Add SNMP event callback for error notification
Added callback support for SNMP events.
Parse the callback message and raise SNMP trap
Clients specify the object paths to watch and callbacks
to invoke in the config yaml.
Change-Id: I105652f65e4e1c5354c934c88e4d59866540f71c
Signed-off-by: Marri Devender Rao <devenrao@in.ibm.com>
diff --git a/src/snmp_trap.hpp b/src/snmp_trap.hpp
new file mode 100644
index 0000000..2f93189
--- /dev/null
+++ b/src/snmp_trap.hpp
@@ -0,0 +1,84 @@
+#pragma once
+#include "callback.hpp"
+
+namespace phosphor
+{
+namespace dbus
+{
+namespace monitoring
+{
+/** @class Trap
+ * @brief Raises SNMP trap
+ */
+class Trap
+{
+ public:
+ Trap() = default;
+ Trap(const Trap&) = delete;
+ Trap(Trap&&) = default;
+ Trap& operator=(const Trap&) = delete;
+ Trap& operator=(Trap&&) = default;
+ virtual ~Trap() = default;
+ /** @brief Raise SNMP trap by parsing the sdbus message.
+ * @param[in] msg - sdbus message.
+ */
+ virtual void trap(sdbusplus::message::message& msg) const = 0;
+};
+
+/** @class ErrorTrap
+ * @brief Sends SNMP trap for the elog error
+ */
+class ErrorTrap : public Trap
+{
+ public:
+ ErrorTrap() = default;
+ ErrorTrap(const ErrorTrap&) = delete;
+ ErrorTrap(ErrorTrap&&) = default;
+ ErrorTrap& operator=(const ErrorTrap&) = delete;
+ ErrorTrap& operator=(ErrorTrap&&) = default;
+ ~ErrorTrap() = default;
+
+ /** @brief Raise SNMP trap by parsing the sdbus message.
+ * @param[in] msg - sdbus message.
+ */
+ void trap(sdbusplus::message::message& msg) const override;
+};
+
+/** @class SNMPTrap
+ * @brief SNMP trap callback implementation.
+ */
+template <typename T> class SNMPTrap : public Callback
+{
+ public:
+ SNMPTrap(const SNMPTrap&) = delete;
+ SNMPTrap(SNMPTrap&&) = default;
+ SNMPTrap& operator=(const SNMPTrap&) = delete;
+ SNMPTrap& operator=(SNMPTrap&&) = default;
+ virtual ~SNMPTrap() = default;
+ SNMPTrap() : Callback()
+ {
+ }
+
+ /** @brief Callback interface implementation.
+ * @param[in] ctc - context.
+ */
+ void operator()(Context ctx)
+ {
+ }
+
+ /** @brief Callback interface implementation.
+ * @param[in] ctc - context.
+ * @param[in] msg - sdbus message.
+ */
+ void operator()(Context ctx, sdbusplus::message::message& msg)
+ {
+ event.trap(msg);
+ }
+
+ private:
+ T event;
+};
+
+} // namespace monitoring
+} // namespace dbus
+} // namespace phosphor