netdev - Re: [ovs-dev] [PATCH v2 net-next 3/5] selftests: openvswitch: add a test for ipv4 forwarding

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Date: Fri, 28 Jul 2023 17:08:37 +0200
From: Adrian Moreno <amorenoz@...hat.com>
To: Aaron Conole <aconole@...hat.com>, netdev@...r.kernel.org
Cc: dev@...nvswitch.org, linux-kernel@...r.kernel.org,
 Ilya Maximets <i.maximets@....org>, Eric Dumazet <edumazet@...gle.com>,
 linux-kselftest@...r.kernel.org, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Shuah Khan <shuah@...nel.org>,
 "David S. Miller" <davem@...emloft.net>
Subject: Re: [ovs-dev] [PATCH v2 net-next 3/5] selftests: openvswitch: add a
 test for ipv4 forwarding



On 7/28/23 13:59, Aaron Conole wrote:
> This is a simple ipv4 bidirectional connectivity test.
> 
> Signed-off-by: Aaron Conole <aconole@...hat.com>

Reviewed-by: Adrian Moreno <amorenoz@...hat.com>

> ---
>   .../selftests/net/openvswitch/openvswitch.sh  | 40 +++++++++++++++++++
>   1 file changed, 40 insertions(+)
> 
> diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh
> index 5cdacb3c8c92..5d60a9466dab 100755
> --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh
> +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh
> @@ -12,6 +12,7 @@ TRACING=0
>   
>   tests="
>   	arp_ping				eth-arp: Basic arp ping between two NS
> +	connect_v4				ip4-xon: Basic ipv4 ping between two NS
>   	netlink_checks				ovsnl: validate netlink attrs and settings
>   	upcall_interfaces			ovs: test the upcall interfaces"
>   
> @@ -192,6 +193,45 @@ test_arp_ping () {
>   	return 0
>   }
>   
> +# connect_v4 test
> +#  - client has 1500 byte MTU
> +#  - server has 1500 byte MTU
> +#  - use ICMP to ping in each direction
> +test_connect_v4 () {
> +
> +	sbx_add "test_connect_v4" || return $?
> +
> +	ovs_add_dp "test_connect_v4" cv4 || return 1
> +
> +	info "create namespaces"
> +	for ns in client server; do
> +		ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \
> +		    "${ns:0:1}0" "${ns:0:1}1" || return 1
> +	done
> +
> +
> +	ip netns exec client ip addr add 172.31.110.10/24 dev c1
> +	ip netns exec client ip link set c1 up
> +	ip netns exec server ip addr add 172.31.110.20/24 dev s1
> +	ip netns exec server ip link set s1 up
> +
> +	# Add forwarding for ARP and ip packets - completely wildcarded
> +	ovs_add_flow "test_connect_v4" cv4 \
> +		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
> +	ovs_add_flow "test_connect_v4" cv4 \
> +		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
> +	ovs_add_flow "test_connect_v4" cv4 \
> +		'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1
> +	ovs_add_flow "test_connect_v4" cv4 \
> +		'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1
> +
> +	# do a ping
> +	ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1
> +
> +	info "done..."
> +	return 0
> +}
> +
>   # netlink_validation
>   # - Create a dp
>   # - check no warning with "old version" simulation

-- 
Adrián Moreno