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selftests/livepatch: add sysfs test

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Add a test for livepatch sysfs entries.

Signed-off-by: Song Liu <song@kernel.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220902205208.3117798-3-song@kernel.org
This commit is contained in:
Song Liu
2022-09-02 13:52:08 -07:00
committed by Petr Mladek
parent bb26cfd9e7
commit ff1b80ec84
3 changed files with 122 additions and 1 deletions
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34
tools/testing/selftests/livepatch/functions.sh
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@@ -6,6 +6,7 @@
MAX_RETRIES=600
RETRY_INTERVAL=".1" # seconds
KLP_SYSFS_DIR="/sys/kernel/livepatch"
# Kselftest framework requirement - SKIP code is 4
ksft_skip=4
@@ -308,3 +309,36 @@ function check_result {
cleanup_dmesg_file
}
# check_sysfs_rights(modname, rel_path, expected_rights) - check sysfs
# path permissions
# modname - livepatch module creating the sysfs interface
# rel_path - relative path of the sysfs interface
# expected_rights - expected access rights
function check_sysfs_rights() {
local mod="$1"; shift
local rel_path="$1"; shift
local expected_rights="$1"; shift
local path="$KLP_SYSFS_DIR/$mod/$rel_path"
local rights=$(/bin/stat --format '%A' "$path")
if test "$rights" != "$expected_rights" ; then
die "Unexpected access rights of $path: $expected_rights vs. $rights"
fi
}
# check_sysfs_value(modname, rel_path, expected_value) - check sysfs value
# modname - livepatch module creating the sysfs interface
# rel_path - relative path of the sysfs interface
# expected_value - expected value read from the file
function check_sysfs_value() {
local mod="$1"; shift
local rel_path="$1"; shift
local expected_value="$1"; shift
local path="$KLP_SYSFS_DIR/$mod/$rel_path"
local value=`cat $path`
if test "$value" != "$expected_value" ; then
die "Unexpected value in $path: $expected_value vs. $value"
fi
}