2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 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"
36 #include "ofp-actions.h"
37 #include "ofp-errors.h"
43 #include "unaligned.h"
44 #include "type-props.h"
45 #include "openvswitch/vlog.h"
48 VLOG_DEFINE_THIS_MODULE(ofp_util);
50 /* Rate limit for OpenFlow message parse errors. These always indicate a bug
51 * in the peer and so there's not much point in showing a lot of them. */
52 static struct vlog_rate_limit bad_ofmsg_rl = VLOG_RATE_LIMIT_INIT(1, 5);
54 static enum ofputil_table_miss ofputil_table_miss_from_config(
55 ovs_be32 config_, enum ofp_version);
57 struct ofp_prop_header {
62 /* Pulls a property, beginning with struct ofp_prop_header, from the beginning
63 * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is
64 * nonnull, the entire property, including the header, in '*property'. Returns
65 * 0 if successful, otherwise an error code.
67 * This function pulls the property's stated size padded out to a multiple of
68 * 'alignment' bytes. The common case in OpenFlow is an 'alignment' of 8, so
69 * you can use ofputil_pull_property() for that case. */
71 ofputil_pull_property__(struct ofpbuf *msg, struct ofpbuf *property,
72 unsigned int alignment, uint16_t *typep)
74 struct ofp_prop_header *oph;
75 unsigned int padded_len;
78 if (msg->size < sizeof *oph) {
79 return OFPERR_OFPBPC_BAD_LEN;
83 len = ntohs(oph->len);
84 padded_len = ROUND_UP(len, alignment);
85 if (len < sizeof *oph || padded_len > msg->size) {
86 return OFPERR_OFPBPC_BAD_LEN;
89 *typep = ntohs(oph->type);
91 ofpbuf_use_const(property, msg->data, len);
93 ofpbuf_pull(msg, padded_len);
97 /* Pulls a property, beginning with struct ofp_prop_header, from the beginning
98 * of 'msg'. Stores the type of the property in '*typep' and, if 'property' is
99 * nonnull, the entire property, including the header, in '*property'. Returns
100 * 0 if successful, otherwise an error code.
102 * This function pulls the property's stated size padded out to a multiple of
103 * 8 bytes, which is the common case for OpenFlow properties. */
105 ofputil_pull_property(struct ofpbuf *msg, struct ofpbuf *property,
108 return ofputil_pull_property__(msg, property, 8, typep);
111 static void OVS_PRINTF_FORMAT(2, 3)
112 log_property(bool loose, const char *message, ...)
114 enum vlog_level level = loose ? VLL_DBG : VLL_WARN;
115 if (!vlog_should_drop(THIS_MODULE, level, &bad_ofmsg_rl)) {
118 va_start(args, message);
119 vlog_valist(THIS_MODULE, level, message, args);
125 start_property(struct ofpbuf *msg, uint16_t type)
127 size_t start_ofs = msg->size;
128 struct ofp_prop_header *oph;
130 oph = ofpbuf_put_uninit(msg, sizeof *oph);
131 oph->type = htons(type);
132 oph->len = htons(4); /* May be updated later by end_property(). */
137 end_property(struct ofpbuf *msg, size_t start_ofs)
139 struct ofp_prop_header *oph;
141 oph = ofpbuf_at_assert(msg, start_ofs, sizeof *oph);
142 oph->len = htons(msg->size - start_ofs);
143 ofpbuf_padto(msg, ROUND_UP(msg->size, 8));
147 put_bitmap_properties(struct ofpbuf *msg, uint64_t bitmap)
149 for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) {
150 start_property(msg, rightmost_1bit_idx(bitmap));
154 /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns
155 * an IP netmask with a 1 in each bit that must match and a 0 in each bit that
158 * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0
159 * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits,
160 * ..., 32 and higher wildcard the entire field. This is the *opposite* of the
161 * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are
164 ofputil_wcbits_to_netmask(int wcbits)
167 return wcbits < 32 ? htonl(~((1u << wcbits) - 1)) : 0;
170 /* Given the IP netmask 'netmask', returns the number of bits of the IP address
171 * that it wildcards, that is, the number of 0-bits in 'netmask', a number
172 * between 0 and 32 inclusive.
174 * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will
175 * still be in the valid range but isn't otherwise meaningful. */
177 ofputil_netmask_to_wcbits(ovs_be32 netmask)
179 return 32 - ip_count_cidr_bits(netmask);
182 /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a
183 * flow_wildcards in 'wc' for use in struct match. It is the caller's
184 * responsibility to handle the special case where the flow match's dl_vlan is
185 * set to OFP_VLAN_NONE. */
187 ofputil_wildcard_from_ofpfw10(uint32_t ofpfw, struct flow_wildcards *wc)
189 BUILD_ASSERT_DECL(FLOW_WC_SEQ == 31);
191 /* Initialize most of wc. */
192 flow_wildcards_init_catchall(wc);
194 if (!(ofpfw & OFPFW10_IN_PORT)) {
195 wc->masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX);
198 if (!(ofpfw & OFPFW10_NW_TOS)) {
199 wc->masks.nw_tos |= IP_DSCP_MASK;
202 if (!(ofpfw & OFPFW10_NW_PROTO)) {
203 wc->masks.nw_proto = UINT8_MAX;
205 wc->masks.nw_src = ofputil_wcbits_to_netmask(ofpfw
206 >> OFPFW10_NW_SRC_SHIFT);
207 wc->masks.nw_dst = ofputil_wcbits_to_netmask(ofpfw
208 >> OFPFW10_NW_DST_SHIFT);
210 if (!(ofpfw & OFPFW10_TP_SRC)) {
211 wc->masks.tp_src = OVS_BE16_MAX;
213 if (!(ofpfw & OFPFW10_TP_DST)) {
214 wc->masks.tp_dst = OVS_BE16_MAX;
217 if (!(ofpfw & OFPFW10_DL_SRC)) {
218 memset(wc->masks.dl_src, 0xff, ETH_ADDR_LEN);
220 if (!(ofpfw & OFPFW10_DL_DST)) {
221 memset(wc->masks.dl_dst, 0xff, ETH_ADDR_LEN);
223 if (!(ofpfw & OFPFW10_DL_TYPE)) {
224 wc->masks.dl_type = OVS_BE16_MAX;
228 if (!(ofpfw & OFPFW10_DL_VLAN_PCP)) {
229 wc->masks.vlan_tci |= htons(VLAN_PCP_MASK | VLAN_CFI);
231 if (!(ofpfw & OFPFW10_DL_VLAN)) {
232 wc->masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
236 /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */
238 ofputil_match_from_ofp10_match(const struct ofp10_match *ofmatch,
241 uint32_t ofpfw = ntohl(ofmatch->wildcards) & OFPFW10_ALL;
243 /* Initialize match->wc. */
244 memset(&match->flow, 0, sizeof match->flow);
245 ofputil_wildcard_from_ofpfw10(ofpfw, &match->wc);
247 /* Initialize most of match->flow. */
248 match->flow.nw_src = ofmatch->nw_src;
249 match->flow.nw_dst = ofmatch->nw_dst;
250 match->flow.in_port.ofp_port = u16_to_ofp(ntohs(ofmatch->in_port));
251 match->flow.dl_type = ofputil_dl_type_from_openflow(ofmatch->dl_type);
252 match->flow.tp_src = ofmatch->tp_src;
253 match->flow.tp_dst = ofmatch->tp_dst;
254 memcpy(match->flow.dl_src, ofmatch->dl_src, ETH_ADDR_LEN);
255 memcpy(match->flow.dl_dst, ofmatch->dl_dst, ETH_ADDR_LEN);
256 match->flow.nw_tos = ofmatch->nw_tos & IP_DSCP_MASK;
257 match->flow.nw_proto = ofmatch->nw_proto;
259 /* Translate VLANs. */
260 if (!(ofpfw & OFPFW10_DL_VLAN) &&
261 ofmatch->dl_vlan == htons(OFP10_VLAN_NONE)) {
262 /* Match only packets without 802.1Q header.
264 * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct.
266 * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory,
267 * because we can't have a specific PCP without an 802.1Q header.
268 * However, older versions of OVS treated this as matching packets
269 * withut an 802.1Q header, so we do here too. */
270 match->flow.vlan_tci = htons(0);
271 match->wc.masks.vlan_tci = htons(0xffff);
273 ovs_be16 vid, pcp, tci;
276 vid = ofmatch->dl_vlan & htons(VLAN_VID_MASK);
277 hpcp = (ofmatch->dl_vlan_pcp << VLAN_PCP_SHIFT) & VLAN_PCP_MASK;
279 tci = vid | pcp | htons(VLAN_CFI);
280 match->flow.vlan_tci = tci & match->wc.masks.vlan_tci;
284 match_zero_wildcarded_fields(match);
287 /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */
289 ofputil_match_to_ofp10_match(const struct match *match,
290 struct ofp10_match *ofmatch)
292 const struct flow_wildcards *wc = &match->wc;
295 /* Figure out most OpenFlow wildcards. */
297 if (!wc->masks.in_port.ofp_port) {
298 ofpfw |= OFPFW10_IN_PORT;
300 if (!wc->masks.dl_type) {
301 ofpfw |= OFPFW10_DL_TYPE;
303 if (!wc->masks.nw_proto) {
304 ofpfw |= OFPFW10_NW_PROTO;
306 ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_src)
307 << OFPFW10_NW_SRC_SHIFT);
308 ofpfw |= (ofputil_netmask_to_wcbits(wc->masks.nw_dst)
309 << OFPFW10_NW_DST_SHIFT);
310 if (!(wc->masks.nw_tos & IP_DSCP_MASK)) {
311 ofpfw |= OFPFW10_NW_TOS;
313 if (!wc->masks.tp_src) {
314 ofpfw |= OFPFW10_TP_SRC;
316 if (!wc->masks.tp_dst) {
317 ofpfw |= OFPFW10_TP_DST;
319 if (eth_addr_is_zero(wc->masks.dl_src)) {
320 ofpfw |= OFPFW10_DL_SRC;
322 if (eth_addr_is_zero(wc->masks.dl_dst)) {
323 ofpfw |= OFPFW10_DL_DST;
326 /* Translate VLANs. */
327 ofmatch->dl_vlan = htons(0);
328 ofmatch->dl_vlan_pcp = 0;
329 if (match->wc.masks.vlan_tci == htons(0)) {
330 ofpfw |= OFPFW10_DL_VLAN | OFPFW10_DL_VLAN_PCP;
331 } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI)
332 && !(match->flow.vlan_tci & htons(VLAN_CFI))) {
333 ofmatch->dl_vlan = htons(OFP10_VLAN_NONE);
334 ofpfw |= OFPFW10_DL_VLAN_PCP;
336 if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) {
337 ofpfw |= OFPFW10_DL_VLAN;
339 ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci));
342 if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) {
343 ofpfw |= OFPFW10_DL_VLAN_PCP;
345 ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci);
349 /* Compose most of the match structure. */
350 ofmatch->wildcards = htonl(ofpfw);
351 ofmatch->in_port = htons(ofp_to_u16(match->flow.in_port.ofp_port));
352 memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN);
353 memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN);
354 ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type);
355 ofmatch->nw_src = match->flow.nw_src;
356 ofmatch->nw_dst = match->flow.nw_dst;
357 ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK;
358 ofmatch->nw_proto = match->flow.nw_proto;
359 ofmatch->tp_src = match->flow.tp_src;
360 ofmatch->tp_dst = match->flow.tp_dst;
361 memset(ofmatch->pad1, '\0', sizeof ofmatch->pad1);
362 memset(ofmatch->pad2, '\0', sizeof ofmatch->pad2);
366 ofputil_pull_ofp11_match(struct ofpbuf *buf, struct match *match,
367 uint16_t *padded_match_len)
369 struct ofp11_match_header *omh = buf->data;
372 if (buf->size < sizeof *omh) {
373 return OFPERR_OFPBMC_BAD_LEN;
376 match_len = ntohs(omh->length);
378 switch (ntohs(omh->type)) {
379 case OFPMT_STANDARD: {
380 struct ofp11_match *om;
382 if (match_len != sizeof *om || buf->size < sizeof *om) {
383 return OFPERR_OFPBMC_BAD_LEN;
385 om = ofpbuf_pull(buf, sizeof *om);
386 if (padded_match_len) {
387 *padded_match_len = match_len;
389 return ofputil_match_from_ofp11_match(om, match);
393 if (padded_match_len) {
394 *padded_match_len = ROUND_UP(match_len, 8);
396 return oxm_pull_match(buf, match);
399 return OFPERR_OFPBMC_BAD_TYPE;
403 /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'.
404 * Returns 0 if successful, otherwise an OFPERR_* value. */
406 ofputil_match_from_ofp11_match(const struct ofp11_match *ofmatch,
409 uint16_t wc = ntohl(ofmatch->wildcards);
410 uint8_t dl_src_mask[ETH_ADDR_LEN];
411 uint8_t dl_dst_mask[ETH_ADDR_LEN];
412 bool ipv4, arp, rarp;
415 match_init_catchall(match);
417 if (!(wc & OFPFW11_IN_PORT)) {
421 error = ofputil_port_from_ofp11(ofmatch->in_port, &ofp_port);
423 return OFPERR_OFPBMC_BAD_VALUE;
425 match_set_in_port(match, ofp_port);
428 for (i = 0; i < ETH_ADDR_LEN; i++) {
429 dl_src_mask[i] = ~ofmatch->dl_src_mask[i];
431 match_set_dl_src_masked(match, ofmatch->dl_src, dl_src_mask);
433 for (i = 0; i < ETH_ADDR_LEN; i++) {
434 dl_dst_mask[i] = ~ofmatch->dl_dst_mask[i];
436 match_set_dl_dst_masked(match, ofmatch->dl_dst, dl_dst_mask);
438 if (!(wc & OFPFW11_DL_VLAN)) {
439 if (ofmatch->dl_vlan == htons(OFPVID11_NONE)) {
440 /* Match only packets without a VLAN tag. */
441 match->flow.vlan_tci = htons(0);
442 match->wc.masks.vlan_tci = OVS_BE16_MAX;
444 if (ofmatch->dl_vlan == htons(OFPVID11_ANY)) {
445 /* Match any packet with a VLAN tag regardless of VID. */
446 match->flow.vlan_tci = htons(VLAN_CFI);
447 match->wc.masks.vlan_tci = htons(VLAN_CFI);
448 } else if (ntohs(ofmatch->dl_vlan) < 4096) {
449 /* Match only packets with the specified VLAN VID. */
450 match->flow.vlan_tci = htons(VLAN_CFI) | ofmatch->dl_vlan;
451 match->wc.masks.vlan_tci = htons(VLAN_CFI | VLAN_VID_MASK);
454 return OFPERR_OFPBMC_BAD_VALUE;
457 if (!(wc & OFPFW11_DL_VLAN_PCP)) {
458 if (ofmatch->dl_vlan_pcp <= 7) {
459 match->flow.vlan_tci |= htons(ofmatch->dl_vlan_pcp
461 match->wc.masks.vlan_tci |= htons(VLAN_PCP_MASK);
464 return OFPERR_OFPBMC_BAD_VALUE;
470 if (!(wc & OFPFW11_DL_TYPE)) {
471 match_set_dl_type(match,
472 ofputil_dl_type_from_openflow(ofmatch->dl_type));
475 ipv4 = match->flow.dl_type == htons(ETH_TYPE_IP);
476 arp = match->flow.dl_type == htons(ETH_TYPE_ARP);
477 rarp = match->flow.dl_type == htons(ETH_TYPE_RARP);
479 if (ipv4 && !(wc & OFPFW11_NW_TOS)) {
480 if (ofmatch->nw_tos & ~IP_DSCP_MASK) {
482 return OFPERR_OFPBMC_BAD_VALUE;
485 match_set_nw_dscp(match, ofmatch->nw_tos);
488 if (ipv4 || arp || rarp) {
489 if (!(wc & OFPFW11_NW_PROTO)) {
490 match_set_nw_proto(match, ofmatch->nw_proto);
492 match_set_nw_src_masked(match, ofmatch->nw_src, ~ofmatch->nw_src_mask);
493 match_set_nw_dst_masked(match, ofmatch->nw_dst, ~ofmatch->nw_dst_mask);
496 #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST)
497 if (ipv4 && (wc & OFPFW11_TP_ALL) != OFPFW11_TP_ALL) {
498 switch (match->flow.nw_proto) {
500 /* "A.2.3 Flow Match Structures" in OF1.1 says:
502 * The tp_src and tp_dst fields will be ignored unless the
503 * network protocol specified is as TCP, UDP or SCTP.
505 * but I'm pretty sure we should support ICMP too, otherwise
506 * that's a regression from OF1.0. */
507 if (!(wc & OFPFW11_TP_SRC)) {
508 uint16_t icmp_type = ntohs(ofmatch->tp_src);
509 if (icmp_type < 0x100) {
510 match_set_icmp_type(match, icmp_type);
512 return OFPERR_OFPBMC_BAD_FIELD;
515 if (!(wc & OFPFW11_TP_DST)) {
516 uint16_t icmp_code = ntohs(ofmatch->tp_dst);
517 if (icmp_code < 0x100) {
518 match_set_icmp_code(match, icmp_code);
520 return OFPERR_OFPBMC_BAD_FIELD;
528 if (!(wc & (OFPFW11_TP_SRC))) {
529 match_set_tp_src(match, ofmatch->tp_src);
531 if (!(wc & (OFPFW11_TP_DST))) {
532 match_set_tp_dst(match, ofmatch->tp_dst);
537 /* OF1.1 says explicitly to ignore this. */
542 if (eth_type_mpls(match->flow.dl_type)) {
543 if (!(wc & OFPFW11_MPLS_LABEL)) {
544 match_set_mpls_label(match, 0, ofmatch->mpls_label);
546 if (!(wc & OFPFW11_MPLS_TC)) {
547 match_set_mpls_tc(match, 0, ofmatch->mpls_tc);
551 match_set_metadata_masked(match, ofmatch->metadata,
552 ~ofmatch->metadata_mask);
557 /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */
559 ofputil_match_to_ofp11_match(const struct match *match,
560 struct ofp11_match *ofmatch)
565 memset(ofmatch, 0, sizeof *ofmatch);
566 ofmatch->omh.type = htons(OFPMT_STANDARD);
567 ofmatch->omh.length = htons(OFPMT11_STANDARD_LENGTH);
569 if (!match->wc.masks.in_port.ofp_port) {
570 wc |= OFPFW11_IN_PORT;
572 ofmatch->in_port = ofputil_port_to_ofp11(match->flow.in_port.ofp_port);
575 memcpy(ofmatch->dl_src, match->flow.dl_src, ETH_ADDR_LEN);
576 for (i = 0; i < ETH_ADDR_LEN; i++) {
577 ofmatch->dl_src_mask[i] = ~match->wc.masks.dl_src[i];
580 memcpy(ofmatch->dl_dst, match->flow.dl_dst, ETH_ADDR_LEN);
581 for (i = 0; i < ETH_ADDR_LEN; i++) {
582 ofmatch->dl_dst_mask[i] = ~match->wc.masks.dl_dst[i];
585 if (match->wc.masks.vlan_tci == htons(0)) {
586 wc |= OFPFW11_DL_VLAN | OFPFW11_DL_VLAN_PCP;
587 } else if (match->wc.masks.vlan_tci & htons(VLAN_CFI)
588 && !(match->flow.vlan_tci & htons(VLAN_CFI))) {
589 ofmatch->dl_vlan = htons(OFPVID11_NONE);
590 wc |= OFPFW11_DL_VLAN_PCP;
592 if (!(match->wc.masks.vlan_tci & htons(VLAN_VID_MASK))) {
593 ofmatch->dl_vlan = htons(OFPVID11_ANY);
595 ofmatch->dl_vlan = htons(vlan_tci_to_vid(match->flow.vlan_tci));
598 if (!(match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK))) {
599 wc |= OFPFW11_DL_VLAN_PCP;
601 ofmatch->dl_vlan_pcp = vlan_tci_to_pcp(match->flow.vlan_tci);
605 if (!match->wc.masks.dl_type) {
606 wc |= OFPFW11_DL_TYPE;
608 ofmatch->dl_type = ofputil_dl_type_to_openflow(match->flow.dl_type);
611 if (!(match->wc.masks.nw_tos & IP_DSCP_MASK)) {
612 wc |= OFPFW11_NW_TOS;
614 ofmatch->nw_tos = match->flow.nw_tos & IP_DSCP_MASK;
617 if (!match->wc.masks.nw_proto) {
618 wc |= OFPFW11_NW_PROTO;
620 ofmatch->nw_proto = match->flow.nw_proto;
623 ofmatch->nw_src = match->flow.nw_src;
624 ofmatch->nw_src_mask = ~match->wc.masks.nw_src;
625 ofmatch->nw_dst = match->flow.nw_dst;
626 ofmatch->nw_dst_mask = ~match->wc.masks.nw_dst;
628 if (!match->wc.masks.tp_src) {
629 wc |= OFPFW11_TP_SRC;
631 ofmatch->tp_src = match->flow.tp_src;
634 if (!match->wc.masks.tp_dst) {
635 wc |= OFPFW11_TP_DST;
637 ofmatch->tp_dst = match->flow.tp_dst;
640 if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK))) {
641 wc |= OFPFW11_MPLS_LABEL;
643 ofmatch->mpls_label = htonl(mpls_lse_to_label(
644 match->flow.mpls_lse[0]));
647 if (!(match->wc.masks.mpls_lse[0] & htonl(MPLS_TC_MASK))) {
648 wc |= OFPFW11_MPLS_TC;
650 ofmatch->mpls_tc = mpls_lse_to_tc(match->flow.mpls_lse[0]);
653 ofmatch->metadata = match->flow.metadata;
654 ofmatch->metadata_mask = ~match->wc.masks.metadata;
656 ofmatch->wildcards = htonl(wc);
659 /* Returns the "typical" length of a match for 'protocol', for use in
660 * estimating space to preallocate. */
662 ofputil_match_typical_len(enum ofputil_protocol protocol)
665 case OFPUTIL_P_OF10_STD:
666 case OFPUTIL_P_OF10_STD_TID:
667 return sizeof(struct ofp10_match);
669 case OFPUTIL_P_OF10_NXM:
670 case OFPUTIL_P_OF10_NXM_TID:
671 return NXM_TYPICAL_LEN;
673 case OFPUTIL_P_OF11_STD:
674 return sizeof(struct ofp11_match);
676 case OFPUTIL_P_OF12_OXM:
677 case OFPUTIL_P_OF13_OXM:
678 case OFPUTIL_P_OF14_OXM:
679 case OFPUTIL_P_OF15_OXM:
680 return NXM_TYPICAL_LEN;
687 /* Appends to 'b' an struct ofp11_match_header followed by a match that
688 * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the
689 * data appended out to a multiple of 8. 'protocol' must be one that is usable
690 * in OpenFlow 1.1 or later.
692 * This function can cause 'b''s data to be reallocated.
694 * Returns the number of bytes appended to 'b', excluding the padding. Never
697 ofputil_put_ofp11_match(struct ofpbuf *b, const struct match *match,
698 enum ofputil_protocol protocol)
701 case OFPUTIL_P_OF10_STD:
702 case OFPUTIL_P_OF10_STD_TID:
703 case OFPUTIL_P_OF10_NXM:
704 case OFPUTIL_P_OF10_NXM_TID:
707 case OFPUTIL_P_OF11_STD: {
708 struct ofp11_match *om;
710 /* Make sure that no padding is needed. */
711 BUILD_ASSERT_DECL(sizeof *om % 8 == 0);
713 om = ofpbuf_put_uninit(b, sizeof *om);
714 ofputil_match_to_ofp11_match(match, om);
718 case OFPUTIL_P_OF12_OXM:
719 case OFPUTIL_P_OF13_OXM:
720 case OFPUTIL_P_OF14_OXM:
721 case OFPUTIL_P_OF15_OXM:
722 return oxm_put_match(b, match,
723 ofputil_protocol_to_ofp_version(protocol));
729 /* Given a 'dl_type' value in the format used in struct flow, returns the
730 * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match
733 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type)
735 return (flow_dl_type == htons(FLOW_DL_TYPE_NONE)
736 ? htons(OFP_DL_TYPE_NOT_ETH_TYPE)
740 /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match
741 * structure, returns the corresponding 'dl_type' value for use in struct
744 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type)
746 return (ofp_dl_type == htons(OFP_DL_TYPE_NOT_ETH_TYPE)
747 ? htons(FLOW_DL_TYPE_NONE)
753 struct proto_abbrev {
754 enum ofputil_protocol protocol;
758 /* Most users really don't care about some of the differences between
759 * protocols. These abbreviations help with that. */
760 static const struct proto_abbrev proto_abbrevs[] = {
761 { OFPUTIL_P_ANY, "any" },
762 { OFPUTIL_P_OF10_STD_ANY, "OpenFlow10" },
763 { OFPUTIL_P_OF10_NXM_ANY, "NXM" },
764 { OFPUTIL_P_ANY_OXM, "OXM" },
766 #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs)
768 enum ofputil_protocol ofputil_flow_dump_protocols[] = {
777 size_t ofputil_n_flow_dump_protocols = ARRAY_SIZE(ofputil_flow_dump_protocols);
779 /* Returns the set of ofputil_protocols that are supported with the given
780 * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version
781 * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0
782 * if 'version' is not supported or outside the valid range. */
783 enum ofputil_protocol
784 ofputil_protocols_from_ofp_version(enum ofp_version version)
788 return OFPUTIL_P_OF10_STD_ANY | OFPUTIL_P_OF10_NXM_ANY;
790 return OFPUTIL_P_OF11_STD;
792 return OFPUTIL_P_OF12_OXM;
794 return OFPUTIL_P_OF13_OXM;
796 return OFPUTIL_P_OF14_OXM;
798 return OFPUTIL_P_OF15_OXM;
804 /* Returns the ofputil_protocol that is initially in effect on an OpenFlow
805 * connection that has negotiated the given 'version'. 'version' should
806 * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow
807 * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or
808 * outside the valid range. */
809 enum ofputil_protocol
810 ofputil_protocol_from_ofp_version(enum ofp_version version)
812 return rightmost_1bit(ofputil_protocols_from_ofp_version(version));
815 /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION,
816 * etc.) that corresponds to 'protocol'. */
818 ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol)
821 case OFPUTIL_P_OF10_STD:
822 case OFPUTIL_P_OF10_STD_TID:
823 case OFPUTIL_P_OF10_NXM:
824 case OFPUTIL_P_OF10_NXM_TID:
825 return OFP10_VERSION;
826 case OFPUTIL_P_OF11_STD:
827 return OFP11_VERSION;
828 case OFPUTIL_P_OF12_OXM:
829 return OFP12_VERSION;
830 case OFPUTIL_P_OF13_OXM:
831 return OFP13_VERSION;
832 case OFPUTIL_P_OF14_OXM:
833 return OFP14_VERSION;
834 case OFPUTIL_P_OF15_OXM:
835 return OFP15_VERSION;
841 /* Returns a bitmap of OpenFlow versions that are supported by at
842 * least one of the 'protocols'. */
844 ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols)
848 for (; protocols; protocols = zero_rightmost_1bit(protocols)) {
849 enum ofputil_protocol protocol = rightmost_1bit(protocols);
851 bitmap |= 1u << ofputil_protocol_to_ofp_version(protocol);
857 /* Returns the set of protocols that are supported on top of the
858 * OpenFlow versions included in 'bitmap'. */
859 enum ofputil_protocol
860 ofputil_protocols_from_version_bitmap(uint32_t bitmap)
862 enum ofputil_protocol protocols = 0;
864 for (; bitmap; bitmap = zero_rightmost_1bit(bitmap)) {
865 enum ofp_version version = rightmost_1bit_idx(bitmap);
867 protocols |= ofputil_protocols_from_ofp_version(version);
873 /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false
876 ofputil_protocol_is_valid(enum ofputil_protocol protocol)
878 return protocol & OFPUTIL_P_ANY && is_pow2(protocol);
881 /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id
882 * extension turned on or off if 'enable' is true or false, respectively.
884 * This extension is only useful for protocols whose "standard" version does
885 * not allow specific tables to be modified. In particular, this is true of
886 * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always
887 * specifies a table ID and so there is no need for such an extension. When
888 * 'protocol' is such a protocol that doesn't need a flow_mod_table_id
889 * extension, this function just returns its 'protocol' argument unchanged
890 * regardless of the value of 'enable'. */
891 enum ofputil_protocol
892 ofputil_protocol_set_tid(enum ofputil_protocol protocol, bool enable)
895 case OFPUTIL_P_OF10_STD:
896 case OFPUTIL_P_OF10_STD_TID:
897 return enable ? OFPUTIL_P_OF10_STD_TID : OFPUTIL_P_OF10_STD;
899 case OFPUTIL_P_OF10_NXM:
900 case OFPUTIL_P_OF10_NXM_TID:
901 return enable ? OFPUTIL_P_OF10_NXM_TID : OFPUTIL_P_OF10_NXM;
903 case OFPUTIL_P_OF11_STD:
904 return OFPUTIL_P_OF11_STD;
906 case OFPUTIL_P_OF12_OXM:
907 return OFPUTIL_P_OF12_OXM;
909 case OFPUTIL_P_OF13_OXM:
910 return OFPUTIL_P_OF13_OXM;
912 case OFPUTIL_P_OF14_OXM:
913 return OFPUTIL_P_OF14_OXM;
915 case OFPUTIL_P_OF15_OXM:
916 return OFPUTIL_P_OF15_OXM;
923 /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes
924 * some extension to a standard protocol version, the return value is the
925 * standard version of that protocol without any extension. If 'protocol' is a
926 * standard protocol version, returns 'protocol' unchanged. */
927 enum ofputil_protocol
928 ofputil_protocol_to_base(enum ofputil_protocol protocol)
930 return ofputil_protocol_set_tid(protocol, false);
933 /* Returns 'new_base' with any extensions taken from 'cur'. */
934 enum ofputil_protocol
935 ofputil_protocol_set_base(enum ofputil_protocol cur,
936 enum ofputil_protocol new_base)
938 bool tid = (cur & OFPUTIL_P_TID) != 0;
941 case OFPUTIL_P_OF10_STD:
942 case OFPUTIL_P_OF10_STD_TID:
943 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD, tid);
945 case OFPUTIL_P_OF10_NXM:
946 case OFPUTIL_P_OF10_NXM_TID:
947 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM, tid);
949 case OFPUTIL_P_OF11_STD:
950 return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD, tid);
952 case OFPUTIL_P_OF12_OXM:
953 return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM, tid);
955 case OFPUTIL_P_OF13_OXM:
956 return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM, tid);
958 case OFPUTIL_P_OF14_OXM:
959 return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM, tid);
961 case OFPUTIL_P_OF15_OXM:
962 return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM, tid);
969 /* Returns a string form of 'protocol', if a simple form exists (that is, if
970 * 'protocol' is either a single protocol or it is a combination of protocols
971 * that have a single abbreviation). Otherwise, returns NULL. */
973 ofputil_protocol_to_string(enum ofputil_protocol protocol)
975 const struct proto_abbrev *p;
977 /* Use a "switch" statement for single-bit names so that we get a compiler
978 * warning if we forget any. */
980 case OFPUTIL_P_OF10_NXM:
981 return "NXM-table_id";
983 case OFPUTIL_P_OF10_NXM_TID:
984 return "NXM+table_id";
986 case OFPUTIL_P_OF10_STD:
987 return "OpenFlow10-table_id";
989 case OFPUTIL_P_OF10_STD_TID:
990 return "OpenFlow10+table_id";
992 case OFPUTIL_P_OF11_STD:
995 case OFPUTIL_P_OF12_OXM:
996 return "OXM-OpenFlow12";
998 case OFPUTIL_P_OF13_OXM:
999 return "OXM-OpenFlow13";
1001 case OFPUTIL_P_OF14_OXM:
1002 return "OXM-OpenFlow14";
1004 case OFPUTIL_P_OF15_OXM:
1005 return "OXM-OpenFlow15";
1008 /* Check abbreviations. */
1009 for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
1010 if (protocol == p->protocol) {
1018 /* Returns a string that represents 'protocols'. The return value might be a
1019 * comma-separated list if 'protocols' doesn't have a simple name. The return
1020 * value is "none" if 'protocols' is 0.
1022 * The caller must free the returned string (with free()). */
1024 ofputil_protocols_to_string(enum ofputil_protocol protocols)
1028 ovs_assert(!(protocols & ~OFPUTIL_P_ANY));
1029 if (protocols == 0) {
1030 return xstrdup("none");
1035 const struct proto_abbrev *p;
1039 ds_put_char(&s, ',');
1042 for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
1043 if ((protocols & p->protocol) == p->protocol) {
1044 ds_put_cstr(&s, p->name);
1045 protocols &= ~p->protocol;
1050 for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) {
1051 enum ofputil_protocol bit = 1u << i;
1053 if (protocols & bit) {
1054 ds_put_cstr(&s, ofputil_protocol_to_string(bit));
1063 return ds_steal_cstr(&s);
1066 static enum ofputil_protocol
1067 ofputil_protocol_from_string__(const char *s, size_t n)
1069 const struct proto_abbrev *p;
1072 for (i = 0; i < CHAR_BIT * sizeof(enum ofputil_protocol); i++) {
1073 enum ofputil_protocol bit = 1u << i;
1074 const char *name = ofputil_protocol_to_string(bit);
1076 if (name && n == strlen(name) && !strncasecmp(s, name, n)) {
1081 for (p = proto_abbrevs; p < &proto_abbrevs[N_PROTO_ABBREVS]; p++) {
1082 if (n == strlen(p->name) && !strncasecmp(s, p->name, n)) {
1090 /* Returns the nonempty set of protocols represented by 's', which can be a
1091 * single protocol name or abbreviation or a comma-separated list of them.
1093 * Aborts the program with an error message if 's' is invalid. */
1094 enum ofputil_protocol
1095 ofputil_protocols_from_string(const char *s)
1097 const char *orig_s = s;
1098 enum ofputil_protocol protocols;
1102 enum ofputil_protocol p;
1105 n = strcspn(s, ",");
1111 p = ofputil_protocol_from_string__(s, n);
1113 ovs_fatal(0, "%.*s: unknown flow protocol", (int) n, s);
1121 ovs_fatal(0, "%s: no flow protocol specified", orig_s);
1127 ofputil_version_from_string(const char *s)
1129 if (!strcasecmp(s, "OpenFlow10")) {
1130 return OFP10_VERSION;
1132 if (!strcasecmp(s, "OpenFlow11")) {
1133 return OFP11_VERSION;
1135 if (!strcasecmp(s, "OpenFlow12")) {
1136 return OFP12_VERSION;
1138 if (!strcasecmp(s, "OpenFlow13")) {
1139 return OFP13_VERSION;
1141 if (!strcasecmp(s, "OpenFlow14")) {
1142 return OFP14_VERSION;
1144 if (!strcasecmp(s, "OpenFlow15")) {
1145 return OFP15_VERSION;
1151 is_delimiter(unsigned char c)
1153 return isspace(c) || c == ',';
1157 ofputil_versions_from_string(const char *s)
1160 uint32_t bitmap = 0;
1167 if (is_delimiter(s[i])) {
1172 while (s[i + j] && !is_delimiter(s[i + j])) {
1175 key = xmemdup0(s + i, j);
1176 version = ofputil_version_from_string(key);
1178 VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key);
1181 bitmap |= 1u << version;
1189 ofputil_versions_from_strings(char ** const s, size_t count)
1191 uint32_t bitmap = 0;
1194 int version = ofputil_version_from_string(s[count]);
1196 VLOG_WARN("Unknown OpenFlow version: \"%s\"", s[count]);
1198 bitmap |= 1u << version;
1206 ofputil_version_to_string(enum ofp_version ofp_version)
1208 switch (ofp_version) {
1210 return "OpenFlow10";
1212 return "OpenFlow11";
1214 return "OpenFlow12";
1216 return "OpenFlow13";
1218 return "OpenFlow14";
1220 return "OpenFlow15";
1227 ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format)
1229 switch (packet_in_format) {
1230 case NXPIF_OPENFLOW10:
1239 ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format)
1241 switch (packet_in_format) {
1242 case NXPIF_OPENFLOW10:
1243 return "openflow10";
1252 ofputil_packet_in_format_from_string(const char *s)
1254 return (!strcmp(s, "openflow10") ? NXPIF_OPENFLOW10
1255 : !strcmp(s, "nxm") ? NXPIF_NXM
1260 ofputil_format_version(struct ds *msg, enum ofp_version version)
1262 ds_put_format(msg, "0x%02x", version);
1266 ofputil_format_version_name(struct ds *msg, enum ofp_version version)
1268 ds_put_cstr(msg, ofputil_version_to_string(version));
1272 ofputil_format_version_bitmap__(struct ds *msg, uint32_t bitmap,
1273 void (*format_version)(struct ds *msg,
1277 format_version(msg, raw_ctz(bitmap));
1278 bitmap = zero_rightmost_1bit(bitmap);
1280 ds_put_cstr(msg, ", ");
1286 ofputil_format_version_bitmap(struct ds *msg, uint32_t bitmap)
1288 ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version);
1292 ofputil_format_version_bitmap_names(struct ds *msg, uint32_t bitmap)
1294 ofputil_format_version_bitmap__(msg, bitmap, ofputil_format_version_name);
1298 ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header *oheh,
1299 uint32_t *allowed_versionsp)
1301 uint16_t bitmap_len = ntohs(oheh->length) - sizeof *oheh;
1302 const ovs_be32 *bitmap = ALIGNED_CAST(const ovs_be32 *, oheh + 1);
1303 uint32_t allowed_versions;
1305 if (!bitmap_len || bitmap_len % sizeof *bitmap) {
1309 /* Only use the first 32-bit element of the bitmap as that is all the
1310 * current implementation supports. Subsequent elements are ignored which
1311 * should have no effect on session negotiation until Open vSwtich supports
1312 * wire-protocol versions greater than 31.
1314 allowed_versions = ntohl(bitmap[0]);
1316 if (allowed_versions & 1) {
1317 /* There's no OpenFlow version 0. */
1318 VLOG_WARN_RL(&bad_ofmsg_rl, "peer claims to support invalid OpenFlow "
1320 allowed_versions &= ~1u;
1323 if (!allowed_versions) {
1324 VLOG_WARN_RL(&bad_ofmsg_rl, "peer does not support any OpenFlow "
1325 "version (between 0x01 and 0x1f)");
1329 *allowed_versionsp = allowed_versions;
1334 version_bitmap_from_version(uint8_t ofp_version)
1336 return ((ofp_version < 32 ? 1u << ofp_version : 0) - 1) << 1;
1339 /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions'
1340 * the set of OpenFlow versions for which 'oh' announces support.
1342 * Because of how OpenFlow defines OFPT_HELLO messages, this function is always
1343 * successful, and thus '*allowed_versions' is always initialized. However, it
1344 * returns false if 'oh' contains some data that could not be fully understood,
1345 * true if 'oh' was completely parsed. */
1347 ofputil_decode_hello(const struct ofp_header *oh, uint32_t *allowed_versions)
1352 ofpbuf_use_const(&msg, oh, ntohs(oh->length));
1353 ofpbuf_pull(&msg, sizeof *oh);
1355 *allowed_versions = version_bitmap_from_version(oh->version);
1357 const struct ofp_hello_elem_header *oheh;
1360 if (msg.size < sizeof *oheh) {
1365 len = ntohs(oheh->length);
1366 if (len < sizeof *oheh || !ofpbuf_try_pull(&msg, ROUND_UP(len, 8))) {
1370 if (oheh->type != htons(OFPHET_VERSIONBITMAP)
1371 || !ofputil_decode_hello_bitmap(oheh, allowed_versions)) {
1379 /* Returns true if 'allowed_versions' needs to be accompanied by a version
1380 * bitmap to be correctly expressed in an OFPT_HELLO message. */
1382 should_send_version_bitmap(uint32_t allowed_versions)
1384 return !is_pow2((allowed_versions >> 1) + 1);
1387 /* Create an OFPT_HELLO message that expresses support for the OpenFlow
1388 * versions in the 'allowed_versions' bitmaps and returns the message. */
1390 ofputil_encode_hello(uint32_t allowed_versions)
1392 enum ofp_version ofp_version;
1395 ofp_version = leftmost_1bit_idx(allowed_versions);
1396 msg = ofpraw_alloc(OFPRAW_OFPT_HELLO, ofp_version, 0);
1398 if (should_send_version_bitmap(allowed_versions)) {
1399 struct ofp_hello_elem_header *oheh;
1402 map_len = sizeof allowed_versions;
1403 oheh = ofpbuf_put_zeros(msg, ROUND_UP(map_len + sizeof *oheh, 8));
1404 oheh->type = htons(OFPHET_VERSIONBITMAP);
1405 oheh->length = htons(map_len + sizeof *oheh);
1406 *ALIGNED_CAST(ovs_be32 *, oheh + 1) = htonl(allowed_versions);
1408 ofpmsg_update_length(msg);
1414 /* Returns an OpenFlow message that, sent on an OpenFlow connection whose
1415 * protocol is 'current', at least partly transitions the protocol to 'want'.
1416 * Stores in '*next' the protocol that will be in effect on the OpenFlow
1417 * connection if the switch processes the returned message correctly. (If
1418 * '*next != want' then the caller will have to iterate.)
1420 * If 'current == want', or if it is not possible to transition from 'current'
1421 * to 'want' (because, for example, 'current' and 'want' use different OpenFlow
1422 * protocol versions), returns NULL and stores 'current' in '*next'. */
1424 ofputil_encode_set_protocol(enum ofputil_protocol current,
1425 enum ofputil_protocol want,
1426 enum ofputil_protocol *next)
1428 enum ofp_version cur_version, want_version;
1429 enum ofputil_protocol cur_base, want_base;
1430 bool cur_tid, want_tid;
1432 cur_version = ofputil_protocol_to_ofp_version(current);
1433 want_version = ofputil_protocol_to_ofp_version(want);
1434 if (cur_version != want_version) {
1439 cur_base = ofputil_protocol_to_base(current);
1440 want_base = ofputil_protocol_to_base(want);
1441 if (cur_base != want_base) {
1442 *next = ofputil_protocol_set_base(current, want_base);
1444 switch (want_base) {
1445 case OFPUTIL_P_OF10_NXM:
1446 return ofputil_encode_nx_set_flow_format(NXFF_NXM);
1448 case OFPUTIL_P_OF10_STD:
1449 return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10);
1451 case OFPUTIL_P_OF11_STD:
1452 case OFPUTIL_P_OF12_OXM:
1453 case OFPUTIL_P_OF13_OXM:
1454 case OFPUTIL_P_OF14_OXM:
1455 case OFPUTIL_P_OF15_OXM:
1456 /* There is only one variant of each OpenFlow 1.1+ protocol, and we
1457 * verified above that we're not trying to change versions. */
1460 case OFPUTIL_P_OF10_STD_TID:
1461 case OFPUTIL_P_OF10_NXM_TID:
1466 cur_tid = (current & OFPUTIL_P_TID) != 0;
1467 want_tid = (want & OFPUTIL_P_TID) != 0;
1468 if (cur_tid != want_tid) {
1469 *next = ofputil_protocol_set_tid(current, want_tid);
1470 return ofputil_make_flow_mod_table_id(want_tid);
1473 ovs_assert(current == want);
1479 /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow
1480 * format to 'nxff'. */
1482 ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff)
1484 struct nx_set_flow_format *sff;
1487 ovs_assert(ofputil_nx_flow_format_is_valid(nxff));
1489 msg = ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT, OFP10_VERSION, 0);
1490 sff = ofpbuf_put_zeros(msg, sizeof *sff);
1491 sff->format = htonl(nxff);
1496 /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false
1498 enum ofputil_protocol
1499 ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format)
1501 switch (flow_format) {
1502 case NXFF_OPENFLOW10:
1503 return OFPUTIL_P_OF10_STD;
1506 return OFPUTIL_P_OF10_NXM;
1513 /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */
1515 ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format)
1517 return ofputil_nx_flow_format_to_protocol(flow_format) != 0;
1520 /* Returns a string version of 'flow_format', which must be a valid NXFF_*
1523 ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format)
1525 switch (flow_format) {
1526 case NXFF_OPENFLOW10:
1527 return "openflow10";
1536 ofputil_make_set_packet_in_format(enum ofp_version ofp_version,
1537 enum nx_packet_in_format packet_in_format)
1539 struct nx_set_packet_in_format *spif;
1542 msg = ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT, ofp_version, 0);
1543 spif = ofpbuf_put_zeros(msg, sizeof *spif);
1544 spif->format = htonl(packet_in_format);
1549 /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id
1550 * extension on or off (according to 'flow_mod_table_id'). */
1552 ofputil_make_flow_mod_table_id(bool flow_mod_table_id)
1554 struct nx_flow_mod_table_id *nfmti;
1557 msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID, OFP10_VERSION, 0);
1558 nfmti = ofpbuf_put_zeros(msg, sizeof *nfmti);
1559 nfmti->set = flow_mod_table_id;
1563 struct ofputil_flow_mod_flag {
1565 enum ofp_version min_version, max_version;
1566 enum ofputil_flow_mod_flags flag;
1569 static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags[] = {
1570 { OFPFF_SEND_FLOW_REM, OFP10_VERSION, 0, OFPUTIL_FF_SEND_FLOW_REM },
1571 { OFPFF_CHECK_OVERLAP, OFP10_VERSION, 0, OFPUTIL_FF_CHECK_OVERLAP },
1572 { OFPFF10_EMERG, OFP10_VERSION, OFP10_VERSION,
1574 { OFPFF12_RESET_COUNTS, OFP12_VERSION, 0, OFPUTIL_FF_RESET_COUNTS },
1575 { OFPFF13_NO_PKT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_PKT_COUNTS },
1576 { OFPFF13_NO_BYT_COUNTS, OFP13_VERSION, 0, OFPUTIL_FF_NO_BYT_COUNTS },
1581 ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_,
1582 enum ofp_flow_mod_command command,
1583 enum ofp_version version,
1584 enum ofputil_flow_mod_flags *flagsp)
1586 uint16_t raw_flags = ntohs(raw_flags_);
1587 const struct ofputil_flow_mod_flag *f;
1590 for (f = ofputil_flow_mod_flags; f->raw_flag; f++) {
1591 if (raw_flags & f->raw_flag
1592 && version >= f->min_version
1593 && (!f->max_version || version <= f->max_version)) {
1594 raw_flags &= ~f->raw_flag;
1599 /* In OF1.0 and OF1.1, "add" always resets counters, and other commands
1602 * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command
1603 * resets counters. */
1604 if ((version == OFP10_VERSION || version == OFP11_VERSION)
1605 && command == OFPFC_ADD) {
1606 *flagsp |= OFPUTIL_FF_RESET_COUNTS;
1609 return raw_flags ? OFPERR_OFPFMFC_BAD_FLAGS : 0;
1613 ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags,
1614 enum ofp_version version)
1616 const struct ofputil_flow_mod_flag *f;
1620 for (f = ofputil_flow_mod_flags; f->raw_flag; f++) {
1622 && version >= f->min_version
1623 && (!f->max_version || version <= f->max_version)) {
1624 raw_flags |= f->raw_flag;
1628 return htons(raw_flags);
1631 /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract
1632 * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error
1635 * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions.
1636 * The caller must initialize 'ofpacts' and retains ownership of it.
1637 * 'fm->ofpacts' will point into the 'ofpacts' buffer.
1639 * Does not validate the flow_mod actions. The caller should do that, with
1640 * ofpacts_check(). */
1642 ofputil_decode_flow_mod(struct ofputil_flow_mod *fm,
1643 const struct ofp_header *oh,
1644 enum ofputil_protocol protocol,
1645 struct ofpbuf *ofpacts,
1646 ofp_port_t max_port, uint8_t max_table)
1653 /* Ignored for non-delete actions */
1654 fm->delete_reason = OFPRR_DELETE;
1656 ofpbuf_use_const(&b, oh, ntohs(oh->length));
1657 raw = ofpraw_pull_assert(&b);
1658 if (raw == OFPRAW_OFPT11_FLOW_MOD) {
1659 /* Standard OpenFlow 1.1+ flow_mod. */
1660 const struct ofp11_flow_mod *ofm;
1662 ofm = ofpbuf_pull(&b, sizeof *ofm);
1664 error = ofputil_pull_ofp11_match(&b, &fm->match, NULL);
1669 /* Translate the message. */
1670 fm->priority = ntohs(ofm->priority);
1671 if (ofm->command == OFPFC_ADD
1672 || (oh->version == OFP11_VERSION
1673 && (ofm->command == OFPFC_MODIFY ||
1674 ofm->command == OFPFC_MODIFY_STRICT)
1675 && ofm->cookie_mask == htonll(0))) {
1676 /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does
1677 * not match on the cookie is treated as an "add" if there is no
1679 fm->cookie = htonll(0);
1680 fm->cookie_mask = htonll(0);
1681 fm->new_cookie = ofm->cookie;
1683 fm->cookie = ofm->cookie;
1684 fm->cookie_mask = ofm->cookie_mask;
1685 fm->new_cookie = OVS_BE64_MAX;
1687 fm->modify_cookie = false;
1688 fm->command = ofm->command;
1692 * OF1.1 entirely forbids table_id == OFPTT_ALL.
1693 * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */
1694 fm->table_id = ofm->table_id;
1695 if (fm->table_id == OFPTT_ALL
1696 && (oh->version == OFP11_VERSION
1697 || (ofm->command != OFPFC_DELETE &&
1698 ofm->command != OFPFC_DELETE_STRICT))) {
1699 return OFPERR_OFPFMFC_BAD_TABLE_ID;
1702 fm->idle_timeout = ntohs(ofm->idle_timeout);
1703 fm->hard_timeout = ntohs(ofm->hard_timeout);
1704 if (oh->version >= OFP14_VERSION && ofm->command == OFPFC_ADD) {
1705 fm->importance = ntohs(ofm->importance);
1709 fm->buffer_id = ntohl(ofm->buffer_id);
1710 error = ofputil_port_from_ofp11(ofm->out_port, &fm->out_port);
1715 fm->out_group = (ofm->command == OFPFC_DELETE ||
1716 ofm->command == OFPFC_DELETE_STRICT
1717 ? ntohl(ofm->out_group)
1719 raw_flags = ofm->flags;
1723 if (raw == OFPRAW_OFPT10_FLOW_MOD) {
1724 /* Standard OpenFlow 1.0 flow_mod. */
1725 const struct ofp10_flow_mod *ofm;
1727 /* Get the ofp10_flow_mod. */
1728 ofm = ofpbuf_pull(&b, sizeof *ofm);
1730 /* Translate the rule. */
1731 ofputil_match_from_ofp10_match(&ofm->match, &fm->match);
1732 ofputil_normalize_match(&fm->match);
1734 /* OpenFlow 1.0 says that exact-match rules have to have the
1735 * highest possible priority. */
1736 fm->priority = (ofm->match.wildcards & htonl(OFPFW10_ALL)
1737 ? ntohs(ofm->priority)
1740 /* Translate the message. */
1741 command = ntohs(ofm->command);
1742 fm->cookie = htonll(0);
1743 fm->cookie_mask = htonll(0);
1744 fm->new_cookie = ofm->cookie;
1745 fm->idle_timeout = ntohs(ofm->idle_timeout);
1746 fm->hard_timeout = ntohs(ofm->hard_timeout);
1748 fm->buffer_id = ntohl(ofm->buffer_id);
1749 fm->out_port = u16_to_ofp(ntohs(ofm->out_port));
1750 fm->out_group = OFPG11_ANY;
1751 raw_flags = ofm->flags;
1752 } else if (raw == OFPRAW_NXT_FLOW_MOD) {
1753 /* Nicira extended flow_mod. */
1754 const struct nx_flow_mod *nfm;
1756 /* Dissect the message. */
1757 nfm = ofpbuf_pull(&b, sizeof *nfm);
1758 error = nx_pull_match(&b, ntohs(nfm->match_len),
1759 &fm->match, &fm->cookie, &fm->cookie_mask);
1764 /* Translate the message. */
1765 command = ntohs(nfm->command);
1766 if ((command & 0xff) == OFPFC_ADD && fm->cookie_mask) {
1767 /* Flow additions may only set a new cookie, not match an
1768 * existing cookie. */
1769 return OFPERR_NXBRC_NXM_INVALID;
1771 fm->priority = ntohs(nfm->priority);
1772 fm->new_cookie = nfm->cookie;
1773 fm->idle_timeout = ntohs(nfm->idle_timeout);
1774 fm->hard_timeout = ntohs(nfm->hard_timeout);
1776 fm->buffer_id = ntohl(nfm->buffer_id);
1777 fm->out_port = u16_to_ofp(ntohs(nfm->out_port));
1778 fm->out_group = OFPG11_ANY;
1779 raw_flags = nfm->flags;
1784 fm->modify_cookie = fm->new_cookie != OVS_BE64_MAX;
1785 if (protocol & OFPUTIL_P_TID) {
1786 fm->command = command & 0xff;
1787 fm->table_id = command >> 8;
1789 fm->command = command;
1790 fm->table_id = 0xff;
1794 error = ofpacts_pull_openflow_instructions(&b, b.size,
1795 oh->version, ofpacts);
1799 fm->ofpacts = ofpacts->data;
1800 fm->ofpacts_len = ofpacts->size;
1802 error = ofputil_decode_flow_mod_flags(raw_flags, fm->command,
1803 oh->version, &fm->flags);
1808 if (fm->flags & OFPUTIL_FF_EMERG) {
1809 /* We do not support the OpenFlow 1.0 emergency flow cache, which
1810 * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1.
1812 * OpenFlow 1.0 specifies the error code to use when idle_timeout
1813 * or hard_timeout is nonzero. Otherwise, there is no good error
1814 * code, so just state that the flow table is full. */
1815 return (fm->hard_timeout || fm->idle_timeout
1816 ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT
1817 : OFPERR_OFPFMFC_TABLE_FULL);
1820 return ofpacts_check_consistency(fm->ofpacts, fm->ofpacts_len,
1821 &fm->match.flow, max_port,
1822 fm->table_id, max_table, protocol);
1826 ofputil_pull_bands(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
1827 struct ofpbuf *bands)
1829 const struct ofp13_meter_band_header *ombh;
1830 struct ofputil_meter_band *mb;
1833 ombh = ofpbuf_try_pull(msg, len);
1835 return OFPERR_OFPBRC_BAD_LEN;
1838 while (len >= sizeof (struct ofp13_meter_band_drop)) {
1839 size_t ombh_len = ntohs(ombh->len);
1840 /* All supported band types have the same length. */
1841 if (ombh_len != sizeof (struct ofp13_meter_band_drop)) {
1842 return OFPERR_OFPBRC_BAD_LEN;
1844 mb = ofpbuf_put_uninit(bands, sizeof *mb);
1845 mb->type = ntohs(ombh->type);
1846 if (mb->type != OFPMBT13_DROP && mb->type != OFPMBT13_DSCP_REMARK) {
1847 return OFPERR_OFPMMFC_BAD_BAND;
1849 mb->rate = ntohl(ombh->rate);
1850 mb->burst_size = ntohl(ombh->burst_size);
1851 mb->prec_level = (mb->type == OFPMBT13_DSCP_REMARK) ?
1852 ((struct ofp13_meter_band_dscp_remark *)ombh)->prec_level : 0;
1855 ombh = ALIGNED_CAST(struct ofp13_meter_band_header *,
1856 (char *) ombh + ombh_len);
1859 return OFPERR_OFPBRC_BAD_LEN;
1866 ofputil_decode_meter_mod(const struct ofp_header *oh,
1867 struct ofputil_meter_mod *mm,
1868 struct ofpbuf *bands)
1870 const struct ofp13_meter_mod *omm;
1873 ofpbuf_use_const(&b, oh, ntohs(oh->length));
1874 ofpraw_pull_assert(&b);
1875 omm = ofpbuf_pull(&b, sizeof *omm);
1877 /* Translate the message. */
1878 mm->command = ntohs(omm->command);
1879 if (mm->command != OFPMC13_ADD &&
1880 mm->command != OFPMC13_MODIFY &&
1881 mm->command != OFPMC13_DELETE) {
1882 return OFPERR_OFPMMFC_BAD_COMMAND;
1884 mm->meter.meter_id = ntohl(omm->meter_id);
1886 if (mm->command == OFPMC13_DELETE) {
1887 mm->meter.flags = 0;
1888 mm->meter.n_bands = 0;
1889 mm->meter.bands = NULL;
1893 mm->meter.flags = ntohs(omm->flags);
1894 if (mm->meter.flags & OFPMF13_KBPS &&
1895 mm->meter.flags & OFPMF13_PKTPS) {
1896 return OFPERR_OFPMMFC_BAD_FLAGS;
1898 mm->meter.bands = bands->data;
1900 error = ofputil_pull_bands(&b, b.size, &mm->meter.n_bands, bands);
1909 ofputil_decode_meter_request(const struct ofp_header *oh, uint32_t *meter_id)
1911 const struct ofp13_meter_multipart_request *omr = ofpmsg_body(oh);
1912 *meter_id = ntohl(omr->meter_id);
1916 ofputil_encode_meter_request(enum ofp_version ofp_version,
1917 enum ofputil_meter_request_type type,
1925 case OFPUTIL_METER_CONFIG:
1926 raw = OFPRAW_OFPST13_METER_CONFIG_REQUEST;
1928 case OFPUTIL_METER_STATS:
1929 raw = OFPRAW_OFPST13_METER_REQUEST;
1932 case OFPUTIL_METER_FEATURES:
1933 raw = OFPRAW_OFPST13_METER_FEATURES_REQUEST;
1937 msg = ofpraw_alloc(raw, ofp_version, 0);
1939 if (type != OFPUTIL_METER_FEATURES) {
1940 struct ofp13_meter_multipart_request *omr;
1941 omr = ofpbuf_put_zeros(msg, sizeof *omr);
1942 omr->meter_id = htonl(meter_id);
1948 ofputil_put_bands(uint16_t n_bands, const struct ofputil_meter_band *mb,
1953 for (n = 0; n < n_bands; ++n) {
1954 /* Currently all band types have same size. */
1955 struct ofp13_meter_band_dscp_remark *ombh;
1956 size_t ombh_len = sizeof *ombh;
1958 ombh = ofpbuf_put_zeros(msg, ombh_len);
1960 ombh->type = htons(mb->type);
1961 ombh->len = htons(ombh_len);
1962 ombh->rate = htonl(mb->rate);
1963 ombh->burst_size = htonl(mb->burst_size);
1964 ombh->prec_level = mb->prec_level;
1970 /* Encode a meter stat for 'mc' and append it to 'replies'. */
1972 ofputil_append_meter_config(struct ovs_list *replies,
1973 const struct ofputil_meter_config *mc)
1975 struct ofpbuf *msg = ofpbuf_from_list(list_back(replies));
1976 size_t start_ofs = msg->size;
1977 struct ofp13_meter_config *reply = ofpbuf_put_uninit(msg, sizeof *reply);
1978 reply->flags = htons(mc->flags);
1979 reply->meter_id = htonl(mc->meter_id);
1981 ofputil_put_bands(mc->n_bands, mc->bands, msg);
1983 reply->length = htons(msg->size - start_ofs);
1985 ofpmp_postappend(replies, start_ofs);
1988 /* Encode a meter stat for 'ms' and append it to 'replies'. */
1990 ofputil_append_meter_stats(struct ovs_list *replies,
1991 const struct ofputil_meter_stats *ms)
1993 struct ofp13_meter_stats *reply;
1997 len = sizeof *reply + ms->n_bands * sizeof(struct ofp13_meter_band_stats);
1998 reply = ofpmp_append(replies, len);
2000 reply->meter_id = htonl(ms->meter_id);
2001 reply->len = htons(len);
2002 memset(reply->pad, 0, sizeof reply->pad);
2003 reply->flow_count = htonl(ms->flow_count);
2004 reply->packet_in_count = htonll(ms->packet_in_count);
2005 reply->byte_in_count = htonll(ms->byte_in_count);
2006 reply->duration_sec = htonl(ms->duration_sec);
2007 reply->duration_nsec = htonl(ms->duration_nsec);
2009 for (n = 0; n < ms->n_bands; ++n) {
2010 const struct ofputil_meter_band_stats *src = &ms->bands[n];
2011 struct ofp13_meter_band_stats *dst = &reply->band_stats[n];
2013 dst->packet_band_count = htonll(src->packet_count);
2014 dst->byte_band_count = htonll(src->byte_count);
2018 /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract
2019 * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into
2020 * 'bands'. The caller must have initialized 'bands' and retains ownership of
2021 * it across the call.
2023 * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow
2024 * message. Calling this function multiple times for a single 'msg' iterates
2025 * through the replies. 'bands' is cleared for each reply.
2027 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2028 * otherwise a positive errno value. */
2030 ofputil_decode_meter_config(struct ofpbuf *msg,
2031 struct ofputil_meter_config *mc,
2032 struct ofpbuf *bands)
2034 const struct ofp13_meter_config *omc;
2037 /* Pull OpenFlow headers for the first call. */
2039 ofpraw_pull_assert(msg);
2046 omc = ofpbuf_try_pull(msg, sizeof *omc);
2048 VLOG_WARN_RL(&bad_ofmsg_rl,
2049 "OFPMP_METER_CONFIG reply has %"PRIu32" leftover bytes at end",
2051 return OFPERR_OFPBRC_BAD_LEN;
2054 ofpbuf_clear(bands);
2055 err = ofputil_pull_bands(msg, ntohs(omc->length) - sizeof *omc,
2056 &mc->n_bands, bands);
2060 mc->meter_id = ntohl(omc->meter_id);
2061 mc->flags = ntohs(omc->flags);
2062 mc->bands = bands->data;
2068 ofputil_pull_band_stats(struct ofpbuf *msg, size_t len, uint16_t *n_bands,
2069 struct ofpbuf *bands)
2071 const struct ofp13_meter_band_stats *ombs;
2072 struct ofputil_meter_band_stats *mbs;
2075 ombs = ofpbuf_try_pull(msg, len);
2077 return OFPERR_OFPBRC_BAD_LEN;
2080 n = len / sizeof *ombs;
2081 if (len != n * sizeof *ombs) {
2082 return OFPERR_OFPBRC_BAD_LEN;
2085 mbs = ofpbuf_put_uninit(bands, len);
2087 for (i = 0; i < n; ++i) {
2088 mbs[i].packet_count = ntohll(ombs[i].packet_band_count);
2089 mbs[i].byte_count = ntohll(ombs[i].byte_band_count);
2095 /* Converts an OFPMP_METER reply in 'msg' into an abstract
2096 * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats
2097 * decoded into 'bands'.
2099 * Multiple OFPMP_METER replies can be packed into a single OpenFlow
2100 * message. Calling this function multiple times for a single 'msg' iterates
2101 * through the replies. 'bands' is cleared for each reply.
2103 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2104 * otherwise a positive errno value. */
2106 ofputil_decode_meter_stats(struct ofpbuf *msg,
2107 struct ofputil_meter_stats *ms,
2108 struct ofpbuf *bands)
2110 const struct ofp13_meter_stats *oms;
2113 /* Pull OpenFlow headers for the first call. */
2115 ofpraw_pull_assert(msg);
2122 oms = ofpbuf_try_pull(msg, sizeof *oms);
2124 VLOG_WARN_RL(&bad_ofmsg_rl,
2125 "OFPMP_METER reply has %"PRIu32" leftover bytes at end",
2127 return OFPERR_OFPBRC_BAD_LEN;
2130 ofpbuf_clear(bands);
2131 err = ofputil_pull_band_stats(msg, ntohs(oms->len) - sizeof *oms,
2132 &ms->n_bands, bands);
2136 ms->meter_id = ntohl(oms->meter_id);
2137 ms->flow_count = ntohl(oms->flow_count);
2138 ms->packet_in_count = ntohll(oms->packet_in_count);
2139 ms->byte_in_count = ntohll(oms->byte_in_count);
2140 ms->duration_sec = ntohl(oms->duration_sec);
2141 ms->duration_nsec = ntohl(oms->duration_nsec);
2142 ms->bands = bands->data;
2148 ofputil_decode_meter_features(const struct ofp_header *oh,
2149 struct ofputil_meter_features *mf)
2151 const struct ofp13_meter_features *omf = ofpmsg_body(oh);
2153 mf->max_meters = ntohl(omf->max_meter);
2154 mf->band_types = ntohl(omf->band_types);
2155 mf->capabilities = ntohl(omf->capabilities);
2156 mf->max_bands = omf->max_bands;
2157 mf->max_color = omf->max_color;
2161 ofputil_encode_meter_features_reply(const struct ofputil_meter_features *mf,
2162 const struct ofp_header *request)
2164 struct ofpbuf *reply;
2165 struct ofp13_meter_features *omf;
2167 reply = ofpraw_alloc_stats_reply(request, 0);
2168 omf = ofpbuf_put_zeros(reply, sizeof *omf);
2170 omf->max_meter = htonl(mf->max_meters);
2171 omf->band_types = htonl(mf->band_types);
2172 omf->capabilities = htonl(mf->capabilities);
2173 omf->max_bands = mf->max_bands;
2174 omf->max_color = mf->max_color;
2180 ofputil_encode_meter_mod(enum ofp_version ofp_version,
2181 const struct ofputil_meter_mod *mm)
2185 struct ofp13_meter_mod *omm;
2187 msg = ofpraw_alloc(OFPRAW_OFPT13_METER_MOD, ofp_version,
2188 NXM_TYPICAL_LEN + mm->meter.n_bands * 16);
2189 omm = ofpbuf_put_zeros(msg, sizeof *omm);
2190 omm->command = htons(mm->command);
2191 if (mm->command != OFPMC13_DELETE) {
2192 omm->flags = htons(mm->meter.flags);
2194 omm->meter_id = htonl(mm->meter.meter_id);
2196 ofputil_put_bands(mm->meter.n_bands, mm->meter.bands, msg);
2198 ofpmsg_update_length(msg);
2203 ofputil_tid_command(const struct ofputil_flow_mod *fm,
2204 enum ofputil_protocol protocol)
2206 return htons(protocol & OFPUTIL_P_TID
2207 ? (fm->command & 0xff) | (fm->table_id << 8)
2211 /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
2212 * 'protocol' and returns the message. */
2214 ofputil_encode_flow_mod(const struct ofputil_flow_mod *fm,
2215 enum ofputil_protocol protocol)
2217 enum ofp_version version = ofputil_protocol_to_ofp_version(protocol);
2218 ovs_be16 raw_flags = ofputil_encode_flow_mod_flags(fm->flags, version);
2222 case OFPUTIL_P_OF11_STD:
2223 case OFPUTIL_P_OF12_OXM:
2224 case OFPUTIL_P_OF13_OXM:
2225 case OFPUTIL_P_OF14_OXM:
2226 case OFPUTIL_P_OF15_OXM: {
2227 struct ofp11_flow_mod *ofm;
2230 tailroom = ofputil_match_typical_len(protocol) + fm->ofpacts_len;
2231 msg = ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD, version, tailroom);
2232 ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
2233 if ((protocol == OFPUTIL_P_OF11_STD
2234 && (fm->command == OFPFC_MODIFY ||
2235 fm->command == OFPFC_MODIFY_STRICT)
2236 && fm->cookie_mask == htonll(0))
2237 || fm->command == OFPFC_ADD) {
2238 ofm->cookie = fm->new_cookie;
2240 ofm->cookie = fm->cookie & fm->cookie_mask;
2242 ofm->cookie_mask = fm->cookie_mask;
2243 if (fm->table_id != OFPTT_ALL
2244 || (protocol != OFPUTIL_P_OF11_STD
2245 && (fm->command == OFPFC_DELETE ||
2246 fm->command == OFPFC_DELETE_STRICT))) {
2247 ofm->table_id = fm->table_id;
2251 ofm->command = fm->command;
2252 ofm->idle_timeout = htons(fm->idle_timeout);
2253 ofm->hard_timeout = htons(fm->hard_timeout);
2254 ofm->priority = htons(fm->priority);
2255 ofm->buffer_id = htonl(fm->buffer_id);
2256 ofm->out_port = ofputil_port_to_ofp11(fm->out_port);
2257 ofm->out_group = htonl(fm->out_group);
2258 ofm->flags = raw_flags;
2259 if (version >= OFP14_VERSION && fm->command == OFPFC_ADD) {
2260 ofm->importance = htons(fm->importance);
2262 ofm->importance = 0;
2264 ofputil_put_ofp11_match(msg, &fm->match, protocol);
2265 ofpacts_put_openflow_instructions(fm->ofpacts, fm->ofpacts_len, msg,
2270 case OFPUTIL_P_OF10_STD:
2271 case OFPUTIL_P_OF10_STD_TID: {
2272 struct ofp10_flow_mod *ofm;
2274 msg = ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD, OFP10_VERSION,
2276 ofm = ofpbuf_put_zeros(msg, sizeof *ofm);
2277 ofputil_match_to_ofp10_match(&fm->match, &ofm->match);
2278 ofm->cookie = fm->new_cookie;
2279 ofm->command = ofputil_tid_command(fm, protocol);
2280 ofm->idle_timeout = htons(fm->idle_timeout);
2281 ofm->hard_timeout = htons(fm->hard_timeout);
2282 ofm->priority = htons(fm->priority);
2283 ofm->buffer_id = htonl(fm->buffer_id);
2284 ofm->out_port = htons(ofp_to_u16(fm->out_port));
2285 ofm->flags = raw_flags;
2286 ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
2291 case OFPUTIL_P_OF10_NXM:
2292 case OFPUTIL_P_OF10_NXM_TID: {
2293 struct nx_flow_mod *nfm;
2296 msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MOD, OFP10_VERSION,
2297 NXM_TYPICAL_LEN + fm->ofpacts_len);
2298 nfm = ofpbuf_put_zeros(msg, sizeof *nfm);
2299 nfm->command = ofputil_tid_command(fm, protocol);
2300 nfm->cookie = fm->new_cookie;
2301 match_len = nx_put_match(msg, &fm->match, fm->cookie, fm->cookie_mask);
2303 nfm->idle_timeout = htons(fm->idle_timeout);
2304 nfm->hard_timeout = htons(fm->hard_timeout);
2305 nfm->priority = htons(fm->priority);
2306 nfm->buffer_id = htonl(fm->buffer_id);
2307 nfm->out_port = htons(ofp_to_u16(fm->out_port));
2308 nfm->flags = raw_flags;
2309 nfm->match_len = htons(match_len);
2310 ofpacts_put_openflow_actions(fm->ofpacts, fm->ofpacts_len, msg,
2319 ofpmsg_update_length(msg);
2324 ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request *fsr,
2325 const struct ofp10_flow_stats_request *ofsr,
2328 fsr->aggregate = aggregate;
2329 ofputil_match_from_ofp10_match(&ofsr->match, &fsr->match);
2330 fsr->out_port = u16_to_ofp(ntohs(ofsr->out_port));
2331 fsr->out_group = OFPG11_ANY;
2332 fsr->table_id = ofsr->table_id;
2333 fsr->cookie = fsr->cookie_mask = htonll(0);
2339 ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request *fsr,
2340 struct ofpbuf *b, bool aggregate)
2342 const struct ofp11_flow_stats_request *ofsr;
2345 ofsr = ofpbuf_pull(b, sizeof *ofsr);
2346 fsr->aggregate = aggregate;
2347 fsr->table_id = ofsr->table_id;
2348 error = ofputil_port_from_ofp11(ofsr->out_port, &fsr->out_port);
2352 fsr->out_group = ntohl(ofsr->out_group);
2353 fsr->cookie = ofsr->cookie;
2354 fsr->cookie_mask = ofsr->cookie_mask;
2355 error = ofputil_pull_ofp11_match(b, &fsr->match, NULL);
2364 ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request *fsr,
2365 struct ofpbuf *b, bool aggregate)
2367 const struct nx_flow_stats_request *nfsr;
2370 nfsr = ofpbuf_pull(b, sizeof *nfsr);
2371 error = nx_pull_match(b, ntohs(nfsr->match_len), &fsr->match,
2372 &fsr->cookie, &fsr->cookie_mask);
2377 return OFPERR_OFPBRC_BAD_LEN;
2380 fsr->aggregate = aggregate;
2381 fsr->out_port = u16_to_ofp(ntohs(nfsr->out_port));
2382 fsr->out_group = OFPG11_ANY;
2383 fsr->table_id = nfsr->table_id;
2388 /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified
2389 * 'port', suitable for OpenFlow version 'version'. */
2391 ofputil_encode_queue_get_config_request(enum ofp_version version,
2394 struct ofpbuf *request;
2396 if (version == OFP10_VERSION) {
2397 struct ofp10_queue_get_config_request *qgcr10;
2399 request = ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST,
2401 qgcr10 = ofpbuf_put_zeros(request, sizeof *qgcr10);
2402 qgcr10->port = htons(ofp_to_u16(port));
2404 struct ofp11_queue_get_config_request *qgcr11;
2406 request = ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST,
2408 qgcr11 = ofpbuf_put_zeros(request, sizeof *qgcr11);
2409 qgcr11->port = ofputil_port_to_ofp11(port);
2415 /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the
2416 * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error
2419 ofputil_decode_queue_get_config_request(const struct ofp_header *oh,
2422 const struct ofp10_queue_get_config_request *qgcr10;
2423 const struct ofp11_queue_get_config_request *qgcr11;
2427 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2428 raw = ofpraw_pull_assert(&b);
2430 switch ((int) raw) {
2431 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST:
2433 *port = u16_to_ofp(ntohs(qgcr10->port));
2436 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST:
2438 return ofputil_port_from_ofp11(qgcr11->port, port);
2444 /* Constructs and returns the beginning of a reply to
2445 * OFPT_QUEUE_GET_CONFIG_REQUEST 'oh'. The caller may append information about
2446 * individual queues with ofputil_append_queue_get_config_reply(). */
2448 ofputil_encode_queue_get_config_reply(const struct ofp_header *oh)
2450 struct ofp10_queue_get_config_reply *qgcr10;
2451 struct ofp11_queue_get_config_reply *qgcr11;
2452 struct ofpbuf *reply;
2458 error = ofputil_decode_queue_get_config_request(oh, &port);
2461 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2462 raw = ofpraw_pull_assert(&b);
2464 switch ((int) raw) {
2465 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST:
2466 reply = ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY,
2468 qgcr10 = ofpbuf_put_zeros(reply, sizeof *qgcr10);
2469 qgcr10->port = htons(ofp_to_u16(port));
2472 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST:
2473 reply = ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY,
2475 qgcr11 = ofpbuf_put_zeros(reply, sizeof *qgcr11);
2476 qgcr11->port = ofputil_port_to_ofp11(port);
2487 put_queue_rate(struct ofpbuf *reply, enum ofp_queue_properties property,
2490 if (rate != UINT16_MAX) {
2491 struct ofp_queue_prop_rate *oqpr;
2493 oqpr = ofpbuf_put_zeros(reply, sizeof *oqpr);
2494 oqpr->prop_header.property = htons(property);
2495 oqpr->prop_header.len = htons(sizeof *oqpr);
2496 oqpr->rate = htons(rate);
2500 /* Appends a queue description for 'queue_id' to the
2501 * OFPT_QUEUE_GET_CONFIG_REPLY already in 'oh'. */
2503 ofputil_append_queue_get_config_reply(struct ofpbuf *reply,
2504 const struct ofputil_queue_config *oqc)
2506 const struct ofp_header *oh = reply->data;
2507 size_t start_ofs, len_ofs;
2510 start_ofs = reply->size;
2511 if (oh->version < OFP12_VERSION) {
2512 struct ofp10_packet_queue *opq10;
2514 opq10 = ofpbuf_put_zeros(reply, sizeof *opq10);
2515 opq10->queue_id = htonl(oqc->queue_id);
2516 len_ofs = (char *) &opq10->len - (char *) reply->data;
2518 struct ofp11_queue_get_config_reply *qgcr11;
2519 struct ofp12_packet_queue *opq12;
2522 qgcr11 = reply->msg;
2523 port = qgcr11->port;
2525 opq12 = ofpbuf_put_zeros(reply, sizeof *opq12);
2527 opq12->queue_id = htonl(oqc->queue_id);
2528 len_ofs = (char *) &opq12->len - (char *) reply->data;
2531 put_queue_rate(reply, OFPQT_MIN_RATE, oqc->min_rate);
2532 put_queue_rate(reply, OFPQT_MAX_RATE, oqc->max_rate);
2534 len = ofpbuf_at(reply, len_ofs, sizeof *len);
2535 *len = htons(reply->size - start_ofs);
2538 /* Decodes the initial part of an OFPT_QUEUE_GET_CONFIG_REPLY from 'reply' and
2539 * stores in '*port' the port that the reply is about. The caller may call
2540 * ofputil_pull_queue_get_config_reply() to obtain information about individual
2541 * queues included in the reply. Returns 0 if successful, otherwise an
2544 ofputil_decode_queue_get_config_reply(struct ofpbuf *reply, ofp_port_t *port)
2546 const struct ofp10_queue_get_config_reply *qgcr10;
2547 const struct ofp11_queue_get_config_reply *qgcr11;
2550 raw = ofpraw_pull_assert(reply);
2551 switch ((int) raw) {
2552 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY:
2553 qgcr10 = ofpbuf_pull(reply, sizeof *qgcr10);
2554 *port = u16_to_ofp(ntohs(qgcr10->port));
2557 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY:
2558 qgcr11 = ofpbuf_pull(reply, sizeof *qgcr11);
2559 return ofputil_port_from_ofp11(qgcr11->port, port);
2566 parse_queue_rate(const struct ofp_queue_prop_header *hdr, uint16_t *rate)
2568 const struct ofp_queue_prop_rate *oqpr;
2570 if (hdr->len == htons(sizeof *oqpr)) {
2571 oqpr = (const struct ofp_queue_prop_rate *) hdr;
2572 *rate = ntohs(oqpr->rate);
2575 return OFPERR_OFPBRC_BAD_LEN;
2579 /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in
2580 * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply()
2581 * must already have pulled off the main header.
2583 * This function returns EOF if the last queue has already been decoded, 0 if a
2584 * queue was successfully decoded into '*queue', or an ofperr if there was a
2585 * problem decoding 'reply'. */
2587 ofputil_pull_queue_get_config_reply(struct ofpbuf *reply,
2588 struct ofputil_queue_config *queue)
2590 const struct ofp_header *oh;
2591 unsigned int opq_len;
2598 queue->min_rate = UINT16_MAX;
2599 queue->max_rate = UINT16_MAX;
2602 if (oh->version < OFP12_VERSION) {
2603 const struct ofp10_packet_queue *opq10;
2605 opq10 = ofpbuf_try_pull(reply, sizeof *opq10);
2607 return OFPERR_OFPBRC_BAD_LEN;
2609 queue->queue_id = ntohl(opq10->queue_id);
2610 len = ntohs(opq10->len);
2611 opq_len = sizeof *opq10;
2613 const struct ofp12_packet_queue *opq12;
2615 opq12 = ofpbuf_try_pull(reply, sizeof *opq12);
2617 return OFPERR_OFPBRC_BAD_LEN;
2619 queue->queue_id = ntohl(opq12->queue_id);
2620 len = ntohs(opq12->len);
2621 opq_len = sizeof *opq12;
2624 if (len < opq_len || len > reply->size + opq_len || len % 8) {
2625 return OFPERR_OFPBRC_BAD_LEN;
2630 const struct ofp_queue_prop_header *hdr;
2631 unsigned int property;
2632 unsigned int prop_len;
2633 enum ofperr error = 0;
2635 hdr = ofpbuf_at_assert(reply, 0, sizeof *hdr);
2636 prop_len = ntohs(hdr->len);
2637 if (prop_len < sizeof *hdr || prop_len > reply->size || prop_len % 8) {
2638 return OFPERR_OFPBRC_BAD_LEN;
2641 property = ntohs(hdr->property);
2643 case OFPQT_MIN_RATE:
2644 error = parse_queue_rate(hdr, &queue->min_rate);
2647 case OFPQT_MAX_RATE:
2648 error = parse_queue_rate(hdr, &queue->max_rate);
2652 VLOG_INFO_RL(&bad_ofmsg_rl, "unknown queue property %u", property);
2659 ofpbuf_pull(reply, prop_len);
2665 /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
2666 * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
2667 * successful, otherwise an OpenFlow error code. */
2669 ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request *fsr,
2670 const struct ofp_header *oh)
2675 ofpbuf_use_const(&b, oh, ntohs(oh->length));
2676 raw = ofpraw_pull_assert(&b);
2677 switch ((int) raw) {
2678 case OFPRAW_OFPST10_FLOW_REQUEST:
2679 return ofputil_decode_ofpst10_flow_request(fsr, b.data, false);
2681 case OFPRAW_OFPST10_AGGREGATE_REQUEST:
2682 return ofputil_decode_ofpst10_flow_request(fsr, b.data, true);
2684 case OFPRAW_OFPST11_FLOW_REQUEST:
2685 return ofputil_decode_ofpst11_flow_request(fsr, &b, false);
2687 case OFPRAW_OFPST11_AGGREGATE_REQUEST:
2688 return ofputil_decode_ofpst11_flow_request(fsr, &b, true);
2690 case OFPRAW_NXST_FLOW_REQUEST:
2691 return ofputil_decode_nxst_flow_request(fsr, &b, false);
2693 case OFPRAW_NXST_AGGREGATE_REQUEST:
2694 return ofputil_decode_nxst_flow_request(fsr, &b, true);
2697 /* Hey, the caller lied. */
2702 /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW,
2703 * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to
2704 * 'protocol', and returns the message. */
2706 ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request *fsr,
2707 enum ofputil_protocol protocol)
2713 case OFPUTIL_P_OF11_STD:
2714 case OFPUTIL_P_OF12_OXM:
2715 case OFPUTIL_P_OF13_OXM:
2716 case OFPUTIL_P_OF14_OXM:
2717 case OFPUTIL_P_OF15_OXM: {
2718 struct ofp11_flow_stats_request *ofsr;
2720 raw = (fsr->aggregate
2721 ? OFPRAW_OFPST11_AGGREGATE_REQUEST
2722 : OFPRAW_OFPST11_FLOW_REQUEST);
2723 msg = ofpraw_alloc(raw, ofputil_protocol_to_ofp_version(protocol),
2724 ofputil_match_typical_len(protocol));
2725 ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
2726 ofsr->table_id = fsr->table_id;
2727 ofsr->out_port = ofputil_port_to_ofp11(fsr->out_port);
2728 ofsr->out_group = htonl(fsr->out_group);
2729 ofsr->cookie = fsr->cookie;
2730 ofsr->cookie_mask = fsr->cookie_mask;
2731 ofputil_put_ofp11_match(msg, &fsr->match, protocol);
2735 case OFPUTIL_P_OF10_STD:
2736 case OFPUTIL_P_OF10_STD_TID: {
2737 struct ofp10_flow_stats_request *ofsr;
2739 raw = (fsr->aggregate
2740 ? OFPRAW_OFPST10_AGGREGATE_REQUEST
2741 : OFPRAW_OFPST10_FLOW_REQUEST);
2742 msg = ofpraw_alloc(raw, OFP10_VERSION, 0);
2743 ofsr = ofpbuf_put_zeros(msg, sizeof *ofsr);
2744 ofputil_match_to_ofp10_match(&fsr->match, &ofsr->match);
2745 ofsr->table_id = fsr->table_id;
2746 ofsr->out_port = htons(ofp_to_u16(fsr->out_port));
2750 case OFPUTIL_P_OF10_NXM:
2751 case OFPUTIL_P_OF10_NXM_TID: {
2752 struct nx_flow_stats_request *nfsr;
2755 raw = (fsr->aggregate
2756 ? OFPRAW_NXST_AGGREGATE_REQUEST
2757 : OFPRAW_NXST_FLOW_REQUEST);
2758 msg = ofpraw_alloc(raw, OFP10_VERSION, NXM_TYPICAL_LEN);
2759 ofpbuf_put_zeros(msg, sizeof *nfsr);
2760 match_len = nx_put_match(msg, &fsr->match,
2761 fsr->cookie, fsr->cookie_mask);
2764 nfsr->out_port = htons(ofp_to_u16(fsr->out_port));
2765 nfsr->match_len = htons(match_len);
2766 nfsr->table_id = fsr->table_id;
2777 /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
2778 * ofputil_flow_stats in 'fs'.
2780 * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
2781 * OpenFlow message. Calling this function multiple times for a single 'msg'
2782 * iterates through the replies. The caller must initially leave 'msg''s layer
2783 * pointers null and not modify them between calls.
2785 * Most switches don't send the values needed to populate fs->idle_age and
2786 * fs->hard_age, so those members will usually be set to 0. If the switch from
2787 * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass
2788 * 'flow_age_extension' as true so that the contents of 'msg' determine the
2789 * 'idle_age' and 'hard_age' members in 'fs'.
2791 * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats
2792 * reply's actions. The caller must initialize 'ofpacts' and retains ownership
2793 * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer.
2795 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2796 * otherwise a positive errno value. */
2798 ofputil_decode_flow_stats_reply(struct ofputil_flow_stats *fs,
2800 bool flow_age_extension,
2801 struct ofpbuf *ofpacts)
2803 const struct ofp_header *oh;
2804 size_t instructions_len;
2808 error = (msg->header ? ofpraw_decode(&raw, msg->header)
2809 : ofpraw_pull(&raw, 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", msg->size);
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", msg->size);
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", msg->size);
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 = ofpacts->data;
2955 fs->ofpacts_len = ofpacts->size;
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 ovs_list *replies)
2977 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
2978 size_t start_ofs = reply->size;
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(reply->size - 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(reply->size - 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(reply->size - 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);
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,
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);
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 = b->data;
3294 pin->packet_len = b->size;
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.gbp_id = match->flow.tunnel.gbp_id;
3301 pin->fmd.gbp_flags = match->flow.tunnel.gbp_flags;
3302 pin->fmd.metadata = match->flow.metadata;
3303 memcpy(pin->fmd.regs, match->flow.regs, sizeof pin->fmd.regs);
3304 pin->fmd.pkt_mark = match->flow.pkt_mark;
3308 ofputil_decode_packet_in(struct ofputil_packet_in *pin,
3309 const struct ofp_header *oh)
3314 memset(pin, 0, sizeof *pin);
3315 pin->cookie = OVS_BE64_MAX;
3317 ofpbuf_use_const(&b, oh, ntohs(oh->length));
3318 raw = ofpraw_pull_assert(&b);
3319 if (raw == OFPRAW_OFPT13_PACKET_IN || raw == OFPRAW_OFPT12_PACKET_IN) {
3320 const struct ofp13_packet_in *opi;
3323 size_t packet_in_size;
3325 if (raw == OFPRAW_OFPT12_PACKET_IN) {
3326 packet_in_size = sizeof (struct ofp12_packet_in);
3328 packet_in_size = sizeof (struct ofp13_packet_in);
3331 opi = ofpbuf_pull(&b, packet_in_size);
3332 error = oxm_pull_match_loose(&b, &match);
3337 if (!ofpbuf_try_pull(&b, 2)) {
3338 return OFPERR_OFPBRC_BAD_LEN;
3341 pin->reason = opi->pi.reason;
3342 pin->table_id = opi->pi.table_id;
3343 pin->buffer_id = ntohl(opi->pi.buffer_id);
3344 pin->total_len = ntohs(opi->pi.total_len);
3346 if (raw == OFPRAW_OFPT13_PACKET_IN) {
3347 pin->cookie = opi->cookie;
3350 ofputil_decode_packet_in_finish(pin, &match, &b);
3351 } else if (raw == OFPRAW_OFPT10_PACKET_IN) {
3352 const struct ofp10_packet_in *opi;
3354 opi = ofpbuf_pull(&b, offsetof(struct ofp10_packet_in, data));
3356 pin->packet = opi->data;
3357 pin->packet_len = b.size;
3359 pin->fmd.in_port = u16_to_ofp(ntohs(opi->in_port));
3360 pin->reason = opi->reason;
3361 pin->buffer_id = ntohl(opi->buffer_id);
3362 pin->total_len = ntohs(opi->total_len);
3363 } else if (raw == OFPRAW_OFPT11_PACKET_IN) {
3364 const struct ofp11_packet_in *opi;
3367 opi = ofpbuf_pull(&b, sizeof *opi);
3369 pin->packet = b.data;
3370 pin->packet_len = b.size;
3372 pin->buffer_id = ntohl(opi->buffer_id);
3373 error = ofputil_port_from_ofp11(opi->in_port, &pin->fmd.in_port);
3377 pin->total_len = ntohs(opi->total_len);
3378 pin->reason = opi->reason;
3379 pin->table_id = opi->table_id;
3380 } else if (raw == OFPRAW_NXT_PACKET_IN) {
3381 const struct nx_packet_in *npi;
3385 npi = ofpbuf_pull(&b, sizeof *npi);
3386 error = nx_pull_match_loose(&b, ntohs(npi->match_len), &match, NULL,
3392 if (!ofpbuf_try_pull(&b, 2)) {
3393 return OFPERR_OFPBRC_BAD_LEN;
3396 pin->reason = npi->reason;
3397 pin->table_id = npi->table_id;
3398 pin->cookie = npi->cookie;
3400 pin->buffer_id = ntohl(npi->buffer_id);
3401 pin->total_len = ntohs(npi->total_len);
3403 ofputil_decode_packet_in_finish(pin, &match, &b);
3412 ofputil_packet_in_to_match(const struct ofputil_packet_in *pin,
3413 struct match *match)
3417 match_init_catchall(match);
3418 if (pin->fmd.tun_id != htonll(0)) {
3419 match_set_tun_id(match, pin->fmd.tun_id);
3421 if (pin->fmd.tun_src != htonl(0)) {
3422 match_set_tun_src(match, pin->fmd.tun_src);
3424 if (pin->fmd.tun_dst != htonl(0)) {
3425 match_set_tun_dst(match, pin->fmd.tun_dst);
3427 if (pin->fmd.gbp_id != htons(0)) {
3428 match_set_tun_gbp_id(match, pin->fmd.gbp_id);
3430 if (pin->fmd.gbp_flags) {
3431 match_set_tun_gbp_flags(match, pin->fmd.gbp_flags);
3433 if (pin->fmd.metadata != htonll(0)) {
3434 match_set_metadata(match, pin->fmd.metadata);
3437 for (i = 0; i < FLOW_N_REGS; i++) {
3438 if (pin->fmd.regs[i]) {
3439 match_set_reg(match, i, pin->fmd.regs[i]);
3443 if (pin->fmd.pkt_mark != 0) {
3444 match_set_pkt_mark(match, pin->fmd.pkt_mark);
3447 match_set_in_port(match, pin->fmd.in_port);
3450 static struct ofpbuf *
3451 ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in *pin)
3453 struct ofp10_packet_in *opi;
3454 struct ofpbuf *packet;
3456 packet = ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN, OFP10_VERSION,
3457 htonl(0), pin->packet_len);
3458 opi = ofpbuf_put_zeros(packet, offsetof(struct ofp10_packet_in, data));
3459 opi->total_len = htons(pin->total_len);
3460 opi->in_port = htons(ofp_to_u16(pin->fmd.in_port));
3461 opi->reason = pin->reason;
3462 opi->buffer_id = htonl(pin->buffer_id);
3464 ofpbuf_put(packet, pin->packet, pin->packet_len);
3469 static struct ofpbuf *
3470 ofputil_encode_nx_packet_in(const struct ofputil_packet_in *pin)
3472 struct nx_packet_in *npi;
3473 struct ofpbuf *packet;
3477 ofputil_packet_in_to_match(pin, &match);
3479 /* The final argument is just an estimate of the space required. */
3480 packet = ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN, OFP10_VERSION,
3481 htonl(0), (sizeof(struct flow_metadata) * 2
3482 + 2 + pin->packet_len));
3483 ofpbuf_put_zeros(packet, sizeof *npi);
3484 match_len = nx_put_match(packet, &match, 0, 0);
3485 ofpbuf_put_zeros(packet, 2);
3486 ofpbuf_put(packet, pin->packet, pin->packet_len);
3489 npi->buffer_id = htonl(pin->buffer_id);
3490 npi->total_len = htons(pin->total_len);
3491 npi->reason = pin->reason;
3492 npi->table_id = pin->table_id;
3493 npi->cookie = pin->cookie;
3494 npi->match_len = htons(match_len);
3499 static struct ofpbuf *
3500 ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in *pin)
3502 struct ofp11_packet_in *opi;
3503 struct ofpbuf *packet;
3505 packet = ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN, OFP11_VERSION,
3506 htonl(0), pin->packet_len);
3507 opi = ofpbuf_put_zeros(packet, sizeof *opi);
3508 opi->buffer_id = htonl(pin->buffer_id);
3509 opi->in_port = ofputil_port_to_ofp11(pin->fmd.in_port);
3510 opi->in_phy_port = opi->in_port;
3511 opi->total_len = htons(pin->total_len);
3512 opi->reason = pin->reason;
3513 opi->table_id = pin->table_id;
3515 ofpbuf_put(packet, pin->packet, pin->packet_len);
3520 static struct ofpbuf *
3521 ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in *pin,
3522 enum ofputil_protocol protocol)
3524 struct ofp13_packet_in *opi;
3526 enum ofpraw packet_in_raw;
3527 enum ofp_version packet_in_version;
3528 size_t packet_in_size;
3529 struct ofpbuf *packet;
3531 if (protocol == OFPUTIL_P_OF12_OXM) {
3532 packet_in_raw = OFPRAW_OFPT12_PACKET_IN;
3533 packet_in_version = OFP12_VERSION;
3534 packet_in_size = sizeof (struct ofp12_packet_in);
3536 packet_in_raw = OFPRAW_OFPT13_PACKET_IN;
3537 packet_in_version = ofputil_protocol_to_ofp_version(protocol);
3538 packet_in_size = sizeof (struct ofp13_packet_in);
3541 ofputil_packet_in_to_match(pin, &match);
3543 /* The final argument is just an estimate of the space required. */
3544 packet = ofpraw_alloc_xid(packet_in_raw, packet_in_version,
3545 htonl(0), (sizeof(struct flow_metadata) * 2
3546 + 2 + pin->packet_len));
3547 ofpbuf_put_zeros(packet, packet_in_size);
3548 oxm_put_match(packet, &match, ofputil_protocol_to_ofp_version(protocol));
3549 ofpbuf_put_zeros(packet, 2);
3550 ofpbuf_put(packet, pin->packet, pin->packet_len);
3553 opi->pi.buffer_id = htonl(pin->buffer_id);
3554 opi->pi.total_len = htons(pin->total_len);
3555 opi->pi.reason = pin->reason;
3556 opi->pi.table_id = pin->table_id;
3557 if (protocol != OFPUTIL_P_OF12_OXM) {
3558 opi->cookie = pin->cookie;
3564 /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
3565 * in the format specified by 'packet_in_format'. */
3567 ofputil_encode_packet_in(const struct ofputil_packet_in *pin,
3568 enum ofputil_protocol protocol,
3569 enum nx_packet_in_format packet_in_format)
3571 struct ofpbuf *packet;
3574 case OFPUTIL_P_OF10_STD:
3575 case OFPUTIL_P_OF10_STD_TID:
3576 case OFPUTIL_P_OF10_NXM:
3577 case OFPUTIL_P_OF10_NXM_TID:
3578 packet = (packet_in_format == NXPIF_NXM
3579 ? ofputil_encode_nx_packet_in(pin)
3580 : ofputil_encode_ofp10_packet_in(pin));
3583 case OFPUTIL_P_OF11_STD:
3584 packet = ofputil_encode_ofp11_packet_in(pin);
3587 case OFPUTIL_P_OF12_OXM:
3588 case OFPUTIL_P_OF13_OXM:
3589 case OFPUTIL_P_OF14_OXM:
3590 case OFPUTIL_P_OF15_OXM:
3591 packet = ofputil_encode_ofp12_packet_in(pin, protocol);
3598 ofpmsg_update_length(packet);
3602 /* Returns a string form of 'reason'. The return value is either a statically
3603 * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'.
3604 * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */
3606 ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason,
3607 char *reasonbuf, size_t bufsize)
3614 case OFPR_INVALID_TTL:
3615 return "invalid_ttl";
3616 case OFPR_ACTION_SET:
3617 return "action_set";
3620 case OFPR_PACKET_OUT:
3621 return "packet_out";
3623 case OFPR_N_REASONS:
3625 snprintf(reasonbuf, bufsize, "%d", (int) reason);
3631 ofputil_packet_in_reason_from_string(const char *s,
3632 enum ofp_packet_in_reason *reason)
3636 for (i = 0; i < OFPR_N_REASONS; i++) {
3637 char reasonbuf[OFPUTIL_PACKET_IN_REASON_BUFSIZE];
3638 const char *reason_s;
3640 reason_s = ofputil_packet_in_reason_to_string(i, reasonbuf,
3642 if (!strcasecmp(s, reason_s)) {
3650 /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in
3653 * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out
3654 * message's actions. The caller must initialize 'ofpacts' and retains
3655 * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer.
3657 * Returns 0 if successful, otherwise an OFPERR_* value. */
3659 ofputil_decode_packet_out(struct ofputil_packet_out *po,
3660 const struct ofp_header *oh,
3661 struct ofpbuf *ofpacts)
3666 ofpbuf_use_const(&b, oh, ntohs(oh->length));
3667 raw = ofpraw_pull_assert(&b);
3669 if (raw == OFPRAW_OFPT11_PACKET_OUT) {
3671 const struct ofp11_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
3673 po->buffer_id = ntohl(opo->buffer_id);
3674 error = ofputil_port_from_ofp11(opo->in_port, &po->in_port);
3679 error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
3680 oh->version, ofpacts);
3684 } else if (raw == OFPRAW_OFPT10_PACKET_OUT) {
3686 const struct ofp10_packet_out *opo = ofpbuf_pull(&b, sizeof *opo);
3688 po->buffer_id = ntohl(opo->buffer_id);
3689 po->in_port = u16_to_ofp(ntohs(opo->in_port));
3691 error = ofpacts_pull_openflow_actions(&b, ntohs(opo->actions_len),
3692 oh->version, ofpacts);
3700 if (ofp_to_u16(po->in_port) >= ofp_to_u16(OFPP_MAX)
3701 && po->in_port != OFPP_LOCAL
3702 && po->in_port != OFPP_NONE && po->in_port != OFPP_CONTROLLER) {
3703 VLOG_WARN_RL(&bad_ofmsg_rl, "packet-out has bad input port %#"PRIx16,
3705 return OFPERR_OFPBRC_BAD_PORT;
3708 po->ofpacts = ofpacts->data;
3709 po->ofpacts_len = ofpacts->size;
3711 if (po->buffer_id == UINT32_MAX) {
3712 po->packet = b.data;
3713 po->packet_len = b.size;
3722 /* ofputil_phy_port */
3724 /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
3725 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
3726 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
3727 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
3728 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
3729 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
3730 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
3731 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
3733 /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
3734 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == (OFPPF10_COPPER << 4));
3735 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == (OFPPF10_FIBER << 4));
3736 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == (OFPPF10_AUTONEG << 4));
3737 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == (OFPPF10_PAUSE << 4));
3738 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == (OFPPF10_PAUSE_ASYM << 4));
3740 static enum netdev_features
3741 netdev_port_features_from_ofp10(ovs_be32 ofp10_)
3743 uint32_t ofp10 = ntohl(ofp10_);
3744 return (ofp10 & 0x7f) | ((ofp10 & 0xf80) << 4);
3748 netdev_port_features_to_ofp10(enum netdev_features features)
3750 return htonl((features & 0x7f) | ((features & 0xf800) >> 4));
3753 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD == OFPPF_10MB_HD); /* bit 0 */
3754 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD == OFPPF_10MB_FD); /* bit 1 */
3755 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD == OFPPF_100MB_HD); /* bit 2 */
3756 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD == OFPPF_100MB_FD); /* bit 3 */
3757 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD == OFPPF_1GB_HD); /* bit 4 */
3758 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD == OFPPF_1GB_FD); /* bit 5 */
3759 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD == OFPPF_10GB_FD); /* bit 6 */
3760 BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD == OFPPF11_40GB_FD); /* bit 7 */
3761 BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD == OFPPF11_100GB_FD); /* bit 8 */
3762 BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD == OFPPF11_1TB_FD); /* bit 9 */
3763 BUILD_ASSERT_DECL((int) NETDEV_F_OTHER == OFPPF11_OTHER); /* bit 10 */
3764 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER == OFPPF11_COPPER); /* bit 11 */
3765 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER == OFPPF11_FIBER); /* bit 12 */
3766 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG == OFPPF11_AUTONEG); /* bit 13 */
3767 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE == OFPPF11_PAUSE); /* bit 14 */
3768 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM == OFPPF11_PAUSE_ASYM);/* bit 15 */
3770 static enum netdev_features
3771 netdev_port_features_from_ofp11(ovs_be32 ofp11)
3773 return ntohl(ofp11) & 0xffff;
3777 netdev_port_features_to_ofp11(enum netdev_features features)
3779 return htonl(features & 0xffff);
3783 ofputil_decode_ofp10_phy_port(struct ofputil_phy_port *pp,
3784 const struct ofp10_phy_port *opp)
3786 pp->port_no = u16_to_ofp(ntohs(opp->port_no));
3787 memcpy(pp->hw_addr, opp->hw_addr, OFP_ETH_ALEN);
3788 ovs_strlcpy(pp->name, opp->name, OFP_MAX_PORT_NAME_LEN);
3790 pp->config = ntohl(opp->config) & OFPPC10_ALL;
3791 pp->state = ntohl(opp->state) & OFPPS10_ALL;
3793 pp->curr = netdev_port_features_from_ofp10(opp->curr);
3794 pp->advertised = netdev_port_features_from_ofp10(opp->advertised);
3795 pp->supported = netdev_port_features_from_ofp10(opp->supported);
3796 pp->peer = netdev_port_features_from_ofp10(opp->peer);
3798 pp->curr_speed = netdev_features_to_bps(pp->curr, 0) / 1000;
3799 pp->max_speed = netdev_features_to_bps(pp->supported, 0) / 1000;
3805 ofputil_decode_ofp11_port(struct ofputil_phy_port *pp,
3806 const struct ofp11_port *op)
3810 error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
3814 memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN);
3815 ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN);
3817 pp->config = ntohl(op->config) & OFPPC11_ALL;
3818 pp->state = ntohl(op->state) & OFPPS11_ALL;
3820 pp->curr = netdev_port_features_from_ofp11(op->curr);
3821 pp->advertised = netdev_port_features_from_ofp11(op->advertised);
3822 pp->supported = netdev_port_features_from_ofp11(op->supported);
3823 pp->peer = netdev_port_features_from_ofp11(op->peer);
3825 pp->curr_speed = ntohl(op->curr_speed);
3826 pp->max_speed = ntohl(op->max_speed);
3832 parse_ofp14_port_ethernet_property(const struct ofpbuf *payload,
3833 struct ofputil_phy_port *pp)
3835 struct ofp14_port_desc_prop_ethernet *eth = payload->data;
3837 if (payload->size != sizeof *eth) {
3838 return OFPERR_OFPBPC_BAD_LEN;
3841 pp->curr = netdev_port_features_from_ofp11(eth->curr);
3842 pp->advertised = netdev_port_features_from_ofp11(eth->advertised);
3843 pp->supported = netdev_port_features_from_ofp11(eth->supported);
3844 pp->peer = netdev_port_features_from_ofp11(eth->peer);
3846 pp->curr_speed = ntohl(eth->curr_speed);
3847 pp->max_speed = ntohl(eth->max_speed);
3853 ofputil_pull_ofp14_port(struct ofputil_phy_port *pp, struct ofpbuf *msg)
3855 struct ofpbuf properties;
3856 struct ofp14_port *op;
3860 op = ofpbuf_try_pull(msg, sizeof *op);
3862 return OFPERR_OFPBRC_BAD_LEN;
3865 len = ntohs(op->length);
3866 if (len < sizeof *op || len - sizeof *op > msg->size) {
3867 return OFPERR_OFPBRC_BAD_LEN;
3870 ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len);
3872 error = ofputil_port_from_ofp11(op->port_no, &pp->port_no);
3876 memcpy(pp->hw_addr, op->hw_addr, OFP_ETH_ALEN);
3877 ovs_strlcpy(pp->name, op->name, OFP_MAX_PORT_NAME_LEN);
3879 pp->config = ntohl(op->config) & OFPPC11_ALL;
3880 pp->state = ntohl(op->state) & OFPPS11_ALL;
3882 while (properties.size > 0) {
3883 struct ofpbuf payload;
3887 error = ofputil_pull_property(&properties, &payload, &type);
3893 case OFPPDPT14_ETHERNET:
3894 error = parse_ofp14_port_ethernet_property(&payload, pp);
3898 log_property(true, "unknown port property %"PRIu16, type);
3912 ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port *pp,
3913 struct ofp10_phy_port *opp)
3915 memset(opp, 0, sizeof *opp);
3917 opp->port_no = htons(ofp_to_u16(pp->port_no));
3918 memcpy(opp->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
3919 ovs_strlcpy(opp->name, pp->name, OFP_MAX_PORT_NAME_LEN);
3921 opp->config = htonl(pp->config & OFPPC10_ALL);
3922 opp->state = htonl(pp->state & OFPPS10_ALL);
3924 opp->curr = netdev_port_features_to_ofp10(pp->curr);
3925 opp->advertised = netdev_port_features_to_ofp10(pp->advertised);
3926 opp->supported = netdev_port_features_to_ofp10(pp->supported);
3927 opp->peer = netdev_port_features_to_ofp10(pp->peer);
3931 ofputil_encode_ofp11_port(const struct ofputil_phy_port *pp,
3932 struct ofp11_port *op)
3934 memset(op, 0, sizeof *op);
3936 op->port_no = ofputil_port_to_ofp11(pp->port_no);
3937 memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
3938 ovs_strlcpy(op->name, pp->name, OFP_MAX_PORT_NAME_LEN);
3940 op->config = htonl(pp->config & OFPPC11_ALL);
3941 op->state = htonl(pp->state & OFPPS11_ALL);
3943 op->curr = netdev_port_features_to_ofp11(pp->curr);
3944 op->advertised = netdev_port_features_to_ofp11(pp->advertised);
3945 op->supported = netdev_port_features_to_ofp11(pp->supported);
3946 op->peer = netdev_port_features_to_ofp11(pp->peer);
3948 op->curr_speed = htonl(pp->curr_speed);
3949 op->max_speed = htonl(pp->max_speed);
3953 ofputil_put_ofp14_port(const struct ofputil_phy_port *pp,
3956 struct ofp14_port *op;
3957 struct ofp14_port_desc_prop_ethernet *eth;
3959 ofpbuf_prealloc_tailroom(b, sizeof *op + sizeof *eth);
3961 op = ofpbuf_put_zeros(b, sizeof *op);
3962 op->port_no = ofputil_port_to_ofp11(pp->port_no);
3963 op->length = htons(sizeof *op + sizeof *eth);
3964 memcpy(op->hw_addr, pp->hw_addr, ETH_ADDR_LEN);
3965 ovs_strlcpy(op->name, pp->name, sizeof op->name);
3966 op->config = htonl(pp->config & OFPPC11_ALL);
3967 op->state = htonl(pp->state & OFPPS11_ALL);
3969 eth = ofpbuf_put_zeros(b, sizeof *eth);
3970 eth->type = htons(OFPPDPT14_ETHERNET);
3971 eth->length = htons(sizeof *eth);
3972 eth->curr = netdev_port_features_to_ofp11(pp->curr);
3973 eth->advertised = netdev_port_features_to_ofp11(pp->advertised);
3974 eth->supported = netdev_port_features_to_ofp11(pp->supported);
3975 eth->peer = netdev_port_features_to_ofp11(pp->peer);
3976 eth->curr_speed = htonl(pp->curr_speed);
3977 eth->max_speed = htonl(pp->max_speed);
3981 ofputil_put_phy_port(enum ofp_version ofp_version,
3982 const struct ofputil_phy_port *pp, struct ofpbuf *b)
3984 switch (ofp_version) {
3985 case OFP10_VERSION: {
3986 struct ofp10_phy_port *opp = ofpbuf_put_uninit(b, sizeof *opp);
3987 ofputil_encode_ofp10_phy_port(pp, opp);
3993 case OFP13_VERSION: {
3994 struct ofp11_port *op = ofpbuf_put_uninit(b, sizeof *op);
3995 ofputil_encode_ofp11_port(pp, op);
4001 ofputil_put_ofp14_port(pp, b);
4010 ofputil_decode_port_desc_stats_request(const struct ofp_header *request,
4016 ofpbuf_use_const(&b, request, ntohs(request->length));
4017 raw = ofpraw_pull_assert(&b);
4018 if (raw == OFPRAW_OFPST10_PORT_DESC_REQUEST) {
4021 } else if (raw == OFPRAW_OFPST15_PORT_DESC_REQUEST) {
4022 ovs_be32 *ofp11_port;
4024 ofp11_port = ofpbuf_pull(&b, sizeof *ofp11_port);
4025 return ofputil_port_from_ofp11(*ofp11_port, port);
4032 ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version,
4035 struct ofpbuf *request;
4036 ovs_be32 ofp11_port;
4038 switch (ofp_version) {
4044 request = ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST,
4049 request = ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST,
4051 ofp11_port = ofputil_port_to_ofp11(port);
4052 ofpbuf_put(request, &ofp11_port, sizeof ofp11_port);
4063 ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port *pp,
4064 struct ovs_list *replies)
4066 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
4067 size_t start_ofs = reply->size;
4069 ofputil_put_phy_port(ofpmp_version(replies), pp, reply);
4070 ofpmp_postappend(replies, start_ofs);
4073 /* ofputil_switch_features */
4075 #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
4076 OFPC_IP_REASM | OFPC_QUEUE_STATS)
4077 BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS == OFPC_FLOW_STATS);
4078 BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS == OFPC_TABLE_STATS);
4079 BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS == OFPC_PORT_STATS);
4080 BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM == OFPC_IP_REASM);
4081 BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS == OFPC_QUEUE_STATS);
4082 BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP == OFPC_ARP_MATCH_IP);
4085 ofputil_capabilities_mask(enum ofp_version ofp_version)
4087 /* Handle capabilities whose bit is unique for all OpenFlow versions */
4088 switch (ofp_version) {
4091 return OFPC_COMMON | OFPC_ARP_MATCH_IP;
4096 return OFPC_COMMON | OFPC12_PORT_BLOCKED;
4098 /* Caller needs to check osf->header.version itself */
4103 /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an
4104 * abstract representation in '*features'. Initializes '*b' to iterate over
4105 * the OpenFlow port structures following 'osf' with later calls to
4106 * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an
4107 * OFPERR_* value. */
4109 ofputil_decode_switch_features(const struct ofp_header *oh,
4110 struct ofputil_switch_features *features,
4113 const struct ofp_switch_features *osf;
4116 ofpbuf_use_const(b, oh, ntohs(oh->length));
4117 raw = ofpraw_pull_assert(b);
4119 osf = ofpbuf_pull(b, sizeof *osf);
4120 features->datapath_id = ntohll(osf->datapath_id);
4121 features->n_buffers = ntohl(osf->n_buffers);
4122 features->n_tables = osf->n_tables;
4123 features->auxiliary_id = 0;
4125 features->capabilities = ntohl(osf->capabilities) &
4126 ofputil_capabilities_mask(oh->version);
4128 if (raw == OFPRAW_OFPT10_FEATURES_REPLY) {
4129 if (osf->capabilities & htonl(OFPC10_STP)) {
4130 features->capabilities |= OFPUTIL_C_STP;
4132 features->ofpacts = ofpact_bitmap_from_openflow(osf->actions,
4134 } else if (raw == OFPRAW_OFPT11_FEATURES_REPLY
4135 || raw == OFPRAW_OFPT13_FEATURES_REPLY) {
4136 if (osf->capabilities & htonl(OFPC11_GROUP_STATS)) {
4137 features->capabilities |= OFPUTIL_C_GROUP_STATS;
4139 features->ofpacts = 0;
4140 if (raw == OFPRAW_OFPT13_FEATURES_REPLY) {
4141 features->auxiliary_id = osf->auxiliary_id;
4144 return OFPERR_OFPBRC_BAD_VERSION;
4150 /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the
4151 * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and
4152 * later, an OFPT_FEATURES_REPLY does not list ports at all.
4154 * Given a buffer 'b' that contains a Features Reply message, this message
4155 * checks if it contains a complete list of the switch's ports. Returns true,
4156 * if so. Returns false if the list is missing (OF1.3+) or incomplete
4157 * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the
4160 * When this function returns false, the caller should send an OFPST_PORT_DESC
4161 * stats request to get the ports. */
4163 ofputil_switch_features_has_ports(struct ofpbuf *b)
4165 struct ofp_header *oh = b->data;
4166 size_t phy_port_size;
4168 if (oh->version >= OFP13_VERSION) {
4169 /* OpenFlow 1.3+ never has ports in the feature reply. */
4173 phy_port_size = (oh->version == OFP10_VERSION
4174 ? sizeof(struct ofp10_phy_port)
4175 : sizeof(struct ofp11_port));
4176 if (ntohs(oh->length) + phy_port_size <= UINT16_MAX) {
4177 /* There's room for additional ports in the feature reply.
4178 * Assume that the list is complete. */
4182 /* The feature reply has no room for more ports. Probably the list is
4183 * truncated. Drop the ports and tell the caller to retrieve them with
4184 * OFPST_PORT_DESC. */
4185 b->size = sizeof *oh + sizeof(struct ofp_switch_features);
4186 ofpmsg_update_length(b);
4190 /* Returns a buffer owned by the caller that encodes 'features' in the format
4191 * required by 'protocol' with the given 'xid'. The caller should append port
4192 * information to the buffer with subsequent calls to
4193 * ofputil_put_switch_features_port(). */
4195 ofputil_encode_switch_features(const struct ofputil_switch_features *features,
4196 enum ofputil_protocol protocol, ovs_be32 xid)
4198 struct ofp_switch_features *osf;
4200 enum ofp_version version;
4203 version = ofputil_protocol_to_ofp_version(protocol);
4206 raw = OFPRAW_OFPT10_FEATURES_REPLY;
4210 raw = OFPRAW_OFPT11_FEATURES_REPLY;
4215 raw = OFPRAW_OFPT13_FEATURES_REPLY;
4220 b = ofpraw_alloc_xid(raw, version, xid, 0);
4221 osf = ofpbuf_put_zeros(b, sizeof *osf);
4222 osf->datapath_id = htonll(features->datapath_id);
4223 osf->n_buffers = htonl(features->n_buffers);
4224 osf->n_tables = features->n_tables;
4226 osf->capabilities = htonl(features->capabilities & OFPC_COMMON);
4227 osf->capabilities = htonl(features->capabilities &
4228 ofputil_capabilities_mask(version));
4231 if (features->capabilities & OFPUTIL_C_STP) {
4232 osf->capabilities |= htonl(OFPC10_STP);
4234 osf->actions = ofpact_bitmap_to_openflow(features->ofpacts,
4240 osf->auxiliary_id = features->auxiliary_id;
4244 if (features->capabilities & OFPUTIL_C_GROUP_STATS) {
4245 osf->capabilities |= htonl(OFPC11_GROUP_STATS);
4255 /* Encodes 'pp' into the format required by the switch_features message already
4256 * in 'b', which should have been returned by ofputil_encode_switch_features(),
4257 * and appends the encoded version to 'b'. */
4259 ofputil_put_switch_features_port(const struct ofputil_phy_port *pp,
4262 const struct ofp_header *oh = b->data;
4264 if (oh->version < OFP13_VERSION) {
4265 /* Try adding a port description to the message, but drop it again if
4266 * the buffer overflows. (This possibility for overflow is why
4267 * OpenFlow 1.3+ moved port descriptions into a multipart message.) */
4268 size_t start_ofs = b->size;
4269 ofputil_put_phy_port(oh->version, pp, b);
4270 if (b->size > UINT16_MAX) {
4271 b->size = start_ofs;
4276 /* ofputil_port_status */
4278 /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
4279 * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
4281 ofputil_decode_port_status(const struct ofp_header *oh,
4282 struct ofputil_port_status *ps)
4284 const struct ofp_port_status *ops;
4288 ofpbuf_use_const(&b, oh, ntohs(oh->length));
4289 ofpraw_pull_assert(&b);
4290 ops = ofpbuf_pull(&b, sizeof *ops);
4292 if (ops->reason != OFPPR_ADD &&
4293 ops->reason != OFPPR_DELETE &&
4294 ops->reason != OFPPR_MODIFY) {
4295 return OFPERR_NXBRC_BAD_REASON;
4297 ps->reason = ops->reason;
4299 retval = ofputil_pull_phy_port(oh->version, &b, &ps->desc);
4300 ovs_assert(retval != EOF);
4304 /* Converts the abstract form of a "port status" message in '*ps' into an
4305 * OpenFlow message suitable for 'protocol', and returns that encoded form in
4306 * a buffer owned by the caller. */
4308 ofputil_encode_port_status(const struct ofputil_port_status *ps,
4309 enum ofputil_protocol protocol)
4311 struct ofp_port_status *ops;
4313 enum ofp_version version;
4316 version = ofputil_protocol_to_ofp_version(protocol);
4319 raw = OFPRAW_OFPT10_PORT_STATUS;
4325 raw = OFPRAW_OFPT11_PORT_STATUS;
4330 raw = OFPRAW_OFPT14_PORT_STATUS;
4337 b = ofpraw_alloc_xid(raw, version, htonl(0), 0);
4338 ops = ofpbuf_put_zeros(b, sizeof *ops);
4339 ops->reason = ps->reason;
4340 ofputil_put_phy_port(version, &ps->desc, b);
4341 ofpmsg_update_length(b);
4345 /* ofputil_port_mod */
4348 parse_port_mod_ethernet_property(struct ofpbuf *property,
4349 struct ofputil_port_mod *pm)
4351 struct ofp14_port_mod_prop_ethernet *eth = property->data;
4353 if (property->size != sizeof *eth) {
4354 return OFPERR_OFPBRC_BAD_LEN;
4357 pm->advertise = netdev_port_features_from_ofp11(eth->advertise);
4361 /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
4362 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
4364 ofputil_decode_port_mod(const struct ofp_header *oh,
4365 struct ofputil_port_mod *pm, bool loose)
4370 ofpbuf_use_const(&b, oh, ntohs(oh->length));
4371 raw = ofpraw_pull_assert(&b);
4373 if (raw == OFPRAW_OFPT10_PORT_MOD) {
4374 const struct ofp10_port_mod *opm = b.data;
4376 pm->port_no = u16_to_ofp(ntohs(opm->port_no));
4377 memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
4378 pm->config = ntohl(opm->config) & OFPPC10_ALL;
4379 pm->mask = ntohl(opm->mask) & OFPPC10_ALL;
4380 pm->advertise = netdev_port_features_from_ofp10(opm->advertise);
4381 } else if (raw == OFPRAW_OFPT11_PORT_MOD) {
4382 const struct ofp11_port_mod *opm = b.data;
4385 error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
4390 memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
4391 pm->config = ntohl(opm->config) & OFPPC11_ALL;
4392 pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
4393 pm->advertise = netdev_port_features_from_ofp11(opm->advertise);
4394 } else if (raw == OFPRAW_OFPT14_PORT_MOD) {
4395 const struct ofp14_port_mod *opm = ofpbuf_pull(&b, sizeof *opm);
4398 memset(pm, 0, sizeof *pm);
4400 error = ofputil_port_from_ofp11(opm->port_no, &pm->port_no);
4405 memcpy(pm->hw_addr, opm->hw_addr, ETH_ADDR_LEN);
4406 pm->config = ntohl(opm->config) & OFPPC11_ALL;
4407 pm->mask = ntohl(opm->mask) & OFPPC11_ALL;
4409 while (b.size > 0) {
4410 struct ofpbuf property;
4414 error = ofputil_pull_property(&b, &property, &type);
4420 case OFPPMPT14_ETHERNET:
4421 error = parse_port_mod_ethernet_property(&property, pm);
4425 log_property(loose, "unknown port_mod property %"PRIu16, type);
4428 } else if (type == OFPPMPT14_EXPERIMENTER) {
4429 error = OFPERR_OFPBPC_BAD_EXPERIMENTER;
4431 error = OFPERR_OFPBRC_BAD_TYPE;
4441 return OFPERR_OFPBRC_BAD_TYPE;
4444 pm->config &= pm->mask;
4448 /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
4449 * message suitable for 'protocol', and returns that encoded form in a buffer
4450 * owned by the caller. */
4452 ofputil_encode_port_mod(const struct ofputil_port_mod *pm,
4453 enum ofputil_protocol protocol)
4455 enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
4458 switch (ofp_version) {
4459 case OFP10_VERSION: {
4460 struct ofp10_port_mod *opm;
4462 b = ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD, ofp_version, 0);
4463 opm = ofpbuf_put_zeros(b, sizeof *opm);
4464 opm->port_no = htons(ofp_to_u16(pm->port_no));
4465 memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
4466 opm->config = htonl(pm->config & OFPPC10_ALL);
4467 opm->mask = htonl(pm->mask & OFPPC10_ALL);
4468 opm->advertise = netdev_port_features_to_ofp10(pm->advertise);
4474 case OFP13_VERSION: {
4475 struct ofp11_port_mod *opm;
4477 b = ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD, ofp_version, 0);
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);
4483 opm->advertise = netdev_port_features_to_ofp11(pm->advertise);
4487 case OFP15_VERSION: {
4488 struct ofp14_port_mod_prop_ethernet *eth;
4489 struct ofp14_port_mod *opm;
4491 b = ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD, ofp_version, sizeof *eth);
4492 opm = ofpbuf_put_zeros(b, sizeof *opm);
4493 opm->port_no = ofputil_port_to_ofp11(pm->port_no);
4494 memcpy(opm->hw_addr, pm->hw_addr, ETH_ADDR_LEN);
4495 opm->config = htonl(pm->config & OFPPC11_ALL);
4496 opm->mask = htonl(pm->mask & OFPPC11_ALL);
4498 if (pm->advertise) {
4499 eth = ofpbuf_put_zeros(b, sizeof *eth);
4500 eth->type = htons(OFPPMPT14_ETHERNET);
4501 eth->length = htons(sizeof *eth);
4502 eth->advertise = netdev_port_features_to_ofp11(pm->advertise);
4513 /* Table features. */
4516 pull_table_feature_property(struct ofpbuf *msg, struct ofpbuf *payload,
4521 error = ofputil_pull_property(msg, payload, typep);
4522 if (payload && !error) {
4523 ofpbuf_pull(payload, sizeof(struct ofp_prop_header));
4529 parse_action_bitmap(struct ofpbuf *payload, enum ofp_version ofp_version,
4534 while (payload->size > 0) {
4538 error = ofputil_pull_property__(payload, NULL, 1, &type);
4542 if (type < CHAR_BIT * sizeof types) {
4543 types |= 1u << type;
4547 *ofpacts = ofpact_bitmap_from_openflow(htonl(types), ofp_version);
4552 parse_instruction_ids(struct ofpbuf *payload, bool loose, uint32_t *insts)
4555 while (payload->size > 0) {
4556 enum ovs_instruction_type inst;
4560 /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs.
4561 * It seems clear that they aren't padded to 8 bytes, though, because
4562 * both standards say that "non-experimenter instructions are 4 bytes"
4563 * and do not mention any padding before the first instruction ID.
4564 * (There wouldn't be any point in padding to 8 bytes if the IDs were
4565 * aligned on an odd 4-byte boundary.)
4567 * Anyway, we just assume they're all glommed together on byte
4569 error = ofputil_pull_property__(payload, NULL, 1, &ofpit);
4574 error = ovs_instruction_type_from_inst_type(&inst, ofpit);
4576 *insts |= 1u << inst;
4577 } else if (!loose) {
4585 parse_table_features_next_table(struct ofpbuf *payload,
4586 unsigned long int *next_tables)
4590 memset(next_tables, 0, bitmap_n_bytes(255));
4591 for (i = 0; i < payload->size; i++) {
4592 uint8_t id = ((const uint8_t *) payload->data)[i];
4594 return OFPERR_OFPBPC_BAD_VALUE;
4596 bitmap_set1(next_tables, id);
4602 parse_oxms(struct ofpbuf *payload, bool loose,
4603 struct mf_bitmap *exactp, struct mf_bitmap *maskedp)
4605 struct mf_bitmap exact = MF_BITMAP_INITIALIZER;
4606 struct mf_bitmap masked = MF_BITMAP_INITIALIZER;
4608 while (payload->size > 0) {
4609 const struct mf_field *field;
4613 error = nx_pull_header(payload, &field, &hasmask);
4615 bitmap_set1(hasmask ? masked.bm : exact.bm, field->id);
4616 } else if (error != OFPERR_OFPBMC_BAD_FIELD || !loose) {
4622 } else if (!bitmap_is_all_zeros(exact.bm, MFF_N_IDS)) {
4623 return OFPERR_OFPBMC_BAD_MASK;
4627 } else if (!bitmap_is_all_zeros(masked.bm, MFF_N_IDS)) {
4628 return OFPERR_OFPBMC_BAD_MASK;
4633 /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract
4634 * ofputil_table_features in 'tf'.
4636 * If 'loose' is true, this function ignores properties and values that it does
4637 * not understand, as a controller would want to do when interpreting
4638 * capabilities provided by a switch. If 'loose' is false, this function
4639 * treats unknown properties and values as an error, as a switch would want to
4640 * do when interpreting a configuration request made by a controller.
4642 * A single OpenFlow message can specify features for multiple tables. Calling
4643 * this function multiple times for a single 'msg' iterates through the tables
4644 * in the message. The caller must initially leave 'msg''s layer pointers null
4645 * and not modify them between calls.
4647 * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise
4648 * a positive "enum ofperr" value. */
4650 ofputil_decode_table_features(struct ofpbuf *msg,
4651 struct ofputil_table_features *tf, bool loose)
4653 const struct ofp_header *oh;
4654 struct ofp13_table_features *otf;
4655 struct ofpbuf properties;
4658 memset(tf, 0, sizeof *tf);
4661 ofpraw_pull_assert(msg);
4669 if (msg->size < sizeof *otf) {
4670 return OFPERR_OFPBPC_BAD_LEN;
4674 len = ntohs(otf->length);
4675 if (len < sizeof *otf || len % 8 || len > msg->size) {
4676 return OFPERR_OFPBPC_BAD_LEN;
4678 ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len);
4679 ofpbuf_pull(&properties, sizeof *otf);
4681 tf->table_id = otf->table_id;
4682 if (tf->table_id == OFPTT_ALL) {
4683 return OFPERR_OFPTFFC_BAD_TABLE;
4686 ovs_strlcpy(tf->name, otf->name, OFP_MAX_TABLE_NAME_LEN);
4687 tf->metadata_match = otf->metadata_match;
4688 tf->metadata_write = otf->metadata_write;
4689 tf->miss_config = ofputil_table_miss_from_config(otf->config, oh->version);
4690 tf->max_entries = ntohl(otf->max_entries);
4692 while (properties.size > 0) {
4693 struct ofpbuf payload;
4697 error = pull_table_feature_property(&properties, &payload, &type);
4702 switch ((enum ofp13_table_feature_prop_type) type) {
4703 case OFPTFPT13_INSTRUCTIONS:
4704 error = parse_instruction_ids(&payload, loose,
4705 &tf->nonmiss.instructions);
4707 case OFPTFPT13_INSTRUCTIONS_MISS:
4708 error = parse_instruction_ids(&payload, loose,
4709 &tf->miss.instructions);
4712 case OFPTFPT13_NEXT_TABLES:
4713 error = parse_table_features_next_table(&payload,
4716 case OFPTFPT13_NEXT_TABLES_MISS:
4717 error = parse_table_features_next_table(&payload, tf->miss.next);
4720 case OFPTFPT13_WRITE_ACTIONS:
4721 error = parse_action_bitmap(&payload, oh->version,
4722 &tf->nonmiss.write.ofpacts);
4724 case OFPTFPT13_WRITE_ACTIONS_MISS:
4725 error = parse_action_bitmap(&payload, oh->version,
4726 &tf->miss.write.ofpacts);
4729 case OFPTFPT13_APPLY_ACTIONS:
4730 error = parse_action_bitmap(&payload, oh->version,
4731 &tf->nonmiss.apply.ofpacts);
4733 case OFPTFPT13_APPLY_ACTIONS_MISS:
4734 error = parse_action_bitmap(&payload, oh->version,
4735 &tf->miss.apply.ofpacts);
4738 case OFPTFPT13_MATCH:
4739 error = parse_oxms(&payload, loose, &tf->match, &tf->mask);
4741 case OFPTFPT13_WILDCARDS:
4742 error = parse_oxms(&payload, loose, &tf->wildcard, NULL);
4745 case OFPTFPT13_WRITE_SETFIELD:
4746 error = parse_oxms(&payload, loose,
4747 &tf->nonmiss.write.set_fields, NULL);
4749 case OFPTFPT13_WRITE_SETFIELD_MISS:
4750 error = parse_oxms(&payload, loose,
4751 &tf->miss.write.set_fields, NULL);
4753 case OFPTFPT13_APPLY_SETFIELD:
4754 error = parse_oxms(&payload, loose,
4755 &tf->nonmiss.apply.set_fields, NULL);
4757 case OFPTFPT13_APPLY_SETFIELD_MISS:
4758 error = parse_oxms(&payload, loose,
4759 &tf->miss.apply.set_fields, NULL);
4762 case OFPTFPT13_EXPERIMENTER:
4763 case OFPTFPT13_EXPERIMENTER_MISS:
4765 log_property(loose, "unknown table features property %"PRIu16,
4767 error = loose ? 0 : OFPERR_OFPBPC_BAD_TYPE;
4775 /* Fix inconsistencies:
4777 * - Turn on 'match' bits that are set in 'mask', because maskable
4778 * fields are matchable.
4780 * - Turn on 'wildcard' bits that are set in 'mask', because a field
4781 * that is arbitrarily maskable can be wildcarded entirely.
4783 * - Turn off 'wildcard' bits that are not in 'match', because a field
4784 * must be matchable for it to be meaningfully wildcarded. */
4785 bitmap_or(tf->match.bm, tf->mask.bm, MFF_N_IDS);
4786 bitmap_or(tf->wildcard.bm, tf->mask.bm, MFF_N_IDS);
4787 bitmap_and(tf->wildcard.bm, tf->match.bm, MFF_N_IDS);
4792 /* Encodes and returns a request to obtain the table features of a switch.
4793 * The message is encoded for OpenFlow version 'ofp_version'. */
4795 ofputil_encode_table_features_request(enum ofp_version ofp_version)
4797 struct ofpbuf *request = NULL;
4799 switch (ofp_version) {
4803 ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later "
4804 "(\'-O OpenFlow13\')");
4808 request = ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST,
4819 put_fields_property(struct ofpbuf *reply,
4820 const struct mf_bitmap *fields,
4821 const struct mf_bitmap *masks,
4822 enum ofp13_table_feature_prop_type property,
4823 enum ofp_version version)
4828 start_ofs = start_property(reply, property);
4829 BITMAP_FOR_EACH_1 (field, MFF_N_IDS, fields->bm) {
4830 nx_put_header(reply, field, version,
4831 masks && bitmap_is_set(masks->bm, field));
4833 end_property(reply, start_ofs);
4837 put_table_action_features(struct ofpbuf *reply,
4838 const struct ofputil_table_action_features *taf,
4839 enum ofp13_table_feature_prop_type actions_type,
4840 enum ofp13_table_feature_prop_type set_fields_type,
4841 int miss_offset, enum ofp_version version)
4845 start_ofs = start_property(reply, actions_type + miss_offset);
4846 put_bitmap_properties(reply,
4847 ntohl(ofpact_bitmap_to_openflow(taf->ofpacts,
4849 end_property(reply, start_ofs);
4851 put_fields_property(reply, &taf->set_fields, NULL,
4852 set_fields_type + miss_offset, version);
4856 put_table_instruction_features(
4857 struct ofpbuf *reply, const struct ofputil_table_instruction_features *tif,
4858 int miss_offset, enum ofp_version version)
4863 start_ofs = start_property(reply, OFPTFPT13_INSTRUCTIONS + miss_offset);
4864 put_bitmap_properties(reply,
4865 ntohl(ovsinst_bitmap_to_openflow(tif->instructions,
4867 end_property(reply, start_ofs);
4869 start_ofs = start_property(reply, OFPTFPT13_NEXT_TABLES + miss_offset);
4870 BITMAP_FOR_EACH_1 (table_id, 255, tif->next) {
4871 ofpbuf_put(reply, &table_id, 1);
4873 end_property(reply, start_ofs);
4875 put_table_action_features(reply, &tif->write,
4876 OFPTFPT13_WRITE_ACTIONS,
4877 OFPTFPT13_WRITE_SETFIELD, miss_offset, version);
4878 put_table_action_features(reply, &tif->apply,
4879 OFPTFPT13_APPLY_ACTIONS,
4880 OFPTFPT13_APPLY_SETFIELD, miss_offset, version);
4884 ofputil_append_table_features_reply(const struct ofputil_table_features *tf,
4885 struct ovs_list *replies)
4887 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
4888 enum ofp_version version = ofpmp_version(replies);
4889 size_t start_ofs = reply->size;
4890 struct ofp13_table_features *otf;
4892 otf = ofpbuf_put_zeros(reply, sizeof *otf);
4893 otf->table_id = tf->table_id;
4894 ovs_strlcpy(otf->name, tf->name, sizeof otf->name);
4895 otf->metadata_match = tf->metadata_match;
4896 otf->metadata_write = tf->metadata_write;
4897 otf->config = ofputil_table_miss_to_config(tf->miss_config, version);
4898 otf->max_entries = htonl(tf->max_entries);
4900 put_table_instruction_features(reply, &tf->nonmiss, 0, version);
4901 put_table_instruction_features(reply, &tf->miss, 1, version);
4903 put_fields_property(reply, &tf->match, &tf->mask,
4904 OFPTFPT13_MATCH, version);
4905 put_fields_property(reply, &tf->wildcard, NULL,
4906 OFPTFPT13_WILDCARDS, version);
4908 otf = ofpbuf_at_assert(reply, start_ofs, sizeof *otf);
4909 otf->length = htons(reply->size - start_ofs);
4910 ofpmp_postappend(replies, start_ofs);
4913 /* ofputil_table_mod */
4915 /* Given 'config', taken from an OpenFlow 'version' message that specifies
4916 * table configuration (a table mod, table stats, or table features message),
4917 * returns the table miss configuration that it specifies. */
4918 static enum ofputil_table_miss
4919 ofputil_table_miss_from_config(ovs_be32 config_, enum ofp_version version)
4921 uint32_t config = ntohl(config_);
4923 if (version < OFP13_VERSION) {
4924 switch (config & OFPTC11_TABLE_MISS_MASK) {
4925 case OFPTC11_TABLE_MISS_CONTROLLER:
4926 return OFPUTIL_TABLE_MISS_CONTROLLER;
4928 case OFPTC11_TABLE_MISS_CONTINUE:
4929 return OFPUTIL_TABLE_MISS_CONTINUE;
4931 case OFPTC11_TABLE_MISS_DROP:
4932 return OFPUTIL_TABLE_MISS_DROP;
4935 VLOG_WARN_RL(&bad_ofmsg_rl, "bad table miss config %d", config);
4936 return OFPUTIL_TABLE_MISS_CONTROLLER;
4939 return OFPUTIL_TABLE_MISS_DEFAULT;
4943 /* Given a table miss configuration, returns the corresponding OpenFlow table
4944 * configuration for use in an OpenFlow message of the given 'version'. */
4946 ofputil_table_miss_to_config(enum ofputil_table_miss miss,
4947 enum ofp_version version)
4949 if (version < OFP13_VERSION) {
4951 case OFPUTIL_TABLE_MISS_CONTROLLER:
4952 case OFPUTIL_TABLE_MISS_DEFAULT:
4953 return htonl(OFPTC11_TABLE_MISS_CONTROLLER);
4955 case OFPUTIL_TABLE_MISS_CONTINUE:
4956 return htonl(OFPTC11_TABLE_MISS_CONTINUE);
4958 case OFPUTIL_TABLE_MISS_DROP:
4959 return htonl(OFPTC11_TABLE_MISS_DROP);
4969 /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in
4970 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
4972 ofputil_decode_table_mod(const struct ofp_header *oh,
4973 struct ofputil_table_mod *pm)
4978 ofpbuf_use_const(&b, oh, ntohs(oh->length));
4979 raw = ofpraw_pull_assert(&b);
4981 if (raw == OFPRAW_OFPT11_TABLE_MOD) {
4982 const struct ofp11_table_mod *otm = b.data;
4984 pm->table_id = otm->table_id;
4985 pm->miss_config = ofputil_table_miss_from_config(otm->config,
4987 } else if (raw == OFPRAW_OFPT14_TABLE_MOD) {
4988 const struct ofp14_table_mod *otm = ofpbuf_pull(&b, sizeof *otm);
4990 pm->table_id = otm->table_id;
4991 pm->miss_config = ofputil_table_miss_from_config(otm->config,
4993 /* We do not understand any properties yet, so we do not bother
4996 return OFPERR_OFPBRC_BAD_TYPE;
5002 /* Converts the abstract form of a "table mod" message in '*pm' into an OpenFlow
5003 * message suitable for 'protocol', and returns that encoded form in a buffer
5004 * owned by the caller. */
5006 ofputil_encode_table_mod(const struct ofputil_table_mod *pm,
5007 enum ofputil_protocol protocol)
5009 enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
5012 switch (ofp_version) {
5013 case OFP10_VERSION: {
5014 ovs_fatal(0, "table mod needs OpenFlow 1.1 or later "
5015 "(\'-O OpenFlow11\')");
5020 case OFP13_VERSION: {
5021 struct ofp11_table_mod *otm;
5023 b = ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD, ofp_version, 0);
5024 otm = ofpbuf_put_zeros(b, sizeof *otm);
5025 otm->table_id = pm->table_id;
5026 otm->config = ofputil_table_miss_to_config(pm->miss_config,
5031 case OFP15_VERSION: {
5032 struct ofp14_table_mod *otm;
5034 b = ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD, ofp_version, 0);
5035 otm = ofpbuf_put_zeros(b, sizeof *otm);
5036 otm->table_id = pm->table_id;
5037 otm->config = ofputil_table_miss_to_config(pm->miss_config,
5048 /* ofputil_role_request */
5050 /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into
5051 * an abstract form in '*rr'. Returns 0 if successful, otherwise an
5052 * OFPERR_* value. */
5054 ofputil_decode_role_message(const struct ofp_header *oh,
5055 struct ofputil_role_request *rr)
5060 ofpbuf_use_const(&b, oh, ntohs(oh->length));
5061 raw = ofpraw_pull_assert(&b);
5063 if (raw == OFPRAW_OFPT12_ROLE_REQUEST ||
5064 raw == OFPRAW_OFPT12_ROLE_REPLY) {
5065 const struct ofp12_role_request *orr = b.msg;
5067 if (orr->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
5068 orr->role != htonl(OFPCR12_ROLE_EQUAL) &&
5069 orr->role != htonl(OFPCR12_ROLE_MASTER) &&
5070 orr->role != htonl(OFPCR12_ROLE_SLAVE)) {
5071 return OFPERR_OFPRRFC_BAD_ROLE;
5074 rr->role = ntohl(orr->role);
5075 if (raw == OFPRAW_OFPT12_ROLE_REQUEST
5076 ? orr->role == htonl(OFPCR12_ROLE_NOCHANGE)
5077 : orr->generation_id == OVS_BE64_MAX) {
5078 rr->have_generation_id = false;
5079 rr->generation_id = 0;
5081 rr->have_generation_id = true;
5082 rr->generation_id = ntohll(orr->generation_id);
5084 } else if (raw == OFPRAW_NXT_ROLE_REQUEST ||
5085 raw == OFPRAW_NXT_ROLE_REPLY) {
5086 const struct nx_role_request *nrr = b.msg;
5088 BUILD_ASSERT(NX_ROLE_OTHER + 1 == OFPCR12_ROLE_EQUAL);
5089 BUILD_ASSERT(NX_ROLE_MASTER + 1 == OFPCR12_ROLE_MASTER);
5090 BUILD_ASSERT(NX_ROLE_SLAVE + 1 == OFPCR12_ROLE_SLAVE);
5092 if (nrr->role != htonl(NX_ROLE_OTHER) &&
5093 nrr->role != htonl(NX_ROLE_MASTER) &&
5094 nrr->role != htonl(NX_ROLE_SLAVE)) {
5095 return OFPERR_OFPRRFC_BAD_ROLE;
5098 rr->role = ntohl(nrr->role) + 1;
5099 rr->have_generation_id = false;
5100 rr->generation_id = 0;
5108 /* Returns an encoded form of a role reply suitable for the "request" in a
5109 * buffer owned by the caller. */
5111 ofputil_encode_role_reply(const struct ofp_header *request,
5112 const struct ofputil_role_request *rr)
5117 raw = ofpraw_decode_assert(request);
5118 if (raw == OFPRAW_OFPT12_ROLE_REQUEST) {
5119 struct ofp12_role_request *orr;
5121 buf = ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY, request, 0);
5122 orr = ofpbuf_put_zeros(buf, sizeof *orr);
5124 orr->role = htonl(rr->role);
5125 orr->generation_id = htonll(rr->have_generation_id
5128 } else if (raw == OFPRAW_NXT_ROLE_REQUEST) {
5129 struct nx_role_request *nrr;
5131 BUILD_ASSERT(NX_ROLE_OTHER == OFPCR12_ROLE_EQUAL - 1);
5132 BUILD_ASSERT(NX_ROLE_MASTER == OFPCR12_ROLE_MASTER - 1);
5133 BUILD_ASSERT(NX_ROLE_SLAVE == OFPCR12_ROLE_SLAVE - 1);
5135 buf = ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY, request, 0);
5136 nrr = ofpbuf_put_zeros(buf, sizeof *nrr);
5137 nrr->role = htonl(rr->role - 1);
5145 /* Encodes "role status" message 'status' for sending in the given
5146 * 'protocol'. Returns the role status message, if 'protocol' supports them,
5147 * otherwise a null pointer. */
5149 ofputil_encode_role_status(const struct ofputil_role_status *status,
5150 enum ofputil_protocol protocol)
5152 enum ofp_version version;
5154 version = ofputil_protocol_to_ofp_version(protocol);
5155 if (version >= OFP14_VERSION) {
5156 struct ofp14_role_status *rstatus;
5159 buf = ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS, version, htonl(0),
5161 rstatus = ofpbuf_put_zeros(buf, sizeof *rstatus);
5162 rstatus->role = htonl(status->role);
5163 rstatus->reason = status->reason;
5164 rstatus->generation_id = htonll(status->generation_id);
5173 ofputil_decode_role_status(const struct ofp_header *oh,
5174 struct ofputil_role_status *rs)
5178 const struct ofp14_role_status *r;
5180 ofpbuf_use_const(&b, oh, ntohs(oh->length));
5181 raw = ofpraw_pull_assert(&b);
5182 ovs_assert(raw == OFPRAW_OFPT14_ROLE_STATUS);
5185 if (r->role != htonl(OFPCR12_ROLE_NOCHANGE) &&
5186 r->role != htonl(OFPCR12_ROLE_EQUAL) &&
5187 r->role != htonl(OFPCR12_ROLE_MASTER) &&
5188 r->role != htonl(OFPCR12_ROLE_SLAVE)) {
5189 return OFPERR_OFPRRFC_BAD_ROLE;
5192 rs->role = ntohl(r->role);
5193 rs->generation_id = ntohll(r->generation_id);
5194 rs->reason = r->reason;
5201 /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be
5202 * matched and a field that must be wildcarded. This function returns a bitmap
5203 * that contains both kinds of fields. */
5204 static struct mf_bitmap
5205 wild_or_nonmatchable_fields(const struct ofputil_table_features *features)
5207 struct mf_bitmap wc = features->match;
5208 bitmap_not(wc.bm, MFF_N_IDS);
5209 bitmap_or(wc.bm, features->wildcard.bm, MFF_N_IDS);
5213 struct ofp10_wc_map {
5214 enum ofp10_flow_wildcards wc10;
5215 enum mf_field_id mf;
5218 static const struct ofp10_wc_map ofp10_wc_map[] = {
5219 { OFPFW10_IN_PORT, MFF_IN_PORT },
5220 { OFPFW10_DL_VLAN, MFF_VLAN_VID },
5221 { OFPFW10_DL_SRC, MFF_ETH_SRC },
5222 { OFPFW10_DL_DST, MFF_ETH_DST},
5223 { OFPFW10_DL_TYPE, MFF_ETH_TYPE },
5224 { OFPFW10_NW_PROTO, MFF_IP_PROTO },
5225 { OFPFW10_TP_SRC, MFF_TCP_SRC },
5226 { OFPFW10_TP_DST, MFF_TCP_DST },
5227 { OFPFW10_NW_SRC_MASK, MFF_IPV4_SRC },
5228 { OFPFW10_NW_DST_MASK, MFF_IPV4_DST },
5229 { OFPFW10_DL_VLAN_PCP, MFF_VLAN_PCP },
5230 { OFPFW10_NW_TOS, MFF_IP_DSCP },
5234 mf_bitmap_to_of10(const struct mf_bitmap *fields)
5236 const struct ofp10_wc_map *p;
5239 for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) {
5240 if (bitmap_is_set(fields->bm, p->mf)) {
5247 static struct mf_bitmap
5248 mf_bitmap_from_of10(ovs_be32 wc10_)
5250 struct mf_bitmap fields = MF_BITMAP_INITIALIZER;
5251 const struct ofp10_wc_map *p;
5252 uint32_t wc10 = ntohl(wc10_);
5254 for (p = ofp10_wc_map; p < &ofp10_wc_map[ARRAY_SIZE(ofp10_wc_map)]; p++) {
5255 if (wc10 & p->wc10) {
5256 bitmap_set1(fields.bm, p->mf);
5263 ofputil_put_ofp10_table_stats(const struct ofputil_table_stats *stats,
5264 const struct ofputil_table_features *features,
5267 struct mf_bitmap wc = wild_or_nonmatchable_fields(features);
5268 struct ofp10_table_stats *out;
5270 out = ofpbuf_put_zeros(buf, sizeof *out);
5271 out->table_id = features->table_id;
5272 ovs_strlcpy(out->name, features->name, sizeof out->name);
5273 out->wildcards = mf_bitmap_to_of10(&wc);
5274 out->max_entries = htonl(features->max_entries);
5275 out->active_count = htonl(stats->active_count);
5276 put_32aligned_be64(&out->lookup_count, htonll(stats->lookup_count));
5277 put_32aligned_be64(&out->matched_count, htonll(stats->matched_count));
5280 struct ofp11_wc_map {
5281 enum ofp11_flow_match_fields wc11;
5282 enum mf_field_id mf;
5285 static const struct ofp11_wc_map ofp11_wc_map[] = {
5286 { OFPFMF11_IN_PORT, MFF_IN_PORT },
5287 { OFPFMF11_DL_VLAN, MFF_VLAN_VID },
5288 { OFPFMF11_DL_VLAN_PCP, MFF_VLAN_PCP },
5289 { OFPFMF11_DL_TYPE, MFF_ETH_TYPE },
5290 { OFPFMF11_NW_TOS, MFF_IP_DSCP },
5291 { OFPFMF11_NW_PROTO, MFF_IP_PROTO },
5292 { OFPFMF11_TP_SRC, MFF_TCP_SRC },
5293 { OFPFMF11_TP_DST, MFF_TCP_DST },
5294 { OFPFMF11_MPLS_LABEL, MFF_MPLS_LABEL },
5295 { OFPFMF11_MPLS_TC, MFF_MPLS_TC },
5296 /* I don't know what OFPFMF11_TYPE means. */
5297 { OFPFMF11_DL_SRC, MFF_ETH_SRC },
5298 { OFPFMF11_DL_DST, MFF_ETH_DST },
5299 { OFPFMF11_NW_SRC, MFF_IPV4_SRC },
5300 { OFPFMF11_NW_DST, MFF_IPV4_DST },
5301 { OFPFMF11_METADATA, MFF_METADATA },
5305 mf_bitmap_to_of11(const struct mf_bitmap *fields)
5307 const struct ofp11_wc_map *p;
5310 for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) {
5311 if (bitmap_is_set(fields->bm, p->mf)) {
5318 static struct mf_bitmap
5319 mf_bitmap_from_of11(ovs_be32 wc11_)
5321 struct mf_bitmap fields = MF_BITMAP_INITIALIZER;
5322 const struct ofp11_wc_map *p;
5323 uint32_t wc11 = ntohl(wc11_);
5325 for (p = ofp11_wc_map; p < &ofp11_wc_map[ARRAY_SIZE(ofp11_wc_map)]; p++) {
5326 if (wc11 & p->wc11) {
5327 bitmap_set1(fields.bm, p->mf);
5334 ofputil_put_ofp11_table_stats(const struct ofputil_table_stats *stats,
5335 const struct ofputil_table_features *features,
5338 struct mf_bitmap wc = wild_or_nonmatchable_fields(features);
5339 struct ofp11_table_stats *out;
5341 out = ofpbuf_put_zeros(buf, sizeof *out);
5342 out->table_id = features->table_id;
5343 ovs_strlcpy(out->name, features->name, sizeof out->name);
5344 out->wildcards = mf_bitmap_to_of11(&wc);
5345 out->match = mf_bitmap_to_of11(&features->match);
5346 out->instructions = ovsinst_bitmap_to_openflow(
5347 features->nonmiss.instructions, OFP11_VERSION);
5348 out->write_actions = ofpact_bitmap_to_openflow(
5349 features->nonmiss.write.ofpacts, OFP11_VERSION);
5350 out->apply_actions = ofpact_bitmap_to_openflow(
5351 features->nonmiss.apply.ofpacts, OFP11_VERSION);
5352 out->config = htonl(features->miss_config);
5353 out->max_entries = htonl(features->max_entries);
5354 out->active_count = htonl(stats->active_count);
5355 out->lookup_count = htonll(stats->lookup_count);
5356 out->matched_count = htonll(stats->matched_count);
5360 ofputil_put_ofp12_table_stats(const struct ofputil_table_stats *stats,
5361 const struct ofputil_table_features *features,
5364 struct ofp12_table_stats *out;
5366 out = ofpbuf_put_zeros(buf, sizeof *out);
5367 out->table_id = features->table_id;
5368 ovs_strlcpy(out->name, features->name, sizeof out->name);
5369 out->match = oxm_bitmap_from_mf_bitmap(&features->match, OFP12_VERSION);
5370 out->wildcards = oxm_bitmap_from_mf_bitmap(&features->wildcard,
5372 out->write_actions = ofpact_bitmap_to_openflow(
5373 features->nonmiss.write.ofpacts, OFP12_VERSION);
5374 out->apply_actions = ofpact_bitmap_to_openflow(
5375 features->nonmiss.apply.ofpacts, OFP12_VERSION);
5376 out->write_setfields = oxm_bitmap_from_mf_bitmap(
5377 &features->nonmiss.write.set_fields, OFP12_VERSION);
5378 out->apply_setfields = oxm_bitmap_from_mf_bitmap(
5379 &features->nonmiss.apply.set_fields, OFP12_VERSION);
5380 out->metadata_match = features->metadata_match;
5381 out->metadata_write = features->metadata_write;
5382 out->instructions = ovsinst_bitmap_to_openflow(
5383 features->nonmiss.instructions, OFP12_VERSION);
5384 out->config = ofputil_table_miss_to_config(features->miss_config,
5386 out->max_entries = htonl(features->max_entries);
5387 out->active_count = htonl(stats->active_count);
5388 out->lookup_count = htonll(stats->lookup_count);
5389 out->matched_count = htonll(stats->matched_count);
5393 ofputil_put_ofp13_table_stats(const struct ofputil_table_stats *stats,
5396 struct ofp13_table_stats *out;
5398 out = ofpbuf_put_zeros(buf, sizeof *out);
5399 out->table_id = stats->table_id;
5400 out->active_count = htonl(stats->active_count);
5401 out->lookup_count = htonll(stats->lookup_count);
5402 out->matched_count = htonll(stats->matched_count);
5406 ofputil_encode_table_stats_reply(const struct ofp_header *request)
5408 return ofpraw_alloc_stats_reply(request, 0);
5412 ofputil_append_table_stats_reply(struct ofpbuf *reply,
5413 const struct ofputil_table_stats *stats,
5414 const struct ofputil_table_features *features)
5416 struct ofp_header *oh = reply->header;
5418 ovs_assert(stats->table_id == features->table_id);
5420 switch ((enum ofp_version) oh->version) {
5422 ofputil_put_ofp10_table_stats(stats, features, reply);
5426 ofputil_put_ofp11_table_stats(stats, features, reply);
5430 ofputil_put_ofp12_table_stats(stats, features, reply);
5436 ofputil_put_ofp13_table_stats(stats, reply);
5445 ofputil_decode_ofp10_table_stats(struct ofpbuf *msg,
5446 struct ofputil_table_stats *stats,
5447 struct ofputil_table_features *features)
5449 struct ofp10_table_stats *ots;
5451 ots = ofpbuf_try_pull(msg, sizeof *ots);
5453 return OFPERR_OFPBRC_BAD_LEN;
5456 features->table_id = ots->table_id;
5457 ovs_strlcpy(features->name, ots->name, sizeof features->name);
5458 features->max_entries = ntohl(ots->max_entries);
5459 features->match = features->wildcard = mf_bitmap_from_of10(ots->wildcards);
5461 stats->table_id = ots->table_id;
5462 stats->active_count = ntohl(ots->active_count);
5463 stats->lookup_count = ntohll(get_32aligned_be64(&ots->lookup_count));
5464 stats->matched_count = ntohll(get_32aligned_be64(&ots->matched_count));
5470 ofputil_decode_ofp11_table_stats(struct ofpbuf *msg,
5471 struct ofputil_table_stats *stats,
5472 struct ofputil_table_features *features)
5474 struct ofp11_table_stats *ots;
5476 ots = ofpbuf_try_pull(msg, sizeof *ots);
5478 return OFPERR_OFPBRC_BAD_LEN;
5481 features->table_id = ots->table_id;
5482 ovs_strlcpy(features->name, ots->name, sizeof features->name);
5483 features->max_entries = ntohl(ots->max_entries);
5484 features->nonmiss.instructions = ovsinst_bitmap_from_openflow(
5485 ots->instructions, OFP11_VERSION);
5486 features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow(
5487 ots->write_actions, OFP11_VERSION);
5488 features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow(
5489 ots->write_actions, OFP11_VERSION);
5490 features->miss = features->nonmiss;
5491 features->miss_config = ofputil_table_miss_from_config(ots->config,
5493 features->match = mf_bitmap_from_of11(ots->match);
5494 features->wildcard = mf_bitmap_from_of11(ots->wildcards);
5495 bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS);
5497 stats->table_id = ots->table_id;
5498 stats->active_count = ntohl(ots->active_count);
5499 stats->lookup_count = ntohll(ots->lookup_count);
5500 stats->matched_count = ntohll(ots->matched_count);
5506 ofputil_decode_ofp12_table_stats(struct ofpbuf *msg,
5507 struct ofputil_table_stats *stats,
5508 struct ofputil_table_features *features)
5510 struct ofp12_table_stats *ots;
5512 ots = ofpbuf_try_pull(msg, sizeof *ots);
5514 return OFPERR_OFPBRC_BAD_LEN;
5517 features->table_id = ots->table_id;
5518 ovs_strlcpy(features->name, ots->name, sizeof features->name);
5519 features->metadata_match = ots->metadata_match;
5520 features->metadata_write = ots->metadata_write;
5521 features->miss_config = ofputil_table_miss_from_config(ots->config,
5523 features->max_entries = ntohl(ots->max_entries);
5525 features->nonmiss.instructions = ovsinst_bitmap_from_openflow(
5526 ots->instructions, OFP12_VERSION);
5527 features->nonmiss.write.ofpacts = ofpact_bitmap_from_openflow(
5528 ots->write_actions, OFP12_VERSION);
5529 features->nonmiss.apply.ofpacts = ofpact_bitmap_from_openflow(
5530 ots->apply_actions, OFP12_VERSION);
5531 features->nonmiss.write.set_fields = oxm_bitmap_to_mf_bitmap(
5532 ots->write_setfields, OFP12_VERSION);
5533 features->nonmiss.apply.set_fields = oxm_bitmap_to_mf_bitmap(
5534 ots->apply_setfields, OFP12_VERSION);
5535 features->miss = features->nonmiss;
5537 features->match = oxm_bitmap_to_mf_bitmap(ots->match, OFP12_VERSION);
5538 features->wildcard = oxm_bitmap_to_mf_bitmap(ots->wildcards,
5540 bitmap_or(features->match.bm, features->wildcard.bm, MFF_N_IDS);
5542 stats->table_id = ots->table_id;
5543 stats->active_count = ntohl(ots->active_count);
5544 stats->lookup_count = ntohll(ots->lookup_count);
5545 stats->matched_count = ntohll(ots->matched_count);
5551 ofputil_decode_ofp13_table_stats(struct ofpbuf *msg,
5552 struct ofputil_table_stats *stats,
5553 struct ofputil_table_features *features)
5555 struct ofp13_table_stats *ots;
5557 ots = ofpbuf_try_pull(msg, sizeof *ots);
5559 return OFPERR_OFPBRC_BAD_LEN;
5562 features->table_id = ots->table_id;
5564 stats->table_id = ots->table_id;
5565 stats->active_count = ntohl(ots->active_count);
5566 stats->lookup_count = ntohll(ots->lookup_count);
5567 stats->matched_count = ntohll(ots->matched_count);
5573 ofputil_decode_table_stats_reply(struct ofpbuf *msg,
5574 struct ofputil_table_stats *stats,
5575 struct ofputil_table_features *features)
5577 const struct ofp_header *oh;
5580 ofpraw_pull_assert(msg);
5588 memset(stats, 0, sizeof *stats);
5589 memset(features, 0, sizeof *features);
5591 switch ((enum ofp_version) oh->version) {
5593 return ofputil_decode_ofp10_table_stats(msg, stats, features);
5596 return ofputil_decode_ofp11_table_stats(msg, stats, features);
5599 return ofputil_decode_ofp12_table_stats(msg, stats, features);
5604 return ofputil_decode_ofp13_table_stats(msg, stats, features);
5611 /* ofputil_flow_monitor_request */
5613 /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
5614 * ofputil_flow_monitor_request in 'rq'.
5616 * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
5617 * message. Calling this function multiple times for a single 'msg' iterates
5618 * through the requests. The caller must initially leave 'msg''s layer
5619 * pointers null and not modify them between calls.
5621 * Returns 0 if successful, EOF if no requests were left in this 'msg',
5622 * otherwise an OFPERR_* value. */
5624 ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request *rq,
5627 struct nx_flow_monitor_request *nfmr;
5631 ofpraw_pull_assert(msg);
5638 nfmr = ofpbuf_try_pull(msg, sizeof *nfmr);
5640 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR request has %"PRIu32" "
5641 "leftover bytes at end", msg->size);
5642 return OFPERR_OFPBRC_BAD_LEN;
5645 flags = ntohs(nfmr->flags);
5646 if (!(flags & (NXFMF_ADD | NXFMF_DELETE | NXFMF_MODIFY))
5647 || flags & ~(NXFMF_INITIAL | NXFMF_ADD | NXFMF_DELETE
5648 | NXFMF_MODIFY | NXFMF_ACTIONS | NXFMF_OWN)) {
5649 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR has bad flags %#"PRIx16,
5651 return OFPERR_OFPMOFC_BAD_FLAGS;
5654 if (!is_all_zeros(nfmr->zeros, sizeof nfmr->zeros)) {
5655 return OFPERR_NXBRC_MUST_BE_ZERO;
5658 rq->id = ntohl(nfmr->id);
5660 rq->out_port = u16_to_ofp(ntohs(nfmr->out_port));
5661 rq->table_id = nfmr->table_id;
5663 return nx_pull_match(msg, ntohs(nfmr->match_len), &rq->match, NULL, NULL);
5667 ofputil_append_flow_monitor_request(
5668 const struct ofputil_flow_monitor_request *rq, struct ofpbuf *msg)
5670 struct nx_flow_monitor_request *nfmr;
5675 ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST, OFP10_VERSION, msg);
5678 start_ofs = msg->size;
5679 ofpbuf_put_zeros(msg, sizeof *nfmr);
5680 match_len = nx_put_match(msg, &rq->match, htonll(0), htonll(0));
5682 nfmr = ofpbuf_at_assert(msg, start_ofs, sizeof *nfmr);
5683 nfmr->id = htonl(rq->id);
5684 nfmr->flags = htons(rq->flags);
5685 nfmr->out_port = htons(ofp_to_u16(rq->out_port));
5686 nfmr->match_len = htons(match_len);
5687 nfmr->table_id = rq->table_id;
5690 /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
5691 * into an abstract ofputil_flow_update in 'update'. The caller must have
5692 * initialized update->match to point to space allocated for a match.
5694 * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
5695 * actions (except for NXFME_ABBREV, which never includes actions). The caller
5696 * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
5697 * will point into the 'ofpacts' buffer.
5699 * Multiple flow updates can be packed into a single OpenFlow message. Calling
5700 * this function multiple times for a single 'msg' iterates through the
5701 * updates. The caller must initially leave 'msg''s layer pointers null and
5702 * not modify them between calls.
5704 * Returns 0 if successful, EOF if no updates were left in this 'msg',
5705 * otherwise an OFPERR_* value. */
5707 ofputil_decode_flow_update(struct ofputil_flow_update *update,
5708 struct ofpbuf *msg, struct ofpbuf *ofpacts)
5710 struct nx_flow_update_header *nfuh;
5711 unsigned int length;
5712 struct ofp_header *oh;
5715 ofpraw_pull_assert(msg);
5722 if (msg->size < sizeof(struct nx_flow_update_header)) {
5729 update->event = ntohs(nfuh->event);
5730 length = ntohs(nfuh->length);
5731 if (length > msg->size || length % 8) {
5735 if (update->event == NXFME_ABBREV) {
5736 struct nx_flow_update_abbrev *nfua;
5738 if (length != sizeof *nfua) {
5742 nfua = ofpbuf_pull(msg, sizeof *nfua);
5743 update->xid = nfua->xid;
5745 } else if (update->event == NXFME_ADDED
5746 || update->event == NXFME_DELETED
5747 || update->event == NXFME_MODIFIED) {
5748 struct nx_flow_update_full *nfuf;
5749 unsigned int actions_len;
5750 unsigned int match_len;
5753 if (length < sizeof *nfuf) {
5757 nfuf = ofpbuf_pull(msg, sizeof *nfuf);
5758 match_len = ntohs(nfuf->match_len);
5759 if (sizeof *nfuf + match_len > length) {
5763 update->reason = ntohs(nfuf->reason);
5764 update->idle_timeout = ntohs(nfuf->idle_timeout);
5765 update->hard_timeout = ntohs(nfuf->hard_timeout);
5766 update->table_id = nfuf->table_id;
5767 update->cookie = nfuf->cookie;
5768 update->priority = ntohs(nfuf->priority);
5770 error = nx_pull_match(msg, match_len, update->match, NULL, NULL);
5775 actions_len = length - sizeof *nfuf - ROUND_UP(match_len, 8);
5776 error = ofpacts_pull_openflow_actions(msg, actions_len, oh->version,
5782 update->ofpacts = ofpacts->data;
5783 update->ofpacts_len = ofpacts->size;
5786 VLOG_WARN_RL(&bad_ofmsg_rl,
5787 "NXST_FLOW_MONITOR reply has bad event %"PRIu16,
5788 ntohs(nfuh->event));
5789 return OFPERR_NXBRC_FM_BAD_EVENT;
5793 VLOG_WARN_RL(&bad_ofmsg_rl, "NXST_FLOW_MONITOR reply has %"PRIu32" "
5794 "leftover bytes at end", msg->size);
5795 return OFPERR_OFPBRC_BAD_LEN;
5799 ofputil_decode_flow_monitor_cancel(const struct ofp_header *oh)
5801 const struct nx_flow_monitor_cancel *cancel = ofpmsg_body(oh);
5803 return ntohl(cancel->id);
5807 ofputil_encode_flow_monitor_cancel(uint32_t id)
5809 struct nx_flow_monitor_cancel *nfmc;
5812 msg = ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL, OFP10_VERSION, 0);
5813 nfmc = ofpbuf_put_uninit(msg, sizeof *nfmc);
5814 nfmc->id = htonl(id);
5819 ofputil_start_flow_update(struct ovs_list *replies)
5823 msg = ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY, OFP10_VERSION,
5827 list_push_back(replies, &msg->list_node);
5831 ofputil_append_flow_update(const struct ofputil_flow_update *update,
5832 struct ovs_list *replies)
5834 enum ofp_version version = ofpmp_version(replies);
5835 struct nx_flow_update_header *nfuh;
5839 msg = ofpbuf_from_list(list_back(replies));
5840 start_ofs = msg->size;
5842 if (update->event == NXFME_ABBREV) {
5843 struct nx_flow_update_abbrev *nfua;
5845 nfua = ofpbuf_put_zeros(msg, sizeof *nfua);
5846 nfua->xid = update->xid;
5848 struct nx_flow_update_full *nfuf;
5851 ofpbuf_put_zeros(msg, sizeof *nfuf);
5852 match_len = nx_put_match(msg, update->match, htonll(0), htonll(0));
5853 ofpacts_put_openflow_actions(update->ofpacts, update->ofpacts_len, msg,
5855 nfuf = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuf);
5856 nfuf->reason = htons(update->reason);
5857 nfuf->priority = htons(update->priority);
5858 nfuf->idle_timeout = htons(update->idle_timeout);
5859 nfuf->hard_timeout = htons(update->hard_timeout);
5860 nfuf->match_len = htons(match_len);
5861 nfuf->table_id = update->table_id;
5862 nfuf->cookie = update->cookie;
5865 nfuh = ofpbuf_at_assert(msg, start_ofs, sizeof *nfuh);
5866 nfuh->length = htons(msg->size - start_ofs);
5867 nfuh->event = htons(update->event);
5869 ofpmp_postappend(replies, start_ofs);
5873 ofputil_encode_packet_out(const struct ofputil_packet_out *po,
5874 enum ofputil_protocol protocol)
5876 enum ofp_version ofp_version = ofputil_protocol_to_ofp_version(protocol);
5880 size = po->ofpacts_len;
5881 if (po->buffer_id == UINT32_MAX) {
5882 size += po->packet_len;
5885 switch (ofp_version) {
5886 case OFP10_VERSION: {
5887 struct ofp10_packet_out *opo;
5890 msg = ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT, OFP10_VERSION, size);
5891 ofpbuf_put_zeros(msg, sizeof *opo);
5892 actions_ofs = msg->size;
5893 ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
5897 opo->buffer_id = htonl(po->buffer_id);
5898 opo->in_port = htons(ofp_to_u16(po->in_port));
5899 opo->actions_len = htons(msg->size - actions_ofs);
5907 case OFP15_VERSION: {
5908 struct ofp11_packet_out *opo;
5911 msg = ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT, ofp_version, size);
5912 ofpbuf_put_zeros(msg, sizeof *opo);
5913 len = ofpacts_put_openflow_actions(po->ofpacts, po->ofpacts_len, msg,
5916 opo->buffer_id = htonl(po->buffer_id);
5917 opo->in_port = ofputil_port_to_ofp11(po->in_port);
5918 opo->actions_len = htons(len);
5926 if (po->buffer_id == UINT32_MAX) {
5927 ofpbuf_put(msg, po->packet, po->packet_len);
5930 ofpmsg_update_length(msg);
5935 /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
5937 make_echo_request(enum ofp_version ofp_version)
5939 return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST, ofp_version,
5943 /* Creates and returns an OFPT_ECHO_REPLY message matching the
5944 * OFPT_ECHO_REQUEST message in 'rq'. */
5946 make_echo_reply(const struct ofp_header *rq)
5948 struct ofpbuf rq_buf;
5949 struct ofpbuf *reply;
5951 ofpbuf_use_const(&rq_buf, rq, ntohs(rq->length));
5952 ofpraw_pull_assert(&rq_buf);
5954 reply = ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY, rq, rq_buf.size);
5955 ofpbuf_put(reply, rq_buf.data, rq_buf.size);
5960 ofputil_encode_barrier_request(enum ofp_version ofp_version)
5964 switch (ofp_version) {
5970 type = OFPRAW_OFPT11_BARRIER_REQUEST;
5974 type = OFPRAW_OFPT10_BARRIER_REQUEST;
5981 return ofpraw_alloc(type, ofp_version, 0);
5985 ofputil_frag_handling_to_string(enum ofp_config_flags flags)
5987 switch (flags & OFPC_FRAG_MASK) {
5988 case OFPC_FRAG_NORMAL: return "normal";
5989 case OFPC_FRAG_DROP: return "drop";
5990 case OFPC_FRAG_REASM: return "reassemble";
5991 case OFPC_FRAG_NX_MATCH: return "nx-match";
5998 ofputil_frag_handling_from_string(const char *s, enum ofp_config_flags *flags)
6000 if (!strcasecmp(s, "normal")) {
6001 *flags = OFPC_FRAG_NORMAL;
6002 } else if (!strcasecmp(s, "drop")) {
6003 *flags = OFPC_FRAG_DROP;
6004 } else if (!strcasecmp(s, "reassemble")) {
6005 *flags = OFPC_FRAG_REASM;
6006 } else if (!strcasecmp(s, "nx-match")) {
6007 *flags = OFPC_FRAG_NX_MATCH;
6014 /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
6015 * port number and stores the latter in '*ofp10_port', for the purpose of
6016 * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
6017 * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'.
6019 * See the definition of OFP11_MAX for an explanation of the mapping. */
6021 ofputil_port_from_ofp11(ovs_be32 ofp11_port, ofp_port_t *ofp10_port)
6023 uint32_t ofp11_port_h = ntohl(ofp11_port);
6025 if (ofp11_port_h < ofp_to_u16(OFPP_MAX)) {
6026 *ofp10_port = u16_to_ofp(ofp11_port_h);
6028 } else if (ofp11_port_h >= ofp11_to_u32(OFPP11_MAX)) {
6029 *ofp10_port = u16_to_ofp(ofp11_port_h - OFPP11_OFFSET);
6032 *ofp10_port = OFPP_NONE;
6033 VLOG_WARN_RL(&bad_ofmsg_rl, "port %"PRIu32" is outside the supported "
6034 "range 0 through %d or 0x%"PRIx32" through 0x%"PRIx32,
6035 ofp11_port_h, ofp_to_u16(OFPP_MAX) - 1,
6036 ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
6037 return OFPERR_OFPBAC_BAD_OUT_PORT;
6041 /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
6042 * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
6044 * See the definition of OFP11_MAX for an explanation of the mapping. */
6046 ofputil_port_to_ofp11(ofp_port_t ofp10_port)
6048 return htonl(ofp_to_u16(ofp10_port) < ofp_to_u16(OFPP_MAX)
6049 ? ofp_to_u16(ofp10_port)
6050 : ofp_to_u16(ofp10_port) + OFPP11_OFFSET);
6053 #define OFPUTIL_NAMED_PORTS \
6054 OFPUTIL_NAMED_PORT(IN_PORT) \
6055 OFPUTIL_NAMED_PORT(TABLE) \
6056 OFPUTIL_NAMED_PORT(NORMAL) \
6057 OFPUTIL_NAMED_PORT(FLOOD) \
6058 OFPUTIL_NAMED_PORT(ALL) \
6059 OFPUTIL_NAMED_PORT(CONTROLLER) \
6060 OFPUTIL_NAMED_PORT(LOCAL) \
6061 OFPUTIL_NAMED_PORT(ANY) \
6062 OFPUTIL_NAMED_PORT(UNSET)
6064 /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
6065 #define OFPUTIL_NAMED_PORTS_WITH_NONE \
6066 OFPUTIL_NAMED_PORTS \
6067 OFPUTIL_NAMED_PORT(NONE)
6069 /* Stores the port number represented by 's' into '*portp'. 's' may be an
6070 * integer or, for reserved ports, the standard OpenFlow name for the port
6073 * Returns true if successful, false if 's' is not a valid OpenFlow port number
6074 * or name. The caller should issue an error message in this case, because
6075 * this function usually does not. (This gives the caller an opportunity to
6076 * look up the port name another way, e.g. by contacting the switch and listing
6077 * the names of all its ports).
6079 * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
6080 * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
6081 * range as described in include/openflow/openflow-1.1.h. */
6083 ofputil_port_from_string(const char *s, ofp_port_t *portp)
6085 unsigned int port32; /* int is at least 32 bits wide. */
6088 VLOG_WARN("Negative value %s is not a valid port number.", s);
6092 if (str_to_uint(s, 10, &port32)) {
6093 if (port32 < ofp_to_u16(OFPP_MAX)) {
6095 } else if (port32 < ofp_to_u16(OFPP_FIRST_RESV)) {
6096 VLOG_WARN("port %u is a reserved OF1.0 port number that will "
6097 "be translated to %u when talking to an OF1.1 or "
6098 "later controller", port32, port32 + OFPP11_OFFSET);
6099 } else if (port32 <= ofp_to_u16(OFPP_LAST_RESV)) {
6100 char name[OFP_MAX_PORT_NAME_LEN];
6102 ofputil_port_to_string(u16_to_ofp(port32), name, sizeof name);
6103 VLOG_WARN_ONCE("referring to port %s as %"PRIu32" is deprecated "
6104 "for compatibility with OpenFlow 1.1 and later",
6106 } else if (port32 < ofp11_to_u32(OFPP11_MAX)) {
6107 VLOG_WARN("port %u is outside the supported range 0 through "
6108 "%"PRIx16" or 0x%x through 0x%"PRIx32, port32,
6109 UINT16_MAX, ofp11_to_u32(OFPP11_MAX), UINT32_MAX);
6112 port32 -= OFPP11_OFFSET;
6115 *portp = u16_to_ofp(port32);
6122 static const struct pair pairs[] = {
6123 #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
6124 OFPUTIL_NAMED_PORTS_WITH_NONE
6125 #undef OFPUTIL_NAMED_PORT
6127 const struct pair *p;
6129 for (p = pairs; p < &pairs[ARRAY_SIZE(pairs)]; p++) {
6130 if (!strcasecmp(s, p->name)) {
6139 /* Appends to 's' a string representation of the OpenFlow port number 'port'.
6140 * Most ports' string representation is just the port number, but for special
6141 * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
6143 ofputil_format_port(ofp_port_t port, struct ds *s)
6145 char name[OFP_MAX_PORT_NAME_LEN];
6147 ofputil_port_to_string(port, name, sizeof name);
6148 ds_put_cstr(s, name);
6151 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
6152 * representation of OpenFlow port number 'port'. Most ports are represented
6153 * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented
6154 * by name, e.g. "LOCAL". */
6156 ofputil_port_to_string(ofp_port_t port,
6157 char namebuf[OFP_MAX_PORT_NAME_LEN], size_t bufsize)
6160 #define OFPUTIL_NAMED_PORT(NAME) \
6162 ovs_strlcpy(namebuf, #NAME, bufsize); \
6165 #undef OFPUTIL_NAMED_PORT
6168 snprintf(namebuf, bufsize, "%"PRIu16, port);
6173 /* Stores the group id represented by 's' into '*group_idp'. 's' may be an
6174 * integer or, for reserved group IDs, the standard OpenFlow name for the group
6175 * (either "ANY" or "ALL").
6177 * Returns true if successful, false if 's' is not a valid OpenFlow group ID or
6180 ofputil_group_from_string(const char *s, uint32_t *group_idp)
6182 if (!strcasecmp(s, "any")) {
6183 *group_idp = OFPG11_ANY;
6184 } else if (!strcasecmp(s, "all")) {
6185 *group_idp = OFPG11_ALL;
6186 } else if (!str_to_uint(s, 10, group_idp)) {
6187 VLOG_WARN("%s is not a valid group ID. (Valid group IDs are "
6188 "32-bit nonnegative integers or the keywords ANY or "
6196 /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'.
6197 * Most groups' string representation is just the number, but for special
6198 * groups, e.g. OFPG11_ALL, it is the name, e.g. "ALL". */
6200 ofputil_format_group(uint32_t group_id, struct ds *s)
6202 char name[MAX_GROUP_NAME_LEN];
6204 ofputil_group_to_string(group_id, name, sizeof name);
6205 ds_put_cstr(s, name);
6209 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
6210 * representation of OpenFlow group ID 'group_id'. Most group are represented
6211 * as just their number, but special groups, e.g. OFPG11_ALL, are represented
6212 * by name, e.g. "ALL". */
6214 ofputil_group_to_string(uint32_t group_id,
6215 char namebuf[MAX_GROUP_NAME_LEN + 1], size_t bufsize)
6219 ovs_strlcpy(namebuf, "ALL", bufsize);
6223 ovs_strlcpy(namebuf, "ANY", bufsize);
6227 snprintf(namebuf, bufsize, "%"PRIu32, group_id);
6232 /* Given a buffer 'b' that contains an array of OpenFlow ports of type
6233 * 'ofp_version', tries to pull the first element from the array. If
6234 * successful, initializes '*pp' with an abstract representation of the
6235 * port and returns 0. If no ports remain to be decoded, returns EOF.
6236 * On an error, returns a positive OFPERR_* value. */
6238 ofputil_pull_phy_port(enum ofp_version ofp_version, struct ofpbuf *b,
6239 struct ofputil_phy_port *pp)
6241 memset(pp, 0, sizeof *pp);
6243 switch (ofp_version) {
6244 case OFP10_VERSION: {
6245 const struct ofp10_phy_port *opp = ofpbuf_try_pull(b, sizeof *opp);
6246 return opp ? ofputil_decode_ofp10_phy_port(pp, opp) : EOF;
6250 case OFP13_VERSION: {
6251 const struct ofp11_port *op = ofpbuf_try_pull(b, sizeof *op);
6252 return op ? ofputil_decode_ofp11_port(pp, op) : EOF;
6256 return b->size ? ofputil_pull_ofp14_port(pp, b) : EOF;
6263 ofputil_normalize_match__(struct match *match, bool may_log)
6266 MAY_NW_ADDR = 1 << 0, /* nw_src, nw_dst */
6267 MAY_TP_ADDR = 1 << 1, /* tp_src, tp_dst */
6268 MAY_NW_PROTO = 1 << 2, /* nw_proto */
6269 MAY_IPVx = 1 << 3, /* tos, frag, ttl */
6270 MAY_ARP_SHA = 1 << 4, /* arp_sha */
6271 MAY_ARP_THA = 1 << 5, /* arp_tha */
6272 MAY_IPV6 = 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */
6273 MAY_ND_TARGET = 1 << 7, /* nd_target */
6274 MAY_MPLS = 1 << 8, /* mpls label and tc */
6277 struct flow_wildcards wc;
6279 /* Figure out what fields may be matched. */
6280 if (match->flow.dl_type == htons(ETH_TYPE_IP)) {
6281 may_match = MAY_NW_PROTO | MAY_IPVx | MAY_NW_ADDR;
6282 if (match->flow.nw_proto == IPPROTO_TCP ||
6283 match->flow.nw_proto == IPPROTO_UDP ||
6284 match->flow.nw_proto == IPPROTO_SCTP ||
6285 match->flow.nw_proto == IPPROTO_ICMP) {
6286 may_match |= MAY_TP_ADDR;
6288 } else if (match->flow.dl_type == htons(ETH_TYPE_IPV6)) {
6289 may_match = MAY_NW_PROTO | MAY_IPVx | MAY_IPV6;
6290 if (match->flow.nw_proto == IPPROTO_TCP ||
6291 match->flow.nw_proto == IPPROTO_UDP ||
6292 match->flow.nw_proto == IPPROTO_SCTP) {
6293 may_match |= MAY_TP_ADDR;
6294 } else if (match->flow.nw_proto == IPPROTO_ICMPV6) {
6295 may_match |= MAY_TP_ADDR;
6296 if (match->flow.tp_src == htons(ND_NEIGHBOR_SOLICIT)) {
6297 may_match |= MAY_ND_TARGET | MAY_ARP_SHA;
6298 } else if (match->flow.tp_src == htons(ND_NEIGHBOR_ADVERT)) {
6299 may_match |= MAY_ND_TARGET | MAY_ARP_THA;
6302 } else if (match->flow.dl_type == htons(ETH_TYPE_ARP) ||
6303 match->flow.dl_type == htons(ETH_TYPE_RARP)) {
6304 may_match = MAY_NW_PROTO | MAY_NW_ADDR | MAY_ARP_SHA | MAY_ARP_THA;
6305 } else if (eth_type_mpls(match->flow.dl_type)) {
6306 may_match = MAY_MPLS;
6311 /* Clear the fields that may not be matched. */
6313 if (!(may_match & MAY_NW_ADDR)) {
6314 wc.masks.nw_src = wc.masks.nw_dst = htonl(0);
6316 if (!(may_match & MAY_TP_ADDR)) {
6317 wc.masks.tp_src = wc.masks.tp_dst = htons(0);
6319 if (!(may_match & MAY_NW_PROTO)) {
6320 wc.masks.nw_proto = 0;
6322 if (!(may_match & MAY_IPVx)) {
6323 wc.masks.nw_tos = 0;
6324 wc.masks.nw_ttl = 0;
6326 if (!(may_match & MAY_ARP_SHA)) {
6327 memset(wc.masks.arp_sha, 0, ETH_ADDR_LEN);
6329 if (!(may_match & MAY_ARP_THA)) {
6330 memset(wc.masks.arp_tha, 0, ETH_ADDR_LEN);
6332 if (!(may_match & MAY_IPV6)) {
6333 wc.masks.ipv6_src = wc.masks.ipv6_dst = in6addr_any;
6334 wc.masks.ipv6_label = htonl(0);
6336 if (!(may_match & MAY_ND_TARGET)) {
6337 wc.masks.nd_target = in6addr_any;
6339 if (!(may_match & MAY_MPLS)) {
6340 memset(wc.masks.mpls_lse, 0, sizeof wc.masks.mpls_lse);
6343 /* Log any changes. */
6344 if (!flow_wildcards_equal(&wc, &match->wc)) {
6345 bool log = may_log && !VLOG_DROP_INFO(&bad_ofmsg_rl);
6346 char *pre = log ? match_to_string(match, OFP_DEFAULT_PRIORITY) : NULL;
6349 match_zero_wildcarded_fields(match);
6352 char *post = match_to_string(match, OFP_DEFAULT_PRIORITY);
6353 VLOG_INFO("normalization changed ofp_match, details:");
6354 VLOG_INFO(" pre: %s", pre);
6355 VLOG_INFO("post: %s", post);
6362 /* "Normalizes" the wildcards in 'match'. That means:
6364 * 1. If the type of level N is known, then only the valid fields for that
6365 * level may be specified. For example, ARP does not have a TOS field,
6366 * so nw_tos must be wildcarded if 'match' specifies an ARP flow.
6367 * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
6368 * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an
6371 * 2. If the type of level N is not known (or not understood by Open
6372 * vSwitch), then no fields at all for that level may be specified. For
6373 * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
6374 * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an
6377 * If this function changes 'match', it logs a rate-limited informational
6380 ofputil_normalize_match(struct match *match)
6382 ofputil_normalize_match__(match, true);
6385 /* Same as ofputil_normalize_match() without the logging. Thus, this function
6386 * is suitable for a program's internal use, whereas ofputil_normalize_match()
6387 * sense for use on flows received from elsewhere (so that a bug in the program
6388 * that sent them can be reported and corrected). */
6390 ofputil_normalize_match_quiet(struct match *match)
6392 ofputil_normalize_match__(match, false);
6395 /* Parses a key or a key-value pair from '*stringp'.
6397 * On success: Stores the key into '*keyp'. Stores the value, if present, into
6398 * '*valuep', otherwise an empty string. Advances '*stringp' past the end of
6399 * the key-value pair, preparing it for another call. '*keyp' and '*valuep'
6400 * are substrings of '*stringp' created by replacing some of its bytes by null
6401 * terminators. Returns true.
6403 * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to
6404 * NULL and returns false. */
6406 ofputil_parse_key_value(char **stringp, char **keyp, char **valuep)
6408 char *pos, *key, *value;
6412 pos += strspn(pos, ", \t\r\n");
6414 *keyp = *valuep = NULL;
6419 key_len = strcspn(pos, ":=(, \t\r\n");
6420 if (key[key_len] == ':' || key[key_len] == '=') {
6421 /* The value can be separated by a colon. */
6424 value = key + key_len + 1;
6425 value_len = strcspn(value, ", \t\r\n");
6426 pos = value + value_len + (value[value_len] != '\0');
6427 value[value_len] = '\0';
6428 } else if (key[key_len] == '(') {
6429 /* The value can be surrounded by balanced parentheses. The outermost
6430 * set of parentheses is removed. */
6434 value = key + key_len + 1;
6435 for (value_len = 0; level > 0; value_len++) {
6436 switch (value[value_len]) {
6450 value[value_len - 1] = '\0';
6451 pos = value + value_len;
6453 /* There might be no value at all. */
6454 value = key + key_len; /* Will become the empty string below. */
6455 pos = key + key_len + (key[key_len] != '\0');
6457 key[key_len] = '\0';
6465 /* Encode a dump ports request for 'port', the encoded message
6466 * will be for OpenFlow version 'ofp_version'. Returns message
6467 * as a struct ofpbuf. Returns encoded message on success, NULL on error */
6469 ofputil_encode_dump_ports_request(enum ofp_version ofp_version, ofp_port_t port)
6471 struct ofpbuf *request;
6473 switch (ofp_version) {
6474 case OFP10_VERSION: {
6475 struct ofp10_port_stats_request *req;
6476 request = ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST, ofp_version, 0);
6477 req = ofpbuf_put_zeros(request, sizeof *req);
6478 req->port_no = htons(ofp_to_u16(port));
6485 case OFP15_VERSION: {
6486 struct ofp11_port_stats_request *req;
6487 request = ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST, ofp_version, 0);
6488 req = ofpbuf_put_zeros(request, sizeof *req);
6489 req->port_no = ofputil_port_to_ofp11(port);
6500 ofputil_port_stats_to_ofp10(const struct ofputil_port_stats *ops,
6501 struct ofp10_port_stats *ps10)
6503 ps10->port_no = htons(ofp_to_u16(ops->port_no));
6504 memset(ps10->pad, 0, sizeof ps10->pad);
6505 put_32aligned_be64(&ps10->rx_packets, htonll(ops->stats.rx_packets));
6506 put_32aligned_be64(&ps10->tx_packets, htonll(ops->stats.tx_packets));
6507 put_32aligned_be64(&ps10->rx_bytes, htonll(ops->stats.rx_bytes));
6508 put_32aligned_be64(&ps10->tx_bytes, htonll(ops->stats.tx_bytes));
6509 put_32aligned_be64(&ps10->rx_dropped, htonll(ops->stats.rx_dropped));
6510 put_32aligned_be64(&ps10->tx_dropped, htonll(ops->stats.tx_dropped));
6511 put_32aligned_be64(&ps10->rx_errors, htonll(ops->stats.rx_errors));
6512 put_32aligned_be64(&ps10->tx_errors, htonll(ops->stats.tx_errors));
6513 put_32aligned_be64(&ps10->rx_frame_err, htonll(ops->stats.rx_frame_errors));
6514 put_32aligned_be64(&ps10->rx_over_err, htonll(ops->stats.rx_over_errors));
6515 put_32aligned_be64(&ps10->rx_crc_err, htonll(ops->stats.rx_crc_errors));
6516 put_32aligned_be64(&ps10->collisions, htonll(ops->stats.collisions));
6520 ofputil_port_stats_to_ofp11(const struct ofputil_port_stats *ops,
6521 struct ofp11_port_stats *ps11)
6523 ps11->port_no = ofputil_port_to_ofp11(ops->port_no);
6524 memset(ps11->pad, 0, sizeof ps11->pad);
6525 ps11->rx_packets = htonll(ops->stats.rx_packets);
6526 ps11->tx_packets = htonll(ops->stats.tx_packets);
6527 ps11->rx_bytes = htonll(ops->stats.rx_bytes);
6528 ps11->tx_bytes = htonll(ops->stats.tx_bytes);
6529 ps11->rx_dropped = htonll(ops->stats.rx_dropped);
6530 ps11->tx_dropped = htonll(ops->stats.tx_dropped);
6531 ps11->rx_errors = htonll(ops->stats.rx_errors);
6532 ps11->tx_errors = htonll(ops->stats.tx_errors);
6533 ps11->rx_frame_err = htonll(ops->stats.rx_frame_errors);
6534 ps11->rx_over_err = htonll(ops->stats.rx_over_errors);
6535 ps11->rx_crc_err = htonll(ops->stats.rx_crc_errors);
6536 ps11->collisions = htonll(ops->stats.collisions);
6540 ofputil_port_stats_to_ofp13(const struct ofputil_port_stats *ops,
6541 struct ofp13_port_stats *ps13)
6543 ofputil_port_stats_to_ofp11(ops, &ps13->ps);
6544 ps13->duration_sec = htonl(ops->duration_sec);
6545 ps13->duration_nsec = htonl(ops->duration_nsec);
6549 ofputil_append_ofp14_port_stats(const struct ofputil_port_stats *ops,
6550 struct ovs_list *replies)
6552 struct ofp14_port_stats_prop_ethernet *eth;
6553 struct ofp14_port_stats *ps14;
6554 struct ofpbuf *reply;
6556 reply = ofpmp_reserve(replies, sizeof *ps14 + sizeof *eth);
6558 ps14 = ofpbuf_put_uninit(reply, sizeof *ps14);
6559 ps14->length = htons(sizeof *ps14 + sizeof *eth);
6560 memset(ps14->pad, 0, sizeof ps14->pad);
6561 ps14->port_no = ofputil_port_to_ofp11(ops->port_no);
6562 ps14->duration_sec = htonl(ops->duration_sec);
6563 ps14->duration_nsec = htonl(ops->duration_nsec);
6564 ps14->rx_packets = htonll(ops->stats.rx_packets);
6565 ps14->tx_packets = htonll(ops->stats.tx_packets);
6566 ps14->rx_bytes = htonll(ops->stats.rx_bytes);
6567 ps14->tx_bytes = htonll(ops->stats.tx_bytes);
6568 ps14->rx_dropped = htonll(ops->stats.rx_dropped);
6569 ps14->tx_dropped = htonll(ops->stats.tx_dropped);
6570 ps14->rx_errors = htonll(ops->stats.rx_errors);
6571 ps14->tx_errors = htonll(ops->stats.tx_errors);
6573 eth = ofpbuf_put_uninit(reply, sizeof *eth);
6574 eth->type = htons(OFPPSPT14_ETHERNET);
6575 eth->length = htons(sizeof *eth);
6576 memset(eth->pad, 0, sizeof eth->pad);
6577 eth->rx_frame_err = htonll(ops->stats.rx_frame_errors);
6578 eth->rx_over_err = htonll(ops->stats.rx_over_errors);
6579 eth->rx_crc_err = htonll(ops->stats.rx_crc_errors);
6580 eth->collisions = htonll(ops->stats.collisions);
6583 /* Encode a ports stat for 'ops' and append it to 'replies'. */
6585 ofputil_append_port_stat(struct ovs_list *replies,
6586 const struct ofputil_port_stats *ops)
6588 switch (ofpmp_version(replies)) {
6589 case OFP13_VERSION: {
6590 struct ofp13_port_stats *reply = ofpmp_append(replies, sizeof *reply);
6591 ofputil_port_stats_to_ofp13(ops, reply);
6595 case OFP11_VERSION: {
6596 struct ofp11_port_stats *reply = ofpmp_append(replies, sizeof *reply);
6597 ofputil_port_stats_to_ofp11(ops, reply);
6601 case OFP10_VERSION: {
6602 struct ofp10_port_stats *reply = ofpmp_append(replies, sizeof *reply);
6603 ofputil_port_stats_to_ofp10(ops, reply);
6609 ofputil_append_ofp14_port_stats(ops, replies);
6618 ofputil_port_stats_from_ofp10(struct ofputil_port_stats *ops,
6619 const struct ofp10_port_stats *ps10)
6621 memset(ops, 0, sizeof *ops);
6623 ops->port_no = u16_to_ofp(ntohs(ps10->port_no));
6624 ops->stats.rx_packets = ntohll(get_32aligned_be64(&ps10->rx_packets));
6625 ops->stats.tx_packets = ntohll(get_32aligned_be64(&ps10->tx_packets));
6626 ops->stats.rx_bytes = ntohll(get_32aligned_be64(&ps10->rx_bytes));
6627 ops->stats.tx_bytes = ntohll(get_32aligned_be64(&ps10->tx_bytes));
6628 ops->stats.rx_dropped = ntohll(get_32aligned_be64(&ps10->rx_dropped));
6629 ops->stats.tx_dropped = ntohll(get_32aligned_be64(&ps10->tx_dropped));
6630 ops->stats.rx_errors = ntohll(get_32aligned_be64(&ps10->rx_errors));
6631 ops->stats.tx_errors = ntohll(get_32aligned_be64(&ps10->tx_errors));
6632 ops->stats.rx_frame_errors =
6633 ntohll(get_32aligned_be64(&ps10->rx_frame_err));
6634 ops->stats.rx_over_errors = ntohll(get_32aligned_be64(&ps10->rx_over_err));
6635 ops->stats.rx_crc_errors = ntohll(get_32aligned_be64(&ps10->rx_crc_err));
6636 ops->stats.collisions = ntohll(get_32aligned_be64(&ps10->collisions));
6637 ops->duration_sec = ops->duration_nsec = UINT32_MAX;
6643 ofputil_port_stats_from_ofp11(struct ofputil_port_stats *ops,
6644 const struct ofp11_port_stats *ps11)
6648 memset(ops, 0, sizeof *ops);
6649 error = ofputil_port_from_ofp11(ps11->port_no, &ops->port_no);
6654 ops->stats.rx_packets = ntohll(ps11->rx_packets);
6655 ops->stats.tx_packets = ntohll(ps11->tx_packets);
6656 ops->stats.rx_bytes = ntohll(ps11->rx_bytes);
6657 ops->stats.tx_bytes = ntohll(ps11->tx_bytes);
6658 ops->stats.rx_dropped = ntohll(ps11->rx_dropped);
6659 ops->stats.tx_dropped = ntohll(ps11->tx_dropped);
6660 ops->stats.rx_errors = ntohll(ps11->rx_errors);
6661 ops->stats.tx_errors = ntohll(ps11->tx_errors);
6662 ops->stats.rx_frame_errors = ntohll(ps11->rx_frame_err);
6663 ops->stats.rx_over_errors = ntohll(ps11->rx_over_err);
6664 ops->stats.rx_crc_errors = ntohll(ps11->rx_crc_err);
6665 ops->stats.collisions = ntohll(ps11->collisions);
6666 ops->duration_sec = ops->duration_nsec = UINT32_MAX;
6672 ofputil_port_stats_from_ofp13(struct ofputil_port_stats *ops,
6673 const struct ofp13_port_stats *ps13)
6675 enum ofperr error = ofputil_port_stats_from_ofp11(ops, &ps13->ps);
6677 ops->duration_sec = ntohl(ps13->duration_sec);
6678 ops->duration_nsec = ntohl(ps13->duration_nsec);
6684 parse_ofp14_port_stats_ethernet_property(const struct ofpbuf *payload,
6685 struct ofputil_port_stats *ops)
6687 const struct ofp14_port_stats_prop_ethernet *eth = payload->data;
6689 if (payload->size != sizeof *eth) {
6690 return OFPERR_OFPBPC_BAD_LEN;
6693 ops->stats.rx_frame_errors = ntohll(eth->rx_frame_err);
6694 ops->stats.rx_over_errors = ntohll(eth->rx_over_err);
6695 ops->stats.rx_crc_errors = ntohll(eth->rx_crc_err);
6696 ops->stats.collisions = ntohll(eth->collisions);
6702 ofputil_pull_ofp14_port_stats(struct ofputil_port_stats *ops,
6705 const struct ofp14_port_stats *ps14;
6706 struct ofpbuf properties;
6710 ps14 = ofpbuf_try_pull(msg, sizeof *ps14);
6712 return OFPERR_OFPBRC_BAD_LEN;
6715 len = ntohs(ps14->length);
6716 if (len < sizeof *ps14 || len - sizeof *ps14 > msg->size) {
6717 return OFPERR_OFPBRC_BAD_LEN;
6719 len -= sizeof *ps14;
6720 ofpbuf_use_const(&properties, ofpbuf_pull(msg, len), len);
6722 error = ofputil_port_from_ofp11(ps14->port_no, &ops->port_no);
6727 ops->duration_sec = ntohl(ps14->duration_sec);
6728 ops->duration_nsec = ntohl(ps14->duration_nsec);
6729 ops->stats.rx_packets = ntohll(ps14->rx_packets);
6730 ops->stats.tx_packets = ntohll(ps14->tx_packets);
6731 ops->stats.rx_bytes = ntohll(ps14->rx_bytes);
6732 ops->stats.tx_bytes = ntohll(ps14->tx_bytes);
6733 ops->stats.rx_dropped = ntohll(ps14->rx_dropped);
6734 ops->stats.tx_dropped = ntohll(ps14->tx_dropped);
6735 ops->stats.rx_errors = ntohll(ps14->rx_errors);
6736 ops->stats.tx_errors = ntohll(ps14->tx_errors);
6737 ops->stats.rx_frame_errors = UINT64_MAX;
6738 ops->stats.rx_over_errors = UINT64_MAX;
6739 ops->stats.rx_crc_errors = UINT64_MAX;
6740 ops->stats.collisions = UINT64_MAX;
6742 while (properties.size > 0) {
6743 struct ofpbuf payload;
6747 error = ofputil_pull_property(&properties, &payload, &type);
6753 case OFPPSPT14_ETHERNET:
6754 error = parse_ofp14_port_stats_ethernet_property(&payload, ops);
6758 log_property(true, "unknown port stats property %"PRIu16, type);
6771 /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
6774 ofputil_count_port_stats(const struct ofp_header *oh)
6776 struct ofputil_port_stats ps;
6780 ofpbuf_use_const(&b, oh, ntohs(oh->length));
6781 ofpraw_pull_assert(&b);
6782 while (!ofputil_decode_port_stats(&ps, &b)) {
6788 /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
6789 * ofputil_port_stats in 'ps'.
6791 * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
6792 * message. Calling this function multiple times for a single 'msg' iterates
6793 * through the replies. The caller must initially leave 'msg''s layer pointers
6794 * null and not modify them between calls.
6796 * Returns 0 if successful, EOF if no replies were left in this 'msg',
6797 * otherwise a positive errno value. */
6799 ofputil_decode_port_stats(struct ofputil_port_stats *ps, struct ofpbuf *msg)
6804 error = (msg->header ? ofpraw_decode(&raw, msg->header)
6805 : ofpraw_pull(&raw, msg));
6812 } else if (raw == OFPRAW_OFPST14_PORT_REPLY) {
6813 return ofputil_pull_ofp14_port_stats(ps, msg);
6814 } else if (raw == OFPRAW_OFPST13_PORT_REPLY) {
6815 const struct ofp13_port_stats *ps13;
6817 ps13 = ofpbuf_try_pull(msg, sizeof *ps13);
6821 return ofputil_port_stats_from_ofp13(ps, ps13);
6822 } else if (raw == OFPRAW_OFPST11_PORT_REPLY) {
6823 const struct ofp11_port_stats *ps11;
6825 ps11 = ofpbuf_try_pull(msg, sizeof *ps11);
6829 return ofputil_port_stats_from_ofp11(ps, ps11);
6830 } else if (raw == OFPRAW_OFPST10_PORT_REPLY) {
6831 const struct ofp10_port_stats *ps10;
6833 ps10 = ofpbuf_try_pull(msg, sizeof *ps10);
6837 return ofputil_port_stats_from_ofp10(ps, ps10);
6843 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_PORT reply has %"PRIu32" leftover "
6844 "bytes at end", msg->size);
6845 return OFPERR_OFPBRC_BAD_LEN;
6848 /* Parse a port status request message into a 16 bit OpenFlow 1.0
6849 * port number and stores the latter in '*ofp10_port'.
6850 * Returns 0 if successful, otherwise an OFPERR_* number. */
6852 ofputil_decode_port_stats_request(const struct ofp_header *request,
6853 ofp_port_t *ofp10_port)
6855 switch ((enum ofp_version)request->version) {
6860 case OFP11_VERSION: {
6861 const struct ofp11_port_stats_request *psr11 = ofpmsg_body(request);
6862 return ofputil_port_from_ofp11(psr11->port_no, ofp10_port);
6865 case OFP10_VERSION: {
6866 const struct ofp10_port_stats_request *psr10 = ofpmsg_body(request);
6867 *ofp10_port = u16_to_ofp(ntohs(psr10->port_no));
6876 /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */
6878 ofputil_bucket_list_destroy(struct ovs_list *buckets)
6880 struct ofputil_bucket *bucket, *next_bucket;
6882 LIST_FOR_EACH_SAFE (bucket, next_bucket, list_node, buckets) {
6883 list_remove(&bucket->list_node);
6884 free(bucket->ofpacts);
6889 /* Clones 'bucket' and its ofpacts data */
6890 static struct ofputil_bucket *
6891 ofputil_bucket_clone_data(const struct ofputil_bucket *bucket)
6893 struct ofputil_bucket *new;
6895 new = xmemdup(bucket, sizeof *bucket);
6896 new->ofpacts = xmemdup(bucket->ofpacts, bucket->ofpacts_len);
6901 /* Clones each of the buckets in the list 'src' appending them
6902 * in turn to 'dest' which should be an initialised list.
6903 * An exception is that if the pointer value of a bucket in 'src'
6904 * matches 'skip' then it is not cloned or appended to 'dest'.
6905 * This allows all of 'src' or 'all of 'src' except 'skip' to
6906 * be cloned and appended to 'dest'. */
6908 ofputil_bucket_clone_list(struct ovs_list *dest, const struct ovs_list *src,
6909 const struct ofputil_bucket *skip)
6911 struct ofputil_bucket *bucket;
6913 LIST_FOR_EACH (bucket, list_node, src) {
6914 struct ofputil_bucket *new_bucket;
6916 if (bucket == skip) {
6920 new_bucket = ofputil_bucket_clone_data(bucket);
6921 list_push_back(dest, &new_bucket->list_node);
6925 /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id'
6926 * Returns the first bucket found or NULL if no buckets are found. */
6927 struct ofputil_bucket *
6928 ofputil_bucket_find(const struct ovs_list *buckets, uint32_t bucket_id)
6930 struct ofputil_bucket *bucket;
6932 if (bucket_id > OFPG15_BUCKET_MAX) {
6936 LIST_FOR_EACH (bucket, list_node, buckets) {
6937 if (bucket->bucket_id == bucket_id) {
6945 /* Returns true if more than one bucket in the list 'buckets'
6946 * have the same bucket id. Returns false otherwise. */
6948 ofputil_bucket_check_duplicate_id(const struct ovs_list *buckets)
6950 struct ofputil_bucket *i, *j;
6952 LIST_FOR_EACH (i, list_node, buckets) {
6953 LIST_FOR_EACH_REVERSE (j, list_node, buckets) {
6957 if (i->bucket_id == j->bucket_id) {
6966 /* Returns the bucket at the front of the list 'buckets'.
6967 * Undefined if 'buckets is empty. */
6968 struct ofputil_bucket *
6969 ofputil_bucket_list_front(const struct ovs_list *buckets)
6971 static struct ofputil_bucket *bucket;
6973 ASSIGN_CONTAINER(bucket, list_front(buckets), list_node);
6978 /* Returns the bucket at the back of the list 'buckets'.
6979 * Undefined if 'buckets is empty. */
6980 struct ofputil_bucket *
6981 ofputil_bucket_list_back(const struct ovs_list *buckets)
6983 static struct ofputil_bucket *bucket;
6985 ASSIGN_CONTAINER(bucket, list_back(buckets), list_node);
6990 /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version',
6991 * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats
6994 * Group statistics include packet and byte counts for each group. */
6996 ofputil_encode_group_stats_request(enum ofp_version ofp_version,
6999 struct ofpbuf *request;
7001 switch (ofp_version) {
7003 ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later "
7004 "(\'-O OpenFlow11\')");
7009 case OFP15_VERSION: {
7010 struct ofp11_group_stats_request *req;
7011 request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST, ofp_version, 0);
7012 req = ofpbuf_put_zeros(request, sizeof *req);
7013 req->group_id = htonl(group_id);
7023 /* Decodes the OpenFlow group description request in 'oh', returning the group
7024 * whose description is requested, or OFPG_ALL if stats for all groups was
7027 ofputil_decode_group_desc_request(const struct ofp_header *oh)
7029 struct ofpbuf request;
7032 ofpbuf_use_const(&request, oh, ntohs(oh->length));
7033 raw = ofpraw_pull_assert(&request);
7034 if (raw == OFPRAW_OFPST11_GROUP_DESC_REQUEST) {
7036 } else if (raw == OFPRAW_OFPST15_GROUP_DESC_REQUEST) {
7037 ovs_be32 *group_id = ofpbuf_pull(&request, sizeof *group_id);
7038 return ntohl(*group_id);
7044 /* Returns an OpenFlow group description request for OpenFlow version
7045 * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to
7046 * request stats for all groups (OpenFlow 1.4 and earlier always request all
7049 * Group descriptions include the bucket and action configuration for each
7052 ofputil_encode_group_desc_request(enum ofp_version ofp_version,
7055 struct ofpbuf *request;
7058 switch (ofp_version) {
7060 ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later "
7061 "(\'-O OpenFlow11\')");
7066 request = ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST,
7070 request = ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST,
7072 gid = htonl(group_id);
7073 ofpbuf_put(request, &gid, sizeof gid);
7083 ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats *gs,
7084 struct ofp11_bucket_counter bucket_cnts[])
7088 for (i = 0; i < gs->n_buckets; i++) {
7089 bucket_cnts[i].packet_count = htonll(gs->bucket_stats[i].packet_count);
7090 bucket_cnts[i].byte_count = htonll(gs->bucket_stats[i].byte_count);
7095 ofputil_group_stats_to_ofp11(const struct ofputil_group_stats *gs,
7096 struct ofp11_group_stats *gs11, size_t length,
7097 struct ofp11_bucket_counter bucket_cnts[])
7099 memset(gs11, 0, sizeof *gs11);
7100 gs11->length = htons(length);
7101 gs11->group_id = htonl(gs->group_id);
7102 gs11->ref_count = htonl(gs->ref_count);
7103 gs11->packet_count = htonll(gs->packet_count);
7104 gs11->byte_count = htonll(gs->byte_count);
7105 ofputil_group_bucket_counters_to_ofp11(gs, bucket_cnts);
7109 ofputil_group_stats_to_ofp13(const struct ofputil_group_stats *gs,
7110 struct ofp13_group_stats *gs13, size_t length,
7111 struct ofp11_bucket_counter bucket_cnts[])
7113 ofputil_group_stats_to_ofp11(gs, &gs13->gs, length, bucket_cnts);
7114 gs13->duration_sec = htonl(gs->duration_sec);
7115 gs13->duration_nsec = htonl(gs->duration_nsec);
7119 /* Encodes 'gs' properly for the format of the list of group statistics
7120 * replies already begun in 'replies' and appends it to the list. 'replies'
7121 * must have originally been initialized with ofpmp_init(). */
7123 ofputil_append_group_stats(struct ovs_list *replies,
7124 const struct ofputil_group_stats *gs)
7126 size_t bucket_counter_size;
7127 struct ofp11_bucket_counter *bucket_counters;
7130 bucket_counter_size = gs->n_buckets * sizeof(struct ofp11_bucket_counter);
7132 switch (ofpmp_version(replies)) {
7134 case OFP12_VERSION:{
7135 struct ofp11_group_stats *gs11;
7137 length = sizeof *gs11 + bucket_counter_size;
7138 gs11 = ofpmp_append(replies, length);
7139 bucket_counters = (struct ofp11_bucket_counter *)(gs11 + 1);
7140 ofputil_group_stats_to_ofp11(gs, gs11, length, bucket_counters);
7146 case OFP15_VERSION: {
7147 struct ofp13_group_stats *gs13;
7149 length = sizeof *gs13 + bucket_counter_size;
7150 gs13 = ofpmp_append(replies, length);
7151 bucket_counters = (struct ofp11_bucket_counter *)(gs13 + 1);
7152 ofputil_group_stats_to_ofp13(gs, gs13, length, bucket_counters);
7161 /* Returns an OpenFlow group features request for OpenFlow version
7164 ofputil_encode_group_features_request(enum ofp_version ofp_version)
7166 struct ofpbuf *request = NULL;
7168 switch (ofp_version) {
7171 ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later "
7172 "(\'-O OpenFlow12\')");
7177 request = ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST,
7187 /* Returns a OpenFlow message that encodes 'features' properly as a reply to
7188 * group features request 'request'. */
7190 ofputil_encode_group_features_reply(
7191 const struct ofputil_group_features *features,
7192 const struct ofp_header *request)
7194 struct ofp12_group_features_stats *ogf;
7195 struct ofpbuf *reply;
7198 reply = ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY,
7199 request->version, request->xid, 0);
7200 ogf = ofpbuf_put_zeros(reply, sizeof *ogf);
7201 ogf->types = htonl(features->types);
7202 ogf->capabilities = htonl(features->capabilities);
7203 for (i = 0; i < OFPGT12_N_TYPES; i++) {
7204 ogf->max_groups[i] = htonl(features->max_groups[i]);
7205 ogf->actions[i] = ofpact_bitmap_to_openflow(features->ofpacts[i],
7212 /* Decodes group features reply 'oh' into 'features'. */
7214 ofputil_decode_group_features_reply(const struct ofp_header *oh,
7215 struct ofputil_group_features *features)
7217 const struct ofp12_group_features_stats *ogf = ofpmsg_body(oh);
7220 features->types = ntohl(ogf->types);
7221 features->capabilities = ntohl(ogf->capabilities);
7222 for (i = 0; i < OFPGT12_N_TYPES; i++) {
7223 features->max_groups[i] = ntohl(ogf->max_groups[i]);
7224 features->ofpacts[i] = ofpact_bitmap_from_openflow(
7225 ogf->actions[i], oh->version);
7229 /* Parse a group status request message into a 32 bit OpenFlow 1.1
7230 * group ID and stores the latter in '*group_id'.
7231 * Returns 0 if successful, otherwise an OFPERR_* number. */
7233 ofputil_decode_group_stats_request(const struct ofp_header *request,
7236 const struct ofp11_group_stats_request *gsr11 = ofpmsg_body(request);
7237 *group_id = ntohl(gsr11->group_id);
7241 /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats
7242 * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the
7243 * caller to eventually free.
7245 * Multiple group stats replies can be packed into a single OpenFlow message.
7246 * Calling this function multiple times for a single 'msg' iterates through the
7247 * replies. The caller must initially leave 'msg''s layer pointers null and
7248 * not modify them between calls.
7250 * Returns 0 if successful, EOF if no replies were left in this 'msg',
7251 * otherwise a positive errno value. */
7253 ofputil_decode_group_stats_reply(struct ofpbuf *msg,
7254 struct ofputil_group_stats *gs)
7256 struct ofp11_bucket_counter *obc;
7257 struct ofp11_group_stats *ogs11;
7264 gs->bucket_stats = NULL;
7265 error = (msg->header ? ofpraw_decode(&raw, msg->header)
7266 : ofpraw_pull(&raw, msg));
7275 if (raw == OFPRAW_OFPST11_GROUP_REPLY) {
7276 base_len = sizeof *ogs11;
7277 ogs11 = ofpbuf_try_pull(msg, sizeof *ogs11);
7278 gs->duration_sec = gs->duration_nsec = UINT32_MAX;
7279 } else if (raw == OFPRAW_OFPST13_GROUP_REPLY) {
7280 struct ofp13_group_stats *ogs13;
7282 base_len = sizeof *ogs13;
7283 ogs13 = ofpbuf_try_pull(msg, sizeof *ogs13);
7286 gs->duration_sec = ntohl(ogs13->duration_sec);
7287 gs->duration_nsec = ntohl(ogs13->duration_nsec);
7296 VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end",
7297 ofpraw_get_name(raw), msg->size);
7298 return OFPERR_OFPBRC_BAD_LEN;
7300 length = ntohs(ogs11->length);
7301 if (length < sizeof base_len) {
7302 VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply claims invalid length %"PRIuSIZE,
7303 ofpraw_get_name(raw), length);
7304 return OFPERR_OFPBRC_BAD_LEN;
7307 gs->group_id = ntohl(ogs11->group_id);
7308 gs->ref_count = ntohl(ogs11->ref_count);
7309 gs->packet_count = ntohll(ogs11->packet_count);
7310 gs->byte_count = ntohll(ogs11->byte_count);
7312 gs->n_buckets = (length - base_len) / sizeof *obc;
7313 obc = ofpbuf_try_pull(msg, gs->n_buckets * sizeof *obc);
7315 VLOG_WARN_RL(&bad_ofmsg_rl, "%s reply has %"PRIu32" leftover bytes at end",
7316 ofpraw_get_name(raw), msg->size);
7317 return OFPERR_OFPBRC_BAD_LEN;
7320 gs->bucket_stats = xmalloc(gs->n_buckets * sizeof *gs->bucket_stats);
7321 for (i = 0; i < gs->n_buckets; i++) {
7322 gs->bucket_stats[i].packet_count = ntohll(obc[i].packet_count);
7323 gs->bucket_stats[i].byte_count = ntohll(obc[i].byte_count);
7330 ofputil_put_ofp11_bucket(const struct ofputil_bucket *bucket,
7331 struct ofpbuf *openflow, enum ofp_version ofp_version)
7333 struct ofp11_bucket *ob;
7336 start = openflow->size;
7337 ofpbuf_put_zeros(openflow, sizeof *ob);
7338 ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len,
7339 openflow, ofp_version);
7340 ob = ofpbuf_at_assert(openflow, start, sizeof *ob);
7341 ob->len = htons(openflow->size - start);
7342 ob->weight = htons(bucket->weight);
7343 ob->watch_port = ofputil_port_to_ofp11(bucket->watch_port);
7344 ob->watch_group = htonl(bucket->watch_group);
7348 ofputil_put_ofp15_group_bucket_prop_weight(ovs_be16 weight,
7349 struct ofpbuf *openflow)
7352 struct ofp15_group_bucket_prop_weight *prop;
7354 start_ofs = start_property(openflow, OFPGBPT15_WEIGHT);
7355 ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header));
7356 prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop);
7357 prop->weight = weight;
7358 end_property(openflow, start_ofs);
7362 ofputil_put_ofp15_group_bucket_prop_watch(ovs_be32 watch, uint16_t type,
7363 struct ofpbuf *openflow)
7366 struct ofp15_group_bucket_prop_watch *prop;
7368 start_ofs = start_property(openflow, type);
7369 ofpbuf_put_zeros(openflow, sizeof *prop - sizeof(struct ofp_prop_header));
7370 prop = ofpbuf_at_assert(openflow, start_ofs, sizeof *prop);
7371 prop->watch = watch;
7372 end_property(openflow, start_ofs);
7376 ofputil_put_ofp15_bucket(const struct ofputil_bucket *bucket,
7377 uint32_t bucket_id, enum ofp11_group_type group_type,
7378 struct ofpbuf *openflow, enum ofp_version ofp_version)
7380 struct ofp15_bucket *ob;
7381 size_t start, actions_start, actions_len;
7383 start = openflow->size;
7384 ofpbuf_put_zeros(openflow, sizeof *ob);
7386 actions_start = openflow->size;
7387 ofpacts_put_openflow_actions(bucket->ofpacts, bucket->ofpacts_len,
7388 openflow, ofp_version);
7389 actions_len = openflow->size - actions_start;
7391 if (group_type == OFPGT11_SELECT) {
7392 ofputil_put_ofp15_group_bucket_prop_weight(htons(bucket->weight),
7395 if (bucket->watch_port != OFPP_ANY) {
7396 ovs_be32 port = ofputil_port_to_ofp11(bucket->watch_port);
7397 ofputil_put_ofp15_group_bucket_prop_watch(port,
7398 OFPGBPT15_WATCH_PORT,
7401 if (bucket->watch_group != OFPG_ANY) {
7402 ovs_be32 group = htonl(bucket->watch_group);
7403 ofputil_put_ofp15_group_bucket_prop_watch(group,
7404 OFPGBPT15_WATCH_GROUP,
7408 ob = ofpbuf_at_assert(openflow, start, sizeof *ob);
7409 ob->len = htons(openflow->size - start);
7410 ob->action_array_len = htons(actions_len);
7411 ob->bucket_id = htonl(bucket_id);
7415 ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc *gds,
7416 const struct ovs_list *buckets,
7417 struct ovs_list *replies,
7418 enum ofp_version version)
7420 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
7421 struct ofp11_group_desc_stats *ogds;
7422 struct ofputil_bucket *bucket;
7425 start_ogds = reply->size;
7426 ofpbuf_put_zeros(reply, sizeof *ogds);
7427 LIST_FOR_EACH (bucket, list_node, buckets) {
7428 ofputil_put_ofp11_bucket(bucket, reply, version);
7430 ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds);
7431 ogds->length = htons(reply->size - start_ogds);
7432 ogds->type = gds->type;
7433 ogds->group_id = htonl(gds->group_id);
7435 ofpmp_postappend(replies, start_ogds);
7439 ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc *gds,
7440 const struct ovs_list *buckets,
7441 struct ovs_list *replies,
7442 enum ofp_version version)
7444 struct ofpbuf *reply = ofpbuf_from_list(list_back(replies));
7445 struct ofp15_group_desc_stats *ogds;
7446 struct ofputil_bucket *bucket;
7447 size_t start_ogds, start_buckets;
7449 start_ogds = reply->size;
7450 ofpbuf_put_zeros(reply, sizeof *ogds);
7451 start_buckets = reply->size;
7452 LIST_FOR_EACH (bucket, list_node, buckets) {
7453 ofputil_put_ofp15_bucket(bucket, bucket->bucket_id,
7454 gds->type, reply, version);
7456 ogds = ofpbuf_at_assert(reply, start_ogds, sizeof *ogds);
7457 ogds->length = htons(reply->size - start_ogds);
7458 ogds->type = gds->type;
7459 ogds->group_id = htonl(gds->group_id);
7460 ogds->bucket_list_len = htons(reply->size - start_buckets);
7462 ofpmp_postappend(replies, start_ogds);
7465 /* Appends a group stats reply that contains the data in 'gds' to those already
7466 * present in the list of ofpbufs in 'replies'. 'replies' should have been
7467 * initialized with ofpmp_init(). */
7469 ofputil_append_group_desc_reply(const struct ofputil_group_desc *gds,
7470 const struct ovs_list *buckets,
7471 struct ovs_list *replies)
7473 enum ofp_version version = ofpmp_version(replies);
7481 ofputil_append_ofp11_group_desc_reply(gds, buckets, replies, version);
7485 ofputil_append_ofp15_group_desc_reply(gds, buckets, replies, version);
7495 ofputil_pull_ofp11_buckets(struct ofpbuf *msg, size_t buckets_length,
7496 enum ofp_version version, struct ovs_list *buckets)
7498 struct ofp11_bucket *ob;
7499 uint32_t bucket_id = 0;
7502 while (buckets_length > 0) {
7503 struct ofputil_bucket *bucket;
7504 struct ofpbuf ofpacts;
7508 ob = (buckets_length >= sizeof *ob
7509 ? ofpbuf_try_pull(msg, sizeof *ob)
7512 VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE" leftover bytes",
7514 return OFPERR_OFPGMFC_BAD_BUCKET;
7517 ob_len = ntohs(ob->len);
7518 if (ob_len < sizeof *ob) {
7519 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
7520 "%"PRIuSIZE" is not valid", ob_len);
7521 return OFPERR_OFPGMFC_BAD_BUCKET;
7522 } else if (ob_len > buckets_length) {
7523 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
7524 "%"PRIuSIZE" exceeds remaining buckets data size %"PRIuSIZE,
7525 ob_len, buckets_length);
7526 return OFPERR_OFPGMFC_BAD_BUCKET;
7528 buckets_length -= ob_len;
7530 ofpbuf_init(&ofpacts, 0);
7531 error = ofpacts_pull_openflow_actions(msg, ob_len - sizeof *ob,
7534 ofpbuf_uninit(&ofpacts);
7535 ofputil_bucket_list_destroy(buckets);
7539 bucket = xzalloc(sizeof *bucket);
7540 bucket->weight = ntohs(ob->weight);
7541 error = ofputil_port_from_ofp11(ob->watch_port, &bucket->watch_port);
7543 ofpbuf_uninit(&ofpacts);
7544 ofputil_bucket_list_destroy(buckets);
7545 return OFPERR_OFPGMFC_BAD_WATCH;
7547 bucket->watch_group = ntohl(ob->watch_group);
7548 bucket->bucket_id = bucket_id++;
7550 bucket->ofpacts = ofpbuf_steal_data(&ofpacts);
7551 bucket->ofpacts_len = ofpacts.size;
7552 list_push_back(buckets, &bucket->list_node);
7559 parse_ofp15_group_bucket_prop_weight(const struct ofpbuf *payload,
7562 struct ofp15_group_bucket_prop_weight *prop = payload->data;
7564 if (payload->size != sizeof *prop) {
7565 log_property(false, "OpenFlow bucket weight property length "
7566 "%u is not valid", payload->size);
7567 return OFPERR_OFPBPC_BAD_LEN;
7570 *weight = prop->weight;
7576 parse_ofp15_group_bucket_prop_watch(const struct ofpbuf *payload,
7579 struct ofp15_group_bucket_prop_watch *prop = payload->data;
7581 if (payload->size != sizeof *prop) {
7582 log_property(false, "OpenFlow bucket watch port or group "
7583 "property length %u is not valid", payload->size);
7584 return OFPERR_OFPBPC_BAD_LEN;
7587 *watch = prop->watch;
7593 ofputil_pull_ofp15_buckets(struct ofpbuf *msg, size_t buckets_length,
7594 enum ofp_version version, struct ovs_list *buckets)
7596 struct ofp15_bucket *ob;
7599 while (buckets_length > 0) {
7600 struct ofputil_bucket *bucket = NULL;
7601 struct ofpbuf ofpacts;
7602 enum ofperr err = OFPERR_OFPGMFC_BAD_BUCKET;
7603 struct ofpbuf properties;
7604 size_t ob_len, actions_len, properties_len;
7605 ovs_be32 watch_port = ofputil_port_to_ofp11(OFPP_ANY);
7606 ovs_be32 watch_group = htonl(OFPG_ANY);
7607 ovs_be16 weight = htons(1);
7609 ofpbuf_init(&ofpacts, 0);
7611 ob = ofpbuf_try_pull(msg, sizeof *ob);
7613 VLOG_WARN_RL(&bad_ofmsg_rl, "buckets end with %"PRIuSIZE
7614 " leftover bytes", buckets_length);
7618 ob_len = ntohs(ob->len);
7619 actions_len = ntohs(ob->action_array_len);
7621 if (ob_len < sizeof *ob) {
7622 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
7623 "%"PRIuSIZE" is not valid", ob_len);
7625 } else if (ob_len > buckets_length) {
7626 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket length "
7627 "%"PRIuSIZE" exceeds remaining buckets data size %"
7628 PRIuSIZE, ob_len, buckets_length);
7630 } else if (actions_len > ob_len - sizeof *ob) {
7631 VLOG_WARN_RL(&bad_ofmsg_rl, "OpenFlow message bucket actions "
7632 "length %"PRIuSIZE" exceeds remaining bucket "
7633 "data size %"PRIuSIZE, actions_len,
7634 ob_len - sizeof *ob);
7637 buckets_length -= ob_len;
7639 err = ofpacts_pull_openflow_actions(msg, actions_len, version,
7645 properties_len = ob_len - sizeof *ob - actions_len;
7646 ofpbuf_use_const(&properties, ofpbuf_pull(msg, properties_len),
7649 while (properties.size > 0) {
7650 struct ofpbuf payload;
7653 err = ofputil_pull_property(&properties, &payload, &type);
7659 case OFPGBPT15_WEIGHT:
7660 err = parse_ofp15_group_bucket_prop_weight(&payload, &weight);
7663 case OFPGBPT15_WATCH_PORT:
7664 err = parse_ofp15_group_bucket_prop_watch(&payload,
7668 case OFPGBPT15_WATCH_GROUP:
7669 err = parse_ofp15_group_bucket_prop_watch(&payload,
7674 log_property(false, "unknown group bucket property %"PRIu16,
7676 err = OFPERR_OFPBPC_BAD_TYPE;
7685 bucket = xzalloc(sizeof *bucket);
7687 bucket->weight = ntohs(weight);
7688 err = ofputil_port_from_ofp11(watch_port, &bucket->watch_port);
7690 err = OFPERR_OFPGMFC_BAD_WATCH;
7693 bucket->watch_group = ntohl(watch_group);
7694 bucket->bucket_id = ntohl(ob->bucket_id);
7695 if (bucket->bucket_id > OFPG15_BUCKET_MAX) {
7696 VLOG_WARN_RL(&bad_ofmsg_rl, "bucket id (%u) is out of range",
7698 err = OFPERR_OFPGMFC_BAD_BUCKET;
7702 bucket->ofpacts = ofpbuf_steal_data(&ofpacts);
7703 bucket->ofpacts_len = ofpacts.size;
7704 list_push_back(buckets, &bucket->list_node);
7710 ofpbuf_uninit(&ofpacts);
7711 ofputil_bucket_list_destroy(buckets);
7715 if (ofputil_bucket_check_duplicate_id(buckets)) {
7716 VLOG_WARN_RL(&bad_ofmsg_rl, "Duplicate bucket id");
7717 ofputil_bucket_list_destroy(buckets);
7718 return OFPERR_OFPGMFC_BAD_BUCKET;
7725 ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc *gd,
7727 enum ofp_version version)
7729 struct ofp11_group_desc_stats *ogds;
7733 ofpraw_pull_assert(msg);
7740 ogds = ofpbuf_try_pull(msg, sizeof *ogds);
7742 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" "
7743 "leftover bytes at end", msg->size);
7744 return OFPERR_OFPBRC_BAD_LEN;
7746 gd->type = ogds->type;
7747 gd->group_id = ntohl(ogds->group_id);
7749 length = ntohs(ogds->length);
7750 if (length < sizeof *ogds || length - sizeof *ogds > msg->size) {
7751 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid "
7752 "length %"PRIuSIZE, length);
7753 return OFPERR_OFPBRC_BAD_LEN;
7756 return ofputil_pull_ofp11_buckets(msg, length - sizeof *ogds, version,
7761 ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc *gd,
7763 enum ofp_version version)
7765 struct ofp15_group_desc_stats *ogds;
7766 uint16_t length, bucket_list_len;
7769 ofpraw_pull_assert(msg);
7776 ogds = ofpbuf_try_pull(msg, sizeof *ogds);
7778 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply has %"PRIu32" "
7779 "leftover bytes at end", msg->size);
7780 return OFPERR_OFPBRC_BAD_LEN;
7782 gd->type = ogds->type;
7783 gd->group_id = ntohl(ogds->group_id);
7785 length = ntohs(ogds->length);
7786 if (length < sizeof *ogds || length - sizeof *ogds > msg->size) {
7787 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid "
7788 "length %u", length);
7789 return OFPERR_OFPBRC_BAD_LEN;
7792 bucket_list_len = ntohs(ogds->bucket_list_len);
7793 if (length < bucket_list_len + sizeof *ogds) {
7794 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST11_GROUP_DESC reply claims invalid "
7795 "bucket list length %u", bucket_list_len);
7796 return OFPERR_OFPBRC_BAD_LEN;
7799 return ofputil_pull_ofp15_buckets(msg, bucket_list_len, version,
7803 /* Converts a group description reply in 'msg' into an abstract
7804 * ofputil_group_desc in 'gd'.
7806 * Multiple group description replies can be packed into a single OpenFlow
7807 * message. Calling this function multiple times for a single 'msg' iterates
7808 * through the replies. The caller must initially leave 'msg''s layer pointers
7809 * null and not modify them between calls.
7811 * Returns 0 if successful, EOF if no replies were left in this 'msg',
7812 * otherwise a positive errno value. */
7814 ofputil_decode_group_desc_reply(struct ofputil_group_desc *gd,
7815 struct ofpbuf *msg, enum ofp_version version)
7823 return ofputil_decode_ofp11_group_desc_reply(gd, msg, version);
7826 return ofputil_decode_ofp15_group_desc_reply(gd, msg, version);
7834 static struct ofpbuf *
7835 ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version,
7836 const struct ofputil_group_mod *gm)
7839 struct ofp11_group_mod *ogm;
7841 struct ofputil_bucket *bucket;
7843 b = ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD, ofp_version, 0);
7844 start_ogm = b->size;
7845 ofpbuf_put_zeros(b, sizeof *ogm);
7847 LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
7848 ofputil_put_ofp11_bucket(bucket, b, ofp_version);
7850 ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm);
7851 ogm->command = htons(gm->command);
7852 ogm->type = gm->type;
7853 ogm->group_id = htonl(gm->group_id);
7858 static struct ofpbuf *
7859 ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version,
7860 const struct ofputil_group_mod *gm)
7863 struct ofp15_group_mod *ogm;
7865 struct ofputil_bucket *bucket;
7866 struct id_pool *bucket_ids = NULL;
7868 b = ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD, ofp_version, 0);
7869 start_ogm = b->size;
7870 ofpbuf_put_zeros(b, sizeof *ogm);
7872 LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
7875 /* Generate a bucket id if none was supplied */
7876 if (bucket->bucket_id > OFPG15_BUCKET_MAX) {
7878 const struct ofputil_bucket *bkt;
7880 bucket_ids = id_pool_create(0, OFPG15_BUCKET_MAX + 1);
7882 /* Mark all bucket_ids that are present in gm
7883 * as used in the pool. */
7884 LIST_FOR_EACH_REVERSE (bkt, list_node, &gm->buckets) {
7885 if (bkt == bucket) {
7888 if (bkt->bucket_id <= OFPG15_BUCKET_MAX) {
7889 id_pool_add(bucket_ids, bkt->bucket_id);
7894 if (!id_pool_alloc_id(bucket_ids, &bucket_id)) {
7898 bucket_id = bucket->bucket_id;
7901 ofputil_put_ofp15_bucket(bucket, bucket_id, gm->type, b, ofp_version);
7903 ogm = ofpbuf_at_assert(b, start_ogm, sizeof *ogm);
7904 ogm->command = htons(gm->command);
7905 ogm->type = gm->type;
7906 ogm->group_id = htonl(gm->group_id);
7907 ogm->command_bucket_id = htonl(gm->command_bucket_id);
7908 ogm->bucket_array_len = htons(b->size - start_ogm - sizeof *ogm);
7910 id_pool_destroy(bucket_ids);
7915 bad_group_cmd(enum ofp15_group_mod_command cmd) {
7916 const char *opt_version;
7917 const char *version;
7918 const char *cmd_str;
7922 case OFPGC15_MODIFY:
7923 case OFPGC15_DELETE:
7928 case OFPGC15_INSERT_BUCKET:
7929 case OFPGC15_REMOVE_BUCKET:
7939 cmd_str = "add-group";
7942 case OFPGC15_MODIFY:
7943 cmd_str = "mod-group";
7946 case OFPGC15_DELETE:
7947 cmd_str = "del-group";
7950 case OFPGC15_INSERT_BUCKET:
7951 cmd_str = "insert-bucket";
7954 case OFPGC15_REMOVE_BUCKET:
7955 cmd_str = "insert-bucket";
7962 ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')",
7963 cmd_str, version, opt_version);
7967 /* Converts abstract group mod 'gm' into a message for OpenFlow version
7968 * 'ofp_version' and returns the message. */
7970 ofputil_encode_group_mod(enum ofp_version ofp_version,
7971 const struct ofputil_group_mod *gm)
7974 switch (ofp_version) {
7976 bad_group_cmd(gm->command);
7982 if (gm->command > OFPGC11_DELETE) {
7983 bad_group_cmd(gm->command);
7985 return ofputil_encode_ofp11_group_mod(ofp_version, gm);
7988 return ofputil_encode_ofp15_group_mod(ofp_version, gm);
7996 ofputil_pull_ofp11_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version,
7997 struct ofputil_group_mod *gm)
7999 const struct ofp11_group_mod *ogm;
8002 ogm = ofpbuf_pull(msg, sizeof *ogm);
8003 gm->command = ntohs(ogm->command);
8004 gm->type = ogm->type;
8005 gm->group_id = ntohl(ogm->group_id);
8006 gm->command_bucket_id = OFPG15_BUCKET_ALL;
8008 error = ofputil_pull_ofp11_buckets(msg, msg->size, ofp_version,
8011 /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */
8013 && ofp_version >= OFP13_VERSION
8014 && gm->command == OFPGC11_DELETE
8015 && !list_is_empty(&gm->buckets)) {
8016 error = OFPERR_OFPGMFC_INVALID_GROUP;
8023 ofputil_pull_ofp15_group_mod(struct ofpbuf *msg, enum ofp_version ofp_version,
8024 struct ofputil_group_mod *gm)
8026 const struct ofp15_group_mod *ogm;
8027 uint16_t bucket_list_len;
8028 enum ofperr error = OFPERR_OFPGMFC_BAD_BUCKET;
8030 ogm = ofpbuf_pull(msg, sizeof *ogm);
8031 gm->command = ntohs(ogm->command);
8032 gm->type = ogm->type;
8033 gm->group_id = ntohl(ogm->group_id);
8035 gm->command_bucket_id = ntohl(ogm->command_bucket_id);
8036 switch (gm->command) {
8037 case OFPGC15_REMOVE_BUCKET:
8038 if (gm->command_bucket_id == OFPG15_BUCKET_ALL) {
8042 case OFPGC15_INSERT_BUCKET:
8043 if (gm->command_bucket_id <= OFPG15_BUCKET_MAX ||
8044 gm->command_bucket_id == OFPG15_BUCKET_FIRST
8045 || gm->command_bucket_id == OFPG15_BUCKET_LAST) {
8051 case OFPGC11_MODIFY:
8052 case OFPGC11_DELETE:
8054 if (gm->command_bucket_id == OFPG15_BUCKET_ALL) {
8060 VLOG_WARN_RL(&bad_ofmsg_rl,
8061 "group command bucket id (%u) is out of range",
8062 gm->command_bucket_id);
8063 return OFPERR_OFPGMFC_BAD_BUCKET;
8066 bucket_list_len = ntohs(ogm->bucket_array_len);
8067 if (bucket_list_len < msg->size) {
8068 VLOG_WARN_RL(&bad_ofmsg_rl, "group has %u trailing bytes",
8069 msg->size - bucket_list_len);
8070 return OFPERR_OFPGMFC_BAD_BUCKET;
8073 return ofputil_pull_ofp15_buckets(msg, bucket_list_len, ofp_version,
8077 /* Converts OpenFlow group mod message 'oh' into an abstract group mod in
8078 * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */
8080 ofputil_decode_group_mod(const struct ofp_header *oh,
8081 struct ofputil_group_mod *gm)
8083 enum ofp_version ofp_version = oh->version;
8085 struct ofputil_bucket *bucket;
8088 ofpbuf_use_const(&msg, oh, ntohs(oh->length));
8089 ofpraw_pull_assert(&msg);
8091 switch (ofp_version)
8097 err = ofputil_pull_ofp11_group_mod(&msg, ofp_version, gm);
8101 err = ofputil_pull_ofp15_group_mod(&msg, ofp_version, gm);
8114 case OFPGT11_INDIRECT:
8115 if (!list_is_singleton(&gm->buckets)) {
8116 return OFPERR_OFPGMFC_INVALID_GROUP;
8120 case OFPGT11_SELECT:
8127 switch (gm->command) {
8129 case OFPGC11_MODIFY:
8130 case OFPGC11_DELETE:
8131 case OFPGC15_INSERT_BUCKET:
8133 case OFPGC15_REMOVE_BUCKET:
8134 if (!list_is_empty(&gm->buckets)) {
8135 return OFPERR_OFPGMFC_BAD_BUCKET;
8142 LIST_FOR_EACH (bucket, list_node, &gm->buckets) {
8145 case OFPGT11_INDIRECT:
8146 if (ofputil_bucket_has_liveness(bucket)) {
8147 return OFPERR_OFPGMFC_WATCH_UNSUPPORTED;
8150 case OFPGT11_SELECT:
8153 if (!ofputil_bucket_has_liveness(bucket)) {
8154 return OFPERR_OFPGMFC_INVALID_GROUP;
8165 /* Parse a queue status request message into 'oqsr'.
8166 * Returns 0 if successful, otherwise an OFPERR_* number. */
8168 ofputil_decode_queue_stats_request(const struct ofp_header *request,
8169 struct ofputil_queue_stats_request *oqsr)
8171 switch ((enum ofp_version)request->version) {
8176 case OFP11_VERSION: {
8177 const struct ofp11_queue_stats_request *qsr11 = ofpmsg_body(request);
8178 oqsr->queue_id = ntohl(qsr11->queue_id);
8179 return ofputil_port_from_ofp11(qsr11->port_no, &oqsr->port_no);
8182 case OFP10_VERSION: {
8183 const struct ofp10_queue_stats_request *qsr10 = ofpmsg_body(request);
8184 oqsr->queue_id = ntohl(qsr10->queue_id);
8185 oqsr->port_no = u16_to_ofp(ntohs(qsr10->port_no));
8186 /* OF 1.0 uses OFPP_ALL for OFPP_ANY */
8187 if (oqsr->port_no == OFPP_ALL) {
8188 oqsr->port_no = OFPP_ANY;
8198 /* Encode a queue stats request for 'oqsr', the encoded message
8199 * will be for OpenFlow version 'ofp_version'. Returns message
8200 * as a struct ofpbuf. Returns encoded message on success, NULL on error. */
8202 ofputil_encode_queue_stats_request(enum ofp_version ofp_version,
8203 const struct ofputil_queue_stats_request *oqsr)
8205 struct ofpbuf *request;
8207 switch (ofp_version) {
8212 case OFP15_VERSION: {
8213 struct ofp11_queue_stats_request *req;
8214 request = ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST, ofp_version, 0);
8215 req = ofpbuf_put_zeros(request, sizeof *req);
8216 req->port_no = ofputil_port_to_ofp11(oqsr->port_no);
8217 req->queue_id = htonl(oqsr->queue_id);
8220 case OFP10_VERSION: {
8221 struct ofp10_queue_stats_request *req;
8222 request = ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST, ofp_version, 0);
8223 req = ofpbuf_put_zeros(request, sizeof *req);
8224 /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */
8225 req->port_no = htons(ofp_to_u16(oqsr->port_no == OFPP_ANY
8226 ? OFPP_ALL : oqsr->port_no));
8227 req->queue_id = htonl(oqsr->queue_id);
8237 /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY
8240 ofputil_count_queue_stats(const struct ofp_header *oh)
8242 struct ofputil_queue_stats qs;
8246 ofpbuf_use_const(&b, oh, ntohs(oh->length));
8247 ofpraw_pull_assert(&b);
8248 while (!ofputil_decode_queue_stats(&qs, &b)) {
8255 ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats *oqs,
8256 const struct ofp10_queue_stats *qs10)
8258 oqs->port_no = u16_to_ofp(ntohs(qs10->port_no));
8259 oqs->queue_id = ntohl(qs10->queue_id);
8260 oqs->tx_bytes = ntohll(get_32aligned_be64(&qs10->tx_bytes));
8261 oqs->tx_packets = ntohll(get_32aligned_be64(&qs10->tx_packets));
8262 oqs->tx_errors = ntohll(get_32aligned_be64(&qs10->tx_errors));
8263 oqs->duration_sec = oqs->duration_nsec = UINT32_MAX;
8269 ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats *oqs,
8270 const struct ofp11_queue_stats *qs11)
8274 error = ofputil_port_from_ofp11(qs11->port_no, &oqs->port_no);
8279 oqs->queue_id = ntohl(qs11->queue_id);
8280 oqs->tx_bytes = ntohll(qs11->tx_bytes);
8281 oqs->tx_packets = ntohll(qs11->tx_packets);
8282 oqs->tx_errors = ntohll(qs11->tx_errors);
8283 oqs->duration_sec = oqs->duration_nsec = UINT32_MAX;
8289 ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats *oqs,
8290 const struct ofp13_queue_stats *qs13)
8292 enum ofperr error = ofputil_queue_stats_from_ofp11(oqs, &qs13->qs);
8294 oqs->duration_sec = ntohl(qs13->duration_sec);
8295 oqs->duration_nsec = ntohl(qs13->duration_nsec);
8302 ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats *oqs,
8305 const struct ofp14_queue_stats *qs14;
8308 qs14 = ofpbuf_try_pull(msg, sizeof *qs14);
8310 return OFPERR_OFPBRC_BAD_LEN;
8313 len = ntohs(qs14->length);
8314 if (len < sizeof *qs14 || len - sizeof *qs14 > msg->size) {
8315 return OFPERR_OFPBRC_BAD_LEN;
8317 ofpbuf_pull(msg, len - sizeof *qs14);
8319 /* No properties yet defined, so ignore them for now. */
8321 return ofputil_queue_stats_from_ofp13(oqs, &qs14->qs);
8324 /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract
8325 * ofputil_queue_stats in 'qs'.
8327 * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow
8328 * message. Calling this function multiple times for a single 'msg' iterates
8329 * through the replies. The caller must initially leave 'msg''s layer pointers
8330 * null and not modify them between calls.
8332 * Returns 0 if successful, EOF if no replies were left in this 'msg',
8333 * otherwise a positive errno value. */
8335 ofputil_decode_queue_stats(struct ofputil_queue_stats *qs, struct ofpbuf *msg)
8340 error = (msg->header ? ofpraw_decode(&raw, msg->header)
8341 : ofpraw_pull(&raw, msg));
8348 } else if (raw == OFPRAW_OFPST14_QUEUE_REPLY) {
8349 return ofputil_pull_ofp14_queue_stats(qs, msg);
8350 } else if (raw == OFPRAW_OFPST13_QUEUE_REPLY) {
8351 const struct ofp13_queue_stats *qs13;
8353 qs13 = ofpbuf_try_pull(msg, sizeof *qs13);
8357 return ofputil_queue_stats_from_ofp13(qs, qs13);
8358 } else if (raw == OFPRAW_OFPST11_QUEUE_REPLY) {
8359 const struct ofp11_queue_stats *qs11;
8361 qs11 = ofpbuf_try_pull(msg, sizeof *qs11);
8365 return ofputil_queue_stats_from_ofp11(qs, qs11);
8366 } else if (raw == OFPRAW_OFPST10_QUEUE_REPLY) {
8367 const struct ofp10_queue_stats *qs10;
8369 qs10 = ofpbuf_try_pull(msg, sizeof *qs10);
8373 return ofputil_queue_stats_from_ofp10(qs, qs10);
8379 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPST_QUEUE reply has %"PRIu32" leftover "
8380 "bytes at end", msg->size);
8381 return OFPERR_OFPBRC_BAD_LEN;
8385 ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats *oqs,
8386 struct ofp10_queue_stats *qs10)
8388 qs10->port_no = htons(ofp_to_u16(oqs->port_no));
8389 memset(qs10->pad, 0, sizeof qs10->pad);
8390 qs10->queue_id = htonl(oqs->queue_id);
8391 put_32aligned_be64(&qs10->tx_bytes, htonll(oqs->tx_bytes));
8392 put_32aligned_be64(&qs10->tx_packets, htonll(oqs->tx_packets));
8393 put_32aligned_be64(&qs10->tx_errors, htonll(oqs->tx_errors));
8397 ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats *oqs,
8398 struct ofp11_queue_stats *qs11)
8400 qs11->port_no = ofputil_port_to_ofp11(oqs->port_no);
8401 qs11->queue_id = htonl(oqs->queue_id);
8402 qs11->tx_bytes = htonll(oqs->tx_bytes);
8403 qs11->tx_packets = htonll(oqs->tx_packets);
8404 qs11->tx_errors = htonll(oqs->tx_errors);
8408 ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats *oqs,
8409 struct ofp13_queue_stats *qs13)
8411 ofputil_queue_stats_to_ofp11(oqs, &qs13->qs);
8412 if (oqs->duration_sec != UINT32_MAX) {
8413 qs13->duration_sec = htonl(oqs->duration_sec);
8414 qs13->duration_nsec = htonl(oqs->duration_nsec);
8416 qs13->duration_sec = OVS_BE32_MAX;
8417 qs13->duration_nsec = OVS_BE32_MAX;
8422 ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats *oqs,
8423 struct ofp14_queue_stats *qs14)
8425 qs14->length = htons(sizeof *qs14);
8426 memset(qs14->pad, 0, sizeof qs14->pad);
8427 ofputil_queue_stats_to_ofp13(oqs, &qs14->qs);
8431 /* Encode a queue stat for 'oqs' and append it to 'replies'. */
8433 ofputil_append_queue_stat(struct ovs_list *replies,
8434 const struct ofputil_queue_stats *oqs)
8436 switch (ofpmp_version(replies)) {
8437 case OFP13_VERSION: {
8438 struct ofp13_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
8439 ofputil_queue_stats_to_ofp13(oqs, reply);
8444 case OFP11_VERSION: {
8445 struct ofp11_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
8446 ofputil_queue_stats_to_ofp11(oqs, reply);
8450 case OFP10_VERSION: {
8451 struct ofp10_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
8452 ofputil_queue_stats_to_ofp10(oqs, reply);
8457 case OFP15_VERSION: {
8458 struct ofp14_queue_stats *reply = ofpmp_append(replies, sizeof *reply);
8459 ofputil_queue_stats_to_ofp14(oqs, reply);
8469 ofputil_decode_bundle_ctrl(const struct ofp_header *oh,
8470 struct ofputil_bundle_ctrl_msg *msg)
8474 const struct ofp14_bundle_ctrl_msg *m;
8476 ofpbuf_use_const(&b, oh, ntohs(oh->length));
8477 raw = ofpraw_pull_assert(&b);
8478 ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_CONTROL);
8481 msg->bundle_id = ntohl(m->bundle_id);
8482 msg->type = ntohs(m->type);
8483 msg->flags = ntohs(m->flags);
8489 ofputil_encode_bundle_ctrl_reply(const struct ofp_header *oh,
8490 struct ofputil_bundle_ctrl_msg *msg)
8493 struct ofp14_bundle_ctrl_msg *m;
8495 buf = ofpraw_alloc_reply(OFPRAW_OFPT14_BUNDLE_CONTROL, oh, 0);
8496 m = ofpbuf_put_zeros(buf, sizeof *m);
8498 m->bundle_id = htonl(msg->bundle_id);
8499 m->type = htons(msg->type);
8500 m->flags = htons(msg->flags);
8505 /* Return true for bundlable state change requests, false for other messages.
8508 ofputil_is_bundlable(enum ofptype type)
8511 /* Minimum required by OpenFlow 1.4. */
8512 case OFPTYPE_PORT_MOD:
8513 case OFPTYPE_FLOW_MOD:
8516 /* Nice to have later. */
8517 case OFPTYPE_FLOW_MOD_TABLE_ID:
8518 case OFPTYPE_GROUP_MOD:
8519 case OFPTYPE_TABLE_MOD:
8520 case OFPTYPE_METER_MOD:
8521 case OFPTYPE_PACKET_OUT:
8523 /* Not to be bundlable. */
8524 case OFPTYPE_ECHO_REQUEST:
8525 case OFPTYPE_FEATURES_REQUEST:
8526 case OFPTYPE_GET_CONFIG_REQUEST:
8527 case OFPTYPE_SET_CONFIG:
8528 case OFPTYPE_BARRIER_REQUEST:
8529 case OFPTYPE_ROLE_REQUEST:
8530 case OFPTYPE_ECHO_REPLY:
8531 case OFPTYPE_SET_FLOW_FORMAT:
8532 case OFPTYPE_SET_PACKET_IN_FORMAT:
8533 case OFPTYPE_SET_CONTROLLER_ID:
8534 case OFPTYPE_FLOW_AGE:
8535 case OFPTYPE_FLOW_MONITOR_CANCEL:
8536 case OFPTYPE_SET_ASYNC_CONFIG:
8537 case OFPTYPE_GET_ASYNC_REQUEST:
8538 case OFPTYPE_DESC_STATS_REQUEST:
8539 case OFPTYPE_FLOW_STATS_REQUEST:
8540 case OFPTYPE_AGGREGATE_STATS_REQUEST:
8541 case OFPTYPE_TABLE_STATS_REQUEST:
8542 case OFPTYPE_TABLE_FEATURES_STATS_REQUEST:
8543 case OFPTYPE_PORT_STATS_REQUEST:
8544 case OFPTYPE_QUEUE_STATS_REQUEST:
8545 case OFPTYPE_PORT_DESC_STATS_REQUEST:
8546 case OFPTYPE_FLOW_MONITOR_STATS_REQUEST:
8547 case OFPTYPE_METER_STATS_REQUEST:
8548 case OFPTYPE_METER_CONFIG_STATS_REQUEST:
8549 case OFPTYPE_METER_FEATURES_STATS_REQUEST:
8550 case OFPTYPE_GROUP_STATS_REQUEST:
8551 case OFPTYPE_GROUP_DESC_STATS_REQUEST:
8552 case OFPTYPE_GROUP_FEATURES_STATS_REQUEST:
8553 case OFPTYPE_QUEUE_GET_CONFIG_REQUEST:
8554 case OFPTYPE_BUNDLE_CONTROL:
8555 case OFPTYPE_BUNDLE_ADD_MESSAGE:
8558 case OFPTYPE_FEATURES_REPLY:
8559 case OFPTYPE_GET_CONFIG_REPLY:
8560 case OFPTYPE_PACKET_IN:
8561 case OFPTYPE_FLOW_REMOVED:
8562 case OFPTYPE_PORT_STATUS:
8563 case OFPTYPE_BARRIER_REPLY:
8564 case OFPTYPE_QUEUE_GET_CONFIG_REPLY:
8565 case OFPTYPE_DESC_STATS_REPLY:
8566 case OFPTYPE_FLOW_STATS_REPLY:
8567 case OFPTYPE_QUEUE_STATS_REPLY:
8568 case OFPTYPE_PORT_STATS_REPLY:
8569 case OFPTYPE_TABLE_STATS_REPLY:
8570 case OFPTYPE_AGGREGATE_STATS_REPLY:
8571 case OFPTYPE_PORT_DESC_STATS_REPLY:
8572 case OFPTYPE_ROLE_REPLY:
8573 case OFPTYPE_FLOW_MONITOR_PAUSED:
8574 case OFPTYPE_FLOW_MONITOR_RESUMED:
8575 case OFPTYPE_FLOW_MONITOR_STATS_REPLY:
8576 case OFPTYPE_GET_ASYNC_REPLY:
8577 case OFPTYPE_GROUP_STATS_REPLY:
8578 case OFPTYPE_GROUP_DESC_STATS_REPLY:
8579 case OFPTYPE_GROUP_FEATURES_STATS_REPLY:
8580 case OFPTYPE_METER_STATS_REPLY:
8581 case OFPTYPE_METER_CONFIG_STATS_REPLY:
8582 case OFPTYPE_METER_FEATURES_STATS_REPLY:
8583 case OFPTYPE_TABLE_FEATURES_STATS_REPLY:
8584 case OFPTYPE_ROLE_STATUS:
8592 ofputil_decode_bundle_add(const struct ofp_header *oh,
8593 struct ofputil_bundle_add_msg *msg)
8595 const struct ofp14_bundle_ctrl_msg *m;
8602 ofpbuf_use_const(&b, oh, ntohs(oh->length));
8603 raw = ofpraw_pull_assert(&b);
8604 ovs_assert(raw == OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE);
8606 m = ofpbuf_pull(&b, sizeof *m);
8607 msg->bundle_id = ntohl(m->bundle_id);
8608 msg->flags = ntohs(m->flags);
8611 inner_len = ntohs(msg->msg->length);
8612 if (inner_len < sizeof(struct ofp_header) || inner_len > b.size) {
8613 return OFPERR_OFPBFC_MSG_BAD_LEN;
8615 if (msg->msg->xid != oh->xid) {
8616 return OFPERR_OFPBFC_MSG_BAD_XID;
8619 /* Reject unbundlable messages. */
8620 error = ofptype_decode(&type, msg->msg);
8622 VLOG_WARN_RL(&bad_ofmsg_rl, "OFPT14_BUNDLE_ADD_MESSAGE contained "
8623 "message is unparsable (%s)", ofperr_get_name(error));
8624 return OFPERR_OFPBFC_MSG_UNSUP; /* 'error' would be confusing. */
8627 if (!ofputil_is_bundlable(type)) {
8628 return OFPERR_OFPBFC_MSG_UNSUP;
8635 ofputil_encode_bundle_add(enum ofp_version ofp_version,
8636 struct ofputil_bundle_add_msg *msg)
8638 struct ofpbuf *request;
8639 struct ofp14_bundle_ctrl_msg *m;
8641 request = ofpraw_alloc(OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE, ofp_version, 0);
8642 m = ofpbuf_put_zeros(request, sizeof *m);
8644 m->bundle_id = htonl(msg->bundle_id);
8645 m->flags = htons(msg->flags);
8646 ofpbuf_put(request, msg->msg, ntohs(msg->msg->length));