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les: les/4 minimalistic version (#21909)

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* les: allow tx unindexing in les/4 light server mode

* les: minor fixes

* les: more small fixes

* les: add meaningful constants for recentTxIndex handshake field
This commit is contained in:
Felföldi Zsolt
2020-12-15 20:12:14 +01:00
committed by GitHub
parent 8cde2966af
commit c7f2536735
4 changed files with 40 additions and 6 deletions
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7
cmd/utils/flags.go
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@ -1491,10 +1491,9 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
CheckExclusive(ctx, LegacyLightServFlag, LightServeFlag, SyncModeFlag, "light")
CheckExclusive(ctx, DeveloperFlag, ExternalSignerFlag) // Can't use both ephemeral unlocked and external signer
CheckExclusive(ctx, GCModeFlag, "archive", TxLookupLimitFlag)
// todo(rjl493456442) make it available for les server
// Ancient tx indices pruning is not available for les server now
// since light client relies on the server for transaction status query.
CheckExclusive(ctx, LegacyLightServFlag, LightServeFlag, TxLookupLimitFlag)
if (ctx.GlobalIsSet(LegacyLightServFlag.Name) || ctx.GlobalIsSet(LightServeFlag.Name)) && ctx.GlobalIsSet(TxLookupLimitFlag.Name) {
log.Warn("LES server cannot serve old transaction status and cannot connect below les/4 protocol version if transaction lookup index is limited")
}
var ks *keystore.KeyStore
if keystores := stack.AccountManager().Backends(keystore.KeyStoreType); len(keystores) > 0 {
ks = keystores[0].(*keystore.KeyStore)