/* * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef MATCH_H #define MATCH_H 1 #include "flow.h" #include "packets.h" #include "tun-metadata.h" struct ds; /* A flow classification match. * * Use one of the match_*() functions to initialize a "struct match". * * The match_*() functions below maintain the following important invariant. * If a bit or a field is wildcarded in 'wc', then the corresponding bit or * field in 'flow' is set to all-0-bits. (The match_zero_wildcarded_fields() * function can be used to restore this invariant after adding wildcards.) */ struct match { struct flow flow; struct flow_wildcards wc; struct tun_metadata_allocation tun_md; }; /* Initializer for a "struct match" that matches every packet. */ #define MATCH_CATCHALL_INITIALIZER { .flow = { .dl_type = 0 } } void match_init(struct match *, const struct flow *, const struct flow_wildcards *); void match_wc_init(struct match *match, const struct flow *flow); void match_init_catchall(struct match *); void match_zero_wildcarded_fields(struct match *); void match_set_dp_hash(struct match *, uint32_t value); void match_set_dp_hash_masked(struct match *, uint32_t value, uint32_t mask); void match_set_recirc_id(struct match *, uint32_t value); void match_set_conj_id(struct match *, uint32_t value); void match_set_reg(struct match *, unsigned int reg_idx, uint32_t value); void match_set_reg_masked(struct match *, unsigned int reg_idx, uint32_t value, uint32_t mask); void match_set_xreg(struct match *, unsigned int xreg_idx, uint64_t value); void match_set_xreg_masked(struct match *, unsigned int xreg_idx, uint64_t value, uint64_t mask); void match_set_actset_output(struct match *, ofp_port_t actset_output); void match_set_metadata(struct match *, ovs_be64 metadata); void match_set_metadata_masked(struct match *, ovs_be64 metadata, ovs_be64 mask); void match_set_tun_id(struct match *, ovs_be64 tun_id); void match_set_tun_id_masked(struct match *, ovs_be64 tun_id, ovs_be64 mask); void match_set_tun_src(struct match *match, ovs_be32 src); void match_set_tun_src_masked(struct match *match, ovs_be32 src, ovs_be32 mask); void match_set_tun_dst(struct match *match, ovs_be32 dst); void match_set_tun_dst_masked(struct match *match, ovs_be32 dst, ovs_be32 mask); void match_set_tun_ipv6_src(struct match *, const struct in6_addr *); void match_set_tun_ipv6_src_masked(struct match *, const struct in6_addr *, const struct in6_addr *); void match_set_tun_ipv6_dst(struct match *, const struct in6_addr *); void match_set_tun_ipv6_dst_masked(struct match *, const struct in6_addr *, const struct in6_addr *); void match_set_tun_ttl(struct match *match, uint8_t ttl); void match_set_tun_ttl_masked(struct match *match, uint8_t ttl, uint8_t mask); void match_set_tun_tos(struct match *match, uint8_t tos); void match_set_tun_tos_masked(struct match *match, uint8_t tos, uint8_t mask); void match_set_tun_flags(struct match *match, uint16_t flags); void match_set_tun_flags_masked(struct match *match, uint16_t flags, uint16_t mask); void match_set_tun_gbp_id_masked(struct match *match, ovs_be16 gbp_id, ovs_be16 mask); void match_set_tun_gbp_id(struct match *match, ovs_be16 gbp_id); void match_set_tun_gbp_flags_masked(struct match *match, uint8_t flags, uint8_t mask); void match_set_tun_gbp_flags(struct match *match, uint8_t flags); void match_set_in_port(struct match *, ofp_port_t ofp_port); void match_set_pkt_mark(struct match *, uint32_t pkt_mark); void match_set_pkt_mark_masked(struct match *, uint32_t pkt_mark, uint32_t mask); void match_set_ct_state(struct match *, uint32_t ct_state); void match_set_ct_state_masked(struct match *, uint32_t ct_state, uint32_t mask); void match_set_ct_zone(struct match *, uint16_t ct_zone); void match_set_ct_mark(struct match *, uint32_t ct_mark); void match_set_ct_mark_masked(struct match *, uint32_t ct_mark, uint32_t mask); void match_set_ct_label(struct match *, ovs_u128 ct_label); void match_set_ct_label_masked(struct match *, ovs_u128 ct_label, ovs_u128 mask); void match_set_skb_priority(struct match *, uint32_t skb_priority); void match_set_dl_type(struct match *, ovs_be16); void match_set_dl_src(struct match *, const struct eth_addr ); void match_set_dl_src_masked(struct match *, const struct eth_addr dl_src, const struct eth_addr mask); void match_set_dl_dst(struct match *, const struct eth_addr); void match_set_dl_dst_masked(struct match *, const struct eth_addr dl_dst, const struct eth_addr mask); void match_set_dl_tci(struct match *, ovs_be16 tci); void match_set_dl_tci_masked(struct match *, ovs_be16 tci, ovs_be16 mask); void match_set_any_vid(struct match *); void match_set_dl_vlan(struct match *, ovs_be16); void match_set_vlan_vid(struct match *, ovs_be16); void match_set_vlan_vid_masked(struct match *, ovs_be16 vid, ovs_be16 mask); void match_set_any_pcp(struct match *); void match_set_dl_vlan_pcp(struct match *, uint8_t); void match_set_any_mpls_lse(struct match *, int idx); void match_set_mpls_lse(struct match *, int idx, ovs_be32); void match_set_any_mpls_label(struct match *, int idx); void match_set_mpls_label(struct match *, int idx, ovs_be32); void match_set_any_mpls_tc(struct match *, int idx); void match_set_mpls_tc(struct match *, int idx, uint8_t); void match_set_any_mpls_bos(struct match *, int idx); void match_set_mpls_bos(struct match *, int idx, uint8_t); void match_set_tp_src(struct match *, ovs_be16); void match_set_mpls_lse(struct match *, int idx, ovs_be32 lse); void match_set_tp_src_masked(struct match *, ovs_be16 port, ovs_be16 mask); void match_set_tp_dst(struct match *, ovs_be16); void match_set_tp_dst_masked(struct match *, ovs_be16 port, ovs_be16 mask); void match_set_tcp_flags(struct match *, ovs_be16); void match_set_tcp_flags_masked(struct match *, ovs_be16 flags, ovs_be16 mask); void match_set_nw_proto(struct match *, uint8_t); void match_set_nw_src(struct match *, ovs_be32); void match_set_nw_src_masked(struct match *, ovs_be32 ip, ovs_be32 mask); void match_set_nw_dst(struct match *, ovs_be32); void match_set_nw_dst_masked(struct match *, ovs_be32 ip, ovs_be32 mask); void match_set_nw_dscp(struct match *, uint8_t); void match_set_nw_ecn(struct match *, uint8_t); void match_set_nw_ttl(struct match *, uint8_t); void match_set_nw_frag(struct match *, uint8_t nw_frag); void match_set_nw_frag_masked(struct match *, uint8_t nw_frag, uint8_t mask); void match_set_icmp_type(struct match *, uint8_t); void match_set_icmp_code(struct match *, uint8_t); void match_set_arp_sha(struct match *, const struct eth_addr); void match_set_arp_sha_masked(struct match *, const struct eth_addr arp_sha, const struct eth_addr mask); void match_set_arp_tha(struct match *, const struct eth_addr); void match_set_arp_tha_masked(struct match *, const struct eth_addr arp_tha, const struct eth_addr mask); void match_set_ipv6_src(struct match *, const struct in6_addr *); void match_set_ipv6_src_masked(struct match *, const struct in6_addr *, const struct in6_addr *); void match_set_ipv6_dst(struct match *, const struct in6_addr *); void match_set_ipv6_dst_masked(struct match *, const struct in6_addr *, const struct in6_addr *); void match_set_ipv6_label(struct match *, ovs_be32); void match_set_ipv6_label_masked(struct match *, ovs_be32, ovs_be32); void match_set_nd_target(struct match *, const struct in6_addr *); void match_set_nd_target_masked(struct match *, const struct in6_addr *, const struct in6_addr *); bool match_equal(const struct match *, const struct match *); uint32_t match_hash(const struct match *, uint32_t basis); void match_init_hidden_fields(struct match *); bool match_has_default_hidden_fields(const struct match *); void match_format(const struct match *, struct ds *, int priority); char *match_to_string(const struct match *, int priority); void match_print(const struct match *); /* Compressed match. */ /* A sparse representation of a "struct match". * * 'flows' is used for allocating both 'flow' and 'mask' with one * miniflow_alloc() call. * * There are two invariants: * * - The same invariant as "struct match", that is, a 1-bit in the 'flow' * must correspond to a 1-bit in 'mask'. * * - 'flow' and 'mask' have the same 'map'. This implies that 'flow' and * 'mask' have the same part of "struct flow" at the same offset into * 'values', which makes minimatch_matches_flow() faster. */ struct minimatch { union { struct { struct miniflow *flow; struct minimask *mask; }; struct miniflow *flows[2]; }; }; void minimatch_init(struct minimatch *, const struct match *); void minimatch_clone(struct minimatch *, const struct minimatch *); void minimatch_move(struct minimatch *dst, struct minimatch *src); void minimatch_destroy(struct minimatch *); void minimatch_expand(const struct minimatch *, struct match *); bool minimatch_equal(const struct minimatch *a, const struct minimatch *b); bool minimatch_matches_flow(const struct minimatch *, const struct flow *); void minimatch_format(const struct minimatch *, struct ds *, int priority); char *minimatch_to_string(const struct minimatch *, int priority); #endif /* match.h */