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genesis: add support for arbitrary initial height (#5191)

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Adds a genesis parameter `initial_height` which specifies the initial block height, as well as ABCI `RequestInitChain.InitialHeight` to pass it to the ABCI application, and `State.InitialHeight` to keep track of the initial height throughout the code. Fixes #2543, based on [RFC-002](https://github.com/tendermint/spec/pull/119). Spec changes in https://github.com/tendermint/spec/pull/135.
This commit is contained in:
Erik Grinaker
2020-08-11 17:03:28 +00:00
committed by GitHub
parent 08ffe13295
commit cc247c091b
28 changed files with 555 additions and 317 deletions
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state/validation.go
+15 -5
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@@ -34,7 +34,11 @@ func validateBlock(evidencePool EvidencePool, stateDB dbm.DB, state State, block
block.ChainID,
)
}
if block.Height != state.LastBlockHeight+1 {
if state.LastBlockHeight == 0 && block.Height != state.InitialHeight {
return fmt.Errorf("wrong Block.Header.Height. Expected %v for initial block, got %v",
block.Height, state.InitialHeight)
}
if state.LastBlockHeight > 0 && block.Height != state.LastBlockHeight+1 {
return fmt.Errorf("wrong Block.Header.Height. Expected %v, got %v",
state.LastBlockHeight+1,
block.Height,
@@ -82,9 +86,9 @@ func validateBlock(evidencePool EvidencePool, stateDB dbm.DB, state State, block
}
// Validate block LastCommit.
if block.Height == 1 {
if block.Height == state.InitialHeight {
if len(block.LastCommit.Signatures) != 0 {
return errors.New("block at height 1 can't have LastCommit signatures")
return errors.New("initial block can't have LastCommit signatures")
}
} else {
// LastCommit.Signatures length is checked in VerifyCommit.
@@ -110,7 +114,8 @@ func validateBlock(evidencePool EvidencePool, stateDB dbm.DB, state State, block
}
// Validate block Time
if block.Height > 1 {
switch {
case block.Height > state.InitialHeight:
if !block.Time.After(state.LastBlockTime) {
return fmt.Errorf("block time %v not greater than last block time %v",
block.Time,
@@ -124,7 +129,8 @@ func validateBlock(evidencePool EvidencePool, stateDB dbm.DB, state State, block
block.Time,
)
}
} else if block.Height == 1 {
case block.Height == state.InitialHeight:
genesisTime := state.LastBlockTime
if !block.Time.Equal(genesisTime) {
return fmt.Errorf("block time %v is not equal to genesis time %v",
@@ -132,6 +138,10 @@ func validateBlock(evidencePool EvidencePool, stateDB dbm.DB, state State, block
genesisTime,
)
}
default:
return fmt.Errorf("block height %v lower than initial height %v",
block.Height, state.InitialHeight)
}
// Limit the amount of evidence