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esp_prov : Catch DBus exception when reading/writing to BLE GATT characteristic

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This is useful in the context of provisioning when server initiates disconnection if secure session establishment fails.
This commit is contained in:
Anurag Kar
2019-03-14 17:28:26 +05:30
parent c92e677da4
commit 2f26bb2e65
1 changed files with 11 additions and 2 deletions
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13
tools/esp_prov/transport/ble_cli.py
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@ -162,8 +162,17 @@ class BLE_Bluez_Client:
path = self.characteristics[characteristic_uuid]
except KeyError:
raise RuntimeError("Invalid characteristic : " + characteristic_uuid)
path.WriteValue([ord(c) for c in data], {}, dbus_interface='org.bluez.GattCharacteristic1')
return ''.join(chr(b) for b in path.ReadValue({}, dbus_interface='org.bluez.GattCharacteristic1'))
try:
path.WriteValue([ord(c) for c in data], {}, dbus_interface='org.bluez.GattCharacteristic1')
except dbus.exceptions.DBusException as e:
raise RuntimeError("Failed to write value to characteristic " + characteristic_uuid + ": " + str(e))
try:
readval = path.ReadValue({}, dbus_interface='org.bluez.GattCharacteristic1')
except dbus.exceptions.DBusException as e:
raise RuntimeError("Failed to read value from characteristic " + characteristic_uuid + ": " + str(e))
return ''.join(chr(b) for b in readval)
# --------------------------------------------------------------------