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f25d0cf3 | 1 | /* |
6813ee7c | 2 | * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc. |
f25d0cf3 BP |
3 | * |
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: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
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. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | #include "ofp-actions.h" | |
f25d0cf3 BP |
19 | #include "bundle.h" |
20 | #include "byte-order.h" | |
21 | #include "compiler.h" | |
22 | #include "dynamic-string.h" | |
23 | #include "learn.h" | |
24 | #include "meta-flow.h" | |
25 | #include "multipath.h" | |
26 | #include "nx-match.h" | |
27 | #include "ofp-util.h" | |
28 | #include "ofpbuf.h" | |
cb22974d | 29 | #include "util.h" |
f25d0cf3 BP |
30 | #include "vlog.h" |
31 | ||
32 | VLOG_DEFINE_THIS_MODULE(ofp_actions); | |
33 | ||
34 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
35 | \f | |
36 | /* Converting OpenFlow 1.0 to ofpacts. */ | |
37 | ||
38 | static enum ofperr | |
d01c980f | 39 | output_from_openflow10(const struct ofp10_action_output *oao, |
f25d0cf3 BP |
40 | struct ofpbuf *out) |
41 | { | |
42 | struct ofpact_output *output; | |
43 | ||
44 | output = ofpact_put_OUTPUT(out); | |
4e022ec0 | 45 | output->port = u16_to_ofp(ntohs(oao->port)); |
f25d0cf3 BP |
46 | output->max_len = ntohs(oao->max_len); |
47 | ||
48 | return ofputil_check_output_port(output->port, OFPP_MAX); | |
49 | } | |
50 | ||
51 | static enum ofperr | |
31a9e63f | 52 | enqueue_from_openflow10(const struct ofp10_action_enqueue *oae, |
f25d0cf3 BP |
53 | struct ofpbuf *out) |
54 | { | |
55 | struct ofpact_enqueue *enqueue; | |
56 | ||
57 | enqueue = ofpact_put_ENQUEUE(out); | |
4e022ec0 | 58 | enqueue->port = u16_to_ofp(ntohs(oae->port)); |
f25d0cf3 | 59 | enqueue->queue = ntohl(oae->queue_id); |
4e022ec0 AW |
60 | if (ofp_to_u16(enqueue->port) >= ofp_to_u16(OFPP_MAX) |
61 | && enqueue->port != OFPP_IN_PORT | |
f25d0cf3 BP |
62 | && enqueue->port != OFPP_LOCAL) { |
63 | return OFPERR_OFPBAC_BAD_OUT_PORT; | |
64 | } | |
65 | return 0; | |
66 | } | |
67 | ||
68 | static void | |
69 | resubmit_from_openflow(const struct nx_action_resubmit *nar, | |
70 | struct ofpbuf *out) | |
71 | { | |
72 | struct ofpact_resubmit *resubmit; | |
73 | ||
74 | resubmit = ofpact_put_RESUBMIT(out); | |
75 | resubmit->ofpact.compat = OFPUTIL_NXAST_RESUBMIT; | |
4e022ec0 | 76 | resubmit->in_port = u16_to_ofp(ntohs(nar->in_port)); |
f25d0cf3 BP |
77 | resubmit->table_id = 0xff; |
78 | } | |
79 | ||
80 | static enum ofperr | |
81 | resubmit_table_from_openflow(const struct nx_action_resubmit *nar, | |
82 | struct ofpbuf *out) | |
83 | { | |
84 | struct ofpact_resubmit *resubmit; | |
85 | ||
86 | if (nar->pad[0] || nar->pad[1] || nar->pad[2]) { | |
87 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
88 | } | |
89 | ||
90 | resubmit = ofpact_put_RESUBMIT(out); | |
91 | resubmit->ofpact.compat = OFPUTIL_NXAST_RESUBMIT_TABLE; | |
4e022ec0 | 92 | resubmit->in_port = u16_to_ofp(ntohs(nar->in_port)); |
f25d0cf3 BP |
93 | resubmit->table_id = nar->table; |
94 | return 0; | |
95 | } | |
96 | ||
97 | static enum ofperr | |
98 | output_reg_from_openflow(const struct nx_action_output_reg *naor, | |
99 | struct ofpbuf *out) | |
100 | { | |
101 | struct ofpact_output_reg *output_reg; | |
102 | ||
103 | if (!is_all_zeros(naor->zero, sizeof naor->zero)) { | |
104 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
105 | } | |
106 | ||
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); | |
112 | ||
113 | return mf_check_src(&output_reg->src, NULL); | |
114 | } | |
115 | ||
116 | static void | |
117 | fin_timeout_from_openflow(const struct nx_action_fin_timeout *naft, | |
118 | struct ofpbuf *out) | |
119 | { | |
120 | struct ofpact_fin_timeout *oft; | |
121 | ||
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); | |
125 | } | |
126 | ||
127 | static void | |
128 | controller_from_openflow(const struct nx_action_controller *nac, | |
129 | struct ofpbuf *out) | |
130 | { | |
131 | struct ofpact_controller *oc; | |
132 | ||
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; | |
137 | } | |
138 | ||
4cceacb9 JS |
139 | static enum ofperr |
140 | metadata_from_nxast(const struct nx_action_write_metadata *nawm, | |
141 | struct ofpbuf *out) | |
142 | { | |
143 | struct ofpact_metadata *om; | |
144 | ||
145 | if (!is_all_zeros(nawm->zeros, sizeof nawm->zeros)) { | |
146 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
147 | } | |
148 | ||
149 | om = ofpact_put_WRITE_METADATA(out); | |
150 | om->metadata = nawm->metadata; | |
151 | om->mask = nawm->mask; | |
152 | ||
153 | return 0; | |
154 | } | |
155 | ||
f25d0cf3 BP |
156 | static void |
157 | note_from_openflow(const struct nx_action_note *nan, struct ofpbuf *out) | |
158 | { | |
159 | struct ofpact_note *note; | |
160 | unsigned int length; | |
161 | ||
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); | |
167 | } | |
168 | ||
c2d967a5 | 169 | static enum ofperr |
7bcb1506 | 170 | dec_ttl_from_openflow(struct ofpbuf *out, enum ofputil_action_code compat) |
c2d967a5 MM |
171 | { |
172 | uint16_t id = 0; | |
173 | struct ofpact_cnt_ids *ids; | |
174 | enum ofperr error = 0; | |
175 | ||
176 | ids = ofpact_put_DEC_TTL(out); | |
7bcb1506 | 177 | ids->ofpact.compat = compat; |
c2d967a5 MM |
178 | ids->n_controllers = 1; |
179 | ofpbuf_put(out, &id, sizeof id); | |
180 | ids = out->l2; | |
181 | ofpact_update_len(out, &ids->ofpact); | |
182 | return error; | |
183 | } | |
184 | ||
185 | static enum ofperr | |
186 | dec_ttl_cnt_ids_from_openflow(const struct nx_action_cnt_ids *nac_ids, | |
187 | struct ofpbuf *out) | |
188 | { | |
189 | struct ofpact_cnt_ids *ids; | |
190 | size_t ids_size; | |
191 | int i; | |
192 | ||
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; | |
197 | ||
198 | if (!is_all_zeros(nac_ids->zeros, sizeof nac_ids->zeros)) { | |
199 | return OFPERR_NXBRC_MUST_BE_ZERO; | |
200 | } | |
201 | ||
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; | |
208 | } | |
209 | ||
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); | |
e655542c | 213 | ids = out->l2; |
c2d967a5 MM |
214 | } |
215 | ||
c2d967a5 MM |
216 | ofpact_update_len(out, &ids->ofpact); |
217 | ||
218 | return 0; | |
219 | } | |
220 | ||
29089a54 RL |
221 | static enum ofperr |
222 | sample_from_openflow(const struct nx_action_sample *nas, | |
223 | struct ofpbuf *out) | |
224 | { | |
225 | struct ofpact_sample *sample; | |
226 | ||
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); | |
232 | ||
233 | if (sample->probability == 0) { | |
234 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
235 | } | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
f25d0cf3 BP |
240 | static enum ofperr |
241 | decode_nxast_action(const union ofp_action *a, enum ofputil_action_code *code) | |
242 | { | |
243 | const struct nx_action_header *nah = (const struct nx_action_header *) a; | |
244 | uint16_t len = ntohs(a->header.len); | |
245 | ||
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; | |
250 | } | |
251 | ||
252 | switch (nah->subtype) { | |
253 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
254 | case CONSTANT_HTONS(ENUM): \ | |
255 | if (EXTENSIBLE \ | |
256 | ? len >= sizeof(struct STRUCT) \ | |
257 | : len == sizeof(struct STRUCT)) { \ | |
258 | *code = OFPUTIL_##ENUM; \ | |
259 | return 0; \ | |
260 | } else { \ | |
261 | return OFPERR_OFPBAC_BAD_LEN; \ | |
262 | } \ | |
263 | NOT_REACHED(); | |
264 | #include "ofp-util.def" | |
265 | ||
266 | case CONSTANT_HTONS(NXAST_SNAT__OBSOLETE): | |
267 | case CONSTANT_HTONS(NXAST_DROP_SPOOFED_ARP__OBSOLETE): | |
268 | default: | |
269 | return OFPERR_OFPBAC_BAD_TYPE; | |
270 | } | |
271 | } | |
272 | ||
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. | |
276 | * | |
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'). | |
280 | * | |
281 | * This function verifies that 'a''s length is correct for the type of action | |
282 | * that it represents. */ | |
283 | static enum ofperr | |
284 | decode_openflow10_action(const union ofp_action *a, | |
285 | enum ofputil_action_code *code) | |
286 | { | |
287 | switch (a->type) { | |
288 | case CONSTANT_HTONS(OFPAT10_VENDOR): | |
289 | return decode_nxast_action(a, code); | |
290 | ||
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; \ | |
295 | return 0; \ | |
296 | } else { \ | |
297 | return OFPERR_OFPBAC_BAD_LEN; \ | |
298 | } \ | |
299 | break; | |
300 | #include "ofp-util.def" | |
301 | ||
302 | default: | |
303 | return OFPERR_OFPBAC_BAD_TYPE; | |
304 | } | |
305 | } | |
306 | ||
307 | static enum ofperr | |
d01c980f BP |
308 | ofpact_from_nxast(const union ofp_action *a, enum ofputil_action_code code, |
309 | struct ofpbuf *out) | |
f25d0cf3 BP |
310 | { |
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; | |
4cceacb9 | 316 | const struct nx_action_write_metadata *nawm; |
f25d0cf3 | 317 | struct ofpact_tunnel *tunnel; |
d01c980f | 318 | enum ofperr error = 0; |
f25d0cf3 BP |
319 | |
320 | switch (code) { | |
321 | case OFPUTIL_ACTION_INVALID: | |
d01c980f | 322 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM: |
3ddcaf2d | 323 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM: |
d01c980f | 324 | #include "ofp-util.def" |
f25d0cf3 BP |
325 | NOT_REACHED(); |
326 | ||
f25d0cf3 BP |
327 | case OFPUTIL_NXAST_RESUBMIT: |
328 | resubmit_from_openflow((const struct nx_action_resubmit *) a, out); | |
329 | break; | |
330 | ||
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); | |
336 | break; | |
337 | ||
4cceacb9 | 338 | case OFPUTIL_NXAST_WRITE_METADATA: |
db5a1019 | 339 | nawm = ALIGNED_CAST(const struct nx_action_write_metadata *, a); |
4cceacb9 JS |
340 | error = metadata_from_nxast(nawm, out); |
341 | break; | |
342 | ||
f25d0cf3 BP |
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); | |
346 | break; | |
347 | ||
348 | case OFPUTIL_NXAST_POP_QUEUE: | |
349 | ofpact_put_POP_QUEUE(out); | |
350 | break; | |
351 | ||
352 | case OFPUTIL_NXAST_REG_MOVE: | |
353 | error = nxm_reg_move_from_openflow( | |
354 | (const struct nx_action_reg_move *) a, out); | |
355 | break; | |
356 | ||
357 | case OFPUTIL_NXAST_REG_LOAD: | |
358 | error = nxm_reg_load_from_openflow( | |
db5a1019 | 359 | ALIGNED_CAST(const struct nx_action_reg_load *, a), out); |
f25d0cf3 BP |
360 | break; |
361 | ||
bd85dac1 AZ |
362 | case OFPUTIL_NXAST_STACK_PUSH: |
363 | error = nxm_stack_push_from_openflow( | |
364 | (const struct nx_action_stack *) a, out); | |
365 | break; | |
366 | ||
367 | case OFPUTIL_NXAST_STACK_POP: | |
368 | error = nxm_stack_pop_from_openflow( | |
369 | (const struct nx_action_stack *) a, out); | |
370 | break; | |
371 | ||
f25d0cf3 BP |
372 | case OFPUTIL_NXAST_NOTE: |
373 | nan = (const struct nx_action_note *) a; | |
374 | note_from_openflow(nan, out); | |
375 | break; | |
376 | ||
377 | case OFPUTIL_NXAST_SET_TUNNEL64: | |
db5a1019 | 378 | nast64 = ALIGNED_CAST(const struct nx_action_set_tunnel64 *, a); |
f25d0cf3 BP |
379 | tunnel = ofpact_put_SET_TUNNEL(out); |
380 | tunnel->ofpact.compat = code; | |
381 | tunnel->tun_id = ntohll(nast64->tun_id); | |
382 | break; | |
383 | ||
384 | case OFPUTIL_NXAST_MULTIPATH: | |
385 | error = multipath_from_openflow((const struct nx_action_multipath *) a, | |
386 | ofpact_put_MULTIPATH(out)); | |
387 | break; | |
388 | ||
f25d0cf3 BP |
389 | case OFPUTIL_NXAST_BUNDLE: |
390 | case OFPUTIL_NXAST_BUNDLE_LOAD: | |
391 | error = bundle_from_openflow((const struct nx_action_bundle *) a, out); | |
392 | break; | |
393 | ||
394 | case OFPUTIL_NXAST_OUTPUT_REG: | |
395 | error = output_reg_from_openflow( | |
396 | (const struct nx_action_output_reg *) a, out); | |
397 | break; | |
398 | ||
399 | case OFPUTIL_NXAST_RESUBMIT_TABLE: | |
400 | nar = (const struct nx_action_resubmit *) a; | |
401 | error = resubmit_table_from_openflow(nar, out); | |
402 | break; | |
403 | ||
404 | case OFPUTIL_NXAST_LEARN: | |
db5a1019 AW |
405 | error = learn_from_openflow( |
406 | ALIGNED_CAST(const struct nx_action_learn *, a), out); | |
f25d0cf3 BP |
407 | break; |
408 | ||
409 | case OFPUTIL_NXAST_EXIT: | |
410 | ofpact_put_EXIT(out); | |
411 | break; | |
412 | ||
413 | case OFPUTIL_NXAST_DEC_TTL: | |
7bcb1506 | 414 | error = dec_ttl_from_openflow(out, code); |
c2d967a5 MM |
415 | break; |
416 | ||
417 | case OFPUTIL_NXAST_DEC_TTL_CNT_IDS: | |
418 | error = dec_ttl_cnt_ids_from_openflow( | |
419 | (const struct nx_action_cnt_ids *) a, out); | |
f25d0cf3 BP |
420 | break; |
421 | ||
422 | case OFPUTIL_NXAST_FIN_TIMEOUT: | |
423 | fin_timeout_from_openflow( | |
424 | (const struct nx_action_fin_timeout *) a, out); | |
425 | break; | |
426 | ||
427 | case OFPUTIL_NXAST_CONTROLLER: | |
428 | controller_from_openflow((const struct nx_action_controller *) a, out); | |
429 | break; | |
b02475c5 SH |
430 | |
431 | case OFPUTIL_NXAST_PUSH_MPLS: { | |
432 | struct nx_action_push_mpls *nxapm = (struct nx_action_push_mpls *)a; | |
433 | if (!eth_type_mpls(nxapm->ethertype)) { | |
434 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
435 | } | |
436 | ofpact_put_PUSH_MPLS(out)->ethertype = nxapm->ethertype; | |
437 | break; | |
438 | } | |
439 | ||
0f3f3c3d SH |
440 | case OFPUTIL_NXAST_SET_MPLS_TTL: { |
441 | struct nx_action_mpls_ttl *nxamt = (struct nx_action_mpls_ttl *)a; | |
442 | ofpact_put_SET_MPLS_TTL(out)->ttl = nxamt->ttl; | |
443 | break; | |
444 | } | |
445 | ||
b676167a SH |
446 | case OFPUTIL_NXAST_DEC_MPLS_TTL: |
447 | ofpact_put_DEC_MPLS_TTL(out); | |
448 | break; | |
449 | ||
b02475c5 SH |
450 | case OFPUTIL_NXAST_POP_MPLS: { |
451 | struct nx_action_pop_mpls *nxapm = (struct nx_action_pop_mpls *)a; | |
452 | if (eth_type_mpls(nxapm->ethertype)) { | |
453 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
454 | } | |
455 | ofpact_put_POP_MPLS(out)->ethertype = nxapm->ethertype; | |
456 | break; | |
457 | } | |
29089a54 RL |
458 | |
459 | case OFPUTIL_NXAST_SAMPLE: | |
460 | error = sample_from_openflow( | |
461 | (const struct nx_action_sample *) a, out); | |
462 | break; | |
f25d0cf3 BP |
463 | } |
464 | ||
465 | return error; | |
466 | } | |
467 | ||
d01c980f BP |
468 | static enum ofperr |
469 | ofpact_from_openflow10(const union ofp_action *a, struct ofpbuf *out) | |
470 | { | |
471 | enum ofputil_action_code code; | |
472 | enum ofperr error; | |
473 | ||
474 | error = decode_openflow10_action(a, &code); | |
475 | if (error) { | |
476 | return error; | |
477 | } | |
478 | ||
479 | switch (code) { | |
480 | case OFPUTIL_ACTION_INVALID: | |
3ddcaf2d | 481 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM: |
d01c980f BP |
482 | #include "ofp-util.def" |
483 | NOT_REACHED(); | |
484 | ||
485 | case OFPUTIL_OFPAT10_OUTPUT: | |
486 | return output_from_openflow10(&a->output10, out); | |
487 | ||
488 | case OFPUTIL_OFPAT10_SET_VLAN_VID: | |
489 | if (a->vlan_vid.vlan_vid & ~htons(0xfff)) { | |
490 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
491 | } | |
492 | ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid); | |
493 | break; | |
494 | ||
495 | case OFPUTIL_OFPAT10_SET_VLAN_PCP: | |
496 | if (a->vlan_pcp.vlan_pcp & ~7) { | |
497 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
498 | } | |
499 | ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp; | |
500 | break; | |
501 | ||
502 | case OFPUTIL_OFPAT10_STRIP_VLAN: | |
503 | ofpact_put_STRIP_VLAN(out); | |
504 | break; | |
505 | ||
506 | case OFPUTIL_OFPAT10_SET_DL_SRC: | |
507 | memcpy(ofpact_put_SET_ETH_SRC(out)->mac, | |
508 | ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN); | |
509 | break; | |
510 | ||
511 | case OFPUTIL_OFPAT10_SET_DL_DST: | |
512 | memcpy(ofpact_put_SET_ETH_DST(out)->mac, | |
513 | ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN); | |
514 | break; | |
515 | ||
516 | case OFPUTIL_OFPAT10_SET_NW_SRC: | |
517 | ofpact_put_SET_IPV4_SRC(out)->ipv4 = a->nw_addr.nw_addr; | |
518 | break; | |
519 | ||
520 | case OFPUTIL_OFPAT10_SET_NW_DST: | |
521 | ofpact_put_SET_IPV4_DST(out)->ipv4 = a->nw_addr.nw_addr; | |
522 | break; | |
523 | ||
524 | case OFPUTIL_OFPAT10_SET_NW_TOS: | |
525 | if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) { | |
526 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
527 | } | |
528 | ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos; | |
529 | break; | |
530 | ||
531 | case OFPUTIL_OFPAT10_SET_TP_SRC: | |
532 | ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port); | |
533 | break; | |
534 | ||
535 | case OFPUTIL_OFPAT10_SET_TP_DST: | |
536 | ofpact_put_SET_L4_DST_PORT(out)->port = ntohs(a->tp_port.tp_port); | |
537 | ||
538 | break; | |
539 | ||
540 | case OFPUTIL_OFPAT10_ENQUEUE: | |
31a9e63f | 541 | error = enqueue_from_openflow10((const struct ofp10_action_enqueue *) a, |
d01c980f BP |
542 | out); |
543 | break; | |
544 | ||
545 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM: | |
546 | #include "ofp-util.def" | |
547 | return ofpact_from_nxast(a, code, out); | |
548 | } | |
549 | ||
550 | return error; | |
551 | } | |
552 | ||
f25d0cf3 BP |
553 | static inline union ofp_action * |
554 | action_next(const union ofp_action *a) | |
555 | { | |
556 | return ((union ofp_action *) (void *) | |
557 | ((uint8_t *) a + ntohs(a->header.len))); | |
558 | } | |
559 | ||
560 | static inline bool | |
561 | action_is_valid(const union ofp_action *a, size_t n_actions) | |
562 | { | |
563 | uint16_t len = ntohs(a->header.len); | |
564 | return (!(len % OFP_ACTION_ALIGN) | |
565 | && len >= sizeof *a | |
566 | && len / sizeof *a <= n_actions); | |
567 | } | |
568 | ||
569 | /* This macro is careful to check for actions with bad lengths. */ | |
570 | #define ACTION_FOR_EACH(ITER, LEFT, ACTIONS, N_ACTIONS) \ | |
571 | for ((ITER) = (ACTIONS), (LEFT) = (N_ACTIONS); \ | |
572 | (LEFT) > 0 && action_is_valid(ITER, LEFT); \ | |
573 | ((LEFT) -= ntohs((ITER)->header.len) / sizeof(union ofp_action), \ | |
574 | (ITER) = action_next(ITER))) | |
575 | ||
699dddf1 BP |
576 | static void |
577 | log_bad_action(const union ofp_action *actions, size_t n_actions, size_t ofs, | |
578 | enum ofperr error) | |
579 | { | |
580 | if (!VLOG_DROP_WARN(&rl)) { | |
581 | struct ds s; | |
582 | ||
583 | ds_init(&s); | |
584 | ds_put_hex_dump(&s, actions, n_actions * sizeof *actions, 0, false); | |
585 | VLOG_WARN("bad action at offset %#zx (%s):\n%s", | |
586 | ofs * sizeof *actions, ofperr_get_name(error), ds_cstr(&s)); | |
587 | ds_destroy(&s); | |
588 | } | |
589 | } | |
590 | ||
f25d0cf3 | 591 | static enum ofperr |
0300caaf IY |
592 | ofpacts_from_openflow(const union ofp_action *in, size_t n_in, |
593 | struct ofpbuf *out, | |
594 | enum ofperr (*ofpact_from_openflow)( | |
595 | const union ofp_action *a, struct ofpbuf *out)) | |
f25d0cf3 BP |
596 | { |
597 | const union ofp_action *a; | |
598 | size_t left; | |
599 | ||
600 | ACTION_FOR_EACH (a, left, in, n_in) { | |
0300caaf | 601 | enum ofperr error = ofpact_from_openflow(a, out); |
f25d0cf3 | 602 | if (error) { |
699dddf1 | 603 | log_bad_action(in, n_in, a - in, error); |
f25d0cf3 BP |
604 | return error; |
605 | } | |
606 | } | |
607 | if (left) { | |
699dddf1 BP |
608 | enum ofperr error = OFPERR_OFPBAC_BAD_LEN; |
609 | log_bad_action(in, n_in, n_in - left, error); | |
610 | return error; | |
f25d0cf3 BP |
611 | } |
612 | ||
613 | ofpact_pad(out); | |
614 | return 0; | |
615 | } | |
616 | ||
0300caaf IY |
617 | static enum ofperr |
618 | ofpacts_from_openflow10(const union ofp_action *in, size_t n_in, | |
619 | struct ofpbuf *out) | |
620 | { | |
621 | return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow10); | |
622 | } | |
623 | ||
d01c980f BP |
624 | static enum ofperr |
625 | ofpacts_pull_actions(struct ofpbuf *openflow, unsigned int actions_len, | |
626 | struct ofpbuf *ofpacts, | |
627 | enum ofperr (*translate)(const union ofp_action *actions, | |
628 | size_t n_actions, | |
629 | struct ofpbuf *ofpacts)) | |
f25d0cf3 BP |
630 | { |
631 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
632 | const union ofp_action *actions; | |
633 | enum ofperr error; | |
634 | ||
635 | ofpbuf_clear(ofpacts); | |
636 | ||
637 | if (actions_len % OFP_ACTION_ALIGN != 0) { | |
638 | VLOG_WARN_RL(&rl, "OpenFlow message actions length %u is not a " | |
639 | "multiple of %d", actions_len, OFP_ACTION_ALIGN); | |
640 | return OFPERR_OFPBRC_BAD_LEN; | |
641 | } | |
642 | ||
643 | actions = ofpbuf_try_pull(openflow, actions_len); | |
644 | if (actions == NULL) { | |
645 | VLOG_WARN_RL(&rl, "OpenFlow message actions length %u exceeds " | |
646 | "remaining message length (%zu)", | |
647 | actions_len, openflow->size); | |
648 | return OFPERR_OFPBRC_BAD_LEN; | |
649 | } | |
650 | ||
d01c980f | 651 | error = translate(actions, actions_len / OFP_ACTION_ALIGN, ofpacts); |
4cceacb9 JS |
652 | if (error) { |
653 | ofpbuf_clear(ofpacts); | |
654 | return error; | |
655 | } | |
656 | ||
657 | error = ofpacts_verify(ofpacts->data, ofpacts->size); | |
f25d0cf3 BP |
658 | if (error) { |
659 | ofpbuf_clear(ofpacts); | |
660 | } | |
d01c980f BP |
661 | return error; |
662 | } | |
663 | ||
664 | /* Attempts to convert 'actions_len' bytes of OpenFlow 1.0 actions from the | |
665 | * front of 'openflow' into ofpacts. On success, replaces any existing content | |
666 | * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'. | |
667 | * Returns 0 if successful, otherwise an OpenFlow error. | |
668 | * | |
13f894b1 BP |
669 | * The parsed actions are valid generically, but they may not be valid in a |
670 | * specific context. For example, port numbers up to OFPP_MAX are valid | |
671 | * generically, but specific datapaths may only support port numbers in a | |
672 | * smaller range. Use ofpacts_check() to additional check whether actions are | |
673 | * valid in a specific context. */ | |
d01c980f BP |
674 | enum ofperr |
675 | ofpacts_pull_openflow10(struct ofpbuf *openflow, unsigned int actions_len, | |
676 | struct ofpbuf *ofpacts) | |
677 | { | |
678 | return ofpacts_pull_actions(openflow, actions_len, ofpacts, | |
679 | ofpacts_from_openflow10); | |
680 | } | |
681 | \f | |
682 | /* OpenFlow 1.1 actions. */ | |
683 | ||
684 | /* Parses 'a' to determine its type. On success stores the correct type into | |
685 | * '*code' and returns 0. On failure returns an OFPERR_* error code and | |
686 | * '*code' is indeterminate. | |
687 | * | |
688 | * The caller must have already verified that 'a''s length is potentially | |
689 | * correct (that is, a->header.len is nonzero and a multiple of sizeof(union | |
690 | * ofp_action) and no longer than the amount of space allocated to 'a'). | |
691 | * | |
692 | * This function verifies that 'a''s length is correct for the type of action | |
693 | * that it represents. */ | |
694 | static enum ofperr | |
695 | decode_openflow11_action(const union ofp_action *a, | |
696 | enum ofputil_action_code *code) | |
697 | { | |
3ddcaf2d BP |
698 | uint16_t len; |
699 | ||
d01c980f BP |
700 | switch (a->type) { |
701 | case CONSTANT_HTONS(OFPAT11_EXPERIMENTER): | |
702 | return decode_nxast_action(a, code); | |
703 | ||
3ddcaf2d BP |
704 | #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
705 | case CONSTANT_HTONS(ENUM): \ | |
706 | len = ntohs(a->header.len); \ | |
707 | if (EXTENSIBLE \ | |
708 | ? len >= sizeof(struct STRUCT) \ | |
709 | : len == sizeof(struct STRUCT)) { \ | |
710 | *code = OFPUTIL_##ENUM; \ | |
711 | return 0; \ | |
712 | } else { \ | |
713 | return OFPERR_OFPBAC_BAD_LEN; \ | |
714 | } \ | |
715 | NOT_REACHED(); | |
d01c980f BP |
716 | #include "ofp-util.def" |
717 | ||
718 | default: | |
719 | return OFPERR_OFPBAC_BAD_TYPE; | |
720 | } | |
721 | } | |
722 | ||
723 | static enum ofperr | |
724 | output_from_openflow11(const struct ofp11_action_output *oao, | |
725 | struct ofpbuf *out) | |
726 | { | |
727 | struct ofpact_output *output; | |
728 | enum ofperr error; | |
729 | ||
730 | output = ofpact_put_OUTPUT(out); | |
731 | output->max_len = ntohs(oao->max_len); | |
732 | ||
733 | error = ofputil_port_from_ofp11(oao->port, &output->port); | |
734 | if (error) { | |
735 | return error; | |
736 | } | |
737 | ||
738 | return ofputil_check_output_port(output->port, OFPP_MAX); | |
739 | } | |
740 | ||
741 | static enum ofperr | |
742 | ofpact_from_openflow11(const union ofp_action *a, struct ofpbuf *out) | |
743 | { | |
744 | enum ofputil_action_code code; | |
745 | enum ofperr error; | |
746 | ||
747 | error = decode_openflow11_action(a, &code); | |
748 | if (error) { | |
749 | return error; | |
750 | } | |
751 | ||
752 | switch (code) { | |
753 | case OFPUTIL_ACTION_INVALID: | |
754 | #define OFPAT10_ACTION(ENUM, STRUCT, NAME) case OFPUTIL_##ENUM: | |
755 | #include "ofp-util.def" | |
756 | NOT_REACHED(); | |
757 | ||
758 | case OFPUTIL_OFPAT11_OUTPUT: | |
759 | return output_from_openflow11((const struct ofp11_action_output *) a, | |
760 | out); | |
761 | ||
762 | case OFPUTIL_OFPAT11_SET_VLAN_VID: | |
763 | if (a->vlan_vid.vlan_vid & ~htons(0xfff)) { | |
764 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
765 | } | |
766 | ofpact_put_SET_VLAN_VID(out)->vlan_vid = ntohs(a->vlan_vid.vlan_vid); | |
767 | break; | |
768 | ||
769 | case OFPUTIL_OFPAT11_SET_VLAN_PCP: | |
770 | if (a->vlan_pcp.vlan_pcp & ~7) { | |
771 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
772 | } | |
773 | ofpact_put_SET_VLAN_PCP(out)->vlan_pcp = a->vlan_pcp.vlan_pcp; | |
774 | break; | |
775 | ||
3e34fbdd IY |
776 | case OFPUTIL_OFPAT11_PUSH_VLAN: |
777 | if (((const struct ofp11_action_push *)a)->ethertype != | |
778 | htons(ETH_TYPE_VLAN_8021Q)) { | |
5dca28b5 | 779 | /* XXX 802.1AD(QinQ) isn't supported at the moment */ |
15549878 | 780 | return OFPERR_OFPBAC_BAD_ARGUMENT; |
3e34fbdd IY |
781 | } |
782 | ofpact_put_PUSH_VLAN(out); | |
783 | break; | |
784 | ||
8e61c110 IY |
785 | case OFPUTIL_OFPAT11_POP_VLAN: |
786 | ofpact_put_STRIP_VLAN(out); | |
787 | break; | |
788 | ||
276c4e7a SH |
789 | case OFPUTIL_OFPAT11_SET_QUEUE: |
790 | ofpact_put_SET_QUEUE(out)->queue_id = | |
791 | ntohl(((const struct ofp11_action_set_queue *)a)->queue_id); | |
792 | break; | |
793 | ||
d01c980f BP |
794 | case OFPUTIL_OFPAT11_SET_DL_SRC: |
795 | memcpy(ofpact_put_SET_ETH_SRC(out)->mac, | |
796 | ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN); | |
797 | break; | |
798 | ||
799 | case OFPUTIL_OFPAT11_SET_DL_DST: | |
800 | memcpy(ofpact_put_SET_ETH_DST(out)->mac, | |
801 | ((const struct ofp_action_dl_addr *) a)->dl_addr, ETH_ADDR_LEN); | |
802 | break; | |
803 | ||
7bcb1506 IY |
804 | case OFPUTIL_OFPAT11_DEC_NW_TTL: |
805 | dec_ttl_from_openflow(out, code); | |
806 | break; | |
807 | ||
d01c980f BP |
808 | case OFPUTIL_OFPAT11_SET_NW_SRC: |
809 | ofpact_put_SET_IPV4_SRC(out)->ipv4 = a->nw_addr.nw_addr; | |
810 | break; | |
811 | ||
812 | case OFPUTIL_OFPAT11_SET_NW_DST: | |
813 | ofpact_put_SET_IPV4_DST(out)->ipv4 = a->nw_addr.nw_addr; | |
814 | break; | |
815 | ||
816 | case OFPUTIL_OFPAT11_SET_NW_TOS: | |
817 | if (a->nw_tos.nw_tos & ~IP_DSCP_MASK) { | |
818 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
819 | } | |
820 | ofpact_put_SET_IPV4_DSCP(out)->dscp = a->nw_tos.nw_tos; | |
821 | break; | |
822 | ||
823 | case OFPUTIL_OFPAT11_SET_TP_SRC: | |
824 | ofpact_put_SET_L4_SRC_PORT(out)->port = ntohs(a->tp_port.tp_port); | |
825 | break; | |
826 | ||
827 | case OFPUTIL_OFPAT11_SET_TP_DST: | |
828 | ofpact_put_SET_L4_DST_PORT(out)->port = ntohs(a->tp_port.tp_port); | |
829 | break; | |
830 | ||
e9536ecb | 831 | case OFPUTIL_OFPAT12_SET_FIELD: |
d55b18c8 IY |
832 | return nxm_reg_load_from_openflow12_set_field( |
833 | (const struct ofp12_action_set_field *)a, out); | |
e9536ecb | 834 | |
0f3f3c3d SH |
835 | case OFPUTIL_OFPAT11_SET_MPLS_TTL: { |
836 | struct ofp11_action_mpls_ttl *oamt = (struct ofp11_action_mpls_ttl *)a; | |
837 | ofpact_put_SET_MPLS_TTL(out)->ttl = oamt->mpls_ttl; | |
838 | break; | |
839 | } | |
840 | ||
b676167a SH |
841 | case OFPUTIL_OFPAT11_DEC_MPLS_TTL: |
842 | ofpact_put_DEC_MPLS_TTL(out); | |
843 | break; | |
844 | ||
b02475c5 SH |
845 | case OFPUTIL_OFPAT11_PUSH_MPLS: { |
846 | struct ofp11_action_push *oap = (struct ofp11_action_push *)a; | |
847 | if (!eth_type_mpls(oap->ethertype)) { | |
848 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
849 | } | |
850 | ofpact_put_PUSH_MPLS(out)->ethertype = oap->ethertype; | |
851 | break; | |
852 | } | |
853 | ||
854 | case OFPUTIL_OFPAT11_POP_MPLS: { | |
855 | struct ofp11_action_pop_mpls *oapm = (struct ofp11_action_pop_mpls *)a; | |
856 | if (eth_type_mpls(oapm->ethertype)) { | |
857 | return OFPERR_OFPBAC_BAD_ARGUMENT; | |
858 | } | |
859 | ofpact_put_POP_MPLS(out)->ethertype = oapm->ethertype; | |
860 | break; | |
861 | } | |
862 | ||
d01c980f BP |
863 | #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) case OFPUTIL_##ENUM: |
864 | #include "ofp-util.def" | |
865 | return ofpact_from_nxast(a, code, out); | |
866 | } | |
867 | ||
868 | return error; | |
869 | } | |
870 | ||
871 | static enum ofperr | |
872 | ofpacts_from_openflow11(const union ofp_action *in, size_t n_in, | |
873 | struct ofpbuf *out) | |
874 | { | |
0300caaf | 875 | return ofpacts_from_openflow(in, n_in, out, ofpact_from_openflow11); |
f25d0cf3 BP |
876 | } |
877 | \f | |
d01c980f BP |
878 | /* OpenFlow 1.1 instructions. */ |
879 | ||
d01c980f | 880 | #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \ |
a359d5ad IY |
881 | static inline const struct STRUCT * \ |
882 | instruction_get_##ENUM(const struct ofp11_instruction *inst)\ | |
883 | { \ | |
cb22974d | 884 | ovs_assert(inst->type == htons(ENUM)); \ |
db5a1019 | 885 | return ALIGNED_CAST(struct STRUCT *, inst); \ |
a359d5ad IY |
886 | } \ |
887 | \ | |
d01c980f BP |
888 | static inline void \ |
889 | instruction_init_##ENUM(struct STRUCT *s) \ | |
890 | { \ | |
891 | memset(s, 0, sizeof *s); \ | |
892 | s->type = htons(ENUM); \ | |
893 | s->len = htons(sizeof *s); \ | |
894 | } \ | |
895 | \ | |
896 | static inline struct STRUCT * \ | |
897 | instruction_put_##ENUM(struct ofpbuf *buf) \ | |
898 | { \ | |
899 | struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \ | |
900 | instruction_init_##ENUM(s); \ | |
901 | return s; \ | |
902 | } | |
903 | OVS_INSTRUCTIONS | |
904 | #undef DEFINE_INST | |
905 | ||
a359d5ad IY |
906 | struct instruction_type_info { |
907 | enum ovs_instruction_type type; | |
908 | const char *name; | |
909 | }; | |
910 | ||
911 | static const struct instruction_type_info inst_info[] = { | |
912 | #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) {OVSINST_##ENUM, NAME}, | |
913 | OVS_INSTRUCTIONS | |
914 | #undef DEFINE_INST | |
915 | }; | |
916 | ||
917 | const char * | |
ba0bc9b0 | 918 | ovs_instruction_name_from_type(enum ovs_instruction_type type) |
a359d5ad | 919 | { |
6ae0fd54 | 920 | return inst_info[type].name; |
a359d5ad IY |
921 | } |
922 | ||
923 | int | |
ba0bc9b0 | 924 | ovs_instruction_type_from_name(const char *name) |
a359d5ad IY |
925 | { |
926 | const struct instruction_type_info *p; | |
927 | for (p = inst_info; p < &inst_info[ARRAY_SIZE(inst_info)]; p++) { | |
928 | if (!strcasecmp(name, p->name)) { | |
929 | return p->type; | |
930 | } | |
931 | } | |
932 | return -1; | |
933 | } | |
934 | ||
084c53de BP |
935 | enum ovs_instruction_type |
936 | ovs_instruction_type_from_ofpact_type(enum ofpact_type type) | |
937 | { | |
938 | switch (type) { | |
939 | case OFPACT_METER: | |
940 | return OVSINST_OFPIT13_METER; | |
941 | case OFPACT_CLEAR_ACTIONS: | |
942 | return OVSINST_OFPIT11_CLEAR_ACTIONS; | |
943 | case OFPACT_WRITE_METADATA: | |
944 | return OVSINST_OFPIT11_WRITE_METADATA; | |
945 | case OFPACT_GOTO_TABLE: | |
946 | return OVSINST_OFPIT11_GOTO_TABLE; | |
947 | case OFPACT_OUTPUT: | |
948 | case OFPACT_CONTROLLER: | |
949 | case OFPACT_ENQUEUE: | |
950 | case OFPACT_OUTPUT_REG: | |
951 | case OFPACT_BUNDLE: | |
952 | case OFPACT_SET_VLAN_VID: | |
953 | case OFPACT_SET_VLAN_PCP: | |
954 | case OFPACT_STRIP_VLAN: | |
955 | case OFPACT_PUSH_VLAN: | |
956 | case OFPACT_SET_ETH_SRC: | |
957 | case OFPACT_SET_ETH_DST: | |
958 | case OFPACT_SET_IPV4_SRC: | |
959 | case OFPACT_SET_IPV4_DST: | |
960 | case OFPACT_SET_IPV4_DSCP: | |
961 | case OFPACT_SET_L4_SRC_PORT: | |
962 | case OFPACT_SET_L4_DST_PORT: | |
963 | case OFPACT_REG_MOVE: | |
964 | case OFPACT_REG_LOAD: | |
965 | case OFPACT_STACK_PUSH: | |
966 | case OFPACT_STACK_POP: | |
967 | case OFPACT_DEC_TTL: | |
968 | case OFPACT_SET_MPLS_TTL: | |
969 | case OFPACT_DEC_MPLS_TTL: | |
970 | case OFPACT_PUSH_MPLS: | |
971 | case OFPACT_POP_MPLS: | |
972 | case OFPACT_SET_TUNNEL: | |
973 | case OFPACT_SET_QUEUE: | |
974 | case OFPACT_POP_QUEUE: | |
975 | case OFPACT_FIN_TIMEOUT: | |
976 | case OFPACT_RESUBMIT: | |
977 | case OFPACT_LEARN: | |
978 | case OFPACT_MULTIPATH: | |
979 | case OFPACT_NOTE: | |
980 | case OFPACT_EXIT: | |
981 | case OFPACT_SAMPLE: | |
982 | default: | |
983 | return OVSINST_OFPIT11_APPLY_ACTIONS; | |
984 | } | |
985 | } | |
986 | ||
d01c980f BP |
987 | static inline struct ofp11_instruction * |
988 | instruction_next(const struct ofp11_instruction *inst) | |
989 | { | |
990 | return ((struct ofp11_instruction *) (void *) | |
991 | ((uint8_t *) inst + ntohs(inst->len))); | |
992 | } | |
993 | ||
994 | static inline bool | |
995 | instruction_is_valid(const struct ofp11_instruction *inst, | |
996 | size_t n_instructions) | |
997 | { | |
998 | uint16_t len = ntohs(inst->len); | |
999 | return (!(len % OFP11_INSTRUCTION_ALIGN) | |
1000 | && len >= sizeof *inst | |
1001 | && len / sizeof *inst <= n_instructions); | |
1002 | } | |
1003 | ||
1004 | /* This macro is careful to check for instructions with bad lengths. */ | |
1005 | #define INSTRUCTION_FOR_EACH(ITER, LEFT, INSTRUCTIONS, N_INSTRUCTIONS) \ | |
1006 | for ((ITER) = (INSTRUCTIONS), (LEFT) = (N_INSTRUCTIONS); \ | |
1007 | (LEFT) > 0 && instruction_is_valid(ITER, LEFT); \ | |
1008 | ((LEFT) -= (ntohs((ITER)->len) \ | |
1009 | / sizeof(struct ofp11_instruction)), \ | |
1010 | (ITER) = instruction_next(ITER))) | |
1011 | ||
1012 | static enum ofperr | |
1013 | decode_openflow11_instruction(const struct ofp11_instruction *inst, | |
1014 | enum ovs_instruction_type *type) | |
1015 | { | |
1016 | uint16_t len = ntohs(inst->len); | |
1017 | ||
1018 | switch (inst->type) { | |
1019 | case CONSTANT_HTONS(OFPIT11_EXPERIMENTER): | |
1020 | return OFPERR_OFPBIC_BAD_EXPERIMENTER; | |
1021 | ||
1022 | #define DEFINE_INST(ENUM, STRUCT, EXTENSIBLE, NAME) \ | |
1023 | case CONSTANT_HTONS(ENUM): \ | |
1024 | if (EXTENSIBLE \ | |
1025 | ? len >= sizeof(struct STRUCT) \ | |
1026 | : len == sizeof(struct STRUCT)) { \ | |
1027 | *type = OVSINST_##ENUM; \ | |
1028 | return 0; \ | |
1029 | } else { \ | |
1030 | return OFPERR_OFPBIC_BAD_LEN; \ | |
1031 | } | |
1032 | OVS_INSTRUCTIONS | |
1033 | #undef DEFINE_INST | |
1034 | ||
1035 | default: | |
1036 | return OFPERR_OFPBIC_UNKNOWN_INST; | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | static enum ofperr | |
1041 | decode_openflow11_instructions(const struct ofp11_instruction insts[], | |
1042 | size_t n_insts, | |
1043 | const struct ofp11_instruction *out[]) | |
1044 | { | |
1045 | const struct ofp11_instruction *inst; | |
1046 | size_t left; | |
1047 | ||
1048 | memset(out, 0, N_OVS_INSTRUCTIONS * sizeof *out); | |
1049 | INSTRUCTION_FOR_EACH (inst, left, insts, n_insts) { | |
1050 | enum ovs_instruction_type type; | |
1051 | enum ofperr error; | |
1052 | ||
1053 | error = decode_openflow11_instruction(inst, &type); | |
1054 | if (error) { | |
1055 | return error; | |
1056 | } | |
1057 | ||
1058 | if (out[type]) { | |
f4104c68 | 1059 | return OFPERR_ONFBIC_DUP_INSTRUCTION; |
d01c980f BP |
1060 | } |
1061 | out[type] = inst; | |
1062 | } | |
1063 | ||
1064 | if (left) { | |
1065 | VLOG_WARN_RL(&rl, "bad instruction format at offset %zu", | |
1066 | (n_insts - left) * sizeof *inst); | |
1067 | return OFPERR_OFPBIC_BAD_LEN; | |
1068 | } | |
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | static void | |
1073 | get_actions_from_instruction(const struct ofp11_instruction *inst, | |
db5a1019 AW |
1074 | const union ofp_action **actions, |
1075 | size_t *n_actions) | |
d01c980f | 1076 | { |
db5a1019 | 1077 | *actions = ALIGNED_CAST(const union ofp_action *, inst + 1); |
d01c980f BP |
1078 | *n_actions = (ntohs(inst->len) - sizeof *inst) / OFP11_INSTRUCTION_ALIGN; |
1079 | } | |
1080 | ||
1081 | /* Attempts to convert 'actions_len' bytes of OpenFlow 1.1 actions from the | |
1082 | * front of 'openflow' into ofpacts. On success, replaces any existing content | |
1083 | * in 'ofpacts' by the converted ofpacts; on failure, clears 'ofpacts'. | |
1084 | * Returns 0 if successful, otherwise an OpenFlow error. | |
1085 | * | |
1086 | * In most places in OpenFlow 1.1 and 1.2, actions appear encapsulated in | |
1087 | * instructions, so you should call ofpacts_pull_openflow11_instructions() | |
1088 | * instead of this function. | |
1089 | * | |
13f894b1 BP |
1090 | * The parsed actions are valid generically, but they may not be valid in a |
1091 | * specific context. For example, port numbers up to OFPP_MAX are valid | |
1092 | * generically, but specific datapaths may only support port numbers in a | |
1093 | * smaller range. Use ofpacts_check() to additional check whether actions are | |
1094 | * valid in a specific context. */ | |
d01c980f BP |
1095 | enum ofperr |
1096 | ofpacts_pull_openflow11_actions(struct ofpbuf *openflow, | |
1097 | unsigned int actions_len, | |
1098 | struct ofpbuf *ofpacts) | |
1099 | { | |
0300caaf IY |
1100 | return ofpacts_pull_actions(openflow, actions_len, ofpacts, |
1101 | ofpacts_from_openflow11); | |
d01c980f BP |
1102 | } |
1103 | ||
1104 | enum ofperr | |
1105 | ofpacts_pull_openflow11_instructions(struct ofpbuf *openflow, | |
1106 | unsigned int instructions_len, | |
1107 | struct ofpbuf *ofpacts) | |
1108 | { | |
1109 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
1110 | const struct ofp11_instruction *instructions; | |
1111 | const struct ofp11_instruction *insts[N_OVS_INSTRUCTIONS]; | |
1112 | enum ofperr error; | |
1113 | ||
1114 | ofpbuf_clear(ofpacts); | |
1115 | ||
1116 | if (instructions_len % OFP11_INSTRUCTION_ALIGN != 0) { | |
1117 | VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u is not a " | |
1118 | "multiple of %d", | |
1119 | instructions_len, OFP11_INSTRUCTION_ALIGN); | |
1120 | error = OFPERR_OFPBIC_BAD_LEN; | |
1121 | goto exit; | |
1122 | } | |
1123 | ||
1124 | instructions = ofpbuf_try_pull(openflow, instructions_len); | |
1125 | if (instructions == NULL) { | |
1126 | VLOG_WARN_RL(&rl, "OpenFlow message instructions length %u exceeds " | |
1127 | "remaining message length (%zu)", | |
1128 | instructions_len, openflow->size); | |
1129 | error = OFPERR_OFPBIC_BAD_LEN; | |
1130 | goto exit; | |
1131 | } | |
1132 | ||
1133 | error = decode_openflow11_instructions( | |
1134 | instructions, instructions_len / OFP11_INSTRUCTION_ALIGN, | |
1135 | insts); | |
1136 | if (error) { | |
1137 | goto exit; | |
1138 | } | |
1139 | ||
638a19b0 JR |
1140 | if (insts[OVSINST_OFPIT13_METER]) { |
1141 | const struct ofp13_instruction_meter *oim; | |
1142 | struct ofpact_meter *om; | |
1143 | ||
db5a1019 AW |
1144 | oim = ALIGNED_CAST(const struct ofp13_instruction_meter *, |
1145 | insts[OVSINST_OFPIT13_METER]); | |
638a19b0 JR |
1146 | |
1147 | om = ofpact_put_METER(ofpacts); | |
1148 | om->meter_id = ntohl(oim->meter_id); | |
1149 | } | |
d01c980f BP |
1150 | if (insts[OVSINST_OFPIT11_APPLY_ACTIONS]) { |
1151 | const union ofp_action *actions; | |
1152 | size_t n_actions; | |
1153 | ||
1154 | get_actions_from_instruction(insts[OVSINST_OFPIT11_APPLY_ACTIONS], | |
1155 | &actions, &n_actions); | |
1156 | error = ofpacts_from_openflow11(actions, n_actions, ofpacts); | |
1157 | if (error) { | |
1158 | goto exit; | |
1159 | } | |
1160 | } | |
b19e8793 IY |
1161 | if (insts[OVSINST_OFPIT11_CLEAR_ACTIONS]) { |
1162 | instruction_get_OFPIT11_CLEAR_ACTIONS( | |
1163 | insts[OVSINST_OFPIT11_CLEAR_ACTIONS]); | |
1164 | ofpact_put_CLEAR_ACTIONS(ofpacts); | |
1165 | } | |
5dca28b5 | 1166 | /* XXX Write-Actions */ |
4cceacb9 JS |
1167 | if (insts[OVSINST_OFPIT11_WRITE_METADATA]) { |
1168 | const struct ofp11_instruction_write_metadata *oiwm; | |
1169 | struct ofpact_metadata *om; | |
1170 | ||
db5a1019 AW |
1171 | oiwm = ALIGNED_CAST(const struct ofp11_instruction_write_metadata *, |
1172 | insts[OVSINST_OFPIT11_WRITE_METADATA]); | |
4cceacb9 JS |
1173 | |
1174 | om = ofpact_put_WRITE_METADATA(ofpacts); | |
1175 | om->metadata = oiwm->metadata; | |
1176 | om->mask = oiwm->metadata_mask; | |
1177 | } | |
8dd54666 IY |
1178 | if (insts[OVSINST_OFPIT11_GOTO_TABLE]) { |
1179 | const struct ofp11_instruction_goto_table *oigt; | |
1180 | struct ofpact_goto_table *ogt; | |
1181 | ||
1182 | oigt = instruction_get_OFPIT11_GOTO_TABLE( | |
1183 | insts[OVSINST_OFPIT11_GOTO_TABLE]); | |
1184 | ogt = ofpact_put_GOTO_TABLE(ofpacts); | |
1185 | ogt->table_id = oigt->table_id; | |
1186 | } | |
d01c980f | 1187 | |
4cceacb9 | 1188 | if (insts[OVSINST_OFPIT11_WRITE_ACTIONS]) { |
d01c980f BP |
1189 | error = OFPERR_OFPBIC_UNSUP_INST; |
1190 | goto exit; | |
1191 | } | |
1192 | ||
4cceacb9 | 1193 | error = ofpacts_verify(ofpacts->data, ofpacts->size); |
d01c980f BP |
1194 | exit: |
1195 | if (error) { | |
1196 | ofpbuf_clear(ofpacts); | |
1197 | } | |
1198 | return error; | |
1199 | } | |
1200 | \f | |
eca39bce | 1201 | /* May modify flow->dl_type, caller must restore it. */ |
f25d0cf3 | 1202 | static enum ofperr |
e3b56933 JR |
1203 | ofpact_check__(const struct ofpact *a, struct flow *flow, ofp_port_t max_ports, |
1204 | uint8_t table_id) | |
f25d0cf3 BP |
1205 | { |
1206 | const struct ofpact_enqueue *enqueue; | |
1207 | ||
1208 | switch (a->type) { | |
1209 | case OFPACT_OUTPUT: | |
1210 | return ofputil_check_output_port(ofpact_get_OUTPUT(a)->port, | |
1211 | max_ports); | |
1212 | ||
1213 | case OFPACT_CONTROLLER: | |
1214 | return 0; | |
1215 | ||
1216 | case OFPACT_ENQUEUE: | |
1217 | enqueue = ofpact_get_ENQUEUE(a); | |
4e022ec0 AW |
1218 | if (ofp_to_u16(enqueue->port) >= ofp_to_u16(max_ports) |
1219 | && enqueue->port != OFPP_IN_PORT | |
f25d0cf3 BP |
1220 | && enqueue->port != OFPP_LOCAL) { |
1221 | return OFPERR_OFPBAC_BAD_OUT_PORT; | |
1222 | } | |
1223 | return 0; | |
1224 | ||
1225 | case OFPACT_OUTPUT_REG: | |
1226 | return mf_check_src(&ofpact_get_OUTPUT_REG(a)->src, flow); | |
1227 | ||
1228 | case OFPACT_BUNDLE: | |
1229 | return bundle_check(ofpact_get_BUNDLE(a), max_ports, flow); | |
1230 | ||
1231 | case OFPACT_SET_VLAN_VID: | |
1232 | case OFPACT_SET_VLAN_PCP: | |
1233 | case OFPACT_STRIP_VLAN: | |
3e34fbdd | 1234 | case OFPACT_PUSH_VLAN: |
f25d0cf3 BP |
1235 | case OFPACT_SET_ETH_SRC: |
1236 | case OFPACT_SET_ETH_DST: | |
1237 | case OFPACT_SET_IPV4_SRC: | |
1238 | case OFPACT_SET_IPV4_DST: | |
1239 | case OFPACT_SET_IPV4_DSCP: | |
1240 | case OFPACT_SET_L4_SRC_PORT: | |
1241 | case OFPACT_SET_L4_DST_PORT: | |
1242 | return 0; | |
1243 | ||
1244 | case OFPACT_REG_MOVE: | |
1245 | return nxm_reg_move_check(ofpact_get_REG_MOVE(a), flow); | |
1246 | ||
1247 | case OFPACT_REG_LOAD: | |
500d243d | 1248 | return nxm_reg_load_check(ofpact_get_REG_LOAD(a), flow); |
f25d0cf3 | 1249 | |
bd85dac1 AZ |
1250 | case OFPACT_STACK_PUSH: |
1251 | return nxm_stack_push_check(ofpact_get_STACK_PUSH(a), flow); | |
1252 | ||
1253 | case OFPACT_STACK_POP: | |
1254 | return nxm_stack_pop_check(ofpact_get_STACK_POP(a), flow); | |
1255 | ||
f25d0cf3 | 1256 | case OFPACT_DEC_TTL: |
0f3f3c3d | 1257 | case OFPACT_SET_MPLS_TTL: |
b676167a | 1258 | case OFPACT_DEC_MPLS_TTL: |
f25d0cf3 BP |
1259 | case OFPACT_SET_TUNNEL: |
1260 | case OFPACT_SET_QUEUE: | |
1261 | case OFPACT_POP_QUEUE: | |
1262 | case OFPACT_FIN_TIMEOUT: | |
1263 | case OFPACT_RESUBMIT: | |
1264 | return 0; | |
1265 | ||
1266 | case OFPACT_LEARN: | |
1267 | return learn_check(ofpact_get_LEARN(a), flow); | |
1268 | ||
1269 | case OFPACT_MULTIPATH: | |
1270 | return multipath_check(ofpact_get_MULTIPATH(a), flow); | |
1271 | ||
f25d0cf3 BP |
1272 | case OFPACT_NOTE: |
1273 | case OFPACT_EXIT: | |
1274 | return 0; | |
1275 | ||
b02475c5 | 1276 | case OFPACT_PUSH_MPLS: |
eca39bce | 1277 | flow->dl_type = ofpact_get_PUSH_MPLS(a)->ethertype; |
b02475c5 SH |
1278 | return 0; |
1279 | ||
1280 | case OFPACT_POP_MPLS: | |
eca39bce | 1281 | flow->dl_type = ofpact_get_POP_MPLS(a)->ethertype; |
b02475c5 SH |
1282 | return 0; |
1283 | ||
29089a54 RL |
1284 | case OFPACT_SAMPLE: |
1285 | return 0; | |
1286 | ||
b19e8793 | 1287 | case OFPACT_CLEAR_ACTIONS: |
4cceacb9 | 1288 | case OFPACT_WRITE_METADATA: |
8dd54666 IY |
1289 | return 0; |
1290 | ||
9cae45dc JR |
1291 | case OFPACT_METER: { |
1292 | uint32_t mid = ofpact_get_METER(a)->meter_id; | |
1293 | if (mid == 0 || mid > OFPM13_MAX) { | |
1294 | return OFPERR_OFPMMFC_INVALID_METER; | |
1295 | } | |
1296 | return 0; | |
1297 | } | |
e3b56933 JR |
1298 | |
1299 | case OFPACT_GOTO_TABLE: | |
1300 | if (ofpact_get_GOTO_TABLE(a)->table_id <= table_id) { | |
1301 | return OFPERR_OFPBRC_BAD_TABLE_ID; | |
1302 | } | |
1303 | return 0; | |
1304 | ||
f25d0cf3 BP |
1305 | default: |
1306 | NOT_REACHED(); | |
1307 | } | |
1308 | } | |
1309 | ||
1310 | /* Checks that the 'ofpacts_len' bytes of actions in 'ofpacts' are | |
1311 | * appropriate for a packet with the prerequisites satisfied by 'flow' in a | |
eca39bce JR |
1312 | * switch with no more than 'max_ports' ports. |
1313 | * | |
1314 | * May temporarily modify 'flow', but restores the changes before returning. */ | |
f25d0cf3 BP |
1315 | enum ofperr |
1316 | ofpacts_check(const struct ofpact ofpacts[], size_t ofpacts_len, | |
e3b56933 | 1317 | struct flow *flow, ofp_port_t max_ports, uint8_t table_id) |
f25d0cf3 BP |
1318 | { |
1319 | const struct ofpact *a; | |
b02475c5 | 1320 | ovs_be16 dl_type = flow->dl_type; |
eca39bce | 1321 | enum ofperr error = 0; |
f25d0cf3 BP |
1322 | |
1323 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
e3b56933 | 1324 | error = ofpact_check__(a, flow, max_ports, table_id); |
f25d0cf3 | 1325 | if (error) { |
eca39bce | 1326 | break; |
f25d0cf3 BP |
1327 | } |
1328 | } | |
eca39bce JR |
1329 | flow->dl_type = dl_type; /* Restore. */ |
1330 | return error; | |
f25d0cf3 | 1331 | } |
4cceacb9 JS |
1332 | |
1333 | /* Verifies that the 'ofpacts_len' bytes of actions in 'ofpacts' are | |
1334 | * in the appropriate order as defined by the OpenFlow spec. */ | |
1335 | enum ofperr | |
1336 | ofpacts_verify(const struct ofpact ofpacts[], size_t ofpacts_len) | |
1337 | { | |
1338 | const struct ofpact *a; | |
6813ee7c | 1339 | enum ovs_instruction_type inst; |
4cceacb9 | 1340 | |
6813ee7c | 1341 | inst = OVSINST_OFPIT11_APPLY_ACTIONS; |
4cceacb9 | 1342 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
6813ee7c BP |
1343 | enum ovs_instruction_type next; |
1344 | ||
084c53de | 1345 | next = ovs_instruction_type_from_ofpact_type(a->type); |
6813ee7c | 1346 | if (inst != OVSINST_OFPIT11_APPLY_ACTIONS && next <= inst) { |
ba0bc9b0 BP |
1347 | const char *name = ovs_instruction_name_from_type(inst); |
1348 | const char *next_name = ovs_instruction_name_from_type(next); | |
6813ee7c BP |
1349 | |
1350 | if (next == inst) { | |
1351 | VLOG_WARN("duplicate %s instruction not allowed, for OpenFlow " | |
1352 | "1.1+ compatibility", name); | |
4cceacb9 | 1353 | } else { |
6813ee7c BP |
1354 | VLOG_WARN("invalid instruction ordering: %s must appear " |
1355 | "before %s, for OpenFlow 1.1+ compatibility", | |
1356 | next_name, name); | |
4cceacb9 | 1357 | } |
6813ee7c | 1358 | return OFPERR_OFPBAC_UNSUPPORTED_ORDER; |
4cceacb9 JS |
1359 | } |
1360 | ||
6813ee7c | 1361 | inst = next; |
4cceacb9 JS |
1362 | } |
1363 | ||
1364 | return 0; | |
1365 | } | |
f25d0cf3 BP |
1366 | \f |
1367 | /* Converting ofpacts to Nicira OpenFlow extensions. */ | |
1368 | ||
1369 | static void | |
1370 | ofpact_output_reg_to_nxast(const struct ofpact_output_reg *output_reg, | |
1371 | struct ofpbuf *out) | |
1372 | { | |
1373 | struct nx_action_output_reg *naor = ofputil_put_NXAST_OUTPUT_REG(out); | |
1374 | ||
1375 | naor->ofs_nbits = nxm_encode_ofs_nbits(output_reg->src.ofs, | |
1376 | output_reg->src.n_bits); | |
1377 | naor->src = htonl(output_reg->src.field->nxm_header); | |
1378 | naor->max_len = htons(output_reg->max_len); | |
1379 | } | |
1380 | ||
1381 | static void | |
1382 | ofpact_resubmit_to_nxast(const struct ofpact_resubmit *resubmit, | |
1383 | struct ofpbuf *out) | |
1384 | { | |
1385 | struct nx_action_resubmit *nar; | |
1386 | ||
1387 | if (resubmit->table_id == 0xff | |
1388 | && resubmit->ofpact.compat != OFPUTIL_NXAST_RESUBMIT_TABLE) { | |
1389 | nar = ofputil_put_NXAST_RESUBMIT(out); | |
1390 | } else { | |
1391 | nar = ofputil_put_NXAST_RESUBMIT_TABLE(out); | |
1392 | nar->table = resubmit->table_id; | |
1393 | } | |
4e022ec0 | 1394 | nar->in_port = htons(ofp_to_u16(resubmit->in_port)); |
f25d0cf3 BP |
1395 | } |
1396 | ||
1397 | static void | |
1398 | ofpact_set_tunnel_to_nxast(const struct ofpact_tunnel *tunnel, | |
1399 | struct ofpbuf *out) | |
1400 | { | |
1401 | uint64_t tun_id = tunnel->tun_id; | |
1402 | ||
1403 | if (tun_id <= UINT32_MAX | |
1404 | && tunnel->ofpact.compat != OFPUTIL_NXAST_SET_TUNNEL64) { | |
1405 | ofputil_put_NXAST_SET_TUNNEL(out)->tun_id = htonl(tun_id); | |
1406 | } else { | |
1407 | ofputil_put_NXAST_SET_TUNNEL64(out)->tun_id = htonll(tun_id); | |
1408 | } | |
1409 | } | |
1410 | ||
4cceacb9 JS |
1411 | static void |
1412 | ofpact_write_metadata_to_nxast(const struct ofpact_metadata *om, | |
1413 | struct ofpbuf *out) | |
1414 | { | |
1415 | struct nx_action_write_metadata *nawm; | |
1416 | ||
1417 | nawm = ofputil_put_NXAST_WRITE_METADATA(out); | |
1418 | nawm->metadata = om->metadata; | |
1419 | nawm->mask = om->mask; | |
1420 | } | |
1421 | ||
f25d0cf3 BP |
1422 | static void |
1423 | ofpact_note_to_nxast(const struct ofpact_note *note, struct ofpbuf *out) | |
1424 | { | |
1425 | size_t start_ofs = out->size; | |
1426 | struct nx_action_note *nan; | |
1427 | unsigned int remainder; | |
1428 | unsigned int len; | |
1429 | ||
1430 | nan = ofputil_put_NXAST_NOTE(out); | |
1431 | out->size -= sizeof nan->note; | |
1432 | ||
1433 | ofpbuf_put(out, note->data, note->length); | |
1434 | ||
1435 | len = out->size - start_ofs; | |
1436 | remainder = len % OFP_ACTION_ALIGN; | |
1437 | if (remainder) { | |
1438 | ofpbuf_put_zeros(out, OFP_ACTION_ALIGN - remainder); | |
1439 | } | |
db5a1019 | 1440 | nan = ofpbuf_at(out, start_ofs, sizeof *nan); |
f25d0cf3 BP |
1441 | nan->len = htons(out->size - start_ofs); |
1442 | } | |
1443 | ||
1444 | static void | |
1445 | ofpact_controller_to_nxast(const struct ofpact_controller *oc, | |
1446 | struct ofpbuf *out) | |
1447 | { | |
1448 | struct nx_action_controller *nac; | |
1449 | ||
1450 | nac = ofputil_put_NXAST_CONTROLLER(out); | |
1451 | nac->max_len = htons(oc->max_len); | |
1452 | nac->controller_id = htons(oc->controller_id); | |
1453 | nac->reason = oc->reason; | |
1454 | } | |
1455 | ||
c2d967a5 MM |
1456 | static void |
1457 | ofpact_dec_ttl_to_nxast(const struct ofpact_cnt_ids *oc_ids, | |
1458 | struct ofpbuf *out) | |
1459 | { | |
1460 | if (oc_ids->ofpact.compat == OFPUTIL_NXAST_DEC_TTL) { | |
1461 | ofputil_put_NXAST_DEC_TTL(out); | |
1462 | } else { | |
1463 | struct nx_action_cnt_ids *nac_ids = | |
1464 | ofputil_put_NXAST_DEC_TTL_CNT_IDS(out); | |
1465 | int ids_len = ROUND_UP(2 * oc_ids->n_controllers, OFP_ACTION_ALIGN); | |
1466 | ovs_be16 *ids; | |
1467 | size_t i; | |
1468 | ||
1469 | nac_ids->len = htons(ntohs(nac_ids->len) + ids_len); | |
1470 | nac_ids->n_controllers = htons(oc_ids->n_controllers); | |
1471 | ||
1472 | ids = ofpbuf_put_zeros(out, ids_len); | |
1473 | for (i = 0; i < oc_ids->n_controllers; i++) { | |
1474 | ids[i] = htons(oc_ids->cnt_ids[i]); | |
1475 | } | |
1476 | } | |
1477 | } | |
1478 | ||
f25d0cf3 BP |
1479 | static void |
1480 | ofpact_fin_timeout_to_nxast(const struct ofpact_fin_timeout *fin_timeout, | |
1481 | struct ofpbuf *out) | |
1482 | { | |
1483 | struct nx_action_fin_timeout *naft = ofputil_put_NXAST_FIN_TIMEOUT(out); | |
1484 | naft->fin_idle_timeout = htons(fin_timeout->fin_idle_timeout); | |
1485 | naft->fin_hard_timeout = htons(fin_timeout->fin_hard_timeout); | |
1486 | } | |
1487 | ||
29089a54 RL |
1488 | static void |
1489 | ofpact_sample_to_nxast(const struct ofpact_sample *os, | |
1490 | struct ofpbuf *out) | |
1491 | { | |
1492 | struct nx_action_sample *nas; | |
1493 | ||
1494 | nas = ofputil_put_NXAST_SAMPLE(out); | |
1495 | nas->probability = htons(os->probability); | |
1496 | nas->collector_set_id = htonl(os->collector_set_id); | |
1497 | nas->obs_domain_id = htonl(os->obs_domain_id); | |
1498 | nas->obs_point_id = htonl(os->obs_point_id); | |
1499 | } | |
1500 | ||
f25d0cf3 BP |
1501 | static void |
1502 | ofpact_to_nxast(const struct ofpact *a, struct ofpbuf *out) | |
1503 | { | |
1504 | switch (a->type) { | |
1505 | case OFPACT_CONTROLLER: | |
1506 | ofpact_controller_to_nxast(ofpact_get_CONTROLLER(a), out); | |
1507 | break; | |
1508 | ||
1509 | case OFPACT_OUTPUT_REG: | |
1510 | ofpact_output_reg_to_nxast(ofpact_get_OUTPUT_REG(a), out); | |
1511 | break; | |
1512 | ||
1513 | case OFPACT_BUNDLE: | |
1514 | bundle_to_nxast(ofpact_get_BUNDLE(a), out); | |
1515 | break; | |
1516 | ||
1517 | case OFPACT_REG_MOVE: | |
1518 | nxm_reg_move_to_nxast(ofpact_get_REG_MOVE(a), out); | |
1519 | break; | |
1520 | ||
1521 | case OFPACT_REG_LOAD: | |
1522 | nxm_reg_load_to_nxast(ofpact_get_REG_LOAD(a), out); | |
1523 | break; | |
1524 | ||
bd85dac1 AZ |
1525 | case OFPACT_STACK_PUSH: |
1526 | nxm_stack_push_to_nxast(ofpact_get_STACK_PUSH(a), out); | |
1527 | break; | |
1528 | ||
1529 | case OFPACT_STACK_POP: | |
1530 | nxm_stack_pop_to_nxast(ofpact_get_STACK_POP(a), out); | |
1531 | break; | |
1532 | ||
f25d0cf3 | 1533 | case OFPACT_DEC_TTL: |
c2d967a5 | 1534 | ofpact_dec_ttl_to_nxast(ofpact_get_DEC_TTL(a), out); |
f25d0cf3 BP |
1535 | break; |
1536 | ||
0f3f3c3d SH |
1537 | case OFPACT_SET_MPLS_TTL: |
1538 | ofputil_put_NXAST_SET_MPLS_TTL(out)->ttl | |
1539 | = ofpact_get_SET_MPLS_TTL(a)->ttl; | |
1540 | break; | |
1541 | ||
b676167a SH |
1542 | case OFPACT_DEC_MPLS_TTL: |
1543 | ofputil_put_NXAST_DEC_MPLS_TTL(out); | |
1544 | break; | |
1545 | ||
f25d0cf3 BP |
1546 | case OFPACT_SET_TUNNEL: |
1547 | ofpact_set_tunnel_to_nxast(ofpact_get_SET_TUNNEL(a), out); | |
1548 | break; | |
1549 | ||
4cceacb9 JS |
1550 | case OFPACT_WRITE_METADATA: |
1551 | ofpact_write_metadata_to_nxast(ofpact_get_WRITE_METADATA(a), out); | |
1552 | break; | |
1553 | ||
f25d0cf3 BP |
1554 | case OFPACT_SET_QUEUE: |
1555 | ofputil_put_NXAST_SET_QUEUE(out)->queue_id | |
1556 | = htonl(ofpact_get_SET_QUEUE(a)->queue_id); | |
1557 | break; | |
1558 | ||
1559 | case OFPACT_POP_QUEUE: | |
1560 | ofputil_put_NXAST_POP_QUEUE(out); | |
1561 | break; | |
1562 | ||
1563 | case OFPACT_FIN_TIMEOUT: | |
1564 | ofpact_fin_timeout_to_nxast(ofpact_get_FIN_TIMEOUT(a), out); | |
1565 | break; | |
1566 | ||
1567 | case OFPACT_RESUBMIT: | |
1568 | ofpact_resubmit_to_nxast(ofpact_get_RESUBMIT(a), out); | |
1569 | break; | |
1570 | ||
1571 | case OFPACT_LEARN: | |
1572 | learn_to_nxast(ofpact_get_LEARN(a), out); | |
1573 | break; | |
1574 | ||
1575 | case OFPACT_MULTIPATH: | |
1576 | multipath_to_nxast(ofpact_get_MULTIPATH(a), out); | |
1577 | break; | |
1578 | ||
f25d0cf3 BP |
1579 | case OFPACT_NOTE: |
1580 | ofpact_note_to_nxast(ofpact_get_NOTE(a), out); | |
1581 | break; | |
1582 | ||
1583 | case OFPACT_EXIT: | |
1584 | ofputil_put_NXAST_EXIT(out); | |
1585 | break; | |
1586 | ||
b02475c5 SH |
1587 | case OFPACT_PUSH_MPLS: |
1588 | ofputil_put_NXAST_PUSH_MPLS(out)->ethertype = | |
1589 | ofpact_get_PUSH_MPLS(a)->ethertype; | |
1590 | break; | |
1591 | ||
1592 | case OFPACT_POP_MPLS: | |
1593 | ofputil_put_NXAST_POP_MPLS(out)->ethertype = | |
1594 | ofpact_get_POP_MPLS(a)->ethertype; | |
1595 | break; | |
1596 | ||
29089a54 RL |
1597 | case OFPACT_SAMPLE: |
1598 | ofpact_sample_to_nxast(ofpact_get_SAMPLE(a), out); | |
1599 | break; | |
1600 | ||
f25d0cf3 BP |
1601 | case OFPACT_OUTPUT: |
1602 | case OFPACT_ENQUEUE: | |
1603 | case OFPACT_SET_VLAN_VID: | |
1604 | case OFPACT_SET_VLAN_PCP: | |
1605 | case OFPACT_STRIP_VLAN: | |
3e34fbdd | 1606 | case OFPACT_PUSH_VLAN: |
f25d0cf3 BP |
1607 | case OFPACT_SET_ETH_SRC: |
1608 | case OFPACT_SET_ETH_DST: | |
1609 | case OFPACT_SET_IPV4_SRC: | |
1610 | case OFPACT_SET_IPV4_DST: | |
1611 | case OFPACT_SET_IPV4_DSCP: | |
1612 | case OFPACT_SET_L4_SRC_PORT: | |
1613 | case OFPACT_SET_L4_DST_PORT: | |
b19e8793 | 1614 | case OFPACT_CLEAR_ACTIONS: |
8dd54666 | 1615 | case OFPACT_GOTO_TABLE: |
638a19b0 | 1616 | case OFPACT_METER: |
f25d0cf3 BP |
1617 | NOT_REACHED(); |
1618 | } | |
1619 | } | |
1620 | \f | |
1621 | /* Converting ofpacts to OpenFlow 1.0. */ | |
1622 | ||
1623 | static void | |
1624 | ofpact_output_to_openflow10(const struct ofpact_output *output, | |
1625 | struct ofpbuf *out) | |
1626 | { | |
d01c980f | 1627 | struct ofp10_action_output *oao; |
f25d0cf3 BP |
1628 | |
1629 | oao = ofputil_put_OFPAT10_OUTPUT(out); | |
4e022ec0 | 1630 | oao->port = htons(ofp_to_u16(output->port)); |
f25d0cf3 BP |
1631 | oao->max_len = htons(output->max_len); |
1632 | } | |
1633 | ||
1634 | static void | |
1635 | ofpact_enqueue_to_openflow10(const struct ofpact_enqueue *enqueue, | |
1636 | struct ofpbuf *out) | |
1637 | { | |
31a9e63f | 1638 | struct ofp10_action_enqueue *oae; |
f25d0cf3 BP |
1639 | |
1640 | oae = ofputil_put_OFPAT10_ENQUEUE(out); | |
4e022ec0 | 1641 | oae->port = htons(ofp_to_u16(enqueue->port)); |
f25d0cf3 BP |
1642 | oae->queue_id = htonl(enqueue->queue); |
1643 | } | |
1644 | ||
1645 | static void | |
1646 | ofpact_to_openflow10(const struct ofpact *a, struct ofpbuf *out) | |
1647 | { | |
1648 | switch (a->type) { | |
1649 | case OFPACT_OUTPUT: | |
1650 | ofpact_output_to_openflow10(ofpact_get_OUTPUT(a), out); | |
1651 | break; | |
1652 | ||
1653 | case OFPACT_ENQUEUE: | |
1654 | ofpact_enqueue_to_openflow10(ofpact_get_ENQUEUE(a), out); | |
1655 | break; | |
1656 | ||
1657 | case OFPACT_SET_VLAN_VID: | |
1658 | ofputil_put_OFPAT10_SET_VLAN_VID(out)->vlan_vid | |
1659 | = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid); | |
1660 | break; | |
1661 | ||
1662 | case OFPACT_SET_VLAN_PCP: | |
1663 | ofputil_put_OFPAT10_SET_VLAN_PCP(out)->vlan_pcp | |
1664 | = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp; | |
1665 | break; | |
1666 | ||
1667 | case OFPACT_STRIP_VLAN: | |
1668 | ofputil_put_OFPAT10_STRIP_VLAN(out); | |
1669 | break; | |
1670 | ||
1671 | case OFPACT_SET_ETH_SRC: | |
1672 | memcpy(ofputil_put_OFPAT10_SET_DL_SRC(out)->dl_addr, | |
1673 | ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN); | |
1674 | break; | |
1675 | ||
1676 | case OFPACT_SET_ETH_DST: | |
1677 | memcpy(ofputil_put_OFPAT10_SET_DL_DST(out)->dl_addr, | |
1678 | ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN); | |
1679 | break; | |
1680 | ||
1681 | case OFPACT_SET_IPV4_SRC: | |
1682 | ofputil_put_OFPAT10_SET_NW_SRC(out)->nw_addr | |
1683 | = ofpact_get_SET_IPV4_SRC(a)->ipv4; | |
1684 | break; | |
1685 | ||
1686 | case OFPACT_SET_IPV4_DST: | |
1687 | ofputil_put_OFPAT10_SET_NW_DST(out)->nw_addr | |
1688 | = ofpact_get_SET_IPV4_DST(a)->ipv4; | |
1689 | break; | |
1690 | ||
1691 | case OFPACT_SET_IPV4_DSCP: | |
1692 | ofputil_put_OFPAT10_SET_NW_TOS(out)->nw_tos | |
1693 | = ofpact_get_SET_IPV4_DSCP(a)->dscp; | |
1694 | break; | |
1695 | ||
1696 | case OFPACT_SET_L4_SRC_PORT: | |
1697 | ofputil_put_OFPAT10_SET_TP_SRC(out)->tp_port | |
1698 | = htons(ofpact_get_SET_L4_SRC_PORT(a)->port); | |
1699 | break; | |
1700 | ||
1701 | case OFPACT_SET_L4_DST_PORT: | |
1702 | ofputil_put_OFPAT10_SET_TP_DST(out)->tp_port | |
1703 | = htons(ofpact_get_SET_L4_DST_PORT(a)->port); | |
1704 | break; | |
1705 | ||
3e34fbdd | 1706 | case OFPACT_PUSH_VLAN: |
b19e8793 | 1707 | case OFPACT_CLEAR_ACTIONS: |
8dd54666 | 1708 | case OFPACT_GOTO_TABLE: |
638a19b0 | 1709 | case OFPACT_METER: |
5dca28b5 | 1710 | /* XXX */ |
8dd54666 IY |
1711 | break; |
1712 | ||
f25d0cf3 BP |
1713 | case OFPACT_CONTROLLER: |
1714 | case OFPACT_OUTPUT_REG: | |
1715 | case OFPACT_BUNDLE: | |
1716 | case OFPACT_REG_MOVE: | |
1717 | case OFPACT_REG_LOAD: | |
bd85dac1 AZ |
1718 | case OFPACT_STACK_PUSH: |
1719 | case OFPACT_STACK_POP: | |
f25d0cf3 | 1720 | case OFPACT_DEC_TTL: |
0f3f3c3d | 1721 | case OFPACT_SET_MPLS_TTL: |
b676167a | 1722 | case OFPACT_DEC_MPLS_TTL: |
f25d0cf3 | 1723 | case OFPACT_SET_TUNNEL: |
4cceacb9 | 1724 | case OFPACT_WRITE_METADATA: |
f25d0cf3 BP |
1725 | case OFPACT_SET_QUEUE: |
1726 | case OFPACT_POP_QUEUE: | |
1727 | case OFPACT_FIN_TIMEOUT: | |
1728 | case OFPACT_RESUBMIT: | |
1729 | case OFPACT_LEARN: | |
1730 | case OFPACT_MULTIPATH: | |
f25d0cf3 BP |
1731 | case OFPACT_NOTE: |
1732 | case OFPACT_EXIT: | |
b02475c5 SH |
1733 | case OFPACT_PUSH_MPLS: |
1734 | case OFPACT_POP_MPLS: | |
29089a54 | 1735 | case OFPACT_SAMPLE: |
f25d0cf3 BP |
1736 | ofpact_to_nxast(a, out); |
1737 | break; | |
1738 | } | |
1739 | } | |
1740 | ||
d01c980f | 1741 | /* Converts the 'ofpacts_len' bytes of ofpacts in 'ofpacts' into OpenFlow 1.0 |
f25d0cf3 BP |
1742 | * actions in 'openflow', appending the actions to any existing data in |
1743 | * 'openflow'. */ | |
1744 | void | |
d01c980f BP |
1745 | ofpacts_put_openflow10(const struct ofpact ofpacts[], size_t ofpacts_len, |
1746 | struct ofpbuf *openflow) | |
f25d0cf3 BP |
1747 | { |
1748 | const struct ofpact *a; | |
1749 | ||
1750 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
1751 | ofpact_to_openflow10(a, openflow); | |
1752 | } | |
1753 | } | |
1754 | \f | |
d01c980f BP |
1755 | /* Converting ofpacts to OpenFlow 1.1. */ |
1756 | ||
1757 | static void | |
1758 | ofpact_output_to_openflow11(const struct ofpact_output *output, | |
1759 | struct ofpbuf *out) | |
1760 | { | |
1761 | struct ofp11_action_output *oao; | |
1762 | ||
1763 | oao = ofputil_put_OFPAT11_OUTPUT(out); | |
1764 | oao->port = ofputil_port_to_ofp11(output->port); | |
1765 | oao->max_len = htons(output->max_len); | |
1766 | } | |
1767 | ||
99086062 BP |
1768 | static void |
1769 | ofpact_dec_ttl_to_openflow11(const struct ofpact_cnt_ids *dec_ttl, | |
1770 | struct ofpbuf *out) | |
1771 | { | |
1772 | if (dec_ttl->n_controllers == 1 && dec_ttl->cnt_ids[0] == 0 | |
1773 | && (!dec_ttl->ofpact.compat || | |
1774 | dec_ttl->ofpact.compat == OFPUTIL_OFPAT11_DEC_NW_TTL)) { | |
1775 | ofputil_put_OFPAT11_DEC_NW_TTL(out); | |
1776 | } else { | |
1777 | ofpact_dec_ttl_to_nxast(dec_ttl, out); | |
1778 | } | |
1779 | } | |
1780 | ||
d01c980f BP |
1781 | static void |
1782 | ofpact_to_openflow11(const struct ofpact *a, struct ofpbuf *out) | |
1783 | { | |
1784 | switch (a->type) { | |
1785 | case OFPACT_OUTPUT: | |
1786 | return ofpact_output_to_openflow11(ofpact_get_OUTPUT(a), out); | |
1787 | ||
1788 | case OFPACT_ENQUEUE: | |
1789 | /* XXX */ | |
1790 | break; | |
1791 | ||
1792 | case OFPACT_SET_VLAN_VID: | |
1793 | ofputil_put_OFPAT11_SET_VLAN_VID(out)->vlan_vid | |
1794 | = htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid); | |
1795 | break; | |
1796 | ||
1797 | case OFPACT_SET_VLAN_PCP: | |
1798 | ofputil_put_OFPAT11_SET_VLAN_PCP(out)->vlan_pcp | |
1799 | = ofpact_get_SET_VLAN_PCP(a)->vlan_pcp; | |
1800 | break; | |
1801 | ||
1802 | case OFPACT_STRIP_VLAN: | |
8e61c110 | 1803 | ofputil_put_OFPAT11_POP_VLAN(out); |
d01c980f BP |
1804 | break; |
1805 | ||
3e34fbdd | 1806 | case OFPACT_PUSH_VLAN: |
5dca28b5 | 1807 | /* XXX ETH_TYPE_VLAN_8021AD case */ |
3e34fbdd IY |
1808 | ofputil_put_OFPAT11_PUSH_VLAN(out)->ethertype = |
1809 | htons(ETH_TYPE_VLAN_8021Q); | |
1810 | break; | |
1811 | ||
276c4e7a SH |
1812 | case OFPACT_SET_QUEUE: |
1813 | ofputil_put_OFPAT11_SET_QUEUE(out)->queue_id | |
1814 | = htonl(ofpact_get_SET_QUEUE(a)->queue_id); | |
1815 | break; | |
1816 | ||
d01c980f BP |
1817 | case OFPACT_SET_ETH_SRC: |
1818 | memcpy(ofputil_put_OFPAT11_SET_DL_SRC(out)->dl_addr, | |
1819 | ofpact_get_SET_ETH_SRC(a)->mac, ETH_ADDR_LEN); | |
1820 | break; | |
1821 | ||
1822 | case OFPACT_SET_ETH_DST: | |
1823 | memcpy(ofputil_put_OFPAT11_SET_DL_DST(out)->dl_addr, | |
1824 | ofpact_get_SET_ETH_DST(a)->mac, ETH_ADDR_LEN); | |
1825 | break; | |
1826 | ||
1827 | case OFPACT_SET_IPV4_SRC: | |
1828 | ofputil_put_OFPAT11_SET_NW_SRC(out)->nw_addr | |
1829 | = ofpact_get_SET_IPV4_SRC(a)->ipv4; | |
1830 | break; | |
1831 | ||
1832 | case OFPACT_SET_IPV4_DST: | |
1833 | ofputil_put_OFPAT11_SET_NW_DST(out)->nw_addr | |
1834 | = ofpact_get_SET_IPV4_DST(a)->ipv4; | |
1835 | break; | |
1836 | ||
1837 | case OFPACT_SET_IPV4_DSCP: | |
1838 | ofputil_put_OFPAT11_SET_NW_TOS(out)->nw_tos | |
1839 | = ofpact_get_SET_IPV4_DSCP(a)->dscp; | |
1840 | break; | |
1841 | ||
1842 | case OFPACT_SET_L4_SRC_PORT: | |
1843 | ofputil_put_OFPAT11_SET_TP_SRC(out)->tp_port | |
1844 | = htons(ofpact_get_SET_L4_SRC_PORT(a)->port); | |
1845 | break; | |
1846 | ||
1847 | case OFPACT_SET_L4_DST_PORT: | |
1848 | ofputil_put_OFPAT11_SET_TP_DST(out)->tp_port | |
1849 | = htons(ofpact_get_SET_L4_DST_PORT(a)->port); | |
1850 | break; | |
1851 | ||
7bcb1506 | 1852 | case OFPACT_DEC_TTL: |
99086062 | 1853 | ofpact_dec_ttl_to_openflow11(ofpact_get_DEC_TTL(a), out); |
7bcb1506 IY |
1854 | break; |
1855 | ||
0f3f3c3d SH |
1856 | case OFPACT_SET_MPLS_TTL: |
1857 | ofputil_put_OFPAT11_SET_MPLS_TTL(out)->mpls_ttl | |
1858 | = ofpact_get_SET_MPLS_TTL(a)->ttl; | |
1859 | break; | |
1860 | ||
b676167a SH |
1861 | case OFPACT_DEC_MPLS_TTL: |
1862 | ofputil_put_OFPAT11_DEC_MPLS_TTL(out); | |
1863 | break; | |
1864 | ||
4cceacb9 JS |
1865 | case OFPACT_WRITE_METADATA: |
1866 | /* OpenFlow 1.1 uses OFPIT_WRITE_METADATA to express this action. */ | |
1867 | break; | |
1868 | ||
b02475c5 SH |
1869 | case OFPACT_PUSH_MPLS: |
1870 | ofputil_put_OFPAT11_PUSH_MPLS(out)->ethertype = | |
1871 | ofpact_get_PUSH_MPLS(a)->ethertype; | |
1872 | break; | |
1873 | ||
1874 | case OFPACT_POP_MPLS: | |
1875 | ofputil_put_OFPAT11_POP_MPLS(out)->ethertype = | |
1876 | ofpact_get_POP_MPLS(a)->ethertype; | |
1877 | ||
1878 | break; | |
1879 | ||
b19e8793 | 1880 | case OFPACT_CLEAR_ACTIONS: |
8dd54666 | 1881 | case OFPACT_GOTO_TABLE: |
638a19b0 | 1882 | case OFPACT_METER: |
8dd54666 IY |
1883 | NOT_REACHED(); |
1884 | ||
d01c980f BP |
1885 | case OFPACT_CONTROLLER: |
1886 | case OFPACT_OUTPUT_REG: | |
1887 | case OFPACT_BUNDLE: | |
1888 | case OFPACT_REG_MOVE: | |
1889 | case OFPACT_REG_LOAD: | |
bd85dac1 AZ |
1890 | case OFPACT_STACK_PUSH: |
1891 | case OFPACT_STACK_POP: | |
d01c980f | 1892 | case OFPACT_SET_TUNNEL: |
d01c980f BP |
1893 | case OFPACT_POP_QUEUE: |
1894 | case OFPACT_FIN_TIMEOUT: | |
1895 | case OFPACT_RESUBMIT: | |
1896 | case OFPACT_LEARN: | |
1897 | case OFPACT_MULTIPATH: | |
d01c980f BP |
1898 | case OFPACT_NOTE: |
1899 | case OFPACT_EXIT: | |
29089a54 | 1900 | case OFPACT_SAMPLE: |
d01c980f BP |
1901 | ofpact_to_nxast(a, out); |
1902 | break; | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | /* Converts the ofpacts in 'ofpacts' (terminated by OFPACT_END) into OpenFlow | |
1907 | * 1.1 actions in 'openflow', appending the actions to any existing data in | |
1908 | * 'openflow'. */ | |
a07c15bc | 1909 | size_t |
d01c980f BP |
1910 | ofpacts_put_openflow11_actions(const struct ofpact ofpacts[], |
1911 | size_t ofpacts_len, struct ofpbuf *openflow) | |
1912 | { | |
1913 | const struct ofpact *a; | |
a07c15bc | 1914 | size_t start_size = openflow->size; |
d01c980f BP |
1915 | |
1916 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
1917 | ofpact_to_openflow11(a, openflow); | |
1918 | } | |
a07c15bc SH |
1919 | |
1920 | return openflow->size - start_size; | |
d01c980f BP |
1921 | } |
1922 | ||
8dd54666 IY |
1923 | static void |
1924 | ofpacts_update_instruction_actions(struct ofpbuf *openflow, size_t ofs) | |
d01c980f BP |
1925 | { |
1926 | struct ofp11_instruction_actions *oia; | |
d01c980f BP |
1927 | |
1928 | /* Update the instruction's length (or, if it's empty, delete it). */ | |
1929 | oia = ofpbuf_at_assert(openflow, ofs, sizeof *oia); | |
1930 | if (openflow->size > ofs + sizeof *oia) { | |
1931 | oia->len = htons(openflow->size - ofs); | |
1932 | } else { | |
1933 | openflow->size = ofs; | |
1934 | } | |
1935 | } | |
8dd54666 IY |
1936 | |
1937 | void | |
1938 | ofpacts_put_openflow11_instructions(const struct ofpact ofpacts[], | |
1939 | size_t ofpacts_len, | |
1940 | struct ofpbuf *openflow) | |
1941 | { | |
1942 | const struct ofpact *a; | |
1943 | ||
1944 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
084c53de BP |
1945 | switch (ovs_instruction_type_from_ofpact_type(a->type)) { |
1946 | case OVSINST_OFPIT11_CLEAR_ACTIONS: | |
f606c7e9 | 1947 | instruction_put_OFPIT11_CLEAR_ACTIONS(openflow); |
084c53de | 1948 | break; |
8dd54666 | 1949 | |
084c53de BP |
1950 | case OVSINST_OFPIT11_GOTO_TABLE: { |
1951 | struct ofp11_instruction_goto_table *oigt; | |
8dd54666 IY |
1952 | oigt = instruction_put_OFPIT11_GOTO_TABLE(openflow); |
1953 | oigt->table_id = ofpact_get_GOTO_TABLE(a)->table_id; | |
1954 | memset(oigt->pad, 0, sizeof oigt->pad); | |
084c53de BP |
1955 | break; |
1956 | } | |
1957 | ||
1958 | case OVSINST_OFPIT11_WRITE_METADATA: { | |
4cceacb9 JS |
1959 | const struct ofpact_metadata *om; |
1960 | struct ofp11_instruction_write_metadata *oiwm; | |
1961 | ||
1962 | om = ofpact_get_WRITE_METADATA(a); | |
1963 | oiwm = instruction_put_OFPIT11_WRITE_METADATA(openflow); | |
1964 | oiwm->metadata = om->metadata; | |
1965 | oiwm->metadata_mask = om->mask; | |
084c53de BP |
1966 | break; |
1967 | } | |
1968 | ||
1969 | case OVSINST_OFPIT13_METER: { | |
638a19b0 JR |
1970 | const struct ofpact_meter *om; |
1971 | struct ofp13_instruction_meter *oim; | |
1972 | ||
1973 | om = ofpact_get_METER(a); | |
1974 | oim = instruction_put_OFPIT13_METER(openflow); | |
1975 | oim->meter_id = htonl(om->meter_id); | |
084c53de BP |
1976 | break; |
1977 | } | |
1978 | ||
1979 | case OVSINST_OFPIT11_APPLY_ACTIONS: { | |
8dd54666 IY |
1980 | const size_t ofs = openflow->size; |
1981 | const size_t ofpacts_len_left = | |
1982 | (uint8_t*)ofpact_end(ofpacts, ofpacts_len) - (uint8_t*)a; | |
1983 | const struct ofpact *action; | |
1984 | const struct ofpact *processed = a; | |
1985 | ||
1986 | instruction_put_OFPIT11_APPLY_ACTIONS(openflow); | |
1987 | OFPACT_FOR_EACH(action, a, ofpacts_len_left) { | |
084c53de BP |
1988 | if (ovs_instruction_type_from_ofpact_type(action->type) |
1989 | != OVSINST_OFPIT11_APPLY_ACTIONS) { | |
8dd54666 IY |
1990 | break; |
1991 | } | |
1992 | ofpact_to_openflow11(action, openflow); | |
1993 | processed = action; | |
1994 | } | |
1995 | ofpacts_update_instruction_actions(openflow, ofs); | |
1996 | a = processed; | |
084c53de BP |
1997 | break; |
1998 | } | |
1999 | ||
2000 | case OVSINST_OFPIT11_WRITE_ACTIONS: | |
2001 | NOT_REACHED(); | |
8dd54666 IY |
2002 | } |
2003 | } | |
2004 | } | |
d01c980f | 2005 | \f |
f25d0cf3 BP |
2006 | /* Returns true if 'action' outputs to 'port', false otherwise. */ |
2007 | static bool | |
4e022ec0 | 2008 | ofpact_outputs_to_port(const struct ofpact *ofpact, ofp_port_t port) |
f25d0cf3 BP |
2009 | { |
2010 | switch (ofpact->type) { | |
2011 | case OFPACT_OUTPUT: | |
2012 | return ofpact_get_OUTPUT(ofpact)->port == port; | |
2013 | case OFPACT_ENQUEUE: | |
2014 | return ofpact_get_ENQUEUE(ofpact)->port == port; | |
2015 | case OFPACT_CONTROLLER: | |
2016 | return port == OFPP_CONTROLLER; | |
2017 | ||
2018 | case OFPACT_OUTPUT_REG: | |
2019 | case OFPACT_BUNDLE: | |
2020 | case OFPACT_SET_VLAN_VID: | |
2021 | case OFPACT_SET_VLAN_PCP: | |
2022 | case OFPACT_STRIP_VLAN: | |
3e34fbdd | 2023 | case OFPACT_PUSH_VLAN: |
f25d0cf3 BP |
2024 | case OFPACT_SET_ETH_SRC: |
2025 | case OFPACT_SET_ETH_DST: | |
2026 | case OFPACT_SET_IPV4_SRC: | |
2027 | case OFPACT_SET_IPV4_DST: | |
2028 | case OFPACT_SET_IPV4_DSCP: | |
2029 | case OFPACT_SET_L4_SRC_PORT: | |
2030 | case OFPACT_SET_L4_DST_PORT: | |
2031 | case OFPACT_REG_MOVE: | |
2032 | case OFPACT_REG_LOAD: | |
bd85dac1 AZ |
2033 | case OFPACT_STACK_PUSH: |
2034 | case OFPACT_STACK_POP: | |
f25d0cf3 | 2035 | case OFPACT_DEC_TTL: |
0f3f3c3d | 2036 | case OFPACT_SET_MPLS_TTL: |
b676167a | 2037 | case OFPACT_DEC_MPLS_TTL: |
f25d0cf3 | 2038 | case OFPACT_SET_TUNNEL: |
4cceacb9 | 2039 | case OFPACT_WRITE_METADATA: |
f25d0cf3 BP |
2040 | case OFPACT_SET_QUEUE: |
2041 | case OFPACT_POP_QUEUE: | |
2042 | case OFPACT_FIN_TIMEOUT: | |
2043 | case OFPACT_RESUBMIT: | |
2044 | case OFPACT_LEARN: | |
2045 | case OFPACT_MULTIPATH: | |
f25d0cf3 BP |
2046 | case OFPACT_NOTE: |
2047 | case OFPACT_EXIT: | |
b02475c5 SH |
2048 | case OFPACT_PUSH_MPLS: |
2049 | case OFPACT_POP_MPLS: | |
29089a54 | 2050 | case OFPACT_SAMPLE: |
b19e8793 | 2051 | case OFPACT_CLEAR_ACTIONS: |
8dd54666 | 2052 | case OFPACT_GOTO_TABLE: |
638a19b0 | 2053 | case OFPACT_METER: |
f25d0cf3 BP |
2054 | default: |
2055 | return false; | |
2056 | } | |
2057 | } | |
2058 | ||
2059 | /* Returns true if any action in the 'ofpacts_len' bytes of 'ofpacts' outputs | |
2060 | * to 'port', false otherwise. */ | |
2061 | bool | |
2062 | ofpacts_output_to_port(const struct ofpact *ofpacts, size_t ofpacts_len, | |
4e022ec0 | 2063 | ofp_port_t port) |
f25d0cf3 BP |
2064 | { |
2065 | const struct ofpact *a; | |
2066 | ||
2067 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
2068 | if (ofpact_outputs_to_port(a, port)) { | |
2069 | return true; | |
2070 | } | |
2071 | } | |
2072 | ||
2073 | return false; | |
2074 | } | |
2075 | ||
2076 | bool | |
2077 | ofpacts_equal(const struct ofpact *a, size_t a_len, | |
2078 | const struct ofpact *b, size_t b_len) | |
2079 | { | |
2080 | return a_len == b_len && !memcmp(a, b, a_len); | |
2081 | } | |
2082 | \f | |
2083 | /* Formatting ofpacts. */ | |
2084 | ||
2085 | static void | |
2086 | print_note(const struct ofpact_note *note, struct ds *string) | |
2087 | { | |
2088 | size_t i; | |
2089 | ||
2090 | ds_put_cstr(string, "note:"); | |
2091 | for (i = 0; i < note->length; i++) { | |
2092 | if (i) { | |
2093 | ds_put_char(string, '.'); | |
2094 | } | |
2095 | ds_put_format(string, "%02"PRIx8, note->data[i]); | |
2096 | } | |
2097 | } | |
2098 | ||
c2d967a5 MM |
2099 | static void |
2100 | print_dec_ttl(const struct ofpact_cnt_ids *ids, | |
2101 | struct ds *s) | |
2102 | { | |
2103 | size_t i; | |
2104 | ||
2105 | ds_put_cstr(s, "dec_ttl"); | |
2106 | if (ids->ofpact.compat == OFPUTIL_NXAST_DEC_TTL_CNT_IDS) { | |
2107 | ds_put_cstr(s, "("); | |
2108 | for (i = 0; i < ids->n_controllers; i++) { | |
2109 | if (i) { | |
2110 | ds_put_cstr(s, ","); | |
2111 | } | |
2112 | ds_put_format(s, "%"PRIu16, ids->cnt_ids[i]); | |
2113 | } | |
2114 | ds_put_cstr(s, ")"); | |
2115 | } | |
2116 | } | |
2117 | ||
f25d0cf3 BP |
2118 | static void |
2119 | print_fin_timeout(const struct ofpact_fin_timeout *fin_timeout, | |
2120 | struct ds *s) | |
2121 | { | |
2122 | ds_put_cstr(s, "fin_timeout("); | |
2123 | if (fin_timeout->fin_idle_timeout) { | |
2124 | ds_put_format(s, "idle_timeout=%"PRIu16",", | |
2125 | fin_timeout->fin_idle_timeout); | |
2126 | } | |
2127 | if (fin_timeout->fin_hard_timeout) { | |
2128 | ds_put_format(s, "hard_timeout=%"PRIu16",", | |
2129 | fin_timeout->fin_hard_timeout); | |
2130 | } | |
2131 | ds_chomp(s, ','); | |
2132 | ds_put_char(s, ')'); | |
2133 | } | |
2134 | ||
2135 | static void | |
2136 | ofpact_format(const struct ofpact *a, struct ds *s) | |
2137 | { | |
2138 | const struct ofpact_enqueue *enqueue; | |
2139 | const struct ofpact_resubmit *resubmit; | |
f25d0cf3 | 2140 | const struct ofpact_controller *controller; |
4cceacb9 | 2141 | const struct ofpact_metadata *metadata; |
f25d0cf3 | 2142 | const struct ofpact_tunnel *tunnel; |
29089a54 | 2143 | const struct ofpact_sample *sample; |
4e022ec0 | 2144 | ofp_port_t port; |
f25d0cf3 BP |
2145 | |
2146 | switch (a->type) { | |
2147 | case OFPACT_OUTPUT: | |
2148 | port = ofpact_get_OUTPUT(a)->port; | |
4e022ec0 | 2149 | if (ofp_to_u16(port) < ofp_to_u16(OFPP_MAX)) { |
f25d0cf3 BP |
2150 | ds_put_format(s, "output:%"PRIu16, port); |
2151 | } else { | |
2152 | ofputil_format_port(port, s); | |
2153 | if (port == OFPP_CONTROLLER) { | |
2154 | ds_put_format(s, ":%"PRIu16, ofpact_get_OUTPUT(a)->max_len); | |
2155 | } | |
2156 | } | |
2157 | break; | |
2158 | ||
2159 | case OFPACT_CONTROLLER: | |
2160 | controller = ofpact_get_CONTROLLER(a); | |
2161 | if (controller->reason == OFPR_ACTION && | |
2162 | controller->controller_id == 0) { | |
2163 | ds_put_format(s, "CONTROLLER:%"PRIu16, | |
2164 | ofpact_get_CONTROLLER(a)->max_len); | |
2165 | } else { | |
2166 | enum ofp_packet_in_reason reason = controller->reason; | |
2167 | ||
2168 | ds_put_cstr(s, "controller("); | |
2169 | if (reason != OFPR_ACTION) { | |
5014a89d BP |
2170 | char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE]; |
2171 | ||
f25d0cf3 | 2172 | ds_put_format(s, "reason=%s,", |
5014a89d BP |
2173 | ofputil_packet_in_reason_to_string( |
2174 | reason, reasonbuf, sizeof reasonbuf)); | |
f25d0cf3 BP |
2175 | } |
2176 | if (controller->max_len != UINT16_MAX) { | |
2177 | ds_put_format(s, "max_len=%"PRIu16",", controller->max_len); | |
2178 | } | |
2179 | if (controller->controller_id != 0) { | |
2180 | ds_put_format(s, "id=%"PRIu16",", controller->controller_id); | |
2181 | } | |
2182 | ds_chomp(s, ','); | |
2183 | ds_put_char(s, ')'); | |
2184 | } | |
2185 | break; | |
2186 | ||
2187 | case OFPACT_ENQUEUE: | |
2188 | enqueue = ofpact_get_ENQUEUE(a); | |
2189 | ds_put_format(s, "enqueue:"); | |
2190 | ofputil_format_port(enqueue->port, s); | |
2191 | ds_put_format(s, "q%"PRIu32, enqueue->queue); | |
2192 | break; | |
2193 | ||
2194 | case OFPACT_OUTPUT_REG: | |
2195 | ds_put_cstr(s, "output:"); | |
2196 | mf_format_subfield(&ofpact_get_OUTPUT_REG(a)->src, s); | |
2197 | break; | |
2198 | ||
2199 | case OFPACT_BUNDLE: | |
2200 | bundle_format(ofpact_get_BUNDLE(a), s); | |
2201 | break; | |
2202 | ||
2203 | case OFPACT_SET_VLAN_VID: | |
2204 | ds_put_format(s, "mod_vlan_vid:%"PRIu16, | |
2205 | ofpact_get_SET_VLAN_VID(a)->vlan_vid); | |
2206 | break; | |
2207 | ||
2208 | case OFPACT_SET_VLAN_PCP: | |
2209 | ds_put_format(s, "mod_vlan_pcp:%"PRIu8, | |
2210 | ofpact_get_SET_VLAN_PCP(a)->vlan_pcp); | |
2211 | break; | |
2212 | ||
2213 | case OFPACT_STRIP_VLAN: | |
2214 | ds_put_cstr(s, "strip_vlan"); | |
2215 | break; | |
2216 | ||
3e34fbdd | 2217 | case OFPACT_PUSH_VLAN: |
5dca28b5 | 2218 | /* XXX 802.1AD case*/ |
3e34fbdd IY |
2219 | ds_put_format(s, "push_vlan:%#"PRIx16, ETH_TYPE_VLAN_8021Q); |
2220 | break; | |
2221 | ||
f25d0cf3 BP |
2222 | case OFPACT_SET_ETH_SRC: |
2223 | ds_put_format(s, "mod_dl_src:"ETH_ADDR_FMT, | |
2224 | ETH_ADDR_ARGS(ofpact_get_SET_ETH_SRC(a)->mac)); | |
2225 | break; | |
2226 | ||
2227 | case OFPACT_SET_ETH_DST: | |
2228 | ds_put_format(s, "mod_dl_dst:"ETH_ADDR_FMT, | |
2229 | ETH_ADDR_ARGS(ofpact_get_SET_ETH_DST(a)->mac)); | |
2230 | break; | |
2231 | ||
2232 | case OFPACT_SET_IPV4_SRC: | |
2233 | ds_put_format(s, "mod_nw_src:"IP_FMT, | |
ed36537e | 2234 | IP_ARGS(ofpact_get_SET_IPV4_SRC(a)->ipv4)); |
f25d0cf3 BP |
2235 | break; |
2236 | ||
2237 | case OFPACT_SET_IPV4_DST: | |
2238 | ds_put_format(s, "mod_nw_dst:"IP_FMT, | |
ed36537e | 2239 | IP_ARGS(ofpact_get_SET_IPV4_DST(a)->ipv4)); |
f25d0cf3 BP |
2240 | break; |
2241 | ||
2242 | case OFPACT_SET_IPV4_DSCP: | |
2243 | ds_put_format(s, "mod_nw_tos:%d", ofpact_get_SET_IPV4_DSCP(a)->dscp); | |
2244 | break; | |
2245 | ||
2246 | case OFPACT_SET_L4_SRC_PORT: | |
2247 | ds_put_format(s, "mod_tp_src:%d", ofpact_get_SET_L4_SRC_PORT(a)->port); | |
2248 | break; | |
2249 | ||
2250 | case OFPACT_SET_L4_DST_PORT: | |
2251 | ds_put_format(s, "mod_tp_dst:%d", ofpact_get_SET_L4_DST_PORT(a)->port); | |
2252 | break; | |
2253 | ||
2254 | case OFPACT_REG_MOVE: | |
2255 | nxm_format_reg_move(ofpact_get_REG_MOVE(a), s); | |
2256 | break; | |
2257 | ||
2258 | case OFPACT_REG_LOAD: | |
2259 | nxm_format_reg_load(ofpact_get_REG_LOAD(a), s); | |
2260 | break; | |
2261 | ||
bd85dac1 AZ |
2262 | case OFPACT_STACK_PUSH: |
2263 | nxm_format_stack_push(ofpact_get_STACK_PUSH(a), s); | |
2264 | break; | |
2265 | ||
2266 | case OFPACT_STACK_POP: | |
2267 | nxm_format_stack_pop(ofpact_get_STACK_POP(a), s); | |
2268 | break; | |
2269 | ||
f25d0cf3 | 2270 | case OFPACT_DEC_TTL: |
c2d967a5 | 2271 | print_dec_ttl(ofpact_get_DEC_TTL(a), s); |
f25d0cf3 BP |
2272 | break; |
2273 | ||
0f3f3c3d SH |
2274 | case OFPACT_SET_MPLS_TTL: |
2275 | ds_put_format(s, "set_mpls_ttl(%"PRIu8")", | |
2276 | ofpact_get_SET_MPLS_TTL(a)->ttl); | |
2277 | break; | |
2278 | ||
b676167a SH |
2279 | case OFPACT_DEC_MPLS_TTL: |
2280 | ds_put_cstr(s, "dec_mpls_ttl"); | |
2281 | break; | |
2282 | ||
f25d0cf3 BP |
2283 | case OFPACT_SET_TUNNEL: |
2284 | tunnel = ofpact_get_SET_TUNNEL(a); | |
2285 | ds_put_format(s, "set_tunnel%s:%#"PRIx64, | |
2286 | (tunnel->tun_id > UINT32_MAX | |
2287 | || a->compat == OFPUTIL_NXAST_SET_TUNNEL64 ? "64" : ""), | |
2288 | tunnel->tun_id); | |
2289 | break; | |
2290 | ||
2291 | case OFPACT_SET_QUEUE: | |
2292 | ds_put_format(s, "set_queue:%"PRIu32, | |
2293 | ofpact_get_SET_QUEUE(a)->queue_id); | |
2294 | break; | |
2295 | ||
2296 | case OFPACT_POP_QUEUE: | |
2297 | ds_put_cstr(s, "pop_queue"); | |
2298 | break; | |
2299 | ||
2300 | case OFPACT_FIN_TIMEOUT: | |
2301 | print_fin_timeout(ofpact_get_FIN_TIMEOUT(a), s); | |
2302 | break; | |
2303 | ||
2304 | case OFPACT_RESUBMIT: | |
2305 | resubmit = ofpact_get_RESUBMIT(a); | |
2306 | if (resubmit->in_port != OFPP_IN_PORT && resubmit->table_id == 255) { | |
c6100d92 BP |
2307 | ds_put_cstr(s, "resubmit:"); |
2308 | ofputil_format_port(resubmit->in_port, s); | |
f25d0cf3 BP |
2309 | } else { |
2310 | ds_put_format(s, "resubmit("); | |
2311 | if (resubmit->in_port != OFPP_IN_PORT) { | |
2312 | ofputil_format_port(resubmit->in_port, s); | |
2313 | } | |
2314 | ds_put_char(s, ','); | |
2315 | if (resubmit->table_id != 255) { | |
2316 | ds_put_format(s, "%"PRIu8, resubmit->table_id); | |
2317 | } | |
2318 | ds_put_char(s, ')'); | |
2319 | } | |
2320 | break; | |
2321 | ||
2322 | case OFPACT_LEARN: | |
2323 | learn_format(ofpact_get_LEARN(a), s); | |
2324 | break; | |
2325 | ||
2326 | case OFPACT_MULTIPATH: | |
2327 | multipath_format(ofpact_get_MULTIPATH(a), s); | |
2328 | break; | |
2329 | ||
f25d0cf3 BP |
2330 | case OFPACT_NOTE: |
2331 | print_note(ofpact_get_NOTE(a), s); | |
2332 | break; | |
2333 | ||
b02475c5 SH |
2334 | case OFPACT_PUSH_MPLS: |
2335 | ds_put_format(s, "push_mpls:0x%04"PRIx16, | |
2336 | ntohs(ofpact_get_PUSH_MPLS(a)->ethertype)); | |
2337 | break; | |
2338 | ||
2339 | case OFPACT_POP_MPLS: | |
2340 | ds_put_format(s, "pop_mpls:0x%04"PRIx16, | |
2341 | ntohs(ofpact_get_POP_MPLS(a)->ethertype)); | |
2342 | break; | |
2343 | ||
f25d0cf3 BP |
2344 | case OFPACT_EXIT: |
2345 | ds_put_cstr(s, "exit"); | |
2346 | break; | |
8dd54666 | 2347 | |
29089a54 RL |
2348 | case OFPACT_SAMPLE: |
2349 | sample = ofpact_get_SAMPLE(a); | |
2350 | ds_put_format( | |
2351 | s, "sample(probability=%"PRIu16",collector_set_id=%"PRIu32 | |
2352 | ",obs_domain_id=%"PRIu32",obs_point_id=%"PRIu32")", | |
2353 | sample->probability, sample->collector_set_id, | |
2354 | sample->obs_domain_id, sample->obs_point_id); | |
2355 | break; | |
2356 | ||
b19e8793 IY |
2357 | case OFPACT_CLEAR_ACTIONS: |
2358 | ds_put_format(s, "%s", | |
ba0bc9b0 | 2359 | ovs_instruction_name_from_type( |
b19e8793 IY |
2360 | OVSINST_OFPIT11_CLEAR_ACTIONS)); |
2361 | break; | |
2362 | ||
4cceacb9 JS |
2363 | case OFPACT_WRITE_METADATA: |
2364 | metadata = ofpact_get_WRITE_METADATA(a); | |
2365 | ds_put_format(s, "%s:%#"PRIx64, | |
ba0bc9b0 | 2366 | ovs_instruction_name_from_type( |
4cceacb9 JS |
2367 | OVSINST_OFPIT11_WRITE_METADATA), |
2368 | ntohll(metadata->metadata)); | |
2369 | if (metadata->mask != htonll(UINT64_MAX)) { | |
2370 | ds_put_format(s, "/%#"PRIx64, ntohll(metadata->mask)); | |
2371 | } | |
2372 | break; | |
2373 | ||
8dd54666 IY |
2374 | case OFPACT_GOTO_TABLE: |
2375 | ds_put_format(s, "%s:%"PRIu8, | |
ba0bc9b0 | 2376 | ovs_instruction_name_from_type( |
8dd54666 IY |
2377 | OVSINST_OFPIT11_GOTO_TABLE), |
2378 | ofpact_get_GOTO_TABLE(a)->table_id); | |
2379 | break; | |
638a19b0 JR |
2380 | |
2381 | case OFPACT_METER: | |
2382 | ds_put_format(s, "%s:%"PRIu32, | |
ba0bc9b0 | 2383 | ovs_instruction_name_from_type(OVSINST_OFPIT13_METER), |
638a19b0 JR |
2384 | ofpact_get_METER(a)->meter_id); |
2385 | break; | |
f25d0cf3 BP |
2386 | } |
2387 | } | |
2388 | ||
2389 | /* Appends a string representing the 'ofpacts_len' bytes of ofpacts in | |
2390 | * 'ofpacts' to 'string'. */ | |
2391 | void | |
2392 | ofpacts_format(const struct ofpact *ofpacts, size_t ofpacts_len, | |
2393 | struct ds *string) | |
2394 | { | |
2395 | ds_put_cstr(string, "actions="); | |
2396 | if (!ofpacts_len) { | |
2397 | ds_put_cstr(string, "drop"); | |
2398 | } else { | |
2399 | const struct ofpact *a; | |
2400 | ||
2401 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
2402 | if (a != ofpacts) { | |
2403 | ds_put_cstr(string, ","); | |
2404 | } | |
8dd54666 | 2405 | |
5dca28b5 | 2406 | /* XXX write-actions */ |
f25d0cf3 BP |
2407 | ofpact_format(a, string); |
2408 | } | |
2409 | } | |
2410 | } | |
2411 | \f | |
2412 | /* Internal use by helpers. */ | |
2413 | ||
2414 | void * | |
2415 | ofpact_put(struct ofpbuf *ofpacts, enum ofpact_type type, size_t len) | |
2416 | { | |
2417 | struct ofpact *ofpact; | |
2418 | ||
2419 | ofpact_pad(ofpacts); | |
2420 | ofpact = ofpacts->l2 = ofpbuf_put_uninit(ofpacts, len); | |
2421 | ofpact_init(ofpact, type, len); | |
2422 | return ofpact; | |
2423 | } | |
2424 | ||
2425 | void | |
2426 | ofpact_init(struct ofpact *ofpact, enum ofpact_type type, size_t len) | |
2427 | { | |
2428 | memset(ofpact, 0, len); | |
2429 | ofpact->type = type; | |
2430 | ofpact->compat = OFPUTIL_ACTION_INVALID; | |
2431 | ofpact->len = len; | |
2432 | } | |
2433 | \f | |
2434 | /* Updates 'ofpact->len' to the number of bytes in the tail of 'ofpacts' | |
2435 | * starting at 'ofpact'. | |
2436 | * | |
2437 | * This is the correct way to update a variable-length ofpact's length after | |
2438 | * adding the variable-length part of the payload. (See the large comment | |
2439 | * near the end of ofp-actions.h for more information.) */ | |
2440 | void | |
2441 | ofpact_update_len(struct ofpbuf *ofpacts, struct ofpact *ofpact) | |
2442 | { | |
cb22974d | 2443 | ovs_assert(ofpact == ofpacts->l2); |
f25d0cf3 BP |
2444 | ofpact->len = (char *) ofpbuf_tail(ofpacts) - (char *) ofpact; |
2445 | } | |
2446 | ||
2447 | /* Pads out 'ofpacts' to a multiple of OFPACT_ALIGNTO bytes in length. Each | |
2448 | * ofpact_put_<ENUM>() calls this function automatically beforehand, but the | |
2449 | * client must call this itself after adding the final ofpact to an array of | |
2450 | * them. | |
2451 | * | |
2452 | * (The consequences of failing to call this function are probably not dire. | |
2453 | * OFPACT_FOR_EACH will calculate a pointer beyond the end of the ofpacts, but | |
2454 | * not dereference it. That's undefined behavior, technically, but it will not | |
2455 | * cause a real problem on common systems. Still, it seems better to call | |
2456 | * it.) */ | |
2457 | void | |
2458 | ofpact_pad(struct ofpbuf *ofpacts) | |
2459 | { | |
2460 | unsigned int rem = ofpacts->size % OFPACT_ALIGNTO; | |
2461 | if (rem) { | |
2462 | ofpbuf_put_zeros(ofpacts, OFPACT_ALIGNTO - rem); | |
2463 | } | |
2464 | } | |
f5c45121 SH |
2465 | |
2466 | void | |
2467 | ofpact_set_field_init(struct ofpact_reg_load *load, const struct mf_field *mf, | |
2468 | const void *src) | |
2469 | { | |
2470 | load->ofpact.compat = OFPUTIL_OFPAT12_SET_FIELD; | |
2471 | load->dst.field = mf; | |
2472 | load->dst.ofs = 0; | |
2473 | load->dst.n_bits = mf->n_bits; | |
2474 | bitwise_copy(src, mf->n_bytes, load->dst.ofs, | |
2475 | &load->subvalue, sizeof load->subvalue, 0, mf->n_bits); | |
2476 | } |