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authorAtzm Watanabe <atzm@stratosphere.co.jp>2013-12-17 22:53:36 +0900
committerDavid S. Miller <davem@davemloft.net>2013-12-18 00:36:16 -0500
commite4d26f4b080f55e9577b45e6b51a04971eb459e9 (patch)
treee7caf4bc1439ce04ac392d94dd71c13aaf90f0e4 /net/packet
parent51846355bc239b7d229ed7a1ea7b0333cbd23f01 (diff)
downloadblackbird-op-linux-e4d26f4b080f55e9577b45e6b51a04971eb459e9.tar.gz
blackbird-op-linux-e4d26f4b080f55e9577b45e6b51a04971eb459e9.zip
packet: fill the gap of TPACKET_ALIGNMENT with zeros
struct tpacket{2,3}_hdr is aligned to a multiple of TPACKET_ALIGNMENT. Explicitly defining and zeroing the gap of this makes additional changes easier. Signed-off-by: Atzm Watanabe <atzm@stratosphere.co.jp> Acked-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
-rw-r--r--net/packet/af_packet.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4fd52181b6ce..f281999ba92e 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1929,7 +1929,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
} else {
h.h2->tp_vlan_tci = 0;
}
- h.h2->tp_padding = 0;
+ memset(h.h2->tp_padding, 0, sizeof(h.h2->tp_padding));
hdrlen = sizeof(*h.h2);
break;
case TPACKET_V3:
@@ -1943,6 +1943,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
h.h3->tp_net = netoff;
h.h3->tp_sec = ts.tv_sec;
h.h3->tp_nsec = ts.tv_nsec;
+ memset(h.h3->tp_padding, 0, sizeof(h.h3->tp_padding));
hdrlen = sizeof(*h.h3);
break;
default:
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