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all: remove ethash pow, only retain shims needed for consensus and tests (#27178)

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* all: remove ethash pow, only retain shims needed for consensus and tests

* all: thank you linter

* all: disallow launching Geth in legacy PoW mode

* cmd/env/internal/t8ntool: remove dangling ethash flag
This commit is contained in:
Péter Szilágyi
2023-05-03 12:58:39 +03:00
committed by GitHub
parent ac3418def6
commit dde2da0efb
57 changed files with 210 additions and 5484 deletions
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eth/downloader/downloader.go
+6 -21
View File
@@ -53,11 +53,9 @@ var (
reorgProtThreshold = 48 // Threshold number of recent blocks to disable mini reorg protection
reorgProtHeaderDelay = 2 // Number of headers to delay delivering to cover mini reorgs
fsHeaderCheckFrequency = 100 // Verification frequency of the downloaded headers during snap sync
fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected
fsHeaderForceVerify = 24 // Number of headers to verify before and after the pivot to accept it
fsHeaderContCheck = 3 * time.Second // Time interval to check for header continuations during state download
fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in snap sync
fsHeaderSafetyNet = 2048 // Number of headers to discard in case a chain violation is detected
fsHeaderContCheck = 3 * time.Second // Time interval to check for header continuations during state download
fsMinFullBlocks = 64 // Number of blocks to retrieve fully even in snap sync
)
var (
@@ -175,7 +173,7 @@ type LightChain interface {
GetTd(common.Hash, uint64) *big.Int
// InsertHeaderChain inserts a batch of headers into the local chain.
InsertHeaderChain([]*types.Header, int) (int, error)
InsertHeaderChain([]*types.Header) (int, error)
// SetHead rewinds the local chain to a new head.
SetHead(uint64) error
@@ -1381,19 +1379,6 @@ func (d *Downloader) processHeaders(origin uint64, td, ttd *big.Int, beaconMode
// In case of header only syncing, validate the chunk immediately
if mode == SnapSync || mode == LightSync {
// If we're importing pure headers, verify based on their recentness
var pivot uint64
d.pivotLock.RLock()
if d.pivotHeader != nil {
pivot = d.pivotHeader.Number.Uint64()
}
d.pivotLock.RUnlock()
frequency := fsHeaderCheckFrequency
if chunkHeaders[len(chunkHeaders)-1].Number.Uint64()+uint64(fsHeaderForceVerify) > pivot {
frequency = 1
}
// Although the received headers might be all valid, a legacy
// PoW/PoA sync must not accept post-merge headers. Make sure
// that any transition is rejected at this point.
@@ -1426,11 +1411,11 @@ func (d *Downloader) processHeaders(origin uint64, td, ttd *big.Int, beaconMode
}
}
if len(chunkHeaders) > 0 {
if n, err := d.lightchain.InsertHeaderChain(chunkHeaders, frequency); err != nil {
if n, err := d.lightchain.InsertHeaderChain(chunkHeaders); err != nil {
rollbackErr = err
// If some headers were inserted, track them as uncertain
if (mode == SnapSync || frequency > 1) && n > 0 && rollback == 0 {
if mode == SnapSync && n > 0 && rollback == 0 {
rollback = chunkHeaders[0].Number.Uint64()
}
log.Warn("Invalid header encountered", "number", chunkHeaders[n].Number, "hash", chunkHashes[n], "parent", chunkHeaders[n].ParentHash, "err", err)