Commit 40f9caa7 authored by Yafang Shao's avatar Yafang Shao Committed by Petr Mladek
Browse files

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



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: default avatarMarcos Paulo de Souza <mpdesouza@suse.com>
Signed-off-by: default avatarYafang Shao <laoar.shao@gmail.com>
Tested-by: default avatarMarcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: default avatarMarcos Paulo de Souza <mpdesouza@suse.com>
Reviewed-by: default avatarPetr Mladek <pmladek@suse.com>
Acked-by: default avatarMiroslav Benes <mbenes@suse.cz>
Link: https://lore.kernel.org/r/20240625151123.2750-3-laoar.shao@gmail.com


Signed-off-by: default avatarPetr Mladek <pmladek@suse.com>
parent adb68ed2

tools/testing/selftests/livepatch/test-sysfs.sh

+48 −0
Original line number Diff line number Diff line
@@ -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