Commit fe831331 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Pablo Neira Ayuso
Browse files

selftests: netfilter: nft_flowtable.sh: Add IPIP flowtable selftest 



Introduce specific selftest for IPIP flowtable SW acceleration in
nft_flowtable.sh

Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent d30301ba

tools/testing/selftests/net/netfilter/nft_flowtable.sh

+69 −0
Original line number Diff line number Diff line
@@ -558,6 +558,73 @@ if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 ""; then 
	ip netns exec "$nsr1" nft list ruleset

fi



# IPIP tunnel test:

# Add IPIP tunnel interfaces and check flowtable acceleration.

test_ipip() {

if ! ip -net "$nsr1" link add name tun0 type ipip \

     local 192.168.10.1 remote 192.168.10.2 >/dev/null;then

	echo "SKIP: could not add ipip tunnel"

	[ "$ret" -eq 0 ] && ret=$ksft_skip

	return

fi

ip -net "$nsr1" link set tun0 up

ip -net "$nsr1" addr add 192.168.100.1/24 dev tun0

ip netns exec "$nsr1" sysctl net.ipv4.conf.tun0.forwarding=1 > /dev/null



ip -net "$nsr2" link add name tun0 type ipip local 192.168.10.2 remote 192.168.10.1

ip -net "$nsr2" link set tun0 up

ip -net "$nsr2" addr add 192.168.100.2/24 dev tun0

ip netns exec "$nsr2" sysctl net.ipv4.conf.tun0.forwarding=1 > /dev/null



ip -net "$nsr1" route change default via 192.168.100.2

ip -net "$nsr2" route change default via 192.168.100.1

ip -net "$ns2" route add default via 10.0.2.1



ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun0 accept'

ip netns exec "$nsr1" nft -a insert rule inet filter forward \

	'meta oif "veth0" tcp sport 12345 ct mark set 1 flow add @f1 counter name routed_repl accept'



if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel"; then

	echo "FAIL: flow offload for ns1/ns2 with IPIP tunnel" 1>&2

	ip netns exec "$nsr1" nft list ruleset

	ret=1

fi



# Create vlan tagged devices for IPIP traffic.

ip -net "$nsr1" link add link veth1 name veth1.10 type vlan id 10

ip -net "$nsr1" link set veth1.10 up

ip -net "$nsr1" addr add 192.168.20.1/24 dev veth1.10

ip netns exec "$nsr1" sysctl net.ipv4.conf.veth1/10.forwarding=1 > /dev/null

ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif veth1.10 accept'

ip -net "$nsr1" link add name tun1 type ipip local 192.168.20.1 remote 192.168.20.2

ip -net "$nsr1" link set tun1 up

ip -net "$nsr1" addr add 192.168.200.1/24 dev tun1

ip -net "$nsr1" route change default via 192.168.200.2

ip netns exec "$nsr1" sysctl net.ipv4.conf.tun1.forwarding=1 > /dev/null

ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun1 accept'



ip -net "$nsr2" link add link veth0 name veth0.10 type vlan id 10

ip -net "$nsr2" link set veth0.10 up

ip -net "$nsr2" addr add 192.168.20.2/24 dev veth0.10

ip netns exec "$nsr2" sysctl net.ipv4.conf.veth0/10.forwarding=1 > /dev/null

ip -net "$nsr2" link add name tun1 type ipip local 192.168.20.2 remote 192.168.20.1

ip -net "$nsr2" link set tun1 up

ip -net "$nsr2" addr add 192.168.200.2/24 dev tun1

ip -net "$nsr2" route change default via 192.168.200.1

ip netns exec "$nsr2" sysctl net.ipv4.conf.tun1.forwarding=1 > /dev/null



if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel over vlan"; then

	echo "FAIL: flow offload for ns1/ns2 with IPIP tunnel over vlan" 1>&2

	ip netns exec "$nsr1" nft list ruleset

	ret=1

fi



# Restore the previous configuration

ip -net "$nsr1" route change default via 192.168.10.2

ip -net "$nsr2" route change default via 192.168.10.1

ip -net "$ns2" route del default via 10.0.2.1

}



# Another test:

# Add bridge interface br0 to Router1, with NAT enabled.

test_bridge() {
@@ -643,6 +710,8 @@ ip -net "$nsr1" addr add dead:1::1/64 dev veth0 nodad 
ip -net "$nsr1" link set up dev veth0

}



test_ipip



test_bridge



KEY_SHA="0x"$(ps -af | sha1sum | cut -d " " -f 1)