26707bdbe7
We have git to track authorship, so let's not pad source files with it as well. A hacking check has been added for this. The value is N322. Change-Id: Iab0b64d417e0bb41a6b455e2ac377deee64ec3ee
65 lines
1.8 KiB
Python
65 lines
1.8 KiB
Python
# Copyright (C) 2013 Midokura PTE LTD
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron.common import constants
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def subnet_str(cidr):
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"""Convert the cidr string to x.x.x.x_y format
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:param cidr: CIDR in x.x.x.x/y format
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"""
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if cidr is None:
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return None
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return cidr.replace("/", "_")
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def net_addr(addr):
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"""Get network address prefix and length from a given address."""
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if addr is None:
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return (None, None)
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nw_addr, nw_len = addr.split('/')
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nw_len = int(nw_len)
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return nw_addr, nw_len
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def get_ethertype_value(ethertype):
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"""Convert string representation of ethertype to the numerical."""
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if ethertype is None:
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return None
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mapping = {
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'ipv4': 0x0800,
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'ipv6': 0x86DD,
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'arp': 0x806
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}
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return mapping.get(ethertype.lower())
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def get_protocol_value(protocol):
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"""Convert string representation of protocol to the numerical."""
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if protocol is None:
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return None
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if isinstance(protocol, int):
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return protocol
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mapping = {
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constants.PROTO_NAME_TCP: constants.PROTO_NUM_TCP,
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constants.PROTO_NAME_UDP: constants.PROTO_NUM_UDP,
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constants.PROTO_NAME_ICMP: constants.PROTO_NUM_ICMP
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}
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return mapping.get(protocol.lower())
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