IPv6 Support For LuaSocket

mertocan · June 2016

Hello,

From now on, apple doesn't accept any updates or new apps without ipv6 support. Do we have to update luasocket or socket.lua files for this? Or is it already implemented?

Thanks

hgy29 · June 2016

By the look of it gideros uses a quite old version of luasocket which doesn't support IPv6.
Newest luasocket (2.1) claims to have added IPv6 support, time for an upgrade into gideros maybe ?

mertocan · June 2016

How can I upgrade it?

hgy29 · June 2016

You will need to build it as a gideros plugin, and for this you need all the tools for building gideros itself from sources. Gideros luasocket plugin is here: https://github.com/gideros/gideros/tree/master/plugins/luasocket, while newest luasocket sources can be downloaded here: http://www.luatex.org/svn/trunk/source/texk/web2c/luatexdir/luasocket/doc/index.html#download.

If it is a requirement for iOS, then I may need to have a go at it too since my app use luasocket.

SinisterSoft · June 2016

From the Github it's near 3.0

mertocan · June 2016

It is requirement for iOS. We wont be able to update apps without ipv6 support.

https://coronalabs.com/blog/2016/05/27/apple-ios-and-the-ipv6-deadline/

But, I still dont know how to update luasocket in Gideros. Isnt it possible to make new version of Gideros with new luasocket any time soon?

I really need to update it Apple declines my app.

ar2rsawseen · June 2016

As per article you posted, I think you don't need to update luasocket at all.

1) use server names (like domain or hostname for local connections) instead of server's ip address
2) change ip function to getaddrinfo function if you are using it.

ar2rsawseen · June 2016

And Url loader uses one ios internally uses, so if their API ar compatible with ipv6 then so should be UrlLoader

mertocan · June 2016

Does the current luasocket has socket.tcp6 function to connect ipv6 ?

SinisterSoft · June 2016

broadcast doesn't exist on ipv6 (as far as I'm aware), so if running on an ipv6 only network and you do broadcast then you have to change that too.

ar2rsawseen · June 2016

I have not tested or done anything related to ipv6 but again from your posted link, tcp function should work just fine, if you use servername and not ip directly.

The main problem is that majority of webservers out there are using ipv4,
so if apple would really do what they say they do, it means you would not be able to browse any website on your ios phone.
So they would never do that.

They seem to be only blocking using hardcoded ip addresses which are in ipv4 format. And thats it. All the rest should work as expected.

mertocan · June 2016

Okay I got it now. But I am using ip address to connect socket. Because I have multiple servers for game play. When game initialized my main server(with domain name) sends ip address for socket connection which is ipv4. I need to find solution for it I guess.

Thanks for help btw.

SinisterSoft · June 2016

just create one subdomain per ip address and point to each of them. Then allocate them as you do, but give them the server number instead.

mertocan · June 2016

Hi again,

UrlLoader is working but socket.tcp method returns not connected error even if I am using host name with a port.

address is: onlinewordhunt.com
port is : 105

function connect(address, port, laddress, lport)
    local sock, err = socket.tcp()
    if not sock then return nil, err end
    if laddress then
        local res, err = sock:bind(laddress, lport, -1)
        if not res then return nil, err end
    end
    local res, err = sock:connect(address, port)
    if not res then return nil, err end
    return sock
end

mertocan · June 2016

Actually I am using Noobhub. Do you have any idea about the solution @Overtorment ??

SinisterSoft · June 2016

Maybe Noobhub only works with ip v4 ?

totebo · September 2017

@mertocan, did you get Onlinewordhunt to use ipv6 in the end?

mertocan · September 2017

Yes, looong time ago. It was fixed by updating luasocket plugin.

totebo · September 2017

Great stuff. I also got it working, using the new dns.getaddrinfo in LuaSocket 3.

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