Add option for accept_ra value

[aeris]

Add option for accept_ra value

[joukewitteveen]

Do you have a use-case for this? I'm okay with adding such options, but would prefer to give them more meaningful names.

[aeris]

Use case : my gateway 😂
enp1s0 interface has forwarding enabled because it's the LAN/VPN/LXC gateway, and in this case, accept_ra=1 is not enough to have SLAAC working on it and so netctl doesn't assign IPv6.
There is another case here.

For option name, why not just AcceptRA=2?

[joukewitteveen]

I have to think about this a bit and am very much pressed for time right now, I am sorry.
I will be sure to address this before the next version of netctl.

AcceptRA= would be the obvious candidate, but I do not like the value 2. It does not convey what is happening. AcceptRA=always would be more readable, for example. However, what would we call the value 1?

[joukewitteveen]

I gave it a little thought and see no reason why netctl should not just set accept_ra to 2 instead of to 1. Can you think of any situation where you use netctl and 1 is preferred over 2?

Replacing $? by $((2*$?)) on line 54 of /usr/lib/netctl/ip should do the trick (although I will eventually expand this into a proper if statement).

[aeris]

At this moment I see no reason, but if there is 3 possible values in the kernel, it should have at least one 😂

[joukewitteveen]

162af2a