added very basic rpl-border router example

examples/ipv6/rpl-border-router/Makefile

@@ -0,0 +1,11 @@
+all: border-router
+
+CONTIKI=../../..
+
+WITH_UIP6=1
+UIP_CONF_IPV6=1
+
+CFLAGS += -DUIP_FALLBACK_INTERFACE=rpl_interface
+PROJECT_SOURCEFILES += slip-bridge.c
+
+include $(CONTIKI)/Makefile.include

examples/ipv6/rpl-border-router/border-router.c

@@ -0,0 +1,119 @@
+/*
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * This file is part of the Contiki operating system.
+ *
+ */
+/**
+ * \file
+ *         border-router
+ * \author
+ *         Niclas Finne <nfi@sics.se>
+ *         Joakim Eriksson <joakime@sics.se>
+ *         Nicolas Tsiftes <nvt@sics.se>
+ */
+
+#include "contiki.h"
+#include "contiki-lib.h"
+#include "contiki-net.h"
+#include "net/uip.h"
+#include "net/rpl/rpl.h"
+
+#include "net/netstack.h"
+#include "dev/button-sensor.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#define DEBUG DEBUG_PRINT
+#include "net/uip-debug.h"
+
+uint16_t dag_id[] = {0x1111, 0x1100, 0, 0, 0, 0, 0, 0x0011};
+
+PROCESS(border_router_process, "Border router process");
+AUTOSTART_PROCESSES(&border_router_process);
+/*---------------------------------------------------------------------------*/
+static void
+print_local_addresses(void)
+{
+  int i;
+  uint8_t state;
+
+  PRINTF("Server IPv6 addresses: ");
+  for(i = 0; i < UIP_DS6_ADDR_NB; i++) {
+    state = uip_ds6_if.addr_list[i].state;
+    if(state == ADDR_TENTATIVE || state == ADDR_PREFERRED) {
+      PRINT6ADDR(&uip_ds6_if.addr_list[i].ipaddr);
+      PRINTF("\n");
+      /* hack to make address "final" */
+      if (state == ADDR_TENTATIVE) {
+        uip_ds6_if.addr_list[i].state = ADDR_PREFERRED;
+      }
+    }
+  }
+}
+/*---------------------------------------------------------------------------*/
+PROCESS_THREAD(border_router_process, ev, data)
+{
+  uip_ipaddr_t ipaddr;
+  struct uip_ds6_addr *root_if;
+
+  PROCESS_BEGIN();
+
+  PROCESS_PAUSE();
+
+  SENSORS_ACTIVATE(button_sensor);
+
+  PRINTF("RPL-Border router started\n");
+
+  uip_ip6addr(&ipaddr, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
+  uip_ds6_set_addr_iid(&ipaddr, &uip_lladdr);
+  uip_ds6_addr_add(&ipaddr, 0, ADDR_AUTOCONF);
+  root_if = uip_ds6_addr_lookup(&ipaddr);
+  if(root_if != NULL) {
+    rpl_set_root((uip_ip6addr_t *)dag_id);
+    PRINTF("created a new RPL dag\n");
+  } else {
+    PRINTF("failed to create a new RPL DAG\n");
+  }
+
+  print_local_addresses();
+
+  /* The border router runs with a 100% duty cycle in order to ensure high
+     packet reception rates. */
+  NETSTACK_MAC.off(1);
+
+  while(1) {
+    PROCESS_YIELD();
+    if (ev == sensors_event && data == &button_sensor) {
+      PRINTF("Initiaing global repair\n");
+      rpl_repair_dag(rpl_get_dag(RPL_ANY_INSTANCE));
+    }
+  }
+
+  PROCESS_END();
+}
+/*---------------------------------------------------------------------------*/

examples/ipv6/rpl-border-router/slip-bridge.c

@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2010, Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: slip-bridge.c,v 1.1 2010/05/05 19:44:30 joxe Exp $
+ */
+
+/**
+ * \file
+ *         Slip fallback interface
+ * \author
+ *         Niclas Finne <nfi@sics.se>
+ *         Joakim Eriksson <joakime@sics.se>
+ *         Joel Hoglund <joel@sics.se>
+ *         Nicolas Tsiftes <nvt@sics.se>
+ */
+
+#include "net/uip.h"
+#include "net/uip-ds6.h"
+#include "rpl.h"
+#include "dev/slip.h"
+#include "dev/uart1.h"
+
+#define UIP_IP_BUF        ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN])
+
+#define DEBUG DEBUG_PRINT
+#include "net/uip-debug.h"
+
+static uip_ipaddr_t last_sender;
+/*---------------------------------------------------------------------------*/
+static void
+slip_input_callback(void)
+{
+  PRINTF("SIN: %u\n", uip_len);
+
+  /* Save the last sender received over SLIP to avoid bouncing the
+     packet back if no route is found */
+  uip_ipaddr_copy(&last_sender, &UIP_IP_BUF->srcipaddr);
+}
+/*---------------------------------------------------------------------------*/
+static void
+init(void)
+{
+  slip_arch_init(BAUD2UBR(115200));
+  process_start(&slip_process, NULL);
+  slip_set_input_callback(slip_input_callback);
+}
+/*---------------------------------------------------------------------------*/
+static void
+output(void)
+{
+  if(uip_ipaddr_cmp(&last_sender, &UIP_IP_BUF->srcipaddr)) {
+    /* Do not bounce packets back over SLIP if the packet was received
+       over SLIP */
+    PRINTF("slip-bridge: Destination off-link but no route\n");
+  } else {
+    PRINTF("SUT: %u\n", uip_len);
+    slip_send();
+  }
+}
+/*---------------------------------------------------------------------------*/
+int
+putchar(int c)
+{
+#define SLIP_END     0300
+  static char debug_frame = 0;
+
+  if(!debug_frame) {            /* Start of debug output */
+    slip_arch_writeb(SLIP_END);
+    slip_arch_writeb('\r');     /* Type debug line == '\r' */
+    debug_frame = 1;
+  }
+
+  /* Need to also print '\n' because for example COOJA will not show
+     any output before line end */
+  slip_arch_writeb((char)c);
+
+  /*
+   * Line buffered output, a newline marks the end of debug output and
+   * implicitly flushes debug output.
+   */
+  if(c == '\n') {
+    slip_arch_writeb(SLIP_END);
+    debug_frame = 0;
+  }
+  return c;
+}
+/*---------------------------------------------------------------------------*/
+const struct uip_fallback_interface rpl_interface = {
+  init, output
+};
+/*---------------------------------------------------------------------------*/