2 * Copyright (c) 2008-2017 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.
21 #include <sys/types.h>
22 #include <netinet/in.h>
23 #include <netinet/icmp6.h>
27 #include "byte-order.h"
28 #include "classifier.h"
30 #include "multipath.h"
34 #include "openflow/netronome-ext.h"
35 #include "openvswitch/dynamic-string.h"
36 #include "openvswitch/meta-flow.h"
37 #include "openvswitch/ofp-actions.h"
38 #include "openvswitch/ofp-errors.h"
39 #include "openvswitch/ofp-msgs.h"
40 #include "openvswitch/ofp-print.h"
41 #include "openvswitch/ofp-prop.h"
42 #include "openvswitch/ofp-util.h"
43 #include "openvswitch/ofpbuf.h"
44 #include "openvswitch/type-props.h"
45 #include "openvswitch/vlog.h"
46 #include "openflow/intel-ext.h"
49 #include "tun-metadata.h"
50 #include "unaligned.h"
54 VLOG_DEFINE_THIS_MODULE(ofp_util
);
56 /* Rate limit for OpenFlow message parse errors. These always indicate a bug
57 * in the peer and so there's not much point in showing a lot of them. */
58 static struct vlog_rate_limit bad_ofmsg_rl
= VLOG_RATE_LIMIT_INIT(1, 5);
60 static enum ofputil_table_vacancy
ofputil_decode_table_vacancy(
61 ovs_be32 config
, enum ofp_version
);
62 static enum ofputil_table_eviction
ofputil_decode_table_eviction(
63 ovs_be32 config
, enum ofp_version
);
64 static ovs_be32
ofputil_encode_table_config(enum ofputil_table_miss
,
65 enum ofputil_table_eviction
,
66 enum ofputil_table_vacancy
,
69 /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns
70 * an IP netmask with a 1 in each bit that must match and a 0 in each bit that
73 * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0
74 * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits,
75 * ..., 32 and higher wildcard the entire field. This is the *opposite* of the
76 * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are
79 ofputil_wcbits_to_netmask(int wcbits
)
82 return wcbits
< 32 ? htonl(~((1u << wcbits
) - 1)) : 0;
85 /* Given the IP netmask 'netmask', returns the number of bits of the IP address
86 * that it wildcards, that is, the number of 0-bits in 'netmask', a number
87 * between 0 and 32 inclusive.
89 * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will
90 * still be in the valid range but isn't otherwise meaningful. */
92 ofputil_netmask_to_wcbits(ovs_be32 netmask
)
94 return 32 - ip_count_cidr_bits(netmask
);
97 /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a
98 * flow_wildcards in 'wc' for use in struct match. It is the caller's
99 * responsibility to handle the special case where the flow match's dl_vlan is
100 * set to OFP_VLAN_NONE. */
102 ofputil_wildcard_from_ofpfw10(uint32_t ofpfw
, struct flow_wildcards
*wc
)
104 BUILD_ASSERT_DECL(FLOW_WC_SEQ
== 37);
106 /* Initialize most of wc. */
107 flow_wildcards_init_catchall(wc
);
109 if (!(ofpfw
& OFPFW10_IN_PORT
)) {
110 wc
->masks
.in_port
.ofp_port
= u16_to_ofp(UINT16_MAX
);
113 if (!(ofpfw
& OFPFW10_NW_TOS
)) {
114 wc
->masks
.nw_tos
|= IP_DSCP_MASK
;
117 if (!(ofpfw
& OFPFW10_NW_PROTO
)) {
118 wc
->masks
.nw_proto
= UINT8_MAX
;
120 wc
->masks
.nw_src
= ofputil_wcbits_to_netmask(ofpfw
121 >> OFPFW10_NW_SRC_SHIFT
);
122 wc
->masks
.nw_dst
= ofputil_wcbits_to_netmask(ofpfw
123 >> OFPFW10_NW_DST_SHIFT
);
125 if (!(ofpfw
& OFPFW10_TP_SRC
)) {
126 wc
->masks
.tp_src
= OVS_BE16_MAX
;
128 if (!(ofpfw
& OFPFW10_TP_DST
)) {
129 wc
->masks
.tp_dst
= OVS_BE16_MAX
;
132 if (!(ofpfw
& OFPFW10_DL_SRC
)) {
133 WC_MASK_FIELD(wc
, dl_src
);
135 if (!(ofpfw
& OFPFW10_DL_DST
)) {
136 WC_MASK_FIELD(wc
, dl_dst
);
138 if (!(ofpfw
& OFPFW10_DL_TYPE
)) {
139 wc
->masks
.dl_type
= OVS_BE16_MAX
;
143 if (!(ofpfw
& OFPFW10_DL_VLAN_PCP
)) {
144 wc
->masks
.vlan_tci
|= htons(VLAN_PCP_MASK
| VLAN_CFI
);
146 if (!(ofpfw
& OFPFW10_DL_VLAN
)) {
147 wc
->masks
.vlan_tci
|= htons(VLAN_VID_MASK
| VLAN_CFI
);
151 /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */
153 ofputil_match_from_ofp10_match(const struct ofp10_match
*ofmatch
,
156 uint32_t ofpfw
= ntohl(ofmatch
->wildcards
) & OFPFW10_ALL
;
158 /* Initialize match->wc. */
159 memset(&match
->flow
, 0, sizeof match
->flow
);
160 ofputil_wildcard_from_ofpfw10(ofpfw
, &match
->wc
);
162 /* Initialize most of match->flow. */
163 match
->flow
.nw_src
= ofmatch
->nw_src
;
164 match
->flow
.nw_dst
= ofmatch
->nw_dst
;
165 match
->flow
.in_port
.ofp_port
= u16_to_ofp(ntohs(ofmatch
->in_port
));
166 match
->flow
.dl_type
= ofputil_dl_type_from_openflow(ofmatch
->dl_type
);
167 match
->flow
.tp_src
= ofmatch
->tp_src
;
168 match
->flow
.tp_dst
= ofmatch
->tp_dst
;
169 match
->flow
.dl_src
= ofmatch
->dl_src
;
170 match
->flow
.dl_dst
= ofmatch
->dl_dst
;
171 match
->flow
.nw_tos
= ofmatch
->nw_tos
& IP_DSCP_MASK
;
172 match
->flow
.nw_proto
= ofmatch
->nw_proto
;
174 /* Translate VLANs. */
175 if (!(ofpfw
& OFPFW10_DL_VLAN
) &&
176 ofmatch
->dl_vlan
== htons(OFP10_VLAN_NONE
)) {
177 /* Match only packets without 802.1Q header.
179 * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct.
181 * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory,
182 * because we can't have a specific PCP without an 802.1Q header.
183 * However, older versions of OVS treated this as matching packets
184 * withut an 802.1Q header, so we do here too. */
185 match
->flow
.vlan_tci
= htons(0);
186 match
->wc
.masks
.vlan_tci
= htons(0xffff);
188 ovs_be16 vid
, pcp
, tci
;
191 vid
= ofmatch
->dl_vlan
& htons(VLAN_VID_MASK
);
192 hpcp
= (ofmatch
->dl_vlan_pcp
<< VLAN_PCP_SHIFT
) & VLAN_PCP_MASK
;
194 tci
= vid
| pcp
| htons(VLAN_CFI
);
195 match
->flow
.vlan_tci
= tci
& match
->wc
.masks
.vlan_tci
;
199 match_zero_wildcarded_fields(match
);
202 /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */
204 ofputil_match_to_ofp10_match(const struct match
*match
,
205 struct ofp10_match
*ofmatch
)
207 const struct flow_wildcards
*wc
= &match
->wc
;
210 /* Figure out most OpenFlow wildcards. */
212 if (!wc
->masks
.in_port
.ofp_port
) {
213 ofpfw
|= OFPFW10_IN_PORT
;
215 if (!wc
->masks
.dl_type
) {
216 ofpfw
|= OFPFW10_DL_TYPE
;
218 if (!wc
->masks
.nw_proto
) {
219 ofpfw
|= OFPFW10_NW_PROTO
;
221 ofpfw
|= (ofputil_netmask_to_wcbits(wc
->masks
.nw_src
)
222 << OFPFW10_NW_SRC_SHIFT
);
223 ofpfw
|= (ofputil_netmask_to_wcbits(wc
->masks
.nw_dst
)
224 << OFPFW10_NW_DST_SHIFT
);
225 if (!(wc
->masks
.nw_tos
& IP_DSCP_MASK
)) {
226 ofpfw
|= OFPFW10_NW_TOS
;
228 if (!wc
->masks
.tp_src
) {
229 ofpfw
|= OFPFW10_TP_SRC
;
231 if (!wc
->masks
.tp_dst
) {
232 ofpfw
|= OFPFW10_TP_DST
;
234 if (eth_addr_is_zero(wc
->masks
.dl_src
)) {
235 ofpfw
|= OFPFW10_DL_SRC
;
237 if (eth_addr_is_zero(wc
->masks
.dl_dst
)) {
238 ofpfw
|= OFPFW10_DL_DST
;
241 /* Translate VLANs. */
242 ofmatch
->dl_vlan
= htons(0);
243 ofmatch
->dl_vlan_pcp
= 0;
244 if (match
->wc
.masks
.vlan_tci
== htons(0)) {
245 ofpfw
|= OFPFW10_DL_VLAN
| OFPFW10_DL_VLAN_PCP
;
246 } else if (match
->wc
.masks
.vlan_tci
& htons(VLAN_CFI
)
247 && !(match
->flow
.vlan_tci
& htons(VLAN_CFI
))) {
248 ofmatch
->dl_vlan
= htons(OFP10_VLAN_NONE
);
250 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_VID_MASK
))) {
251 ofpfw
|= OFPFW10_DL_VLAN
;
253 ofmatch
->dl_vlan
= htons(vlan_tci_to_vid(match
->flow
.vlan_tci
));
256 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_PCP_MASK
))) {
257 ofpfw
|= OFPFW10_DL_VLAN_PCP
;
259 ofmatch
->dl_vlan_pcp
= vlan_tci_to_pcp(match
->flow
.vlan_tci
);
263 /* Compose most of the match structure. */
264 ofmatch
->wildcards
= htonl(ofpfw
);
265 ofmatch
->in_port
= htons(ofp_to_u16(match
->flow
.in_port
.ofp_port
));
266 ofmatch
->dl_src
= match
->flow
.dl_src
;
267 ofmatch
->dl_dst
= match
->flow
.dl_dst
;
268 ofmatch
->dl_type
= ofputil_dl_type_to_openflow(match
->flow
.dl_type
);
269 ofmatch
->nw_src
= match
->flow
.nw_src
;
270 ofmatch
->nw_dst
= match
->flow
.nw_dst
;
271 ofmatch
->nw_tos
= match
->flow
.nw_tos
& IP_DSCP_MASK
;
272 ofmatch
->nw_proto
= match
->flow
.nw_proto
;
273 ofmatch
->tp_src
= match
->flow
.tp_src
;
274 ofmatch
->tp_dst
= match
->flow
.tp_dst
;
275 memset(ofmatch
->pad1
, '\0', sizeof ofmatch
->pad1
);
276 memset(ofmatch
->pad2
, '\0', sizeof ofmatch
->pad2
);
280 ofputil_pull_ofp11_match(struct ofpbuf
*buf
, const struct tun_table
*tun_table
,
281 const struct vl_mff_map
*vl_mff_map
,
282 struct match
*match
, uint16_t *padded_match_len
)
284 struct ofp11_match_header
*omh
= buf
->data
;
287 if (buf
->size
< sizeof *omh
) {
288 return OFPERR_OFPBMC_BAD_LEN
;
291 match_len
= ntohs(omh
->length
);
293 switch (ntohs(omh
->type
)) {
294 case OFPMT_STANDARD
: {
295 struct ofp11_match
*om
;
297 if (match_len
!= sizeof *om
|| buf
->size
< sizeof *om
) {
298 return OFPERR_OFPBMC_BAD_LEN
;
300 om
= ofpbuf_pull(buf
, sizeof *om
);
301 if (padded_match_len
) {
302 *padded_match_len
= match_len
;
304 return ofputil_match_from_ofp11_match(om
, match
);
308 if (padded_match_len
) {
309 *padded_match_len
= ROUND_UP(match_len
, 8);
311 return oxm_pull_match(buf
, tun_table
, vl_mff_map
, match
);
314 return OFPERR_OFPBMC_BAD_TYPE
;
318 /* Converts the ofp11_match in 'ofmatch' into a struct match in 'match'.
319 * Returns 0 if successful, otherwise an OFPERR_* value. */
321 ofputil_match_from_ofp11_match(const struct ofp11_match
*ofmatch
,
324 uint16_t wc
= ntohl(ofmatch
->wildcards
);
325 bool ipv4
, arp
, rarp
;
327 match_init_catchall(match
);
329 if (!(wc
& OFPFW11_IN_PORT
)) {
333 error
= ofputil_port_from_ofp11(ofmatch
->in_port
, &ofp_port
);
335 return OFPERR_OFPBMC_BAD_VALUE
;
337 match_set_in_port(match
, ofp_port
);
340 match_set_dl_src_masked(match
, ofmatch
->dl_src
,
341 eth_addr_invert(ofmatch
->dl_src_mask
));
342 match_set_dl_dst_masked(match
, ofmatch
->dl_dst
,
343 eth_addr_invert(ofmatch
->dl_dst_mask
));
345 if (!(wc
& OFPFW11_DL_VLAN
)) {
346 if (ofmatch
->dl_vlan
== htons(OFPVID11_NONE
)) {
347 /* Match only packets without a VLAN tag. */
348 match
->flow
.vlan_tci
= htons(0);
349 match
->wc
.masks
.vlan_tci
= OVS_BE16_MAX
;
351 if (ofmatch
->dl_vlan
== htons(OFPVID11_ANY
)) {
352 /* Match any packet with a VLAN tag regardless of VID. */
353 match
->flow
.vlan_tci
= htons(VLAN_CFI
);
354 match
->wc
.masks
.vlan_tci
= htons(VLAN_CFI
);
355 } else if (ntohs(ofmatch
->dl_vlan
) < 4096) {
356 /* Match only packets with the specified VLAN VID. */
357 match
->flow
.vlan_tci
= htons(VLAN_CFI
) | ofmatch
->dl_vlan
;
358 match
->wc
.masks
.vlan_tci
= htons(VLAN_CFI
| VLAN_VID_MASK
);
361 return OFPERR_OFPBMC_BAD_VALUE
;
364 if (!(wc
& OFPFW11_DL_VLAN_PCP
)) {
365 if (ofmatch
->dl_vlan_pcp
<= 7) {
366 match
->flow
.vlan_tci
|= htons(ofmatch
->dl_vlan_pcp
368 match
->wc
.masks
.vlan_tci
|= htons(VLAN_PCP_MASK
);
371 return OFPERR_OFPBMC_BAD_VALUE
;
377 if (!(wc
& OFPFW11_DL_TYPE
)) {
378 match_set_dl_type(match
,
379 ofputil_dl_type_from_openflow(ofmatch
->dl_type
));
382 ipv4
= match
->flow
.dl_type
== htons(ETH_TYPE_IP
);
383 arp
= match
->flow
.dl_type
== htons(ETH_TYPE_ARP
);
384 rarp
= match
->flow
.dl_type
== htons(ETH_TYPE_RARP
);
386 if (ipv4
&& !(wc
& OFPFW11_NW_TOS
)) {
387 if (ofmatch
->nw_tos
& ~IP_DSCP_MASK
) {
389 return OFPERR_OFPBMC_BAD_VALUE
;
392 match_set_nw_dscp(match
, ofmatch
->nw_tos
);
395 if (ipv4
|| arp
|| rarp
) {
396 if (!(wc
& OFPFW11_NW_PROTO
)) {
397 match_set_nw_proto(match
, ofmatch
->nw_proto
);
399 match_set_nw_src_masked(match
, ofmatch
->nw_src
, ~ofmatch
->nw_src_mask
);
400 match_set_nw_dst_masked(match
, ofmatch
->nw_dst
, ~ofmatch
->nw_dst_mask
);
403 #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST)
404 if (ipv4
&& (wc
& OFPFW11_TP_ALL
) != OFPFW11_TP_ALL
) {
405 switch (match
->flow
.nw_proto
) {
407 /* "A.2.3 Flow Match Structures" in OF1.1 says:
409 * The tp_src and tp_dst fields will be ignored unless the
410 * network protocol specified is as TCP, UDP or SCTP.
412 * but I'm pretty sure we should support ICMP too, otherwise
413 * that's a regression from OF1.0. */
414 if (!(wc
& OFPFW11_TP_SRC
)) {
415 uint16_t icmp_type
= ntohs(ofmatch
->tp_src
);
416 if (icmp_type
< 0x100) {
417 match_set_icmp_type(match
, icmp_type
);
419 return OFPERR_OFPBMC_BAD_FIELD
;
422 if (!(wc
& OFPFW11_TP_DST
)) {
423 uint16_t icmp_code
= ntohs(ofmatch
->tp_dst
);
424 if (icmp_code
< 0x100) {
425 match_set_icmp_code(match
, icmp_code
);
427 return OFPERR_OFPBMC_BAD_FIELD
;
435 if (!(wc
& (OFPFW11_TP_SRC
))) {
436 match_set_tp_src(match
, ofmatch
->tp_src
);
438 if (!(wc
& (OFPFW11_TP_DST
))) {
439 match_set_tp_dst(match
, ofmatch
->tp_dst
);
444 /* OF1.1 says explicitly to ignore this. */
449 if (eth_type_mpls(match
->flow
.dl_type
)) {
450 if (!(wc
& OFPFW11_MPLS_LABEL
)) {
451 match_set_mpls_label(match
, 0, ofmatch
->mpls_label
);
453 if (!(wc
& OFPFW11_MPLS_TC
)) {
454 match_set_mpls_tc(match
, 0, ofmatch
->mpls_tc
);
458 match_set_metadata_masked(match
, ofmatch
->metadata
,
459 ~ofmatch
->metadata_mask
);
464 /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */
466 ofputil_match_to_ofp11_match(const struct match
*match
,
467 struct ofp11_match
*ofmatch
)
471 memset(ofmatch
, 0, sizeof *ofmatch
);
472 ofmatch
->omh
.type
= htons(OFPMT_STANDARD
);
473 ofmatch
->omh
.length
= htons(OFPMT11_STANDARD_LENGTH
);
475 if (!match
->wc
.masks
.in_port
.ofp_port
) {
476 wc
|= OFPFW11_IN_PORT
;
478 ofmatch
->in_port
= ofputil_port_to_ofp11(match
->flow
.in_port
.ofp_port
);
481 ofmatch
->dl_src
= match
->flow
.dl_src
;
482 ofmatch
->dl_src_mask
= eth_addr_invert(match
->wc
.masks
.dl_src
);
483 ofmatch
->dl_dst
= match
->flow
.dl_dst
;
484 ofmatch
->dl_dst_mask
= eth_addr_invert(match
->wc
.masks
.dl_dst
);
486 if (match
->wc
.masks
.vlan_tci
== htons(0)) {
487 wc
|= OFPFW11_DL_VLAN
| OFPFW11_DL_VLAN_PCP
;
488 } else if (match
->wc
.masks
.vlan_tci
& htons(VLAN_CFI
)
489 && !(match
->flow
.vlan_tci
& htons(VLAN_CFI
))) {
490 ofmatch
->dl_vlan
= htons(OFPVID11_NONE
);
491 wc
|= OFPFW11_DL_VLAN_PCP
;
493 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_VID_MASK
))) {
494 ofmatch
->dl_vlan
= htons(OFPVID11_ANY
);
496 ofmatch
->dl_vlan
= htons(vlan_tci_to_vid(match
->flow
.vlan_tci
));
499 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_PCP_MASK
))) {
500 wc
|= OFPFW11_DL_VLAN_PCP
;
502 ofmatch
->dl_vlan_pcp
= vlan_tci_to_pcp(match
->flow
.vlan_tci
);
506 if (!match
->wc
.masks
.dl_type
) {
507 wc
|= OFPFW11_DL_TYPE
;
509 ofmatch
->dl_type
= ofputil_dl_type_to_openflow(match
->flow
.dl_type
);
512 if (!(match
->wc
.masks
.nw_tos
& IP_DSCP_MASK
)) {
513 wc
|= OFPFW11_NW_TOS
;
515 ofmatch
->nw_tos
= match
->flow
.nw_tos
& IP_DSCP_MASK
;
518 if (!match
->wc
.masks
.nw_proto
) {
519 wc
|= OFPFW11_NW_PROTO
;
521 ofmatch
->nw_proto
= match
->flow
.nw_proto
;
524 ofmatch
->nw_src
= match
->flow
.nw_src
;
525 ofmatch
->nw_src_mask
= ~match
->wc
.masks
.nw_src
;
526 ofmatch
->nw_dst
= match
->flow
.nw_dst
;
527 ofmatch
->nw_dst_mask
= ~match
->wc
.masks
.nw_dst
;
529 if (!match
->wc
.masks
.tp_src
) {
530 wc
|= OFPFW11_TP_SRC
;
532 ofmatch
->tp_src
= match
->flow
.tp_src
;
535 if (!match
->wc
.masks
.tp_dst
) {
536 wc
|= OFPFW11_TP_DST
;
538 ofmatch
->tp_dst
= match
->flow
.tp_dst
;
541 if (!(match
->wc
.masks
.mpls_lse
[0] & htonl(MPLS_LABEL_MASK
))) {
542 wc
|= OFPFW11_MPLS_LABEL
;
544 ofmatch
->mpls_label
= htonl(mpls_lse_to_label(
545 match
->flow
.mpls_lse
[0]));
548 if (!(match
->wc
.masks
.mpls_lse
[0] & htonl(MPLS_TC_MASK
))) {
549 wc
|= OFPFW11_MPLS_TC
;
551 ofmatch
->mpls_tc
= mpls_lse_to_tc(match
->flow
.mpls_lse
[0]);
554 ofmatch
->metadata
= match
->flow
.metadata
;
555 ofmatch
->metadata_mask
= ~match
->wc
.masks
.metadata
;
557 ofmatch
->wildcards
= htonl(wc
);
560 /* Returns the "typical" length of a match for 'protocol', for use in
561 * estimating space to preallocate. */
563 ofputil_match_typical_len(enum ofputil_protocol protocol
)
566 case OFPUTIL_P_OF10_STD
:
567 case OFPUTIL_P_OF10_STD_TID
:
568 return sizeof(struct ofp10_match
);
570 case OFPUTIL_P_OF10_NXM
:
571 case OFPUTIL_P_OF10_NXM_TID
:
572 return NXM_TYPICAL_LEN
;
574 case OFPUTIL_P_OF11_STD
:
575 return sizeof(struct ofp11_match
);
577 case OFPUTIL_P_OF12_OXM
:
578 case OFPUTIL_P_OF13_OXM
:
579 case OFPUTIL_P_OF14_OXM
:
580 case OFPUTIL_P_OF15_OXM
:
581 case OFPUTIL_P_OF16_OXM
:
582 return NXM_TYPICAL_LEN
;
589 /* Appends to 'b' an struct ofp11_match_header followed by a match that
590 * expresses 'match' properly for 'protocol', plus enough zero bytes to pad the
591 * data appended out to a multiple of 8. 'protocol' must be one that is usable
592 * in OpenFlow 1.1 or later.
594 * This function can cause 'b''s data to be reallocated.
596 * Returns the number of bytes appended to 'b', excluding the padding. Never
599 ofputil_put_ofp11_match(struct ofpbuf
*b
, const struct match
*match
,
600 enum ofputil_protocol protocol
)
603 case OFPUTIL_P_OF10_STD
:
604 case OFPUTIL_P_OF10_STD_TID
:
605 case OFPUTIL_P_OF10_NXM
:
606 case OFPUTIL_P_OF10_NXM_TID
:
609 case OFPUTIL_P_OF11_STD
: {
610 struct ofp11_match
*om
;
612 /* Make sure that no padding is needed. */
613 BUILD_ASSERT_DECL(sizeof *om
% 8 == 0);
615 om
= ofpbuf_put_uninit(b
, sizeof *om
);
616 ofputil_match_to_ofp11_match(match
, om
);
620 case OFPUTIL_P_OF12_OXM
:
621 case OFPUTIL_P_OF13_OXM
:
622 case OFPUTIL_P_OF14_OXM
:
623 case OFPUTIL_P_OF15_OXM
:
624 case OFPUTIL_P_OF16_OXM
:
625 return oxm_put_match(b
, match
,
626 ofputil_protocol_to_ofp_version(protocol
));
632 /* Given a 'dl_type' value in the format used in struct flow, returns the
633 * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match
636 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type
)
638 return (flow_dl_type
== htons(FLOW_DL_TYPE_NONE
)
639 ? htons(OFP_DL_TYPE_NOT_ETH_TYPE
)
643 /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match
644 * structure, returns the corresponding 'dl_type' value for use in struct
647 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type
)
649 return (ofp_dl_type
== htons(OFP_DL_TYPE_NOT_ETH_TYPE
)
650 ? htons(FLOW_DL_TYPE_NONE
)
656 struct proto_abbrev
{
657 enum ofputil_protocol protocol
;
661 /* Most users really don't care about some of the differences between
662 * protocols. These abbreviations help with that. */
663 static const struct proto_abbrev proto_abbrevs
[] = {
664 { OFPUTIL_P_ANY
, "any" },
665 { OFPUTIL_P_OF10_STD_ANY
, "OpenFlow10" },
666 { OFPUTIL_P_OF10_NXM_ANY
, "NXM" },
667 { OFPUTIL_P_ANY_OXM
, "OXM" },
669 #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs)
671 enum ofputil_protocol ofputil_flow_dump_protocols
[] = {
681 size_t ofputil_n_flow_dump_protocols
= ARRAY_SIZE(ofputil_flow_dump_protocols
);
683 /* Returns the set of ofputil_protocols that are supported with the given
684 * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version
685 * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0
686 * if 'version' is not supported or outside the valid range. */
687 enum ofputil_protocol
688 ofputil_protocols_from_ofp_version(enum ofp_version version
)
692 return OFPUTIL_P_OF10_STD_ANY
| OFPUTIL_P_OF10_NXM_ANY
;
694 return OFPUTIL_P_OF11_STD
;
696 return OFPUTIL_P_OF12_OXM
;
698 return OFPUTIL_P_OF13_OXM
;
700 return OFPUTIL_P_OF14_OXM
;
702 return OFPUTIL_P_OF15_OXM
;
704 return OFPUTIL_P_OF16_OXM
;
710 /* Returns the ofputil_protocol that is initially in effect on an OpenFlow
711 * connection that has negotiated the given 'version'. 'version' should
712 * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow
713 * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or
714 * outside the valid range. */
715 enum ofputil_protocol
716 ofputil_protocol_from_ofp_version(enum ofp_version version
)
718 return rightmost_1bit(ofputil_protocols_from_ofp_version(version
));
721 /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION,
722 * etc.) that corresponds to 'protocol'. */
724 ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol
)
727 case OFPUTIL_P_OF10_STD
:
728 case OFPUTIL_P_OF10_STD_TID
:
729 case OFPUTIL_P_OF10_NXM
:
730 case OFPUTIL_P_OF10_NXM_TID
:
731 return OFP10_VERSION
;
732 case OFPUTIL_P_OF11_STD
:
733 return OFP11_VERSION
;
734 case OFPUTIL_P_OF12_OXM
:
735 return OFP12_VERSION
;
736 case OFPUTIL_P_OF13_OXM
:
737 return OFP13_VERSION
;
738 case OFPUTIL_P_OF14_OXM
:
739 return OFP14_VERSION
;
740 case OFPUTIL_P_OF15_OXM
:
741 return OFP15_VERSION
;
742 case OFPUTIL_P_OF16_OXM
:
743 return OFP16_VERSION
;
749 /* Returns a bitmap of OpenFlow versions that are supported by at
750 * least one of the 'protocols'. */
752 ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols
)
756 for (; protocols
; protocols
= zero_rightmost_1bit(protocols
)) {
757 enum ofputil_protocol protocol
= rightmost_1bit(protocols
);
759 bitmap
|= 1u << ofputil_protocol_to_ofp_version(protocol
);
765 /* Returns the set of protocols that are supported on top of the
766 * OpenFlow versions included in 'bitmap'. */
767 enum ofputil_protocol
768 ofputil_protocols_from_version_bitmap(uint32_t bitmap
)
770 enum ofputil_protocol protocols
= 0;
772 for (; bitmap
; bitmap
= zero_rightmost_1bit(bitmap
)) {
773 enum ofp_version version
= rightmost_1bit_idx(bitmap
);
775 protocols
|= ofputil_protocols_from_ofp_version(version
);
781 /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false
784 ofputil_protocol_is_valid(enum ofputil_protocol protocol
)
786 return protocol
& OFPUTIL_P_ANY
&& is_pow2(protocol
);
789 /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id
790 * extension turned on or off if 'enable' is true or false, respectively.
792 * This extension is only useful for protocols whose "standard" version does
793 * not allow specific tables to be modified. In particular, this is true of
794 * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always
795 * specifies a table ID and so there is no need for such an extension. When
796 * 'protocol' is such a protocol that doesn't need a flow_mod_table_id
797 * extension, this function just returns its 'protocol' argument unchanged
798 * regardless of the value of 'enable'. */
799 enum ofputil_protocol
800 ofputil_protocol_set_tid(enum ofputil_protocol protocol
, bool enable
)
803 case OFPUTIL_P_OF10_STD
:
804 case OFPUTIL_P_OF10_STD_TID
:
805 return enable
? OFPUTIL_P_OF10_STD_TID
: OFPUTIL_P_OF10_STD
;
807 case OFPUTIL_P_OF10_NXM
:
808 case OFPUTIL_P_OF10_NXM_TID
:
809 return enable
? OFPUTIL_P_OF10_NXM_TID
: OFPUTIL_P_OF10_NXM
;
811 case OFPUTIL_P_OF11_STD
:
812 return OFPUTIL_P_OF11_STD
;
814 case OFPUTIL_P_OF12_OXM
:
815 return OFPUTIL_P_OF12_OXM
;
817 case OFPUTIL_P_OF13_OXM
:
818 return OFPUTIL_P_OF13_OXM
;
820 case OFPUTIL_P_OF14_OXM
:
821 return OFPUTIL_P_OF14_OXM
;
823 case OFPUTIL_P_OF15_OXM
:
824 return OFPUTIL_P_OF15_OXM
;
826 case OFPUTIL_P_OF16_OXM
:
827 return OFPUTIL_P_OF16_OXM
;
834 /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes
835 * some extension to a standard protocol version, the return value is the
836 * standard version of that protocol without any extension. If 'protocol' is a
837 * standard protocol version, returns 'protocol' unchanged. */
838 enum ofputil_protocol
839 ofputil_protocol_to_base(enum ofputil_protocol protocol
)
841 return ofputil_protocol_set_tid(protocol
, false);
844 /* Returns 'new_base' with any extensions taken from 'cur'. */
845 enum ofputil_protocol
846 ofputil_protocol_set_base(enum ofputil_protocol cur
,
847 enum ofputil_protocol new_base
)
849 bool tid
= (cur
& OFPUTIL_P_TID
) != 0;
852 case OFPUTIL_P_OF10_STD
:
853 case OFPUTIL_P_OF10_STD_TID
:
854 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD
, tid
);
856 case OFPUTIL_P_OF10_NXM
:
857 case OFPUTIL_P_OF10_NXM_TID
:
858 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM
, tid
);
860 case OFPUTIL_P_OF11_STD
:
861 return ofputil_protocol_set_tid(OFPUTIL_P_OF11_STD
, tid
);
863 case OFPUTIL_P_OF12_OXM
:
864 return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM
, tid
);
866 case OFPUTIL_P_OF13_OXM
:
867 return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM
, tid
);
869 case OFPUTIL_P_OF14_OXM
:
870 return ofputil_protocol_set_tid(OFPUTIL_P_OF14_OXM
, tid
);
872 case OFPUTIL_P_OF15_OXM
:
873 return ofputil_protocol_set_tid(OFPUTIL_P_OF15_OXM
, tid
);
875 case OFPUTIL_P_OF16_OXM
:
876 return ofputil_protocol_set_tid(OFPUTIL_P_OF16_OXM
, tid
);
883 /* Returns a string form of 'protocol', if a simple form exists (that is, if
884 * 'protocol' is either a single protocol or it is a combination of protocols
885 * that have a single abbreviation). Otherwise, returns NULL. */
887 ofputil_protocol_to_string(enum ofputil_protocol protocol
)
889 const struct proto_abbrev
*p
;
891 /* Use a "switch" statement for single-bit names so that we get a compiler
892 * warning if we forget any. */
894 case OFPUTIL_P_OF10_NXM
:
895 return "NXM-table_id";
897 case OFPUTIL_P_OF10_NXM_TID
:
898 return "NXM+table_id";
900 case OFPUTIL_P_OF10_STD
:
901 return "OpenFlow10-table_id";
903 case OFPUTIL_P_OF10_STD_TID
:
904 return "OpenFlow10+table_id";
906 case OFPUTIL_P_OF11_STD
:
909 case OFPUTIL_P_OF12_OXM
:
910 return "OXM-OpenFlow12";
912 case OFPUTIL_P_OF13_OXM
:
913 return "OXM-OpenFlow13";
915 case OFPUTIL_P_OF14_OXM
:
916 return "OXM-OpenFlow14";
918 case OFPUTIL_P_OF15_OXM
:
919 return "OXM-OpenFlow15";
921 case OFPUTIL_P_OF16_OXM
:
922 return "OXM-OpenFlow16";
925 /* Check abbreviations. */
926 for (p
= proto_abbrevs
; p
< &proto_abbrevs
[N_PROTO_ABBREVS
]; p
++) {
927 if (protocol
== p
->protocol
) {
935 /* Returns a string that represents 'protocols'. The return value might be a
936 * comma-separated list if 'protocols' doesn't have a simple name. The return
937 * value is "none" if 'protocols' is 0.
939 * The caller must free the returned string (with free()). */
941 ofputil_protocols_to_string(enum ofputil_protocol protocols
)
945 ovs_assert(!(protocols
& ~OFPUTIL_P_ANY
));
946 if (protocols
== 0) {
947 return xstrdup("none");
952 const struct proto_abbrev
*p
;
956 ds_put_char(&s
, ',');
959 for (p
= proto_abbrevs
; p
< &proto_abbrevs
[N_PROTO_ABBREVS
]; p
++) {
960 if ((protocols
& p
->protocol
) == p
->protocol
) {
961 ds_put_cstr(&s
, p
->name
);
962 protocols
&= ~p
->protocol
;
967 for (i
= 0; i
< CHAR_BIT
* sizeof(enum ofputil_protocol
); i
++) {
968 enum ofputil_protocol bit
= 1u << i
;
970 if (protocols
& bit
) {
971 ds_put_cstr(&s
, ofputil_protocol_to_string(bit
));
980 return ds_steal_cstr(&s
);
983 static enum ofputil_protocol
984 ofputil_protocol_from_string__(const char *s
, size_t n
)
986 const struct proto_abbrev
*p
;
989 for (i
= 0; i
< CHAR_BIT
* sizeof(enum ofputil_protocol
); i
++) {
990 enum ofputil_protocol bit
= 1u << i
;
991 const char *name
= ofputil_protocol_to_string(bit
);
993 if (name
&& n
== strlen(name
) && !strncasecmp(s
, name
, n
)) {
998 for (p
= proto_abbrevs
; p
< &proto_abbrevs
[N_PROTO_ABBREVS
]; p
++) {
999 if (n
== strlen(p
->name
) && !strncasecmp(s
, p
->name
, n
)) {
1007 /* Returns the nonempty set of protocols represented by 's', which can be a
1008 * single protocol name or abbreviation or a comma-separated list of them.
1010 * Aborts the program with an error message if 's' is invalid. */
1011 enum ofputil_protocol
1012 ofputil_protocols_from_string(const char *s
)
1014 const char *orig_s
= s
;
1015 enum ofputil_protocol protocols
;
1019 enum ofputil_protocol p
;
1022 n
= strcspn(s
, ",");
1028 p
= ofputil_protocol_from_string__(s
, n
);
1030 ovs_fatal(0, "%.*s: unknown flow protocol", (int) n
, s
);
1038 ovs_fatal(0, "%s: no flow protocol specified", orig_s
);
1044 ofputil_version_from_string(const char *s
)
1046 if (!strcasecmp(s
, "OpenFlow10")) {
1047 return OFP10_VERSION
;
1049 if (!strcasecmp(s
, "OpenFlow11")) {
1050 return OFP11_VERSION
;
1052 if (!strcasecmp(s
, "OpenFlow12")) {
1053 return OFP12_VERSION
;
1055 if (!strcasecmp(s
, "OpenFlow13")) {
1056 return OFP13_VERSION
;
1058 if (!strcasecmp(s
, "OpenFlow14")) {
1059 return OFP14_VERSION
;
1061 if (!strcasecmp(s
, "OpenFlow15")) {
1062 return OFP15_VERSION
;
1064 if (!strcasecmp(s
, "OpenFlow16")) {
1065 return OFP16_VERSION
;
1071 is_delimiter(unsigned char c
)
1073 return isspace(c
) || c
== ',';
1077 ofputil_versions_from_string(const char *s
)
1080 uint32_t bitmap
= 0;
1087 if (is_delimiter(s
[i
])) {
1092 while (s
[i
+ j
] && !is_delimiter(s
[i
+ j
])) {
1095 key
= xmemdup0(s
+ i
, j
);
1096 version
= ofputil_version_from_string(key
);
1098 VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key
);
1101 bitmap
|= 1u << version
;
1109 ofputil_versions_from_strings(char ** const s
, size_t count
)
1111 uint32_t bitmap
= 0;
1114 int version
= ofputil_version_from_string(s
[count
]);
1116 VLOG_WARN("Unknown OpenFlow version: \"%s\"", s
[count
]);
1118 bitmap
|= 1u << version
;
1126 ofputil_version_to_string(enum ofp_version ofp_version
)
1128 switch (ofp_version
) {
1130 return "OpenFlow10";
1132 return "OpenFlow11";
1134 return "OpenFlow12";
1136 return "OpenFlow13";
1138 return "OpenFlow14";
1140 return "OpenFlow15";
1142 return "OpenFlow16";
1149 ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format
)
1151 switch (packet_in_format
) {
1152 case NXPIF_STANDARD
:
1153 case NXPIF_NXT_PACKET_IN
:
1154 case NXPIF_NXT_PACKET_IN2
:
1162 ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format
)
1164 switch (packet_in_format
) {
1165 case NXPIF_STANDARD
:
1167 case NXPIF_NXT_PACKET_IN
:
1168 return "nxt_packet_in";
1169 case NXPIF_NXT_PACKET_IN2
:
1170 return "nxt_packet_in2";
1177 ofputil_packet_in_format_from_string(const char *s
)
1179 return (!strcmp(s
, "standard") || !strcmp(s
, "openflow10")
1181 : !strcmp(s
, "nxt_packet_in") || !strcmp(s
, "nxm")
1182 ? NXPIF_NXT_PACKET_IN
1183 : !strcmp(s
, "nxt_packet_in2")
1184 ? NXPIF_NXT_PACKET_IN2
1189 ofputil_format_version(struct ds
*msg
, enum ofp_version version
)
1191 ds_put_format(msg
, "0x%02x", version
);
1195 ofputil_format_version_name(struct ds
*msg
, enum ofp_version version
)
1197 ds_put_cstr(msg
, ofputil_version_to_string(version
));
1201 ofputil_format_version_bitmap__(struct ds
*msg
, uint32_t bitmap
,
1202 void (*format_version
)(struct ds
*msg
,
1206 format_version(msg
, raw_ctz(bitmap
));
1207 bitmap
= zero_rightmost_1bit(bitmap
);
1209 ds_put_cstr(msg
, ", ");
1215 ofputil_format_version_bitmap(struct ds
*msg
, uint32_t bitmap
)
1217 ofputil_format_version_bitmap__(msg
, bitmap
, ofputil_format_version
);
1221 ofputil_format_version_bitmap_names(struct ds
*msg
, uint32_t bitmap
)
1223 ofputil_format_version_bitmap__(msg
, bitmap
, ofputil_format_version_name
);
1227 ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header
*oheh
,
1228 uint32_t *allowed_versionsp
)
1230 uint16_t bitmap_len
= ntohs(oheh
->length
) - sizeof *oheh
;
1231 const ovs_be32
*bitmap
= ALIGNED_CAST(const ovs_be32
*, oheh
+ 1);
1232 uint32_t allowed_versions
;
1234 if (!bitmap_len
|| bitmap_len
% sizeof *bitmap
) {
1238 /* Only use the first 32-bit element of the bitmap as that is all the
1239 * current implementation supports. Subsequent elements are ignored which
1240 * should have no effect on session negotiation until Open vSwitch supports
1241 * wire-protocol versions greater than 31.
1243 allowed_versions
= ntohl(bitmap
[0]);
1245 if (allowed_versions
& 1) {
1246 /* There's no OpenFlow version 0. */
1247 VLOG_WARN_RL(&bad_ofmsg_rl
, "peer claims to support invalid OpenFlow "
1249 allowed_versions
&= ~1u;
1252 if (!allowed_versions
) {
1253 VLOG_WARN_RL(&bad_ofmsg_rl
, "peer does not support any OpenFlow "
1254 "version (between 0x01 and 0x1f)");
1258 *allowed_versionsp
= allowed_versions
;
1263 version_bitmap_from_version(uint8_t ofp_version
)
1265 return ((ofp_version
< 32 ? 1u << ofp_version
: 0) - 1) << 1;
1268 /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions'
1269 * the set of OpenFlow versions for which 'oh' announces support.
1271 * Because of how OpenFlow defines OFPT_HELLO messages, this function is always
1272 * successful, and thus '*allowed_versions' is always initialized. However, it
1273 * returns false if 'oh' contains some data that could not be fully understood,
1274 * true if 'oh' was completely parsed. */
1276 ofputil_decode_hello(const struct ofp_header
*oh
, uint32_t *allowed_versions
)
1278 struct ofpbuf msg
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
1279 ofpbuf_pull(&msg
, sizeof *oh
);
1281 *allowed_versions
= version_bitmap_from_version(oh
->version
);
1285 const struct ofp_hello_elem_header
*oheh
;
1288 if (msg
.size
< sizeof *oheh
) {
1293 len
= ntohs(oheh
->length
);
1294 if (len
< sizeof *oheh
|| !ofpbuf_try_pull(&msg
, ROUND_UP(len
, 8))) {
1298 if (oheh
->type
!= htons(OFPHET_VERSIONBITMAP
)
1299 || !ofputil_decode_hello_bitmap(oheh
, allowed_versions
)) {
1307 /* Returns true if 'allowed_versions' needs to be accompanied by a version
1308 * bitmap to be correctly expressed in an OFPT_HELLO message. */
1310 should_send_version_bitmap(uint32_t allowed_versions
)
1312 return !is_pow2((allowed_versions
>> 1) + 1);
1315 /* Create an OFPT_HELLO message that expresses support for the OpenFlow
1316 * versions in the 'allowed_versions' bitmaps and returns the message. */
1318 ofputil_encode_hello(uint32_t allowed_versions
)
1320 enum ofp_version ofp_version
;
1323 ofp_version
= leftmost_1bit_idx(allowed_versions
);
1324 msg
= ofpraw_alloc(OFPRAW_OFPT_HELLO
, ofp_version
, 0);
1326 if (should_send_version_bitmap(allowed_versions
)) {
1327 struct ofp_hello_elem_header
*oheh
;
1330 map_len
= sizeof allowed_versions
;
1331 oheh
= ofpbuf_put_zeros(msg
, ROUND_UP(map_len
+ sizeof *oheh
, 8));
1332 oheh
->type
= htons(OFPHET_VERSIONBITMAP
);
1333 oheh
->length
= htons(map_len
+ sizeof *oheh
);
1334 *ALIGNED_CAST(ovs_be32
*, oheh
+ 1) = htonl(allowed_versions
);
1336 ofpmsg_update_length(msg
);
1342 /* Returns an OpenFlow message that, sent on an OpenFlow connection whose
1343 * protocol is 'current', at least partly transitions the protocol to 'want'.
1344 * Stores in '*next' the protocol that will be in effect on the OpenFlow
1345 * connection if the switch processes the returned message correctly. (If
1346 * '*next != want' then the caller will have to iterate.)
1348 * If 'current == want', or if it is not possible to transition from 'current'
1349 * to 'want' (because, for example, 'current' and 'want' use different OpenFlow
1350 * protocol versions), returns NULL and stores 'current' in '*next'. */
1352 ofputil_encode_set_protocol(enum ofputil_protocol current
,
1353 enum ofputil_protocol want
,
1354 enum ofputil_protocol
*next
)
1356 enum ofp_version cur_version
, want_version
;
1357 enum ofputil_protocol cur_base
, want_base
;
1358 bool cur_tid
, want_tid
;
1360 cur_version
= ofputil_protocol_to_ofp_version(current
);
1361 want_version
= ofputil_protocol_to_ofp_version(want
);
1362 if (cur_version
!= want_version
) {
1367 cur_base
= ofputil_protocol_to_base(current
);
1368 want_base
= ofputil_protocol_to_base(want
);
1369 if (cur_base
!= want_base
) {
1370 *next
= ofputil_protocol_set_base(current
, want_base
);
1372 switch (want_base
) {
1373 case OFPUTIL_P_OF10_NXM
:
1374 return ofputil_encode_nx_set_flow_format(NXFF_NXM
);
1376 case OFPUTIL_P_OF10_STD
:
1377 return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10
);
1379 case OFPUTIL_P_OF11_STD
:
1380 case OFPUTIL_P_OF12_OXM
:
1381 case OFPUTIL_P_OF13_OXM
:
1382 case OFPUTIL_P_OF14_OXM
:
1383 case OFPUTIL_P_OF15_OXM
:
1384 case OFPUTIL_P_OF16_OXM
:
1385 /* There is only one variant of each OpenFlow 1.1+ protocol, and we
1386 * verified above that we're not trying to change versions. */
1389 case OFPUTIL_P_OF10_STD_TID
:
1390 case OFPUTIL_P_OF10_NXM_TID
:
1395 cur_tid
= (current
& OFPUTIL_P_TID
) != 0;
1396 want_tid
= (want
& OFPUTIL_P_TID
) != 0;
1397 if (cur_tid
!= want_tid
) {
1398 *next
= ofputil_protocol_set_tid(current
, want_tid
);
1399 return ofputil_make_flow_mod_table_id(want_tid
);
1402 ovs_assert(current
== want
);
1408 /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow
1409 * format to 'nxff'. */
1411 ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff
)
1413 struct nx_set_flow_format
*sff
;
1416 ovs_assert(ofputil_nx_flow_format_is_valid(nxff
));
1418 msg
= ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT
, OFP10_VERSION
, 0);
1419 sff
= ofpbuf_put_zeros(msg
, sizeof *sff
);
1420 sff
->format
= htonl(nxff
);
1425 /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false
1427 enum ofputil_protocol
1428 ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format
)
1430 switch (flow_format
) {
1431 case NXFF_OPENFLOW10
:
1432 return OFPUTIL_P_OF10_STD
;
1435 return OFPUTIL_P_OF10_NXM
;
1442 /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */
1444 ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format
)
1446 return ofputil_nx_flow_format_to_protocol(flow_format
) != 0;
1449 /* Returns a string version of 'flow_format', which must be a valid NXFF_*
1452 ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format
)
1454 switch (flow_format
) {
1455 case NXFF_OPENFLOW10
:
1456 return "openflow10";
1465 ofputil_make_set_packet_in_format(enum ofp_version ofp_version
,
1466 enum nx_packet_in_format packet_in_format
)
1468 struct nx_set_packet_in_format
*spif
;
1471 msg
= ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT
, ofp_version
, 0);
1472 spif
= ofpbuf_put_zeros(msg
, sizeof *spif
);
1473 spif
->format
= htonl(packet_in_format
);
1478 /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id
1479 * extension on or off (according to 'flow_mod_table_id'). */
1481 ofputil_make_flow_mod_table_id(bool flow_mod_table_id
)
1483 struct nx_flow_mod_table_id
*nfmti
;
1486 msg
= ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID
, OFP10_VERSION
, 0);
1487 nfmti
= ofpbuf_put_zeros(msg
, sizeof *nfmti
);
1488 nfmti
->set
= flow_mod_table_id
;
1492 struct ofputil_flow_mod_flag
{
1494 enum ofp_version min_version
, max_version
;
1495 enum ofputil_flow_mod_flags flag
;
1498 static const struct ofputil_flow_mod_flag ofputil_flow_mod_flags
[] = {
1499 { OFPFF_SEND_FLOW_REM
, OFP10_VERSION
, 0, OFPUTIL_FF_SEND_FLOW_REM
},
1500 { OFPFF_CHECK_OVERLAP
, OFP10_VERSION
, 0, OFPUTIL_FF_CHECK_OVERLAP
},
1501 { OFPFF10_EMERG
, OFP10_VERSION
, OFP10_VERSION
,
1503 { OFPFF12_RESET_COUNTS
, OFP12_VERSION
, 0, OFPUTIL_FF_RESET_COUNTS
},
1504 { OFPFF13_NO_PKT_COUNTS
, OFP13_VERSION
, 0, OFPUTIL_FF_NO_PKT_COUNTS
},
1505 { OFPFF13_NO_BYT_COUNTS
, OFP13_VERSION
, 0, OFPUTIL_FF_NO_BYT_COUNTS
},
1510 ofputil_decode_flow_mod_flags(ovs_be16 raw_flags_
,
1511 enum ofp_flow_mod_command command
,
1512 enum ofp_version version
,
1513 enum ofputil_flow_mod_flags
*flagsp
)
1515 uint16_t raw_flags
= ntohs(raw_flags_
);
1516 const struct ofputil_flow_mod_flag
*f
;
1519 for (f
= ofputil_flow_mod_flags
; f
->raw_flag
; f
++) {
1520 if (raw_flags
& f
->raw_flag
1521 && version
>= f
->min_version
1522 && (!f
->max_version
|| version
<= f
->max_version
)) {
1523 raw_flags
&= ~f
->raw_flag
;
1528 /* In OF1.0 and OF1.1, "add" always resets counters, and other commands
1531 * In OF1.2 and later, OFPFF12_RESET_COUNTS controls whether each command
1532 * resets counters. */
1533 if ((version
== OFP10_VERSION
|| version
== OFP11_VERSION
)
1534 && command
== OFPFC_ADD
) {
1535 *flagsp
|= OFPUTIL_FF_RESET_COUNTS
;
1538 return raw_flags
? OFPERR_OFPFMFC_BAD_FLAGS
: 0;
1542 ofputil_encode_flow_mod_flags(enum ofputil_flow_mod_flags flags
,
1543 enum ofp_version version
)
1545 const struct ofputil_flow_mod_flag
*f
;
1549 for (f
= ofputil_flow_mod_flags
; f
->raw_flag
; f
++) {
1551 && version
>= f
->min_version
1552 && (!f
->max_version
|| version
<= f
->max_version
)) {
1553 raw_flags
|= f
->raw_flag
;
1557 return htons(raw_flags
);
1560 /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract
1561 * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error
1564 * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions.
1565 * The caller must initialize 'ofpacts' and retains ownership of it.
1566 * 'fm->ofpacts' will point into the 'ofpacts' buffer.
1568 * Does not validate the flow_mod actions. The caller should do that, with
1569 * ofpacts_check(). */
1571 ofputil_decode_flow_mod(struct ofputil_flow_mod
*fm
,
1572 const struct ofp_header
*oh
,
1573 enum ofputil_protocol protocol
,
1574 const struct tun_table
*tun_table
,
1575 const struct vl_mff_map
*vl_mff_map
,
1576 struct ofpbuf
*ofpacts
,
1577 ofp_port_t max_port
, uint8_t max_table
)
1581 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
1582 enum ofpraw raw
= ofpraw_pull_assert(&b
);
1583 if (raw
== OFPRAW_OFPT11_FLOW_MOD
) {
1584 /* Standard OpenFlow 1.1+ flow_mod. */
1585 const struct ofp11_flow_mod
*ofm
;
1587 ofm
= ofpbuf_pull(&b
, sizeof *ofm
);
1589 error
= ofputil_pull_ofp11_match(&b
, tun_table
, vl_mff_map
, &fm
->match
,
1595 /* Translate the message. */
1596 fm
->priority
= ntohs(ofm
->priority
);
1597 if (ofm
->command
== OFPFC_ADD
1598 || (oh
->version
== OFP11_VERSION
1599 && (ofm
->command
== OFPFC_MODIFY
||
1600 ofm
->command
== OFPFC_MODIFY_STRICT
)
1601 && ofm
->cookie_mask
== htonll(0))) {
1602 /* In OpenFlow 1.1 only, a "modify" or "modify-strict" that does
1603 * not match on the cookie is treated as an "add" if there is no
1605 fm
->cookie
= htonll(0);
1606 fm
->cookie_mask
= htonll(0);
1607 fm
->new_cookie
= ofm
->cookie
;
1609 fm
->cookie
= ofm
->cookie
;
1610 fm
->cookie_mask
= ofm
->cookie_mask
;
1611 fm
->new_cookie
= OVS_BE64_MAX
;
1613 fm
->modify_cookie
= false;
1614 fm
->command
= ofm
->command
;
1618 * OF1.1 entirely forbids table_id == OFPTT_ALL.
1619 * OF1.2+ allows table_id == OFPTT_ALL only for deletes. */
1620 fm
->table_id
= ofm
->table_id
;
1621 if (fm
->table_id
== OFPTT_ALL
1622 && (oh
->version
== OFP11_VERSION
1623 || (ofm
->command
!= OFPFC_DELETE
&&
1624 ofm
->command
!= OFPFC_DELETE_STRICT
))) {
1625 return OFPERR_OFPFMFC_BAD_TABLE_ID
;
1628 fm
->idle_timeout
= ntohs(ofm
->idle_timeout
);
1629 fm
->hard_timeout
= ntohs(ofm
->hard_timeout
);
1630 if (oh
->version
>= OFP14_VERSION
&& ofm
->command
== OFPFC_ADD
) {
1631 fm
->importance
= ntohs(ofm
->importance
);
1635 fm
->buffer_id
= ntohl(ofm
->buffer_id
);
1636 error
= ofputil_port_from_ofp11(ofm
->out_port
, &fm
->out_port
);
1641 fm
->out_group
= (ofm
->command
== OFPFC_DELETE
||
1642 ofm
->command
== OFPFC_DELETE_STRICT
1643 ? ntohl(ofm
->out_group
)
1645 raw_flags
= ofm
->flags
;
1649 if (raw
== OFPRAW_OFPT10_FLOW_MOD
) {
1650 /* Standard OpenFlow 1.0 flow_mod. */
1651 const struct ofp10_flow_mod
*ofm
;
1653 /* Get the ofp10_flow_mod. */
1654 ofm
= ofpbuf_pull(&b
, sizeof *ofm
);
1656 /* Translate the rule. */
1657 ofputil_match_from_ofp10_match(&ofm
->match
, &fm
->match
);
1658 ofputil_normalize_match(&fm
->match
);
1660 /* OpenFlow 1.0 says that exact-match rules have to have the
1661 * highest possible priority. */
1662 fm
->priority
= (ofm
->match
.wildcards
& htonl(OFPFW10_ALL
)
1663 ? ntohs(ofm
->priority
)
1666 /* Translate the message. */
1667 command
= ntohs(ofm
->command
);
1668 fm
->cookie
= htonll(0);
1669 fm
->cookie_mask
= htonll(0);
1670 fm
->new_cookie
= ofm
->cookie
;
1671 fm
->idle_timeout
= ntohs(ofm
->idle_timeout
);
1672 fm
->hard_timeout
= ntohs(ofm
->hard_timeout
);
1674 fm
->buffer_id
= ntohl(ofm
->buffer_id
);
1675 fm
->out_port
= u16_to_ofp(ntohs(ofm
->out_port
));
1676 fm
->out_group
= OFPG_ANY
;
1677 raw_flags
= ofm
->flags
;
1678 } else if (raw
== OFPRAW_NXT_FLOW_MOD
) {
1679 /* Nicira extended flow_mod. */
1680 const struct nx_flow_mod
*nfm
;
1682 /* Dissect the message. */
1683 nfm
= ofpbuf_pull(&b
, sizeof *nfm
);
1684 error
= nx_pull_match(&b
, ntohs(nfm
->match_len
),
1685 &fm
->match
, &fm
->cookie
, &fm
->cookie_mask
,
1686 tun_table
, vl_mff_map
);
1691 /* Translate the message. */
1692 command
= ntohs(nfm
->command
);
1693 if ((command
& 0xff) == OFPFC_ADD
&& fm
->cookie_mask
) {
1694 /* Flow additions may only set a new cookie, not match an
1695 * existing cookie. */
1696 return OFPERR_NXBRC_NXM_INVALID
;
1698 fm
->priority
= ntohs(nfm
->priority
);
1699 fm
->new_cookie
= nfm
->cookie
;
1700 fm
->idle_timeout
= ntohs(nfm
->idle_timeout
);
1701 fm
->hard_timeout
= ntohs(nfm
->hard_timeout
);
1703 fm
->buffer_id
= ntohl(nfm
->buffer_id
);
1704 fm
->out_port
= u16_to_ofp(ntohs(nfm
->out_port
));
1705 fm
->out_group
= OFPG_ANY
;
1706 raw_flags
= nfm
->flags
;
1711 fm
->modify_cookie
= fm
->new_cookie
!= OVS_BE64_MAX
;
1712 if (protocol
& OFPUTIL_P_TID
) {
1713 fm
->command
= command
& 0xff;
1714 fm
->table_id
= command
>> 8;
1716 if (command
> 0xff) {
1717 VLOG_WARN_RL(&bad_ofmsg_rl
, "flow_mod has explicit table_id "
1718 "but flow_mod_table_id extension is not enabled");
1720 fm
->command
= command
;
1721 fm
->table_id
= 0xff;
1725 if (fm
->command
> OFPFC_DELETE_STRICT
) {
1726 return OFPERR_OFPFMFC_BAD_COMMAND
;
1729 error
= ofpacts_pull_openflow_instructions(&b
, b
.size
, oh
->version
,
1730 vl_mff_map
, ofpacts
);
1734 fm
->ofpacts
= ofpacts
->data
;
1735 fm
->ofpacts_len
= ofpacts
->size
;
1737 error
= ofputil_decode_flow_mod_flags(raw_flags
, fm
->command
,
1738 oh
->version
, &fm
->flags
);
1743 if (fm
->flags
& OFPUTIL_FF_EMERG
) {
1744 /* We do not support the OpenFlow 1.0 emergency flow cache, which
1745 * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1.
1747 * OpenFlow 1.0 specifies the error code to use when idle_timeout
1748 * or hard_timeout is nonzero. Otherwise, there is no good error
1749 * code, so just state that the flow table is full. */
1750 return (fm
->hard_timeout
|| fm
->idle_timeout
1751 ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT
1752 : OFPERR_OFPFMFC_TABLE_FULL
);
1755 return ofpacts_check_consistency(fm
->ofpacts
, fm
->ofpacts_len
,
1756 &fm
->match
, max_port
,
1757 fm
->table_id
, max_table
, protocol
);
1761 ofputil_pull_bands(struct ofpbuf
*msg
, size_t len
, uint16_t *n_bands
,
1762 struct ofpbuf
*bands
)
1764 const struct ofp13_meter_band_header
*ombh
;
1765 struct ofputil_meter_band
*mb
;
1768 ombh
= ofpbuf_try_pull(msg
, len
);
1770 return OFPERR_OFPBRC_BAD_LEN
;
1773 while (len
>= sizeof (struct ofp13_meter_band_drop
)) {
1774 size_t ombh_len
= ntohs(ombh
->len
);
1775 /* All supported band types have the same length. */
1776 if (ombh_len
!= sizeof (struct ofp13_meter_band_drop
)) {
1777 return OFPERR_OFPBRC_BAD_LEN
;
1779 mb
= ofpbuf_put_uninit(bands
, sizeof *mb
);
1780 mb
->type
= ntohs(ombh
->type
);
1781 if (mb
->type
!= OFPMBT13_DROP
&& mb
->type
!= OFPMBT13_DSCP_REMARK
) {
1782 return OFPERR_OFPMMFC_BAD_BAND
;
1784 mb
->rate
= ntohl(ombh
->rate
);
1785 mb
->burst_size
= ntohl(ombh
->burst_size
);
1786 mb
->prec_level
= (mb
->type
== OFPMBT13_DSCP_REMARK
) ?
1787 ((struct ofp13_meter_band_dscp_remark
*)ombh
)->prec_level
: 0;
1790 ombh
= ALIGNED_CAST(struct ofp13_meter_band_header
*,
1791 (char *) ombh
+ ombh_len
);
1794 return OFPERR_OFPBRC_BAD_LEN
;
1801 ofputil_decode_meter_mod(const struct ofp_header
*oh
,
1802 struct ofputil_meter_mod
*mm
,
1803 struct ofpbuf
*bands
)
1805 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
1806 ofpraw_pull_assert(&b
);
1807 const struct ofp13_meter_mod
*omm
= ofpbuf_pull(&b
, sizeof *omm
);
1809 /* Translate the message. */
1810 mm
->command
= ntohs(omm
->command
);
1811 if (mm
->command
!= OFPMC13_ADD
&&
1812 mm
->command
!= OFPMC13_MODIFY
&&
1813 mm
->command
!= OFPMC13_DELETE
) {
1814 return OFPERR_OFPMMFC_BAD_COMMAND
;
1816 mm
->meter
.meter_id
= ntohl(omm
->meter_id
);
1818 if (mm
->command
== OFPMC13_DELETE
) {
1819 mm
->meter
.flags
= 0;
1820 mm
->meter
.n_bands
= 0;
1821 mm
->meter
.bands
= NULL
;
1825 mm
->meter
.flags
= ntohs(omm
->flags
);
1826 if (mm
->meter
.flags
& OFPMF13_KBPS
&&
1827 mm
->meter
.flags
& OFPMF13_PKTPS
) {
1828 return OFPERR_OFPMMFC_BAD_FLAGS
;
1830 mm
->meter
.bands
= bands
->data
;
1832 error
= ofputil_pull_bands(&b
, b
.size
, &mm
->meter
.n_bands
, bands
);
1841 ofputil_decode_meter_request(const struct ofp_header
*oh
, uint32_t *meter_id
)
1843 const struct ofp13_meter_multipart_request
*omr
= ofpmsg_body(oh
);
1844 *meter_id
= ntohl(omr
->meter_id
);
1848 ofputil_encode_meter_request(enum ofp_version ofp_version
,
1849 enum ofputil_meter_request_type type
,
1857 case OFPUTIL_METER_CONFIG
:
1858 raw
= OFPRAW_OFPST13_METER_CONFIG_REQUEST
;
1860 case OFPUTIL_METER_STATS
:
1861 raw
= OFPRAW_OFPST13_METER_REQUEST
;
1864 case OFPUTIL_METER_FEATURES
:
1865 raw
= OFPRAW_OFPST13_METER_FEATURES_REQUEST
;
1869 msg
= ofpraw_alloc(raw
, ofp_version
, 0);
1871 if (type
!= OFPUTIL_METER_FEATURES
) {
1872 struct ofp13_meter_multipart_request
*omr
;
1873 omr
= ofpbuf_put_zeros(msg
, sizeof *omr
);
1874 omr
->meter_id
= htonl(meter_id
);
1880 ofputil_put_bands(uint16_t n_bands
, const struct ofputil_meter_band
*mb
,
1885 for (n
= 0; n
< n_bands
; ++n
) {
1886 /* Currently all band types have same size. */
1887 struct ofp13_meter_band_dscp_remark
*ombh
;
1888 size_t ombh_len
= sizeof *ombh
;
1890 ombh
= ofpbuf_put_zeros(msg
, ombh_len
);
1892 ombh
->type
= htons(mb
->type
);
1893 ombh
->len
= htons(ombh_len
);
1894 ombh
->rate
= htonl(mb
->rate
);
1895 ombh
->burst_size
= htonl(mb
->burst_size
);
1896 ombh
->prec_level
= mb
->prec_level
;
1902 /* Encode a meter stat for 'mc' and append it to 'replies'. */
1904 ofputil_append_meter_config(struct ovs_list
*replies
,
1905 const struct ofputil_meter_config
*mc
)
1907 struct ofpbuf
*msg
= ofpbuf_from_list(ovs_list_back(replies
));
1908 size_t start_ofs
= msg
->size
;
1909 struct ofp13_meter_config
*reply
;
1911 ofpbuf_put_uninit(msg
, sizeof *reply
);
1912 ofputil_put_bands(mc
->n_bands
, mc
->bands
, msg
);
1914 reply
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *reply
);
1915 reply
->flags
= htons(mc
->flags
);
1916 reply
->meter_id
= htonl(mc
->meter_id
);
1917 reply
->length
= htons(msg
->size
- start_ofs
);
1919 ofpmp_postappend(replies
, start_ofs
);
1922 /* Encode a meter stat for 'ms' and append it to 'replies'. */
1924 ofputil_append_meter_stats(struct ovs_list
*replies
,
1925 const struct ofputil_meter_stats
*ms
)
1927 struct ofp13_meter_stats
*reply
;
1931 len
= sizeof *reply
+ ms
->n_bands
* sizeof(struct ofp13_meter_band_stats
);
1932 reply
= ofpmp_append(replies
, len
);
1934 reply
->meter_id
= htonl(ms
->meter_id
);
1935 reply
->len
= htons(len
);
1936 memset(reply
->pad
, 0, sizeof reply
->pad
);
1937 reply
->flow_count
= htonl(ms
->flow_count
);
1938 reply
->packet_in_count
= htonll(ms
->packet_in_count
);
1939 reply
->byte_in_count
= htonll(ms
->byte_in_count
);
1940 reply
->duration_sec
= htonl(ms
->duration_sec
);
1941 reply
->duration_nsec
= htonl(ms
->duration_nsec
);
1943 for (n
= 0; n
< ms
->n_bands
; ++n
) {
1944 const struct ofputil_meter_band_stats
*src
= &ms
->bands
[n
];
1945 struct ofp13_meter_band_stats
*dst
= &reply
->band_stats
[n
];
1947 dst
->packet_band_count
= htonll(src
->packet_count
);
1948 dst
->byte_band_count
= htonll(src
->byte_count
);
1952 /* Converts an OFPMP_METER_CONFIG reply in 'msg' into an abstract
1953 * ofputil_meter_config in 'mc', with mc->bands pointing to bands decoded into
1954 * 'bands'. The caller must have initialized 'bands' and retains ownership of
1955 * it across the call.
1957 * Multiple OFPST13_METER_CONFIG replies can be packed into a single OpenFlow
1958 * message. Calling this function multiple times for a single 'msg' iterates
1959 * through the replies. 'bands' is cleared for each reply.
1961 * Returns 0 if successful, EOF if no replies were left in this 'msg',
1962 * otherwise a positive errno value. */
1964 ofputil_decode_meter_config(struct ofpbuf
*msg
,
1965 struct ofputil_meter_config
*mc
,
1966 struct ofpbuf
*bands
)
1968 const struct ofp13_meter_config
*omc
;
1971 /* Pull OpenFlow headers for the first call. */
1973 ofpraw_pull_assert(msg
);
1980 omc
= ofpbuf_try_pull(msg
, sizeof *omc
);
1982 VLOG_WARN_RL(&bad_ofmsg_rl
,
1983 "OFPMP_METER_CONFIG reply has %"PRIu32
" leftover bytes at end",
1985 return OFPERR_OFPBRC_BAD_LEN
;
1988 ofpbuf_clear(bands
);
1989 err
= ofputil_pull_bands(msg
, ntohs(omc
->length
) - sizeof *omc
,
1990 &mc
->n_bands
, bands
);
1994 mc
->meter_id
= ntohl(omc
->meter_id
);
1995 mc
->flags
= ntohs(omc
->flags
);
1996 mc
->bands
= bands
->data
;
2002 ofputil_pull_band_stats(struct ofpbuf
*msg
, size_t len
, uint16_t *n_bands
,
2003 struct ofpbuf
*bands
)
2005 const struct ofp13_meter_band_stats
*ombs
;
2006 struct ofputil_meter_band_stats
*mbs
;
2009 ombs
= ofpbuf_try_pull(msg
, len
);
2011 return OFPERR_OFPBRC_BAD_LEN
;
2014 n
= len
/ sizeof *ombs
;
2015 if (len
!= n
* sizeof *ombs
) {
2016 return OFPERR_OFPBRC_BAD_LEN
;
2019 mbs
= ofpbuf_put_uninit(bands
, len
);
2021 for (i
= 0; i
< n
; ++i
) {
2022 mbs
[i
].packet_count
= ntohll(ombs
[i
].packet_band_count
);
2023 mbs
[i
].byte_count
= ntohll(ombs
[i
].byte_band_count
);
2029 /* Converts an OFPMP_METER reply in 'msg' into an abstract
2030 * ofputil_meter_stats in 'ms', with ms->bands pointing to band stats
2031 * decoded into 'bands'.
2033 * Multiple OFPMP_METER replies can be packed into a single OpenFlow
2034 * message. Calling this function multiple times for a single 'msg' iterates
2035 * through the replies. 'bands' is cleared for each reply.
2037 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2038 * otherwise a positive errno value. */
2040 ofputil_decode_meter_stats(struct ofpbuf
*msg
,
2041 struct ofputil_meter_stats
*ms
,
2042 struct ofpbuf
*bands
)
2044 const struct ofp13_meter_stats
*oms
;
2047 /* Pull OpenFlow headers for the first call. */
2049 ofpraw_pull_assert(msg
);
2056 oms
= ofpbuf_try_pull(msg
, sizeof *oms
);
2058 VLOG_WARN_RL(&bad_ofmsg_rl
,
2059 "OFPMP_METER reply has %"PRIu32
" leftover bytes at end",
2061 return OFPERR_OFPBRC_BAD_LEN
;
2064 ofpbuf_clear(bands
);
2065 err
= ofputil_pull_band_stats(msg
, ntohs(oms
->len
) - sizeof *oms
,
2066 &ms
->n_bands
, bands
);
2070 ms
->meter_id
= ntohl(oms
->meter_id
);
2071 ms
->flow_count
= ntohl(oms
->flow_count
);
2072 ms
->packet_in_count
= ntohll(oms
->packet_in_count
);
2073 ms
->byte_in_count
= ntohll(oms
->byte_in_count
);
2074 ms
->duration_sec
= ntohl(oms
->duration_sec
);
2075 ms
->duration_nsec
= ntohl(oms
->duration_nsec
);
2076 ms
->bands
= bands
->data
;
2082 ofputil_decode_meter_features(const struct ofp_header
*oh
,
2083 struct ofputil_meter_features
*mf
)
2085 const struct ofp13_meter_features
*omf
= ofpmsg_body(oh
);
2087 mf
->max_meters
= ntohl(omf
->max_meter
);
2088 mf
->band_types
= ntohl(omf
->band_types
);
2089 mf
->capabilities
= ntohl(omf
->capabilities
);
2090 mf
->max_bands
= omf
->max_bands
;
2091 mf
->max_color
= omf
->max_color
;
2095 ofputil_encode_meter_features_reply(const struct ofputil_meter_features
*mf
,
2096 const struct ofp_header
*request
)
2098 struct ofpbuf
*reply
;
2099 struct ofp13_meter_features
*omf
;
2101 reply
= ofpraw_alloc_stats_reply(request
, 0);
2102 omf
= ofpbuf_put_zeros(reply
, sizeof *omf
);
2104 omf
->max_meter
= htonl(mf
->max_meters
);
2105 omf
->band_types
= htonl(mf
->band_types
);
2106 omf
->capabilities
= htonl(mf
->capabilities
);
2107 omf
->max_bands
= mf
->max_bands
;
2108 omf
->max_color
= mf
->max_color
;
2114 ofputil_encode_meter_mod(enum ofp_version ofp_version
,
2115 const struct ofputil_meter_mod
*mm
)
2119 struct ofp13_meter_mod
*omm
;
2121 msg
= ofpraw_alloc(OFPRAW_OFPT13_METER_MOD
, ofp_version
,
2122 NXM_TYPICAL_LEN
+ mm
->meter
.n_bands
* 16);
2123 omm
= ofpbuf_put_zeros(msg
, sizeof *omm
);
2124 omm
->command
= htons(mm
->command
);
2125 if (mm
->command
!= OFPMC13_DELETE
) {
2126 omm
->flags
= htons(mm
->meter
.flags
);
2128 omm
->meter_id
= htonl(mm
->meter
.meter_id
);
2130 ofputil_put_bands(mm
->meter
.n_bands
, mm
->meter
.bands
, msg
);
2132 ofpmsg_update_length(msg
);
2137 ofputil_tid_command(const struct ofputil_flow_mod
*fm
,
2138 enum ofputil_protocol protocol
)
2140 return htons(protocol
& OFPUTIL_P_TID
2141 ? (fm
->command
& 0xff) | (fm
->table_id
<< 8)
2145 /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
2146 * 'protocol' and returns the message. */
2148 ofputil_encode_flow_mod(const struct ofputil_flow_mod
*fm
,
2149 enum ofputil_protocol protocol
)
2151 enum ofp_version version
= ofputil_protocol_to_ofp_version(protocol
);
2152 ovs_be16 raw_flags
= ofputil_encode_flow_mod_flags(fm
->flags
, version
);
2156 case OFPUTIL_P_OF11_STD
:
2157 case OFPUTIL_P_OF12_OXM
:
2158 case OFPUTIL_P_OF13_OXM
:
2159 case OFPUTIL_P_OF14_OXM
:
2160 case OFPUTIL_P_OF15_OXM
:
2161 case OFPUTIL_P_OF16_OXM
: {
2162 struct ofp11_flow_mod
*ofm
;
2165 tailroom
= ofputil_match_typical_len(protocol
) + fm
->ofpacts_len
;
2166 msg
= ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD
, version
, tailroom
);
2167 ofm
= ofpbuf_put_zeros(msg
, sizeof *ofm
);
2168 if ((protocol
== OFPUTIL_P_OF11_STD
2169 && (fm
->command
== OFPFC_MODIFY
||
2170 fm
->command
== OFPFC_MODIFY_STRICT
)
2171 && fm
->cookie_mask
== htonll(0))
2172 || fm
->command
== OFPFC_ADD
) {
2173 ofm
->cookie
= fm
->new_cookie
;
2175 ofm
->cookie
= fm
->cookie
& fm
->cookie_mask
;
2177 ofm
->cookie_mask
= fm
->cookie_mask
;
2178 if (fm
->table_id
!= OFPTT_ALL
2179 || (protocol
!= OFPUTIL_P_OF11_STD
2180 && (fm
->command
== OFPFC_DELETE
||
2181 fm
->command
== OFPFC_DELETE_STRICT
))) {
2182 ofm
->table_id
= fm
->table_id
;
2186 ofm
->command
= fm
->command
;
2187 ofm
->idle_timeout
= htons(fm
->idle_timeout
);
2188 ofm
->hard_timeout
= htons(fm
->hard_timeout
);
2189 ofm
->priority
= htons(fm
->priority
);
2190 ofm
->buffer_id
= htonl(fm
->buffer_id
);
2191 ofm
->out_port
= ofputil_port_to_ofp11(fm
->out_port
);
2192 ofm
->out_group
= htonl(fm
->out_group
);
2193 ofm
->flags
= raw_flags
;
2194 if (version
>= OFP14_VERSION
&& fm
->command
== OFPFC_ADD
) {
2195 ofm
->importance
= htons(fm
->importance
);
2197 ofm
->importance
= 0;
2199 ofputil_put_ofp11_match(msg
, &fm
->match
, protocol
);
2200 ofpacts_put_openflow_instructions(fm
->ofpacts
, fm
->ofpacts_len
, msg
,
2205 case OFPUTIL_P_OF10_STD
:
2206 case OFPUTIL_P_OF10_STD_TID
: {
2207 struct ofp10_flow_mod
*ofm
;
2209 msg
= ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD
, OFP10_VERSION
,
2211 ofm
= ofpbuf_put_zeros(msg
, sizeof *ofm
);
2212 ofputil_match_to_ofp10_match(&fm
->match
, &ofm
->match
);
2213 ofm
->cookie
= fm
->new_cookie
;
2214 ofm
->command
= ofputil_tid_command(fm
, protocol
);
2215 ofm
->idle_timeout
= htons(fm
->idle_timeout
);
2216 ofm
->hard_timeout
= htons(fm
->hard_timeout
);
2217 ofm
->priority
= htons(fm
->priority
);
2218 ofm
->buffer_id
= htonl(fm
->buffer_id
);
2219 ofm
->out_port
= htons(ofp_to_u16(fm
->out_port
));
2220 ofm
->flags
= raw_flags
;
2221 ofpacts_put_openflow_actions(fm
->ofpacts
, fm
->ofpacts_len
, msg
,
2226 case OFPUTIL_P_OF10_NXM
:
2227 case OFPUTIL_P_OF10_NXM_TID
: {
2228 struct nx_flow_mod
*nfm
;
2231 msg
= ofpraw_alloc(OFPRAW_NXT_FLOW_MOD
, OFP10_VERSION
,
2232 NXM_TYPICAL_LEN
+ fm
->ofpacts_len
);
2233 nfm
= ofpbuf_put_zeros(msg
, sizeof *nfm
);
2234 nfm
->command
= ofputil_tid_command(fm
, protocol
);
2235 nfm
->cookie
= fm
->new_cookie
;
2236 match_len
= nx_put_match(msg
, &fm
->match
, fm
->cookie
, fm
->cookie_mask
);
2238 nfm
->idle_timeout
= htons(fm
->idle_timeout
);
2239 nfm
->hard_timeout
= htons(fm
->hard_timeout
);
2240 nfm
->priority
= htons(fm
->priority
);
2241 nfm
->buffer_id
= htonl(fm
->buffer_id
);
2242 nfm
->out_port
= htons(ofp_to_u16(fm
->out_port
));
2243 nfm
->flags
= raw_flags
;
2244 nfm
->match_len
= htons(match_len
);
2245 ofpacts_put_openflow_actions(fm
->ofpacts
, fm
->ofpacts_len
, msg
,
2254 ofpmsg_update_length(msg
);
2259 ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request
*fsr
,
2260 const struct ofp10_flow_stats_request
*ofsr
,
2263 fsr
->aggregate
= aggregate
;
2264 ofputil_match_from_ofp10_match(&ofsr
->match
, &fsr
->match
);
2265 fsr
->out_port
= u16_to_ofp(ntohs(ofsr
->out_port
));
2266 fsr
->out_group
= OFPG_ANY
;
2267 fsr
->table_id
= ofsr
->table_id
;
2268 fsr
->cookie
= fsr
->cookie_mask
= htonll(0);
2274 ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request
*fsr
,
2275 struct ofpbuf
*b
, bool aggregate
,
2276 const struct tun_table
*tun_table
,
2277 const struct vl_mff_map
*vl_mff_map
)
2279 const struct ofp11_flow_stats_request
*ofsr
;
2282 ofsr
= ofpbuf_pull(b
, sizeof *ofsr
);
2283 fsr
->aggregate
= aggregate
;
2284 fsr
->table_id
= ofsr
->table_id
;
2285 error
= ofputil_port_from_ofp11(ofsr
->out_port
, &fsr
->out_port
);
2289 fsr
->out_group
= ntohl(ofsr
->out_group
);
2290 fsr
->cookie
= ofsr
->cookie
;
2291 fsr
->cookie_mask
= ofsr
->cookie_mask
;
2292 error
= ofputil_pull_ofp11_match(b
, tun_table
, vl_mff_map
, &fsr
->match
,
2302 ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request
*fsr
,
2303 struct ofpbuf
*b
, bool aggregate
,
2304 const struct tun_table
*tun_table
,
2305 const struct vl_mff_map
*vl_mff_map
)
2307 const struct nx_flow_stats_request
*nfsr
;
2310 nfsr
= ofpbuf_pull(b
, sizeof *nfsr
);
2311 error
= nx_pull_match(b
, ntohs(nfsr
->match_len
), &fsr
->match
,
2312 &fsr
->cookie
, &fsr
->cookie_mask
, tun_table
,
2318 return OFPERR_OFPBRC_BAD_LEN
;
2321 fsr
->aggregate
= aggregate
;
2322 fsr
->out_port
= u16_to_ofp(ntohs(nfsr
->out_port
));
2323 fsr
->out_group
= OFPG_ANY
;
2324 fsr
->table_id
= nfsr
->table_id
;
2329 /* Constructs and returns an OFPT_QUEUE_GET_CONFIG request for the specified
2330 * 'port' and 'queue', suitable for OpenFlow version 'version'.
2332 * 'queue' is honored only for OpenFlow 1.4 and later; older versions always
2333 * request all queues. */
2335 ofputil_encode_queue_get_config_request(enum ofp_version version
,
2339 struct ofpbuf
*request
;
2341 if (version
== OFP10_VERSION
) {
2342 struct ofp10_queue_get_config_request
*qgcr10
;
2344 request
= ofpraw_alloc(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST
,
2346 qgcr10
= ofpbuf_put_zeros(request
, sizeof *qgcr10
);
2347 qgcr10
->port
= htons(ofp_to_u16(port
));
2348 } else if (version
< OFP14_VERSION
) {
2349 struct ofp11_queue_get_config_request
*qgcr11
;
2351 request
= ofpraw_alloc(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST
,
2353 qgcr11
= ofpbuf_put_zeros(request
, sizeof *qgcr11
);
2354 qgcr11
->port
= ofputil_port_to_ofp11(port
);
2356 struct ofp14_queue_desc_request
*qdr14
;
2358 request
= ofpraw_alloc(OFPRAW_OFPST14_QUEUE_DESC_REQUEST
,
2360 qdr14
= ofpbuf_put_zeros(request
, sizeof *qdr14
);
2361 qdr14
->port
= ofputil_port_to_ofp11(port
);
2362 qdr14
->queue
= htonl(queue
);
2368 /* Parses OFPT_QUEUE_GET_CONFIG request 'oh', storing the port specified by the
2369 * request into '*port'. Returns 0 if successful, otherwise an OpenFlow error
2372 ofputil_decode_queue_get_config_request(const struct ofp_header
*oh
,
2373 ofp_port_t
*port
, uint32_t *queue
)
2375 const struct ofp10_queue_get_config_request
*qgcr10
;
2376 const struct ofp11_queue_get_config_request
*qgcr11
;
2377 const struct ofp14_queue_desc_request
*qdr14
;
2378 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
2379 enum ofpraw raw
= ofpraw_pull_assert(&b
);
2381 switch ((int) raw
) {
2382 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST
:
2384 *port
= u16_to_ofp(ntohs(qgcr10
->port
));
2388 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST
:
2391 enum ofperr error
= ofputil_port_from_ofp11(qgcr11
->port
, port
);
2392 if (error
|| *port
== OFPP_ANY
) {
2397 case OFPRAW_OFPST14_QUEUE_DESC_REQUEST
:
2399 *queue
= ntohl(qdr14
->queue
);
2400 return ofputil_port_from_ofp11(qdr14
->port
, port
);
2406 return (ofp_to_u16(*port
) < ofp_to_u16(OFPP_MAX
)
2408 : OFPERR_OFPQOFC_BAD_PORT
);
2411 /* Constructs and returns the beginning of a reply to
2412 * OFPT_QUEUE_GET_CONFIG_REQUEST or OFPMP_QUEUE_DESC request 'oh'. The caller
2413 * may append information about individual queues with
2414 * ofputil_append_queue_get_config_reply(). */
2416 ofputil_start_queue_get_config_reply(const struct ofp_header
*request
,
2417 struct ovs_list
*replies
)
2419 struct ofpbuf
*reply
;
2424 error
= ofputil_decode_queue_get_config_request(request
, &port
, &queue
);
2427 enum ofpraw raw
= ofpraw_decode_assert(request
);
2428 switch ((int) raw
) {
2429 case OFPRAW_OFPT10_QUEUE_GET_CONFIG_REQUEST
:
2430 reply
= ofpraw_alloc_reply(OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY
,
2432 struct ofp10_queue_get_config_reply
*qgcr10
2433 = ofpbuf_put_zeros(reply
, sizeof *qgcr10
);
2434 qgcr10
->port
= htons(ofp_to_u16(port
));
2437 case OFPRAW_OFPT11_QUEUE_GET_CONFIG_REQUEST
:
2438 reply
= ofpraw_alloc_reply(OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY
,
2440 struct ofp11_queue_get_config_reply
*qgcr11
2441 = ofpbuf_put_zeros(reply
, sizeof *qgcr11
);
2442 qgcr11
->port
= ofputil_port_to_ofp11(port
);
2445 case OFPRAW_OFPST14_QUEUE_DESC_REQUEST
:
2446 reply
= ofpraw_alloc_stats_reply(request
, 0);
2453 ovs_list_init(replies
);
2454 ovs_list_push_back(replies
, &reply
->list_node
);
2458 put_ofp10_queue_rate(struct ofpbuf
*reply
,
2459 enum ofp10_queue_properties property
, uint16_t rate
)
2461 if (rate
!= UINT16_MAX
) {
2462 struct ofp10_queue_prop_rate
*oqpr
;
2464 oqpr
= ofpbuf_put_zeros(reply
, sizeof *oqpr
);
2465 oqpr
->prop_header
.property
= htons(property
);
2466 oqpr
->prop_header
.len
= htons(sizeof *oqpr
);
2467 oqpr
->rate
= htons(rate
);
2472 put_ofp14_queue_rate(struct ofpbuf
*reply
,
2473 enum ofp14_queue_desc_prop_type type
, uint16_t rate
)
2475 if (rate
!= UINT16_MAX
) {
2476 ofpprop_put_u16(reply
, type
, rate
);
2481 ofputil_append_queue_get_config_reply(const struct ofputil_queue_config
*qc
,
2482 struct ovs_list
*replies
)
2484 enum ofp_version ofp_version
= ofpmp_version(replies
);
2485 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
2486 size_t start_ofs
= reply
->size
;
2490 if (ofp_version
< OFP14_VERSION
) {
2491 if (ofp_version
< OFP12_VERSION
) {
2492 struct ofp10_packet_queue
*opq10
;
2494 opq10
= ofpbuf_put_zeros(reply
, sizeof *opq10
);
2495 opq10
->queue_id
= htonl(qc
->queue
);
2496 len_ofs
= (char *) &opq10
->len
- (char *) reply
->data
;
2498 struct ofp12_packet_queue
*opq12
;
2500 opq12
= ofpbuf_put_zeros(reply
, sizeof *opq12
);
2501 opq12
->port
= ofputil_port_to_ofp11(qc
->port
);
2502 opq12
->queue_id
= htonl(qc
->queue
);
2503 len_ofs
= (char *) &opq12
->len
- (char *) reply
->data
;
2506 put_ofp10_queue_rate(reply
, OFPQT10_MIN_RATE
, qc
->min_rate
);
2507 put_ofp10_queue_rate(reply
, OFPQT11_MAX_RATE
, qc
->max_rate
);
2509 struct ofp14_queue_desc
*oqd
= ofpbuf_put_zeros(reply
, sizeof *oqd
);
2510 oqd
->port_no
= ofputil_port_to_ofp11(qc
->port
);
2511 oqd
->queue_id
= htonl(qc
->queue
);
2512 len_ofs
= (char *) &oqd
->len
- (char *) reply
->data
;
2513 put_ofp14_queue_rate(reply
, OFPQDPT14_MIN_RATE
, qc
->min_rate
);
2514 put_ofp14_queue_rate(reply
, OFPQDPT14_MAX_RATE
, qc
->max_rate
);
2517 len
= ofpbuf_at(reply
, len_ofs
, sizeof *len
);
2518 *len
= htons(reply
->size
- start_ofs
);
2520 if (ofp_version
>= OFP14_VERSION
) {
2521 ofpmp_postappend(replies
, start_ofs
);
2526 parse_ofp10_queue_rate(const struct ofp10_queue_prop_header
*hdr
,
2529 const struct ofp10_queue_prop_rate
*oqpr
;
2531 if (hdr
->len
== htons(sizeof *oqpr
)) {
2532 oqpr
= (const struct ofp10_queue_prop_rate
*) hdr
;
2533 *rate
= ntohs(oqpr
->rate
);
2536 return OFPERR_OFPBRC_BAD_LEN
;
2541 ofputil_pull_queue_get_config_reply10(struct ofpbuf
*msg
,
2542 struct ofputil_queue_config
*queue
)
2544 const struct ofp_header
*oh
= msg
->header
;
2545 unsigned int opq_len
; /* Length of protocol-specific queue header. */
2546 unsigned int len
; /* Total length of queue + properties. */
2548 /* Obtain the port number from the message header. */
2549 if (oh
->version
== OFP10_VERSION
) {
2550 const struct ofp10_queue_get_config_reply
*oqgcr10
= msg
->msg
;
2551 queue
->port
= u16_to_ofp(ntohs(oqgcr10
->port
));
2553 const struct ofp11_queue_get_config_reply
*oqgcr11
= msg
->msg
;
2554 enum ofperr error
= ofputil_port_from_ofp11(oqgcr11
->port
,
2561 /* Pull off the queue header and get the queue number and length. */
2562 if (oh
->version
< OFP12_VERSION
) {
2563 const struct ofp10_packet_queue
*opq10
;
2564 opq10
= ofpbuf_try_pull(msg
, sizeof *opq10
);
2566 return OFPERR_OFPBRC_BAD_LEN
;
2568 queue
->queue
= ntohl(opq10
->queue_id
);
2569 len
= ntohs(opq10
->len
);
2570 opq_len
= sizeof *opq10
;
2572 const struct ofp12_packet_queue
*opq12
;
2573 opq12
= ofpbuf_try_pull(msg
, sizeof *opq12
);
2575 return OFPERR_OFPBRC_BAD_LEN
;
2577 queue
->queue
= ntohl(opq12
->queue_id
);
2578 len
= ntohs(opq12
->len
);
2579 opq_len
= sizeof *opq12
;
2583 if (len
< opq_len
|| len
> msg
->size
+ opq_len
|| len
% 8) {
2584 return OFPERR_OFPBRC_BAD_LEN
;
2588 /* Pull properties. The format of these properties differs from used in
2589 * OF1.4+ so we can't use the common property functions. */
2591 const struct ofp10_queue_prop_header
*hdr
;
2592 unsigned int property
;
2593 unsigned int prop_len
;
2594 enum ofperr error
= 0;
2596 hdr
= ofpbuf_at_assert(msg
, 0, sizeof *hdr
);
2597 prop_len
= ntohs(hdr
->len
);
2598 if (prop_len
< sizeof *hdr
|| prop_len
> msg
->size
|| prop_len
% 8) {
2599 return OFPERR_OFPBRC_BAD_LEN
;
2602 property
= ntohs(hdr
->property
);
2604 case OFPQT10_MIN_RATE
:
2605 error
= parse_ofp10_queue_rate(hdr
, &queue
->min_rate
);
2608 case OFPQT11_MAX_RATE
:
2609 error
= parse_ofp10_queue_rate(hdr
, &queue
->max_rate
);
2613 VLOG_INFO_RL(&bad_ofmsg_rl
, "unknown queue property %u", property
);
2620 ofpbuf_pull(msg
, prop_len
);
2627 ofputil_pull_queue_get_config_reply14(struct ofpbuf
*msg
,
2628 struct ofputil_queue_config
*queue
)
2630 struct ofp14_queue_desc
*oqd14
= ofpbuf_try_pull(msg
, sizeof *oqd14
);
2632 return OFPERR_OFPBRC_BAD_LEN
;
2634 enum ofperr error
= ofputil_port_from_ofp11(oqd14
->port_no
, &queue
->port
);
2638 queue
->queue
= ntohl(oqd14
->queue_id
);
2641 unsigned int len
= ntohs(oqd14
->len
);
2642 if (len
< sizeof *oqd14
|| len
> msg
->size
+ sizeof *oqd14
|| len
% 8) {
2643 return OFPERR_OFPBRC_BAD_LEN
;
2645 len
-= sizeof *oqd14
;
2647 struct ofpbuf properties
= ofpbuf_const_initializer(ofpbuf_pull(msg
, len
),
2649 while (properties
.size
> 0) {
2650 struct ofpbuf payload
;
2653 error
= ofpprop_pull(&properties
, &payload
, &type
);
2659 case OFPQDPT14_MIN_RATE
:
2660 error
= ofpprop_parse_u16(&payload
, &queue
->min_rate
);
2663 case OFPQDPT14_MAX_RATE
:
2664 error
= ofpprop_parse_u16(&payload
, &queue
->max_rate
);
2668 error
= OFPPROP_UNKNOWN(true, "queue desc", type
);
2680 /* Decodes information about a queue from the OFPT_QUEUE_GET_CONFIG_REPLY in
2681 * 'reply' and stores it in '*queue'. ofputil_decode_queue_get_config_reply()
2682 * must already have pulled off the main header.
2684 * This function returns EOF if the last queue has already been decoded, 0 if a
2685 * queue was successfully decoded into '*queue', or an ofperr if there was a
2686 * problem decoding 'reply'. */
2688 ofputil_pull_queue_get_config_reply(struct ofpbuf
*msg
,
2689 struct ofputil_queue_config
*queue
)
2693 /* Pull OpenFlow header. */
2694 raw
= ofpraw_pull_assert(msg
);
2696 /* Pull protocol-specific ofp_queue_get_config_reply header (OF1.4
2697 * doesn't have one at all). */
2698 if (raw
== OFPRAW_OFPT10_QUEUE_GET_CONFIG_REPLY
) {
2699 ofpbuf_pull(msg
, sizeof(struct ofp10_queue_get_config_reply
));
2700 } else if (raw
== OFPRAW_OFPT11_QUEUE_GET_CONFIG_REPLY
) {
2701 ofpbuf_pull(msg
, sizeof(struct ofp11_queue_get_config_reply
));
2703 ovs_assert(raw
== OFPRAW_OFPST14_QUEUE_DESC_REPLY
);
2706 raw
= ofpraw_decode_assert(msg
->header
);
2709 queue
->min_rate
= UINT16_MAX
;
2710 queue
->max_rate
= UINT16_MAX
;
2714 } else if (raw
== OFPRAW_OFPST14_QUEUE_DESC_REPLY
) {
2715 return ofputil_pull_queue_get_config_reply14(msg
, queue
);
2717 return ofputil_pull_queue_get_config_reply10(msg
, queue
);
2721 /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
2722 * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
2723 * successful, otherwise an OpenFlow error code.
2725 * 'vl_mff_map' is an optional parameter that is used to validate the length
2726 * of variable length mf_fields in 'match'. If it is not provided, the
2727 * default mf_fields with maximum length will be used. */
2729 ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request
*fsr
,
2730 const struct ofp_header
*oh
,
2731 const struct tun_table
*tun_table
,
2732 const struct vl_mff_map
*vl_mff_map
)
2734 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
2735 enum ofpraw raw
= ofpraw_pull_assert(&b
);
2736 switch ((int) raw
) {
2737 case OFPRAW_OFPST10_FLOW_REQUEST
:
2738 return ofputil_decode_ofpst10_flow_request(fsr
, b
.data
, false);
2740 case OFPRAW_OFPST10_AGGREGATE_REQUEST
:
2741 return ofputil_decode_ofpst10_flow_request(fsr
, b
.data
, true);
2743 case OFPRAW_OFPST11_FLOW_REQUEST
:
2744 return ofputil_decode_ofpst11_flow_request(fsr
, &b
, false, tun_table
,
2747 case OFPRAW_OFPST11_AGGREGATE_REQUEST
:
2748 return ofputil_decode_ofpst11_flow_request(fsr
, &b
, true, tun_table
,
2751 case OFPRAW_NXST_FLOW_REQUEST
:
2752 return ofputil_decode_nxst_flow_request(fsr
, &b
, false, tun_table
,
2755 case OFPRAW_NXST_AGGREGATE_REQUEST
:
2756 return ofputil_decode_nxst_flow_request(fsr
, &b
, true, tun_table
,
2760 /* Hey, the caller lied. */
2765 /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW,
2766 * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to
2767 * 'protocol', and returns the message. */
2769 ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request
*fsr
,
2770 enum ofputil_protocol protocol
)
2776 case OFPUTIL_P_OF11_STD
:
2777 case OFPUTIL_P_OF12_OXM
:
2778 case OFPUTIL_P_OF13_OXM
:
2779 case OFPUTIL_P_OF14_OXM
:
2780 case OFPUTIL_P_OF15_OXM
:
2781 case OFPUTIL_P_OF16_OXM
: {
2782 struct ofp11_flow_stats_request
*ofsr
;
2784 raw
= (fsr
->aggregate
2785 ? OFPRAW_OFPST11_AGGREGATE_REQUEST
2786 : OFPRAW_OFPST11_FLOW_REQUEST
);
2787 msg
= ofpraw_alloc(raw
, ofputil_protocol_to_ofp_version(protocol
),
2788 ofputil_match_typical_len(protocol
));
2789 ofsr
= ofpbuf_put_zeros(msg
, sizeof *ofsr
);
2790 ofsr
->table_id
= fsr
->table_id
;
2791 ofsr
->out_port
= ofputil_port_to_ofp11(fsr
->out_port
);
2792 ofsr
->out_group
= htonl(fsr
->out_group
);
2793 ofsr
->cookie
= fsr
->cookie
;
2794 ofsr
->cookie_mask
= fsr
->cookie_mask
;
2795 ofputil_put_ofp11_match(msg
, &fsr
->match
, protocol
);
2799 case OFPUTIL_P_OF10_STD
:
2800 case OFPUTIL_P_OF10_STD_TID
: {
2801 struct ofp10_flow_stats_request
*ofsr
;
2803 raw
= (fsr
->aggregate
2804 ? OFPRAW_OFPST10_AGGREGATE_REQUEST
2805 : OFPRAW_OFPST10_FLOW_REQUEST
);
2806 msg
= ofpraw_alloc(raw
, OFP10_VERSION
, 0);
2807 ofsr
= ofpbuf_put_zeros(msg
, sizeof *ofsr
);
2808 ofputil_match_to_ofp10_match(&fsr
->match
, &ofsr
->match
);
2809 ofsr
->table_id
= fsr
->table_id
;
2810 ofsr
->out_port
= htons(ofp_to_u16(fsr
->out_port
));
2814 case OFPUTIL_P_OF10_NXM
:
2815 case OFPUTIL_P_OF10_NXM_TID
: {
2816 struct nx_flow_stats_request
*nfsr
;
2819 raw
= (fsr
->aggregate
2820 ? OFPRAW_NXST_AGGREGATE_REQUEST
2821 : OFPRAW_NXST_FLOW_REQUEST
);
2822 msg
= ofpraw_alloc(raw
, OFP10_VERSION
, NXM_TYPICAL_LEN
);
2823 ofpbuf_put_zeros(msg
, sizeof *nfsr
);
2824 match_len
= nx_put_match(msg
, &fsr
->match
,
2825 fsr
->cookie
, fsr
->cookie_mask
);
2828 nfsr
->out_port
= htons(ofp_to_u16(fsr
->out_port
));
2829 nfsr
->match_len
= htons(match_len
);
2830 nfsr
->table_id
= fsr
->table_id
;
2841 /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
2842 * ofputil_flow_stats in 'fs'.
2844 * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
2845 * OpenFlow message. Calling this function multiple times for a single 'msg'
2846 * iterates through the replies. The caller must initially leave 'msg''s layer
2847 * pointers null and not modify them between calls.
2849 * Most switches don't send the values needed to populate fs->idle_age and
2850 * fs->hard_age, so those members will usually be set to 0. If the switch from
2851 * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass
2852 * 'flow_age_extension' as true so that the contents of 'msg' determine the
2853 * 'idle_age' and 'hard_age' members in 'fs'.
2855 * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats
2856 * reply's actions. The caller must initialize 'ofpacts' and retains ownership
2857 * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer.
2859 * Returns 0 if successful, EOF if no replies were left in this 'msg',
2860 * otherwise a positive errno value. */
2862 ofputil_decode_flow_stats_reply(struct ofputil_flow_stats
*fs
,
2864 bool flow_age_extension
,
2865 struct ofpbuf
*ofpacts
)
2867 const struct ofp_header
*oh
;
2868 size_t instructions_len
;
2872 error
= (msg
->header
? ofpraw_decode(&raw
, msg
->header
)
2873 : ofpraw_pull(&raw
, msg
));
2881 } else if (raw
== OFPRAW_OFPST11_FLOW_REPLY
2882 || raw
== OFPRAW_OFPST13_FLOW_REPLY
) {
2883 const struct ofp11_flow_stats
*ofs
;
2885 uint16_t padded_match_len
;
2887 ofs
= ofpbuf_try_pull(msg
, sizeof *ofs
);
2889 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply has %"PRIu32
" leftover "
2890 "bytes at end", msg
->size
);
2894 length
= ntohs(ofs
->length
);
2895 if (length
< sizeof *ofs
) {
2896 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply claims invalid "
2897 "length %"PRIuSIZE
, length
);
2901 if (ofputil_pull_ofp11_match(msg
, NULL
, NULL
, &fs
->match
,
2902 &padded_match_len
)) {
2903 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply bad match");
2906 instructions_len
= length
- sizeof *ofs
- padded_match_len
;
2908 fs
->priority
= ntohs(ofs
->priority
);
2909 fs
->table_id
= ofs
->table_id
;
2910 fs
->duration_sec
= ntohl(ofs
->duration_sec
);
2911 fs
->duration_nsec
= ntohl(ofs
->duration_nsec
);
2912 fs
->idle_timeout
= ntohs(ofs
->idle_timeout
);
2913 fs
->hard_timeout
= ntohs(ofs
->hard_timeout
);
2914 if (oh
->version
>= OFP14_VERSION
) {
2915 fs
->importance
= ntohs(ofs
->importance
);
2919 if (raw
== OFPRAW_OFPST13_FLOW_REPLY
) {
2920 error
= ofputil_decode_flow_mod_flags(ofs
->flags
, -1, oh
->version
,
2930 fs
->cookie
= ofs
->cookie
;
2931 fs
->packet_count
= ntohll(ofs
->packet_count
);
2932 fs
->byte_count
= ntohll(ofs
->byte_count
);
2933 } else if (raw
== OFPRAW_OFPST10_FLOW_REPLY
) {
2934 const struct ofp10_flow_stats
*ofs
;
2937 ofs
= ofpbuf_try_pull(msg
, sizeof *ofs
);
2939 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply has %"PRIu32
" leftover "
2940 "bytes at end", msg
->size
);
2944 length
= ntohs(ofs
->length
);
2945 if (length
< sizeof *ofs
) {
2946 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply claims invalid "
2947 "length %"PRIuSIZE
, length
);
2950 instructions_len
= length
- sizeof *ofs
;
2952 fs
->cookie
= get_32aligned_be64(&ofs
->cookie
);
2953 ofputil_match_from_ofp10_match(&ofs
->match
, &fs
->match
);
2954 fs
->priority
= ntohs(ofs
->priority
);
2955 fs
->table_id
= ofs
->table_id
;
2956 fs
->duration_sec
= ntohl(ofs
->duration_sec
);
2957 fs
->duration_nsec
= ntohl(ofs
->duration_nsec
);
2958 fs
->idle_timeout
= ntohs(ofs
->idle_timeout
);
2959 fs
->hard_timeout
= ntohs(ofs
->hard_timeout
);
2963 fs
->packet_count
= ntohll(get_32aligned_be64(&ofs
->packet_count
));
2964 fs
->byte_count
= ntohll(get_32aligned_be64(&ofs
->byte_count
));
2966 } else if (raw
== OFPRAW_NXST_FLOW_REPLY
) {
2967 const struct nx_flow_stats
*nfs
;
2968 size_t match_len
, length
;
2970 nfs
= ofpbuf_try_pull(msg
, sizeof *nfs
);
2972 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW reply has %"PRIu32
" leftover "
2973 "bytes at end", msg
->size
);
2977 length
= ntohs(nfs
->length
);
2978 match_len
= ntohs(nfs
->match_len
);
2979 if (length
< sizeof *nfs
+ ROUND_UP(match_len
, 8)) {
2980 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW reply with match_len=%"PRIuSIZE
" "
2981 "claims invalid length %"PRIuSIZE
, match_len
, length
);
2984 if (nx_pull_match(msg
, match_len
, &fs
->match
, NULL
, NULL
, NULL
,
2988 instructions_len
= length
- sizeof *nfs
- ROUND_UP(match_len
, 8);
2990 fs
->cookie
= nfs
->cookie
;
2991 fs
->table_id
= nfs
->table_id
;
2992 fs
->duration_sec
= ntohl(nfs
->duration_sec
);
2993 fs
->duration_nsec
= ntohl(nfs
->duration_nsec
);
2994 fs
->priority
= ntohs(nfs
->priority
);
2995 fs
->idle_timeout
= ntohs(nfs
->idle_timeout
);
2996 fs
->hard_timeout
= ntohs(nfs
->hard_timeout
);
3000 if (flow_age_extension
) {
3001 if (nfs
->idle_age
) {
3002 fs
->idle_age
= ntohs(nfs
->idle_age
) - 1;
3004 if (nfs
->hard_age
) {
3005 fs
->hard_age
= ntohs(nfs
->hard_age
) - 1;
3008 fs
->packet_count
= ntohll(nfs
->packet_count
);
3009 fs
->byte_count
= ntohll(nfs
->byte_count
);
3015 if (ofpacts_pull_openflow_instructions(msg
, instructions_len
, oh
->version
,
3017 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply bad instructions");
3020 fs
->ofpacts
= ofpacts
->data
;
3021 fs
->ofpacts_len
= ofpacts
->size
;
3026 /* Returns 'count' unchanged except that UINT64_MAX becomes 0.
3028 * We use this in situations where OVS internally uses UINT64_MAX to mean
3029 * "value unknown" but OpenFlow 1.0 does not define any unknown value. */
3031 unknown_to_zero(uint64_t count
)
3033 return count
!= UINT64_MAX
? count
: 0;
3036 /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to
3037 * those already present in the list of ofpbufs in 'replies'. 'replies' should
3038 * have been initialized with ofpmp_init(). */
3040 ofputil_append_flow_stats_reply(const struct ofputil_flow_stats
*fs
,
3041 struct ovs_list
*replies
,
3042 const struct tun_table
*tun_table
)
3044 struct ofputil_flow_stats
*fs_
= CONST_CAST(struct ofputil_flow_stats
*,
3046 const struct tun_table
*orig_tun_table
;
3047 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
3048 size_t start_ofs
= reply
->size
;
3049 enum ofp_version version
= ofpmp_version(replies
);
3050 enum ofpraw raw
= ofpmp_decode_raw(replies
);
3052 orig_tun_table
= fs
->match
.flow
.tunnel
.metadata
.tab
;
3053 fs_
->match
.flow
.tunnel
.metadata
.tab
= tun_table
;
3055 if (raw
== OFPRAW_OFPST11_FLOW_REPLY
|| raw
== OFPRAW_OFPST13_FLOW_REPLY
) {
3056 struct ofp11_flow_stats
*ofs
;
3058 ofpbuf_put_uninit(reply
, sizeof *ofs
);
3059 oxm_put_match(reply
, &fs
->match
, version
);
3060 ofpacts_put_openflow_instructions(fs
->ofpacts
, fs
->ofpacts_len
, reply
,
3063 ofs
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *ofs
);
3064 ofs
->length
= htons(reply
->size
- start_ofs
);
3065 ofs
->table_id
= fs
->table_id
;
3067 ofs
->duration_sec
= htonl(fs
->duration_sec
);
3068 ofs
->duration_nsec
= htonl(fs
->duration_nsec
);
3069 ofs
->priority
= htons(fs
->priority
);
3070 ofs
->idle_timeout
= htons(fs
->idle_timeout
);
3071 ofs
->hard_timeout
= htons(fs
->hard_timeout
);
3072 if (version
>= OFP14_VERSION
) {
3073 ofs
->importance
= htons(fs
->importance
);
3075 ofs
->importance
= 0;
3077 if (raw
== OFPRAW_OFPST13_FLOW_REPLY
) {
3078 ofs
->flags
= ofputil_encode_flow_mod_flags(fs
->flags
, version
);
3082 memset(ofs
->pad2
, 0, sizeof ofs
->pad2
);
3083 ofs
->cookie
= fs
->cookie
;
3084 ofs
->packet_count
= htonll(unknown_to_zero(fs
->packet_count
));
3085 ofs
->byte_count
= htonll(unknown_to_zero(fs
->byte_count
));
3086 } else if (raw
== OFPRAW_OFPST10_FLOW_REPLY
) {
3087 struct ofp10_flow_stats
*ofs
;
3089 ofpbuf_put_uninit(reply
, sizeof *ofs
);
3090 ofpacts_put_openflow_actions(fs
->ofpacts
, fs
->ofpacts_len
, reply
,
3092 ofs
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *ofs
);
3093 ofs
->length
= htons(reply
->size
- start_ofs
);
3094 ofs
->table_id
= fs
->table_id
;
3096 ofputil_match_to_ofp10_match(&fs
->match
, &ofs
->match
);
3097 ofs
->duration_sec
= htonl(fs
->duration_sec
);
3098 ofs
->duration_nsec
= htonl(fs
->duration_nsec
);
3099 ofs
->priority
= htons(fs
->priority
);
3100 ofs
->idle_timeout
= htons(fs
->idle_timeout
);
3101 ofs
->hard_timeout
= htons(fs
->hard_timeout
);
3102 memset(ofs
->pad2
, 0, sizeof ofs
->pad2
);
3103 put_32aligned_be64(&ofs
->cookie
, fs
->cookie
);
3104 put_32aligned_be64(&ofs
->packet_count
,
3105 htonll(unknown_to_zero(fs
->packet_count
)));
3106 put_32aligned_be64(&ofs
->byte_count
,
3107 htonll(unknown_to_zero(fs
->byte_count
)));
3108 } else if (raw
== OFPRAW_NXST_FLOW_REPLY
) {
3109 struct nx_flow_stats
*nfs
;
3112 ofpbuf_put_uninit(reply
, sizeof *nfs
);
3113 match_len
= nx_put_match(reply
, &fs
->match
, 0, 0);
3114 ofpacts_put_openflow_actions(fs
->ofpacts
, fs
->ofpacts_len
, reply
,
3116 nfs
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *nfs
);
3117 nfs
->length
= htons(reply
->size
- start_ofs
);
3118 nfs
->table_id
= fs
->table_id
;
3120 nfs
->duration_sec
= htonl(fs
->duration_sec
);
3121 nfs
->duration_nsec
= htonl(fs
->duration_nsec
);
3122 nfs
->priority
= htons(fs
->priority
);
3123 nfs
->idle_timeout
= htons(fs
->idle_timeout
);
3124 nfs
->hard_timeout
= htons(fs
->hard_timeout
);
3125 nfs
->idle_age
= htons(fs
->idle_age
< 0 ? 0
3126 : fs
->idle_age
< UINT16_MAX
? fs
->idle_age
+ 1
3128 nfs
->hard_age
= htons(fs
->hard_age
< 0 ? 0
3129 : fs
->hard_age
< UINT16_MAX
? fs
->hard_age
+ 1
3131 nfs
->match_len
= htons(match_len
);
3132 nfs
->cookie
= fs
->cookie
;
3133 nfs
->packet_count
= htonll(fs
->packet_count
);
3134 nfs
->byte_count
= htonll(fs
->byte_count
);
3139 ofpmp_postappend(replies
, start_ofs
);
3140 fs_
->match
.flow
.tunnel
.metadata
.tab
= orig_tun_table
;
3143 /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or
3144 * NXST_AGGREGATE reply matching 'request', and returns the message. */
3146 ofputil_encode_aggregate_stats_reply(
3147 const struct ofputil_aggregate_stats
*stats
,
3148 const struct ofp_header
*request
)
3150 struct ofp_aggregate_stats_reply
*asr
;
3151 uint64_t packet_count
;
3152 uint64_t byte_count
;
3156 ofpraw_decode(&raw
, request
);
3157 if (raw
== OFPRAW_OFPST10_AGGREGATE_REQUEST
) {
3158 packet_count
= unknown_to_zero(stats
->packet_count
);
3159 byte_count
= unknown_to_zero(stats
->byte_count
);
3161 packet_count
= stats
->packet_count
;
3162 byte_count
= stats
->byte_count
;
3165 msg
= ofpraw_alloc_stats_reply(request
, 0);
3166 asr
= ofpbuf_put_zeros(msg
, sizeof *asr
);
3167 put_32aligned_be64(&asr
->packet_count
, htonll(packet_count
));
3168 put_32aligned_be64(&asr
->byte_count
, htonll(byte_count
));
3169 asr
->flow_count
= htonl(stats
->flow_count
);
3175 ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats
*stats
,
3176 const struct ofp_header
*reply
)
3178 struct ofpbuf msg
= ofpbuf_const_initializer(reply
, ntohs(reply
->length
));
3179 ofpraw_pull_assert(&msg
);
3181 struct ofp_aggregate_stats_reply
*asr
= msg
.msg
;
3182 stats
->packet_count
= ntohll(get_32aligned_be64(&asr
->packet_count
));
3183 stats
->byte_count
= ntohll(get_32aligned_be64(&asr
->byte_count
));
3184 stats
->flow_count
= ntohl(asr
->flow_count
);
3189 /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
3190 * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
3191 * an OpenFlow error code. */
3193 ofputil_decode_flow_removed(struct ofputil_flow_removed
*fr
,
3194 const struct ofp_header
*oh
)
3196 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
3197 enum ofpraw raw
= ofpraw_pull_assert(&b
);
3198 if (raw
== OFPRAW_OFPT11_FLOW_REMOVED
) {
3199 const struct ofp12_flow_removed
*ofr
;
3202 ofr
= ofpbuf_pull(&b
, sizeof *ofr
);
3204 error
= ofputil_pull_ofp11_match(&b
, NULL
, NULL
, &fr
->match
, NULL
);
3209 fr
->priority
= ntohs(ofr
->priority
);
3210 fr
->cookie
= ofr
->cookie
;
3211 fr
->reason
= ofr
->reason
;
3212 fr
->table_id
= ofr
->table_id
;
3213 fr
->duration_sec
= ntohl(ofr
->duration_sec
);
3214 fr
->duration_nsec
= ntohl(ofr
->duration_nsec
);
3215 fr
->idle_timeout
= ntohs(ofr
->idle_timeout
);
3216 fr
->hard_timeout
= ntohs(ofr
->hard_timeout
);
3217 fr
->packet_count
= ntohll(ofr
->packet_count
);
3218 fr
->byte_count
= ntohll(ofr
->byte_count
);
3219 } else if (raw
== OFPRAW_OFPT10_FLOW_REMOVED
) {
3220 const struct ofp10_flow_removed
*ofr
;
3222 ofr
= ofpbuf_pull(&b
, sizeof *ofr
);
3224 ofputil_match_from_ofp10_match(&ofr
->match
, &fr
->match
);
3225 fr
->priority
= ntohs(ofr
->priority
);
3226 fr
->cookie
= ofr
->cookie
;
3227 fr
->reason
= ofr
->reason
;
3229 fr
->duration_sec
= ntohl(ofr
->duration_sec
);
3230 fr
->duration_nsec
= ntohl(ofr
->duration_nsec
);
3231 fr
->idle_timeout
= ntohs(ofr
->idle_timeout
);
3232 fr
->hard_timeout
= 0;
3233 fr
->packet_count
= ntohll(ofr
->packet_count
);
3234 fr
->byte_count
= ntohll(ofr
->byte_count
);
3235 } else if (raw
== OFPRAW_NXT_FLOW_REMOVED
) {
3236 struct nx_flow_removed
*nfr
;
3239 nfr
= ofpbuf_pull(&b
, sizeof *nfr
);
3240 error
= nx_pull_match(&b
, ntohs(nfr
->match_len
), &fr
->match
, NULL
,
3246 return OFPERR_OFPBRC_BAD_LEN
;
3249 fr
->priority
= ntohs(nfr
->priority
);
3250 fr
->cookie
= nfr
->cookie
;
3251 fr
->reason
= nfr
->reason
;
3252 fr
->table_id
= nfr
->table_id
? nfr
->table_id
- 1 : 255;
3253 fr
->duration_sec
= ntohl(nfr
->duration_sec
);
3254 fr
->duration_nsec
= ntohl(nfr
->duration_nsec
);
3255 fr
->idle_timeout
= ntohs(nfr
->idle_timeout
);
3256 fr
->hard_timeout
= 0;
3257 fr
->packet_count
= ntohll(nfr
->packet_count
);
3258 fr
->byte_count
= ntohll(nfr
->byte_count
);
3266 /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or
3267 * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the
3270 ofputil_encode_flow_removed(const struct ofputil_flow_removed
*fr
,
3271 enum ofputil_protocol protocol
)
3274 enum ofp_flow_removed_reason reason
= fr
->reason
;
3276 if (reason
== OFPRR_METER_DELETE
&& !(protocol
& OFPUTIL_P_OF14_UP
)) {
3277 reason
= OFPRR_DELETE
;
3281 case OFPUTIL_P_OF11_STD
:
3282 case OFPUTIL_P_OF12_OXM
:
3283 case OFPUTIL_P_OF13_OXM
:
3284 case OFPUTIL_P_OF14_OXM
:
3285 case OFPUTIL_P_OF15_OXM
:
3286 case OFPUTIL_P_OF16_OXM
: {
3287 struct ofp12_flow_removed
*ofr
;
3289 msg
= ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED
,
3290 ofputil_protocol_to_ofp_version(protocol
),
3292 ofputil_match_typical_len(protocol
));
3293 ofr
= ofpbuf_put_zeros(msg
, sizeof *ofr
);
3294 ofr
->cookie
= fr
->cookie
;
3295 ofr
->priority
= htons(fr
->priority
);
3296 ofr
->reason
= reason
;
3297 ofr
->table_id
= fr
->table_id
;
3298 ofr
->duration_sec
= htonl(fr
->duration_sec
);
3299 ofr
->duration_nsec
= htonl(fr
->duration_nsec
);
3300 ofr
->idle_timeout
= htons(fr
->idle_timeout
);
3301 ofr
->hard_timeout
= htons(fr
->hard_timeout
);
3302 ofr
->packet_count
= htonll(fr
->packet_count
);
3303 ofr
->byte_count
= htonll(fr
->byte_count
);
3304 ofputil_put_ofp11_match(msg
, &fr
->match
, protocol
);
3308 case OFPUTIL_P_OF10_STD
:
3309 case OFPUTIL_P_OF10_STD_TID
: {
3310 struct ofp10_flow_removed
*ofr
;
3312 msg
= ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED
, OFP10_VERSION
,
3314 ofr
= ofpbuf_put_zeros(msg
, sizeof *ofr
);
3315 ofputil_match_to_ofp10_match(&fr
->match
, &ofr
->match
);
3316 ofr
->cookie
= fr
->cookie
;
3317 ofr
->priority
= htons(fr
->priority
);
3318 ofr
->reason
= reason
;
3319 ofr
->duration_sec
= htonl(fr
->duration_sec
);
3320 ofr
->duration_nsec
= htonl(fr
->duration_nsec
);
3321 ofr
->idle_timeout
= htons(fr
->idle_timeout
);
3322 ofr
->packet_count
= htonll(unknown_to_zero(fr
->packet_count
));
3323 ofr
->byte_count
= htonll(unknown_to_zero(fr
->byte_count
));
3327 case OFPUTIL_P_OF10_NXM
:
3328 case OFPUTIL_P_OF10_NXM_TID
: {
3329 struct nx_flow_removed
*nfr
;
3332 msg
= ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED
, OFP10_VERSION
,
3333 htonl(0), NXM_TYPICAL_LEN
);
3334 ofpbuf_put_zeros(msg
, sizeof *nfr
);
3335 match_len
= nx_put_match(msg
, &fr
->match
, 0, 0);
3338 nfr
->cookie
= fr
->cookie
;
3339 nfr
->priority
= htons(fr
->priority
);
3340 nfr
->reason
= reason
;
3341 nfr
->table_id
= fr
->table_id
+ 1;
3342 nfr
->duration_sec
= htonl(fr
->duration_sec
);
3343 nfr
->duration_nsec
= htonl(fr
->duration_nsec
);
3344 nfr
->idle_timeout
= htons(fr
->idle_timeout
);
3345 nfr
->match_len
= htons(match_len
);
3346 nfr
->packet_count
= htonll(fr
->packet_count
);
3347 nfr
->byte_count
= htonll(fr
->byte_count
);
3358 /* The caller has done basic initialization of '*pin'; the other output
3359 * arguments needs to be initialized. */
3361 decode_nx_packet_in2(const struct ofp_header
*oh
, bool loose
,
3362 const struct tun_table
*tun_table
,
3363 const struct vl_mff_map
*vl_mff_map
,
3364 struct ofputil_packet_in
*pin
,
3365 size_t *total_len
, uint32_t *buffer_id
,
3366 struct ofpbuf
*continuation
)
3369 *buffer_id
= UINT32_MAX
;
3371 struct ofpbuf properties
;
3372 ofpbuf_use_const(&properties
, oh
, ntohs(oh
->length
));
3373 ofpraw_pull_assert(&properties
);
3375 while (properties
.size
> 0) {
3376 struct ofpbuf payload
;
3379 enum ofperr error
= ofpprop_pull(&properties
, &payload
, &type
);
3386 pin
->packet
= payload
.msg
;
3387 pin
->packet_len
= ofpbuf_msgsize(&payload
);
3390 case NXPINT_FULL_LEN
: {
3392 error
= ofpprop_parse_u32(&payload
, &u32
);
3397 case NXPINT_BUFFER_ID
:
3398 error
= ofpprop_parse_u32(&payload
, buffer_id
);
3401 case NXPINT_TABLE_ID
:
3402 error
= ofpprop_parse_u8(&payload
, &pin
->table_id
);
3406 error
= ofpprop_parse_be64(&payload
, &pin
->cookie
);
3409 case NXPINT_REASON
: {
3411 error
= ofpprop_parse_u8(&payload
, &reason
);
3412 pin
->reason
= reason
;
3416 case NXPINT_METADATA
:
3417 error
= oxm_decode_match(payload
.msg
, ofpbuf_msgsize(&payload
),
3418 loose
, tun_table
, vl_mff_map
,
3419 &pin
->flow_metadata
);
3422 case NXPINT_USERDATA
:
3423 pin
->userdata
= payload
.msg
;
3424 pin
->userdata_len
= ofpbuf_msgsize(&payload
);
3427 case NXPINT_CONTINUATION
:
3429 error
= ofpprop_parse_nested(&payload
, continuation
);
3434 error
= OFPPROP_UNKNOWN(loose
, "NX_PACKET_IN2", type
);
3442 if (!pin
->packet_len
) {
3443 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXT_PACKET_IN2 lacks packet");
3444 return OFPERR_OFPBRC_BAD_LEN
;
3445 } else if (!*total_len
) {
3446 *total_len
= pin
->packet_len
;
3447 } else if (*total_len
< pin
->packet_len
) {
3448 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXT_PACKET_IN2 claimed full_len < len");
3449 return OFPERR_OFPBRC_BAD_LEN
;
3455 /* Decodes the packet-in message starting at 'oh' into '*pin'. Populates
3456 * 'pin->packet' and 'pin->packet_len' with the part of the packet actually
3457 * included in the message. If 'total_lenp' is nonnull, populates
3458 * '*total_lenp' with the original length of the packet (which is larger than
3459 * 'packet->len' if only part of the packet was included). If 'buffer_idp' is
3460 * nonnull, stores the packet's buffer ID in '*buffer_idp' (UINT32_MAX if it
3461 * was not buffered).
3463 * Populates 'continuation', if nonnull, with the continuation data from the
3464 * packet-in (an empty buffer, if 'oh' did not contain continuation data). The
3465 * format of this data is supposed to be opaque to anything other than
3466 * ovs-vswitchd, so that in any other process the only reasonable use of this
3467 * data is to be copied into an NXT_RESUME message via ofputil_encode_resume().
3469 * This function points 'pin->packet' into 'oh', so the caller should not free
3470 * it separately from the original OpenFlow message. This is also true for
3471 * 'pin->userdata' (which could also end up NULL if there is no userdata).
3473 * 'vl_mff_map' is an optional parameter that is used to validate the length
3474 * of variable length mf_fields in 'match'. If it is not provided, the
3475 * default mf_fields with maximum length will be used.
3477 * Returns 0 if successful, otherwise an OpenFlow error code. */
3479 ofputil_decode_packet_in(const struct ofp_header
*oh
, bool loose
,
3480 const struct tun_table
*tun_table
,
3481 const struct vl_mff_map
*vl_mff_map
,
3482 struct ofputil_packet_in
*pin
,
3483 size_t *total_lenp
, uint32_t *buffer_idp
,
3484 struct ofpbuf
*continuation
)
3489 memset(pin
, 0, sizeof *pin
);
3490 pin
->cookie
= OVS_BE64_MAX
;
3492 ofpbuf_use_const(continuation
, NULL
, 0);
3495 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
3496 enum ofpraw raw
= ofpraw_pull_assert(&b
);
3497 if (raw
== OFPRAW_OFPT13_PACKET_IN
|| raw
== OFPRAW_OFPT12_PACKET_IN
) {
3498 const struct ofp12_packet_in
*opi
= ofpbuf_pull(&b
, sizeof *opi
);
3499 const ovs_be64
*cookie
= (raw
== OFPRAW_OFPT13_PACKET_IN
3500 ? ofpbuf_pull(&b
, sizeof *cookie
)
3502 enum ofperr error
= oxm_pull_match_loose(&b
, tun_table
,
3503 &pin
->flow_metadata
);
3508 if (!ofpbuf_try_pull(&b
, 2)) {
3509 return OFPERR_OFPBRC_BAD_LEN
;
3512 pin
->reason
= opi
->reason
;
3513 pin
->table_id
= opi
->table_id
;
3514 buffer_id
= ntohl(opi
->buffer_id
);
3515 total_len
= ntohs(opi
->total_len
);
3517 pin
->cookie
= *cookie
;
3520 pin
->packet
= b
.data
;
3521 pin
->packet_len
= b
.size
;
3522 } else if (raw
== OFPRAW_OFPT10_PACKET_IN
) {
3523 const struct ofp10_packet_in
*opi
;
3525 opi
= ofpbuf_pull(&b
, offsetof(struct ofp10_packet_in
, data
));
3527 pin
->packet
= CONST_CAST(uint8_t *, opi
->data
);
3528 pin
->packet_len
= b
.size
;
3530 match_init_catchall(&pin
->flow_metadata
);
3531 match_set_in_port(&pin
->flow_metadata
,
3532 u16_to_ofp(ntohs(opi
->in_port
)));
3533 pin
->reason
= opi
->reason
;
3534 buffer_id
= ntohl(opi
->buffer_id
);
3535 total_len
= ntohs(opi
->total_len
);
3536 } else if (raw
== OFPRAW_OFPT11_PACKET_IN
) {
3537 const struct ofp11_packet_in
*opi
;
3541 opi
= ofpbuf_pull(&b
, sizeof *opi
);
3543 pin
->packet
= b
.data
;
3544 pin
->packet_len
= b
.size
;
3546 buffer_id
= ntohl(opi
->buffer_id
);
3547 error
= ofputil_port_from_ofp11(opi
->in_port
, &in_port
);
3551 match_init_catchall(&pin
->flow_metadata
);
3552 match_set_in_port(&pin
->flow_metadata
, in_port
);
3553 total_len
= ntohs(opi
->total_len
);
3554 pin
->reason
= opi
->reason
;
3555 pin
->table_id
= opi
->table_id
;
3556 } else if (raw
== OFPRAW_NXT_PACKET_IN
) {
3557 const struct nx_packet_in
*npi
;
3560 npi
= ofpbuf_pull(&b
, sizeof *npi
);
3561 error
= nx_pull_match_loose(&b
, ntohs(npi
->match_len
),
3562 &pin
->flow_metadata
, NULL
, NULL
, NULL
);
3567 if (!ofpbuf_try_pull(&b
, 2)) {
3568 return OFPERR_OFPBRC_BAD_LEN
;
3571 pin
->reason
= npi
->reason
;
3572 pin
->table_id
= npi
->table_id
;
3573 pin
->cookie
= npi
->cookie
;
3575 buffer_id
= ntohl(npi
->buffer_id
);
3576 total_len
= ntohs(npi
->total_len
);
3578 pin
->packet
= b
.data
;
3579 pin
->packet_len
= b
.size
;
3580 } else if (raw
== OFPRAW_NXT_PACKET_IN2
|| raw
== OFPRAW_NXT_RESUME
) {
3581 enum ofperr error
= decode_nx_packet_in2(oh
, loose
, tun_table
,
3582 vl_mff_map
, pin
, &total_len
,
3583 &buffer_id
, continuation
);
3592 *total_lenp
= total_len
;
3595 *buffer_idp
= buffer_id
;
3602 encode_packet_in_reason(enum ofp_packet_in_reason reason
,
3603 enum ofp_version version
)
3608 case OFPR_INVALID_TTL
:
3611 case OFPR_ACTION_SET
:
3613 case OFPR_PACKET_OUT
:
3614 return version
< OFP14_VERSION
? OFPR_ACTION
: reason
;
3616 case OFPR_EXPLICIT_MISS
:
3617 return version
< OFP13_VERSION
? OFPR_ACTION
: OFPR_NO_MATCH
;
3619 case OFPR_IMPLICIT_MISS
:
3620 return OFPR_NO_MATCH
;
3622 case OFPR_N_REASONS
:
3628 /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this
3629 * function omits it. The caller can add it itself if desired. */
3631 ofputil_put_packet_in(const struct ofputil_packet_in
*pin
,
3632 enum ofp_version version
, size_t include_bytes
,
3635 /* Add packet properties. */
3636 ofpprop_put(msg
, NXPINT_PACKET
, pin
->packet
, include_bytes
);
3637 if (include_bytes
!= pin
->packet_len
) {
3638 ofpprop_put_u32(msg
, NXPINT_FULL_LEN
, pin
->packet_len
);
3641 /* Add flow properties. */
3642 ofpprop_put_u8(msg
, NXPINT_TABLE_ID
, pin
->table_id
);
3643 if (pin
->cookie
!= OVS_BE64_MAX
) {
3644 ofpprop_put_be64(msg
, NXPINT_COOKIE
, pin
->cookie
);
3647 /* Add other properties. */
3648 ofpprop_put_u8(msg
, NXPINT_REASON
,
3649 encode_packet_in_reason(pin
->reason
, version
));
3651 size_t start
= ofpprop_start(msg
, NXPINT_METADATA
);
3652 oxm_put_raw(msg
, &pin
->flow_metadata
, version
);
3653 ofpprop_end(msg
, start
);
3657 put_actions_property(struct ofpbuf
*msg
, uint64_t prop_type
,
3658 enum ofp_version version
,
3659 const struct ofpact
*actions
, size_t actions_len
)
3662 size_t start
= ofpprop_start_nested(msg
, prop_type
);
3663 ofpacts_put_openflow_actions(actions
, actions_len
, msg
, version
);
3664 ofpprop_end(msg
, start
);
3668 enum nx_continuation_prop_type
{
3669 NXCPT_BRIDGE
= 0x8000,
3679 /* Only NXT_PACKET_IN2 (not NXT_RESUME) should include NXCPT_USERDATA, so this
3680 * function omits it. The caller can add it itself if desired. */
3682 ofputil_put_packet_in_private(const struct ofputil_packet_in_private
*pin
,
3683 enum ofp_version version
, size_t include_bytes
,
3686 ofputil_put_packet_in(&pin
->public, version
, include_bytes
, msg
);
3688 size_t continuation_ofs
= ofpprop_start_nested(msg
, NXPINT_CONTINUATION
);
3689 size_t inner_ofs
= msg
->size
;
3691 if (!uuid_is_zero(&pin
->bridge
)) {
3692 ofpprop_put_uuid(msg
, NXCPT_BRIDGE
, &pin
->bridge
);
3695 struct ofpbuf pin_stack
;
3696 ofpbuf_use_const(&pin_stack
, pin
->stack
, pin
->stack_size
);
3698 while (pin_stack
.size
) {
3700 uint8_t *val
= nx_stack_pop(&pin_stack
, &len
);
3701 ofpprop_put(msg
, NXCPT_STACK
, val
, len
);
3705 ofpprop_put_u32(msg
, NXCPT_MIRRORS
, pin
->mirrors
);
3708 if (pin
->conntracked
) {
3709 ofpprop_put_flag(msg
, NXCPT_CONNTRACKED
);
3712 if (pin
->actions_len
) {
3713 /* Divide 'pin->actions' into groups that begins with an
3714 * unroll_xlate action. For each group, emit a NXCPT_TABLE_ID and
3715 * NXCPT_COOKIE property (if either has changed; each is initially
3716 * assumed 0), then a NXCPT_ACTIONS property with the grouped
3719 * The alternative is to make OFPACT_UNROLL_XLATE public. We can
3720 * always do that later, since this is a private property. */
3721 const struct ofpact
*const end
= ofpact_end(pin
->actions
,
3723 const struct ofpact_unroll_xlate
*unroll
= NULL
;
3724 uint8_t table_id
= 0;
3725 ovs_be64 cookie
= 0;
3727 const struct ofpact
*a
;
3728 for (a
= pin
->actions
; ; a
= ofpact_next(a
)) {
3729 if (a
== end
|| a
->type
== OFPACT_UNROLL_XLATE
) {
3731 if (table_id
!= unroll
->rule_table_id
) {
3732 ofpprop_put_u8(msg
, NXCPT_TABLE_ID
,
3733 unroll
->rule_table_id
);
3734 table_id
= unroll
->rule_table_id
;
3736 if (cookie
!= unroll
->rule_cookie
) {
3737 ofpprop_put_be64(msg
, NXCPT_COOKIE
,
3738 unroll
->rule_cookie
);
3739 cookie
= unroll
->rule_cookie
;
3743 const struct ofpact
*start
3744 = unroll
? ofpact_next(&unroll
->ofpact
) : pin
->actions
;
3745 put_actions_property(msg
, NXCPT_ACTIONS
, version
,
3746 start
, (a
- start
) * sizeof *a
);
3751 unroll
= ofpact_get_UNROLL_XLATE(a
);
3756 if (pin
->action_set_len
) {
3757 size_t start
= ofpprop_start_nested(msg
, NXCPT_ACTION_SET
);
3758 ofpacts_put_openflow_actions(pin
->action_set
,
3759 pin
->action_set_len
, msg
, version
);
3760 ofpprop_end(msg
, start
);
3763 if (msg
->size
> inner_ofs
) {
3764 ofpprop_end(msg
, continuation_ofs
);
3766 msg
->size
= continuation_ofs
;
3770 static struct ofpbuf
*
3771 ofputil_encode_ofp10_packet_in(const struct ofputil_packet_in
*pin
)
3773 struct ofp10_packet_in
*opi
;
3776 msg
= ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN
, OFP10_VERSION
,
3777 htonl(0), pin
->packet_len
);
3778 opi
= ofpbuf_put_zeros(msg
, offsetof(struct ofp10_packet_in
, data
));
3779 opi
->total_len
= htons(pin
->packet_len
);
3780 opi
->in_port
= htons(ofp_to_u16(pin
->flow_metadata
.flow
.in_port
.ofp_port
));
3781 opi
->reason
= encode_packet_in_reason(pin
->reason
, OFP10_VERSION
);
3782 opi
->buffer_id
= htonl(UINT32_MAX
);
3787 static struct ofpbuf
*
3788 ofputil_encode_nx_packet_in(const struct ofputil_packet_in
*pin
,
3789 enum ofp_version version
)
3791 struct nx_packet_in
*npi
;
3795 /* The final argument is just an estimate of the space required. */
3796 msg
= ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN
, version
,
3797 htonl(0), NXM_TYPICAL_LEN
+ 2 + pin
->packet_len
);
3798 ofpbuf_put_zeros(msg
, sizeof *npi
);
3799 match_len
= nx_put_match(msg
, &pin
->flow_metadata
, 0, 0);
3800 ofpbuf_put_zeros(msg
, 2);
3803 npi
->buffer_id
= htonl(UINT32_MAX
);
3804 npi
->total_len
= htons(pin
->packet_len
);
3805 npi
->reason
= encode_packet_in_reason(pin
->reason
, version
);
3806 npi
->table_id
= pin
->table_id
;
3807 npi
->cookie
= pin
->cookie
;
3808 npi
->match_len
= htons(match_len
);
3813 static struct ofpbuf
*
3814 ofputil_encode_nx_packet_in2(const struct ofputil_packet_in_private
*pin
,
3815 enum ofp_version version
, size_t include_bytes
)
3817 /* 'extra' is just an estimate of the space required. */
3818 size_t extra
= (pin
->public.packet_len
3819 + NXM_TYPICAL_LEN
/* flow_metadata */
3820 + pin
->stack_size
* 4
3822 + pin
->action_set_len
3823 + 256); /* fudge factor */
3824 struct ofpbuf
*msg
= ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN2
, version
,
3827 ofputil_put_packet_in_private(pin
, version
, include_bytes
, msg
);
3828 if (pin
->public.userdata_len
) {
3829 ofpprop_put(msg
, NXPINT_USERDATA
, pin
->public.userdata
,
3830 pin
->public.userdata_len
);
3833 ofpmsg_update_length(msg
);
3837 static struct ofpbuf
*
3838 ofputil_encode_ofp11_packet_in(const struct ofputil_packet_in
*pin
)
3840 struct ofp11_packet_in
*opi
;
3843 msg
= ofpraw_alloc_xid(OFPRAW_OFPT11_PACKET_IN
, OFP11_VERSION
,
3844 htonl(0), pin
->packet_len
);
3845 opi
= ofpbuf_put_zeros(msg
, sizeof *opi
);
3846 opi
->buffer_id
= htonl(UINT32_MAX
);
3847 opi
->in_port
= ofputil_port_to_ofp11(
3848 pin
->flow_metadata
.flow
.in_port
.ofp_port
);
3849 opi
->in_phy_port
= opi
->in_port
;
3850 opi
->total_len
= htons(pin
->packet_len
);
3851 opi
->reason
= encode_packet_in_reason(pin
->reason
, OFP11_VERSION
);
3852 opi
->table_id
= pin
->table_id
;
3857 static struct ofpbuf
*
3858 ofputil_encode_ofp12_packet_in(const struct ofputil_packet_in
*pin
,
3859 enum ofp_version version
)
3861 enum ofpraw raw
= (version
>= OFP13_VERSION
3862 ? OFPRAW_OFPT13_PACKET_IN
3863 : OFPRAW_OFPT12_PACKET_IN
);
3866 /* The final argument is just an estimate of the space required. */
3867 msg
= ofpraw_alloc_xid(raw
, version
,
3868 htonl(0), NXM_TYPICAL_LEN
+ 2 + pin
->packet_len
);
3870 struct ofp12_packet_in
*opi
= ofpbuf_put_zeros(msg
, sizeof *opi
);
3871 opi
->buffer_id
= htonl(UINT32_MAX
);
3872 opi
->total_len
= htons(pin
->packet_len
);
3873 opi
->reason
= encode_packet_in_reason(pin
->reason
, version
);
3874 opi
->table_id
= pin
->table_id
;
3876 if (version
>= OFP13_VERSION
) {
3877 ovs_be64 cookie
= pin
->cookie
;
3878 ofpbuf_put(msg
, &cookie
, sizeof cookie
);
3881 oxm_put_match(msg
, &pin
->flow_metadata
, version
);
3882 ofpbuf_put_zeros(msg
, 2);
3887 /* Converts abstract ofputil_packet_in_private 'pin' into a PACKET_IN message
3888 * for 'protocol', using the packet-in format specified by 'packet_in_format'.
3890 * This function is really meant only for use by ovs-vswitchd. To any other
3891 * code, the "continuation" data, i.e. the data that is in struct
3892 * ofputil_packet_in_private but not in struct ofputil_packet_in, is supposed
3893 * to be opaque (and it might change from one OVS version to another). Thus,
3894 * if any other code wants to encode a packet-in, it should use a non-"private"
3895 * version of this function. (Such a version doesn't currently exist because
3896 * only ovs-vswitchd currently wants to encode packet-ins. If you need one,
3899 ofputil_encode_packet_in_private(const struct ofputil_packet_in_private
*pin
,
3900 enum ofputil_protocol protocol
,
3901 enum nx_packet_in_format packet_in_format
)
3903 enum ofp_version version
= ofputil_protocol_to_ofp_version(protocol
);
3906 switch (packet_in_format
) {
3907 case NXPIF_STANDARD
:
3909 case OFPUTIL_P_OF10_STD
:
3910 case OFPUTIL_P_OF10_STD_TID
:
3911 case OFPUTIL_P_OF10_NXM
:
3912 case OFPUTIL_P_OF10_NXM_TID
:
3913 msg
= ofputil_encode_ofp10_packet_in(&pin
->public);
3916 case OFPUTIL_P_OF11_STD
:
3917 msg
= ofputil_encode_ofp11_packet_in(&pin
->public);
3920 case OFPUTIL_P_OF12_OXM
:
3921 case OFPUTIL_P_OF13_OXM
:
3922 case OFPUTIL_P_OF14_OXM
:
3923 case OFPUTIL_P_OF15_OXM
:
3924 case OFPUTIL_P_OF16_OXM
:
3925 msg
= ofputil_encode_ofp12_packet_in(&pin
->public, version
);
3933 case NXPIF_NXT_PACKET_IN
:
3934 msg
= ofputil_encode_nx_packet_in(&pin
->public, version
);
3937 case NXPIF_NXT_PACKET_IN2
:
3938 return ofputil_encode_nx_packet_in2(pin
, version
,
3939 pin
->public.packet_len
);
3945 ofpbuf_put(msg
, pin
->public.packet
, pin
->public.packet_len
);
3946 ofpmsg_update_length(msg
);
3950 /* Returns a string form of 'reason'. The return value is either a statically
3951 * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'.
3952 * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */
3954 ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason
,
3955 char *reasonbuf
, size_t bufsize
)
3962 case OFPR_INVALID_TTL
:
3963 return "invalid_ttl";
3964 case OFPR_ACTION_SET
:
3965 return "action_set";
3968 case OFPR_PACKET_OUT
:
3969 return "packet_out";
3970 case OFPR_EXPLICIT_MISS
:
3971 case OFPR_IMPLICIT_MISS
:
3974 case OFPR_N_REASONS
:
3976 snprintf(reasonbuf
, bufsize
, "%d", (int) reason
);
3982 ofputil_packet_in_reason_from_string(const char *s
,
3983 enum ofp_packet_in_reason
*reason
)
3987 for (i
= 0; i
< OFPR_N_REASONS
; i
++) {
3988 char reasonbuf
[OFPUTIL_PACKET_IN_REASON_BUFSIZE
];
3989 const char *reason_s
;
3991 reason_s
= ofputil_packet_in_reason_to_string(i
, reasonbuf
,
3993 if (!strcasecmp(s
, reason_s
)) {
4001 /* Returns a newly allocated NXT_RESUME message for 'pin', with the given
4002 * 'continuation', for 'protocol'. This message is suitable for resuming the
4003 * pipeline traveral of the packet represented by 'pin', if sent to the switch
4004 * from which 'pin' was received. */
4006 ofputil_encode_resume(const struct ofputil_packet_in
*pin
,
4007 const struct ofpbuf
*continuation
,
4008 enum ofputil_protocol protocol
)
4010 enum ofp_version version
= ofputil_protocol_to_ofp_version(protocol
);
4011 size_t extra
= pin
->packet_len
+ NXM_TYPICAL_LEN
+ continuation
->size
;
4012 struct ofpbuf
*msg
= ofpraw_alloc_xid(OFPRAW_NXT_RESUME
, version
,
4014 ofputil_put_packet_in(pin
, version
, pin
->packet_len
, msg
);
4015 ofpprop_put_nested(msg
, NXPINT_CONTINUATION
, continuation
);
4016 ofpmsg_update_length(msg
);
4021 parse_stack_prop(const struct ofpbuf
*property
, struct ofpbuf
*stack
)
4023 unsigned int len
= ofpbuf_msgsize(property
);
4024 if (len
> sizeof(union mf_subvalue
)) {
4025 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXCPT_STACK property has bad length %u",
4027 return OFPERR_OFPBPC_BAD_LEN
;
4029 nx_stack_push_bottom(stack
, property
->msg
, len
);
4034 parse_actions_property(struct ofpbuf
*property
, enum ofp_version version
,
4035 struct ofpbuf
*ofpacts
)
4037 if (!ofpbuf_try_pull(property
, ROUND_UP(ofpbuf_headersize(property
), 8))) {
4038 VLOG_WARN_RL(&bad_ofmsg_rl
, "actions property has bad length %"PRIu32
,
4040 return OFPERR_OFPBPC_BAD_LEN
;
4043 return ofpacts_pull_openflow_actions(property
, property
->size
,
4044 version
, NULL
, ofpacts
);
4047 /* This is like ofputil_decode_packet_in(), except that it decodes the
4048 * continuation data into 'pin'. The format of this data is supposed to be
4049 * opaque to any process other than ovs-vswitchd, so this function should not
4050 * be used outside ovs-vswitchd.
4052 * 'vl_mff_map' is an optional parameter that is used to validate the length
4053 * of variable length mf_fields in 'match'. If it is not provided, the
4054 * default mf_fields with maximum length will be used.
4056 * When successful, 'pin' contains some dynamically allocated data. Call
4057 * ofputil_packet_in_private_destroy() to free this data. */
4059 ofputil_decode_packet_in_private(const struct ofp_header
*oh
, bool loose
,
4060 const struct tun_table
*tun_table
,
4061 const struct vl_mff_map
*vl_mff_map
,
4062 struct ofputil_packet_in_private
*pin
,
4063 size_t *total_len
, uint32_t *buffer_id
)
4065 memset(pin
, 0, sizeof *pin
);
4067 struct ofpbuf continuation
;
4069 error
= ofputil_decode_packet_in(oh
, loose
, tun_table
, vl_mff_map
,
4070 &pin
->public, total_len
, buffer_id
,
4076 struct ofpbuf actions
, action_set
;
4077 ofpbuf_init(&actions
, 0);
4078 ofpbuf_init(&action_set
, 0);
4080 uint8_t table_id
= 0;
4081 ovs_be64 cookie
= 0;
4083 struct ofpbuf stack
;
4084 ofpbuf_init(&stack
, 0);
4086 while (continuation
.size
> 0) {
4087 struct ofpbuf payload
;
4090 error
= ofpprop_pull(&continuation
, &payload
, &type
);
4097 error
= ofpprop_parse_uuid(&payload
, &pin
->bridge
);
4101 error
= parse_stack_prop(&payload
, &stack
);
4105 error
= ofpprop_parse_u32(&payload
, &pin
->mirrors
);
4108 case NXCPT_CONNTRACKED
:
4109 pin
->conntracked
= true;
4112 case NXCPT_TABLE_ID
:
4113 error
= ofpprop_parse_u8(&payload
, &table_id
);
4117 error
= ofpprop_parse_be64(&payload
, &cookie
);
4120 case NXCPT_ACTIONS
: {
4121 struct ofpact_unroll_xlate
*unroll
4122 = ofpact_put_UNROLL_XLATE(&actions
);
4123 unroll
->rule_table_id
= table_id
;
4124 unroll
->rule_cookie
= cookie
;
4125 error
= parse_actions_property(&payload
, oh
->version
, &actions
);
4129 case NXCPT_ACTION_SET
:
4130 error
= parse_actions_property(&payload
, oh
->version
, &action_set
);
4134 error
= OFPPROP_UNKNOWN(loose
, "continuation", type
);
4142 pin
->actions_len
= actions
.size
;
4143 pin
->actions
= ofpbuf_steal_data(&actions
);
4144 pin
->action_set_len
= action_set
.size
;
4145 pin
->action_set
= ofpbuf_steal_data(&action_set
);
4146 pin
->stack_size
= stack
.size
;
4147 pin
->stack
= ofpbuf_steal_data(&stack
);
4150 ofputil_packet_in_private_destroy(pin
);
4156 /* Frees data in 'pin' that is dynamically allocated by
4157 * ofputil_decode_packet_in_private().
4159 * 'pin->public' contains some pointer members that
4160 * ofputil_decode_packet_in_private() doesn't initialize to newly allocated
4161 * data, so this function doesn't free those. */
4163 ofputil_packet_in_private_destroy(struct ofputil_packet_in_private
*pin
)
4168 free(pin
->action_set
);
4172 /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in
4175 * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out
4176 * message's actions. The caller must initialize 'ofpacts' and retains
4177 * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer.
4179 * 'po->packet' refers to the packet data in 'oh', so the buffer containing
4180 * 'oh' must not be destroyed while 'po' is being used.
4182 * Returns 0 if successful, otherwise an OFPERR_* value. */
4184 ofputil_decode_packet_out(struct ofputil_packet_out
*po
,
4185 const struct ofp_header
*oh
,
4186 struct ofpbuf
*ofpacts
)
4188 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
4189 enum ofpraw raw
= ofpraw_pull_assert(&b
);
4191 ofpbuf_clear(ofpacts
);
4192 if (raw
== OFPRAW_OFPT11_PACKET_OUT
) {
4194 const struct ofp11_packet_out
*opo
= ofpbuf_pull(&b
, sizeof *opo
);
4196 po
->buffer_id
= ntohl(opo
->buffer_id
);
4197 error
= ofputil_port_from_ofp11(opo
->in_port
, &po
->in_port
);
4202 error
= ofpacts_pull_openflow_actions(&b
, ntohs(opo
->actions_len
),
4203 oh
->version
, NULL
, ofpacts
);
4207 } else if (raw
== OFPRAW_OFPT10_PACKET_OUT
) {
4209 const struct ofp10_packet_out
*opo
= ofpbuf_pull(&b
, sizeof *opo
);
4211 po
->buffer_id
= ntohl(opo
->buffer_id
);
4212 po
->in_port
= u16_to_ofp(ntohs(opo
->in_port
));
4214 error
= ofpacts_pull_openflow_actions(&b
, ntohs(opo
->actions_len
),
4215 oh
->version
, NULL
, ofpacts
);
4223 if (ofp_to_u16(po
->in_port
) >= ofp_to_u16(OFPP_MAX
)
4224 && po
->in_port
!= OFPP_LOCAL
4225 && po
->in_port
!= OFPP_NONE
&& po
->in_port
!= OFPP_CONTROLLER
) {
4226 VLOG_WARN_RL(&bad_ofmsg_rl
, "packet-out has bad input port %#"PRIx32
,
4228 return OFPERR_OFPBRC_BAD_PORT
;
4231 po
->ofpacts
= ofpacts
->data
;
4232 po
->ofpacts_len
= ofpacts
->size
;
4234 if (po
->buffer_id
== UINT32_MAX
) {
4235 po
->packet
= b
.data
;
4236 po
->packet_len
= b
.size
;
4245 /* ofputil_phy_port */
4247 /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
4248 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD
== OFPPF_10MB_HD
); /* bit 0 */
4249 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD
== OFPPF_10MB_FD
); /* bit 1 */
4250 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD
== OFPPF_100MB_HD
); /* bit 2 */
4251 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD
== OFPPF_100MB_FD
); /* bit 3 */
4252 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD
== OFPPF_1GB_HD
); /* bit 4 */
4253 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD
== OFPPF_1GB_FD
); /* bit 5 */
4254 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD
== OFPPF_10GB_FD
); /* bit 6 */
4256 /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
4257 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER
== (OFPPF10_COPPER
<< 4));
4258 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER
== (OFPPF10_FIBER
<< 4));
4259 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG
== (OFPPF10_AUTONEG
<< 4));
4260 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE
== (OFPPF10_PAUSE
<< 4));
4261 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM
== (OFPPF10_PAUSE_ASYM
<< 4));
4263 static enum netdev_features
4264 netdev_port_features_from_ofp10(ovs_be32 ofp10_
)
4266 uint32_t ofp10
= ntohl(ofp10_
);
4267 return (ofp10
& 0x7f) | ((ofp10
& 0xf80) << 4);
4271 netdev_port_features_to_ofp10(enum netdev_features features
)
4273 return htonl((features
& 0x7f) | ((features
& 0xf800) >> 4));
4276 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD
== OFPPF_10MB_HD
); /* bit 0 */
4277 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD
== OFPPF_10MB_FD
); /* bit 1 */
4278 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD
== OFPPF_100MB_HD
); /* bit 2 */
4279 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD
== OFPPF_100MB_FD
); /* bit 3 */
4280 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD
== OFPPF_1GB_HD
); /* bit 4 */
4281 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD
== OFPPF_1GB_FD
); /* bit 5 */
4282 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD
== OFPPF_10GB_FD
); /* bit 6 */
4283 BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD
== OFPPF11_40GB_FD
); /* bit 7 */
4284 BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD
== OFPPF11_100GB_FD
); /* bit 8 */
4285 BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD
== OFPPF11_1TB_FD
); /* bit 9 */
4286 BUILD_ASSERT_DECL((int) NETDEV_F_OTHER
== OFPPF11_OTHER
); /* bit 10 */
4287 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER
== OFPPF11_COPPER
); /* bit 11 */
4288 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER
== OFPPF11_FIBER
); /* bit 12 */
4289 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG
== OFPPF11_AUTONEG
); /* bit 13 */
4290 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE
== OFPPF11_PAUSE
); /* bit 14 */
4291 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM
== OFPPF11_PAUSE_ASYM
);/* bit 15 */
4293 static enum netdev_features
4294 netdev_port_features_from_ofp11(ovs_be32 ofp11
)
4296 return ntohl(ofp11
) & 0xffff;
4300 netdev_port_features_to_ofp11(enum netdev_features features
)
4302 return htonl(features
& 0xffff);
4306 ofputil_decode_ofp10_phy_port(struct ofputil_phy_port
*pp
,
4307 const struct ofp10_phy_port
*opp
)
4309 pp
->port_no
= u16_to_ofp(ntohs(opp
->port_no
));
4310 pp
->hw_addr
= opp
->hw_addr
;
4311 ovs_strlcpy(pp
->name
, opp
->name
, OFP_MAX_PORT_NAME_LEN
);
4313 pp
->config
= ntohl(opp
->config
) & OFPPC10_ALL
;
4314 pp
->state
= ntohl(opp
->state
) & OFPPS10_ALL
;
4316 pp
->curr
= netdev_port_features_from_ofp10(opp
->curr
);
4317 pp
->advertised
= netdev_port_features_from_ofp10(opp
->advertised
);
4318 pp
->supported
= netdev_port_features_from_ofp10(opp
->supported
);
4319 pp
->peer
= netdev_port_features_from_ofp10(opp
->peer
);
4321 pp
->curr_speed
= netdev_features_to_bps(pp
->curr
, 0) / 1000;
4322 pp
->max_speed
= netdev_features_to_bps(pp
->supported
, 0) / 1000;
4328 ofputil_decode_ofp11_port(struct ofputil_phy_port
*pp
,
4329 const struct ofp11_port
*op
)
4333 error
= ofputil_port_from_ofp11(op
->port_no
, &pp
->port_no
);
4337 pp
->hw_addr
= op
->hw_addr
;
4338 ovs_strlcpy(pp
->name
, op
->name
, OFP_MAX_PORT_NAME_LEN
);
4340 pp
->config
= ntohl(op
->config
) & OFPPC11_ALL
;
4341 pp
->state
= ntohl(op
->state
) & OFPPS11_ALL
;
4343 pp
->curr
= netdev_port_features_from_ofp11(op
->curr
);
4344 pp
->advertised
= netdev_port_features_from_ofp11(op
->advertised
);
4345 pp
->supported
= netdev_port_features_from_ofp11(op
->supported
);
4346 pp
->peer
= netdev_port_features_from_ofp11(op
->peer
);
4348 pp
->curr_speed
= ntohl(op
->curr_speed
);
4349 pp
->max_speed
= ntohl(op
->max_speed
);
4355 parse_ofp14_port_ethernet_property(const struct ofpbuf
*payload
,
4356 struct ofputil_phy_port
*pp
)
4358 struct ofp14_port_desc_prop_ethernet
*eth
= payload
->data
;
4360 if (payload
->size
!= sizeof *eth
) {
4361 return OFPERR_OFPBPC_BAD_LEN
;
4364 pp
->curr
= netdev_port_features_from_ofp11(eth
->curr
);
4365 pp
->advertised
= netdev_port_features_from_ofp11(eth
->advertised
);
4366 pp
->supported
= netdev_port_features_from_ofp11(eth
->supported
);
4367 pp
->peer
= netdev_port_features_from_ofp11(eth
->peer
);
4369 pp
->curr_speed
= ntohl(eth
->curr_speed
);
4370 pp
->max_speed
= ntohl(eth
->max_speed
);
4376 ofputil_pull_ofp14_port(struct ofputil_phy_port
*pp
, struct ofpbuf
*msg
)
4378 struct ofp14_port
*op
= ofpbuf_try_pull(msg
, sizeof *op
);
4380 return OFPERR_OFPBRC_BAD_LEN
;
4383 size_t len
= ntohs(op
->length
);
4384 if (len
< sizeof *op
|| len
- sizeof *op
> msg
->size
) {
4385 return OFPERR_OFPBRC_BAD_LEN
;
4389 enum ofperr error
= ofputil_port_from_ofp11(op
->port_no
, &pp
->port_no
);
4393 pp
->hw_addr
= op
->hw_addr
;
4394 ovs_strlcpy(pp
->name
, op
->name
, OFP_MAX_PORT_NAME_LEN
);
4396 pp
->config
= ntohl(op
->config
) & OFPPC11_ALL
;
4397 pp
->state
= ntohl(op
->state
) & OFPPS11_ALL
;
4399 struct ofpbuf properties
= ofpbuf_const_initializer(ofpbuf_pull(msg
, len
),
4401 while (properties
.size
> 0) {
4402 struct ofpbuf payload
;
4406 error
= ofpprop_pull(&properties
, &payload
, &type
);
4412 case OFPPDPT14_ETHERNET
:
4413 error
= parse_ofp14_port_ethernet_property(&payload
, pp
);
4417 error
= OFPPROP_UNKNOWN(true, "port", type
);
4430 ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port
*pp
,
4431 struct ofp10_phy_port
*opp
)
4433 memset(opp
, 0, sizeof *opp
);
4435 opp
->port_no
= htons(ofp_to_u16(pp
->port_no
));
4436 opp
->hw_addr
= pp
->hw_addr
;
4437 ovs_strlcpy(opp
->name
, pp
->name
, OFP_MAX_PORT_NAME_LEN
);
4439 opp
->config
= htonl(pp
->config
& OFPPC10_ALL
);
4440 opp
->state
= htonl(pp
->state
& OFPPS10_ALL
);
4442 opp
->curr
= netdev_port_features_to_ofp10(pp
->curr
);
4443 opp
->advertised
= netdev_port_features_to_ofp10(pp
->advertised
);
4444 opp
->supported
= netdev_port_features_to_ofp10(pp
->supported
);
4445 opp
->peer
= netdev_port_features_to_ofp10(pp
->peer
);
4449 ofputil_encode_ofp11_port(const struct ofputil_phy_port
*pp
,
4450 struct ofp11_port
*op
)
4452 memset(op
, 0, sizeof *op
);
4454 op
->port_no
= ofputil_port_to_ofp11(pp
->port_no
);
4455 op
->hw_addr
= pp
->hw_addr
;
4456 ovs_strlcpy(op
->name
, pp
->name
, OFP_MAX_PORT_NAME_LEN
);
4458 op
->config
= htonl(pp
->config
& OFPPC11_ALL
);
4459 op
->state
= htonl(pp
->state
& OFPPS11_ALL
);
4461 op
->curr
= netdev_port_features_to_ofp11(pp
->curr
);
4462 op
->advertised
= netdev_port_features_to_ofp11(pp
->advertised
);
4463 op
->supported
= netdev_port_features_to_ofp11(pp
->supported
);
4464 op
->peer
= netdev_port_features_to_ofp11(pp
->peer
);
4466 op
->curr_speed
= htonl(pp
->curr_speed
);
4467 op
->max_speed
= htonl(pp
->max_speed
);
4471 ofputil_put_ofp14_port(const struct ofputil_phy_port
*pp
,
4474 struct ofp14_port
*op
;
4475 struct ofp14_port_desc_prop_ethernet
*eth
;
4477 ofpbuf_prealloc_tailroom(b
, sizeof *op
+ sizeof *eth
);
4479 op
= ofpbuf_put_zeros(b
, sizeof *op
);
4480 op
->port_no
= ofputil_port_to_ofp11(pp
->port_no
);
4481 op
->length
= htons(sizeof *op
+ sizeof *eth
);
4482 op
->hw_addr
= pp
->hw_addr
;
4483 ovs_strlcpy(op
->name
, pp
->name
, sizeof op
->name
);
4484 op
->config
= htonl(pp
->config
& OFPPC11_ALL
);
4485 op
->state
= htonl(pp
->state
& OFPPS11_ALL
);
4487 eth
= ofpprop_put_zeros(b
, OFPPDPT14_ETHERNET
, sizeof *eth
);
4488 eth
->curr
= netdev_port_features_to_ofp11(pp
->curr
);
4489 eth
->advertised
= netdev_port_features_to_ofp11(pp
->advertised
);
4490 eth
->supported
= netdev_port_features_to_ofp11(pp
->supported
);
4491 eth
->peer
= netdev_port_features_to_ofp11(pp
->peer
);
4492 eth
->curr_speed
= htonl(pp
->curr_speed
);
4493 eth
->max_speed
= htonl(pp
->max_speed
);
4497 ofputil_put_phy_port(enum ofp_version ofp_version
,
4498 const struct ofputil_phy_port
*pp
, struct ofpbuf
*b
)
4500 switch (ofp_version
) {
4501 case OFP10_VERSION
: {
4502 struct ofp10_phy_port
*opp
= ofpbuf_put_uninit(b
, sizeof *opp
);
4503 ofputil_encode_ofp10_phy_port(pp
, opp
);
4509 case OFP13_VERSION
: {
4510 struct ofp11_port
*op
= ofpbuf_put_uninit(b
, sizeof *op
);
4511 ofputil_encode_ofp11_port(pp
, op
);
4518 ofputil_put_ofp14_port(pp
, b
);
4527 ofputil_decode_port_desc_stats_request(const struct ofp_header
*request
,
4530 struct ofpbuf b
= ofpbuf_const_initializer(request
,
4531 ntohs(request
->length
));
4532 enum ofpraw raw
= ofpraw_pull_assert(&b
);
4533 if (raw
== OFPRAW_OFPST10_PORT_DESC_REQUEST
) {
4536 } else if (raw
== OFPRAW_OFPST15_PORT_DESC_REQUEST
) {
4537 ovs_be32
*ofp11_port
;
4539 ofp11_port
= ofpbuf_pull(&b
, sizeof *ofp11_port
);
4540 return ofputil_port_from_ofp11(*ofp11_port
, port
);
4547 ofputil_encode_port_desc_stats_request(enum ofp_version ofp_version
,
4550 struct ofpbuf
*request
;
4552 switch (ofp_version
) {
4558 request
= ofpraw_alloc(OFPRAW_OFPST10_PORT_DESC_REQUEST
,
4562 case OFP16_VERSION
:{
4563 struct ofp15_port_desc_request
*req
;
4564 request
= ofpraw_alloc(OFPRAW_OFPST15_PORT_DESC_REQUEST
,
4566 req
= ofpbuf_put_zeros(request
, sizeof *req
);
4567 req
->port_no
= ofputil_port_to_ofp11(port
);
4578 ofputil_append_port_desc_stats_reply(const struct ofputil_phy_port
*pp
,
4579 struct ovs_list
*replies
)
4581 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
4582 size_t start_ofs
= reply
->size
;
4584 ofputil_put_phy_port(ofpmp_version(replies
), pp
, reply
);
4585 ofpmp_postappend(replies
, start_ofs
);
4588 /* ofputil_switch_config */
4590 /* Decodes 'oh', which must be an OFPT_GET_CONFIG_REPLY or OFPT_SET_CONFIG
4591 * message, into 'config'. Returns false if 'oh' contained any flags that
4592 * aren't specified in its version of OpenFlow, true otherwise. */
4594 ofputil_decode_switch_config(const struct ofp_header
*oh
,
4595 struct ofputil_switch_config
*config
)
4597 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
4598 ofpraw_pull_assert(&b
);
4600 const struct ofp_switch_config
*osc
= ofpbuf_pull(&b
, sizeof *osc
);
4601 config
->frag
= ntohs(osc
->flags
) & OFPC_FRAG_MASK
;
4602 config
->miss_send_len
= ntohs(osc
->miss_send_len
);
4604 ovs_be16 valid_mask
= htons(OFPC_FRAG_MASK
);
4605 if (oh
->version
< OFP13_VERSION
) {
4606 const ovs_be16 ttl_bit
= htons(OFPC_INVALID_TTL_TO_CONTROLLER
);
4607 valid_mask
|= ttl_bit
;
4608 config
->invalid_ttl_to_controller
= (osc
->flags
& ttl_bit
) != 0;
4610 config
->invalid_ttl_to_controller
= -1;
4613 return !(osc
->flags
& ~valid_mask
);
4617 ofputil_decode_get_config_reply(const struct ofp_header
*oh
,
4618 struct ofputil_switch_config
*config
)
4620 ofputil_decode_switch_config(oh
, config
);
4624 ofputil_decode_set_config(const struct ofp_header
*oh
,
4625 struct ofputil_switch_config
*config
)
4627 return (ofputil_decode_switch_config(oh
, config
)
4629 : OFPERR_OFPSCFC_BAD_FLAGS
);
4632 static struct ofpbuf
*
4633 ofputil_put_switch_config(const struct ofputil_switch_config
*config
,
4636 const struct ofp_header
*oh
= b
->data
;
4637 struct ofp_switch_config
*osc
= ofpbuf_put_zeros(b
, sizeof *osc
);
4638 osc
->flags
= htons(config
->frag
);
4639 if (config
->invalid_ttl_to_controller
> 0 && oh
->version
< OFP13_VERSION
) {
4640 osc
->flags
|= htons(OFPC_INVALID_TTL_TO_CONTROLLER
);
4642 osc
->miss_send_len
= htons(config
->miss_send_len
);
4647 ofputil_encode_get_config_reply(const struct ofp_header
*request
,
4648 const struct ofputil_switch_config
*config
)
4650 struct ofpbuf
*b
= ofpraw_alloc_reply(OFPRAW_OFPT_GET_CONFIG_REPLY
,
4652 return ofputil_put_switch_config(config
, b
);
4656 ofputil_encode_set_config(const struct ofputil_switch_config
*config
,
4657 enum ofp_version version
)
4659 struct ofpbuf
*b
= ofpraw_alloc(OFPRAW_OFPT_SET_CONFIG
, version
, 0);
4660 return ofputil_put_switch_config(config
, b
);
4663 /* ofputil_switch_features */
4665 #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
4666 OFPC_IP_REASM | OFPC_QUEUE_STATS)
4667 BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS
== OFPC_FLOW_STATS
);
4668 BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS
== OFPC_TABLE_STATS
);
4669 BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS
== OFPC_PORT_STATS
);
4670 BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM
== OFPC_IP_REASM
);
4671 BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS
== OFPC_QUEUE_STATS
);
4672 BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP
== OFPC_ARP_MATCH_IP
);
4673 BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_BLOCKED
== OFPC12_PORT_BLOCKED
);
4674 BUILD_ASSERT_DECL((int) OFPUTIL_C_BUNDLES
== OFPC14_BUNDLES
);
4675 BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_MONITORING
== OFPC14_FLOW_MONITORING
);
4678 ofputil_capabilities_mask(enum ofp_version ofp_version
)
4680 /* Handle capabilities whose bit is unique for all OpenFlow versions */
4681 switch (ofp_version
) {
4684 return OFPC_COMMON
| OFPC_ARP_MATCH_IP
;
4687 return OFPC_COMMON
| OFPC12_PORT_BLOCKED
;
4691 return OFPC_COMMON
| OFPC12_PORT_BLOCKED
| OFPC14_BUNDLES
4692 | OFPC14_FLOW_MONITORING
;
4694 /* Caller needs to check osf->header.version itself */
4699 /* Pulls an OpenFlow "switch_features" structure from 'b' and decodes it into
4700 * an abstract representation in '*features', readying 'b' to iterate over the
4701 * OpenFlow port structures following 'osf' with later calls to
4702 * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an OFPERR_*
4705 ofputil_pull_switch_features(struct ofpbuf
*b
,
4706 struct ofputil_switch_features
*features
)
4708 const struct ofp_header
*oh
= b
->data
;
4709 enum ofpraw raw
= ofpraw_pull_assert(b
);
4710 const struct ofp_switch_features
*osf
= ofpbuf_pull(b
, sizeof *osf
);
4711 features
->datapath_id
= ntohll(osf
->datapath_id
);
4712 features
->n_buffers
= ntohl(osf
->n_buffers
);
4713 features
->n_tables
= osf
->n_tables
;
4714 features
->auxiliary_id
= 0;
4716 features
->capabilities
= ntohl(osf
->capabilities
) &
4717 ofputil_capabilities_mask(oh
->version
);
4719 if (raw
== OFPRAW_OFPT10_FEATURES_REPLY
) {
4720 if (osf
->capabilities
& htonl(OFPC10_STP
)) {
4721 features
->capabilities
|= OFPUTIL_C_STP
;
4723 features
->ofpacts
= ofpact_bitmap_from_openflow(osf
->actions
,
4725 } else if (raw
== OFPRAW_OFPT11_FEATURES_REPLY
4726 || raw
== OFPRAW_OFPT13_FEATURES_REPLY
) {
4727 if (osf
->capabilities
& htonl(OFPC11_GROUP_STATS
)) {
4728 features
->capabilities
|= OFPUTIL_C_GROUP_STATS
;
4730 features
->ofpacts
= 0;
4731 if (raw
== OFPRAW_OFPT13_FEATURES_REPLY
) {
4732 features
->auxiliary_id
= osf
->auxiliary_id
;
4735 return OFPERR_OFPBRC_BAD_VERSION
;
4741 /* In OpenFlow 1.0, 1.1, and 1.2, an OFPT_FEATURES_REPLY message lists all the
4742 * switch's ports, unless there are too many to fit. In OpenFlow 1.3 and
4743 * later, an OFPT_FEATURES_REPLY does not list ports at all.
4745 * Given a buffer 'b' that contains a Features Reply message, this message
4746 * checks if it contains a complete list of the switch's ports. Returns true,
4747 * if so. Returns false if the list is missing (OF1.3+) or incomplete
4748 * (OF1.0/1.1/1.2), and in the latter case removes all of the ports from the
4751 * When this function returns false, the caller should send an OFPST_PORT_DESC
4752 * stats request to get the ports. */
4754 ofputil_switch_features_has_ports(struct ofpbuf
*b
)
4756 struct ofp_header
*oh
= b
->data
;
4757 size_t phy_port_size
;
4759 if (oh
->version
>= OFP13_VERSION
) {
4760 /* OpenFlow 1.3+ never has ports in the feature reply. */
4764 phy_port_size
= (oh
->version
== OFP10_VERSION
4765 ? sizeof(struct ofp10_phy_port
)
4766 : sizeof(struct ofp11_port
));
4767 if (ntohs(oh
->length
) + phy_port_size
<= UINT16_MAX
) {
4768 /* There's room for additional ports in the feature reply.
4769 * Assume that the list is complete. */
4773 /* The feature reply has no room for more ports. Probably the list is
4774 * truncated. Drop the ports and tell the caller to retrieve them with
4775 * OFPST_PORT_DESC. */
4776 b
->size
= sizeof *oh
+ sizeof(struct ofp_switch_features
);
4777 ofpmsg_update_length(b
);
4781 /* Returns a buffer owned by the caller that encodes 'features' in the format
4782 * required by 'protocol' with the given 'xid'. The caller should append port
4783 * information to the buffer with subsequent calls to
4784 * ofputil_put_switch_features_port(). */
4786 ofputil_encode_switch_features(const struct ofputil_switch_features
*features
,
4787 enum ofputil_protocol protocol
, ovs_be32 xid
)
4789 struct ofp_switch_features
*osf
;
4791 enum ofp_version version
;
4794 version
= ofputil_protocol_to_ofp_version(protocol
);
4797 raw
= OFPRAW_OFPT10_FEATURES_REPLY
;
4801 raw
= OFPRAW_OFPT11_FEATURES_REPLY
;
4807 raw
= OFPRAW_OFPT13_FEATURES_REPLY
;
4812 b
= ofpraw_alloc_xid(raw
, version
, xid
, 0);
4813 osf
= ofpbuf_put_zeros(b
, sizeof *osf
);
4814 osf
->datapath_id
= htonll(features
->datapath_id
);
4815 osf
->n_buffers
= htonl(features
->n_buffers
);
4816 osf
->n_tables
= features
->n_tables
;
4818 osf
->capabilities
= htonl(features
->capabilities
&
4819 ofputil_capabilities_mask(version
));
4822 if (features
->capabilities
& OFPUTIL_C_STP
) {
4823 osf
->capabilities
|= htonl(OFPC10_STP
);
4825 osf
->actions
= ofpact_bitmap_to_openflow(features
->ofpacts
,
4832 osf
->auxiliary_id
= features
->auxiliary_id
;
4836 if (features
->capabilities
& OFPUTIL_C_GROUP_STATS
) {
4837 osf
->capabilities
|= htonl(OFPC11_GROUP_STATS
);
4847 /* Encodes 'pp' into the format required by the switch_features message already
4848 * in 'b', which should have been returned by ofputil_encode_switch_features(),
4849 * and appends the encoded version to 'b'. */
4851 ofputil_put_switch_features_port(const struct ofputil_phy_port
*pp
,
4854 const struct ofp_header
*oh
= b
->data
;
4856 if (oh
->version
< OFP13_VERSION
) {
4857 /* Try adding a port description to the message, but drop it again if
4858 * the buffer overflows. (This possibility for overflow is why
4859 * OpenFlow 1.3+ moved port descriptions into a multipart message.) */
4860 size_t start_ofs
= b
->size
;
4861 ofputil_put_phy_port(oh
->version
, pp
, b
);
4862 if (b
->size
> UINT16_MAX
) {
4863 b
->size
= start_ofs
;
4868 /* ofputil_port_status */
4870 /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
4871 * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
4873 ofputil_decode_port_status(const struct ofp_header
*oh
,
4874 struct ofputil_port_status
*ps
)
4876 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
4877 ofpraw_pull_assert(&b
);
4879 const struct ofp_port_status
*ops
= ofpbuf_pull(&b
, sizeof *ops
);
4880 if (ops
->reason
!= OFPPR_ADD
&&
4881 ops
->reason
!= OFPPR_DELETE
&&
4882 ops
->reason
!= OFPPR_MODIFY
) {
4883 return OFPERR_NXBRC_BAD_REASON
;
4885 ps
->reason
= ops
->reason
;
4887 int retval
= ofputil_pull_phy_port(oh
->version
, &b
, &ps
->desc
);
4888 ovs_assert(retval
!= EOF
);
4892 /* Converts the abstract form of a "port status" message in '*ps' into an
4893 * OpenFlow message suitable for 'protocol', and returns that encoded form in
4894 * a buffer owned by the caller. */
4896 ofputil_encode_port_status(const struct ofputil_port_status
*ps
,
4897 enum ofputil_protocol protocol
)
4899 struct ofp_port_status
*ops
;
4901 enum ofp_version version
;
4904 version
= ofputil_protocol_to_ofp_version(protocol
);
4907 raw
= OFPRAW_OFPT10_PORT_STATUS
;
4913 raw
= OFPRAW_OFPT11_PORT_STATUS
;
4919 raw
= OFPRAW_OFPT14_PORT_STATUS
;
4926 b
= ofpraw_alloc_xid(raw
, version
, htonl(0), 0);
4927 ops
= ofpbuf_put_zeros(b
, sizeof *ops
);
4928 ops
->reason
= ps
->reason
;
4929 ofputil_put_phy_port(version
, &ps
->desc
, b
);
4930 ofpmsg_update_length(b
);
4934 /* ofputil_port_mod */
4937 parse_port_mod_ethernet_property(struct ofpbuf
*property
,
4938 struct ofputil_port_mod
*pm
)
4943 error
= ofpprop_parse_be32(property
, &advertise
);
4945 pm
->advertise
= netdev_port_features_from_ofp11(advertise
);
4950 /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
4951 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
4953 ofputil_decode_port_mod(const struct ofp_header
*oh
,
4954 struct ofputil_port_mod
*pm
, bool loose
)
4956 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
4957 enum ofpraw raw
= ofpraw_pull_assert(&b
);
4958 if (raw
== OFPRAW_OFPT10_PORT_MOD
) {
4959 const struct ofp10_port_mod
*opm
= b
.data
;
4961 pm
->port_no
= u16_to_ofp(ntohs(opm
->port_no
));
4962 pm
->hw_addr
= opm
->hw_addr
;
4963 pm
->config
= ntohl(opm
->config
) & OFPPC10_ALL
;
4964 pm
->mask
= ntohl(opm
->mask
) & OFPPC10_ALL
;
4965 pm
->advertise
= netdev_port_features_from_ofp10(opm
->advertise
);
4966 } else if (raw
== OFPRAW_OFPT11_PORT_MOD
) {
4967 const struct ofp11_port_mod
*opm
= b
.data
;
4970 error
= ofputil_port_from_ofp11(opm
->port_no
, &pm
->port_no
);
4975 pm
->hw_addr
= opm
->hw_addr
;
4976 pm
->config
= ntohl(opm
->config
) & OFPPC11_ALL
;
4977 pm
->mask
= ntohl(opm
->mask
) & OFPPC11_ALL
;
4978 pm
->advertise
= netdev_port_features_from_ofp11(opm
->advertise
);
4979 } else if (raw
== OFPRAW_OFPT14_PORT_MOD
) {
4980 const struct ofp14_port_mod
*opm
= ofpbuf_pull(&b
, sizeof *opm
);
4983 memset(pm
, 0, sizeof *pm
);
4985 error
= ofputil_port_from_ofp11(opm
->port_no
, &pm
->port_no
);
4990 pm
->hw_addr
= opm
->hw_addr
;
4991 pm
->config
= ntohl(opm
->config
) & OFPPC11_ALL
;
4992 pm
->mask
= ntohl(opm
->mask
) & OFPPC11_ALL
;
4994 while (b
.size
> 0) {
4995 struct ofpbuf property
;
4999 error
= ofpprop_pull(&b
, &property
, &type
);
5005 case OFPPMPT14_ETHERNET
:
5006 error
= parse_port_mod_ethernet_property(&property
, pm
);
5010 error
= OFPPROP_UNKNOWN(loose
, "port_mod", type
);
5019 return OFPERR_OFPBRC_BAD_TYPE
;
5022 pm
->config
&= pm
->mask
;
5026 /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
5027 * message suitable for 'protocol', and returns that encoded form in a buffer
5028 * owned by the caller. */
5030 ofputil_encode_port_mod(const struct ofputil_port_mod
*pm
,
5031 enum ofputil_protocol protocol
)
5033 enum ofp_version ofp_version
= ofputil_protocol_to_ofp_version(protocol
);
5036 switch (ofp_version
) {
5037 case OFP10_VERSION
: {
5038 struct ofp10_port_mod
*opm
;
5040 b
= ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD
, ofp_version
, 0);
5041 opm
= ofpbuf_put_zeros(b
, sizeof *opm
);
5042 opm
->port_no
= htons(ofp_to_u16(pm
->port_no
));
5043 opm
->hw_addr
= pm
->hw_addr
;
5044 opm
->config
= htonl(pm
->config
& OFPPC10_ALL
);
5045 opm
->mask
= htonl(pm
->mask
& OFPPC10_ALL
);
5046 opm
->advertise
= netdev_port_features_to_ofp10(pm
->advertise
);
5052 case OFP13_VERSION
: {
5053 struct ofp11_port_mod
*opm
;
5055 b
= ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD
, ofp_version
, 0);
5056 opm
= ofpbuf_put_zeros(b
, sizeof *opm
);
5057 opm
->port_no
= ofputil_port_to_ofp11(pm
->port_no
);
5058 opm
->hw_addr
= pm
->hw_addr
;
5059 opm
->config
= htonl(pm
->config
& OFPPC11_ALL
);
5060 opm
->mask
= htonl(pm
->mask
& OFPPC11_ALL
);
5061 opm
->advertise
= netdev_port_features_to_ofp11(pm
->advertise
);
5066 case OFP16_VERSION
: {
5067 struct ofp14_port_mod
*opm
;
5069 b
= ofpraw_alloc(OFPRAW_OFPT14_PORT_MOD
, ofp_version
, 0);
5070 opm
= ofpbuf_put_zeros(b
, sizeof *opm
);
5071 opm
->port_no
= ofputil_port_to_ofp11(pm
->port_no
);
5072 opm
->hw_addr
= pm
->hw_addr
;
5073 opm
->config
= htonl(pm
->config
& OFPPC11_ALL
);
5074 opm
->mask
= htonl(pm
->mask
& OFPPC11_ALL
);
5076 if (pm
->advertise
) {
5077 ofpprop_put_be32(b
, OFPPMPT14_ETHERNET
,
5078 netdev_port_features_to_ofp11(pm
->advertise
));
5089 /* Table features. */
5092 pull_table_feature_property(struct ofpbuf
*msg
, struct ofpbuf
*payload
,
5097 error
= ofpprop_pull(msg
, payload
, typep
);
5098 if (payload
&& !error
) {
5099 ofpbuf_pull(payload
, (char *)payload
->msg
- (char *)payload
->header
);
5105 parse_action_bitmap(struct ofpbuf
*payload
, enum ofp_version ofp_version
,
5110 while (payload
->size
> 0) {
5114 error
= ofpprop_pull__(payload
, NULL
, 1, 0x10000, &type
);
5118 if (type
< CHAR_BIT
* sizeof types
) {
5119 types
|= 1u << type
;
5123 *ofpacts
= ofpact_bitmap_from_openflow(htonl(types
), ofp_version
);
5128 parse_instruction_ids(struct ofpbuf
*payload
, bool loose
, uint32_t *insts
)
5131 while (payload
->size
> 0) {
5132 enum ovs_instruction_type inst
;
5136 /* OF1.3 and OF1.4 aren't clear about padding in the instruction IDs.
5137 * It seems clear that they aren't padded to 8 bytes, though, because
5138 * both standards say that "non-experimenter instructions are 4 bytes"
5139 * and do not mention any padding before the first instruction ID.
5140 * (There wouldn't be any point in padding to 8 bytes if the IDs were
5141 * aligned on an odd 4-byte boundary.)
5143 * Anyway, we just assume they're all glommed together on byte
5145 error
= ofpprop_pull__(payload
, NULL
, 1, 0x10000, &ofpit
);
5150 error
= ovs_instruction_type_from_inst_type(&inst
, ofpit
);
5152 *insts
|= 1u << inst
;
5153 } else if (!loose
) {
5161 parse_table_features_next_table(struct ofpbuf
*payload
,
5162 unsigned long int *next_tables
)
5166 memset(next_tables
, 0, bitmap_n_bytes(255));
5167 for (i
= 0; i
< payload
->size
; i
++) {
5168 uint8_t id
= ((const uint8_t *) payload
->data
)[i
];
5170 return OFPERR_OFPBPC_BAD_VALUE
;
5172 bitmap_set1(next_tables
, id
);
5178 parse_oxms(struct ofpbuf
*payload
, bool loose
,
5179 struct mf_bitmap
*exactp
, struct mf_bitmap
*maskedp
)
5181 struct mf_bitmap exact
= MF_BITMAP_INITIALIZER
;
5182 struct mf_bitmap masked
= MF_BITMAP_INITIALIZER
;
5184 while (payload
->size
> 0) {
5185 const struct mf_field
*field
;
5189 error
= nx_pull_header(payload
, NULL
, &field
, &hasmask
);
5191 bitmap_set1(hasmask
? masked
.bm
: exact
.bm
, field
->id
);
5192 } else if (error
!= OFPERR_OFPBMC_BAD_FIELD
|| !loose
) {
5198 } else if (!bitmap_is_all_zeros(exact
.bm
, MFF_N_IDS
)) {
5199 return OFPERR_OFPBMC_BAD_MASK
;
5203 } else if (!bitmap_is_all_zeros(masked
.bm
, MFF_N_IDS
)) {
5204 return OFPERR_OFPBMC_BAD_MASK
;
5209 /* Converts an OFPMP_TABLE_FEATURES request or reply in 'msg' into an abstract
5210 * ofputil_table_features in 'tf'.
5212 * If 'loose' is true, this function ignores properties and values that it does
5213 * not understand, as a controller would want to do when interpreting
5214 * capabilities provided by a switch. If 'loose' is false, this function
5215 * treats unknown properties and values as an error, as a switch would want to
5216 * do when interpreting a configuration request made by a controller.
5218 * A single OpenFlow message can specify features for multiple tables. Calling
5219 * this function multiple times for a single 'msg' iterates through the tables
5220 * in the message. The caller must initially leave 'msg''s layer pointers null
5221 * and not modify them between calls.
5223 * Returns 0 if successful, EOF if no tables were left in this 'msg', otherwise
5224 * a positive "enum ofperr" value. */
5226 ofputil_decode_table_features(struct ofpbuf
*msg
,
5227 struct ofputil_table_features
*tf
, bool loose
)
5229 memset(tf
, 0, sizeof *tf
);
5232 ofpraw_pull_assert(msg
);
5239 const struct ofp_header
*oh
= msg
->header
;
5240 struct ofp13_table_features
*otf
= msg
->data
;
5241 if (msg
->size
< sizeof *otf
) {
5242 return OFPERR_OFPBPC_BAD_LEN
;
5245 unsigned int len
= ntohs(otf
->length
);
5246 if (len
< sizeof *otf
|| len
% 8 || len
> msg
->size
) {
5247 return OFPERR_OFPBPC_BAD_LEN
;
5250 tf
->table_id
= otf
->table_id
;
5251 if (tf
->table_id
== OFPTT_ALL
) {
5252 return OFPERR_OFPTFFC_BAD_TABLE
;
5255 ovs_strlcpy(tf
->name
, otf
->name
, OFP_MAX_TABLE_NAME_LEN
);
5256 tf
->metadata_match
= otf
->metadata_match
;
5257 tf
->metadata_write
= otf
->metadata_write
;
5258 tf
->miss_config
= OFPUTIL_TABLE_MISS_DEFAULT
;
5259 if (oh
->version
>= OFP14_VERSION
) {
5260 uint32_t caps
= ntohl(otf
->capabilities
);
5261 tf
->supports_eviction
= (caps
& OFPTC14_EVICTION
) != 0;
5262 tf
->supports_vacancy_events
= (caps
& OFPTC14_VACANCY_EVENTS
) != 0;
5264 tf
->supports_eviction
= -1;
5265 tf
->supports_vacancy_events
= -1;
5267 tf
->max_entries
= ntohl(otf
->max_entries
);
5269 struct ofpbuf properties
= ofpbuf_const_initializer(ofpbuf_pull(msg
, len
),
5271 ofpbuf_pull(&properties
, sizeof *otf
);
5272 while (properties
.size
> 0) {
5273 struct ofpbuf payload
;
5277 error
= pull_table_feature_property(&properties
, &payload
, &type
);
5282 switch ((enum ofp13_table_feature_prop_type
) type
) {
5283 case OFPTFPT13_INSTRUCTIONS
:
5284 error
= parse_instruction_ids(&payload
, loose
,
5285 &tf
->nonmiss
.instructions
);
5287 case OFPTFPT13_INSTRUCTIONS_MISS
:
5288 error
= parse_instruction_ids(&payload
, loose
,
5289 &tf
->miss
.instructions
);
5292 case OFPTFPT13_NEXT_TABLES
:
5293 error
= parse_table_features_next_table(&payload
,
5296 case OFPTFPT13_NEXT_TABLES_MISS
:
5297 error
= parse_table_features_next_table(&payload
, tf
->miss
.next
);
5300 case OFPTFPT13_WRITE_ACTIONS
:
5301 error
= parse_action_bitmap(&payload
, oh
->version
,
5302 &tf
->nonmiss
.write
.ofpacts
);
5304 case OFPTFPT13_WRITE_ACTIONS_MISS
:
5305 error
= parse_action_bitmap(&payload
, oh
->version
,
5306 &tf
->miss
.write
.ofpacts
);
5309 case OFPTFPT13_APPLY_ACTIONS
:
5310 error
= parse_action_bitmap(&payload
, oh
->version
,
5311 &tf
->nonmiss
.apply
.ofpacts
);
5313 case OFPTFPT13_APPLY_ACTIONS_MISS
:
5314 error
= parse_action_bitmap(&payload
, oh
->version
,
5315 &tf
->miss
.apply
.ofpacts
);
5318 case OFPTFPT13_MATCH
:
5319 error
= parse_oxms(&payload
, loose
, &tf
->match
, &tf
->mask
);
5321 case OFPTFPT13_WILDCARDS
:
5322 error
= parse_oxms(&payload
, loose
, &tf
->wildcard
, NULL
);
5325 case OFPTFPT13_WRITE_SETFIELD
:
5326 error
= parse_oxms(&payload
, loose
,
5327 &tf
->nonmiss
.write
.set_fields
, NULL
);
5329 case OFPTFPT13_WRITE_SETFIELD_MISS
:
5330 error
= parse_oxms(&payload
, loose
,
5331 &tf
->miss
.write
.set_fields
, NULL
);
5333 case OFPTFPT13_APPLY_SETFIELD
:
5334 error
= parse_oxms(&payload
, loose
,
5335 &tf
->nonmiss
.apply
.set_fields
, NULL
);
5337 case OFPTFPT13_APPLY_SETFIELD_MISS
:
5338 error
= parse_oxms(&payload
, loose
,
5339 &tf
->miss
.apply
.set_fields
, NULL
);
5342 case OFPTFPT13_EXPERIMENTER
:
5343 case OFPTFPT13_EXPERIMENTER_MISS
:
5345 error
= OFPPROP_UNKNOWN(loose
, "table features", type
);
5353 /* Fix inconsistencies:
5355 * - Turn on 'match' bits that are set in 'mask', because maskable
5356 * fields are matchable.
5358 * - Turn on 'wildcard' bits that are set in 'mask', because a field
5359 * that is arbitrarily maskable can be wildcarded entirely.
5361 * - Turn off 'wildcard' bits that are not in 'match', because a field
5362 * must be matchable for it to be meaningfully wildcarded. */
5363 bitmap_or(tf
->match
.bm
, tf
->mask
.bm
, MFF_N_IDS
);
5364 bitmap_or(tf
->wildcard
.bm
, tf
->mask
.bm
, MFF_N_IDS
);
5365 bitmap_and(tf
->wildcard
.bm
, tf
->match
.bm
, MFF_N_IDS
);
5370 /* Encodes and returns a request to obtain the table features of a switch.
5371 * The message is encoded for OpenFlow version 'ofp_version'. */
5373 ofputil_encode_table_features_request(enum ofp_version ofp_version
)
5375 struct ofpbuf
*request
= NULL
;
5377 switch (ofp_version
) {
5381 ovs_fatal(0, "dump-table-features needs OpenFlow 1.3 or later "
5382 "(\'-O OpenFlow13\')");
5387 request
= ofpraw_alloc(OFPRAW_OFPST13_TABLE_FEATURES_REQUEST
,
5398 put_fields_property(struct ofpbuf
*reply
,
5399 const struct mf_bitmap
*fields
,
5400 const struct mf_bitmap
*masks
,
5401 enum ofp13_table_feature_prop_type property
,
5402 enum ofp_version version
)
5407 start_ofs
= ofpprop_start(reply
, property
);
5408 BITMAP_FOR_EACH_1 (field
, MFF_N_IDS
, fields
->bm
) {
5409 nx_put_header(reply
, field
, version
,
5410 masks
&& bitmap_is_set(masks
->bm
, field
));
5412 ofpprop_end(reply
, start_ofs
);
5416 put_table_action_features(struct ofpbuf
*reply
,
5417 const struct ofputil_table_action_features
*taf
,
5418 enum ofp13_table_feature_prop_type actions_type
,
5419 enum ofp13_table_feature_prop_type set_fields_type
,
5420 int miss_offset
, enum ofp_version version
)
5422 ofpprop_put_bitmap(reply
, actions_type
+ miss_offset
,
5423 ntohl(ofpact_bitmap_to_openflow(taf
->ofpacts
,
5425 put_fields_property(reply
, &taf
->set_fields
, NULL
,
5426 set_fields_type
+ miss_offset
, version
);
5430 put_table_instruction_features(
5431 struct ofpbuf
*reply
, const struct ofputil_table_instruction_features
*tif
,
5432 int miss_offset
, enum ofp_version version
)
5437 ofpprop_put_bitmap(reply
, OFPTFPT13_INSTRUCTIONS
+ miss_offset
,
5438 ntohl(ovsinst_bitmap_to_openflow(tif
->instructions
,
5441 start_ofs
= ofpprop_start(reply
, OFPTFPT13_NEXT_TABLES
+ miss_offset
);
5442 BITMAP_FOR_EACH_1 (table_id
, 255, tif
->next
) {
5443 ofpbuf_put(reply
, &table_id
, 1);
5445 ofpprop_end(reply
, start_ofs
);
5447 put_table_action_features(reply
, &tif
->write
,
5448 OFPTFPT13_WRITE_ACTIONS
,
5449 OFPTFPT13_WRITE_SETFIELD
, miss_offset
, version
);
5450 put_table_action_features(reply
, &tif
->apply
,
5451 OFPTFPT13_APPLY_ACTIONS
,
5452 OFPTFPT13_APPLY_SETFIELD
, miss_offset
, version
);
5456 ofputil_append_table_features_reply(const struct ofputil_table_features
*tf
,
5457 struct ovs_list
*replies
)
5459 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
5460 enum ofp_version version
= ofpmp_version(replies
);
5461 size_t start_ofs
= reply
->size
;
5462 struct ofp13_table_features
*otf
;
5464 otf
= ofpbuf_put_zeros(reply
, sizeof *otf
);
5465 otf
->table_id
= tf
->table_id
;
5466 ovs_strlcpy(otf
->name
, tf
->name
, sizeof otf
->name
);
5467 otf
->metadata_match
= tf
->metadata_match
;
5468 otf
->metadata_write
= tf
->metadata_write
;
5469 if (version
>= OFP14_VERSION
) {
5470 if (tf
->supports_eviction
) {
5471 otf
->capabilities
|= htonl(OFPTC14_EVICTION
);
5473 if (tf
->supports_vacancy_events
) {
5474 otf
->capabilities
|= htonl(OFPTC14_VACANCY_EVENTS
);
5477 otf
->max_entries
= htonl(tf
->max_entries
);
5479 put_table_instruction_features(reply
, &tf
->nonmiss
, 0, version
);
5480 put_table_instruction_features(reply
, &tf
->miss
, 1, version
);
5482 put_fields_property(reply
, &tf
->match
, &tf
->mask
,
5483 OFPTFPT13_MATCH
, version
);
5484 put_fields_property(reply
, &tf
->wildcard
, NULL
,
5485 OFPTFPT13_WILDCARDS
, version
);
5487 otf
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *otf
);
5488 otf
->length
= htons(reply
->size
- start_ofs
);
5489 ofpmp_postappend(replies
, start_ofs
);
5493 parse_table_desc_vacancy_property(struct ofpbuf
*property
,
5494 struct ofputil_table_desc
*td
)
5496 struct ofp14_table_mod_prop_vacancy
*otv
= property
->data
;
5498 if (property
->size
!= sizeof *otv
) {
5499 return OFPERR_OFPBPC_BAD_LEN
;
5502 td
->table_vacancy
.vacancy_down
= otv
->vacancy_down
;
5503 td
->table_vacancy
.vacancy_up
= otv
->vacancy_up
;
5504 td
->table_vacancy
.vacancy
= otv
->vacancy
;
5508 /* Decodes the next OpenFlow "table desc" message (of possibly several) from
5509 * 'msg' into an abstract form in '*td'. Returns 0 if successful, EOF if the
5510 * last "table desc" in 'msg' was already decoded, otherwise an OFPERR_*
5513 ofputil_decode_table_desc(struct ofpbuf
*msg
,
5514 struct ofputil_table_desc
*td
,
5515 enum ofp_version version
)
5517 memset(td
, 0, sizeof *td
);
5520 ofpraw_pull_assert(msg
);
5527 struct ofp14_table_desc
*otd
= ofpbuf_try_pull(msg
, sizeof *otd
);
5529 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFP14_TABLE_DESC reply has %"PRIu32
" "
5530 "leftover bytes at end", msg
->size
);
5531 return OFPERR_OFPBRC_BAD_LEN
;
5534 td
->table_id
= otd
->table_id
;
5535 size_t length
= ntohs(otd
->length
);
5536 if (length
< sizeof *otd
|| length
- sizeof *otd
> msg
->size
) {
5537 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFP14_TABLE_DESC reply claims invalid "
5538 "length %"PRIuSIZE
, length
);
5539 return OFPERR_OFPBRC_BAD_LEN
;
5541 length
-= sizeof *otd
;
5543 td
->eviction
= ofputil_decode_table_eviction(otd
->config
, version
);
5544 td
->vacancy
= ofputil_decode_table_vacancy(otd
->config
, version
);
5545 td
->eviction_flags
= UINT32_MAX
;
5547 struct ofpbuf properties
= ofpbuf_const_initializer(
5548 ofpbuf_pull(msg
, length
), length
);
5549 while (properties
.size
> 0) {
5550 struct ofpbuf payload
;
5554 error
= ofpprop_pull(&properties
, &payload
, &type
);
5560 case OFPTMPT14_EVICTION
:
5561 error
= ofpprop_parse_u32(&payload
, &td
->eviction_flags
);
5564 case OFPTMPT14_VACANCY
:
5565 error
= parse_table_desc_vacancy_property(&payload
, td
);
5569 error
= OFPPROP_UNKNOWN(true, "table_desc", type
);
5581 /* Encodes and returns a request to obtain description of tables of a switch.
5582 * The message is encoded for OpenFlow version 'ofp_version'. */
5584 ofputil_encode_table_desc_request(enum ofp_version ofp_version
)
5586 struct ofpbuf
*request
= NULL
;
5588 if (ofp_version
>= OFP14_VERSION
) {
5589 request
= ofpraw_alloc(OFPRAW_OFPST14_TABLE_DESC_REQUEST
,
5592 ovs_fatal(0, "dump-table-desc needs OpenFlow 1.4 or later "
5593 "(\'-O OpenFlow14\')");
5599 /* Function to append Table desc information in a reply list. */
5601 ofputil_append_table_desc_reply(const struct ofputil_table_desc
*td
,
5602 struct ovs_list
*replies
,
5603 enum ofp_version version
)
5605 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
5607 struct ofp14_table_desc
*otd
;
5609 start_otd
= reply
->size
;
5610 ofpbuf_put_zeros(reply
, sizeof *otd
);
5611 if (td
->eviction_flags
!= UINT32_MAX
) {
5612 ofpprop_put_u32(reply
, OFPTMPT14_EVICTION
, td
->eviction_flags
);
5614 if (td
->vacancy
== OFPUTIL_TABLE_VACANCY_ON
) {
5615 struct ofp14_table_mod_prop_vacancy
*otv
;
5617 otv
= ofpprop_put_zeros(reply
, OFPTMPT14_VACANCY
, sizeof *otv
);
5618 otv
->vacancy_down
= td
->table_vacancy
.vacancy_down
;
5619 otv
->vacancy_up
= td
->table_vacancy
.vacancy_up
;
5620 otv
->vacancy
= td
->table_vacancy
.vacancy
;
5623 otd
= ofpbuf_at_assert(reply
, start_otd
, sizeof *otd
);
5624 otd
->length
= htons(reply
->size
- start_otd
);
5625 otd
->table_id
= td
->table_id
;
5626 otd
->config
= ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT
,
5627 td
->eviction
, td
->vacancy
,
5629 ofpmp_postappend(replies
, start_otd
);
5632 /* This function parses Vacancy property, and decodes the
5633 * ofp14_table_mod_prop_vacancy in ofputil_table_mod.
5634 * Returns OFPERR_OFPBPC_BAD_VALUE error code when vacancy_down is
5635 * greater than vacancy_up and also when current vacancy has non-zero
5636 * value. Returns 0 on success. */
5638 parse_table_mod_vacancy_property(struct ofpbuf
*property
,
5639 struct ofputil_table_mod
*tm
)
5641 struct ofp14_table_mod_prop_vacancy
*otv
= property
->data
;
5643 if (property
->size
!= sizeof *otv
) {
5644 return OFPERR_OFPBPC_BAD_LEN
;
5646 tm
->table_vacancy
.vacancy_down
= otv
->vacancy_down
;
5647 tm
->table_vacancy
.vacancy_up
= otv
->vacancy_up
;
5648 if (tm
->table_vacancy
.vacancy_down
> tm
->table_vacancy
.vacancy_up
) {
5649 OFPPROP_LOG(&bad_ofmsg_rl
, false,
5650 "Value of vacancy_down is greater than vacancy_up");
5651 return OFPERR_OFPBPC_BAD_VALUE
;
5653 if (tm
->table_vacancy
.vacancy_down
> 100 ||
5654 tm
->table_vacancy
.vacancy_up
> 100) {
5655 OFPPROP_LOG(&bad_ofmsg_rl
, false, "Vacancy threshold percentage "
5656 "should not be greater than 100");
5657 return OFPERR_OFPBPC_BAD_VALUE
;
5659 tm
->table_vacancy
.vacancy
= otv
->vacancy
;
5660 if (tm
->table_vacancy
.vacancy
) {
5661 OFPPROP_LOG(&bad_ofmsg_rl
, false,
5662 "Vacancy value should be zero for table-mod messages");
5663 return OFPERR_OFPBPC_BAD_VALUE
;
5668 /* Given 'config', taken from an OpenFlow 'version' message that specifies
5669 * table configuration (a table mod, table stats, or table features message),
5670 * returns the table vacancy configuration that it specifies.
5672 * Only OpenFlow 1.4 and later specify table vacancy configuration this way,
5673 * so for other 'version' this function always returns
5674 * OFPUTIL_TABLE_VACANCY_DEFAULT. */
5675 static enum ofputil_table_vacancy
5676 ofputil_decode_table_vacancy(ovs_be32 config
, enum ofp_version version
)
5678 return (version
< OFP14_VERSION
? OFPUTIL_TABLE_VACANCY_DEFAULT
5679 : config
& htonl(OFPTC14_VACANCY_EVENTS
) ? OFPUTIL_TABLE_VACANCY_ON
5680 : OFPUTIL_TABLE_VACANCY_OFF
);
5683 /* Given 'config', taken from an OpenFlow 'version' message that specifies
5684 * table configuration (a table mod, table stats, or table features message),
5685 * returns the table eviction configuration that it specifies.
5687 * Only OpenFlow 1.4 and later specify table eviction configuration this way,
5688 * so for other 'version' values this function always returns
5689 * OFPUTIL_TABLE_EVICTION_DEFAULT. */
5690 static enum ofputil_table_eviction
5691 ofputil_decode_table_eviction(ovs_be32 config
, enum ofp_version version
)
5693 return (version
< OFP14_VERSION
? OFPUTIL_TABLE_EVICTION_DEFAULT
5694 : config
& htonl(OFPTC14_EVICTION
) ? OFPUTIL_TABLE_EVICTION_ON
5695 : OFPUTIL_TABLE_EVICTION_OFF
);
5698 /* Returns a bitmap of OFPTC* values suitable for 'config' fields in various
5699 * OpenFlow messages of the given 'version', based on the provided 'miss' and
5700 * 'eviction' values. */
5702 ofputil_encode_table_config(enum ofputil_table_miss miss
,
5703 enum ofputil_table_eviction eviction
,
5704 enum ofputil_table_vacancy vacancy
,
5705 enum ofp_version version
)
5707 uint32_t config
= 0;
5708 /* Search for "OFPTC_* Table Configuration" in the documentation for more
5709 * information on the crazy evolution of this field. */
5712 /* OpenFlow 1.0 didn't have such a field, any value ought to do. */
5717 /* OpenFlow 1.1 and 1.2 define only OFPTC11_TABLE_MISS_*. */
5719 case OFPUTIL_TABLE_MISS_DEFAULT
:
5720 /* Really this shouldn't be used for encoding (the caller should
5721 * provide a specific value) but I can't imagine that defaulting to
5722 * the fall-through case here will hurt. */
5723 case OFPUTIL_TABLE_MISS_CONTROLLER
:
5725 return htonl(OFPTC11_TABLE_MISS_CONTROLLER
);
5726 case OFPUTIL_TABLE_MISS_CONTINUE
:
5727 return htonl(OFPTC11_TABLE_MISS_CONTINUE
);
5728 case OFPUTIL_TABLE_MISS_DROP
:
5729 return htonl(OFPTC11_TABLE_MISS_DROP
);
5734 /* OpenFlow 1.3 removed OFPTC11_TABLE_MISS_* and didn't define any new
5735 * flags, so this is correct. */
5741 /* OpenFlow 1.4 introduced OFPTC14_EVICTION and
5742 * OFPTC14_VACANCY_EVENTS. */
5743 if (eviction
== OFPUTIL_TABLE_EVICTION_ON
) {
5744 config
|= OFPTC14_EVICTION
;
5746 if (vacancy
== OFPUTIL_TABLE_VACANCY_ON
) {
5747 config
|= OFPTC14_VACANCY_EVENTS
;
5749 return htonl(config
);
5755 /* Given 'config', taken from an OpenFlow 'version' message that specifies
5756 * table configuration (a table mod, table stats, or table features message),
5757 * returns the table miss configuration that it specifies.
5759 * Only OpenFlow 1.1 and 1.2 specify table miss configurations this way, so for
5760 * other 'version' values this function always returns
5761 * OFPUTIL_TABLE_MISS_DEFAULT. */
5762 static enum ofputil_table_miss
5763 ofputil_decode_table_miss(ovs_be32 config_
, enum ofp_version version
)
5765 uint32_t config
= ntohl(config_
);
5767 if (version
== OFP11_VERSION
|| version
== OFP12_VERSION
) {
5768 switch (config
& OFPTC11_TABLE_MISS_MASK
) {
5769 case OFPTC11_TABLE_MISS_CONTROLLER
:
5770 return OFPUTIL_TABLE_MISS_CONTROLLER
;
5772 case OFPTC11_TABLE_MISS_CONTINUE
:
5773 return OFPUTIL_TABLE_MISS_CONTINUE
;
5775 case OFPTC11_TABLE_MISS_DROP
:
5776 return OFPUTIL_TABLE_MISS_DROP
;
5779 VLOG_WARN_RL(&bad_ofmsg_rl
, "bad table miss config %d", config
);
5780 return OFPUTIL_TABLE_MISS_CONTROLLER
;
5783 return OFPUTIL_TABLE_MISS_DEFAULT
;
5787 /* Decodes the OpenFlow "table mod" message in '*oh' into an abstract form in
5788 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
5790 ofputil_decode_table_mod(const struct ofp_header
*oh
,
5791 struct ofputil_table_mod
*pm
)
5793 memset(pm
, 0, sizeof *pm
);
5794 pm
->miss
= OFPUTIL_TABLE_MISS_DEFAULT
;
5795 pm
->eviction
= OFPUTIL_TABLE_EVICTION_DEFAULT
;
5796 pm
->eviction_flags
= UINT32_MAX
;
5797 pm
->vacancy
= OFPUTIL_TABLE_VACANCY_DEFAULT
;
5799 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
5800 enum ofpraw raw
= ofpraw_pull_assert(&b
);
5801 if (raw
== OFPRAW_OFPT11_TABLE_MOD
) {
5802 const struct ofp11_table_mod
*otm
= b
.data
;
5804 pm
->table_id
= otm
->table_id
;
5805 pm
->miss
= ofputil_decode_table_miss(otm
->config
, oh
->version
);
5806 } else if (raw
== OFPRAW_OFPT14_TABLE_MOD
) {
5807 const struct ofp14_table_mod
*otm
= ofpbuf_pull(&b
, sizeof *otm
);
5809 pm
->table_id
= otm
->table_id
;
5810 pm
->miss
= ofputil_decode_table_miss(otm
->config
, oh
->version
);
5811 pm
->eviction
= ofputil_decode_table_eviction(otm
->config
, oh
->version
);
5812 pm
->vacancy
= ofputil_decode_table_vacancy(otm
->config
, oh
->version
);
5813 while (b
.size
> 0) {
5814 struct ofpbuf property
;
5818 error
= ofpprop_pull(&b
, &property
, &type
);
5824 case OFPTMPT14_EVICTION
:
5825 error
= ofpprop_parse_u32(&property
, &pm
->eviction
);
5828 case OFPTMPT14_VACANCY
:
5829 error
= parse_table_mod_vacancy_property(&property
, pm
);
5833 error
= OFPERR_OFPBRC_BAD_TYPE
;
5842 return OFPERR_OFPBRC_BAD_TYPE
;
5848 /* Converts the abstract form of a "table mod" message in '*tm' into an
5849 * OpenFlow message suitable for 'protocol', and returns that encoded form in a
5850 * buffer owned by the caller. */
5852 ofputil_encode_table_mod(const struct ofputil_table_mod
*tm
,
5853 enum ofputil_protocol protocol
)
5855 enum ofp_version ofp_version
= ofputil_protocol_to_ofp_version(protocol
);
5858 switch (ofp_version
) {
5859 case OFP10_VERSION
: {
5860 ovs_fatal(0, "table mod needs OpenFlow 1.1 or later "
5861 "(\'-O OpenFlow11\')");
5866 case OFP13_VERSION
: {
5867 struct ofp11_table_mod
*otm
;
5869 b
= ofpraw_alloc(OFPRAW_OFPT11_TABLE_MOD
, ofp_version
, 0);
5870 otm
= ofpbuf_put_zeros(b
, sizeof *otm
);
5871 otm
->table_id
= tm
->table_id
;
5872 otm
->config
= ofputil_encode_table_config(tm
->miss
, tm
->eviction
,
5873 tm
->vacancy
, ofp_version
);
5878 case OFP16_VERSION
: {
5879 struct ofp14_table_mod
*otm
;
5881 b
= ofpraw_alloc(OFPRAW_OFPT14_TABLE_MOD
, ofp_version
, 0);
5882 otm
= ofpbuf_put_zeros(b
, sizeof *otm
);
5883 otm
->table_id
= tm
->table_id
;
5884 otm
->config
= ofputil_encode_table_config(tm
->miss
, tm
->eviction
,
5885 tm
->vacancy
, ofp_version
);
5887 if (tm
->eviction_flags
!= UINT32_MAX
) {
5888 ofpprop_put_u32(b
, OFPTMPT14_EVICTION
, tm
->eviction_flags
);
5890 if (tm
->vacancy
== OFPUTIL_TABLE_VACANCY_ON
) {
5891 struct ofp14_table_mod_prop_vacancy
*otv
;
5893 otv
= ofpprop_put_zeros(b
, OFPTMPT14_VACANCY
, sizeof *otv
);
5894 otv
->vacancy_down
= tm
->table_vacancy
.vacancy_down
;
5895 otv
->vacancy_up
= tm
->table_vacancy
.vacancy_up
;
5906 /* ofputil_role_request */
5908 /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into
5909 * an abstract form in '*rr'. Returns 0 if successful, otherwise an
5910 * OFPERR_* value. */
5912 ofputil_decode_role_message(const struct ofp_header
*oh
,
5913 struct ofputil_role_request
*rr
)
5915 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
5916 enum ofpraw raw
= ofpraw_pull_assert(&b
);
5917 if (raw
== OFPRAW_OFPT12_ROLE_REQUEST
||
5918 raw
== OFPRAW_OFPT12_ROLE_REPLY
) {
5919 const struct ofp12_role_request
*orr
= b
.msg
;
5921 if (orr
->role
!= htonl(OFPCR12_ROLE_NOCHANGE
) &&
5922 orr
->role
!= htonl(OFPCR12_ROLE_EQUAL
) &&
5923 orr
->role
!= htonl(OFPCR12_ROLE_MASTER
) &&
5924 orr
->role
!= htonl(OFPCR12_ROLE_SLAVE
)) {
5925 return OFPERR_OFPRRFC_BAD_ROLE
;
5928 rr
->role
= ntohl(orr
->role
);
5929 if (raw
== OFPRAW_OFPT12_ROLE_REQUEST
5930 ? orr
->role
== htonl(OFPCR12_ROLE_NOCHANGE
)
5931 : orr
->generation_id
== OVS_BE64_MAX
) {
5932 rr
->have_generation_id
= false;
5933 rr
->generation_id
= 0;
5935 rr
->have_generation_id
= true;
5936 rr
->generation_id
= ntohll(orr
->generation_id
);
5938 } else if (raw
== OFPRAW_NXT_ROLE_REQUEST
||
5939 raw
== OFPRAW_NXT_ROLE_REPLY
) {
5940 const struct nx_role_request
*nrr
= b
.msg
;
5942 BUILD_ASSERT(NX_ROLE_OTHER
+ 1 == OFPCR12_ROLE_EQUAL
);
5943 BUILD_ASSERT(NX_ROLE_MASTER
+ 1 == OFPCR12_ROLE_MASTER
);
5944 BUILD_ASSERT(NX_ROLE_SLAVE
+ 1 == OFPCR12_ROLE_SLAVE
);
5946 if (nrr
->role
!= htonl(NX_ROLE_OTHER
) &&
5947 nrr
->role
!= htonl(NX_ROLE_MASTER
) &&
5948 nrr
->role
!= htonl(NX_ROLE_SLAVE
)) {
5949 return OFPERR_OFPRRFC_BAD_ROLE
;
5952 rr
->role
= ntohl(nrr
->role
) + 1;
5953 rr
->have_generation_id
= false;
5954 rr
->generation_id
= 0;
5962 /* Returns an encoded form of a role reply suitable for the "request" in a
5963 * buffer owned by the caller. */
5965 ofputil_encode_role_reply(const struct ofp_header
*request
,
5966 const struct ofputil_role_request
*rr
)
5971 raw
= ofpraw_decode_assert(request
);
5972 if (raw
== OFPRAW_OFPT12_ROLE_REQUEST
) {
5973 struct ofp12_role_request
*orr
;
5975 buf
= ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY
, request
, 0);
5976 orr
= ofpbuf_put_zeros(buf
, sizeof *orr
);
5978 orr
->role
= htonl(rr
->role
);
5979 orr
->generation_id
= htonll(rr
->have_generation_id
5982 } else if (raw
== OFPRAW_NXT_ROLE_REQUEST
) {
5983 struct nx_role_request
*nrr
;
5985 BUILD_ASSERT(NX_ROLE_OTHER
== OFPCR12_ROLE_EQUAL
- 1);
5986 BUILD_ASSERT(NX_ROLE_MASTER
== OFPCR12_ROLE_MASTER
- 1);
5987 BUILD_ASSERT(NX_ROLE_SLAVE
== OFPCR12_ROLE_SLAVE
- 1);
5989 buf
= ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY
, request
, 0);
5990 nrr
= ofpbuf_put_zeros(buf
, sizeof *nrr
);
5991 nrr
->role
= htonl(rr
->role
- 1);
5999 /* Encodes "role status" message 'status' for sending in the given
6000 * 'protocol'. Returns the role status message, if 'protocol' supports them,
6001 * otherwise a null pointer. */
6003 ofputil_encode_role_status(const struct ofputil_role_status
*status
,
6004 enum ofputil_protocol protocol
)
6006 enum ofp_version version
;
6008 version
= ofputil_protocol_to_ofp_version(protocol
);
6009 if (version
>= OFP14_VERSION
) {
6010 struct ofp14_role_status
*rstatus
;
6013 buf
= ofpraw_alloc_xid(OFPRAW_OFPT14_ROLE_STATUS
, version
, htonl(0),
6015 rstatus
= ofpbuf_put_zeros(buf
, sizeof *rstatus
);
6016 rstatus
->role
= htonl(status
->role
);
6017 rstatus
->reason
= status
->reason
;
6018 rstatus
->generation_id
= htonll(status
->generation_id
);
6027 ofputil_decode_role_status(const struct ofp_header
*oh
,
6028 struct ofputil_role_status
*rs
)
6030 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
6031 enum ofpraw raw
= ofpraw_pull_assert(&b
);
6032 ovs_assert(raw
== OFPRAW_OFPT14_ROLE_STATUS
);
6034 const struct ofp14_role_status
*r
= b
.msg
;
6035 if (r
->role
!= htonl(OFPCR12_ROLE_NOCHANGE
) &&
6036 r
->role
!= htonl(OFPCR12_ROLE_EQUAL
) &&
6037 r
->role
!= htonl(OFPCR12_ROLE_MASTER
) &&
6038 r
->role
!= htonl(OFPCR12_ROLE_SLAVE
)) {
6039 return OFPERR_OFPRRFC_BAD_ROLE
;
6042 rs
->role
= ntohl(r
->role
);
6043 rs
->generation_id
= ntohll(r
->generation_id
);
6044 rs
->reason
= r
->reason
;
6049 /* Encodes 'rf' according to 'protocol', and returns the encoded message.
6050 * 'protocol' must be for OpenFlow 1.4 or later. */
6052 ofputil_encode_requestforward(const struct ofputil_requestforward
*rf
,
6053 enum ofputil_protocol protocol
)
6055 enum ofp_version ofp_version
= ofputil_protocol_to_ofp_version(protocol
);
6056 struct ofpbuf
*inner
;
6058 switch (rf
->reason
) {
6059 case OFPRFR_GROUP_MOD
:
6060 inner
= ofputil_encode_group_mod(ofp_version
, rf
->group_mod
);
6063 case OFPRFR_METER_MOD
:
6064 inner
= ofputil_encode_meter_mod(ofp_version
, rf
->meter_mod
);
6067 case OFPRFR_N_REASONS
:
6072 struct ofp_header
*inner_oh
= inner
->data
;
6073 inner_oh
->xid
= rf
->xid
;
6074 inner_oh
->length
= htons(inner
->size
);
6076 struct ofpbuf
*outer
= ofpraw_alloc_xid(OFPRAW_OFPT14_REQUESTFORWARD
,
6077 ofp_version
, htonl(0),
6079 ofpbuf_put(outer
, inner
->data
, inner
->size
);
6080 ofpbuf_delete(inner
);
6085 /* Decodes OFPT_REQUESTFORWARD message 'outer'. On success, puts the decoded
6086 * form into '*rf' and returns 0, and the caller is later responsible for
6087 * freeing the content of 'rf', with ofputil_destroy_requestforward(rf). On
6088 * failure, returns an ofperr and '*rf' is indeterminate. */
6090 ofputil_decode_requestforward(const struct ofp_header
*outer
,
6091 struct ofputil_requestforward
*rf
)
6093 struct ofpbuf b
= ofpbuf_const_initializer(outer
, ntohs(outer
->length
));
6095 /* Skip past outer message. */
6096 enum ofpraw outer_raw
= ofpraw_pull_assert(&b
);
6097 ovs_assert(outer_raw
== OFPRAW_OFPT14_REQUESTFORWARD
);
6099 /* Validate inner message. */
6100 if (b
.size
< sizeof(struct ofp_header
)) {
6101 return OFPERR_OFPBFC_MSG_BAD_LEN
;
6103 const struct ofp_header
*inner
= b
.data
;
6104 unsigned int inner_len
= ntohs(inner
->length
);
6105 if (inner_len
< sizeof(struct ofp_header
) || inner_len
> b
.size
) {
6106 return OFPERR_OFPBFC_MSG_BAD_LEN
;
6108 if (inner
->version
!= outer
->version
) {
6109 return OFPERR_OFPBRC_BAD_VERSION
;
6112 /* Parse inner message. */
6114 enum ofperr error
= ofptype_decode(&type
, inner
);
6119 rf
->xid
= inner
->xid
;
6120 if (type
== OFPTYPE_GROUP_MOD
) {
6121 rf
->reason
= OFPRFR_GROUP_MOD
;
6122 rf
->group_mod
= xmalloc(sizeof *rf
->group_mod
);
6123 error
= ofputil_decode_group_mod(inner
, rf
->group_mod
);
6125 free(rf
->group_mod
);
6128 } else if (type
== OFPTYPE_METER_MOD
) {
6129 rf
->reason
= OFPRFR_METER_MOD
;
6130 rf
->meter_mod
= xmalloc(sizeof *rf
->meter_mod
);
6131 ofpbuf_init(&rf
->bands
, 64);
6132 error
= ofputil_decode_meter_mod(inner
, rf
->meter_mod
, &rf
->bands
);
6134 free(rf
->meter_mod
);
6135 ofpbuf_uninit(&rf
->bands
);
6139 return OFPERR_OFPBFC_MSG_UNSUP
;
6145 /* Frees the content of 'rf', which should have been initialized through a
6146 * successful call to ofputil_decode_requestforward(). */
6148 ofputil_destroy_requestforward(struct ofputil_requestforward
*rf
)
6154 switch (rf
->reason
) {
6155 case OFPRFR_GROUP_MOD
:
6156 ofputil_uninit_group_mod(rf
->group_mod
);
6157 free(rf
->group_mod
);
6160 case OFPRFR_METER_MOD
:
6161 ofpbuf_uninit(&rf
->bands
);
6162 free(rf
->meter_mod
);
6165 case OFPRFR_N_REASONS
:
6172 /* OpenFlow 1.0 and 1.1 don't distinguish between a field that cannot be
6173 * matched and a field that must be wildcarded. This function returns a bitmap
6174 * that contains both kinds of fields. */
6175 static struct mf_bitmap
6176 wild_or_nonmatchable_fields(const struct ofputil_table_features
*features
)
6178 struct mf_bitmap wc
= features
->match
;
6179 bitmap_not(wc
.bm
, MFF_N_IDS
);
6180 bitmap_or(wc
.bm
, features
->wildcard
.bm
, MFF_N_IDS
);
6184 struct ofp10_wc_map
{
6185 enum ofp10_flow_wildcards wc10
;
6186 enum mf_field_id mf
;
6189 static const struct ofp10_wc_map ofp10_wc_map
[] = {
6190 { OFPFW10_IN_PORT
, MFF_IN_PORT
},
6191 { OFPFW10_DL_VLAN
, MFF_VLAN_VID
},
6192 { OFPFW10_DL_SRC
, MFF_ETH_SRC
},
6193 { OFPFW10_DL_DST
, MFF_ETH_DST
},
6194 { OFPFW10_DL_TYPE
, MFF_ETH_TYPE
},
6195 { OFPFW10_NW_PROTO
, MFF_IP_PROTO
},
6196 { OFPFW10_TP_SRC
, MFF_TCP_SRC
},
6197 { OFPFW10_TP_DST
, MFF_TCP_DST
},
6198 { OFPFW10_NW_SRC_MASK
, MFF_IPV4_SRC
},
6199 { OFPFW10_NW_DST_MASK
, MFF_IPV4_DST
},
6200 { OFPFW10_DL_VLAN_PCP
, MFF_VLAN_PCP
},
6201 { OFPFW10_NW_TOS
, MFF_IP_DSCP
},
6205 mf_bitmap_to_of10(const struct mf_bitmap
*fields
)
6207 const struct ofp10_wc_map
*p
;
6210 for (p
= ofp10_wc_map
; p
< &ofp10_wc_map
[ARRAY_SIZE(ofp10_wc_map
)]; p
++) {
6211 if (bitmap_is_set(fields
->bm
, p
->mf
)) {
6218 static struct mf_bitmap
6219 mf_bitmap_from_of10(ovs_be32 wc10_
)
6221 struct mf_bitmap fields
= MF_BITMAP_INITIALIZER
;
6222 const struct ofp10_wc_map
*p
;
6223 uint32_t wc10
= ntohl(wc10_
);
6225 for (p
= ofp10_wc_map
; p
< &ofp10_wc_map
[ARRAY_SIZE(ofp10_wc_map
)]; p
++) {
6226 if (wc10
& p
->wc10
) {
6227 bitmap_set1(fields
.bm
, p
->mf
);
6234 ofputil_put_ofp10_table_stats(const struct ofputil_table_stats
*stats
,
6235 const struct ofputil_table_features
*features
,
6238 struct mf_bitmap wc
= wild_or_nonmatchable_fields(features
);
6239 struct ofp10_table_stats
*out
;
6241 out
= ofpbuf_put_zeros(buf
, sizeof *out
);
6242 out
->table_id
= features
->table_id
;
6243 ovs_strlcpy(out
->name
, features
->name
, sizeof out
->name
);
6244 out
->wildcards
= mf_bitmap_to_of10(&wc
);
6245 out
->max_entries
= htonl(features
->max_entries
);
6246 out
->active_count
= htonl(stats
->active_count
);
6247 put_32aligned_be64(&out
->lookup_count
, htonll(stats
->lookup_count
));
6248 put_32aligned_be64(&out
->matched_count
, htonll(stats
->matched_count
));
6251 struct ofp11_wc_map
{
6252 enum ofp11_flow_match_fields wc11
;
6253 enum mf_field_id mf
;
6256 static const struct ofp11_wc_map ofp11_wc_map
[] = {
6257 { OFPFMF11_IN_PORT
, MFF_IN_PORT
},
6258 { OFPFMF11_DL_VLAN
, MFF_VLAN_VID
},
6259 { OFPFMF11_DL_VLAN_PCP
, MFF_VLAN_PCP
},
6260 { OFPFMF11_DL_TYPE
, MFF_ETH_TYPE
},
6261 { OFPFMF11_NW_TOS
, MFF_IP_DSCP
},
6262 { OFPFMF11_NW_PROTO
, MFF_IP_PROTO
},
6263 { OFPFMF11_TP_SRC
, MFF_TCP_SRC
},
6264 { OFPFMF11_TP_DST
, MFF_TCP_DST
},
6265 { OFPFMF11_MPLS_LABEL
, MFF_MPLS_LABEL
},
6266 { OFPFMF11_MPLS_TC
, MFF_MPLS_TC
},
6267 /* I don't know what OFPFMF11_TYPE means. */
6268 { OFPFMF11_DL_SRC
, MFF_ETH_SRC
},
6269 { OFPFMF11_DL_DST
, MFF_ETH_DST
},
6270 { OFPFMF11_NW_SRC
, MFF_IPV4_SRC
},
6271 { OFPFMF11_NW_DST
, MFF_IPV4_DST
},
6272 { OFPFMF11_METADATA
, MFF_METADATA
},
6276 mf_bitmap_to_of11(const struct mf_bitmap
*fields
)
6278 const struct ofp11_wc_map
*p
;
6281 for (p
= ofp11_wc_map
; p
< &ofp11_wc_map
[ARRAY_SIZE(ofp11_wc_map
)]; p
++) {
6282 if (bitmap_is_set(fields
->bm
, p
->mf
)) {
6289 static struct mf_bitmap
6290 mf_bitmap_from_of11(ovs_be32 wc11_
)
6292 struct mf_bitmap fields
= MF_BITMAP_INITIALIZER
;
6293 const struct ofp11_wc_map
*p
;
6294 uint32_t wc11
= ntohl(wc11_
);
6296 for (p
= ofp11_wc_map
; p
< &ofp11_wc_map
[ARRAY_SIZE(ofp11_wc_map
)]; p
++) {
6297 if (wc11
& p
->wc11
) {
6298 bitmap_set1(fields
.bm
, p
->mf
);
6305 ofputil_put_ofp11_table_stats(const struct ofputil_table_stats
*stats
,
6306 const struct ofputil_table_features
*features
,
6309 struct mf_bitmap wc
= wild_or_nonmatchable_fields(features
);
6310 struct ofp11_table_stats
*out
;
6312 out
= ofpbuf_put_zeros(buf
, sizeof *out
);
6313 out
->table_id
= features
->table_id
;
6314 ovs_strlcpy(out
->name
, features
->name
, sizeof out
->name
);
6315 out
->wildcards
= mf_bitmap_to_of11(&wc
);
6316 out
->match
= mf_bitmap_to_of11(&features
->match
);
6317 out
->instructions
= ovsinst_bitmap_to_openflow(
6318 features
->nonmiss
.instructions
, OFP11_VERSION
);
6319 out
->write_actions
= ofpact_bitmap_to_openflow(
6320 features
->nonmiss
.write
.ofpacts
, OFP11_VERSION
);
6321 out
->apply_actions
= ofpact_bitmap_to_openflow(
6322 features
->nonmiss
.apply
.ofpacts
, OFP11_VERSION
);
6323 out
->config
= htonl(features
->miss_config
);
6324 out
->max_entries
= htonl(features
->max_entries
);
6325 out
->active_count
= htonl(stats
->active_count
);
6326 out
->lookup_count
= htonll(stats
->lookup_count
);
6327 out
->matched_count
= htonll(stats
->matched_count
);
6331 ofputil_put_ofp12_table_stats(const struct ofputil_table_stats
*stats
,
6332 const struct ofputil_table_features
*features
,
6335 struct ofp12_table_stats
*out
;
6337 out
= ofpbuf_put_zeros(buf
, sizeof *out
);
6338 out
->table_id
= features
->table_id
;
6339 ovs_strlcpy(out
->name
, features
->name
, sizeof out
->name
);
6340 out
->match
= oxm_bitmap_from_mf_bitmap(&features
->match
, OFP12_VERSION
);
6341 out
->wildcards
= oxm_bitmap_from_mf_bitmap(&features
->wildcard
,
6343 out
->write_actions
= ofpact_bitmap_to_openflow(
6344 features
->nonmiss
.write
.ofpacts
, OFP12_VERSION
);
6345 out
->apply_actions
= ofpact_bitmap_to_openflow(
6346 features
->nonmiss
.apply
.ofpacts
, OFP12_VERSION
);
6347 out
->write_setfields
= oxm_bitmap_from_mf_bitmap(
6348 &features
->nonmiss
.write
.set_fields
, OFP12_VERSION
);
6349 out
->apply_setfields
= oxm_bitmap_from_mf_bitmap(
6350 &features
->nonmiss
.apply
.set_fields
, OFP12_VERSION
);
6351 out
->metadata_match
= features
->metadata_match
;
6352 out
->metadata_write
= features
->metadata_write
;
6353 out
->instructions
= ovsinst_bitmap_to_openflow(
6354 features
->nonmiss
.instructions
, OFP12_VERSION
);
6355 out
->config
= ofputil_encode_table_config(features
->miss_config
,
6356 OFPUTIL_TABLE_EVICTION_DEFAULT
,
6357 OFPUTIL_TABLE_VACANCY_DEFAULT
,
6359 out
->max_entries
= htonl(features
->max_entries
);
6360 out
->active_count
= htonl(stats
->active_count
);
6361 out
->lookup_count
= htonll(stats
->lookup_count
);
6362 out
->matched_count
= htonll(stats
->matched_count
);
6366 ofputil_put_ofp13_table_stats(const struct ofputil_table_stats
*stats
,
6369 struct ofp13_table_stats
*out
;
6371 out
= ofpbuf_put_zeros(buf
, sizeof *out
);
6372 out
->table_id
= stats
->table_id
;
6373 out
->active_count
= htonl(stats
->active_count
);
6374 out
->lookup_count
= htonll(stats
->lookup_count
);
6375 out
->matched_count
= htonll(stats
->matched_count
);
6379 ofputil_encode_table_stats_reply(const struct ofp_header
*request
)
6381 return ofpraw_alloc_stats_reply(request
, 0);
6385 ofputil_append_table_stats_reply(struct ofpbuf
*reply
,
6386 const struct ofputil_table_stats
*stats
,
6387 const struct ofputil_table_features
*features
)
6389 struct ofp_header
*oh
= reply
->header
;
6391 ovs_assert(stats
->table_id
== features
->table_id
);
6393 switch ((enum ofp_version
) oh
->version
) {
6395 ofputil_put_ofp10_table_stats(stats
, features
, reply
);
6399 ofputil_put_ofp11_table_stats(stats
, features
, reply
);
6403 ofputil_put_ofp12_table_stats(stats
, features
, reply
);
6410 ofputil_put_ofp13_table_stats(stats
, reply
);
6419 ofputil_decode_ofp10_table_stats(struct ofpbuf
*msg
,
6420 struct ofputil_table_stats
*stats
,
6421 struct ofputil_table_features
*features
)
6423 struct ofp10_table_stats
*ots
;
6425 ots
= ofpbuf_try_pull(msg
, sizeof *ots
);
6427 return OFPERR_OFPBRC_BAD_LEN
;
6430 features
->table_id
= ots
->table_id
;
6431 ovs_strlcpy(features
->name
, ots
->name
, sizeof features
->name
);
6432 features
->max_entries
= ntohl(ots
->max_entries
);
6433 features
->match
= features
->wildcard
= mf_bitmap_from_of10(ots
->wildcards
);
6435 stats
->table_id
= ots
->table_id
;
6436 stats
->active_count
= ntohl(ots
->active_count
);
6437 stats
->lookup_count
= ntohll(get_32aligned_be64(&ots
->lookup_count
));
6438 stats
->matched_count
= ntohll(get_32aligned_be64(&ots
->matched_count
));
6444 ofputil_decode_ofp11_table_stats(struct ofpbuf
*msg
,
6445 struct ofputil_table_stats
*stats
,
6446 struct ofputil_table_features
*features
)
6448 struct ofp11_table_stats
*ots
;
6450 ots
= ofpbuf_try_pull(msg
, sizeof *ots
);
6452 return OFPERR_OFPBRC_BAD_LEN
;
6455 features
->table_id
= ots
->table_id
;
6456 ovs_strlcpy(features
->name
, ots
->name
, sizeof features
->name
);
6457 features
->max_entries
= ntohl(ots
->max_entries
);
6458 features
->nonmiss
.instructions
= ovsinst_bitmap_from_openflow(
6459 ots
->instructions
, OFP11_VERSION
);
6460 features
->nonmiss
.write
.ofpacts
= ofpact_bitmap_from_openflow(
6461 ots
->write_actions
, OFP11_VERSION
);
6462 features
->nonmiss
.apply
.ofpacts
= ofpact_bitmap_from_openflow(
6463 ots
->write_actions
, OFP11_VERSION
);
6464 features
->miss
= features
->nonmiss
;
6465 features
->miss_config
= ofputil_decode_table_miss(ots
->config
,
6467 features
->match
= mf_bitmap_from_of11(ots
->match
);
6468 features
->wildcard
= mf_bitmap_from_of11(ots
->wildcards
);
6469 bitmap_or(features
->match
.bm
, features
->wildcard
.bm
, MFF_N_IDS
);
6471 stats
->table_id
= ots
->table_id
;
6472 stats
->active_count
= ntohl(ots
->active_count
);
6473 stats
->lookup_count
= ntohll(ots
->lookup_count
);
6474 stats
->matched_count
= ntohll(ots
->matched_count
);
6480 ofputil_decode_ofp12_table_stats(struct ofpbuf
*msg
,
6481 struct ofputil_table_stats
*stats
,
6482 struct ofputil_table_features
*features
)
6484 struct ofp12_table_stats
*ots
;
6486 ots
= ofpbuf_try_pull(msg
, sizeof *ots
);
6488 return OFPERR_OFPBRC_BAD_LEN
;
6491 features
->table_id
= ots
->table_id
;
6492 ovs_strlcpy(features
->name
, ots
->name
, sizeof features
->name
);
6493 features
->metadata_match
= ots
->metadata_match
;
6494 features
->metadata_write
= ots
->metadata_write
;
6495 features
->miss_config
= ofputil_decode_table_miss(ots
->config
,
6497 features
->max_entries
= ntohl(ots
->max_entries
);
6499 features
->nonmiss
.instructions
= ovsinst_bitmap_from_openflow(
6500 ots
->instructions
, OFP12_VERSION
);
6501 features
->nonmiss
.write
.ofpacts
= ofpact_bitmap_from_openflow(
6502 ots
->write_actions
, OFP12_VERSION
);
6503 features
->nonmiss
.apply
.ofpacts
= ofpact_bitmap_from_openflow(
6504 ots
->apply_actions
, OFP12_VERSION
);
6505 features
->nonmiss
.write
.set_fields
= oxm_bitmap_to_mf_bitmap(
6506 ots
->write_setfields
, OFP12_VERSION
);
6507 features
->nonmiss
.apply
.set_fields
= oxm_bitmap_to_mf_bitmap(
6508 ots
->apply_setfields
, OFP12_VERSION
);
6509 features
->miss
= features
->nonmiss
;
6511 features
->match
= oxm_bitmap_to_mf_bitmap(ots
->match
, OFP12_VERSION
);
6512 features
->wildcard
= oxm_bitmap_to_mf_bitmap(ots
->wildcards
,
6514 bitmap_or(features
->match
.bm
, features
->wildcard
.bm
, MFF_N_IDS
);
6516 stats
->table_id
= ots
->table_id
;
6517 stats
->active_count
= ntohl(ots
->active_count
);
6518 stats
->lookup_count
= ntohll(ots
->lookup_count
);
6519 stats
->matched_count
= ntohll(ots
->matched_count
);
6525 ofputil_decode_ofp13_table_stats(struct ofpbuf
*msg
,
6526 struct ofputil_table_stats
*stats
,
6527 struct ofputil_table_features
*features
)
6529 struct ofp13_table_stats
*ots
;
6531 ots
= ofpbuf_try_pull(msg
, sizeof *ots
);
6533 return OFPERR_OFPBRC_BAD_LEN
;
6536 features
->table_id
= ots
->table_id
;
6538 stats
->table_id
= ots
->table_id
;
6539 stats
->active_count
= ntohl(ots
->active_count
);
6540 stats
->lookup_count
= ntohll(ots
->lookup_count
);
6541 stats
->matched_count
= ntohll(ots
->matched_count
);
6547 ofputil_decode_table_stats_reply(struct ofpbuf
*msg
,
6548 struct ofputil_table_stats
*stats
,
6549 struct ofputil_table_features
*features
)
6551 const struct ofp_header
*oh
;
6554 ofpraw_pull_assert(msg
);
6562 memset(stats
, 0, sizeof *stats
);
6563 memset(features
, 0, sizeof *features
);
6564 features
->supports_eviction
= -1;
6565 features
->supports_vacancy_events
= -1;
6567 switch ((enum ofp_version
) oh
->version
) {
6569 return ofputil_decode_ofp10_table_stats(msg
, stats
, features
);
6572 return ofputil_decode_ofp11_table_stats(msg
, stats
, features
);
6575 return ofputil_decode_ofp12_table_stats(msg
, stats
, features
);
6581 return ofputil_decode_ofp13_table_stats(msg
, stats
, features
);
6588 /* ofputil_flow_monitor_request */
6590 /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
6591 * ofputil_flow_monitor_request in 'rq'.
6593 * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
6594 * message. Calling this function multiple times for a single 'msg' iterates
6595 * through the requests. The caller must initially leave 'msg''s layer
6596 * pointers null and not modify them between calls.
6598 * Returns 0 if successful, EOF if no requests were left in this 'msg',
6599 * otherwise an OFPERR_* value. */
6601 ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request
*rq
,
6604 struct nx_flow_monitor_request
*nfmr
;
6608 ofpraw_pull_assert(msg
);
6615 nfmr
= ofpbuf_try_pull(msg
, sizeof *nfmr
);
6617 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW_MONITOR request has %"PRIu32
" "
6618 "leftover bytes at end", msg
->size
);
6619 return OFPERR_OFPBRC_BAD_LEN
;
6622 flags
= ntohs(nfmr
->flags
);
6623 if (!(flags
& (NXFMF_ADD
| NXFMF_DELETE
| NXFMF_MODIFY
))
6624 || flags
& ~(NXFMF_INITIAL
| NXFMF_ADD
| NXFMF_DELETE
6625 | NXFMF_MODIFY
| NXFMF_ACTIONS
| NXFMF_OWN
)) {
6626 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW_MONITOR has bad flags %#"PRIx16
,
6628 return OFPERR_OFPMOFC_BAD_FLAGS
;
6631 if (!is_all_zeros(nfmr
->zeros
, sizeof nfmr
->zeros
)) {
6632 return OFPERR_NXBRC_MUST_BE_ZERO
;
6635 rq
->id
= ntohl(nfmr
->id
);
6637 rq
->out_port
= u16_to_ofp(ntohs(nfmr
->out_port
));
6638 rq
->table_id
= nfmr
->table_id
;
6640 return nx_pull_match(msg
, ntohs(nfmr
->match_len
), &rq
->match
, NULL
,
6645 ofputil_append_flow_monitor_request(
6646 const struct ofputil_flow_monitor_request
*rq
, struct ofpbuf
*msg
)
6648 struct nx_flow_monitor_request
*nfmr
;
6653 ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST
, OFP10_VERSION
, msg
);
6656 start_ofs
= msg
->size
;
6657 ofpbuf_put_zeros(msg
, sizeof *nfmr
);
6658 match_len
= nx_put_match(msg
, &rq
->match
, htonll(0), htonll(0));
6660 nfmr
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *nfmr
);
6661 nfmr
->id
= htonl(rq
->id
);
6662 nfmr
->flags
= htons(rq
->flags
);
6663 nfmr
->out_port
= htons(ofp_to_u16(rq
->out_port
));
6664 nfmr
->match_len
= htons(match_len
);
6665 nfmr
->table_id
= rq
->table_id
;
6668 /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
6669 * into an abstract ofputil_flow_update in 'update'. The caller must have
6670 * initialized update->match to point to space allocated for a match.
6672 * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
6673 * actions (except for NXFME_ABBREV, which never includes actions). The caller
6674 * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
6675 * will point into the 'ofpacts' buffer.
6677 * Multiple flow updates can be packed into a single OpenFlow message. Calling
6678 * this function multiple times for a single 'msg' iterates through the
6679 * updates. The caller must initially leave 'msg''s layer pointers null and
6680 * not modify them between calls.
6682 * Returns 0 if successful, EOF if no updates were left in this 'msg',
6683 * otherwise an OFPERR_* value. */
6685 ofputil_decode_flow_update(struct ofputil_flow_update
*update
,
6686 struct ofpbuf
*msg
, struct ofpbuf
*ofpacts
)
6688 struct nx_flow_update_header
*nfuh
;
6689 unsigned int length
;
6690 struct ofp_header
*oh
;
6693 ofpraw_pull_assert(msg
);
6696 ofpbuf_clear(ofpacts
);
6701 if (msg
->size
< sizeof(struct nx_flow_update_header
)) {
6708 update
->event
= ntohs(nfuh
->event
);
6709 length
= ntohs(nfuh
->length
);
6710 if (length
> msg
->size
|| length
% 8) {
6714 if (update
->event
== NXFME_ABBREV
) {
6715 struct nx_flow_update_abbrev
*nfua
;
6717 if (length
!= sizeof *nfua
) {
6721 nfua
= ofpbuf_pull(msg
, sizeof *nfua
);
6722 update
->xid
= nfua
->xid
;
6724 } else if (update
->event
== NXFME_ADDED
6725 || update
->event
== NXFME_DELETED
6726 || update
->event
== NXFME_MODIFIED
) {
6727 struct nx_flow_update_full
*nfuf
;
6728 unsigned int actions_len
;
6729 unsigned int match_len
;
6732 if (length
< sizeof *nfuf
) {
6736 nfuf
= ofpbuf_pull(msg
, sizeof *nfuf
);
6737 match_len
= ntohs(nfuf
->match_len
);
6738 if (sizeof *nfuf
+ match_len
> length
) {
6742 update
->reason
= ntohs(nfuf
->reason
);
6743 update
->idle_timeout
= ntohs(nfuf
->idle_timeout
);
6744 update
->hard_timeout
= ntohs(nfuf
->hard_timeout
);
6745 update
->table_id
= nfuf
->table_id
;
6746 update
->cookie
= nfuf
->cookie
;
6747 update
->priority
= ntohs(nfuf
->priority
);
6749 error
= nx_pull_match(msg
, match_len
, &update
->match
, NULL
, NULL
, NULL
,
6755 actions_len
= length
- sizeof *nfuf
- ROUND_UP(match_len
, 8);
6756 error
= ofpacts_pull_openflow_actions(msg
, actions_len
, oh
->version
,
6762 update
->ofpacts
= ofpacts
->data
;
6763 update
->ofpacts_len
= ofpacts
->size
;
6766 VLOG_WARN_RL(&bad_ofmsg_rl
,
6767 "NXST_FLOW_MONITOR reply has bad event %"PRIu16
,
6768 ntohs(nfuh
->event
));
6769 return OFPERR_NXBRC_FM_BAD_EVENT
;
6773 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW_MONITOR reply has %"PRIu32
" "
6774 "leftover bytes at end", msg
->size
);
6775 return OFPERR_OFPBRC_BAD_LEN
;
6779 ofputil_decode_flow_monitor_cancel(const struct ofp_header
*oh
)
6781 const struct nx_flow_monitor_cancel
*cancel
= ofpmsg_body(oh
);
6783 return ntohl(cancel
->id
);
6787 ofputil_encode_flow_monitor_cancel(uint32_t id
)
6789 struct nx_flow_monitor_cancel
*nfmc
;
6792 msg
= ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL
, OFP10_VERSION
, 0);
6793 nfmc
= ofpbuf_put_uninit(msg
, sizeof *nfmc
);
6794 nfmc
->id
= htonl(id
);
6799 ofputil_start_flow_update(struct ovs_list
*replies
)
6803 msg
= ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY
, OFP10_VERSION
,
6806 ovs_list_init(replies
);
6807 ovs_list_push_back(replies
, &msg
->list_node
);
6811 ofputil_append_flow_update(const struct ofputil_flow_update
*update
,
6812 struct ovs_list
*replies
,
6813 const struct tun_table
*tun_table
)
6815 struct ofputil_flow_update
*update_
=
6816 CONST_CAST(struct ofputil_flow_update
*, update
);
6817 const struct tun_table
*orig_tun_table
;
6818 enum ofp_version version
= ofpmp_version(replies
);
6819 struct nx_flow_update_header
*nfuh
;
6823 orig_tun_table
= update
->match
.flow
.tunnel
.metadata
.tab
;
6824 update_
->match
.flow
.tunnel
.metadata
.tab
= tun_table
;
6826 msg
= ofpbuf_from_list(ovs_list_back(replies
));
6827 start_ofs
= msg
->size
;
6829 if (update
->event
== NXFME_ABBREV
) {
6830 struct nx_flow_update_abbrev
*nfua
;
6832 nfua
= ofpbuf_put_zeros(msg
, sizeof *nfua
);
6833 nfua
->xid
= update
->xid
;
6835 struct nx_flow_update_full
*nfuf
;
6838 ofpbuf_put_zeros(msg
, sizeof *nfuf
);
6839 match_len
= nx_put_match(msg
, &update
->match
, htonll(0), htonll(0));
6840 ofpacts_put_openflow_actions(update
->ofpacts
, update
->ofpacts_len
, msg
,
6842 nfuf
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *nfuf
);
6843 nfuf
->reason
= htons(update
->reason
);
6844 nfuf
->priority
= htons(update
->priority
);
6845 nfuf
->idle_timeout
= htons(update
->idle_timeout
);
6846 nfuf
->hard_timeout
= htons(update
->hard_timeout
);
6847 nfuf
->match_len
= htons(match_len
);
6848 nfuf
->table_id
= update
->table_id
;
6849 nfuf
->cookie
= update
->cookie
;
6852 nfuh
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *nfuh
);
6853 nfuh
->length
= htons(msg
->size
- start_ofs
);
6854 nfuh
->event
= htons(update
->event
);
6856 ofpmp_postappend(replies
, start_ofs
);
6857 update_
->match
.flow
.tunnel
.metadata
.tab
= orig_tun_table
;
6861 ofputil_encode_packet_out(const struct ofputil_packet_out
*po
,
6862 enum ofputil_protocol protocol
)
6864 enum ofp_version ofp_version
= ofputil_protocol_to_ofp_version(protocol
);
6868 size
= po
->ofpacts_len
;
6869 if (po
->buffer_id
== UINT32_MAX
) {
6870 size
+= po
->packet_len
;
6873 switch (ofp_version
) {
6874 case OFP10_VERSION
: {
6875 struct ofp10_packet_out
*opo
;
6878 msg
= ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT
, OFP10_VERSION
, size
);
6879 ofpbuf_put_zeros(msg
, sizeof *opo
);
6880 actions_ofs
= msg
->size
;
6881 ofpacts_put_openflow_actions(po
->ofpacts
, po
->ofpacts_len
, msg
,
6885 opo
->buffer_id
= htonl(po
->buffer_id
);
6886 opo
->in_port
= htons(ofp_to_u16(po
->in_port
));
6887 opo
->actions_len
= htons(msg
->size
- actions_ofs
);
6896 case OFP16_VERSION
: {
6897 struct ofp11_packet_out
*opo
;
6900 msg
= ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT
, ofp_version
, size
);
6901 ofpbuf_put_zeros(msg
, sizeof *opo
);
6902 len
= ofpacts_put_openflow_actions(po
->ofpacts
, po
->ofpacts_len
, msg
,
6905 opo
->buffer_id
= htonl(po
->buffer_id
);
6906 opo
->in_port
= ofputil_port_to_ofp11(po
->in_port
);
6907 opo
->actions_len
= htons(len
);
6915 if (po
->buffer_id
== UINT32_MAX
) {
6916 ofpbuf_put(msg
, po
->packet
, po
->packet_len
);
6919 ofpmsg_update_length(msg
);
6924 /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
6926 make_echo_request(enum ofp_version ofp_version
)
6928 return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST
, ofp_version
,
6932 /* Creates and returns an OFPT_ECHO_REPLY message matching the
6933 * OFPT_ECHO_REQUEST message in 'rq'. */
6935 make_echo_reply(const struct ofp_header
*rq
)
6937 struct ofpbuf rq_buf
= ofpbuf_const_initializer(rq
, ntohs(rq
->length
));
6938 ofpraw_pull_assert(&rq_buf
);
6940 struct ofpbuf
*reply
= ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY
,
6942 ofpbuf_put(reply
, rq_buf
.data
, rq_buf
.size
);
6947 ofputil_encode_barrier_request(enum ofp_version ofp_version
)
6951 switch (ofp_version
) {
6958 type
= OFPRAW_OFPT11_BARRIER_REQUEST
;
6962 type
= OFPRAW_OFPT10_BARRIER_REQUEST
;
6969 return ofpraw_alloc(type
, ofp_version
, 0);
6973 ofputil_frag_handling_to_string(enum ofputil_frag_handling frag
)
6976 case OFPUTIL_FRAG_NORMAL
: return "normal";
6977 case OFPUTIL_FRAG_DROP
: return "drop";
6978 case OFPUTIL_FRAG_REASM
: return "reassemble";
6979 case OFPUTIL_FRAG_NX_MATCH
: return "nx-match";
6986 ofputil_frag_handling_from_string(const char *s
,
6987 enum ofputil_frag_handling
*frag
)
6989 if (!strcasecmp(s
, "normal")) {
6990 *frag
= OFPUTIL_FRAG_NORMAL
;
6991 } else if (!strcasecmp(s
, "drop")) {
6992 *frag
= OFPUTIL_FRAG_DROP
;
6993 } else if (!strcasecmp(s
, "reassemble")) {
6994 *frag
= OFPUTIL_FRAG_REASM
;
6995 } else if (!strcasecmp(s
, "nx-match")) {
6996 *frag
= OFPUTIL_FRAG_NX_MATCH
;
7003 /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
7004 * port number and stores the latter in '*ofp10_port', for the purpose of
7005 * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
7006 * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'.
7008 * See the definition of OFP11_MAX for an explanation of the mapping. */
7010 ofputil_port_from_ofp11(ovs_be32 ofp11_port
, ofp_port_t
*ofp10_port
)
7012 uint32_t ofp11_port_h
= ntohl(ofp11_port
);
7014 if (ofp11_port_h
< ofp_to_u16(OFPP_MAX
)) {
7015 *ofp10_port
= u16_to_ofp(ofp11_port_h
);
7017 } else if (ofp11_port_h
>= ofp11_to_u32(OFPP11_MAX
)) {
7018 *ofp10_port
= u16_to_ofp(ofp11_port_h
- OFPP11_OFFSET
);
7021 *ofp10_port
= OFPP_NONE
;
7022 VLOG_WARN_RL(&bad_ofmsg_rl
, "port %"PRIu32
" is outside the supported "
7023 "range 0 through %d or 0x%"PRIx32
" through 0x%"PRIx32
,
7024 ofp11_port_h
, ofp_to_u16(OFPP_MAX
) - 1,
7025 ofp11_to_u32(OFPP11_MAX
), UINT32_MAX
);
7026 return OFPERR_OFPBAC_BAD_OUT_PORT
;
7030 /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
7031 * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
7033 * See the definition of OFP11_MAX for an explanation of the mapping. */
7035 ofputil_port_to_ofp11(ofp_port_t ofp10_port
)
7037 return htonl(ofp_to_u16(ofp10_port
) < ofp_to_u16(OFPP_MAX
)
7038 ? ofp_to_u16(ofp10_port
)
7039 : ofp_to_u16(ofp10_port
) + OFPP11_OFFSET
);
7042 #define OFPUTIL_NAMED_PORTS \
7043 OFPUTIL_NAMED_PORT(IN_PORT) \
7044 OFPUTIL_NAMED_PORT(TABLE) \
7045 OFPUTIL_NAMED_PORT(NORMAL) \
7046 OFPUTIL_NAMED_PORT(FLOOD) \
7047 OFPUTIL_NAMED_PORT(ALL) \
7048 OFPUTIL_NAMED_PORT(CONTROLLER) \
7049 OFPUTIL_NAMED_PORT(LOCAL) \
7050 OFPUTIL_NAMED_PORT(ANY) \
7051 OFPUTIL_NAMED_PORT(UNSET)
7053 /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
7054 #define OFPUTIL_NAMED_PORTS_WITH_NONE \
7055 OFPUTIL_NAMED_PORTS \
7056 OFPUTIL_NAMED_PORT(NONE)
7058 /* Stores the port number represented by 's' into '*portp'. 's' may be an
7059 * integer or, for reserved ports, the standard OpenFlow name for the port
7062 * Returns true if successful, false if 's' is not a valid OpenFlow port number
7063 * or name. The caller should issue an error message in this case, because
7064 * this function usually does not. (This gives the caller an opportunity to
7065 * look up the port name another way, e.g. by contacting the switch and listing
7066 * the names of all its ports).
7068 * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
7069 * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
7070 * range as described in include/openflow/openflow-1.1.h. */
7072 ofputil_port_from_string(const char *s
, ofp_port_t
*portp
)
7074 unsigned int port32
; /* int is at least 32 bits wide. */
7077 VLOG_WARN("Negative value %s is not a valid port number.", s
);
7081 if (str_to_uint(s
, 10, &port32
)) {
7082 if (port32
< ofp_to_u16(OFPP_MAX
)) {
7084 } else if (port32
< ofp_to_u16(OFPP_FIRST_RESV
)) {
7085 VLOG_WARN("port %u is a reserved OF1.0 port number that will "
7086 "be translated to %u when talking to an OF1.1 or "
7087 "later controller", port32
, port32
+ OFPP11_OFFSET
);
7088 } else if (port32
<= ofp_to_u16(OFPP_LAST_RESV
)) {
7089 char name
[OFP_MAX_PORT_NAME_LEN
];
7091 ofputil_port_to_string(u16_to_ofp(port32
), name
, sizeof name
);
7092 VLOG_WARN_ONCE("referring to port %s as %"PRIu32
" is deprecated "
7093 "for compatibility with OpenFlow 1.1 and later",
7095 } else if (port32
< ofp11_to_u32(OFPP11_MAX
)) {
7096 VLOG_WARN("port %u is outside the supported range 0 through "
7097 "%"PRIx16
" or 0x%x through 0x%"PRIx32
, port32
,
7098 UINT16_MAX
, ofp11_to_u32(OFPP11_MAX
), UINT32_MAX
);
7101 port32
-= OFPP11_OFFSET
;
7104 *portp
= u16_to_ofp(port32
);
7111 static const struct pair pairs
[] = {
7112 #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
7113 OFPUTIL_NAMED_PORTS_WITH_NONE
7114 #undef OFPUTIL_NAMED_PORT
7116 const struct pair
*p
;
7118 for (p
= pairs
; p
< &pairs
[ARRAY_SIZE(pairs
)]; p
++) {
7119 if (!strcasecmp(s
, p
->name
)) {
7128 /* Appends to 's' a string representation of the OpenFlow port number 'port'.
7129 * Most ports' string representation is just the port number, but for special
7130 * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
7132 ofputil_format_port(ofp_port_t port
, struct ds
*s
)
7134 char name
[OFP_MAX_PORT_NAME_LEN
];
7136 ofputil_port_to_string(port
, name
, sizeof name
);
7137 ds_put_cstr(s
, name
);
7140 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
7141 * representation of OpenFlow port number 'port'. Most ports are represented
7142 * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented
7143 * by name, e.g. "LOCAL". */
7145 ofputil_port_to_string(ofp_port_t port
,
7146 char namebuf
[OFP_MAX_PORT_NAME_LEN
], size_t bufsize
)
7149 #define OFPUTIL_NAMED_PORT(NAME) \
7151 ovs_strlcpy(namebuf, #NAME, bufsize); \
7154 #undef OFPUTIL_NAMED_PORT
7157 snprintf(namebuf
, bufsize
, "%"PRIu32
, port
);
7162 /* Stores the group id represented by 's' into '*group_idp'. 's' may be an
7163 * integer or, for reserved group IDs, the standard OpenFlow name for the group
7164 * (either "ANY" or "ALL").
7166 * Returns true if successful, false if 's' is not a valid OpenFlow group ID or
7169 ofputil_group_from_string(const char *s
, uint32_t *group_idp
)
7171 if (!strcasecmp(s
, "any")) {
7172 *group_idp
= OFPG_ANY
;
7173 } else if (!strcasecmp(s
, "all")) {
7174 *group_idp
= OFPG_ALL
;
7175 } else if (!str_to_uint(s
, 10, group_idp
)) {
7176 VLOG_WARN("%s is not a valid group ID. (Valid group IDs are "
7177 "32-bit nonnegative integers or the keywords ANY or "
7185 /* Appends to 's' a string representation of the OpenFlow group ID 'group_id'.
7186 * Most groups' string representation is just the number, but for special
7187 * groups, e.g. OFPG_ALL, it is the name, e.g. "ALL". */
7189 ofputil_format_group(uint32_t group_id
, struct ds
*s
)
7191 char name
[MAX_GROUP_NAME_LEN
];
7193 ofputil_group_to_string(group_id
, name
, sizeof name
);
7194 ds_put_cstr(s
, name
);
7198 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
7199 * representation of OpenFlow group ID 'group_id'. Most group are represented
7200 * as just their number, but special groups, e.g. OFPG_ALL, are represented
7201 * by name, e.g. "ALL". */
7203 ofputil_group_to_string(uint32_t group_id
,
7204 char namebuf
[MAX_GROUP_NAME_LEN
+ 1], size_t bufsize
)
7208 ovs_strlcpy(namebuf
, "ALL", bufsize
);
7212 ovs_strlcpy(namebuf
, "ANY", bufsize
);
7216 snprintf(namebuf
, bufsize
, "%"PRIu32
, group_id
);
7221 /* Given a buffer 'b' that contains an array of OpenFlow ports of type
7222 * 'ofp_version', tries to pull the first element from the array. If
7223 * successful, initializes '*pp' with an abstract representation of the
7224 * port and returns 0. If no ports remain to be decoded, returns EOF.
7225 * On an error, returns a positive OFPERR_* value. */
7227 ofputil_pull_phy_port(enum ofp_version ofp_version
, struct ofpbuf
*b
,
7228 struct ofputil_phy_port
*pp
)
7230 memset(pp
, 0, sizeof *pp
);
7232 switch (ofp_version
) {
7233 case OFP10_VERSION
: {
7234 const struct ofp10_phy_port
*opp
= ofpbuf_try_pull(b
, sizeof *opp
);
7235 return opp
? ofputil_decode_ofp10_phy_port(pp
, opp
) : EOF
;
7239 case OFP13_VERSION
: {
7240 const struct ofp11_port
*op
= ofpbuf_try_pull(b
, sizeof *op
);
7241 return op
? ofputil_decode_ofp11_port(pp
, op
) : EOF
;
7246 return b
->size
? ofputil_pull_ofp14_port(pp
, b
) : EOF
;
7253 ofputil_normalize_match__(struct match
*match
, bool may_log
)
7256 MAY_NW_ADDR
= 1 << 0, /* nw_src, nw_dst */
7257 MAY_TP_ADDR
= 1 << 1, /* tp_src, tp_dst */
7258 MAY_NW_PROTO
= 1 << 2, /* nw_proto */
7259 MAY_IPVx
= 1 << 3, /* tos, frag, ttl */
7260 MAY_ARP_SHA
= 1 << 4, /* arp_sha */
7261 MAY_ARP_THA
= 1 << 5, /* arp_tha */
7262 MAY_IPV6
= 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */
7263 MAY_ND_TARGET
= 1 << 7, /* nd_target */
7264 MAY_MPLS
= 1 << 8, /* mpls label and tc */
7267 struct flow_wildcards wc
;
7269 /* Figure out what fields may be matched. */
7270 if (match
->flow
.dl_type
== htons(ETH_TYPE_IP
)) {
7271 may_match
= MAY_NW_PROTO
| MAY_IPVx
| MAY_NW_ADDR
;
7272 if (match
->flow
.nw_proto
== IPPROTO_TCP
||
7273 match
->flow
.nw_proto
== IPPROTO_UDP
||
7274 match
->flow
.nw_proto
== IPPROTO_SCTP
||
7275 match
->flow
.nw_proto
== IPPROTO_ICMP
) {
7276 may_match
|= MAY_TP_ADDR
;
7278 } else if (match
->flow
.dl_type
== htons(ETH_TYPE_IPV6
)) {
7279 may_match
= MAY_NW_PROTO
| MAY_IPVx
| MAY_IPV6
;
7280 if (match
->flow
.nw_proto
== IPPROTO_TCP
||
7281 match
->flow
.nw_proto
== IPPROTO_UDP
||
7282 match
->flow
.nw_proto
== IPPROTO_SCTP
) {
7283 may_match
|= MAY_TP_ADDR
;
7284 } else if (match
->flow
.nw_proto
== IPPROTO_ICMPV6
) {
7285 may_match
|= MAY_TP_ADDR
;
7286 if (match
->flow
.tp_src
== htons(ND_NEIGHBOR_SOLICIT
)) {
7287 may_match
|= MAY_ND_TARGET
| MAY_ARP_SHA
;
7288 } else if (match
->flow
.tp_src
== htons(ND_NEIGHBOR_ADVERT
)) {
7289 may_match
|= MAY_ND_TARGET
| MAY_ARP_THA
;
7292 } else if (match
->flow
.dl_type
== htons(ETH_TYPE_ARP
) ||
7293 match
->flow
.dl_type
== htons(ETH_TYPE_RARP
)) {
7294 may_match
= MAY_NW_PROTO
| MAY_NW_ADDR
| MAY_ARP_SHA
| MAY_ARP_THA
;
7295 } else if (eth_type_mpls(match
->flow
.dl_type
)) {
7296 may_match
= MAY_MPLS
;
7301 /* Clear the fields that may not be matched. */
7303 if (!(may_match
& MAY_NW_ADDR
)) {
7304 wc
.masks
.nw_src
= wc
.masks
.nw_dst
= htonl(0);
7306 if (!(may_match
& MAY_TP_ADDR
)) {
7307 wc
.masks
.tp_src
= wc
.masks
.tp_dst
= htons(0);
7309 if (!(may_match
& MAY_NW_PROTO
)) {
7310 wc
.masks
.nw_proto
= 0;
7312 if (!(may_match
& MAY_IPVx
)) {
7313 wc
.masks
.nw_tos
= 0;
7314 wc
.masks
.nw_ttl
= 0;
7316 if (!(may_match
& MAY_ARP_SHA
)) {
7317 WC_UNMASK_FIELD(&wc
, arp_sha
);
7319 if (!(may_match
& MAY_ARP_THA
)) {
7320 WC_UNMASK_FIELD(&wc
, arp_tha
);
7322 if (!(may_match
& MAY_IPV6
)) {
7323 wc
.masks
.ipv6_src
= wc
.masks
.ipv6_dst
= in6addr_any
;
7324 wc
.masks
.ipv6_label
= htonl(0);
7326 if (!(may_match
& MAY_ND_TARGET
)) {
7327 wc
.masks
.nd_target
= in6addr_any
;
7329 if (!(may_match
& MAY_MPLS
)) {
7330 memset(wc
.masks
.mpls_lse
, 0, sizeof wc
.masks
.mpls_lse
);
7333 /* Log any changes. */
7334 if (!flow_wildcards_equal(&wc
, &match
->wc
)) {
7335 bool log
= may_log
&& !VLOG_DROP_INFO(&bad_ofmsg_rl
);
7336 char *pre
= log
? match_to_string(match
, OFP_DEFAULT_PRIORITY
) : NULL
;
7339 match_zero_wildcarded_fields(match
);
7342 char *post
= match_to_string(match
, OFP_DEFAULT_PRIORITY
);
7343 VLOG_INFO("normalization changed ofp_match, details:");
7344 VLOG_INFO(" pre: %s", pre
);
7345 VLOG_INFO("post: %s", post
);
7352 /* "Normalizes" the wildcards in 'match'. That means:
7354 * 1. If the type of level N is known, then only the valid fields for that
7355 * level may be specified. For example, ARP does not have a TOS field,
7356 * so nw_tos must be wildcarded if 'match' specifies an ARP flow.
7357 * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
7358 * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an
7361 * 2. If the type of level N is not known (or not understood by Open
7362 * vSwitch), then no fields at all for that level may be specified. For
7363 * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
7364 * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an
7367 * If this function changes 'match', it logs a rate-limited informational
7370 ofputil_normalize_match(struct match
*match
)
7372 ofputil_normalize_match__(match
, true);
7375 /* Same as ofputil_normalize_match() without the logging. Thus, this function
7376 * is suitable for a program's internal use, whereas ofputil_normalize_match()
7377 * sense for use on flows received from elsewhere (so that a bug in the program
7378 * that sent them can be reported and corrected). */
7380 ofputil_normalize_match_quiet(struct match
*match
)
7382 ofputil_normalize_match__(match
, false);
7386 parse_value(const char *s
, const char *delimiters
)
7390 /* Iterate until we reach a delimiter.
7392 * strchr(s, '\0') returns s+strlen(s), so this test handles the null
7393 * terminator at the end of 's'. */
7394 while (!strchr(delimiters
, s
[n
])) {
7409 } while (level
> 0);
7417 /* Parses a key or a key-value pair from '*stringp'.
7419 * On success: Stores the key into '*keyp'. Stores the value, if present, into
7420 * '*valuep', otherwise an empty string. Advances '*stringp' past the end of
7421 * the key-value pair, preparing it for another call. '*keyp' and '*valuep'
7422 * are substrings of '*stringp' created by replacing some of its bytes by null
7423 * terminators. Returns true.
7425 * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to
7426 * NULL and returns false. */
7428 ofputil_parse_key_value(char **stringp
, char **keyp
, char **valuep
)
7430 /* Skip white space and delimiters. If that brings us to the end of the
7431 * input string, we are done and there are no more key-value pairs. */
7432 *stringp
+= strspn(*stringp
, ", \t\r\n");
7433 if (**stringp
== '\0') {
7434 *keyp
= *valuep
= NULL
;
7438 /* Extract the key and the delimiter that ends the key-value pair or begins
7439 * the value. Advance the input position past the key and delimiter. */
7440 char *key
= *stringp
;
7441 size_t key_len
= strcspn(key
, ":=(, \t\r\n");
7442 char key_delim
= key
[key_len
];
7443 key
[key_len
] = '\0';
7444 *stringp
+= key_len
+ (key_delim
!= '\0');
7446 /* Figure out what delimiter ends the value:
7448 * - If key_delim is ":" or "=", the value extends until white space
7451 * - If key_delim is "(", the value extends until ")".
7453 * If there is no value, we are done. */
7454 const char *value_delims
;
7455 if (key_delim
== ':' || key_delim
== '=') {
7456 value_delims
= ", \t\r\n";
7457 } else if (key_delim
== '(') {
7461 *valuep
= key
+ key_len
; /* Empty string. */
7465 /* Extract the value. Advance the input position past the value and
7467 char *value
= *stringp
;
7468 size_t value_len
= parse_value(value
, value_delims
);
7469 char value_delim
= value
[value_len
];
7470 value
[value_len
] = '\0';
7471 *stringp
+= value_len
+ (value_delim
!= '\0');
7478 /* Encode a dump ports request for 'port', the encoded message
7479 * will be for OpenFlow version 'ofp_version'. Returns message
7480 * as a struct ofpbuf. Returns encoded message on success, NULL on error */
7482 ofputil_encode_dump_ports_request(enum ofp_version ofp_version
, ofp_port_t port
)
7484 struct ofpbuf
*request
;
7486 switch (ofp_version
) {
7487 case OFP10_VERSION
: {
7488 struct ofp10_port_stats_request
*req
;
7489 request
= ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST
, ofp_version
, 0);
7490 req
= ofpbuf_put_zeros(request
, sizeof *req
);
7491 req
->port_no
= htons(ofp_to_u16(port
));
7499 case OFP16_VERSION
: {
7500 struct ofp11_port_stats_request
*req
;
7501 request
= ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST
, ofp_version
, 0);
7502 req
= ofpbuf_put_zeros(request
, sizeof *req
);
7503 req
->port_no
= ofputil_port_to_ofp11(port
);
7514 ofputil_port_stats_to_ofp10(const struct ofputil_port_stats
*ops
,
7515 struct ofp10_port_stats
*ps10
)
7517 ps10
->port_no
= htons(ofp_to_u16(ops
->port_no
));
7518 memset(ps10
->pad
, 0, sizeof ps10
->pad
);
7519 put_32aligned_be64(&ps10
->rx_packets
, htonll(ops
->stats
.rx_packets
));
7520 put_32aligned_be64(&ps10
->tx_packets
, htonll(ops
->stats
.tx_packets
));
7521 put_32aligned_be64(&ps10
->rx_bytes
, htonll(ops
->stats
.rx_bytes
));
7522 put_32aligned_be64(&ps10
->tx_bytes
, htonll(ops
->stats
.tx_bytes
));
7523 put_32aligned_be64(&ps10
->rx_dropped
, htonll(ops
->stats
.rx_dropped
));
7524 put_32aligned_be64(&ps10
->tx_dropped
, htonll(ops
->stats
.tx_dropped
));
7525 put_32aligned_be64(&ps10
->rx_errors
, htonll(ops
->stats
.rx_errors
));
7526 put_32aligned_be64(&ps10
->tx_errors
, htonll(ops
->stats
.tx_errors
));
7527 put_32aligned_be64(&ps10
->rx_frame_err
, htonll(ops
->stats
.rx_frame_errors
));
7528 put_32aligned_be64(&ps10
->rx_over_err
, htonll(ops
->stats
.rx_over_errors
));
7529 put_32aligned_be64(&ps10
->rx_crc_err
, htonll(ops
->stats
.rx_crc_errors
));
7530 put_32aligned_be64(&ps10
->collisions
, htonll(ops
->stats
.collisions
));
7534 ofputil_port_stats_to_ofp11(const struct ofputil_port_stats
*ops
,
7535 struct ofp11_port_stats
*ps11
)
7537 ps11
->port_no
= ofputil_port_to_ofp11(ops
->port_no
);
7538 memset(ps11
->pad
, 0, sizeof ps11
->pad
);
7539 ps11
->rx_packets
= htonll(ops
->stats
.rx_packets
);
7540 ps11
->tx_packets
= htonll(ops
->stats
.tx_packets
);
7541 ps11
->rx_bytes
= htonll(ops
->stats
.rx_bytes
);
7542 ps11
->tx_bytes
= htonll(ops
->stats
.tx_bytes
);
7543 ps11
->rx_dropped
= htonll(ops
->stats
.rx_dropped
);
7544 ps11
->tx_dropped
= htonll(ops
->stats
.tx_dropped
);
7545 ps11
->rx_errors
= htonll(ops
->stats
.rx_errors
);
7546 ps11
->tx_errors
= htonll(ops
->stats
.tx_errors
);
7547 ps11
->rx_frame_err
= htonll(ops
->stats
.rx_frame_errors
);
7548 ps11
->rx_over_err
= htonll(ops
->stats
.rx_over_errors
);
7549 ps11
->rx_crc_err
= htonll(ops
->stats
.rx_crc_errors
);
7550 ps11
->collisions
= htonll(ops
->stats
.collisions
);
7554 ofputil_port_stats_to_ofp13(const struct ofputil_port_stats
*ops
,
7555 struct ofp13_port_stats
*ps13
)
7557 ofputil_port_stats_to_ofp11(ops
, &ps13
->ps
);
7558 ps13
->duration_sec
= htonl(ops
->duration_sec
);
7559 ps13
->duration_nsec
= htonl(ops
->duration_nsec
);
7563 ofputil_append_ofp14_port_stats(const struct ofputil_port_stats
*ops
,
7564 struct ovs_list
*replies
)
7566 struct ofp14_port_stats_prop_ethernet
*eth
;
7567 struct intel_port_stats_rfc2819
*stats_rfc2819
;
7568 struct ofp14_port_stats
*ps14
;
7569 struct ofpbuf
*reply
;
7571 reply
= ofpmp_reserve(replies
, sizeof *ps14
+ sizeof *eth
+
7572 sizeof *stats_rfc2819
);
7574 ps14
= ofpbuf_put_uninit(reply
, sizeof *ps14
);
7575 ps14
->length
= htons(sizeof *ps14
+ sizeof *eth
+
7576 sizeof *stats_rfc2819
);
7577 memset(ps14
->pad
, 0, sizeof ps14
->pad
);
7578 ps14
->port_no
= ofputil_port_to_ofp11(ops
->port_no
);
7579 ps14
->duration_sec
= htonl(ops
->duration_sec
);
7580 ps14
->duration_nsec
= htonl(ops
->duration_nsec
);
7581 ps14
->rx_packets
= htonll(ops
->stats
.rx_packets
);
7582 ps14
->tx_packets
= htonll(ops
->stats
.tx_packets
);
7583 ps14
->rx_bytes
= htonll(ops
->stats
.rx_bytes
);
7584 ps14
->tx_bytes
= htonll(ops
->stats
.tx_bytes
);
7585 ps14
->rx_dropped
= htonll(ops
->stats
.rx_dropped
);
7586 ps14
->tx_dropped
= htonll(ops
->stats
.tx_dropped
);
7587 ps14
->rx_errors
= htonll(ops
->stats
.rx_errors
);
7588 ps14
->tx_errors
= htonll(ops
->stats
.tx_errors
);
7590 eth
= ofpprop_put_zeros(reply
, OFPPSPT14_ETHERNET
, sizeof *eth
);
7591 eth
->rx_frame_err
= htonll(ops
->stats
.rx_frame_errors
);
7592 eth
->rx_over_err
= htonll(ops
->stats
.rx_over_errors
);
7593 eth
->rx_crc_err
= htonll(ops
->stats
.rx_crc_errors
);
7594 eth
->collisions
= htonll(ops
->stats
.collisions
);
7596 uint64_t prop_type
= OFPPROP_EXP(INTEL_VENDOR_ID
,
7597 INTEL_PORT_STATS_RFC2819
);
7599 stats_rfc2819
= ofpprop_put_zeros(reply
, prop_type
,
7600 sizeof *stats_rfc2819
);
7602 memset(stats_rfc2819
->pad
, 0, sizeof stats_rfc2819
->pad
);
7603 stats_rfc2819
->rx_1_to_64_packets
= htonll(ops
->stats
.rx_1_to_64_packets
);
7604 stats_rfc2819
->rx_65_to_127_packets
=
7605 htonll(ops
->stats
.rx_65_to_127_packets
);
7606 stats_rfc2819
->rx_128_to_255_packets
=
7607 htonll(ops
->stats
.rx_128_to_255_packets
);
7608 stats_rfc2819
->rx_256_to_511_packets
=
7609 htonll(ops
->stats
.rx_256_to_511_packets
);
7610 stats_rfc2819
->rx_512_to_1023_packets
=
7611 htonll(ops
->stats
.rx_512_to_1023_packets
);
7612 stats_rfc2819
->rx_1024_to_1522_packets
=
7613 htonll(ops
->stats
.rx_1024_to_1522_packets
);
7614 stats_rfc2819
->rx_1523_to_max_packets
=
7615 htonll(ops
->stats
.rx_1523_to_max_packets
);
7617 stats_rfc2819
->tx_1_to_64_packets
= htonll(ops
->stats
.tx_1_to_64_packets
);
7618 stats_rfc2819
->tx_65_to_127_packets
=
7619 htonll(ops
->stats
.tx_65_to_127_packets
);
7620 stats_rfc2819
->tx_128_to_255_packets
=
7621 htonll(ops
->stats
.tx_128_to_255_packets
);
7622 stats_rfc2819
->tx_256_to_511_packets
=
7623 htonll(ops
->stats
.tx_256_to_511_packets
);
7624 stats_rfc2819
->tx_512_to_1023_packets
=
7625 htonll(ops
->stats
.tx_512_to_1023_packets
);
7626 stats_rfc2819
->tx_1024_to_1522_packets
=
7627 htonll(ops
->stats
.tx_1024_to_1522_packets
);
7628 stats_rfc2819
->tx_1523_to_max_packets
=
7629 htonll(ops
->stats
.tx_1523_to_max_packets
);
7631 stats_rfc2819
->tx_multicast_packets
=
7632 htonll(ops
->stats
.tx_multicast_packets
);
7633 stats_rfc2819
->rx_broadcast_packets
=
7634 htonll(ops
->stats
.rx_broadcast_packets
);
7635 stats_rfc2819
->tx_broadcast_packets
=
7636 htonll(ops
->stats
.tx_broadcast_packets
);
7637 stats_rfc2819
->rx_undersized_errors
=
7638 htonll(ops
->stats
.rx_undersized_errors
);
7639 stats_rfc2819
->rx_oversize_errors
=
7640 htonll(ops
->stats
.rx_oversize_errors
);
7641 stats_rfc2819
->rx_fragmented_errors
=
7642 htonll(ops
->stats
.rx_fragmented_errors
);
7643 stats_rfc2819
->rx_jabber_errors
=
7644 htonll(ops
->stats
.rx_jabber_errors
);
7647 /* Encode a ports stat for 'ops' and append it to 'replies'. */
7649 ofputil_append_port_stat(struct ovs_list
*replies
,
7650 const struct ofputil_port_stats
*ops
)
7652 switch (ofpmp_version(replies
)) {
7653 case OFP13_VERSION
: {
7654 struct ofp13_port_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
7655 ofputil_port_stats_to_ofp13(ops
, reply
);
7659 case OFP11_VERSION
: {
7660 struct ofp11_port_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
7661 ofputil_port_stats_to_ofp11(ops
, reply
);
7665 case OFP10_VERSION
: {
7666 struct ofp10_port_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
7667 ofputil_port_stats_to_ofp10(ops
, reply
);
7674 ofputil_append_ofp14_port_stats(ops
, replies
);
7683 ofputil_port_stats_from_ofp10(struct ofputil_port_stats
*ops
,
7684 const struct ofp10_port_stats
*ps10
)
7687 ops
->port_no
= u16_to_ofp(ntohs(ps10
->port_no
));
7688 ops
->stats
.rx_packets
= ntohll(get_32aligned_be64(&ps10
->rx_packets
));
7689 ops
->stats
.tx_packets
= ntohll(get_32aligned_be64(&ps10
->tx_packets
));
7690 ops
->stats
.rx_bytes
= ntohll(get_32aligned_be64(&ps10
->rx_bytes
));
7691 ops
->stats
.tx_bytes
= ntohll(get_32aligned_be64(&ps10
->tx_bytes
));
7692 ops
->stats
.rx_dropped
= ntohll(get_32aligned_be64(&ps10
->rx_dropped
));
7693 ops
->stats
.tx_dropped
= ntohll(get_32aligned_be64(&ps10
->tx_dropped
));
7694 ops
->stats
.rx_errors
= ntohll(get_32aligned_be64(&ps10
->rx_errors
));
7695 ops
->stats
.tx_errors
= ntohll(get_32aligned_be64(&ps10
->tx_errors
));
7696 ops
->stats
.rx_frame_errors
=
7697 ntohll(get_32aligned_be64(&ps10
->rx_frame_err
));
7698 ops
->stats
.rx_over_errors
= ntohll(get_32aligned_be64(&ps10
->rx_over_err
));
7699 ops
->stats
.rx_crc_errors
= ntohll(get_32aligned_be64(&ps10
->rx_crc_err
));
7700 ops
->stats
.collisions
= ntohll(get_32aligned_be64(&ps10
->collisions
));
7701 ops
->duration_sec
= ops
->duration_nsec
= UINT32_MAX
;
7707 ofputil_port_stats_from_ofp11(struct ofputil_port_stats
*ops
,
7708 const struct ofp11_port_stats
*ps11
)
7712 error
= ofputil_port_from_ofp11(ps11
->port_no
, &ops
->port_no
);
7717 ops
->stats
.rx_packets
= ntohll(ps11
->rx_packets
);
7718 ops
->stats
.tx_packets
= ntohll(ps11
->tx_packets
);
7719 ops
->stats
.rx_bytes
= ntohll(ps11
->rx_bytes
);
7720 ops
->stats
.tx_bytes
= ntohll(ps11
->tx_bytes
);
7721 ops
->stats
.rx_dropped
= ntohll(ps11
->rx_dropped
);
7722 ops
->stats
.tx_dropped
= ntohll(ps11
->tx_dropped
);
7723 ops
->stats
.rx_errors
= ntohll(ps11
->rx_errors
);
7724 ops
->stats
.tx_errors
= ntohll(ps11
->tx_errors
);
7725 ops
->stats
.rx_frame_errors
= ntohll(ps11
->rx_frame_err
);
7726 ops
->stats
.rx_over_errors
= ntohll(ps11
->rx_over_err
);
7727 ops
->stats
.rx_crc_errors
= ntohll(ps11
->rx_crc_err
);
7728 ops
->stats
.collisions
= ntohll(ps11
->collisions
);
7729 ops
->duration_sec
= ops
->duration_nsec
= UINT32_MAX
;
7735 ofputil_port_stats_from_ofp13(struct ofputil_port_stats
*ops
,
7736 const struct ofp13_port_stats
*ps13
)
7738 enum ofperr error
= ofputil_port_stats_from_ofp11(ops
, &ps13
->ps
);
7740 ops
->duration_sec
= ntohl(ps13
->duration_sec
);
7741 ops
->duration_nsec
= ntohl(ps13
->duration_nsec
);
7747 parse_ofp14_port_stats_ethernet_property(const struct ofpbuf
*payload
,
7748 struct ofputil_port_stats
*ops
)
7750 const struct ofp14_port_stats_prop_ethernet
*eth
= payload
->data
;
7752 if (payload
->size
!= sizeof *eth
) {
7753 return OFPERR_OFPBPC_BAD_LEN
;
7756 ops
->stats
.rx_frame_errors
= ntohll(eth
->rx_frame_err
);
7757 ops
->stats
.rx_over_errors
= ntohll(eth
->rx_over_err
);
7758 ops
->stats
.rx_crc_errors
= ntohll(eth
->rx_crc_err
);
7759 ops
->stats
.collisions
= ntohll(eth
->collisions
);
7765 parse_intel_port_stats_rfc2819_property(const struct ofpbuf
*payload
,
7766 struct ofputil_port_stats
*ops
)
7768 const struct intel_port_stats_rfc2819
*rfc2819
= payload
->data
;
7770 if (payload
->size
!= sizeof *rfc2819
) {
7771 return OFPERR_OFPBPC_BAD_LEN
;
7773 ops
->stats
.rx_1_to_64_packets
= ntohll(rfc2819
->rx_1_to_64_packets
);
7774 ops
->stats
.rx_65_to_127_packets
= ntohll(rfc2819
->rx_65_to_127_packets
);
7775 ops
->stats
.rx_128_to_255_packets
= ntohll(rfc2819
->rx_128_to_255_packets
);
7776 ops
->stats
.rx_256_to_511_packets
= ntohll(rfc2819
->rx_256_to_511_packets
);
7777 ops
->stats
.rx_512_to_1023_packets
=
7778 ntohll(rfc2819
->rx_512_to_1023_packets
);
7779 ops
->stats
.rx_1024_to_1522_packets
=
7780 ntohll(rfc2819
->rx_1024_to_1522_packets
);
7781 ops
->stats
.rx_1523_to_max_packets
=
7782 ntohll(rfc2819
->rx_1523_to_max_packets
);
7784 ops
->stats
.tx_1_to_64_packets
= ntohll(rfc2819
->tx_1_to_64_packets
);
7785 ops
->stats
.tx_65_to_127_packets
= ntohll(rfc2819
->tx_65_to_127_packets
);
7786 ops
->stats
.tx_128_to_255_packets
= ntohll(rfc2819
->tx_128_to_255_packets
);
7787 ops
->stats
.tx_256_to_511_packets
= ntohll(rfc2819
->tx_256_to_511_packets
);
7788 ops
->stats
.tx_512_to_1023_packets
=
7789 ntohll(rfc2819
->tx_512_to_1023_packets
);
7790 ops
->stats
.tx_1024_to_1522_packets
=
7791 ntohll(rfc2819
->tx_1024_to_1522_packets
);
7792 ops
->stats
.tx_1523_to_max_packets
=
7793 ntohll(rfc2819
->tx_1523_to_max_packets
);
7795 ops
->stats
.tx_multicast_packets
= ntohll(rfc2819
->tx_multicast_packets
);
7796 ops
->stats
.rx_broadcast_packets
= ntohll(rfc2819
->rx_broadcast_packets
);
7797 ops
->stats
.tx_broadcast_packets
= ntohll(rfc2819
->tx_broadcast_packets
);
7798 ops
->stats
.rx_undersized_errors
= ntohll(rfc2819
->rx_undersized_errors
);
7800 ops
->stats
.rx_oversize_errors
= ntohll(rfc2819
->rx_oversize_errors
);
7801 ops
->stats
.rx_fragmented_errors
= ntohll(rfc2819
->rx_fragmented_errors
);
7802 ops
->stats
.rx_jabber_errors
= ntohll(rfc2819
->rx_jabber_errors
);
7808 parse_intel_port_stats_property(const struct ofpbuf
*payload
,
7810 struct ofputil_port_stats
*ops
)
7815 case INTEL_PORT_STATS_RFC2819
:
7816 error
= parse_intel_port_stats_rfc2819_property(payload
, ops
);
7819 error
= OFPERR_OFPBPC_BAD_EXP_TYPE
;
7827 ofputil_pull_ofp14_port_stats(struct ofputil_port_stats
*ops
,
7830 const struct ofp14_port_stats
*ps14
= ofpbuf_try_pull(msg
, sizeof *ps14
);
7832 return OFPERR_OFPBRC_BAD_LEN
;
7835 size_t len
= ntohs(ps14
->length
);
7836 if (len
< sizeof *ps14
|| len
- sizeof *ps14
> msg
->size
) {
7837 return OFPERR_OFPBRC_BAD_LEN
;
7839 len
-= sizeof *ps14
;
7841 enum ofperr error
= ofputil_port_from_ofp11(ps14
->port_no
, &ops
->port_no
);
7846 ops
->duration_sec
= ntohl(ps14
->duration_sec
);
7847 ops
->duration_nsec
= ntohl(ps14
->duration_nsec
);
7848 ops
->stats
.rx_packets
= ntohll(ps14
->rx_packets
);
7849 ops
->stats
.tx_packets
= ntohll(ps14
->tx_packets
);
7850 ops
->stats
.rx_bytes
= ntohll(ps14
->rx_bytes
);
7851 ops
->stats
.tx_bytes
= ntohll(ps14
->tx_bytes
);
7852 ops
->stats
.rx_dropped
= ntohll(ps14
->rx_dropped
);
7853 ops
->stats
.tx_dropped
= ntohll(ps14
->tx_dropped
);
7854 ops
->stats
.rx_errors
= ntohll(ps14
->rx_errors
);
7855 ops
->stats
.tx_errors
= ntohll(ps14
->tx_errors
);
7858 struct ofpbuf properties
= ofpbuf_const_initializer(ofpbuf_pull(msg
, len
),
7860 while (properties
.size
> 0) {
7861 struct ofpbuf payload
;
7865 error
= ofpprop_pull(&properties
, &payload
, &type
);
7870 case OFPPSPT14_ETHERNET
:
7871 error
= parse_ofp14_port_stats_ethernet_property(&payload
, ops
);
7873 case OFPPROP_EXP(INTEL_VENDOR_ID
, INTEL_PORT_STATS_RFC2819
):
7874 error
= parse_intel_port_stats_property(&payload
,
7875 INTEL_PORT_STATS_RFC2819
,
7879 error
= OFPPROP_UNKNOWN(true, "port stats", type
);
7891 /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
7894 ofputil_count_port_stats(const struct ofp_header
*oh
)
7896 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
7897 ofpraw_pull_assert(&b
);
7899 for (size_t n
= 0; ; n
++) {
7900 struct ofputil_port_stats ps
;
7901 if (ofputil_decode_port_stats(&ps
, &b
)) {
7907 /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
7908 * ofputil_port_stats in 'ps'.
7910 * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
7911 * message. Calling this function multiple times for a single 'msg' iterates
7912 * through the replies. The caller must initially leave 'msg''s layer pointers
7913 * null and not modify them between calls.
7915 * Returns 0 if successful, EOF if no replies were left in this 'msg',
7916 * otherwise a positive errno value. */
7918 ofputil_decode_port_stats(struct ofputil_port_stats
*ps
, struct ofpbuf
*msg
)
7923 memset(&(ps
->stats
), 0xFF, sizeof (ps
->stats
));
7925 error
= (msg
->header
? ofpraw_decode(&raw
, msg
->header
)
7926 : ofpraw_pull(&raw
, msg
));
7933 } else if (raw
== OFPRAW_OFPST14_PORT_REPLY
) {
7934 return ofputil_pull_ofp14_port_stats(ps
, msg
);
7935 } else if (raw
== OFPRAW_OFPST13_PORT_REPLY
) {
7936 const struct ofp13_port_stats
*ps13
;
7937 ps13
= ofpbuf_try_pull(msg
, sizeof *ps13
);
7941 return ofputil_port_stats_from_ofp13(ps
, ps13
);
7942 } else if (raw
== OFPRAW_OFPST11_PORT_REPLY
) {
7943 const struct ofp11_port_stats
*ps11
;
7945 ps11
= ofpbuf_try_pull(msg
, sizeof *ps11
);
7949 return ofputil_port_stats_from_ofp11(ps
, ps11
);
7950 } else if (raw
== OFPRAW_OFPST10_PORT_REPLY
) {
7951 const struct ofp10_port_stats
*ps10
;
7953 ps10
= ofpbuf_try_pull(msg
, sizeof *ps10
);
7957 return ofputil_port_stats_from_ofp10(ps
, ps10
);
7963 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_PORT reply has %"PRIu32
" leftover "
7964 "bytes at end", msg
->size
);
7965 return OFPERR_OFPBRC_BAD_LEN
;
7968 /* Parse a port status request message into a 16 bit OpenFlow 1.0
7969 * port number and stores the latter in '*ofp10_port'.
7970 * Returns 0 if successful, otherwise an OFPERR_* number. */
7972 ofputil_decode_port_stats_request(const struct ofp_header
*request
,
7973 ofp_port_t
*ofp10_port
)
7975 switch ((enum ofp_version
)request
->version
) {
7981 case OFP11_VERSION
: {
7982 const struct ofp11_port_stats_request
*psr11
= ofpmsg_body(request
);
7983 return ofputil_port_from_ofp11(psr11
->port_no
, ofp10_port
);
7986 case OFP10_VERSION
: {
7987 const struct ofp10_port_stats_request
*psr10
= ofpmsg_body(request
);
7988 *ofp10_port
= u16_to_ofp(ntohs(psr10
->port_no
));
7998 ofputil_ipfix_stats_to_reply(const struct ofputil_ipfix_stats
*ois
,
7999 struct nx_ipfix_stats_reply
*reply
)
8001 reply
->collector_set_id
= htonl(ois
->collector_set_id
);
8002 reply
->total_flows
= htonll(ois
->total_flows
);
8003 reply
->current_flows
= htonll(ois
->current_flows
);
8004 reply
->pkts
= htonll(ois
->pkts
);
8005 reply
->ipv4_pkts
= htonll(ois
->ipv4_pkts
);
8006 reply
->ipv6_pkts
= htonll(ois
->ipv6_pkts
);
8007 reply
->error_pkts
= htonll(ois
->error_pkts
);
8008 reply
->ipv4_error_pkts
= htonll(ois
->ipv4_error_pkts
);
8009 reply
->ipv6_error_pkts
= htonll(ois
->ipv6_error_pkts
);
8010 reply
->tx_pkts
= htonll(ois
->tx_pkts
);
8011 reply
->tx_errors
= htonll(ois
->tx_errors
);
8012 memset(reply
->pad
, 0, sizeof reply
->pad
);
8015 /* Encode a ipfix stat for 'ois' and append it to 'replies'. */
8017 ofputil_append_ipfix_stat(struct ovs_list
*replies
,
8018 const struct ofputil_ipfix_stats
*ois
)
8020 struct nx_ipfix_stats_reply
*reply
= ofpmp_append(replies
, sizeof *reply
);
8021 ofputil_ipfix_stats_to_reply(ois
, reply
);
8025 ofputil_ipfix_stats_from_nx(struct ofputil_ipfix_stats
*is
,
8026 const struct nx_ipfix_stats_reply
*reply
)
8028 is
->collector_set_id
= ntohl(reply
->collector_set_id
);
8029 is
->total_flows
= ntohll(reply
->total_flows
);
8030 is
->current_flows
= ntohll(reply
->current_flows
);
8031 is
->pkts
= ntohll(reply
->pkts
);
8032 is
->ipv4_pkts
= ntohll(reply
->ipv4_pkts
);
8033 is
->ipv6_pkts
= ntohll(reply
->ipv6_pkts
);
8034 is
->error_pkts
= ntohll(reply
->error_pkts
);
8035 is
->ipv4_error_pkts
= ntohll(reply
->ipv4_error_pkts
);
8036 is
->ipv6_error_pkts
= ntohll(reply
->ipv6_error_pkts
);
8037 is
->tx_pkts
= ntohll(reply
->tx_pkts
);
8038 is
->tx_errors
= ntohll(reply
->tx_errors
);
8044 ofputil_pull_ipfix_stats(struct ofputil_ipfix_stats
*is
, struct ofpbuf
*msg
)
8049 memset(is
, 0xFF, sizeof (*is
));
8051 error
= (msg
->header
? ofpraw_decode(&raw
, msg
->header
)
8052 : ofpraw_pull(&raw
, msg
));
8059 } else if (raw
== OFPRAW_NXST_IPFIX_BRIDGE_REPLY
||
8060 raw
== OFPRAW_NXST_IPFIX_FLOW_REPLY
) {
8061 struct nx_ipfix_stats_reply
*reply
;
8063 reply
= ofpbuf_try_pull(msg
, sizeof *reply
);
8064 return ofputil_ipfix_stats_from_nx(is
, reply
);
8071 /* Returns the number of ipfix stats elements in
8072 * OFPTYPE_IPFIX_BRIDGE_STATS_REPLY or OFPTYPE_IPFIX_FLOW_STATS_REPLY
8075 ofputil_count_ipfix_stats(const struct ofp_header
*oh
)
8077 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
8078 ofpraw_pull_assert(&b
);
8080 return b
.size
/ sizeof(struct ofputil_ipfix_stats
);
8083 /* Frees all of the "struct ofputil_bucket"s in the 'buckets' list. */
8085 ofputil_bucket_list_destroy(struct ovs_list
*buckets
)
8087 struct ofputil_bucket
*bucket
;
8089 LIST_FOR_EACH_POP (bucket
, list_node
, buckets
) {
8090 free(bucket
->ofpacts
);
8095 /* Clones 'bucket' and its ofpacts data */
8096 static struct ofputil_bucket
*
8097 ofputil_bucket_clone_data(const struct ofputil_bucket
*bucket
)
8099 struct ofputil_bucket
*new;
8101 new = xmemdup(bucket
, sizeof *bucket
);
8102 new->ofpacts
= xmemdup(bucket
->ofpacts
, bucket
->ofpacts_len
);
8107 /* Clones each of the buckets in the list 'src' appending them
8108 * in turn to 'dest' which should be an initialised list.
8109 * An exception is that if the pointer value of a bucket in 'src'
8110 * matches 'skip' then it is not cloned or appended to 'dest'.
8111 * This allows all of 'src' or 'all of 'src' except 'skip' to
8112 * be cloned and appended to 'dest'. */
8114 ofputil_bucket_clone_list(struct ovs_list
*dest
, const struct ovs_list
*src
,
8115 const struct ofputil_bucket
*skip
)
8117 struct ofputil_bucket
*bucket
;
8119 LIST_FOR_EACH (bucket
, list_node
, src
) {
8120 struct ofputil_bucket
*new_bucket
;
8122 if (bucket
== skip
) {
8126 new_bucket
= ofputil_bucket_clone_data(bucket
);
8127 ovs_list_push_back(dest
, &new_bucket
->list_node
);
8131 /* Find a bucket in the list 'buckets' whose bucket id is 'bucket_id'
8132 * Returns the first bucket found or NULL if no buckets are found. */
8133 struct ofputil_bucket
*
8134 ofputil_bucket_find(const struct ovs_list
*buckets
, uint32_t bucket_id
)
8136 struct ofputil_bucket
*bucket
;
8138 if (bucket_id
> OFPG15_BUCKET_MAX
) {
8142 LIST_FOR_EACH (bucket
, list_node
, buckets
) {
8143 if (bucket
->bucket_id
== bucket_id
) {
8151 /* Returns true if more than one bucket in the list 'buckets'
8152 * have the same bucket id. Returns false otherwise. */
8154 ofputil_bucket_check_duplicate_id(const struct ovs_list
*buckets
)
8156 struct ofputil_bucket
*i
, *j
;
8158 LIST_FOR_EACH (i
, list_node
, buckets
) {
8159 LIST_FOR_EACH_REVERSE (j
, list_node
, buckets
) {
8163 if (i
->bucket_id
== j
->bucket_id
) {
8172 /* Returns the bucket at the front of the list 'buckets'.
8173 * Undefined if 'buckets is empty. */
8174 struct ofputil_bucket
*
8175 ofputil_bucket_list_front(const struct ovs_list
*buckets
)
8177 static struct ofputil_bucket
*bucket
;
8179 ASSIGN_CONTAINER(bucket
, ovs_list_front(buckets
), list_node
);
8184 /* Returns the bucket at the back of the list 'buckets'.
8185 * Undefined if 'buckets is empty. */
8186 struct ofputil_bucket
*
8187 ofputil_bucket_list_back(const struct ovs_list
*buckets
)
8189 static struct ofputil_bucket
*bucket
;
8191 ASSIGN_CONTAINER(bucket
, ovs_list_back(buckets
), list_node
);
8196 /* Returns an OpenFlow group stats request for OpenFlow version 'ofp_version',
8197 * that requests stats for group 'group_id'. (Use OFPG_ALL to request stats
8200 * Group statistics include packet and byte counts for each group. */
8202 ofputil_encode_group_stats_request(enum ofp_version ofp_version
,
8205 struct ofpbuf
*request
;
8207 switch (ofp_version
) {
8209 ovs_fatal(0, "dump-group-stats needs OpenFlow 1.1 or later "
8210 "(\'-O OpenFlow11\')");
8216 case OFP16_VERSION
: {
8217 struct ofp11_group_stats_request
*req
;
8218 request
= ofpraw_alloc(OFPRAW_OFPST11_GROUP_REQUEST
, ofp_version
, 0);
8219 req
= ofpbuf_put_zeros(request
, sizeof *req
);
8220 req
->group_id
= htonl(group_id
);
8231 ofputil_uninit_group_desc(struct ofputil_group_desc
*gd
)
8233 ofputil_bucket_list_destroy(&gd
->buckets
);
8234 ofputil_group_properties_destroy(&gd
->props
);
8237 /* Decodes the OpenFlow group description request in 'oh', returning the group
8238 * whose description is requested, or OFPG_ALL if stats for all groups was
8241 ofputil_decode_group_desc_request(const struct ofp_header
*oh
)
8243 struct ofpbuf request
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
8244 enum ofpraw raw
= ofpraw_pull_assert(&request
);
8245 if (raw
== OFPRAW_OFPST11_GROUP_DESC_REQUEST
) {
8247 } else if (raw
== OFPRAW_OFPST15_GROUP_DESC_REQUEST
) {
8248 ovs_be32
*group_id
= ofpbuf_pull(&request
, sizeof *group_id
);
8249 return ntohl(*group_id
);
8255 /* Returns an OpenFlow group description request for OpenFlow version
8256 * 'ofp_version', that requests stats for group 'group_id'. Use OFPG_ALL to
8257 * request stats for all groups (OpenFlow 1.4 and earlier always request all
8260 * Group descriptions include the bucket and action configuration for each
8263 ofputil_encode_group_desc_request(enum ofp_version ofp_version
,
8266 struct ofpbuf
*request
;
8268 switch (ofp_version
) {
8270 ovs_fatal(0, "dump-groups needs OpenFlow 1.1 or later "
8271 "(\'-O OpenFlow11\')");
8276 request
= ofpraw_alloc(OFPRAW_OFPST11_GROUP_DESC_REQUEST
,
8280 case OFP16_VERSION
: {
8281 struct ofp15_group_desc_request
*req
;
8282 request
= ofpraw_alloc(OFPRAW_OFPST15_GROUP_DESC_REQUEST
,
8284 req
= ofpbuf_put_zeros(request
, sizeof *req
);
8285 req
->group_id
= htonl(group_id
);
8296 ofputil_group_bucket_counters_to_ofp11(const struct ofputil_group_stats
*gs
,
8297 struct ofp11_bucket_counter bucket_cnts
[])
8301 for (i
= 0; i
< gs
->n_buckets
; i
++) {
8302 bucket_cnts
[i
].packet_count
= htonll(gs
->bucket_stats
[i
].packet_count
);
8303 bucket_cnts
[i
].byte_count
= htonll(gs
->bucket_stats
[i
].byte_count
);
8308 ofputil_group_stats_to_ofp11(const struct ofputil_group_stats
*gs
,
8309 struct ofp11_group_stats
*gs11
, size_t length
,
8310 struct ofp11_bucket_counter bucket_cnts
[])
8312 memset(gs11
, 0, sizeof *gs11
);
8313 gs11
->length
= htons(length
);
8314 gs11
->group_id
= htonl(gs
->group_id
);
8315 gs11
->ref_count
= htonl(gs
->ref_count
);
8316 gs11
->packet_count
= htonll(gs
->packet_count
);
8317 gs11
->byte_count
= htonll(gs
->byte_count
);
8318 ofputil_group_bucket_counters_to_ofp11(gs
, bucket_cnts
);
8322 ofputil_group_stats_to_ofp13(const struct ofputil_group_stats
*gs
,
8323 struct ofp13_group_stats
*gs13
, size_t length
,
8324 struct ofp11_bucket_counter bucket_cnts
[])
8326 ofputil_group_stats_to_ofp11(gs
, &gs13
->gs
, length
, bucket_cnts
);
8327 gs13
->duration_sec
= htonl(gs
->duration_sec
);
8328 gs13
->duration_nsec
= htonl(gs
->duration_nsec
);
8332 /* Encodes 'gs' properly for the format of the list of group statistics
8333 * replies already begun in 'replies' and appends it to the list. 'replies'
8334 * must have originally been initialized with ofpmp_init(). */
8336 ofputil_append_group_stats(struct ovs_list
*replies
,
8337 const struct ofputil_group_stats
*gs
)
8339 size_t bucket_counter_size
;
8340 struct ofp11_bucket_counter
*bucket_counters
;
8343 bucket_counter_size
= gs
->n_buckets
* sizeof(struct ofp11_bucket_counter
);
8345 switch (ofpmp_version(replies
)) {
8347 case OFP12_VERSION
:{
8348 struct ofp11_group_stats
*gs11
;
8350 length
= sizeof *gs11
+ bucket_counter_size
;
8351 gs11
= ofpmp_append(replies
, length
);
8352 bucket_counters
= (struct ofp11_bucket_counter
*)(gs11
+ 1);
8353 ofputil_group_stats_to_ofp11(gs
, gs11
, length
, bucket_counters
);
8360 case OFP16_VERSION
: {
8361 struct ofp13_group_stats
*gs13
;
8363 length
= sizeof *gs13
+ bucket_counter_size
;
8364 gs13
= ofpmp_append(replies
, length
);
8365 bucket_counters
= (struct ofp11_bucket_counter
*)(gs13
+ 1);
8366 ofputil_group_stats_to_ofp13(gs
, gs13
, length
, bucket_counters
);
8375 /* Returns an OpenFlow group features request for OpenFlow version
8378 ofputil_encode_group_features_request(enum ofp_version ofp_version
)
8380 struct ofpbuf
*request
= NULL
;
8382 switch (ofp_version
) {
8385 ovs_fatal(0, "dump-group-features needs OpenFlow 1.2 or later "
8386 "(\'-O OpenFlow12\')");
8392 request
= ofpraw_alloc(OFPRAW_OFPST12_GROUP_FEATURES_REQUEST
,
8402 /* Returns a OpenFlow message that encodes 'features' properly as a reply to
8403 * group features request 'request'. */
8405 ofputil_encode_group_features_reply(
8406 const struct ofputil_group_features
*features
,
8407 const struct ofp_header
*request
)
8409 struct ofp12_group_features_stats
*ogf
;
8410 struct ofpbuf
*reply
;
8413 reply
= ofpraw_alloc_xid(OFPRAW_OFPST12_GROUP_FEATURES_REPLY
,
8414 request
->version
, request
->xid
, 0);
8415 ogf
= ofpbuf_put_zeros(reply
, sizeof *ogf
);
8416 ogf
->types
= htonl(features
->types
);
8417 ogf
->capabilities
= htonl(features
->capabilities
);
8418 for (i
= 0; i
< OFPGT12_N_TYPES
; i
++) {
8419 ogf
->max_groups
[i
] = htonl(features
->max_groups
[i
]);
8420 ogf
->actions
[i
] = ofpact_bitmap_to_openflow(features
->ofpacts
[i
],
8427 /* Decodes group features reply 'oh' into 'features'. */
8429 ofputil_decode_group_features_reply(const struct ofp_header
*oh
,
8430 struct ofputil_group_features
*features
)
8432 const struct ofp12_group_features_stats
*ogf
= ofpmsg_body(oh
);
8435 features
->types
= ntohl(ogf
->types
);
8436 features
->capabilities
= ntohl(ogf
->capabilities
);
8437 for (i
= 0; i
< OFPGT12_N_TYPES
; i
++) {
8438 features
->max_groups
[i
] = ntohl(ogf
->max_groups
[i
]);
8439 features
->ofpacts
[i
] = ofpact_bitmap_from_openflow(
8440 ogf
->actions
[i
], oh
->version
);
8444 /* Parse a group status request message into a 32 bit OpenFlow 1.1
8445 * group ID and stores the latter in '*group_id'.
8446 * Returns 0 if successful, otherwise an OFPERR_* number. */
8448 ofputil_decode_group_stats_request(const struct ofp_header
*request
,
8451 const struct ofp11_group_stats_request
*gsr11
= ofpmsg_body(request
);
8452 *group_id
= ntohl(gsr11
->group_id
);
8456 /* Converts a group stats reply in 'msg' into an abstract ofputil_group_stats
8457 * in 'gs'. Assigns freshly allocated memory to gs->bucket_stats for the
8458 * caller to eventually free.
8460 * Multiple group stats replies can be packed into a single OpenFlow message.
8461 * Calling this function multiple times for a single 'msg' iterates through the
8462 * replies. The caller must initially leave 'msg''s layer pointers null and
8463 * not modify them between calls.
8465 * Returns 0 if successful, EOF if no replies were left in this 'msg',
8466 * otherwise a positive errno value. */
8468 ofputil_decode_group_stats_reply(struct ofpbuf
*msg
,
8469 struct ofputil_group_stats
*gs
)
8471 struct ofp11_bucket_counter
*obc
;
8472 struct ofp11_group_stats
*ogs11
;
8479 gs
->bucket_stats
= NULL
;
8480 error
= (msg
->header
? ofpraw_decode(&raw
, msg
->header
)
8481 : ofpraw_pull(&raw
, msg
));
8490 if (raw
== OFPRAW_OFPST11_GROUP_REPLY
) {
8491 base_len
= sizeof *ogs11
;
8492 ogs11
= ofpbuf_try_pull(msg
, sizeof *ogs11
);
8493 gs
->duration_sec
= gs
->duration_nsec
= UINT32_MAX
;
8494 } else if (raw
== OFPRAW_OFPST13_GROUP_REPLY
) {
8495 struct ofp13_group_stats
*ogs13
;
8497 base_len
= sizeof *ogs13
;
8498 ogs13
= ofpbuf_try_pull(msg
, sizeof *ogs13
);
8501 gs
->duration_sec
= ntohl(ogs13
->duration_sec
);
8502 gs
->duration_nsec
= ntohl(ogs13
->duration_nsec
);
8511 VLOG_WARN_RL(&bad_ofmsg_rl
, "%s reply has %"PRIu32
" leftover bytes at end",
8512 ofpraw_get_name(raw
), msg
->size
);
8513 return OFPERR_OFPBRC_BAD_LEN
;
8515 length
= ntohs(ogs11
->length
);
8516 if (length
< sizeof base_len
) {
8517 VLOG_WARN_RL(&bad_ofmsg_rl
, "%s reply claims invalid length %"PRIuSIZE
,
8518 ofpraw_get_name(raw
), length
);
8519 return OFPERR_OFPBRC_BAD_LEN
;
8522 gs
->group_id
= ntohl(ogs11
->group_id
);
8523 gs
->ref_count
= ntohl(ogs11
->ref_count
);
8524 gs
->packet_count
= ntohll(ogs11
->packet_count
);
8525 gs
->byte_count
= ntohll(ogs11
->byte_count
);
8527 gs
->n_buckets
= (length
- base_len
) / sizeof *obc
;
8528 obc
= ofpbuf_try_pull(msg
, gs
->n_buckets
* sizeof *obc
);
8530 VLOG_WARN_RL(&bad_ofmsg_rl
, "%s reply has %"PRIu32
" leftover bytes at end",
8531 ofpraw_get_name(raw
), msg
->size
);
8532 return OFPERR_OFPBRC_BAD_LEN
;
8535 gs
->bucket_stats
= xmalloc(gs
->n_buckets
* sizeof *gs
->bucket_stats
);
8536 for (i
= 0; i
< gs
->n_buckets
; i
++) {
8537 gs
->bucket_stats
[i
].packet_count
= ntohll(obc
[i
].packet_count
);
8538 gs
->bucket_stats
[i
].byte_count
= ntohll(obc
[i
].byte_count
);
8545 ofputil_put_ofp11_bucket(const struct ofputil_bucket
*bucket
,
8546 struct ofpbuf
*openflow
, enum ofp_version ofp_version
)
8548 struct ofp11_bucket
*ob
;
8551 start
= openflow
->size
;
8552 ofpbuf_put_zeros(openflow
, sizeof *ob
);
8553 ofpacts_put_openflow_actions(bucket
->ofpacts
, bucket
->ofpacts_len
,
8554 openflow
, ofp_version
);
8555 ob
= ofpbuf_at_assert(openflow
, start
, sizeof *ob
);
8556 ob
->len
= htons(openflow
->size
- start
);
8557 ob
->weight
= htons(bucket
->weight
);
8558 ob
->watch_port
= ofputil_port_to_ofp11(bucket
->watch_port
);
8559 ob
->watch_group
= htonl(bucket
->watch_group
);
8563 ofputil_put_ofp15_bucket(const struct ofputil_bucket
*bucket
,
8564 uint32_t bucket_id
, enum ofp11_group_type group_type
,
8565 struct ofpbuf
*openflow
, enum ofp_version ofp_version
)
8567 struct ofp15_bucket
*ob
;
8568 size_t start
, actions_start
, actions_len
;
8570 start
= openflow
->size
;
8571 ofpbuf_put_zeros(openflow
, sizeof *ob
);
8573 actions_start
= openflow
->size
;
8574 ofpacts_put_openflow_actions(bucket
->ofpacts
, bucket
->ofpacts_len
,
8575 openflow
, ofp_version
);
8576 actions_len
= openflow
->size
- actions_start
;
8578 if (group_type
== OFPGT11_SELECT
) {
8579 ofpprop_put_u16(openflow
, OFPGBPT15_WEIGHT
, bucket
->weight
);
8581 if (bucket
->watch_port
!= OFPP_ANY
) {
8582 ofpprop_put_be32(openflow
, OFPGBPT15_WATCH_PORT
,
8583 ofputil_port_to_ofp11(bucket
->watch_port
));
8585 if (bucket
->watch_group
!= OFPG_ANY
) {
8586 ofpprop_put_u32(openflow
, OFPGBPT15_WATCH_GROUP
, bucket
->watch_group
);
8589 ob
= ofpbuf_at_assert(openflow
, start
, sizeof *ob
);
8590 ob
->len
= htons(openflow
->size
- start
);
8591 ob
->action_array_len
= htons(actions_len
);
8592 ob
->bucket_id
= htonl(bucket_id
);
8596 ofputil_put_group_prop_ntr_selection_method(enum ofp_version ofp_version
,
8597 const struct ofputil_group_props
*gp
,
8598 struct ofpbuf
*openflow
)
8600 struct ntr_group_prop_selection_method
*prop
;
8603 start
= openflow
->size
;
8604 ofpbuf_put_zeros(openflow
, sizeof *prop
);
8605 oxm_put_field_array(openflow
, &gp
->fields
, ofp_version
);
8606 prop
= ofpbuf_at_assert(openflow
, start
, sizeof *prop
);
8607 prop
->type
= htons(OFPGPT15_EXPERIMENTER
);
8608 prop
->experimenter
= htonl(NTR_VENDOR_ID
);
8609 prop
->exp_type
= htonl(NTRT_SELECTION_METHOD
);
8610 strcpy(prop
->selection_method
, gp
->selection_method
);
8611 prop
->selection_method_param
= htonll(gp
->selection_method_param
);
8612 ofpprop_end(openflow
, start
);
8616 ofputil_append_ofp11_group_desc_reply(const struct ofputil_group_desc
*gds
,
8617 const struct ovs_list
*buckets
,
8618 struct ovs_list
*replies
,
8619 enum ofp_version version
)
8621 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
8622 struct ofp11_group_desc_stats
*ogds
;
8623 struct ofputil_bucket
*bucket
;
8626 start_ogds
= reply
->size
;
8627 ofpbuf_put_zeros(reply
, sizeof *ogds
);
8628 LIST_FOR_EACH (bucket
, list_node
, buckets
) {
8629 ofputil_put_ofp11_bucket(bucket
, reply
, version
);
8631 ogds
= ofpbuf_at_assert(reply
, start_ogds
, sizeof *ogds
);
8632 ogds
->length
= htons(reply
->size
- start_ogds
);
8633 ogds
->type
= gds
->type
;
8634 ogds
->group_id
= htonl(gds
->group_id
);
8636 ofpmp_postappend(replies
, start_ogds
);
8640 ofputil_append_ofp15_group_desc_reply(const struct ofputil_group_desc
*gds
,
8641 const struct ovs_list
*buckets
,
8642 struct ovs_list
*replies
,
8643 enum ofp_version version
)
8645 struct ofpbuf
*reply
= ofpbuf_from_list(ovs_list_back(replies
));
8646 struct ofp15_group_desc_stats
*ogds
;
8647 struct ofputil_bucket
*bucket
;
8648 size_t start_ogds
, start_buckets
;
8650 start_ogds
= reply
->size
;
8651 ofpbuf_put_zeros(reply
, sizeof *ogds
);
8652 start_buckets
= reply
->size
;
8653 LIST_FOR_EACH (bucket
, list_node
, buckets
) {
8654 ofputil_put_ofp15_bucket(bucket
, bucket
->bucket_id
,
8655 gds
->type
, reply
, version
);
8657 ogds
= ofpbuf_at_assert(reply
, start_ogds
, sizeof *ogds
);
8658 ogds
->type
= gds
->type
;
8659 ogds
->group_id
= htonl(gds
->group_id
);
8660 ogds
->bucket_list_len
= htons(reply
->size
- start_buckets
);
8662 /* Add group properties */
8663 if (gds
->props
.selection_method
[0]) {
8664 ofputil_put_group_prop_ntr_selection_method(version
, &gds
->props
,
8667 ogds
= ofpbuf_at_assert(reply
, start_ogds
, sizeof *ogds
);
8668 ogds
->length
= htons(reply
->size
- start_ogds
);
8670 ofpmp_postappend(replies
, start_ogds
);
8673 /* Appends a group stats reply that contains the data in 'gds' to those already
8674 * present in the list of ofpbufs in 'replies'. 'replies' should have been
8675 * initialized with ofpmp_init(). */
8677 ofputil_append_group_desc_reply(const struct ofputil_group_desc
*gds
,
8678 const struct ovs_list
*buckets
,
8679 struct ovs_list
*replies
)
8681 enum ofp_version version
= ofpmp_version(replies
);
8689 ofputil_append_ofp11_group_desc_reply(gds
, buckets
, replies
, version
);
8694 ofputil_append_ofp15_group_desc_reply(gds
, buckets
, replies
, version
);
8704 ofputil_pull_ofp11_buckets(struct ofpbuf
*msg
, size_t buckets_length
,
8705 enum ofp_version version
, struct ovs_list
*buckets
)
8707 struct ofp11_bucket
*ob
;
8708 uint32_t bucket_id
= 0;
8710 ovs_list_init(buckets
);
8711 while (buckets_length
> 0) {
8712 struct ofputil_bucket
*bucket
;
8713 struct ofpbuf ofpacts
;
8717 ob
= (buckets_length
>= sizeof *ob
8718 ? ofpbuf_try_pull(msg
, sizeof *ob
)
8721 VLOG_WARN_RL(&bad_ofmsg_rl
, "buckets end with %"PRIuSIZE
" leftover bytes",
8723 return OFPERR_OFPGMFC_BAD_BUCKET
;
8726 ob_len
= ntohs(ob
->len
);
8727 if (ob_len
< sizeof *ob
) {
8728 VLOG_WARN_RL(&bad_ofmsg_rl
, "OpenFlow message bucket length "
8729 "%"PRIuSIZE
" is not valid", ob_len
);
8730 return OFPERR_OFPGMFC_BAD_BUCKET
;
8731 } else if (ob_len
> buckets_length
) {
8732 VLOG_WARN_RL(&bad_ofmsg_rl
, "OpenFlow message bucket length "
8733 "%"PRIuSIZE
" exceeds remaining buckets data size %"PRIuSIZE
,
8734 ob_len
, buckets_length
);
8735 return OFPERR_OFPGMFC_BAD_BUCKET
;
8737 buckets_length
-= ob_len
;
8739 ofpbuf_init(&ofpacts
, 0);
8740 error
= ofpacts_pull_openflow_actions(msg
, ob_len
- sizeof *ob
,
8741 version
, NULL
, &ofpacts
);
8743 ofpbuf_uninit(&ofpacts
);
8744 ofputil_bucket_list_destroy(buckets
);
8748 bucket
= xzalloc(sizeof *bucket
);
8749 bucket
->weight
= ntohs(ob
->weight
);
8750 error
= ofputil_port_from_ofp11(ob
->watch_port
, &bucket
->watch_port
);
8752 ofpbuf_uninit(&ofpacts
);
8753 ofputil_bucket_list_destroy(buckets
);
8754 return OFPERR_OFPGMFC_BAD_WATCH
;
8756 bucket
->watch_group
= ntohl(ob
->watch_group
);
8757 bucket
->bucket_id
= bucket_id
++;
8759 bucket
->ofpacts
= ofpbuf_steal_data(&ofpacts
);
8760 bucket
->ofpacts_len
= ofpacts
.size
;
8761 ovs_list_push_back(buckets
, &bucket
->list_node
);
8768 ofputil_pull_ofp15_buckets(struct ofpbuf
*msg
, size_t buckets_length
,
8769 enum ofp_version version
, uint8_t group_type
,
8770 struct ovs_list
*buckets
)
8772 struct ofp15_bucket
*ob
;
8774 ovs_list_init(buckets
);
8775 while (buckets_length
> 0) {
8776 struct ofputil_bucket
*bucket
= NULL
;
8777 struct ofpbuf ofpacts
;
8778 enum ofperr err
= OFPERR_OFPGMFC_BAD_BUCKET
;
8779 size_t ob_len
, actions_len
, properties_len
;
8780 ovs_be32 watch_port
= ofputil_port_to_ofp11(OFPP_ANY
);
8781 ovs_be32 watch_group
= htonl(OFPG_ANY
);
8782 ovs_be16 weight
= htons(group_type
== OFPGT11_SELECT
? 1 : 0);
8784 ofpbuf_init(&ofpacts
, 0);
8786 ob
= ofpbuf_try_pull(msg
, sizeof *ob
);
8788 VLOG_WARN_RL(&bad_ofmsg_rl
, "buckets end with %"PRIuSIZE
8789 " leftover bytes", buckets_length
);
8793 ob_len
= ntohs(ob
->len
);
8794 actions_len
= ntohs(ob
->action_array_len
);
8796 if (ob_len
< sizeof *ob
) {
8797 VLOG_WARN_RL(&bad_ofmsg_rl
, "OpenFlow message bucket length "
8798 "%"PRIuSIZE
" is not valid", ob_len
);
8800 } else if (ob_len
> buckets_length
) {
8801 VLOG_WARN_RL(&bad_ofmsg_rl
, "OpenFlow message bucket length "
8802 "%"PRIuSIZE
" exceeds remaining buckets data size %"
8803 PRIuSIZE
, ob_len
, buckets_length
);
8805 } else if (actions_len
> ob_len
- sizeof *ob
) {
8806 VLOG_WARN_RL(&bad_ofmsg_rl
, "OpenFlow message bucket actions "
8807 "length %"PRIuSIZE
" exceeds remaining bucket "
8808 "data size %"PRIuSIZE
, actions_len
,
8809 ob_len
- sizeof *ob
);
8812 buckets_length
-= ob_len
;
8814 err
= ofpacts_pull_openflow_actions(msg
, actions_len
, version
,
8820 properties_len
= ob_len
- sizeof *ob
- actions_len
;
8821 struct ofpbuf properties
= ofpbuf_const_initializer(
8822 ofpbuf_pull(msg
, properties_len
), properties_len
);
8823 while (properties
.size
> 0) {
8824 struct ofpbuf payload
;
8827 err
= ofpprop_pull(&properties
, &payload
, &type
);
8833 case OFPGBPT15_WEIGHT
:
8834 err
= ofpprop_parse_be16(&payload
, &weight
);
8837 case OFPGBPT15_WATCH_PORT
:
8838 err
= ofpprop_parse_be32(&payload
, &watch_port
);
8841 case OFPGBPT15_WATCH_GROUP
:
8842 err
= ofpprop_parse_be32(&payload
, &watch_group
);
8846 err
= OFPPROP_UNKNOWN(false, "group bucket", type
);
8855 bucket
= xzalloc(sizeof *bucket
);
8857 bucket
->weight
= ntohs(weight
);
8858 err
= ofputil_port_from_ofp11(watch_port
, &bucket
->watch_port
);
8860 err
= OFPERR_OFPGMFC_BAD_WATCH
;
8863 bucket
->watch_group
= ntohl(watch_group
);
8864 bucket
->bucket_id
= ntohl(ob
->bucket_id
);
8865 if (bucket
->bucket_id
> OFPG15_BUCKET_MAX
) {
8866 VLOG_WARN_RL(&bad_ofmsg_rl
, "bucket id (%u) is out of range",
8868 err
= OFPERR_OFPGMFC_BAD_BUCKET
;
8872 bucket
->ofpacts
= ofpbuf_steal_data(&ofpacts
);
8873 bucket
->ofpacts_len
= ofpacts
.size
;
8874 ovs_list_push_back(buckets
, &bucket
->list_node
);
8880 ofpbuf_uninit(&ofpacts
);
8881 ofputil_bucket_list_destroy(buckets
);
8885 if (ofputil_bucket_check_duplicate_id(buckets
)) {
8886 VLOG_WARN_RL(&bad_ofmsg_rl
, "Duplicate bucket id");
8887 ofputil_bucket_list_destroy(buckets
);
8888 return OFPERR_OFPGMFC_BAD_BUCKET
;
8895 ofputil_init_group_properties(struct ofputil_group_props
*gp
)
8897 memset(gp
, 0, sizeof *gp
);
8901 ofputil_group_properties_copy(struct ofputil_group_props
*to
,
8902 const struct ofputil_group_props
*from
)
8905 to
->fields
.values
= xmemdup(from
->fields
.values
, from
->fields
.values_size
);
8909 ofputil_group_properties_destroy(struct ofputil_group_props
*gp
)
8911 free(gp
->fields
.values
);
8915 parse_group_prop_ntr_selection_method(struct ofpbuf
*payload
,
8916 enum ofp11_group_type group_type
,
8917 enum ofp15_group_mod_command group_cmd
,
8918 struct ofputil_group_props
*gp
)
8920 struct ntr_group_prop_selection_method
*prop
= payload
->data
;
8921 size_t fields_len
, method_len
;
8924 switch (group_type
) {
8925 case OFPGT11_SELECT
:
8928 case OFPGT11_INDIRECT
:
8930 OFPPROP_LOG(&bad_ofmsg_rl
, false, "ntr selection method property is "
8931 "only allowed for select groups");
8932 return OFPERR_OFPBPC_BAD_VALUE
;
8937 switch (group_cmd
) {
8939 case OFPGC15_MODIFY
:
8940 case OFPGC15_ADD_OR_MOD
:
8942 case OFPGC15_DELETE
:
8943 case OFPGC15_INSERT_BUCKET
:
8944 case OFPGC15_REMOVE_BUCKET
:
8945 OFPPROP_LOG(&bad_ofmsg_rl
, false, "ntr selection method property is "
8946 "only allowed for add and delete group modifications");
8947 return OFPERR_OFPBPC_BAD_VALUE
;
8952 if (payload
->size
< sizeof *prop
) {
8953 OFPPROP_LOG(&bad_ofmsg_rl
, false, "ntr selection method property "
8954 "length %u is not valid", payload
->size
);
8955 return OFPERR_OFPBPC_BAD_LEN
;
8958 method_len
= strnlen(prop
->selection_method
, NTR_MAX_SELECTION_METHOD_LEN
);
8960 if (method_len
== NTR_MAX_SELECTION_METHOD_LEN
) {
8961 OFPPROP_LOG(&bad_ofmsg_rl
, false,
8962 "ntr selection method is not null terminated");
8963 return OFPERR_OFPBPC_BAD_VALUE
;
8966 if (strcmp("hash", prop
->selection_method
)
8967 && strcmp("dp_hash", prop
->selection_method
)) {
8968 OFPPROP_LOG(&bad_ofmsg_rl
, false,
8969 "ntr selection method '%s' is not supported",
8970 prop
->selection_method
);
8971 return OFPERR_OFPBPC_BAD_VALUE
;
8973 /* 'method_len' is now non-zero. */
8975 strcpy(gp
->selection_method
, prop
->selection_method
);
8976 gp
->selection_method_param
= ntohll(prop
->selection_method_param
);
8978 ofpbuf_pull(payload
, sizeof *prop
);
8980 fields_len
= ntohs(prop
->length
) - sizeof *prop
;
8981 if (fields_len
&& strcmp("hash", gp
->selection_method
)) {
8982 OFPPROP_LOG(&bad_ofmsg_rl
, false, "ntr selection method %s "
8983 "does not support fields", gp
->selection_method
);
8984 return OFPERR_OFPBPC_BAD_VALUE
;
8987 error
= oxm_pull_field_array(payload
->data
, fields_len
,
8990 OFPPROP_LOG(&bad_ofmsg_rl
, false,
8991 "ntr selection method fields are invalid");
8999 parse_ofp15_group_properties(struct ofpbuf
*msg
,
9000 enum ofp11_group_type group_type
,
9001 enum ofp15_group_mod_command group_cmd
,
9002 struct ofputil_group_props
*gp
,
9003 size_t properties_len
)
9005 struct ofpbuf properties
= ofpbuf_const_initializer(
9006 ofpbuf_pull(msg
, properties_len
), properties_len
);
9007 while (properties
.size
> 0) {
9008 struct ofpbuf payload
;
9012 error
= ofpprop_pull(&properties
, &payload
, &type
);
9018 case OFPPROP_EXP(NTR_VENDOR_ID
, NTRT_SELECTION_METHOD
):
9019 case OFPPROP_EXP(NTR_COMPAT_VENDOR_ID
, NTRT_SELECTION_METHOD
):
9020 error
= parse_group_prop_ntr_selection_method(&payload
, group_type
,
9025 error
= OFPPROP_UNKNOWN(false, "group", type
);
9038 ofputil_decode_ofp11_group_desc_reply(struct ofputil_group_desc
*gd
,
9040 enum ofp_version version
)
9042 struct ofp11_group_desc_stats
*ogds
;
9046 ofpraw_pull_assert(msg
);
9053 ogds
= ofpbuf_try_pull(msg
, sizeof *ogds
);
9055 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST11_GROUP_DESC reply has %"PRIu32
" "
9056 "leftover bytes at end", msg
->size
);
9057 return OFPERR_OFPBRC_BAD_LEN
;
9059 gd
->type
= ogds
->type
;
9060 gd
->group_id
= ntohl(ogds
->group_id
);
9062 length
= ntohs(ogds
->length
);
9063 if (length
< sizeof *ogds
|| length
- sizeof *ogds
> msg
->size
) {
9064 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST11_GROUP_DESC reply claims invalid "
9065 "length %"PRIuSIZE
, length
);
9066 return OFPERR_OFPBRC_BAD_LEN
;
9069 return ofputil_pull_ofp11_buckets(msg
, length
- sizeof *ogds
, version
,
9074 ofputil_decode_ofp15_group_desc_reply(struct ofputil_group_desc
*gd
,
9076 enum ofp_version version
)
9078 struct ofp15_group_desc_stats
*ogds
;
9079 uint16_t length
, bucket_list_len
;
9083 ofpraw_pull_assert(msg
);
9090 ogds
= ofpbuf_try_pull(msg
, sizeof *ogds
);
9092 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST11_GROUP_DESC reply has %"PRIu32
" "
9093 "leftover bytes at end", msg
->size
);
9094 return OFPERR_OFPBRC_BAD_LEN
;
9096 gd
->type
= ogds
->type
;
9097 gd
->group_id
= ntohl(ogds
->group_id
);
9099 length
= ntohs(ogds
->length
);
9100 if (length
< sizeof *ogds
|| length
- sizeof *ogds
> msg
->size
) {
9101 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST11_GROUP_DESC reply claims invalid "
9102 "length %u", length
);
9103 return OFPERR_OFPBRC_BAD_LEN
;
9106 bucket_list_len
= ntohs(ogds
->bucket_list_len
);
9107 if (length
< bucket_list_len
+ sizeof *ogds
) {
9108 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST11_GROUP_DESC reply claims invalid "
9109 "bucket list length %u", bucket_list_len
);
9110 return OFPERR_OFPBRC_BAD_LEN
;
9112 error
= ofputil_pull_ofp15_buckets(msg
, bucket_list_len
, version
, gd
->type
,
9118 /* By definition group desc messages don't have a group mod command.
9119 * However, parse_group_prop_ntr_selection_method() checks to make sure
9120 * that the command is OFPGC15_ADD or OFPGC15_DELETE to guard
9121 * against group mod messages with other commands supplying
9122 * a NTR selection method group experimenter property.
9123 * Such properties are valid for group desc replies so
9124 * claim that the group mod command is OFPGC15_ADD to
9125 * satisfy the check in parse_group_prop_ntr_selection_method() */
9126 return parse_ofp15_group_properties(msg
, gd
->type
, OFPGC15_ADD
, &gd
->props
,
9127 length
- sizeof *ogds
- bucket_list_len
);
9130 /* Converts a group description reply in 'msg' into an abstract
9131 * ofputil_group_desc in 'gd'.
9133 * Multiple group description replies can be packed into a single OpenFlow
9134 * message. Calling this function multiple times for a single 'msg' iterates
9135 * through the replies. The caller must initially leave 'msg''s layer pointers
9136 * null and not modify them between calls.
9138 * Returns 0 if successful, EOF if no replies were left in this 'msg',
9139 * otherwise a positive errno value. */
9141 ofputil_decode_group_desc_reply(struct ofputil_group_desc
*gd
,
9142 struct ofpbuf
*msg
, enum ofp_version version
)
9144 ofputil_init_group_properties(&gd
->props
);
9152 return ofputil_decode_ofp11_group_desc_reply(gd
, msg
, version
);
9156 return ofputil_decode_ofp15_group_desc_reply(gd
, msg
, version
);
9165 ofputil_uninit_group_mod(struct ofputil_group_mod
*gm
)
9167 ofputil_bucket_list_destroy(&gm
->buckets
);
9168 ofputil_group_properties_destroy(&gm
->props
);
9171 static struct ofpbuf
*
9172 ofputil_encode_ofp11_group_mod(enum ofp_version ofp_version
,
9173 const struct ofputil_group_mod
*gm
)
9176 struct ofp11_group_mod
*ogm
;
9178 struct ofputil_bucket
*bucket
;
9180 b
= ofpraw_alloc(OFPRAW_OFPT11_GROUP_MOD
, ofp_version
, 0);
9181 start_ogm
= b
->size
;
9182 ofpbuf_put_zeros(b
, sizeof *ogm
);
9184 LIST_FOR_EACH (bucket
, list_node
, &gm
->buckets
) {
9185 ofputil_put_ofp11_bucket(bucket
, b
, ofp_version
);
9187 ogm
= ofpbuf_at_assert(b
, start_ogm
, sizeof *ogm
);
9188 ogm
->command
= htons(gm
->command
);
9189 ogm
->type
= gm
->type
;
9190 ogm
->group_id
= htonl(gm
->group_id
);
9195 static struct ofpbuf
*
9196 ofputil_encode_ofp15_group_mod(enum ofp_version ofp_version
,
9197 const struct ofputil_group_mod
*gm
)
9200 struct ofp15_group_mod
*ogm
;
9202 struct ofputil_bucket
*bucket
;
9203 struct id_pool
*bucket_ids
= NULL
;
9205 b
= ofpraw_alloc(OFPRAW_OFPT15_GROUP_MOD
, ofp_version
, 0);
9206 start_ogm
= b
->size
;
9207 ofpbuf_put_zeros(b
, sizeof *ogm
);
9209 LIST_FOR_EACH (bucket
, list_node
, &gm
->buckets
) {
9212 /* Generate a bucket id if none was supplied */
9213 if (bucket
->bucket_id
> OFPG15_BUCKET_MAX
) {
9215 const struct ofputil_bucket
*bkt
;
9217 bucket_ids
= id_pool_create(0, OFPG15_BUCKET_MAX
+ 1);
9219 /* Mark all bucket_ids that are present in gm
9220 * as used in the pool. */
9221 LIST_FOR_EACH_REVERSE (bkt
, list_node
, &gm
->buckets
) {
9222 if (bkt
== bucket
) {
9225 if (bkt
->bucket_id
<= OFPG15_BUCKET_MAX
) {
9226 id_pool_add(bucket_ids
, bkt
->bucket_id
);
9231 if (!id_pool_alloc_id(bucket_ids
, &bucket_id
)) {
9235 bucket_id
= bucket
->bucket_id
;
9238 ofputil_put_ofp15_bucket(bucket
, bucket_id
, gm
->type
, b
, ofp_version
);
9240 ogm
= ofpbuf_at_assert(b
, start_ogm
, sizeof *ogm
);
9241 ogm
->command
= htons(gm
->command
);
9242 ogm
->type
= gm
->type
;
9243 ogm
->group_id
= htonl(gm
->group_id
);
9244 ogm
->command_bucket_id
= htonl(gm
->command_bucket_id
);
9245 ogm
->bucket_array_len
= htons(b
->size
- start_ogm
- sizeof *ogm
);
9247 /* Add group properties */
9248 if (gm
->props
.selection_method
[0]) {
9249 ofputil_put_group_prop_ntr_selection_method(ofp_version
, &gm
->props
, b
);
9252 id_pool_destroy(bucket_ids
);
9257 bad_group_cmd(enum ofp15_group_mod_command cmd
)
9259 const char *opt_version
;
9260 const char *version
;
9261 const char *cmd_str
;
9265 case OFPGC15_MODIFY
:
9266 case OFPGC15_ADD_OR_MOD
:
9267 case OFPGC15_DELETE
:
9272 case OFPGC15_INSERT_BUCKET
:
9273 case OFPGC15_REMOVE_BUCKET
:
9284 cmd_str
= "add-group";
9287 case OFPGC15_MODIFY
:
9288 case OFPGC15_ADD_OR_MOD
:
9289 cmd_str
= "mod-group";
9292 case OFPGC15_DELETE
:
9293 cmd_str
= "del-group";
9296 case OFPGC15_INSERT_BUCKET
:
9297 cmd_str
= "insert-bucket";
9300 case OFPGC15_REMOVE_BUCKET
:
9301 cmd_str
= "remove-bucket";
9308 ovs_fatal(0, "%s needs OpenFlow %s or later (\'-O OpenFlow%s\')",
9309 cmd_str
, version
, opt_version
);
9313 /* Converts abstract group mod 'gm' into a message for OpenFlow version
9314 * 'ofp_version' and returns the message. */
9316 ofputil_encode_group_mod(enum ofp_version ofp_version
,
9317 const struct ofputil_group_mod
*gm
)
9320 switch (ofp_version
) {
9322 bad_group_cmd(gm
->command
);
9328 if (gm
->command
> OFPGC11_DELETE
&& gm
->command
!= OFPGC11_ADD_OR_MOD
) {
9329 bad_group_cmd(gm
->command
);
9331 return ofputil_encode_ofp11_group_mod(ofp_version
, gm
);
9335 return ofputil_encode_ofp15_group_mod(ofp_version
, gm
);
9343 ofputil_pull_ofp11_group_mod(struct ofpbuf
*msg
, enum ofp_version ofp_version
,
9344 struct ofputil_group_mod
*gm
)
9346 const struct ofp11_group_mod
*ogm
;
9349 ogm
= ofpbuf_pull(msg
, sizeof *ogm
);
9350 gm
->command
= ntohs(ogm
->command
);
9351 gm
->type
= ogm
->type
;
9352 gm
->group_id
= ntohl(ogm
->group_id
);
9353 gm
->command_bucket_id
= OFPG15_BUCKET_ALL
;
9355 error
= ofputil_pull_ofp11_buckets(msg
, msg
->size
, ofp_version
,
9358 /* OF1.3.5+ prescribes an error when an OFPGC_DELETE includes buckets. */
9360 && ofp_version
>= OFP13_VERSION
9361 && gm
->command
== OFPGC11_DELETE
9362 && !ovs_list_is_empty(&gm
->buckets
)) {
9363 error
= OFPERR_OFPGMFC_INVALID_GROUP
;
9370 ofputil_pull_ofp15_group_mod(struct ofpbuf
*msg
, enum ofp_version ofp_version
,
9371 struct ofputil_group_mod
*gm
)
9373 const struct ofp15_group_mod
*ogm
;
9374 uint16_t bucket_list_len
;
9375 enum ofperr error
= OFPERR_OFPGMFC_BAD_BUCKET
;
9377 ogm
= ofpbuf_pull(msg
, sizeof *ogm
);
9378 gm
->command
= ntohs(ogm
->command
);
9379 gm
->type
= ogm
->type
;
9380 gm
->group_id
= ntohl(ogm
->group_id
);
9382 gm
->command_bucket_id
= ntohl(ogm
->command_bucket_id
);
9383 switch (gm
->command
) {
9384 case OFPGC15_REMOVE_BUCKET
:
9385 if (gm
->command_bucket_id
== OFPG15_BUCKET_ALL
) {
9389 case OFPGC15_INSERT_BUCKET
:
9390 if (gm
->command_bucket_id
<= OFPG15_BUCKET_MAX
||
9391 gm
->command_bucket_id
== OFPG15_BUCKET_FIRST
9392 || gm
->command_bucket_id
== OFPG15_BUCKET_LAST
) {
9398 case OFPGC11_MODIFY
:
9399 case OFPGC11_ADD_OR_MOD
:
9400 case OFPGC11_DELETE
:
9402 if (gm
->command_bucket_id
== OFPG15_BUCKET_ALL
) {
9408 VLOG_WARN_RL(&bad_ofmsg_rl
,
9409 "group command bucket id (%u) is out of range",
9410 gm
->command_bucket_id
);
9411 return OFPERR_OFPGMFC_BAD_BUCKET
;
9414 bucket_list_len
= ntohs(ogm
->bucket_array_len
);
9415 error
= ofputil_pull_ofp15_buckets(msg
, bucket_list_len
, ofp_version
,
9416 gm
->type
, &gm
->buckets
);
9421 return parse_ofp15_group_properties(msg
, gm
->type
, gm
->command
, &gm
->props
,
9425 /* Converts OpenFlow group mod message 'oh' into an abstract group mod in
9426 * 'gm'. Returns 0 if successful, otherwise an OpenFlow error code. */
9428 ofputil_decode_group_mod(const struct ofp_header
*oh
,
9429 struct ofputil_group_mod
*gm
)
9431 ofputil_init_group_properties(&gm
->props
);
9433 enum ofp_version ofp_version
= oh
->version
;
9434 struct ofpbuf msg
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
9435 ofpraw_pull_assert(&msg
);
9438 switch (ofp_version
)
9444 err
= ofputil_pull_ofp11_group_mod(&msg
, ofp_version
, gm
);
9449 err
= ofputil_pull_ofp15_group_mod(&msg
, ofp_version
, gm
);
9461 case OFPGT11_INDIRECT
:
9462 if (gm
->command
!= OFPGC11_DELETE
9463 && !ovs_list_is_singleton(&gm
->buckets
) ) {
9464 return OFPERR_OFPGMFC_INVALID_GROUP
;
9468 case OFPGT11_SELECT
:
9472 return OFPERR_OFPGMFC_BAD_TYPE
;
9475 switch (gm
->command
) {
9477 case OFPGC11_MODIFY
:
9478 case OFPGC11_ADD_OR_MOD
:
9479 case OFPGC11_DELETE
:
9480 case OFPGC15_INSERT_BUCKET
:
9482 case OFPGC15_REMOVE_BUCKET
:
9483 if (!ovs_list_is_empty(&gm
->buckets
)) {
9484 return OFPERR_OFPGMFC_BAD_BUCKET
;
9488 return OFPERR_OFPGMFC_BAD_COMMAND
;
9491 struct ofputil_bucket
*bucket
;
9492 LIST_FOR_EACH (bucket
, list_node
, &gm
->buckets
) {
9493 if (bucket
->weight
&& gm
->type
!= OFPGT11_SELECT
) {
9494 return OFPERR_OFPGMFC_INVALID_GROUP
;
9499 case OFPGT11_INDIRECT
:
9500 if (ofputil_bucket_has_liveness(bucket
)) {
9501 return OFPERR_OFPGMFC_WATCH_UNSUPPORTED
;
9504 case OFPGT11_SELECT
:
9507 if (!ofputil_bucket_has_liveness(bucket
)) {
9508 return OFPERR_OFPGMFC_INVALID_GROUP
;
9512 /* Returning BAD TYPE to be consistent
9513 * though gm->type has been checked already. */
9514 return OFPERR_OFPGMFC_BAD_TYPE
;
9521 /* Destroys 'bms'. */
9523 ofputil_free_bundle_msgs(struct ofputil_bundle_msg
*bms
, size_t n_bms
)
9525 for (size_t i
= 0; i
< n_bms
; i
++) {
9526 switch ((int)bms
[i
].type
) {
9527 case OFPTYPE_FLOW_MOD
:
9528 free(CONST_CAST(struct ofpact
*, bms
[i
].fm
.ofpacts
));
9530 case OFPTYPE_GROUP_MOD
:
9531 ofputil_uninit_group_mod(&bms
[i
].gm
);
9533 case OFPTYPE_PACKET_OUT
:
9534 free(bms
[i
].po
.ofpacts
);
9535 free(CONST_CAST(void *, bms
[i
].po
.packet
));
9545 ofputil_encode_bundle_msgs(const struct ofputil_bundle_msg
*bms
,
9546 size_t n_bms
, struct ovs_list
*requests
,
9547 enum ofputil_protocol protocol
)
9549 enum ofp_version version
= ofputil_protocol_to_ofp_version(protocol
);
9551 for (size_t i
= 0; i
< n_bms
; i
++) {
9552 struct ofpbuf
*request
= NULL
;
9554 switch ((int)bms
[i
].type
) {
9555 case OFPTYPE_FLOW_MOD
:
9556 request
= ofputil_encode_flow_mod(&bms
[i
].fm
, protocol
);
9558 case OFPTYPE_GROUP_MOD
:
9559 request
= ofputil_encode_group_mod(version
, &bms
[i
].gm
);
9561 case OFPTYPE_PACKET_OUT
:
9562 request
= ofputil_encode_packet_out(&bms
[i
].po
, protocol
);
9568 ovs_list_push_back(requests
, &request
->list_node
);
9573 /* Parse a queue status request message into 'oqsr'.
9574 * Returns 0 if successful, otherwise an OFPERR_* number. */
9576 ofputil_decode_queue_stats_request(const struct ofp_header
*request
,
9577 struct ofputil_queue_stats_request
*oqsr
)
9579 switch ((enum ofp_version
)request
->version
) {
9585 case OFP11_VERSION
: {
9586 const struct ofp11_queue_stats_request
*qsr11
= ofpmsg_body(request
);
9587 oqsr
->queue_id
= ntohl(qsr11
->queue_id
);
9588 return ofputil_port_from_ofp11(qsr11
->port_no
, &oqsr
->port_no
);
9591 case OFP10_VERSION
: {
9592 const struct ofp10_queue_stats_request
*qsr10
= ofpmsg_body(request
);
9593 oqsr
->queue_id
= ntohl(qsr10
->queue_id
);
9594 oqsr
->port_no
= u16_to_ofp(ntohs(qsr10
->port_no
));
9595 /* OF 1.0 uses OFPP_ALL for OFPP_ANY */
9596 if (oqsr
->port_no
== OFPP_ALL
) {
9597 oqsr
->port_no
= OFPP_ANY
;
9607 /* Encode a queue stats request for 'oqsr', the encoded message
9608 * will be for OpenFlow version 'ofp_version'. Returns message
9609 * as a struct ofpbuf. Returns encoded message on success, NULL on error. */
9611 ofputil_encode_queue_stats_request(enum ofp_version ofp_version
,
9612 const struct ofputil_queue_stats_request
*oqsr
)
9614 struct ofpbuf
*request
;
9616 switch (ofp_version
) {
9622 case OFP16_VERSION
: {
9623 struct ofp11_queue_stats_request
*req
;
9624 request
= ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST
, ofp_version
, 0);
9625 req
= ofpbuf_put_zeros(request
, sizeof *req
);
9626 req
->port_no
= ofputil_port_to_ofp11(oqsr
->port_no
);
9627 req
->queue_id
= htonl(oqsr
->queue_id
);
9630 case OFP10_VERSION
: {
9631 struct ofp10_queue_stats_request
*req
;
9632 request
= ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST
, ofp_version
, 0);
9633 req
= ofpbuf_put_zeros(request
, sizeof *req
);
9634 /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */
9635 req
->port_no
= htons(ofp_to_u16(oqsr
->port_no
== OFPP_ANY
9636 ? OFPP_ALL
: oqsr
->port_no
));
9637 req
->queue_id
= htonl(oqsr
->queue_id
);
9647 /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY
9650 ofputil_count_queue_stats(const struct ofp_header
*oh
)
9652 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
9653 ofpraw_pull_assert(&b
);
9655 for (size_t n
= 0; ; n
++) {
9656 struct ofputil_queue_stats qs
;
9657 if (ofputil_decode_queue_stats(&qs
, &b
)) {
9664 ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats
*oqs
,
9665 const struct ofp10_queue_stats
*qs10
)
9667 oqs
->port_no
= u16_to_ofp(ntohs(qs10
->port_no
));
9668 oqs
->queue_id
= ntohl(qs10
->queue_id
);
9669 oqs
->tx_bytes
= ntohll(get_32aligned_be64(&qs10
->tx_bytes
));
9670 oqs
->tx_packets
= ntohll(get_32aligned_be64(&qs10
->tx_packets
));
9671 oqs
->tx_errors
= ntohll(get_32aligned_be64(&qs10
->tx_errors
));
9672 oqs
->duration_sec
= oqs
->duration_nsec
= UINT32_MAX
;
9678 ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats
*oqs
,
9679 const struct ofp11_queue_stats
*qs11
)
9683 error
= ofputil_port_from_ofp11(qs11
->port_no
, &oqs
->port_no
);
9688 oqs
->queue_id
= ntohl(qs11
->queue_id
);
9689 oqs
->tx_bytes
= ntohll(qs11
->tx_bytes
);
9690 oqs
->tx_packets
= ntohll(qs11
->tx_packets
);
9691 oqs
->tx_errors
= ntohll(qs11
->tx_errors
);
9692 oqs
->duration_sec
= oqs
->duration_nsec
= UINT32_MAX
;
9698 ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats
*oqs
,
9699 const struct ofp13_queue_stats
*qs13
)
9701 enum ofperr error
= ofputil_queue_stats_from_ofp11(oqs
, &qs13
->qs
);
9703 oqs
->duration_sec
= ntohl(qs13
->duration_sec
);
9704 oqs
->duration_nsec
= ntohl(qs13
->duration_nsec
);
9711 ofputil_pull_ofp14_queue_stats(struct ofputil_queue_stats
*oqs
,
9714 const struct ofp14_queue_stats
*qs14
;
9717 qs14
= ofpbuf_try_pull(msg
, sizeof *qs14
);
9719 return OFPERR_OFPBRC_BAD_LEN
;
9722 len
= ntohs(qs14
->length
);
9723 if (len
< sizeof *qs14
|| len
- sizeof *qs14
> msg
->size
) {
9724 return OFPERR_OFPBRC_BAD_LEN
;
9726 ofpbuf_pull(msg
, len
- sizeof *qs14
);
9728 /* No properties yet defined, so ignore them for now. */
9730 return ofputil_queue_stats_from_ofp13(oqs
, &qs14
->qs
);
9733 /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract
9734 * ofputil_queue_stats in 'qs'.
9736 * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow
9737 * message. Calling this function multiple times for a single 'msg' iterates
9738 * through the replies. The caller must initially leave 'msg''s layer pointers
9739 * null and not modify them between calls.
9741 * Returns 0 if successful, EOF if no replies were left in this 'msg',
9742 * otherwise a positive errno value. */
9744 ofputil_decode_queue_stats(struct ofputil_queue_stats
*qs
, struct ofpbuf
*msg
)
9749 error
= (msg
->header
? ofpraw_decode(&raw
, msg
->header
)
9750 : ofpraw_pull(&raw
, msg
));
9757 } else if (raw
== OFPRAW_OFPST14_QUEUE_REPLY
) {
9758 return ofputil_pull_ofp14_queue_stats(qs
, msg
);
9759 } else if (raw
== OFPRAW_OFPST13_QUEUE_REPLY
) {
9760 const struct ofp13_queue_stats
*qs13
;
9762 qs13
= ofpbuf_try_pull(msg
, sizeof *qs13
);
9766 return ofputil_queue_stats_from_ofp13(qs
, qs13
);
9767 } else if (raw
== OFPRAW_OFPST11_QUEUE_REPLY
) {
9768 const struct ofp11_queue_stats
*qs11
;
9770 qs11
= ofpbuf_try_pull(msg
, sizeof *qs11
);
9774 return ofputil_queue_stats_from_ofp11(qs
, qs11
);
9775 } else if (raw
== OFPRAW_OFPST10_QUEUE_REPLY
) {
9776 const struct ofp10_queue_stats
*qs10
;
9778 qs10
= ofpbuf_try_pull(msg
, sizeof *qs10
);
9782 return ofputil_queue_stats_from_ofp10(qs
, qs10
);
9788 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_QUEUE reply has %"PRIu32
" leftover "
9789 "bytes at end", msg
->size
);
9790 return OFPERR_OFPBRC_BAD_LEN
;
9794 ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats
*oqs
,
9795 struct ofp10_queue_stats
*qs10
)
9797 qs10
->port_no
= htons(ofp_to_u16(oqs
->port_no
));
9798 memset(qs10
->pad
, 0, sizeof qs10
->pad
);
9799 qs10
->queue_id
= htonl(oqs
->queue_id
);
9800 put_32aligned_be64(&qs10
->tx_bytes
, htonll(oqs
->tx_bytes
));
9801 put_32aligned_be64(&qs10
->tx_packets
, htonll(oqs
->tx_packets
));
9802 put_32aligned_be64(&qs10
->tx_errors
, htonll(oqs
->tx_errors
));
9806 ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats
*oqs
,
9807 struct ofp11_queue_stats
*qs11
)
9809 qs11
->port_no
= ofputil_port_to_ofp11(oqs
->port_no
);
9810 qs11
->queue_id
= htonl(oqs
->queue_id
);
9811 qs11
->tx_bytes
= htonll(oqs
->tx_bytes
);
9812 qs11
->tx_packets
= htonll(oqs
->tx_packets
);
9813 qs11
->tx_errors
= htonll(oqs
->tx_errors
);
9817 ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats
*oqs
,
9818 struct ofp13_queue_stats
*qs13
)
9820 ofputil_queue_stats_to_ofp11(oqs
, &qs13
->qs
);
9821 if (oqs
->duration_sec
!= UINT32_MAX
) {
9822 qs13
->duration_sec
= htonl(oqs
->duration_sec
);
9823 qs13
->duration_nsec
= htonl(oqs
->duration_nsec
);
9825 qs13
->duration_sec
= OVS_BE32_MAX
;
9826 qs13
->duration_nsec
= OVS_BE32_MAX
;
9831 ofputil_queue_stats_to_ofp14(const struct ofputil_queue_stats
*oqs
,
9832 struct ofp14_queue_stats
*qs14
)
9834 qs14
->length
= htons(sizeof *qs14
);
9835 memset(qs14
->pad
, 0, sizeof qs14
->pad
);
9836 ofputil_queue_stats_to_ofp13(oqs
, &qs14
->qs
);
9840 /* Encode a queue stat for 'oqs' and append it to 'replies'. */
9842 ofputil_append_queue_stat(struct ovs_list
*replies
,
9843 const struct ofputil_queue_stats
*oqs
)
9845 switch (ofpmp_version(replies
)) {
9846 case OFP13_VERSION
: {
9847 struct ofp13_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
9848 ofputil_queue_stats_to_ofp13(oqs
, reply
);
9853 case OFP11_VERSION
: {
9854 struct ofp11_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
9855 ofputil_queue_stats_to_ofp11(oqs
, reply
);
9859 case OFP10_VERSION
: {
9860 struct ofp10_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
9861 ofputil_queue_stats_to_ofp10(oqs
, reply
);
9867 case OFP16_VERSION
: {
9868 struct ofp14_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
9869 ofputil_queue_stats_to_ofp14(oqs
, reply
);
9879 ofputil_decode_bundle_ctrl(const struct ofp_header
*oh
,
9880 struct ofputil_bundle_ctrl_msg
*msg
)
9882 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
9883 enum ofpraw raw
= ofpraw_pull_assert(&b
);
9884 ovs_assert(raw
== OFPRAW_OFPT14_BUNDLE_CONTROL
9885 || raw
== OFPRAW_ONFT13_BUNDLE_CONTROL
);
9887 const struct ofp14_bundle_ctrl_msg
*m
= b
.msg
;
9888 msg
->bundle_id
= ntohl(m
->bundle_id
);
9889 msg
->type
= ntohs(m
->type
);
9890 msg
->flags
= ntohs(m
->flags
);
9896 ofputil_encode_bundle_ctrl_request(enum ofp_version ofp_version
,
9897 struct ofputil_bundle_ctrl_msg
*bc
)
9899 struct ofpbuf
*request
;
9900 struct ofp14_bundle_ctrl_msg
*m
;
9902 switch (ofp_version
) {
9906 ovs_fatal(0, "bundles need OpenFlow 1.3 or later "
9907 "(\'-O OpenFlow14\')");
9912 request
= ofpraw_alloc(ofp_version
== OFP13_VERSION
9913 ? OFPRAW_ONFT13_BUNDLE_CONTROL
9914 : OFPRAW_OFPT14_BUNDLE_CONTROL
, ofp_version
, 0);
9915 m
= ofpbuf_put_zeros(request
, sizeof *m
);
9917 m
->bundle_id
= htonl(bc
->bundle_id
);
9918 m
->type
= htons(bc
->type
);
9919 m
->flags
= htons(bc
->flags
);
9929 ofputil_encode_bundle_ctrl_reply(const struct ofp_header
*oh
,
9930 struct ofputil_bundle_ctrl_msg
*msg
)
9933 struct ofp14_bundle_ctrl_msg
*m
;
9935 buf
= ofpraw_alloc_reply(oh
->version
== OFP13_VERSION
9936 ? OFPRAW_ONFT13_BUNDLE_CONTROL
9937 : OFPRAW_OFPT14_BUNDLE_CONTROL
, oh
, 0);
9938 m
= ofpbuf_put_zeros(buf
, sizeof *m
);
9940 m
->bundle_id
= htonl(msg
->bundle_id
);
9941 m
->type
= htons(msg
->type
);
9942 m
->flags
= htons(msg
->flags
);
9947 /* Return true for bundlable state change requests, false for other messages.
9950 ofputil_is_bundlable(enum ofptype type
)
9953 /* Minimum required by OpenFlow 1.4. */
9954 case OFPTYPE_PORT_MOD
:
9955 case OFPTYPE_FLOW_MOD
:
9956 /* Other supported types. */
9957 case OFPTYPE_GROUP_MOD
:
9958 case OFPTYPE_PACKET_OUT
:
9961 /* Nice to have later. */
9962 case OFPTYPE_FLOW_MOD_TABLE_ID
:
9963 case OFPTYPE_TABLE_MOD
:
9964 case OFPTYPE_METER_MOD
:
9965 case OFPTYPE_NXT_TLV_TABLE_MOD
:
9967 /* Not to be bundlable. */
9968 case OFPTYPE_ECHO_REQUEST
:
9969 case OFPTYPE_FEATURES_REQUEST
:
9970 case OFPTYPE_GET_CONFIG_REQUEST
:
9971 case OFPTYPE_SET_CONFIG
:
9972 case OFPTYPE_BARRIER_REQUEST
:
9973 case OFPTYPE_ROLE_REQUEST
:
9974 case OFPTYPE_ECHO_REPLY
:
9975 case OFPTYPE_SET_FLOW_FORMAT
:
9976 case OFPTYPE_SET_PACKET_IN_FORMAT
:
9977 case OFPTYPE_SET_CONTROLLER_ID
:
9978 case OFPTYPE_FLOW_AGE
:
9979 case OFPTYPE_FLOW_MONITOR_CANCEL
:
9980 case OFPTYPE_SET_ASYNC_CONFIG
:
9981 case OFPTYPE_GET_ASYNC_REQUEST
:
9982 case OFPTYPE_DESC_STATS_REQUEST
:
9983 case OFPTYPE_FLOW_STATS_REQUEST
:
9984 case OFPTYPE_AGGREGATE_STATS_REQUEST
:
9985 case OFPTYPE_TABLE_STATS_REQUEST
:
9986 case OFPTYPE_TABLE_FEATURES_STATS_REQUEST
:
9987 case OFPTYPE_TABLE_DESC_REQUEST
:
9988 case OFPTYPE_PORT_STATS_REQUEST
:
9989 case OFPTYPE_QUEUE_STATS_REQUEST
:
9990 case OFPTYPE_PORT_DESC_STATS_REQUEST
:
9991 case OFPTYPE_FLOW_MONITOR_STATS_REQUEST
:
9992 case OFPTYPE_METER_STATS_REQUEST
:
9993 case OFPTYPE_METER_CONFIG_STATS_REQUEST
:
9994 case OFPTYPE_METER_FEATURES_STATS_REQUEST
:
9995 case OFPTYPE_GROUP_STATS_REQUEST
:
9996 case OFPTYPE_GROUP_DESC_STATS_REQUEST
:
9997 case OFPTYPE_GROUP_FEATURES_STATS_REQUEST
:
9998 case OFPTYPE_QUEUE_GET_CONFIG_REQUEST
:
9999 case OFPTYPE_BUNDLE_CONTROL
:
10000 case OFPTYPE_BUNDLE_ADD_MESSAGE
:
10001 case OFPTYPE_HELLO
:
10002 case OFPTYPE_ERROR
:
10003 case OFPTYPE_FEATURES_REPLY
:
10004 case OFPTYPE_GET_CONFIG_REPLY
:
10005 case OFPTYPE_PACKET_IN
:
10006 case OFPTYPE_FLOW_REMOVED
:
10007 case OFPTYPE_PORT_STATUS
:
10008 case OFPTYPE_BARRIER_REPLY
:
10009 case OFPTYPE_QUEUE_GET_CONFIG_REPLY
:
10010 case OFPTYPE_DESC_STATS_REPLY
:
10011 case OFPTYPE_FLOW_STATS_REPLY
:
10012 case OFPTYPE_QUEUE_STATS_REPLY
:
10013 case OFPTYPE_PORT_STATS_REPLY
:
10014 case OFPTYPE_TABLE_STATS_REPLY
:
10015 case OFPTYPE_AGGREGATE_STATS_REPLY
:
10016 case OFPTYPE_PORT_DESC_STATS_REPLY
:
10017 case OFPTYPE_ROLE_REPLY
:
10018 case OFPTYPE_FLOW_MONITOR_PAUSED
:
10019 case OFPTYPE_FLOW_MONITOR_RESUMED
:
10020 case OFPTYPE_FLOW_MONITOR_STATS_REPLY
:
10021 case OFPTYPE_GET_ASYNC_REPLY
:
10022 case OFPTYPE_GROUP_STATS_REPLY
:
10023 case OFPTYPE_GROUP_DESC_STATS_REPLY
:
10024 case OFPTYPE_GROUP_FEATURES_STATS_REPLY
:
10025 case OFPTYPE_METER_STATS_REPLY
:
10026 case OFPTYPE_METER_CONFIG_STATS_REPLY
:
10027 case OFPTYPE_METER_FEATURES_STATS_REPLY
:
10028 case OFPTYPE_TABLE_FEATURES_STATS_REPLY
:
10029 case OFPTYPE_TABLE_DESC_REPLY
:
10030 case OFPTYPE_ROLE_STATUS
:
10031 case OFPTYPE_REQUESTFORWARD
:
10032 case OFPTYPE_TABLE_STATUS
:
10033 case OFPTYPE_NXT_TLV_TABLE_REQUEST
:
10034 case OFPTYPE_NXT_TLV_TABLE_REPLY
:
10035 case OFPTYPE_NXT_RESUME
:
10036 case OFPTYPE_IPFIX_BRIDGE_STATS_REQUEST
:
10037 case OFPTYPE_IPFIX_BRIDGE_STATS_REPLY
:
10038 case OFPTYPE_IPFIX_FLOW_STATS_REQUEST
:
10039 case OFPTYPE_IPFIX_FLOW_STATS_REPLY
:
10040 case OFPTYPE_CT_FLUSH_ZONE
:
10048 ofputil_decode_bundle_add(const struct ofp_header
*oh
,
10049 struct ofputil_bundle_add_msg
*msg
,
10050 enum ofptype
*typep
)
10052 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
10053 enum ofpraw raw
= ofpraw_pull_assert(&b
);
10054 ovs_assert(raw
== OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE
10055 || raw
== OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE
);
10057 const struct ofp14_bundle_ctrl_msg
*m
= ofpbuf_pull(&b
, sizeof *m
);
10058 msg
->bundle_id
= ntohl(m
->bundle_id
);
10059 msg
->flags
= ntohs(m
->flags
);
10062 if (msg
->msg
->version
!= oh
->version
) {
10063 return OFPERR_OFPBFC_BAD_VERSION
;
10065 size_t inner_len
= ntohs(msg
->msg
->length
);
10066 if (inner_len
< sizeof(struct ofp_header
) || inner_len
> b
.size
) {
10067 return OFPERR_OFPBFC_MSG_BAD_LEN
;
10069 if (msg
->msg
->xid
!= oh
->xid
) {
10070 return OFPERR_OFPBFC_MSG_BAD_XID
;
10073 /* Reject unbundlable messages. */
10075 enum ofperr error
= ofptype_decode(&type
, msg
->msg
);
10077 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPT14_BUNDLE_ADD_MESSAGE contained "
10078 "message is unparsable (%s)", ofperr_get_name(error
));
10079 return OFPERR_OFPBFC_MSG_UNSUP
; /* 'error' would be confusing. */
10082 if (!ofputil_is_bundlable(type
)) {
10083 VLOG_WARN_RL(&bad_ofmsg_rl
, "%s message not allowed inside "
10084 "OFPT14_BUNDLE_ADD_MESSAGE", ofptype_get_name(type
));
10085 return OFPERR_OFPBFC_MSG_UNSUP
;
10095 ofputil_encode_bundle_add(enum ofp_version ofp_version
,
10096 struct ofputil_bundle_add_msg
*msg
)
10098 struct ofpbuf
*request
;
10099 struct ofp14_bundle_ctrl_msg
*m
;
10101 /* Must use the same xid as the embedded message. */
10102 request
= ofpraw_alloc_xid(ofp_version
== OFP13_VERSION
10103 ? OFPRAW_ONFT13_BUNDLE_ADD_MESSAGE
10104 : OFPRAW_OFPT14_BUNDLE_ADD_MESSAGE
, ofp_version
,
10105 msg
->msg
->xid
, ntohs(msg
->msg
->length
));
10106 m
= ofpbuf_put_zeros(request
, sizeof *m
);
10108 m
->bundle_id
= htonl(msg
->bundle_id
);
10109 m
->flags
= htons(msg
->flags
);
10110 ofpbuf_put(request
, msg
->msg
, ntohs(msg
->msg
->length
));
10112 ofpmsg_update_length(request
);
10117 encode_tlv_table_mappings(struct ofpbuf
*b
, struct ovs_list
*mappings
)
10119 struct ofputil_tlv_map
*map
;
10121 LIST_FOR_EACH (map
, list_node
, mappings
) {
10122 struct nx_tlv_map
*nx_map
;
10124 nx_map
= ofpbuf_put_zeros(b
, sizeof *nx_map
);
10125 nx_map
->option_class
= htons(map
->option_class
);
10126 nx_map
->option_type
= map
->option_type
;
10127 nx_map
->option_len
= map
->option_len
;
10128 nx_map
->index
= htons(map
->index
);
10133 ofputil_encode_tlv_table_mod(enum ofp_version ofp_version
,
10134 struct ofputil_tlv_table_mod
*ttm
)
10137 struct nx_tlv_table_mod
*nx_ttm
;
10139 b
= ofpraw_alloc(OFPRAW_NXT_TLV_TABLE_MOD
, ofp_version
, 0);
10140 nx_ttm
= ofpbuf_put_zeros(b
, sizeof *nx_ttm
);
10141 nx_ttm
->command
= htons(ttm
->command
);
10142 encode_tlv_table_mappings(b
, &ttm
->mappings
);
10148 decode_tlv_table_mappings(struct ofpbuf
*msg
, unsigned int max_fields
,
10149 struct ovs_list
*mappings
)
10151 ovs_list_init(mappings
);
10153 while (msg
->size
) {
10154 struct nx_tlv_map
*nx_map
;
10155 struct ofputil_tlv_map
*map
;
10157 nx_map
= ofpbuf_pull(msg
, sizeof *nx_map
);
10158 map
= xmalloc(sizeof *map
);
10159 ovs_list_push_back(mappings
, &map
->list_node
);
10161 map
->option_class
= ntohs(nx_map
->option_class
);
10162 map
->option_type
= nx_map
->option_type
;
10164 map
->option_len
= nx_map
->option_len
;
10165 if (map
->option_len
% 4 || map
->option_len
> TLV_MAX_OPT_SIZE
) {
10166 VLOG_WARN_RL(&bad_ofmsg_rl
,
10167 "tlv table option length (%u) is not a valid option size",
10169 ofputil_uninit_tlv_table(mappings
);
10170 return OFPERR_NXTTMFC_BAD_OPT_LEN
;
10173 map
->index
= ntohs(nx_map
->index
);
10174 if (map
->index
>= max_fields
) {
10175 VLOG_WARN_RL(&bad_ofmsg_rl
,
10176 "tlv table field index (%u) is too large (max %u)",
10177 map
->index
, max_fields
- 1);
10178 ofputil_uninit_tlv_table(mappings
);
10179 return OFPERR_NXTTMFC_BAD_FIELD_IDX
;
10187 ofputil_decode_tlv_table_mod(const struct ofp_header
*oh
,
10188 struct ofputil_tlv_table_mod
*ttm
)
10190 struct ofpbuf msg
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
10191 ofpraw_pull_assert(&msg
);
10193 struct nx_tlv_table_mod
*nx_ttm
= ofpbuf_pull(&msg
, sizeof *nx_ttm
);
10194 ttm
->command
= ntohs(nx_ttm
->command
);
10195 if (ttm
->command
> NXTTMC_CLEAR
) {
10196 VLOG_WARN_RL(&bad_ofmsg_rl
,
10197 "tlv table mod command (%u) is out of range",
10199 return OFPERR_NXTTMFC_BAD_COMMAND
;
10202 return decode_tlv_table_mappings(&msg
, TUN_METADATA_NUM_OPTS
,
10207 ofputil_encode_tlv_table_reply(const struct ofp_header
*oh
,
10208 struct ofputil_tlv_table_reply
*ttr
)
10211 struct nx_tlv_table_reply
*nx_ttr
;
10213 b
= ofpraw_alloc_reply(OFPRAW_NXT_TLV_TABLE_REPLY
, oh
, 0);
10214 nx_ttr
= ofpbuf_put_zeros(b
, sizeof *nx_ttr
);
10215 nx_ttr
->max_option_space
= htonl(ttr
->max_option_space
);
10216 nx_ttr
->max_fields
= htons(ttr
->max_fields
);
10218 encode_tlv_table_mappings(b
, &ttr
->mappings
);
10223 /* Decodes the NXT_TLV_TABLE_REPLY message in 'oh' into '*ttr'. Returns 0
10224 * if successful, otherwise an ofperr.
10226 * The decoder verifies that the indexes in 'ttr->mappings' are less than
10227 * 'ttr->max_fields', but the caller must ensure, if necessary, that they are
10228 * less than TUN_METADATA_NUM_OPTS. */
10230 ofputil_decode_tlv_table_reply(const struct ofp_header
*oh
,
10231 struct ofputil_tlv_table_reply
*ttr
)
10233 struct ofpbuf msg
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
10234 ofpraw_pull_assert(&msg
);
10236 struct nx_tlv_table_reply
*nx_ttr
= ofpbuf_pull(&msg
, sizeof *nx_ttr
);
10237 ttr
->max_option_space
= ntohl(nx_ttr
->max_option_space
);
10238 ttr
->max_fields
= ntohs(nx_ttr
->max_fields
);
10240 return decode_tlv_table_mappings(&msg
, ttr
->max_fields
, &ttr
->mappings
);
10244 ofputil_uninit_tlv_table(struct ovs_list
*mappings
)
10246 struct ofputil_tlv_map
*map
;
10248 LIST_FOR_EACH_POP (map
, list_node
, mappings
) {
10254 ofputil_async_msg_type_to_string(enum ofputil_async_msg_type type
)
10257 case OAM_PACKET_IN
: return "PACKET_IN";
10258 case OAM_PORT_STATUS
: return "PORT_STATUS";
10259 case OAM_FLOW_REMOVED
: return "FLOW_REMOVED";
10260 case OAM_ROLE_STATUS
: return "ROLE_STATUS";
10261 case OAM_TABLE_STATUS
: return "TABLE_STATUS";
10262 case OAM_REQUESTFORWARD
: return "REQUESTFORWARD";
10270 struct ofp14_async_prop
{
10271 uint64_t prop_type
;
10272 enum ofputil_async_msg_type oam
;
10274 uint32_t allowed10
, allowed14
;
10277 #define AP_PAIR(SLAVE_PROP_TYPE, OAM, A10, A14) \
10278 { SLAVE_PROP_TYPE, OAM, false, A10, (A14) ? (A14) : (A10) }, \
10279 { (SLAVE_PROP_TYPE + 1), OAM, true, A10, (A14) ? (A14) : (A10) }
10281 static const struct ofp14_async_prop async_props
[] = {
10282 AP_PAIR( 0, OAM_PACKET_IN
, OFPR10_BITS
, OFPR14_BITS
),
10283 AP_PAIR( 2, OAM_PORT_STATUS
, (1 << OFPPR_N_REASONS
) - 1, 0),
10284 AP_PAIR( 4, OAM_FLOW_REMOVED
, (1 << OVS_OFPRR_NONE
) - 1, 0),
10285 AP_PAIR( 6, OAM_ROLE_STATUS
, (1 << OFPCRR_N_REASONS
) - 1, 0),
10286 AP_PAIR( 8, OAM_TABLE_STATUS
, OFPTR_BITS
, 0),
10287 AP_PAIR(10, OAM_REQUESTFORWARD
, (1 << OFPRFR_N_REASONS
) - 1, 0),
10290 #define FOR_EACH_ASYNC_PROP(VAR) \
10291 for (const struct ofp14_async_prop *VAR = async_props; \
10292 VAR < &async_props[ARRAY_SIZE(async_props)]; VAR++)
10294 static const struct ofp14_async_prop
*
10295 get_ofp14_async_config_prop_by_prop_type(uint64_t prop_type
)
10297 FOR_EACH_ASYNC_PROP (ap
) {
10298 if (prop_type
== ap
->prop_type
) {
10305 static const struct ofp14_async_prop
*
10306 get_ofp14_async_config_prop_by_oam(enum ofputil_async_msg_type oam
,
10309 FOR_EACH_ASYNC_PROP (ap
) {
10310 if (ap
->oam
== oam
&& ap
->master
== master
) {
10318 ofp14_async_prop_allowed(const struct ofp14_async_prop
*prop
,
10319 enum ofp_version version
)
10321 return version
>= OFP14_VERSION
? prop
->allowed14
: prop
->allowed10
;
10325 encode_async_mask(const struct ofputil_async_cfg
*src
,
10326 const struct ofp14_async_prop
*ap
,
10327 enum ofp_version version
)
10329 uint32_t mask
= ap
->master
? src
->master
[ap
->oam
] : src
->slave
[ap
->oam
];
10330 return htonl(mask
& ofp14_async_prop_allowed(ap
, version
));
10334 decode_async_mask(ovs_be32 src
,
10335 const struct ofp14_async_prop
*ap
, enum ofp_version version
,
10336 bool loose
, struct ofputil_async_cfg
*dst
)
10338 uint32_t mask
= ntohl(src
);
10339 uint32_t allowed
= ofp14_async_prop_allowed(ap
, version
);
10340 if (mask
& ~allowed
) {
10341 OFPPROP_LOG(&bad_ofmsg_rl
, loose
,
10342 "bad value %#x for %s (allowed mask %#x)",
10343 mask
, ofputil_async_msg_type_to_string(ap
->oam
),
10347 return OFPERR_OFPACFC_INVALID
;
10351 if (ap
->oam
== OAM_PACKET_IN
) {
10352 if (mask
& (1u << OFPR_NO_MATCH
)) {
10353 mask
|= 1u << OFPR_EXPLICIT_MISS
;
10354 if (version
< OFP13_VERSION
) {
10355 mask
|= 1u << OFPR_IMPLICIT_MISS
;
10360 uint32_t *array
= ap
->master
? dst
->master
: dst
->slave
;
10361 array
[ap
->oam
] = mask
;
10366 parse_async_tlv(const struct ofpbuf
*property
,
10367 const struct ofp14_async_prop
*ap
,
10368 struct ofputil_async_cfg
*ac
,
10369 enum ofp_version version
, bool loose
)
10374 error
= ofpprop_parse_be32(property
, &mask
);
10379 if (ofpprop_is_experimenter(ap
->prop_type
)) {
10380 /* For experimenter properties, whether a property is for the master or
10381 * slave role is indicated by both 'type' and 'exp_type' in struct
10382 * ofp_prop_experimenter. Check that these are consistent. */
10383 const struct ofp_prop_experimenter
*ope
= property
->data
;
10384 bool should_be_master
= ope
->type
== htons(0xffff);
10385 if (should_be_master
!= ap
->master
) {
10386 VLOG_WARN_RL(&bad_ofmsg_rl
, "async property type %#"PRIx16
" "
10387 "indicates %s role but exp_type %"PRIu32
" indicates "
10390 should_be_master
? "master" : "slave",
10391 ntohl(ope
->exp_type
),
10392 ap
->master
? "master" : "slave");
10393 return OFPERR_OFPBPC_BAD_EXP_TYPE
;
10397 return decode_async_mask(mask
, ap
, version
, loose
, ac
);
10401 decode_legacy_async_masks(const ovs_be32 masks
[2],
10402 enum ofputil_async_msg_type oam
,
10403 enum ofp_version version
,
10404 struct ofputil_async_cfg
*dst
)
10406 for (int i
= 0; i
< 2; i
++) {
10407 bool master
= i
== 0;
10408 const struct ofp14_async_prop
*ap
10409 = get_ofp14_async_config_prop_by_oam(oam
, master
);
10410 decode_async_mask(masks
[i
], ap
, version
, true, dst
);
10414 /* Decodes the OpenFlow "set async config" request and "get async config
10415 * reply" message in '*oh' into an abstract form in 'ac'.
10417 * Some versions of the "set async config" request change only some of the
10418 * settings and leave the others alone. This function uses 'basis' as the
10419 * initial state for decoding these. Other versions of the request change all
10420 * the settings; this function ignores 'basis' when decoding these.
10422 * If 'loose' is true, this function ignores properties and values that it does
10423 * not understand, as a controller would want to do when interpreting
10424 * capabilities provided by a switch. If 'loose' is false, this function
10425 * treats unknown properties and values as an error, as a switch would want to
10426 * do when interpreting a configuration request made by a controller.
10428 * Returns 0 if successful, otherwise an OFPERR_* value.
10430 * Returns error code OFPERR_OFPACFC_INVALID if the value of mask is not in
10431 * the valid range of mask.
10433 * Returns error code OFPERR_OFPACFC_UNSUPPORTED if the configuration is not
10436 ofputil_decode_set_async_config(const struct ofp_header
*oh
, bool loose
,
10437 const struct ofputil_async_cfg
*basis
,
10438 struct ofputil_async_cfg
*ac
)
10440 struct ofpbuf b
= ofpbuf_const_initializer(oh
, ntohs(oh
->length
));
10441 enum ofpraw raw
= ofpraw_pull_assert(&b
);
10443 if (raw
== OFPRAW_OFPT13_SET_ASYNC
||
10444 raw
== OFPRAW_NXT_SET_ASYNC_CONFIG
||
10445 raw
== OFPRAW_OFPT13_GET_ASYNC_REPLY
) {
10446 const struct nx_async_config
*msg
= ofpmsg_body(oh
);
10448 *ac
= OFPUTIL_ASYNC_CFG_INIT
;
10449 decode_legacy_async_masks(msg
->packet_in_mask
, OAM_PACKET_IN
,
10451 decode_legacy_async_masks(msg
->port_status_mask
, OAM_PORT_STATUS
,
10453 decode_legacy_async_masks(msg
->flow_removed_mask
, OAM_FLOW_REMOVED
,
10455 } else if (raw
== OFPRAW_OFPT14_SET_ASYNC
||
10456 raw
== OFPRAW_OFPT14_GET_ASYNC_REPLY
||
10457 raw
== OFPRAW_NXT_SET_ASYNC_CONFIG2
) {
10459 while (b
.size
> 0) {
10460 struct ofpbuf property
;
10464 error
= ofpprop_pull__(&b
, &property
, 8, 0xfffe, &type
);
10469 const struct ofp14_async_prop
*ap
10470 = get_ofp14_async_config_prop_by_prop_type(type
);
10472 ? parse_async_tlv(&property
, ap
, ac
, oh
->version
, loose
)
10473 : OFPPROP_UNKNOWN(loose
, "async config", type
));
10475 /* Most messages use OFPBPC_BAD_TYPE but async has its own (who
10476 * knows why, it's OpenFlow. */
10477 if (error
== OFPERR_OFPBPC_BAD_TYPE
) {
10478 error
= OFPERR_OFPACFC_UNSUPPORTED
;
10484 return OFPERR_OFPBRC_BAD_VERSION
;
10490 encode_legacy_async_masks(const struct ofputil_async_cfg
*ac
,
10491 enum ofputil_async_msg_type oam
,
10492 enum ofp_version version
,
10495 for (int i
= 0; i
< 2; i
++) {
10496 bool master
= i
== 0;
10497 const struct ofp14_async_prop
*ap
10498 = get_ofp14_async_config_prop_by_oam(oam
, master
);
10499 masks
[i
] = encode_async_mask(ac
, ap
, version
);
10504 ofputil_put_async_config__(const struct ofputil_async_cfg
*ac
,
10505 struct ofpbuf
*buf
, bool tlv
,
10506 enum ofp_version version
, uint32_t oams
)
10509 struct nx_async_config
*msg
= ofpbuf_put_zeros(buf
, sizeof *msg
);
10510 encode_legacy_async_masks(ac
, OAM_PACKET_IN
, version
,
10511 msg
->packet_in_mask
);
10512 encode_legacy_async_masks(ac
, OAM_PORT_STATUS
, version
,
10513 msg
->port_status_mask
);
10514 encode_legacy_async_masks(ac
, OAM_FLOW_REMOVED
, version
,
10515 msg
->flow_removed_mask
);
10517 FOR_EACH_ASYNC_PROP (ap
) {
10518 if (oams
& (1u << ap
->oam
)) {
10519 size_t ofs
= buf
->size
;
10520 ofpprop_put_be32(buf
, ap
->prop_type
,
10521 encode_async_mask(ac
, ap
, version
));
10523 /* For experimenter properties, we need to use type 0xfffe for
10524 * master and 0xffff for slaves. */
10525 if (ofpprop_is_experimenter(ap
->prop_type
)) {
10526 struct ofp_prop_experimenter
*ope
10527 = ofpbuf_at_assert(buf
, ofs
, sizeof *ope
);
10528 ope
->type
= ap
->master
? htons(0xffff) : htons(0xfffe);
10535 /* Encodes and returns a reply to the OFPT_GET_ASYNC_REQUEST in 'oh' that
10536 * states that the asynchronous message configuration is 'ac'. */
10538 ofputil_encode_get_async_reply(const struct ofp_header
*oh
,
10539 const struct ofputil_async_cfg
*ac
)
10541 struct ofpbuf
*buf
;
10543 enum ofpraw raw
= (oh
->version
< OFP14_VERSION
10544 ? OFPRAW_OFPT13_GET_ASYNC_REPLY
10545 : OFPRAW_OFPT14_GET_ASYNC_REPLY
);
10546 struct ofpbuf
*reply
= ofpraw_alloc_reply(raw
, oh
, 0);
10547 ofputil_put_async_config__(ac
, reply
,
10548 raw
== OFPRAW_OFPT14_GET_ASYNC_REPLY
,
10549 oh
->version
, UINT32_MAX
);
10555 /* Encodes and returns a message, in a format appropriate for OpenFlow version
10556 * 'ofp_version', that sets the asynchronous message configuration to 'ac'.
10558 * Specify 'oams' as a bitmap of OAM_* that indicate the asynchronous messages
10559 * to configure. OF1.0 through OF1.3 can't natively configure a subset of
10560 * messages, so more messages than requested may be configured. OF1.0 through
10561 * OF1.3 also can't configure OVS extension OAM_* values, so if 'oam' includes
10562 * any extensions then this function encodes an Open vSwitch extension message
10563 * that does support configuring OVS extension OAM_*. */
10565 ofputil_encode_set_async_config(const struct ofputil_async_cfg
*ac
,
10566 uint32_t oams
, enum ofp_version ofp_version
)
10568 enum ofpraw raw
= (ofp_version
>= OFP14_VERSION
? OFPRAW_OFPT14_SET_ASYNC
10569 : oams
& OAM_EXTENSIONS
? OFPRAW_NXT_SET_ASYNC_CONFIG2
10570 : ofp_version
>= OFP13_VERSION
? OFPRAW_OFPT13_SET_ASYNC
10571 : OFPRAW_NXT_SET_ASYNC_CONFIG
);
10572 struct ofpbuf
*request
= ofpraw_alloc(raw
, ofp_version
, 0);
10573 ofputil_put_async_config__(ac
, request
,
10574 (raw
== OFPRAW_OFPT14_SET_ASYNC
||
10575 raw
== OFPRAW_NXT_SET_ASYNC_CONFIG2
),
10576 ofp_version
, oams
);
10580 struct ofputil_async_cfg
10581 ofputil_async_cfg_default(enum ofp_version version
)
10583 /* We enable all of the OF1.4 reasons regardless of 'version' because the
10584 * reasons added in OF1.4 just are just refinements of the OFPR_ACTION
10585 * introduced in OF1.0, breaking it into more specific categories. When we
10586 * encode these for earlier OpenFlow versions, we translate them into
10588 uint32_t pin
= OFPR14_BITS
& ~(1u << OFPR_INVALID_TTL
);
10589 pin
|= 1u << OFPR_EXPLICIT_MISS
;
10590 if (version
<= OFP12_VERSION
) {
10591 pin
|= 1u << OFPR_IMPLICIT_MISS
;
10594 return (struct ofputil_async_cfg
) {
10595 .master
[OAM_PACKET_IN
] = pin
,
10597 .master
[OAM_FLOW_REMOVED
]
10598 = (version
>= OFP14_VERSION
? OFPRR14_BITS
: OFPRR10_BITS
),
10600 .master
[OAM_PORT_STATUS
] = OFPPR_BITS
,
10601 .slave
[OAM_PORT_STATUS
] = OFPPR_BITS
,
10606 ofputil_put_ofp14_table_desc(const struct ofputil_table_desc
*td
,
10607 struct ofpbuf
*b
, enum ofp_version version
)
10609 struct ofp14_table_desc
*otd
;
10610 struct ofp14_table_mod_prop_vacancy
*otv
;
10613 start_otd
= b
->size
;
10614 ofpbuf_put_zeros(b
, sizeof *otd
);
10616 ofpprop_put_u32(b
, OFPTMPT14_EVICTION
, td
->eviction_flags
);
10618 otv
= ofpbuf_put_zeros(b
, sizeof *otv
);
10619 otv
->type
= htons(OFPTMPT14_VACANCY
);
10620 otv
->length
= htons(sizeof *otv
);
10621 otv
->vacancy_down
= td
->table_vacancy
.vacancy_down
;
10622 otv
->vacancy_up
= td
->table_vacancy
.vacancy_up
;
10623 otv
->vacancy
= td
->table_vacancy
.vacancy
;
10625 otd
= ofpbuf_at_assert(b
, start_otd
, sizeof *otd
);
10626 otd
->length
= htons(b
->size
- start_otd
);
10627 otd
->table_id
= td
->table_id
;
10628 otd
->config
= ofputil_encode_table_config(OFPUTIL_TABLE_MISS_DEFAULT
,
10629 td
->eviction
, td
->vacancy
,
10633 /* Converts the abstract form of a "table status" message in '*ts' into an
10634 * OpenFlow message suitable for 'protocol', and returns that encoded form in
10635 * a buffer owned by the caller. */
10637 ofputil_encode_table_status(const struct ofputil_table_status
*ts
,
10638 enum ofputil_protocol protocol
)
10640 enum ofp_version version
;
10643 version
= ofputil_protocol_to_ofp_version(protocol
);
10644 if (version
>= OFP14_VERSION
) {
10646 struct ofp14_table_status
*ots
;
10648 raw
= OFPRAW_OFPT14_TABLE_STATUS
;
10649 b
= ofpraw_alloc_xid(raw
, version
, htonl(0), 0);
10650 ots
= ofpbuf_put_zeros(b
, sizeof *ots
);
10651 ots
->reason
= ts
->reason
;
10652 ofputil_put_ofp14_table_desc(&ts
->desc
, b
, version
);
10653 ofpmsg_update_length(b
);
10660 /* Decodes the OpenFlow "table status" message in '*ots' into an abstract form
10661 * in '*ts'. Returns 0 if successful, otherwise an OFPERR_* value. */
10663 ofputil_decode_table_status(const struct ofp_header
*oh
,
10664 struct ofputil_table_status
*ts
)
10666 const struct ofp14_table_status
*ots
;
10671 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
10672 raw
= ofpraw_pull_assert(&b
);
10673 ots
= ofpbuf_pull(&b
, sizeof *ots
);
10675 if (raw
== OFPRAW_OFPT14_TABLE_STATUS
) {
10676 if (ots
->reason
!= OFPTR_VACANCY_DOWN
10677 && ots
->reason
!= OFPTR_VACANCY_UP
) {
10678 return OFPERR_OFPBPC_BAD_VALUE
;
10680 ts
->reason
= ots
->reason
;
10682 error
= ofputil_decode_table_desc(&b
, &ts
->desc
, oh
->version
);
10685 return OFPERR_OFPBRC_BAD_VERSION
;