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security_dac: Label host side of NVDIMM

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When domain is being started up, we ought to relabel the host
side of NVDIMM so qemu has access to it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Michal Privoznik 2016-08-04 12:01:38 +02:00
parent e433546bef
commit ea416faf74
1 changed files with 73 additions and 0 deletions
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73
src/security/security_dac.c
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@ -1386,6 +1386,30 @@ virSecurityDACRestoreInputLabel(virSecurityManagerPtr mgr,
}
static int
virSecurityDACRestoreMemoryLabel(virSecurityManagerPtr mgr,
virDomainDefPtr def ATTRIBUTE_UNUSED,
virDomainMemoryDefPtr mem)
{
virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
int ret = -1;
switch ((virDomainMemoryModel) mem->model) {
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
ret = virSecurityDACRestoreFileLabel(priv, mem->nvdimmPath);
break;
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
ret = 0;
break;
}
return ret;
}
static int
virSecurityDACRestoreAllLabel(virSecurityManagerPtr mgr,
virDomainDefPtr def,
@ -1425,6 +1449,13 @@ virSecurityDACRestoreAllLabel(virSecurityManagerPtr mgr,
rc = -1;
}
for (i = 0; i < def->nmems; i++) {
if (virSecurityDACRestoreMemoryLabel(mgr,
def,
def->mems[i]) < 0)
rc = -1;
}
if (virDomainChrDefForeach(def,
false,
virSecurityDACRestoreChardevCallback,
@ -1457,6 +1488,41 @@ virSecurityDACSetChardevCallback(virDomainDefPtr def,
}
static int
virSecurityDACSetMemoryLabel(virSecurityManagerPtr mgr,
virDomainDefPtr def,
virDomainMemoryDefPtr mem)
{
virSecurityDACDataPtr priv = virSecurityManagerGetPrivateData(mgr);
virSecurityLabelDefPtr seclabel;
int ret = -1;
uid_t user;
gid_t group;
switch ((virDomainMemoryModel) mem->model) {
case VIR_DOMAIN_MEMORY_MODEL_NVDIMM:
seclabel = virDomainDefGetSecurityLabelDef(def, SECURITY_DAC_NAME);
if (seclabel && !seclabel->relabel)
return 0;
if (virSecurityDACGetIds(seclabel, priv, &user, &group, NULL, NULL) < 0)
return -1;
ret = virSecurityDACSetOwnership(priv, NULL, mem->nvdimmPath, user, group);
break;
case VIR_DOMAIN_MEMORY_MODEL_DIMM:
case VIR_DOMAIN_MEMORY_MODEL_LAST:
case VIR_DOMAIN_MEMORY_MODEL_NONE:
ret = 0;
break;
}
return ret;
}
static int
virSecurityDACSetAllLabel(virSecurityManagerPtr mgr,
virDomainDefPtr def,
@ -1496,6 +1562,13 @@ virSecurityDACSetAllLabel(virSecurityManagerPtr mgr,
return -1;
}
for (i = 0; i < def->nmems; i++) {
if (virSecurityDACSetMemoryLabel(mgr,
def,
def->mems[i]) < 0)
return -1;
}
if (virDomainChrDefForeach(def,
true,
virSecurityDACSetChardevCallback,