Thanks to those who *did* review. In the future, PLEASE feel free to "review" the code even if you're new to OpenSolaris. A code review can be very instructional for someone trying to jump in and make changes.
Here's a blog entry with the user-visible changes in detangle: http://blogs.sun.com/danmcd/entry/detangling_ipsec_nat_traversal_and And if there is anyone who want to port a different IKE to OpenSolaris, this should make your job easier. (There are also PF_KEY improvements, which I may post a second blog entry about if there's interest.) Dan