feat(ble): add command to erase bond belonging to currently connected…

… device

[no changelog]

west/trezor/trezor-ble/src/ble/ble_internal.h

@@ -98,6 +98,8 @@ void management_send_pairing_cancelled_event(void);
 bool bonds_erase_all(void);
 // Get number of bonded devices
 int bonds_get_count(void);
+// Erase current bond
+bool bonds_erase_current(void);
 
 // Advertising functions
 // Initialization

west/trezor/trezor-ble/src/ble/bonds.c

@@ -21,6 +21,7 @@
 #include <zephyr/types.h>
 
 #include <zephyr/bluetooth/bluetooth.h>
+#include <zephyr/bluetooth/conn.h>
 
 #include <zephyr/logging/log.h>
 
@@ -57,3 +58,26 @@ int bonds_get_count(void) {
 
   return bond_cnt;
 }
+
+
+bool bonds_erase_current(void) {
+  int err;
+  struct bt_conn * current = connection_get_current();
+
+  if (current == NULL) {
+    return false;
+  }
+
+  struct bt_conn_info info;
+
+  err = bt_conn_get_info(current, &info);
+  if (err) {
+    LOG_ERR("Failed to get connection info (err %d)", err);
+    return false;
+  }
+
+
+  err = bt_unpair(BT_ID_DEFAULT, &info.le.dst);
+
+  return err == 0;
+}