/* * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 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 OFPROTO_H #define OFPROTO_H 1 #include #include #include #include #include #include "cfm.h" #include "classifier.h" #include "flow.h" #include "openvswitch/meta-flow.h" #include "netflow.h" #include "rstp.h" #include "smap.h" #include "sset.h" #include "stp.h" #include "lacp.h" #ifdef __cplusplus extern "C" { #endif struct bfd_cfg; struct cfm_settings; struct cls_rule; struct netdev; struct netdev_stats; struct ofport; struct ofproto; struct shash; struct simap; struct smap; struct netdev_stats; struct ovs_list; struct lldp_status; struct aa_settings; struct aa_mapping_settings; /* Needed for the lock annotations. */ extern struct ovs_mutex ofproto_mutex; struct ofproto_controller_info { bool is_connected; enum ofp12_controller_role role; struct smap pairs; }; struct ofproto_sflow_options { struct sset targets; uint32_t sampling_rate; uint32_t polling_interval; uint32_t header_len; uint32_t sub_id; char *agent_device; char *control_ip; }; struct ofproto_ipfix_bridge_exporter_options { struct sset targets; uint32_t sampling_rate; uint32_t obs_domain_id; /* Bridge-wide Observation Domain ID. */ uint32_t obs_point_id; /* Bridge-wide Observation Point ID. */ uint32_t cache_active_timeout; uint32_t cache_max_flows; bool enable_tunnel_sampling; bool enable_input_sampling; bool enable_output_sampling; char *virtual_obs_id; }; struct ofproto_ipfix_flow_exporter_options { uint32_t collector_set_id; struct sset targets; uint32_t cache_active_timeout; uint32_t cache_max_flows; bool enable_tunnel_sampling; char *virtual_obs_id; }; struct ofproto_rstp_status { bool enabled; /* If false, ignore other members. */ rstp_identifier root_id; rstp_identifier bridge_id; rstp_identifier designated_id; uint32_t root_path_cost; uint16_t designated_port_id; uint16_t bridge_port_id; }; struct ofproto_rstp_settings { rstp_identifier address; uint16_t priority; uint32_t ageing_time; enum rstp_force_protocol_version force_protocol_version; uint16_t bridge_forward_delay; uint16_t bridge_max_age; uint16_t transmit_hold_count; }; struct ofproto_port_rstp_status { bool enabled; /* If false, ignore other members. */ uint16_t port_id; enum rstp_port_role role; enum rstp_state state; rstp_identifier designated_bridge_id; uint16_t designated_port_id; uint32_t designated_path_cost; int tx_count; /* Number of BPDUs transmitted. */ int rx_count; /* Number of valid BPDUs received. */ int error_count; /* Number of bad BPDUs received. */ int uptime; }; struct ofproto_port_rstp_settings { bool enable; uint16_t port_num; /* In the range 1-4095, inclusive. */ uint8_t priority; uint32_t path_cost; bool admin_edge_port; bool auto_edge; bool mcheck; uint8_t admin_p2p_mac_state; bool admin_port_state; }; struct ofproto_stp_settings { stp_identifier system_id; uint16_t priority; uint16_t hello_time; uint16_t max_age; uint16_t fwd_delay; }; struct ofproto_stp_status { bool enabled; /* If false, ignore other members. */ stp_identifier bridge_id; stp_identifier designated_root; int root_path_cost; }; struct ofproto_port_stp_settings { bool enable; uint8_t port_num; /* In the range 1-255, inclusive. */ uint8_t priority; uint16_t path_cost; }; struct ofproto_port_stp_status { bool enabled; /* If false, ignore other members. */ int port_id; enum stp_state state; unsigned int sec_in_state; enum stp_role role; }; struct ofproto_port_stp_stats { bool enabled; /* If false, ignore other members. */ int tx_count; /* Number of BPDUs transmitted. */ int rx_count; /* Number of valid BPDUs received. */ int error_count; /* Number of bad BPDUs received. */ }; struct ofproto_port_queue { uint32_t queue; /* Queue ID. */ uint8_t dscp; /* DSCP bits (e.g. [0, 63]). */ }; struct ofproto_mcast_snooping_settings { bool flood_unreg; /* If true, flood unregistered packets to all all ports. If false, send only to ports connected to multicast routers. */ unsigned int idle_time; /* Entry is removed after the idle time * in seconds. */ unsigned int max_entries; /* Size of the multicast snooping table. */ }; struct ofproto_mcast_snooping_port_settings { bool flood; /* If true, flood multicast traffic */ bool flood_reports; /* If true, flood Reports traffic */ }; /* How the switch should act if the controller cannot be contacted. */ enum ofproto_fail_mode { OFPROTO_FAIL_SECURE, /* Preserve flow table. */ OFPROTO_FAIL_STANDALONE /* Act as a standalone switch. */ }; enum ofproto_band { OFPROTO_IN_BAND, /* In-band connection to controller. */ OFPROTO_OUT_OF_BAND /* Out-of-band connection to controller. */ }; /* ofproto supports two kinds of OpenFlow connections: * * - "Primary" connections to ordinary OpenFlow controllers. ofproto * maintains persistent connections to these controllers and by default * sends them asynchronous messages such as packet-ins. * * - "Service" connections, e.g. from ovs-ofctl. When these connections * drop, it is the other side's responsibility to reconnect them if * necessary. ofproto does not send them asynchronous messages by default. */ enum ofconn_type { OFCONN_PRIMARY, /* An ordinary OpenFlow controller. */ OFCONN_SERVICE /* A service connection, e.g. "ovs-ofctl". */ }; const char *ofconn_type_to_string(enum ofconn_type); /* Configuration for an OpenFlow controller. */ struct ofproto_controller { enum ofconn_type type; /* Primary or service controller. */ int max_backoff; /* Maximum reconnection backoff, in seconds. */ int probe_interval; /* Max idle time before probing, in seconds. */ enum ofproto_band band; /* In-band or out-of-band? */ bool enable_async_msgs; /* Initially enable asynchronous messages? */ uint32_t allowed_versions; /* OpenFlow protocol versions that may * be negotiated for a session. */ /* OpenFlow packet-in rate-limiting. */ int max_pktq_size; /* Maximum number of packet-in to be queued. */ int rate_limit; /* Max packet-in rate in packets per second. */ int burst_limit; /* Limit on accumulating packet credits. */ uint8_t dscp; /* DSCP value for controller connection. */ }; void ofproto_enumerate_types(struct sset *types); const char *ofproto_normalize_type(const char *); int ofproto_enumerate_names(const char *type, struct sset *names); void ofproto_parse_name(const char *name, char **dp_name, char **dp_type); /* An interface hint element, which is used by ofproto_init() to * describe the caller's understanding of the startup state. */ struct iface_hint { char *br_name; /* Name of owning bridge. */ char *br_type; /* Type of owning bridge. */ ofp_port_t ofp_port; /* OpenFlow port number. */ }; void ofproto_init(const struct shash *iface_hints); int ofproto_type_run(const char *datapath_type); void ofproto_type_wait(const char *datapath_type); int ofproto_create(const char *datapath, const char *datapath_type, struct ofproto **ofprotop) OVS_EXCLUDED(ofproto_mutex); void ofproto_destroy(struct ofproto *, bool del); int ofproto_delete(const char *name, const char *type); int ofproto_run(struct ofproto *); void ofproto_wait(struct ofproto *); bool ofproto_is_alive(const struct ofproto *); void ofproto_get_memory_usage(const struct ofproto *, struct simap *); void ofproto_type_get_memory_usage(const char *datapath_type, struct simap *); /* A port within an OpenFlow switch. * * 'name' and 'type' are suitable for passing to netdev_open(). */ struct ofproto_port { char *name; /* Network device name, e.g. "eth0". */ char *type; /* Network device type, e.g. "system". */ ofp_port_t ofp_port; /* OpenFlow port number. */ }; void ofproto_port_clone(struct ofproto_port *, const struct ofproto_port *); void ofproto_port_destroy(struct ofproto_port *); struct ofproto_port_dump { const struct ofproto *ofproto; int error; void *state; }; void ofproto_port_dump_start(struct ofproto_port_dump *, const struct ofproto *); bool ofproto_port_dump_next(struct ofproto_port_dump *, struct ofproto_port *); int ofproto_port_dump_done(struct ofproto_port_dump *); /* Iterates through each OFPROTO_PORT in OFPROTO, using DUMP as state. * * Arguments all have pointer type. * * If you break out of the loop, then you need to free the dump structure by * hand using ofproto_port_dump_done(). */ #define OFPROTO_PORT_FOR_EACH(OFPROTO_PORT, DUMP, OFPROTO) \ for (ofproto_port_dump_start(DUMP, OFPROTO); \ (ofproto_port_dump_next(DUMP, OFPROTO_PORT) \ ? true \ : (ofproto_port_dump_done(DUMP), false)); \ ) #define OFPROTO_FLOW_LIMIT_DEFAULT 200000 #define OFPROTO_MAX_IDLE_DEFAULT 10000 /* ms */ #define OFPROTO_MAX_REVALIDATOR_DEFAULT 500 /* ms */ #define OFPROTO_MIN_REVALIDATE_PPS_DEFAULT 5 const char *ofproto_port_open_type(const struct ofproto *, const char *port_type); int ofproto_port_add(struct ofproto *, struct netdev *, ofp_port_t *ofp_portp); int ofproto_port_del(struct ofproto *, ofp_port_t ofp_port); void ofproto_port_set_config(struct ofproto *, ofp_port_t ofp_port, const struct smap *cfg); int ofproto_port_get_stats(const struct ofport *, struct netdev_stats *stats); int ofproto_vport_get_status(const struct ofproto *, ofp_port_t ofp_port, char **errp); int ofproto_port_query_by_name(const struct ofproto *, const char *devname, struct ofproto_port *); /* Top-level configuration. */ uint64_t ofproto_get_datapath_id(const struct ofproto *); void ofproto_set_datapath_id(struct ofproto *, uint64_t datapath_id); void ofproto_set_controllers(struct ofproto *, struct shash *controllers); void ofproto_set_fail_mode(struct ofproto *, enum ofproto_fail_mode fail_mode); void ofproto_reconnect_controllers(struct ofproto *); void ofproto_set_extra_in_band_remotes(struct ofproto *, const struct sockaddr_in *, size_t n); void ofproto_set_in_band_queue(struct ofproto *, int queue_id); void ofproto_set_bundle_idle_timeout(unsigned timeout); void ofproto_set_flow_limit(unsigned limit); void ofproto_set_max_idle(unsigned max_idle); void ofproto_set_max_revalidator(unsigned max_revalidator); void ofproto_set_min_revalidate_pps(unsigned min_revalidate_pps); void ofproto_set_forward_bpdu(struct ofproto *, bool forward_bpdu); void ofproto_set_mac_table_config(struct ofproto *, unsigned idle_time, size_t max_entries); int ofproto_set_mcast_snooping(struct ofproto *ofproto, const struct ofproto_mcast_snooping_settings *s); int ofproto_port_set_mcast_snooping(struct ofproto *ofproto, void *aux, const struct ofproto_mcast_snooping_port_settings *s); void ofproto_set_threads(int n_handlers, int n_revalidators); void ofproto_type_set_config(const char *type, const struct smap *other_config); void ofproto_set_dp_desc(struct ofproto *, const char *dp_desc); void ofproto_set_serial_desc(struct ofproto *p, const char *serial_desc); int ofproto_set_snoops(struct ofproto *, const struct sset *snoops); int ofproto_set_netflow(struct ofproto *, const struct netflow_options *nf_options); int ofproto_set_sflow(struct ofproto *, const struct ofproto_sflow_options *); int ofproto_set_ipfix(struct ofproto *, const struct ofproto_ipfix_bridge_exporter_options *, const struct ofproto_ipfix_flow_exporter_options *, size_t); void ofproto_set_flow_restore_wait(bool flow_restore_wait_db); bool ofproto_get_flow_restore_wait(void); int ofproto_set_stp(struct ofproto *, const struct ofproto_stp_settings *); int ofproto_get_stp_status(struct ofproto *, struct ofproto_stp_status *); int ofproto_set_rstp(struct ofproto *, const struct ofproto_rstp_settings *); int ofproto_get_rstp_status(struct ofproto *, struct ofproto_rstp_status *); void ofproto_set_vlan_limit(int vlan_limit); void ofproto_ct_set_zone_timeout_policy(const char *datapath_type, uint16_t zone, struct simap *timeout_policy); void ofproto_ct_del_zone_timeout_policy(const char *datapath_type, uint16_t zone); void ofproto_get_datapath_cap(const char *datapath_type, struct smap *dp_cap); /* Configuration of ports. */ void ofproto_port_unregister(struct ofproto *, ofp_port_t ofp_port); void ofproto_port_clear_cfm(struct ofproto *, ofp_port_t ofp_port); void ofproto_port_set_cfm(struct ofproto *, ofp_port_t ofp_port, const struct cfm_settings *); void ofproto_port_set_bfd(struct ofproto *, ofp_port_t ofp_port, const struct smap *cfg); bool ofproto_port_bfd_status_changed(struct ofproto *, ofp_port_t ofp_port); int ofproto_port_get_bfd_status(struct ofproto *, ofp_port_t ofp_port, struct smap *); int ofproto_port_is_lacp_current(struct ofproto *, ofp_port_t ofp_port); int ofproto_port_get_lacp_stats(const struct ofport *, struct lacp_slave_stats *); int ofproto_port_set_stp(struct ofproto *, ofp_port_t ofp_port, const struct ofproto_port_stp_settings *); int ofproto_port_get_stp_status(struct ofproto *, ofp_port_t ofp_port, struct ofproto_port_stp_status *); int ofproto_port_get_stp_stats(struct ofproto *, ofp_port_t ofp_port, struct ofproto_port_stp_stats *); int ofproto_port_set_queues(struct ofproto *, ofp_port_t ofp_port, const struct ofproto_port_queue *, size_t n_queues); int ofproto_port_get_rstp_status(struct ofproto *, ofp_port_t ofp_port, struct ofproto_port_rstp_status *); int ofproto_port_set_rstp(struct ofproto *, ofp_port_t ofp_port, const struct ofproto_port_rstp_settings *); /* The behaviour of the port regarding VLAN handling */ enum port_vlan_mode { /* This port is an access port. 'vlan' is the VLAN ID. 'trunks' is * ignored. */ PORT_VLAN_ACCESS, /* This port is a trunk. 'trunks' is the set of trunks. 'vlan' is * ignored. */ PORT_VLAN_TRUNK, /* Untagged incoming packets are part of 'vlan', as are incoming packets * tagged with 'vlan'. Outgoing packets tagged with 'vlan' stay tagged. * Other VLANs in 'trunks' are trunked. */ PORT_VLAN_NATIVE_TAGGED, /* Untagged incoming packets are part of 'vlan', as are incoming packets * tagged with 'vlan'. Outgoing packets tagged with 'vlan' are untagged. * Other VLANs in 'trunks' are trunked. */ PORT_VLAN_NATIVE_UNTAGGED, /* 802.1q tunnel port. Incoming packets are added an outer vlan tag * 'vlan'. If 'cvlans' is set, only allows VLANs in 'cvlans'. */ PORT_VLAN_DOT1Q_TUNNEL }; /* The behaviour of the port regarding priority tags */ enum port_priority_tags_mode { PORT_PRIORITY_TAGS_NEVER = 0, PORT_PRIORITY_TAGS_IF_NONZERO, PORT_PRIORITY_TAGS_ALWAYS, }; /* The behaviour of the port regarding priority tags */ /* Configuration of bundles. */ struct ofproto_bundle_settings { char *name; /* For use in log messages. */ ofp_port_t *slaves; /* OpenFlow port numbers for slaves. */ size_t n_slaves; enum port_vlan_mode vlan_mode; /* Selects mode for vlan and trunks */ uint16_t qinq_ethtype; int vlan; /* VLAN VID, except for PORT_VLAN_TRUNK. */ unsigned long *trunks; /* vlan_bitmap, except for PORT_VLAN_ACCESS. */ unsigned long *cvlans; enum port_priority_tags_mode use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */ struct bond_settings *bond; /* Must be nonnull iff if n_slaves > 1. */ struct lacp_settings *lacp; /* Nonnull to enable LACP. */ struct lacp_slave_settings *lacp_slaves; /* Array of n_slaves elements. */ bool protected; /* Protected port mode */ }; int ofproto_bundle_register(struct ofproto *, void *aux, const struct ofproto_bundle_settings *); int ofproto_bundle_unregister(struct ofproto *, void *aux); /* Configuration of mirrors. */ struct ofproto_mirror_settings { /* Name for log messages. */ char *name; /* Bundles that select packets for mirroring upon ingress. */ void **srcs; /* A set of registered ofbundle handles. */ size_t n_srcs; /* Bundles that select packets for mirroring upon egress. */ void **dsts; /* A set of registered ofbundle handles. */ size_t n_dsts; /* VLANs of packets to select for mirroring. */ unsigned long *src_vlans; /* vlan_bitmap, NULL selects all VLANs. */ /* Output (mutually exclusive). */ void *out_bundle; /* A registered ofbundle handle or NULL. */ uint16_t out_vlan; /* Output VLAN, only if out_bundle is NULL. */ uint16_t snaplen; /* Max packet size of a mirrored packet in byte, set to 0 equals 65535. */ }; int ofproto_mirror_register(struct ofproto *, void *aux, const struct ofproto_mirror_settings *); int ofproto_mirror_unregister(struct ofproto *, void *aux); int ofproto_mirror_get_stats(struct ofproto *, void *aux, uint64_t *packets, uint64_t *bytes); void ofproto_port_set_lldp(struct ofproto *ofproto, ofp_port_t ofp_port, const struct smap *cfg); int ofproto_set_aa(struct ofproto *ofproto, void *aux, const struct aa_settings *s); int ofproto_aa_mapping_register(struct ofproto *ofproto, void *aux, const struct aa_mapping_settings *s); int ofproto_aa_mapping_unregister(struct ofproto *ofproto, void *aux); int ofproto_aa_vlan_get_queued(struct ofproto *ofproto, struct ovs_list *list); unsigned int ofproto_aa_vlan_get_queue_size(struct ofproto *ofproto); int ofproto_set_flood_vlans(struct ofproto *, unsigned long *flood_vlans); bool ofproto_is_mirror_output_bundle(const struct ofproto *, void *aux); /* Configuration of OpenFlow tables. */ struct ofproto_table_settings { char *name; /* Name exported via OpenFlow or NULL. */ unsigned int max_flows; /* Maximum number of flows or UINT_MAX. */ /* These members, together with OpenFlow OFPT_TABLE_MOD, determine the * handling of an attempt to add a flow that would cause the table to have * more than 'max_flows' flows: * * - If 'enable_eviction' is false and OFPT_TABLE_MOD does not enable * eviction, overflows will be rejected with an error. * * - If 'enable_eviction' is true or OFPT_TABLE_MOD enables eviction, an * overflow will cause a flow to be removed. The flow to be removed * is chosen to give fairness among groups distinguished by different * values for the 'n_groups' subfields within 'groups'. */ bool enable_eviction; struct mf_subfield *groups; size_t n_groups; /* * Fields for which prefix trie lookup is maintained. */ unsigned int n_prefix_fields; enum mf_field_id prefix_fields[CLS_MAX_TRIES]; }; extern const enum mf_field_id default_prefix_fields[2]; BUILD_ASSERT_DECL(ARRAY_SIZE(default_prefix_fields) <= CLS_MAX_TRIES); int ofproto_get_n_tables(const struct ofproto *); uint8_t ofproto_get_n_visible_tables(const struct ofproto *); void ofproto_configure_table(struct ofproto *, int table_id, const struct ofproto_table_settings *); /* Configuration querying. */ bool ofproto_has_snoops(const struct ofproto *); void ofproto_get_snoops(const struct ofproto *, struct sset *); void ofproto_get_all_flows(struct ofproto *p, struct ds *, bool); void ofproto_get_netflow_ids(const struct ofproto *, uint8_t *engine_type, uint8_t *engine_id); void ofproto_get_ofproto_controller_info(const struct ofproto *, struct shash *); void ofproto_free_ofproto_controller_info(struct shash *); bool ofproto_port_cfm_status_changed(struct ofproto *, ofp_port_t ofp_port); int ofproto_port_get_cfm_status(const struct ofproto *, ofp_port_t ofp_port, struct cfm_status *); /* Table configuration */ enum ofputil_table_miss ofproto_table_get_miss_config(const struct ofproto *, uint8_t table_id); #ifdef __cplusplus } #endif #endif /* ofproto.h */