commit 16b908396fbf1be49d417ffdb4a8b41c8c8cb670
author Vinicius Costa Gomes <vinicius.gomes@openbossa.org> Thu Jul 07 18:59:39 2011 -0300
committer Gustavo F. Padovan <padovan@profusion.mobi> Fri Jul 08 17:37:07 2011 -0300
tree db945f3115be52ff245da72c23834fff441bf056
parent 54790f73a3ec87c181e4d6e5eb6963de3d50ebd7

Bluetooth: Add support for storing the LTK

Now when the LTK is received from the remote or generated it is stored,
so it can later be used.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

net/bluetooth/smp.c

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index ffbfdd9..600a70b 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -496,18 +496,23 @@
 
 static int smp_cmd_encrypt_info(struct l2cap_conn *conn, struct sk_buff *skb)
 {
-	BT_DBG("conn %p", conn);
-	/* FIXME: store the ltk */
+	struct smp_cmd_encrypt_info *rp = (void *) skb->data;
+
+	skb_pull(skb, sizeof(*rp));
+
+	memcpy(conn->tk, rp->ltk, sizeof(conn->tk));
+
 	return 0;
 }
 
 static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
 {
-	struct smp_cmd_pairing *paircmd = (void *) &conn->prsp[1];
-	u8 keydist = paircmd->init_key_dist;
+	struct smp_cmd_master_ident *rp = (void *) skb->data;
 
-	BT_DBG("keydist 0x%x", keydist);
-	/* FIXME: store ediv and rand */
+	skb_pull(skb, sizeof(*rp));
+
+	hci_add_ltk(conn->hcon->hdev, 1, conn->src, rp->ediv,
+						rp->rand, conn->tk);
 
 	smp_distribute_keys(conn, 1);
 
@@ -632,6 +637,9 @@
 
 		smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc);
 
+		hci_add_ltk(conn->hcon->hdev, 1, conn->dst, ediv,
+							ident.rand, enc.ltk);
+
 		ident.ediv = cpu_to_le16(ediv);
 
 		smp_send_cmd(conn, SMP_CMD_MASTER_IDENT, sizeof(ident), &ident);