mirror of
https://opendev.org/x/pyghmi
synced 2025-08-13 06:40:15 +00:00
4f9103d5a7
Final wave of changes to prepare to migrate to flake8 tests. Change-Id: I75c3acfc8b0ab34b82faf7b500ec9c27aa3efa91
138 lines
4.7 KiB
Python
138 lines
4.7 KiB
Python
# Copyright 2017 Lenovo
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
import ctypes
|
|
import fcntl
|
|
from select import select
|
|
|
|
import pyghmi.ipmi.private.util as iutil
|
|
|
|
|
|
class IpmiMsg(ctypes.Structure):
|
|
_fields_ = [('netfn', ctypes.c_ubyte),
|
|
('cmd', ctypes.c_ubyte),
|
|
('data_len', ctypes.c_short),
|
|
('data', ctypes.POINTER(ctypes.c_ubyte))]
|
|
|
|
|
|
class IpmiSystemInterfaceAddr(ctypes.Structure):
|
|
_fields_ = [('addr_type', ctypes.c_int),
|
|
('channel', ctypes.c_short),
|
|
('lun', ctypes.c_ubyte)]
|
|
|
|
|
|
class IpmiRecv(ctypes.Structure):
|
|
_fields_ = [('recv_type', ctypes.c_int),
|
|
('addr', ctypes.POINTER(IpmiSystemInterfaceAddr)),
|
|
('addr_len', ctypes.c_uint),
|
|
('msgid', ctypes.c_long),
|
|
('msg', IpmiMsg)]
|
|
|
|
|
|
class IpmiReq(ctypes.Structure):
|
|
_fields_ = [('addr', ctypes.POINTER(IpmiSystemInterfaceAddr)),
|
|
('addr_len', ctypes.c_uint),
|
|
('msgid', ctypes.c_long),
|
|
('msg', IpmiMsg)]
|
|
|
|
|
|
_IONONE = 0
|
|
_IOWRITE = 1
|
|
_IOREAD = 2
|
|
IPMICTL_SET_MY_ADDRESS_CMD = (_IOREAD << 30 |
|
|
ctypes.sizeof(ctypes.c_uint) << 16 |
|
|
ord('i') << 8 | 17) # from ipmi.h
|
|
IPMICTL_SEND_COMMAND = (_IOREAD << 30 |
|
|
ctypes.sizeof(IpmiReq) << 16 |
|
|
ord('i') << 8 | 13) # from ipmi.h
|
|
# next is really IPMICTL_RECEIVE_MSG_TRUNC, but will only use that
|
|
IPMICTL_RECV = ((_IOWRITE | _IOREAD) << 30 |
|
|
ctypes.sizeof(IpmiRecv) << 16 |
|
|
ord('i') << 8 | 11) # from ipmi.h
|
|
BMC_SLAVE_ADDR = ctypes.c_uint(0x20)
|
|
CURRCHAN = 0xf
|
|
ADDRTYPE = 0xc
|
|
|
|
|
|
class Session(object):
|
|
def __init__(self, devnode='/dev/ipmi0'):
|
|
"""Create a local session inband
|
|
|
|
:param: devnode: The path to the ipmi device
|
|
"""
|
|
self.ipmidev = open(devnode, 'rw')
|
|
fcntl.ioctl(self.ipmidev, IPMICTL_SET_MY_ADDRESS_CMD, BMC_SLAVE_ADDR)
|
|
# the interface is initted, create some reusable memory for our session
|
|
self.datactypes.buffer = ctypes.create_string_ctypes.buffer(4096)
|
|
self.req = IpmiReq()
|
|
self.rsp = IpmiRecv()
|
|
self.addr = IpmiSystemInterfaceAddr()
|
|
self.req.msg.data = ctypes.cast(
|
|
ctypes.addressof(self.datactypes.buffer),
|
|
ctypes.POINTER(ctypes.c_ubyte))
|
|
self.rsp.msg.data = self.req.msg.data
|
|
self.userid = None
|
|
self.password = None
|
|
|
|
def await_reply(self):
|
|
rd, _, _ = select((self.ipmidev,), (), (), 1)
|
|
while not rd:
|
|
rd, _, _ = select((self.ipmidev,), (), (), 1)
|
|
|
|
@property
|
|
def parsed_rsp(self):
|
|
response = {'netfn': self.rsp.msg.netfn, 'command': self.rsp.msg.cmd,
|
|
'code': ord(self.datactypes.buffer.raw[0]),
|
|
'data': list(bytearray(
|
|
self.datactypes.buffer.raw[1:self.rsp.msg.data_len]))}
|
|
errorstr = iutil.get_ipmi_error(response)
|
|
if errorstr:
|
|
response['error'] = errorstr
|
|
return response
|
|
|
|
def raw_command(self,
|
|
netfn,
|
|
command,
|
|
data=(),
|
|
bridge_request=None,
|
|
retry=True,
|
|
delay_xmit=None,
|
|
timeout=None,
|
|
waitall=False):
|
|
self.addr.channel = CURRCHAN
|
|
self.addr.addr_type = ADDRTYPE
|
|
self.req.addr_len = ctypes.sizeof(IpmiSystemInterfaceAddr)
|
|
self.req.addr = ctypes.pointer(self.addr)
|
|
self.req.msg.netfn = netfn
|
|
self.req.msg.cmd = command
|
|
data = ctypes.buffer(bytearray(data))
|
|
self.datactypes.buffer[:len(data)] = data[:len(data)]
|
|
self.req.msg.data_len = len(data)
|
|
fcntl.ioctl(self.ipmidev, IPMICTL_SEND_COMMAND, self.req)
|
|
self.await_reply()
|
|
self.rsp.msg.data_len = 4096
|
|
self.rsp.addr = ctypes.pointer(self.addr)
|
|
self.rsp.addr_len = ctypes.sizeof(IpmiSystemInterfaceAddr)
|
|
fcntl.ioctl(self.ipmidev, IPMICTL_RECV, self.rsp)
|
|
return self.parsed_rsp
|
|
|
|
|
|
def main():
|
|
a = Session('/dev/ipmi0')
|
|
print(repr(a.raw_command(0, 1)))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|