/* * Copyright (c) 2017 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 SRC_VNET_SESSION_SESSION_TABLE_H_ #define SRC_VNET_SESSION_SESSION_TABLE_H_ #include <vppinfra/bihash_16_8.h> #include <vppinfra/bihash_48_8.h> #include <vnet/session/session_rules_table.h> typedef struct _session_lookup_table { /** * Lookup tables for established sessions and listeners */ clib_bihash_16_8_t v4_session_hash; clib_bihash_48_8_t v6_session_hash; /** * Lookup tables for half-open sessions */ clib_bihash_16_8_t v4_half_open_hash; clib_bihash_48_8_t v6_half_open_hash; /** * Per fib proto and transport proto session rules tables */ session_rules_table_t session_rules[TRANSPORT_N_PROTO]; /** Flag that indicates if table has local scope */ u8 is_local; /** Namespace this table belongs to */ u32 appns_index; /** For global tables only one fib proto is active. This is a * byproduct of fib table ids not necessarily being the same for * identical fib idices of v4 and v6 fib protos */ u8 active_fib_proto; } session_table_t; #define SESSION_TABLE_INVALID_INDEX ((u32)~0) #define SESSION_LOCAL_TABLE_PREFIX ((u32)~0) #define SESSION_INVALID_INDEX ((u32)~0) #define SESSION_INVALID_HANDLE ((u64)~0) #define SESSION_DROP_HANDLE (((u64)~0) - 1) typedef int (*ip4_session_table_walk_fn_t) (clib_bihash_kv_16_8_t * kvp, void *ctx); void ip4_session_table_walk_cb (clib_bihash_kv_16_8_t * kvp, void *arg); void ip4_session_table_walk (clib_bihash_16_8_t * hash, ip4_session_table_walk_fn_t fn, void *arg); session_table_t *session_table_alloc (void); session_table_t *session_table_get (u32 table_index); u32 session_table_index (session_table_t * slt); void session_table_init (session_table_t * slt, u8 fib_proto); /* Internal, try not to use it! */ session_table_t *_get_session_tables (); #define session_table_foreach(VAR, BODY) \ pool_foreach(VAR, _get_session_tables (), BODY) #endif /* SRC_VNET_SESSION_SESSION_TABLE_H_ */ /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */