linux/tools/testing/selftests/livepatch/test-state.sh
Shuah Khan 05564c29fc selftests: livepatch: Fix it to do root uid check and skip
livepatch test configures the system and debug environment to run
tests. Some of these actions fail without root access and test
dumps several permission denied messages before it exits.

Fix test-state.sh to call setup_config instead of set_dynamic_debug
as suggested by Petr Mladek <pmladek@suse.com>

Fix it to check root uid and exit with skip code instead.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:40 -07:00

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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2019 SUSE
. $(dirname $0)/functions.sh
MOD_LIVEPATCH=test_klp_state
MOD_LIVEPATCH2=test_klp_state2
MOD_LIVEPATCH3=test_klp_state3
setup_config
# TEST: Loading and removing a module that modifies the system state
echo -n "TEST: system state modification ... "
dmesg -C
load_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
check_result "% modprobe $MOD_LIVEPATCH
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
$MOD_LIVEPATCH: pre_patch_callback: vmlinux
$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH': starting patching transition
livepatch: '$MOD_LIVEPATCH': completing patching transition
$MOD_LIVEPATCH: post_patch_callback: vmlinux
$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH': patching complete
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH': starting unpatching transition
livepatch: '$MOD_LIVEPATCH': completing unpatching transition
$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH': unpatching complete
% rmmod $MOD_LIVEPATCH"
# TEST: Take over system state change by a cumulative patch
echo -n "TEST: taking over system state modification ... "
dmesg -C
load_lp $MOD_LIVEPATCH
load_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
check_result "% modprobe $MOD_LIVEPATCH
livepatch: enabling patch '$MOD_LIVEPATCH'
livepatch: '$MOD_LIVEPATCH': initializing patching transition
$MOD_LIVEPATCH: pre_patch_callback: vmlinux
$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH': starting patching transition
livepatch: '$MOD_LIVEPATCH': completing patching transition
$MOD_LIVEPATCH: post_patch_callback: vmlinux
$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH': patching complete
% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
livepatch: '$MOD_LIVEPATCH2': patching complete
% rmmod $MOD_LIVEPATCH
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH2': unpatching complete
% rmmod $MOD_LIVEPATCH2"
# TEST: Take over system state change by a cumulative patch
echo -n "TEST: compatible cumulative livepatches ... "
dmesg -C
load_lp $MOD_LIVEPATCH2
load_lp $MOD_LIVEPATCH3
unload_lp $MOD_LIVEPATCH2
load_lp $MOD_LIVEPATCH2
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH3
check_result "% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH2': patching complete
% modprobe $MOD_LIVEPATCH3
livepatch: enabling patch '$MOD_LIVEPATCH3'
livepatch: '$MOD_LIVEPATCH3': initializing patching transition
$MOD_LIVEPATCH3: pre_patch_callback: vmlinux
$MOD_LIVEPATCH3: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH3': starting patching transition
livepatch: '$MOD_LIVEPATCH3': completing patching transition
$MOD_LIVEPATCH3: post_patch_callback: vmlinux
$MOD_LIVEPATCH3: fix_console_loglevel: taking over the console_loglevel change
livepatch: '$MOD_LIVEPATCH3': patching complete
% rmmod $MOD_LIVEPATCH2
% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
livepatch: '$MOD_LIVEPATCH2': patching complete
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH2': unpatching complete
% rmmod $MOD_LIVEPATCH2
% rmmod $MOD_LIVEPATCH3"
# TEST: Failure caused by incompatible cumulative livepatches
echo -n "TEST: incompatible cumulative livepatches ... "
dmesg -C
load_lp $MOD_LIVEPATCH2
load_failing_mod $MOD_LIVEPATCH
disable_lp $MOD_LIVEPATCH2
unload_lp $MOD_LIVEPATCH2
check_result "% modprobe $MOD_LIVEPATCH2
livepatch: enabling patch '$MOD_LIVEPATCH2'
livepatch: '$MOD_LIVEPATCH2': initializing patching transition
$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting patching transition
livepatch: '$MOD_LIVEPATCH2': completing patching transition
$MOD_LIVEPATCH2: post_patch_callback: vmlinux
$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
livepatch: '$MOD_LIVEPATCH2': patching complete
% modprobe $MOD_LIVEPATCH
livepatch: Livepatch patch ($MOD_LIVEPATCH) is not compatible with the already installed livepatches.
modprobe: ERROR: could not insert '$MOD_LIVEPATCH': Invalid argument
% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled
livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
livepatch: '$MOD_LIVEPATCH2': unpatching complete
% rmmod $MOD_LIVEPATCH2"
exit 0