Introduce CheckNonZeroSender

bin/node/runtime/src/lib.rs

@@ -973,6 +973,7 @@ where
 			.saturating_sub(1);
 		let era = Era::mortal(period, current_block);
 		let extra = (
+			frame_system::CheckNonZeroSender::<Runtime>::new(),
 			frame_system::CheckSpecVersion::<Runtime>::new(),
 			frame_system::CheckTxVersion::<Runtime>::new(),
 			frame_system::CheckGenesis::<Runtime>::new(),
@@ -1322,6 +1323,7 @@ pub type BlockId = generic::BlockId<Block>;
 ///
 /// [`sign`]: <../../testing/src/keyring.rs.html>
 pub type SignedExtra = (
+	frame_system::CheckNonZeroSender<Runtime>,
 	frame_system::CheckSpecVersion<Runtime>,
 	frame_system::CheckTxVersion<Runtime>,
 	frame_system::CheckGenesis<Runtime>,

frame/system/src/extensions/mod.rs

@@ -18,6 +18,7 @@
 pub mod check_genesis;
 pub mod check_mortality;
 pub mod check_nonce;
+pub mod check_non_zero_sender;
 pub mod check_spec_version;
 pub mod check_tx_version;
 pub mod check_weight;

frame/system/src/lib.rs

@@ -117,7 +117,7 @@ pub mod weights;
 pub use extensions::{
 	check_genesis::CheckGenesis, check_mortality::CheckMortality, check_nonce::CheckNonce,
 	check_spec_version::CheckSpecVersion, check_tx_version::CheckTxVersion,
-	check_weight::CheckWeight,
+	check_weight::CheckWeight, check_non_zero_sender::CheckNonZeroSender,
 };
 // Backward compatible re-export.
 pub use extensions::check_mortality::CheckMortality as CheckEra;

primitives/runtime/src/transaction_validity.rs

@@ -79,6 +79,8 @@ pub enum InvalidTransaction {
 	/// A transaction with a mandatory dispatch. This is invalid; only inherent extrinsics are
 	/// allowed to have mandatory dispatches.
 	MandatoryDispatch,
+	/// The sending address is disabled or known to be invalid.
+	BadSigner,
 }
 
 impl InvalidTransaction {
@@ -109,6 +111,7 @@ impl From<InvalidTransaction> for &'static str {
 			InvalidTransaction::MandatoryDispatch =>
 				"Transaction dispatch is mandatory; transactions may not have mandatory dispatches.",
 			InvalidTransaction::Custom(_) => "InvalidTransaction custom error",
+			InvalidTransaction::BadSigner => "Invalid signing address",
 		}
 	}
 }