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Re: [lwip-devel] API change: restructuring ipv4/ipv6 integration (task #

From: Ivan Delamer
Subject: Re: [lwip-devel] API change: restructuring ipv4/ipv6 integration (task #12722)
Date: Fri, 10 Apr 2015 10:09:31 -0600

Holy mackerel Batman!

I'll be testing this next week.

I'll also look into task #13480 (lwIP as IPv6 only stack), but as a potential user of IPv6-only I'm not too concerned about the few extra bytes that basic IPv4 would add...


Date: Thu, 09 Apr 2015 22:19:53 +0200
From: "address@hidden" <address@hidden>
To: lwip-devel <address@hidden>
Subject: [lwip-devel] API change: restructuring ipv4/ipv6 integration
        (task   #12722)
Message-ID: <address@hidden>
Content-Type: text/plain; charset=windows-1252; format=flowed

Hi all,

for those not reading lwip-users:

goldsimon wrote:
I just wanted to warn you I'm going to push a rather big change
regarding ipv4/ipv6 integration where the old 'ip_addr_t' will be
renamed to ip4_addr_t and ip_addr_t changed to replace ipX_addr_t,
including a version information. This ensures ipv4 and ipv6 addresses
are handled equal (more or less).

This results in an API change, which should hopefully not be noticed by ipv4-only users (LWIP_IPV6==0). In case it does change anything, please
reply here!

This is in preparation for the 1.5.0 release, but I expect more changes
in this area after possibly discussing this further on lwip-devel, so
the API might change again in the next weeks or so. So unless you really want to follow development, I suggest to not pull master tip unless we
have sorted this out.

This mainly means that the tcp/udp/raw API uses dual-version IP
addresses everywhere and most of the IPv6-specific functions/defines are

I'm just pushing this now to get forward on 1.5.0, but please feel free
to share your critics here!

I hope that there are no compiler errors left, but given the amount of
possible define-combinations and function-like-defines I might not all
use, chances are I missed some, so please share them here if you find any.

The next step (which I already started with that commit) is task #13480
(lwIP as IPv6 only stack).


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