[IFMON] Add first netsh helper dll

Run 'add helper ifmon.dll' in netsh to load the ifmon helper.

Author: EricKohl

dll/win32/CMakeLists.txt

@@ -57,6 +57,7 @@ add_subdirectory(iccvid)
 add_subdirectory(icmp)
 add_subdirectory(ieframe)
 add_subdirectory(iernonce)
+add_subdirectory(ifmon)
 add_subdirectory(imaadp32.acm)
 add_subdirectory(imagehlp)
 add_subdirectory(inetcomm)

dll/win32/ifmon/CMakeLists.txt

@@ -0,0 +1,15 @@
+
+spec2def(ifmon.dll ifmon.spec)
+
+list(APPEND SOURCE
+    guid.c
+    ifmon.c
+    ifmon.rc
+    interface.c
+    ip.c
+    ${CMAKE_CURRENT_BINARY_DIR}/ifmon.def)
+
+add_library(ifmon MODULE ${SOURCE})
+set_module_type(ifmon win32dll UNICODE)
+add_importlibs(ifmon netsh iphlpapi msvcrt kernel32 ntdll)
+add_cd_file(TARGET ifmon DESTINATION reactos/system32 FOR all)

dll/win32/ifmon/guid.c

@@ -0,0 +1,6 @@
+
+#define INITGUID
+#include <guiddef.h>
+
+#include "guid.h"
+

dll/win32/ifmon/guid.h

@@ -0,0 +1,5 @@
+
+DEFINE_GUID(GUID_IFMON_INTERFACE, 0x0705eca1, 0x7aac, 0x11d2, 0x89, 0xdc, 0x00, 0x60, 0x08, 0xb0, 0xe5, 0xb9);
+//DEFINE_GUID(GUID_IFMON_INTERFACE, 0x0705ECB2, 0x7AAC, 0x11D2, 0x89, 0xDC, 0x00, 0x60, 0x08, 0xB0, 0xE5, 0xB9);
+DEFINE_GUID(GUID_IFMON_IP, 0x725588AC, 0x7A11, 0x4220, 0xA1, 0x21, 0xC9, 0x2C, 0x91, 0x5E, 0x8B, 0x73);
+

dll/win32/ifmon/ifmon.c

@@ -0,0 +1,49 @@
+/*
+ * PROJECT:    ReactOS IF Monitor DLL
+ * LICENSE:    GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
+ * PURPOSE:    NetSh Helper main functions
+ * COPYRIGHT:  Copyright 2025 Eric Kohl <[email protected]>
+ */
+
+#include "precomp.h"
+
+#define NDEBUG
+#include <debug.h>
+
+#include "guid.h"
+#include "resource.h"
+
+HINSTANCE hDllInstance;
+
+DWORD
+WINAPI
+InitHelperDll(
+    _In_ DWORD dwNetshVersion,
+    _Out_ PVOID pReserved)
+{
+    DWORD dwError;
+
+    dwError = RegisterInterfaceHelper();
+    if (dwError == ERROR_SUCCESS)
+        dwError = RegisterIpHelper();
+
+    return dwError;
+}
+
+
+BOOL WINAPI
+DllMain(
+    _In_ HINSTANCE hinstDLL,
+    _In_ DWORD dwReason,
+    _In_ LPVOID lpvReserved)
+{
+    switch (dwReason)
+    {
+        case DLL_PROCESS_ATTACH:
+            hDllInstance = hinstDLL;
+            DisableThreadLibraryCalls(hinstDLL);
+            break;
+    }
+
+    return TRUE;
+}

dll/win32/ifmon/ifmon.rc

@@ -0,0 +1,19 @@
+#include <windef.h>
+#include <winuser.h>
+
+#include "resource.h"
+
+#define REACTOS_VERSION_DLL
+#define REACTOS_STR_FILE_DESCRIPTION  "ReactOS IF Monitor DLL"
+#define REACTOS_STR_INTERNAL_NAME     "ifmon"
+#define REACTOS_STR_ORIGINAL_FILENAME "ifmon.dll"
+#include <reactos/version.rc>
+
+#include <reactos/manifest_dll.rc>
+
+/* UTF-8 */
+#pragma code_page(65001)
+
+#ifdef LANGUAGE_EN_US
+    #include "lang/en-US.rc"
+#endif

dll/win32/ifmon/ifmon.spec

@@ -0,0 +1 @@
+@ stdcall InitHelperDll(long ptr)

dll/win32/ifmon/interface.c

@@ -0,0 +1,106 @@
+/*
+ * PROJECT:    ReactOS IF Monitor DLL
+ * LICENSE:    GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
+ * PURPOSE:    NetSh Helper interface context functions
+ * COPYRIGHT:  Copyright 2025 Eric Kohl <[email protected]>
+ */
+
+#include "precomp.h"
+
+#include <guiddef.h>
+
+#define NDEBUG
+#include <debug.h>
+
+#include "guid.h"
+#include "resource.h"
+
+static
+DWORD
+WINAPI
+InterfaceShowInterface(
+    LPCWSTR pwszMachine,
+    LPWSTR *argv,
+    DWORD dwCurrentIndex,
+    DWORD dwArgCount,
+    DWORD dwFlags,
+    LPCVOID pvData,
+    BOOL *pbDone);
+
+static
+CMD_ENTRY
+InterfaceShowCommands[] = 
+{
+    {L"interface", InterfaceShowInterface, IDS_HLP_INTERFACE_SHOW_INTERFACE, IDS_HLP_INTERFACE_SHOW_INTERFACE_EX, 0}
+};
+
+static
+CMD_GROUP_ENTRY
+InterfaceGroups[] = 
+{
+    {L"show", IDS_HLP_INTERFACE_SHOW, sizeof(InterfaceShowCommands) / sizeof(CMD_ENTRY), 0, InterfaceShowCommands, NULL},
+};
+
+
+static
+DWORD
+WINAPI
+InterfaceShowInterface(
+    LPCWSTR pwszMachine,
+    LPWSTR *argv,
+    DWORD dwCurrentIndex,
+    DWORD dwArgCount,
+    DWORD dwFlags,
+    LPCVOID pvData,
+    BOOL *pbDone)
+{
+    PrintMessage(L"InterfaceShowInterface(): Not implemented yet!\n");
+
+    return ERROR_SUCCESS;
+}
+
+
+DWORD
+WINAPI
+InterfaceStart(
+    _In_ const GUID *pguidParent,
+    _In_ DWORD dwVersion)
+{
+    NS_CONTEXT_ATTRIBUTES ContextAttributes;
+
+    DPRINT1("InterfaceStart()\n");
+
+    ZeroMemory(&ContextAttributes, sizeof(ContextAttributes));
+    ContextAttributes.dwVersion = 1;
+    ContextAttributes.pwszContext = L"interface";
+    ContextAttributes.guidHelper = GUID_IFMON_INTERFACE;
+
+    ContextAttributes.ulNumTopCmds = 0;
+    ContextAttributes.pTopCmds = NULL;
+
+    ContextAttributes.ulNumGroups = sizeof(InterfaceGroups) / sizeof(CMD_GROUP_ENTRY);
+    ContextAttributes.pCmdGroups = InterfaceGroups;
+
+    RegisterContext(&ContextAttributes);
+
+    return ERROR_SUCCESS;
+}
+
+
+DWORD
+WINAPI
+RegisterInterfaceHelper(VOID)
+{
+    NS_HELPER_ATTRIBUTES HelperAttributes;
+
+    DPRINT1("RegisterInterfaceHelper()\n");
+
+    ZeroMemory(&HelperAttributes, sizeof(HelperAttributes));
+    HelperAttributes.dwVersion = 1;
+    HelperAttributes.guidHelper = GUID_IFMON_INTERFACE;
+    HelperAttributes.pfnStart = InterfaceStart;
+    HelperAttributes.pfnStop = NULL;
+    RegisterHelper(NULL, &HelperAttributes);
+
+    return ERROR_SUCCESS;
+}