dhcp_configuration.hpp

#pragma once

#include "xyz/openbmc_project/Network/DHCPConfiguration/server.hpp"
#include <sdbusplus/bus.hpp>
#include <sdbusplus/server/object.hpp>
#include "config_parser.hpp"

#include <string>

namespace phosphor
{
namespace network
{

class Manager; // forward declaration of network manager.

namespace dhcp
{

using ConfigIntf =
    sdbusplus::xyz::openbmc_project::Network::server::DHCPConfiguration;

using Iface =
    sdbusplus::server::object::object<ConfigIntf>;


/** @class Configuration
 *  @brief DHCP configuration.
 *  @details A concrete implementation for the
 *  xyz.openbmc_project.Network.DHCP DBus interface.
 */
class Configuration : public Iface
{
    public:
        Configuration() = default;
        Configuration(const Configuration&) = delete;
        Configuration& operator=(const Configuration&) = delete;
        Configuration(Configuration&&) = delete;
        Configuration& operator=(Configuration&&) = delete;
        virtual ~Configuration() = default;

        /** @brief Constructor to put object onto bus at a dbus path.
         *  @param[in] bus - Bus to attach to.
         *  @param[in] objPath - Path to attach at.
         *  @param[in] parent - Parent object.
         */
        Configuration(sdbusplus::bus::bus& bus,
                      const std::string& objPath,
                      Manager& parent) :
            Iface(bus, objPath.c_str(), true),
            bus(bus),
            manager(parent)
        {
            ConfigIntf::dNSEnabled(getDHCPPropFromConf("UseDNS"));
            ConfigIntf::nTPEnabled(getDHCPPropFromConf("UseNTP"));
            ConfigIntf::hostNameEnabled(getDHCPPropFromConf("UseHostname"));
            ConfigIntf::sendHostNameEnabled(getDHCPPropFromConf("SendHostname"));
            emit_object_added();
        }

        /** @brief If true then DNS servers received from the DHCP server
         *         will be used and take precedence over any statically
         *         configured ones.
         *  @param[in] value - true if DNS server needed from DHCP server
         *                     else false.
         */
        bool dNSEnabled(bool value) override;

        /** @brief If true then NTP servers received from the DHCP server
                   will be used by systemd-timesyncd.
         *  @param[in] value - true if NTP server needed from DHCP server
         *                     else false.
         */
        bool nTPEnabled(bool value) override;

        /** @brief If true then Hostname received from the DHCP server will
         *         be set as the hostname of the system
         *  @param[in] value - true if hostname needed from the DHCP server
         *                     else false.
         *
         */
        bool hostNameEnabled(bool value) override;

        /** @brief if true then it will cause an Option 12 field, i.e machine's
         *         hostname, will be included in the DHCP packet.
         *  @param[in] value - true if machine's host name needs to be included
         *         in the DHCP packet.
         */
        bool sendHostNameEnabled(bool value) override;

        /** @brief read the DHCP Prop value from the configuration file
         *  @param[in] prop - DHCP Prop name.
         */
        bool getDHCPPropFromConf(const std::string& prop);

        /* @brief Network Manager needed the below function to know the
         *        value of the properties (ntpEnabled,dnsEnabled,hostnameEnabled
                  sendHostNameEnabled).
         *
         */
        using ConfigIntf::dNSEnabled;
        using ConfigIntf::nTPEnabled;
        using ConfigIntf::hostNameEnabled;
        using ConfigIntf::sendHostNameEnabled;

    private:

        /** @brief sdbusplus DBus bus connection. */
        sdbusplus::bus::bus& bus;

        /** @brief Network Manager object. */
        phosphor::network::Manager& manager;

};

} // namespace dhcp
} // namespace network
} // namespace phosphor