> > > I was hoping proxy_only will do the trick but it does not seem to have
> > > any impact and the source address is changed anyway.
> > >
> > > A quick glance at the source did not help much to my understanding of the
> > > proxy_only option.
> > >
> > Confirmed as a bug. The attached patch worked for me,
> > please test it. You'll have to recompile and reinstall
> > libalias(3), then recompile and reinstall natd(8) with
> > new library.
> >
> I was too fast. This patch doesn't work well. It works
> in a sense that it doesn't modify source IP address of
> the proxied packets, but it doesn't work in a sense that
> reply packets do not undergo de-aliasing. The attached
> patch is verified to work. Please test it instead.
The patch works. Thank you very much. I attach my attempt on a patch that
should make it possible to ommit the alias_address and interface options
in case proxy_only is specified. IMHO in that situation these options are
not used and should not be required by natd..
Thank you for any comments on the diff (especially style).
Should I fire a PR?
Best regards,
Vaclav
--- natd.c.orig Tue Jun 10 11:11:28 2003
+++ natd.c Tue Jun 10 11:35:59 2003
@@ -131,6 +131,7 @@
struct sockaddr_in addr;
fd_set readMask;
int fdMax;
+ int proxy_only;
/*
* Initialize packet aliasing software.
* Done already here to be able to alter option bits
@@ -170,7 +171,9 @@
/*
* Check that valid aliasing address has been given.
*/
- if (aliasAddr.s_addr == INADDR_NONE && ifName == NULL)
+
+ proxy_only = (PacketAliasSetMode(0,0) & PKT_ALIAS_PROXY_ONLY);
+ if (aliasAddr.s_addr == INADDR_NONE && ifName == NULL && !proxy_only)
errx (1, "aliasing address not given");
if (aliasAddr.s_addr != INADDR_NONE && ifName != NULL)
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