[Kimchi-devel] [PATCH 1/4] PowerKVM: Workaround of numpy byte order bug on PowerPC

[Paulo Vital]

A numpy byte order bug cause the novnc handshake failure. To workaround
this problem, we swap bytes after unmasking. After it's fixed on the
numpy side,  we can drop this patch.

Signed-off-by: Mark Wu <wudxw at linux.vnet.ibm.com>
Signed-off-by: Paulo Vital <pvital at linux.vnet.ibm.com>
---
 src/kimchi/websocket.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/kimchi/websocket.py b/src/kimchi/websocket.py
index a98fc6d..870c453 100644
--- a/src/kimchi/websocket.py
+++ b/src/kimchi/websocket.py
@@ -16,7 +16,7 @@ as taken from http://docs.python.org/dev/library/ssl.html#certificates
 
 '''
 
-import os, sys, time, errno, signal, socket, traceback, select
+import os, sys, time, errno, signal, socket, traceback, select, platform
 import array, struct
 from base64 import b64encode, b64decode
 
@@ -251,7 +251,10 @@ Sec-WebSocket-Accept: %s\r
                 data = numpy.frombuffer(buf, dtype=numpy.dtype('<u4'),
                         offset=pstart, count=int(plen / 4))
                 #b = numpy.bitwise_xor(data, mask).data
-                b = numpy.bitwise_xor(data, mask).tostring()
+                if platform.machine().startswith('ppc'):
+                    b = numpy.bitwise_xor(data, mask).byteswap().tostring()
+                else:
+                    b = numpy.bitwise_xor(data, mask).tostring()
 
             if plen % 4:
                 #print("Partial unmask")
-- 
1.9.3