Good Day,
I have been working on porting Samba 4.11 to Cygwin for a few days and ran into
an odd issue. Samba configures its interfaces in several steps, but it relies
pretty heavily on getting information from the interface structures populated
by Cygwin. While I was walking through the call map I noticed a lot of the data
is populated by get_ifs and that routine may have a bug in its handling of
IfIndex. Basically it seems to copy the IPv4 index at all times even though it
may need Ipv6Index.
the same code exists at line 1904 and 1808 as well. I believe the current code
may fail to retrieve the correct adapter index if IPv6 is enabled on the
interface.
this is current code: ifp->ifa_hwdata.ifa_ifindex = pap->IfIndex;
I think it should be: ifp->ifa_hwdata.ifa_ifindex = (sa->sa_family == AF_INET
? pap->IfIndex : pap->Ipv6Index);
This is the model used by the lines retrieving the other elements with dual
locations on the windows side.
I am unable to debug this to confirm it, but please let me know if this is
actually a bug or not.
Sincerely,
David Bean
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