Sets the sequence number in the frame format. Without this fix, the sequence
number is always set to 0. This makes trafic analysis very hard.
Signed-off-by: Tony Cheneau <tony.chen...@amnesiak.org>
---
net/ieee802154/6lowpan.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index f952451..d1d4ee6 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -573,6 +573,7 @@ static int lowpan_header_create(struct sk_buff *skb,
*/
{
mac_cb(skb)->flags = IEEE802154_FC_TYPE_DATA;
+ mac_cb(skb)->seq = ieee802154_mlme_ops(dev)->get_dsn(dev);
/* prepare wpan address data */
sa.addr_type = IEEE802154_ADDR_LONG;
@@ -1127,6 +1128,12 @@ static u16 lowpan_get_short_addr(const struct net_device
*dev)
return ieee802154_mlme_ops(real_dev)->get_short_addr(real_dev);
}
+static u8 lowpan_get_dsn(const struct net_device *dev)
+{
+ struct net_device *real_dev = lowpan_dev_info(dev)->real_dev;
+ return ieee802154_mlme_ops(real_dev)->get_dsn(real_dev);
+}
+
static struct header_ops lowpan_header_ops = {
.create = lowpan_header_create,
};
@@ -1140,6 +1147,7 @@ static struct ieee802154_mlme_ops lowpan_mlme = {
.get_pan_id = lowpan_get_pan_id,
.get_phy = lowpan_get_phy,
.get_short_addr = lowpan_get_short_addr,
+ .get_dsn = lowpan_get_dsn,
};
static void lowpan_setup(struct net_device *dev)
--
1.7.12.4
------------------------------------------------------------------------------
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