feat(ctb): Add Cancun activation timestamp to `PreimageOracle` (#9307)

* Add `CANCUN_ACTIVATION` timestamp to preimage oracle

* chores

* fix: add the cancun activation timestamp

* fix: add cancun activation field to full deploy config testdata:

---------
Co-authored-by: refcell <abigger87@gmail.com>

op-chain-ops/genesis/config.go

@@ -222,6 +222,8 @@ type DeployConfig struct {
 	PreimageOracleMinProposalSize uint64 `json:"preimageOracleMinProposalSize"`
 	// PreimageOracleChallengePeriod is the number of seconds that challengers have to challenge a large preimage proposal.
 	PreimageOracleChallengePeriod uint64 `json:"preimageOracleChallengePeriod"`
+	// PreimageOracleCancunActivationTimestamp is the timestamp at which blob preimages are able to be loaded into the preimage oracle.
+	PreimageOracleCancunActivationTimestamp uint64 `json:"preimageOracleCancunActivationTimestamp"`
 	// FundDevAccounts configures whether or not to fund the dev accounts. Should only be used
 	// during devnet deployments.
 	FundDevAccounts bool `json:"fundDevAccounts"`

op-chain-ops/genesis/testdata/test-deploy-config-full.json

@@ -73,6 +73,7 @@
   "faultGameSplitDepth": 0,
   "preimageOracleMinProposalSize": 1800000,
   "preimageOracleChallengePeriod": 86400,
+  "preimageOracleCancunActivationTimestamp": 0,
   "systemConfigStartBlock": 0,
   "requiredProtocolVersion": "0x0000000000000000000000000000000000000000000000000000000000000000",
   "recommendedProtocolVersion": "0x0000000000000000000000000000000000000000000000000000000000000000"

packages/contracts-bedrock/deploy-config/devnetL1-template.json

@@ -56,5 +56,6 @@
   "faultGameGenesisOutputRoot": "0x0000000000000000000000000000000000000000000000000000000000000000",
   "faultGameSplitDepth": 14,
   "preimageOracleMinProposalSize": 18000,
-  "preimageOracleChallengePeriod": 86400
+  "preimageOracleChallengePeriod": 86400,
+  "preimageOracleCancunActivationTimestamp": 0
 }

packages/contracts-bedrock/deploy-config/sepolia.json

@@ -49,5 +49,6 @@
   "faultGameGenesisOutputRoot": "0x6a2fb9128c8bc82eed49ee590fba3e975bd67fede20535d0d20b3000ea6d99b1",
   "faultGameSplitDepth": 32,
   "preimageOracleMinProposalSize": 1800000,
-  "preimageOracleChallengePeriod": 86400
+  "preimageOracleChallengePeriod": 86400,
+  "preimageOracleCancunActivationTimestamp": 1706655072
 }

packages/contracts-bedrock/scripts/Deploy.s.sol

@@ -616,7 +616,8 @@ contract Deploy is Deployer {
         console.log("Deploying PreimageOracle implementation");
         PreimageOracle preimageOracle = new PreimageOracle{ salt: _implSalt() }({
             _minProposalSize: cfg.preimageOracleMinProposalSize(),
-            _challengePeriod: cfg.preimageOracleChallengePeriod()
+            _challengePeriod: cfg.preimageOracleChallengePeriod(),
+            _cancunActivation: cfg.preimageOracleCancunActivationTimestamp()
         });
         save("PreimageOracle", address(preimageOracle));
         console.log("PreimageOracle deployed at %s", address(preimageOracle));

packages/contracts-bedrock/scripts/DeployConfig.s.sol

@@ -55,6 +55,7 @@ contract DeployConfig is Script {
     uint256 public faultGameMaxDuration;
     uint256 public preimageOracleMinProposalSize;
     uint256 public preimageOracleChallengePeriod;
+    uint256 public preimageOracleCancunActivationTimestamp;
     uint256 public systemConfigStartBlock;
     uint256 public requiredProtocolVersion;
     uint256 public recommendedProtocolVersion;
@@ -118,6 +119,8 @@ contract DeployConfig is Script {
 
             preimageOracleMinProposalSize = stdJson.readUint(_json, "$.preimageOracleMinProposalSize");
             preimageOracleChallengePeriod = stdJson.readUint(_json, "$.preimageOracleChallengePeriod");
+            preimageOracleCancunActivationTimestamp =
+                stdJson.readUint(_json, "$.preimageOracleCancunActivationTimestamp");
         }
     }
 

packages/contracts-bedrock/scripts/getting-started/config.sh

@@ -97,7 +97,8 @@ config=$(cat << EOL
   "faultGameSplitDepth": 14,
 
   "preimageOracleMinProposalSize": 1800000,
-  "preimageOracleChallengePeriod": 86400
+  "preimageOracleChallengePeriod": 86400,
+  "preimageOracleCancunActivationTimestamp": 0
 }
 EOL
 )

packages/contracts-bedrock/slither-report.json

@@ -1144,10 +1144,10 @@
     "impact": "Medium",
     "confidence": "Medium",
     "check": "uninitialized-local",
-    "description": "PreimageOracle.challengeFirstLPP(address,uint256,PreimageOracle.Leaf,bytes32[]).stateMatrix (src/cannon/PreimageOracle.sol#534) is a local variable never initialized\n",
+    "description": "PreimageOracle.challengeFirstLPP(address,uint256,PreimageOracle.Leaf,bytes32[]).stateMatrix (src/cannon/PreimageOracle.sol#541) is a local variable never initialized\n",
     "type": "variable",
     "name": "stateMatrix",
-    "start": 25088,
+    "start": 25480,
     "length": 40,
     "filename_relative": "src/cannon/PreimageOracle.sol"
   },

packages/contracts-bedrock/snapshots/abi/PreimageOracle.json

@@ -10,6 +10,11 @@
         "internalType": "uint256",
         "name": "_challengePeriod",
         "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_cancunActivation",
+        "type": "uint256"
       }
     ],
     "stateMutability": "nonpayable",
@@ -765,6 +770,11 @@
     "name": "BadProposal",
     "type": "error"
   },
+  {
+    "inputs": [],
+    "name": "CancunNotActive",
+    "type": "error"
+  },
   {
     "inputs": [],
     "name": "InvalidInputSize",

packages/contracts-bedrock/snapshots/state-diff/Kontrol-Deploy.json

@@ -1954,7 +1954,7 @@
           "newValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "previousValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "reverted": false,
-          "slot": "0x0000000000000000000000000000000000000000000000000000000000000037"
+          "slot": "0x0000000000000000000000000000000000000000000000000000000000000038"
         }
       ],
       "value": 0
@@ -1980,7 +1980,7 @@
           "newValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "previousValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "reverted": false,
-          "slot": "0x0000000000000000000000000000000000000000000000000000000000000038"
+          "slot": "0x0000000000000000000000000000000000000000000000000000000000000039"
         }
       ],
       "value": 0
@@ -2441,7 +2441,7 @@
           "newValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "previousValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "reverted": false,
-          "slot": "0x0000000000000000000000000000000000000000000000000000000000000037"
+          "slot": "0x0000000000000000000000000000000000000000000000000000000000000038"
         }
       ],
       "value": 0
@@ -2519,7 +2519,7 @@
           "newValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "previousValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "reverted": false,
-          "slot": "0x0000000000000000000000000000000000000000000000000000000000000038"
+          "slot": "0x0000000000000000000000000000000000000000000000000000000000000039"
         }
       ],
       "value": 0
@@ -7162,7 +7162,7 @@
           "newValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "previousValue": "0x0000000000000000000000000000000000000000000000000000000000000000",
           "reverted": false,
-          "slot": "0x0000000000000000000000000000000000000000000000000000000000000036"
+          "slot": "0x0000000000000000000000000000000000000000000000000000000000000037"
         }
       ],
       "value": 0

packages/contracts-bedrock/src/cannon/PreimageOracle.sol

@@ -16,6 +16,9 @@ contract PreimageOracle is IPreimageOracle {
     //                   Constants & Immutables                   //
     ////////////////////////////////////////////////////////////////
 
+    /// @notice The timestamp of Cancun activation on the current chain.
+    /// @custom:network-specific
+    uint256 internal immutable CANCUN_ACTIVATION;
     /// @notice The duration of the large preimage proposal challenge period.
     uint256 internal immutable CHALLENGE_PERIOD;
     /// @notice The minimum size of a preimage that can be proposed in the large preimage path.
@@ -77,9 +80,10 @@ contract PreimageOracle is IPreimageOracle {
     //                        Constructor                         //
     ////////////////////////////////////////////////////////////////
 
-    constructor(uint256 _minProposalSize, uint256 _challengePeriod) {
+    constructor(uint256 _minProposalSize, uint256 _challengePeriod, uint256 _cancunActivation) {
         MIN_LPP_SIZE_BYTES = _minProposalSize;
         CHALLENGE_PERIOD = _challengePeriod;
+        CANCUN_ACTIVATION = _cancunActivation;
 
         // Compute hashes in empty sparse Merkle tree. The first hash is not set, and kept as zero as the identity.
         for (uint256 height = 0; height < KECCAK_TREE_DEPTH - 1; height++) {
@@ -241,6 +245,9 @@ contract PreimageOracle is IPreimageOracle {
     )
         external
     {
+        // Prior to Cancun activation, the blob preimage precompile is not available.
+        if (block.timestamp < CANCUN_ACTIVATION) revert CancunNotActive();
+
         bytes32 key;
         bytes32 part;
         assembly {

packages/contracts-bedrock/src/cannon/libraries/CannonErrors.sol

@@ -39,3 +39,6 @@ error NotInitialized();
 
 /// @notice Thrown when the caller of a function is not an EOA.
 error NotEOA();
+
+/// @notice Thrown when a function that requires Cancun EVM features is called on at a time where Cancun is not enabled.
+error CancunNotActive();

packages/contracts-bedrock/test/cannon/MIPS.t.sol

@@ -12,7 +12,7 @@ contract MIPS_Test is CommonTest {
 
     function setUp() public virtual override {
         super.setUp();
-        oracle = new PreimageOracle(0, 0);
+        oracle = new PreimageOracle(0, 0, 0);
         mips = new MIPS(oracle);
         vm.store(address(mips), 0x0, bytes32(abi.encode(address(oracle))));
         vm.label(address(oracle), "PreimageOracle");

packages/contracts-bedrock/test/cannon/PreimageOracle.t.sol

@@ -15,7 +15,7 @@ contract PreimageOracle_Test is Test {
 
     /// @notice Sets up the testing suite.
     function setUp() public {
-        oracle = new PreimageOracle(0, 0);
+        oracle = new PreimageOracle(0, 0, 0);
         vm.label(address(oracle), "PreimageOracle");
     }
 
@@ -182,7 +182,11 @@ contract PreimageOracle_LargePreimageProposals_Test is Test {
 
     /// @notice Sets up the testing suite.
     function setUp() public {
-        oracle = new PreimageOracle({ _minProposalSize: MIN_SIZE_BYTES, _challengePeriod: CHALLENGE_PERIOD });
+        oracle = new PreimageOracle({
+            _minProposalSize: MIN_SIZE_BYTES,
+            _challengePeriod: CHALLENGE_PERIOD,
+            _cancunActivation: 0
+        });
         vm.label(address(oracle), "PreimageOracle");
 
         // Set `tx.origin` and `msg.sender` to `address(this)` so that it may behave like an EOA for `addLeavesLPP`.
@@ -204,7 +208,8 @@ contract PreimageOracle_LargePreimageProposals_Test is Test {
 
     /// @notice Tests that the `initLPP` function reverts when the part offset is out of bounds of the full preimage.
     function test_initLPP_sizeTooSmall_reverts() public {
-        oracle = new PreimageOracle({ _minProposalSize: 1000, _challengePeriod: CHALLENGE_PERIOD });
+        oracle =
+            new PreimageOracle({ _minProposalSize: 1000, _challengePeriod: CHALLENGE_PERIOD, _cancunActivation: 0 });
 
         // Allocate the preimage data.
         bytes memory data = new bytes(136);

packages/contracts-bedrock/test/mocks/AlphabetVM.sol

@@ -14,7 +14,7 @@ contract AlphabetVM is IBigStepper {
 
     constructor(Claim _absolutePrestate) {
         ABSOLUTE_PRESTATE = _absolutePrestate;
-        oracle = new PreimageOracle(0, 0);
+        oracle = new PreimageOracle(0, 0, 0);
     }
 
     /// @inheritdoc IBigStepper