| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2022 Song Liu <song@kernel.org> |
| |
| . $(dirname $0)/functions.sh |
| |
| MOD_LIVEPATCH=test_klp_livepatch |
| MOD_LIVEPATCH2=test_klp_callbacks_demo |
| MOD_LIVEPATCH3=test_klp_syscall |
| |
| HAS_PATCH_ATTR=0 |
| HAS_REPLACE_ATTR=0 |
| HAS_STACK_ORDER_ATTR=0 |
| |
| setup_config |
| |
| # - load a livepatch and verifies the sysfs entries work as expected |
| |
| start_test "sysfs test" |
| |
| load_lp $MOD_LIVEPATCH |
| |
| check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr-xr-x" |
| check_sysfs_rights "$MOD_LIVEPATCH" "enabled" "-rw-r--r--" |
| check_sysfs_value "$MOD_LIVEPATCH" "enabled" "1" |
| check_sysfs_rights "$MOD_LIVEPATCH" "force" "--w-------" |
| check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--" |
| check_sysfs_value "$MOD_LIVEPATCH" "transition" "0" |
| |
| if does_sysfs_exist "$MOD_LIVEPATCH/vmlinux" "patched"; then |
| check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--" |
| check_sysfs_value "$MOD_LIVEPATCH" "vmlinux/patched" "1" |
| HAS_PATCH_ATTR=1 |
| fi |
| |
| if does_sysfs_exist "$MOD_LIVEPATCH" "replace"; then |
| check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--" |
| HAS_REPLACE_ATTR=1 |
| fi |
| |
| if does_sysfs_exist "$MOD_LIVEPATCH" "stack_order"; then |
| check_sysfs_rights "$MOD_LIVEPATCH" "stack_order" "-r--r--r--" |
| check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1" |
| HAS_STACK_ORDER_ATTR=1 |
| fi |
| |
| disable_lp $MOD_LIVEPATCH |
| |
| unload_lp $MOD_LIVEPATCH |
| |
| check_result "% insmod test_modules/$MOD_LIVEPATCH.ko |
| livepatch: enabling patch '$MOD_LIVEPATCH' |
| livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| livepatch: '$MOD_LIVEPATCH': starting patching transition |
| livepatch: '$MOD_LIVEPATCH': completing patching transition |
| livepatch: '$MOD_LIVEPATCH': patching complete |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled |
| livepatch: '$MOD_LIVEPATCH': initializing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH': completing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': unpatching complete |
| % rmmod $MOD_LIVEPATCH" |
| |
| if [[ "$HAS_PATCH_ATTR" == "1" ]]; then |
| start_test "sysfs test object/patched" |
| |
| MOD_TARGET=test_klp_callbacks_mod |
| load_lp $MOD_LIVEPATCH2 |
| |
| # check the "patch" file changes as target module loads/unloads |
| check_sysfs_value "$MOD_LIVEPATCH2" "$MOD_TARGET/patched" "0" |
| load_mod $MOD_TARGET |
| check_sysfs_value "$MOD_LIVEPATCH2" "$MOD_TARGET/patched" "1" |
| unload_mod $MOD_TARGET |
| check_sysfs_value "$MOD_LIVEPATCH2" "$MOD_TARGET/patched" "0" |
| |
| disable_lp $MOD_LIVEPATCH2 |
| unload_lp $MOD_LIVEPATCH2 |
| |
| check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko |
| livepatch: enabling patch '$MOD_LIVEPATCH2' |
| livepatch: '$MOD_LIVEPATCH2': initializing patching transition |
| $MOD_LIVEPATCH2: pre_patch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': starting patching transition |
| livepatch: '$MOD_LIVEPATCH2': completing patching transition |
| $MOD_LIVEPATCH2: post_patch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': patching complete |
| % insmod test_modules/$MOD_TARGET.ko |
| livepatch: applying patch '$MOD_LIVEPATCH2' to loading module '$MOD_TARGET' |
| $MOD_LIVEPATCH2: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init |
| $MOD_LIVEPATCH2: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init |
| $MOD_TARGET: test_klp_callbacks_mod_init |
| % rmmod $MOD_TARGET |
| $MOD_TARGET: test_klp_callbacks_mod_exit |
| $MOD_LIVEPATCH2: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away |
| livepatch: reverting patch '$MOD_LIVEPATCH2' on unloading module '$MOD_TARGET' |
| $MOD_LIVEPATCH2: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled |
| livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition |
| $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH2': completing unpatching transition |
| $MOD_LIVEPATCH2: post_unpatch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': unpatching complete |
| % rmmod $MOD_LIVEPATCH2" |
| fi |
| |
| if [[ "$HAS_REPLACE_ATTR" == "1" ]]; then |
| start_test "sysfs test replace enabled" |
| |
| MOD_ATOMIC_REPLACE=test_klp_atomic_replace |
| load_lp $MOD_ATOMIC_REPLACE replace=1 |
| |
| check_sysfs_rights "$MOD_ATOMIC_REPLACE" "replace" "-r--r--r--" |
| check_sysfs_value "$MOD_ATOMIC_REPLACE" "replace" "1" |
| |
| disable_lp $MOD_ATOMIC_REPLACE |
| unload_lp $MOD_ATOMIC_REPLACE |
| |
| check_result "% insmod test_modules/$MOD_ATOMIC_REPLACE.ko replace=1 |
| livepatch: enabling patch '$MOD_ATOMIC_REPLACE' |
| livepatch: '$MOD_ATOMIC_REPLACE': initializing patching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': starting patching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': completing patching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': patching complete |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_ATOMIC_REPLACE/enabled |
| livepatch: '$MOD_ATOMIC_REPLACE': initializing unpatching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': starting unpatching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': completing unpatching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': unpatching complete |
| % rmmod $MOD_ATOMIC_REPLACE" |
| |
| start_test "sysfs test replace disabled" |
| |
| load_lp $MOD_ATOMIC_REPLACE replace=0 |
| |
| check_sysfs_rights "$MOD_ATOMIC_REPLACE" "replace" "-r--r--r--" |
| check_sysfs_value "$MOD_ATOMIC_REPLACE" "replace" "0" |
| |
| disable_lp $MOD_ATOMIC_REPLACE |
| unload_lp $MOD_ATOMIC_REPLACE |
| |
| check_result "% insmod test_modules/$MOD_ATOMIC_REPLACE.ko replace=0 |
| livepatch: enabling patch '$MOD_ATOMIC_REPLACE' |
| livepatch: '$MOD_ATOMIC_REPLACE': initializing patching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': starting patching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': completing patching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': patching complete |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_ATOMIC_REPLACE/enabled |
| livepatch: '$MOD_ATOMIC_REPLACE': initializing unpatching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': starting unpatching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': completing unpatching transition |
| livepatch: '$MOD_ATOMIC_REPLACE': unpatching complete |
| % rmmod $MOD_ATOMIC_REPLACE" |
| fi |
| |
| if [[ "$HAS_STACK_ORDER_ATTR" == "1" ]]; then |
| start_test "sysfs test stack_order value" |
| |
| load_lp $MOD_LIVEPATCH |
| |
| check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1" |
| |
| load_lp $MOD_LIVEPATCH2 |
| |
| check_sysfs_value "$MOD_LIVEPATCH2" "stack_order" "2" |
| |
| load_lp $MOD_LIVEPATCH3 |
| |
| check_sysfs_value "$MOD_LIVEPATCH3" "stack_order" "3" |
| |
| disable_lp $MOD_LIVEPATCH2 |
| unload_lp $MOD_LIVEPATCH2 |
| |
| check_sysfs_value "$MOD_LIVEPATCH" "stack_order" "1" |
| check_sysfs_value "$MOD_LIVEPATCH3" "stack_order" "2" |
| |
| disable_lp $MOD_LIVEPATCH3 |
| unload_lp $MOD_LIVEPATCH3 |
| |
| disable_lp $MOD_LIVEPATCH |
| unload_lp $MOD_LIVEPATCH |
| |
| check_result "% insmod test_modules/$MOD_LIVEPATCH.ko |
| livepatch: enabling patch '$MOD_LIVEPATCH' |
| livepatch: '$MOD_LIVEPATCH': initializing patching transition |
| livepatch: '$MOD_LIVEPATCH': starting patching transition |
| livepatch: '$MOD_LIVEPATCH': completing patching transition |
| livepatch: '$MOD_LIVEPATCH': patching complete |
| % insmod test_modules/$MOD_LIVEPATCH2.ko |
| livepatch: enabling patch '$MOD_LIVEPATCH2' |
| livepatch: '$MOD_LIVEPATCH2': initializing patching transition |
| $MOD_LIVEPATCH2: pre_patch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': starting patching transition |
| livepatch: '$MOD_LIVEPATCH2': completing patching transition |
| $MOD_LIVEPATCH2: post_patch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': patching complete |
| % insmod test_modules/$MOD_LIVEPATCH3.ko |
| livepatch: enabling patch '$MOD_LIVEPATCH3' |
| livepatch: '$MOD_LIVEPATCH3': initializing patching transition |
| livepatch: '$MOD_LIVEPATCH3': starting patching transition |
| livepatch: '$MOD_LIVEPATCH3': completing patching transition |
| livepatch: '$MOD_LIVEPATCH3': patching complete |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled |
| livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition |
| $MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH2': completing unpatching transition |
| $MOD_LIVEPATCH2: post_unpatch_callback: vmlinux |
| livepatch: '$MOD_LIVEPATCH2': unpatching complete |
| % rmmod $MOD_LIVEPATCH2 |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH3/enabled |
| livepatch: '$MOD_LIVEPATCH3': initializing unpatching transition |
| livepatch: '$MOD_LIVEPATCH3': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH3': completing unpatching transition |
| livepatch: '$MOD_LIVEPATCH3': unpatching complete |
| % rmmod $MOD_LIVEPATCH3 |
| % echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled |
| livepatch: '$MOD_LIVEPATCH': initializing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': starting unpatching transition |
| livepatch: '$MOD_LIVEPATCH': completing unpatching transition |
| livepatch: '$MOD_LIVEPATCH': unpatching complete |
| % rmmod $MOD_LIVEPATCH" |
| fi |
| |
| exit 0 |
