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| author | Jeffrey Wilcke <geffobscura@gmail.com> | 2015-08-07 18:12:05 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <geffobscura@gmail.com> | 2015-08-07 18:24:44 +0800 |
| commit | 132df860d90c163a8be55260bdd219892f9e1bef (patch) | |
| tree | 9cb6baee47979b9a0d864b72466d0d15ecd08185 /miner/miner.go | |
| parent | 785b3e7a575f26f3c33e3369d8a75fb131f90584 (diff) | |
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miner, rpc: added length check for extra data
Diffstat (limited to 'miner/miner.go')
| -rw-r--r-- | miner/miner.go | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/miner/miner.go b/miner/miner.go index bf6a48802..3095d9828 100644 --- a/miner/miner.go +++ b/miner/miner.go @@ -18,6 +18,7 @@ package miner import ( + "fmt" "math/big" "sync/atomic" @@ -29,6 +30,7 @@ import ( "github.com/ethereum/go-ethereum/event" "github.com/ethereum/go-ethereum/logger" "github.com/ethereum/go-ethereum/logger/glog" + "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/pow" ) @@ -143,8 +145,13 @@ func (self *Miner) HashRate() int64 { return self.pow.GetHashrate() } -func (self *Miner) SetExtra(extra []byte) { +func (self *Miner) SetExtra(extra []byte) error { + if uint64(len(extra)) > params.MaximumExtraDataSize.Uint64() { + return fmt.Errorf("Extra exceeds max length. %d > %v", len(extra), params.MaximumExtraDataSize) + } + self.worker.extra = extra + return nil } func (self *Miner) PendingState() *state.StateDB { |