mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-23 11:57:18 +00:00
c8b8c6165d
* reject old objs * reject old attestation * add equality * fix formatting * add equal check for source * fix and add tests * change debug log
71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
package sync
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import (
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"context"
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"time"
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"github.com/gogo/protobuf/proto"
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"github.com/karlseguin/ccache"
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"github.com/pkg/errors"
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"github.com/prysmaticlabs/go-ssz"
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"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
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"github.com/prysmaticlabs/prysm/beacon-chain/p2p"
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ethpb "github.com/prysmaticlabs/prysm/proto/eth/v1alpha1"
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"github.com/prysmaticlabs/prysm/shared/bls"
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)
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// recentlySeenBlockRoots cache with max size of ~3Mib
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var recentlySeenRoots = ccache.New(ccache.Configure().MaxSize(100000))
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// validateBeaconBlockPubSub checks that the incoming block has a valid BLS signature.
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// Blocks that have already been seen are ignored. If the BLS signature is any valid signature,
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// this method rebroadcasts the message.
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func (r *RegularSync) validateBeaconBlockPubSub(ctx context.Context, msg proto.Message, p p2p.Broadcaster, fromSelf bool) (bool, error) {
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r.validateBlockLock.Lock()
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defer r.validateBlockLock.Unlock()
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m := msg.(*ethpb.BeaconBlock)
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blockRoot, err := ssz.SigningRoot(m)
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if err != nil {
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return false, errors.Wrap(err, "could not get signing root of beacon block")
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}
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r.pendingQueueLock.RLock()
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if r.seenPendingBlocks[blockRoot] {
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r.pendingQueueLock.RUnlock()
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return false, nil
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}
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r.pendingQueueLock.RUnlock()
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if recentlySeenRoots.Get(string(blockRoot[:])) != nil || r.db.HasBlock(ctx, blockRoot) {
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return false, nil
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}
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recentlySeenRoots.Set(string(blockRoot[:]), true /*value*/, 365*24*time.Hour /*TTL*/)
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if fromSelf {
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return false, nil
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}
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if err := helpers.VerifySlotTime(uint64(r.chain.GenesisTime().Unix()), m.Slot); err != nil {
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log.WithError(err).WithField("blockSlot", m.Slot).Warn("Rejecting incoming block.")
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return false, err
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}
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if r.chain.FinalizedCheckpt().Epoch > helpers.SlotToEpoch(m.Slot) {
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log.Debug("Block older than finalized checkpoint received,rejecting it")
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return false, nil
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}
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_, err = bls.SignatureFromBytes(m.Signature)
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if err == nil {
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p.Broadcast(ctx, m)
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}
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// We should not attempt to process blocks until fully synced, but propagation is OK.
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if r.initialSync.Syncing() {
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return false, nil
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}
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return err == nil, err
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}
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