2 * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include "ofp-print.h"
22 #include <sys/types.h>
23 #include <netinet/in.h>
24 #include <netinet/icmp6.h>
27 #include "byte-order.h"
28 #include "classifier.h"
29 #include "dynamic-string.h"
31 #include "meta-flow.h"
32 #include "multipath.h"
35 #include "ofp-actions.h"
36 #include "ofp-errors.h"
42 #include "unaligned.h"
43 #include "type-props.h"
46 VLOG_DEFINE_THIS_MODULE(ofp_util
);
48 /* Rate limit for OpenFlow message parse errors. These always indicate a bug
49 * in the peer and so there's not much point in showing a lot of them. */
50 static struct vlog_rate_limit bad_ofmsg_rl
= VLOG_RATE_LIMIT_INIT(1, 5);
52 /* Given the wildcard bit count in the least-significant 6 of 'wcbits', returns
53 * an IP netmask with a 1 in each bit that must match and a 0 in each bit that
56 * The bits in 'wcbits' are in the format used in enum ofp_flow_wildcards: 0
57 * is exact match, 1 ignores the LSB, 2 ignores the 2 least-significant bits,
58 * ..., 32 and higher wildcard the entire field. This is the *opposite* of the
59 * usual convention where e.g. /24 indicates that 8 bits (not 24 bits) are
62 ofputil_wcbits_to_netmask(int wcbits
)
65 return wcbits
< 32 ? htonl(~((1u << wcbits
) - 1)) : 0;
68 /* Given the IP netmask 'netmask', returns the number of bits of the IP address
69 * that it wildcards, that is, the number of 0-bits in 'netmask', a number
70 * between 0 and 32 inclusive.
72 * If 'netmask' is not a CIDR netmask (see ip_is_cidr()), the return value will
73 * still be in the valid range but isn't otherwise meaningful. */
75 ofputil_netmask_to_wcbits(ovs_be32 netmask
)
77 return 32 - ip_count_cidr_bits(netmask
);
80 /* Converts the OpenFlow 1.0 wildcards in 'ofpfw' (OFPFW10_*) into a
81 * flow_wildcards in 'wc' for use in struct match. It is the caller's
82 * responsibility to handle the special case where the flow match's dl_vlan is
83 * set to OFP_VLAN_NONE. */
85 ofputil_wildcard_from_ofpfw10(uint32_t ofpfw
, struct flow_wildcards
*wc
)
87 BUILD_ASSERT_DECL(FLOW_WC_SEQ
== 20);
89 /* Initialize most of wc. */
90 flow_wildcards_init_catchall(wc
);
92 if (!(ofpfw
& OFPFW10_IN_PORT
)) {
93 wc
->masks
.in_port
.ofp_port
= u16_to_ofp(UINT16_MAX
);
96 if (!(ofpfw
& OFPFW10_NW_TOS
)) {
97 wc
->masks
.nw_tos
|= IP_DSCP_MASK
;
100 if (!(ofpfw
& OFPFW10_NW_PROTO
)) {
101 wc
->masks
.nw_proto
= UINT8_MAX
;
103 wc
->masks
.nw_src
= ofputil_wcbits_to_netmask(ofpfw
104 >> OFPFW10_NW_SRC_SHIFT
);
105 wc
->masks
.nw_dst
= ofputil_wcbits_to_netmask(ofpfw
106 >> OFPFW10_NW_DST_SHIFT
);
108 if (!(ofpfw
& OFPFW10_TP_SRC
)) {
109 wc
->masks
.tp_src
= htons(UINT16_MAX
);
111 if (!(ofpfw
& OFPFW10_TP_DST
)) {
112 wc
->masks
.tp_dst
= htons(UINT16_MAX
);
115 if (!(ofpfw
& OFPFW10_DL_SRC
)) {
116 memset(wc
->masks
.dl_src
, 0xff, ETH_ADDR_LEN
);
118 if (!(ofpfw
& OFPFW10_DL_DST
)) {
119 memset(wc
->masks
.dl_dst
, 0xff, ETH_ADDR_LEN
);
121 if (!(ofpfw
& OFPFW10_DL_TYPE
)) {
122 wc
->masks
.dl_type
= htons(UINT16_MAX
);
126 if (!(ofpfw
& OFPFW10_DL_VLAN_PCP
)) {
127 wc
->masks
.vlan_tci
|= htons(VLAN_PCP_MASK
| VLAN_CFI
);
129 if (!(ofpfw
& OFPFW10_DL_VLAN
)) {
130 wc
->masks
.vlan_tci
|= htons(VLAN_VID_MASK
| VLAN_CFI
);
134 /* Converts the ofp10_match in 'ofmatch' into a struct match in 'match'. */
136 ofputil_match_from_ofp10_match(const struct ofp10_match
*ofmatch
,
139 uint32_t ofpfw
= ntohl(ofmatch
->wildcards
) & OFPFW10_ALL
;
141 /* Initialize match->wc. */
142 memset(&match
->flow
, 0, sizeof match
->flow
);
143 ofputil_wildcard_from_ofpfw10(ofpfw
, &match
->wc
);
145 /* Initialize most of match->flow. */
146 match
->flow
.nw_src
= ofmatch
->nw_src
;
147 match
->flow
.nw_dst
= ofmatch
->nw_dst
;
148 match
->flow
.in_port
.ofp_port
= u16_to_ofp(ntohs(ofmatch
->in_port
));
149 match
->flow
.dl_type
= ofputil_dl_type_from_openflow(ofmatch
->dl_type
);
150 match
->flow
.tp_src
= ofmatch
->tp_src
;
151 match
->flow
.tp_dst
= ofmatch
->tp_dst
;
152 memcpy(match
->flow
.dl_src
, ofmatch
->dl_src
, ETH_ADDR_LEN
);
153 memcpy(match
->flow
.dl_dst
, ofmatch
->dl_dst
, ETH_ADDR_LEN
);
154 match
->flow
.nw_tos
= ofmatch
->nw_tos
& IP_DSCP_MASK
;
155 match
->flow
.nw_proto
= ofmatch
->nw_proto
;
157 /* Translate VLANs. */
158 if (!(ofpfw
& OFPFW10_DL_VLAN
) &&
159 ofmatch
->dl_vlan
== htons(OFP10_VLAN_NONE
)) {
160 /* Match only packets without 802.1Q header.
162 * When OFPFW10_DL_VLAN_PCP is wildcarded, this is obviously correct.
164 * If OFPFW10_DL_VLAN_PCP is matched, the flow match is contradictory,
165 * because we can't have a specific PCP without an 802.1Q header.
166 * However, older versions of OVS treated this as matching packets
167 * withut an 802.1Q header, so we do here too. */
168 match
->flow
.vlan_tci
= htons(0);
169 match
->wc
.masks
.vlan_tci
= htons(0xffff);
171 ovs_be16 vid
, pcp
, tci
;
173 vid
= ofmatch
->dl_vlan
& htons(VLAN_VID_MASK
);
174 pcp
= htons((ofmatch
->dl_vlan_pcp
<< VLAN_PCP_SHIFT
) & VLAN_PCP_MASK
);
175 tci
= vid
| pcp
| htons(VLAN_CFI
);
176 match
->flow
.vlan_tci
= tci
& match
->wc
.masks
.vlan_tci
;
180 match_zero_wildcarded_fields(match
);
183 /* Convert 'match' into the OpenFlow 1.0 match structure 'ofmatch'. */
185 ofputil_match_to_ofp10_match(const struct match
*match
,
186 struct ofp10_match
*ofmatch
)
188 const struct flow_wildcards
*wc
= &match
->wc
;
191 /* Figure out most OpenFlow wildcards. */
193 if (!wc
->masks
.in_port
.ofp_port
) {
194 ofpfw
|= OFPFW10_IN_PORT
;
196 if (!wc
->masks
.dl_type
) {
197 ofpfw
|= OFPFW10_DL_TYPE
;
199 if (!wc
->masks
.nw_proto
) {
200 ofpfw
|= OFPFW10_NW_PROTO
;
202 ofpfw
|= (ofputil_netmask_to_wcbits(wc
->masks
.nw_src
)
203 << OFPFW10_NW_SRC_SHIFT
);
204 ofpfw
|= (ofputil_netmask_to_wcbits(wc
->masks
.nw_dst
)
205 << OFPFW10_NW_DST_SHIFT
);
206 if (!(wc
->masks
.nw_tos
& IP_DSCP_MASK
)) {
207 ofpfw
|= OFPFW10_NW_TOS
;
209 if (!wc
->masks
.tp_src
) {
210 ofpfw
|= OFPFW10_TP_SRC
;
212 if (!wc
->masks
.tp_dst
) {
213 ofpfw
|= OFPFW10_TP_DST
;
215 if (eth_addr_is_zero(wc
->masks
.dl_src
)) {
216 ofpfw
|= OFPFW10_DL_SRC
;
218 if (eth_addr_is_zero(wc
->masks
.dl_dst
)) {
219 ofpfw
|= OFPFW10_DL_DST
;
222 /* Translate VLANs. */
223 ofmatch
->dl_vlan
= htons(0);
224 ofmatch
->dl_vlan_pcp
= 0;
225 if (match
->wc
.masks
.vlan_tci
== htons(0)) {
226 ofpfw
|= OFPFW10_DL_VLAN
| OFPFW10_DL_VLAN_PCP
;
227 } else if (match
->wc
.masks
.vlan_tci
& htons(VLAN_CFI
)
228 && !(match
->flow
.vlan_tci
& htons(VLAN_CFI
))) {
229 ofmatch
->dl_vlan
= htons(OFP10_VLAN_NONE
);
230 ofpfw
|= OFPFW10_DL_VLAN_PCP
;
232 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_VID_MASK
))) {
233 ofpfw
|= OFPFW10_DL_VLAN
;
235 ofmatch
->dl_vlan
= htons(vlan_tci_to_vid(match
->flow
.vlan_tci
));
238 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_PCP_MASK
))) {
239 ofpfw
|= OFPFW10_DL_VLAN_PCP
;
241 ofmatch
->dl_vlan_pcp
= vlan_tci_to_pcp(match
->flow
.vlan_tci
);
245 /* Compose most of the match structure. */
246 ofmatch
->wildcards
= htonl(ofpfw
);
247 ofmatch
->in_port
= htons(ofp_to_u16(match
->flow
.in_port
.ofp_port
));
248 memcpy(ofmatch
->dl_src
, match
->flow
.dl_src
, ETH_ADDR_LEN
);
249 memcpy(ofmatch
->dl_dst
, match
->flow
.dl_dst
, ETH_ADDR_LEN
);
250 ofmatch
->dl_type
= ofputil_dl_type_to_openflow(match
->flow
.dl_type
);
251 ofmatch
->nw_src
= match
->flow
.nw_src
;
252 ofmatch
->nw_dst
= match
->flow
.nw_dst
;
253 ofmatch
->nw_tos
= match
->flow
.nw_tos
& IP_DSCP_MASK
;
254 ofmatch
->nw_proto
= match
->flow
.nw_proto
;
255 ofmatch
->tp_src
= match
->flow
.tp_src
;
256 ofmatch
->tp_dst
= match
->flow
.tp_dst
;
257 memset(ofmatch
->pad1
, '\0', sizeof ofmatch
->pad1
);
258 memset(ofmatch
->pad2
, '\0', sizeof ofmatch
->pad2
);
262 ofputil_pull_ofp11_match(struct ofpbuf
*buf
, struct match
*match
,
263 uint16_t *padded_match_len
)
265 struct ofp11_match_header
*omh
= buf
->data
;
268 if (buf
->size
< sizeof *omh
) {
269 return OFPERR_OFPBMC_BAD_LEN
;
272 match_len
= ntohs(omh
->length
);
274 switch (ntohs(omh
->type
)) {
275 case OFPMT_STANDARD
: {
276 struct ofp11_match
*om
;
278 if (match_len
!= sizeof *om
|| buf
->size
< sizeof *om
) {
279 return OFPERR_OFPBMC_BAD_LEN
;
281 om
= ofpbuf_pull(buf
, sizeof *om
);
282 if (padded_match_len
) {
283 *padded_match_len
= match_len
;
285 return ofputil_match_from_ofp11_match(om
, match
);
289 if (padded_match_len
) {
290 *padded_match_len
= ROUND_UP(match_len
, 8);
292 return oxm_pull_match(buf
, match
);
295 return OFPERR_OFPBMC_BAD_TYPE
;
299 /* Converts the ofp11_match in 'match' into a struct match in 'match. Returns
300 * 0 if successful, otherwise an OFPERR_* value. */
302 ofputil_match_from_ofp11_match(const struct ofp11_match
*ofmatch
,
305 uint16_t wc
= ntohl(ofmatch
->wildcards
);
306 uint8_t dl_src_mask
[ETH_ADDR_LEN
];
307 uint8_t dl_dst_mask
[ETH_ADDR_LEN
];
308 bool ipv4
, arp
, rarp
;
311 match_init_catchall(match
);
313 if (!(wc
& OFPFW11_IN_PORT
)) {
317 error
= ofputil_port_from_ofp11(ofmatch
->in_port
, &ofp_port
);
319 return OFPERR_OFPBMC_BAD_VALUE
;
321 match_set_in_port(match
, ofp_port
);
324 for (i
= 0; i
< ETH_ADDR_LEN
; i
++) {
325 dl_src_mask
[i
] = ~ofmatch
->dl_src_mask
[i
];
327 match_set_dl_src_masked(match
, ofmatch
->dl_src
, dl_src_mask
);
329 for (i
= 0; i
< ETH_ADDR_LEN
; i
++) {
330 dl_dst_mask
[i
] = ~ofmatch
->dl_dst_mask
[i
];
332 match_set_dl_dst_masked(match
, ofmatch
->dl_dst
, dl_dst_mask
);
334 if (!(wc
& OFPFW11_DL_VLAN
)) {
335 if (ofmatch
->dl_vlan
== htons(OFPVID11_NONE
)) {
336 /* Match only packets without a VLAN tag. */
337 match
->flow
.vlan_tci
= htons(0);
338 match
->wc
.masks
.vlan_tci
= htons(UINT16_MAX
);
340 if (ofmatch
->dl_vlan
== htons(OFPVID11_ANY
)) {
341 /* Match any packet with a VLAN tag regardless of VID. */
342 match
->flow
.vlan_tci
= htons(VLAN_CFI
);
343 match
->wc
.masks
.vlan_tci
= htons(VLAN_CFI
);
344 } else if (ntohs(ofmatch
->dl_vlan
) < 4096) {
345 /* Match only packets with the specified VLAN VID. */
346 match
->flow
.vlan_tci
= htons(VLAN_CFI
) | ofmatch
->dl_vlan
;
347 match
->wc
.masks
.vlan_tci
= htons(VLAN_CFI
| VLAN_VID_MASK
);
350 return OFPERR_OFPBMC_BAD_VALUE
;
353 if (!(wc
& OFPFW11_DL_VLAN_PCP
)) {
354 if (ofmatch
->dl_vlan_pcp
<= 7) {
355 match
->flow
.vlan_tci
|= htons(ofmatch
->dl_vlan_pcp
357 match
->wc
.masks
.vlan_tci
|= htons(VLAN_PCP_MASK
);
360 return OFPERR_OFPBMC_BAD_VALUE
;
366 if (!(wc
& OFPFW11_DL_TYPE
)) {
367 match_set_dl_type(match
,
368 ofputil_dl_type_from_openflow(ofmatch
->dl_type
));
371 ipv4
= match
->flow
.dl_type
== htons(ETH_TYPE_IP
);
372 arp
= match
->flow
.dl_type
== htons(ETH_TYPE_ARP
);
373 rarp
= match
->flow
.dl_type
== htons(ETH_TYPE_RARP
);
375 if (ipv4
&& !(wc
& OFPFW11_NW_TOS
)) {
376 if (ofmatch
->nw_tos
& ~IP_DSCP_MASK
) {
378 return OFPERR_OFPBMC_BAD_VALUE
;
381 match_set_nw_dscp(match
, ofmatch
->nw_tos
);
384 if (ipv4
|| arp
|| rarp
) {
385 if (!(wc
& OFPFW11_NW_PROTO
)) {
386 match_set_nw_proto(match
, ofmatch
->nw_proto
);
388 match_set_nw_src_masked(match
, ofmatch
->nw_src
, ~ofmatch
->nw_src_mask
);
389 match_set_nw_dst_masked(match
, ofmatch
->nw_dst
, ~ofmatch
->nw_dst_mask
);
392 #define OFPFW11_TP_ALL (OFPFW11_TP_SRC | OFPFW11_TP_DST)
393 if (ipv4
&& (wc
& OFPFW11_TP_ALL
) != OFPFW11_TP_ALL
) {
394 switch (match
->flow
.nw_proto
) {
396 /* "A.2.3 Flow Match Structures" in OF1.1 says:
398 * The tp_src and tp_dst fields will be ignored unless the
399 * network protocol specified is as TCP, UDP or SCTP.
401 * but I'm pretty sure we should support ICMP too, otherwise
402 * that's a regression from OF1.0. */
403 if (!(wc
& OFPFW11_TP_SRC
)) {
404 uint16_t icmp_type
= ntohs(ofmatch
->tp_src
);
405 if (icmp_type
< 0x100) {
406 match_set_icmp_type(match
, icmp_type
);
408 return OFPERR_OFPBMC_BAD_FIELD
;
411 if (!(wc
& OFPFW11_TP_DST
)) {
412 uint16_t icmp_code
= ntohs(ofmatch
->tp_dst
);
413 if (icmp_code
< 0x100) {
414 match_set_icmp_code(match
, icmp_code
);
416 return OFPERR_OFPBMC_BAD_FIELD
;
423 if (!(wc
& (OFPFW11_TP_SRC
))) {
424 match_set_tp_src(match
, ofmatch
->tp_src
);
426 if (!(wc
& (OFPFW11_TP_DST
))) {
427 match_set_tp_dst(match
, ofmatch
->tp_dst
);
432 /* We don't support SCTP and it seems that we should tell the
433 * controller, since OF1.1 implementations are supposed to. */
434 return OFPERR_OFPBMC_BAD_FIELD
;
437 /* OF1.1 says explicitly to ignore this. */
442 if (eth_type_mpls(match
->flow
.dl_type
)) {
443 enum { OFPFW11_MPLS_ALL
= OFPFW11_MPLS_LABEL
| OFPFW11_MPLS_TC
};
445 if ((wc
& OFPFW11_MPLS_ALL
) != OFPFW11_MPLS_ALL
) {
446 /* MPLS not supported. */
447 return OFPERR_OFPBMC_BAD_TAG
;
451 match_set_metadata_masked(match
, ofmatch
->metadata
,
452 ~ofmatch
->metadata_mask
);
457 /* Convert 'match' into the OpenFlow 1.1 match structure 'ofmatch'. */
459 ofputil_match_to_ofp11_match(const struct match
*match
,
460 struct ofp11_match
*ofmatch
)
465 memset(ofmatch
, 0, sizeof *ofmatch
);
466 ofmatch
->omh
.type
= htons(OFPMT_STANDARD
);
467 ofmatch
->omh
.length
= htons(OFPMT11_STANDARD_LENGTH
);
469 if (!match
->wc
.masks
.in_port
.ofp_port
) {
470 wc
|= OFPFW11_IN_PORT
;
472 ofmatch
->in_port
= ofputil_port_to_ofp11(match
->flow
.in_port
.ofp_port
);
475 memcpy(ofmatch
->dl_src
, match
->flow
.dl_src
, ETH_ADDR_LEN
);
476 for (i
= 0; i
< ETH_ADDR_LEN
; i
++) {
477 ofmatch
->dl_src_mask
[i
] = ~match
->wc
.masks
.dl_src
[i
];
480 memcpy(ofmatch
->dl_dst
, match
->flow
.dl_dst
, ETH_ADDR_LEN
);
481 for (i
= 0; i
< ETH_ADDR_LEN
; i
++) {
482 ofmatch
->dl_dst_mask
[i
] = ~match
->wc
.masks
.dl_dst
[i
];
485 if (match
->wc
.masks
.vlan_tci
== htons(0)) {
486 wc
|= OFPFW11_DL_VLAN
| OFPFW11_DL_VLAN_PCP
;
487 } else if (match
->wc
.masks
.vlan_tci
& htons(VLAN_CFI
)
488 && !(match
->flow
.vlan_tci
& htons(VLAN_CFI
))) {
489 ofmatch
->dl_vlan
= htons(OFPVID11_NONE
);
490 wc
|= OFPFW11_DL_VLAN_PCP
;
492 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_VID_MASK
))) {
493 ofmatch
->dl_vlan
= htons(OFPVID11_ANY
);
495 ofmatch
->dl_vlan
= htons(vlan_tci_to_vid(match
->flow
.vlan_tci
));
498 if (!(match
->wc
.masks
.vlan_tci
& htons(VLAN_PCP_MASK
))) {
499 wc
|= OFPFW11_DL_VLAN_PCP
;
501 ofmatch
->dl_vlan_pcp
= vlan_tci_to_pcp(match
->flow
.vlan_tci
);
505 if (!match
->wc
.masks
.dl_type
) {
506 wc
|= OFPFW11_DL_TYPE
;
508 ofmatch
->dl_type
= ofputil_dl_type_to_openflow(match
->flow
.dl_type
);
511 if (!(match
->wc
.masks
.nw_tos
& IP_DSCP_MASK
)) {
512 wc
|= OFPFW11_NW_TOS
;
514 ofmatch
->nw_tos
= match
->flow
.nw_tos
& IP_DSCP_MASK
;
517 if (!match
->wc
.masks
.nw_proto
) {
518 wc
|= OFPFW11_NW_PROTO
;
520 ofmatch
->nw_proto
= match
->flow
.nw_proto
;
523 ofmatch
->nw_src
= match
->flow
.nw_src
;
524 ofmatch
->nw_src_mask
= ~match
->wc
.masks
.nw_src
;
525 ofmatch
->nw_dst
= match
->flow
.nw_dst
;
526 ofmatch
->nw_dst_mask
= ~match
->wc
.masks
.nw_dst
;
528 if (!match
->wc
.masks
.tp_src
) {
529 wc
|= OFPFW11_TP_SRC
;
531 ofmatch
->tp_src
= match
->flow
.tp_src
;
534 if (!match
->wc
.masks
.tp_dst
) {
535 wc
|= OFPFW11_TP_DST
;
537 ofmatch
->tp_dst
= match
->flow
.tp_dst
;
540 /* MPLS not supported. */
541 wc
|= OFPFW11_MPLS_LABEL
;
542 wc
|= OFPFW11_MPLS_TC
;
544 ofmatch
->metadata
= match
->flow
.metadata
;
545 ofmatch
->metadata_mask
= ~match
->wc
.masks
.metadata
;
547 ofmatch
->wildcards
= htonl(wc
);
550 /* Given a 'dl_type' value in the format used in struct flow, returns the
551 * corresponding 'dl_type' value for use in an ofp10_match or ofp11_match
554 ofputil_dl_type_to_openflow(ovs_be16 flow_dl_type
)
556 return (flow_dl_type
== htons(FLOW_DL_TYPE_NONE
)
557 ? htons(OFP_DL_TYPE_NOT_ETH_TYPE
)
561 /* Given a 'dl_type' value in the format used in an ofp10_match or ofp11_match
562 * structure, returns the corresponding 'dl_type' value for use in struct
565 ofputil_dl_type_from_openflow(ovs_be16 ofp_dl_type
)
567 return (ofp_dl_type
== htons(OFP_DL_TYPE_NOT_ETH_TYPE
)
568 ? htons(FLOW_DL_TYPE_NONE
)
574 struct proto_abbrev
{
575 enum ofputil_protocol protocol
;
579 /* Most users really don't care about some of the differences between
580 * protocols. These abbreviations help with that. */
581 static const struct proto_abbrev proto_abbrevs
[] = {
582 { OFPUTIL_P_ANY
, "any" },
583 { OFPUTIL_P_OF10_STD_ANY
, "OpenFlow10" },
584 { OFPUTIL_P_OF10_NXM_ANY
, "NXM" },
585 { OFPUTIL_P_ANY_OXM
, "OXM" },
587 #define N_PROTO_ABBREVS ARRAY_SIZE(proto_abbrevs)
589 enum ofputil_protocol ofputil_flow_dump_protocols
[] = {
595 size_t ofputil_n_flow_dump_protocols
= ARRAY_SIZE(ofputil_flow_dump_protocols
);
597 /* Returns the set of ofputil_protocols that are supported with the given
598 * OpenFlow 'version'. 'version' should normally be an 8-bit OpenFlow version
599 * identifier (e.g. 0x01 for OpenFlow 1.0, 0x02 for OpenFlow 1.1). Returns 0
600 * if 'version' is not supported or outside the valid range. */
601 enum ofputil_protocol
602 ofputil_protocols_from_ofp_version(enum ofp_version version
)
606 return OFPUTIL_P_OF10_STD_ANY
| OFPUTIL_P_OF10_NXM_ANY
;
608 return OFPUTIL_P_OF12_OXM
;
610 return OFPUTIL_P_OF13_OXM
;
617 /* Returns the ofputil_protocol that is initially in effect on an OpenFlow
618 * connection that has negotiated the given 'version'. 'version' should
619 * normally be an 8-bit OpenFlow version identifier (e.g. 0x01 for OpenFlow
620 * 1.0, 0x02 for OpenFlow 1.1). Returns 0 if 'version' is not supported or
621 * outside the valid range. */
622 enum ofputil_protocol
623 ofputil_protocol_from_ofp_version(enum ofp_version version
)
625 return rightmost_1bit(ofputil_protocols_from_ofp_version(version
));
628 /* Returns the OpenFlow protocol version number (e.g. OFP10_VERSION,
629 * etc.) that corresponds to 'protocol'. */
631 ofputil_protocol_to_ofp_version(enum ofputil_protocol protocol
)
634 case OFPUTIL_P_OF10_STD
:
635 case OFPUTIL_P_OF10_STD_TID
:
636 case OFPUTIL_P_OF10_NXM
:
637 case OFPUTIL_P_OF10_NXM_TID
:
638 return OFP10_VERSION
;
639 case OFPUTIL_P_OF12_OXM
:
640 return OFP12_VERSION
;
641 case OFPUTIL_P_OF13_OXM
:
642 return OFP13_VERSION
;
648 /* Returns a bitmap of OpenFlow versions that are supported by at
649 * least one of the 'protocols'. */
651 ofputil_protocols_to_version_bitmap(enum ofputil_protocol protocols
)
655 for (; protocols
; protocols
= zero_rightmost_1bit(protocols
)) {
656 enum ofputil_protocol protocol
= rightmost_1bit(protocols
);
658 bitmap
|= 1u << ofputil_protocol_to_ofp_version(protocol
);
664 /* Returns the set of protocols that are supported on top of the
665 * OpenFlow versions included in 'bitmap'. */
666 enum ofputil_protocol
667 ofputil_protocols_from_version_bitmap(uint32_t bitmap
)
669 enum ofputil_protocol protocols
= 0;
671 for (; bitmap
; bitmap
= zero_rightmost_1bit(bitmap
)) {
672 enum ofp_version version
= rightmost_1bit_idx(bitmap
);
674 protocols
|= ofputil_protocols_from_ofp_version(version
);
680 /* Returns true if 'protocol' is a single OFPUTIL_P_* value, false
683 ofputil_protocol_is_valid(enum ofputil_protocol protocol
)
685 return protocol
& OFPUTIL_P_ANY
&& is_pow2(protocol
);
688 /* Returns the equivalent of 'protocol' with the Nicira flow_mod_table_id
689 * extension turned on or off if 'enable' is true or false, respectively.
691 * This extension is only useful for protocols whose "standard" version does
692 * not allow specific tables to be modified. In particular, this is true of
693 * OpenFlow 1.0. In later versions of OpenFlow, a flow_mod request always
694 * specifies a table ID and so there is no need for such an extension. When
695 * 'protocol' is such a protocol that doesn't need a flow_mod_table_id
696 * extension, this function just returns its 'protocol' argument unchanged
697 * regardless of the value of 'enable'. */
698 enum ofputil_protocol
699 ofputil_protocol_set_tid(enum ofputil_protocol protocol
, bool enable
)
702 case OFPUTIL_P_OF10_STD
:
703 case OFPUTIL_P_OF10_STD_TID
:
704 return enable
? OFPUTIL_P_OF10_STD_TID
: OFPUTIL_P_OF10_STD
;
706 case OFPUTIL_P_OF10_NXM
:
707 case OFPUTIL_P_OF10_NXM_TID
:
708 return enable
? OFPUTIL_P_OF10_NXM_TID
: OFPUTIL_P_OF10_NXM
;
710 case OFPUTIL_P_OF12_OXM
:
711 return OFPUTIL_P_OF12_OXM
;
713 case OFPUTIL_P_OF13_OXM
:
714 return OFPUTIL_P_OF13_OXM
;
721 /* Returns the "base" version of 'protocol'. That is, if 'protocol' includes
722 * some extension to a standard protocol version, the return value is the
723 * standard version of that protocol without any extension. If 'protocol' is a
724 * standard protocol version, returns 'protocol' unchanged. */
725 enum ofputil_protocol
726 ofputil_protocol_to_base(enum ofputil_protocol protocol
)
728 return ofputil_protocol_set_tid(protocol
, false);
731 /* Returns 'new_base' with any extensions taken from 'cur'. */
732 enum ofputil_protocol
733 ofputil_protocol_set_base(enum ofputil_protocol cur
,
734 enum ofputil_protocol new_base
)
736 bool tid
= (cur
& OFPUTIL_P_TID
) != 0;
739 case OFPUTIL_P_OF10_STD
:
740 case OFPUTIL_P_OF10_STD_TID
:
741 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_STD
, tid
);
743 case OFPUTIL_P_OF10_NXM
:
744 case OFPUTIL_P_OF10_NXM_TID
:
745 return ofputil_protocol_set_tid(OFPUTIL_P_OF10_NXM
, tid
);
747 case OFPUTIL_P_OF12_OXM
:
748 return ofputil_protocol_set_tid(OFPUTIL_P_OF12_OXM
, tid
);
750 case OFPUTIL_P_OF13_OXM
:
751 return ofputil_protocol_set_tid(OFPUTIL_P_OF13_OXM
, tid
);
758 /* Returns a string form of 'protocol', if a simple form exists (that is, if
759 * 'protocol' is either a single protocol or it is a combination of protocols
760 * that have a single abbreviation). Otherwise, returns NULL. */
762 ofputil_protocol_to_string(enum ofputil_protocol protocol
)
764 const struct proto_abbrev
*p
;
766 /* Use a "switch" statement for single-bit names so that we get a compiler
767 * warning if we forget any. */
769 case OFPUTIL_P_OF10_NXM
:
770 return "NXM-table_id";
772 case OFPUTIL_P_OF10_NXM_TID
:
773 return "NXM+table_id";
775 case OFPUTIL_P_OF10_STD
:
776 return "OpenFlow10-table_id";
778 case OFPUTIL_P_OF10_STD_TID
:
779 return "OpenFlow10+table_id";
781 case OFPUTIL_P_OF12_OXM
:
782 return "OXM-OpenFlow12";
784 case OFPUTIL_P_OF13_OXM
:
785 return "OXM-OpenFlow13";
788 /* Check abbreviations. */
789 for (p
= proto_abbrevs
; p
< &proto_abbrevs
[N_PROTO_ABBREVS
]; p
++) {
790 if (protocol
== p
->protocol
) {
798 /* Returns a string that represents 'protocols'. The return value might be a
799 * comma-separated list if 'protocols' doesn't have a simple name. The return
800 * value is "none" if 'protocols' is 0.
802 * The caller must free the returned string (with free()). */
804 ofputil_protocols_to_string(enum ofputil_protocol protocols
)
808 ovs_assert(!(protocols
& ~OFPUTIL_P_ANY
));
809 if (protocols
== 0) {
810 return xstrdup("none");
815 const struct proto_abbrev
*p
;
819 ds_put_char(&s
, ',');
822 for (p
= proto_abbrevs
; p
< &proto_abbrevs
[N_PROTO_ABBREVS
]; p
++) {
823 if ((protocols
& p
->protocol
) == p
->protocol
) {
824 ds_put_cstr(&s
, p
->name
);
825 protocols
&= ~p
->protocol
;
830 for (i
= 0; i
< CHAR_BIT
* sizeof(enum ofputil_protocol
); i
++) {
831 enum ofputil_protocol bit
= 1u << i
;
833 if (protocols
& bit
) {
834 ds_put_cstr(&s
, ofputil_protocol_to_string(bit
));
843 return ds_steal_cstr(&s
);
846 static enum ofputil_protocol
847 ofputil_protocol_from_string__(const char *s
, size_t n
)
849 const struct proto_abbrev
*p
;
852 for (i
= 0; i
< CHAR_BIT
* sizeof(enum ofputil_protocol
); i
++) {
853 enum ofputil_protocol bit
= 1u << i
;
854 const char *name
= ofputil_protocol_to_string(bit
);
856 if (name
&& n
== strlen(name
) && !strncasecmp(s
, name
, n
)) {
861 for (p
= proto_abbrevs
; p
< &proto_abbrevs
[N_PROTO_ABBREVS
]; p
++) {
862 if (n
== strlen(p
->name
) && !strncasecmp(s
, p
->name
, n
)) {
870 /* Returns the nonempty set of protocols represented by 's', which can be a
871 * single protocol name or abbreviation or a comma-separated list of them.
873 * Aborts the program with an error message if 's' is invalid. */
874 enum ofputil_protocol
875 ofputil_protocols_from_string(const char *s
)
877 const char *orig_s
= s
;
878 enum ofputil_protocol protocols
;
882 enum ofputil_protocol p
;
891 p
= ofputil_protocol_from_string__(s
, n
);
893 ovs_fatal(0, "%.*s: unknown flow protocol", (int) n
, s
);
901 ovs_fatal(0, "%s: no flow protocol specified", orig_s
);
907 ofputil_version_from_string(const char *s
)
909 if (!strcasecmp(s
, "OpenFlow10")) {
910 return OFP10_VERSION
;
912 if (!strcasecmp(s
, "OpenFlow11")) {
913 return OFP11_VERSION
;
915 if (!strcasecmp(s
, "OpenFlow12")) {
916 return OFP12_VERSION
;
918 if (!strcasecmp(s
, "OpenFlow13")) {
919 return OFP13_VERSION
;
925 is_delimiter(unsigned char c
)
927 return isspace(c
) || c
== ',';
931 ofputil_versions_from_string(const char *s
)
941 if (is_delimiter(s
[i
])) {
946 while (s
[i
+ j
] && !is_delimiter(s
[i
+ j
])) {
949 key
= xmemdup0(s
+ i
, j
);
950 version
= ofputil_version_from_string(key
);
952 VLOG_FATAL("Unknown OpenFlow version: \"%s\"", key
);
955 bitmap
|= 1u << version
;
963 ofputil_versions_from_strings(char ** const s
, size_t count
)
968 int version
= ofputil_version_from_string(s
[count
]);
970 VLOG_WARN("Unknown OpenFlow version: \"%s\"", s
[count
]);
972 bitmap
|= 1u << version
;
980 ofputil_version_to_string(enum ofp_version ofp_version
)
982 switch (ofp_version
) {
997 ofputil_packet_in_format_is_valid(enum nx_packet_in_format packet_in_format
)
999 switch (packet_in_format
) {
1000 case NXPIF_OPENFLOW10
:
1009 ofputil_packet_in_format_to_string(enum nx_packet_in_format packet_in_format
)
1011 switch (packet_in_format
) {
1012 case NXPIF_OPENFLOW10
:
1013 return "openflow10";
1022 ofputil_packet_in_format_from_string(const char *s
)
1024 return (!strcmp(s
, "openflow10") ? NXPIF_OPENFLOW10
1025 : !strcmp(s
, "nxm") ? NXPIF_NXM
1030 regs_fully_wildcarded(const struct flow_wildcards
*wc
)
1034 for (i
= 0; i
< FLOW_N_REGS
; i
++) {
1035 if (wc
->masks
.regs
[i
] != 0) {
1042 /* Returns a bit-mask of ofputil_protocols that can be used for sending 'match'
1043 * to a switch (e.g. to add or remove a flow). Only NXM can handle tunnel IDs,
1044 * registers, or fixing the Ethernet multicast bit. Otherwise, it's better to
1045 * use OpenFlow 1.0 protocol for backward compatibility. */
1046 enum ofputil_protocol
1047 ofputil_usable_protocols(const struct match
*match
)
1049 const struct flow_wildcards
*wc
= &match
->wc
;
1051 BUILD_ASSERT_DECL(FLOW_WC_SEQ
== 20);
1053 /* These tunnel params can't be sent in a flow_mod */
1054 if (wc
->masks
.tunnel
.ip_ttl
1055 || wc
->masks
.tunnel
.ip_tos
|| wc
->masks
.tunnel
.flags
) {
1056 return OFPUTIL_P_NONE
;
1059 /* skb_mark and skb_priority can't be sent in a flow_mod */
1060 if (wc
->masks
.skb_mark
|| wc
->masks
.skb_priority
) {
1061 return OFPUTIL_P_NONE
;
1064 /* NXM, OXM, and OF1.1 support bitwise matching on ethernet addresses. */
1065 if (!eth_mask_is_exact(wc
->masks
.dl_src
)
1066 && !eth_addr_is_zero(wc
->masks
.dl_src
)) {
1067 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1068 | OFPUTIL_P_OF13_OXM
;
1070 if (!eth_mask_is_exact(wc
->masks
.dl_dst
)
1071 && !eth_addr_is_zero(wc
->masks
.dl_dst
)) {
1072 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1073 | OFPUTIL_P_OF13_OXM
;
1076 /* NXM, OXM, and OF1.1+ support matching metadata. */
1077 if (wc
->masks
.metadata
!= htonll(0)) {
1078 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1079 | OFPUTIL_P_OF13_OXM
;
1082 /* NXM and OXM support matching ARP hardware addresses. */
1083 if (!eth_addr_is_zero(wc
->masks
.arp_sha
) ||
1084 !eth_addr_is_zero(wc
->masks
.arp_tha
)) {
1085 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1086 | OFPUTIL_P_OF13_OXM
;
1089 /* NXM and OXM support matching IPv6 traffic. */
1090 if (match
->flow
.dl_type
== htons(ETH_TYPE_IPV6
)) {
1091 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1092 | OFPUTIL_P_OF13_OXM
;
1095 /* NXM and OXM support matching registers. */
1096 if (!regs_fully_wildcarded(wc
)) {
1097 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1098 | OFPUTIL_P_OF13_OXM
;
1101 /* NXM and OXM support matching tun_id, tun_src, and tun_dst. */
1102 if (wc
->masks
.tunnel
.tun_id
!= htonll(0)
1103 || wc
->masks
.tunnel
.ip_src
!= htonl(0)
1104 || wc
->masks
.tunnel
.ip_dst
!= htonl(0)) {
1105 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1106 | OFPUTIL_P_OF13_OXM
;
1109 /* NXM and OXM support matching fragments. */
1110 if (wc
->masks
.nw_frag
) {
1111 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1112 | OFPUTIL_P_OF13_OXM
;
1115 /* NXM and OXM support matching IPv6 flow label. */
1116 if (wc
->masks
.ipv6_label
) {
1117 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1118 | OFPUTIL_P_OF13_OXM
;
1121 /* NXM and OXM support matching IP ECN bits. */
1122 if (wc
->masks
.nw_tos
& IP_ECN_MASK
) {
1123 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1124 | OFPUTIL_P_OF13_OXM
;
1127 /* NXM and OXM support matching IP TTL/hop limit. */
1128 if (wc
->masks
.nw_ttl
) {
1129 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1130 | OFPUTIL_P_OF13_OXM
;
1133 /* NXM and OXM support non-CIDR IPv4 address masks. */
1134 if (!ip_is_cidr(wc
->masks
.nw_src
) || !ip_is_cidr(wc
->masks
.nw_dst
)) {
1135 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1136 | OFPUTIL_P_OF13_OXM
;
1139 /* NXM and OXM support bitwise matching on transport port. */
1140 if ((wc
->masks
.tp_src
&& wc
->masks
.tp_src
!= htons(UINT16_MAX
)) ||
1141 (wc
->masks
.tp_dst
&& wc
->masks
.tp_dst
!= htons(UINT16_MAX
))) {
1142 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1143 | OFPUTIL_P_OF13_OXM
;
1146 /* NXM and OF1.1+ support matching MPLS label */
1147 if (wc
->masks
.mpls_lse
& htonl(MPLS_LABEL_MASK
)) {
1148 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1149 | OFPUTIL_P_OF13_OXM
;
1152 /* NXM and OF1.1+ support matching MPLS TC */
1153 if (wc
->masks
.mpls_lse
& htonl(MPLS_TC_MASK
)) {
1154 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1155 | OFPUTIL_P_OF13_OXM
;
1158 /* NXM and OF1.3+ support matching MPLS stack flag */
1159 /* Allow for OF1.2 as there doesn't seem to be a
1160 * particularly good reason not to */
1161 if (wc
->masks
.mpls_lse
& htonl(MPLS_BOS_MASK
)) {
1162 return OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1163 | OFPUTIL_P_OF13_OXM
;
1166 /* Other formats can express this rule. */
1167 return OFPUTIL_P_ANY
;
1171 ofputil_format_version(struct ds
*msg
, enum ofp_version version
)
1173 ds_put_format(msg
, "0x%02x", version
);
1177 ofputil_format_version_name(struct ds
*msg
, enum ofp_version version
)
1179 ds_put_cstr(msg
, ofputil_version_to_string(version
));
1183 ofputil_format_version_bitmap__(struct ds
*msg
, uint32_t bitmap
,
1184 void (*format_version
)(struct ds
*msg
,
1188 format_version(msg
, raw_ctz(bitmap
));
1189 bitmap
= zero_rightmost_1bit(bitmap
);
1191 ds_put_cstr(msg
, ", ");
1197 ofputil_format_version_bitmap(struct ds
*msg
, uint32_t bitmap
)
1199 ofputil_format_version_bitmap__(msg
, bitmap
, ofputil_format_version
);
1203 ofputil_format_version_bitmap_names(struct ds
*msg
, uint32_t bitmap
)
1205 ofputil_format_version_bitmap__(msg
, bitmap
, ofputil_format_version_name
);
1209 ofputil_decode_hello_bitmap(const struct ofp_hello_elem_header
*oheh
,
1210 uint32_t *allowed_versionsp
)
1212 uint16_t bitmap_len
= ntohs(oheh
->length
) - sizeof *oheh
;
1213 const ovs_be32
*bitmap
= (const ovs_be32
*) (oheh
+ 1);
1214 uint32_t allowed_versions
;
1216 if (!bitmap_len
|| bitmap_len
% sizeof *bitmap
) {
1220 /* Only use the first 32-bit element of the bitmap as that is all the
1221 * current implementation supports. Subsequent elements are ignored which
1222 * should have no effect on session negotiation until Open vSwtich supports
1223 * wire-protocol versions greater than 31.
1225 allowed_versions
= ntohl(bitmap
[0]);
1227 if (allowed_versions
& 1) {
1228 /* There's no OpenFlow version 0. */
1229 VLOG_WARN_RL(&bad_ofmsg_rl
, "peer claims to support invalid OpenFlow "
1231 allowed_versions
&= ~1u;
1234 if (!allowed_versions
) {
1235 VLOG_WARN_RL(&bad_ofmsg_rl
, "peer does not support any OpenFlow "
1236 "version (between 0x01 and 0x1f)");
1240 *allowed_versionsp
= allowed_versions
;
1245 version_bitmap_from_version(uint8_t ofp_version
)
1247 return ((ofp_version
< 32 ? 1u << ofp_version
: 0) - 1) << 1;
1250 /* Decodes OpenFlow OFPT_HELLO message 'oh', storing into '*allowed_versions'
1251 * the set of OpenFlow versions for which 'oh' announces support.
1253 * Because of how OpenFlow defines OFPT_HELLO messages, this function is always
1254 * successful, and thus '*allowed_versions' is always initialized. However, it
1255 * returns false if 'oh' contains some data that could not be fully understood,
1256 * true if 'oh' was completely parsed. */
1258 ofputil_decode_hello(const struct ofp_header
*oh
, uint32_t *allowed_versions
)
1263 ofpbuf_use_const(&msg
, oh
, ntohs(oh
->length
));
1264 ofpbuf_pull(&msg
, sizeof *oh
);
1266 *allowed_versions
= version_bitmap_from_version(oh
->version
);
1268 const struct ofp_hello_elem_header
*oheh
;
1271 if (msg
.size
< sizeof *oheh
) {
1276 len
= ntohs(oheh
->length
);
1277 if (len
< sizeof *oheh
|| !ofpbuf_try_pull(&msg
, ROUND_UP(len
, 8))) {
1281 if (oheh
->type
!= htons(OFPHET_VERSIONBITMAP
)
1282 || !ofputil_decode_hello_bitmap(oheh
, allowed_versions
)) {
1290 /* Returns true if 'allowed_versions' needs to be accompanied by a version
1291 * bitmap to be correctly expressed in an OFPT_HELLO message. */
1293 should_send_version_bitmap(uint32_t allowed_versions
)
1295 return !is_pow2((allowed_versions
>> 1) + 1);
1298 /* Create an OFPT_HELLO message that expresses support for the OpenFlow
1299 * versions in the 'allowed_versions' bitmaps and returns the message. */
1301 ofputil_encode_hello(uint32_t allowed_versions
)
1303 enum ofp_version ofp_version
;
1306 ofp_version
= leftmost_1bit_idx(allowed_versions
);
1307 msg
= ofpraw_alloc(OFPRAW_OFPT_HELLO
, ofp_version
, 0);
1309 if (should_send_version_bitmap(allowed_versions
)) {
1310 struct ofp_hello_elem_header
*oheh
;
1313 map_len
= sizeof allowed_versions
;
1314 oheh
= ofpbuf_put_zeros(msg
, ROUND_UP(map_len
+ sizeof *oheh
, 8));
1315 oheh
->type
= htons(OFPHET_VERSIONBITMAP
);
1316 oheh
->length
= htons(map_len
+ sizeof *oheh
);
1317 *(ovs_be32
*)(oheh
+ 1) = htonl(allowed_versions
);
1319 ofpmsg_update_length(msg
);
1325 /* Returns an OpenFlow message that, sent on an OpenFlow connection whose
1326 * protocol is 'current', at least partly transitions the protocol to 'want'.
1327 * Stores in '*next' the protocol that will be in effect on the OpenFlow
1328 * connection if the switch processes the returned message correctly. (If
1329 * '*next != want' then the caller will have to iterate.)
1331 * If 'current == want', or if it is not possible to transition from 'current'
1332 * to 'want' (because, for example, 'current' and 'want' use different OpenFlow
1333 * protocol versions), returns NULL and stores 'current' in '*next'. */
1335 ofputil_encode_set_protocol(enum ofputil_protocol current
,
1336 enum ofputil_protocol want
,
1337 enum ofputil_protocol
*next
)
1339 enum ofp_version cur_version
, want_version
;
1340 enum ofputil_protocol cur_base
, want_base
;
1341 bool cur_tid
, want_tid
;
1343 cur_version
= ofputil_protocol_to_ofp_version(current
);
1344 want_version
= ofputil_protocol_to_ofp_version(want
);
1345 if (cur_version
!= want_version
) {
1350 cur_base
= ofputil_protocol_to_base(current
);
1351 want_base
= ofputil_protocol_to_base(want
);
1352 if (cur_base
!= want_base
) {
1353 *next
= ofputil_protocol_set_base(current
, want_base
);
1355 switch (want_base
) {
1356 case OFPUTIL_P_OF10_NXM
:
1357 return ofputil_encode_nx_set_flow_format(NXFF_NXM
);
1359 case OFPUTIL_P_OF10_STD
:
1360 return ofputil_encode_nx_set_flow_format(NXFF_OPENFLOW10
);
1362 case OFPUTIL_P_OF12_OXM
:
1363 case OFPUTIL_P_OF13_OXM
:
1364 /* There are only one of each OpenFlow 1.2+ protocols and we already
1365 * verified above that we're not trying to change versions. */
1368 case OFPUTIL_P_OF10_STD_TID
:
1369 case OFPUTIL_P_OF10_NXM_TID
:
1374 cur_tid
= (current
& OFPUTIL_P_TID
) != 0;
1375 want_tid
= (want
& OFPUTIL_P_TID
) != 0;
1376 if (cur_tid
!= want_tid
) {
1377 *next
= ofputil_protocol_set_tid(current
, want_tid
);
1378 return ofputil_make_flow_mod_table_id(want_tid
);
1381 ovs_assert(current
== want
);
1387 /* Returns an NXT_SET_FLOW_FORMAT message that can be used to set the flow
1388 * format to 'nxff'. */
1390 ofputil_encode_nx_set_flow_format(enum nx_flow_format nxff
)
1392 struct nx_set_flow_format
*sff
;
1395 ovs_assert(ofputil_nx_flow_format_is_valid(nxff
));
1397 msg
= ofpraw_alloc(OFPRAW_NXT_SET_FLOW_FORMAT
, OFP10_VERSION
, 0);
1398 sff
= ofpbuf_put_zeros(msg
, sizeof *sff
);
1399 sff
->format
= htonl(nxff
);
1404 /* Returns the base protocol if 'flow_format' is a valid NXFF_* value, false
1406 enum ofputil_protocol
1407 ofputil_nx_flow_format_to_protocol(enum nx_flow_format flow_format
)
1409 switch (flow_format
) {
1410 case NXFF_OPENFLOW10
:
1411 return OFPUTIL_P_OF10_STD
;
1414 return OFPUTIL_P_OF10_NXM
;
1421 /* Returns true if 'flow_format' is a valid NXFF_* value, false otherwise. */
1423 ofputil_nx_flow_format_is_valid(enum nx_flow_format flow_format
)
1425 return ofputil_nx_flow_format_to_protocol(flow_format
) != 0;
1428 /* Returns a string version of 'flow_format', which must be a valid NXFF_*
1431 ofputil_nx_flow_format_to_string(enum nx_flow_format flow_format
)
1433 switch (flow_format
) {
1434 case NXFF_OPENFLOW10
:
1435 return "openflow10";
1444 ofputil_make_set_packet_in_format(enum ofp_version ofp_version
,
1445 enum nx_packet_in_format packet_in_format
)
1447 struct nx_set_packet_in_format
*spif
;
1450 msg
= ofpraw_alloc(OFPRAW_NXT_SET_PACKET_IN_FORMAT
, ofp_version
, 0);
1451 spif
= ofpbuf_put_zeros(msg
, sizeof *spif
);
1452 spif
->format
= htonl(packet_in_format
);
1457 /* Returns an OpenFlow message that can be used to turn the flow_mod_table_id
1458 * extension on or off (according to 'flow_mod_table_id'). */
1460 ofputil_make_flow_mod_table_id(bool flow_mod_table_id
)
1462 struct nx_flow_mod_table_id
*nfmti
;
1465 msg
= ofpraw_alloc(OFPRAW_NXT_FLOW_MOD_TABLE_ID
, OFP10_VERSION
, 0);
1466 nfmti
= ofpbuf_put_zeros(msg
, sizeof *nfmti
);
1467 nfmti
->set
= flow_mod_table_id
;
1471 /* Converts an OFPT_FLOW_MOD or NXT_FLOW_MOD message 'oh' into an abstract
1472 * flow_mod in 'fm'. Returns 0 if successful, otherwise an OpenFlow error
1475 * Uses 'ofpacts' to store the abstract OFPACT_* version of 'oh''s actions.
1476 * The caller must initialize 'ofpacts' and retains ownership of it.
1477 * 'fm->ofpacts' will point into the 'ofpacts' buffer.
1479 * Does not validate the flow_mod actions. The caller should do that, with
1480 * ofpacts_check(). */
1482 ofputil_decode_flow_mod(struct ofputil_flow_mod
*fm
,
1483 const struct ofp_header
*oh
,
1484 enum ofputil_protocol protocol
,
1485 struct ofpbuf
*ofpacts
)
1491 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
1492 raw
= ofpraw_pull_assert(&b
);
1493 if (raw
== OFPRAW_OFPT11_FLOW_MOD
) {
1494 /* Standard OpenFlow 1.1 flow_mod. */
1495 const struct ofp11_flow_mod
*ofm
;
1498 ofm
= ofpbuf_pull(&b
, sizeof *ofm
);
1500 error
= ofputil_pull_ofp11_match(&b
, &fm
->match
, NULL
);
1505 error
= ofpacts_pull_openflow11_instructions(&b
, b
.size
, ofm
->table_id
,
1511 /* Translate the message. */
1512 fm
->priority
= ntohs(ofm
->priority
);
1513 if (ofm
->command
== OFPFC_ADD
) {
1514 fm
->cookie
= htonll(0);
1515 fm
->cookie_mask
= htonll(0);
1516 fm
->new_cookie
= ofm
->cookie
;
1518 fm
->cookie
= ofm
->cookie
;
1519 fm
->cookie_mask
= ofm
->cookie_mask
;
1520 fm
->new_cookie
= htonll(UINT64_MAX
);
1522 fm
->command
= ofm
->command
;
1523 fm
->table_id
= ofm
->table_id
;
1524 fm
->idle_timeout
= ntohs(ofm
->idle_timeout
);
1525 fm
->hard_timeout
= ntohs(ofm
->hard_timeout
);
1526 fm
->buffer_id
= ntohl(ofm
->buffer_id
);
1527 error
= ofputil_port_from_ofp11(ofm
->out_port
, &fm
->out_port
);
1531 if ((ofm
->command
== OFPFC_DELETE
1532 || ofm
->command
== OFPFC_DELETE_STRICT
)
1533 && ofm
->out_group
!= htonl(OFPG_ANY
)) {
1534 return OFPERR_OFPFMFC_UNKNOWN
;
1536 fm
->flags
= ntohs(ofm
->flags
);
1538 if (raw
== OFPRAW_OFPT10_FLOW_MOD
) {
1539 /* Standard OpenFlow 1.0 flow_mod. */
1540 const struct ofp10_flow_mod
*ofm
;
1543 /* Get the ofp10_flow_mod. */
1544 ofm
= ofpbuf_pull(&b
, sizeof *ofm
);
1546 /* Translate the rule. */
1547 ofputil_match_from_ofp10_match(&ofm
->match
, &fm
->match
);
1548 ofputil_normalize_match(&fm
->match
);
1550 /* Now get the actions. */
1551 error
= ofpacts_pull_openflow10(&b
, b
.size
, ofpacts
);
1556 /* OpenFlow 1.0 says that exact-match rules have to have the
1557 * highest possible priority. */
1558 fm
->priority
= (ofm
->match
.wildcards
& htonl(OFPFW10_ALL
)
1559 ? ntohs(ofm
->priority
)
1562 /* Translate the message. */
1563 command
= ntohs(ofm
->command
);
1564 fm
->cookie
= htonll(0);
1565 fm
->cookie_mask
= htonll(0);
1566 fm
->new_cookie
= ofm
->cookie
;
1567 fm
->idle_timeout
= ntohs(ofm
->idle_timeout
);
1568 fm
->hard_timeout
= ntohs(ofm
->hard_timeout
);
1569 fm
->buffer_id
= ntohl(ofm
->buffer_id
);
1570 fm
->out_port
= u16_to_ofp(ntohs(ofm
->out_port
));
1571 fm
->flags
= ntohs(ofm
->flags
);
1572 } else if (raw
== OFPRAW_NXT_FLOW_MOD
) {
1573 /* Nicira extended flow_mod. */
1574 const struct nx_flow_mod
*nfm
;
1577 /* Dissect the message. */
1578 nfm
= ofpbuf_pull(&b
, sizeof *nfm
);
1579 error
= nx_pull_match(&b
, ntohs(nfm
->match_len
),
1580 &fm
->match
, &fm
->cookie
, &fm
->cookie_mask
);
1584 error
= ofpacts_pull_openflow10(&b
, b
.size
, ofpacts
);
1589 /* Translate the message. */
1590 command
= ntohs(nfm
->command
);
1591 if ((command
& 0xff) == OFPFC_ADD
&& fm
->cookie_mask
) {
1592 /* Flow additions may only set a new cookie, not match an
1593 * existing cookie. */
1594 return OFPERR_NXBRC_NXM_INVALID
;
1596 fm
->priority
= ntohs(nfm
->priority
);
1597 fm
->new_cookie
= nfm
->cookie
;
1598 fm
->idle_timeout
= ntohs(nfm
->idle_timeout
);
1599 fm
->hard_timeout
= ntohs(nfm
->hard_timeout
);
1600 fm
->buffer_id
= ntohl(nfm
->buffer_id
);
1601 fm
->out_port
= u16_to_ofp(ntohs(nfm
->out_port
));
1602 fm
->flags
= ntohs(nfm
->flags
);
1607 if (fm
->flags
& OFPFF10_EMERG
) {
1608 /* We do not support the OpenFlow 1.0 emergency flow cache, which
1609 * is not required in OpenFlow 1.0.1 and removed from OpenFlow 1.1.
1611 * OpenFlow 1.0 specifies the error code to use when idle_timeout
1612 * or hard_timeout is nonzero. Otherwise, there is no good error
1613 * code, so just state that the flow table is full. */
1614 return (fm
->hard_timeout
|| fm
->idle_timeout
1615 ? OFPERR_OFPFMFC_BAD_EMERG_TIMEOUT
1616 : OFPERR_OFPFMFC_TABLE_FULL
);
1619 if (protocol
& OFPUTIL_P_TID
) {
1620 fm
->command
= command
& 0xff;
1621 fm
->table_id
= command
>> 8;
1623 fm
->command
= command
;
1624 fm
->table_id
= 0xff;
1628 fm
->ofpacts
= ofpacts
->data
;
1629 fm
->ofpacts_len
= ofpacts
->size
;
1635 ofputil_tid_command(const struct ofputil_flow_mod
*fm
,
1636 enum ofputil_protocol protocol
)
1638 return htons(protocol
& OFPUTIL_P_TID
1639 ? (fm
->command
& 0xff) | (fm
->table_id
<< 8)
1643 /* Converts 'fm' into an OFPT_FLOW_MOD or NXT_FLOW_MOD message according to
1644 * 'protocol' and returns the message. */
1646 ofputil_encode_flow_mod(const struct ofputil_flow_mod
*fm
,
1647 enum ofputil_protocol protocol
)
1652 case OFPUTIL_P_OF12_OXM
:
1653 case OFPUTIL_P_OF13_OXM
: {
1654 struct ofp11_flow_mod
*ofm
;
1656 msg
= ofpraw_alloc(OFPRAW_OFPT11_FLOW_MOD
,
1657 ofputil_protocol_to_ofp_version(protocol
),
1658 NXM_TYPICAL_LEN
+ fm
->ofpacts_len
);
1659 ofm
= ofpbuf_put_zeros(msg
, sizeof *ofm
);
1660 if (fm
->command
== OFPFC_ADD
) {
1661 ofm
->cookie
= fm
->new_cookie
;
1663 ofm
->cookie
= fm
->cookie
;
1665 ofm
->cookie_mask
= fm
->cookie_mask
;
1666 ofm
->table_id
= fm
->table_id
;
1667 ofm
->command
= fm
->command
;
1668 ofm
->idle_timeout
= htons(fm
->idle_timeout
);
1669 ofm
->hard_timeout
= htons(fm
->hard_timeout
);
1670 ofm
->priority
= htons(fm
->priority
);
1671 ofm
->buffer_id
= htonl(fm
->buffer_id
);
1672 ofm
->out_port
= ofputil_port_to_ofp11(fm
->out_port
);
1673 ofm
->out_group
= htonl(OFPG11_ANY
);
1674 ofm
->flags
= htons(fm
->flags
);
1675 oxm_put_match(msg
, &fm
->match
);
1676 ofpacts_put_openflow11_instructions(fm
->ofpacts
, fm
->ofpacts_len
, msg
);
1680 case OFPUTIL_P_OF10_STD
:
1681 case OFPUTIL_P_OF10_STD_TID
: {
1682 struct ofp10_flow_mod
*ofm
;
1684 msg
= ofpraw_alloc(OFPRAW_OFPT10_FLOW_MOD
, OFP10_VERSION
,
1686 ofm
= ofpbuf_put_zeros(msg
, sizeof *ofm
);
1687 ofputil_match_to_ofp10_match(&fm
->match
, &ofm
->match
);
1688 ofm
->cookie
= fm
->new_cookie
;
1689 ofm
->command
= ofputil_tid_command(fm
, protocol
);
1690 ofm
->idle_timeout
= htons(fm
->idle_timeout
);
1691 ofm
->hard_timeout
= htons(fm
->hard_timeout
);
1692 ofm
->priority
= htons(fm
->priority
);
1693 ofm
->buffer_id
= htonl(fm
->buffer_id
);
1694 ofm
->out_port
= htons(ofp_to_u16(fm
->out_port
));
1695 ofm
->flags
= htons(fm
->flags
);
1696 ofpacts_put_openflow10(fm
->ofpacts
, fm
->ofpacts_len
, msg
);
1700 case OFPUTIL_P_OF10_NXM
:
1701 case OFPUTIL_P_OF10_NXM_TID
: {
1702 struct nx_flow_mod
*nfm
;
1705 msg
= ofpraw_alloc(OFPRAW_NXT_FLOW_MOD
, OFP10_VERSION
,
1706 NXM_TYPICAL_LEN
+ fm
->ofpacts_len
);
1707 nfm
= ofpbuf_put_zeros(msg
, sizeof *nfm
);
1708 nfm
->command
= ofputil_tid_command(fm
, protocol
);
1709 nfm
->cookie
= fm
->new_cookie
;
1710 match_len
= nx_put_match(msg
, &fm
->match
, fm
->cookie
, fm
->cookie_mask
);
1712 nfm
->idle_timeout
= htons(fm
->idle_timeout
);
1713 nfm
->hard_timeout
= htons(fm
->hard_timeout
);
1714 nfm
->priority
= htons(fm
->priority
);
1715 nfm
->buffer_id
= htonl(fm
->buffer_id
);
1716 nfm
->out_port
= htons(ofp_to_u16(fm
->out_port
));
1717 nfm
->flags
= htons(fm
->flags
);
1718 nfm
->match_len
= htons(match_len
);
1719 ofpacts_put_openflow10(fm
->ofpacts
, fm
->ofpacts_len
, msg
);
1727 ofpmsg_update_length(msg
);
1731 /* Returns a bitmask with a 1-bit for each protocol that could be used to
1732 * send all of the 'n_fm's flow table modification requests in 'fms', and a
1733 * 0-bit for each protocol that is inadequate.
1735 * (The return value will have at least one 1-bit.) */
1736 enum ofputil_protocol
1737 ofputil_flow_mod_usable_protocols(const struct ofputil_flow_mod
*fms
,
1740 enum ofputil_protocol usable_protocols
;
1743 usable_protocols
= OFPUTIL_P_ANY
;
1744 for (i
= 0; i
< n_fms
; i
++) {
1745 const struct ofputil_flow_mod
*fm
= &fms
[i
];
1747 usable_protocols
&= ofputil_usable_protocols(&fm
->match
);
1748 if (fm
->table_id
!= 0xff) {
1749 usable_protocols
&= OFPUTIL_P_TID
;
1752 /* Matching of the cookie is only supported through NXM or OF1.1+. */
1753 if (fm
->cookie_mask
!= htonll(0)) {
1754 usable_protocols
&= OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1755 | OFPUTIL_P_OF13_OXM
;
1759 return usable_protocols
;
1763 ofputil_decode_ofpst10_flow_request(struct ofputil_flow_stats_request
*fsr
,
1764 const struct ofp10_flow_stats_request
*ofsr
,
1767 fsr
->aggregate
= aggregate
;
1768 ofputil_match_from_ofp10_match(&ofsr
->match
, &fsr
->match
);
1769 fsr
->out_port
= u16_to_ofp(ntohs(ofsr
->out_port
));
1770 fsr
->table_id
= ofsr
->table_id
;
1771 fsr
->cookie
= fsr
->cookie_mask
= htonll(0);
1777 ofputil_decode_ofpst11_flow_request(struct ofputil_flow_stats_request
*fsr
,
1778 struct ofpbuf
*b
, bool aggregate
)
1780 const struct ofp11_flow_stats_request
*ofsr
;
1783 ofsr
= ofpbuf_pull(b
, sizeof *ofsr
);
1784 fsr
->aggregate
= aggregate
;
1785 fsr
->table_id
= ofsr
->table_id
;
1786 error
= ofputil_port_from_ofp11(ofsr
->out_port
, &fsr
->out_port
);
1790 if (ofsr
->out_group
!= htonl(OFPG11_ANY
)) {
1791 return OFPERR_OFPFMFC_UNKNOWN
;
1793 fsr
->cookie
= ofsr
->cookie
;
1794 fsr
->cookie_mask
= ofsr
->cookie_mask
;
1795 error
= ofputil_pull_ofp11_match(b
, &fsr
->match
, NULL
);
1804 ofputil_decode_nxst_flow_request(struct ofputil_flow_stats_request
*fsr
,
1805 struct ofpbuf
*b
, bool aggregate
)
1807 const struct nx_flow_stats_request
*nfsr
;
1810 nfsr
= ofpbuf_pull(b
, sizeof *nfsr
);
1811 error
= nx_pull_match(b
, ntohs(nfsr
->match_len
), &fsr
->match
,
1812 &fsr
->cookie
, &fsr
->cookie_mask
);
1817 return OFPERR_OFPBRC_BAD_LEN
;
1820 fsr
->aggregate
= aggregate
;
1821 fsr
->out_port
= u16_to_ofp(ntohs(nfsr
->out_port
));
1822 fsr
->table_id
= nfsr
->table_id
;
1827 /* Converts an OFPST_FLOW, OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE
1828 * request 'oh', into an abstract flow_stats_request in 'fsr'. Returns 0 if
1829 * successful, otherwise an OpenFlow error code. */
1831 ofputil_decode_flow_stats_request(struct ofputil_flow_stats_request
*fsr
,
1832 const struct ofp_header
*oh
)
1837 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
1838 raw
= ofpraw_pull_assert(&b
);
1839 switch ((int) raw
) {
1840 case OFPRAW_OFPST10_FLOW_REQUEST
:
1841 return ofputil_decode_ofpst10_flow_request(fsr
, b
.data
, false);
1843 case OFPRAW_OFPST10_AGGREGATE_REQUEST
:
1844 return ofputil_decode_ofpst10_flow_request(fsr
, b
.data
, true);
1846 case OFPRAW_OFPST11_FLOW_REQUEST
:
1847 return ofputil_decode_ofpst11_flow_request(fsr
, &b
, false);
1849 case OFPRAW_OFPST11_AGGREGATE_REQUEST
:
1850 return ofputil_decode_ofpst11_flow_request(fsr
, &b
, true);
1852 case OFPRAW_NXST_FLOW_REQUEST
:
1853 return ofputil_decode_nxst_flow_request(fsr
, &b
, false);
1855 case OFPRAW_NXST_AGGREGATE_REQUEST
:
1856 return ofputil_decode_nxst_flow_request(fsr
, &b
, true);
1859 /* Hey, the caller lied. */
1864 /* Converts abstract flow_stats_request 'fsr' into an OFPST_FLOW,
1865 * OFPST_AGGREGATE, NXST_FLOW, or NXST_AGGREGATE request 'oh' according to
1866 * 'protocol', and returns the message. */
1868 ofputil_encode_flow_stats_request(const struct ofputil_flow_stats_request
*fsr
,
1869 enum ofputil_protocol protocol
)
1875 case OFPUTIL_P_OF12_OXM
:
1876 case OFPUTIL_P_OF13_OXM
: {
1877 struct ofp11_flow_stats_request
*ofsr
;
1879 raw
= (fsr
->aggregate
1880 ? OFPRAW_OFPST11_AGGREGATE_REQUEST
1881 : OFPRAW_OFPST11_FLOW_REQUEST
);
1882 msg
= ofpraw_alloc(raw
, ofputil_protocol_to_ofp_version(protocol
),
1884 ofsr
= ofpbuf_put_zeros(msg
, sizeof *ofsr
);
1885 ofsr
->table_id
= fsr
->table_id
;
1886 ofsr
->out_port
= ofputil_port_to_ofp11(fsr
->out_port
);
1887 ofsr
->out_group
= htonl(OFPG11_ANY
);
1888 ofsr
->cookie
= fsr
->cookie
;
1889 ofsr
->cookie_mask
= fsr
->cookie_mask
;
1890 oxm_put_match(msg
, &fsr
->match
);
1894 case OFPUTIL_P_OF10_STD
:
1895 case OFPUTIL_P_OF10_STD_TID
: {
1896 struct ofp10_flow_stats_request
*ofsr
;
1898 raw
= (fsr
->aggregate
1899 ? OFPRAW_OFPST10_AGGREGATE_REQUEST
1900 : OFPRAW_OFPST10_FLOW_REQUEST
);
1901 msg
= ofpraw_alloc(raw
, OFP10_VERSION
, 0);
1902 ofsr
= ofpbuf_put_zeros(msg
, sizeof *ofsr
);
1903 ofputil_match_to_ofp10_match(&fsr
->match
, &ofsr
->match
);
1904 ofsr
->table_id
= fsr
->table_id
;
1905 ofsr
->out_port
= htons(ofp_to_u16(fsr
->out_port
));
1909 case OFPUTIL_P_OF10_NXM
:
1910 case OFPUTIL_P_OF10_NXM_TID
: {
1911 struct nx_flow_stats_request
*nfsr
;
1914 raw
= (fsr
->aggregate
1915 ? OFPRAW_NXST_AGGREGATE_REQUEST
1916 : OFPRAW_NXST_FLOW_REQUEST
);
1917 msg
= ofpraw_alloc(raw
, OFP10_VERSION
, NXM_TYPICAL_LEN
);
1918 ofpbuf_put_zeros(msg
, sizeof *nfsr
);
1919 match_len
= nx_put_match(msg
, &fsr
->match
,
1920 fsr
->cookie
, fsr
->cookie_mask
);
1923 nfsr
->out_port
= htons(ofp_to_u16(fsr
->out_port
));
1924 nfsr
->match_len
= htons(match_len
);
1925 nfsr
->table_id
= fsr
->table_id
;
1936 /* Returns a bitmask with a 1-bit for each protocol that could be used to
1937 * accurately encode 'fsr', and a 0-bit for each protocol that is inadequate.
1939 * (The return value will have at least one 1-bit.) */
1940 enum ofputil_protocol
1941 ofputil_flow_stats_request_usable_protocols(
1942 const struct ofputil_flow_stats_request
*fsr
)
1944 enum ofputil_protocol usable_protocols
;
1946 usable_protocols
= ofputil_usable_protocols(&fsr
->match
);
1947 if (fsr
->cookie_mask
!= htonll(0)) {
1948 usable_protocols
&= OFPUTIL_P_OF10_NXM_ANY
| OFPUTIL_P_OF12_OXM
1949 | OFPUTIL_P_OF13_OXM
;
1951 return usable_protocols
;
1954 /* Converts an OFPST_FLOW or NXST_FLOW reply in 'msg' into an abstract
1955 * ofputil_flow_stats in 'fs'.
1957 * Multiple OFPST_FLOW or NXST_FLOW replies can be packed into a single
1958 * OpenFlow message. Calling this function multiple times for a single 'msg'
1959 * iterates through the replies. The caller must initially leave 'msg''s layer
1960 * pointers null and not modify them between calls.
1962 * Most switches don't send the values needed to populate fs->idle_age and
1963 * fs->hard_age, so those members will usually be set to 0. If the switch from
1964 * which 'msg' originated is known to implement NXT_FLOW_AGE, then pass
1965 * 'flow_age_extension' as true so that the contents of 'msg' determine the
1966 * 'idle_age' and 'hard_age' members in 'fs'.
1968 * Uses 'ofpacts' to store the abstract OFPACT_* version of the flow stats
1969 * reply's actions. The caller must initialize 'ofpacts' and retains ownership
1970 * of it. 'fs->ofpacts' will point into the 'ofpacts' buffer.
1972 * Returns 0 if successful, EOF if no replies were left in this 'msg',
1973 * otherwise a positive errno value. */
1975 ofputil_decode_flow_stats_reply(struct ofputil_flow_stats
*fs
,
1977 bool flow_age_extension
,
1978 struct ofpbuf
*ofpacts
)
1984 ? ofpraw_decode(&raw
, msg
->l2
)
1985 : ofpraw_pull(&raw
, msg
));
1992 } else if (raw
== OFPRAW_OFPST11_FLOW_REPLY
1993 || raw
== OFPRAW_OFPST13_FLOW_REPLY
) {
1994 const struct ofp11_flow_stats
*ofs
;
1996 uint16_t padded_match_len
;
1998 ofs
= ofpbuf_try_pull(msg
, sizeof *ofs
);
2000 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply has %zu leftover "
2001 "bytes at end", msg
->size
);
2005 length
= ntohs(ofs
->length
);
2006 if (length
< sizeof *ofs
) {
2007 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply claims invalid "
2008 "length %zu", length
);
2012 if (ofputil_pull_ofp11_match(msg
, &fs
->match
, &padded_match_len
)) {
2013 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply bad match");
2017 if (ofpacts_pull_openflow11_instructions(msg
, length
- sizeof *ofs
-
2019 ofs
->table_id
, ofpacts
)) {
2020 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply bad instructions");
2024 fs
->priority
= ntohs(ofs
->priority
);
2025 fs
->table_id
= ofs
->table_id
;
2026 fs
->duration_sec
= ntohl(ofs
->duration_sec
);
2027 fs
->duration_nsec
= ntohl(ofs
->duration_nsec
);
2028 fs
->idle_timeout
= ntohs(ofs
->idle_timeout
);
2029 fs
->hard_timeout
= ntohs(ofs
->hard_timeout
);
2030 fs
->flags
= (raw
== OFPRAW_OFPST13_FLOW_REPLY
) ? ntohs(ofs
->flags
) : 0;
2033 fs
->cookie
= ofs
->cookie
;
2034 fs
->packet_count
= ntohll(ofs
->packet_count
);
2035 fs
->byte_count
= ntohll(ofs
->byte_count
);
2036 } else if (raw
== OFPRAW_OFPST10_FLOW_REPLY
) {
2037 const struct ofp10_flow_stats
*ofs
;
2040 ofs
= ofpbuf_try_pull(msg
, sizeof *ofs
);
2042 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply has %zu leftover "
2043 "bytes at end", msg
->size
);
2047 length
= ntohs(ofs
->length
);
2048 if (length
< sizeof *ofs
) {
2049 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_FLOW reply claims invalid "
2050 "length %zu", length
);
2054 if (ofpacts_pull_openflow10(msg
, length
- sizeof *ofs
, ofpacts
)) {
2058 fs
->cookie
= get_32aligned_be64(&ofs
->cookie
);
2059 ofputil_match_from_ofp10_match(&ofs
->match
, &fs
->match
);
2060 fs
->priority
= ntohs(ofs
->priority
);
2061 fs
->table_id
= ofs
->table_id
;
2062 fs
->duration_sec
= ntohl(ofs
->duration_sec
);
2063 fs
->duration_nsec
= ntohl(ofs
->duration_nsec
);
2064 fs
->idle_timeout
= ntohs(ofs
->idle_timeout
);
2065 fs
->hard_timeout
= ntohs(ofs
->hard_timeout
);
2068 fs
->packet_count
= ntohll(get_32aligned_be64(&ofs
->packet_count
));
2069 fs
->byte_count
= ntohll(get_32aligned_be64(&ofs
->byte_count
));
2071 } else if (raw
== OFPRAW_NXST_FLOW_REPLY
) {
2072 const struct nx_flow_stats
*nfs
;
2073 size_t match_len
, actions_len
, length
;
2075 nfs
= ofpbuf_try_pull(msg
, sizeof *nfs
);
2077 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW reply has %zu leftover "
2078 "bytes at end", msg
->size
);
2082 length
= ntohs(nfs
->length
);
2083 match_len
= ntohs(nfs
->match_len
);
2084 if (length
< sizeof *nfs
+ ROUND_UP(match_len
, 8)) {
2085 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW reply with match_len=%zu "
2086 "claims invalid length %zu", match_len
, length
);
2089 if (nx_pull_match(msg
, match_len
, &fs
->match
, NULL
, NULL
)) {
2093 actions_len
= length
- sizeof *nfs
- ROUND_UP(match_len
, 8);
2094 if (ofpacts_pull_openflow10(msg
, actions_len
, ofpacts
)) {
2098 fs
->cookie
= nfs
->cookie
;
2099 fs
->table_id
= nfs
->table_id
;
2100 fs
->duration_sec
= ntohl(nfs
->duration_sec
);
2101 fs
->duration_nsec
= ntohl(nfs
->duration_nsec
);
2102 fs
->priority
= ntohs(nfs
->priority
);
2103 fs
->idle_timeout
= ntohs(nfs
->idle_timeout
);
2104 fs
->hard_timeout
= ntohs(nfs
->hard_timeout
);
2107 if (flow_age_extension
) {
2108 if (nfs
->idle_age
) {
2109 fs
->idle_age
= ntohs(nfs
->idle_age
) - 1;
2111 if (nfs
->hard_age
) {
2112 fs
->hard_age
= ntohs(nfs
->hard_age
) - 1;
2115 fs
->packet_count
= ntohll(nfs
->packet_count
);
2116 fs
->byte_count
= ntohll(nfs
->byte_count
);
2122 fs
->ofpacts
= ofpacts
->data
;
2123 fs
->ofpacts_len
= ofpacts
->size
;
2128 /* Returns 'count' unchanged except that UINT64_MAX becomes 0.
2130 * We use this in situations where OVS internally uses UINT64_MAX to mean
2131 * "value unknown" but OpenFlow 1.0 does not define any unknown value. */
2133 unknown_to_zero(uint64_t count
)
2135 return count
!= UINT64_MAX
? count
: 0;
2138 /* Appends an OFPST_FLOW or NXST_FLOW reply that contains the data in 'fs' to
2139 * those already present in the list of ofpbufs in 'replies'. 'replies' should
2140 * have been initialized with ofputil_start_stats_reply(). */
2142 ofputil_append_flow_stats_reply(const struct ofputil_flow_stats
*fs
,
2143 struct list
*replies
)
2145 struct ofpbuf
*reply
= ofpbuf_from_list(list_back(replies
));
2146 size_t start_ofs
= reply
->size
;
2149 ofpraw_decode_partial(&raw
, reply
->data
, reply
->size
);
2150 if (raw
== OFPRAW_OFPST11_FLOW_REPLY
|| raw
== OFPRAW_OFPST13_FLOW_REPLY
) {
2151 struct ofp11_flow_stats
*ofs
;
2153 ofpbuf_put_uninit(reply
, sizeof *ofs
);
2154 oxm_put_match(reply
, &fs
->match
);
2155 ofpacts_put_openflow11_instructions(fs
->ofpacts
, fs
->ofpacts_len
,
2158 ofs
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *ofs
);
2159 ofs
->length
= htons(reply
->size
- start_ofs
);
2160 ofs
->table_id
= fs
->table_id
;
2162 ofs
->duration_sec
= htonl(fs
->duration_sec
);
2163 ofs
->duration_nsec
= htonl(fs
->duration_nsec
);
2164 ofs
->priority
= htons(fs
->priority
);
2165 ofs
->idle_timeout
= htons(fs
->idle_timeout
);
2166 ofs
->hard_timeout
= htons(fs
->hard_timeout
);
2167 ofs
->flags
= (raw
== OFPRAW_OFPST13_FLOW_REPLY
) ? htons(fs
->flags
) : 0;
2168 memset(ofs
->pad2
, 0, sizeof ofs
->pad2
);
2169 ofs
->cookie
= fs
->cookie
;
2170 ofs
->packet_count
= htonll(unknown_to_zero(fs
->packet_count
));
2171 ofs
->byte_count
= htonll(unknown_to_zero(fs
->byte_count
));
2172 } else if (raw
== OFPRAW_OFPST10_FLOW_REPLY
) {
2173 struct ofp10_flow_stats
*ofs
;
2175 ofpbuf_put_uninit(reply
, sizeof *ofs
);
2176 ofpacts_put_openflow10(fs
->ofpacts
, fs
->ofpacts_len
, reply
);
2178 ofs
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *ofs
);
2179 ofs
->length
= htons(reply
->size
- start_ofs
);
2180 ofs
->table_id
= fs
->table_id
;
2182 ofputil_match_to_ofp10_match(&fs
->match
, &ofs
->match
);
2183 ofs
->duration_sec
= htonl(fs
->duration_sec
);
2184 ofs
->duration_nsec
= htonl(fs
->duration_nsec
);
2185 ofs
->priority
= htons(fs
->priority
);
2186 ofs
->idle_timeout
= htons(fs
->idle_timeout
);
2187 ofs
->hard_timeout
= htons(fs
->hard_timeout
);
2188 memset(ofs
->pad2
, 0, sizeof ofs
->pad2
);
2189 put_32aligned_be64(&ofs
->cookie
, fs
->cookie
);
2190 put_32aligned_be64(&ofs
->packet_count
,
2191 htonll(unknown_to_zero(fs
->packet_count
)));
2192 put_32aligned_be64(&ofs
->byte_count
,
2193 htonll(unknown_to_zero(fs
->byte_count
)));
2194 } else if (raw
== OFPRAW_NXST_FLOW_REPLY
) {
2195 struct nx_flow_stats
*nfs
;
2198 ofpbuf_put_uninit(reply
, sizeof *nfs
);
2199 match_len
= nx_put_match(reply
, &fs
->match
, 0, 0);
2200 ofpacts_put_openflow10(fs
->ofpacts
, fs
->ofpacts_len
, reply
);
2202 nfs
= ofpbuf_at_assert(reply
, start_ofs
, sizeof *nfs
);
2203 nfs
->length
= htons(reply
->size
- start_ofs
);
2204 nfs
->table_id
= fs
->table_id
;
2206 nfs
->duration_sec
= htonl(fs
->duration_sec
);
2207 nfs
->duration_nsec
= htonl(fs
->duration_nsec
);
2208 nfs
->priority
= htons(fs
->priority
);
2209 nfs
->idle_timeout
= htons(fs
->idle_timeout
);
2210 nfs
->hard_timeout
= htons(fs
->hard_timeout
);
2211 nfs
->idle_age
= htons(fs
->idle_age
< 0 ? 0
2212 : fs
->idle_age
< UINT16_MAX
? fs
->idle_age
+ 1
2214 nfs
->hard_age
= htons(fs
->hard_age
< 0 ? 0
2215 : fs
->hard_age
< UINT16_MAX
? fs
->hard_age
+ 1
2217 nfs
->match_len
= htons(match_len
);
2218 nfs
->cookie
= fs
->cookie
;
2219 nfs
->packet_count
= htonll(fs
->packet_count
);
2220 nfs
->byte_count
= htonll(fs
->byte_count
);
2225 ofpmp_postappend(replies
, start_ofs
);
2228 /* Converts abstract ofputil_aggregate_stats 'stats' into an OFPST_AGGREGATE or
2229 * NXST_AGGREGATE reply matching 'request', and returns the message. */
2231 ofputil_encode_aggregate_stats_reply(
2232 const struct ofputil_aggregate_stats
*stats
,
2233 const struct ofp_header
*request
)
2235 struct ofp_aggregate_stats_reply
*asr
;
2236 uint64_t packet_count
;
2237 uint64_t byte_count
;
2241 ofpraw_decode(&raw
, request
);
2242 if (raw
== OFPRAW_OFPST10_AGGREGATE_REQUEST
) {
2243 packet_count
= unknown_to_zero(stats
->packet_count
);
2244 byte_count
= unknown_to_zero(stats
->byte_count
);
2246 packet_count
= stats
->packet_count
;
2247 byte_count
= stats
->byte_count
;
2250 msg
= ofpraw_alloc_stats_reply(request
, 0);
2251 asr
= ofpbuf_put_zeros(msg
, sizeof *asr
);
2252 put_32aligned_be64(&asr
->packet_count
, htonll(packet_count
));
2253 put_32aligned_be64(&asr
->byte_count
, htonll(byte_count
));
2254 asr
->flow_count
= htonl(stats
->flow_count
);
2260 ofputil_decode_aggregate_stats_reply(struct ofputil_aggregate_stats
*stats
,
2261 const struct ofp_header
*reply
)
2263 struct ofp_aggregate_stats_reply
*asr
;
2266 ofpbuf_use_const(&msg
, reply
, ntohs(reply
->length
));
2267 ofpraw_pull_assert(&msg
);
2270 stats
->packet_count
= ntohll(get_32aligned_be64(&asr
->packet_count
));
2271 stats
->byte_count
= ntohll(get_32aligned_be64(&asr
->byte_count
));
2272 stats
->flow_count
= ntohl(asr
->flow_count
);
2277 /* Converts an OFPT_FLOW_REMOVED or NXT_FLOW_REMOVED message 'oh' into an
2278 * abstract ofputil_flow_removed in 'fr'. Returns 0 if successful, otherwise
2279 * an OpenFlow error code. */
2281 ofputil_decode_flow_removed(struct ofputil_flow_removed
*fr
,
2282 const struct ofp_header
*oh
)
2287 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
2288 raw
= ofpraw_pull_assert(&b
);
2289 if (raw
== OFPRAW_OFPT11_FLOW_REMOVED
) {
2290 const struct ofp12_flow_removed
*ofr
;
2293 ofr
= ofpbuf_pull(&b
, sizeof *ofr
);
2295 error
= ofputil_pull_ofp11_match(&b
, &fr
->match
, NULL
);
2300 fr
->priority
= ntohs(ofr
->priority
);
2301 fr
->cookie
= ofr
->cookie
;
2302 fr
->reason
= ofr
->reason
;
2303 fr
->table_id
= ofr
->table_id
;
2304 fr
->duration_sec
= ntohl(ofr
->duration_sec
);
2305 fr
->duration_nsec
= ntohl(ofr
->duration_nsec
);
2306 fr
->idle_timeout
= ntohs(ofr
->idle_timeout
);
2307 fr
->hard_timeout
= ntohs(ofr
->hard_timeout
);
2308 fr
->packet_count
= ntohll(ofr
->packet_count
);
2309 fr
->byte_count
= ntohll(ofr
->byte_count
);
2310 } else if (raw
== OFPRAW_OFPT10_FLOW_REMOVED
) {
2311 const struct ofp10_flow_removed
*ofr
;
2313 ofr
= ofpbuf_pull(&b
, sizeof *ofr
);
2315 ofputil_match_from_ofp10_match(&ofr
->match
, &fr
->match
);
2316 fr
->priority
= ntohs(ofr
->priority
);
2317 fr
->cookie
= ofr
->cookie
;
2318 fr
->reason
= ofr
->reason
;
2320 fr
->duration_sec
= ntohl(ofr
->duration_sec
);
2321 fr
->duration_nsec
= ntohl(ofr
->duration_nsec
);
2322 fr
->idle_timeout
= ntohs(ofr
->idle_timeout
);
2323 fr
->hard_timeout
= 0;
2324 fr
->packet_count
= ntohll(ofr
->packet_count
);
2325 fr
->byte_count
= ntohll(ofr
->byte_count
);
2326 } else if (raw
== OFPRAW_NXT_FLOW_REMOVED
) {
2327 struct nx_flow_removed
*nfr
;
2330 nfr
= ofpbuf_pull(&b
, sizeof *nfr
);
2331 error
= nx_pull_match(&b
, ntohs(nfr
->match_len
), &fr
->match
,
2337 return OFPERR_OFPBRC_BAD_LEN
;
2340 fr
->priority
= ntohs(nfr
->priority
);
2341 fr
->cookie
= nfr
->cookie
;
2342 fr
->reason
= nfr
->reason
;
2343 fr
->table_id
= nfr
->table_id
? nfr
->table_id
- 1 : 255;
2344 fr
->duration_sec
= ntohl(nfr
->duration_sec
);
2345 fr
->duration_nsec
= ntohl(nfr
->duration_nsec
);
2346 fr
->idle_timeout
= ntohs(nfr
->idle_timeout
);
2347 fr
->hard_timeout
= 0;
2348 fr
->packet_count
= ntohll(nfr
->packet_count
);
2349 fr
->byte_count
= ntohll(nfr
->byte_count
);
2357 /* Converts abstract ofputil_flow_removed 'fr' into an OFPT_FLOW_REMOVED or
2358 * NXT_FLOW_REMOVED message 'oh' according to 'protocol', and returns the
2361 ofputil_encode_flow_removed(const struct ofputil_flow_removed
*fr
,
2362 enum ofputil_protocol protocol
)
2367 case OFPUTIL_P_OF12_OXM
:
2368 case OFPUTIL_P_OF13_OXM
: {
2369 struct ofp12_flow_removed
*ofr
;
2371 msg
= ofpraw_alloc_xid(OFPRAW_OFPT11_FLOW_REMOVED
,
2372 ofputil_protocol_to_ofp_version(protocol
),
2373 htonl(0), NXM_TYPICAL_LEN
);
2374 ofr
= ofpbuf_put_zeros(msg
, sizeof *ofr
);
2375 ofr
->cookie
= fr
->cookie
;
2376 ofr
->priority
= htons(fr
->priority
);
2377 ofr
->reason
= fr
->reason
;
2378 ofr
->table_id
= fr
->table_id
;
2379 ofr
->duration_sec
= htonl(fr
->duration_sec
);
2380 ofr
->duration_nsec
= htonl(fr
->duration_nsec
);
2381 ofr
->idle_timeout
= htons(fr
->idle_timeout
);
2382 ofr
->hard_timeout
= htons(fr
->hard_timeout
);
2383 ofr
->packet_count
= htonll(fr
->packet_count
);
2384 ofr
->byte_count
= htonll(fr
->byte_count
);
2385 oxm_put_match(msg
, &fr
->match
);
2389 case OFPUTIL_P_OF10_STD
:
2390 case OFPUTIL_P_OF10_STD_TID
: {
2391 struct ofp10_flow_removed
*ofr
;
2393 msg
= ofpraw_alloc_xid(OFPRAW_OFPT10_FLOW_REMOVED
, OFP10_VERSION
,
2395 ofr
= ofpbuf_put_zeros(msg
, sizeof *ofr
);
2396 ofputil_match_to_ofp10_match(&fr
->match
, &ofr
->match
);
2397 ofr
->cookie
= fr
->cookie
;
2398 ofr
->priority
= htons(fr
->priority
);
2399 ofr
->reason
= fr
->reason
;
2400 ofr
->duration_sec
= htonl(fr
->duration_sec
);
2401 ofr
->duration_nsec
= htonl(fr
->duration_nsec
);
2402 ofr
->idle_timeout
= htons(fr
->idle_timeout
);
2403 ofr
->packet_count
= htonll(unknown_to_zero(fr
->packet_count
));
2404 ofr
->byte_count
= htonll(unknown_to_zero(fr
->byte_count
));
2408 case OFPUTIL_P_OF10_NXM
:
2409 case OFPUTIL_P_OF10_NXM_TID
: {
2410 struct nx_flow_removed
*nfr
;
2413 msg
= ofpraw_alloc_xid(OFPRAW_NXT_FLOW_REMOVED
, OFP10_VERSION
,
2414 htonl(0), NXM_TYPICAL_LEN
);
2415 nfr
= ofpbuf_put_zeros(msg
, sizeof *nfr
);
2416 match_len
= nx_put_match(msg
, &fr
->match
, 0, 0);
2419 nfr
->cookie
= fr
->cookie
;
2420 nfr
->priority
= htons(fr
->priority
);
2421 nfr
->reason
= fr
->reason
;
2422 nfr
->table_id
= fr
->table_id
+ 1;
2423 nfr
->duration_sec
= htonl(fr
->duration_sec
);
2424 nfr
->duration_nsec
= htonl(fr
->duration_nsec
);
2425 nfr
->idle_timeout
= htons(fr
->idle_timeout
);
2426 nfr
->match_len
= htons(match_len
);
2427 nfr
->packet_count
= htonll(fr
->packet_count
);
2428 nfr
->byte_count
= htonll(fr
->byte_count
);
2440 ofputil_decode_packet_in_finish(struct ofputil_packet_in
*pin
,
2441 struct match
*match
, struct ofpbuf
*b
)
2443 pin
->packet
= b
->data
;
2444 pin
->packet_len
= b
->size
;
2446 pin
->fmd
.in_port
= match
->flow
.in_port
.ofp_port
;
2447 pin
->fmd
.tun_id
= match
->flow
.tunnel
.tun_id
;
2448 pin
->fmd
.tun_src
= match
->flow
.tunnel
.ip_src
;
2449 pin
->fmd
.tun_dst
= match
->flow
.tunnel
.ip_dst
;
2450 pin
->fmd
.metadata
= match
->flow
.metadata
;
2451 memcpy(pin
->fmd
.regs
, match
->flow
.regs
, sizeof pin
->fmd
.regs
);
2455 ofputil_decode_packet_in(struct ofputil_packet_in
*pin
,
2456 const struct ofp_header
*oh
)
2461 memset(pin
, 0, sizeof *pin
);
2463 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
2464 raw
= ofpraw_pull_assert(&b
);
2465 if (raw
== OFPRAW_OFPT13_PACKET_IN
|| raw
== OFPRAW_OFPT12_PACKET_IN
) {
2466 const struct ofp13_packet_in
*opi
;
2469 size_t packet_in_size
;
2471 if (raw
== OFPRAW_OFPT12_PACKET_IN
) {
2472 packet_in_size
= sizeof (struct ofp12_packet_in
);
2474 packet_in_size
= sizeof (struct ofp13_packet_in
);
2477 opi
= ofpbuf_pull(&b
, packet_in_size
);
2478 error
= oxm_pull_match_loose(&b
, &match
);
2483 if (!ofpbuf_try_pull(&b
, 2)) {
2484 return OFPERR_OFPBRC_BAD_LEN
;
2487 pin
->reason
= opi
->pi
.reason
;
2488 pin
->table_id
= opi
->pi
.table_id
;
2489 pin
->buffer_id
= ntohl(opi
->pi
.buffer_id
);
2490 pin
->total_len
= ntohs(opi
->pi
.total_len
);
2492 if (raw
== OFPRAW_OFPT13_PACKET_IN
) {
2493 pin
->cookie
= opi
->cookie
;
2496 ofputil_decode_packet_in_finish(pin
, &match
, &b
);
2497 } else if (raw
== OFPRAW_OFPT10_PACKET_IN
) {
2498 const struct ofp10_packet_in
*opi
;
2500 opi
= ofpbuf_pull(&b
, offsetof(struct ofp10_packet_in
, data
));
2502 pin
->packet
= opi
->data
;
2503 pin
->packet_len
= b
.size
;
2505 pin
->fmd
.in_port
= u16_to_ofp(ntohs(opi
->in_port
));
2506 pin
->reason
= opi
->reason
;
2507 pin
->buffer_id
= ntohl(opi
->buffer_id
);
2508 pin
->total_len
= ntohs(opi
->total_len
);
2509 } else if (raw
== OFPRAW_NXT_PACKET_IN
) {
2510 const struct nx_packet_in
*npi
;
2514 npi
= ofpbuf_pull(&b
, sizeof *npi
);
2515 error
= nx_pull_match_loose(&b
, ntohs(npi
->match_len
), &match
, NULL
,
2521 if (!ofpbuf_try_pull(&b
, 2)) {
2522 return OFPERR_OFPBRC_BAD_LEN
;
2525 pin
->reason
= npi
->reason
;
2526 pin
->table_id
= npi
->table_id
;
2527 pin
->cookie
= npi
->cookie
;
2529 pin
->buffer_id
= ntohl(npi
->buffer_id
);
2530 pin
->total_len
= ntohs(npi
->total_len
);
2532 ofputil_decode_packet_in_finish(pin
, &match
, &b
);
2541 ofputil_packet_in_to_match(const struct ofputil_packet_in
*pin
,
2542 struct match
*match
)
2546 match_init_catchall(match
);
2547 if (pin
->fmd
.tun_id
!= htonll(0)) {
2548 match_set_tun_id(match
, pin
->fmd
.tun_id
);
2550 if (pin
->fmd
.tun_src
!= htonl(0)) {
2551 match_set_tun_src(match
, pin
->fmd
.tun_src
);
2553 if (pin
->fmd
.tun_dst
!= htonl(0)) {
2554 match_set_tun_dst(match
, pin
->fmd
.tun_dst
);
2556 if (pin
->fmd
.metadata
!= htonll(0)) {
2557 match_set_metadata(match
, pin
->fmd
.metadata
);
2560 for (i
= 0; i
< FLOW_N_REGS
; i
++) {
2561 if (pin
->fmd
.regs
[i
]) {
2562 match_set_reg(match
, i
, pin
->fmd
.regs
[i
]);
2566 match_set_in_port(match
, pin
->fmd
.in_port
);
2569 /* Converts abstract ofputil_packet_in 'pin' into a PACKET_IN message
2570 * in the format specified by 'packet_in_format'. */
2572 ofputil_encode_packet_in(const struct ofputil_packet_in
*pin
,
2573 enum ofputil_protocol protocol
,
2574 enum nx_packet_in_format packet_in_format
)
2576 size_t send_len
= MIN(pin
->send_len
, pin
->packet_len
);
2577 struct ofpbuf
*packet
;
2579 /* Add OFPT_PACKET_IN. */
2580 if (protocol
== OFPUTIL_P_OF13_OXM
|| protocol
== OFPUTIL_P_OF12_OXM
) {
2581 struct ofp13_packet_in
*opi
;
2583 enum ofpraw packet_in_raw
;
2584 enum ofp_version packet_in_version
;
2585 size_t packet_in_size
;
2587 if (protocol
== OFPUTIL_P_OF12_OXM
) {
2588 packet_in_raw
= OFPRAW_OFPT12_PACKET_IN
;
2589 packet_in_version
= OFP12_VERSION
;
2590 packet_in_size
= sizeof (struct ofp12_packet_in
);
2592 packet_in_raw
= OFPRAW_OFPT13_PACKET_IN
;
2593 packet_in_version
= OFP13_VERSION
;
2594 packet_in_size
= sizeof (struct ofp13_packet_in
);
2597 ofputil_packet_in_to_match(pin
, &match
);
2599 /* The final argument is just an estimate of the space required. */
2600 packet
= ofpraw_alloc_xid(packet_in_raw
, packet_in_version
,
2601 htonl(0), (sizeof(struct flow_metadata
) * 2
2603 ofpbuf_put_zeros(packet
, packet_in_size
);
2604 oxm_put_match(packet
, &match
);
2605 ofpbuf_put_zeros(packet
, 2);
2606 ofpbuf_put(packet
, pin
->packet
, send_len
);
2609 opi
->pi
.buffer_id
= htonl(pin
->buffer_id
);
2610 opi
->pi
.total_len
= htons(pin
->total_len
);
2611 opi
->pi
.reason
= pin
->reason
;
2612 opi
->pi
.table_id
= pin
->table_id
;
2613 if (protocol
== OFPUTIL_P_OF13_OXM
) {
2614 opi
->cookie
= pin
->cookie
;
2616 } else if (packet_in_format
== NXPIF_OPENFLOW10
) {
2617 struct ofp10_packet_in
*opi
;
2619 packet
= ofpraw_alloc_xid(OFPRAW_OFPT10_PACKET_IN
, OFP10_VERSION
,
2620 htonl(0), send_len
);
2621 opi
= ofpbuf_put_zeros(packet
, offsetof(struct ofp10_packet_in
, data
));
2622 opi
->total_len
= htons(pin
->total_len
);
2623 opi
->in_port
= htons(ofp_to_u16(pin
->fmd
.in_port
));
2624 opi
->reason
= pin
->reason
;
2625 opi
->buffer_id
= htonl(pin
->buffer_id
);
2627 ofpbuf_put(packet
, pin
->packet
, send_len
);
2628 } else if (packet_in_format
== NXPIF_NXM
) {
2629 struct nx_packet_in
*npi
;
2633 ofputil_packet_in_to_match(pin
, &match
);
2635 /* The final argument is just an estimate of the space required. */
2636 packet
= ofpraw_alloc_xid(OFPRAW_NXT_PACKET_IN
, OFP10_VERSION
,
2637 htonl(0), (sizeof(struct flow_metadata
) * 2
2639 ofpbuf_put_zeros(packet
, sizeof *npi
);
2640 match_len
= nx_put_match(packet
, &match
, 0, 0);
2641 ofpbuf_put_zeros(packet
, 2);
2642 ofpbuf_put(packet
, pin
->packet
, send_len
);
2645 npi
->buffer_id
= htonl(pin
->buffer_id
);
2646 npi
->total_len
= htons(pin
->total_len
);
2647 npi
->reason
= pin
->reason
;
2648 npi
->table_id
= pin
->table_id
;
2649 npi
->cookie
= pin
->cookie
;
2650 npi
->match_len
= htons(match_len
);
2654 ofpmsg_update_length(packet
);
2659 /* Returns a string form of 'reason'. The return value is either a statically
2660 * allocated constant string or the 'bufsize'-byte buffer 'reasonbuf'.
2661 * 'bufsize' should be at least OFPUTIL_PACKET_IN_REASON_BUFSIZE. */
2663 ofputil_packet_in_reason_to_string(enum ofp_packet_in_reason reason
,
2664 char *reasonbuf
, size_t bufsize
)
2671 case OFPR_INVALID_TTL
:
2672 return "invalid_ttl";
2674 case OFPR_N_REASONS
:
2676 snprintf(reasonbuf
, bufsize
, "%d", (int) reason
);
2682 ofputil_packet_in_reason_from_string(const char *s
,
2683 enum ofp_packet_in_reason
*reason
)
2687 for (i
= 0; i
< OFPR_N_REASONS
; i
++) {
2688 char reasonbuf
[OFPUTIL_PACKET_IN_REASON_BUFSIZE
];
2689 const char *reason_s
;
2691 reason_s
= ofputil_packet_in_reason_to_string(i
, reasonbuf
,
2693 if (!strcasecmp(s
, reason_s
)) {
2701 /* Converts an OFPT_PACKET_OUT in 'opo' into an abstract ofputil_packet_out in
2704 * Uses 'ofpacts' to store the abstract OFPACT_* version of the packet out
2705 * message's actions. The caller must initialize 'ofpacts' and retains
2706 * ownership of it. 'po->ofpacts' will point into the 'ofpacts' buffer.
2708 * Returns 0 if successful, otherwise an OFPERR_* value. */
2710 ofputil_decode_packet_out(struct ofputil_packet_out
*po
,
2711 const struct ofp_header
*oh
,
2712 struct ofpbuf
*ofpacts
)
2717 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
2718 raw
= ofpraw_pull_assert(&b
);
2720 if (raw
== OFPRAW_OFPT11_PACKET_OUT
) {
2722 const struct ofp11_packet_out
*opo
= ofpbuf_pull(&b
, sizeof *opo
);
2724 po
->buffer_id
= ntohl(opo
->buffer_id
);
2725 error
= ofputil_port_from_ofp11(opo
->in_port
, &po
->in_port
);
2730 error
= ofpacts_pull_openflow11_actions(&b
, ntohs(opo
->actions_len
),
2735 } else if (raw
== OFPRAW_OFPT10_PACKET_OUT
) {
2737 const struct ofp10_packet_out
*opo
= ofpbuf_pull(&b
, sizeof *opo
);
2739 po
->buffer_id
= ntohl(opo
->buffer_id
);
2740 po
->in_port
= u16_to_ofp(ntohs(opo
->in_port
));
2742 error
= ofpacts_pull_openflow10(&b
, ntohs(opo
->actions_len
), ofpacts
);
2750 if (ofp_to_u16(po
->in_port
) >= ofp_to_u16(OFPP_MAX
)
2751 && po
->in_port
!= OFPP_LOCAL
2752 && po
->in_port
!= OFPP_NONE
&& po
->in_port
!= OFPP_CONTROLLER
) {
2753 VLOG_WARN_RL(&bad_ofmsg_rl
, "packet-out has bad input port %#"PRIx16
,
2755 return OFPERR_OFPBRC_BAD_PORT
;
2758 po
->ofpacts
= ofpacts
->data
;
2759 po
->ofpacts_len
= ofpacts
->size
;
2761 if (po
->buffer_id
== UINT32_MAX
) {
2762 po
->packet
= b
.data
;
2763 po
->packet_len
= b
.size
;
2772 /* ofputil_phy_port */
2774 /* NETDEV_F_* to and from OFPPF_* and OFPPF10_*. */
2775 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD
== OFPPF_10MB_HD
); /* bit 0 */
2776 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD
== OFPPF_10MB_FD
); /* bit 1 */
2777 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD
== OFPPF_100MB_HD
); /* bit 2 */
2778 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD
== OFPPF_100MB_FD
); /* bit 3 */
2779 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD
== OFPPF_1GB_HD
); /* bit 4 */
2780 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD
== OFPPF_1GB_FD
); /* bit 5 */
2781 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD
== OFPPF_10GB_FD
); /* bit 6 */
2783 /* NETDEV_F_ bits 11...15 are OFPPF10_ bits 7...11: */
2784 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER
== (OFPPF10_COPPER
<< 4));
2785 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER
== (OFPPF10_FIBER
<< 4));
2786 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG
== (OFPPF10_AUTONEG
<< 4));
2787 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE
== (OFPPF10_PAUSE
<< 4));
2788 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM
== (OFPPF10_PAUSE_ASYM
<< 4));
2790 static enum netdev_features
2791 netdev_port_features_from_ofp10(ovs_be32 ofp10_
)
2793 uint32_t ofp10
= ntohl(ofp10_
);
2794 return (ofp10
& 0x7f) | ((ofp10
& 0xf80) << 4);
2798 netdev_port_features_to_ofp10(enum netdev_features features
)
2800 return htonl((features
& 0x7f) | ((features
& 0xf800) >> 4));
2803 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_HD
== OFPPF_10MB_HD
); /* bit 0 */
2804 BUILD_ASSERT_DECL((int) NETDEV_F_10MB_FD
== OFPPF_10MB_FD
); /* bit 1 */
2805 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_HD
== OFPPF_100MB_HD
); /* bit 2 */
2806 BUILD_ASSERT_DECL((int) NETDEV_F_100MB_FD
== OFPPF_100MB_FD
); /* bit 3 */
2807 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_HD
== OFPPF_1GB_HD
); /* bit 4 */
2808 BUILD_ASSERT_DECL((int) NETDEV_F_1GB_FD
== OFPPF_1GB_FD
); /* bit 5 */
2809 BUILD_ASSERT_DECL((int) NETDEV_F_10GB_FD
== OFPPF_10GB_FD
); /* bit 6 */
2810 BUILD_ASSERT_DECL((int) NETDEV_F_40GB_FD
== OFPPF11_40GB_FD
); /* bit 7 */
2811 BUILD_ASSERT_DECL((int) NETDEV_F_100GB_FD
== OFPPF11_100GB_FD
); /* bit 8 */
2812 BUILD_ASSERT_DECL((int) NETDEV_F_1TB_FD
== OFPPF11_1TB_FD
); /* bit 9 */
2813 BUILD_ASSERT_DECL((int) NETDEV_F_OTHER
== OFPPF11_OTHER
); /* bit 10 */
2814 BUILD_ASSERT_DECL((int) NETDEV_F_COPPER
== OFPPF11_COPPER
); /* bit 11 */
2815 BUILD_ASSERT_DECL((int) NETDEV_F_FIBER
== OFPPF11_FIBER
); /* bit 12 */
2816 BUILD_ASSERT_DECL((int) NETDEV_F_AUTONEG
== OFPPF11_AUTONEG
); /* bit 13 */
2817 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE
== OFPPF11_PAUSE
); /* bit 14 */
2818 BUILD_ASSERT_DECL((int) NETDEV_F_PAUSE_ASYM
== OFPPF11_PAUSE_ASYM
);/* bit 15 */
2820 static enum netdev_features
2821 netdev_port_features_from_ofp11(ovs_be32 ofp11
)
2823 return ntohl(ofp11
) & 0xffff;
2827 netdev_port_features_to_ofp11(enum netdev_features features
)
2829 return htonl(features
& 0xffff);
2833 ofputil_decode_ofp10_phy_port(struct ofputil_phy_port
*pp
,
2834 const struct ofp10_phy_port
*opp
)
2836 memset(pp
, 0, sizeof *pp
);
2838 pp
->port_no
= u16_to_ofp(ntohs(opp
->port_no
));
2839 memcpy(pp
->hw_addr
, opp
->hw_addr
, OFP_ETH_ALEN
);
2840 ovs_strlcpy(pp
->name
, opp
->name
, OFP_MAX_PORT_NAME_LEN
);
2842 pp
->config
= ntohl(opp
->config
) & OFPPC10_ALL
;
2843 pp
->state
= ntohl(opp
->state
) & OFPPS10_ALL
;
2845 pp
->curr
= netdev_port_features_from_ofp10(opp
->curr
);
2846 pp
->advertised
= netdev_port_features_from_ofp10(opp
->advertised
);
2847 pp
->supported
= netdev_port_features_from_ofp10(opp
->supported
);
2848 pp
->peer
= netdev_port_features_from_ofp10(opp
->peer
);
2850 pp
->curr_speed
= netdev_features_to_bps(pp
->curr
, 0) / 1000;
2851 pp
->max_speed
= netdev_features_to_bps(pp
->supported
, 0) / 1000;
2857 ofputil_decode_ofp11_port(struct ofputil_phy_port
*pp
,
2858 const struct ofp11_port
*op
)
2862 memset(pp
, 0, sizeof *pp
);
2864 error
= ofputil_port_from_ofp11(op
->port_no
, &pp
->port_no
);
2868 memcpy(pp
->hw_addr
, op
->hw_addr
, OFP_ETH_ALEN
);
2869 ovs_strlcpy(pp
->name
, op
->name
, OFP_MAX_PORT_NAME_LEN
);
2871 pp
->config
= ntohl(op
->config
) & OFPPC11_ALL
;
2872 pp
->state
= ntohl(op
->state
) & OFPPC11_ALL
;
2874 pp
->curr
= netdev_port_features_from_ofp11(op
->curr
);
2875 pp
->advertised
= netdev_port_features_from_ofp11(op
->advertised
);
2876 pp
->supported
= netdev_port_features_from_ofp11(op
->supported
);
2877 pp
->peer
= netdev_port_features_from_ofp11(op
->peer
);
2879 pp
->curr_speed
= ntohl(op
->curr_speed
);
2880 pp
->max_speed
= ntohl(op
->max_speed
);
2886 ofputil_get_phy_port_size(enum ofp_version ofp_version
)
2888 switch (ofp_version
) {
2890 return sizeof(struct ofp10_phy_port
);
2894 return sizeof(struct ofp11_port
);
2901 ofputil_encode_ofp10_phy_port(const struct ofputil_phy_port
*pp
,
2902 struct ofp10_phy_port
*opp
)
2904 memset(opp
, 0, sizeof *opp
);
2906 opp
->port_no
= htons(ofp_to_u16(pp
->port_no
));
2907 memcpy(opp
->hw_addr
, pp
->hw_addr
, ETH_ADDR_LEN
);
2908 ovs_strlcpy(opp
->name
, pp
->name
, OFP_MAX_PORT_NAME_LEN
);
2910 opp
->config
= htonl(pp
->config
& OFPPC10_ALL
);
2911 opp
->state
= htonl(pp
->state
& OFPPS10_ALL
);
2913 opp
->curr
= netdev_port_features_to_ofp10(pp
->curr
);
2914 opp
->advertised
= netdev_port_features_to_ofp10(pp
->advertised
);
2915 opp
->supported
= netdev_port_features_to_ofp10(pp
->supported
);
2916 opp
->peer
= netdev_port_features_to_ofp10(pp
->peer
);
2920 ofputil_encode_ofp11_port(const struct ofputil_phy_port
*pp
,
2921 struct ofp11_port
*op
)
2923 memset(op
, 0, sizeof *op
);
2925 op
->port_no
= ofputil_port_to_ofp11(pp
->port_no
);
2926 memcpy(op
->hw_addr
, pp
->hw_addr
, ETH_ADDR_LEN
);
2927 ovs_strlcpy(op
->name
, pp
->name
, OFP_MAX_PORT_NAME_LEN
);
2929 op
->config
= htonl(pp
->config
& OFPPC11_ALL
);
2930 op
->state
= htonl(pp
->state
& OFPPS11_ALL
);
2932 op
->curr
= netdev_port_features_to_ofp11(pp
->curr
);
2933 op
->advertised
= netdev_port_features_to_ofp11(pp
->advertised
);
2934 op
->supported
= netdev_port_features_to_ofp11(pp
->supported
);
2935 op
->peer
= netdev_port_features_to_ofp11(pp
->peer
);
2937 op
->curr_speed
= htonl(pp
->curr_speed
);
2938 op
->max_speed
= htonl(pp
->max_speed
);
2942 ofputil_put_phy_port(enum ofp_version ofp_version
,
2943 const struct ofputil_phy_port
*pp
, struct ofpbuf
*b
)
2945 switch (ofp_version
) {
2946 case OFP10_VERSION
: {
2947 struct ofp10_phy_port
*opp
;
2948 if (b
->size
+ sizeof *opp
<= UINT16_MAX
) {
2949 opp
= ofpbuf_put_uninit(b
, sizeof *opp
);
2950 ofputil_encode_ofp10_phy_port(pp
, opp
);
2957 case OFP13_VERSION
: {
2958 struct ofp11_port
*op
;
2959 if (b
->size
+ sizeof *op
<= UINT16_MAX
) {
2960 op
= ofpbuf_put_uninit(b
, sizeof *op
);
2961 ofputil_encode_ofp11_port(pp
, op
);
2972 ofputil_append_port_desc_stats_reply(enum ofp_version ofp_version
,
2973 const struct ofputil_phy_port
*pp
,
2974 struct list
*replies
)
2976 switch (ofp_version
) {
2977 case OFP10_VERSION
: {
2978 struct ofp10_phy_port
*opp
;
2980 opp
= ofpmp_append(replies
, sizeof *opp
);
2981 ofputil_encode_ofp10_phy_port(pp
, opp
);
2987 case OFP13_VERSION
: {
2988 struct ofp11_port
*op
;
2990 op
= ofpmp_append(replies
, sizeof *op
);
2991 ofputil_encode_ofp11_port(pp
, op
);
3000 /* ofputil_switch_features */
3002 #define OFPC_COMMON (OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \
3003 OFPC_IP_REASM | OFPC_QUEUE_STATS)
3004 BUILD_ASSERT_DECL((int) OFPUTIL_C_FLOW_STATS
== OFPC_FLOW_STATS
);
3005 BUILD_ASSERT_DECL((int) OFPUTIL_C_TABLE_STATS
== OFPC_TABLE_STATS
);
3006 BUILD_ASSERT_DECL((int) OFPUTIL_C_PORT_STATS
== OFPC_PORT_STATS
);
3007 BUILD_ASSERT_DECL((int) OFPUTIL_C_IP_REASM
== OFPC_IP_REASM
);
3008 BUILD_ASSERT_DECL((int) OFPUTIL_C_QUEUE_STATS
== OFPC_QUEUE_STATS
);
3009 BUILD_ASSERT_DECL((int) OFPUTIL_C_ARP_MATCH_IP
== OFPC_ARP_MATCH_IP
);
3011 struct ofputil_action_bit_translation
{
3012 enum ofputil_action_bitmap ofputil_bit
;
3016 static const struct ofputil_action_bit_translation of10_action_bits
[] = {
3017 { OFPUTIL_A_OUTPUT
, OFPAT10_OUTPUT
},
3018 { OFPUTIL_A_SET_VLAN_VID
, OFPAT10_SET_VLAN_VID
},
3019 { OFPUTIL_A_SET_VLAN_PCP
, OFPAT10_SET_VLAN_PCP
},
3020 { OFPUTIL_A_STRIP_VLAN
, OFPAT10_STRIP_VLAN
},
3021 { OFPUTIL_A_SET_DL_SRC
, OFPAT10_SET_DL_SRC
},
3022 { OFPUTIL_A_SET_DL_DST
, OFPAT10_SET_DL_DST
},
3023 { OFPUTIL_A_SET_NW_SRC
, OFPAT10_SET_NW_SRC
},
3024 { OFPUTIL_A_SET_NW_DST
, OFPAT10_SET_NW_DST
},
3025 { OFPUTIL_A_SET_NW_TOS
, OFPAT10_SET_NW_TOS
},
3026 { OFPUTIL_A_SET_TP_SRC
, OFPAT10_SET_TP_SRC
},
3027 { OFPUTIL_A_SET_TP_DST
, OFPAT10_SET_TP_DST
},
3028 { OFPUTIL_A_ENQUEUE
, OFPAT10_ENQUEUE
},
3032 static enum ofputil_action_bitmap
3033 decode_action_bits(ovs_be32 of_actions
,
3034 const struct ofputil_action_bit_translation
*x
)
3036 enum ofputil_action_bitmap ofputil_actions
;
3038 ofputil_actions
= 0;
3039 for (; x
->ofputil_bit
; x
++) {
3040 if (of_actions
& htonl(1u << x
->of_bit
)) {
3041 ofputil_actions
|= x
->ofputil_bit
;
3044 return ofputil_actions
;
3048 ofputil_capabilities_mask(enum ofp_version ofp_version
)
3050 /* Handle capabilities whose bit is unique for all Open Flow versions */
3051 switch (ofp_version
) {
3054 return OFPC_COMMON
| OFPC_ARP_MATCH_IP
;
3057 return OFPC_COMMON
| OFPC12_PORT_BLOCKED
;
3059 /* Caller needs to check osf->header.version itself */
3064 /* Decodes an OpenFlow 1.0 or 1.1 "switch_features" structure 'osf' into an
3065 * abstract representation in '*features'. Initializes '*b' to iterate over
3066 * the OpenFlow port structures following 'osf' with later calls to
3067 * ofputil_pull_phy_port(). Returns 0 if successful, otherwise an
3068 * OFPERR_* value. */
3070 ofputil_decode_switch_features(const struct ofp_header
*oh
,
3071 struct ofputil_switch_features
*features
,
3074 const struct ofp_switch_features
*osf
;
3077 ofpbuf_use_const(b
, oh
, ntohs(oh
->length
));
3078 raw
= ofpraw_pull_assert(b
);
3080 osf
= ofpbuf_pull(b
, sizeof *osf
);
3081 features
->datapath_id
= ntohll(osf
->datapath_id
);
3082 features
->n_buffers
= ntohl(osf
->n_buffers
);
3083 features
->n_tables
= osf
->n_tables
;
3084 features
->auxiliary_id
= 0;
3086 features
->capabilities
= ntohl(osf
->capabilities
) &
3087 ofputil_capabilities_mask(oh
->version
);
3089 if (b
->size
% ofputil_get_phy_port_size(oh
->version
)) {
3090 return OFPERR_OFPBRC_BAD_LEN
;
3093 if (raw
== OFPRAW_OFPT10_FEATURES_REPLY
) {
3094 if (osf
->capabilities
& htonl(OFPC10_STP
)) {
3095 features
->capabilities
|= OFPUTIL_C_STP
;
3097 features
->actions
= decode_action_bits(osf
->actions
, of10_action_bits
);
3098 } else if (raw
== OFPRAW_OFPT11_FEATURES_REPLY
3099 || raw
== OFPRAW_OFPT13_FEATURES_REPLY
) {
3100 if (osf
->capabilities
& htonl(OFPC11_GROUP_STATS
)) {
3101 features
->capabilities
|= OFPUTIL_C_GROUP_STATS
;
3103 features
->actions
= 0;
3104 if (raw
== OFPRAW_OFPT13_FEATURES_REPLY
) {
3105 features
->auxiliary_id
= osf
->auxiliary_id
;
3108 return OFPERR_OFPBRC_BAD_VERSION
;
3114 /* Returns true if the maximum number of ports are in 'oh'. */
3116 max_ports_in_features(const struct ofp_header
*oh
)
3118 size_t pp_size
= ofputil_get_phy_port_size(oh
->version
);
3119 return ntohs(oh
->length
) + pp_size
> UINT16_MAX
;
3122 /* Given a buffer 'b' that contains a Features Reply message, checks if
3123 * it contains the maximum number of ports that will fit. If so, it
3124 * returns true and removes the ports from the message. The caller
3125 * should then send an OFPST_PORT_DESC stats request to get the ports,
3126 * since the switch may have more ports than could be represented in the
3127 * Features Reply. Otherwise, returns false.
3130 ofputil_switch_features_ports_trunc(struct ofpbuf
*b
)
3132 struct ofp_header
*oh
= b
->data
;
3134 if (max_ports_in_features(oh
)) {
3135 /* Remove all the ports. */
3136 b
->size
= (sizeof(struct ofp_header
)
3137 + sizeof(struct ofp_switch_features
));
3138 ofpmsg_update_length(b
);
3147 encode_action_bits(enum ofputil_action_bitmap ofputil_actions
,
3148 const struct ofputil_action_bit_translation
*x
)
3150 uint32_t of_actions
;
3153 for (; x
->ofputil_bit
; x
++) {
3154 if (ofputil_actions
& x
->ofputil_bit
) {
3155 of_actions
|= 1 << x
->of_bit
;
3158 return htonl(of_actions
);
3161 /* Returns a buffer owned by the caller that encodes 'features' in the format
3162 * required by 'protocol' with the given 'xid'. The caller should append port
3163 * information to the buffer with subsequent calls to
3164 * ofputil_put_switch_features_port(). */
3166 ofputil_encode_switch_features(const struct ofputil_switch_features
*features
,
3167 enum ofputil_protocol protocol
, ovs_be32 xid
)
3169 struct ofp_switch_features
*osf
;
3171 enum ofp_version version
;
3174 version
= ofputil_protocol_to_ofp_version(protocol
);
3177 raw
= OFPRAW_OFPT10_FEATURES_REPLY
;
3181 raw
= OFPRAW_OFPT11_FEATURES_REPLY
;
3184 raw
= OFPRAW_OFPT13_FEATURES_REPLY
;
3189 b
= ofpraw_alloc_xid(raw
, version
, xid
, 0);
3190 osf
= ofpbuf_put_zeros(b
, sizeof *osf
);
3191 osf
->datapath_id
= htonll(features
->datapath_id
);
3192 osf
->n_buffers
= htonl(features
->n_buffers
);
3193 osf
->n_tables
= features
->n_tables
;
3195 osf
->capabilities
= htonl(features
->capabilities
& OFPC_COMMON
);
3196 osf
->capabilities
= htonl(features
->capabilities
&
3197 ofputil_capabilities_mask(version
));
3200 if (features
->capabilities
& OFPUTIL_C_STP
) {
3201 osf
->capabilities
|= htonl(OFPC10_STP
);
3203 osf
->actions
= encode_action_bits(features
->actions
, of10_action_bits
);
3206 osf
->auxiliary_id
= features
->auxiliary_id
;
3210 if (features
->capabilities
& OFPUTIL_C_GROUP_STATS
) {
3211 osf
->capabilities
|= htonl(OFPC11_GROUP_STATS
);
3221 /* Encodes 'pp' into the format required by the switch_features message already
3222 * in 'b', which should have been returned by ofputil_encode_switch_features(),
3223 * and appends the encoded version to 'b'. */
3225 ofputil_put_switch_features_port(const struct ofputil_phy_port
*pp
,
3228 const struct ofp_header
*oh
= b
->data
;
3230 if (oh
->version
< OFP13_VERSION
) {
3231 ofputil_put_phy_port(oh
->version
, pp
, b
);
3235 /* ofputil_port_status */
3237 /* Decodes the OpenFlow "port status" message in '*ops' into an abstract form
3238 * in '*ps'. Returns 0 if successful, otherwise an OFPERR_* value. */
3240 ofputil_decode_port_status(const struct ofp_header
*oh
,
3241 struct ofputil_port_status
*ps
)
3243 const struct ofp_port_status
*ops
;
3247 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
3248 ofpraw_pull_assert(&b
);
3249 ops
= ofpbuf_pull(&b
, sizeof *ops
);
3251 if (ops
->reason
!= OFPPR_ADD
&&
3252 ops
->reason
!= OFPPR_DELETE
&&
3253 ops
->reason
!= OFPPR_MODIFY
) {
3254 return OFPERR_NXBRC_BAD_REASON
;
3256 ps
->reason
= ops
->reason
;
3258 retval
= ofputil_pull_phy_port(oh
->version
, &b
, &ps
->desc
);
3259 ovs_assert(retval
!= EOF
);
3263 /* Converts the abstract form of a "port status" message in '*ps' into an
3264 * OpenFlow message suitable for 'protocol', and returns that encoded form in
3265 * a buffer owned by the caller. */
3267 ofputil_encode_port_status(const struct ofputil_port_status
*ps
,
3268 enum ofputil_protocol protocol
)
3270 struct ofp_port_status
*ops
;
3272 enum ofp_version version
;
3275 version
= ofputil_protocol_to_ofp_version(protocol
);
3278 raw
= OFPRAW_OFPT10_PORT_STATUS
;
3284 raw
= OFPRAW_OFPT11_PORT_STATUS
;
3291 b
= ofpraw_alloc_xid(raw
, version
, htonl(0), 0);
3292 ops
= ofpbuf_put_zeros(b
, sizeof *ops
);
3293 ops
->reason
= ps
->reason
;
3294 ofputil_put_phy_port(version
, &ps
->desc
, b
);
3295 ofpmsg_update_length(b
);
3299 /* ofputil_port_mod */
3301 /* Decodes the OpenFlow "port mod" message in '*oh' into an abstract form in
3302 * '*pm'. Returns 0 if successful, otherwise an OFPERR_* value. */
3304 ofputil_decode_port_mod(const struct ofp_header
*oh
,
3305 struct ofputil_port_mod
*pm
)
3310 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
3311 raw
= ofpraw_pull_assert(&b
);
3313 if (raw
== OFPRAW_OFPT10_PORT_MOD
) {
3314 const struct ofp10_port_mod
*opm
= b
.data
;
3316 pm
->port_no
= u16_to_ofp(ntohs(opm
->port_no
));
3317 memcpy(pm
->hw_addr
, opm
->hw_addr
, ETH_ADDR_LEN
);
3318 pm
->config
= ntohl(opm
->config
) & OFPPC10_ALL
;
3319 pm
->mask
= ntohl(opm
->mask
) & OFPPC10_ALL
;
3320 pm
->advertise
= netdev_port_features_from_ofp10(opm
->advertise
);
3321 } else if (raw
== OFPRAW_OFPT11_PORT_MOD
) {
3322 const struct ofp11_port_mod
*opm
= b
.data
;
3325 error
= ofputil_port_from_ofp11(opm
->port_no
, &pm
->port_no
);
3330 memcpy(pm
->hw_addr
, opm
->hw_addr
, ETH_ADDR_LEN
);
3331 pm
->config
= ntohl(opm
->config
) & OFPPC11_ALL
;
3332 pm
->mask
= ntohl(opm
->mask
) & OFPPC11_ALL
;
3333 pm
->advertise
= netdev_port_features_from_ofp11(opm
->advertise
);
3335 return OFPERR_OFPBRC_BAD_TYPE
;
3338 pm
->config
&= pm
->mask
;
3342 /* Converts the abstract form of a "port mod" message in '*pm' into an OpenFlow
3343 * message suitable for 'protocol', and returns that encoded form in a buffer
3344 * owned by the caller. */
3346 ofputil_encode_port_mod(const struct ofputil_port_mod
*pm
,
3347 enum ofputil_protocol protocol
)
3349 enum ofp_version ofp_version
= ofputil_protocol_to_ofp_version(protocol
);
3352 switch (ofp_version
) {
3353 case OFP10_VERSION
: {
3354 struct ofp10_port_mod
*opm
;
3356 b
= ofpraw_alloc(OFPRAW_OFPT10_PORT_MOD
, ofp_version
, 0);
3357 opm
= ofpbuf_put_zeros(b
, sizeof *opm
);
3358 opm
->port_no
= htons(ofp_to_u16(pm
->port_no
));
3359 memcpy(opm
->hw_addr
, pm
->hw_addr
, ETH_ADDR_LEN
);
3360 opm
->config
= htonl(pm
->config
& OFPPC10_ALL
);
3361 opm
->mask
= htonl(pm
->mask
& OFPPC10_ALL
);
3362 opm
->advertise
= netdev_port_features_to_ofp10(pm
->advertise
);
3368 case OFP13_VERSION
: {
3369 struct ofp11_port_mod
*opm
;
3371 b
= ofpraw_alloc(OFPRAW_OFPT11_PORT_MOD
, ofp_version
, 0);
3372 opm
= ofpbuf_put_zeros(b
, sizeof *opm
);
3373 opm
->port_no
= ofputil_port_to_ofp11(pm
->port_no
);
3374 memcpy(opm
->hw_addr
, pm
->hw_addr
, ETH_ADDR_LEN
);
3375 opm
->config
= htonl(pm
->config
& OFPPC11_ALL
);
3376 opm
->mask
= htonl(pm
->mask
& OFPPC11_ALL
);
3377 opm
->advertise
= netdev_port_features_to_ofp11(pm
->advertise
);
3388 /* ofputil_role_request */
3390 /* Decodes the OpenFlow "role request" or "role reply" message in '*oh' into
3391 * an abstract form in '*rr'. Returns 0 if successful, otherwise an
3392 * OFPERR_* value. */
3394 ofputil_decode_role_message(const struct ofp_header
*oh
,
3395 struct ofputil_role_request
*rr
)
3400 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
3401 raw
= ofpraw_pull_assert(&b
);
3403 if (raw
== OFPRAW_OFPT12_ROLE_REQUEST
||
3404 raw
== OFPRAW_OFPT12_ROLE_REPLY
) {
3405 const struct ofp12_role_request
*orr
= b
.l3
;
3407 if (orr
->role
!= htonl(OFPCR12_ROLE_NOCHANGE
) &&
3408 orr
->role
!= htonl(OFPCR12_ROLE_EQUAL
) &&
3409 orr
->role
!= htonl(OFPCR12_ROLE_MASTER
) &&
3410 orr
->role
!= htonl(OFPCR12_ROLE_SLAVE
)) {
3411 return OFPERR_OFPRRFC_BAD_ROLE
;
3414 rr
->role
= ntohl(orr
->role
);
3415 if (raw
== OFPRAW_OFPT12_ROLE_REQUEST
3416 ? orr
->role
== htonl(OFPCR12_ROLE_NOCHANGE
)
3417 : orr
->generation_id
== htonll(UINT64_MAX
)) {
3418 rr
->have_generation_id
= false;
3419 rr
->generation_id
= 0;
3421 rr
->have_generation_id
= true;
3422 rr
->generation_id
= ntohll(orr
->generation_id
);
3424 } else if (raw
== OFPRAW_NXT_ROLE_REQUEST
||
3425 raw
== OFPRAW_NXT_ROLE_REPLY
) {
3426 const struct nx_role_request
*nrr
= b
.l3
;
3428 BUILD_ASSERT(NX_ROLE_OTHER
+ 1 == OFPCR12_ROLE_EQUAL
);
3429 BUILD_ASSERT(NX_ROLE_MASTER
+ 1 == OFPCR12_ROLE_MASTER
);
3430 BUILD_ASSERT(NX_ROLE_SLAVE
+ 1 == OFPCR12_ROLE_SLAVE
);
3432 if (nrr
->role
!= htonl(NX_ROLE_OTHER
) &&
3433 nrr
->role
!= htonl(NX_ROLE_MASTER
) &&
3434 nrr
->role
!= htonl(NX_ROLE_SLAVE
)) {
3435 return OFPERR_OFPRRFC_BAD_ROLE
;
3438 rr
->role
= ntohl(nrr
->role
) + 1;
3439 rr
->have_generation_id
= false;
3440 rr
->generation_id
= 0;
3448 /* Returns an encoded form of a role reply suitable for the "request" in a
3449 * buffer owned by the caller. */
3451 ofputil_encode_role_reply(const struct ofp_header
*request
,
3452 const struct ofputil_role_request
*rr
)
3457 raw
= ofpraw_decode_assert(request
);
3458 if (raw
== OFPRAW_OFPT12_ROLE_REQUEST
) {
3459 struct ofp12_role_request
*orr
;
3461 buf
= ofpraw_alloc_reply(OFPRAW_OFPT12_ROLE_REPLY
, request
, 0);
3462 orr
= ofpbuf_put_zeros(buf
, sizeof *orr
);
3464 orr
->role
= htonl(rr
->role
);
3465 orr
->generation_id
= htonll(rr
->have_generation_id
3468 } else if (raw
== OFPRAW_NXT_ROLE_REQUEST
) {
3469 struct nx_role_request
*nrr
;
3471 BUILD_ASSERT(NX_ROLE_OTHER
== OFPCR12_ROLE_EQUAL
- 1);
3472 BUILD_ASSERT(NX_ROLE_MASTER
== OFPCR12_ROLE_MASTER
- 1);
3473 BUILD_ASSERT(NX_ROLE_SLAVE
== OFPCR12_ROLE_SLAVE
- 1);
3475 buf
= ofpraw_alloc_reply(OFPRAW_NXT_ROLE_REPLY
, request
, 0);
3476 nrr
= ofpbuf_put_zeros(buf
, sizeof *nrr
);
3477 nrr
->role
= htonl(rr
->role
- 1);
3488 ofputil_put_ofp10_table_stats(const struct ofp12_table_stats
*in
,
3492 enum ofp10_flow_wildcards wc10
;
3493 enum oxm12_ofb_match_fields mf12
;
3496 static const struct wc_map wc_map
[] = {
3497 { OFPFW10_IN_PORT
, OFPXMT12_OFB_IN_PORT
},
3498 { OFPFW10_DL_VLAN
, OFPXMT12_OFB_VLAN_VID
},
3499 { OFPFW10_DL_SRC
, OFPXMT12_OFB_ETH_SRC
},
3500 { OFPFW10_DL_DST
, OFPXMT12_OFB_ETH_DST
},
3501 { OFPFW10_DL_TYPE
, OFPXMT12_OFB_ETH_TYPE
},
3502 { OFPFW10_NW_PROTO
, OFPXMT12_OFB_IP_PROTO
},
3503 { OFPFW10_TP_SRC
, OFPXMT12_OFB_TCP_SRC
},
3504 { OFPFW10_TP_DST
, OFPXMT12_OFB_TCP_DST
},
3505 { OFPFW10_NW_SRC_MASK
, OFPXMT12_OFB_IPV4_SRC
},
3506 { OFPFW10_NW_DST_MASK
, OFPXMT12_OFB_IPV4_DST
},
3507 { OFPFW10_DL_VLAN_PCP
, OFPXMT12_OFB_VLAN_PCP
},
3508 { OFPFW10_NW_TOS
, OFPXMT12_OFB_IP_DSCP
},
3511 struct ofp10_table_stats
*out
;
3512 const struct wc_map
*p
;
3514 out
= ofpbuf_put_zeros(buf
, sizeof *out
);
3515 out
->table_id
= in
->table_id
;
3516 ovs_strlcpy(out
->name
, in
->name
, sizeof out
->name
);
3518 for (p
= wc_map
; p
< &wc_map
[ARRAY_SIZE(wc_map
)]; p
++) {
3519 if (in
->wildcards
& htonll(1ULL << p
->mf12
)) {
3520 out
->wildcards
|= htonl(p
->wc10
);
3523 out
->max_entries
= in
->max_entries
;
3524 out
->active_count
= in
->active_count
;
3525 put_32aligned_be64(&out
->lookup_count
, in
->lookup_count
);
3526 put_32aligned_be64(&out
->matched_count
, in
->matched_count
);
3530 oxm12_to_ofp11_flow_match_fields(ovs_be64 oxm12
)
3533 enum ofp11_flow_match_fields fmf11
;
3534 enum oxm12_ofb_match_fields mf12
;
3537 static const struct map map
[] = {
3538 { OFPFMF11_IN_PORT
, OFPXMT12_OFB_IN_PORT
},
3539 { OFPFMF11_DL_VLAN
, OFPXMT12_OFB_VLAN_VID
},
3540 { OFPFMF11_DL_VLAN_PCP
, OFPXMT12_OFB_VLAN_PCP
},
3541 { OFPFMF11_DL_TYPE
, OFPXMT12_OFB_ETH_TYPE
},
3542 { OFPFMF11_NW_TOS
, OFPXMT12_OFB_IP_DSCP
},
3543 { OFPFMF11_NW_PROTO
, OFPXMT12_OFB_IP_PROTO
},
3544 { OFPFMF11_TP_SRC
, OFPXMT12_OFB_TCP_SRC
},
3545 { OFPFMF11_TP_DST
, OFPXMT12_OFB_TCP_DST
},
3546 { OFPFMF11_MPLS_LABEL
, OFPXMT12_OFB_MPLS_LABEL
},
3547 { OFPFMF11_MPLS_TC
, OFPXMT12_OFB_MPLS_TC
},
3548 /* I don't know what OFPFMF11_TYPE means. */
3549 { OFPFMF11_DL_SRC
, OFPXMT12_OFB_ETH_SRC
},
3550 { OFPFMF11_DL_DST
, OFPXMT12_OFB_ETH_DST
},
3551 { OFPFMF11_NW_SRC
, OFPXMT12_OFB_IPV4_SRC
},
3552 { OFPFMF11_NW_DST
, OFPXMT12_OFB_IPV4_DST
},
3553 { OFPFMF11_METADATA
, OFPXMT12_OFB_METADATA
},
3556 const struct map
*p
;
3560 for (p
= map
; p
< &map
[ARRAY_SIZE(map
)]; p
++) {
3561 if (oxm12
& htonll(1ULL << p
->mf12
)) {
3565 return htonl(fmf11
);
3569 ofputil_put_ofp11_table_stats(const struct ofp12_table_stats
*in
,
3572 struct ofp11_table_stats
*out
;
3574 out
= ofpbuf_put_zeros(buf
, sizeof *out
);
3575 out
->table_id
= in
->table_id
;
3576 ovs_strlcpy(out
->name
, in
->name
, sizeof out
->name
);
3577 out
->wildcards
= oxm12_to_ofp11_flow_match_fields(in
->wildcards
);
3578 out
->match
= oxm12_to_ofp11_flow_match_fields(in
->match
);
3579 out
->instructions
= in
->instructions
;
3580 out
->write_actions
= in
->write_actions
;
3581 out
->apply_actions
= in
->apply_actions
;
3582 out
->config
= in
->config
;
3583 out
->max_entries
= in
->max_entries
;
3584 out
->active_count
= in
->active_count
;
3585 out
->lookup_count
= in
->lookup_count
;
3586 out
->matched_count
= in
->matched_count
;
3590 ofputil_put_ofp13_table_stats(const struct ofp12_table_stats
*in
,
3593 struct ofp13_table_stats
*out
;
3595 /* OF 1.3 splits table features off the ofp_table_stats,
3596 * so there is not much here. */
3598 out
= ofpbuf_put_uninit(buf
, sizeof *out
);
3599 out
->table_id
= in
->table_id
;
3600 out
->active_count
= in
->active_count
;
3601 out
->lookup_count
= in
->lookup_count
;
3602 out
->matched_count
= in
->matched_count
;
3606 ofputil_encode_table_stats_reply(const struct ofp12_table_stats stats
[], int n
,
3607 const struct ofp_header
*request
)
3609 struct ofpbuf
*reply
;
3612 reply
= ofpraw_alloc_stats_reply(request
, n
* sizeof *stats
);
3614 switch ((enum ofp_version
) request
->version
) {
3616 for (i
= 0; i
< n
; i
++) {
3617 ofputil_put_ofp10_table_stats(&stats
[i
], reply
);
3622 for (i
= 0; i
< n
; i
++) {
3623 ofputil_put_ofp11_table_stats(&stats
[i
], reply
);
3628 ofpbuf_put(reply
, stats
, n
* sizeof *stats
);
3632 for (i
= 0; i
< n
; i
++) {
3633 ofputil_put_ofp13_table_stats(&stats
[i
], reply
);
3644 /* ofputil_flow_monitor_request */
3646 /* Converts an NXST_FLOW_MONITOR request in 'msg' into an abstract
3647 * ofputil_flow_monitor_request in 'rq'.
3649 * Multiple NXST_FLOW_MONITOR requests can be packed into a single OpenFlow
3650 * message. Calling this function multiple times for a single 'msg' iterates
3651 * through the requests. The caller must initially leave 'msg''s layer
3652 * pointers null and not modify them between calls.
3654 * Returns 0 if successful, EOF if no requests were left in this 'msg',
3655 * otherwise an OFPERR_* value. */
3657 ofputil_decode_flow_monitor_request(struct ofputil_flow_monitor_request
*rq
,
3660 struct nx_flow_monitor_request
*nfmr
;
3664 msg
->l2
= msg
->data
;
3665 ofpraw_pull_assert(msg
);
3672 nfmr
= ofpbuf_try_pull(msg
, sizeof *nfmr
);
3674 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW_MONITOR request has %zu "
3675 "leftover bytes at end", msg
->size
);
3676 return OFPERR_OFPBRC_BAD_LEN
;
3679 flags
= ntohs(nfmr
->flags
);
3680 if (!(flags
& (NXFMF_ADD
| NXFMF_DELETE
| NXFMF_MODIFY
))
3681 || flags
& ~(NXFMF_INITIAL
| NXFMF_ADD
| NXFMF_DELETE
3682 | NXFMF_MODIFY
| NXFMF_ACTIONS
| NXFMF_OWN
)) {
3683 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW_MONITOR has bad flags %#"PRIx16
,
3685 return OFPERR_NXBRC_FM_BAD_FLAGS
;
3688 if (!is_all_zeros(nfmr
->zeros
, sizeof nfmr
->zeros
)) {
3689 return OFPERR_NXBRC_MUST_BE_ZERO
;
3692 rq
->id
= ntohl(nfmr
->id
);
3694 rq
->out_port
= u16_to_ofp(ntohs(nfmr
->out_port
));
3695 rq
->table_id
= nfmr
->table_id
;
3697 return nx_pull_match(msg
, ntohs(nfmr
->match_len
), &rq
->match
, NULL
, NULL
);
3701 ofputil_append_flow_monitor_request(
3702 const struct ofputil_flow_monitor_request
*rq
, struct ofpbuf
*msg
)
3704 struct nx_flow_monitor_request
*nfmr
;
3709 ofpraw_put(OFPRAW_NXST_FLOW_MONITOR_REQUEST
, OFP10_VERSION
, msg
);
3712 start_ofs
= msg
->size
;
3713 ofpbuf_put_zeros(msg
, sizeof *nfmr
);
3714 match_len
= nx_put_match(msg
, &rq
->match
, htonll(0), htonll(0));
3716 nfmr
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *nfmr
);
3717 nfmr
->id
= htonl(rq
->id
);
3718 nfmr
->flags
= htons(rq
->flags
);
3719 nfmr
->out_port
= htons(ofp_to_u16(rq
->out_port
));
3720 nfmr
->match_len
= htons(match_len
);
3721 nfmr
->table_id
= rq
->table_id
;
3724 /* Converts an NXST_FLOW_MONITOR reply (also known as a flow update) in 'msg'
3725 * into an abstract ofputil_flow_update in 'update'. The caller must have
3726 * initialized update->match to point to space allocated for a match.
3728 * Uses 'ofpacts' to store the abstract OFPACT_* version of the update's
3729 * actions (except for NXFME_ABBREV, which never includes actions). The caller
3730 * must initialize 'ofpacts' and retains ownership of it. 'update->ofpacts'
3731 * will point into the 'ofpacts' buffer.
3733 * Multiple flow updates can be packed into a single OpenFlow message. Calling
3734 * this function multiple times for a single 'msg' iterates through the
3735 * updates. The caller must initially leave 'msg''s layer pointers null and
3736 * not modify them between calls.
3738 * Returns 0 if successful, EOF if no updates were left in this 'msg',
3739 * otherwise an OFPERR_* value. */
3741 ofputil_decode_flow_update(struct ofputil_flow_update
*update
,
3742 struct ofpbuf
*msg
, struct ofpbuf
*ofpacts
)
3744 struct nx_flow_update_header
*nfuh
;
3745 unsigned int length
;
3748 msg
->l2
= msg
->data
;
3749 ofpraw_pull_assert(msg
);
3756 if (msg
->size
< sizeof(struct nx_flow_update_header
)) {
3761 update
->event
= ntohs(nfuh
->event
);
3762 length
= ntohs(nfuh
->length
);
3763 if (length
> msg
->size
|| length
% 8) {
3767 if (update
->event
== NXFME_ABBREV
) {
3768 struct nx_flow_update_abbrev
*nfua
;
3770 if (length
!= sizeof *nfua
) {
3774 nfua
= ofpbuf_pull(msg
, sizeof *nfua
);
3775 update
->xid
= nfua
->xid
;
3777 } else if (update
->event
== NXFME_ADDED
3778 || update
->event
== NXFME_DELETED
3779 || update
->event
== NXFME_MODIFIED
) {
3780 struct nx_flow_update_full
*nfuf
;
3781 unsigned int actions_len
;
3782 unsigned int match_len
;
3785 if (length
< sizeof *nfuf
) {
3789 nfuf
= ofpbuf_pull(msg
, sizeof *nfuf
);
3790 match_len
= ntohs(nfuf
->match_len
);
3791 if (sizeof *nfuf
+ match_len
> length
) {
3795 update
->reason
= ntohs(nfuf
->reason
);
3796 update
->idle_timeout
= ntohs(nfuf
->idle_timeout
);
3797 update
->hard_timeout
= ntohs(nfuf
->hard_timeout
);
3798 update
->table_id
= nfuf
->table_id
;
3799 update
->cookie
= nfuf
->cookie
;
3800 update
->priority
= ntohs(nfuf
->priority
);
3802 error
= nx_pull_match(msg
, match_len
, update
->match
, NULL
, NULL
);
3807 actions_len
= length
- sizeof *nfuf
- ROUND_UP(match_len
, 8);
3808 error
= ofpacts_pull_openflow10(msg
, actions_len
, ofpacts
);
3813 update
->ofpacts
= ofpacts
->data
;
3814 update
->ofpacts_len
= ofpacts
->size
;
3817 VLOG_WARN_RL(&bad_ofmsg_rl
,
3818 "NXST_FLOW_MONITOR reply has bad event %"PRIu16
,
3819 ntohs(nfuh
->event
));
3820 return OFPERR_NXBRC_FM_BAD_EVENT
;
3824 VLOG_WARN_RL(&bad_ofmsg_rl
, "NXST_FLOW_MONITOR reply has %zu "
3825 "leftover bytes at end", msg
->size
);
3826 return OFPERR_OFPBRC_BAD_LEN
;
3830 ofputil_decode_flow_monitor_cancel(const struct ofp_header
*oh
)
3832 const struct nx_flow_monitor_cancel
*cancel
= ofpmsg_body(oh
);
3834 return ntohl(cancel
->id
);
3838 ofputil_encode_flow_monitor_cancel(uint32_t id
)
3840 struct nx_flow_monitor_cancel
*nfmc
;
3843 msg
= ofpraw_alloc(OFPRAW_NXT_FLOW_MONITOR_CANCEL
, OFP10_VERSION
, 0);
3844 nfmc
= ofpbuf_put_uninit(msg
, sizeof *nfmc
);
3845 nfmc
->id
= htonl(id
);
3850 ofputil_start_flow_update(struct list
*replies
)
3854 msg
= ofpraw_alloc_xid(OFPRAW_NXST_FLOW_MONITOR_REPLY
, OFP10_VERSION
,
3858 list_push_back(replies
, &msg
->list_node
);
3862 ofputil_append_flow_update(const struct ofputil_flow_update
*update
,
3863 struct list
*replies
)
3865 struct nx_flow_update_header
*nfuh
;
3869 msg
= ofpbuf_from_list(list_back(replies
));
3870 start_ofs
= msg
->size
;
3872 if (update
->event
== NXFME_ABBREV
) {
3873 struct nx_flow_update_abbrev
*nfua
;
3875 nfua
= ofpbuf_put_zeros(msg
, sizeof *nfua
);
3876 nfua
->xid
= update
->xid
;
3878 struct nx_flow_update_full
*nfuf
;
3881 ofpbuf_put_zeros(msg
, sizeof *nfuf
);
3882 match_len
= nx_put_match(msg
, update
->match
, htonll(0), htonll(0));
3883 ofpacts_put_openflow10(update
->ofpacts
, update
->ofpacts_len
, msg
);
3885 nfuf
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *nfuf
);
3886 nfuf
->reason
= htons(update
->reason
);
3887 nfuf
->priority
= htons(update
->priority
);
3888 nfuf
->idle_timeout
= htons(update
->idle_timeout
);
3889 nfuf
->hard_timeout
= htons(update
->hard_timeout
);
3890 nfuf
->match_len
= htons(match_len
);
3891 nfuf
->table_id
= update
->table_id
;
3892 nfuf
->cookie
= update
->cookie
;
3895 nfuh
= ofpbuf_at_assert(msg
, start_ofs
, sizeof *nfuh
);
3896 nfuh
->length
= htons(msg
->size
- start_ofs
);
3897 nfuh
->event
= htons(update
->event
);
3899 ofpmp_postappend(replies
, start_ofs
);
3903 ofputil_encode_packet_out(const struct ofputil_packet_out
*po
,
3904 enum ofputil_protocol protocol
)
3906 enum ofp_version ofp_version
= ofputil_protocol_to_ofp_version(protocol
);
3910 size
= po
->ofpacts_len
;
3911 if (po
->buffer_id
== UINT32_MAX
) {
3912 size
+= po
->packet_len
;
3915 switch (ofp_version
) {
3916 case OFP10_VERSION
: {
3917 struct ofp10_packet_out
*opo
;
3920 msg
= ofpraw_alloc(OFPRAW_OFPT10_PACKET_OUT
, OFP10_VERSION
, size
);
3921 ofpbuf_put_zeros(msg
, sizeof *opo
);
3922 actions_ofs
= msg
->size
;
3923 ofpacts_put_openflow10(po
->ofpacts
, po
->ofpacts_len
, msg
);
3926 opo
->buffer_id
= htonl(po
->buffer_id
);
3927 opo
->in_port
= htons(ofp_to_u16(po
->in_port
));
3928 opo
->actions_len
= htons(msg
->size
- actions_ofs
);
3934 case OFP13_VERSION
: {
3935 struct ofp11_packet_out
*opo
;
3938 msg
= ofpraw_alloc(OFPRAW_OFPT11_PACKET_OUT
, ofp_version
, size
);
3939 ofpbuf_put_zeros(msg
, sizeof *opo
);
3940 len
= ofpacts_put_openflow11_actions(po
->ofpacts
, po
->ofpacts_len
, msg
);
3943 opo
->buffer_id
= htonl(po
->buffer_id
);
3944 opo
->in_port
= ofputil_port_to_ofp11(po
->in_port
);
3945 opo
->actions_len
= htons(len
);
3953 if (po
->buffer_id
== UINT32_MAX
) {
3954 ofpbuf_put(msg
, po
->packet
, po
->packet_len
);
3957 ofpmsg_update_length(msg
);
3962 /* Creates and returns an OFPT_ECHO_REQUEST message with an empty payload. */
3964 make_echo_request(enum ofp_version ofp_version
)
3966 return ofpraw_alloc_xid(OFPRAW_OFPT_ECHO_REQUEST
, ofp_version
,
3970 /* Creates and returns an OFPT_ECHO_REPLY message matching the
3971 * OFPT_ECHO_REQUEST message in 'rq'. */
3973 make_echo_reply(const struct ofp_header
*rq
)
3975 struct ofpbuf rq_buf
;
3976 struct ofpbuf
*reply
;
3978 ofpbuf_use_const(&rq_buf
, rq
, ntohs(rq
->length
));
3979 ofpraw_pull_assert(&rq_buf
);
3981 reply
= ofpraw_alloc_reply(OFPRAW_OFPT_ECHO_REPLY
, rq
, rq_buf
.size
);
3982 ofpbuf_put(reply
, rq_buf
.data
, rq_buf
.size
);
3987 ofputil_encode_barrier_request(enum ofp_version ofp_version
)
3991 switch (ofp_version
) {
3995 type
= OFPRAW_OFPT11_BARRIER_REQUEST
;
3999 type
= OFPRAW_OFPT10_BARRIER_REQUEST
;
4006 return ofpraw_alloc(type
, ofp_version
, 0);
4010 ofputil_frag_handling_to_string(enum ofp_config_flags flags
)
4012 switch (flags
& OFPC_FRAG_MASK
) {
4013 case OFPC_FRAG_NORMAL
: return "normal";
4014 case OFPC_FRAG_DROP
: return "drop";
4015 case OFPC_FRAG_REASM
: return "reassemble";
4016 case OFPC_FRAG_NX_MATCH
: return "nx-match";
4023 ofputil_frag_handling_from_string(const char *s
, enum ofp_config_flags
*flags
)
4025 if (!strcasecmp(s
, "normal")) {
4026 *flags
= OFPC_FRAG_NORMAL
;
4027 } else if (!strcasecmp(s
, "drop")) {
4028 *flags
= OFPC_FRAG_DROP
;
4029 } else if (!strcasecmp(s
, "reassemble")) {
4030 *flags
= OFPC_FRAG_REASM
;
4031 } else if (!strcasecmp(s
, "nx-match")) {
4032 *flags
= OFPC_FRAG_NX_MATCH
;
4039 /* Converts the OpenFlow 1.1+ port number 'ofp11_port' into an OpenFlow 1.0
4040 * port number and stores the latter in '*ofp10_port', for the purpose of
4041 * decoding OpenFlow 1.1+ protocol messages. Returns 0 if successful,
4042 * otherwise an OFPERR_* number. On error, stores OFPP_NONE in '*ofp10_port'.
4044 * See the definition of OFP11_MAX for an explanation of the mapping. */
4046 ofputil_port_from_ofp11(ovs_be32 ofp11_port
, ofp_port_t
*ofp10_port
)
4048 uint32_t ofp11_port_h
= ntohl(ofp11_port
);
4050 if (ofp11_port_h
< ofp_to_u16(OFPP_MAX
)) {
4051 *ofp10_port
= u16_to_ofp(ofp11_port_h
);
4053 } else if (ofp11_port_h
>= ofp11_to_u32(OFPP11_MAX
)) {
4054 *ofp10_port
= u16_to_ofp(ofp11_port_h
- OFPP11_OFFSET
);
4057 *ofp10_port
= OFPP_NONE
;
4058 VLOG_WARN_RL(&bad_ofmsg_rl
, "port %"PRIu32
" is outside the supported "
4059 "range 0 through %d or 0x%"PRIx32
" through 0x%"PRIx32
,
4060 ofp11_port_h
, ofp_to_u16(OFPP_MAX
) - 1,
4061 ofp11_to_u32(OFPP11_MAX
), UINT32_MAX
);
4062 return OFPERR_OFPBAC_BAD_OUT_PORT
;
4066 /* Returns the OpenFlow 1.1+ port number equivalent to the OpenFlow 1.0 port
4067 * number 'ofp10_port', for encoding OpenFlow 1.1+ protocol messages.
4069 * See the definition of OFP11_MAX for an explanation of the mapping. */
4071 ofputil_port_to_ofp11(ofp_port_t ofp10_port
)
4073 return htonl(ofp_to_u16(ofp10_port
) < ofp_to_u16(OFPP_MAX
)
4074 ? ofp_to_u16(ofp10_port
)
4075 : ofp_to_u16(ofp10_port
) + OFPP11_OFFSET
);
4078 /* Checks that 'port' is a valid output port for the OFPAT10_OUTPUT action, given
4079 * that the switch will never have more than 'max_ports' ports. Returns 0 if
4080 * 'port' is valid, otherwise an OpenFlow return code. */
4082 ofputil_check_output_port(ofp_port_t port
, ofp_port_t max_ports
)
4090 case OFPP_CONTROLLER
:
4096 if (ofp_to_u16(port
) < ofp_to_u16(max_ports
)) {
4099 return OFPERR_OFPBAC_BAD_OUT_PORT
;
4103 #define OFPUTIL_NAMED_PORTS \
4104 OFPUTIL_NAMED_PORT(IN_PORT) \
4105 OFPUTIL_NAMED_PORT(TABLE) \
4106 OFPUTIL_NAMED_PORT(NORMAL) \
4107 OFPUTIL_NAMED_PORT(FLOOD) \
4108 OFPUTIL_NAMED_PORT(ALL) \
4109 OFPUTIL_NAMED_PORT(CONTROLLER) \
4110 OFPUTIL_NAMED_PORT(LOCAL) \
4111 OFPUTIL_NAMED_PORT(ANY)
4113 /* For backwards compatibility, so that "none" is recognized as OFPP_ANY */
4114 #define OFPUTIL_NAMED_PORTS_WITH_NONE \
4115 OFPUTIL_NAMED_PORTS \
4116 OFPUTIL_NAMED_PORT(NONE)
4118 /* Stores the port number represented by 's' into '*portp'. 's' may be an
4119 * integer or, for reserved ports, the standard OpenFlow name for the port
4122 * Returns true if successful, false if 's' is not a valid OpenFlow port number
4123 * or name. The caller should issue an error message in this case, because
4124 * this function usually does not. (This gives the caller an opportunity to
4125 * look up the port name another way, e.g. by contacting the switch and listing
4126 * the names of all its ports).
4128 * This function accepts OpenFlow 1.0 port numbers. It also accepts a subset
4129 * of OpenFlow 1.1+ port numbers, mapping those port numbers into the 16-bit
4130 * range as described in include/openflow/openflow-1.1.h. */
4132 ofputil_port_from_string(const char *s
, ofp_port_t
*portp
)
4137 if (str_to_uint(s
, 10, &port32
)) {
4138 if (port32
< ofp_to_u16(OFPP_MAX
)) {
4140 } else if (port32
< ofp_to_u16(OFPP_FIRST_RESV
)) {
4141 VLOG_WARN("port %u is a reserved OF1.0 port number that will "
4142 "be translated to %u when talking to an OF1.1 or "
4143 "later controller", port32
, port32
+ OFPP11_OFFSET
);
4144 } else if (port32
<= ofp_to_u16(OFPP_LAST_RESV
)) {
4145 char name
[OFP_MAX_PORT_NAME_LEN
];
4147 ofputil_port_to_string(u16_to_ofp(port32
), name
, sizeof name
);
4148 VLOG_WARN_ONCE("referring to port %s as %"PRIu32
" is deprecated "
4149 "for compatibility with OpenFlow 1.1 and later",
4151 } else if (port32
< ofp11_to_u32(OFPP11_MAX
)) {
4152 VLOG_WARN("port %u is outside the supported range 0 through "
4153 "%"PRIx16
" or 0x%x through 0x%"PRIx32
, port32
,
4154 UINT16_MAX
, ofp11_to_u32(OFPP11_MAX
), UINT32_MAX
);
4157 port32
-= OFPP11_OFFSET
;
4160 *portp
= u16_to_ofp(port32
);
4167 static const struct pair pairs
[] = {
4168 #define OFPUTIL_NAMED_PORT(NAME) {#NAME, OFPP_##NAME},
4169 OFPUTIL_NAMED_PORTS_WITH_NONE
4170 #undef OFPUTIL_NAMED_PORT
4172 const struct pair
*p
;
4174 for (p
= pairs
; p
< &pairs
[ARRAY_SIZE(pairs
)]; p
++) {
4175 if (!strcasecmp(s
, p
->name
)) {
4184 /* Appends to 's' a string representation of the OpenFlow port number 'port'.
4185 * Most ports' string representation is just the port number, but for special
4186 * ports, e.g. OFPP_LOCAL, it is the name, e.g. "LOCAL". */
4188 ofputil_format_port(ofp_port_t port
, struct ds
*s
)
4190 char name
[OFP_MAX_PORT_NAME_LEN
];
4192 ofputil_port_to_string(port
, name
, sizeof name
);
4193 ds_put_cstr(s
, name
);
4196 /* Puts in the 'bufsize' byte in 'namebuf' a null-terminated string
4197 * representation of OpenFlow port number 'port'. Most ports are represented
4198 * as just the port number, but special ports, e.g. OFPP_LOCAL, are represented
4199 * by name, e.g. "LOCAL". */
4201 ofputil_port_to_string(ofp_port_t port
,
4202 char namebuf
[OFP_MAX_PORT_NAME_LEN
], size_t bufsize
)
4205 #define OFPUTIL_NAMED_PORT(NAME) \
4207 ovs_strlcpy(namebuf, #NAME, bufsize); \
4210 #undef OFPUTIL_NAMED_PORT
4213 snprintf(namebuf
, bufsize
, "%"PRIu16
, port
);
4218 /* Given a buffer 'b' that contains an array of OpenFlow ports of type
4219 * 'ofp_version', tries to pull the first element from the array. If
4220 * successful, initializes '*pp' with an abstract representation of the
4221 * port and returns 0. If no ports remain to be decoded, returns EOF.
4222 * On an error, returns a positive OFPERR_* value. */
4224 ofputil_pull_phy_port(enum ofp_version ofp_version
, struct ofpbuf
*b
,
4225 struct ofputil_phy_port
*pp
)
4227 switch (ofp_version
) {
4228 case OFP10_VERSION
: {
4229 const struct ofp10_phy_port
*opp
= ofpbuf_try_pull(b
, sizeof *opp
);
4230 return opp
? ofputil_decode_ofp10_phy_port(pp
, opp
) : EOF
;
4234 case OFP13_VERSION
: {
4235 const struct ofp11_port
*op
= ofpbuf_try_pull(b
, sizeof *op
);
4236 return op
? ofputil_decode_ofp11_port(pp
, op
) : EOF
;
4243 /* Given a buffer 'b' that contains an array of OpenFlow ports of type
4244 * 'ofp_version', returns the number of elements. */
4245 size_t ofputil_count_phy_ports(uint8_t ofp_version
, struct ofpbuf
*b
)
4247 return b
->size
/ ofputil_get_phy_port_size(ofp_version
);
4250 /* Returns the 'enum ofputil_action_code' corresponding to 'name' (e.g. if
4251 * 'name' is "output" then the return value is OFPUTIL_OFPAT10_OUTPUT), or -1 if
4252 * 'name' is not the name of any action.
4254 * ofp-util.def lists the mapping from names to action. */
4256 ofputil_action_code_from_name(const char *name
)
4258 static const char *const names
[OFPUTIL_N_ACTIONS
] = {
4260 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) NAME,
4261 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
4262 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) NAME,
4263 #include "ofp-util.def"
4266 const char *const *p
;
4268 for (p
= names
; p
< &names
[ARRAY_SIZE(names
)]; p
++) {
4269 if (*p
&& !strcasecmp(name
, *p
)) {
4276 /* Appends an action of the type specified by 'code' to 'buf' and returns the
4277 * action. Initializes the parts of 'action' that identify it as having type
4278 * <ENUM> and length 'sizeof *action' and zeros the rest. For actions that
4279 * have variable length, the length used and cleared is that of struct
4282 ofputil_put_action(enum ofputil_action_code code
, struct ofpbuf
*buf
)
4285 case OFPUTIL_ACTION_INVALID
:
4288 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
4289 case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
4290 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
4291 case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
4292 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
4293 case OFPUTIL_##ENUM: return ofputil_put_##ENUM(buf);
4294 #include "ofp-util.def"
4299 #define OFPAT10_ACTION(ENUM, STRUCT, NAME) \
4301 ofputil_init_##ENUM(struct STRUCT *s) \
4303 memset(s, 0, sizeof *s); \
4304 s->type = htons(ENUM); \
4305 s->len = htons(sizeof *s); \
4309 ofputil_put_##ENUM(struct ofpbuf *buf) \
4311 struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
4312 ofputil_init_##ENUM(s); \
4315 #define OFPAT11_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
4316 OFPAT10_ACTION(ENUM, STRUCT, NAME)
4317 #define NXAST_ACTION(ENUM, STRUCT, EXTENSIBLE, NAME) \
4319 ofputil_init_##ENUM(struct STRUCT *s) \
4321 memset(s, 0, sizeof *s); \
4322 s->type = htons(OFPAT10_VENDOR); \
4323 s->len = htons(sizeof *s); \
4324 s->vendor = htonl(NX_VENDOR_ID); \
4325 s->subtype = htons(ENUM); \
4329 ofputil_put_##ENUM(struct ofpbuf *buf) \
4331 struct STRUCT *s = ofpbuf_put_uninit(buf, sizeof *s); \
4332 ofputil_init_##ENUM(s); \
4335 #include "ofp-util.def"
4338 ofputil_normalize_match__(struct match
*match
, bool may_log
)
4341 MAY_NW_ADDR
= 1 << 0, /* nw_src, nw_dst */
4342 MAY_TP_ADDR
= 1 << 1, /* tp_src, tp_dst */
4343 MAY_NW_PROTO
= 1 << 2, /* nw_proto */
4344 MAY_IPVx
= 1 << 3, /* tos, frag, ttl */
4345 MAY_ARP_SHA
= 1 << 4, /* arp_sha */
4346 MAY_ARP_THA
= 1 << 5, /* arp_tha */
4347 MAY_IPV6
= 1 << 6, /* ipv6_src, ipv6_dst, ipv6_label */
4348 MAY_ND_TARGET
= 1 << 7, /* nd_target */
4349 MAY_MPLS
= 1 << 8, /* mpls label and tc */
4352 struct flow_wildcards wc
;
4354 /* Figure out what fields may be matched. */
4355 if (match
->flow
.dl_type
== htons(ETH_TYPE_IP
)) {
4356 may_match
= MAY_NW_PROTO
| MAY_IPVx
| MAY_NW_ADDR
;
4357 if (match
->flow
.nw_proto
== IPPROTO_TCP
||
4358 match
->flow
.nw_proto
== IPPROTO_UDP
||
4359 match
->flow
.nw_proto
== IPPROTO_ICMP
) {
4360 may_match
|= MAY_TP_ADDR
;
4362 } else if (match
->flow
.dl_type
== htons(ETH_TYPE_IPV6
)) {
4363 may_match
= MAY_NW_PROTO
| MAY_IPVx
| MAY_IPV6
;
4364 if (match
->flow
.nw_proto
== IPPROTO_TCP
||
4365 match
->flow
.nw_proto
== IPPROTO_UDP
) {
4366 may_match
|= MAY_TP_ADDR
;
4367 } else if (match
->flow
.nw_proto
== IPPROTO_ICMPV6
) {
4368 may_match
|= MAY_TP_ADDR
;
4369 if (match
->flow
.tp_src
== htons(ND_NEIGHBOR_SOLICIT
)) {
4370 may_match
|= MAY_ND_TARGET
| MAY_ARP_SHA
;
4371 } else if (match
->flow
.tp_src
== htons(ND_NEIGHBOR_ADVERT
)) {
4372 may_match
|= MAY_ND_TARGET
| MAY_ARP_THA
;
4375 } else if (match
->flow
.dl_type
== htons(ETH_TYPE_ARP
) ||
4376 match
->flow
.dl_type
== htons(ETH_TYPE_RARP
)) {
4377 may_match
= MAY_NW_PROTO
| MAY_NW_ADDR
| MAY_ARP_SHA
| MAY_ARP_THA
;
4378 } else if (eth_type_mpls(match
->flow
.dl_type
)) {
4379 may_match
= MAY_MPLS
;
4384 /* Clear the fields that may not be matched. */
4386 if (!(may_match
& MAY_NW_ADDR
)) {
4387 wc
.masks
.nw_src
= wc
.masks
.nw_dst
= htonl(0);
4389 if (!(may_match
& MAY_TP_ADDR
)) {
4390 wc
.masks
.tp_src
= wc
.masks
.tp_dst
= htons(0);
4392 if (!(may_match
& MAY_NW_PROTO
)) {
4393 wc
.masks
.nw_proto
= 0;
4395 if (!(may_match
& MAY_IPVx
)) {
4396 wc
.masks
.nw_tos
= 0;
4397 wc
.masks
.nw_ttl
= 0;
4399 if (!(may_match
& MAY_ARP_SHA
)) {
4400 memset(wc
.masks
.arp_sha
, 0, ETH_ADDR_LEN
);
4402 if (!(may_match
& MAY_ARP_THA
)) {
4403 memset(wc
.masks
.arp_tha
, 0, ETH_ADDR_LEN
);
4405 if (!(may_match
& MAY_IPV6
)) {
4406 wc
.masks
.ipv6_src
= wc
.masks
.ipv6_dst
= in6addr_any
;
4407 wc
.masks
.ipv6_label
= htonl(0);
4409 if (!(may_match
& MAY_ND_TARGET
)) {
4410 wc
.masks
.nd_target
= in6addr_any
;
4412 if (!(may_match
& MAY_MPLS
)) {
4413 wc
.masks
.mpls_lse
= htonl(0);
4414 wc
.masks
.mpls_depth
= 0;
4417 /* Log any changes. */
4418 if (!flow_wildcards_equal(&wc
, &match
->wc
)) {
4419 bool log
= may_log
&& !VLOG_DROP_INFO(&bad_ofmsg_rl
);
4420 char *pre
= log
? match_to_string(match
, OFP_DEFAULT_PRIORITY
) : NULL
;
4423 match_zero_wildcarded_fields(match
);
4426 char *post
= match_to_string(match
, OFP_DEFAULT_PRIORITY
);
4427 VLOG_INFO("normalization changed ofp_match, details:");
4428 VLOG_INFO(" pre: %s", pre
);
4429 VLOG_INFO("post: %s", post
);
4436 /* "Normalizes" the wildcards in 'match'. That means:
4438 * 1. If the type of level N is known, then only the valid fields for that
4439 * level may be specified. For example, ARP does not have a TOS field,
4440 * so nw_tos must be wildcarded if 'match' specifies an ARP flow.
4441 * Similarly, IPv4 does not have any IPv6 addresses, so ipv6_src and
4442 * ipv6_dst (and other fields) must be wildcarded if 'match' specifies an
4445 * 2. If the type of level N is not known (or not understood by Open
4446 * vSwitch), then no fields at all for that level may be specified. For
4447 * example, Open vSwitch does not understand SCTP, an L4 protocol, so the
4448 * L4 fields tp_src and tp_dst must be wildcarded if 'match' specifies an
4451 * If this function changes 'match', it logs a rate-limited informational
4454 ofputil_normalize_match(struct match
*match
)
4456 ofputil_normalize_match__(match
, true);
4459 /* Same as ofputil_normalize_match() without the logging. Thus, this function
4460 * is suitable for a program's internal use, whereas ofputil_normalize_match()
4461 * sense for use on flows received from elsewhere (so that a bug in the program
4462 * that sent them can be reported and corrected). */
4464 ofputil_normalize_match_quiet(struct match
*match
)
4466 ofputil_normalize_match__(match
, false);
4469 /* Parses a key or a key-value pair from '*stringp'.
4471 * On success: Stores the key into '*keyp'. Stores the value, if present, into
4472 * '*valuep', otherwise an empty string. Advances '*stringp' past the end of
4473 * the key-value pair, preparing it for another call. '*keyp' and '*valuep'
4474 * are substrings of '*stringp' created by replacing some of its bytes by null
4475 * terminators. Returns true.
4477 * If '*stringp' is just white space or commas, sets '*keyp' and '*valuep' to
4478 * NULL and returns false. */
4480 ofputil_parse_key_value(char **stringp
, char **keyp
, char **valuep
)
4482 char *pos
, *key
, *value
;
4486 pos
+= strspn(pos
, ", \t\r\n");
4488 *keyp
= *valuep
= NULL
;
4493 key_len
= strcspn(pos
, ":=(, \t\r\n");
4494 if (key
[key_len
] == ':' || key
[key_len
] == '=') {
4495 /* The value can be separated by a colon. */
4498 value
= key
+ key_len
+ 1;
4499 value_len
= strcspn(value
, ", \t\r\n");
4500 pos
= value
+ value_len
+ (value
[value_len
] != '\0');
4501 value
[value_len
] = '\0';
4502 } else if (key
[key_len
] == '(') {
4503 /* The value can be surrounded by balanced parentheses. The outermost
4504 * set of parentheses is removed. */
4508 value
= key
+ key_len
+ 1;
4509 for (value_len
= 0; level
> 0; value_len
++) {
4510 switch (value
[value_len
]) {
4524 value
[value_len
- 1] = '\0';
4525 pos
= value
+ value_len
;
4527 /* There might be no value at all. */
4528 value
= key
+ key_len
; /* Will become the empty string below. */
4529 pos
= key
+ key_len
+ (key
[key_len
] != '\0');
4531 key
[key_len
] = '\0';
4539 /* Encode a dump ports request for 'port', the encoded message
4540 * will be for Open Flow version 'ofp_version'. Returns message
4541 * as a struct ofpbuf. Returns encoded message on success, NULL on error */
4543 ofputil_encode_dump_ports_request(enum ofp_version ofp_version
, ofp_port_t port
)
4545 struct ofpbuf
*request
;
4547 switch (ofp_version
) {
4548 case OFP10_VERSION
: {
4549 struct ofp10_port_stats_request
*req
;
4550 request
= ofpraw_alloc(OFPRAW_OFPST10_PORT_REQUEST
, ofp_version
, 0);
4551 req
= ofpbuf_put_zeros(request
, sizeof *req
);
4552 req
->port_no
= htons(ofp_to_u16(port
));
4557 case OFP13_VERSION
: {
4558 struct ofp11_port_stats_request
*req
;
4559 request
= ofpraw_alloc(OFPRAW_OFPST11_PORT_REQUEST
, ofp_version
, 0);
4560 req
= ofpbuf_put_zeros(request
, sizeof *req
);
4561 req
->port_no
= ofputil_port_to_ofp11(port
);
4572 ofputil_port_stats_to_ofp10(const struct ofputil_port_stats
*ops
,
4573 struct ofp10_port_stats
*ps10
)
4575 ps10
->port_no
= htons(ofp_to_u16(ops
->port_no
));
4576 memset(ps10
->pad
, 0, sizeof ps10
->pad
);
4577 put_32aligned_be64(&ps10
->rx_packets
, htonll(ops
->stats
.rx_packets
));
4578 put_32aligned_be64(&ps10
->tx_packets
, htonll(ops
->stats
.tx_packets
));
4579 put_32aligned_be64(&ps10
->rx_bytes
, htonll(ops
->stats
.rx_bytes
));
4580 put_32aligned_be64(&ps10
->tx_bytes
, htonll(ops
->stats
.tx_bytes
));
4581 put_32aligned_be64(&ps10
->rx_dropped
, htonll(ops
->stats
.rx_dropped
));
4582 put_32aligned_be64(&ps10
->tx_dropped
, htonll(ops
->stats
.tx_dropped
));
4583 put_32aligned_be64(&ps10
->rx_errors
, htonll(ops
->stats
.rx_errors
));
4584 put_32aligned_be64(&ps10
->tx_errors
, htonll(ops
->stats
.tx_errors
));
4585 put_32aligned_be64(&ps10
->rx_frame_err
, htonll(ops
->stats
.rx_frame_errors
));
4586 put_32aligned_be64(&ps10
->rx_over_err
, htonll(ops
->stats
.rx_over_errors
));
4587 put_32aligned_be64(&ps10
->rx_crc_err
, htonll(ops
->stats
.rx_crc_errors
));
4588 put_32aligned_be64(&ps10
->collisions
, htonll(ops
->stats
.collisions
));
4592 ofputil_port_stats_to_ofp11(const struct ofputil_port_stats
*ops
,
4593 struct ofp11_port_stats
*ps11
)
4595 ps11
->port_no
= ofputil_port_to_ofp11(ops
->port_no
);
4596 memset(ps11
->pad
, 0, sizeof ps11
->pad
);
4597 ps11
->rx_packets
= htonll(ops
->stats
.rx_packets
);
4598 ps11
->tx_packets
= htonll(ops
->stats
.tx_packets
);
4599 ps11
->rx_bytes
= htonll(ops
->stats
.rx_bytes
);
4600 ps11
->tx_bytes
= htonll(ops
->stats
.tx_bytes
);
4601 ps11
->rx_dropped
= htonll(ops
->stats
.rx_dropped
);
4602 ps11
->tx_dropped
= htonll(ops
->stats
.tx_dropped
);
4603 ps11
->rx_errors
= htonll(ops
->stats
.rx_errors
);
4604 ps11
->tx_errors
= htonll(ops
->stats
.tx_errors
);
4605 ps11
->rx_frame_err
= htonll(ops
->stats
.rx_frame_errors
);
4606 ps11
->rx_over_err
= htonll(ops
->stats
.rx_over_errors
);
4607 ps11
->rx_crc_err
= htonll(ops
->stats
.rx_crc_errors
);
4608 ps11
->collisions
= htonll(ops
->stats
.collisions
);
4612 ofputil_port_stats_to_ofp13(const struct ofputil_port_stats
*ops
,
4613 struct ofp13_port_stats
*ps13
)
4615 ofputil_port_stats_to_ofp11(ops
, &ps13
->ps
);
4616 ps13
->duration_sec
= htonl(ops
->duration_sec
);
4617 ps13
->duration_nsec
= htonl(ops
->duration_nsec
);
4621 /* Encode a ports stat for 'ops' and append it to 'replies'. */
4623 ofputil_append_port_stat(struct list
*replies
,
4624 const struct ofputil_port_stats
*ops
)
4626 struct ofpbuf
*msg
= ofpbuf_from_list(list_back(replies
));
4627 struct ofp_header
*oh
= msg
->data
;
4629 switch ((enum ofp_version
)oh
->version
) {
4630 case OFP13_VERSION
: {
4631 struct ofp13_port_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
4632 ofputil_port_stats_to_ofp13(ops
, reply
);
4636 case OFP11_VERSION
: {
4637 struct ofp11_port_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
4638 ofputil_port_stats_to_ofp11(ops
, reply
);
4642 case OFP10_VERSION
: {
4643 struct ofp10_port_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
4644 ofputil_port_stats_to_ofp10(ops
, reply
);
4654 ofputil_port_stats_from_ofp10(struct ofputil_port_stats
*ops
,
4655 const struct ofp10_port_stats
*ps10
)
4657 memset(ops
, 0, sizeof *ops
);
4659 ops
->port_no
= u16_to_ofp(ntohs(ps10
->port_no
));
4660 ops
->stats
.rx_packets
= ntohll(get_32aligned_be64(&ps10
->rx_packets
));
4661 ops
->stats
.tx_packets
= ntohll(get_32aligned_be64(&ps10
->tx_packets
));
4662 ops
->stats
.rx_bytes
= ntohll(get_32aligned_be64(&ps10
->rx_bytes
));
4663 ops
->stats
.tx_bytes
= ntohll(get_32aligned_be64(&ps10
->tx_bytes
));
4664 ops
->stats
.rx_dropped
= ntohll(get_32aligned_be64(&ps10
->rx_dropped
));
4665 ops
->stats
.tx_dropped
= ntohll(get_32aligned_be64(&ps10
->tx_dropped
));
4666 ops
->stats
.rx_errors
= ntohll(get_32aligned_be64(&ps10
->rx_errors
));
4667 ops
->stats
.tx_errors
= ntohll(get_32aligned_be64(&ps10
->tx_errors
));
4668 ops
->stats
.rx_frame_errors
=
4669 ntohll(get_32aligned_be64(&ps10
->rx_frame_err
));
4670 ops
->stats
.rx_over_errors
= ntohll(get_32aligned_be64(&ps10
->rx_over_err
));
4671 ops
->stats
.rx_crc_errors
= ntohll(get_32aligned_be64(&ps10
->rx_crc_err
));
4672 ops
->stats
.collisions
= ntohll(get_32aligned_be64(&ps10
->collisions
));
4673 ops
->duration_sec
= ops
->duration_nsec
= UINT32_MAX
;
4679 ofputil_port_stats_from_ofp11(struct ofputil_port_stats
*ops
,
4680 const struct ofp11_port_stats
*ps11
)
4684 memset(ops
, 0, sizeof *ops
);
4685 error
= ofputil_port_from_ofp11(ps11
->port_no
, &ops
->port_no
);
4690 ops
->stats
.rx_packets
= ntohll(ps11
->rx_packets
);
4691 ops
->stats
.tx_packets
= ntohll(ps11
->tx_packets
);
4692 ops
->stats
.rx_bytes
= ntohll(ps11
->rx_bytes
);
4693 ops
->stats
.tx_bytes
= ntohll(ps11
->tx_bytes
);
4694 ops
->stats
.rx_dropped
= ntohll(ps11
->rx_dropped
);
4695 ops
->stats
.tx_dropped
= ntohll(ps11
->tx_dropped
);
4696 ops
->stats
.rx_errors
= ntohll(ps11
->rx_errors
);
4697 ops
->stats
.tx_errors
= ntohll(ps11
->tx_errors
);
4698 ops
->stats
.rx_frame_errors
= ntohll(ps11
->rx_frame_err
);
4699 ops
->stats
.rx_over_errors
= ntohll(ps11
->rx_over_err
);
4700 ops
->stats
.rx_crc_errors
= ntohll(ps11
->rx_crc_err
);
4701 ops
->stats
.collisions
= ntohll(ps11
->collisions
);
4702 ops
->duration_sec
= ops
->duration_nsec
= UINT32_MAX
;
4708 ofputil_port_stats_from_ofp13(struct ofputil_port_stats
*ops
,
4709 const struct ofp13_port_stats
*ps13
)
4711 enum ofperr error
= ofputil_port_stats_from_ofp11(ops
, &ps13
->ps
);
4713 ops
->duration_sec
= ntohl(ps13
->duration_sec
);
4714 ops
->duration_nsec
= ntohl(ps13
->duration_nsec
);
4720 /* Returns the number of port stats elements in OFPTYPE_PORT_STATS_REPLY
4723 ofputil_count_port_stats(const struct ofp_header
*oh
)
4727 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
4728 ofpraw_pull_assert(&b
);
4730 BUILD_ASSERT(sizeof(struct ofp10_port_stats
) ==
4731 sizeof(struct ofp11_port_stats
));
4732 return b
.size
/ sizeof(struct ofp10_port_stats
);
4735 /* Converts an OFPST_PORT_STATS reply in 'msg' into an abstract
4736 * ofputil_port_stats in 'ps'.
4738 * Multiple OFPST_PORT_STATS replies can be packed into a single OpenFlow
4739 * message. Calling this function multiple times for a single 'msg' iterates
4740 * through the replies. The caller must initially leave 'msg''s layer pointers
4741 * null and not modify them between calls.
4743 * Returns 0 if successful, EOF if no replies were left in this 'msg',
4744 * otherwise a positive errno value. */
4746 ofputil_decode_port_stats(struct ofputil_port_stats
*ps
, struct ofpbuf
*msg
)
4752 ? ofpraw_decode(&raw
, msg
->l2
)
4753 : ofpraw_pull(&raw
, msg
));
4760 } else if (raw
== OFPRAW_OFPST13_PORT_REPLY
) {
4761 const struct ofp13_port_stats
*ps13
;
4763 ps13
= ofpbuf_try_pull(msg
, sizeof *ps13
);
4767 return ofputil_port_stats_from_ofp13(ps
, ps13
);
4768 } else if (raw
== OFPRAW_OFPST11_PORT_REPLY
) {
4769 const struct ofp11_port_stats
*ps11
;
4771 ps11
= ofpbuf_try_pull(msg
, sizeof *ps11
);
4775 return ofputil_port_stats_from_ofp11(ps
, ps11
);
4776 } else if (raw
== OFPRAW_OFPST10_PORT_REPLY
) {
4777 const struct ofp10_port_stats
*ps10
;
4779 ps10
= ofpbuf_try_pull(msg
, sizeof *ps10
);
4783 return ofputil_port_stats_from_ofp10(ps
, ps10
);
4789 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_PORT reply has %zu leftover "
4790 "bytes at end", msg
->size
);
4791 return OFPERR_OFPBRC_BAD_LEN
;
4794 /* Parse a port status request message into a 16 bit OpenFlow 1.0
4795 * port number and stores the latter in '*ofp10_port'.
4796 * Returns 0 if successful, otherwise an OFPERR_* number. */
4798 ofputil_decode_port_stats_request(const struct ofp_header
*request
,
4799 ofp_port_t
*ofp10_port
)
4801 switch ((enum ofp_version
)request
->version
) {
4804 case OFP11_VERSION
: {
4805 const struct ofp11_port_stats_request
*psr11
= ofpmsg_body(request
);
4806 return ofputil_port_from_ofp11(psr11
->port_no
, ofp10_port
);
4809 case OFP10_VERSION
: {
4810 const struct ofp10_port_stats_request
*psr10
= ofpmsg_body(request
);
4811 *ofp10_port
= u16_to_ofp(ntohs(psr10
->port_no
));
4820 /* Parse a queue status request message into 'oqsr'.
4821 * Returns 0 if successful, otherwise an OFPERR_* number. */
4823 ofputil_decode_queue_stats_request(const struct ofp_header
*request
,
4824 struct ofputil_queue_stats_request
*oqsr
)
4826 switch ((enum ofp_version
)request
->version
) {
4829 case OFP11_VERSION
: {
4830 const struct ofp11_queue_stats_request
*qsr11
= ofpmsg_body(request
);
4831 oqsr
->queue_id
= ntohl(qsr11
->queue_id
);
4832 return ofputil_port_from_ofp11(qsr11
->port_no
, &oqsr
->port_no
);
4835 case OFP10_VERSION
: {
4836 const struct ofp10_queue_stats_request
*qsr10
= ofpmsg_body(request
);
4837 oqsr
->queue_id
= ntohl(qsr10
->queue_id
);
4838 oqsr
->port_no
= u16_to_ofp(ntohs(qsr10
->port_no
));
4839 /* OF 1.0 uses OFPP_ALL for OFPP_ANY */
4840 if (oqsr
->port_no
== OFPP_ALL
) {
4841 oqsr
->port_no
= OFPP_ANY
;
4851 /* Encode a queue statsrequest for 'oqsr', the encoded message
4852 * will be fore Open Flow version 'ofp_version'. Returns message
4853 * as a struct ofpbuf. Returns encoded message on success, NULL on error */
4855 ofputil_encode_queue_stats_request(enum ofp_version ofp_version
,
4856 const struct ofputil_queue_stats_request
*oqsr
)
4858 struct ofpbuf
*request
;
4860 switch (ofp_version
) {
4863 case OFP13_VERSION
: {
4864 struct ofp11_queue_stats_request
*req
;
4865 request
= ofpraw_alloc(OFPRAW_OFPST11_QUEUE_REQUEST
, ofp_version
, 0);
4866 req
= ofpbuf_put_zeros(request
, sizeof *req
);
4867 req
->port_no
= ofputil_port_to_ofp11(oqsr
->port_no
);
4868 req
->queue_id
= htonl(oqsr
->queue_id
);
4871 case OFP10_VERSION
: {
4872 struct ofp10_queue_stats_request
*req
;
4873 request
= ofpraw_alloc(OFPRAW_OFPST10_QUEUE_REQUEST
, ofp_version
, 0);
4874 req
= ofpbuf_put_zeros(request
, sizeof *req
);
4875 /* OpenFlow 1.0 needs OFPP_ALL instead of OFPP_ANY */
4876 req
->port_no
= htons(ofp_to_u16(oqsr
->port_no
== OFPP_ANY
4877 ? OFPP_ALL
: oqsr
->port_no
));
4878 req
->queue_id
= htonl(oqsr
->queue_id
);
4888 /* Returns the number of queue stats elements in OFPTYPE_QUEUE_STATS_REPLY
4891 ofputil_count_queue_stats(const struct ofp_header
*oh
)
4895 ofpbuf_use_const(&b
, oh
, ntohs(oh
->length
));
4896 ofpraw_pull_assert(&b
);
4898 BUILD_ASSERT(sizeof(struct ofp10_queue_stats
) ==
4899 sizeof(struct ofp11_queue_stats
));
4900 return b
.size
/ sizeof(struct ofp10_queue_stats
);
4904 ofputil_queue_stats_from_ofp10(struct ofputil_queue_stats
*oqs
,
4905 const struct ofp10_queue_stats
*qs10
)
4907 oqs
->port_no
= u16_to_ofp(ntohs(qs10
->port_no
));
4908 oqs
->queue_id
= ntohl(qs10
->queue_id
);
4909 oqs
->stats
.tx_bytes
= ntohll(get_32aligned_be64(&qs10
->tx_bytes
));
4910 oqs
->stats
.tx_packets
= ntohll(get_32aligned_be64(&qs10
->tx_packets
));
4911 oqs
->stats
.tx_errors
= ntohll(get_32aligned_be64(&qs10
->tx_errors
));
4917 ofputil_queue_stats_from_ofp11(struct ofputil_queue_stats
*oqs
,
4918 const struct ofp11_queue_stats
*qs11
)
4922 error
= ofputil_port_from_ofp11(qs11
->port_no
, &oqs
->port_no
);
4927 oqs
->queue_id
= ntohl(qs11
->queue_id
);
4928 oqs
->stats
.tx_bytes
= ntohll(qs11
->tx_bytes
);
4929 oqs
->stats
.tx_packets
= ntohll(qs11
->tx_packets
);
4930 oqs
->stats
.tx_errors
= ntohll(qs11
->tx_errors
);
4936 ofputil_queue_stats_from_ofp13(struct ofputil_queue_stats
*oqs
,
4937 const struct ofp13_queue_stats
*qs13
)
4940 = ofputil_queue_stats_from_ofp11(oqs
, &qs13
->qs
);
4942 /* FIXME: Get qs13->duration_sec and qs13->duration_nsec,
4943 * Add to netdev_queue_stats? */
4949 /* Converts an OFPST_QUEUE_STATS reply in 'msg' into an abstract
4950 * ofputil_queue_stats in 'qs'.
4952 * Multiple OFPST_QUEUE_STATS replies can be packed into a single OpenFlow
4953 * message. Calling this function multiple times for a single 'msg' iterates
4954 * through the replies. The caller must initially leave 'msg''s layer pointers
4955 * null and not modify them between calls.
4957 * Returns 0 if successful, EOF if no replies were left in this 'msg',
4958 * otherwise a positive errno value. */
4960 ofputil_decode_queue_stats(struct ofputil_queue_stats
*qs
, struct ofpbuf
*msg
)
4966 ? ofpraw_decode(&raw
, msg
->l2
)
4967 : ofpraw_pull(&raw
, msg
));
4974 } else if (raw
== OFPRAW_OFPST13_QUEUE_REPLY
) {
4975 const struct ofp13_queue_stats
*qs13
;
4977 qs13
= ofpbuf_try_pull(msg
, sizeof *qs13
);
4981 return ofputil_queue_stats_from_ofp13(qs
, qs13
);
4982 } else if (raw
== OFPRAW_OFPST11_QUEUE_REPLY
) {
4983 const struct ofp11_queue_stats
*qs11
;
4985 qs11
= ofpbuf_try_pull(msg
, sizeof *qs11
);
4989 return ofputil_queue_stats_from_ofp11(qs
, qs11
);
4990 } else if (raw
== OFPRAW_OFPST10_QUEUE_REPLY
) {
4991 const struct ofp10_queue_stats
*qs10
;
4993 qs10
= ofpbuf_try_pull(msg
, sizeof *qs10
);
4997 return ofputil_queue_stats_from_ofp10(qs
, qs10
);
5003 VLOG_WARN_RL(&bad_ofmsg_rl
, "OFPST_QUEUE reply has %zu leftover "
5004 "bytes at end", msg
->size
);
5005 return OFPERR_OFPBRC_BAD_LEN
;
5009 ofputil_queue_stats_to_ofp10(const struct ofputil_queue_stats
*oqs
,
5010 struct ofp10_queue_stats
*qs10
)
5012 qs10
->port_no
= htons(ofp_to_u16(oqs
->port_no
));
5013 memset(qs10
->pad
, 0, sizeof qs10
->pad
);
5014 qs10
->queue_id
= htonl(oqs
->queue_id
);
5015 put_32aligned_be64(&qs10
->tx_bytes
, htonll(oqs
->stats
.tx_bytes
));
5016 put_32aligned_be64(&qs10
->tx_packets
, htonll(oqs
->stats
.tx_packets
));
5017 put_32aligned_be64(&qs10
->tx_errors
, htonll(oqs
->stats
.tx_errors
));
5021 ofputil_queue_stats_to_ofp11(const struct ofputil_queue_stats
*oqs
,
5022 struct ofp11_queue_stats
*qs11
)
5024 qs11
->port_no
= ofputil_port_to_ofp11(oqs
->port_no
);
5025 qs11
->queue_id
= htonl(oqs
->queue_id
);
5026 qs11
->tx_bytes
= htonll(oqs
->stats
.tx_bytes
);
5027 qs11
->tx_packets
= htonll(oqs
->stats
.tx_packets
);
5028 qs11
->tx_errors
= htonll(oqs
->stats
.tx_errors
);
5032 ofputil_queue_stats_to_ofp13(const struct ofputil_queue_stats
*oqs
,
5033 struct ofp13_queue_stats
*qs13
)
5035 ofputil_queue_stats_to_ofp11(oqs
, &qs13
->qs
);
5036 /* OF 1.3 adds duration fields */
5037 /* FIXME: Need to implement queue alive duration (sec + nsec) */
5038 qs13
->duration_sec
= htonl(~0);
5039 qs13
->duration_nsec
= htonl(~0);
5042 /* Encode a queue stat for 'oqs' and append it to 'replies'. */
5044 ofputil_append_queue_stat(struct list
*replies
,
5045 const struct ofputil_queue_stats
*oqs
)
5047 struct ofpbuf
*msg
= ofpbuf_from_list(list_back(replies
));
5048 struct ofp_header
*oh
= msg
->data
;
5050 switch ((enum ofp_version
)oh
->version
) {
5051 case OFP13_VERSION
: {
5052 struct ofp13_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
5053 ofputil_queue_stats_to_ofp13(oqs
, reply
);
5058 case OFP11_VERSION
: {
5059 struct ofp11_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
5060 ofputil_queue_stats_to_ofp11(oqs
, reply
);
5064 case OFP10_VERSION
: {
5065 struct ofp10_queue_stats
*reply
= ofpmp_append(replies
, sizeof *reply
);
5066 ofputil_queue_stats_to_ofp10(oqs
, reply
);