core: check if sender is EOA #23303
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core: check if sender is EOA #23303
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rjl493456442
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Aug 2, 2021
karalabe
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Aug 11, 2021
| @@ -220,6 +223,11 @@ func (st *StateTransition) preCheck() error { | |||
| st.msg.From().Hex(), msgNonce, stNonce) | |||
| } | |||
| } | |||
| // Make sure the sender is an EOA | |||
| if codeHash := st.state.GetCodeHash(st.msg.From()); codeHash != emptyCodeHash && codeHash != (common.Hash{}) { | |||
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Why did you check against the zero hash? That should never happen.
|
See #23002 (comment)
|
sidhujag
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This adds a check to verify that a sender-account does not have code, which means that the codehash is either `emptyCodeHash` _OR_ not present. The latter occurs IFF the sender did not previously exist, a situation which can only occur with zero cost gasprices.
This was referenced Sep 16, 2021
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This adds a check to verify that a sender-account does not have code, which means that the codehash is either `emptyCodeHash` _OR_ not present. The latter occurs IFF the sender did not previously exist, a situation which can only occur with zero cost gasprices.
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This is a rebased version of #23002. Some commits are dropped, and I didn't want to squash-delete those until I'm sure they're not needed, hence the new PR.