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Authorization Management of Parameters

Different kinds of admin role control parameters such as smart contract upgrades, fee structures, and governance mechanisms, influencing the decentralized finance ecosystem's overall governance and operational aspects.
Access Control List Manager is the main registry of system roles and permissions.
ACLManager allows a Role Admin to manage roles. Role Admin is itself a role that is managed by the DEFAULT_ADMIN_ROLE.
DEFAULT_ADMIN_ROLE is held by the ACLAdmin, which is initialised in PoolAddressesProvider.
PoolAddressesProvider, is owned by HopeLend Governance.
​

Roles

Below we outline the powers/responsibilities of the roles and the specific methods that are only accessible to the holders of these roles.
Role
Responsibilities / Powers
Methods Accessible
FLASH_BORROWER
Flash loan premium is waived for the holders of this role.
⛔️ Does not include flashLoanSimple
flashLoan
ASSET_LISTING_ADMIN
Can update
  • asset oracle sources
  • fallback oracle
  • add new assets to the HopeLend market
  • setAssetSources
  • setFallbackOracle
  • initReserves
RISK_ADMIN
Can update
  • grace period of Oracle Sentinels
  • reserve params
  • unbacked mint cap
  • liquidation protocol fee
  • existing eMode categories and creating new ones. (not category 0)
  • add/remove asset in silo mode
  • setGracePeriod
  • setReserveBorrowing
  • configureReserveAsCollateral
  • setReserveStableRateBorrowing
  • setReserveFreeze
  • setBorrowableInIsolation
  • setReserveFactor
  • setDebtCeiling
  • setBorrowCap
  • setSupplyCap
  • setLiquidationProtocolFee
  • setEModeCategory
  • setAssetEModeCategory
  • setUnbackedMintCap
  • setReserveInterestRateStrategyAddress
  • setSiloedBorrowing
ACL_ADMIN
Manage the role admins in the ACLManager
  • setRoleAdmin
  • addPoolAdmin
  • removePoolAdmin
  • addEmergencyAdmin
  • removeEmergencyAdmin
  • addRiskAdmin
  • removeRiskAdmin
  • addFlashBorrower
  • removeFlashBorrower
  • addAssetListingAdmin
  • removeAssetListingAdmin
EMERGENCY_ADMIN
Can pause/unpause the pool or individual reserve
  • setPoolPause
POOL_ADMIN
Can
  • update token implementations
  • drop reserves
  • pause/unpause reserves
  • activate/deactivate reserves
  • update premiums
  • do all the things available to RISK_ADMIN & ASSET_LISTING_ADMIN
  • all methods available to RISK_ADMIN
  • all methods available to ASSET_LISTING_ADMIN
  • dropReserve
  • updateAToken
  • updateStableDebtToken
  • updateVariableDebtToken
  • setReserveActive
  • updateBridgeProtocolFee
  • updateFlashloanPremiumTotal
  • updateFlashloanPremiumToProtocol
​
​
​

View Methods

isPoolAdmin

function isPoolAdmin(address admin)
Returns true if the address has POOL_ADMIN role.

isEmergencyAdmin

function isEmergencyAdmin(address admin)
Returns true if the address has EMERGENCY_ADMIN role.

isRiskAdmin

function isRiskAdmin(address admin)
Returns true if the address has RISK_ADMIN role.

isFlashBorrower

function isFlashBorrower(address borrower)
Returns true if the address has a FLASH_BORROWER role.

isAssetListingAdmin

function isAssetListingAdmin(address admin)
Returns true if the address has ASSET_LISTING_ADMIN role.

Write Methods

setRoleAdmin

setRoleAdmin(bytes32 role, bytes32 adminRole)
Setup admin to manage Roles.
This method can only be called by address with DEFAULT_ADMIN_ROLE.
Call Params
Name
Type
Description
role
bytes32
keccak256 hash of one of the following:
  • POOL_ADMIN
  • EMERGENCY_ADMIN
  • RISK_ADMIN
  • FLASH_BORROWER
  • BRIDGE
  • ASSET_LISTING_ADMIN
adminRole
bytes32
adminRole responsible for role. 0x00 is reserved for DEFAULT_ADMIN_ROLE

addPoolAdmin

addPoolAdmin(address admin)
Add address to the list of members in POOL_ADMIN role. Holders of this role can update token implementations, drop, (un)pause and (de)activate reserves, update premiums and do everything the ASSET_LISTING_ADMIN and RISK_ADMIN can do.
Can be called only by Role Admin, specified by HopeLend Governance, responsible for managing POOL_ADMIN role.
​
Call Params
Name
Type
Description
admin
address
address which will be granted POOL_ADMIN role.

removePoolAdmin

removePoolAdmin(address admin)
Remove given address from the list of members in POOL_ADMIN role.
Can be called only by Role Admin, specified by HopeLend Governance, responsible for managing POOL_ADMIN role.
Call Params
Name
Type
Description
admin
address
address for which POOL_ADMIN role permissions must be revoked.

addEmergencyAdmin

addEmergencyAdmin(address admin)
Add address to the list of members in EMERGENCY_ADMIN role. Holders of this role can pause and unpause the pool or an individual reserve.
Can be called only by Role Admin, specified by HopeLend Governance, responsible for managingEMERGENCY_ADMIN role.
Call Params
Name
Type
Description
admin
address
address which will be grantedEMERGENCY_ADMINrole.

removeEmergencyAdmin

function removeEmergencyAdmin(address admin)
Remove given address from the list of members in EMERGENCY_ADMIN role.
Can be called only by Role Admin, specified by HopeLend Governance, responsible for managing EMERGENCY_ADMIN role.
Call Params
Name
Type
Description
admin
address
address for which EMERGENCY_ADMIN role permissions must be revoked.

addRiskAdmin

function addRiskAdmin(address admin)
Add address to the list of members in RISK_ADMIN role. Holders of this role can update the grace period of Oracle Sentinels, reserve params, unbacked mint cap, liquidation fee and eMode categories.
Call Params
Name
Type
Description
admin
address
address which will be granted RISK_ADMIN role.

removeRiskAdmin

Remove given address from the list of members in RISK_ADMIN role.
Call Params
Name
Type
Description
admin
address
address for which RISK_ADMIN role permissions must be revoked.

addFlashBorrower

function addFlashBorrower(address borrower)
Add address to the list of members in FLASH_BORROWER role. Holders of this role do not pay premium for flash loan (Does not apply to flashLonaSimple.

removeFlashBorrower

function removeFlashBorrower(address borrower)
Remove given address from the list of members in FLASH_BORROWER role.
Call Params
Name
Type
Description
admin
address
address for which FLASH_BORROWER role permissions must be revoked.

addAssetListingAdmin

function addAssetListingAdmin(address admin)
Add address to the list of member in ASSET_LISTING_ADMIN role. Holder of this role can update oracles & add new asset to the HopeLend market.
Call Params
Name
Type
Description
admin
address
address which will be granted ASSET_LISTING_ADMIN role.

removeAssetListingAdmin

function removeAssetListingAdmin(address admin)
Remove address from the list of members in ASSET_LISTING_ADMIN role.
Call Params
Name
Type
Description
admin
address
address for which ASSET_LISTING_ADMIN role permissions must be revoked.
​
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