Bluetooth: Host: Add a configuration for writable name
In the file gatt.c, GAP service contains the Device Name
characteristic. If writable, authentication and authorization may
be defined by a higher layer specification.It means that GATT
clients can write to device name GAP characteristic without
bonding. So we add a configuration for writable name without
bonding.
Signed-off-by: Jun Huang <huangjun6@xiaomi.com>
Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
diff --git a/subsys/bluetooth/host/Kconfig.gatt b/subsys/bluetooth/host/Kconfig.gatt
index 22994ff..54a0f20 100644
--- a/subsys/bluetooth/host/Kconfig.gatt
+++ b/subsys/bluetooth/host/Kconfig.gatt
@@ -192,6 +192,23 @@
Enabling this option allows remote GATT clients to write to device
name GAP characteristic.
+if BT_DEVICE_NAME_GATT_WRITABLE
+config DEVICE_NAME_GATT_WRITABLE_ENCRYPT
+ bool "Encryption required to write name by remote GATT clients"
+ default y
+ help
+ Enabling this option requires the connection to be encrypted to write
+ to the device name GAP characteristic.
+
+
+config DEVICE_NAME_GATT_WRITABLE_AUTHEN
+ bool "Authentication required to write name by remote GATT clients"
+ help
+ Enabling this option requires the connection to be encrypted and
+ authenticated to write to the device name GAP characteristic.
+
+endif #BT_DEVICE_NAME_GATT_WRITABLE
+
if BT_DEBUG
config BT_DEBUG_ATT
diff --git a/subsys/bluetooth/host/gatt.c b/subsys/bluetooth/host/gatt.c
index 1d7575f..cd0c072 100644
--- a/subsys/bluetooth/host/gatt.c
+++ b/subsys/bluetooth/host/gatt.c
@@ -175,7 +175,14 @@
/* Require pairing for writes to device name */
BT_GATT_CHARACTERISTIC(BT_UUID_GAP_DEVICE_NAME,
BT_GATT_CHRC_READ | BT_GATT_CHRC_WRITE,
- BT_GATT_PERM_READ | BT_GATT_PERM_WRITE_ENCRYPT,
+ BT_GATT_PERM_READ |
+#if defined(CONFIG_DEVICE_NAME_GATT_WRITABLE_AUTHEN)
+ BT_GATT_PERM_WRITE_AUTHEN,
+#elif defined(CONFIG_DEVICE_NAME_GATT_WRITABLE_ENCRYPT)
+ BT_GATT_PERM_WRITE_ENCRYPT,
+#else
+ BT_GATT_PERM_WRITE,
+#endif
read_name, write_name, bt_dev.name),
#else
BT_GATT_CHARACTERISTIC(BT_UUID_GAP_DEVICE_NAME, BT_GATT_CHRC_READ,
