NetTest - Compiles, doesn't yet do much

[tpg/acess2.git] / Tools / NetTest / tap.c

diff --git a/Tools/NetTest/tap.c b/Tools/NetTest/tap.c
index e69de29..ebacf16 100644 (file)
--- a/Tools/NetTest/tap.c
+++ b/Tools/NetTest/tap.c
@@ -0,0 +1,60 @@
+/*
+ * Acess2 Networking Test Suite (NetTest)
+ * - By John Hodge (thePowersGang)
+ *
+ * tap.c
+ * - TAP Network driver
+ */
+#include <nettest.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+//#include <linux/if.h>
+#include <linux/if_tun.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+
+// === CODE ===
+void *NetTest_OpenTap(const char *Name)
+{
+        int    rv;
+
+       struct ifreq    ifr;
+       memset(&ifr, 0, sizeof(ifr));
+       ifr.ifr_flags = IFF_TAP|IFF_NO_PI;
+       
+       if( Name[0] != '\0' )
+       {
+               if( strlen(Name) > IFNAMSIZ )
+                       return NULL;
+               strncpy(ifr.ifr_name, Name, IFNAMSIZ);
+       }
+       
+        int    fd = open("/dev/net/tun", O_RDWR);
+       if( fd < 0 )
+       {
+               perror("NetTest_OpenTap - open");
+               return NULL;
+       }
+       
+       if( (rv = ioctl(fd, TUNSETIFF, &ifr)) )
+       {
+               perror("NetTest_OpenTap - ioctl(TUNSETIFF)");
+               fprintf(stderr, "Opening TUN/TAP device '%s'\n", Name);
+               close(fd);
+               return NULL;
+       }
+
+       return (void*)(intptr_t)fd;
+}
+
+size_t NetTest_WritePacket(void *Handle, size_t Size, const void *Data)
+{
+       return write( (intptr_t)Handle, Data, Size);
+}
+
+size_t NetTest_ReadPacket(void *Handle, size_t MaxSize, void *Data)
+{
+       return read( (intptr_t)Handle, Data, MaxSize);
+}