Merge pull request #443 from acolytec3/supprt_custom_networks
Support custom networks
This commit is contained in:
andri lim
GitHub
commit
8244418965
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@ -8,7 +8,7 @@
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# those terms.
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import
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parseopt, strutils, macros, os, times,
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parseopt, strutils, macros, os, times, json, stew/[byteutils, ranges],
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chronos, eth/[keys, common, p2p, net/nat], chronicles, nimcrypto/hash,
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eth/p2p/bootnodes, eth/p2p/rlpx_protocols/whisper_protocol,
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./db/select_backend,
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@ -143,6 +143,27 @@ type
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net*: NetConfiguration ## Network configuration
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debug*: DebugConfiguration ## Debug configuration
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shh*: WhisperConfig ## Whisper configuration
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customGenesis*: CustomGenesisConfig ## Custom Genesis Configuration
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CustomGenesisConfig = object
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chainId*: uint
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homesteadBlock*: BlockNumber
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daoForkBlock*: BlockNumber
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daoForkSupport*: bool
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eip150Block*: BlockNumber
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eip150Hash*: Hash256
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eip155Block*: BlockNumber
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eip158Block*: BlockNumber
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byzantiumBlock*: BlockNumber
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constantinopleBlock*: BlockNumber
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nonce*: BlockNonce
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extraData*: seq[byte]
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gasLimit*: int64
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difficulty*: UInt256
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prealloc*: JsonNode
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mixHash*: Hash256
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coinBase*: EthAddress
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timestamp*: EthTime
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const
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defaultRpcApi = {RpcFlags.Eth, RpcFlags.Shh}
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@ -154,6 +175,22 @@ var nimbusConfig {.threadvar.}: NimbusConfiguration
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proc getConfiguration*(): NimbusConfiguration {.gcsafe.}
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proc privateChainConfig*(): ChainConfig =
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let config = getConfiguration()
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result = ChainConfig(
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chainId: config.customGenesis.chainId,
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homesteadBlock: config.customGenesis.homesteadBlock,
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daoForkSupport: config.customGenesis.daoForkSupport,
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daoForkBlock: config.customGenesis.daoForkBlock,
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eip150Block: config.customGenesis.eip150Block,
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eip150Hash: config.customGenesis.eip150Hash,
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eip155Block: config.customGenesis.eip155Block,
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eip158Block: config.customGenesis.eip158Block,
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byzantiumBlock: config.customGenesis.byzantiumBlock,
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constantinopleBlock: config.customGenesis.constantinopleBlock,
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)
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trace "Custom genesis block configuration loaded", configuration=result
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proc publicChainConfig*(id: PublicNetwork): ChainConfig =
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result = case id
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of MainNet:
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@ -190,6 +227,8 @@ proc publicChainConfig*(id: PublicNetwork): ChainConfig =
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eip158Block: 3.toBlockNumber,
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byzantiumBlock: 1035301.toBlockNumber
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)
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of CustomNet:
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privateChainConfig()
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else:
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error "No chain config for public network", networkId = id
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doAssert(false, "No chain config for " & $id)
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@ -197,6 +236,124 @@ proc publicChainConfig*(id: PublicNetwork): ChainConfig =
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result.chainId = uint(id)
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proc processCustomGenesisConfig(customGenesis: JsonNode): ConfigStatus =
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## Parses Custom Genesis Block config options when customnetwork option provided
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template checkForFork(chain, currentFork, previousFork: untyped) =
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# Template to load fork blocks and validate order
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let currentForkName = currentFork.astToStr()
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if chain.hasKey(currentForkName):
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if chain[currentForkName].kind == JInt:
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currentFork = chain[currentForkName].getInt().toBlockNumber
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if currentFork < previousFork:
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error "Forks can't be assigned out of order"
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quit(1)
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else:
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error "Invalid block value provided for", currentForkName, invalidValue=currentFork
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quit(1)
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proc parseConfig(T: type, c: JsonNode, field: string): T =
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when T is string:
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c[field].getStr()
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elif T is Uint256:
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parseHexInt(c[field].getStr()).u256
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elif T is bool:
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c[field].getBool()
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elif T is Hash256:
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MDigest[256].fromHex(c[field].getStr())
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elif T is uint:
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c[field].getInt().uint
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elif T is Blocknonce:
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(parseHexInt(c[field].getStr()).uint64).toBlockNonce
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elif T is EthTime:
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fromHex[int64](c[field].getStr()).fromUnix
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elif T is EthAddress:
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parseAddress(c[field].getStr())
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elif T is seq[byte]:
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hexToSeqByte(c[field].getStr())
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elif T is int64:
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fromHex[int64](c[field].getStr())
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template validateConfigValue(chainDetails, field, jtype, T: untyped, checkError: static[bool] = true) =
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let fieldName = field.astToStr()
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if chainDetails.hasKey(fieldName):
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if chainDetails[fieldName].kind == jtype:
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field = parseConfig(T, chainDetails, fieldName)
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else:
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error "Invalid value provided for ", fieldName
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quit(1)
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else:
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when checkError:
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error "No value found in genesis block for", fieldName
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quit(1)
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let config = getConfiguration()
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result = Success
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var
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chainId = 0.uint
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homesteadBlock, daoForkblock, eip150Block, eip155Block, eip158Block, byzantiumBlock, constantinopleBlock = 0.toBlockNumber
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eip150Hash, mixHash : MDigest[256]
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daoForkSupport = false
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nonce = 66.toBlockNonce
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extraData = hexToSeqByte("0x")
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gasLimit = 16777216.int64
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difficulty = 1048576.u256
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alloc = parseJson("{}")
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timestamp : EthTime
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coinbase : EthAddress
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if customGenesis.hasKey("config"):
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# Validate all fork blocks for custom genesis
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let forkDetails = customGenesis["config"]
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validateConfigValue(forkDetails, chainId, JInt, uint)
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config.net.networkId = chainId
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checkForFork(forkDetails, homesteadBlock, 0.toBlockNumber)
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validateConfigValue(forkDetails, daoForkSupport, JBool, bool, checkError=false)
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if daoForkSupport == true:
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checkForFork(forkDetails, daoForkBlock, 0.toBlockNumber)
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checkForFork(forkDetails, eip150Block, homesteadBlock)
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validateConfigValue(forkDetails, eip150Hash, JString, Hash256)
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checkForFork(forkDetails, eip155Block, eip150Block)
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checkForFork(forkDetails, eip158Block, eip155Block)
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checkForFork(forkDetails, byzantiumBlock, eip158Block)
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checkForFork(forkDetails, constantinopleBlock, byzantiumBlock)
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else:
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error "No chain configuration found."
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quit(1)
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validateConfigValue(customGenesis, nonce, JString, BlockNonce)
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validateConfigValue(customGenesis, extraData, JSTring, seq[byte], checkError = false)
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validateConfigValue(customGenesis, gasLimit, JString, int64, checkError = false)
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validateConfigValue(customGenesis, difficulty, JString, UInt256)
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if customGenesis.hasKey("alloc"):
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alloc = customGenesis["alloc"]
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validateConfigValue(customGenesis, mixHash, JString, Hash256)
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validateConfigValue(customGenesis, coinbase, JString, EthAddress, checkError = false)
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validateConfigValue(customGenesis, timestamp, JString, EthTime, checkError = false)
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config.customGenesis = CustomGenesisConfig(
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chainId: chainId,
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homesteadBlock: homesteadBlock,
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eip150Block: eip150Block,
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eip150Hash: eip150Hash,
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eip155Block: eip155Block,
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eip158Block: eip158Block,
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daoForkSupport: daoForkSupport,
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byzantiumBlock: byzantiumBlock,
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constantinopleBlock: constantinopleBlock,
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nonce: nonce,
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extraData: extraData,
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gasLimit: gasLimit,
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difficulty: difficulty,
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prealloc: alloc,
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mixHash: mixHash,
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coinbase: coinbase,
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timestamp: timestamp
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)
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proc processList(v: string, o: var seq[string]) =
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## Process comma-separated list of strings.
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if len(v) > 0:
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@ -436,6 +593,24 @@ proc processNetArguments(key, value: string): ConfigStatus =
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config.net.setNetwork(RinkebyNet)
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elif skey == "kovan":
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config.net.setNetwork(KovanNet)
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elif skey == "customnetwork":
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if value == "":
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error "No genesis block config provided for custom network", network=key
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result = ErrorParseOption
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else:
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try:
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result = processCustomGenesisConfig(parseFile(value))
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except IOError:
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error "Genesis block config file not found", invalidFileName=value
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result = ErrorParseOption
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except JsonParsingError:
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error "Invalid genesis block config file format", invalidFileName=value
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result = ErrorIncorrectOption
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except:
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var exceptionType = getCurrentException()
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var msg = getCurrentExceptionMsg()
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error "Error loading genesis block config file", invalidFileName=msg
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result = Error
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elif skey == "networkid":
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var res = 0
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result = processInteger(value, res)
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@ -678,6 +853,7 @@ NETWORKING OPTIONS:
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--rinkeby Use Ethereum Rinkeby Test Network
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--ident:<value> Client identifier (default is '$1')
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--protocols:<value> Enable specific set of protocols (default: $4)
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--customnetwork Use custom genesis block for private Ethereum Network (as /path/to/genesis.json)
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WHISPER OPTIONS:
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--shh-maxsize:<value> Max message size accepted (default: $5)
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@ -766,4 +942,3 @@ when declared(os.paramCount): # not available with `--app:lib`
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proc processConfiguration*(pathname: string): ConfigStatus =
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## Process configuration file `pathname` and update `NimbusConfiguration`.
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result = Success
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@ -1,5 +1,5 @@
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import
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tables,
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tables, json, strutils,
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eth/[common, rlp, trie], stint, stew/[byteutils, ranges],
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chronicles, eth/trie/db,
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db/[db_chain, state_db], genesis_alloc, config, constants
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@ -32,6 +32,12 @@ func decodePrealloc(data: seq[byte]): GenesisAlloc =
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for tup in rlp.decode(data.toRange, seq[(UInt256, UInt256)]):
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result[toAddress(tup[0])] = GenesisAccount(balance: tup[1])
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proc customNetPrealloc(genesisBlock: JsonNode): GenesisAlloc =
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result = newTable[EthAddress, GenesisAccount]()
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for address, balance in genesisBlock.pairs():
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let balance = fromHex(UInt256,balance["balance"].getStr())
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result[parseAddress(address)] = GenesisAccount(balance: balance)
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proc defaultGenesisBlockForNetwork*(id: PublicNetwork): Genesis =
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result = case id
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of MainNet:
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@ -58,6 +64,22 @@ proc defaultGenesisBlockForNetwork*(id: PublicNetwork): Genesis =
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difficulty: 1048576.u256,
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alloc: decodePrealloc(rinkebyAllocData)
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)
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of CustomNet:
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let genesis = getConfiguration().customGenesis
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var alloc = new GenesisAlloc
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if genesis.prealloc != parseJson("{}"):
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alloc = customNetPrealloc(genesis.prealloc)
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Genesis(
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nonce: genesis.nonce,
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extraData: genesis.extraData,
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gasLimit: genesis.gasLimit,
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difficulty: genesis.difficulty,
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alloc: alloc,
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timestamp: genesis.timestamp,
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mixhash: genesis.mixHash,
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coinbase: genesis.coinbase
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)
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else:
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# TODO: Fill out the rest
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error "No default genesis for network", id
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@ -108,7 +130,7 @@ proc commit*(g: Genesis, db: BaseChainDB) =
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proc initializeEmptyDb*(db: BaseChainDB) =
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trace "Writing genesis to DB"
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let networkId = getConfiguration().net.networkId.toPublicNetwork()
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if networkId == CustomNet:
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raise newException(Exception, "Custom genesis not implemented")
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else:
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defaultGenesisBlockForNetwork(networkId).commit(db)
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# if networkId == CustomNet:
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# raise newException(Exception, "Custom genesis not implemented")
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# else:
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defaultGenesisBlockForNetwork(networkId).commit(db)
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@ -106,7 +106,7 @@ proc start() =
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createDir(conf.dataDir)
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let trieDB = trieDB newChainDb(conf.dataDir)
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let chainDB = newBaseChainDB(trieDB,
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var chainDB = newBaseChainDB(trieDB,
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conf.prune == PruneMode.Full,
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conf.net.networkId.toPublicNetwork())
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