1 /* $OpenBSD: ofp.h,v 1.15 2023/04/11 00:45:09 jsg Exp $ */ 2 3 /* 4 * Copyright (c) 2013-2016 Reyk Floeter <reyk@openbsd.org> 5 * Copyright (c) 2016 Kazuya GODA <goda@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef _NET_OFP_H_ 21 #define _NET_OFP_H_ 22 23 #include <sys/types.h> 24 #include <sys/socket.h> 25 26 #include <net/if.h> 27 #include <netinet/in.h> 28 #include <netinet/if_ether.h> 29 30 #define OFP_IFNAMSIZ 16 /* on-wire (not IF_NAMSIZE) */ 31 #define OFP_ALIGNMENT 8 /* OFP alignment */ 32 #define OFP_ALIGN(_x) (((_x) + (OFP_ALIGNMENT - 1)) & ~(OFP_ALIGNMENT - 1)) 33 34 struct ofp_header { 35 uint8_t oh_version; /* OpenFlow version */ 36 uint8_t oh_type; /* message type */ 37 uint16_t oh_length; /* message length */ 38 uint32_t oh_xid; /* transaction Id */ 39 } __packed; 40 41 /* OpenFlow version */ 42 #define OFP_V_0 0x00 /* OpenFlow 0.0 */ 43 #define OFP_V_1_0 0x01 /* OpenFlow 1.0 */ 44 #define OFP_V_1_1 0x02 /* OpenFlow 1.1 */ 45 #define OFP_V_1_2 0x03 /* OpenFlow 1.2 */ 46 #define OFP_V_1_3 0x04 /* OpenFlow 1.3 */ 47 #define OFP_V_1_4 0x05 /* OpenFlow 1.4 */ 48 #define OFP_V_1_5 0x06 /* OpenFlow 1.5 */ 49 50 /* OpenFlow message type */ 51 #define OFP_T_HELLO 0 /* Hello */ 52 #define OFP_T_ERROR 1 /* Error */ 53 #define OFP_T_ECHO_REQUEST 2 /* Echo Request */ 54 #define OFP_T_ECHO_REPLY 3 /* Echo Reply */ 55 #define OFP_T_EXPERIMENTER 4 /* Vendor/Experimenter */ 56 #define OFP_T_FEATURES_REQUEST 5 /* Features Request (switch) */ 57 #define OFP_T_FEATURES_REPLY 6 /* Features Reply (switch) */ 58 #define OFP_T_GET_CONFIG_REQUEST 7 /* Get Config Request (switch) */ 59 #define OFP_T_GET_CONFIG_REPLY 8 /* Get Config Reply (switch) */ 60 #define OFP_T_SET_CONFIG 9 /* Set Config (switch) */ 61 #define OFP_T_PACKET_IN 10 /* Packet In (async) */ 62 #define OFP_T_FLOW_REMOVED 11 /* Flow Removed (async) */ 63 #define OFP_T_PORT_STATUS 12 /* Port Status (async) */ 64 #define OFP_T_PACKET_OUT 13 /* Packet Out (controller) */ 65 #define OFP_T_FLOW_MOD 14 /* Flow Mod (controller) */ 66 #define OFP_T_GROUP_MOD 15 /* Group Mod (controller) */ 67 #define OFP_T_PORT_MOD 16 /* Port Mod (controller) */ 68 #define OFP_T_TABLE_MOD 17 /* Table Mod (controller) */ 69 #define OFP_T_MULTIPART_REQUEST 18 /* Multipart Message Request */ 70 #define OFP_T_MULTIPART_REPLY 19 /* Multipart Message Request */ 71 #define OFP_T_BARRIER_REQUEST 20 /* Barrier Request */ 72 #define OFP_T_BARRIER_REPLY 21 /* Barrier Reply */ 73 #define OFP_T_QUEUE_GET_CONFIG_REQUEST 22 /* Queue Get Config Request */ 74 #define OFP_T_QUEUE_GET_CONFIG_REPLY 23 /* Queue Get Config Reply */ 75 #define OFP_T_ROLE_REQUEST 24 /* Role Request */ 76 #define OFP_T_ROLE_REPLY 25 /* Role Reply */ 77 #define OFP_T_GET_ASYNC_REQUEST 26 /* Get Async Request */ 78 #define OFP_T_GET_ASYNC_REPLY 27 /* Get Async Reply */ 79 #define OFP_T_SET_ASYNC 28 /* Set Async */ 80 #define OFP_T_METER_MOD 29 /* Meter Mod */ 81 #define OFP_T_TYPE_MAX 30 82 83 /* OpenFlow Hello Message */ 84 struct ofp_hello_element_header { 85 uint16_t he_type; 86 uint16_t he_length; 87 } __packed; 88 89 #define OFP_HELLO_T_VERSION_BITMAP 1 /* Supported version bitmap */ 90 91 struct ofp_hello_element_versionbitmap { 92 uint16_t hev_type; 93 uint16_t hev_length; 94 } __packed; 95 96 /* Ports */ 97 #define OFP_PORT_MAX 0xffffff00 /* Maximum number of physical ports */ 98 #define OFP_PORT_INPUT 0xfffffff8 /* Send back to input port */ 99 #define OFP_PORT_FLOWTABLE 0xfffffff9 /* Perform actions in flow table */ 100 #define OFP_PORT_NORMAL 0xfffffffa /* Let switch decide */ 101 #define OFP_PORT_FLOOD 0xfffffffb /* All non-block ports except input */ 102 #define OFP_PORT_ALL 0xfffffffc /* All ports except input */ 103 #define OFP_PORT_CONTROLLER 0xfffffffd /* Send to controller */ 104 #define OFP_PORT_LOCAL 0xfffffffe /* Local virtual OpenFlow port */ 105 #define OFP_PORT_ANY 0xffffffff /* No port */ 106 107 /* Switch Config Message (reply) */ 108 struct ofp_switch_config { 109 struct ofp_header cfg_oh; /* OpenFlow header */ 110 uint16_t cfg_flags; /* Configuration flags */ 111 uint16_t cfg_miss_send_len; /* Max bytes from datapath */ 112 } __packed; 113 114 /* Switch Config */ 115 #define OFP_CONFIG_FRAG_NORMAL 0x0000 /* No special frag handling */ 116 #define OFP_CONFIG_FRAG_DROP 0x0001 /* Drop fragments */ 117 #define OFP_CONFIG_FRAG_REASM 0x0002 /* Reassemble fragments */ 118 #define OFP_CONFIG_FRAG_MASK 0x0003 /* Fragment mask */ 119 120 /* Switch port description */ 121 struct ofp_switch_port { 122 uint32_t swp_number; /* Switch port number */ 123 uint8_t swp_pad[4]; /* Padding */ 124 uint8_t swp_macaddr[ETHER_ADDR_LEN]; /* Port MAC address */ 125 uint8_t swp_pad2[2]; /* Padding */ 126 char swp_name[OFP_IFNAMSIZ]; /* Switch port name */ 127 uint32_t swp_config; /* Configuration flags */ 128 uint32_t swp_state; /* State flags */ 129 uint32_t swp_cur; /* Current features */ 130 uint32_t swp_advertised; /* Advertised by the port */ 131 uint32_t swp_supported; /* Supported by the port */ 132 uint32_t swp_peer; /* Advertised by peer */ 133 uint32_t swp_cur_speed; /* Current port speed in Kbps*/ 134 uint32_t swp_max_speed; /* Support port max speed in Kbps*/ 135 } __packed; 136 137 /* Physical port configuration */ 138 #define OFP_PORTCONFIG_PORT_DOWN 0x1 /* Port is down */ 139 #define OFP_PORTCONFIG_NO_STP 0x2 /* Disable STP on port */ 140 #define OFP_PORTCONFIG_NO_RECV 0x4 /* Drop everything except STP */ 141 #define OFP_PORTCONFIG_NO_RECV_STP 0x8 /* Drop received STP */ 142 #define OFP_PORTCONFIG_NO_FLOOD 0x10 /* Do not flood to this port */ 143 #define OFP_PORTCONFIG_NO_FWD 0x20 /* Drop packets to port */ 144 #define OFP_PORTCONFIG_NO_PACKET_IN 0x40 /* NO PACKET_IN on port */ 145 146 /* Physical port state */ 147 #define OFP_PORTSTATE_LINK_DOWN 0x1 /* Link not active */ 148 #define OFP_PORTSTATE_STP_LISTEN 0x000 /* Not learning or forwarding */ 149 #define OFP_PORTSTATE_STP_LEARN 0x100 /* Learning but not forwarding */ 150 #define OFP_PORTSTATE_STP_FORWARD 0x200 /* Learning and forwarding */ 151 #define OFP_PORTSTATE_STP_BLOCK 0x300 /* Not part of spanning tree */ 152 #define OFP_PORTSTATE_STP_MASK 0x300 /* Spanning tree values */ 153 154 /* Physical port media types */ 155 #define OFP_PORTMEDIA_10MB_HD 0x1 /* 10 Mb half-duplex */ 156 #define OFP_PORTMEDIA_10MB_FD 0x2 /* 10 Mb full-duplex */ 157 #define OFP_PORTMEDIA_100MB_HD 0x4 /* 100 Mb half-duplex */ 158 #define OFP_PORTMEDIA_100MB_FD 0x8 /* 100 Mb full-duplex */ 159 #define OFP_PORTMEDIA_1GB_HD 0x10 /* 1 Gb half-duplex */ 160 #define OFP_PORTMEDIA_1GB_FD 0x20 /* 1 Gb full-duplex */ 161 #define OFP_PORTMEDIA_10GB_FD 0x40 /* 10 Gb full-duplex */ 162 #define OFP_PORTMEDIA_COPPER 0x80 /* Copper */ 163 #define OFP_PORTMEDIA_FIBER 0x100 /* Fiber */ 164 #define OFP_PORTMEDIA_AUTONEG 0x200 /* Auto-negotiation */ 165 #define OFP_PORTMEDIA_PAUSE 0x400 /* Pause */ 166 #define OFP_PORTMEDIA_PAUSE_ASYM 0x800 /* Asymmetric pause */ 167 168 /* Switch Features Message (reply) */ 169 struct ofp_switch_features { 170 struct ofp_header swf_oh; /* OpenFlow header */ 171 uint64_t swf_datapath_id; /* Datapath unique ID */ 172 uint32_t swf_nbuffers; /* Max packets buffered */ 173 uint8_t swf_ntables; /* Number of supported tables */ 174 uint8_t swf_aux_id; /* Identify auxiliary connections */ 175 uint8_t swf_pad[2]; /* Align to 64 bits */ 176 uint32_t swf_capabilities; /* Capability flags */ 177 uint32_t swf_actions; /* Supported action flags */ 178 } __packed; 179 180 /* Switch capabilities */ 181 #define OFP_SWCAP_FLOW_STATS 0x1 /* Flow statistics */ 182 #define OFP_SWCAP_TABLE_STATS 0x2 /* Table statistics */ 183 #define OFP_SWCAP_PORT_STATS 0x4 /* Port statistics */ 184 #define OFP_SWCAP_GROUP_STATS 0x8 /* Group statistics */ 185 #define OFP_SWCAP_IP_REASM 0x20 /* Can reassemble IP frags */ 186 #define OFP_SWCAP_QUEUE_STATS 0x40 /* Queue statistics */ 187 #define OFP_SWCAP_ARP_MATCH_IP 0x80 /* Match IP addresses in ARP pkts */ 188 #define OFP_SWCAP_PORT_BLOCKED 0x100 /* Switch will block ports */ 189 190 /* Flow matching */ 191 struct ofp_match { 192 uint16_t om_type; 193 uint16_t om_length; 194 } __packed; 195 196 /* Flow matching type */ 197 #define OFP_MATCH_STANDARD 0 /* Standard match deprecated */ 198 #define OFP_MATCH_OXM 1 /* OpenFlow Extensible Match */ 199 200 /* Packet-In Message */ 201 struct ofp_packet_in { 202 struct ofp_header pin_oh; /* OpenFlow header */ 203 uint32_t pin_buffer_id; 204 uint16_t pin_total_len; 205 uint8_t pin_reason; 206 uint8_t pin_table_id; 207 uint64_t pin_cookie; 208 struct ofp_match pin_match; 209 } __packed; 210 211 /* Reason */ 212 #define OFP_PKTIN_REASON_NO_MATCH 0 /* No matching flow */ 213 #define OFP_PKTIN_REASON_ACTION 1 /* Explicit output */ 214 #define OFP_PKTIN_REASON_TTL 2 /* Packet has invalid TTL */ 215 216 /* Flow Instruction */ 217 struct ofp_instruction { 218 uint16_t i_type; 219 uint16_t i_len; 220 } __packed; 221 222 /* Instruction types */ 223 #define OFP_INSTRUCTION_T_GOTO_TABLE 1 /* Goto-Table */ 224 #define OFP_INSTRUCTION_T_WRITE_META 2 /* Write-Metadata */ 225 #define OFP_INSTRUCTION_T_WRITE_ACTIONS 3 /* Write-Actions */ 226 #define OFP_INSTRUCTION_T_APPLY_ACTIONS 4 /* Apply-Actions */ 227 #define OFP_INSTRUCTION_T_CLEAR_ACTIONS 5 /* Clear-Actions */ 228 #define OFP_INSTRUCTION_T_METER 6 /* Meter */ 229 #define OFP_INSTRUCTION_T_EXPERIMENTER 0xffff /* Experimenter */ 230 231 /* Write-Metadata instruction */ 232 struct ofp_instruction_write_metadata { 233 uint16_t iwm_type; 234 uint16_t iwm_len; 235 uint8_t iwm_pad[4]; 236 uint64_t iwm_metadata; 237 uint64_t iwm_metadata_mask; 238 } __packed; 239 240 /* Goto-Table instruction */ 241 struct ofp_instruction_goto_table { 242 uint16_t igt_type; 243 uint16_t igt_len; 244 uint8_t igt_table_id; 245 uint8_t igt_pad[3]; 246 } __packed; 247 248 /* Apply-Actions instruction */ 249 struct ofp_instruction_actions { 250 uint16_t ia_type; 251 uint16_t ia_len; 252 uint8_t ia_pad[4]; 253 } __packed; 254 255 /* Meter instruction */ 256 struct ofp_instruction_meter { 257 uint16_t im_type; 258 uint16_t im_len; 259 uint32_t im_meter_id; 260 } __packed; 261 262 /* Experimenter instruction */ 263 struct ofp_instruction_experimenter { 264 uint16_t ie_type; 265 uint16_t ie_len; 266 uint32_t ie_experimenter; 267 } __packed; 268 269 /* Actions */ 270 #define OFP_ACTION_OUTPUT 0 /* Output to switch port */ 271 #define OFP_ACTION_COPY_TTL_OUT 11 /* Copy TTL outwards */ 272 #define OFP_ACTION_COPY_TTL_IN 12 /* Copy TTL inwards */ 273 #define OFP_ACTION_SET_MPLS_TTL 15 /* MPLS TTL */ 274 #define OFP_ACTION_DEC_MPLS_TTL 16 /* Decrement MPLS TTL */ 275 #define OFP_ACTION_PUSH_VLAN 17 /* Push a new VLAN tag */ 276 #define OFP_ACTION_POP_VLAN 18 /* Pop the outer VLAN tag */ 277 #define OFP_ACTION_PUSH_MPLS 19 /* Push a new MPLS tag */ 278 #define OFP_ACTION_POP_MPLS 20 /* Pop the outer MPLS tag */ 279 #define OFP_ACTION_SET_QUEUE 21 /* Set queue id when outputting to a port */ 280 #define OFP_ACTION_GROUP 22 /* Apply group */ 281 #define OFP_ACTION_SET_NW_TTL 23 /* Set IP TTL */ 282 #define OFP_ACTION_DEC_NW_TTL 24 /* Decrement IP TTL */ 283 #define OFP_ACTION_SET_FIELD 25 /* Set a header field using OXM TLV format */ 284 #define OFP_ACTION_PUSH_PBB 26 /* Push a new PBB service tag (I-TAG) */ 285 #define OFP_ACTION_POP_PBB 27 /* Pop the outer PBB service tag (I-TAG) */ 286 #define OFP_ACTION_EXPERIMENTER 0xffff /* Vendor-specific action */ 287 288 /* Action Header */ 289 struct ofp_action_header { 290 uint16_t ah_type; 291 uint16_t ah_len; 292 uint32_t ah_pad; 293 } __packed; 294 295 /* Output Action */ 296 struct ofp_action_output { 297 uint16_t ao_type; 298 uint16_t ao_len; 299 uint32_t ao_port; 300 uint16_t ao_max_len; 301 uint8_t ao_pad[6]; 302 } __packed; 303 304 /* Buffer configuration */ 305 #define OFP_CONTROLLER_MAXLEN_MAX 0xffe5 /* maximum buffer length */ 306 #define OFP_CONTROLLER_MAXLEN_NO_BUFFER 0xffff /* don't do any buffering */ 307 308 struct ofp_action_mpls_ttl { 309 uint16_t amt_type; 310 uint16_t amt_len; 311 uint8_t amt_ttl; 312 uint8_t amt_pad[3]; 313 } __packed; 314 315 struct ofp_action_push { 316 uint16_t ap_type; 317 uint16_t ap_len; 318 uint16_t ap_ethertype; 319 uint8_t ap_pad[2]; 320 } __packed; 321 322 struct ofp_action_pop_mpls { 323 uint16_t apm_type; 324 uint16_t apm_len; 325 uint16_t apm_ethertype; 326 uint8_t apm_pad[2]; 327 } __packed; 328 329 struct ofp_action_group { 330 uint16_t ag_type; 331 uint16_t ag_len; 332 uint32_t ag_group_id; 333 } __packed; 334 335 struct ofp_action_nw_ttl { 336 uint16_t ant_type; 337 uint16_t ant_len; 338 uint8_t ant_ttl; 339 uint8_t ant_pad[3]; 340 } __packed; 341 342 struct ofp_action_set_field { 343 uint16_t asf_type; 344 uint16_t asf_len; 345 uint8_t asf_field[4]; 346 } __packed; 347 348 struct ofp_action_set_queue { 349 uint16_t asq_type; 350 uint16_t asq_len; 351 uint32_t asq_queue_id; 352 } __packed; 353 354 /* Packet-Out Message */ 355 struct ofp_packet_out { 356 struct ofp_header pout_oh; /* OpenFlow header */ 357 uint32_t pout_buffer_id; 358 uint32_t pout_in_port; 359 uint16_t pout_actions_len; 360 uint8_t pout_pad[6]; 361 struct ofp_action_header pout_actions[0]; 362 /* Followed by optional packet data if buffer_id == 0xffffffff */ 363 } __packed; 364 365 /* Special buffer id */ 366 #define OFP_PKTOUT_NO_BUFFER 0xffffffff /* No buffer id */ 367 368 /* Flow match fields for basic class */ 369 #define OFP_XM_T_IN_PORT 0 /* Switch input port */ 370 #define OFP_XM_T_IN_PHY_PORT 1 /* Switch physical input port */ 371 #define OFP_XM_T_META 2 /* Metadata passed between tables */ 372 #define OFP_XM_T_ETH_DST 3 /* Ethernet destination address */ 373 #define OFP_XM_T_ETH_SRC 4 /* Ethernet source address */ 374 #define OFP_XM_T_ETH_TYPE 5 /* Ethernet frame type */ 375 #define OFP_XM_T_VLAN_VID 6 /* VLAN id */ 376 #define OFP_XM_T_VLAN_PCP 7 /* VLAN priority */ 377 #define OFP_XM_T_IP_DSCP 8 /* IP DSCP (6 bits in ToS field) */ 378 #define OFP_XM_T_IP_ECN 9 /* IP ECN (2 bits in ToS field) */ 379 #define OFP_XM_T_IP_PROTO 10 /* IP protocol */ 380 #define OFP_XM_T_IPV4_SRC 11 /* IPv4 source address */ 381 #define OFP_XM_T_IPV4_DST 12 /* IPv4 destination address */ 382 #define OFP_XM_T_TCP_SRC 13 /* TCP source port */ 383 #define OFP_XM_T_TCP_DST 14 /* TCP destination port */ 384 #define OFP_XM_T_UDP_SRC 15 /* UDP source port */ 385 #define OFP_XM_T_UDP_DST 16 /* UDP destination port */ 386 #define OFP_XM_T_SCTP_SRC 17 /* SCTP source port */ 387 #define OFP_XM_T_SCTP_DST 18 /* SCTP destination port */ 388 #define OFP_XM_T_ICMPV4_TYPE 19 /* ICMP type */ 389 #define OFP_XM_T_ICMPV4_CODE 20 /* ICMP code */ 390 #define OFP_XM_T_ARP_OP 21 /* ARP opcode */ 391 #define OFP_XM_T_ARP_SPA 22 /* ARP source IPv4 address */ 392 #define OFP_XM_T_ARP_TPA 23 /* ARP target IPv4 address */ 393 #define OFP_XM_T_ARP_SHA 24 /* ARP source hardware address */ 394 #define OFP_XM_T_ARP_THA 25 /* ARP target hardware address */ 395 #define OFP_XM_T_IPV6_SRC 26 /* IPv6 source address */ 396 #define OFP_XM_T_IPV6_DST 27 /* IPv6 destination address */ 397 #define OFP_XM_T_IPV6_FLABEL 28 /* IPv6 Flow Label */ 398 #define OFP_XM_T_ICMPV6_TYPE 29 /* ICMPv6 type */ 399 #define OFP_XM_T_ICMPV6_CODE 30 /* ICMPv6 code */ 400 #define OFP_XM_T_IPV6_ND_TARGET 31 /* Target address for ND */ 401 #define OFP_XM_T_IPV6_ND_SLL 32 /* Source link-layer for ND */ 402 #define OFP_XM_T_IPV6_ND_TLL 33 /* Target link-layer for ND */ 403 #define OFP_XM_T_MPLS_LABEL 34 /* MPLS label */ 404 #define OFP_XM_T_MPLS_TC 35 /* MPLS TC */ 405 #define OFP_XM_T_MPLS_BOS 36 /* MPLS BoS bit */ 406 #define OFP_XM_T_PBB_ISID 37 /* PBB I-SID */ 407 #define OFP_XM_T_TUNNEL_ID 38 /* Logical Port Metadata */ 408 #define OFP_XM_T_IPV6_EXTHDR 39 /* IPv6 Extension Header pseudo-field */ 409 #define OFP_XM_T_MAX 40 410 411 /* Flow match fields for nxm1 class */ 412 #define OFP_XM_NXMT_TUNNEL_ID 38 /* Tunnel Logical Port Metadata */ 413 #define OFP_XM_NXMT_TUNNEL_IPV4_SRC 31 /* Tunnel IPv4 source address */ 414 #define OFP_XM_NXMT_TUNNEL_IPV4_DST 32 /* Tunnel IPv4 destination address */ 415 #define OFP_XM_NXMT_TUNNEL_IPV6_SRC 109 /* Tunnel IPv6 source address */ 416 #define OFP_XM_NXMT_TUNNEL_IPV6_DST 110 /* Tunnel IPv6 destination address */ 417 418 /* OXM class */ 419 #define OFP_OXM_C_NXM_0 0x0000 /* NXM 0 */ 420 #define OFP_OXM_C_NXM_1 0x0001 /* NXM 1 */ 421 #define OFP_OXM_C_OPENFLOW_BASIC 0x8000 /* OpenFlow Basic */ 422 #define OFP_OXM_C_OPENFLOW_EXPERIMENTER 0xffff /* OpenFlow Experimenter */ 423 424 /* VLAN matching flag */ 425 #define OFP_XM_VID_PRESENT 0x1000 /* VLAN ID present */ 426 #define OFP_XM_VID_NONE 0x0000 /* No VLAN ID */ 427 428 /* IPv6 Extension header pseudo-field flags */ 429 #define OFP_XM_IPV6_EXTHDR_NONEXT 0x0001 /* "No next header" encountered */ 430 #define OFP_XM_IPV6_EXTHDR_ESP 0x0002 /* Encrypted Sec Payload header present */ 431 #define OFP_XM_IPV6_EXTHDR_AUTH 0x0004 /* Authentication header present. */ 432 #define OFP_XM_IPV6_EXTHDR_DEST 0x0008 /* 1 or 2 dest headers present. */ 433 #define OFP_XM_IPV6_EXTHDR_FRAG 0x0010 /* Fragment header present. */ 434 #define OFP_XM_IPV6_EXTHDR_ROUTER 0x0020 /* Router header present. */ 435 #define OFP_XM_IPV6_EXTHDR_HOP 0x0040 /* Hop-by-hop header present. */ 436 #define OFP_XM_IPV6_EXTHDR_UNREP 0x0080 /* Unexpected repeats encountered. */ 437 #define OFP_XM_IPV6_EXTHDR_UNSEQ 0x0100 /* Unexpected sequencing encountered. */ 438 439 struct ofp_ox_match { 440 uint16_t oxm_class; 441 uint8_t oxm_fh; 442 uint8_t oxm_length; 443 uint8_t oxm_value[0]; 444 } __packed; 445 446 #define OFP_OXM_GET_FIELD(o) (((o)->oxm_fh) >> 1) 447 #define OFP_OXM_GET_HASMASK(o) (((o)->oxm_fh) & 0x1) 448 #define OFP_OXM_SET_FIELD(o, t) (((o)->oxm_fh) = ((t) << 1)) 449 #define OFP_OXM_SET_HASMASK(o) (((o)->oxm_fh) |= 0x1) 450 451 /* Flow modification commands */ 452 #define OFP_FLOWCMD_ADD 0 /* Add new flow */ 453 #define OFP_FLOWCMD_MODIFY 1 /* Modify flow */ 454 #define OFP_FLOWCMD_MODIFY_STRICT 2 /* Modify flow w/o wildcard */ 455 #define OFP_FLOWCMD_DELETE 3 /* Delete flow */ 456 #define OFP_FLOWCMD_DELETE_STRICT 4 /* Delete flow w/o wildcard */ 457 458 /* Flow modification flags */ 459 #define OFP_FLOWFLAG_SEND_FLOW_REMOVED 0x0001 /* Send flow removed message */ 460 #define OFP_FLOWFLAG_CHECK_OVERLAP 0x0002 /* Check flow overlap first */ 461 #define OFP_FLOWFLAG_RESET_COUNTS 0x0004 /* Reset flow packet and byte counters */ 462 #define OFP_FLOWFLAG_NO_PACKET_COUNTS 0x0008 /* Don't keep track of packet count */ 463 #define OFP_FLOWFLAG_NO_BYTE_COUNTS 0x0010 /* Don't keep track of byte count */ 464 465 /* Flow modification message */ 466 struct ofp_flow_mod { 467 struct ofp_header fm_oh; /* OpenFlow header */ 468 uint64_t fm_cookie; 469 uint64_t fm_cookie_mask; 470 uint8_t fm_table_id; 471 uint8_t fm_command; 472 uint16_t fm_idle_timeout; 473 uint16_t fm_hard_timeout; 474 uint16_t fm_priority; 475 uint32_t fm_buffer_id; 476 uint32_t fm_out_port; 477 uint32_t fm_out_group; 478 uint16_t fm_flags; 479 uint8_t fm_pad[2]; 480 struct ofp_match fm_match; 481 } __packed; 482 483 /* Flow removed reasons */ 484 #define OFP_FLOWREM_REASON_IDLE_TIMEOUT 0 /* Flow idle time exceeded idle_timeout */ 485 #define OFP_FLOWREM_REASON_HARD_TIMEOUT 1 /* Time exceeded hard_timeout */ 486 #define OFP_FLOWREM_REASON_DELETE 2 /* Evicted by a DELETE flow mod */ 487 #define OFP_FLOWREM_REASON_GROUP_DELETE 3 /* Group was removed */ 488 489 /* Flow removed message */ 490 struct ofp_flow_removed { 491 struct ofp_header fr_oh; 492 uint64_t fr_cookie; 493 uint16_t fr_priority; 494 uint8_t fr_reason; 495 uint8_t fr_table_id; 496 uint32_t fr_duration_sec; 497 uint32_t fr_duration_nsec; 498 uint16_t fr_idle_timeout; 499 uint16_t fr_hard_timeout; 500 uint64_t fr_packet_count; 501 uint64_t fr_byte_count; 502 struct ofp_match fr_match; 503 } __packed; 504 505 /* Error message */ 506 struct ofp_error { 507 struct ofp_header err_oh; 508 uint16_t err_type; 509 uint16_t err_code; 510 uint8_t err_data[0]; 511 /* Followed by optional data */ 512 } __packed; 513 #define OFP_ERRDATA_MAX 64 514 515 /* Error types */ 516 #define OFP_ERRTYPE_HELLO_FAILED 0 /* Hello protocol failed */ 517 #define OFP_ERRTYPE_BAD_REQUEST 1 /* Request was not understood */ 518 #define OFP_ERRTYPE_BAD_ACTION 2 /* Error in action */ 519 #define OFP_ERRTYPE_BAD_INSTRUCTION 3 /* Error in instruction list */ 520 #define OFP_ERRTYPE_BAD_MATCH 4 /* Error in match */ 521 #define OFP_ERRTYPE_FLOW_MOD_FAILED 5 /* Problem modifying flow */ 522 #define OFP_ERRTYPE_GROUP_MOD_FAILED 6 /* Problem modifying group */ 523 #define OFP_ERRTYPE_PORT_MOD_FAILED 7 /* Port mod request failed */ 524 #define OFP_ERRTYPE_TABLE_MOD_FAILED 8 /* Port mod request failed */ 525 #define OFP_ERRTYPE_QUEUE_OP_FAILED 9 /* Queue operation failed */ 526 #define OFP_ERRTYPE_SWITCH_CFG_FAILED 10 /* Switch Config request failed */ 527 #define OFP_ERRTYPE_ROLE_REQUEST_FAILED 11 /* Controller role request failed */ 528 #define OFP_ERRTYPE_METER_MOD_FAILED 12 /* Error in meter */ 529 #define OFP_ERRTYPE_TABLE_FEATURES_FAILED 13 /* Setting table features failed */ 530 #define OFP_ERRTYPE_EXPERIMENTER 0xffff /* Experimenter error message */ 531 532 /* HELLO error codes */ 533 #define OFP_ERRHELLO_INCOMPATIBLE 0 /* No compatible version */ 534 #define OFP_ERRHELLO_EPERM 1 /* Permissions error */ 535 536 /* REQUEST error codes */ 537 #define OFP_ERRREQ_VERSION 0 /* Version not supported */ 538 #define OFP_ERRREQ_TYPE 1 /* Type not supported */ 539 #define OFP_ERRREQ_MULTIPART 2 /* Multipart type not supported */ 540 #define OFP_ERRREQ_EXPERIMENTER 3 /* Experimenter id not supported */ 541 #define OFP_ERRREQ_EXP_TYPE 4 /* Experimenter type not supported */ 542 #define OFP_ERRREQ_EPERM 5 /* Permission error */ 543 #define OFP_ERRREQ_BAD_LEN 6 /* Wrong request length for type */ 544 #define OFP_ERRREQ_BUFFER_EMPTY 7 /* Specified buffer has already been used */ 545 #define OFP_ERRREQ_BUFFER_UNKNOWN 8 /* Specified buffer does not exist */ 546 #define OFP_ERRREQ_TABLE_ID 9 /* Specified table-id invalid or does not exit */ 547 #define OFP_ERRREQ_IS_SLAVE 10 /* Denied because controller is slave */ 548 #define OFP_ERRREQ_PORT 11 /* Invalid port */ 549 #define OFP_ERRREQ_PACKET 12 /* Invalid packet in packet-out */ 550 #define OFP_ERRREQ_MULTIPART_OVERFLOW 13 /* Multipart overflowed the assigned buffer */ 551 552 /* ACTION error codes */ 553 #define OFP_ERRACTION_TYPE 0 /* Unknown or unsupported action type */ 554 #define OFP_ERRACTION_LEN 1 /* Length problem in actions */ 555 #define OFP_ERRACTION_EXPERIMENTER 2 /* Unknown experimenter id specified */ 556 #define OFP_ERRACTION_EXP_TYPE 3 /* Unknown action for experimenter id */ 557 #define OFP_ERRACTION_OUT_PORT 4 /* Problem validating output port */ 558 #define OFP_ERRACTION_ARGUMENT 5 /* Bad action argument */ 559 #define OFP_ERRACTION_EPERM 6 /* Permission error */ 560 #define OFP_ERRACTION_TOO_MANY 7 /* Can't handle this many actions */ 561 #define OFP_ERRACTION_BAD_QUEUE 8 /* Problem validating output queue */ 562 #define OFP_ERRACTION_BAD_OUT_GROUP 9 /* Invalid group id in forward action */ 563 #define OFP_ERRACTION_MATCH_INCONSISTENT 10 /* Action can't apply or Set-Field failed */ 564 #define OFP_ERRACTION_UNSUPPORTED_ORDER 11 /* Action order is unsupported for Apply-Actions */ 565 #define OFP_ERRACTION_TAG 12 /* Actions uses an unsupported tag/encap */ 566 #define OFP_ERRACTION_SET_TYPE 13 /* Unsupported type in SET_FIELD action */ 567 #define OFP_ERRACTION_SET_LEN 14 /* Length problem in SET_FIELD action */ 568 #define OFP_ERRACTION_SET_ARGUMENT 15 /* Bad argument in SET_FIELD action */ 569 570 /* INSTRUCTION error codes */ 571 #define OFP_ERRINST_UNKNOWN_INST 0 /* Unknown instruction */ 572 #define OFP_ERRINST_UNSUPPORTED_INST 1 /* Switch or table does not support */ 573 #define OFP_ERRINST_TABLE_ID 2 /* Invalid Table-ID specified */ 574 #define OFP_ERRINST_UNSUPP_META 3 /* Metadata value unsupported by datapath */ 575 #define OFP_ERRINST_UNSUPP_META_MASK 4 /* Metadata mask value unsupported by datapath */ 576 #define OFP_ERRINST_BAD_EXPERIMENTER 5 /* Unknown experimenter id specified */ 577 #define OFP_ERRINST_BAD_EXPERIMENTER_TYPE 6 /* Unknown instruction for experimenter id */ 578 #define OFP_ERRINST_BAD_LEN 7 /* Length problem in instructions */ 579 #define OFP_ERRINST_EPERM 8 /* Permissions error */ 580 581 /* MATCH error codes */ 582 #define OFP_ERRMATCH_BAD_TYPE 0 /* Unsupported match type */ 583 #define OFP_ERRMATCH_BAD_LEN 1 /* Length problem in match */ 584 #define OFP_ERRMATCH_BAD_TAG 2 /* Match uses an unsupported tag/encap */ 585 #define OFP_ERRMATCH_BAD_DL_ADDR_MASK 3 /* Unsupported datalink addr mask */ 586 #define OFP_ERRMATCH_BAD_NW_ADDR_MASK 4 /* Unsupported network addr mask */ 587 #define OFP_ERRMATCH_BAD_WILDCARDS 5 /* Unsupported combination of fields */ 588 #define OFP_ERRMATCH_BAD_FIELD 6 /* Unsupported field type in the match */ 589 #define OFP_ERRMATCH_BAD_VALUE 7 /* Unsupported value in a match field */ 590 #define OFP_ERRMATCH_BAD_MASK 8 /* Unsupported mask specified in match */ 591 #define OFP_ERRMATCH_BAD_PREREQ 9 /* A prerequisite was not met */ 592 #define OFP_ERRMATCH_DUP_FIELD 10 /* A field type was duplicated */ 593 #define OFP_ERRMATCH_EPERM 11 /* Permissions error */ 594 595 /* FLOW MOD error codes */ 596 #define OFP_ERRFLOWMOD_UNKNOWN 0 /* Unknown */ 597 #define OFP_ERRFLOWMOD_TABLE_FULL 1 /* Table is full */ 598 #define OFP_ERRFLOWMOD_TABLE_ID 2 /* Invalid table id */ 599 #define OFP_ERRFLOWMOD_OVERLAP 3 /* Overlapping flow */ 600 #define OFP_ERRFLOWMOD_EPERM 4 /* Permissions error */ 601 #define OFP_ERRFLOWMOD_BAD_TIMEOUT 5 /* non-zero idle/hard timeout */ 602 #define OFP_ERRFLOWMOD_BAD_COMMAND 6 /* Unsupported or Unknown command */ 603 #define OFP_ERRFLOWMOD_BAD_FLAGS 7 /* Unsupported or Unknown flags */ 604 605 /* GROUP MOD error codes */ 606 #define OFP_ERRGROUPMOD_GROUP_EXISTS 0 /* Already present group */ 607 #define OFP_ERRGROUPMOD_INVALID_GROUP 1 /* Group specified is invalid */ 608 #define OFP_ERRGROUPMOD_WEIGHT_UNSUPP 2 /* Switch does not support unequal load sharing */ 609 #define OFP_ERRGROUPMOD_OUT_OF_GROUPS 3 /* The Group table is full */ 610 #define OFP_ERRGROUPMOD_OUT_OF_BUCKETS 4 /* The maximum number of action buckets */ 611 #define OFP_ERRGROUPMOD_CHAINING_UNSUPP 5 /* Switch does not support groups forwarding to groups */ 612 #define OFP_ERRGROUPMOD_WATCH_UNSUPP 6 /* This group cannot watch the watch_port */ 613 #define OFP_ERRGROUPMOD_LOOP 7 /* Group entry would cause a loop */ 614 #define OFP_ERRGROUPMOD_UNKNOWN_GROUP 8 /* MODIFY attempted to modify a non-existent group */ 615 #define OFP_ERRGROUPMOD_CHAINED_GROUP 9 /* Group not deleted because another group is forwarding to it */ 616 #define OFP_ERRGROUPMOD_BAD_TYPE 10 /* Unsupported or unknown group type */ 617 #define OFP_ERRGROUPMOD_BAD_COMMAND 11 /* Unsupported or unknown command */ 618 #define OFP_ERRGROUPMOD_BAD_BUCKET 12 /* Error in bucket */ 619 #define OFP_ERRGROUPMOD_BAD_WATCH 13 /* Error in watch port/group */ 620 #define OFP_ERRGROUPMOD_EPERM 14 /* Permission error */ 621 622 /* GROUP MOD message */ 623 #define OFP_GROUPCMD_ADD 0 /* Add group */ 624 #define OFP_GROUPCMD_MODIFY 1 /* Modify group */ 625 #define OFP_GROUPCMD_DELETE 2 /* Delete group */ 626 627 /* Group types */ 628 #define OFP_GROUP_T_ALL 0 /* All (multicast/broadcast) group */ 629 #define OFP_GROUP_T_SELECT 1 /* Select group */ 630 #define OFP_GROUP_T_INDIRECT 2 /* Indirect group */ 631 #define OFP_GROUP_T_FAST_FAILOVER 3 /* Fast failover group */ 632 633 /* Special group identifiers */ 634 #define OFP_GROUP_ID_MAX 0xffffff00 /* Last usable group number */ 635 #define OFP_GROUP_ID_ALL 0xfffffffc /* Represents all groups for delete command */ 636 #define OFP_GROUP_ID_ANY 0xffffffff /* Special wildcard: no group specified */ 637 638 struct ofp_bucket { 639 uint16_t b_len; 640 uint16_t b_weight; 641 uint32_t b_watch_port; 642 uint32_t b_watch_group; 643 uint8_t b_pad[4]; 644 struct ofp_action_header b_actions[0]; 645 } __packed; 646 647 struct ofp_group_mod { 648 struct ofp_header gm_oh; 649 uint16_t gm_command; 650 uint8_t gm_type; 651 uint8_t gm_pad; 652 uint32_t gm_group_id; 653 struct ofp_bucket gm_buckets[0]; 654 } __packed; 655 656 struct ofp_multipart { 657 struct ofp_header mp_oh; 658 uint16_t mp_type; 659 uint16_t mp_flags; 660 uint8_t mp_pad[4]; 661 } __packed; 662 663 #define OFP_MP_FLAG_REQ_MORE 1 /* More requests to follow */ 664 #define OFP_MP_FLAG_REPLY_MORE 1 /* More replies to follow */ 665 666 /* Multipart types */ 667 #define OFP_MP_T_DESC 0 /* Description of the switch */ 668 #define OFP_MP_T_FLOW 1 /* Individual flow statistics */ 669 #define OFP_MP_T_AGGREGATE 2 /* Aggregate flow statistics */ 670 #define OFP_MP_T_TABLE 3 /* Flow table statistics */ 671 #define OFP_MP_T_PORT_STATS 4 /* Port statistics */ 672 #define OFP_MP_T_QUEUE 5 /* Queue statistics for a port */ 673 #define OFP_MP_T_GROUP 6 /* Group counter statistics */ 674 #define OFP_MP_T_GROUP_DESC 7 /* Group description */ 675 #define OFP_MP_T_GROUP_FEATURES 8 /* Group features */ 676 #define OFP_MP_T_METER 9 /* Meter statistics */ 677 #define OFP_MP_T_METER_CONFIG 10 /* Meter configuration */ 678 #define OFP_MP_T_METER_FEATURES 11 /* Meter features */ 679 #define OFP_MP_T_TABLE_FEATURES 12 /* Table features */ 680 #define OFP_MP_T_PORT_DESC 13 /* Port description */ 681 #define OFP_MP_T_EXPERIMENTER 0xffff /* Experimenter extension */ 682 683 #define OFP_DESC_STR_LEN 256 684 #define OFP_SERIAL_NUM_LEN 32 685 686 struct ofp_desc { 687 char d_mfr_desc[OFP_DESC_STR_LEN]; 688 char d_hw_desc[OFP_DESC_STR_LEN]; 689 char d_sw_desc[OFP_DESC_STR_LEN]; 690 char d_serial_num[OFP_SERIAL_NUM_LEN]; 691 char d_dp_desc[OFP_DESC_STR_LEN]; 692 } __packed; 693 694 /* Flow stats request */ 695 struct ofp_flow_stats_request { 696 uint8_t fsr_table_id; 697 uint8_t fsr_pad[3]; 698 uint32_t fsr_out_port; 699 uint32_t fsr_out_group; 700 uint8_t fsr_pad2[4]; 701 uint64_t fsr_cookie; 702 uint64_t fsr_cookie_mask; 703 struct ofp_match fsr_match; 704 } __packed; 705 706 /* Flow stats */ 707 struct ofp_flow_stats { 708 uint16_t fs_length; 709 uint8_t fs_table_id; 710 uint8_t fs_pad; 711 uint32_t fs_duration_sec; 712 uint32_t fs_duration_nsec; 713 uint16_t fs_priority; 714 uint16_t fs_idle_timeout; 715 uint16_t fs_hard_timeout; 716 uint16_t fs_flags; 717 uint8_t fs_pad2[4]; 718 uint64_t fs_cookie; 719 uint64_t fs_packet_count; 720 uint64_t fs_byte_count; 721 struct ofp_match fs_match; 722 } __packed; 723 724 /* Aggregate flow stats request */ 725 struct ofp_aggregate_stats_request { 726 uint8_t asr_table_id; 727 uint8_t asr_pad[3]; 728 uint32_t asr_out_port; 729 uint32_t asr_out_group; 730 uint8_t asr_pad2[4]; 731 uint64_t asr_cookie; 732 uint64_t asr_cookie_mask; 733 struct ofp_match asr_match; 734 } __packed; 735 736 struct ofp_aggregate_stats { 737 uint64_t as_packet_count; 738 uint64_t as_byte_count; 739 uint32_t as_flow_count; 740 uint8_t as_pad[4]; 741 } __packed; 742 743 /* Special table id */ 744 #define OFP_TABLE_ID_MAX 0xfe /* Last usable table */ 745 #define OFP_TABLE_ID_ALL 0xff /* Wildcard table */ 746 747 struct ofp_table_stats { 748 uint8_t ts_table_id; 749 uint8_t ts_pad[3]; 750 uint32_t ts_active_count; 751 uint64_t ts_lookup_count; 752 uint64_t ts_matched_count; 753 } __packed; 754 755 /* Table features */ 756 #define OFP_TABLE_FEATPROP_INSTRUCTION 0 /* Instruction property */ 757 #define OFP_TABLE_FEATPROP_INSTRUCTION_MISS 1 /* Instruction for table-miss */ 758 #define OFP_TABLE_FEATPROP_NEXT_TABLES 2 /* Next table property */ 759 #define OFP_TABLE_FEATPROP_NEXT_TABLES_MISS 3 /* Next table for table-miss */ 760 #define OFP_TABLE_FEATPROP_WRITE_ACTIONS 4 /* Write actions property */ 761 #define OFP_TABLE_FEATPROP_WRITE_ACTIONS_MISS 5 /* Write actions for table-miss */ 762 #define OFP_TABLE_FEATPROP_APPLY_ACTIONS 6 /* Apply actions property */ 763 #define OFP_TABLE_FEATPROP_APPLY_ACTIONS_MISS 7 /* Apply actions for table-miss */ 764 #define OFP_TABLE_FEATPROP_MATCH 8 /* Match property */ 765 #define OFP_TABLE_FEATPROP_WILDCARDS 10 /* Wildcards property */ 766 #define OFP_TABLE_FEATPROP_WRITE_SETFIELD 12 /* Write set-field property */ 767 #define OFP_TABLE_FEATPROP_WRITE_SETFIELD_MISS 13 /* Write set-field for table-miss */ 768 #define OFP_TABLE_FEATPROP_APPLY_SETFIELD 14 /* Apply set-field property */ 769 #define OFP_TABLE_FEATPROP_APPLY_SETFIELD_MISS 15 /* Apply set-field for table-miss */ 770 #define OFP_TABLE_FEATPROP_EXPERIMENTER 0xfffe /* Experimenter property */ 771 #define OFP_TABLE_FEATPROP_EXPERIMENTER_MISS 0xffff /* Experimenter for table-miss */ 772 773 #define OFP_TABLE_MAX_NAME_LEN 32 774 775 struct ofp_table_features { 776 uint16_t tf_length; 777 uint8_t tf_tableid; 778 uint8_t tf_pad[5]; 779 char tf_name[OFP_TABLE_MAX_NAME_LEN]; 780 uint64_t tf_metadata_match; 781 uint64_t tf_metadata_write; 782 uint32_t tf_config; 783 uint32_t tf_max_entries; 784 } __packed; 785 786 struct ofp_table_feature_property { 787 uint16_t tp_type; 788 uint16_t tp_length; 789 } __packed; 790 791 struct ofp_table_feature_property_instruction { 792 uint16_t tpi_type; 793 uint16_t tpi_length; 794 struct ofp_instruction tpi_instructions[0]; 795 } __packed; 796 797 struct ofp_table_feature_property_next_tables { 798 uint16_t tpnt_type; 799 uint16_t tpnt_length; 800 uint8_t tpnt_tables[0]; 801 } __packed; 802 803 struct ofp_table_feature_property_actions { 804 uint16_t tpa_type; 805 uint16_t tpa_length; 806 struct ofp_action_header tpa_actions[0]; 807 } __packed; 808 809 struct ofp_table_feature_property_oxm { 810 uint16_t tpoxm_type; 811 uint16_t tpoxm_length; 812 uint32_t tpoxm_oxm[0]; 813 } __packed; 814 815 struct ofp_table_feature_property_experimenter { 816 uint16_t tfpexp_type; 817 uint16_t tfpexp_length; 818 uint32_t tfpexp_experimenter; 819 uint32_t tfpexp_exp_type; 820 uint32_t tfpexp_experimenter_data[0]; 821 } __packed; 822 823 struct ofp_port_stats { 824 uint32_t pt_port_no; 825 uint8_t pt_pad[4]; 826 uint64_t pt_rx_packets; 827 uint64_t pt_tx_packets; 828 uint64_t pt_rx_bytes; 829 uint64_t pt_tx_bytes; 830 uint64_t pt_rx_dropped; 831 uint64_t pt_tx_dropped; 832 uint64_t pt_rx_errors; 833 uint64_t pt_tx_errors; 834 uint64_t pt_rx_frame_err; 835 uint64_t pt_rx_over_err; 836 uint64_t pt_rx_crc_err; 837 uint64_t pt_collision; 838 uint32_t pt_duration_sec; 839 uint32_t pt_duration_nsec; 840 } __packed; 841 842 /* Groups stats request */ 843 struct ofp_group_stats_request { 844 uint32_t gsr_group_id; 845 uint8_t gsr_pad[4]; 846 } __packed; 847 848 struct ofp_bucket_counter { 849 uint64_t gs_packet_count; 850 uint64_t gs_byte_count; 851 } __packed; 852 853 /* Group stats */ 854 struct ofp_group_stats { 855 uint16_t gs_length; 856 uint8_t gs_pad[2]; 857 uint32_t gs_group_id; 858 uint32_t gs_ref_count; 859 uint8_t gs_pad2[4]; 860 uint64_t gs_packet_count; 861 uint64_t gs_byte_count; 862 uint32_t gs_duration_sec; 863 uint32_t gs_duration_nsec; 864 struct ofp_bucket_counter gs_bucket_stats[0]; 865 } __packed; 866 867 /* Group description */ 868 struct ofp_group_desc { 869 uint16_t gd_length; 870 uint8_t gd_type; 871 uint8_t gd_pad; 872 uint32_t gd_group_id; 873 struct ofp_bucket gd_buckets[0]; 874 } __packed; 875 876 /* 877 * Implementation-specific definitions that are not part of the spec 878 */ 879 880 /* OpenFlow finite state machine */ 881 enum ofp_state { 882 OFP_STATE_CLOSED, 883 OFP_STATE_HELLO_WAIT, 884 OFP_STATE_FEATURE_WAIT, 885 OFP_STATE_ESTABLISHED 886 }; 887 888 /* Used by the bpf for DLT_OPENFLOW */ 889 struct dlt_openflow_hdr { 890 uint32_t of_direction; 891 uint64_t of_datapath_id; 892 } __packed; 893 894 #define DLT_OPENFLOW_TO_SWITCH 1 895 #define DLT_OPENFLOW_TO_CONTROLLER 2 896 897 #endif /* _NET_OFP_H_ */ 898