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Bluetooth: Host: Add a configuration for writable name

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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>
This commit is contained in:
Jun Huang 2020-12-03 22:44:50 +08:00 • committed by Anas Nashif
commit 03eb3778e0
2 changed files with 25 additions and 1 deletions
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17
subsys/bluetooth/host/Kconfig.gatt
View file

@ -192,6 +192,23 @@ config BT_DEVICE_NAME_GATT_WRITABLE
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

9
subsys/bluetooth/host/gatt.c
View file

@ -175,7 +175,14 @@ BT_GATT_SERVICE_DEFINE(_2_gap_svc,
/* 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,