Bluetooth: Check for matching IRK when looking for paired LE devices

If we're given an RPA when checking whether we're paired or not, we
should consult the local RPA storage whether there's a matching IRK.
This we we ensure that hci_bdaddr_is_paired() gives the right result
even when trying to pair a second time with the same device with an RPA.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 4eba9d6fc9a5..e3bbdd537b90 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2519,6 +2519,7 @@ void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type)
 bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 {
         struct smp_ltk *k;
+        struct smp_irk *irk;
         u8 addr_type;
 
         if (type == BDADDR_BREDR) {
@@ -2533,6 +2534,12 @@ bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
         else
                 addr_type = ADDR_LE_DEV_RANDOM;
 
+        irk = hci_get_irk(hdev, bdaddr, addr_type);
+        if (irk) {
+                bdaddr = &irk->bdaddr;
+                addr_type = irk->addr_type;
+        }
+
         rcu_read_lock();
         list_for_each_entry_rcu(k, &hdev->long_term_keys, list) {
                 if (k->bdaddr_type == addr_type && !bacmp(bdaddr, &k->bdaddr)) {