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Correct the shortcut for ommershash verification post Shanghai (#1756) 

* Correct the shortcut for ommershash verification post Shanghai

There was a faulty length check being done in the assumption that
the uncles field was already the list. However it is still the
RLP encoded data at that point, hence we check directly for the
RLP encoded value for empty list.

* Fix copy-paste error in withdrawal root verification

And print out the hashes in txs root and withdrawal root
verification
This commit is contained in:
Kim De Mey 2023-09-18 14:50:07 +02:00 committed by GitHub
parent a65b1c9062
commit 18b3ff3390
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 14 additions and 10 deletions
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24
fluffy/network/history/history_network.nim
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@ -230,7 +230,8 @@ proc validateBlockBody(
let calculatedTxsRoot = calcTxsRoot(body.transactions)
if calculatedTxsRoot != header.txRoot:
return err("Invalid transactions root")
return err("Invalid transactions root: expected " &
$header.txRoot & " - got " & $calculatedTxsRoot)
ok()
@ -239,23 +240,26 @@ proc validateBlockBody(
Result[void, string] =
## Validate the block body against the txRoot, ommersHash and withdrawalsRoot
## from the header.
# Shortcutting the ommersHash calculation as uncles needs to be empty
# TODO: This is since post-merge, however, we would need an additional object
# type for that period to do this.
if body.uncles.len > 0:
return err("Invalid ommers hash")
# Shortcut the ommersHash calculation as uncles must be an RLP encoded
# empty list
if body.uncles.asSeq() != @[byte 0xc0]:
return err("Invalid ommers hash, uncles list is not empty")
let calculatedTxsRoot = calcTxsRoot(body.transactions)
if calculatedTxsRoot != header.txRoot:
return err("Invalid transactions root")
return err("Invalid transactions root: expected " &
$header.txRoot & " - got " & $calculatedTxsRoot)
# TODO: This check is done higher up but perhaps this can become cleaner with
# some refactor.
doAssert(header.withdrawalsRoot.isSome())
let calculatedWithdrawalsRoot = calcWithdrawalsRoot(body.withdrawals)
if calculatedWithdrawalsRoot != header.txRoot:
return err("Invalid transactions root")
let
calculatedWithdrawalsRoot = calcWithdrawalsRoot(body.withdrawals)
headerWithdrawalsRoot = header.withdrawalsRoot.get()
if calculatedWithdrawalsRoot != headerWithdrawalsRoot:
return err("Invalid withdrawals root: expected " &
$headerWithdrawalsRoot & " - got " & $calculatedWithdrawalsRoot)
ok()