9f1f1726d0
After forking from Ryu, the namespace needs to change from 'ryu' to 'os_ken' so that it won't collide with the namespace of the old library. Change-Id: I807a8785e525cc02825d15a1a01eec3d5d20cce4
533 lines
20 KiB
Python
533 lines
20 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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"""
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OpenFlow 1.0 definitions.
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"""
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from os_ken.ofproto import ofproto_utils
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from os_ken.ofproto.nicira_ext import * # For API compat
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MAX_XID = 0xffffffff
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# define constants
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OFP_VERSION = 0x01
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OFP_MAX_TABLE_NAME_LEN = 32
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OFP_MAX_TABLE_NAME_LEN_STR = str(OFP_MAX_TABLE_NAME_LEN)
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OFP_MAX_PORT_NAME_LEN = 16
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OFP_TCP_PORT = 6633
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OFP_SSL_PORT = 6633
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OFP_ETH_ALEN = 6
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OFP_ETH_ALEN_STR = str(OFP_ETH_ALEN)
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OFP_NO_BUFFER = 0xffffffff
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# enum ofp_port
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OFPP_MAX = 0xff00
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OFPP_IN_PORT = 0xfff8 # Send the packet out the input port. This
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# virtual port must be explicitly used
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# in order to send back out of the input
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# port.
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OFPP_TABLE = 0xfff9 # Perform actions in flow table.
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# NB: This can only be the destination
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# port for packet-out messages.
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OFPP_NORMAL = 0xfffa # Process with normal L2/L3 switching.
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OFPP_FLOOD = 0xfffb # All physical ports except input port and
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# those disabled by STP.
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OFPP_ALL = 0xfffc # All physical ports except input port.
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OFPP_CONTROLLER = 0xfffd # Send to controller.
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OFPP_LOCAL = 0xfffe # Local openflow "port".
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OFPP_NONE = 0xffff # Not associated with a physical port.
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# enum ofp_type
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OFPT_HELLO = 0 # Symmetric message
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OFPT_ERROR = 1 # Symmetric message
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OFPT_ECHO_REQUEST = 2 # Symmetric message
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OFPT_ECHO_REPLY = 3 # Symmetric message
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OFPT_VENDOR = 4 # Symmetric message
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OFPT_FEATURES_REQUEST = 5 # Controller/switch message
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OFPT_FEATURES_REPLY = 6 # Controller/switch message
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OFPT_GET_CONFIG_REQUEST = 7 # Controller/switch message
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OFPT_GET_CONFIG_REPLY = 8 # Controller/switch message
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OFPT_SET_CONFIG = 9 # Controller/switch message
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OFPT_PACKET_IN = 10 # Async message
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OFPT_FLOW_REMOVED = 11 # Async message
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OFPT_PORT_STATUS = 12 # Async message
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OFPT_PACKET_OUT = 13 # Controller/switch message
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OFPT_FLOW_MOD = 14 # Controller/switch message
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OFPT_PORT_MOD = 15 # Controller/switch message
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OFPT_STATS_REQUEST = 16 # Controller/switch message
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OFPT_STATS_REPLY = 17 # Controller/switch message
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OFPT_BARRIER_REQUEST = 18 # Controller/switch message
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OFPT_BARRIER_REPLY = 19 # Controller/switch message
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OFPT_QUEUE_GET_CONFIG_REQUEST = 20 # Controller/switch message
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OFPT_QUEUE_GET_CONFIG_REPLY = 21 # Controller/switch message
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OFP_HEADER_PACK_STR = '!BBHI'
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OFP_HEADER_SIZE = 8
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OFP_MSG_SIZE_MAX = 65535
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assert calcsize(OFP_HEADER_PACK_STR) == OFP_HEADER_SIZE
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# define constants
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OFP_DEFAULT_MISS_SEND_LEN = 128
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# enum ofp_config_flags
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OFPC_FRAG_NORMAL = 0 # No special handling for fragments.
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OFPC_FRAG_DROP = 1 # Drop fragments.
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OFPC_FRAG_REASM = 2 # Reassemble (only if OFPC_IP_REASM set).
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OFPC_FRAG_NX_MATCH = 3 # Make first fragments available for matching.
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OFPC_FRAG_MASK = 3
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OFP_SWITCH_CONFIG_PACK_STR = '!HH'
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OFP_SWITCH_CONFIG_SIZE = 12
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assert (calcsize(OFP_SWITCH_CONFIG_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_SWITCH_CONFIG_SIZE)
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# enum ofp_capabilities
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OFPC_FLOW_STATS = 1 << 0 # Flow statistics.
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OFPC_TABLE_STATS = 1 << 1 # Table statistics.
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OFPC_PORT_STATS = 1 << 2 # Port statistics.
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OFPC_STP = 1 << 3 # 802.1d spanning tree.
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OFPC_RESERVED = 1 << 4 # Reserved, must not be set.
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OFPC_IP_REASM = 1 << 5 # Can reassemble IP fragments.
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OFPC_QUEUE_STATS = 1 << 6 # Queue statistics.
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OFPC_ARP_MATCH_IP = 1 << 7 # Match IP addresses in ARP pkts.
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# enum ofp_port_config
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OFPPC_PORT_DOWN = 1 << 0 # Port is administratively down.
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OFPPC_NO_STP = 1 << 1 # Disable 802.1D spanning tree on port.
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OFPPC_NO_RECV = 1 << 2 # Drop all packets except 802.1D
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# spanning tree packets
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OFPPC_NO_RECV_STP = 1 << 3 # Drop received 802.1D STP packets.
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OFPPC_NO_FLOOD = 1 << 4 # Do not include this port when flooding.
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OFPPC_NO_FWD = 1 << 5 # Drop packets forwarded to port.
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OFPPC_NO_PACKET_IN = 1 << 6 # Do not send packet-in msgs for port.
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# enum ofp_port_state
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OFPPS_LINK_DOWN = 1 << 0 # No physical link present.
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OFPPS_STP_LISTEN = 0 << 8 # Not learning or relaying frames.
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OFPPS_STP_LEARN = 1 << 8 # Learning but not relaying frames.
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OFPPS_STP_FORWARD = 2 << 8 # Learning and relaying frames.
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OFPPS_STP_BLOCK = 3 << 8 # Not part of spanning tree.
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OFPPS_STP_MASK = 3 << 8 # Bit mask for OFPPS_STP_* values.
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# enum ofp_port_features
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OFPPF_10MB_HD = 1 << 0 # 10 Mb half-duplex rate support.
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OFPPF_10MB_FD = 1 << 1 # 10 Mb full-duplex rate support.
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OFPPF_100MB_HD = 1 << 2 # 100 Mb half-duplex rate support.
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OFPPF_100MB_FD = 1 << 3 # 100 Mb full-duplex rate support.
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OFPPF_1GB_HD = 1 << 4 # 1 Gb half-duplex rate support.
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OFPPF_1GB_FD = 1 << 5 # 1 Gb full-duplex rate support.
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OFPPF_10GB_FD = 1 << 6 # 10 Gb full-duplex rate support.
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OFPPF_COPPER = 1 << 7 # Copper medium.
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OFPPF_FIBER = 1 << 8 # Fiber medium.
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OFPPF_AUTONEG = 1 << 9 # Auto-negotiation.
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OFPPF_PAUSE = 1 << 10 # Pause.
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OFPPF_PAUSE_ASYM = 1 << 11 # Asymmetric pause.
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_OFP_PHY_PORT_PACK_STR = 'H' + OFP_ETH_ALEN_STR + 's' + \
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str(OFP_MAX_PORT_NAME_LEN) + 'sIIIIII'
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OFP_PHY_PORT_PACK_STR = '!' + _OFP_PHY_PORT_PACK_STR
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OFP_PHY_PORT_SIZE = 48
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assert calcsize(OFP_PHY_PORT_PACK_STR) == OFP_PHY_PORT_SIZE
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OFP_SWITCH_FEATURES_PACK_STR = '!QIB3xII'
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OFP_SWITCH_FEATURES_SIZE = 32
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assert (calcsize(OFP_SWITCH_FEATURES_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_SWITCH_FEATURES_SIZE)
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# enum ofp_port_reason
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OFPPR_ADD = 0 # The port was added.
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OFPPR_DELETE = 1 # The port was removed.
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OFPPR_MODIFY = 2 # Some attribute of the port has changed.
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OFP_PORT_STATUS_PACK_STR = '!B7x' + _OFP_PHY_PORT_PACK_STR
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OFP_PORT_STATUS_DESC_OFFSET = OFP_HEADER_SIZE + 8
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OFP_PORT_STATUS_SIZE = 64
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assert (calcsize(OFP_PORT_STATUS_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_PORT_STATUS_SIZE)
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OFP_PORT_MOD_PACK_STR = '!H' + OFP_ETH_ALEN_STR + 'sIII4x'
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OFP_PORT_MOD_SIZE = 32
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assert calcsize(OFP_PORT_MOD_PACK_STR) + OFP_HEADER_SIZE == OFP_PORT_MOD_SIZE
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# enum ofp_packet_in_reason
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OFPR_NO_MATCH = 0 # No matching flow.
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OFPR_ACTION = 1 # Action explicitly output to controller.
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# OF1.0 spec says OFP_ASSERT(sizeof(struct ofp_packet_in) == 20).
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# It's quite bogus as it assumes a specific class of C implementations.
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# (well, if it was C. it's unclear from the spec itself.)
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# We just use the real size of the structure as this is not C. This
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# agrees with on-wire messages OpenFlow Reference Release and Open vSwitch
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# produce.
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OFP_PACKET_IN_PACK_STR = '!IHHBx'
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OFP_PACKET_IN_SIZE = 18
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assert calcsize(OFP_PACKET_IN_PACK_STR) + OFP_HEADER_SIZE == OFP_PACKET_IN_SIZE
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# enum ofp_action_type
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OFPAT_OUTPUT = 0 # Output to switch port.
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OFPAT_SET_VLAN_VID = 1 # Set the 802.1q VLAN id.
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OFPAT_SET_VLAN_PCP = 2 # Set the 802.1q priority.
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OFPAT_STRIP_VLAN = 3 # Strip the 802.1q header.
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OFPAT_SET_DL_SRC = 4 # Ethernet source address.
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OFPAT_SET_DL_DST = 5 # Ethernet destination address.
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OFPAT_SET_NW_SRC = 6 # IP source address.
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OFPAT_SET_NW_DST = 7 # IP destination address.
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OFPAT_SET_NW_TOS = 8 # IP ToS (DSCP field, 6 bits).
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OFPAT_SET_TP_SRC = 9 # TCP/UDP source port.
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OFPAT_SET_TP_DST = 10 # TCP/UDP destination port.
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OFPAT_ENQUEUE = 11 # Output to queue.
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OFPAT_VENDOR = 0xffff
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OFP_ACTION_OUTPUT_PACK_STR = '!HHHH'
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OFP_ACTION_OUTPUT_SIZE = 8
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assert calcsize(OFP_ACTION_OUTPUT_PACK_STR) == OFP_ACTION_OUTPUT_SIZE
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OFP_ACTION_VLAN_VID_PACK_STR = '!HHH2x'
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OFP_ACTION_VLAN_VID_SIZE = 8
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assert calcsize(OFP_ACTION_VLAN_VID_PACK_STR) == OFP_ACTION_VLAN_VID_SIZE
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OFP_ACTION_VLAN_PCP_PACK_STR = '!HHB3x'
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OFP_ACTION_VLAN_PCP_SIZE = 8
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assert calcsize(OFP_ACTION_VLAN_PCP_PACK_STR) == OFP_ACTION_VLAN_PCP_SIZE
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OFP_ACTION_DL_ADDR_PACK_STR = '!HH' + OFP_ETH_ALEN_STR + 's6x'
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OFP_ACTION_DL_ADDR_SIZE = 16
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assert calcsize(OFP_ACTION_DL_ADDR_PACK_STR) == OFP_ACTION_DL_ADDR_SIZE
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OFP_ACTION_NW_ADDR_PACK_STR = '!HHI'
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OFP_ACTION_NW_ADDR_SIZE = 8
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assert calcsize(OFP_ACTION_NW_ADDR_PACK_STR) == OFP_ACTION_NW_ADDR_SIZE
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OFP_ACTION_NW_TOS_PACK_STR = '!HHB3x'
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OFP_ACTION_NW_TOS_SIZE = 8
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assert calcsize(OFP_ACTION_NW_TOS_PACK_STR) == OFP_ACTION_NW_TOS_SIZE
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OFP_ACTION_TP_PORT_PACK_STR = '!HHH2x'
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OFP_ACTION_TP_PORT_SIZE = 8
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assert calcsize(OFP_ACTION_TP_PORT_PACK_STR) == OFP_ACTION_TP_PORT_SIZE
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OFP_ACTION_VENDOR_HEADER_PACK_STR = '!HHI'
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OFP_ACTION_VENDOR_HEADER_SIZE = 8
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assert (calcsize(OFP_ACTION_VENDOR_HEADER_PACK_STR) ==
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OFP_ACTION_VENDOR_HEADER_SIZE)
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# OpenFlow1.2 or later compatible
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OFP_ACTION_EXPERIMENTER_HEADER_SIZE = OFP_ACTION_VENDOR_HEADER_SIZE
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OFP_ACTION_HEADER_PACK_STR = '!HH4x'
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OFP_ACTION_HEADER_SIZE = 8
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assert calcsize(OFP_ACTION_HEADER_PACK_STR) == OFP_ACTION_HEADER_SIZE
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OFP_ACTION_ENQUEUE_PACK_STR = '!HHH6xI'
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OFP_ACTION_ENQUEUE_SIZE = 16
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assert calcsize(OFP_ACTION_ENQUEUE_PACK_STR) == OFP_ACTION_ENQUEUE_SIZE
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OFP_ACTION_PACK_STR = '!H'
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# because of union ofp_action
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# OFP_ACTION_SIZE = 8
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# assert calcsize(OFP_ACTION_PACK_STR) == OFP_ACTION_SIZE
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OFP_PACKET_OUT_PACK_STR = '!IHH'
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OFP_PACKET_OUT_SIZE = 16
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assert (calcsize(OFP_PACKET_OUT_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_PACKET_OUT_SIZE)
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# enum ofp_flow_mod_command
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OFPFC_ADD = 0 # New flow.
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OFPFC_MODIFY = 1 # Modify all matching flows.
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OFPFC_MODIFY_STRICT = 2 # Modify entry strictly matching wildcards
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OFPFC_DELETE = 3 # Delete all matching flows.
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OFPFC_DELETE_STRICT = 4 # Strictly match wildcards and priority.
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# enum ofp_flow_wildcards
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OFPFW_IN_PORT = 1 << 0 # Switch input port.
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OFPFW_DL_VLAN = 1 << 1 # VLAN vid.
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OFPFW_DL_SRC = 1 << 2 # Ethernet source address.
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OFPFW_DL_DST = 1 << 3 # Ethernet destination address.
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OFPFW_DL_TYPE = 1 << 4 # Ethernet frame type.
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OFPFW_NW_PROTO = 1 << 5 # IP protocol.
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OFPFW_TP_SRC = 1 << 6 # TCP/UDP source port.
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OFPFW_TP_DST = 1 << 7 # TCP/UDP destination port.
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OFPFW_NW_SRC_SHIFT = 8
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OFPFW_NW_SRC_BITS = 6
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OFPFW_NW_SRC_MASK = ((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT
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OFPFW_NW_SRC = OFPFW_NW_SRC_MASK # IP source address (not in OF Spec).
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OFPFW_NW_SRC_ALL = 32 << OFPFW_NW_SRC_SHIFT
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OFPFW_NW_DST_SHIFT = 14
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OFPFW_NW_DST_BITS = 6
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OFPFW_NW_DST_MASK = ((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT
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OFPFW_NW_DST = OFPFW_NW_DST_MASK # IP destination address (not in OF Spec).
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OFPFW_NW_DST_ALL = 32 << OFPFW_NW_DST_SHIFT
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OFPFW_DL_VLAN_PCP = 1 << 20 # VLAN priority.
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OFPFW_NW_TOS = 1 << 21 # IP ToS (DSCP field, 6 bits).
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OFPFW_ALL = ((1 << 22) - 1)
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# define constants
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OFPFW_ICMP_TYPE = OFPFW_TP_SRC
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OFPFW_ICMP_CODE = OFPFW_TP_DST
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OFP_DL_TYPE_ETH2_CUTOFF = 0x0600
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OFP_DL_TYPE_NOT_ETH_TYPE = 0x05ff
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OFP_VLAN_NONE = 0xffff
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_OFP_MATCH_PACK_STR = 'IH' + OFP_ETH_ALEN_STR + 's' + OFP_ETH_ALEN_STR + \
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'sHBxHBB2xIIHH'
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OFP_MATCH_PACK_STR = '!' + _OFP_MATCH_PACK_STR
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OFP_MATCH_SIZE = 40
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assert calcsize(OFP_MATCH_PACK_STR) == OFP_MATCH_SIZE
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OFP_FLOW_PERMANENT = 0
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OFP_DEFAULT_PRIORITY = 0x8000
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# enum ofp_flow_mod_flags
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OFPFF_SEND_FLOW_REM = 1 << 0 # Send flow removed message when flow
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# expires or is deleted.
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OFPFF_CHECK_OVERLAP = 1 << 1 # Check for overlapping entries first.
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OFPFF_EMERG = 1 << 2 # Ramark this is for emergency.
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_OFP_FLOW_MOD_PACK_STR0 = 'QHHHHIHH'
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OFP_FLOW_MOD_PACK_STR = '!' + _OFP_MATCH_PACK_STR + _OFP_FLOW_MOD_PACK_STR0
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OFP_FLOW_MOD_PACK_STR0 = '!' + _OFP_FLOW_MOD_PACK_STR0
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OFP_FLOW_MOD_SIZE = 72
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assert calcsize(OFP_FLOW_MOD_PACK_STR) + OFP_HEADER_SIZE == OFP_FLOW_MOD_SIZE
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# enum ofp_flow_removed_reason
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OFPRR_IDLE_TIMEOUT = 0 # Flow idle time exceeded idle_timeout.
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OFPRR_HARD_TIMEOUT = 1 # Time exceeded hard_timeout.
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OFPRR_DELETE = 2 # Evicted by a DELETE flow mod.
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_OFP_FLOW_REMOVED_PACK_STR0 = 'QHBxIIH2xQQ'
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OFP_FLOW_REMOVED_PACK_STR = '!' + _OFP_MATCH_PACK_STR + \
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_OFP_FLOW_REMOVED_PACK_STR0
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OFP_FLOW_REMOVED_PACK_STR0 = '!' + _OFP_FLOW_REMOVED_PACK_STR0
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OFP_FLOW_REMOVED_SIZE = 88
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assert (calcsize(OFP_FLOW_REMOVED_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_FLOW_REMOVED_SIZE)
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# enum ofp_error_type
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OFPET_HELLO_FAILED = 0 # Hello protocol failed.
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OFPET_BAD_REQUEST = 1 # Request was not understood.
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OFPET_BAD_ACTION = 2 # Error in action description.
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OFPET_FLOW_MOD_FAILED = 3 # Problem modifying flow entry.
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OFPET_PORT_MOD_FAILED = 4 # OFPT_PORT_MOD failed.
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OFPET_QUEUE_OP_FAILED = 5 # Queue operation failed.
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# enum ofp_hello_failed_code
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OFPHFC_INCOMPATIBLE = 0 # No compatible version.
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OFPHFC_EPERM = 1 # Permissions error.
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# enum ofp_bad_request_code
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OFPBRC_BAD_VERSION = 0 # ofp_header.version not supported.
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OFPBRC_BAD_TYPE = 1 # ofp_header.type not supported.
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OFPBRC_BAD_STAT = 2 # ofp_stats_msg.type not supported.
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OFPBRC_BAD_VENDOR = 3 # Vendor not supported (in ofp_vendor_header
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# or ofp_stats_msg).
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OFPBRC_BAD_SUBTYPE = 4 # Vendor subtype not supported.
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OFPBRC_EPERM = 5 # Permissions error.
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OFPBRC_BAD_LEN = 6 # Wrong request length for type.
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OFPBRC_BUFFER_EMPTY = 7 # Specified buffer has already been used.
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OFPBRC_BUFFER_UNKNOWN = 8 # Specified buffer does not exist.
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# enum ofp_bad_action_code
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OFPBAC_BAD_TYPE = 0 # Unknown action type.
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OFPBAC_BAD_LEN = 1 # Length problem in actions.
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OFPBAC_BAD_VENDOR = 2 # Unknown vendor id specified.
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OFPBAC_BAD_VENDOR_TYPE = 3 # Unknown action type for vendor id.
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OFPBAC_BAD_OUT_PORT = 4 # Problem validating output action.
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OFPBAC_BAD_ARGUMENT = 5 # Bad action argument.
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OFPBAC_EPERM = 6 # Permissions error.
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OFPBAC_TOO_MANY = 7 # Can't handle this many actions.
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OFPBAC_BAD_QUEUE = 8 # Problem validating output queue.
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# enum ofp_flow_mod_failed_code
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OFPFMFC_ALL_TABLES_FULL = 0 # Flow not added because of full tables.
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OFPFMFC_OVERLAP = 1 # Attempted to add overlapping flow with
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# CHECK_OVERLAP flags set.
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OFPFMFC_EPERM = 2 # Permissions error.
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OFPFMFC_BAD_EMERG_TIMEOUT = 3 # Flow not added because of non-zero idle/hard
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# timeout.
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OFPFMFC_BAD_COMMAND = 4 # Unknown command.
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OFPFMFC_UNSUPPORTED = 5 # Unsupported action list - cannot process in
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# the order specified.
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# enum ofp_port_mod_failed_code
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OFPPMFC_BAD_PORT = 0 # Specified port does not exist.
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OFPPMFC_BAD_HW_ADDR = 1 # Specified hardware address is wrong.
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# enum ofp_queue_op_failed_code
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OFPQOFC_BAD_PORT = 0 # Invalid port (or port does not exist).
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OFPQOFC_BAD_QUEUE = 1 # Queue does not exist.
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OFPQOFC_EPERM = 2 # Permissions error.
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OFP_ERROR_MSG_PACK_STR = '!HH'
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OFP_ERROR_MSG_SIZE = 12
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assert calcsize(OFP_ERROR_MSG_PACK_STR) + OFP_HEADER_SIZE == OFP_ERROR_MSG_SIZE
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# enum ofp_stats_types
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OFPST_DESC = 0
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OFPST_FLOW = 1
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OFPST_AGGREGATE = 2
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OFPST_TABLE = 3
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OFPST_PORT = 4
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OFPST_QUEUE = 5
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OFPST_VENDOR = 0xffff
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_OFP_STATS_MSG_PACK_STR = 'HH'
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OFP_STATS_MSG_PACK_STR = '!' + _OFP_STATS_MSG_PACK_STR
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OFP_STATS_MSG_SIZE = 12
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assert calcsize(OFP_STATS_MSG_PACK_STR) + OFP_HEADER_SIZE == OFP_STATS_MSG_SIZE
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# enum ofp_stats_reply_flags
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OFPSF_REPLY_MORE = 1 << 0 # More replies to follow.
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# define constants
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DESC_STR_LEN = 256
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DESC_STR_LEN_STR = str(DESC_STR_LEN)
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SERIAL_NUM_LEN = 32
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SERIAL_NUM_LEN_STR = str(SERIAL_NUM_LEN)
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OFP_DESC_STATS_PACK_STR = '!' + \
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DESC_STR_LEN_STR + 's' + \
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DESC_STR_LEN_STR + 's' + \
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DESC_STR_LEN_STR + 's' + \
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SERIAL_NUM_LEN_STR + 's' + \
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DESC_STR_LEN_STR + 's'
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OFP_DESC_STATS_SIZE = 1068
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assert (calcsize(OFP_DESC_STATS_PACK_STR) + OFP_STATS_MSG_SIZE ==
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OFP_DESC_STATS_SIZE)
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_OFP_FLOW_STATS_REQUEST_ID_PORT_STR = 'BxH'
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OFP_FLOW_STATS_REQUEST_ID_PORT_STR = '!' + _OFP_FLOW_STATS_REQUEST_ID_PORT_STR
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OFP_FLOW_STATS_REQUEST_PACK_STR = '!' + _OFP_MATCH_PACK_STR + \
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_OFP_FLOW_STATS_REQUEST_ID_PORT_STR
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OFP_FLOW_STATS_REQUEST_SIZE = 56
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assert (calcsize(OFP_FLOW_STATS_REQUEST_PACK_STR) + OFP_STATS_MSG_SIZE ==
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OFP_FLOW_STATS_REQUEST_SIZE)
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_OFP_FLOW_STATS_0_PACK_STR = 'HBx'
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OFP_FLOW_STATS_0_PACK_STR = '!' + _OFP_FLOW_STATS_0_PACK_STR
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OFP_FLOW_STATS_0_SIZE = 4
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assert calcsize(OFP_FLOW_STATS_0_PACK_STR) == OFP_FLOW_STATS_0_SIZE
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_OFP_FLOW_STATS_1_PACK_STR = 'IIHHH6xQQQ'
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OFP_FLOW_STATS_1_PACK_STR = '!' + _OFP_FLOW_STATS_1_PACK_STR
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OFP_FLOW_STATS_1_SIZE = 44
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assert calcsize(OFP_FLOW_STATS_1_PACK_STR) == OFP_FLOW_STATS_1_SIZE
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OFP_FLOW_STATS_PACK_STR = '!' + _OFP_FLOW_STATS_0_PACK_STR +\
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_OFP_MATCH_PACK_STR + _OFP_FLOW_STATS_1_PACK_STR
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OFP_FLOW_STATS_SIZE = 88
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assert calcsize(OFP_FLOW_STATS_PACK_STR) == OFP_FLOW_STATS_SIZE
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OFP_AGGREGATE_STATS_REPLY_PACK_STR = '!QQI4x'
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OFP_AGGREGATE_STATS_REPLY_SIZE = 36
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assert (calcsize(OFP_AGGREGATE_STATS_REPLY_PACK_STR) +
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OFP_STATS_MSG_SIZE == OFP_AGGREGATE_STATS_REPLY_SIZE)
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OFP_TABLE_STATS_PACK_STR = '!B3x' + OFP_MAX_TABLE_NAME_LEN_STR + 'sIIIQQ'
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OFP_TABLE_STATS_SIZE = 64
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assert calcsize(OFP_TABLE_STATS_PACK_STR) == OFP_TABLE_STATS_SIZE
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OFP_PORT_STATS_REQUEST_PACK_STR = '!H6x'
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OFP_PORT_STATS_REQUEST_SIZE = 20
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assert (calcsize(OFP_PORT_STATS_REQUEST_PACK_STR) + OFP_STATS_MSG_SIZE ==
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OFP_PORT_STATS_REQUEST_SIZE)
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OFP_PORT_STATS_PACK_STR = '!H6xQQQQQQQQQQQQ'
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OFP_PORT_STATS_SIZE = 104
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assert calcsize(OFP_PORT_STATS_PACK_STR) == OFP_PORT_STATS_SIZE
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OFPQ_ALL = 0xffffffff
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OFP_QUEUE_STATS_REQUEST_PACK_STR = '!HxxI'
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OFP_QUEUE_STATS_REQUEST_SIZE = 8
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assert (calcsize(OFP_QUEUE_STATS_REQUEST_PACK_STR) ==
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OFP_QUEUE_STATS_REQUEST_SIZE)
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OFP_QUEUE_STATS_PACK_STR = '!H2xIQQQ'
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OFP_QUEUE_STATS_SIZE = 32
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assert calcsize(OFP_QUEUE_STATS_PACK_STR) == OFP_QUEUE_STATS_SIZE
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OFP_VENDOR_STATS_MSG_PACK_STR = '!I'
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OFP_VENDOR_STATS_MSG_SIZE = 16
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assert (calcsize(OFP_VENDOR_STATS_MSG_PACK_STR) + OFP_STATS_MSG_SIZE ==
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OFP_VENDOR_STATS_MSG_SIZE)
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OFP_VENDOR_HEADER_PACK_STR = '!I'
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OFP_VENDOR_HEADER_SIZE = 12
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assert (calcsize(OFP_VENDOR_HEADER_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_VENDOR_HEADER_SIZE)
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OFP_QUEUE_GET_CONFIG_REQUEST_PACK_STR = '!H2x'
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OFP_QUEUE_GET_CONFIG_REQUEST_SIZE = 12
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assert (calcsize(OFP_QUEUE_GET_CONFIG_REQUEST_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_QUEUE_GET_CONFIG_REQUEST_SIZE)
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OFP_QUEUE_GET_CONFIG_REPLY_PACK_STR = '!H6x'
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OFP_QUEUE_GET_CONFIG_REPLY_SIZE = 16
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assert (calcsize(OFP_QUEUE_GET_CONFIG_REPLY_PACK_STR) + OFP_HEADER_SIZE ==
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OFP_QUEUE_GET_CONFIG_REPLY_SIZE)
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OFP_PACKET_QUEUE_PQCK_STR = '!IH2x'
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OFP_PACKET_QUEUE_SIZE = 8
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assert calcsize(OFP_PACKET_QUEUE_PQCK_STR) == OFP_PACKET_QUEUE_SIZE
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OFPQT_NONE = 0
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OFPQT_MIN_RATE = 1
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OFP_QUEUE_PROP_HEADER_PACK_STR = '!HH4x'
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OFP_QUEUE_PROP_HEADER_SIZE = 8
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assert calcsize(OFP_QUEUE_PROP_HEADER_PACK_STR) == OFP_QUEUE_PROP_HEADER_SIZE
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OFP_QUEUE_PROP_MIN_RATE_PACK_STR = '!H6x'
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OFP_QUEUE_PROP_MIN_RATE_SIZE = 16
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assert (calcsize(OFP_QUEUE_PROP_MIN_RATE_PACK_STR) +
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OFP_QUEUE_PROP_HEADER_SIZE == OFP_QUEUE_PROP_MIN_RATE_SIZE)
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# OXM
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# enum ofp_oxm_class
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OFPXMC_OPENFLOW_BASIC = 0x8000 # Basic class for OpenFlow
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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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def oxm_tlv_header(field, length):
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return _oxm_tlv_header(OFPXMC_OPENFLOW_BASIC, field, 0, length)
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def oxm_tlv_header_w(field, length):
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return _oxm_tlv_header(OFPXMC_OPENFLOW_BASIC, field, 1, length * 2)
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def oxm_tlv_header_extract_hasmask(header):
|
|
return (header >> 8) & 1
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|
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|
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def oxm_tlv_header_extract_length(header):
|
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if oxm_tlv_header_extract_hasmask(header):
|
|
length = (header & 0xff) // 2
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else:
|
|
length = header & 0xff
|
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return length
|
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|
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|
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oxm_fields.generate(__name__)
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# generate utility methods
|
|
ofproto_utils.generate(__name__)
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