/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "openflow/openflow-common.h"
-/* 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. */
-};
-
-/* OpenFlow 1.0 specific message types, in addition to the common message
- * types. */
-enum ofp10_type {
- /* Controller command messages. */
- OFPT10_PORT_MOD = 15, /* Controller/switch message */
-
- /* Statistics messages. */
- OFPT10_STATS_REQUEST, /* Controller/switch message */
- OFPT10_STATS_REPLY, /* Controller/switch message */
-
- /* Barrier messages. */
- OFPT10_BARRIER_REQUEST, /* Controller/switch message */
- OFPT10_BARRIER_REPLY, /* Controller/switch message */
-
- /* Queue Configuration messages. */
- OFPT10_QUEUE_GET_CONFIG_REQUEST, /* Controller/switch message */
- OFPT10_QUEUE_GET_CONFIG_REPLY /* Controller/switch message */
-};
-
-/* 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. */
-};
+/* Port number(s) meaning
+ * --------------- --------------------------------------
+ * 0x0000 not assigned a meaning by OpenFlow 1.0
+ * 0x0001...0xfeff "physical" ports
+ * 0xff00...0xfff7 "reserved" but not assigned a meaning by OpenFlow 1.0
+ * 0xfff8...0xffff "reserved" OFPP_* ports with assigned meanings
+ */
-/* 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);
+/* Ranges. */
+#define OFPP_MAX OFP_PORT_C(0xff00) /* Max # of switch ports. */
+#define OFPP_FIRST_RESV OFP_PORT_C(0xfff8) /* First assigned reserved port. */
+#define OFPP_LAST_RESV OFP_PORT_C(0xffff) /* Last assigned reserved port. */
+
+/* Reserved output "ports". */
+#define OFPP_IN_PORT OFP_PORT_C(0xfff8) /* Where the packet came in. */
+#define OFPP_TABLE OFP_PORT_C(0xfff9) /* Perform actions in flow table. */
+#define OFPP_NORMAL OFP_PORT_C(0xfffa) /* Process with normal L2/L3. */
+#define OFPP_FLOOD OFP_PORT_C(0xfffb) /* All ports except input port and
+ * ports disabled by STP. */
+#define OFPP_ALL OFP_PORT_C(0xfffc) /* All ports except input port. */
+#define OFPP_CONTROLLER OFP_PORT_C(0xfffd) /* Send to controller. */
+#define OFPP_LOCAL OFP_PORT_C(0xfffe) /* Local openflow "port". */
+#define OFPP_NONE OFP_PORT_C(0xffff) /* Not associated with any port. */
/* OpenFlow 1.0 specific capabilities supported by the datapath (struct
* ofp_switch_features, member capabilities). */
/* Modify behavior of the physical port */
struct ofp10_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
bits to prevent any action taking place. */
uint8_t pad[4]; /* Pad to 64-bits. */
};
-OFP_ASSERT(sizeof(struct ofp10_port_mod) == 32);
+OFP_ASSERT(sizeof(struct ofp10_port_mod) == 24);
+
+struct ofp10_packet_queue {
+ ovs_be32 queue_id; /* id for the specific queue. */
+ ovs_be16 len; /* Length in bytes of this queue desc. */
+ uint8_t pad[2]; /* 64-bit alignment. */
+ /* Followed by any number of queue properties expressed using
+ * ofp_queue_prop_header, to fill out a total of 'len' bytes. */
+};
+OFP_ASSERT(sizeof(struct ofp10_packet_queue) == 8);
/* Query for port queue configuration. */
struct ofp10_queue_get_config_request {
- struct ofp_header header;
ovs_be16 port; /* Port to be queried. Should refer
to a valid physical port (i.e. < OFPP_MAX) */
uint8_t pad[2];
/* 32-bit alignment. */
};
-OFP_ASSERT(sizeof(struct ofp10_queue_get_config_request) == 12);
+OFP_ASSERT(sizeof(struct ofp10_queue_get_config_request) == 4);
/* Queue configuration for a given port. */
struct ofp10_queue_get_config_reply {
- struct ofp_header header;
ovs_be16 port;
uint8_t pad[6];
/* struct ofp10_packet_queue queues[0]; List of configured queues. */
};
-OFP_ASSERT(sizeof(struct ofp10_queue_get_config_reply) == 16);
+OFP_ASSERT(sizeof(struct ofp10_queue_get_config_reply) == 8);
/* Packet received on port (datapath -> controller). */
-struct ofp_packet_in {
- struct ofp_header header;
+struct ofp10_packet_in {
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. */
offsetof(struct ofp_packet_in, data) ==
sizeof(struct ofp_packet_in) - 2. */
};
-OFP_ASSERT(sizeof(struct ofp_packet_in) == 20);
+OFP_ASSERT(sizeof(struct ofp10_packet_in) == 12);
enum ofp10_action_type {
OFPAT10_OUTPUT, /* Output to switch port. */
};
OFP_ASSERT(sizeof(struct ofp10_action_output) == 8);
-/* Action header for OFPAT10_VENDOR. The rest of the body is vendor-defined. */
-struct ofp_action_vendor_header {
- ovs_be16 type; /* OFPAT10_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 OFPAT10_*. */
- 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);
-
/* OFPAT10_ENQUEUE action struct: send packets to given queue on port. */
-struct ofp_action_enqueue {
+struct ofp10_action_enqueue {
ovs_be16 type; /* OFPAT10_ENQUEUE. */
ovs_be16 len; /* Len is 16. */
ovs_be16 port; /* Port that queue belongs. Should
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 ofp10_action_output output10;
- 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);
+OFP_ASSERT(sizeof(struct ofp10_action_enqueue) == 16);
/* Send packet (controller -> datapath). */
-struct ofp_packet_out {
- struct ofp_header header;
+struct ofp10_packet_out {
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. */
* 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. */
-};
+OFP_ASSERT(sizeof(struct ofp10_packet_out) == 8);
/* Flow wildcards. */
-enum ofp_flow_wildcards {
+enum ofp10_flow_wildcards {
OFPFW10_IN_PORT = 1 << 0, /* Switch input port. */
OFPFW10_DL_VLAN = 1 << 1, /* VLAN vid. */
OFPFW10_DL_SRC = 1 << 2, /* Ethernet source address. */
#define OFPFW10_ICMP_TYPE OFPFW10_TP_SRC
#define OFPFW10_ICMP_CODE OFPFW10_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.
+ * special conditions. All ones indicates that 802.1Q header is not present.
*/
#define OFP10_VLAN_NONE 0xffff
};
OFP_ASSERT(sizeof(struct ofp10_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. */
+enum ofp10_flow_mod_flags {
+ OFPFF10_EMERG = 1 << 2 /* Part of "emergency flow cache". */
};
/* Flow setup and teardown (controller -> datapath). */
-struct ofp_flow_mod {
- struct ofp_header header;
+struct ofp10_flow_mod {
struct ofp10_match match; /* Fields to match */
ovs_be64 cookie; /* Opaque controller-issued identifier. */
from the length field in the
header. */
};
-OFP_ASSERT(sizeof(struct ofp_flow_mod) == 72);
+OFP_ASSERT(sizeof(struct ofp10_flow_mod) == 64);
/* Flow removed (datapath -> controller). */
-struct ofp_flow_removed {
- struct ofp_header header;
+struct ofp10_flow_removed {
struct ofp10_match match; /* Description of fields. */
ovs_be64 cookie; /* Opaque controller-issued identifier. */
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);
+OFP_ASSERT(sizeof(struct ofp10_flow_removed) == 80);
/* Statistics request or reply message. */
-struct ofp_stats_msg {
+struct ofp10_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);
+OFP_ASSERT(sizeof(struct ofp10_stats_msg) == 12);
/* Stats request of type OFPST_AGGREGATE or OFPST_FLOW. */
-struct ofp_flow_stats_request {
- struct ofp_stats_msg osm;
+struct ofp10_flow_stats_request {
struct ofp10_match match; /* Fields to match. */
uint8_t table_id; /* ID of table to read (from ofp_table_stats)
or 0xff for all tables. */
as an output port. A value of OFPP_NONE
indicates no restriction. */
};
-OFP_ASSERT(sizeof(struct ofp_flow_stats_request) == 56);
+OFP_ASSERT(sizeof(struct ofp10_flow_stats_request) == 44);
/* Body of reply to OFPST_FLOW request. */
-struct ofp_flow_stats {
+struct ofp10_flow_stats {
ovs_be16 length; /* Length of this entry. */
uint8_t table_id; /* ID of table flow came from. */
uint8_t pad;
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);
+OFP_ASSERT(sizeof(struct ofp10_flow_stats) == 88);
/* Body of reply to OFPST_TABLE request. */
-struct ofp_table_stats {
+struct ofp10_table_stats {
uint8_t table_id; /* Identifier of table. Lower numbered tables
are consulted first. */
uint8_t pad[3]; /* Align to 32-bits. */
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);
+OFP_ASSERT(sizeof(struct ofp10_table_stats) == 64);
/* Stats request of type OFPST_PORT. */
-struct ofp_port_stats_request {
- struct ofp_stats_msg osm;
+struct ofp10_port_stats_request {
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);
+OFP_ASSERT(sizeof(struct ofp10_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 {
+struct ofp10_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 rx_crc_err; /* Number of CRC errors. */
ovs_32aligned_be64 collisions; /* Number of collisions. */
};
-OFP_ASSERT(sizeof(struct ofp_port_stats) == 104);
+OFP_ASSERT(sizeof(struct ofp10_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;
+struct ofp10_queue_stats_request {
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);
+OFP_ASSERT(sizeof(struct ofp10_queue_stats_request) == 8);
/* Body for stats reply of type OFPST_QUEUE consists of an array of this
* structure type. */
-struct ofp_queue_stats {
+struct ofp10_queue_stats {
ovs_be16 port_no;
uint8_t pad[2]; /* Align to 32-bits. */
ovs_be32 queue_id; /* Queue id. */
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);
+OFP_ASSERT(sizeof(struct ofp10_queue_stats) == 32);
/* Vendor extension stats message. */
-struct ofp_vendor_stats_msg {
- struct ofp_stats_msg osm; /* Type OFPST_VENDOR. */
+struct ofp10_vendor_stats_msg {
+ struct ofp10_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);
+OFP_ASSERT(sizeof(struct ofp10_vendor_stats_msg) == 16);
#endif /* openflow/openflow-1.0.h */
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