NAME

       snmpm_mpd - Message Processing and Dispatch module for the SNMP manager

DESCRIPTION

       The  module snmpm_mpd implements the version independent Message Processing and Dispatch functionality in
       SNMP for the manager. It is supposed to be used from a Network Interface process (Definition  of  Manager
       Net if).

EXPORTS

       init_mpd(Vsns) -> mpd_state()

              Types:

                 Vsns = [Vsn]
                 Vsn = v1 | v2 | v3

              This  function  can  be called from the net_if process at start-up. The options list defines which
              versions to use.

              It also initializes some SNMP counters.

       process_msg(Msg, TDomain, Addr, Port, State, NoteStore, Logger) ->  {ok,  Vsn,  Pdu,  PduMS,  MsgData}  |
       {discarded, Reason}

              Types:

                 Msg = binary()
                 TDomain = snmpUDPDomain
                 Addr = {integer(), integer(), integer(), integer()}
                 Port = integer()
                 State = mpd_state()
                 NoteStore = pid()
                 Logger = function()
                 Vsn = 'version-1' | 'version-2' | 'version-3'
                 Pdu = #pdu
                 PduMs = integer()
                 MsgData = term()

              Processes  an  incoming  message.  Performs authentication and decryption as necessary. The return
              values should be passed the manager server.

              NoteStore is the pid() of the note-store process.

              Logger is the function used for audit trail logging.

              In the case when the pdu type is report, MsgData is either ok or {error, ReqId, Reason}.

       generate_msg(Vsn, NoteStore, Pdu, MsgData, Logger) -> {ok, Packet} | {discarded, Reason}

              Types:

                 Vsn = 'version-1' | 'version-2' | 'version-3'
                 NoteStore = pid()
                 Pdu = #pdu
                 MsgData = term()
                 Logger = function()
                 Packet = binary()
                 Reason = term()

              Generates a possibly encrypted packet to be sent to the network.

              NoteStore is the pid() of the note-store process.

              MsgData is the message specific data used in the SNMP message. In SNMPv1 and SNMPv2c, this message
              data is the community string. In SNMPv3, it is the context information.

              Logger is the function used for audit trail logging.

       generate_response_msg(Vsn, Pdu, MsgData, Logger) -> {ok, Packet} | {discarded, Reason}

              Types:

                 Vsn = 'version-1' | 'version-2' | 'version-3'
                 Pdu = #pdu
                 MsgData = term()
                 Logger = function()
                 Packet = binary()
                 Reason = term()

              Generates a possibly encrypted response packet to be sent to the network.

              MsgData is the message specific data used in the SNMP message. This value  is  received  from  the
              process_msg function.

Ericsson AB                                         snmp 4.25                                    snmpm_mpd(3erl)