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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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Shell
at master
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879#!/usr/bin/env bash# SPDX-License-Identifier: GPL-2.0
# This test creates two netdevsim virtual interfaces, assigns one of them (the# "destination interface") to a new namespace, and assigns IP addresses to both# interfaces.## It listens on the destination interface using socat and configures a dynamic# target on netconsole, pointing to the destination IP address.## Finally, it checks whether the message was received properly on the# destination interface. Note that this test may pollute the kernel log buffer# (dmesg) and relies on dynamic configuration and namespaces being configured.## Author: Breno Leitao <leitao@debian.org>
set -euo pipefail
SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
source "${SCRIPTDIR}"/../lib/sh/lib_netcons.sh
modprobe netdevsim 2> /dev/null || truemodprobe netconsole 2> /dev/null || true
# The content of kmsg will be save to the following fileOUTPUT_FILE="/tmp/${TARGET}"
# Check for basic system dependency and exit if not foundcheck_for_dependencies# Remove the namespace, interfaces and netconsole target on exittrap cleanup EXIT
# Run the test twice, with different format modesfor FORMAT in "basic" "extended"do for IP_VERSION in "ipv6" "ipv4" do echo "Running with target mode: ${FORMAT} (${IP_VERSION})" # Set current loglevel to KERN_INFO(6), and default to # KERN_NOTICE(5) echo "6 5" > /proc/sys/kernel/printk # Create one namespace and two interfaces set_network "${IP_VERSION}" # Create a dynamic target for netconsole create_dynamic_target "${FORMAT}" # Only set userdata for extended format if [ "$FORMAT" == "extended" ] then # Set userdata "key" with the "value" value set_user_data fi # Listed for netconsole port inside the namespace and # destination interface listen_port_and_save_to "${OUTPUT_FILE}" "${IP_VERSION}" & # Wait for socat to start and listen to the port. wait_for_port "${NAMESPACE}" "${PORT}" "${IP_VERSION}" # Send the message echo "${MSG}: ${TARGET}" > /dev/kmsg # Wait until socat saves the file to disk if ! busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}" then echo "FAIL: Timed out waiting (${BUSYWAIT_TIMEOUT} ms) for netconsole message in ${OUTPUT_FILE}" >&2 exit "${ksft_fail}" fi
# Make sure the message was received in the dst part # and exit validate_result "${OUTPUT_FILE}" "${FORMAT}" # kill socat in case it is still running pkill_socat cleanup echo "${FORMAT} : ${IP_VERSION} : Test passed" >&2 donedone
trap - EXITexit "${ksft_pass}"