mirror of
https://github.com/RetroShare/RetroShare.git
synced 2024-10-01 02:35:48 -04:00
Corrected two harmful bugs in tunnel connexion code:
- added a destructor to RsTunnelDataItem, to remove a memory leak on all data packets. - apparently the code would allow data items of zero size, hence calling malloc(0), which has undetermined behavior. git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3191 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler
parent
13671d03ea
commit
5045e720b2
@ -82,6 +82,12 @@ RsItem *RsTunnelSerialiser::deserialise(void *data, uint32_t *size)
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}
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}
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RsTunnelDataItem::~RsTunnelDataItem()
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{
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if(encoded_data != NULL)
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free(encoded_data) ;
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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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@ -109,25 +115,27 @@ bool RsTunnelDataItem::serialize(void *data,uint32_t& pktsize)
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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_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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if(encoded_data != NULL)
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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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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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if ((offset + encoded_data_len) != tlvsize )
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{
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ok = false;
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std::cerr << "RsTunnelDataItem::serialiseTransfer() Size Error! " << std::endl;
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std::cerr << "RsTunnelDataItem::serialiseTransfer() Size Error! " << std::endl;
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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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#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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@ -215,11 +223,16 @@ RsTunnelDataItem *RsTunnelDataItem::deserialise(void *data,uint32_t pktsize)
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ok &= getRawUInt32(data, pktsize, &offset, &item->encoded_data_len) ;
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if(!ok) // return early to avoid calling malloc with 0 size
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if(!ok) // return early to avoid calling malloc with invalid size
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return NULL ;
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item->encoded_data = (void*)malloc(item->encoded_data_len) ;
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memcpy(item->encoded_data, (void*)((unsigned char*)data+offset), item->encoded_data_len);
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if(item->encoded_data_len > 0)
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{
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item->encoded_data = (void*)malloc(item->encoded_data_len) ;
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memcpy(item->encoded_data, (void*)((unsigned char*)data+offset), item->encoded_data_len);
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}
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else
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item->encoded_data = NULL ;
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if ((offset + item->encoded_data_len) != rssize)
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{
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@ -47,6 +47,8 @@ class RsTunnelItem: public RsItem
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public:
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RsTunnelItem(uint8_t tunnel_subtype) : RsItem(RS_PKT_VERSION_SERVICE,RS_SERVICE_TYPE_TUNNEL,tunnel_subtype) {}
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virtual ~RsTunnelItem() {}
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virtual bool serialize(void *data,uint32_t& size) = 0 ; // Isn't it better that items can serialize themselves ?
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virtual uint32_t serial_size() { return 0;}
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@ -56,8 +58,13 @@ class RsTunnelItem: public RsItem
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class RsTunnelDataItem: public RsTunnelItem
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{
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public:
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RsTunnelDataItem() : RsTunnelItem(RS_TUNNEL_SUBTYPE_DATA) {}
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RsTunnelDataItem(void *data,uint32_t size) ; // deserialization
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RsTunnelDataItem() : RsTunnelItem(RS_TUNNEL_SUBTYPE_DATA)
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{
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encoded_data = NULL ; // To comply with the destructor below.
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}
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virtual ~RsTunnelDataItem() ;
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static RsTunnelDataItem *deserialise(void *data,uint32_t size) ; // deserialization
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uint32_t encoded_data_len;
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void *encoded_data;
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@ -76,7 +83,9 @@ class RsTunnelHandshakeItem: public RsTunnelItem
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{
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public:
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RsTunnelHandshakeItem() : RsTunnelItem(RS_TUNNEL_SUBTYPE_HANDSHAKE) {}
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RsTunnelHandshakeItem(void *data,uint32_t size) ; // deserialization
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virtual ~RsTunnelHandshakeItem() {}
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static RsTunnelHandshakeItem *deserialise(void *data,uint32_t size) ; // deserialization
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std::string sourcePeerId ;
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std::string relayPeerId ;
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@ -44,13 +44,13 @@
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#define TUNNEL_HANDSHAKE_ACK 2
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#define TUNNEL_HANDSHAKE_REFUSE 0
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p3tunnel::p3tunnel(p3ConnectMgr *cm, pqipersongrp *perGrp)
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:p3Service(RS_SERVICE_TYPE_TUNNEL), mConnMgr(cm), mPqiPersonGrp(perGrp)
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p3tunnel::p3tunnel(p3ConnectMgr *cm, pqipersongrp *perGrp)
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:p3Service(RS_SERVICE_TYPE_TUNNEL), mConnMgr(cm), mPqiPersonGrp(perGrp)
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{
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RsStackMutex stack(mTunnelMtx); /********** STACK LOCKED MTX ******/
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ownId = mConnMgr->getOwnId();
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std::cerr << "ownId : " << mConnMgr->getOwnId() << std::endl;
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std::cerr << "ownId : " << mConnMgr->getOwnId() << std::endl;
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addSerialType(new RsTunnelSerialiser());
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return;
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@ -69,39 +69,39 @@ int p3tunnel::handleIncoming()
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RsItem *item = NULL;
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#ifdef P3TUNNEL_DEBUG
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//std::cerr << "p3tunnel::handleIncoming() called." << std::endl;
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//std::cerr << "p3tunnel::handleIncoming() called." << std::endl;
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#endif
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int nhandled = 0;
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// While messages read
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while(NULL != (item = recvItem()))
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{
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if (!mConnMgr->getTunnelConnection()) {
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//no tunnel allowed, just drop the packet
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continue;
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}
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{
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if (!mConnMgr->getTunnelConnection()) {
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//no tunnel allowed, just drop the packet
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continue;
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}
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RsTunnelDataItem *tdi = NULL;
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RsTunnelHandshakeItem *thi = NULL;
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RsTunnelHandshakeItem *thi = NULL;
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{
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#ifdef P3TUNNEL_DEBUG
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#ifdef P3TUNNEL_DEBUG
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std::ostringstream out;
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out << "p3tunnel::handleIncoming()";
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out << " Received Message!" << std::endl;
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item -> print(out);
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std::cerr << out.str();
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#endif
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item -> print(out);
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std::cerr << out.str();
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#endif
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}
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if (NULL != (tdi = dynamic_cast<RsTunnelDataItem *> (item))) {
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recvTunnelData(tdi);
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if (NULL != (tdi = dynamic_cast<RsTunnelDataItem *> (item))) {
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recvTunnelData(tdi);
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nhandled++;
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} else if (NULL != (thi = dynamic_cast<RsTunnelHandshakeItem *> (item))) {
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recvTunnelHandshake(thi);
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nhandled++;
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}
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delete item;
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} else if (NULL != (thi = dynamic_cast<RsTunnelHandshakeItem *> (item))) {
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recvTunnelHandshake(thi);
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nhandled++;
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}
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delete item;
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}
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return nhandled;
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}
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@ -110,74 +110,77 @@ int p3tunnel::handleIncoming()
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/* Output Network Msgs */
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/*************************************************************************************/
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void p3tunnel::sendTunnelData(std::string destPeerId, std::string relayPeerId, void *data, int data_length) {
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sendTunnelDataPrivate(relayPeerId, ownId,relayPeerId, destPeerId, data, data_length);
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sendTunnelDataPrivate(relayPeerId, ownId,relayPeerId, destPeerId, data, data_length);
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}
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void p3tunnel::sendTunnelDataPrivate(std::string to, std::string sourcePeerId, std::string relayPeerId, std::string destPeerId, void *data, int data_length) {
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if (!mConnMgr->getTunnelConnection()) {
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//no tunnel allowed, just drop the request
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return;
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}
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if (!mConnMgr->getTunnelConnection()) {
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//no tunnel allowed, just drop the request
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return;
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}
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RsStackMutex stack(mTunnelMtx); /********** STACK LOCKED MTX ******/
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RsStackMutex stack(mTunnelMtx); /********** STACK LOCKED MTX ******/
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// Then send message.
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{
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#ifdef P3TUNNEL_DEBUG
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std::ostringstream out;
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out << "p3tunnel::sendTunnelDataPrivate() Constructing a RsTunnelItem Message!" << std::endl;
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out << "Sending to: " << to;
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std::cerr << out.str() << std::endl;
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#endif
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#ifdef P3TUNNEL_DEBUG
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std::ostringstream out;
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out << "p3tunnel::sendTunnelDataPrivate() Constructing a RsTunnelItem Message!" << std::endl;
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out << "Sending to: " << to;
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std::cerr << out.str() << std::endl;
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#endif
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}
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// Construct a message
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RsTunnelDataItem *rdi = new RsTunnelDataItem();
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rdi->destPeerId = destPeerId;
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rdi->sourcePeerId = sourcePeerId;
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rdi->relayPeerId = relayPeerId;
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rdi->relayPeerId = relayPeerId;
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rdi->encoded_data_len = data_length;
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rdi->encoded_data = (void*)malloc(data_length);
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memcpy(rdi->encoded_data, data, data_length);
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if(data_length > 0)
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{
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rdi->encoded_data = (void*)malloc(data_length);
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memcpy(rdi->encoded_data, data, data_length);
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}
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rdi->PeerId(to);
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::sendTunnelDataPrivate() data_length : "<< data_length << std::endl;
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#endif
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/* send msg */
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::sendTunnelDataPrivate() data_length : "<< data_length << std::endl;
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#endif
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/* send msg */
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sendItem(rdi);
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}
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void p3tunnel::pingTunnelConnection(std::string relayPeerId, std::string destPeerId) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::pingTunnelConnection() sending ping with relay id : " << relayPeerId << std::endl;
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std::cerr << "ownId : " << ownId << std::endl;
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std::cerr << "destPeerId : " << destPeerId << std::endl;
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std::cerr << "p3tunnel::pingTunnelConnection() sending ping with relay id : " << relayPeerId << std::endl;
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std::cerr << "ownId : " << ownId << std::endl;
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std::cerr << "destPeerId : " << destPeerId << std::endl;
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#endif
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this->sendTunnelDataPrivate(relayPeerId, ownId, relayPeerId, destPeerId, NULL, 0);
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this->sendTunnelDataPrivate(relayPeerId, ownId, relayPeerId, destPeerId, NULL, 0);
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}
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void p3tunnel::initiateHandshake(std::string relayPeerId, std::string destPeerId) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::initiateHandshake() initiating handshake with relay id : " << relayPeerId << std::endl;
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std::cerr << "ownId : " << ownId << std::endl;
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std::cerr << "destPeerId : " << destPeerId << std::endl;
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#endif
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// Construct a message
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RsTunnelHandshakeItem *rhi = new RsTunnelHandshakeItem();
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rhi->destPeerId = destPeerId;
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rhi->sourcePeerId = ownId;
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rhi->relayPeerId = relayPeerId;
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rhi->connection_accepted = TUNNEL_HANDSHAKE_INIT;
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rhi->sslCertPEM = AuthSSL::getAuthSSL()->SaveOwnCertificateToString();
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::initiateHandshake() initiating handshake with relay id : " << relayPeerId << std::endl;
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std::cerr << "ownId : " << ownId << std::endl;
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std::cerr << "destPeerId : " << destPeerId << std::endl;
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#endif
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// Construct a message
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RsTunnelHandshakeItem *rhi = new RsTunnelHandshakeItem();
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rhi->destPeerId = destPeerId;
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rhi->sourcePeerId = ownId;
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rhi->relayPeerId = relayPeerId;
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rhi->connection_accepted = TUNNEL_HANDSHAKE_INIT;
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rhi->sslCertPEM = AuthSSL::getAuthSSL()->SaveOwnCertificateToString();
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rhi->PeerId(relayPeerId);
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rhi->PeerId(relayPeerId);
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/* send msg */
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sendItem(rhi);
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/* send msg */
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sendItem(rhi);
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}
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/*************************************************************************************/
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@ -185,164 +188,164 @@ void p3tunnel::initiateHandshake(std::string relayPeerId, std::string destPeerId
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/*************************************************************************************/
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void p3tunnel::recvTunnelHandshake(RsTunnelHandshakeItem *item)
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{
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() From: " << item->PeerId() << std::endl;
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#endif
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() From: " << item->PeerId() << std::endl;
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#endif
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RsPeerDetails pd;
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if (!AuthSSL::getAuthSSL()->LoadDetailsFromStringCert(item->sslCertPEM, pd)) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() cert is not valid. This might be a intrusion attempt." << std::endl;
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#endif
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return;
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}
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RsPeerDetails pd;
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if (!AuthSSL::getAuthSSL()->LoadDetailsFromStringCert(item->sslCertPEM, pd)) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() cert is not valid. This might be a intrusion attempt." << std::endl;
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#endif
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return;
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}
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if (item->sourcePeerId != pd.id) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() cert is not issued from the source id of the tunnel. This might be a intrusion attempt." << std::endl;
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#endif
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return;
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}
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if (item->sourcePeerId != pd.id) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() cert is not issued from the source id of the tunnel. This might be a intrusion attempt." << std::endl;
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#endif
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return;
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}
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//compare the peer id from the item sender to the ids in the item.
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if (item->PeerId() == item->sourcePeerId && ownId == item->relayPeerId) {
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if (mConnMgr->isOnline(item->destPeerId)) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() relaying packet." << std::endl;
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#endif
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//relaying the handshake
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RsTunnelHandshakeItem* forwardItem = new RsTunnelHandshakeItem();
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forwardItem->sourcePeerId = item->sourcePeerId;
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forwardItem->relayPeerId = item->relayPeerId;
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forwardItem->destPeerId = item->destPeerId;
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forwardItem->connection_accepted = item->connection_accepted;
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forwardItem->sslCertPEM = item->sslCertPEM;
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forwardItem->PeerId(item->destPeerId);
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sendItem(forwardItem);
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} else {
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//sending back refuse
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//not implemented
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() not relaying packet because destination is offline." << std::endl;
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#endif
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}
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} else if (item->PeerId() == item->relayPeerId && ownId == item->destPeerId) {
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if (item->connection_accepted == TUNNEL_HANDSHAKE_INIT || item->connection_accepted == TUNNEL_HANDSHAKE_ACK) {
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//check if we accept connection
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if (!mConnMgr->isFriend(pd.id)) {
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//send back a refuse
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// not implemented
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} else {
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if (item->connection_accepted == TUNNEL_HANDSHAKE_INIT) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() sending back acknowledgement to " << item->sourcePeerId << std::endl;
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#endif
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//send back acknowledgement
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RsTunnelHandshakeItem* ack = new RsTunnelHandshakeItem();
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ack->sourcePeerId = ownId;
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ack->relayPeerId = item->relayPeerId;
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ack->destPeerId = item->sourcePeerId;
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ack->connection_accepted = TUNNEL_HANDSHAKE_ACK;
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ack->sslCertPEM = AuthSSL::getAuthSSL()->SaveOwnCertificateToString();
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ack->PeerId(item->relayPeerId);
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sendItem(ack);
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}
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//compare the peer id from the item sender to the ids in the item.
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if (item->PeerId() == item->sourcePeerId && ownId == item->relayPeerId) {
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if (mConnMgr->isOnline(item->destPeerId)) {
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#ifdef P3TUNNEL_DEBUG
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std::cerr << "p3tunnel::recvTunnelHandshake() relaying packet." << std::endl;
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#endif
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//relaying the handshake
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RsTunnelHandshakeItem* forwardItem = new RsTunnelHandshakeItem();
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forwardItem->sourcePeerId = item->sourcePeerId;
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forwardItem->relayPeerId = item->relayPeerId;
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forwardItem->destPeerId = item->destPeerId;
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forwardItem->connection_accepted = item->connection_accepted;
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forwardItem->sslCertPEM = item->sslCertPEM;
|
||||
forwardItem->PeerId(item->destPeerId);
|
||||
sendItem(forwardItem);
|
||||
} else {
|
||||
//sending back refuse
|
||||
//not implemented
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::recvTunnelHandshake() not relaying packet because destination is offline." << std::endl;
|
||||
#endif
|
||||
}
|
||||
} else if (item->PeerId() == item->relayPeerId && ownId == item->destPeerId) {
|
||||
if (item->connection_accepted == TUNNEL_HANDSHAKE_INIT || item->connection_accepted == TUNNEL_HANDSHAKE_ACK) {
|
||||
//check if we accept connection
|
||||
if (!mConnMgr->isFriend(pd.id)) {
|
||||
//send back a refuse
|
||||
// not implemented
|
||||
} else {
|
||||
if (item->connection_accepted == TUNNEL_HANDSHAKE_INIT) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::recvTunnelHandshake() sending back acknowledgement to " << item->sourcePeerId << std::endl;
|
||||
#endif
|
||||
//send back acknowledgement
|
||||
RsTunnelHandshakeItem* ack = new RsTunnelHandshakeItem();
|
||||
ack->sourcePeerId = ownId;
|
||||
ack->relayPeerId = item->relayPeerId;
|
||||
ack->destPeerId = item->sourcePeerId;
|
||||
ack->connection_accepted = TUNNEL_HANDSHAKE_ACK;
|
||||
ack->sslCertPEM = AuthSSL::getAuthSSL()->SaveOwnCertificateToString();
|
||||
ack->PeerId(item->relayPeerId);
|
||||
sendItem(ack);
|
||||
}
|
||||
|
||||
//open the local tunnel connection
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::recvTunnelHandshake() opening localy the tunnel connection emulation." << std::endl;
|
||||
#endif
|
||||
pqiperson *pers = mPqiPersonGrp->getPeer(item->sourcePeerId);
|
||||
pqissltunnel *pqicon = (pqissltunnel *)(((pqiconnect *) pers->getKid(PQI_CONNECT_TUNNEL))->ni);
|
||||
pqicon->IncommingHanshakePacket(item->relayPeerId);
|
||||
}
|
||||
}
|
||||
}
|
||||
//open the local tunnel connection
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::recvTunnelHandshake() opening localy the tunnel connection emulation." << std::endl;
|
||||
#endif
|
||||
pqiperson *pers = mPqiPersonGrp->getPeer(item->sourcePeerId);
|
||||
pqissltunnel *pqicon = (pqissltunnel *)(((pqiconnect *) pers->getKid(PQI_CONNECT_TUNNEL))->ni);
|
||||
pqicon->IncommingHanshakePacket(item->relayPeerId);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void p3tunnel::recvTunnelData(RsTunnelDataItem *item)
|
||||
{
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::recvPeerConnectRequest() From: " << item->PeerId() << std::endl;
|
||||
#endif
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::recvPeerConnectRequest() From: " << item->PeerId() << std::endl;
|
||||
#endif
|
||||
|
||||
//compare the peer id from the item sender to the ids in the item.
|
||||
if (item->PeerId() == item->sourcePeerId && ownId == item->relayPeerId) {
|
||||
privateRecvTunnelDataRelaying(item);
|
||||
} else if (item->PeerId() == item->relayPeerId && ownId == item->destPeerId) {
|
||||
privateRecvTunnelDataDestination(item);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void p3tunnel::privateRecvTunnelDataRelaying(RsTunnelDataItem *item) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataRelaying() I am relaying, let's see if it's possible to send the packet to destination." << std::endl;
|
||||
#endif
|
||||
if (!mConnMgr->isFriend(item->sourcePeerId) || !mConnMgr->isFriend(item->destPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() not trusting relay or dest peer. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
if (mConnMgr->isOnline(item->destPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataRelaying() I am relaying, relay the packet to destination." << std::endl;
|
||||
#endif
|
||||
sendTunnelDataPrivate(item->destPeerId, item->sourcePeerId, ownId, item->destPeerId, item->encoded_data, item->encoded_data_len);
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataRelaying() I am relaying, let's see if it's possible to send the packet to destination." << std::endl;
|
||||
#endif
|
||||
if (!mConnMgr->isFriend(item->sourcePeerId) || !mConnMgr->isFriend(item->destPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() not trusting relay or dest peer. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
}
|
||||
if (mConnMgr->isOnline(item->destPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataRelaying() I am relaying, relay the packet to destination." << std::endl;
|
||||
#endif
|
||||
sendTunnelDataPrivate(item->destPeerId, item->sourcePeerId, ownId, item->destPeerId, item->encoded_data, item->encoded_data_len);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void p3tunnel::privateRecvTunnelDataDestination(RsTunnelDataItem *item) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() I am the destination Id, let's make some checks and read the packet." << std::endl;
|
||||
#endif
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() I am the destination Id, let's make some checks and read the packet." << std::endl;
|
||||
#endif
|
||||
|
||||
if (!mConnMgr->isFriend(item->sourcePeerId) || !mConnMgr->isFriend(item->relayPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() not trusting relay or source peer. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
if (!mConnMgr->isOnline(item->relayPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() relay peer is not connected, connection impossible. Aborting." << std::endl;
|
||||
#endif
|
||||
if (!mConnMgr->isFriend(item->sourcePeerId) || !mConnMgr->isFriend(item->relayPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() not trusting relay or source peer. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
pqiperson *pers = mPqiPersonGrp->getPeer(item->sourcePeerId);
|
||||
if (pers == NULL) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() tunnel connection not found. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
pqissltunnel *pqicon = (pqissltunnel *)(((pqiconnect *) pers->getKid(PQI_CONNECT_TUNNEL))->ni);
|
||||
if (pqicon == NULL || !pqicon->isactive()) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() tunnel connection not found. Aborting." << std::endl;
|
||||
#endif
|
||||
if (!mConnMgr->isOnline(item->relayPeerId)) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() relay peer is not connected, connection impossible. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
//send the packet to the net emulation layer
|
||||
if (item->encoded_data_len == 0) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() receiving a ping packet, activating connection and sending back acknowlegment." << std::endl;
|
||||
#endif
|
||||
pqiperson *pers = mPqiPersonGrp->getPeer(item->sourcePeerId);
|
||||
if (pers == NULL) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() tunnel connection not found. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
pqissltunnel *pqicon = (pqissltunnel *)(((pqiconnect *) pers->getKid(PQI_CONNECT_TUNNEL))->ni);
|
||||
if (pqicon == NULL || !pqicon->isactive()) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() tunnel connection not found. Aborting." << std::endl;
|
||||
#endif
|
||||
return;
|
||||
}
|
||||
|
||||
//send the packet to the net emulation layer
|
||||
if (item->encoded_data_len == 0) {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() receiving a ping packet, activating connection and sending back acknowlegment." << std::endl;
|
||||
#endif
|
||||
pqissltunnel *pqicon = (pqissltunnel *)(((pqiconnect *) pers->getKid(PQI_CONNECT_TUNNEL))->ni);
|
||||
pqicon->IncommingPingPacket();
|
||||
} else {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() receiving a data packet, transfer it to the pqissltunnel connection." << std::endl;
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() getRsItemSize(item->encoded_data) : " << getRsItemSize(item->encoded_data) << std::endl;
|
||||
#endif
|
||||
pqicon->IncommingPingPacket();
|
||||
} else {
|
||||
#ifdef P3TUNNEL_DEBUG
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() receiving a data packet, transfer it to the pqissltunnel connection." << std::endl;
|
||||
std::cerr << "p3tunnel::privateRecvTunnelDataDestination() getRsItemSize(item->encoded_data) : " << getRsItemSize(item->encoded_data) << std::endl;
|
||||
#endif
|
||||
pqissltunnel *pqicon = (pqissltunnel *)(((pqiconnect *) pers->getKid(PQI_CONNECT_TUNNEL))->ni);
|
||||
pqicon->addIncomingPacket(item->encoded_data, item->encoded_data_len);
|
||||
}
|
||||
return;
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user