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|
# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018-2021 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import asyncio
from typing import Dict
from typing import Optional
from pyghmi.ipmi.command import Command as IpmiCommand
from ...logging import get_logger
from ... import aiotools
from ...yamlconf import Option
from ...validators.basic import valid_float_f01
from ...validators.net import valid_ip_or_host
from ...validators.net import valid_port
from . import GpioDriverOfflineError
from . import BaseUserGpioDriver
# =====
_OUTPUTS = {
1: "on",
2: "off",
3: "shutdown",
4: "reset",
5: "boot",
}
# =====
class Plugin(BaseUserGpioDriver):
def __init__( # pylint: disable=super-init-not-called
self,
instance_name: str,
notifier: aiotools.AioNotifier,
host: str,
port: int,
user: str,
passwd: str,
state_poll: float,
) -> None:
super().__init__(instance_name, notifier)
self.__host = host
self.__port = port
self.__user = user
self.__passwd = passwd
self.__state_poll = state_poll
self.__online = False
self.__power = False
@classmethod
def get_plugin_options(cls) -> Dict:
return {
"host": Option("", type=valid_ip_or_host),
"port": Option(623, type=valid_port),
"user": Option(""),
"passwd": Option(""),
"state_poll": Option(1.0, type=valid_float_f01),
}
def register_input(self, pin: int, debounce: float) -> None:
_ = debounce
if pin != 0:
raise RuntimeError(f"Unsupported mode 'input' for pin={pin} on {self}")
def register_output(self, pin: int, initial: Optional[bool]) -> None:
_ = initial
if pin not in _OUTPUTS:
raise RuntimeError(f"Unsupported mode 'output' for pin={pin} on {self}")
def prepare(self) -> None:
get_logger(0).info("Probing driver %s on %s:%d ...", self, self.__host, self.__port)
async def run(self) -> None:
prev = (False, False)
while True:
await aiotools.run_async(self.__update_power)
new = (self.__online, self.__power)
if new != prev:
await self._notifier.notify()
prev = new
await asyncio.sleep(self.__state_poll)
def cleanup(self) -> None:
pass
def read(self, pin: int) -> bool:
if not self.__online:
raise GpioDriverOfflineError(self)
if pin == 0:
return self.__power
return False
def write(self, pin: int, state: bool) -> None:
if not self.__online:
raise GpioDriverOfflineError(self)
request = _OUTPUTS[pin]
try:
self.__make_command().set_power(request)
except Exception:
get_logger(0).exception("Can't send IPMI power-%s request to %s:%d", request, self.__host, self.__port)
raise GpioDriverOfflineError(self)
# =====
def __update_power(self) -> None:
try:
self.__power = (self.__make_command().get_power()["powerstate"] == "on")
self.__online = True
except Exception:
self.__online = self.__power = False
get_logger(0).exception("Can't fetch IPMI power status from %s:%d", self.__host, self.__port)
def __make_command(self) -> IpmiCommand:
return IpmiCommand(
bmc=self.__host,
port=self.__port,
userid=(self.__user or None),
password=(self.__passwd or None),
)
def __str__(self) -> str:
return f"IPMI({self._instance_name})"
__repr__ = __str__
|
