diff options
Diffstat (limited to 'params/config.go')
| -rw-r--r-- | params/config.go | 56 |
1 files changed, 51 insertions, 5 deletions
diff --git a/params/config.go b/params/config.go index c59c748ac..e79d4ffc9 100644 --- a/params/config.go +++ b/params/config.go @@ -17,10 +17,12 @@ package params import ( + "encoding/binary" "fmt" "math/big" "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/crypto" ) // Genesis hashes to enforce below configs on. @@ -40,6 +42,12 @@ var TrustedCheckpoints = map[common.Hash]*TrustedCheckpoint{ GoerliGenesisHash: GoerliTrustedCheckpoint, } +// CheckpointOracles associates each known checkpoint oracles with the genesis hash of +// the chain it belongs to. +var CheckpointOracles = map[common.Hash]*CheckpointOracleConfig{ + RinkebyGenesisHash: RinkebyCheckpointOracle, +} + var ( // MainnetChainConfig is the chain parameters to run a node on the main network. MainnetChainConfig = &ChainConfig{ @@ -59,7 +67,6 @@ var ( // MainnetTrustedCheckpoint contains the light client trusted checkpoint for the main network. MainnetTrustedCheckpoint = &TrustedCheckpoint{ - Name: "mainnet", SectionIndex: 227, SectionHead: common.HexToHash("0xa2e0b25d72c2fc6e35a7f853cdacb193b4b4f95c606accf7f8fa8415283582c7"), CHTRoot: common.HexToHash("0xf69bdd4053b95b61a27b106a0e86103d791edd8574950dc96aa351ab9b9f1aa0"), @@ -84,7 +91,6 @@ var ( // TestnetTrustedCheckpoint contains the light client trusted checkpoint for the Ropsten test network. TestnetTrustedCheckpoint = &TrustedCheckpoint{ - Name: "testnet", SectionIndex: 161, SectionHead: common.HexToHash("0x5378afa734e1feafb34bcca1534c4d96952b754579b96a4afb23d5301ecececc"), CHTRoot: common.HexToHash("0x1cf2b071e7443a62914362486b613ff30f60cea0d9c268ed8c545f876a3ee60c"), @@ -112,13 +118,24 @@ var ( // RinkebyTrustedCheckpoint contains the light client trusted checkpoint for the Rinkeby test network. RinkebyTrustedCheckpoint = &TrustedCheckpoint{ - Name: "rinkeby", SectionIndex: 125, SectionHead: common.HexToHash("0x8a738386f6bb34add15846f8f49c4c519a2f32519096e792b9f43bcb407c831c"), CHTRoot: common.HexToHash("0xa1e5720a9bad4dce794f129e4ac6744398197b652868011486a6f89c8ec84a75"), BloomRoot: common.HexToHash("0xa3048fe8b7e30f77f11bc755a88478363d7d3e71c2bdfe4e8ab9e269cd804ba2"), } + // RinkebyCheckpointOracle contains a set of configs for the Rinkeby test network oracle. + RinkebyCheckpointOracle = &CheckpointOracleConfig{ + Address: common.HexToAddress("0xebe8eFA441B9302A0d7eaECc277c09d20D684540"), + Signers: []common.Address{ + common.HexToAddress("0xd9c9cd5f6779558b6e0ed4e6acf6b1947e7fa1f3"), // Peter + common.HexToAddress("0x78d1ad571a1a09d60d9bbf25894b44e4c8859595"), // Martin + common.HexToAddress("0x286834935f4A8Cfb4FF4C77D5770C2775aE2b0E7"), // Zsolt + common.HexToAddress("0xb86e2B0Ab5A4B1373e40c51A7C712c70Ba2f9f8E"), // Gary + }, + Threshold: 2, + } + // GoerliChainConfig contains the chain parameters to run a node on the Görli test network. GoerliChainConfig = &ChainConfig{ ChainID: big.NewInt(5), @@ -139,7 +156,6 @@ var ( // GoerliTrustedCheckpoint contains the light client trusted checkpoint for the Görli test network. GoerliTrustedCheckpoint = &TrustedCheckpoint{ - Name: "goerli", SectionIndex: 9, SectionHead: common.HexToHash("0x8e223d827391eee53b07cb8ee057dbfa11c93e0b45352188c783affd7840a921"), CHTRoot: common.HexToHash("0xe0a817ac69b36c1e437c5b0cff9e764853f5115702b5f66d451b665d6afb7e78"), @@ -169,13 +185,43 @@ var ( // used to start light syncing from this checkpoint and avoid downloading the // entire header chain while still being able to securely access old headers/logs. type TrustedCheckpoint struct { - Name string `json:"-"` SectionIndex uint64 `json:"sectionIndex"` SectionHead common.Hash `json:"sectionHead"` CHTRoot common.Hash `json:"chtRoot"` BloomRoot common.Hash `json:"bloomRoot"` } +// HashEqual returns an indicator comparing the itself hash with given one. +func (c *TrustedCheckpoint) HashEqual(hash common.Hash) bool { + if c.Empty() { + return hash == common.Hash{} + } + return c.Hash() == hash +} + +// Hash returns the hash of checkpoint's four key fields(index, sectionHead, chtRoot and bloomTrieRoot). +func (c *TrustedCheckpoint) Hash() common.Hash { + buf := make([]byte, 8+3*common.HashLength) + binary.BigEndian.PutUint64(buf, c.SectionIndex) + copy(buf[8:], c.SectionHead.Bytes()) + copy(buf[8+common.HashLength:], c.CHTRoot.Bytes()) + copy(buf[8+2*common.HashLength:], c.BloomRoot.Bytes()) + return crypto.Keccak256Hash(buf) +} + +// Empty returns an indicator whether the checkpoint is regarded as empty. +func (c *TrustedCheckpoint) Empty() bool { + return c.SectionHead == (common.Hash{}) || c.CHTRoot == (common.Hash{}) || c.BloomRoot == (common.Hash{}) +} + +// CheckpointOracleConfig represents a set of checkpoint contract(which acts as an oracle) +// config which used for light client checkpoint syncing. +type CheckpointOracleConfig struct { + Address common.Address `json:"address"` + Signers []common.Address `json:"signers"` + Threshold uint64 `json:"threshold"` +} + // ChainConfig is the core config which determines the blockchain settings. // // ChainConfig is stored in the database on a per block basis. This means |