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authorglebius <glebius@FreeBSD.org>2007-01-15 05:01:31 +0000
committerglebius <glebius@FreeBSD.org>2007-01-15 05:01:31 +0000
commit3ff4e1770d32d5584e15768f76a32a3004edcf35 (patch)
tree2776ba26f4a729f951a5f62fd575f4067be54eeb /sys/netgraph
parent14527025f48b8b94f37b882093fd59199d126f8b (diff)
downloadFreeBSD-src-3ff4e1770d32d5584e15768f76a32a3004edcf35.zip
FreeBSD-src-3ff4e1770d32d5584e15768f76a32a3004edcf35.tar.gz
Update ip and tcp pointers after m_pullup().
Submitted by: Alexander Motin <mav alkar.net>
Diffstat (limited to 'sys/netgraph')
-rw-r--r--sys/netgraph/ng_tcpmss.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/netgraph/ng_tcpmss.c b/sys/netgraph/ng_tcpmss.c
index 88bcafa..ac951e6 100644
--- a/sys/netgraph/ng_tcpmss.c
+++ b/sys/netgraph/ng_tcpmss.c
@@ -315,6 +315,7 @@ ng_tcpmss_rcvdata(hook_p hook, item_p item)
/* Check mbuf packet size and arrange for IP+TCP header */
M_CHECK(iphlen - sizeof(struct ip) + sizeof(struct tcphdr));
+ ip = mtod(m, struct ip *);
tcp = (struct tcphdr *)((caddr_t )ip + iphlen);
/* Check TCP header length. */
@@ -330,6 +331,8 @@ ng_tcpmss_rcvdata(hook_p hook, item_p item)
priv->stats.SYNPkts++;
M_CHECK(tcphlen - sizeof(struct tcphdr));
+ ip = mtod(m, struct ip *);
+ tcp = (struct tcphdr *)((caddr_t )ip + iphlen);
#undef M_CHECK
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