diff options
Diffstat (limited to 'sys/netinet/tcp_output.c')
| -rw-r--r-- | sys/netinet/tcp_output.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c index 645fb37a9971..8e0f36912237 100644 --- a/sys/netinet/tcp_output.c +++ b/sys/netinet/tcp_output.c @@ -1047,19 +1047,24 @@ send: * checksum extended header and data. */ m->m_pkthdr.len = hdrlen + len; /* in6_cksum() need this */ + m->m_pkthdr.csum_data = offsetof(struct tcphdr, th_sum); #ifdef INET6 - if (isipv6) + if (isipv6) { /* * ip6_plen is not need to be filled now, and will be filled * in ip6_output. */ - th->th_sum = in6_cksum(m, IPPROTO_TCP, sizeof(struct ip6_hdr), - sizeof(struct tcphdr) + optlen + len); + m->m_pkthdr.csum_flags = CSUM_TCP_IPV6; + th->th_sum = in6_cksum_pseudo(ip6, sizeof(struct tcphdr) + + optlen + len, IPPROTO_TCP, 0); + } +#endif +#if defined(INET6) && defined(INET) else -#endif /* INET6 */ +#endif +#ifdef INET { m->m_pkthdr.csum_flags = CSUM_TCP; - m->m_pkthdr.csum_data = offsetof(struct tcphdr, th_sum); th->th_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr, htons(sizeof(struct tcphdr) + IPPROTO_TCP + len + optlen)); @@ -1067,6 +1072,7 @@ send: KASSERT(ip->ip_v == IPVERSION, ("%s: IP version incorrect: %d", __func__, ip->ip_v)); } +#endif /* * Enable TSO and specify the size of the segments. |