Address generation changed to slaac based generation (ARMmbed#1708)

Author: deepakvenugopal

source/6LoWPAN/Thread/thread_extension.c

@@ -53,6 +53,7 @@
 #include "6LoWPAN/Thread/thread_extension_bootstrap.h"
 #include "6LoWPAN/Thread/thread_extension_constants.h"
 #include "6LoWPAN/MAC/mac_helper.h"
+#include "Common_Protocols/icmpv6.h"
 #include "NWK_INTERFACE/Include/protocol.h"
 #include "Common_Protocols/ipv6.h"
 
@@ -436,16 +437,15 @@ void thread_extension_address_generate(protocol_interface_info_entry_t *cur)
     if (thread_extension_network_prefix_get(cur->id, &options, domain_address, &domain_prefix_len)) {
         return;
     }
-    if(domain_prefix_len != 64 || !(options & 0x80)) {
+    if (!(options & 0x80)) {
         tr_debug("domain prefix does not allow SLAAC address, prefix %s options:%u",trace_ipv6_prefix(domain_address,domain_prefix_len),options);
         return;
     }
 
-    //GENERATE ML-EID64
-    memcpy(&domain_address[8], cur->iid_slaac , 8);
-    def_address = addr_add(cur, domain_address, 64, ADDR_SOURCE_THREAD_DOMAIN, 0xffffffff, 0xffffffff, true);
+    def_address = icmpv6_slaac_address_add(cur, domain_address, domain_prefix_len, 0xffffffff, 0xffffffff, true, SLAAC_IID_DEFAULT);
     if (def_address) {
-        tr_info("Generated domain address 64: %s", trace_ipv6(domain_address));
+        tr_info("Generated domain address 64: %s", trace_ipv6(def_address->address));
+        def_address->source = ADDR_SOURCE_THREAD_DOMAIN;
     } else {
         tr_error("Domain address creation failed");
     }