From: Ben Pfaff Date: Mon, 24 Oct 2011 01:16:03 +0000 (-0700) Subject: Move content of openflow.h into openflow-1.0.h. X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=539315543cc6123ae4efec162e291f7f90d0ccf0;p=openvswitch Move content of openflow.h into openflow-1.0.h. This prepares for a gradual introduction of definitions from OpenFlow 1.1 and later, by making it clearer that the current definitions are specific to OpenFlow 1.0. Reviewed-by: Simon Horman Signed-off-by: Ben Pfaff --- diff --git a/build-aux/check-structs b/build-aux/check-structs index 0849fcf1..731a4e29 100755 --- a/build-aux/check-structs +++ b/build-aux/check-structs @@ -23,13 +23,18 @@ token = None line = "" idRe = "[a-zA-Z_][a-zA-Z_0-9]*" tokenRe = "#?" + idRe + "|[0-9]+|." +includeRe = re.compile(r'\s*#include\s+"(openflow/[^#]+)"') +includePath = '' inComment = False inDirective = False +inputStack = [] def getToken(): global token global line global inComment global inDirective + global inputFile + global fileName while True: line = line.lstrip() if line != "": @@ -59,16 +64,27 @@ def getToken(): return True else: global lineNumber - line = inputFile.readline() - lineNumber += 1 - while line.endswith("\\\n"): - line = line[:-2] + inputFile.readline() + while True: + line = inputFile.readline() lineNumber += 1 - if line == "": - if token == None: - fatal("unexpected end of input") - token = None - return False + while line.endswith("\\\n"): + line = line[:-2] + inputFile.readline() + lineNumber += 1 + match = includeRe.match(line) + if match: + inputStack.append((fileName, inputFile, lineNumber)) + inputFile = open(includePath + match.group(1)) + lineNumber = 0 + continue + if line == "": + if inputStack: + fileName, inputFile, lineNumber = inputStack.pop() + continue + if token == None: + fatal("unexpected end of input") + token = None + return False + break def fatal(msg): sys.stderr.write("%s:%d: error at \"%s\": %s\n" % (fileName, lineNumber, token, msg)) @@ -199,7 +215,7 @@ def checkStructs(): argv0 = os.path.basename(sys.argv[0]) print '''\ %(argv0)s, for checking struct and struct member alignment -usage: %(argv0)s HEADER [HEADER]... +usage: %(argv0)s -Ipath HEADER [HEADER]... This program reads the header files specified on the command line and verifies that all struct members are aligned on natural boundaries @@ -210,16 +226,19 @@ some ABIs for ARM require all structs to be a multiple of 32 bits), or compiler adding additional padding. Finally, it checks struct size assertions using OFP_ASSERT. -Header files are read in the order specified. #include directives are -not processed, so specify them in dependency order. - -This program is specialized for reading include/openflow/openflow.h -and include/openflow/nicira-ext.h. It will not work on arbitrary -header files without extensions.''' % {"argv0": argv0} +This program is specialized for reading Open vSwitch's OpenFlow header +files. It will not work on arbitrary header files without extensions.\ +''' % {"argv0": argv0} sys.exit(0) global fileName for fileName in sys.argv[1:]: + if fileName.startswith('-I'): + global includePath + includePath = fileName[2:] + if not includePath.endswith('/'): + includePath += '/' + continue global inputFile global lineNumber inputFile = open(fileName) diff --git a/include/openflow/automake.mk b/include/openflow/automake.mk index 4b370d4f..70cd520d 100644 --- a/include/openflow/automake.mk +++ b/include/openflow/automake.mk @@ -1,20 +1,26 @@ noinst_HEADERS += \ include/openflow/nicira-ext.h \ + include/openflow/openflow-1.0.h \ include/openflow/openflow.h if HAVE_PYTHON -ALL_LOCAL += include/openflow/openflow.h.stamp -include/openflow/openflow.h.stamp: \ - include/openflow/openflow.h build-aux/check-structs - $(PYTHON) $(srcdir)/build-aux/check-structs $(srcdir)/include/openflow/openflow.h - touch $@ -DISTCLEANFILES += include/openflow/openflow.h.stamp +SUFFIXES += .h .hstamp -ALL_LOCAL += include/openflow/nicira-ext.h.stamp -include/openflow/nicira-ext.h.stamp: include/openflow/openflow.h include/openflow/nicira-ext.h build-aux/check-structs - $(PYTHON) $(srcdir)/build-aux/check-structs $(srcdir)/include/openflow/openflow.h $(srcdir)/include/openflow/nicira-ext.h +.h.hstamp: + $(PYTHON) $(srcdir)/build-aux/check-structs -I$(srcdir)/include $< touch $@ -DISTCLEANFILES += include/openflow/nicira-ext.h.stamp + +HSTAMP_FILES = \ + include/openflow/openflow.hstamp \ + include/openflow/openflow-1.0.hstamp \ + include/openflow/nicira.hstamp +ALL_LOCAL += $(HSTAMP_FILES) +$(HSTAMP_FILES): build-aux/check-structs + +include/openflow/openflow-1.0.hstamp: include/openflow/openflow.h +include/openflow/nicira-ext.hstamp: \ + include/openflow/openflow-1.0.h \ + include/openflow/openflow.h endif EXTRA_DIST += build-aux/check-structs diff --git a/include/openflow/openflow-1.0.h b/include/openflow/openflow-1.0.h new file mode 100644 index 00000000..d86243f9 --- /dev/null +++ b/include/openflow/openflow-1.0.h @@ -0,0 +1,828 @@ +/* + * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/* OpenFlow: protocol between controller and datapath. */ + +#ifndef OPENFLOW_OPENFLOW10_H +#define OPENFLOW_OPENFLOW10_H 1 + +#include "openvswitch/types.h" + +#ifdef SWIG +#define OFP_ASSERT(EXPR) /* SWIG can't handle OFP_ASSERT. */ +#elif !defined(__cplusplus) +/* Build-time assertion for use in a declaration context. */ +#define OFP_ASSERT(EXPR) \ + extern int (*build_assert(void))[ sizeof(struct { \ + unsigned int build_assert_failed : (EXPR) ? 1 : -1; })] +#else /* __cplusplus */ +#include +#define OFP_ASSERT BOOST_STATIC_ASSERT +#endif /* __cplusplus */ + +/* Version number: + * Non-experimental versions released: 0x01 + * Experimental versions released: 0x81 -- 0x99 + */ +/* The most significant bit being set in the version field indicates an + * experimental OpenFlow version. + */ +#define OFP_VERSION 0x01 +#define OFP10_VERSION 0x01 + +#define OFP_MAX_TABLE_NAME_LEN 32 +#define OFP_MAX_PORT_NAME_LEN 16 + +#define OFP_TCP_PORT 6633 +#define OFP_SSL_PORT 6633 + +#define OFP_ETH_ALEN 6 /* Bytes in an Ethernet address. */ + +/* Port numbering. Physical ports are numbered starting from 1. */ +enum ofp_port { + /* Maximum number of physical switch ports. */ + OFPP_MAX = 0xff00, + + /* Fake output "ports". */ + OFPP_IN_PORT = 0xfff8, /* Send the packet out the input port. This + virtual port must be explicitly used + in order to send back out of the input + port. */ + OFPP_TABLE = 0xfff9, /* Perform actions in flow table. + NB: This can only be the destination + port for packet-out messages. */ + OFPP_NORMAL = 0xfffa, /* Process with normal L2/L3 switching. */ + OFPP_FLOOD = 0xfffb, /* All physical ports except input port and + those disabled by STP. */ + OFPP_ALL = 0xfffc, /* All physical ports except input port. */ + OFPP_CONTROLLER = 0xfffd, /* Send to controller. */ + OFPP_LOCAL = 0xfffe, /* Local openflow "port". */ + OFPP_NONE = 0xffff /* Not associated with a physical port. */ +}; + +enum ofp_type { + /* Immutable messages. */ + OFPT_HELLO, /* Symmetric message */ + OFPT_ERROR, /* Symmetric message */ + OFPT_ECHO_REQUEST, /* Symmetric message */ + OFPT_ECHO_REPLY, /* Symmetric message */ + OFPT_VENDOR, /* Symmetric message */ + + /* Switch configuration messages. */ + OFPT_FEATURES_REQUEST, /* Controller/switch message */ + OFPT_FEATURES_REPLY, /* Controller/switch message */ + OFPT_GET_CONFIG_REQUEST, /* Controller/switch message */ + OFPT_GET_CONFIG_REPLY, /* Controller/switch message */ + OFPT_SET_CONFIG, /* Controller/switch message */ + + /* Asynchronous messages. */ + OFPT_PACKET_IN, /* Async message */ + OFPT_FLOW_REMOVED, /* Async message */ + OFPT_PORT_STATUS, /* Async message */ + + /* Controller command messages. */ + OFPT_PACKET_OUT, /* Controller/switch message */ + OFPT_FLOW_MOD, /* Controller/switch message */ + OFPT_PORT_MOD, /* Controller/switch message */ + + /* Statistics messages. */ + OFPT_STATS_REQUEST, /* Controller/switch message */ + OFPT_STATS_REPLY, /* Controller/switch message */ + + /* Barrier messages. */ + OFPT_BARRIER_REQUEST, /* Controller/switch message */ + OFPT_BARRIER_REPLY, /* Controller/switch message */ + + /* Queue Configuration messages. */ + OFPT_QUEUE_GET_CONFIG_REQUEST, /* Controller/switch message */ + OFPT_QUEUE_GET_CONFIG_REPLY /* Controller/switch message */ +}; + +/* Header on all OpenFlow packets. */ +struct ofp_header { + uint8_t version; /* OFP_VERSION. */ + uint8_t type; /* One of the OFPT_ constants. */ + ovs_be16 length; /* Length including this ofp_header. */ + ovs_be32 xid; /* Transaction id associated with this packet. + Replies use the same id as was in the request + to facilitate pairing. */ +}; +OFP_ASSERT(sizeof(struct ofp_header) == 8); + +/* OFPT_HELLO. This message has an empty body, but implementations must + * ignore any data included in the body, to allow for future extensions. */ +struct ofp_hello { + struct ofp_header header; +}; + +#define OFP_DEFAULT_MISS_SEND_LEN 128 + +enum ofp_config_flags { + /* Handling of IP fragments. */ + OFPC_FRAG_NORMAL = 0, /* No special handling for fragments. */ + OFPC_FRAG_DROP = 1, /* Drop fragments. */ + OFPC_FRAG_REASM = 2, /* Reassemble (only if OFPC_IP_REASM set). */ + OFPC_FRAG_NX_MATCH = 3, /* Make first fragments available for matching. */ + OFPC_FRAG_MASK = 3, + + /* TTL processing - applicable for IP and MPLS packets. */ + OFPC_INVALID_TTL_TO_CONTROLLER = 1 << 2, /* Send packets with invalid TTL + to the controller. */ +}; + +/* Switch configuration. */ +struct ofp_switch_config { + struct ofp_header header; + ovs_be16 flags; /* OFPC_* flags. */ + ovs_be16 miss_send_len; /* Max bytes of new flow that datapath should + send to the controller. */ +}; +OFP_ASSERT(sizeof(struct ofp_switch_config) == 12); + +/* Capabilities supported by the datapath. */ +enum ofp_capabilities { + OFPC_FLOW_STATS = 1 << 0, /* Flow statistics. */ + OFPC_TABLE_STATS = 1 << 1, /* Table statistics. */ + OFPC_PORT_STATS = 1 << 2, /* Port statistics. */ + OFPC_STP = 1 << 3, /* 802.1d spanning tree. */ + OFPC_RESERVED = 1 << 4, /* Reserved, must not be set. */ + OFPC_IP_REASM = 1 << 5, /* Can reassemble IP fragments. */ + OFPC_QUEUE_STATS = 1 << 6, /* Queue statistics. */ + OFPC_ARP_MATCH_IP = 1 << 7 /* Match IP addresses in ARP + pkts. */ +}; + +/* Flags to indicate behavior of the physical port. These flags are + * used in ofp_phy_port to describe the current configuration. They are + * used in the ofp_port_mod message to configure the port's behavior. + */ +enum ofp_port_config { + OFPPC_PORT_DOWN = 1 << 0, /* Port is administratively down. */ + + OFPPC_NO_STP = 1 << 1, /* Disable 802.1D spanning tree on port. */ + OFPPC_NO_RECV = 1 << 2, /* Drop all packets except 802.1D + spanning tree packets. */ + OFPPC_NO_RECV_STP = 1 << 3, /* Drop received 802.1D STP packets. */ + OFPPC_NO_FLOOD = 1 << 4, /* Do not include this port when flooding. */ + OFPPC_NO_FWD = 1 << 5, /* Drop packets forwarded to port. */ + OFPPC_NO_PACKET_IN = 1 << 6 /* Do not send packet-in msgs for port. */ +}; + +/* Current state of the physical port. These are not configurable from + * the controller. + */ +enum ofp_port_state { + OFPPS_LINK_DOWN = 1 << 0, /* No physical link present. */ + + /* The OFPPS_STP_* bits have no effect on switch operation. The + * controller must adjust OFPPC_NO_RECV, OFPPC_NO_FWD, and + * OFPPC_NO_PACKET_IN appropriately to fully implement an 802.1D spanning + * tree. */ + OFPPS_STP_LISTEN = 0 << 8, /* Not learning or relaying frames. */ + OFPPS_STP_LEARN = 1 << 8, /* Learning but not relaying frames. */ + OFPPS_STP_FORWARD = 2 << 8, /* Learning and relaying frames. */ + OFPPS_STP_BLOCK = 3 << 8, /* Not part of spanning tree. */ + OFPPS_STP_MASK = 3 << 8 /* Bit mask for OFPPS_STP_* values. */ +}; + +/* Features of physical ports available in a datapath. */ +enum ofp_port_features { + OFPPF_10MB_HD = 1 << 0, /* 10 Mb half-duplex rate support. */ + OFPPF_10MB_FD = 1 << 1, /* 10 Mb full-duplex rate support. */ + OFPPF_100MB_HD = 1 << 2, /* 100 Mb half-duplex rate support. */ + OFPPF_100MB_FD = 1 << 3, /* 100 Mb full-duplex rate support. */ + OFPPF_1GB_HD = 1 << 4, /* 1 Gb half-duplex rate support. */ + OFPPF_1GB_FD = 1 << 5, /* 1 Gb full-duplex rate support. */ + OFPPF_10GB_FD = 1 << 6, /* 10 Gb full-duplex rate support. */ + OFPPF_COPPER = 1 << 7, /* Copper medium. */ + OFPPF_FIBER = 1 << 8, /* Fiber medium. */ + OFPPF_AUTONEG = 1 << 9, /* Auto-negotiation. */ + OFPPF_PAUSE = 1 << 10, /* Pause. */ + OFPPF_PAUSE_ASYM = 1 << 11 /* Asymmetric pause. */ +}; + +/* Description of a physical port */ +struct ofp_phy_port { + ovs_be16 port_no; + uint8_t hw_addr[OFP_ETH_ALEN]; + char name[OFP_MAX_PORT_NAME_LEN]; /* Null-terminated */ + + ovs_be32 config; /* Bitmap of OFPPC_* flags. */ + ovs_be32 state; /* Bitmap of OFPPS_* flags. */ + + /* Bitmaps of OFPPF_* that describe features. All bits zeroed if + * unsupported or unavailable. */ + ovs_be32 curr; /* Current features. */ + ovs_be32 advertised; /* Features being advertised by the port. */ + ovs_be32 supported; /* Features supported by the port. */ + ovs_be32 peer; /* Features advertised by peer. */ +}; +OFP_ASSERT(sizeof(struct ofp_phy_port) == 48); + +/* Switch features. */ +struct ofp_switch_features { + struct ofp_header header; + ovs_be64 datapath_id; /* Datapath unique ID. The lower 48-bits are for + a MAC address, while the upper 16-bits are + implementer-defined. */ + + ovs_be32 n_buffers; /* Max packets buffered at once. */ + + uint8_t n_tables; /* Number of tables supported by datapath. */ + uint8_t pad[3]; /* Align to 64-bits. */ + + /* Features. */ + ovs_be32 capabilities; /* Bitmap of support "ofp_capabilities". */ + ovs_be32 actions; /* Bitmap of supported "ofp_action_type"s. */ + + /* Port info.*/ + struct ofp_phy_port ports[0]; /* Port definitions. The number of ports + is inferred from the length field in + the header. */ +}; +OFP_ASSERT(sizeof(struct ofp_switch_features) == 32); + +/* What changed about the physical port */ +enum ofp_port_reason { + OFPPR_ADD, /* The port was added. */ + OFPPR_DELETE, /* The port was removed. */ + OFPPR_MODIFY /* Some attribute of the port has changed. */ +}; + +/* A physical port has changed in the datapath */ +struct ofp_port_status { + struct ofp_header header; + uint8_t reason; /* One of OFPPR_*. */ + uint8_t pad[7]; /* Align to 64-bits. */ + struct ofp_phy_port desc; +}; +OFP_ASSERT(sizeof(struct ofp_port_status) == 64); + +/* Modify behavior of the physical port */ +struct ofp_port_mod { + struct ofp_header header; + ovs_be16 port_no; + uint8_t hw_addr[OFP_ETH_ALEN]; /* 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 struct. */ + + ovs_be32 config; /* Bitmap of OFPPC_* flags. */ + ovs_be32 mask; /* Bitmap of OFPPC_* flags to be changed. */ + + ovs_be32 advertise; /* Bitmap of "ofp_port_features"s. Zero all + bits to prevent any action taking place. */ + uint8_t pad[4]; /* Pad to 64-bits. */ +}; +OFP_ASSERT(sizeof(struct ofp_port_mod) == 32); + +/* Why is this packet being sent to the controller? */ +enum ofp_packet_in_reason { + OFPR_NO_MATCH, /* No matching flow. */ + OFPR_ACTION, /* Action explicitly output to controller. */ + OFPR_INVALID_TTL /* Packet has invalid TTL. */, + OFPR_N_REASONS +}; + +/* Packet received on port (datapath -> controller). */ +struct ofp_packet_in { + struct ofp_header header; + ovs_be32 buffer_id; /* ID assigned by datapath. */ + ovs_be16 total_len; /* Full length of frame. */ + ovs_be16 in_port; /* Port on which frame was received. */ + uint8_t reason; /* Reason packet is being sent (one of OFPR_*) */ + uint8_t pad; + uint8_t data[0]; /* 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. */ +}; +OFP_ASSERT(sizeof(struct ofp_packet_in) == 20); + +enum ofp_action_type { + OFPAT_OUTPUT, /* Output to switch port. */ + OFPAT_SET_VLAN_VID, /* Set the 802.1q VLAN id. */ + OFPAT_SET_VLAN_PCP, /* Set the 802.1q priority. */ + OFPAT_STRIP_VLAN, /* Strip the 802.1q header. */ + OFPAT_SET_DL_SRC, /* Ethernet source address. */ + OFPAT_SET_DL_DST, /* Ethernet destination address. */ + OFPAT_SET_NW_SRC, /* IP source address. */ + OFPAT_SET_NW_DST, /* IP destination address. */ + OFPAT_SET_NW_TOS, /* IP ToS (DSCP field, 6 bits). */ + OFPAT_SET_TP_SRC, /* TCP/UDP source port. */ + OFPAT_SET_TP_DST, /* TCP/UDP destination port. */ + OFPAT_ENQUEUE, /* Output to queue. */ + OFPAT_VENDOR = 0xffff +}; + +/* Action structure for OFPAT_OUTPUT, which sends packets out 'port'. + * When the 'port' is the OFPP_CONTROLLER, 'max_len' indicates the max + * number of bytes to send. A 'max_len' of zero means no bytes of the + * packet should be sent. */ +struct ofp_action_output { + ovs_be16 type; /* OFPAT_OUTPUT. */ + ovs_be16 len; /* Length is 8. */ + ovs_be16 port; /* Output port. */ + ovs_be16 max_len; /* Max length to send to controller. */ +}; +OFP_ASSERT(sizeof(struct ofp_action_output) == 8); + +/* The VLAN id is 12 bits, so we can use the entire 16 bits to indicate + * special conditions. All ones is used to match that no VLAN id was + * set. */ +#define OFP_VLAN_NONE 0xffff + +/* Action structure for OFPAT_SET_VLAN_VID. */ +struct ofp_action_vlan_vid { + ovs_be16 type; /* OFPAT_SET_VLAN_VID. */ + ovs_be16 len; /* Length is 8. */ + ovs_be16 vlan_vid; /* VLAN id. */ + uint8_t pad[2]; +}; +OFP_ASSERT(sizeof(struct ofp_action_vlan_vid) == 8); + +/* Action structure for OFPAT_SET_VLAN_PCP. */ +struct ofp_action_vlan_pcp { + ovs_be16 type; /* OFPAT_SET_VLAN_PCP. */ + ovs_be16 len; /* Length is 8. */ + uint8_t vlan_pcp; /* VLAN priority. */ + uint8_t pad[3]; +}; +OFP_ASSERT(sizeof(struct ofp_action_vlan_pcp) == 8); + +/* Action structure for OFPAT_SET_DL_SRC/DST. */ +struct ofp_action_dl_addr { + ovs_be16 type; /* OFPAT_SET_DL_SRC/DST. */ + ovs_be16 len; /* Length is 16. */ + uint8_t dl_addr[OFP_ETH_ALEN]; /* Ethernet address. */ + uint8_t pad[6]; +}; +OFP_ASSERT(sizeof(struct ofp_action_dl_addr) == 16); + +/* Action structure for OFPAT_SET_NW_SRC/DST. */ +struct ofp_action_nw_addr { + ovs_be16 type; /* OFPAT_SET_TW_SRC/DST. */ + ovs_be16 len; /* Length is 8. */ + ovs_be32 nw_addr; /* IP address. */ +}; +OFP_ASSERT(sizeof(struct ofp_action_nw_addr) == 8); + +/* Action structure for OFPAT_SET_NW_TOS. */ +struct ofp_action_nw_tos { + ovs_be16 type; /* OFPAT_SET_TW_TOS. */ + ovs_be16 len; /* Length is 8. */ + uint8_t nw_tos; /* IP TOS (DSCP field, 6 bits). */ + uint8_t pad[3]; +}; +OFP_ASSERT(sizeof(struct ofp_action_nw_tos) == 8); + +/* Action structure for OFPAT_SET_TP_SRC/DST. */ +struct ofp_action_tp_port { + ovs_be16 type; /* OFPAT_SET_TP_SRC/DST. */ + ovs_be16 len; /* Length is 8. */ + ovs_be16 tp_port; /* TCP/UDP port. */ + uint8_t pad[2]; +}; +OFP_ASSERT(sizeof(struct ofp_action_tp_port) == 8); + +/* Action header for OFPAT_VENDOR. The rest of the body is vendor-defined. */ +struct ofp_action_vendor_header { + ovs_be16 type; /* OFPAT_VENDOR. */ + ovs_be16 len; /* Length is a multiple of 8. */ + ovs_be32 vendor; /* Vendor ID, which takes the same form + as in "struct ofp_vendor_header". */ +}; +OFP_ASSERT(sizeof(struct ofp_action_vendor_header) == 8); + +/* Action header that is common to all actions. The length includes the + * header and any padding used to make the action 64-bit aligned. + * NB: The length of an action *must* always be a multiple of eight. */ +struct ofp_action_header { + ovs_be16 type; /* One of OFPAT_*. */ + ovs_be16 len; /* Length of action, including this + header. This is the length of action, + including any padding to make it + 64-bit aligned. */ + uint8_t pad[4]; +}; +OFP_ASSERT(sizeof(struct ofp_action_header) == 8); + +/* OFPAT_ENQUEUE action struct: send packets to given queue on port. */ +struct ofp_action_enqueue { + ovs_be16 type; /* OFPAT_ENQUEUE. */ + ovs_be16 len; /* Len is 16. */ + ovs_be16 port; /* Port that queue belongs. Should + refer to a valid physical port + (i.e. < OFPP_MAX) or OFPP_IN_PORT. */ + uint8_t pad[6]; /* Pad for 64-bit alignment. */ + ovs_be32 queue_id; /* Where to enqueue the packets. */ +}; +OFP_ASSERT(sizeof(struct ofp_action_enqueue) == 16); + +union ofp_action { + ovs_be16 type; + struct ofp_action_header header; + struct ofp_action_vendor_header vendor; + struct ofp_action_output output; + struct ofp_action_vlan_vid vlan_vid; + struct ofp_action_vlan_pcp vlan_pcp; + struct ofp_action_nw_addr nw_addr; + struct ofp_action_nw_tos nw_tos; + struct ofp_action_tp_port tp_port; +}; +OFP_ASSERT(sizeof(union ofp_action) == 8); + +/* Send packet (controller -> datapath). */ +struct ofp_packet_out { + struct ofp_header header; + ovs_be32 buffer_id; /* ID assigned by datapath or UINT32_MAX. */ + ovs_be16 in_port; /* Packet's input port (OFPP_NONE if none). */ + ovs_be16 actions_len; /* Size of action array in bytes. */ + /* Followed by: + * - Exactly 'actions_len' bytes (possibly 0 bytes, and always a multiple + * of 8) containing actions. + * - If 'buffer_id' == UINT32_MAX, packet data to fill out the remainder + * of the message length. + */ +}; +OFP_ASSERT(sizeof(struct ofp_packet_out) == 16); + +enum ofp_flow_mod_command { + OFPFC_ADD, /* New flow. */ + OFPFC_MODIFY, /* Modify all matching flows. */ + OFPFC_MODIFY_STRICT, /* Modify entry strictly matching wildcards */ + OFPFC_DELETE, /* Delete all matching flows. */ + OFPFC_DELETE_STRICT /* Strictly match wildcards and priority. */ +}; + +/* Flow wildcards. */ +enum ofp_flow_wildcards { + OFPFW_IN_PORT = 1 << 0, /* Switch input port. */ + OFPFW_DL_VLAN = 1 << 1, /* VLAN vid. */ + OFPFW_DL_SRC = 1 << 2, /* Ethernet source address. */ + OFPFW_DL_DST = 1 << 3, /* Ethernet destination address. */ + OFPFW_DL_TYPE = 1 << 4, /* Ethernet frame type. */ + OFPFW_NW_PROTO = 1 << 5, /* IP protocol. */ + OFPFW_TP_SRC = 1 << 6, /* TCP/UDP source port. */ + OFPFW_TP_DST = 1 << 7, /* TCP/UDP destination port. */ + + /* IP source address wildcard bit count. 0 is exact match, 1 ignores the + * LSB, 2 ignores the 2 least-significant bits, ..., 32 and higher wildcard + * the entire field. This is the *opposite* of the usual convention where + * e.g. /24 indicates that 8 bits (not 24 bits) are wildcarded. */ + OFPFW_NW_SRC_SHIFT = 8, + OFPFW_NW_SRC_BITS = 6, + OFPFW_NW_SRC_MASK = ((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT, + OFPFW_NW_SRC_ALL = 32 << OFPFW_NW_SRC_SHIFT, + + /* IP destination address wildcard bit count. Same format as source. */ + OFPFW_NW_DST_SHIFT = 14, + OFPFW_NW_DST_BITS = 6, + OFPFW_NW_DST_MASK = ((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT, + OFPFW_NW_DST_ALL = 32 << OFPFW_NW_DST_SHIFT, + + OFPFW_DL_VLAN_PCP = 1 << 20, /* VLAN priority. */ + OFPFW_NW_TOS = 1 << 21, /* IP ToS (DSCP field, 6 bits). */ + + /* Wildcard all fields. */ + OFPFW_ALL = ((1 << 22) - 1) +}; + +/* The wildcards for ICMP type and code fields use the transport source + * and destination port fields, respectively. */ +#define OFPFW_ICMP_TYPE OFPFW_TP_SRC +#define OFPFW_ICMP_CODE OFPFW_TP_DST + +/* Values below this cutoff are 802.3 packets and the two bytes + * following MAC addresses are used as a frame length. Otherwise, the + * two bytes are used as the Ethernet type. + */ +#define OFP_DL_TYPE_ETH2_CUTOFF 0x0600 + +/* Value of dl_type to indicate that the frame does not include an + * Ethernet type. + */ +#define OFP_DL_TYPE_NOT_ETH_TYPE 0x05ff + +/* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate + * special conditions. All ones indicates that no VLAN id was set. + */ +#define OFP_VLAN_NONE 0xffff + +/* Fields to match against flows */ +struct ofp_match { + ovs_be32 wildcards; /* Wildcard fields. */ + ovs_be16 in_port; /* Input switch port. */ + uint8_t dl_src[OFP_ETH_ALEN]; /* Ethernet source address. */ + uint8_t dl_dst[OFP_ETH_ALEN]; /* Ethernet destination address. */ + ovs_be16 dl_vlan; /* Input VLAN. */ + uint8_t dl_vlan_pcp; /* Input VLAN priority. */ + uint8_t pad1[1]; /* Align to 64-bits. */ + ovs_be16 dl_type; /* Ethernet frame type. */ + uint8_t nw_tos; /* IP ToS (DSCP field, 6 bits). */ + uint8_t nw_proto; /* IP protocol or lower 8 bits of + ARP opcode. */ + uint8_t pad2[2]; /* Align to 64-bits. */ + ovs_be32 nw_src; /* IP source address. */ + ovs_be32 nw_dst; /* IP destination address. */ + ovs_be16 tp_src; /* TCP/UDP source port. */ + ovs_be16 tp_dst; /* TCP/UDP destination port. */ +}; +OFP_ASSERT(sizeof(struct ofp_match) == 40); + +/* Value used in "idle_timeout" and "hard_timeout" to indicate that the entry + * is permanent. */ +#define OFP_FLOW_PERMANENT 0 + +/* By default, choose a priority in the middle. */ +#define OFP_DEFAULT_PRIORITY 0x8000 + +enum ofp_flow_mod_flags { + OFPFF_SEND_FLOW_REM = 1 << 0, /* Send flow removed message when flow + * expires or is deleted. */ + OFPFF_CHECK_OVERLAP = 1 << 1, /* Check for overlapping entries first. */ + OFPFF_EMERG = 1 << 2 /* Ramark this is for emergency. */ +}; + +/* Flow setup and teardown (controller -> datapath). */ +struct ofp_flow_mod { + struct ofp_header header; + struct ofp_match match; /* Fields to match */ + ovs_be64 cookie; /* Opaque controller-issued identifier. */ + + /* Flow actions. */ + ovs_be16 command; /* One of OFPFC_*. */ + ovs_be16 idle_timeout; /* Idle time before discarding (seconds). */ + ovs_be16 hard_timeout; /* Max time before discarding (seconds). */ + ovs_be16 priority; /* Priority level of flow entry. */ + ovs_be32 buffer_id; /* Buffered packet to apply to (or -1). + Not meaningful for OFPFC_DELETE*. */ + ovs_be16 out_port; /* For OFPFC_DELETE* commands, require + matching entries to include this as an + output port. A value of OFPP_NONE + indicates no restriction. */ + ovs_be16 flags; /* One of OFPFF_*. */ + struct ofp_action_header actions[0]; /* The action length is inferred + from the length field in the + header. */ +}; +OFP_ASSERT(sizeof(struct ofp_flow_mod) == 72); + +/* Why was this flow removed? */ +enum ofp_flow_removed_reason { + OFPRR_IDLE_TIMEOUT, /* Flow idle time exceeded idle_timeout. */ + OFPRR_HARD_TIMEOUT, /* Time exceeded hard_timeout. */ + OFPRR_DELETE /* Evicted by a DELETE flow mod. */ +}; + +/* Flow removed (datapath -> controller). */ +struct ofp_flow_removed { + struct ofp_header header; + struct ofp_match match; /* Description of fields. */ + ovs_be64 cookie; /* Opaque controller-issued identifier. */ + + ovs_be16 priority; /* Priority level of flow entry. */ + uint8_t reason; /* One of OFPRR_*. */ + uint8_t pad[1]; /* Align to 32-bits. */ + + ovs_be32 duration_sec; /* Time flow was alive in seconds. */ + ovs_be32 duration_nsec; /* Time flow was alive in nanoseconds beyond + duration_sec. */ + ovs_be16 idle_timeout; /* Idle timeout from original flow mod. */ + uint8_t pad2[2]; /* Align to 64-bits. */ + ovs_be64 packet_count; + ovs_be64 byte_count; +}; +OFP_ASSERT(sizeof(struct ofp_flow_removed) == 88); + +/* OFPT_ERROR: Error message (datapath -> controller). */ +struct ofp_error_msg { + struct ofp_header header; + + ovs_be16 type; + ovs_be16 code; + uint8_t data[0]; /* Variable-length data. Interpreted based + on the type and code. */ +}; +OFP_ASSERT(sizeof(struct ofp_error_msg) == 12); + +enum ofp_stats_types { + /* Description of this OpenFlow switch. + * The request is struct ofp_stats_msg. + * The reply is struct ofp_desc_stats. */ + OFPST_DESC, + + /* Individual flow statistics. + * The request is struct ofp_flow_stats_request. + * The reply body is an array of struct ofp_flow_stats. */ + OFPST_FLOW, + + /* Aggregate flow statistics. + * The request is struct ofp_flow_stats_request. + * The reply is struct ofp_aggregate_stats_reply. */ + OFPST_AGGREGATE, + + /* Flow table statistics. + * The request is struct ofp_stats_msg. + * The reply body is an array of struct ofp_table_stats. */ + OFPST_TABLE, + + /* Physical port statistics. + * The request is struct ofp_port_stats_request. + * The reply body is an array of struct ofp_port_stats. */ + OFPST_PORT, + + /* Queue statistics for a port. + * The request body is struct ofp_queue_stats_request. + * The reply body is an array of struct ofp_queue_stats. */ + OFPST_QUEUE, + + /* Vendor extension. + * The request and reply begin with "struct ofp_vendor_stats". */ + OFPST_VENDOR = 0xffff +}; + +/* Statistics request or reply message. */ +struct ofp_stats_msg { + struct ofp_header header; + ovs_be16 type; /* One of the OFPST_* constants. */ + ovs_be16 flags; /* Requests: always 0. + * Replies: 0 or OFPSF_REPLY_MORE. */ +}; +OFP_ASSERT(sizeof(struct ofp_stats_msg) == 12); + +enum ofp_stats_reply_flags { + OFPSF_REPLY_MORE = 1 << 0 /* More replies to follow. */ +}; + +#define DESC_STR_LEN 256 +#define SERIAL_NUM_LEN 32 +/* Reply to OFPST_DESC request. Each entry is a NULL-terminated ASCII + * string. */ +struct ofp_desc_stats { + struct ofp_stats_msg osm; + char mfr_desc[DESC_STR_LEN]; /* Manufacturer description. */ + char hw_desc[DESC_STR_LEN]; /* Hardware description. */ + char sw_desc[DESC_STR_LEN]; /* Software description. */ + char serial_num[SERIAL_NUM_LEN]; /* Serial number. */ + char dp_desc[DESC_STR_LEN]; /* Human readable description of + the datapath. */ +}; +OFP_ASSERT(sizeof(struct ofp_desc_stats) == 1068); + +/* Stats request of type OFPST_AGGREGATE or OFPST_FLOW. */ +struct ofp_flow_stats_request { + struct ofp_stats_msg osm; + struct ofp_match match; /* Fields to match. */ + uint8_t table_id; /* ID of table to read (from ofp_table_stats) + or 0xff for all tables. */ + uint8_t pad; /* Align to 32 bits. */ + ovs_be16 out_port; /* Require matching entries to include this + as an output port. A value of OFPP_NONE + indicates no restriction. */ +}; +OFP_ASSERT(sizeof(struct ofp_flow_stats_request) == 56); + +/* Body of reply to OFPST_FLOW request. */ +struct ofp_flow_stats { + ovs_be16 length; /* Length of this entry. */ + uint8_t table_id; /* ID of table flow came from. */ + uint8_t pad; + struct ofp_match match; /* Description of fields. */ + ovs_be32 duration_sec; /* Time flow has been alive in seconds. */ + ovs_be32 duration_nsec; /* Time flow has been alive in nanoseconds + beyond duration_sec. */ + ovs_be16 priority; /* Priority of the entry. Only meaningful + when this is not an exact-match entry. */ + ovs_be16 idle_timeout; /* Number of seconds idle before expiration. */ + ovs_be16 hard_timeout; /* Number of seconds before expiration. */ + uint8_t pad2[6]; /* Align to 64 bits. */ + ovs_32aligned_be64 cookie; /* Opaque controller-issued identifier. */ + ovs_32aligned_be64 packet_count; /* Number of packets in flow. */ + ovs_32aligned_be64 byte_count; /* Number of bytes in flow. */ + struct ofp_action_header actions[0]; /* Actions. */ +}; +OFP_ASSERT(sizeof(struct ofp_flow_stats) == 88); + +/* Reply to OFPST_AGGREGATE request. */ +struct ofp_aggregate_stats_reply { + struct ofp_stats_msg osm; + ovs_32aligned_be64 packet_count; /* Number of packets in flows. */ + ovs_32aligned_be64 byte_count; /* Number of bytes in flows. */ + ovs_be32 flow_count; /* Number of flows. */ + uint8_t pad[4]; /* Align to 64 bits. */ +}; +OFP_ASSERT(sizeof(struct ofp_aggregate_stats_reply) == 36); + +/* Body of reply to OFPST_TABLE request. */ +struct ofp_table_stats { + uint8_t table_id; /* Identifier of table. Lower numbered tables + are consulted first. */ + uint8_t pad[3]; /* Align to 32-bits. */ + char name[OFP_MAX_TABLE_NAME_LEN]; + ovs_be32 wildcards; /* Bitmap of OFPFW_* wildcards that are + supported by the table. */ + ovs_be32 max_entries; /* Max number of entries supported. */ + ovs_be32 active_count; /* Number of active entries. */ + ovs_32aligned_be64 lookup_count; /* # of packets looked up in table. */ + ovs_32aligned_be64 matched_count; /* Number of packets that hit table. */ +}; +OFP_ASSERT(sizeof(struct ofp_table_stats) == 64); + +/* Stats request of type OFPST_PORT. */ +struct ofp_port_stats_request { + struct ofp_stats_msg osm; + ovs_be16 port_no; /* OFPST_PORT message may request statistics + for a single port (specified with port_no) + or for all ports (port_no == OFPP_NONE). */ + uint8_t pad[6]; +}; +OFP_ASSERT(sizeof(struct ofp_port_stats_request) == 20); + +/* Body of reply to OFPST_PORT request. If a counter is unsupported, set + * the field to all ones. */ +struct ofp_port_stats { + ovs_be16 port_no; + uint8_t pad[6]; /* Align to 64-bits. */ + ovs_32aligned_be64 rx_packets; /* Number of received packets. */ + ovs_32aligned_be64 tx_packets; /* Number of transmitted packets. */ + ovs_32aligned_be64 rx_bytes; /* Number of received bytes. */ + ovs_32aligned_be64 tx_bytes; /* Number of transmitted bytes. */ + ovs_32aligned_be64 rx_dropped; /* Number of packets dropped by RX. */ + ovs_32aligned_be64 tx_dropped; /* Number of packets dropped by TX. */ + ovs_32aligned_be64 rx_errors; /* Number of receive errors. This is a + super-set of receive errors and should be + great than or equal to the sum of all + rx_*_err values. */ + ovs_32aligned_be64 tx_errors; /* Number of transmit errors. This is a + super-set of transmit errors. */ + ovs_32aligned_be64 rx_frame_err; /* Number of frame alignment errors. */ + ovs_32aligned_be64 rx_over_err; /* Number of packets with RX overrun. */ + ovs_32aligned_be64 rx_crc_err; /* Number of CRC errors. */ + ovs_32aligned_be64 collisions; /* Number of collisions. */ +}; +OFP_ASSERT(sizeof(struct ofp_port_stats) == 104); + +/* All ones is used to indicate all queues in a port (for stats retrieval). */ +#define OFPQ_ALL 0xffffffff + +/* Body for stats request of type OFPST_QUEUE. */ +struct ofp_queue_stats_request { + struct ofp_stats_msg osm; + ovs_be16 port_no; /* All ports if OFPP_ALL. */ + uint8_t pad[2]; /* Align to 32-bits. */ + ovs_be32 queue_id; /* All queues if OFPQ_ALL. */ +}; +OFP_ASSERT(sizeof(struct ofp_queue_stats_request) == 20); + +/* Body for stats reply of type OFPST_QUEUE consists of an array of this + * structure type. */ +struct ofp_queue_stats { + ovs_be16 port_no; + uint8_t pad[2]; /* Align to 32-bits. */ + ovs_be32 queue_id; /* Queue id. */ + ovs_32aligned_be64 tx_bytes; /* Number of transmitted bytes. */ + ovs_32aligned_be64 tx_packets; /* Number of transmitted packets. */ + ovs_32aligned_be64 tx_errors; /* # of packets dropped due to overrun. */ +}; +OFP_ASSERT(sizeof(struct ofp_queue_stats) == 32); + +/* Vendor extension stats message. */ +struct ofp_vendor_stats_msg { + struct ofp_stats_msg osm; /* Type OFPST_VENDOR. */ + ovs_be32 vendor; /* Vendor ID: + * - MSB 0: low-order bytes are IEEE OUI. + * - MSB != 0: defined by OpenFlow + * consortium. */ + /* Followed by vendor-defined arbitrary additional data. */ +}; +OFP_ASSERT(sizeof(struct ofp_vendor_stats_msg) == 16); + +/* Vendor extension. */ +struct ofp_vendor_header { + struct ofp_header header; /* Type OFPT_VENDOR. */ + ovs_be32 vendor; /* Vendor ID: + * - MSB 0: low-order bytes are IEEE OUI. + * - MSB != 0: defined by OpenFlow + * consortium. */ + /* Vendor-defined arbitrary additional data. */ +}; +OFP_ASSERT(sizeof(struct ofp_vendor_header) == 12); + +#endif /* openflow/openflow-1.0.h */ diff --git a/include/openflow/openflow.h b/include/openflow/openflow.h index cfdb1923..1c02da39 100644 --- a/include/openflow/openflow.h +++ b/include/openflow/openflow.h @@ -14,815 +14,9 @@ * limitations under the License. */ -/* OpenFlow: protocol between controller and datapath. */ - #ifndef OPENFLOW_OPENFLOW_H #define OPENFLOW_OPENFLOW_H 1 -#include "openvswitch/types.h" - -#ifdef SWIG -#define OFP_ASSERT(EXPR) /* SWIG can't handle OFP_ASSERT. */ -#elif !defined(__cplusplus) -/* Build-time assertion for use in a declaration context. */ -#define OFP_ASSERT(EXPR) \ - extern int (*build_assert(void))[ sizeof(struct { \ - unsigned int build_assert_failed : (EXPR) ? 1 : -1; })] -#else /* __cplusplus */ -#include -#define OFP_ASSERT BOOST_STATIC_ASSERT -#endif /* __cplusplus */ - -/* Version number: - * Non-experimental versions released: 0x01 - * Experimental versions released: 0x81 -- 0x99 - */ -/* The most significant bit being set in the version field indicates an - * experimental OpenFlow version. - */ -#define OFP_VERSION 0x01 -#define OFP10_VERSION 0x01 - -#define OFP_MAX_TABLE_NAME_LEN 32 -#define OFP_MAX_PORT_NAME_LEN 16 - -#define OFP_TCP_PORT 6633 -#define OFP_SSL_PORT 6633 - -#define OFP_ETH_ALEN 6 /* Bytes in an Ethernet address. */ - -/* Port numbering. Physical ports are numbered starting from 1. */ -enum ofp_port { - /* Maximum number of physical switch ports. */ - OFPP_MAX = 0xff00, - - /* Fake output "ports". */ - OFPP_IN_PORT = 0xfff8, /* Send the packet out the input port. This - virtual port must be explicitly used - in order to send back out of the input - port. */ - OFPP_TABLE = 0xfff9, /* Perform actions in flow table. - NB: This can only be the destination - port for packet-out messages. */ - OFPP_NORMAL = 0xfffa, /* Process with normal L2/L3 switching. */ - OFPP_FLOOD = 0xfffb, /* All physical ports except input port and - those disabled by STP. */ - OFPP_ALL = 0xfffc, /* All physical ports except input port. */ - OFPP_CONTROLLER = 0xfffd, /* Send to controller. */ - OFPP_LOCAL = 0xfffe, /* Local openflow "port". */ - OFPP_NONE = 0xffff /* Not associated with a physical port. */ -}; - -enum ofp_type { - /* Immutable messages. */ - OFPT_HELLO, /* Symmetric message */ - OFPT_ERROR, /* Symmetric message */ - OFPT_ECHO_REQUEST, /* Symmetric message */ - OFPT_ECHO_REPLY, /* Symmetric message */ - OFPT_VENDOR, /* Symmetric message */ - - /* Switch configuration messages. */ - OFPT_FEATURES_REQUEST, /* Controller/switch message */ - OFPT_FEATURES_REPLY, /* Controller/switch message */ - OFPT_GET_CONFIG_REQUEST, /* Controller/switch message */ - OFPT_GET_CONFIG_REPLY, /* Controller/switch message */ - OFPT_SET_CONFIG, /* Controller/switch message */ - - /* Asynchronous messages. */ - OFPT_PACKET_IN, /* Async message */ - OFPT_FLOW_REMOVED, /* Async message */ - OFPT_PORT_STATUS, /* Async message */ - - /* Controller command messages. */ - OFPT_PACKET_OUT, /* Controller/switch message */ - OFPT_FLOW_MOD, /* Controller/switch message */ - OFPT_PORT_MOD, /* Controller/switch message */ - - /* Statistics messages. */ - OFPT_STATS_REQUEST, /* Controller/switch message */ - OFPT_STATS_REPLY, /* Controller/switch message */ - - /* Barrier messages. */ - OFPT_BARRIER_REQUEST, /* Controller/switch message */ - OFPT_BARRIER_REPLY, /* Controller/switch message */ - - /* Queue Configuration messages. */ - OFPT_QUEUE_GET_CONFIG_REQUEST, /* Controller/switch message */ - OFPT_QUEUE_GET_CONFIG_REPLY /* Controller/switch message */ -}; - -/* Header on all OpenFlow packets. */ -struct ofp_header { - uint8_t version; /* OFP_VERSION. */ - uint8_t type; /* One of the OFPT_ constants. */ - ovs_be16 length; /* Length including this ofp_header. */ - ovs_be32 xid; /* Transaction id associated with this packet. - Replies use the same id as was in the request - to facilitate pairing. */ -}; -OFP_ASSERT(sizeof(struct ofp_header) == 8); - -/* OFPT_HELLO. This message has an empty body, but implementations must - * ignore any data included in the body, to allow for future extensions. */ -struct ofp_hello { - struct ofp_header header; -}; - -#define OFP_DEFAULT_MISS_SEND_LEN 128 - -enum ofp_config_flags { - /* Handling of IP fragments. */ - OFPC_FRAG_NORMAL = 0, /* No special handling for fragments. */ - OFPC_FRAG_DROP = 1, /* Drop fragments. */ - OFPC_FRAG_REASM = 2, /* Reassemble (only if OFPC_IP_REASM set). */ - OFPC_FRAG_NX_MATCH = 3, /* Make first fragments available for matching. */ - OFPC_FRAG_MASK = 3, - - /* TTL processing - applicable for IP and MPLS packets. */ - OFPC_INVALID_TTL_TO_CONTROLLER = 1 << 2, /* Send packets with invalid TTL - to the controller. */ -}; - -/* Switch configuration. */ -struct ofp_switch_config { - struct ofp_header header; - ovs_be16 flags; /* OFPC_* flags. */ - ovs_be16 miss_send_len; /* Max bytes of new flow that datapath should - send to the controller. */ -}; -OFP_ASSERT(sizeof(struct ofp_switch_config) == 12); - -/* Capabilities supported by the datapath. */ -enum ofp_capabilities { - OFPC_FLOW_STATS = 1 << 0, /* Flow statistics. */ - OFPC_TABLE_STATS = 1 << 1, /* Table statistics. */ - OFPC_PORT_STATS = 1 << 2, /* Port statistics. */ - OFPC_STP = 1 << 3, /* 802.1d spanning tree. */ - OFPC_RESERVED = 1 << 4, /* Reserved, must not be set. */ - OFPC_IP_REASM = 1 << 5, /* Can reassemble IP fragments. */ - OFPC_QUEUE_STATS = 1 << 6, /* Queue statistics. */ - OFPC_ARP_MATCH_IP = 1 << 7 /* Match IP addresses in ARP - pkts. */ -}; - -/* Flags to indicate behavior of the physical port. These flags are - * used in ofp_phy_port to describe the current configuration. They are - * used in the ofp_port_mod message to configure the port's behavior. - */ -enum ofp_port_config { - OFPPC_PORT_DOWN = 1 << 0, /* Port is administratively down. */ - - OFPPC_NO_STP = 1 << 1, /* Disable 802.1D spanning tree on port. */ - OFPPC_NO_RECV = 1 << 2, /* Drop all packets except 802.1D - spanning tree packets. */ - OFPPC_NO_RECV_STP = 1 << 3, /* Drop received 802.1D STP packets. */ - OFPPC_NO_FLOOD = 1 << 4, /* Do not include this port when flooding. */ - OFPPC_NO_FWD = 1 << 5, /* Drop packets forwarded to port. */ - OFPPC_NO_PACKET_IN = 1 << 6 /* Do not send packet-in msgs for port. */ -}; - -/* Current state of the physical port. These are not configurable from - * the controller. - */ -enum ofp_port_state { - OFPPS_LINK_DOWN = 1 << 0, /* No physical link present. */ - - /* The OFPPS_STP_* bits have no effect on switch operation. The - * controller must adjust OFPPC_NO_RECV, OFPPC_NO_FWD, and - * OFPPC_NO_PACKET_IN appropriately to fully implement an 802.1D spanning - * tree. */ - OFPPS_STP_LISTEN = 0 << 8, /* Not learning or relaying frames. */ - OFPPS_STP_LEARN = 1 << 8, /* Learning but not relaying frames. */ - OFPPS_STP_FORWARD = 2 << 8, /* Learning and relaying frames. */ - OFPPS_STP_BLOCK = 3 << 8, /* Not part of spanning tree. */ - OFPPS_STP_MASK = 3 << 8 /* Bit mask for OFPPS_STP_* values. */ -}; - -/* Features of physical ports available in a datapath. */ -enum ofp_port_features { - OFPPF_10MB_HD = 1 << 0, /* 10 Mb half-duplex rate support. */ - OFPPF_10MB_FD = 1 << 1, /* 10 Mb full-duplex rate support. */ - OFPPF_100MB_HD = 1 << 2, /* 100 Mb half-duplex rate support. */ - OFPPF_100MB_FD = 1 << 3, /* 100 Mb full-duplex rate support. */ - OFPPF_1GB_HD = 1 << 4, /* 1 Gb half-duplex rate support. */ - OFPPF_1GB_FD = 1 << 5, /* 1 Gb full-duplex rate support. */ - OFPPF_10GB_FD = 1 << 6, /* 10 Gb full-duplex rate support. */ - OFPPF_COPPER = 1 << 7, /* Copper medium. */ - OFPPF_FIBER = 1 << 8, /* Fiber medium. */ - OFPPF_AUTONEG = 1 << 9, /* Auto-negotiation. */ - OFPPF_PAUSE = 1 << 10, /* Pause. */ - OFPPF_PAUSE_ASYM = 1 << 11 /* Asymmetric pause. */ -}; - -/* Description of a physical port */ -struct ofp_phy_port { - ovs_be16 port_no; - uint8_t hw_addr[OFP_ETH_ALEN]; - char name[OFP_MAX_PORT_NAME_LEN]; /* Null-terminated */ - - ovs_be32 config; /* Bitmap of OFPPC_* flags. */ - ovs_be32 state; /* Bitmap of OFPPS_* flags. */ - - /* Bitmaps of OFPPF_* that describe features. All bits zeroed if - * unsupported or unavailable. */ - ovs_be32 curr; /* Current features. */ - ovs_be32 advertised; /* Features being advertised by the port. */ - ovs_be32 supported; /* Features supported by the port. */ - ovs_be32 peer; /* Features advertised by peer. */ -}; -OFP_ASSERT(sizeof(struct ofp_phy_port) == 48); - -/* Switch features. */ -struct ofp_switch_features { - struct ofp_header header; - ovs_be64 datapath_id; /* Datapath unique ID. The lower 48-bits are for - a MAC address, while the upper 16-bits are - implementer-defined. */ - - ovs_be32 n_buffers; /* Max packets buffered at once. */ - - uint8_t n_tables; /* Number of tables supported by datapath. */ - uint8_t pad[3]; /* Align to 64-bits. */ - - /* Features. */ - ovs_be32 capabilities; /* Bitmap of support "ofp_capabilities". */ - ovs_be32 actions; /* Bitmap of supported "ofp_action_type"s. */ - - /* Port info.*/ - struct ofp_phy_port ports[0]; /* Port definitions. The number of ports - is inferred from the length field in - the header. */ -}; -OFP_ASSERT(sizeof(struct ofp_switch_features) == 32); - -/* What changed about the physical port */ -enum ofp_port_reason { - OFPPR_ADD, /* The port was added. */ - OFPPR_DELETE, /* The port was removed. */ - OFPPR_MODIFY /* Some attribute of the port has changed. */ -}; - -/* A physical port has changed in the datapath */ -struct ofp_port_status { - struct ofp_header header; - uint8_t reason; /* One of OFPPR_*. */ - uint8_t pad[7]; /* Align to 64-bits. */ - struct ofp_phy_port desc; -}; -OFP_ASSERT(sizeof(struct ofp_port_status) == 64); - -/* Modify behavior of the physical port */ -struct ofp_port_mod { - struct ofp_header header; - ovs_be16 port_no; - uint8_t hw_addr[OFP_ETH_ALEN]; /* 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 struct. */ - - ovs_be32 config; /* Bitmap of OFPPC_* flags. */ - ovs_be32 mask; /* Bitmap of OFPPC_* flags to be changed. */ - - ovs_be32 advertise; /* Bitmap of "ofp_port_features"s. Zero all - bits to prevent any action taking place. */ - uint8_t pad[4]; /* Pad to 64-bits. */ -}; -OFP_ASSERT(sizeof(struct ofp_port_mod) == 32); - -/* Why is this packet being sent to the controller? */ -enum ofp_packet_in_reason { - OFPR_NO_MATCH, /* No matching flow. */ - OFPR_ACTION, /* Action explicitly output to controller. */ - OFPR_INVALID_TTL, /* Packet has invalid TTL. */ - OFPR_N_REASONS -}; - -/* Packet received on port (datapath -> controller). */ -struct ofp_packet_in { - struct ofp_header header; - ovs_be32 buffer_id; /* ID assigned by datapath. */ - ovs_be16 total_len; /* Full length of frame. */ - ovs_be16 in_port; /* Port on which frame was received. */ - uint8_t reason; /* Reason packet is being sent (one of OFPR_*) */ - uint8_t pad; - uint8_t data[0]; /* 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. */ -}; -OFP_ASSERT(sizeof(struct ofp_packet_in) == 20); - -enum ofp_action_type { - OFPAT_OUTPUT, /* Output to switch port. */ - OFPAT_SET_VLAN_VID, /* Set the 802.1q VLAN id. */ - OFPAT_SET_VLAN_PCP, /* Set the 802.1q priority. */ - OFPAT_STRIP_VLAN, /* Strip the 802.1q header. */ - OFPAT_SET_DL_SRC, /* Ethernet source address. */ - OFPAT_SET_DL_DST, /* Ethernet destination address. */ - OFPAT_SET_NW_SRC, /* IP source address. */ - OFPAT_SET_NW_DST, /* IP destination address. */ - OFPAT_SET_NW_TOS, /* IP ToS (DSCP field, 6 bits). */ - OFPAT_SET_TP_SRC, /* TCP/UDP source port. */ - OFPAT_SET_TP_DST, /* TCP/UDP destination port. */ - OFPAT_ENQUEUE, /* Output to queue. */ - OFPAT_VENDOR = 0xffff -}; - -/* Action structure for OFPAT_OUTPUT, which sends packets out 'port'. - * When the 'port' is the OFPP_CONTROLLER, 'max_len' indicates the max - * number of bytes to send. A 'max_len' of zero means no bytes of the - * packet should be sent. */ -struct ofp_action_output { - ovs_be16 type; /* OFPAT_OUTPUT. */ - ovs_be16 len; /* Length is 8. */ - ovs_be16 port; /* Output port. */ - ovs_be16 max_len; /* Max length to send to controller. */ -}; -OFP_ASSERT(sizeof(struct ofp_action_output) == 8); - -/* The VLAN id is 12 bits, so we can use the entire 16 bits to indicate - * special conditions. All ones is used to match that no VLAN id was - * set. */ -#define OFP_VLAN_NONE 0xffff - -/* Action structure for OFPAT_SET_VLAN_VID. */ -struct ofp_action_vlan_vid { - ovs_be16 type; /* OFPAT_SET_VLAN_VID. */ - ovs_be16 len; /* Length is 8. */ - ovs_be16 vlan_vid; /* VLAN id. */ - uint8_t pad[2]; -}; -OFP_ASSERT(sizeof(struct ofp_action_vlan_vid) == 8); - -/* Action structure for OFPAT_SET_VLAN_PCP. */ -struct ofp_action_vlan_pcp { - ovs_be16 type; /* OFPAT_SET_VLAN_PCP. */ - ovs_be16 len; /* Length is 8. */ - uint8_t vlan_pcp; /* VLAN priority. */ - uint8_t pad[3]; -}; -OFP_ASSERT(sizeof(struct ofp_action_vlan_pcp) == 8); - -/* Action structure for OFPAT_SET_DL_SRC/DST. */ -struct ofp_action_dl_addr { - ovs_be16 type; /* OFPAT_SET_DL_SRC/DST. */ - ovs_be16 len; /* Length is 16. */ - uint8_t dl_addr[OFP_ETH_ALEN]; /* Ethernet address. */ - uint8_t pad[6]; -}; -OFP_ASSERT(sizeof(struct ofp_action_dl_addr) == 16); - -/* Action structure for OFPAT_SET_NW_SRC/DST. */ -struct ofp_action_nw_addr { - ovs_be16 type; /* OFPAT_SET_TW_SRC/DST. */ - ovs_be16 len; /* Length is 8. */ - ovs_be32 nw_addr; /* IP address. */ -}; -OFP_ASSERT(sizeof(struct ofp_action_nw_addr) == 8); - -/* Action structure for OFPAT_SET_NW_TOS. */ -struct ofp_action_nw_tos { - ovs_be16 type; /* OFPAT_SET_TW_TOS. */ - ovs_be16 len; /* Length is 8. */ - uint8_t nw_tos; /* IP TOS (DSCP field, 6 bits). */ - uint8_t pad[3]; -}; -OFP_ASSERT(sizeof(struct ofp_action_nw_tos) == 8); - -/* Action structure for OFPAT_SET_TP_SRC/DST. */ -struct ofp_action_tp_port { - ovs_be16 type; /* OFPAT_SET_TP_SRC/DST. */ - ovs_be16 len; /* Length is 8. */ - ovs_be16 tp_port; /* TCP/UDP port. */ - uint8_t pad[2]; -}; -OFP_ASSERT(sizeof(struct ofp_action_tp_port) == 8); - -/* Action header for OFPAT_VENDOR. The rest of the body is vendor-defined. */ -struct ofp_action_vendor_header { - ovs_be16 type; /* OFPAT_VENDOR. */ - ovs_be16 len; /* Length is a multiple of 8. */ - ovs_be32 vendor; /* Vendor ID, which takes the same form - as in "struct ofp_vendor_header". */ -}; -OFP_ASSERT(sizeof(struct ofp_action_vendor_header) == 8); - -/* Action header that is common to all actions. The length includes the - * header and any padding used to make the action 64-bit aligned. - * NB: The length of an action *must* always be a multiple of eight. */ -struct ofp_action_header { - ovs_be16 type; /* One of OFPAT_*. */ - ovs_be16 len; /* Length of action, including this - header. This is the length of action, - including any padding to make it - 64-bit aligned. */ - uint8_t pad[4]; -}; -OFP_ASSERT(sizeof(struct ofp_action_header) == 8); - -/* OFPAT_ENQUEUE action struct: send packets to given queue on port. */ -struct ofp_action_enqueue { - ovs_be16 type; /* OFPAT_ENQUEUE. */ - ovs_be16 len; /* Len is 16. */ - ovs_be16 port; /* Port that queue belongs. Should - refer to a valid physical port - (i.e. < OFPP_MAX) or OFPP_IN_PORT. */ - uint8_t pad[6]; /* Pad for 64-bit alignment. */ - ovs_be32 queue_id; /* Where to enqueue the packets. */ -}; -OFP_ASSERT(sizeof(struct ofp_action_enqueue) == 16); - -union ofp_action { - ovs_be16 type; - struct ofp_action_header header; - struct ofp_action_vendor_header vendor; - struct ofp_action_output output; - struct ofp_action_vlan_vid vlan_vid; - struct ofp_action_vlan_pcp vlan_pcp; - struct ofp_action_nw_addr nw_addr; - struct ofp_action_nw_tos nw_tos; - struct ofp_action_tp_port tp_port; -}; -OFP_ASSERT(sizeof(union ofp_action) == 8); - -/* Send packet (controller -> datapath). */ -struct ofp_packet_out { - struct ofp_header header; - ovs_be32 buffer_id; /* ID assigned by datapath or UINT32_MAX. */ - ovs_be16 in_port; /* Packet's input port (OFPP_NONE if none). */ - ovs_be16 actions_len; /* Size of action array in bytes. */ - /* Followed by: - * - Exactly 'actions_len' bytes (possibly 0 bytes, and always a multiple - * of 8) containing actions. - * - If 'buffer_id' == UINT32_MAX, packet data to fill out the remainder - * of the message length. - */ -}; -OFP_ASSERT(sizeof(struct ofp_packet_out) == 16); - -enum ofp_flow_mod_command { - OFPFC_ADD, /* New flow. */ - OFPFC_MODIFY, /* Modify all matching flows. */ - OFPFC_MODIFY_STRICT, /* Modify entry strictly matching wildcards */ - OFPFC_DELETE, /* Delete all matching flows. */ - OFPFC_DELETE_STRICT /* Strictly match wildcards and priority. */ -}; - -/* Flow wildcards. */ -enum ofp_flow_wildcards { - OFPFW_IN_PORT = 1 << 0, /* Switch input port. */ - OFPFW_DL_VLAN = 1 << 1, /* VLAN vid. */ - OFPFW_DL_SRC = 1 << 2, /* Ethernet source address. */ - OFPFW_DL_DST = 1 << 3, /* Ethernet destination address. */ - OFPFW_DL_TYPE = 1 << 4, /* Ethernet frame type. */ - OFPFW_NW_PROTO = 1 << 5, /* IP protocol. */ - OFPFW_TP_SRC = 1 << 6, /* TCP/UDP source port. */ - OFPFW_TP_DST = 1 << 7, /* TCP/UDP destination port. */ - - /* IP source address wildcard bit count. 0 is exact match, 1 ignores the - * LSB, 2 ignores the 2 least-significant bits, ..., 32 and higher wildcard - * the entire field. This is the *opposite* of the usual convention where - * e.g. /24 indicates that 8 bits (not 24 bits) are wildcarded. */ - OFPFW_NW_SRC_SHIFT = 8, - OFPFW_NW_SRC_BITS = 6, - OFPFW_NW_SRC_MASK = ((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT, - OFPFW_NW_SRC_ALL = 32 << OFPFW_NW_SRC_SHIFT, - - /* IP destination address wildcard bit count. Same format as source. */ - OFPFW_NW_DST_SHIFT = 14, - OFPFW_NW_DST_BITS = 6, - OFPFW_NW_DST_MASK = ((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT, - OFPFW_NW_DST_ALL = 32 << OFPFW_NW_DST_SHIFT, - - OFPFW_DL_VLAN_PCP = 1 << 20, /* VLAN priority. */ - OFPFW_NW_TOS = 1 << 21, /* IP ToS (DSCP field, 6 bits). */ - - /* Wildcard all fields. */ - OFPFW_ALL = ((1 << 22) - 1) -}; - -/* The wildcards for ICMP type and code fields use the transport source - * and destination port fields, respectively. */ -#define OFPFW_ICMP_TYPE OFPFW_TP_SRC -#define OFPFW_ICMP_CODE OFPFW_TP_DST - -/* Values below this cutoff are 802.3 packets and the two bytes - * following MAC addresses are used as a frame length. Otherwise, the - * two bytes are used as the Ethernet type. - */ -#define OFP_DL_TYPE_ETH2_CUTOFF 0x0600 - -/* Value of dl_type to indicate that the frame does not include an - * Ethernet type. - */ -#define OFP_DL_TYPE_NOT_ETH_TYPE 0x05ff - -/* The VLAN id is 12-bits, so we can use the entire 16 bits to indicate - * special conditions. All ones indicates that no VLAN id was set. - */ -#define OFP_VLAN_NONE 0xffff - -/* Fields to match against flows */ -struct ofp_match { - ovs_be32 wildcards; /* Wildcard fields. */ - ovs_be16 in_port; /* Input switch port. */ - uint8_t dl_src[OFP_ETH_ALEN]; /* Ethernet source address. */ - uint8_t dl_dst[OFP_ETH_ALEN]; /* Ethernet destination address. */ - ovs_be16 dl_vlan; /* Input VLAN. */ - uint8_t dl_vlan_pcp; /* Input VLAN priority. */ - uint8_t pad1[1]; /* Align to 64-bits. */ - ovs_be16 dl_type; /* Ethernet frame type. */ - uint8_t nw_tos; /* IP ToS (DSCP field, 6 bits). */ - uint8_t nw_proto; /* IP protocol or lower 8 bits of - ARP opcode. */ - uint8_t pad2[2]; /* Align to 64-bits. */ - ovs_be32 nw_src; /* IP source address. */ - ovs_be32 nw_dst; /* IP destination address. */ - ovs_be16 tp_src; /* TCP/UDP source port. */ - ovs_be16 tp_dst; /* TCP/UDP destination port. */ -}; -OFP_ASSERT(sizeof(struct ofp_match) == 40); - -/* Value used in "idle_timeout" and "hard_timeout" to indicate that the entry - * is permanent. */ -#define OFP_FLOW_PERMANENT 0 - -/* By default, choose a priority in the middle. */ -#define OFP_DEFAULT_PRIORITY 0x8000 - -enum ofp_flow_mod_flags { - OFPFF_SEND_FLOW_REM = 1 << 0, /* Send flow removed message when flow - * expires or is deleted. */ - OFPFF_CHECK_OVERLAP = 1 << 1, /* Check for overlapping entries first. */ - OFPFF_EMERG = 1 << 2 /* Ramark this is for emergency. */ -}; - -/* Flow setup and teardown (controller -> datapath). */ -struct ofp_flow_mod { - struct ofp_header header; - struct ofp_match match; /* Fields to match */ - ovs_be64 cookie; /* Opaque controller-issued identifier. */ - - /* Flow actions. */ - ovs_be16 command; /* One of OFPFC_*. */ - ovs_be16 idle_timeout; /* Idle time before discarding (seconds). */ - ovs_be16 hard_timeout; /* Max time before discarding (seconds). */ - ovs_be16 priority; /* Priority level of flow entry. */ - ovs_be32 buffer_id; /* Buffered packet to apply to (or -1). - Not meaningful for OFPFC_DELETE*. */ - ovs_be16 out_port; /* For OFPFC_DELETE* commands, require - matching entries to include this as an - output port. A value of OFPP_NONE - indicates no restriction. */ - ovs_be16 flags; /* One of OFPFF_*. */ - struct ofp_action_header actions[0]; /* The action length is inferred - from the length field in the - header. */ -}; -OFP_ASSERT(sizeof(struct ofp_flow_mod) == 72); - -/* Why was this flow removed? */ -enum ofp_flow_removed_reason { - OFPRR_IDLE_TIMEOUT, /* Flow idle time exceeded idle_timeout. */ - OFPRR_HARD_TIMEOUT, /* Time exceeded hard_timeout. */ - OFPRR_DELETE /* Evicted by a DELETE flow mod. */ -}; - -/* Flow removed (datapath -> controller). */ -struct ofp_flow_removed { - struct ofp_header header; - struct ofp_match match; /* Description of fields. */ - ovs_be64 cookie; /* Opaque controller-issued identifier. */ - - ovs_be16 priority; /* Priority level of flow entry. */ - uint8_t reason; /* One of OFPRR_*. */ - uint8_t pad[1]; /* Align to 32-bits. */ - - ovs_be32 duration_sec; /* Time flow was alive in seconds. */ - ovs_be32 duration_nsec; /* Time flow was alive in nanoseconds beyond - duration_sec. */ - ovs_be16 idle_timeout; /* Idle timeout from original flow mod. */ - uint8_t pad2[2]; /* Align to 64-bits. */ - ovs_be64 packet_count; - ovs_be64 byte_count; -}; -OFP_ASSERT(sizeof(struct ofp_flow_removed) == 88); - -/* OFPT_ERROR: Error message (datapath -> controller). */ -struct ofp_error_msg { - struct ofp_header header; - - ovs_be16 type; - ovs_be16 code; - uint8_t data[0]; /* Variable-length data. Interpreted based - on the type and code. */ -}; -OFP_ASSERT(sizeof(struct ofp_error_msg) == 12); - -enum ofp_stats_types { - /* Description of this OpenFlow switch. - * The request is struct ofp_stats_msg. - * The reply is struct ofp_desc_stats. */ - OFPST_DESC, - - /* Individual flow statistics. - * The request is struct ofp_flow_stats_request. - * The reply body is an array of struct ofp_flow_stats. */ - OFPST_FLOW, - - /* Aggregate flow statistics. - * The request is struct ofp_flow_stats_request. - * The reply is struct ofp_aggregate_stats_reply. */ - OFPST_AGGREGATE, - - /* Flow table statistics. - * The request is struct ofp_stats_msg. - * The reply body is an array of struct ofp_table_stats. */ - OFPST_TABLE, - - /* Physical port statistics. - * The request is struct ofp_port_stats_request. - * The reply body is an array of struct ofp_port_stats. */ - OFPST_PORT, - - /* Queue statistics for a port. - * The request body is struct ofp_queue_stats_request. - * The reply body is an array of struct ofp_queue_stats. */ - OFPST_QUEUE, - - /* Vendor extension. - * The request and reply begin with "struct ofp_vendor_stats". */ - OFPST_VENDOR = 0xffff -}; - -/* Statistics request or reply message. */ -struct ofp_stats_msg { - struct ofp_header header; - ovs_be16 type; /* One of the OFPST_* constants. */ - ovs_be16 flags; /* Requests: always 0. - * Replies: 0 or OFPSF_REPLY_MORE. */ -}; -OFP_ASSERT(sizeof(struct ofp_stats_msg) == 12); - -enum ofp_stats_reply_flags { - OFPSF_REPLY_MORE = 1 << 0 /* More replies to follow. */ -}; - -#define DESC_STR_LEN 256 -#define SERIAL_NUM_LEN 32 -/* Reply to OFPST_DESC request. Each entry is a NULL-terminated ASCII - * string. */ -struct ofp_desc_stats { - struct ofp_stats_msg osm; - char mfr_desc[DESC_STR_LEN]; /* Manufacturer description. */ - char hw_desc[DESC_STR_LEN]; /* Hardware description. */ - char sw_desc[DESC_STR_LEN]; /* Software description. */ - char serial_num[SERIAL_NUM_LEN]; /* Serial number. */ - char dp_desc[DESC_STR_LEN]; /* Human readable description of - the datapath. */ -}; -OFP_ASSERT(sizeof(struct ofp_desc_stats) == 1068); - -/* Stats request of type OFPST_AGGREGATE or OFPST_FLOW. */ -struct ofp_flow_stats_request { - struct ofp_stats_msg osm; - struct ofp_match match; /* Fields to match. */ - uint8_t table_id; /* ID of table to read (from ofp_table_stats) - or 0xff for all tables. */ - uint8_t pad; /* Align to 32 bits. */ - ovs_be16 out_port; /* Require matching entries to include this - as an output port. A value of OFPP_NONE - indicates no restriction. */ -}; -OFP_ASSERT(sizeof(struct ofp_flow_stats_request) == 56); - -/* Body of reply to OFPST_FLOW request. */ -struct ofp_flow_stats { - ovs_be16 length; /* Length of this entry. */ - uint8_t table_id; /* ID of table flow came from. */ - uint8_t pad; - struct ofp_match match; /* Description of fields. */ - ovs_be32 duration_sec; /* Time flow has been alive in seconds. */ - ovs_be32 duration_nsec; /* Time flow has been alive in nanoseconds - beyond duration_sec. */ - ovs_be16 priority; /* Priority of the entry. Only meaningful - when this is not an exact-match entry. */ - ovs_be16 idle_timeout; /* Number of seconds idle before expiration. */ - ovs_be16 hard_timeout; /* Number of seconds before expiration. */ - uint8_t pad2[6]; /* Align to 64 bits. */ - ovs_32aligned_be64 cookie; /* Opaque controller-issued identifier. */ - ovs_32aligned_be64 packet_count; /* Number of packets in flow. */ - ovs_32aligned_be64 byte_count; /* Number of bytes in flow. */ - struct ofp_action_header actions[0]; /* Actions. */ -}; -OFP_ASSERT(sizeof(struct ofp_flow_stats) == 88); - -/* Reply to OFPST_AGGREGATE request. */ -struct ofp_aggregate_stats_reply { - struct ofp_stats_msg osm; - ovs_32aligned_be64 packet_count; /* Number of packets in flows. */ - ovs_32aligned_be64 byte_count; /* Number of bytes in flows. */ - ovs_be32 flow_count; /* Number of flows. */ - uint8_t pad[4]; /* Align to 64 bits. */ -}; -OFP_ASSERT(sizeof(struct ofp_aggregate_stats_reply) == 36); - -/* Body of reply to OFPST_TABLE request. */ -struct ofp_table_stats { - uint8_t table_id; /* Identifier of table. Lower numbered tables - are consulted first. */ - uint8_t pad[3]; /* Align to 32-bits. */ - char name[OFP_MAX_TABLE_NAME_LEN]; - ovs_be32 wildcards; /* Bitmap of OFPFW_* wildcards that are - supported by the table. */ - ovs_be32 max_entries; /* Max number of entries supported. */ - ovs_be32 active_count; /* Number of active entries. */ - ovs_32aligned_be64 lookup_count; /* # of packets looked up in table. */ - ovs_32aligned_be64 matched_count; /* Number of packets that hit table. */ -}; -OFP_ASSERT(sizeof(struct ofp_table_stats) == 64); - -/* Stats request of type OFPST_PORT. */ -struct ofp_port_stats_request { - struct ofp_stats_msg osm; - ovs_be16 port_no; /* OFPST_PORT message may request statistics - for a single port (specified with port_no) - or for all ports (port_no == OFPP_NONE). */ - uint8_t pad[6]; -}; -OFP_ASSERT(sizeof(struct ofp_port_stats_request) == 20); - -/* Body of reply to OFPST_PORT request. If a counter is unsupported, set - * the field to all ones. */ -struct ofp_port_stats { - ovs_be16 port_no; - uint8_t pad[6]; /* Align to 64-bits. */ - ovs_32aligned_be64 rx_packets; /* Number of received packets. */ - ovs_32aligned_be64 tx_packets; /* Number of transmitted packets. */ - ovs_32aligned_be64 rx_bytes; /* Number of received bytes. */ - ovs_32aligned_be64 tx_bytes; /* Number of transmitted bytes. */ - ovs_32aligned_be64 rx_dropped; /* Number of packets dropped by RX. */ - ovs_32aligned_be64 tx_dropped; /* Number of packets dropped by TX. */ - ovs_32aligned_be64 rx_errors; /* Number of receive errors. This is a - super-set of receive errors and should be - great than or equal to the sum of all - rx_*_err values. */ - ovs_32aligned_be64 tx_errors; /* Number of transmit errors. This is a - super-set of transmit errors. */ - ovs_32aligned_be64 rx_frame_err; /* Number of frame alignment errors. */ - ovs_32aligned_be64 rx_over_err; /* Number of packets with RX overrun. */ - ovs_32aligned_be64 rx_crc_err; /* Number of CRC errors. */ - ovs_32aligned_be64 collisions; /* Number of collisions. */ -}; -OFP_ASSERT(sizeof(struct ofp_port_stats) == 104); - -/* All ones is used to indicate all queues in a port (for stats retrieval). */ -#define OFPQ_ALL 0xffffffff - -/* Body for stats request of type OFPST_QUEUE. */ -struct ofp_queue_stats_request { - struct ofp_stats_msg osm; - ovs_be16 port_no; /* All ports if OFPP_ALL. */ - uint8_t pad[2]; /* Align to 32-bits. */ - ovs_be32 queue_id; /* All queues if OFPQ_ALL. */ -}; -OFP_ASSERT(sizeof(struct ofp_queue_stats_request) == 20); - -/* Body for stats reply of type OFPST_QUEUE consists of an array of this - * structure type. */ -struct ofp_queue_stats { - ovs_be16 port_no; - uint8_t pad[2]; /* Align to 32-bits. */ - ovs_be32 queue_id; /* Queue id. */ - ovs_32aligned_be64 tx_bytes; /* Number of transmitted bytes. */ - ovs_32aligned_be64 tx_packets; /* Number of transmitted packets. */ - ovs_32aligned_be64 tx_errors; /* # of packets dropped due to overrun. */ -}; -OFP_ASSERT(sizeof(struct ofp_queue_stats) == 32); - -/* Vendor extension stats message. */ -struct ofp_vendor_stats_msg { - struct ofp_stats_msg osm; /* Type OFPST_VENDOR. */ - ovs_be32 vendor; /* Vendor ID: - * - MSB 0: low-order bytes are IEEE OUI. - * - MSB != 0: defined by OpenFlow - * consortium. */ - /* Followed by vendor-defined arbitrary additional data. */ -}; -OFP_ASSERT(sizeof(struct ofp_vendor_stats_msg) == 16); - -/* Vendor extension. */ -struct ofp_vendor_header { - struct ofp_header header; /* Type OFPT_VENDOR. */ - ovs_be32 vendor; /* Vendor ID: - * - MSB 0: low-order bytes are IEEE OUI. - * - MSB != 0: defined by OpenFlow - * consortium. */ - /* Vendor-defined arbitrary additional data. */ -}; -OFP_ASSERT(sizeof(struct ofp_vendor_header) == 12); +#include "openflow/openflow-1.0.h" #endif /* openflow/openflow.h */