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core, contracts/casper: init transactions for casper #162

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81 changes: 81 additions & 0 deletions contracts/casper.go
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28 changes: 28 additions & 0 deletions contracts/casper/genesis.json
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Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
{
"config": {
"casperBlock": 0,
"eip150Block": 0
},
"nonce": "0x0000000000000056",
"difficulty": "0x2000",
"mixhash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"coinbase": "0x0000000000000000000000000000000000000000",
"timestamp": "0x00",
"parentHash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"extraData": "0x11bbe8db4e347b4e8c937c1c8370e4b5ed33adb3db69cbdb7a38e1e50b1b82fa",
"gasLimit": "0x5f5e100",
"alloc": {
"0xf3e1139f77ad1c643b7f7f8271b08b7084e8b751": {
"balance": "5001002003004005006007008"
},
"0x39ba083c30fce59883775fc729bbe1f9de4dee11": {
"balance": "1001002003004005006007008"
},
"0xd7a3bd6c9ea32eff147d067f907ae6b22d436f91": {
"balance": "1001002003004005006007008"
},
"0xea0f0d55ee82edf248ed648a9a8d213fba8b5081": {
"balance": "5125001002003004005006"
}
}
}
33 changes: 28 additions & 5 deletions core/genesis.go
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Original file line number Diff line number Diff line change
Expand Up @@ -28,8 +28,10 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/contracts"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/params"
Expand Down Expand Up @@ -235,7 +237,7 @@ func (g *Genesis) ToBlock(db ethdb.Database) *types.Block {
}
}
root := statedb.IntermediateRoot(false)
head := &types.Header{
header := &types.Header{
Number: new(big.Int).SetUint64(g.Number),
Nonce: types.EncodeNonce(g.Nonce),
Time: new(big.Int).SetUint64(g.Timestamp),
Expand All @@ -249,15 +251,36 @@ func (g *Genesis) ToBlock(db ethdb.Database) *types.Block {
Root: root,
}
if g.GasLimit == 0 {
head.GasLimit = params.GenesisGasLimit
header.GasLimit = params.GenesisGasLimit
}
if g.Difficulty == nil {
head.Difficulty = params.GenesisDifficulty
header.Difficulty = params.GenesisDifficulty
}

if g.Config != nil && g.Config.IsCasper(header.Number) {
// TODO: need to put in chain config, but how to ensure it's secure
casperPrivateKey := "a27df3e4f46e7792ea951d7abf853b5a5ac3226bacd57286b9df98324386532f"

// Init casper transactions
txs, _, _ := contracts.CasperInitializers(0, casperPrivateKey)
// Add init balance to null sender address
nullSenderAddr := common.HexToAddress("56f8fa946c92a225444170f59fba81707c755161")
statedb.AddBalance(nullSenderAddr, new(big.Int).Exp(big.NewInt(10), big.NewInt(25), nil))

for _, tx := range txs {
_, used, err := ApplyTransaction(g.Config, nil, &g.Coinbase, new(GasPool).AddGas(g.GasLimit), statedb, header, tx, new(uint64), vm.Config{})
if err != nil {
log.Info("Failed to apply transaction", "hash", tx.Hash().Hex(), "err", err)
}

log.Info("Apply Casper tx", "hash", tx.Hash().Hex(), "used", used, "root", statedb.IntermediateRoot(false).Hex())
}
header.Root = statedb.IntermediateRoot(false)
}
statedb.Commit(false)
statedb.Database().TrieDB().Commit(root, true)
statedb.Database().TrieDB().Commit(header.Root, true)

return types.NewBlock(head, nil, nil, nil)
return types.NewBlock(header, nil, nil, nil)
}

// Commit writes the block and state of a genesis specification to the database.
Expand Down
2 changes: 1 addition & 1 deletion params/config.go
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Expand Up @@ -174,7 +174,7 @@ func (c *ChainConfig) IsHomestead(num *big.Int) bool {
return isForked(c.HomesteadBlock, num)
}

// IsDAO returns whether num is either equal to the DAO fork block or greater.
// IsDAOFork returns whether num is either equal to the DAO fork block or greater.
func (c *ChainConfig) IsDAOFork(num *big.Int) bool {
return isForked(c.DAOForkBlock, num)
}
Expand Down