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authorNeale Ranns <neale.ranns@cisco.com>2017-10-16 04:20:13 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-01 09:28:06 +0000
commit812ed39f9da336310e815c361ab5a9f118657d94 (patch)
tree9d8cddc917acbb65b3dc401d880d5eb2a7f392c6 /src/vpp-api/vom/bridge_domain.cpp
parent14edd97c20735ffd1c24000a7df78e154ac61478 (diff)
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 <neale.ranns@cisco.com> Co-authored-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vpp-api/vom/bridge_domain.cpp')
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diff --git a/src/vpp-api/vom/bridge_domain.cpp b/src/vpp-api/vom/bridge_domain.cpp
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+++ b/src/vpp-api/vom/bridge_domain.cpp
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+/*
+ * 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<uint32_t, bridge_domain> 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>
+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<bridge_domain> 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>
+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>
+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<bridge_domain::dump_cmd> 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<interface> 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:
+ */