sdbusplus: use shorter type aliases

The sdbusplus headers provide shortened aliases for many types.
Switch to using them to provide better code clarity and shorter
lines.  Possible replacements are for:
  * bus_t
  * exception_t
  * manager_t
  * match_t
  * message_t
  * object_t
  * slot_t

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I41103c892db258a85640aa1442acd9a295c8a847
diff --git a/bmc_state_manager.cpp b/bmc_state_manager.cpp
index 85eb3cf..e1cbaf2 100644
--- a/bmc_state_manager.cpp
+++ b/bmc_state_manager.cpp
@@ -59,7 +59,7 @@
         auto result = this->bus.call(method);
         result.read(unitTargetPath);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         // Not all input units will have been loaded yet so just return an
         // empty string if an exception is caught in this path
@@ -81,7 +81,7 @@
         // Is input target active or inactive?
         result.read(currentState);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         info("Error in ActiveState Get: {ERROR}", "ERROR", e);
         return std::string{};
@@ -125,7 +125,7 @@
     {
         this->bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Failed to subscribe to systemd signals: {ERROR}", "ERROR", e);
         elog<InternalFailure>();
@@ -151,7 +151,7 @@
         {
             this->bus.call(method);
         }
-        catch (const sdbusplus::exception::exception& e)
+        catch (const sdbusplus::exception_t& e)
         {
             info("Error in HardReboot: {ERROR}", "ERROR", e);
         }
@@ -181,7 +181,7 @@
         {
             this->bus.call(method);
         }
-        catch (const sdbusplus::exception::exception& e)
+        catch (const sdbusplus::exception_t& e)
         {
             info("Error in StartUnit - replace-irreversibly: {ERROR}", "ERROR",
                  e);
@@ -190,7 +190,7 @@
     return;
 }
 
-int BMC::bmcStateChange(sdbusplus::message::message& msg)
+int BMC::bmcStateChange(sdbusplus::message_t& msg)
 {
     uint32_t newStateID{};
     sdbusplus::message::object_path newStateObjPath;
@@ -215,7 +215,7 @@
         {
             this->bus.call(method);
         }
-        catch (const sdbusplus::exception::exception& e)
+        catch (const sdbusplus::exception_t& e)
         {
             info("Error in Unsubscribe: {ERROR}", "ERROR", e);
         }
diff --git a/bmc_state_manager.hpp b/bmc_state_manager.hpp
index 239ad10..026cb3f 100644
--- a/bmc_state_manager.hpp
+++ b/bmc_state_manager.hpp
@@ -15,7 +15,7 @@
 namespace manager
 {
 
-using BMCInherit = sdbusplus::server::object::object<
+using BMCInherit = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::State::server::BMC>;
 namespace sdbusRule = sdbusplus::bus::match::rules;
 
@@ -33,7 +33,7 @@
      * @param[in] busName   - The Dbus name to own
      * @param[in] objPath   - The Dbus object path
      */
-    BMC(sdbusplus::bus::bus& bus, const char* objPath) :
+    BMC(sdbusplus::bus_t& bus, const char* objPath) :
         BMCInherit(bus, objPath, BMCInherit::action::defer_emit), bus(bus),
         stateSignal(std::make_unique<decltype(stateSignal)::element_type>(
             bus,
@@ -97,10 +97,10 @@
      * @param[in]  msg       - Data associated with subscribed signal
      *
      */
-    int bmcStateChange(sdbusplus::message::message& msg);
+    int bmcStateChange(sdbusplus::message_t& msg);
 
     /** @brief Persistent sdbusplus DBus bus connection. **/
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Used to subscribe to dbus system state changes **/
     std::unique_ptr<sdbusplus::bus::match_t> stateSignal;
diff --git a/bmc_state_manager_main.cpp b/bmc_state_manager_main.cpp
index 5867e51..1d6f617 100644
--- a/bmc_state_manager_main.cpp
+++ b/bmc_state_manager_main.cpp
@@ -13,7 +13,7 @@
     auto objPathInst = std::string(BMC_OBJPATH) + '0';
 
     // Add sdbusplus ObjectManager.
-    sdbusplus::server::manager::manager objManager(bus, objPathInst.c_str());
+    sdbusplus::server::manager_t objManager(bus, objPathInst.c_str());
 
     phosphor::state::manager::BMC manager(bus, objPathInst.c_str());
 
diff --git a/chassis_state_manager.cpp b/chassis_state_manager.cpp
index 0e962c1..9c16ea0 100644
--- a/chassis_state_manager.cpp
+++ b/chassis_state_manager.cpp
@@ -78,7 +78,7 @@
             SYSTEMD_SERVICE, SYSTEMD_OBJ_PATH, SYSTEMD_INTERFACE, "Subscribe");
         this->bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Failed to subscribe to systemd signals: {ERROR}", "ERROR", e);
         elog<InternalFailure>();
@@ -179,7 +179,7 @@
             }
         }
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         // It's acceptable for the pgood state service to not be available
         // since it will notify us of the pgood state when it comes up.
@@ -248,7 +248,7 @@
         auto mapperResponseMsg = bus.call(mapper);
         mapperResponseMsg.read(mapperResponse);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in mapper GetSubTree call for UPS: {ERROR}", "ERROR", e);
         throw;
@@ -326,7 +326,7 @@
                     return false;
                 }
             }
-            catch (const sdbusplus::exception::exception& e)
+            catch (const sdbusplus::exception_t& e)
             {
                 error("Error reading UPS property, error: {ERROR}, "
                       "service: {SERVICE} path: {PATH}",
@@ -354,7 +354,7 @@
         auto mapperResponseMsg = bus.call(mapper);
         mapperResponseMsg.read(mapperResponse);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in mapper GetSubTree call for PowerSystemInputs: {ERROR}",
               "ERROR", e);
@@ -392,7 +392,7 @@
                     return false;
                 }
             }
-            catch (const sdbusplus::exception::exception& e)
+            catch (const sdbusplus::exception_t& e)
             {
                 error(
                     "Error reading Power System Inputs property, error: {ERROR}, "
@@ -405,7 +405,7 @@
     return true;
 }
 
-void Chassis::uPowerChangeEvent(sdbusplus::message::message& msg)
+void Chassis::uPowerChangeEvent(sdbusplus::message_t& msg)
 {
     debug("UPS Property Change Event Triggered");
     std::string statusInterface;
@@ -444,7 +444,7 @@
     return;
 }
 
-void Chassis::powerSysInputsChangeEvent(sdbusplus::message::message& msg)
+void Chassis::powerSysInputsChangeEvent(sdbusplus::message_t& msg)
 {
     debug("Power System Inputs Property Change Event Triggered");
     std::string statusInterface;
@@ -507,7 +507,7 @@
         auto result = this->bus.call(method);
         result.read(unitTargetPath);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in GetUnit call: {ERROR}", "ERROR", e);
         return false;
@@ -525,7 +525,7 @@
         auto result = this->bus.call(method);
         result.read(currentState);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in ActiveState Get: {ERROR}", "ERROR", e);
         return false;
@@ -536,7 +536,7 @@
            currentStateStr == ACTIVATING_STATE;
 }
 
-int Chassis::sysStateChange(sdbusplus::message::message& msg)
+int Chassis::sysStateChange(sdbusplus::message_t& msg)
 {
     sdbusplus::message::object_path newStateObjPath;
     std::string newStateUnit{};
@@ -550,7 +550,7 @@
         uint32_t newStateID{};
         msg.read(newStateID, newStateObjPath, newStateUnit, newStateResult);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in state change - bad encoding: {ERROR} {REPLY_SIG}",
               "ERROR", e, "REPLY_SIG", msg.get_signature());
diff --git a/chassis_state_manager.hpp b/chassis_state_manager.hpp
index 9053951..d12ad36 100644
--- a/chassis_state_manager.hpp
+++ b/chassis_state_manager.hpp
@@ -22,7 +22,7 @@
 namespace manager
 {
 
-using ChassisInherit = sdbusplus::server::object::object<
+using ChassisInherit = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::State::server::Chassis,
     sdbusplus::xyz::openbmc_project::State::server::PowerOnHours>;
 namespace sdbusRule = sdbusplus::bus::match::rules;
@@ -46,7 +46,7 @@
      * @param[in] objPath   - The Dbus object path
      * @param[in] id        - Chassis id
      */
-    Chassis(sdbusplus::bus::bus& bus, const char* objPath, size_t id) :
+    Chassis(sdbusplus::bus_t& bus, const char* objPath, size_t id) :
         ChassisInherit(bus, objPath, ChassisInherit::action::defer_emit),
         bus(bus),
         systemdSignals(
@@ -160,10 +160,10 @@
      * @param[in]  msg       - Data associated with subscribed signal
      *
      */
-    int sysStateChange(sdbusplus::message::message& msg);
+    int sysStateChange(sdbusplus::message_t& msg);
 
     /** @brief Persistent sdbusplus DBus connection. */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Used to subscribe to dbus systemd signals **/
     sdbusplus::bus::match_t systemdSignals;
@@ -253,7 +253,7 @@
      * @param[in]  msg              - Data associated with subscribed signal
      *
      */
-    void uPowerChangeEvent(sdbusplus::message::message& msg);
+    void uPowerChangeEvent(sdbusplus::message_t& msg);
 
     /** @brief Process PowerSystemInputs property changes
      *
@@ -263,7 +263,7 @@
      * @param[in]  msg              - Data associated with subscribed signal
      *
      */
-    void powerSysInputsChangeEvent(sdbusplus::message::message& msg);
+    void powerSysInputsChangeEvent(sdbusplus::message_t& msg);
 };
 
 } // namespace manager
diff --git a/chassis_state_manager_main.cpp b/chassis_state_manager_main.cpp
index c1dccf7..96542b9 100644
--- a/chassis_state_manager_main.cpp
+++ b/chassis_state_manager_main.cpp
@@ -69,7 +69,7 @@
     }
 
     // Add sdbusplus ObjectManager.
-    sdbusplus::server::manager::manager objManager(bus, objPathInst.c_str());
+    sdbusplus::server::manager_t objManager(bus, objPathInst.c_str());
     phosphor::state::manager::Chassis manager(bus, objPathInst.c_str(),
                                               chassisId);
 
diff --git a/discover_system_state.cpp b/discover_system_state.cpp
index e7f0978..28399bd 100644
--- a/discover_system_state.cpp
+++ b/discover_system_state.cpp
@@ -182,7 +182,7 @@
             }
         }
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in PowerRestorePolicy Get: {ERROR}", "ERROR", e);
         elog<InternalFailure>();
diff --git a/host_check.cpp b/host_check.cpp
index 7e6dbef..ced4ba3 100644
--- a/host_check.cpp
+++ b/host_check.cpp
@@ -46,7 +46,7 @@
 
 // Find all implementations of Condition interface and check if host is
 // running over it
-bool checkFirmwareConditionRunning(sdbusplus::bus::bus& bus)
+bool checkFirmwareConditionRunning(sdbusplus::bus_t& bus)
 {
     using FirmwareCondition = HostFirmware::FirmwareCondition;
     // Find all implementations of host firmware condition interface
@@ -63,7 +63,7 @@
         auto mapperResponseMsg = bus.call(mapper);
         mapperResponseMsg.read(mapperResponse);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error(
             "Error in mapper GetSubTree call for HostFirmware condition: {ERROR}",
@@ -116,7 +116,7 @@
                     return true;
                 }
             }
-            catch (const sdbusplus::exception::exception& e)
+            catch (const sdbusplus::exception_t& e)
             {
                 error("Error reading HostFirmware condition, error: {ERROR}, "
                       "service: {SERVICE} path: {PATH}",
@@ -129,7 +129,7 @@
 }
 
 // Helper function to check if chassis power is on
-bool isChassiPowerOn(sdbusplus::bus::bus& bus, size_t id)
+bool isChassiPowerOn(sdbusplus::bus_t& bus, size_t id)
 {
     auto svcname = std::string{CHASSIS_STATE_SVC} + std::to_string(id);
     auto objpath = std::string{CHASSIS_STATE_PATH} + std::to_string(id);
@@ -153,7 +153,7 @@
             return true;
         }
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error reading Chassis Power State, error: {ERROR}, "
               "service: {SERVICE} path: {PATH}",
diff --git a/host_condition_gpio/host_condition.hpp b/host_condition_gpio/host_condition.hpp
index eaeefc7..35d8313 100644
--- a/host_condition_gpio/host_condition.hpp
+++ b/host_condition_gpio/host_condition.hpp
@@ -11,7 +11,7 @@
 namespace condition
 {
 
-using HostIntf = sdbusplus::server::object::object<
+using HostIntf = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::Condition::server::HostFirmware>;
 
 class Host : public HostIntf
@@ -24,7 +24,7 @@
     Host& operator=(Host&&) = delete;
     virtual ~Host() = default;
 
-    Host(sdbusplus::bus::bus& bus, const std::string& path,
+    Host(sdbusplus::bus_t& bus, const std::string& path,
          const std::string& hostId) :
         HostIntf(bus, path.c_str()),
         lineName("host" + hostId)
diff --git a/host_condition_gpio/host_condition_main.cpp b/host_condition_gpio/host_condition_main.cpp
index 6148450..cdac79c 100644
--- a/host_condition_gpio/host_condition_main.cpp
+++ b/host_condition_gpio/host_condition_main.cpp
@@ -27,7 +27,7 @@
     std::string busName = HOST_GPIOS_BUSNAME;
 
     // Add sdbusplus ObjectManager
-    sdbusplus::server::manager::manager objManager(bus, objGroupName.c_str());
+    sdbusplus::server::manager_t objManager(bus, objGroupName.c_str());
 
     // For now, we only support checking Host0 status
     auto host = std::make_unique<phosphor::condition::Host>(
diff --git a/host_reset_recovery.cpp b/host_reset_recovery.cpp
index 7898622..fe94f72 100644
--- a/host_reset_recovery.cpp
+++ b/host_reset_recovery.cpp
@@ -38,7 +38,7 @@
 constexpr auto SYSTEMD_INTERFACE = "org.freedesktop.systemd1.Manager";
 constexpr auto HOST_STATE_QUIESCE_TGT = "obmc-host-quiesce@0.target";
 
-bool wasHostBooting(sdbusplus::bus::bus& bus)
+bool wasHostBooting(sdbusplus::bus_t& bus)
 {
     try
     {
@@ -64,7 +64,7 @@
         info("Host was booting before BMC reboot: {BOOTPROGRESS}",
              "BOOTPROGRESS", bootProgress);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error reading BootProgress, error {ERROR}, service {SERVICE}, "
               "path {PATH}",
@@ -76,7 +76,7 @@
     return true;
 }
 
-void createErrorLog(sdbusplus::bus::bus& bus)
+void createErrorLog(sdbusplus::bus_t& bus)
 {
     try
     {
@@ -95,7 +95,7 @@
         method.append(errorMessage, level, additionalData);
         auto resp = bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error(
             "sdbusplus D-Bus call exception, error {ERROR}, objpath {OBJPATH}, "
@@ -126,7 +126,7 @@
     return !f.good();
 }
 
-void moveToHostQuiesce(sdbusplus::bus::bus& bus)
+void moveToHostQuiesce(sdbusplus::bus_t& bus)
 {
     try
     {
@@ -138,7 +138,7 @@
 
         bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("sdbusplus call exception starting quiesce target: {ERROR}",
               "ERROR", e);
diff --git a/host_state_manager.cpp b/host_state_manager.cpp
index f1709cd..6ff1f56 100644
--- a/host_state_manager.cpp
+++ b/host_state_manager.cpp
@@ -67,7 +67,7 @@
     {
         this->bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Failed to subscribe to systemd signals: {ERROR}", "ERROR", e);
         elog<InternalFailure>();
@@ -170,7 +170,7 @@
         auto result = this->bus.call(method);
         result.read(unitTargetPath);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in GetUnit call: {ERROR}", "ERROR", e);
         return false;
@@ -188,7 +188,7 @@
         auto result = this->bus.call(method);
         result.read(currentState);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in ActiveState Get: {ERROR}", "ERROR", e);
         return false;
@@ -275,14 +275,14 @@
             return false;
         }
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in AutoReboot Get, {ERROR}", "ERROR", e);
         return false;
     }
 }
 
-void Host::sysStateChangeJobRemoved(sdbusplus::message::message& msg)
+void Host::sysStateChangeJobRemoved(sdbusplus::message_t& msg)
 {
     uint32_t newStateID{};
     sdbusplus::message::object_path newStateObjPath;
@@ -339,7 +339,7 @@
     }
 }
 
-void Host::sysStateChangeJobNew(sdbusplus::message::message& msg)
+void Host::sysStateChangeJobNew(sdbusplus::message_t& msg)
 {
     uint32_t newStateID{};
     sdbusplus::message::object_path newStateObjPath;
diff --git a/host_state_manager.hpp b/host_state_manager.hpp
index 087b5f0..cd1389c 100644
--- a/host_state_manager.hpp
+++ b/host_state_manager.hpp
@@ -24,7 +24,7 @@
 namespace manager
 {
 
-using HostInherit = sdbusplus::server::object::object<
+using HostInherit = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::State::server::Host,
     sdbusplus::xyz::openbmc_project::State::Boot::server::Progress,
     sdbusplus::xyz::openbmc_project::Control::Boot::server::RebootAttempts,
@@ -53,7 +53,7 @@
      * @param[in] objPath   - The Dbus object path
      * @param[in] id        - The Host id
      */
-    Host(sdbusplus::bus::bus& bus, const char* objPath, size_t id) :
+    Host(sdbusplus::bus_t& bus, const char* objPath, size_t id) :
         HostInherit(bus, objPath, HostInherit::action::defer_emit), bus(bus),
         systemdSignalJobRemoved(
             bus,
@@ -211,7 +211,7 @@
      * @param[in]  msg       - Data associated with subscribed signal
      *
      */
-    void sysStateChangeJobRemoved(sdbusplus::message::message& msg);
+    void sysStateChangeJobRemoved(sdbusplus::message_t& msg);
 
     /** @brief Check if JobNew systemd signal is relevant to this object
      *
@@ -224,7 +224,7 @@
      * @param[in]  msg       - Data associated with subscribed signal
      *
      */
-    void sysStateChangeJobNew(sdbusplus::message::message& msg);
+    void sysStateChangeJobNew(sdbusplus::message_t& msg);
 
     /** @brief Decrement reboot count
      *
@@ -334,7 +334,7 @@
     const std::string& getTarget(Transition tranReq);
 
     /** @brief Persistent sdbusplus DBus bus connection. */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Used to subscribe to dbus systemd JobRemoved signal **/
     sdbusplus::bus::match_t systemdSignalJobRemoved;
diff --git a/host_state_manager_main.cpp b/host_state_manager_main.cpp
index 13c8f53..484d6e5 100644
--- a/host_state_manager_main.cpp
+++ b/host_state_manager_main.cpp
@@ -61,7 +61,7 @@
     }
 
     // Add sdbusplus ObjectManager.
-    sdbusplus::server::manager::manager objManager(bus, objPathInst.c_str());
+    sdbusplus::server::manager_t objManager(bus, objPathInst.c_str());
 
     phosphor::state::manager::Host manager(bus, objPathInst.c_str(), hostId);
 
diff --git a/hypervisor_state_manager.cpp b/hypervisor_state_manager.cpp
index d0fd193..8e8697b 100644
--- a/hypervisor_state_manager.cpp
+++ b/hypervisor_state_manager.cpp
@@ -91,7 +91,7 @@
     }
 }
 
-void Hypervisor::bootProgressChangeEvent(sdbusplus::message::message& msg)
+void Hypervisor::bootProgressChangeEvent(sdbusplus::message_t& msg)
 {
     std::string statusInterface;
     std::map<std::string, std::variant<std::string>> msgData;
diff --git a/hypervisor_state_manager.hpp b/hypervisor_state_manager.hpp
index 929c1aa..7b005f6 100644
--- a/hypervisor_state_manager.hpp
+++ b/hypervisor_state_manager.hpp
@@ -14,7 +14,7 @@
 namespace manager
 {
 
-using HypervisorInherit = sdbusplus::server::object::object<
+using HypervisorInherit = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::State::server::Host>;
 
 namespace server = sdbusplus::xyz::openbmc_project::State::server;
@@ -40,7 +40,7 @@
      * @param[in] bus       - The Dbus bus object
      * @param[in] objPath   - The Dbus object path
      */
-    Hypervisor(sdbusplus::bus::bus& bus, const char* objPath) :
+    Hypervisor(sdbusplus::bus_t& bus, const char* objPath) :
         HypervisorInherit(bus, objPath,
                           HypervisorInherit::action::emit_object_added),
         bus(bus),
@@ -80,10 +80,10 @@
      * @param[in]  msg              - Data associated with subscribed signal
      *
      */
-    void bootProgressChangeEvent(sdbusplus::message::message& msg);
+    void bootProgressChangeEvent(sdbusplus::message_t& msg);
 
     /** @brief Persistent sdbusplus DBus bus connection. */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Watch BootProgress changes to know hypervisor state **/
     sdbusplus::bus::match_t bootProgressChangeSignal;
diff --git a/hypervisor_state_manager_main.cpp b/hypervisor_state_manager_main.cpp
index 61154d6..bb94750 100644
--- a/hypervisor_state_manager_main.cpp
+++ b/hypervisor_state_manager_main.cpp
@@ -14,7 +14,7 @@
     auto objPathInst = std::string{HYPERVISOR_OBJPATH} + '0';
 
     // Add sdbusplus ObjectManager.
-    sdbusplus::server::manager::manager objManager(bus, objPathInst.c_str());
+    sdbusplus::server::manager_t objManager(bus, objPathInst.c_str());
 
     phosphor::state::manager::Hypervisor manager(bus, objPathInst.c_str());
 
diff --git a/scheduled_host_transition.hpp b/scheduled_host_transition.hpp
index ec97c52..352fc8c 100644
--- a/scheduled_host_transition.hpp
+++ b/scheduled_host_transition.hpp
@@ -18,7 +18,7 @@
 
 using Transition =
     sdbusplus::xyz::openbmc_project::State::server::Host::Transition;
-using ScheduledHostTransitionInherit = sdbusplus::server::object::object<
+using ScheduledHostTransitionInherit = sdbusplus::server::object_t<
     sdbusplus::xyz::openbmc_project::State::server::ScheduledHostTransition>;
 
 /** @class ScheduledHostTransition
@@ -29,7 +29,7 @@
 class ScheduledHostTransition : public ScheduledHostTransitionInherit
 {
   public:
-    ScheduledHostTransition(sdbusplus::bus::bus& bus, const char* objPath,
+    ScheduledHostTransition(sdbusplus::bus_t& bus, const char* objPath,
                             size_t id, const sdeventplus::Event& event) :
         ScheduledHostTransitionInherit(
             bus, objPath, ScheduledHostTransition::action::defer_emit),
@@ -60,7 +60,7 @@
     friend class TestScheduledHostTransition;
 
     /** @brief sdbusplus bus client connection */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Host id. **/
     const size_t id = 0;
diff --git a/scheduled_host_transition_main.cpp b/scheduled_host_transition_main.cpp
index 600ee72..7e02f8d 100644
--- a/scheduled_host_transition_main.cpp
+++ b/scheduled_host_transition_main.cpp
@@ -51,7 +51,7 @@
     }
 
     // Add sdbusplus ObjectManager.
-    sdbusplus::server::manager::manager objManager(bus, objPathInst.c_str());
+    sdbusplus::server::manager_t objManager(bus, objPathInst.c_str());
 
     phosphor::state::manager::ScheduledHostTransition manager(
         bus, objPathInst.c_str(), hostId, event);
diff --git a/secure_boot_check.cpp b/secure_boot_check.cpp
index 877b318..fc5cec0 100644
--- a/secure_boot_check.cpp
+++ b/secure_boot_check.cpp
@@ -36,7 +36,7 @@
         auto reply = bus.call(method);
         reply.read(mfgModeEnabled);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in property Get, error {ERROR}, property {PROPERTY}",
               "ERROR", e, "PROPERTY", propertyName);
diff --git a/settings.cpp b/settings.cpp
index 8146261..ac99660 100644
--- a/settings.cpp
+++ b/settings.cpp
@@ -18,7 +18,7 @@
 constexpr auto mapperPath = "/xyz/openbmc_project/object_mapper";
 constexpr auto mapperIntf = "xyz.openbmc_project.ObjectMapper";
 
-Objects::Objects(sdbusplus::bus::bus& bus, const Path& root) : bus(bus)
+Objects::Objects(sdbusplus::bus_t& bus, const Path& root) : bus(bus)
 {
     std::vector<std::string> settingsIntfs = {autoRebootIntf, powerRestoreIntf};
     auto depth = 0;
@@ -44,7 +44,7 @@
             elog<InternalFailure>();
         }
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in mapper GetSubTree: {ERROR}", "ERROR", e);
         elog<InternalFailure>();
@@ -112,7 +112,7 @@
         auto response = bus.call(mapperCall);
         response.read(result);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in mapper GetObject: {ERROR}", "ERROR", e);
         elog<InternalFailure>();
@@ -127,7 +127,7 @@
     return result.begin()->first;
 }
 
-HostObjects::HostObjects(sdbusplus::bus::bus& bus, size_t id) :
+HostObjects::HostObjects(sdbusplus::bus_t& bus, size_t id) :
     Objects(bus, Path("/xyz/openbmc_project/control/host") + std::to_string(id))
 {}
 
diff --git a/settings.hpp b/settings.hpp
index b54f202..8f2dcda 100644
--- a/settings.hpp
+++ b/settings.hpp
@@ -27,7 +27,7 @@
      * @param[in] bus  - The Dbus bus object
      * @param[in] root - The root object path
      */
-    explicit Objects(sdbusplus::bus::bus& bus, const Path& root = defaultRoot);
+    explicit Objects(sdbusplus::bus_t& bus, const Path& root = defaultRoot);
     Objects(const Objects&) = delete;
     Objects& operator=(const Objects&) = delete;
     Objects(Objects&&) = delete;
@@ -58,7 +58,7 @@
     Path powerRestorePolicyOneTime;
 
     /** @brief The Dbus bus object */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 };
 
 /** @class HostObjects
@@ -74,7 +74,7 @@
      * @param[in] bus - The Dbus bus object
      * @param[in] id  - The Host id
      */
-    HostObjects(sdbusplus::bus::bus& bus, size_t id);
+    HostObjects(sdbusplus::bus_t& bus, size_t id);
 };
 
 } // namespace settings
diff --git a/systemd_target_signal.cpp b/systemd_target_signal.cpp
index 5f7036f..8c76b97 100644
--- a/systemd_target_signal.cpp
+++ b/systemd_target_signal.cpp
@@ -34,7 +34,7 @@
     {
         this->bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Failed to start BMC quiesce target, exception:{ERROR}", "ERROR",
               e);
@@ -62,7 +62,7 @@
     {
         this->bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Failed to create systemd target error, error:{ERROR_MSG}, "
               "result:{RESULT}, exception:{ERROR}",
@@ -113,7 +113,7 @@
     return (std::string{});
 }
 
-void SystemdTargetLogging::systemdUnitChange(sdbusplus::message::message& msg)
+void SystemdTargetLogging::systemdUnitChange(sdbusplus::message_t& msg)
 {
     uint32_t id;
     sdbusplus::message::object_path objPath;
@@ -136,8 +136,7 @@
     return;
 }
 
-void SystemdTargetLogging::processNameChangeSignal(
-    sdbusplus::message::message& msg)
+void SystemdTargetLogging::processNameChangeSignal(sdbusplus::message_t& msg)
 {
     std::string name;      // well-known
     std::string old_owner; // unique-name
@@ -164,7 +163,7 @@
     {
         this->bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         // If error indicates systemd is not on dbus yet then do nothing.
         // The systemdNameChangeSignals callback will detect when it is on
diff --git a/systemd_target_signal.hpp b/systemd_target_signal.hpp
index 61f3f06..e6bbcbe 100644
--- a/systemd_target_signal.hpp
+++ b/systemd_target_signal.hpp
@@ -30,7 +30,7 @@
 
     SystemdTargetLogging(const TargetErrorData& targetData,
                          const ServiceMonitorData& serviceData,
-                         sdbusplus::bus::bus& bus) :
+                         sdbusplus::bus_t& bus) :
         targetData(targetData),
         serviceData(serviceData), bus(bus),
         systemdJobRemovedSignal(
@@ -92,7 +92,7 @@
      * @param[in]  msg       - Data associated with subscribed signal
      *
      */
-    void systemdUnitChange(sdbusplus::message::message& msg);
+    void systemdUnitChange(sdbusplus::message_t& msg);
 
     /** @brief Wait for systemd to show up on dbus
      *
@@ -102,7 +102,7 @@
      * @param[in]  msg       - Data associated with subscribed signal
      *
      */
-    void processNameChangeSignal(sdbusplus::message::message& msg);
+    void processNameChangeSignal(sdbusplus::message_t& msg);
 
     /** @brief Systemd targets to monitor and error logs to create */
     const TargetErrorData& targetData;
@@ -111,7 +111,7 @@
     const ServiceMonitorData& serviceData;
 
     /** @brief Persistent sdbusplus DBus bus connection. */
-    sdbusplus::bus::bus& bus;
+    sdbusplus::bus_t& bus;
 
     /** @brief Used to subscribe to dbus systemd JobRemoved signals **/
     sdbusplus::bus::match_t systemdJobRemovedSignal;
diff --git a/test/test_scheduled_host_transition.cpp b/test/test_scheduled_host_transition.cpp
index 972248c..76b625a 100644
--- a/test/test_scheduled_host_transition.cpp
+++ b/test/test_scheduled_host_transition.cpp
@@ -26,7 +26,7 @@
   public:
     sdeventplus::Event event;
     sdbusplus::SdBusMock sdbusMock;
-    sdbusplus::bus::bus mockedBus = sdbusplus::get_mocked_new(&sdbusMock);
+    sdbusplus::bus_t mockedBus = sdbusplus::get_mocked_new(&sdbusMock);
     ScheduledHostTransition scheduledHostTransition;
 
     TestScheduledHostTransition() :
diff --git a/utils.cpp b/utils.cpp
index 77b20eb..ced4e90 100644
--- a/utils.cpp
+++ b/utils.cpp
@@ -20,7 +20,7 @@
 constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
 constexpr auto PROPERTY_INTERFACE = "org.freedesktop.DBus.Properties";
 
-std::string getService(sdbusplus::bus::bus& bus, std::string path,
+std::string getService(sdbusplus::bus_t& bus, std::string path,
                        std::string interface)
 {
     auto mapper = bus.new_method_call(MAPPER_BUSNAME, MAPPER_PATH,
@@ -44,7 +44,7 @@
             throw std::runtime_error("Error no matching service");
         }
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in mapper call with path {PATH}, interface "
               "{INTERFACE}, and exception {ERROR}",
@@ -55,7 +55,7 @@
     return mapperResponse.begin()->first;
 }
 
-std::string getProperty(sdbusplus::bus::bus& bus, const std::string& path,
+std::string getProperty(sdbusplus::bus_t& bus, const std::string& path,
                         const std::string& interface,
                         const std::string& propertyName)
 {
@@ -72,7 +72,7 @@
         auto reply = bus.call(method);
         reply.read(property);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Error in property Get, error {ERROR}, property {PROPERTY}",
               "ERROR", e, "PROPERTY", propertyName);
@@ -89,7 +89,7 @@
     return std::get<std::string>(property);
 }
 
-void setProperty(sdbusplus::bus::bus& bus, const std::string& path,
+void setProperty(sdbusplus::bus_t& bus, const std::string& path,
                  const std::string& interface, const std::string& property,
                  const std::string& value)
 {
@@ -130,7 +130,7 @@
 }
 
 void createError(
-    sdbusplus::bus::bus& bus, const std::string& errorMsg,
+    sdbusplus::bus_t& bus, const std::string& errorMsg,
     sdbusplus::xyz::openbmc_project::Logging::server::Entry::Level errLevel,
     std::map<std::string, std::string> additionalData)
 {
@@ -146,7 +146,7 @@
         method.append(errorMsg, errLevel, additionalData);
         auto resp = bus.call(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("sdbusplus D-Bus call exception, error {ERROR} trying to create "
               "an error with {ERROR_MSG}",
@@ -162,7 +162,7 @@
     }
 }
 
-void createBmcDump(sdbusplus::bus::bus& bus)
+void createBmcDump(sdbusplus::bus_t& bus)
 {
     auto method = bus.new_method_call(
         "xyz.openbmc_project.Dump.Manager", "/xyz/openbmc_project/dump/bmc",
@@ -174,7 +174,7 @@
     {
         bus.call_noreply(method);
     }
-    catch (const sdbusplus::exception::exception& e)
+    catch (const sdbusplus::exception_t& e)
     {
         error("Failed to create BMC dump, exception:{ERROR}", "ERROR", e);
         // just continue, this is error path anyway so we're just collecting
diff --git a/utils.hpp b/utils.hpp
index 5e747b7..c7f3947 100644
--- a/utils.hpp
+++ b/utils.hpp
@@ -20,7 +20,7 @@
  *
  * @return The name of the service
  */
-std::string getService(sdbusplus::bus::bus& bus, std::string path,
+std::string getService(sdbusplus::bus_t& bus, std::string path,
                        std::string interface);
 
 /** @brief Get the value of input property
@@ -32,7 +32,7 @@
  *
  * @return The value of the property
  */
-std::string getProperty(sdbusplus::bus::bus& bus, const std::string& path,
+std::string getProperty(sdbusplus::bus_t& bus, const std::string& path,
                         const std::string& interface,
                         const std::string& propertyName);
 
@@ -44,7 +44,7 @@
  * @param[in] property     - The property name to set
  * @param[in] value        - The value of property
  */
-void setProperty(sdbusplus::bus::bus& bus, const std::string& path,
+void setProperty(sdbusplus::bus_t& bus, const std::string& path,
                  const std::string& interface, const std::string& property,
                  const std::string& value);
 
@@ -64,7 +64,7 @@
  * parampin] additionalData - Optional extra data to add to the log
  */
 void createError(
-    sdbusplus::bus::bus& bus, const std::string& errorMsg,
+    sdbusplus::bus_t& bus, const std::string& errorMsg,
     sdbusplus::xyz::openbmc_project::Logging::server::Entry::Level errLevel,
     std::map<std::string, std::string> additionalData = {});
 
@@ -72,7 +72,7 @@
  *
  * @param[in] bus          - The Dbus bus object
  */
-void createBmcDump(sdbusplus::bus::bus& bus);
+void createBmcDump(sdbusplus::bus_t& bus);
 
 } // namespace utils
 } // namespace manager