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cosmos-sdk
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Split slashing params & signing info into separate files

This commit is contained in:
Christopher Goes 2018-05-28 23:24:58 +02:00
parent bfa9d5f914
commit 93f1cb45cc
No known key found for this signature in database
GPG Key ID: E828D98232D328D3
3 changed files with 97 additions and 85 deletions
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85
x/slashing/keeper.go
View File

@ -1,7 +1,6 @@
package slashing
import (
"encoding/binary"
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
@ -10,37 +9,6 @@ import (
crypto "github.com/tendermint/go-crypto"
)
const (
// MaxEvidenceAge - Max age for evidence - 21 days (3 weeks)
// TODO Should this be a governance parameter or just modifiable with SoftwareUpgradeProposals?
// MaxEvidenceAge = 60 * 60 * 24 * 7 * 3
// TODO Temporarily set to 2 minutes for testnets.
MaxEvidenceAge int64 = 60 * 2
// SignedBlocksWindow - sliding window for downtime slashing
// TODO Governance parameter?
// TODO Temporarily set to 100 blocks for testnets
SignedBlocksWindow int64 = 100
// Downtime slashing threshold - 50%
// TODO Governance parameter?
MinSignedPerWindow int64 = SignedBlocksWindow / 2
// Downtime unbond duration - 1 day
// TODO Governance parameter?
DowntimeUnbondDuration int64 = 86400
)
var (
// SlashFractionDoubleSign - currently 5%
// TODO Governance parameter?
SlashFractionDoubleSign = sdk.NewRat(1).Quo(sdk.NewRat(20))
// SlashFractionDowntime - currently 1%
// TODO Governance parameter?
SlashFractionDowntime = sdk.NewRat(1).Quo(sdk.NewRat(100))
)
// Keeper of the slashing store
type Keeper struct {
storeKey sdk.StoreKey
@ -104,56 +72,3 @@ func (k Keeper) handleValidatorSignature(ctx sdk.Context, pubkey crypto.PubKey,
k.setValidatorSigningInfo(ctx, address, signInfo)
}
}
func (k Keeper) getValidatorSigningInfo(ctx sdk.Context, address sdk.Address) (info validatorSigningInfo, found bool) {
store := ctx.KVStore(k.storeKey)
bz := store.Get(validatorSigningInfoKey(address))
if bz == nil {
found = false
} else {
k.cdc.MustUnmarshalBinary(bz, &info)
found = true
}
return
}
func (k Keeper) setValidatorSigningInfo(ctx sdk.Context, address sdk.Address, info validatorSigningInfo) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshalBinary(info)
store.Set(validatorSigningInfoKey(address), bz)
}
func (k Keeper) getValidatorSigningBitArray(ctx sdk.Context, address sdk.Address, index int64) (signed bool) {
store := ctx.KVStore(k.storeKey)
bz := store.Get(validatorSigningBitArrayKey(address, index))
if bz == nil {
// lazy: treat empty key as unsigned
signed = false
} else {
k.cdc.MustUnmarshalBinary(bz, &signed)
}
return
}
func (k Keeper) setValidatorSigningBitArray(ctx sdk.Context, address sdk.Address, index int64, signed bool) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshalBinary(signed)
store.Set(validatorSigningBitArrayKey(address, index), bz)
}
type validatorSigningInfo struct {
StartHeight int64 `json:"start_height"`
IndexOffset int64 `json:"index_offset"`
JailedUntil int64 `json:"jailed_until"`
SignedBlocksCounter int64 `json:"signed_blocks_counter"`
}
func validatorSigningInfoKey(v sdk.Address) []byte {
return append([]byte{0x01}, v.Bytes()...)
}
func validatorSigningBitArrayKey(v sdk.Address, i int64) []byte {
b := make([]byte, 8)
binary.LittleEndian.PutUint64(b, uint64(i))
return append([]byte{0x02}, append(v.Bytes(), b...)...)
}

37
x/slashing/params.go Normal file
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@ -0,0 +1,37 @@
package slashing
import (
sdk "github.com/cosmos/cosmos-sdk/types"
)
const (
// MaxEvidenceAge - Max age for evidence - 21 days (3 weeks)
// TODO Should this be a governance parameter or just modifiable with SoftwareUpgradeProposals?
// MaxEvidenceAge = 60 * 60 * 24 * 7 * 3
// TODO Temporarily set to 2 minutes for testnets.
MaxEvidenceAge int64 = 60 * 2
// SignedBlocksWindow - sliding window for downtime slashing
// TODO Governance parameter?
// TODO Temporarily set to 100 blocks for testnets
SignedBlocksWindow int64 = 100
// Downtime slashing threshold - 50%
// TODO Governance parameter?
MinSignedPerWindow int64 = SignedBlocksWindow / 2
// Downtime unbond duration
// TODO Governance parameter?
// TODO Temporarily set to 6 hours for testnets
DowntimeUnbondDuration int64 = 60 * 60 * 6
)
var (
// SlashFractionDoubleSign - currently 5%
// TODO Governance parameter?
SlashFractionDoubleSign = sdk.NewRat(1).Quo(sdk.NewRat(20))
// SlashFractionDowntime - currently 1%
// TODO Governance parameter?
SlashFractionDowntime = sdk.NewRat(1).Quo(sdk.NewRat(100))
)

60
x/slashing/signing_info.go Normal file
View File

@ -0,0 +1,60 @@
package slashing
import (
"encoding/binary"
sdk "github.com/cosmos/cosmos-sdk/types"
)
func (k Keeper) getValidatorSigningInfo(ctx sdk.Context, address sdk.Address) (info validatorSigningInfo, found bool) {
store := ctx.KVStore(k.storeKey)
bz := store.Get(validatorSigningInfoKey(address))
if bz == nil {
found = false
} else {
k.cdc.MustUnmarshalBinary(bz, &info)
found = true
}
return
}
func (k Keeper) setValidatorSigningInfo(ctx sdk.Context, address sdk.Address, info validatorSigningInfo) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshalBinary(info)
store.Set(validatorSigningInfoKey(address), bz)
}
func (k Keeper) getValidatorSigningBitArray(ctx sdk.Context, address sdk.Address, index int64) (signed bool) {
store := ctx.KVStore(k.storeKey)
bz := store.Get(validatorSigningBitArrayKey(address, index))
if bz == nil {
// lazy: treat empty key as unsigned
signed = false
} else {
k.cdc.MustUnmarshalBinary(bz, &signed)
}
return
}
func (k Keeper) setValidatorSigningBitArray(ctx sdk.Context, address sdk.Address, index int64, signed bool) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshalBinary(signed)
store.Set(validatorSigningBitArrayKey(address, index), bz)
}
type validatorSigningInfo struct {
StartHeight int64 `json:"start_height"`
IndexOffset int64 `json:"index_offset"`
JailedUntil int64 `json:"jailed_until"`
SignedBlocksCounter int64 `json:"signed_blocks_counter"`
}
func validatorSigningInfoKey(v sdk.Address) []byte {
return append([]byte{0x01}, v.Bytes()...)
}
func validatorSigningBitArrayKey(v sdk.Address, i int64) []byte {
b := make([]byte, 8)
binary.LittleEndian.PutUint64(b, uint64(i))
return append([]byte{0x02}, append(v.Bytes(), b...)...)
}