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SlasherBase

File Type Proxy
SlasherBase.sol Abstract No

The SlasherBase is an abstract contract that provides core slashing functionality intended for AVSs to inherit. It serves as the foundation for implementing slashing mechanisms that interact with EigenLayer's AllocationManager. There are two implementations of this contract which are the VetoableSlasher and the InstantSlasher.

As of current implementation:

  • This contract provides the base functionality for slashing operators in EigenLayer based on certain conditions
  • Concrete implementations will determine when and how slashing is performed

Core Functionality

_fulfillSlashingRequest

function _fulfillSlashingRequest(
    uint256 _requestId,
    IAllocationManager.SlashingParams memory _params
) 
    internal 
    virtual

Internal function that executes a slashing request by calling the AllocationManager.slashOperator method. The implementations of this contract will call this internal method.

Effects:

  • Calls the allocation manager to slash the specified operator
  • Emits an OperatorSlashed event with details about the slashing action

Requirements:

  • The allocation manager must be properly set up
  • The slashing parameters must be valid

_checkSlasher

function _checkSlasher(
    address account
) 
    internal 
    view 
    virtual

Internal function that verifies if an account is the authorized slasher.

Effects:

  • Reverts with an OnlySlasher error if the provided account is not the authorized slasher

Requirements:

  • The account must match the stored slasher address

Modifiers

onlySlasher

modifier onlySlasher()

Ensures that only the authorized slasher can call certain functions. This will commonly be set as the address of the AVS ServiceManager which would expose a permissioned or permissionless external function to call the slashing contract. Keeping the contracts decoupled allows for easier upgrade paths.

Effects:

  • Calls _checkSlasher to verify that the caller is the authorized slasher
  • Allows the function execution to proceed if the check passes