Hi
I think packetdrill can be used for the development of new feature for VPP HostStack. So I share how to use packetdrill to test VPP HostStack by veth-pair.
1. Clone packetdrill form https://github.com/google/packetdrill.git , apply the patch named pd.patch and build it
2. The patch named vpp_pd.patch is for vpp which is used to adapte to packetdrill, and building VPP will generate libpd.so . This file is for packetdrill.
3. Create veth interfaces on host
ip link add name vppvethout type veth peer name vppvethhost
ip link set dev vppvethout up
ip link set dev vppvethhost up
ip addr add 10.10.1.1/24 dev vppvethhost
4. Create vpp host- interface
create host-interface name vppvethout hw-addr ee:ff:ff:ff:ff:ff
set int state host-vppvethout up
set int ip address host-vppvethout 10.10.1.2/24
show int addr
ping 10.10.1.1
5. Run the packetdrill script to test VPP Hoststack
LD_PRELOAD=$(vpp)/build-root/install-vpp-native/vpp/lib/libvcl_ldpreload.so VCL_CONFIG=./vcl.conf ./packetdrill --local_ip=10.10.1.2 --remote_ip=10.10.1.1 --so_filename=$(vpp)/build-root/install-vpp native/vpp/lib/libpd.so ./close-remote-fin-then-close.pkt
note : close-remote-fin-then-close.pkt is a little different from the native file in packetdrill.
I hope it is useful for you。
Regards
Longfei
pd.patch
Description: Binary data
vpp_pd.patch
Description: Binary data
close-remote-fin-then-close.pkt
Description: Binary data
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