FD.io VPP  v18.07-rc0-415-g6c78436
Vector Packet Processing
gbp_subnet.hpp
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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 __VOM_GBP_SUBNET_H__
17 #define __VOM_GBP_SUBNET_H__
18 
20 #include "vom/gbp_recirc.hpp"
21 #include "vom/route.hpp"
22 #include "vom/singular_db.hpp"
23 
24 namespace VOM {
25 /**
26  * A GBP Enpoint (i.e. a VM)
27  */
28 class gbp_subnet : public object_base
29 {
30 public:
31  /**
32  * The key for a GBP subnet; table and prefix
33  */
34  typedef std::pair<route_domain::key_t, route::prefix_t> key_t;
35 
36  /**
37  * Construct an internal GBP subnet
38  */
39  gbp_subnet(const route_domain& rd, const route::prefix_t& prefix);
40 
41  /**
42  * Construct an external GBP subnet
43  */
44  gbp_subnet(const route_domain& rd,
45  const route::prefix_t& prefix,
46  const gbp_recirc& recirc,
47  const gbp_endpoint_group& epg);
48 
49  /**
50  * Copy Construct
51  */
52  gbp_subnet(const gbp_subnet& r);
53 
54  /**
55  * Destructor
56  */
57  ~gbp_subnet();
58 
59  /**
60  * Return the object's key
61  */
62  const key_t key() const;
63 
64  /**
65  * comparison operator
66  */
67  bool operator==(const gbp_subnet& bdae) const;
68 
69  /**
70  * Return the matching 'singular instance'
71  */
72  std::shared_ptr<gbp_subnet> singular() const;
73 
74  /**
75  * Find the instnace of the bridge_domain domain in the OM
76  */
77  static std::shared_ptr<gbp_subnet> find(const key_t& k);
78 
79  /**
80  * Dump all bridge_domain-doamin into the stream provided
81  */
82  static void dump(std::ostream& os);
83 
84  /**
85  * replay the object to create it in hardware
86  */
87  void replay(void);
88 
89  /**
90  * Convert to string for debugging
91  */
92  std::string to_string() const;
93 
94 private:
95  struct type_t : public enum_base<type_t>
96  {
97  /**
98  * Internal subnet is reachable through the source EPG's
99  * uplink interface.
100  */
101  const static type_t INTERNAL;
102 
103  /**
104  * External subnet requires NAT translation before egress.
105  */
106  const static type_t EXTERNAL;
107 
108  private:
109  type_t(int v, const std::string s);
110  };
111 
112  /**
113  * Class definition for listeners to OM events
114  */
116  {
117  public:
118  event_handler();
119  virtual ~event_handler() = default;
120 
121  /**
122  * Handle a populate event
123  */
124  void handle_populate(const client_db::key_t& key);
125 
126  /**
127  * Handle a replay event
128  */
129  void handle_replay();
130 
131  /**
132  * Show the object in the Singular DB
133  */
134  void show(std::ostream& os);
135 
136  /**
137  * Get the sortable Id of the listener
138  */
139  dependency_t order() const;
140  };
141 
142  /**
143  * event_handler to register with OM
144  */
145  static event_handler m_evh;
146 
147  /**
148  * Commit the acculmulated changes into VPP. i.e. to a 'HW" write.
149  */
150  void update(const gbp_subnet& obj);
151 
152  /**
153  * Find or add the instnace of the bridge_domain domain in the OM
154  */
155  static std::shared_ptr<gbp_subnet> find_or_add(const gbp_subnet& temp);
156 
157  /*
158  * It's the VPPHW class that updates the objects in HW
159  */
160  friend class OM;
161 
162  /**
163  * It's the singular_db class that calls replay()
164  */
165  friend class singular_db<key_t, gbp_subnet>;
166 
167  /**
168  * Sweep/reap the object if still stale
169  */
170  void sweep(void);
171 
172  /**
173  * HW configuration for the result of creating the subnet
174  */
175  HW::item<bool> m_hw;
176 
177  /**
178  * the route domain the prefix is in
179  */
180  const std::shared_ptr<route_domain> m_rd;
181 
182  /**
183  * prefix to match
184  */
185  const route::prefix_t m_prefix;
186 
187  /*
188  * Subnet type
189  */
190  type_t m_type;
191 
192  /**
193  * The interface the prefix is reachable through
194  */
195  std::shared_ptr<gbp_recirc> m_recirc;
196 
197  /**
198  * The EPG the subnet is in
199  */
200  std::shared_ptr<gbp_endpoint_group> m_epg;
201 
202  /**
203  * A map of all bridge_domains
204  */
205  static singular_db<key_t, gbp_subnet> m_db;
206 };
207 
208 }; // namespace
209 
210 /*
211  * fd.io coding-style-patch-verification: ON
212  *
213  * Local Variables:
214  * eval: (c-set-style "mozilla")
215  * End:
216  */
217 
218 #endif
A template base class for all enum types.
Definition: enum_base.hpp:30
const std::string key_t
In the opflex world each entity is known by a URI which can be converted into a string.
Definition: client_db.hpp:51
std::shared_ptr< gbp_subnet > singular() const
Return the matching &#39;singular instance&#39;.
Definition: gbp_subnet.cpp:158
A route-domain is a VRF.
std::string to_string() const
Convert to string for debugging.
Definition: gbp_subnet.cpp:108
void replay(void)
replay the object to create it in hardware
Definition: gbp_subnet.cpp:97
~gbp_subnet()
Destructor.
Definition: gbp_subnet.cpp:67
#define v
Definition: acl.c:491
static void dump(std::ostream &os)
Dump all bridge_domain-doamin into the stream provided.
Definition: gbp_subnet.cpp:164
static std::shared_ptr< gbp_subnet > find(const key_t &k)
Find the instnace of the bridge_domain domain in the OM.
Definition: gbp_subnet.cpp:152
A Database to store the unique &#39;singular&#39; instances of a single object type.
Definition: singular_db.hpp:33
A recirculation interface for GBP use pre/post NAT.
Definition: gbp_recirc.hpp:27
A GBP Enpoint (i.e.
Definition: gbp_subnet.hpp:28
bool operator==(const gbp_subnet &bdae) const
comparison operator
Definition: gbp_subnet.cpp:80
gbp_subnet(const route_domain &rd, const route::prefix_t &prefix)
Construct an internal GBP subnet.
Definition: gbp_subnet.cpp:34
const key_t key() const
Return the object&#39;s key.
Definition: gbp_subnet.cpp:74
A entry in the ARP termination table of a Bridge Domain.
Class definition for listeners to OM events.
Definition: om.hpp:284
inspect command handler Handler
Definition: inspect.hpp:54
void event_handler(void *tls_async)
Definition: tls_async.c:311
dependency_t
There needs to be a strict order in which object types are read from VPP (at boot time) and replayed ...
Definition: types.hpp:43
The interface to writing objects into VPP OM.
Definition: om.hpp:140
A base class for all object_base in the VPP object_base-Model.
Definition: object_base.hpp:29
The VPP Object Model (VOM) library.
Definition: acl_binding.cpp:19
void show(char *chroot_path, int verbose)
Definition: svmtool.c:105
std::pair< route_domain::key_t, route::prefix_t > key_t
The key for a GBP subnet; table and prefix.
Definition: gbp_subnet.hpp:34
A prefix defintion.
Definition: prefix.hpp:93