GrapheneOS DHCPv6 support

Niko

I was wondering what is the official standing of GrapheneOS on supporting DHCPv6. How much effort it would take to add support for it?

Officially, it looks like AOSP is not going to add support for it anytime soon https://code.google.com/p/android/issues/detail?id=32621

There exist apps out there that add DHCPv6 to Android, but they require root which is not ideal. https://github.com/Mygod/wide-dhcpv6

GrapheneOS

Niko GrapheneOS isn't going to add a substantial amount of entirely useless attack surface. That's the opposite of what we do in GrapheneOS. DHCPv6 is not needed and IPv6 works fine without it via SLAAC. The people who want DHCPv6 are ISPs wanting to give people a single IPv6 address instead of a proper /64 block. That should not be supported. Android is doing a good thing by holding the line on it and forcing giving /64 blocks.

sptcanon

GrapheneOS Sorry to bump an old thread, but I just want to get some clarification. I'm assuming Graphene doesn't want to support DHCPv6 due to it being of limited use to the majority of users? Because

The people who want DHCPv6 are ISPs wanting to give people a single IPv6 address instead of a proper /64 block.

Is not entirely accurate.

Sure an ISP with a subpar engineering team who doesn't understand IPv6 will hand out /128s. But DHCPv6PD is needed in order to receive a routed, subnettable prefix. Also, if using a graphene device in an enterprise environment (where the company owns the device), certain aspects of IPAM and administration can be made a lot easier with DHCPv6 support.

Lastly if Google was enforcing SLAAC for security reasons, then they'd support SEND protocol instead of just NDP. But as far as I'm aware, they don't.

I completely understand if this is an issue that the Graphene team simply does not wish to tackle, but there are justifiable use cases/needs for DHCPv6 support.