From d529048e9ba286af275d9cefc0ebae9800c34f76 Mon Sep 17 00:00:00 2001
From: lonkaars <loek@pipeframe.xyz>
Date: Wed, 1 May 2024 20:01:42 +0200
Subject: WIP packet injection

---
 src/frontend/qt_sdl/LocalMP.cpp |  6 +-----
 src/frontend/qt_sdl/Window.cpp  | 45 +++++++++++++++++++++++++++++++++++++++++
 src/frontend/qt_sdl/Window.h    |  6 ++++++
 src/vsr.h                       | 13 ++++++++++++
 4 files changed, 65 insertions(+), 5 deletions(-)
 create mode 100644 src/vsr.h

diff --git a/src/frontend/qt_sdl/LocalMP.cpp b/src/frontend/qt_sdl/LocalMP.cpp
index b2e307e..7fe4f64 100644
--- a/src/frontend/qt_sdl/LocalMP.cpp
+++ b/src/frontend/qt_sdl/LocalMP.cpp
@@ -16,11 +16,6 @@
     with melonDS. If not, see http://www.gnu.org/licenses/.
 */
 
-// VSR-specific experiments
-
-// #define VSR_MESSAGE_FIDDLING 1
-#define VSR_DUMP_MESSAGES 1
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -45,6 +40,7 @@
 #include "Platform.h"
 
 #include <stdint.h>
+#include "../../vsr.h"
 
 #ifdef VSR_DUMP_MESSAGES
 #include <pcap/pcap.h>
diff --git a/src/frontend/qt_sdl/Window.cpp b/src/frontend/qt_sdl/Window.cpp
index 23ba784..d1f16a1 100644
--- a/src/frontend/qt_sdl/Window.cpp
+++ b/src/frontend/qt_sdl/Window.cpp
@@ -81,6 +81,37 @@
 #include "ArchiveUtil.h"
 #include "CameraManager.h"
 
+#include "../../vsr.h"
+
+#ifdef VSR_INJECTION
+#include <fstream>
+
+void MainWindow::injectPacket(int type) {
+    QString input_path = QFileDialog::getOpenFileName(this,
+        "Select packet data file", QDir::currentPath(), "Raw data (*.bin)");
+
+    if (input_path.length() == 0) {
+        printf("[VSR] inject packet aborted!\n");
+        return;
+    }
+
+    printf("[VSR] injecting %s...\n", input_path.toStdString().c_str());
+
+    std::ifstream is(input_path.toStdString());
+    std::istream_iterator<uint8_t> start(is), end;
+    std::vector<uint8_t> buf(start, end);
+
+    // TODO: is this melonDS::NDS::SysTimestamp???
+    melonDS::u64 timestamp = 0;
+
+    switch(type) {
+        case 0: return (void) LocalMP::SendPacket(buf.data(), buf.size(), timestamp);
+        case 1: return (void) LocalMP::SendCmd(buf.data(), buf.size(), timestamp);
+        case 3: return (void) LocalMP::SendAck(buf.data(), buf.size(), timestamp);
+    }
+}
+#endif
+
 using namespace melonDS;
 
 // TEMP
@@ -574,6 +605,20 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent)
         actAudioSync->setCheckable(true);
         connect(actAudioSync, &QAction::triggered, this, &MainWindow::onChangeAudioSync);
     }
+#ifdef VSR_INJECTION
+    {
+        QMenu* menu = menubar->addMenu("Inject");
+
+        QAction* actInjectNormal = menu->addAction("Normal...");
+        connect(actInjectNormal, &QAction::triggered, this, [this](){ injectPacket(0); });
+
+        QAction* actInjectCmd = menu->addAction("CMD...");
+        connect(actInjectCmd, &QAction::triggered, this, [this](){ injectPacket(1); });
+
+        QAction* actInjectAck = menu->addAction("ACK...");
+        connect(actInjectAck, &QAction::triggered, this, [this](){ injectPacket(3); });
+    }
+#endif
     setMenuBar(menubar);
 
     resize(Config::WindowWidth, Config::WindowHeight);
diff --git a/src/frontend/qt_sdl/Window.h b/src/frontend/qt_sdl/Window.h
index bc20748..f8d3e95 100644
--- a/src/frontend/qt_sdl/Window.h
+++ b/src/frontend/qt_sdl/Window.h
@@ -35,6 +35,8 @@
 
 #include "Screen.h"
 
+#include "../../vsr.h"
+
 
 class EmuThread;
 
@@ -223,6 +225,10 @@ private:
 
     void createScreenPanel();
 
+#ifdef VSR_INJECTION
+    void injectPacket(int type);
+#endif
+
     bool pausedManually = false;
 
     int oldW, oldH;
diff --git a/src/vsr.h b/src/vsr.h
new file mode 100644
index 0000000..78b4950
--- /dev/null
+++ b/src/vsr.h
@@ -0,0 +1,13 @@
+#pragma once
+
+/** This is a central file for contolling VSR-specific experiments */
+
+// corrupt instance=0's messages after 20 seconds
+// #define VSR_MESSAGE_FIDDLING
+
+// dump all sent Ni-Fi packets
+// #define VSR_DUMP_MESSAGES
+
+// add "Inject" menu bar item
+#define VSR_INJECTION
+
-- 
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