mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Eric Biggers
eff343fb5d
Most of the fs-verity tests fail if the fs.verity.require_signatures sysctl has been set to 1. Update them to set this sysctl to 0 at the beginning of the test and restore it to its previous value at the end. generic/577 intentionally sets this sysctl to 1. Make it restore the previous value at the end of the test rather than assuming it was 0. Also simplify _require_fsverity_builtin_signatures() to just check for the presence of the file /proc/sys/fs/verity/require_signatures rather than check whether the fs-verity keyring is listed in /proc/keys. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
118 lines
2.9 KiB
Bash
Executable File
118 lines
2.9 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright 2019 Google LLC
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#
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# FS QA Test generic/579
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#
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# Stress test for fs-verity. This tests enabling fs-verity on multiple files
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# concurrently with concurrent readers on those files (with reads occurring
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# before, during, and after the fs-verity enablement), while fsstress is also
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# running on the same filesystem.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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# Stop all subprocesses.
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$KILLALL_PROG -q $FSSTRESS_PROG
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touch $tmp.done
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wait
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_restore_fsverity_signatures
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/verity
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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_verity
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_require_command "$KILLALL_PROG" killall
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_disable_fsverity_signatures
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_scratch_mkfs_verity &>> $seqres.full
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_scratch_mount
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fsv_file_size=10000000
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nproc_enabler=$((4 * LOAD_FACTOR))
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nproc_reader=$((6 * LOAD_FACTOR))
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nproc_stress=$((3 * LOAD_FACTOR))
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runtime=$((20 * TIME_FACTOR))
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# Create the test files and start the fs-verity enabler processes.
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for ((proc = 0; proc < nproc_enabler; proc++)); do
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orig_file=$SCRATCH_MNT/orig$proc
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fsv_file=$SCRATCH_MNT/fsv$proc
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head -c $fsv_file_size /dev/urandom > $orig_file
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(
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while [ ! -e $tmp.done ]; do
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rm -f $fsv_file
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cp $orig_file $fsv_file
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_fsv_enable $fsv_file
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# Give the readers some time to read from the file.
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sleep 0.$((RANDOM % 100))
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done
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) &
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done
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# Start the reader processes.
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for ((proc = 0; proc < nproc_reader; proc++)); do
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(
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while [ ! -e $tmp.done ]; do
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# Choose a random file for each iteration, so that
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# sometimes multiple processes read from the same file.
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i=$((RANDOM % nproc_enabler))
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orig_file=$SCRATCH_MNT/orig$i
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fsv_file=$SCRATCH_MNT/fsv$i
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# After the copy from $orig_file to $fsv_file has
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# completed, the contents of these two files should
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# match, regardless of whether verity has been enabled
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# or not yet (or is currently being enabled).
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cmp $orig_file $fsv_file |& _filter_scratch | \
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grep -v "SCRATCH_MNT/fsv$i: No such file or directory" | \
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grep -v "EOF on SCRATCH_MNT/fsv$i"
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_fsv_measure $fsv_file 2>&1 >/dev/null | \
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grep -v "No such file or directory" | \
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grep -v "No data available"
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done
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) &
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done
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# Start a process that occasionally runs 'sync && drop_caches'. This makes more
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# reads go through fs-verity for real, rather than just returning pagecache.
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(
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while [ ! -e $tmp.done ]; do
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sleep 2.$((RANDOM % 100))
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sync && echo 3 > /proc/sys/vm/drop_caches
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done
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) &
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# Start the fsstress processes.
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$FSSTRESS_PROG $FSSTRESS_AVOID -p $nproc_stress -l 0 -d $SCRATCH_MNT/stressdir \
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>> $seqres.full 2>&1 &
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# Run for a while.
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sleep $runtime
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echo "Silence is golden"
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# success, all done
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status=0
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exit
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