B2CA-1522: Add sender field in transaction

src/shared_context.h

@@ -127,6 +127,7 @@ typedef enum {
 #define NETWORK_STRING_MAX_SIZE 19
 
 typedef struct txStringProperties_s {
+    char fromAddress[43];
     char fullAddress[43];
     char fullAmount[79];  // 2^256 is 78 digits long
     char maxFee[50];

src_bagl/ui_flow_signTx.c

@@ -109,11 +109,18 @@ UX_STEP_NOCB(
       .title = "Amount",
       .text = strings.common.fullAmount
     });
+UX_STEP_NOCB(
+    ux_approval_from_step,
+    bnnn_paging,
+    {
+      .title = "From",
+      .text = strings.common.fromAddress,
+    });
 UX_STEP_NOCB(
     ux_approval_address_step,
     bnnn_paging,
     {
-      .title = "Address",
+      .title = "To",
       .text = strings.common.fullAddress,
     });
 
@@ -225,10 +232,16 @@ void ux_approve_tx(bool fromPlugin) {
         if (has_domain_name(&chain_id, tmpContent.txContent.destination)) {
             ux_approval_tx_flow[step++] = &ux_domain_name_step;
             if (N_storage.verbose_domain_name) {
+                if (strings.common.fromAddress[0] != 0) {
+                    ux_approval_tx_flow[step++] = &ux_approval_from_step;
+                }
                 ux_approval_tx_flow[step++] = &ux_approval_address_step;
             }
         } else {
 #endif  // HAVE_DOMAIN_NAME
+            if (strings.common.fromAddress[0] != 0) {
+                ux_approval_tx_flow[step++] = &ux_approval_from_step;
+            }
             ux_approval_tx_flow[step++] = &ux_approval_address_step;
 #ifdef HAVE_DOMAIN_NAME
         }

src_features/signTx/logic_signTx.c

@@ -346,12 +346,13 @@ __attribute__((noinline)) static bool finalize_parsing_helper(bool direct, bool
                               tmpCtx.transactionContext.hash,
                               32));
 
+    uint8_t msg_sender[ADDRESS_LENGTH] = {0};
+    get_public_key(msg_sender, sizeof(msg_sender));
+
     // Finalize the plugin handling
     if (dataContext.tokenContext.pluginStatus >= ETH_PLUGIN_RESULT_SUCCESSFUL) {
         eth_plugin_prepare_finalize(&pluginFinalize);
 
-        uint8_t msg_sender[ADDRESS_LENGTH] = {0};
-        get_public_key(msg_sender, sizeof(msg_sender));
         pluginFinalize.address = msg_sender;
 
         if (!eth_plugin_call(ETH_PLUGIN_FINALIZE, (void *) &pluginFinalize)) {
@@ -498,6 +499,19 @@ __attribute__((noinline)) static bool finalize_parsing_helper(bool direct, bool
             strlcpy(strings.common.fullAmount, displayBuffer, sizeof(strings.common.fullAmount));
         }
         PRINTF("Amount displayed: %s\n", strings.common.fullAmount);
+
+        if (G_called_from_swap) {
+            // Transaction parameters are managed by the Exchange caller app!
+            explicit_bzero(strings.common.fromAddress, sizeof(strings.common.fromAddress));
+        } else {
+            // Format the from address in a temporary buffer
+            address_to_string(msg_sender,
+                              ADDRESS_LENGTH,
+                              strings.common.fromAddress,
+                              sizeof(strings.common.fromAddress),
+                              chainConfig->chainId);
+            PRINTF("FROM Address displayed: %s\n", strings.common.fromAddress);
+        }
     }
 
     // Compute the max fee in a temporary buffer, if in swap case compare it with validated max fee,

src_nbgl/ui_approve_tx.c

@@ -120,6 +120,12 @@ static uint8_t setTagValuePairs(void) {
         pairs[nbPairs].value = strings.common.fullAmount;
         nbPairs++;
 
+        if (strings.common.fromAddress[0] != 0) {
+            pairs[nbPairs].item = "From";
+            pairs[nbPairs].value = strings.common.fromAddress;
+            nbPairs++;
+        }
+
 #ifdef HAVE_DOMAIN_NAME
         uint64_t chain_id = get_tx_chain_id();
         tx_approval_context.domain_name_match =
@@ -131,7 +137,7 @@ static uint8_t setTagValuePairs(void) {
         }
         if (!tx_approval_context.domain_name_match || N_storage.verbose_domain_name) {
 #endif
-            pairs[nbPairs].item = "Address";
+            pairs[nbPairs].item = "To";
             pairs[nbPairs].value = strings.common.fullAddress;
             nbPairs++;
 #ifdef HAVE_DOMAIN_NAME