atomic replace livepatch and verify that only the second is active# - remove the first livepatch and verify that the atomic replace livepatch#   is still active# - remove the atomic replace livepatch and verify that none are active start_test "atomic replace livepatch" load_lp $MOD_LIVEPATCH grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg load_lp $MOD_REPLACE replace=1 grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg unload_lp $MOD_LIVEPATCH grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg disable_lp $MOD_REPLACEunload_lp $MOD_REPLACE grep 'live patched' /proc/cmdline > /dev/kmsggrep 'live patched' /proc/meminfo > /dev/kmsg check_result "% modprobe $MOD_LIVEPATCHlivepatch: enabling patch '$MOD_LIVEPATCH'livepatch: '$MOD_LIVEPATCH': initializing patching transitionlivepatch: '$MOD_LIVEPATCH': starting patching transitionlivepatch: '$MOD_LIVEPATCH': completing patching transitionlivepatch: '$MOD_LIVEPATCH': patching complete$MOD_LIVEPATCH: this has been live patched% modprobe $MOD_REPLACE replace=1livepatch: enabling patch '$MOD_REPLACE'livepatch: '$MOD_REPLACE': initializing patching transitionlivepatch: '$MOD_REPLACE': starting patching transitionlivepatch: '$MOD_REPLACE': completing patching transitionlivepatch: '$MOD_REPLACE': patching complete$MOD_REPLACE: this has been live patched% rmmod $MOD_LIVEPATCH$MOD_REPLACE: this has been live patched% echo 0 > /sys/kernel/livepatch/$MOD_REPLACE/enabledlivepatch: '$MOD_REPLACE': initializing unpatching transitionlivepatch: '$MOD_REPLACE': starting unpatching transitionlivepatch: '$MOD_REPLACE': completing unpatching transitionlivepatch: '$MOD_REPLACE': unpatching complete% rmmod $MOD_REPLACE"  exit 0