tendermint

package
v9.0.0 Latest Latest
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 Go to latest Published: Jul 11, 2024 License: MIT Imports: 42 Imported by: 0

Documentation

Overview

Package tendermint implements a concrete LightClientModule, ClientState, ConsensusState, Header, Misbehaviour and types for the Tendermint consensus light client. This implementation is based off the ICS 07 specification (https://github.com/cosmos/ibc/tree/main/spec/client/ics-007-tendermint-client)

Index

Constants

View Source 
const KeyIterateConsensusStatePrefix = "iterateConsensusStates"
View Source 
const (
	ModuleName = "07-tendermint"
)
View Source 
const SentinelRoot = "sentinel_root"

SentinelRoot is used as a stand-in root value for the consensus state set at the upgrade height

Variables

View Source 
var (
	ErrInvalidChainID          = errorsmod.Register(ModuleName, 2, "invalid chain-id")
	ErrInvalidTrustingPeriod   = errorsmod.Register(ModuleName, 3, "invalid trusting period")
	ErrInvalidUnbondingPeriod  = errorsmod.Register(ModuleName, 4, "invalid unbonding period")
	ErrInvalidHeaderHeight     = errorsmod.Register(ModuleName, 5, "invalid header height")
	ErrInvalidHeader           = errorsmod.Register(ModuleName, 6, "invalid header")
	ErrInvalidMaxClockDrift    = errorsmod.Register(ModuleName, 7, "invalid max clock drift")
	ErrProcessedTimeNotFound   = errorsmod.Register(ModuleName, 8, "processed time not found")
	ErrProcessedHeightNotFound = errorsmod.Register(ModuleName, 9, "processed height not found")
	ErrDelayPeriodNotPassed    = errorsmod.Register(ModuleName, 10, "packet-specified delay period has not been reached")
	ErrTrustingPeriodExpired   = errorsmod.Register(ModuleName, 11, "time since latest trusted state has passed the trusting period")
	ErrUnbondingPeriodExpired  = errorsmod.Register(ModuleName, 12, "time since latest trusted state has passed the unbonding period")
	ErrInvalidProofSpecs       = errorsmod.Register(ModuleName, 13, "invalid proof specs")
	ErrInvalidValidatorSet     = errorsmod.Register(ModuleName, 14, "invalid validator set")
	ErrInvalidTrustLevel       = errorsmod.Register(ModuleName, 15, "invalid trust level")
)

IBC tendermint client sentinel errors

View Source 
var (
	// KeyProcessedTime is appended to consensus state key to store the processed time
	KeyProcessedTime = []byte("/processedTime")
	// KeyProcessedHeight is appended to consensus state key to store the processed height
	KeyProcessedHeight = []byte("/processedHeight")
	// KeyIteration stores the key mapping to consensus state key for efficient iteration
	KeyIteration = []byte("/iterationKey")
)
View Source 
var (
	ErrInvalidLengthTendermint        = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowTendermint          = fmt.Errorf("proto: integer overflow")
	ErrUnexpectedEndOfGroupTendermint = fmt.Errorf("proto: unexpected end of group")
)
View Source 
var DefaultTrustLevel = NewFractionFromTm(light.DefaultTrustLevel)

DefaultTrustLevel is the tendermint light client default trust level

View Source 
var FrozenHeight = clienttypes.NewHeight(0, 1)

FrozenHeight is same for all misbehaviour

Functions

func GetHeightFromIterationKey 

func GetHeightFromIterationKey(iterKey []byte) exported.Height

GetHeightFromIterationKey takes an iteration key and returns the height that it references

func GetIterationKey 

func GetIterationKey(clientStore storetypes.KVStore, height exported.Height) []byte

GetIterationKey returns the consensus state key stored under the efficient iteration key. NOTE: This function is currently only used for testing purposes

func GetProcessedHeight 

func GetProcessedHeight(clientStore storetypes.KVStore, height exported.Height) (exported.Height, bool)

GetProcessedHeight gets the height at which this chain received and processed a tendermint header. This is used to validate that a received packet has passed the block delay period.

func GetProcessedTime 

func GetProcessedTime(clientStore storetypes.KVStore, height exported.Height) (uint64, bool)

GetProcessedTime gets the time (in nanoseconds) at which this chain received and processed a tendermint header. This is used to validate that a received packet has passed the time delay period.

func IsMatchingClientState 

func IsMatchingClientState(subject, substitute ClientState) bool

IsMatchingClientState returns true if all the client state parameters match except for frozen height, latest height, trusting period, chain-id.

func IterateConsensusStateAscending 

func IterateConsensusStateAscending(clientStore storetypes.KVStore, cb func(height exported.Height) (stop bool))

IterateConsensusStateAscending iterates through the consensus states in ascending order. It calls the provided callback on each height, until stop=true is returned.

func IterationKey 

func IterationKey(height exported.Height) []byte

IterationKey returns the key under which the consensus state key will be stored. The iteration key is a BigEndian representation of the consensus state key to support efficient iteration.

func NewConsensusHost 

func NewConsensusHost(stakingKeeper clienttypes.StakingKeeper) clienttypes.ConsensusHost

NewConsensusHost creates and returns a new ConsensusHost for tendermint consensus.

func ProcessedHeightKey 

func ProcessedHeightKey(height exported.Height) []byte

ProcessedHeightKey returns the key under which the processed height will be stored in the client store.

func ProcessedTimeKey 

func ProcessedTimeKey(height exported.Height) []byte

ProcessedTimeKey returns the key under which the processed time will be stored in the client store.

func PruneAllExpiredConsensusStates 

func PruneAllExpiredConsensusStates(
	ctx sdk.Context, clientStore storetypes.KVStore,
	cdc codec.BinaryCodec, clientState *ClientState,
) int

PruneAllExpiredConsensusStates iterates over all consensus states for a given client store. If a consensus state is expired, it is deleted and its metadata is deleted. The number of consensus states pruned is returned.

func RegisterInterfaces 

func RegisterInterfaces(registry codectypes.InterfaceRegistry)

RegisterInterfaces registers the tendermint concrete client-related implementations and interfaces.

func SetIterationKey 

func SetIterationKey(clientStore storetypes.KVStore, height exported.Height)

SetIterationKey stores the consensus state key under a key that is more efficient for ordered iteration

func SetProcessedHeight 

func SetProcessedHeight(clientStore storetypes.KVStore, consHeight, processedHeight exported.Height)

SetProcessedHeight stores the height at which a header was processed and the corresponding consensus state was created. This is useful when validating whether a packet has reached the specified block delay period in the tendermint client's verification functions

func SetProcessedTime 

func SetProcessedTime(clientStore storetypes.KVStore, height exported.Height, timeNs uint64)

SetProcessedTime stores the time at which a header was processed and the corresponding consensus state was created. This is useful when validating whether a packet has reached the time specified delay period in the tendermint client's verification functions

Types

type AppModule 

type AppModule struct {
	AppModuleBasic
	// contains filtered or unexported fields
}

AppModule is the application module for the Tendermint client module

func NewAppModule 

func NewAppModule(lightClientModule LightClientModule) AppModule

NewAppModule creates a new Tendermint client module

func (AppModule) IsAppModule 

func (AppModule) IsAppModule()

IsAppModule implements the appmodule.AppModule interface.

func (AppModule) IsOnePerModuleType 

func (AppModule) IsOnePerModuleType()

IsOnePerModuleType implements the depinject.OnePerModuleType interface.

type AppModuleBasic 

type AppModuleBasic struct{}

AppModuleBasic defines the basic application module used by the tendermint light client. Only the RegisterInterfaces function needs to be implemented. All other function perform a no-op.

func (AppModuleBasic) DefaultGenesis 

func (AppModuleBasic) DefaultGenesis(cdc codec.JSONCodec) json.RawMessage

DefaultGenesis performs a no-op. Genesis is not supported for the tendermint light client.

func (AppModuleBasic) GetQueryCmd 

func (AppModuleBasic) GetQueryCmd() *cobra.Command

GetQueryCmd performs a no-op. Please see the 02-client cli commands.

func (AppModuleBasic) GetTxCmd 

func (AppModuleBasic) GetTxCmd() *cobra.Command

GetTxCmd performs a no-op. Please see the 02-client cli commands.

func (AppModuleBasic) IsAppModule 

func (AppModuleBasic) IsAppModule()

IsAppModule implements the appmodule.AppModule interface.

func (AppModuleBasic) IsOnePerModuleType 

func (AppModuleBasic) IsOnePerModuleType()

IsOnePerModuleType implements the depinject.OnePerModuleType interface.

func (AppModuleBasic) Name 

func (AppModuleBasic) Name() string

Name returns the tendermint module name.

func (AppModuleBasic) RegisterGRPCGatewayRoutes 

func (AppModuleBasic) RegisterGRPCGatewayRoutes(clientCtx client.Context, mux *runtime.ServeMux)

RegisterGRPCGatewayRoutes performs a no-op.

func (AppModuleBasic) RegisterInterfaces 

func (AppModuleBasic) RegisterInterfaces(registry codectypes.InterfaceRegistry)

RegisterInterfaces registers module concrete types into protobuf Any. This allows core IBC to unmarshal tendermint light client types.

func (AppModuleBasic) RegisterLegacyAminoCodec 

func (AppModuleBasic) RegisterLegacyAminoCodec(*codec.LegacyAmino)

RegisterLegacyAminoCodec performs a no-op. The Tendermint client does not support amino.

func (AppModuleBasic) ValidateGenesis 

func (AppModuleBasic) ValidateGenesis(cdc codec.JSONCodec, config client.TxEncodingConfig, bz json.RawMessage) error

ValidateGenesis performs a no-op. Genesis is not supported for the tendermint light client.

type ClientState 

type ClientState struct {
	ChainId    string   `protobuf:"bytes,1,opt,name=chain_id,json=chainId,proto3" json:"chain_id,omitempty"`
	TrustLevel Fraction `protobuf:"bytes,2,opt,name=trust_level,json=trustLevel,proto3" json:"trust_level"`
	// duration of the period since the LatestTimestamp during which the
	// submitted headers are valid for upgrade
	TrustingPeriod time.Duration `protobuf:"bytes,3,opt,name=trusting_period,json=trustingPeriod,proto3,stdduration" json:"trusting_period"`
	// duration of the staking unbonding period
	UnbondingPeriod time.Duration `protobuf:"bytes,4,opt,name=unbonding_period,json=unbondingPeriod,proto3,stdduration" json:"unbonding_period"`
	// defines how much new (untrusted) header's Time can drift into the future.
	MaxClockDrift time.Duration `protobuf:"bytes,5,opt,name=max_clock_drift,json=maxClockDrift,proto3,stdduration" json:"max_clock_drift"`
	// Block height when the client was frozen due to a misbehaviour
	FrozenHeight types.Height `protobuf:"bytes,6,opt,name=frozen_height,json=frozenHeight,proto3" json:"frozen_height"`
	// Latest height the client was updated to
	LatestHeight types.Height `protobuf:"bytes,7,opt,name=latest_height,json=latestHeight,proto3" json:"latest_height"`
	// Proof specifications used in verifying counterparty state
	ProofSpecs []*_go.ProofSpec `protobuf:"bytes,8,rep,name=proof_specs,json=proofSpecs,proto3" json:"proof_specs,omitempty"`
	// Path at which next upgraded client will be committed.
	// Each element corresponds to the key for a single CommitmentProof in the
	// chained proof. NOTE: ClientState must stored under
	// `{upgradePath}/{upgradeHeight}/clientState` ConsensusState must be stored
	// under `{upgradepath}/{upgradeHeight}/consensusState` For SDK chains using
	// the default upgrade module, upgrade_path should be []string{"upgrade",
	// "upgradedIBCState"}`
	UpgradePath []string `protobuf:"bytes,9,rep,name=upgrade_path,json=upgradePath,proto3" json:"upgrade_path,omitempty"`
	// allow_update_after_expiry is deprecated
	AllowUpdateAfterExpiry bool `` // Deprecated: Do not use.
	/* 133-byte string literal not displayed */
	// allow_update_after_misbehaviour is deprecated
	AllowUpdateAfterMisbehaviour bool `` // Deprecated: Do not use.
	/* 151-byte string literal not displayed */
}

ClientState from Tendermint tracks the current validator set, latest height, and a possible frozen height.

func NewClientState 

func NewClientState(
	chainID string, trustLevel Fraction,
	trustingPeriod, ubdPeriod, maxClockDrift time.Duration,
	latestHeight clienttypes.Height, specs []*ics23.ProofSpec,
	upgradePath []string,
) *ClientState

NewClientState creates a new ClientState instance

func (ClientState) CheckForMisbehaviour 

func (ClientState) CheckForMisbehaviour(ctx sdk.Context, cdc codec.BinaryCodec, clientStore storetypes.KVStore, msg exported.ClientMessage) bool

CheckForMisbehaviour detects duplicate height misbehaviour and BFT time violation misbehaviour in a submitted Header message and verifies the correctness of a submitted Misbehaviour ClientMessage

func (ClientState) CheckSubstituteAndUpdateState 

func (cs ClientState) CheckSubstituteAndUpdateState(
	ctx sdk.Context, cdc codec.BinaryCodec, subjectClientStore,
	substituteClientStore storetypes.KVStore, substituteClient exported.ClientState,
) error

CheckSubstituteAndUpdateState will try to update the client with the state of the substitute.

AllowUpdateAfterMisbehaviour and AllowUpdateAfterExpiry have been deprecated. Please see ADR 026 for more information.

The following must always be true:

  • The substitute client is the same type as the subject client
  • The subject and substitute client states match in all parameters (expect frozen height, latest height, and chain-id)

In case 1) before updating the client, the client will be unfrozen by resetting the FrozenHeight to the zero Height.

func (ClientState) ClientType 

func (ClientState) ClientType() string

ClientType is tendermint.

func (*ClientState) Descriptor 

func (*ClientState) Descriptor() ([]byte, []int)

func (ClientState) GetChainID 

func (cs ClientState) GetChainID() string

GetChainID returns the chain-id

func (ClientState) GetTimestampAtHeight 

func (ClientState) GetTimestampAtHeight(
	ctx sdk.Context,
	clientStore storetypes.KVStore,
	cdc codec.BinaryCodec,
	height exported.Height,
) (uint64, error)

GetTimestampAtHeight returns the timestamp in nanoseconds of the consensus state at the given height.

func (ClientState) Initialize 

func (cs ClientState) Initialize(ctx sdk.Context, cdc codec.BinaryCodec, clientStore storetypes.KVStore, consState exported.ConsensusState) error

Initialize checks that the initial consensus state is an 07-tendermint consensus state and sets the client state, consensus state and associated metadata in the provided client store.

func (ClientState) IsExpired 

func (cs ClientState) IsExpired(latestTimestamp, now time.Time) bool

IsExpired returns whether or not the client has passed the trusting period since the last update (in which case no headers are considered valid).

func (*ClientState) Marshal 

func (m *ClientState) Marshal() (dAtA []byte, err error)

func (*ClientState) MarshalTo 

func (m *ClientState) MarshalTo(dAtA []byte) (int, error)

func (*ClientState) MarshalToSizedBuffer 

func (m *ClientState) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*ClientState) ProtoMessage 

func (*ClientState) ProtoMessage()

func (*ClientState) Reset 

func (m *ClientState) Reset()

func (*ClientState) Size 

func (m *ClientState) Size() (n int)

func (ClientState) Status 

func (cs ClientState) Status(
	ctx sdk.Context,
	clientStore storetypes.KVStore,
	cdc codec.BinaryCodec,
) exported.Status

Status returns the status of the tendermint client. The client may be: - Active: FrozenHeight is zero and client is not expired - Frozen: Frozen Height is not zero - Expired: the latest consensus state timestamp + trusting period <= current time

A frozen client will become expired, so the Frozen status has higher precedence.

func (*ClientState) String 

func (m *ClientState) String() string

func (*ClientState) Unmarshal 

func (m *ClientState) Unmarshal(dAtA []byte) error

func (ClientState) UpdateState 

func (cs ClientState) UpdateState(ctx sdk.Context, cdc codec.BinaryCodec, clientStore storetypes.KVStore, clientMsg exported.ClientMessage) []exported.Height

UpdateState may be used to either create a consensus state for: - a future height greater than the latest client state height - a past height that was skipped during bisection If we are updating to a past height, a consensus state is created for that height to be persisted in client store If we are updating to a future height, the consensus state is created and the client state is updated to reflect the new latest height A list containing the updated consensus height is returned. UpdateState must only be used to update within a single revision, thus header revision number and trusted height's revision number must be the same. To update to a new revision, use a separate upgrade path UpdateState will prune the oldest consensus state if it is expired. If the provided clientMsg is not of type of Header then the handler will noop and empty slice is returned.

func (ClientState) UpdateStateOnMisbehaviour 

func (cs ClientState) UpdateStateOnMisbehaviour(ctx sdk.Context, cdc codec.BinaryCodec, clientStore storetypes.KVStore, _ exported.ClientMessage)

UpdateStateOnMisbehaviour updates state upon misbehaviour, freezing the ClientState. This method should only be called when misbehaviour is detected as it does not perform any misbehaviour checks.

func (ClientState) Validate 

func (cs ClientState) Validate() error

Validate performs a basic validation of the client state fields.

func (*ClientState) VerifyClientMessage 

func (cs *ClientState) VerifyClientMessage(
	ctx sdk.Context, cdc codec.BinaryCodec, clientStore storetypes.KVStore,
	clientMsg exported.ClientMessage,
) error

VerifyClientMessage checks if the clientMessage is of type Header or Misbehaviour and verifies the message

func (ClientState) VerifyMembership 

func (cs ClientState) VerifyMembership(
	ctx sdk.Context,
	clientStore storetypes.KVStore,
	cdc codec.BinaryCodec,
	height exported.Height,
	delayTimePeriod uint64,
	delayBlockPeriod uint64,
	proof []byte,
	path exported.Path,
	value []byte,
) error

VerifyMembership is a generic proof verification method which verifies a proof of the existence of a value at a given CommitmentPath at the specified height. The caller is expected to construct the full CommitmentPath from a CommitmentPrefix and a standardized path (as defined in ICS 24). If a zero proof height is passed in, it will fail to retrieve the associated consensus state.

func (ClientState) VerifyNonMembership 

func (cs ClientState) VerifyNonMembership(
	ctx sdk.Context,
	clientStore storetypes.KVStore,
	cdc codec.BinaryCodec,
	height exported.Height,
	delayTimePeriod uint64,
	delayBlockPeriod uint64,
	proof []byte,
	path exported.Path,
) error

VerifyNonMembership is a generic proof verification method which verifies the absence of a given CommitmentPath at a specified height. The caller is expected to construct the full CommitmentPath from a CommitmentPrefix and a standardized path (as defined in ICS 24). If a zero proof height is passed in, it will fail to retrieve the associated consensus state.

func (ClientState) VerifyUpgradeAndUpdateState 

func (cs ClientState) VerifyUpgradeAndUpdateState(
	ctx sdk.Context, cdc codec.BinaryCodec, clientStore storetypes.KVStore,
	upgradedClient exported.ClientState, upgradedConsState exported.ConsensusState,
	upgradeClientProof, upgradeConsStateProof []byte,
) error

VerifyUpgradeAndUpdateState checks if the upgraded client has been committed by the current client It will zero out all client-specific fields (e.g. TrustingPeriod) and verify all data in client state that must be the same across all valid Tendermint clients for the new chain. VerifyUpgrade will return an error if: - the upgradedClient is not a Tendermint ClientState - the latest height of the client state does not have the same revision number or has a greater height than the committed client.

  • the height of upgraded client is not greater than that of current client
  • the latest height of the new client does not match or is greater than the height in committed client
  • any Tendermint chain specified parameter in upgraded client such as ChainID, UnbondingPeriod, and ProofSpecs do not match parameters set by committed client

func (*ClientState) XXX_DiscardUnknown 

func (m *ClientState) XXX_DiscardUnknown()

func (*ClientState) XXX_Marshal 

func (m *ClientState) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ClientState) XXX_Merge 

func (m *ClientState) XXX_Merge(src proto.Message)

func (*ClientState) XXX_Size 

func (m *ClientState) XXX_Size() int

func (*ClientState) XXX_Unmarshal 

func (m *ClientState) XXX_Unmarshal(b []byte) error

func (ClientState) ZeroCustomFields 

func (cs ClientState) ZeroCustomFields() *ClientState

ZeroCustomFields returns a ClientState that is a copy of the current ClientState with all client customizable fields zeroed out. All chain specific fields must remain unchanged. This client state will be used to verify chain upgrades when a chain breaks a light client verification parameter such as chainID.

type ConsensusHost 

type ConsensusHost struct {
	// contains filtered or unexported fields
}

ConsensusHost implements the 02-client clienttypes.ConsensusHost interface.

func (*ConsensusHost) GetSelfConsensusState 

func (c *ConsensusHost) GetSelfConsensusState(ctx sdk.Context, height exported.Height) (exported.ConsensusState, error)

GetSelfConsensusState implements the 02-client clienttypes.ConsensusHost interface.

func (*ConsensusHost) ValidateSelfClient 

func (c *ConsensusHost) ValidateSelfClient(ctx sdk.Context, clientState exported.ClientState) error

ValidateSelfClient implements the 02-client clienttypes.ConsensusHost interface.

type ConsensusState 

type ConsensusState struct {
	// timestamp that corresponds to the block height in which the ConsensusState
	// was stored.
	Timestamp time.Time `protobuf:"bytes,1,opt,name=timestamp,proto3,stdtime" json:"timestamp"`
	// commitment root (i.e app hash)
	Root               types1.MerkleRoot                                `protobuf:"bytes,2,opt,name=root,proto3" json:"root"`
	NextValidatorsHash github_com_cometbft_cometbft_libs_bytes.HexBytes `` /* 175-byte string literal not displayed */
}

ConsensusState defines the consensus state from Tendermint.

func GetConsensusState 

func GetConsensusState(store storetypes.KVStore, cdc codec.BinaryCodec, height exported.Height) (*ConsensusState, bool)

GetConsensusState retrieves the consensus state from the client prefixed store. If the ConsensusState does not exist in state for the provided height a nil value and false boolean flag is returned

func GetNextConsensusState 

func GetNextConsensusState(clientStore storetypes.KVStore, cdc codec.BinaryCodec, height exported.Height) (*ConsensusState, bool)

GetNextConsensusState returns the lowest consensus state that is larger than the given height. The Iterator returns a storetypes.Iterator which iterates from start (inclusive) to end (exclusive). If the starting height exists in store, we need to call iterator.Next() to get the next consenus state. Otherwise, the iterator is already at the next consensus state so we can call iterator.Value() immediately.

func GetPreviousConsensusState 

func GetPreviousConsensusState(clientStore storetypes.KVStore, cdc codec.BinaryCodec, height exported.Height) (*ConsensusState, bool)

GetPreviousConsensusState returns the highest consensus state that is lower than the given height. The Iterator returns a storetypes.Iterator which iterates from the end (exclusive) to start (inclusive). Thus to get previous consensus state we call iterator.Value() immediately.

func NewConsensusState 

func NewConsensusState(
	timestamp time.Time, root commitmenttypes.MerkleRoot, nextValsHash cmtbytes.HexBytes,
) *ConsensusState

NewConsensusState creates a new ConsensusState instance.

func (ConsensusState) ClientType 

func (ConsensusState) ClientType() string

ClientType returns Tendermint

func (*ConsensusState) Descriptor 

func (*ConsensusState) Descriptor() ([]byte, []int)

func (ConsensusState) GetRoot 

func (cs ConsensusState) GetRoot() exported.Root

GetRoot returns the commitment Root for the specific

func (ConsensusState) GetTimestamp 

func (cs ConsensusState) GetTimestamp() uint64

GetTimestamp returns block time in nanoseconds of the header that created consensus state

func (*ConsensusState) Marshal 

func (m *ConsensusState) Marshal() (dAtA []byte, err error)

func (*ConsensusState) MarshalTo 

func (m *ConsensusState) MarshalTo(dAtA []byte) (int, error)

func (*ConsensusState) MarshalToSizedBuffer 

func (m *ConsensusState) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*ConsensusState) ProtoMessage 

func (*ConsensusState) ProtoMessage()

func (*ConsensusState) Reset 

func (m *ConsensusState) Reset()

func (*ConsensusState) Size 

func (m *ConsensusState) Size() (n int)

func (*ConsensusState) String 

func (m *ConsensusState) String() string

func (*ConsensusState) Unmarshal 

func (m *ConsensusState) Unmarshal(dAtA []byte) error

func (ConsensusState) ValidateBasic 

func (cs ConsensusState) ValidateBasic() error

ValidateBasic defines a basic validation for the tendermint consensus state. NOTE: ProcessedTimestamp may be zero if this is an initial consensus state passed in by relayer as opposed to a consensus state constructed by the chain.

func (*ConsensusState) XXX_DiscardUnknown 

func (m *ConsensusState) XXX_DiscardUnknown()

func (*ConsensusState) XXX_Marshal 

func (m *ConsensusState) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ConsensusState) XXX_Merge 

func (m *ConsensusState) XXX_Merge(src proto.Message)

func (*ConsensusState) XXX_Size 

func (m *ConsensusState) XXX_Size() int

func (*ConsensusState) XXX_Unmarshal 

func (m *ConsensusState) XXX_Unmarshal(b []byte) error

type Fraction 

type Fraction struct {
	Numerator   uint64 `protobuf:"varint,1,opt,name=numerator,proto3" json:"numerator,omitempty"`
	Denominator uint64 `protobuf:"varint,2,opt,name=denominator,proto3" json:"denominator,omitempty"`
}

Fraction defines the protobuf message type for tmmath.Fraction that only supports positive values.

func NewFractionFromTm 

func NewFractionFromTm(f cmtmath.Fraction) Fraction

NewFractionFromTm returns a new Fraction instance from a tmmath.Fraction

func (*Fraction) Descriptor 

func (*Fraction) Descriptor() ([]byte, []int)

func (*Fraction) GetDenominator 

func (m *Fraction) GetDenominator() uint64

func (*Fraction) GetNumerator 

func (m *Fraction) GetNumerator() uint64

func (*Fraction) Marshal 

func (m *Fraction) Marshal() (dAtA []byte, err error)

func (*Fraction) MarshalTo 

func (m *Fraction) MarshalTo(dAtA []byte) (int, error)

func (*Fraction) MarshalToSizedBuffer 

func (m *Fraction) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*Fraction) ProtoMessage 

func (*Fraction) ProtoMessage()

func (*Fraction) Reset 

func (m *Fraction) Reset()

func (*Fraction) Size 

func (m *Fraction) Size() (n int)

func (*Fraction) String 

func (m *Fraction) String() string

func (Fraction) ToTendermint 

func (f Fraction) ToTendermint() cmtmath.Fraction

ToTendermint converts Fraction to tmmath.Fraction

func (*Fraction) Unmarshal 

func (m *Fraction) Unmarshal(dAtA []byte) error

func (*Fraction) XXX_DiscardUnknown 

func (m *Fraction) XXX_DiscardUnknown()

func (*Fraction) XXX_Marshal 

func (m *Fraction) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Fraction) XXX_Merge 

func (m *Fraction) XXX_Merge(src proto.Message)

func (*Fraction) XXX_Size 

func (m *Fraction) XXX_Size() int

func (*Fraction) XXX_Unmarshal 

func (m *Fraction) XXX_Unmarshal(b []byte) error
type Header struct {
	*types2.SignedHeader `protobuf:"bytes,1,opt,name=signed_header,json=signedHeader,proto3,embedded=signed_header" json:"signed_header,omitempty"`
	ValidatorSet         *types2.ValidatorSet `protobuf:"bytes,2,opt,name=validator_set,json=validatorSet,proto3" json:"validator_set,omitempty"`
	TrustedHeight        types.Height         `protobuf:"bytes,3,opt,name=trusted_height,json=trustedHeight,proto3" json:"trusted_height"`
	TrustedValidators    *types2.ValidatorSet `protobuf:"bytes,4,opt,name=trusted_validators,json=trustedValidators,proto3" json:"trusted_validators,omitempty"`
}

Header defines the Tendermint client consensus Header. It encapsulates all the information necessary to update from a trusted Tendermint ConsensusState. The inclusion of TrustedHeight and TrustedValidators allows this update to process correctly, so long as the ConsensusState for the TrustedHeight exists, this removes race conditions among relayers The SignedHeader and ValidatorSet are the new untrusted update fields for the client. The TrustedHeight is the height of a stored ConsensusState on the client that will be used to verify the new untrusted header. The Trusted ConsensusState must be within the unbonding period of current time in order to correctly verify, and the TrustedValidators must hash to TrustedConsensusState.NextValidatorsHash since that is the last trusted validator set at the TrustedHeight.

func (Header) ClientType 

func (Header) ClientType() string

ClientType defines that the Header is a Tendermint consensus algorithm

func (Header) ConsensusState 

func (h Header) ConsensusState() *ConsensusState

ConsensusState returns the updated consensus state associated with the header

func (*Header) Descriptor 

func (*Header) Descriptor() ([]byte, []int)

func (Header) GetHeight 

func (h Header) GetHeight() exported.Height

GetHeight returns the current height. It returns 0 if the tendermint header is nil. NOTE: the header.Header is checked to be non nil in ValidateBasic.

func (Header) GetTime 

func (h Header) GetTime() time.Time

GetTime returns the current block timestamp. It returns a zero time if the tendermint header is nil. NOTE: the header.Header is checked to be non nil in ValidateBasic.

func (*Header) GetTrustedHeight 

func (m *Header) GetTrustedHeight() types.Height

func (*Header) GetTrustedValidators 

func (m *Header) GetTrustedValidators() *types2.ValidatorSet

func (*Header) GetValidatorSet 

func (m *Header) GetValidatorSet() *types2.ValidatorSet

func (*Header) Marshal 

func (m *Header) Marshal() (dAtA []byte, err error)

func (*Header) MarshalTo 

func (m *Header) MarshalTo(dAtA []byte) (int, error)

func (*Header) MarshalToSizedBuffer 

func (m *Header) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*Header) ProtoMessage 

func (*Header) ProtoMessage()

func (*Header) Reset 

func (m *Header) Reset()

func (*Header) Size 

func (m *Header) Size() (n int)

func (*Header) String 

func (m *Header) String() string

func (*Header) Unmarshal 

func (m *Header) Unmarshal(dAtA []byte) error

func (Header) ValidateBasic 

func (h Header) ValidateBasic() error

ValidateBasic calls the SignedHeader ValidateBasic function and checks that validatorsets are not nil. NOTE: TrustedHeight and TrustedValidators may be empty when creating client with MsgCreateClient

func (*Header) XXX_DiscardUnknown 

func (m *Header) XXX_DiscardUnknown()

func (*Header) XXX_Marshal 

func (m *Header) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Header) XXX_Merge 

func (m *Header) XXX_Merge(src proto.Message)

func (*Header) XXX_Size 

func (m *Header) XXX_Size() int

func (*Header) XXX_Unmarshal 

func (m *Header) XXX_Unmarshal(b []byte) error

type LightClientModule 

type LightClientModule struct {
	// contains filtered or unexported fields
}

LightClientModule implements the core IBC api.LightClientModule interface.

func NewLightClientModule 

func NewLightClientModule(cdc codec.BinaryCodec, authority string) LightClientModule

NewLightClientModule creates and returns a new 07-tendermint LightClientModule.

func (LightClientModule) CheckForMisbehaviour 

func (l LightClientModule) CheckForMisbehaviour(ctx sdk.Context, clientID string, clientMsg exported.ClientMessage) bool

CheckForMisbehaviour obtains the client state associated with the client identifier and calls into the clientState.CheckForMisbehaviour method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) Initialize 

func (l LightClientModule) Initialize(ctx sdk.Context, clientID string, clientStateBz, consensusStateBz []byte) error

Initialize unmarshals the provided client and consensus states and performs basic validation. It calls into the clientState.Initialize method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) LatestHeight 

func (l LightClientModule) LatestHeight(ctx sdk.Context, clientID string) exported.Height

LatestHeight returns the latest height for the client state for the given client identifier. If no client is present for the provided client identifier a zero value height is returned.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) RecoverClient 

func (l LightClientModule) RecoverClient(ctx sdk.Context, clientID, substituteClientID string) error

RecoverClient asserts that the substitute client is a tendermint client. It obtains the client state associated with the subject client and calls into the subjectClientState.CheckSubstituteAndUpdateState method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (*LightClientModule) RegisterStoreProvider 

func (l *LightClientModule) RegisterStoreProvider(storeProvider exported.ClientStoreProvider)

RegisterStoreProvider is called by core IBC when a LightClientModule is added to the router. It allows the LightClientModule to set a ClientStoreProvider which supplies isolated prefix client stores to IBC light client instances.

func (LightClientModule) Status 

func (l LightClientModule) Status(ctx sdk.Context, clientID string) exported.Status

Status obtains the client state associated with the client identifier and calls into the clientState.Status method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) TimestampAtHeight 

func (l LightClientModule) TimestampAtHeight(
	ctx sdk.Context,
	clientID string,
	height exported.Height,
) (uint64, error)

TimestampAtHeight obtains the client state associated with the client identifier and calls into the clientState.GetTimestampAtHeight method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) UpdateState 

func (l LightClientModule) UpdateState(ctx sdk.Context, clientID string, clientMsg exported.ClientMessage) []exported.Height

UpdateState obtains the client state associated with the client identifier and calls into the clientState.UpdateState method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) UpdateStateOnMisbehaviour 

func (l LightClientModule) UpdateStateOnMisbehaviour(ctx sdk.Context, clientID string, clientMsg exported.ClientMessage)

UpdateStateOnMisbehaviour obtains the client state associated with the client identifier and calls into the clientState.UpdateStateOnMisbehaviour method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) VerifyClientMessage 

func (l LightClientModule) VerifyClientMessage(ctx sdk.Context, clientID string, clientMsg exported.ClientMessage) error

VerifyClientMessage obtains the client state associated with the client identifier and calls into the clientState.VerifyClientMessage method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) VerifyMembership 

func (l LightClientModule) VerifyMembership(
	ctx sdk.Context,
	clientID string,
	height exported.Height,
	delayTimePeriod uint64,
	delayBlockPeriod uint64,
	proof []byte,
	path exported.Path,
	value []byte,
) error

VerifyMembership obtains the client state associated with the client identifier and calls into the clientState.VerifyMembership method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) VerifyNonMembership 

func (l LightClientModule) VerifyNonMembership(
	ctx sdk.Context,
	clientID string,
	height exported.Height,
	delayTimePeriod uint64,
	delayBlockPeriod uint64,
	proof []byte,
	path exported.Path,
) error

VerifyNonMembership obtains the client state associated with the client identifier and calls into the clientState.VerifyNonMembership method.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

func (LightClientModule) VerifyUpgradeAndUpdateState 

func (l LightClientModule) VerifyUpgradeAndUpdateState(
	ctx sdk.Context,
	clientID string,
	newClient []byte,
	newConsState []byte,
	upgradeClientProof,
	upgradeConsensusStateProof []byte,
) error

VerifyUpgradeAndUpdateState obtains the client state associated with the client identifier and calls into the clientState.VerifyUpgradeAndUpdateState method. The new client and consensus states will be unmarshaled and an error is returned if the new client state is not at a height greater than the existing client.

CONTRACT: clientID is validated in 02-client router, thus clientID is assumed here to have the format 07-tendermint-{n}.

type Misbehaviour 

type Misbehaviour struct {
	// ClientID is deprecated
	ClientId string  `protobuf:"bytes,1,opt,name=client_id,json=clientId,proto3" json:"client_id,omitempty"` // Deprecated: Do not use.
	Header1  *Header `protobuf:"bytes,2,opt,name=header_1,json=header1,proto3" json:"header_1,omitempty"`
	Header2  *Header `protobuf:"bytes,3,opt,name=header_2,json=header2,proto3" json:"header_2,omitempty"`
}

Misbehaviour is a wrapper over two conflicting Headers that implements Misbehaviour interface expected by ICS-02

func NewMisbehaviour 

func NewMisbehaviour(clientID string, header1, header2 *Header) *Misbehaviour

NewMisbehaviour creates a new Misbehaviour instance.

func (Misbehaviour) ClientType 

func (Misbehaviour) ClientType() string

ClientType is Tendermint light client

func (*Misbehaviour) Descriptor 

func (*Misbehaviour) Descriptor() ([]byte, []int)

func (Misbehaviour) GetTime 

func (misbehaviour Misbehaviour) GetTime() time.Time

GetTime returns the timestamp at which misbehaviour occurred. It uses the maximum value from both headers to prevent producing an invalid header outside of the misbehaviour age range.

func (*Misbehaviour) Marshal 

func (m *Misbehaviour) Marshal() (dAtA []byte, err error)

func (*Misbehaviour) MarshalTo 

func (m *Misbehaviour) MarshalTo(dAtA []byte) (int, error)

func (*Misbehaviour) MarshalToSizedBuffer 

func (m *Misbehaviour) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*Misbehaviour) ProtoMessage 

func (*Misbehaviour) ProtoMessage()

func (*Misbehaviour) Reset 

func (m *Misbehaviour) Reset()

func (*Misbehaviour) Size 

func (m *Misbehaviour) Size() (n int)

func (*Misbehaviour) String 

func (m *Misbehaviour) String() string

func (*Misbehaviour) Unmarshal 

func (m *Misbehaviour) Unmarshal(dAtA []byte) error

func (Misbehaviour) ValidateBasic 

func (misbehaviour Misbehaviour) ValidateBasic() error

ValidateBasic implements Misbehaviour interface

func (*Misbehaviour) XXX_DiscardUnknown 

func (m *Misbehaviour) XXX_DiscardUnknown()

func (*Misbehaviour) XXX_Marshal 

func (m *Misbehaviour) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Misbehaviour) XXX_Merge 

func (m *Misbehaviour) XXX_Merge(src proto.Message)

func (*Misbehaviour) XXX_Size 

func (m *Misbehaviour) XXX_Size() int

func (*Misbehaviour) XXX_Unmarshal 

func (m *Misbehaviour) XXX_Unmarshal(b []byte) error

type StakingKeeper 

type StakingKeeper interface {
	GetHistoricalInfo(ctx context.Context, height int64) (stakingtypes.HistoricalInfo, error)
	UnbondingTime(ctx context.Context) (time.Duration, error)
}

StakingKeeper defines an expected interface for the tendermint ConsensusHost.

Source Files

View all Source files

Directories

Path Synopsis
internal
keeper

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