updated logic for creating tunnel keys to use a consistent hashing method, since the builtin hash is not guaranteed in python3 as it was before in python2

daemon/core/utils.py

@@ -3,6 +3,7 @@ Miscellaneous utility functions, wrappers around some subprocess procedures.
 """
 
 import fcntl
+import hashlib
 import importlib
 import inspect
 import logging
@@ -17,6 +18,22 @@ from core import CoreCommandError
 DEVNULL = open(os.devnull, "wb")
 
 
+def hash(value):
+    """
+    Provide a consistent hash that can be used in place
+    of the builtin hash, that no longer behaves consistently
+    in python3.
+
+    :param str/int value: value to hash
+    :return: hash value
+    :rtype: int
+    """
+    if isinstance(value, int):
+        value = str(value)
+    value = value.encode("utf-8")
+    return int(hashlib.sha256(value).hexdigest(), 16)
+
+
 def _detach_init():
     """
     Fork a child process and exit.