From patchwork Thu May 25 23:37:25 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Chamberlain X-Patchwork-Id: 9749437 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E785B6032A for ; Thu, 25 May 2017 23:39:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D81F628381 for ; Thu, 25 May 2017 23:39:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CB26C283D9; Thu, 25 May 2017 23:39:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9C5F728381 for ; Thu, 25 May 2017 23:39:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1166079AbdEYXhy (ORCPT ); Thu, 25 May 2017 19:37:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:32910 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967261AbdEYXhj (ORCPT ); Thu, 25 May 2017 19:37:39 -0400 Received: from garbanzo.do-not-panic.com (c-73-15-241-2.hsd1.ca.comcast.net [73.15.241.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6C397239F2; Thu, 25 May 2017 23:37:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C397239F2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=mcgrof@kernel.org From: "Luis R. Rodriguez" To: akpm@linux-foundation.org, keescook@chromium.org Cc: alan@linux.intel.com, tytso@mit.edu, gregkh@linuxfoundation.org, torvalds@linux.intel.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, "Luis R. Rodriguez" Subject: [PATCH 2/6] test_sysctl: add generic script to expand on tests Date: Thu, 25 May 2017 16:37:25 -0700 Message-Id: <20170525233729.18530-3-mcgrof@kernel.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170525233729.18530-1-mcgrof@kernel.org> References: <20170525233729.18530-1-mcgrof@kernel.org> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This adds a generic script to let us more easily add more tests cases. Since we really have only two types of tests cases just fold them into the one file. Each test unit is now identified into its separate function: # ./sysctl.sh -l Test ID list: TEST_ID x NUM_TEST TEST_ID: Test ID NUM_TESTS: Number of recommended times to run the test 0001 x 1 - tests proc_dointvec_minmax() 0002 x 1 - tests proc_dostring() For now we start off with what we had before, and run only each test once. We can now watch a test case until it fails: ./sysctl.sh -w 0002 We can also run a test case x number of times, say we want to run a test case 100 times: ./sysctl.sh -c 0001 100 To run a test case only once, for example: ./sysctl.sh -s 0002 The default settings are specified at the top of sysctl.sh. Signed-off-by: Luis R. Rodriguez --- tools/testing/selftests/sysctl/Makefile | 3 +- tools/testing/selftests/sysctl/common_tests | 109 ------ tools/testing/selftests/sysctl/run_numerictests | 10 - tools/testing/selftests/sysctl/run_stringtests | 77 ---- tools/testing/selftests/sysctl/sysctl.sh | 466 ++++++++++++++++++++++++ 5 files changed, 467 insertions(+), 198 deletions(-) delete mode 100644 tools/testing/selftests/sysctl/common_tests delete mode 100755 tools/testing/selftests/sysctl/run_numerictests delete mode 100755 tools/testing/selftests/sysctl/run_stringtests create mode 100755 tools/testing/selftests/sysctl/sysctl.sh diff --git a/tools/testing/selftests/sysctl/Makefile b/tools/testing/selftests/sysctl/Makefile index b3c33e071f10..95c320b354e8 100644 --- a/tools/testing/selftests/sysctl/Makefile +++ b/tools/testing/selftests/sysctl/Makefile @@ -4,8 +4,7 @@ # No binaries, but make sure arg-less "make" doesn't trigger "run_tests". all: -TEST_PROGS := run_numerictests run_stringtests -TEST_FILES := common_tests +TEST_PROGS := sysctl.sh include ../lib.mk diff --git a/tools/testing/selftests/sysctl/common_tests b/tools/testing/selftests/sysctl/common_tests deleted file mode 100644 index 17d534b1b7b4..000000000000 --- a/tools/testing/selftests/sysctl/common_tests +++ /dev/null @@ -1,109 +0,0 @@ -#!/bin/sh - -TEST_FILE=$(mktemp) - -echo "== Testing sysctl behavior against ${TARGET} ==" - -set_orig() -{ - echo "${ORIG}" > "${TARGET}" -} - -set_test() -{ - echo "${TEST_STR}" > "${TARGET}" -} - -verify() -{ - local seen - seen=$(cat "$1") - if [ "${seen}" != "${TEST_STR}" ]; then - return 1 - fi - return 0 -} - -trap 'set_orig; rm -f "${TEST_FILE}"' EXIT - -rc=0 - -echo -n "Writing test file ... " -echo "${TEST_STR}" > "${TEST_FILE}" -if ! verify "${TEST_FILE}"; then - echo "FAIL" >&2 - exit 1 -else - echo "ok" -fi - -echo -n "Checking sysctl is not set to test value ... " -if verify "${TARGET}"; then - echo "FAIL" >&2 - exit 1 -else - echo "ok" -fi - -echo -n "Writing sysctl from shell ... " -set_test -if ! verify "${TARGET}"; then - echo "FAIL" >&2 - exit 1 -else - echo "ok" -fi - -echo -n "Resetting sysctl to original value ... " -set_orig -if verify "${TARGET}"; then - echo "FAIL" >&2 - exit 1 -else - echo "ok" -fi - -# Now that we've validated the sanity of "set_test" and "set_orig", -# we can use those functions to set starting states before running -# specific behavioral tests. - -echo -n "Writing entire sysctl in single write ... " -set_orig -dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null -if ! verify "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Writing middle of sysctl after synchronized seek ... " -set_test -dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null -if ! verify "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Writing beyond end of sysctl ... " -set_orig -dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null -if verify "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Writing sysctl with multiple long writes ... " -set_orig -(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \ - dd of="${TARGET}" bs=50 2>/dev/null -if verify "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi diff --git a/tools/testing/selftests/sysctl/run_numerictests b/tools/testing/selftests/sysctl/run_numerictests deleted file mode 100755 index cdfeef96568c..000000000000 --- a/tools/testing/selftests/sysctl/run_numerictests +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/sh - -SYSCTL="/proc/sys/debug/test_sysctl/" -TARGET="${SYSCTL}/int_0001" -ORIG=$(cat "${TARGET}") -TEST_STR=$(( $ORIG + 1 )) - -. ./common_tests - -exit $rc diff --git a/tools/testing/selftests/sysctl/run_stringtests b/tools/testing/selftests/sysctl/run_stringtests deleted file mode 100755 index 15a646b2c527..000000000000 --- a/tools/testing/selftests/sysctl/run_stringtests +++ /dev/null @@ -1,77 +0,0 @@ -#!/bin/sh - -SYSCTL="/proc/sys/debug/test_sysctl/" -TARGET="${SYSCTL}/string_0001" -ORIG=$(cat "${TARGET}") -TEST_STR="Testing sysctl" - -. ./common_tests - -# Only string sysctls support seeking/appending. -MAXLEN=65 - -echo -n "Writing entire sysctl in short writes ... " -set_orig -dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null -if ! verify "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Writing middle of sysctl after unsynchronized seek ... " -set_test -dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null -if verify "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Checking sysctl maxlen is at least $MAXLEN ... " -set_orig -perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \ - dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null -if ! grep -q B "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Checking sysctl keeps original string on overflow append ... " -set_orig -perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \ - dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null -if grep -q B "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Checking sysctl stays NULL terminated on write ... " -set_orig -perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \ - dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null -if grep -q B "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -echo -n "Checking sysctl stays NULL terminated on overwrite ... " -set_orig -perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \ - dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null -if grep -q B "${TARGET}"; then - echo "FAIL" >&2 - rc=1 -else - echo "ok" -fi - -exit $rc diff --git a/tools/testing/selftests/sysctl/sysctl.sh b/tools/testing/selftests/sysctl/sysctl.sh new file mode 100755 index 000000000000..5d811c938920 --- /dev/null +++ b/tools/testing/selftests/sysctl/sysctl.sh @@ -0,0 +1,466 @@ +#!/bin/bash +# Copyright (C) 2017 Luis R. Rodriguez +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the Free +# Software Foundation; either version 2 of the License, or at your option any +# later version; or, when distributed separately from the Linux kernel or +# when incorporated into other software packages, subject to the following +# license: +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of copyleft-next (version 0.3.1 or later) as published +# at http://copyleft-next.org/. + +# This performs a series tests against the proc sysctl interface. + +TEST_NAME="sysctl" +TEST_DRIVER="test_${TEST_NAME}" +TEST_DIR=$(dirname $0) +TEST_FILE=$(mktemp) + +# This represents +# +# TEST_ID:TEST_COUNT:ENABLED +# +# TEST_ID: is the test id number +# TEST_COUNT: number of times we should run the test +# ENABLED: 1 if enabled, 0 otherwise +# +# Once these are enabled please leave them as-is. Write your own test, +# we have tons of space. +ALL_TESTS="0001:1:1" +ALL_TESTS="$ALL_TESTS 0002:1:1" + +test_modprobe() +{ + if [ ! -d $DIR ]; then + echo "$0: $DIR not present" >&2 + echo "You must have the following enabled in your kernel:" >&2 + cat $TEST_DIR/config >&2 + exit 1 + fi +} + +function allow_user_defaults() +{ + if [ -z $DIR ]; then + DIR="/sys/module/test_sysctl/" + fi + if [ -z $DEFAULT_NUM_TESTS ]; then + DEFAULT_NUM_TESTS=50 + fi + if [ -z $SYSCTL ]; then + SYSCTL="/proc/sys/debug/test_sysctl" + fi +} + +test_reqs() +{ + uid=$(id -u) + if [ $uid -ne 0 ]; then + echo $msg must be run as root >&2 + exit 0 + fi + + if ! which perl 2> /dev/null > /dev/null; then + echo "$0: You need perl installed" + exit 1 + fi +} + +function load_req_mod() +{ + trap "test_modprobe" EXIT + + if [ ! -d $DIR ]; then + modprobe $TEST_DRIVER + if [ $? -ne 0 ]; then + exit + fi + fi +} + +set_orig() +{ + if [ ! -z $TARGET ]; then + echo "${ORIG}" > "${TARGET}" + fi +} + +set_test() +{ + echo "${TEST_STR}" > "${TARGET}" +} + +verify() +{ + local seen + seen=$(cat "$1") + if [ "${seen}" != "${TEST_STR}" ]; then + return 1 + fi + return 0 +} + +test_rc() +{ + if [[ $rc != 0 ]]; then + echo "Failed test, return value: $rc" >&2 + exit $rc + fi +} + +test_finish() +{ + set_orig + rm -f "${TEST_FILE}" +} + +run_numerictests() +{ + echo "== Testing sysctl behavior against ${TARGET} ==" + + rc=0 + + echo -n "Writing test file ... " + echo "${TEST_STR}" > "${TEST_FILE}" + if ! verify "${TEST_FILE}"; then + echo "FAIL" >&2 + exit 1 + else + echo "ok" + fi + + echo -n "Checking sysctl is not set to test value ... " + if verify "${TARGET}"; then + echo "FAIL" >&2 + exit 1 + else + echo "ok" + fi + + echo -n "Writing sysctl from shell ... " + set_test + if ! verify "${TARGET}"; then + echo "FAIL" >&2 + exit 1 + else + echo "ok" + fi + + echo -n "Resetting sysctl to original value ... " + set_orig + if verify "${TARGET}"; then + echo "FAIL" >&2 + exit 1 + else + echo "ok" + fi + + # Now that we've validated the sanity of "set_test" and "set_orig", + # we can use those functions to set starting states before running + # specific behavioral tests. + + echo -n "Writing entire sysctl in single write ... " + set_orig + dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null + if ! verify "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Writing middle of sysctl after synchronized seek ... " + set_test + dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null + if ! verify "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Writing beyond end of sysctl ... " + set_orig + dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null + if verify "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Writing sysctl with multiple long writes ... " + set_orig + (perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \ + dd of="${TARGET}" bs=50 2>/dev/null + if verify "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + test_rc +} + +run_stringtests() +{ + echo -n "Writing entire sysctl in short writes ... " + set_orig + dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null + if ! verify "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Writing middle of sysctl after unsynchronized seek ... " + set_test + dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null + if verify "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Checking sysctl maxlen is at least $MAXLEN ... " + set_orig + perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \ + dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null + if ! grep -q B "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Checking sysctl keeps original string on overflow append ... " + set_orig + perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \ + dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null + if grep -q B "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Checking sysctl stays NULL terminated on write ... " + set_orig + perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \ + dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null + if grep -q B "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + echo -n "Checking sysctl stays NULL terminated on overwrite ... " + set_orig + perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \ + dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null + if grep -q B "${TARGET}"; then + echo "FAIL" >&2 + rc=1 + else + echo "ok" + fi + + test_rc +} + +sysctl_test_0001() +{ + TARGET="${SYSCTL}/int_0001" + ORIG=$(cat "${TARGET}") + TEST_STR=$(( $ORIG + 1 )) + + run_numerictests +} + +sysctl_test_0002() +{ + TARGET="${SYSCTL}/string_0001" + ORIG=$(cat "${TARGET}") + TEST_STR="Testing sysctl" + # Only string sysctls support seeking/appending. + MAXLEN=65 + + run_numerictests + run_stringtests +} + +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 $(get_test_count 0002) - tests proc_dostring()" +} + +test_reqs + +usage() +{ + NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .) + let NUM_TESTS=$NUM_TESTS+1 + MAX_TEST=$(printf "%04d\n" $NUM_TESTS) + echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |" + echo " [ -s <4-number-digit> ] | [ -c <4-number-digit> " + echo " [ all ] [ -h | --help ] [ -l ]" + echo "" + echo "Valid tests: 0001-$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 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 +load_req_mod + +trap "test_finish" EXIT + +parse_args $@ + +exit 0