Author: ae
Date: Thu May 7 14:17:43 2015
New Revision: 282578
URL: https://svnweb.freebsd.org/changeset/base/282578
Log:
Mark data checksum as valid for multicast packets, that we send back
to myself via simloop.
Also remove duplicate check under #ifdef DIAGNOSTIC.
PR: 180065
MFC after: 1 week
Modified:
head/sys/netinet6/ip6_output.c
Modified: head/sys/netinet6/ip6_output.c
==============================================================================
--- head/sys/netinet6/ip6_output.c Thu May 7 12:54:27 2015
(r282577)
+++ head/sys/netinet6/ip6_output.c Thu May 7 14:17:43 2015
(r282578)
@@ -2900,14 +2900,6 @@ ip6_mloopback(struct ifnet *ifp, struct
if (copym == NULL)
return;
}
-
-#ifdef DIAGNOSTIC
- if (copym->m_len < sizeof(*ip6)) {
- m_freem(copym);
- return;
- }
-#endif
-
ip6 = mtod(copym, struct ip6_hdr *);
/*
* clear embedded scope identifiers if necessary.
@@ -2915,7 +2907,11 @@ ip6_mloopback(struct ifnet *ifp, struct
*/
in6_clearscope(&ip6->ip6_src);
in6_clearscope(&ip6->ip6_dst);
-
+ if (copym->m_pkthdr.csum_flags & CSUM_DELAY_DATA_IPV6) {
+ copym->m_pkthdr.csum_flags |= CSUM_DATA_VALID_IPV6 |
+ CSUM_PSEUDO_HDR;
+ copym->m_pkthdr.csum_data = 0xffff;
+ }
(void)if_simloop(ifp, copym, dst->sin6_family, 0);
}
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