/* * Copyright (c) 2009, 2010, 2011, 2012 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 "flow.h" #include "netflow.h" #include "sset.h" #include "stp.h" #include "tag.h" #ifdef __cplusplus extern "C" { #endif struct cfm_settings; struct cls_rule; struct netdev; struct ofproto; struct ofport; struct shash; struct simap; struct netdev_stats; struct ofproto_controller_info { bool is_connected; enum nx_role role; struct { const char *keys[4]; const char *values[4]; size_t n; } pairs; }; struct ofexpired { struct flow flow; uint64_t packet_count; /* Packets from subrules. */ uint64_t byte_count; /* Bytes from subrules. */ long long int used; /* Last-used time (0 if never used). */ }; 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_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; 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]). */ }; /* 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. */ }; struct ofproto_controller { char *target; /* e.g. "tcp:127.0.0.1" */ 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? */ /* OpenFlow packet-in rate-limiting. */ 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. */ uint16_t ofp_port; /* OpenFlow port number. */ }; void ofproto_init(const struct shash *iface_hints); int ofproto_type_run(const char *datapath_type); int ofproto_type_run_fast(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); void ofproto_destroy(struct ofproto *); int ofproto_delete(const char *name, const char *type); int ofproto_run(struct ofproto *); int ofproto_run_fast(struct ofproto *); void ofproto_wait(struct ofproto *); bool ofproto_is_alive(const struct ofproto *); void ofproto_get_memory_usage(const struct ofproto *, 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". */ uint16_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_EVICTION_THRESHOLD_DEFAULT 1000 #define OFPROTO_FLOW_EVICTION_THRESHOLD_MIN 100 const char *ofproto_port_open_type(const char *datapath_type, const char *port_type); int ofproto_port_add(struct ofproto *, struct netdev *, uint16_t *ofp_portp); int ofproto_port_del(struct ofproto *, uint16_t ofp_port); int ofproto_port_get_stats(const struct ofport *, struct netdev_stats *stats); 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 *, const struct ofproto_controller *, size_t n, uint32_t allowed_versions); 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_flow_eviction_threshold(struct ofproto *, unsigned threshold); 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); void ofproto_set_dp_desc(struct ofproto *, const char *dp_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_stp(struct ofproto *, const struct ofproto_stp_settings *); int ofproto_get_stp_status(struct ofproto *, struct ofproto_stp_status *); /* Configuration of ports. */ void ofproto_port_unregister(struct ofproto *, uint16_t ofp_port); void ofproto_port_clear_cfm(struct ofproto *, uint16_t ofp_port); void ofproto_port_set_cfm(struct ofproto *, uint16_t ofp_port, const struct cfm_settings *); int ofproto_port_is_lacp_current(struct ofproto *, uint16_t ofp_port); int ofproto_port_set_stp(struct ofproto *, uint16_t ofp_port, const struct ofproto_port_stp_settings *); int ofproto_port_get_stp_status(struct ofproto *, uint16_t ofp_port, struct ofproto_port_stp_status *); int ofproto_port_set_queues(struct ofproto *, uint16_t ofp_port, const struct ofproto_port_queue *, size_t n_queues); /* 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 }; /* Configuration of bundles. */ struct ofproto_bundle_settings { char *name; /* For use in log messages. */ uint16_t *slaves; /* OpenFlow port numbers for slaves. */ size_t n_slaves; enum port_vlan_mode vlan_mode; /* Selects mode for vlan and trunks */ int vlan; /* VLAN VID, except for PORT_VLAN_TRUNK. */ unsigned long *trunks; /* vlan_bitmap, except for PORT_VLAN_ACCESS. */ bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */ struct bond_settings *bond; /* Must be nonnull iff if n_slaves > 1. */ uint32_t *bond_stable_ids; /* Array of n_slaves elements. */ struct lacp_settings *lacp; /* Nonnull to enable LACP. */ struct lacp_slave_settings *lacp_slaves; /* Array of n_slaves elements. */ /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) * * This is deprecated. It is only for compatibility with broken device * drivers in old versions of Linux that do not properly support VLANs when * VLAN devices are not used. When broken device drivers are no longer in * widespread use, we will delete these interfaces. */ uint16_t realdev_ofp_port; /* OpenFlow port number of real device. */ }; 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. */ }; 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); 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 determine the handling of an attempt to add a flow that * would cause the table to have more than 'max_flows' flows. * * If 'groups' is NULL, overflows will be rejected with an error. * * If 'groups' is nonnull, 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 subfields within 'groups'. */ struct mf_subfield *groups; size_t n_groups; }; int ofproto_get_n_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 *); void ofproto_get_netflow_ids(const struct ofproto *, uint8_t *engine_type, uint8_t *engine_id); int ofproto_port_get_cfm_fault(const struct ofproto *, uint16_t ofp_port); int ofproto_port_get_cfm_opup(const struct ofproto *, uint16_t ofp_port); int ofproto_port_get_cfm_remote_mpids(const struct ofproto *, uint16_t ofp_port, const uint64_t **rmps, size_t *n_rmps); int ofproto_port_get_cfm_health(const struct ofproto *ofproto, uint16_t ofp_port); void ofproto_get_ofproto_controller_info(const struct ofproto *, struct shash *); void ofproto_free_ofproto_controller_info(struct shash *); /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) * * This is deprecated. It is only for compatibility with broken device drivers * in old versions of Linux that do not properly support VLANs when VLAN * devices are not used. When broken device drivers are no longer in * widespread use, we will delete these interfaces. */ void ofproto_get_vlan_usage(struct ofproto *, unsigned long int *vlan_bitmap); bool ofproto_has_vlan_usage_changed(const struct ofproto *); int ofproto_port_set_realdev(struct ofproto *, uint16_t vlandev_ofp_port, uint16_t realdev_ofp_port, int vid); #ifdef __cplusplus } #endif #endif /* ofproto.h */