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'Interface' parameter added to discovery process (#79)

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* 'Interface' parameter added to discovery process

Some systems (for example dd-wrt) requires specifying the network interface name, otherwise the broadcast does not work

* 'Interface' variable type and check fixed

* Formatting fixed

* Update kasa/discover.py

Co-authored-by: Teemu R. <tpr@iki.fi>

Co-authored-by: Teemu R. <tpr@iki.fi>
This commit is contained in:
Dmitrii Eliuseev 2020-07-28 23:20:58 +02:00 committed by GitHub
parent c67bda8230
commit 1cd1e84f78
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1 changed files with 7 additions and 1 deletions
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kasa/discover.py
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@ -3,7 +3,7 @@ import asyncio
import json
import logging
import socket
from typing import Awaitable, Callable, Dict, Mapping, Type, Union, cast
from typing import Awaitable, Callable, Dict, Mapping, Optional, Type, Union, cast
from kasa.protocol import TPLinkSmartHomeProtocol
from kasa.smartbulb import SmartBulb
@ -35,10 +35,12 @@ class _DiscoverProtocol(asyncio.DatagramProtocol):
target: str = "255.255.255.255",
timeout: int = 5,
discovery_packets: int = 3,
interface: Optional[str] = None,
):
self.transport = None
self.tries = discovery_packets
self.timeout = timeout
self.interface = interface
self.on_discovered = on_discovered
self.protocol = TPLinkSmartHomeProtocol()
self.target = (target, Discover.DISCOVERY_PORT)
@ -51,6 +53,8 @@ class _DiscoverProtocol(asyncio.DatagramProtocol):
sock = transport.get_extra_info("socket")
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
if self.interface is not None:
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, self.interface.encode())
self.do_discover()
@ -145,6 +149,7 @@ class Discover:
timeout=5,
discovery_packets=3,
return_raw=False,
interface=None,
) -> Mapping[str, Union[SmartDevice, Dict]]:
"""Discover supported devices.
@ -171,6 +176,7 @@ class Discover:
on_discovered=on_discovered,
timeout=timeout,
discovery_packets=discovery_packets,
interface=interface,
),
local_addr=("0.0.0.0", 0),
)