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selftests/livepatch: Add selftests for "replace" sysfs attribute

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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>
This commit is contained in:
Yafang Shao 2024-06-25 23:11:22 +08:00 committed by Petr Mladek
parent adb68ed26a
commit 40f9caa7b1
1 changed files with 48 additions and 0 deletions
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48
tools/testing/selftests/livepatch/test-sysfs.sh
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@ -18,6 +18,7 @@ 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 "$MOD_LIVEPATCH" "replace" "-r--r--r--"
check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "transition" "0"
check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--"
@ -83,4 +84,51 @@ test_klp_callbacks_demo: post_unpatch_callback: vmlinux
livepatch: 'test_klp_callbacks_demo': unpatching complete
% rmmod test_klp_callbacks_demo"
start_test "sysfs test replace enabled"
MOD_LIVEPATCH=test_klp_atomic_replace
load_lp $MOD_LIVEPATCH replace=1
check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "replace" "1"
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=1
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 replace disabled"
load_lp $MOD_LIVEPATCH replace=0
check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
check_sysfs_value "$MOD_LIVEPATCH" "replace" "0"
disable_lp $MOD_LIVEPATCH
unload_lp $MOD_LIVEPATCH
check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=0
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"
exit 0