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D30026.diff
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diff --git a/sys/netpfil/pf/pf_norm.c b/sys/netpfil/pf/pf_norm.c
--- a/sys/netpfil/pf/pf_norm.c
+++ b/sys/netpfil/pf/pf_norm.c
@@ -794,7 +794,11 @@
}
ip = mtod(m, struct ip *);
+ ip->ip_sum = pf_cksum_fixup(ip->ip_sum, ip->ip_len,
+ htons(hdrlen + total), 0);
ip->ip_len = htons(hdrlen + total);
+ ip->ip_sum = pf_cksum_fixup(ip->ip_sum, ip->ip_off,
+ ip->ip_off & ~(IP_MF|IP_OFFMASK), 0);
ip->ip_off &= ~(IP_MF|IP_OFFMASK);
if (hdrlen + total > IP_MAXPACKET) {
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D30026.diff (485 B)
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D30026: pf: Fix IP checksum on reassembly
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