2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 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-print.h"
22 #include <sys/types.h>
23 #include <netinet/in.h>
24 #include <netinet/icmp6.h>
27 #include "byte-order.h"
28 #include "classifier.h"
29 #include "dynamic-string.h"
31 #include "meta-flow.h"
32 #include "multipath.h"
35 #include "ofp-actions.h"
36 #include "ofp-errors.h"
42 #include "unaligned.h"
43 #include "type-props.h"
47 VLOG_DEFINE_THIS_MODULE(ofp_util);
49 /* Rate limit for OpenFlow message parse errors. These always indicate a bug
50 * in the peer and so there's not much point in showing a lot of them. */
51 static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5);
53 static enum ofputil_table_miss ofputil_table_miss_from_config(
54 ovs_be32 config_, enum ofp_version);
56 struct ofp_prop_header {
61 /* Pulls a property, beginning with struct ofp_prop_header, from the beginning
62 * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is
63 * nonnull, the entire property, including the header, in '*property'. Returns
64 * 0 if successful, otherwise an error code.
66 * This function pulls the property's stated size padded out to a multiple of
67 * 'alignment' bytes. The common case in OpenFlow is an 'alignment' of 8, so
68 * you can use ofputil_pull_property() for that case. */
70 ofputil_pull_property__(struct ofpbuf *msg, struct ofpbuf *property,
71 unsigned int alignment, uint16_t *typep)
73 struct ofp_prop_header *oph;
74 unsigned int padded_len;
77 if (ofpbuf_size(msg) < sizeof *oph) {
78 return OFPERR_OFPBPC_BAD_LEN;
81 oph = ofpbuf_data(msg);
82 len = ntohs(oph->len);
83 padded_len = ROUND_UP(len, alignment);
84 if (len < sizeof *oph || padded_len > ofpbuf_size(msg)) {
85 return OFPERR_OFPBPC_BAD_LEN;
88 *typep = ntohs(oph->type);
90 ofpbuf_use_const(property, ofpbuf_data(msg), len);
92 ofpbuf_pull(msg, padded_len);
96 /* Pulls a property, beginning with struct ofp_prop_header, from the beginning
97 * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is
98 * nonnull, the entire property, including the header, in '*property'. Returns
99 * 0 if successful, otherwise an error code.
101 * This function pulls the property's stated size padded out to a multiple of
102 * 8 bytes, which is the common case for OpenFlow properties. */
104 ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *property,
107 return ofputil_pull_property__(msg, property, 8, typep);
110 static void PRINTF_FORMAT(2, 3)
111 log_property(bool loose, const char *message, ...)
113 enum vlog_level level = loose ? VLL_DBG : VLL_WARN;
114 if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) {
117 va_start(args, message);
118 vlog_valist(THIS_MODULE, level, message, args);
124 start_property(struct ofpbuf *msg, uint16_t type)
126 size_t start_ofs = ofpbuf_size(msg);
127 struct ofp_prop_header *oph;
129 oph = ofpbuf_put_uninit(msg, sizeof *oph);
130 oph->type = htons(type);
131 oph->len = htons(4); /* May be updated later by end_property(). */
136 end_property(struct ofpbuf *msg, size_t start_ofs)
138 struct ofp_prop_header *oph;
140 oph = ofpbuf_at_assert(msg, start_ofs, sizeof *oph);
141 oph->len = htons(ofpbuf_size(msg) - start_ofs);
142 ofpbuf_padto(msg, ROUND_UP(ofpbuf_size(msg), 8));
146 put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap)
148 for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) {
149 start_property(msg, rightmost_1bit_idx(bitmap));
153 /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns
154 * an IP netmask with a 1 in each bit that must match and a 0 in each bit that
157 * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0
158 * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits,
159 * ..., 32 and higher wildcard the entire field. This is the *opposite* of the
160 * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are
163 ofputil_wcbits_to_netmask(int wcbits)
166 return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0;
169 /* Given the IP netmask 'netmask', returns the number of bits of the IP address
170 * that it wildcards, that is, the number of 0-bits in 'netmask', a number
171 * between 0 and 32 inclusive.
173 * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will
174 * still be in the valid range but isn't otherwise meaningful. */
176 ofputil_netmask_to_wcbits(ovs_be32 netmask)
178 return 32 - ip_count_cidr_bits(netmask);
181 /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a
182 * flow_wildcards in 'wc' for use in struct match. It is the caller's
183 * responsibility to handle the special case where the flow match's dl_vlan is
184 * set to OFP_VLAN_NONE. */
186 ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc)
188 BUILD_ASSERT_DECL(FLOW_WC_SEQ == 28);
190 /* Initialize most of wc. */
191 flow_wildcards_init_catchall(wc);
193 if (!(ofpfw & OFPFW10_IN_PORT)) {
194 wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX);
197 if (!(ofpfw & OFPFW10_NW_TOS)) {
198 wc->masks.nw_tos |= IP_DSCP_MASK;
201 if (!(ofpfw & OFPFW10_NW_PROTO)) {
202 wc->masks.nw_proto = UINT8_MAX;
204 wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw
205 >> OFPFW10_NW_SRC_SHIFT);
206 wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw
207 >> OFPFW10_NW_DST_SHIFT);
209 if (!(ofpfw & OFPFW10_TP_SRC)) {
210 wc->masks.tp_src = OVS_BE16_MAX;
212 if (!(ofpfw & OFPFW10_TP_DST)) {
213 wc->masks.tp_dst = OVS_BE16_MAX;
216 if (!(ofpfw & OFPFW10_DL_SRC)) {
217 memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN);
219 if (!(ofpfw & OFPFW10_DL_DST)) {
220 memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN);
222 if (!(ofpfw & OFPFW10_DL_TYPE)) {
223 wc->masks.dl_type = OVS_BE16_MAX;
227 if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) {
228 wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI);
230 if (!(ofpfw & OFPFW10_DL_VLAN)) {
231 wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
235 /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */
237 ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch,
240 uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL;
242 /* Initialize match->wc. */
243 memset(&match->flow, 0, sizeof match->flow);
244 ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc);
246 /* Initialize most of match->flow. */
247 match->flow.nw_src = ofmatch->nw_src;
248 match->flow.nw_dst = ofmatch->nw_dst;
249 match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port));
250 match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type);
251 match->flow.tp_src = ofmatch->tp_src;
252 match->flow.tp_dst = ofmatch->tp_dst;
253 memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN);
254 memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN);
255 match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK;
256 match->flow.nw_proto = ofmatch->nw_proto;
258 /* Translate VLANs. */
259 if (!(ofpfw & OFPFW10_DL_VLAN) &&
260 ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) {
261 /* Match only packets without 802.1Q header.
263 * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct.
265 * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory,
266 * because we can't have a specific PCP without an 802.1Q header.
267 * However, older versions of OVS treated this as matching packets
268 * withut an 802.1Q header, so we do here too. */
269 match->flow.vlan_tci = htons(0);
270 match->wc.masks.vlan_tci = htons(0xffff);
272 ovs_be16 vid, pcp, tci;
275 vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK);
276 hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK;
278 tci = vid | pcp | htons(VLAN_CFI);
279 match->flow.vlan_tci = tci & match->wc.masks.vlan_tci;
283 match_zero_wildcarded_fields(match);
286 /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */
288 ofputil_match_to_ofp10_match(const struct match *match,
289 struct ofp10_match *ofmatch)
291 const struct flow_wildcards *wc = &match->wc;
294 /* Figure out most OpenFlow wildcards. */
296 if (!wc->masks.in_port.ofp_port) {
297 ofpfw |= OFPFW10_IN_PORT;
299 if (!wc->masks.dl_type) {
300 ofpfw |= OFPFW10_DL_TYPE;
302 if (!wc->masks.nw_proto) {
303 ofpfw |= OFPFW10_NW_PROTO;
305 ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src)
306 << OFPFW10_NW_SRC_SHIFT);
307 ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst)
308 << OFPFW10_NW_DST_SHIFT);
309 if (!(wc->masks.nw_tos & IP_DSCP_MASK)) {
310 ofpfw |= OFPFW10_NW_TOS;
312 if (!wc->masks.tp_src) {
313 ofpfw |= OFPFW10_TP_SRC;
315 if (!wc->masks.tp_dst) {
316 ofpfw |= OFPFW10_TP_DST;
318 if (eth_addr_is_zero(wc->masks.dl_src)) {
319 ofpfw |= OFPFW10_DL_SRC;
321 if (eth_addr_is_zero(wc->masks.dl_dst)) {
322 ofpfw |= OFPFW10_DL_DST;
325 /* Translate VLANs. */
326 ofmatch->dl_vlan = htons(0);
327 ofmatch->dl_vlan_pcp = 0;
328 if (match->wc.masks.vlan_tci == htons(0)) {
329 ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP;
330 } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI)
331 && !(match->flow.vlan_tci & htons(VLAN_CFI))) {
332 ofmatch->dl_vlan = htons(OFP10_VLAN_NONE);
333 ofpfw |= OFPFW10_DL_VLAN_PCP;
335 if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) {
336 ofpfw |= OFPFW10_DL_VLAN;
338 ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci));
341 if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) {
342 ofpfw |= OFPFW10_DL_VLAN_PCP;
344 ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci);
348 /* Compose most of the match structure. */
349 ofmatch->wildcards = htonl(ofpfw);
350 ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port));
351 memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN);
352 memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN);
353 ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type);
354 ofmatch->nw_src = match->flow.nw_src;
355 ofmatch->nw_dst = match->flow.nw_dst;
356 ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK;
357 ofmatch->nw_proto = match->flow.nw_proto;
358 ofmatch->tp_src = match->flow.tp_src;
359 ofmatch->tp_dst = match->flow.tp_dst;
360 memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1);
361 memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2);
365 ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match,
366 uint16_t *padded_match_len)
368 struct ofp11_match_header *omh = ofpbuf_data(buf);
371 if (ofpbuf_size(buf) < sizeof *omh) {
372 return OFPERR_OFPBMC_BAD_LEN;
375 match_len = ntohs(omh->length);
377 switch (ntohs(omh->type)) {
378 case OFPMT_STANDARD: {
379 struct ofp11_match *om;
381 if (match_len != sizeof *om || ofpbuf_size(buf) < sizeof *om) {
382 return OFPERR_OFPBMC_BAD_LEN;
384 om = ofpbuf_pull(buf, sizeof *om);
385 if (padded_match_len) {
386 *padded_match_len = match_len;
388 return ofputil_match_from_ofp11_match(om, match);
392 if (padded_match_len) {
393 *padded_match_len = ROUND_UP(match_len, 8);
395 return oxm_pull_match(buf, match);
398 return OFPERR_OFPBMC_BAD_TYPE;
402 /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'.
403 * Returns 0 if successful, otherwise an OFPERR_* value. */
405 ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch,
408 uint16_t wc = ntohl(ofmatch->wildcards);
409 uint8_t dl_src_mask[ETH_ADDR_LEN];
410 uint8_t dl_dst_mask[ETH_ADDR_LEN];
411 bool ipv4, arp, rarp;
414 match_init_catchall(match);
416 if (!(wc & OFPFW11_IN_PORT)) {
420 error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port);
422 return OFPERR_OFPBMC_BAD_VALUE;
424 match_set_in_port(match, ofp_port);
427 for (i = 0; i < ETH_ADDR_LEN; i++) {
428 dl_src_mask[i] = ~ofmatch->dl_src_mask[i];
430 match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask);
432 for (i = 0; i < ETH_ADDR_LEN; i++) {
433 dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i];
435 match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask);
437 if (!(wc & OFPFW11_DL_VLAN)) {
438 if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) {
439 /* Match only packets without a VLAN tag. */
440 match->flow.vlan_tci = htons(0);
441 match->wc.masks.vlan_tci = OVS_BE16_MAX;
443 if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) {
444 /* Match any packet with a VLAN tag regardless of VID. */
445 match->flow.vlan_tci = htons(VLAN_CFI);
446 match->wc.masks.vlan_tci = htons(VLAN_CFI);
447 } else if (ntohs(ofmatch->dl_vlan) < 4096) {
448 /* Match only packets with the specified VLAN VID. */
449 match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan;
450 match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK);
453 return OFPERR_OFPBMC_BAD_VALUE;
456 if (!(wc & OFPFW11_DL_VLAN_PCP)) {
457 if (ofmatch->dl_vlan_pcp <= 7) {
458 match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp
460 match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK);
463 return OFPERR_OFPBMC_BAD_VALUE;
469 if (!(wc & OFPFW11_DL_TYPE)) {
470 match_set_dl_type(match,
471 ofputil_dl_type_from_openflow(ofmatch->dl_type));
474 ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP);
475 arp = match->flow.dl_type == htons(ETH_TYPE_ARP);
476 rarp = match->flow.dl_type == htons(ETH_TYPE_RARP);
478 if (ipv4 && !(wc & OFPFW11_NW_TOS)) {
479 if (ofmatch->nw_tos & ~IP_DSCP_MASK) {
481 return OFPERR_OFPBMC_BAD_VALUE;
484 match_set_nw_dscp(match, ofmatch->nw_tos);
487 if (ipv4 || arp || rarp) {
488 if (!(wc & OFPFW11_NW_PROTO)) {
489 match_set_nw_proto(match, ofmatch->nw_proto);
491 match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask);
492 match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask);
495 #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST)
496 if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) {
497 switch (match->flow.nw_proto) {
499 /* "A.2.3 Flow Match Structures" in OF1.1 says:
501 * The tp_src and tp_dst fields will be ignored unless the
502 * network protocol specified is as TCP, UDP or SCTP.
504 * but I'm pretty sure we should support ICMP too, otherwise
505 * that's a regression from OF1.0. */
506 if (!(wc & OFPFW11_TP_SRC)) {
507 uint16_t icmp_type = ntohs(ofmatch->tp_src);
508 if (icmp_type < 0x100) {
509 match_set_icmp_type(match, icmp_type);
511 return OFPERR_OFPBMC_BAD_FIELD;
514 if (!(wc & OFPFW11_TP_DST)) {
515 uint16_t icmp_code = ntohs(ofmatch->tp_dst);
516 if (icmp_code < 0x100) {
517 match_set_icmp_code(match, icmp_code);
519 return OFPERR_OFPBMC_BAD_FIELD;
527 if (!(wc & (OFPFW11_TP_SRC))) {
528 match_set_tp_src(match, ofmatch->tp_src);
530 if (!(wc & (OFPFW11_TP_DST))) {
531 match_set_tp_dst(match, ofmatch->tp_dst);
536 /* OF1.1 says explicitly to ignore this. */
541 if (eth_type_mpls(match->flow.dl_type)) {
542 if (!(wc & OFPFW11_MPLS_LABEL)) {
543 match_set_mpls_label(match, 0, ofmatch->mpls_label);
545 if (!(wc & OFPFW11_MPLS_TC)) {
546 match_set_mpls_tc(match, 0, ofmatch->mpls_tc);
550 match_set_metadata_masked(match, ofmatch->metadata,
551 ~ofmatch->metadata_mask);
556 /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */
558 ofputil_match_to_ofp11_match(const struct match *match,
559 struct ofp11_match *ofmatch)
564 memset(ofmatch, 0, sizeof *ofmatch);
565 ofmatch->omh.type = htons(OFPMT_STANDARD);
566 ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH);
568 if (!match->wc.masks.in_port.ofp_port) {
569 wc |= OFPFW11_IN_PORT;
571 ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port);
574 memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN);
575 for (i = 0; i < ETH_ADDR_LEN; i++) {
576 ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i];
579 memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN);
580 for (i = 0; i < ETH_ADDR_LEN; i++) {
581 ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i];
584 if (match->wc.masks.vlan_tci == htons(0)) {
585 wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP;
586 } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI)
587 && !(match->flow.vlan_tci & htons(VLAN_CFI))) {
588 ofmatch->dl_vlan = htons(OFPVID11_NONE);
589 wc |= OFPFW11_DL_VLAN_PCP;
591 if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) {
592 ofmatch->dl_vlan = htons(OFPVID11_ANY);
594 ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci));
597 if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) {
598 wc |= OFPFW11_DL_VLAN_PCP;
600 ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci);
604 if (!match->wc.masks.dl_type) {
605 wc |= OFPFW11_DL_TYPE;
607 ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type);
610 if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) {
611 wc |= OFPFW11_NW_TOS;
613 ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK;
616 if (!match->wc.masks.nw_proto) {
617 wc |= OFPFW11_NW_PROTO;
619 ofmatch->nw_proto = match->flow.nw_proto;
622 ofmatch->nw_src = match->flow.nw_src;
623 ofmatch->nw_src_mask = ~match->wc.masks.nw_src;
624 ofmatch->nw_dst = match->flow.nw_dst;
625 ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst;
627 if (!match->wc.masks.tp_src) {
628 wc |= OFPFW11_TP_SRC;
630 ofmatch->tp_src = match->flow.tp_src;
633 if (!match->wc.masks.tp_dst) {
634 wc |= OFPFW11_TP_DST;
636 ofmatch->tp_dst = match->flow.tp_dst;
639 if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) {
640 wc |= OFPFW11_MPLS_LABEL;
642 ofmatch->mpls_label = htonl(mpls_lse_to_label(
643 match->flow.mpls_lse[0]));
646 if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) {
647 wc |= OFPFW11_MPLS_TC;
649 ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]);
652 ofmatch->metadata = match->flow.metadata;
653 ofmatch->metadata_mask = ~match->wc.masks.metadata;
655 ofmatch->wildcards = htonl(wc);
658 /* Returns the "typical" length of a match for 'protocol', for use in
659 * estimating space to preallocate. */
661 ofputil_match_typical_len(enum ofputil_protocol protocol)
664 case OFPUTIL_P_OF10_STD:
665 case OFPUTIL_P_OF10_STD_TID:
666 return sizeof(struct ofp10_match);
668 case OFPUTIL_P_OF10_NXM:
669 case OFPUTIL_P_OF10_NXM_TID:
670 return NXM_TYPICAL_LEN;
672 case OFPUTIL_P_OF11_STD:
673 return sizeof(struct ofp11_match);
675 case OFPUTIL_P_OF12_OXM:
676 case OFPUTIL_P_OF13_OXM:
677 case OFPUTIL_P_OF14_OXM:
678 case OFPUTIL_P_OF15_OXM:
679 return NXM_TYPICAL_LEN;
686 /* Appends to 'b' an struct ofp11_match_header followed by a match that
687 * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the
688 * data appended out to a multiple of 8. 'protocol' must be one that is usable
689 * in OpenFlow 1.1 or later.
691 * This function can cause 'b''s data to be reallocated.
693 * Returns the number of bytes appended to 'b', excluding the padding. Never
696 ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match,
697 enum ofputil_protocol protocol)
700 case OFPUTIL_P_OF10_STD:
701 case OFPUTIL_P_OF10_STD_TID:
702 case OFPUTIL_P_OF10_NXM:
703 case OFPUTIL_P_OF10_NXM_TID:
706 case OFPUTIL_P_OF11_STD: {
707 struct ofp11_match *om;
709 /* Make sure that no padding is needed. */
710 BUILD_ASSERT_DECL(sizeof *om % 8 == 0);
712 om = ofpbuf_put_uninit(b, sizeof *om);
713 ofputil_match_to_ofp11_match(match, om);
717 case OFPUTIL_P_OF12_OXM:
718 case OFPUTIL_P_OF13_OXM:
719 case OFPUTIL_P_OF14_OXM:
720 case OFPUTIL_P_OF15_OXM:
721 return oxm_put_match(b, match,
722 ofputil_protocol_to_ofp_version(protocol));
728 /* Given a 'dl_type' value in the format used in struct flow, returns the
729 * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match
732 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type)
734 return (flow_dl_type == htons(FLOW_DL_TYPE_NONE)
735 ? htons(OFP_DL_TYPE_NOT_ETH_TYPE)
739 /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match
740 * structure, returns the corresponding 'dl_type' value for use in struct
743 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type)
745 return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE)
746 ? htons(FLOW_DL_TYPE_NONE)
752 struct proto_abbrev {
753 enum ofputil_protocol protocol;
757 /* Most users really don't care about some of the differences between
758 * protocols. These abbreviations help with that. */
759 static const struct proto_abbrev proto_abbrevs[] = {
760 { OFPUTIL_P_ANY, "any" },
761 { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" },
762 { OFPUTIL_P_OF10_NXM_ANY, "NXM" },
763 { OFPUTIL_P_ANY_OXM, "OXM" },
765 #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs)
767 enum ofputil_protocol ofputil_flow_dump_protocols[] = {
776 size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols);
778 /* Returns the set of ofputil_protocols that are supported with the given
779 * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version
780 * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0
781 * if 'version' is not supported or outside the valid range. */
782 enum ofputil_protocol
783 ofputil_protocols_from_ofp_version(enum ofp_version version)
787 return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY;
789 return OFPUTIL_P_OF11_STD;
791 return OFPUTIL_P_OF12_OXM;
793 return OFPUTIL_P_OF13_OXM;
795 return OFPUTIL_P_OF14_OXM;
797 return OFPUTIL_P_OF15_OXM;
803 /* Returns the ofputil_protocol that is initially in effect on an OpenFlow
804 * connection that has negotiated the given 'version'. 'version' should
805 * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow
806 * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or
807 * outside the valid range. */
808 enum ofputil_protocol
809 ofputil_protocol_from_ofp_version(enum ofp_version version)
811 return rightmost_1bit(ofputil_protocols_from_ofp_version(version));
814 /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION,
815 * etc.) that corresponds to 'protocol'. */
817 ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol)
820 case OFPUTIL_P_OF10_STD:
821 case OFPUTIL_P_OF10_STD_TID:
822 case OFPUTIL_P_OF10_NXM:
823 case OFPUTIL_P_OF10_NXM_TID:
824 return OFP10_VERSION;
825 case OFPUTIL_P_OF11_STD:
826 return OFP11_VERSION;
827 case OFPUTIL_P_OF12_OXM:
828 return OFP12_VERSION;
829 case OFPUTIL_P_OF13_OXM:
830 return OFP13_VERSION;
831 case OFPUTIL_P_OF14_OXM:
832 return OFP14_VERSION;
833 case OFPUTIL_P_OF15_OXM:
834 return OFP15_VERSION;
840 /* Returns a bitmap of OpenFlow versions that are supported by at
841 * least one of the 'protocols'. */
843 ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols)
847 for (; protocols; protocols = zero_rightmost_1bit(protocols)) {
848 enum ofputil_protocol protocol = rightmost_1bit(protocols);
850 bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol);
856 /* Returns the set of protocols that are supported on top of the
857 * OpenFlow versions included in 'bitmap'. */
858 enum ofputil_protocol
859 ofputil_protocols_from_version_bitmap(uint32_t bitmap)
861 enum ofputil_protocol protocols = 0;
863 for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) {
864 enum ofp_version version = rightmost_1bit_idx(bitmap);
866 protocols |= ofputil_protocols_from_ofp_version(version);
872 /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false
875 ofputil_protocol_is_valid(enum ofputil_protocol protocol)
877 return protocol & OFPUTIL_P_ANY && is_pow2(protocol);
880 /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id
881 * extension turned on or off if 'enable' is true or false, respectively.
883 * This extension is only useful for protocols whose "standard" version does
884 * not allow specific tables to be modified. In particular, this is true of
885 * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always
886 * specifies a table ID and so there is no need for such an extension. When
887 * 'protocol' is such a protocol that doesn't need a flow_mod_table_id
888 * extension, this function just returns its 'protocol' argument unchanged
889 * regardless of the value of 'enable'. */
890 enum ofputil_protocol
891 ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable)
894 case OFPUTIL_P_OF10_STD:
895 case OFPUTIL_P_OF10_STD_TID:
896 return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD;
898 case OFPUTIL_P_OF10_NXM:
899 case OFPUTIL_P_OF10_NXM_TID:
900 return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM;
902 case OFPUTIL_P_OF11_STD:
903 return OFPUTIL_P_OF11_STD;
905 case OFPUTIL_P_OF12_OXM:
906 return OFPUTIL_P_OF12_OXM;
908 case OFPUTIL_P_OF13_OXM:
909 return OFPUTIL_P_OF13_OXM;
911 case OFPUTIL_P_OF14_OXM:
912 return OFPUTIL_P_OF14_OXM;
914 case OFPUTIL_P_OF15_OXM:
915 return OFPUTIL_P_OF15_OXM;
922 /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes
923 * some extension to a standard protocol version, the return value is the
924 * standard version of that protocol without any extension. If 'protocol' is a
925 * standard protocol version, returns 'protocol' unchanged. */
926 enum ofputil_protocol
927 ofputil_protocol_to_base(enum ofputil_protocol protocol)
929 return ofputil_protocol_set_tid(protocol, false);
932 /* Returns 'new_base' with any extensions taken from 'cur'. */
933 enum ofputil_protocol
934 ofputil_protocol_set_base(enum ofputil_protocol cur,
935 enum ofputil_protocol new_base)
937 bool tid = (cur & OFPUTIL_P_TID) != 0;
940 case OFPUTIL_P_OF10_STD:
941 case OFPUTIL_P_OF10_STD_TID:
942 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid);
944 case OFPUTIL_P_OF10_NXM:
945 case OFPUTIL_P_OF10_NXM_TID:
946 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid);
948 case OFPUTIL_P_OF11_STD:
949 return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid);
951 case OFPUTIL_P_OF12_OXM:
952 return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid);
954 case OFPUTIL_P_OF13_OXM:
955 return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid);
957 case OFPUTIL_P_OF14_OXM:
958 return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid);
960 case OFPUTIL_P_OF15_OXM:
961 return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid);
968 /* Returns a string form of 'protocol', if a simple form exists (that is, if
969 * 'protocol' is either a single protocol or it is a combination of protocols
970 * that have a single abbreviation). Otherwise, returns NULL. */
972 ofputil_protocol_to_string(enum ofputil_protocol protocol)
974 const struct proto_abbrev *p;
976 /* Use a "switch" statement for single-bit names so that we get a compiler
977 * warning if we forget any. */
979 case OFPUTIL_P_OF10_NXM:
980 return "NXM-table_id";
982 case OFPUTIL_P_OF10_NXM_TID:
983 return "NXM+table_id";
985 case OFPUTIL_P_OF10_STD:
986 return "OpenFlow10-table_id";
988 case OFPUTIL_P_OF10_STD_TID:
989 return "OpenFlow10+table_id";
991 case OFPUTIL_P_OF11_STD:
994 case OFPUTIL_P_OF12_OXM:
995 return "OXM-OpenFlow12";
997 case OFPUTIL_P_OF13_OXM:
998 return "OXM-OpenFlow13";
1000 case OFPUTIL_P_OF14_OXM:
1001 return "OXM-OpenFlow14";
1003 case OFPUTIL_P_OF15_OXM:
1004 return "OXM-OpenFlow15";
1007 /* Check abbreviations. */
1008 for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
1009 if (protocol == p->protocol) {
1017 /* Returns a string that represents 'protocols'. The return value might be a
1018 * comma-separated list if 'protocols' doesn't have a simple name. The return
1019 * value is "none" if 'protocols' is 0.
1021 * The caller must free the returned string (with free()). */
1023 ofputil_protocols_to_string(enum ofputil_protocol protocols)
1027 ovs_assert(!(protocols & ~OFPUTIL_P_ANY));
1028 if (protocols == 0) {
1029 return xstrdup("none");
1034 const struct proto_abbrev *p;
1038 ds_put_char(&s, ',');
1041 for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
1042 if ((protocols & p->protocol) == p->protocol) {
1043 ds_put_cstr(&s, p->name);
1044 protocols &= ~p->protocol;
1049 for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) {
1050 enum ofputil_protocol bit = 1u << i;
1052 if (protocols & bit) {
1053 ds_put_cstr(&s, ofputil_protocol_to_string(bit));
1062 return ds_steal_cstr(&s);
1065 static enum ofputil_protocol
1066 ofputil_protocol_from_string__(const char *s, size_t n)
1068 const struct proto_abbrev *p;
1071 for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) {
1072 enum ofputil_protocol bit = 1u << i;
1073 const char *name = ofputil_protocol_to_string(bit);
1075 if (name && n == strlen(name) && !strncasecmp(s, name, n)) {
1080 for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
1081 if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) {
1089 /* Returns the nonempty set of protocols represented by 's', which can be a
1090 * single protocol name or abbreviation or a comma-separated list of them.
1092 * Aborts the program with an error message if 's' is invalid. */
1093 enum ofputil_protocol
1094 ofputil_protocols_from_string(const char *s)
1096 const char *orig_s = s;
1097 enum ofputil_protocol protocols;
1101 enum ofputil_protocol p;
1104 n = strcspn(s, ",");
1110 p = ofputil_protocol_from_string__(s, n);
1112 ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s);
1120 ovs_fatal(0, "%s: no flow protocol specified", orig_s);
1126 ofputil_version_from_string(const char *s)
1128 if (!strcasecmp(s, "OpenFlow10")) {
1129 return OFP10_VERSION;
1131 if (!strcasecmp(s, "OpenFlow11")) {
1132 return OFP11_VERSION;
1134 if (!strcasecmp(s, "OpenFlow12")) {
1135 return OFP12_VERSION;
1137 if (!strcasecmp(s, "OpenFlow13")) {
1138 return OFP13_VERSION;
1140 if (!strcasecmp(s, "OpenFlow14")) {
1141 return OFP14_VERSION;
1143 if (!strcasecmp(s, "OpenFlow15")) {
1144 return OFP15_VERSION;
1150 is_delimiter(unsigned char c)
1152 return isspace(c) || c == ',';
1156 ofputil_versions_from_string(const char *s)
1159 uint32_t bitmap = 0;
1166 if (is_delimiter(s[i])) {
1171 while (s[i + j] && !is_delimiter(s[i + j])) {
1174 key = xmemdup0(s + i, j);
1175 version = ofputil_version_from_string(key);
1177 VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key);
1180 bitmap |= 1u << version;
1188 ofputil_versions_from_strings(char ** const s, size_t count)
1190 uint32_t bitmap = 0;
1193 int version = ofputil_version_from_string(s[count]);
1195 VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]);
1197 bitmap |= 1u << version;
1205 ofputil_version_to_string(enum ofp_version ofp_version)
1207 switch (ofp_version) {
1209 return "OpenFlow10";
1211 return "OpenFlow11";
1213 return "OpenFlow12";
1215 return "OpenFlow13";
1217 return "OpenFlow14";
1219 return "OpenFlow15";
1226 ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format)
1228 switch (packet_in_format) {
1229 case NXPIF_OPENFLOW10:
1238 ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format)
1240 switch (packet_in_format) {
1241 case NXPIF_OPENFLOW10:
1242 return "openflow10";
1251 ofputil_packet_in_format_from_string(const char *s)
1253 return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10
1254 : !strcmp(s, "nxm") ? NXPIF_NXM
1259 ofputil_format_version(struct ds *msg, enum ofp_version version)
1261 ds_put_format(msg, "0x%02x", version);
1265 ofputil_format_version_name(struct ds *msg, enum ofp_version version)
1267 ds_put_cstr(msg, ofputil_version_to_string(version));
1271 ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap,
1272 void (*format_version)(struct ds *msg,
1276 format_version(msg, raw_ctz(bitmap));
1277 bitmap = zero_rightmost_1bit(bitmap);
1279 ds_put_cstr(msg, ", ");
1285 ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap)
1287 ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version);
1291 ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap)
1293 ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name);
1297 ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh,
1298 uint32_t *allowed_versionsp)
1300 uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh;
1301 const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1);
1302 uint32_t allowed_versions;
1304 if (!bitmap_len || bitmap_len % sizeof *bitmap) {
1308 /* Only use the first 32-bit element of the bitmap as that is all the
1309 * current implementation supports. Subsequent elements are ignored which
1310 * should have no effect on session negotiation until Open vSwtich supports
1311 * wire-protocol versions greater than 31.
1313 allowed_versions = ntohl(bitmap[0]);
1315 if (allowed_versions & 1) {
1316 /* There's no OpenFlow version 0. */
1317 VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow "
1319 allowed_versions &= ~1u;
1322 if (!allowed_versions) {
1323 VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow "
1324 "version (between 0x01 and 0x1f)");
1328 *allowed_versionsp = allowed_versions;
1333 version_bitmap_from_version(uint8_t ofp_version)
1335 return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1;
1338 /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions'
1339 * the set of OpenFlow versions for which 'oh' announces support.
1341 * Because of how OpenFlow defines OFPT_HELLO messages, this function is always
1342 * successful, and thus '*allowed_versions' is always initialized. However, it
1343 * returns false if 'oh' contains some data that could not be fully understood,
1344 * true if 'oh' was completely parsed. */
1346 ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions)
1351 ofpbuf_use_const(&msg, oh, ntohs(oh->length));
1352 ofpbuf_pull(&msg, sizeof *oh);
1354 *allowed_versions = version_bitmap_from_version(oh->version);
1355 while (ofpbuf_size(&msg)) {
1356 const struct ofp_hello_elem_header *oheh;
1359 if (ofpbuf_size(&msg) < sizeof *oheh) {
1363 oheh = ofpbuf_data(&msg);
1364 len = ntohs(oheh->length);
1365 if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) {
1369 if (oheh->type != htons(OFPHET_VERSIONBITMAP)
1370 || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) {
1378 /* Returns true if 'allowed_versions' needs to be accompanied by a version
1379 * bitmap to be correctly expressed in an OFPT_HELLO message. */
1381 should_send_version_bitmap(uint32_t allowed_versions)
1383 return !is_pow2((allowed_versions >> 1) + 1);
1386 /* Create an OFPT_HELLO message that expresses support for the OpenFlow
1387 * versions in the 'allowed_versions' bitmaps and returns the message. */
1389 ofputil_encode_hello(uint32_t allowed_versions)
1391 enum ofp_version ofp_version;
1394 ofp_version = leftmost_1bit_idx(allowed_versions);
1395 msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0);
1397 if (should_send_version_bitmap(allowed_versions)) {
1398 struct ofp_hello_elem_header *oheh;
1401 map_len = sizeof allowed_versions;
1402 oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8));
1403 oheh->type = htons(OFPHET_VERSIONBITMAP);
1404 oheh->length = htons(map_len + sizeof *oheh);
1405 *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions);
1407 ofpmsg_update_length(msg);
1413 /* Returns an OpenFlow message that, sent on an OpenFlow connection whose
1414 * protocol is 'current', at least partly transitions the protocol to 'want'.
1415 * Stores in '*next' the protocol that will be in effect on the OpenFlow
1416 * connection if the switch processes the returned message correctly. (If
1417 * '*next != want' then the caller will have to iterate.)
1419 * If 'current == want', or if it is not possible to transition from 'current'
1420 * to 'want' (because, for example, 'current' and 'want' use different OpenFlow
1421 * protocol versions), returns NULL and stores 'current' in '*next'. */
1423 ofputil_encode_set_protocol(enum ofputil_protocol current,
1424 enum ofputil_protocol want,
1425 enum ofputil_protocol *next)
1427 enum ofp_version cur_version, want_version;
1428 enum ofputil_protocol cur_base, want_base;
1429 bool cur_tid, want_tid;
1431 cur_version = ofputil_protocol_to_ofp_version(current);
1432 want_version = ofputil_protocol_to_ofp_version(want);
1433 if (cur_version != want_version) {
1438 cur_base = ofputil_protocol_to_base(current);
1439 want_base = ofputil_protocol_to_base(want);
1440 if (cur_base != want_base) {
1441 *next = ofputil_protocol_set_base(current, want_base);
1443 switch (want_base) {
1444 case OFPUTIL_P_OF10_NXM:
1445 return ofputil_encode_nx_set_flow_format(NXFF_NXM);
1447 case OFPUTIL_P_OF10_STD:
1448 return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10);
1450 case OFPUTIL_P_OF11_STD:
1451 case OFPUTIL_P_OF12_OXM:
1452 case OFPUTIL_P_OF13_OXM:
1453 case OFPUTIL_P_OF14_OXM:
1454 case OFPUTIL_P_OF15_OXM:
1455 /* There is only one variant of each OpenFlow 1.1+ protocol, and we
1456 * verified above that we're not trying to change versions. */
1459 case OFPUTIL_P_OF10_STD_TID:
1460 case OFPUTIL_P_OF10_NXM_TID:
1465 cur_tid = (current & OFPUTIL_P_TID) != 0;
1466 want_tid = (want & OFPUTIL_P_TID) != 0;
1467 if (cur_tid != want_tid) {
1468 *next = ofputil_protocol_set_tid(current, want_tid);
1469 return ofputil_make_flow_mod_table_id(want_tid);
1472 ovs_assert(current == want);
1478 /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow
1479 * format to 'nxff'. */
1481 ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff)
1483 struct nx_set_flow_format *sff;
1486 ovs_assert(ofputil_nx_flow_format_is_valid(nxff));
1488 msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0);
1489 sff = ofpbuf_put_zeros(msg, sizeof *sff);
1490 sff->format = htonl(nxff);
1495 /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false
1497 enum ofputil_protocol
1498 ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format)
1500 switch (flow_format) {
1501 case NXFF_OPENFLOW10:
1502 return OFPUTIL_P_OF10_STD;
1505 return OFPUTIL_P_OF10_NXM;
1512 /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */
1514 ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format)
1516 return ofputil_nx_flow_format_to_protocol(flow_format) != 0;
1519 /* Returns a string version of 'flow_format', which must be a valid NXFF_*
1522 ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format)
1524 switch (flow_format) {
1525 case NXFF_OPENFLOW10:
1526 return "openflow10";
1535 ofputil_make_set_packet_in_format(enum ofp_version ofp_version,
1536 enum nx_packet_in_format packet_in_format)
1538 struct nx_set_packet_in_format *spif;
1541 msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0);
1542 spif = ofpbuf_put_zeros(msg, sizeof *spif);
1543 spif->format = htonl(packet_in_format);
1548 /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id
1549 * extension on or off (according to 'flow_mod_table_id'). */
1551 ofputil_make_flow_mod_table_id(bool flow_mod_table_id)
1553 struct nx_flow_mod_table_id *nfmti;
1556 msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0);
1557 nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti);
1558 nfmti->set = flow_mod_table_id;
1562 struct ofputil_flow_mod_flag {
1564 enum ofp_version min_version, max_version;
1565 enum ofputil_flow_mod_flags flag;
1568 static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = {
1569 { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM },
1570 { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP },
1571 { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION,
1573 { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS },
1574 { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS },
1575 { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS },
1580 ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_,
1581 enum ofp_flow_mod_command command,
1582 enum ofp_version version,
1583 enum ofputil_flow_mod_flags *flagsp)
1585 uint16_t raw_flags = ntohs(raw_flags_);
1586 const struct ofputil_flow_mod_flag *f;
1589 for (f = ofputil_flow_mod_flags; f->raw_flag; f++) {
1590 if (raw_flags & f->raw_flag
1591 && version >= f->min_version
1592 && (!f->max_version || version <= f->max_version)) {
1593 raw_flags &= ~f->raw_flag;
1598 /* In OF1.0 and OF1.1, "add" always resets counters, and other commands
1601 * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command
1602 * resets counters. */
1603 if ((version == OFP10_VERSION || version == OFP11_VERSION)
1604 && command == OFPFC_ADD) {
1605 *flagsp |= OFPUTIL_FF_RESET_COUNTS;
1608 return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0;
1612 ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags,
1613 enum ofp_version version)
1615 const struct ofputil_flow_mod_flag *f;
1619 for (f = ofputil_flow_mod_flags; f->raw_flag; f++) {
1621 && version >= f->min_version
1622 && (!f->max_version || version <= f->max_version)) {
1623 raw_flags |= f->raw_flag;
1627 return htons(raw_flags);
1630 /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract
1631 * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error
1634 * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions.
1635 * The caller must initialize 'ofpacts' and retains ownership of it.
1636 * 'fm->ofpacts' will point into the 'ofpacts' buffer.
1638 * Does not validate the flow_mod actions. The caller should do that, with
1639 * ofpacts_check(). */
1641 ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
1642 const struct ofp_header *oh,
1643 enum ofputil_protocol protocol,
1644 struct ofpbuf *ofpacts,
1645 ofp_port_t max_port, uint8_t max_table)
1652 /* Ignored for non-delete actions */
1653 fm->delete_reason = OFPRR_DELETE;
1655 ofpbuf_use_const(&b, oh, ntohs(oh->length));
1656 raw = ofpraw_pull_assert(&b);
1657 if (raw == OFPRAW_OFPT11_FLOW_MOD) {
1658 /* Standard OpenFlow 1.1+ flow_mod. */
1659 const struct ofp11_flow_mod *ofm;
1661 ofm = ofpbuf_pull(&b, sizeof *ofm);
1663 error = ofputil_pull_ofp11_match(&b, &fm->match, NULL);
1668 /* Translate the message. */
1669 fm->priority = ntohs(ofm->priority);
1670 if (ofm->command == OFPFC_ADD
1671 || (oh->version == OFP11_VERSION
1672 && (ofm->command == OFPFC_MODIFY ||
1673 ofm->command == OFPFC_MODIFY_STRICT)
1674 && ofm->cookie_mask == htonll(0))) {
1675 /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does
1676 * not match on the cookie is treated as an "add" if there is no
1678 fm->cookie = htonll(0);
1679 fm->cookie_mask = htonll(0);
1680 fm->new_cookie = ofm->cookie;
1682 fm->cookie = ofm->cookie;
1683 fm->cookie_mask = ofm->cookie_mask;
1684 fm->new_cookie = OVS_BE64_MAX;
1686 fm->modify_cookie = false;
1687 fm->command = ofm->command;
1691 * OF1.1 entirely forbids table_id == OFPTT_ALL.
1692 * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */
1693 fm->table_id = ofm->table_id;
1694 if (fm->table_id == OFPTT_ALL
1695 && (oh->version == OFP11_VERSION
1696 || (ofm->command != OFPFC_DELETE &&
1697 ofm->command != OFPFC_DELETE_STRICT))) {
1698 return OFPERR_OFPFMFC_BAD_TABLE_ID;
1701 fm->idle_timeout = ntohs(ofm->idle_timeout);
1702 fm->hard_timeout = ntohs(ofm->hard_timeout);
1703 if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) {
1704 fm->importance = ntohs(ofm->importance);
1708 fm->buffer_id = ntohl(ofm->buffer_id);
1709 error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port);
1714 fm->out_group = (ofm->command == OFPFC_DELETE ||
1715 ofm->command == OFPFC_DELETE_STRICT
1716 ? ntohl(ofm->out_group)
1718 raw_flags = ofm->flags;
1722 if (raw == OFPRAW_OFPT10_FLOW_MOD) {
1723 /* Standard OpenFlow 1.0 flow_mod. */
1724 const struct ofp10_flow_mod *ofm;
1726 /* Get the ofp10_flow_mod. */
1727 ofm = ofpbuf_pull(&b, sizeof *ofm);
1729 /* Translate the rule. */
1730 ofputil_match_from_ofp10_match(&ofm->match, &fm->match);
1731 ofputil_normalize_match(&fm->match);
1733 /* OpenFlow 1.0 says that exact-match rules have to have the
1734 * highest possible priority. */
1735 fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL)
1736 ? ntohs(ofm->priority)
1739 /* Translate the message. */
1740 command = ntohs(ofm->command);
1741 fm->cookie = htonll(0);
1742 fm->cookie_mask = htonll(0);
1743 fm->new_cookie = ofm->cookie;
1744 fm->idle_timeout = ntohs(ofm->idle_timeout);
1745 fm->hard_timeout = ntohs(ofm->hard_timeout);
1747 fm->buffer_id = ntohl(ofm->buffer_id);
1748 fm->out_port = u16_to_ofp(ntohs(ofm->out_port));
1749 fm->out_group = OFPG11_ANY;
1750 raw_flags = ofm->flags;
1751 } else if (raw == OFPRAW_NXT_FLOW_MOD) {
1752 /* Nicira extended flow_mod. */
1753 const struct nx_flow_mod *nfm;
1755 /* Dissect the message. */
1756 nfm = ofpbuf_pull(&b, sizeof *nfm);
1757 error = nx_pull_match(&b, ntohs(nfm->match_len),
1758 &fm->match, &fm->cookie, &fm->cookie_mask);
1763 /* Translate the message. */
1764 command = ntohs(nfm->command);
1765 if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) {
1766 /* Flow additions may only set a new cookie, not match an
1767 * existing cookie. */
1768 return OFPERR_NXBRC_NXM_INVALID;
1770 fm->priority = ntohs(nfm->priority);
1771 fm->new_cookie = nfm->cookie;
1772 fm->idle_timeout = ntohs(nfm->idle_timeout);
1773 fm->hard_timeout = ntohs(nfm->hard_timeout);
1775 fm->buffer_id = ntohl(nfm->buffer_id);
1776 fm->out_port = u16_to_ofp(ntohs(nfm->out_port));
1777 fm->out_group = OFPG11_ANY;
1778 raw_flags = nfm->flags;
1783 fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX;
1784 if (protocol & OFPUTIL_P_TID) {
1785 fm->command = command & 0xff;
1786 fm->table_id = command >> 8;
1788 fm->command = command;
1789 fm->table_id = 0xff;
1793 error = ofpacts_pull_openflow_instructions(&b, ofpbuf_size(&b),
1794 oh->version, ofpacts);
1798 fm->ofpacts = ofpbuf_data(ofpacts);
1799 fm->ofpacts_len = ofpbuf_size(ofpacts);
1801 error = ofputil_decode_flow_mod_flags(raw_flags, fm->command,
1802 oh->version, &fm->flags);
1807 if (fm->flags & OFPUTIL_FF_EMERG) {
1808 /* We do not support the OpenFlow 1.0 emergency flow cache, which
1809 * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1.
1811 * OpenFlow 1.0 specifies the error code to use when idle_timeout
1812 * or hard_timeout is nonzero. Otherwise, there is no good error
1813 * code, so just state that the flow table is full. */
1814 return (fm->hard_timeout || fm->idle_timeout
1815 ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT
1816 : OFPERR_OFPFMFC_TABLE_FULL);
1819 return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len,
1820 &fm->match.flow, max_port,
1821 fm->table_id, max_table, protocol);
1825 ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
1826 struct ofpbuf *bands)
1828 const struct ofp13_meter_band_header *ombh;
1829 struct ofputil_meter_band *mb;
1832 ombh = ofpbuf_try_pull(msg, len);
1834 return OFPERR_OFPBRC_BAD_LEN;
1837 while (len >= sizeof (struct ofp13_meter_band_drop)) {
1838 size_t ombh_len = ntohs(ombh->len);
1839 /* All supported band types have the same length. */
1840 if (ombh_len != sizeof (struct ofp13_meter_band_drop)) {
1841 return OFPERR_OFPBRC_BAD_LEN;
1843 mb = ofpbuf_put_uninit(bands, sizeof *mb);
1844 mb->type = ntohs(ombh->type);
1845 if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) {
1846 return OFPERR_OFPMMFC_BAD_BAND;
1848 mb->rate = ntohl(ombh->rate);
1849 mb->burst_size = ntohl(ombh->burst_size);
1850 mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ?
1851 ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0;
1854 ombh = ALIGNED_CAST(struct ofp13_meter_band_header *,
1855 (char *) ombh + ombh_len);
1858 return OFPERR_OFPBRC_BAD_LEN;
1865 ofputil_decode_meter_mod(const struct ofp_header *oh,
1866 struct ofputil_meter_mod *mm,
1867 struct ofpbuf *bands)
1869 const struct ofp13_meter_mod *omm;
1872 ofpbuf_use_const(&b, oh, ntohs(oh->length));
1873 ofpraw_pull_assert(&b);
1874 omm = ofpbuf_pull(&b, sizeof *omm);
1876 /* Translate the message. */
1877 mm->command = ntohs(omm->command);
1878 if (mm->command != OFPMC13_ADD &&
1879 mm->command != OFPMC13_MODIFY &&
1880 mm->command != OFPMC13_DELETE) {
1881 return OFPERR_OFPMMFC_BAD_COMMAND;
1883 mm->meter.meter_id = ntohl(omm->meter_id);
1885 if (mm->command == OFPMC13_DELETE) {
1886 mm->meter.flags = 0;
1887 mm->meter.n_bands = 0;
1888 mm->meter.bands = NULL;
1892 mm->meter.flags = ntohs(omm->flags);
1893 if (mm->meter.flags & OFPMF13_KBPS &&
1894 mm->meter.flags & OFPMF13_PKTPS) {
1895 return OFPERR_OFPMMFC_BAD_FLAGS;
1897 mm->meter.bands = ofpbuf_data(bands);
1899 error = ofputil_pull_bands(&b, ofpbuf_size(&b), &mm->meter.n_bands, bands);
1908 ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id)
1910 const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh);
1911 *meter_id = ntohl(omr->meter_id);
1915 ofputil_encode_meter_request(enum ofp_version ofp_version,
1916 enum ofputil_meter_request_type type,
1924 case OFPUTIL_METER_CONFIG:
1925 raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST;
1927 case OFPUTIL_METER_STATS:
1928 raw = OFPRAW_OFPST13_METER_REQUEST;
1931 case OFPUTIL_METER_FEATURES:
1932 raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST;
1936 msg = ofpraw_alloc(raw, ofp_version, 0);
1938 if (type != OFPUTIL_METER_FEATURES) {
1939 struct ofp13_meter_multipart_request *omr;
1940 omr = ofpbuf_put_zeros(msg, sizeof *omr);
1941 omr->meter_id = htonl(meter_id);
1947 ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb,
1952 for (n = 0; n < n_bands; ++n) {
1953 /* Currently all band types have same size. */
1954 struct ofp13_meter_band_dscp_remark *ombh;
1955 size_t ombh_len = sizeof *ombh;
1957 ombh = ofpbuf_put_zeros(msg, ombh_len);
1959 ombh->type = htons(mb->type);
1960 ombh->len = htons(ombh_len);
1961 ombh->rate = htonl(mb->rate);
1962 ombh->burst_size = htonl(mb->burst_size);
1963 ombh->prec_level = mb->prec_level;
1969 /* Encode a meter stat for 'mc' and append it to 'replies'. */
1971 ofputil_append_meter_config(struct list *replies,
1972 const struct ofputil_meter_config *mc)
1974 struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
1975 size_t start_ofs = ofpbuf_size(msg);
1976 struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply);
1977 reply->flags = htons(mc->flags);
1978 reply->meter_id = htonl(mc->meter_id);
1980 ofputil_put_bands(mc->n_bands, mc->bands, msg);
1982 reply->length = htons(ofpbuf_size(msg) - start_ofs);
1984 ofpmp_postappend(replies, start_ofs);
1987 /* Encode a meter stat for 'ms' and append it to 'replies'. */
1989 ofputil_append_meter_stats(struct list *replies,
1990 const struct ofputil_meter_stats *ms)
1992 struct ofp13_meter_stats *reply;
1996 len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats);
1997 reply = ofpmp_append(replies, len);
1999 reply->meter_id = htonl(ms->meter_id);
2000 reply->len = htons(len);
2001 memset(reply->pad, 0, sizeof reply->pad);
2002 reply->flow_count = htonl(ms->flow_count);
2003 reply->packet_in_count = htonll(ms->packet_in_count);
2004 reply->byte_in_count = htonll(ms->byte_in_count);
2005 reply->duration_sec = htonl(ms->duration_sec);
2006 reply->duration_nsec = htonl(ms->duration_nsec);
2008 for (n = 0; n < ms->n_bands; ++n) {
2009 const struct ofputil_meter_band_stats *src = &ms->bands[n];
2010 struct ofp13_meter_band_stats *dst = &reply->band_stats[n];
2012 dst->packet_band_count = htonll(src->packet_count);
2013 dst->byte_band_count = htonll(src->byte_count);
2017 /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract
2018 * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into
2019 * 'bands'. The caller must have initialized 'bands' and retains ownership of
2020 * it across the call.
2022 * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow
2023 * message. Calling this function multiple times for a single 'msg' iterates
2024 * through the replies. 'bands' is cleared for each reply.
2026 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2027 * otherwise a positive errno value. */
2029 ofputil_decode_meter_config(struct ofpbuf *msg,
2030 struct ofputil_meter_config *mc,
2031 struct ofpbuf *bands)
2033 const struct ofp13_meter_config *omc;
2036 /* Pull OpenFlow headers for the first call. */
2038 ofpraw_pull_assert(msg);
2041 if (!ofpbuf_size(msg)) {
2045 omc = ofpbuf_try_pull(msg, sizeof *omc);
2047 VLOG_WARN_RL(&bad_ofmsg_rl,
2048 "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end",
2050 return OFPERR_OFPBRC_BAD_LEN;
2053 ofpbuf_clear(bands);
2054 err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc,
2055 &mc->n_bands, bands);
2059 mc->meter_id = ntohl(omc->meter_id);
2060 mc->flags = ntohs(omc->flags);
2061 mc->bands = ofpbuf_data(bands);
2067 ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
2068 struct ofpbuf *bands)
2070 const struct ofp13_meter_band_stats *ombs;
2071 struct ofputil_meter_band_stats *mbs;
2074 ombs = ofpbuf_try_pull(msg, len);
2076 return OFPERR_OFPBRC_BAD_LEN;
2079 n = len / sizeof *ombs;
2080 if (len != n * sizeof *ombs) {
2081 return OFPERR_OFPBRC_BAD_LEN;
2084 mbs = ofpbuf_put_uninit(bands, len);
2086 for (i = 0; i < n; ++i) {
2087 mbs[i].packet_count = ntohll(ombs[i].packet_band_count);
2088 mbs[i].byte_count = ntohll(ombs[i].byte_band_count);
2094 /* Converts an OFPMP_METER reply in 'msg' into an abstract
2095 * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats
2096 * decoded into 'bands'.
2098 * Multiple OFPMP_METER replies can be packed into a single OpenFlow
2099 * message. Calling this function multiple times for a single 'msg' iterates
2100 * through the replies. 'bands' is cleared for each reply.
2102 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2103 * otherwise a positive errno value. */
2105 ofputil_decode_meter_stats(struct ofpbuf *msg,
2106 struct ofputil_meter_stats *ms,
2107 struct ofpbuf *bands)
2109 const struct ofp13_meter_stats *oms;
2112 /* Pull OpenFlow headers for the first call. */
2114 ofpraw_pull_assert(msg);
2117 if (!ofpbuf_size(msg)) {
2121 oms = ofpbuf_try_pull(msg, sizeof *oms);
2123 VLOG_WARN_RL(&bad_ofmsg_rl,
2124 "OFPMP_METER reply has %"PRIu32" leftover bytes at end",
2126 return OFPERR_OFPBRC_BAD_LEN;
2129 ofpbuf_clear(bands);
2130 err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms,
2131 &ms->n_bands, bands);
2135 ms->meter_id = ntohl(oms->meter_id);
2136 ms->flow_count = ntohl(oms->flow_count);
2137 ms->packet_in_count = ntohll(oms->packet_in_count);
2138 ms->byte_in_count = ntohll(oms->byte_in_count);
2139 ms->duration_sec = ntohl(oms->duration_sec);
2140 ms->duration_nsec = ntohl(oms->duration_nsec);
2141 ms->bands = ofpbuf_data(bands);
2147 ofputil_decode_meter_features(const struct ofp_header *oh,
2148 struct ofputil_meter_features *mf)
2150 const struct ofp13_meter_features *omf = ofpmsg_body(oh);
2152 mf->max_meters = ntohl(omf->max_meter);
2153 mf->band_types = ntohl(omf->band_types);
2154 mf->capabilities = ntohl(omf->capabilities);
2155 mf->max_bands = omf->max_bands;
2156 mf->max_color = omf->max_color;
2160 ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf,
2161 const struct ofp_header *request)
2163 struct ofpbuf *reply;
2164 struct ofp13_meter_features *omf;
2166 reply = ofpraw_alloc_stats_reply(request, 0);
2167 omf = ofpbuf_put_zeros(reply, sizeof *omf);
2169 omf->max_meter = htonl(mf->max_meters);
2170 omf->band_types = htonl(mf->band_types);
2171 omf->capabilities = htonl(mf->capabilities);
2172 omf->max_bands = mf->max_bands;
2173 omf->max_color = mf->max_color;
2179 ofputil_encode_meter_mod(enum ofp_version ofp_version,
2180 const struct ofputil_meter_mod *mm)
2184 struct ofp13_meter_mod *omm;
2186 msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version,
2187 NXM_TYPICAL_LEN + mm->meter.n_bands * 16);
2188 omm = ofpbuf_put_zeros(msg, sizeof *omm);
2189 omm->command = htons(mm->command);
2190 if (mm->command != OFPMC13_DELETE) {
2191 omm->flags = htons(mm->meter.flags);
2193 omm->meter_id = htonl(mm->meter.meter_id);
2195 ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg);
2197 ofpmsg_update_length(msg);
2202 ofputil_tid_command(const struct ofputil_flow_mod *fm,
2203 enum ofputil_protocol protocol)
2205 return htons(protocol & OFPUTIL_P_TID
2206 ? (fm->command & 0xff) | (fm->table_id << 8)
2210 /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
2211 * 'protocol' and returns the message. */
2213 ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
2214 enum ofputil_protocol protocol)
2216 enum ofp_version version = ofputil_protocol_to_ofp_version(protocol);
2217 ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version);
2221 case OFPUTIL_P_OF11_STD:
2222 case OFPUTIL_P_OF12_OXM:
2223 case OFPUTIL_P_OF13_OXM:
2224 case OFPUTIL_P_OF14_OXM:
2225 case OFPUTIL_P_OF15_OXM: {
2226 struct ofp11_flow_mod *ofm;
2229 tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len;
2230 msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom);
2231 ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
2232 if ((protocol == OFPUTIL_P_OF11_STD
2233 && (fm->command == OFPFC_MODIFY ||
2234 fm->command == OFPFC_MODIFY_STRICT)
2235 && fm->cookie_mask == htonll(0))
2236 || fm->command == OFPFC_ADD) {
2237 ofm->cookie = fm->new_cookie;
2239 ofm->cookie = fm->cookie & fm->cookie_mask;
2241 ofm->cookie_mask = fm->cookie_mask;
2242 if (fm->table_id != OFPTT_ALL
2243 || (protocol != OFPUTIL_P_OF11_STD
2244 && (fm->command == OFPFC_DELETE ||
2245 fm->command == OFPFC_DELETE_STRICT))) {
2246 ofm->table_id = fm->table_id;
2250 ofm->command = fm->command;
2251 ofm->idle_timeout = htons(fm->idle_timeout);
2252 ofm->hard_timeout = htons(fm->hard_timeout);
2253 ofm->priority = htons(fm->priority);
2254 ofm->buffer_id = htonl(fm->buffer_id);
2255 ofm->out_port = ofputil_port_to_ofp11(fm->out_port);
2256 ofm->out_group = htonl(fm->out_group);
2257 ofm->flags = raw_flags;
2258 if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) {
2259 ofm->importance = htons(fm->importance);
2261 ofm->importance = 0;
2263 ofputil_put_ofp11_match(msg, &fm->match, protocol);
2264 ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg,
2269 case OFPUTIL_P_OF10_STD:
2270 case OFPUTIL_P_OF10_STD_TID: {
2271 struct ofp10_flow_mod *ofm;
2273 msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION,
2275 ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
2276 ofputil_match_to_ofp10_match(&fm->match, &ofm->match);
2277 ofm->cookie = fm->new_cookie;
2278 ofm->command = ofputil_tid_command(fm, protocol);
2279 ofm->idle_timeout = htons(fm->idle_timeout);
2280 ofm->hard_timeout = htons(fm->hard_timeout);
2281 ofm->priority = htons(fm->priority);
2282 ofm->buffer_id = htonl(fm->buffer_id);
2283 ofm->out_port = htons(ofp_to_u16(fm->out_port));
2284 ofm->flags = raw_flags;
2285 ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
2290 case OFPUTIL_P_OF10_NXM:
2291 case OFPUTIL_P_OF10_NXM_TID: {
2292 struct nx_flow_mod *nfm;
2295 msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION,
2296 NXM_TYPICAL_LEN + fm->ofpacts_len);
2297 nfm = ofpbuf_put_zeros(msg, sizeof *nfm);
2298 nfm->command = ofputil_tid_command(fm, protocol);
2299 nfm->cookie = fm->new_cookie;
2300 match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask);
2301 nfm = ofpbuf_l3(msg);
2302 nfm->idle_timeout = htons(fm->idle_timeout);
2303 nfm->hard_timeout = htons(fm->hard_timeout);
2304 nfm->priority = htons(fm->priority);
2305 nfm->buffer_id = htonl(fm->buffer_id);
2306 nfm->out_port = htons(ofp_to_u16(fm->out_port));
2307 nfm->flags = raw_flags;
2308 nfm->match_len = htons(match_len);
2309 ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
2318 ofpmsg_update_length(msg);
2323 ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr,
2324 const struct ofp10_flow_stats_request *ofsr,
2327 fsr->aggregate = aggregate;
2328 ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match);
2329 fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port));
2330 fsr->out_group = OFPG11_ANY;
2331 fsr->table_id = ofsr->table_id;
2332 fsr->cookie = fsr->cookie_mask = htonll(0);
2338 ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr,
2339 struct ofpbuf *b, bool aggregate)
2341 const struct ofp11_flow_stats_request *ofsr;
2344 ofsr = ofpbuf_pull(b, sizeof *ofsr);
2345 fsr->aggregate = aggregate;
2346 fsr->table_id = ofsr->table_id;
2347 error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port);
2351 fsr->out_group = ntohl(ofsr->out_group);
2352 fsr->cookie = ofsr->cookie;
2353 fsr->cookie_mask = ofsr->cookie_mask;
2354 error = ofputil_pull_ofp11_match(b, &fsr->match, NULL);
2363 ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr,
2364 struct ofpbuf *b, bool aggregate)
2366 const struct nx_flow_stats_request *nfsr;
2369 nfsr = ofpbuf_pull(b, sizeof *nfsr);
2370 error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match,
2371 &fsr->cookie, &fsr->cookie_mask);
2375 if (ofpbuf_size(b)) {
2376 return OFPERR_OFPBRC_BAD_LEN;
2379 fsr->aggregate = aggregate;
2380 fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port));
2381 fsr->out_group = OFPG11_ANY;
2382 fsr->table_id = nfsr->table_id;
2387 /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified
2388 * 'port', suitable for OpenFlow version 'version'. */
2390 ofputil_encode_queue_get_config_request(enum ofp_version version,
2393 struct ofpbuf *request;
2395 if (version == OFP10_VERSION) {
2396 struct ofp10_queue_get_config_request *qgcr10;
2398 request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST,
2400 qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10);
2401 qgcr10->port = htons(ofp_to_u16(port));
2403 struct ofp11_queue_get_config_request *qgcr11;
2405 request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST,
2407 qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11);
2408 qgcr11->port = ofputil_port_to_ofp11(port);
2414 /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the
2415 * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error
2418 ofputil_decode_queue_get_config_request(const struct ofp_header *oh,
2421 const struct ofp10_queue_get_config_request *qgcr10;
2422 const struct ofp11_queue_get_config_request *qgcr11;
2426 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2427 raw = ofpraw_pull_assert(&b);
2429 switch ((int) raw) {
2430 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST:
2431 qgcr10 = ofpbuf_data(&b);
2432 *port = u16_to_ofp(ntohs(qgcr10->port));
2435 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST:
2436 qgcr11 = ofpbuf_data(&b);
2437 return ofputil_port_from_ofp11(qgcr11->port, port);
2443 /* Constructs and returns the beginning of a reply to
2444 * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about
2445 * individual queues with ofputil_append_queue_get_config_reply(). */
2447 ofputil_encode_queue_get_config_reply(const struct ofp_header *oh)
2449 struct ofp10_queue_get_config_reply *qgcr10;
2450 struct ofp11_queue_get_config_reply *qgcr11;
2451 struct ofpbuf *reply;
2457 error = ofputil_decode_queue_get_config_request(oh, &port);
2460 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2461 raw = ofpraw_pull_assert(&b);
2463 switch ((int) raw) {
2464 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST:
2465 reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY,
2467 qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10);
2468 qgcr10->port = htons(ofp_to_u16(port));
2471 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST:
2472 reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY,
2474 qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11);
2475 qgcr11->port = ofputil_port_to_ofp11(port);
2486 put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property,
2489 if (rate != UINT16_MAX) {
2490 struct ofp_queue_prop_rate *oqpr;
2492 oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr);
2493 oqpr->prop_header.property = htons(property);
2494 oqpr->prop_header.len = htons(sizeof *oqpr);
2495 oqpr->rate = htons(rate);
2499 /* Appends a queue description for 'queue_id' to the
2500 * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */
2502 ofputil_append_queue_get_config_reply(struct ofpbuf *reply,
2503 const struct ofputil_queue_config *oqc)
2505 const struct ofp_header *oh = ofpbuf_data(reply);
2506 size_t start_ofs, len_ofs;
2509 start_ofs = ofpbuf_size(reply);
2510 if (oh->version < OFP12_VERSION) {
2511 struct ofp10_packet_queue *opq10;
2513 opq10 = ofpbuf_put_zeros(reply, sizeof *opq10);
2514 opq10->queue_id = htonl(oqc->queue_id);
2515 len_ofs = (char *) &opq10->len - (char *) ofpbuf_data(reply);
2517 struct ofp11_queue_get_config_reply *qgcr11;
2518 struct ofp12_packet_queue *opq12;
2521 qgcr11 = ofpbuf_l3(reply);
2522 port = qgcr11->port;
2524 opq12 = ofpbuf_put_zeros(reply, sizeof *opq12);
2526 opq12->queue_id = htonl(oqc->queue_id);
2527 len_ofs = (char *) &opq12->len - (char *) ofpbuf_data(reply);
2530 put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate);
2531 put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate);
2533 len = ofpbuf_at(reply, len_ofs, sizeof *len);
2534 *len = htons(ofpbuf_size(reply) - start_ofs);
2537 /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and
2538 * stores in '*port' the port that the reply is about. The caller may call
2539 * ofputil_pull_queue_get_config_reply() to obtain information about individual
2540 * queues included in the reply. Returns 0 if successful, otherwise an
2543 ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port)
2545 const struct ofp10_queue_get_config_reply *qgcr10;
2546 const struct ofp11_queue_get_config_reply *qgcr11;
2549 raw = ofpraw_pull_assert(reply);
2550 switch ((int) raw) {
2551 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY:
2552 qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10);
2553 *port = u16_to_ofp(ntohs(qgcr10->port));
2556 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY:
2557 qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11);
2558 return ofputil_port_from_ofp11(qgcr11->port, port);
2565 parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate)
2567 const struct ofp_queue_prop_rate *oqpr;
2569 if (hdr->len == htons(sizeof *oqpr)) {
2570 oqpr = (const struct ofp_queue_prop_rate *) hdr;
2571 *rate = ntohs(oqpr->rate);
2574 return OFPERR_OFPBRC_BAD_LEN;
2578 /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in
2579 * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply()
2580 * must already have pulled off the main header.
2582 * This function returns EOF if the last queue has already been decoded, 0 if a
2583 * queue was successfully decoded into '*queue', or an ofperr if there was a
2584 * problem decoding 'reply'. */
2586 ofputil_pull_queue_get_config_reply(struct ofpbuf *reply,
2587 struct ofputil_queue_config *queue)
2589 const struct ofp_header *oh;
2590 unsigned int opq_len;
2593 if (!ofpbuf_size(reply)) {
2597 queue->min_rate = UINT16_MAX;
2598 queue->max_rate = UINT16_MAX;
2601 if (oh->version < OFP12_VERSION) {
2602 const struct ofp10_packet_queue *opq10;
2604 opq10 = ofpbuf_try_pull(reply, sizeof *opq10);
2606 return OFPERR_OFPBRC_BAD_LEN;
2608 queue->queue_id = ntohl(opq10->queue_id);
2609 len = ntohs(opq10->len);
2610 opq_len = sizeof *opq10;
2612 const struct ofp12_packet_queue *opq12;
2614 opq12 = ofpbuf_try_pull(reply, sizeof *opq12);
2616 return OFPERR_OFPBRC_BAD_LEN;
2618 queue->queue_id = ntohl(opq12->queue_id);
2619 len = ntohs(opq12->len);
2620 opq_len = sizeof *opq12;
2623 if (len < opq_len || len > ofpbuf_size(reply) + opq_len || len % 8) {
2624 return OFPERR_OFPBRC_BAD_LEN;
2629 const struct ofp_queue_prop_header *hdr;
2630 unsigned int property;
2631 unsigned int prop_len;
2632 enum ofperr error = 0;
2634 hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr);
2635 prop_len = ntohs(hdr->len);
2636 if (prop_len < sizeof *hdr || prop_len > ofpbuf_size(reply) || prop_len % 8) {
2637 return OFPERR_OFPBRC_BAD_LEN;
2640 property = ntohs(hdr->property);
2642 case OFPQT_MIN_RATE:
2643 error = parse_queue_rate(hdr, &queue->min_rate);
2646 case OFPQT_MAX_RATE:
2647 error = parse_queue_rate(hdr, &queue->max_rate);
2651 VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property);
2658 ofpbuf_pull(reply, prop_len);
2664 /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
2665 * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
2666 * successful, otherwise an OpenFlow error code. */
2668 ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr,
2669 const struct ofp_header *oh)
2674 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2675 raw = ofpraw_pull_assert(&b);
2676 switch ((int) raw) {
2677 case OFPRAW_OFPST10_FLOW_REQUEST:
2678 return ofputil_decode_ofpst10_flow_request(fsr, ofpbuf_data(&b), false);
2680 case OFPRAW_OFPST10_AGGREGATE_REQUEST:
2681 return ofputil_decode_ofpst10_flow_request(fsr, ofpbuf_data(&b), true);
2683 case OFPRAW_OFPST11_FLOW_REQUEST:
2684 return ofputil_decode_ofpst11_flow_request(fsr, &b, false);
2686 case OFPRAW_OFPST11_AGGREGATE_REQUEST:
2687 return ofputil_decode_ofpst11_flow_request(fsr, &b, true);
2689 case OFPRAW_NXST_FLOW_REQUEST:
2690 return ofputil_decode_nxst_flow_request(fsr, &b, false);
2692 case OFPRAW_NXST_AGGREGATE_REQUEST:
2693 return ofputil_decode_nxst_flow_request(fsr, &b, true);
2696 /* Hey, the caller lied. */
2701 /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW,
2702 * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to
2703 * 'protocol', and returns the message. */
2705 ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr,
2706 enum ofputil_protocol protocol)
2712 case OFPUTIL_P_OF11_STD:
2713 case OFPUTIL_P_OF12_OXM:
2714 case OFPUTIL_P_OF13_OXM:
2715 case OFPUTIL_P_OF14_OXM:
2716 case OFPUTIL_P_OF15_OXM: {
2717 struct ofp11_flow_stats_request *ofsr;
2719 raw = (fsr->aggregate
2720 ? OFPRAW_OFPST11_AGGREGATE_REQUEST
2721 : OFPRAW_OFPST11_FLOW_REQUEST);
2722 msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol),
2723 ofputil_match_typical_len(protocol));
2724 ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
2725 ofsr->table_id = fsr->table_id;
2726 ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port);
2727 ofsr->out_group = htonl(fsr->out_group);
2728 ofsr->cookie = fsr->cookie;
2729 ofsr->cookie_mask = fsr->cookie_mask;
2730 ofputil_put_ofp11_match(msg, &fsr->match, protocol);
2734 case OFPUTIL_P_OF10_STD:
2735 case OFPUTIL_P_OF10_STD_TID: {
2736 struct ofp10_flow_stats_request *ofsr;
2738 raw = (fsr->aggregate
2739 ? OFPRAW_OFPST10_AGGREGATE_REQUEST
2740 : OFPRAW_OFPST10_FLOW_REQUEST);
2741 msg = ofpraw_alloc(raw, OFP10_VERSION, 0);
2742 ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
2743 ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match);
2744 ofsr->table_id = fsr->table_id;
2745 ofsr->out_port = htons(ofp_to_u16(fsr->out_port));
2749 case OFPUTIL_P_OF10_NXM:
2750 case OFPUTIL_P_OF10_NXM_TID: {
2751 struct nx_flow_stats_request *nfsr;
2754 raw = (fsr->aggregate
2755 ? OFPRAW_NXST_AGGREGATE_REQUEST
2756 : OFPRAW_NXST_FLOW_REQUEST);
2757 msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN);
2758 ofpbuf_put_zeros(msg, sizeof *nfsr);
2759 match_len = nx_put_match(msg, &fsr->match,
2760 fsr->cookie, fsr->cookie_mask);
2762 nfsr = ofpbuf_l3(msg);
2763 nfsr->out_port = htons(ofp_to_u16(fsr->out_port));
2764 nfsr->match_len = htons(match_len);
2765 nfsr->table_id = fsr->table_id;
2776 /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
2777 * ofputil_flow_stats in 'fs'.
2779 * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
2780 * OpenFlow message. Calling this function multiple times for a single 'msg'
2781 * iterates through the replies. The caller must initially leave 'msg''s layer
2782 * pointers null and not modify them between calls.
2784 * Most switches don't send the values needed to populate fs->idle_age and
2785 * fs->hard_age, so those members will usually be set to 0. If the switch from
2786 * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass
2787 * 'flow_age_extension' as true so that the contents of 'msg' determine the
2788 * 'idle_age' and 'hard_age' members in 'fs'.
2790 * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats
2791 * reply's actions. The caller must initialize 'ofpacts' and retains ownership
2792 * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer.
2794 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2795 * otherwise a positive errno value. */
2797 ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
2799 bool flow_age_extension,
2800 struct ofpbuf *ofpacts)
2802 const struct ofp_header *oh;
2803 size_t instructions_len;
2808 ? ofpraw_decode(&raw, msg->frame)
2809 : ofpraw_pull(&raw, msg));
2815 if (!ofpbuf_size(msg)) {
2817 } else if (raw == OFPRAW_OFPST11_FLOW_REPLY
2818 || raw == OFPRAW_OFPST13_FLOW_REPLY) {
2819 const struct ofp11_flow_stats *ofs;
2821 uint16_t padded_match_len;
2823 ofs = ofpbuf_try_pull(msg, sizeof *ofs);
2825 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover "
2826 "bytes at end", ofpbuf_size(msg));
2830 length = ntohs(ofs->length);
2831 if (length < sizeof *ofs) {
2832 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
2833 "length %"PRIuSIZE, length);
2837 if (ofputil_pull_ofp11_match(msg, &fs->match, &padded_match_len)) {
2838 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad match");
2841 instructions_len = length - sizeof *ofs - padded_match_len;
2843 fs->priority = ntohs(ofs->priority);
2844 fs->table_id = ofs->table_id;
2845 fs->duration_sec = ntohl(ofs->duration_sec);
2846 fs->duration_nsec = ntohl(ofs->duration_nsec);
2847 fs->idle_timeout = ntohs(ofs->idle_timeout);
2848 fs->hard_timeout = ntohs(ofs->hard_timeout);
2849 if (oh->version >= OFP14_VERSION) {
2850 fs->importance = ntohs(ofs->importance);
2854 if (raw == OFPRAW_OFPST13_FLOW_REPLY) {
2855 error = ofputil_decode_flow_mod_flags(ofs->flags, -1, oh->version,
2865 fs->cookie = ofs->cookie;
2866 fs->packet_count = ntohll(ofs->packet_count);
2867 fs->byte_count = ntohll(ofs->byte_count);
2868 } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) {
2869 const struct ofp10_flow_stats *ofs;
2872 ofs = ofpbuf_try_pull(msg, sizeof *ofs);
2874 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply has %"PRIu32" leftover "
2875 "bytes at end", ofpbuf_size(msg));
2879 length = ntohs(ofs->length);
2880 if (length < sizeof *ofs) {
2881 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply claims invalid "
2882 "length %"PRIuSIZE, length);
2885 instructions_len = length - sizeof *ofs;
2887 fs->cookie = get_32aligned_be64(&ofs->cookie);
2888 ofputil_match_from_ofp10_match(&ofs->match, &fs->match);
2889 fs->priority = ntohs(ofs->priority);
2890 fs->table_id = ofs->table_id;
2891 fs->duration_sec = ntohl(ofs->duration_sec);
2892 fs->duration_nsec = ntohl(ofs->duration_nsec);
2893 fs->idle_timeout = ntohs(ofs->idle_timeout);
2894 fs->hard_timeout = ntohs(ofs->hard_timeout);
2898 fs->packet_count = ntohll(get_32aligned_be64(&ofs->packet_count));
2899 fs->byte_count = ntohll(get_32aligned_be64(&ofs->byte_count));
2901 } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
2902 const struct nx_flow_stats *nfs;
2903 size_t match_len, length;
2905 nfs = ofpbuf_try_pull(msg, sizeof *nfs);
2907 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply has %"PRIu32" leftover "
2908 "bytes at end", ofpbuf_size(msg));
2912 length = ntohs(nfs->length);
2913 match_len = ntohs(nfs->match_len);
2914 if (length < sizeof *nfs + ROUND_UP(match_len, 8)) {
2915 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW reply with match_len=%"PRIuSIZE" "
2916 "claims invalid length %"PRIuSIZE, match_len, length);
2919 if (nx_pull_match(msg, match_len, &fs->match, NULL, NULL)) {
2922 instructions_len = length - sizeof *nfs - ROUND_UP(match_len, 8);
2924 fs->cookie = nfs->cookie;
2925 fs->table_id = nfs->table_id;
2926 fs->duration_sec = ntohl(nfs->duration_sec);
2927 fs->duration_nsec = ntohl(nfs->duration_nsec);
2928 fs->priority = ntohs(nfs->priority);
2929 fs->idle_timeout = ntohs(nfs->idle_timeout);
2930 fs->hard_timeout = ntohs(nfs->hard_timeout);
2934 if (flow_age_extension) {
2935 if (nfs->idle_age) {
2936 fs->idle_age = ntohs(nfs->idle_age) - 1;
2938 if (nfs->hard_age) {
2939 fs->hard_age = ntohs(nfs->hard_age) - 1;
2942 fs->packet_count = ntohll(nfs->packet_count);
2943 fs->byte_count = ntohll(nfs->byte_count);
2949 if (ofpacts_pull_openflow_instructions(msg, instructions_len, oh->version,
2951 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_FLOW reply bad instructions");
2954 fs->ofpacts = ofpbuf_data(ofpacts);
2955 fs->ofpacts_len = ofpbuf_size(ofpacts);
2960 /* Returns 'count' unchanged except that UINT64_MAX becomes 0.
2962 * We use this in situations where OVS internally uses UINT64_MAX to mean
2963 * "value unknown" but OpenFlow 1.0 does not define any unknown value. */
2965 unknown_to_zero(uint64_t count)
2967 return count != UINT64_MAX ? count : 0;
2970 /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to
2971 * those already present in the list of ofpbufs in 'replies'. 'replies' should
2972 * have been initialized with ofpmp_init(). */
2974 ofputil_append_flow_stats_reply(const struct ofputil_flow_stats *fs,
2975 struct list *replies)
2977 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
2978 size_t start_ofs = ofpbuf_size(reply);
2979 enum ofp_version version = ofpmp_version(replies);
2980 enum ofpraw raw = ofpmp_decode_raw(replies);
2982 if (raw == OFPRAW_OFPST11_FLOW_REPLY || raw == OFPRAW_OFPST13_FLOW_REPLY) {
2983 struct ofp11_flow_stats *ofs;
2985 ofpbuf_put_uninit(reply, sizeof *ofs);
2986 oxm_put_match(reply, &fs->match, version);
2987 ofpacts_put_openflow_instructions(fs->ofpacts, fs->ofpacts_len, reply,
2990 ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
2991 ofs->length = htons(ofpbuf_size(reply) - start_ofs);
2992 ofs->table_id = fs->table_id;
2994 ofs->duration_sec = htonl(fs->duration_sec);
2995 ofs->duration_nsec = htonl(fs->duration_nsec);
2996 ofs->priority = htons(fs->priority);
2997 ofs->idle_timeout = htons(fs->idle_timeout);
2998 ofs->hard_timeout = htons(fs->hard_timeout);
2999 if (version >= OFP14_VERSION) {
3000 ofs->importance = htons(fs->importance);
3002 ofs->importance = 0;
3004 if (raw == OFPRAW_OFPST13_FLOW_REPLY) {
3005 ofs->flags = ofputil_encode_flow_mod_flags(fs->flags, version);
3009 memset(ofs->pad2, 0, sizeof ofs->pad2);
3010 ofs->cookie = fs->cookie;
3011 ofs->packet_count = htonll(unknown_to_zero(fs->packet_count));
3012 ofs->byte_count = htonll(unknown_to_zero(fs->byte_count));
3013 } else if (raw == OFPRAW_OFPST10_FLOW_REPLY) {
3014 struct ofp10_flow_stats *ofs;
3016 ofpbuf_put_uninit(reply, sizeof *ofs);
3017 ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply,
3019 ofs = ofpbuf_at_assert(reply, start_ofs, sizeof *ofs);
3020 ofs->length = htons(ofpbuf_size(reply) - start_ofs);
3021 ofs->table_id = fs->table_id;
3023 ofputil_match_to_ofp10_match(&fs->match, &ofs->match);
3024 ofs->duration_sec = htonl(fs->duration_sec);
3025 ofs->duration_nsec = htonl(fs->duration_nsec);
3026 ofs->priority = htons(fs->priority);
3027 ofs->idle_timeout = htons(fs->idle_timeout);
3028 ofs->hard_timeout = htons(fs->hard_timeout);
3029 memset(ofs->pad2, 0, sizeof ofs->pad2);
3030 put_32aligned_be64(&ofs->cookie, fs->cookie);
3031 put_32aligned_be64(&ofs->packet_count,
3032 htonll(unknown_to_zero(fs->packet_count)));
3033 put_32aligned_be64(&ofs->byte_count,
3034 htonll(unknown_to_zero(fs->byte_count)));
3035 } else if (raw == OFPRAW_NXST_FLOW_REPLY) {
3036 struct nx_flow_stats *nfs;
3039 ofpbuf_put_uninit(reply, sizeof *nfs);
3040 match_len = nx_put_match(reply, &fs->match, 0, 0);
3041 ofpacts_put_openflow_actions(fs->ofpacts, fs->ofpacts_len, reply,
3043 nfs = ofpbuf_at_assert(reply, start_ofs, sizeof *nfs);
3044 nfs->length = htons(ofpbuf_size(reply) - start_ofs);
3045 nfs->table_id = fs->table_id;
3047 nfs->duration_sec = htonl(fs->duration_sec);
3048 nfs->duration_nsec = htonl(fs->duration_nsec);
3049 nfs->priority = htons(fs->priority);
3050 nfs->idle_timeout = htons(fs->idle_timeout);
3051 nfs->hard_timeout = htons(fs->hard_timeout);
3052 nfs->idle_age = htons(fs->idle_age < 0 ? 0
3053 : fs->idle_age < UINT16_MAX ? fs->idle_age + 1
3055 nfs->hard_age = htons(fs->hard_age < 0 ? 0
3056 : fs->hard_age < UINT16_MAX ? fs->hard_age + 1
3058 nfs->match_len = htons(match_len);
3059 nfs->cookie = fs->cookie;
3060 nfs->packet_count = htonll(fs->packet_count);
3061 nfs->byte_count = htonll(fs->byte_count);
3066 ofpmp_postappend(replies, start_ofs);
3069 /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or
3070 * NXST_AGGREGATE reply matching 'request', and returns the message. */
3072 ofputil_encode_aggregate_stats_reply(
3073 const struct ofputil_aggregate_stats *stats,
3074 const struct ofp_header *request)
3076 struct ofp_aggregate_stats_reply *asr;
3077 uint64_t packet_count;
3078 uint64_t byte_count;
3082 ofpraw_decode(&raw, request);
3083 if (raw == OFPRAW_OFPST10_AGGREGATE_REQUEST) {
3084 packet_count = unknown_to_zero(stats->packet_count);
3085 byte_count = unknown_to_zero(stats->byte_count);
3087 packet_count = stats->packet_count;
3088 byte_count = stats->byte_count;
3091 msg = ofpraw_alloc_stats_reply(request, 0);
3092 asr = ofpbuf_put_zeros(msg, sizeof *asr);
3093 put_32aligned_be64(&asr->packet_count, htonll(packet_count));
3094 put_32aligned_be64(&asr->byte_count, htonll(byte_count));
3095 asr->flow_count = htonl(stats->flow_count);
3101 ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats *stats,
3102 const struct ofp_header *reply)
3104 struct ofp_aggregate_stats_reply *asr;
3107 ofpbuf_use_const(&msg, reply, ntohs(reply->length));
3108 ofpraw_pull_assert(&msg);
3110 asr = ofpbuf_l3(&msg);
3111 stats->packet_count = ntohll(get_32aligned_be64(&asr->packet_count));
3112 stats->byte_count = ntohll(get_32aligned_be64(&asr->byte_count));
3113 stats->flow_count = ntohl(asr->flow_count);
3118 /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
3119 * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
3120 * an OpenFlow error code. */
3122 ofputil_decode_flow_removed(struct ofputil_flow_removed *fr,
3123 const struct ofp_header *oh)
3128 ofpbuf_use_const(&b, oh, ntohs(oh->length));
3129 raw = ofpraw_pull_assert(&b);
3130 if (raw == OFPRAW_OFPT11_FLOW_REMOVED) {
3131 const struct ofp12_flow_removed *ofr;
3134 ofr = ofpbuf_pull(&b, sizeof *ofr);
3136 error = ofputil_pull_ofp11_match(&b, &fr->match, NULL);
3141 fr->priority = ntohs(ofr->priority);
3142 fr->cookie = ofr->cookie;
3143 fr->reason = ofr->reason;
3144 fr->table_id = ofr->table_id;
3145 fr->duration_sec = ntohl(ofr->duration_sec);
3146 fr->duration_nsec = ntohl(ofr->duration_nsec);
3147 fr->idle_timeout = ntohs(ofr->idle_timeout);
3148 fr->hard_timeout = ntohs(ofr->hard_timeout);
3149 fr->packet_count = ntohll(ofr->packet_count);
3150 fr->byte_count = ntohll(ofr->byte_count);
3151 } else if (raw == OFPRAW_OFPT10_FLOW_REMOVED) {
3152 const struct ofp10_flow_removed *ofr;
3154 ofr = ofpbuf_pull(&b, sizeof *ofr);
3156 ofputil_match_from_ofp10_match(&ofr->match, &fr->match);
3157 fr->priority = ntohs(ofr->priority);
3158 fr->cookie = ofr->cookie;
3159 fr->reason = ofr->reason;
3161 fr->duration_sec = ntohl(ofr->duration_sec);
3162 fr->duration_nsec = ntohl(ofr->duration_nsec);
3163 fr->idle_timeout = ntohs(ofr->idle_timeout);
3164 fr->hard_timeout = 0;
3165 fr->packet_count = ntohll(ofr->packet_count);
3166 fr->byte_count = ntohll(ofr->byte_count);
3167 } else if (raw == OFPRAW_NXT_FLOW_REMOVED) {
3168 struct nx_flow_removed *nfr;
3171 nfr = ofpbuf_pull(&b, sizeof *nfr);
3172 error = nx_pull_match(&b, ntohs(nfr->match_len), &fr->match,
3177 if (ofpbuf_size(&b)) {
3178 return OFPERR_OFPBRC_BAD_LEN;
3181 fr->priority = ntohs(nfr->priority);
3182 fr->cookie = nfr->cookie;
3183 fr->reason = nfr->reason;
3184 fr->table_id = nfr->table_id ? nfr->table_id - 1 : 255;
3185 fr->duration_sec = ntohl(nfr->duration_sec);
3186 fr->duration_nsec = ntohl(nfr->duration_nsec);
3187 fr->idle_timeout = ntohs(nfr->idle_timeout);
3188 fr->hard_timeout = 0;
3189 fr->packet_count = ntohll(nfr->packet_count);
3190 fr->byte_count = ntohll(nfr->byte_count);
3198 /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or
3199 * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the
3202 ofputil_encode_flow_removed(const struct ofputil_flow_removed *fr,
3203 enum ofputil_protocol protocol)
3206 enum ofp_flow_removed_reason reason = fr->reason;
3208 if (reason == OFPRR_METER_DELETE && !(protocol & OFPUTIL_P_OF14_UP)) {
3209 reason = OFPRR_DELETE;
3213 case OFPUTIL_P_OF11_STD:
3214 case OFPUTIL_P_OF12_OXM:
3215 case OFPUTIL_P_OF13_OXM:
3216 case OFPUTIL_P_OF14_OXM:
3217 case OFPUTIL_P_OF15_OXM: {
3218 struct ofp12_flow_removed *ofr;
3220 msg = ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED,
3221 ofputil_protocol_to_ofp_version(protocol),
3223 ofputil_match_typical_len(protocol));
3224 ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
3225 ofr->cookie = fr->cookie;
3226 ofr->priority = htons(fr->priority);
3227 ofr->reason = reason;
3228 ofr->table_id = fr->table_id;
3229 ofr->duration_sec = htonl(fr->duration_sec);
3230 ofr->duration_nsec = htonl(fr->duration_nsec);
3231 ofr->idle_timeout = htons(fr->idle_timeout);
3232 ofr->hard_timeout = htons(fr->hard_timeout);
3233 ofr->packet_count = htonll(fr->packet_count);
3234 ofr->byte_count = htonll(fr->byte_count);
3235 ofputil_put_ofp11_match(msg, &fr->match, protocol);
3239 case OFPUTIL_P_OF10_STD:
3240 case OFPUTIL_P_OF10_STD_TID: {
3241 struct ofp10_flow_removed *ofr;
3243 msg = ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED, OFP10_VERSION,
3245 ofr = ofpbuf_put_zeros(msg, sizeof *ofr);
3246 ofputil_match_to_ofp10_match(&fr->match, &ofr->match);
3247 ofr->cookie = fr->cookie;
3248 ofr->priority = htons(fr->priority);
3249 ofr->reason = reason;
3250 ofr->duration_sec = htonl(fr->duration_sec);
3251 ofr->duration_nsec = htonl(fr->duration_nsec);
3252 ofr->idle_timeout = htons(fr->idle_timeout);
3253 ofr->packet_count = htonll(unknown_to_zero(fr->packet_count));
3254 ofr->byte_count = htonll(unknown_to_zero(fr->byte_count));
3258 case OFPUTIL_P_OF10_NXM:
3259 case OFPUTIL_P_OF10_NXM_TID: {
3260 struct nx_flow_removed *nfr;
3263 msg = ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED, OFP10_VERSION,
3264 htonl(0), NXM_TYPICAL_LEN);
3265 ofpbuf_put_zeros(msg, sizeof *nfr);
3266 match_len = nx_put_match(msg, &fr->match, 0, 0);
3268 nfr = ofpbuf_l3(msg);
3269 nfr->cookie = fr->cookie;
3270 nfr->priority = htons(fr->priority);
3271 nfr->reason = reason;
3272 nfr->table_id = fr->table_id + 1;
3273 nfr->duration_sec = htonl(fr->duration_sec);
3274 nfr->duration_nsec = htonl(fr->duration_nsec);
3275 nfr->idle_timeout = htons(fr->idle_timeout);
3276 nfr->match_len = htons(match_len);
3277 nfr->packet_count = htonll(fr->packet_count);
3278 nfr->byte_count = htonll(fr->byte_count);
3290 ofputil_decode_packet_in_finish(struct ofputil_packet_in *pin,
3291 struct match *match, struct ofpbuf *b)
3293 pin->packet = ofpbuf_data(b);
3294 pin->packet_len = ofpbuf_size(b);
3296 pin->fmd.in_port = match->flow.in_port.ofp_port;
3297 pin->fmd.tun_id = match->flow.tunnel.tun_id;
3298 pin->fmd.tun_src = match->flow.tunnel.ip_src;
3299 pin->fmd.tun_dst = match->flow.tunnel.ip_dst;
3300 pin->fmd.metadata = match->flow.metadata;
3301 memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs);
3302 pin->fmd.pkt_mark = match->flow.pkt_mark;
3306 ofputil_decode_packet_in(struct ofputil_packet_in *pin,
3307 const struct ofp_header *oh)
3312 memset(pin, 0, sizeof *pin);
3313 pin->cookie = OVS_BE64_MAX;
3315 ofpbuf_use_const(&b, oh, ntohs(oh->length));
3316 raw = ofpraw_pull_assert(&b);
3317 if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) {
3318 const struct ofp13_packet_in *opi;
3321 size_t packet_in_size;
3323 if (raw == OFPRAW_OFPT12_PACKET_IN) {
3324 packet_in_size = sizeof (struct ofp12_packet_in);
3326 packet_in_size = sizeof (struct ofp13_packet_in);
3329 opi = ofpbuf_pull(&b, packet_in_size);
3330 error = oxm_pull_match_loose(&b, &match);
3335 if (!ofpbuf_try_pull(&b, 2)) {
3336 return OFPERR_OFPBRC_BAD_LEN;
3339 pin->reason = opi->pi.reason;
3340 pin->table_id = opi->pi.table_id;
3341 pin->buffer_id = ntohl(opi->pi.buffer_id);
3342 pin->total_len = ntohs(opi->pi.total_len);
3344 if (raw == OFPRAW_OFPT13_PACKET_IN) {
3345 pin->cookie = opi->cookie;
3348 ofputil_decode_packet_in_finish(pin, &match, &b);
3349 } else if (raw == OFPRAW_OFPT10_PACKET_IN) {
3350 const struct ofp10_packet_in *opi;
3352 opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data));
3354 pin->packet = opi->data;
3355 pin->packet_len = ofpbuf_size(&b);
3357 pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port));
3358 pin->reason = opi->reason;
3359 pin->buffer_id = ntohl(opi->buffer_id);
3360 pin->total_len = ntohs(opi->total_len);
3361 } else if (raw == OFPRAW_OFPT11_PACKET_IN) {
3362 const struct ofp11_packet_in *opi;
3365 opi = ofpbuf_pull(&b, sizeof *opi);
3367 pin->packet = ofpbuf_data(&b);
3368 pin->packet_len = ofpbuf_size(&b);
3370 pin->buffer_id = ntohl(opi->buffer_id);
3371 error = ofputil_port_from_ofp11(opi->in_port, &pin->fmd.in_port);
3375 pin->total_len = ntohs(opi->total_len);
3376 pin->reason = opi->reason;
3377 pin->table_id = opi->table_id;
3378 } else if (raw == OFPRAW_NXT_PACKET_IN) {
3379 const struct nx_packet_in *npi;
3383 npi = ofpbuf_pull(&b, sizeof *npi);
3384 error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL,
3390 if (!ofpbuf_try_pull(&b, 2)) {
3391 return OFPERR_OFPBRC_BAD_LEN;
3394 pin->reason = npi->reason;
3395 pin->table_id = npi->table_id;
3396 pin->cookie = npi->cookie;
3398 pin->buffer_id = ntohl(npi->buffer_id);
3399 pin->total_len = ntohs(npi->total_len);
3401 ofputil_decode_packet_in_finish(pin, &match, &b);
3410 ofputil_packet_in_to_match(const struct ofputil_packet_in *pin,
3411 struct match *match)
3415 match_init_catchall(match);
3416 if (pin->fmd.tun_id != htonll(0)) {
3417 match_set_tun_id(match, pin->fmd.tun_id);
3419 if (pin->fmd.tun_src != htonl(0)) {
3420 match_set_tun_src(match, pin->fmd.tun_src);
3422 if (pin->fmd.tun_dst != htonl(0)) {
3423 match_set_tun_dst(match, pin->fmd.tun_dst);
3425 if (pin->fmd.metadata != htonll(0)) {
3426 match_set_metadata(match, pin->fmd.metadata);
3429 for (i = 0; i < FLOW_N_REGS; i++) {
3430 if (pin->fmd.regs[i]) {
3431 match_set_reg(match, i, pin->fmd.regs[i]);
3435 if (pin->fmd.pkt_mark != 0) {
3436 match_set_pkt_mark(match, pin->fmd.pkt_mark);
3439 match_set_in_port(match, pin->fmd.in_port);
3442 static struct ofpbuf *
3443 ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin)
3445 struct ofp10_packet_in *opi;
3446 struct ofpbuf *packet;
3448 packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
3449 htonl(0), pin->packet_len);
3450 opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data));
3451 opi->total_len = htons(pin->total_len);
3452 opi->in_port = htons(ofp_to_u16(pin->fmd.in_port));
3453 opi->reason = pin->reason;
3454 opi->buffer_id = htonl(pin->buffer_id);
3456 ofpbuf_put(packet, pin->packet, pin->packet_len);
3461 static struct ofpbuf *
3462 ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin)
3464 struct nx_packet_in *npi;
3465 struct ofpbuf *packet;
3469 ofputil_packet_in_to_match(pin, &match);
3471 /* The final argument is just an estimate of the space required. */
3472 packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
3473 htonl(0), (sizeof(struct flow_metadata) * 2
3474 + 2 + pin->packet_len));
3475 ofpbuf_put_zeros(packet, sizeof *npi);
3476 match_len = nx_put_match(packet, &match, 0, 0);
3477 ofpbuf_put_zeros(packet, 2);
3478 ofpbuf_put(packet, pin->packet, pin->packet_len);
3480 npi = ofpbuf_l3(packet);
3481 npi->buffer_id = htonl(pin->buffer_id);
3482 npi->total_len = htons(pin->total_len);
3483 npi->reason = pin->reason;
3484 npi->table_id = pin->table_id;
3485 npi->cookie = pin->cookie;
3486 npi->match_len = htons(match_len);
3491 static struct ofpbuf *
3492 ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin)
3494 struct ofp11_packet_in *opi;
3495 struct ofpbuf *packet;
3497 packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION,
3498 htonl(0), pin->packet_len);
3499 opi = ofpbuf_put_zeros(packet, sizeof *opi);
3500 opi->buffer_id = htonl(pin->buffer_id);
3501 opi->in_port = ofputil_port_to_ofp11(pin->fmd.in_port);
3502 opi->in_phy_port = opi->in_port;
3503 opi->total_len = htons(pin->total_len);
3504 opi->reason = pin->reason;
3505 opi->table_id = pin->table_id;
3507 ofpbuf_put(packet, pin->packet, pin->packet_len);
3512 static struct ofpbuf *
3513 ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin,
3514 enum ofputil_protocol protocol)
3516 struct ofp13_packet_in *opi;
3518 enum ofpraw packet_in_raw;
3519 enum ofp_version packet_in_version;
3520 size_t packet_in_size;
3521 struct ofpbuf *packet;
3523 if (protocol == OFPUTIL_P_OF12_OXM) {
3524 packet_in_raw = OFPRAW_OFPT12_PACKET_IN;
3525 packet_in_version = OFP12_VERSION;
3526 packet_in_size = sizeof (struct ofp12_packet_in);
3528 packet_in_raw = OFPRAW_OFPT13_PACKET_IN;
3529 packet_in_version = OFP13_VERSION;
3530 packet_in_size = sizeof (struct ofp13_packet_in);
3533 ofputil_packet_in_to_match(pin, &match);
3535 /* The final argument is just an estimate of the space required. */
3536 packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version,
3537 htonl(0), (sizeof(struct flow_metadata) * 2
3538 + 2 + pin->packet_len));
3539 ofpbuf_put_zeros(packet, packet_in_size);
3540 oxm_put_match(packet, &match, ofputil_protocol_to_ofp_version(protocol));
3541 ofpbuf_put_zeros(packet, 2);
3542 ofpbuf_put(packet, pin->packet, pin->packet_len);
3544 opi = ofpbuf_l3(packet);
3545 opi->pi.buffer_id = htonl(pin->buffer_id);
3546 opi->pi.total_len = htons(pin->total_len);
3547 opi->pi.reason = pin->reason;
3548 opi->pi.table_id = pin->table_id;
3549 if (protocol == OFPUTIL_P_OF13_OXM) {
3550 opi->cookie = pin->cookie;
3556 /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
3557 * in the format specified by 'packet_in_format'. */
3559 ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
3560 enum ofputil_protocol protocol,
3561 enum nx_packet_in_format packet_in_format)
3563 struct ofpbuf *packet;
3566 case OFPUTIL_P_OF10_STD:
3567 case OFPUTIL_P_OF10_STD_TID:
3568 case OFPUTIL_P_OF10_NXM:
3569 case OFPUTIL_P_OF10_NXM_TID:
3570 packet = (packet_in_format == NXPIF_NXM
3571 ? ofputil_encode_nx_packet_in(pin)
3572 : ofputil_encode_ofp10_packet_in(pin));
3575 case OFPUTIL_P_OF11_STD:
3576 packet = ofputil_encode_ofp11_packet_in(pin);
3579 case OFPUTIL_P_OF12_OXM:
3580 case OFPUTIL_P_OF13_OXM:
3581 case OFPUTIL_P_OF14_OXM:
3582 case OFPUTIL_P_OF15_OXM:
3583 packet = ofputil_encode_ofp12_packet_in(pin, protocol);
3590 ofpmsg_update_length(packet);
3594 /* Returns a string form of 'reason'. The return value is either a statically
3595 * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'.
3596 * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */
3598 ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason,
3599 char *reasonbuf, size_t bufsize)
3606 case OFPR_INVALID_TTL:
3607 return "invalid_ttl";
3609 case OFPR_N_REASONS:
3611 snprintf(reasonbuf, bufsize, "%d", (int) reason);
3617 ofputil_packet_in_reason_from_string(const char *s,
3618 enum ofp_packet_in_reason *reason)
3622 for (i = 0; i < OFPR_N_REASONS; i++) {
3623 char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE];
3624 const char *reason_s;
3626 reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf,
3628 if (!strcasecmp(s, reason_s)) {
3636 /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in
3639 * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out
3640 * message's actions. The caller must initialize 'ofpacts' and retains
3641 * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer.
3643 * Returns 0 if successful, otherwise an OFPERR_* value. */
3645 ofputil_decode_packet_out(struct ofputil_packet_out *po,
3646 const struct ofp_header *oh,
3647 struct ofpbuf *ofpacts)
3652 ofpbuf_use_const(&b, oh, ntohs(oh->length));
3653 raw = ofpraw_pull_assert(&b);
3655 if (raw == OFPRAW_OFPT11_PACKET_OUT) {
3657 const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
3659 po->buffer_id = ntohl(opo->buffer_id);
3660 error = ofputil_port_from_ofp11(opo->in_port, &po->in_port);
3665 error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
3666 oh->version, ofpacts);
3670 } else if (raw == OFPRAW_OFPT10_PACKET_OUT) {
3672 const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
3674 po->buffer_id = ntohl(opo->buffer_id);
3675 po->in_port = u16_to_ofp(ntohs(opo->in_port));
3677 error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
3678 oh->version, ofpacts);
3686 if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX)
3687 && po->in_port != OFPP_LOCAL
3688 && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) {
3689 VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16,
3691 return OFPERR_OFPBRC_BAD_PORT;
3694 po->ofpacts = ofpbuf_data(ofpacts);
3695 po->ofpacts_len = ofpbuf_size(ofpacts);
3697 if (po->buffer_id == UINT32_MAX) {
3698 po->packet = ofpbuf_data(&b);
3699 po->packet_len = ofpbuf_size(&b);
3708 /* ofputil_phy_port */
3710 /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
3711 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
3712 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
3713 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
3714 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
3715 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
3716 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
3717 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
3719 /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
3720 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4));
3721 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4));
3722 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4));
3723 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4));
3724 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4));
3726 static enum netdev_features
3727 netdev_port_features_from_ofp10(ovs_be32 ofp10_)
3729 uint32_t ofp10 = ntohl(ofp10_);
3730 return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4);
3734 netdev_port_features_to_ofp10(enum netdev_features features)
3736 return htonl((features & 0x7f) | ((features & 0xf800) >> 4));
3739 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
3740 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
3741 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
3742 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
3743 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
3744 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
3745 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
3746 BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */
3747 BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */
3748 BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */
3749 BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */
3750 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */
3751 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */
3752 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */
3753 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */
3754 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */
3756 static enum netdev_features
3757 netdev_port_features_from_ofp11(ovs_be32 ofp11)
3759 return ntohl(ofp11) & 0xffff;
3763 netdev_port_features_to_ofp11(enum netdev_features features)
3765 return htonl(features & 0xffff);
3769 ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp,
3770 const struct ofp10_phy_port *opp)
3772 pp->port_no = u16_to_ofp(ntohs(opp->port_no));
3773 memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN);
3774 ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN);
3776 pp->config = ntohl(opp->config) & OFPPC10_ALL;
3777 pp->state = ntohl(opp->state) & OFPPS10_ALL;
3779 pp->curr = netdev_port_features_from_ofp10(opp->curr);
3780 pp->advertised = netdev_port_features_from_ofp10(opp->advertised);
3781 pp->supported = netdev_port_features_from_ofp10(opp->supported);
3782 pp->peer = netdev_port_features_from_ofp10(opp->peer);
3784 pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000;
3785 pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000;
3791 ofputil_decode_ofp11_port(struct ofputil_phy_port *pp,
3792 const struct ofp11_port *op)
3796 error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
3800 memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN);
3801 ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN);
3803 pp->config = ntohl(op->config) & OFPPC11_ALL;
3804 pp->state = ntohl(op->state) & OFPPS11_ALL;
3806 pp->curr = netdev_port_features_from_ofp11(op->curr);
3807 pp->advertised = netdev_port_features_from_ofp11(op->advertised);
3808 pp->supported = netdev_port_features_from_ofp11(op->supported);
3809 pp->peer = netdev_port_features_from_ofp11(op->peer);
3811 pp->curr_speed = ntohl(op->curr_speed);
3812 pp->max_speed = ntohl(op->max_speed);
3818 parse_ofp14_port_ethernet_property(const struct ofpbuf *payload,
3819 struct ofputil_phy_port *pp)
3821 struct ofp14_port_desc_prop_ethernet *eth = ofpbuf_data(payload);
3823 if (ofpbuf_size(payload) != sizeof *eth) {
3824 return OFPERR_OFPBPC_BAD_LEN;
3827 pp->curr = netdev_port_features_from_ofp11(eth->curr);
3828 pp->advertised = netdev_port_features_from_ofp11(eth->advertised);
3829 pp->supported = netdev_port_features_from_ofp11(eth->supported);
3830 pp->peer = netdev_port_features_from_ofp11(eth->peer);
3832 pp->curr_speed = ntohl(eth->curr_speed);
3833 pp->max_speed = ntohl(eth->max_speed);
3839 ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg)
3841 struct ofpbuf properties;
3842 struct ofp14_port *op;
3846 op = ofpbuf_try_pull(msg, sizeof *op);
3848 return OFPERR_OFPBRC_BAD_LEN;
3851 len = ntohs(op->length);
3852 if (len < sizeof *op || len - sizeof *op > ofpbuf_size(msg)) {
3853 return OFPERR_OFPBRC_BAD_LEN;
3856 ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len);
3858 error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
3862 memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN);
3863 ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN);
3865 pp->config = ntohl(op->config) & OFPPC11_ALL;
3866 pp->state = ntohl(op->state) & OFPPS11_ALL;
3868 while (ofpbuf_size(&properties) > 0) {
3869 struct ofpbuf payload;
3873 error = ofputil_pull_property(&properties, &payload, &type);
3879 case OFPPDPT14_ETHERNET:
3880 error = parse_ofp14_port_ethernet_property(&payload, pp);
3884 log_property(true, "unknown port property %"PRIu16, type);
3898 ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp,
3899 struct ofp10_phy_port *opp)
3901 memset(opp, 0, sizeof *opp);
3903 opp->port_no = htons(ofp_to_u16(pp->port_no));
3904 memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
3905 ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN);
3907 opp->config = htonl(pp->config & OFPPC10_ALL);
3908 opp->state = htonl(pp->state & OFPPS10_ALL);
3910 opp->curr = netdev_port_features_to_ofp10(pp->curr);
3911 opp->advertised = netdev_port_features_to_ofp10(pp->advertised);
3912 opp->supported = netdev_port_features_to_ofp10(pp->supported);
3913 opp->peer = netdev_port_features_to_ofp10(pp->peer);
3917 ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp,
3918 struct ofp11_port *op)
3920 memset(op, 0, sizeof *op);
3922 op->port_no = ofputil_port_to_ofp11(pp->port_no);
3923 memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
3924 ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN);
3926 op->config = htonl(pp->config & OFPPC11_ALL);
3927 op->state = htonl(pp->state & OFPPS11_ALL);
3929 op->curr = netdev_port_features_to_ofp11(pp->curr);
3930 op->advertised = netdev_port_features_to_ofp11(pp->advertised);
3931 op->supported = netdev_port_features_to_ofp11(pp->supported);
3932 op->peer = netdev_port_features_to_ofp11(pp->peer);
3934 op->curr_speed = htonl(pp->curr_speed);
3935 op->max_speed = htonl(pp->max_speed);
3939 ofputil_put_ofp14_port(const struct ofputil_phy_port *pp,
3942 struct ofp14_port *op;
3943 struct ofp14_port_desc_prop_ethernet *eth;
3945 ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth);
3947 op = ofpbuf_put_zeros(b, sizeof *op);
3948 op->port_no = ofputil_port_to_ofp11(pp->port_no);
3949 op->length = htons(sizeof *op + sizeof *eth);
3950 memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
3951 ovs_strlcpy(op->name, pp->name, sizeof op->name);
3952 op->config = htonl(pp->config & OFPPC11_ALL);
3953 op->state = htonl(pp->state & OFPPS11_ALL);
3955 eth = ofpbuf_put_zeros(b, sizeof *eth);
3956 eth->type = htons(OFPPDPT14_ETHERNET);
3957 eth->length = htons(sizeof *eth);
3958 eth->curr = netdev_port_features_to_ofp11(pp->curr);
3959 eth->advertised = netdev_port_features_to_ofp11(pp->advertised);
3960 eth->supported = netdev_port_features_to_ofp11(pp->supported);
3961 eth->peer = netdev_port_features_to_ofp11(pp->peer);
3962 eth->curr_speed = htonl(pp->curr_speed);
3963 eth->max_speed = htonl(pp->max_speed);
3967 ofputil_put_phy_port(enum ofp_version ofp_version,
3968 const struct ofputil_phy_port *pp, struct ofpbuf *b)
3970 switch (ofp_version) {
3971 case OFP10_VERSION: {
3972 struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp);
3973 ofputil_encode_ofp10_phy_port(pp, opp);
3979 case OFP13_VERSION: {
3980 struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op);
3981 ofputil_encode_ofp11_port(pp, op);
3987 ofputil_put_ofp14_port(pp, b);
3996 ofputil_decode_port_desc_stats_request(const struct ofp_header *request,
4002 ofpbuf_use_const(&b, request, ntohs(request->length));
4003 raw = ofpraw_pull_assert(&b);
4004 if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) {
4007 } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) {
4008 ovs_be32 *ofp11_port;
4010 ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port);
4011 return ofputil_port_from_ofp11(*ofp11_port, port);
4018 ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version,
4021 struct ofpbuf *request;
4022 ovs_be32 ofp11_port;
4024 switch (ofp_version) {
4030 request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST,
4035 request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST,
4037 ofp11_port = ofputil_port_to_ofp11(port);
4038 ofpbuf_put(request, &ofp11_port, sizeof ofp11_port);
4049 ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp,
4050 struct list *replies)
4052 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
4053 size_t start_ofs = ofpbuf_size(reply);
4055 ofputil_put_phy_port(ofpmp_version(replies), pp, reply);
4056 ofpmp_postappend(replies, start_ofs);
4059 /* ofputil_switch_features */
4061 #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
4062 OFPC_IP_REASM | OFPC_QUEUE_STATS)
4063 BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS);
4064 BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS);
4065 BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS);
4066 BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM);
4067 BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS);
4068 BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP);
4071 ofputil_capabilities_mask(enum ofp_version ofp_version)
4073 /* Handle capabilities whose bit is unique for all Open Flow versions */
4074 switch (ofp_version) {
4077 return OFPC_COMMON | OFPC_ARP_MATCH_IP;
4082 return OFPC_COMMON | OFPC12_PORT_BLOCKED;
4084 /* Caller needs to check osf->header.version itself */
4089 /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an
4090 * abstract representation in '*features'. Initializes '*b' to iterate over
4091 * the OpenFlow port structures following 'osf' with later calls to
4092 * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an
4093 * OFPERR_* value. */
4095 ofputil_decode_switch_features(const struct ofp_header *oh,
4096 struct ofputil_switch_features *features,
4099 const struct ofp_switch_features *osf;
4102 ofpbuf_use_const(b, oh, ntohs(oh->length));
4103 raw = ofpraw_pull_assert(b);
4105 osf = ofpbuf_pull(b, sizeof *osf);
4106 features->datapath_id = ntohll(osf->datapath_id);
4107 features->n_buffers = ntohl(osf->n_buffers);
4108 features->n_tables = osf->n_tables;
4109 features->auxiliary_id = 0;
4111 features->capabilities = ntohl(osf->capabilities) &
4112 ofputil_capabilities_mask(oh->version);
4114 if (raw == OFPRAW_OFPT10_FEATURES_REPLY) {
4115 if (osf->capabilities & htonl(OFPC10_STP)) {
4116 features->capabilities |= OFPUTIL_C_STP;
4118 features->ofpacts = ofpact_bitmap_from_openflow(osf->actions,
4120 } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY
4121 || raw == OFPRAW_OFPT13_FEATURES_REPLY) {
4122 if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) {
4123 features->capabilities |= OFPUTIL_C_GROUP_STATS;
4125 features->ofpacts = 0;
4126 if (raw == OFPRAW_OFPT13_FEATURES_REPLY) {
4127 features->auxiliary_id = osf->auxiliary_id;
4130 return OFPERR_OFPBRC_BAD_VERSION;
4136 /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the
4137 * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and
4138 * later, an OFPT_FEATURES_REPLY does not list ports at all.
4140 * Given a buffer 'b' that contains a Features Reply message, this message
4141 * checks if it contains a complete list of the switch's ports. Returns true,
4142 * if so. Returns false if the list is missing (OF1.3+) or incomplete
4143 * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the
4146 * When this function returns false, the caller should send an OFPST_PORT_DESC
4147 * stats request to get the ports. */
4149 ofputil_switch_features_has_ports(struct ofpbuf *b)
4151 struct ofp_header *oh = ofpbuf_data(b);
4152 size_t phy_port_size;
4154 if (oh->version >= OFP13_VERSION) {
4155 /* OpenFlow 1.3+ never has ports in the feature reply. */
4159 phy_port_size = (oh->version == OFP10_VERSION
4160 ? sizeof(struct ofp10_phy_port)
4161 : sizeof(struct ofp11_port));
4162 if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) {
4163 /* There's room for additional ports in the feature reply.
4164 * Assume that the list is complete. */
4168 /* The feature reply has no room for more ports. Probably the list is
4169 * truncated. Drop the ports and tell the caller to retrieve them with
4170 * OFPST_PORT_DESC. */
4171 ofpbuf_set_size(b, sizeof *oh + sizeof(struct ofp_switch_features));
4172 ofpmsg_update_length(b);
4176 /* Returns a buffer owned by the caller that encodes 'features' in the format
4177 * required by 'protocol' with the given 'xid'. The caller should append port
4178 * information to the buffer with subsequent calls to
4179 * ofputil_put_switch_features_port(). */
4181 ofputil_encode_switch_features(const struct ofputil_switch_features *features,
4182 enum ofputil_protocol protocol, ovs_be32 xid)
4184 struct ofp_switch_features *osf;
4186 enum ofp_version version;
4189 version = ofputil_protocol_to_ofp_version(protocol);
4192 raw = OFPRAW_OFPT10_FEATURES_REPLY;
4196 raw = OFPRAW_OFPT11_FEATURES_REPLY;
4201 raw = OFPRAW_OFPT13_FEATURES_REPLY;
4206 b = ofpraw_alloc_xid(raw, version, xid, 0);
4207 osf = ofpbuf_put_zeros(b, sizeof *osf);
4208 osf->datapath_id = htonll(features->datapath_id);
4209 osf->n_buffers = htonl(features->n_buffers);
4210 osf->n_tables = features->n_tables;
4212 osf->capabilities = htonl(features->capabilities & OFPC_COMMON);
4213 osf->capabilities = htonl(features->capabilities &
4214 ofputil_capabilities_mask(version));
4217 if (features->capabilities & OFPUTIL_C_STP) {
4218 osf->capabilities |= htonl(OFPC10_STP);
4220 osf->actions = ofpact_bitmap_to_openflow(features->ofpacts,
4226 osf->auxiliary_id = features->auxiliary_id;
4230 if (features->capabilities & OFPUTIL_C_GROUP_STATS) {
4231 osf->capabilities |= htonl(OFPC11_GROUP_STATS);
4241 /* Encodes 'pp' into the format required by the switch_features message already
4242 * in 'b', which should have been returned by ofputil_encode_switch_features(),
4243 * and appends the encoded version to 'b'. */
4245 ofputil_put_switch_features_port(const struct ofputil_phy_port *pp,
4248 const struct ofp_header *oh = ofpbuf_data(b);
4250 if (oh->version < OFP13_VERSION) {
4251 /* Try adding a port description to the message, but drop it again if
4252 * the buffer overflows. (This possibility for overflow is why
4253 * OpenFlow 1.3+ moved port descriptions into a multipart message.) */
4254 size_t start_ofs = ofpbuf_size(b);
4255 ofputil_put_phy_port(oh->version, pp, b);
4256 if (ofpbuf_size(b) > UINT16_MAX) {
4257 ofpbuf_set_size(b, start_ofs);
4262 /* ofputil_port_status */
4264 /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
4265 * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
4267 ofputil_decode_port_status(const struct ofp_header *oh,
4268 struct ofputil_port_status *ps)
4270 const struct ofp_port_status *ops;
4274 ofpbuf_use_const(&b, oh, ntohs(oh->length));
4275 ofpraw_pull_assert(&b);
4276 ops = ofpbuf_pull(&b, sizeof *ops);
4278 if (ops->reason != OFPPR_ADD &&
4279 ops->reason != OFPPR_DELETE &&
4280 ops->reason != OFPPR_MODIFY) {
4281 return OFPERR_NXBRC_BAD_REASON;
4283 ps->reason = ops->reason;
4285 retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc);
4286 ovs_assert(retval != EOF);
4290 /* Converts the abstract form of a "port status" message in '*ps' into an
4291 * OpenFlow message suitable for 'protocol', and returns that encoded form in
4292 * a buffer owned by the caller. */
4294 ofputil_encode_port_status(const struct ofputil_port_status *ps,
4295 enum ofputil_protocol protocol)
4297 struct ofp_port_status *ops;
4299 enum ofp_version version;
4302 version = ofputil_protocol_to_ofp_version(protocol);
4305 raw = OFPRAW_OFPT10_PORT_STATUS;
4311 raw = OFPRAW_OFPT11_PORT_STATUS;
4316 raw = OFPRAW_OFPT14_PORT_STATUS;
4323 b = ofpraw_alloc_xid(raw, version, htonl(0), 0);
4324 ops = ofpbuf_put_zeros(b, sizeof *ops);
4325 ops->reason = ps->reason;
4326 ofputil_put_phy_port(version, &ps->desc, b);
4327 ofpmsg_update_length(b);
4331 /* ofputil_port_mod */
4334 parse_port_mod_ethernet_property(struct ofpbuf *property,
4335 struct ofputil_port_mod *pm)
4337 struct ofp14_port_mod_prop_ethernet *eth = ofpbuf_data(property);
4339 if (ofpbuf_size(property) != sizeof *eth) {
4340 return OFPERR_OFPBRC_BAD_LEN;
4343 pm->advertise = netdev_port_features_from_ofp11(eth->advertise);
4347 /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
4348 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
4350 ofputil_decode_port_mod(const struct ofp_header *oh,
4351 struct ofputil_port_mod *pm, bool loose)
4356 ofpbuf_use_const(&b, oh, ntohs(oh->length));
4357 raw = ofpraw_pull_assert(&b);
4359 if (raw == OFPRAW_OFPT10_PORT_MOD) {
4360 const struct ofp10_port_mod *opm = ofpbuf_data(&b);
4362 pm->port_no = u16_to_ofp(ntohs(opm->port_no));
4363 memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
4364 pm->config = ntohl(opm->config) & OFPPC10_ALL;
4365 pm->mask = ntohl(opm->mask) & OFPPC10_ALL;
4366 pm->advertise = netdev_port_features_from_ofp10(opm->advertise);
4367 } else if (raw == OFPRAW_OFPT11_PORT_MOD) {
4368 const struct ofp11_port_mod *opm = ofpbuf_data(&b);
4371 error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
4376 memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
4377 pm->config = ntohl(opm->config) & OFPPC11_ALL;
4378 pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
4379 pm->advertise = netdev_port_features_from_ofp11(opm->advertise);
4380 } else if (raw == OFPRAW_OFPT14_PORT_MOD) {
4381 const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm);
4384 memset(pm, 0, sizeof *pm);
4386 error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
4391 memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
4392 pm->config = ntohl(opm->config) & OFPPC11_ALL;
4393 pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
4395 while (ofpbuf_size(&b) > 0) {
4396 struct ofpbuf property;
4400 error = ofputil_pull_property(&b, &property, &type);
4406 case OFPPMPT14_ETHERNET:
4407 error = parse_port_mod_ethernet_property(&property, pm);
4411 log_property(loose, "unknown port_mod property %"PRIu16, type);
4414 } else if (type == OFPPMPT14_EXPERIMENTER) {
4415 error = OFPERR_OFPBPC_BAD_EXPERIMENTER;
4417 error = OFPERR_OFPBRC_BAD_TYPE;
4427 return OFPERR_OFPBRC_BAD_TYPE;
4430 pm->config &= pm->mask;
4434 /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
4435 * message suitable for 'protocol', and returns that encoded form in a buffer
4436 * owned by the caller. */
4438 ofputil_encode_port_mod(const struct ofputil_port_mod *pm,
4439 enum ofputil_protocol protocol)
4441 enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
4444 switch (ofp_version) {
4445 case OFP10_VERSION: {
4446 struct ofp10_port_mod *opm;
4448 b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0);
4449 opm = ofpbuf_put_zeros(b, sizeof *opm);
4450 opm->port_no = htons(ofp_to_u16(pm->port_no));
4451 memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
4452 opm->config = htonl(pm->config & OFPPC10_ALL);
4453 opm->mask = htonl(pm->mask & OFPPC10_ALL);
4454 opm->advertise = netdev_port_features_to_ofp10(pm->advertise);
4460 case OFP13_VERSION: {
4461 struct ofp11_port_mod *opm;
4463 b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0);
4464 opm = ofpbuf_put_zeros(b, sizeof *opm);
4465 opm->port_no = ofputil_port_to_ofp11(pm->port_no);
4466 memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
4467 opm->config = htonl(pm->config & OFPPC11_ALL);
4468 opm->mask = htonl(pm->mask & OFPPC11_ALL);
4469 opm->advertise = netdev_port_features_to_ofp11(pm->advertise);
4473 case OFP15_VERSION: {
4474 struct ofp14_port_mod_prop_ethernet *eth;
4475 struct ofp14_port_mod *opm;
4477 b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth);
4478 opm = ofpbuf_put_zeros(b, sizeof *opm);
4479 opm->port_no = ofputil_port_to_ofp11(pm->port_no);
4480 memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
4481 opm->config = htonl(pm->config & OFPPC11_ALL);
4482 opm->mask = htonl(pm->mask & OFPPC11_ALL);
4484 if (pm->advertise) {
4485 eth = ofpbuf_put_zeros(b, sizeof *eth);
4486 eth->type = htons(OFPPMPT14_ETHERNET);
4487 eth->length = htons(sizeof *eth);
4488 eth->advertise = netdev_port_features_to_ofp11(pm->advertise);
4499 /* Table features. */
4502 pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload,
4507 error = ofputil_pull_property(msg, payload, typep);
4508 if (payload && !error) {
4509 ofpbuf_pull(payload, sizeof(struct ofp_prop_header));
4515 parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version,
4520 while (ofpbuf_size(payload) > 0) {
4524 error = ofputil_pull_property__(payload, NULL, 1, &type);
4528 if (type < CHAR_BIT * sizeof types) {
4529 types |= 1u << type;
4533 *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version);
4538 parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts)
4541 while (ofpbuf_size(payload) > 0) {
4542 enum ovs_instruction_type inst;
4546 /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs.
4547 * It seems clear that they aren't padded to 8 bytes, though, because
4548 * both standards say that "non-experimenter instructions are 4 bytes"
4549 * and do not mention any padding before the first instruction ID.
4550 * (There wouldn't be any point in padding to 8 bytes if the IDs were
4551 * aligned on an odd 4-byte boundary.)
4553 * Anyway, we just assume they're all glommed together on byte
4555 error = ofputil_pull_property__(payload, NULL, 1, &ofpit);
4560 error = ovs_instruction_type_from_inst_type(&inst, ofpit);
4562 *insts |= 1u << inst;
4563 } else if (!loose) {
4571 parse_table_features_next_table(struct ofpbuf *payload,
4572 unsigned long int *next_tables)
4576 memset(next_tables, 0, bitmap_n_bytes(255));
4577 for (i = 0; i < ofpbuf_size(payload); i++) {
4578 uint8_t id = ((const uint8_t *) ofpbuf_data(payload))[i];
4580 return OFPERR_OFPBPC_BAD_VALUE;
4582 bitmap_set1(next_tables, id);
4588 parse_oxms(struct ofpbuf *payload, bool loose,
4589 struct mf_bitmap *exactp, struct mf_bitmap *maskedp)
4591 struct mf_bitmap exact = MF_BITMAP_INITIALIZER;
4592 struct mf_bitmap masked = MF_BITMAP_INITIALIZER;
4594 while (ofpbuf_size(payload) > 0) {
4595 const struct mf_field *field;
4599 error = nx_pull_header(payload, &field, &hasmask);
4601 bitmap_set1(hasmask ? masked.bm : exact.bm, field->id);
4602 } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) {
4608 } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) {
4609 return OFPERR_OFPBMC_BAD_MASK;
4613 } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) {
4614 return OFPERR_OFPBMC_BAD_MASK;
4619 /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract
4620 * ofputil_table_features in 'tf'.
4622 * If 'loose' is true, this function ignores properties and values that it does
4623 * not understand, as a controller would want to do when interpreting
4624 * capabilities provided by a switch. If 'loose' is false, this function
4625 * treats unknown properties and values as an error, as a switch would want to
4626 * do when interpreting a configuration request made by a controller.
4628 * A single OpenFlow message can specify features for multiple tables. Calling
4629 * this function multiple times for a single 'msg' iterates through the tables
4630 * in the message. The caller must initially leave 'msg''s layer pointers null
4631 * and not modify them between calls.
4633 * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise
4634 * a positive "enum ofperr" value. */
4636 ofputil_decode_table_features(struct ofpbuf *msg,
4637 struct ofputil_table_features *tf, bool loose)
4639 const struct ofp_header *oh;
4640 struct ofp13_table_features *otf;
4641 struct ofpbuf properties;
4644 memset(tf, 0, sizeof *tf);
4647 ofpraw_pull_assert(msg);
4649 oh = ofpbuf_l2(msg);
4651 if (!ofpbuf_size(msg)) {
4655 if (ofpbuf_size(msg) < sizeof *otf) {
4656 return OFPERR_OFPBPC_BAD_LEN;
4659 otf = ofpbuf_data(msg);
4660 len = ntohs(otf->length);
4661 if (len < sizeof *otf || len % 8 || len > ofpbuf_size(msg)) {
4662 return OFPERR_OFPBPC_BAD_LEN;
4664 ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len);
4665 ofpbuf_pull(&properties, sizeof *otf);
4667 tf->table_id = otf->table_id;
4668 if (tf->table_id == OFPTT_ALL) {
4669 return OFPERR_OFPTFFC_BAD_TABLE;
4672 ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN);
4673 tf->metadata_match = otf->metadata_match;
4674 tf->metadata_write = otf->metadata_write;
4675 tf->miss_config = ofputil_table_miss_from_config(otf->config, oh->version);
4676 tf->max_entries = ntohl(otf->max_entries);
4678 while (ofpbuf_size(&properties) > 0) {
4679 struct ofpbuf payload;
4683 error = pull_table_feature_property(&properties, &payload, &type);
4688 switch ((enum ofp13_table_feature_prop_type) type) {
4689 case OFPTFPT13_INSTRUCTIONS:
4690 error = parse_instruction_ids(&payload, loose,
4691 &tf->nonmiss.instructions);
4693 case OFPTFPT13_INSTRUCTIONS_MISS:
4694 error = parse_instruction_ids(&payload, loose,
4695 &tf->miss.instructions);
4698 case OFPTFPT13_NEXT_TABLES:
4699 error = parse_table_features_next_table(&payload,
4702 case OFPTFPT13_NEXT_TABLES_MISS:
4703 error = parse_table_features_next_table(&payload, tf->miss.next);
4706 case OFPTFPT13_WRITE_ACTIONS:
4707 error = parse_action_bitmap(&payload, oh->version,
4708 &tf->nonmiss.write.ofpacts);
4710 case OFPTFPT13_WRITE_ACTIONS_MISS:
4711 error = parse_action_bitmap(&payload, oh->version,
4712 &tf->miss.write.ofpacts);
4715 case OFPTFPT13_APPLY_ACTIONS:
4716 error = parse_action_bitmap(&payload, oh->version,
4717 &tf->nonmiss.apply.ofpacts);
4719 case OFPTFPT13_APPLY_ACTIONS_MISS:
4720 error = parse_action_bitmap(&payload, oh->version,
4721 &tf->miss.apply.ofpacts);
4724 case OFPTFPT13_MATCH:
4725 error = parse_oxms(&payload, loose, &tf->match, &tf->mask);
4727 case OFPTFPT13_WILDCARDS:
4728 error = parse_oxms(&payload, loose, &tf->wildcard, NULL);
4731 case OFPTFPT13_WRITE_SETFIELD:
4732 error = parse_oxms(&payload, loose,
4733 &tf->nonmiss.write.set_fields, NULL);
4735 case OFPTFPT13_WRITE_SETFIELD_MISS:
4736 error = parse_oxms(&payload, loose,
4737 &tf->miss.write.set_fields, NULL);
4739 case OFPTFPT13_APPLY_SETFIELD:
4740 error = parse_oxms(&payload, loose,
4741 &tf->nonmiss.apply.set_fields, NULL);
4743 case OFPTFPT13_APPLY_SETFIELD_MISS:
4744 error = parse_oxms(&payload, loose,
4745 &tf->miss.apply.set_fields, NULL);
4748 case OFPTFPT13_EXPERIMENTER:
4749 case OFPTFPT13_EXPERIMENTER_MISS:
4751 log_property(loose, "unknown table features property %"PRIu16,
4753 error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE;
4761 /* Fix inconsistencies:
4763 * - Turn on 'match' bits that are set in 'mask', because maskable
4764 * fields are matchable.
4766 * - Turn on 'wildcard' bits that are set in 'mask', because a field
4767 * that is arbitrarily maskable can be wildcarded entirely.
4769 * - Turn off 'wildcard' bits that are not in 'match', because a field
4770 * must be matchable for it to be meaningfully wildcarded. */
4771 bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS);
4772 bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS);
4773 bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS);
4778 /* Encodes and returns a request to obtain the table features of a switch.
4779 * The message is encoded for OpenFlow version 'ofp_version'. */
4781 ofputil_encode_table_features_request(enum ofp_version ofp_version)
4783 struct ofpbuf *request = NULL;
4785 switch (ofp_version) {
4789 ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later "
4790 "(\'-O OpenFlow13\')");
4794 request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST,
4805 put_fields_property(struct ofpbuf *reply,
4806 const struct mf_bitmap *fields,
4807 const struct mf_bitmap *masks,
4808 enum ofp13_table_feature_prop_type property,
4809 enum ofp_version version)
4814 start_ofs = start_property(reply, property);
4815 BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) {
4816 nx_put_header(reply, field, version,
4817 masks && bitmap_is_set(masks->bm, field));
4819 end_property(reply, start_ofs);
4823 put_table_action_features(struct ofpbuf *reply,
4824 const struct ofputil_table_action_features *taf,
4825 enum ofp13_table_feature_prop_type actions_type,
4826 enum ofp13_table_feature_prop_type set_fields_type,
4827 int miss_offset, enum ofp_version version)
4831 start_ofs = start_property(reply, actions_type + miss_offset);
4832 put_bitmap_properties(reply,
4833 ntohl(ofpact_bitmap_to_openflow(taf->ofpacts,
4835 end_property(reply, start_ofs);
4837 put_fields_property(reply, &taf->set_fields, NULL,
4838 set_fields_type + miss_offset, version);
4842 put_table_instruction_features(
4843 struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif,
4844 int miss_offset, enum ofp_version version)
4849 start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset);
4850 put_bitmap_properties(reply,
4851 ntohl(ovsinst_bitmap_to_openflow(tif->instructions,
4853 end_property(reply, start_ofs);
4855 start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset);
4856 BITMAP_FOR_EACH_1 (table_id, 255, tif->next) {
4857 ofpbuf_put(reply, &table_id, 1);
4859 end_property(reply, start_ofs);
4861 put_table_action_features(reply, &tif->write,
4862 OFPTFPT13_WRITE_ACTIONS,
4863 OFPTFPT13_WRITE_SETFIELD, miss_offset, version);
4864 put_table_action_features(reply, &tif->apply,
4865 OFPTFPT13_APPLY_ACTIONS,
4866 OFPTFPT13_APPLY_SETFIELD, miss_offset, version);
4870 ofputil_append_table_features_reply(const struct ofputil_table_features *tf,
4871 struct list *replies)
4873 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
4874 enum ofp_version version = ofpmp_version(replies);
4875 size_t start_ofs = ofpbuf_size(reply);
4876 struct ofp13_table_features *otf;
4878 otf = ofpbuf_put_zeros(reply, sizeof *otf);
4879 otf->table_id = tf->table_id;
4880 ovs_strlcpy(otf->name, tf->name, sizeof otf->name);
4881 otf->metadata_match = tf->metadata_match;
4882 otf->metadata_write = tf->metadata_write;
4883 otf->config = ofputil_table_miss_to_config(tf->miss_config, version);
4884 otf->max_entries = htonl(tf->max_entries);
4886 put_table_instruction_features(reply, &tf->nonmiss, 0, version);
4887 put_table_instruction_features(reply, &tf->miss, 1, version);
4889 put_fields_property(reply, &tf->match, &tf->mask,
4890 OFPTFPT13_MATCH, version);
4891 put_fields_property(reply, &tf->wildcard, NULL,
4892 OFPTFPT13_WILDCARDS, version);
4894 otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf);
4895 otf->length = htons(ofpbuf_size(reply) - start_ofs);
4896 ofpmp_postappend(replies, start_ofs);
4899 /* ofputil_table_mod */
4901 /* Given 'config', taken from an OpenFlow 'version' message that specifies
4902 * table configuration (a table mod, table stats, or table features message),
4903 * returns the table miss configuration that it specifies. */
4904 static enum ofputil_table_miss
4905 ofputil_table_miss_from_config(ovs_be32 config_, enum ofp_version version)
4907 uint32_t config = ntohl(config_);
4909 if (version < OFP13_VERSION) {
4910 switch (config & OFPTC11_TABLE_MISS_MASK) {
4911 case OFPTC11_TABLE_MISS_CONTROLLER:
4912 return OFPUTIL_TABLE_MISS_CONTROLLER;
4914 case OFPTC11_TABLE_MISS_CONTINUE:
4915 return OFPUTIL_TABLE_MISS_CONTINUE;
4917 case OFPTC11_TABLE_MISS_DROP:
4918 return OFPUTIL_TABLE_MISS_DROP;
4921 VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config);
4922 return OFPUTIL_TABLE_MISS_CONTROLLER;
4925 return OFPUTIL_TABLE_MISS_DEFAULT;
4929 /* Given a table miss configuration, returns the corresponding OpenFlow table
4930 * configuration for use in an OpenFlow message of the given 'version'. */
4932 ofputil_table_miss_to_config(enum ofputil_table_miss miss,
4933 enum ofp_version version)
4935 if (version < OFP13_VERSION) {
4937 case OFPUTIL_TABLE_MISS_CONTROLLER:
4938 case OFPUTIL_TABLE_MISS_DEFAULT:
4939 return htonl(OFPTC11_TABLE_MISS_CONTROLLER);
4941 case OFPUTIL_TABLE_MISS_CONTINUE:
4942 return htonl(OFPTC11_TABLE_MISS_CONTINUE);
4944 case OFPUTIL_TABLE_MISS_DROP:
4945 return htonl(OFPTC11_TABLE_MISS_DROP);
4955 /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in
4956 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
4958 ofputil_decode_table_mod(const struct ofp_header *oh,
4959 struct ofputil_table_mod *pm)
4964 ofpbuf_use_const(&b, oh, ntohs(oh->length));
4965 raw = ofpraw_pull_assert(&b);
4967 if (raw == OFPRAW_OFPT11_TABLE_MOD) {
4968 const struct ofp11_table_mod *otm = ofpbuf_data(&b);
4970 pm->table_id = otm->table_id;
4971 pm->miss_config = ofputil_table_miss_from_config(otm->config,
4973 } else if (raw == OFPRAW_OFPT14_TABLE_MOD) {
4974 const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm);
4976 pm->table_id = otm->table_id;
4977 pm->miss_config = ofputil_table_miss_from_config(otm->config,
4979 /* We do not understand any properties yet, so we do not bother
4982 return OFPERR_OFPBRC_BAD_TYPE;
4988 /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow
4989 * message suitable for 'protocol', and returns that encoded form in a buffer
4990 * owned by the caller. */
4992 ofputil_encode_table_mod(const struct ofputil_table_mod *pm,
4993 enum ofputil_protocol protocol)
4995 enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
4998 switch (ofp_version) {
4999 case OFP10_VERSION: {
5000 ovs_fatal(0, "table mod needs OpenFlow 1.1 or later "
5001 "(\'-O OpenFlow11\')");
5006 case OFP13_VERSION: {
5007 struct ofp11_table_mod *otm;
5009 b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0);
5010 otm = ofpbuf_put_zeros(b, sizeof *otm);
5011 otm->table_id = pm->table_id;
5012 otm->config = ofputil_table_miss_to_config(pm->miss_config,
5017 case OFP15_VERSION: {
5018 struct ofp14_table_mod *otm;
5020 b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0);
5021 otm = ofpbuf_put_zeros(b, sizeof *otm);
5022 otm->table_id = pm->table_id;
5023 otm->config = ofputil_table_miss_to_config(pm->miss_config,
5034 /* ofputil_role_request */
5036 /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into
5037 * an abstract form in '*rr'. Returns 0 if successful, otherwise an
5038 * OFPERR_* value. */
5040 ofputil_decode_role_message(const struct ofp_header *oh,
5041 struct ofputil_role_request *rr)
5046 ofpbuf_use_const(&b, oh, ntohs(oh->length));
5047 raw = ofpraw_pull_assert(&b);
5049 if (raw == OFPRAW_OFPT12_ROLE_REQUEST ||
5050 raw == OFPRAW_OFPT12_ROLE_REPLY) {
5051 const struct ofp12_role_request *orr = ofpbuf_l3(&b);
5053 if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
5054 orr->role != htonl(OFPCR12_ROLE_EQUAL) &&
5055 orr->role != htonl(OFPCR12_ROLE_MASTER) &&
5056 orr->role != htonl(OFPCR12_ROLE_SLAVE)) {
5057 return OFPERR_OFPRRFC_BAD_ROLE;
5060 rr->role = ntohl(orr->role);
5061 if (raw == OFPRAW_OFPT12_ROLE_REQUEST
5062 ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE)
5063 : orr->generation_id == OVS_BE64_MAX) {
5064 rr->have_generation_id = false;
5065 rr->generation_id = 0;
5067 rr->have_generation_id = true;
5068 rr->generation_id = ntohll(orr->generation_id);
5070 } else if (raw == OFPRAW_NXT_ROLE_REQUEST ||
5071 raw == OFPRAW_NXT_ROLE_REPLY) {
5072 const struct nx_role_request *nrr = ofpbuf_l3(&b);
5074 BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL);
5075 BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER);
5076 BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE);
5078 if (nrr->role != htonl(NX_ROLE_OTHER) &&
5079 nrr->role != htonl(NX_ROLE_MASTER) &&
5080 nrr->role != htonl(NX_ROLE_SLAVE)) {
5081 return OFPERR_OFPRRFC_BAD_ROLE;
5084 rr->role = ntohl(nrr->role) + 1;
5085 rr->have_generation_id = false;
5086 rr->generation_id = 0;
5094 /* Returns an encoded form of a role reply suitable for the "request" in a
5095 * buffer owned by the caller. */
5097 ofputil_encode_role_reply(const struct ofp_header *request,
5098 const struct ofputil_role_request *rr)
5103 raw = ofpraw_decode_assert(request);
5104 if (raw == OFPRAW_OFPT12_ROLE_REQUEST) {
5105 struct ofp12_role_request *orr;
5107 buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0);
5108 orr = ofpbuf_put_zeros(buf, sizeof *orr);
5110 orr->role = htonl(rr->role);
5111 orr->generation_id = htonll(rr->have_generation_id
5114 } else if (raw == OFPRAW_NXT_ROLE_REQUEST) {
5115 struct nx_role_request *nrr;
5117 BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1);
5118 BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1);
5119 BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1);
5121 buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0);
5122 nrr = ofpbuf_put_zeros(buf, sizeof *nrr);
5123 nrr->role = htonl(rr->role - 1);
5131 /* Encodes "role status" message 'status' for sending in the given
5132 * 'protocol'. Returns the role status message, if 'protocol' supports them,
5133 * otherwise a null pointer. */
5135 ofputil_encode_role_status(const struct ofputil_role_status *status,
5136 enum ofputil_protocol protocol)
5138 enum ofp_version version;
5140 version = ofputil_protocol_to_ofp_version(protocol);
5141 if (version >= OFP14_VERSION) {
5142 struct ofp14_role_status *rstatus;
5145 buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0),
5147 rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus);
5148 rstatus->role = htonl(status->role);
5149 rstatus->reason = status->reason;
5150 rstatus->generation_id = htonll(status->generation_id);
5159 ofputil_decode_role_status(const struct ofp_header *oh,
5160 struct ofputil_role_status *rs)
5164 const struct ofp14_role_status *r;
5166 ofpbuf_use_const(&b, oh, ntohs(oh->length));
5167 raw = ofpraw_pull_assert(&b);
5168 ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS);
5171 if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
5172 r->role != htonl(OFPCR12_ROLE_EQUAL) &&
5173 r->role != htonl(OFPCR12_ROLE_MASTER) &&
5174 r->role != htonl(OFPCR12_ROLE_SLAVE)) {
5175 return OFPERR_OFPRRFC_BAD_ROLE;
5178 rs->role = ntohl(r->role);
5179 rs->generation_id = ntohll(r->generation_id);
5180 rs->reason = r->reason;
5187 /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be
5188 * matched and a field that must be wildcarded. This function returns a bitmap
5189 * that contains both kinds of fields. */
5190 static struct mf_bitmap
5191 wild_or_nonmatchable_fields(const struct ofputil_table_features *features)
5193 struct mf_bitmap wc = features->match;
5194 bitmap_not(wc.bm, MFF_N_IDS);
5195 bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS);
5199 struct ofp10_wc_map {
5200 enum ofp10_flow_wildcards wc10;
5201 enum mf_field_id mf;
5204 static const struct ofp10_wc_map ofp10_wc_map[] = {
5205 { OFPFW10_IN_PORT, MFF_IN_PORT },
5206 { OFPFW10_DL_VLAN, MFF_VLAN_VID },
5207 { OFPFW10_DL_SRC, MFF_ETH_SRC },
5208 { OFPFW10_DL_DST, MFF_ETH_DST},
5209 { OFPFW10_DL_TYPE, MFF_ETH_TYPE },
5210 { OFPFW10_NW_PROTO, MFF_IP_PROTO },
5211 { OFPFW10_TP_SRC, MFF_TCP_SRC },
5212 { OFPFW10_TP_DST, MFF_TCP_DST },
5213 { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC },
5214 { OFPFW10_NW_DST_MASK, MFF_IPV4_DST },
5215 { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP },
5216 { OFPFW10_NW_TOS, MFF_IP_DSCP },
5220 mf_bitmap_to_of10(const struct mf_bitmap *fields)
5222 const struct ofp10_wc_map *p;
5225 for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) {
5226 if (bitmap_is_set(fields->bm, p->mf)) {
5233 static struct mf_bitmap
5234 mf_bitmap_from_of10(ovs_be32 wc10_)
5236 struct mf_bitmap fields = MF_BITMAP_INITIALIZER;
5237 const struct ofp10_wc_map *p;
5238 uint32_t wc10 = ntohl(wc10_);
5240 for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) {
5241 if (wc10 & p->wc10) {
5242 bitmap_set1(fields.bm, p->mf);
5249 ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats,
5250 const struct ofputil_table_features *features,
5253 struct mf_bitmap wc = wild_or_nonmatchable_fields(features);
5254 struct ofp10_table_stats *out;
5256 out = ofpbuf_put_zeros(buf, sizeof *out);
5257 out->table_id = features->table_id;
5258 ovs_strlcpy(out->name, features->name, sizeof out->name);
5259 out->wildcards = mf_bitmap_to_of10(&wc);
5260 out->max_entries = htonl(features->max_entries);
5261 out->active_count = htonl(stats->active_count);
5262 put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count));
5263 put_32aligned_be64(&out->matched_count, htonll(stats->matched_count));
5266 struct ofp11_wc_map {
5267 enum ofp11_flow_match_fields wc11;
5268 enum mf_field_id mf;
5271 static const struct ofp11_wc_map ofp11_wc_map[] = {
5272 { OFPFMF11_IN_PORT, MFF_IN_PORT },
5273 { OFPFMF11_DL_VLAN, MFF_VLAN_VID },
5274 { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP },
5275 { OFPFMF11_DL_TYPE, MFF_ETH_TYPE },
5276 { OFPFMF11_NW_TOS, MFF_IP_DSCP },
5277 { OFPFMF11_NW_PROTO, MFF_IP_PROTO },
5278 { OFPFMF11_TP_SRC, MFF_TCP_SRC },
5279 { OFPFMF11_TP_DST, MFF_TCP_DST },
5280 { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL },
5281 { OFPFMF11_MPLS_TC, MFF_MPLS_TC },
5282 /* I don't know what OFPFMF11_TYPE means. */
5283 { OFPFMF11_DL_SRC, MFF_ETH_SRC },
5284 { OFPFMF11_DL_DST, MFF_ETH_DST },
5285 { OFPFMF11_NW_SRC, MFF_IPV4_SRC },
5286 { OFPFMF11_NW_DST, MFF_IPV4_DST },
5287 { OFPFMF11_METADATA, MFF_METADATA },
5291 mf_bitmap_to_of11(const struct mf_bitmap *fields)
5293 const struct ofp11_wc_map *p;
5296 for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) {
5297 if (bitmap_is_set(fields->bm, p->mf)) {
5304 static struct mf_bitmap
5305 mf_bitmap_from_of11(ovs_be32 wc11_)
5307 struct mf_bitmap fields = MF_BITMAP_INITIALIZER;
5308 const struct ofp11_wc_map *p;
5309 uint32_t wc11 = ntohl(wc11_);
5311 for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) {
5312 if (wc11 & p->wc11) {
5313 bitmap_set1(fields.bm, p->mf);
5320 ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats,
5321 const struct ofputil_table_features *features,
5324 struct mf_bitmap wc = wild_or_nonmatchable_fields(features);
5325 struct ofp11_table_stats *out;
5327 out = ofpbuf_put_zeros(buf, sizeof *out);
5328 out->table_id = features->table_id;
5329 ovs_strlcpy(out->name, features->name, sizeof out->name);
5330 out->wildcards = mf_bitmap_to_of11(&wc);
5331 out->match = mf_bitmap_to_of11(&features->match);
5332 out->instructions = ovsinst_bitmap_to_openflow(
5333 features->nonmiss.instructions, OFP11_VERSION);
5334 out->write_actions = ofpact_bitmap_to_openflow(
5335 features->nonmiss.write.ofpacts, OFP11_VERSION);
5336 out->apply_actions = ofpact_bitmap_to_openflow(
5337 features->nonmiss.apply.ofpacts, OFP11_VERSION);
5338 out->config = htonl(features->miss_config);
5339 out->max_entries = htonl(features->max_entries);
5340 out->active_count = htonl(stats->active_count);
5341 out->lookup_count = htonll(stats->lookup_count);
5342 out->matched_count = htonll(stats->matched_count);
5346 ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats,
5347 const struct ofputil_table_features *features,
5350 struct ofp12_table_stats *out;
5352 out = ofpbuf_put_zeros(buf, sizeof *out);
5353 out->table_id = features->table_id;
5354 ovs_strlcpy(out->name, features->name, sizeof out->name);
5355 out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION);
5356 out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard,
5358 out->write_actions = ofpact_bitmap_to_openflow(
5359 features->nonmiss.write.ofpacts, OFP12_VERSION);
5360 out->apply_actions = ofpact_bitmap_to_openflow(
5361 features->nonmiss.apply.ofpacts, OFP12_VERSION);
5362 out->write_setfields = oxm_bitmap_from_mf_bitmap(
5363 &features->nonmiss.write.set_fields, OFP12_VERSION);
5364 out->apply_setfields = oxm_bitmap_from_mf_bitmap(
5365 &features->nonmiss.apply.set_fields, OFP12_VERSION);
5366 out->metadata_match = features->metadata_match;
5367 out->metadata_write = features->metadata_write;
5368 out->instructions = ovsinst_bitmap_to_openflow(
5369 features->nonmiss.instructions, OFP12_VERSION);
5370 out->config = ofputil_table_miss_to_config(features->miss_config,
5372 out->max_entries = htonl(features->max_entries);
5373 out->active_count = htonl(stats->active_count);
5374 out->lookup_count = htonll(stats->lookup_count);
5375 out->matched_count = htonll(stats->matched_count);
5379 ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats,
5382 struct ofp13_table_stats *out;
5384 out = ofpbuf_put_zeros(buf, sizeof *out);
5385 out->table_id = stats->table_id;
5386 out->active_count = htonl(stats->active_count);
5387 out->lookup_count = htonll(stats->lookup_count);
5388 out->matched_count = htonll(stats->matched_count);
5392 ofputil_encode_table_stats_reply(const struct ofp_header *request)
5394 return ofpraw_alloc_stats_reply(request, 0);
5398 ofputil_append_table_stats_reply(struct ofpbuf *reply,
5399 const struct ofputil_table_stats *stats,
5400 const struct ofputil_table_features *features)
5402 struct ofp_header *oh = ofpbuf_l2(reply);
5404 ovs_assert(stats->table_id == features->table_id);
5406 switch ((enum ofp_version) oh->version) {
5408 ofputil_put_ofp10_table_stats(stats, features, reply);
5412 ofputil_put_ofp11_table_stats(stats, features, reply);
5416 ofputil_put_ofp12_table_stats(stats, features, reply);
5422 ofputil_put_ofp13_table_stats(stats, reply);
5431 ofputil_decode_ofp10_table_stats(struct ofpbuf *msg,
5432 struct ofputil_table_stats *stats,
5433 struct ofputil_table_features *features)
5435 struct ofp10_table_stats *ots;
5437 ots = ofpbuf_try_pull(msg, sizeof *ots);
5439 return OFPERR_OFPBRC_BAD_LEN;
5442 features->table_id = ots->table_id;
5443 ovs_strlcpy(features->name, ots->name, sizeof features->name);
5444 features->max_entries = ntohl(ots->max_entries);
5445 features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards);
5447 stats->table_id = ots->table_id;
5448 stats->active_count = ntohl(ots->active_count);
5449 stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count));
5450 stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count));
5456 ofputil_decode_ofp11_table_stats(struct ofpbuf *msg,
5457 struct ofputil_table_stats *stats,
5458 struct ofputil_table_features *features)
5460 struct ofp11_table_stats *ots;
5462 ots = ofpbuf_try_pull(msg, sizeof *ots);
5464 return OFPERR_OFPBRC_BAD_LEN;
5467 features->table_id = ots->table_id;
5468 ovs_strlcpy(features->name, ots->name, sizeof features->name);
5469 features->max_entries = ntohl(ots->max_entries);
5470 features->nonmiss.instructions = ovsinst_bitmap_from_openflow(
5471 ots->instructions, OFP11_VERSION);
5472 features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow(
5473 ots->write_actions, OFP11_VERSION);
5474 features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow(
5475 ots->write_actions, OFP11_VERSION);
5476 features->miss = features->nonmiss;
5477 features->miss_config = ofputil_table_miss_from_config(ots->config,
5479 features->match = mf_bitmap_from_of11(ots->match);
5480 features->wildcard = mf_bitmap_from_of11(ots->wildcards);
5481 bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS);
5483 stats->table_id = ots->table_id;
5484 stats->active_count = ntohl(ots->active_count);
5485 stats->lookup_count = ntohll(ots->lookup_count);
5486 stats->matched_count = ntohll(ots->matched_count);
5492 ofputil_decode_ofp12_table_stats(struct ofpbuf *msg,
5493 struct ofputil_table_stats *stats,
5494 struct ofputil_table_features *features)
5496 struct ofp12_table_stats *ots;
5498 ots = ofpbuf_try_pull(msg, sizeof *ots);
5500 return OFPERR_OFPBRC_BAD_LEN;
5503 features->table_id = ots->table_id;
5504 ovs_strlcpy(features->name, ots->name, sizeof features->name);
5505 features->metadata_match = ots->metadata_match;
5506 features->metadata_write = ots->metadata_write;
5507 features->miss_config = ofputil_table_miss_from_config(ots->config,
5509 features->max_entries = ntohl(ots->max_entries);
5511 features->nonmiss.instructions = ovsinst_bitmap_from_openflow(
5512 ots->instructions, OFP12_VERSION);
5513 features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow(
5514 ots->write_actions, OFP12_VERSION);
5515 features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow(
5516 ots->apply_actions, OFP12_VERSION);
5517 features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap(
5518 ots->write_setfields, OFP12_VERSION);
5519 features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap(
5520 ots->apply_setfields, OFP12_VERSION);
5521 features->miss = features->nonmiss;
5523 features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION);
5524 features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards,
5526 bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS);
5528 stats->table_id = ots->table_id;
5529 stats->active_count = ntohl(ots->active_count);
5530 stats->lookup_count = ntohll(ots->lookup_count);
5531 stats->matched_count = ntohll(ots->matched_count);
5537 ofputil_decode_ofp13_table_stats(struct ofpbuf *msg,
5538 struct ofputil_table_stats *stats,
5539 struct ofputil_table_features *features)
5541 struct ofp13_table_stats *ots;
5543 ots = ofpbuf_try_pull(msg, sizeof *ots);
5545 return OFPERR_OFPBRC_BAD_LEN;
5548 features->table_id = ots->table_id;
5550 stats->table_id = ots->table_id;
5551 stats->active_count = ntohl(ots->active_count);
5552 stats->lookup_count = ntohll(ots->lookup_count);
5553 stats->matched_count = ntohll(ots->matched_count);
5559 ofputil_decode_table_stats_reply(struct ofpbuf *msg,
5560 struct ofputil_table_stats *stats,
5561 struct ofputil_table_features *features)
5563 const struct ofp_header *oh;
5566 ofpraw_pull_assert(msg);
5570 if (!ofpbuf_size(msg)) {
5574 memset(stats, 0, sizeof *stats);
5575 memset(features, 0, sizeof *features);
5577 switch ((enum ofp_version) oh->version) {
5579 return ofputil_decode_ofp10_table_stats(msg, stats, features);
5582 return ofputil_decode_ofp11_table_stats(msg, stats, features);
5585 return ofputil_decode_ofp12_table_stats(msg, stats, features);
5590 return ofputil_decode_ofp13_table_stats(msg, stats, features);
5597 /* ofputil_flow_monitor_request */
5599 /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
5600 * ofputil_flow_monitor_request in 'rq'.
5602 * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
5603 * message. Calling this function multiple times for a single 'msg' iterates
5604 * through the requests. The caller must initially leave 'msg''s layer
5605 * pointers null and not modify them between calls.
5607 * Returns 0 if successful, EOF if no requests were left in this 'msg',
5608 * otherwise an OFPERR_* value. */
5610 ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq,
5613 struct nx_flow_monitor_request *nfmr;
5617 ofpraw_pull_assert(msg);
5620 if (!ofpbuf_size(msg)) {
5624 nfmr = ofpbuf_try_pull(msg, sizeof *nfmr);
5626 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" "
5627 "leftover bytes at end", ofpbuf_size(msg));
5628 return OFPERR_OFPBRC_BAD_LEN;
5631 flags = ntohs(nfmr->flags);
5632 if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY))
5633 || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE
5634 | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) {
5635 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16,
5637 return OFPERR_OFPMOFC_BAD_FLAGS;
5640 if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) {
5641 return OFPERR_NXBRC_MUST_BE_ZERO;
5644 rq->id = ntohl(nfmr->id);
5646 rq->out_port = u16_to_ofp(ntohs(nfmr->out_port));
5647 rq->table_id = nfmr->table_id;
5649 return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL);
5653 ofputil_append_flow_monitor_request(
5654 const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg)
5656 struct nx_flow_monitor_request *nfmr;
5660 if (!ofpbuf_size(msg)) {
5661 ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg);
5664 start_ofs = ofpbuf_size(msg);
5665 ofpbuf_put_zeros(msg, sizeof *nfmr);
5666 match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0));
5668 nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr);
5669 nfmr->id = htonl(rq->id);
5670 nfmr->flags = htons(rq->flags);
5671 nfmr->out_port = htons(ofp_to_u16(rq->out_port));
5672 nfmr->match_len = htons(match_len);
5673 nfmr->table_id = rq->table_id;
5676 /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
5677 * into an abstract ofputil_flow_update in 'update'. The caller must have
5678 * initialized update->match to point to space allocated for a match.
5680 * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
5681 * actions (except for NXFME_ABBREV, which never includes actions). The caller
5682 * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
5683 * will point into the 'ofpacts' buffer.
5685 * Multiple flow updates can be packed into a single OpenFlow message. Calling
5686 * this function multiple times for a single 'msg' iterates through the
5687 * updates. The caller must initially leave 'msg''s layer pointers null and
5688 * not modify them between calls.
5690 * Returns 0 if successful, EOF if no updates were left in this 'msg',
5691 * otherwise an OFPERR_* value. */
5693 ofputil_decode_flow_update(struct ofputil_flow_update *update,
5694 struct ofpbuf *msg, struct ofpbuf *ofpacts)
5696 struct nx_flow_update_header *nfuh;
5697 unsigned int length;
5698 struct ofp_header *oh;
5701 ofpraw_pull_assert(msg);
5704 if (!ofpbuf_size(msg)) {
5708 if (ofpbuf_size(msg) < sizeof(struct nx_flow_update_header)) {
5714 nfuh = ofpbuf_data(msg);
5715 update->event = ntohs(nfuh->event);
5716 length = ntohs(nfuh->length);
5717 if (length > ofpbuf_size(msg) || length % 8) {
5721 if (update->event == NXFME_ABBREV) {
5722 struct nx_flow_update_abbrev *nfua;
5724 if (length != sizeof *nfua) {
5728 nfua = ofpbuf_pull(msg, sizeof *nfua);
5729 update->xid = nfua->xid;
5731 } else if (update->event == NXFME_ADDED
5732 || update->event == NXFME_DELETED
5733 || update->event == NXFME_MODIFIED) {
5734 struct nx_flow_update_full *nfuf;
5735 unsigned int actions_len;
5736 unsigned int match_len;
5739 if (length < sizeof *nfuf) {
5743 nfuf = ofpbuf_pull(msg, sizeof *nfuf);
5744 match_len = ntohs(nfuf->match_len);
5745 if (sizeof *nfuf + match_len > length) {
5749 update->reason = ntohs(nfuf->reason);
5750 update->idle_timeout = ntohs(nfuf->idle_timeout);
5751 update->hard_timeout = ntohs(nfuf->hard_timeout);
5752 update->table_id = nfuf->table_id;
5753 update->cookie = nfuf->cookie;
5754 update->priority = ntohs(nfuf->priority);
5756 error = nx_pull_match(msg, match_len, update->match, NULL, NULL);
5761 actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8);
5762 error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version,
5768 update->ofpacts = ofpbuf_data(ofpacts);
5769 update->ofpacts_len = ofpbuf_size(ofpacts);
5772 VLOG_WARN_RL(&bad_ofmsg_rl,
5773 "NXST_FLOW_MONITOR reply has bad event %"PRIu16,
5774 ntohs(nfuh->event));
5775 return OFPERR_NXBRC_FM_BAD_EVENT;
5779 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" "
5780 "leftover bytes at end", ofpbuf_size(msg));
5781 return OFPERR_OFPBRC_BAD_LEN;
5785 ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh)
5787 const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh);
5789 return ntohl(cancel->id);
5793 ofputil_encode_flow_monitor_cancel(uint32_t id)
5795 struct nx_flow_monitor_cancel *nfmc;
5798 msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0);
5799 nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc);
5800 nfmc->id = htonl(id);
5805 ofputil_start_flow_update(struct list *replies)
5809 msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION,
5813 list_push_back(replies, &msg->list_node);
5817 ofputil_append_flow_update(const struct ofputil_flow_update *update,
5818 struct list *replies)
5820 enum ofp_version version = ofpmp_version(replies);
5821 struct nx_flow_update_header *nfuh;
5825 msg = ofpbuf_from_list(list_back(replies));
5826 start_ofs = ofpbuf_size(msg);
5828 if (update->event == NXFME_ABBREV) {
5829 struct nx_flow_update_abbrev *nfua;
5831 nfua = ofpbuf_put_zeros(msg, sizeof *nfua);
5832 nfua->xid = update->xid;
5834 struct nx_flow_update_full *nfuf;
5837 ofpbuf_put_zeros(msg, sizeof *nfuf);
5838 match_len = nx_put_match(msg, update->match, htonll(0), htonll(0));
5839 ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg,
5841 nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf);
5842 nfuf->reason = htons(update->reason);
5843 nfuf->priority = htons(update->priority);
5844 nfuf->idle_timeout = htons(update->idle_timeout);
5845 nfuf->hard_timeout = htons(update->hard_timeout);
5846 nfuf->match_len = htons(match_len);
5847 nfuf->table_id = update->table_id;
5848 nfuf->cookie = update->cookie;
5851 nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh);
5852 nfuh->length = htons(ofpbuf_size(msg) - start_ofs);
5853 nfuh->event = htons(update->event);
5855 ofpmp_postappend(replies, start_ofs);
5859 ofputil_encode_packet_out(const struct ofputil_packet_out *po,
5860 enum ofputil_protocol protocol)
5862 enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
5866 size = po->ofpacts_len;
5867 if (po->buffer_id == UINT32_MAX) {
5868 size += po->packet_len;
5871 switch (ofp_version) {
5872 case OFP10_VERSION: {
5873 struct ofp10_packet_out *opo;
5876 msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size);
5877 ofpbuf_put_zeros(msg, sizeof *opo);
5878 actions_ofs = ofpbuf_size(msg);
5879 ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
5882 opo = ofpbuf_l3(msg);
5883 opo->buffer_id = htonl(po->buffer_id);
5884 opo->in_port = htons(ofp_to_u16(po->in_port));
5885 opo->actions_len = htons(ofpbuf_size(msg) - actions_ofs);
5893 case OFP15_VERSION: {
5894 struct ofp11_packet_out *opo;
5897 msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size);
5898 ofpbuf_put_zeros(msg, sizeof *opo);
5899 len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
5901 opo = ofpbuf_l3(msg);
5902 opo->buffer_id = htonl(po->buffer_id);
5903 opo->in_port = ofputil_port_to_ofp11(po->in_port);
5904 opo->actions_len = htons(len);
5912 if (po->buffer_id == UINT32_MAX) {
5913 ofpbuf_put(msg, po->packet, po->packet_len);
5916 ofpmsg_update_length(msg);
5921 /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
5923 make_echo_request(enum ofp_version ofp_version)
5925 return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version,
5929 /* Creates and returns an OFPT_ECHO_REPLY message matching the
5930 * OFPT_ECHO_REQUEST message in 'rq'. */
5932 make_echo_reply(const struct ofp_header *rq)
5934 struct ofpbuf rq_buf;
5935 struct ofpbuf *reply;
5937 ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length));
5938 ofpraw_pull_assert(&rq_buf);
5940 reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, ofpbuf_size(&rq_buf));
5941 ofpbuf_put(reply, ofpbuf_data(&rq_buf), ofpbuf_size(&rq_buf));
5946 ofputil_encode_barrier_request(enum ofp_version ofp_version)
5950 switch (ofp_version) {
5956 type = OFPRAW_OFPT11_BARRIER_REQUEST;
5960 type = OFPRAW_OFPT10_BARRIER_REQUEST;
5967 return ofpraw_alloc(type, ofp_version, 0);
5971 ofputil_frag_handling_to_string(enum ofp_config_flags flags)
5973 switch (flags & OFPC_FRAG_MASK) {
5974 case OFPC_FRAG_NORMAL: return "normal";
5975 case OFPC_FRAG_DROP: return "drop";
5976 case OFPC_FRAG_REASM: return "reassemble";
5977 case OFPC_FRAG_NX_MATCH: return "nx-match";
5984 ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags)
5986 if (!strcasecmp(s, "normal")) {
5987 *flags = OFPC_FRAG_NORMAL;
5988 } else if (!strcasecmp(s, "drop")) {
5989 *flags = OFPC_FRAG_DROP;
5990 } else if (!strcasecmp(s, "reassemble")) {
5991 *flags = OFPC_FRAG_REASM;
5992 } else if (!strcasecmp(s, "nx-match")) {
5993 *flags = OFPC_FRAG_NX_MATCH;
6000 /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
6001 * port number and stores the latter in '*ofp10_port', for the purpose of
6002 * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
6003 * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'.
6005 * See the definition of OFP11_MAX for an explanation of the mapping. */
6007 ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port)
6009 uint32_t ofp11_port_h = ntohl(ofp11_port);
6011 if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) {
6012 *ofp10_port = u16_to_ofp(ofp11_port_h);
6014 } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) {
6015 *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET);
6018 *ofp10_port = OFPP_NONE;
6019 VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported "
6020 "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32,
6021 ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1,
6022 ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
6023 return OFPERR_OFPBAC_BAD_OUT_PORT;
6027 /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
6028 * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
6030 * See the definition of OFP11_MAX for an explanation of the mapping. */
6032 ofputil_port_to_ofp11(ofp_port_t ofp10_port)
6034 return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX)
6035 ? ofp_to_u16(ofp10_port)
6036 : ofp_to_u16(ofp10_port) + OFPP11_OFFSET);
6039 #define OFPUTIL_NAMED_PORTS \
6040 OFPUTIL_NAMED_PORT(IN_PORT) \
6041 OFPUTIL_NAMED_PORT(TABLE) \
6042 OFPUTIL_NAMED_PORT(NORMAL) \
6043 OFPUTIL_NAMED_PORT(FLOOD) \
6044 OFPUTIL_NAMED_PORT(ALL) \
6045 OFPUTIL_NAMED_PORT(CONTROLLER) \
6046 OFPUTIL_NAMED_PORT(LOCAL) \
6047 OFPUTIL_NAMED_PORT(ANY) \
6048 OFPUTIL_NAMED_PORT(UNSET)
6050 /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
6051 #define OFPUTIL_NAMED_PORTS_WITH_NONE \
6052 OFPUTIL_NAMED_PORTS \
6053 OFPUTIL_NAMED_PORT(NONE)
6055 /* Stores the port number represented by 's' into '*portp'. 's' may be an
6056 * integer or, for reserved ports, the standard OpenFlow name for the port
6059 * Returns true if successful, false if 's' is not a valid OpenFlow port number
6060 * or name. The caller should issue an error message in this case, because
6061 * this function usually does not. (This gives the caller an opportunity to
6062 * look up the port name another way, e.g. by contacting the switch and listing
6063 * the names of all its ports).
6065 * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
6066 * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
6067 * range as described in include/openflow/openflow-1.1.h. */
6069 ofputil_port_from_string(const char *s, ofp_port_t *portp)
6071 unsigned int port32; /* int is at least 32 bits wide. */
6074 VLOG_WARN("Negative value %s is not a valid port number.", s);
6078 if (str_to_uint(s, 10, &port32)) {
6079 if (port32 < ofp_to_u16(OFPP_MAX)) {
6081 } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) {
6082 VLOG_WARN("port %u is a reserved OF1.0 port number that will "
6083 "be translated to %u when talking to an OF1.1 or "
6084 "later controller", port32, port32 + OFPP11_OFFSET);
6085 } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) {
6086 char name[OFP_MAX_PORT_NAME_LEN];
6088 ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name);
6089 VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated "
6090 "for compatibility with OpenFlow 1.1 and later",
6092 } else if (port32 < ofp11_to_u32(OFPP11_MAX)) {
6093 VLOG_WARN("port %u is outside the supported range 0 through "
6094 "%"PRIx16" or 0x%x through 0x%"PRIx32, port32,
6095 UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
6098 port32 -= OFPP11_OFFSET;
6101 *portp = u16_to_ofp(port32);
6108 static const struct pair pairs[] = {
6109 #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
6110 OFPUTIL_NAMED_PORTS_WITH_NONE
6111 #undef OFPUTIL_NAMED_PORT
6113 const struct pair *p;
6115 for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) {
6116 if (!strcasecmp(s, p->name)) {
6125 /* Appends to 's' a string representation of the OpenFlow port number 'port'.
6126 * Most ports' string representation is just the port number, but for special
6127 * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
6129 ofputil_format_port(ofp_port_t port, struct ds *s)
6131 char name[OFP_MAX_PORT_NAME_LEN];
6133 ofputil_port_to_string(port, name, sizeof name);
6134 ds_put_cstr(s, name);
6137 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
6138 * representation of OpenFlow port number 'port'. Most ports are represented
6139 * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented
6140 * by name, e.g. "LOCAL". */
6142 ofputil_port_to_string(ofp_port_t port,
6143 char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize)
6146 #define OFPUTIL_NAMED_PORT(NAME) \
6148 ovs_strlcpy(namebuf, #NAME, bufsize); \
6151 #undef OFPUTIL_NAMED_PORT
6154 snprintf(namebuf, bufsize, "%"PRIu16, port);
6159 /* Stores the group id represented by 's' into '*group_idp'. 's' may be an
6160 * integer or, for reserved group IDs, the standard OpenFlow name for the group
6161 * (either "ANY" or "ALL").
6163 * Returns true if successful, false if 's' is not a valid OpenFlow group ID or
6166 ofputil_group_from_string(const char *s, uint32_t *group_idp)
6168 if (!strcasecmp(s, "any")) {
6169 *group_idp = OFPG11_ANY;
6170 } else if (!strcasecmp(s, "all")) {
6171 *group_idp = OFPG11_ALL;
6172 } else if (!str_to_uint(s, 10, group_idp)) {
6173 VLOG_WARN("%s is not a valid group ID. (Valid group IDs are "
6174 "32-bit nonnegative integers or the keywords ANY or "
6182 /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'.
6183 * Most groups' string representation is just the number, but for special
6184 * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */
6186 ofputil_format_group(uint32_t group_id, struct ds *s)
6188 char name[MAX_GROUP_NAME_LEN];
6190 ofputil_group_to_string(group_id, name, sizeof name);
6191 ds_put_cstr(s, name);
6195 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
6196 * representation of OpenFlow group ID 'group_id'. Most group are represented
6197 * as just their number, but special groups, e.g. OFPG11_ALL, are represented
6198 * by name, e.g. "ALL". */
6200 ofputil_group_to_string(uint32_t group_id,
6201 char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize)
6205 ovs_strlcpy(namebuf, "ALL", bufsize);
6209 ovs_strlcpy(namebuf, "ANY", bufsize);
6213 snprintf(namebuf, bufsize, "%"PRIu32, group_id);
6218 /* Given a buffer 'b' that contains an array of OpenFlow ports of type
6219 * 'ofp_version', tries to pull the first element from the array. If
6220 * successful, initializes '*pp' with an abstract representation of the
6221 * port and returns 0. If no ports remain to be decoded, returns EOF.
6222 * On an error, returns a positive OFPERR_* value. */
6224 ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b,
6225 struct ofputil_phy_port *pp)
6227 memset(pp, 0, sizeof *pp);
6229 switch (ofp_version) {
6230 case OFP10_VERSION: {
6231 const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp);
6232 return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF;
6236 case OFP13_VERSION: {
6237 const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op);
6238 return op ? ofputil_decode_ofp11_port(pp, op) : EOF;
6242 return ofpbuf_size(b) ? ofputil_pull_ofp14_port(pp, b) : EOF;
6249 ofputil_normalize_match__(struct match *match, bool may_log)
6252 MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */
6253 MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */
6254 MAY_NW_PROTO = 1 << 2, /* nw_proto */
6255 MAY_IPVx = 1 << 3, /* tos, frag, ttl */
6256 MAY_ARP_SHA = 1 << 4, /* arp_sha */
6257 MAY_ARP_THA = 1 << 5, /* arp_tha */
6258 MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */
6259 MAY_ND_TARGET = 1 << 7, /* nd_target */
6260 MAY_MPLS = 1 << 8, /* mpls label and tc */
6263 struct flow_wildcards wc;
6265 /* Figure out what fields may be matched. */
6266 if (match->flow.dl_type == htons(ETH_TYPE_IP)) {
6267 may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR;
6268 if (match->flow.nw_proto == IPPROTO_TCP ||
6269 match->flow.nw_proto == IPPROTO_UDP ||
6270 match->flow.nw_proto == IPPROTO_SCTP ||
6271 match->flow.nw_proto == IPPROTO_ICMP) {
6272 may_match |= MAY_TP_ADDR;
6274 } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) {
6275 may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6;
6276 if (match->flow.nw_proto == IPPROTO_TCP ||
6277 match->flow.nw_proto == IPPROTO_UDP ||
6278 match->flow.nw_proto == IPPROTO_SCTP) {
6279 may_match |= MAY_TP_ADDR;
6280 } else if (match->flow.nw_proto == IPPROTO_ICMPV6) {
6281 may_match |= MAY_TP_ADDR;
6282 if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) {
6283 may_match |= MAY_ND_TARGET | MAY_ARP_SHA;
6284 } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) {
6285 may_match |= MAY_ND_TARGET | MAY_ARP_THA;
6288 } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) ||
6289 match->flow.dl_type == htons(ETH_TYPE_RARP)) {
6290 may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA;
6291 } else if (eth_type_mpls(match->flow.dl_type)) {
6292 may_match = MAY_MPLS;
6297 /* Clear the fields that may not be matched. */
6299 if (!(may_match & MAY_NW_ADDR)) {
6300 wc.masks.nw_src = wc.masks.nw_dst = htonl(0);
6302 if (!(may_match & MAY_TP_ADDR)) {
6303 wc.masks.tp_src = wc.masks.tp_dst = htons(0);
6305 if (!(may_match & MAY_NW_PROTO)) {
6306 wc.masks.nw_proto = 0;
6308 if (!(may_match & MAY_IPVx)) {
6309 wc.masks.nw_tos = 0;
6310 wc.masks.nw_ttl = 0;
6312 if (!(may_match & MAY_ARP_SHA)) {
6313 memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN);
6315 if (!(may_match & MAY_ARP_THA)) {
6316 memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN);
6318 if (!(may_match & MAY_IPV6)) {
6319 wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any;
6320 wc.masks.ipv6_label = htonl(0);
6322 if (!(may_match & MAY_ND_TARGET)) {
6323 wc.masks.nd_target = in6addr_any;
6325 if (!(may_match & MAY_MPLS)) {
6326 memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse);
6329 /* Log any changes. */
6330 if (!flow_wildcards_equal(&wc, &match->wc)) {
6331 bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl);
6332 char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL;
6335 match_zero_wildcarded_fields(match);
6338 char *post = match_to_string(match, OFP_DEFAULT_PRIORITY);
6339 VLOG_INFO("normalization changed ofp_match, details:");
6340 VLOG_INFO(" pre: %s", pre);
6341 VLOG_INFO("post: %s", post);
6348 /* "Normalizes" the wildcards in 'match'. That means:
6350 * 1. If the type of level N is known, then only the valid fields for that
6351 * level may be specified. For example, ARP does not have a TOS field,
6352 * so nw_tos must be wildcarded if 'match' specifies an ARP flow.
6353 * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
6354 * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an
6357 * 2. If the type of level N is not known (or not understood by Open
6358 * vSwitch), then no fields at all for that level may be specified. For
6359 * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
6360 * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an
6363 * If this function changes 'match', it logs a rate-limited informational
6366 ofputil_normalize_match(struct match *match)
6368 ofputil_normalize_match__(match, true);
6371 /* Same as ofputil_normalize_match() without the logging. Thus, this function
6372 * is suitable for a program's internal use, whereas ofputil_normalize_match()
6373 * sense for use on flows received from elsewhere (so that a bug in the program
6374 * that sent them can be reported and corrected). */
6376 ofputil_normalize_match_quiet(struct match *match)
6378 ofputil_normalize_match__(match, false);
6381 /* Parses a key or a key-value pair from '*stringp'.
6383 * On success: Stores the key into '*keyp'. Stores the value, if present, into
6384 * '*valuep', otherwise an empty string. Advances '*stringp' past the end of
6385 * the key-value pair, preparing it for another call. '*keyp' and '*valuep'
6386 * are substrings of '*stringp' created by replacing some of its bytes by null
6387 * terminators. Returns true.
6389 * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to
6390 * NULL and returns false. */
6392 ofputil_parse_key_value(char **stringp, char **keyp, char **valuep)
6394 char *pos, *key, *value;
6398 pos += strspn(pos, ", \t\r\n");
6400 *keyp = *valuep = NULL;
6405 key_len = strcspn(pos, ":=(, \t\r\n");
6406 if (key[key_len] == ':' || key[key_len] == '=') {
6407 /* The value can be separated by a colon. */
6410 value = key + key_len + 1;
6411 value_len = strcspn(value, ", \t\r\n");
6412 pos = value + value_len + (value[value_len] != '\0');
6413 value[value_len] = '\0';
6414 } else if (key[key_len] == '(') {
6415 /* The value can be surrounded by balanced parentheses. The outermost
6416 * set of parentheses is removed. */
6420 value = key + key_len + 1;
6421 for (value_len = 0; level > 0; value_len++) {
6422 switch (value[value_len]) {
6436 value[value_len - 1] = '\0';
6437 pos = value + value_len;
6439 /* There might be no value at all. */
6440 value = key + key_len; /* Will become the empty string below. */
6441 pos = key + key_len + (key[key_len] != '\0');
6443 key[key_len] = '\0';
6451 /* Encode a dump ports request for 'port', the encoded message
6452 * will be for Open Flow version 'ofp_version'. Returns message
6453 * as a struct ofpbuf. Returns encoded message on success, NULL on error */
6455 ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port)
6457 struct ofpbuf *request;
6459 switch (ofp_version) {
6460 case OFP10_VERSION: {
6461 struct ofp10_port_stats_request *req;
6462 request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0);
6463 req = ofpbuf_put_zeros(request, sizeof *req);
6464 req->port_no = htons(ofp_to_u16(port));
6471 case OFP15_VERSION: {
6472 struct ofp11_port_stats_request *req;
6473 request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0);
6474 req = ofpbuf_put_zeros(request, sizeof *req);
6475 req->port_no = ofputil_port_to_ofp11(port);
6486 ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops,
6487 struct ofp10_port_stats *ps10)
6489 ps10->port_no = htons(ofp_to_u16(ops->port_no));
6490 memset(ps10->pad, 0, sizeof ps10->pad);
6491 put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets));
6492 put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets));
6493 put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes));
6494 put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes));
6495 put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped));
6496 put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped));
6497 put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors));
6498 put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors));
6499 put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors));
6500 put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors));
6501 put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors));
6502 put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions));
6506 ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops,
6507 struct ofp11_port_stats *ps11)
6509 ps11->port_no = ofputil_port_to_ofp11(ops->port_no);
6510 memset(ps11->pad, 0, sizeof ps11->pad);
6511 ps11->rx_packets = htonll(ops->stats.rx_packets);
6512 ps11->tx_packets = htonll(ops->stats.tx_packets);
6513 ps11->rx_bytes = htonll(ops->stats.rx_bytes);
6514 ps11->tx_bytes = htonll(ops->stats.tx_bytes);
6515 ps11->rx_dropped = htonll(ops->stats.rx_dropped);
6516 ps11->tx_dropped = htonll(ops->stats.tx_dropped);
6517 ps11->rx_errors = htonll(ops->stats.rx_errors);
6518 ps11->tx_errors = htonll(ops->stats.tx_errors);
6519 ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors);
6520 ps11->rx_over_err = htonll(ops->stats.rx_over_errors);
6521 ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors);
6522 ps11->collisions = htonll(ops->stats.collisions);
6526 ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops,
6527 struct ofp13_port_stats *ps13)
6529 ofputil_port_stats_to_ofp11(ops, &ps13->ps);
6530 ps13->duration_sec = htonl(ops->duration_sec);
6531 ps13->duration_nsec = htonl(ops->duration_nsec);
6535 ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops,
6536 struct list *replies)
6538 struct ofp14_port_stats_prop_ethernet *eth;
6539 struct ofp14_port_stats *ps14;
6540 struct ofpbuf *reply;
6542 reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth);
6544 ps14 = ofpbuf_put_uninit(reply, sizeof *ps14);
6545 ps14->length = htons(sizeof *ps14 + sizeof *eth);
6546 memset(ps14->pad, 0, sizeof ps14->pad);
6547 ps14->port_no = ofputil_port_to_ofp11(ops->port_no);
6548 ps14->duration_sec = htonl(ops->duration_sec);
6549 ps14->duration_nsec = htonl(ops->duration_nsec);
6550 ps14->rx_packets = htonll(ops->stats.rx_packets);
6551 ps14->tx_packets = htonll(ops->stats.tx_packets);
6552 ps14->rx_bytes = htonll(ops->stats.rx_bytes);
6553 ps14->tx_bytes = htonll(ops->stats.tx_bytes);
6554 ps14->rx_dropped = htonll(ops->stats.rx_dropped);
6555 ps14->tx_dropped = htonll(ops->stats.tx_dropped);
6556 ps14->rx_errors = htonll(ops->stats.rx_errors);
6557 ps14->tx_errors = htonll(ops->stats.tx_errors);
6559 eth = ofpbuf_put_uninit(reply, sizeof *eth);
6560 eth->type = htons(OFPPSPT14_ETHERNET);
6561 eth->length = htons(sizeof *eth);
6562 memset(eth->pad, 0, sizeof eth->pad);
6563 eth->rx_frame_err = htonll(ops->stats.rx_frame_errors);
6564 eth->rx_over_err = htonll(ops->stats.rx_over_errors);
6565 eth->rx_crc_err = htonll(ops->stats.rx_crc_errors);
6566 eth->collisions = htonll(ops->stats.collisions);
6569 /* Encode a ports stat for 'ops' and append it to 'replies'. */
6571 ofputil_append_port_stat(struct list *replies,
6572 const struct ofputil_port_stats *ops)
6574 switch (ofpmp_version(replies)) {
6575 case OFP13_VERSION: {
6576 struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply);
6577 ofputil_port_stats_to_ofp13(ops, reply);
6581 case OFP11_VERSION: {
6582 struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply);
6583 ofputil_port_stats_to_ofp11(ops, reply);
6587 case OFP10_VERSION: {
6588 struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply);
6589 ofputil_port_stats_to_ofp10(ops, reply);
6595 ofputil_append_ofp14_port_stats(ops, replies);
6604 ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops,
6605 const struct ofp10_port_stats *ps10)
6607 memset(ops, 0, sizeof *ops);
6609 ops->port_no = u16_to_ofp(ntohs(ps10->port_no));
6610 ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets));
6611 ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets));
6612 ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes));
6613 ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes));
6614 ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped));
6615 ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped));
6616 ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors));
6617 ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors));
6618 ops->stats.rx_frame_errors =
6619 ntohll(get_32aligned_be64(&ps10->rx_frame_err));
6620 ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err));
6621 ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err));
6622 ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions));
6623 ops->duration_sec = ops->duration_nsec = UINT32_MAX;
6629 ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops,
6630 const struct ofp11_port_stats *ps11)
6634 memset(ops, 0, sizeof *ops);
6635 error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no);
6640 ops->stats.rx_packets = ntohll(ps11->rx_packets);
6641 ops->stats.tx_packets = ntohll(ps11->tx_packets);
6642 ops->stats.rx_bytes = ntohll(ps11->rx_bytes);
6643 ops->stats.tx_bytes = ntohll(ps11->tx_bytes);
6644 ops->stats.rx_dropped = ntohll(ps11->rx_dropped);
6645 ops->stats.tx_dropped = ntohll(ps11->tx_dropped);
6646 ops->stats.rx_errors = ntohll(ps11->rx_errors);
6647 ops->stats.tx_errors = ntohll(ps11->tx_errors);
6648 ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err);
6649 ops->stats.rx_over_errors = ntohll(ps11->rx_over_err);
6650 ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err);
6651 ops->stats.collisions = ntohll(ps11->collisions);
6652 ops->duration_sec = ops->duration_nsec = UINT32_MAX;
6658 ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops,
6659 const struct ofp13_port_stats *ps13)
6661 enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps);
6663 ops->duration_sec = ntohl(ps13->duration_sec);
6664 ops->duration_nsec = ntohl(ps13->duration_nsec);
6670 parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload,
6671 struct ofputil_port_stats *ops)
6673 const struct ofp14_port_stats_prop_ethernet *eth = ofpbuf_data(payload);
6675 if (ofpbuf_size(payload) != sizeof *eth) {
6676 return OFPERR_OFPBPC_BAD_LEN;
6679 ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err);
6680 ops->stats.rx_over_errors = ntohll(eth->rx_over_err);
6681 ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err);
6682 ops->stats.collisions = ntohll(eth->collisions);
6688 ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops,
6691 const struct ofp14_port_stats *ps14;
6692 struct ofpbuf properties;
6696 ps14 = ofpbuf_try_pull(msg, sizeof *ps14);
6698 return OFPERR_OFPBRC_BAD_LEN;
6701 len = ntohs(ps14->length);
6702 if (len < sizeof *ps14 || len - sizeof *ps14 > ofpbuf_size(msg)) {
6703 return OFPERR_OFPBRC_BAD_LEN;
6705 len -= sizeof *ps14;
6706 ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len);
6708 error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no);
6713 ops->duration_sec = ntohl(ps14->duration_sec);
6714 ops->duration_nsec = ntohl(ps14->duration_nsec);
6715 ops->stats.rx_packets = ntohll(ps14->rx_packets);
6716 ops->stats.tx_packets = ntohll(ps14->tx_packets);
6717 ops->stats.rx_bytes = ntohll(ps14->rx_bytes);
6718 ops->stats.tx_bytes = ntohll(ps14->tx_bytes);
6719 ops->stats.rx_dropped = ntohll(ps14->rx_dropped);
6720 ops->stats.tx_dropped = ntohll(ps14->tx_dropped);
6721 ops->stats.rx_errors = ntohll(ps14->rx_errors);
6722 ops->stats.tx_errors = ntohll(ps14->tx_errors);
6723 ops->stats.rx_frame_errors = UINT64_MAX;
6724 ops->stats.rx_over_errors = UINT64_MAX;
6725 ops->stats.rx_crc_errors = UINT64_MAX;
6726 ops->stats.collisions = UINT64_MAX;
6728 while (ofpbuf_size(&properties) > 0) {
6729 struct ofpbuf payload;
6733 error = ofputil_pull_property(&properties, &payload, &type);
6739 case OFPPSPT14_ETHERNET:
6740 error = parse_ofp14_port_stats_ethernet_property(&payload, ops);
6744 log_property(true, "unknown port stats property %"PRIu16, type);
6757 /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
6760 ofputil_count_port_stats(const struct ofp_header *oh)
6762 struct ofputil_port_stats ps;
6766 ofpbuf_use_const(&b, oh, ntohs(oh->length));
6767 ofpraw_pull_assert(&b);
6768 while (!ofputil_decode_port_stats(&ps, &b)) {
6774 /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
6775 * ofputil_port_stats in 'ps'.
6777 * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
6778 * message. Calling this function multiple times for a single 'msg' iterates
6779 * through the replies. The caller must initially leave 'msg''s layer pointers
6780 * null and not modify them between calls.
6782 * Returns 0 if successful, EOF if no replies were left in this 'msg',
6783 * otherwise a positive errno value. */
6785 ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg)
6791 ? ofpraw_decode(&raw, msg->frame)
6792 : ofpraw_pull(&raw, msg));
6797 if (!ofpbuf_size(msg)) {
6799 } else if (raw == OFPRAW_OFPST14_PORT_REPLY) {
6800 return ofputil_pull_ofp14_port_stats(ps, msg);
6801 } else if (raw == OFPRAW_OFPST13_PORT_REPLY) {
6802 const struct ofp13_port_stats *ps13;
6804 ps13 = ofpbuf_try_pull(msg, sizeof *ps13);
6808 return ofputil_port_stats_from_ofp13(ps, ps13);
6809 } else if (raw == OFPRAW_OFPST11_PORT_REPLY) {
6810 const struct ofp11_port_stats *ps11;
6812 ps11 = ofpbuf_try_pull(msg, sizeof *ps11);
6816 return ofputil_port_stats_from_ofp11(ps, ps11);
6817 } else if (raw == OFPRAW_OFPST10_PORT_REPLY) {
6818 const struct ofp10_port_stats *ps10;
6820 ps10 = ofpbuf_try_pull(msg, sizeof *ps10);
6824 return ofputil_port_stats_from_ofp10(ps, ps10);
6830 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover "
6831 "bytes at end", ofpbuf_size(msg));
6832 return OFPERR_OFPBRC_BAD_LEN;
6835 /* Parse a port status request message into a 16 bit OpenFlow 1.0
6836 * port number and stores the latter in '*ofp10_port'.
6837 * Returns 0 if successful, otherwise an OFPERR_* number. */
6839 ofputil_decode_port_stats_request(const struct ofp_header *request,
6840 ofp_port_t *ofp10_port)
6842 switch ((enum ofp_version)request->version) {
6847 case OFP11_VERSION: {
6848 const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request);
6849 return ofputil_port_from_ofp11(psr11->port_no, ofp10_port);
6852 case OFP10_VERSION: {
6853 const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request);
6854 *ofp10_port = u16_to_ofp(ntohs(psr10->port_no));
6863 /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */
6865 ofputil_bucket_list_destroy(struct list *buckets)
6867 struct ofputil_bucket *bucket, *next_bucket;
6869 LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) {
6870 list_remove(&bucket->list_node);
6871 free(bucket->ofpacts);
6876 /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version',
6877 * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats
6880 * Group statistics include packet and byte counts for each group. */
6882 ofputil_encode_group_stats_request(enum ofp_version ofp_version,
6885 struct ofpbuf *request;
6887 switch (ofp_version) {
6889 ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later "
6890 "(\'-O OpenFlow11\')");
6895 case OFP15_VERSION: {
6896 struct ofp11_group_stats_request *req;
6897 request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0);
6898 req = ofpbuf_put_zeros(request, sizeof *req);
6899 req->group_id = htonl(group_id);
6909 /* Decodes the OpenFlow group description request in 'oh', returning the group
6910 * whose description is requested, or OFPG_ALL if stats for all groups was
6913 ofputil_decode_group_desc_request(const struct ofp_header *oh)
6915 struct ofpbuf request;
6918 ofpbuf_use_const(&request, oh, ntohs(oh->length));
6919 raw = ofpraw_pull_assert(&request);
6920 if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) {
6922 } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) {
6923 ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id);
6924 return ntohl(*group_id);
6930 /* Returns an OpenFlow group description request for OpenFlow version
6931 * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to
6932 * request stats for all groups (OpenFlow 1.4 and earlier always request all
6935 * Group descriptions include the bucket and action configuration for each
6938 ofputil_encode_group_desc_request(enum ofp_version ofp_version,
6941 struct ofpbuf *request;
6944 switch (ofp_version) {
6946 ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later "
6947 "(\'-O OpenFlow11\')");
6952 request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST,
6956 request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST,
6958 gid = htonl(group_id);
6959 ofpbuf_put(request, &gid, sizeof gid);
6969 ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs,
6970 struct ofp11_bucket_counter bucket_cnts[])
6974 for (i = 0; i < gs->n_buckets; i++) {
6975 bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count);
6976 bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count);
6981 ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs,
6982 struct ofp11_group_stats *gs11, size_t length,
6983 struct ofp11_bucket_counter bucket_cnts[])
6985 memset(gs11, 0, sizeof *gs11);
6986 gs11->length = htons(length);
6987 gs11->group_id = htonl(gs->group_id);
6988 gs11->ref_count = htonl(gs->ref_count);
6989 gs11->packet_count = htonll(gs->packet_count);
6990 gs11->byte_count = htonll(gs->byte_count);
6991 ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts);
6995 ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs,
6996 struct ofp13_group_stats *gs13, size_t length,
6997 struct ofp11_bucket_counter bucket_cnts[])
6999 ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts);
7000 gs13->duration_sec = htonl(gs->duration_sec);
7001 gs13->duration_nsec = htonl(gs->duration_nsec);
7005 /* Encodes 'gs' properly for the format of the list of group statistics
7006 * replies already begun in 'replies' and appends it to the list. 'replies'
7007 * must have originally been initialized with ofpmp_init(). */
7009 ofputil_append_group_stats(struct list *replies,
7010 const struct ofputil_group_stats *gs)
7012 size_t bucket_counter_size;
7013 struct ofp11_bucket_counter *bucket_counters;
7016 bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter);
7018 switch (ofpmp_version(replies)) {
7020 case OFP12_VERSION:{
7021 struct ofp11_group_stats *gs11;
7023 length = sizeof *gs11 + bucket_counter_size;
7024 gs11 = ofpmp_append(replies, length);
7025 bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1);
7026 ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters);
7032 case OFP15_VERSION: {
7033 struct ofp13_group_stats *gs13;
7035 length = sizeof *gs13 + bucket_counter_size;
7036 gs13 = ofpmp_append(replies, length);
7037 bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1);
7038 ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters);
7047 /* Returns an OpenFlow group features request for OpenFlow version
7050 ofputil_encode_group_features_request(enum ofp_version ofp_version)
7052 struct ofpbuf *request = NULL;
7054 switch (ofp_version) {
7057 ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later "
7058 "(\'-O OpenFlow12\')");
7063 request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST,
7073 /* Returns a OpenFlow message that encodes 'features' properly as a reply to
7074 * group features request 'request'. */
7076 ofputil_encode_group_features_reply(
7077 const struct ofputil_group_features *features,
7078 const struct ofp_header *request)
7080 struct ofp12_group_features_stats *ogf;
7081 struct ofpbuf *reply;
7084 reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY,
7085 request->version, request->xid, 0);
7086 ogf = ofpbuf_put_zeros(reply, sizeof *ogf);
7087 ogf->types = htonl(features->types);
7088 ogf->capabilities = htonl(features->capabilities);
7089 for (i = 0; i < OFPGT12_N_TYPES; i++) {
7090 ogf->max_groups[i] = htonl(features->max_groups[i]);
7091 ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i],
7098 /* Decodes group features reply 'oh' into 'features'. */
7100 ofputil_decode_group_features_reply(const struct ofp_header *oh,
7101 struct ofputil_group_features *features)
7103 const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh);
7106 features->types = ntohl(ogf->types);
7107 features->capabilities = ntohl(ogf->capabilities);
7108 for (i = 0; i < OFPGT12_N_TYPES; i++) {
7109 features->max_groups[i] = ntohl(ogf->max_groups[i]);
7110 features->ofpacts[i] = ofpact_bitmap_from_openflow(
7111 ogf->actions[i], oh->version);
7115 /* Parse a group status request message into a 32 bit OpenFlow 1.1
7116 * group ID and stores the latter in '*group_id'.
7117 * Returns 0 if successful, otherwise an OFPERR_* number. */
7119 ofputil_decode_group_stats_request(const struct ofp_header *request,
7122 const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request);
7123 *group_id = ntohl(gsr11->group_id);
7127 /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats
7128 * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the
7129 * caller to eventually free.
7131 * Multiple group stats replies can be packed into a single OpenFlow message.
7132 * Calling this function multiple times for a single 'msg' iterates through the
7133 * replies. The caller must initially leave 'msg''s layer pointers null and
7134 * not modify them between calls.
7136 * Returns 0 if successful, EOF if no replies were left in this 'msg',
7137 * otherwise a positive errno value. */
7139 ofputil_decode_group_stats_reply(struct ofpbuf *msg,
7140 struct ofputil_group_stats *gs)
7142 struct ofp11_bucket_counter *obc;
7143 struct ofp11_group_stats *ogs11;
7150 gs->bucket_stats = NULL;
7152 ? ofpraw_decode(&raw, msg->frame)
7153 : ofpraw_pull(&raw, msg));
7158 if (!ofpbuf_size(msg)) {
7162 if (raw == OFPRAW_OFPST11_GROUP_REPLY) {
7163 base_len = sizeof *ogs11;
7164 ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11);
7165 gs->duration_sec = gs->duration_nsec = UINT32_MAX;
7166 } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) {
7167 struct ofp13_group_stats *ogs13;
7169 base_len = sizeof *ogs13;
7170 ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13);
7173 gs->duration_sec = ntohl(ogs13->duration_sec);
7174 gs->duration_nsec = ntohl(ogs13->duration_nsec);
7183 VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end",
7184 ofpraw_get_name(raw), ofpbuf_size(msg));
7185 return OFPERR_OFPBRC_BAD_LEN;
7187 length = ntohs(ogs11->length);
7188 if (length < sizeof base_len) {
7189 VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE,
7190 ofpraw_get_name(raw), length);
7191 return OFPERR_OFPBRC_BAD_LEN;
7194 gs->group_id = ntohl(ogs11->group_id);
7195 gs->ref_count = ntohl(ogs11->ref_count);
7196 gs->packet_count = ntohll(ogs11->packet_count);
7197 gs->byte_count = ntohll(ogs11->byte_count);
7199 gs->n_buckets = (length - base_len) / sizeof *obc;
7200 obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc);
7202 VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end",
7203 ofpraw_get_name(raw), ofpbuf_size(msg));
7204 return OFPERR_OFPBRC_BAD_LEN;
7207 gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats);
7208 for (i = 0; i < gs->n_buckets; i++) {
7209 gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count);
7210 gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count);
7217 ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket,
7218 struct ofpbuf *openflow, enum ofp_version ofp_version)
7220 struct ofp11_bucket *ob;
7223 start = ofpbuf_size(openflow);
7224 ofpbuf_put_zeros(openflow, sizeof *ob);
7225 ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len,
7226 openflow, ofp_version);
7227 ob = ofpbuf_at_assert(openflow, start, sizeof *ob);
7228 ob->len = htons(ofpbuf_size(openflow) - start);
7229 ob->weight = htons(bucket->weight);
7230 ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port);
7231 ob->watch_group = htonl(bucket->watch_group);
7234 /* Appends a group stats reply that contains the data in 'gds' to those already
7235 * present in the list of ofpbufs in 'replies'. 'replies' should have been
7236 * initialized with ofpmp_init(). */
7238 ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
7239 struct list *buckets,
7240 struct list *replies)
7242 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
7243 enum ofp_version version = ofpmp_version(replies);
7244 struct ofp11_group_desc_stats *ogds;
7245 struct ofputil_bucket *bucket;
7248 start_ogds = ofpbuf_size(reply);
7249 ofpbuf_put_zeros(reply, sizeof *ogds);
7250 LIST_FOR_EACH (bucket, list_node, buckets) {
7251 ofputil_put_ofp11_bucket(bucket, reply, version);
7253 ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds);
7254 ogds->length = htons(ofpbuf_size(reply) - start_ogds);
7255 ogds->type = gds->type;
7256 ogds->group_id = htonl(gds->group_id);
7258 ofpmp_postappend(replies, start_ogds);
7262 ofputil_pull_buckets(struct ofpbuf *msg, size_t buckets_length,
7263 enum ofp_version version, struct list *buckets)
7265 struct ofp11_bucket *ob;
7268 while (buckets_length > 0) {
7269 struct ofputil_bucket *bucket;
7270 struct ofpbuf ofpacts;
7274 ob = (buckets_length >= sizeof *ob
7275 ? ofpbuf_try_pull(msg, sizeof *ob)
7278 VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes",
7280 return OFPERR_OFPGMFC_BAD_BUCKET;
7283 ob_len = ntohs(ob->len);
7284 if (ob_len < sizeof *ob) {
7285 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
7286 "%"PRIuSIZE" is not valid", ob_len);
7287 return OFPERR_OFPGMFC_BAD_BUCKET;
7288 } else if (ob_len > buckets_length) {
7289 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
7290 "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE,
7291 ob_len, buckets_length);
7292 return OFPERR_OFPGMFC_BAD_BUCKET;
7294 buckets_length -= ob_len;
7296 ofpbuf_init(&ofpacts, 0);
7297 error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob,
7300 ofpbuf_uninit(&ofpacts);
7301 ofputil_bucket_list_destroy(buckets);
7305 bucket = xzalloc(sizeof *bucket);
7306 bucket->weight = ntohs(ob->weight);
7307 error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port);
7309 ofpbuf_uninit(&ofpacts);
7310 ofputil_bucket_list_destroy(buckets);
7311 return OFPERR_OFPGMFC_BAD_WATCH;
7313 bucket->watch_group = ntohl(ob->watch_group);
7314 bucket->ofpacts = ofpbuf_steal_data(&ofpacts);
7315 bucket->ofpacts_len = ofpbuf_size(&ofpacts);
7316 list_push_back(buckets, &bucket->list_node);
7322 /* Converts a group description reply in 'msg' into an abstract
7323 * ofputil_group_desc in 'gd'.
7325 * Multiple group description replies can be packed into a single OpenFlow
7326 * message. Calling this function multiple times for a single 'msg' iterates
7327 * through the replies. The caller must initially leave 'msg''s layer pointers
7328 * null and not modify them between calls.
7330 * Returns 0 if successful, EOF if no replies were left in this 'msg',
7331 * otherwise a positive errno value. */
7333 ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
7334 struct ofpbuf *msg, enum ofp_version version)
7336 struct ofp11_group_desc_stats *ogds;
7340 ofpraw_pull_assert(msg);
7343 if (!ofpbuf_size(msg)) {
7347 ogds = ofpbuf_try_pull(msg, sizeof *ogds);
7349 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" "
7350 "leftover bytes at end", ofpbuf_size(msg));
7351 return OFPERR_OFPBRC_BAD_LEN;
7353 gd->type = ogds->type;
7354 gd->group_id = ntohl(ogds->group_id);
7356 length = ntohs(ogds->length);
7357 if (length < sizeof *ogds || length - sizeof *ogds > ofpbuf_size(msg)) {
7358 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid "
7359 "length %"PRIuSIZE, length);
7360 return OFPERR_OFPBRC_BAD_LEN;
7363 return ofputil_pull_buckets(msg, length - sizeof *ogds, version,
7367 static struct ofpbuf *
7368 ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version,
7369 const struct ofputil_group_mod *gm)
7372 struct ofp11_group_mod *ogm;
7374 struct ofputil_bucket *bucket;
7376 b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0);
7377 start_ogm = ofpbuf_size(b);
7378 ofpbuf_put_zeros(b, sizeof *ogm);
7380 LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
7381 ofputil_put_ofp11_bucket(bucket, b, ofp_version);
7383 ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm);
7384 ogm->command = htons(gm->command);
7385 ogm->type = gm->type;
7386 ogm->group_id = htonl(gm->group_id);
7391 /* Converts abstract group mod 'gm' into a message for OpenFlow version
7392 * 'ofp_version' and returns the message. */
7394 ofputil_encode_group_mod(enum ofp_version ofp_version,
7395 const struct ofputil_group_mod *gm)
7397 switch (ofp_version) {
7398 case OFP10_VERSION: {
7399 if (gm->command == OFPGC11_ADD) {
7400 ovs_fatal(0, "add-group needs OpenFlow 1.1 or later "
7401 "(\'-O OpenFlow11\')");
7402 } else if (gm->command == OFPGC11_MODIFY) {
7403 ovs_fatal(0, "mod-group needs OpenFlow 1.1 or later "
7404 "(\'-O OpenFlow11\')");
7406 ovs_fatal(0, "del-groups needs OpenFlow 1.1 or later "
7407 "(\'-O OpenFlow11\')");
7416 return ofputil_encode_ofp11_group_mod(ofp_version, gm);
7423 /* Converts OpenFlow group mod message 'oh' into an abstract group mod in
7424 * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */
7426 ofputil_decode_group_mod(const struct ofp_header *oh,
7427 struct ofputil_group_mod *gm)
7429 const struct ofp11_group_mod *ogm;
7431 struct ofputil_bucket *bucket;
7434 ofpbuf_use_const(&msg, oh, ntohs(oh->length));
7435 ofpraw_pull_assert(&msg);
7437 ogm = ofpbuf_pull(&msg, sizeof *ogm);
7438 gm->command = ntohs(ogm->command);
7439 gm->type = ogm->type;
7440 gm->group_id = ntohl(ogm->group_id);
7442 err = ofputil_pull_buckets(&msg, ofpbuf_size(&msg), oh->version, &gm->buckets);
7448 case OFPGT11_INDIRECT:
7449 if (!list_is_singleton(&gm->buckets)) {
7450 return OFPERR_OFPGMFC_INVALID_GROUP;
7454 case OFPGT11_SELECT:
7461 LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
7464 case OFPGT11_INDIRECT:
7465 if (ofputil_bucket_has_liveness(bucket)) {
7466 return OFPERR_OFPGMFC_WATCH_UNSUPPORTED;
7469 case OFPGT11_SELECT:
7472 if (!ofputil_bucket_has_liveness(bucket)) {
7473 return OFPERR_OFPGMFC_INVALID_GROUP;
7484 /* Parse a queue status request message into 'oqsr'.
7485 * Returns 0 if successful, otherwise an OFPERR_* number. */
7487 ofputil_decode_queue_stats_request(const struct ofp_header *request,
7488 struct ofputil_queue_stats_request *oqsr)
7490 switch ((enum ofp_version)request->version) {
7495 case OFP11_VERSION: {
7496 const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request);
7497 oqsr->queue_id = ntohl(qsr11->queue_id);
7498 return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no);
7501 case OFP10_VERSION: {
7502 const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request);
7503 oqsr->queue_id = ntohl(qsr10->queue_id);
7504 oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no));
7505 /* OF 1.0 uses OFPP_ALL for OFPP_ANY */
7506 if (oqsr->port_no == OFPP_ALL) {
7507 oqsr->port_no = OFPP_ANY;
7517 /* Encode a queue statsrequest for 'oqsr', the encoded message
7518 * will be fore Open Flow version 'ofp_version'. Returns message
7519 * as a struct ofpbuf. Returns encoded message on success, NULL on error */
7521 ofputil_encode_queue_stats_request(enum ofp_version ofp_version,
7522 const struct ofputil_queue_stats_request *oqsr)
7524 struct ofpbuf *request;
7526 switch (ofp_version) {
7531 case OFP15_VERSION: {
7532 struct ofp11_queue_stats_request *req;
7533 request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0);
7534 req = ofpbuf_put_zeros(request, sizeof *req);
7535 req->port_no = ofputil_port_to_ofp11(oqsr->port_no);
7536 req->queue_id = htonl(oqsr->queue_id);
7539 case OFP10_VERSION: {
7540 struct ofp10_queue_stats_request *req;
7541 request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0);
7542 req = ofpbuf_put_zeros(request, sizeof *req);
7543 /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */
7544 req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY
7545 ? OFPP_ALL : oqsr->port_no));
7546 req->queue_id = htonl(oqsr->queue_id);
7556 /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY
7559 ofputil_count_queue_stats(const struct ofp_header *oh)
7561 struct ofputil_queue_stats qs;
7565 ofpbuf_use_const(&b, oh, ntohs(oh->length));
7566 ofpraw_pull_assert(&b);
7567 while (!ofputil_decode_queue_stats(&qs, &b)) {
7574 ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs,
7575 const struct ofp10_queue_stats *qs10)
7577 oqs->port_no = u16_to_ofp(ntohs(qs10->port_no));
7578 oqs->queue_id = ntohl(qs10->queue_id);
7579 oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes));
7580 oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets));
7581 oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors));
7582 oqs->duration_sec = oqs->duration_nsec = UINT32_MAX;
7588 ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs,
7589 const struct ofp11_queue_stats *qs11)
7593 error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no);
7598 oqs->queue_id = ntohl(qs11->queue_id);
7599 oqs->tx_bytes = ntohll(qs11->tx_bytes);
7600 oqs->tx_packets = ntohll(qs11->tx_packets);
7601 oqs->tx_errors = ntohll(qs11->tx_errors);
7602 oqs->duration_sec = oqs->duration_nsec = UINT32_MAX;
7608 ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs,
7609 const struct ofp13_queue_stats *qs13)
7611 enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs);
7613 oqs->duration_sec = ntohl(qs13->duration_sec);
7614 oqs->duration_nsec = ntohl(qs13->duration_nsec);
7621 ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs,
7624 const struct ofp14_queue_stats *qs14;
7627 qs14 = ofpbuf_try_pull(msg, sizeof *qs14);
7629 return OFPERR_OFPBRC_BAD_LEN;
7632 len = ntohs(qs14->length);
7633 if (len < sizeof *qs14 || len - sizeof *qs14 > ofpbuf_size(msg)) {
7634 return OFPERR_OFPBRC_BAD_LEN;
7636 ofpbuf_pull(msg, len - sizeof *qs14);
7638 /* No properties yet defined, so ignore them for now. */
7640 return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs);
7643 /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract
7644 * ofputil_queue_stats in 'qs'.
7646 * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow
7647 * message. Calling this function multiple times for a single 'msg' iterates
7648 * through the replies. The caller must initially leave 'msg''s layer pointers
7649 * null and not modify them between calls.
7651 * Returns 0 if successful, EOF if no replies were left in this 'msg',
7652 * otherwise a positive errno value. */
7654 ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg)
7660 ? ofpraw_decode(&raw, msg->frame)
7661 : ofpraw_pull(&raw, msg));
7666 if (!ofpbuf_size(msg)) {
7668 } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) {
7669 return ofputil_pull_ofp14_queue_stats(qs, msg);
7670 } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) {
7671 const struct ofp13_queue_stats *qs13;
7673 qs13 = ofpbuf_try_pull(msg, sizeof *qs13);
7677 return ofputil_queue_stats_from_ofp13(qs, qs13);
7678 } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) {
7679 const struct ofp11_queue_stats *qs11;
7681 qs11 = ofpbuf_try_pull(msg, sizeof *qs11);
7685 return ofputil_queue_stats_from_ofp11(qs, qs11);
7686 } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) {
7687 const struct ofp10_queue_stats *qs10;
7689 qs10 = ofpbuf_try_pull(msg, sizeof *qs10);
7693 return ofputil_queue_stats_from_ofp10(qs, qs10);
7699 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover "
7700 "bytes at end", ofpbuf_size(msg));
7701 return OFPERR_OFPBRC_BAD_LEN;
7705 ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs,
7706 struct ofp10_queue_stats *qs10)
7708 qs10->port_no = htons(ofp_to_u16(oqs->port_no));
7709 memset(qs10->pad, 0, sizeof qs10->pad);
7710 qs10->queue_id = htonl(oqs->queue_id);
7711 put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes));
7712 put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets));
7713 put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors));
7717 ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs,
7718 struct ofp11_queue_stats *qs11)
7720 qs11->port_no = ofputil_port_to_ofp11(oqs->port_no);
7721 qs11->queue_id = htonl(oqs->queue_id);
7722 qs11->tx_bytes = htonll(oqs->tx_bytes);
7723 qs11->tx_packets = htonll(oqs->tx_packets);
7724 qs11->tx_errors = htonll(oqs->tx_errors);
7728 ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs,
7729 struct ofp13_queue_stats *qs13)
7731 ofputil_queue_stats_to_ofp11(oqs, &qs13->qs);
7732 if (oqs->duration_sec != UINT32_MAX) {
7733 qs13->duration_sec = htonl(oqs->duration_sec);
7734 qs13->duration_nsec = htonl(oqs->duration_nsec);
7736 qs13->duration_sec = OVS_BE32_MAX;
7737 qs13->duration_nsec = OVS_BE32_MAX;
7742 ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs,
7743 struct ofp14_queue_stats *qs14)
7745 qs14->length = htons(sizeof *qs14);
7746 memset(qs14->pad, 0, sizeof qs14->pad);
7747 ofputil_queue_stats_to_ofp13(oqs, &qs14->qs);
7751 /* Encode a queue stat for 'oqs' and append it to 'replies'. */
7753 ofputil_append_queue_stat(struct list *replies,
7754 const struct ofputil_queue_stats *oqs)
7756 switch (ofpmp_version(replies)) {
7757 case OFP13_VERSION: {
7758 struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
7759 ofputil_queue_stats_to_ofp13(oqs, reply);
7764 case OFP11_VERSION: {
7765 struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
7766 ofputil_queue_stats_to_ofp11(oqs, reply);
7770 case OFP10_VERSION: {
7771 struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
7772 ofputil_queue_stats_to_ofp10(oqs, reply);
7777 case OFP15_VERSION: {
7778 struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
7779 ofputil_queue_stats_to_ofp14(oqs, reply);
7789 ofputil_decode_bundle_ctrl(const struct ofp_header *oh,
7790 struct ofputil_bundle_ctrl_msg *msg)
7794 const struct ofp14_bundle_ctrl_msg *m;
7796 ofpbuf_use_const(&b, oh, ntohs(oh->length));
7797 raw = ofpraw_pull_assert(&b);
7798 ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL);
7801 msg->bundle_id = ntohl(m->bundle_id);
7802 msg->type = ntohs(m->type);
7803 msg->flags = ntohs(m->flags);
7809 ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh,
7810 struct ofputil_bundle_ctrl_msg *msg)
7813 struct ofp14_bundle_ctrl_msg *m;
7815 buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0);
7816 m = ofpbuf_put_zeros(buf, sizeof *m);
7818 m->bundle_id = htonl(msg->bundle_id);
7819 m->type = htons(msg->type);
7820 m->flags = htons(msg->flags);
7826 ofputil_decode_bundle_add(const struct ofp_header *oh,
7827 struct ofputil_bundle_add_msg *msg)
7829 const struct ofp14_bundle_ctrl_msg *m;
7834 ofpbuf_use_const(&b, oh, ntohs(oh->length));
7835 raw = ofpraw_pull_assert(&b);
7836 ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE);
7838 m = ofpbuf_pull(&b, sizeof *m);
7839 msg->bundle_id = ntohl(m->bundle_id);
7840 msg->flags = ntohs(m->flags);
7842 msg->msg = ofpbuf_data(&b);
7843 inner_len = ntohs(msg->msg->length);
7844 if (inner_len < sizeof(struct ofp_header) || inner_len > ofpbuf_size(&b)) {
7845 return OFPERR_OFPBFC_MSG_BAD_LEN;
7852 ofputil_encode_bundle_add(enum ofp_version ofp_version,
7853 struct ofputil_bundle_add_msg *msg)
7855 struct ofpbuf *request;
7856 struct ofp14_bundle_ctrl_msg *m;
7858 request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, 0);
7859 m = ofpbuf_put_zeros(request, sizeof *m);
7861 m->bundle_id = htonl(msg->bundle_id);
7862 m->flags = htons(msg->flags);
7863 ofpbuf_put(request, msg->msg, ntohs(msg->msg->length));