mirror of
https://github.com/RetroShare/RetroShare.git
synced 2024-10-01 02:35:48 -04:00
2fd91a5b71
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@2430 b45a01b8-16f6-495d-af2f-9b41ad6348cc
274 lines
8.5 KiB
C++
274 lines
8.5 KiB
C++
#ifndef WINDOWS_SYS
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#include <stdexcept>
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#endif
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#include <iostream>
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#include "rstunnelitems.h"
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// -----------------------------------------------------------------------------------//
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// -------------------------------- Serialization. --------------------------------- //
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// -----------------------------------------------------------------------------------//
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//
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//
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// ---------------------------------- Packet sizes -----------------------------------//
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//
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uint32_t RsTunnelDataItem::serial_size()
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem::serial_size() called." << std::endl ;
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#endif
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uint32_t s = 0 ;
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s += 8 ; // header
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s += GetTlvStringSize(sourcePeerId) ;
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s += GetTlvStringSize(relayPeerId) ;
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s += GetTlvStringSize(destPeerId) ;
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s += 4 ; //encoded_data_len
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s += encoded_data_len;
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return s ;
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}
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uint32_t RsTunnelHandshakeItem::serial_size()
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelHandshakeItem::serial_size() called." << std::endl ;
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#endif
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uint32_t s = 0 ;
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s += 8 ; // header
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s += GetTlvStringSize(sourcePeerId) ;
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s += GetTlvStringSize(relayPeerId) ;
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s += GetTlvStringSize(destPeerId) ;
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s += GetTlvStringSize(sslCertPEM) ;
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s += 4 ; //connection_accept
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return s ;
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}
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//
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// ---------------------------------- Serialization ----------------------------------//
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//
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RsItem *RsTunnelSerialiser::deserialise(void *data, uint32_t *size)
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelSerialiser::deserialise() called." << std::endl ;
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#endif
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// look what we have...
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/* get the type */
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uint32_t rstype = getRsItemId(data);
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel: deserialising packet: " << std::endl ;
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#endif
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if ((RS_PKT_VERSION_SERVICE != getRsItemVersion(rstype)) || (RS_SERVICE_TYPE_TUNNEL != getRsItemService(rstype)))
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << " Wrong type !!" << std::endl ;
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#endif
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return NULL; /* wrong type */
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}
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#ifndef WINDOWS_SYS
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try
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{
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#endif
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switch(getRsItemSubType(rstype))
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{
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case RS_TUNNEL_SUBTYPE_DATA : return new RsTunnelDataItem(data,*size) ;
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case RS_TUNNEL_SUBTYPE_HANDSHAKE : return new RsTunnelHandshakeItem(data,*size) ;
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default:
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std::cerr << "Unknown packet type in Rstunnel!" << std::endl ;
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return NULL ;
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}
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#ifndef WINDOWS_SYS
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}
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catch(std::exception& e)
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{
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std::cerr << "Exception raised: " << e.what() << std::endl ;
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return NULL ;
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}
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#endif
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}
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bool RsTunnelDataItem::serialize(void *data,uint32_t& pktsize)
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem::serialize() called." << std::endl ;
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#endif
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uint32_t tlvsize = serial_size();
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uint32_t offset = 0;
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if (pktsize < tlvsize)
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return false; /* not enough space */
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pktsize = tlvsize;
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bool ok = true;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem::serialize() tlvsize : " << tlvsize << std::endl ;
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#endif
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ok &= setRsItemHeader(data,tlvsize,PacketId(), tlvsize);
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/* skip the header */
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offset += 8;
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/* add mandatory parts first */
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_VALUE, sourcePeerId);
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_VALUE, relayPeerId);
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_VALUE, destPeerId);
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ok &= setRawUInt32(data, tlvsize, &offset, encoded_data_len) ;
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memcpy((void*)((unsigned char*)data+offset),encoded_data,encoded_data_len) ;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem::serialise() (offset + encoded_data_len) " << (offset + encoded_data_len) << std::endl;
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std::cerr << "RsTunnelDataItem::serialise() tlvsize " << tlvsize << std::endl;
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#endif
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if ((offset + encoded_data_len) != tlvsize )
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{
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ok = false;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem::serialiseTransfer() Size Error! " << std::endl;
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#endif
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}
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem::serialize() packet size inside serialised data : " << getRsItemSize(data) << std::endl ;
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#endif
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return ok;
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}
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bool RsTunnelHandshakeItem::serialize(void *data,uint32_t& pktsize)
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelHandshakeItem::serialize() called." << std::endl ;
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#endif
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uint32_t tlvsize = serial_size();
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uint32_t offset = 0;
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if (pktsize < tlvsize)
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return false; /* not enough space */
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pktsize = tlvsize;
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bool ok = true;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelHandshakeItem::serialize() tlvsize : " << tlvsize << std::endl ;
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#endif
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ok &= setRsItemHeader(data,tlvsize,PacketId(), tlvsize);
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/* skip the header */
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offset += 8;
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/* add mandatory parts first */
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_VALUE, sourcePeerId);
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_VALUE, relayPeerId);
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_VALUE, destPeerId);
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ok &= SetTlvString(data, tlvsize, &offset, TLV_TYPE_STR_CERT_SSL, sslCertPEM);
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ok &= setRawUInt32(data, tlvsize, &offset, connection_accepted);
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if (offset != tlvsize )
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{
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ok = false;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelHandshakeItem::serialiseTransfer() Size Error! " << std::endl;
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#endif
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}
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return ok;
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}
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//deserialize in constructor
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RsTunnelDataItem::RsTunnelDataItem(void *data,uint32_t pktsize) : RsTunnelItem(RS_TUNNEL_SUBTYPE_DATA)
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem constructor called : deserializing packet." << std::endl ;
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#endif
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uint32_t offset = 8; // skip the header
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uint32_t rssize = getRsItemSize(data);
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bool ok = true ;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelDataItem constructor rssize : " << rssize << std::endl ;
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#endif
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_VALUE, sourcePeerId);
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_VALUE, relayPeerId);
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_VALUE, destPeerId);
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ok &= getRawUInt32(data, pktsize, &offset, &encoded_data_len) ;
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encoded_data = (void*)malloc(encoded_data_len) ;
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memcpy(encoded_data, (void*)((unsigned char*)data+offset), encoded_data_len);
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#ifdef WINDOWS_SYS // No Exceptions in Windows compile. (drbobs).
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#else
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if ((offset + encoded_data_len) != rssize)
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throw std::runtime_error("Size error while deserializing.") ;
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if (!ok)
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throw std::runtime_error("Unknown error while deserializing.") ;
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#endif
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}
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//deserialize in constructor
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RsTunnelHandshakeItem::RsTunnelHandshakeItem(void *data,uint32_t pktsize) : RsTunnelItem(RS_TUNNEL_SUBTYPE_HANDSHAKE)
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelHandshakeItem constructor called : deserializing packet." << std::endl ;
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#endif
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uint32_t offset = 8; // skip the header
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uint32_t rssize = getRsItemSize(data);
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bool ok = true ;
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "RsTunnelHandshakeItem constructor rssize : " << rssize << std::endl ;
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#endif
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_VALUE, sourcePeerId);
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_VALUE, relayPeerId);
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_VALUE, destPeerId);
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ok &= GetTlvString(data, pktsize, &offset, TLV_TYPE_STR_CERT_SSL, sslCertPEM);
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ok &= getRawUInt32(data, pktsize, &offset, &connection_accepted);
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#ifdef WINDOWS_SYS // No Exceptions in Windows compile. (drbobs).
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#else
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if (offset != rssize)
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throw std::runtime_error("Size error while deserializing.") ;
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if (!ok)
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throw std::runtime_error("Unknown error while deserializing.") ;
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#endif
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}
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std::ostream& RsTunnelDataItem::print(std::ostream& o, uint16_t)
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{
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o << "RsTunnelDataItem :" << std::endl ;
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o << " sourcePeerId : " << sourcePeerId << std::endl ;
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o << " relayPeerId : " << relayPeerId << std::endl ;
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o << " destPeerId : " << destPeerId << std::endl ;
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o << " encoded_data_len : " << encoded_data_len << std::endl ;
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return o ;
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}
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std::ostream& RsTunnelHandshakeItem::print(std::ostream& o, uint16_t)
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{
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o << "RsTunnelHandshakeItem :" << std::endl ;
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o << " sourcePeerId : " << sourcePeerId << std::endl ;
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o << " relayPeerId : " << relayPeerId << std::endl ;
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o << " destPeerId : " << destPeerId << std::endl ;
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o << " sslCertPEM : " << sslCertPEM << std::endl ;
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o << " connection_accepted : " << connection_accepted << std::endl ;
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return o ;
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}
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