Launch GHO on Avalanche

.gitmodules

@@ -1,3 +1,10 @@
 [submodule "lib/aave-helpers"]
 	path = lib/aave-helpers
 	url = https://github.com/bgd-labs/aave-helpers
+[submodule "lib/ccip"]
+	path = lib/ccip
+	url = https://github.com/aave/ccip.git
+	branch = feat/1_5_1_token_pool
+[submodule "lib/gho-core"]
+	path = lib/gho-core
+	url = https://github.com/aave/gho-core.git

diffs/AaveV3Arbitrum_GHOAvaxLaunch_20241106_before_AaveV3Arbitrum_GHOAvaxLaunch_20241106_after.md

@@ -0,0 +1,15 @@
+## Emodes changed
+
+### EMode: Stablecoins(id: 1)
+
+
+
+### EMode: ETH correlated(id: 2)
+
+
+
+## Raw diff
+
+```json
+{}
+```

diffs/AaveV3Avalanche_GHOAvaxLaunch_20241106_before_AaveV3Avalanche_GHOAvaxLaunch_20241106_after.md

@@ -0,0 +1,15 @@
+## Emodes changed
+
+### EMode: Stablecoins(id: 1)
+
+
+
+### EMode: AVAX correlated(id: 2)
+
+
+
+## Raw diff
+
+```json
+{}
+```

foundry.toml

@@ -2,7 +2,7 @@
 src = 'src'
 test = 'tests'
 script = 'scripts'
-solc = '0.8.20'
+solc = '0.8.24'
 out = 'out'
 bytecode_hash = 'none'
 libs = ['lib']

remappings.txt

@@ -3,3 +3,5 @@ aave-helpers/=lib/aave-helpers/
 aave-v3-origin/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/src/
 forge-std/=lib/aave-helpers/lib/forge-std/src/
 solidity-utils/=lib/aave-helpers/lib/aave-address-book/lib/aave-v3-origin/lib/solidity-utils/src
+ccip/=lib/ccip/contracts/src/v0.8/ccip/
+gho-core/=lib/gho-core/src/contracts/

src/20241106_Multi_GHOAvaxLaunch/AaveV3Arbitrum_GHOAvaxLaunch_20241106.sol

@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import {RateLimiter} from 'ccip/libraries/RateLimiter.sol';
+import {TokenAdminRegistry} from 'ccip/tokenAdminRegistry/TokenAdminRegistry.sol';
+import {UpgradeableBurnMintTokenPool} from 'ccip/pools/GHO/UpgradeableBurnMintTokenPool.sol';
+import {UpgradeableTokenPool} from 'ccip/pools/GHO/UpgradeableTokenPool.sol';
+import {IProposalGenericExecutor} from 'aave-helpers/src/interfaces/IProposalGenericExecutor.sol';
+import {AaveV3ArbitrumAssets} from 'aave-address-book/AaveV3Arbitrum.sol';
+import {GovernanceV3Arbitrum} from 'aave-address-book/GovernanceV3Arbitrum.sol';
+import {MiscArbitrum} from 'aave-address-book/MiscArbitrum.sol';
+import {IGhoToken} from 'gho-core/gho/interfaces/IGhoToken.sol';
+import {IUpgradeablePool} from 'src/interfaces/ccip/IUpgradeablePool.sol';
+
+/**
+ * @title GHOAvaxLaunch
+ * @author Aave Labs
+ * - Snapshot: https://snapshot.org/#/aave.eth/proposal/0x2aed7eb8b03cb3f961cbf790bf2e2e1e449f841a4ad8bdbcdd223bb6ac69e719
+ * - Discussion: https://governance.aave.com/t/arfc-launch-gho-on-avalanche-set-aci-as-emissions-manager-for-rewards/19339
+ * @dev This payload consists of the following set of actions:
+ * 1. Accept ownership of CCIP TokenPool
+ * 2. Configure CCIP TokenPool for Ethereum
+ * 3. Configure CCIP TokenPool for Avalanche
+ * 4. Add CCIP TokenPool as GHO Facilitator (allowing burn and mint)
+ * 5. Accept administrator role from Chainlink token admin registry
+ * 6. Link token to pool on Chainlink token admin registry
+ */
+contract AaveV3Arbitrum_GHOAvaxLaunch_20241106 is IProposalGenericExecutor {
+  address public constant CCIP_RMN_PROXY = 0xC311a21e6fEf769344EB1515588B9d535662a145;
+  address public constant CCIP_ROUTER = 0x141fa059441E0ca23ce184B6A78bafD2A517DdE8;
+  address public constant CCIP_TOKEN_ADMIN_REGISTRY = 0x39AE1032cF4B334a1Ed41cdD0833bdD7c7E7751E;
+  // TODO: Update pool address if we deploy new one
+  address public constant CCIP_TOKEN_POOL = MiscArbitrum.GHO_CCIP_TOKEN_POOL;
+  address public constant AVAX_TOKEN_POOL = 0x5991A2dF15A8F6A256D3Ec51E99254Cd3fb576A9;
+  address public constant AVAX_GHO = 0x2e234DAe75C793f67A35089C9d99245E1C58470b;
+  uint256 public constant CCIP_BUCKET_CAPACITY = 1_000_000e18; // 1M
+  uint64 public constant CCIP_ETH_CHAIN_SELECTOR = 5009297550715157269;
+  uint64 public constant CCIP_AVAX_CHAIN_SELECTOR = 6433500567565415381;
+
+  function execute() external {
+    // TODO: Following code applies to case we deploy new pools
+    /*
+    // 1. Accept TokenPool ownership
+    UpgradeableBurnMintTokenPool(CCIP_TOKEN_POOL).acceptOwnership();
+
+    // 2. Configure CCIP TokenPool for Ethereum
+    // TODO: Set remote pool and token addresses after deployment?
+    _configureCcipTokenPool(CCIP_TOKEN_POOL, CCIP_ETH_CHAIN_SELECTOR, address(0), address(0));
+    */
+
+    // TODO: Update addresses if we deploy new pools
+    // 3. Configure CCIP TokenPool for Avalanche
+    _configureCcipTokenPool(CCIP_TOKEN_POOL, CCIP_AVAX_CHAIN_SELECTOR);
+
+    // TODO: Following code applies to case we deploy new pools
+    /*
+    // 4. Add CCIP TokenPool as GHO Facilitator
+    IGhoToken(AaveV3ArbitrumAssets.GHO_UNDERLYING).grantRole(
+      IGhoToken(AaveV3ArbitrumAssets.GHO_UNDERLYING).FACILITATOR_MANAGER_ROLE(),
+      GovernanceV3Arbitrum.EXECUTOR_LVL_1
+    );
+    IGhoToken(AaveV3ArbitrumAssets.GHO_UNDERLYING).grantRole(
+      IGhoToken(AaveV3ArbitrumAssets.GHO_UNDERLYING).BUCKET_MANAGER_ROLE(),
+      GovernanceV3Arbitrum.EXECUTOR_LVL_1
+    );
+    IGhoToken(AaveV3ArbitrumAssets.GHO_UNDERLYING).addFacilitator(
+      CCIP_TOKEN_POOL,
+      'CCIP TokenPool',
+      uint128(CCIP_BUCKET_CAPACITY)
+    );
+
+    // 5. Accept administrator role from Chainlink token manager
+    TokenAdminRegistry(CCIP_TOKEN_ADMIN_REGISTRY).acceptAdminRole(
+      AaveV3ArbitrumAssets.GHO_UNDERLYING
+    );
+
+    // 6. Link token to pool on Chainlink token admin registry
+    TokenAdminRegistry(CCIP_TOKEN_ADMIN_REGISTRY).setPool(
+      AaveV3ArbitrumAssets.GHO_UNDERLYING,
+      CCIP_TOKEN_POOL
+    );
+    */
+  }
+
+  function _configureCcipTokenPool(address tokenPool, uint64 chainSelector) internal {
+    IUpgradeablePool.ChainUpdate[] memory chainUpdates = new IUpgradeablePool.ChainUpdate[](1);
+    RateLimiter.Config memory rateConfig = RateLimiter.Config({
+      isEnabled: false,
+      capacity: 0,
+      rate: 0
+    });
+    chainUpdates[0] = IUpgradeablePool.ChainUpdate({
+      remoteChainSelector: chainSelector,
+      allowed: true,
+      outboundRateLimiterConfig: rateConfig,
+      inboundRateLimiterConfig: rateConfig
+    });
+    IUpgradeablePool(tokenPool).applyChainUpdates(chainUpdates);
+  }
+}