source/diameter/helpers/ericsson/functions.cpp

   1 // ANNA - Anna is Not Nothingness Anymore                                                         //
   2 //                                                                                                //
   3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
   4 //                                                                                                //
   5 // See project site at http://redmine.teslayout.com/projects/anna-suite                           //
   6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
   7
   8
   9 // Local
  10 #include <anna/diameter/helpers/ericsson/defines.hpp>
  11 #include <anna/diameter/helpers/ericsson/functions.hpp>
  12 #include <anna/diameter/codec/Message.hpp>
  13 #include <anna/diameter/codec/functions.hpp>
  14 #include <anna/config/defines.hpp> // general types, decoding helpers (DECODE[2/3/4]BYTES_INDX_VALUETYPE), etc.
  15
  16 #include <anna/core/functions.hpp>
  17 #include <anna/core/DataBlock.hpp>
  18
  19 // STL
  20 #include <string>
  21
  22 using namespace anna;
  23 using namespace anna::diameter::codec;
  24 using namespace anna::diameter::helpers::ericsson;
  25
  26
  27 // getters
  28 std::string anna::diameter::helpers::ericsson::functions::getSCAPSubscriptionIdData(const anna::DataBlock & db, int scapSubscriptionIdType) throw(anna::RuntimeException) {
  29   if(db.getSize() < Message::HeaderLength)
  30     throw anna::RuntimeException("Not enough bytes to cover command header length", ANNA_FILE_LOCATION);
  31
  32   //anna::DataBlock avpsDB(db.getData() + Message::HeaderLength, db.getSize() - Message::HeaderLength);
  33   const char *avpsDB = db.getData() + Message::HeaderLength;
  34   int avpsLen = db.getSize() - Message::HeaderLength;
  35   std::string result = "";
  36   bool found = false;
  37   int pos = 1; // first avp
  38   const char * subscriptionIdPtr;
  39   const char * subscriptionIdDataPtr;
  40   // Decoded avp information:
  41   AvpId _id;
  42   char _flags;
  43   int _length;
  44   std::string _dataG /* grouped */, _data;
  45
  46   while(!found) {
  47     //subscriptionIdPtr = anna::diameter::codec::functions::findAVP(avpsDB, AVPID__SCAP_Subscription_Id, pos);
  48     subscriptionIdPtr = anna::diameter::codec::functions::findAVP(avpsDB, avpsLen, AVPID__SCAP_Subscription_Id, pos);
  49
  50     if(!subscriptionIdPtr) return result;
  51
  52     // Look up type:
  53     anna::diameter::codec::functions::decodeAVP(subscriptionIdPtr, _id, _flags, _length, _dataG);
  54     // Data is Fixed SCAP-Subscription-Id-Type (Enumerated derived from Integer32) and then Fixed SCAP-Subscription-Id-Data (UTF8String):
  55     // No need to find SCAP-Subscription-Id-Type, it's always the first:
  56     anna::diameter::codec::functions::decodeAVP(_dataG.c_str(), _id, _flags, _length, _data);
  57     // Enumerated
  58     int type = DECODE4BYTES_INDX_VALUETYPE(_data, 0, int);
  59     found = (type == scapSubscriptionIdType);
  60     pos++;
  61   }
  62
  63   // No need to find SCAP-Subscription-Id-Data within _dataG, it's always the second, and the first takes always 4 words (has vendorID):
  64   subscriptionIdDataPtr = _dataG.c_str() + 16;
  65   anna::diameter::codec::functions::decodeAVP(subscriptionIdDataPtr, _id, _flags, _length, result);
  66   return result;
  67 }
  68
  69