evidence

package
v0.47.0 Latest Latest
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 Go to latest Published: Feb 1, 2022 License: Apache-2.0 Imports: 23 Imported by: 0

README

Evidence

  • Evidence - Evidence handling for double signing, misbehaviour, etc.

Documentation

Overview

Package evidence implements a Cosmos SDK module, per ADR 009, that allows for the submission and handling of arbitrary evidence of misbehavior.

All concrete evidence types must implement the Evidence interface contract. Submitted evidence is first routed through the evidence module's Router in which it attempts to find a corresponding Handler for that specific evidence type. Each evidence type must have a Handler registered with the evidence module's keeper in order for it to be successfully executed.

Each corresponding handler must also fulfill the Handler interface contract. The Handler for a given Evidence type can perform any arbitrary state transitions such as slashing, jailing, and tombstoning. This provides developers with great flexibility in designing evidence handling.

A full setup of the evidence module may look something as follows: 

ModuleBasics = module.NewBasicManager(
  // ...,
  evidence.AppModuleBasic{},
)

// First, create the keeper
evidenceKeeper := evidence.NewKeeper(
  appCodec, keys[evidence.StoreKey], &app.StakingKeeper, app.SlashingKeeper,
)

// Second, create the evidence Handler and register all desired routes.
evidenceRouter := evidence.NewRouter().
  AddRoute(evidenceRoute, evidenceHandler).
  AddRoute(..., ...)

evidenceKeeper.SetRouter(evidenceRouter)

app.EvidenceKeeper = *evidenceKeeper

app.mm = module.NewManager(
  // ...
  evidence.NewAppModule(app.EvidenceKeeper),
)

// Remaining application bootstrapping...

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BeginBlocker 

func BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock, k keeper.Keeper)

BeginBlocker iterates through and handles any newly discovered evidence of misbehavior submitted by Tendermint. Currently, only equivocation is handled.

func ExportGenesis 

func ExportGenesis(ctx sdk.Context, k keeper.Keeper) *types.GenesisState

ExportGenesis returns the evidence module's exported genesis.

func InitGenesis 

func InitGenesis(ctx sdk.Context, k keeper.Keeper, gs *types.GenesisState)

InitGenesis initializes the evidence module's state from a provided genesis state.

Types

type AppModule 

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

AppModule implements the AppModule interface for the evidence module.

func NewAppModule 

func NewAppModule(keeper keeper.Keeper) AppModule

func (AppModule) BeginBlock 

func (am AppModule) BeginBlock(ctx sdk.Context, req abci.RequestBeginBlock)

BeginBlock executes all ABCI BeginBlock logic respective to the evidence module.

func (AppModule) ConsensusVersion 

func (AppModule) ConsensusVersion() uint64

ConsensusVersion implements AppModule/ConsensusVersion.

func (AppModule) EndBlock 

func (am AppModule) EndBlock(ctx sdk.Context, _ abci.RequestEndBlock) []abci.ValidatorUpdate

EndBlock executes all ABCI EndBlock logic respective to the evidence module. It returns no validator updates.

func (AppModule) ExportGenesis 

func (am AppModule) ExportGenesis(ctx sdk.Context, cdc codec.JSONCodec) json.RawMessage

ExportGenesis returns the evidence module's exported genesis state as raw JSON bytes.

func (AppModule) GenerateGenesisState 

func (AppModule) GenerateGenesisState(simState *module.SimulationState)

GenerateGenesisState creates a randomized GenState of the evidence module.

func (AppModule) InitGenesis 

func (am AppModule) InitGenesis(ctx sdk.Context, cdc codec.JSONCodec, bz json.RawMessage) []abci.ValidatorUpdate

InitGenesis performs the evidence module's genesis initialization It returns no validator updates.

func (AppModule) LegacyQuerierHandler 

func (am AppModule) LegacyQuerierHandler(legacyQuerierCdc *codec.LegacyAmino) sdk.Querier

LegacyQuerierHandler returns the evidence module's Querier.

func (AppModule) Name 

func (am AppModule) Name() string

Name returns the evidence module's name.

func (AppModule) ProposalContents 

func (am AppModule) ProposalContents(simState module.SimulationState) []simtypes.WeightedProposalContent

ProposalContents returns all the evidence content functions used to simulate governance proposals.

func (AppModule) QuerierRoute 

func (AppModule) QuerierRoute() string

QuerierRoute returns the evidence module's query routing key.

func (AppModule) RandomizedParams 

func (AppModule) RandomizedParams(r *rand.Rand) []simtypes.ParamChange

RandomizedParams creates randomized evidence param changes for the simulator.

func (AppModule) RegisterInvariants 

func (am AppModule) RegisterInvariants(ir sdk.InvariantRegistry)

RegisterInvariants registers the evidence module's invariants.

func (AppModule) RegisterServices 

func (am AppModule) RegisterServices(cfg module.Configurator)

RegisterServices registers module services.

func (AppModule) RegisterStoreDecoder 

func (am AppModule) RegisterStoreDecoder(sdr sdk.StoreDecoderRegistry)

RegisterStoreDecoder registers a decoder for evidence module's types

func (AppModule) Route deprecated 

func (am AppModule) Route() sdk.Route

Deprecated: Route returns the evidence module's message routing key.

func (AppModule) WeightedOperations 

func (am AppModule) WeightedOperations(simState module.SimulationState) []simtypes.WeightedOperation

WeightedOperations returns the all the gov module operations with their respective weights.

type AppModuleBasic 

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

AppModuleBasic implements the AppModuleBasic interface for the evidence module.

func NewAppModuleBasic 

func NewAppModuleBasic(evidenceHandlers ...eviclient.EvidenceHandler) AppModuleBasic

NewAppModuleBasic crates a AppModuleBasic without the codec.

func (AppModuleBasic) DefaultGenesis 

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

DefaultGenesis returns the evidence module's default genesis state.

func (AppModuleBasic) GetQueryCmd 

func (AppModuleBasic) GetQueryCmd() *cobra.Command

GetQueryCmd returns the evidence module's root query command.

func (AppModuleBasic) GetTxCmd 

func (a AppModuleBasic) GetTxCmd() *cobra.Command

GetTxCmd returns the evidence module's root tx command.

func (AppModuleBasic) Name 

func (AppModuleBasic) Name() string

Name returns the evidence module's name.

func (AppModuleBasic) RegisterGRPCGatewayRoutes 

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

RegisterGRPCGatewayRoutes registers the gRPC Gateway routes for the evidence module.

func (AppModuleBasic) RegisterInterfaces 

func (AppModuleBasic) RegisterInterfaces(registry codectypes.InterfaceRegistry)

func (AppModuleBasic) RegisterLegacyAminoCodec 

func (AppModuleBasic) RegisterLegacyAminoCodec(cdc *codec.LegacyAmino)

RegisterLegacyAminoCodec registers the evidence module's types to the LegacyAmino codec.

func (AppModuleBasic) RegisterRESTRoutes 

func (AppModuleBasic) RegisterRESTRoutes(_ client.Context, _ *mux.Router)

RegisterRESTRoutes registers the evidence module's REST service handlers. Deprecated: RegisterRESTRoutes is deprecated. `x/evidence` legacy REST implementation has been removed from the SDK.

func (AppModuleBasic) ValidateGenesis 

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

ValidateGenesis performs genesis state validation for the evidence module.

Source Files

View all Source files

Directories

Path Synopsis
cli
testutil
migrations
v038
Package v038 is used for legacy migration scripts.
 Package v038 is used for legacy migration scripts.
v040
DONTCOVER Package types is a reverse proxy.
 DONTCOVER Package types is a reverse proxy.

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