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Checkpoints: The hash of the genesis block it's the genesis checkpoint and chain id

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This commit is contained in:
Jorge Timón 2015-07-01 19:02:51 +02:00
parent 28909eb259
commit 9fee417d75
3 changed files with 32 additions and 12 deletions
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18
src/chainparams.cpp
View file

@ -17,6 +17,13 @@ using namespace std;
#include "chainparamsseeds.h"
const std::map<std::string, uint256> CChainParams::supportedChains =
boost::assign::map_list_of
( "main", uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"))
( "test", uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"))
( "regtest", uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
;
static CBlock CreateGenesisBlock(const char* pszTimestamp, CScript genesisOutputScript, uint32_t nTime=1231006505, uint32_t nNonce=2083236893, uint32_t nBits=0x1d00ffff, int32_t nVersion=1, const CAmount& genesisReward=50 * COIN)
{
CMutableTransaction txNew;
@ -95,8 +102,7 @@ public:
genesis = CreateGenesisBlock();
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
assert(consensus.hashGenesisBlock == supportedChains.find(strNetworkID)->second);
vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
@ -122,6 +128,7 @@ public:
checkpointData = (Checkpoints::CCheckpointData) {
boost::assign::map_list_of
( 0, consensus.hashGenesisBlock)
( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
@ -169,7 +176,7 @@ public:
genesis = CreateGenesisBlock(1296688602, 414098458);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
assert(consensus.hashGenesisBlock == supportedChains.find(strNetworkID)->second);
vFixedSeeds.clear();
vSeeds.clear();
@ -195,6 +202,7 @@ public:
checkpointData = (Checkpoints::CCheckpointData) {
boost::assign::map_list_of
( 0, consensus.hashGenesisBlock)
( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")),
1337966069,
1488,
@ -226,8 +234,8 @@ public:
nMinerThreads = 1;
genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == supportedChains.find(strNetworkID)->second);
nDefaultPort = 18444;
assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
nPruneAfterHeight = 1000;
vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
@ -242,7 +250,7 @@ public:
checkpointData = (Checkpoints::CCheckpointData){
boost::assign::map_list_of
( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
( 0, consensus.hashGenesisBlock),
0,
0,
0

5
src/chainparams.h
View file

@ -46,6 +46,11 @@ public:
MAX_BASE58_TYPES
};
/**
* Maps strNetworkID [see BIP70] to chainID (hashGenesisBlock and genesis checkpoint)
*/
static const std::map<std::string, uint256> supportedChains;
const Consensus::Params& GetConsensus() const { return consensus; }
const CMessageHeader::MessageStartChars& MessageStart() const { return pchMessageStart; }
const std::vector<unsigned char>& AlertKey() const { return vAlertPubKey; }

21
src/test/Checkpoints_tests.cpp
View file

@ -2,22 +2,29 @@
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
//
// Unit tests for block-chain checkpoints
//
#include "checkpoints.h"
#include "uint256.h"
#include "test/test_bitcoin.h"
#include "chainparams.h"
#include <boost/test/unit_test.hpp>
using namespace std;
BOOST_FIXTURE_TEST_SUITE(Checkpoints_tests, BasicTestingSetup)
// The hash of the genesis block it's the genesis checkpoint and chain id
BOOST_AUTO_TEST_CASE(genesisblockhash_test)
{
std::map<std::string, uint256>::const_iterator iter;
for (iter = CChainParams::supportedChains.begin(); iter != CChainParams::supportedChains.end(); ++iter) {
const CChainParams& chainparams = Params(iter->first);
std::string hashStr = chainparams.GenesisBlock().GetHash().GetHex();
BOOST_CHECK_EQUAL(hashStr, iter->second.GetHex());
BOOST_CHECK_EQUAL(hashStr, chainparams.GetConsensus().hashGenesisBlock.GetHex());
const uint256& genesisCheckpoint = chainparams.Checkpoints().mapCheckpoints.find(0)->second;
BOOST_CHECK_EQUAL(hashStr, genesisCheckpoint.GetHex());
}
}
BOOST_AUTO_TEST_CASE(sanity)
{
const Checkpoints::CCheckpointData& checkpoints = Params(CBaseChainParams::MAIN).Checkpoints();