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authorHannes Frederic Sowa <hannes@stressinduktion.org>2013-12-05 23:29:19 +0100
committerDavid S. Miller <davem@davemloft.net>2013-12-05 23:42:38 -0500
commit239c78db9c41a8f524cce60507440d72229d73bc (patch)
treea6077165590afb1b2b2ed70d2b883ff67f2e8585 /net/core
parent7f2cbdc28c034ef2c3be729681f631d5744e3cd5 (diff)
net: clear local_df when passing skb between namespaces
We must clear local_df when passing the skb between namespaces as the packet is not local to the new namespace any more and thus may not get fragmented by local rules. Fred Templin noticed that other namespaces do fragment IPv6 packets while forwarding. Instead they should have send back a PTB. The same problem should be present when forwarding DF-IPv4 packets between namespaces. Reported-by: Templin, Fred L <Fred.L.Templin@boeing.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/skbuff.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2718fed53d8c..06e72d3cdf60 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3584,6 +3584,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
skb->tstamp.tv64 = 0;
skb->pkt_type = PACKET_HOST;
skb->skb_iif = 0;
+ skb->local_df = 0;
skb_dst_drop(skb);
skb->mark = 0;
secpath_reset(skb);