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                                      const interface& bvi)
  36   : m_id(bd.id())
  37   , m_bd(bd.singular())
  38   , m_bvi(bvi.singular())
  39 {
  40 }
  41
  42 gbp_bridge_domain::gbp_bridge_domain(const bridge_domain& bd,
  43                                      const interface& bvi,
  44                                      const interface& uu_fwd)
  45   : m_id(bd.id())
  46   , m_bd(bd.singular())
  47   , m_bvi(bvi.singular())
  48   , m_uu_fwd(uu_fwd.singular())
  49 {
  50 }
  51
  52 gbp_bridge_domain::gbp_bridge_domain(const bridge_domain& bd,
  53                                      const std::shared_ptr<interface> bvi,
  54                                      const std::shared_ptr<interface> uu_fwd)
  55   : m_id(bd.id())
  56   , m_bd(bd.singular())
  57   , m_bvi(bvi->singular())
  58   , m_uu_fwd(uu_fwd->singular())
  59 {
  60 }
  61
  62 gbp_bridge_domain::gbp_bridge_domain(const bridge_domain& bd,
  63                                      const interface& bvi,
  64                                      const std::shared_ptr<interface> uu_fwd)
  65   : m_id(bd.id())
  66   , m_bd(bd.singular())
  67   , m_bvi(bvi.singular())
  68   , m_uu_fwd(uu_fwd->singular())
  69 {
  70 }
  71
  72 gbp_bridge_domain::gbp_bridge_domain(const gbp_bridge_domain& bd)
  73   : m_id(bd.id())
  74   , m_bd(bd.m_bd)
  75   , m_bvi(bd.m_bvi)
  76   , m_uu_fwd(bd.m_uu_fwd)
  77 {
  78 }
  79
  80 const gbp_bridge_domain::key_t
  81 gbp_bridge_domain::key() const
  82 {
  83   return (m_bd->key());
  84 }
  85
  86 uint32_t
  87 gbp_bridge_domain::id() const
  88 {
  89   return (m_bd->id());
  90 }
  91
  92 const std::shared_ptr<bridge_domain>
  93 gbp_bridge_domain::get_bridge_domain()
  94 {
  95   return m_bd;
  96 }
  97
  98 const std::shared_ptr<interface>
  99 gbp_bridge_domain::get_bvi()
 100 {
 101   return m_bvi;
 102 }
 103
 104 bool
 105 gbp_bridge_domain::operator==(const gbp_bridge_domain& b) const
 106 {
 107   bool equal = true;
 108
 109   if (m_bvi && b.m_bvi)
 110     equal &= (m_bvi->key() == b.m_bvi->key());
 111   else if (!m_bvi && !b.m_bvi)
 112     ;
 113   else
 114     equal = false;
 115
 116   if (m_uu_fwd && b.m_uu_fwd)
 117     equal &= (m_uu_fwd->key() == b.m_uu_fwd->key());
 118   else if (!m_uu_fwd && !b.m_uu_fwd)
 119     ;
 120   else
 121     equal = false;
 122
 123   return ((m_bd->key() == b.m_bd->key()) && equal);
 124 }
 125
 126 void
 127 gbp_bridge_domain::sweep()
 128 {
 129   if (rc_t::OK == m_id.rc()) {
 130     HW::enqueue(new gbp_bridge_domain_cmds::delete_cmd(m_id));
 131   }
 132   HW::write();
 133 }
 134
 135 void
 136 gbp_bridge_domain::replay()
 137 {
 138   if (rc_t::OK == m_id.rc()) {
 139     if (m_bvi && m_uu_fwd)
 140       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(m_id, m_bvi->handle(),
 141                                                          m_uu_fwd->handle()));
 142     else
 143       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(
 144         m_id, handle_t::INVALID, handle_t::INVALID));
 145   }
 146 }
 147
 148 gbp_bridge_domain::~gbp_bridge_domain()
 149 {
 150   sweep();
 151
 152   // not in the DB anymore.
 153   m_db.release(m_id.data(), this);
 154 }
 155
 156 std::string
 157 gbp_bridge_domain::to_string() const
 158 {
 159   std::ostringstream s;
 160   s << "gbp-bridge-domain:[" << m_bd->to_string();
 161
 162   if (m_bvi)
 163     s << " bvi:" << m_bvi->to_string();
 164   if (m_uu_fwd)
 165     s << " uu-fwd:" << m_uu_fwd->to_string();
 166
 167   s << "]";
 168
 169   return (s.str());
 170 }
 171
 172 std::shared_ptr<gbp_bridge_domain>
 173 gbp_bridge_domain::find(const key_t& key)
 174 {
 175   return (m_db.find(key));
 176 }
 177
 178 void
 179 gbp_bridge_domain::update(const gbp_bridge_domain& desired)
 180 {
 181   /*
 182    * the desired state is always that the interface should be created
 183    */
 184   if (rc_t::OK != m_id.rc()) {
 185     if (m_bvi && m_uu_fwd)
 186       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(m_id, m_bvi->handle(),
 187                                                          m_uu_fwd->handle()));
 188     else
 189       HW::enqueue(new gbp_bridge_domain_cmds::create_cmd(
 190         m_id, handle_t::INVALID, handle_t::INVALID));
 191   }
 192 }
 193
 194 std::shared_ptr<gbp_bridge_domain>
 195 gbp_bridge_domain::find_or_add(const gbp_bridge_domain& temp)
 196 {
 197   return (m_db.find_or_add(temp.m_id.data(), temp));
 198 }
 199
 200 std::shared_ptr<gbp_bridge_domain>
 201 gbp_bridge_domain::singular() const
 202 {
 203   return find_or_add(*this);
 204 }
 205
 206 void
 207 gbp_bridge_domain::dump(std::ostream& os)
 208 {
 209   db_dump(m_db, os);
 210 }
 211
 212 void
 213 gbp_bridge_domain::event_handler::handle_populate(const client_db::key_t& key)
 214 {
 215   /*
 216    * dump VPP Bridge domains
 217    */
 218   std::shared_ptr<gbp_bridge_domain_cmds::dump_cmd> cmd =
 219     std::make_shared<gbp_bridge_domain_cmds::dump_cmd>();
 220
 221   HW::enqueue(cmd);
 222   HW::write();
 223
 224   for (auto& record : *cmd) {
 225     auto& payload = record.get_payload();
 226
 227     std::shared_ptr<interface> uu_fwd =
 228       interface::find(payload.bd.uu_fwd_sw_if_index);
 229     std::shared_ptr<interface> bvi =
 230       interface::find(payload.bd.bvi_sw_if_index);
 231
 232     if (uu_fwd && bvi) {
 233       gbp_bridge_domain bd(payload.bd.bd_id, bvi, uu_fwd);
 234       OM::commit(key, bd);
 235       VOM_LOG(log_level_t::DEBUG) << "dump: " << bd.to_string();
 236     } else if (bvi) {
 237       gbp_bridge_domain bd(payload.bd.bd_id, *bvi);
 238       OM::commit(key, bd);
 239       VOM_LOG(log_level_t::DEBUG) << "dump: " << bd.to_string();
 240     }
 241   }
 242 }
 243
 244 gbp_bridge_domain::event_handler::event_handler()
 245 {
 246   OM::register_listener(this);
 247   inspect::register_handler({ "gbd", "gbridge" }, "GBP Bridge Domains", this);
 248 }
 249
 250 void
 251 gbp_bridge_domain::event_handler::handle_replay()
 252 {
 253   m_db.replay();
 254 }
 255
 256 dependency_t
 257 gbp_bridge_domain::event_handler::order() const
 258 {
 259   return (dependency_t::TABLE);
 260 }
 261
 262 void
 263 gbp_bridge_domain::event_handler::show(std::ostream& os)
 264 {
 265   db_dump(m_db, os);
 266 }
 267 }
 268
 269 /*
 270  * fd.io coding-style-patch-verification: ON
 271  *
 272  * Local Variables:
 273  * eval: (c-set-style "mozilla")
 274  * End:
 275  */