aboutsummaryrefslogtreecommitdiffstats
path: root/src/vpp-api/vom/nat_static.cpp
blob: 3185b56e228b190a1fd4d39cd548692124b6115d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
/*
 * 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.
 */

#include "vom/nat_static.hpp"
#include "vom/nat_static_cmds.hpp"
#include "vom/singular_db_funcs.hpp"

namespace VOM {
singular_db<nat_static::key_t, nat_static> nat_static::m_db;
nat_static::event_handler nat_static::m_evh;

nat_static::nat_static(const boost::asio::ip::address& inside,
                       const boost::asio::ip::address_v4& outside)
  : m_hw(false)
  , m_rd(route_domain::get_default())
  , m_inside(inside)
  , m_outside(outside)
{
}

nat_static::nat_static(const route_domain& rd,
                       const boost::asio::ip::address& inside,
                       const boost::asio::ip::address_v4& outside)
  : m_hw(false)
  , m_rd(rd.singular())
  , m_inside(inside)
  , m_outside(outside)
{
}

nat_static::nat_static(const nat_static& ns)
  : m_hw(ns.m_hw)
  , m_rd(ns.m_rd)
  , m_inside(ns.m_inside)
  , m_outside(ns.m_outside)
{
}

nat_static::~nat_static()
{
  sweep();

  // not in the DB anymore.
  m_db.release(key(), this);
}

const nat_static::key_t
nat_static::key() const
{
  return (std::make_pair(m_rd->key(), m_outside));
}

bool
nat_static::operator==(const nat_static& n) const
{
  return ((key() == n.key()) && (m_inside == n.m_inside));
}

void
nat_static::sweep()
{
  if (m_hw) {
    if (m_inside.is_v4()) {
      HW::enqueue(new nat_static_cmds::delete_44_cmd(
        m_hw, m_rd->table_id(), m_inside.to_v4(), m_outside));
    }
  }
  HW::write();
}

void
nat_static::replay()
{
  if (m_hw) {
    if (m_inside.is_v4()) {
      HW::enqueue(new nat_static_cmds::create_44_cmd(
        m_hw, m_rd->table_id(), m_inside.to_v4(), m_outside));
    }
  }
}

void
nat_static::update(const nat_static& r)
{
  /*
 * create the table if it is not yet created
 */
  if (rc_t::OK != m_hw.rc()) {
    if (m_inside.is_v4()) {
      HW::enqueue(new nat_static_cmds::create_44_cmd(
        m_hw, m_rd->table_id(), m_inside.to_v4(), m_outside));
    }
  }
}

std::string
nat_static::to_string() const
{
  std::ostringstream s;
  s << "nat-static:["
    << "table:" << m_rd->to_string() << " inside:" << m_inside.to_string()
    << " outside:" << m_outside.to_string() << "]";

  return (s.str());
}

std::shared_ptr<nat_static>
nat_static::find_or_add(const nat_static& temp)
{
  return (m_db.find_or_add(temp.key(), temp));
}

std::shared_ptr<nat_static>
nat_static::find(const key_t& key)
{
  return (m_db.find(key));
}

std::shared_ptr<nat_static>
nat_static::singular() const
{
  return find_or_add(*this);
}

void
nat_static::dump(std::ostream& os)
{
  db_dump(m_db, os);
}

nat_static::event_handler::event_handler()
{
  OM::register_listener(this);
  inspect::register_handler({ "nat-static" }, "NAT Statics", this);
}

void
nat_static::event_handler::handle_replay()
{
  m_db.replay();
}

void
nat_static::event_handler::handle_populate(const client_db::key_t& key)
{
  /*
   * dump VPP current states
   */
  std::shared_ptr<nat_static_cmds::dump_44_cmd> cmd =
    std::make_shared<nat_static_cmds::dump_44_cmd>();

  HW::enqueue(cmd);
  HW::write();

  for (auto& record : *cmd) {

    auto& payload = record.get_payload();

    boost::asio::ip::address inside = from_bytes(0, payload.local_ip_address);
    boost::asio::ip::address outside =
      from_bytes(0, payload.external_ip_address);
    nat_static n(route_domain(payload.vrf_id), inside, outside.to_v4());

    /*
     * Write each of the discovered mappings into the OM,
     * but disable the HW Command q whilst we do, so that no
     * commands are sent to VPP
     */
    OM::commit(key, n);
  }
}

dependency_t
nat_static::event_handler::order() const
{
  return (dependency_t::ENTRY);
}

void
nat_static::event_handler::show(std::ostream& os)
{
  db_dump(m_db, os);
}
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "mozilla")
 * End:
 */