78 lines
3.0 KiB
Go
78 lines
3.0 KiB
Go
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// Copyright 2019 The Waku Library Authors.
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//
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// The Waku library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The Waku library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty off
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the Waku library. If not, see <http://www.gnu.org/licenses/>.
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//
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// This software uses the go-ethereum library, which is licensed
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// under the GNU Lesser General Public Library, version 3 or any later.
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package waku
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import (
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"time"
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"github.com/ethereum/go-ethereum/crypto"
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)
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// Waku protocol parameters
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const (
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ProtocolVersion = uint64(0) // Protocol version number
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ProtocolVersionStr = "0" // The same, as a string
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ProtocolName = "waku" // Nickname of the protocol
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// Waku protocol message codes, according to https://github.com/vacp2p/specs/blob/master/waku.md
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statusCode = 0 // used in the handshake
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messagesCode = 1 // regular message
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statusUpdateCode = 22 // update of settings
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batchAcknowledgedCode = 11 // confirmation that batch of envelopes was received
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messageResponseCode = 12 // includes confirmation for delivery and information about errors
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p2pRequestCompleteCode = 125 // peer-to-peer message, used by Dapp protocol
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p2pRequestCode = 126 // peer-to-peer message, used by Dapp protocol
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p2pMessageCode = 127 // peer-to-peer message (to be consumed by the peer, but not forwarded any further)
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NumberOfMessageCodes = 128
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SizeMask = byte(3) // mask used to extract the size of payload size field from the flags
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signatureFlag = byte(4)
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TopicLength = 4 // in bytes
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signatureLength = crypto.SignatureLength // in bytes
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aesKeyLength = 32 // in bytes
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aesNonceLength = 12 // in bytes; for more info please see cipher.gcmStandardNonceSize & aesgcm.NonceSize()
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keyIDSize = 32 // in bytes
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BloomFilterSize = 64 // in bytes
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MaxTopicInterest = 10000
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flagsLength = 1
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EnvelopeHeaderLength = 20
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MaxMessageSize = uint32(10 * 1024 * 1024) // maximum accepted size of a message.
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DefaultMaxMessageSize = uint32(1024 * 1024)
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DefaultMinimumPoW = 0.2
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padSizeLimit = 256 // just an arbitrary number, could be changed without breaking the protocol
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messageQueueLimit = 1024
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expirationCycle = time.Second
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transmissionCycle = 300 * time.Millisecond
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DefaultTTL = 50 // seconds
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DefaultSyncAllowance = 10 // seconds
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MaxLimitInSyncMailRequest = 1000
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EnvelopeTimeNotSynced uint = iota + 1
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EnvelopeOtherError
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MaxLimitInMessagesRequest = 1000
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)
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