pfSense

ipsec, using a carpip for the interface of a phase1 ipsec connection with fails to generate the ipsec.conf content.
With 2.1.5 it does work properly.

due to the value wan_vip1 being stored in the config by using this:
$carplist = get_configured_carp_interface_list();
foreach ($carplist as $cif => $carpip)
$interfaces[$cif] = $carpip." (".get_vip_descr($carpip).")";

the $cif will contain that value wan_vip1, then when the function ipsec_get_phase1_src is called it fails to convert that to the ip address of the vip.
Changing code to this make (most of) my ipsec connections work again, though description is then missing in some overviews..:
$interfaces[$carpip] = $carpip." (".get_vip_descr($carpip).")";