[OpenWrt-Devel] [netifd][PATCH] interface-ip: transfer prefix route ownership to kernel when IPv6 address becomes deprecated

[Adrian Schmutzler]

Hi,

works for me as well.

However, I'd prefer a shorter commit title, e.g.

interface-ip: transfer prefix route ownership for deprecated ipv6addr to kernel

Best

Adrian

> -----Original Message-----
> From: openwrt-devel [mailto:openwrt-devel-bounces at lists.openwrt.org] On
> Behalf Of Alin Nastac
> Sent: Mittwoch, 5. Februar 2020 09:34
> To: Hans Dedecker <dedeckeh at gmail.com>
> Cc: openwrt-devel <openwrt-devel at lists.openwrt.org>
> Subject: Re: [OpenWrt-Devel] [netifd][PATCH] interface-ip: transfer prefix
route
> ownership to kernel when IPv6 address becomes deprecated
> 
> Hi Hans,
> 
> On Tue, Feb 4, 2020 at 10:49 PM Hans Dedecker <dedeckeh at gmail.com> wrote:
> >
> > Hi Alin,
> > On Mon, Feb 3, 2020 at 4:27 PM Alin Nastac <alin.nastac at gmail.com> wrote:
> > >
> > > From: Alin Nastac <alin.nastac at gmail.com>
> > >
> > > When netifd manages the prefix route directly, it will remove it
> > > the moment prefix gets deprecated. This will make it impossible
> > > for the target to send ICMPv6 errors back to LAN devices still
> > > using the deprecated prefix, thus breaking the L-14 requirement
> > > of RFC 7084.
> > >
> > > Signed-off-by: Alin Nastac <alin.nastac at gmail.com>
> > The patch fails to apply with the following error message :
> >
> > Applying: interface-ip: transfer prefix route ownership to kernel when
> > IPv6 address becomes deprecated
> > error: sha1 information is lacking or useless (interface-ip.c).
> > error: could not build fake ancestor
> > Patch failed at 0001 interface-ip: transfer prefix route ownership to
> > kernel when IPv6 address becomes deprecated
> >
> > >                         route.addr = addr.addr;
> > >                 }
> > >
> > > +               addr.flags |= DEVADDR_OFFLINK;
> > >                 if (system_add_address(l3_downlink, &addr))
> > >                         return;
> > >
> > > --
> > > 2.7.4
> > >
> 
> I've downloaded the patch from
> https://patchwork.ozlabs.org/patch/1232885/ and applied it
> successfully with a git am command line:
> 
> nastaca at cplx1037:/usr/localdisk/openwrt/netifd$ git am
> ~/Downloads/OpenWrt-Devel-netifd-interface-ip-transfer-prefix-route-
> ownership-to-kernel-when-IPv6-address-becomes
> -deprecated.patch
> Applying: interface-ip: transfer prefix route ownership to kernel when
> IPv6 address becomes deprecated
> 
> Alin
> 
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> openwrt-devel at lists.openwrt.org
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