/* * Copyright (c) 2016 Cisco and/or its affiliates. * 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 VNET_CONTROL_H_ #define VNET_CONTROL_H_ #include #include #include #include #include #define NUMBER_OF_RETRIES 1 #define PENDING_MREQ_EXPIRATION_TIME 3.0 /* seconds */ #define PENDING_MREQ_QUEUE_LEN 5 #define RLOC_PROBING_INTERVAL 60.0 /* when map-registration is enabled "quick registration" takes place first. In this mode ETR sends map-register messages at an increased frequency until specified message count is reached */ #define QUICK_MAP_REGISTER_MSG_COUNT 5 #define QUICK_MAP_REGISTER_INTERVAL 3.0 /* normal map-register period */ #define MAP_REGISTER_INTERVAL 60.0 /* how many tries until next map-server election */ #define MAX_EXPIRED_MAP_REGISTERS_DEFAULT 3 #define PENDING_MREG_EXPIRATION_TIME 3.0 /* seconds */ /* 24 hours */ #define MAP_REGISTER_DEFAULT_TTL 86400 typedef struct { gid_address_t src; gid_address_t dst; u32 retries_num; f64 time_to_expire; u8 is_smr_invoked; u64 *nonces; u8 to_be_removed; } pending_map_request_t; typedef struct { f64 time_to_expire; } pending_map_register_t; typedef struct { gid_address_t leid; gid_address_t reid; u8 is_src_dst; locator_pair_t *locator_pairs; } fwd_entry_t; typedef struct { gid_address_t leid; gid_address_t reid; } lisp_adjacency_t; typedef enum { IP4_MISS_PACKET, IP6_MISS_PACKET } miss_packet_type_t; /* map-server/map-resolver structure */ typedef struct { u8 is_down; f64 last_update; ip_address_t address; char *key; } lisp_msmr_t; typedef struct { /* headers */ u8 data[100]; u32 length; miss_packet_type_t type; } miss_packet_t; typedef struct { u8 mac[6]; u32 ip4; } lisp_api_l2_arp_entry_t; typedef struct { u8 mac[6]; u8 ip6[16]; } lisp_api_ndp_entry_t; typedef enum { MR_MODE_DST_ONLY = 0, MR_MODE_SRC_DST, _MR_MODE_MAX } map_request_mode_t; #define foreach_lisp_flag_bit \ _(USE_PETR, "Use Proxy-ETR") \ _(XTR_MODE, "ITR/ETR mode") \ _(PETR_MODE, "Proxy-ETR mode") \ _(PITR_MODE, "Proxy-ITR mode") \ _(STATS_ENABLED, "Statistics enabled") typedef enum lisp_flag_bits { #define _(sym, str) LISP_FLAG_BIT_##sym, foreach_lisp_flag_bit #undef _ } lisp_flag_bits_e; typedef enum lisp_flags { #define _(sym, str) LISP_FLAG_##sym = 1 << LISP_FLAG_BIT_##sym, foreach_lisp_flag_bit #undef _ } lisp_flags_e; typedef struct { ip_address_t addr; u32 bd; } lisp_l2_arp_key_t; typedef enum { LISP_TRANSPORT_PROTOCOL_UDP = 1, LISP_TRANSPORT_PROTOCOL_API } lisp_transport_protocol_t; typedef struct { u64 nonce; u8 is_rloc_probe; mapping_t *mappings; volatile u8 is_free; } map_records_arg_t; typedef struct { u32 flags; /* LISP feature status */ u8 is_enabled; /* eid table */ gid_dictionary_t mapping_index_by_gid; /* pool of mappings */ mapping_t *mapping_pool; /* hash map of secret keys by mapping index */ u8 *key_by_mapping_index; /* pool of locators */ locator_t *locator_pool; /* pool of locator-sets */ locator_set_t *locator_set_pool; /* vector of locator-set vectors composed of and indexed by locator index */ u32 **locator_to_locator_sets; /* hash map of locators by name */ uword *locator_set_index_by_name; /* vector of eid index vectors supported and indexed by locator-set index */ u32 **locator_set_to_eids; /* vectors of indexes for local locator-sets and mappings */ u32 *local_mappings_indexes; u32 *local_locator_set_indexes; /* hash map of forwarding entries by mapping index */ u32 *fwd_entry_by_mapping_index; /* pool of vectors of rmts per lcl mapping in adjacencies */ u32 **lcl_to_rmt_adjacencies; /* hash of pool positions of vectors of rmts by lcl mapping index */ u32 *lcl_to_rmt_adjs_by_lcl_idx; /* forwarding entries pool */ fwd_entry_t *fwd_entry_pool; /* hash map keyed by nonce of pending map-requests */ uword *pending_map_requests_by_nonce; /* pool of pending map requests */ pending_map_request_t *pending_map_requests_pool; /* pool of pending map registers */ pending_map_register_t *pending_map_registers_pool; /* hash map of sent map register messages */ uword *map_register_messages_by_nonce; /* vector of map-resolvers */ lisp_msmr_t *map_resolvers; /* vector of map-servers */ lisp_msmr_t *map_servers; /* map resolver address currently being used for sending requests. * This has to be an actual address and not an index to map_resolvers vector * since the vector may be modified during request resend/retry procedure * and break things :-) */ ip_address_t active_map_resolver; ip_address_t active_map_server; u8 do_map_resolver_election; u8 do_map_server_election; /* map-request locator set index */ u32 mreq_itr_rlocs; /* vni to vrf hash tables */ uword *table_id_by_vni; uword *vni_by_table_id; /* vni to bd-index hash tables */ uword *bd_id_by_vni; uword *vni_by_bd_id; /* track l2 and l3 interfaces that have been created for vni */ uword *l2_dp_intf_by_vni; /* Proxy ITR map index */ u32 pitr_map_index; /** Proxy ETR map index used for 'use-petr'. * Not related to PETR tunnel mode */ u32 petr_map_index; /* mapping index for NSH */ u32 nsh_map_index; /* map request mode */ u8 map_request_mode; /* enable/disable map registering */ u8 map_registering; /* enable/disable rloc-probing */ u8 rloc_probing; /* timing wheel for mapping timeouts */ TWT (tw_timer_wheel) wheel; /** Per thread pool of records shared with thread0 */ map_records_arg_t **map_records_args_pool; /* TTL used for all mappings when registering */ u32 map_register_ttl; /* control variables for map server election */ u32 max_expired_map_registers; u32 expired_map_registers; /** either UDP based or binary API. Default is UDP */ lisp_transport_protocol_t transport_protocol; /** Retry service node index */ u32 retry_service_index; /* commodity */ ip4_main_t *im4; ip6_main_t *im6; vlib_main_t *vlib_main; vnet_main_t *vnet_main; } lisp_cp_main_t; /* lisp-gpe control plane */ extern lisp_cp_main_t lisp_control_main; extern vlib_node_registration_t lisp_cp_input_node; extern vlib_node_registration_t lisp_cp_lookup_ip4_node; extern vlib_node_registration_t lisp_cp_lookup_ip6_node; clib_error_t *lisp_cp_init (vlib_main_t *); always_inline lisp_cp_main_t * vnet_lisp_cp_get_main () { return &lisp_control_main; } void get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b, gid_address_t * src, gid_address_t * dst, u16 type); typedef struct { u8 is_add; union { u8 *name; u32 index; }; locator_t *locators; u8 local; } vnet_lisp_add_del_locator_set_args_t; int vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a, u32 * ls_index); int vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a, locator_set_t * ls, u32 * ls_index); typedef struct { u8 is_add; gid_address_t eid; u32 locator_set_index; u32 ttl; u8 action; u8 authoritative; u8 local; u8 is_static; u8 *key; u8 key_id; } vnet_lisp_add_del_mapping_args_t; int vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a, u32 * map_index); int vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a, u32 * map_index_result); int vnet_lisp_add_mapping (vnet_lisp_add_del_mapping_args_t * a, locator_t * rlocs, u32 * res_map_index, u8 * is_changed); int vnet_lisp_del_mapping (gid_address_t * eid, u32 * res_map_index); typedef struct { gid_address_t reid; gid_address_t leid; u8 is_add; } vnet_lisp_add_del_adjacency_args_t; int vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a); typedef struct { u8 is_add; ip_address_t address; } vnet_lisp_add_del_map_resolver_args_t; int vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a); int vnet_lisp_add_del_map_server (ip_address_t * addr, u8 is_add); clib_error_t *vnet_lisp_enable_disable (u8 is_enabled); u8 vnet_lisp_enable_disable_status (void); void vnet_lisp_create_retry_process (lisp_cp_main_t * lcm); int vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add); int vnet_lisp_use_petr (ip_address_t * ip, u8 is_add); typedef struct { u8 is_add; u8 *locator_set_name; } vnet_lisp_add_del_mreq_itr_rloc_args_t; int vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a); int vnet_lisp_clear_all_remote_adjacencies (void); int vnet_lisp_eid_table_map (u32 vni, u32 vrf, u8 is_l2, u8 is_add); int vnet_lisp_add_del_map_table_key (gid_address_t * eid, char *key, u8 is_add); int vnet_lisp_set_map_request_mode (u8 mode); u8 vnet_lisp_get_map_request_mode (void); lisp_adjacency_t *vnet_lisp_adjacencies_get_by_vni (u32 vni); int vnet_lisp_rloc_probe_enable_disable (u8 is_enable); int vnet_lisp_map_register_enable_disable (u8 is_enable); u8 vnet_lisp_map_register_state_get (void); u8 vnet_lisp_rloc_probe_state_get (void); int vnet_lisp_add_del_l2_arp_ndp_entry (gid_address_t * key, u8 * mac, u8 is_add); u32 *vnet_lisp_l2_arp_bds_get (void); lisp_api_l2_arp_entry_t *vnet_lisp_l2_arp_entries_get_by_bd (u32 bd); int vnet_lisp_nsh_set_locator_set (u8 * locator_set_name, u8 is_add); int vnet_lisp_map_register_set_ttl (u32 ttl); u32 vnet_lisp_map_register_get_ttl (void); int vnet_lisp_map_register_fallback_threshold_set (u32 value); u32 vnet_lisp_map_register_fallback_threshold_get (void); u32 *vnet_lisp_ndp_bds_get (void); lisp_api_ndp_entry_t *vnet_lisp_ndp_entries_get_by_bd (u32 bd); u32 vnet_lisp_set_transport_protocol (u8 protocol); lisp_transport_protocol_t vnet_lisp_get_transport_protocol (void); extern int vnet_lisp_enable_disable_xtr_mode (u8 is_enabled); extern int vnet_lisp_enable_disable_pitr_mode (u8 is_enabled); extern int vnet_lisp_enable_disable_petr_mode (u8 is_enabled); extern u8 vnet_lisp_get_xtr_mode (void); extern u8 vnet_lisp_get_pitr_mode (void); extern u8 vnet_lisp_get_petr_mode (void); map_records_arg_t *parse_map_reply (vlib_buffer_t * b); always_inline mapping_t * lisp_get_petr_mapping (lisp_cp_main_t * lcm) { return pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index); } #endif /* VNET_CONTROL_H_ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */