transport: gatt: enforce Bluetooth Secure Connections

This enforces Bluetooth Security Level 2, with LE Secure Connections.

Signed-off-by: Marcin Niestroj <[email protected]>

Author: mniestroj

src/transport/gatt/device_cert_characteristic.c

@@ -97,7 +97,7 @@ static ssize_t device_cert_read(struct bt_conn *conn,
 POUCH_GATT_CHARACTERISTIC(device_cert,
                           (const struct bt_uuid *) &pouch_gatt_device_cert_chrc_uuid,
                           BT_GATT_CHRC_READ,
-                          BT_GATT_PERM_READ,
+                          BT_GATT_PERM_READ_LESC,
                           device_cert_read,
                           NULL,
                           &device_cert_chrc_ctx);

src/transport/gatt/downlink_characteristic.c

@@ -52,7 +52,7 @@ ssize_t downlink_write(struct bt_conn *conn,
 POUCH_GATT_CHARACTERISTIC(downlink,
                           (const struct bt_uuid *) &pouch_gatt_downlink_chrc_uuid,
                           BT_GATT_CHRC_WRITE,
-                          BT_GATT_PERM_WRITE,
+                          BT_GATT_PERM_WRITE_LESC,
                           NULL,
                           downlink_write,
                           NULL);

src/transport/gatt/info_characteristic.c

@@ -124,7 +124,7 @@ static ssize_t info_read(struct bt_conn *conn,
 POUCH_GATT_CHARACTERISTIC(info,
                           (const struct bt_uuid *) &pouch_gatt_info_chrc_uuid,
                           BT_GATT_CHRC_READ,
-                          BT_GATT_PERM_READ,
+                          BT_GATT_PERM_READ_LESC,
                           info_read,
                           NULL,
                           &info_chrc_ctx);

src/transport/gatt/server_cert_characteristic.c

@@ -153,7 +153,7 @@ static ssize_t server_cert_write(struct bt_conn *conn,
 POUCH_GATT_CHARACTERISTIC(server_cert,
                           (const struct bt_uuid *) &pouch_gatt_server_cert_chrc_uuid,
                           BT_GATT_CHRC_READ | BT_GATT_CHRC_WRITE,
-                          BT_GATT_PERM_READ | BT_GATT_PERM_WRITE,
+                          BT_GATT_PERM_READ_LESC | BT_GATT_PERM_WRITE_LESC,
                           server_cert_serial_read,
                           server_cert_write,
                           &server_cert_chrc_ctx);

src/transport/gatt/uplink_characteristic.c

@@ -198,7 +198,7 @@ static void uplink_indicate_destroy(struct bt_gatt_indicate_params *params)
 POUCH_GATT_CHARACTERISTIC(uplink,
                           (const struct bt_uuid *) &pouch_gatt_uplink_chrc_uuid,
                           BT_GATT_CHRC_READ | BT_GATT_CHRC_INDICATE,
-                          BT_GATT_PERM_READ,
+                          BT_GATT_PERM_READ_LESC,
                           uplink_read,
                           NULL,
                           &uplink_chrc_ctx);