diff options
Diffstat (limited to 'sys/netinet')
-rw-r--r-- | sys/netinet/ip_input.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index 0405b96..beb620b 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -675,7 +675,10 @@ found: HTONS(ip->ip_len); HTONS(ip->ip_off); ip->ip_sum = 0; - ip->ip_sum = in_cksum_hdr(ip); + if (hlen == sizeof(struct ip)) + ip->ip_sum = in_cksum_hdr(ip); + else + ip->ip_sum = in_cksum(m, hlen); NTOHS(ip->ip_off); NTOHS(ip->ip_len); ip->ip_len -= hlen; |