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68707c079e
Extend the self-tests to cover the 'msgid' feature in sysdata. Verify that msgid is appended to the message when the feature is enabled and that it is not appended when the feature is disabled. Signed-off-by: Gustavo Luiz Duarte <gustavold@gmail.com> Reviewed-by: Breno Leitao <leitao@debian.org> Signed-off-by: David S. Miller <davem@davemloft.net>
272 lines
7.2 KiB
Bash
Executable file
272 lines
7.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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# SPDX-License-Identifier: GPL-2.0
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# A test that makes sure that sysdata runtime CPU data is properly set
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# when a message is sent.
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#
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# There are 3 different tests, every time sent using a random CPU.
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# - Test #1
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# * Only enable cpu_nr sysdata feature.
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# - Test #2
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# * Keep cpu_nr sysdata feature enable and enable userdata.
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# - Test #3
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# * keep userdata enabled, and disable sysdata cpu_nr feature.
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#
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# Author: Breno Leitao <leitao@debian.org>
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set -euo pipefail
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SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
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source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
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# Enable the sysdata cpu_nr feature
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function set_cpu_nr() {
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if [[ ! -f "${NETCONS_PATH}/userdata/cpu_nr_enabled" ]]
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then
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echo "Populate CPU configfs path not available in ${NETCONS_PATH}/userdata/cpu_nr_enabled" >&2
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exit "${ksft_skip}"
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fi
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echo 1 > "${NETCONS_PATH}/userdata/cpu_nr_enabled"
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}
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# Enable the taskname to be appended to sysdata
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function set_taskname() {
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if [[ ! -f "${NETCONS_PATH}/userdata/taskname_enabled" ]]
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then
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echo "Not able to enable taskname sysdata append. Configfs not available in ${NETCONS_PATH}/userdata/taskname_enabled" >&2
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exit "${ksft_skip}"
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fi
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echo 1 > "${NETCONS_PATH}/userdata/taskname_enabled"
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}
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# Enable the release to be appended to sysdata
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function set_release() {
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if [[ ! -f "${NETCONS_PATH}/userdata/release_enabled" ]]
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then
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echo "Not able to enable release sysdata append. Configfs not available in ${NETCONS_PATH}/userdata/release_enabled" >&2
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exit "${ksft_skip}"
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fi
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echo 1 > "${NETCONS_PATH}/userdata/release_enabled"
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}
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# Enable the msgid to be appended to sysdata
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function set_msgid() {
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if [[ ! -f "${NETCONS_PATH}/userdata/msgid_enabled" ]]
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then
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echo "Not able to enable msgid sysdata append. Configfs not available in ${NETCONS_PATH}/userdata/msgid_enabled" >&2
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exit "${ksft_skip}"
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fi
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echo 1 > "${NETCONS_PATH}/userdata/msgid_enabled"
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}
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# Disable the sysdata cpu_nr feature
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function unset_cpu_nr() {
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echo 0 > "${NETCONS_PATH}/userdata/cpu_nr_enabled"
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}
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# Once called, taskname=<..> will not be appended anymore
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function unset_taskname() {
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echo 0 > "${NETCONS_PATH}/userdata/taskname_enabled"
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}
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function unset_release() {
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echo 0 > "${NETCONS_PATH}/userdata/release_enabled"
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}
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function unset_msgid() {
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echo 0 > "${NETCONS_PATH}/userdata/msgid_enabled"
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}
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# Test if MSG contains sysdata
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function validate_sysdata() {
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# OUTPUT_FILE will contain something like:
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# 6.11.1-0_fbk0_rc13_509_g30d75cea12f7,13,1822,115075213798,-;netconsole selftest: netcons_gtJHM
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# userdatakey=userdatavalue
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# cpu=X
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# taskname=<taskname>
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# msgid=<id>
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# Echo is what this test uses to create the message. See runtest()
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# function
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SENDER="echo"
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if [ ! -f "$OUTPUT_FILE" ]; then
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echo "FAIL: File was not generated." >&2
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exit "${ksft_fail}"
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fi
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if ! grep -q "${MSG}" "${OUTPUT_FILE}"; then
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echo "FAIL: ${MSG} not found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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# Check if cpu=XX exists in the file and matches the one used
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# in taskset(1)
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if ! grep -q "cpu=${CPU}\+" "${OUTPUT_FILE}"; then
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echo "FAIL: 'cpu=${CPU}' not found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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if ! grep -q "taskname=${SENDER}" "${OUTPUT_FILE}"; then
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echo "FAIL: 'taskname=echo' not found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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if ! grep -q "msgid=[0-9]\+$" "${OUTPUT_FILE}"; then
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echo "FAIL: 'msgid=<id>' not found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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rm "${OUTPUT_FILE}"
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pkill_socat
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}
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function validate_release() {
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RELEASE=$(uname -r)
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if [ ! -f "$OUTPUT_FILE" ]; then
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echo "FAIL: File was not generated." >&2
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exit "${ksft_fail}"
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fi
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if ! grep -q "release=${RELEASE}" "${OUTPUT_FILE}"; then
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echo "FAIL: 'release=${RELEASE}' not found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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}
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# Test if MSG content exists in OUTPUT_FILE but no `cpu=` and `taskname=`
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# strings
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function validate_no_sysdata() {
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if [ ! -f "$OUTPUT_FILE" ]; then
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echo "FAIL: File was not generated." >&2
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exit "${ksft_fail}"
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fi
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if ! grep -q "${MSG}" "${OUTPUT_FILE}"; then
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echo "FAIL: ${MSG} not found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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if grep -q "cpu=" "${OUTPUT_FILE}"; then
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echo "FAIL: 'cpu= found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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if grep -q "taskname=" "${OUTPUT_FILE}"; then
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echo "FAIL: 'taskname= found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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if grep -q "release=" "${OUTPUT_FILE}"; then
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echo "FAIL: 'release= found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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if grep -q "msgid=" "${OUTPUT_FILE}"; then
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echo "FAIL: 'msgid= found in ${OUTPUT_FILE}" >&2
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cat "${OUTPUT_FILE}" >&2
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exit "${ksft_fail}"
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fi
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rm "${OUTPUT_FILE}"
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}
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# Start socat, send the message and wait for the file to show up in the file
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# system
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function runtest {
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# Listen for netconsole port inside the namespace and destination
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# interface
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listen_port_and_save_to "${OUTPUT_FILE}" &
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# Wait for socat to start and listen to the port.
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wait_local_port_listen "${NAMESPACE}" "${PORT}" udp
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# Send the message
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taskset -c "${CPU}" echo "${MSG}: ${TARGET}" > /dev/kmsg
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# Wait until socat saves the file to disk
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busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
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}
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# ========== #
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# Start here #
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# ========== #
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modprobe netdevsim 2> /dev/null || true
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modprobe netconsole 2> /dev/null || true
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# Check for basic system dependency and exit if not found
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check_for_dependencies
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# This test also depends on taskset(1). Check for it before starting the test
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check_for_taskset
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# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
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echo "6 5" > /proc/sys/kernel/printk
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# Remove the namespace, interfaces and netconsole target on exit
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trap cleanup EXIT
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# Create one namespace and two interfaces
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set_network
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# Create a dynamic target for netconsole
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create_dynamic_target
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#====================================================
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# TEST #1
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# Send message from a random CPU
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#====================================================
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# Random CPU in the system
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CPU=$((RANDOM % $(nproc)))
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OUTPUT_FILE="/tmp/${TARGET}_1"
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MSG="Test #1 from CPU${CPU}"
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# Enable the auto population of cpu_nr
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set_cpu_nr
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# Enable taskname to be appended to sysdata
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set_taskname
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set_release
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set_msgid
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runtest
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# Make sure the message was received in the dst part
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# and exit
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validate_release
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validate_sysdata
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#====================================================
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# TEST #2
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# This test now adds userdata together with sysdata
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# ===================================================
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# Get a new random CPU
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CPU=$((RANDOM % $(nproc)))
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OUTPUT_FILE="/tmp/${TARGET}_2"
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MSG="Test #2 from CPU${CPU}"
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set_user_data
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runtest
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validate_release
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validate_sysdata
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# ===================================================
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# TEST #3
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# Unset all sysdata, fail if any userdata is set
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# ===================================================
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CPU=$((RANDOM % $(nproc)))
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OUTPUT_FILE="/tmp/${TARGET}_3"
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MSG="Test #3 from CPU${CPU}"
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unset_cpu_nr
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unset_taskname
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unset_release
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unset_msgid
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runtest
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# At this time, cpu= shouldn't be present in the msg
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validate_no_sysdata
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exit "${ksft_pass}"
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