From 812ed39f9da336310e815c361ab5a9f118657d94 Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Mon, 16 Oct 2017 04:20:13 -0700 Subject: VPP Object Model (VOM) The VOM is a C++ library for use by clients/agents of VPP for programming state. It uses the binary APIs to do so. Various other common client side functions are also provided. Please see om.hpp for a more detailed description. Change-Id: Ib756bfe99817093815a9e26ccf464aa5583fc523 Signed-off-by: Neale Ranns Co-authored-by: Mohsin Kazmi --- src/vpp-api/vom/bridge_domain.cpp | 210 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 210 insertions(+) create mode 100644 src/vpp-api/vom/bridge_domain.cpp (limited to 'src/vpp-api/vom/bridge_domain.cpp') diff --git a/src/vpp-api/vom/bridge_domain.cpp b/src/vpp-api/vom/bridge_domain.cpp new file mode 100644 index 00000000000..5831b2ae224 --- /dev/null +++ b/src/vpp-api/vom/bridge_domain.cpp @@ -0,0 +1,210 @@ +/* + * 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/bridge_domain.hpp" +#include "vom/cmd.hpp" +#include "vom/interface.hpp" +#include "vom/l2_binding.hpp" +#include "vom/logger.hpp" + +namespace VOM { +/** + * A DB of al the interfaces, key on the name + */ +singular_db bridge_domain::m_db; + +bridge_domain::event_handler bridge_domain::m_evh; + +/** + * Construct a new object matching the desried state + */ +bridge_domain::bridge_domain(uint32_t id) + : m_id(id) +{ +} + +bridge_domain::bridge_domain(const bridge_domain& o) + : m_id(o.m_id) +{ +} + +uint32_t +bridge_domain::id() const +{ + return (m_id.data()); +} + +void +bridge_domain::sweep() +{ + if (rc_t::OK == m_id.rc()) { + HW::enqueue(new delete_cmd(m_id)); + } + HW::write(); +} + +void +bridge_domain::replay() +{ + if (rc_t::OK == m_id.rc()) { + HW::enqueue(new create_cmd(m_id)); + } +} + +bridge_domain::~bridge_domain() +{ + sweep(); + + // not in the DB anymore. + m_db.release(m_id.data(), this); +} + +std::string +bridge_domain::to_string() const +{ + std::ostringstream s; + s << "bridge-domain:[" << m_id.to_string() << "]"; + + return (s.str()); +} + +std::shared_ptr +bridge_domain::find(uint32_t id) +{ + /* + * Loop throught the entire map looking for matching interface. + * not the most efficient algorithm, but it will do for now. The + * number of L3 configs is low and this is only called during bootup + */ + std::shared_ptr bd; + + auto it = m_db.cbegin(); + + while (it != m_db.cend()) { + /* + * The key in the DB is a pair of the interface's name and prefix. + * If the keys match, save the L3-config + */ + auto key = it->first; + + if (id == key) { + bd = it->second.lock(); + break; + } + + ++it; + } + + return (bd); +} + +void +bridge_domain::update(const bridge_domain& desired) +{ + /* + * the desired state is always that the interface should be created + */ + if (rc_t::OK != m_id.rc()) { + HW::enqueue(new create_cmd(m_id)); + } +} + +std::shared_ptr +bridge_domain::find_or_add(const bridge_domain& temp) +{ + return (m_db.find_or_add(temp.m_id.data(), temp)); +} + +std::shared_ptr +bridge_domain::singular() const +{ + return find_or_add(*this); +} + +void +bridge_domain::dump(std::ostream& os) +{ + m_db.dump(os); +} + +void +bridge_domain::event_handler::handle_populate(const client_db::key_t& key) +{ + /* + * dump VPP Bridge domains + */ + std::shared_ptr cmd(new bridge_domain::dump_cmd()); + + HW::enqueue(cmd); + HW::write(); + + for (auto& record : *cmd) { + auto& payload = record.get_payload(); + + bridge_domain bd(payload.bd_id); + + VOM_LOG(log_level_t::DEBUG) << "dump: " << bd.to_string(); + + /* + * Write each of the discovered interfaces into the OM, + * but disable the HW Command q whilst we do, so that no + * commands are sent to VPP + */ + OM::commit(key, bd); + + /** + * For each interface in the BD construct an l2_binding + */ + for (unsigned int ii = 0; ii < payload.n_sw_ifs; ii++) { + std::shared_ptr itf = + interface::find(payload.sw_if_details[ii].sw_if_index); + l2_binding l2(*itf, bd); + OM::commit(key, l2); + } + } +} + +bridge_domain::event_handler::event_handler() +{ + OM::register_listener(this); + inspect::register_handler({ "bd", "bridge" }, "Bridge Domains", this); +} + +void +bridge_domain::event_handler::handle_replay() +{ + m_db.replay(); +} + +dependency_t +bridge_domain::event_handler::order() const +{ + return (dependency_t::TABLE); +} + +void +bridge_domain::event_handler::show(std::ostream& os) +{ + m_db.dump(os); +} +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "mozilla") + * End: + */ -- cgit 1.2.3-korg