Address Contract Partially Verified
Address
0x5d556e21d306CB33809d98ae4eb898Ed41A59a6E
Balance
0 ETH
Nonce
1
Code Size
24518 bytes
Creator
0x0f5661B5...Ce41 at tx 0x87c5d625...500124
Indexed Transactions
0
Contract Bytecode
24518 bytes
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Verified Source Code Partial Match
Compiler: v0.8.12+commit.f00d7308
EVM: london
Optimization: Yes (50 runs)
RegistryCoordinator.sol 6345 lines
// SPDX-License-Identifier: BUSL-1.1
pragma solidity =0.8.12;
/**
* @title Interface for the `PauserRegistry` contract.
* @author Layr Labs, Inc.
* @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
*/
interface IPauserRegistry {
event PauserStatusChanged(address pauser, bool canPause);
event UnpauserChanged(address previousUnpauser, address newUnpauser);
/// @notice Mapping of addresses to whether they hold the pauser role.
function isPauser(address pauser) external view returns (bool);
/// @notice Unique address that holds the unpauser role. Capable of changing *both* the pauser and unpauser addresses.
function unpauser() external view returns (address);
}
/**
* @title The interface for common signature utilities.
* @author Layr Labs, Inc.
* @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
*/
interface ISignatureUtils {
// @notice Struct that bundles together a signature and an expiration time for the signature. Used primarily for stack management.
struct SignatureWithExpiry {
// the signature itself, formatted as a single bytes object
bytes signature;
// the expiration timestamp (UTC) of the signature
uint256 expiry;
}
// @notice Struct that bundles together a signature, a salt for uniqueness, and an expiration time for the signature. Used primarily for stack management.
struct SignatureWithSaltAndExpiry {
// the signature itself, formatted as a single bytes object
bytes signature;
// the salt used to generate the signature
bytes32 salt;
// the expiration timestamp (UTC) of the signature
uint256 expiry;
}
}
/**
* @title Interface for an `ISocketUpdater` where operators can update their sockets.
* @author Layr Labs, Inc.
*/
interface ISocketUpdater {
// EVENTS
event OperatorSocketUpdate(bytes32 indexed operatorId, string socket);
// FUNCTIONS
/**
* @notice Updates the socket of the msg.sender given they are a registered operator
* @param socket is the new socket of the operator
*/
function updateSocket(string memory socket) external;
}
/**
* @title Minimal interface for a `Registry`-type contract.
* @author Layr Labs, Inc.
* @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
* @notice Functions related to the registration process itself have been intentionally excluded
* because their function signatures may vary significantly.
*/
interface IRegistry {
function registryCoordinator() external view returns (address);
}
// several functions are taken or adapted from https://github.com/HarryR/solcrypto/blob/master/contracts/altbn128.sol (MIT license):
// Copyright 2017 Christian Reitwiessner
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
// The remainder of the code in this library is written by LayrLabs Inc. and is also under an MIT license
/**
* @title Library for operations on the BN254 elliptic curve.
* @author Layr Labs, Inc.
* @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
* @notice Contains BN254 parameters, common operations (addition, scalar mul, pairing), and BLS signature functionality.
*/
library BN254 {
// modulus for the underlying field F_p of the elliptic curve
uint256 internal constant FP_MODULUS =
21888242871839275222246405745257275088696311157297823662689037894645226208583;
// modulus for the underlying field F_r of the elliptic curve
uint256 internal constant FR_MODULUS =
21888242871839275222246405745257275088548364400416034343698204186575808495617;
struct G1Point {
uint256 X;
uint256 Y;
}
// Encoding of field elements is: X[1] * i + X[0]
struct G2Point {
uint256[2] X;
uint256[2] Y;
}
function generatorG1() internal pure returns (G1Point memory) {
return G1Point(1, 2);
}
// generator of group G2
/// @dev Generator point in F_q2 is of the form: (x0 + ix1, y0 + iy1).
uint256 internal constant G2x1 = 11559732032986387107991004021392285783925812861821192530917403151452391805634;
uint256 internal constant G2x0 = 10857046999023057135944570762232829481370756359578518086990519993285655852781;
uint256 internal constant G2y1 = 4082367875863433681332203403145435568316851327593401208105741076214120093531;
uint256 internal constant G2y0 = 8495653923123431417604973247489272438418190587263600148770280649306958101930;
/// @notice returns the G2 generator
/// @dev mind the ordering of the 1s and 0s!
/// this is because of the (unknown to us) convention used in the bn254 pairing precompile contract
/// "Elements a * i + b of F_p^2 are encoded as two elements of F_p, (a, b)."
/// https://github.com/ethereum/EIPs/blob/master/EIPS/eip-197.md#encoding
function generatorG2() internal pure returns (G2Point memory) {
return G2Point([G2x1, G2x0], [G2y1, G2y0]);
}
// negation of the generator of group G2
/// @dev Generator point in F_q2 is of the form: (x0 + ix1, y0 + iy1).
uint256 internal constant nG2x1 = 11559732032986387107991004021392285783925812861821192530917403151452391805634;
uint256 internal constant nG2x0 = 10857046999023057135944570762232829481370756359578518086990519993285655852781;
uint256 internal constant nG2y1 = 17805874995975841540914202342111839520379459829704422454583296818431106115052;
uint256 internal constant nG2y0 = 13392588948715843804641432497768002650278120570034223513918757245338268106653;
function negGeneratorG2() internal pure returns (G2Point memory) {
return G2Point([nG2x1, nG2x0], [nG2y1, nG2y0]);
}
bytes32 internal constant powersOfTauMerkleRoot =
0x22c998e49752bbb1918ba87d6d59dd0e83620a311ba91dd4b2cc84990b31b56f;
/**
* @param p Some point in G1.
* @return The negation of `p`, i.e. p.plus(p.negate()) should be zero.
*/
function negate(G1Point memory p) internal pure returns (G1Point memory) {
// The prime q in the base field F_q for G1
if (p.X == 0 && p.Y == 0) {
return G1Point(0, 0);
} else {
return G1Point(p.X, FP_MODULUS - (p.Y % FP_MODULUS));
}
}
/**
* @return r the sum of two points of G1
*/
function plus(G1Point memory p1, G1Point memory p2) internal view returns (G1Point memory r) {
uint256[4] memory input;
input[0] = p1.X;
input[1] = p1.Y;
input[2] = p2.X;
input[3] = p2.Y;
bool success;
// solium-disable-next-line security/no-inline-assembly
assembly {
success := staticcall(sub(gas(), 2000), 6, input, 0x80, r, 0x40)
// Use "invalid" to make gas estimation work
switch success
case 0 {
invalid()
}
}
require(success, "ec-add-failed");
}
/**
* @notice an optimized ecMul implementation that takes O(log_2(s)) ecAdds
* @param p the point to multiply
* @param s the scalar to multiply by
* @dev this function is only safe to use if the scalar is 9 bits or less
*/
function scalar_mul_tiny(BN254.G1Point memory p, uint16 s) internal view returns (BN254.G1Point memory) {
require(s < 2**9, "scalar-too-large");
// if s is 1 return p
if(s == 1) {
return p;
}
// the accumulated product to return
BN254.G1Point memory acc = BN254.G1Point(0, 0);
// the 2^n*p to add to the accumulated product in each iteration
BN254.G1Point memory p2n = p;
// value of most significant bit
uint16 m = 1;
// index of most significant bit
uint8 i = 0;
//loop until we reach the most significant bit
while(s >= m){
unchecked {
// if the current bit is 1, add the 2^n*p to the accumulated product
if ((s >> i) & 1 == 1) {
acc = plus(acc, p2n);
}
// double the 2^n*p for the next iteration
p2n = plus(p2n, p2n);
// increment the index and double the value of the most significant bit
m <<= 1;
++i;
}
}
// return the accumulated product
return acc;
}
/**
* @return r the product of a point on G1 and a scalar, i.e.
* p == p.scalar_mul(1) and p.plus(p) == p.scalar_mul(2) for all
* points p.
*/
function scalar_mul(G1Point memory p, uint256 s) internal view returns (G1Point memory r) {
uint256[3] memory input;
input[0] = p.X;
input[1] = p.Y;
input[2] = s;
bool success;
// solium-disable-next-line security/no-inline-assembly
assembly {
success := staticcall(sub(gas(), 2000), 7, input, 0x60, r, 0x40)
// Use "invalid" to make gas estimation work
switch success
case 0 {
invalid()
}
}
require(success, "ec-mul-failed");
}
/**
* @return The result of computing the pairing check
* e(p1[0], p2[0]) * .... * e(p1[n], p2[n]) == 1
* For example,
* pairing([P1(), P1().negate()], [P2(), P2()]) should return true.
*/
function pairing(
G1Point memory a1,
G2Point memory a2,
G1Point memory b1,
G2Point memory b2
) internal view returns (bool) {
G1Point[2] memory p1 = [a1, b1];
G2Point[2] memory p2 = [a2, b2];
uint256[12] memory input;
for (uint256 i = 0; i < 2; i++) {
uint256 j = i * 6;
input[j + 0] = p1[i].X;
input[j + 1] = p1[i].Y;
input[j + 2] = p2[i].X[0];
input[j + 3] = p2[i].X[1];
input[j + 4] = p2[i].Y[0];
input[j + 5] = p2[i].Y[1];
}
uint256[1] memory out;
bool success;
// solium-disable-next-line security/no-inline-assembly
assembly {
success := staticcall(sub(gas(), 2000), 8, input, mul(12, 0x20), out, 0x20)
// Use "invalid" to make gas estimation work
switch success
case 0 {
invalid()
}
}
require(success, "pairing-opcode-failed");
return out[0] != 0;
}
/**
* @notice This function is functionally the same as pairing(), however it specifies a gas limit
* the user can set, as a precompile may use the entire gas budget if it reverts.
*/
function safePairing(
G1Point memory a1,
G2Point memory a2,
G1Point memory b1,
G2Point memory b2,
uint256 pairingGas
) internal view returns (bool, bool) {
G1Point[2] memory p1 = [a1, b1];
G2Point[2] memory p2 = [a2, b2];
uint256[12] memory input;
for (uint256 i = 0; i < 2; i++) {
uint256 j = i * 6;
input[j + 0] = p1[i].X;
input[j + 1] = p1[i].Y;
input[j + 2] = p2[i].X[0];
input[j + 3] = p2[i].X[1];
input[j + 4] = p2[i].Y[0];
input[j + 5] = p2[i].Y[1];
}
uint256[1] memory out;
bool success;
// solium-disable-next-line security/no-inline-assembly
assembly {
success := staticcall(pairingGas, 8, input, mul(12, 0x20), out, 0x20)
}
//Out is the output of the pairing precompile, either 0 or 1 based on whether the two pairings are equal.
//Success is true if the precompile actually goes through (aka all inputs are valid)
return (success, out[0] != 0);
}
/// @return hashedG1 the keccak256 hash of the G1 Point
/// @dev used for BLS signatures
function hashG1Point(BN254.G1Point memory pk) internal pure returns (bytes32 hashedG1) {
assembly {
mstore(0, mload(pk))
mstore(0x20, mload(add(0x20, pk)))
hashedG1 := keccak256(0, 0x40)
}
}
/// @return the keccak256 hash of the G2 Point
/// @dev used for BLS signatures
function hashG2Point(
BN254.G2Point memory pk
) internal pure returns (bytes32) {
return keccak256(abi.encodePacked(pk.X[0], pk.X[1], pk.Y[0], pk.Y[1]));
}
/**
* @notice adapted from https://github.com/HarryR/solcrypto/blob/master/contracts/altbn128.sol
*/
function hashToG1(bytes32 _x) internal view returns (G1Point memory) {
uint256 beta = 0;
uint256 y = 0;
uint256 x = uint256(_x) % FP_MODULUS;
while (true) {
(beta, y) = findYFromX(x);
// y^2 == beta
if( beta == mulmod(y, y, FP_MODULUS) ) {
return G1Point(x, y);
}
x = addmod(x, 1, FP_MODULUS);
}
return G1Point(0, 0);
}
/**
* Given X, find Y
*
* where y = sqrt(x^3 + b)
*
* Returns: (x^3 + b), y
*/
function findYFromX(uint256 x) internal view returns (uint256, uint256) {
// beta = (x^3 + b) % p
uint256 beta = addmod(mulmod(mulmod(x, x, FP_MODULUS), x, FP_MODULUS), 3, FP_MODULUS);
// y^2 = x^3 + b
// this acts like: y = sqrt(beta) = beta^((p+1) / 4)
uint256 y = expMod(beta, 0xc19139cb84c680a6e14116da060561765e05aa45a1c72a34f082305b61f3f52, FP_MODULUS);
return (beta, y);
}
function expMod(uint256 _base, uint256 _exponent, uint256 _modulus) internal view returns (uint256 retval) {
bool success;
uint256[1] memory output;
uint[6] memory input;
input[0] = 0x20; // baseLen = new(big.Int).SetBytes(getData(input, 0, 32))
input[1] = 0x20; // expLen = new(big.Int).SetBytes(getData(input, 32, 32))
input[2] = 0x20; // modLen = new(big.Int).SetBytes(getData(input, 64, 32))
input[3] = _base;
input[4] = _exponent;
input[5] = _modulus;
assembly {
success := staticcall(sub(gas(), 2000), 5, input, 0xc0, output, 0x20)
// Use "invalid" to make gas estimation work
switch success
case 0 {
invalid()
}
}
require(success, "BN254.expMod: call failure");
return output[0];
}
}
/**
* @title Minimal interface for a registry that keeps track of aggregate operator public keys across many quorums.
* @author Layr Labs, Inc.
*/
interface IBLSApkRegistry is IRegistry {
// STRUCTS
/// @notice Data structure used to track the history of the Aggregate Public Key of all operators
struct ApkUpdate {
// first 24 bytes of keccak256(apk_x0, apk_x1, apk_y0, apk_y1)
bytes24 apkHash;
// block number at which the update occurred
uint32 updateBlockNumber;
// block number at which the next update occurred
uint32 nextUpdateBlockNumber;
}
/**
* @notice Struct used when registering a new public key
* @param pubkeyRegistrationSignature is the registration message signed by the private key of the operator
* @param pubkeyG1 is the corresponding G1 public key of the operator
* @param pubkeyG2 is the corresponding G2 public key of the operator
*/
struct PubkeyRegistrationParams {
BN254.G1Point pubkeyRegistrationSignature;
BN254.G1Point pubkeyG1;
BN254.G2Point pubkeyG2;
}
// EVENTS
/// @notice Emitted when `operator` registers with the public keys `pubkeyG1` and `pubkeyG2`.
event NewPubkeyRegistration(address indexed operator, BN254.G1Point pubkeyG1, BN254.G2Point pubkeyG2);
// @notice Emitted when a new operator pubkey is registered for a set of quorums
event OperatorAddedToQuorums(
address operator,
bytes32 operatorId,
bytes quorumNumbers
);
// @notice Emitted when an operator pubkey is removed from a set of quorums
event OperatorRemovedFromQuorums(
address operator,
bytes32 operatorId,
bytes quorumNumbers
);
/**
* @notice Registers the `operator`'s pubkey for the specified `quorumNumbers`.
* @param operator The address of the operator to register.
* @param quorumNumbers The quorum numbers the operator is registering for, where each byte is an 8 bit integer quorumNumber.
* @dev access restricted to the RegistryCoordinator
* @dev Preconditions (these are assumed, not validated in this contract):
* 1) `quorumNumbers` has no duplicates
* 2) `quorumNumbers.length` != 0
* 3) `quorumNumbers` is ordered in ascending order
* 4) the operator is not already registered
*/
function registerOperator(address operator, bytes calldata quorumNumbers) external;
/**
* @notice Deregisters the `operator`'s pubkey for the specified `quorumNumbers`.
* @param operator The address of the operator to deregister.
* @param quorumNumbers The quorum numbers the operator is deregistering from, where each byte is an 8 bit integer quorumNumber.
* @dev access restricted to the RegistryCoordinator
* @dev Preconditions (these are assumed, not validated in this contract):
* 1) `quorumNumbers` has no duplicates
* 2) `quorumNumbers.length` != 0
* 3) `quorumNumbers` is ordered in ascending order
* 4) the operator is not already deregistered
* 5) `quorumNumbers` is a subset of the quorumNumbers that the operator is registered for
*/
function deregisterOperator(address operator, bytes calldata quorumNumbers) external;
/**
* @notice Initializes a new quorum by pushing its first apk update
* @param quorumNumber The number of the new quorum
*/
function initializeQuorum(uint8 quorumNumber) external;
/**
* @notice mapping from operator address to pubkey hash.
* Returns *zero* if the `operator` has never registered, and otherwise returns the hash of the public key of the operator.
*/
function operatorToPubkeyHash(address operator) external view returns (bytes32);
/**
* @notice mapping from pubkey hash to operator address.
* Returns *zero* if no operator has ever registered the public key corresponding to `pubkeyHash`,
* and otherwise returns the (unique) registered operator who owns the BLS public key that is the preimage of `pubkeyHash`.
*/
function pubkeyHashToOperator(bytes32 pubkeyHash) external view returns (address);
/**
* @notice Called by the RegistryCoordinator register an operator as the owner of a BLS public key.
* @param operator is the operator for whom the key is being registered
* @param params contains the G1 & G2 public keys of the operator, and a signature proving their ownership
* @param pubkeyRegistrationMessageHash is a hash that the operator must sign to prove key ownership
*/
function registerBLSPublicKey(
address operator,
PubkeyRegistrationParams calldata params,
BN254.G1Point calldata pubkeyRegistrationMessageHash
) external returns (bytes32 operatorId);
/**
* @notice Returns the pubkey and pubkey hash of an operator
* @dev Reverts if the operator has not registered a valid pubkey
*/
function getRegisteredPubkey(address operator) external view returns (BN254.G1Point memory, bytes32);
/// @notice Returns the current APK for the provided `quorumNumber `
function getApk(uint8 quorumNumber) external view returns (BN254.G1Point memory);
/// @notice Returns the index of the quorumApk index at `blockNumber` for the provided `quorumNumber`
function getApkIndicesAtBlockNumber(bytes calldata quorumNumbers, uint256 blockNumber) external view returns(uint32[] memory);
/// @notice Returns the `ApkUpdate` struct at `index` in the list of APK updates for the `quorumNumber`
function getApkUpdateAtIndex(uint8 quorumNumber, uint256 index) external view returns (ApkUpdate memory);
/// @notice Returns the operator address for the given `pubkeyHash`
function getOperatorFromPubkeyHash(bytes32 pubkeyHash) external view returns (address);
/**
* @notice get 24 byte hash of the apk of `quorumNumber` at `blockNumber` using the provided `index`;
* called by checkSignatures in BLSSignatureChecker.sol.
* @param quorumNumber is the quorum whose ApkHash is being retrieved
* @param blockNumber is the number of the block for which the latest ApkHash will be retrieved
* @param index is the index of the apkUpdate being retrieved from the list of quorum apkUpdates in storage
*/
function getApkHashAtBlockNumberAndIndex(uint8 quorumNumber, uint32 blockNumber, uint256 index) external view returns (bytes24);
/// @notice returns the ID used to identify the `operator` within this AVS.
/// @dev Returns zero in the event that the `operator` has never registered for the AVS
function getOperatorId(address operator) external view returns (bytes32);
}
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);
/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` tokens from the caller's account to `to`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address to, uint256 amount) external returns (bool);
/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);
/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 amount) external returns (bool);
}
/**
* @title Minimal interface for an `Strategy` contract.
* @author Layr Labs, Inc.
* @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
* @notice Custom `Strategy` implementations may expand extensively on this interface.
*/
interface IStrategy {
/**
* @notice Used to deposit tokens into this Strategy
* @param token is the ERC20 token being deposited
* @param amount is the amount of token being deposited
* @dev This function is only callable by the strategyManager contract. It is invoked inside of the strategyManager's
* `depositIntoStrategy` function, and individual share balances are recorded in the strategyManager as well.
* @return newShares is the number of new shares issued at the current exchange ratio.
*/
function deposit(IERC20 token, uint256 amount) external returns (uint256);
/**
* @notice Used to withdraw tokens from this Strategy, to the `recipient`'s address
* @param recipient is the address to receive the withdrawn funds
* @param token is the ERC20 token being transferred out
* @param amountShares is the amount of shares being withdrawn
* @dev This function is only callable by the strategyManager contract. It is invoked inside of the strategyManager's
* other functions, and individual share balances are recorded in the strategyManager as well.
*/
function withdraw(address recipient, IERC20 token, uint256 amountShares) external;
/**
* @notice Used to convert a number of shares to the equivalent amount of underlying tokens for this strategy.
* @notice In contrast to `sharesToUnderlyingView`, this function **may** make state modifications
* @param amountShares is the amount of shares to calculate its conversion into the underlying token
* @return The amount of underlying tokens corresponding to the input `amountShares`
* @dev Implementation for these functions in particular may vary significantly for different strategies
*/
function sharesToUnderlying(uint256 amountShares) external returns (uint256);
/**
* @notice Used to convert an amount of underlying tokens to the equivalent amount of shares in this strategy.
* @notice In contrast to `underlyingToSharesView`, this function **may** make state modifications
* @param amountUnderlying is the amount of `underlyingToken` to calculate its conversion into strategy shares
* @return The amount of underlying tokens corresponding to the input `amountShares`
* @dev Implementation for these functions in particular may vary significantly for different strategies
*/
function underlyingToShares(uint256 amountUnderlying) external returns (uint256);
/**
* @notice convenience function for fetching the current underlying value of all of the `user`'s shares in
* this strategy. In contrast to `userUnderlyingView`, this function **may** make state modifications
*/
function userUnderlying(address user) external returns (uint256);
/**
* @notice convenience function for fetching the current total shares of `user` in this strategy, by
* querying the `strategyManager` contract
*/
function shares(address user) external view returns (uint256);
/**
* @notice Used to convert a number of shares to the equivalent amount of underlying tokens for this strategy.
* @notice In contrast to `sharesToUnderlying`, this function guarantees no state modifications
* @param amountShares is the amount of shares to calculate its conversion into the underlying token
* @return The amount of shares corresponding to the input `amountUnderlying`
* @dev Implementation for these functions in particular may vary significantly for different strategies
*/
function sharesToUnderlyingView(uint256 amountShares) external view returns (uint256);
/**
* @notice Used to convert an amount of underlying tokens to the equivalent amount of shares in this strategy.
* @notice In contrast to `underlyingToShares`, this function guarantees no state modifications
* @param amountUnderlying is the amount of `underlyingToken` to calculate its conversion into strategy shares
* @return The amount of shares corresponding to the input `amountUnderlying`
* @dev Implementation for these functions in particular may vary significantly for different strategies
*/
function underlyingToSharesView(uint256 amountUnderlying) external view returns (uint256);
/**
* @notice convenience function for fetching the current underlying value of all of the `user`'s shares in
* this strategy. In contrast to `userUnderlying`, this function guarantees no state modifications
*/
function userUnderlyingView(address user) external view returns (uint256);
/// @notice The underlying token for shares in this Strategy
function underlyingToken() external view returns (IERC20);
/// @notice The total number of extant shares in this Strategy
function totalShares() external view returns (uint256);
/// @notice Returns either a brief string explaining the strategy's goal & purpose, or a link to metadata that explains in more detail.
function explanation() external view returns (string memory);
}
/**
* @title Interface for the primary 'slashing' contract for EigenLayer.
* @author Layr Labs, Inc.
* @notice Terms of Service: https://docs.eigenlayer.xyz/overview/terms-of-service
* @notice See the `Slasher` contract itself for implementation details.
*/
interface ISlasher {
// struct used to store information about the current state of an operator's obligations to middlewares they are serving
struct MiddlewareTimes {
// The update block for the middleware whose most recent update was earliest, i.e. the 'stalest' update out of all middlewares the operator is serving
uint32 stalestUpdateBlock;
// The latest 'serveUntilBlock' from all of the middleware that the operator is serving
uint32 latestServeUntilBlock;
}
// struct used to store details relevant to a single middleware that an operator has opted-in to serving
struct MiddlewareDetails {
// the block at which the contract begins being able to finalize the operator's registration with the service via calling `recordFirstStakeUpdate`
uint32 registrationMayBeginAtBlock;
// the block before which the contract is allowed to slash the user
uint32 contractCanSlashOperatorUntilBlock;
// the block at which the middleware's view of the operator's stake was most recently updated
uint32 latestUpdateBlock;
}
/// @notice Emitted when a middleware times is added to `operator`'s array.
event MiddlewareTimesAdded(
address operator,
uint256 index,
uint32 stalestUpdateBlock,
uint32 latestServeUntilBlock
);
/// @notice Emitted when `operator` begins to allow `contractAddress` to slash them.
event OptedIntoSlashing(address indexed operator, address indexed contractAddress);
/// @notice Emitted when `contractAddress` signals that it will no longer be able to slash `operator` after the `contractCanSlashOperatorUntilBlock`.
event SlashingAbilityRevoked(
address indexed operator,
address indexed contractAddress,
uint32 contractCanSlashOperatorUntilBlock
);
/**
* @notice Emitted when `slashingContract` 'freezes' the `slashedOperator`.
* @dev The `slashingContract` must have permission to slash the `slashedOperator`, i.e. `canSlash(slasherOperator, slashingContract)` must return 'true'.
*/
event OperatorFrozen(address indexed slashedOperator, address indexed slashingContract);
/// @notice Emitted when `previouslySlashedAddress` is 'unfrozen', allowing them to again move deposited funds within EigenLayer.
event FrozenStatusReset(address indexed previouslySlashedAddress);
/**
* @notice Gives the `contractAddress` permission to slash the funds of the caller.
* @dev Typically, this function must be called prior to registering for a middleware.
*/
function optIntoSlashing(address contractAddress) external;
/**
* @notice Used for 'slashing' a certain operator.
* @param toBeFrozen The operator to be frozen.
* @dev Technically the operator is 'frozen' (hence the name of this function), and then subject to slashing pending a decision by a human-in-the-loop.
* @dev The operator must have previously given the caller (which should be a contract) the ability to slash them, through a call to `optIntoSlashing`.
*/
function freezeOperator(address toBeFrozen) external;
/**
* @notice Removes the 'frozen' status from each of the `frozenAddresses`
* @dev Callable only by the contract owner (i.e. governance).
*/
function resetFrozenStatus(address[] calldata frozenAddresses) external;
/**
* @notice this function is a called by middlewares during an operator's registration to make sure the operator's stake at registration
* is slashable until serveUntil
* @param operator the operator whose stake update is being recorded
* @param serveUntilBlock the block until which the operator's stake at the current block is slashable
* @dev adds the middleware's slashing contract to the operator's linked list
*/
function recordFirstStakeUpdate(address operator, uint32 serveUntilBlock) external;
/**
* @notice this function is a called by middlewares during a stake update for an operator (perhaps to free pending withdrawals)
* to make sure the operator's stake at updateBlock is slashable until serveUntil
* @param operator the operator whose stake update is being recorded
* @param updateBlock the block for which the stake update is being recorded
* @param serveUntilBlock the block until which the operator's stake at updateBlock is slashable
* @param insertAfter the element of the operators linked list that the currently updating middleware should be inserted after
* @dev insertAfter should be calculated offchain before making the transaction that calls this. this is subject to race conditions,
* but it is anticipated to be rare and not detrimental.
*/
function recordStakeUpdate(
address operator,
uint32 updateBlock,
uint32 serveUntilBlock,
uint256 insertAfter
) external;
/**
* @notice this function is a called by middlewares during an operator's deregistration to make sure the operator's stake at deregistration
* is slashable until serveUntil
* @param operator the operator whose stake update is being recorded
* @param serveUntilBlock the block until which the operator's stake at the current block is slashable
* @dev removes the middleware's slashing contract to the operator's linked list and revokes the middleware's (i.e. caller's) ability to
* slash `operator` once `serveUntil` is reached
*/
function recordLastStakeUpdateAndRevokeSlashingAbility(address operator, uint32 serveUntilBlock) external;
/// @notice The StrategyManager contract of EigenLayer
function strategyManager() external view returns (IStrategyManager);
/// @notice The DelegationManager contract of EigenLayer
function delegation() external view returns (IDelegationManager);
/**
* @notice Used to determine whether `staker` is actively 'frozen'. If a staker is frozen, then they are potentially subject to
* slashing of their funds, and cannot cannot deposit or withdraw from the strategyManager until the slashing process is completed
* and the staker's status is reset (to 'unfrozen').
* @param staker The staker of interest.
* @return Returns 'true' if `staker` themselves has their status set to frozen, OR if the staker is delegated
* to an operator who has their status set to frozen. Otherwise returns 'false'.
*/
function isFrozen(address staker) external view returns (bool);
/// @notice Returns true if `slashingContract` is currently allowed to slash `toBeSlashed`.
function canSlash(address toBeSlashed, address slashingContract) external view returns (bool);
/// @notice Returns the block until which `serviceContract` is allowed to slash the `operator`.
function contractCanSlashOperatorUntilBlock(
address operator,
address serviceContract
) external view returns (uint32);
/// @notice Returns the block at which the `serviceContract` last updated its view of the `operator`'s stake
function latestUpdateBlock(address operator, address serviceContract) external view returns (uint32);
/// @notice A search routine for finding the correct input value of `insertAfter` to `recordStakeUpdate` / `_updateMiddlewareList`.
function getCorrectValueForInsertAfter(address operator, uint32 updateBlock) external view returns (uint256);
/**
* @notice Returns 'true' if `operator` can currently complete a withdrawal started at the `withdrawalStartBlock`, with `middlewareTimesIndex` used
* to specify the index of a `MiddlewareTimes` struct in the operator's list (i.e. an index in `operatorToMiddlewareTimes[operator]`). The specified
* struct is consulted as proof of the `operator`'s ability (or lack thereof) to complete the withdrawal.
* This function will return 'false' if the operator cannot currently complete a withdrawal started at the `withdrawalStartBlock`, *or* in the event
* that an incorrect `middlewareTimesIndex` is supplied, even if one or more correct inputs exist.
* @param operator Either the operator who queued the withdrawal themselves, or if the withdrawing party is a staker who delegated to an operator,
* this address is the operator *who the staker was delegated to* at the time of the `withdrawalStartBlock`.
* @param withdrawalStartBlock The block number at which the withdrawal was initiated.
* @param middlewareTimesIndex Indicates an index in `operatorToMiddlewareTimes[operator]` to consult as proof of the `operator`'s ability to withdraw
* @dev The correct `middlewareTimesIndex` input should be computable off-chain.
*/
function canWithdraw(
address operator,
uint32 withdrawalStartBlock,
uint256 middlewareTimesIndex
) external returns (bool);
/**
* operator =>
* [
* (
* the least recent update block of all of the middlewares it's serving/served,
* latest time that the stake bonded at that update needed to serve until
* )
* ]
*/
function operatorToMiddlewareTimes(
address operator,
uint256 arrayIndex
) external view returns (MiddlewareTimes memory);
/// @notice Getter function for fetching `operatorToMiddlewareTimes[operator].length`
function middlewareTimesLength(address operator) external view returns (uint256);
/// @notice Getter function for fetching `operatorToMiddlewareTimes[operator][index].stalestUpdateBlock`.
function getMiddlewareTimesIndexStalestUpdateBlock(address operator, uint32 index) external view returns (uint32);
/// @notice Getter function for fetching `operatorToMiddlewareTimes[operator][index].latestServeUntil`.
function getMiddlewareTimesIndexServeUntilBlock(address operator, uint32 index) external view returns (uint32);
/// @notice Getter function for fetching `_operatorToWhitelistedContractsByUpdate[operator].size`.
function operatorWhitelistedContractsLinkedListSize(address operator) external view returns (uint256);
/// @notice Getter function for fetching a single node in the operator's linked list (`_operatorToWhitelistedContractsByUpdate[operator]`).
function operatorWhitelistedContractsLinkedListEntry(
address operator,
address node
) external view returns (bool, uint256, uint256);
}
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
/**
* @dev This is the interface that {BeaconProxy} expects of its beacon.
*/
interface IBeacon {
/**
* @dev Must return an address that can be used as a delegate call target.
*
* {BeaconProxy} will check that this address is a contract.
*/
function implementation() external view returns (address);
}
// ┏━━━┓━┏┓━┏┓━━┏━━━┓━━┏━━━┓━━━━┏━━━┓━━━━━━━━━━━━━━━━━━━┏┓━━━━━┏━━━┓━━━━━━━━━┏┓━━━━━━━━━━━━━━┏┓━
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// ┃┏━━┛━┃┃━┃┏┓┃┏━┛┏┛━━┃┃━┃┃━━━━━┃┃┃┃┃┏┓┃┃┏┓┃┃┏┓┃┃━━┫┣┫━┃┃━━━━━┃┃━┏┓┃┏┓┃┃┏┓┓━┃┃━┃┏┛┗━┓┃━┃┏━┛━┃┃━
// ┃┗━━┓━┃┗┓┃┃┃┃┃┃┗━┓┏┓┃┗━┛┃━━━━┏┛┗┛┃┃┃━┫┃┗┛┃┃┗┛┃┣━━┃┃┃━┃┗┓━━━━┃┗━┛┃┃┗┛┃┃┃┃┃━┃┗┓┃┃━┃┗┛┗┓┃┗━┓━┃┗┓
// ┗━━━┛━┗━┛┗┛┗┛┗━━━┛┗┛┗━━━┛━━━━┗━━━┛┗━━┛┃┏━┛┗━━┛┗━━┛┗┛━┗━┛━━━━┗━━━┛┗━━┛┗┛┗┛━┗━┛┗┛━┗━━━┛┗━━┛━┗━┛
// ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┃┃━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
// ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┗┛━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
// This interface is designed to be compatible with the Vyper version.
/// @notice This is the Ethereum 2.0 deposit contract interface.
/// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs
interface IETHPOSDeposit {
/// @notice A processed deposit event.
event DepositEvent(bytes pubkey, bytes withdrawal_credentials, bytes amount, bytes signature, bytes index);
/// @notice Submit a Phase 0 DepositData object.
/// @param pubkey A BLS12-381 public key.
/// @param withdrawal_credentials Commitment to a public key for withdrawals.
/// @param signature A BLS12-381 signature.
/// @param deposit_data_root The SHA-256 hash of the SSZ-encoded DepositData object.
/// Used as a protection against malformed input.
function deposit(
bytes calldata pubkey,
bytes calldata withdrawal_credentials,
bytes calldata signature,
bytes32 deposit_data_root
) external payable;
/// @notice Query the current deposit root hash.
/// @return The deposit root hash.
function get_deposit_root() external view returns (bytes32);
/// @notice Query the current deposit count.
/// @return The deposit count encoded as a little endian 64-bit number.
function get_deposit_count() external view returns (bytes memory);
}
// Adapted from OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol)
/**
* @dev These functions deal with verification of Merkle Tree proofs.
*
* The tree and the proofs can be generated using our
* https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
* You will find a quickstart guide in the readme.
*
* WARNING: You should avoid using leaf values that are 64 bytes long prior to
* hashing, or use a hash function other than keccak256 for hashing leaves.
* This is because the concatenation of a sorted pair of internal nodes in
* the merkle tree could be reinterpreted as a leaf value.
* OpenZeppelin's JavaScript library generates merkle trees that are safe
* against this attack out of the box.
*/
library Merkle {
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. The tree is built assuming `leaf` is
* the 0 indexed `index`'th leaf from the bottom left of the tree.
*
* Note this is for a Merkle tree using the keccak/sha3 hash function
*/
function verifyInclusionKeccak(
bytes memory proof,
bytes32 root,
bytes32 leaf,
uint256 index
) internal pure returns (bool) {
return processInclusionProofKeccak(proof, leaf, index) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. The tree is built assuming `leaf` is
* the 0 indexed `index`'th leaf from the bottom left of the tree.
*
* _Available since v4.4._
*
* Note this is for a Merkle tree using the keccak/sha3 hash function
*/
function processInclusionProofKeccak(
bytes memory proof,
bytes32 leaf,
uint256 index
) internal pure returns (bytes32) {
require(
proof.length != 0 && proof.length % 32 == 0,
"Merkle.processInclusionProofKeccak: proof length should be a non-zero multiple of 32"
);
bytes32 computedHash = leaf;
for (uint256 i = 32; i <= proof.length; i += 32) {
if (index % 2 == 0) {
// if ith bit of index is 0, then computedHash is a left sibling
assembly {
mstore(0x00, computedHash)
mstore(0x20, mload(add(proof, i)))
computedHash := keccak256(0x00, 0x40)
index := div(index, 2)
}
} else {
// if ith bit of index is 1, then computedHash is a right sibling
assembly {
mstore(0x00, mload(add(proof, i)))
mstore(0x20, computedHash)
computedHash := keccak256(0x00, 0x40)
index := div(index, 2)
}
}
}
return computedHash;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches the root of the tree. The tree is built assuming `leaf` is
* the 0 indexed `index`'th leaf from the bottom left of the tree.
*
* Note this is for a Merkle tree using the sha256 hash function
*/
function verifyInclusionSha256(
bytes memory proof,
bytes32 root,
bytes32 leaf,
uint256 index
) internal view returns (bool) {
return processInclusionProofSha256(proof, leaf, index) == root;
}
/**
* @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
* from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
* hash matches...
// [truncated — 295266 bytes total]
Read Contract
OPERATOR_CHURN_APPROVAL_TYPEHASH 0xca0de882 → bytes32
PUBKEY_REGISTRATION_TYPEHASH 0x9feab859 → bytes32
blsApkRegistry 0x5df45946 → address
calculateOperatorChurnApprovalDigestHash 0xaa3f680c → bytes32
churnApprover 0x054310e6 → address
eip712Domain 0x84b0196e → bytes1, string, string, uint256, address, bytes32, uint256[]
ejector 0x28f61b31 → address
getCurrentQuorumBitmap 0x871ef049 → uint192
getOperator 0x5865c60c → tuple
getOperatorFromId 0x296bb064 → address
getOperatorId 0x13542a4e → bytes32
getOperatorSetParams 0xe65797ad → tuple
getOperatorStatus 0xfd39105a → uint8
getQuorumBitmapAtBlockNumberByIndex 0x04ec6351 → uint192
getQuorumBitmapHistoryLength 0x03fd3492 → uint256
getQuorumBitmapIndicesAtBlockNumber 0xc391425e → uint32[]
getQuorumBitmapUpdateByIndex 0x1eb812da → tuple
indexRegistry 0x9e9923c2 → address
isChurnApproverSaltUsed 0x1478851f → bool
numRegistries 0xd72d8dd6 → uint256
owner 0x8da5cb5b → address
paused 0x5ac86ab7 → bool
paused 0x5c975abb → uint256
pauserRegistry 0x886f1195 → address
pubkeyRegistrationMessageHash 0x3c2a7f4c → tuple
quorumCount 0x9aa1653d → uint8
quorumUpdateBlockNumber 0x249a0c42 → uint256
registries 0x6347c900 → address
serviceManager 0x3998fdd3 → address
stakeRegistry 0x68304835 → address
Write Contract 18 functions
These functions modify contract state and require a wallet transaction to execute.
createQuorum 0x7f2ec40e
tuple operatorSetParams
uint96 minimumStake
tuple[] strategyParams
deregisterOperator 0xca4f2d97
bytes quorumNumbers
ejectOperator 0x6e3b17db
address operator
bytes quorumNumbers
initialize 0x404d5de8
address _initialOwner
address _churnApprover
address _ejector
address _pauserRegistry
uint256 _initialPausedStatus
tuple[] _operatorSetParams
uint96[] _minimumStakes
tuple[][] _strategyParams
pause 0x136439dd
uint256 newPausedStatus
pauseAll 0x595c6a67
No parameters
registerOperator 0x76e3c1c6
bytes quorumNumbers
string socket
tuple params
tuple operatorSignature
registerOperatorWithChurn 0x399063f1
bytes quorumNumbers
string socket
tuple params
tuple[] operatorKickParams
tuple churnApproverSignature
tuple operatorSignature
renounceOwnership 0x715018a6
No parameters
setChurnApprover 0x29d1e0c3
address _churnApprover
setEjector 0x2cdd1e86
address _ejector
setOperatorSetParams 0x1069589b
uint8 quorumNumber
tuple operatorSetParams
setPauserRegistry 0x10d67a2f
address newPauserRegistry
transferOwnership 0xf2fde38b
address newOwner
unpause 0xfabc1cbc
uint256 newPausedStatus
updateOperators 0x00cf2ab5
address[] operators
updateOperatorsForQuorum 0x5140a548
address[][] operatorsPerQuorum
bytes quorumNumbers
updateSocket 0x0cf4b767
string socket
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