40f9caa7b1
Add selftests for both atomic replace and non atomic replace livepatches. The result is as follows, TEST: sysfs test ... ok TEST: sysfs test object/patched ... ok TEST: sysfs test replace enabled ... ok TEST: sysfs test replace disabled ... ok Suggested-by: Marcos Paulo de Souza <mpdesouza@suse.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Tested-by: Marcos Paulo de Souza <mpdesouza@suse.com> Reviewed-by: Marcos Paulo de Souza <mpdesouza@suse.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Acked-by: Miroslav Benes <mbenes@suse.cz> Link: https://lore.kernel.org/r/20240625151123.2750-3-laoar.shao@gmail.com Signed-off-by: Petr Mladek <pmladek@suse.com>
134 lines
5.5 KiB
Bash
Executable file
134 lines
5.5 KiB
Bash
Executable file
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2022 Song Liu <song@kernel.org>
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. $(dirname $0)/functions.sh
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MOD_LIVEPATCH=test_klp_livepatch
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setup_config
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# - load a livepatch and verifies the sysfs entries work as expected
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start_test "sysfs test"
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load_lp $MOD_LIVEPATCH
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check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr-xr-x"
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check_sysfs_rights "$MOD_LIVEPATCH" "enabled" "-rw-r--r--"
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check_sysfs_value "$MOD_LIVEPATCH" "enabled" "1"
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check_sysfs_rights "$MOD_LIVEPATCH" "force" "--w-------"
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check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
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check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--"
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check_sysfs_value "$MOD_LIVEPATCH" "transition" "0"
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check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--"
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check_sysfs_value "$MOD_LIVEPATCH" "vmlinux/patched" "1"
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disable_lp $MOD_LIVEPATCH
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unload_lp $MOD_LIVEPATCH
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check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
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livepatch: enabling patch '$MOD_LIVEPATCH'
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livepatch: '$MOD_LIVEPATCH': initializing patching transition
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livepatch: '$MOD_LIVEPATCH': starting patching transition
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livepatch: '$MOD_LIVEPATCH': completing patching transition
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livepatch: '$MOD_LIVEPATCH': patching complete
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% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
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livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
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livepatch: '$MOD_LIVEPATCH': starting unpatching transition
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livepatch: '$MOD_LIVEPATCH': completing unpatching transition
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livepatch: '$MOD_LIVEPATCH': unpatching complete
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% rmmod $MOD_LIVEPATCH"
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start_test "sysfs test object/patched"
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MOD_LIVEPATCH=test_klp_callbacks_demo
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MOD_TARGET=test_klp_callbacks_mod
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load_lp $MOD_LIVEPATCH
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# check the "patch" file changes as target module loads/unloads
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check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
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load_mod $MOD_TARGET
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check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "1"
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unload_mod $MOD_TARGET
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check_sysfs_value "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
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disable_lp $MOD_LIVEPATCH
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unload_lp $MOD_LIVEPATCH
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check_result "% insmod test_modules/test_klp_callbacks_demo.ko
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livepatch: enabling patch 'test_klp_callbacks_demo'
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livepatch: 'test_klp_callbacks_demo': initializing patching transition
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test_klp_callbacks_demo: pre_patch_callback: vmlinux
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livepatch: 'test_klp_callbacks_demo': starting patching transition
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livepatch: 'test_klp_callbacks_demo': completing patching transition
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test_klp_callbacks_demo: post_patch_callback: vmlinux
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livepatch: 'test_klp_callbacks_demo': patching complete
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% insmod test_modules/test_klp_callbacks_mod.ko
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livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod'
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test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
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test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
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test_klp_callbacks_mod: test_klp_callbacks_mod_init
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% rmmod test_klp_callbacks_mod
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test_klp_callbacks_mod: test_klp_callbacks_mod_exit
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test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
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livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod'
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test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
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% echo 0 > /sys/kernel/livepatch/test_klp_callbacks_demo/enabled
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livepatch: 'test_klp_callbacks_demo': initializing unpatching transition
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test_klp_callbacks_demo: pre_unpatch_callback: vmlinux
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livepatch: 'test_klp_callbacks_demo': starting unpatching transition
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livepatch: 'test_klp_callbacks_demo': completing unpatching transition
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test_klp_callbacks_demo: post_unpatch_callback: vmlinux
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livepatch: 'test_klp_callbacks_demo': unpatching complete
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% rmmod test_klp_callbacks_demo"
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start_test "sysfs test replace enabled"
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MOD_LIVEPATCH=test_klp_atomic_replace
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load_lp $MOD_LIVEPATCH replace=1
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check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
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check_sysfs_value "$MOD_LIVEPATCH" "replace" "1"
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disable_lp $MOD_LIVEPATCH
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unload_lp $MOD_LIVEPATCH
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check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=1
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livepatch: enabling patch '$MOD_LIVEPATCH'
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livepatch: '$MOD_LIVEPATCH': initializing patching transition
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livepatch: '$MOD_LIVEPATCH': starting patching transition
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livepatch: '$MOD_LIVEPATCH': completing patching transition
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livepatch: '$MOD_LIVEPATCH': patching complete
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% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
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livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
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livepatch: '$MOD_LIVEPATCH': starting unpatching transition
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livepatch: '$MOD_LIVEPATCH': completing unpatching transition
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livepatch: '$MOD_LIVEPATCH': unpatching complete
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% rmmod $MOD_LIVEPATCH"
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start_test "sysfs test replace disabled"
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load_lp $MOD_LIVEPATCH replace=0
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check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
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check_sysfs_value "$MOD_LIVEPATCH" "replace" "0"
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disable_lp $MOD_LIVEPATCH
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unload_lp $MOD_LIVEPATCH
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check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=0
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livepatch: enabling patch '$MOD_LIVEPATCH'
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livepatch: '$MOD_LIVEPATCH': initializing patching transition
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livepatch: '$MOD_LIVEPATCH': starting patching transition
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livepatch: '$MOD_LIVEPATCH': completing patching transition
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livepatch: '$MOD_LIVEPATCH': patching complete
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% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
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livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
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livepatch: '$MOD_LIVEPATCH': starting unpatching transition
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livepatch: '$MOD_LIVEPATCH': completing unpatching transition
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livepatch: '$MOD_LIVEPATCH': unpatching complete
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% rmmod $MOD_LIVEPATCH"
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exit 0
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