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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 #ifndef __VOM_DHCP_CONFIG_H__
17 #define __VOM_DHCP_CONFIG_H__
20 #include "vom/inspect.hpp"
21 #include "vom/interface.hpp"
22 #include "vom/object_base.hpp"
24 #include "vom/singular_db.hpp"
27 namespace dhcp_config_cmds {
31 * A representation of DHCP client configuration on an interface
33 class dhcp_config : public object_base
37 * Construct a new object matching the desried state
39 dhcp_config(const interface& itf, const std::string& hostname);
42 * Construct a new object matching the desried state
44 dhcp_config(const interface& itf,
45 const std::string& hostname,
46 const l2_address_t& client_id);
51 dhcp_config(const dhcp_config& o);
59 * Return the 'singular' of the DHCP config that matches this object
61 std::shared_ptr<dhcp_config> singular() const;
64 * convert to string format for debug purposes
66 std::string to_string() const;
69 * Dump all DHCP configs into the stream provided
71 static void dump(std::ostream& os);
74 * A class that listens to DHCP Events
85 * listener's virtual function invoked when a DHCP event is
88 virtual void handle_dhcp_event(dhcp_config_cmds::events_cmd* cmd) = 0;
91 * Return the HW::item associated with this command
93 HW::item<bool>& status();
97 * The HW::item associated with this command
99 HW::item<bool> m_status;
104 * Class definition for listeners to OM events
106 class event_handler : public OM::listener, public inspect::command_handler
110 virtual ~event_handler() = default;
113 * Handle a populate event
115 void handle_populate(const client_db::key_t& key);
118 * Handle a replay event
120 void handle_replay();
123 * Show the object in the Singular DB
125 void show(std::ostream& os);
128 * Get the sortable Id of the listener
130 dependency_t order() const;
134 * event_handler to register with OM
136 static event_handler m_evh;
139 * Enquue commonds to the VPP command Q for the update
141 void update(const dhcp_config& obj);
144 * Find or add DHCP config to the OM
146 static std::shared_ptr<dhcp_config> find_or_add(const dhcp_config& temp);
149 * It's the OM class that calls singular()
154 * It's the singular_db class that calls replay()
156 friend class singular_db<interface::key_type, dhcp_config>;
159 * Sweep/reap the object if still stale
164 * replay the object to create it in hardware
169 * A reference counting pointer to the interface on which DHCP config
170 * resides. By holding the reference here, we can guarantee that
171 * this object will outlive the interface
173 const std::shared_ptr<interface> m_itf;
176 * The hostname in the DHCP configuration
178 const std::string m_hostname;
181 * The option-61 client_id in the DHCP configuration
183 const l2_address_t m_client_id;
186 * HW configuration for the binding. The bool representing the
189 HW::item<bool> m_binding;
192 * A map of all Dhcp configs keyed against the interface.
194 static singular_db<interface::key_type, dhcp_config> m_db;
199 * fd.io coding-style-patch-verification: ON
202 * eval: (c-set-style "mozilla")