[PATCH v1 0/2] lwip: add Kconfig to decode and print ICMP unreachable messages

[Tom Rini]

On Tue, Aug 12, 2025 at 09:49:29AM +0200, Jerome Forissier wrote:
> 
> 
> On 8/11/25 17:56, Peter Robinson wrote:
> > Hi Jerome,
> > 
> >> When using commands based on UDP such as tftp or sntp, if the server is
> >> not reachable or the service is not started on the expected port then
> >> the command ultimately times out. However it often happens that the server
> >> or a router sends back an ICMP Destination Unreachable message. That can
> >> help troubleshooting. Therefore, add support to the lwIP stack and to
> > 
> > Has the patch for adding support to the lwIP stack been sent upstream
> > for review? Please reference the upstream patch for this.
> 
> Yes, see https://github.com/lwip-tcpip/lwip/pull/73. I will add a link to
> the commit description.
>  
> > Also related, what is the status of other out of tree patches to upstream LWIP?
> 
> At the moment we have:
> 
> - 5634ecc88e9 ("net: lwip: tftp: bind to TFTP port only when in server mode")
> Submitted upstream as https://savannah.nongnu.org/patch/?10480 and
> https://github.com/lwip-tcpip/lwip/pull/61.
> Status: MERGED (https://github.com/lwip-tcpip/lwip/commit/b1edb7780f5f)
> 
> - 27d7ccda94f ("net: lwip: tftp: add support of blksize option to client")
> further modified by 10917df17f2 ("net: lwip: tftp: fix find_option()")
> Submitted upstream as https://github.com/lwip-tcpip/lwip/pull/62
> Status: PENDING
> 
> - f69f7aef26f ("lwip: tls: enforce checking of server certificates based on
> CA availability")
> Submitted upstream as https://github.com/lwip-tcpip/lwip/pull/63
> Status: PENDING
> 
> - Part of 9349fc2e9c76 ("net, net-lwip: wget: suppress console output when
> called by EFI")
> Submitted upstream as https://github.com/lwip-tcpip/lwip/pull/66
> Status: PENDING
> 
> - Patch 1/2 in this series ("lwip: icmp: allow reporting ICMP detination
> unreachable")
> Submitted upstream as https://github.com/lwip-tcpip/lwip/pull/73
> Status: PENDING
> 
> FYI we do track this information internally here at Linaro. I could as well
> store it in a public location if it makes more sense.

If it's not too much trouble, filing issues in gitlab in the u-boot-net
repository (I just enabled issue tracking there) would be good so it's
visible to all? Thanks.

-- 
Tom
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