From: Liu Sheng <liush...@cn.ibm.com>
When we perform the tap up operation, we should pass a 18Byte(16B for the name
and a 2B short int size for the flag 0x0001) ifreq struct to the ioctl
function. If we have a 4B int size flag instead, there is no problem on a x86
machine as it's little-endian arch, the first 2B is [01 00] coincidently the
same as we have a short int size flag. but on a big-endian arch like power. the
first 2B is [00 00], which is not correct for the operation. so just change the
flag size to 2B.
Signed-of-by: Liu Sheng <liush...@cn.ibm.com>
---
client/virt/virt_utils.py | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/client/virt/virt_utils.py b/client/virt/virt_utils.py
index b1543ac..ffc16ef 100644
--- a/client/virt/virt_utils.py
+++ b/client/virt/virt_utils.py
@@ -3351,7 +3351,7 @@ def bring_up_ifname(ifname):
@param ifname: Name of the interface
"""
ctrl_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, 0)
- ifr = struct.pack("16si", ifname, IFF_UP)
+ ifr = struct.pack("16sh", ifname, IFF_UP)
try:
fcntl.ioctl(ctrl_sock, SIOCSIFFLAGS, ifr)
except IOError:
--
1.7.4.1
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