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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-14 06:22:34 +02:00
Matthieu Baerts (NGI0)
e6ad44a5b1
In these netconsole tests, bash is used with errexit (set -e). It means that if the busywait timeout, the tests finish without printing an error message. It is fine to ignore these errors, because the following validate_xxx helpers will check the content of the output file, and exit with an appropriated error message, e.g. FAIL: File was not generated. Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Reviewed-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-7-a2915c294ef5@kernel.org 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
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# SPDX-License-Identifier: GPL-2.0
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# This is a selftest to test cmdline arguments on netconsole.
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# It exercises loading of netconsole from cmdline instead of the dynamic
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# reconfiguration. This includes parsing the long netconsole= line and all the
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# flow through init_netconsole().
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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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check_netconsole_module
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modprobe netdevsim 2> /dev/null || true
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rmmod 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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# 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 and network interfaces
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trap do_cleanup EXIT
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# Create one namespace and two interfaces
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set_network
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# Run the test twice, with different cmdline parameters
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for BINDMODE in "ifname" "mac"
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do
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echo "Running with bind mode: ${BINDMODE}" >&2
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# Create the command line for netconsole, with the configuration from
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# the function above
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CMDLINE=$(create_cmdline_str "${BINDMODE}")
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# The content of kmsg will be save to the following file
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OUTPUT_FILE="/tmp/${TARGET}-${BINDMODE}"
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# Load the module, with the cmdline set
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modprobe netconsole "${CMDLINE}"
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# Listed 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}" "${PORT}" udp
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# Send the message
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echo "${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 "${OUTPUT_FILE}" || true
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# Make sure the message was received in the dst part
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# and exit
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validate_msg "${OUTPUT_FILE}"
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# kill socat in case it is still running
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pkill_socat
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# Unload the module
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rmmod netconsole
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echo "${BINDMODE} : Test passed" >&2
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done
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exit "${ksft_pass}"
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