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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 "utilstrencodings.h"
  9. #include <assert.h>
  10. #include <boost/assign/list_of.hpp>
  11. using namespace std;
  12. using namespace boost::assign;
  13. struct SeedSpec6 {
  14. uint8_t addr[16];
  15. uint16_t port;
  16. };
  17. #include "chainparamsseeds.h"
  18. //
  19. // Main network
  20. //
  21. // Convert the pnSeeds6 array into usable address objects.
  22. static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count)
  23. {
  24. // It'll only connect to one or two seed nodes because once it connects,
  25. // it'll get a pile of addresses with newer timestamps.
  26. // Seed nodes are given a random 'last seen time' of between one and two
  27. // weeks ago.
  28. const int64_t nOneWeek = 7*24*60*60;
  29. for (unsigned int i = 0; i < count; i++)
  30. {
  31. struct in6_addr ip;
  32. memcpy(&ip, data[i].addr, sizeof(ip));
  33. CAddress addr(CService(ip, data[i].port));
  34. addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek;
  35. vSeedsOut.push_back(addr);
  36. }
  37. }
  38. // What makes a good checkpoint block?
  39. // + Is surrounded by blocks with reasonable timestamps
  40. // (no blocks before with a timestamp after, none after with
  41. // timestamp before)
  42. // + Contains no strange transactions
  43. static Checkpoints::MapCheckpoints mapCheckpoints =
  44. boost::assign::map_list_of
  45. ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  46. ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  47. ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  48. (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  49. (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  50. (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  51. (193000, uint256("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  52. (210000, uint256("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  53. (216116, uint256("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  54. (225430, uint256("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  55. (250000, uint256("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  56. (279000, uint256("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  57. (295000, uint256("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
  58. ;
  59. static const Checkpoints::CCheckpointData data = {
  60. &mapCheckpoints,
  61. 1397080064, // * UNIX timestamp of last checkpoint block
  62. 36544669, // * total number of transactions between genesis and last checkpoint
  63. // (the tx=... number in the SetBestChain debug.log lines)
  64. 60000.0 // * estimated number of transactions per day after checkpoint
  65. };
  66. static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
  67. boost::assign::map_list_of
  68. ( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
  69. ;
  70. static const Checkpoints::CCheckpointData dataTestnet = {
  71. &mapCheckpointsTestnet,
  72. 1337966069,
  73. 1488,
  74. 300
  75. };
  76. static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
  77. boost::assign::map_list_of
  78. ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
  79. ;
  80. static const Checkpoints::CCheckpointData dataRegtest = {
  81. &mapCheckpointsRegtest,
  82. 0,
  83. 0,
  84. 0
  85. };
  86. class CMainParams : public CChainParams {
  87. public:
  88. CMainParams() {
  89. networkID = CBaseChainParams::MAIN;
  90. strNetworkID = "main";
  91. // The message start string is designed to be unlikely to occur in normal data.
  92. // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  93. // a large 4-byte int at any alignment.
  94. pchMessageStart[0] = 0xf9;
  95. pchMessageStart[1] = 0xbe;
  96. pchMessageStart[2] = 0xb4;
  97. pchMessageStart[3] = 0xd9;
  98. vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  99. nDefaultPort = 8333;
  100. bnProofOfWorkLimit = ~uint256(0) >> 32;
  101. nSubsidyHalvingInterval = 210000;
  102. nEnforceBlockUpgradeMajority = 750;
  103. nRejectBlockOutdatedMajority = 950;
  104. nToCheckBlockUpgradeMajority = 1000;
  105. nMinerThreads = 0;
  106. nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  107. nTargetSpacing = 10 * 60;
  108. // Build the genesis block. Note that the output of the genesis coinbase cannot
  109. // be spent as it did not originally exist in the database.
  110. //
  111. // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  112. // CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  113. // CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  114. // CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  115. // vMerkleTree: 4a5e1e
  116. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  117. CMutableTransaction txNew;
  118. txNew.vin.resize(1);
  119. txNew.vout.resize(1);
  120. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  121. txNew.vout[0].nValue = 50 * COIN;
  122. txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  123. genesis.vtx.push_back(txNew);
  124. genesis.hashPrevBlock = 0;
  125. genesis.hashMerkleRoot = genesis.BuildMerkleTree();
  126. genesis.nVersion = 1;
  127. genesis.nTime = 1231006505;
  128. genesis.nBits = 0x1d00ffff;
  129. genesis.nNonce = 2083236893;
  130. hashGenesisBlock = genesis.GetHash();
  131. assert(hashGenesisBlock == uint256("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  132. assert(genesis.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  133. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be"));
  134. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me"));
  135. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org"));
  136. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com"));
  137. vSeeds.push_back(CDNSSeedData("bitnodes.io", "seed.bitnodes.io"));
  138. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org"));
  139. base58Prefixes[PUBKEY_ADDRESS] = list_of(0);
  140. base58Prefixes[SCRIPT_ADDRESS] = list_of(5);
  141. base58Prefixes[SECRET_KEY] = list_of(128);
  142. base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x88)(0xB2)(0x1E);
  143. base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x88)(0xAD)(0xE4);
  144. convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));
  145. fRequireRPCPassword = true;
  146. fMiningRequiresPeers = true;
  147. fDefaultCheckMemPool = false;
  148. fAllowMinDifficultyBlocks = false;
  149. fRequireStandard = true;
  150. fMineBlocksOnDemand = false;
  151. fSkipProofOfWorkCheck = false;
  152. fTestnetToBeDeprecatedFieldRPC = false;
  153. }
  154. const Checkpoints::CCheckpointData& Checkpoints() const
  155. {
  156. return data;
  157. }
  158. };
  159. static CMainParams mainParams;
  160. //
  161. // Testnet (v3)
  162. //
  163. class CTestNetParams : public CMainParams {
  164. public:
  165. CTestNetParams() {
  166. networkID = CBaseChainParams::TESTNET;
  167. strNetworkID = "test";
  168. // The message start string is designed to be unlikely to occur in normal data.
  169. // The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  170. // a large 4-byte int at any alignment.
  171. pchMessageStart[0] = 0x0b;
  172. pchMessageStart[1] = 0x11;
  173. pchMessageStart[2] = 0x09;
  174. pchMessageStart[3] = 0x07;
  175. vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
  176. nDefaultPort = 18333;
  177. nEnforceBlockUpgradeMajority = 51;
  178. nRejectBlockOutdatedMajority = 75;
  179. nToCheckBlockUpgradeMajority = 100;
  180. nMinerThreads = 0;
  181. nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  182. nTargetSpacing = 10 * 60;
  183. // Modify the testnet genesis block so the timestamp is valid for a later start.
  184. genesis.nTime = 1296688602;
  185. genesis.nNonce = 414098458;
  186. hashGenesisBlock = genesis.GetHash();
  187. assert(hashGenesisBlock == uint256("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  188. vFixedSeeds.clear();
  189. vSeeds.clear();
  190. vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
  191. vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
  192. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  193. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  194. base58Prefixes[PUBKEY_ADDRESS] = list_of(111);
  195. base58Prefixes[SCRIPT_ADDRESS] = list_of(196);
  196. base58Prefixes[SECRET_KEY] = list_of(239);
  197. base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF);
  198. base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94);
  199. convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));
  200. fRequireRPCPassword = true;
  201. fMiningRequiresPeers = true;
  202. fDefaultCheckMemPool = false;
  203. fAllowMinDifficultyBlocks = true;
  204. fRequireStandard = false;
  205. fMineBlocksOnDemand = false;
  206. fTestnetToBeDeprecatedFieldRPC = true;
  207. }
  208. const Checkpoints::CCheckpointData& Checkpoints() const
  209. {
  210. return dataTestnet;
  211. }
  212. };
  213. static CTestNetParams testNetParams;
  214. //
  215. // Regression test
  216. //
  217. class CRegTestParams : public CTestNetParams {
  218. public:
  219. CRegTestParams() {
  220. networkID = CBaseChainParams::REGTEST;
  221. strNetworkID = "regtest";
  222. pchMessageStart[0] = 0xfa;
  223. pchMessageStart[1] = 0xbf;
  224. pchMessageStart[2] = 0xb5;
  225. pchMessageStart[3] = 0xda;
  226. nSubsidyHalvingInterval = 150;
  227. nEnforceBlockUpgradeMajority = 750;
  228. nRejectBlockOutdatedMajority = 950;
  229. nToCheckBlockUpgradeMajority = 1000;
  230. nMinerThreads = 1;
  231. nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  232. nTargetSpacing = 10 * 60;
  233. bnProofOfWorkLimit = ~uint256(0) >> 1;
  234. genesis.nTime = 1296688602;
  235. genesis.nBits = 0x207fffff;
  236. genesis.nNonce = 2;
  237. hashGenesisBlock = genesis.GetHash();
  238. nDefaultPort = 18444;
  239. assert(hashGenesisBlock == uint256("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  240. vSeeds.clear(); // Regtest mode doesn't have any DNS seeds.
  241. fRequireRPCPassword = false;
  242. fMiningRequiresPeers = false;
  243. fDefaultCheckMemPool = true;
  244. fAllowMinDifficultyBlocks = true;
  245. fRequireStandard = false;
  246. fMineBlocksOnDemand = true;
  247. fTestnetToBeDeprecatedFieldRPC = false;
  248. }
  249. const Checkpoints::CCheckpointData& Checkpoints() const
  250. {
  251. return dataRegtest;
  252. }
  253. };
  254. static CRegTestParams regTestParams;
  255. //
  256. // Unit test
  257. //
  258. class CUnitTestParams : public CMainParams, public CModifiableParams {
  259. public:
  260. CUnitTestParams() {
  261. networkID = CBaseChainParams::UNITTEST;
  262. strNetworkID = "unittest";
  263. nDefaultPort = 18445;
  264. vFixedSeeds.clear();
  265. vSeeds.clear(); // Regtest mode doesn't have any DNS seeds.
  266. fRequireRPCPassword = false;
  267. fMiningRequiresPeers = false;
  268. fDefaultCheckMemPool = true;
  269. fAllowMinDifficultyBlocks = false;
  270. fMineBlocksOnDemand = true;
  271. }
  272. const Checkpoints::CCheckpointData& Checkpoints() const
  273. {
  274. // UnitTest share the same checkpoints as MAIN
  275. return data;
  276. }
  277. // Published setters to allow changing values in unit test cases
  278. virtual void setSubsidyHalvingInterval(int anSubsidyHalvingInterval) { nSubsidyHalvingInterval=anSubsidyHalvingInterval; }
  279. virtual void setEnforceBlockUpgradeMajority(int anEnforceBlockUpgradeMajority) { nEnforceBlockUpgradeMajority=anEnforceBlockUpgradeMajority; }
  280. virtual void setRejectBlockOutdatedMajority(int anRejectBlockOutdatedMajority) { nRejectBlockOutdatedMajority=anRejectBlockOutdatedMajority; }
  281. virtual void setToCheckBlockUpgradeMajority(int anToCheckBlockUpgradeMajority) { nToCheckBlockUpgradeMajority=anToCheckBlockUpgradeMajority; }
  282. virtual void setDefaultCheckMemPool(bool afDefaultCheckMemPool) { fDefaultCheckMemPool=afDefaultCheckMemPool; }
  283. virtual void setAllowMinDifficultyBlocks(bool afAllowMinDifficultyBlocks) { fAllowMinDifficultyBlocks=afAllowMinDifficultyBlocks; }
  284. virtual void setSkipProofOfWorkCheck(bool afSkipProofOfWorkCheck) { fSkipProofOfWorkCheck = afSkipProofOfWorkCheck; }
  285. };
  286. static CUnitTestParams unitTestParams;
  287. static CChainParams *pCurrentParams = 0;
  288. CModifiableParams *ModifiableParams()
  289. {
  290. assert(pCurrentParams);
  291. assert(pCurrentParams==&unitTestParams);
  292. return (CModifiableParams*)&unitTestParams;
  293. }
  294. const CChainParams &Params() {
  295. assert(pCurrentParams);
  296. return *pCurrentParams;
  297. }
  298. CChainParams &Params(CBaseChainParams::Network network) {
  299. switch (network) {
  300. case CBaseChainParams::MAIN:
  301. return mainParams;
  302. case CBaseChainParams::TESTNET:
  303. return testNetParams;
  304. case CBaseChainParams::REGTEST:
  305. return regTestParams;
  306. case CBaseChainParams::UNITTEST:
  307. return unitTestParams;
  308. default:
  309. assert(false && "Unimplemented network");
  310. return mainParams;
  311. }
  312. }
  313. void SelectParams(CBaseChainParams::Network network) {
  314. SelectBaseParams(network);
  315. pCurrentParams = &Params(network);
  316. }
  317. bool SelectParamsFromCommandLine() {
  318. if (!SelectBaseParamsFromCommandLine())
  319. return false;
  320. SelectParams(BaseParams().NetworkID());
  321. return true;
  322. }