2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 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.
23 #include "classifier.h"
28 #include "openflow/nicira-ext.h"
29 #include "openvswitch/types.h"
30 #include "type-props.h"
35 enum ofperr ofputil_port_from_ofp11(ovs_be32 ofp11_port,
36 ofp_port_t *ofp10_port);
37 ovs_be32 ofputil_port_to_ofp11(ofp_port_t ofp10_port);
39 enum ofperr ofputil_check_output_port(ofp_port_t ofp_port,
40 ofp_port_t max_ports);
41 bool ofputil_port_from_string(const char *, ofp_port_t *portp);
42 void ofputil_format_port(ofp_port_t port, struct ds *);
44 /* Converting OFPFW10_NW_SRC_MASK and OFPFW10_NW_DST_MASK wildcard bit counts
45 * to and from IP bitmasks. */
46 ovs_be32 ofputil_wcbits_to_netmask(int wcbits);
47 int ofputil_netmask_to_wcbits(ovs_be32 netmask);
51 * A "protocol" is an OpenFlow version plus, for some OpenFlow versions,
52 * a bit extra about the flow match format in use.
54 * These are arranged from most portable to least portable, or alternatively
55 * from least powerful to most powerful. Protocols earlier on the list are
56 * more likely to be understood for the purpose of making requests, but
57 * protocol later on the list are more likely to accurately describe a flow
60 * On any given OpenFlow connection, a single protocol is in effect at any
61 * given time. These values use separate bits only because that makes it easy
62 * to test whether a particular protocol is within a given set of protocols and
63 * to implement set union and intersection.
65 enum ofputil_protocol {
66 /* OpenFlow 1.0 protocols.
68 * The "STD" protocols use the standard OpenFlow 1.0 flow format.
69 * The "NXM" protocols use the Nicira Extensible Match (NXM) flow format.
71 * The protocols with "TID" mean that the nx_flow_mod_table_id Nicira
72 * extension has been enabled. The other protocols have it disabled.
74 #define OFPUTIL_P_NONE 0
75 OFPUTIL_P_OF10_STD = 1 << 0,
76 OFPUTIL_P_OF10_STD_TID = 1 << 1,
77 OFPUTIL_P_OF10_NXM = 1 << 2,
78 OFPUTIL_P_OF10_NXM_TID = 1 << 3,
79 #define OFPUTIL_P_OF10_STD_ANY (OFPUTIL_P_OF10_STD | OFPUTIL_P_OF10_STD_TID)
80 #define OFPUTIL_P_OF10_NXM_ANY (OFPUTIL_P_OF10_NXM | OFPUTIL_P_OF10_NXM_TID)
82 /* OpenFlow 1.2+ protocols (only one variant each).
84 * These use the standard OpenFlow Extensible Match (OXM) flow format.
86 * OpenFlow 1.2+ always operates with an equivalent of the
87 * nx_flow_mod_table_id Nicira extension enabled, so there is no "TID"
89 OFPUTIL_P_OF12_OXM = 1 << 4,
90 OFPUTIL_P_OF13_OXM = 1 << 5,
91 #define OFPUTIL_P_ANY_OXM (OFPUTIL_P_OF12_OXM | OFPUTIL_P_OF13_OXM)
94 #define OFPUTIL_P_ANY ((1 << 6) - 1)
96 /* Protocols in which a specific table may be specified in flow_mods. */
97 #define OFPUTIL_P_TID (OFPUTIL_P_OF10_STD_TID | \
98 OFPUTIL_P_OF10_NXM_TID | \
102 /* Protocols to use for flow dumps, from most to least preferred. */
103 extern enum ofputil_protocol ofputil_flow_dump_protocols[];
104 extern size_t ofputil_n_flow_dump_protocols;
106 enum ofputil_protocol ofputil_protocol_from_ofp_version(enum ofp_version);
107 enum ofputil_protocol ofputil_protocols_from_ofp_version(enum ofp_version);
108 enum ofp_version ofputil_protocol_to_ofp_version(enum ofputil_protocol);
110 bool ofputil_protocol_is_valid(enum ofputil_protocol);
111 enum ofputil_protocol ofputil_protocol_set_tid(enum ofputil_protocol,
113 enum ofputil_protocol ofputil_protocol_to_base(enum ofputil_protocol);
114 enum ofputil_protocol ofputil_protocol_set_base(
115 enum ofputil_protocol cur, enum ofputil_protocol new_base);
117 const char *ofputil_protocol_to_string(enum ofputil_protocol);
118 char *ofputil_protocols_to_string(enum ofputil_protocol);
119 enum ofputil_protocol ofputil_protocols_from_string(const char *);
120 enum ofputil_protocol ofputil_usable_protocols(const struct match *);
122 void ofputil_format_version(struct ds *, enum ofp_version);
123 void ofputil_format_version_name(struct ds *, enum ofp_version);
125 /* A bitmap of version numbers
127 * Bit offsets correspond to ofp_version numbers which in turn correspond to
128 * wire-protocol numbers for Open Flow versions.. E.g. (1u << OFP11_VERSION)
129 * is the mask for Open Flow 1.1. If the bit for a version is set then it is
130 * allowed, otherwise it is disallowed. */
132 void ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap);
133 void ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap);
135 uint32_t ofputil_protocols_to_version_bitmap(enum ofputil_protocol);
136 enum ofputil_protocol ofputil_protocols_from_version_bitmap(uint32_t bitmap);
138 /* Bitmap of OpenFlow versions that Open vSwitch supports. */
139 #define OFPUTIL_SUPPORTED_VERSIONS \
140 ((1u << OFP10_VERSION) | (1u << OFP12_VERSION) | (1u << OFP13_VERSION))
142 /* Bitmap of OpenFlow versions to enable by default (a subset of
143 * OFPUTIL_SUPPORTED_VERSIONS). */
144 #define OFPUTIL_DEFAULT_VERSIONS (1u << OFP10_VERSION)
146 enum ofputil_protocol ofputil_protocols_from_string(const char *s);
148 const char *ofputil_version_to_string(enum ofp_version ofp_version);
149 uint32_t ofputil_versions_from_string(const char *s);
150 uint32_t ofputil_versions_from_strings(char ** const s, size_t count);
152 bool ofputil_decode_hello(const struct ofp_header *,
153 uint32_t *allowed_versions);
154 struct ofpbuf *ofputil_encode_hello(uint32_t version_bitmap);
156 struct ofpbuf *ofputil_encode_set_protocol(enum ofputil_protocol current,
157 enum ofputil_protocol want,
158 enum ofputil_protocol *next);
161 struct ofpbuf *ofputil_encode_nx_set_flow_format(enum nx_flow_format);
162 enum ofputil_protocol ofputil_nx_flow_format_to_protocol(enum nx_flow_format);
163 bool ofputil_nx_flow_format_is_valid(enum nx_flow_format);
164 const char *ofputil_nx_flow_format_to_string(enum nx_flow_format);
166 /* Work with ofp10_match. */
167 void ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *);
168 void ofputil_match_from_ofp10_match(const struct ofp10_match *,
170 void ofputil_normalize_match(struct match *);
171 void ofputil_normalize_match_quiet(struct match *);
172 void ofputil_match_to_ofp10_match(const struct match *, struct ofp10_match *);
174 /* Work with ofp11_match. */
175 enum ofperr ofputil_pull_ofp11_match(struct ofpbuf *, struct match *,
176 uint16_t *padded_match_len);
177 enum ofperr ofputil_match_from_ofp11_match(const struct ofp11_match *,
179 void ofputil_match_to_ofp11_match(const struct match *, struct ofp11_match *);
181 /* dl_type translation between OpenFlow and 'struct flow' format. */
182 ovs_be16 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type);
183 ovs_be16 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type);
186 bool ofputil_packet_in_format_is_valid(enum nx_packet_in_format);
187 int ofputil_packet_in_format_from_string(const char *);
188 const char *ofputil_packet_in_format_to_string(enum nx_packet_in_format);
189 struct ofpbuf *ofputil_make_set_packet_in_format(enum ofp_version,
190 enum nx_packet_in_format);
192 /* NXT_FLOW_MOD_TABLE_ID extension. */
193 struct ofpbuf *ofputil_make_flow_mod_table_id(bool flow_mod_table_id);
195 /* Protocol-independent flow_mod.
197 * The handling of cookies across multiple versions of OpenFlow is a bit
198 * confusing. A full description of Open vSwitch's cookie handling is
199 * in the DESIGN file. The following table shows the expected values of
200 * the cookie-related fields for the different flow_mod commands in
201 * OpenFlow 1.0 ("OF10") and NXM. "<used>" and "-" indicate a value
202 * that may be populated and an ignored field, respectively.
204 * cookie cookie_mask new_cookie
205 * ====== =========== ==========
206 * OF10 Add - 0 <used>
207 * OF10 Modify - 0 <used>
210 * NXM Modify <used> <used> <used>
211 * NXM Delete <used> <used> -
213 struct ofputil_flow_mod {
215 unsigned int priority;
216 ovs_be64 cookie; /* Cookie bits to match. */
217 ovs_be64 cookie_mask; /* 1-bit in each 'cookie' bit to match. */
218 ovs_be64 new_cookie; /* New cookie to install or -1. */
221 uint16_t idle_timeout;
222 uint16_t hard_timeout;
226 struct ofpact *ofpacts; /* Series of "struct ofpact"s. */
227 size_t ofpacts_len; /* Length of ofpacts, in bytes. */
230 enum ofperr ofputil_decode_flow_mod(struct ofputil_flow_mod *,
231 const struct ofp_header *,
232 enum ofputil_protocol,
233 struct ofpbuf *ofpacts);
234 struct ofpbuf *ofputil_encode_flow_mod(const struct ofputil_flow_mod *,
235 enum ofputil_protocol);
237 enum ofputil_protocol ofputil_flow_mod_usable_protocols(
238 const struct ofputil_flow_mod *fms, size_t n_fms);
240 /* Flow stats or aggregate stats request, independent of protocol. */
241 struct ofputil_flow_stats_request {
242 bool aggregate; /* Aggregate results? */
245 ovs_be64 cookie_mask;
250 enum ofperr ofputil_decode_flow_stats_request(
251 struct ofputil_flow_stats_request *, const struct ofp_header *);
252 struct ofpbuf *ofputil_encode_flow_stats_request(
253 const struct ofputil_flow_stats_request *, enum ofputil_protocol);
254 enum ofputil_protocol ofputil_flow_stats_request_usable_protocols(
255 const struct ofputil_flow_stats_request *);
257 /* Flow stats reply, independent of protocol. */
258 struct ofputil_flow_stats {
262 uint32_t duration_sec;
263 uint32_t duration_nsec;
265 uint16_t idle_timeout;
266 uint16_t hard_timeout;
267 int idle_age; /* Seconds since last packet, -1 if unknown. */
268 int hard_age; /* Seconds since last change, -1 if unknown. */
269 uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
270 uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
271 struct ofpact *ofpacts;
273 uint16_t flags; /* Added for OF 1.3 */
276 int ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *,
278 bool flow_age_extension,
279 struct ofpbuf *ofpacts);
280 void ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *,
281 struct list *replies);
283 /* Aggregate stats reply, independent of protocol. */
284 struct ofputil_aggregate_stats {
285 uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
286 uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
290 struct ofpbuf *ofputil_encode_aggregate_stats_reply(
291 const struct ofputil_aggregate_stats *stats,
292 const struct ofp_header *request);
293 enum ofperr ofputil_decode_aggregate_stats_reply(
294 struct ofputil_aggregate_stats *,
295 const struct ofp_header *reply);
297 /* Flow removed message, independent of protocol. */
298 struct ofputil_flow_removed {
302 uint8_t reason; /* One of OFPRR_*. */
303 uint8_t table_id; /* 255 if message didn't include table ID. */
304 uint32_t duration_sec;
305 uint32_t duration_nsec;
306 uint16_t idle_timeout;
307 uint16_t hard_timeout;
308 uint64_t packet_count; /* Packet count, UINT64_MAX if unknown. */
309 uint64_t byte_count; /* Byte count, UINT64_MAX if unknown. */
312 enum ofperr ofputil_decode_flow_removed(struct ofputil_flow_removed *,
313 const struct ofp_header *);
314 struct ofpbuf *ofputil_encode_flow_removed(const struct ofputil_flow_removed *,
315 enum ofputil_protocol);
317 /* Abstract packet-in message. */
318 struct ofputil_packet_in {
322 enum ofp_packet_in_reason reason; /* One of OFPR_*. */
323 uint16_t controller_id; /* Controller ID to send to. */
329 uint16_t total_len; /* Full length of frame. */
331 struct flow_metadata fmd; /* Metadata at creation time. */
334 enum ofperr ofputil_decode_packet_in(struct ofputil_packet_in *,
335 const struct ofp_header *);
336 struct ofpbuf *ofputil_encode_packet_in(const struct ofputil_packet_in *,
337 enum ofputil_protocol protocol,
338 enum nx_packet_in_format);
340 enum { OFPUTIL_PACKET_IN_REASON_BUFSIZE = INT_STRLEN(int) + 1 };
341 const char *ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason,
344 bool ofputil_packet_in_reason_from_string(const char *,
345 enum ofp_packet_in_reason *);
347 /* Abstract packet-out message.
349 * ofputil_decode_packet_out() will ensure that 'in_port' is a physical port
350 * (OFPP_MAX or less) or one of OFPP_LOCAL, OFPP_NONE, or OFPP_CONTROLLER. */
351 struct ofputil_packet_out {
352 const void *packet; /* Packet data, if buffer_id == UINT32_MAX. */
353 size_t packet_len; /* Length of packet data in bytes. */
354 uint32_t buffer_id; /* Buffer id or UINT32_MAX if no buffer. */
355 ofp_port_t in_port; /* Packet's input port. */
356 struct ofpact *ofpacts; /* Actions. */
357 size_t ofpacts_len; /* Size of ofpacts in bytes. */
360 enum ofperr ofputil_decode_packet_out(struct ofputil_packet_out *,
361 const struct ofp_header *,
362 struct ofpbuf *ofpacts);
363 struct ofpbuf *ofputil_encode_packet_out(const struct ofputil_packet_out *,
364 enum ofputil_protocol protocol);
366 enum ofputil_port_config {
367 /* OpenFlow 1.0 and 1.1 share these values for these port config bits. */
368 OFPUTIL_PC_PORT_DOWN = 1 << 0, /* Port is administratively down. */
369 OFPUTIL_PC_NO_RECV = 1 << 2, /* Drop all packets received by port. */
370 OFPUTIL_PC_NO_FWD = 1 << 5, /* Drop packets forwarded to port. */
371 OFPUTIL_PC_NO_PACKET_IN = 1 << 6, /* No send packet-in msgs for port. */
372 /* OpenFlow 1.0 only. */
373 OFPUTIL_PC_NO_STP = 1 << 1, /* No 802.1D spanning tree for port. */
374 OFPUTIL_PC_NO_RECV_STP = 1 << 3, /* Drop received 802.1D STP packets. */
375 OFPUTIL_PC_NO_FLOOD = 1 << 4, /* Do not include port when flooding. */
376 /* There are no OpenFlow 1.1-only bits. */
379 enum ofputil_port_state {
380 /* OpenFlow 1.0 and 1.1 share this values for these port state bits. */
381 OFPUTIL_PS_LINK_DOWN = 1 << 0, /* No physical link present. */
382 /* OpenFlow 1.1 only. */
383 OFPUTIL_PS_BLOCKED = 1 << 1, /* Port is blocked */
384 OFPUTIL_PS_LIVE = 1 << 2, /* Live for Fast Failover Group. */
385 /* OpenFlow 1.0 only. */
386 OFPUTIL_PS_STP_LISTEN = 0 << 8, /* Not learning or relaying frames. */
387 OFPUTIL_PS_STP_LEARN = 1 << 8, /* Learning but not relaying frames. */
388 OFPUTIL_PS_STP_FORWARD = 2 << 8, /* Learning and relaying frames. */
389 OFPUTIL_PS_STP_BLOCK = 3 << 8, /* Not part of spanning tree. */
390 OFPUTIL_PS_STP_MASK = 3 << 8 /* Bit mask for OFPPS10_STP_* values. */
393 /* Abstract ofp10_phy_port or ofp11_port. */
394 struct ofputil_phy_port {
396 uint8_t hw_addr[OFP_ETH_ALEN];
397 char name[OFP_MAX_PORT_NAME_LEN];
398 enum ofputil_port_config config;
399 enum ofputil_port_state state;
401 /* NETDEV_F_* feature bitmasks. */
402 enum netdev_features curr; /* Current features. */
403 enum netdev_features advertised; /* Features advertised by the port. */
404 enum netdev_features supported; /* Features supported by the port. */
405 enum netdev_features peer; /* Features advertised by peer. */
408 uint32_t curr_speed; /* Current speed, in kbps. */
409 uint32_t max_speed; /* Maximum supported speed, in kbps. */
412 enum ofputil_capabilities {
413 /* OpenFlow 1.0, 1.1, 1.2, and 1.3 share these capability values. */
414 OFPUTIL_C_FLOW_STATS = 1 << 0, /* Flow statistics. */
415 OFPUTIL_C_TABLE_STATS = 1 << 1, /* Table statistics. */
416 OFPUTIL_C_PORT_STATS = 1 << 2, /* Port statistics. */
417 OFPUTIL_C_IP_REASM = 1 << 5, /* Can reassemble IP fragments. */
418 OFPUTIL_C_QUEUE_STATS = 1 << 6, /* Queue statistics. */
420 /* OpenFlow 1.0 and 1.1 share this capability. */
421 OFPUTIL_C_ARP_MATCH_IP = 1 << 7, /* Match IP addresses in ARP pkts. */
423 /* OpenFlow 1.0 only. */
424 OFPUTIL_C_STP = 1 << 3, /* 802.1d spanning tree. */
426 /* OpenFlow 1.1, 1.2, and 1.3 share this capability. */
427 OFPUTIL_C_GROUP_STATS = 1 << 4, /* Group statistics. */
429 /* OpenFlow 1.2 and 1.3 share this capability */
430 OFPUTIL_C_PORT_BLOCKED = 1 << 8, /* Switch will block looping ports */
433 enum ofputil_action_bitmap {
434 OFPUTIL_A_OUTPUT = 1 << 0,
435 OFPUTIL_A_SET_VLAN_VID = 1 << 1,
436 OFPUTIL_A_SET_VLAN_PCP = 1 << 2,
437 OFPUTIL_A_STRIP_VLAN = 1 << 3,
438 OFPUTIL_A_SET_DL_SRC = 1 << 4,
439 OFPUTIL_A_SET_DL_DST = 1 << 5,
440 OFPUTIL_A_SET_NW_SRC = 1 << 6,
441 OFPUTIL_A_SET_NW_DST = 1 << 7,
442 OFPUTIL_A_SET_NW_ECN = 1 << 8,
443 OFPUTIL_A_SET_NW_TOS = 1 << 9,
444 OFPUTIL_A_SET_TP_SRC = 1 << 10,
445 OFPUTIL_A_SET_TP_DST = 1 << 11,
446 OFPUTIL_A_ENQUEUE = 1 << 12,
447 OFPUTIL_A_COPY_TTL_OUT = 1 << 13,
448 OFPUTIL_A_COPY_TTL_IN = 1 << 14,
449 OFPUTIL_A_SET_MPLS_LABEL = 1 << 15,
450 OFPUTIL_A_SET_MPLS_TC = 1 << 16,
451 OFPUTIL_A_SET_MPLS_TTL = 1 << 17,
452 OFPUTIL_A_DEC_MPLS_TTL = 1 << 18,
453 OFPUTIL_A_PUSH_VLAN = 1 << 19,
454 OFPUTIL_A_POP_VLAN = 1 << 20,
455 OFPUTIL_A_PUSH_MPLS = 1 << 21,
456 OFPUTIL_A_POP_MPLS = 1 << 22,
457 OFPUTIL_A_SET_QUEUE = 1 << 23,
458 OFPUTIL_A_GROUP = 1 << 24,
459 OFPUTIL_A_SET_NW_TTL = 1 << 25,
460 OFPUTIL_A_DEC_NW_TTL = 1 << 26,
461 OFPUTIL_A_SET_FIELD = 1 << 27,
464 /* Abstract ofp_switch_features. */
465 struct ofputil_switch_features {
466 uint64_t datapath_id; /* Datapath unique ID. */
467 uint32_t n_buffers; /* Max packets buffered at once. */
468 uint8_t n_tables; /* Number of tables supported by datapath. */
469 uint8_t auxiliary_id; /* Identify auxiliary connections */
470 enum ofputil_capabilities capabilities;
471 enum ofputil_action_bitmap actions;
474 enum ofperr ofputil_decode_switch_features(const struct ofp_header *,
475 struct ofputil_switch_features *,
478 struct ofpbuf *ofputil_encode_switch_features(
479 const struct ofputil_switch_features *, enum ofputil_protocol,
481 void ofputil_put_switch_features_port(const struct ofputil_phy_port *,
483 bool ofputil_switch_features_ports_trunc(struct ofpbuf *b);
485 /* phy_port helper functions. */
486 int ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *,
487 struct ofputil_phy_port *);
488 size_t ofputil_count_phy_ports(uint8_t ofp_version, struct ofpbuf *);
490 /* Abstract ofp_port_status. */
491 struct ofputil_port_status {
492 enum ofp_port_reason reason;
493 struct ofputil_phy_port desc;
496 enum ofperr ofputil_decode_port_status(const struct ofp_header *,
497 struct ofputil_port_status *);
498 struct ofpbuf *ofputil_encode_port_status(const struct ofputil_port_status *,
499 enum ofputil_protocol);
501 /* Abstract ofp_port_mod. */
502 struct ofputil_port_mod {
504 uint8_t hw_addr[OFP_ETH_ALEN];
505 enum ofputil_port_config config;
506 enum ofputil_port_config mask;
507 enum netdev_features advertise;
510 enum ofperr ofputil_decode_port_mod(const struct ofp_header *,
511 struct ofputil_port_mod *);
512 struct ofpbuf *ofputil_encode_port_mod(const struct ofputil_port_mod *,
513 enum ofputil_protocol);
515 /* Abstract ofp_role_request and reply. */
516 struct ofputil_role_request {
517 enum ofp12_controller_role role;
518 bool have_generation_id;
519 uint64_t generation_id;
522 enum ofperr ofputil_decode_role_message(const struct ofp_header *,
523 struct ofputil_role_request *);
524 struct ofpbuf *ofputil_encode_role_reply(const struct ofp_header *,
525 const struct ofputil_role_request *);
527 /* Abstract table stats.
529 * For now we use ofp12_table_stats as a superset of the other protocol
530 * versions' table stats. */
532 struct ofpbuf *ofputil_encode_table_stats_reply(
533 const struct ofp12_table_stats[], int n,
534 const struct ofp_header *request);
536 /* Abstract nx_flow_monitor_request. */
537 struct ofputil_flow_monitor_request {
539 enum nx_flow_monitor_flags flags;
545 int ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *,
547 void ofputil_append_flow_monitor_request(
548 const struct ofputil_flow_monitor_request *, struct ofpbuf *msg);
550 /* Abstract nx_flow_update. */
551 struct ofputil_flow_update {
552 enum nx_flow_update_event event;
554 /* Used only for NXFME_ADDED, NXFME_DELETED, NXFME_MODIFIED. */
555 enum ofp_flow_removed_reason reason;
556 uint16_t idle_timeout;
557 uint16_t hard_timeout;
562 struct ofpact *ofpacts;
565 /* Used only for NXFME_ABBREV. */
569 int ofputil_decode_flow_update(struct ofputil_flow_update *,
570 struct ofpbuf *msg, struct ofpbuf *ofpacts);
571 void ofputil_start_flow_update(struct list *replies);
572 void ofputil_append_flow_update(const struct ofputil_flow_update *,
573 struct list *replies);
575 /* Abstract nx_flow_monitor_cancel. */
576 uint32_t ofputil_decode_flow_monitor_cancel(const struct ofp_header *);
577 struct ofpbuf *ofputil_encode_flow_monitor_cancel(uint32_t id);
579 /* Encoding OpenFlow stats messages. */
580 void ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version,
581 const struct ofputil_phy_port *pp,
582 struct list *replies);
584 /* Encoding simple OpenFlow messages. */
585 struct ofpbuf *make_echo_request(enum ofp_version);
586 struct ofpbuf *make_echo_reply(const struct ofp_header *rq);
588 struct ofpbuf *ofputil_encode_barrier_request(enum ofp_version);
590 const char *ofputil_frag_handling_to_string(enum ofp_config_flags);
591 bool ofputil_frag_handling_from_string(const char *, enum ofp_config_flags *);
596 /* The type of an action.
598 * For each implemented OFPAT10_* and NXAST_* action type, there is a
599 * corresponding constant prefixed with OFPUTIL_, e.g.:
601 * OFPUTIL_OFPAT10_OUTPUT
602 * OFPUTIL_OFPAT10_SET_VLAN_VID
603 * OFPUTIL_OFPAT10_SET_VLAN_PCP
604 * OFPUTIL_OFPAT10_STRIP_VLAN
605 * OFPUTIL_OFPAT10_SET_DL_SRC
606 * OFPUTIL_OFPAT10_SET_DL_DST
607 * OFPUTIL_OFPAT10_SET_NW_SRC
608 * OFPUTIL_OFPAT10_SET_NW_DST
609 * OFPUTIL_OFPAT10_SET_NW_TOS
610 * OFPUTIL_OFPAT10_SET_TP_SRC
611 * OFPUTIL_OFPAT10_SET_TP_DST
612 * OFPUTIL_OFPAT10_ENQUEUE
613 * OFPUTIL_NXAST_RESUBMIT
614 * OFPUTIL_NXAST_SET_TUNNEL
615 * OFPUTIL_NXAST_SET_METADATA
616 * OFPUTIL_NXAST_SET_QUEUE
617 * OFPUTIL_NXAST_POP_QUEUE
618 * OFPUTIL_NXAST_REG_MOVE
619 * OFPUTIL_NXAST_REG_LOAD
621 * OFPUTIL_NXAST_SET_TUNNEL64
622 * OFPUTIL_NXAST_MULTIPATH
623 * OFPUTIL_NXAST_BUNDLE
624 * OFPUTIL_NXAST_BUNDLE_LOAD
625 * OFPUTIL_NXAST_RESUBMIT_TABLE
626 * OFPUTIL_NXAST_OUTPUT_REG
627 * OFPUTIL_NXAST_LEARN
628 * OFPUTIL_NXAST_DEC_TTL
629 * OFPUTIL_NXAST_FIN_TIMEOUT
631 * (The above list helps developers who want to "grep" for these definitions.)
633 enum OVS_PACKED_ENUM ofputil_action_code {
634 OFPUTIL_ACTION_INVALID,
635 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) OFPUTIL_##ENUM,
636 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
637 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) OFPUTIL_##ENUM,
638 #include "ofp-util.def"
641 /* The number of values of "enum ofputil_action_code". */
643 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) + 1
644 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
645 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) + 1
646 OFPUTIL_N_ACTIONS = 1
647 #include "ofp-util.def"
650 int ofputil_action_code_from_name(const char *);
652 void *ofputil_put_action(enum ofputil_action_code, struct ofpbuf *buf);
654 /* For each OpenFlow action <ENUM> that has a corresponding action structure
655 * struct <STRUCT>, this defines two functions:
657 * void ofputil_init_<ENUM>(struct <STRUCT> *action);
659 * Initializes the parts of 'action' that identify it as having type <ENUM>
660 * and length 'sizeof *action' and zeros the rest. For actions that have
661 * variable length, the length used and cleared is that of struct <STRUCT>.
663 * struct <STRUCT> *ofputil_put_<ENUM>(struct ofpbuf *buf);
665 * Appends a new 'action', of length 'sizeof(struct <STRUCT>)', to 'buf',
666 * initializes it with ofputil_init_<ENUM>(), and returns it.
668 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
669 void ofputil_init_##ENUM(struct STRUCT *); \
670 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
671 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
672 void ofputil_init_##ENUM(struct STRUCT *); \
673 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
674 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
675 void ofputil_init_##ENUM(struct STRUCT *); \
676 struct STRUCT *ofputil_put_##ENUM(struct ofpbuf *);
677 #include "ofp-util.def"
679 #define OFP_ACTION_ALIGN 8 /* Alignment of ofp_actions. */
681 bool action_outputs_to_port(const union ofp_action *, ovs_be16 port);
683 enum ofperr ofputil_pull_actions(struct ofpbuf *, unsigned int actions_len,
684 union ofp_action **, size_t *);
686 bool ofputil_actions_equal(const union ofp_action *a, size_t n_a,
687 const union ofp_action *b, size_t n_b);
688 union ofp_action *ofputil_actions_clone(const union ofp_action *, size_t n);
690 /* Handy utility for parsing flows and actions. */
691 bool ofputil_parse_key_value(char **stringp, char **keyp, char **valuep);
693 struct ofputil_port_stats {
695 struct netdev_stats stats;
696 uint32_t duration_sec; /* UINT32_MAX if unknown. */
697 uint32_t duration_nsec;
700 struct ofpbuf *ofputil_encode_dump_ports_request(enum ofp_version ofp_version,
702 void ofputil_append_port_stat(struct list *replies,
703 const struct ofputil_port_stats *ops);
704 size_t ofputil_count_port_stats(const struct ofp_header *);
705 int ofputil_decode_port_stats(struct ofputil_port_stats *, struct ofpbuf *msg);
706 enum ofperr ofputil_decode_port_stats_request(const struct ofp_header *request,
707 ofp_port_t *ofp10_port);
709 struct ofputil_queue_stats_request {
710 ofp_port_t port_no; /* OFPP_ANY means "all ports". */
715 ofputil_decode_queue_stats_request(const struct ofp_header *request,
716 struct ofputil_queue_stats_request *oqsr);
718 ofputil_encode_queue_stats_request(enum ofp_version ofp_version,
719 const struct ofputil_queue_stats_request *oqsr);
721 struct ofputil_queue_stats {
724 struct netdev_queue_stats stats;
727 size_t ofputil_count_queue_stats(const struct ofp_header *);
728 int ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg);
729 void ofputil_append_queue_stat(struct list *replies,
730 const struct ofputil_queue_stats *oqs);
732 #endif /* ofp-util.h */