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.
67 lines
2.1 KiB
Python
67 lines
2.1 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 ipaddress
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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 VXLAN by name, if it exists. Return None otherwise. """
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try:
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if ifname in yaml['vxlan_tunnels']:
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return ifname, yaml['vxlan_tunnels'][ifname]
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except:
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pass
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return None
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def vni_unique(yaml, vni):
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""" Return True if the VNI is unique amongst all VXLANs """
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if not 'vxlan_tunnels' in yaml:
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return True
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ncount = 0
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for ifname, iface in yaml['vxlan_tunnels'].items():
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if iface['vni'] == vni:
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ncount = ncount + 1
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return ncount < 2
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def validate_vxlan_tunnels(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 'vxlan_tunnels' in yaml:
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return result, msgs
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for ifname, iface in yaml['vxlan_tunnels'].items():
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logger.debug("vxlan_tunnel %s: %s" % (ifname, iface))
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vni = iface['vni']
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if not vni_unique(yaml, vni):
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msgs.append("vxlan_tunnel %s VNI %d is not unique" % (ifname, vni))
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result = False
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local = ipaddress.ip_address(iface['local'])
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remote = ipaddress.ip_address(iface['remote'])
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if local.version != remote.version:
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msgs.append("vxlan_tunnel %s local and remote are not the same address family" % (ifname))
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result = False
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return result, msgs
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