/
genesis.go
51 lines (43 loc) · 1.55 KB
/
genesis.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.ZETA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package abci
import (
"encoding/json"
"errors"
)
var ErrNoNetworkGenesisState = errors.New("no network genesis state")
type GenesisState struct {
// ReplayAttackThreshold protects the network against replay attacks. It sets a
// toleration thershold between the current block in the chain and the block
// heigh specified in the Tx. Tx with blocks height >= than (chain's height -
// distance) are rejected with a AbciTxnRejected. It also keeps a ring-buffer
// to cache seen Tx. The Ring buffer size defines the number of block to cache,
// each block can hold an unlimited number of Txs.
ReplayAttackThreshold uint `json:"replay_attack_threshold"`
}
func DefaultGenesis() GenesisState {
return GenesisState{
ReplayAttackThreshold: 150,
}
}
func LoadGenesisState(bytes []byte) (*GenesisState, error) {
state := struct {
Network *GenesisState `json:"network"`
}{}
if err := json.Unmarshal(bytes, &state); err != nil {
return nil, err
}
if state.Network == nil {
return nil, ErrNoNetworkGenesisState
}
return state.Network, nil
}