transactionPermissionContract takes effect before transactionPermissionContractTransition block

[ghost]

Before filing a new issue, please provide the following information.

• Parity Ethereum version: 2.0.6
• Operating system: MacOS
• Installation: docker image
• Network: local Aura PoA

Issue appeared when trying integrate a tx permission contract (https://wiki.parity.io/Permissioning.html#transaction-type) into parity chain spec file. Current chain spec file:
{ "name": "gaia", "engine": { "authorityRound": { "params": { "stepDuration": "1", "maximumUncleCountTransition": 0, "maximumUncleCount": 0, "validators": { "multi": { "0": { "safeContract": "0x0000000000000000000000000000000000000010" } } } } } }, "params": { "accountStartNonce": "0x0", "maxCodeSize": "0x60000", "maxCodeSizeTransition": "0x0", "gasLimitBoundDivisor": "0x400", "maximumExtraDataSize": "0x20", "minGasLimit": "0x1388", "networkID": "0xE0DC7", "eip140Transition": "0x0", "eip150Transition": "0x0", "eip160Transition": "0x0", "eip161abcTransition": "0x0", "eip161dTransition": "0x0", "eip211Transition": "0x0", "eip214Transition": "0x0", "eip658Transition": "0x0", "transactionPermissionContract": "0x0000000000000000000000000000000000000012", "transactionPermissionContractTransition": "0xC8" }, "genesis": { "seal": { "authorityRound": { "step": "0x00", "signature": "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000" } }, "difficulty": "0x20000", "gasLimit": "0x663BE0" }, "accounts": { "0x0000000000000000000000000000000000000001": { "balance": "1", "builtin": { "name": "ecrecover", "pricing": { "linear": { "base": 3000, "word": 0 } } } }, "0x0000000000000000000000000000000000000002": { "balance": "1", "builtin": { "name": "sha256", "pricing": { "linear": { "base": 60, "word": 12 } } } }, "0x0000000000000000000000000000000000000003": { "balance": "1", "builtin": { "name": "ripemd160", "pricing": { "linear": { "base": 600, "word": 120 } } } }, "0x0000000000000000000000000000000000000004": { "balance": "1", "builtin": { "name": "identity", "pricing": { "linear": { "base": 15, "word": 3 } } } }, "0x0000000000000000000000000000000000000005": { "builtin": { "name": "modexp", "activate_at": "0x0", "pricing": { "modexp": { "divisor": 20 } } } }, "0x0000000000000000000000000000000000000006": { "builtin": { "name": "alt_bn128_add", "activate_at": "0x0", "pricing": { "linear": { "base": 500, "word": 0 } } } }, "0x0000000000000000000000000000000000000007": { "builtin": { "name": "alt_bn128_mul", "activate_at": "0x0", "pricing": { "linear": { "base": 40000, "word": 0 } } } }, "0x0000000000000000000000000000000000000008": { "builtin": { "name": "alt_bn128_pairing", "activate_at": "0x0", "pricing": { "alt_bn128_pairing": { "base": 100000, "pair": 80000 } } } }, "0x0000000000000000000000000000000000000009": { "balance": "1", "constructor" : 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}, "0x0000000000000000000000000000000000000010": { "balance": "1", "constructor" : 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}, "0x0000000000000000000000000000000000000012": { "balance": "1", "constructor" : 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}, "0x5e9632D39ae9F0BFA4430fbe9B2Ac4994729152B": { "balance": "10000000000000000000000000000" } } }

The permission contract is deployed in genesis at address 0x0000000000000000000000000000000000000012. Transition is configured to happen at block 100.

Expected Behavior
Chain started using this chain spec should permit all transactions until block 100. At block 100, tx permission should follow permission contract rules.

Actual Behavior
All tx are pending forever start at block 0.

[jam10o-new]

pinging @andresilva ?

[jam10o-new]

@YuMingHe the contract is deployed to 0x...012, but "transactionPermissionContract": "0x6Fa2Ee3Bf3C0Db013D049E411511C61a8701E9d0" might be worth looking at?

[ghost]

my bad, that was a copy paste error when creating the issue. The problem persists.

[andresilva]

Can you confirm that your transactions are mined if you remove transactionPermissionContract settings from chain spec? Just to confirm that this is actually related to tx permissioning.

[ghost]

@andresilva Yes. You could verifying using the provided chain spec. Tx are mined if you remove transactionPermissionContract and transactionPermissionContractTransition lines.

[andresilva]

Tested with the latest beta (2.1.4) and it seems to be fixed there. I changed your chainspec to activate the transaction permission contract at block #3.

2018-11-12 23:44:00 UTC Imported #1 0xd635…1e5c (1 txs, 0.02 Mgas, 7 ms, 0.68 KiB)
2018-11-12 23:44:03 UTC Transaction mined (hash 0x7e68f13f9a2600c83b5ba2ff47c923157043e1e7149483f778df46fe1df62022)
2018-11-12 23:44:03 UTC Imported #2 0xce2a…8412 (1 txs, 0.02 Mgas, 5 ms, 0.68 KiB)
2018-11-12 23:44:06 UTC Transaction mined (hash 0x4901703296a3dfbc22bed27ef39c303546e89d380612adb673a0118a91d8c9d2)
2018-11-12 23:44:06 UTC Imported #3 0x3c9b…ac14 (1 txs, 0.02 Mgas, 5 ms, 0.68 KiB)
2018-11-12 23:44:12 UTC Error calling tx permissions contract: "please ensure the contract and method you\'re calling exist! failed to decode empty bytes. if you\'re using jsonrpc this is likely due to jsonrpc returning `0x` in case contract or method don\'t exist"
2018-11-12 23:44:12 UTC Transaction canceled (hash 0x3bfb74aa66804a40f5ef1f6c99424ab7cf9a6bb590f2beff0cd05e8e93a1d352)

[ghost]

Thanks for digging into this! Could you link the code change for the fix? Curious as to what the issue was.

[andresilva]

I think it was only implemented in 2.1 🤦‍♂️ (#9275).

[ghost]

With 2.1.4 i'm getting Consensus signer account not found for the current chain error on chain startup. I'm guessing there were breaking changes on how validator set contracts are set in chain spec?

[andresilva]

Are you sure you have keys for the engine signer you configured?

AFAIK there were no breaking changes wrt to validator set contracts. Using your chainspec here's what it shows when starting:

2018-11-13 00:26:29 UTC Initial contract validators: [0x00bd138abd70e2f00903268f3db08f2d25677c9e, 0x00aa39d30f0d20ff03a22ccfc30b7efbfca597c2, 0x002e28950558fbede1a9675cb113f0bd20912019]

So it's getting the initial validator set from the contract.

[ghost]

I am using the exact chain spec as above. Works on 2.0.6, but does not on 2.1.4. I am running the nodes via parity official docker images.

[S3bb1]

The docker file changed with 2.1. now parity runs with a other user than root. So also the keys are now in a separate location. You have to move the keys

[ghost]

@S3bb1 That resolved the docker issue. For anyone who has the same problem, the workaround is to set entrypoint: /home/parity/bin/parity and run with user: root

@andresilva Confirmed the permission contract transition issue is resolved on 2.1.4. However, were you ever able to get the actual permission contract to work? Following the interface stated in the doc (https://wiki.parity.io/Permissioning.html#transaction-type), even the simplest implementation that allows all transactions does not work for me. All tx types (basic, call, create, etc) are pending forever. Note tx works before transition block.

Here is the complete permission contract code I'm using for my test.

`contract AllowedTxType {

/// Allowed transaction types mask
uint32 constant None = 0;
uint32 constant All = 0xffffffff;
uint32 constant Basic = 0x01;
uint32 constant Call = 0x02;
uint32 constant Create = 0x04;
uint32 constant Private = 0x08;

function allowedTxType(address sender) public returns (uint32) {
    return All;
}

}
`

[ghost]

@andresilva @joshua-mir any insight on this issue?

[jam10o-new]

@YuMingHe that doesn't match the ABI 😅 allowedTxType should be allowedTxTypes

[ghost]

@joshua-mir Ahh, that resolved the issue. Thanks for the catching this!