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core: doesn't allow to deploy contract with invalid method offset

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This commit partially reverts 16bf7c1426.
This commit is contained in:
Anna Shaleva 2022-06-06 11:41:28 +03:00
parent e5c8d6278b
commit a5b5f88fe2
2 changed files with 3 additions and 11 deletions
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2
pkg/core/native/management.go
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@ -614,7 +614,7 @@ func checkScriptAndMethods(script []byte, methods []manifest.Method) error {
offsets := bitfield.New(l)
for i := range methods {
if methods[i].Offset >= l {
continue
return fmt.Errorf("method %s/%d: offset is out of the script range", methods[i].Name, len(methods[i].Parameters))
}
offsets.Set(methods[i].Offset)
}

12
pkg/core/native/native_test/management_test.go
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@ -135,19 +135,11 @@ func TestManagement_ContractDeploy(t *testing.T) {
badManifest := cs1.Manifest
badManifest.ABI.Methods = make([]manifest.Method, len(cs1.Manifest.ABI.Methods))
copy(badManifest.ABI.Methods, cs1.Manifest.ABI.Methods)
badManifest.ABI.Methods[0].Offset = 100500 // out of bounds, but it's OK, this method will not be checked then.
badManifest.ABI.Methods[0].Offset = 100500 // out of bounds
manifB, err := json.Marshal(&badManifest)
require.NoError(t, err)
tx := c.PrepareInvokeNoSign(t, "deploy", nefBytes, manifB)
tx.Signers = []transaction.Signer{{}} // Need dummy signer to deploy.
b := c.NewUnsignedBlock(t, tx)
ic := c.Chain.GetTestVM(trigger.Application, tx, b)
t.Cleanup(ic.Finalize)
ic.VM.LoadWithFlags(tx.Script, callflag.All)
err = ic.VM.Run()
require.NoError(t, err)
managementInvoker.InvokeFail(t, "method add/2: offset is out of the script range", "deploy", nefBytes, manifB)
})
t.Run("bad methods in manifest 2", func(t *testing.T) {
var badManifest = cs1.Manifest