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 = 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 = 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 metadata_from_nxast(const struct nx_action_write_metadata *nawm,
142 struct ofpact_metadata *om;
144 if (!is_all_zeros(nawm->zeros, sizeof nawm->zeros)) {
145 return OFPERR_NXBRC_MUST_BE_ZERO;
148 om = ofpact_put_WRITE_METADATA(out);
149 om->metadata = nawm->metadata;
150 om->mask = nawm->mask;
156 note_from_openflow(const struct nx_action_note *nan, struct ofpbuf *out)
158 struct ofpact_note *note;
161 length = ntohs(nan->len) - offsetof(struct nx_action_note, note);
162 note = ofpact_put(out, OFPACT_NOTE,
163 offsetof(struct ofpact_note, data) + length);
164 note->length = length;
165 memcpy(note->data, nan->note, length);
169 dec_ttl_from_openflow(struct ofpbuf *out, enum ofputil_action_code compat)
172 struct ofpact_cnt_ids *ids;
173 enum ofperr error = 0;
175 ids = ofpact_put_DEC_TTL(out);
176 ids->ofpact.compat = compat;
177 ids->n_controllers = 1;
178 ofpbuf_put(out, &id, sizeof id);
180 ofpact_update_len(out, &ids->ofpact);
185 dec_ttl_cnt_ids_from_openflow(const struct nx_action_cnt_ids *nac_ids,
188 struct ofpact_cnt_ids *ids;
192 ids = ofpact_put_DEC_TTL(out);
193 ids->ofpact.compat = OFPUTIL_NXAST_DEC_TTL_CNT_IDS;
194 ids->n_controllers = ntohs(nac_ids->n_controllers);
195 ids_size = ntohs(nac_ids->len) - sizeof *nac_ids;
197 if (!is_all_zeros(nac_ids->zeros, sizeof nac_ids->zeros)) {
198 return OFPERR_NXBRC_MUST_BE_ZERO;
201 if (ids_size < ids->n_controllers * sizeof(ovs_be16)) {
202 VLOG_WARN_RL(&rl, "Nicira action dec_ttl_cnt_ids only has %zu bytes "
203 "allocated for controller ids. %zu bytes are required for "
204 "%"PRIu16" controllers.", ids_size,
205 ids->n_controllers * sizeof(ovs_be16), ids->n_controllers);
206 return OFPERR_OFPBAC_BAD_LEN;
209 for (i = 0; i < ids->n_controllers; i++) {
210 uint16_t id = ntohs(((ovs_be16 *)(nac_ids + 1))[i]);
211 ofpbuf_put(out, &id, sizeof id);
215 ofpact_update_len(out, &ids->ofpact);
221 decode_nxast_action(const union ofp_action *a, enum ofputil_action_code *code)
223 const struct nx_action_header *nah = (const struct nx_action_header *) a;
224 uint16_t len = ntohs(a->header.len);
226 if (len < sizeof(struct nx_action_header)) {
227 return OFPERR_OFPBAC_BAD_LEN;
228 } else if (a->vendor.vendor != CONSTANT_HTONL(NX_VENDOR_ID)) {
229 return OFPERR_OFPBAC_BAD_VENDOR;
232 switch (nah->subtype) {
233 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
234 case CONSTANT_HTONS(ENUM): \
236 ? len >= sizeof(struct STRUCT) \
237 : len == sizeof(struct STRUCT)) { \
238 *code = OFPUTIL_##ENUM; \
241 return OFPERR_OFPBAC_BAD_LEN; \
244 #include "ofp-util.def"
246 case CONSTANT_HTONS(NXAST_SNAT__OBSOLETE):
247 case CONSTANT_HTONS(NXAST_DROP_SPOOFED_ARP__OBSOLETE):
249 return OFPERR_OFPBAC_BAD_TYPE;
253 /* Parses 'a' to determine its type. On success stores the correct type into
254 * '*code' and returns 0. On failure returns an OFPERR_* error code and
255 * '*code' is indeterminate.
257 * The caller must have already verified that 'a''s length is potentially
258 * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
259 * ofp_action) and no longer than the amount of space allocated to 'a').
261 * This function verifies that 'a''s length is correct for the type of action
262 * that it represents. */
264 decode_openflow10_action(const union ofp_action *a,
265 enum ofputil_action_code *code)
268 case CONSTANT_HTONS(OFPAT10_VENDOR):
269 return decode_nxast_action(a, code);
271 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
272 case CONSTANT_HTONS(ENUM): \
273 if (a->header.len == htons(sizeof(struct STRUCT))) { \
274 *code = OFPUTIL_##ENUM; \
277 return OFPERR_OFPBAC_BAD_LEN; \
280 #include "ofp-util.def"
283 return OFPERR_OFPBAC_BAD_TYPE;
288 ofpact_from_nxast(const union ofp_action *a, enum ofputil_action_code code,
291 const struct nx_action_resubmit *nar;
292 const struct nx_action_set_tunnel *nast;
293 const struct nx_action_set_queue *nasq;
294 const struct nx_action_note *nan;
295 const struct nx_action_set_tunnel64 *nast64;
296 const struct nx_action_write_metadata *nawm;
297 struct ofpact_tunnel *tunnel;
298 enum ofperr error = 0;
301 case OFPUTIL_ACTION_INVALID:
302 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
303 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
304 #include "ofp-util.def"
307 case OFPUTIL_NXAST_RESUBMIT:
308 resubmit_from_openflow((const struct nx_action_resubmit *) a, out);
311 case OFPUTIL_NXAST_SET_TUNNEL:
312 nast = (const struct nx_action_set_tunnel *) a;
313 tunnel = ofpact_put_SET_TUNNEL(out);
314 tunnel->ofpact.compat = code;
315 tunnel->tun_id = ntohl(nast->tun_id);
318 case OFPUTIL_NXAST_WRITE_METADATA:
319 nawm = (const struct nx_action_write_metadata *) a;
320 error = metadata_from_nxast(nawm, out);
323 case OFPUTIL_NXAST_SET_QUEUE:
324 nasq = (const struct nx_action_set_queue *) a;
325 ofpact_put_SET_QUEUE(out)->queue_id = ntohl(nasq->queue_id);
328 case OFPUTIL_NXAST_POP_QUEUE:
329 ofpact_put_POP_QUEUE(out);
332 case OFPUTIL_NXAST_REG_MOVE:
333 error = nxm_reg_move_from_openflow(
334 (const struct nx_action_reg_move *) a, out);
337 case OFPUTIL_NXAST_REG_LOAD:
338 error = nxm_reg_load_from_openflow(
339 (const struct nx_action_reg_load *) a, out);
342 case OFPUTIL_NXAST_STACK_PUSH:
343 error = nxm_stack_push_from_openflow(
344 (const struct nx_action_stack *) a, out);
347 case OFPUTIL_NXAST_STACK_POP:
348 error = nxm_stack_pop_from_openflow(
349 (const struct nx_action_stack *) a, out);
352 case OFPUTIL_NXAST_NOTE:
353 nan = (const struct nx_action_note *) a;
354 note_from_openflow(nan, out);
357 case OFPUTIL_NXAST_SET_TUNNEL64:
358 nast64 = (const struct nx_action_set_tunnel64 *) a;
359 tunnel = ofpact_put_SET_TUNNEL(out);
360 tunnel->ofpact.compat = code;
361 tunnel->tun_id = ntohll(nast64->tun_id);
364 case OFPUTIL_NXAST_MULTIPATH:
365 error = multipath_from_openflow((const struct nx_action_multipath *) a,
366 ofpact_put_MULTIPATH(out));
369 case OFPUTIL_NXAST_BUNDLE:
370 case OFPUTIL_NXAST_BUNDLE_LOAD:
371 error = bundle_from_openflow((const struct nx_action_bundle *) a, out);
374 case OFPUTIL_NXAST_OUTPUT_REG:
375 error = output_reg_from_openflow(
376 (const struct nx_action_output_reg *) a, out);
379 case OFPUTIL_NXAST_RESUBMIT_TABLE:
380 nar = (const struct nx_action_resubmit *) a;
381 error = resubmit_table_from_openflow(nar, out);
384 case OFPUTIL_NXAST_LEARN:
385 error = learn_from_openflow((const struct nx_action_learn *) a, out);
388 case OFPUTIL_NXAST_EXIT:
389 ofpact_put_EXIT(out);
392 case OFPUTIL_NXAST_DEC_TTL:
393 error = dec_ttl_from_openflow(out, code);
396 case OFPUTIL_NXAST_DEC_TTL_CNT_IDS:
397 error = dec_ttl_cnt_ids_from_openflow(
398 (const struct nx_action_cnt_ids *) a, out);
401 case OFPUTIL_NXAST_FIN_TIMEOUT:
402 fin_timeout_from_openflow(
403 (const struct nx_action_fin_timeout *) a, out);
406 case OFPUTIL_NXAST_CONTROLLER:
407 controller_from_openflow((const struct nx_action_controller *) a, out);
410 case OFPUTIL_NXAST_PUSH_MPLS: {
411 struct nx_action_push_mpls *nxapm = (struct nx_action_push_mpls *)a;
412 if (!eth_type_mpls(nxapm->ethertype)) {
413 return OFPERR_OFPBAC_BAD_ARGUMENT;
415 ofpact_put_PUSH_MPLS(out)->ethertype = nxapm->ethertype;
419 case OFPUTIL_NXAST_SET_MPLS_TTL: {
420 struct nx_action_mpls_ttl *nxamt = (struct nx_action_mpls_ttl *)a;
421 ofpact_put_SET_MPLS_TTL(out)->ttl = nxamt->ttl;
425 case OFPUTIL_NXAST_DEC_MPLS_TTL:
426 ofpact_put_DEC_MPLS_TTL(out);
429 case OFPUTIL_NXAST_POP_MPLS: {
430 struct nx_action_pop_mpls *nxapm = (struct nx_action_pop_mpls *)a;
431 if (eth_type_mpls(nxapm->ethertype)) {
432 return OFPERR_OFPBAC_BAD_ARGUMENT;
434 ofpact_put_POP_MPLS(out)->ethertype = nxapm->ethertype;
443 ofpact_from_openflow10(const union ofp_action *a, struct ofpbuf *out)
445 enum ofputil_action_code code;
448 error = decode_openflow10_action(a, &code);
454 case OFPUTIL_ACTION_INVALID:
455 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
456 #include "ofp-util.def"
459 case OFPUTIL_OFPAT10_OUTPUT:
460 return output_from_openflow10(&a->output10, out);
462 case OFPUTIL_OFPAT10_SET_VLAN_VID:
463 if (a->vlan_vid.vlan_vid & ~htons(0xfff)) {
464 return OFPERR_OFPBAC_BAD_ARGUMENT;
466 ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
469 case OFPUTIL_OFPAT10_SET_VLAN_PCP:
470 if (a->vlan_pcp.vlan_pcp & ~7) {
471 return OFPERR_OFPBAC_BAD_ARGUMENT;
473 ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp;
476 case OFPUTIL_OFPAT10_STRIP_VLAN:
477 ofpact_put_STRIP_VLAN(out);
480 case OFPUTIL_OFPAT10_SET_DL_SRC:
481 memcpy(ofpact_put_SET_ETH_SRC(out)->mac,
482 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
485 case OFPUTIL_OFPAT10_SET_DL_DST:
486 memcpy(ofpact_put_SET_ETH_DST(out)->mac,
487 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
490 case OFPUTIL_OFPAT10_SET_NW_SRC:
491 ofpact_put_SET_IPV4_SRC(out)->ipv4 = a->nw_addr.nw_addr;
494 case OFPUTIL_OFPAT10_SET_NW_DST:
495 ofpact_put_SET_IPV4_DST(out)->ipv4 = a->nw_addr.nw_addr;
498 case OFPUTIL_OFPAT10_SET_NW_TOS:
499 if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) {
500 return OFPERR_OFPBAC_BAD_ARGUMENT;
502 ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos;
505 case OFPUTIL_OFPAT10_SET_TP_SRC:
506 ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port);
509 case OFPUTIL_OFPAT10_SET_TP_DST:
510 ofpact_put_SET_L4_DST_PORT(out)->port = ntohs(a->tp_port.tp_port);
514 case OFPUTIL_OFPAT10_ENQUEUE:
515 error = enqueue_from_openflow10((const struct ofp10_action_enqueue *) a,
519 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
520 #include "ofp-util.def"
521 return ofpact_from_nxast(a, code, out);
527 static inline union ofp_action *
528 action_next(const union ofp_action *a)
530 return ((union ofp_action *) (void *)
531 ((uint8_t *) a + ntohs(a->header.len)));
535 action_is_valid(const union ofp_action *a, size_t n_actions)
537 uint16_t len = ntohs(a->header.len);
538 return (!(len % OFP_ACTION_ALIGN)
540 && len / sizeof *a <= n_actions);
543 /* This macro is careful to check for actions with bad lengths. */
544 #define ACTION_FOR_EACH(ITER, LEFT, ACTIONS, N_ACTIONS) \
545 for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \
546 (LEFT) > 0 && action_is_valid(ITER, LEFT); \
547 ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \
548 (ITER) = action_next(ITER)))
551 log_bad_action(const union ofp_action *actions, size_t n_actions, size_t ofs,
554 if (!VLOG_DROP_WARN(&rl)) {
558 ds_put_hex_dump(&s, actions, n_actions * sizeof *actions, 0, false);
559 VLOG_WARN("bad action at offset %#zx (%s):\n%s",
560 ofs * sizeof *actions, ofperr_get_name(error), ds_cstr(&s));
566 ofpacts_from_openflow(const union ofp_action *in, size_t n_in,
568 enum ofperr (*ofpact_from_openflow)(
569 const union ofp_action *a, struct ofpbuf *out))
571 const union ofp_action *a;
574 ACTION_FOR_EACH (a, left, in, n_in) {
575 enum ofperr error = ofpact_from_openflow(a, out);
577 log_bad_action(in, n_in, a - in, error);
582 enum ofperr error = OFPERR_OFPBAC_BAD_LEN;
583 log_bad_action(in, n_in, n_in - left, error);
592 ofpacts_from_openflow10(const union ofp_action *in, size_t n_in,
595 return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow10);
599 ofpacts_pull_actions(struct ofpbuf *openflow, unsigned int actions_len,
600 struct ofpbuf *ofpacts,
601 enum ofperr (*translate)(const union ofp_action *actions,
603 struct ofpbuf *ofpacts))
605 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
606 const union ofp_action *actions;
609 ofpbuf_clear(ofpacts);
611 if (actions_len % OFP_ACTION_ALIGN != 0) {
612 VLOG_WARN_RL(&rl, "OpenFlow message actions length %u is not a "
613 "multiple of %d", actions_len, OFP_ACTION_ALIGN);
614 return OFPERR_OFPBRC_BAD_LEN;
617 actions = ofpbuf_try_pull(openflow, actions_len);
618 if (actions == NULL) {
619 VLOG_WARN_RL(&rl, "OpenFlow message actions length %u exceeds "
620 "remaining message length (%zu)",
621 actions_len, openflow->size);
622 return OFPERR_OFPBRC_BAD_LEN;
625 error = translate(actions, actions_len / OFP_ACTION_ALIGN, ofpacts);
627 ofpbuf_clear(ofpacts);
631 error = ofpacts_verify(ofpacts->data, ofpacts->size);
633 ofpbuf_clear(ofpacts);
638 /* Attempts to convert 'actions_len' bytes of OpenFlow 1.0 actions from the
639 * front of 'openflow' into ofpacts. On success, replaces any existing content
640 * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
641 * Returns 0 if successful, otherwise an OpenFlow error.
643 * The parsed actions are valid generically, but they may not be valid in a
644 * specific context. For example, port numbers up to OFPP_MAX are valid
645 * generically, but specific datapaths may only support port numbers in a
646 * smaller range. Use ofpacts_check() to additional check whether actions are
647 * valid in a specific context. */
649 ofpacts_pull_openflow10(struct ofpbuf *openflow, unsigned int actions_len,
650 struct ofpbuf *ofpacts)
652 return ofpacts_pull_actions(openflow, actions_len, ofpacts,
653 ofpacts_from_openflow10);
656 /* OpenFlow 1.1 actions. */
658 /* Parses 'a' to determine its type. On success stores the correct type into
659 * '*code' and returns 0. On failure returns an OFPERR_* error code and
660 * '*code' is indeterminate.
662 * The caller must have already verified that 'a''s length is potentially
663 * correct (that is, a->header.len is nonzero and a multiple of sizeof(union
664 * ofp_action) and no longer than the amount of space allocated to 'a').
666 * This function verifies that 'a''s length is correct for the type of action
667 * that it represents. */
669 decode_openflow11_action(const union ofp_action *a,
670 enum ofputil_action_code *code)
675 case CONSTANT_HTONS(OFPAT11_EXPERIMENTER):
676 return decode_nxast_action(a, code);
678 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
679 case CONSTANT_HTONS(ENUM): \
680 len = ntohs(a->header.len); \
682 ? len >= sizeof(struct STRUCT) \
683 : len == sizeof(struct STRUCT)) { \
684 *code = OFPUTIL_##ENUM; \
687 return OFPERR_OFPBAC_BAD_LEN; \
690 #include "ofp-util.def"
693 return OFPERR_OFPBAC_BAD_TYPE;
698 output_from_openflow11(const struct ofp11_action_output *oao,
701 struct ofpact_output *output;
704 output = ofpact_put_OUTPUT(out);
705 output->max_len = ntohs(oao->max_len);
707 error = ofputil_port_from_ofp11(oao->port, &output->port);
712 return ofputil_check_output_port(output->port, OFPP_MAX);
716 ofpact_from_openflow11(const union ofp_action *a, struct ofpbuf *out)
718 enum ofputil_action_code code;
721 error = decode_openflow11_action(a, &code);
727 case OFPUTIL_ACTION_INVALID:
728 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM:
729 #include "ofp-util.def"
732 case OFPUTIL_OFPAT11_OUTPUT:
733 return output_from_openflow11((const struct ofp11_action_output *) a,
736 case OFPUTIL_OFPAT11_SET_VLAN_VID:
737 if (a->vlan_vid.vlan_vid & ~htons(0xfff)) {
738 return OFPERR_OFPBAC_BAD_ARGUMENT;
740 ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid);
743 case OFPUTIL_OFPAT11_SET_VLAN_PCP:
744 if (a->vlan_pcp.vlan_pcp & ~7) {
745 return OFPERR_OFPBAC_BAD_ARGUMENT;
747 ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp;
750 case OFPUTIL_OFPAT11_PUSH_VLAN:
751 if (((const struct ofp11_action_push *)a)->ethertype !=
752 htons(ETH_TYPE_VLAN_8021Q)) {
753 /* XXX 802.1AD(QinQ) isn't supported at the moment */
754 return OFPERR_OFPBAC_BAD_ARGUMENT;
756 ofpact_put_PUSH_VLAN(out);
759 case OFPUTIL_OFPAT11_POP_VLAN:
760 ofpact_put_STRIP_VLAN(out);
763 case OFPUTIL_OFPAT11_SET_QUEUE:
764 ofpact_put_SET_QUEUE(out)->queue_id =
765 ntohl(((const struct ofp11_action_set_queue *)a)->queue_id);
768 case OFPUTIL_OFPAT11_SET_DL_SRC:
769 memcpy(ofpact_put_SET_ETH_SRC(out)->mac,
770 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
773 case OFPUTIL_OFPAT11_SET_DL_DST:
774 memcpy(ofpact_put_SET_ETH_DST(out)->mac,
775 ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN);
778 case OFPUTIL_OFPAT11_DEC_NW_TTL:
779 dec_ttl_from_openflow(out, code);
782 case OFPUTIL_OFPAT11_SET_NW_SRC:
783 ofpact_put_SET_IPV4_SRC(out)->ipv4 = a->nw_addr.nw_addr;
786 case OFPUTIL_OFPAT11_SET_NW_DST:
787 ofpact_put_SET_IPV4_DST(out)->ipv4 = a->nw_addr.nw_addr;
790 case OFPUTIL_OFPAT11_SET_NW_TOS:
791 if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) {
792 return OFPERR_OFPBAC_BAD_ARGUMENT;
794 ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos;
797 case OFPUTIL_OFPAT11_SET_TP_SRC:
798 ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port);
801 case OFPUTIL_OFPAT11_SET_TP_DST:
802 ofpact_put_SET_L4_DST_PORT(out)->port = ntohs(a->tp_port.tp_port);
805 case OFPUTIL_OFPAT12_SET_FIELD:
806 return nxm_reg_load_from_openflow12_set_field(
807 (const struct ofp12_action_set_field *)a, out);
809 case OFPUTIL_OFPAT11_SET_MPLS_TTL: {
810 struct ofp11_action_mpls_ttl *oamt = (struct ofp11_action_mpls_ttl *)a;
811 ofpact_put_SET_MPLS_TTL(out)->ttl = oamt->mpls_ttl;
815 case OFPUTIL_OFPAT11_DEC_MPLS_TTL:
816 ofpact_put_DEC_MPLS_TTL(out);
819 case OFPUTIL_OFPAT11_PUSH_MPLS: {
820 struct ofp11_action_push *oap = (struct ofp11_action_push *)a;
821 if (!eth_type_mpls(oap->ethertype)) {
822 return OFPERR_OFPBAC_BAD_ARGUMENT;
824 ofpact_put_PUSH_MPLS(out)->ethertype = oap->ethertype;
828 case OFPUTIL_OFPAT11_POP_MPLS: {
829 struct ofp11_action_pop_mpls *oapm = (struct ofp11_action_pop_mpls *)a;
830 if (eth_type_mpls(oapm->ethertype)) {
831 return OFPERR_OFPBAC_BAD_ARGUMENT;
833 ofpact_put_POP_MPLS(out)->ethertype = oapm->ethertype;
837 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM:
838 #include "ofp-util.def"
839 return ofpact_from_nxast(a, code, out);
846 ofpacts_from_openflow11(const union ofp_action *in, size_t n_in,
849 return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow11);
852 /* OpenFlow 1.1 instructions. */
854 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
855 static inline const struct STRUCT * \
856 instruction_get_##ENUM(const struct ofp11_instruction *inst)\
858 ovs_assert(inst->type == htons(ENUM)); \
859 return (struct STRUCT *)inst; \
863 instruction_init_##ENUM(struct STRUCT *s) \
865 memset(s, 0, sizeof *s); \
866 s->type = htons(ENUM); \
867 s->len = htons(sizeof *s); \
870 static inline struct STRUCT * \
871 instruction_put_##ENUM(struct ofpbuf *buf) \
873 struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
874 instruction_init_##ENUM(s); \
880 struct instruction_type_info {
881 enum ovs_instruction_type type;
885 static const struct instruction_type_info inst_info[] = {
886 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) {OVSINST_##ENUM, NAME},
892 ofpact_instruction_name_from_type(enum ovs_instruction_type type)
894 return inst_info[type].name;
898 ofpact_instruction_type_from_name(const char *name)
900 const struct instruction_type_info *p;
901 for (p = inst_info; p < &inst_info[ARRAY_SIZE(inst_info)]; p++) {
902 if (!strcasecmp(name, p->name)) {
909 static inline struct ofp11_instruction *
910 instruction_next(const struct ofp11_instruction *inst)
912 return ((struct ofp11_instruction *) (void *)
913 ((uint8_t *) inst + ntohs(inst->len)));
917 instruction_is_valid(const struct ofp11_instruction *inst,
918 size_t n_instructions)
920 uint16_t len = ntohs(inst->len);
921 return (!(len % OFP11_INSTRUCTION_ALIGN)
922 && len >= sizeof *inst
923 && len / sizeof *inst <= n_instructions);
926 /* This macro is careful to check for instructions with bad lengths. */
927 #define INSTRUCTION_FOR_EACH(ITER, LEFT, INSTRUCTIONS, N_INSTRUCTIONS) \
928 for ((ITER) = (INSTRUCTIONS), (LEFT) = (N_INSTRUCTIONS); \
929 (LEFT) > 0 && instruction_is_valid(ITER, LEFT); \
930 ((LEFT) -= (ntohs((ITER)->len) \
931 / sizeof(struct ofp11_instruction)), \
932 (ITER) = instruction_next(ITER)))
935 decode_openflow11_instruction(const struct ofp11_instruction *inst,
936 enum ovs_instruction_type *type)
938 uint16_t len = ntohs(inst->len);
940 switch (inst->type) {
941 case CONSTANT_HTONS(OFPIT11_EXPERIMENTER):
942 return OFPERR_OFPBIC_BAD_EXPERIMENTER;
944 #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \
945 case CONSTANT_HTONS(ENUM): \
947 ? len >= sizeof(struct STRUCT) \
948 : len == sizeof(struct STRUCT)) { \
949 *type = OVSINST_##ENUM; \
952 return OFPERR_OFPBIC_BAD_LEN; \
958 return OFPERR_OFPBIC_UNKNOWN_INST;
963 decode_openflow11_instructions(const struct ofp11_instruction insts[],
965 const struct ofp11_instruction *out[])
967 const struct ofp11_instruction *inst;
970 memset(out, 0, N_OVS_INSTRUCTIONS * sizeof *out);
971 INSTRUCTION_FOR_EACH (inst, left, insts, n_insts) {
972 enum ovs_instruction_type type;
975 error = decode_openflow11_instruction(inst, &type);
981 return OFPERR_OFPBAC_UNSUPPORTED_ORDER; /* No specific code for
982 * a duplicate instruction
989 VLOG_WARN_RL(&rl, "bad instruction format at offset %zu",
990 (n_insts - left) * sizeof *inst);
991 return OFPERR_OFPBIC_BAD_LEN;
997 get_actions_from_instruction(const struct ofp11_instruction *inst,
998 const union ofp_action **actions,
1001 *actions = (const union ofp_action *) (inst + 1);
1002 *n_actions = (ntohs(inst->len) - sizeof *inst) / OFP11_INSTRUCTION_ALIGN;
1005 /* Attempts to convert 'actions_len' bytes of OpenFlow 1.1 actions from the
1006 * front of 'openflow' into ofpacts. On success, replaces any existing content
1007 * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'.
1008 * Returns 0 if successful, otherwise an OpenFlow error.
1010 * In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in
1011 * instructions, so you should call ofpacts_pull_openflow11_instructions()
1012 * instead of this function.
1014 * The parsed actions are valid generically, but they may not be valid in a
1015 * specific context. For example, port numbers up to OFPP_MAX are valid
1016 * generically, but specific datapaths may only support port numbers in a
1017 * smaller range. Use ofpacts_check() to additional check whether actions are
1018 * valid in a specific context. */
1020 ofpacts_pull_openflow11_actions(struct ofpbuf *openflow,
1021 unsigned int actions_len,
1022 struct ofpbuf *ofpacts)
1024 return ofpacts_pull_actions(openflow, actions_len, ofpacts,
1025 ofpacts_from_openflow11);
1029 ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow,
1030 unsigned int instructions_len,
1031 struct ofpbuf *ofpacts)
1033 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1034 const struct ofp11_instruction *instructions;
1035 const struct ofp11_instruction *insts[N_OVS_INSTRUCTIONS];
1038 ofpbuf_clear(ofpacts);
1040 if (instructions_len % OFP11_INSTRUCTION_ALIGN != 0) {
1041 VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u is not a "
1043 instructions_len, OFP11_INSTRUCTION_ALIGN);
1044 error = OFPERR_OFPBIC_BAD_LEN;
1048 instructions = ofpbuf_try_pull(openflow, instructions_len);
1049 if (instructions == NULL) {
1050 VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u exceeds "
1051 "remaining message length (%zu)",
1052 instructions_len, openflow->size);
1053 error = OFPERR_OFPBIC_BAD_LEN;
1057 error = decode_openflow11_instructions(
1058 instructions, instructions_len / OFP11_INSTRUCTION_ALIGN,
1064 if (insts[OVSINST_OFPIT11_APPLY_ACTIONS]) {
1065 const union ofp_action *actions;
1068 get_actions_from_instruction(insts[OVSINST_OFPIT11_APPLY_ACTIONS],
1069 &actions, &n_actions);
1070 error = ofpacts_from_openflow11(actions, n_actions, ofpacts);
1075 if (insts[OVSINST_OFPIT11_CLEAR_ACTIONS]) {
1076 instruction_get_OFPIT11_CLEAR_ACTIONS(
1077 insts[OVSINST_OFPIT11_CLEAR_ACTIONS]);
1078 ofpact_put_CLEAR_ACTIONS(ofpacts);
1080 /* XXX Write-Actions */
1081 if (insts[OVSINST_OFPIT11_WRITE_METADATA]) {
1082 const struct ofp11_instruction_write_metadata *oiwm;
1083 struct ofpact_metadata *om;
1085 oiwm = (const struct ofp11_instruction_write_metadata *)
1086 insts[OVSINST_OFPIT11_WRITE_METADATA];
1088 om = ofpact_put_WRITE_METADATA(ofpacts);
1089 om->metadata = oiwm->metadata;
1090 om->mask = oiwm->metadata_mask;
1092 if (insts[OVSINST_OFPIT11_GOTO_TABLE]) {
1093 const struct ofp11_instruction_goto_table *oigt;
1094 struct ofpact_goto_table *ogt;
1096 oigt = instruction_get_OFPIT11_GOTO_TABLE(
1097 insts[OVSINST_OFPIT11_GOTO_TABLE]);
1098 ogt = ofpact_put_GOTO_TABLE(ofpacts);
1099 ogt->table_id = oigt->table_id;
1102 if (insts[OVSINST_OFPIT11_WRITE_ACTIONS]) {
1103 error = OFPERR_OFPBIC_UNSUP_INST;
1107 error = ofpacts_verify(ofpacts->data, ofpacts->size);
1110 ofpbuf_clear(ofpacts);
1116 ofpact_check__(const struct ofpact *a, const struct flow *flow, int max_ports,
1119 const struct ofpact_enqueue *enqueue;
1123 return ofputil_check_output_port(ofpact_get_OUTPUT(a)->port,
1126 case OFPACT_CONTROLLER:
1129 case OFPACT_ENQUEUE:
1130 enqueue = ofpact_get_ENQUEUE(a);
1131 if (enqueue->port >= max_ports && enqueue->port != OFPP_IN_PORT
1132 && enqueue->port != OFPP_LOCAL) {
1133 return OFPERR_OFPBAC_BAD_OUT_PORT;
1137 case OFPACT_OUTPUT_REG:
1138 return mf_check_src(&ofpact_get_OUTPUT_REG(a)->src, flow);
1141 return bundle_check(ofpact_get_BUNDLE(a), max_ports, flow);
1143 case OFPACT_SET_VLAN_VID:
1144 case OFPACT_SET_VLAN_PCP:
1145 case OFPACT_STRIP_VLAN:
1146 case OFPACT_PUSH_VLAN:
1147 case OFPACT_SET_ETH_SRC:
1148 case OFPACT_SET_ETH_DST:
1149 case OFPACT_SET_IPV4_SRC:
1150 case OFPACT_SET_IPV4_DST:
1151 case OFPACT_SET_IPV4_DSCP:
1152 case OFPACT_SET_L4_SRC_PORT:
1153 case OFPACT_SET_L4_DST_PORT:
1156 case OFPACT_REG_MOVE:
1157 return nxm_reg_move_check(ofpact_get_REG_MOVE(a), flow);
1159 case OFPACT_REG_LOAD:
1160 if (*dl_type != flow->dl_type) {
1161 struct flow updated_flow = *flow;
1162 updated_flow.dl_type = *dl_type;
1163 return nxm_reg_load_check(ofpact_get_REG_LOAD(a), &updated_flow);
1165 return nxm_reg_load_check(ofpact_get_REG_LOAD(a), flow);
1168 case OFPACT_STACK_PUSH:
1169 return nxm_stack_push_check(ofpact_get_STACK_PUSH(a), flow);
1171 case OFPACT_STACK_POP:
1172 return nxm_stack_pop_check(ofpact_get_STACK_POP(a), flow);
1174 case OFPACT_DEC_TTL:
1175 case OFPACT_SET_MPLS_TTL:
1176 case OFPACT_DEC_MPLS_TTL:
1177 case OFPACT_SET_TUNNEL:
1178 case OFPACT_SET_QUEUE:
1179 case OFPACT_POP_QUEUE:
1180 case OFPACT_FIN_TIMEOUT:
1181 case OFPACT_RESUBMIT:
1185 return learn_check(ofpact_get_LEARN(a), flow);
1187 case OFPACT_MULTIPATH:
1188 return multipath_check(ofpact_get_MULTIPATH(a), flow);
1194 case OFPACT_PUSH_MPLS:
1195 *dl_type = ofpact_get_PUSH_MPLS(a)->ethertype;
1198 case OFPACT_POP_MPLS:
1199 *dl_type = ofpact_get_POP_MPLS(a)->ethertype;
1202 case OFPACT_CLEAR_ACTIONS:
1203 case OFPACT_WRITE_METADATA:
1204 case OFPACT_GOTO_TABLE:
1212 /* Checks that the 'ofpacts_len' bytes of actions in 'ofpacts' are
1213 * appropriate for a packet with the prerequisites satisfied by 'flow' in a
1214 * switch with no more than 'max_ports' ports. */
1216 ofpacts_check(const struct ofpact ofpacts[], size_t ofpacts_len,
1217 const struct flow *flow, int max_ports)
1219 const struct ofpact *a;
1220 ovs_be16 dl_type = flow->dl_type;
1222 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1223 enum ofperr error = ofpact_check__(a, flow, max_ports, &dl_type);
1232 /* Verifies that the 'ofpacts_len' bytes of actions in 'ofpacts' are
1233 * in the appropriate order as defined by the OpenFlow spec. */
1235 ofpacts_verify(const struct ofpact ofpacts[], size_t ofpacts_len)
1237 const struct ofpact *a;
1238 enum ovs_instruction_type inst;
1240 inst = OVSINST_OFPIT11_APPLY_ACTIONS;
1241 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1242 enum ovs_instruction_type next;
1244 if (a->type == OFPACT_CLEAR_ACTIONS) {
1245 next = OVSINST_OFPIT11_CLEAR_ACTIONS;
1246 } else if (a->type == OFPACT_WRITE_METADATA) {
1247 next = OVSINST_OFPIT11_WRITE_METADATA;
1248 } else if (a->type == OFPACT_GOTO_TABLE) {
1249 next = OVSINST_OFPIT11_GOTO_TABLE;
1251 next = OVSINST_OFPIT11_APPLY_ACTIONS;
1254 if (inst != OVSINST_OFPIT11_APPLY_ACTIONS && next <= inst) {
1255 const char *name = ofpact_instruction_name_from_type(inst);
1256 const char *next_name = ofpact_instruction_name_from_type(next);
1259 VLOG_WARN("duplicate %s instruction not allowed, for OpenFlow "
1260 "1.1+ compatibility", name);
1262 VLOG_WARN("invalid instruction ordering: %s must appear "
1263 "before %s, for OpenFlow 1.1+ compatibility",
1266 return OFPERR_OFPBAC_UNSUPPORTED_ORDER;
1275 /* Converting ofpacts to Nicira OpenFlow extensions. */
1278 ofpact_output_reg_to_nxast(const struct ofpact_output_reg *output_reg,
1281 struct nx_action_output_reg *naor = ofputil_put_NXAST_OUTPUT_REG(out);
1283 naor->ofs_nbits = nxm_encode_ofs_nbits(output_reg->src.ofs,
1284 output_reg->src.n_bits);
1285 naor->src = htonl(output_reg->src.field->nxm_header);
1286 naor->max_len = htons(output_reg->max_len);
1290 ofpact_resubmit_to_nxast(const struct ofpact_resubmit *resubmit,
1293 struct nx_action_resubmit *nar;
1295 if (resubmit->table_id == 0xff
1296 && resubmit->ofpact.compat != OFPUTIL_NXAST_RESUBMIT_TABLE) {
1297 nar = ofputil_put_NXAST_RESUBMIT(out);
1299 nar = ofputil_put_NXAST_RESUBMIT_TABLE(out);
1300 nar->table = resubmit->table_id;
1302 nar->in_port = htons(resubmit->in_port);
1306 ofpact_set_tunnel_to_nxast(const struct ofpact_tunnel *tunnel,
1309 uint64_t tun_id = tunnel->tun_id;
1311 if (tun_id <= UINT32_MAX
1312 && tunnel->ofpact.compat != OFPUTIL_NXAST_SET_TUNNEL64) {
1313 ofputil_put_NXAST_SET_TUNNEL(out)->tun_id = htonl(tun_id);
1315 ofputil_put_NXAST_SET_TUNNEL64(out)->tun_id = htonll(tun_id);
1320 ofpact_write_metadata_to_nxast(const struct ofpact_metadata *om,
1323 struct nx_action_write_metadata *nawm;
1325 nawm = ofputil_put_NXAST_WRITE_METADATA(out);
1326 nawm->metadata = om->metadata;
1327 nawm->mask = om->mask;
1331 ofpact_note_to_nxast(const struct ofpact_note *note, struct ofpbuf *out)
1333 size_t start_ofs = out->size;
1334 struct nx_action_note *nan;
1335 unsigned int remainder;
1338 nan = ofputil_put_NXAST_NOTE(out);
1339 out->size -= sizeof nan->note;
1341 ofpbuf_put(out, note->data, note->length);
1343 len = out->size - start_ofs;
1344 remainder = len % OFP_ACTION_ALIGN;
1346 ofpbuf_put_zeros(out, OFP_ACTION_ALIGN - remainder);
1348 nan = (struct nx_action_note *)((char *)out->data + start_ofs);
1349 nan->len = htons(out->size - start_ofs);
1353 ofpact_controller_to_nxast(const struct ofpact_controller *oc,
1356 struct nx_action_controller *nac;
1358 nac = ofputil_put_NXAST_CONTROLLER(out);
1359 nac->max_len = htons(oc->max_len);
1360 nac->controller_id = htons(oc->controller_id);
1361 nac->reason = oc->reason;
1365 ofpact_dec_ttl_to_nxast(const struct ofpact_cnt_ids *oc_ids,
1368 if (oc_ids->ofpact.compat == OFPUTIL_NXAST_DEC_TTL) {
1369 ofputil_put_NXAST_DEC_TTL(out);
1371 struct nx_action_cnt_ids *nac_ids =
1372 ofputil_put_NXAST_DEC_TTL_CNT_IDS(out);
1373 int ids_len = ROUND_UP(2 * oc_ids->n_controllers, OFP_ACTION_ALIGN);
1377 nac_ids->len = htons(ntohs(nac_ids->len) + ids_len);
1378 nac_ids->n_controllers = htons(oc_ids->n_controllers);
1380 ids = ofpbuf_put_zeros(out, ids_len);
1381 for (i = 0; i < oc_ids->n_controllers; i++) {
1382 ids[i] = htons(oc_ids->cnt_ids[i]);
1388 ofpact_fin_timeout_to_nxast(const struct ofpact_fin_timeout *fin_timeout,
1391 struct nx_action_fin_timeout *naft = ofputil_put_NXAST_FIN_TIMEOUT(out);
1392 naft->fin_idle_timeout = htons(fin_timeout->fin_idle_timeout);
1393 naft->fin_hard_timeout = htons(fin_timeout->fin_hard_timeout);
1397 ofpact_to_nxast(const struct ofpact *a, struct ofpbuf *out)
1400 case OFPACT_CONTROLLER:
1401 ofpact_controller_to_nxast(ofpact_get_CONTROLLER(a), out);
1404 case OFPACT_OUTPUT_REG:
1405 ofpact_output_reg_to_nxast(ofpact_get_OUTPUT_REG(a), out);
1409 bundle_to_nxast(ofpact_get_BUNDLE(a), out);
1412 case OFPACT_REG_MOVE:
1413 nxm_reg_move_to_nxast(ofpact_get_REG_MOVE(a), out);
1416 case OFPACT_REG_LOAD:
1417 nxm_reg_load_to_nxast(ofpact_get_REG_LOAD(a), out);
1420 case OFPACT_STACK_PUSH:
1421 nxm_stack_push_to_nxast(ofpact_get_STACK_PUSH(a), out);
1424 case OFPACT_STACK_POP:
1425 nxm_stack_pop_to_nxast(ofpact_get_STACK_POP(a), out);
1428 case OFPACT_DEC_TTL:
1429 ofpact_dec_ttl_to_nxast(ofpact_get_DEC_TTL(a), out);
1432 case OFPACT_SET_MPLS_TTL:
1433 ofputil_put_NXAST_SET_MPLS_TTL(out)->ttl
1434 = ofpact_get_SET_MPLS_TTL(a)->ttl;
1437 case OFPACT_DEC_MPLS_TTL:
1438 ofputil_put_NXAST_DEC_MPLS_TTL(out);
1441 case OFPACT_SET_TUNNEL:
1442 ofpact_set_tunnel_to_nxast(ofpact_get_SET_TUNNEL(a), out);
1445 case OFPACT_WRITE_METADATA:
1446 ofpact_write_metadata_to_nxast(ofpact_get_WRITE_METADATA(a), out);
1449 case OFPACT_SET_QUEUE:
1450 ofputil_put_NXAST_SET_QUEUE(out)->queue_id
1451 = htonl(ofpact_get_SET_QUEUE(a)->queue_id);
1454 case OFPACT_POP_QUEUE:
1455 ofputil_put_NXAST_POP_QUEUE(out);
1458 case OFPACT_FIN_TIMEOUT:
1459 ofpact_fin_timeout_to_nxast(ofpact_get_FIN_TIMEOUT(a), out);
1462 case OFPACT_RESUBMIT:
1463 ofpact_resubmit_to_nxast(ofpact_get_RESUBMIT(a), out);
1467 learn_to_nxast(ofpact_get_LEARN(a), out);
1470 case OFPACT_MULTIPATH:
1471 multipath_to_nxast(ofpact_get_MULTIPATH(a), out);
1475 ofpact_note_to_nxast(ofpact_get_NOTE(a), out);
1479 ofputil_put_NXAST_EXIT(out);
1482 case OFPACT_PUSH_MPLS:
1483 ofputil_put_NXAST_PUSH_MPLS(out)->ethertype =
1484 ofpact_get_PUSH_MPLS(a)->ethertype;
1487 case OFPACT_POP_MPLS:
1488 ofputil_put_NXAST_POP_MPLS(out)->ethertype =
1489 ofpact_get_POP_MPLS(a)->ethertype;
1493 case OFPACT_ENQUEUE:
1494 case OFPACT_SET_VLAN_VID:
1495 case OFPACT_SET_VLAN_PCP:
1496 case OFPACT_STRIP_VLAN:
1497 case OFPACT_PUSH_VLAN:
1498 case OFPACT_SET_ETH_SRC:
1499 case OFPACT_SET_ETH_DST:
1500 case OFPACT_SET_IPV4_SRC:
1501 case OFPACT_SET_IPV4_DST:
1502 case OFPACT_SET_IPV4_DSCP:
1503 case OFPACT_SET_L4_SRC_PORT:
1504 case OFPACT_SET_L4_DST_PORT:
1505 case OFPACT_CLEAR_ACTIONS:
1506 case OFPACT_GOTO_TABLE:
1511 /* Converting ofpacts to OpenFlow 1.0. */
1514 ofpact_output_to_openflow10(const struct ofpact_output *output,
1517 struct ofp10_action_output *oao;
1519 oao = ofputil_put_OFPAT10_OUTPUT(out);
1520 oao->port = htons(output->port);
1521 oao->max_len = htons(output->max_len);
1525 ofpact_enqueue_to_openflow10(const struct ofpact_enqueue *enqueue,
1528 struct ofp10_action_enqueue *oae;
1530 oae = ofputil_put_OFPAT10_ENQUEUE(out);
1531 oae->port = htons(enqueue->port);
1532 oae->queue_id = htonl(enqueue->queue);
1536 ofpact_to_openflow10(const struct ofpact *a, struct ofpbuf *out)
1540 ofpact_output_to_openflow10(ofpact_get_OUTPUT(a), out);
1543 case OFPACT_ENQUEUE:
1544 ofpact_enqueue_to_openflow10(ofpact_get_ENQUEUE(a), out);
1547 case OFPACT_SET_VLAN_VID:
1548 ofputil_put_OFPAT10_SET_VLAN_VID(out)->vlan_vid
1549 = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid);
1552 case OFPACT_SET_VLAN_PCP:
1553 ofputil_put_OFPAT10_SET_VLAN_PCP(out)->vlan_pcp
1554 = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp;
1557 case OFPACT_STRIP_VLAN:
1558 ofputil_put_OFPAT10_STRIP_VLAN(out);
1561 case OFPACT_SET_ETH_SRC:
1562 memcpy(ofputil_put_OFPAT10_SET_DL_SRC(out)->dl_addr,
1563 ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN);
1566 case OFPACT_SET_ETH_DST:
1567 memcpy(ofputil_put_OFPAT10_SET_DL_DST(out)->dl_addr,
1568 ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN);
1571 case OFPACT_SET_IPV4_SRC:
1572 ofputil_put_OFPAT10_SET_NW_SRC(out)->nw_addr
1573 = ofpact_get_SET_IPV4_SRC(a)->ipv4;
1576 case OFPACT_SET_IPV4_DST:
1577 ofputil_put_OFPAT10_SET_NW_DST(out)->nw_addr
1578 = ofpact_get_SET_IPV4_DST(a)->ipv4;
1581 case OFPACT_SET_IPV4_DSCP:
1582 ofputil_put_OFPAT10_SET_NW_TOS(out)->nw_tos
1583 = ofpact_get_SET_IPV4_DSCP(a)->dscp;
1586 case OFPACT_SET_L4_SRC_PORT:
1587 ofputil_put_OFPAT10_SET_TP_SRC(out)->tp_port
1588 = htons(ofpact_get_SET_L4_SRC_PORT(a)->port);
1591 case OFPACT_SET_L4_DST_PORT:
1592 ofputil_put_OFPAT10_SET_TP_DST(out)->tp_port
1593 = htons(ofpact_get_SET_L4_DST_PORT(a)->port);
1596 case OFPACT_PUSH_VLAN:
1597 case OFPACT_CLEAR_ACTIONS:
1598 case OFPACT_GOTO_TABLE:
1602 case OFPACT_CONTROLLER:
1603 case OFPACT_OUTPUT_REG:
1605 case OFPACT_REG_MOVE:
1606 case OFPACT_REG_LOAD:
1607 case OFPACT_STACK_PUSH:
1608 case OFPACT_STACK_POP:
1609 case OFPACT_DEC_TTL:
1610 case OFPACT_SET_MPLS_TTL:
1611 case OFPACT_DEC_MPLS_TTL:
1612 case OFPACT_SET_TUNNEL:
1613 case OFPACT_WRITE_METADATA:
1614 case OFPACT_SET_QUEUE:
1615 case OFPACT_POP_QUEUE:
1616 case OFPACT_FIN_TIMEOUT:
1617 case OFPACT_RESUBMIT:
1619 case OFPACT_MULTIPATH:
1622 case OFPACT_PUSH_MPLS:
1623 case OFPACT_POP_MPLS:
1624 ofpact_to_nxast(a, out);
1629 /* Converts the 'ofpacts_len' bytes of ofpacts in 'ofpacts' into OpenFlow 1.0
1630 * actions in 'openflow', appending the actions to any existing data in
1633 ofpacts_put_openflow10(const struct ofpact ofpacts[], size_t ofpacts_len,
1634 struct ofpbuf *openflow)
1636 const struct ofpact *a;
1638 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1639 ofpact_to_openflow10(a, openflow);
1643 /* Converting ofpacts to OpenFlow 1.1. */
1646 ofpact_output_to_openflow11(const struct ofpact_output *output,
1649 struct ofp11_action_output *oao;
1651 oao = ofputil_put_OFPAT11_OUTPUT(out);
1652 oao->port = ofputil_port_to_ofp11(output->port);
1653 oao->max_len = htons(output->max_len);
1657 ofpact_dec_ttl_to_openflow11(const struct ofpact_cnt_ids *dec_ttl,
1660 if (dec_ttl->n_controllers == 1 && dec_ttl->cnt_ids[0] == 0
1661 && (!dec_ttl->ofpact.compat ||
1662 dec_ttl->ofpact.compat == OFPUTIL_OFPAT11_DEC_NW_TTL)) {
1663 ofputil_put_OFPAT11_DEC_NW_TTL(out);
1665 ofpact_dec_ttl_to_nxast(dec_ttl, out);
1670 ofpact_to_openflow11(const struct ofpact *a, struct ofpbuf *out)
1674 return ofpact_output_to_openflow11(ofpact_get_OUTPUT(a), out);
1676 case OFPACT_ENQUEUE:
1680 case OFPACT_SET_VLAN_VID:
1681 ofputil_put_OFPAT11_SET_VLAN_VID(out)->vlan_vid
1682 = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid);
1685 case OFPACT_SET_VLAN_PCP:
1686 ofputil_put_OFPAT11_SET_VLAN_PCP(out)->vlan_pcp
1687 = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp;
1690 case OFPACT_STRIP_VLAN:
1691 ofputil_put_OFPAT11_POP_VLAN(out);
1694 case OFPACT_PUSH_VLAN:
1695 /* XXX ETH_TYPE_VLAN_8021AD case */
1696 ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype =
1697 htons(ETH_TYPE_VLAN_8021Q);
1700 case OFPACT_SET_QUEUE:
1701 ofputil_put_OFPAT11_SET_QUEUE(out)->queue_id
1702 = htonl(ofpact_get_SET_QUEUE(a)->queue_id);
1705 case OFPACT_SET_ETH_SRC:
1706 memcpy(ofputil_put_OFPAT11_SET_DL_SRC(out)->dl_addr,
1707 ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN);
1710 case OFPACT_SET_ETH_DST:
1711 memcpy(ofputil_put_OFPAT11_SET_DL_DST(out)->dl_addr,
1712 ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN);
1715 case OFPACT_SET_IPV4_SRC:
1716 ofputil_put_OFPAT11_SET_NW_SRC(out)->nw_addr
1717 = ofpact_get_SET_IPV4_SRC(a)->ipv4;
1720 case OFPACT_SET_IPV4_DST:
1721 ofputil_put_OFPAT11_SET_NW_DST(out)->nw_addr
1722 = ofpact_get_SET_IPV4_DST(a)->ipv4;
1725 case OFPACT_SET_IPV4_DSCP:
1726 ofputil_put_OFPAT11_SET_NW_TOS(out)->nw_tos
1727 = ofpact_get_SET_IPV4_DSCP(a)->dscp;
1730 case OFPACT_SET_L4_SRC_PORT:
1731 ofputil_put_OFPAT11_SET_TP_SRC(out)->tp_port
1732 = htons(ofpact_get_SET_L4_SRC_PORT(a)->port);
1735 case OFPACT_SET_L4_DST_PORT:
1736 ofputil_put_OFPAT11_SET_TP_DST(out)->tp_port
1737 = htons(ofpact_get_SET_L4_DST_PORT(a)->port);
1740 case OFPACT_DEC_TTL:
1741 ofpact_dec_ttl_to_openflow11(ofpact_get_DEC_TTL(a), out);
1744 case OFPACT_SET_MPLS_TTL:
1745 ofputil_put_OFPAT11_SET_MPLS_TTL(out)->mpls_ttl
1746 = ofpact_get_SET_MPLS_TTL(a)->ttl;
1749 case OFPACT_DEC_MPLS_TTL:
1750 ofputil_put_OFPAT11_DEC_MPLS_TTL(out);
1753 case OFPACT_WRITE_METADATA:
1754 /* OpenFlow 1.1 uses OFPIT_WRITE_METADATA to express this action. */
1757 case OFPACT_PUSH_MPLS:
1758 ofputil_put_OFPAT11_PUSH_MPLS(out)->ethertype =
1759 ofpact_get_PUSH_MPLS(a)->ethertype;
1762 case OFPACT_POP_MPLS:
1763 ofputil_put_OFPAT11_POP_MPLS(out)->ethertype =
1764 ofpact_get_POP_MPLS(a)->ethertype;
1768 case OFPACT_CLEAR_ACTIONS:
1769 case OFPACT_GOTO_TABLE:
1772 case OFPACT_CONTROLLER:
1773 case OFPACT_OUTPUT_REG:
1775 case OFPACT_REG_MOVE:
1776 case OFPACT_REG_LOAD:
1777 case OFPACT_STACK_PUSH:
1778 case OFPACT_STACK_POP:
1779 case OFPACT_SET_TUNNEL:
1780 case OFPACT_POP_QUEUE:
1781 case OFPACT_FIN_TIMEOUT:
1782 case OFPACT_RESUBMIT:
1784 case OFPACT_MULTIPATH:
1787 ofpact_to_nxast(a, out);
1792 /* Converts the ofpacts in 'ofpacts' (terminated by OFPACT_END) into OpenFlow
1793 * 1.1 actions in 'openflow', appending the actions to any existing data in
1796 ofpacts_put_openflow11_actions(const struct ofpact ofpacts[],
1797 size_t ofpacts_len, struct ofpbuf *openflow)
1799 const struct ofpact *a;
1800 size_t start_size = openflow->size;
1802 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1803 ofpact_to_openflow11(a, openflow);
1806 return openflow->size - start_size;
1810 ofpacts_update_instruction_actions(struct ofpbuf *openflow, size_t ofs)
1812 struct ofp11_instruction_actions *oia;
1814 /* Update the instruction's length (or, if it's empty, delete it). */
1815 oia = ofpbuf_at_assert(openflow, ofs, sizeof *oia);
1816 if (openflow->size > ofs + sizeof *oia) {
1817 oia->len = htons(openflow->size - ofs);
1819 openflow->size = ofs;
1824 ofpacts_put_openflow11_instructions(const struct ofpact ofpacts[],
1826 struct ofpbuf *openflow)
1828 const struct ofpact *a;
1830 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1831 /* XXX Write-Actions */
1833 if (a->type == OFPACT_CLEAR_ACTIONS) {
1834 instruction_put_OFPIT11_CLEAR_ACTIONS(openflow);
1835 } else if (a->type == OFPACT_GOTO_TABLE) {
1836 struct ofp11_instruction_goto_table *oigt;
1838 oigt = instruction_put_OFPIT11_GOTO_TABLE(openflow);
1839 oigt->table_id = ofpact_get_GOTO_TABLE(a)->table_id;
1840 memset(oigt->pad, 0, sizeof oigt->pad);
1841 } else if (a->type == OFPACT_WRITE_METADATA) {
1842 const struct ofpact_metadata *om;
1843 struct ofp11_instruction_write_metadata *oiwm;
1845 om = ofpact_get_WRITE_METADATA(a);
1846 oiwm = instruction_put_OFPIT11_WRITE_METADATA(openflow);
1847 oiwm->metadata = om->metadata;
1848 oiwm->metadata_mask = om->mask;
1849 } else if (!ofpact_is_instruction(a)) {
1851 const size_t ofs = openflow->size;
1852 const size_t ofpacts_len_left =
1853 (uint8_t*)ofpact_end(ofpacts, ofpacts_len) - (uint8_t*)a;
1854 const struct ofpact *action;
1855 const struct ofpact *processed = a;
1857 instruction_put_OFPIT11_APPLY_ACTIONS(openflow);
1858 OFPACT_FOR_EACH(action, a, ofpacts_len_left) {
1859 if (ofpact_is_instruction(action)) {
1862 ofpact_to_openflow11(action, openflow);
1865 ofpacts_update_instruction_actions(openflow, ofs);
1871 /* Returns true if 'action' outputs to 'port', false otherwise. */
1873 ofpact_outputs_to_port(const struct ofpact *ofpact, uint16_t port)
1875 switch (ofpact->type) {
1877 return ofpact_get_OUTPUT(ofpact)->port == port;
1878 case OFPACT_ENQUEUE:
1879 return ofpact_get_ENQUEUE(ofpact)->port == port;
1880 case OFPACT_CONTROLLER:
1881 return port == OFPP_CONTROLLER;
1883 case OFPACT_OUTPUT_REG:
1885 case OFPACT_SET_VLAN_VID:
1886 case OFPACT_SET_VLAN_PCP:
1887 case OFPACT_STRIP_VLAN:
1888 case OFPACT_PUSH_VLAN:
1889 case OFPACT_SET_ETH_SRC:
1890 case OFPACT_SET_ETH_DST:
1891 case OFPACT_SET_IPV4_SRC:
1892 case OFPACT_SET_IPV4_DST:
1893 case OFPACT_SET_IPV4_DSCP:
1894 case OFPACT_SET_L4_SRC_PORT:
1895 case OFPACT_SET_L4_DST_PORT:
1896 case OFPACT_REG_MOVE:
1897 case OFPACT_REG_LOAD:
1898 case OFPACT_STACK_PUSH:
1899 case OFPACT_STACK_POP:
1900 case OFPACT_DEC_TTL:
1901 case OFPACT_SET_MPLS_TTL:
1902 case OFPACT_DEC_MPLS_TTL:
1903 case OFPACT_SET_TUNNEL:
1904 case OFPACT_WRITE_METADATA:
1905 case OFPACT_SET_QUEUE:
1906 case OFPACT_POP_QUEUE:
1907 case OFPACT_FIN_TIMEOUT:
1908 case OFPACT_RESUBMIT:
1910 case OFPACT_MULTIPATH:
1913 case OFPACT_PUSH_MPLS:
1914 case OFPACT_POP_MPLS:
1915 case OFPACT_CLEAR_ACTIONS:
1916 case OFPACT_GOTO_TABLE:
1922 /* Returns true if any action in the 'ofpacts_len' bytes of 'ofpacts' outputs
1923 * to 'port', false otherwise. */
1925 ofpacts_output_to_port(const struct ofpact *ofpacts, size_t ofpacts_len,
1928 const struct ofpact *a;
1930 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
1931 if (ofpact_outputs_to_port(a, port)) {
1940 ofpacts_equal(const struct ofpact *a, size_t a_len,
1941 const struct ofpact *b, size_t b_len)
1943 return a_len == b_len && !memcmp(a, b, a_len);
1946 /* Formatting ofpacts. */
1949 print_note(const struct ofpact_note *note, struct ds *string)
1953 ds_put_cstr(string, "note:");
1954 for (i = 0; i < note->length; i++) {
1956 ds_put_char(string, '.');
1958 ds_put_format(string, "%02"PRIx8, note->data[i]);
1963 print_dec_ttl(const struct ofpact_cnt_ids *ids,
1968 ds_put_cstr(s, "dec_ttl");
1969 if (ids->ofpact.compat == OFPUTIL_NXAST_DEC_TTL_CNT_IDS) {
1970 ds_put_cstr(s, "(");
1971 for (i = 0; i < ids->n_controllers; i++) {
1973 ds_put_cstr(s, ",");
1975 ds_put_format(s, "%"PRIu16, ids->cnt_ids[i]);
1977 ds_put_cstr(s, ")");
1982 print_fin_timeout(const struct ofpact_fin_timeout *fin_timeout,
1985 ds_put_cstr(s, "fin_timeout(");
1986 if (fin_timeout->fin_idle_timeout) {
1987 ds_put_format(s, "idle_timeout=%"PRIu16",",
1988 fin_timeout->fin_idle_timeout);
1990 if (fin_timeout->fin_hard_timeout) {
1991 ds_put_format(s, "hard_timeout=%"PRIu16",",
1992 fin_timeout->fin_hard_timeout);
1995 ds_put_char(s, ')');
1999 ofpact_format(const struct ofpact *a, struct ds *s)
2001 const struct ofpact_enqueue *enqueue;
2002 const struct ofpact_resubmit *resubmit;
2003 const struct ofpact_controller *controller;
2004 const struct ofpact_metadata *metadata;
2005 const struct ofpact_tunnel *tunnel;
2010 port = ofpact_get_OUTPUT(a)->port;
2011 if (port < OFPP_MAX) {
2012 ds_put_format(s, "output:%"PRIu16, port);
2014 ofputil_format_port(port, s);
2015 if (port == OFPP_CONTROLLER) {
2016 ds_put_format(s, ":%"PRIu16, ofpact_get_OUTPUT(a)->max_len);
2021 case OFPACT_CONTROLLER:
2022 controller = ofpact_get_CONTROLLER(a);
2023 if (controller->reason == OFPR_ACTION &&
2024 controller->controller_id == 0) {
2025 ds_put_format(s, "CONTROLLER:%"PRIu16,
2026 ofpact_get_CONTROLLER(a)->max_len);
2028 enum ofp_packet_in_reason reason = controller->reason;
2030 ds_put_cstr(s, "controller(");
2031 if (reason != OFPR_ACTION) {
2032 ds_put_format(s, "reason=%s,",
2033 ofputil_packet_in_reason_to_string(reason));
2035 if (controller->max_len != UINT16_MAX) {
2036 ds_put_format(s, "max_len=%"PRIu16",", controller->max_len);
2038 if (controller->controller_id != 0) {
2039 ds_put_format(s, "id=%"PRIu16",", controller->controller_id);
2042 ds_put_char(s, ')');
2046 case OFPACT_ENQUEUE:
2047 enqueue = ofpact_get_ENQUEUE(a);
2048 ds_put_format(s, "enqueue:");
2049 ofputil_format_port(enqueue->port, s);
2050 ds_put_format(s, "q%"PRIu32, enqueue->queue);
2053 case OFPACT_OUTPUT_REG:
2054 ds_put_cstr(s, "output:");
2055 mf_format_subfield(&ofpact_get_OUTPUT_REG(a)->src, s);
2059 bundle_format(ofpact_get_BUNDLE(a), s);
2062 case OFPACT_SET_VLAN_VID:
2063 ds_put_format(s, "mod_vlan_vid:%"PRIu16,
2064 ofpact_get_SET_VLAN_VID(a)->vlan_vid);
2067 case OFPACT_SET_VLAN_PCP:
2068 ds_put_format(s, "mod_vlan_pcp:%"PRIu8,
2069 ofpact_get_SET_VLAN_PCP(a)->vlan_pcp);
2072 case OFPACT_STRIP_VLAN:
2073 ds_put_cstr(s, "strip_vlan");
2076 case OFPACT_PUSH_VLAN:
2077 /* XXX 802.1AD case*/
2078 ds_put_format(s, "push_vlan:%#"PRIx16, ETH_TYPE_VLAN_8021Q);
2081 case OFPACT_SET_ETH_SRC:
2082 ds_put_format(s, "mod_dl_src:"ETH_ADDR_FMT,
2083 ETH_ADDR_ARGS(ofpact_get_SET_ETH_SRC(a)->mac));
2086 case OFPACT_SET_ETH_DST:
2087 ds_put_format(s, "mod_dl_dst:"ETH_ADDR_FMT,
2088 ETH_ADDR_ARGS(ofpact_get_SET_ETH_DST(a)->mac));
2091 case OFPACT_SET_IPV4_SRC:
2092 ds_put_format(s, "mod_nw_src:"IP_FMT,
2093 IP_ARGS(ofpact_get_SET_IPV4_SRC(a)->ipv4));
2096 case OFPACT_SET_IPV4_DST:
2097 ds_put_format(s, "mod_nw_dst:"IP_FMT,
2098 IP_ARGS(ofpact_get_SET_IPV4_DST(a)->ipv4));
2101 case OFPACT_SET_IPV4_DSCP:
2102 ds_put_format(s, "mod_nw_tos:%d", ofpact_get_SET_IPV4_DSCP(a)->dscp);
2105 case OFPACT_SET_L4_SRC_PORT:
2106 ds_put_format(s, "mod_tp_src:%d", ofpact_get_SET_L4_SRC_PORT(a)->port);
2109 case OFPACT_SET_L4_DST_PORT:
2110 ds_put_format(s, "mod_tp_dst:%d", ofpact_get_SET_L4_DST_PORT(a)->port);
2113 case OFPACT_REG_MOVE:
2114 nxm_format_reg_move(ofpact_get_REG_MOVE(a), s);
2117 case OFPACT_REG_LOAD:
2118 nxm_format_reg_load(ofpact_get_REG_LOAD(a), s);
2121 case OFPACT_STACK_PUSH:
2122 nxm_format_stack_push(ofpact_get_STACK_PUSH(a), s);
2125 case OFPACT_STACK_POP:
2126 nxm_format_stack_pop(ofpact_get_STACK_POP(a), s);
2129 case OFPACT_DEC_TTL:
2130 print_dec_ttl(ofpact_get_DEC_TTL(a), s);
2133 case OFPACT_SET_MPLS_TTL:
2134 ds_put_format(s, "set_mpls_ttl(%"PRIu8")",
2135 ofpact_get_SET_MPLS_TTL(a)->ttl);
2138 case OFPACT_DEC_MPLS_TTL:
2139 ds_put_cstr(s, "dec_mpls_ttl");
2142 case OFPACT_SET_TUNNEL:
2143 tunnel = ofpact_get_SET_TUNNEL(a);
2144 ds_put_format(s, "set_tunnel%s:%#"PRIx64,
2145 (tunnel->tun_id > UINT32_MAX
2146 || a->compat == OFPUTIL_NXAST_SET_TUNNEL64 ? "64" : ""),
2150 case OFPACT_SET_QUEUE:
2151 ds_put_format(s, "set_queue:%"PRIu32,
2152 ofpact_get_SET_QUEUE(a)->queue_id);
2155 case OFPACT_POP_QUEUE:
2156 ds_put_cstr(s, "pop_queue");
2159 case OFPACT_FIN_TIMEOUT:
2160 print_fin_timeout(ofpact_get_FIN_TIMEOUT(a), s);
2163 case OFPACT_RESUBMIT:
2164 resubmit = ofpact_get_RESUBMIT(a);
2165 if (resubmit->in_port != OFPP_IN_PORT && resubmit->table_id == 255) {
2166 ds_put_cstr(s, "resubmit:");
2167 ofputil_format_port(resubmit->in_port, s);
2169 ds_put_format(s, "resubmit(");
2170 if (resubmit->in_port != OFPP_IN_PORT) {
2171 ofputil_format_port(resubmit->in_port, s);
2173 ds_put_char(s, ',');
2174 if (resubmit->table_id != 255) {
2175 ds_put_format(s, "%"PRIu8, resubmit->table_id);
2177 ds_put_char(s, ')');
2182 learn_format(ofpact_get_LEARN(a), s);
2185 case OFPACT_MULTIPATH:
2186 multipath_format(ofpact_get_MULTIPATH(a), s);
2190 print_note(ofpact_get_NOTE(a), s);
2193 case OFPACT_PUSH_MPLS:
2194 ds_put_format(s, "push_mpls:0x%04"PRIx16,
2195 ntohs(ofpact_get_PUSH_MPLS(a)->ethertype));
2198 case OFPACT_POP_MPLS:
2199 ds_put_format(s, "pop_mpls:0x%04"PRIx16,
2200 ntohs(ofpact_get_POP_MPLS(a)->ethertype));
2204 ds_put_cstr(s, "exit");
2207 case OFPACT_CLEAR_ACTIONS:
2208 ds_put_format(s, "%s",
2209 ofpact_instruction_name_from_type(
2210 OVSINST_OFPIT11_CLEAR_ACTIONS));
2213 case OFPACT_WRITE_METADATA:
2214 metadata = ofpact_get_WRITE_METADATA(a);
2215 ds_put_format(s, "%s:%#"PRIx64,
2216 ofpact_instruction_name_from_type(
2217 OVSINST_OFPIT11_WRITE_METADATA),
2218 ntohll(metadata->metadata));
2219 if (metadata->mask != htonll(UINT64_MAX)) {
2220 ds_put_format(s, "/%#"PRIx64, ntohll(metadata->mask));
2224 case OFPACT_GOTO_TABLE:
2225 ds_put_format(s, "%s:%"PRIu8,
2226 ofpact_instruction_name_from_type(
2227 OVSINST_OFPIT11_GOTO_TABLE),
2228 ofpact_get_GOTO_TABLE(a)->table_id);
2233 /* Appends a string representing the 'ofpacts_len' bytes of ofpacts in
2234 * 'ofpacts' to 'string'. */
2236 ofpacts_format(const struct ofpact *ofpacts, size_t ofpacts_len,
2239 ds_put_cstr(string, "actions=");
2241 ds_put_cstr(string, "drop");
2243 const struct ofpact *a;
2245 OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) {
2247 ds_put_cstr(string, ",");
2250 /* XXX write-actions */
2251 ofpact_format(a, string);
2256 /* Internal use by helpers. */
2259 ofpact_put(struct ofpbuf *ofpacts, enum ofpact_type type, size_t len)
2261 struct ofpact *ofpact;
2263 ofpact_pad(ofpacts);
2264 ofpact = ofpacts->l2 = ofpbuf_put_uninit(ofpacts, len);
2265 ofpact_init(ofpact, type, len);
2270 ofpact_init(struct ofpact *ofpact, enum ofpact_type type, size_t len)
2272 memset(ofpact, 0, len);
2273 ofpact->type = type;
2274 ofpact->compat = OFPUTIL_ACTION_INVALID;
2278 /* Updates 'ofpact->len' to the number of bytes in the tail of 'ofpacts'
2279 * starting at 'ofpact'.
2281 * This is the correct way to update a variable-length ofpact's length after
2282 * adding the variable-length part of the payload. (See the large comment
2283 * near the end of ofp-actions.h for more information.) */
2285 ofpact_update_len(struct ofpbuf *ofpacts, struct ofpact *ofpact)
2287 ovs_assert(ofpact == ofpacts->l2);
2288 ofpact->len = (char *) ofpbuf_tail(ofpacts) - (char *) ofpact;
2291 /* Pads out 'ofpacts' to a multiple of OFPACT_ALIGNTO bytes in length. Each
2292 * ofpact_put_<ENUM>() calls this function automatically beforehand, but the
2293 * client must call this itself after adding the final ofpact to an array of
2296 * (The consequences of failing to call this function are probably not dire.
2297 * OFPACT_FOR_EACH will calculate a pointer beyond the end of the ofpacts, but
2298 * not dereference it. That's undefined behavior, technically, but it will not
2299 * cause a real problem on common systems. Still, it seems better to call
2302 ofpact_pad(struct ofpbuf *ofpacts)
2304 unsigned int rem = ofpacts->size % OFPACT_ALIGNTO;
2306 ofpbuf_put_zeros(ofpacts, OFPACT_ALIGNTO - rem);
2311 ofpact_set_field_init(struct ofpact_reg_load *load, const struct mf_field *mf,
2314 load->ofpact.compat = OFPUTIL_OFPAT12_SET_FIELD;
2315 load->dst.field = mf;
2317 load->dst.n_bits = mf->n_bits;
2318 bitwise_copy(src, mf->n_bytes, load->dst.ofs,
2319 &load->subvalue, sizeof load->subvalue, 0, mf->n_bits);