From 005cf5c85434511356417414a6d0098b1eb50980 Mon Sep 17 00:00:00 2001
From: Salvatore Ingala <6681844+bigspider@users.noreply.github.com>
Date: Mon, 28 Oct 2024 15:52:46 +0100
Subject: [PATCH] Make sure to return an error if a Thorchain swap is attempted
 on Nano S

---
 src/process_transaction.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/process_transaction.c b/src/process_transaction.c
index 519c631a..03b60f79 100644
--- a/src/process_transaction.c
+++ b/src/process_transaction.c
@@ -211,6 +211,13 @@ static bool check_extra_id_extra_data(subcommand_e subcommand) {
         }
 
         if (has_extra_data) {
+#ifdef TARGET_NANOS
+            // We make sure that we return an error on Nano S, if a payin_extra_data is provided.
+            // Nano S does not support Thorchain.
+            PRINTF("Error: payin_extra_data is not supported on Nano S.\n");
+            return false;
+#endif
+
             // Size has to be header + 32 bytes hash
             if (extra->size != 33) {
                 PRINTF("Error: incorrect payin_extra_data size %d != 33; payin_extra_data = %.*H\n",