Ledger messaging cleanup (#8506)

remote-wallet/src/ledger.rs

@@ -12,6 +12,7 @@ const HARDENED_BIT: u32 = 1 << 31;
 const APDU_TAG: u8 = 0x05;
 const APDU_CLA: u8 = 0xe0;
 const APDU_PAYLOAD_HEADER_LEN: usize = 8;
+const P1_NON_CONFIRM: u8 = 0x00;
 const P1_CONFIRM: u8 = 0x01;
 const P2_EXTEND: u8 = 0x01;
 const P2_MORE: u8 = 0x02;
@@ -197,15 +198,15 @@ impl LedgerWallet {
             0x6982 => Err(RemoteWalletError::Protocol(
                 "Security status not satisfied (Canceled by user)",
             )),
+            0x6985 => Err(RemoteWalletError::UserCancel),
             0x6a80 => Err(RemoteWalletError::Protocol("Invalid data")),
             0x6a82 => Err(RemoteWalletError::Protocol("File not found")),
-            0x6a85 => Err(RemoteWalletError::UserCancel),
             0x6b00 => Err(RemoteWalletError::Protocol("Incorrect parameters")),
             0x6d00 => Err(RemoteWalletError::Protocol(
                 "Not implemented. Make sure the Ledger Solana Wallet app is running.",
             )),
             0x6faa => Err(RemoteWalletError::Protocol(
-                "Your Ledger needs to be unplugged",
+                "Your Ledger device needs to be unplugged",
             )),
             0x6f00..=0x6fff => Err(RemoteWalletError::Protocol("Internal error")),
             0x9000 => Ok(()),
@@ -224,6 +225,9 @@ impl LedgerWallet {
         data: &[u8],
     ) -> Result<Vec<u8>, RemoteWalletError> {
         self.write(command, p1, p2, data)?;
+        if p1 == P1_CONFIRM {
+            println!("Waiting for remote wallet to approve...");
+        }
         self.read()
     }
 
@@ -279,7 +283,11 @@ impl RemoteWallet for LedgerWallet {
 
         let key = self.send_apdu(
             commands::GET_PUBKEY,
-            if confirm_key { 1 } else { 0 },
+            if confirm_key {
+                P1_CONFIRM
+            } else {
+                P1_NON_CONFIRM
+            },
             0,
             &derivation_path,
         )?;

remote-wallet/src/remote_wallet.rs

@@ -47,7 +47,7 @@ pub enum RemoteWalletError {
     #[error("pubkey not found for given address")]
     PubkeyNotFound,
 
-    #[error("operation has been cancelled")]
+    #[error("remote wallet operation rejected by the user")]
     UserCancel,
 }
 
@@ -62,7 +62,9 @@ impl From<RemoteWalletError> for SignerError {
             RemoteWalletError::InvalidInput(input) => SignerError::InvalidInput(input),
             RemoteWalletError::NoDeviceFound => SignerError::NoDeviceFound,
             RemoteWalletError::Protocol(e) => SignerError::Protocol(e.to_string()),
-            RemoteWalletError::UserCancel => SignerError::UserCancel,
+            RemoteWalletError::UserCancel => {
+                SignerError::UserCancel("remote wallet operation rejected by the user".to_string())
+            }
             _ => SignerError::CustomError(err.to_string()),
         }
     }

sdk/src/signature.rs

@@ -219,8 +219,8 @@ pub enum SignerError {
     #[error("device protocol error: {0}")]
     Protocol(String),
 
-    #[error("operation has been cancelled")]
-    UserCancel,
+    #[error("{0}")]
+    UserCancel(String),
 }
 
 #[derive(Clone, Debug, Default)]