| #!/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 "${OUTPUT_FILE}" || true | |
| # Make sure the message was received in the dst part | |
| # and exit | |
| validate_msg "${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}" |