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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 # Load and remove a module that modifies the system state start_test "system state modification" 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" # Take over system state change by a cumulative patch start_test "taking over system state modification" 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" # Take over system state change by a cumulative patch start_test "compatible cumulative livepatches" 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" # Failure caused by incompatible cumulative livepatches start_test "incompatible cumulative livepatches" 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