mirror of
https://github.com/lightningnetwork/lnd.git
synced 2024-11-20 10:39:01 +01:00
0b4e03f5fc
With go 1.17 a change to the build flags was implemented: https://go.googlesource.com/proposal/+/master/design/draft-gobuild.md The formatter now automatically adds the forward-compatible build tag format and the linter checks for them, so we need to include them in our code.
52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
//go:build gofuzz
|
|
// +build gofuzz
|
|
|
|
package brontidefuzz
|
|
|
|
import (
|
|
"github.com/lightningnetwork/lnd/brontide"
|
|
)
|
|
|
|
// Fuzz_random_actthree is a go-fuzz harness for ActThree in the brontide
|
|
// handshake.
|
|
func Fuzz_random_actthree(data []byte) int {
|
|
// Check if data is large enough.
|
|
if len(data) < brontide.ActThreeSize {
|
|
return 1
|
|
}
|
|
|
|
// This will return brontide machines with random keys.
|
|
initiator, responder := getBrontideMachines()
|
|
|
|
// Generate ActOne and send to the responder.
|
|
actOne, err := initiator.GenActOne()
|
|
if err != nil {
|
|
nilAndPanic(initiator, responder, err)
|
|
}
|
|
|
|
// Receiving ActOne should succeed, so we panic on error.
|
|
if err := responder.RecvActOne(actOne); err != nil {
|
|
nilAndPanic(initiator, responder, err)
|
|
}
|
|
|
|
// Generate ActTwo - this is not sent to the initiator because nothing is
|
|
// done with the initiator after this point and it would slow down fuzzing.
|
|
// GenActTwo needs to be called to set the appropriate state in the
|
|
// responder machine.
|
|
_, err = responder.GenActTwo()
|
|
if err != nil {
|
|
nilAndPanic(initiator, responder, err)
|
|
}
|
|
|
|
// Copy data into [ActThreeSize]byte.
|
|
var actThree [brontide.ActThreeSize]byte
|
|
copy(actThree[:], data)
|
|
|
|
// Responder receives ActThree, should fail on the MAC check.
|
|
if err := responder.RecvActThree(actThree); err == nil {
|
|
nilAndPanic(initiator, responder, nil)
|
|
}
|
|
|
|
return 1
|
|
}
|