Libreswan Documentation

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2026 Improve the ACQUIRE to IKE policy lookup
2026 Add HOST TO HOST Support on BSD
2021 RFC 8420 Add EdDSA Signature Authentication Support to IKEv2
2020 Session Resumption
2020 IKEv2 Interop testing with OpenBSD
2020 IKE Intermediate Exchange
2019 Libreswan Opportunistic IPsec using LetsEncrypt
2018 RSA PSS Support in compliance with RFC 7427 and RFC 8247
2018 RFC 7427 Add ECDSA Signature Authentication Support to IKEv2
2018 RFC 5685 Redirect Mechanism
2018 Managing Interface
2017 TCP encapsulation of IKE and IPsec
2017 RFC 7427 Add Signature Authentication Support to IKEv2
2017 Postquantum Preshared Keys
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Requirements to extend testing, test suite and tests themslef as of Fall 2017 =

Test specifications

Test run scripts in the test directory and support single domain(guest vm) test and multi-domain tests

single domain test

<hostnamae>.sh

multi domain test

00-<host name>.sh Each host that is part of this test need one of these. These scripts could run in parallel on each test host.
nn-<host name>.sh will be executed serially on the  <host> ordered by <nn> or <nnn>.

Output

Reference output:

verbose output

=

tcpdump output

=

gdb output

=

iptables

Ideally no iptables rules on the host. It could interfear with host xfrm rules and may interfear with conntrack rules. Such rules shoild be on the nic. This is deviation from the current model of east-west tests. Where I think we see iptable influencing the tests.

Installing libreswan

The testing could install libreswan in various ways. Each would support a specific use case.

Install with “make install-base”

= This is the most simple one. It will be useful for automated test runs ad developers to quickly test something.

Install using rpm

=

for e.g. “make kvm-rpm” can create appropriate rpm files from the git repository for testing. These could be installed on each host.

The console output sanitizers are capable of distinguishing run from /usr/local/libexec/ipsec or rpm installed location.

If is useful to test interoperatbility with older versions. In such case you may want to able to specify rpm per host. So one or more host, say east and west would run, with different rpm.

Some tests support its own Makefile.inc.local file

Then there is are odd tests which need specific compile time options set or unset. For example DNSEC defined or not, AUDIT is enabled or not. One solution that comes to mind is add a .Makefile.inc.local in the directory. If you see that then rebuild on this specific host. However after the test run you may have rebuild the whole vm from clone image to reset.

Possibly this could be hard to combine with rpms.

One way this could be supported is specify a custom rpm package.