FM / forwarding

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/forwarding/

/usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/forwarding

Name	Size	Mode	Actions
bridge_igmp.sh	15152	0755	edit dl rm
bridge_mld.sh	16563	0755	edit dl rm
bridge_port_isolation.sh	2378	0755	edit dl rm
bridge_sticky_fdb.sh	1159	0755	edit dl rm
bridge_vlan_aware.sh	2524	0755	edit dl rm
bridge_vlan_unaware.sh	1248	0755	edit dl rm
custom_multipath_hash.sh	9993	0755	edit dl rm
devlink_lib.sh	13118	0644	edit dl rm
dual_vxlan_bridge.sh	11439	0755	edit dl rm
ethtool.sh	6745	0755	edit dl rm
ethtool_extended_state.sh	1923	0755	edit dl rm
ethtool_lib.sh	2815	0644	edit dl rm
fib_offload_lib.sh	25157	0644	edit dl rm
gre_custom_multipath_hash.sh	12768	0755	edit dl rm
gre_inner_v4_multipath.sh	7730	0755	edit dl rm
gre_inner_v6_multipath.sh	7843	0755	edit dl rm
gre_multipath.sh	6439	0755	edit dl rm
gre_multipath_nh.sh	9301	0755	edit dl rm
gre_multipath_nh_res.sh	9491	0755	edit dl rm
ip6gre_custom_multipath_hash.sh	13038	0755	edit dl rm
ip6gre_inner_v4_multipath.sh	7956	0755	edit dl rm
ip6gre_inner_v6_multipath.sh	8069	0755	edit dl rm
ip6_forward_instats_vrf.sh	3092	0755	edit dl rm
ipip_flat_gre.sh	838	0755	edit dl rm
ipip_flat_gre_key.sh	860	0755	edit dl rm
ipip_flat_gre_keys.sh	886	0755	edit dl rm
ipip_hier_gre.sh	887	0755	edit dl rm
ipip_hier_gre_key.sh	910	0755	edit dl rm
ipip_hier_gre_keys.sh	938	0755	edit dl rm
ipip_lib.sh	8557	0644	edit dl rm
lib.sh	28668	0644	edit dl rm
loopback.sh	1589	0755	edit dl rm
Makefile	1718	0644	edit dl rm
mirror_gre.sh	3366	0755	edit dl rm
mirror_gre_bound.sh	5929	0755	edit dl rm
mirror_gre_bridge_1d.sh	4504	0755	edit dl rm
mirror_gre_bridge_1d_vlan.sh	2717	0755	edit dl rm
mirror_gre_bridge_1q.sh	4380	0755	edit dl rm
mirror_gre_bridge_1q_lag.sh	7485	0755	edit dl rm
mirror_gre_changes.sh	5824	0755	edit dl rm
mirror_gre_flower.sh	2891	0755	edit dl rm
mirror_gre_lag_lacp.sh	7458	0755	edit dl rm
mirror_gre_lib.sh	2565	0644	edit dl rm
mirror_gre_neigh.sh	2338	0755	edit dl rm
mirror_gre_nh.sh	2974	0755	edit dl rm
mirror_gre_topo_lib.sh	3524	0644	edit dl rm
mirror_gre_vlan.sh	1715	0755	edit dl rm
mirror_gre_vlan_bridge_1q.sh	9117	0755	edit dl rm
mirror_lib.sh	2964	0644	edit dl rm
mirror_topo_lib.sh	2758	0644	edit dl rm
mirror_vlan.sh	2303	0755	edit dl rm
pedit_dsfield.sh	6789	0755	edit dl rm
pedit_l4port.sh	4564	0755	edit dl rm
q_in_vni.sh	10926	0755	edit dl rm
router.sh	6322	0755	edit dl rm
router_bridge.sh	1794	0755	edit dl rm
router_bridge_vlan.sh	2108	0755	edit dl rm
router_broadcast.sh	5142	0755	edit dl rm
router_mpath_nh.sh	9828	0755	edit dl rm
router_mpath_nh_res.sh	10223	0755	edit dl rm
router_multicast.sh	11597	0755	edit dl rm
router_multipath.sh	8449	0755	edit dl rm
router_nh.sh	2627	0755	edit dl rm
router_vid_1.sh	2153	0755	edit dl rm
sch_ets.sh	781	0755	edit dl rm
sch_ets_core.sh	7456	0644	edit dl rm
sch_ets_tests.sh	4044	0644	edit dl rm
sch_red.sh	11358	0755	edit dl rm
sch_tbf_core.sh	5140	0644	edit dl rm
sch_tbf_ets.sh	118	0755	edit dl rm
sch_tbf_etsprio.sh	711	0644	edit dl rm
sch_tbf_prio.sh	118	0755	edit dl rm
sch_tbf_root.sh	422	0755	edit dl rm
skbedit_priority.sh	3901	0755	edit dl rm
tc_actions.sh	6606	0755	edit dl rm
tc_chains.sh	4945	0755	edit dl rm
tc_common.sh	524	0644	edit dl rm
tc_flower.sh	21752	0755	edit dl rm
tc_flower_router.sh	3096	0755	edit dl rm
tc_mpls_l2vpn.sh	5146	0755	edit dl rm
tc_police.sh	12111	0755	edit dl rm
tc_shblocks.sh	2748	0755	edit dl rm
tc_vlan_modify.sh	3246	0755	edit dl rm
vxlan_asymmetric.sh	17978	0755	edit dl rm
vxlan_bridge_1d.sh	20863	0755	edit dl rm
vxlan_bridge_1d_port_8472.sh	172	0755	edit dl rm
vxlan_bridge_1q.sh	24053	0755	edit dl rm
vxlan_bridge_1q_port_8472.sh	172	0755	edit dl rm
vxlan_symmetric.sh	18488	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/tools/testing/selftests/net/forwarding/ipip_lib.sh (8557B)

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

# Handles creation and destruction of IP-in-IP or GRE tunnels over the given
# topology. Supports both flat and hierarchical models.
#
# Flat Model:
# Overlay and underlay share the same VRF.
# SW1 uses default VRF so tunnel has no bound dev.
# SW2 uses non-default VRF tunnel has a bound dev.
# +-------------------------+
# | H1                      |
# |               $h1 +     |
# |      192.0.2.1/28 |     |
# +-------------------|-----+
#                     |
# +-------------------|-----+
# | SW1               |     |
# |              $ol1 +     |
# |      192.0.2.2/28       |
# |                         |
# |  + g1a (gre)            |
# |    loc=192.0.2.65       |
# |    rem=192.0.2.66 --.   |
# |    tos=inherit      |   |
# |  .------------------'   |
# |  |                      |
# |  v                      |
# |  + $ul1.111 (vlan)      |
# |  | 192.0.2.129/28       |
# |   \                     |
# |    \_______             |
# |            |            |
# |VRF default + $ul1       |
# +------------|------------+
#              |
# +------------|------------+
# | SW2        + $ul2       |
# |     _______|            |
# |    /                    |
# |   /                     |
# |  + $ul2.111 (vlan)      |
# |  ^ 192.0.2.130/28       |
# |  |                      |
# |  |                      |
# |  '------------------.   |
# |  + g2a (gre)        |   |
# |    loc=192.0.2.66   |   |
# |    rem=192.0.2.65 --'   |
# |    tos=inherit          |
# |                         |
# |              $ol2 +     |
# |     192.0.2.17/28 |     |
# | VRF v$ol2         |     |
# +-------------------|-----+
#                     |
# +-------------------|-----+
# | H2                |     |
# |               $h2 +     |
# |     192.0.2.18/28       |
# +-------------------------+
#
# Hierarchical model:
# The tunnel is bound to a device in a different VRF
#
# +---------------------------+
# | H1                        |
# |               $h1 +       |
# |      192.0.2.1/28 |       |
# +-------------------|-------+
#                     |
# +-------------------|-------+
# | SW1               |       |
# | +-----------------|-----+ |
# | |            $ol1 +     | |
# | |     192.0.2.2/28      | |
# | |                       | |
# | |    + g1a (gre)        | |
# | |    rem=192.0.2.66     | |
# | |    tos=inherit        | |
# | |    loc=192.0.2.65     | |
# | |           ^           | |
# | | VRF v$ol1 |           | |
# | +-----------|-----------+ |
# |             |             |
# | +-----------|-----------+ |
# | | VRF v$ul1 |           | |
# | |           |           | |
# | |           |           | |
# | |           v           | |
# | |    dummy1 +           | |
# | |   192.0.2.65          | |
# | |   .-------'           | |
# | |   |                   | |
# | |   v                   | |
# | |   + $ul1.111 (vlan)   | |
# | |   | 192.0.2.129/28    | |
# | |   \                   | |
# | |    \_____             | |
# | |          |            | |
# | |          + $ul1       | |
# | +----------|------------+ |
# +------------|--------------+
#              |
# +------------|--------------+
# | SW2        |              |
# | +----------|------------+ |
# | |          + $ul2       | |
# | |     _____|            | |
# | |    /                  | |
# | |   /                   | |
# | |   | $ul2.111 (vlan)   | |
# | |   + 192.0.2.130/28    | |
# | |   ^                   | |
# | |   |                   | |
# | |   '-------.           | |
# | |    dummy2 +           | |
# | |    192.0.2.66         | |
# | |           ^           | |
# | |           |           | |
# | |           |           | |
# | | VRF v$ul2 |           | |
# | +-----------|-----------+ |
# |             |             |
# | +-----------|-----------+ |
# | | VRF v$ol2 |           | |
# | |           |           | |
# | |           v           | |
# | |  g2a (gre)+           | |
# | |  loc=192.0.2.66       | |
# | |  rem=192.0.2.65       | |
# | |  tos=inherit          | |
# | |                       | |
# | |            $ol2 +     | |
# | |   192.0.2.17/28 |     | |
# | +-----------------|-----+ |
# +-------------------|-------+
#                     |
# +-------------------|-------+
# | H2                |       |
# |               $h2 +       |
# |     192.0.2.18/28         |
# +---------------------------+
source lib.sh

h1_create()
{
	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
	ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
}

h1_destroy()
{
	ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
	simple_if_fini $h1 192.0.2.1/28
}

h2_create()
{
	simple_if_init $h2 192.0.2.18/28
	ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
}

h2_destroy()
{
	ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
	simple_if_fini $h2 192.0.2.18/28
}

sw1_flat_create()
{
	local type=$1; shift
	local ol1=$1; shift
	local ul1=$1; shift

ip link set dev $ol1 up
        __addr_add_del $ol1 add "192.0.2.2/28"

ip link set dev $ul1 up
	vlan_create $ul1 111 "" 192.0.2.129/28

tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit "$@"
	ip link set dev g1a up
        __addr_add_del g1a add "192.0.2.65/32"

ip route add 192.0.2.66/32 via 192.0.2.130

ip route add 192.0.2.16/28 nexthop dev g1a
}

sw1_flat_destroy()
{
	local ol1=$1; shift
	local ul1=$1; shift

ip route del 192.0.2.16/28

ip route del 192.0.2.66/32 via 192.0.2.130
	__simple_if_fini g1a 192.0.2.65/32
	tunnel_destroy g1a

vlan_destroy $ul1 111
	__simple_if_fini $ul1
	__simple_if_fini $ol1 192.0.2.2/28
}

sw2_flat_create()
{
	local type=$1; shift
	local ol2=$1; shift
	local ul2=$1; shift

simple_if_init $ol2 192.0.2.17/28
	__simple_if_init $ul2 v$ol2
	vlan_create $ul2 111 v$ol2 192.0.2.130/28

tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev v$ol2 \
		"$@"
	__simple_if_init g2a v$ol2 192.0.2.66/32

ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
	ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
}

sw2_flat_destroy()
{
	local ol2=$1; shift
	local ul2=$1; shift

ip route del vrf v$ol2 192.0.2.0/28

ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
	__simple_if_fini g2a 192.0.2.66/32
	tunnel_destroy g2a

vlan_destroy $ul2 111
	__simple_if_fini $ul2
	simple_if_fini $ol2 192.0.2.17/28
}

sw1_hierarchical_create()
{
	local type=$1; shift
	local ol1=$1; shift
	local ul1=$1; shift

simple_if_init $ol1 192.0.2.2/28
	simple_if_init $ul1
	ip link add name dummy1 type dummy
	__simple_if_init dummy1 v$ul1 192.0.2.65/32

vlan_create $ul1 111 v$ul1 192.0.2.129/28
	tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit dev dummy1 \
		"$@"
	ip link set dev g1a master v$ol1

ip route add vrf v$ul1 192.0.2.66/32 via 192.0.2.130
	ip route add vrf v$ol1 192.0.2.16/28 nexthop dev g1a
}

sw1_hierarchical_destroy()
{
	local ol1=$1; shift
	local ul1=$1; shift

ip route del vrf v$ol1 192.0.2.16/28
	ip route del vrf v$ul1 192.0.2.66/32

tunnel_destroy g1a
	vlan_destroy $ul1 111

__simple_if_fini dummy1 192.0.2.65/32
	ip link del dev dummy1

simple_if_fini $ul1
	simple_if_fini $ol1 192.0.2.2/28
}

sw2_hierarchical_create()
{
	local type=$1; shift
	local ol2=$1; shift
	local ul2=$1; shift

simple_if_init $ol2 192.0.2.17/28
	simple_if_init $ul2

ip link add name dummy2 type dummy
	__simple_if_init dummy2 v$ul2 192.0.2.66/32

vlan_create $ul2 111 v$ul2 192.0.2.130/28
	tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev dummy2 \
		"$@"
	ip link set dev g2a master v$ol2

ip route add vrf v$ul2 192.0.2.65/32 via 192.0.2.129
	ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
}

sw2_hierarchical_destroy()
{
	local ol2=$1; shift
	local ul2=$1; shift

ip route del vrf v$ol2 192.0.2.0/28
	ip route del vrf v$ul2 192.0.2.65/32

tunnel_destroy g2a
	vlan_destroy $ul2 111

__simple_if_fini dummy2 192.0.2.66/32
	ip link del dev dummy2

simple_if_fini $ul2
	simple_if_fini $ol2 192.0.2.17/28
}

topo_mtu_change()
{
	local mtu=$1

ip link set mtu $mtu dev $h1
	ip link set mtu $mtu dev $ol1
	ip link set mtu $mtu dev g1a
	ip link set mtu $mtu dev $ul1
	ip link set mtu $mtu dev $ul1.111
	ip link set mtu $mtu dev $h2
	ip link set mtu $mtu dev $ol2
	ip link set mtu $mtu dev g2a
	ip link set mtu $mtu dev $ul2
	ip link set mtu $mtu dev $ul2.111
}

test_mtu_change()
{
	local encap=$1; shift

RET=0

ping_do $h1 192.0.2.18 "-s 1800	-w 3"
	check_fail $? "ping $encap should not pass with size 1800"

RET=0

topo_mtu_change	2000
	ping_do	$h1 192.0.2.18 "-s 1800	-w 3"
	check_err $?
	log_test "ping $encap packet size 1800 after MTU change"
}

cmd: