/* * Copyright (c) 2009, 2010, 2011 Nicira Networks. * * 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 "flow.h" #include "netflow.h" #include "tag.h" #ifdef __cplusplus extern "C" { #endif struct xflow_actions; struct ofhooks; struct ofproto; struct svec; struct ofexpired { flow_t 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 svec targets; uint32_t sampling_rate; uint32_t polling_interval; uint32_t header_len; uint32_t sub_id; char *agent_device; char *control_ip; }; /* 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? */ /* Discovery options. */ char *accept_re; /* Regexp for acceptable controllers. */ bool update_resolv_conf; /* Update /etc/resolv.conf? */ /* OpenFlow packet-in rate-limiting. */ int rate_limit; /* Max packet-in rate in packets per second. */ int burst_limit; /* Limit on accumulating packet credits. */ }; #define DEFAULT_MFR_DESC "Nicira Networks, Inc." #define DEFAULT_HW_DESC "Open vSwitch" #define DEFAULT_SW_DESC VERSION BUILDNR #define DEFAULT_SERIAL_DESC "None" #define DEFAULT_DP_DESC "None" int ofproto_create(const char *datapath, const char *datapath_type, const struct ofhooks *, void *aux, struct ofproto **ofprotop); void ofproto_destroy(struct ofproto *); int ofproto_run(struct ofproto *); int ofproto_run1(struct ofproto *); int ofproto_run2(struct ofproto *, bool revalidate_all); void ofproto_wait(struct ofproto *); bool ofproto_is_alive(const struct ofproto *); struct wdp *ofproto_get_wdp(struct ofproto *); /* Configuration. */ void ofproto_set_datapath_id(struct ofproto *, uint64_t datapath_id); void ofproto_set_controllers(struct ofproto *, const struct ofproto_controller *, size_t n); 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_desc(struct ofproto *, const char *mfr_desc, const char *hw_desc, const char *sw_desc, const char *serial_desc, const char *dp_desc); int ofproto_set_snoops(struct ofproto *, const struct svec *snoops); int ofproto_set_netflow(struct ofproto *, const struct netflow_options *nf_options); void ofproto_set_sflow(struct ofproto *, const struct ofproto_sflow_options *); /* Configuration querying. */ uint64_t ofproto_get_datapath_id(const struct ofproto *); bool ofproto_has_primary_controller(const struct ofproto *); enum ofproto_fail_mode ofproto_get_fail_mode(const struct ofproto *); void ofproto_get_listeners(const struct ofproto *, struct svec *); void ofproto_get_snoops(const struct ofproto *, struct svec *); void ofproto_get_all_flows(struct ofproto *p, struct ds *); /* Functions for use by ofproto implementation modules, not by clients. */ int ofproto_send_packet(struct ofproto *, const flow_t *, const union ofp_action *, size_t n_actions, const struct ofpbuf *); void ofproto_add_flow(struct ofproto *, const flow_t *, const union ofp_action *, size_t n_actions, int idle_timeout); void ofproto_delete_flow(struct ofproto *, const flow_t *); void ofproto_flush_flows(struct ofproto *); /* Hooks for ovs-vswitchd. * * This needs to be redesigned; it only makes sense for wdp-xflow. */ struct ofhooks { void (*port_changed_cb)(enum ofp_port_reason, const struct ofp_phy_port *, void *aux); bool (*normal_cb)(const flow_t *, const struct ofpbuf *packet, struct xflow_actions *, tag_type *, uint16_t *nf_output_iface, void *aux); void (*account_flow_cb)(const flow_t *, tag_type tags, const union xflow_action *, size_t n_actions, unsigned long long int n_bytes, void *aux); void (*account_checkpoint_cb)(void *aux); }; void ofproto_revalidate(struct ofproto *, tag_type); void ofproto_revalidate_all(struct ofproto *); #ifdef __cplusplus } #endif #endif /* ofproto.h */