src/vnet/session/session_lookup.h

   1 /*
   2  * Copyright (c) 2017 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef SRC_VNET_SESSION_SESSION_LOOKUP_H_
  17 #define SRC_VNET_SESSION_SESSION_LOOKUP_H_
  18
  19 #include <vnet/session/stream_session.h>
  20 #include <vnet/session/transport.h>
  21
  22 typedef struct _session_lookup
  23 {
  24   /** Lookup tables for established sessions and listeners */
  25   clib_bihash_16_8_t v4_session_hash;
  26   clib_bihash_48_8_t v6_session_hash;
  27
  28   /** Lookup tables for half-open sessions */
  29   clib_bihash_16_8_t v4_half_open_hash;
  30   clib_bihash_48_8_t v6_half_open_hash;
  31 } session_lookup_t;
  32
  33 stream_session_t *stream_session_lookup_listener4 (ip4_address_t * lcl,
  34                                                    u16 lcl_port, u8 proto);
  35 stream_session_t *stream_session_lookup4 (ip4_address_t * lcl,
  36                                           ip4_address_t * rmt, u16 lcl_port,
  37                                           u16 rmt_port, u8 proto);
  38 stream_session_t *stream_session_lookup_listener6 (ip6_address_t * lcl,
  39                                                    u16 lcl_port, u8 proto);
  40 stream_session_t *stream_session_lookup6 (ip6_address_t * lcl,
  41                                           ip6_address_t * rmt, u16 lcl_port,
  42                                           u16 rmt_port, u8 proto);
  43 transport_connection_t *stream_session_lookup_transport_wt4 (ip4_address_t *
  44                                                              lcl,
  45                                                              ip4_address_t *
  46                                                              rmt,
  47                                                              u16 lcl_port,
  48                                                              u16 rmt_port,
  49                                                              u8 proto,
  50                                                              u32
  51                                                              thread_index);
  52 transport_connection_t *stream_session_lookup_transport4 (ip4_address_t * lcl,
  53                                                           ip4_address_t * rmt,
  54                                                           u16 lcl_port,
  55                                                           u16 rmt_port,
  56                                                           u8 proto);
  57 transport_connection_t *stream_session_lookup_transport_wt6 (ip6_address_t *
  58                                                              lcl,
  59                                                              ip6_address_t *
  60                                                              rmt,
  61                                                              u16 lcl_port,
  62                                                              u16 rmt_port,
  63                                                              u8 proto,
  64                                                              u32
  65                                                              thread_index);
  66 transport_connection_t *stream_session_lookup_transport6 (ip6_address_t * lcl,
  67                                                           ip6_address_t * rmt,
  68                                                           u16 lcl_port,
  69                                                           u16 rmt_port,
  70                                                           u8 proto);
  71
  72 stream_session_t *stream_session_lookup_listener (ip46_address_t * lcl,
  73                                                   u16 lcl_port, u8 proto);
  74 u64 stream_session_half_open_lookup_handle (ip46_address_t * lcl,
  75                                             ip46_address_t * rmt,
  76                                             u16 lcl_port,
  77                                             u16 rmt_port, u8 proto);
  78 transport_connection_t *stream_session_half_open_lookup (ip46_address_t * lcl,
  79                                                          ip46_address_t * rmt,
  80                                                          u16 lcl_port,
  81                                                          u16 rmt_port,
  82                                                          u8 proto);
  83 void stream_session_table_add_for_tc (transport_connection_t * tc, u64 value);
  84 int stream_session_table_del_for_tc (transport_connection_t * tc);
  85 int stream_session_table_del (stream_session_t * s);
  86 void stream_session_half_open_table_del (transport_connection_t * tc);
  87 void stream_session_half_open_table_add (transport_connection_t * tc,
  88                                          u64 value);
  89
  90 void session_lookup_init (void);
  91
  92 #endif /* SRC_VNET_SESSION_SESSION_LOOKUP_H_ */
  93
  94 /*
  95  * fd.io coding-style-patch-verification: ON
  96  *
  97  * Local Variables:
  98  * eval: (c-set-style "gnu")
  99  * End:
 100  */