2 * Copyright (c) 2008, 2009, 2010, 2011, 2012 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.
24 #include "classifier.h"
29 #include "openflow/nicira-ext.h"
30 #include "openvswitch/types.h"
35 enum ofperr ofputil_port_from_ofp11(ovs_be32 ofp11_port, uint16_t *ofp10_port);
36 ovs_be32 ofputil_port_to_ofp11(uint16_t ofp10_port);
38 enum ofperr ofputil_check_output_port(uint16_t ofp_port, int max_ports);
39 bool ofputil_port_from_string(const char *, uint16_t *portp);
40 void ofputil_format_port(uint16_t port, struct ds *);
42 /* Converting OFPFW10_NW_SRC_MASK and OFPFW10_NW_DST_MASK wildcard bit counts
43 * to and from IP bitmasks. */
44 ovs_be32 ofputil_wcbits_to_netmask(int wcbits);
45 int ofputil_netmask_to_wcbits(ovs_be32 netmask);
49 * These are arranged from most portable to least portable, or alternatively
50 * from least powerful to most powerful. Formats earlier on the list are more
51 * likely to be understood for the purpose of making requests, but formats
52 * later on the list are more likely to accurately describe a flow within a
55 * On any given OpenFlow connection, a single protocol is in effect at any
56 * given time. These values use separate bits only because that makes it easy
57 * to test whether a particular protocol is within a given set of protocols and
58 * to implement set union and intersection.
60 enum ofputil_protocol {
61 /* OpenFlow 1.0-based protocols. */
62 OFPUTIL_P_OF10 = 1 << 0, /* OpenFlow 1.0 flow format. */
63 OFPUTIL_P_OF10_TID = 1 << 1, /* OF1.0 + flow_mod_table_id extension. */
64 #define OFPUTIL_P_OF10_ANY (OFPUTIL_P_OF10 | OFPUTIL_P_OF10_TID)
66 /* OpenFlow 1.0 with NXM-based flow formats. */
67 OFPUTIL_P_NXM = 1 << 2, /* Nicira extended match. */
68 OFPUTIL_P_NXM_TID = 1 << 3, /* NXM + flow_mod_table_id extension. */
69 #define OFPUTIL_P_NXM_ANY (OFPUTIL_P_NXM | OFPUTIL_P_NXM_TID)
72 OFPUTIL_P_OF12 = 1 << 4, /* OpenFlow 1.2 flow format. */
75 #define OFPUTIL_P_ANY (OFPUTIL_P_OF10_ANY | OFPUTIL_P_NXM_ANY)
77 /* Protocols in which a specific table may be specified in flow_mods. */
78 #define OFPUTIL_P_TID (OFPUTIL_P_OF10_TID | OFPUTIL_P_NXM_TID)
81 /* Protocols to use for flow dumps, from most to least preferred. */
82 extern enum ofputil_protocol ofputil_flow_dump_protocols[];
83 extern size_t ofputil_n_flow_dump_protocols;
86 ofputil_protocol_from_ofp_version(enum ofp_version version);
87 enum ofp_version ofputil_protocol_to_ofp_version(enum ofputil_protocol);
89 bool ofputil_protocol_is_valid(enum ofputil_protocol);
90 enum ofputil_protocol ofputil_protocol_set_tid(enum ofputil_protocol,
92 enum ofputil_protocol ofputil_protocol_to_base(enum ofputil_protocol);
93 enum ofputil_protocol ofputil_protocol_set_base(
94 enum ofputil_protocol cur, enum ofputil_protocol new_base);
96 const char *ofputil_protocol_to_string(enum ofputil_protocol);
97 char *ofputil_protocols_to_string(enum ofputil_protocol);
98 enum ofputil_protocol ofputil_protocols_from_string(const char *);
99 enum ofputil_protocol ofputil_usable_protocols(const struct match *);
101 void ofputil_format_version(struct ds *, enum ofp_version);
102 void ofputil_format_version_name(struct ds *, enum ofp_version);
104 /* A bitmap of version numbers
106 * Bit offsets correspond to ofp_version numbers which in turn correspond to
107 * wire-protocol numbers for Open Flow versions.. E.g. (1u << OFP11_VERSION)
108 * is the mask for Open Flow 1.1. If the bit for a version is set then it is
109 * allowed, otherwise it is disallowed. */
111 void ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap);
112 void ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap);
114 /* Bitmap of OpenFlow versions that Open vSwitch supports. */
115 #define OFPUTIL_SUPPORTED_VERSIONS \
116 ((1u << OFP10_VERSION) | (1u << OFP12_VERSION))
118 /* Bitmap of OpenFlow versions to enable by default (a subset of
119 * OFPUTIL_SUPPORTED_VERSIONS). */
120 #define OFPUTIL_DEFAULT_VERSIONS (1u << OFP10_VERSION)
122 enum ofputil_protocol ofputil_protocols_from_string(const char *s);
124 const char *ofputil_version_to_string(enum ofp_version ofp_version);
125 uint32_t ofputil_versions_from_string(const char *s);
127 struct ofpbuf *ofputil_encode_set_protocol(enum ofputil_protocol current,
128 enum ofputil_protocol want,
129 enum ofputil_protocol *next);
132 struct ofpbuf *ofputil_encode_nx_set_flow_format(enum nx_flow_format);
133 enum ofputil_protocol ofputil_nx_flow_format_to_protocol(enum nx_flow_format);
134 bool ofputil_nx_flow_format_is_valid(enum nx_flow_format);
135 const char *ofputil_nx_flow_format_to_string(enum nx_flow_format);
137 /* Work with ofp10_match. */
138 void ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *);
139 void ofputil_match_from_ofp10_match(const struct ofp10_match *,
141 void ofputil_normalize_match(struct match *);
142 void ofputil_normalize_match_quiet(struct match *);
143 void ofputil_match_to_ofp10_match(const struct match *, struct ofp10_match *);
145 /* Work with ofp11_match. */
146 enum ofperr ofputil_pull_ofp11_match(struct ofpbuf *, struct match *,
147 uint16_t *padded_match_len);
148 enum ofperr ofputil_match_from_ofp11_match(const struct ofp11_match *,
150 void ofputil_match_to_ofp11_match(const struct match *, struct ofp11_match *);
152 /* dl_type translation between OpenFlow and 'struct flow' format. */
153 ovs_be16 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type);
154 ovs_be16 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type);
157 bool ofputil_packet_in_format_is_valid(enum nx_packet_in_format);
158 int ofputil_packet_in_format_from_string(const char *);
159 const char *ofputil_packet_in_format_to_string(enum nx_packet_in_format);
160 struct ofpbuf *ofputil_make_set_packet_in_format(enum ofp_version,
161 enum nx_packet_in_format);
163 /* NXT_FLOW_MOD_TABLE_ID extension. */
164 struct ofpbuf *ofputil_make_flow_mod_table_id(bool flow_mod_table_id);
166 /* Protocol-independent flow_mod.
168 * The handling of cookies across multiple versions of OpenFlow is a bit
169 * confusing. A full description of Open vSwitch's cookie handling is
170 * in the DESIGN file. The following table shows the expected values of
171 * the cookie-related fields for the different flow_mod commands in
172 * OpenFlow 1.0 ("OF10") and NXM. "<used>" and "-" indicate a value
173 * that may be populated and an ignored field, respectively.
175 * cookie cookie_mask new_cookie
176 * ====== =========== ==========
177 * OF10 Add - 0 <used>
178 * OF10 Modify - 0 <used>
181 * NXM Modify <used> <used> <used>
182 * NXM Delete <used> <used> -
184 struct ofputil_flow_mod {
186 unsigned int priority;
187 ovs_be64 cookie; /* Cookie bits to match. */
188 ovs_be64 cookie_mask; /* 1-bit in each 'cookie' bit to match. */
189 ovs_be64 new_cookie; /* New cookie to install or -1. */
192 uint16_t idle_timeout;
193 uint16_t hard_timeout;
197 struct ofpact *ofpacts; /* Series of "struct ofpact"s. */
198 size_t ofpacts_len; /* Length of ofpacts, in bytes. */
201 enum ofperr ofputil_decode_flow_mod(struct ofputil_flow_mod *,
202 const struct ofp_header *,
203 enum ofputil_protocol,
204 struct ofpbuf *ofpacts);
205 struct ofpbuf *ofputil_encode_flow_mod(const struct ofputil_flow_mod *,
206 enum ofputil_protocol);
208 enum ofputil_protocol ofputil_flow_mod_usable_protocols(
209 const struct ofputil_flow_mod *fms, size_t n_fms);
211 /* Flow stats or aggregate stats request, independent of protocol. */
212 struct ofputil_flow_stats_request {
213 bool aggregate; /* Aggregate results? */
216 ovs_be64 cookie_mask;
221 enum ofperr ofputil_decode_flow_stats_request(
222 struct ofputil_flow_stats_request *, const struct ofp_header *);
223 struct ofpbuf *ofputil_encode_flow_stats_request(
224 const struct ofputil_flow_stats_request *, enum ofputil_protocol);
225 enum ofputil_protocol ofputil_flow_stats_request_usable_protocols(
226 const struct ofputil_flow_stats_request *);
228 /* Flow stats reply, independent of protocol. */
229 struct ofputil_flow_stats {
233 uint32_t duration_sec;
234 uint32_t duration_nsec;
236 uint16_t idle_timeout;
237 uint16_t hard_timeout;
238 int idle_age; /* Seconds since last packet, -1 if unknown. */
239 int hard_age; /* Seconds since last change, -1 if unknown. */
240 uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
241 uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
242 struct ofpact *ofpacts;
246 int ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *,
248 bool flow_age_extension,
249 struct ofpbuf *ofpacts);
250 void ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *,
251 struct list *replies);
253 /* Aggregate stats reply, independent of protocol. */
254 struct ofputil_aggregate_stats {
255 uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
256 uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
260 struct ofpbuf *ofputil_encode_aggregate_stats_reply(
261 const struct ofputil_aggregate_stats *stats,
262 const struct ofp_header *request);
263 enum ofperr ofputil_decode_aggregate_stats_reply(
264 struct ofputil_aggregate_stats *,
265 const struct ofp_header *reply);
267 /* Flow removed message, independent of protocol. */
268 struct ofputil_flow_removed {
272 uint8_t reason; /* One of OFPRR_*. */
273 uint8_t table_id; /* 255 if message didn't include table ID. */
274 uint32_t duration_sec;
275 uint32_t duration_nsec;
276 uint16_t idle_timeout;
277 uint16_t hard_timeout;
278 uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
279 uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
282 enum ofperr ofputil_decode_flow_removed(struct ofputil_flow_removed *,
283 const struct ofp_header *);
284 struct ofpbuf *ofputil_encode_flow_removed(const struct ofputil_flow_removed *,
285 enum ofputil_protocol);
287 /* Abstract packet-in message. */
288 struct ofputil_packet_in {
292 enum ofp_packet_in_reason reason; /* One of OFPR_*. */
293 uint16_t controller_id; /* Controller ID to send to. */
299 uint16_t total_len; /* Full length of frame. */
301 struct flow_metadata fmd; /* Metadata at creation time. */
304 enum ofperr ofputil_decode_packet_in(struct ofputil_packet_in *,
305 const struct ofp_header *);
306 struct ofpbuf *ofputil_encode_packet_in(const struct ofputil_packet_in *,
307 enum ofputil_protocol protocol,
308 enum nx_packet_in_format);
310 const char *ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason);
311 bool ofputil_packet_in_reason_from_string(const char *,
312 enum ofp_packet_in_reason *);
314 /* Abstract packet-out message.
316 * ofputil_decode_packet_out() will ensure that 'in_port' is a physical port
317 * (OFPP_MAX or less) or one of OFPP_LOCAL, OFPP_NONE, or OFPP_CONTROLLER. */
318 struct ofputil_packet_out {
319 const void *packet; /* Packet data, if buffer_id == UINT32_MAX. */
320 size_t packet_len; /* Length of packet data in bytes. */
321 uint32_t buffer_id; /* Buffer id or UINT32_MAX if no buffer. */
322 uint16_t in_port; /* Packet's input port. */
323 struct ofpact *ofpacts; /* Actions. */
324 size_t ofpacts_len; /* Size of ofpacts in bytes. */
327 enum ofperr ofputil_decode_packet_out(struct ofputil_packet_out *,
328 const struct ofp_header *,
329 struct ofpbuf *ofpacts);
330 struct ofpbuf *ofputil_encode_packet_out(const struct ofputil_packet_out *,
331 enum ofputil_protocol protocol);
333 enum ofputil_port_config {
334 /* OpenFlow 1.0 and 1.1 share these values for these port config bits. */
335 OFPUTIL_PC_PORT_DOWN = 1 << 0, /* Port is administratively down. */
336 OFPUTIL_PC_NO_RECV = 1 << 2, /* Drop all packets received by port. */
337 OFPUTIL_PC_NO_FWD = 1 << 5, /* Drop packets forwarded to port. */
338 OFPUTIL_PC_NO_PACKET_IN = 1 << 6, /* No send packet-in msgs for port. */
339 /* OpenFlow 1.0 only. */
340 OFPUTIL_PC_NO_STP = 1 << 1, /* No 802.1D spanning tree for port. */
341 OFPUTIL_PC_NO_RECV_STP = 1 << 3, /* Drop received 802.1D STP packets. */
342 OFPUTIL_PC_NO_FLOOD = 1 << 4, /* Do not include port when flooding. */
343 /* There are no OpenFlow 1.1-only bits. */
346 enum ofputil_port_state {
347 /* OpenFlow 1.0 and 1.1 share this values for these port state bits. */
348 OFPUTIL_PS_LINK_DOWN = 1 << 0, /* No physical link present. */
349 /* OpenFlow 1.1 only. */
350 OFPUTIL_PS_BLOCKED = 1 << 1, /* Port is blocked */
351 OFPUTIL_PS_LIVE = 1 << 2, /* Live for Fast Failover Group. */
352 /* OpenFlow 1.0 only. */
353 OFPUTIL_PS_STP_LISTEN = 0 << 8, /* Not learning or relaying frames. */
354 OFPUTIL_PS_STP_LEARN = 1 << 8, /* Learning but not relaying frames. */
355 OFPUTIL_PS_STP_FORWARD = 2 << 8, /* Learning and relaying frames. */
356 OFPUTIL_PS_STP_BLOCK = 3 << 8, /* Not part of spanning tree. */
357 OFPUTIL_PS_STP_MASK = 3 << 8 /* Bit mask for OFPPS10_STP_* values. */
360 /* Abstract ofp10_phy_port or ofp11_port. */
361 struct ofputil_phy_port {
363 uint8_t hw_addr[OFP_ETH_ALEN];
364 char name[OFP_MAX_PORT_NAME_LEN];
365 enum ofputil_port_config config;
366 enum ofputil_port_state state;
368 /* NETDEV_F_* feature bitmasks. */
369 enum netdev_features curr; /* Current features. */
370 enum netdev_features advertised; /* Features advertised by the port. */
371 enum netdev_features supported; /* Features supported by the port. */
372 enum netdev_features peer; /* Features advertised by peer. */
375 uint32_t curr_speed; /* Current speed, in kbps. */
376 uint32_t max_speed; /* Maximum supported speed, in kbps. */
379 enum ofputil_capabilities {
380 /* OpenFlow 1.0, 1.1 and 1.2 share these values for these capabilities. */
381 OFPUTIL_C_FLOW_STATS = 1 << 0, /* Flow statistics. */
382 OFPUTIL_C_TABLE_STATS = 1 << 1, /* Table statistics. */
383 OFPUTIL_C_PORT_STATS = 1 << 2, /* Port statistics. */
384 OFPUTIL_C_IP_REASM = 1 << 5, /* Can reassemble IP fragments. */
385 OFPUTIL_C_QUEUE_STATS = 1 << 6, /* Queue statistics. */
387 /* OpenFlow 1.0 and 1.1 share this capability. */
388 OFPUTIL_C_ARP_MATCH_IP = 1 << 7, /* Match IP addresses in ARP pkts. */
390 /* OpenFlow 1.0 only. */
391 OFPUTIL_C_STP = 1 << 3, /* 802.1d spanning tree. */
393 /* OpenFlow 1.1 and 1.2 share this capability. */
394 OFPUTIL_C_GROUP_STATS = 1 << 4, /* Group statistics. */
396 /* OpenFlow 1.2 only */
397 OFPUTIL_C_PORT_BLOCKED = 1 << 8, /* Switch will block looping ports */
400 enum ofputil_action_bitmap {
401 OFPUTIL_A_OUTPUT = 1 << 0,
402 OFPUTIL_A_SET_VLAN_VID = 1 << 1,
403 OFPUTIL_A_SET_VLAN_PCP = 1 << 2,
404 OFPUTIL_A_STRIP_VLAN = 1 << 3,
405 OFPUTIL_A_SET_DL_SRC = 1 << 4,
406 OFPUTIL_A_SET_DL_DST = 1 << 5,
407 OFPUTIL_A_SET_NW_SRC = 1 << 6,
408 OFPUTIL_A_SET_NW_DST = 1 << 7,
409 OFPUTIL_A_SET_NW_ECN = 1 << 8,
410 OFPUTIL_A_SET_NW_TOS = 1 << 9,
411 OFPUTIL_A_SET_TP_SRC = 1 << 10,
412 OFPUTIL_A_SET_TP_DST = 1 << 11,
413 OFPUTIL_A_ENQUEUE = 1 << 12,
414 OFPUTIL_A_COPY_TTL_OUT = 1 << 13,
415 OFPUTIL_A_COPY_TTL_IN = 1 << 14,
416 OFPUTIL_A_SET_MPLS_LABEL = 1 << 15,
417 OFPUTIL_A_SET_MPLS_TC = 1 << 16,
418 OFPUTIL_A_SET_MPLS_TTL = 1 << 17,
419 OFPUTIL_A_DEC_MPLS_TTL = 1 << 18,
420 OFPUTIL_A_PUSH_VLAN = 1 << 19,
421 OFPUTIL_A_POP_VLAN = 1 << 20,
422 OFPUTIL_A_PUSH_MPLS = 1 << 21,
423 OFPUTIL_A_POP_MPLS = 1 << 22,
424 OFPUTIL_A_SET_QUEUE = 1 << 23,
425 OFPUTIL_A_GROUP = 1 << 24,
426 OFPUTIL_A_SET_NW_TTL = 1 << 25,
427 OFPUTIL_A_DEC_NW_TTL = 1 << 26,
428 OFPUTIL_A_SET_FIELD = 1 << 27,
431 /* Abstract ofp_switch_features. */
432 struct ofputil_switch_features {
433 uint64_t datapath_id; /* Datapath unique ID. */
434 uint32_t n_buffers; /* Max packets buffered at once. */
435 uint8_t n_tables; /* Number of tables supported by datapath. */
436 enum ofputil_capabilities capabilities;
437 enum ofputil_action_bitmap actions;
440 enum ofperr ofputil_decode_switch_features(const struct ofp_header *,
441 struct ofputil_switch_features *,
444 struct ofpbuf *ofputil_encode_switch_features(
445 const struct ofputil_switch_features *, enum ofputil_protocol,
447 void ofputil_put_switch_features_port(const struct ofputil_phy_port *,
449 bool ofputil_switch_features_ports_trunc(struct ofpbuf *b);
451 /* phy_port helper functions. */
452 int ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *,
453 struct ofputil_phy_port *);
454 size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *);
456 /* Abstract ofp_port_status. */
457 struct ofputil_port_status {
458 enum ofp_port_reason reason;
459 struct ofputil_phy_port desc;
462 enum ofperr ofputil_decode_port_status(const struct ofp_header *,
463 struct ofputil_port_status *);
464 struct ofpbuf *ofputil_encode_port_status(const struct ofputil_port_status *,
465 enum ofputil_protocol);
467 /* Abstract ofp_port_mod. */
468 struct ofputil_port_mod {
470 uint8_t hw_addr[OFP_ETH_ALEN];
471 enum ofputil_port_config config;
472 enum ofputil_port_config mask;
473 enum netdev_features advertise;
476 enum ofperr ofputil_decode_port_mod(const struct ofp_header *,
477 struct ofputil_port_mod *);
478 struct ofpbuf *ofputil_encode_port_mod(const struct ofputil_port_mod *,
479 enum ofputil_protocol);
481 /* Abstract table stats.
483 * For now we use ofp12_table_stats as a superset of the other protocol
484 * versions' table stats. */
486 struct ofpbuf *ofputil_encode_table_stats_reply(
487 const struct ofp12_table_stats[], int n,
488 const struct ofp_header *request);
490 /* Abstract nx_flow_monitor_request. */
491 struct ofputil_flow_monitor_request {
493 enum nx_flow_monitor_flags flags;
499 int ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *,
501 void ofputil_append_flow_monitor_request(
502 const struct ofputil_flow_monitor_request *, struct ofpbuf *msg);
504 /* Abstract nx_flow_update. */
505 struct ofputil_flow_update {
506 enum nx_flow_update_event event;
508 /* Used only for NXFME_ADDED, NXFME_DELETED, NXFME_MODIFIED. */
509 enum ofp_flow_removed_reason reason;
510 uint16_t idle_timeout;
511 uint16_t hard_timeout;
516 struct ofpact *ofpacts;
519 /* Used only for NXFME_ABBREV. */
523 int ofputil_decode_flow_update(struct ofputil_flow_update *,
524 struct ofpbuf *msg, struct ofpbuf *ofpacts);
525 void ofputil_start_flow_update(struct list *replies);
526 void ofputil_append_flow_update(const struct ofputil_flow_update *,
527 struct list *replies);
529 /* Abstract nx_flow_monitor_cancel. */
530 uint32_t ofputil_decode_flow_monitor_cancel(const struct ofp_header *);
531 struct ofpbuf *ofputil_encode_flow_monitor_cancel(uint32_t id);
533 /* Encoding OpenFlow stats messages. */
534 void ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version,
535 const struct ofputil_phy_port *pp,
536 struct list *replies);
538 /* Encoding simple OpenFlow messages. */
539 struct ofpbuf *make_echo_request(enum ofp_version);
540 struct ofpbuf *make_echo_reply(const struct ofp_header *rq);
542 struct ofpbuf *ofputil_encode_barrier_request(enum ofp_version);
544 const char *ofputil_frag_handling_to_string(enum ofp_config_flags);
545 bool ofputil_frag_handling_from_string(const char *, enum ofp_config_flags *);
550 /* The type of an action.
552 * For each implemented OFPAT10_* and NXAST_* action type, there is a
553 * corresponding constant prefixed with OFPUTIL_, e.g.:
555 * OFPUTIL_OFPAT10_OUTPUT
556 * OFPUTIL_OFPAT10_SET_VLAN_VID
557 * OFPUTIL_OFPAT10_SET_VLAN_PCP
558 * OFPUTIL_OFPAT10_STRIP_VLAN
559 * OFPUTIL_OFPAT10_SET_DL_SRC
560 * OFPUTIL_OFPAT10_SET_DL_DST
561 * OFPUTIL_OFPAT10_SET_NW_SRC
562 * OFPUTIL_OFPAT10_SET_NW_DST
563 * OFPUTIL_OFPAT10_SET_NW_TOS
564 * OFPUTIL_OFPAT10_SET_TP_SRC
565 * OFPUTIL_OFPAT10_SET_TP_DST
566 * OFPUTIL_OFPAT10_ENQUEUE
567 * OFPUTIL_NXAST_RESUBMIT
568 * OFPUTIL_NXAST_SET_TUNNEL
569 * OFPUTIL_NXAST_SET_METADATA
570 * OFPUTIL_NXAST_SET_QUEUE
571 * OFPUTIL_NXAST_POP_QUEUE
572 * OFPUTIL_NXAST_REG_MOVE
573 * OFPUTIL_NXAST_REG_LOAD
575 * OFPUTIL_NXAST_SET_TUNNEL64
576 * OFPUTIL_NXAST_MULTIPATH
577 * OFPUTIL_NXAST_AUTOPATH
578 * OFPUTIL_NXAST_BUNDLE
579 * OFPUTIL_NXAST_BUNDLE_LOAD
580 * OFPUTIL_NXAST_RESUBMIT_TABLE
581 * OFPUTIL_NXAST_OUTPUT_REG
582 * OFPUTIL_NXAST_LEARN
583 * OFPUTIL_NXAST_DEC_TTL
584 * OFPUTIL_NXAST_FIN_TIMEOUT
586 * (The above list helps developers who want to "grep" for these definitions.)
588 enum OVS_PACKED_ENUM ofputil_action_code {
589 OFPUTIL_ACTION_INVALID,
590 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) OFPUTIL_##ENUM,
591 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
592 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
593 #include "ofp-util.def"
596 /* The number of values of "enum ofputil_action_code". */
598 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) + 1
599 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
600 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
601 OFPUTIL_N_ACTIONS = 1
602 #include "ofp-util.def"
605 int ofputil_action_code_from_name(const char *);
607 void *ofputil_put_action(enum ofputil_action_code, struct ofpbuf *buf);
609 /* For each OpenFlow action <ENUM> that has a corresponding action structure
610 * struct <STRUCT>, this defines two functions:
612 * void ofputil_init_<ENUM>(struct <STRUCT> *action);
614 * Initializes the parts of 'action' that identify it as having type <ENUM>
615 * and length 'sizeof *action' and zeros the rest. For actions that have
616 * variable length, the length used and cleared is that of struct <STRUCT>.
618 * struct <STRUCT> *ofputil_put_<ENUM>(struct ofpbuf *buf);
620 * Appends a new 'action', of length 'sizeof(struct <STRUCT>)', to 'buf',
621 * initializes it with ofputil_init_<ENUM>(), and returns it.
623 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
624 void ofputil_init_##ENUM(struct STRUCT *); \
625 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
626 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
627 void ofputil_init_##ENUM(struct STRUCT *); \
628 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
629 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
630 void ofputil_init_##ENUM(struct STRUCT *); \
631 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
632 #include "ofp-util.def"
634 #define OFP_ACTION_ALIGN 8 /* Alignment of ofp_actions. */
636 enum ofperr validate_actions(const union ofp_action *, size_t n_actions,
637 const struct flow *, int max_ports);
638 bool action_outputs_to_port(const union ofp_action *, ovs_be16 port);
640 enum ofperr ofputil_pull_actions(struct ofpbuf *, unsigned int actions_len,
641 union ofp_action **, size_t *);
643 bool ofputil_actions_equal(const union ofp_action *a, size_t n_a,
644 const union ofp_action *b, size_t n_b);
645 union ofp_action *ofputil_actions_clone(const union ofp_action *, size_t n);
647 /* Handy utility for parsing flows and actions. */
648 bool ofputil_parse_key_value(char **stringp, char **keyp, char **valuep);
650 struct ofpbuf *ofputlil_dump_ports(enum ofp_version ofp_version, int16_t port);
652 struct ofputil_port_stats {
654 struct netdev_stats stats;
657 struct ofpbuf *ofputil_encode_dump_ports_request(enum ofp_version ofp_version,
659 void ofputil_append_port_stat(struct list *replies,
660 const struct ofputil_port_stats *ops);
661 size_t ofputil_count_port_stats(const struct ofp_header *);
662 int ofputil_decode_port_stats(struct ofputil_port_stats *, struct ofpbuf *msg);
663 enum ofperr ofputil_decode_port_stats_request(const struct ofp_header *request,
664 uint16_t *ofp10_port);
666 struct ofputil_queue_stats_request {
672 ofputil_decode_queue_stats_request(const struct ofp_header *request,
673 struct ofputil_queue_stats_request *oqsr);
675 ofputil_encode_queue_stats_request(enum ofp_version ofp_version,
676 const struct ofputil_queue_stats_request *oqsr);
678 struct ofputil_queue_stats {
681 struct netdev_queue_stats stats;
684 size_t ofputil_count_queue_stats(const struct ofp_header *);
685 int ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg);
686 void ofputil_append_queue_stat(struct list *replies,
687 const struct ofputil_queue_stats *oqs);
689 #endif /* ofp-util.h */