| #!/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_livepatch |
| MOD_REPLACE=test_klp_atomic_replace |
| |
| set_dynamic_debug |
| |
| |
| # TEST: basic function patching |
| # - load a livepatch that modifies the output from /proc/cmdline and |
| # verify correct behavior |
| # - unload the livepatch and make sure the patch was removed |
| |
| echo -n "TEST: basic function patching ... " |
| dmesg -C |
| |
| 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_LIVEPATCH |
| unload_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 $MOD_LIVEPATCH |
| livepatch: enabling patch '$MOD_LIVEPATCH' |
| livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| livepatch: '$MOD_LIVEPATCH': starting patching transition |
| livepatch: '$MOD_LIVEPATCH': completing patching transition |
| livepatch: '$MOD_LIVEPATCH': patching complete |
| % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled |
| livepatch: '$MOD_LIVEPATCH': initializing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH': completing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': unpatching complete |
| % rmmod $MOD_LIVEPATCH" |
| |
| |
| # TEST: multiple livepatches |
| # - 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 |
| |
| echo -n "TEST: multiple livepatches ... " |
| dmesg -C |
| |
| load_lp $MOD_LIVEPATCH |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| load_lp $MOD_REPLACE replace=0 |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| disable_lp $MOD_REPLACE |
| unload_lp $MOD_REPLACE |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| disable_lp $MOD_LIVEPATCH |
| unload_lp $MOD_LIVEPATCH |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| check_result "% modprobe $MOD_LIVEPATCH |
| livepatch: enabling patch '$MOD_LIVEPATCH' |
| livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| livepatch: '$MOD_LIVEPATCH': starting patching transition |
| livepatch: '$MOD_LIVEPATCH': completing patching transition |
| livepatch: '$MOD_LIVEPATCH': patching complete |
| $MOD_LIVEPATCH: this has been live patched |
| % modprobe $MOD_REPLACE replace=0 |
| livepatch: enabling patch '$MOD_REPLACE' |
| livepatch: '$MOD_REPLACE': initializing patching transition |
| livepatch: '$MOD_REPLACE': starting patching transition |
| livepatch: '$MOD_REPLACE': completing patching transition |
| livepatch: '$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/enabled |
| livepatch: '$MOD_REPLACE': initializing unpatching transition |
| livepatch: '$MOD_REPLACE': starting unpatching transition |
| livepatch: '$MOD_REPLACE': completing unpatching transition |
| livepatch: '$MOD_REPLACE': unpatching complete |
| % rmmod $MOD_REPLACE |
| $MOD_LIVEPATCH: this has been live patched |
| % echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled |
| livepatch: '$MOD_LIVEPATCH': initializing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH': completing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': unpatching complete |
| % rmmod $MOD_LIVEPATCH" |
| |
| |
| # TEST: atomic replace 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 |
| |
| echo -n "TEST: atomic replace livepatch ... " |
| dmesg -C |
| |
| load_lp $MOD_LIVEPATCH |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| load_lp $MOD_REPLACE replace=1 |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| unload_lp $MOD_LIVEPATCH |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| disable_lp $MOD_REPLACE |
| unload_lp $MOD_REPLACE |
| |
| grep 'live patched' /proc/cmdline > /dev/kmsg |
| grep 'live patched' /proc/meminfo > /dev/kmsg |
| |
| check_result "% modprobe $MOD_LIVEPATCH |
| livepatch: enabling patch '$MOD_LIVEPATCH' |
| livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| livepatch: '$MOD_LIVEPATCH': starting patching transition |
| livepatch: '$MOD_LIVEPATCH': completing patching transition |
| livepatch: '$MOD_LIVEPATCH': patching complete |
| $MOD_LIVEPATCH: this has been live patched |
| % modprobe $MOD_REPLACE replace=1 |
| livepatch: enabling patch '$MOD_REPLACE' |
| livepatch: '$MOD_REPLACE': initializing patching transition |
| livepatch: '$MOD_REPLACE': starting patching transition |
| livepatch: '$MOD_REPLACE': completing patching transition |
| livepatch: '$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/enabled |
| livepatch: '$MOD_REPLACE': initializing unpatching transition |
| livepatch: '$MOD_REPLACE': starting unpatching transition |
| livepatch: '$MOD_REPLACE': completing unpatching transition |
| livepatch: '$MOD_REPLACE': unpatching complete |
| % rmmod $MOD_REPLACE" |
| |
| |
| exit 0 |
