Changeset 55002 in vbox for trunk/src

Timestamp:

Mar 30, 2015 2:13:48 AM (10 years ago)

Author:

vboxsync

Message:

NAT: sorecvfrom: DNS proxy requests are forwarded to the real resolver,
but its socket's so_faddr is that of the DNS proxy itself, so we _can_
actually detect if the reply needs to be handed to the DNS proxy.

File:

• trunk/src/VBox/Devices/Network/slirp/socket.c (modified) (1 diff)

trunk/src/VBox/Devices/Network/slirp/socket.c

@@ -779 +779 @@
 
             /*
-             *  last argument should be changed if Slirp will inject IP attributes
-             *  Note: Here we can't check if dnsproxy's sent initial request
+             * DNS proxy requests are forwarded to the real resolver,
+             * but its socket's so_faddr is that of the DNS proxy
+             * itself.
+             *
+             * last argument should be changed if Slirp will inject IP attributes
              */
             if (   pData->fUseDnsProxy
-                && so->so_fport == RT_H2N_U16_C(53))
+                && so->so_fport == RT_H2N_U16_C(53)
+                && CTL_CHECK(so->so_faddr.s_addr, CTL_DNS))
                 dnsproxy_answer(pData, so, m);