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Add OF1.4 OFPMatchField support
This covers fields that are also present in OF1.3. In particular it does not cover PBB_UCA. I plan to address this in a subsequent patch. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
Simon Horman
FUJITA Tomonori
parent
4a52daee65
commit
ec18b3f0f1
@ -314,6 +314,9 @@ OFPXMC_NXM_1 = 0x0001 # Backward compatibility with NXM
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OFPXMC_OPENFLOW_BASIC = 0x8000 # Basic class for OpenFlow
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OFPXMC_EXPERIMENTER = 0xFFFF # Experimenter class
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# enum ofp_vlan_id
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OFPVID_PRESENT = 0x1000 # bit that indicate that a VLAN id is set.
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def _oxm_tlv_header(class_, field, hasmask, length):
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return (class_ << 16) | (field << 9) | (hasmask << 8) | length
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@ -568,6 +568,564 @@ class OFPPortDescPropEthernet(StringifyMixin):
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return ether
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class OFPMatchField(StringifyMixin):
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_FIELDS_HEADERS = {}
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@staticmethod
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def register_field_header(headers):
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def _register_field_header(cls):
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for header in headers:
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OFPMatchField._FIELDS_HEADERS[header] = cls
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return cls
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return _register_field_header
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def __init__(self, header):
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self.header = header
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self.n_bytes = ofproto.oxm_tlv_header_extract_length(header)
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self.length = 0
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@classmethod
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def cls_to_header(cls, cls_, hasmask):
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# XXX efficiency
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inv = dict((v, k) for k, v in cls._FIELDS_HEADERS.iteritems()
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if (((k >> 8) & 1) != 0) == hasmask)
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return inv[cls_]
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@staticmethod
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def make(header, value, mask=None):
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cls_ = OFPMatchField._FIELDS_HEADERS.get(header)
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return cls_(header, value, mask)
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@classmethod
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def parser(cls, buf, offset):
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(header,) = struct.unpack_from('!I', buf, offset)
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cls_ = OFPMatchField._FIELDS_HEADERS.get(header)
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if cls_:
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field = cls_.field_parser(header, buf, offset)
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else:
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field = OFPMatchField(header)
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field.length = (header & 0xff) + 4
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return field
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@classmethod
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def field_parser(cls, header, buf, offset):
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hasmask = (header >> 8) & 1
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mask = None
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if ofproto.oxm_tlv_header_extract_hasmask(header):
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pack_str = '!' + cls.pack_str[1:] * 2
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(value, mask) = struct.unpack_from(pack_str, buf, offset + 4)
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else:
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(value,) = struct.unpack_from(cls.pack_str, buf, offset + 4)
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return cls(header, value, mask)
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def serialize(self, buf, offset):
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if ofproto.oxm_tlv_header_extract_hasmask(self.header):
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self.put_w(buf, offset, self.value, self.mask)
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else:
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self.put(buf, offset, self.value)
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def _put_header(self, buf, offset):
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ofproto_parser.msg_pack_into('!I', buf, offset, self.header)
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self.length = 4
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def _put(self, buf, offset, value):
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ofproto_parser.msg_pack_into(self.pack_str, buf, offset, value)
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self.length += self.n_bytes
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def put_w(self, buf, offset, value, mask):
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self._put_header(buf, offset)
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self._put(buf, offset + self.length, value)
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self._put(buf, offset + self.length, mask)
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def put(self, buf, offset, value):
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self._put_header(buf, offset)
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self._put(buf, offset + self.length, value)
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def _putv6(self, buf, offset, value):
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ofproto_parser.msg_pack_into(self.pack_str, buf, offset,
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*value)
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self.length += self.n_bytes
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def putv6(self, buf, offset, value, mask=None):
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self._put_header(buf, offset)
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self._putv6(buf, offset + self.length, value)
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if mask and len(mask):
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self._putv6(buf, offset + self.length, mask)
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def oxm_len(self):
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return self.header & 0xff
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def to_jsondict(self):
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# remove some redundant attributes
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d = super(OFPMatchField, self).to_jsondict()
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v = d[self.__class__.__name__]
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del v['header']
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del v['length']
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del v['n_bytes']
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return d
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@classmethod
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def from_jsondict(cls, dict_):
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# just pass the dict around.
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# it will be converted by OFPMatch.__init__().
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return {cls.__name__: dict_}
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def stringify_attrs(self):
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f = super(OFPMatchField, self).stringify_attrs
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if not ofproto.oxm_tlv_header_extract_hasmask(self.header):
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# something like the following, but yield two values (k,v)
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# return itertools.ifilter(lambda k, v: k != 'mask', iter())
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def g():
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for k, v in f():
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if k != 'mask':
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yield (k, v)
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return g()
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else:
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return f()
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IN_PORT])
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class MTInPort(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTInPort, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_METADATA,
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ofproto.OXM_OF_METADATA_W])
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class MTMetadata(OFPMatchField):
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pack_str = '!Q'
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def __init__(self, header, value, mask=None):
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super(MTMetadata, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IN_PHY_PORT])
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class MTInPhyPort(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTInPhyPort, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ETH_DST,
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ofproto.OXM_OF_ETH_DST_W])
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class MTEthDst(OFPMatchField):
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pack_str = '!6s'
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def __init__(self, header, value, mask=None):
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super(MTEthDst, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ETH_SRC,
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ofproto.OXM_OF_ETH_SRC_W])
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class MTEthSrc(OFPMatchField):
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pack_str = '!6s'
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def __init__(self, header, value, mask=None):
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super(MTEthSrc, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ETH_TYPE])
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class MTEthType(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTEthType, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_VLAN_VID,
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ofproto.OXM_OF_VLAN_VID_W])
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class MTVlanVid(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTVlanVid, self).__init__(header)
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self.value = value
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self.mask = mask
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@classmethod
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def field_parser(cls, header, buf, offset):
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m = super(MTVlanVid, cls).field_parser(header, buf, offset)
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m.value &= ~ofproto.OFPVID_PRESENT
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return m
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def serialize(self, buf, offset):
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self.value |= ofproto.OFPVID_PRESENT
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super(MTVlanVid, self).serialize(buf, offset)
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@OFPMatchField.register_field_header([ofproto.OXM_OF_VLAN_PCP])
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class MTVlanPcp(OFPMatchField):
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pack_str = '!B'
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def __init__(self, header, value, mask=None):
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super(MTVlanPcp, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IP_DSCP])
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class MTIPDscp(OFPMatchField):
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pack_str = '!B'
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def __init__(self, header, value, mask=None):
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super(MTIPDscp, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IP_ECN])
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class MTIPECN(OFPMatchField):
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pack_str = '!B'
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def __init__(self, header, value, mask=None):
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super(MTIPECN, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IP_PROTO])
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class MTIPProto(OFPMatchField):
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pack_str = '!B'
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def __init__(self, header, value, mask=None):
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super(MTIPProto, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV4_SRC,
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ofproto.OXM_OF_IPV4_SRC_W])
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class MTIPV4Src(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTIPV4Src, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV4_DST,
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ofproto.OXM_OF_IPV4_DST_W])
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class MTIPV4Dst(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTIPV4Dst, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_TCP_SRC])
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class MTTCPSrc(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTTCPSrc, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_TCP_DST])
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class MTTCPDst(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTTCPDst, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_UDP_SRC])
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class MTUDPSrc(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTUDPSrc, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_UDP_DST])
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class MTUDPDst(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTUDPDst, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_SCTP_SRC])
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class MTSCTPSrc(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTSCTPSrc, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_SCTP_DST])
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class MTSCTPDst(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTSCTPDst, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ICMPV4_TYPE])
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class MTICMPV4Type(OFPMatchField):
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pack_str = '!B'
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def __init__(self, header, value, mask=None):
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super(MTICMPV4Type, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ICMPV4_CODE])
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class MTICMPV4Code(OFPMatchField):
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pack_str = '!B'
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def __init__(self, header, value, mask=None):
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super(MTICMPV4Code, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ARP_OP])
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class MTArpOp(OFPMatchField):
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pack_str = '!H'
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def __init__(self, header, value, mask=None):
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super(MTArpOp, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ARP_SPA,
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ofproto.OXM_OF_ARP_SPA_W])
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class MTArpSpa(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTArpSpa, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ARP_TPA,
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ofproto.OXM_OF_ARP_TPA_W])
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class MTArpTpa(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTArpTpa, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ARP_SHA,
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ofproto.OXM_OF_ARP_SHA_W])
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class MTArpSha(OFPMatchField):
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pack_str = '!6s'
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def __init__(self, header, value, mask=None):
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super(MTArpSha, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ARP_THA,
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ofproto.OXM_OF_ARP_THA_W])
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class MTArpTha(OFPMatchField):
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pack_str = '!6s'
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def __init__(self, header, value, mask=None):
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super(MTArpTha, self).__init__(header)
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self.value = value
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self.mask = mask
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class MTIPv6(StringifyMixin):
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@classmethod
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def field_parser(cls, header, buf, offset):
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if ofproto.oxm_tlv_header_extract_hasmask(header):
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pack_str = '!' + cls.pack_str[1:] * 2
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value = struct.unpack_from(pack_str, buf, offset + 4)
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return cls(header, list(value[:8]), list(value[8:]))
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else:
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value = struct.unpack_from(cls.pack_str, buf, offset + 4)
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return cls(header, list(value))
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def serialize(self, buf, offset):
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self.putv6(buf, offset, self.value, self.mask)
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_SRC,
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ofproto.OXM_OF_IPV6_SRC_W])
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class MTIPv6Src(MTIPv6, OFPMatchField):
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pack_str = '!8H'
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def __init__(self, header, value, mask=None):
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super(MTIPv6Src, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_DST,
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ofproto.OXM_OF_IPV6_DST_W])
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class MTIPv6Dst(MTIPv6, OFPMatchField):
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pack_str = '!8H'
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def __init__(self, header, value, mask=None):
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super(MTIPv6Dst, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_FLABEL,
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ofproto.OXM_OF_IPV6_FLABEL_W])
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class MTIPv6Flabel(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTIPv6Flabel, self).__init__(header)
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self.value = value
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self.mask = mask
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@OFPMatchField.register_field_header([ofproto.OXM_OF_MPLS_LABEL])
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class MTMplsLabel(OFPMatchField):
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pack_str = '!I'
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def __init__(self, header, value, mask=None):
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super(MTMplsLabel, self).__init__(header)
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self.value = value
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@OFPMatchField.register_field_header([ofproto.OXM_OF_ICMPV6_TYPE])
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class MTICMPV6Type(OFPMatchField):
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pack_str = '!B'
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|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTICMPV6Type, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_ICMPV6_CODE])
|
||||
class MTICMPV6Code(OFPMatchField):
|
||||
pack_str = '!B'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTICMPV6Code, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_ND_TARGET])
|
||||
class MTIPv6NdTarget(MTIPv6, OFPMatchField):
|
||||
pack_str = '!8H'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTIPv6NdTarget, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
def serialize(self, buf, offset):
|
||||
self.putv6(buf, offset, self.value)
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_ND_SLL])
|
||||
class MTIPv6NdSll(OFPMatchField):
|
||||
pack_str = '!6s'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTIPv6NdSll, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_ND_TLL])
|
||||
class MTIPv6NdTll(OFPMatchField):
|
||||
pack_str = '!6s'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTIPv6NdTll, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_MPLS_TC])
|
||||
class MTMplsTc(OFPMatchField):
|
||||
pack_str = '!B'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTMplsTc, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_MPLS_BOS])
|
||||
class MTMplsBos(OFPMatchField):
|
||||
pack_str = '!B'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTMplsBos, self).__init__(header)
|
||||
self.value = value
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_PBB_ISID,
|
||||
ofproto.OXM_OF_PBB_ISID_W])
|
||||
class MTPbbIsid(OFPMatchField):
|
||||
pack_str = '!3B'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTPbbIsid, self).__init__(header)
|
||||
self.value = value
|
||||
self.mask = mask
|
||||
|
||||
@classmethod
|
||||
def field_parser(cls, header, buf, offset):
|
||||
hasmask = (header >> 8) & 1
|
||||
mask = None
|
||||
if ofproto.oxm_tlv_header_extract_hasmask(header):
|
||||
pack_str = '!' + cls.pack_str[1:] * 2
|
||||
(v1, v2, v3, m1, m2, m3) = struct.unpack_from(pack_str, buf,
|
||||
offset + 4)
|
||||
value = v1 << 16 | v2 << 8 | v3
|
||||
mask = m1 << 16 | m2 << 8 | m3
|
||||
else:
|
||||
(v1, v2, v3,) = struct.unpack_from(cls.pack_str, buf, offset + 4)
|
||||
value = v1 << 16 | v2 << 8 | v3
|
||||
return cls(header, value, mask)
|
||||
|
||||
def _put(self, buf, offset, value):
|
||||
ofproto_parser.msg_pack_into(self.pack_str, buf, offset,
|
||||
(value >> 16) & 0xff,
|
||||
(value >> 8) & 0xff,
|
||||
(value >> 0) & 0xff)
|
||||
self.length += self.n_bytes
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_TUNNEL_ID,
|
||||
ofproto.OXM_OF_TUNNEL_ID_W])
|
||||
class MTTunnelId(OFPMatchField):
|
||||
pack_str = '!Q'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTTunnelId, self).__init__(header)
|
||||
self.value = value
|
||||
self.mask = mask
|
||||
|
||||
|
||||
@OFPMatchField.register_field_header([ofproto.OXM_OF_IPV6_EXTHDR,
|
||||
ofproto.OXM_OF_IPV6_EXTHDR_W])
|
||||
class MTIPv6ExtHdr(OFPMatchField):
|
||||
pack_str = '!H'
|
||||
|
||||
def __init__(self, header, value, mask=None):
|
||||
super(MTIPv6ExtHdr, self).__init__(header)
|
||||
self.value = value
|
||||
self.mask = mask
|
||||
|
||||
|
||||
@_register_parser
|
||||
@_set_msg_type(ofproto.OFPT_PACKET_IN)
|
||||
class OFPPacketIn(MsgBase):
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user