- Handle the disapperance of net-tools

azurelinuxagent/common/osutil/default.py

@@ -985,7 +985,8 @@ def get_endpoint_from_leases_path(pathglob):
         return endpoint
 
     def is_missing_default_route(self):
-        routes = shellutil.run_get_output("route -n")[1]
+        route_cmd = "ip route show"
+        routes = shellutil.run_get_output(route_cmd)[1]
         for route in routes.split("\n"):
             if route.startswith("0.0.0.0 ") or route.startswith("default "):
                return False
@@ -1005,11 +1006,14 @@ def get_ip4_addr(self):
         return self.get_first_if()[1]
 
     def set_route_for_dhcp_broadcast(self, ifname):
-        return shellutil.run("route add 255.255.255.255 dev {0}".format(ifname),
+        route_cmd = "ip route add"
+        return shellutil.run("{0} 255.255.255.255 dev {1}".format(
+            route_cmd, ifname),
                              chk_err=False)
 
     def remove_route_for_dhcp_broadcast(self, ifname):
-        shellutil.run("route del 255.255.255.255 dev {0}".format(ifname),
+        route_cmd = "ip route del"
+        shellutil.run("{0} 255.255.255.255 dev {1}".format(route_cmd, ifname),
                       chk_err=False)
 
     def is_dhcp_available(self):
@@ -1044,10 +1048,9 @@ def restart_ssh_service(self):
 
     def route_add(self, net, mask, gateway):
         """
-        Add specified route using /sbin/route add -net.
+        Add specified route 
         """
-        cmd = ("/sbin/route add -net "
-               "{0} netmask {1} gw {2}").format(net, mask, gateway)
+        cmd = "ip route add {0} via {1}".format(net, gateway)
         return shellutil.run(cmd, chk_err=False)
 
     def get_dhcp_pid(self):

azurelinuxagent/common/utils/shellutil.py

@@ -57,6 +57,11 @@ def __str__(self):
 Shell command util functions
 """
 
+def has_command(cmd):
+    """
+    Return True if the given command is on the path
+    """
+    return not run(cmd, False)
 
 def run(cmd, chk_err=True):
     """