mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-23 13:38:35 +00:00
d4c3a17883
All scripts are run in VM, so it's there to tell us about script hashes involved and it must be used instead of nep5ScriptHash kludge.
164 lines
8.4 KiB
Go
164 lines
8.4 KiB
Go
package core
|
|
|
|
/*
|
|
Interops are designed to run under VM's execute() panic protection, so it's OK
|
|
for them to do things like
|
|
smth := v.Estack().Pop().Bytes()
|
|
even though technically Pop() can return a nil pointer.
|
|
*/
|
|
|
|
import (
|
|
"sort"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop/crypto"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop/enumerator"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop/iterator"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop/json"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/interop/runtime"
|
|
"github.com/nspcc-dev/neo-go/pkg/core/native"
|
|
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
|
|
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm"
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
|
|
)
|
|
|
|
// SpawnVM returns a VM with script getter and interop functions set
|
|
// up for current blockchain.
|
|
func SpawnVM(ic *interop.Context) *vm.VM {
|
|
vm := vm.NewWithTrigger(ic.Trigger)
|
|
vm.RegisterInteropGetter(getSystemInterop(ic))
|
|
vm.RegisterInteropGetter(getNeoInterop(ic))
|
|
if ic.Chain != nil {
|
|
vm.RegisterInteropGetter(ic.Chain.(*Blockchain).contracts.GetNativeInterop(ic))
|
|
}
|
|
ic.ScriptGetter = vm
|
|
return vm
|
|
}
|
|
|
|
// getSystemInterop returns matching interop function from the System namespace
|
|
// for a given id in the current context.
|
|
func getSystemInterop(ic *interop.Context) vm.InteropGetterFunc {
|
|
return getInteropFromSlice(ic, systemInterops)
|
|
}
|
|
|
|
// getNeoInterop returns matching interop function from the Neo and AntShares
|
|
// namespaces for a given id in the current context.
|
|
func getNeoInterop(ic *interop.Context) vm.InteropGetterFunc {
|
|
return getInteropFromSlice(ic, neoInterops)
|
|
}
|
|
|
|
// getInteropFromSlice returns matching interop function from the given slice of
|
|
// interop functions in the current context.
|
|
func getInteropFromSlice(ic *interop.Context, slice []interop.Function) func(uint32) *vm.InteropFuncPrice {
|
|
return func(id uint32) *vm.InteropFuncPrice {
|
|
n := sort.Search(len(slice), func(i int) bool {
|
|
return slice[i].ID >= id
|
|
})
|
|
if n < len(slice) && slice[n].ID == id {
|
|
return &vm.InteropFuncPrice{
|
|
Func: func(v *vm.VM) error {
|
|
return slice[n].Func(ic, v)
|
|
},
|
|
Price: slice[n].Price,
|
|
RequiredFlags: slice[n].RequiredFlags,
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// All lists are sorted, keep 'em this way, please.
|
|
var systemInterops = []interop.Function{
|
|
{Name: "System.Binary.Deserialize", Func: runtimeDeserialize, Price: 500000},
|
|
{Name: "System.Binary.Serialize", Func: runtimeSerialize, Price: 100000},
|
|
{Name: "System.Blockchain.GetBlock", Func: bcGetBlock, Price: 2500000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Blockchain.GetContract", Func: bcGetContract, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Blockchain.GetHeight", Func: bcGetHeight, Price: 400,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Blockchain.GetTransaction", Func: bcGetTransaction, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Blockchain.GetTransactionFromBlock", Func: bcGetTransactionFromBlock, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Blockchain.GetTransactionHeight", Func: bcGetTransactionHeight, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Contract.Call", Func: contractCall, Price: 1000000,
|
|
AllowedTriggers: trigger.System | trigger.Application, RequiredFlags: smartcontract.AllowCall},
|
|
{Name: "System.Contract.CallEx", Func: contractCallEx, Price: 1000000,
|
|
AllowedTriggers: trigger.System | trigger.Application, RequiredFlags: smartcontract.AllowCall},
|
|
{Name: "System.Contract.Create", Func: contractCreate, Price: 0,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates},
|
|
{Name: "System.Contract.CreateStandardAccount", Func: contractCreateStandardAccount, Price: 10000},
|
|
{Name: "System.Contract.Destroy", Func: contractDestroy, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates},
|
|
{Name: "System.Contract.IsStandard", Func: contractIsStandard, Price: 30000},
|
|
{Name: "System.Contract.Update", Func: contractUpdate, Price: 0,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates},
|
|
{Name: "System.Enumerator.Concat", Func: enumerator.Concat, Price: 400},
|
|
{Name: "System.Enumerator.Create", Func: enumerator.Create, Price: 400},
|
|
{Name: "System.Enumerator.Next", Func: enumerator.Next, Price: 1000000},
|
|
{Name: "System.Enumerator.Value", Func: enumerator.Value, Price: 400},
|
|
{Name: "System.Iterator.Concat", Func: iterator.Concat, Price: 400},
|
|
{Name: "System.Iterator.Create", Func: iterator.Create, Price: 400},
|
|
{Name: "System.Iterator.Key", Func: iterator.Key, Price: 400},
|
|
{Name: "System.Iterator.Keys", Func: iterator.Keys, Price: 400},
|
|
{Name: "System.Iterator.Values", Func: iterator.Values, Price: 400},
|
|
{Name: "System.Json.Deserialize", Func: json.Deserialize, Price: 500000},
|
|
{Name: "System.Json.Serialize", Func: json.Serialize, Price: 100000},
|
|
{Name: "System.Runtime.CheckWitness", Func: runtime.CheckWitness, Price: 30000},
|
|
{Name: "System.Runtime.GasLeft", Func: runtime.GasLeft, Price: 400},
|
|
{Name: "System.Runtime.GetCallingScriptHash", Func: engineGetCallingScriptHash, Price: 400},
|
|
{Name: "System.Runtime.GetEntryScriptHash", Func: engineGetEntryScriptHash, Price: 400},
|
|
{Name: "System.Runtime.GetExecutingScriptHash", Func: engineGetExecutingScriptHash, Price: 400},
|
|
{Name: "System.Runtime.GetInvocationCounter", Func: runtime.GetInvocationCounter, Price: 400},
|
|
{Name: "System.Runtime.GetScriptContainer", Func: engineGetScriptContainer, Price: 250},
|
|
{Name: "System.Runtime.GetTime", Func: runtimeGetTime, Price: 250,
|
|
AllowedTriggers: trigger.Application},
|
|
{Name: "System.Runtime.GetTrigger", Func: runtimeGetTrigger, Price: 250},
|
|
{Name: "System.Runtime.Log", Func: runtimeLog, Price: 1000000, RequiredFlags: smartcontract.AllowNotify},
|
|
{Name: "System.Runtime.Notify", Func: runtimeNotify, Price: 1000000, RequiredFlags: smartcontract.AllowNotify},
|
|
{Name: "System.Runtime.Platform", Func: runtimePlatform, Price: 250},
|
|
{Name: "System.Storage.Delete", Func: storageDelete, Price: StoragePrice,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates},
|
|
{Name: "System.Storage.Find", Func: storageFind, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Storage.Get", Func: storageGet, Price: 1000000,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Storage.GetContext", Func: storageGetContext, Price: 400,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Storage.GetReadOnlyContext", Func: storageGetReadOnlyContext, Price: 400,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
{Name: "System.Storage.Put", Func: storagePut, Price: 0,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates}, // These don't have static price in C# code.
|
|
{Name: "System.Storage.PutEx", Func: storagePutEx, Price: 0,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates},
|
|
{Name: "System.Storage.AsReadOnly", Func: storageContextAsReadOnly, Price: 400,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowStates},
|
|
}
|
|
|
|
var neoInterops = []interop.Function{
|
|
{Name: "Neo.Crypto.ECDsaVerify", Func: crypto.ECDSAVerify, Price: crypto.ECDSAVerifyPrice},
|
|
{Name: "Neo.Crypto.ECDsaCheckMultiSig", Func: crypto.ECDSACheckMultisig, Price: 0},
|
|
{Name: "Neo.Crypto.SHA256", Func: crypto.Sha256, Price: 1000000},
|
|
{Name: "Neo.Native.Deploy", Func: native.Deploy, Price: 0,
|
|
AllowedTriggers: trigger.Application, RequiredFlags: smartcontract.AllowModifyStates},
|
|
}
|
|
|
|
// initIDinInteropsSlice initializes IDs from names in one given
|
|
// Function slice and then sorts it.
|
|
func initIDinInteropsSlice(iops []interop.Function) {
|
|
for i := range iops {
|
|
iops[i].ID = emit.InteropNameToID([]byte(iops[i].Name))
|
|
}
|
|
sort.Slice(iops, func(i, j int) bool {
|
|
return iops[i].ID < iops[j].ID
|
|
})
|
|
}
|
|
|
|
// init initializes IDs in the global interop slices.
|
|
func init() {
|
|
initIDinInteropsSlice(systemInterops)
|
|
initIDinInteropsSlice(neoInterops)
|
|
}
|