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vircgroup: extract virCgroupV1(Allow|Deny)AllDevices

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Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2018-09-05 20:10:02 +02:00
parent 8cbb0c76ba
commit fd9a0368b9
3 changed files with 42 additions and 16 deletions
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18
src/util/vircgroup.c
View File

@ -1818,10 +1818,7 @@ virCgroupGetCpusetCpus(virCgroupPtr group, char **cpus)
int
virCgroupDenyAllDevices(virCgroupPtr group)
{
return virCgroupSetValueStr(group,
VIR_CGROUP_CONTROLLER_DEVICES,
"devices.deny",
"a");
VIR_CGROUP_BACKEND_CALL(group, denyAllDevices, -1);
}
/**
@ -1841,18 +1838,7 @@ virCgroupDenyAllDevices(virCgroupPtr group)
int
virCgroupAllowAllDevices(virCgroupPtr group, int perms)
{
int ret = -1;
if (virCgroupAllowDevice(group, 'b', -1, -1, perms) < 0)
goto cleanup;
if (virCgroupAllowDevice(group, 'c', -1, -1, perms) < 0)
goto cleanup;
ret = 0;
cleanup:
return ret;
VIR_CGROUP_BACKEND_CALL(group, allowAllDevices, -1, perms);
}

9
src/util/vircgroupbackend.h
View File

@ -269,6 +269,13 @@ typedef int
int minor,
int perms);
typedef int
(*virCgroupAllowAllDevicesCB)(virCgroupPtr group,
int perms);
typedef int
(*virCgroupDenyAllDevicesCB)(virCgroupPtr group);
struct _virCgroupBackend {
virCgroupBackendType type;
@ -321,6 +328,8 @@ struct _virCgroupBackend {
virCgroupAllowDeviceCB allowDevice;
virCgroupDenyDeviceCB denyDevice;
virCgroupAllowAllDevicesCB allowAllDevices;
virCgroupDenyAllDevicesCB denyAllDevices;
};
typedef struct _virCgroupBackend virCgroupBackend;
typedef virCgroupBackend *virCgroupBackendPtr;

31
src/util/vircgroupv1.c
View File

@ -1736,6 +1736,35 @@ virCgroupV1DenyDevice(virCgroupPtr group,
}
static int
virCgroupV1AllowAllDevices(virCgroupPtr group,
int perms)
{
int ret = -1;
if (virCgroupV1AllowDevice(group, 'b', -1, -1, perms) < 0)
goto cleanup;
if (virCgroupV1AllowDevice(group, 'c', -1, -1, perms) < 0)
goto cleanup;
ret = 0;
cleanup:
return ret;
}
static int
virCgroupV1DenyAllDevices(virCgroupPtr group)
{
return virCgroupSetValueStr(group,
VIR_CGROUP_CONTROLLER_DEVICES,
"devices.deny",
"a");
}
virCgroupBackend virCgroupV1Backend = {
.type = VIR_CGROUP_BACKEND_TYPE_V1,
@ -1786,6 +1815,8 @@ virCgroupBackend virCgroupV1Backend = {
.allowDevice = virCgroupV1AllowDevice,
.denyDevice = virCgroupV1DenyDevice,
.allowAllDevices = virCgroupV1AllowAllDevices,
.denyAllDevices = virCgroupV1DenyAllDevices,
};