AA validation (#250)

Author: shohamc1

remote/ethbackend.proto

@@ -64,6 +64,8 @@ service ETHBACKEND {
   rpc BorTxnLookup(BorTxnLookupRequest) returns (BorTxnLookupReply);
 
   rpc BorEvents(BorEventsRequest) returns (BorEventsReply);
+
+  rpc AAValidation(AAValidationRequest) returns (AAValidationReply);
 }
 
 enum Event {
@@ -214,3 +216,11 @@ message EngineGetPayloadBodiesByRangeV1Request {
   uint64 start = 1;
   uint64 count = 2;
 } 
+
+message AAValidationRequest {
+  types.AccountAbstractionTransaction tx = 1;
+}
+
+message AAValidationReply {
+  bool valid = 1;
+}

types/types.proto

@@ -133,3 +133,33 @@ message ExecutionPayloadBodyV1 {
   repeated bytes transactions = 1;
   repeated Withdrawal withdrawals = 2;
 }
+
+message AccountAbstractionTransaction {
+  uint64 nonce = 1;
+  bytes chain_id = 2;
+  bytes tip = 3;
+  bytes fee_cap = 4;
+  uint64 gas = 5;
+
+  bytes sender_address = 6;
+  repeated Authorization authorizations = 7;
+  bytes execution_data = 8;
+  bytes paymaster = 9;
+  bytes paymaster_data = 10;
+  bytes deployer = 11;
+  bytes deployer_data = 12;
+  bytes builder_fee = 13;
+  uint64 validation_gas_limit = 14;
+  uint64 paymaster_validation_gas_limit = 15;
+  uint64 post_op_gas_limit = 16;
+  bytes nonce_key = 17;
+}
+
+message Authorization {
+  uint64 chain_id = 1;
+  bytes address = 2;
+  uint64 nonce = 3;
+  uint32 y_parity = 4;
+  bytes r = 5;
+  bytes s = 6;
+}