openflow1.0消息格式总结.docx

OpenFlow1.0消息格式总结NEU_张旭OpenFlow1.0消息格式总结：Controller OpenvswitchOFPT_HELLO OFPT_HELLOOFPT_ERROR OFPT_ERROROFPT_ECHO_REQUEST OFPT_ECHO_REPLYOFPT_VENDOR OFPT_VENDOROFPT_FEATURES_REQUEST OFPT_FEATURES_REPLYOFPT_GET_CONFIG_REQUEST OFPT_GET_CONFIG_REPLYOFPT_SET_CONFIGOFPT_PACKET_OUTOPPT_FLOW_MODOFPT_PORT_MOD OFPT_PACKET_IN OFPT_FLOW_REMOVED OFPT_PORT_STATUSOFPT_STATS_REQUEST OFPT_STATS_REPLYOFPT_QUEUE_GET_CONFIG_REQUEST OFPT_QUEUE_GET_CONFIG_REPLYOFPT_BARRIER_REQUEST OFPT_BARRIER_REPLYofp_header1、OFPT_FEATURES_REQUEST（8B）消息格式versiontypelength xiduint8_t version: OFP_VERSIONuint8_t type: One of the OFPT_ constantsuint16_t length: Length including this ofp_headeruint32_t xid: Transaction id associated with this packet.Replies use the same id as was in the request to facilitate pairing2、OFPT_FEATURES_REPLY（32B）=ofp_switch_featuresversiontypeofp_headerlengthxiddatapath_idn_buffersn_tablespad0pad1pad2capabilitiesactionsport_noofp_phy_porthw_addr nameconfigstatecurradvertisedsupportedpeeruint64_t datapath_id: Datapath unique ID.The lower 48-bits are for a MAC address, while the upper 16-bits are implementer-defineduint32_t n_buffers: Max packets buffered at onceuint8_t n_tables: Number of tables supported by datapathuint32_t capabilities: Bitmap of support ofp_capabilitiesuint32_t actions: Bitmap of supported ofp_action_typeuint16_t port_no:标明绑定到物理接口的datapath值uint8_t hw_addr6：该物理接口的mac地址char name16：该接口的名称字符串Null-terminated uint32_t config：Bitmap of OFPPC_* flagsuint32_t state：Bitmap of OFPPS_* flagsuint32_t curr：Current featuresuint32_t advertised：Features being advertised by the port uint32_t supported：Features supported by the portuint32_t peer：Features advertised by peer3、OFPT_GET_CONFIG_REQUEST（8B）versiontypeofp_headerlength xid4、OFPT_SET_CONFIG（12B）=ofp_switch_config OFPT_GET_CONFIG_REPLY（12B）versiontypeofp_headerlength xidflagsmiss_send_lenuint16_t flags: OFPC_* flagsuint16_t miss_send_len: Max bytes of new flow that datapath should send to the controller5、OFPT_PACKET_OUT（16B）versiontypeofp_headerlength xidbuffer_idin_portactions_lentypeofp_action_headerlenpad0pad1pad2pad3data0uint32_t buffer_id: ID assigned by datapath (-1 if none)uint16_t in_port: Packets input port (OFPP_NONE if none)uint16_t actions_len: Size of action array in bytesuint16_t type: One of OFPAT_*.uint16_t len: Length of action,including this header.This is the length of action,including any padding to make it 64-bit aligneduint8_t data0: Packet data.The length is inferred from the length field in the header.(Only meaningful if buffer_id = -1.)在这里总结所有类型的action ，我认为对于OFPT_PACKET_OUT应该用ofp_action_output来替换ofp_action_headerofp_action_output(8B)typeofp_action_outputlenportmax_lenuint16_t type: OFPAT_OUTPUTuint16_t len: Length is 8uint16_t port: Output portuint16_t max_len: Max length to send to controllerofp_action_vlan_vidofp_action_vlan_vid(8B)typelenvlan_vidpad0pad1uint16_t type: OFPAT_SET_VLAN_VIDuint16_t len: Length is 8uint16_t vlan_vid: VLAN idofp_action_vlan_pcpofp_action_vlan_pcp(8B)typelenvlan_pcppad0pad1pad2uint16_t type: OFPAT_SET_VLAN_PCPuint16_t len: Length is 8uint8_t vlan_pcp: VLAN priorityofp_action_dl_addrofp_action_dl_addr(16B)typelendl_addr6pad0pad1pad2pad3pad4pad5uint16_t type: OFPAT_SET_DL_SRC/DSTuint16_t len: Length is 16uint8_t dl_addr6: Ethernet addressofp_action_nw_addrofp_action_nw_addr(8B)typelennw_addruint16_t type: OFPAT_SET_TW_SRC/DSTuint16_t len: Length is 8uint32_t nw_addr: IP addressofp_action_tp_portofp_action_tp_port(8B)typelentp_portpad0pad1uint16_t type: OFPAT_SET_TP_SRC/DSTuint16_t len: Length is 8uint16_t tp_port: TCP/UDP portofp_action_nw_tosofp_action_nw_tos(8B)typelennw_tospad0pad1pad2uint16_t type: OFPAT_SET_TW_SRC/DSTuint16_t len: Length is 8uint8_t nw_tos: IP ToS (DSCP field, 6 bits)ofp_action_enqueueofp_action_enqueue(16B)typelenportpad0pad1pad2pad3pad4pad5queue_iduint16_t type: OFPAT_ENQUEUEuint16_t len: Length is 16uint16_t port: Port that queue belongs. Should refer to a valid physical port(i.e. OFPP_MAX) or OFPP_IN_PORTuint32_t queue_id: Where to enqueue the packetsofp_action_vendor_headerofp_action_vendor_header(8B)typelenvendoruint16_t type: OFPAT_VENDORuint16_t len: Length is a multiple of 8uint32_t vendor: Vendor ID, which takes the same form as in struct ofp_vendor_header6、OFPT_PORT_MOD（32B）versiontypeofp_headerlengthxidport_nohw_addrconfigmaskadvertisepad0pad1pad2pad3uint16_t port_no: 标明绑定到物理接口的datapath值uint8_t hw_addr6: The hardware address is not configurable.This is used to sanity-check the request, so it must be the same as returned in an ofp_phy_port structuint32_t config: Bitmap of OFPPC_* flagsuint32_t mask: Bitmap of OFPPC_* flags to be changeduint32_t advertise: Bitmap of ofp_port_featuress.Zero all bits to prevent any action taking place7、OFPT_FLOW_MOD（72B）versiontypeofp_headerlengthxidofp_match(40B)wildcardsin_portdl_srcdl_dstdl_vlandl_vlan_pcppad0dl_typenw_tosnw_protopad0pad1nw_srcnw_dsttp_srctp_dstcookiecommandidle_timeouthard_timeoutprioritybuffer_idout_portflagstypeofp_actions_headerlenpad0pad1pad2pad3uint32_t wildcards: Wildcard fieldsuint16_t in_port: Input switch portuint8_t dl_src6: Ethernet source addressuint8_t dl_dst6: Ethernet destination addressuint16_t dl_vlan: Input VLAN iduint8_t dl_vlan_pcp: Input VLAN priorityuint16_t dl_type: Ethernet frame typeuint8_t nw_tos: IP ToS (actually DSCP field, 6 bits)uint8_t nw_proto: IP protocol or lower 8 bits of ARP opcodeuint32_t nw_src: IP source addressuint32_t nw_dst: IP destination addressuint16_t tp_src: TCP/UDP source portuint16_t tp_dst: TCP/UDP destination portuint64_t cookie: Opaque controller-issued identifieruint16_t command: One of OFPFC_*uint16_t idle_timeout: Idle time before discarding secondsuint16_t hard_timeout: Max time before discarding secondsuint16_t priority: Priority level of flow entryuint32_t buffer_id: Buffered packet to apply to (or -1)Not meaningful for OFPFC_DELETE*uint16_t out_port: For OFPFC_DELETE* commands, require matching entries to include this as an output port. A value of OFPP_NONE indicates no restrictionuint16_t flags: One of OFPFF_*8、OFPT_FLOW_REMOVED（88B）versiontypeofp_headerlengthxidofp_match(40B)wildcardsin_portdl_srcdl_dstdl_vlandl_vlan_pcppad0dl_typenw_tosnw_protopad0pad1nw_srcnw_dsttp_srctp_dstcookiepriorityreasonpad0duration_secduration_nsecidle_timeoutpad0pad1packet_countbyte_countuint64_t cookie: Opaque controller-issued identifieruint16_t priority: Priority level of flow entryuint8_t reason: One of OFPRR_*uint32_t duration_sec: Time flow was alive in secondsuint32_t duration_nsec: Time flow was alive in nanoseconds beyond duration_secuint16_t idle_timeout: Idle timeout from original flow moduint64_t packet_count:计数与该流表项相关的包信息uint64_t byte_count：计数与该流表项相关的流量信息9、OFPT_PORT_STATUS（64B）versiontypeofp_headerlengthxidreasonpad0pad1pad2pad3pad4pad5pad6port_noofp_phy_port(48B)hw_addrnameconfigstatecurradvertisedsupportedpeeruint8_t reason: One of OFPPR_*10、OFPT_PACKET_IN（20B）versiontypeofp_headerlengthxidbuffer_idtotal_lenin_portreasonpaddata0uint32_t buffer_id: ID assigned by datapathuint16_t total_len: Full length of frameuint16_t in_port: Port on which frame was receiveduint8_t reason: Reason packet is being sent (one of OFPR_*)uint8_t data0: Ethernet frame,halfway through 32-bit word,so the IP header is 32-bit aligned.The amount of data is inferred from the length field in the header.Because of padding,offsetof(struct ofp_packet_in, data) = sizeof(struct ofp_packet_in) - 2.11、OFPT_QUEUE_GET_CONFIG_REQUEST（12B）versiontypeofp_headerlength xidportpad0pad1uint16_t port: Port to be queried. Should refer to a valid physical port (i.e. OFPP_MAX)12、OFPT_QUEUE_GET_CONFIG_REPLY（16B）versiontypeofp_headerlength xidportpad0pad1pad2pad3pad4pad5ofp_packet_queue(8B)queue_idlenpad0ofp_queue_prop_header(8B)pad1propertylenpad0pad1pad2pad3uint32_t queue_id: id for the specific queueuint16_t len: Length in bytes of this queue descuint16_t property: One of OFPQT_uint16_t len