From 3e987ec138f1892af4c7565c9ac8963e831e4f0c Mon Sep 17 00:00:00 2001
From: Simon Duquennoy <simon.duquennoy@inria.fr>
Date: Wed, 29 Jun 2016 16:51:38 +0200
Subject: [PATCH] Border router: include RPL links in HTTP reply when
 non-storing mode is enabled

---
 .../ipv6/rpl-border-router/border-router.c    | 69 ++++++++++++++++++-
 1 file changed, 67 insertions(+), 2 deletions(-)

diff --git a/examples/ipv6/rpl-border-router/border-router.c b/examples/ipv6/rpl-border-router/border-router.c
index 84943e68f..90b1fdf23 100644
--- a/examples/ipv6/rpl-border-router/border-router.c
+++ b/examples/ipv6/rpl-border-router/border-router.c
@@ -41,7 +41,10 @@
 #include "net/ip/uip.h"
 #include "net/ipv6/uip-ds6.h"
 #include "net/rpl/rpl.h"
-
+#include "net/rpl/rpl-private.h"
+#if RPL_WITH_NON_STORING
+#include "net/rpl/rpl-ns.h"
+#endif /* RPL_WITH_NON_STORING */
 #include "net/netstack.h"
 #include "dev/button-sensor.h"
 #include "dev/slip.h"
@@ -144,6 +147,9 @@ static
 PT_THREAD(generate_routes(struct httpd_state *s))
 {
   static uip_ds6_route_t *r;
+#if RPL_WITH_NON_STORING
+  static rpl_ns_node_t *link;
+#endif /* RPL_WITH_NON_STORING */
   static uip_ds6_nbr_t *nbr;
 #if BUF_USES_STACK
   char buf[256];
@@ -210,7 +216,7 @@ PT_THREAD(generate_routes(struct httpd_state *s))
       }
 #endif
   }
-  ADD("</pre>Routes<pre>");
+  ADD("</pre>Routes<pre>\n");
   SEND_STRING(&s->sout, buf);
 #if BUF_USES_STACK
   bufptr = buf; bufend = bufptr + sizeof(buf);
@@ -259,6 +265,65 @@ PT_THREAD(generate_routes(struct httpd_state *s))
   }
   ADD("</pre>");
 
+#if RPL_WITH_NON_STORING
+  ADD("Links<pre>\n");
+  SEND_STRING(&s->sout, buf);
+#if BUF_USES_STACK
+  bufptr = buf; bufend = bufptr + sizeof(buf);
+#else
+  blen = 0;
+#endif
+  for(link = rpl_ns_node_head(); link != NULL; link = rpl_ns_node_next(link)) {
+    if(link->parent != NULL) {
+      uip_ipaddr_t child_ipaddr;
+      uip_ipaddr_t parent_ipaddr;
+
+      rpl_ns_get_node_global_addr(&child_ipaddr, link);
+      rpl_ns_get_node_global_addr(&parent_ipaddr, link->parent);
+
+#if BUF_USES_STACK
+#if WEBSERVER_CONF_ROUTE_LINKS
+      ADD("<a href=http://[");
+      ipaddr_add(&child_ipaddr);
+      ADD("]/status.shtml>");
+      ipaddr_add(&child_ipaddr);
+      ADD("</a>");
+#else
+      ipaddr_add(&child_ipaddr);
+#endif
+#else
+#if WEBSERVER_CONF_ROUTE_LINKS
+      ADD("<a href=http://[");
+      ipaddr_add(&child_ipaddr);
+      ADD("]/status.shtml>");
+      SEND_STRING(&s->sout, buf); //TODO: why tunslip6 needs an output here, wpcapslip does not
+      blen = 0;
+      ipaddr_add(&child_ipaddr);
+      ADD("</a>");
+#else
+      ipaddr_add(&child_ipaddr);
+#endif
+#endif
+
+      ADD(" (parent: ");
+      ipaddr_add(&parent_ipaddr);
+      if(1 || (link->lifetime < 600)) {
+        ADD(") %us\n", (unsigned int)link->lifetime); // iotlab printf does not have %lu
+        //ADD(") %lus\n", (unsigned long)r->state.lifetime);
+      } else {
+        ADD(")\n");
+      }
+      SEND_STRING(&s->sout, buf);
+#if BUF_USES_STACK
+      bufptr = buf; bufend = bufptr + sizeof(buf);
+#else
+      blen = 0;
+#endif
+    }
+  }
+  ADD("</pre>");
+#endif /* RPL_WITH_NON_STORING */
+
 #if WEBSERVER_CONF_FILESTATS
   static uint16_t numtimes;
   ADD("<br><i>This page sent %u times</i>",++numtimes);