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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| package consensus | ||
|
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||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/tendermint/tendermint/libs/bytes" | ||
| "github.com/tendermint/tendermint/libs/log" | ||
| tmrand "github.com/tendermint/tendermint/libs/rand" | ||
| "github.com/tendermint/tendermint/p2p" | ||
| "github.com/tendermint/tendermint/types" | ||
| ) | ||
|
|
||
| //---------------------------------------------- | ||
| // byzantine failures | ||
|
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| // one byz val sends a precommit for a random block at each height | ||
| // Ensure a testnet makes blocks | ||
| func TestReactorInvalidPrecommit(t *testing.T) { | ||
| N := 4 | ||
| css, cleanup := randConsensusNet(N, "consensus_reactor_test", newMockTickerFunc(true), newCounter) | ||
| defer cleanup() | ||
|
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||
| for i := 0; i < 4; i++ { | ||
| ticker := NewTimeoutTicker() | ||
| ticker.SetLogger(css[i].Logger) | ||
| css[i].SetTimeoutTicker(ticker) | ||
|
|
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| } | ||
|
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| reactors, blocksSubs, eventBuses := startConsensusNet(t, css, N) | ||
|
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| // this val sends a random precommit at each height | ||
| byzValIdx := 0 | ||
| byzVal := css[byzValIdx] | ||
| byzR := reactors[byzValIdx] | ||
|
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||
| // update the doPrevote function to just send a valid precommit for a random block | ||
| // and otherwise disable the priv validator | ||
| byzVal.mtx.Lock() | ||
| pv := byzVal.privValidator | ||
| byzVal.doPrevote = func(height int64, round int) { | ||
| invalidDoPrevoteFunc(t, height, round, byzVal, byzR.Switch, pv) | ||
| } | ||
| byzVal.mtx.Unlock() | ||
| defer stopConsensusNet(log.TestingLogger(), reactors, eventBuses) | ||
|
|
||
| // wait for a bunch of blocks | ||
| // TODO: make this tighter by ensuring the halt happens by block 2 | ||
| for i := 0; i < 10; i++ { | ||
| timeoutWaitGroup(t, N, func(j int) { | ||
| <-blocksSubs[j].Out() | ||
| }, css) | ||
| } | ||
| } | ||
|
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||
| func invalidDoPrevoteFunc(t *testing.T, height int64, round int, cs *State, sw *p2p.Switch, pv types.PrivValidator) { | ||
| // routine to: | ||
| // - precommit for a random block | ||
| // - send precommit to all peers | ||
| // - disable privValidator (so we don't do normal precommits) | ||
| go func() { | ||
| cs.mtx.Lock() | ||
| cs.privValidator = pv | ||
| pubKey, err := cs.privValidator.GetPubKey() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| addr := pubKey.Address() | ||
| valIndex, _ := cs.Validators.GetByAddress(addr) | ||
|
|
||
| // precommit a random block | ||
| blockHash := bytes.HexBytes(tmrand.Bytes(32)) | ||
| precommit := &types.Vote{ | ||
| ValidatorAddress: addr, | ||
| ValidatorIndex: valIndex, | ||
| Height: cs.Height, | ||
| Round: cs.Round, | ||
| Timestamp: cs.voteTime(), | ||
| Type: types.PrecommitType, | ||
| BlockID: types.BlockID{ | ||
| Hash: blockHash, | ||
| PartsHeader: types.PartSetHeader{Total: 1, Hash: tmrand.Bytes(32)}}, | ||
| } | ||
| cs.privValidator.SignVote(cs.state.ChainID, precommit) | ||
| cs.privValidator = nil // disable priv val so we don't do normal votes | ||
| cs.mtx.Unlock() | ||
|
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||
| peers := sw.Peers().List() | ||
| for _, peer := range peers { | ||
| cs.Logger.Info("Sending bad vote", "block", blockHash, "peer", peer) | ||
| peer.Send(VoteChannel, cdc.MustMarshalBinaryBare(&VoteMessage{precommit})) | ||
| } | ||
| }() | ||
| } |
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