diff options
| author |   angelos <angelos@openbsd.org> | 1999-12-06 22:56:03 +0000 |
|---|---|---|
| committer | angelos <angelos@openbsd.org> | 1999-12-06 22:56:03 +0000 |
| commit | 7136b6a7f641ba594eb86b9a2e797a32492584b9 (patch) | |
| tree | 9adcf285168fc2783bd368a6de3b7b4c2a1024bd | |
| parent | Don't do m_adj() if it's not really needed (minor optimization, (diff) | |
| download | wireguard-openbsd-7136b6a7f641ba594eb86b9a2e797a32492584b9.tar.xz wireguard-openbsd-7136b6a7f641ba594eb86b9a2e797a32492584b9.zip | |
Some preliminiries to AH revamping (similar to ESP)...
| -rw-r--r-- | sys/netinet/ip_ah.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/netinet/ip_ah.c b/sys/netinet/ip_ah.c index 1735573970c..2b0ce925dfa 100644 --- a/sys/netinet/ip_ah.c +++ b/sys/netinet/ip_ah.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ip_ah.c,v 1.27 1999/12/06 07:14:35 angelos Exp $ */ +/* $OpenBSD: ip_ah.c,v 1.28 1999/12/06 22:56:03 angelos Exp $ */ /* * The authors of this code are John Ioannidis (ji@tla.org), @@ -203,7 +203,17 @@ ah_input(m, va_alist) return; } + if ((m = m_pullup(m, ipn.ip_hl << 2)) == 0) + { + ahstat.esps_hdrops++; + return; + } + ipo = mtod(m, struct ip *); + ipo->ip_len = htons(m->m_pkthdr.len); + ipo->ip_sum = 0; + ipo->ip_sum = in_cksum(m, ipo->ip_hl << 2); + if (ipo->ip_p == IPPROTO_IPIP) /* IP-in-IP encapsulation */ { /* ipn will now contain the inner IP header */ |