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.
18 #include "openvswitch/match.h"
21 #include "byte-order.h"
23 #include "openvswitch/dynamic-string.h"
24 #include "openvswitch/ofp-util.h"
26 #include "tun-metadata.h"
28 /* Converts the flow in 'flow' into a match in 'match', with the given
31 match_init(struct match *match,
32 const struct flow *flow, const struct flow_wildcards *wc)
36 match_zero_wildcarded_fields(match);
37 memset(&match->tun_md, 0, sizeof match->tun_md);
40 /* Converts a flow into a match. It sets the wildcard masks based on
41 * the packet contents. It will not set the mask for fields that do not
42 * make sense for the packet type. */
44 match_wc_init(struct match *match, const struct flow *flow)
48 flow_wildcards_init_for_packet(&match->wc, flow);
49 WC_MASK_FIELD(&match->wc, regs);
50 WC_MASK_FIELD(&match->wc, metadata);
52 memset(&match->tun_md, 0, sizeof match->tun_md);
55 /* Initializes 'match' as a "catch-all" match that matches every packet. */
57 match_init_catchall(struct match *match)
59 memset(&match->flow, 0, sizeof match->flow);
60 flow_wildcards_init_catchall(&match->wc);
61 memset(&match->tun_md, 0, sizeof match->tun_md);
64 /* For each bit or field wildcarded in 'match', sets the corresponding bit or
65 * field in 'flow' to all-0-bits. It is important to maintain this invariant
66 * in a match that might be inserted into a classifier.
68 * It is never necessary to call this function directly for a match that is
69 * initialized or modified only by match_*() functions. It is useful to
70 * restore the invariant in a match whose 'wc' member is modified by hand.
73 match_zero_wildcarded_fields(struct match *match)
75 flow_zero_wildcards(&match->flow, &match->wc);
79 match_set_dp_hash(struct match *match, uint32_t value)
81 match_set_dp_hash_masked(match, value, UINT32_MAX);
85 match_set_dp_hash_masked(struct match *match, uint32_t value, uint32_t mask)
87 match->wc.masks.dp_hash = mask;
88 match->flow.dp_hash = value & mask;
92 match_set_recirc_id(struct match *match, uint32_t value)
94 match->flow.recirc_id = value;
95 match->wc.masks.recirc_id = UINT32_MAX;
99 match_set_conj_id(struct match *match, uint32_t value)
101 match->flow.conj_id = value;
102 match->wc.masks.conj_id = UINT32_MAX;
106 match_set_reg(struct match *match, unsigned int reg_idx, uint32_t value)
108 match_set_reg_masked(match, reg_idx, value, UINT32_MAX);
112 match_set_reg_masked(struct match *match, unsigned int reg_idx,
113 uint32_t value, uint32_t mask)
115 ovs_assert(reg_idx < FLOW_N_REGS);
116 flow_wildcards_set_reg_mask(&match->wc, reg_idx, mask);
117 match->flow.regs[reg_idx] = value & mask;
121 match_set_xreg(struct match *match, unsigned int xreg_idx, uint64_t value)
123 match_set_xreg_masked(match, xreg_idx, value, UINT64_MAX);
127 match_set_xreg_masked(struct match *match, unsigned int xreg_idx,
128 uint64_t value, uint64_t mask)
130 ovs_assert(xreg_idx < FLOW_N_XREGS);
131 flow_wildcards_set_xreg_mask(&match->wc, xreg_idx, mask);
132 flow_set_xreg(&match->flow, xreg_idx, value & mask);
136 match_set_xxreg(struct match *match, unsigned int xxreg_idx, ovs_u128 value)
138 match_set_xxreg_masked(match, xxreg_idx, value, OVS_U128_MAX);
142 match_set_xxreg_masked(struct match *match, unsigned int xxreg_idx,
143 ovs_u128 value, ovs_u128 mask)
145 ovs_assert(xxreg_idx < FLOW_N_XXREGS);
146 flow_wildcards_set_xxreg_mask(&match->wc, xxreg_idx, mask);
147 flow_set_xxreg(&match->flow, xxreg_idx, ovs_u128_and(value, mask));
151 match_set_actset_output(struct match *match, ofp_port_t actset_output)
153 match->wc.masks.actset_output = u16_to_ofp(UINT16_MAX);
154 match->flow.actset_output = actset_output;
158 match_set_metadata(struct match *match, ovs_be64 metadata)
160 match_set_metadata_masked(match, metadata, OVS_BE64_MAX);
164 match_set_metadata_masked(struct match *match,
165 ovs_be64 metadata, ovs_be64 mask)
167 match->wc.masks.metadata = mask;
168 match->flow.metadata = metadata & mask;
172 match_set_tun_id(struct match *match, ovs_be64 tun_id)
174 match_set_tun_id_masked(match, tun_id, OVS_BE64_MAX);
178 match_set_tun_id_masked(struct match *match, ovs_be64 tun_id, ovs_be64 mask)
180 match->wc.masks.tunnel.tun_id = mask;
181 match->flow.tunnel.tun_id = tun_id & mask;
185 match_set_tun_src(struct match *match, ovs_be32 src)
187 match_set_tun_src_masked(match, src, OVS_BE32_MAX);
191 match_set_tun_src_masked(struct match *match, ovs_be32 src, ovs_be32 mask)
193 match->wc.masks.tunnel.ip_src = mask;
194 match->flow.tunnel.ip_src = src & mask;
198 match_set_tun_dst(struct match *match, ovs_be32 dst)
200 match_set_tun_dst_masked(match, dst, OVS_BE32_MAX);
204 match_set_tun_dst_masked(struct match *match, ovs_be32 dst, ovs_be32 mask)
206 match->wc.masks.tunnel.ip_dst = mask;
207 match->flow.tunnel.ip_dst = dst & mask;
211 match_set_tun_ipv6_src(struct match *match, const struct in6_addr *src)
213 match->flow.tunnel.ipv6_src = *src;
214 match->wc.masks.tunnel.ipv6_src = in6addr_exact;
218 match_set_tun_ipv6_src_masked(struct match *match, const struct in6_addr *src,
219 const struct in6_addr *mask)
221 match->flow.tunnel.ipv6_src = ipv6_addr_bitand(src, mask);
222 match->wc.masks.tunnel.ipv6_src = *mask;
226 match_set_tun_ipv6_dst(struct match *match, const struct in6_addr *dst)
228 match->flow.tunnel.ipv6_dst = *dst;
229 match->wc.masks.tunnel.ipv6_dst = in6addr_exact;
233 match_set_tun_ipv6_dst_masked(struct match *match, const struct in6_addr *dst,
234 const struct in6_addr *mask)
236 match->flow.tunnel.ipv6_dst = ipv6_addr_bitand(dst, mask);
237 match->wc.masks.tunnel.ipv6_dst = *mask;
241 match_set_tun_ttl(struct match *match, uint8_t ttl)
243 match_set_tun_ttl_masked(match, ttl, UINT8_MAX);
247 match_set_tun_ttl_masked(struct match *match, uint8_t ttl, uint8_t mask)
249 match->wc.masks.tunnel.ip_ttl = mask;
250 match->flow.tunnel.ip_ttl = ttl & mask;
254 match_set_tun_tos(struct match *match, uint8_t tos)
256 match_set_tun_tos_masked(match, tos, UINT8_MAX);
260 match_set_tun_tos_masked(struct match *match, uint8_t tos, uint8_t mask)
262 match->wc.masks.tunnel.ip_tos = mask;
263 match->flow.tunnel.ip_tos = tos & mask;
267 match_set_tun_flags(struct match *match, uint16_t flags)
269 match_set_tun_flags_masked(match, flags, UINT16_MAX);
273 match_set_tun_flags_masked(struct match *match, uint16_t flags, uint16_t mask)
275 mask &= FLOW_TNL_PUB_F_MASK;
277 match->wc.masks.tunnel.flags = mask;
278 match->flow.tunnel.flags = flags & mask;
282 match_set_tun_gbp_id_masked(struct match *match, ovs_be16 gbp_id, ovs_be16 mask)
284 match->wc.masks.tunnel.gbp_id = mask;
285 match->flow.tunnel.gbp_id = gbp_id & mask;
289 match_set_tun_gbp_id(struct match *match, ovs_be16 gbp_id)
291 match_set_tun_gbp_id_masked(match, gbp_id, OVS_BE16_MAX);
295 match_set_tun_gbp_flags_masked(struct match *match, uint8_t flags, uint8_t mask)
297 match->wc.masks.tunnel.gbp_flags = mask;
298 match->flow.tunnel.gbp_flags = flags & mask;
302 match_set_tun_gbp_flags(struct match *match, uint8_t flags)
304 match_set_tun_gbp_flags_masked(match, flags, UINT8_MAX);
308 match_set_in_port(struct match *match, ofp_port_t ofp_port)
310 match->wc.masks.in_port.ofp_port = u16_to_ofp(UINT16_MAX);
311 match->flow.in_port.ofp_port = ofp_port;
315 match_set_skb_priority(struct match *match, uint32_t skb_priority)
317 match->wc.masks.skb_priority = UINT32_MAX;
318 match->flow.skb_priority = skb_priority;
322 match_set_pkt_mark(struct match *match, uint32_t pkt_mark)
324 match_set_pkt_mark_masked(match, pkt_mark, UINT32_MAX);
328 match_set_pkt_mark_masked(struct match *match, uint32_t pkt_mark, uint32_t mask)
330 match->flow.pkt_mark = pkt_mark & mask;
331 match->wc.masks.pkt_mark = mask;
335 match_set_ct_state(struct match *match, uint32_t ct_state)
337 match_set_ct_state_masked(match, ct_state, UINT32_MAX);
341 match_set_ct_state_masked(struct match *match, uint32_t ct_state, uint32_t mask)
343 match->flow.ct_state = ct_state & mask & UINT16_MAX;
344 match->wc.masks.ct_state = mask & UINT16_MAX;
348 match_set_ct_zone(struct match *match, uint16_t ct_zone)
350 match->flow.ct_zone = ct_zone;
351 match->wc.masks.ct_zone = UINT16_MAX;
355 match_set_ct_mark(struct match *match, uint32_t ct_mark)
357 match_set_ct_mark_masked(match, ct_mark, UINT32_MAX);
361 match_set_ct_mark_masked(struct match *match, uint32_t ct_mark,
364 match->flow.ct_mark = ct_mark & mask;
365 match->wc.masks.ct_mark = mask;
369 match_set_ct_label(struct match *match, ovs_u128 ct_label)
373 mask.u64.lo = UINT64_MAX;
374 mask.u64.hi = UINT64_MAX;
375 match_set_ct_label_masked(match, ct_label, mask);
379 match_set_ct_label_masked(struct match *match, ovs_u128 value, ovs_u128 mask)
381 match->flow.ct_label.u64.lo = value.u64.lo & mask.u64.lo;
382 match->flow.ct_label.u64.hi = value.u64.hi & mask.u64.hi;
383 match->wc.masks.ct_label = mask;
387 match_set_dl_type(struct match *match, ovs_be16 dl_type)
389 match->wc.masks.dl_type = OVS_BE16_MAX;
390 match->flow.dl_type = dl_type;
393 /* Modifies 'value_src' so that the Ethernet address must match 'value_dst'
394 * exactly. 'mask_dst' is set to all 1s. */
396 set_eth(const struct eth_addr value_src,
397 struct eth_addr *value_dst,
398 struct eth_addr *mask_dst)
400 *value_dst = value_src;
401 *mask_dst = eth_addr_exact;
404 /* Modifies 'value_src' so that the Ethernet address must match 'value_src'
405 * after each byte is ANDed with the appropriate byte in 'mask_src'.
406 * 'mask_dst' is set to 'mask_src' */
408 set_eth_masked(const struct eth_addr value_src,
409 const struct eth_addr mask_src,
410 struct eth_addr *value_dst, struct eth_addr *mask_dst)
414 for (i = 0; i < ARRAY_SIZE(value_dst->be16); i++) {
415 value_dst->be16[i] = value_src.be16[i] & mask_src.be16[i];
417 *mask_dst = mask_src;
420 /* Modifies 'rule' so that the source Ethernet address must match 'dl_src'
423 match_set_dl_src(struct match *match, const struct eth_addr dl_src)
425 set_eth(dl_src, &match->flow.dl_src, &match->wc.masks.dl_src);
428 /* Modifies 'rule' so that the source Ethernet address must match 'dl_src'
429 * after each byte is ANDed with the appropriate byte in 'mask'. */
431 match_set_dl_src_masked(struct match *match,
432 const struct eth_addr dl_src,
433 const struct eth_addr mask)
435 set_eth_masked(dl_src, mask, &match->flow.dl_src, &match->wc.masks.dl_src);
438 /* Modifies 'match' so that the Ethernet address must match 'dl_dst'
441 match_set_dl_dst(struct match *match, const struct eth_addr dl_dst)
443 set_eth(dl_dst, &match->flow.dl_dst, &match->wc.masks.dl_dst);
446 /* Modifies 'match' so that the Ethernet address must match 'dl_dst' after each
447 * byte is ANDed with the appropriate byte in 'mask'.
449 * This function will assert-fail if 'mask' is invalid. Only 'mask' values
450 * accepted by flow_wildcards_is_dl_dst_mask_valid() are allowed. */
452 match_set_dl_dst_masked(struct match *match,
453 const struct eth_addr dl_dst,
454 const struct eth_addr mask)
456 set_eth_masked(dl_dst, mask, &match->flow.dl_dst, &match->wc.masks.dl_dst);
460 match_set_dl_tci(struct match *match, ovs_be16 tci)
462 match_set_dl_tci_masked(match, tci, htons(0xffff));
466 match_set_dl_tci_masked(struct match *match, ovs_be16 tci, ovs_be16 mask)
468 match->flow.vlan_tci = tci & mask;
469 match->wc.masks.vlan_tci = mask;
472 /* Modifies 'match' so that the VLAN VID is wildcarded. If the PCP is already
473 * wildcarded, then 'match' will match a packet regardless of whether it has an
474 * 802.1Q header or not. */
476 match_set_any_vid(struct match *match)
478 if (match->wc.masks.vlan_tci & htons(VLAN_PCP_MASK)) {
479 match->wc.masks.vlan_tci &= ~htons(VLAN_VID_MASK);
480 match->flow.vlan_tci &= ~htons(VLAN_VID_MASK);
482 match_set_dl_tci_masked(match, htons(0), htons(0));
486 /* Modifies 'match' depending on 'dl_vlan':
488 * - If 'dl_vlan' is htons(OFP_VLAN_NONE), makes 'match' match only packets
489 * without an 802.1Q header.
491 * - Otherwise, makes 'match' match only packets with an 802.1Q header whose
492 * VID equals the low 12 bits of 'dl_vlan'.
495 match_set_dl_vlan(struct match *match, ovs_be16 dl_vlan)
497 flow_set_dl_vlan(&match->flow, dl_vlan);
498 if (dl_vlan == htons(OFP10_VLAN_NONE)) {
499 match->wc.masks.vlan_tci = OVS_BE16_MAX;
501 match->wc.masks.vlan_tci |= htons(VLAN_VID_MASK | VLAN_CFI);
505 /* Sets the VLAN VID that 'match' matches to 'vid', which is interpreted as an
506 * OpenFlow 1.2 "vlan_vid" value, that is, the low 13 bits of 'vlan_tci' (VID
509 match_set_vlan_vid(struct match *match, ovs_be16 vid)
511 match_set_vlan_vid_masked(match, vid, htons(VLAN_VID_MASK | VLAN_CFI));
515 /* Sets the VLAN VID that 'flow' matches to 'vid', which is interpreted as an
516 * OpenFlow 1.2 "vlan_vid" value, that is, the low 13 bits of 'vlan_tci' (VID
517 * plus CFI), with the corresponding 'mask'. */
519 match_set_vlan_vid_masked(struct match *match, ovs_be16 vid, ovs_be16 mask)
521 ovs_be16 pcp_mask = htons(VLAN_PCP_MASK);
522 ovs_be16 vid_mask = htons(VLAN_VID_MASK | VLAN_CFI);
525 flow_set_vlan_vid(&match->flow, vid & mask);
526 match->wc.masks.vlan_tci = mask | (match->wc.masks.vlan_tci & pcp_mask);
529 /* Modifies 'match' so that the VLAN PCP is wildcarded. If the VID is already
530 * wildcarded, then 'match' will match a packet regardless of whether it has an
531 * 802.1Q header or not. */
533 match_set_any_pcp(struct match *match)
535 if (match->wc.masks.vlan_tci & htons(VLAN_VID_MASK)) {
536 match->wc.masks.vlan_tci &= ~htons(VLAN_PCP_MASK);
537 match->flow.vlan_tci &= ~htons(VLAN_PCP_MASK);
539 match_set_dl_tci_masked(match, htons(0), htons(0));
543 /* Modifies 'match' so that it matches only packets with an 802.1Q header whose
544 * PCP equals the low 3 bits of 'dl_vlan_pcp'. */
546 match_set_dl_vlan_pcp(struct match *match, uint8_t dl_vlan_pcp)
548 flow_set_vlan_pcp(&match->flow, dl_vlan_pcp);
549 match->wc.masks.vlan_tci |= htons(VLAN_CFI | VLAN_PCP_MASK);
552 /* Modifies 'match' so that the MPLS label 'idx' matches 'lse' exactly. */
554 match_set_mpls_lse(struct match *match, int idx, ovs_be32 lse)
556 match->wc.masks.mpls_lse[idx] = OVS_BE32_MAX;
557 match->flow.mpls_lse[idx] = lse;
560 /* Modifies 'match' so that the MPLS label is wildcarded. */
562 match_set_any_mpls_label(struct match *match, int idx)
564 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_LABEL_MASK);
565 flow_set_mpls_label(&match->flow, idx, htonl(0));
568 /* Modifies 'match' so that it matches only packets with an MPLS header whose
569 * label equals the low 20 bits of 'mpls_label'. */
571 match_set_mpls_label(struct match *match, int idx, ovs_be32 mpls_label)
573 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_LABEL_MASK);
574 flow_set_mpls_label(&match->flow, idx, mpls_label);
577 /* Modifies 'match' so that the MPLS TC is wildcarded. */
579 match_set_any_mpls_tc(struct match *match, int idx)
581 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_TC_MASK);
582 flow_set_mpls_tc(&match->flow, idx, 0);
585 /* Modifies 'match' so that it matches only packets with an MPLS header whose
586 * Traffic Class equals the low 3 bits of 'mpls_tc'. */
588 match_set_mpls_tc(struct match *match, int idx, uint8_t mpls_tc)
590 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_TC_MASK);
591 flow_set_mpls_tc(&match->flow, idx, mpls_tc);
594 /* Modifies 'match' so that the MPLS stack flag is wildcarded. */
596 match_set_any_mpls_bos(struct match *match, int idx)
598 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_BOS_MASK);
599 flow_set_mpls_bos(&match->flow, idx, 0);
602 /* Modifies 'match' so that it matches only packets with an MPLS header whose
603 * Stack Flag equals the lower bit of 'mpls_bos' */
605 match_set_mpls_bos(struct match *match, int idx, uint8_t mpls_bos)
607 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_BOS_MASK);
608 flow_set_mpls_bos(&match->flow, idx, mpls_bos);
611 /* Modifies 'match' so that the TTL of MPLS label 'idx' is wildcarded. */
613 match_set_any_mpls_ttl(struct match *match, int idx)
615 match->wc.masks.mpls_lse[idx] &= ~htonl(MPLS_TTL_MASK);
616 flow_set_mpls_ttl(&match->flow, idx, 0);
619 /* Modifies 'match' so that it matches only packets in which the TTL of MPLS
620 * label 'idx' equals 'mpls_ttl'. */
622 match_set_mpls_ttl(struct match *match, int idx, uint8_t mpls_ttl)
624 match->wc.masks.mpls_lse[idx] |= htonl(MPLS_TTL_MASK);
625 flow_set_mpls_ttl(&match->flow, idx, mpls_ttl);
628 /* Modifies 'match' so that the MPLS LSE is wildcarded. */
630 match_set_any_mpls_lse(struct match *match, int idx)
632 match->wc.masks.mpls_lse[idx] = htonl(0);
633 flow_set_mpls_lse(&match->flow, idx, htonl(0));
637 match_set_tp_src(struct match *match, ovs_be16 tp_src)
639 match_set_tp_src_masked(match, tp_src, OVS_BE16_MAX);
643 match_set_tp_src_masked(struct match *match, ovs_be16 port, ovs_be16 mask)
645 match->flow.tp_src = port & mask;
646 match->wc.masks.tp_src = mask;
650 match_set_tp_dst(struct match *match, ovs_be16 tp_dst)
652 match_set_tp_dst_masked(match, tp_dst, OVS_BE16_MAX);
656 match_set_tp_dst_masked(struct match *match, ovs_be16 port, ovs_be16 mask)
658 match->flow.tp_dst = port & mask;
659 match->wc.masks.tp_dst = mask;
663 match_set_tcp_flags(struct match *match, ovs_be16 flags)
665 match_set_tcp_flags_masked(match, flags, OVS_BE16_MAX);
669 match_set_tcp_flags_masked(struct match *match, ovs_be16 flags, ovs_be16 mask)
671 match->flow.tcp_flags = flags & mask;
672 match->wc.masks.tcp_flags = mask;
676 match_set_nw_proto(struct match *match, uint8_t nw_proto)
678 match->flow.nw_proto = nw_proto;
679 match->wc.masks.nw_proto = UINT8_MAX;
683 match_set_nw_src(struct match *match, ovs_be32 nw_src)
685 match->flow.nw_src = nw_src;
686 match->wc.masks.nw_src = OVS_BE32_MAX;
690 match_set_nw_src_masked(struct match *match,
691 ovs_be32 nw_src, ovs_be32 mask)
693 match->flow.nw_src = nw_src & mask;
694 match->wc.masks.nw_src = mask;
698 match_set_nw_dst(struct match *match, ovs_be32 nw_dst)
700 match->flow.nw_dst = nw_dst;
701 match->wc.masks.nw_dst = OVS_BE32_MAX;
705 match_set_nw_dst_masked(struct match *match, ovs_be32 ip, ovs_be32 mask)
707 match->flow.nw_dst = ip & mask;
708 match->wc.masks.nw_dst = mask;
712 match_set_nw_dscp(struct match *match, uint8_t nw_dscp)
714 match->wc.masks.nw_tos |= IP_DSCP_MASK;
715 match->flow.nw_tos &= ~IP_DSCP_MASK;
716 match->flow.nw_tos |= nw_dscp & IP_DSCP_MASK;
720 match_set_nw_ecn(struct match *match, uint8_t nw_ecn)
722 match->wc.masks.nw_tos |= IP_ECN_MASK;
723 match->flow.nw_tos &= ~IP_ECN_MASK;
724 match->flow.nw_tos |= nw_ecn & IP_ECN_MASK;
728 match_set_nw_ttl(struct match *match, uint8_t nw_ttl)
730 match->wc.masks.nw_ttl = UINT8_MAX;
731 match->flow.nw_ttl = nw_ttl;
735 match_set_nw_frag(struct match *match, uint8_t nw_frag)
737 match->wc.masks.nw_frag |= FLOW_NW_FRAG_MASK;
738 match->flow.nw_frag = nw_frag;
742 match_set_nw_frag_masked(struct match *match,
743 uint8_t nw_frag, uint8_t mask)
745 match->flow.nw_frag = nw_frag & mask;
746 match->wc.masks.nw_frag = mask;
750 match_set_icmp_type(struct match *match, uint8_t icmp_type)
752 match_set_tp_src(match, htons(icmp_type));
756 match_set_icmp_code(struct match *match, uint8_t icmp_code)
758 match_set_tp_dst(match, htons(icmp_code));
762 match_set_arp_sha(struct match *match, const struct eth_addr sha)
764 match->flow.arp_sha = sha;
765 match->wc.masks.arp_sha = eth_addr_exact;
769 match_set_arp_sha_masked(struct match *match,
770 const struct eth_addr arp_sha,
771 const struct eth_addr mask)
773 set_eth_masked(arp_sha, mask,
774 &match->flow.arp_sha, &match->wc.masks.arp_sha);
778 match_set_arp_tha(struct match *match, const struct eth_addr tha)
780 match->flow.arp_tha = tha;
781 match->wc.masks.arp_tha = eth_addr_exact;
785 match_set_arp_tha_masked(struct match *match,
786 const struct eth_addr arp_tha,
787 const struct eth_addr mask)
789 set_eth_masked(arp_tha, mask,
790 &match->flow.arp_tha, &match->wc.masks.arp_tha);
794 match_set_ipv6_src(struct match *match, const struct in6_addr *src)
796 match->flow.ipv6_src = *src;
797 match->wc.masks.ipv6_src = in6addr_exact;
801 match_set_ipv6_src_masked(struct match *match, const struct in6_addr *src,
802 const struct in6_addr *mask)
804 match->flow.ipv6_src = ipv6_addr_bitand(src, mask);
805 match->wc.masks.ipv6_src = *mask;
809 match_set_ipv6_dst(struct match *match, const struct in6_addr *dst)
811 match->flow.ipv6_dst = *dst;
812 match->wc.masks.ipv6_dst = in6addr_exact;
816 match_set_ipv6_dst_masked(struct match *match, const struct in6_addr *dst,
817 const struct in6_addr *mask)
819 match->flow.ipv6_dst = ipv6_addr_bitand(dst, mask);
820 match->wc.masks.ipv6_dst = *mask;
824 match_set_ipv6_label(struct match *match, ovs_be32 ipv6_label)
826 match->wc.masks.ipv6_label = OVS_BE32_MAX;
827 match->flow.ipv6_label = ipv6_label;
832 match_set_ipv6_label_masked(struct match *match, ovs_be32 ipv6_label,
835 match->flow.ipv6_label = ipv6_label & mask;
836 match->wc.masks.ipv6_label = mask;
840 match_set_nd_target(struct match *match, const struct in6_addr *target)
842 match->flow.nd_target = *target;
843 match->wc.masks.nd_target = in6addr_exact;
847 match_set_nd_target_masked(struct match *match,
848 const struct in6_addr *target,
849 const struct in6_addr *mask)
851 match->flow.nd_target = ipv6_addr_bitand(target, mask);
852 match->wc.masks.nd_target = *mask;
855 /* Returns true if 'a' and 'b' wildcard the same fields and have the same
856 * values for fixed fields, otherwise false. */
858 match_equal(const struct match *a, const struct match *b)
860 return (flow_wildcards_equal(&a->wc, &b->wc)
861 && flow_equal(&a->flow, &b->flow));
864 /* Returns a hash value for the flow and wildcards in 'match', starting from
867 match_hash(const struct match *match, uint32_t basis)
869 return flow_wildcards_hash(&match->wc, flow_hash(&match->flow, basis));
873 match_has_default_recirc_id(const struct match *m)
875 return m->flow.recirc_id == 0 && (m->wc.masks.recirc_id == UINT32_MAX ||
876 m->wc.masks.recirc_id == 0);
880 match_has_default_dp_hash(const struct match *m)
882 return ((m->flow.dp_hash | m->wc.masks.dp_hash) == 0);
885 /* Return true if the hidden fields of the match are set to the default values.
886 * The default values equals to those set up by match_init_hidden_fields(). */
888 match_has_default_hidden_fields(const struct match *m)
890 return match_has_default_recirc_id(m) && match_has_default_dp_hash(m);
894 match_init_hidden_fields(struct match *m)
896 match_set_recirc_id(m, 0);
897 match_set_dp_hash_masked(m, 0, 0);
901 format_eth_masked(struct ds *s, const char *name,
902 const struct eth_addr eth, const struct eth_addr mask)
904 if (!eth_addr_is_zero(mask)) {
905 ds_put_format(s, "%s%s=%s", colors.param, name, colors.end);
906 eth_format_masked(eth, &mask, s);
912 format_ip_netmask(struct ds *s, const char *name, ovs_be32 ip,
916 ds_put_format(s, "%s%s=%s", colors.param, name, colors.end);
917 ip_format_masked(ip, netmask, s);
923 format_ipv6_netmask(struct ds *s, const char *name,
924 const struct in6_addr *addr,
925 const struct in6_addr *netmask)
927 if (!ipv6_mask_is_any(netmask)) {
928 ds_put_format(s, "%s%s=%s", colors.param, name, colors.end);
929 ipv6_format_masked(addr, netmask, s);
935 format_uint16_masked(struct ds *s, const char *name,
936 uint16_t value, uint16_t mask)
939 ds_put_format(s, "%s%s=%s", colors.param, name, colors.end);
940 if (mask == UINT16_MAX) {
941 ds_put_format(s, "%"PRIu16, value);
943 ds_put_format(s, "0x%"PRIx16"/0x%"PRIx16, value, mask);
950 format_be16_masked(struct ds *s, const char *name,
951 ovs_be16 value, ovs_be16 mask)
953 if (mask != htons(0)) {
954 ds_put_format(s, "%s%s=%s", colors.param, name, colors.end);
955 if (mask == OVS_BE16_MAX) {
956 ds_put_format(s, "%"PRIu16, ntohs(value));
958 ds_put_format(s, "0x%"PRIx16"/0x%"PRIx16,
959 ntohs(value), ntohs(mask));
966 format_be32_masked(struct ds *s, const char *name,
967 ovs_be32 value, ovs_be32 mask)
969 if (mask != htonl(0)) {
970 ds_put_format(s, "%s%s=%s", colors.param, name, colors.end);
971 if (mask == OVS_BE32_MAX) {
972 ds_put_format(s, "%"PRIu32, ntohl(value));
974 ds_put_format(s, "0x%"PRIx32"/0x%"PRIx32,
975 ntohl(value), ntohl(mask));
982 format_uint32_masked(struct ds *s, const char *name,
983 uint32_t value, uint32_t mask)
986 ds_put_format(s, "%s%s=%s%#"PRIx32,
987 colors.param, name, colors.end, value);
988 if (mask != UINT32_MAX) {
989 ds_put_format(s, "/%#"PRIx32, mask);
996 format_be64_masked(struct ds *s, const char *name,
997 ovs_be64 value, ovs_be64 mask)
999 if (mask != htonll(0)) {
1000 ds_put_format(s, "%s%s=%s%#"PRIx64,
1001 colors.param, name, colors.end, ntohll(value));
1002 if (mask != OVS_BE64_MAX) {
1003 ds_put_format(s, "/%#"PRIx64, ntohll(mask));
1005 ds_put_char(s, ',');
1010 format_flow_tunnel(struct ds *s, const struct match *match)
1012 const struct flow_wildcards *wc = &match->wc;
1013 const struct flow_tnl *tnl = &match->flow.tunnel;
1015 format_be64_masked(s, "tun_id", tnl->tun_id, wc->masks.tunnel.tun_id);
1016 format_ip_netmask(s, "tun_src", tnl->ip_src, wc->masks.tunnel.ip_src);
1017 format_ip_netmask(s, "tun_dst", tnl->ip_dst, wc->masks.tunnel.ip_dst);
1018 format_ipv6_netmask(s, "tun_ipv6_src", &tnl->ipv6_src,
1019 &wc->masks.tunnel.ipv6_src);
1020 format_ipv6_netmask(s, "tun_ipv6_dst", &tnl->ipv6_dst,
1021 &wc->masks.tunnel.ipv6_dst);
1023 if (wc->masks.tunnel.gbp_id) {
1024 format_be16_masked(s, "tun_gbp_id", tnl->gbp_id,
1025 wc->masks.tunnel.gbp_id);
1028 if (wc->masks.tunnel.gbp_flags) {
1029 ds_put_format(s, "tun_gbp_flags=%#"PRIx8",", tnl->gbp_flags);
1032 if (wc->masks.tunnel.ip_tos) {
1033 ds_put_format(s, "tun_tos=%"PRIx8",", tnl->ip_tos);
1035 if (wc->masks.tunnel.ip_ttl) {
1036 ds_put_format(s, "tun_ttl=%"PRIu8",", tnl->ip_ttl);
1038 if (wc->masks.tunnel.flags) {
1039 format_flags_masked(s, "tun_flags", flow_tun_flag_to_string,
1041 wc->masks.tunnel.flags & FLOW_TNL_F_MASK,
1043 ds_put_char(s, ',');
1045 tun_metadata_match_format(s, match);
1049 format_ct_label_masked(struct ds *s, const ovs_u128 *key, const ovs_u128 *mask)
1051 if (!ovs_u128_is_zero(*mask)) {
1052 ovs_be128 value = hton128(*key);
1053 ds_put_format(s, "%sct_label=%s", colors.param, colors.end);
1054 ds_put_hex(s, &value, sizeof value);
1055 if (!is_all_ones(mask, sizeof(*mask))) {
1056 value = hton128(*mask);
1057 ds_put_char(s, '/');
1058 ds_put_hex(s, &value, sizeof value);
1060 ds_put_char(s, ',');
1064 /* Appends a string representation of 'match' to 's'. If 'priority' is
1065 * different from OFP_DEFAULT_PRIORITY, includes it in 's'. */
1067 match_format(const struct match *match, struct ds *s, int priority)
1069 const struct flow_wildcards *wc = &match->wc;
1070 size_t start_len = s->length;
1071 const struct flow *f = &match->flow;
1072 bool skip_type = false;
1074 bool skip_proto = false;
1078 BUILD_ASSERT_DECL(FLOW_WC_SEQ == 36);
1080 if (priority != OFP_DEFAULT_PRIORITY) {
1081 ds_put_format(s, "%spriority=%s%d,",
1082 colors.special, colors.end, priority);
1085 format_uint32_masked(s, "pkt_mark", f->pkt_mark, wc->masks.pkt_mark);
1087 if (wc->masks.recirc_id) {
1088 format_uint32_masked(s, "recirc_id", f->recirc_id,
1089 wc->masks.recirc_id);
1092 if (wc->masks.dp_hash) {
1093 format_uint32_masked(s, "dp_hash", f->dp_hash,
1097 if (wc->masks.conj_id) {
1098 ds_put_format(s, "%sconj_id%s=%"PRIu32",",
1099 colors.param, colors.end, f->conj_id);
1102 if (wc->masks.skb_priority) {
1103 ds_put_format(s, "%sskb_priority=%s%#"PRIx32",",
1104 colors.param, colors.end, f->skb_priority);
1107 if (wc->masks.actset_output) {
1108 ds_put_format(s, "%sactset_output=%s", colors.param, colors.end);
1109 ofputil_format_port(f->actset_output, s);
1110 ds_put_char(s, ',');
1113 if (wc->masks.ct_state) {
1114 if (wc->masks.ct_state == UINT16_MAX) {
1115 ds_put_format(s, "%sct_state=%s", colors.param, colors.end);
1117 format_flags(s, ct_state_to_string, f->ct_state, '|');
1119 ds_put_cstr(s, "0"); /* No state. */
1122 format_flags_masked(s, "ct_state", ct_state_to_string,
1123 f->ct_state, wc->masks.ct_state, UINT16_MAX);
1125 ds_put_char(s, ',');
1128 if (wc->masks.ct_zone) {
1129 format_uint16_masked(s, "ct_zone", f->ct_zone, wc->masks.ct_zone);
1132 if (wc->masks.ct_mark) {
1133 format_uint32_masked(s, "ct_mark", f->ct_mark, wc->masks.ct_mark);
1136 if (!ovs_u128_is_zero(wc->masks.ct_label)) {
1137 format_ct_label_masked(s, &f->ct_label, &wc->masks.ct_label);
1140 if (wc->masks.dl_type) {
1142 if (f->dl_type == htons(ETH_TYPE_IP)) {
1143 if (wc->masks.nw_proto) {
1145 if (f->nw_proto == IPPROTO_ICMP) {
1146 ds_put_format(s, "%sicmp%s,", colors.value, colors.end);
1147 } else if (f->nw_proto == IPPROTO_IGMP) {
1148 ds_put_format(s, "%sigmp%s,", colors.value, colors.end);
1149 } else if (f->nw_proto == IPPROTO_TCP) {
1150 ds_put_format(s, "%stcp%s,", colors.value, colors.end);
1151 } else if (f->nw_proto == IPPROTO_UDP) {
1152 ds_put_format(s, "%sudp%s,", colors.value, colors.end);
1153 } else if (f->nw_proto == IPPROTO_SCTP) {
1154 ds_put_format(s, "%ssctp%s,", colors.value, colors.end);
1156 ds_put_format(s, "%sip%s,", colors.value, colors.end);
1160 ds_put_format(s, "%sip%s,", colors.value, colors.end);
1162 } else if (f->dl_type == htons(ETH_TYPE_IPV6)) {
1163 if (wc->masks.nw_proto) {
1165 if (f->nw_proto == IPPROTO_ICMPV6) {
1166 ds_put_format(s, "%sicmp6%s,", colors.value, colors.end);
1167 } else if (f->nw_proto == IPPROTO_TCP) {
1168 ds_put_format(s, "%stcp6%s,", colors.value, colors.end);
1169 } else if (f->nw_proto == IPPROTO_UDP) {
1170 ds_put_format(s, "%sudp6%s,", colors.value, colors.end);
1171 } else if (f->nw_proto == IPPROTO_SCTP) {
1172 ds_put_format(s, "%ssctp6%s,", colors.value, colors.end);
1174 ds_put_format(s, "%sipv6%s,", colors.value, colors.end);
1178 ds_put_format(s, "%sipv6%s,", colors.value, colors.end);
1180 } else if (f->dl_type == htons(ETH_TYPE_ARP)) {
1181 ds_put_format(s, "%sarp%s,", colors.value, colors.end);
1182 } else if (f->dl_type == htons(ETH_TYPE_RARP)) {
1183 ds_put_format(s, "%srarp%s,", colors.value, colors.end);
1184 } else if (f->dl_type == htons(ETH_TYPE_MPLS)) {
1185 ds_put_format(s, "%smpls%s,", colors.value, colors.end);
1186 } else if (f->dl_type == htons(ETH_TYPE_MPLS_MCAST)) {
1187 ds_put_format(s, "%smplsm%s,", colors.value, colors.end);
1192 for (i = 0; i < FLOW_N_REGS; i++) {
1193 #define REGNAME_LEN 20
1194 char regname[REGNAME_LEN];
1195 if (snprintf(regname, REGNAME_LEN, "reg%d", i) >= REGNAME_LEN) {
1196 strcpy(regname, "reg?");
1198 format_uint32_masked(s, regname, f->regs[i], wc->masks.regs[i]);
1201 format_flow_tunnel(s, match);
1203 format_be64_masked(s, "metadata", f->metadata, wc->masks.metadata);
1205 if (wc->masks.in_port.ofp_port) {
1206 ds_put_format(s, "%sin_port=%s", colors.param, colors.end);
1207 ofputil_format_port(f->in_port.ofp_port, s);
1208 ds_put_char(s, ',');
1210 if (wc->masks.vlan_tci) {
1211 ovs_be16 vid_mask = wc->masks.vlan_tci & htons(VLAN_VID_MASK);
1212 ovs_be16 pcp_mask = wc->masks.vlan_tci & htons(VLAN_PCP_MASK);
1213 ovs_be16 cfi = wc->masks.vlan_tci & htons(VLAN_CFI);
1215 if (cfi && f->vlan_tci & htons(VLAN_CFI)
1216 && (!vid_mask || vid_mask == htons(VLAN_VID_MASK))
1217 && (!pcp_mask || pcp_mask == htons(VLAN_PCP_MASK))
1218 && (vid_mask || pcp_mask)) {
1220 ds_put_format(s, "%sdl_vlan=%s%"PRIu16",", colors.param,
1221 colors.end, vlan_tci_to_vid(f->vlan_tci));
1224 ds_put_format(s, "%sdl_vlan_pcp=%s%d,", colors.param,
1225 colors.end, vlan_tci_to_pcp(f->vlan_tci));
1227 } else if (wc->masks.vlan_tci == htons(0xffff)) {
1228 ds_put_format(s, "%svlan_tci=%s0x%04"PRIx16",", colors.param,
1229 colors.end, ntohs(f->vlan_tci));
1231 ds_put_format(s, "%svlan_tci=%s0x%04"PRIx16"/0x%04"PRIx16",",
1232 colors.param, colors.end,
1233 ntohs(f->vlan_tci), ntohs(wc->masks.vlan_tci));
1236 format_eth_masked(s, "dl_src", f->dl_src, wc->masks.dl_src);
1237 format_eth_masked(s, "dl_dst", f->dl_dst, wc->masks.dl_dst);
1238 if (!skip_type && wc->masks.dl_type) {
1239 ds_put_format(s, "%sdl_type=%s0x%04"PRIx16",",
1240 colors.param, colors.end, ntohs(f->dl_type));
1242 if (f->dl_type == htons(ETH_TYPE_IPV6)) {
1243 format_ipv6_netmask(s, "ipv6_src", &f->ipv6_src, &wc->masks.ipv6_src);
1244 format_ipv6_netmask(s, "ipv6_dst", &f->ipv6_dst, &wc->masks.ipv6_dst);
1245 if (wc->masks.ipv6_label) {
1246 if (wc->masks.ipv6_label == OVS_BE32_MAX) {
1247 ds_put_format(s, "%sipv6_label=%s0x%05"PRIx32",",
1248 colors.param, colors.end,
1249 ntohl(f->ipv6_label));
1251 ds_put_format(s, "%sipv6_label=%s0x%05"PRIx32"/0x%05"PRIx32",",
1252 colors.param, colors.end, ntohl(f->ipv6_label),
1253 ntohl(wc->masks.ipv6_label));
1256 } else if (f->dl_type == htons(ETH_TYPE_ARP) ||
1257 f->dl_type == htons(ETH_TYPE_RARP)) {
1258 format_ip_netmask(s, "arp_spa", f->nw_src, wc->masks.nw_src);
1259 format_ip_netmask(s, "arp_tpa", f->nw_dst, wc->masks.nw_dst);
1261 format_ip_netmask(s, "nw_src", f->nw_src, wc->masks.nw_src);
1262 format_ip_netmask(s, "nw_dst", f->nw_dst, wc->masks.nw_dst);
1264 if (!skip_proto && wc->masks.nw_proto) {
1265 if (f->dl_type == htons(ETH_TYPE_ARP) ||
1266 f->dl_type == htons(ETH_TYPE_RARP)) {
1267 ds_put_format(s, "%sarp_op=%s%"PRIu8",",
1268 colors.param, colors.end, f->nw_proto);
1270 ds_put_format(s, "%snw_proto=%s%"PRIu8",",
1271 colors.param, colors.end, f->nw_proto);
1274 if (f->dl_type == htons(ETH_TYPE_ARP) ||
1275 f->dl_type == htons(ETH_TYPE_RARP)) {
1276 format_eth_masked(s, "arp_sha", f->arp_sha, wc->masks.arp_sha);
1277 format_eth_masked(s, "arp_tha", f->arp_tha, wc->masks.arp_tha);
1279 if (wc->masks.nw_tos & IP_DSCP_MASK) {
1280 ds_put_format(s, "%snw_tos=%s%"PRIu8",",
1281 colors.param, colors.end, f->nw_tos & IP_DSCP_MASK);
1283 if (wc->masks.nw_tos & IP_ECN_MASK) {
1284 ds_put_format(s, "%snw_ecn=%s%"PRIu8",",
1285 colors.param, colors.end, f->nw_tos & IP_ECN_MASK);
1287 if (wc->masks.nw_ttl) {
1288 ds_put_format(s, "%snw_ttl=%s%"PRIu8",",
1289 colors.param, colors.end, f->nw_ttl);
1291 if (wc->masks.mpls_lse[0] & htonl(MPLS_LABEL_MASK)) {
1292 ds_put_format(s, "%smpls_label=%s%"PRIu32",", colors.param,
1293 colors.end, mpls_lse_to_label(f->mpls_lse[0]));
1295 if (wc->masks.mpls_lse[0] & htonl(MPLS_TC_MASK)) {
1296 ds_put_format(s, "%smpls_tc=%s%"PRIu8",", colors.param, colors.end,
1297 mpls_lse_to_tc(f->mpls_lse[0]));
1299 if (wc->masks.mpls_lse[0] & htonl(MPLS_TTL_MASK)) {
1300 ds_put_format(s, "%smpls_ttl=%s%"PRIu8",", colors.param, colors.end,
1301 mpls_lse_to_ttl(f->mpls_lse[0]));
1303 if (wc->masks.mpls_lse[0] & htonl(MPLS_BOS_MASK)) {
1304 ds_put_format(s, "%smpls_bos=%s%"PRIu8",", colors.param, colors.end,
1305 mpls_lse_to_bos(f->mpls_lse[0]));
1307 format_be32_masked(s, "mpls_lse1", f->mpls_lse[1], wc->masks.mpls_lse[1]);
1308 format_be32_masked(s, "mpls_lse2", f->mpls_lse[2], wc->masks.mpls_lse[2]);
1310 switch (wc->masks.nw_frag) {
1311 case FLOW_NW_FRAG_ANY | FLOW_NW_FRAG_LATER:
1312 ds_put_format(s, "%snw_frag=%s%s,", colors.param, colors.end,
1313 f->nw_frag & FLOW_NW_FRAG_ANY
1314 ? (f->nw_frag & FLOW_NW_FRAG_LATER ? "later" : "first")
1315 : (f->nw_frag & FLOW_NW_FRAG_LATER ? "<error>" : "no"));
1318 case FLOW_NW_FRAG_ANY:
1319 ds_put_format(s, "%snw_frag=%s%s,", colors.param, colors.end,
1320 f->nw_frag & FLOW_NW_FRAG_ANY ? "yes" : "no");
1323 case FLOW_NW_FRAG_LATER:
1324 ds_put_format(s, "%snw_frag=%s%s,", colors.param, colors.end,
1325 f->nw_frag & FLOW_NW_FRAG_LATER ? "later" : "not_later");
1328 if (f->dl_type == htons(ETH_TYPE_IP) &&
1329 f->nw_proto == IPPROTO_ICMP) {
1330 format_be16_masked(s, "icmp_type", f->tp_src, wc->masks.tp_src);
1331 format_be16_masked(s, "icmp_code", f->tp_dst, wc->masks.tp_dst);
1332 } else if (f->dl_type == htons(ETH_TYPE_IP) &&
1333 f->nw_proto == IPPROTO_IGMP) {
1334 format_be16_masked(s, "igmp_type", f->tp_src, wc->masks.tp_src);
1335 format_be16_masked(s, "igmp_code", f->tp_dst, wc->masks.tp_dst);
1336 } else if (f->dl_type == htons(ETH_TYPE_IPV6) &&
1337 f->nw_proto == IPPROTO_ICMPV6) {
1338 format_be16_masked(s, "icmp_type", f->tp_src, wc->masks.tp_src);
1339 format_be16_masked(s, "icmp_code", f->tp_dst, wc->masks.tp_dst);
1340 format_ipv6_netmask(s, "nd_target", &f->nd_target,
1341 &wc->masks.nd_target);
1342 format_eth_masked(s, "nd_sll", f->arp_sha, wc->masks.arp_sha);
1343 format_eth_masked(s, "nd_tll", f->arp_tha, wc->masks.arp_tha);
1345 format_be16_masked(s, "tp_src", f->tp_src, wc->masks.tp_src);
1346 format_be16_masked(s, "tp_dst", f->tp_dst, wc->masks.tp_dst);
1348 if (is_ip_any(f) && f->nw_proto == IPPROTO_TCP && wc->masks.tcp_flags) {
1349 format_flags_masked(s, "tcp_flags", packet_tcp_flag_to_string,
1350 ntohs(f->tcp_flags), TCP_FLAGS(wc->masks.tcp_flags),
1351 TCP_FLAGS(OVS_BE16_MAX));
1354 if (s->length > start_len) {
1359 /* Converts 'match' to a string and returns the string. If 'priority' is
1360 * different from OFP_DEFAULT_PRIORITY, includes it in the string. The caller
1361 * must free the string (with free()). */
1363 match_to_string(const struct match *match, int priority)
1365 struct ds s = DS_EMPTY_INITIALIZER;
1366 match_format(match, &s, priority);
1367 return ds_steal_cstr(&s);
1371 match_print(const struct match *match)
1373 char *s = match_to_string(match, OFP_DEFAULT_PRIORITY);
1378 /* Initializes 'dst' as a copy of 'src'. The caller must eventually free 'dst'
1379 * with minimatch_destroy(). */
1381 minimatch_init(struct minimatch *dst, const struct match *src)
1383 struct miniflow tmp;
1385 miniflow_map_init(&tmp, &src->wc.masks);
1386 /* Allocate two consecutive miniflows. */
1387 miniflow_alloc(dst->flows, 2, &tmp);
1388 miniflow_init(dst->flow, &src->flow);
1389 minimask_init(dst->mask, &src->wc);
1392 /* Initializes 'dst' as a copy of 'src'. The caller must eventually free 'dst'
1393 * with minimatch_destroy(). */
1395 minimatch_clone(struct minimatch *dst, const struct minimatch *src)
1397 /* Allocate two consecutive miniflows. */
1398 size_t data_size = miniflow_alloc(dst->flows, 2, &src->mask->masks);
1400 memcpy(miniflow_values(dst->flow),
1401 miniflow_get_values(src->flow), data_size);
1402 memcpy(miniflow_values(&dst->mask->masks),
1403 miniflow_get_values(&src->mask->masks), data_size);
1406 /* Initializes 'dst' with the data in 'src', destroying 'src'. The caller must
1407 * eventually free 'dst' with minimatch_destroy(). */
1409 minimatch_move(struct minimatch *dst, struct minimatch *src)
1411 dst->flow = src->flow;
1412 dst->mask = src->mask;
1415 /* Frees any memory owned by 'match'. Does not free the storage in which
1416 * 'match' itself resides; the caller is responsible for that. */
1418 minimatch_destroy(struct minimatch *match)
1423 /* Initializes 'dst' as a copy of 'src'. */
1425 minimatch_expand(const struct minimatch *src, struct match *dst)
1427 miniflow_expand(src->flow, &dst->flow);
1428 minimask_expand(src->mask, &dst->wc);
1429 memset(&dst->tun_md, 0, sizeof dst->tun_md);
1432 /* Returns true if 'a' and 'b' match the same packets, false otherwise. */
1434 minimatch_equal(const struct minimatch *a, const struct minimatch *b)
1436 return minimask_equal(a->mask, b->mask)
1437 && miniflow_equal(a->flow, b->flow);
1440 /* Returns true if 'target' satisifies 'match', that is, if each bit for which
1441 * 'match' specifies a particular value has the correct value in 'target'.
1443 * This function is equivalent to miniflow_equal_flow_in_minimask(&match->flow,
1444 * target, &match->mask) but it is faster because of the invariant that
1445 * match->flow.map and match->mask.map are the same. */
1447 minimatch_matches_flow(const struct minimatch *match,
1448 const struct flow *target)
1450 const uint64_t *flowp = miniflow_get_values(match->flow);
1451 const uint64_t *maskp = miniflow_get_values(&match->mask->masks);
1454 FLOWMAP_FOR_EACH_INDEX(idx, match->flow->map) {
1455 if ((*flowp++ ^ flow_u64_value(target, idx)) & *maskp++) {
1463 /* Appends a string representation of 'match' to 's'. If 'priority' is
1464 * different from OFP_DEFAULT_PRIORITY, includes it in 's'. */
1466 minimatch_format(const struct minimatch *match, struct ds *s, int priority)
1468 struct match megamatch;
1470 minimatch_expand(match, &megamatch);
1471 match_format(&megamatch, s, priority);
1474 /* Converts 'match' to a string and returns the string. If 'priority' is
1475 * different from OFP_DEFAULT_PRIORITY, includes it in the string. The caller
1476 * must free the string (with free()). */
1478 minimatch_to_string(const struct minimatch *match, int priority)
1480 struct match megamatch;
1482 minimatch_expand(match, &megamatch);
1483 return match_to_string(&megamatch, priority);