573 lines
23 KiB
Nim
573 lines
23 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2024 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.push raises: [].}
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import
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stew/results,
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std/sequtils,
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chronicles,
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metrics,
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../spec/network,
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../spec/eip7594_helpers,
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../consensus_object_pools/spec_cache,
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../gossip_processing/[
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eth2_processor,
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block_processor],
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../networking/eth2_network,
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./activity_metrics,
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../spec/datatypes/deneb
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from ../spec/state_transition_block import validate_blobs
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export eth2_processor, eth2_network
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logScope:
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topics = "message_router"
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declareCounter beacon_voluntary_exits_sent,
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"Number of beacon voluntary sent by this node"
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declareCounter beacon_attester_slashings_sent,
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"Number of beacon attester slashings sent by this node"
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declareCounter beacon_proposer_slashings_sent,
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"Number of beacon proposer slashings sent by this node"
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type
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MessageRouter* = object
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## The message router is responsible for routing messages produced by
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## attached validators or received via REST.
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##
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## Message routing does 3 things:
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##
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## * perform a "quick" sanity check of the message similar to gossip
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## processing - regardless where the message comes from, this check is
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## done so as to protect the internal state of the beacon node
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## * broadcast the message to the network - in general, the aim is to start
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## the broadcasting as soon as possible without risking that the node
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## gets descored
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## * update the internal state of the beacon node with the data in the
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## message - for example add a block to the dag or an attestation to the
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## attestation pool and fork choice - as a consequence, the message will
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## also be published to event subscribers
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##
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## Because the message router produces messages that will be gossiped, we
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## run the messages through the same validation as incoming gossip messages.
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##
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## In most cases, processing of valid messages is identical to that done
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## for gossip - blocks in particular however skip the queue.
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processor*: ref Eth2Processor
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network*: Eth2Node
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# TODO this belongs somewhere else, ie sync committee pool
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onSyncCommitteeMessage*: proc(slot: Slot) {.gcsafe, raises: [].}
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func isGoodForSending(validationResult: ValidationRes): bool =
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# When routing messages from REST, it's possible that these have already
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# been received via gossip (because they might have been sent to multiple
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# beacon nodes, as is the case with Vouch) - thus, we treat `IGNORE`
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# as success as far as further processing goes. `libp2p` however will not
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# re-broadcast the message as it already exists in its cache.
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validationResult.isOk() or
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validationResult.error[0] == ValidationResult.Ignore
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template dag(router: MessageRouter): ChainDAGRef =
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router.processor[].dag
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template quarantine(router: MessageRouter): ref Quarantine =
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router.processor[].quarantine
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template blockProcessor(router: MessageRouter): ref BlockProcessor =
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router.processor[].blockProcessor
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template getCurrentBeaconTime(router: MessageRouter): BeaconTime =
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router.processor[].getCurrentBeaconTime()
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type RouteBlockResult = Result[Opt[BlockRef], string]
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proc routeSignedBeaconBlock*(
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router: ref MessageRouter, blck: ForkySignedBeaconBlock,
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blobsOpt: Opt[seq[BlobSidecar]]):
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Future[RouteBlockResult] {.async: (raises: [CancelledError]).} =
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## Validate and broadcast beacon block, then add it to the block database
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## Returns the new Head when block is added successfully to dag, none when
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## block passes validation but is not added, and error otherwise
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let wallTime = router[].getCurrentBeaconTime()
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# Start with a quick gossip validation check such that broadcasting the
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# block doesn't get the node into trouble
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block:
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let res = validateBeaconBlock(
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router[].dag, router[].quarantine, blck, wallTime, {})
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if not res.isGoodForSending():
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warn "Block failed validation",
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blockRoot = shortLog(blck.root), blck = shortLog(blck.message),
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signature = shortLog(blck.signature), error = res.error()
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return err($(res.error()[1]))
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when typeof(blck).kind >= ConsensusFork.Deneb:
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if blobsOpt.isSome:
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let blobs = blobsOpt.get()
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let kzgCommits = blck.message.body.blob_kzg_commitments.asSeq
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if blobs.len > 0 or kzgCommits.len > 0:
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let res = validate_blobs(
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kzgCommits,
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blobs.mapIt(KzgBlob(bytes: it.blob)),
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blobs.mapIt(it.kzg_proof))
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if res.isErr():
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warn "blobs failed validation",
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blockRoot = shortLog(blck.root),
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blobs = shortLog(blobs),
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blck = shortLog(blck.message),
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signature = shortLog(blck.signature),
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msg = res.error()
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return err(res.error())
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let
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sendTime = router[].getCurrentBeaconTime()
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delay = sendTime - blck.message.slot.block_deadline()
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# The block (and blobs, if present) passed basic gossip validation
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# - we can "safely" broadcast it now. In fact, per the spec, we
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# should broadcast it even if it later fails to apply to our
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# state.
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let res = await router[].network.broadcastBeaconBlock(blck)
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if res.isOk():
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beacon_blocks_sent.inc()
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beacon_blocks_sent_delay.observe(delay.toFloatSeconds())
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notice "Block sent",
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blockRoot = shortLog(blck.root), blck = shortLog(blck.message),
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signature = shortLog(blck.signature), delay
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else: # "no broadcast" is not a fatal error
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notice "Block not sent",
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blockRoot = shortLog(blck.root), blck = shortLog(blck.message),
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signature = shortLog(blck.signature), error = res.error()
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# PREVENT PROPOSING BLOB SIDECARS IN PEERDAS DEVNET
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var blobRefs = Opt.none(BlobSidecars)
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if blobsOpt.isSome():
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let blobs = blobsOpt.get()
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var workers = newSeq[Future[SendResult]](blobs.len)
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for i in 0..<blobs.lenu64:
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let subnet_id = compute_subnet_for_blob_sidecar(i)
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workers[i] = router[].network.broadcastBlobSidecar(subnet_id, blobs[i])
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let allres = await allFinished(workers)
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for i in 0..<allres.len:
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let res = allres[i]
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doAssert res.finished()
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if res.failed():
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notice "Blob not sent",
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blob = shortLog(blobs[i]), error = res.error[]
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else:
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notice "Blob sent", blob = shortLog(blobs[i])
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blobRefs = Opt.some(blobs.mapIt(newClone(it)))
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var dataColumnRefs = Opt.none(DataColumnSidecars)
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when typeof(blck).kind >= ConsensusFork.Deneb:
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if blobsOpt.isSome():
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let blobs = blobsOpt.get()
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if blobs.len != 0:
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let dataColumnsOpt = newClone get_data_column_sidecars(blck, blobs.mapIt(KzgBlob(bytes: it.blob)))
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if not dataColumnsOpt[].isOk:
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debug "Issue with computing data column from blob bundle"
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let data_columns = dataColumnsOpt[].get()
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var das_workers = newSeq[Future[SendResult]](len(dataColumnsOpt[].get()))
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for i in 0..<data_columns.len:
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let subnet_id = compute_subnet_for_data_column_sidecar(uint64(i))
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das_workers[i] =
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router[].network.broadcastDataColumnSidecar(subnet_id, dataColumnsOpt[].get()[int(i)])
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let allres = await allFinished(das_workers)
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for i in 0..<allres.len:
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let res = allres[i]
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doAssert res.finished()
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if res.failed():
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notice "Data Columns not sent",
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data_column = shortLog(dataColumnsOpt[].get()[i]), error = res.error[]
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else:
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notice "Data columns sent", data_column = shortLog(dataColumnsOpt[].get()[i])
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dataColumnRefs = Opt.some(dataColumnsOpt[].get().mapIt(newClone(it)))
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let added = await router[].blockProcessor[].addBlock(
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MsgSource.api, ForkedSignedBeaconBlock.init(blck), blobRefs, dataColumnRefs)
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# The boolean we return tells the caller whether the block was integrated
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# into the chain
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if added.isErr():
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return if added.error() != VerifierError.Duplicate:
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warn "Unable to add routed block to block pool",
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blockRoot = shortLog(blck.root), blck = shortLog(blck.message),
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signature = shortLog(blck.signature), err = added.error()
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ok(Opt.none(BlockRef))
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else:
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# If it's duplicate, there's an existing BlockRef to return. The block
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# shouldn't be finalized already because that requires a couple epochs
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# before occurring, so only check non-finalized resolved blockrefs.
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let blockRef = router[].dag.getBlockRef(blck.root)
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if blockRef.isErr:
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warn "Unable to add routed duplicate block to block pool",
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blockRoot = shortLog(blck.root), blck = shortLog(blck.message),
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signature = shortLog(blck.signature), err = added.error()
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ok(blockRef)
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let blockRef = router[].dag.getBlockRef(blck.root)
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if blockRef.isErr:
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warn "Block finalised while waiting for block processor",
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blockRoot = shortLog(blck.root), blck = shortLog(blck.message),
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signature = shortLog(blck.signature)
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ok(blockRef)
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proc routeAttestation*(
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router: ref MessageRouter,
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attestation: phase0.Attestation | electra.Attestation,
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subnet_id: SubnetId, checkSignature: bool):
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Future[SendResult] {.async: (raises: [CancelledError]).} =
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## Process and broadcast attestation - processing will register the it with
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## the attestation pool
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block:
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let res = await router[].processor.processAttestation(
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MsgSource.api, attestation, subnet_id, checkSignature)
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if not res.isGoodForSending:
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warn "Attestation failed validation",
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attestation = shortLog(attestation), error = res.error()
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return err(res.error()[1])
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let
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sendTime = router[].processor.getCurrentBeaconTime()
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delay = sendTime - attestation.data.slot.attestation_deadline()
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res = await router[].network.broadcastAttestation(subnet_id, attestation)
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if res.isOk():
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beacon_attestations_sent.inc()
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beacon_attestation_sent_delay.observe(delay.toFloatSeconds())
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info "Attestation sent",
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attestation = shortLog(attestation), delay, subnet_id
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else: # "no broadcast" is not a fatal error
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notice "Attestation not sent",
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attestation = shortLog(attestation), error = res.error()
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return ok()
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proc routeAttestation*(
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router: ref MessageRouter, attestation: phase0.Attestation | electra.Attestation):
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Future[SendResult] {.async: (raises: [CancelledError]).} =
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# Compute subnet, then route attestation
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let
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target = router[].dag.getBlockRef(attestation.data.target.root).valueOr:
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notice "Attempt to send attestation for unknown target",
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attestation = shortLog(attestation)
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return err(
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"Attempt to send attestation for unknown target")
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shufflingRef = router[].dag.getShufflingRef(
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target, attestation.data.target.epoch, false).valueOr:
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warn "Cannot construct EpochRef for attestation, skipping send - report bug",
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target = shortLog(target),
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attestation = shortLog(attestation)
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return
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committee_index =
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shufflingRef.get_committee_index(attestation.committee_index()).valueOr:
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notice "Invalid committee index in attestation",
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attestation = shortLog(attestation)
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return err("Invalid committee index in attestation")
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subnet_id = compute_subnet_for_attestation(
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get_committee_count_per_slot(shufflingRef), attestation.data.slot,
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committee_index)
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return await router.routeAttestation(
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attestation, subnet_id, checkSignature = true)
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proc routeSignedAggregateAndProof*(
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router: ref MessageRouter, proof: phase0.SignedAggregateAndProof,
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checkSignature = true):
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Future[SendResult] {.async: (raises: [CancelledError]).} =
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## Validate and broadcast aggregate
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block:
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# Because the aggregate was (most likely) produced by this beacon node,
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# we already know all attestations in it - we skip the coverage check so
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# that all processing happens anyway
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let res = await router[].processor.processSignedAggregateAndProof(
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MsgSource.api, proof, checkSignature = checkSignature,
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checkCover = false)
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if not res.isGoodForSending:
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warn "Aggregated attestation failed validation",
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attestation = shortLog(proof.message.aggregate),
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aggregator_index = proof.message.aggregator_index,
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signature = shortLog(proof.signature), error = res.error()
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return err(res.error()[1])
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let
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sendTime = router[].processor.getCurrentBeaconTime()
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delay = sendTime - proof.message.aggregate.data.slot.aggregate_deadline()
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res = await router[].network.broadcastAggregateAndProof(proof)
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if res.isOk():
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beacon_aggregates_sent.inc()
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info "Aggregated attestation sent",
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attestation = shortLog(proof.message.aggregate),
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aggregator_index = proof.message.aggregator_index,
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selection_proof = shortLog(proof.message.selection_proof),
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signature = shortLog(proof.signature), delay
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else: # "no broadcast" is not a fatal error
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notice "Aggregated attestation not sent",
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attestation = shortLog(proof.message.aggregate),
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aggregator_index = proof.message.aggregator_index,
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signature = shortLog(proof.signature), error = res.error()
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return ok()
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proc routeSyncCommitteeMessage*(
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router: ref MessageRouter, msg: SyncCommitteeMessage,
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subcommitteeIdx: SyncSubcommitteeIndex,
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checkSignature: bool):
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Future[SendResult] {.async: (raises: [CancelledError]).} =
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block:
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let res = await router[].processor.processSyncCommitteeMessage(
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MsgSource.api, msg, subcommitteeIdx, checkSignature)
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if not res.isGoodForSending:
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warn "Sync committee message failed validation",
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message = shortLog(msg), error = res.error()
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return err(res.error()[1])
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let
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sendTime = router[].processor.getCurrentBeaconTime()
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delay = sendTime - msg.slot.sync_committee_message_deadline()
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res = await router[].network.broadcastSyncCommitteeMessage(
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msg, subcommitteeIdx)
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if res.isOk():
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beacon_sync_committee_messages_sent.inc()
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beacon_sync_committee_message_sent_delay.observe(delay.toFloatSeconds())
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info "Sync committee message sent", message = shortLog(msg), delay
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else: # "no broadcast" is not a fatal error
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notice "Sync committee message not sent",
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message = shortLog(msg), error = res.error()
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if router[].onSyncCommitteeMessage != nil:
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router[].onSyncCommitteeMessage(msg.slot)
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return ok()
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proc routeSyncCommitteeMessages*(
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router: ref MessageRouter, msgs: seq[SyncCommitteeMessage]):
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Future[seq[SendResult]] {.async: (raises: [CancelledError]).} =
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return withState(router[].dag.headState):
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when consensusFork >= ConsensusFork.Altair:
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var statuses = newSeq[Opt[SendResult]](len(msgs))
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let
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curPeriod = sync_committee_period(forkyState.data.slot)
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nextPeriod = curPeriod + 1
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let (keysCur, keysNxt) =
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block:
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var resCur: Table[uint64, int]
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var resNxt: Table[uint64, int]
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for index, msg in msgs:
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if msg.validator_index < lenu64(forkyState.data.validators):
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let msgPeriod = sync_committee_period(msg.slot + 1)
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if msgPeriod == curPeriod:
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resCur[msg.validator_index] = index
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elif msgPeriod == nextPeriod:
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resNxt[msg.validator_index] = index
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else:
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statuses[index] = Opt.some(
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SendResult.err("Message's slot out of state's head range"))
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else:
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statuses[index] = Opt.some(
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SendResult.err("Incorrect validator's index"))
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if (len(resCur) == 0) and (len(resNxt) == 0):
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return statuses.mapIt(it.get())
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(resCur, resNxt)
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let (pending, indices) = block:
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var resFutures: seq[Future[SendResult]]
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var resIndices: seq[int]
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template headSyncCommittees(): auto = router[].dag.headSyncCommittees
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for subcommitteeIdx in SyncSubcommitteeIndex:
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for valKey in syncSubcommittee(
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headSyncCommittees.current_sync_committee, subcommitteeIdx):
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let index = keysCur.getOrDefault(uint64(valKey), -1)
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if index >= 0:
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resIndices.add(index)
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resFutures.add(router.routeSyncCommitteeMessage(
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msgs[index], subcommitteeIdx, true))
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for subcommitteeIdx in SyncSubcommitteeIndex:
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for valKey in syncSubcommittee(
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headSyncCommittees.next_sync_committee, subcommitteeIdx):
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let index = keysNxt.getOrDefault(uint64(valKey), -1)
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if index >= 0:
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resIndices.add(index)
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resFutures.add(router.routeSyncCommitteeMessage(
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msgs[index], subcommitteeIdx, true))
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(resFutures, resIndices)
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await allFutures(pending)
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for index, future in pending:
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if future.completed():
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let fres = future.value()
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if fres.isErr():
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statuses[indices[index]] = Opt.some(SendResult.err(fres.error()))
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else:
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statuses[indices[index]] = Opt.some(SendResult.ok())
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elif future.failed() or future.cancelled():
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let exc = future.error()
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debug "Unexpected failure while sending committee message",
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message = msgs[indices[index]], error = $exc.msg
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statuses[indices[index]] = Opt.some(SendResult.err(
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"Unexpected failure while sending committee message"))
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var res: seq[SendResult]
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for item in statuses:
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if item.isSome():
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res.add(item.get())
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else:
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res.add(SendResult.err("Message validator not in sync committee"))
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res
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else:
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var res: seq[SendResult]
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for _ in msgs:
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res.add(SendResult.err("Waiting for altair fork"))
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res
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proc routeSignedContributionAndProof*(
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router: ref MessageRouter,
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msg: SignedContributionAndProof,
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checkSignature: bool):
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Future[SendResult] {.async: (raises: [CancelledError]).} =
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block:
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let res = await router[].processor.processSignedContributionAndProof(
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MsgSource.api, msg)
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if not res.isGoodForSending:
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warn "Contribution failed validation",
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contribution = shortLog(msg.message.contribution),
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aggregator_index = msg.message.aggregator_index,
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selection_proof = shortLog(msg.message.selection_proof),
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signature = shortLog(msg.signature), error = res.error()
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return err(res.error()[1])
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let
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sendTime = router[].processor.getCurrentBeaconTime()
|
|
delay = sendTime - msg.message.contribution.slot.sync_contribution_deadline()
|
|
|
|
let res = await router[].network.broadcastSignedContributionAndProof(msg)
|
|
if res.isOk():
|
|
beacon_sync_committee_contributions_sent.inc()
|
|
info "Contribution sent",
|
|
contribution = shortLog(msg.message.contribution),
|
|
aggregator_index = msg.message.aggregator_index,
|
|
selection_proof = shortLog(msg.message.selection_proof),
|
|
signature = shortLog(msg.signature), delay
|
|
else: # "no broadcast" is not a fatal error
|
|
notice "Contribution not sent",
|
|
contribution = shortLog(msg.message.contribution),
|
|
aggregator_index = msg.message.aggregator_index,
|
|
selection_proof = shortLog(msg.message.selection_proof),
|
|
signature = shortLog(msg.signature), error = res.error()
|
|
|
|
return ok()
|
|
|
|
proc routeSignedVoluntaryExit*(
|
|
router: ref MessageRouter, exit: SignedVoluntaryExit):
|
|
Future[SendResult] {.async: (raises: [CancelledError]).} =
|
|
block:
|
|
let res =
|
|
router[].processor[].processSignedVoluntaryExit(MsgSource.api, exit)
|
|
if not res.isGoodForSending:
|
|
warn "Voluntary exit failed validation",
|
|
exit = shortLog(exit), error = res.error()
|
|
return err(res.error()[1])
|
|
|
|
let res = await router[].network.broadcastVoluntaryExit(exit)
|
|
if res.isOk():
|
|
beacon_voluntary_exits_sent.inc()
|
|
notice "Voluntary exit sent", exit = shortLog(exit)
|
|
else: # "no broadcast" is not a fatal error
|
|
notice "Voluntary exit not sent", exit = shortLog(exit), error = res.error()
|
|
|
|
return ok()
|
|
|
|
proc routeAttesterSlashing*(
|
|
router: ref MessageRouter, slashing: phase0.AttesterSlashing):
|
|
Future[SendResult] {.async: (raises: [CancelledError]).} =
|
|
block:
|
|
let res =
|
|
router[].processor[].processAttesterSlashing(MsgSource.api, slashing)
|
|
if not res.isGoodForSending:
|
|
warn "Attester slashing failed validation",
|
|
slashing = shortLog(slashing), error = res.error()
|
|
return err(res.error()[1])
|
|
|
|
let res = await router[].network.broadcastAttesterSlashing(slashing)
|
|
if res.isOk():
|
|
beacon_attester_slashings_sent.inc()
|
|
notice "Attester slashing sent", slashing = shortLog(slashing)
|
|
else: # "no broadcast" is not a fatal error
|
|
notice "Attester slashing not sent",
|
|
slashing = shortLog(slashing), error = res.error()
|
|
|
|
return ok()
|
|
|
|
proc routeProposerSlashing*(
|
|
router: ref MessageRouter, slashing: ProposerSlashing):
|
|
Future[SendResult] {.async: (raises: [CancelledError]).} =
|
|
block:
|
|
let res =
|
|
router[].processor[].processProposerSlashing(MsgSource.api, slashing)
|
|
if not res.isGoodForSending:
|
|
warn "Proposer slashing request failed validation",
|
|
slashing = shortLog(slashing), error = res.error()
|
|
return err(res.error()[1])
|
|
|
|
let res = await router[].network.broadcastProposerSlashing(slashing)
|
|
if res.isOk():
|
|
beacon_proposer_slashings_sent.inc()
|
|
notice "Proposer slashing sent", slashing = shortLog(slashing)
|
|
else: # "no broadcast" is not a fatal error
|
|
notice "Proposer slashing not sent",
|
|
slashing = shortLog(slashing), error = res.error()
|
|
|
|
return ok()
|
|
|
|
proc routeBlsToExecutionChange*(
|
|
router: ref MessageRouter,
|
|
bls_to_execution_change: SignedBLSToExecutionChange):
|
|
Future[SendResult] {.async: (raises: [CancelledError]).} =
|
|
block:
|
|
let res = await router.processor.processBlsToExecutionChange(
|
|
MsgSource.api, bls_to_execution_change)
|
|
if not res.isGoodForSending:
|
|
warn "BLS to execution change request failed validation",
|
|
change = shortLog(bls_to_execution_change),
|
|
error = res.error()
|
|
return err(res.error()[1])
|
|
|
|
if router[].getCurrentBeaconTime().slotOrZero.epoch <
|
|
router[].processor[].dag.cfg.CAPELLA_FORK_EPOCH:
|
|
# Broadcast hasn't failed, it just hasn't happened; desire seems to be to
|
|
# allow queuing up BLS to execution changes.
|
|
return ok()
|
|
|
|
let res = await router[].network.broadcastBlsToExecutionChange(
|
|
bls_to_execution_change)
|
|
if res.isOk():
|
|
notice "BLS to execution change sent",
|
|
bls_to_execution_change = shortLog(bls_to_execution_change)
|
|
else: # "no broadcast" is not a fatal error
|
|
notice "BLS to execution change not sent",
|
|
bls_to_execution_change = shortLog(bls_to_execution_change),
|
|
error = res.error()
|
|
|
|
return ok()
|