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security safeguards,

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limited addr messages
-- version 0.3.2
This commit is contained in:
Gavin Andresen 2010-07-19 01:12:24 +00:00
parent 8e79c64750
commit 4110f33cde
3 changed files with 20 additions and 7 deletions
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19
main.cpp
View File

@ -1341,6 +1341,14 @@ bool CBlock::AcceptBlock()
if (nBits != GetNextWorkRequired(pindexPrev))
return error("AcceptBlock() : incorrect proof of work");
// Check that the block chain matches the known block chain up to a checkpoint
if (pindexPrev->nHeight+1 == 11111 && hash != uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
return error("AcceptBlock() : rejected by checkpoint lockin at 11111");
if (pindexPrev->nHeight+1 == 33333 && hash != uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
return error("AcceptBlock() : rejected by checkpoint lockin at 33333");
if (pindexPrev->nHeight+1 == 68555 && hash != uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a"))
return error("AcceptBlock() : rejected by checkpoint lockin at 68555");
// Write block to history file
if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))
return error("AcceptBlock() : out of disk space");
@ -1933,6 +1941,8 @@ bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
vRecv >> vAddr;
if (pfrom->nVersion < 200) // don't want addresses from 0.1.5
return true;
if (pfrom->nVersion < 209 && mapAddresses.size() > 1000) // don't want addr from 0.2.0 unless seeding
return true;
if (vAddr.size() > 1000)
return error("message addr size() = %d", vAddr.size());
@ -1941,6 +1951,9 @@ bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
{
if (fShutdown)
return true;
// ignore IPv6 for now, since it isn't implemented anyway
if (!addr.IsIPv4())
continue;
addr.nTime = GetAdjustedTime() - 2 * 60 * 60;
if (pfrom->fGetAddr || vAddr.size() > 10)
addr.nTime -= 5 * 24 * 60 * 60;
@ -1952,15 +1965,15 @@ bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
CRITICAL_BLOCK(cs_vNodes)
{
// Use deterministic randomness to send to
// the same places for an hour at a time
// the same places for 12 hours at a time
static uint256 hashSalt;
if (hashSalt == 0)
RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
uint256 hashRand = addr.ip ^ (GetTime()/3600) ^ hashSalt;
uint256 hashRand = addr.ip ^ ((GetTime()+addr.ip)/(12*60*60)) ^ hashSalt;
multimap<uint256, CNode*> mapMix;
foreach(CNode* pnode, vNodes)
mapMix.insert(make_pair(hashRand = Hash(BEGIN(hashRand), END(hashRand)), pnode));
int nRelayNodes = 10; // reduce this to 5 when the network is large
int nRelayNodes = 4;
for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)
((*mi).second)->PushAddress(addr);
}

2
serialize.h
View File

@ -19,7 +19,7 @@ class CScript;
class CDataStream;
class CAutoFile;
static const int VERSION = 301;
static const int VERSION = 302;
static const char* pszSubVer = "";

6
setup.nsi
View File

@ -7,7 +7,7 @@ RequestExecutionLevel highest
# General Symbol Definitions
!define REGKEY "SOFTWARE\$(^Name)"
!define VERSION 0.3.1
!define VERSION 0.3.2
!define COMPANY "Bitcoin project"
!define URL http://www.bitcoin.org/
@ -42,12 +42,12 @@ Var StartMenuGroup
!insertmacro MUI_LANGUAGE English
# Installer attributes
OutFile bitcoin-0.3.1-win32-setup.exe
OutFile bitcoin-0.3.2-win32-setup.exe
InstallDir $PROGRAMFILES\Bitcoin
CRCCheck on
XPStyle on
ShowInstDetails show
VIProductVersion 0.3.1.0
VIProductVersion 0.3.2.0
VIAddVersionKey ProductName Bitcoin
VIAddVersionKey ProductVersion "${VERSION}"
VIAddVersionKey CompanyName "${COMPANY}"