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Implement setting IPv4 configuration on target

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As a complement to the previous change to read network configuration data, accept configuration
input and submit to the BMC.

Change-Id: I3d29237c98943fc93c160450861ac9c5d8e7758d
This commit is contained in:
Jarrod Johnson 2015-08-05 13:04:44 -04:00
parent 1cfc4bf4ac
commit 74f7c4d936
1 changed files with 49 additions and 2 deletions
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51
pyghmi/ipmi/command.py
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@ -75,6 +75,10 @@ def _mask_to_cidr(mask):
return cidr
def _cidr_to_mask(prefix):
return struct.pack('>I', 2**prefix-1 << (32-prefix))
class Command(object):
"""Send IPMI commands to BMCs.
@ -593,6 +597,46 @@ class Command(object):
else:
raise Exception("Unrecognized data format " + repr(fetchdata))
def set_net_configuration(self, ipv4_address=None, ipv4_configuration=None,
ipv4_gateway=None, channel=None):
"""Set network configuration data.
Apply desired network configuration data, leaving unspecified
parameters alone.
:param ipv4_address: CIDR notation for IP address and netmask
Example: '192.168.0.10/16'
:param ipv4_configuration: Method to use to configure the network.
'DHCP' or 'Static'.
:param ipv4_gateway: IP address of gateway to use.
:param channel: LAN channel to configure, defaults to autodetect
"""
if channel is None:
channel = self.get_network_channel()
if ipv4_configuration is not None:
cmddata = [channel, 4, 0]
if ipv4_configuration.lower() == 'dhcp':
cmddata[-1] = 2
elif ipv4_configuration.lower() == 'static':
cmddata[-1] = 1
else:
raise Exception('Unrecognized ipv4cfg parameter {0}'.format(
ipv4_configuration))
self.xraw_command(netfn=0xc, command=1, data=cmddata)
if ipv4_address is not None:
netmask = None
if '/' in ipv4_address:
ipv4_address, prefix = ipv4_address.split('/')
netmask = _cidr_to_mask(int(prefix))
cmddata = bytearray((channel, 3)) + socket.inet_aton(ipv4_address)
self.xraw_command(netfn=0xc, command=1, data=cmddata)
if netmask is not None:
cmddata = bytearray((channel, 6)) + netmask
self.xraw_command(netfn=0xc, command=1, data=cmddata)
if ipv4_gateway is not None:
cmddata = bytearray((channel, 12)) + socket.inet_aton(ipv4_gateway)
self.xraw_command(netfn=0xc, command=1, data=cmddata)
def get_net_configuration(self, channel=None):
"""Get network configuration data
@ -605,8 +649,11 @@ class Command(object):
channel = self.get_network_channel()
retdata = {}
v4addr = self._fetch_lancfg_param(channel, 3)
v4masklen = self._fetch_lancfg_param(channel, 6, prefixlen=True)
retdata['ipv4_address'] = '{0}/{1}'.format(v4addr, v4masklen)
if v4addr is None:
retdata['ipv4_address'] = None
else:
v4masklen = self._fetch_lancfg_param(channel, 6, prefixlen=True)
retdata['ipv4_address'] = '{0}/{1}'.format(v4addr, v4masklen)
v4cfgmethods = {
0: 'Unspecified',
1: 'Static',