diff options
| author |   angelos <angelos@openbsd.org> | 2001-06-25 01:59:29 +0000 |
|---|---|---|
| committer | angelos <angelos@openbsd.org> | 2001-06-25 01:59:29 +0000 |
| commit | 75595951926457bae0fbd36361089e8f64d1856b (patch) | |
| tree | 60d54b46a7d31dff363d905ae311dd539eae0b18 /sys/netinet/tcp_subr.c | |
| parent | remove inlines they are plain wrong (diff) | |
| download | wireguard-openbsd-75595951926457bae0fbd36361089e8f64d1856b.tar.xz wireguard-openbsd-75595951926457bae0fbd36361089e8f64d1856b.zip | |
Always defer output TCP checksumming until ip_output() (or hardware,
if it exists). Cuts down on code a bit, and we don't need to look at
the routing entry at TCP. Based on NetBSD. UDP case to follow.
Diffstat (limited to 'sys/netinet/tcp_subr.c')
| -rw-r--r-- | sys/netinet/tcp_subr.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c index 38f4243d42d..50a1e1aaa1c 100644 --- a/sys/netinet/tcp_subr.c +++ b/sys/netinet/tcp_subr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tcp_subr.c,v 1.47 2001/06/23 19:02:53 angelos Exp $ */ +/* $OpenBSD: tcp_subr.c,v 1.48 2001/06/25 01:59:29 angelos Exp $ */ /* $NetBSD: tcp_subr.c,v 1.22 1996/02/13 23:44:00 christos Exp $ */ /* @@ -235,13 +235,15 @@ tcp_template(tp) bzero(ipovly->ih_x1, sizeof ipovly->ih_x1); ipovly->ih_pr = IPPROTO_TCP; - ipovly->ih_len = htons(sizeof (struct tcpiphdr) - - sizeof (struct ip)); + ipovly->ih_len = htons(sizeof (struct tcphdr)); ipovly->ih_src = inp->inp_laddr; ipovly->ih_dst = inp->inp_faddr; th = (struct tcphdr *)(mtod(m, caddr_t) + sizeof(struct ip)); + th->th_sum = in_cksum_phdr(ipovly->ih_src.s_addr, + ipovly->ih_dst.s_addr, + htons(sizeof (struct tcphdr) + IPPROTO_TCP)); } break; #endif /* INET */ @@ -277,7 +279,6 @@ tcp_template(tp) th->th_off = 5; th->th_flags = 0; th->th_win = 0; - th->th_sum = 0; th->th_urp = 0; return (m); } |