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Message-Id: <1573883605-4525-1-git-send-email-martinvarghesenokia@gmail.com>
Date: Sat, 16 Nov 2019 11:23:25 +0530
From: Martin Varghese <martinvarghesenokia@...il.com>
To: netdev@...r.kernel.org, davem@...emloft.net, shuah@...nel.org,
scott.drennan@...ia.com, jbenc@...hat.com,
martin.varghese@...ia.com
Cc: Martin Varghese <martinvarghesenokia@...il.com>
Subject: [PATCH v3 net-next] Selftests for bareudp module.
From: Martin Varghese <martin.varghese@...ia.com>
Test for MPLSoUDP.
Signed-off-by: Martin Varghese <martinvarghesenokia@...il.com>
---
Changes in v2:
- Module insertion added.
Changes in v3:
- Resending the patch.
tools/testing/selftests/net/test_bareudp.sh | 229 ++++++++++++++++++++++++++++
1 file changed, 229 insertions(+)
create mode 100755 tools/testing/selftests/net/test_bareudp.sh
diff --git a/tools/testing/selftests/net/test_bareudp.sh b/tools/testing/selftests/net/test_bareudp.sh
new file mode 100755
index 0000000..a6dad9c
--- /dev/null
+++ b/tools/testing/selftests/net/test_bareudp.sh
@@ -0,0 +1,229 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for verifying MPLS traffic over bareudp tunnel
+#
+# Trafic between 2 hosts are encapsulated inside an MPLS tunnel and sent over UDP.
+# The PE devices encapsulate IP traffic from Host device in MPLS tunnels.
+# The GW devices encapsulate MPLS traffic from PE devices in UDP tunnels.
+#
+#
+# +-------------------+ +-------------------+
+# | | | |
+# | host-1 netns | | host-2 netns |
+# | | | |
+# | +-------------+ | | +-------------+ |
+# | | pe-h1-h | | | | pe-h2-h | |
+# | | 1.1.1.2/24 | | | | 2.1.1.2/24 | |
+# | +-------------+ | | +-------------+ |
+# | . | | . |
+# +-------------------+ +-------------------+
+# . .
+# . IP Traffic . IP Traffic .
+# . .
+# . .
+# +-------------------------------+ +-------------------------------+
+# | . | | . |
+# | . PE-1 netns | | . PE-2 netns |
+# | +------------------+ | | +---------------+ |
+# | | pe-h1-pe | | | | pe-h2-pe | |
+# | | 1.1.1.1/24 | | | | 2.1.1.1/24 | |
+# | +------------------+ | | +---------------+ |
+# | +------------------+ | | +- -------------+ |
+# | | gw-pe1-pe | | | | gw-pe2-pe | |
+# | | 3.1.1.2/24 | | | | 3.1.1.2/24 | |
+# | +------------------+ | | +---------------+ |
+# | . | | . . |
+# +-------------------------------+ +-------------------------------+
+# . .
+# . .
+# . MPLS Traffic . MPLS Traffic
+# . .
+# +-------------------------------+ +-------------------------------+
+# | . | | . |
+# | . GW-1 netns | | . GW-2 netns |
+# | +------------------+ | | +--------------+ |
+# | | gw-pe1-pe | | | gw-pe2-pe | |
+# | | 3.1.1.3/24 | | | | 3.1.1.3/24 | |
+# | +------------------+ | | +--------------+ |
+# | +------------------+ | | +---------------+ |
+# | | gw-peer-1 | | UDP Tunnel| | gw-peer-2 | |
+# | | 9.1.1.2/24 |. . . . |. . . . . .| .| 9.1.1.3/24 | |
+# | +------------------+ | | +---------------+ |
+# | | | . |
+# +-------------------------------+ +-------------------------------+
+#
+
+cleanup() {
+ local i
+
+ if [ $setup_start == 0 ]
+ then
+ return
+ fi
+
+ for ((i = 1; i <= $num_hosts; ++i)); do
+ ip netns del host-$i || true
+ done
+
+ for ((i = 1; i <= $num_pes; ++i)); do
+ ip netns del pe-$i || true
+ done
+ ip netns del gw-1 || true
+ ip netns del gw-2 || true
+
+}
+
+# Clean start
+cleanup &> /dev/null
+
+[[ $1 == "clean" ]] && exit 0
+
+trap cleanup EXIT
+
+set -e
+
+num_hosts=2
+num_pes=2
+
+setup_start=0
+
+
+setup_pe() {
+ local id=$1
+ ip netns exec pe-$id sysctl -w net.mpls.platform_labels=1000
+}
+
+create_mpls_tunnel() {
+ local id=$1
+ local net=$2
+ local label=$3
+ local gw=$4
+ ip -netns pe-$id route add $net encap mpls $label via inet $gw dev \
+ gw-pe$id-pe
+}
+
+pe_add_label_route() {
+ local id=$1
+ local host=$3
+ local label=$2
+ ip -netns pe-$id -f mpls route add $label via inet $host dev pe-h$id-pe
+}
+
+create_veth_interfaces()
+{
+ local i
+
+ for ((i = 1; i <= $num_hosts; ++i)); do
+ ip link add pe-h$i-h type veth peer name pe-h$i-pe
+ done
+ for ((i = 1; i <= $num_pes; ++i)); do
+ ip link add gw-pe$i-pe type veth peer name gw-pe$i-gw
+ done
+}
+
+create_hosts() {
+ local i
+
+ for ((i = 1; i <= $num_hosts; ++i)); do
+ ip netns add host-$i
+ done
+}
+
+create_pes() {
+ local i
+
+ for ((i = 1; i <= $num_pes; ++i)); do
+ ip netns add pe-$i
+ done
+}
+
+connect_pe_gw() {
+ local dc_id=$1
+ local pe_id=$2
+ local tunnel_src_ip=$3
+ local tunnel_dst_ip=$4
+ local pe_net=$5
+ local gw_net=$6
+ ip link set gw-pe$pe_id-pe netns pe-$pe_id
+ ip link set gw-pe$pe_id-gw netns gw-$dc_id
+ ip netns exec gw-$dc_id tc qdisc add dev bareudp0 handle ffff: ingress
+ ip netns exec gw-$dc_id tc qdisc add dev gw-pe$pe_id-gw handle ffff: ingress
+ ip netns exec gw-$dc_id tc filter add dev gw-pe$pe_id-gw protocol 0x8847 \
+ parent ffff: \
+ flower action tunnel_key set src_ip $tunnel_src_ip \
+ dst_ip $tunnel_dst_ip id 0 \
+ action mirred egress redirect dev bareudp0
+ ip netns exec gw-$dc_id tc filter add dev bareudp0 protocol 0x8847 \
+ parent ffff: flower \
+ action mirred egress redirect dev gw-pe$pe_id-gw
+ ip netns exec gw-$dc_id tc filter add dev bareudp0 protocol 0x8847 parent ffff: \
+ flower \
+ action pedit ex munge eth dst set \
+ 00:00:05:00:00:0$pe_id continue
+ ip -netns pe-$pe_id link set gw-pe$pe_id-pe address 00:00:05:00:00:0$pe_id
+ ip -netns pe-$pe_id addr add $pe_net dev gw-pe$pe_id-pe
+ ip -netns pe-$pe_id link set gw-pe$pe_id-pe up
+ ip -netns gw-$dc_id addr add $gw_net dev gw-pe$pe_id-gw
+ ip -netns gw-$dc_id link set gw-pe$pe_id-gw up
+ ip netns exec pe-$pe_id sysctl -w net.mpls.conf.gw-pe$pe_id-pe.input=1
+}
+
+
+connect_host_pe() {
+ local host_id=$1
+ local pe_id=$2
+ local host_net=$3
+ local pe_net=$4
+ local gw=$5
+ ip link set pe-h$host_id-h netns host-$host_id
+ ip link set pe-h$host_id-pe netns pe-$pe_id
+ ip -netns host-$host_id addr add $host_net dev pe-h$host_id-h
+ ip -netns host-$host_id link set pe-h$host_id-h up
+ ip -netns host-$host_id route add default nexthop via $gw
+ ip -netns pe-$pe_id addr add $pe_net dev pe-h$host_id-pe
+ ip -netns pe-$pe_id link set pe-h$host_id-pe up
+ ip netns exec pe-$pe_id sysctl -w net.mpls.conf.pe-h$host_id-pe.input=1
+}
+
+create_gw() {
+ local id=$1
+ local net=$2
+ ip netns add gw-$id
+ ip link set gw-peer-$id netns gw-$id
+
+ ip -netns gw-$id link add dev bareudp0 type bareudp dstport 6635 \
+ ethertype 0x8847
+ ip -netns gw-$id link set bareudp0 up
+ ip -netns gw-$id addr add $net dev gw-peer-$id
+ ip -netns gw-$id link set gw-peer-$id up
+}
+
+echo start test
+modprobe bareudp
+modprobe mpls_router
+setup_start=1
+create_hosts
+create_pes
+ip link add gw-peer-1 type veth peer name gw-peer-2
+create_gw 1 9.1.1.2/24
+create_gw 2 9.1.1.3/24
+echo "dc gws created"
+create_veth_interfaces
+connect_pe_gw 1 1 9.1.1.2 9.1.1.3 3.1.1.2/24 3.1.1.3/24
+connect_pe_gw 2 2 9.1.1.3 9.1.1.2 3.1.1.2/24 3.1.1.3/24
+connect_host_pe 1 1 1.1.1.2/24 1.1.1.1/24 1.1.1.1
+connect_host_pe 2 2 2.1.1.2/24 2.1.1.1/24 2.1.1.1
+
+setup_pe 1
+setup_pe 2
+
+create_mpls_tunnel 1 2.1.1.2/32 200 3.1.1.3
+pe_add_label_route 1 100 1.1.1.2
+create_mpls_tunnel 2 1.1.1.2/32 100 3.1.1.3
+pe_add_label_route 2 200 2.1.1.2
+
+ip netns exec host-1 ping -c 1 -W 1 2.1.1.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
+
+
--
1.8.3.1
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