mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 09:15:42 +07:00
c7db6ffb83
When sysctl test is skipped because of unmet dependencies and/or unsupported configuration, it exits with error which is treated as a fail by the Kselftest framework. This leads to false negative result even when the test could not be run. Change it to return kselftest skip code when a test gets skipped to clearly report that the test could not be run. Changed return code to kselftest skip code in skip error legs that check requirements and module probe test error leg. Kselftest framework SKIP code is 4 and the framework prints appropriate messages to indicate that the test is skipped. Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
781 lines
15 KiB
Bash
Executable File
781 lines
15 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the Free
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# Software Foundation; either version 2 of the License, or at your option any
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# later version; or, when distributed separately from the Linux kernel or
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# when incorporated into other software packages, subject to the following
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# license:
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of copyleft-next (version 0.3.1 or later) as published
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# at http://copyleft-next.org/.
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# This performs a series tests against the proc sysctl interface.
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# Kselftest framework requirement - SKIP code is 4.
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ksft_skip=4
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TEST_NAME="sysctl"
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TEST_DRIVER="test_${TEST_NAME}"
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TEST_DIR=$(dirname $0)
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TEST_FILE=$(mktemp)
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# This represents
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#
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# TEST_ID:TEST_COUNT:ENABLED
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#
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# TEST_ID: is the test id number
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# TEST_COUNT: number of times we should run the test
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# ENABLED: 1 if enabled, 0 otherwise
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#
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# Once these are enabled please leave them as-is. Write your own test,
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# we have tons of space.
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ALL_TESTS="0001:1:1"
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ALL_TESTS="$ALL_TESTS 0002:1:1"
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ALL_TESTS="$ALL_TESTS 0003:1:1"
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ALL_TESTS="$ALL_TESTS 0004:1:1"
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ALL_TESTS="$ALL_TESTS 0005:3:1"
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test_modprobe()
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{
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if [ ! -d $DIR ]; then
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echo "$0: $DIR not present" >&2
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echo "You must have the following enabled in your kernel:" >&2
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cat $TEST_DIR/config >&2
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exit $ksft_skip
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fi
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}
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function allow_user_defaults()
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{
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if [ -z $DIR ]; then
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DIR="/sys/module/test_sysctl/"
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fi
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if [ -z $DEFAULT_NUM_TESTS ]; then
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DEFAULT_NUM_TESTS=50
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fi
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if [ -z $SYSCTL ]; then
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SYSCTL="/proc/sys/debug/test_sysctl"
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fi
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if [ -z $PROD_SYSCTL ]; then
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PROD_SYSCTL="/proc/sys"
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fi
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if [ -z $WRITES_STRICT ]; then
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WRITES_STRICT="${PROD_SYSCTL}/kernel/sysctl_writes_strict"
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fi
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}
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function check_production_sysctl_writes_strict()
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{
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echo -n "Checking production write strict setting ... "
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if [ ! -e ${WRITES_STRICT} ]; then
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echo "FAIL, but skip in case of old kernel" >&2
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else
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old_strict=$(cat ${WRITES_STRICT})
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if [ "$old_strict" = "1" ]; then
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echo "ok"
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else
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echo "FAIL, strict value is 0 but force to 1 to continue" >&2
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echo "1" > ${WRITES_STRICT}
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fi
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fi
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if [ -z $PAGE_SIZE ]; then
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PAGE_SIZE=$(getconf PAGESIZE)
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fi
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if [ -z $MAX_DIGITS ]; then
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MAX_DIGITS=$(($PAGE_SIZE/8))
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fi
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if [ -z $INT_MAX ]; then
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INT_MAX=$(getconf INT_MAX)
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fi
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if [ -z $UINT_MAX ]; then
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UINT_MAX=$(getconf UINT_MAX)
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fi
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}
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test_reqs()
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{
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uid=$(id -u)
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if [ $uid -ne 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 ! which perl 2> /dev/null > /dev/null; then
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echo "$0: You need perl installed"
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exit $ksft_skip
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fi
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if ! which getconf 2> /dev/null > /dev/null; then
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echo "$0: You need getconf installed"
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exit $ksft_skip
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fi
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if ! which diff 2> /dev/null > /dev/null; then
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echo "$0: You need diff installed"
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exit $ksft_skip
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fi
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}
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function load_req_mod()
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{
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if [ ! -d $DIR ]; then
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if ! modprobe -q -n $TEST_DRIVER; then
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echo "$0: module $TEST_DRIVER not found [SKIP]"
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exit $ksft_skip
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fi
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modprobe $TEST_DRIVER
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if [ $? -ne 0 ]; then
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exit
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fi
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fi
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}
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reset_vals()
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{
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VAL=""
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TRIGGER=$(basename ${TARGET})
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case "$TRIGGER" in
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int_0001)
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VAL="60"
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;;
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int_0002)
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VAL="1"
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;;
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uint_0001)
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VAL="314"
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;;
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string_0001)
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VAL="(none)"
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;;
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*)
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;;
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esac
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echo -n $VAL > $TARGET
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}
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set_orig()
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{
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if [ ! -z $TARGET ]; then
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echo "${ORIG}" > "${TARGET}"
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fi
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}
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set_test()
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{
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echo "${TEST_STR}" > "${TARGET}"
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}
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verify()
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{
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local seen
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seen=$(cat "$1")
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if [ "${seen}" != "${TEST_STR}" ]; then
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return 1
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fi
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return 0
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}
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verify_diff_w()
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{
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echo "$TEST_STR" | diff -q -w -u - $1
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return $?
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}
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test_rc()
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{
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if [[ $rc != 0 ]]; then
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echo "Failed test, return value: $rc" >&2
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exit $rc
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fi
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}
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test_finish()
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{
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set_orig
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rm -f "${TEST_FILE}"
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if [ ! -z ${old_strict} ]; then
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echo ${old_strict} > ${WRITES_STRICT}
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fi
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exit $rc
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}
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run_numerictests()
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{
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echo "== Testing sysctl behavior against ${TARGET} =="
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rc=0
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echo -n "Writing test file ... "
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echo "${TEST_STR}" > "${TEST_FILE}"
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if ! verify "${TEST_FILE}"; then
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echo "FAIL" >&2
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exit 1
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else
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echo "ok"
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fi
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echo -n "Checking sysctl is not set to test value ... "
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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exit 1
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else
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echo "ok"
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fi
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echo -n "Writing sysctl from shell ... "
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set_test
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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exit 1
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else
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echo "ok"
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fi
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echo -n "Resetting sysctl to original value ... "
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set_orig
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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exit 1
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else
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echo "ok"
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fi
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# Now that we've validated the sanity of "set_test" and "set_orig",
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# we can use those functions to set starting states before running
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# specific behavioral tests.
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echo -n "Writing entire sysctl in single write ... "
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set_orig
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dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Writing middle of sysctl after synchronized seek ... "
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set_test
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dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Writing beyond end of sysctl ... "
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set_orig
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dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Writing sysctl with multiple long writes ... "
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set_orig
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(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
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dd of="${TARGET}" bs=50 2>/dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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}
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# Your test must accept digits 3 and 4 to use this
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run_limit_digit()
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{
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echo -n "Checking ignoring spaces up to PAGE_SIZE works on write ..."
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reset_vals
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LIMIT=$((MAX_DIGITS -1))
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TEST_STR="3"
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(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
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dd of="${TARGET}" 2>/dev/null
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Checking passing PAGE_SIZE of spaces fails on write ..."
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reset_vals
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LIMIT=$((MAX_DIGITS))
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TEST_STR="4"
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(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
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dd of="${TARGET}" 2>/dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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}
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# You are using an int
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run_limit_digit_int()
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{
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echo -n "Testing INT_MAX works ..."
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reset_vals
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TEST_STR="$INT_MAX"
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echo -n $TEST_STR > $TARGET
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing INT_MAX + 1 will fail as expected..."
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reset_vals
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let TEST_STR=$INT_MAX+1
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echo -n $TEST_STR > $TARGET 2> /dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing negative values will work as expected..."
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reset_vals
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TEST_STR="-3"
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echo -n $TEST_STR > $TARGET 2> /dev/null
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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}
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# You used an int array
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run_limit_digit_int_array()
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{
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echo -n "Testing array works as expected ... "
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TEST_STR="4 3 2 1"
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echo -n $TEST_STR > $TARGET
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if ! verify_diff_w "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing skipping trailing array elements works ... "
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# Do not reset_vals, carry on the values from the last test.
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# If we only echo in two digits the last two are left intact
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TEST_STR="100 101"
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echo -n $TEST_STR > $TARGET
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# After we echo in, to help diff we need to set on TEST_STR what
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# we expect the result to be.
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TEST_STR="100 101 2 1"
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if ! verify_diff_w "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing PAGE_SIZE limit on array works ... "
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# Do not reset_vals, carry on the values from the last test.
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# Even if you use an int array, you are still restricted to
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# MAX_DIGITS, this is a known limitation. Test limit works.
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LIMIT=$((MAX_DIGITS -1))
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TEST_STR="9"
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(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
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dd of="${TARGET}" 2>/dev/null
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TEST_STR="9 101 2 1"
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if ! verify_diff_w "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing exceeding PAGE_SIZE limit fails as expected ... "
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# Do not reset_vals, carry on the values from the last test.
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# Now go over limit.
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LIMIT=$((MAX_DIGITS))
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TEST_STR="7"
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(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
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dd of="${TARGET}" 2>/dev/null
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TEST_STR="7 101 2 1"
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if verify_diff_w "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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}
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# You are using an unsigned int
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run_limit_digit_uint()
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{
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echo -n "Testing UINT_MAX works ..."
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reset_vals
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TEST_STR="$UINT_MAX"
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echo -n $TEST_STR > $TARGET
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing UINT_MAX + 1 will fail as expected..."
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reset_vals
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TEST_STR=$(($UINT_MAX+1))
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echo -n $TEST_STR > $TARGET 2> /dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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echo -n "Testing negative values will not work as expected ..."
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reset_vals
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TEST_STR="-3"
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echo -n $TEST_STR > $TARGET 2> /dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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}
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run_stringtests()
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{
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echo -n "Writing entire sysctl in short writes ... "
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set_orig
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dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
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if ! verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Writing middle of sysctl after unsynchronized seek ... "
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set_test
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dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
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if verify "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
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set_orig
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perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
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dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
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if ! grep -q B "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Checking sysctl keeps original string on overflow append ... "
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set_orig
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perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
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dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
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if grep -q B "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Checking sysctl stays NULL terminated on write ... "
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set_orig
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perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
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dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
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if grep -q B "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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echo -n "Checking sysctl stays NULL terminated on overwrite ... "
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set_orig
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perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
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dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
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if grep -q B "${TARGET}"; then
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echo "FAIL" >&2
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rc=1
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else
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echo "ok"
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fi
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test_rc
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}
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sysctl_test_0001()
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{
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TARGET="${SYSCTL}/int_0001"
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reset_vals
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ORIG=$(cat "${TARGET}")
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TEST_STR=$(( $ORIG + 1 ))
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run_numerictests
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run_limit_digit
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}
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sysctl_test_0002()
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{
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TARGET="${SYSCTL}/string_0001"
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reset_vals
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ORIG=$(cat "${TARGET}")
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TEST_STR="Testing sysctl"
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# Only string sysctls support seeking/appending.
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MAXLEN=65
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run_numerictests
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run_stringtests
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}
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sysctl_test_0003()
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{
|
|
TARGET="${SYSCTL}/int_0002"
|
|
reset_vals
|
|
ORIG=$(cat "${TARGET}")
|
|
TEST_STR=$(( $ORIG + 1 ))
|
|
|
|
run_numerictests
|
|
run_limit_digit
|
|
run_limit_digit_int
|
|
}
|
|
|
|
sysctl_test_0004()
|
|
{
|
|
TARGET="${SYSCTL}/uint_0001"
|
|
reset_vals
|
|
ORIG=$(cat "${TARGET}")
|
|
TEST_STR=$(( $ORIG + 1 ))
|
|
|
|
run_numerictests
|
|
run_limit_digit
|
|
run_limit_digit_uint
|
|
}
|
|
|
|
sysctl_test_0005()
|
|
{
|
|
TARGET="${SYSCTL}/int_0003"
|
|
reset_vals
|
|
ORIG=$(cat "${TARGET}")
|
|
|
|
run_limit_digit_int_array
|
|
}
|
|
|
|
list_tests()
|
|
{
|
|
echo "Test ID list:"
|
|
echo
|
|
echo "TEST_ID x NUM_TEST"
|
|
echo "TEST_ID: Test ID"
|
|
echo "NUM_TESTS: Number of recommended times to run the test"
|
|
echo
|
|
echo "0001 x $(get_test_count 0001) - tests proc_dointvec_minmax()"
|
|
echo "0002 x $(get_test_count 0002) - tests proc_dostring()"
|
|
echo "0003 x $(get_test_count 0003) - tests proc_dointvec()"
|
|
echo "0004 x $(get_test_count 0004) - tests proc_douintvec()"
|
|
echo "0005 x $(get_test_count 0005) - tests proc_douintvec() array"
|
|
}
|
|
|
|
test_reqs
|
|
|
|
usage()
|
|
{
|
|
NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .)
|
|
let NUM_TESTS=$NUM_TESTS+1
|
|
MAX_TEST=$(printf "%04d\n" $NUM_TESTS)
|
|
echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |"
|
|
echo " [ -s <4-number-digit> ] | [ -c <4-number-digit> <test- count>"
|
|
echo " [ all ] [ -h | --help ] [ -l ]"
|
|
echo ""
|
|
echo "Valid tests: 0001-$MAX_TEST"
|
|
echo ""
|
|
echo " all Runs all tests (default)"
|
|
echo " -t Run test ID the number amount of times is recommended"
|
|
echo " -w Watch test ID run until it runs into an error"
|
|
echo " -c Run test ID once"
|
|
echo " -s Run test ID x test-count number of times"
|
|
echo " -l List all test ID list"
|
|
echo " -h|--help Help"
|
|
echo
|
|
echo "If an error every occurs execution will immediately terminate."
|
|
echo "If you are adding a new test try using -w <test-ID> first to"
|
|
echo "make sure the test passes a series of tests."
|
|
echo
|
|
echo Example uses:
|
|
echo
|
|
echo "$TEST_NAME.sh -- executes all tests"
|
|
echo "$TEST_NAME.sh -t 0002 -- Executes test ID 0002 number of times is recomended"
|
|
echo "$TEST_NAME.sh -w 0002 -- Watch test ID 0002 run until an error occurs"
|
|
echo "$TEST_NAME.sh -s 0002 -- Run test ID 0002 once"
|
|
echo "$TEST_NAME.sh -c 0002 3 -- Run test ID 0002 three times"
|
|
echo
|
|
list_tests
|
|
exit 1
|
|
}
|
|
|
|
function test_num()
|
|
{
|
|
re='^[0-9]+$'
|
|
if ! [[ $1 =~ $re ]]; then
|
|
usage
|
|
fi
|
|
}
|
|
|
|
function get_test_count()
|
|
{
|
|
test_num $1
|
|
TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}')
|
|
LAST_TWO=${TEST_DATA#*:*}
|
|
echo ${LAST_TWO%:*}
|
|
}
|
|
|
|
function get_test_enabled()
|
|
{
|
|
test_num $1
|
|
TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$1'}')
|
|
echo ${TEST_DATA#*:*:}
|
|
}
|
|
|
|
function run_all_tests()
|
|
{
|
|
for i in $ALL_TESTS ; do
|
|
TEST_ID=${i%:*:*}
|
|
ENABLED=$(get_test_enabled $TEST_ID)
|
|
TEST_COUNT=$(get_test_count $TEST_ID)
|
|
if [[ $ENABLED -eq "1" ]]; then
|
|
test_case $TEST_ID $TEST_COUNT
|
|
fi
|
|
done
|
|
}
|
|
|
|
function watch_log()
|
|
{
|
|
if [ $# -ne 3 ]; then
|
|
clear
|
|
fi
|
|
date
|
|
echo "Running test: $2 - run #$1"
|
|
}
|
|
|
|
function watch_case()
|
|
{
|
|
i=0
|
|
while [ 1 ]; do
|
|
|
|
if [ $# -eq 1 ]; then
|
|
test_num $1
|
|
watch_log $i ${TEST_NAME}_test_$1
|
|
${TEST_NAME}_test_$1
|
|
else
|
|
watch_log $i all
|
|
run_all_tests
|
|
fi
|
|
let i=$i+1
|
|
done
|
|
}
|
|
|
|
function test_case()
|
|
{
|
|
NUM_TESTS=$DEFAULT_NUM_TESTS
|
|
if [ $# -eq 2 ]; then
|
|
NUM_TESTS=$2
|
|
fi
|
|
|
|
i=0
|
|
while [ $i -lt $NUM_TESTS ]; do
|
|
test_num $1
|
|
watch_log $i ${TEST_NAME}_test_$1 noclear
|
|
RUN_TEST=${TEST_NAME}_test_$1
|
|
$RUN_TEST
|
|
let i=$i+1
|
|
done
|
|
}
|
|
|
|
function parse_args()
|
|
{
|
|
if [ $# -eq 0 ]; then
|
|
run_all_tests
|
|
else
|
|
if [[ "$1" = "all" ]]; then
|
|
run_all_tests
|
|
elif [[ "$1" = "-w" ]]; then
|
|
shift
|
|
watch_case $@
|
|
elif [[ "$1" = "-t" ]]; then
|
|
shift
|
|
test_num $1
|
|
test_case $1 $(get_test_count $1)
|
|
elif [[ "$1" = "-c" ]]; then
|
|
shift
|
|
test_num $1
|
|
test_num $2
|
|
test_case $1 $2
|
|
elif [[ "$1" = "-s" ]]; then
|
|
shift
|
|
test_case $1 1
|
|
elif [[ "$1" = "-l" ]]; then
|
|
list_tests
|
|
elif [[ "$1" = "-h" || "$1" = "--help" ]]; then
|
|
usage
|
|
else
|
|
usage
|
|
fi
|
|
fi
|
|
}
|
|
|
|
test_reqs
|
|
allow_user_defaults
|
|
check_production_sysctl_writes_strict
|
|
test_modprobe
|
|
load_req_mod
|
|
|
|
trap "test_finish" EXIT
|
|
|
|
parse_args $@
|
|
|
|
exit 0
|