From b00845f42b8a899b2d342cbd388c8553d44860a9 Mon Sep 17 00:00:00 2001
From: cubarco <marco.l.here@gmail.com>
Date: Wed, 8 Nov 2017 16:10:32 +0800
Subject: [PATCH] Fix Dot11WEP icv in Python2

The method crc32 may return nagative value in python2, made it unsigned.
---
 scapy/layers/dot11.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scapy/layers/dot11.py b/scapy/layers/dot11.py
index 32dc1cf88..fcbee7a39 100644
--- a/scapy/layers/dot11.py
+++ b/scapy/layers/dot11.py
@@ -313,7 +313,7 @@ class Dot11WEP(Packet):
             key = conf.wepkey
         if key:
             if self.icv is None:
-                pay += struct.pack("<I", crc32(pay))
+                pay += struct.pack("<I", crc32(pay) & 0xffffffff)
                 icv = b""
             else:
                 icv = p[4:8]