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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
efivarfs_mount=/sys/firmware/efi/efivars
test_guid=210be57c-9849-4fc7-a635-e6382d1aec27
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
file_cleanup()
{
chattr -i $1
rm -f $1
}
check_prereqs()
{
local msg="skip all tests:"
if [ $UID != 0 ]; then
echo $msg must be run as root >&2
exit $ksft_skip
fi
if ! grep -q "^\S\+ $efivarfs_mount efivarfs" /proc/mounts; then
echo $msg efivarfs is not mounted on $efivarfs_mount >&2
exit $ksft_skip
fi
}
run_test()
{
local test="$1"
echo "--------------------"
echo "running $test"
echo "--------------------"
if [ "$(type -t $test)" = 'function' ]; then
( $test )
else
( ./$test )
fi
if [ $? -ne 0 ]; then
echo " [FAIL]"
rc=1
else
echo " [PASS]"
fi
}
test_create()
{
local attrs='\x07\x00\x00\x00'
local file=$efivarfs_mount/$FUNCNAME-$test_guid
printf "$attrs\x00" > $file
if [ ! -e $file ]; then
echo "$file couldn't be created" >&2
exit 1
fi
if [ $(stat -c %s $file) -ne 5 ]; then
echo "$file has invalid size" >&2
file_cleanup $file
exit 1
fi
file_cleanup $file
}
test_create_empty()
{
local file=$efivarfs_mount/$FUNCNAME-$test_guid
: > $file
if [ ! -e $file ]; then
echo "$file can not be created without writing" >&2
exit 1
fi
file_cleanup $file
}
test_create_read()
{
local file=$efivarfs_mount/$FUNCNAME-$test_guid
./create-read $file
if [ $? -ne 0 ]; then
echo "create and read $file failed"
file_cleanup $file
exit 1
fi
file_cleanup $file
}
test_delete()
{
local attrs='\x07\x00\x00\x00'
local file=$efivarfs_mount/$FUNCNAME-$test_guid
printf "$attrs\x00" > $file
if [ ! -e $file ]; then
echo "$file couldn't be created" >&2
exit 1
fi
file_cleanup $file
if [ -e $file ]; then
echo "$file couldn't be deleted" >&2
exit 1
fi
}
# test that we can remove a variable by issuing a write with only
# attributes specified
test_zero_size_delete()
{
local attrs='\x07\x00\x00\x00'
local file=$efivarfs_mount/$FUNCNAME-$test_guid
printf "$attrs\x00" > $file
if [ ! -e $file ]; then
echo "$file does not exist" >&2
exit 1
fi
chattr -i $file
printf "$attrs" > $file
if [ -e $file ]; then
echo "$file should have been deleted" >&2
exit 1
fi
}
test_open_unlink()
{
local file=$efivarfs_mount/$FUNCNAME-$test_guid
./open-unlink $file
}
# test that we can create a range of filenames
test_valid_filenames()
{
local attrs='\x07\x00\x00\x00'
local ret=0
local file_list="abc dump-type0-11-1-1362436005 1234 -"
for f in $file_list; do
local file=$efivarfs_mount/$f-$test_guid
printf "$attrs\x00" > $file
if [ ! -e $file ]; then
echo "$file could not be created" >&2
ret=1
else
file_cleanup $file
fi
done
exit $ret
}
test_invalid_filenames()
{
local attrs='\x07\x00\x00\x00'
local ret=0
local file_list="
-1234-1234-1234-123456789abc
foo
foo-bar
-foo-
foo-barbazba-foob-foob-foob-foobarbazfoo
foo-------------------------------------
-12345678-1234-1234-1234-123456789abc
a-12345678=1234-1234-1234-123456789abc
a-12345678-1234=1234-1234-123456789abc
a-12345678-1234-1234=1234-123456789abc
a-12345678-1234-1234-1234=123456789abc
1112345678-1234-1234-1234-123456789abc"
for f in $file_list; do
local file=$efivarfs_mount/$f
printf "$attrs\x00" 2>/dev/null > $file
if [ -e $file ]; then
echo "Creating $file should have failed" >&2
file_cleanup $file
ret=1
fi
done
exit $ret
}
check_prereqs
rc=0
run_test test_create
run_test test_create_empty
run_test test_create_read
run_test test_delete
run_test test_zero_size_delete
run_test test_open_unlink
run_test test_valid_filenames
run_test test_invalid_filenames
exit $rc