Author: ae
Date: Mon Jul 3 08:53:22 2017
New Revision: 320593
URL: https://svnweb.freebsd.org/changeset/base/320593
Log:
MFC r320479:
Fix IPv6 extension header parsing. The length field doesn't include the
first 8 octets.
Obtained from: Yandex LLC
Modified:
stable/11/sys/netpfil/ipfw/nat64/nat64_translate.c
stable/11/sys/netpfil/ipfw/nptv6/nptv6.c
stable/11/sys/netpfil/ipfw/pmod/tcpmod.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/netpfil/ipfw/nat64/nat64_translate.c
==============================================================================
--- stable/11/sys/netpfil/ipfw/nat64/nat64_translate.c Mon Jul 3 08:32:52
2017 (r320592)
+++ stable/11/sys/netpfil/ipfw/nat64/nat64_translate.c Mon Jul 3 08:53:22
2017 (r320593)
@@ -1054,7 +1054,7 @@ nat64_getlasthdr(struct mbuf *m, int *offset)
if (proto == IPPROTO_HOPOPTS && ip6->ip6_plen == 0)
return (-1);
proto = hbh->ip6h_nxt;
- hlen += hbh->ip6h_len << 3;
+ hlen += (hbh->ip6h_len + 1) << 3;
}
if (offset != NULL)
*offset = hlen;
Modified: stable/11/sys/netpfil/ipfw/nptv6/nptv6.c
==============================================================================
--- stable/11/sys/netpfil/ipfw/nptv6/nptv6.c Mon Jul 3 08:32:52 2017
(r320592)
+++ stable/11/sys/netpfil/ipfw/nptv6/nptv6.c Mon Jul 3 08:53:22 2017
(r320593)
@@ -125,7 +125,7 @@ nptv6_getlasthdr(struct nptv6_cfg *cfg, struct mbuf *m
if (m->m_len < hlen)
return (-1);
proto = hbh->ip6h_nxt;
- hlen += hbh->ip6h_len << 3;
+ hlen += (hbh->ip6h_len + 1) << 3;
}
if (offset != NULL)
*offset = hlen;
Modified: stable/11/sys/netpfil/ipfw/pmod/tcpmod.c
==============================================================================
--- stable/11/sys/netpfil/ipfw/pmod/tcpmod.c Mon Jul 3 08:32:52 2017
(r320592)
+++ stable/11/sys/netpfil/ipfw/pmod/tcpmod.c Mon Jul 3 08:53:22 2017
(r320593)
@@ -137,7 +137,7 @@ tcpmod_ipv6_setmss(struct mbuf **mp, uint16_t mss)
proto == IPPROTO_DSTOPTS) {
hbh = mtodo(*mp, hlen);
proto = hbh->ip6h_nxt;
- hlen += hbh->ip6h_len << 3;
+ hlen += (hbh->ip6h_len + 1) << 3;
}
tcp = mtodo(*mp, hlen);
plen = (*mp)->m_pkthdr.len - hlen;
_______________________________________________
svn-src-all@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
