Bluetooth: Add support for LE Start Encryption
This adds support for starting SMP Phase 2 Encryption, when the initial
SMP negotiation is successful. This adds the LE Start Encryption and LE
Long Term Key Request commands and related events.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index bd285c6..65345cd 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -745,6 +745,33 @@
__le16 max_ce_len;
} __packed;
+#define HCI_OP_LE_START_ENC 0x2019
+struct hci_cp_le_start_enc {
+ __le16 handle;
+ __u8 rand[8];
+ __le16 ediv;
+ __u8 ltk[16];
+} __packed;
+
+#define HCI_OP_LE_LTK_REPLY 0x201a
+struct hci_cp_le_ltk_reply {
+ __le16 handle;
+ __u8 ltk[16];
+} __packed;
+struct hci_rp_le_ltk_reply {
+ __u8 status;
+ __le16 handle;
+} __packed;
+
+#define HCI_OP_LE_LTK_NEG_REPLY 0x201b
+struct hci_cp_le_ltk_neg_reply {
+ __le16 handle;
+} __packed;
+struct hci_rp_le_ltk_neg_reply {
+ __u8 status;
+ __le16 handle;
+} __packed;
+
/* ---- HCI Events ---- */
#define HCI_EV_INQUIRY_COMPLETE 0x01
@@ -1035,6 +1062,13 @@
__u8 clk_accurancy;
} __packed;
+#define HCI_EV_LE_LTK_REQ 0x05
+struct hci_ev_le_ltk_req {
+ __le16 handle;
+ __u8 random[8];
+ __le16 ediv;
+} __packed;
+
/* Advertising report event types */
#define ADV_IND 0x00
#define ADV_DIRECT_IND 0x01
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7837f32..ab6842c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -249,6 +249,7 @@
__u8 power_save;
__u16 disc_timeout;
unsigned long pend;
+ __u8 ltk[16];
__u8 remote_cap;
__u8 remote_oob;
@@ -861,4 +862,9 @@
void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
u16 latency, u16 to_multiplier);
+void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
+ __u8 ltk[16]);
+void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
+void hci_le_ltk_neg_reply(struct hci_conn *conn);
+
#endif /* __HCI_CORE_H */