287 lines
8.7 KiB
Go
287 lines
8.7 KiB
Go
package chaos
|
|
|
|
import (
|
|
"github.com/filecoin-project/go-address"
|
|
"github.com/filecoin-project/go-state-types/abi"
|
|
"github.com/filecoin-project/go-state-types/exitcode"
|
|
"github.com/filecoin-project/specs-actors/actors/builtin"
|
|
"github.com/filecoin-project/specs-actors/actors/runtime"
|
|
"github.com/ipfs/go-cid"
|
|
)
|
|
|
|
//go:generate go run ./gen
|
|
|
|
// Actor is a chaos actor. It implements a variety of illegal behaviours that
|
|
// trigger violations of VM invariants. These behaviours are not found in
|
|
// production code, but are important to test that the VM constraints are
|
|
// properly enforced.
|
|
//
|
|
// The chaos actor is being incubated and its behaviour and ABI be standardised
|
|
// shortly. Its CID is ChaosActorCodeCID, and its singleton address is 98 (Address).
|
|
// It cannot be instantiated via the init actor, and its constructor panics.
|
|
//
|
|
// Test vectors relying on the chaos actor being deployed will carry selector
|
|
// "chaos_actor:true".
|
|
type Actor struct{}
|
|
|
|
// CallerValidationBranch is an enum used to select a branch in the
|
|
// CallerValidation method.
|
|
type CallerValidationBranch int64
|
|
|
|
const (
|
|
// CallerValidationBranchNone causes no caller validation to take place.
|
|
CallerValidationBranchNone CallerValidationBranch = iota
|
|
// CallerValidationBranchTwice causes Runtime.ValidateImmediateCallerAcceptAny to be called twice.
|
|
CallerValidationBranchTwice
|
|
// CallerValidationBranchIsAddress causes caller validation against CallerValidationArgs.Addrs.
|
|
CallerValidationBranchIsAddress
|
|
// CallerValidationBranchIsType causes caller validation against CallerValidationArgs.Types.
|
|
CallerValidationBranchIsType
|
|
)
|
|
|
|
// MutateStateBranch is an enum used to select the type of state mutation to attempt.
|
|
type MutateStateBranch int64
|
|
|
|
const (
|
|
// MutateInTransaction legally mutates state within a transaction.
|
|
MutateInTransaction MutateStateBranch = iota
|
|
// MutateReadonly ILLEGALLY mutates readonly state.
|
|
MutateReadonly
|
|
// MutateAfterTransaction ILLEGALLY mutates state after a transaction.
|
|
MutateAfterTransaction
|
|
)
|
|
|
|
const (
|
|
_ = 0 // skip zero iota value; first usage of iota gets 1.
|
|
MethodCallerValidation = builtin.MethodConstructor + iota
|
|
MethodCreateActor
|
|
MethodResolveAddress
|
|
// MethodDeleteActor is the identifier for the method that deletes this actor.
|
|
MethodDeleteActor
|
|
// MethodSend is the identifier for the method that sends a message to another actor.
|
|
MethodSend
|
|
// MethodMutateState is the identifier for the method that attempts to mutate
|
|
// a state value in the actor.
|
|
MethodMutateState
|
|
// MethodAbortWith is the identifier for the method that panics optionally with
|
|
// a passed exit code.
|
|
MethodAbortWith
|
|
// MethodInspectRuntime is the identifier for the method that returns the
|
|
// current runtime values.
|
|
MethodInspectRuntime
|
|
)
|
|
|
|
// Exports defines the methods this actor exposes publicly.
|
|
func (a Actor) Exports() []interface{} {
|
|
return []interface{}{
|
|
builtin.MethodConstructor: a.Constructor,
|
|
MethodCallerValidation: a.CallerValidation,
|
|
MethodCreateActor: a.CreateActor,
|
|
MethodResolveAddress: a.ResolveAddress,
|
|
MethodDeleteActor: a.DeleteActor,
|
|
MethodSend: a.Send,
|
|
MethodMutateState: a.MutateState,
|
|
MethodAbortWith: a.AbortWith,
|
|
MethodInspectRuntime: a.InspectRuntime,
|
|
}
|
|
}
|
|
|
|
var _ runtime.Invokee = Actor{}
|
|
|
|
// SendArgs are the arguments for the Send method.
|
|
type SendArgs struct {
|
|
To address.Address
|
|
Value abi.TokenAmount
|
|
Method abi.MethodNum
|
|
Params []byte
|
|
}
|
|
|
|
// SendReturn is the return values for the Send method.
|
|
type SendReturn struct {
|
|
Return runtime.CBORBytes
|
|
Code exitcode.ExitCode
|
|
}
|
|
|
|
// Send requests for this actor to send a message to an actor with the
|
|
// passed parameters.
|
|
func (a Actor) Send(rt runtime.Runtime, args *SendArgs) *SendReturn {
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
var out runtime.CBORBytes
|
|
code := rt.Send(
|
|
args.To,
|
|
args.Method,
|
|
runtime.CBORBytes(args.Params),
|
|
args.Value,
|
|
&out,
|
|
)
|
|
return &SendReturn{
|
|
Return: out,
|
|
Code: code,
|
|
}
|
|
}
|
|
|
|
// Constructor will panic because the Chaos actor is a singleton.
|
|
func (a Actor) Constructor(_ runtime.Runtime, _ *abi.EmptyValue) *abi.EmptyValue {
|
|
panic("constructor should not be called; the Chaos actor is a singleton actor")
|
|
}
|
|
|
|
// CallerValidationArgs are the arguments to Actor.CallerValidation.
|
|
type CallerValidationArgs struct {
|
|
Branch CallerValidationBranch
|
|
Addrs []address.Address
|
|
Types []cid.Cid
|
|
}
|
|
|
|
// CallerValidation violates VM call validation constraints.
|
|
//
|
|
// CallerValidationBranchNone performs no validation.
|
|
// CallerValidationBranchTwice validates twice.
|
|
// CallerValidationBranchIsAddress validates caller against CallerValidationArgs.Addrs.
|
|
// CallerValidationBranchIsType validates caller against CallerValidationArgs.Types.
|
|
func (a Actor) CallerValidation(rt runtime.Runtime, args *CallerValidationArgs) *abi.EmptyValue {
|
|
switch args.Branch {
|
|
case CallerValidationBranchNone:
|
|
case CallerValidationBranchTwice:
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
case CallerValidationBranchIsAddress:
|
|
rt.ValidateImmediateCallerIs(args.Addrs...)
|
|
case CallerValidationBranchIsType:
|
|
rt.ValidateImmediateCallerType(args.Types...)
|
|
default:
|
|
panic("invalid branch passed to CallerValidation")
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// CreateActorArgs are the arguments to CreateActor.
|
|
type CreateActorArgs struct {
|
|
// UndefActorCID instructs us to use cid.Undef; we can't pass cid.Undef
|
|
// in ActorCID because it doesn't serialize.
|
|
UndefActorCID bool
|
|
ActorCID cid.Cid
|
|
|
|
// UndefAddress is the same as UndefActorCID but for Address.
|
|
UndefAddress bool
|
|
Address address.Address
|
|
}
|
|
|
|
// CreateActor creates an actor with the supplied CID and Address.
|
|
func (a Actor) CreateActor(rt runtime.Runtime, args *CreateActorArgs) *abi.EmptyValue {
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
|
|
var (
|
|
acid = args.ActorCID
|
|
addr = args.Address
|
|
)
|
|
|
|
if args.UndefActorCID {
|
|
acid = cid.Undef
|
|
}
|
|
if args.UndefAddress {
|
|
addr = address.Undef
|
|
}
|
|
|
|
rt.CreateActor(acid, addr)
|
|
return nil
|
|
}
|
|
|
|
// ResolveAddressResponse holds the response of a call to runtime.ResolveAddress
|
|
type ResolveAddressResponse struct {
|
|
Address address.Address
|
|
Success bool
|
|
}
|
|
|
|
func (a Actor) ResolveAddress(rt runtime.Runtime, args *address.Address) *ResolveAddressResponse {
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
|
|
resolvedAddr, ok := rt.ResolveAddress(*args)
|
|
if !ok {
|
|
invalidAddr, _ := address.NewIDAddress(0)
|
|
resolvedAddr = invalidAddr
|
|
}
|
|
return &ResolveAddressResponse{resolvedAddr, ok}
|
|
}
|
|
|
|
// DeleteActor deletes the executing actor from the state tree, transferring any
|
|
// balance to beneficiary.
|
|
func (a Actor) DeleteActor(rt runtime.Runtime, beneficiary *address.Address) *abi.EmptyValue {
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
rt.DeleteActor(*beneficiary)
|
|
return nil
|
|
}
|
|
|
|
// MutateStateArgs specify the value to set on the state and the way in which
|
|
// it should be attempted to be set.
|
|
type MutateStateArgs struct {
|
|
Value string
|
|
Branch MutateStateBranch
|
|
}
|
|
|
|
// MutateState attempts to mutate a state value in the actor.
|
|
func (a Actor) MutateState(rt runtime.Runtime, args *MutateStateArgs) *abi.EmptyValue {
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
var st State
|
|
switch args.Branch {
|
|
case MutateInTransaction:
|
|
rt.StateTransaction(&st, func() {
|
|
st.Value = args.Value
|
|
})
|
|
case MutateReadonly:
|
|
rt.StateReadonly(&st)
|
|
st.Value = args.Value
|
|
case MutateAfterTransaction:
|
|
rt.StateTransaction(&st, func() {
|
|
st.Value = args.Value + "-in"
|
|
})
|
|
st.Value = args.Value
|
|
default:
|
|
panic("unknown mutation type")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// AbortWithArgs are the arguments to the Actor.AbortWith method, specifying the
|
|
// exit code to (optionally) abort with and the message.
|
|
type AbortWithArgs struct {
|
|
Code exitcode.ExitCode
|
|
Message string
|
|
Uncontrolled bool
|
|
}
|
|
|
|
// AbortWith simply causes a panic with the passed exit code.
|
|
func (a Actor) AbortWith(rt runtime.Runtime, args *AbortWithArgs) *abi.EmptyValue {
|
|
if args.Uncontrolled { // uncontrolled abort: directly panic
|
|
panic(args.Message)
|
|
} else {
|
|
rt.Abortf(args.Code, args.Message)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// InspectRuntimeReturn is the return value for the Actor.InspectRuntime method.
|
|
type InspectRuntimeReturn struct {
|
|
Caller address.Address
|
|
Receiver address.Address
|
|
ValueReceived abi.TokenAmount
|
|
CurrEpoch abi.ChainEpoch
|
|
CurrentBalance abi.TokenAmount
|
|
State State
|
|
}
|
|
|
|
// InspectRuntime returns a copy of the serializable values available in the Runtime.
|
|
func (a Actor) InspectRuntime(rt runtime.Runtime, _ *abi.EmptyValue) *InspectRuntimeReturn {
|
|
rt.ValidateImmediateCallerAcceptAny()
|
|
var st State
|
|
rt.StateReadonly(&st)
|
|
return &InspectRuntimeReturn{
|
|
Caller: rt.Caller(),
|
|
Receiver: rt.Receiver(),
|
|
ValueReceived: rt.ValueReceived(),
|
|
CurrEpoch: rt.CurrEpoch(),
|
|
CurrentBalance: rt.CurrentBalance(),
|
|
State: st,
|
|
}
|
|
}
|