Function: distributeAura(uint16 _srcChainId, address _sendFromZroPaymentAddress, byte[] _sendFromAdapterParams)

Function allows to transfer AURA tokens to another chain. Before the transfer, tokens will be minted by calling IBooster(booster).distributeL2Fees(_feeAmount). Function is available only for whitelisted distributor.

Inputs

• _srcChainId

  • Control: Full control.

  • Constraints: Should be whitelisted by owner as trusted chain.

  • Impact: ID of the recipient chain.

• _sendFromZroPaymentAddress

  • Control: Full control.

  • Constraints: No checks.

  • Impact: The address of the contract that will provide an LZ protocol fee using the LZ tokens.

Branches and code coverage (including function calls)

Intended branches

• AURA tokens were distributed properly.

  Test coverage

Negative behavior

• feeDebtOf[_srcChainId] is zero.

  Negative test

• Caller is not whitelisted distributor.

  Negative test

Function call analysis

• _distributeAura -> IBooster(booster).distributeL2Fees(_feeAmount) -> IERC20(crv).safeTransferFrom(bridgeDelegate, lockRewards, _lockIncentive)

  • External/internal? External.

  • Argument control? No.

  • Impact Distribute fees.

• _distributeAura -> IBooster(booster).distributeL2Fees(_feeAmount) -> IERC20(crv).safeTransferFrom(bridgeDelegate, stakerRewards, _stakerIncentive)

  • External/internal? External.

  • Argument control? No.

  • Impact Distribute fees.

• _distributeAura -> IBooster(booster).distributeL2Fees(_feeAmount) -> ITokenMinter(minter).mint(bridgeDelegate, eligibleForMint)

  • External/internal? External.

  • Argument control? No.

  • Impact Mint CVX to current contract.

• _lzSend -> lzEndpoint.send

  • External/internal? External.

  • Argument control? _srcChainId.

  • Impact On the side of L2Coordinator, there will be the triggered function _nonblockingLzReceive that will increase the accAuraRewards.

• IOFT(auraOFT).sendFrom

  • External/internal? External.

  • Argument control? _sendFromZroPaymentAddress and _sendFromAdapterParams.

  • Impact Transfer auraAmount of AURA tokens to the _srcChainId.