Commit a54e7006 authored by Bastien Curutchet (eBPF Foundation)'s avatar Bastien Curutchet (eBPF Foundation) Committed by Alexei Starovoitov
Browse files

selftests/bpf: test_tunnel: Remove test_tunnel.sh 



All tests from test_tunnel.sh have been migrated into test test_progs.
The last test remaining in the script is the test_ipip() that is already
covered in the test_prog framework by the NONE case of test_ipip_tunnel().

Remove the test_tunnel.sh script and its Makefile entry

Signed-off-by: default avatarBastien Curutchet (eBPF Foundation) <bastien.curutchet@bootlin.com>
Signed-off-by: default avatarMartin KaFai Lau <martin.lau@kernel.org>
Acked-by: default avatarStanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250303-tunnels-v2-10-8329f38f0678@bootlin.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 05cd60ab

tools/testing/selftests/bpf/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -100,7 +100,6 @@ TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c) 


# Order correspond to 'make run_tests' order

TEST_PROGS := test_kmod.sh \

	test_tunnel.sh \

	test_lwt_seg6local.sh \

	test_lirc_mode2.sh \

	test_xdp_vlan_mode_generic.sh \

tools/testing/selftests/bpf/test_tunnel.sh

deleted100755 → 0
+0 −179
Original line number Diff line number Diff line 
#!/bin/bash

# SPDX-License-Identifier: GPL-2.0



# End-to-end eBPF tunnel test suite

#   The script tests BPF network tunnel implementation.

#

# Topology:

# ---------

#     root namespace   |     at_ns0 namespace

#                      |

#      -----------     |     -----------

#      | tnl dev |     |     | tnl dev |  (overlay network)

#      -----------     |     -----------

#      metadata-mode   |     native-mode

#       with bpf       |

#                      |

#      ----------      |     ----------

#      |  veth1  | --------- |  veth0  |  (underlay network)

#      ----------    peer    ----------

#

#

# Device Configuration

# --------------------

# Root namespace with metadata-mode tunnel + BPF

# Device names and addresses:

# 	veth1 IP: 172.16.1.200, IPv6: 00::22 (underlay)

# 	tunnel dev <type>11, ex: gre11, IPv4: 10.1.1.200, IPv6: 1::22 (overlay)

#

# Namespace at_ns0 with native tunnel

# Device names and addresses:

# 	veth0 IPv4: 172.16.1.100, IPv6: 00::11 (underlay)

# 	tunnel dev <type>00, ex: gre00, IPv4: 10.1.1.100, IPv6: 1::11 (overlay)

#

#

# End-to-end ping packet flow

# ---------------------------

# Most of the tests start by namespace creation, device configuration,

# then ping the underlay and overlay network.  When doing 'ping 10.1.1.100'

# from root namespace, the following operations happen:

# 1) Route lookup shows 10.1.1.100/24 belongs to tnl dev, fwd to tnl dev.

# 2) Tnl device's egress BPF program is triggered and set the tunnel metadata,

#    with remote_ip=172.16.1.100 and others.

# 3) Outer tunnel header is prepended and route the packet to veth1's egress

# 4) veth0's ingress queue receive the tunneled packet at namespace at_ns0

# 5) Tunnel protocol handler, ex: vxlan_rcv, decap the packet

# 6) Forward the packet to the overlay tnl dev



BPF_FILE="test_tunnel_kern.bpf.o"

BPF_PIN_TUNNEL_DIR="/sys/fs/bpf/tc/tunnel"

PING_ARG="-c 3 -w 10 -q"

ret=0

GREEN='\033[0;92m'

RED='\033[0;31m'

NC='\033[0m' # No Color



config_device()

{

	ip netns add at_ns0

	ip link add veth0 type veth peer name veth1

	ip link set veth0 netns at_ns0

	ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0

	ip netns exec at_ns0 ip link set dev veth0 up

	ip link set dev veth1 up mtu 1500

	ip addr add dev veth1 172.16.1.200/24

}



add_ipip_tunnel()

{

	# at_ns0 namespace

	ip netns exec at_ns0 \

		ip link add dev $DEV_NS type $TYPE \

		local 172.16.1.100 remote 172.16.1.200

	ip netns exec at_ns0 ip link set dev $DEV_NS up

	ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24



	# root namespace

	ip link add dev $DEV type $TYPE external

	ip link set dev $DEV up

	ip addr add dev $DEV 10.1.1.200/24

}



test_ipip()

{

	TYPE=ipip

	DEV_NS=ipip00

	DEV=ipip11

	ret=0



	check $TYPE

	config_device

	add_ipip_tunnel

	ip link set dev veth1 mtu 1500

	attach_bpf $DEV ipip_set_tunnel ipip_get_tunnel

	ping $PING_ARG 10.1.1.100

	check_err $?

	ip netns exec at_ns0 ping $PING_ARG 10.1.1.200

	check_err $?

	cleanup



	if [ $ret -ne 0 ]; then

                echo -e ${RED}"FAIL: $TYPE"${NC}

                return 1

        fi

        echo -e ${GREEN}"PASS: $TYPE"${NC}

}



attach_bpf()

{

	DEV=$1

	SET=$2

	GET=$3

	mkdir -p ${BPF_PIN_TUNNEL_DIR}

	bpftool prog loadall ${BPF_FILE} ${BPF_PIN_TUNNEL_DIR}/

	tc qdisc add dev $DEV clsact

	tc filter add dev $DEV egress bpf da object-pinned ${BPF_PIN_TUNNEL_DIR}/$SET

	tc filter add dev $DEV ingress bpf da object-pinned ${BPF_PIN_TUNNEL_DIR}/$GET

}



cleanup()

{

        rm -rf ${BPF_PIN_TUNNEL_DIR}



	ip netns delete at_ns0 2> /dev/null

	ip link del veth1 2> /dev/null

	ip link del ipip11 2> /dev/null

}



cleanup_exit()

{

	echo "CATCH SIGKILL or SIGINT, cleanup and exit"

	cleanup

	exit 0

}



check()

{

	ip link help 2>&1 | grep -q "\s$1\s"

	if [ $? -ne 0 ];then

		echo "SKIP $1: iproute2 not support"

	cleanup

	return 1

	fi

}



enable_debug()

{

	echo 'file ipip.c +p' > /sys/kernel/debug/dynamic_debug/control

}



check_err()

{

	if [ $ret -eq 0 ]; then

		ret=$1

	fi

}



bpf_tunnel_test()

{

	local errors=0



	echo "Testing IPIP tunnel..."

	test_ipip

	errors=$(( $errors + $? ))



	return $errors

}



trap cleanup 0 3 6

trap cleanup_exit 2 9



cleanup

bpf_tunnel_test



if [ $? -ne 0 ]; then

	echo -e "$(basename $0): ${RED}FAIL${NC}"

	exit 1

fi

echo -e "$(basename $0): ${GREEN}PASS${NC}"

exit 0