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authorAlexander Aring <alex.aring@gmail.com>2015-09-28 09:00:26 +0200
committerMarcel Holtmann <marcel@holtmann.org>2015-09-30 13:16:44 +0200
commitd58a2fa903c18f97aac30cd3c4c8a378a2c647c4 (patch)
tree2360d7c37869ea813208cd451a61b139fc02c323 /net/mac802154/tx.c
parentnl802154: add support for security layer (diff)
downloadlinux-dev-d58a2fa903c18f97aac30cd3c4c8a378a2c647c4.tar.xz
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mac802154: add comments for llsec issues
While doing a little test with the llsec implementation I saw these issues. We should move decryption and encruption somewhere else, otherwise while capturing with wireshark the mac header shows secuirty fields but the payload is plaintext. A complete other issue is what doing with HardMAC drivers where the payload is always plaintext. I think we need a special handling then in userspace. We currently doesn't support any HardMAC transceivers, so we should fix the first issue for SoftMAC transceivers. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/mac802154/tx.c')
-rw-r--r--net/mac802154/tx.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c
index 5ee596e00a6d..b205bbec7bdf 100644
--- a/net/mac802154/tx.c
+++ b/net/mac802154/tx.c
@@ -129,6 +129,10 @@ ieee802154_subif_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
int rc;
+ /* TODO we should move it to wpan_dev_hard_header and dev_hard_header
+ * functions. The reason is wireshark will show a mac header which is
+ * with security fields but the payload is not encrypted.
+ */
rc = mac802154_llsec_encrypt(&sdata->sec, skb);
if (rc) {
netdev_warn(dev, "encryption failed: %i\n", rc);