DHCPV6 client update

Address Get trig Address renew if it detect new Prefix than old allocated.

Address deprecate support added to dhcpv6 client.

Change-Id: I56b1e910ddf79c886fb9cac9e1c7626bff9d46bf

Author: Juha Heiskanen

source/DHCPv6_client/dhcpv6_client_service.c

@@ -182,12 +182,7 @@ int dhcp_solicit_resp_cb(uint16_t instance_id, void *ptr, uint8_t msg_name,  uin
 
         protocol_interface_info_entry_t *cur = protocol_stack_interface_info_get_by_id(dhcp_client.interface);
         if (cur) {
-            ns_list_foreach(if_address_entry_t, e, &cur->ip_addresses) {
-                if (memcmp(e->address, srv_data_ptr->iaNontemporalAddress.addressPrefix, 16) == 0) {
-                    tr_debug("Depreacate address %s", trace_ipv6(srv_data_ptr->iaNontemporalAddress.addressPrefix));
-                    addr_lifetime_update(cur, e, 0, 0, 30 * 60); //Accept max 30 min lifetime
-                }
-            }
+            addr_deprecate(cur, srv_data_ptr->iaNontemporalAddress.addressPrefix);
         }
     }
 
@@ -233,8 +228,11 @@ int dhcp_client_get_global_address(int8_t interface, uint8_t dhcp_addr[static 16
             //Already Created to same interface
             if (dhcp_client.one_instance_interface && prefix) {
                 if (srv_data_ptr->iaNonTemporalStructValid) {
-                    srv_data_ptr->iaNonTemporalStructValid = false;
-                    dhcpv6_renew(protocol_stack_interface_info_get_by_id(interface), NULL, ADDR_CALLBACK_TIMER);
+                    if (memcmp(srv_data_ptr->iaNontemporalAddress.addressPrefix, prefix, 8)) {
+                        //Request new address direct from Server if prefix is new
+                        srv_data_ptr->iaNonTemporalStructValid = false;
+                        dhcpv6_renew(protocol_stack_interface_info_get_by_id(interface), NULL, ADDR_CALLBACK_TIMER);
+                    }
                     return 0;
                 }
             }
@@ -325,9 +323,11 @@ void dhcp_client_global_address_delete(int8_t interface, uint8_t *dhcp_addr, uin
             return;
         }
         dhcp_service_req_remove(srv_data_ptr->transActionId);// remove all pending retransmissions
-        tr_debug("Deleting address: %s", trace_ipv6(srv_data_ptr->iaNontemporalAddress.addressPrefix));
-
-        addr_delete(cur, srv_data_ptr->iaNontemporalAddress.addressPrefix);
+        if (dhcp_client.one_instance_interface) {
+            addr_deprecate(cur, srv_data_ptr->iaNontemporalAddress.addressPrefix);
+        } else {
+            addr_delete(cur, srv_data_ptr->iaNontemporalAddress.addressPrefix);
+        }
 
         libdhcvp6_nontemporalAddress_server_data_free(srv_data_ptr);
         srv_data_ptr = libdhcpv6_nonTemporal_entry_get_by_prefix(interface, prefix);