ba22b1aad8
They now all return a list [ifname, iface]. If no interface was found they return None,None. If one was found, they return the (string) name and the dictionary with interface contents.
111 lines
3.9 KiB
Python
111 lines
3.9 KiB
Python
#
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# Copyright (c) 2022 Pim van Pelt
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import logging
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import validator.interface as interface
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import validator.lcp as lcp
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import validator.address as address
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class NullHandler(logging.Handler):
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def emit(self, record):
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pass
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def get_by_name(yaml, ifname):
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""" Return the BridgeDomain by name, if it exists. Return None,None otherwise. """
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try:
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if ifname in yaml['bridgedomains']:
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return ifname, yaml['bridgedomains'][ifname]
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except:
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pass
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return None, None
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def get_bridge_interfaces(yaml):
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""" Returns a list of all interfaces that are bridgedomain members """
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ret = []
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if not 'bridgedomains' in yaml:
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return ret
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for ifname, iface in yaml['bridgedomains'].items():
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if 'interfaces' in iface:
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ret.extend(iface['interfaces'])
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return ret
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def is_bridge_interface_unique(yaml, ifname):
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""" Returns True if this interface is referenced in bridgedomains zero or one times """
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ifs = get_bridge_interfaces(yaml)
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return ifs.count(ifname) < 2
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def is_bridge_interface(yaml, ifname):
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""" Returns True if this interface is a member of a BridgeDomain """
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return ifname in get_bridge_interfaces(yaml)
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def validate_bridgedomains(yaml):
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result = True
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msgs = []
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logger = logging.getLogger('vppcfg.validator')
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logger.addHandler(NullHandler())
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if not 'bridgedomains' in yaml:
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return result, msgs
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for ifname, iface in yaml['bridgedomains'].items():
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logger.debug("bridgedomain %s" % iface)
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bd_mtu = 1500
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if 'mtu' in iface:
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bd_mtu = iface['mtu']
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if 'addresses' in iface and not 'lcp' in iface:
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msgs.append("bridgedomain %s has an address but no LCP" % ifname)
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result = False
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if 'lcp' in iface and not lcp.is_unique(yaml, iface['lcp']):
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msgs.append("bridgedomain %s does not have a unique LCP name %s" % (ifname, iface['lcp']))
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result = False
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if 'addresses' in iface:
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for a in iface['addresses']:
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if not address.is_allowed(yaml, ifname, iface['addresses'], a):
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msgs.append("bridgedomain %s IP address %s conflicts with another" % (ifname, a))
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result = False
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if 'interfaces' in iface:
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for member in iface['interfaces']:
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if (None, None) == interface.get_by_name(yaml, member):
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msgs.append("bridgedomain %s member %s does not exist" % (ifname, member))
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result = False
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continue
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if not is_bridge_interface_unique(yaml, member):
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msgs.append("bridgedomain %s member %s is not unique" % (ifname, member))
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result = False
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if interface.has_lcp(yaml, member):
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msgs.append("bridgedomain %s member %s has an LCP" % (ifname, member))
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result = False
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if interface.has_address(yaml, member):
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msgs.append("bridgedomain %s member %s has an address" % (ifname, member))
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result = False
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member_mtu = interface.get_mtu(yaml, member)
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if member_mtu != bd_mtu:
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msgs.append("bridgedomain %s member %s has MTU %d, while bridge has %d" % (ifname, member, member_mtu, bd_mtu))
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result = False
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return result, msgs
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