xnu-4570.1.46.tar.gz

[apple/xnu.git] / bsd / netinet6 / esp_output.c

diff --git a/bsd/netinet6/esp_output.c b/bsd/netinet6/esp_output.c
index 3b8b817d4cf128ef6e0f2aa0781d65153bf7c2f5..720846a1982e7f561e3b71c1df37f26c28a7245c 100644 (file)
--- a/bsd/netinet6/esp_output.c
+++ b/bsd/netinet6/esp_output.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008-2016 Apple Inc. All rights reserved.
+ * Copyright (c) 2008-2017 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -828,7 +828,7 @@ esp_output(
                    ip6 = mtod(m, struct ip6_hdr *);
                    udp->uh_ulen = htons(plen + siz + extendsiz + esphlen);
                    udp->uh_sum = in6_pseudo(&ip6->ip6_src, &ip6->ip6_dst, htonl(ntohs(udp->uh_ulen) + IPPROTO_UDP));
-                   m->m_pkthdr.csum_flags = CSUM_UDPIPV6;
+                   m->m_pkthdr.csum_flags = (CSUM_UDPIPV6|CSUM_ZERO_INVERT);
                    m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum);
                    break;
                }