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security: Skip labeling resources when seclabel defaults to none

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If a domain is explicitly configured with <seclabel type="none"/> we
correctly ensure that no labeling will be done by setting
norelabel=true. However, if no seclabel element is present in domain XML
and hypervisor is configured not to confine domains by default, we only
set type to "none" without turning off relabeling. Thus if such a domain
is being started, security driver wants to relabel resources with
default label, which doesn't make any sense.

Moreover, with SELinux security driver, the generated image label lacks
"s0" sensitivity, which causes setfilecon() fail with EINVAL in
enforcing mode.
(cherry picked from commit ce53382ba2)
This commit is contained in:
Jiri Denemark 2012-07-25 14:38:27 +02:00 committed by Cole Robinson
parent b9964013c3
commit 3883ef0360
1 changed files with 4 additions and 2 deletions
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6
src/security/security_manager.c
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@ -296,10 +296,12 @@ int virSecurityManagerGenLabel(virSecurityManagerPtr mgr,
virDomainDefPtr vm)
{
if (vm->seclabel.type == VIR_DOMAIN_SECLABEL_DEFAULT) {
if (mgr->defaultConfined)
if (mgr->defaultConfined) {
vm->seclabel.type = VIR_DOMAIN_SECLABEL_DYNAMIC;
else
} else {
vm->seclabel.type = VIR_DOMAIN_SECLABEL_NONE;
vm->seclabel.norelabel = true;
}
}
if ((vm->seclabel.type == VIR_DOMAIN_SECLABEL_NONE) &&