From 89cd5f23ba48ad95473f4a19ee87471e07ecbf34 Mon Sep 17 00:00:00 2001
From: zy <zhangyang@geedgenetworks.com>
Date: Fri, 12 Jan 2024 02:56:19 -0500
Subject: [PATCH] add linux tap -> netif

---
 src/Controls.cpp     | 15 +++++++++++++++
 src/LwipLinuxTap.cpp | 20 ++++++++++++++++++++
 src/LwipLinuxTap.h   | 11 +++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 src/LwipLinuxTap.cpp
 create mode 100644 src/LwipLinuxTap.h

diff --git a/src/Controls.cpp b/src/Controls.cpp
index 8aa0a72..a8acfdb 100644
--- a/src/Controls.cpp
+++ b/src/Controls.cpp
@@ -22,6 +22,10 @@
 #include "Signals.hpp"
 #include "VirtualTap.hpp"
 
+
+#include <lwip/tcpip.h>
+#include "LwipLinuxTap.h"
+
 #include <string.h>
 
 using namespace ZeroTier;
@@ -559,9 +563,20 @@ void* _runNodeService(void* arg)
     return NULL;
 }
 
+void testtap(){
+    tcpip_init(nullptr, nullptr);
+    ip4_addr_t ipaddr, netmask, gw;
+    IP4_ADDR(&gw, 172, 2, 0, 1);
+    IP4_ADDR(&ipaddr, 172, 2, 0, 100);
+    IP4_ADDR(&netmask, 255, 255, 255, 0);
+    init_default_netif(&ipaddr, &netmask, &gw);
+    netif_set_up(&get_default_netif());
+}
+
 int zts_node_start()
 {
     ACQUIRE_SERVICE_OFFLINE();
+    testtap();
     // Start TCP/IP stack
     zts_lwip_driver_init();
     // Start callback thread
diff --git a/src/LwipLinuxTap.cpp b/src/LwipLinuxTap.cpp
new file mode 100644
index 0000000..68fc876
--- /dev/null
+++ b/src/LwipLinuxTap.cpp
@@ -0,0 +1,20 @@
+#include "lwip/netif.h"
+#include "lwip/ip_addr.h"
+#include "lwip/tcpip.h"
+extern "C" {
+#include "netif/tapif.h"
+}
+
+static netif default_network_interface;
+
+void init_default_netif(const ip4_addr_t* ipaddr, const ip4_addr_t* netmask, const ip4_addr_t* gw)
+{
+    netif_add(&default_network_interface, ipaddr, netmask, gw, nullptr, tapif_init, tcpip_input);
+
+    netif_set_default(&default_network_interface);
+}
+
+netif& get_default_netif()
+{
+    return default_network_interface;
+}
diff --git a/src/LwipLinuxTap.h b/src/LwipLinuxTap.h
new file mode 100644
index 0000000..d81691d
--- /dev/null
+++ b/src/LwipLinuxTap.h
@@ -0,0 +1,11 @@
+#ifndef LWIP_LINUX_UNIX_TAP_NETWORK_INTERFACE_H
+#define LWIP_LINUX_UNIX_TAP_NETWORK_INTERFACE_H
+
+#include "lwip/netif.h"
+
+void init_default_netif(const ip4_addr_t* ipaddr, const ip4_addr_t* netmask, const ip4_addr_t* gw);
+
+netif& get_default_netif();
+
+
+#endif //LWIP_LINUX_UNIX_TAP_NETWORK_INTERFACE_H
\ No newline at end of file