From 603d51b9ccd372347ae051d3c89088ef25c9ea04 Mon Sep 17 00:00:00 2001
From: katzman <steve.katzman@coinbase.com>
Date: Wed, 6 Mar 2024 16:50:31 -0800
Subject: [PATCH] Add rollback script

---
 .../Makefile                                  | 19 +++++++++
 .../script/RollbackGasConfig.sol              | 39 +++++++++++++++++++
 .../script/UpdateGasConfig.sol                |  2 +-
 3 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100644 mainnet/2024-03-07-ecotome-sysconfig-updates/script/RollbackGasConfig.sol

diff --git a/mainnet/2024-03-07-ecotome-sysconfig-updates/Makefile b/mainnet/2024-03-07-ecotome-sysconfig-updates/Makefile
index 6541d849..885410b9 100644
--- a/mainnet/2024-03-07-ecotome-sysconfig-updates/Makefile
+++ b/mainnet/2024-03-07-ecotome-sysconfig-updates/Makefile
@@ -23,3 +23,22 @@ approve-update-gas-config:
 execute:
 	forge script --rpc-url $(L1_RPC_URL) UpdateGasConfig \
 	--sig "run()" --ledger -hd-paths "m/44'/60'/$(LEDGER_ACCOUNT)'/0/0"
+
+
+.PHONY: sign-rollback-gas-config
+sign-update-gas-config: 
+	$(GOPATH)/bin/eip712sign --ledger --hd-paths "m/44'/60'/$(LEDGER_ACCOUNT)'/0/0" -- \
+	forge script --rpc-url $(L1_RPC_URL) RollbackGasConfig \
+	--sig "sign()"
+
+.PHONY: approve-rollback-gas-config
+approve-update-gas-config:
+	forge script --rpc-url $(L1_RPC_URL) RollbackGasConfig \
+	--sig "approve(address,bytes)" $(SYSTEM_CONFIG_OWNER) $(SIGNATURES) \
+	--ledger --hd-paths "m/44'/60'/$(LEDGER_ACCOUNT)'/0/0" \
+	--broadcast
+
+.PHONY: execute-rollback
+execute:
+	forge script --rpc-url $(L1_RPC_URL) RollbackGasConfig \
+	--sig "run()" --ledger -hd-paths "m/44'/60'/$(LEDGER_ACCOUNT)'/0/0"
diff --git a/mainnet/2024-03-07-ecotome-sysconfig-updates/script/RollbackGasConfig.sol b/mainnet/2024-03-07-ecotome-sysconfig-updates/script/RollbackGasConfig.sol
new file mode 100644
index 00000000..ce6f8a82
--- /dev/null
+++ b/mainnet/2024-03-07-ecotome-sysconfig-updates/script/RollbackGasConfig.sol
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.15;
+
+import {SystemConfig} from "@eth-optimism-bedrock/src/L1/SystemConfig.sol";
+import {MultisigBuilder, IMulticall3} from "@base-contracts/script/universal/MultisigBuilder.sol";
+
+contract RollbackGasConfig is MultisigBuilder {
+
+    address internal SYSTEM_CONFIG_OWNER = vm.envAddress("SYSTEM_CONFIG_OWNER");
+    address internal L1_SYSTEM_CONFIG = vm.envAddress("L1_SYSTEM_CONFIG_ADDRESS");
+    uint256 internal FALLBACK_SCALAR = vm.envUint("FALLBACK_SCALAR");
+
+    function _postCheck() internal override view {
+        require(SystemConfig(L1_SYSTEM_CONFIG).scalar() == FALLBACK_SCALAR);
+        require(SystemConfig(L1_SYSTEM_CONFIG).overhead() == 0);
+    }
+
+    function _buildCalls() internal override view returns (IMulticall3.Call3[] memory) {
+        IMulticall3.Call3[] memory calls = new IMulticall3.Call3[](1);
+
+        calls[0] = IMulticall3.Call3({
+            target: L1_SYSTEM_CONFIG,
+            allowFailure: false,
+            callData: abi.encodeCall(
+                SystemConfig.setGasConfig,
+                (
+                0, // overhead is not used post Ecotome
+                FALLBACK_SCALAR
+                )
+            )
+        });
+
+        return calls;
+    }
+
+    function _ownerSafe() internal override view returns (address) {
+        return SYSTEM_CONFIG_OWNER;
+    }
+}
\ No newline at end of file
diff --git a/mainnet/2024-03-07-ecotome-sysconfig-updates/script/UpdateGasConfig.sol b/mainnet/2024-03-07-ecotome-sysconfig-updates/script/UpdateGasConfig.sol
index 77b898b8..91f70b74 100644
--- a/mainnet/2024-03-07-ecotome-sysconfig-updates/script/UpdateGasConfig.sol
+++ b/mainnet/2024-03-07-ecotome-sysconfig-updates/script/UpdateGasConfig.sol
@@ -2,7 +2,7 @@
 pragma solidity 0.8.15;
 
 import {SystemConfig} from "@eth-optimism-bedrock/src/L1/SystemConfig.sol";
-import "@base-contracts/script/universal/MultisigBuilder.sol";
+import {MultisigBuilder, IMulticall3} from "@base-contracts/script/universal/MultisigBuilder.sol";
 
 contract UpdateGasConfig is MultisigBuilder {