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