Merge TinyOS 2.1.1 into master.

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

diff --git a/support/sdk/c/blip/driver/routing.h b/support/sdk/c/blip/driver/routing.h
new file mode 100644 (file)
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--- /dev/null
+++ b/support/sdk/c/blip/driver/routing.h
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+/*
+ * "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."
+ *
+ */
+#ifndef __ROUTING_H_
+#define __ROUTING_H_
+
+#include <lib6lowpan/ip.h>
+#include <string.h>
+#include "nwstate.h"
+#include "config.h"
+
+enum {
+  ROUTE_NO_ROUTE,
+  ROUTE_ONEHOP,
+  ROUTE_MHOP,
+  ROUTE_SOURCE,
+  ROUTE_WORMHOLE,
+};
+
+// the maximum size of a set of topology entries we send out over the network
+#define ROUTMSGSIZ 1400
+
+enum {
+  RMSG_TOPOLOGY = 1,
+};
+
+struct routing_message {
+  uint16_t type;
+  uint16_t source;
+  char    data[0];
+};
+
+int routing_init(struct config *c, char *tun_dev);
+
+/* 
+ * handles for  the blocking loop
+ */
+int routing_add_fds(fd_set *fds);
+int routing_process(fd_set *fds);
+
+
+/*
+ * @returns: truth value indicating if the destination of the packet
+ * is a single hop, and requires no source route.
+ */
+int routing_is_onehop(struct split_ip_msg  *msg);
+
+
+/*
+ * Copys the IP message at orig to the empty one at ret, inserting
+ * necessary routing information.
+ */
+uint8_t routing_insert_route(struct split_ip_msg *orig);
+
+/*
+ * Returns the address of the next router this packet should be send to.
+ */
+ieee154_saddr_t routing_get_nexthop(struct split_ip_msg *msg);
+
+
+/*
+ * Called for all reconstructed packets off serial.
+ * allows the router to inpect and remove any extra headers in the message.
+ */
+int routing_add_report(node_id_t reporter, struct tlv_hdr *tlv);
+
+ 
+uint16_t routing_get_seqno();
+
+uint16_t routing_incr_seqno();
+
+#endif