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authorae <ae@FreeBSD.org>2015-04-28 09:29:28 +0000
committerae <ae@FreeBSD.org>2015-04-28 09:29:28 +0000
commitb9d4da35fafa515f4a572c0e36e44613383a277f (patch)
treed7c63f48146300a18c0d0f836d256d80beaf7dba /sys/netipsec
parent70befe4134fd1eb44b97a7fecb015917c4bcde77 (diff)
downloadFreeBSD-src-b9d4da35fafa515f4a572c0e36e44613383a277f.zip
FreeBSD-src-b9d4da35fafa515f4a572c0e36e44613383a277f.tar.gz
Since PFIL can change mbuf pointer, we should update pointers after
calling ipsec_filter(). Sponsored by: Yandex LLC
Diffstat (limited to 'sys/netipsec')
-rw-r--r--sys/netipsec/ipsec_input.c1
-rw-r--r--sys/netipsec/ipsec_output.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/sys/netipsec/ipsec_input.c b/sys/netipsec/ipsec_input.c
index 6c52781..5837699 100644
--- a/sys/netipsec/ipsec_input.c
+++ b/sys/netipsec/ipsec_input.c
@@ -391,6 +391,7 @@ ipsec4_common_input_cb(struct mbuf *m, struct secasvar *sav, int skip,
ipsec_bpf(m, sav, AF_INET, ENC_IN|ENC_BEFORE);
if ((error = ipsec_filter(&m, PFIL_IN, ENC_IN|ENC_BEFORE)) != 0)
return (error);
+ ip = mtod(m, struct ip *);
#endif /* DEV_ENC */
/* IP-in-IP encapsulation */
diff --git a/sys/netipsec/ipsec_output.c b/sys/netipsec/ipsec_output.c
index 22a50c4..c08ac3a 100644
--- a/sys/netipsec/ipsec_output.c
+++ b/sys/netipsec/ipsec_output.c
@@ -578,6 +578,7 @@ ipsec4_process_packet(struct mbuf *m, struct ipsecrequest *isr)
/* pass the mbuf to enc0 for packet filtering */
if ((error = ipsec_filter(&m, PFIL_OUT, ENC_OUT|ENC_BEFORE)) != 0)
goto bad;
+ ip = mtod(m, struct ip *);
#endif
/* Do the appropriate encapsulation, if necessary */
if (isr->saidx.mode == IPSEC_MODE_TUNNEL || /* Tunnel requ'd */
@@ -699,6 +700,7 @@ ipsec6_process_packet(struct mbuf *m, struct ipsecrequest *isr)
/* pass the mbuf to enc0 for packet filtering */
if ((error = ipsec_filter(&m, PFIL_OUT, ENC_OUT|ENC_BEFORE)) != 0)
goto bad;
+ ip6 = mtod(m, struct ip6_hdr *);
#endif /* DEV_ENC */
/* Do the appropriate encapsulation, if necessary */
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