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.
18 #include "ofp-actions.h"
20 #include "byte-order.h"
22 #include "dynamic-string.h"
24 #include "meta-flow.h"
25 #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 = u16_to_ofp(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 ofp10_action_enqueue *oae,
55 struct ofpact_enqueue *enqueue;
57 enqueue = ofpact_put_ENQUEUE(out);
58 enqueue->port = u16_to_ofp(ntohs(oae->port));
59 enqueue->queue = ntohl(oae->queue_id);
60 if (ofp_to_u16(enqueue->port) >= ofp_to_u16(OFPP_MAX)
61 && enqueue->port != OFPP_IN_PORT
62 && enqueue->port != OFPP_LOCAL) {
63 return OFPERR_OFPBAC_BAD_OUT_PORT;
69 resubmit_from_openflow(const struct nx_action_resubmit *nar,
72 struct ofpact_resubmit *resubmit;
74 resubmit = ofpact_put_RESUBMIT(out);
75 resubmit->ofpact.compat = OFPUTIL_NXAST_RESUBMIT;
76 resubmit->in_port = u16_to_ofp(ntohs(nar->in_port));
77 resubmit->table_id = 0xff;
81 resubmit_table_from_openflow(const struct nx_action_resubmit *nar,
84 struct ofpact_resubmit *resubmit;
86 if (nar->pad[0] || nar->pad[1] || nar->pad[2]) {
87 return OFPERR_OFPBAC_BAD_ARGUMENT;
90 resubmit = ofpact_put_RESUBMIT(out);
91 resubmit->ofpact.compat = OFPUTIL_NXAST_RESUBMIT_TABLE;
92 resubmit->in_port = u16_to_ofp(ntohs(nar->in_port));
93 resubmit->table_id = nar->table;
98 output_reg_from_openflow(const struct nx_action_output_reg *naor,
101 struct ofpact_output_reg *output_reg;
103 if (!is_all_zeros(naor->zero, sizeof naor->zero)) {
104 return OFPERR_OFPBAC_BAD_ARGUMENT;
107 output_reg = ofpact_put_OUTPUT_REG(out);
108 output_reg->src.field = mf_from_nxm_header(ntohl(naor->src));
109 output_reg->src.ofs = nxm_decode_ofs(naor->ofs_nbits);
110 output_reg->src.n_bits = nxm_decode_n_bits(naor->ofs_nbits);
111 output_reg->max_len = ntohs(naor->max_len);
113 return mf_check_src(&output_reg->src, NULL);
117 fin_timeout_from_openflow(const struct nx_action_fin_timeout *naft,
120 struct ofpact_fin_timeout *oft;
122 oft = ofpact_put_FIN_TIMEOUT(out);
123 oft->fin_idle_timeout = ntohs(naft->fin_idle_timeout);
124 oft->fin_hard_timeout = ntohs(naft->fin_hard_timeout);
128 controller_from_openflow(const struct nx_action_controller *nac,
131 struct ofpact_controller *oc;
133 oc = ofpact_put_CONTROLLER(out);
134 oc->max_len = ntohs(nac->max_len);
135 oc->controller_id = ntohs(nac->controller_id);
136 oc->reason = nac->reason;
140 metadata_from_nxast(const struct nx_action_write_metadata *nawm,
143 struct ofpact_metadata *om;
145 if (!is_all_zeros(nawm->zeros, sizeof nawm->zeros)) {
146 return OFPERR_NXBRC_MUST_BE_ZERO;
149 om = ofpact_put_WRITE_METADATA(out);
150 om->metadata = nawm->metadata;
151 om->mask = nawm->mask;
157 note_from_openflow(const struct nx_action_note *nan, struct ofpbuf *out)
159 struct ofpact_note *note;
162 length = ntohs(nan->len) - offsetof(struct nx_action_note, note);
163 note = ofpact_put(out, OFPACT_NOTE,
164 offsetof(struct ofpact_note, data) + length);
165 note->length = length;
166 memcpy(note->data, nan->note, length);
170 dec_ttl_from_openflow(struct ofpbuf *out, enum ofputil_action_code compat)
173 struct ofpact_cnt_ids *ids;
174 enum ofperr error = 0;
176 ids = ofpact_put_DEC_TTL(out);
177 ids->ofpact.compat = compat;
178 ids->n_controllers = 1;
179 ofpbuf_put(out, &id, sizeof id);
181 ofpact_update_len(out, &ids->ofpact);
186 dec_ttl_cnt_ids_from_openflow(const struct nx_action_cnt_ids *nac_ids,
189 struct ofpact_cnt_ids *ids;
193 ids = ofpact_put_DEC_TTL(out);
194 ids->ofpact.compat = OFPUTIL_NXAST_DEC_TTL_CNT_IDS;
195 ids->n_controllers = ntohs(nac_ids->n_controllers);
196 ids_size = ntohs(nac_ids->len) - sizeof *nac_ids;
198 if (!is_all_zeros(nac_ids->zeros, sizeof nac_ids->zeros)) {
199 return OFPERR_NXBRC_MUST_BE_ZERO;
202 if (ids_size < ids->n_controllers * sizeof(ovs_be16)) {
203 VLOG_WARN_RL(&rl, "Nicira action dec_ttl_cnt_ids only has %zu bytes "
204 "allocated for controller ids. %zu bytes are required for "
205 "%"PRIu16" controllers.", ids_size,
206 ids->n_controllers * sizeof(ovs_be16), ids->n_controllers);
207 return OFPERR_OFPBAC_BAD_LEN;
210 for (i = 0; i < ids->n_controllers; i++) {
211 uint16_t id = ntohs(((ovs_be16 *)(nac_ids + 1))[i]);
212 ofpbuf_put(out, &id, sizeof id);
216 ofpact_update_len(out, &ids->ofpact);
222 sample_from_openflow(const struct nx_action_sample *nas,
225 struct ofpact_sample *sample;
227 sample = ofpact_put_SAMPLE(out);
228 sample->probability = ntohs(nas->probability);
229 sample->collector_set_id = ntohl(nas->collector_set_id);
230 sample->obs_domain_id = ntohl(nas->obs_domain_id);
231 sample->obs_point_id = ntohl(nas->obs_point_id);
233 if (sample->probability == 0) {
234 return OFPERR_OFPBAC_BAD_ARGUMENT;
241 decode_nxast_action(const union ofp_action *a, enum ofputil_action_code *code)
243 const struct nx_action_header *nah = (const struct nx_action_header *) a;
244 uint16_t len = ntohs(a->header.len);
246 if (len < sizeof(struct nx_action_header)) {
247 return OFPERR_OFPBAC_BAD_LEN;
248 } else if (a->vendor.vendor != CONSTANT_HTONL(NX_VENDOR_ID)) {
249 return OFPERR_OFPBAC_BAD_VENDOR;
252 switch (nah->subtype) {
253 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
254 case CONSTANT_HTONS(ENUM): \
256 ? len >= sizeof(struct STRUCT) \
257 : len == sizeof(struct STRUCT)) { \
258 *code = OFPUTIL_##ENUM; \
261 return OFPERR_OFPBAC_BAD_LEN; \
264 #include "ofp-util.def"
266 case CONSTANT_HTONS(NXAST_SNAT__OBSOLETE):
267 case CONSTANT_HTONS(NXAST_DROP_SPOOFED_ARP__OBSOLETE):
269 return OFPERR_OFPBAC_BAD_TYPE;
273 /* Parses 'a' to determine its type. On success stores the correct type into
274 * '*code' and returns 0. On failure returns an OFPERR_* error code and
275 * '*code' is indeterminate.
277 * The caller must have already verified that 'a''s length is potentially
278 * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
279 * ofp_action) and no longer than the amount of space allocated to 'a').
281 * This function verifies that 'a''s length is correct for the type of action
282 * that it represents. */
284 decode_openflow10_action(const union ofp_action *a,
285 enum ofputil_action_code *code)
288 case CONSTANT_HTONS(OFPAT10_VENDOR):
289 return decode_nxast_action(a, code);
291 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
292 case CONSTANT_HTONS(ENUM): \
293 if (a->header.len == htons(sizeof(struct STRUCT))) { \
294 *code = OFPUTIL_##ENUM; \
297 return OFPERR_OFPBAC_BAD_LEN; \
300 #include "ofp-util.def"
303 return OFPERR_OFPBAC_BAD_TYPE;
308 ofpact_from_nxast(const union ofp_action *a, enum ofputil_action_code code,
311 const struct nx_action_resubmit *nar;
312 const struct nx_action_set_tunnel *nast;
313 const struct nx_action_set_queue *nasq;
314 const struct nx_action_note *nan;
315 const struct nx_action_set_tunnel64 *nast64;
316 const struct nx_action_write_metadata *nawm;
317 struct ofpact_tunnel *tunnel;
318 enum ofperr error = 0;
321 case OFPUTIL_ACTION_INVALID:
322 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
323 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
324 #include "ofp-util.def"
327 case OFPUTIL_NXAST_RESUBMIT:
328 resubmit_from_openflow((const struct nx_action_resubmit *) a, out);
331 case OFPUTIL_NXAST_SET_TUNNEL:
332 nast = (const struct nx_action_set_tunnel *) a;
333 tunnel = ofpact_put_SET_TUNNEL(out);
334 tunnel->ofpact.compat = code;
335 tunnel->tun_id = ntohl(nast->tun_id);
338 case OFPUTIL_NXAST_WRITE_METADATA:
339 nawm = (const struct nx_action_write_metadata *) a;
340 error = metadata_from_nxast(nawm, out);
343 case OFPUTIL_NXAST_SET_QUEUE:
344 nasq = (const struct nx_action_set_queue *) a;
345 ofpact_put_SET_QUEUE(out)->queue_id = ntohl(nasq->queue_id);
348 case OFPUTIL_NXAST_POP_QUEUE:
349 ofpact_put_POP_QUEUE(out);
352 case OFPUTIL_NXAST_REG_MOVE:
353 error = nxm_reg_move_from_openflow(
354 (const struct nx_action_reg_move *) a, out);
357 case OFPUTIL_NXAST_REG_LOAD:
358 error = nxm_reg_load_from_openflow(
359 (const struct nx_action_reg_load *) a, out);
362 case OFPUTIL_NXAST_STACK_PUSH:
363 error = nxm_stack_push_from_openflow(
364 (const struct nx_action_stack *) a, out);
367 case OFPUTIL_NXAST_STACK_POP:
368 error = nxm_stack_pop_from_openflow(
369 (const struct nx_action_stack *) a, out);
372 case OFPUTIL_NXAST_NOTE:
373 nan = (const struct nx_action_note *) a;
374 note_from_openflow(nan, out);
377 case OFPUTIL_NXAST_SET_TUNNEL64:
378 nast64 = (const struct nx_action_set_tunnel64 *) a;
379 tunnel = ofpact_put_SET_TUNNEL(out);
380 tunnel->ofpact.compat = code;
381 tunnel->tun_id = ntohll(nast64->tun_id);
384 case OFPUTIL_NXAST_MULTIPATH:
385 error = multipath_from_openflow((const struct nx_action_multipath *) a,
386 ofpact_put_MULTIPATH(out));
389 case OFPUTIL_NXAST_BUNDLE:
390 case OFPUTIL_NXAST_BUNDLE_LOAD:
391 error = bundle_from_openflow((const struct nx_action_bundle *) a, out);
394 case OFPUTIL_NXAST_OUTPUT_REG:
395 error = output_reg_from_openflow(
396 (const struct nx_action_output_reg *) a, out);
399 case OFPUTIL_NXAST_RESUBMIT_TABLE:
400 nar = (const struct nx_action_resubmit *) a;
401 error = resubmit_table_from_openflow(nar, out);
404 case OFPUTIL_NXAST_LEARN:
405 error = learn_from_openflow((const struct nx_action_learn *) a, out);
408 case OFPUTIL_NXAST_EXIT:
409 ofpact_put_EXIT(out);
412 case OFPUTIL_NXAST_DEC_TTL:
413 error = dec_ttl_from_openflow(out, code);
416 case OFPUTIL_NXAST_DEC_TTL_CNT_IDS:
417 error = dec_ttl_cnt_ids_from_openflow(
418 (const struct nx_action_cnt_ids *) a, out);
421 case OFPUTIL_NXAST_FIN_TIMEOUT:
422 fin_timeout_from_openflow(
423 (const struct nx_action_fin_timeout *) a, out);
426 case OFPUTIL_NXAST_CONTROLLER:
427 controller_from_openflow((const struct nx_action_controller *) a, out);
430 case OFPUTIL_NXAST_PUSH_MPLS: {
431 struct nx_action_push_mpls *nxapm = (struct nx_action_push_mpls *)a;
432 if (!eth_type_mpls(nxapm->ethertype)) {
433 return OFPERR_OFPBAC_BAD_ARGUMENT;
435 ofpact_put_PUSH_MPLS(out)->ethertype = nxapm->ethertype;
439 case OFPUTIL_NXAST_SET_MPLS_TTL: {
440 struct nx_action_mpls_ttl *nxamt = (struct nx_action_mpls_ttl *)a;
441 ofpact_put_SET_MPLS_TTL(out)->ttl = nxamt->ttl;
445 case OFPUTIL_NXAST_DEC_MPLS_TTL:
446 ofpact_put_DEC_MPLS_TTL(out);
449 case OFPUTIL_NXAST_POP_MPLS: {
450 struct nx_action_pop_mpls *nxapm = (struct nx_action_pop_mpls *)a;
451 if (eth_type_mpls(nxapm->ethertype)) {
452 return OFPERR_OFPBAC_BAD_ARGUMENT;
454 ofpact_put_POP_MPLS(out)->ethertype = nxapm->ethertype;
458 case OFPUTIL_NXAST_SAMPLE:
459 error = sample_from_openflow(
460 (const struct nx_action_sample *) a, out);
468 ofpact_from_openflow10(const union ofp_action *a, struct ofpbuf *out)
470 enum ofputil_action_code code;
473 error = decode_openflow10_action(a, &code);
479 case OFPUTIL_ACTION_INVALID:
480 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
481 #include "ofp-util.def"
484 case OFPUTIL_OFPAT10_OUTPUT:
485 return output_from_openflow10(&a->output10, out);
487 case OFPUTIL_OFPAT10_SET_VLAN_VID:
488 if (a->vlan_vid.vlan_vid & ~htons(0xfff)) {
489 return OFPERR_OFPBAC_BAD_ARGUMENT;
491 ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
494 case OFPUTIL_OFPAT10_SET_VLAN_PCP:
495 if (a->vlan_pcp.vlan_pcp & ~7) {
496 return OFPERR_OFPBAC_BAD_ARGUMENT;
498 ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp;
501 case OFPUTIL_OFPAT10_STRIP_VLAN:
502 ofpact_put_STRIP_VLAN(out);
505 case OFPUTIL_OFPAT10_SET_DL_SRC:
506 memcpy(ofpact_put_SET_ETH_SRC(out)->mac,
507 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
510 case OFPUTIL_OFPAT10_SET_DL_DST:
511 memcpy(ofpact_put_SET_ETH_DST(out)->mac,
512 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
515 case OFPUTIL_OFPAT10_SET_NW_SRC:
516 ofpact_put_SET_IPV4_SRC(out)->ipv4 = a->nw_addr.nw_addr;
519 case OFPUTIL_OFPAT10_SET_NW_DST:
520 ofpact_put_SET_IPV4_DST(out)->ipv4 = a->nw_addr.nw_addr;
523 case OFPUTIL_OFPAT10_SET_NW_TOS:
524 if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) {
525 return OFPERR_OFPBAC_BAD_ARGUMENT;
527 ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos;
530 case OFPUTIL_OFPAT10_SET_TP_SRC:
531 ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port);
534 case OFPUTIL_OFPAT10_SET_TP_DST:
535 ofpact_put_SET_L4_DST_PORT(out)->port = ntohs(a->tp_port.tp_port);
539 case OFPUTIL_OFPAT10_ENQUEUE:
540 error = enqueue_from_openflow10((const struct ofp10_action_enqueue *) a,
544 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
545 #include "ofp-util.def"
546 return ofpact_from_nxast(a, code, out);
552 static inline union ofp_action *
553 action_next(const union ofp_action *a)
555 return ((union ofp_action *) (void *)
556 ((uint8_t *) a + ntohs(a->header.len)));
560 action_is_valid(const union ofp_action *a, size_t n_actions)
562 uint16_t len = ntohs(a->header.len);
563 return (!(len % OFP_ACTION_ALIGN)
565 && len / sizeof *a <= n_actions);
568 /* This macro is careful to check for actions with bad lengths. */
569 #define ACTION_FOR_EACH(ITER, LEFT, ACTIONS, N_ACTIONS) \
570 for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \
571 (LEFT) > 0 && action_is_valid(ITER, LEFT); \
572 ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \
573 (ITER) = action_next(ITER)))
576 log_bad_action(const union ofp_action *actions, size_t n_actions, size_t ofs,
579 if (!VLOG_DROP_WARN(&rl)) {
583 ds_put_hex_dump(&s, actions, n_actions * sizeof *actions, 0, false);
584 VLOG_WARN("bad action at offset %#zx (%s):\n%s",
585 ofs * sizeof *actions, ofperr_get_name(error), ds_cstr(&s));
591 ofpacts_from_openflow(const union ofp_action *in, size_t n_in,
593 enum ofperr (*ofpact_from_openflow)(
594 const union ofp_action *a, struct ofpbuf *out))
596 const union ofp_action *a;
599 ACTION_FOR_EACH (a, left, in, n_in) {
600 enum ofperr error = ofpact_from_openflow(a, out);
602 log_bad_action(in, n_in, a - in, error);
607 enum ofperr error = OFPERR_OFPBAC_BAD_LEN;
608 log_bad_action(in, n_in, n_in - left, error);
617 ofpacts_from_openflow10(const union ofp_action *in, size_t n_in,
620 return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow10);
624 ofpacts_pull_actions(struct ofpbuf *openflow, unsigned int actions_len,
625 struct ofpbuf *ofpacts,
626 enum ofperr (*translate)(const union ofp_action *actions,
628 struct ofpbuf *ofpacts))
630 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
631 const union ofp_action *actions;
634 ofpbuf_clear(ofpacts);
636 if (actions_len % OFP_ACTION_ALIGN != 0) {
637 VLOG_WARN_RL(&rl, "OpenFlow message actions length %u is not a "
638 "multiple of %d", actions_len, OFP_ACTION_ALIGN);
639 return OFPERR_OFPBRC_BAD_LEN;
642 actions = ofpbuf_try_pull(openflow, actions_len);
643 if (actions == NULL) {
644 VLOG_WARN_RL(&rl, "OpenFlow message actions length %u exceeds "
645 "remaining message length (%zu)",
646 actions_len, openflow->size);
647 return OFPERR_OFPBRC_BAD_LEN;
650 error = translate(actions, actions_len / OFP_ACTION_ALIGN, ofpacts);
652 ofpbuf_clear(ofpacts);
656 error = ofpacts_verify(ofpacts->data, ofpacts->size);
658 ofpbuf_clear(ofpacts);
663 /* Attempts to convert 'actions_len' bytes of OpenFlow 1.0 actions from the
664 * front of 'openflow' into ofpacts. On success, replaces any existing content
665 * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
666 * Returns 0 if successful, otherwise an OpenFlow error.
668 * The parsed actions are valid generically, but they may not be valid in a
669 * specific context. For example, port numbers up to OFPP_MAX are valid
670 * generically, but specific datapaths may only support port numbers in a
671 * smaller range. Use ofpacts_check() to additional check whether actions are
672 * valid in a specific context. */
674 ofpacts_pull_openflow10(struct ofpbuf *openflow, unsigned int actions_len,
675 struct ofpbuf *ofpacts)
677 return ofpacts_pull_actions(openflow, actions_len, ofpacts,
678 ofpacts_from_openflow10);
681 /* OpenFlow 1.1 actions. */
683 /* Parses 'a' to determine its type. On success stores the correct type into
684 * '*code' and returns 0. On failure returns an OFPERR_* error code and
685 * '*code' is indeterminate.
687 * The caller must have already verified that 'a''s length is potentially
688 * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
689 * ofp_action) and no longer than the amount of space allocated to 'a').
691 * This function verifies that 'a''s length is correct for the type of action
692 * that it represents. */
694 decode_openflow11_action(const union ofp_action *a,
695 enum ofputil_action_code *code)
700 case CONSTANT_HTONS(OFPAT11_EXPERIMENTER):
701 return decode_nxast_action(a, code);
703 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
704 case CONSTANT_HTONS(ENUM): \
705 len = ntohs(a->header.len); \
707 ? len >= sizeof(struct STRUCT) \
708 : len == sizeof(struct STRUCT)) { \
709 *code = OFPUTIL_##ENUM; \
712 return OFPERR_OFPBAC_BAD_LEN; \
715 #include "ofp-util.def"
718 return OFPERR_OFPBAC_BAD_TYPE;
723 output_from_openflow11(const struct ofp11_action_output *oao,
726 struct ofpact_output *output;
729 output = ofpact_put_OUTPUT(out);
730 output->max_len = ntohs(oao->max_len);
732 error = ofputil_port_from_ofp11(oao->port, &output->port);
737 return ofputil_check_output_port(output->port, OFPP_MAX);
741 ofpact_from_openflow11(const union ofp_action *a, struct ofpbuf *out)
743 enum ofputil_action_code code;
746 error = decode_openflow11_action(a, &code);
752 case OFPUTIL_ACTION_INVALID:
753 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
754 #include "ofp-util.def"
757 case OFPUTIL_OFPAT11_OUTPUT:
758 return output_from_openflow11((const struct ofp11_action_output *) a,
761 case OFPUTIL_OFPAT11_SET_VLAN_VID:
762 if (a->vlan_vid.vlan_vid & ~htons(0xfff)) {
763 return OFPERR_OFPBAC_BAD_ARGUMENT;
765 ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
768 case OFPUTIL_OFPAT11_SET_VLAN_PCP:
769 if (a->vlan_pcp.vlan_pcp & ~7) {
770 return OFPERR_OFPBAC_BAD_ARGUMENT;
772 ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp;
775 case OFPUTIL_OFPAT11_PUSH_VLAN:
776 if (((const struct ofp11_action_push *)a)->ethertype !=
777 htons(ETH_TYPE_VLAN_8021Q)) {
778 /* XXX 802.1AD(QinQ) isn't supported at the moment */
779 return OFPERR_OFPBAC_BAD_ARGUMENT;
781 ofpact_put_PUSH_VLAN(out);
784 case OFPUTIL_OFPAT11_POP_VLAN:
785 ofpact_put_STRIP_VLAN(out);
788 case OFPUTIL_OFPAT11_SET_QUEUE:
789 ofpact_put_SET_QUEUE(out)->queue_id =
790 ntohl(((const struct ofp11_action_set_queue *)a)->queue_id);
793 case OFPUTIL_OFPAT11_SET_DL_SRC:
794 memcpy(ofpact_put_SET_ETH_SRC(out)->mac,
795 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
798 case OFPUTIL_OFPAT11_SET_DL_DST:
799 memcpy(ofpact_put_SET_ETH_DST(out)->mac,
800 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
803 case OFPUTIL_OFPAT11_DEC_NW_TTL:
804 dec_ttl_from_openflow(out, code);
807 case OFPUTIL_OFPAT11_SET_NW_SRC:
808 ofpact_put_SET_IPV4_SRC(out)->ipv4 = a->nw_addr.nw_addr;
811 case OFPUTIL_OFPAT11_SET_NW_DST:
812 ofpact_put_SET_IPV4_DST(out)->ipv4 = a->nw_addr.nw_addr;
815 case OFPUTIL_OFPAT11_SET_NW_TOS:
816 if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) {
817 return OFPERR_OFPBAC_BAD_ARGUMENT;
819 ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos;
822 case OFPUTIL_OFPAT11_SET_TP_SRC:
823 ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port);
826 case OFPUTIL_OFPAT11_SET_TP_DST:
827 ofpact_put_SET_L4_DST_PORT(out)->port = ntohs(a->tp_port.tp_port);
830 case OFPUTIL_OFPAT12_SET_FIELD:
831 return nxm_reg_load_from_openflow12_set_field(
832 (const struct ofp12_action_set_field *)a, out);
834 case OFPUTIL_OFPAT11_SET_MPLS_TTL: {
835 struct ofp11_action_mpls_ttl *oamt = (struct ofp11_action_mpls_ttl *)a;
836 ofpact_put_SET_MPLS_TTL(out)->ttl = oamt->mpls_ttl;
840 case OFPUTIL_OFPAT11_DEC_MPLS_TTL:
841 ofpact_put_DEC_MPLS_TTL(out);
844 case OFPUTIL_OFPAT11_PUSH_MPLS: {
845 struct ofp11_action_push *oap = (struct ofp11_action_push *)a;
846 if (!eth_type_mpls(oap->ethertype)) {
847 return OFPERR_OFPBAC_BAD_ARGUMENT;
849 ofpact_put_PUSH_MPLS(out)->ethertype = oap->ethertype;
853 case OFPUTIL_OFPAT11_POP_MPLS: {
854 struct ofp11_action_pop_mpls *oapm = (struct ofp11_action_pop_mpls *)a;
855 if (eth_type_mpls(oapm->ethertype)) {
856 return OFPERR_OFPBAC_BAD_ARGUMENT;
858 ofpact_put_POP_MPLS(out)->ethertype = oapm->ethertype;
862 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
863 #include "ofp-util.def"
864 return ofpact_from_nxast(a, code, out);
871 ofpacts_from_openflow11(const union ofp_action *in, size_t n_in,
874 return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow11);
877 /* OpenFlow 1.1 instructions. */
879 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
880 static inline const struct STRUCT * \
881 instruction_get_##ENUM(const struct ofp11_instruction *inst)\
883 ovs_assert(inst->type == htons(ENUM)); \
884 return (struct STRUCT *)inst; \
888 instruction_init_##ENUM(struct STRUCT *s) \
890 memset(s, 0, sizeof *s); \
891 s->type = htons(ENUM); \
892 s->len = htons(sizeof *s); \
895 static inline struct STRUCT * \
896 instruction_put_##ENUM(struct ofpbuf *buf) \
898 struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
899 instruction_init_##ENUM(s); \
905 struct instruction_type_info {
906 enum ovs_instruction_type type;
910 static const struct instruction_type_info inst_info[] = {
911 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) {OVSINST_##ENUM, NAME},
917 ovs_instruction_name_from_type(enum ovs_instruction_type type)
919 return inst_info[type].name;
923 ovs_instruction_type_from_name(const char *name)
925 const struct instruction_type_info *p;
926 for (p = inst_info; p < &inst_info[ARRAY_SIZE(inst_info)]; p++) {
927 if (!strcasecmp(name, p->name)) {
934 enum ovs_instruction_type
935 ovs_instruction_type_from_ofpact_type(enum ofpact_type type)
939 return OVSINST_OFPIT13_METER;
940 case OFPACT_CLEAR_ACTIONS:
941 return OVSINST_OFPIT11_CLEAR_ACTIONS;
942 case OFPACT_WRITE_METADATA:
943 return OVSINST_OFPIT11_WRITE_METADATA;
944 case OFPACT_GOTO_TABLE:
945 return OVSINST_OFPIT11_GOTO_TABLE;
947 case OFPACT_CONTROLLER:
949 case OFPACT_OUTPUT_REG:
951 case OFPACT_SET_VLAN_VID:
952 case OFPACT_SET_VLAN_PCP:
953 case OFPACT_STRIP_VLAN:
954 case OFPACT_PUSH_VLAN:
955 case OFPACT_SET_ETH_SRC:
956 case OFPACT_SET_ETH_DST:
957 case OFPACT_SET_IPV4_SRC:
958 case OFPACT_SET_IPV4_DST:
959 case OFPACT_SET_IPV4_DSCP:
960 case OFPACT_SET_L4_SRC_PORT:
961 case OFPACT_SET_L4_DST_PORT:
962 case OFPACT_REG_MOVE:
963 case OFPACT_REG_LOAD:
964 case OFPACT_STACK_PUSH:
965 case OFPACT_STACK_POP:
967 case OFPACT_SET_MPLS_TTL:
968 case OFPACT_DEC_MPLS_TTL:
969 case OFPACT_PUSH_MPLS:
970 case OFPACT_POP_MPLS:
971 case OFPACT_SET_TUNNEL:
972 case OFPACT_SET_QUEUE:
973 case OFPACT_POP_QUEUE:
974 case OFPACT_FIN_TIMEOUT:
975 case OFPACT_RESUBMIT:
977 case OFPACT_MULTIPATH:
982 return OVSINST_OFPIT11_APPLY_ACTIONS;
986 static inline struct ofp11_instruction *
987 instruction_next(const struct ofp11_instruction *inst)
989 return ((struct ofp11_instruction *) (void *)
990 ((uint8_t *) inst + ntohs(inst->len)));
994 instruction_is_valid(const struct ofp11_instruction *inst,
995 size_t n_instructions)
997 uint16_t len = ntohs(inst->len);
998 return (!(len % OFP11_INSTRUCTION_ALIGN)
999 && len >= sizeof *inst
1000 && len / sizeof *inst <= n_instructions);
1003 /* This macro is careful to check for instructions with bad lengths. */
1004 #define INSTRUCTION_FOR_EACH(ITER, LEFT, INSTRUCTIONS, N_INSTRUCTIONS) \
1005 for ((ITER) = (INSTRUCTIONS), (LEFT) = (N_INSTRUCTIONS); \
1006 (LEFT) > 0 && instruction_is_valid(ITER, LEFT); \
1007 ((LEFT) -= (ntohs((ITER)->len) \
1008 / sizeof(struct ofp11_instruction)), \
1009 (ITER) = instruction_next(ITER)))
1012 decode_openflow11_instruction(const struct ofp11_instruction *inst,
1013 enum ovs_instruction_type *type)
1015 uint16_t len = ntohs(inst->len);
1017 switch (inst->type) {
1018 case CONSTANT_HTONS(OFPIT11_EXPERIMENTER):
1019 return OFPERR_OFPBIC_BAD_EXPERIMENTER;
1021 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
1022 case CONSTANT_HTONS(ENUM): \
1024 ? len >= sizeof(struct STRUCT) \
1025 : len == sizeof(struct STRUCT)) { \
1026 *type = OVSINST_##ENUM; \
1029 return OFPERR_OFPBIC_BAD_LEN; \
1035 return OFPERR_OFPBIC_UNKNOWN_INST;
1040 decode_openflow11_instructions(const struct ofp11_instruction insts[],
1042 const struct ofp11_instruction *out[])
1044 const struct ofp11_instruction *inst;
1047 memset(out, 0, N_OVS_INSTRUCTIONS * sizeof *out);
1048 INSTRUCTION_FOR_EACH (inst, left, insts, n_insts) {
1049 enum ovs_instruction_type type;
1052 error = decode_openflow11_instruction(inst, &type);
1058 return OFPERR_ONFBIC_DUP_INSTRUCTION;
1064 VLOG_WARN_RL(&rl, "bad instruction format at offset %zu",
1065 (n_insts - left) * sizeof *inst);
1066 return OFPERR_OFPBIC_BAD_LEN;
1072 get_actions_from_instruction(const struct ofp11_instruction *inst,
1073 const union ofp_action **actions,
1076 *actions = (const union ofp_action *) (inst + 1);
1077 *n_actions = (ntohs(inst->len) - sizeof *inst) / OFP11_INSTRUCTION_ALIGN;
1080 /* Attempts to convert 'actions_len' bytes of OpenFlow 1.1 actions from the
1081 * front of 'openflow' into ofpacts. On success, replaces any existing content
1082 * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
1083 * Returns 0 if successful, otherwise an OpenFlow error.
1085 * In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in
1086 * instructions, so you should call ofpacts_pull_openflow11_instructions()
1087 * instead of this function.
1089 * The parsed actions are valid generically, but they may not be valid in a
1090 * specific context. For example, port numbers up to OFPP_MAX are valid
1091 * generically, but specific datapaths may only support port numbers in a
1092 * smaller range. Use ofpacts_check() to additional check whether actions are
1093 * valid in a specific context. */
1095 ofpacts_pull_openflow11_actions(struct ofpbuf *openflow,
1096 unsigned int actions_len,
1097 struct ofpbuf *ofpacts)
1099 return ofpacts_pull_actions(openflow, actions_len, ofpacts,
1100 ofpacts_from_openflow11);
1104 ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
1105 unsigned int instructions_len,
1106 struct ofpbuf *ofpacts)
1108 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1109 const struct ofp11_instruction *instructions;
1110 const struct ofp11_instruction *insts[N_OVS_INSTRUCTIONS];
1113 ofpbuf_clear(ofpacts);
1115 if (instructions_len % OFP11_INSTRUCTION_ALIGN != 0) {
1116 VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u is not a "
1118 instructions_len, OFP11_INSTRUCTION_ALIGN);
1119 error = OFPERR_OFPBIC_BAD_LEN;
1123 instructions = ofpbuf_try_pull(openflow, instructions_len);
1124 if (instructions == NULL) {
1125 VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u exceeds "
1126 "remaining message length (%zu)",
1127 instructions_len, openflow->size);
1128 error = OFPERR_OFPBIC_BAD_LEN;
1132 error = decode_openflow11_instructions(
1133 instructions, instructions_len / OFP11_INSTRUCTION_ALIGN,
1139 if (insts[OVSINST_OFPIT13_METER]) {
1140 const struct ofp13_instruction_meter *oim;
1141 struct ofpact_meter *om;
1143 oim = (const struct ofp13_instruction_meter *)
1144 insts[OVSINST_OFPIT13_METER];
1146 om = ofpact_put_METER(ofpacts);
1147 om->meter_id = ntohl(oim->meter_id);
1149 if (insts[OVSINST_OFPIT11_APPLY_ACTIONS]) {
1150 const union ofp_action *actions;
1153 get_actions_from_instruction(insts[OVSINST_OFPIT11_APPLY_ACTIONS],
1154 &actions, &n_actions);
1155 error = ofpacts_from_openflow11(actions, n_actions, ofpacts);
1160 if (insts[OVSINST_OFPIT11_CLEAR_ACTIONS]) {
1161 instruction_get_OFPIT11_CLEAR_ACTIONS(
1162 insts[OVSINST_OFPIT11_CLEAR_ACTIONS]);
1163 ofpact_put_CLEAR_ACTIONS(ofpacts);
1165 /* XXX Write-Actions */
1166 if (insts[OVSINST_OFPIT11_WRITE_METADATA]) {
1167 const struct ofp11_instruction_write_metadata *oiwm;
1168 struct ofpact_metadata *om;
1170 oiwm = (const struct ofp11_instruction_write_metadata *)
1171 insts[OVSINST_OFPIT11_WRITE_METADATA];
1173 om = ofpact_put_WRITE_METADATA(ofpacts);
1174 om->metadata = oiwm->metadata;
1175 om->mask = oiwm->metadata_mask;
1177 if (insts[OVSINST_OFPIT11_GOTO_TABLE]) {
1178 const struct ofp11_instruction_goto_table *oigt;
1179 struct ofpact_goto_table *ogt;
1181 oigt = instruction_get_OFPIT11_GOTO_TABLE(
1182 insts[OVSINST_OFPIT11_GOTO_TABLE]);
1183 ogt = ofpact_put_GOTO_TABLE(ofpacts);
1184 ogt->table_id = oigt->table_id;
1187 if (insts[OVSINST_OFPIT11_WRITE_ACTIONS]) {
1188 error = OFPERR_OFPBIC_UNSUP_INST;
1192 error = ofpacts_verify(ofpacts->data, ofpacts->size);
1195 ofpbuf_clear(ofpacts);
1200 /* May modify flow->dl_type, caller must restore it. */
1202 ofpact_check__(const struct ofpact *a, struct flow *flow, ofp_port_t max_ports,
1205 const struct ofpact_enqueue *enqueue;
1209 return ofputil_check_output_port(ofpact_get_OUTPUT(a)->port,
1212 case OFPACT_CONTROLLER:
1215 case OFPACT_ENQUEUE:
1216 enqueue = ofpact_get_ENQUEUE(a);
1217 if (ofp_to_u16(enqueue->port) >= ofp_to_u16(max_ports)
1218 && enqueue->port != OFPP_IN_PORT
1219 && enqueue->port != OFPP_LOCAL) {
1220 return OFPERR_OFPBAC_BAD_OUT_PORT;
1224 case OFPACT_OUTPUT_REG:
1225 return mf_check_src(&ofpact_get_OUTPUT_REG(a)->src, flow);
1228 return bundle_check(ofpact_get_BUNDLE(a), max_ports, flow);
1230 case OFPACT_SET_VLAN_VID:
1231 case OFPACT_SET_VLAN_PCP:
1232 case OFPACT_STRIP_VLAN:
1233 case OFPACT_PUSH_VLAN:
1234 case OFPACT_SET_ETH_SRC:
1235 case OFPACT_SET_ETH_DST:
1236 case OFPACT_SET_IPV4_SRC:
1237 case OFPACT_SET_IPV4_DST:
1238 case OFPACT_SET_IPV4_DSCP:
1239 case OFPACT_SET_L4_SRC_PORT:
1240 case OFPACT_SET_L4_DST_PORT:
1243 case OFPACT_REG_MOVE:
1244 return nxm_reg_move_check(ofpact_get_REG_MOVE(a), flow);
1246 case OFPACT_REG_LOAD:
1247 return nxm_reg_load_check(ofpact_get_REG_LOAD(a), flow);
1249 case OFPACT_STACK_PUSH:
1250 return nxm_stack_push_check(ofpact_get_STACK_PUSH(a), flow);
1252 case OFPACT_STACK_POP:
1253 return nxm_stack_pop_check(ofpact_get_STACK_POP(a), flow);
1255 case OFPACT_DEC_TTL:
1256 case OFPACT_SET_MPLS_TTL:
1257 case OFPACT_DEC_MPLS_TTL:
1258 case OFPACT_SET_TUNNEL:
1259 case OFPACT_SET_QUEUE:
1260 case OFPACT_POP_QUEUE:
1261 case OFPACT_FIN_TIMEOUT:
1262 case OFPACT_RESUBMIT:
1266 return learn_check(ofpact_get_LEARN(a), flow);
1268 case OFPACT_MULTIPATH:
1269 return multipath_check(ofpact_get_MULTIPATH(a), flow);
1275 case OFPACT_PUSH_MPLS:
1276 flow->dl_type = ofpact_get_PUSH_MPLS(a)->ethertype;
1279 case OFPACT_POP_MPLS:
1280 flow->dl_type = ofpact_get_POP_MPLS(a)->ethertype;
1286 case OFPACT_CLEAR_ACTIONS:
1287 case OFPACT_WRITE_METADATA:
1290 case OFPACT_METER: {
1291 uint32_t mid = ofpact_get_METER(a)->meter_id;
1292 if (mid == 0 || mid > OFPM13_MAX) {
1293 return OFPERR_OFPMMFC_INVALID_METER;
1298 case OFPACT_GOTO_TABLE:
1299 if (ofpact_get_GOTO_TABLE(a)->table_id <= table_id) {
1300 return OFPERR_OFPBRC_BAD_TABLE_ID;
1309 /* Checks that the 'ofpacts_len' bytes of actions in 'ofpacts' are
1310 * appropriate for a packet with the prerequisites satisfied by 'flow' in a
1311 * switch with no more than 'max_ports' ports.
1313 * May temporarily modify 'flow', but restores the changes before returning. */
1315 ofpacts_check(const struct ofpact ofpacts[], size_t ofpacts_len,
1316 struct flow *flow, ofp_port_t max_ports, uint8_t table_id)
1318 const struct ofpact *a;
1319 ovs_be16 dl_type = flow->dl_type;
1320 enum ofperr error = 0;
1322 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1323 error = ofpact_check__(a, flow, max_ports, table_id);
1328 flow->dl_type = dl_type; /* Restore. */
1332 /* Verifies that the 'ofpacts_len' bytes of actions in 'ofpacts' are
1333 * in the appropriate order as defined by the OpenFlow spec. */
1335 ofpacts_verify(const struct ofpact ofpacts[], size_t ofpacts_len)
1337 const struct ofpact *a;
1338 enum ovs_instruction_type inst;
1340 inst = OVSINST_OFPIT11_APPLY_ACTIONS;
1341 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1342 enum ovs_instruction_type next;
1344 next = ovs_instruction_type_from_ofpact_type(a->type);
1345 if (inst != OVSINST_OFPIT11_APPLY_ACTIONS && next <= inst) {
1346 const char *name = ovs_instruction_name_from_type(inst);
1347 const char *next_name = ovs_instruction_name_from_type(next);
1350 VLOG_WARN("duplicate %s instruction not allowed, for OpenFlow "
1351 "1.1+ compatibility", name);
1353 VLOG_WARN("invalid instruction ordering: %s must appear "
1354 "before %s, for OpenFlow 1.1+ compatibility",
1357 return OFPERR_OFPBAC_UNSUPPORTED_ORDER;
1366 /* Converting ofpacts to Nicira OpenFlow extensions. */
1369 ofpact_output_reg_to_nxast(const struct ofpact_output_reg *output_reg,
1372 struct nx_action_output_reg *naor = ofputil_put_NXAST_OUTPUT_REG(out);
1374 naor->ofs_nbits = nxm_encode_ofs_nbits(output_reg->src.ofs,
1375 output_reg->src.n_bits);
1376 naor->src = htonl(output_reg->src.field->nxm_header);
1377 naor->max_len = htons(output_reg->max_len);
1381 ofpact_resubmit_to_nxast(const struct ofpact_resubmit *resubmit,
1384 struct nx_action_resubmit *nar;
1386 if (resubmit->table_id == 0xff
1387 && resubmit->ofpact.compat != OFPUTIL_NXAST_RESUBMIT_TABLE) {
1388 nar = ofputil_put_NXAST_RESUBMIT(out);
1390 nar = ofputil_put_NXAST_RESUBMIT_TABLE(out);
1391 nar->table = resubmit->table_id;
1393 nar->in_port = htons(ofp_to_u16(resubmit->in_port));
1397 ofpact_set_tunnel_to_nxast(const struct ofpact_tunnel *tunnel,
1400 uint64_t tun_id = tunnel->tun_id;
1402 if (tun_id <= UINT32_MAX
1403 && tunnel->ofpact.compat != OFPUTIL_NXAST_SET_TUNNEL64) {
1404 ofputil_put_NXAST_SET_TUNNEL(out)->tun_id = htonl(tun_id);
1406 ofputil_put_NXAST_SET_TUNNEL64(out)->tun_id = htonll(tun_id);
1411 ofpact_write_metadata_to_nxast(const struct ofpact_metadata *om,
1414 struct nx_action_write_metadata *nawm;
1416 nawm = ofputil_put_NXAST_WRITE_METADATA(out);
1417 nawm->metadata = om->metadata;
1418 nawm->mask = om->mask;
1422 ofpact_note_to_nxast(const struct ofpact_note *note, struct ofpbuf *out)
1424 size_t start_ofs = out->size;
1425 struct nx_action_note *nan;
1426 unsigned int remainder;
1429 nan = ofputil_put_NXAST_NOTE(out);
1430 out->size -= sizeof nan->note;
1432 ofpbuf_put(out, note->data, note->length);
1434 len = out->size - start_ofs;
1435 remainder = len % OFP_ACTION_ALIGN;
1437 ofpbuf_put_zeros(out, OFP_ACTION_ALIGN - remainder);
1439 nan = (struct nx_action_note *)((char *)out->data + start_ofs);
1440 nan->len = htons(out->size - start_ofs);
1444 ofpact_controller_to_nxast(const struct ofpact_controller *oc,
1447 struct nx_action_controller *nac;
1449 nac = ofputil_put_NXAST_CONTROLLER(out);
1450 nac->max_len = htons(oc->max_len);
1451 nac->controller_id = htons(oc->controller_id);
1452 nac->reason = oc->reason;
1456 ofpact_dec_ttl_to_nxast(const struct ofpact_cnt_ids *oc_ids,
1459 if (oc_ids->ofpact.compat == OFPUTIL_NXAST_DEC_TTL) {
1460 ofputil_put_NXAST_DEC_TTL(out);
1462 struct nx_action_cnt_ids *nac_ids =
1463 ofputil_put_NXAST_DEC_TTL_CNT_IDS(out);
1464 int ids_len = ROUND_UP(2 * oc_ids->n_controllers, OFP_ACTION_ALIGN);
1468 nac_ids->len = htons(ntohs(nac_ids->len) + ids_len);
1469 nac_ids->n_controllers = htons(oc_ids->n_controllers);
1471 ids = ofpbuf_put_zeros(out, ids_len);
1472 for (i = 0; i < oc_ids->n_controllers; i++) {
1473 ids[i] = htons(oc_ids->cnt_ids[i]);
1479 ofpact_fin_timeout_to_nxast(const struct ofpact_fin_timeout *fin_timeout,
1482 struct nx_action_fin_timeout *naft = ofputil_put_NXAST_FIN_TIMEOUT(out);
1483 naft->fin_idle_timeout = htons(fin_timeout->fin_idle_timeout);
1484 naft->fin_hard_timeout = htons(fin_timeout->fin_hard_timeout);
1488 ofpact_sample_to_nxast(const struct ofpact_sample *os,
1491 struct nx_action_sample *nas;
1493 nas = ofputil_put_NXAST_SAMPLE(out);
1494 nas->probability = htons(os->probability);
1495 nas->collector_set_id = htonl(os->collector_set_id);
1496 nas->obs_domain_id = htonl(os->obs_domain_id);
1497 nas->obs_point_id = htonl(os->obs_point_id);
1501 ofpact_to_nxast(const struct ofpact *a, struct ofpbuf *out)
1504 case OFPACT_CONTROLLER:
1505 ofpact_controller_to_nxast(ofpact_get_CONTROLLER(a), out);
1508 case OFPACT_OUTPUT_REG:
1509 ofpact_output_reg_to_nxast(ofpact_get_OUTPUT_REG(a), out);
1513 bundle_to_nxast(ofpact_get_BUNDLE(a), out);
1516 case OFPACT_REG_MOVE:
1517 nxm_reg_move_to_nxast(ofpact_get_REG_MOVE(a), out);
1520 case OFPACT_REG_LOAD:
1521 nxm_reg_load_to_nxast(ofpact_get_REG_LOAD(a), out);
1524 case OFPACT_STACK_PUSH:
1525 nxm_stack_push_to_nxast(ofpact_get_STACK_PUSH(a), out);
1528 case OFPACT_STACK_POP:
1529 nxm_stack_pop_to_nxast(ofpact_get_STACK_POP(a), out);
1532 case OFPACT_DEC_TTL:
1533 ofpact_dec_ttl_to_nxast(ofpact_get_DEC_TTL(a), out);
1536 case OFPACT_SET_MPLS_TTL:
1537 ofputil_put_NXAST_SET_MPLS_TTL(out)->ttl
1538 = ofpact_get_SET_MPLS_TTL(a)->ttl;
1541 case OFPACT_DEC_MPLS_TTL:
1542 ofputil_put_NXAST_DEC_MPLS_TTL(out);
1545 case OFPACT_SET_TUNNEL:
1546 ofpact_set_tunnel_to_nxast(ofpact_get_SET_TUNNEL(a), out);
1549 case OFPACT_WRITE_METADATA:
1550 ofpact_write_metadata_to_nxast(ofpact_get_WRITE_METADATA(a), out);
1553 case OFPACT_SET_QUEUE:
1554 ofputil_put_NXAST_SET_QUEUE(out)->queue_id
1555 = htonl(ofpact_get_SET_QUEUE(a)->queue_id);
1558 case OFPACT_POP_QUEUE:
1559 ofputil_put_NXAST_POP_QUEUE(out);
1562 case OFPACT_FIN_TIMEOUT:
1563 ofpact_fin_timeout_to_nxast(ofpact_get_FIN_TIMEOUT(a), out);
1566 case OFPACT_RESUBMIT:
1567 ofpact_resubmit_to_nxast(ofpact_get_RESUBMIT(a), out);
1571 learn_to_nxast(ofpact_get_LEARN(a), out);
1574 case OFPACT_MULTIPATH:
1575 multipath_to_nxast(ofpact_get_MULTIPATH(a), out);
1579 ofpact_note_to_nxast(ofpact_get_NOTE(a), out);
1583 ofputil_put_NXAST_EXIT(out);
1586 case OFPACT_PUSH_MPLS:
1587 ofputil_put_NXAST_PUSH_MPLS(out)->ethertype =
1588 ofpact_get_PUSH_MPLS(a)->ethertype;
1591 case OFPACT_POP_MPLS:
1592 ofputil_put_NXAST_POP_MPLS(out)->ethertype =
1593 ofpact_get_POP_MPLS(a)->ethertype;
1597 ofpact_sample_to_nxast(ofpact_get_SAMPLE(a), out);
1601 case OFPACT_ENQUEUE:
1602 case OFPACT_SET_VLAN_VID:
1603 case OFPACT_SET_VLAN_PCP:
1604 case OFPACT_STRIP_VLAN:
1605 case OFPACT_PUSH_VLAN:
1606 case OFPACT_SET_ETH_SRC:
1607 case OFPACT_SET_ETH_DST:
1608 case OFPACT_SET_IPV4_SRC:
1609 case OFPACT_SET_IPV4_DST:
1610 case OFPACT_SET_IPV4_DSCP:
1611 case OFPACT_SET_L4_SRC_PORT:
1612 case OFPACT_SET_L4_DST_PORT:
1613 case OFPACT_CLEAR_ACTIONS:
1614 case OFPACT_GOTO_TABLE:
1620 /* Converting ofpacts to OpenFlow 1.0. */
1623 ofpact_output_to_openflow10(const struct ofpact_output *output,
1626 struct ofp10_action_output *oao;
1628 oao = ofputil_put_OFPAT10_OUTPUT(out);
1629 oao->port = htons(ofp_to_u16(output->port));
1630 oao->max_len = htons(output->max_len);
1634 ofpact_enqueue_to_openflow10(const struct ofpact_enqueue *enqueue,
1637 struct ofp10_action_enqueue *oae;
1639 oae = ofputil_put_OFPAT10_ENQUEUE(out);
1640 oae->port = htons(ofp_to_u16(enqueue->port));
1641 oae->queue_id = htonl(enqueue->queue);
1645 ofpact_to_openflow10(const struct ofpact *a, struct ofpbuf *out)
1649 ofpact_output_to_openflow10(ofpact_get_OUTPUT(a), out);
1652 case OFPACT_ENQUEUE:
1653 ofpact_enqueue_to_openflow10(ofpact_get_ENQUEUE(a), out);
1656 case OFPACT_SET_VLAN_VID:
1657 ofputil_put_OFPAT10_SET_VLAN_VID(out)->vlan_vid
1658 = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid);
1661 case OFPACT_SET_VLAN_PCP:
1662 ofputil_put_OFPAT10_SET_VLAN_PCP(out)->vlan_pcp
1663 = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp;
1666 case OFPACT_STRIP_VLAN:
1667 ofputil_put_OFPAT10_STRIP_VLAN(out);
1670 case OFPACT_SET_ETH_SRC:
1671 memcpy(ofputil_put_OFPAT10_SET_DL_SRC(out)->dl_addr,
1672 ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN);
1675 case OFPACT_SET_ETH_DST:
1676 memcpy(ofputil_put_OFPAT10_SET_DL_DST(out)->dl_addr,
1677 ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN);
1680 case OFPACT_SET_IPV4_SRC:
1681 ofputil_put_OFPAT10_SET_NW_SRC(out)->nw_addr
1682 = ofpact_get_SET_IPV4_SRC(a)->ipv4;
1685 case OFPACT_SET_IPV4_DST:
1686 ofputil_put_OFPAT10_SET_NW_DST(out)->nw_addr
1687 = ofpact_get_SET_IPV4_DST(a)->ipv4;
1690 case OFPACT_SET_IPV4_DSCP:
1691 ofputil_put_OFPAT10_SET_NW_TOS(out)->nw_tos
1692 = ofpact_get_SET_IPV4_DSCP(a)->dscp;
1695 case OFPACT_SET_L4_SRC_PORT:
1696 ofputil_put_OFPAT10_SET_TP_SRC(out)->tp_port
1697 = htons(ofpact_get_SET_L4_SRC_PORT(a)->port);
1700 case OFPACT_SET_L4_DST_PORT:
1701 ofputil_put_OFPAT10_SET_TP_DST(out)->tp_port
1702 = htons(ofpact_get_SET_L4_DST_PORT(a)->port);
1705 case OFPACT_PUSH_VLAN:
1706 case OFPACT_CLEAR_ACTIONS:
1707 case OFPACT_GOTO_TABLE:
1712 case OFPACT_CONTROLLER:
1713 case OFPACT_OUTPUT_REG:
1715 case OFPACT_REG_MOVE:
1716 case OFPACT_REG_LOAD:
1717 case OFPACT_STACK_PUSH:
1718 case OFPACT_STACK_POP:
1719 case OFPACT_DEC_TTL:
1720 case OFPACT_SET_MPLS_TTL:
1721 case OFPACT_DEC_MPLS_TTL:
1722 case OFPACT_SET_TUNNEL:
1723 case OFPACT_WRITE_METADATA:
1724 case OFPACT_SET_QUEUE:
1725 case OFPACT_POP_QUEUE:
1726 case OFPACT_FIN_TIMEOUT:
1727 case OFPACT_RESUBMIT:
1729 case OFPACT_MULTIPATH:
1732 case OFPACT_PUSH_MPLS:
1733 case OFPACT_POP_MPLS:
1735 ofpact_to_nxast(a, out);
1740 /* Converts the 'ofpacts_len' bytes of ofpacts in 'ofpacts' into OpenFlow 1.0
1741 * actions in 'openflow', appending the actions to any existing data in
1744 ofpacts_put_openflow10(const struct ofpact ofpacts[], size_t ofpacts_len,
1745 struct ofpbuf *openflow)
1747 const struct ofpact *a;
1749 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1750 ofpact_to_openflow10(a, openflow);
1754 /* Converting ofpacts to OpenFlow 1.1. */
1757 ofpact_output_to_openflow11(const struct ofpact_output *output,
1760 struct ofp11_action_output *oao;
1762 oao = ofputil_put_OFPAT11_OUTPUT(out);
1763 oao->port = ofputil_port_to_ofp11(output->port);
1764 oao->max_len = htons(output->max_len);
1768 ofpact_dec_ttl_to_openflow11(const struct ofpact_cnt_ids *dec_ttl,
1771 if (dec_ttl->n_controllers == 1 && dec_ttl->cnt_ids[0] == 0
1772 && (!dec_ttl->ofpact.compat ||
1773 dec_ttl->ofpact.compat == OFPUTIL_OFPAT11_DEC_NW_TTL)) {
1774 ofputil_put_OFPAT11_DEC_NW_TTL(out);
1776 ofpact_dec_ttl_to_nxast(dec_ttl, out);
1781 ofpact_to_openflow11(const struct ofpact *a, struct ofpbuf *out)
1785 return ofpact_output_to_openflow11(ofpact_get_OUTPUT(a), out);
1787 case OFPACT_ENQUEUE:
1791 case OFPACT_SET_VLAN_VID:
1792 ofputil_put_OFPAT11_SET_VLAN_VID(out)->vlan_vid
1793 = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid);
1796 case OFPACT_SET_VLAN_PCP:
1797 ofputil_put_OFPAT11_SET_VLAN_PCP(out)->vlan_pcp
1798 = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp;
1801 case OFPACT_STRIP_VLAN:
1802 ofputil_put_OFPAT11_POP_VLAN(out);
1805 case OFPACT_PUSH_VLAN:
1806 /* XXX ETH_TYPE_VLAN_8021AD case */
1807 ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype =
1808 htons(ETH_TYPE_VLAN_8021Q);
1811 case OFPACT_SET_QUEUE:
1812 ofputil_put_OFPAT11_SET_QUEUE(out)->queue_id
1813 = htonl(ofpact_get_SET_QUEUE(a)->queue_id);
1816 case OFPACT_SET_ETH_SRC:
1817 memcpy(ofputil_put_OFPAT11_SET_DL_SRC(out)->dl_addr,
1818 ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN);
1821 case OFPACT_SET_ETH_DST:
1822 memcpy(ofputil_put_OFPAT11_SET_DL_DST(out)->dl_addr,
1823 ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN);
1826 case OFPACT_SET_IPV4_SRC:
1827 ofputil_put_OFPAT11_SET_NW_SRC(out)->nw_addr
1828 = ofpact_get_SET_IPV4_SRC(a)->ipv4;
1831 case OFPACT_SET_IPV4_DST:
1832 ofputil_put_OFPAT11_SET_NW_DST(out)->nw_addr
1833 = ofpact_get_SET_IPV4_DST(a)->ipv4;
1836 case OFPACT_SET_IPV4_DSCP:
1837 ofputil_put_OFPAT11_SET_NW_TOS(out)->nw_tos
1838 = ofpact_get_SET_IPV4_DSCP(a)->dscp;
1841 case OFPACT_SET_L4_SRC_PORT:
1842 ofputil_put_OFPAT11_SET_TP_SRC(out)->tp_port
1843 = htons(ofpact_get_SET_L4_SRC_PORT(a)->port);
1846 case OFPACT_SET_L4_DST_PORT:
1847 ofputil_put_OFPAT11_SET_TP_DST(out)->tp_port
1848 = htons(ofpact_get_SET_L4_DST_PORT(a)->port);
1851 case OFPACT_DEC_TTL:
1852 ofpact_dec_ttl_to_openflow11(ofpact_get_DEC_TTL(a), out);
1855 case OFPACT_SET_MPLS_TTL:
1856 ofputil_put_OFPAT11_SET_MPLS_TTL(out)->mpls_ttl
1857 = ofpact_get_SET_MPLS_TTL(a)->ttl;
1860 case OFPACT_DEC_MPLS_TTL:
1861 ofputil_put_OFPAT11_DEC_MPLS_TTL(out);
1864 case OFPACT_WRITE_METADATA:
1865 /* OpenFlow 1.1 uses OFPIT_WRITE_METADATA to express this action. */
1868 case OFPACT_PUSH_MPLS:
1869 ofputil_put_OFPAT11_PUSH_MPLS(out)->ethertype =
1870 ofpact_get_PUSH_MPLS(a)->ethertype;
1873 case OFPACT_POP_MPLS:
1874 ofputil_put_OFPAT11_POP_MPLS(out)->ethertype =
1875 ofpact_get_POP_MPLS(a)->ethertype;
1879 case OFPACT_CLEAR_ACTIONS:
1880 case OFPACT_GOTO_TABLE:
1884 case OFPACT_CONTROLLER:
1885 case OFPACT_OUTPUT_REG:
1887 case OFPACT_REG_MOVE:
1888 case OFPACT_REG_LOAD:
1889 case OFPACT_STACK_PUSH:
1890 case OFPACT_STACK_POP:
1891 case OFPACT_SET_TUNNEL:
1892 case OFPACT_POP_QUEUE:
1893 case OFPACT_FIN_TIMEOUT:
1894 case OFPACT_RESUBMIT:
1896 case OFPACT_MULTIPATH:
1900 ofpact_to_nxast(a, out);
1905 /* Converts the ofpacts in 'ofpacts' (terminated by OFPACT_END) into OpenFlow
1906 * 1.1 actions in 'openflow', appending the actions to any existing data in
1909 ofpacts_put_openflow11_actions(const struct ofpact ofpacts[],
1910 size_t ofpacts_len, struct ofpbuf *openflow)
1912 const struct ofpact *a;
1913 size_t start_size = openflow->size;
1915 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1916 ofpact_to_openflow11(a, openflow);
1919 return openflow->size - start_size;
1923 ofpacts_update_instruction_actions(struct ofpbuf *openflow, size_t ofs)
1925 struct ofp11_instruction_actions *oia;
1927 /* Update the instruction's length (or, if it's empty, delete it). */
1928 oia = ofpbuf_at_assert(openflow, ofs, sizeof *oia);
1929 if (openflow->size > ofs + sizeof *oia) {
1930 oia->len = htons(openflow->size - ofs);
1932 openflow->size = ofs;
1937 ofpacts_put_openflow11_instructions(const struct ofpact ofpacts[],
1939 struct ofpbuf *openflow)
1941 const struct ofpact *a;
1943 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1944 switch (ovs_instruction_type_from_ofpact_type(a->type)) {
1945 case OVSINST_OFPIT11_CLEAR_ACTIONS:
1946 instruction_put_OFPIT11_CLEAR_ACTIONS(openflow);
1949 case OVSINST_OFPIT11_GOTO_TABLE: {
1950 struct ofp11_instruction_goto_table *oigt;
1951 oigt = instruction_put_OFPIT11_GOTO_TABLE(openflow);
1952 oigt->table_id = ofpact_get_GOTO_TABLE(a)->table_id;
1953 memset(oigt->pad, 0, sizeof oigt->pad);
1957 case OVSINST_OFPIT11_WRITE_METADATA: {
1958 const struct ofpact_metadata *om;
1959 struct ofp11_instruction_write_metadata *oiwm;
1961 om = ofpact_get_WRITE_METADATA(a);
1962 oiwm = instruction_put_OFPIT11_WRITE_METADATA(openflow);
1963 oiwm->metadata = om->metadata;
1964 oiwm->metadata_mask = om->mask;
1968 case OVSINST_OFPIT13_METER: {
1969 const struct ofpact_meter *om;
1970 struct ofp13_instruction_meter *oim;
1972 om = ofpact_get_METER(a);
1973 oim = instruction_put_OFPIT13_METER(openflow);
1974 oim->meter_id = htonl(om->meter_id);
1978 case OVSINST_OFPIT11_APPLY_ACTIONS: {
1979 const size_t ofs = openflow->size;
1980 const size_t ofpacts_len_left =
1981 (uint8_t*)ofpact_end(ofpacts, ofpacts_len) - (uint8_t*)a;
1982 const struct ofpact *action;
1983 const struct ofpact *processed = a;
1985 instruction_put_OFPIT11_APPLY_ACTIONS(openflow);
1986 OFPACT_FOR_EACH(action, a, ofpacts_len_left) {
1987 if (ovs_instruction_type_from_ofpact_type(action->type)
1988 != OVSINST_OFPIT11_APPLY_ACTIONS) {
1991 ofpact_to_openflow11(action, openflow);
1994 ofpacts_update_instruction_actions(openflow, ofs);
1999 case OVSINST_OFPIT11_WRITE_ACTIONS:
2005 /* Returns true if 'action' outputs to 'port', false otherwise. */
2007 ofpact_outputs_to_port(const struct ofpact *ofpact, ofp_port_t port)
2009 switch (ofpact->type) {
2011 return ofpact_get_OUTPUT(ofpact)->port == port;
2012 case OFPACT_ENQUEUE:
2013 return ofpact_get_ENQUEUE(ofpact)->port == port;
2014 case OFPACT_CONTROLLER:
2015 return port == OFPP_CONTROLLER;
2017 case OFPACT_OUTPUT_REG:
2019 case OFPACT_SET_VLAN_VID:
2020 case OFPACT_SET_VLAN_PCP:
2021 case OFPACT_STRIP_VLAN:
2022 case OFPACT_PUSH_VLAN:
2023 case OFPACT_SET_ETH_SRC:
2024 case OFPACT_SET_ETH_DST:
2025 case OFPACT_SET_IPV4_SRC:
2026 case OFPACT_SET_IPV4_DST:
2027 case OFPACT_SET_IPV4_DSCP:
2028 case OFPACT_SET_L4_SRC_PORT:
2029 case OFPACT_SET_L4_DST_PORT:
2030 case OFPACT_REG_MOVE:
2031 case OFPACT_REG_LOAD:
2032 case OFPACT_STACK_PUSH:
2033 case OFPACT_STACK_POP:
2034 case OFPACT_DEC_TTL:
2035 case OFPACT_SET_MPLS_TTL:
2036 case OFPACT_DEC_MPLS_TTL:
2037 case OFPACT_SET_TUNNEL:
2038 case OFPACT_WRITE_METADATA:
2039 case OFPACT_SET_QUEUE:
2040 case OFPACT_POP_QUEUE:
2041 case OFPACT_FIN_TIMEOUT:
2042 case OFPACT_RESUBMIT:
2044 case OFPACT_MULTIPATH:
2047 case OFPACT_PUSH_MPLS:
2048 case OFPACT_POP_MPLS:
2050 case OFPACT_CLEAR_ACTIONS:
2051 case OFPACT_GOTO_TABLE:
2058 /* Returns true if any action in the 'ofpacts_len' bytes of 'ofpacts' outputs
2059 * to 'port', false otherwise. */
2061 ofpacts_output_to_port(const struct ofpact *ofpacts, size_t ofpacts_len,
2064 const struct ofpact *a;
2066 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
2067 if (ofpact_outputs_to_port(a, port)) {
2076 ofpacts_equal(const struct ofpact *a, size_t a_len,
2077 const struct ofpact *b, size_t b_len)
2079 return a_len == b_len && !memcmp(a, b, a_len);
2082 /* Formatting ofpacts. */
2085 print_note(const struct ofpact_note *note, struct ds *string)
2089 ds_put_cstr(string, "note:");
2090 for (i = 0; i < note->length; i++) {
2092 ds_put_char(string, '.');
2094 ds_put_format(string, "%02"PRIx8, note->data[i]);
2099 print_dec_ttl(const struct ofpact_cnt_ids *ids,
2104 ds_put_cstr(s, "dec_ttl");
2105 if (ids->ofpact.compat == OFPUTIL_NXAST_DEC_TTL_CNT_IDS) {
2106 ds_put_cstr(s, "(");
2107 for (i = 0; i < ids->n_controllers; i++) {
2109 ds_put_cstr(s, ",");
2111 ds_put_format(s, "%"PRIu16, ids->cnt_ids[i]);
2113 ds_put_cstr(s, ")");
2118 print_fin_timeout(const struct ofpact_fin_timeout *fin_timeout,
2121 ds_put_cstr(s, "fin_timeout(");
2122 if (fin_timeout->fin_idle_timeout) {
2123 ds_put_format(s, "idle_timeout=%"PRIu16",",
2124 fin_timeout->fin_idle_timeout);
2126 if (fin_timeout->fin_hard_timeout) {
2127 ds_put_format(s, "hard_timeout=%"PRIu16",",
2128 fin_timeout->fin_hard_timeout);
2131 ds_put_char(s, ')');
2135 ofpact_format(const struct ofpact *a, struct ds *s)
2137 const struct ofpact_enqueue *enqueue;
2138 const struct ofpact_resubmit *resubmit;
2139 const struct ofpact_controller *controller;
2140 const struct ofpact_metadata *metadata;
2141 const struct ofpact_tunnel *tunnel;
2142 const struct ofpact_sample *sample;
2147 port = ofpact_get_OUTPUT(a)->port;
2148 if (ofp_to_u16(port) < ofp_to_u16(OFPP_MAX)) {
2149 ds_put_format(s, "output:%"PRIu16, port);
2151 ofputil_format_port(port, s);
2152 if (port == OFPP_CONTROLLER) {
2153 ds_put_format(s, ":%"PRIu16, ofpact_get_OUTPUT(a)->max_len);
2158 case OFPACT_CONTROLLER:
2159 controller = ofpact_get_CONTROLLER(a);
2160 if (controller->reason == OFPR_ACTION &&
2161 controller->controller_id == 0) {
2162 ds_put_format(s, "CONTROLLER:%"PRIu16,
2163 ofpact_get_CONTROLLER(a)->max_len);
2165 enum ofp_packet_in_reason reason = controller->reason;
2167 ds_put_cstr(s, "controller(");
2168 if (reason != OFPR_ACTION) {
2169 char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE];
2171 ds_put_format(s, "reason=%s,",
2172 ofputil_packet_in_reason_to_string(
2173 reason, reasonbuf, sizeof reasonbuf));
2175 if (controller->max_len != UINT16_MAX) {
2176 ds_put_format(s, "max_len=%"PRIu16",", controller->max_len);
2178 if (controller->controller_id != 0) {
2179 ds_put_format(s, "id=%"PRIu16",", controller->controller_id);
2182 ds_put_char(s, ')');
2186 case OFPACT_ENQUEUE:
2187 enqueue = ofpact_get_ENQUEUE(a);
2188 ds_put_format(s, "enqueue:");
2189 ofputil_format_port(enqueue->port, s);
2190 ds_put_format(s, "q%"PRIu32, enqueue->queue);
2193 case OFPACT_OUTPUT_REG:
2194 ds_put_cstr(s, "output:");
2195 mf_format_subfield(&ofpact_get_OUTPUT_REG(a)->src, s);
2199 bundle_format(ofpact_get_BUNDLE(a), s);
2202 case OFPACT_SET_VLAN_VID:
2203 ds_put_format(s, "mod_vlan_vid:%"PRIu16,
2204 ofpact_get_SET_VLAN_VID(a)->vlan_vid);
2207 case OFPACT_SET_VLAN_PCP:
2208 ds_put_format(s, "mod_vlan_pcp:%"PRIu8,
2209 ofpact_get_SET_VLAN_PCP(a)->vlan_pcp);
2212 case OFPACT_STRIP_VLAN:
2213 ds_put_cstr(s, "strip_vlan");
2216 case OFPACT_PUSH_VLAN:
2217 /* XXX 802.1AD case*/
2218 ds_put_format(s, "push_vlan:%#"PRIx16, ETH_TYPE_VLAN_8021Q);
2221 case OFPACT_SET_ETH_SRC:
2222 ds_put_format(s, "mod_dl_src:"ETH_ADDR_FMT,
2223 ETH_ADDR_ARGS(ofpact_get_SET_ETH_SRC(a)->mac));
2226 case OFPACT_SET_ETH_DST:
2227 ds_put_format(s, "mod_dl_dst:"ETH_ADDR_FMT,
2228 ETH_ADDR_ARGS(ofpact_get_SET_ETH_DST(a)->mac));
2231 case OFPACT_SET_IPV4_SRC:
2232 ds_put_format(s, "mod_nw_src:"IP_FMT,
2233 IP_ARGS(ofpact_get_SET_IPV4_SRC(a)->ipv4));
2236 case OFPACT_SET_IPV4_DST:
2237 ds_put_format(s, "mod_nw_dst:"IP_FMT,
2238 IP_ARGS(ofpact_get_SET_IPV4_DST(a)->ipv4));
2241 case OFPACT_SET_IPV4_DSCP:
2242 ds_put_format(s, "mod_nw_tos:%d", ofpact_get_SET_IPV4_DSCP(a)->dscp);
2245 case OFPACT_SET_L4_SRC_PORT:
2246 ds_put_format(s, "mod_tp_src:%d", ofpact_get_SET_L4_SRC_PORT(a)->port);
2249 case OFPACT_SET_L4_DST_PORT:
2250 ds_put_format(s, "mod_tp_dst:%d", ofpact_get_SET_L4_DST_PORT(a)->port);
2253 case OFPACT_REG_MOVE:
2254 nxm_format_reg_move(ofpact_get_REG_MOVE(a), s);
2257 case OFPACT_REG_LOAD:
2258 nxm_format_reg_load(ofpact_get_REG_LOAD(a), s);
2261 case OFPACT_STACK_PUSH:
2262 nxm_format_stack_push(ofpact_get_STACK_PUSH(a), s);
2265 case OFPACT_STACK_POP:
2266 nxm_format_stack_pop(ofpact_get_STACK_POP(a), s);
2269 case OFPACT_DEC_TTL:
2270 print_dec_ttl(ofpact_get_DEC_TTL(a), s);
2273 case OFPACT_SET_MPLS_TTL:
2274 ds_put_format(s, "set_mpls_ttl(%"PRIu8")",
2275 ofpact_get_SET_MPLS_TTL(a)->ttl);
2278 case OFPACT_DEC_MPLS_TTL:
2279 ds_put_cstr(s, "dec_mpls_ttl");
2282 case OFPACT_SET_TUNNEL:
2283 tunnel = ofpact_get_SET_TUNNEL(a);
2284 ds_put_format(s, "set_tunnel%s:%#"PRIx64,
2285 (tunnel->tun_id > UINT32_MAX
2286 || a->compat == OFPUTIL_NXAST_SET_TUNNEL64 ? "64" : ""),
2290 case OFPACT_SET_QUEUE:
2291 ds_put_format(s, "set_queue:%"PRIu32,
2292 ofpact_get_SET_QUEUE(a)->queue_id);
2295 case OFPACT_POP_QUEUE:
2296 ds_put_cstr(s, "pop_queue");
2299 case OFPACT_FIN_TIMEOUT:
2300 print_fin_timeout(ofpact_get_FIN_TIMEOUT(a), s);
2303 case OFPACT_RESUBMIT:
2304 resubmit = ofpact_get_RESUBMIT(a);
2305 if (resubmit->in_port != OFPP_IN_PORT && resubmit->table_id == 255) {
2306 ds_put_cstr(s, "resubmit:");
2307 ofputil_format_port(resubmit->in_port, s);
2309 ds_put_format(s, "resubmit(");
2310 if (resubmit->in_port != OFPP_IN_PORT) {
2311 ofputil_format_port(resubmit->in_port, s);
2313 ds_put_char(s, ',');
2314 if (resubmit->table_id != 255) {
2315 ds_put_format(s, "%"PRIu8, resubmit->table_id);
2317 ds_put_char(s, ')');
2322 learn_format(ofpact_get_LEARN(a), s);
2325 case OFPACT_MULTIPATH:
2326 multipath_format(ofpact_get_MULTIPATH(a), s);
2330 print_note(ofpact_get_NOTE(a), s);
2333 case OFPACT_PUSH_MPLS:
2334 ds_put_format(s, "push_mpls:0x%04"PRIx16,
2335 ntohs(ofpact_get_PUSH_MPLS(a)->ethertype));
2338 case OFPACT_POP_MPLS:
2339 ds_put_format(s, "pop_mpls:0x%04"PRIx16,
2340 ntohs(ofpact_get_POP_MPLS(a)->ethertype));
2344 ds_put_cstr(s, "exit");
2348 sample = ofpact_get_SAMPLE(a);
2350 s, "sample(probability=%"PRIu16",collector_set_id=%"PRIu32
2351 ",obs_domain_id=%"PRIu32",obs_point_id=%"PRIu32")",
2352 sample->probability, sample->collector_set_id,
2353 sample->obs_domain_id, sample->obs_point_id);
2356 case OFPACT_CLEAR_ACTIONS:
2357 ds_put_format(s, "%s",
2358 ovs_instruction_name_from_type(
2359 OVSINST_OFPIT11_CLEAR_ACTIONS));
2362 case OFPACT_WRITE_METADATA:
2363 metadata = ofpact_get_WRITE_METADATA(a);
2364 ds_put_format(s, "%s:%#"PRIx64,
2365 ovs_instruction_name_from_type(
2366 OVSINST_OFPIT11_WRITE_METADATA),
2367 ntohll(metadata->metadata));
2368 if (metadata->mask != htonll(UINT64_MAX)) {
2369 ds_put_format(s, "/%#"PRIx64, ntohll(metadata->mask));
2373 case OFPACT_GOTO_TABLE:
2374 ds_put_format(s, "%s:%"PRIu8,
2375 ovs_instruction_name_from_type(
2376 OVSINST_OFPIT11_GOTO_TABLE),
2377 ofpact_get_GOTO_TABLE(a)->table_id);
2381 ds_put_format(s, "%s:%"PRIu32,
2382 ovs_instruction_name_from_type(OVSINST_OFPIT13_METER),
2383 ofpact_get_METER(a)->meter_id);
2388 /* Appends a string representing the 'ofpacts_len' bytes of ofpacts in
2389 * 'ofpacts' to 'string'. */
2391 ofpacts_format(const struct ofpact *ofpacts, size_t ofpacts_len,
2394 ds_put_cstr(string, "actions=");
2396 ds_put_cstr(string, "drop");
2398 const struct ofpact *a;
2400 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
2402 ds_put_cstr(string, ",");
2405 /* XXX write-actions */
2406 ofpact_format(a, string);
2411 /* Internal use by helpers. */
2414 ofpact_put(struct ofpbuf *ofpacts, enum ofpact_type type, size_t len)
2416 struct ofpact *ofpact;
2418 ofpact_pad(ofpacts);
2419 ofpact = ofpacts->l2 = ofpbuf_put_uninit(ofpacts, len);
2420 ofpact_init(ofpact, type, len);
2425 ofpact_init(struct ofpact *ofpact, enum ofpact_type type, size_t len)
2427 memset(ofpact, 0, len);
2428 ofpact->type = type;
2429 ofpact->compat = OFPUTIL_ACTION_INVALID;
2433 /* Updates 'ofpact->len' to the number of bytes in the tail of 'ofpacts'
2434 * starting at 'ofpact'.
2436 * This is the correct way to update a variable-length ofpact's length after
2437 * adding the variable-length part of the payload. (See the large comment
2438 * near the end of ofp-actions.h for more information.) */
2440 ofpact_update_len(struct ofpbuf *ofpacts, struct ofpact *ofpact)
2442 ovs_assert(ofpact == ofpacts->l2);
2443 ofpact->len = (char *) ofpbuf_tail(ofpacts) - (char *) ofpact;
2446 /* Pads out 'ofpacts' to a multiple of OFPACT_ALIGNTO bytes in length. Each
2447 * ofpact_put_<ENUM>() calls this function automatically beforehand, but the
2448 * client must call this itself after adding the final ofpact to an array of
2451 * (The consequences of failing to call this function are probably not dire.
2452 * OFPACT_FOR_EACH will calculate a pointer beyond the end of the ofpacts, but
2453 * not dereference it. That's undefined behavior, technically, but it will not
2454 * cause a real problem on common systems. Still, it seems better to call
2457 ofpact_pad(struct ofpbuf *ofpacts)
2459 unsigned int rem = ofpacts->size % OFPACT_ALIGNTO;
2461 ofpbuf_put_zeros(ofpacts, OFPACT_ALIGNTO - rem);
2466 ofpact_set_field_init(struct ofpact_reg_load *load, const struct mf_field *mf,
2469 load->ofpact.compat = OFPUTIL_OFPAT12_SET_FIELD;
2470 load->dst.field = mf;
2472 load->dst.n_bits = mf->n_bits;
2473 bitwise_copy(src, mf->n_bytes, load->dst.ofs,
2474 &load->subvalue, sizeof load->subvalue, 0, mf->n_bits);