diff options
Diffstat (limited to 'tools/testing/selftests/efivarfs/efivarfs.sh')
| -rwxr-xr-x[-rw-r--r--] | tools/testing/selftests/efivarfs/efivarfs.sh | 194 |
1 files changed, 187 insertions, 7 deletions
diff --git a/tools/testing/selftests/efivarfs/efivarfs.sh b/tools/testing/selftests/efivarfs/efivarfs.sh index 77edcdcc016b..c62544b966ae 100644..100755 --- a/tools/testing/selftests/efivarfs/efivarfs.sh +++ b/tools/testing/selftests/efivarfs/efivarfs.sh @@ -1,20 +1,30 @@ #!/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 0 + 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 0 + exit $ksft_skip fi } @@ -54,8 +64,10 @@ test_create() 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() @@ -64,8 +76,9 @@ test_create_empty() : > $file - if [ ! -e $file ]; then - echo "$file can not be created without writing" >&2 + if [ -e $file ]; then + echo "$file can be created without writing" >&2 + file_cleanup $file exit 1 fi } @@ -74,6 +87,15 @@ test_create_read() { local file=$efivarfs_mount/$FUNCNAME-$test_guid ./create-read $file + if [ $? -ne 0 ]; then + echo "create and read $file failed" + exit 1 + fi + if [ -e $file ]; then + echo "file still exists and should not" + file_cleanup $file + exit 1 + fi } test_delete() @@ -88,7 +110,7 @@ test_delete() exit 1 fi - rm $file + file_cleanup $file if [ -e $file ]; then echo "$file couldn't be deleted" >&2 @@ -111,6 +133,7 @@ test_zero_size_delete() exit 1 fi + chattr -i $file printf "$attrs" > $file if [ -e $file ]; then @@ -141,7 +164,7 @@ test_valid_filenames() echo "$file could not be created" >&2 ret=1 else - rm $file + file_cleanup $file fi done @@ -174,7 +197,7 @@ test_invalid_filenames() if [ -e $file ]; then echo "Creating $file should have failed" >&2 - rm $file + file_cleanup $file ret=1 fi done @@ -182,6 +205,158 @@ test_invalid_filenames() exit $ret } +test_no_set_size() +{ + local attrs='\x07\x00\x00\x00' + local file=$efivarfs_mount/$FUNCNAME-$test_guid + local ret=0 + + printf "$attrs\x00" > $file + [ -e $file -a -s $file ] || exit 1 + chattr -i $file + : > $file + if [ $? != 0 ]; then + echo "variable file failed to accept truncation" + ret=1 + elif [ -e $file -a ! -s $file ]; then + echo "file can be truncated to zero size" + ret=1 + fi + rm $file || exit 1 + + exit $ret +} + +setup_test_multiple() +{ + ## + # we're going to do multi-threaded tests, so create a set of + # pipes for synchronization. We use pipes 1..3 to start the + # stalled shell job and pipes 4..6 as indicators that the job + # has started. If you need more than 3 jobs the two +3's below + # need increasing + ## + + declare -ag p + + # empty is because arrays number from 0 but jobs number from 1 + p[0]="" + + for f in 1 2 3 4 5 6; do + p[$f]=/tmp/efivarfs_pipe${f} + mknod ${p[$f]} p + done + + declare -g var=$efivarfs_mount/test_multiple-$test_guid + + cleanup() { + for f in ${p[@]}; do + rm -f ${f} + done + if [ -e $var ]; then + file_cleanup $var + fi + } + trap cleanup exit + + waitstart() { + cat ${p[$[$1+3]]} > /dev/null + } + + waitpipe() { + echo 1 > ${p[$[$1+3]]} + cat ${p[$1]} > /dev/null + } + + endjob() { + echo 1 > ${p[$1]} + wait -n %$1 + } +} + +test_multiple_zero_size() +{ + ## + # check for remove on last close, set up three threads all + # holding the variable (one write and two reads) and then + # close them sequentially (waiting for completion) and check + # the state of the variable + ## + + { waitpipe 1; echo 1; } > $var 2> /dev/null & + waitstart 1 + # zero length file should exist + [ -e $var ] || exit 1 + # second and third delayed close + { waitpipe 2; } < $var & + waitstart 2 + { waitpipe 3; } < $var & + waitstart 3 + # close first fd + endjob 1 + # var should only be deleted on last close + [ -e $var ] || exit 1 + # close second fd + endjob 2 + [ -e $var ] || exit 1 + # file should go on last close + endjob 3 + [ ! -e $var ] || exit 1 +} + +test_multiple_create() +{ + ## + # set multiple threads to access the variable but delay + # the final write to check the close of 2 and 3. The + # final write should succeed in creating the variable + ## + { waitpipe 1; printf '\x07\x00\x00\x00\x54'; } > $var & + waitstart 1 + [ -e $var -a ! -s $var ] || exit 1 + { waitpipe 2; } < $var & + waitstart 2 + { waitpipe 3; } < $var & + waitstart 3 + # close second and third fds + endjob 2 + # var should only be created (have size) on last close + [ -e $var -a ! -s $var ] || exit 1 + endjob 3 + [ -e $var -a ! -s $var ] || exit 1 + # close first fd + endjob 1 + # variable should still exist + [ -s $var ] || exit 1 + file_cleanup $var +} + +test_multiple_delete_on_write() { + ## + # delete the variable on final write; seqencing similar + # to test_multiple_create() + ## + printf '\x07\x00\x00\x00\x54' > $var + chattr -i $var + { waitpipe 1; printf '\x07\x00\x00\x00'; } > $var & + waitstart 1 + [ -e $var -a -s $var ] || exit 1 + { waitpipe 2; } < $var & + waitstart 2 + { waitpipe 3; } < $var & + waitstart 3 + # close first fd; write should set variable size to zero + endjob 1 + # var should only be deleted on last close + [ -e $var -a ! -s $var ] || exit 1 + endjob 2 + [ -e $var ] || exit 1 + # close last fd + endjob 3 + # variable should now be removed + [ ! -e $var ] || exit 1 +} + check_prereqs rc=0 @@ -194,5 +369,10 @@ run_test test_zero_size_delete run_test test_open_unlink run_test test_valid_filenames run_test test_invalid_filenames +run_test test_no_set_size +setup_test_multiple +run_test test_multiple_zero_size +run_test test_multiple_create +run_test test_multiple_delete_on_write exit $rc |