ce_static_route: fix some bugs. (ansible#58251)

* add a util function to ce.

* add a util function to ce.

* update to fix bugs for ce_static_route

* update to fix bugs for ce_static_route

* update to fix bugs for ce_static_route

* update

* update for shippable.

lib/ansible/modules/network/cloudengine/ce_static_route.py

@@ -274,10 +274,24 @@ def is_valid_v6addr(addr):
     """check if ipv6 addr is valid"""
     if addr.find(':') != -1:
         addr_list = addr.split(':')
-        if len(addr_list) > 6:
+        # The IPv6 binary system has a length of 128 bits and is grouped by 16 bits.
+        # Each group is separated by a colon ":" and can be divided into 8 groups, each group being represented by 4 hexadecimal
+        if len(addr_list) > 8:
             return False
-        if addr_list[1] != "":
+        # You can use a double colon "::" to represent a group of 0 or more consecutive 0s, but only once.
+        if addr.count('::') > 1:
             return False
+        # if do not use '::', the length of address should not be less than 8.
+        if addr.count('::') == 0 and len(addr_list) < 8:
+            return False
+        for group in addr_list:
+            if group.strip() == '':
+                continue
+            try:
+                # Each group is represented in 4-digit hexadecimal
+                int(group, base=16)
+            except ValueError:
+                return False
         return True
     return False
 
@@ -407,7 +421,7 @@ def convert_ip_prefix(self):
                 if int(each_num) > 255:
                     return False
             byte_len = 8
-            ip_len = int(self.mask) / byte_len
+            ip_len = int(self.mask) // byte_len
             ip_bit = int(self.mask) % byte_len
         else:
             if self.prefix.find(':') == -1:
@@ -422,7 +436,7 @@ def convert_ip_prefix(self):
             if length > 6:
                 return False
             byte_len = 16
-            ip_len = int(self.mask) / byte_len
+            ip_len = int(self.mask) // byte_len
             ip_bit = int(self.mask) % byte_len
 
         if self.aftype == "v4":
@@ -571,7 +585,7 @@ def get_static_route(self, state):
             replace('xmlns="http://www.huawei.com/netconf/vrp"', "")
         root = ElementTree.fromstring(xml_str)
         static_routes = root.findall(
-            "data/staticrt/staticrtbase/srRoutes/srRoute")
+            "staticrt/staticrtbase/srRoutes/srRoute")
 
         if static_routes:
             for static_route in static_routes:
@@ -763,6 +777,8 @@ def get_end_state(self):
 
         self.get_static_route(self.state)
         self.end_state['sroute'] = self.static_routes_info["sroute"]
+        if self.end_state == self.existing:
+            self.changed = False
 
     def work(self):
         """worker"""