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qemu: Use -1 as unpriviledged uid/gid

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Commit f506a4c1 changed virSetUIDGID() to be a noop
when uid/gid are -1, while it used to be a noop when
they are <= 0.

The changes in this commit broke creating new VMs in GNOME Boxes
as qemuDomainCheckDiskPresence gets called during domain creation/startup,
which in turn calls virFileAccessibleAs which fails after calling
virSetUIDGID(0, 0) (Boxes uses session libvirtd). virSetUIDGID is called with
(0, 0) as these are the default user/group values in virQEMUDriverConfig
for session libvirtd.

This commit changes virQEMUDriverConfigNew to use -1 as the unpriviledged
uid/gid. I've also looked at the various places where cfg->user is used,
and they all seem to handle -1 correctly.
This commit is contained in:
Christophe Fergeau 2013-03-02 15:19:47 +01:00
parent c7e85db61b
commit aff6942c23
1 changed files with 2 additions and 2 deletions
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4
src/qemu/qemu_conf.c
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@ -129,8 +129,8 @@ virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
if (virGetGroupID(QEMU_GROUP, &cfg->group) < 0)
goto error;
} else {
cfg->user = 0;
cfg->group = 0;
cfg->user = (uid_t)-1;
cfg->group = (gid_t)-1;
}
cfg->dynamicOwnership = privileged;