[libvirt] [PATCH v3 10/12] LXC: controller: change the owner of devices created on host

[Gao feng]

Since these devices are created for the container.
the owner should be the root user of the container.

Signed-off-by: Gao feng <gaofeng at cn.fujitsu.com>
---
 src/lxc/lxc_controller.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/lxc/lxc_controller.c b/src/lxc/lxc_controller.c
index f892ce3..b2ace20 100644
--- a/src/lxc/lxc_controller.c
+++ b/src/lxc/lxc_controller.c
@@ -1260,6 +1260,8 @@ static int virLXCControllerPopulateDevices(virLXCControllerPtr ctrl)
     size_t i;
     int ret = -1;
     char *path = NULL;
+    uid_t uid = (uid_t)-1;
+    gid_t gid = (gid_t)-1;
     const struct {
         int maj;
         int min;
@@ -1276,6 +1278,11 @@ static int virLXCControllerPopulateDevices(virLXCControllerPtr ctrl)
     if (virLXCControllerSetupDev(ctrl) < 0)
         goto out;
 
+    if (ctrl->def->idmap.uidmap) {
+        uid = ctrl->def->idmap.uidmap[0].target;
+        gid = ctrl->def->idmap.gidmap[0].target;
+    }
+
     /* Populate /dev/ with a few important bits */
     for (i = 0 ; i < ARRAY_CARDINALITY(devs) ; i++) {
         if (virAsprintf(&path, "/%s/%s.dev/%s",
@@ -1293,6 +1300,13 @@ static int virLXCControllerPopulateDevices(virLXCControllerPtr ctrl)
                                  devs[i].path);
             goto out;
         }
+
+        if (chown(path, uid, gid) < 0) {
+            virReportSystemError(errno,
+                                 _("Failed to change owner of %s to %u:%u"),
+                                 devs[i].path, uid, gid);
+            goto out;
+        }
         VIR_FREE(path);
     }
 
-- 
1.8.1.4