strongswan-mod-updown requires legacy iptables

Describe the bug

Hello,

currently strongswan-mod-updown requires iptables legacy. Removing the package is not so easy either, since packages like strongswan-default depend on it. Maybe strongswan-mod-updown could be removed from strongswan-default and strongswan-full?

# opkg remove strongswan-mod-updown
No packages removed.
Collected errors:
 * print_dependents_warning: Package strongswan-mod-updown is depended upon by packages:
 * print_dependents_warning: 	strongswan-default
 * print_dependents_warning: These might cease to work if package strongswan-mod-updown is removed.

 * print_dependents_warning: Force removal of this package with --force-depends.
 * print_dependents_warning: Force removal of this package and its dependents
 * print_dependents_warning: with --force-removal-of-dependent-packages.

Terms

• I am reporting an issue for OpenWrt, not an unsupported fork.

Start by locating the package definitions for strongswan-mod-updown, strongswan-default, and strongswan-full, then inspect how their dependency declarations relate to legacy iptables. Confirm the dependency behavior with the relevant OpenWrt packaging checks; done means the requested package relationships are changed only if the affected packages remain correctly installable.