lnd.xprv/chainparams.go

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2019-01-24 16:28:25 +03:00
package lnd
import (
"github.com/btcsuite/btcd/chaincfg"
bitcoinCfg "github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcd/chaincfg/chainhash"
bitcoinWire "github.com/btcsuite/btcd/wire"
"github.com/lightningnetwork/lnd/keychain"
litecoinCfg "github.com/ltcsuite/ltcd/chaincfg"
litecoinWire "github.com/ltcsuite/ltcd/wire"
)
// activeNetParams is a pointer to the parameters specific to the currently
// active bitcoin network.
var activeNetParams = bitcoinTestNetParams
// bitcoinNetParams couples the p2p parameters of a network with the
// corresponding RPC port of a daemon running on the particular network.
type bitcoinNetParams struct {
*bitcoinCfg.Params
rpcPort string
CoinType uint32
}
// litecoinNetParams couples the p2p parameters of a network with the
// corresponding RPC port of a daemon running on the particular network.
type litecoinNetParams struct {
*litecoinCfg.Params
rpcPort string
CoinType uint32
}
// bitcoinTestNetParams contains parameters specific to the 3rd version of the
// test network.
var bitcoinTestNetParams = bitcoinNetParams{
Params: &bitcoinCfg.TestNet3Params,
rpcPort: "18334",
CoinType: keychain.CoinTypeTestnet,
}
// bitcoinMainNetParams contains parameters specific to the current Bitcoin
// mainnet.
var bitcoinMainNetParams = bitcoinNetParams{
Params: &bitcoinCfg.MainNetParams,
rpcPort: "8334",
CoinType: keychain.CoinTypeBitcoin,
}
// bitcoinSimNetParams contains parameters specific to the simulation test
// network.
var bitcoinSimNetParams = bitcoinNetParams{
Params: &bitcoinCfg.SimNetParams,
rpcPort: "18556",
CoinType: keychain.CoinTypeTestnet,
}
// litecoinSimNetParams contains parameters specific to the simulation test
// network.
var litecoinSimNetParams = litecoinNetParams{
Params: &litecoinCfg.SimNetParams,
rpcPort: "18556",
CoinType: keychain.CoinTypeTestnet,
}
// litecoinTestNetParams contains parameters specific to the 4th version of the
// test network.
var litecoinTestNetParams = litecoinNetParams{
Params: &litecoinCfg.TestNet4Params,
rpcPort: "19334",
CoinType: keychain.CoinTypeTestnet,
}
// litecoinMainNetParams contains the parameters specific to the current
// Litecoin mainnet.
var litecoinMainNetParams = litecoinNetParams{
Params: &litecoinCfg.MainNetParams,
rpcPort: "9334",
CoinType: keychain.CoinTypeLitecoin,
}
// litecoinRegTestNetParams contains parameters specific to a local litecoin
// regtest network.
var litecoinRegTestNetParams = litecoinNetParams{
Params: &litecoinCfg.RegressionNetParams,
rpcPort: "18334",
CoinType: keychain.CoinTypeTestnet,
}
// bitcoinRegTestNetParams contains parameters specific to a local bitcoin
// regtest network.
var bitcoinRegTestNetParams = bitcoinNetParams{
Params: &bitcoinCfg.RegressionNetParams,
rpcPort: "18334",
CoinType: keychain.CoinTypeTestnet,
}
// applyLitecoinParams applies the relevant chain configuration parameters that
// differ for litecoin to the chain parameters typed for btcsuite derivation.
// This function is used in place of using something like interface{} to
// abstract over _which_ chain (or fork) the parameters are for.
func applyLitecoinParams(params *bitcoinNetParams, litecoinParams *litecoinNetParams) {
params.Name = litecoinParams.Name
params.Net = bitcoinWire.BitcoinNet(litecoinParams.Net)
params.DefaultPort = litecoinParams.DefaultPort
params.CoinbaseMaturity = litecoinParams.CoinbaseMaturity
copy(params.GenesisHash[:], litecoinParams.GenesisHash[:])
// Address encoding magics
params.PubKeyHashAddrID = litecoinParams.PubKeyHashAddrID
params.ScriptHashAddrID = litecoinParams.ScriptHashAddrID
params.PrivateKeyID = litecoinParams.PrivateKeyID
params.WitnessPubKeyHashAddrID = litecoinParams.WitnessPubKeyHashAddrID
params.WitnessScriptHashAddrID = litecoinParams.WitnessScriptHashAddrID
params.Bech32HRPSegwit = litecoinParams.Bech32HRPSegwit
copy(params.HDPrivateKeyID[:], litecoinParams.HDPrivateKeyID[:])
copy(params.HDPublicKeyID[:], litecoinParams.HDPublicKeyID[:])
params.HDCoinType = litecoinParams.HDCoinType
checkPoints := make([]chaincfg.Checkpoint, len(litecoinParams.Checkpoints))
for i := 0; i < len(litecoinParams.Checkpoints); i++ {
var chainHash chainhash.Hash
copy(chainHash[:], litecoinParams.Checkpoints[i].Hash[:])
checkPoints[i] = chaincfg.Checkpoint{
Height: litecoinParams.Checkpoints[i].Height,
Hash: &chainHash,
}
}
params.Checkpoints = checkPoints
params.rpcPort = litecoinParams.rpcPort
params.CoinType = litecoinParams.CoinType
}
// isTestnet tests if the given params correspond to a testnet
// parameter configuration.
func isTestnet(params *bitcoinNetParams) bool {
switch params.Params.Net {
case bitcoinWire.TestNet3, bitcoinWire.BitcoinNet(litecoinWire.TestNet4):
return true
default:
return false
}
}