tools/testing/selftests/net/rtnetlink_notification.sh

Source file repositories/reference/linux-study-clean/tools/testing/selftests/net/rtnetlink_notification.sh

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/net/rtnetlink_notification.sh
Extension
.sh
Size
2626 bytes
Lines
113
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# This test is for checking rtnetlink notification callpaths, and get as much
# coverage as possible.
#
# set -e

ALL_TESTS="
	kci_test_mcast_addr_notification
	kci_test_anycast_addr_notification
"

source lib.sh
test_dev="test-dummy1"

kci_test_mcast_addr_notification()
{
	RET=0
	local tmpfile
	local monitor_pid
	local match_result

	tmpfile=$(mktemp)
	defer rm "$tmpfile"

	ip monitor maddr > $tmpfile &
	monitor_pid=$!
	defer kill_process "$monitor_pid"

	sleep 1

	if [ ! -e "/proc/$monitor_pid" ]; then
		RET=$ksft_skip
		log_test "mcast addr notification: iproute2 too old"
		return $RET
	fi

	ip link add name "$test_dev" type dummy
	check_err $? "failed to add dummy interface"
	ip link set "$test_dev" up
	check_err $? "failed to set dummy interface up"
	ip link del dev "$test_dev"
	check_err $? "Failed to delete dummy interface"
	sleep 1

	# There should be 4 line matches as follows.
	# 13: test-dummy1    inet6 mcast ff02::1 scope global 
	# 13: test-dummy1    inet mcast 224.0.0.1 scope global 
	# Deleted 13: test-dummy1    inet mcast 224.0.0.1 scope global 
	# Deleted 13: test-dummy1    inet6 mcast ff02::1 scope global 
	match_result=$(grep -cE "$test_dev.*(224.0.0.1|ff02::1)" "$tmpfile")
	if [ "$match_result" -ne 4 ]; then
		RET=$ksft_fail
	fi
	log_test "mcast addr notification: Expected 4 matches, got $match_result"
	return $RET
}

kci_test_anycast_addr_notification()
{
	RET=0
	local tmpfile
	local monitor_pid
	local match_result

	tmpfile=$(mktemp)
	defer rm "$tmpfile"

	ip monitor acaddress > "$tmpfile" &

Annotation

Implementation Notes