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Diffstat (limited to '')
| -rwxr-xr-x | tools/testing/selftests/livepatch/test-sysfs.sh | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/tools/testing/selftests/livepatch/test-sysfs.sh b/tools/testing/selftests/livepatch/test-sysfs.sh new file mode 100755 index 000000000..7f76f2801 --- /dev/null +++ b/tools/testing/selftests/livepatch/test-sysfs.sh @@ -0,0 +1,86 @@ +#!/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 + +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 "$MOD_LIVEPATCH" "transition" "0" +check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--" +check_sysfs_value "$MOD_LIVEPATCH" "vmlinux/patched" "1" + +disable_lp $MOD_LIVEPATCH + +unload_lp $MOD_LIVEPATCH + +check_result "% modprobe $MOD_LIVEPATCH +livepatch: enabling patch '$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 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled +livepatch: '$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" + +start_test "sysfs test object/patched" + +MOD_LIVEPATCH=test_klp_callbacks_demo +MOD_TARGET=test_klp_callbacks_mod +load_lp $MOD_LIVEPATCH + +# check the "patch" file changes as target module loads/unloads +check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0" +load_mod $MOD_TARGET +check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "1" +unload_mod $MOD_TARGET +check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0" + +disable_lp $MOD_LIVEPATCH +unload_lp $MOD_LIVEPATCH + +check_result "% modprobe test_klp_callbacks_demo +livepatch: enabling patch 'test_klp_callbacks_demo' +livepatch: 'test_klp_callbacks_demo': initializing patching transition +test_klp_callbacks_demo: pre_patch_callback: vmlinux +livepatch: 'test_klp_callbacks_demo': starting patching transition +livepatch: 'test_klp_callbacks_demo': completing patching transition +test_klp_callbacks_demo: post_patch_callback: vmlinux +livepatch: 'test_klp_callbacks_demo': patching complete +% modprobe test_klp_callbacks_mod +livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod' +test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init +test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init +test_klp_callbacks_mod: test_klp_callbacks_mod_init +% rmmod test_klp_callbacks_mod +test_klp_callbacks_mod: test_klp_callbacks_mod_exit +test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away +livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod' +test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away +% echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled +livepatch: 'test_klp_callbacks_demo': initializing unpatching transition +test_klp_callbacks_demo: pre_unpatch_callback: vmlinux +livepatch: 'test_klp_callbacks_demo': starting unpatching transition +livepatch: 'test_klp_callbacks_demo': completing unpatching transition +test_klp_callbacks_demo: post_unpatch_callback: vmlinux +livepatch: 'test_klp_callbacks_demo': unpatching complete +% rmmod test_klp_callbacks_demo" + +exit 0 |