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00f3b32518
This commit ensures that the required log level is set at the start of the test iteration. Part of the cleanup performed at the end of each test iteration resets the log level (do_cleanup in lib_netcons.sh) to the values defined at the time test script started. This may cause further test iterations to fail if the default values are not sufficient. Signed-off-by: Andre Carvalho <asantostc@gmail.com> Reviewed-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20251121-netcons-basic-loglevel-v1-1-577f8586159c@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
75 lines
2.3 KiB
Bash
Executable File
75 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: GPL-2.0
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# This test creates two netdevsim virtual interfaces, assigns one of them (the
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# "destination interface") to a new namespace, and assigns IP addresses to both
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# interfaces.
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#
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# It listens on the destination interface using socat and configures a dynamic
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# target on netconsole, pointing to the destination IP address.
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#
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# Finally, it checks whether the message was received properly on the
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# destination interface. Note that this test may pollute the kernel log buffer
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# (dmesg) and relies on dynamic configuration and namespaces being configured.
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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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modprobe netdevsim 2> /dev/null || true
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modprobe netconsole 2> /dev/null || true
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# The content of kmsg will be save to the following file
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OUTPUT_FILE="/tmp/${TARGET}"
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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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# Remove the namespace, interfaces and netconsole target on exit
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trap cleanup EXIT
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# Run the test twice, with different format modes
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for FORMAT in "basic" "extended"
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do
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for IP_VERSION in "ipv6" "ipv4"
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do
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echo "Running with target mode: ${FORMAT} (${IP_VERSION})"
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# Set current loglevel to KERN_INFO(6), and default to
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# KERN_NOTICE(5)
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echo "6 5" > /proc/sys/kernel/printk
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# Create one namespace and two interfaces
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set_network "${IP_VERSION}"
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# Create a dynamic target for netconsole
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create_dynamic_target "${FORMAT}"
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# Only set userdata for extended format
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if [ "$FORMAT" == "extended" ]
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then
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# Set userdata "key" with the "value" value
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set_user_data
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fi
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# Listed for netconsole port inside the namespace and
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# destination interface
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listen_port_and_save_to "${OUTPUT_FILE}" "${IP_VERSION}" &
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# Wait for socat to start and listen to the port.
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wait_for_port "${NAMESPACE}" "${PORT}" "${IP_VERSION}"
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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 "${OUTPUT_FILE}"
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# Make sure the message was received in the dst part
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# and exit
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validate_result "${OUTPUT_FILE}" "${FORMAT}"
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# kill socat in case it is still running
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pkill_socat
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cleanup
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echo "${FORMAT} : ${IP_VERSION} : Test passed" >&2
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done
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done
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trap - EXIT
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exit "${ksft_pass}"
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