ACE/ASNMP/asnmp/wpdu.h

   1 /* -*-C++-*- */
   2 #ifndef WPDU_H_
   3 #define WPDU_H_
   4 //=============================================================================
   5 /**
   6  *  @file    wpdu.h
   7  *
   8  *  Adapter class. Converts a Pdu and GenTarget into a format
   9  *  that can be stuffed out a I/O port
  10  *
  11  *  @author Michael R. MacFaden re-worked api
  12  *  @author use ACE APIPeter E Mellquist wrote original class snmpmsg
  13  */
  14 //=============================================================================
  15
  16
  17 #include "ace/config-all.h"
  18
  19 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  20 # pragma once
  21 #endif /* ACE_LACKS_PRAGMA_ONCE */
  22
  23 #include "asnmp/asn1.h"
  24 #include "asnmp/pdu.h"
  25 #include "asnmp/target.h"
  26
  27 struct snmp_pdu;
  28 /**
  29  * @class wpdu
  30  *
  31  * @brief Implement an Adapter pattern between CMU SNMP and HP SNMP++
  32  *
  33  * this is an adapter class, it peforms the following transformations
  34  * PDU / Target -> iovec buffer
  35  * iovec buffer -> PDU / Target
  36  */
  37 class ASNMP_Export wpdu
  38 {
  39 public:
  40   /// construct CMU data from HP SNMP++ objects
  41   /// construct HP SNMP++ objects from raw buffer via CMU SNMP datatypes
  42   wpdu(const Pdu& pdu, const UdpTarget& target);
  43   wpdu(const iovec& buffer);
  44   wpdu(); // same as using iovec?
  45
  46   ~wpdu();
  47
  48   /// constructor completed ok? rc = 1 else 0
  49   int valid() const;
  50
  51   /// return raw data stream via CMU code
  52   const iovec& get_buffer() const;
  53
  54   /// return HP SNMP++ pdu
  55   int get_pdu(Pdu& pdu, snmp_version& version);
  56
  57   /// return community strptr
  58   const unsigned char *get_community() const;
  59
  60 private:
  61   int convert_vb_to_smival( Vb &tempvb, SmiVALUE *smival );
  62   int load_vbs(snmp_pdu *raw_pdu, const Pdu& pdu);
  63   int restore_vbs(Pdu& pdu, const snmp_pdu *raw_pdu) const;
  64   void free_smival_descriptor( SmiVALUE *smival );
  65   static void copy_iovec(iovec& dest, const iovec& src);
  66   int set_trap_info(snmp_pdu *raw_pdu, const Pdu& pdu) const;
  67
  68   /// raw format
  69   iovec iovec_;
  70
  71   /// object construction state
  72   int valid_flag_;
  73
  74   /// snmp version
  75   snmp_version version_;
  76
  77   unsigned char community_name[MAX_COMM_STR_LEN];
  78   unsigned long comm_len; // = MAX_COMM_STR_LEN;
  79 };
  80
  81 #endif // WPDU_H_