| #!/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 |
| |
| # The content of kmsg will be save to the following file |
| OUTPUT_FILE="/tmp/${TARGET}" |
| |
| # Check for basic system dependency and exit if not found |
| # check_for_dependencies |
| # Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5) |
| echo "6 5" > /proc/sys/kernel/printk |
| # Remove the namespace and network interfaces |
| trap do_cleanup EXIT |
| # Create one namespace and two interfaces |
| set_network |
| # Create the command line for netconsole, with the configuration from the |
| # function above |
| CMDLINE="$(create_cmdline_str)" |
| |
| # 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}" |
| |
| exit "${ksft_pass}" |
