Bluetooth: Implement link key handling for the management interface
This patch adds a management commands to feed the kernel with all stored
link keys as well as remove specific ones or all of them. Once the
load_keys command has been called the kernel takes over link key
replies. A new_key event is also added to inform userspace of newly
created link keys that should be stored permanently.
Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9ce46cd..08fbf12 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -82,6 +82,8 @@
HCI_MGMT,
HCI_PAIRABLE,
HCI_SERVICE_CACHE,
+ HCI_LINK_KEYS,
+ HCI_DEBUG_KEYS,
};
/* HCI ioctl defines */
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e62da08..009fa63 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -73,6 +73,14 @@
u8 svc_hint;
};
+struct link_key {
+ struct list_head list;
+ bdaddr_t bdaddr;
+ u8 type;
+ u8 val[16];
+ u8 pin_len;
+};
+
#define NUM_REASSEMBLY 4
struct hci_dev {
struct list_head list;
@@ -153,6 +161,8 @@
struct list_head uuids;
+ struct list_head link_keys;
+
struct hci_dev_stats stat;
struct sk_buff_head driver_init;
@@ -461,6 +471,12 @@
int hci_uuids_clear(struct hci_dev *hdev);
+int hci_link_keys_clear(struct hci_dev *hdev);
+struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
+int hci_add_link_key(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
+ u8 *key, u8 type, u8 pin_len);
+int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
+
void hci_del_off_timer(struct hci_dev *hdev);
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
@@ -697,6 +713,7 @@
int mgmt_powered(u16 index, u8 powered);
int mgmt_discoverable(u16 index, u8 discoverable);
int mgmt_connectable(u16 index, u8 connectable);
+int mgmt_new_key(u16 index, struct link_key *key, u8 old_key_type);
/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index b092c4c..56b500a 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -98,6 +98,28 @@
__u8 enable;
} __packed;
+struct mgmt_key_info {
+ bdaddr_t bdaddr;
+ u8 type;
+ u8 val[16];
+ u8 pin_len;
+} __packed;
+
+#define MGMT_OP_LOAD_KEYS 0x000D
+struct mgmt_cp_load_keys {
+ __le16 index;
+ __u8 debug_keys;
+ __le16 key_count;
+ struct mgmt_key_info keys[0];
+} __packed;
+
+#define MGMT_OP_REMOVE_KEY 0x000E
+struct mgmt_cp_remove_key {
+ __le16 index;
+ bdaddr_t bdaddr;
+ __u8 disconnect;
+} __packed;
+
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
__le16 opcode;
@@ -133,3 +155,10 @@
#define MGMT_EV_CONNECTABLE 0x0008
#define MGMT_EV_PAIRABLE 0x0009
+
+#define MGMT_EV_NEW_KEY 0x000A
+struct mgmt_ev_new_key {
+ __le16 index;
+ struct mgmt_key_info key;
+ __u8 old_key_type;
+} __packed;
