/*
- * Copyright (c) 2008, 2009 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#define OFP_PACKED /* SWIG doesn't understand __attribute. */
#endif
+/* 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.
+ * experimental OpenFlow version.
*/
-#define OFP_VERSION 0x98
+#define OFP_VERSION 0x01
#define OFP_MAX_TABLE_NAME_LEN 32
#define OFP_MAX_PORT_NAME_LEN 16
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
+ 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.
+ 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
+ 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_CONTROLLER = 0xfffd, /* Send to controller. */
OFPP_LOCAL = 0xfffe, /* Local openflow "port". */
OFPP_NONE = 0xffff /* Not associated with a physical port. */
};
/* Barrier messages. */
OFPT_BARRIER_REQUEST, /* Controller/switch message */
- OFPT_BARRIER_REPLY /* 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. */
OFPC_TABLE_STATS = 1 << 1, /* Table statistics. */
OFPC_PORT_STATS = 1 << 2, /* Port statistics. */
OFPC_STP = 1 << 3, /* 802.1d spanning tree. */
- OFPC_MULTI_PHY_TX = 1 << 4, /* Supports transmitting through multiple
- physical interfaces */
- OFPC_IP_REASM = 1 << 5 /* Can reassemble IP fragments. */
+ 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.
+ * 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. */
/* Switch features. */
struct ofp_switch_features {
struct ofp_header header;
- uint64_t datapath_id; /* Datapath unique ID. Only the lower 48-bits
- are meaningful. */
+ uint64_t datapath_id; /* Datapath unique ID. The lower 48-bits are for
+ a MAC address, while the upper 16-bits are
+ implementer-defined. */
uint32_t n_buffers; /* Max packets buffered at once. */
struct ofp_port_mod {
struct ofp_header header;
uint16_t 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
+ 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. */
uint32_t config; /* Bitmap of OFPPC_* flags. */
uint32_t mask; /* Bitmap of OFPPC_* flags to be changed. */
- uint32_t advertise; /* Bitmap of "ofp_port_features"s. Zero all
+ uint32_t advertise; /* Bitmap of "ofp_port_features"s. Zero all
bits to prevent any action taking place. */
uint8_t pad[4]; /* Pad to 64-bits. */
};
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
+ 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) ==
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_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
+/* 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 {
struct ofp_action_nw_tos {
uint16_t type; /* OFPAT_SET_TW_TOS. */
uint16_t len; /* Length is 8. */
- uint8_t nw_tos; /* IP ToS/DSCP (6 bits). */
+ uint8_t nw_tos; /* IP TOS (DSCP field, 6 bits). */
uint8_t pad[3];
};
OFP_ASSERT(sizeof(struct ofp_action_nw_tos) == 8);
struct ofp_action_vendor_header {
uint16_t type; /* OFPAT_VENDOR. */
uint16_t len; /* Length is a multiple of 8. */
- uint32_t vendor; /* Vendor ID, which takes the same form
- as in "struct ofp_vendor_header". */
+ uint32_t 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.
+/* 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 {
uint16_t type; /* One of OFPAT_*. */
- uint16_t len; /* Length of action, including this
- header. This is the length of action,
- including any padding to make it
+ uint16_t 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];
};
uint16_t in_port; /* Packet's input port (OFPP_NONE if none). */
uint16_t actions_len; /* Size of action array in bytes. */
struct ofp_action_header actions[0]; /* Actions. */
- /* uint8_t data[0]; */ /* Packet data. The length is inferred
- from the length field in the header.
+ /* uint8_t data[0]; */ /* Packet data. The length is inferred
+ from the length field in the header.
(Only meaningful if buffer_id == -1.) */
};
OFP_ASSERT(sizeof(struct ofp_packet_out) == 16);
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 << 21) - 1)
+ OFPFW_ALL = ((1 << 22) - 1)
};
-/* The wildcards for ICMP type and code fields use the transport source
+/* 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
uint8_t dl_vlan_pcp; /* Input VLAN priority. */
uint8_t pad1[1]; /* Align to 64-bits. */
uint16_t dl_type; /* Ethernet frame type. */
- uint8_t nw_proto; /* IP protocol. */
- uint8_t pad2[3]; /* Align to 64-bits. */
+ 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. */
uint32_t nw_src; /* IP source address. */
uint32_t nw_dst; /* IP destination address. */
uint16_t tp_src; /* TCP/UDP source port. */
};
OFP_ASSERT(sizeof(struct ofp_match) == 40);
-/* The match fields for ICMP type and code use the transport source and
+/* The match fields for ICMP type and code use the transport source and
* destination port fields, respectively. */
#define icmp_type tp_src
#define icmp_code tp_dst
struct ofp_flow_mod {
struct ofp_header header;
struct ofp_match match; /* Fields to match */
+ uint64_t cookie; /* Opaque controller-issued identifier. */
/* Flow actions. */
uint16_t command; /* One of OFPFC_*. */
uint16_t idle_timeout; /* Idle time before discarding (seconds). */
uint16_t hard_timeout; /* Max time before discarding (seconds). */
uint16_t priority; /* Priority level of flow entry. */
- uint32_t buffer_id; /* Buffered packet to apply to (or -1).
+ uint32_t buffer_id; /* Buffered packet to apply to (or -1).
Not meaningful for OFPFC_DELETE*. */
- uint16_t out_port; /* For OFPFC_DELETE* commands, require
- matching entries to include this as an
- output port. A value of OFPP_NONE
+ uint16_t out_port; /* For OFPFC_DELETE* commands, require
+ matching entries to include this as an
+ output port. A value of OFPP_NONE
indicates no restriction. */
uint16_t flags; /* One of OFPFF_*. */
- uint32_t reserved; /* Reserved for future use. */
- struct ofp_action_header actions[0]; /* The action length is inferred
- from the length field in the
+ 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) == 68);
+OFP_ASSERT(sizeof(struct ofp_flow_mod) == 72);
/* Why was this flow removed? */
enum ofp_flow_removed_reason {
struct ofp_flow_removed {
struct ofp_header header;
struct ofp_match match; /* Description of fields. */
+ uint64_t cookie; /* Opaque controller-issued identifier. */
uint16_t priority; /* Priority level of flow entry. */
uint8_t reason; /* One of OFPRR_*. */
uint8_t pad[1]; /* Align to 32-bits. */
- uint32_t duration; /* Time flow was alive in seconds. */
+ uint32_t duration_sec; /* Time flow was alive in seconds. */
+ uint32_t duration_nsec; /* Time flow was alive in nanoseconds beyond
+ duration_sec. */
uint16_t idle_timeout; /* Idle timeout from original flow mod. */
- uint8_t pad2[6]; /* Align to 64-bits. */
- uint64_t packet_count;
+ uint8_t pad2[2]; /* Align to 64-bits. */
+ uint64_t packet_count;
uint64_t byte_count;
};
-OFP_ASSERT(sizeof(struct ofp_flow_removed) == 80);
+OFP_ASSERT(sizeof(struct ofp_flow_removed) == 88);
/* Values for 'type' in ofp_error_message. These values are immutable: they
* will not change in future versions of the protocol (although new values may
OFPET_BAD_REQUEST, /* Request was not understood. */
OFPET_BAD_ACTION, /* Error in action description. */
OFPET_FLOW_MOD_FAILED, /* Problem modifying flow entry. */
- OFPET_PORT_MOD_FAILED /* OFPT_PORT_MOD failed. */
+ OFPET_PORT_MOD_FAILED, /* OFPT_PORT_MOD failed. */
+ OFPET_QUEUE_OP_FAILED /* Queue operation failed. */
};
/* ofp_error_msg 'code' values for OFPET_HELLO_FAILED. 'data' contains an
OFPBRC_BAD_VERSION, /* ofp_header.version not supported. */
OFPBRC_BAD_TYPE, /* ofp_header.type not supported. */
OFPBRC_BAD_STAT, /* ofp_stats_request.type not supported. */
- OFPBRC_BAD_VENDOR, /* Vendor not supported (in ofp_vendor_header
+ OFPBRC_BAD_VENDOR, /* Vendor not supported (in ofp_vendor_header
* or ofp_stats_request or ofp_stats_reply). */
OFPBRC_BAD_SUBTYPE, /* Vendor subtype not supported. */
OFPBRC_EPERM, /* Permissions error. */
OFPBRC_BUFFER_UNKNOWN /* Specified buffer does not exist. */
};
-/* ofp_error_msg 'code' values for OFPET_BAD_ACTION. 'data' contains at least
+/* ofp_error_msg 'code' values for OFPET_BAD_ACTION. 'data' contains at least
* the first 64 bytes of the failed request. */
enum ofp_bad_action_code {
OFPBAC_BAD_TYPE, /* Unknown action type. */
OFPBAC_BAD_OUT_PORT, /* Problem validating output action. */
OFPBAC_BAD_ARGUMENT, /* Bad action argument. */
OFPBAC_EPERM, /* Permissions error. */
- OFPBAC_TOO_MANY /* Can't handle this many actions. */
+ OFPBAC_TOO_MANY, /* Can't handle this many actions. */
+ OFPBAC_BAD_QUEUE /* Problem validating output queue. */
};
-/* ofp_error_msg 'code' values for OFPET_FLOW_MOD_FAILED. 'data' contains
+/* ofp_error_msg 'code' values for OFPET_FLOW_MOD_FAILED. 'data' contains
* at least the first 64 bytes of the failed request. */
enum ofp_flow_mod_failed_code {
OFPFMFC_ALL_TABLES_FULL, /* Flow not added because of full tables. */
OFPFMFC_EPERM, /* Permissions error. */
OFPFMFC_BAD_EMERG_TIMEOUT, /* Flow not added because of non-zero idle/hard
* timeout. */
- OFPFMFC_BAD_COMMAND /* Unknown command. */
+ OFPFMFC_BAD_COMMAND, /* Unknown command. */
+ OFPFMFC_UNSUPPORTED /* Unsupported action list - cannot process in
+ the order specified. */
};
/* ofp_error_msg 'code' values for OFPET_PORT_MOD_FAILED. 'data' contains
OFPPMFC_BAD_HW_ADDR, /* Specified hardware address is wrong. */
};
+/* ofp_error msg 'code' values for OFPET_QUEUE_OP_FAILED. 'data' contains
+ * at least the first 64 bytes of the failed request */
+enum ofp_queue_op_failed_code {
+ OFPQOFC_BAD_PORT, /* Invalid port (or port does not exist). */
+ OFPQOFC_BAD_QUEUE, /* Queue does not exist. */
+ OFPQOFC_EPERM /* Permissions error. */
+};
+
/* OFPT_ERROR: Error message (datapath -> controller). */
struct ofp_error_msg {
struct ofp_header header;
uint16_t type;
uint16_t code;
- uint8_t data[0]; /* Variable-length data. Interpreted based
+ 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.
+ /* Description of this OpenFlow switch.
* The request body is empty.
* The reply body is struct ofp_desc_stats. */
OFPST_DESC,
OFPST_TABLE,
/* Physical port statistics.
- * The request body is empty.
+ * The request body 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 defines the port
+ * The reply body is an array of struct ofp_queue_stats */
+ OFPST_QUEUE,
+
/* Vendor extension.
* The request and reply bodies begin with a 32-bit vendor ID, which takes
- * the same form as in "struct ofp_vendor_header". The request and reply
+ * the same form as in "struct ofp_vendor_header". The request and reply
* bodies are otherwise vendor-defined. */
OFPST_VENDOR = 0xffff
};
#define DESC_STR_LEN 256
#define SERIAL_NUM_LEN 32
-/* Body of reply to OFPST_DESC request. Each entry is a NULL-terminated
+/* Body of reply to OFPST_DESC request. Each entry is a NULL-terminated
* ASCII string. */
struct ofp_desc_stats {
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) == 800);
+OFP_ASSERT(sizeof(struct ofp_desc_stats) == 1056);
/* Body for ofp_stats_request of type OFPST_FLOW. */
struct ofp_flow_stats_request {
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. */
- uint16_t out_port; /* Require matching entries to include this
- as an output port. A value of OFPP_NONE
+ uint16_t 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) == 44);
uint8_t table_id; /* ID of table flow came from. */
uint8_t pad;
struct ofp_match match; /* Description of fields. */
- uint32_t duration; /* Time flow has been alive in seconds. */
+ uint32_t duration_sec; /* Time flow has been alive in seconds. */
+ uint32_t duration_nsec; /* Time flow has been alive in nanoseconds
+ beyond duration_sec. */
uint16_t priority; /* Priority of the entry. Only meaningful
when this is not an exact-match entry. */
uint16_t idle_timeout; /* Number of seconds idle before expiration. */
uint16_t hard_timeout; /* Number of seconds before expiration. */
- uint16_t pad2; /* Pad to 64 bits. */
+ uint8_t pad2[6]; /* Align to 64 bits. */
+ uint64_t cookie; /* Opaque controller-issued identifier. */
uint64_t packet_count; /* Number of packets in flow. */
uint64_t byte_count; /* Number of bytes in flow. */
struct ofp_action_header actions[0]; /* Actions. */
};
-OFP_ASSERT(sizeof(struct ofp_flow_stats) == 72);
+OFP_ASSERT(sizeof(struct ofp_flow_stats) == 88);
/* Body for ofp_stats_request of type OFPST_AGGREGATE. */
struct ofp_aggregate_stats_request {
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. */
- uint16_t out_port; /* Require matching entries to include this
- as an output port. A value of OFPP_NONE
+ uint16_t 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_aggregate_stats_request) == 44);
/* Body of reply to OFPST_TABLE request. */
struct ofp_table_stats {
- uint8_t table_id; /* Identifier of table. Lower numbered tables
+ 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];
- uint32_t wildcards; /* Bitmap of OFPFW_* wildcards that are
+ uint32_t wildcards; /* Bitmap of OFPFW_* wildcards that are
supported by the table. */
uint32_t max_entries; /* Max number of entries supported. */
uint32_t active_count; /* Number of active entries. */
};
OFP_ASSERT(sizeof(struct ofp_table_stats) == 64);
+/* Body for ofp_stats_request of type OFPST_PORT. */
+struct ofp_port_stats_request {
+ uint16_t 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) == 8);
+
/* Body of reply to OFPST_PORT request. If a counter is unsupported, set
* the field to all ones. */
struct ofp_port_stats {
uint64_t tx_packets; /* Number of transmitted packets. */
uint64_t rx_bytes; /* Number of received bytes. */
uint64_t tx_bytes; /* Number of transmitted bytes. */
- uint64_t rx_dropped; /* Number of packets dropped by RX. */
- uint64_t tx_dropped; /* Number of packets dropped by TX. */
+ uint64_t rx_dropped; /* Number of packets dropped by RX. */
+ uint64_t tx_dropped; /* Number of packets dropped by TX. */
uint64_t 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. */
uint64_t tx_errors; /* Number of transmit errors. This is a super-set
of transmit errors. */
- uint64_t rx_frame_err; /* Number of frame alignment errors. */
- uint64_t rx_over_err; /* Number of packets with RX overrun. */
- uint64_t rx_crc_err; /* Number of CRC errors. */
- uint64_t collisions; /* Number of collisions. */
+ uint64_t rx_frame_err; /* Number of frame alignment errors. */
+ uint64_t rx_over_err; /* Number of packets with RX overrun. */
+ uint64_t rx_crc_err; /* Number of CRC errors. */
+ uint64_t collisions; /* Number of collisions. */
};
OFP_ASSERT(sizeof(struct ofp_port_stats) == 104);