packetbb.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/* vim: set ts=2 sw=2 sta expandtab ai si cin: */
/* 
 * Copyright (c) 2009 Drexel University
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * Author: Tom Wambold <tom5760@gmail.com>
 */
/* These classes implement RFC 5444 - The Generalized Mobile Ad Hoc Network
 * (MANET) Packet/PbbMessage Format
 * See: http://tools.ietf.org/html/rfc5444 for details */

#ifndef PACKETBB_H
#define PACKETBB_H

#include <list>

#include "ns3/ptr.h"
#include "ns3/address.h"
#include "ns3/header.h"
#include "ns3/buffer.h"
#include "ns3/simple-ref-count.h"

namespace ns3 {

/* Forward declare objects */
class PbbMessage;
class PbbAddressBlock;
class PbbTlv;
class PbbAddressTlv;

enum PbbAddressLength {
  IPV4 = 3,
  IPV6 = 15,
};

class PbbTlvBlock
{
public:
  typedef std::list< Ptr<PbbTlv> >::iterator Iterator;              
  typedef std::list< Ptr<PbbTlv> >::const_iterator ConstIterator;   

  PbbTlvBlock (void);
  ~PbbTlvBlock (void);

  Iterator Begin (void);

  ConstIterator Begin (void) const;

  Iterator End (void);

  ConstIterator End (void) const;

  int Size (void) const;

  bool Empty (void) const;

  Ptr<PbbTlv> Front (void) const;

  Ptr<PbbTlv> Back (void) const;

  void PushFront (Ptr<PbbTlv> tlv);

  void PopFront (void);

  void PushBack (Ptr<PbbTlv> tlv);

  void PopBack (void);

  Iterator Insert (Iterator position, const Ptr<PbbTlv> tlv);

  Iterator Erase (Iterator position);

  Iterator Erase (Iterator first, Iterator last);

  void Clear (void);

  uint32_t GetSerializedSize (void) const;

  void Serialize (Buffer::Iterator &start) const;

  void Deserialize (Buffer::Iterator &start);

  void Print (std::ostream &os) const;

  void Print (std::ostream &os, int level) const;

  bool operator== (const PbbTlvBlock &other) const;
  bool operator!= (const PbbTlvBlock &other) const;

private:
  std::list< Ptr<PbbTlv> > m_tlvList;
};

class PbbAddressTlvBlock
{
public:
  typedef std::list< Ptr<PbbAddressTlv> >::iterator Iterator;               
  typedef std::list< Ptr<PbbAddressTlv> >::const_iterator ConstIterator;    

  PbbAddressTlvBlock (void);
  ~PbbAddressTlvBlock (void);

  Iterator Begin (void);

  ConstIterator Begin (void) const;

  Iterator End (void);

  ConstIterator End (void) const;

  int Size (void) const;

  bool Empty (void) const;

  Ptr<PbbAddressTlv> Front (void) const;

  Ptr<PbbAddressTlv> Back (void) const;

  void PushFront (Ptr<PbbAddressTlv> tlv);

  void PopFront (void);

  void PushBack (Ptr<PbbAddressTlv> tlv);

  void PopBack (void);

  Iterator Insert (Iterator position, const Ptr<PbbAddressTlv> tlv);

  Iterator Erase (Iterator position);

  Iterator Erase (Iterator first, Iterator last);

  void Clear (void);

  uint32_t GetSerializedSize (void) const;

  void Serialize (Buffer::Iterator &start) const;

  void Deserialize (Buffer::Iterator &start);

  void Print (std::ostream &os) const;

  void Print (std::ostream &os, int level) const;

  bool operator== (const PbbAddressTlvBlock &other) const;

  bool operator!= (const PbbAddressTlvBlock &other) const;

private:
  std::list< Ptr<PbbAddressTlv> > m_tlvList;
};

class PbbPacket : public SimpleRefCount<PbbPacket,Header>
{
public:
  typedef std::list< Ptr<PbbTlv> >::iterator TlvIterator;                       
  typedef std::list< Ptr<PbbTlv> >::const_iterator ConstTlvIterator;            
  typedef std::list< Ptr<PbbMessage> >::iterator MessageIterator;               
  typedef std::list< Ptr<PbbMessage> >::const_iterator ConstMessageIterator;    

  PbbPacket (void);
  ~PbbPacket (void);

  uint8_t GetVersion (void) const;

  void SetSequenceNumber (uint16_t number);

  uint16_t GetSequenceNumber (void) const;

  bool HasSequenceNumber (void) const;

  /* Manipulating Packet TLVs */

  TlvIterator TlvBegin (void);

  ConstTlvIterator TlvBegin (void) const;

  TlvIterator TlvEnd (void);

  ConstTlvIterator TlvEnd (void) const;

  int TlvSize (void) const;

  bool TlvEmpty (void) const;

  Ptr<PbbTlv> TlvFront (void);

  const Ptr<PbbTlv> TlvFront (void) const;

  Ptr<PbbTlv> TlvBack (void);

  const Ptr<PbbTlv> TlvBack (void) const;

  void TlvPushFront (Ptr<PbbTlv> tlv);

  void TlvPopFront (void);

  void TlvPushBack (Ptr<PbbTlv> tlv);

  void TlvPopBack (void);

  TlvIterator Erase (TlvIterator position);

  TlvIterator Erase (TlvIterator first, TlvIterator last);

  void TlvClear (void);

  /* Manipulating Packet Messages */

  MessageIterator MessageBegin (void);

  ConstMessageIterator MessageBegin (void) const;

  MessageIterator MessageEnd (void);

  ConstMessageIterator MessageEnd (void) const;

  int MessageSize (void) const;

  bool MessageEmpty (void) const;

  Ptr<PbbMessage> MessageFront (void);

  const Ptr<PbbMessage> MessageFront (void) const;

  Ptr<PbbMessage> MessageBack (void);

  const Ptr<PbbMessage> MessageBack (void) const;

  void MessagePushFront (Ptr<PbbMessage> message);

  void MessagePopFront (void);

  void MessagePushBack (Ptr<PbbMessage> message);

  void MessagePopBack (void);

  MessageIterator Erase (MessageIterator position);

  MessageIterator Erase (MessageIterator first, MessageIterator last);

  void MessageClear (void);

  /* Methods implemented by all headers */
  static TypeId GetTypeId (void);
  virtual TypeId GetInstanceTypeId (void) const;

  virtual uint32_t GetSerializedSize (void) const;

  virtual void Serialize (Buffer::Iterator start) const;

  virtual uint32_t Deserialize (Buffer::Iterator start);

  virtual void Print (std::ostream &os) const;

  bool operator== (const PbbPacket &other) const;
  
  bool operator!= (const PbbPacket &other) const;

protected:

private:
  PbbTlvBlock m_tlvList;
  std::list< Ptr<PbbMessage> > m_messageList;

  uint8_t m_version;

  bool m_hasseqnum;
  uint16_t m_seqnum;
};

class PbbMessage : public SimpleRefCount<PbbMessage>
{
public:
  typedef std::list< Ptr<PbbTlv> >::iterator TlvIterator;                                 
  typedef std::list< Ptr<PbbTlv> >::const_iterator ConstTlvIterator;                      
  typedef std::list< Ptr<PbbAddressBlock> >::iterator AddressBlockIterator;               
  typedef std::list< Ptr<PbbAddressBlock> >::const_iterator ConstAddressBlockIterator;    

  PbbMessage ();
  virtual ~PbbMessage ();

  void SetType (uint8_t type);

  uint8_t GetType (void) const;

  void SetOriginatorAddress (Address address);

  Address GetOriginatorAddress (void) const;

  bool HasOriginatorAddress (void) const;

  void SetHopLimit (uint8_t hoplimit);

  uint8_t GetHopLimit (void) const;

  bool HasHopLimit (void) const;

  void SetHopCount (uint8_t hopcount);

  uint8_t GetHopCount (void) const;

  bool HasHopCount (void) const;

  void SetSequenceNumber (uint16_t seqnum);

  uint16_t GetSequenceNumber (void) const;

  bool HasSequenceNumber (void) const;

  /* Manipulating PbbMessage TLVs */

  TlvIterator TlvBegin ();

  ConstTlvIterator TlvBegin () const;

  TlvIterator TlvEnd ();

  ConstTlvIterator TlvEnd () const;

  int TlvSize (void) const;

  bool TlvEmpty (void) const;

  Ptr<PbbTlv> TlvFront (void);

  const Ptr<PbbTlv> TlvFront (void) const;

  Ptr<PbbTlv> TlvBack (void);

  const Ptr<PbbTlv> TlvBack (void) const;

  void TlvPushFront (Ptr<PbbTlv> tlv);

  void TlvPopFront (void);

  void TlvPushBack (Ptr<PbbTlv> tlv);

  void TlvPopBack (void);

  TlvIterator TlvErase (TlvIterator position);

  TlvIterator TlvErase (TlvIterator first, TlvIterator last);

  void TlvClear (void);

  /* Manipulating Address Block and Address TLV pairs */

  AddressBlockIterator AddressBlockBegin ();

  ConstAddressBlockIterator AddressBlockBegin () const;

  AddressBlockIterator AddressBlockEnd ();

  ConstAddressBlockIterator AddressBlockEnd () const;

  int AddressBlockSize (void) const;

  bool AddressBlockEmpty (void) const;

  Ptr<PbbAddressBlock> AddressBlockFront (void);

  const Ptr<PbbAddressBlock> AddressBlockFront (void) const;

  Ptr<PbbAddressBlock> AddressBlockBack (void);

  const Ptr<PbbAddressBlock> AddressBlockBack (void) const;

  void AddressBlockPushFront (Ptr<PbbAddressBlock> block);

  void AddressBlockPopFront (void);

  void AddressBlockPushBack (Ptr<PbbAddressBlock> block);

  void AddressBlockPopBack (void);

  AddressBlockIterator AddressBlockErase (AddressBlockIterator position);

  AddressBlockIterator AddressBlockErase (AddressBlockIterator first,
                                          AddressBlockIterator last);

  void AddressBlockClear (void);

  static Ptr<PbbMessage> DeserializeMessage (Buffer::Iterator &start);

  uint32_t GetSerializedSize (void) const;

  void Serialize (Buffer::Iterator &start) const;

  void Deserialize (Buffer::Iterator &start);

  void Print (std::ostream &os) const;

  void Print (std::ostream &os, int level) const;

  bool operator== (const PbbMessage &other) const;
  bool operator!= (const PbbMessage &other) const;

protected:  
  virtual PbbAddressLength GetAddressLength (void) const = 0;

  virtual void SerializeOriginatorAddress (Buffer::Iterator &start) const = 0;
  virtual Address DeserializeOriginatorAddress (Buffer::Iterator &start) const = 0;
  virtual void PrintOriginatorAddress (std::ostream &os) const = 0;

  virtual Ptr<PbbAddressBlock> AddressBlockDeserialize (Buffer::Iterator &start) const = 0;

private:
  PbbTlvBlock m_tlvList;
  std::list< Ptr<PbbAddressBlock> > m_addressBlockList;

  uint8_t m_type;
  PbbAddressLength m_addrSize;

  bool m_hasOriginatorAddress;
  Address m_originatorAddress;

  bool m_hasHopLimit;
  uint8_t m_hopLimit;

  bool m_hasHopCount;
  uint8_t m_hopCount;

  bool m_hasSequenceNumber;
  uint16_t m_sequenceNumber;
};

class PbbMessageIpv4 : public PbbMessage {
public:
  PbbMessageIpv4 ();
  virtual ~PbbMessageIpv4 ();

protected:
  virtual PbbAddressLength GetAddressLength (void) const;

  virtual void SerializeOriginatorAddress (Buffer::Iterator &start) const;
  virtual Address DeserializeOriginatorAddress (Buffer::Iterator &start) const;
  virtual void PrintOriginatorAddress (std::ostream &os) const;

  virtual Ptr<PbbAddressBlock> AddressBlockDeserialize (Buffer::Iterator &start) const;
};

class PbbMessageIpv6 : public PbbMessage {
public:
  PbbMessageIpv6 ();
  virtual ~PbbMessageIpv6 ();

protected:
  virtual PbbAddressLength GetAddressLength (void) const;

  virtual void SerializeOriginatorAddress (Buffer::Iterator &start) const;
  virtual Address DeserializeOriginatorAddress (Buffer::Iterator &start) const;
  virtual void PrintOriginatorAddress (std::ostream &os) const;

  virtual Ptr<PbbAddressBlock> AddressBlockDeserialize (Buffer::Iterator &start) const;
};

class PbbAddressBlock : public SimpleRefCount<PbbAddressBlock>
{
public:
  typedef std::list< Address >::iterator AddressIterator;             
  typedef std::list< Address >::const_iterator ConstAddressIterator;  

  typedef std::list<uint8_t>::iterator PrefixIterator;                
  typedef std::list<uint8_t>::const_iterator ConstPrefixIterator;     

  typedef PbbAddressTlvBlock::Iterator TlvIterator;                   
  typedef PbbAddressTlvBlock::ConstIterator ConstTlvIterator;         

  PbbAddressBlock ();
  virtual ~PbbAddressBlock ();

  /* Manipulating the address block */

  AddressIterator AddressBegin (void);

  ConstAddressIterator AddressBegin (void) const;

  AddressIterator AddressEnd (void);

  ConstAddressIterator AddressEnd (void) const;

  int AddressSize (void) const;

  bool AddressEmpty (void) const;

  Address AddressFront (void) const;

  Address AddressBack (void) const;

  void AddressPushFront (Address address);

  void AddressPopFront (void);

  void AddressPushBack (Address address);

  void AddressPopBack (void);

  AddressIterator AddressInsert (AddressIterator position,
                                 const Address value);

  AddressIterator AddressErase (AddressIterator position);

  AddressIterator AddressErase (AddressIterator first, AddressIterator last);

  void AddressClear (void);

  /* Prefix methods */

  PrefixIterator PrefixBegin (void);

  ConstPrefixIterator PrefixBegin (void) const;

  PrefixIterator PrefixEnd (void);

  ConstPrefixIterator PrefixEnd (void) const;

  int PrefixSize (void) const;

  bool PrefixEmpty (void) const;

  uint8_t PrefixFront (void) const;

  uint8_t PrefixBack (void) const;

  void PrefixPushFront (uint8_t prefix);

  void PrefixPopFront (void);

  void PrefixPushBack (uint8_t prefix);

  void PrefixPopBack (void);

  PrefixIterator PrefixInsert (PrefixIterator position, const uint8_t value);

  PrefixIterator PrefixErase (PrefixIterator position);

  PrefixIterator PrefixErase (PrefixIterator first, PrefixIterator last);

  void PrefixClear (void);

  /* Manipulating the TLV block */

  TlvIterator TlvBegin (void);

  ConstTlvIterator TlvBegin (void) const;

  TlvIterator TlvEnd (void);

  ConstTlvIterator TlvEnd (void) const;

  int TlvSize (void) const;

  bool TlvEmpty (void) const;

  Ptr<PbbAddressTlv> TlvFront (void);

  const Ptr<PbbAddressTlv> TlvFront (void) const;

  Ptr<PbbAddressTlv> TlvBack (void);

  const Ptr<PbbAddressTlv> TlvBack (void) const;

  void TlvPushFront (Ptr<PbbAddressTlv> address);

  void TlvPopFront (void);

  void TlvPushBack (Ptr<PbbAddressTlv> address);

  void TlvPopBack (void);

  TlvIterator TlvInsert (TlvIterator position, const Ptr<PbbTlv> value);

  TlvIterator TlvErase (TlvIterator position);

  TlvIterator TlvErase (TlvIterator first, TlvIterator last);

  void TlvClear (void);

  uint32_t GetSerializedSize (void) const;

  void Serialize (Buffer::Iterator &start) const;

  void Deserialize (Buffer::Iterator &start);

  void Print (std::ostream &os) const;

  void Print (std::ostream &os, int level) const;

  bool operator== (const PbbAddressBlock &other) const;
  
  bool operator!= (const PbbAddressBlock &other) const;

protected:
  virtual uint8_t GetAddressLength (void) const = 0;
  virtual void SerializeAddress (uint8_t *buffer, ConstAddressIterator iter) const = 0;
  virtual Address DeserializeAddress (uint8_t *buffer) const = 0;
  virtual void PrintAddress (std::ostream &os, ConstAddressIterator iter) const = 0;

private:
  uint8_t GetPrefixFlags (void) const;
  void GetHeadTail (uint8_t *head, uint8_t &headlen,
                    uint8_t *tail, uint8_t &taillen) const;
  bool HasZeroTail (const uint8_t *tail, uint8_t taillen) const;

  std::list<Address> m_addressList;
  std::list<uint8_t> m_prefixList;
  PbbAddressTlvBlock m_addressTlvList;
};

class PbbAddressBlockIpv4 : public PbbAddressBlock
{
public:
  PbbAddressBlockIpv4 ();
  virtual ~PbbAddressBlockIpv4 ();

protected:
  virtual uint8_t GetAddressLength (void) const;
  virtual void SerializeAddress (uint8_t *buffer, ConstAddressIterator iter) const;
  virtual Address DeserializeAddress (uint8_t *buffer) const;
  virtual void PrintAddress (std::ostream &os, ConstAddressIterator iter) const;
};

class PbbAddressBlockIpv6 : public PbbAddressBlock
{
public:
  PbbAddressBlockIpv6 ();
  virtual ~PbbAddressBlockIpv6 ();

protected:
  virtual uint8_t GetAddressLength (void) const;
  virtual void SerializeAddress (uint8_t *buffer, ConstAddressIterator iter) const;
  virtual Address DeserializeAddress (uint8_t *buffer) const;
  virtual void PrintAddress (std::ostream &os, ConstAddressIterator iter) const;
};

class PbbTlv : public SimpleRefCount<PbbTlv>
{
public:
  PbbTlv (void);
  virtual ~PbbTlv (void);

  void SetType (uint8_t type);

  uint8_t GetType (void) const;

  void SetTypeExt (uint8_t type);

  uint8_t GetTypeExt (void) const;

  bool HasTypeExt (void) const;

  void SetValue (Buffer start);

  void SetValue (const uint8_t * buffer, uint32_t size);

  Buffer GetValue (void) const;

  bool HasValue (void) const;

  uint32_t GetSerializedSize (void) const;

  void Serialize (Buffer::Iterator &start) const;

  void Deserialize (Buffer::Iterator &start);

  void Print (std::ostream &os) const;

  void Print (std::ostream &os, int level) const;

  bool operator== (const PbbTlv &other) const;

  bool operator!= (const PbbTlv &other) const;

protected:
  void SetIndexStart (uint8_t index);
  uint8_t GetIndexStart (void) const;
  bool HasIndexStart (void) const;

  void SetIndexStop (uint8_t index);
  uint8_t GetIndexStop (void) const;
  bool HasIndexStop (void) const;

  void SetMultivalue (bool isMultivalue);
  bool IsMultivalue (void) const;

private:
  uint8_t m_type;

  bool m_hasTypeExt;
  uint8_t m_typeExt;

  bool m_hasIndexStart;
  uint8_t m_indexStart;

  bool m_hasIndexStop;
  uint8_t m_indexStop;

  bool m_isMultivalue;
  bool m_hasValue;
  Buffer m_value;
};

class PbbAddressTlv : public PbbTlv
{
public:
  void SetIndexStart (uint8_t index);

  uint8_t GetIndexStart (void) const;

  bool HasIndexStart (void) const;

  void SetIndexStop (uint8_t index);

  uint8_t GetIndexStop (void) const;

  bool HasIndexStop (void) const;

  void SetMultivalue (bool isMultivalue);

  bool IsMultivalue (void) const;
};

} /* namespace ns3 */

#endif /* PACKETBB_H */