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authorNeale Ranns <nranns@cisco.com>2020-09-21 08:17:51 +0000
committerDamjan Marion <dmarion@me.com>2020-09-22 16:01:29 +0000
commit2b202bc4b2d870d76bfe6fb1906ae62e253cec72 (patch)
treeb05011f96b8d9d080647323e4609af0fac90b612 /src/plugins/lisp/lisp-cp/control.h
parentb468773aa4164bf52e0751fdf780f67248037cc0 (diff)
lisp: Move to plugin
Type: refactor Change-Id: I54df533a8f863c4e49742903cf2457f18b4fc506 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/lisp/lisp-cp/control.h')
-rw-r--r--src/plugins/lisp/lisp-cp/control.h448
1 files changed, 448 insertions, 0 deletions
diff --git a/src/plugins/lisp/lisp-cp/control.h b/src/plugins/lisp/lisp-cp/control.h
new file mode 100644
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--- /dev/null
+++ b/src/plugins/lisp/lisp-cp/control.h
@@ -0,0 +1,448 @@
+/*
+ * 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 <vnet/vnet.h>
+#include <lisp/lisp-cp/gid_dictionary.h>
+#include <lisp/lisp-cp/lisp_types.h>
+#include <vppinfra/timing_wheel.h>
+#include <vppinfra/tw_timer_1t_3w_1024sl_ov.h>
+
+#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 ();
+
+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:
+ */