libvirt/SOURCES/libvirt-vircgroup-extract-v...

141 lines
4.0 KiB
Diff

From 4cf3b3d335b83b5feb49e71775b6a8f1fddbbce9 Mon Sep 17 00:00:00 2001
Message-Id: <4cf3b3d335b83b5feb49e71775b6a8f1fddbbce9@dist-git>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Mon, 1 Jul 2019 17:06:55 +0200
Subject: [PATCH] vircgroup: extract virCgroupV1(Allow|Deny)AllDevices
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
(cherry picked from commit fd9a0368b91c425f860115c0451067ee917574d1)
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1689297
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Message-Id: <cec0c47305736e9da14175d4002509b5583e4ab0.1561993100.git.phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
src/util/vircgroup.c | 18 ++----------------
src/util/vircgroupbackend.h | 9 +++++++++
src/util/vircgroupv1.c | 31 +++++++++++++++++++++++++++++++
3 files changed, 42 insertions(+), 16 deletions(-)
diff --git a/src/util/vircgroup.c b/src/util/vircgroup.c
index a30fc6241d..67c68f3dc6 100644
--- a/src/util/vircgroup.c
+++ b/src/util/vircgroup.c
@@ -1822,10 +1822,7 @@ 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);
}
/**
@@ -1845,18 +1842,7 @@ 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);
}
diff --git a/src/util/vircgroupbackend.h b/src/util/vircgroupbackend.h
index 04897b5895..436c83f6fa 100644
--- a/src/util/vircgroupbackend.h
+++ b/src/util/vircgroupbackend.h
@@ -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;
diff --git a/src/util/vircgroupv1.c b/src/util/vircgroupv1.c
index 02cd7ab956..34393812d2 100644
--- a/src/util/vircgroupv1.c
+++ b/src/util/vircgroupv1.c
@@ -1737,6 +1737,35 @@ 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,
@@ -1787,6 +1816,8 @@ virCgroupBackend virCgroupV1Backend = {
.allowDevice = virCgroupV1AllowDevice,
.denyDevice = virCgroupV1DenyDevice,
+ .allowAllDevices = virCgroupV1AllowAllDevices,
+ .denyAllDevices = virCgroupV1DenyAllDevices,
};
--
2.22.0