1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# Copyright (C) 2019 SUSE 4 5. $(dirname $0)/functions.sh 6 7MOD_LIVEPATCH=test_klp_state 8MOD_LIVEPATCH2=test_klp_state2 9MOD_LIVEPATCH3=test_klp_state3 10 11setup_config 12 13 14# Load and remove a module that modifies the system state 15 16start_test "system state modification" 17 18load_lp $MOD_LIVEPATCH 19disable_lp $MOD_LIVEPATCH 20unload_lp $MOD_LIVEPATCH 21 22check_result "% insmod test_modules/$MOD_LIVEPATCH.ko 23livepatch: enabling patch '$MOD_LIVEPATCH' 24livepatch: '$MOD_LIVEPATCH': initializing patching transition 25$MOD_LIVEPATCH: pre_patch_callback: vmlinux 26$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel 27livepatch: '$MOD_LIVEPATCH': starting patching transition 28livepatch: '$MOD_LIVEPATCH': completing patching transition 29$MOD_LIVEPATCH: post_patch_callback: vmlinux 30$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel 31livepatch: '$MOD_LIVEPATCH': patching complete 32% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled 33livepatch: '$MOD_LIVEPATCH': initializing unpatching transition 34$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux 35$MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel 36livepatch: '$MOD_LIVEPATCH': starting unpatching transition 37livepatch: '$MOD_LIVEPATCH': completing unpatching transition 38$MOD_LIVEPATCH: post_unpatch_callback: vmlinux 39$MOD_LIVEPATCH: free_loglevel_state: freeing space for the stored console_loglevel 40livepatch: '$MOD_LIVEPATCH': unpatching complete 41% rmmod $MOD_LIVEPATCH" 42 43 44# Take over system state change by a cumulative patch 45 46start_test "taking over system state modification" 47 48load_lp $MOD_LIVEPATCH 49load_lp $MOD_LIVEPATCH2 50unload_lp $MOD_LIVEPATCH 51disable_lp $MOD_LIVEPATCH2 52unload_lp $MOD_LIVEPATCH2 53 54check_result "% insmod test_modules/$MOD_LIVEPATCH.ko 55livepatch: enabling patch '$MOD_LIVEPATCH' 56livepatch: '$MOD_LIVEPATCH': initializing patching transition 57$MOD_LIVEPATCH: pre_patch_callback: vmlinux 58$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel 59livepatch: '$MOD_LIVEPATCH': starting patching transition 60livepatch: '$MOD_LIVEPATCH': completing patching transition 61$MOD_LIVEPATCH: post_patch_callback: vmlinux 62$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel 63livepatch: '$MOD_LIVEPATCH': patching complete 64% insmod test_modules/$MOD_LIVEPATCH2.ko 65livepatch: enabling patch '$MOD_LIVEPATCH2' 66livepatch: '$MOD_LIVEPATCH2': initializing patching transition 67$MOD_LIVEPATCH2: pre_patch_callback: vmlinux 68$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated 69livepatch: '$MOD_LIVEPATCH2': starting patching transition 70livepatch: '$MOD_LIVEPATCH2': completing patching transition 71$MOD_LIVEPATCH2: post_patch_callback: vmlinux 72$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change 73livepatch: '$MOD_LIVEPATCH2': patching complete 74% rmmod $MOD_LIVEPATCH 75% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled 76livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition 77$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux 78$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel 79livepatch: '$MOD_LIVEPATCH2': starting unpatching transition 80livepatch: '$MOD_LIVEPATCH2': completing unpatching transition 81$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux 82$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel 83livepatch: '$MOD_LIVEPATCH2': unpatching complete 84% rmmod $MOD_LIVEPATCH2" 85 86 87# Take over system state change by a cumulative patch 88 89start_test "compatible cumulative livepatches" 90 91load_lp $MOD_LIVEPATCH2 92load_lp $MOD_LIVEPATCH3 93unload_lp $MOD_LIVEPATCH2 94load_lp $MOD_LIVEPATCH2 95disable_lp $MOD_LIVEPATCH2 96unload_lp $MOD_LIVEPATCH2 97unload_lp $MOD_LIVEPATCH3 98 99check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko 100livepatch: enabling patch '$MOD_LIVEPATCH2' 101livepatch: '$MOD_LIVEPATCH2': initializing patching transition 102$MOD_LIVEPATCH2: pre_patch_callback: vmlinux 103$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel 104livepatch: '$MOD_LIVEPATCH2': starting patching transition 105livepatch: '$MOD_LIVEPATCH2': completing patching transition 106$MOD_LIVEPATCH2: post_patch_callback: vmlinux 107$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel 108livepatch: '$MOD_LIVEPATCH2': patching complete 109% insmod test_modules/$MOD_LIVEPATCH3.ko 110livepatch: enabling patch '$MOD_LIVEPATCH3' 111livepatch: '$MOD_LIVEPATCH3': initializing patching transition 112$MOD_LIVEPATCH3: pre_patch_callback: vmlinux 113$MOD_LIVEPATCH3: allocate_loglevel_state: space to store console_loglevel already allocated 114livepatch: '$MOD_LIVEPATCH3': starting patching transition 115livepatch: '$MOD_LIVEPATCH3': completing patching transition 116$MOD_LIVEPATCH3: post_patch_callback: vmlinux 117$MOD_LIVEPATCH3: fix_console_loglevel: taking over the console_loglevel change 118livepatch: '$MOD_LIVEPATCH3': patching complete 119% rmmod $MOD_LIVEPATCH2 120% insmod test_modules/$MOD_LIVEPATCH2.ko 121livepatch: enabling patch '$MOD_LIVEPATCH2' 122livepatch: '$MOD_LIVEPATCH2': initializing patching transition 123$MOD_LIVEPATCH2: pre_patch_callback: vmlinux 124$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated 125livepatch: '$MOD_LIVEPATCH2': starting patching transition 126livepatch: '$MOD_LIVEPATCH2': completing patching transition 127$MOD_LIVEPATCH2: post_patch_callback: vmlinux 128$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change 129livepatch: '$MOD_LIVEPATCH2': patching complete 130% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled 131livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition 132$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux 133$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel 134livepatch: '$MOD_LIVEPATCH2': starting unpatching transition 135livepatch: '$MOD_LIVEPATCH2': completing unpatching transition 136$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux 137$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel 138livepatch: '$MOD_LIVEPATCH2': unpatching complete 139% rmmod $MOD_LIVEPATCH2 140% rmmod $MOD_LIVEPATCH3" 141 142 143# Failure caused by incompatible cumulative livepatches 144 145start_test "incompatible cumulative livepatches" 146 147load_lp $MOD_LIVEPATCH2 148load_failing_mod $MOD_LIVEPATCH 149disable_lp $MOD_LIVEPATCH2 150unload_lp $MOD_LIVEPATCH2 151 152check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko 153livepatch: enabling patch '$MOD_LIVEPATCH2' 154livepatch: '$MOD_LIVEPATCH2': initializing patching transition 155$MOD_LIVEPATCH2: pre_patch_callback: vmlinux 156$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel 157livepatch: '$MOD_LIVEPATCH2': starting patching transition 158livepatch: '$MOD_LIVEPATCH2': completing patching transition 159$MOD_LIVEPATCH2: post_patch_callback: vmlinux 160$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel 161livepatch: '$MOD_LIVEPATCH2': patching complete 162% insmod test_modules/$MOD_LIVEPATCH.ko 163livepatch: Livepatch patch ($MOD_LIVEPATCH) is not compatible with the already installed livepatches. 164insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Invalid parameters 165% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH2/enabled 166livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition 167$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux 168$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel 169livepatch: '$MOD_LIVEPATCH2': starting unpatching transition 170livepatch: '$MOD_LIVEPATCH2': completing unpatching transition 171$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux 172$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel 173livepatch: '$MOD_LIVEPATCH2': unpatching complete 174% rmmod $MOD_LIVEPATCH2" 175 176exit 0 177