From fe464025c110a22d3d578e904bd38f37a88b33c0 Mon Sep 17 00:00:00 2001
From: mlenders <mlenders@inf.fu-berlin.de>
Date: Wed, 22 Jun 2011 11:57:17 +0200
Subject: [PATCH] [sys/net/sixlowpan/sixlowip.h sys/net/sixlowpan/sixlowip.c] *
 added loopback address generation features

---
 sys/net/sixlowpan/sixlowip.c | 13 ++++++++++++-
 sys/net/sixlowpan/sixlowip.h |  6 ++++--
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/sys/net/sixlowpan/sixlowip.c b/sys/net/sixlowpan/sixlowip.c
index b00d2b8775..d725e2f4b7 100644
--- a/sys/net/sixlowpan/sixlowip.c
+++ b/sys/net/sixlowpan/sixlowip.c
@@ -65,7 +65,7 @@ void sixlowpan_send(ipv6_addr_t *addr, uint8_t *payload, uint16_t p_len){
 void ipv6_process(void){
     msg m;
     msg_init_queue(msg_queue, IP_PKT_RECV_BUF_SIZE);
-
+    
     while(1){
         msg_receive(&m);
 
@@ -208,6 +208,17 @@ void ipv6_set_all_nds_mcast_addr(ipv6_addr_t *ipaddr){
     ipaddr->uint16[7] = HTONS(0x0001);
 }
 
+void ipv6_set_lpback_addr(ipv6_addr_t *ipaddr){
+    ipaddr->uint16[0] = 0;
+    ipaddr->uint16[1] = 0;
+    ipaddr->uint16[2] = 0;
+    ipaddr->uint16[3] = 0;
+    ipaddr->uint16[4] = 0;
+    ipaddr->uint16[5] = 0;
+    ipaddr->uint16[6] = 0;
+    ipaddr->uint16[7] = HTONS(0x0001);
+}
+
 void ipv6_get_saddr(ipv6_addr_t *src, ipv6_addr_t *dst){
     /* try to find best match if dest is not mcast or link local */
     int8_t itmp = -1;
diff --git a/sys/net/sixlowpan/sixlowip.h b/sys/net/sixlowpan/sixlowip.h
index 8923e84387..9e285d7ddb 100644
--- a/sys/net/sixlowpan/sixlowip.h
+++ b/sys/net/sixlowpan/sixlowip.h
@@ -56,8 +56,9 @@ extern double start;
 #define ADDR_TYPE_MULTICAST         2
 #define ADDR_TYPE_ANYCAST           3
 #define ADDR_TYPE_SOL_NODE_MCAST    4
-#define ADDR_TYPE_LINK_LOCAL        5
-#define ADDR_TYPE_GLOBAL            6
+#define ADDR_TYPE_LOOPBACK          5
+#define ADDR_TYPE_LINK_LOCAL        6
+#define ADDR_TYPE_GLOBAL            7
 /* dispatch types */
 #define DISPATCH_TYPE_IPV6          0x41
 #define DISPATCH_TYPE_LOWPAN_HC1    0x42
@@ -138,6 +139,7 @@ uint8_t * get_payload_buf(uint8_t ext_len);
 void ipv6_set_ll_prefix(ipv6_addr_t *ipaddr);
 void ipv6_set_all_rtrs_mcast_addr(ipv6_addr_t *ipaddr);
 void ipv6_set_all_nds_mcast_addr(ipv6_addr_t *ipaddr);
+void ipv6_set_lpback_addr(ipv6_addr_t *ipaddr);
 void ipv6_set_sol_node_mcast_addr(ipv6_addr_t *addr_in, ipv6_addr_t *addr_out);
 void sixlowpan_bootstrapping(void);
 void sixlowpan_send(ipv6_addr_t *addr, uint8_t *payload, uint16_t p_len);