RetroShare/plugins/VOIP/services/rsvoipitems.cc
2012-02-26 17:13:54 +00:00

447 lines
12 KiB
C++

/*
* libretroshare/src/serialiser: rsvoipitems.cc
*
* RetroShare Serialiser.
*
* Copyright 2011 by Robert Fernie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
*/
#include <stdexcept>
#include "serialiser/rsbaseserial.h"
#include "serialiser/rstlvbase.h"
#include "services/rsvoipitems.h"
/***
#define RSSERIAL_DEBUG 1
***/
#include <iostream>
/*************************************************************************/
std::ostream& RsVoipPingItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsVoipPingItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "SeqNo: " << mSeqNo << std::endl;
printIndent(out, int_Indent);
out << "PingTS: " << std::hex << mPingTS << std::dec << std::endl;
printRsItemEnd(out, "RsVoipPingItem", indent);
return out;
}
std::ostream& RsVoipPongItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsVoipPongItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "SeqNo: " << mSeqNo << std::endl;
printIndent(out, int_Indent);
out << "PingTS: " << std::hex << mPingTS << std::dec << std::endl;
printIndent(out, int_Indent);
out << "PongTS: " << std::hex << mPongTS << std::dec << std::endl;
printRsItemEnd(out, "RsVoipPongItem", indent);
return out;
}
std::ostream& RsVoipProtocolItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsVoipProtocolItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "flags: " << flags << std::endl;
printIndent(out, int_Indent);
out << "protocol: " << std::hex << protocol << std::dec << std::endl;
printRsItemEnd(out, "RsVoipProtocolItem", indent);
return out;
}
std::ostream& RsVoipDataItem::print(std::ostream &out, uint16_t indent)
{
printRsItemBase(out, "RsVoipDataItem", indent);
uint16_t int_Indent = indent + 2;
printIndent(out, int_Indent);
out << "flags: " << flags << std::endl;
printIndent(out, int_Indent);
out << "data size: " << std::hex << data_size << std::dec << std::endl;
printRsItemEnd(out, "RsVoipDataItem", indent);
return out;
}
/*************************************************************************/
uint32_t RsVoipDataItem::serial_size() const
{
uint32_t s = 8; /* header */
s += 4; /* flags */
s += 4; /* data_size */
s += data_size; /* data */
return s;
}
uint32_t RsVoipProtocolItem::serial_size() const
{
uint32_t s = 8; /* header */
s += 4; /* flags */
s += 4; /* protocol */
return s;
}
uint32_t RsVoipPingItem::serial_size() const
{
uint32_t s = 8; /* header */
s += 4; /* seqno */
s += 8; /* pingTS */
return s;
}
bool RsVoipProtocolItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef RSSERIAL_DEBUG
std::cerr << "RsVoipSerialiser::serialiseVoipDataItem() Header: " << ok << std::endl;
std::cerr << "RsVoipSerialiser::serialiseVoipDataItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, protocol);
ok &= setRawUInt32(data, tlvsize, &offset, flags);
if (offset != tlvsize)
{
ok = false;
std::cerr << "RsVoipSerialiser::serialiseVoipPingItem() Size Error! " << std::endl;
}
return ok;
}
/* serialise the data to the buffer */
bool RsVoipDataItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef RSSERIAL_DEBUG
std::cerr << "RsVoipSerialiser::serialiseVoipDataItem() Header: " << ok << std::endl;
std::cerr << "RsVoipSerialiser::serialiseVoipDataItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, flags);
ok &= setRawUInt32(data, tlvsize, &offset, data_size);
std::cerr << "data_size : " << data_size << std::endl;
memcpy(data+offset,voip_data,data_size) ;
offset += data_size ;
if (offset != tlvsize)
{
ok = false;
std::cerr << "RsVoipSerialiser::serialiseVoipPingItem() Size Error! " << std::endl;
}
return ok;
}
/* serialise the data to the buffer */
bool RsVoipPingItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef RSSERIAL_DEBUG
std::cerr << "RsVoipSerialiser::serialiseVoipPingItem() Header: " << ok << std::endl;
std::cerr << "RsVoipSerialiser::serialiseVoipPingItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, mSeqNo);
ok &= setRawUInt64(data, tlvsize, &offset, mPingTS);
if (offset != tlvsize)
{
ok = false;
std::cerr << "RsVoipSerialiser::serialiseVoipPingItem() Size Error! " << std::endl;
}
return ok;
}
RsVoipProtocolItem::RsVoipProtocolItem(void *data, uint32_t pktsize)
: RsVoipItem(RS_PKT_SUBTYPE_VOIP_PROTOCOL)
{
/* get the type and size */
uint32_t rstype = getRsItemId(data);
uint32_t rssize = getRsItemSize(data);
uint32_t offset = 0;
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_VOIP_PLUGIN != getRsItemService(rstype)) || (RS_PKT_SUBTYPE_VOIP_PING != getRsItemSubType(rstype)))
throw std::runtime_error("Wrong packet type!") ;
if (pktsize < rssize) /* check size */
throw std::runtime_error("Not enough size!") ;
bool ok = true;
/* skip the header */
offset += 8;
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &protocol);
ok &= getRawUInt32(data, rssize, &offset, &flags);
if (offset != rssize)
throw std::runtime_error("Deserialisation error!") ;
if (!ok)
throw std::runtime_error("Deserialisation error!") ;
}
RsVoipPingItem::RsVoipPingItem(void *data, uint32_t pktsize)
: RsVoipItem(RS_PKT_SUBTYPE_VOIP_PING)
{
/* get the type and size */
uint32_t rstype = getRsItemId(data);
uint32_t rssize = getRsItemSize(data);
uint32_t offset = 0;
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_VOIP_PLUGIN != getRsItemService(rstype)) || (RS_PKT_SUBTYPE_VOIP_PING != getRsItemSubType(rstype)))
throw std::runtime_error("Wrong packet type!") ;
if (pktsize < rssize) /* check size */
throw std::runtime_error("Not enough size!") ;
bool ok = true;
/* skip the header */
offset += 8;
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &mSeqNo);
ok &= getRawUInt64(data, rssize, &offset, &mPingTS);
if (offset != rssize)
throw std::runtime_error("Deserialisation error!") ;
if (!ok)
throw std::runtime_error("Deserialisation error!") ;
}
/*************************************************************************/
/*************************************************************************/
uint32_t RsVoipPongItem::serial_size() const
{
uint32_t s = 8; /* header */
s += 4; /* seqno */
s += 8; /* pingTS */
s += 8; /* pongTS */
return s;
}
/* serialise the data to the buffer */
bool RsVoipPongItem::serialise(void *data, uint32_t& pktsize)
{
uint32_t tlvsize = serial_size() ;
uint32_t offset = 0;
if (pktsize < tlvsize)
return false; /* not enough space */
pktsize = tlvsize;
bool ok = true;
ok &= setRsItemHeader(data, tlvsize, PacketId(), tlvsize);
#ifdef RSSERIAL_DEBUG
std::cerr << "RsVoipSerialiser::serialiseVoipPongItem() Header: " << ok << std::endl;
std::cerr << "RsVoipSerialiser::serialiseVoipPongItem() Size: " << tlvsize << std::endl;
#endif
/* skip the header */
offset += 8;
/* add mandatory parts first */
ok &= setRawUInt32(data, tlvsize, &offset, mSeqNo);
ok &= setRawUInt64(data, tlvsize, &offset, mPingTS);
ok &= setRawUInt64(data, tlvsize, &offset, mPongTS);
if (offset != tlvsize)
{
ok = false;
std::cerr << "RsVoipSerialiser::serialiseVoipPongItem() Size Error! " << std::endl;
}
return ok;
}
RsVoipDataItem::RsVoipDataItem(void *data, uint32_t pktsize)
: RsVoipItem(RS_PKT_SUBTYPE_VOIP_DATA)
{
/* get the type and size */
uint32_t rstype = getRsItemId(data);
uint32_t rssize = getRsItemSize(data);
uint32_t offset = 0;
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_VOIP_PLUGIN != getRsItemService(rstype)) || (RS_PKT_SUBTYPE_VOIP_DATA != getRsItemSubType(rstype)))
throw std::runtime_error("Wrong packet subtype") ;
if (pktsize < rssize) /* check size */
throw std::runtime_error("Not enough space") ;
bool ok = true;
/* skip the header */
offset += 8;
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &flags);
ok &= getRawUInt32(data, rssize, &offset, &data_size);
voip_data = malloc(data_size) ;
memcpy(voip_data,&((uint8_t*)data)[offset],data_size) ;
offset += data_size ;
if (offset != rssize)
throw std::runtime_error("Serialization error.") ;
if (!ok)
throw std::runtime_error("Serialization error.") ;
}
RsVoipPongItem::RsVoipPongItem(void *data, uint32_t pktsize)
: RsVoipItem(RS_PKT_SUBTYPE_VOIP_PONG)
{
/* get the type and size */
uint32_t rstype = getRsItemId(data);
uint32_t rssize = getRsItemSize(data);
uint32_t offset = 0;
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_VOIP_PLUGIN != getRsItemService(rstype)) || (RS_PKT_SUBTYPE_VOIP_PONG != getRsItemSubType(rstype)))
throw std::runtime_error("Wrong packet subtype") ;
if (pktsize < rssize) /* check size */
throw std::runtime_error("Not enough space") ;
bool ok = true;
/* skip the header */
offset += 8;
/* get mandatory parts first */
ok &= getRawUInt32(data, rssize, &offset, &mSeqNo);
ok &= getRawUInt64(data, rssize, &offset, &mPingTS);
ok &= getRawUInt64(data, rssize, &offset, &mPongTS);
if (offset != rssize)
throw std::runtime_error("Serialization error.") ;
if (!ok)
throw std::runtime_error("Serialization error.") ;
}
/*************************************************************************/
RsItem* RsVoipSerialiser::deserialise(void *data, uint32_t *pktsize)
{
#ifdef RSSERIAL_DEBUG
std::cerr << "RsVoipSerialiser::deserialise()" << std::endl;
#endif
/* get the type and size */
uint32_t rstype = getRsItemId(data);
if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_VOIP_PLUGIN != getRsItemService(rstype)))
return NULL ;
try
{
switch(getRsItemSubType(rstype))
{
case RS_PKT_SUBTYPE_VOIP_PING: return new RsVoipPingItem(data, *pktsize);
case RS_PKT_SUBTYPE_VOIP_PONG: return new RsVoipPongItem(data, *pktsize);
case RS_PKT_SUBTYPE_VOIP_PROTOCOL: return new RsVoipProtocolItem(data, *pktsize);
case RS_PKT_SUBTYPE_VOIP_DATA: return new RsVoipDataItem(data, *pktsize);
default:
return NULL;
}
}
catch(std::exception& e)
{
std::cerr << "RsVoipSerialiser: deserialization error: " << e.what() << std::endl;
return NULL;
}
}
/*************************************************************************/