From 98d651c47de0b4906abc19d97ce7ea6d5978f0d9 Mon Sep 17 00:00:00 2001
From: Sapan Bhatia <sapanb@cs.princeton.edu>
Date: Thu, 29 Oct 2009 00:31:16 +0000
Subject: [PATCH] Adding tun/tap test module, for users to refer to.

---
 tun_test.c | 26 ++++++++++++++++++++++++++
 tunalloc.h |  6 ++++++
 2 files changed, 32 insertions(+)
 create mode 100644 tun_test.c
 create mode 100644 tunalloc.h

diff --git a/tun_test.c b/tun_test.c
new file mode 100644
index 0000000..947019f
--- /dev/null
+++ b/tun_test.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/if.h>
+#include <linux/if_tun.h>
+
+#include "tunalloc.h"
+
+int main(void)
+{
+    printf("Allocating tap device via VSYS\n");
+
+    char if_name[IFNAMSIZ];
+
+    int tun_fd = tun_alloc(IFF_TAP, if_name);
+
+    printf("Allocated tap device: %s fd=%d\n", if_name, tun_fd);
+
+    printf("Sleeping for 120 secs...\n");
+
+    sleep(120);
+
+    printf("Closing\n");
+
+    return 0;
+}
diff --git a/tunalloc.h b/tunalloc.h
new file mode 100644
index 0000000..3e5caae
--- /dev/null
+++ b/tunalloc.h
@@ -0,0 +1,6 @@
+#ifndef _TUNALLOC_H
+#define _TUNALLOC_H
+
+int tun_alloc(int iftype, char *if_name);
+
+#endif
-- 
2.43.0