1#!/bin/bash
  2# SPDX-License-Identifier: GPL-2.0
  3# Copyright (C) 2022 Song Liu <song@kernel.org>
  4
  5. $(dirname $0)/functions.sh
  6
  7MOD_LIVEPATCH=test_klp_livepatch
  8
  9setup_config
 10
 11# - load a livepatch and verifies the sysfs entries work as expected
 12
 13start_test "sysfs test"
 14
 15load_lp $MOD_LIVEPATCH
 16
 17check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr-xr-x"
 18check_sysfs_rights "$MOD_LIVEPATCH" "enabled" "-rw-r--r--"
 19check_sysfs_value  "$MOD_LIVEPATCH" "enabled" "1"
 20check_sysfs_rights "$MOD_LIVEPATCH" "force" "--w-------"
 21check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
 22check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--"
 23check_sysfs_value  "$MOD_LIVEPATCH" "transition" "0"
 24check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--"
 25check_sysfs_value  "$MOD_LIVEPATCH" "vmlinux/patched" "1"
 26
 27disable_lp $MOD_LIVEPATCH
 28
 29unload_lp $MOD_LIVEPATCH
 30
 31check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
 32livepatch: enabling patch '$MOD_LIVEPATCH'
 33livepatch: '$MOD_LIVEPATCH': initializing patching transition
 34livepatch: '$MOD_LIVEPATCH': starting patching transition
 35livepatch: '$MOD_LIVEPATCH': completing patching transition
 36livepatch: '$MOD_LIVEPATCH': patching complete
 37% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
 38livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
 39livepatch: '$MOD_LIVEPATCH': starting unpatching transition
 40livepatch: '$MOD_LIVEPATCH': completing unpatching transition
 41livepatch: '$MOD_LIVEPATCH': unpatching complete
 42% rmmod $MOD_LIVEPATCH"
 43
 44start_test "sysfs test object/patched"
 45
 46MOD_LIVEPATCH=test_klp_callbacks_demo
 47MOD_TARGET=test_klp_callbacks_mod
 48load_lp $MOD_LIVEPATCH
 49
 50# check the "patch" file changes as target module loads/unloads
 51check_sysfs_value  "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
 52load_mod $MOD_TARGET
 53check_sysfs_value  "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "1"
 54unload_mod $MOD_TARGET
 55check_sysfs_value  "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
 56
 57disable_lp $MOD_LIVEPATCH
 58unload_lp $MOD_LIVEPATCH
 59
 60check_result "% insmod test_modules/test_klp_callbacks_demo.ko
 61livepatch: enabling patch 'test_klp_callbacks_demo'
 62livepatch: 'test_klp_callbacks_demo': initializing patching transition
 63test_klp_callbacks_demo: pre_patch_callback: vmlinux
 64livepatch: 'test_klp_callbacks_demo': starting patching transition
 65livepatch: 'test_klp_callbacks_demo': completing patching transition
 66test_klp_callbacks_demo: post_patch_callback: vmlinux
 67livepatch: 'test_klp_callbacks_demo': patching complete
 68% insmod test_modules/test_klp_callbacks_mod.ko
 69livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod'
 70test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
 71test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
 72test_klp_callbacks_mod: test_klp_callbacks_mod_init
 73% rmmod test_klp_callbacks_mod
 74test_klp_callbacks_mod: test_klp_callbacks_mod_exit
 75test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
 76livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod'
 77test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
 78% echo 0 > $SYSFS_KLP_DIR/test_klp_callbacks_demo/enabled
 79livepatch: 'test_klp_callbacks_demo': initializing unpatching transition
 80test_klp_callbacks_demo: pre_unpatch_callback: vmlinux
 81livepatch: 'test_klp_callbacks_demo': starting unpatching transition
 82livepatch: 'test_klp_callbacks_demo': completing unpatching transition
 83test_klp_callbacks_demo: post_unpatch_callback: vmlinux
 84livepatch: 'test_klp_callbacks_demo': unpatching complete
 85% rmmod test_klp_callbacks_demo"
 86
 87start_test "sysfs test replace enabled"
 88
 89MOD_LIVEPATCH=test_klp_atomic_replace
 90load_lp $MOD_LIVEPATCH replace=1
 91
 92check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
 93check_sysfs_value  "$MOD_LIVEPATCH" "replace" "1"
 94
 95disable_lp $MOD_LIVEPATCH
 96unload_lp $MOD_LIVEPATCH
 97
 98check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=1
 99livepatch: enabling patch '$MOD_LIVEPATCH'
100livepatch: '$MOD_LIVEPATCH': initializing patching transition
101livepatch: '$MOD_LIVEPATCH': starting patching transition
102livepatch: '$MOD_LIVEPATCH': completing patching transition
103livepatch: '$MOD_LIVEPATCH': patching complete
104% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
105livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
106livepatch: '$MOD_LIVEPATCH': starting unpatching transition
107livepatch: '$MOD_LIVEPATCH': completing unpatching transition
108livepatch: '$MOD_LIVEPATCH': unpatching complete
109% rmmod $MOD_LIVEPATCH"
110
111start_test "sysfs test replace disabled"
112
113load_lp $MOD_LIVEPATCH replace=0
114
115check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
116check_sysfs_value  "$MOD_LIVEPATCH" "replace" "0"
117
118disable_lp $MOD_LIVEPATCH
119unload_lp $MOD_LIVEPATCH
120
121check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=0
122livepatch: enabling patch '$MOD_LIVEPATCH'
123livepatch: '$MOD_LIVEPATCH': initializing patching transition
124livepatch: '$MOD_LIVEPATCH': starting patching transition
125livepatch: '$MOD_LIVEPATCH': completing patching transition
126livepatch: '$MOD_LIVEPATCH': patching complete
127% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
128livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
129livepatch: '$MOD_LIVEPATCH': starting unpatching transition
130livepatch: '$MOD_LIVEPATCH': completing unpatching transition
131livepatch: '$MOD_LIVEPATCH': unpatching complete
132% rmmod $MOD_LIVEPATCH"
133
134exit 0