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3dc6c76391
Add IPv6 support to the netconsole basic functionality tests by:
- Introducing separate IPv4 and IPv6 address variables (SRCIP4/SRCIP6,
DSTIP4/DSTIP6) to replace the single SRCIP/DSTIP variables
- Adding select_ipv4_or_ipv6() function to choose protocol version
- Updating socat configuration to use UDP6-LISTEN for IPv6 tests
- Adding wait_for_port() wrapper to handle protocol-specific port waiting
- Expanding test matrix to run both basic and extended formats against
both IPv4 and IPv6 protocols
- Improving cleanup to kill any remaining socat processes
- Adding sleep delays for better IPv6 packet handling reliability
The test now validates netconsole functionality across both IP versions,
improving test coverage for dual-stack network environments.
This test would avoid the regression fixed by commit f599020702 ("net:
netpoll: Initialize UDP checksum field before checksumming")
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250702-netpoll_untagle_ip-v2-7-13cf3db24e2b@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
73 lines
2.3 KiB
Bash
Executable file
73 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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# 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, 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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# 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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