ipsec-tools should check for NULL crypto in kernel otherwise you get this message when using setkey null Patch to follow
Created attachment 154041 [details, diff] Check for CRYPTO_NULL
Thanks for the patch. + 08 Oct 2008; Robert Buchholz <rbu@gentoo.org> ipsec-tools-0.7.1.ebuild: + Patch by Roy Marples: ipsec-tools should check for NULL crypto in kernel + (bug #223319) +