49 lines
2.0 KiB
Nim
49 lines
2.0 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2020 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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import
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strformat,
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stew/byteutils,
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datatypes
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const
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topicBeaconBlocksSuffix* = "beacon_block/ssz"
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topicAttestationsSuffix* = "_beacon_attestation/ssz"
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topicVoluntaryExitsSuffix* = "voluntary_exit/ssz"
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topicProposerSlashingsSuffix* = "proposer_slashing/ssz"
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topicAttesterSlashingsSuffix* = "attester_slashing/ssz"
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topicAggregateAndProofsSuffix* = "beacon_aggregate_and_proof/ssz"
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# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/p2p-interface.md#configuration
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ATTESTATION_SUBNET_COUNT* = 64
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defaultEth2TcpPort* = 9000
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# This is not part of the spec yet!
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defaultEth2RpcPort* = 9090
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func getBeaconBlocksTopic*(forkDigest: ForkDigest): string =
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&"/eth2/{toHex forkDigest}/{topicBeaconBlocksSuffix}"
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func getVoluntaryExistsTopic*(forkDigest: ForkDigest): string =
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&"/eth2/{toHex forkDigest}/{topicVoluntaryExitsSuffix}"
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func getProposerSlashingsTopic*(forkDigest: ForkDigest): string =
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&"/eth2/{toHex forkDigest}/{topicProposerSlashingsSuffix}"
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func getAttesterSlashingsTopic*(forkDigest: ForkDigest): string =
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&"/eth2/{toHex forkDigest}/{topicAttesterSlashingsSuffix}"
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func getAggregateAndProofsTopic*(forkDigest: ForkDigest): string =
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&"/eth2/{toHex forkDigest}/{topicAggregateAndProofsSuffix}"
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func getAttestationTopic*(forkDigest: ForkDigest, committeeIndex: uint64): string =
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# https://github.com/ethereum/eth2.0-specs/blob/v0.11.0/specs/phase0/validator.md#broadcast-attestation
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let topicIndex = committeeIndex mod ATTESTATION_SUBNET_COUNT
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&"/eth2/{toHex forkDigest}/committee_index{topicIndex}{topicAttestationsSuffix}"
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