LosslessControllerV2
This contract is the gateway contract that connects LERC20 token contracts with all the lossless hack mitigation system.
Contract can be found here:
pauseAdminadminrecoveryAdminguardiantokenProtections
This address has the access to pause and unpause controller contract.
This address has access to configure lossless protocol. Can be changed by
recoveryAdmin.This is a super admin's address. This wallet is able to change the regular admin and pause admin. This address is the most powerful admin in the whole lossless protocol and we are using a secure and time tested multi-sig (Gnosis Safe) for it. This variable can be changed using
transferRecoveryAdminOwnership function.The address of the guardian smart contract. Guardian contract has access to control protection strategies on controller contract.
This mapping saves info about every address that is protected. It has a flag that shows if the address is protected or not and also has strategy address so that if the address is protected the controller knows which of the protections strategies should be applied.
AdminChanged(address indexed previousAdmin, address indexed newAdmin)RecoveryAdminChanged(address indexed previousAdmin, address indexed newAdmin)PauseAdminChanged(address indexed previousAdmin, address indexed newAdmin)GuardianSet(address indexed oldGuardian, address indexed newGuardian)ProtectedAddressSet(address indexed token, address indexed protectedAddress, address indexed strategy)RemovedProtectedAddress(address indexed token, address indexed protectedAddress)
onlyLosslessRecoveryAdminonlyLosslessAdminonlyPauseAdminonlyGuardian
Checks if msg.sender is
recoveryAdmin.Checks if
msg.sender is admin.Checks if
msg.sender is pauseAdmin.Checks if
msg.sender is guardian smart contract.getVersionisAddressProtectedgetProtectedAddressStrategypauseunpausesetAdminsetRecoveryAdminsetPauseAdminsetGuardiansetProtectedAddressremoveProtectedAddressbeforeTransferbeforeTransferFrombeforeApprovebeforeIncreaseAllowancebeforeDecreaseAllowanceafterApproveafterTransferafterTransferFromafterIncreaseAllowanceafterDecreaseAllowance
function getVersion() external pure returns (uint256)
Returns current version of the controller.
function isAddressProtected(address token, address protectedAddress) external view returns (bool)
Returns either true or false depending if the address has any protections set up on it.
Parameters:
function getProtectedAddressStrategy(address token, address protectedAddress) external view returns (address)
Returns address of the strategy that the protected address is using. If address is not protected returns zero address.
Parameters:
Name | Type | Description |
|---|---|---|
token | address | Token for which the protection is set. |
protectedAddress | address | Address to check the protection strategy for. |
function pause() external onlyPauseAdmin
Sets the pause flag to true which in turn pauses some of the contracts functionality. Can be called only by the
pauseAdmin.function unpause() external onlyPauseAdmin
Sets the pause flag to false which in turn unpauses some of the contracts functionality. Can be called only by the
pauseAdmin.function setAdmin(address newAdmin) external onlyLosslessRecoveryAdmin
Sets
admin address. Can be called only by recoveryAdmin.Parameters:
Name | Type | Description |
|---|---|---|
newAdmin | address | New admin address. |
function setRecoveryAdmin(address newRecoveryAdmin) external onlyLosslessRecoveryAdmin
Sets
recoveryAdmin address. Can be called only by recoveryAdmin.Parameters:
Name | Type | Description |
|---|---|---|
newRecoveryAdmin | address | New recovery admin address. |
function setPauseAdmin(address newPauseAdmin) external onlyLosslessRecoveryAdmin
Sets
pauseAdmin address. Can be called only by recoveryAdmin.Parameters:
Name | Type | Description |
|---|---|---|
newPauseAdmin | address | New pause admin address. |
function setGuardian(address newGuardian) external onlyLosslessAdmin whenNotPaused
Sets
guardian contract's address. Can be called only by admin when contract is not paused.Parameters:
Name | Type | Description |
|---|---|---|
newGuardian | address | New guardian contract's address. |
function setProtectedAddress(address token, address protectedAddresss, ProtectionStrategy strategy) external onlyGuardian whenNotPaused
Sets token scoped protection on an address. Can be called only by the
guardian when contract is not paused.Parameters:
Name | Type | Description |
|---|---|---|
token | address | Token for which the protection rules should be applied. |
protectedAddress | address | Address to protect. |
strategy | ProtectionStrategy | Strategy address that should be used when protecting the address. |
function removeProtectedAddress(address token, address protectedAddresss) external onlyGuardian whenNotPaused
Removes token scoped protection. Can be called only by
guardian contract when contract is not paused.Parameters:
Name | Type | Description |
|---|---|---|
token | address | Token for which the protection rules should be removed. |
protectedAddress | address | Address to remove the protection from. |
function beforeTransfer(address sender, address recipient, uint256 amount) external
Hook function that is called before every LERC20 token
transfer function. Also does a call to protection strategy in case sender's address is protected.Parameters:
Name | Type | Description |
|---|---|---|
sender | address | Sender's address. |
recipient | address | Recipient's address. |
amount | uint256 | Amount of tokens being transferred. |
function beforeTransferFrom(address msgSender, address sender, address recipient, uint256 amount) external
Hook function that is called before every LERC20 token
transferFrom function. Also does a call to protection strategy in case sender's address is protected.Parameters:
Name | Type | Description |
|---|---|---|
msgSender | address | Address that triggered transfer from sender's address. |
sender | address | Sender's address. |
recipient | address | Recipient's address. |
amount | uint256 | Amount of tokens being transferred. |
function beforeApprove(address sender, address spender, uint256 amount) external
Hook function that is called before every LERC20 token
approve function. Does not implement any logic yet. Parameters:
Name | Type | Description |
|---|---|---|
sender | address | Sender's address. |
recipient | address | Recipient's address. |
amount | uint256 | Amount of tokens being approved. |
function beforeIncreaseAllowance(address msgSender, address spender, uint256 addedValue) external
Hook function that is called before every LERC20 token
increaseAllowance function. Does not implement any logic yet. Parameters:
Name | Type | Description |
|---|---|---|
msgSender | address | Address that triggered increaseAllowance function from spender's address. |
spender | address | Spender's address. |
addedValue | uint256 | How many tokens to add to the already approved amount. |
function beforeDecreaseAllowance(address msgSender, address spender, uint256 subtractedValue) external
Hook function that is called before every LERC20 token
decreaseAllowance function. Does not implement any logic yet.Parameters:
Name | Type | Description |
|---|---|---|
msgSender | address | Address that triggered decreaseAllowance function from spender's address. |
spender | address | Spender's address. |
subtractValue | uint256 | How many tokens to subtract from the already approved amount. |
afterApproveafterTransferafterTransferFromafterIncreaseAllowanceafterDecreaseAllowance
These functions are deprecated and do not contain any logic. These functions are kept in the controller because tokens that use older version of LERC20 do calls to these functions. They must be kept on the controller in order not to brick those tokens.
Last modified 1yr ago