2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
29 #include "openflow/nicira-ext.h"
30 #include "openvswitch/types.h"
31 #include "type-props.h"
35 struct ofpact_set_field
;
38 enum ofperr
ofputil_port_from_ofp11(ovs_be32 ofp11_port
,
39 ofp_port_t
*ofp10_port
);
40 ovs_be32
ofputil_port_to_ofp11(ofp_port_t ofp10_port
);
42 bool ofputil_port_from_string(const char *, ofp_port_t
*portp
);
43 void ofputil_format_port(ofp_port_t port
, struct ds
*);
44 void ofputil_port_to_string(ofp_port_t
, char namebuf
[OFP_MAX_PORT_NAME_LEN
],
48 enum { MAX_GROUP_NAME_LEN
= INT_STRLEN(uint32_t) };
49 bool ofputil_group_from_string(const char *, uint32_t *group_id
);
50 void ofputil_format_group(uint32_t group_id
, struct ds
*);
51 void ofputil_group_to_string(uint32_t group_id
,
52 char namebuf
[MAX_GROUP_NAME_LEN
+ 1],
55 /* Converting OFPFW10_NW_SRC_MASK and OFPFW10_NW_DST_MASK wildcard bit counts
56 * to and from IP bitmasks. */
57 ovs_be32
ofputil_wcbits_to_netmask(int wcbits
);
58 int ofputil_netmask_to_wcbits(ovs_be32 netmask
);
62 * A "protocol" is an OpenFlow version plus, for some OpenFlow versions,
63 * a bit extra about the flow match format in use.
65 * These are arranged from most portable to least portable, or alternatively
66 * from least powerful to most powerful. Protocols earlier on the list are
67 * more likely to be understood for the purpose of making requests, but
68 * protocol later on the list are more likely to accurately describe a flow
71 * On any given OpenFlow connection, a single protocol is in effect at any
72 * given time. These values use separate bits only because that makes it easy
73 * to test whether a particular protocol is within a given set of protocols and
74 * to implement set union and intersection.
76 enum ofputil_protocol
{
77 /* OpenFlow 1.0 protocols.
79 * The "STD" protocols use the standard OpenFlow 1.0 flow format.
80 * The "NXM" protocols use the Nicira Extensible Match (NXM) flow format.
82 * The protocols with "TID" mean that the nx_flow_mod_table_id Nicira
83 * extension has been enabled. The other protocols have it disabled.
85 #define OFPUTIL_P_NONE 0
86 OFPUTIL_P_OF10_STD
= 1 << 0,
87 OFPUTIL_P_OF10_STD_TID
= 1 << 1,
88 OFPUTIL_P_OF10_NXM
= 1 << 2,
89 OFPUTIL_P_OF10_NXM_TID
= 1 << 3,
90 #define OFPUTIL_P_OF10_STD_ANY (OFPUTIL_P_OF10_STD | OFPUTIL_P_OF10_STD_TID)
91 #define OFPUTIL_P_OF10_NXM_ANY (OFPUTIL_P_OF10_NXM | OFPUTIL_P_OF10_NXM_TID)
92 #define OFPUTIL_P_OF10_ANY (OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY)
94 /* OpenFlow 1.1 protocol.
96 * We only support the standard OpenFlow 1.1 flow format.
98 * OpenFlow 1.1 always operates with an equivalent of the
99 * nx_flow_mod_table_id Nicira extension enabled, so there is no "TID"
101 OFPUTIL_P_OF11_STD
= 1 << 4,
103 /* OpenFlow 1.2+ protocols (only one variant each).
105 * These use the standard OpenFlow Extensible Match (OXM) flow format.
107 * OpenFlow 1.2+ always operates with an equivalent of the
108 * nx_flow_mod_table_id Nicira extension enabled, so there is no "TID"
110 OFPUTIL_P_OF12_OXM
= 1 << 5,
111 OFPUTIL_P_OF13_OXM
= 1 << 6,
112 OFPUTIL_P_OF14_OXM
= 1 << 7,
113 #define OFPUTIL_P_ANY_OXM (OFPUTIL_P_OF12_OXM | OFPUTIL_P_OF13_OXM | OFPUTIL_P_OF14_OXM)
115 #define OFPUTIL_P_NXM_OF11_UP (OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_OF11_STD | \
118 #define OFPUTIL_P_NXM_OXM_ANY (OFPUTIL_P_OF10_NXM_ANY | OFPUTIL_P_ANY_OXM)
120 #define OFPUTIL_P_OF11_UP (OFPUTIL_P_OF11_STD | OFPUTIL_P_ANY_OXM)
122 #define OFPUTIL_P_OF12_UP (OFPUTIL_P_ANY_OXM)
124 #define OFPUTIL_P_OF13_UP (OFPUTIL_P_OF13_OXM)
126 #define OFPUTIL_P_OF14_UP (OFPUTIL_P_OF14_OXM)
129 #define OFPUTIL_P_ANY ((1 << 8) - 1)
131 /* Protocols in which a specific table may be specified in flow_mods. */
132 #define OFPUTIL_P_TID (OFPUTIL_P_OF10_STD_TID | \
133 OFPUTIL_P_OF10_NXM_TID | \
134 OFPUTIL_P_OF11_STD | \
138 /* Protocols to use for flow dumps, from most to least preferred. */
139 extern enum ofputil_protocol ofputil_flow_dump_protocols
[];
140 extern size_t ofputil_n_flow_dump_protocols
;
142 enum ofputil_protocol
ofputil_protocol_from_ofp_version(enum ofp_version
);
143 enum ofputil_protocol
ofputil_protocols_from_ofp_version(enum ofp_version
);
144 enum ofp_version
ofputil_protocol_to_ofp_version(enum ofputil_protocol
);
146 bool ofputil_protocol_is_valid(enum ofputil_protocol
);
147 enum ofputil_protocol
ofputil_protocol_set_tid(enum ofputil_protocol
,
149 enum ofputil_protocol
ofputil_protocol_to_base(enum ofputil_protocol
);
150 enum ofputil_protocol
ofputil_protocol_set_base(
151 enum ofputil_protocol cur
, enum ofputil_protocol new_base
);
153 const char *ofputil_protocol_to_string(enum ofputil_protocol
);
154 char *ofputil_protocols_to_string(enum ofputil_protocol
);
155 enum ofputil_protocol
ofputil_protocols_from_string(const char *);
157 void ofputil_format_version(struct ds
*, enum ofp_version
);
158 void ofputil_format_version_name(struct ds
*, enum ofp_version
);
160 /* A bitmap of version numbers
162 * Bit offsets correspond to ofp_version numbers which in turn correspond to
163 * wire-protocol numbers for Open Flow versions.. E.g. (1u << OFP11_VERSION)
164 * is the mask for Open Flow 1.1. If the bit for a version is set then it is
165 * allowed, otherwise it is disallowed. */
167 void ofputil_format_version_bitmap(struct ds
*msg
, uint32_t bitmap
);
168 void ofputil_format_version_bitmap_names(struct ds
*msg
, uint32_t bitmap
);
170 uint32_t ofputil_protocols_to_version_bitmap(enum ofputil_protocol
);
171 enum ofputil_protocol
ofputil_protocols_from_version_bitmap(uint32_t bitmap
);
173 /* Bitmap of OpenFlow versions that Open vSwitch supports. */
174 #define OFPUTIL_SUPPORTED_VERSIONS \
175 ((1u << OFP10_VERSION) | (1u << OFP12_VERSION) | (1u << OFP13_VERSION))
177 /* Bitmap of OpenFlow versions to enable by default (a subset of
178 * OFPUTIL_SUPPORTED_VERSIONS). */
179 #define OFPUTIL_DEFAULT_VERSIONS (1u << OFP10_VERSION)
181 enum ofputil_protocol
ofputil_protocols_from_string(const char *s
);
183 const char *ofputil_version_to_string(enum ofp_version ofp_version
);
184 uint32_t ofputil_versions_from_string(const char *s
);
185 uint32_t ofputil_versions_from_strings(char ** const s
, size_t count
);
187 bool ofputil_decode_hello(const struct ofp_header
*,
188 uint32_t *allowed_versions
);
189 struct ofpbuf
*ofputil_encode_hello(uint32_t version_bitmap
);
191 struct ofpbuf
*ofputil_encode_set_protocol(enum ofputil_protocol current
,
192 enum ofputil_protocol want
,
193 enum ofputil_protocol
*next
);
196 struct ofpbuf
*ofputil_encode_nx_set_flow_format(enum nx_flow_format
);
197 enum ofputil_protocol
ofputil_nx_flow_format_to_protocol(enum nx_flow_format
);
198 bool ofputil_nx_flow_format_is_valid(enum nx_flow_format
);
199 const char *ofputil_nx_flow_format_to_string(enum nx_flow_format
);
201 /* Work with ofp10_match. */
202 void ofputil_wildcard_from_ofpfw10(uint32_t ofpfw
, struct flow_wildcards
*);
203 void ofputil_match_from_ofp10_match(const struct ofp10_match
*,
205 void ofputil_normalize_match(struct match
*);
206 void ofputil_normalize_match_quiet(struct match
*);
207 void ofputil_match_to_ofp10_match(const struct match
*, struct ofp10_match
*);
209 /* Work with ofp11_match. */
210 enum ofperr
ofputil_pull_ofp11_match(struct ofpbuf
*, struct match
*,
211 uint16_t *padded_match_len
);
212 enum ofperr
ofputil_match_from_ofp11_match(const struct ofp11_match
*,
214 int ofputil_put_ofp11_match(struct ofpbuf
*, const struct match
*,
215 enum ofputil_protocol
);
216 void ofputil_match_to_ofp11_match(const struct match
*, struct ofp11_match
*);
217 int ofputil_match_typical_len(enum ofputil_protocol
);
219 /* dl_type translation between OpenFlow and 'struct flow' format. */
220 ovs_be16
ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type
);
221 ovs_be16
ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type
);
224 bool ofputil_packet_in_format_is_valid(enum nx_packet_in_format
);
225 int ofputil_packet_in_format_from_string(const char *);
226 const char *ofputil_packet_in_format_to_string(enum nx_packet_in_format
);
227 struct ofpbuf
*ofputil_make_set_packet_in_format(enum ofp_version
,
228 enum nx_packet_in_format
);
230 /* NXT_FLOW_MOD_TABLE_ID extension. */
231 struct ofpbuf
*ofputil_make_flow_mod_table_id(bool flow_mod_table_id
);
233 /* Protocol-independent flow_mod flags. */
234 enum ofputil_flow_mod_flags
{
235 /* Flags that are maintained with a flow as part of its state.
237 * (OFPUTIL_FF_EMERG would be here too, if OVS supported it.) */
238 OFPUTIL_FF_SEND_FLOW_REM
= 1 << 0, /* All versions. */
239 OFPUTIL_FF_NO_PKT_COUNTS
= 1 << 1, /* OpenFlow 1.3+. */
240 OFPUTIL_FF_NO_BYT_COUNTS
= 1 << 2, /* OpenFlow 1.3+. */
241 #define OFPUTIL_FF_STATE (OFPUTIL_FF_SEND_FLOW_REM \
242 | OFPUTIL_FF_NO_PKT_COUNTS \
243 | OFPUTIL_FF_NO_BYT_COUNTS)
245 /* Flags that affect flow_mod behavior but are not part of flow state. */
246 OFPUTIL_FF_CHECK_OVERLAP
= 1 << 3, /* All versions. */
247 OFPUTIL_FF_EMERG
= 1 << 4, /* OpenFlow 1.0 only. */
248 OFPUTIL_FF_RESET_COUNTS
= 1 << 5, /* OpenFlow 1.2+. */
250 /* Flags that are only set by OVS for its internal use. Cannot be set via
252 OFPUTIL_FF_HIDDEN_FIELDS
= 1 << 6, /* Allow hidden match fields to be
254 OFPUTIL_FF_NO_READONLY
= 1 << 7, /* Allow rules within read only tables
258 /* Protocol-independent flow_mod.
260 * The handling of cookies across multiple versions of OpenFlow is a bit
261 * confusing. See DESIGN for the details. */
262 struct ofputil_flow_mod
{
263 struct list list_node
; /* For queuing flow_mods. */
266 unsigned int priority
;
268 /* Cookie matching. The flow_mod affects only flows that have cookies that
269 * bitwise match 'cookie' bits in positions where 'cookie_mask has 1-bits.
271 * 'cookie_mask' should be zero for OFPFC_ADD flow_mods. */
272 ovs_be64 cookie
; /* Cookie bits to match. */
273 ovs_be64 cookie_mask
; /* 1-bit in each 'cookie' bit to match. */
277 * OFPFC_ADD uses 'new_cookie' as the new flow's cookie. 'new_cookie'
278 * should not be UINT64_MAX.
280 * OFPFC_MODIFY and OFPFC_MODIFY_STRICT have two cases:
282 * - If one or more matching flows exist and 'modify_cookie' is true,
283 * then the flow_mod changes the existing flows' cookies to
284 * 'new_cookie'. 'new_cookie' should not be UINT64_MAX.
286 * - If no matching flow exists, 'new_cookie' is not UINT64_MAX, and
287 * 'cookie_mask' is 0, then the flow_mod adds a new flow with
288 * 'new_cookie' as its cookie.
290 ovs_be64 new_cookie
; /* New cookie to install or UINT64_MAX. */
291 bool modify_cookie
; /* Set cookie of existing flow to 'new_cookie'? */
295 uint16_t idle_timeout
;
296 uint16_t hard_timeout
;
300 enum ofputil_flow_mod_flags flags
;
301 struct ofpact
*ofpacts
; /* Series of "struct ofpact"s. */
302 size_t ofpacts_len
; /* Length of ofpacts, in bytes. */
305 enum ofperr
ofputil_decode_flow_mod(struct ofputil_flow_mod
*,
306 const struct ofp_header
*,
307 enum ofputil_protocol
,
308 struct ofpbuf
*ofpacts
,
311 struct ofpbuf
*ofputil_encode_flow_mod(const struct ofputil_flow_mod
*,
312 enum ofputil_protocol
);
314 /* Flow stats or aggregate stats request, independent of protocol. */
315 struct ofputil_flow_stats_request
{
316 bool aggregate
; /* Aggregate results? */
319 ovs_be64 cookie_mask
;
325 enum ofperr
ofputil_decode_flow_stats_request(
326 struct ofputil_flow_stats_request
*, const struct ofp_header
*);
327 struct ofpbuf
*ofputil_encode_flow_stats_request(
328 const struct ofputil_flow_stats_request
*, enum ofputil_protocol
);
330 /* Flow stats reply, independent of protocol. */
331 struct ofputil_flow_stats
{
336 uint16_t idle_timeout
;
337 uint16_t hard_timeout
;
338 uint32_t duration_sec
;
339 uint32_t duration_nsec
;
340 int idle_age
; /* Seconds since last packet, -1 if unknown. */
341 int hard_age
; /* Seconds since last change, -1 if unknown. */
342 uint64_t packet_count
; /* Packet count, UINT64_MAX if unknown. */
343 uint64_t byte_count
; /* Byte count, UINT64_MAX if unknown. */
344 const struct ofpact
*ofpacts
;
346 enum ofputil_flow_mod_flags flags
;
349 int ofputil_decode_flow_stats_reply(struct ofputil_flow_stats
*,
351 bool flow_age_extension
,
352 struct ofpbuf
*ofpacts
);
353 void ofputil_append_flow_stats_reply(const struct ofputil_flow_stats
*,
354 struct list
*replies
);
356 /* Aggregate stats reply, independent of protocol. */
357 struct ofputil_aggregate_stats
{
358 uint64_t packet_count
; /* Packet count, UINT64_MAX if unknown. */
359 uint64_t byte_count
; /* Byte count, UINT64_MAX if unknown. */
363 struct ofpbuf
*ofputil_encode_aggregate_stats_reply(
364 const struct ofputil_aggregate_stats
*stats
,
365 const struct ofp_header
*request
);
366 enum ofperr
ofputil_decode_aggregate_stats_reply(
367 struct ofputil_aggregate_stats
*,
368 const struct ofp_header
*reply
);
370 /* Flow removed message, independent of protocol. */
371 struct ofputil_flow_removed
{
375 uint8_t reason
; /* One of OFPRR_*. */
376 uint8_t table_id
; /* 255 if message didn't include table ID. */
377 uint32_t duration_sec
;
378 uint32_t duration_nsec
;
379 uint16_t idle_timeout
;
380 uint16_t hard_timeout
;
381 uint64_t packet_count
; /* Packet count, UINT64_MAX if unknown. */
382 uint64_t byte_count
; /* Byte count, UINT64_MAX if unknown. */
385 enum ofperr
ofputil_decode_flow_removed(struct ofputil_flow_removed
*,
386 const struct ofp_header
*);
387 struct ofpbuf
*ofputil_encode_flow_removed(const struct ofputil_flow_removed
*,
388 enum ofputil_protocol
);
390 /* Abstract packet-in message. */
391 struct ofputil_packet_in
{
392 /* Packet data and metadata.
394 * To save bandwidth, in some cases a switch may send only the first
395 * several bytes of a packet, indicated by 'packet_len < total_len'. When
396 * the full packet is included, 'packet_len == total_len'. */
398 size_t packet_len
; /* Number of bytes in 'packet'. */
399 size_t total_len
; /* Size of packet, pre-truncation. */
400 struct flow_metadata fmd
;
402 /* Identifies a buffer in the switch that contains the full packet, to
403 * allow the controller to reference it later without having to send the
404 * entire packet back to the switch.
406 * UINT32_MAX indicates that the packet is not buffered in the switch. A
407 * switch should only use UINT32_MAX when it sends the entire packet. */
410 /* Reason that the packet-in is being sent. */
411 enum ofp_packet_in_reason reason
; /* One of OFPR_*. */
413 /* Information about the OpenFlow flow that triggered the packet-in.
415 * A packet-in triggered by a flow table miss has no associated flow. In
416 * that case, 'cookie' is UINT64_MAX. */
417 uint8_t table_id
; /* OpenFlow table ID. */
418 ovs_be64 cookie
; /* Flow's cookie. */
421 enum ofperr
ofputil_decode_packet_in(struct ofputil_packet_in
*,
422 const struct ofp_header
*);
423 struct ofpbuf
*ofputil_encode_packet_in(const struct ofputil_packet_in
*,
424 enum ofputil_protocol protocol
,
425 enum nx_packet_in_format
);
427 enum { OFPUTIL_PACKET_IN_REASON_BUFSIZE
= INT_STRLEN(int) + 1 };
428 const char *ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason
,
431 bool ofputil_packet_in_reason_from_string(const char *,
432 enum ofp_packet_in_reason
*);
434 /* Abstract packet-out message.
436 * ofputil_decode_packet_out() will ensure that 'in_port' is a physical port
437 * (OFPP_MAX or less) or one of OFPP_LOCAL, OFPP_NONE, or OFPP_CONTROLLER. */
438 struct ofputil_packet_out
{
439 const void *packet
; /* Packet data, if buffer_id == UINT32_MAX. */
440 size_t packet_len
; /* Length of packet data in bytes. */
441 uint32_t buffer_id
; /* Buffer id or UINT32_MAX if no buffer. */
442 ofp_port_t in_port
; /* Packet's input port. */
443 struct ofpact
*ofpacts
; /* Actions. */
444 size_t ofpacts_len
; /* Size of ofpacts in bytes. */
447 enum ofperr
ofputil_decode_packet_out(struct ofputil_packet_out
*,
448 const struct ofp_header
*,
449 struct ofpbuf
*ofpacts
);
450 struct ofpbuf
*ofputil_encode_packet_out(const struct ofputil_packet_out
*,
451 enum ofputil_protocol protocol
);
453 enum ofputil_port_config
{
454 /* OpenFlow 1.0 and 1.1 share these values for these port config bits. */
455 OFPUTIL_PC_PORT_DOWN
= 1 << 0, /* Port is administratively down. */
456 OFPUTIL_PC_NO_RECV
= 1 << 2, /* Drop all packets received by port. */
457 OFPUTIL_PC_NO_FWD
= 1 << 5, /* Drop packets forwarded to port. */
458 OFPUTIL_PC_NO_PACKET_IN
= 1 << 6, /* No send packet-in msgs for port. */
459 /* OpenFlow 1.0 only. */
460 OFPUTIL_PC_NO_STP
= 1 << 1, /* No 802.1D spanning tree for port. */
461 OFPUTIL_PC_NO_RECV_STP
= 1 << 3, /* Drop received 802.1D STP packets. */
462 OFPUTIL_PC_NO_FLOOD
= 1 << 4, /* Do not include port when flooding. */
463 /* There are no OpenFlow 1.1-only bits. */
466 enum ofputil_port_state
{
467 /* OpenFlow 1.0 and 1.1 share this values for these port state bits. */
468 OFPUTIL_PS_LINK_DOWN
= 1 << 0, /* No physical link present. */
469 /* OpenFlow 1.1 only. */
470 OFPUTIL_PS_BLOCKED
= 1 << 1, /* Port is blocked */
471 OFPUTIL_PS_LIVE
= 1 << 2, /* Live for Fast Failover Group. */
472 /* OpenFlow 1.0 only. */
473 OFPUTIL_PS_STP_LISTEN
= 0 << 8, /* Not learning or relaying frames. */
474 OFPUTIL_PS_STP_LEARN
= 1 << 8, /* Learning but not relaying frames. */
475 OFPUTIL_PS_STP_FORWARD
= 2 << 8, /* Learning and relaying frames. */
476 OFPUTIL_PS_STP_BLOCK
= 3 << 8, /* Not part of spanning tree. */
477 OFPUTIL_PS_STP_MASK
= 3 << 8 /* Bit mask for OFPPS10_STP_* values. */
480 /* Abstract ofp10_phy_port or ofp11_port. */
481 struct ofputil_phy_port
{
483 uint8_t hw_addr
[OFP_ETH_ALEN
];
484 char name
[OFP_MAX_PORT_NAME_LEN
];
485 enum ofputil_port_config config
;
486 enum ofputil_port_state state
;
488 /* NETDEV_F_* feature bitmasks. */
489 enum netdev_features curr
; /* Current features. */
490 enum netdev_features advertised
; /* Features advertised by the port. */
491 enum netdev_features supported
; /* Features supported by the port. */
492 enum netdev_features peer
; /* Features advertised by peer. */
495 uint32_t curr_speed
; /* Current speed, in kbps. */
496 uint32_t max_speed
; /* Maximum supported speed, in kbps. */
499 enum ofputil_capabilities
{
500 /* OpenFlow 1.0, 1.1, 1.2, and 1.3 share these capability values. */
501 OFPUTIL_C_FLOW_STATS
= 1 << 0, /* Flow statistics. */
502 OFPUTIL_C_TABLE_STATS
= 1 << 1, /* Table statistics. */
503 OFPUTIL_C_PORT_STATS
= 1 << 2, /* Port statistics. */
504 OFPUTIL_C_IP_REASM
= 1 << 5, /* Can reassemble IP fragments. */
505 OFPUTIL_C_QUEUE_STATS
= 1 << 6, /* Queue statistics. */
507 /* OpenFlow 1.0 and 1.1 share this capability. */
508 OFPUTIL_C_ARP_MATCH_IP
= 1 << 7, /* Match IP addresses in ARP pkts. */
510 /* OpenFlow 1.0 only. */
511 OFPUTIL_C_STP
= 1 << 3, /* 802.1d spanning tree. */
513 /* OpenFlow 1.1, 1.2, and 1.3 share this capability. */
514 OFPUTIL_C_GROUP_STATS
= 1 << 4, /* Group statistics. */
516 /* OpenFlow 1.2 and 1.3 share this capability */
517 OFPUTIL_C_PORT_BLOCKED
= 1 << 8, /* Switch will block looping ports */
520 enum ofputil_action_bitmap
{
521 OFPUTIL_A_OUTPUT
= 1 << 0,
522 OFPUTIL_A_SET_VLAN_VID
= 1 << 1,
523 OFPUTIL_A_SET_VLAN_PCP
= 1 << 2,
524 OFPUTIL_A_STRIP_VLAN
= 1 << 3,
525 OFPUTIL_A_SET_DL_SRC
= 1 << 4,
526 OFPUTIL_A_SET_DL_DST
= 1 << 5,
527 OFPUTIL_A_SET_NW_SRC
= 1 << 6,
528 OFPUTIL_A_SET_NW_DST
= 1 << 7,
529 OFPUTIL_A_SET_NW_ECN
= 1 << 8,
530 OFPUTIL_A_SET_NW_TOS
= 1 << 9,
531 OFPUTIL_A_SET_TP_SRC
= 1 << 10,
532 OFPUTIL_A_SET_TP_DST
= 1 << 11,
533 OFPUTIL_A_ENQUEUE
= 1 << 12,
534 OFPUTIL_A_COPY_TTL_OUT
= 1 << 13,
535 OFPUTIL_A_COPY_TTL_IN
= 1 << 14,
536 OFPUTIL_A_SET_MPLS_LABEL
= 1 << 15,
537 OFPUTIL_A_SET_MPLS_TC
= 1 << 16,
538 OFPUTIL_A_SET_MPLS_TTL
= 1 << 17,
539 OFPUTIL_A_DEC_MPLS_TTL
= 1 << 18,
540 OFPUTIL_A_PUSH_VLAN
= 1 << 19,
541 OFPUTIL_A_POP_VLAN
= 1 << 20,
542 OFPUTIL_A_PUSH_MPLS
= 1 << 21,
543 OFPUTIL_A_POP_MPLS
= 1 << 22,
544 OFPUTIL_A_SET_QUEUE
= 1 << 23,
545 OFPUTIL_A_GROUP
= 1 << 24,
546 OFPUTIL_A_SET_NW_TTL
= 1 << 25,
547 OFPUTIL_A_DEC_NW_TTL
= 1 << 26,
548 OFPUTIL_A_SET_FIELD
= 1 << 27,
551 /* Abstract ofp_switch_features. */
552 struct ofputil_switch_features
{
553 uint64_t datapath_id
; /* Datapath unique ID. */
554 uint32_t n_buffers
; /* Max packets buffered at once. */
555 uint8_t n_tables
; /* Number of tables supported by datapath. */
556 uint8_t auxiliary_id
; /* Identify auxiliary connections */
557 enum ofputil_capabilities capabilities
;
558 enum ofputil_action_bitmap actions
;
561 enum ofperr
ofputil_decode_switch_features(const struct ofp_header
*,
562 struct ofputil_switch_features
*,
565 struct ofpbuf
*ofputil_encode_switch_features(
566 const struct ofputil_switch_features
*, enum ofputil_protocol
,
568 void ofputil_put_switch_features_port(const struct ofputil_phy_port
*,
570 bool ofputil_switch_features_ports_trunc(struct ofpbuf
*b
);
572 /* phy_port helper functions. */
573 int ofputil_pull_phy_port(enum ofp_version ofp_version
, struct ofpbuf
*,
574 struct ofputil_phy_port
*);
575 size_t ofputil_count_phy_ports(uint8_t ofp_version
, struct ofpbuf
*);
577 /* Abstract ofp_port_status. */
578 struct ofputil_port_status
{
579 enum ofp_port_reason reason
;
580 struct ofputil_phy_port desc
;
583 enum ofperr
ofputil_decode_port_status(const struct ofp_header
*,
584 struct ofputil_port_status
*);
585 struct ofpbuf
*ofputil_encode_port_status(const struct ofputil_port_status
*,
586 enum ofputil_protocol
);
588 /* Abstract ofp_port_mod. */
589 struct ofputil_port_mod
{
591 uint8_t hw_addr
[OFP_ETH_ALEN
];
592 enum ofputil_port_config config
;
593 enum ofputil_port_config mask
;
594 enum netdev_features advertise
;
597 enum ofperr
ofputil_decode_port_mod(const struct ofp_header
*,
598 struct ofputil_port_mod
*);
599 struct ofpbuf
*ofputil_encode_port_mod(const struct ofputil_port_mod
*,
600 enum ofputil_protocol
);
602 /* Abstract ofp_table_mod. */
603 struct ofputil_table_mod
{
604 uint8_t table_id
; /* ID of the table, 0xff indicates all tables. */
605 enum ofp_table_config config
;
608 enum ofperr
ofputil_decode_table_mod(const struct ofp_header
*,
609 struct ofputil_table_mod
*);
610 struct ofpbuf
*ofputil_encode_table_mod(const struct ofputil_table_mod
*,
611 enum ofputil_protocol
);
613 /* Abstract ofp_table_features. */
614 struct ofputil_table_features
{
615 uint8_t table_id
; /* Identifier of table. Lower numbered tables
616 are consulted first. */
617 char name
[OFP_MAX_TABLE_NAME_LEN
];
618 ovs_be64 metadata_match
; /* Bits of metadata table can match. */
619 ovs_be64 metadata_write
; /* Bits of metadata table can write. */
620 uint32_t config
; /* Bitmap of OFPTC_* values */
621 uint32_t max_entries
; /* Max number of entries supported. */
623 /* Table features related to instructions. There are two instances:
625 * - 'miss' reports features available in the table miss flow.
627 * - 'nonmiss' reports features available in other flows. */
628 struct ofputil_table_instruction_features
{
629 /* Tables that "goto-table" may jump to. */
630 unsigned long int next
[BITMAP_N_LONGS(255)];
632 /* Bitmap of OVSINST_* for supported instructions. */
633 uint32_t instructions
;
635 /* Table features related to actions. There are two instances:
637 * - 'write' reports features available in a "write_actions"
640 * - 'apply' reports features available in an "apply_actions"
642 struct ofputil_table_action_features
{
643 uint32_t actions
; /* Bitmap of supported OFPAT*. */
644 uint64_t set_fields
; /* Bitmap of MFF_* "set-field" supports. */
650 * For any given field the following combinations are valid:
652 * - match=0, wildcard=0, mask=0: Flows in this table cannot match on
655 * - match=1, wildcard=0, mask=0: Flows in this table must match on all
656 * the bits in this field.
658 * - match=1, wildcard=1, mask=0: Flows in this table must either match
659 * on all the bits in the field or wildcard the field entirely.
661 * - match=1, wildcard=1, mask=1: Flows in this table may arbitrarily
662 * mask this field (as special cases, they may match on all the bits
663 * or wildcard it entirely).
665 * Other combinations do not make sense.
667 uint64_t match
; /* Fields that may be matched. */
668 uint64_t mask
; /* Subset of 'match' that may have masks. */
669 uint64_t wildcard
; /* Subset of 'match' that may be wildcarded. */
672 int ofputil_decode_table_features(struct ofpbuf
*,
673 struct ofputil_table_features
*, bool loose
);
674 struct ofpbuf
*ofputil_encode_table_features_request(
675 enum ofp_version ofp_version
);
676 void ofputil_append_table_features_reply(
677 const struct ofputil_table_features
*tf
,
678 struct list
*replies
);
680 uint16_t table_feature_prop_get_size(enum ofp13_table_feature_prop_type type
);
681 char *table_feature_prop_get_name(enum ofp13_table_feature_prop_type type
);
683 /* Meter band configuration for all supported band types. */
684 struct ofputil_meter_band
{
686 uint8_t prec_level
; /* Non-zero if type == OFPMBT_DSCP_REMARK. */
691 struct ofputil_meter_band_stats
{
692 uint64_t packet_count
;
696 struct ofputil_meter_config
{
700 struct ofputil_meter_band
*bands
;
703 /* Abstract ofp_meter_mod. */
704 struct ofputil_meter_mod
{
706 struct ofputil_meter_config meter
;
709 struct ofputil_meter_stats
{
712 uint64_t packet_in_count
;
713 uint64_t byte_in_count
;
714 uint32_t duration_sec
;
715 uint32_t duration_nsec
;
717 struct ofputil_meter_band_stats
*bands
;
720 struct ofputil_meter_features
{
721 uint32_t max_meters
; /* Maximum number of meters. */
722 uint32_t band_types
; /* Can support max 32 band types. */
723 uint32_t capabilities
; /* Supported flags. */
728 enum ofperr
ofputil_decode_meter_mod(const struct ofp_header
*,
729 struct ofputil_meter_mod
*,
730 struct ofpbuf
*bands
);
731 struct ofpbuf
*ofputil_encode_meter_mod(enum ofp_version
,
732 const struct ofputil_meter_mod
*);
734 void ofputil_decode_meter_features(const struct ofp_header
*,
735 struct ofputil_meter_features
*);
736 struct ofpbuf
*ofputil_encode_meter_features_reply(const struct
737 ofputil_meter_features
*,
738 const struct ofp_header
*
740 void ofputil_decode_meter_request(const struct ofp_header
*,
743 void ofputil_append_meter_config(struct list
*replies
,
744 const struct ofputil_meter_config
*);
746 void ofputil_append_meter_stats(struct list
*replies
,
747 const struct ofputil_meter_stats
*);
749 enum ofputil_meter_request_type
{
750 OFPUTIL_METER_FEATURES
,
751 OFPUTIL_METER_CONFIG
,
755 struct ofpbuf
*ofputil_encode_meter_request(enum ofp_version
,
756 enum ofputil_meter_request_type
,
759 int ofputil_decode_meter_stats(struct ofpbuf
*,
760 struct ofputil_meter_stats
*,
761 struct ofpbuf
*bands
);
763 int ofputil_decode_meter_config(struct ofpbuf
*,
764 struct ofputil_meter_config
*,
765 struct ofpbuf
*bands
);
767 /* Type for meter_id in ofproto provider interface, UINT32_MAX if invalid. */
768 typedef struct { uint32_t uint32
; } ofproto_meter_id
;
770 /* Abstract ofp_role_request and reply. */
771 struct ofputil_role_request
{
772 enum ofp12_controller_role role
;
773 bool have_generation_id
;
774 uint64_t generation_id
;
777 struct ofputil_role_status
{
778 enum ofp12_controller_role role
;
779 enum ofp14_controller_role_reason reason
;
780 uint64_t generation_id
;
783 enum ofperr
ofputil_decode_role_message(const struct ofp_header
*,
784 struct ofputil_role_request
*);
785 struct ofpbuf
*ofputil_encode_role_reply(const struct ofp_header
*,
786 const struct ofputil_role_request
*);
788 struct ofpbuf
*ofputil_encode_role_status(
789 const struct ofputil_role_status
*status
,
790 enum ofputil_protocol protocol
);
792 enum ofperr
ofputil_decode_role_status(const struct ofp_header
*oh
,
793 struct ofputil_role_status
*rs
);
794 /* Abstract table stats.
796 * For now we use ofp12_table_stats as a superset of the other protocol
797 * versions' table stats. */
799 struct ofpbuf
*ofputil_encode_table_stats_reply(
800 const struct ofp12_table_stats
[], int n
,
801 const struct ofp_header
*request
);
803 /* Queue configuration request. */
804 struct ofpbuf
*ofputil_encode_queue_get_config_request(enum ofp_version
,
806 enum ofperr
ofputil_decode_queue_get_config_request(const struct ofp_header
*,
809 /* Queue configuration reply. */
810 struct ofputil_queue_config
{
813 /* Each of these optional values is expressed in tenths of a percent.
814 * Values greater than 1000 indicate that the feature is disabled.
815 * UINT16_MAX indicates that the value is omitted. */
820 struct ofpbuf
*ofputil_encode_queue_get_config_reply(
821 const struct ofp_header
*request
);
822 void ofputil_append_queue_get_config_reply(
823 struct ofpbuf
*reply
, const struct ofputil_queue_config
*);
825 enum ofperr
ofputil_decode_queue_get_config_reply(struct ofpbuf
*reply
,
827 int ofputil_pull_queue_get_config_reply(struct ofpbuf
*reply
,
828 struct ofputil_queue_config
*);
831 /* Abstract nx_flow_monitor_request. */
832 struct ofputil_flow_monitor_request
{
834 enum nx_flow_monitor_flags flags
;
840 int ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request
*,
842 void ofputil_append_flow_monitor_request(
843 const struct ofputil_flow_monitor_request
*, struct ofpbuf
*msg
);
845 /* Abstract nx_flow_update. */
846 struct ofputil_flow_update
{
847 enum nx_flow_update_event event
;
849 /* Used only for NXFME_ADDED, NXFME_DELETED, NXFME_MODIFIED. */
850 enum ofp_flow_removed_reason reason
;
851 uint16_t idle_timeout
;
852 uint16_t hard_timeout
;
857 const struct ofpact
*ofpacts
;
860 /* Used only for NXFME_ABBREV. */
864 int ofputil_decode_flow_update(struct ofputil_flow_update
*,
865 struct ofpbuf
*msg
, struct ofpbuf
*ofpacts
);
866 void ofputil_start_flow_update(struct list
*replies
);
867 void ofputil_append_flow_update(const struct ofputil_flow_update
*,
868 struct list
*replies
);
870 /* Abstract nx_flow_monitor_cancel. */
871 uint32_t ofputil_decode_flow_monitor_cancel(const struct ofp_header
*);
872 struct ofpbuf
*ofputil_encode_flow_monitor_cancel(uint32_t id
);
874 /* Encoding OpenFlow stats messages. */
875 void ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version
,
876 const struct ofputil_phy_port
*pp
,
877 struct list
*replies
);
879 /* Encoding simple OpenFlow messages. */
880 struct ofpbuf
*make_echo_request(enum ofp_version
);
881 struct ofpbuf
*make_echo_reply(const struct ofp_header
*rq
);
883 struct ofpbuf
*ofputil_encode_barrier_request(enum ofp_version
);
885 const char *ofputil_frag_handling_to_string(enum ofp_config_flags
);
886 bool ofputil_frag_handling_from_string(const char *, enum ofp_config_flags
*);
891 /* The type of an action.
893 * For each implemented OFPAT10_* and NXAST_* action type, there is a
894 * corresponding constant prefixed with OFPUTIL_, e.g.:
896 * OFPUTIL_OFPAT10_OUTPUT
897 * OFPUTIL_OFPAT10_SET_VLAN_VID
898 * OFPUTIL_OFPAT10_SET_VLAN_PCP
899 * OFPUTIL_OFPAT10_STRIP_VLAN
900 * OFPUTIL_OFPAT10_SET_DL_SRC
901 * OFPUTIL_OFPAT10_SET_DL_DST
902 * OFPUTIL_OFPAT10_SET_NW_SRC
903 * OFPUTIL_OFPAT10_SET_NW_DST
904 * OFPUTIL_OFPAT10_SET_NW_TOS
905 * OFPUTIL_OFPAT10_SET_TP_SRC
906 * OFPUTIL_OFPAT10_SET_TP_DST
907 * OFPUTIL_OFPAT10_ENQUEUE
908 * OFPUTIL_NXAST_RESUBMIT
909 * OFPUTIL_NXAST_SET_TUNNEL
910 * OFPUTIL_NXAST_SET_METADATA
911 * OFPUTIL_NXAST_SET_QUEUE
912 * OFPUTIL_NXAST_POP_QUEUE
913 * OFPUTIL_NXAST_REG_MOVE
914 * OFPUTIL_NXAST_REG_LOAD
916 * OFPUTIL_NXAST_SET_TUNNEL64
917 * OFPUTIL_NXAST_MULTIPATH
918 * OFPUTIL_NXAST_BUNDLE
919 * OFPUTIL_NXAST_BUNDLE_LOAD
920 * OFPUTIL_NXAST_RESUBMIT_TABLE
921 * OFPUTIL_NXAST_OUTPUT_REG
922 * OFPUTIL_NXAST_LEARN
923 * OFPUTIL_NXAST_DEC_TTL
924 * OFPUTIL_NXAST_FIN_TIMEOUT
926 * (The above list helps developers who want to "grep" for these definitions.)
928 enum OVS_PACKED_ENUM ofputil_action_code
{
929 OFPUTIL_ACTION_INVALID
,
930 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) OFPUTIL_##ENUM,
931 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
932 #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
933 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
934 #include "ofp-util.def"
937 /* The number of values of "enum ofputil_action_code". */
939 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) + 1
940 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
941 #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
942 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
943 OFPUTIL_N_ACTIONS
= 1
944 #include "ofp-util.def"
947 int ofputil_action_code_from_name(const char *);
948 const char * ofputil_action_name_from_code(enum ofputil_action_code code
);
949 enum ofputil_action_code
ofputil_action_code_from_ofp13_action(
950 enum ofp13_action_type type
);
952 void *ofputil_put_action(enum ofputil_action_code
, struct ofpbuf
*buf
);
954 /* For each OpenFlow action <ENUM> that has a corresponding action structure
955 * struct <STRUCT>, this defines two functions:
957 * void ofputil_init_<ENUM>(struct <STRUCT> *action);
959 * Initializes the parts of 'action' that identify it as having type <ENUM>
960 * and length 'sizeof *action' and zeros the rest. For actions that have
961 * variable length, the length used and cleared is that of struct <STRUCT>.
963 * struct <STRUCT> *ofputil_put_<ENUM>(struct ofpbuf *buf);
965 * Appends a new 'action', of length 'sizeof(struct <STRUCT>)', to 'buf',
966 * initializes it with ofputil_init_<ENUM>(), and returns it.
968 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
969 void ofputil_init_##ENUM(struct STRUCT *); \
970 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
971 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
972 void ofputil_init_##ENUM(struct STRUCT *); \
973 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
974 #define OFPAT13_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
975 void ofputil_init_##ENUM(struct STRUCT *); \
976 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
977 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
978 void ofputil_init_##ENUM(struct STRUCT *); \
979 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
980 #include "ofp-util.def"
982 #define OFP_ACTION_ALIGN 8 /* Alignment of ofp_actions. */
984 bool action_outputs_to_port(const union ofp_action
*, ovs_be16 port
);
986 enum ofperr
ofputil_pull_actions(struct ofpbuf
*, unsigned int actions_len
,
987 union ofp_action
**, size_t *);
989 bool ofputil_actions_equal(const union ofp_action
*a
, size_t n_a
,
990 const union ofp_action
*b
, size_t n_b
);
991 union ofp_action
*ofputil_actions_clone(const union ofp_action
*, size_t n
);
993 /* Handy utility for parsing flows and actions. */
994 bool ofputil_parse_key_value(char **stringp
, char **keyp
, char **valuep
);
996 struct ofputil_port_stats
{
998 struct netdev_stats stats
;
999 uint32_t duration_sec
; /* UINT32_MAX if unknown. */
1000 uint32_t duration_nsec
;
1003 struct ofpbuf
*ofputil_encode_dump_ports_request(enum ofp_version ofp_version
,
1005 void ofputil_append_port_stat(struct list
*replies
,
1006 const struct ofputil_port_stats
*ops
);
1007 size_t ofputil_count_port_stats(const struct ofp_header
*);
1008 int ofputil_decode_port_stats(struct ofputil_port_stats
*, struct ofpbuf
*msg
);
1009 enum ofperr
ofputil_decode_port_stats_request(const struct ofp_header
*request
,
1010 ofp_port_t
*ofp10_port
);
1012 struct ofputil_queue_stats_request
{
1013 ofp_port_t port_no
; /* OFPP_ANY means "all ports". */
1018 ofputil_decode_queue_stats_request(const struct ofp_header
*request
,
1019 struct ofputil_queue_stats_request
*oqsr
);
1021 ofputil_encode_queue_stats_request(enum ofp_version ofp_version
,
1022 const struct ofputil_queue_stats_request
*oqsr
);
1024 struct ofputil_queue_stats
{
1028 /* Values of unsupported statistics are set to all-1-bits (UINT64_MAX). */
1030 uint64_t tx_packets
;
1033 /* UINT32_MAX if unknown. */
1034 uint32_t duration_sec
;
1035 uint32_t duration_nsec
;
1038 size_t ofputil_count_queue_stats(const struct ofp_header
*);
1039 int ofputil_decode_queue_stats(struct ofputil_queue_stats
*qs
, struct ofpbuf
*msg
);
1040 void ofputil_append_queue_stat(struct list
*replies
,
1041 const struct ofputil_queue_stats
*oqs
);
1043 /* Bucket for use in groups. */
1044 struct ofputil_bucket
{
1045 struct list list_node
;
1046 uint16_t weight
; /* Relative weight, for "select" groups. */
1047 ofp_port_t watch_port
; /* Port whose state affects whether this bucket
1048 * is live. Only required for fast failover
1050 uint32_t watch_group
; /* Group whose state affects whether this
1051 * bucket is live. Only required for fast
1052 * failover groups. */
1053 struct ofpact
*ofpacts
; /* Series of "struct ofpact"s. */
1054 size_t ofpacts_len
; /* Length of ofpacts, in bytes. */
1057 /* Protocol-independent group_mod. */
1058 struct ofputil_group_mod
{
1059 uint16_t command
; /* One of OFPGC11_*. */
1060 uint8_t type
; /* One of OFPGT11_*. */
1061 uint32_t group_id
; /* Group identifier. */
1062 struct list buckets
; /* Contains "struct ofputil_bucket"s. */
1065 struct bucket_counter
{
1066 uint64_t packet_count
; /* Number of packets processed by bucket. */
1067 uint64_t byte_count
; /* Number of bytes processed by bucket. */
1070 /* Group stats reply, independent of protocol. */
1071 struct ofputil_group_stats
{
1072 uint32_t group_id
; /* Group identifier. */
1074 uint64_t packet_count
; /* Packet count, UINT64_MAX if unknown. */
1075 uint64_t byte_count
; /* Byte count, UINT64_MAX if unknown. */
1076 uint32_t duration_sec
; /* UINT32_MAX if unknown. */
1077 uint32_t duration_nsec
;
1079 struct bucket_counter
*bucket_stats
;
1082 /* Group features reply, independent of protocol.
1084 * Only OF1.2 and later support group features replies. */
1085 struct ofputil_group_features
{
1086 uint32_t types
; /* Bitmap of OFPGT_* values supported. */
1087 uint32_t capabilities
; /* Bitmap of OFPGFC12_* capability supported. */
1088 uint32_t max_groups
[4]; /* Maximum number of groups for each type. */
1090 /* Bitmaps of OFPAT_* that are supported. OF1.2+ actions only. */
1091 uint32_t actions
[4];
1094 /* Group desc reply, independent of protocol. */
1095 struct ofputil_group_desc
{
1096 uint8_t type
; /* One of OFPGT_*. */
1097 uint32_t group_id
; /* Group identifier. */
1098 struct list buckets
; /* Contains "struct ofputil_bucket"s. */
1101 void ofputil_bucket_list_destroy(struct list
*buckets
);
1104 ofputil_bucket_has_liveness(const struct ofputil_bucket
*bucket
)
1106 return (bucket
->watch_port
!= OFPP_ANY
||
1107 bucket
->watch_group
!= OFPG_ANY
);
1110 struct ofpbuf
*ofputil_encode_group_stats_request(enum ofp_version
,
1112 enum ofperr
ofputil_decode_group_stats_request(
1113 const struct ofp_header
*request
, uint32_t *group_id
);
1114 void ofputil_append_group_stats(struct list
*replies
,
1115 const struct ofputil_group_stats
*);
1116 struct ofpbuf
*ofputil_encode_group_features_request(enum ofp_version
);
1117 struct ofpbuf
*ofputil_encode_group_features_reply(
1118 const struct ofputil_group_features
*, const struct ofp_header
*request
);
1119 void ofputil_decode_group_features_reply(const struct ofp_header
*,
1120 struct ofputil_group_features
*);
1121 struct ofpbuf
*ofputil_encode_group_mod(enum ofp_version ofp_version
,
1122 const struct ofputil_group_mod
*gm
);
1124 enum ofperr
ofputil_decode_group_mod(const struct ofp_header
*,
1125 struct ofputil_group_mod
*);
1127 int ofputil_decode_group_stats_reply(struct ofpbuf
*,
1128 struct ofputil_group_stats
*);
1130 int ofputil_decode_group_desc_reply(struct ofputil_group_desc
*,
1131 struct ofpbuf
*, enum ofp_version
);
1133 void ofputil_append_group_desc_reply(const struct ofputil_group_desc
*,
1134 struct list
*buckets
,
1135 struct list
*replies
);
1136 struct ofpbuf
*ofputil_encode_group_desc_request(enum ofp_version
);
1138 #endif /* ofp-util.h */