From a87089fd2dc08a69a4a4f1ef93db9a2871d819a3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= Date: Fri, 8 Jul 2016 18:48:17 +0300 Subject: cmd, core, miner: add extradata validation to consensus rules --- miner/worker.go | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'miner/worker.go') diff --git a/miner/worker.go b/miner/worker.go index 7197a33ba..ba0085d52 100644 --- a/miner/worker.go +++ b/miner/worker.go @@ -17,6 +17,7 @@ package miner import ( + "bytes" "fmt" "math/big" "sync" @@ -469,12 +470,17 @@ func (self *worker) commitNewWork() { Extra: self.extra, Time: big.NewInt(tstamp), } - // If we are doing a DAO hard-fork check whether to override the extra-data or not + // If we are care about TheDAO hard-fork check whether to override the extra-data or not if daoBlock := self.config.DAOForkBlock; daoBlock != nil { // Check whether the block is among the fork extra-override range limit := new(big.Int).Add(daoBlock, params.DAOForkExtraRange) if daoBlock.Cmp(header.Number) <= 0 && header.Number.Cmp(limit) < 0 { - header.Extra = common.CopyBytes(params.DAOForkBlockExtra) + // Depending whether we support or oppose the fork, override differently + if self.config.DAOForkSupport { + header.Extra = common.CopyBytes(params.DAOForkBlockExtra) + } else if bytes.Compare(header.Extra, params.DAOForkBlockExtra) == 0 { + header.Extra = []byte{} // If miner opposes, don't let it use the reserved extra-data + } } } previous := self.current -- cgit v1.2.3