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Laine Stump
219305df44
Change default for storage uid/gid from getuid()/getgid() to -1/-1
This allows the config to have a setting that means "leave it alone", eg when building a pool where the directory already exists the user may want the current uid/gid of the directory left intact. This actually gets us back to older behavior - before recent changes to the pool building code, we weren't as insistent about honoring the uid/gid settings in the XML, and virt-manager was taking advantage of this behavior. As a side benefit, removing calls to getuid/getgid from the XML parsing functions also seems like a good idea. And having a default that is different from a common/useful value (0 == root) is a good thing in general, as it removes ambiguity from decisions (at least one place in the code was checking for (perms.uid == 0) to see if a special uid was requested). Note that this will only affect newly created pools and volumes. Due to the way that the XML is parsed, then formatted for newly created volumes, all existing pools/volumes already have an explicit uid and gid set. src/conf/storage_conf.c: Remove calls to setuid/setgid for default values of uid/gid, and set them to -1 instead src/storage/storage_backend.c: src/storage/storage_backend_fs.c: Make account for the new default values of perms.uid and perms.gid.
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
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.
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