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chainparams.cpp 15KB

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  1. // Copyright (c) 2010 Satoshi Nakamoto
  2. // Copyright (c) 2009-2014 The Bitcoin developers
  3. // Distributed under the MIT/X11 software license, see the accompanying
  4. // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  5. #include "chainparams.h"
  6. #include "random.h"
  7. #include "util.h"
  8. #include <assert.h>
  9. #include <boost/assign/list_of.hpp>
  10. using namespace std;
  11. using namespace boost::assign;
  12. struct SeedSpec6 {
  13. uint8_t addr[16];
  14. uint16_t port;
  15. };
  16. #include "chainparamsseeds.h"
  17. //
  18. // Main network
  19. //
  20. // Convert the pnSeeds6 array into usable address objects.
  21. static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count)
  22. {
  23. // It'll only connect to one or two seed nodes because once it connects,
  24. // it'll get a pile of addresses with newer timestamps.
  25. // Seed nodes are given a random 'last seen time' of between one and two
  26. // weeks ago.
  27. const int64_t nOneWeek = 7*24*60*60;
  28. for (unsigned int i = 0; i < count; i++)
  29. {
  30. struct in6_addr ip;
  31. memcpy(&ip, data[i].addr, sizeof(ip));
  32. CAddress addr(CService(ip, data[i].port));
  33. addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek;
  34. vSeedsOut.push_back(addr);
  35. }
  36. }
  37. // What makes a good checkpoint block?
  38. // + Is surrounded by blocks with reasonable timestamps
  39. // (no blocks before with a timestamp after, none after with
  40. // timestamp before)
  41. // + Contains no strange transactions
  42. static Checkpoints::MapCheckpoints mapCheckpoints =
  43. boost::assign::map_list_of
  44. ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  45. ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  46. ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  47. (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  48. (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  49. (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  50. (193000, uint256("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  51. (210000, uint256("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  52. (216116, uint256("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  53. (225430, uint256("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  54. (250000, uint256("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  55. (279000, uint256("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  56. (295000, uint256("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
  57. ;
  58. static const Checkpoints::CCheckpointData data = {
  59. &mapCheckpoints,
  60. 1397080064, // * UNIX timestamp of last checkpoint block
  61. 36544669, // * total number of transactions between genesis and last checkpoint
  62. // (the tx=... number in the SetBestChain debug.log lines)
  63. 60000.0 // * estimated number of transactions per day after checkpoint
  64. };
  65. static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
  66. boost::assign::map_list_of
  67. ( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
  68. ;
  69. static const Checkpoints::CCheckpointData dataTestnet = {
  70. &mapCheckpointsTestnet,
  71. 1337966069,
  72. 1488,
  73. 300
  74. };
  75. static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
  76. boost::assign::map_list_of
  77. ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
  78. ;
  79. static const Checkpoints::CCheckpointData dataRegtest = {
  80. &mapCheckpointsRegtest,
  81. 0,
  82. 0,
  83. 0
  84. };
  85. class CMainParams : public CChainParams {
  86. public:
  87. CMainParams() {
  88. networkID = CBaseChainParams::MAIN;
  89. strNetworkID = "main";
  90. // The message start string is designed to be unlikely to occur in normal data.
  91. // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  92. // a large 4-byte int at any alignment.
  93. pchMessageStart[0] = 0xf9;
  94. pchMessageStart[1] = 0xbe;
  95. pchMessageStart[2] = 0xb4;
  96. pchMessageStart[3] = 0xd9;
  97. vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  98. nDefaultPort = 8333;
  99. bnProofOfWorkLimit = ~uint256(0) >> 32;
  100. nSubsidyHalvingInterval = 210000;
  101. nEnforceBlockUpgradeMajority = 750;
  102. nRejectBlockOutdatedMajority = 950;
  103. nToCheckBlockUpgradeMajority = 1000;
  104. nMinerThreads = 0;
  105. nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  106. nTargetSpacing = 10 * 60;
  107. // Build the genesis block. Note that the output of the genesis coinbase cannot
  108. // be spent as it did not originally exist in the database.
  109. //
  110. // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  111. // CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  112. // CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  113. // CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  114. // vMerkleTree: 4a5e1e
  115. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  116. CMutableTransaction txNew;
  117. txNew.vin.resize(1);
  118. txNew.vout.resize(1);
  119. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  120. txNew.vout[0].nValue = 50 * COIN;
  121. txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  122. genesis.vtx.push_back(txNew);
  123. genesis.hashPrevBlock = 0;
  124. genesis.hashMerkleRoot = genesis.BuildMerkleTree();
  125. genesis.nVersion = 1;
  126. genesis.nTime = 1231006505;
  127. genesis.nBits = 0x1d00ffff;
  128. genesis.nNonce = 2083236893;
  129. hashGenesisBlock = genesis.GetHash();
  130. assert(hashGenesisBlock == uint256("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  131. assert(genesis.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  132. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be"));
  133. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me"));
  134. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org"));
  135. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com"));
  136. vSeeds.push_back(CDNSSeedData("bitnodes.io", "seed.bitnodes.io"));
  137. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org"));
  138. base58Prefixes[PUBKEY_ADDRESS] = list_of(0);
  139. base58Prefixes[SCRIPT_ADDRESS] = list_of(5);
  140. base58Prefixes[SECRET_KEY] = list_of(128);
  141. base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x88)(0xB2)(0x1E);
  142. base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x88)(0xAD)(0xE4);
  143. convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));
  144. fRequireRPCPassword = true;
  145. fMiningRequiresPeers = true;
  146. fDefaultCheckMemPool = false;
  147. fAllowMinDifficultyBlocks = false;
  148. fRequireStandard = true;
  149. fMineBlocksOnDemand = false;
  150. fSkipProofOfWorkCheck = false;
  151. }
  152. const Checkpoints::CCheckpointData& Checkpoints() const
  153. {
  154. return data;
  155. }
  156. };
  157. static CMainParams mainParams;
  158. //
  159. // Testnet (v3)
  160. //
  161. class CTestNetParams : public CMainParams {
  162. public:
  163. CTestNetParams() {
  164. networkID = CBaseChainParams::TESTNET;
  165. strNetworkID = "test";
  166. // The message start string is designed to be unlikely to occur in normal data.
  167. // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  168. // a large 4-byte int at any alignment.
  169. pchMessageStart[0] = 0x0b;
  170. pchMessageStart[1] = 0x11;
  171. pchMessageStart[2] = 0x09;
  172. pchMessageStart[3] = 0x07;
  173. vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
  174. nDefaultPort = 18333;
  175. nEnforceBlockUpgradeMajority = 51;
  176. nRejectBlockOutdatedMajority = 75;
  177. nToCheckBlockUpgradeMajority = 100;
  178. nMinerThreads = 0;
  179. nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  180. nTargetSpacing = 10 * 60;
  181. // Modify the testnet genesis block so the timestamp is valid for a later start.
  182. genesis.nTime = 1296688602;
  183. genesis.nNonce = 414098458;
  184. hashGenesisBlock = genesis.GetHash();
  185. assert(hashGenesisBlock == uint256("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  186. vFixedSeeds.clear();
  187. vSeeds.clear();
  188. vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
  189. vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
  190. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  191. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  192. base58Prefixes[PUBKEY_ADDRESS] = list_of(111);
  193. base58Prefixes[SCRIPT_ADDRESS] = list_of(196);
  194. base58Prefixes[SECRET_KEY] = list_of(239);
  195. base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF);
  196. base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94);
  197. convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));
  198. fRequireRPCPassword = true;
  199. fMiningRequiresPeers = true;
  200. fDefaultCheckMemPool = false;
  201. fAllowMinDifficultyBlocks = true;
  202. fRequireStandard = false;
  203. fMineBlocksOnDemand = false;
  204. }
  205. const Checkpoints::CCheckpointData& Checkpoints() const
  206. {
  207. return dataTestnet;
  208. }
  209. };
  210. static CTestNetParams testNetParams;
  211. //
  212. // Regression test
  213. //
  214. class CRegTestParams : public CTestNetParams {
  215. public:
  216. CRegTestParams() {
  217. networkID = CBaseChainParams::REGTEST;
  218. strNetworkID = "regtest";
  219. pchMessageStart[0] = 0xfa;
  220. pchMessageStart[1] = 0xbf;
  221. pchMessageStart[2] = 0xb5;
  222. pchMessageStart[3] = 0xda;
  223. nSubsidyHalvingInterval = 150;
  224. nEnforceBlockUpgradeMajority = 750;
  225. nRejectBlockOutdatedMajority = 950;
  226. nToCheckBlockUpgradeMajority = 1000;
  227. nMinerThreads = 1;
  228. nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  229. nTargetSpacing = 10 * 60;
  230. bnProofOfWorkLimit = ~uint256(0) >> 1;
  231. genesis.nTime = 1296688602;
  232. genesis.nBits = 0x207fffff;
  233. genesis.nNonce = 2;
  234. hashGenesisBlock = genesis.GetHash();
  235. nDefaultPort = 18444;
  236. assert(hashGenesisBlock == uint256("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  237. vSeeds.clear(); // Regtest mode doesn't have any DNS seeds.
  238. fRequireRPCPassword = false;
  239. fMiningRequiresPeers = false;
  240. fDefaultCheckMemPool = true;
  241. fAllowMinDifficultyBlocks = true;
  242. fRequireStandard = false;
  243. fMineBlocksOnDemand = true;
  244. }
  245. const Checkpoints::CCheckpointData& Checkpoints() const
  246. {
  247. return dataRegtest;
  248. }
  249. };
  250. static CRegTestParams regTestParams;
  251. //
  252. // Unit test
  253. //
  254. class CUnitTestParams : public CMainParams, public CModifiableParams {
  255. public:
  256. CUnitTestParams() {
  257. networkID = CBaseChainParams::UNITTEST;
  258. strNetworkID = "unittest";
  259. nDefaultPort = 18445;
  260. vFixedSeeds.clear();
  261. vSeeds.clear(); // Regtest mode doesn't have any DNS seeds.
  262. fRequireRPCPassword = false;
  263. fMiningRequiresPeers = false;
  264. fDefaultCheckMemPool = true;
  265. fAllowMinDifficultyBlocks = false;
  266. fMineBlocksOnDemand = true;
  267. }
  268. const Checkpoints::CCheckpointData& Checkpoints() const
  269. {
  270. // UnitTest share the same checkpoints as MAIN
  271. return data;
  272. }
  273. // Published setters to allow changing values in unit test cases
  274. virtual void setSubsidyHalvingInterval(int anSubsidyHalvingInterval) { nSubsidyHalvingInterval=anSubsidyHalvingInterval; }
  275. virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority) { nEnforceBlockUpgradeMajority=anEnforceBlockUpgradeMajority; }
  276. virtual void setRejectBlockOutdatedMajority(int anRejectBlockOutdatedMajority) { nRejectBlockOutdatedMajority=anRejectBlockOutdatedMajority; }
  277. virtual void setToCheckBlockUpgradeMajority(int anToCheckBlockUpgradeMajority) { nToCheckBlockUpgradeMajority=anToCheckBlockUpgradeMajority; }
  278. virtual void setDefaultCheckMemPool(bool afDefaultCheckMemPool) { fDefaultCheckMemPool=afDefaultCheckMemPool; }
  279. virtual void setAllowMinDifficultyBlocks(bool afAllowMinDifficultyBlocks) { fAllowMinDifficultyBlocks=afAllowMinDifficultyBlocks; }
  280. virtual void setSkipProofOfWorkCheck(bool afSkipProofOfWorkCheck) { fSkipProofOfWorkCheck = afSkipProofOfWorkCheck; }
  281. };
  282. static CUnitTestParams unitTestParams;
  283. static CChainParams *pCurrentParams = 0;
  284. CModifiableParams *ModifiableParams()
  285. {
  286. assert(pCurrentParams);
  287. assert(pCurrentParams==&unitTestParams);
  288. return (CModifiableParams*)&unitTestParams;
  289. }
  290. const CChainParams &Params() {
  291. assert(pCurrentParams);
  292. return *pCurrentParams;
  293. }
  294. CChainParams &Params(CBaseChainParams::Network network) {
  295. switch (network) {
  296. case CBaseChainParams::MAIN:
  297. return mainParams;
  298. case CBaseChainParams::TESTNET:
  299. return testNetParams;
  300. case CBaseChainParams::REGTEST:
  301. return regTestParams;
  302. case CBaseChainParams::UNITTEST:
  303. return unitTestParams;
  304. default:
  305. assert(false && "Unimplemented network");
  306. return mainParams;
  307. }
  308. }
  309. void SelectParams(CBaseChainParams::Network network) {
  310. SelectBaseParams(network);
  311. pCurrentParams = &Params(network);
  312. }
  313. bool SelectParamsFromCommandLine() {
  314. if (!SelectBaseParamsFromCommandLine())
  315. return false;
  316. SelectParams(BaseParams().NetworkID());
  317. return true;
  318. }