1*b3827c91SAndre Carvalho#!/usr/bin/env bash 2*b3827c91SAndre Carvalho# SPDX-License-Identifier: GPL-2.0 3*b3827c91SAndre Carvalho 4*b3827c91SAndre Carvalho# This is a selftest to test cmdline arguments on netconsole. 5*b3827c91SAndre Carvalho# It exercises loading of netconsole from cmdline instead of the dynamic 6*b3827c91SAndre Carvalho# reconfiguration. This includes parsing the long netconsole= line and all the 7*b3827c91SAndre Carvalho# flow through init_netconsole(). 8*b3827c91SAndre Carvalho# 9*b3827c91SAndre Carvalho# Author: Breno Leitao <leitao@debian.org> 10*b3827c91SAndre Carvalho 11*b3827c91SAndre Carvalhoset -euo pipefail 12*b3827c91SAndre Carvalho 13*b3827c91SAndre CarvalhoSCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")") 14*b3827c91SAndre Carvalho 15*b3827c91SAndre Carvalhosource "${SCRIPTDIR}"/../lib/sh/lib_netcons.sh 16*b3827c91SAndre Carvalho 17*b3827c91SAndre Carvalhocheck_netconsole_module 18*b3827c91SAndre Carvalho 19*b3827c91SAndre Carvalhomodprobe netdevsim 2> /dev/null || true 20*b3827c91SAndre Carvalhormmod netconsole 2> /dev/null || true 21*b3827c91SAndre Carvalho 22*b3827c91SAndre Carvalho# Check for basic system dependency and exit if not found 23*b3827c91SAndre Carvalho# check_for_dependencies 24*b3827c91SAndre Carvalho# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5) 25*b3827c91SAndre Carvalhoecho "6 5" > /proc/sys/kernel/printk 26*b3827c91SAndre Carvalho# Remove the namespace and network interfaces 27*b3827c91SAndre Carvalhotrap do_cleanup EXIT 28*b3827c91SAndre Carvalho# Create one namespace and two interfaces 29*b3827c91SAndre Carvalhoset_network 30*b3827c91SAndre Carvalho 31*b3827c91SAndre Carvalho# Run the test twice, with different cmdline parameters 32*b3827c91SAndre Carvalhofor BINDMODE in "ifname" "mac" 33*b3827c91SAndre Carvalhodo 34*b3827c91SAndre Carvalho echo "Running with bind mode: ${BINDMODE}" >&2 35*b3827c91SAndre Carvalho # Create the command line for netconsole, with the configuration from 36*b3827c91SAndre Carvalho # the function above 37*b3827c91SAndre Carvalho CMDLINE=$(create_cmdline_str "${BINDMODE}") 38*b3827c91SAndre Carvalho 39*b3827c91SAndre Carvalho # The content of kmsg will be save to the following file 40*b3827c91SAndre Carvalho OUTPUT_FILE="/tmp/${TARGET}-${BINDMODE}" 41*b3827c91SAndre Carvalho 42*b3827c91SAndre Carvalho # Load the module, with the cmdline set 43*b3827c91SAndre Carvalho modprobe netconsole "${CMDLINE}" 44*b3827c91SAndre Carvalho 45*b3827c91SAndre Carvalho # Listed for netconsole port inside the namespace and destination 46*b3827c91SAndre Carvalho # interface 47*b3827c91SAndre Carvalho listen_port_and_save_to "${OUTPUT_FILE}" & 48*b3827c91SAndre Carvalho # Wait for socat to start and listen to the port. 49*b3827c91SAndre Carvalho wait_local_port_listen "${NAMESPACE}" "${PORT}" udp 50*b3827c91SAndre Carvalho # Send the message 51*b3827c91SAndre Carvalho echo "${MSG}: ${TARGET}" > /dev/kmsg 52*b3827c91SAndre Carvalho # Wait until socat saves the file to disk 53*b3827c91SAndre Carvalho busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}" 54*b3827c91SAndre Carvalho # Make sure the message was received in the dst part 55*b3827c91SAndre Carvalho # and exit 56*b3827c91SAndre Carvalho validate_msg "${OUTPUT_FILE}" 57*b3827c91SAndre Carvalho 58*b3827c91SAndre Carvalho # kill socat in case it is still running 59*b3827c91SAndre Carvalho pkill_socat 60*b3827c91SAndre Carvalho # Unload the module 61*b3827c91SAndre Carvalho rmmod netconsole 62*b3827c91SAndre Carvalho echo "${BINDMODE} : Test passed" >&2 63*b3827c91SAndre Carvalhodone 64*b3827c91SAndre Carvalho 65*b3827c91SAndre Carvalhoexit "${ksft_pass}" 66