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added proof of work algorithms to GRouter key items

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@6984 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2014-01-03 22:41:20 +00:00
parent 469da4914f
commit 91291a9920
4 changed files with 145 additions and 11 deletions
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45
libretroshare/src/grouter/grouteritems.h
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@ -26,6 +26,7 @@
#pragma once
#include "serialiser/rsserial.h"
#include "util/rsid.h"
#include "rsgrouter.h"
#include "p3grouter.h"
@ -69,11 +70,44 @@ class RsGRouterItem: public RsItem
bool serialise_header(void *data, uint32_t& pktsize, uint32_t& tlvsize, uint32_t& offset) const;
};
/***********************************************************************************/
/* Helper base classes */
/***********************************************************************************/
class RsGRouterNonCopyableObject
{
public:
RsGRouterNonCopyableObject() {}
private:
RsGRouterNonCopyableObject(const RsGRouterNonCopyableObject&) {}
RsGRouterNonCopyableObject operator=(const RsGRouterNonCopyableObject&) { return *this ;}
};
class RsGRouterProofOfWorkObject
{
public:
RsGRouterProofOfWorkObject() {}
virtual bool serialise(void *data,uint32_t& size) const =0;
virtual uint32_t serial_size() const =0;
virtual bool checkProofOfWork() ; // checks that the serialized object hashes down to a hash beginning with LEADING_BYTES_SIZE zeroes
virtual bool updateProofOfWork() ; // computes the pow_bytes so that the hash starts with LEADING_BYTES_SIZE zeroes.
static bool checkProofOfWork(unsigned char *mem,uint32_t size) ;
static const int POW_PAYLOAD_SIZE = 8 ;
static const int PROOF_OF_WORK_REQUESTED_BYTES = 4 ;
unsigned char pow_bytes[POW_PAYLOAD_SIZE] ; // 8 bytes to put at the beginning of the serialized packet, so that
// the hash starts with a fixed number of zeroes.
};
/***********************************************************************************/
/* Specific packets */
/***********************************************************************************/
class RsGRouterPublishKeyItem: public RsGRouterItem
class RsGRouterPublishKeyItem: public RsGRouterItem, public RsGRouterProofOfWorkObject
{
public:
RsGRouterPublishKeyItem() : RsGRouterItem(RS_PKT_SUBTYPE_GROUTER_PUBLISH_KEY) { setPriorityLevel(QOS_PRIORITY_RS_GROUTER_PUBLISH_KEY) ; }
@ -91,15 +125,8 @@ class RsGRouterPublishKeyItem: public RsGRouterItem
uint32_t service_id ;
float randomized_distance ;
std::string description_string ;
};
PGPFingerprintType fingerprint ;
class RsGRouterNonCopyableObject
{
public:
RsGRouterNonCopyableObject() {}
private:
RsGRouterNonCopyableObject(const RsGRouterNonCopyableObject&) {}
RsGRouterNonCopyableObject operator=(const RsGRouterNonCopyableObject&) { return *this ;}
};
class RsGRouterGenericDataItem: public RsGRouterItem, public RsGRouterNonCopyableObject