Fix error Deleting network interface

src/aleph/vm/network/interfaces.py

@@ -61,18 +61,18 @@
         logger.error(f"Unknown exception while adding address {ip} to interface {device_name}: {e}")
 
 
-def delete_ip_address(ipr: IPRoute, device_name: str, ip: IPv4Interface | IPv6Interface):
+def delete_ip_address(ipr: IPRoute, device_name: str, ip: str, mask: int):
     """Delete an IP address to the given interface."""
     interface_index: list[int] = ipr.link_lookup(ifname=device_name)
     if not interface_index:
         msg = f"Interface {device_name} does not exist, can't delete address {ip} to it."
         raise MissingInterfaceError(msg)
     try:
-        ipr.addr("del", index=interface_index[0], address=str(ip.ip), mask=ip.network.prefixlen)
+        ipr.addr("del", index=interface_index[0], address=ip, mask=mask)
     except NetlinkError as e:
-        logger.exception(f"Unknown exception while deleting address {ip} to interface {device_name}: {e}")
+        logger.exception(f"Unknown exception while deleting address {ip}/{mask} to interface {device_name}: {e}")
     except OSError as e:
-        logger.exception(f"Unknown exception while deleting address {ip} to interface {device_name}: {e}")
+        logger.exception(f"Unknown exception while deleting address {ip}/{mask} to interface {device_name}: {e}")
 
 
 def set_link_up(ipr: IPRoute, device_name: str):
@@ -170,6 +170,11 @@
         if self.ndp_proxy:
             await self.ndp_proxy.delete_range(self.device_name)
         with IPRoute() as ipr:
-            delete_ip_address(ipr, self.device_name, self.host_ip)
-            delete_ip_address(ipr, self.device_name, self.host_ipv6)
+            interface_index: list[int] = ipr.link_lookup(ifname=self.device_name)
+            for addr in ipr.get_addr(index=interface_index):
+                # The order of attributes in the attrs field comes from the Netlink protocol
+                attrs = dict(addr["attrs"])
+                ip_addr: str = attrs["IFA_ADDRESS"]
+                mask: int = addr["prefixlen"]
+                delete_ip_address(ipr, self.device_name, ip_addr, mask)
             delete_tap_interface(ipr, self.device_name)