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security: Driver 'none' cannot create confined guests

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In case the caller specifies that confined guests are required but the
security driver turns out to be 'none', we should return an error since
this driver clearly cannot meet that requirement.  As a result of this
error, libvirtd fails to start when the host admin explicitly sets
confined guests are required but there is no security driver available.

Since security driver 'none' cannot create confined guests, we override
default confined setting so that hypervisor drivers do not thing they
should create confined guests.
This commit is contained in:
Jiri Denemark 2012-02-07 19:54:59 +01:00
parent f6957617c5
commit afb96301f3
2 changed files with 21 additions and 1 deletions
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20
src/security/security_manager.c
View File

@ -115,6 +115,26 @@ virSecurityManagerPtr virSecurityManagerNew(const char *name,
if (!drv)
return NULL;
/* driver "none" needs some special handling of *Confined bools */
if (STREQ(drv->name, "none")) {
if (requireConfined) {
virSecurityReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Security driver \"none\" cannot create confined guests"));
return NULL;
}
if (defaultConfined) {
if (name != NULL) {
VIR_WARN("Configured security driver \"none\" disables default"
" policy to create confined guests");
} else {
VIR_DEBUG("Auto-probed security driver is \"none\";"
" confined guests will not be created");
}
defaultConfined = false;
}
}
return virSecurityManagerNewDriver(drv,
allowDiskFormatProbing,
defaultConfined,

2
tests/seclabeltest.c
View File

@ -13,7 +13,7 @@ main (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED)
virSecurityManagerPtr mgr;
const char *doi, *model;
mgr = virSecurityManagerNew(NULL, false, true, true);
mgr = virSecurityManagerNew(NULL, false, true, false);
if (mgr == NULL) {
fprintf (stderr, "Failed to start security driver");
exit (-1);