Red Hat Bugzilla – Bug 770971
Expose 'virDomain{Get,Set}InterfaceParameters' APIs in python binding
Last modified: 2012-06-20 02:40:49 EDT
Description of problem: Expose 'virDomain{Get,Set}InterfaceParameters' API in python binding. Version-Release number of selected component (if applicable): # rpm -q libvirt libvirt-0.9.9-0rc1.el6.x86_64 How reproducible: always Steps to Reproduce: Run the following codes in interactive python: import libvirt con = libvirt.open(None) dom = con.lookupByName('foo') dom.interfaceParameters('vnet0', None, None, 0) dom.setInterfaceParameters('vnet0', None, None, 0) Actual results: Traceback (most recent call last): File "test.py", line 4, in <module> print dom.interfaceParameters('vnet0', None, None, 0) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 635, in interfaceParameters ret = libvirtmod.virDomainGetInterfaceParameters(self._o, device, params, nparams, flags) AttributeError: 'module' object has no attribute 'virDomainGetInterfaceParameters' Traceback (most recent call last): File "test.py", line 5, in <module> print dom.setInterfaceParameters('vnet0', None, None, 0) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1140, in setInterfaceParameters ret = libvirtmod.virDomainSetInterfaceParameters(self._o, device, params, nparams, flags) AttributeError: 'module' object has no attribute 'virDomainSetInterfaceParameters' Expected results: Expose them. Additional info: # nm -a -D /usr/lib64/python2.6/site-packages/libvirtmod. so|grep virDomainGetInterfaceParameters # nm -a -D /usr/lib64/python2.6/site-packages/libvirtmod. so|grep virDomainSetInterfaceParameters
Patch for upstream: https://www.redhat.com/archives/libvir-list/2012-January/msg00695.html
*** Bug 771015 has been marked as a duplicate of this bug. ***
In POST: commit 8b29c4598609d9b22a39e6f6bf3bf7afe8303faa Author: Alex Jia <ajia@redhat.com> Date: Tue Feb 14 10:46:23 2012 +0800 python: Expose virDomain{G,S}etInterfaceParameters APIs in python binding The v4 patch corrects indentation issues. The v3 patch follows latest python binding codes and change 'size' type from int to Py_ssize_t. An simple example to show how to use it: #!/usr/bin/env python import libvirt conn = libvirt.open(None) dom = conn.lookupByName('foo') print dom.interfaceParameters('vnet0', 0) params = {'outbound.peak': 10, 'inbound.peak': 10, 'inbound.burst': 20, 'inbound.average': 20, 'outbound.average': 30, 'outbound.burst': 30} print dom.setInterfaceParameters('vnet0', params, 0) print dom.interfaceParameters('vnet0', 0) Signed-off-by: Alex Jia <ajia@redhat.com>
# rpm -q libvirt libvirt-python libvirt-0.9.10-2.el6.x86_64 libvirt-python-0.9.10-2.el6.x86_64 1. prepare a running domain # virsh start dom_test 2. check with python # python Python 2.6.6 (r266:84292, Sep 12 2011, 14:03:14) [GCC 4.4.5 20110214 (Red Hat 4.4.5-6)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import libvirt >>> conn = libvirt.open(None) >>> domobj = conn.lookupByName("dom_test") >>> domobj.interfaceParameters("vnet0", 0) {'outbound.peak': 0, 'inbound.peak': 0, 'inbound.burst': 0, 'inbound.average': 0, 'outbound.average': 0, 'outbound.burst': 0} >>> domobj.interfaceParameters("vnet0", 1) {'outbound.peak': 0, 'inbound.peak': 0, 'inbound.burst': 0, 'inbound.average': 0, 'outbound.average': 0, 'outbound.burst': 0} >>> params = {'outbound.peak': 40, 'inbound.peak': 40, 'inbound.burst': 20, 'inbound.average': 20, 'outbound.average': 30, 'outbound.burst': 30} >>> domobj.setInterfaceParameters("vnet0", params, 0) 0 >>> domobj.interfaceParameters("vnet0", 1) {'outbound.peak': 40, 'inbound.peak': 40, 'inbound.burst': 20, 'inbound.average': 20, 'outbound.average': 30, 'outbound.burst': 30} >>> domobj.interfaceParameters("vnet0", 0) {'outbound.peak': 40, 'inbound.peak': 40, 'inbound.burst': 20, 'inbound.average': 20, 'outbound.average': 30, 'outbound.burst': 30} >>> domobj.setInterfaceParameters("54:52:00:98:92:8d", params, 2) 0 destroy domian in another console # virsh destroy dom_test recheck with python >>> domobj.interfaceParameters("54:52:00:98:92:8d", 2) {'outbound.peak': 40, 'inbound.peak': 40, 'inbound.burst': 20, 'inbound.average': 20, 'outbound.average': 30, 'outbound.burst': 30} >>> domobj.interfaceParameters("54:52:00:98:92:8d", 0) {'outbound.peak': 40, 'inbound.peak': 40, 'inbound.burst': 20, 'inbound.average': 20, 'outbound.average': 30, 'outbound.burst': 30} >>> so, this is fixed.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHSA-2012-0748.html