lnd.xprv/chainparams.go
nsa 3791c9efcb lnd: removing activeNetParams global, passed around instead via configs
This commit removes the activeNetParams global in chainparams.go. This
is necessary to isolate code from the lnd package so we can import it
for use in tests, other projects, etc.
2020-08-11 11:41:24 -04:00

144 lines
4.6 KiB
Go

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"
)
// 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
}
}