slashing

package
v1.3.1 Latest Latest
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 Go to latest Published: Jan 7, 2021 License: Apache-2.0 Imports: 29 Imported by: 0

Documentation

Overview

nolint

nolint

Index

Constants

View Source 
const (
	// ModuleName is the name of the module
	ModuleName = "slashing"

	// StoreKey is the store key string for slashing
	StoreKey = ModuleName

	// RouterKey is the message route for slashing
	RouterKey = ModuleName

	// QuerierRoute is the querier route for slashing
	QuerierRoute = ModuleName
)
View Source 
const (
	DefaultParamspace                         = ModuleName
	DefaultMaxEvidenceAge       int64         = 60 * 2 * 60
	DefaultSignedBlocksWindow   int64         = 100
	DefaultDowntimeJailDuration time.Duration = 60 * 10 * time.Second
	BlocksPerMinute                           = 12                        // 5 seconds a block
	BlocksPerDay                              = BlocksPerMinute * 60 * 24 // 17280
)

Default parameter namespace

View Source 
const MetricsSubsystem = "module_slashing"
View Source 
const (
	QueryParameters = "parameters"
)

Query endpoints supported by the slashing querier

Variables

View Source 
var (
	ValidatorSigningInfoKey         = []byte{0x01} // Prefix for signing info
	ValidatorMissedBlockBitArrayKey = []byte{0x02} // Prefix for missed block bit array
	ValidatorSlashingPeriodKey      = []byte{0x03} // Prefix for slashing period
	AddrPubkeyRelationKey           = []byte{0x04} // Prefix for address-pubkey relation
)

key prefix bytes

View Source 
var (
	DoubleSignJailEndTime          = time.Unix(253402300799, 0)
	DefaultMinSignedPerWindow      = sdk.NewDecWithPrec(5, 1)
	DefaultSlashFractionDoubleSign = sdk.NewDec(1).Quo(sdk.NewDec(20))
	DefaultSlashFractionDowntime   = sdk.NewDec(1).Quo(sdk.NewDec(100))
)

The Double Sign Jail period ends at Max Time supported by Amino (Dec 31, 9999 - 23:59:59 GMT)

View Source 
var (
	KeyMaxEvidenceAge          = []byte("MaxEvidenceAge")
	KeySignedBlocksWindow      = []byte("SignedBlocksWindow")
	KeyMinSignedPerWindow      = []byte("MinSignedPerWindow")
	KeyDoubleSignJailDuration  = []byte("DoubleSignJailDuration")
	KeyCensorshipJailDuration  = []byte("CensorshipJailDuration")
	KeyDowntimeJailDuration    = []byte("DowntimeJailDuration")
	KeySlashFractionDoubleSign = []byte("SlashFractionDoubleSign")
	KeySlashFractionDowntime   = []byte("SlashFractionDowntime")
	KeySlashFractionCensorship = []byte("SlashFractionCensorship")
)

Parameter store keys

Functions

func BeginBlocker 

func BeginBlocker(ctx sdk.Context, req abci.RequestBeginBlock, sk Keeper) sdk.Tags

slashing begin block functionality

func EndBlocker 

func EndBlocker(ctx sdk.Context, req abci.RequestEndBlock, sk Keeper) (tags sdk.Tags)

slashing end block functionality

func ErrBadValidatorAddr 

func ErrBadValidatorAddr(codespace sdk.CodespaceType) sdk.Error

func ErrMissingSelfDelegation 

func ErrMissingSelfDelegation(codespace sdk.CodespaceType) sdk.Error

func ErrNoValidatorForAddress 

func ErrNoValidatorForAddress(codespace sdk.CodespaceType) sdk.Error

func ErrSelfDelegationTooLowToUnjail 

func ErrSelfDelegationTooLowToUnjail(codespace sdk.CodespaceType) sdk.Error

func ErrValidatorJailed 

func ErrValidatorJailed(codespace sdk.CodespaceType) sdk.Error

func ErrValidatorNotJailed 

func ErrValidatorNotJailed(codespace sdk.CodespaceType) sdk.Error

func GetValidatorMissedBlockBitArrayKey 

func GetValidatorMissedBlockBitArrayKey(v sdk.ConsAddress, i int64) []byte

stored by *Tendermint* address (not operator address)

func GetValidatorMissedBlockBitArrayPrefixKey 

func GetValidatorMissedBlockBitArrayPrefixKey(v sdk.ConsAddress) []byte

stored by *Tendermint* address (not operator address)

func GetValidatorSigningInfoAddress 

func GetValidatorSigningInfoAddress(key []byte) (v sdk.ConsAddress)

extract the address from a validator signing info key

func GetValidatorSigningInfoKey 

func GetValidatorSigningInfoKey(v sdk.ConsAddress) []byte

stored by *Tendermint* address (not operator address)

func GetValidatorSlashingPeriodKey 

func GetValidatorSlashingPeriodKey(v sdk.ConsAddress, startHeight int64) []byte

stored by *Tendermint* address (not operator address) followed by start height

func GetValidatorSlashingPeriodPrefix 

func GetValidatorSlashingPeriodPrefix(v sdk.ConsAddress) []byte

stored by *Tendermint* address (not operator address)

func InitGenesis 

func InitGenesis(ctx sdk.Context, keeper Keeper, data GenesisState, validators []sdk.Validator)

InitGenesis initialize default parameters and the keeper's address to pubkey map

func NewHandler 

func NewHandler(k Keeper) sdk.Handler

func NewQuerier 

func NewQuerier(k Keeper, cdc *codec.Codec) sdk.Querier

NewQuerier creates a new querier for slashing clients.

func NewTestMsgCreateValidator 

func NewTestMsgCreateValidator(address sdk.ValAddress, pubKey crypto.PubKey, amt sdk.Int) staking.MsgCreateValidator

func ParamKeyTable 

func ParamKeyTable() params.KeyTable

ParamKeyTable for slashing module

func RegisterCodec 

func RegisterCodec(cdc *codec.Codec)

Register concrete types on codec codec

func ValidateGenesis 

func ValidateGenesis(data GenesisState) error

ValidateGenesis validates the slashing genesis parameters

Types

type CodeType 

type CodeType = sdk.CodeType

Local code type 

const (
	// Default slashing codespace
	DefaultCodespace sdk.CodespaceType = ModuleName

	CodeInvalidValidator      CodeType = 101
	CodeValidatorJailed       CodeType = 102
	CodeValidatorNotJailed    CodeType = 103
	CodeMissingSelfDelegation CodeType = 104
	CodeSelfDelegationTooLow  CodeType = 105
)

type GenesisState 

type GenesisState struct {
	Params       Params                          `json:"params"`
	SigningInfos map[string]ValidatorSigningInfo `json:"signing_infos"`
	MissedBlocks map[string][]MissedBlock        `json:"missed_blocks"`
}

GenesisState - all slashing state that must be provided at genesis

func DefaultGenesisState 

func DefaultGenesisState() GenesisState

DefaultGenesisState - default GenesisState used by Cosmos Hub

func ExportGenesis 

func ExportGenesis(ctx sdk.Context, keeper Keeper) (data GenesisState)

ExportGenesis writes the current store values to a genesis file, which can be imported again with InitGenesis

type Hooks 

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

Wrapper struct

func (Hooks) AfterDelegationModified 

func (h Hooks) AfterDelegationModified(_ sdk.Context, _ sdk.AccAddress, _ sdk.ValAddress)

func (Hooks) AfterValidatorBeginUnbonding 

func (h Hooks) AfterValidatorBeginUnbonding(_ sdk.Context, _ sdk.ConsAddress, _ sdk.ValAddress)

nolint - unused hooks

func (Hooks) AfterValidatorBonded 

func (h Hooks) AfterValidatorBonded(ctx sdk.Context, consAddr sdk.ConsAddress, valAddr sdk.ValAddress)

Implements sdk.ValidatorHooks

func (Hooks) AfterValidatorCreated 

func (h Hooks) AfterValidatorCreated(ctx sdk.Context, valAddr sdk.ValAddress)

Implements sdk.ValidatorHooks

func (Hooks) AfterValidatorRemoved 

func (h Hooks) AfterValidatorRemoved(ctx sdk.Context, consAddr sdk.ConsAddress, _ sdk.ValAddress)

Implements sdk.ValidatorHooks

func (Hooks) BeforeDelegationCreated 

func (h Hooks) BeforeDelegationCreated(_ sdk.Context, _ sdk.AccAddress, _ sdk.ValAddress)

func (Hooks) BeforeDelegationRemoved 

func (h Hooks) BeforeDelegationRemoved(_ sdk.Context, _ sdk.AccAddress, _ sdk.ValAddress)

func (Hooks) BeforeDelegationSharesModified 

func (h Hooks) BeforeDelegationSharesModified(_ sdk.Context, _ sdk.AccAddress, _ sdk.ValAddress)

func (Hooks) BeforeValidatorModified 

func (h Hooks) BeforeValidatorModified(_ sdk.Context, _ sdk.ValAddress)

func (Hooks) BeforeValidatorSlashed 

func (h Hooks) BeforeValidatorSlashed(_ sdk.Context, _ sdk.ValAddress, _ sdk.Dec)

type Keeper 

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

Keeper of the slashing store

func NewKeeper 

func NewKeeper(cdc *codec.Codec, key sdk.StoreKey, vs sdk.ValidatorSet, paramspace params.Subspace, codespace sdk.CodespaceType, metrics *Metrics) Keeper

NewKeeper creates a slashing keeper

func (Keeper) AfterValidatorBonded 

func (k Keeper) AfterValidatorBonded(ctx sdk.Context, address sdk.ConsAddress, _ sdk.ValAddress)

func (Keeper) AfterValidatorCreated 

func (k Keeper) AfterValidatorCreated(ctx sdk.Context, valAddr sdk.ValAddress)

When a validator is created, add the address-pubkey relation.

func (Keeper) AfterValidatorRemoved 

func (k Keeper) AfterValidatorRemoved(ctx sdk.Context, address sdk.ConsAddress)

When a validator is removed, delete the address-pubkey relation.

func (Keeper) CensorshipJailDuration 

func (k Keeper) CensorshipJailDuration(ctx sdk.Context) (res time.Duration)

Censorship jail duration

func (Keeper) DowntimeJailDuration 

func (k Keeper) DowntimeJailDuration(ctx sdk.Context) (res time.Duration)

Downtime unbond duration

func (Keeper) GetParams 

func (k Keeper) GetParams(ctx sdk.Context) (params Params)

GetParams returns the total set of slashing parameters.

func (Keeper) Hooks 

func (k Keeper) Hooks() Hooks

Return the wrapper struct

func (Keeper) IterateValidatorMissedBlockBitArray 

func (k Keeper) IterateValidatorMissedBlockBitArray(ctx sdk.Context, address sdk.ConsAddress, handler func(index int64, missed bool) (stop bool))

Stored by *validator* address (not operator address)

func (Keeper) IterateValidatorSigningInfos 

func (k Keeper) IterateValidatorSigningInfos(ctx sdk.Context, handler func(address sdk.ConsAddress, info ValidatorSigningInfo) (stop bool))

Stored by *validator* address (not operator address)

func (Keeper) MaxEvidenceAge 

func (k Keeper) MaxEvidenceAge(ctx sdk.Context) (res time.Duration)

MaxEvidenceAge - max age for evidence

func (Keeper) MinSignedPerWindow 

func (k Keeper) MinSignedPerWindow(ctx sdk.Context) int64

Downtime slashing threshold

func (Keeper) SetValidatorSigningInfo 

func (k Keeper) SetValidatorSigningInfo(ctx sdk.Context, address sdk.ConsAddress, info ValidatorSigningInfo)

Stored by *validator* address (not operator address)

func (Keeper) SignedBlocksWindow 

func (k Keeper) SignedBlocksWindow(ctx sdk.Context) (res int64)

SignedBlocksWindow - sliding window for downtime slashing

func (Keeper) SlashFractionCensorship 

func (k Keeper) SlashFractionCensorship(ctx sdk.Context) (res sdk.Dec)

Slash fraction for Censorship

func (Keeper) SlashFractionDoubleSign 

func (k Keeper) SlashFractionDoubleSign(ctx sdk.Context) (res sdk.Dec)

SlashFractionDoubleSign

func (Keeper) SlashFractionDowntime 

func (k Keeper) SlashFractionDowntime(ctx sdk.Context) (res sdk.Dec)

SlashFractionDowntime

type Metrics 

type Metrics struct {
	MissedBlocks metrics.Gauge
}

func NopMetrics 

func NopMetrics() *Metrics

func PrometheusMetrics 

func PrometheusMetrics(config *cfg.InstrumentationConfig) *Metrics

PrometheusMetrics returns Metrics build using Prometheus client library.

type MissedBlock 

type MissedBlock struct {
	Index  int64 `json:"index"`
	Missed bool  `json:"missed"`
}

MissedBlock

type MsgUnjail 

type MsgUnjail struct {
	ValidatorAddr sdk.ValAddress `json:"address"` // address of the validator operator
}

MsgUnjail - struct for unjailing jailed validator

func NewMsgUnjail 

func NewMsgUnjail(validatorAddr sdk.ValAddress) MsgUnjail

func (MsgUnjail) GetSignBytes 

func (msg MsgUnjail) GetSignBytes() []byte

get the bytes for the message signer to sign on

func (MsgUnjail) GetSigners 

func (msg MsgUnjail) GetSigners() []sdk.AccAddress

func (MsgUnjail) Route 

func (msg MsgUnjail) Route() string

nolint

func (MsgUnjail) Type 

func (msg MsgUnjail) Type() string

func (MsgUnjail) ValidateBasic 

func (msg MsgUnjail) ValidateBasic() sdk.Error

quick validity check

type Params 

type Params struct {
	MaxEvidenceAge          int64         `json:"max_evidence_age"`
	SignedBlocksWindow      int64         `json:"signed_blocks_window"`
	MinSignedPerWindow      sdk.Dec       `json:"min_signed_per_window"`
	DoubleSignJailDuration  time.Duration `json:"double_sign_jail_duration"`
	CensorshipJailDuration  time.Duration `json:"censorship_jail_duration"`
	DowntimeJailDuration    time.Duration `json:"downtime_jail_duration"`
	SlashFractionDoubleSign sdk.Dec       `json:"slash_fraction_double_sign"`
	SlashFractionDowntime   sdk.Dec       `json:"slash_fraction_downtime"`
	SlashFractionCensorship sdk.Dec       `json:"slash_fraction_censorship"`
}

Params - used for initializing default parameter for slashing at genesis

func DefaultParams 

func DefaultParams() Params

Default parameters for this module

func (*Params) GetParamSpace 

func (p *Params) GetParamSpace() string

func (*Params) ParamSetPairs 

func (p *Params) ParamSetPairs() params.ParamSetPairs

Implements params.ParamSet

func (Params) String 

func (p Params) String() string

func (*Params) StringFromBytes 

func (p *Params) StringFromBytes(cdc *codec.Codec, key string, bytes []byte) (string, error)

func (*Params) Validate 

func (p *Params) Validate(key string, value string) (interface{}, sdk.Error)

type ValidatorSigningInfo 

type ValidatorSigningInfo struct {
	StartHeight         int64     `json:"start_height"`          // height at which validator was first a candidate OR was unjailed
	IndexOffset         int64     `json:"index_offset"`          // index offset into signed block bit array
	JailedUntil         time.Time `json:"jailed_until"`          // timestamp validator cannot be unjailed until
	Tombstoned          bool      `json:"tombstoned"`            // whether or not a validator has been tombstoned (killed out of validator set)
	MissedBlocksCounter int64     `json:"missed_blocks_counter"` // missed blocks counter (to avoid scanning the array every time)
}

Signing info for a validator

func NewValidatorSigningInfo 

func NewValidatorSigningInfo(startHeight, indexOffset int64, jailedUntil time.Time,
	tombstoned bool, missedBlocksCounter int64) ValidatorSigningInfo

Construct a new `ValidatorSigningInfo` struct

func (ValidatorSigningInfo) String 

func (i ValidatorSigningInfo) String() string

Return human readable signing info

Source Files

View all Source files

Directories

Path Synopsis
cli
rest

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