From bcc0ea32d656babf88758ebfbf1f04a6be187a92 Mon Sep 17 00:00:00 2001
From: "rose.shahar" <rose.shahar@gmail.com>
Date: Thu, 15 Jan 2026 19:27:05 +0200
Subject: [PATCH] save in database the input and output of InternalTransactions

---
 .../java/org/tron/core/vm/program/Program.java   | 10 ++++++++++
 .../tron/common/runtime/InternalTransaction.java | 16 ++++++++++++++++
 .../tron/core/capsule/utils/TransactionUtil.java |  2 ++
 protocol/src/main/protos/core/Tron.proto         |  4 ++++
 4 files changed, 32 insertions(+)

diff --git a/actuator/src/main/java/org/tron/core/vm/program/Program.java b/actuator/src/main/java/org/tron/core/vm/program/Program.java
index 5da0b02ecb7..86daa5eaa57 100644
--- a/actuator/src/main/java/org/tron/core/vm/program/Program.java
+++ b/actuator/src/main/java/org/tron/core/vm/program/Program.java
@@ -816,6 +816,11 @@ this, new DataWord(newAddress), getContractAddress(), value, DataWord.ZERO(),
     // 4. CREATE THE CONTRACT OUT OF RETURN
     byte[] code = createResult.getHReturn();
 
+    // capture output (deployed code) on internal transaction for indexing
+    if (internalTx != null) {
+      internalTx.setOutput(code);
+    }
+
     if (code.length != 0 && VMConfig.allowTvmLondon() && code[0] == (byte) 0xEF) {
       createResult.setException(Program.Exception
           .invalidCodeException());
@@ -1083,6 +1088,11 @@ this, new DataWord(contextAddress),
       memorySaveLimited(offset, buffer, size);
 
       returnDataBuffer = buffer;
+
+      // capture output on internal transaction for indexing
+      if (internalTx != null) {
+        internalTx.setOutput(buffer);
+      }
     }
 
     // 5. REFUND THE REMAIN ENERGY
diff --git a/chainbase/src/main/java/org/tron/common/runtime/InternalTransaction.java b/chainbase/src/main/java/org/tron/common/runtime/InternalTransaction.java
index 06fe36cdea6..9a5c811e0bd 100644
--- a/chainbase/src/main/java/org/tron/common/runtime/InternalTransaction.java
+++ b/chainbase/src/main/java/org/tron/common/runtime/InternalTransaction.java
@@ -71,6 +71,11 @@ public class InternalTransaction {
    */
   private String extra;
 
+  /*
+   * output/return data of the internal call
+   */
+  private byte[] output;
+
 
   /**
    * Construct a root InternalTransaction
@@ -219,6 +224,17 @@ public String getExtra() {
     return extra == null ? "" : extra;
   }
 
+  public void setOutput(byte[] output) {
+    this.output = output;
+  }
+
+  public byte[] getOutput() {
+    if (output == null) {
+      return EMPTY_BYTE_ARRAY;
+    }
+    return output.clone();
+  }
+
   public final byte[] getHash() {
     if (!isEmpty(hash)) {
       return Arrays.copyOf(hash, hash.length);
diff --git a/chainbase/src/main/java/org/tron/core/capsule/utils/TransactionUtil.java b/chainbase/src/main/java/org/tron/core/capsule/utils/TransactionUtil.java
index c9e0d30b1e6..fd8b101cce4 100644
--- a/chainbase/src/main/java/org/tron/core/capsule/utils/TransactionUtil.java
+++ b/chainbase/src/main/java/org/tron/core/capsule/utils/TransactionUtil.java
@@ -169,6 +169,8 @@ public static Protocol.InternalTransaction buildInternalTransaction(InternalTran
     itBuilder.setNote(ByteString.copyFrom(it.getNote().getBytes()));
     itBuilder.setRejected(it.isRejected());
     itBuilder.setExtra(it.getExtra());
+    itBuilder.setData(ByteString.copyFrom(it.getData()));
+    itBuilder.setOutput(ByteString.copyFrom(it.getOutput()));
     return itBuilder.build();
   }
 
diff --git a/protocol/src/main/protos/core/Tron.proto b/protocol/src/main/protos/core/Tron.proto
index 2ffefbf9f3e..32a4ae98d86 100644
--- a/protocol/src/main/protos/core/Tron.proto
+++ b/protocol/src/main/protos/core/Tron.proto
@@ -648,6 +648,10 @@ message InternalTransaction {
   bytes note = 5;
   bool rejected = 6;
   string extra = 7;
+  // Input data of the internal transaction
+  bytes data = 8;
+  // Output/return data of the internal transaction
+  bytes output = 9;
 }
 
 message DelegatedResourceAccountIndex {