[PATCH v3 00/12] Introduce the lwIP network stack

[Tom Rini]

On Fri, Jun 07, 2024 at 11:11:49AM +0200, Jerome Forissier wrote:
> 
> 
> On 6/6/24 18:56, Tom Rini wrote:
> > On Thu, Jun 06, 2024 at 03:35:55PM +0200, Jerome Forissier wrote:
> > 
> >> This is a rework of a patch series by Maxim Uvarov: "net/lwip: add lwip
> >> library for the network stack" [1]. The goal is to introduce the lwIP TCP/IP
> >> stack [2] [3] as an alternative to the current implementation in net/,
> >> selectable with Kconfig, and ultimately keep only lwIP if possible. Some
> >> reasons for doing so are:
> >> - Make the support of HTTPS in the wget command easier. Javier T. (CC'd)
> >> has some additional lwIP and Mbed TLS patches to do so. With that it
> >> becomes possible to fetch and launch a distro installer such as Debian
> >> etc. using a secure, authenticated connection directly from the U-Boot
> >> shell. Several use cases:
> >>   * Authentication: prevent MITM attack (third party replacing the
> >> binary with a different one)
> >>   * Confidentiality: prevent third parties from grabbing a copy of the
> >> image as it is being downloaded
> >>   * Allow connection to servers that do not support plain HTTP anymore
> >> (this is becoming more and more common on the Internet these days)
> >> - Possibly benefit from additional features implemented in lwIP
> >> - Less code to maintain in U-Boot
> > 
> > Alright, on Pi 3, I think we have more "output changed, test fails"
> > problems:
> > ========================================== FAILURES ===========================================
> > _____________________________________ test_efi_fit_launch _____________________________________
> > test/py/tests/test_efi_fit.py:452: in test_efi_fit_launch
> >     launch_efi(False, False)
> > test/py/tests/test_efi_fit.py:394: in launch_efi
> >     net_set_up = net_dhcp()
> > test/py/tests/test_efi_fit.py:178: in net_dhcp
> >     assert 'DHCP client bound to address ' in output
> > E   AssertionError: assert 'DHCP client bound to address ' in 'Waiting for Ethernet connection... done.\r\neth0: smsc95xx_eth b8:27:eb:fc:64:a6 active'
> > ------------------------------------ Captured stdout call -------------------------------------
> > U-Boot> usb start
> > U-Boot> U-Boot> setenv autoload no
> > U-Boot> U-Boot> dhcp
> > Waiting for Ethernet connection... done.
> > eth0: smsc95xx_eth b8:27:eb:fc:64:a6 active
> > U-Boot>
> > =================================== short test summary info ===================================
> > 
> > I'm going to skip that set of tests and see how far we get but I suspect
> > it'll keep failing on DHCP output being different.
> 
> As discussed offline with Ilias it might be a timeout issue, although 2000 ms
> for DHCP_TIMEOUT_MS seems a large value to me, it might not be enough in your
> environment. Can you please try to increase it? NET effectively has a timeout
> of 28 seconds if we take the retries into account.

I increased it to 20000 ms and no change.

-- 
Tom
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