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/session_table.h>
  20 #include <vnet/session/stream_session.h>
  21 #include <vnet/session/transport.h>
  22 #include <vnet/session/application_namespace.h>
  23
  24 stream_session_t *session_lookup_safe4 (u32 fib_index, ip4_address_t * lcl,
  25                                         ip4_address_t * rmt, u16 lcl_port,
  26                                         u16 rmt_port, u8 proto);
  27 stream_session_t *session_lookup_safe6 (u32 fib_index, ip6_address_t * lcl,
  28                                         ip6_address_t * rmt, u16 lcl_port,
  29                                         u16 rmt_port, u8 proto);
  30 transport_connection_t *session_lookup_connection_wt4 (u32 fib_index,
  31                                                        ip4_address_t * lcl,
  32                                                        ip4_address_t * rmt,
  33                                                        u16 lcl_port,
  34                                                        u16 rmt_port, u8 proto,
  35                                                        u32 thread_index);
  36 transport_connection_t *session_lookup_connection4 (u32 fib_index,
  37                                                     ip4_address_t * lcl,
  38                                                     ip4_address_t * rmt,
  39                                                     u16 lcl_port,
  40                                                     u16 rmt_port, u8 proto);
  41 transport_connection_t *session_lookup_connection_wt6 (u32 fib_index,
  42                                                        ip6_address_t * lcl,
  43                                                        ip6_address_t * rmt,
  44                                                        u16 lcl_port,
  45                                                        u16 rmt_port, u8 proto,
  46                                                        u32 thread_index);
  47 transport_connection_t *session_lookup_connection6 (u32 fib_index,
  48                                                     ip6_address_t * lcl,
  49                                                     ip6_address_t * rmt,
  50                                                     u16 lcl_port,
  51                                                     u16 rmt_port, u8 proto);
  52 stream_session_t *session_lookup_listener4 (u32 fib_index,
  53                                             ip4_address_t * lcl, u16 lcl_port,
  54                                             u8 proto);
  55 stream_session_t *session_lookup_listener6 (u32 fib_index,
  56                                             ip6_address_t * lcl, u16 lcl_port,
  57                                             u8 proto);
  58 stream_session_t *session_lookup_listener (u32 table_index,
  59                                            session_endpoint_t * sep);
  60 int session_lookup_add_connection (transport_connection_t * tc, u64 value);
  61 int session_lookup_del_connection (transport_connection_t * tc);
  62 u64 session_lookup_session_endpoint (u32 table_index,
  63                                      session_endpoint_t * sep);
  64 u32 session_lookup_local_session_endpoint (u32 table_index,
  65                                            session_endpoint_t * sep);
  66 stream_session_t *session_lookup_global_session_endpoint (session_endpoint_t
  67                                                           *);
  68 int session_lookup_add_session_endpoint (u32 table_index,
  69                                          session_endpoint_t * sep, u64 value);
  70 int session_lookup_del_session_endpoint (u32 table_index,
  71                                          session_endpoint_t * sep);
  72 int session_lookup_del_session (stream_session_t * s);
  73 int session_lookup_del_half_open (transport_connection_t * tc);
  74 int session_lookup_add_half_open (transport_connection_t * tc, u64 value);
  75 u64 session_lookup_half_open_handle (transport_connection_t * tc);
  76 transport_connection_t *session_lookup_half_open_connection (u64 handle,
  77                                                              u8 proto,
  78                                                              u8 is_ip4);
  79 u32 session_lookup_get_index_for_fib (u32 fib_proto, u32 fib_index);
  80
  81 u64 session_lookup_local_listener_make_handle (session_endpoint_t * sep);
  82 u8 session_lookup_local_is_handle (u64 handle);
  83 int session_lookup_local_listener_parse_handle (u64 handle,
  84                                                 session_endpoint_t * sep);
  85
  86 void session_lookup_show_table_entries (vlib_main_t * vm,
  87                                         session_table_t * table, u8 type,
  88                                         u8 is_local);
  89
  90 void session_lookup_dump_rules_table (u32 fib_index, u8 fib_proto,
  91                                       u8 transport_proto);
  92 void session_lookup_dump_local_rules_table (u32 fib_index, u8 fib_proto,
  93                                             u8 transport_proto);
  94
  95 enum _session_rule_scope
  96 {
  97   SESSION_RULE_SCOPE_GLOBAL = 1,
  98   SESSION_RULE_SCOPE_LOCAL = 2,
  99 } session_rule_scope_e;
 100
 101 typedef struct _session_rule_add_del_args
 102 {
 103   /**
 104    * Actual arguments to adding the rule to a session rules table
 105    */
 106   session_rule_table_add_del_args_t table_args;
 107   /**
 108    * Application namespace where rule should be applied. If 0,
 109    * default namespace is used.
 110    */
 111   u32 appns_index;
 112   /**
 113    * Rule scope flag.
 114    */
 115   u8 scope;
 116 } session_rule_add_del_args_t;
 117
 118 clib_error_t *vnet_session_rule_add_del (session_rule_add_del_args_t * args);
 119 void session_lookup_set_tables_appns (app_namespace_t * app_ns);
 120
 121 void session_lookup_init (void);
 122
 123 #endif /* SRC_VNET_SESSION_SESSION_LOOKUP_H_ */
 124
 125 /*
 126  * fd.io coding-style-patch-verification: ON
 127  *
 128  * Local Variables:
 129  * eval: (c-set-style "gnu")
 130  * End:
 131  */