[Bug 1000717] New: lwIP TCP/IP drops incoming IP packets on SLIPinterface

[bugzilla-daemon at ecoscentric dot com]

http://bugs.ecos.sourceware.org/show_bug.cgi?id=1000717

           Summary: lwIP TCP/IP drops incoming IP packets on SLIP interface
           Product: eCos
           Version: 3.0beta1
          Platform: Other (please specify)
        OS/Version: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: normal
         Component: TCP/IP
        AssignedTo: gary@mlbassoc.com
        ReportedBy: sergei.gavrikov@gmail.com
         QAContact: ecos-bugs@ecos.sourceware.org
             Class: ---


Created an attachment (id=670)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=670)
slipif.c patch

Today I tried 'lwip_ppp' template (ecos.ecc was tuned to handle SLIP interface)
and I found that slipif_init() cleared netif->flags (reset NETIF_FLAG_UP),
perhaps, this is normal for PPP mode, but when I ran lwip_tcpip tests on SLIP
interface I got on every right incoming IP input the LWIP debug message:

ip_input: packet not for us.

The check

    if ((netif_is_up(netif)) && (!ip_addr_isany(&(netif->ip_addr))))

found no UP interface, because NETIF_FLAG_UP has been already cleaned by
slipif_init()...

With a 1-line tweak (see the patch) all tests become to work just fine.

FYI: I referred with latest lwIP sources (1.3) and found no any wrap in the
place for the SLIP mode.

Can anybody confirm the issue?

Thanks,

Sergei


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