When this function was recently changed to add in parsing of IFLA_VF_STATS, I noticed that the checks for existence of IFLA_VF_MAC and IFLA_VF_VLAN were looking in the *wrong array*. The array that contains the results of parsing each IFLA_VFINFO in tb[IFLA_VFINFO_LIST] is tb_vf, but we were checking for these in tb (which is the array containing the results of the toplevel parsing of the netlink message, *not* the results of parsing one of the nested IFLA_VFINFO's. This incorrect code has been here since the function was originally written in 2012. It has only worked all these years due to coincidence - the items at those indexes in tb are IFLA_ADDRESS and IFLA_BROADCAST (of the *PF*, not of any of its VFs), and those happen to always be present in the toplevel netlink message; since we are only looking in the incorrect place to check for mere existence of the attribute (but are doing the actual retrieval of the attribute from the correct place), this bug has no real consequences other than confusing anyone trying to understand the code. Signed-off-by: Laine Stump <laine@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Libvirt API for virtualization
Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser
General Public License, version 2.1 (or later). Some parts of the code
that are not part of the C library may have the more restrictive GNU
General Public License, version 2.0 (or later). See the files
COPYING.LESSER
and COPYING
for full license
terms & conditions.
Installation
Instructions on building and installing libvirt can be found on the website:
https://libvirt.org/compiling.html
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: