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