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