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.
18 #include "ofp-actions.h"
21 #include "byte-order.h"
23 #include "dynamic-string.h"
25 #include "meta-flow.h"
26 #include "multipath.h"
32 VLOG_DEFINE_THIS_MODULE(ofp_actions
);
34 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
36 /* Converting OpenFlow 1.0 to ofpacts. */
39 output_from_openflow10(const struct ofp10_action_output
*oao
,
42 struct ofpact_output
*output
;
44 output
= ofpact_put_OUTPUT(out
);
45 output
->port
= ntohs(oao
->port
);
46 output
->max_len
= ntohs(oao
->max_len
);
48 return ofputil_check_output_port(output
->port
, OFPP_MAX
);
52 enqueue_from_openflow10(const struct ofp_action_enqueue
*oae
,
55 struct ofpact_enqueue
*enqueue
;
57 enqueue
= ofpact_put_ENQUEUE(out
);
58 enqueue
->port
= ntohs(oae
->port
);
59 enqueue
->queue
= ntohl(oae
->queue_id
);
60 if (enqueue
->port
>= OFPP_MAX
&& enqueue
->port
!= OFPP_IN_PORT
61 && enqueue
->port
!= OFPP_LOCAL
) {
62 return OFPERR_OFPBAC_BAD_OUT_PORT
;
68 resubmit_from_openflow(const struct nx_action_resubmit
*nar
,
71 struct ofpact_resubmit
*resubmit
;
73 resubmit
= ofpact_put_RESUBMIT(out
);
74 resubmit
->ofpact
.compat
= OFPUTIL_NXAST_RESUBMIT
;
75 resubmit
->in_port
= ntohs(nar
->in_port
);
76 resubmit
->table_id
= 0xff;
80 resubmit_table_from_openflow(const struct nx_action_resubmit
*nar
,
83 struct ofpact_resubmit
*resubmit
;
85 if (nar
->pad
[0] || nar
->pad
[1] || nar
->pad
[2]) {
86 return OFPERR_OFPBAC_BAD_ARGUMENT
;
89 resubmit
= ofpact_put_RESUBMIT(out
);
90 resubmit
->ofpact
.compat
= OFPUTIL_NXAST_RESUBMIT_TABLE
;
91 resubmit
->in_port
= ntohs(nar
->in_port
);
92 resubmit
->table_id
= nar
->table
;
97 output_reg_from_openflow(const struct nx_action_output_reg
*naor
,
100 struct ofpact_output_reg
*output_reg
;
102 if (!is_all_zeros(naor
->zero
, sizeof naor
->zero
)) {
103 return OFPERR_OFPBAC_BAD_ARGUMENT
;
106 output_reg
= ofpact_put_OUTPUT_REG(out
);
107 output_reg
->src
.field
= mf_from_nxm_header(ntohl(naor
->src
));
108 output_reg
->src
.ofs
= nxm_decode_ofs(naor
->ofs_nbits
);
109 output_reg
->src
.n_bits
= nxm_decode_n_bits(naor
->ofs_nbits
);
110 output_reg
->max_len
= ntohs(naor
->max_len
);
112 return mf_check_src(&output_reg
->src
, NULL
);
116 fin_timeout_from_openflow(const struct nx_action_fin_timeout
*naft
,
119 struct ofpact_fin_timeout
*oft
;
121 oft
= ofpact_put_FIN_TIMEOUT(out
);
122 oft
->fin_idle_timeout
= ntohs(naft
->fin_idle_timeout
);
123 oft
->fin_hard_timeout
= ntohs(naft
->fin_hard_timeout
);
127 controller_from_openflow(const struct nx_action_controller
*nac
,
130 struct ofpact_controller
*oc
;
132 oc
= ofpact_put_CONTROLLER(out
);
133 oc
->max_len
= ntohs(nac
->max_len
);
134 oc
->controller_id
= ntohs(nac
->controller_id
);
135 oc
->reason
= nac
->reason
;
139 note_from_openflow(const struct nx_action_note
*nan
, struct ofpbuf
*out
)
141 struct ofpact_note
*note
;
144 length
= ntohs(nan
->len
) - offsetof(struct nx_action_note
, note
);
145 note
= ofpact_put(out
, OFPACT_NOTE
,
146 offsetof(struct ofpact_note
, data
) + length
);
147 note
->length
= length
;
148 memcpy(note
->data
, nan
->note
, length
);
152 dec_ttl_from_openflow(struct ofpbuf
*out
)
155 struct ofpact_cnt_ids
*ids
;
156 enum ofperr error
= 0;
158 ids
= ofpact_put_DEC_TTL(out
);
159 ids
->ofpact
.compat
= OFPUTIL_NXAST_DEC_TTL
;
160 ids
->n_controllers
= 1;
161 ofpbuf_put(out
, &id
, sizeof id
);
163 ofpact_update_len(out
, &ids
->ofpact
);
168 dec_ttl_cnt_ids_from_openflow(const struct nx_action_cnt_ids
*nac_ids
,
171 struct ofpact_cnt_ids
*ids
;
175 ids
= ofpact_put_DEC_TTL(out
);
176 ids
->ofpact
.compat
= OFPUTIL_NXAST_DEC_TTL_CNT_IDS
;
177 ids
->n_controllers
= ntohs(nac_ids
->n_controllers
);
178 ids_size
= ntohs(nac_ids
->len
) - sizeof *nac_ids
;
180 if (!is_all_zeros(nac_ids
->zeros
, sizeof nac_ids
->zeros
)) {
181 return OFPERR_NXBRC_MUST_BE_ZERO
;
184 if (ids_size
< ids
->n_controllers
* sizeof(ovs_be16
)) {
185 VLOG_WARN_RL(&rl
, "Nicira action dec_ttl_cnt_ids only has %zu bytes "
186 "allocated for controller ids. %zu bytes are required for "
187 "%"PRIu16
" controllers.", ids_size
,
188 ids
->n_controllers
* sizeof(ovs_be16
), ids
->n_controllers
);
189 return OFPERR_OFPBAC_BAD_LEN
;
192 for (i
= 0; i
< ids
->n_controllers
; i
++) {
193 uint16_t id
= ntohs(((ovs_be16
*)(nac_ids
+ 1))[i
]);
194 ofpbuf_put(out
, &id
, sizeof id
);
198 ofpact_update_len(out
, &ids
->ofpact
);
204 decode_nxast_action(const union ofp_action
*a
, enum ofputil_action_code
*code
)
206 const struct nx_action_header
*nah
= (const struct nx_action_header
*) a
;
207 uint16_t len
= ntohs(a
->header
.len
);
209 if (len
< sizeof(struct nx_action_header
)) {
210 return OFPERR_OFPBAC_BAD_LEN
;
211 } else if (a
->vendor
.vendor
!= CONSTANT_HTONL(NX_VENDOR_ID
)) {
212 return OFPERR_OFPBAC_BAD_VENDOR
;
215 switch (nah
->subtype
) {
216 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
217 case CONSTANT_HTONS(ENUM): \
219 ? len >= sizeof(struct STRUCT) \
220 : len == sizeof(struct STRUCT)) { \
221 *code = OFPUTIL_##ENUM; \
224 return OFPERR_OFPBAC_BAD_LEN; \
227 #include "ofp-util.def"
229 case CONSTANT_HTONS(NXAST_SNAT__OBSOLETE
):
230 case CONSTANT_HTONS(NXAST_DROP_SPOOFED_ARP__OBSOLETE
):
232 return OFPERR_OFPBAC_BAD_TYPE
;
236 /* Parses 'a' to determine its type. On success stores the correct type into
237 * '*code' and returns 0. On failure returns an OFPERR_* error code and
238 * '*code' is indeterminate.
240 * The caller must have already verified that 'a''s length is potentially
241 * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
242 * ofp_action) and no longer than the amount of space allocated to 'a').
244 * This function verifies that 'a''s length is correct for the type of action
245 * that it represents. */
247 decode_openflow10_action(const union ofp_action
*a
,
248 enum ofputil_action_code
*code
)
251 case CONSTANT_HTONS(OFPAT10_VENDOR
):
252 return decode_nxast_action(a
, code
);
254 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
255 case CONSTANT_HTONS(ENUM): \
256 if (a->header.len == htons(sizeof(struct STRUCT))) { \
257 *code = OFPUTIL_##ENUM; \
260 return OFPERR_OFPBAC_BAD_LEN; \
263 #include "ofp-util.def"
266 return OFPERR_OFPBAC_BAD_TYPE
;
271 ofpact_from_nxast(const union ofp_action
*a
, enum ofputil_action_code code
,
274 const struct nx_action_resubmit
*nar
;
275 const struct nx_action_set_tunnel
*nast
;
276 const struct nx_action_set_queue
*nasq
;
277 const struct nx_action_note
*nan
;
278 const struct nx_action_set_tunnel64
*nast64
;
279 struct ofpact_tunnel
*tunnel
;
280 enum ofperr error
= 0;
283 case OFPUTIL_ACTION_INVALID
:
284 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
285 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
286 #include "ofp-util.def"
289 case OFPUTIL_NXAST_RESUBMIT
:
290 resubmit_from_openflow((const struct nx_action_resubmit
*) a
, out
);
293 case OFPUTIL_NXAST_SET_TUNNEL
:
294 nast
= (const struct nx_action_set_tunnel
*) a
;
295 tunnel
= ofpact_put_SET_TUNNEL(out
);
296 tunnel
->ofpact
.compat
= code
;
297 tunnel
->tun_id
= ntohl(nast
->tun_id
);
300 case OFPUTIL_NXAST_SET_QUEUE
:
301 nasq
= (const struct nx_action_set_queue
*) a
;
302 ofpact_put_SET_QUEUE(out
)->queue_id
= ntohl(nasq
->queue_id
);
305 case OFPUTIL_NXAST_POP_QUEUE
:
306 ofpact_put_POP_QUEUE(out
);
309 case OFPUTIL_NXAST_REG_MOVE
:
310 error
= nxm_reg_move_from_openflow(
311 (const struct nx_action_reg_move
*) a
, out
);
314 case OFPUTIL_NXAST_REG_LOAD
:
315 error
= nxm_reg_load_from_openflow(
316 (const struct nx_action_reg_load
*) a
, out
);
319 case OFPUTIL_NXAST_NOTE
:
320 nan
= (const struct nx_action_note
*) a
;
321 note_from_openflow(nan
, out
);
324 case OFPUTIL_NXAST_SET_TUNNEL64
:
325 nast64
= (const struct nx_action_set_tunnel64
*) a
;
326 tunnel
= ofpact_put_SET_TUNNEL(out
);
327 tunnel
->ofpact
.compat
= code
;
328 tunnel
->tun_id
= ntohll(nast64
->tun_id
);
331 case OFPUTIL_NXAST_MULTIPATH
:
332 error
= multipath_from_openflow((const struct nx_action_multipath
*) a
,
333 ofpact_put_MULTIPATH(out
));
336 case OFPUTIL_NXAST_AUTOPATH__DEPRECATED
:
337 error
= autopath_from_openflow((const struct nx_action_autopath
*) a
,
338 ofpact_put_AUTOPATH(out
));
341 case OFPUTIL_NXAST_BUNDLE
:
342 case OFPUTIL_NXAST_BUNDLE_LOAD
:
343 error
= bundle_from_openflow((const struct nx_action_bundle
*) a
, out
);
346 case OFPUTIL_NXAST_OUTPUT_REG
:
347 error
= output_reg_from_openflow(
348 (const struct nx_action_output_reg
*) a
, out
);
351 case OFPUTIL_NXAST_RESUBMIT_TABLE
:
352 nar
= (const struct nx_action_resubmit
*) a
;
353 error
= resubmit_table_from_openflow(nar
, out
);
356 case OFPUTIL_NXAST_LEARN
:
357 error
= learn_from_openflow((const struct nx_action_learn
*) a
, out
);
360 case OFPUTIL_NXAST_EXIT
:
361 ofpact_put_EXIT(out
);
364 case OFPUTIL_NXAST_DEC_TTL
:
365 error
= dec_ttl_from_openflow(out
);
368 case OFPUTIL_NXAST_DEC_TTL_CNT_IDS
:
369 error
= dec_ttl_cnt_ids_from_openflow(
370 (const struct nx_action_cnt_ids
*) a
, out
);
373 case OFPUTIL_NXAST_FIN_TIMEOUT
:
374 fin_timeout_from_openflow(
375 (const struct nx_action_fin_timeout
*) a
, out
);
378 case OFPUTIL_NXAST_CONTROLLER
:
379 controller_from_openflow((const struct nx_action_controller
*) a
, out
);
387 ofpact_from_openflow10(const union ofp_action
*a
, struct ofpbuf
*out
)
389 enum ofputil_action_code code
;
392 error
= decode_openflow10_action(a
, &code
);
398 case OFPUTIL_ACTION_INVALID
:
399 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
400 #include "ofp-util.def"
403 case OFPUTIL_OFPAT10_OUTPUT
:
404 return output_from_openflow10(&a
->output10
, out
);
406 case OFPUTIL_OFPAT10_SET_VLAN_VID
:
407 if (a
->vlan_vid
.vlan_vid
& ~htons(0xfff)) {
408 return OFPERR_OFPBAC_BAD_ARGUMENT
;
410 ofpact_put_SET_VLAN_VID(out
)->vlan_vid
= ntohs(a
->vlan_vid
.vlan_vid
);
413 case OFPUTIL_OFPAT10_SET_VLAN_PCP
:
414 if (a
->vlan_pcp
.vlan_pcp
& ~7) {
415 return OFPERR_OFPBAC_BAD_ARGUMENT
;
417 ofpact_put_SET_VLAN_PCP(out
)->vlan_pcp
= a
->vlan_pcp
.vlan_pcp
;
420 case OFPUTIL_OFPAT10_STRIP_VLAN
:
421 ofpact_put_STRIP_VLAN(out
);
424 case OFPUTIL_OFPAT10_SET_DL_SRC
:
425 memcpy(ofpact_put_SET_ETH_SRC(out
)->mac
,
426 ((const struct ofp_action_dl_addr
*) a
)->dl_addr
, ETH_ADDR_LEN
);
429 case OFPUTIL_OFPAT10_SET_DL_DST
:
430 memcpy(ofpact_put_SET_ETH_DST(out
)->mac
,
431 ((const struct ofp_action_dl_addr
*) a
)->dl_addr
, ETH_ADDR_LEN
);
434 case OFPUTIL_OFPAT10_SET_NW_SRC
:
435 ofpact_put_SET_IPV4_SRC(out
)->ipv4
= a
->nw_addr
.nw_addr
;
438 case OFPUTIL_OFPAT10_SET_NW_DST
:
439 ofpact_put_SET_IPV4_DST(out
)->ipv4
= a
->nw_addr
.nw_addr
;
442 case OFPUTIL_OFPAT10_SET_NW_TOS
:
443 if (a
->nw_tos
.nw_tos
& ~IP_DSCP_MASK
) {
444 return OFPERR_OFPBAC_BAD_ARGUMENT
;
446 ofpact_put_SET_IPV4_DSCP(out
)->dscp
= a
->nw_tos
.nw_tos
;
449 case OFPUTIL_OFPAT10_SET_TP_SRC
:
450 ofpact_put_SET_L4_SRC_PORT(out
)->port
= ntohs(a
->tp_port
.tp_port
);
453 case OFPUTIL_OFPAT10_SET_TP_DST
:
454 ofpact_put_SET_L4_DST_PORT(out
)->port
= ntohs(a
->tp_port
.tp_port
);
458 case OFPUTIL_OFPAT10_ENQUEUE
:
459 error
= enqueue_from_openflow10((const struct ofp_action_enqueue
*) a
,
463 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
464 #include "ofp-util.def"
465 return ofpact_from_nxast(a
, code
, out
);
471 static inline union ofp_action
*
472 action_next(const union ofp_action
*a
)
474 return ((union ofp_action
*) (void *)
475 ((uint8_t *) a
+ ntohs(a
->header
.len
)));
479 action_is_valid(const union ofp_action
*a
, size_t n_actions
)
481 uint16_t len
= ntohs(a
->header
.len
);
482 return (!(len
% OFP_ACTION_ALIGN
)
484 && len
/ sizeof *a
<= n_actions
);
487 /* This macro is careful to check for actions with bad lengths. */
488 #define ACTION_FOR_EACH(ITER, LEFT, ACTIONS, N_ACTIONS) \
489 for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \
490 (LEFT) > 0 && action_is_valid(ITER, LEFT); \
491 ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \
492 (ITER) = action_next(ITER)))
495 log_bad_action(const union ofp_action
*actions
, size_t n_actions
, size_t ofs
,
498 if (!VLOG_DROP_WARN(&rl
)) {
502 ds_put_hex_dump(&s
, actions
, n_actions
* sizeof *actions
, 0, false);
503 VLOG_WARN("bad action at offset %#zx (%s):\n%s",
504 ofs
* sizeof *actions
, ofperr_get_name(error
), ds_cstr(&s
));
510 ofpacts_from_openflow(const union ofp_action
*in
, size_t n_in
,
512 enum ofperr (*ofpact_from_openflow
)(
513 const union ofp_action
*a
, struct ofpbuf
*out
))
515 const union ofp_action
*a
;
518 ACTION_FOR_EACH (a
, left
, in
, n_in
) {
519 enum ofperr error
= ofpact_from_openflow(a
, out
);
521 log_bad_action(in
, n_in
, a
- in
, error
);
526 enum ofperr error
= OFPERR_OFPBAC_BAD_LEN
;
527 log_bad_action(in
, n_in
, n_in
- left
, error
);
536 ofpacts_from_openflow10(const union ofp_action
*in
, size_t n_in
,
539 return ofpacts_from_openflow(in
, n_in
, out
, ofpact_from_openflow10
);
543 ofpacts_pull_actions(struct ofpbuf
*openflow
, unsigned int actions_len
,
544 struct ofpbuf
*ofpacts
,
545 enum ofperr (*translate
)(const union ofp_action
*actions
,
547 struct ofpbuf
*ofpacts
))
549 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
550 const union ofp_action
*actions
;
553 ofpbuf_clear(ofpacts
);
555 if (actions_len
% OFP_ACTION_ALIGN
!= 0) {
556 VLOG_WARN_RL(&rl
, "OpenFlow message actions length %u is not a "
557 "multiple of %d", actions_len
, OFP_ACTION_ALIGN
);
558 return OFPERR_OFPBRC_BAD_LEN
;
561 actions
= ofpbuf_try_pull(openflow
, actions_len
);
562 if (actions
== NULL
) {
563 VLOG_WARN_RL(&rl
, "OpenFlow message actions length %u exceeds "
564 "remaining message length (%zu)",
565 actions_len
, openflow
->size
);
566 return OFPERR_OFPBRC_BAD_LEN
;
569 error
= translate(actions
, actions_len
/ OFP_ACTION_ALIGN
, ofpacts
);
571 ofpbuf_clear(ofpacts
);
576 /* Attempts to convert 'actions_len' bytes of OpenFlow 1.0 actions from the
577 * front of 'openflow' into ofpacts. On success, replaces any existing content
578 * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
579 * Returns 0 if successful, otherwise an OpenFlow error.
581 * The parsed actions are valid generically, but they may not be valid in a
582 * specific context. For example, port numbers up to OFPP_MAX are valid
583 * generically, but specific datapaths may only support port numbers in a
584 * smaller range. Use ofpacts_check() to additional check whether actions are
585 * valid in a specific context. */
587 ofpacts_pull_openflow10(struct ofpbuf
*openflow
, unsigned int actions_len
,
588 struct ofpbuf
*ofpacts
)
590 return ofpacts_pull_actions(openflow
, actions_len
, ofpacts
,
591 ofpacts_from_openflow10
);
594 /* OpenFlow 1.1 actions. */
596 /* Parses 'a' to determine its type. On success stores the correct type into
597 * '*code' and returns 0. On failure returns an OFPERR_* error code and
598 * '*code' is indeterminate.
600 * The caller must have already verified that 'a''s length is potentially
601 * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
602 * ofp_action) and no longer than the amount of space allocated to 'a').
604 * This function verifies that 'a''s length is correct for the type of action
605 * that it represents. */
607 decode_openflow11_action(const union ofp_action
*a
,
608 enum ofputil_action_code
*code
)
613 case CONSTANT_HTONS(OFPAT11_EXPERIMENTER
):
614 return decode_nxast_action(a
, code
);
616 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
617 case CONSTANT_HTONS(ENUM): \
618 len = ntohs(a->header.len); \
620 ? len >= sizeof(struct STRUCT) \
621 : len == sizeof(struct STRUCT)) { \
622 *code = OFPUTIL_##ENUM; \
625 return OFPERR_OFPBAC_BAD_LEN; \
628 #include "ofp-util.def"
631 return OFPERR_OFPBAC_BAD_TYPE
;
636 output_from_openflow11(const struct ofp11_action_output
*oao
,
639 struct ofpact_output
*output
;
642 output
= ofpact_put_OUTPUT(out
);
643 output
->max_len
= ntohs(oao
->max_len
);
645 error
= ofputil_port_from_ofp11(oao
->port
, &output
->port
);
650 return ofputil_check_output_port(output
->port
, OFPP_MAX
);
654 ofpact_from_openflow11(const union ofp_action
*a
, struct ofpbuf
*out
)
656 enum ofputil_action_code code
;
659 error
= decode_openflow11_action(a
, &code
);
665 case OFPUTIL_ACTION_INVALID
:
666 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
667 #include "ofp-util.def"
670 case OFPUTIL_OFPAT11_OUTPUT
:
671 return output_from_openflow11((const struct ofp11_action_output
*) a
,
674 case OFPUTIL_OFPAT11_SET_VLAN_VID
:
675 if (a
->vlan_vid
.vlan_vid
& ~htons(0xfff)) {
676 return OFPERR_OFPBAC_BAD_ARGUMENT
;
678 ofpact_put_SET_VLAN_VID(out
)->vlan_vid
= ntohs(a
->vlan_vid
.vlan_vid
);
681 case OFPUTIL_OFPAT11_SET_VLAN_PCP
:
682 if (a
->vlan_pcp
.vlan_pcp
& ~7) {
683 return OFPERR_OFPBAC_BAD_ARGUMENT
;
685 ofpact_put_SET_VLAN_PCP(out
)->vlan_pcp
= a
->vlan_pcp
.vlan_pcp
;
688 case OFPUTIL_OFPAT11_SET_DL_SRC
:
689 memcpy(ofpact_put_SET_ETH_SRC(out
)->mac
,
690 ((const struct ofp_action_dl_addr
*) a
)->dl_addr
, ETH_ADDR_LEN
);
693 case OFPUTIL_OFPAT11_SET_DL_DST
:
694 memcpy(ofpact_put_SET_ETH_DST(out
)->mac
,
695 ((const struct ofp_action_dl_addr
*) a
)->dl_addr
, ETH_ADDR_LEN
);
698 case OFPUTIL_OFPAT11_SET_NW_SRC
:
699 ofpact_put_SET_IPV4_SRC(out
)->ipv4
= a
->nw_addr
.nw_addr
;
702 case OFPUTIL_OFPAT11_SET_NW_DST
:
703 ofpact_put_SET_IPV4_DST(out
)->ipv4
= a
->nw_addr
.nw_addr
;
706 case OFPUTIL_OFPAT11_SET_NW_TOS
:
707 if (a
->nw_tos
.nw_tos
& ~IP_DSCP_MASK
) {
708 return OFPERR_OFPBAC_BAD_ARGUMENT
;
710 ofpact_put_SET_IPV4_DSCP(out
)->dscp
= a
->nw_tos
.nw_tos
;
713 case OFPUTIL_OFPAT11_SET_TP_SRC
:
714 ofpact_put_SET_L4_SRC_PORT(out
)->port
= ntohs(a
->tp_port
.tp_port
);
717 case OFPUTIL_OFPAT11_SET_TP_DST
:
718 ofpact_put_SET_L4_DST_PORT(out
)->port
= ntohs(a
->tp_port
.tp_port
);
721 case OFPUTIL_OFPAT12_SET_FIELD
:
722 return nxm_reg_load_from_openflow12_set_field(
723 (const struct ofp12_action_set_field
*)a
, out
);
725 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
726 #include "ofp-util.def"
727 return ofpact_from_nxast(a
, code
, out
);
734 ofpacts_from_openflow11(const union ofp_action
*in
, size_t n_in
,
737 return ofpacts_from_openflow(in
, n_in
, out
, ofpact_from_openflow11
);
740 /* OpenFlow 1.1 instructions. */
742 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
743 static inline const struct STRUCT * \
744 instruction_get_##ENUM(const struct ofp11_instruction *inst)\
746 assert(inst->type == htons(ENUM)); \
747 return (struct STRUCT *)inst; \
751 instruction_init_##ENUM(struct STRUCT *s) \
753 memset(s, 0, sizeof *s); \
754 s->type = htons(ENUM); \
755 s->len = htons(sizeof *s); \
758 static inline struct STRUCT * \
759 instruction_put_##ENUM(struct ofpbuf *buf) \
761 struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
762 instruction_init_##ENUM(s); \
768 struct instruction_type_info
{
769 enum ovs_instruction_type type
;
773 static const struct instruction_type_info inst_info
[] = {
774 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) {OVSINST_##ENUM, NAME},
780 ofpact_instruction_name_from_type(enum ovs_instruction_type type
)
782 return inst_info
[type
].name
;
786 ofpact_instruction_type_from_name(const char *name
)
788 const struct instruction_type_info
*p
;
789 for (p
= inst_info
; p
< &inst_info
[ARRAY_SIZE(inst_info
)]; p
++) {
790 if (!strcasecmp(name
, p
->name
)) {
797 static inline struct ofp11_instruction
*
798 instruction_next(const struct ofp11_instruction
*inst
)
800 return ((struct ofp11_instruction
*) (void *)
801 ((uint8_t *) inst
+ ntohs(inst
->len
)));
805 instruction_is_valid(const struct ofp11_instruction
*inst
,
806 size_t n_instructions
)
808 uint16_t len
= ntohs(inst
->len
);
809 return (!(len
% OFP11_INSTRUCTION_ALIGN
)
810 && len
>= sizeof *inst
811 && len
/ sizeof *inst
<= n_instructions
);
814 /* This macro is careful to check for instructions with bad lengths. */
815 #define INSTRUCTION_FOR_EACH(ITER, LEFT, INSTRUCTIONS, N_INSTRUCTIONS) \
816 for ((ITER) = (INSTRUCTIONS), (LEFT) = (N_INSTRUCTIONS); \
817 (LEFT) > 0 && instruction_is_valid(ITER, LEFT); \
818 ((LEFT) -= (ntohs((ITER)->len) \
819 / sizeof(struct ofp11_instruction)), \
820 (ITER) = instruction_next(ITER)))
823 decode_openflow11_instruction(const struct ofp11_instruction
*inst
,
824 enum ovs_instruction_type
*type
)
826 uint16_t len
= ntohs(inst
->len
);
828 switch (inst
->type
) {
829 case CONSTANT_HTONS(OFPIT11_EXPERIMENTER
):
830 return OFPERR_OFPBIC_BAD_EXPERIMENTER
;
832 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
833 case CONSTANT_HTONS(ENUM): \
835 ? len >= sizeof(struct STRUCT) \
836 : len == sizeof(struct STRUCT)) { \
837 *type = OVSINST_##ENUM; \
840 return OFPERR_OFPBIC_BAD_LEN; \
846 return OFPERR_OFPBIC_UNKNOWN_INST
;
851 decode_openflow11_instructions(const struct ofp11_instruction insts
[],
853 const struct ofp11_instruction
*out
[])
855 const struct ofp11_instruction
*inst
;
858 memset(out
, 0, N_OVS_INSTRUCTIONS
* sizeof *out
);
859 INSTRUCTION_FOR_EACH (inst
, left
, insts
, n_insts
) {
860 enum ovs_instruction_type type
;
863 error
= decode_openflow11_instruction(inst
, &type
);
869 return OFPERR_OFPIT_BAD_INSTRUCTION
;
875 VLOG_WARN_RL(&rl
, "bad instruction format at offset %zu",
876 (n_insts
- left
) * sizeof *inst
);
877 return OFPERR_OFPBIC_BAD_LEN
;
883 get_actions_from_instruction(const struct ofp11_instruction
*inst
,
884 const union ofp_action
**actions
,
887 *actions
= (const union ofp_action
*) (inst
+ 1);
888 *n_actions
= (ntohs(inst
->len
) - sizeof *inst
) / OFP11_INSTRUCTION_ALIGN
;
891 /* Attempts to convert 'actions_len' bytes of OpenFlow 1.1 actions from the
892 * front of 'openflow' into ofpacts. On success, replaces any existing content
893 * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
894 * Returns 0 if successful, otherwise an OpenFlow error.
896 * In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in
897 * instructions, so you should call ofpacts_pull_openflow11_instructions()
898 * instead of this function.
900 * The parsed actions are valid generically, but they may not be valid in a
901 * specific context. For example, port numbers up to OFPP_MAX are valid
902 * generically, but specific datapaths may only support port numbers in a
903 * smaller range. Use ofpacts_check() to additional check whether actions are
904 * valid in a specific context. */
906 ofpacts_pull_openflow11_actions(struct ofpbuf
*openflow
,
907 unsigned int actions_len
,
908 struct ofpbuf
*ofpacts
)
910 return ofpacts_pull_actions(openflow
, actions_len
, ofpacts
,
911 ofpacts_from_openflow11
);
915 ofpacts_pull_openflow11_instructions(struct ofpbuf
*openflow
,
916 unsigned int instructions_len
,
917 struct ofpbuf
*ofpacts
)
919 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
920 const struct ofp11_instruction
*instructions
;
921 const struct ofp11_instruction
*insts
[N_OVS_INSTRUCTIONS
];
924 ofpbuf_clear(ofpacts
);
926 if (instructions_len
% OFP11_INSTRUCTION_ALIGN
!= 0) {
927 VLOG_WARN_RL(&rl
, "OpenFlow message instructions length %u is not a "
929 instructions_len
, OFP11_INSTRUCTION_ALIGN
);
930 error
= OFPERR_OFPBIC_BAD_LEN
;
934 instructions
= ofpbuf_try_pull(openflow
, instructions_len
);
935 if (instructions
== NULL
) {
936 VLOG_WARN_RL(&rl
, "OpenFlow message instructions length %u exceeds "
937 "remaining message length (%zu)",
938 instructions_len
, openflow
->size
);
939 error
= OFPERR_OFPBIC_BAD_LEN
;
943 error
= decode_openflow11_instructions(
944 instructions
, instructions_len
/ OFP11_INSTRUCTION_ALIGN
,
950 if (insts
[OVSINST_OFPIT11_APPLY_ACTIONS
]) {
951 const union ofp_action
*actions
;
954 get_actions_from_instruction(insts
[OVSINST_OFPIT11_APPLY_ACTIONS
],
955 &actions
, &n_actions
);
956 error
= ofpacts_from_openflow11(actions
, n_actions
, ofpacts
);
962 if (insts
[OVSINST_OFPIT11_GOTO_TABLE
] ||
963 insts
[OVSINST_OFPIT11_WRITE_METADATA
] ||
964 insts
[OVSINST_OFPIT11_WRITE_ACTIONS
] ||
965 insts
[OVSINST_OFPIT11_CLEAR_ACTIONS
]) {
966 error
= OFPERR_OFPBIC_UNSUP_INST
;
972 ofpbuf_clear(ofpacts
);
978 ofpact_check__(const struct ofpact
*a
, const struct flow
*flow
, int max_ports
)
980 const struct ofpact_enqueue
*enqueue
;
984 return ofputil_check_output_port(ofpact_get_OUTPUT(a
)->port
,
987 case OFPACT_CONTROLLER
:
991 enqueue
= ofpact_get_ENQUEUE(a
);
992 if (enqueue
->port
>= max_ports
&& enqueue
->port
!= OFPP_IN_PORT
993 && enqueue
->port
!= OFPP_LOCAL
) {
994 return OFPERR_OFPBAC_BAD_OUT_PORT
;
998 case OFPACT_OUTPUT_REG
:
999 return mf_check_src(&ofpact_get_OUTPUT_REG(a
)->src
, flow
);
1002 return bundle_check(ofpact_get_BUNDLE(a
), max_ports
, flow
);
1004 case OFPACT_SET_VLAN_VID
:
1005 case OFPACT_SET_VLAN_PCP
:
1006 case OFPACT_STRIP_VLAN
:
1007 case OFPACT_SET_ETH_SRC
:
1008 case OFPACT_SET_ETH_DST
:
1009 case OFPACT_SET_IPV4_SRC
:
1010 case OFPACT_SET_IPV4_DST
:
1011 case OFPACT_SET_IPV4_DSCP
:
1012 case OFPACT_SET_L4_SRC_PORT
:
1013 case OFPACT_SET_L4_DST_PORT
:
1016 case OFPACT_REG_MOVE
:
1017 return nxm_reg_move_check(ofpact_get_REG_MOVE(a
), flow
);
1019 case OFPACT_REG_LOAD
:
1020 return nxm_reg_load_check(ofpact_get_REG_LOAD(a
), flow
);
1022 case OFPACT_DEC_TTL
:
1023 case OFPACT_SET_TUNNEL
:
1024 case OFPACT_SET_QUEUE
:
1025 case OFPACT_POP_QUEUE
:
1026 case OFPACT_FIN_TIMEOUT
:
1027 case OFPACT_RESUBMIT
:
1031 return learn_check(ofpact_get_LEARN(a
), flow
);
1033 case OFPACT_MULTIPATH
:
1034 return multipath_check(ofpact_get_MULTIPATH(a
), flow
);
1036 case OFPACT_AUTOPATH
:
1037 return autopath_check(ofpact_get_AUTOPATH(a
), flow
);
1048 /* Checks that the 'ofpacts_len' bytes of actions in 'ofpacts' are
1049 * appropriate for a packet with the prerequisites satisfied by 'flow' in a
1050 * switch with no more than 'max_ports' ports. */
1052 ofpacts_check(const struct ofpact ofpacts
[], size_t ofpacts_len
,
1053 const struct flow
*flow
, int max_ports
)
1055 const struct ofpact
*a
;
1057 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
1058 enum ofperr error
= ofpact_check__(a
, flow
, max_ports
);
1067 /* Converting ofpacts to Nicira OpenFlow extensions. */
1070 ofpact_output_reg_to_nxast(const struct ofpact_output_reg
*output_reg
,
1073 struct nx_action_output_reg
*naor
= ofputil_put_NXAST_OUTPUT_REG(out
);
1075 naor
->ofs_nbits
= nxm_encode_ofs_nbits(output_reg
->src
.ofs
,
1076 output_reg
->src
.n_bits
);
1077 naor
->src
= htonl(output_reg
->src
.field
->nxm_header
);
1078 naor
->max_len
= htons(output_reg
->max_len
);
1082 ofpact_resubmit_to_nxast(const struct ofpact_resubmit
*resubmit
,
1085 struct nx_action_resubmit
*nar
;
1087 if (resubmit
->table_id
== 0xff
1088 && resubmit
->ofpact
.compat
!= OFPUTIL_NXAST_RESUBMIT_TABLE
) {
1089 nar
= ofputil_put_NXAST_RESUBMIT(out
);
1091 nar
= ofputil_put_NXAST_RESUBMIT_TABLE(out
);
1092 nar
->table
= resubmit
->table_id
;
1094 nar
->in_port
= htons(resubmit
->in_port
);
1098 ofpact_set_tunnel_to_nxast(const struct ofpact_tunnel
*tunnel
,
1101 uint64_t tun_id
= tunnel
->tun_id
;
1103 if (tun_id
<= UINT32_MAX
1104 && tunnel
->ofpact
.compat
!= OFPUTIL_NXAST_SET_TUNNEL64
) {
1105 ofputil_put_NXAST_SET_TUNNEL(out
)->tun_id
= htonl(tun_id
);
1107 ofputil_put_NXAST_SET_TUNNEL64(out
)->tun_id
= htonll(tun_id
);
1112 ofpact_note_to_nxast(const struct ofpact_note
*note
, struct ofpbuf
*out
)
1114 size_t start_ofs
= out
->size
;
1115 struct nx_action_note
*nan
;
1116 unsigned int remainder
;
1119 nan
= ofputil_put_NXAST_NOTE(out
);
1120 out
->size
-= sizeof nan
->note
;
1122 ofpbuf_put(out
, note
->data
, note
->length
);
1124 len
= out
->size
- start_ofs
;
1125 remainder
= len
% OFP_ACTION_ALIGN
;
1127 ofpbuf_put_zeros(out
, OFP_ACTION_ALIGN
- remainder
);
1129 nan
= (struct nx_action_note
*)((char *)out
->data
+ start_ofs
);
1130 nan
->len
= htons(out
->size
- start_ofs
);
1134 ofpact_controller_to_nxast(const struct ofpact_controller
*oc
,
1137 struct nx_action_controller
*nac
;
1139 nac
= ofputil_put_NXAST_CONTROLLER(out
);
1140 nac
->max_len
= htons(oc
->max_len
);
1141 nac
->controller_id
= htons(oc
->controller_id
);
1142 nac
->reason
= oc
->reason
;
1146 ofpact_dec_ttl_to_nxast(const struct ofpact_cnt_ids
*oc_ids
,
1149 if (oc_ids
->ofpact
.compat
== OFPUTIL_NXAST_DEC_TTL
) {
1150 ofputil_put_NXAST_DEC_TTL(out
);
1152 struct nx_action_cnt_ids
*nac_ids
=
1153 ofputil_put_NXAST_DEC_TTL_CNT_IDS(out
);
1154 int ids_len
= ROUND_UP(2 * oc_ids
->n_controllers
, OFP_ACTION_ALIGN
);
1158 nac_ids
->len
= htons(ntohs(nac_ids
->len
) + ids_len
);
1159 nac_ids
->n_controllers
= htons(oc_ids
->n_controllers
);
1161 ids
= ofpbuf_put_zeros(out
, ids_len
);
1162 for (i
= 0; i
< oc_ids
->n_controllers
; i
++) {
1163 ids
[i
] = htons(oc_ids
->cnt_ids
[i
]);
1169 ofpact_fin_timeout_to_nxast(const struct ofpact_fin_timeout
*fin_timeout
,
1172 struct nx_action_fin_timeout
*naft
= ofputil_put_NXAST_FIN_TIMEOUT(out
);
1173 naft
->fin_idle_timeout
= htons(fin_timeout
->fin_idle_timeout
);
1174 naft
->fin_hard_timeout
= htons(fin_timeout
->fin_hard_timeout
);
1178 ofpact_to_nxast(const struct ofpact
*a
, struct ofpbuf
*out
)
1181 case OFPACT_CONTROLLER
:
1182 ofpact_controller_to_nxast(ofpact_get_CONTROLLER(a
), out
);
1185 case OFPACT_OUTPUT_REG
:
1186 ofpact_output_reg_to_nxast(ofpact_get_OUTPUT_REG(a
), out
);
1190 bundle_to_nxast(ofpact_get_BUNDLE(a
), out
);
1193 case OFPACT_REG_MOVE
:
1194 nxm_reg_move_to_nxast(ofpact_get_REG_MOVE(a
), out
);
1197 case OFPACT_REG_LOAD
:
1198 nxm_reg_load_to_nxast(ofpact_get_REG_LOAD(a
), out
);
1201 case OFPACT_DEC_TTL
:
1202 ofpact_dec_ttl_to_nxast(ofpact_get_DEC_TTL(a
), out
);
1205 case OFPACT_SET_TUNNEL
:
1206 ofpact_set_tunnel_to_nxast(ofpact_get_SET_TUNNEL(a
), out
);
1209 case OFPACT_SET_QUEUE
:
1210 ofputil_put_NXAST_SET_QUEUE(out
)->queue_id
1211 = htonl(ofpact_get_SET_QUEUE(a
)->queue_id
);
1214 case OFPACT_POP_QUEUE
:
1215 ofputil_put_NXAST_POP_QUEUE(out
);
1218 case OFPACT_FIN_TIMEOUT
:
1219 ofpact_fin_timeout_to_nxast(ofpact_get_FIN_TIMEOUT(a
), out
);
1222 case OFPACT_RESUBMIT
:
1223 ofpact_resubmit_to_nxast(ofpact_get_RESUBMIT(a
), out
);
1227 learn_to_nxast(ofpact_get_LEARN(a
), out
);
1230 case OFPACT_MULTIPATH
:
1231 multipath_to_nxast(ofpact_get_MULTIPATH(a
), out
);
1234 case OFPACT_AUTOPATH
:
1235 autopath_to_nxast(ofpact_get_AUTOPATH(a
), out
);
1239 ofpact_note_to_nxast(ofpact_get_NOTE(a
), out
);
1243 ofputil_put_NXAST_EXIT(out
);
1247 case OFPACT_ENQUEUE
:
1248 case OFPACT_SET_VLAN_VID
:
1249 case OFPACT_SET_VLAN_PCP
:
1250 case OFPACT_STRIP_VLAN
:
1251 case OFPACT_SET_ETH_SRC
:
1252 case OFPACT_SET_ETH_DST
:
1253 case OFPACT_SET_IPV4_SRC
:
1254 case OFPACT_SET_IPV4_DST
:
1255 case OFPACT_SET_IPV4_DSCP
:
1256 case OFPACT_SET_L4_SRC_PORT
:
1257 case OFPACT_SET_L4_DST_PORT
:
1262 /* Converting ofpacts to OpenFlow 1.0. */
1265 ofpact_output_to_openflow10(const struct ofpact_output
*output
,
1268 struct ofp10_action_output
*oao
;
1270 oao
= ofputil_put_OFPAT10_OUTPUT(out
);
1271 oao
->port
= htons(output
->port
);
1272 oao
->max_len
= htons(output
->max_len
);
1276 ofpact_enqueue_to_openflow10(const struct ofpact_enqueue
*enqueue
,
1279 struct ofp_action_enqueue
*oae
;
1281 oae
= ofputil_put_OFPAT10_ENQUEUE(out
);
1282 oae
->port
= htons(enqueue
->port
);
1283 oae
->queue_id
= htonl(enqueue
->queue
);
1287 ofpact_to_openflow10(const struct ofpact
*a
, struct ofpbuf
*out
)
1291 ofpact_output_to_openflow10(ofpact_get_OUTPUT(a
), out
);
1294 case OFPACT_ENQUEUE
:
1295 ofpact_enqueue_to_openflow10(ofpact_get_ENQUEUE(a
), out
);
1298 case OFPACT_SET_VLAN_VID
:
1299 ofputil_put_OFPAT10_SET_VLAN_VID(out
)->vlan_vid
1300 = htons(ofpact_get_SET_VLAN_VID(a
)->vlan_vid
);
1303 case OFPACT_SET_VLAN_PCP
:
1304 ofputil_put_OFPAT10_SET_VLAN_PCP(out
)->vlan_pcp
1305 = ofpact_get_SET_VLAN_PCP(a
)->vlan_pcp
;
1308 case OFPACT_STRIP_VLAN
:
1309 ofputil_put_OFPAT10_STRIP_VLAN(out
);
1312 case OFPACT_SET_ETH_SRC
:
1313 memcpy(ofputil_put_OFPAT10_SET_DL_SRC(out
)->dl_addr
,
1314 ofpact_get_SET_ETH_SRC(a
)->mac
, ETH_ADDR_LEN
);
1317 case OFPACT_SET_ETH_DST
:
1318 memcpy(ofputil_put_OFPAT10_SET_DL_DST(out
)->dl_addr
,
1319 ofpact_get_SET_ETH_DST(a
)->mac
, ETH_ADDR_LEN
);
1322 case OFPACT_SET_IPV4_SRC
:
1323 ofputil_put_OFPAT10_SET_NW_SRC(out
)->nw_addr
1324 = ofpact_get_SET_IPV4_SRC(a
)->ipv4
;
1327 case OFPACT_SET_IPV4_DST
:
1328 ofputil_put_OFPAT10_SET_NW_DST(out
)->nw_addr
1329 = ofpact_get_SET_IPV4_DST(a
)->ipv4
;
1332 case OFPACT_SET_IPV4_DSCP
:
1333 ofputil_put_OFPAT10_SET_NW_TOS(out
)->nw_tos
1334 = ofpact_get_SET_IPV4_DSCP(a
)->dscp
;
1337 case OFPACT_SET_L4_SRC_PORT
:
1338 ofputil_put_OFPAT10_SET_TP_SRC(out
)->tp_port
1339 = htons(ofpact_get_SET_L4_SRC_PORT(a
)->port
);
1342 case OFPACT_SET_L4_DST_PORT
:
1343 ofputil_put_OFPAT10_SET_TP_DST(out
)->tp_port
1344 = htons(ofpact_get_SET_L4_DST_PORT(a
)->port
);
1347 case OFPACT_CONTROLLER
:
1348 case OFPACT_OUTPUT_REG
:
1350 case OFPACT_REG_MOVE
:
1351 case OFPACT_REG_LOAD
:
1352 case OFPACT_DEC_TTL
:
1353 case OFPACT_SET_TUNNEL
:
1354 case OFPACT_SET_QUEUE
:
1355 case OFPACT_POP_QUEUE
:
1356 case OFPACT_FIN_TIMEOUT
:
1357 case OFPACT_RESUBMIT
:
1359 case OFPACT_MULTIPATH
:
1360 case OFPACT_AUTOPATH
:
1363 ofpact_to_nxast(a
, out
);
1368 /* Converts the 'ofpacts_len' bytes of ofpacts in 'ofpacts' into OpenFlow 1.0
1369 * actions in 'openflow', appending the actions to any existing data in
1372 ofpacts_put_openflow10(const struct ofpact ofpacts
[], size_t ofpacts_len
,
1373 struct ofpbuf
*openflow
)
1375 const struct ofpact
*a
;
1377 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
1378 ofpact_to_openflow10(a
, openflow
);
1382 /* Converting ofpacts to OpenFlow 1.1. */
1385 ofpact_output_to_openflow11(const struct ofpact_output
*output
,
1388 struct ofp11_action_output
*oao
;
1390 oao
= ofputil_put_OFPAT11_OUTPUT(out
);
1391 oao
->port
= ofputil_port_to_ofp11(output
->port
);
1392 oao
->max_len
= htons(output
->max_len
);
1396 ofpact_to_openflow11(const struct ofpact
*a
, struct ofpbuf
*out
)
1400 return ofpact_output_to_openflow11(ofpact_get_OUTPUT(a
), out
);
1402 case OFPACT_ENQUEUE
:
1406 case OFPACT_SET_VLAN_VID
:
1407 ofputil_put_OFPAT11_SET_VLAN_VID(out
)->vlan_vid
1408 = htons(ofpact_get_SET_VLAN_VID(a
)->vlan_vid
);
1411 case OFPACT_SET_VLAN_PCP
:
1412 ofputil_put_OFPAT11_SET_VLAN_PCP(out
)->vlan_pcp
1413 = ofpact_get_SET_VLAN_PCP(a
)->vlan_pcp
;
1416 case OFPACT_STRIP_VLAN
:
1420 case OFPACT_SET_ETH_SRC
:
1421 memcpy(ofputil_put_OFPAT11_SET_DL_SRC(out
)->dl_addr
,
1422 ofpact_get_SET_ETH_SRC(a
)->mac
, ETH_ADDR_LEN
);
1425 case OFPACT_SET_ETH_DST
:
1426 memcpy(ofputil_put_OFPAT11_SET_DL_DST(out
)->dl_addr
,
1427 ofpact_get_SET_ETH_DST(a
)->mac
, ETH_ADDR_LEN
);
1430 case OFPACT_SET_IPV4_SRC
:
1431 ofputil_put_OFPAT11_SET_NW_SRC(out
)->nw_addr
1432 = ofpact_get_SET_IPV4_SRC(a
)->ipv4
;
1435 case OFPACT_SET_IPV4_DST
:
1436 ofputil_put_OFPAT11_SET_NW_DST(out
)->nw_addr
1437 = ofpact_get_SET_IPV4_DST(a
)->ipv4
;
1440 case OFPACT_SET_IPV4_DSCP
:
1441 ofputil_put_OFPAT11_SET_NW_TOS(out
)->nw_tos
1442 = ofpact_get_SET_IPV4_DSCP(a
)->dscp
;
1445 case OFPACT_SET_L4_SRC_PORT
:
1446 ofputil_put_OFPAT11_SET_TP_SRC(out
)->tp_port
1447 = htons(ofpact_get_SET_L4_SRC_PORT(a
)->port
);
1450 case OFPACT_SET_L4_DST_PORT
:
1451 ofputil_put_OFPAT11_SET_TP_DST(out
)->tp_port
1452 = htons(ofpact_get_SET_L4_DST_PORT(a
)->port
);
1455 case OFPACT_CONTROLLER
:
1456 case OFPACT_OUTPUT_REG
:
1458 case OFPACT_REG_MOVE
:
1459 case OFPACT_REG_LOAD
:
1460 case OFPACT_DEC_TTL
:
1461 case OFPACT_SET_TUNNEL
:
1462 case OFPACT_SET_QUEUE
:
1463 case OFPACT_POP_QUEUE
:
1464 case OFPACT_FIN_TIMEOUT
:
1465 case OFPACT_RESUBMIT
:
1467 case OFPACT_MULTIPATH
:
1468 case OFPACT_AUTOPATH
:
1471 ofpact_to_nxast(a
, out
);
1476 /* Converts the ofpacts in 'ofpacts' (terminated by OFPACT_END) into OpenFlow
1477 * 1.1 actions in 'openflow', appending the actions to any existing data in
1480 ofpacts_put_openflow11_actions(const struct ofpact ofpacts
[],
1481 size_t ofpacts_len
, struct ofpbuf
*openflow
)
1483 const struct ofpact
*a
;
1484 size_t start_size
= openflow
->size
;
1486 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
1487 ofpact_to_openflow11(a
, openflow
);
1490 return openflow
->size
- start_size
;
1494 ofpacts_put_openflow11_instructions(const struct ofpact ofpacts
[],
1496 struct ofpbuf
*openflow
)
1498 struct ofp11_instruction_actions
*oia
;
1501 /* Put an OFPIT11_APPLY_ACTIONS instruction and fill it in. */
1502 ofs
= openflow
->size
;
1503 instruction_put_OFPIT11_APPLY_ACTIONS(openflow
);
1504 ofpacts_put_openflow11_actions(ofpacts
, ofpacts_len
, openflow
);
1506 /* Update the instruction's length (or, if it's empty, delete it). */
1507 oia
= ofpbuf_at_assert(openflow
, ofs
, sizeof *oia
);
1508 if (openflow
->size
> ofs
+ sizeof *oia
) {
1509 oia
->len
= htons(openflow
->size
- ofs
);
1511 openflow
->size
= ofs
;
1515 /* Returns true if 'action' outputs to 'port', false otherwise. */
1517 ofpact_outputs_to_port(const struct ofpact
*ofpact
, uint16_t port
)
1519 switch (ofpact
->type
) {
1521 return ofpact_get_OUTPUT(ofpact
)->port
== port
;
1522 case OFPACT_ENQUEUE
:
1523 return ofpact_get_ENQUEUE(ofpact
)->port
== port
;
1524 case OFPACT_CONTROLLER
:
1525 return port
== OFPP_CONTROLLER
;
1527 case OFPACT_OUTPUT_REG
:
1529 case OFPACT_SET_VLAN_VID
:
1530 case OFPACT_SET_VLAN_PCP
:
1531 case OFPACT_STRIP_VLAN
:
1532 case OFPACT_SET_ETH_SRC
:
1533 case OFPACT_SET_ETH_DST
:
1534 case OFPACT_SET_IPV4_SRC
:
1535 case OFPACT_SET_IPV4_DST
:
1536 case OFPACT_SET_IPV4_DSCP
:
1537 case OFPACT_SET_L4_SRC_PORT
:
1538 case OFPACT_SET_L4_DST_PORT
:
1539 case OFPACT_REG_MOVE
:
1540 case OFPACT_REG_LOAD
:
1541 case OFPACT_DEC_TTL
:
1542 case OFPACT_SET_TUNNEL
:
1543 case OFPACT_SET_QUEUE
:
1544 case OFPACT_POP_QUEUE
:
1545 case OFPACT_FIN_TIMEOUT
:
1546 case OFPACT_RESUBMIT
:
1548 case OFPACT_MULTIPATH
:
1549 case OFPACT_AUTOPATH
:
1557 /* Returns true if any action in the 'ofpacts_len' bytes of 'ofpacts' outputs
1558 * to 'port', false otherwise. */
1560 ofpacts_output_to_port(const struct ofpact
*ofpacts
, size_t ofpacts_len
,
1563 const struct ofpact
*a
;
1565 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
1566 if (ofpact_outputs_to_port(a
, port
)) {
1575 ofpacts_equal(const struct ofpact
*a
, size_t a_len
,
1576 const struct ofpact
*b
, size_t b_len
)
1578 return a_len
== b_len
&& !memcmp(a
, b
, a_len
);
1581 /* Formatting ofpacts. */
1584 print_note(const struct ofpact_note
*note
, struct ds
*string
)
1588 ds_put_cstr(string
, "note:");
1589 for (i
= 0; i
< note
->length
; i
++) {
1591 ds_put_char(string
, '.');
1593 ds_put_format(string
, "%02"PRIx8
, note
->data
[i
]);
1598 print_dec_ttl(const struct ofpact_cnt_ids
*ids
,
1603 ds_put_cstr(s
, "dec_ttl");
1604 if (ids
->ofpact
.compat
== OFPUTIL_NXAST_DEC_TTL_CNT_IDS
) {
1605 ds_put_cstr(s
, "(");
1606 for (i
= 0; i
< ids
->n_controllers
; i
++) {
1608 ds_put_cstr(s
, ",");
1610 ds_put_format(s
, "%"PRIu16
, ids
->cnt_ids
[i
]);
1612 ds_put_cstr(s
, ")");
1617 print_fin_timeout(const struct ofpact_fin_timeout
*fin_timeout
,
1620 ds_put_cstr(s
, "fin_timeout(");
1621 if (fin_timeout
->fin_idle_timeout
) {
1622 ds_put_format(s
, "idle_timeout=%"PRIu16
",",
1623 fin_timeout
->fin_idle_timeout
);
1625 if (fin_timeout
->fin_hard_timeout
) {
1626 ds_put_format(s
, "hard_timeout=%"PRIu16
",",
1627 fin_timeout
->fin_hard_timeout
);
1630 ds_put_char(s
, ')');
1634 ofpact_format(const struct ofpact
*a
, struct ds
*s
)
1636 const struct ofpact_enqueue
*enqueue
;
1637 const struct ofpact_resubmit
*resubmit
;
1638 const struct ofpact_autopath
*autopath
;
1639 const struct ofpact_controller
*controller
;
1640 const struct ofpact_tunnel
*tunnel
;
1645 port
= ofpact_get_OUTPUT(a
)->port
;
1646 if (port
< OFPP_MAX
) {
1647 ds_put_format(s
, "output:%"PRIu16
, port
);
1649 ofputil_format_port(port
, s
);
1650 if (port
== OFPP_CONTROLLER
) {
1651 ds_put_format(s
, ":%"PRIu16
, ofpact_get_OUTPUT(a
)->max_len
);
1656 case OFPACT_CONTROLLER
:
1657 controller
= ofpact_get_CONTROLLER(a
);
1658 if (controller
->reason
== OFPR_ACTION
&&
1659 controller
->controller_id
== 0) {
1660 ds_put_format(s
, "CONTROLLER:%"PRIu16
,
1661 ofpact_get_CONTROLLER(a
)->max_len
);
1663 enum ofp_packet_in_reason reason
= controller
->reason
;
1665 ds_put_cstr(s
, "controller(");
1666 if (reason
!= OFPR_ACTION
) {
1667 ds_put_format(s
, "reason=%s,",
1668 ofputil_packet_in_reason_to_string(reason
));
1670 if (controller
->max_len
!= UINT16_MAX
) {
1671 ds_put_format(s
, "max_len=%"PRIu16
",", controller
->max_len
);
1673 if (controller
->controller_id
!= 0) {
1674 ds_put_format(s
, "id=%"PRIu16
",", controller
->controller_id
);
1677 ds_put_char(s
, ')');
1681 case OFPACT_ENQUEUE
:
1682 enqueue
= ofpact_get_ENQUEUE(a
);
1683 ds_put_format(s
, "enqueue:");
1684 ofputil_format_port(enqueue
->port
, s
);
1685 ds_put_format(s
, "q%"PRIu32
, enqueue
->queue
);
1688 case OFPACT_OUTPUT_REG
:
1689 ds_put_cstr(s
, "output:");
1690 mf_format_subfield(&ofpact_get_OUTPUT_REG(a
)->src
, s
);
1694 bundle_format(ofpact_get_BUNDLE(a
), s
);
1697 case OFPACT_SET_VLAN_VID
:
1698 ds_put_format(s
, "mod_vlan_vid:%"PRIu16
,
1699 ofpact_get_SET_VLAN_VID(a
)->vlan_vid
);
1702 case OFPACT_SET_VLAN_PCP
:
1703 ds_put_format(s
, "mod_vlan_pcp:%"PRIu8
,
1704 ofpact_get_SET_VLAN_PCP(a
)->vlan_pcp
);
1707 case OFPACT_STRIP_VLAN
:
1708 ds_put_cstr(s
, "strip_vlan");
1711 case OFPACT_SET_ETH_SRC
:
1712 ds_put_format(s
, "mod_dl_src:"ETH_ADDR_FMT
,
1713 ETH_ADDR_ARGS(ofpact_get_SET_ETH_SRC(a
)->mac
));
1716 case OFPACT_SET_ETH_DST
:
1717 ds_put_format(s
, "mod_dl_dst:"ETH_ADDR_FMT
,
1718 ETH_ADDR_ARGS(ofpact_get_SET_ETH_DST(a
)->mac
));
1721 case OFPACT_SET_IPV4_SRC
:
1722 ds_put_format(s
, "mod_nw_src:"IP_FMT
,
1723 IP_ARGS(&ofpact_get_SET_IPV4_SRC(a
)->ipv4
));
1726 case OFPACT_SET_IPV4_DST
:
1727 ds_put_format(s
, "mod_nw_dst:"IP_FMT
,
1728 IP_ARGS(&ofpact_get_SET_IPV4_DST(a
)->ipv4
));
1731 case OFPACT_SET_IPV4_DSCP
:
1732 ds_put_format(s
, "mod_nw_tos:%d", ofpact_get_SET_IPV4_DSCP(a
)->dscp
);
1735 case OFPACT_SET_L4_SRC_PORT
:
1736 ds_put_format(s
, "mod_tp_src:%d", ofpact_get_SET_L4_SRC_PORT(a
)->port
);
1739 case OFPACT_SET_L4_DST_PORT
:
1740 ds_put_format(s
, "mod_tp_dst:%d", ofpact_get_SET_L4_DST_PORT(a
)->port
);
1743 case OFPACT_REG_MOVE
:
1744 nxm_format_reg_move(ofpact_get_REG_MOVE(a
), s
);
1747 case OFPACT_REG_LOAD
:
1748 nxm_format_reg_load(ofpact_get_REG_LOAD(a
), s
);
1751 case OFPACT_DEC_TTL
:
1752 print_dec_ttl(ofpact_get_DEC_TTL(a
), s
);
1755 case OFPACT_SET_TUNNEL
:
1756 tunnel
= ofpact_get_SET_TUNNEL(a
);
1757 ds_put_format(s
, "set_tunnel%s:%#"PRIx64
,
1758 (tunnel
->tun_id
> UINT32_MAX
1759 || a
->compat
== OFPUTIL_NXAST_SET_TUNNEL64
? "64" : ""),
1763 case OFPACT_SET_QUEUE
:
1764 ds_put_format(s
, "set_queue:%"PRIu32
,
1765 ofpact_get_SET_QUEUE(a
)->queue_id
);
1768 case OFPACT_POP_QUEUE
:
1769 ds_put_cstr(s
, "pop_queue");
1772 case OFPACT_FIN_TIMEOUT
:
1773 print_fin_timeout(ofpact_get_FIN_TIMEOUT(a
), s
);
1776 case OFPACT_RESUBMIT
:
1777 resubmit
= ofpact_get_RESUBMIT(a
);
1778 if (resubmit
->in_port
!= OFPP_IN_PORT
&& resubmit
->table_id
== 255) {
1779 ds_put_cstr(s
, "resubmit:");
1780 ofputil_format_port(resubmit
->in_port
, s
);
1782 ds_put_format(s
, "resubmit(");
1783 if (resubmit
->in_port
!= OFPP_IN_PORT
) {
1784 ofputil_format_port(resubmit
->in_port
, s
);
1786 ds_put_char(s
, ',');
1787 if (resubmit
->table_id
!= 255) {
1788 ds_put_format(s
, "%"PRIu8
, resubmit
->table_id
);
1790 ds_put_char(s
, ')');
1795 learn_format(ofpact_get_LEARN(a
), s
);
1798 case OFPACT_MULTIPATH
:
1799 multipath_format(ofpact_get_MULTIPATH(a
), s
);
1802 case OFPACT_AUTOPATH
:
1803 autopath
= ofpact_get_AUTOPATH(a
);
1804 ds_put_cstr(s
, "autopath(");
1805 ofputil_format_port(autopath
->port
, s
);
1806 ds_put_char(s
, ',');
1807 mf_format_subfield(&autopath
->dst
, s
);
1808 ds_put_char(s
, ')');
1812 print_note(ofpact_get_NOTE(a
), s
);
1816 ds_put_cstr(s
, "exit");
1821 /* Appends a string representing the 'ofpacts_len' bytes of ofpacts in
1822 * 'ofpacts' to 'string'. */
1824 ofpacts_format(const struct ofpact
*ofpacts
, size_t ofpacts_len
,
1827 ds_put_cstr(string
, "actions=");
1829 ds_put_cstr(string
, "drop");
1831 const struct ofpact
*a
;
1833 OFPACT_FOR_EACH (a
, ofpacts
, ofpacts_len
) {
1835 ds_put_cstr(string
, ",");
1837 ofpact_format(a
, string
);
1842 /* Internal use by helpers. */
1845 ofpact_put(struct ofpbuf
*ofpacts
, enum ofpact_type type
, size_t len
)
1847 struct ofpact
*ofpact
;
1849 ofpact_pad(ofpacts
);
1850 ofpact
= ofpacts
->l2
= ofpbuf_put_uninit(ofpacts
, len
);
1851 ofpact_init(ofpact
, type
, len
);
1856 ofpact_init(struct ofpact
*ofpact
, enum ofpact_type type
, size_t len
)
1858 memset(ofpact
, 0, len
);
1859 ofpact
->type
= type
;
1860 ofpact
->compat
= OFPUTIL_ACTION_INVALID
;
1864 /* Updates 'ofpact->len' to the number of bytes in the tail of 'ofpacts'
1865 * starting at 'ofpact'.
1867 * This is the correct way to update a variable-length ofpact's length after
1868 * adding the variable-length part of the payload. (See the large comment
1869 * near the end of ofp-actions.h for more information.) */
1871 ofpact_update_len(struct ofpbuf
*ofpacts
, struct ofpact
*ofpact
)
1873 assert(ofpact
== ofpacts
->l2
);
1874 ofpact
->len
= (char *) ofpbuf_tail(ofpacts
) - (char *) ofpact
;
1877 /* Pads out 'ofpacts' to a multiple of OFPACT_ALIGNTO bytes in length. Each
1878 * ofpact_put_<ENUM>() calls this function automatically beforehand, but the
1879 * client must call this itself after adding the final ofpact to an array of
1882 * (The consequences of failing to call this function are probably not dire.
1883 * OFPACT_FOR_EACH will calculate a pointer beyond the end of the ofpacts, but
1884 * not dereference it. That's undefined behavior, technically, but it will not
1885 * cause a real problem on common systems. Still, it seems better to call
1888 ofpact_pad(struct ofpbuf
*ofpacts
)
1890 unsigned int rem
= ofpacts
->size
% OFPACT_ALIGNTO
;
1892 ofpbuf_put_zeros(ofpacts
, OFPACT_ALIGNTO
- rem
);