Add padding on packed attributes.

2015-01-10 06:53:25 +00:00
parent eed19490e9
commit f88c78de06
1 changed files with 6 additions and 1 deletions
--- a/nl80211.py
+++ b/nl80211.py
@@ -127,9 +127,14 @@ class Attribute(object):
    sub_parser = self._attributes[attrtype][1]
    sub_accumulator = Accumulator()
    sub_parser.Pack(sub_accumulator, value)
-    self._nlattr.Pack(accumulator, len=self._nlattr.size + len(sub_accumulator), type=attrtype)
+    attrlen = self._nlattr.size + len(sub_accumulator)
+    self._nlattr.Pack(accumulator, len=attrlen, type=attrtype)
    accumulator.Append(str(sub_accumulator))

+    padding = ((attrlen + 4 - 1) & ~3) - attrlen
+    if padding:
+      accumulator.Append('\0' * padding)
+

 class Attributes(object):
  def __init__(self, attributes):