40 lines
988 B
Go
40 lines
988 B
Go
// +build gofuzz
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package brontidefuzz
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import (
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"github.com/lightningnetwork/lnd/brontide"
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)
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// Fuzz_static_acttwo is a go-fuzz harness for ActTwo in the brontide
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// handshake.
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func Fuzz_static_acttwo(data []byte) int {
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// Check if data is large enough.
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if len(data) < brontide.ActTwoSize {
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return -1
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}
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// This will return brontide machines with static keys.
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initiator, _ := getStaticBrontideMachines()
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// Generate ActOne - this isn't sent to the responder because nothing is
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// done with the responder machine and this would slow down fuzzing.
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// GenActOne needs to be called to set the appropriate state in the initiator
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// machine.
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_, err := initiator.GenActOne()
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if err != nil {
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nilAndPanic(initiator, nil, err)
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}
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// Copy data into [ActTwoSize]byte.
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var actTwo [brontide.ActTwoSize]byte
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copy(actTwo[:], data)
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// Initiator receives ActTwo, should fail.
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if err := initiator.RecvActTwo(actTwo); err == nil {
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nilAndPanic(initiator, nil, nil)
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}
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return 1
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}
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