2a7f243425
The spec allows zero-length data. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Reviewed-by: Simon Horman <horms@verge.net.au>
2011 lines
71 KiB
Python
2011 lines
71 KiB
Python
# Copyright (C) 2011, 2012 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2011, 2012 Isaku Yamahata <yamahata at valinux co jp>
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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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#
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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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# 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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import collections
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import struct
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import binascii
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from ofproto_parser import MsgBase, msg_pack_into, msg_str_attr
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from ryu.lib import mac
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from . import ofproto_parser
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from . import ofproto_v1_0
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from . import nx_match
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import logging
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LOG = logging.getLogger('ryu.ofproto.ofproto_v1_0_parser')
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_MSG_PARSERS = {}
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def _set_msg_type(msg_type):
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'''Annotate corresponding OFP message type'''
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def _set_cls_msg_type(cls):
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cls.cls_msg_type = msg_type
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return cls
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return _set_cls_msg_type
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def _register_parser(cls):
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'''class decorator to register msg parser'''
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assert cls.cls_msg_type is not None
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assert cls.cls_msg_type not in _MSG_PARSERS
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_MSG_PARSERS[cls.cls_msg_type] = cls.parser
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return cls
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@ofproto_parser.register_msg_parser(ofproto_v1_0.OFP_VERSION)
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def msg_parser(datapath, version, msg_type, msg_len, xid, buf):
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parser = _MSG_PARSERS.get(msg_type)
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return parser(datapath, version, msg_type, msg_len, xid, buf)
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# OFP_MSG_REPLY = {
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# OFPFeaturesRequest: OFPSwitchFeatures,
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# OFPBarrierRequest: OFPBarrierReply,
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# OFPQueueGetConfigRequest: OFPQueueGetConfigReply,
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#
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# # ofp_stats_request -> ofp_stats_reply
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# OFPDescStatsRequest: OFPDescStatsReply,
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# OFPFlowStatsRequest: OFPFlowStatsReply,
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# OFPAggregateStatsRequest: OFPAggregateStatsReply,
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# OFPTableStatsRequest: OFPTableStatsReply,
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# OFPPortStatsRequest: OFPPortStatsReply,
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# OFPQueueStatsRequest: OFPQueueStatsReply,
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# OFPVendorStatsRequest: OFPVendorStatsReply,
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# }
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def _set_msg_reply(msg_reply):
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'''Annotate OFP reply message class'''
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def _set_cls_msg_reply(cls):
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cls.cls_msg_reply = msg_reply
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return cls
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return _set_cls_msg_reply
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#
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# common structures
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#
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class OFPPhyPort(collections.namedtuple('OFPPhyPort', (
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'port_no', 'hw_addr', 'name', 'config', 'state', 'curr', 'advertised',
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'supported', 'peer'))):
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@classmethod
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def parser(cls, buf, offset):
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port = struct.unpack_from(ofproto_v1_0.OFP_PHY_PORT_PACK_STR,
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buf, offset)
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return cls(*port)
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class OFPMatch(collections.namedtuple('OFPMatchBase', (
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'wildcards', 'in_port', 'dl_src', 'dl_dst', 'dl_vlan',
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'dl_vlan_pcp', 'dl_type', 'nw_tos', 'nw_proto',
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'nw_src', 'nw_dst', 'tp_src', 'tp_dst'))):
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def __new__(cls, *args):
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# for convenience when dl_src/dl_dst are wildcard
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if args[2] != 0 and args[3] != 0:
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return super(cls, OFPMatch).__new__(cls, *args)
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tmp = list(args)
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if tmp[2] == 0:
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tmp[2] = mac.DONTCARE
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if tmp[3] == 0:
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tmp[3] = mac.DONTCARE
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return super(cls, OFPMatch).__new__(cls, *tmp)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_MATCH_PACK_STR, buf, offset, *self)
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@classmethod
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def parse(cls, buf, offset):
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match = struct.unpack_from(ofproto_v1_0.OFP_MATCH_PACK_STR,
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buf, offset)
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return cls(*match)
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class OFPActionHeader(object):
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def __init__(self, type_, len_):
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self.type = type_
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self.len = len_
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_HEADER_PACK_STR,
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buf, offset, self.type, self.len)
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class OFPAction(OFPActionHeader):
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_ACTION_TYPES = {}
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@staticmethod
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def register_action_type(type_, len_):
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def _register_action_type(cls):
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cls.cls_action_type = type_
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cls.cls_action_len = len_
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OFPAction._ACTION_TYPES[cls.cls_action_type] = cls
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return cls
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return _register_action_type
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def __init__(self):
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cls = self.__class__
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super(OFPAction, self).__init__(cls.cls_action_type,
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cls.cls_action_len)
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@classmethod
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def parser(cls, buf, offset):
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type_, len_ = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_HEADER_PACK_STR, buf, offset)
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cls_ = cls._ACTION_TYPES.get(type_)
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assert cls_ is not None
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return cls_.parser(buf, offset)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_OUTPUT,
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ofproto_v1_0.OFP_ACTION_OUTPUT_SIZE)
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class OFPActionOutput(OFPAction):
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def __init__(self, port, max_len=0):
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super(OFPActionOutput, self).__init__()
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self.port = port
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self.max_len = max_len
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, port, max_len = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_OUTPUT_PACK_STR, buf, offset)
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assert type_ == ofproto_v1_0.OFPAT_OUTPUT
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assert len_ == ofproto_v1_0.OFP_ACTION_OUTPUT_SIZE
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return cls(port, max_len)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_OUTPUT_PACK_STR, buf,
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offset, self.type, self.len, self.port, self.max_len)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_VLAN_VID,
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ofproto_v1_0.OFP_ACTION_VLAN_VID_SIZE)
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class OFPActionVlanVid(OFPAction):
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def __init__(self, vlan_vid):
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super(OFPActionVlanVid, self).__init__()
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self.vlan_vid = vlan_vid
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, vlan_vid = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_VLAN_VID_PACK_STR, buf, offset)
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assert type_ == ofproto_v1_0.OFPAT_SET_VLAN_VID
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assert len_ == ofproto_v1_0.OFP_ACTION_VLAN_VID_SIZE
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return cls(vlan_vid)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_VLAN_VID_PACK_STR,
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buf, offset, self.type, self.len, self.vlan_vid)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_VLAN_PCP,
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ofproto_v1_0.OFP_ACTION_VLAN_PCP_SIZE)
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class OFPActionVlanPcp(OFPAction):
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def __init__(self, vlan_pcp):
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super(OFPActionVlanPcp, self).__init__()
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self.vlan_pcp = vlan_pcp
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, vlan_pcp = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_VLAN_PCP_PACK_STR, buf, offset)
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assert type_ == ofproto_v1_0.OFPAT_SET_VLAN_PCP
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assert len_ == ofproto_v1_0.OFP_ACTION_VLAN_PCP_SIZE
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return cls(vlan_pcp)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_VLAN_PCP_PACK_STR,
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buf, offset, self.type, self.len, self.vlan_pcp)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_STRIP_VLAN,
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ofproto_v1_0.OFP_ACTION_HEADER_SIZE)
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class OFPActionStripVlan(OFPAction):
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def __init__(self):
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super(OFPActionStripVlan, self).__init__()
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@classmethod
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def parser(cls, buf, offset):
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type_, len_ = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_HEADER_PACK_STR, buf, offset)
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assert type_ == ofproto_v1_0.OFPAT_STRIP_VLAN
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assert len_ == ofproto_v1_0.OFP_ACTION_HEADER_SIZE
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return cls()
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class OFPActionDlAddr(OFPAction):
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def __init__(self, dl_addr):
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super(OFPActionDlAddr, self).__init__()
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self.dl_addr = dl_addr
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, dl_addr = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_DL_ADDR_PACK_STR, buf, offset)
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assert type_ in (ofproto_v1_0.OFPAT_SET_DL_SRC,
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ofproto_v1_0.OFPAT_SET_DL_DST)
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assert len_ == ofproto_v1_0.OFP_ACTION_DL_ADDR_SIZE
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return cls(dl_addr)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_DL_ADDR_PACK_STR,
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buf, offset, self.type, self.len, self.dl_addr)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_DL_SRC,
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ofproto_v1_0.OFP_ACTION_DL_ADDR_SIZE)
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class OFPActionSetDlSrc(OFPActionDlAddr):
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def __init__(self, dl_addr):
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super(OFPActionSetDlSrc, self).__init__(dl_addr)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_DL_DST,
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ofproto_v1_0.OFP_ACTION_DL_ADDR_SIZE)
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class OFPActionSetDlDst(OFPActionDlAddr):
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def __init__(self, dl_addr):
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super(OFPActionSetDlDst, self).__init__(dl_addr)
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class OFPActionNwAddr(OFPAction):
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def __init__(self, nw_addr):
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super(OFPActionNwAddr, self).__init__()
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self.nw_addr = nw_addr
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, nw_addr = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_NW_ADDR_PACK_STR, buf, offset)
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assert type_ in (ofproto_v1_0.OFPAT_SET_NW_SRC,
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ofproto_v1_0.OFPAT_SET_NW_DST)
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assert len_ == ofproto_v1_0.OFP_ACTION_NW_ADDR_SIZE
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return cls(nw_addr)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_NW_ADDR_PACK_STR,
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buf, offset, self.type, self.len, self.nw_addr)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_NW_SRC,
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ofproto_v1_0.OFP_ACTION_NW_ADDR_SIZE)
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class OFPActionSetNwSrc(OFPActionNwAddr):
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def __init__(self, nw_addr):
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super(OFPActionSetNwSrc, self).__init__(nw_addr)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_NW_DST,
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ofproto_v1_0.OFP_ACTION_NW_ADDR_SIZE)
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class OFPActionSetNwDst(OFPActionNwAddr):
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def __init__(self, nw_addr):
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super(OFPActionSetNwDst, self).__init__(nw_addr)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_NW_TOS,
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ofproto_v1_0.OFP_ACTION_NW_TOS_SIZE)
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class OFPActionSetNwTos(OFPAction):
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def __init__(self, tos):
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super(OFPActionSetNwTos, self).__init__()
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self.tos = tos
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, tos = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_NW_TOS_PACK_STR, buf, offset)
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assert type_ == ofproto_v1_0.OFPAT_SET_NW_TOS
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assert len_ == ofproto_v1_0.OFP_ACTION_NW_TOS_SIZE
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return cls(tos)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_NW_TOS_PACK_STR,
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buf, offset, self.type, self.len, self.tos)
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class OFPActionTpPort(OFPAction):
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def __init__(self, tp):
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super(OFPActionTpPort, self).__init__()
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self.tp = tp
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, tp = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_TP_PORT_PACK_STR, buf, offset)
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assert type_ in (ofproto_v1_0.OFPAT_SET_TP_SRC,
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ofproto_v1_0.OFPAT_SET_TP_DST)
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assert len_ == ofproto_v1_0.OFP_ACTION_TP_PORT_SIZE
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return cls(tp)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_TP_PORT_PACK_STR,
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buf, offset, self.type, self.len, self.tp)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_TP_SRC,
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ofproto_v1_0.OFP_ACTION_TP_PORT_SIZE)
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class OFPActionSetTpSrc(OFPActionTpPort):
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def __init__(self, tp):
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super(OFPActionSetTpSrc, self).__init__(tp)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_SET_TP_DST,
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ofproto_v1_0.OFP_ACTION_TP_PORT_SIZE)
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class OFPActionSetTpDst(OFPActionTpPort):
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def __init__(self, tp):
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super(OFPActionSetTpDst, self).__init__(tp)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_ENQUEUE,
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ofproto_v1_0.OFP_ACTION_ENQUEUE_SIZE)
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class OFPActionEnqueue(OFPAction):
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def __init__(self, port, queue_id):
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super(OFPActionEnqueue, self).__init__()
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self.port = port
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self.queue_id = queue_id
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, port, queue_id = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_ENQUEUE_PACK_STR, buf, offset)
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assert type_ == ofproto_v1_0.OFPAT_ENQUEUE
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assert len_ == ofproto_v1_0.OFP_ACTION_ENQUEUE_SIZE
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return cls(port, queue_id)
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_ENQUEUE_PACK_STR, buf, offset,
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self.type, self.len, self.port, self.queue_id)
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@OFPAction.register_action_type(ofproto_v1_0.OFPAT_VENDOR, 0)
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class OFPActionVendor(OFPAction):
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_ACTION_VENDORS = {}
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@staticmethod
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def register_action_vendor(vendor):
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def _register_action_vendor(cls):
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cls.cls_vendor = vendor
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OFPActionVendor._ACTION_VENDORS[cls.cls_vendor] = cls
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return cls
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return _register_action_vendor
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def __init__(self, vendor):
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super(OFPActionVendor, self).__init__()
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self.vendor = vendor
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, vendor = struct.unpack_from(
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ofproto_v1_0.OFP_ACTION_VENDOR_HEADER_PACK_STR, buf, offset)
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cls_ = cls._ACTION_VENDORS.get(vendor)
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return cls_.parser(buf, offset)
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@OFPActionVendor.register_action_vendor(ofproto_v1_0.NX_VENDOR_ID)
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class NXActionHeader(object):
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_NX_ACTION_SUBTYPES = {}
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@staticmethod
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def register_nx_action_subtype(subtype):
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def _register_nx_action_subtype(cls):
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cls.cls_subtype = subtype
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NXActionHeader._NX_ACTION_SUBTYPES[cls.cls_subtype] = cls
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return cls
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return _register_nx_action_subtype
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def __init__(self, subtype_, len_):
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self.type = ofproto_v1_0.OFPAT_VENDOR
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self.len = len_
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self.vendor = ofproto_v1_0.NX_VENDOR_ID
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self.subtype = subtype_
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def serialise(self, buf, offset):
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msg_pack_into(ofproto_v1_0.OFP_ACTION_HEADER_PACK_STR,
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buf, offset, self.type, self.len)
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@classmethod
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def parser(cls, buf, offset):
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type_, len_, vendor, subtype = struct.unpack_from(
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ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset)
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cls_ = cls._NX_ACTION_SUBTYPES.get(subtype)
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return cls_.parser(buf, offset)
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class NXActionResubmitBase(NXActionHeader):
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def __init__(self, subtype, in_port, table):
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assert subtype in (ofproto_v1_0.NXAST_RESUBMIT,
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ofproto_v1_0.NXAST_RESUBMIT_TABLE)
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super(NXActionResubmitBase, self).__init__(
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subtype, ofproto_v1_0.NX_ACTION_RESUBMIT_SIZE)
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self.in_port = in_port
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self.table = table
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def serialize(self, buf, offset):
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msg_pack_into(ofproto_v1_0.NX_ACTION_RESUBMIT_PACK_STR, buf, offset,
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self.type, self.len, self.vendor, self.subtype,
|
|
self.in_port, self.table)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_RESUBMIT)
|
|
class NXActionResubmit(NXActionResubmitBase):
|
|
def __init__(self, in_port=ofproto_v1_0.OFPP_IN_PORT):
|
|
super(NXActionResubmit, self).__init__(
|
|
ofproto_v1_0.NXAST_RESUBMIT, in_port, 0)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
type_, len_, vendor, subtype, in_port, table = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_RESUBMIT_PACK_STR, buf, offset)
|
|
return cls(in_port)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_RESUBMIT_TABLE)
|
|
class NXActionResubmitTable(NXActionResubmitBase):
|
|
def __init__(self, in_port=ofproto_v1_0.OFPP_IN_PORT, table=0xff):
|
|
super(NXActionResubmitTable, self).__init__(
|
|
ofproto_v1_0.NXAST_RESUBMIT_TABLE, in_port, table)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
type_, len_, vendor, subtype, in_port, table = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_RESUBMIT_PACK_STR, buf, offset)
|
|
return cls(in_port, table)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_SET_TUNNEL)
|
|
class NXActionSetTunnel(NXActionHeader):
|
|
def __init__(self, tun_id_):
|
|
self.tun_id = tun_id_
|
|
super(NXActionSetTunnel, self).__init__(
|
|
ofproto_v1_0.NXAST_SET_TUNNEL,
|
|
ofproto_v1_0.NX_ACTION_SET_TUNNEL_SIZE)
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_SET_TUNNEL_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor, self.subtype,
|
|
self.tun_id)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
type_, len_, vendor, subtype, tun_id = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_SET_TUNNEL_PACK_STR, buf, offset)
|
|
return cls(tun_id)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_SET_QUEUE)
|
|
class NXActionSetQueue(NXActionHeader):
|
|
def __init__(self, queue_id):
|
|
super(NXActionSetQueue, self).__init__(
|
|
ofproto_v1_0.NXAST_SET_QUEUE,
|
|
ofproto_v1_0.NX_ACTION_SET_QUEUE_SIZE)
|
|
self.queue_id = queue_id
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_SET_QUEUE_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor,
|
|
self.subtype, self.queue_id)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, queue_id) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_SET_QUEUE_PACK_STR, buf, offset)
|
|
return cls(queue_id)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_POP_QUEUE)
|
|
class NXActionPopQueue(NXActionHeader):
|
|
def __init__(self):
|
|
super(NXActionPopQueue, self).__init__(
|
|
ofproto_v1_0.NXAST_POP_QUEUE,
|
|
ofproto_v1_0.NX_ACTION_POP_QUEUE_SIZE)
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_POP_QUEUE_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor,
|
|
self.subtype)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_POP_QUEUE_PACK_STR, buf, offset)
|
|
return cls()
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_REG_MOVE)
|
|
class NXActionRegMove(NXActionHeader):
|
|
def __init__(self, n_bits, src_ofs, dst_ofs, src, dst):
|
|
super(NXActionRegMove, self).__init__(
|
|
ofproto_v1_0.NXAST_REG_MOVE,
|
|
ofproto_v1_0.NX_ACTION_REG_MOVE_SIZE)
|
|
self.n_bits = n_bits
|
|
self.src_ofs = src_ofs
|
|
self.dst_ofs = dst_ofs
|
|
self.src = src
|
|
self.dst = dst
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_REG_MOVE_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor,
|
|
self.subtype, self.n_bits, self.src_ofs, self.dst_ofs,
|
|
self.src, self.dst)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, n_bits, src_ofs, dst_ofs,
|
|
src, dst) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_REG_MOVE_PACK_STR, buf, offset)
|
|
return cls(n_bits, src_ofs, dst_ofs, src, dst)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_REG_LOAD)
|
|
class NXActionRegLoad(NXActionHeader):
|
|
def __init__(self, ofs_nbits, dst, value):
|
|
super(NXActionRegLoad, self).__init__(
|
|
ofproto_v1_0.NXAST_REG_LOAD,
|
|
ofproto_v1_0.NX_ACTION_REG_LOAD_SIZE)
|
|
self.ofs_nbits = ofs_nbits
|
|
self.dst = dst
|
|
self.value = value
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_REG_LOAD_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor,
|
|
self.subtype, self.ofs_nbits, self.dst, self.value)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, ofs_nbits, dst,
|
|
value) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_REG_LOAD_PACK_STR, buf, offset)
|
|
return cls(ofs_nbits, dst, value)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_SET_TUNNEL64)
|
|
class NXActionSetTunnel64(NXActionHeader):
|
|
def __init__(self, tun_id_):
|
|
self.tun_id = tun_id_
|
|
super(NXActionSetTunnel64, self).__init__(
|
|
ofproto_v1_0.NXAST_SET_TUNNEL64,
|
|
ofproto_v1_0.NX_ACTION_SET_TUNNEL64_SIZE)
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_SET_TUNNEL64_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor, self.subtype,
|
|
self.tun_id)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
type_, len_, vendor, subtype, tun_id = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_SET_TUNNEL64_PACK_STR, buf, offset)
|
|
return cls(tun_id)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_MULTIPATH)
|
|
class NXActionMultipath(NXActionHeader):
|
|
def __init__(self, fields, basis, algorithm, max_link, arg,
|
|
ofs_nbits, dst):
|
|
super(NXActionMultipath, self).__init__(
|
|
ofproto_v1_0.NXAST_MULTIPATH,
|
|
ofproto_v1_0.NX_ACTION_MULTIPATH_SIZE)
|
|
self.fields = fields
|
|
self.basis = basis
|
|
self.algorithm = algorithm
|
|
self.max_link = max_link
|
|
self.arg = arg
|
|
self.ofs_nbits = ofs_nbits
|
|
self.dst = dst
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_MULTIPATH_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor, self.subtype,
|
|
self.fields, self.basis, self.algorithm, self.max_link,
|
|
self.arg, self.ofs_nbits, self.dst)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, fields, basis, algorithm,
|
|
max_link, arg, ofs_nbits, dst) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_MULTIPATH_PACK_STR, buf, offset)
|
|
return cls(fields, basis, algorithm, max_link, arg, ofs_nbits,
|
|
dst)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_NOTE)
|
|
class NXActionNote(NXActionHeader):
|
|
def __init__(self, note):
|
|
# should check here if the note is valid (only hex values)
|
|
pad = (len(note) + 10) % 8
|
|
if pad:
|
|
note += [0x0 for i in range(8 - pad)]
|
|
self.note = note
|
|
_len = len(note) + 10
|
|
super(NXActionNote, self).__init__(
|
|
ofproto_v1_0.NXAST_NOTE, _len)
|
|
|
|
def serialize(self, buf, offset):
|
|
note = self.note
|
|
extra = None
|
|
extra_len = len(self.note) - 6
|
|
if extra_len > 0:
|
|
extra = note[6:]
|
|
note = note[0:6]
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_NOTE_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor, self.subtype,
|
|
*note)
|
|
if extra_len > 0:
|
|
msg_pack_into('B' * extra_len, buf,
|
|
offset + ofproto_v1_0.NX_ACTION_NOTE_SIZE,
|
|
*extra)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
note = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_NOTE_PACK_STR, buf, offset)
|
|
(type_, len_, vendor, subtype) = note[0:4]
|
|
note = [i for i in note[4:]]
|
|
if len_ > ofproto_v1_0.NX_ACTION_NOTE_SIZE:
|
|
note_start = offset + ofproto_v1_0.NX_ACTION_NOTE_SIZE
|
|
note_end = note_start + len_ - ofproto_v1_0.NX_ACTION_NOTE_SIZE
|
|
note += [int(binascii.b2a_hex(i), 16) for i
|
|
in buf[note_start:note_end]]
|
|
return cls(note)
|
|
|
|
|
|
class NXActionBundleBase(NXActionHeader):
|
|
def __init__(self, subtype, algorithm, fields, basis, slave_type, n_slaves,
|
|
ofs_nbits, dst, slaves):
|
|
_len = ofproto_v1_0.NX_ACTION_BUNDLE_SIZE + len(slaves) * 2
|
|
_len += (_len % 8)
|
|
super(NXActionBundleBase, self).__init__(subtype, _len)
|
|
|
|
self.algorithm = algorithm
|
|
self.fields = fields
|
|
self.basis = basis
|
|
self.slave_type = slave_type
|
|
self.n_slaves = n_slaves
|
|
self.ofs_nbits = ofs_nbits
|
|
self.dst = dst
|
|
self.slaves = slaves
|
|
|
|
def serialize(self, buf, offset):
|
|
slave_offset = offset + ofproto_v1_0.NX_ACTION_BUNDLE_SIZE
|
|
|
|
for s in self.slaves:
|
|
msg_pack_into('!H', buf, slave_offset, s)
|
|
slave_offset += 2
|
|
|
|
pad_len = (len(self.slaves) * 2 +
|
|
ofproto_v1_0.NX_ACTION_BUNDLE_SIZE) % 8
|
|
|
|
if pad_len != 0:
|
|
msg_pack_into('%dx' % pad_len, buf, slave_offset)
|
|
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_BUNDLE_PACK_STR, buf,
|
|
offset, self.type, self.len, self.vendor, self.subtype,
|
|
self.algorithm, self.fields, self.basis,
|
|
self.slave_type, self.n_slaves,
|
|
self.ofs_nbits, self.dst)
|
|
|
|
@classmethod
|
|
def parser(cls, action_cls, buf, offset):
|
|
(type_, len_, vendor, subtype, algorithm, fields, basis,
|
|
slave_type, n_slaves, ofs_nbits, dst) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_BUNDLE_PACK_STR, buf, offset)
|
|
slave_offset = offset + ofproto_v1_0.NX_ACTION_BUNDLE_SIZE
|
|
|
|
slaves = []
|
|
for i in range(0, n_slaves):
|
|
s = struct.unpack_from('!H', buf, slave_offset)
|
|
slaves.append(s[0])
|
|
slave_offset += 2
|
|
|
|
return action_cls(algorithm, fields, basis, slave_type,
|
|
n_slaves, ofs_nbits, dst, slaves)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_BUNDLE)
|
|
class NXActionBundle(NXActionBundleBase):
|
|
def __init__(self, algorithm, fields, basis, slave_type, n_slaves,
|
|
ofs_nbits, dst, slaves):
|
|
super(NXActionBundle, self).__init__(
|
|
ofproto_v1_0.NXAST_BUNDLE,
|
|
algorithm, fields, basis, slave_type, n_slaves,
|
|
ofs_nbits, dst, slaves)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
return NXActionBundleBase.parser(NXActionBundle, buf, offset)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_BUNDLE_LOAD)
|
|
class NXActionBundleLoad(NXActionBundleBase):
|
|
def __init__(self, algorithm, fields, basis, slave_type, n_slaves,
|
|
ofs_nbits, dst, slaves):
|
|
super(NXActionBundleLoad, self).__init__(
|
|
ofproto_v1_0.NXAST_BUNDLE_LOAD,
|
|
algorithm, fields, basis, slave_type, n_slaves,
|
|
ofs_nbits, dst, slaves)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
return NXActionBundleBase.parser(NXActionBundleLoad, buf, offset)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_AUTOPATH)
|
|
class NXActionAutopath(NXActionHeader):
|
|
def __init__(self, ofs_nbits, dst, id_):
|
|
super(NXActionAutopath, self).__init__(
|
|
ofproto_v1_0.NXAST_AUTOPATH,
|
|
ofproto_v1_0.NX_ACTION_AUTOPATH_SIZE)
|
|
self.ofs_nbits = ofs_nbits
|
|
self.dst = dst
|
|
self.id = id_
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_AUTOPATH_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype,
|
|
self.ofs_nbits, self.dst, self.id)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, ofs_nbits, dst,
|
|
id_) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_AUTOPATH_PACK_STR, buf, offset)
|
|
return cls(ofs_nbits, dst, id_)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_OUTPUT_REG)
|
|
class NXActionOutputReg(NXActionHeader):
|
|
def __init__(self, ofs_nbits, src, max_len):
|
|
super(NXActionOutputReg, self).__init__(
|
|
ofproto_v1_0.NXAST_OUTPUT_REG,
|
|
ofproto_v1_0.NX_ACTION_OUTPUT_REG_SIZE)
|
|
self.ofs_nbits = ofs_nbits
|
|
self.src = src
|
|
self.max_len = max_len
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_OUTPUT_REG_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype,
|
|
self.ofs_nbits, self.src, self.max_len)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, ofs_nbits, src,
|
|
max_len) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_OUTPUT_REG_PACK_STR, buf, offset)
|
|
return cls(ofs_nbits, src, max_len)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_EXIT)
|
|
class NXActionExit(NXActionHeader):
|
|
def __init__(self):
|
|
super(NXActionExit, self).__init__(
|
|
ofproto_v1_0.NXAST_EXIT,
|
|
ofproto_v1_0.NX_ACTION_HEADER_SIZE)
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset)
|
|
return cls()
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_DEC_TTL)
|
|
class NXActionDecTtl(NXActionHeader):
|
|
def __init__(self):
|
|
super(NXActionDecTtl, self).__init__(
|
|
ofproto_v1_0.NXAST_DEC_TTL,
|
|
ofproto_v1_0.NX_ACTION_HEADER_SIZE)
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_HEADER_PACK_STR, buf, offset)
|
|
return cls()
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_LEARN)
|
|
class NXActionLearn(NXActionHeader):
|
|
def __init__(self, idle_timeout, hard_timeout, priority, cookie, flags,
|
|
table_id, fin_idle_timeout, fin_hard_timeout, spec):
|
|
len_ = len(spec) + ofproto_v1_0.NX_ACTION_LEARN_SIZE
|
|
pad_len = 8 - (len_ % 8)
|
|
|
|
super(NXActionLearn, self).__init__(
|
|
ofproto_v1_0.NXAST_LEARN, len_ + pad_len)
|
|
self.idle_timeout = idle_timeout
|
|
self.hard_timeout = hard_timeout
|
|
self.priority = priority
|
|
self.cookie = cookie
|
|
self.flags = flags
|
|
self.table_id = table_id
|
|
self.fin_idle_timeout = fin_idle_timeout
|
|
self.fin_hard_timeout = fin_hard_timeout
|
|
self.spec = spec + bytearray('\x00' * pad_len)
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_LEARN_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype,
|
|
self.idle_timeout, self.hard_timeout, self.priority,
|
|
self.cookie, self.flags, self.table_id,
|
|
self.fin_idle_timeout, self.fin_hard_timeout)
|
|
buf += self.spec
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, idle_timeout, hard_timeout, priority,
|
|
cookie, flags, table_id, fin_idle_timeout,
|
|
fin_hard_timeout) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_LEARN_PACK_STR, buf, offset)
|
|
spec = buf[offset + ofproto_v1_0.NX_ACTION_LEARN_SIZE:]
|
|
return cls(idle_timeout, hard_timeout, priority,
|
|
cookie, flags, table_id, fin_idle_timeout,
|
|
fin_hard_timeout, spec)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_CONTROLLER)
|
|
class NXActionController(NXActionHeader):
|
|
def __init__(self, max_len, controller_id, reason):
|
|
super(NXActionController, self).__init__(
|
|
ofproto_v1_0.NXAST_CONTROLLER,
|
|
ofproto_v1_0.NX_ACTION_CONTROLLER_SIZE)
|
|
self.max_len = max_len
|
|
self.controller_id = controller_id
|
|
self.reason = reason
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_CONTROLLER_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype,
|
|
self.max_len, self.controller_id, self.reason, 0)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, max_len, controller_id, reason,
|
|
_zero) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_CONTROLLER_PACK_STR, buf, offset)
|
|
return cls(max_len, controller_id, reason)
|
|
|
|
|
|
@NXActionHeader.register_nx_action_subtype(ofproto_v1_0.NXAST_FIN_TIMEOUT)
|
|
class NXActionFinTimeout(NXActionHeader):
|
|
def __init__(self, fin_idle_timeout, fin_hard_timeout):
|
|
super(NXActionFinTimeout, self).__init__(
|
|
ofproto_v1_0.NXAST_FIN_TIMEOUT,
|
|
ofproto_v1_0.NX_ACTION_FIN_TIMEOUT_SIZE)
|
|
self.fin_idle_timeout = fin_idle_timeout
|
|
self.fin_hard_timeout = fin_hard_timeout
|
|
|
|
def serialize(self, buf, offset):
|
|
msg_pack_into(ofproto_v1_0.NX_ACTION_FIN_TIMEOUT_PACK_STR, buf, offset,
|
|
self.type, self.len, self.vendor, self.subtype,
|
|
self.fin_idle_timeout, self.fin_hard_timeout)
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(type_, len_, vendor, subtype, fin_idle_timeout,
|
|
fin_hard_timeout) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ACTION_FIN_TIMEOUT_PACK_STR, buf, offset)
|
|
return cls(fin_idle_timeout, fin_hard_timeout)
|
|
|
|
|
|
class OFPDescStats(collections.namedtuple('OFPDescStats',
|
|
('mfr_desc', 'hw_desc', 'sw_desc', 'serial_num', 'dp_desc'))):
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
desc = struct.unpack_from(ofproto_v1_0.OFP_DESC_STATS_PACK_STR,
|
|
buf, offset)
|
|
stats = cls(*desc)
|
|
stats.length = ofproto_v1_0.OFP_DESC_STATS_SIZE
|
|
return stats
|
|
|
|
|
|
class OFPFlowStats(object):
|
|
def __init__(self):
|
|
super(OFPFlowStats, self).__init__()
|
|
self.length = None
|
|
self.table_id = None
|
|
self.match = None
|
|
self.duration_sec = None
|
|
self.duration_nsec = None
|
|
self.priority = None
|
|
self.idle_timeout = None
|
|
self.hard_timeout = None
|
|
self.cookie = None
|
|
self.packet_count = None
|
|
self.byte_count = None
|
|
self.actions = None
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
flow_stats = cls()
|
|
|
|
flow_stats.length, flow_stats.table_id = struct.unpack_from(
|
|
ofproto_v1_0.OFP_FLOW_STATS_0_PACK_STR, buf, offset)
|
|
offset += ofproto_v1_0.OFP_FLOW_STATS_0_SIZE
|
|
|
|
flow_stats.match = OFPMatch.parse(buf, offset)
|
|
offset += ofproto_v1_0.OFP_MATCH_SIZE
|
|
|
|
(flow_stats.duration_sec,
|
|
flow_stats.duration_nsec,
|
|
flow_stats.priority,
|
|
flow_stats.idle_timeout,
|
|
flow_stats.hard_timeout,
|
|
flow_stats.cookie,
|
|
flow_stats.packet_count,
|
|
flow_stats.byte_count) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_FLOW_STATS_1_PACK_STR, buf, offset)
|
|
offset += ofproto_v1_0.OFP_FLOW_STATS_1_SIZE
|
|
|
|
flow_stats.actions = []
|
|
length = ofproto_v1_0.OFP_FLOW_STATS_SIZE
|
|
while length < flow_stats.length:
|
|
action = OFPAction.parser(buf, offset)
|
|
flow_stats.actions.append(action)
|
|
|
|
offset += action.len
|
|
length += action.len
|
|
|
|
return flow_stats
|
|
|
|
|
|
class OFPAggregateStats(collections.namedtuple('OFPAggregateStats',
|
|
('packet_count', 'byte_count', 'flow_count'))):
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
agg = struct.unpack_from(
|
|
ofproto_v1_0.OFP_AGGREGATE_STATS_REPLY_PACK_STR, buf, offset)
|
|
stats = cls(*agg)
|
|
stats.length = ofproto_v1_0.OFP_AGGREGATE_STATS_REPLY_SIZE
|
|
return stats
|
|
|
|
|
|
class OFPTableStats(collections.namedtuple('OFPTableStats',
|
|
('table_id', 'name', 'wildcards', 'max_entries', 'active_count',
|
|
'lookup_count', 'matched_count'))):
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
tbl = struct.unpack_from(ofproto_v1_0.OFP_TABLE_STATS_PACK_STR,
|
|
buf, offset)
|
|
stats = cls(*tbl)
|
|
stats.length = ofproto_v1_0.OFP_TABLE_STATS_SIZE
|
|
return stats
|
|
|
|
|
|
class OFPPortStats(collections.namedtuple('OFPPortStats',
|
|
('port_no', 'rx_packets', 'tx_packets', 'rx_bytes', 'tx_bytes',
|
|
'rx_dropped', 'tx_dropped', 'rx_errors', 'tx_errors',
|
|
'rx_frame_err', 'rx_over_err', 'rx_crc_err', 'collisions'))):
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
port = struct.unpack_from(ofproto_v1_0.OFP_PORT_STATS_PACK_STR,
|
|
buf, offset)
|
|
stats = cls(*port)
|
|
stats.length = ofproto_v1_0.OFP_PORT_STATS_SIZE
|
|
return stats
|
|
|
|
|
|
class OFPQueueStats(collections.namedtuple('OFPQueueStats',
|
|
('port_no', 'queue_id', 'tx_bytes', 'tx_packets', 'tx_errors'))):
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
queue = struct.unpack_from(ofproto_v1_0.OFP_QUEUE_STATS_PACK_STR,
|
|
buf, offset)
|
|
stats = cls(*queue)
|
|
stats.length = ofproto_v1_0.OFP_QUEUE_STATS_SIZE
|
|
return stats
|
|
|
|
|
|
class OFPVendorStats(collections.namedtuple('OFPVendorStats',
|
|
('specific_data'))):
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
stats = cls(buf[offset:])
|
|
stats.length = len(stats.specific_data)
|
|
return stats
|
|
|
|
|
|
class OFPQueuePropHeader(object):
|
|
_QUEUE_PROPERTIES = {}
|
|
|
|
@staticmethod
|
|
def register_queue_property(prop_type, prop_len):
|
|
def _register_queue_propery(cls):
|
|
cls.cls_prop_type = prop_type
|
|
cls.cls_prop_len = prop_len
|
|
OFPQueuePropHeader._QUEUE_PROPERTIES[prop_type] = cls
|
|
return cls
|
|
return _register_queue_propery
|
|
|
|
def __init__(self):
|
|
self.property = self.cls_prop_type
|
|
self.len = self.cls_prop_len
|
|
|
|
def __str__(self):
|
|
buf = super(OFPQueuePropHeader, self).__str__()
|
|
return msg_str_attr(self, buf, ('property', 'len'))
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
property_, len_ = struct.unpack_from(
|
|
ofproto_v1_0.OFP_QUEUE_PROP_HEADER_PACK_STR, buf, offset)
|
|
prop_cls = cls._QUEUE_PROPERTIES[property_]
|
|
assert property_ == prop_cls.cls_prop_type
|
|
assert len_ == prop_cls.cls_prop_len
|
|
|
|
offset += ofproto_v1_0.OFP_QUEUE_PROP_HEADER_SIZE
|
|
return prop_cls.parser(buf, offset)
|
|
|
|
|
|
@OFPQueuePropHeader.register_queue_property(
|
|
ofproto_v1_0.OFPQT_NONE, ofproto_v1_0.OFP_QUEUE_PROP_HEADER_SIZE)
|
|
class OFPQueuePropNone(OFPQueuePropHeader):
|
|
def __init__(self):
|
|
super(OFPQueuePropNone, self).__init__()
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
return cls()
|
|
|
|
|
|
@OFPQueuePropHeader.register_queue_property(
|
|
ofproto_v1_0.OFPQT_MIN_RATE, ofproto_v1_0.OFP_QUEUE_PROP_MIN_RATE_SIZE)
|
|
class OFPQueuePropMinRate(OFPQueuePropHeader):
|
|
def __init__(self, rate):
|
|
super(OFPQueuePropMinRate, self).__init__()
|
|
self.rate = rate
|
|
|
|
def __str__(self):
|
|
buf = super(OFPQueuePropMinRate, self).__str__()
|
|
return msg_str_attr(self, buf, ('rate',))
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
(rate,) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_QUEUE_PROP_MIN_RATE_PACK_STR,
|
|
buf, offset)
|
|
return cls(rate)
|
|
|
|
|
|
class OFPPacketQueue(object):
|
|
def __init__(self, queue_id, len_):
|
|
self.queue_id = queue_id
|
|
self.len = len_
|
|
self.properties = None
|
|
|
|
@classmethod
|
|
def parser(cls, buf, offset):
|
|
queue_id, len_ = struct.unpack_from(
|
|
ofproto_v1_0.OFP_PACKET_QUEUE_PQCK_STR, buf, offset)
|
|
packet_queue = cls(queue_id, len_)
|
|
|
|
packet_queue.properties = []
|
|
cur_len = ofproto_v1_0.OFP_PACKET_QUEUE_SIZE
|
|
offset += ofproto_v1_0.OFP_PACKET_QUEUE_SIZE
|
|
while (cur_len + ofproto_v1_0.OFP_QUEUE_PROP_HEADER_SIZE <=
|
|
packet_queue.len):
|
|
prop = OFPQueuePropHeader.parser(buf, offset)
|
|
packet_queue.properties.append(prop)
|
|
|
|
cur_len += prop.len
|
|
offset += prop.len
|
|
|
|
return packet_queue
|
|
|
|
#
|
|
# Symmetric messages
|
|
# parser + serializer
|
|
#
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_HELLO)
|
|
class OFPHello(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPHello, self).__init__(datapath)
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_ERROR)
|
|
class OFPErrorMsg(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPErrorMsg, self).__init__(datapath)
|
|
self.type = None
|
|
self.code = None
|
|
self.data = None
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPErrorMsg, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
msg.type, msg.code = struct.unpack_from(
|
|
ofproto_v1_0.OFP_ERROR_MSG_PACK_STR, msg.buf,
|
|
ofproto_v1_0.OFP_HEADER_SIZE)
|
|
msg.data = msg.buf[ofproto_v1_0.OFP_ERROR_MSG_SIZE:]
|
|
return msg
|
|
|
|
def _serialize_body(self):
|
|
assert self.data is not None
|
|
msg_pack_into(ofproto_v1_0.OFP_ERROR_MSG_PACK_STR, self.buf,
|
|
ofproto_v1_0.OFP_HEADER_SIZE, self.type, self.code)
|
|
self.buf += self.data
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_ECHO_REQUEST)
|
|
class OFPEchoRequest(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPEchoRequest, self).__init__(datapath)
|
|
self.data = None
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPEchoRequest, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
msg.data = msg.buf[ofproto_v1_0.OFP_HEADER_SIZE:]
|
|
return msg
|
|
|
|
def _serialize_body(self):
|
|
if self.data is not None:
|
|
self.buf += self.data
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_ECHO_REPLY)
|
|
class OFPEchoReply(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPEchoReply, self).__init__(datapath)
|
|
self.data = None
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPEchoReply, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
msg.data = msg.buf[ofproto_v1_0.OFP_HEADER_SIZE:]
|
|
return msg
|
|
|
|
def _serialize_body(self):
|
|
assert self.data is not None
|
|
self.buf += self.data
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_VENDOR)
|
|
class OFPVendor(MsgBase):
|
|
_VENDORS = {}
|
|
|
|
@staticmethod
|
|
def register_vendor(id_):
|
|
def _register_vendor(cls):
|
|
OFPVendor._VENDORS[id_] = cls
|
|
return cls
|
|
return _register_vendor
|
|
|
|
def __init__(self, datapath):
|
|
super(OFPVendor, self).__init__(datapath)
|
|
self.data = None
|
|
self.vendor = None
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPVendor, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
(msg.vendor,) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_VENDOR_HEADER_PACK_STR, msg.buf,
|
|
ofproto_v1_0.OFP_HEADER_SIZE)
|
|
|
|
cls_ = cls._VENDORS.get(msg.vendor)
|
|
if cls_:
|
|
msg.data = cls_.parser(datapath, msg.buf, 0)
|
|
else:
|
|
msg.data = msg.buf[ofproto_v1_0.OFP_VENDOR_HEADER_SIZE:]
|
|
|
|
return msg
|
|
|
|
def serialize_header(self):
|
|
msg_pack_into(ofproto_v1_0.OFP_VENDOR_HEADER_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_HEADER_SIZE, self.vendor)
|
|
|
|
def _serialize_body(self):
|
|
assert self.data is not None
|
|
self.serialize_header()
|
|
self.buf += self.data
|
|
|
|
|
|
@OFPVendor.register_vendor(ofproto_v1_0.NX_VENDOR_ID)
|
|
class NiciraHeader(OFPVendor):
|
|
_NX_SUBTYPES = {}
|
|
|
|
@staticmethod
|
|
def register_nx_subtype(subtype):
|
|
def _register_nx_subtype(cls):
|
|
cls.cls_subtype = subtype
|
|
NiciraHeader._NX_SUBTYPES[cls.cls_subtype] = cls
|
|
return cls
|
|
return _register_nx_subtype
|
|
|
|
def __init__(self, datapath, subtype):
|
|
super(NiciraHeader, self).__init__(datapath)
|
|
self.vendor = ofproto_v1_0.NX_VENDOR_ID
|
|
self.subtype = subtype
|
|
|
|
def serialize_header(self):
|
|
super(NiciraHeader, self).serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NICIRA_HEADER_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_HEADER_SIZE,
|
|
self.vendor, self.subtype)
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, buf, offset):
|
|
vendor, subtype = struct.unpack_from(
|
|
ofproto_v1_0.NICIRA_HEADER_PACK_STR, buf,
|
|
offset + ofproto_v1_0.OFP_HEADER_SIZE)
|
|
cls_ = cls._NX_SUBTYPES.get(subtype)
|
|
return cls_.parser(datapath, buf,
|
|
offset + ofproto_v1_0.NICIRA_HEADER_SIZE)
|
|
|
|
|
|
class NXTSetFlowFormat(NiciraHeader):
|
|
def __init__(self, datapath, flow_format):
|
|
super(NXTSetFlowFormat, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_SET_FLOW_FORMAT)
|
|
self.format = flow_format
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NX_SET_FLOW_FORMAT_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE, self.format)
|
|
|
|
|
|
class NXTFlowMod(NiciraHeader):
|
|
def __init__(self, datapath, cookie, command,
|
|
idle_timeout=0, hard_timeout=0,
|
|
priority=ofproto_v1_0.OFP_DEFAULT_PRIORITY,
|
|
buffer_id=0xffffffff, out_port=ofproto_v1_0.OFPP_NONE,
|
|
flags=0, rule=None, actions=None):
|
|
|
|
# the argument, rule, is positioned at the one before the last due
|
|
# to the layout struct nxt_flow_mod.
|
|
# Although rule must be given, default argument to rule, None,
|
|
# is given to allow other default value of argument before rule.
|
|
assert rule is not None
|
|
|
|
if actions is None:
|
|
actions = []
|
|
super(NXTFlowMod, self).__init__(datapath, ofproto_v1_0.NXT_FLOW_MOD)
|
|
self.cookie = cookie
|
|
self.command = command
|
|
self.idle_timeout = idle_timeout
|
|
self.hard_timeout = hard_timeout
|
|
self.priority = priority
|
|
self.buffer_id = buffer_id
|
|
self.out_port = out_port
|
|
self.flags = flags
|
|
self.rule = rule
|
|
self.actions = actions
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
|
|
offset = ofproto_v1_0.NX_FLOW_MOD_SIZE
|
|
match_len = nx_match.serialize_nxm_match(self.rule, self.buf, offset)
|
|
offset += nx_match.round_up(match_len)
|
|
|
|
msg_pack_into(ofproto_v1_0.NX_FLOW_MOD_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE,
|
|
self.cookie, self.command, self.idle_timeout,
|
|
self.hard_timeout, self.priority, self.buffer_id,
|
|
self.out_port, self.flags, match_len)
|
|
|
|
if self.actions is not None:
|
|
for a in self.actions:
|
|
a.serialize(self.buf, offset)
|
|
offset += a.len
|
|
|
|
|
|
class NXTRoleRequest(NiciraHeader):
|
|
def __init__(self, datapath, role):
|
|
super(NXTRoleRequest, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_ROLE_REQUEST)
|
|
self.role = role
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NX_ROLE_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE, self.role)
|
|
|
|
|
|
@NiciraHeader.register_nx_subtype(ofproto_v1_0.NXT_ROLE_REPLY)
|
|
class NXTRoleReply(NiciraHeader):
|
|
def __init__(self, datapath, role):
|
|
super(NXTRoleReply, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_ROLE_REPLY)
|
|
self.role = role
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, buf, offset):
|
|
(role,) = struct.unpack_from(
|
|
ofproto_v1_0.NX_ROLE_PACK_STR, buf, offset)
|
|
return cls(datapath, role)
|
|
|
|
|
|
class NXTFlowModTableId(NiciraHeader):
|
|
def __init__(self, datapath, set_):
|
|
super(NXTFlowModTableId, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_FLOW_MOD_TABLE_ID)
|
|
self.set = set_
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NX_FLOW_MOD_TABLE_ID_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE,
|
|
self.set)
|
|
|
|
|
|
@NiciraHeader.register_nx_subtype(ofproto_v1_0.NXT_FLOW_REMOVED)
|
|
class NXTFlowRemoved(NiciraHeader):
|
|
def __init__(self, datapath, cookie, priority, reason,
|
|
duration_sec, duration_nsec, idle_timeout, match_len,
|
|
packet_count, byte_count, match):
|
|
super(NXTFlowRemoved, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_FLOW_REMOVED)
|
|
self.cookie = cookie
|
|
self.priority = priority
|
|
self.reason = reason
|
|
self.duration_sec = duration_sec
|
|
self.duration_nsec = duration_nsec
|
|
self.idle_timeout = idle_timeout
|
|
self.match_len = match_len
|
|
self.packet_count = packet_count
|
|
self.byte_count = byte_count
|
|
self.match = match
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, buf, offset):
|
|
(cookie, priority, reason, duration_sec, duration_nsec,
|
|
idle_timeout, match_len,
|
|
packet_count, byte_count) = struct.unpack_from(
|
|
ofproto_v1_0.NX_FLOW_REMOVED_PACK_STR, buf, offset)
|
|
offset += (ofproto_v1_0.NX_FLOW_REMOVED_SIZE
|
|
- ofproto_v1_0.NICIRA_HEADER_SIZE)
|
|
match = nx_match.NXMatch.parser(buf, offset, match_len)
|
|
return cls(datapath, cookie, priority, reason, duration_sec,
|
|
duration_nsec, idle_timeout, match_len, packet_count,
|
|
byte_count, match)
|
|
|
|
|
|
class NXTSetPacketInFormat(NiciraHeader):
|
|
def __init__(self, datapath, packet_in_format):
|
|
super(NXTSetPacketInFormat, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_SET_PACKET_IN_FORMAT)
|
|
self.format = packet_in_format
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NX_SET_PACKET_IN_FORMAT_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE,
|
|
self.format)
|
|
|
|
|
|
@NiciraHeader.register_nx_subtype(ofproto_v1_0.NXT_PACKET_IN)
|
|
class NXTPacketIn(NiciraHeader):
|
|
def __init__(self, datapath, buffer_id, total_len, reason, table_id,
|
|
cookie, match_len, match, frame):
|
|
super(NXTPacketIn, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_PACKET_IN)
|
|
self.buffer_id = buffer_id
|
|
self.total_len = total_len
|
|
self.reason = reason
|
|
self.table_id = table_id
|
|
self.cookie = cookie
|
|
self.match_len = match_len
|
|
self.match = match
|
|
self.frame = frame
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, buf, offset):
|
|
(buffer_id, total_len, reason, table_id,
|
|
cookie, match_len) = struct.unpack_from(
|
|
ofproto_v1_0.NX_PACKET_IN_PACK_STR, buf, offset)
|
|
|
|
offset += (ofproto_v1_0.NX_PACKET_IN_SIZE
|
|
- ofproto_v1_0.NICIRA_HEADER_SIZE)
|
|
|
|
match = nx_match.NXMatch.parser(buf, offset, match_len)
|
|
offset += (match_len + 7) / 8 * 8
|
|
frame = buf[offset:]
|
|
if total_len < len(frame):
|
|
frame = frame[:total_len]
|
|
return cls(datapath, buffer_id, total_len, reason, table_id,
|
|
cookie, match_len, match, frame)
|
|
|
|
|
|
class NXTFlowAge(NiciraHeader):
|
|
def __init__(self, datapath):
|
|
super(NXTFlowAge, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_FLOW_AGE)
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
|
|
|
|
class NXTSetAsyncConfig(NiciraHeader):
|
|
def __init__(self, datapath, packet_in_mask, port_status_mask,
|
|
flow_removed_mask):
|
|
super(NXTSetAsyncConfig, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_SET_ASYNC_CONFIG)
|
|
self.packet_in_mask = packet_in_mask
|
|
self.port_status_mask = port_status_mask
|
|
self.flow_removed_mask = flow_removed_mask
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NX_ASYNC_CONFIG_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE,
|
|
self.packet_in_mask[0], self.packet_in_mask[1],
|
|
self.port_status_mask[0], self.port_status_mask[1],
|
|
self.flow_removed_mask[0], self.flow_removed_mask[1])
|
|
|
|
|
|
class NXTSetControllerId(NiciraHeader):
|
|
def __init__(self, datapath, controller_id):
|
|
super(NXTSetControllerId, self).__init__(
|
|
datapath, ofproto_v1_0.NXT_SET_CONTROLLER_ID)
|
|
self.controller_id = controller_id
|
|
|
|
def _serialize_body(self):
|
|
self.serialize_header()
|
|
msg_pack_into(ofproto_v1_0.NX_CONTROLLER_ID_PACK_STR,
|
|
self.buf, ofproto_v1_0.NICIRA_HEADER_SIZE,
|
|
self.controller_id)
|
|
|
|
|
|
#
|
|
# asymmetric message (datapath -> controller)
|
|
# parser only
|
|
#
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_FEATURES_REPLY)
|
|
class OFPSwitchFeatures(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPSwitchFeatures, self).__init__(datapath)
|
|
|
|
def __str__(self):
|
|
buf = super(OFPSwitchFeatures, self).__str__() + ' port'
|
|
for _port_no, p in getattr(self, 'ports', {}).items():
|
|
buf += ' ' + str(p)
|
|
return buf
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPSwitchFeatures, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
(msg.datapath_id,
|
|
msg.n_buffers,
|
|
msg.n_tables,
|
|
msg.capabilities,
|
|
msg.actions) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_SWITCH_FEATURES_PACK_STR, msg.buf,
|
|
ofproto_v1_0.OFP_HEADER_SIZE)
|
|
|
|
msg.ports = {}
|
|
n_ports = ((msg_len - ofproto_v1_0.OFP_SWITCH_FEATURES_SIZE) /
|
|
ofproto_v1_0.OFP_PHY_PORT_SIZE)
|
|
offset = ofproto_v1_0.OFP_SWITCH_FEATURES_SIZE
|
|
for _i in range(n_ports):
|
|
port = OFPPhyPort.parser(msg.buf, offset)
|
|
# print 'port = %s' % str(port)
|
|
msg.ports[port.port_no] = port
|
|
offset += ofproto_v1_0.OFP_PHY_PORT_SIZE
|
|
|
|
return msg
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_PORT_STATUS)
|
|
class OFPPortStatus(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPPortStatus, self).__init__(datapath)
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPPortStatus, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
msg.reason = struct.unpack_from(
|
|
ofproto_v1_0.OFP_PORT_STATUS_PACK_STR,
|
|
msg.buf, ofproto_v1_0.OFP_HEADER_SIZE)[0]
|
|
msg.desc = OFPPhyPort.parser(msg.buf,
|
|
ofproto_v1_0.OFP_PORT_STATUS_DESC_OFFSET)
|
|
return msg
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_PACKET_IN)
|
|
class OFPPacketIn(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPPacketIn, self).__init__(datapath)
|
|
|
|
def __str__(self):
|
|
buf = super(OFPPacketIn, self).__str__()
|
|
return msg_str_attr(self, buf,
|
|
('buffer_id', 'total_len', 'in_port', 'reason'))
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPPacketIn, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
(msg.buffer_id,
|
|
msg.total_len,
|
|
msg.in_port,
|
|
msg.reason) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_PACKET_IN_PACK_STR,
|
|
msg.buf, ofproto_v1_0.OFP_HEADER_SIZE)
|
|
msg.data = msg.buf[ofproto_v1_0.OFP_PACKET_IN_DATA_OFFSET:]
|
|
if msg.total_len < len(msg.data):
|
|
# discard padding for 8-byte alignment of OFP packet
|
|
msg.data = msg.data[:msg.total_len]
|
|
return msg
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_GET_CONFIG_REPLY)
|
|
class OFPGetConfigReply(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPGetConfigReply, self).__init__(datapath)
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPGetConfigReply, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
(msg.flags, msg.miss_send_len) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_SWITCH_CONFIG_PACK_STR,
|
|
msg.buf, ofproto_v1_0.OFP_HEADER_SIZE)
|
|
return msg
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_BARRIER_REPLY)
|
|
class OFPBarrierReply(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPBarrierReply, self).__init__(datapath)
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_FLOW_REMOVED)
|
|
class OFPFlowRemoved(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPFlowRemoved, self).__init__(datapath)
|
|
|
|
def __str__(self):
|
|
buf = super(OFPFlowRemoved, self).__str__()
|
|
return msg_str_attr(self, buf,
|
|
('match', 'cookie', 'priority', 'reason',
|
|
'duration_sec', 'duration_nsec',
|
|
'idle_timeout', 'packet_count', 'byte_count'))
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPFlowRemoved, cls).parser(datapath, version, msg_type,
|
|
msg_len, xid, buf)
|
|
|
|
msg.match = OFPMatch.parse(msg.buf, ofproto_v1_0.OFP_HEADER_SIZE)
|
|
|
|
(msg.cookie,
|
|
msg.priority,
|
|
msg.reason,
|
|
msg.duration_sec,
|
|
msg.duration_nsec,
|
|
msg.idle_timeout,
|
|
msg.packet_count,
|
|
msg.byte_count) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_FLOW_REMOVED_PACK_STR0, msg.buf,
|
|
ofproto_v1_0.OFP_HEADER_SIZE + ofproto_v1_0.OFP_MATCH_SIZE)
|
|
|
|
return msg
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_QUEUE_GET_CONFIG_REPLY)
|
|
class OFPQueueGetConfigReply(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPQueueGetConfigReply, self).__init__(datapath)
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
msg = super(OFPQueueGetConfigReply, cls).parser(
|
|
datapath, version, msg_type, msg_len, xid, buf)
|
|
|
|
offset = ofproto_v1_0.OFP_HEADER_SIZE
|
|
(msg.port,) = struct.unpack_from(
|
|
ofproto_v1_0.OFP_QUEUE_GET_CONFIG_REPLY_PACK_STR, msg.buf, offset)
|
|
|
|
msg.queues = []
|
|
offset = ofproto_v1_0.OFP_QUEUE_GET_CONFIG_REPLY_SIZE
|
|
while offset + ofproto_v1_0.OFP_PACKET_QUEUE_SIZE <= msg_len:
|
|
queue = OFPPacketQueue.parser(msg.buf, offset)
|
|
msg.queues.append(queue)
|
|
|
|
offset += queue.len
|
|
|
|
return msg
|
|
|
|
|
|
def _set_stats_type(stats_type, stats_body_cls):
|
|
def _set_cls_stats_type(cls):
|
|
cls.cls_stats_type = stats_type
|
|
cls.cls_stats_body_cls = stats_body_cls
|
|
return cls
|
|
return _set_cls_stats_type
|
|
|
|
|
|
@_register_parser
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPStatsReply(MsgBase):
|
|
_STATS_MSG_TYPES = {}
|
|
|
|
@staticmethod
|
|
def register_stats_type(body_single_struct=False):
|
|
def _register_stats_type(cls):
|
|
assert cls.cls_stats_type is not None
|
|
assert cls.cls_stats_type not in OFPStatsReply._STATS_MSG_TYPES
|
|
assert cls.cls_stats_body_cls is not None
|
|
cls.cls_body_single_struct = body_single_struct
|
|
OFPStatsReply._STATS_MSG_TYPES[cls.cls_stats_type] = cls
|
|
return cls
|
|
return _register_stats_type
|
|
|
|
def __init__(self, datapath):
|
|
super(OFPStatsReply, self).__init__(datapath)
|
|
self.type = None
|
|
self.flags = None
|
|
self.body = None
|
|
|
|
@classmethod
|
|
def parser_stats_body(cls, buf, msg_len, offset):
|
|
body_cls = cls.cls_stats_body_cls
|
|
body = []
|
|
while offset < msg_len:
|
|
entry = body_cls.parser(buf, offset)
|
|
body.append(entry)
|
|
offset += entry.length
|
|
|
|
if cls.cls_body_single_struct:
|
|
return body[0]
|
|
return body
|
|
|
|
@classmethod
|
|
def parser_stats(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
# call MsgBase::parser, not OFPStatsReply::parser
|
|
msg = MsgBase.parser.__func__(
|
|
cls, datapath, version, msg_type, msg_len, xid, buf)
|
|
msg.body = msg.parser_stats_body(msg.buf, msg.msg_len,
|
|
ofproto_v1_0.OFP_STATS_MSG_SIZE)
|
|
return msg
|
|
|
|
@classmethod
|
|
def parser(cls, datapath, version, msg_type, msg_len, xid, buf):
|
|
type_, flags = struct.unpack_from(ofproto_v1_0.OFP_STATS_MSG_PACK_STR,
|
|
buffer(buf),
|
|
ofproto_v1_0.OFP_HEADER_SIZE)
|
|
stats_type_cls = cls._STATS_MSG_TYPES.get(type_)
|
|
msg = stats_type_cls.parser_stats(
|
|
datapath, version, msg_type, msg_len, xid, buf)
|
|
msg.type = type_
|
|
msg.flags = flags
|
|
return msg
|
|
|
|
|
|
@OFPStatsReply.register_stats_type(body_single_struct=True)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_DESC, OFPDescStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPDescStatsReply(OFPStatsReply):
|
|
def __init__(self, datapath):
|
|
super(OFPDescStatsReply, self).__init__(datapath)
|
|
|
|
|
|
@OFPStatsReply.register_stats_type()
|
|
@_set_stats_type(ofproto_v1_0.OFPST_FLOW, OFPFlowStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPFlowStatsReply(OFPStatsReply):
|
|
def __init__(self, datapath):
|
|
super(OFPFlowStatsReply, self).__init__(datapath)
|
|
|
|
|
|
@OFPStatsReply.register_stats_type()
|
|
@_set_stats_type(ofproto_v1_0.OFPST_AGGREGATE, OFPAggregateStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPAggregateStatsReply(OFPStatsReply):
|
|
def __init__(self, datapath):
|
|
super(OFPAggregateStatsReply, self).__init__(datapath)
|
|
|
|
|
|
@OFPStatsReply.register_stats_type()
|
|
@_set_stats_type(ofproto_v1_0.OFPST_TABLE, OFPTableStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPTableStatsReply(OFPStatsReply):
|
|
def __init__(self, datapath):
|
|
super(OFPTableStatsReply, self).__init__(datapath)
|
|
|
|
|
|
@OFPStatsReply.register_stats_type()
|
|
@_set_stats_type(ofproto_v1_0.OFPST_PORT, OFPPortStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPPortStatsReply(OFPStatsReply):
|
|
def __init__(self, datapath):
|
|
super(OFPPortStatsReply, self).__init__(datapath)
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|
|
|
|
|
@OFPStatsReply.register_stats_type()
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@_set_stats_type(ofproto_v1_0.OFPST_QUEUE, OFPQueueStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
|
|
class OFPQueueStatsReply(OFPStatsReply):
|
|
def __init__(self, datapath):
|
|
super(OFPQueueStatsReply, self).__init__(datapath)
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|
|
|
|
|
@OFPStatsReply.register_stats_type()
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|
@_set_stats_type(ofproto_v1_0.OFPST_VENDOR, OFPVendorStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REPLY)
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|
class OFPVendorStatsReply(OFPStatsReply):
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def __init__(self, datapath):
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super(OFPVendorStatsReply, self).__init__(datapath)
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|
|
|
|
|
#
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|
# controller-to-switch message
|
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# serializer only
|
|
#
|
|
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|
|
|
@_set_msg_reply(OFPSwitchFeatures)
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@_set_msg_type(ofproto_v1_0.OFPT_FEATURES_REQUEST)
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|
class OFPFeaturesRequest(MsgBase):
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def __init__(self, datapath):
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super(OFPFeaturesRequest, self).__init__(datapath)
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|
|
|
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|
@_set_msg_type(ofproto_v1_0.OFPT_GET_CONFIG_REQUEST)
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class OFPGetConfigRequest(MsgBase):
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def __init__(self, datapath):
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super(OFPGetConfigRequest, self).__init__(datapath)
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|
|
|
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|
@_set_msg_type(ofproto_v1_0.OFPT_SET_CONFIG)
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|
class OFPSetConfig(MsgBase):
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def __init__(self, datapath, flags=None, miss_send_len=None):
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|
super(OFPSetConfig, self).__init__(datapath)
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|
self.flags = flags
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|
self.miss_send_len = miss_send_len
|
|
|
|
def _serialize_body(self):
|
|
assert self.flags is not None
|
|
assert self.miss_send_len is not None
|
|
msg_pack_into(ofproto_v1_0.OFP_SWITCH_CONFIG_PACK_STR,
|
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self.buf, ofproto_v1_0.OFP_HEADER_SIZE,
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|
self.flags, self.miss_send_len)
|
|
|
|
|
|
@_set_msg_type(ofproto_v1_0.OFPT_PACKET_OUT)
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class OFPPacketOut(MsgBase):
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def __init__(self, datapath, buffer_id=None, in_port=None, actions=None,
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|
data=None):
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super(OFPPacketOut, self).__init__(datapath)
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self.buffer_id = buffer_id
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|
self.in_port = in_port
|
|
self.actions_len = None
|
|
self.actions = actions
|
|
self.data = data
|
|
|
|
def _serialize_body(self):
|
|
assert self.buffer_id is not None
|
|
assert self.in_port is not None
|
|
assert self.actions_len is None
|
|
assert self.actions is not None
|
|
|
|
self.actions_len = 0
|
|
offset = ofproto_v1_0.OFP_PACKET_OUT_SIZE
|
|
for a in self.actions:
|
|
a.serialize(self.buf, offset)
|
|
offset += a.len
|
|
self.actions_len += a.len
|
|
|
|
if self.data is not None:
|
|
assert self.buffer_id == 0xffffffff
|
|
self.buf += self.data
|
|
|
|
msg_pack_into(ofproto_v1_0.OFP_PACKET_OUT_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_HEADER_SIZE,
|
|
self.buffer_id, self.in_port, self.actions_len)
|
|
|
|
|
|
@_set_msg_type(ofproto_v1_0.OFPT_FLOW_MOD)
|
|
class OFPFlowMod(MsgBase):
|
|
def __init__(self, datapath, match, cookie, command,
|
|
idle_timeout=0, hard_timeout=0,
|
|
priority=ofproto_v1_0.OFP_DEFAULT_PRIORITY,
|
|
buffer_id=0xffffffff, out_port=ofproto_v1_0.OFPP_NONE,
|
|
flags=0, actions=None):
|
|
if actions is None:
|
|
actions = []
|
|
super(OFPFlowMod, self).__init__(datapath)
|
|
self.match = match
|
|
self.cookie = cookie
|
|
self.command = command
|
|
self.idle_timeout = idle_timeout
|
|
self.hard_timeout = hard_timeout
|
|
self.priority = priority
|
|
self.buffer_id = buffer_id
|
|
self.out_port = out_port
|
|
self.flags = flags
|
|
self.actions = actions
|
|
|
|
def _serialize_body(self):
|
|
offset = ofproto_v1_0.OFP_HEADER_SIZE
|
|
self.match.serialize(self.buf, offset)
|
|
|
|
offset += ofproto_v1_0.OFP_MATCH_SIZE
|
|
msg_pack_into(ofproto_v1_0.OFP_FLOW_MOD_PACK_STR0, self.buf, offset,
|
|
self.cookie, self.command,
|
|
self.idle_timeout, self.hard_timeout,
|
|
self.priority, self.buffer_id, self.out_port,
|
|
self.flags)
|
|
|
|
offset = ofproto_v1_0.OFP_FLOW_MOD_SIZE
|
|
if self.actions is not None:
|
|
for a in self.actions:
|
|
a.serialize(self.buf, offset)
|
|
offset += a.len
|
|
|
|
|
|
@_set_msg_reply(OFPBarrierReply)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_BARRIER_REQUEST)
|
|
class OFPBarrierRequest(MsgBase):
|
|
def __init__(self, datapath):
|
|
super(OFPBarrierRequest, self).__init__(datapath)
|
|
|
|
|
|
@_set_msg_reply(OFPQueueGetConfigReply)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_QUEUE_GET_CONFIG_REQUEST)
|
|
class OFPQueueGetConfigRequest(MsgBase):
|
|
def __init__(self, datapath, port):
|
|
super(OFPQueueGetConfigRequest, self).__init__(datapath)
|
|
self.port = port
|
|
|
|
def _serialize_body(self):
|
|
msg_pack_into(ofproto_v1_0.OFP_QUEUE_GET_CONFIG_REQUEST_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_HEADER_SIZE, self.port)
|
|
|
|
|
|
class OFPStatsRequest(MsgBase):
|
|
def __init__(self, datapath, flags):
|
|
assert flags == 0 # none yet defined
|
|
|
|
super(OFPStatsRequest, self).__init__(datapath)
|
|
self.type = self.__class__.cls_stats_type
|
|
self.flags = flags
|
|
|
|
def _serialize_stats_body(self):
|
|
pass
|
|
|
|
def _serialize_body(self):
|
|
msg_pack_into(ofproto_v1_0.OFP_STATS_MSG_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_HEADER_SIZE,
|
|
self.type, self.flags)
|
|
self._serialize_stats_body()
|
|
|
|
|
|
@_set_msg_reply(OFPDescStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_DESC, OFPDescStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPDescStatsRequest(OFPStatsRequest):
|
|
def __init__(self, datapath, flags):
|
|
super(OFPDescStatsRequest, self).__init__(datapath, flags)
|
|
|
|
|
|
class OFPFlowStatsRequestBase(OFPStatsRequest):
|
|
def __init__(self, datapath, flags, match, table_id, out_port):
|
|
super(OFPFlowStatsRequestBase, self).__init__(datapath, flags)
|
|
self.match = match
|
|
self.table_id = table_id
|
|
self.out_port = out_port
|
|
|
|
def _serialize_stats_body(self):
|
|
offset = ofproto_v1_0.OFP_STATS_MSG_SIZE
|
|
self.match.serialize(self.buf, offset)
|
|
|
|
offset += ofproto_v1_0.OFP_MATCH_SIZE
|
|
msg_pack_into(ofproto_v1_0.OFP_FLOW_STATS_REQUEST_ID_PORT_STR,
|
|
self.buf, offset, self.table_id, self.out_port)
|
|
|
|
|
|
@_set_msg_reply(OFPFlowStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_FLOW, OFPFlowStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPFlowStatsRequest(OFPFlowStatsRequestBase):
|
|
def __init__(self, datapath, flags, match, table_id, out_port):
|
|
super(OFPFlowStatsRequest, self).__init__(
|
|
datapath, flags, match, table_id, out_port)
|
|
|
|
|
|
@_set_msg_reply(OFPAggregateStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_AGGREGATE, OFPAggregateStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPAggregateStatsRequest(OFPFlowStatsRequestBase):
|
|
def __init__(self, datapath, flags, match, table_id, out_port):
|
|
super(OFPAggregateStatsRequest, self).__init__(
|
|
datapath, flags, match, table_id, out_port)
|
|
|
|
|
|
@_set_msg_reply(OFPTableStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_TABLE, OFPTableStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPTableStatsRequest(OFPStatsRequest):
|
|
def __init__(self, datapath, flags):
|
|
super(OFPTableStatsRequest, self).__init__(datapath, flags)
|
|
|
|
|
|
@_set_msg_reply(OFPPortStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_PORT, OFPPortStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPPortStatsRequest(OFPStatsRequest):
|
|
def __init__(self, datapath, flags, port_no):
|
|
super(OFPPortStatsRequest, self).__init__(datapath, flags)
|
|
self.port_no = port_no
|
|
|
|
def _serialize_stats_body(self):
|
|
msg_pack_into(ofproto_v1_0.OFP_PORT_STATS_REQUEST_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_STATS_MSG_SIZE, self.port_no)
|
|
|
|
|
|
@_set_msg_reply(OFPQueueStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_QUEUE, OFPQueueStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPQueueStatsRequest(OFPStatsRequest):
|
|
def __init__(self, datapath, flags, port_no, queue_id):
|
|
super(OFPQueueStatsRequest, self).__init__(datapath, flags)
|
|
self.port_no = port_no
|
|
self.queue_id = queue_id
|
|
|
|
def _serialize_stats_body(self):
|
|
msg_pack_into(ofproto_v1_0.OFP_QUEUE_STATS_REQUEST_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_STATS_MSG_SIZE,
|
|
self.port_no, self.queue_id)
|
|
|
|
|
|
@_set_msg_reply(OFPVendorStatsReply)
|
|
@_set_stats_type(ofproto_v1_0.OFPST_VENDOR, OFPVendorStats)
|
|
@_set_msg_type(ofproto_v1_0.OFPT_STATS_REQUEST)
|
|
class OFPVendorStatsRequest(OFPStatsRequest):
|
|
def __init__(self, datapath, flags, vendor, specific_data):
|
|
super(OFPVendorStatsRequest, self).__init__(datapath, flags)
|
|
self.vendor = vendor
|
|
self.specific_data = specific_data
|
|
|
|
def _serialize_stats_body(self):
|
|
msg_pack_into(ofproto_v1_0.OFP_VENDOR_STATS_MSG_PACK_STR,
|
|
self.buf, ofproto_v1_0.OFP_STATS_MSG_SIZE,
|
|
self.vendor)
|
|
self.buf += self.specific_data
|