tools/testing/selftests/net/forwarding/mirror_gre.sh

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/net/forwarding/mirror_gre.sh
Extension
.sh
Size
2968 bytes
Lines
142
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 uses standard topology for testing gretap. See
# mirror_gre_topo_lib.sh for more details.
#
# Test for "tc action mirred egress mirror" when the device to mirror to is a
# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
# and another gretap / ip6gretap netdevice is then capable of decapsulating the
# traffic. Test that the payload is what is expected (ICMP ping request or
# reply, depending on test).

ALL_TESTS="
	test_gretap
	test_ip6gretap
	test_gretap_mac
	test_ip6gretap_mac
	test_two_spans
"

NUM_NETIFS=6
source lib.sh
source mirror_lib.sh
source mirror_gre_lib.sh
source mirror_gre_topo_lib.sh

setup_prepare()
{
	h1=${NETIFS[p1]}
	swp1=${NETIFS[p2]}

	swp2=${NETIFS[p3]}
	h2=${NETIFS[p4]}

	swp3=${NETIFS[p5]}
	h3=${NETIFS[p6]}

	vrf_prepare
	mirror_gre_topo_create

	ip address add dev $swp3 192.0.2.129/28
	ip address add dev $h3 192.0.2.130/28

	ip address add dev $swp3 2001:db8:2::1/64
	ip address add dev $h3 2001:db8:2::2/64
}

cleanup()
{
	pre_cleanup

	ip address del dev $h3 2001:db8:2::2/64
	ip address del dev $swp3 2001:db8:2::1/64

	ip address del dev $h3 192.0.2.130/28
	ip address del dev $swp3 192.0.2.129/28

	mirror_gre_topo_destroy
	vrf_cleanup
}

test_span_gre_mac()
{
	local tundev=$1; shift
	local direction=$1; shift
	local what=$1; shift

	case "$direction" in
	ingress) local src_mac=$(mac_get $h1); local dst_mac=$(mac_get $h2)
		;;

Annotation

Implementation Notes