diff options
Diffstat (limited to 'sys/netinet6/in6_cksum.c')
| -rw-r--r-- | sys/netinet6/in6_cksum.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/netinet6/in6_cksum.c b/sys/netinet6/in6_cksum.c index a98b2004b6d..00e35629071 100644 --- a/sys/netinet6/in6_cksum.c +++ b/sys/netinet6/in6_cksum.c @@ -1,4 +1,4 @@ -/* $OpenBSD: in6_cksum.c,v 1.15 2008/06/11 19:00:50 mcbride Exp $ */ +/* $OpenBSD: in6_cksum.c,v 1.16 2014/01/22 14:27:20 naddy Exp $ */ /* $KAME: in6_cksum.c,v 1.10 2000/12/03 00:53:59 itojun Exp $ */ /* @@ -115,6 +115,10 @@ in6_cksum(struct mbuf *m, u_int8_t nxt, u_int32_t off, u_int32_t len) m->m_pkthdr.len, off, len); } + /* Skip pseudo-header if nxt == 0. */ + if (nxt == 0) + goto skip_phdr; + bzero(&uph, sizeof(uph)); /* @@ -141,6 +145,7 @@ in6_cksum(struct mbuf *m, u_int8_t nxt, u_int32_t off, u_int32_t len) sum += uph.phs[0]; sum += uph.phs[1]; sum += uph.phs[2]; sum += uph.phs[3]; +skip_phdr: /* * Secondly calculate a summary of the first mbuf excluding offset. */ |