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les, light: add CHT data to NodeInfo

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This commit is contained in:
Zsolt Felfoldi 2018-04-19 23:12:43 +02:00
parent f70f63949d
commit d487adf456
3 changed files with 50 additions and 30 deletions
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20
les/handler.go
View file

@ -1211,6 +1211,7 @@ type NodeInfo struct {
Genesis common.Hash `json:"genesis"` // SHA3 hash of the host's genesis block
Config *params.ChainConfig `json:"config"` // Chain configuration for the fork rules
Head common.Hash `json:"head"` // SHA3 hash of the host's best owned block
CHT light.TrustedCheckpoint `json:"cht"` // Trused CHT checkpoint for fast catchup
}
// NodeInfo retrieves some protocol metadata about the running host node.
@ -1218,12 +1219,31 @@ func (self *ProtocolManager) NodeInfo() *NodeInfo {
head := self.blockchain.CurrentHeader()
hash := head.Hash()
var cht light.TrustedCheckpoint
sections, _, sectionHead := self.odr.ChtIndexer().Sections()
sections2, _, sectionHead2 := self.odr.BloomTrieIndexer().Sections()
if sections2 < sections {
sections = sections2
sectionHead = sectionHead2
}
if sections > 0 {
sectionIndex := sections - 1
cht = light.TrustedCheckpoint{
SectionIdx: sectionIndex,
SectionHead: sectionHead,
CHTRoot: light.GetChtV2Root(self.chainDb, sectionIndex, sectionHead),
BloomRoot: light.GetBloomTrieRoot(self.chainDb, sectionIndex, sectionHead),
}
}
return &NodeInfo{
Network: self.networkId,
Difficulty: self.blockchain.GetTd(hash, head.Number.Uint64()),
Genesis: self.blockchain.Genesis().Hash(),
Config: self.blockchain.Config(),
Head: hash,
CHT: cht,
}
}

14
light/lightchain.go
View file

@ -116,19 +116,19 @@ func NewLightChain(odr OdrBackend, config *params.ChainConfig, engine consensus.
}
// addTrustedCheckpoint adds a trusted checkpoint to the blockchain
func (self *LightChain) addTrustedCheckpoint(cp trustedCheckpoint) {
func (self *LightChain) addTrustedCheckpoint(cp TrustedCheckpoint) {
if self.odr.ChtIndexer() != nil {
StoreChtRoot(self.chainDb, cp.sectionIdx, cp.sectionHead, cp.chtRoot)
self.odr.ChtIndexer().AddKnownSectionHead(cp.sectionIdx, cp.sectionHead)
StoreChtRoot(self.chainDb, cp.SectionIdx, cp.SectionHead, cp.CHTRoot)
self.odr.ChtIndexer().AddKnownSectionHead(cp.SectionIdx, cp.SectionHead)
}
if self.odr.BloomTrieIndexer() != nil {
StoreBloomTrieRoot(self.chainDb, cp.sectionIdx, cp.sectionHead, cp.bloomTrieRoot)
self.odr.BloomTrieIndexer().AddKnownSectionHead(cp.sectionIdx, cp.sectionHead)
StoreBloomTrieRoot(self.chainDb, cp.SectionIdx, cp.SectionHead, cp.BloomRoot)
self.odr.BloomTrieIndexer().AddKnownSectionHead(cp.SectionIdx, cp.SectionHead)
}
if self.odr.BloomIndexer() != nil {
self.odr.BloomIndexer().AddKnownSectionHead(cp.sectionIdx, cp.sectionHead)
self.odr.BloomIndexer().AddKnownSectionHead(cp.SectionIdx, cp.SectionHead)
}
log.Info("Added trusted checkpoint", "chain", cp.name, "block", (cp.sectionIdx+1)*CHTFrequencyClient-1, "hash", cp.sectionHead)
log.Info("Added trusted checkpoint", "chain", cp.name, "block", (cp.SectionIdx+1)*CHTFrequencyClient-1, "hash", cp.SectionHead)
}
func (self *LightChain) getProcInterrupt() bool {

30
light/postprocess.go
View file

@ -49,35 +49,35 @@ const (
HelperTrieProcessConfirmations = 256 // number of confirmations before a HelperTrie is generated
)
// trustedCheckpoint represents a set of post-processed trie roots (CHT and BloomTrie) associated with
// TrustedCheckpoint represents a set of post-processed trie roots (CHT and BloomTrie) associated with
// the appropriate section index and head hash. It is used to start light syncing from this checkpoint
// and avoid downloading the entire header chain while still being able to securely access old headers/logs.
type trustedCheckpoint struct {
type TrustedCheckpoint struct {
name string
sectionIdx uint64
sectionHead, chtRoot, bloomTrieRoot common.Hash
SectionIdx uint64
SectionHead, CHTRoot, BloomRoot common.Hash
}
var (
mainnetCheckpoint = trustedCheckpoint{
mainnetCheckpoint = TrustedCheckpoint{
name: "mainnet",
sectionIdx: 179,
sectionHead: common.HexToHash("ae778e455492db1183e566fa0c67f954d256fdd08618f6d5a393b0e24576d0ea"),
chtRoot: common.HexToHash("646b338f9ca74d936225338916be53710ec84020b89946004a8605f04c817f16"),
bloomTrieRoot: common.HexToHash("d0f978f5dbc86e5bf931d8dd5b2ecbebbda6dc78f8896af6a27b46a3ced0ac25"),
SectionIdx: 179,
SectionHead: common.HexToHash("ae778e455492db1183e566fa0c67f954d256fdd08618f6d5a393b0e24576d0ea"),
CHTRoot: common.HexToHash("646b338f9ca74d936225338916be53710ec84020b89946004a8605f04c817f16"),
BloomRoot: common.HexToHash("d0f978f5dbc86e5bf931d8dd5b2ecbebbda6dc78f8896af6a27b46a3ced0ac25"),
}
ropstenCheckpoint = trustedCheckpoint{
ropstenCheckpoint = TrustedCheckpoint{
name: "ropsten",
sectionIdx: 107,
sectionHead: common.HexToHash("e1988f95399debf45b873e065e5cd61b416ef2e2e5deec5a6f87c3127086e1ce"),
chtRoot: common.HexToHash("15cba18e4de0ab1e95e202625199ba30147aec8b0b70384b66ebea31ba6a18e0"),
bloomTrieRoot: common.HexToHash("e00fa6389b2e597d9df52172cd8e936879eed0fca4fa59db99e2c8ed682562f2"),
SectionIdx: 107,
SectionHead: common.HexToHash("e1988f95399debf45b873e065e5cd61b416ef2e2e5deec5a6f87c3127086e1ce"),
CHTRoot: common.HexToHash("15cba18e4de0ab1e95e202625199ba30147aec8b0b70384b66ebea31ba6a18e0"),
BloomRoot: common.HexToHash("e00fa6389b2e597d9df52172cd8e936879eed0fca4fa59db99e2c8ed682562f2"),
}
)
// trustedCheckpoints associates each known checkpoint with the genesis hash of the chain it belongs to
var trustedCheckpoints = map[common.Hash]trustedCheckpoint{
var trustedCheckpoints = map[common.Hash]TrustedCheckpoint{
params.MainnetGenesisHash: mainnetCheckpoint,
params.TestnetGenesisHash: ropstenCheckpoint,
}