61 lines
1.7 KiB
Python
61 lines
1.7 KiB
Python
"""The ping component."""
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from __future__ import annotations
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import logging
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from icmplib import SocketPermissionError, ping as icmp_ping
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from homeassistant.core import callback
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from homeassistant.helpers.reload import async_setup_reload_service
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from .const import DEFAULT_START_ID, DOMAIN, MAX_PING_ID, PING_ID, PING_PRIVS, PLATFORMS
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_LOGGER = logging.getLogger(__name__)
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async def async_setup(hass, config):
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"""Set up the template integration."""
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await async_setup_reload_service(hass, DOMAIN, PLATFORMS)
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hass.data[DOMAIN] = {
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PING_PRIVS: await hass.async_add_executor_job(_can_use_icmp_lib_with_privilege),
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PING_ID: DEFAULT_START_ID,
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}
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return True
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@callback
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def async_get_next_ping_id(hass):
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"""Find the next id to use in the outbound ping.
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Must be called in async
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"""
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current_id = hass.data[DOMAIN][PING_ID]
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if current_id == MAX_PING_ID:
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next_id = DEFAULT_START_ID
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else:
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next_id = current_id + 1
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hass.data[DOMAIN][PING_ID] = next_id
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return next_id
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def _can_use_icmp_lib_with_privilege() -> None | bool:
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"""Verify we can create a raw socket."""
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try:
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icmp_ping("127.0.0.1", count=0, timeout=0, privileged=True)
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except SocketPermissionError:
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try:
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icmp_ping("127.0.0.1", count=0, timeout=0, privileged=False)
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except SocketPermissionError:
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_LOGGER.debug(
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"Cannot use icmplib because privileges are insufficient to create the socket"
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)
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return None
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else:
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_LOGGER.debug("Using icmplib in privileged=False mode")
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return False
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else:
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_LOGGER.debug("Using icmplib in privileged=True mode")
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return True
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