mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-04-10 14:48:19 -04:00
acfea93610
Extend the existing netconsole cmdline selftest to also validate that interface selection can be performed via MAC address. The test now validates that netconsole works with both interface name and MAC address, improving test coverage. Suggested-by: Breno Leitao <leitao@debian.org> Reviewed-by: Breno Leitao <leitao@debian.org> Signed-off-by: Andre Carvalho <asantostc@gmail.com> Link: https://patch.msgid.link/20250812-netcons-cmdline-selftest-v2-1-8099fb7afa9e@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
66 lines
1.9 KiB
Bash
Executable File
66 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
# This is a selftest to test cmdline arguments on netconsole.
|
|
# It exercises loading of netconsole from cmdline instead of the dynamic
|
|
# reconfiguration. This includes parsing the long netconsole= line and all the
|
|
# flow through init_netconsole().
|
|
#
|
|
# Author: Breno Leitao <leitao@debian.org>
|
|
|
|
set -euo pipefail
|
|
|
|
SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
|
|
|
|
source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
|
|
|
|
check_netconsole_module
|
|
|
|
modprobe netdevsim 2> /dev/null || true
|
|
rmmod netconsole 2> /dev/null || true
|
|
|
|
# Check for basic system dependency and exit if not found
|
|
# check_for_dependencies
|
|
# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
|
|
echo "6 5" > /proc/sys/kernel/printk
|
|
# Remove the namespace and network interfaces
|
|
trap do_cleanup EXIT
|
|
# Create one namespace and two interfaces
|
|
set_network
|
|
|
|
# Run the test twice, with different cmdline parameters
|
|
for BINDMODE in "ifname" "mac"
|
|
do
|
|
echo "Running with bind mode: ${BINDMODE}" >&2
|
|
# Create the command line for netconsole, with the configuration from
|
|
# the function above
|
|
CMDLINE=$(create_cmdline_str "${BINDMODE}")
|
|
|
|
# The content of kmsg will be save to the following file
|
|
OUTPUT_FILE="/tmp/${TARGET}-${BINDMODE}"
|
|
|
|
# Load the module, with the cmdline set
|
|
modprobe netconsole "${CMDLINE}"
|
|
|
|
# Listed for netconsole port inside the namespace and destination
|
|
# interface
|
|
listen_port_and_save_to "${OUTPUT_FILE}" &
|
|
# Wait for socat to start and listen to the port.
|
|
wait_local_port_listen "${NAMESPACE}" "${PORT}" udp
|
|
# Send the message
|
|
echo "${MSG}: ${TARGET}" > /dev/kmsg
|
|
# Wait until socat saves the file to disk
|
|
busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
|
|
# Make sure the message was received in the dst part
|
|
# and exit
|
|
validate_msg "${OUTPUT_FILE}"
|
|
|
|
# kill socat in case it is still running
|
|
pkill_socat
|
|
# Unload the module
|
|
rmmod netconsole
|
|
echo "${BINDMODE} : Test passed" >&2
|
|
done
|
|
|
|
exit "${ksft_pass}"
|