Merge TinyOS 2.1.1 into master.

[tinyos-2.x.git] / support / sdk / c / blip / driver / tunnel.c

diff --git a/support/sdk/c/blip/driver/tunnel.c b/support/sdk/c/blip/driver/tunnel.c
new file mode 100644 (file)
index 0000000..6d6a64e
--- /dev/null
+++ b/support/sdk/c/blip/driver/tunnel.c
@@ -0,0 +1,70 @@
+/*
+ * "Copyright (c) 2008 The Regents of the University  of California.
+ * All rights reserved."
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
+ * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
+ *
+ */
+/*
+ * Implementation of user-mode driver and IP gateway using a node
+ * running IPBaseStation as 802.15.4 hardware.  Uses kernel tun
+ * interface to route addresses.
+ * 
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+uint16_t shortAddr;
+int tun_fd;
+char *tun_dev = "/dev/net/tun";
+
+void usage(char **args) {
+  fprintf(stderr, "\n\t%s <my-short-addr>\n\n", args[0]);
+}
+
+int create_tunnel() {
+  struct ifreq ifr;
+  if ((tun_fd = open(tun_dev, O_RDWR)) < 0) {
+    fprintf(stderr, "Failed to open '%s' : ", tun_dev);
+    perror("");
+    return 1;
+  }
+  ifr.irf_flags = IFF_TAP | IFF_NO_PI;
+  str
+
+  return 0;
+}
+
+int main(int argc, char **argv) {
+  if (argc != 2) {
+    usage(argv);
+    return 1;
+  }
+  shortAddr = atoi(argv[1]);
+
+  if (create_tunnel())
+    return 1;
+
+  sleep(20);
+
+  return 0;
+}