src/ptclib/snmpserv.cxx

   1 /*
   2  * snmpserv.cxx
   3  *
   4  * SNMP Server (agent) class
   5  *
   6  * Portable Windows Library
   7  *
   8  * Copyright (c) 1993-2002 Equivalence Pty. Ltd.
   9  *
  10  * The contents of this file are subject to the Mozilla Public License
  11  * Version 1.0 (the "License"); you may not use this file except in
  12  * compliance with the License. You may obtain a copy of the License at
  13  * http://www.mozilla.org/MPL/
  14  *
  15  * Software distributed under the License is distributed on an "AS IS"
  16  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  17  * the License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * The Original Code is Portable Windows Library.
  21  *
  22  * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
  23  *
  24  * Contributor(s): ______________________________________.
  25  *
  26  * $Log$
  27  * Revision 1.4  2002/11/06 22:47:25  robertj
  28  * Fixed header comment (copyright etc)
  29  *
  30  * Revision 1.3  1998/11/30 04:52:09  robertj
  31  * New directory structure
  32  *
  33  * Revision 1.2  1998/09/23 06:22:42  robertj
  34  * Added open source copyright license.
  35  *
  36  * Revision 1.1  1996/09/14 13:02:18  robertj
  37  * Initial revision
  38  *
  39  */
  40
  41 #include <ptlib.h>
  42 #include <ptclib/psnmp.h>
  43
  44
  45 BOOL PSNMPServer::SendGetResponse (PSNMPVarBindingList &)
  46 {
  47   PAssertAlways("SendGetResponse not yet implemented");
  48   return GenErr;
  49 }
  50
  51
  52 void PSNMPServer::OnGetRequest (PSNMPVarBindingList &)
  53 {
  54 }
  55
  56
  57 void PSNMPServer::OnGetNextRequest (PSNMPVarBindingList &)
  58 {
  59 }
  60
  61
  62 void PSNMPServer::OnSetRequest (PSNMPVarBindingList &)
  63 {
  64 }
  65
  66
  67 BOOL PSNMP::DecodeTrap(const PBYTEArray & readBuffer,
  68                                        PINDEX & version,
  69                                       PString & community,
  70                                       PString & enterprise,
  71                            PIPSocket::Address & address,
  72                                        PINDEX & genericTrapType,
  73                                       PINDEX  & specificTrapType,
  74                                  PASNUnsigned & timeTicks,
  75                           PSNMPVarBindingList & varsOut)
  76 {
  77   // parse the response
  78   PASNSequence response(readBuffer);
  79   PINDEX seqLen = response.GetSize();
  80
  81   // check PDU
  82   if (seqLen != 3 ||
  83       response[0].GetType() != PASNObject::Integer ||
  84       response[1].GetType() != PASNObject::String ||
  85       response[2].GetType() != PASNObject::Choice)
  86     return FALSE;
  87
  88   // check the PDU data
  89   const PASNSequence & rPduData = response[2].GetSequence();
  90   seqLen = rPduData.GetSize();
  91   if (seqLen != 6 ||
  92       rPduData.GetChoice()  != Trap ||
  93       rPduData[0].GetType() != PASNObject::ObjectID ||
  94       rPduData[1].GetType() != PASNObject::IPAddress ||
  95       rPduData[2].GetType() != PASNObject::Integer ||
  96       rPduData[3].GetType() != PASNObject::Integer ||
  97       rPduData[4].GetType() != PASNObject::TimeTicks ||
  98       rPduData[5].GetType() != PASNObject::Sequence)
  99     return FALSE;
 100
 101   version          = response[0].GetInteger();
 102   community        = response[1].GetString();
 103   enterprise       = rPduData[0].GetString();
 104   address          = rPduData[1].GetIPAddress();
 105   genericTrapType  = rPduData[2].GetInteger();
 106   specificTrapType = rPduData[3].GetInteger();
 107   timeTicks        = rPduData[4].GetUnsigned();
 108
 109   // check the variable bindings
 110   const PASNSequence & rBindings = rPduData[5].GetSequence();
 111   PINDEX bindingCount = rBindings.GetSize();
 112
 113   // create the return list
 114   for (PINDEX i = 0; i < bindingCount; i++) {
 115     if (rBindings[i].GetType() != PASNObject::Sequence)
 116       return TRUE;
 117
 118     const PASNSequence & rVar = rBindings[i].GetSequence();
 119     if (rVar.GetSize() != 2 ||
 120         rVar[0].GetType() != PASNObject::ObjectID)
 121       return TRUE;
 122
 123     varsOut.Append(rVar[0].GetString(), (PASNObject *)rVar[1].Clone());
 124   }
 125
 126   return TRUE;
 127 }
 128
 129
 130 // End Of File ///////////////////////////////////////////////////////////////