[PATCH] NAT PPTP Set-Link-Info

[PATCH] NAT PPTP Set-Link-Info

[Philip Craig]

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NAT PPTP Set-Link-Info messages in the PAC->PNS direction.
These are sent by Windows Server 2003.

Note that Set-Link-Info messages do not need to be NATed in the
PNS->PAC direction, since we never NAT the PAC call id.

Tested for linux-2.4.29 only, but should also apply to both 2.6
versions in patch-o-matic-ng.

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Index: linux/net/ipv4/netfilter/ip_nat_pptp.c
===================================================================
--- linux/net/ipv4/netfilter/ip_nat_pptp.c	(revision 4151)
+++ linux/net/ipv4/netfilter/ip_nat_pptp.c	(working copy)
@@ -324,6 +324,9 @@
 	case PPTP_CALL_DISCONNECT_NOTIFY:
 		pcid = &pptpReq.disc->callID;
 		break;
+	case PPTP_SET_LINK_INFO:
+		pcid = &pptpReq.setlink->peersCallID;
+		break;
 
 	default:
 		DEBUGP("unknown inbound packet %s\n",

Re: [PATCH] NAT PPTP Set-Link-Info

[Harald Welte]

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On Tue, Jul 26, 2005 at 02:29:22PM +1000, Philip Craig wrote:
> NAT PPTP Set-Link-Info messages in the PAC->PNS direction.
> These are sent by Windows Server 2003.
> 
> Note that Set-Link-Info messages do not need to be NATed in the
> PNS->PAC direction, since we never NAT the PAC call id.

Thanks, applied to the 2.4.x branch and merged into 2.6, 2.6.11 and
netfilter-2.6.14.git.


-- 
- Harald Welte <laforge@netfilter.org>                 http://netfilter.org/
============================================================================
  "Fragmentation is like classful addressing -- an interesting early
   architectural error that shows how much experimentation was going
   on while IP was being designed."                    -- Paul Vixie

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