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all: on-chain oracle checkpoint syncing (#19543)

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* all: implement simple checkpoint syncing

cmd, les, node: remove callback mechanism

cmd, node: remove callback definition

les: simplify the registrar

les: expose checkpoint rpc services in the light client

les, light: don't store untrusted receipt

cmd, contracts, les: discard stale checkpoint

cmd, contracts/registrar: loose restriction of registeration

cmd, contracts: add replay-protection

all: off-chain multi-signature contract

params: deploy checkpoint contract for rinkeby

cmd/registrar: add raw signing mode for registrar

cmd/registrar, contracts/registrar, les: fixed messages

* cmd/registrar, contracts/registrar: fix lints

* accounts/abi/bind, les: address comments

* cmd, contracts, les, light, params: minor checkpoint sync cleanups

* cmd, eth, les, light: move checkpoint config to config file

* cmd, eth, les, params: address comments

* eth, les, params: address comments

* cmd: polish up the checkpoint admin CLI

* cmd, contracts, params: deploy new version contract

* cmd/checkpoint-admin: add another flag for clef mode signing

* cmd, contracts, les: rename and regen checkpoint oracle with abigen
This commit is contained in:
gary rong
2019-06-28 15:34:02 +08:00
committed by Péter Szilágyi
parent 702f52fb99
commit f7cdea2bdc
49 changed files with 2861 additions and 383 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
les/backend.go
View File

@@ -23,6 +23,7 @@ import (
"time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/common/mclock"
@@ -43,14 +44,13 @@ import (
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/params"
rpc "github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/rpc"
)
type LightEthereum struct {
lesCommons
odr *LesOdr
relay *LesTxRelay
chainConfig *params.ChainConfig
// Channel for shutting down the service
shutdownChan chan bool
@@ -62,6 +62,7 @@ type LightEthereum struct {
serverPool *serverPool
reqDist *requestDistributor
retriever *retrieveManager
relay *lesTxRelay
bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
bloomIndexer *core.ChainIndexer
@@ -116,16 +117,20 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
}
leth.serverPool = newServerPool(chainDb, quitSync, &leth.wg, trustedNodes)
leth.retriever = newRetrieveManager(peers, leth.reqDist, leth.serverPool)
leth.relay = NewLesTxRelay(peers, leth.retriever)
leth.relay = newLesTxRelay(peers, leth.retriever)
leth.odr = NewLesOdr(chainDb, light.DefaultClientIndexerConfig, leth.retriever)
leth.chtIndexer = light.NewChtIndexer(chainDb, leth.odr, params.CHTFrequency, params.HelperTrieConfirmations)
leth.bloomTrieIndexer = light.NewBloomTrieIndexer(chainDb, leth.odr, params.BloomBitsBlocksClient, params.BloomTrieFrequency)
leth.odr.SetIndexers(leth.chtIndexer, leth.bloomTrieIndexer, leth.bloomIndexer)
checkpoint := config.Checkpoint
if checkpoint == nil {
checkpoint = params.TrustedCheckpoints[genesisHash]
}
// Note: NewLightChain adds the trusted checkpoint so it needs an ODR with
// indexers already set but not started yet
if leth.blockchain, err = light.NewLightChain(leth.odr, leth.chainConfig, leth.engine); err != nil {
if leth.blockchain, err = light.NewLightChain(leth.odr, leth.chainConfig, leth.engine, checkpoint); err != nil {
return nil, err
}
// Note: AddChildIndexer starts the update process for the child
@@ -141,32 +146,6 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
}
leth.txPool = light.NewTxPool(leth.chainConfig, leth.blockchain, leth.relay)
if leth.protocolManager, err = NewProtocolManager(
leth.chainConfig,
light.DefaultClientIndexerConfig,
true,
config.NetworkId,
leth.eventMux,
leth.engine,
leth.peers,
leth.blockchain,
nil,
chainDb,
leth.odr,
leth.relay,
leth.serverPool,
quitSync,
&leth.wg,
config.ULC,
nil); err != nil {
return nil, err
}
if leth.protocolManager.isULCEnabled() {
log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.protocolManager.ulc.trustedKeys), "minTrustedFraction", leth.protocolManager.ulc.minTrustedFraction)
leth.blockchain.DisableCheckFreq()
}
leth.ApiBackend = &LesApiBackend{ctx.ExtRPCEnabled(), leth, nil}
gpoParams := config.GPO
@@ -174,6 +153,19 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
gpoParams.Default = config.Miner.GasPrice
}
leth.ApiBackend.gpo = gasprice.NewOracle(leth.ApiBackend, gpoParams)
oracle := config.CheckpointOracle
if oracle == nil {
oracle = params.CheckpointOracles[genesisHash]
}
registrar := newCheckpointOracle(oracle, leth.getLocalCheckpoint)
if leth.protocolManager, err = NewProtocolManager(leth.chainConfig, checkpoint, light.DefaultClientIndexerConfig, config.ULC, true, config.NetworkId, leth.eventMux, leth.peers, leth.blockchain, nil, chainDb, leth.odr, leth.serverPool, registrar, quitSync, &leth.wg, nil); err != nil {
return nil, err
}
if leth.protocolManager.isULCEnabled() {
log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.protocolManager.ulc.trustedKeys), "minTrustedFraction", leth.protocolManager.ulc.minTrustedFraction)
leth.blockchain.DisableCheckFreq()
}
return leth, nil
}
@@ -234,6 +226,11 @@ func (s *LightEthereum) APIs() []rpc.API {
Version: "1.0",
Service: s.netRPCService,
Public: true,
}, {
Namespace: "les",
Version: "1.0",
Service: NewPrivateLightAPI(&s.lesCommons, s.protocolManager.reg),
Public: false,
},
}...)
}
@@ -288,3 +285,12 @@ func (s *LightEthereum) Stop() error {
return nil
}
// SetClient sets the rpc client and binds the registrar contract.
func (s *LightEthereum) SetContractBackend(backend bind.ContractBackend) {
// Short circuit if registrar is nil
if s.protocolManager.reg == nil {
return
}
s.protocolManager.reg.start(backend)
}