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-rw-r--r--net/bluetooth/hci_core.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7ba1ca12c1d..4885914449f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1057,6 +1057,42 @@ static int hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn,
return 0;
}
+struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8])
+{
+ struct link_key *k;
+
+ list_for_each_entry(k, &hdev->link_keys, list) {
+ struct key_master_id *id;
+
+ if (k->type != HCI_LK_SMP_LTK)
+ continue;
+
+ if (k->dlen != sizeof(*id))
+ continue;
+
+ id = (void *) &k->data;
+ if (id->ediv == ediv &&
+ (memcmp(rand, id->rand, sizeof(id->rand)) == 0))
+ return k;
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(hci_find_ltk);
+
+struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
+ bdaddr_t *bdaddr, u8 type)
+{
+ struct link_key *k;
+
+ list_for_each_entry(k, &hdev->link_keys, list)
+ if (k->type == type && bacmp(bdaddr, &k->bdaddr) == 0)
+ return k;
+
+ return NULL;
+}
+EXPORT_SYMBOL(hci_find_link_key_type);
+
int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len)
{
@@ -1112,6 +1148,43 @@ int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
return 0;
}
+int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
+ __le16 ediv, u8 rand[8], u8 ltk[16])
+{
+ struct link_key *key, *old_key;
+ struct key_master_id *id;
+ u8 old_key_type;
+
+ BT_DBG("%s addr %s", hdev->name, batostr(bdaddr));
+
+ old_key = hci_find_link_key_type(hdev, bdaddr, HCI_LK_SMP_LTK);
+ if (old_key) {
+ key = old_key;
+ old_key_type = old_key->type;
+ } else {
+ key = kzalloc(sizeof(*key) + sizeof(*id), GFP_ATOMIC);
+ if (!key)
+ return -ENOMEM;
+ list_add(&key->list, &hdev->link_keys);
+ old_key_type = 0xff;
+ }
+
+ key->dlen = sizeof(*id);
+
+ bacpy(&key->bdaddr, bdaddr);
+ memcpy(key->val, ltk, sizeof(key->val));
+ key->type = HCI_LK_SMP_LTK;
+
+ id = (void *) &key->data;
+ id->ediv = ediv;
+ memcpy(id->rand, rand, sizeof(id->rand));
+
+ if (new_key)
+ mgmt_new_key(hdev->id, key, old_key_type);
+
+ return 0;
+}
+
int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr)
{
struct link_key *key;