ipsec not working

[Alexandr Krivulya]

Hi,
after upgrading from r347050 to r347483 ipsec tunel on my notebook does 
not work any more. Connection is established as usual but no policies 
are installed.

2019-05-12 09:12:10 00[DMN] Starting IKE charon daemon (strongSwan 
5.7.2, FreeBSD 13.0-CURRENT, amd64)
2019-05-12 09:12:10 00[KNL] unable to set IPSEC_POLICY on socket: 
Protocol not available
2019-05-12 09:12:10 00[NET] installing IKE bypass policy failed
2019-05-12 09:12:10 00[KNL] unable to set IPSEC_POLICY on socket: 
Protocol not available
2019-05-12 09:12:10 00[NET] installing IKE bypass policy failed
2019-05-12 09:12:10 00[KNL] unable to set UDP_ENCAP: Invalid argument
2019-05-12 09:12:10 00[NET] enabling UDP decapsulation for IPv6 on port 
4500 failed
2019-05-12 09:12:10 00[KNL] unable to set IPSEC_POLICY on socket: 
Protocol not available
2019-05-12 09:12:10 00[NET] installing IKE bypass policy failed
2019-05-12 09:12:10 00[KNL] unable to set IPSEC_POLICY on socket: 
Protocol not available
2019-05-12 09:12:10 00[NET] installing IKE bypass policy failed
2019-05-12 09:12:10 00[KNL] unable to set UDP_ENCAP: Protocol not available
2019-05-12 09:12:10 00[NET] enabling UDP decapsulation for IPv4 on port 
4500 failed

...

2019-05-12 09:12:10 01[CFG] <ikev2-client|1> selected proposal: 
ESP:AES_CBC_256/HMAC_SHA2_256_128/NO_EXT_SEQ
2019-05-12 09:12:10 01[KNL] <ikev2-client|1> unable to add SAD entry 
with SPI c96b2b97: Invalid argument (22)
2019-05-12 09:12:10 01[KNL] <ikev2-client|1> unable to add SAD entry 
with SPI cc951335: Invalid argument (22)
2019-05-12 09:12:10 01[IKE] <ikev2-client|1> unable to install inbound 
and outbound IPsec SA (SAD) in kernel
2019-05-12 09:12:10 01[IKE] <ikev2-client|1> failed to establish 
CHILD_SA, keeping IKE_SA