Add ArbFilteredTransactionsManager precompile #4174
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## master #4174 +/- ##
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- Coverage 32.69% 32.68% -0.02%
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Files 467 469 +2
Lines 56373 56512 +139
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+ Hits 18433 18472 +39
- Misses 34720 34819 +99
- Partials 3220 3221 +1 |
❌ 3 Tests Failed:
View the top 3 failed tests by shortest run time
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MishkaRogachev
requested review from
Tristan-Wilson,
diegoximenes and
tsahee
Tristan-Wilson
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Tristan-Wilson
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Looks good, just a minor comment about consistency of the interface with other precompiles.
| return filteredState.IsFiltered(txHash) | ||
| } | ||
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| func (con ArbFilteredTransactionsManager) hasAccess(c *Context) (bool, error) { |
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This signature is slightly different to ArbNativeTokenManager which has
func (con ArbNativeTokenManager) hasAccess(c ctx) bool {
manager, err := c.State.NativeTokenOwners().IsMember(c.caller)
return manager && err == nil
}
and therefore the behavior when there is an error is slightly different in this implementation in that if there is an error, then the gas is not burned out.
Unsure if this difference is intentional or not.
Tristan-Wilson
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MishkaRogachev and
Copilot and unassigned
Tristan-Wilson and
Copilot
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We should consider making |
@Tristan-Wilson, wdyt about going further: remove ArbNativeToken-style check and return an error right in CensorPrecompile, like in ArbOwner? |
| "github.com/offchainlabs/nitro/solgen/go/precompilesgen" | ||
| ) | ||
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| func TestManageTransactionCensors(t *testing.T) { |
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Can you please also test that the transactions that should be free are free? You can look at TestArbNativeTokenManager and getGasUsed inside it for inspiration.
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I don't really get how to use getGasUsed in this case, since the transaction will still cost something, only the add/delete call is free. I can suggest to use multigas like this:
tx, err = arbFilteredTxs.AddFilteredTransaction(&censorTxOpts, txHash)
require.NoError(t, err)
receipt, err := builder.L2.EnsureTxSucceeded(tx)
require.NoError(t, err)
require.Equal(t, uint64(0), receipt.MultiGasUsed.Get(multigas.ResourceKindStorageAccess))
This somehow proves that tx did not perform any storage operations like set and clear
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Could you check the censor account's balance is unchanged after adding/deleting filtered txs?
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This precompile wrapper does not make the transaction completely free, but I still believe that this test is useful because it allows to verify that the call goes through the wrapper
…ransactionsmanager-precompile
changelog/mrogachev-nit-4245.md
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| ### Added | ||
| - Add new precompile ArbFilteredTransactionsManager to manage filtered transactions | ||
| - Add transaction filterers to ArbOwner to limit access to ArbFilteredTransactionsManager | ||
| - Limit ArbOwners ability to create transaction filterers with TransactionFilteringFromTime |
precompiles/ArbOwnerPublic.go
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| // GetAllTransactionFilterers retrieves the list of transaction filterers | ||
| func (con ArbOwnerPublic) GetAllTransactionFilterers(c ctx, evm mech) ([]common.Address, error) { | ||
| return c.State.TransactionFilterers().AllMembers(65536) |
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What is this magic number? 65536?
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The same magic limiter exist in a few more places, replaced all with maxGetAllMembers
| ArbOwnerPublic.methodsByName["IsNativeTokenOwner"].arbosVersion = params.ArbosVersion_41 | ||
| ArbOwnerPublic.methodsByName["GetAllNativeTokenOwners"].arbosVersion = params.ArbosVersion_41 | ||
| ArbOwnerPublic.methodsByName["GetParentGasFloorPerToken"].arbosVersion = params.ArbosVersion_50 | ||
| ArbOwnerPublic.methodsByName["GetMaxStylusContractFragments"].arbosVersion = params.ArbosVersion_60 |
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Why does this change have anything to do with StylusContractFragments?
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The StylusContractFragments precompile interface was already merged, but nitro PR not yet
…ransactionsmanager-precompile
Fixes NIT-4152 and NIT-4253
pulls in OffchainLabs/nitro-precompile-interfaces#25
pulls in OffchainLabs/go-ethereum#604
pulls in OffchainLabs/nitro-testnode#173
Changes:
ArbFilteredTransactionsManagerto manage filtered transactionsArbFilteredTransactionsManager