hardenedbsd/HardenedBSD
1
0
Fork 0
mirror of https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git synced 2025-01-11 17:04:19 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Let initialize th_sum before in6_cksum(), again.

Browse Source 
Without this fix, all IPv6 TCP RST packet has wrong cksum value,
so IPv6 connect() trial to 5.0 machine won't fail until tcp connect timeout,
when they should fail soon.

Thanks to haro@tk.kubota.co.jp (Munehiro Matsuda) for his much debugging
help and detailed info.
This commit is contained in:
Yoshinobu Inoue 2000-04-19 15:05:00 +00:00
parent 3389ae9350
commit 34e3e010b6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=59392
2 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sys/netinet/tcp_subr.c
View File

@ -420,6 +420,7 @@ tcp_respond(tp, ipgen, th, m, ack, seq, flags)
nth->th_urp = 0;
#ifdef INET6
if (isipv6) {
nth->th_sum = 0;
nth->th_sum = in6_cksum(m, IPPROTO_TCP,
sizeof(struct ip6_hdr),
tlen - sizeof(struct ip6_hdr));

1
sys/netinet/tcp_timewait.c
View File

@ -420,6 +420,7 @@ tcp_respond(tp, ipgen, th, m, ack, seq, flags)
nth->th_urp = 0;
#ifdef INET6
if (isipv6) {
nth->th_sum = 0;
nth->th_sum = in6_cksum(m, IPPROTO_TCP,
sizeof(struct ip6_hdr),
tlen - sizeof(struct ip6_hdr));