It seems to me the calls to neutron-vpn-netns-wrapper are made here:
http://git.openstack.org/cgit/openstack/neutron-vpnaas/tree/neutron_vpnaas/services/vpn/device_drivers/libreswan_ipsec.py#n48 http://git.openstack.org/cgit/openstack/neutron-vpnaas/tree/neutron_vpnaas/services/vpn/device_drivers/strongswan_ipsec.py#n115
It seems to me the calls to neutron- vpn-netns- wrapper are made here:
http:// git.openstack. org/cgit/ openstack/ neutron- vpnaas/ tree/neutron_ vpnaas/ services/ vpn/device_ drivers/ libreswan_ ipsec.py# n48 git.openstack. org/cgit/ openstack/ neutron- vpnaas/ tree/neutron_ vpnaas/ services/ vpn/device_ drivers/ strongswan_ ipsec.py# n115
http://