Changeset 59201 in vbox for trunk/src/VBox/Devices/Network/slirp

Timestamp:

Dec 21, 2015 4:38:45 PM (9 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

104824

Message:

NAT: RFC2535 defined some bits from the original RFC1035 Z (must be
zero) field. Don't insist on Z being 0 in requests and clear it in
replies.

File:

• trunk/src/VBox/Devices/Network/slirp/hostres.c (modified) (2 diffs)

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

@@ -226 +226 @@
     }
 
-    if (RT_UNLIKELY(pHdr->Z != 0))
-    {
-        LogErr(("NAT: hostres: MBZ bits are not\n"));
-        refuse(pData, m, RCode_FormErr);
-        return 1;
-    }
-
     if (RT_UNLIKELY(pHdr->qdcount != RT_H2N_U16_C(1)))
     {
@@ -307 +300 @@
     pHdr->ra = 1;               /* the host provides recursion */
     pHdr->aa = 0;               /* we are not authoritative */
+    pHdr->Z = 0;                /* clear rfc2535 dnssec bits */
 
     off = sizeof(*pHdr);