extras/vom/vom/gbp_bridge_domain.cpp

   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 #include "vom/gbp_bridge_domain.hpp"
  17 #include "vom/gbp_bridge_domain_cmds.hpp"
  18 #include "vom/interface.hpp"
  19 #include "vom/l2_binding.hpp"
  20 #include "vom/singular_db_funcs.hpp"
  21
  22 namespace VOM {
  23
  24 /**
  25  * A DB of al the interfaces, key on the name
  26  */
  27 singular_db<uint32_t, gbp_bridge_domain> gbp_bridge_domain::m_db;
  28
  29 gbp_bridge_domain::event_handler gbp_bridge_domain::m_evh;
  30
  31 /**
  32  * Construct a new object matching the desried state
  33  */
  34 gbp_bridge_domain::gbp_bridge_domain(const bridge_domain& bd)
  35   : m_id(bd.id())
  36   , m_bd(bd.singular())
  37 {
  38 }
  39
  40 gbp_bridge_domain::gbp_bridge_domain(const bridge_domain& bd,
  41                                      const interface& bvi,
  42                                      const interface& uu_fwd)
  43   : m_id(bd.id())
  44   , m_bd(bd.singular())
  45   , m_bvi(bvi.singular())
  46   , m_uu_fwd(uu_fwd.singular())
  47 {
  48 }
  49
  50 gbp_bridge_domain::gbp_bridge_domain(const gbp_bridge_domain& bd)
  51   : m_id(bd.id())
  52   , m_bd(bd.m_bd)
  53 {
  54 }
  55
  56 const gbp_bridge_domain::key_t
  57 gbp_bridge_domain::key() const
  58 {
  59   return (m_bd->key());
  60 }
  61
  62 uint32_t
  63 gbp_bridge_domain::id() const
  64 {
  65   return (m_bd->id());
  66 }
  67
  68 bool
  69 gbp_bridge_domain::operator==(const gbp_bridge_domain& b) const
  70 {
  71   bool equal = true;
  72
  73   if (m_bvi && b.m_bvi)
  74     equal &= (m_bvi->key() == b.m_bvi->key());
  75   else if (!m_bvi && !b.m_bvi)
  76     ;
  77   else
  78     equal = false;
  79
  80   if (m_uu_fwd && b.m_uu_fwd)
  81     equal &= (m_uu_fwd->key() == b.m_uu_fwd->key());
  82   else if (!m_uu_fwd && !b.m_uu_fwd)
  83     ;
  84   else
  85     equal = false;
  86
  87   return ((m_bd->key() == b.m_bd->key()) && equal);
  88 }
  89
  90 void
  91 gbp_bridge_domain::sweep()
  92 {
  93   if (rc_t::OK == m_id.rc()) {
  94     HW::enqueue(new gbp_bridge_domain_cmds::delete_cmd(m_id));
  95   }
  96   HW::write();
  97 }
  98
  99 void
 100 gbp_bridge_domain::replay()
 101 {
 102   if (rc_t::OK == m_id.rc()) {
 103     if (m_bvi && m_uu_fwd)
 104       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(m_id, m_bvi->handle(),
 105                                                          m_uu_fwd->handle()));
 106     else
 107       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(
 108         m_id, handle_t::INVALID, handle_t::INVALID));
 109   }
 110 }
 111
 112 gbp_bridge_domain::~gbp_bridge_domain()
 113 {
 114   sweep();
 115
 116   // not in the DB anymore.
 117   m_db.release(m_id.data(), this);
 118 }
 119
 120 std::string
 121 gbp_bridge_domain::to_string() const
 122 {
 123   std::ostringstream s;
 124   s << "gbp-bridge-domain:[" << m_bd->to_string() << "]";
 125
 126   return (s.str());
 127 }
 128
 129 std::shared_ptr<gbp_bridge_domain>
 130 gbp_bridge_domain::find(const key_t& key)
 131 {
 132   return (m_db.find(key));
 133 }
 134
 135 void
 136 gbp_bridge_domain::update(const gbp_bridge_domain& desired)
 137 {
 138   /*
 139    * the desired state is always that the interface should be created
 140    */
 141   if (rc_t::OK != m_id.rc()) {
 142     if (m_bvi && m_uu_fwd)
 143       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(m_id, m_bvi->handle(),
 144                                                          m_uu_fwd->handle()));
 145     else
 146       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(
 147         m_id, handle_t::INVALID, handle_t::INVALID));
 148   }
 149 }
 150
 151 std::shared_ptr<gbp_bridge_domain>
 152 gbp_bridge_domain::find_or_add(const gbp_bridge_domain& temp)
 153 {
 154   return (m_db.find_or_add(temp.m_id.data(), temp));
 155 }
 156
 157 std::shared_ptr<gbp_bridge_domain>
 158 gbp_bridge_domain::singular() const
 159 {
 160   return find_or_add(*this);
 161 }
 162
 163 void
 164 gbp_bridge_domain::dump(std::ostream& os)
 165 {
 166   db_dump(m_db, os);
 167 }
 168
 169 void
 170 gbp_bridge_domain::event_handler::handle_populate(const client_db::key_t& key)
 171 {
 172   /*
 173    * dump VPP Bridge domains
 174    */
 175   std::shared_ptr<gbp_bridge_domain_cmds::dump_cmd> cmd =
 176     std::make_shared<gbp_bridge_domain_cmds::dump_cmd>();
 177
 178   HW::enqueue(cmd);
 179   HW::write();
 180
 181   for (auto& record : *cmd) {
 182     auto& payload = record.get_payload();
 183
 184     std::shared_ptr<interface> uu_fwd =
 185       interface::find(payload.bd.uu_fwd_sw_if_index);
 186     std::shared_ptr<interface> bvi =
 187       interface::find(payload.bd.bvi_sw_if_index);
 188
 189     if (uu_fwd && bvi) {
 190       gbp_bridge_domain bd(payload.bd.bd_id, *bvi, *uu_fwd);
 191       OM::commit(key, bd);
 192       VOM_LOG(log_level_t::DEBUG) << "dump: " << bd.to_string();
 193     } else {
 194       gbp_bridge_domain bd(payload.bd.bd_id);
 195       OM::commit(key, bd);
 196       VOM_LOG(log_level_t::DEBUG) << "dump: " << bd.to_string();
 197     }
 198   }
 199 }
 200
 201 gbp_bridge_domain::event_handler::event_handler()
 202 {
 203   OM::register_listener(this);
 204   inspect::register_handler({ "gbd", "gbridge" }, "GBP Bridge Domains", this);
 205 }
 206
 207 void
 208 gbp_bridge_domain::event_handler::handle_replay()
 209 {
 210   m_db.replay();
 211 }
 212
 213 dependency_t
 214 gbp_bridge_domain::event_handler::order() const
 215 {
 216   return (dependency_t::TABLE);
 217 }
 218
 219 void
 220 gbp_bridge_domain::event_handler::show(std::ostream& os)
 221 {
 222   db_dump(m_db, os);
 223 }
 224 }
 225
 226 /*
 227  * fd.io coding-style-patch-verification: ON
 228  *
 229  * Local Variables:
 230  * eval: (c-set-style "mozilla")
 231  * End:
 232  */