160 lines
6.3 KiB
Python
160 lines
6.3 KiB
Python
import configparser
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import datetime
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import ipaddress
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import os
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import uuid
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##
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import aif.utils
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# TODO: auto dev assignment
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class Connection(object):
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def __init__(self, iface_xml):
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self.xml = iface_xml
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self.id = self.xml.attrib['id']
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self.device = self.xml.attrib['device']
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self.is_defroute = aif.utils.xmlBool(self.xml.attrib.get('defroute', 'false'))
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self.domain = self.xml.attrib.get('searchDomain', None)
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self._cfg = None
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self.connection_type = None
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self.provider_type = 'NetworkManager'
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self.addrs = {'ipv4': set(),
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'ipv6': set()}
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self.resolvers = []
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self.uuid = uuid.uuid4()
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self._initAddrs()
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self._initResolvers()
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def _initAddrs(self):
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# These tuples follow either:
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# ('dhcp'/'dhcp6'/'slaac', None, None) for auto configuration
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# (ipaddress.IPv4/6Address(IP), CIDR, ipaddress.IPv4/6Address(GW)) for static configuration
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for addrtype in ('ipv4', 'ipv6'):
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for a in self.xml.findall('addresses/{0}/address'.format(addrtype)):
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if a.text in ('dhcp', 'dhcp6', 'slaac'):
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addr = a.text
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net = None
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gw = None
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else:
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components = a.text.split('/')
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if len(components) > 2:
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raise ValueError('Invalid IP/CIDR format: {0}'.format(a.text))
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if len(components) == 1:
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addr = components[0]
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if addrtype == 'ipv4':
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components.append('24')
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elif addrtype == 'ipv6':
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components.append('64')
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addr = ipaddress.ip_address(components[0])
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net = ipaddress.ip_network('/'.join(components), strict = False)
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gw = ipaddress.ip_address(a.attrib.get('gateway'))
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self.addrs[addrtype].add((addr, net, gw))
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self.addrs[addrtype] = list(self.addrs[addrtype])
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return()
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def _initCfg(self):
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self._cfg = configparser.ConfigParser()
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self._cfg.optionxform = str
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self._cfg['connection'] = {'id': self.id,
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'uuid': self.uuid,
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'type': self.connection_type,
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'interface-name': self.device,
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'permissions': '',
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'timestamp': datetime.datetime.utcnow().timestamp()}
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# We *theoretically* could do this in _initAddrs() but we do it separately so we can trim out duplicates.
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for addrtype, addrs in self.addrs.items():
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self._cfg[addrtype] = {}
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cidr_gws = {}
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self._cfg[addrtype]['dns-search'] = (self.domain if self.domain else '')
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if addrtype == 'ipv6':
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self._cfg[addrtype]['addr-gen-mode'] = 'stable-privacy'
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if not addrs:
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self._cfg[addrtype]['method'] = 'ignore'
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else:
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self._cfg[addrtype]['method'] = 'manual'
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for idx, (ip, cidr, gw) in enumerate(addrs):
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if cidr not in cidr_gws.keys():
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cidr_gws[cidr] = gw
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new_cidr = True
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else:
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new_cidr = False
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if addrtype == 'ipv4':
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if ip == 'dhcp':
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self._cfg[addrtype]['method'] = 'auto'
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continue
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elif addrtype == 'ipv6':
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if ip == 'dhcp6':
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self._cfg[addrtype]['method'] = 'dhcp'
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continue
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elif ip == 'slaac':
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self._cfg[addrtype]['method'] = 'auto'
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continue
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addrnum = idx + 1
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addr_str = '{0}/{1}'.format(str(ip), str(cidr.prefixlen))
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if new_cidr:
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addr_str = '{0},{1}'.format(addr_str, str(gw))
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self._cfg[addrtype]['address{0}'.format(addrnum)] = addr_str
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for r in self.resolvers:
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if addrtype == 'ipv{0}'.format(r.version):
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if 'dns' not in self._cfg[addrtype]:
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self._cfg[addrtype]['dns'] = []
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self._cfg[addrtype]['dns'].append(str(r))
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if 'dns' in self._cfg[addrtype].keys():
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self._cfg[addrtype]['dns'] = '{0};'.format(';'.join(self._cfg[addrtype]['dns']))
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self._initConnCfg()
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return()
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def _initConnCfg(self):
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# A dummy method; this is overridden by the subclasses.
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# It's honestly here to make my IDE stop complaining. :)
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pass
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return()
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def _initResolvers(self):
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for r in self.xml.findall('resolvers/resolver'):
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resolver = ipaddress.ip_address(r.text)
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if resolver not in self.resolvers:
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self.resolvers.append(resolver)
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return()
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def writeConf(self, chroot_base):
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cfgroot = os.path.join(chroot_base, 'etc', 'NetworkManager')
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cfgdir = os.path.join(cfgroot, 'system-connections')
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cfgpath = os.path.join(cfgdir, '{0}.nmconnection'.format(self.id))
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os.makedirs(cfgdir, exist_ok = True)
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with open(cfgpath, 'w') as fh:
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self._cfg.write(fh, space_around_delimiters = False)
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for root, dirs, files in os.walk(cfgroot):
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os.chown(root, 0, 0)
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for d in dirs:
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dpath = os.path.join(root, d)
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os.chown(dpath, 0, 0)
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for f in files:
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fpath = os.path.join(root, f)
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os.chown(fpath, 0, 0)
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os.chmod(cfgroot, 0o0755)
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os.chmod(cfgdir, 0o0700)
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os.chmod(cfgpath, 0o0600)
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return()
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class Ethernet(Connection):
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def __init__(self, iface_xml):
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super().__init__(iface_xml)
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self.connection_type = 'ethernet'
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self._initCfg()
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def _initConnCfg(self):
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pass
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class Wireless(Connection):
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def __init__(self, iface_xml):
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super().__init__(iface_xml)
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self.connection_type = 'wireless'
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self._initCfg()
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def _initConnCfg(self):
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pass
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