[PATCH net-next 08/15] 6lowpan: obtain IEEE802.15.4 sequence number from the MAC layer
DORMANTno replies
From: Tony Cheneau <hidden>
Date: 2012-10-23 04:09:50
Subsystem:
ieee 802.15.4 subsystem, networking [general], the rest · Maintainers:
Alexander Aring, Stefan Schmidt, Miquel Raynal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch 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 <redacted> --- net/ieee802154/6lowpan.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index eb8003b..24b83fa 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c@@ -578,6 +578,7 @@ 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;
@@ -1123,6 +1124,12 @@ 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, };
@@ -1136,6 +1143,7 @@ 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)
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1.7.8.6
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