2 * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 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.
20 #include "byte-order.h"
21 #include "dynamic-string.h"
24 #include "tun-metadata.h"
26 /* Converts the flow in 'flow' into a match in 'match', with the given
29 match_init(struct match *match,
30 const struct flow *flow, const struct flow_wildcards *wc)
34 match_zero_wildcarded_fields(match);
35 memset(&match->tun_md, 0, sizeof match->tun_md);
38 /* Converts a flow into a match. It sets the wildcard masks based on
39 * the packet contents. It will not set the mask for fields that do not
40 * make sense for the packet type. */
42 match_wc_init(struct match *match, const struct flow *flow)
46 flow_wildcards_init_for_packet(&match->wc, flow);
47 WC_MASK_FIELD(&match->wc, regs);
48 WC_MASK_FIELD(&match->wc, metadata);
50 memset(&match->tun_md, 0, sizeof match->tun_md);
53 /* Initializes 'match' as a "catch-all" match that matches every packet. */
55 match_init_catchall(struct match *match)
57 memset(&match->flow, 0, sizeof match->flow);
58 flow_wildcards_init_catchall(&match->wc);
59 memset(&match->tun_md, 0, sizeof match->tun_md);
62 /* For each bit or field wildcarded in 'match', sets the corresponding bit or
63 * field in 'flow' to all-0-bits. It is important to maintain this invariant
64 * in a match that might be inserted into a classifier.
66 * It is never necessary to call this function directly for a match that is
67 * initialized or modified only by match_*() functions. It is useful to
68 * restore the invariant in a match whose 'wc' member is modified by hand.
71 match_zero_wildcarded_fields(struct match *match)
73 flow_zero_wildcards(&match->flow, &match->wc);
77 match_set_dp_hash(struct match *match, uint32_t value)
79 match_set_dp_hash_masked(match, value, UINT32_MAX);
83 match_set_dp_hash_masked(struct match *match, uint32_t value, uint32_t mask)
85 match->wc.masks.dp_hash = mask;
86 match->flow.dp_hash = value & mask;
90 match_set_recirc_id(struct match *match, uint32_t value)
92 match->flow.recirc_id = value;
93 match->wc.masks.recirc_id = UINT32_MAX;
97 match_set_conj_id(struct match *match, uint32_t value)
99 match->flow.conj_id = value;
100 match->wc.masks.conj_id = UINT32_MAX;
104 match_set_reg(struct match *match, unsigned int reg_idx, uint32_t value)
106 match_set_reg_masked(match, reg_idx, value, UINT32_MAX);
110 match_set_reg_masked(struct match *match, unsigned int reg_idx,
111 uint32_t value, uint32_t mask)
113 ovs_assert(reg_idx < FLOW_N_REGS);
114 flow_wildcards_set_reg_mask(&match->wc, reg_idx, mask);
115 match->flow.regs[reg_idx] = value & mask;
119 match_set_xreg(struct match *match, unsigned int xreg_idx, uint64_t value)
121 match_set_xreg_masked(match, xreg_idx, value, UINT64_MAX);
125 match_set_xreg_masked(struct match *match, unsigned int xreg_idx,
126 uint64_t value, uint64_t mask)
128 ovs_assert(xreg_idx < FLOW_N_XREGS);
129 flow_wildcards_set_xreg_mask(&match->wc, xreg_idx, mask);
130 flow_set_xreg(&match->flow, xreg_idx, value & mask);
134 match_set_actset_output(struct match *match, ofp_port_t actset_output)
136 match->wc.masks.actset_output = u16_to_ofp(UINT16_MAX);
137 match->flow.actset_output = actset_output;
141 match_set_metadata(struct match *match, ovs_be64 metadata)
143 match_set_metadata_masked(match, metadata, OVS_BE64_MAX);
147 match_set_metadata_masked(struct match *match,
148 ovs_be64 metadata, ovs_be64 mask)
150 match->wc.masks.metadata = mask;
151 match->flow.metadata = metadata & mask;
155 match_set_tun_id(struct match *match, ovs_be64 tun_id)
157 match_set_tun_id_masked(match, tun_id, OVS_BE64_MAX);
161 match_set_tun_id_masked(struct match *match, ovs_be64 tun_id, ovs_be64 mask)
163 match->wc.masks.tunnel.tun_id = mask;
164 match->flow.tunnel.tun_id = tun_id & mask;
168 match_set_tun_src(struct match *match, ovs_be32 src)
170 match_set_tun_src_masked(match, src, OVS_BE32_MAX);
174 match_set_tun_src_masked(struct match *match, ovs_be32 src, ovs_be32 mask)
176 match->wc.masks.tunnel.ip_src = mask;
177 match->flow.tunnel.ip_src = src & mask;
181 match_set_tun_dst(struct match *match, ovs_be32 dst)
183 match_set_tun_dst_masked(match, dst, OVS_BE32_MAX);
187 match_set_tun_dst_masked(struct match *match, ovs_be32 dst, ovs_be32 mask)
189 match->wc.masks.tunnel.ip_dst = mask;
190 match->flow.tunnel.ip_dst = dst & mask;
194 match_set_tun_ipv6_src(struct match *match, const struct in6_addr *src)
196 match->flow.tunnel.ipv6_src = *src;
197 match->wc.masks.tunnel.ipv6_src = in6addr_exact;
201 match_set_tun_ipv6_src_masked(struct match *match, const struct in6_addr *src,
202 const struct in6_addr *mask)
204 match->flow.tunnel.ipv6_src = ipv6_addr_bitand(src, mask);
205 match->wc.masks.tunnel.ipv6_src = *mask;
209 match_set_tun_ipv6_dst(struct match *match, const struct in6_addr *dst)
211 match->flow.tunnel.ipv6_dst = *dst;
212 match->wc.masks.tunnel.ipv6_dst = in6addr_exact;
216 match_set_tun_ipv6_dst_masked(struct match *match, const struct in6_addr *dst,
217 const struct in6_addr *mask)
219 match->flow.tunnel.ipv6_dst = ipv6_addr_bitand(dst, mask);
220 match->wc.masks.tunnel.ipv6_dst = *mask;
224 match_set_tun_ttl(struct match *match, uint8_t ttl)
226 match_set_tun_ttl_masked(match, ttl, UINT8_MAX);
230 match_set_tun_ttl_masked(struct match *match, uint8_t ttl, uint8_t mask)
232 match->wc.masks.tunnel.ip_ttl = mask;
233 match->flow.tunnel.ip_ttl = ttl & mask;
237 match_set_tun_tos(struct match *match, uint8_t tos)
239 match_set_tun_tos_masked(match, tos, UINT8_MAX);
243 match_set_tun_tos_masked(struct match *match, uint8_t tos, uint8_t mask)
245 match->wc.masks.tunnel.ip_tos = mask;
246 match->flow.tunnel.ip_tos = tos & mask;
250 match_set_tun_flags(struct match *match, uint16_t flags)
252 match_set_tun_flags_masked(match, flags, UINT16_MAX);
256 match_set_tun_flags_masked(struct match *match, uint16_t flags, uint16_t mask)
258 mask &= FLOW_TNL_PUB_F_MASK;
260 match->wc.masks.tunnel.flags = mask;
261 match->flow.tunnel.flags = flags & mask;
265 match_set_tun_gbp_id_masked(struct match *match, ovs_be16 gbp_id, ovs_be16 mask)
267 match->wc.masks.tunnel.gbp_id = mask;
268 match->flow.tunnel.gbp_id = gbp_id & mask;
272 match_set_tun_gbp_id(struct match *match, ovs_be16 gbp_id)
274 match_set_tun_gbp_id_masked(match, gbp_id, OVS_BE16_MAX);
278 match_set_tun_gbp_flags_masked(struct match *match, uint8_t flags, uint8_t mask)
280 match->wc.masks.tunnel.gbp_flags = mask;
281 match->flow.tunnel.gbp_flags = flags & mask;
285 match_set_tun_gbp_flags(struct match *match, uint8_t flags)
287 match_set_tun_gbp_flags_masked(match, flags, UINT8_MAX);
291 match_set_in_port(struct match *match, ofp_port_t ofp_port)
293 match->wc.masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX);
294 match->flow.in_port.ofp_port = ofp_port;
298 match_set_skb_priority(struct match *match, uint32_t skb_priority)
300 match->wc.masks.skb_priority = UINT32_MAX;
301 match->flow.skb_priority = skb_priority;
305 match_set_pkt_mark(struct match *match, uint32_t pkt_mark)
307 match_set_pkt_mark_masked(match, pkt_mark, UINT32_MAX);
311 match_set_pkt_mark_masked(struct match *match, uint32_t pkt_mark, uint32_t mask)
313 match->flow.pkt_mark = pkt_mark & mask;
314 match->wc.masks.pkt_mark = mask;
318 match_set_ct_state(struct match *match, uint32_t ct_state)
320 match_set_ct_state_masked(match, ct_state, UINT32_MAX);
324 match_set_ct_state_masked(struct match *match, uint32_t ct_state, uint32_t mask)
326 match->flow.ct_state = ct_state & mask & UINT16_MAX;
327 match->wc.masks.ct_state = mask & UINT16_MAX;
331 match_set_ct_zone(struct match *match, uint16_t ct_zone)
333 match->flow.ct_zone = ct_zone;
334 match->wc.masks.ct_zone = UINT16_MAX;
338 match_set_ct_mark(struct match *match, uint32_t ct_mark)
340 match_set_ct_mark_masked(match, ct_mark, UINT32_MAX);
344 match_set_ct_mark_masked(struct match *match, uint32_t ct_mark,
347 match->flow.ct_mark = ct_mark & mask;
348 match->wc.masks.ct_mark = mask;
352 match_set_ct_label(struct match *match, ovs_u128 ct_label)
356 mask.u64.lo = UINT64_MAX;
357 mask.u64.hi = UINT64_MAX;
358 match_set_ct_label_masked(match, ct_label, mask);
362 match_set_ct_label_masked(struct match *match, ovs_u128 value, ovs_u128 mask)
364 match->flow.ct_label.u64.lo = value.u64.lo & mask.u64.lo;
365 match->flow.ct_label.u64.hi = value.u64.hi & mask.u64.hi;
366 match->wc.masks.ct_label = mask;
370 match_set_dl_type(struct match *match, ovs_be16 dl_type)
372 match->wc.masks.dl_type = OVS_BE16_MAX;
373 match->flow.dl_type = dl_type;
376 /* Modifies 'value_src' so that the Ethernet address must match 'value_dst'
377 * exactly. 'mask_dst' is set to all 1s. */
379 set_eth(const struct eth_addr value_src,
380 struct eth_addr *value_dst,
381 struct eth_addr *mask_dst)
383 *value_dst = value_src;
384 *mask_dst = eth_addr_exact;
387 /* Modifies 'value_src' so that the Ethernet address must match 'value_src'
388 * after each byte is ANDed with the appropriate byte in 'mask_src'.
389 * 'mask_dst' is set to 'mask_src' */
391 set_eth_masked(const struct eth_addr value_src,
392 const struct eth_addr mask_src,
393 struct eth_addr *value_dst, struct eth_addr *mask_dst)
397 for (i = 0; i < ARRAY_SIZE(value_dst->be16); i++) {
398 value_dst->be16[i] = value_src.be16[i] & mask_src.be16[i];
400 *mask_dst = mask_src;
403 /* Modifies 'rule' so that the source Ethernet address must match 'dl_src'
406 match_set_dl_src(struct match *match, const struct eth_addr dl_src)
408 set_eth(dl_src, &match->flow.dl_src, &match->wc.masks.dl_src);
411 /* Modifies 'rule' so that the source Ethernet address must match 'dl_src'
412 * after each byte is ANDed with the appropriate byte in 'mask'. */
414 match_set_dl_src_masked(struct match *match,
415 const struct eth_addr dl_src,
416 const struct eth_addr mask)
418 set_eth_masked(dl_src, mask, &match->flow.dl_src, &match->wc.masks.dl_src);
421 /* Modifies 'match' so that the Ethernet address must match 'dl_dst'
424 match_set_dl_dst(struct match *match, const struct eth_addr dl_dst)
426 set_eth(dl_dst, &match->flow.dl_dst, &match->wc.masks.dl_dst);
429 /* Modifies 'match' so that the Ethernet address must match 'dl_dst' after each
430 * byte is ANDed with the appropriate byte in 'mask'.
432 * This function will assert-fail if 'mask' is invalid. Only 'mask' values
433 * accepted by flow_wildcards_is_dl_dst_mask_valid() are allowed. */
435 match_set_dl_dst_masked(struct match *match,
436 const struct eth_addr dl_dst,
437 const struct eth_addr mask)
439 set_eth_masked(dl_dst, mask, &match->flow.dl_dst, &match->wc.masks.dl_dst);
443 match_set_dl_tci(struct match *match, ovs_be16 tci)
445 match_set_dl_tci_masked(match, tci, htons(0xffff));
449 match_set_dl_tci_masked(struct match *match, ovs_be16 tci, ovs_be16 mask)
451 match->flow.vlan_tci = tci & mask;
452 match->wc.masks.vlan_tci = mask;
455 /* Modifies 'match' so that the VLAN VID is wildcarded. If the PCP is already
456 * wildcarded, then 'match' will match a packet regardless of whether it has an
457 * 802.1Q header or not. */
459 match_set_any_vid(struct match *match)
461 if (match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK)) {
462 match->wc.masks.vlan_tci &= ~htons(VLAN_VID_MASK);
463 match->flow.vlan_tci &= ~htons(VLAN_VID_MASK);
465 match_set_dl_tci_masked(match, htons(0), htons(0));
469 /* Modifies 'match' depending on 'dl_vlan':
471 * - If 'dl_vlan' is htons(OFP_VLAN_NONE), makes 'match' match only packets
472 * without an 802.1Q header.
474 * - Otherwise, makes 'match' match only packets with an 802.1Q header whose
475 * VID equals the low 12 bits of 'dl_vlan'.
478 match_set_dl_vlan(struct match *match, ovs_be16 dl_vlan)
480 flow_set_dl_vlan(&match->flow, dl_vlan);
481 if (dl_vlan == htons(OFP10_VLAN_NONE)) {
482 match->wc.masks.vlan_tci = OVS_BE16_MAX;
484 match->wc.masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
488 /* Sets the VLAN VID that 'match' matches to 'vid', which is interpreted as an
489 * OpenFlow 1.2 "vlan_vid" value, that is, the low 13 bits of 'vlan_tci' (VID
492 match_set_vlan_vid(struct match *match, ovs_be16 vid)
494 match_set_vlan_vid_masked(match, vid, htons(VLAN_VID_MASK | VLAN_CFI));
498 /* Sets the VLAN VID that 'flow' matches to 'vid', which is interpreted as an
499 * OpenFlow 1.2 "vlan_vid" value, that is, the low 13 bits of 'vlan_tci' (VID
500 * plus CFI), with the corresponding 'mask'. */
502 match_set_vlan_vid_masked(struct match *match, ovs_be16 vid, ovs_be16 mask)
504 ovs_be16 pcp_mask = htons(VLAN_PCP_MASK);
505 ovs_be16 vid_mask = htons(VLAN_VID_MASK | VLAN_CFI);
508 flow_set_vlan_vid(&match->flow, vid & mask);
509 match->wc.masks.vlan_tci = mask | (match->wc.masks.vlan_tci & pcp_mask);
512 /* Modifies 'match' so that the VLAN PCP is wildcarded. If the VID is already
513 * wildcarded, then 'match' will match a packet regardless of whether it has an
514 * 802.1Q header or not. */
516 match_set_any_pcp(struct match *match)
518 if (match->wc.masks.vlan_tci & htons(VLAN_VID_MASK)) {
519 match->wc.masks.vlan_tci &= ~htons(VLAN_PCP_MASK);
520 match->flow.vlan_tci &= ~htons(VLAN_PCP_MASK);
522 match_set_dl_tci_masked(match, htons(0), htons(0));
526 /* Modifies 'match' so that it matches only packets with an 802.1Q header whose
527 * PCP equals the low 3 bits of 'dl_vlan_pcp'. */
529 match_set_dl_vlan_pcp(struct match *match, uint8_t dl_vlan_pcp)
531 flow_set_vlan_pcp(&match->flow, dl_vlan_pcp);
532 match->wc.masks.vlan_tci |= htons(VLAN_CFI | VLAN_PCP_MASK);
535 /* Modifies 'match' so that the MPLS label 'idx' matches 'lse' exactly. */
537 match_set_mpls_lse(struct match *match, int idx, ovs_be32 lse)
539 match->wc.masks.mpls_lse[idx] = OVS_BE32_MAX;
540 match->flow.mpls_lse[idx] = lse;
543 /* Modifies 'match' so that the MPLS label is wildcarded. */
545 match_set_any_mpls_label(struct match *match, int idx)
547 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_LABEL_MASK);
548 flow_set_mpls_label(&match->flow, idx, htonl(0));
551 /* Modifies 'match' so that it matches only packets with an MPLS header whose
552 * label equals the low 20 bits of 'mpls_label'. */
554 match_set_mpls_label(struct match *match, int idx, ovs_be32 mpls_label)
556 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_LABEL_MASK);
557 flow_set_mpls_label(&match->flow, idx, mpls_label);
560 /* Modifies 'match' so that the MPLS TC is wildcarded. */
562 match_set_any_mpls_tc(struct match *match, int idx)
564 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_TC_MASK);
565 flow_set_mpls_tc(&match->flow, idx, 0);
568 /* Modifies 'match' so that it matches only packets with an MPLS header whose
569 * Traffic Class equals the low 3 bits of 'mpls_tc'. */
571 match_set_mpls_tc(struct match *match, int idx, uint8_t mpls_tc)
573 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_TC_MASK);
574 flow_set_mpls_tc(&match->flow, idx, mpls_tc);
577 /* Modifies 'match' so that the MPLS stack flag is wildcarded. */
579 match_set_any_mpls_bos(struct match *match, int idx)
581 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_BOS_MASK);
582 flow_set_mpls_bos(&match->flow, idx, 0);
585 /* Modifies 'match' so that it matches only packets with an MPLS header whose
586 * Stack Flag equals the lower bit of 'mpls_bos' */
588 match_set_mpls_bos(struct match *match, int idx, uint8_t mpls_bos)
590 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_BOS_MASK);
591 flow_set_mpls_bos(&match->flow, idx, mpls_bos);
594 /* Modifies 'match' so that the TTL of MPLS label 'idx' is wildcarded. */
596 match_set_any_mpls_ttl(struct match *match, int idx)
598 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_TTL_MASK);
599 flow_set_mpls_ttl(&match->flow, idx, 0);
602 /* Modifies 'match' so that it matches only packets in which the TTL of MPLS
603 * label 'idx' equals 'mpls_ttl'. */
605 match_set_mpls_ttl(struct match *match, int idx, uint8_t mpls_ttl)
607 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_TTL_MASK);
608 flow_set_mpls_ttl(&match->flow, idx, mpls_ttl);
611 /* Modifies 'match' so that the MPLS LSE is wildcarded. */
613 match_set_any_mpls_lse(struct match *match, int idx)
615 match->wc.masks.mpls_lse[idx] = htonl(0);
616 flow_set_mpls_lse(&match->flow, idx, htonl(0));
620 match_set_tp_src(struct match *match, ovs_be16 tp_src)
622 match_set_tp_src_masked(match, tp_src, OVS_BE16_MAX);
626 match_set_tp_src_masked(struct match *match, ovs_be16 port, ovs_be16 mask)
628 match->flow.tp_src = port & mask;
629 match->wc.masks.tp_src = mask;
633 match_set_tp_dst(struct match *match, ovs_be16 tp_dst)
635 match_set_tp_dst_masked(match, tp_dst, OVS_BE16_MAX);
639 match_set_tp_dst_masked(struct match *match, ovs_be16 port, ovs_be16 mask)
641 match->flow.tp_dst = port & mask;
642 match->wc.masks.tp_dst = mask;
646 match_set_tcp_flags(struct match *match, ovs_be16 flags)
648 match_set_tcp_flags_masked(match, flags, OVS_BE16_MAX);
652 match_set_tcp_flags_masked(struct match *match, ovs_be16 flags, ovs_be16 mask)
654 match->flow.tcp_flags = flags & mask;
655 match->wc.masks.tcp_flags = mask;
659 match_set_nw_proto(struct match *match, uint8_t nw_proto)
661 match->flow.nw_proto = nw_proto;
662 match->wc.masks.nw_proto = UINT8_MAX;
666 match_set_nw_src(struct match *match, ovs_be32 nw_src)
668 match->flow.nw_src = nw_src;
669 match->wc.masks.nw_src = OVS_BE32_MAX;
673 match_set_nw_src_masked(struct match *match,
674 ovs_be32 nw_src, ovs_be32 mask)
676 match->flow.nw_src = nw_src & mask;
677 match->wc.masks.nw_src = mask;
681 match_set_nw_dst(struct match *match, ovs_be32 nw_dst)
683 match->flow.nw_dst = nw_dst;
684 match->wc.masks.nw_dst = OVS_BE32_MAX;
688 match_set_nw_dst_masked(struct match *match, ovs_be32 ip, ovs_be32 mask)
690 match->flow.nw_dst = ip & mask;
691 match->wc.masks.nw_dst = mask;
695 match_set_nw_dscp(struct match *match, uint8_t nw_dscp)
697 match->wc.masks.nw_tos |= IP_DSCP_MASK;
698 match->flow.nw_tos &= ~IP_DSCP_MASK;
699 match->flow.nw_tos |= nw_dscp & IP_DSCP_MASK;
703 match_set_nw_ecn(struct match *match, uint8_t nw_ecn)
705 match->wc.masks.nw_tos |= IP_ECN_MASK;
706 match->flow.nw_tos &= ~IP_ECN_MASK;
707 match->flow.nw_tos |= nw_ecn & IP_ECN_MASK;
711 match_set_nw_ttl(struct match *match, uint8_t nw_ttl)
713 match->wc.masks.nw_ttl = UINT8_MAX;
714 match->flow.nw_ttl = nw_ttl;
718 match_set_nw_frag(struct match *match, uint8_t nw_frag)
720 match->wc.masks.nw_frag |= FLOW_NW_FRAG_MASK;
721 match->flow.nw_frag = nw_frag;
725 match_set_nw_frag_masked(struct match *match,
726 uint8_t nw_frag, uint8_t mask)
728 match->flow.nw_frag = nw_frag & mask;
729 match->wc.masks.nw_frag = mask;
733 match_set_icmp_type(struct match *match, uint8_t icmp_type)
735 match_set_tp_src(match, htons(icmp_type));
739 match_set_icmp_code(struct match *match, uint8_t icmp_code)
741 match_set_tp_dst(match, htons(icmp_code));
745 match_set_arp_sha(struct match *match, const struct eth_addr sha)
747 match->flow.arp_sha = sha;
748 match->wc.masks.arp_sha = eth_addr_exact;
752 match_set_arp_sha_masked(struct match *match,
753 const struct eth_addr arp_sha,
754 const struct eth_addr mask)
756 set_eth_masked(arp_sha, mask,
757 &match->flow.arp_sha, &match->wc.masks.arp_sha);
761 match_set_arp_tha(struct match *match, const struct eth_addr tha)
763 match->flow.arp_tha = tha;
764 match->wc.masks.arp_tha = eth_addr_exact;
768 match_set_arp_tha_masked(struct match *match,
769 const struct eth_addr arp_tha,
770 const struct eth_addr mask)
772 set_eth_masked(arp_tha, mask,
773 &match->flow.arp_tha, &match->wc.masks.arp_tha);
777 match_set_ipv6_src(struct match *match, const struct in6_addr *src)
779 match->flow.ipv6_src = *src;
780 match->wc.masks.ipv6_src = in6addr_exact;
784 match_set_ipv6_src_masked(struct match *match, const struct in6_addr *src,
785 const struct in6_addr *mask)
787 match->flow.ipv6_src = ipv6_addr_bitand(src, mask);
788 match->wc.masks.ipv6_src = *mask;
792 match_set_ipv6_dst(struct match *match, const struct in6_addr *dst)
794 match->flow.ipv6_dst = *dst;
795 match->wc.masks.ipv6_dst = in6addr_exact;
799 match_set_ipv6_dst_masked(struct match *match, const struct in6_addr *dst,
800 const struct in6_addr *mask)
802 match->flow.ipv6_dst = ipv6_addr_bitand(dst, mask);
803 match->wc.masks.ipv6_dst = *mask;
807 match_set_ipv6_label(struct match *match, ovs_be32 ipv6_label)
809 match->wc.masks.ipv6_label = OVS_BE32_MAX;
810 match->flow.ipv6_label = ipv6_label;
815 match_set_ipv6_label_masked(struct match *match, ovs_be32 ipv6_label,
818 match->flow.ipv6_label = ipv6_label & mask;
819 match->wc.masks.ipv6_label = mask;
823 match_set_nd_target(struct match *match, const struct in6_addr *target)
825 match->flow.nd_target = *target;
826 match->wc.masks.nd_target = in6addr_exact;
830 match_set_nd_target_masked(struct match *match,
831 const struct in6_addr *target,
832 const struct in6_addr *mask)
834 match->flow.nd_target = ipv6_addr_bitand(target, mask);
835 match->wc.masks.nd_target = *mask;
838 /* Returns true if 'a' and 'b' wildcard the same fields and have the same
839 * values for fixed fields, otherwise false. */
841 match_equal(const struct match *a, const struct match *b)
843 return (flow_wildcards_equal(&a->wc, &b->wc)
844 && flow_equal(&a->flow, &b->flow));
847 /* Returns a hash value for the flow and wildcards in 'match', starting from
850 match_hash(const struct match *match, uint32_t basis)
852 return flow_wildcards_hash(&match->wc, flow_hash(&match->flow, basis));
856 match_has_default_recirc_id(const struct match *m)
858 return m->flow.recirc_id == 0 && (m->wc.masks.recirc_id == UINT32_MAX ||
859 m->wc.masks.recirc_id == 0);
863 match_has_default_dp_hash(const struct match *m)
865 return ((m->flow.dp_hash | m->wc.masks.dp_hash) == 0);
868 /* Return true if the hidden fields of the match are set to the default values.
869 * The default values equals to those set up by match_init_hidden_fields(). */
871 match_has_default_hidden_fields(const struct match *m)
873 return match_has_default_recirc_id(m) && match_has_default_dp_hash(m);
877 match_init_hidden_fields(struct match *m)
879 match_set_recirc_id(m, 0);
880 match_set_dp_hash_masked(m, 0, 0);
884 format_eth_masked(struct ds *s, const char *name,
885 const struct eth_addr eth, const struct eth_addr mask)
887 if (!eth_addr_is_zero(mask)) {
888 ds_put_format(s, "%s=", name);
889 eth_format_masked(eth, &mask, s);
895 format_ip_netmask(struct ds *s, const char *name, ovs_be32 ip,
899 ds_put_format(s, "%s=", name);
900 ip_format_masked(ip, netmask, s);
906 format_ipv6_netmask(struct ds *s, const char *name,
907 const struct in6_addr *addr,
908 const struct in6_addr *netmask)
910 if (!ipv6_mask_is_any(netmask)) {
911 ds_put_format(s, "%s=", name);
912 ipv6_format_masked(addr, netmask, s);
918 format_uint16_masked(struct ds *s, const char *name,
919 uint16_t value, uint16_t mask)
922 ds_put_format(s, "%s=", name);
923 if (mask == UINT16_MAX) {
924 ds_put_format(s, "%"PRIu16, value);
926 ds_put_format(s, "0x%"PRIx16"/0x%"PRIx16, value, mask);
933 format_be16_masked(struct ds *s, const char *name,
934 ovs_be16 value, ovs_be16 mask)
936 if (mask != htons(0)) {
937 ds_put_format(s, "%s=", name);
938 if (mask == OVS_BE16_MAX) {
939 ds_put_format(s, "%"PRIu16, ntohs(value));
941 ds_put_format(s, "0x%"PRIx16"/0x%"PRIx16,
942 ntohs(value), ntohs(mask));
949 format_be32_masked(struct ds *s, const char *name,
950 ovs_be32 value, ovs_be32 mask)
952 if (mask != htonl(0)) {
953 ds_put_format(s, "%s=", name);
954 if (mask == OVS_BE32_MAX) {
955 ds_put_format(s, "%"PRIu32, ntohl(value));
957 ds_put_format(s, "0x%"PRIx32"/0x%"PRIx32,
958 ntohl(value), ntohl(mask));
965 format_uint32_masked(struct ds *s, const char *name,
966 uint32_t value, uint32_t mask)
969 ds_put_format(s, "%s=%#"PRIx32, name, value);
970 if (mask != UINT32_MAX) {
971 ds_put_format(s, "/%#"PRIx32, mask);
978 format_be64_masked(struct ds *s, const char *name,
979 ovs_be64 value, ovs_be64 mask)
981 if (mask != htonll(0)) {
982 ds_put_format(s, "%s=%#"PRIx64, name, ntohll(value));
983 if (mask != OVS_BE64_MAX) {
984 ds_put_format(s, "/%#"PRIx64, ntohll(mask));
991 format_flow_tunnel(struct ds *s, const struct match *match)
993 const struct flow_wildcards *wc = &match->wc;
994 const struct flow_tnl *tnl = &match->flow.tunnel;
996 format_be64_masked(s, "tun_id", tnl->tun_id, wc->masks.tunnel.tun_id);
997 format_ip_netmask(s, "tun_src", tnl->ip_src, wc->masks.tunnel.ip_src);
998 format_ip_netmask(s, "tun_dst", tnl->ip_dst, wc->masks.tunnel.ip_dst);
999 format_ipv6_netmask(s, "tun_ipv6_src", &tnl->ipv6_src,
1000 &wc->masks.tunnel.ipv6_src);
1001 format_ipv6_netmask(s, "tun_ipv6_dst", &tnl->ipv6_dst,
1002 &wc->masks.tunnel.ipv6_dst);
1004 if (wc->masks.tunnel.gbp_id) {
1005 format_be16_masked(s, "tun_gbp_id", tnl->gbp_id,
1006 wc->masks.tunnel.gbp_id);
1009 if (wc->masks.tunnel.gbp_flags) {
1010 ds_put_format(s, "tun_gbp_flags=%#"PRIx8",", tnl->gbp_flags);
1013 if (wc->masks.tunnel.ip_tos) {
1014 ds_put_format(s, "tun_tos=%"PRIx8",", tnl->ip_tos);
1016 if (wc->masks.tunnel.ip_ttl) {
1017 ds_put_format(s, "tun_ttl=%"PRIu8",", tnl->ip_ttl);
1019 if (wc->masks.tunnel.flags) {
1020 format_flags_masked(s, "tun_flags", flow_tun_flag_to_string,
1022 wc->masks.tunnel.flags & FLOW_TNL_F_MASK,
1024 ds_put_char(s, ',');
1026 tun_metadata_match_format(s, match);
1030 format_ct_label_masked(struct ds *s, const ovs_u128 *key, const ovs_u128 *mask)
1032 if (!ovs_u128_is_zero(mask)) {
1033 ovs_be128 value = hton128(*key);
1034 ds_put_format(s, "ct_label=");
1035 ds_put_hex(s, &value, sizeof value);
1036 if (!is_all_ones(mask, sizeof(*mask))) {
1037 value = hton128(*mask);
1038 ds_put_char(s, '/');
1039 ds_put_hex(s, &value, sizeof value);
1041 ds_put_char(s, ',');
1045 /* Appends a string representation of 'match' to 's'. If 'priority' is
1046 * different from OFP_DEFAULT_PRIORITY, includes it in 's'. */
1048 match_format(const struct match *match, struct ds *s, int priority)
1050 const struct flow_wildcards *wc = &match->wc;
1051 size_t start_len = s->length;
1052 const struct flow *f = &match->flow;
1053 bool skip_type = false;
1054 bool skip_proto = false;
1058 BUILD_ASSERT_DECL(FLOW_WC_SEQ == 35);
1060 if (priority != OFP_DEFAULT_PRIORITY) {
1061 ds_put_format(s, "priority=%d,", priority);
1064 format_uint32_masked(s, "pkt_mark", f->pkt_mark, wc->masks.pkt_mark);
1066 if (wc->masks.recirc_id) {
1067 format_uint32_masked(s, "recirc_id", f->recirc_id,
1068 wc->masks.recirc_id);
1071 if (wc->masks.dp_hash) {
1072 format_uint32_masked(s, "dp_hash", f->dp_hash,
1076 if (wc->masks.conj_id) {
1077 ds_put_format(s, "conj_id=%"PRIu32",", f->conj_id);
1080 if (wc->masks.skb_priority) {
1081 ds_put_format(s, "skb_priority=%#"PRIx32",", f->skb_priority);
1084 if (wc->masks.actset_output) {
1085 ds_put_cstr(s, "actset_output=");
1086 ofputil_format_port(f->actset_output, s);
1087 ds_put_char(s, ',');
1090 if (wc->masks.ct_state) {
1091 if (wc->masks.ct_state == UINT16_MAX) {
1092 ds_put_cstr(s, "ct_state=");
1094 format_flags(s, ct_state_to_string, f->ct_state, '|');
1096 ds_put_cstr(s, "0"); /* No state. */
1099 format_flags_masked(s, "ct_state", ct_state_to_string,
1100 f->ct_state, wc->masks.ct_state, UINT16_MAX);
1102 ds_put_char(s, ',');
1105 if (wc->masks.ct_zone) {
1106 format_uint16_masked(s, "ct_zone", f->ct_zone, wc->masks.ct_zone);
1109 if (wc->masks.ct_mark) {
1110 format_uint32_masked(s, "ct_mark", f->ct_mark, wc->masks.ct_mark);
1113 if (!ovs_u128_is_zero(&wc->masks.ct_label)) {
1114 format_ct_label_masked(s, &f->ct_label, &wc->masks.ct_label);
1117 if (wc->masks.dl_type) {
1119 if (f->dl_type == htons(ETH_TYPE_IP)) {
1120 if (wc->masks.nw_proto) {
1122 if (f->nw_proto == IPPROTO_ICMP) {
1123 ds_put_cstr(s, "icmp,");
1124 } else if (f->nw_proto == IPPROTO_IGMP) {
1125 ds_put_cstr(s, "igmp,");
1126 } else if (f->nw_proto == IPPROTO_TCP) {
1127 ds_put_cstr(s, "tcp,");
1128 } else if (f->nw_proto == IPPROTO_UDP) {
1129 ds_put_cstr(s, "udp,");
1130 } else if (f->nw_proto == IPPROTO_SCTP) {
1131 ds_put_cstr(s, "sctp,");
1133 ds_put_cstr(s, "ip,");
1137 ds_put_cstr(s, "ip,");
1139 } else if (f->dl_type == htons(ETH_TYPE_IPV6)) {
1140 if (wc->masks.nw_proto) {
1142 if (f->nw_proto == IPPROTO_ICMPV6) {
1143 ds_put_cstr(s, "icmp6,");
1144 } else if (f->nw_proto == IPPROTO_TCP) {
1145 ds_put_cstr(s, "tcp6,");
1146 } else if (f->nw_proto == IPPROTO_UDP) {
1147 ds_put_cstr(s, "udp6,");
1148 } else if (f->nw_proto == IPPROTO_SCTP) {
1149 ds_put_cstr(s, "sctp6,");
1151 ds_put_cstr(s, "ipv6,");
1155 ds_put_cstr(s, "ipv6,");
1157 } else if (f->dl_type == htons(ETH_TYPE_ARP)) {
1158 ds_put_cstr(s, "arp,");
1159 } else if (f->dl_type == htons(ETH_TYPE_RARP)) {
1160 ds_put_cstr(s, "rarp,");
1161 } else if (f->dl_type == htons(ETH_TYPE_MPLS)) {
1162 ds_put_cstr(s, "mpls,");
1163 } else if (f->dl_type == htons(ETH_TYPE_MPLS_MCAST)) {
1164 ds_put_cstr(s, "mplsm,");
1169 for (i = 0; i < FLOW_N_REGS; i++) {
1170 #define REGNAME_LEN 20
1171 char regname[REGNAME_LEN];
1172 if (snprintf(regname, REGNAME_LEN, "reg%d", i) >= REGNAME_LEN) {
1173 strcpy(regname, "reg?");
1175 format_uint32_masked(s, regname, f->regs[i], wc->masks.regs[i]);
1178 format_flow_tunnel(s, match);
1180 format_be64_masked(s, "metadata", f->metadata, wc->masks.metadata);
1182 if (wc->masks.in_port.ofp_port) {
1183 ds_put_cstr(s, "in_port=");
1184 ofputil_format_port(f->in_port.ofp_port, s);
1185 ds_put_char(s, ',');
1187 if (wc->masks.vlan_tci) {
1188 ovs_be16 vid_mask = wc->masks.vlan_tci & htons(VLAN_VID_MASK);
1189 ovs_be16 pcp_mask = wc->masks.vlan_tci & htons(VLAN_PCP_MASK);
1190 ovs_be16 cfi = wc->masks.vlan_tci & htons(VLAN_CFI);
1192 if (cfi && f->vlan_tci & htons(VLAN_CFI)
1193 && (!vid_mask || vid_mask == htons(VLAN_VID_MASK))
1194 && (!pcp_mask || pcp_mask == htons(VLAN_PCP_MASK))
1195 && (vid_mask || pcp_mask)) {
1197 ds_put_format(s, "dl_vlan=%"PRIu16",",
1198 vlan_tci_to_vid(f->vlan_tci));
1201 ds_put_format(s, "dl_vlan_pcp=%d,",
1202 vlan_tci_to_pcp(f->vlan_tci));
1204 } else if (wc->masks.vlan_tci == htons(0xffff)) {
1205 ds_put_format(s, "vlan_tci=0x%04"PRIx16",", ntohs(f->vlan_tci));
1207 ds_put_format(s, "vlan_tci=0x%04"PRIx16"/0x%04"PRIx16",",
1208 ntohs(f->vlan_tci), ntohs(wc->masks.vlan_tci));
1211 format_eth_masked(s, "dl_src", f->dl_src, wc->masks.dl_src);
1212 format_eth_masked(s, "dl_dst", f->dl_dst, wc->masks.dl_dst);
1213 if (!skip_type && wc->masks.dl_type) {
1214 ds_put_format(s, "dl_type=0x%04"PRIx16",", ntohs(f->dl_type));
1216 if (f->dl_type == htons(ETH_TYPE_IPV6)) {
1217 format_ipv6_netmask(s, "ipv6_src", &f->ipv6_src, &wc->masks.ipv6_src);
1218 format_ipv6_netmask(s, "ipv6_dst", &f->ipv6_dst, &wc->masks.ipv6_dst);
1219 if (wc->masks.ipv6_label) {
1220 if (wc->masks.ipv6_label == OVS_BE32_MAX) {
1221 ds_put_format(s, "ipv6_label=0x%05"PRIx32",",
1222 ntohl(f->ipv6_label));
1224 ds_put_format(s, "ipv6_label=0x%05"PRIx32"/0x%05"PRIx32",",
1225 ntohl(f->ipv6_label),
1226 ntohl(wc->masks.ipv6_label));
1229 } else if (f->dl_type == htons(ETH_TYPE_ARP) ||
1230 f->dl_type == htons(ETH_TYPE_RARP)) {
1231 format_ip_netmask(s, "arp_spa", f->nw_src, wc->masks.nw_src);
1232 format_ip_netmask(s, "arp_tpa", f->nw_dst, wc->masks.nw_dst);
1234 format_ip_netmask(s, "nw_src", f->nw_src, wc->masks.nw_src);
1235 format_ip_netmask(s, "nw_dst", f->nw_dst, wc->masks.nw_dst);
1237 if (!skip_proto && wc->masks.nw_proto) {
1238 if (f->dl_type == htons(ETH_TYPE_ARP) ||
1239 f->dl_type == htons(ETH_TYPE_RARP)) {
1240 ds_put_format(s, "arp_op=%"PRIu8",", f->nw_proto);
1242 ds_put_format(s, "nw_proto=%"PRIu8",", f->nw_proto);
1245 if (f->dl_type == htons(ETH_TYPE_ARP) ||
1246 f->dl_type == htons(ETH_TYPE_RARP)) {
1247 format_eth_masked(s, "arp_sha", f->arp_sha, wc->masks.arp_sha);
1248 format_eth_masked(s, "arp_tha", f->arp_tha, wc->masks.arp_tha);
1250 if (wc->masks.nw_tos & IP_DSCP_MASK) {
1251 ds_put_format(s, "nw_tos=%"PRIu8",", f->nw_tos & IP_DSCP_MASK);
1253 if (wc->masks.nw_tos & IP_ECN_MASK) {
1254 ds_put_format(s, "nw_ecn=%"PRIu8",", f->nw_tos & IP_ECN_MASK);
1256 if (wc->masks.nw_ttl) {
1257 ds_put_format(s, "nw_ttl=%"PRIu8",", f->nw_ttl);
1259 if (wc->masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK)) {
1260 ds_put_format(s, "mpls_label=%"PRIu32",",
1261 mpls_lse_to_label(f->mpls_lse[0]));
1263 if (wc->masks.mpls_lse[0] & htonl(MPLS_TC_MASK)) {
1264 ds_put_format(s, "mpls_tc=%"PRIu8",",
1265 mpls_lse_to_tc(f->mpls_lse[0]));
1267 if (wc->masks.mpls_lse[0] & htonl(MPLS_TTL_MASK)) {
1268 ds_put_format(s, "mpls_ttl=%"PRIu8",",
1269 mpls_lse_to_ttl(f->mpls_lse[0]));
1271 if (wc->masks.mpls_lse[0] & htonl(MPLS_BOS_MASK)) {
1272 ds_put_format(s, "mpls_bos=%"PRIu8",",
1273 mpls_lse_to_bos(f->mpls_lse[0]));
1275 format_be32_masked(s, "mpls_lse1", f->mpls_lse[1], wc->masks.mpls_lse[1]);
1276 format_be32_masked(s, "mpls_lse2", f->mpls_lse[2], wc->masks.mpls_lse[2]);
1278 switch (wc->masks.nw_frag) {
1279 case FLOW_NW_FRAG_ANY | FLOW_NW_FRAG_LATER:
1280 ds_put_format(s, "nw_frag=%s,",
1281 f->nw_frag & FLOW_NW_FRAG_ANY
1282 ? (f->nw_frag & FLOW_NW_FRAG_LATER ? "later" : "first")
1283 : (f->nw_frag & FLOW_NW_FRAG_LATER ? "<error>" : "no"));
1286 case FLOW_NW_FRAG_ANY:
1287 ds_put_format(s, "nw_frag=%s,",
1288 f->nw_frag & FLOW_NW_FRAG_ANY ? "yes" : "no");
1291 case FLOW_NW_FRAG_LATER:
1292 ds_put_format(s, "nw_frag=%s,",
1293 f->nw_frag & FLOW_NW_FRAG_LATER ? "later" : "not_later");
1296 if (f->dl_type == htons(ETH_TYPE_IP) &&
1297 f->nw_proto == IPPROTO_ICMP) {
1298 format_be16_masked(s, "icmp_type", f->tp_src, wc->masks.tp_src);
1299 format_be16_masked(s, "icmp_code", f->tp_dst, wc->masks.tp_dst);
1300 } else if (f->dl_type == htons(ETH_TYPE_IP) &&
1301 f->nw_proto == IPPROTO_IGMP) {
1302 format_be16_masked(s, "igmp_type", f->tp_src, wc->masks.tp_src);
1303 format_be16_masked(s, "igmp_code", f->tp_dst, wc->masks.tp_dst);
1304 } else if (f->dl_type == htons(ETH_TYPE_IPV6) &&
1305 f->nw_proto == IPPROTO_ICMPV6) {
1306 format_be16_masked(s, "icmp_type", f->tp_src, wc->masks.tp_src);
1307 format_be16_masked(s, "icmp_code", f->tp_dst, wc->masks.tp_dst);
1308 format_ipv6_netmask(s, "nd_target", &f->nd_target,
1309 &wc->masks.nd_target);
1310 format_eth_masked(s, "nd_sll", f->arp_sha, wc->masks.arp_sha);
1311 format_eth_masked(s, "nd_tll", f->arp_tha, wc->masks.arp_tha);
1313 format_be16_masked(s, "tp_src", f->tp_src, wc->masks.tp_src);
1314 format_be16_masked(s, "tp_dst", f->tp_dst, wc->masks.tp_dst);
1316 if (is_ip_any(f) && f->nw_proto == IPPROTO_TCP && wc->masks.tcp_flags) {
1317 format_flags_masked(s, "tcp_flags", packet_tcp_flag_to_string,
1318 ntohs(f->tcp_flags), TCP_FLAGS(wc->masks.tcp_flags),
1319 TCP_FLAGS(OVS_BE16_MAX));
1322 if (s->length > start_len) {
1327 /* Converts 'match' to a string and returns the string. If 'priority' is
1328 * different from OFP_DEFAULT_PRIORITY, includes it in the string. The caller
1329 * must free the string (with free()). */
1331 match_to_string(const struct match *match, int priority)
1333 struct ds s = DS_EMPTY_INITIALIZER;
1334 match_format(match, &s, priority);
1335 return ds_steal_cstr(&s);
1339 match_print(const struct match *match)
1341 char *s = match_to_string(match, OFP_DEFAULT_PRIORITY);
1346 /* Initializes 'dst' as a copy of 'src'. The caller must eventually free 'dst'
1347 * with minimatch_destroy(). */
1349 minimatch_init(struct minimatch *dst, const struct match *src)
1351 struct miniflow tmp;
1353 miniflow_map_init(&tmp, &src->wc.masks);
1354 /* Allocate two consecutive miniflows. */
1355 miniflow_alloc(dst->flows, 2, &tmp);
1356 miniflow_init(dst->flow, &src->flow);
1357 minimask_init(dst->mask, &src->wc);
1360 /* Initializes 'dst' as a copy of 'src'. The caller must eventually free 'dst'
1361 * with minimatch_destroy(). */
1363 minimatch_clone(struct minimatch *dst, const struct minimatch *src)
1365 /* Allocate two consecutive miniflows. */
1366 size_t data_size = miniflow_alloc(dst->flows, 2, &src->mask->masks);
1368 memcpy(miniflow_values(dst->flow),
1369 miniflow_get_values(src->flow), data_size);
1370 memcpy(miniflow_values(&dst->mask->masks),
1371 miniflow_get_values(&src->mask->masks), data_size);
1374 /* Initializes 'dst' with the data in 'src', destroying 'src'. The caller must
1375 * eventually free 'dst' with minimatch_destroy(). */
1377 minimatch_move(struct minimatch *dst, struct minimatch *src)
1379 dst->flow = src->flow;
1380 dst->mask = src->mask;
1383 /* Frees any memory owned by 'match'. Does not free the storage in which
1384 * 'match' itself resides; the caller is responsible for that. */
1386 minimatch_destroy(struct minimatch *match)
1391 /* Initializes 'dst' as a copy of 'src'. */
1393 minimatch_expand(const struct minimatch *src, struct match *dst)
1395 miniflow_expand(src->flow, &dst->flow);
1396 minimask_expand(src->mask, &dst->wc);
1397 memset(&dst->tun_md, 0, sizeof dst->tun_md);
1400 /* Returns true if 'a' and 'b' match the same packets, false otherwise. */
1402 minimatch_equal(const struct minimatch *a, const struct minimatch *b)
1404 return minimask_equal(a->mask, b->mask)
1405 && miniflow_equal(a->flow, b->flow);
1408 /* Returns true if 'target' satisifies 'match', that is, if each bit for which
1409 * 'match' specifies a particular value has the correct value in 'target'.
1411 * This function is equivalent to miniflow_equal_flow_in_minimask(&match->flow,
1412 * target, &match->mask) but it is faster because of the invariant that
1413 * match->flow.map and match->mask.map are the same. */
1415 minimatch_matches_flow(const struct minimatch *match,
1416 const struct flow *target)
1418 const uint64_t *flowp = miniflow_get_values(match->flow);
1419 const uint64_t *maskp = miniflow_get_values(&match->mask->masks);
1422 FLOWMAP_FOR_EACH_INDEX(idx, match->flow->map) {
1423 if ((*flowp++ ^ flow_u64_value(target, idx)) & *maskp++) {
1431 /* Appends a string representation of 'match' to 's'. If 'priority' is
1432 * different from OFP_DEFAULT_PRIORITY, includes it in 's'. */
1434 minimatch_format(const struct minimatch *match, struct ds *s, int priority)
1436 struct match megamatch;
1438 minimatch_expand(match, &megamatch);
1439 match_format(&megamatch, s, priority);
1442 /* Converts 'match' to a string and returns the string. If 'priority' is
1443 * different from OFP_DEFAULT_PRIORITY, includes it in the string. The caller
1444 * must free the string (with free()). */
1446 minimatch_to_string(const struct minimatch *match, int priority)
1448 struct match megamatch;
1450 minimatch_expand(match, &megamatch);
1451 return match_to_string(&megamatch, priority);