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config: add forwarding policy rules to config

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This commit moves the forwarding policy rules for Bitcoin
and Litecoin, previously defined in the chainregistry, to
config.go, making them possible to define by the user.
We validate that the TimeLockDelta set is at least 4, the
other rules we let the user specify arbitrarily, even 0.
This commit is contained in:
Johan T. Halseth 2017-12-17 14:31:38 +01:00
parent 79a6efe33f
commit f4feb1e697
No known key found for this signature in database
GPG Key ID: 15BAADA29DA20D26
1 changed files with 41 additions and 4 deletions
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45
config.go
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@ -41,6 +41,20 @@ const (
defaultNumChanConfs = 3
defaultNoEncryptWallet = false
defaultTrickleDelay = 30 * 1000
// minTimeLockDelta is the minimum timelock we require for incoming
// HTLCs on our channels.
minTimeLockDelta = 4
defaultBitcoinMinHTLCMSat = 1000
defaultBitcoinBaseFeeMSat = 1000
defaultBitcoinFeeRate = 1
defaultBitcoinTimeLockDelta = 144
defaultLitecoinMinHTLCMSat = 1000
defaultLitecoinBaseFeeMSat = 1000
defaultLitecoinFeeRate = 1
defaultLitecoinTimeLockDelta = 576
)
var (
@ -74,6 +88,11 @@ type chainConfig struct {
TestNet3 bool `long:"testnet" description:"Use the test network"`
SimNet bool `long:"simnet" description:"Use the simulation test network"`
RegTest bool `long:"regtest" description:"Use the regression test network"`
MinHTLC lnwire.MilliSatoshi `long:"minhtlc" description:"The smallest HTLC we are willing to forward on our channels, in millisatoshi"`
BaseFee lnwire.MilliSatoshi `long:"basefee" description:"The base fee in millisatoshi we will charge for forwarding payments on our channels"`
FeeRate lnwire.MilliSatoshi `long:"feerate" description:"The fee rate used when forwarding payments on our channels. The total fee charged is basefee + (amount * feerate / 1000000), where amount is the forwarded amount."`
TimeLockDelta uint32 `long:"timelockdelta" description:"The CLTV delta we will subtract from a forwarded HTLC's timelock value"`
}
type neutrinoConfig struct {
@ -165,12 +184,20 @@ func loadConfig() (*config, error) {
DefaultNumChanConfs: defaultNumChanConfs,
NoEncryptWallet: defaultNoEncryptWallet,
Bitcoin: &chainConfig{
RPCHost: defaultRPCHost,
RPCCert: defaultBtcdRPCCertFile,
RPCHost: defaultRPCHost,
RPCCert: defaultBtcdRPCCertFile,
MinHTLC: defaultBitcoinMinHTLCMSat,
BaseFee: defaultBitcoinBaseFeeMSat,
FeeRate: defaultBitcoinFeeRate,
TimeLockDelta: defaultBitcoinTimeLockDelta,
},
Litecoin: &chainConfig{
RPCHost: defaultRPCHost,
RPCCert: defaultLtcdRPCCertFile,
RPCHost: defaultRPCHost,
RPCCert: defaultLtcdRPCCertFile,
MinHTLC: defaultLitecoinMinHTLCMSat,
BaseFee: defaultLitecoinBaseFeeMSat,
FeeRate: defaultLitecoinFeeRate,
TimeLockDelta: defaultLitecoinTimeLockDelta,
},
Autopilot: &autoPilotConfig{
MaxChannels: 5,
@ -256,6 +283,11 @@ func loadConfig() (*config, error) {
return nil, fmt.Errorf(str, funcName)
}
if cfg.Litecoin.TimeLockDelta < minTimeLockDelta {
return nil, fmt.Errorf("timelockdelta must be at least %v",
minTimeLockDelta)
}
// The litecoin chain is the current active chain. However
// throughout the codebase we required chiancfg.Params. So as a
// temporary hack, we'll mutate the default net params for
@ -305,6 +337,11 @@ func loadConfig() (*config, error) {
return nil, err
}
if cfg.Bitcoin.TimeLockDelta < minTimeLockDelta {
return nil, fmt.Errorf("timelockdelta must be at least %v",
minTimeLockDelta)
}
if !cfg.NeutrinoMode.Active {
// If needed, we'll attempt to automatically configure
// the RPC control plan for the target btcd node.