tools/testing/selftests/net/skf_net_off.sh

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/net/skf_net_off.sh
Extension
.sh
Size
769 bytes
Lines
31
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

readonly NS="ns-$(mktemp -u XXXXXX)"

cleanup() {
	ip netns del $NS
}

ip netns add $NS
trap cleanup EXIT

ip -netns $NS link set lo up
ip -netns $NS tuntap add name tap1 mode tap
ip -netns $NS link set tap1 up
ip -netns $NS link set dev tap1 addr 02:00:00:00:00:01
ip -netns $NS -6 addr add fdab::1 peer fdab::2 dev tap1 nodad
ip netns exec $NS ethtool -K tap1 gro off

# disable early demux, else udp_v6_early_demux pulls udp header into linear
ip netns exec $NS sysctl -w net.ipv4.ip_early_demux=0

echo "no filter"
ip netns exec $NS ./skf_net_off -i tap1

echo "filter, linear skb (-f)"
ip netns exec $NS ./skf_net_off -i tap1 -f

echo "filter, fragmented skb (-f) (-F)"
ip netns exec $NS ./skf_net_off -i tap1 -f -F

Annotation

Implementation Notes