mirror of https://github.com/status-im/nim-eth.git
47 lines
1.7 KiB
Nim
47 lines
1.7 KiB
Nim
import
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std/net,
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testutils/fuzzing, chronicles, nimcrypto/keccak,
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../../../eth/p2p/[discovery, enode], ../../../eth/[keys, rlp],
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../../p2p/p2p_test_helper
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const DefaultListeningPort = 30303
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var targetNode: DiscoveryProtocol
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proc packData(payload: openArray[byte], pk: PrivateKey): seq[byte] =
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let
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payloadSeq = @payload
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signature = @(pk.sign(payload).toRaw())
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msgHash = keccak256.digest(signature & payloadSeq)
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result = @(msgHash.data) & signature & payloadSeq
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init:
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# Set up a discovery node, this is the node we target when fuzzing
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var
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targetNodeKey = PrivateKey.fromHex("a2b50376a79b1a8c8a3296485572bdfbf54708bb46d3c25d73d2723aaaf6a617")[]
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targetNodeAddr = localAddress(DefaultListeningPort)
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targetNode = newDiscoveryProtocol(
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targetNodeKey, targetNodeAddr, @[], Port(DefaultListeningPort))
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# Create the transport as else replies on the messages send will fail.
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targetNode.open()
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test:
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var
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msg: seq[byte]
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address: Address
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# Sending raw payload is possible but won't find us much. We need a hash and
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# a signature, and without it there is a big chance it will always result in
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# "Wrong msg mac from" error.
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let nodeKey = PrivateKey.fromHex("a2b50376a79b1a8c8a3296485572bdfbf54708bb46d3c25d73d2723aaaf6a618")[]
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msg = packData(payload, nodeKey)
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address = localAddress(DefaultListeningPort + 1)
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try:
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targetNode.receive(address, msg)
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# These errors are also caught in `processClient` in discovery.nim
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# TODO: move them a layer down in discovery so we can do a cleaner test there?
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except RlpError as e:
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debug "Receive failed", err = e.msg
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except DiscProtocolError as e:
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debug "Receive failed", err = e.msg
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